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 #include <linux/bitops.h> 41 42 #include <scsi/scsi.h> 43 #include <scsi/scsi_device.h> 44 #include <scsi/scsi_host.h> 45 #include <scsi/scsi_transport_fc.h> 46 #include <scsi/scsi_tcq.h> 47 #include <scsi/fc/fc_fs.h> 48 49 #include <linux/nvme-fc-driver.h> 50 51 #include "lpfc_hw4.h" 52 #include "lpfc_hw.h" 53 #include "lpfc_sli.h" 54 #include "lpfc_sli4.h" 55 #include "lpfc_nl.h" 56 #include "lpfc_disc.h" 57 #include "lpfc.h" 58 #include "lpfc_scsi.h" 59 #include "lpfc_nvme.h" 60 #include "lpfc_nvmet.h" 61 #include "lpfc_logmsg.h" 62 #include "lpfc_crtn.h" 63 #include "lpfc_vport.h" 64 #include "lpfc_version.h" 65 #include "lpfc_ids.h" 66 67 char *_dump_buf_data; 68 unsigned long _dump_buf_data_order; 69 char *_dump_buf_dif; 70 unsigned long _dump_buf_dif_order; 71 spinlock_t _dump_buf_lock; 72 73 /* Used when mapping IRQ vectors in a driver centric manner */ 74 uint16_t *lpfc_used_cpu; 75 uint32_t lpfc_present_cpu; 76 77 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 78 static int lpfc_post_rcv_buf(struct lpfc_hba *); 79 static int lpfc_sli4_queue_verify(struct lpfc_hba *); 80 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 81 static int lpfc_setup_endian_order(struct lpfc_hba *); 82 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 83 static void lpfc_free_els_sgl_list(struct lpfc_hba *); 84 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *); 85 static void lpfc_init_sgl_list(struct lpfc_hba *); 86 static int lpfc_init_active_sgl_array(struct lpfc_hba *); 87 static void lpfc_free_active_sgl(struct lpfc_hba *); 88 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 89 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 90 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 91 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 92 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 93 static void lpfc_sli4_disable_intr(struct lpfc_hba *); 94 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t); 95 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba); 96 97 static struct scsi_transport_template *lpfc_transport_template = NULL; 98 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 99 static DEFINE_IDR(lpfc_hba_index); 100 #define LPFC_NVMET_BUF_POST 254 101 102 /** 103 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 104 * @phba: pointer to lpfc hba data structure. 105 * 106 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 107 * mailbox command. It retrieves the revision information from the HBA and 108 * collects the Vital Product Data (VPD) about the HBA for preparing the 109 * configuration of the HBA. 110 * 111 * Return codes: 112 * 0 - success. 113 * -ERESTART - requests the SLI layer to reset the HBA and try again. 114 * Any other value - indicates an error. 115 **/ 116 int 117 lpfc_config_port_prep(struct lpfc_hba *phba) 118 { 119 lpfc_vpd_t *vp = &phba->vpd; 120 int i = 0, rc; 121 LPFC_MBOXQ_t *pmb; 122 MAILBOX_t *mb; 123 char *lpfc_vpd_data = NULL; 124 uint16_t offset = 0; 125 static char licensed[56] = 126 "key unlock for use with gnu public licensed code only\0"; 127 static int init_key = 1; 128 129 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 130 if (!pmb) { 131 phba->link_state = LPFC_HBA_ERROR; 132 return -ENOMEM; 133 } 134 135 mb = &pmb->u.mb; 136 phba->link_state = LPFC_INIT_MBX_CMDS; 137 138 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 139 if (init_key) { 140 uint32_t *ptext = (uint32_t *) licensed; 141 142 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 143 *ptext = cpu_to_be32(*ptext); 144 init_key = 0; 145 } 146 147 lpfc_read_nv(phba, pmb); 148 memset((char*)mb->un.varRDnvp.rsvd3, 0, 149 sizeof (mb->un.varRDnvp.rsvd3)); 150 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 151 sizeof (licensed)); 152 153 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 154 155 if (rc != MBX_SUCCESS) { 156 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 157 "0324 Config Port initialization " 158 "error, mbxCmd x%x READ_NVPARM, " 159 "mbxStatus x%x\n", 160 mb->mbxCommand, mb->mbxStatus); 161 mempool_free(pmb, phba->mbox_mem_pool); 162 return -ERESTART; 163 } 164 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 165 sizeof(phba->wwnn)); 166 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 167 sizeof(phba->wwpn)); 168 } 169 170 phba->sli3_options = 0x0; 171 172 /* Setup and issue mailbox READ REV command */ 173 lpfc_read_rev(phba, pmb); 174 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 175 if (rc != MBX_SUCCESS) { 176 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 177 "0439 Adapter failed to init, mbxCmd x%x " 178 "READ_REV, mbxStatus x%x\n", 179 mb->mbxCommand, mb->mbxStatus); 180 mempool_free( pmb, phba->mbox_mem_pool); 181 return -ERESTART; 182 } 183 184 185 /* 186 * The value of rr must be 1 since the driver set the cv field to 1. 187 * This setting requires the FW to set all revision fields. 188 */ 189 if (mb->un.varRdRev.rr == 0) { 190 vp->rev.rBit = 0; 191 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 192 "0440 Adapter failed to init, READ_REV has " 193 "missing revision information.\n"); 194 mempool_free(pmb, phba->mbox_mem_pool); 195 return -ERESTART; 196 } 197 198 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 199 mempool_free(pmb, phba->mbox_mem_pool); 200 return -EINVAL; 201 } 202 203 /* Save information as VPD data */ 204 vp->rev.rBit = 1; 205 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 206 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 207 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 208 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 209 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 210 vp->rev.biuRev = mb->un.varRdRev.biuRev; 211 vp->rev.smRev = mb->un.varRdRev.smRev; 212 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 213 vp->rev.endecRev = mb->un.varRdRev.endecRev; 214 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 215 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 216 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 217 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 218 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 219 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 220 221 /* If the sli feature level is less then 9, we must 222 * tear down all RPIs and VPIs on link down if NPIV 223 * is enabled. 224 */ 225 if (vp->rev.feaLevelHigh < 9) 226 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 227 228 if (lpfc_is_LC_HBA(phba->pcidev->device)) 229 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 230 sizeof (phba->RandomData)); 231 232 /* Get adapter VPD information */ 233 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 234 if (!lpfc_vpd_data) 235 goto out_free_mbox; 236 do { 237 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 238 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 239 240 if (rc != MBX_SUCCESS) { 241 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 242 "0441 VPD not present on adapter, " 243 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 244 mb->mbxCommand, mb->mbxStatus); 245 mb->un.varDmp.word_cnt = 0; 246 } 247 /* dump mem may return a zero when finished or we got a 248 * mailbox error, either way we are done. 249 */ 250 if (mb->un.varDmp.word_cnt == 0) 251 break; 252 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 253 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 254 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 255 lpfc_vpd_data + offset, 256 mb->un.varDmp.word_cnt); 257 offset += mb->un.varDmp.word_cnt; 258 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 259 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 260 261 kfree(lpfc_vpd_data); 262 out_free_mbox: 263 mempool_free(pmb, phba->mbox_mem_pool); 264 return 0; 265 } 266 267 /** 268 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 269 * @phba: pointer to lpfc hba data structure. 270 * @pmboxq: pointer to the driver internal queue element for mailbox command. 271 * 272 * This is the completion handler for driver's configuring asynchronous event 273 * mailbox command to the device. If the mailbox command returns successfully, 274 * it will set internal async event support flag to 1; otherwise, it will 275 * set internal async event support flag to 0. 276 **/ 277 static void 278 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 279 { 280 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 281 phba->temp_sensor_support = 1; 282 else 283 phba->temp_sensor_support = 0; 284 mempool_free(pmboxq, phba->mbox_mem_pool); 285 return; 286 } 287 288 /** 289 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 290 * @phba: pointer to lpfc hba data structure. 291 * @pmboxq: pointer to the driver internal queue element for mailbox command. 292 * 293 * This is the completion handler for dump mailbox command for getting 294 * wake up parameters. When this command complete, the response contain 295 * Option rom version of the HBA. This function translate the version number 296 * into a human readable string and store it in OptionROMVersion. 297 **/ 298 static void 299 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 300 { 301 struct prog_id *prg; 302 uint32_t prog_id_word; 303 char dist = ' '; 304 /* character array used for decoding dist type. */ 305 char dist_char[] = "nabx"; 306 307 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 308 mempool_free(pmboxq, phba->mbox_mem_pool); 309 return; 310 } 311 312 prg = (struct prog_id *) &prog_id_word; 313 314 /* word 7 contain option rom version */ 315 prog_id_word = pmboxq->u.mb.un.varWords[7]; 316 317 /* Decode the Option rom version word to a readable string */ 318 if (prg->dist < 4) 319 dist = dist_char[prg->dist]; 320 321 if ((prg->dist == 3) && (prg->num == 0)) 322 snprintf(phba->OptionROMVersion, 32, "%d.%d%d", 323 prg->ver, prg->rev, prg->lev); 324 else 325 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d", 326 prg->ver, prg->rev, prg->lev, 327 dist, prg->num); 328 mempool_free(pmboxq, phba->mbox_mem_pool); 329 return; 330 } 331 332 /** 333 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, 334 * cfg_soft_wwnn, cfg_soft_wwpn 335 * @vport: pointer to lpfc vport data structure. 336 * 337 * 338 * Return codes 339 * None. 340 **/ 341 void 342 lpfc_update_vport_wwn(struct lpfc_vport *vport) 343 { 344 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level; 345 u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0]; 346 347 /* If the soft name exists then update it using the service params */ 348 if (vport->phba->cfg_soft_wwnn) 349 u64_to_wwn(vport->phba->cfg_soft_wwnn, 350 vport->fc_sparam.nodeName.u.wwn); 351 if (vport->phba->cfg_soft_wwpn) 352 u64_to_wwn(vport->phba->cfg_soft_wwpn, 353 vport->fc_sparam.portName.u.wwn); 354 355 /* 356 * If the name is empty or there exists a soft name 357 * then copy the service params name, otherwise use the fc name 358 */ 359 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) 360 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 361 sizeof(struct lpfc_name)); 362 else 363 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, 364 sizeof(struct lpfc_name)); 365 366 /* 367 * If the port name has changed, then set the Param changes flag 368 * to unreg the login 369 */ 370 if (vport->fc_portname.u.wwn[0] != 0 && 371 memcmp(&vport->fc_portname, &vport->fc_sparam.portName, 372 sizeof(struct lpfc_name))) 373 vport->vport_flag |= FAWWPN_PARAM_CHG; 374 375 if (vport->fc_portname.u.wwn[0] == 0 || 376 vport->phba->cfg_soft_wwpn || 377 (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) || 378 vport->vport_flag & FAWWPN_SET) { 379 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 380 sizeof(struct lpfc_name)); 381 vport->vport_flag &= ~FAWWPN_SET; 382 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) 383 vport->vport_flag |= FAWWPN_SET; 384 } 385 else 386 memcpy(&vport->fc_sparam.portName, &vport->fc_portname, 387 sizeof(struct lpfc_name)); 388 } 389 390 /** 391 * lpfc_config_port_post - Perform lpfc initialization after config port 392 * @phba: pointer to lpfc hba data structure. 393 * 394 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 395 * command call. It performs all internal resource and state setups on the 396 * port: post IOCB buffers, enable appropriate host interrupt attentions, 397 * ELS ring timers, etc. 398 * 399 * Return codes 400 * 0 - success. 401 * Any other value - error. 402 **/ 403 int 404 lpfc_config_port_post(struct lpfc_hba *phba) 405 { 406 struct lpfc_vport *vport = phba->pport; 407 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 408 LPFC_MBOXQ_t *pmb; 409 MAILBOX_t *mb; 410 struct lpfc_dmabuf *mp; 411 struct lpfc_sli *psli = &phba->sli; 412 uint32_t status, timeout; 413 int i, j; 414 int rc; 415 416 spin_lock_irq(&phba->hbalock); 417 /* 418 * If the Config port completed correctly the HBA is not 419 * over heated any more. 420 */ 421 if (phba->over_temp_state == HBA_OVER_TEMP) 422 phba->over_temp_state = HBA_NORMAL_TEMP; 423 spin_unlock_irq(&phba->hbalock); 424 425 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 426 if (!pmb) { 427 phba->link_state = LPFC_HBA_ERROR; 428 return -ENOMEM; 429 } 430 mb = &pmb->u.mb; 431 432 /* Get login parameters for NID. */ 433 rc = lpfc_read_sparam(phba, pmb, 0); 434 if (rc) { 435 mempool_free(pmb, phba->mbox_mem_pool); 436 return -ENOMEM; 437 } 438 439 pmb->vport = vport; 440 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 441 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 442 "0448 Adapter failed init, mbxCmd x%x " 443 "READ_SPARM mbxStatus x%x\n", 444 mb->mbxCommand, mb->mbxStatus); 445 phba->link_state = LPFC_HBA_ERROR; 446 mp = (struct lpfc_dmabuf *) pmb->context1; 447 mempool_free(pmb, phba->mbox_mem_pool); 448 lpfc_mbuf_free(phba, mp->virt, mp->phys); 449 kfree(mp); 450 return -EIO; 451 } 452 453 mp = (struct lpfc_dmabuf *) pmb->context1; 454 455 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 456 lpfc_mbuf_free(phba, mp->virt, mp->phys); 457 kfree(mp); 458 pmb->context1 = NULL; 459 lpfc_update_vport_wwn(vport); 460 461 /* Update the fc_host data structures with new wwn. */ 462 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 463 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 464 fc_host_max_npiv_vports(shost) = phba->max_vpi; 465 466 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 467 /* This should be consolidated into parse_vpd ? - mr */ 468 if (phba->SerialNumber[0] == 0) { 469 uint8_t *outptr; 470 471 outptr = &vport->fc_nodename.u.s.IEEE[0]; 472 for (i = 0; i < 12; i++) { 473 status = *outptr++; 474 j = ((status & 0xf0) >> 4); 475 if (j <= 9) 476 phba->SerialNumber[i] = 477 (char)((uint8_t) 0x30 + (uint8_t) j); 478 else 479 phba->SerialNumber[i] = 480 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 481 i++; 482 j = (status & 0xf); 483 if (j <= 9) 484 phba->SerialNumber[i] = 485 (char)((uint8_t) 0x30 + (uint8_t) j); 486 else 487 phba->SerialNumber[i] = 488 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 489 } 490 } 491 492 lpfc_read_config(phba, pmb); 493 pmb->vport = vport; 494 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 495 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 496 "0453 Adapter failed to init, mbxCmd x%x " 497 "READ_CONFIG, mbxStatus x%x\n", 498 mb->mbxCommand, mb->mbxStatus); 499 phba->link_state = LPFC_HBA_ERROR; 500 mempool_free( pmb, phba->mbox_mem_pool); 501 return -EIO; 502 } 503 504 /* Check if the port is disabled */ 505 lpfc_sli_read_link_ste(phba); 506 507 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 508 i = (mb->un.varRdConfig.max_xri + 1); 509 if (phba->cfg_hba_queue_depth > i) { 510 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 511 "3359 HBA queue depth changed from %d to %d\n", 512 phba->cfg_hba_queue_depth, i); 513 phba->cfg_hba_queue_depth = i; 514 } 515 516 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */ 517 i = (mb->un.varRdConfig.max_xri >> 3); 518 if (phba->pport->cfg_lun_queue_depth > i) { 519 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 520 "3360 LUN queue depth changed from %d to %d\n", 521 phba->pport->cfg_lun_queue_depth, i); 522 phba->pport->cfg_lun_queue_depth = i; 523 } 524 525 phba->lmt = mb->un.varRdConfig.lmt; 526 527 /* Get the default values for Model Name and Description */ 528 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 529 530 phba->link_state = LPFC_LINK_DOWN; 531 532 /* Only process IOCBs on ELS ring till hba_state is READY */ 533 if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr) 534 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT; 535 if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr) 536 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT; 537 538 /* Post receive buffers for desired rings */ 539 if (phba->sli_rev != 3) 540 lpfc_post_rcv_buf(phba); 541 542 /* 543 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 544 */ 545 if (phba->intr_type == MSIX) { 546 rc = lpfc_config_msi(phba, pmb); 547 if (rc) { 548 mempool_free(pmb, phba->mbox_mem_pool); 549 return -EIO; 550 } 551 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 552 if (rc != MBX_SUCCESS) { 553 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 554 "0352 Config MSI mailbox command " 555 "failed, mbxCmd x%x, mbxStatus x%x\n", 556 pmb->u.mb.mbxCommand, 557 pmb->u.mb.mbxStatus); 558 mempool_free(pmb, phba->mbox_mem_pool); 559 return -EIO; 560 } 561 } 562 563 spin_lock_irq(&phba->hbalock); 564 /* Initialize ERATT handling flag */ 565 phba->hba_flag &= ~HBA_ERATT_HANDLED; 566 567 /* Enable appropriate host interrupts */ 568 if (lpfc_readl(phba->HCregaddr, &status)) { 569 spin_unlock_irq(&phba->hbalock); 570 return -EIO; 571 } 572 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 573 if (psli->num_rings > 0) 574 status |= HC_R0INT_ENA; 575 if (psli->num_rings > 1) 576 status |= HC_R1INT_ENA; 577 if (psli->num_rings > 2) 578 status |= HC_R2INT_ENA; 579 if (psli->num_rings > 3) 580 status |= HC_R3INT_ENA; 581 582 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 583 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 584 status &= ~(HC_R0INT_ENA); 585 586 writel(status, phba->HCregaddr); 587 readl(phba->HCregaddr); /* flush */ 588 spin_unlock_irq(&phba->hbalock); 589 590 /* Set up ring-0 (ELS) timer */ 591 timeout = phba->fc_ratov * 2; 592 mod_timer(&vport->els_tmofunc, 593 jiffies + msecs_to_jiffies(1000 * timeout)); 594 /* Set up heart beat (HB) timer */ 595 mod_timer(&phba->hb_tmofunc, 596 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 597 phba->hb_outstanding = 0; 598 phba->last_completion_time = jiffies; 599 /* Set up error attention (ERATT) polling timer */ 600 mod_timer(&phba->eratt_poll, 601 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval)); 602 603 if (phba->hba_flag & LINK_DISABLED) { 604 lpfc_printf_log(phba, 605 KERN_ERR, LOG_INIT, 606 "2598 Adapter Link is disabled.\n"); 607 lpfc_down_link(phba, pmb); 608 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 609 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 610 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 611 lpfc_printf_log(phba, 612 KERN_ERR, LOG_INIT, 613 "2599 Adapter failed to issue DOWN_LINK" 614 " mbox command rc 0x%x\n", rc); 615 616 mempool_free(pmb, phba->mbox_mem_pool); 617 return -EIO; 618 } 619 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 620 mempool_free(pmb, phba->mbox_mem_pool); 621 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 622 if (rc) 623 return rc; 624 } 625 /* MBOX buffer will be freed in mbox compl */ 626 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 627 if (!pmb) { 628 phba->link_state = LPFC_HBA_ERROR; 629 return -ENOMEM; 630 } 631 632 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 633 pmb->mbox_cmpl = lpfc_config_async_cmpl; 634 pmb->vport = phba->pport; 635 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 636 637 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 638 lpfc_printf_log(phba, 639 KERN_ERR, 640 LOG_INIT, 641 "0456 Adapter failed to issue " 642 "ASYNCEVT_ENABLE mbox status x%x\n", 643 rc); 644 mempool_free(pmb, phba->mbox_mem_pool); 645 } 646 647 /* Get Option rom version */ 648 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 649 if (!pmb) { 650 phba->link_state = LPFC_HBA_ERROR; 651 return -ENOMEM; 652 } 653 654 lpfc_dump_wakeup_param(phba, pmb); 655 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 656 pmb->vport = phba->pport; 657 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 658 659 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 660 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 661 "to get Option ROM version status x%x\n", rc); 662 mempool_free(pmb, phba->mbox_mem_pool); 663 } 664 665 return 0; 666 } 667 668 /** 669 * lpfc_hba_init_link - Initialize the FC link 670 * @phba: pointer to lpfc hba data structure. 671 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 672 * 673 * This routine will issue the INIT_LINK mailbox command call. 674 * It is available to other drivers through the lpfc_hba data 675 * structure for use as a delayed link up mechanism with the 676 * module parameter lpfc_suppress_link_up. 677 * 678 * Return code 679 * 0 - success 680 * Any other value - error 681 **/ 682 static int 683 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 684 { 685 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); 686 } 687 688 /** 689 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology 690 * @phba: pointer to lpfc hba data structure. 691 * @fc_topology: desired fc topology. 692 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 693 * 694 * This routine will issue the INIT_LINK mailbox command call. 695 * It is available to other drivers through the lpfc_hba data 696 * structure for use as a delayed link up mechanism with the 697 * module parameter lpfc_suppress_link_up. 698 * 699 * Return code 700 * 0 - success 701 * Any other value - error 702 **/ 703 int 704 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, 705 uint32_t flag) 706 { 707 struct lpfc_vport *vport = phba->pport; 708 LPFC_MBOXQ_t *pmb; 709 MAILBOX_t *mb; 710 int rc; 711 712 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 713 if (!pmb) { 714 phba->link_state = LPFC_HBA_ERROR; 715 return -ENOMEM; 716 } 717 mb = &pmb->u.mb; 718 pmb->vport = vport; 719 720 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || 721 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && 722 !(phba->lmt & LMT_1Gb)) || 723 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && 724 !(phba->lmt & LMT_2Gb)) || 725 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && 726 !(phba->lmt & LMT_4Gb)) || 727 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && 728 !(phba->lmt & LMT_8Gb)) || 729 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && 730 !(phba->lmt & LMT_10Gb)) || 731 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && 732 !(phba->lmt & LMT_16Gb)) || 733 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) && 734 !(phba->lmt & LMT_32Gb))) { 735 /* Reset link speed to auto */ 736 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 737 "1302 Invalid speed for this board:%d " 738 "Reset link speed to auto.\n", 739 phba->cfg_link_speed); 740 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 741 } 742 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); 743 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 744 if (phba->sli_rev < LPFC_SLI_REV4) 745 lpfc_set_loopback_flag(phba); 746 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 747 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 748 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 749 "0498 Adapter failed to init, mbxCmd x%x " 750 "INIT_LINK, mbxStatus x%x\n", 751 mb->mbxCommand, mb->mbxStatus); 752 if (phba->sli_rev <= LPFC_SLI_REV3) { 753 /* Clear all interrupt enable conditions */ 754 writel(0, phba->HCregaddr); 755 readl(phba->HCregaddr); /* flush */ 756 /* Clear all pending interrupts */ 757 writel(0xffffffff, phba->HAregaddr); 758 readl(phba->HAregaddr); /* flush */ 759 } 760 phba->link_state = LPFC_HBA_ERROR; 761 if (rc != MBX_BUSY || flag == MBX_POLL) 762 mempool_free(pmb, phba->mbox_mem_pool); 763 return -EIO; 764 } 765 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 766 if (flag == MBX_POLL) 767 mempool_free(pmb, phba->mbox_mem_pool); 768 769 return 0; 770 } 771 772 /** 773 * lpfc_hba_down_link - this routine downs the FC link 774 * @phba: pointer to lpfc hba data structure. 775 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 776 * 777 * This routine will issue the DOWN_LINK mailbox command call. 778 * It is available to other drivers through the lpfc_hba data 779 * structure for use to stop the link. 780 * 781 * Return code 782 * 0 - success 783 * Any other value - error 784 **/ 785 static int 786 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 787 { 788 LPFC_MBOXQ_t *pmb; 789 int rc; 790 791 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 792 if (!pmb) { 793 phba->link_state = LPFC_HBA_ERROR; 794 return -ENOMEM; 795 } 796 797 lpfc_printf_log(phba, 798 KERN_ERR, LOG_INIT, 799 "0491 Adapter Link is disabled.\n"); 800 lpfc_down_link(phba, pmb); 801 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 802 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 803 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 804 lpfc_printf_log(phba, 805 KERN_ERR, LOG_INIT, 806 "2522 Adapter failed to issue DOWN_LINK" 807 " mbox command rc 0x%x\n", rc); 808 809 mempool_free(pmb, phba->mbox_mem_pool); 810 return -EIO; 811 } 812 if (flag == MBX_POLL) 813 mempool_free(pmb, phba->mbox_mem_pool); 814 815 return 0; 816 } 817 818 /** 819 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 820 * @phba: pointer to lpfc HBA data structure. 821 * 822 * This routine will do LPFC uninitialization before the HBA is reset when 823 * bringing down the SLI Layer. 824 * 825 * Return codes 826 * 0 - success. 827 * Any other value - error. 828 **/ 829 int 830 lpfc_hba_down_prep(struct lpfc_hba *phba) 831 { 832 struct lpfc_vport **vports; 833 int i; 834 835 if (phba->sli_rev <= LPFC_SLI_REV3) { 836 /* Disable interrupts */ 837 writel(0, phba->HCregaddr); 838 readl(phba->HCregaddr); /* flush */ 839 } 840 841 if (phba->pport->load_flag & FC_UNLOADING) 842 lpfc_cleanup_discovery_resources(phba->pport); 843 else { 844 vports = lpfc_create_vport_work_array(phba); 845 if (vports != NULL) 846 for (i = 0; i <= phba->max_vports && 847 vports[i] != NULL; i++) 848 lpfc_cleanup_discovery_resources(vports[i]); 849 lpfc_destroy_vport_work_array(phba, vports); 850 } 851 return 0; 852 } 853 854 /** 855 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free 856 * rspiocb which got deferred 857 * 858 * @phba: pointer to lpfc HBA data structure. 859 * 860 * This routine will cleanup completed slow path events after HBA is reset 861 * when bringing down the SLI Layer. 862 * 863 * 864 * Return codes 865 * void. 866 **/ 867 static void 868 lpfc_sli4_free_sp_events(struct lpfc_hba *phba) 869 { 870 struct lpfc_iocbq *rspiocbq; 871 struct hbq_dmabuf *dmabuf; 872 struct lpfc_cq_event *cq_event; 873 874 spin_lock_irq(&phba->hbalock); 875 phba->hba_flag &= ~HBA_SP_QUEUE_EVT; 876 spin_unlock_irq(&phba->hbalock); 877 878 while (!list_empty(&phba->sli4_hba.sp_queue_event)) { 879 /* Get the response iocb from the head of work queue */ 880 spin_lock_irq(&phba->hbalock); 881 list_remove_head(&phba->sli4_hba.sp_queue_event, 882 cq_event, struct lpfc_cq_event, list); 883 spin_unlock_irq(&phba->hbalock); 884 885 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) { 886 case CQE_CODE_COMPL_WQE: 887 rspiocbq = container_of(cq_event, struct lpfc_iocbq, 888 cq_event); 889 lpfc_sli_release_iocbq(phba, rspiocbq); 890 break; 891 case CQE_CODE_RECEIVE: 892 case CQE_CODE_RECEIVE_V1: 893 dmabuf = container_of(cq_event, struct hbq_dmabuf, 894 cq_event); 895 lpfc_in_buf_free(phba, &dmabuf->dbuf); 896 } 897 } 898 } 899 900 /** 901 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset 902 * @phba: pointer to lpfc HBA data structure. 903 * 904 * This routine will cleanup posted ELS buffers after the HBA is reset 905 * when bringing down the SLI Layer. 906 * 907 * 908 * Return codes 909 * void. 910 **/ 911 static void 912 lpfc_hba_free_post_buf(struct lpfc_hba *phba) 913 { 914 struct lpfc_sli *psli = &phba->sli; 915 struct lpfc_sli_ring *pring; 916 struct lpfc_dmabuf *mp, *next_mp; 917 LIST_HEAD(buflist); 918 int count; 919 920 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 921 lpfc_sli_hbqbuf_free_all(phba); 922 else { 923 /* Cleanup preposted buffers on the ELS ring */ 924 pring = &psli->sli3_ring[LPFC_ELS_RING]; 925 spin_lock_irq(&phba->hbalock); 926 list_splice_init(&pring->postbufq, &buflist); 927 spin_unlock_irq(&phba->hbalock); 928 929 count = 0; 930 list_for_each_entry_safe(mp, next_mp, &buflist, list) { 931 list_del(&mp->list); 932 count++; 933 lpfc_mbuf_free(phba, mp->virt, mp->phys); 934 kfree(mp); 935 } 936 937 spin_lock_irq(&phba->hbalock); 938 pring->postbufq_cnt -= count; 939 spin_unlock_irq(&phba->hbalock); 940 } 941 } 942 943 /** 944 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset 945 * @phba: pointer to lpfc HBA data structure. 946 * 947 * This routine will cleanup the txcmplq after the HBA is reset when bringing 948 * down the SLI Layer. 949 * 950 * Return codes 951 * void 952 **/ 953 static void 954 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba) 955 { 956 struct lpfc_sli *psli = &phba->sli; 957 struct lpfc_queue *qp = NULL; 958 struct lpfc_sli_ring *pring; 959 LIST_HEAD(completions); 960 int i; 961 962 if (phba->sli_rev != LPFC_SLI_REV4) { 963 for (i = 0; i < psli->num_rings; i++) { 964 pring = &psli->sli3_ring[i]; 965 spin_lock_irq(&phba->hbalock); 966 /* At this point in time the HBA is either reset or DOA 967 * Nothing should be on txcmplq as it will 968 * NEVER complete. 969 */ 970 list_splice_init(&pring->txcmplq, &completions); 971 pring->txcmplq_cnt = 0; 972 spin_unlock_irq(&phba->hbalock); 973 974 lpfc_sli_abort_iocb_ring(phba, pring); 975 } 976 /* Cancel all the IOCBs from the completions list */ 977 lpfc_sli_cancel_iocbs(phba, &completions, 978 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 979 return; 980 } 981 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 982 pring = qp->pring; 983 if (!pring) 984 continue; 985 spin_lock_irq(&pring->ring_lock); 986 list_splice_init(&pring->txcmplq, &completions); 987 pring->txcmplq_cnt = 0; 988 spin_unlock_irq(&pring->ring_lock); 989 lpfc_sli_abort_iocb_ring(phba, pring); 990 } 991 /* Cancel all the IOCBs from the completions list */ 992 lpfc_sli_cancel_iocbs(phba, &completions, 993 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 994 } 995 996 /** 997 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 998 int i; 999 * @phba: pointer to lpfc HBA data structure. 1000 * 1001 * This routine will do uninitialization after the HBA is reset when bring 1002 * down the SLI Layer. 1003 * 1004 * Return codes 1005 * 0 - success. 1006 * Any other value - error. 1007 **/ 1008 static int 1009 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 1010 { 1011 lpfc_hba_free_post_buf(phba); 1012 lpfc_hba_clean_txcmplq(phba); 1013 return 0; 1014 } 1015 1016 /** 1017 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 1018 * @phba: pointer to lpfc HBA data structure. 1019 * 1020 * This routine will do uninitialization after the HBA is reset when bring 1021 * down the SLI Layer. 1022 * 1023 * Return codes 1024 * 0 - success. 1025 * Any other value - error. 1026 **/ 1027 static int 1028 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 1029 { 1030 struct lpfc_scsi_buf *psb, *psb_next; 1031 struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next; 1032 LIST_HEAD(aborts); 1033 LIST_HEAD(nvme_aborts); 1034 LIST_HEAD(nvmet_aborts); 1035 unsigned long iflag = 0; 1036 struct lpfc_sglq *sglq_entry = NULL; 1037 1038 1039 lpfc_sli_hbqbuf_free_all(phba); 1040 lpfc_hba_clean_txcmplq(phba); 1041 1042 /* At this point in time the HBA is either reset or DOA. Either 1043 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 1044 * on the lpfc_els_sgl_list so that it can either be freed if the 1045 * driver is unloading or reposted if the driver is restarting 1046 * the port. 1047 */ 1048 spin_lock_irq(&phba->hbalock); /* required for lpfc_els_sgl_list and */ 1049 /* scsl_buf_list */ 1050 /* sgl_list_lock required because worker thread uses this 1051 * list. 1052 */ 1053 spin_lock(&phba->sli4_hba.sgl_list_lock); 1054 list_for_each_entry(sglq_entry, 1055 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 1056 sglq_entry->state = SGL_FREED; 1057 1058 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 1059 &phba->sli4_hba.lpfc_els_sgl_list); 1060 1061 1062 spin_unlock(&phba->sli4_hba.sgl_list_lock); 1063 /* abts_scsi_buf_list_lock required because worker thread uses this 1064 * list. 1065 */ 1066 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 1067 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 1068 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 1069 &aborts); 1070 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 1071 } 1072 1073 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 1074 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); 1075 list_splice_init(&phba->sli4_hba.lpfc_abts_nvme_buf_list, 1076 &nvme_aborts); 1077 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 1078 &nvmet_aborts); 1079 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 1080 } 1081 1082 spin_unlock_irq(&phba->hbalock); 1083 1084 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 1085 psb->pCmd = NULL; 1086 psb->status = IOSTAT_SUCCESS; 1087 } 1088 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); 1089 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put); 1090 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); 1091 1092 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 1093 list_for_each_entry_safe(psb, psb_next, &nvme_aborts, list) { 1094 psb->pCmd = NULL; 1095 psb->status = IOSTAT_SUCCESS; 1096 } 1097 spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag); 1098 list_splice(&nvme_aborts, &phba->lpfc_nvme_buf_list_put); 1099 spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag); 1100 1101 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) { 1102 ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP); 1103 lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf); 1104 } 1105 } 1106 1107 lpfc_sli4_free_sp_events(phba); 1108 return 0; 1109 } 1110 1111 /** 1112 * lpfc_hba_down_post - Wrapper func for hba down post routine 1113 * @phba: pointer to lpfc HBA data structure. 1114 * 1115 * This routine wraps the actual SLI3 or SLI4 routine for performing 1116 * uninitialization after the HBA is reset when bring down the SLI Layer. 1117 * 1118 * Return codes 1119 * 0 - success. 1120 * Any other value - error. 1121 **/ 1122 int 1123 lpfc_hba_down_post(struct lpfc_hba *phba) 1124 { 1125 return (*phba->lpfc_hba_down_post)(phba); 1126 } 1127 1128 /** 1129 * lpfc_hb_timeout - The HBA-timer timeout handler 1130 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 1131 * 1132 * This is the HBA-timer timeout handler registered to the lpfc driver. When 1133 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 1134 * work-port-events bitmap and the worker thread is notified. This timeout 1135 * event will be used by the worker thread to invoke the actual timeout 1136 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 1137 * be performed in the timeout handler and the HBA timeout event bit shall 1138 * be cleared by the worker thread after it has taken the event bitmap out. 1139 **/ 1140 static void 1141 lpfc_hb_timeout(struct timer_list *t) 1142 { 1143 struct lpfc_hba *phba; 1144 uint32_t tmo_posted; 1145 unsigned long iflag; 1146 1147 phba = from_timer(phba, t, hb_tmofunc); 1148 1149 /* Check for heart beat timeout conditions */ 1150 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 1151 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 1152 if (!tmo_posted) 1153 phba->pport->work_port_events |= WORKER_HB_TMO; 1154 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 1155 1156 /* Tell the worker thread there is work to do */ 1157 if (!tmo_posted) 1158 lpfc_worker_wake_up(phba); 1159 return; 1160 } 1161 1162 /** 1163 * lpfc_rrq_timeout - The RRQ-timer timeout handler 1164 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 1165 * 1166 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 1167 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 1168 * work-port-events bitmap and the worker thread is notified. This timeout 1169 * event will be used by the worker thread to invoke the actual timeout 1170 * handler routine, lpfc_rrq_handler. Any periodical operations will 1171 * be performed in the timeout handler and the RRQ timeout event bit shall 1172 * be cleared by the worker thread after it has taken the event bitmap out. 1173 **/ 1174 static void 1175 lpfc_rrq_timeout(struct timer_list *t) 1176 { 1177 struct lpfc_hba *phba; 1178 unsigned long iflag; 1179 1180 phba = from_timer(phba, t, rrq_tmr); 1181 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 1182 if (!(phba->pport->load_flag & FC_UNLOADING)) 1183 phba->hba_flag |= HBA_RRQ_ACTIVE; 1184 else 1185 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 1186 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 1187 1188 if (!(phba->pport->load_flag & FC_UNLOADING)) 1189 lpfc_worker_wake_up(phba); 1190 } 1191 1192 /** 1193 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 1194 * @phba: pointer to lpfc hba data structure. 1195 * @pmboxq: pointer to the driver internal queue element for mailbox command. 1196 * 1197 * This is the callback function to the lpfc heart-beat mailbox command. 1198 * If configured, the lpfc driver issues the heart-beat mailbox command to 1199 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 1200 * heart-beat mailbox command is issued, the driver shall set up heart-beat 1201 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 1202 * heart-beat outstanding state. Once the mailbox command comes back and 1203 * no error conditions detected, the heart-beat mailbox command timer is 1204 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1205 * state is cleared for the next heart-beat. If the timer expired with the 1206 * heart-beat outstanding state set, the driver will put the HBA offline. 1207 **/ 1208 static void 1209 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1210 { 1211 unsigned long drvr_flag; 1212 1213 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1214 phba->hb_outstanding = 0; 1215 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1216 1217 /* Check and reset heart-beat timer is necessary */ 1218 mempool_free(pmboxq, phba->mbox_mem_pool); 1219 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1220 !(phba->link_state == LPFC_HBA_ERROR) && 1221 !(phba->pport->load_flag & FC_UNLOADING)) 1222 mod_timer(&phba->hb_tmofunc, 1223 jiffies + 1224 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1225 return; 1226 } 1227 1228 /** 1229 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1230 * @phba: pointer to lpfc hba data structure. 1231 * 1232 * This is the actual HBA-timer timeout handler to be invoked by the worker 1233 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1234 * handler performs any periodic operations needed for the device. If such 1235 * periodic event has already been attended to either in the interrupt handler 1236 * or by processing slow-ring or fast-ring events within the HBA-timer 1237 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1238 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1239 * is configured and there is no heart-beat mailbox command outstanding, a 1240 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1241 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1242 * to offline. 1243 **/ 1244 void 1245 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1246 { 1247 struct lpfc_vport **vports; 1248 LPFC_MBOXQ_t *pmboxq; 1249 struct lpfc_dmabuf *buf_ptr; 1250 int retval, i; 1251 struct lpfc_sli *psli = &phba->sli; 1252 LIST_HEAD(completions); 1253 struct lpfc_queue *qp; 1254 unsigned long time_elapsed; 1255 uint32_t tick_cqe, max_cqe, val; 1256 uint64_t tot, data1, data2, data3; 1257 struct lpfc_nvmet_tgtport *tgtp; 1258 struct lpfc_register reg_data; 1259 void __iomem *eqdreg = phba->sli4_hba.u.if_type2.EQDregaddr; 1260 1261 vports = lpfc_create_vport_work_array(phba); 1262 if (vports != NULL) 1263 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 1264 lpfc_rcv_seq_check_edtov(vports[i]); 1265 lpfc_fdmi_num_disc_check(vports[i]); 1266 } 1267 lpfc_destroy_vport_work_array(phba, vports); 1268 1269 if ((phba->link_state == LPFC_HBA_ERROR) || 1270 (phba->pport->load_flag & FC_UNLOADING) || 1271 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1272 return; 1273 1274 if (phba->cfg_auto_imax) { 1275 if (!phba->last_eqdelay_time) { 1276 phba->last_eqdelay_time = jiffies; 1277 goto skip_eqdelay; 1278 } 1279 time_elapsed = jiffies - phba->last_eqdelay_time; 1280 phba->last_eqdelay_time = jiffies; 1281 1282 tot = 0xffff; 1283 /* Check outstanding IO count */ 1284 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 1285 if (phba->nvmet_support) { 1286 tgtp = phba->targetport->private; 1287 /* Calculate outstanding IOs */ 1288 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 1289 tot += atomic_read(&tgtp->xmt_fcp_release); 1290 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 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, error = 0; 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 3076 /* Reestablish the local initiator port. 3077 * The offline process destroyed the previous lport. 3078 */ 3079 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 3080 !phba->nvmet_support) { 3081 error = lpfc_nvme_create_localport(phba->pport); 3082 if (error) 3083 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3084 "6132 NVME restore reg failed " 3085 "on nvmei error x%x\n", error); 3086 } 3087 } else { 3088 lpfc_sli_queue_init(phba); 3089 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 3090 lpfc_unblock_mgmt_io(phba); 3091 return 1; 3092 } 3093 } 3094 3095 vports = lpfc_create_vport_work_array(phba); 3096 if (vports != NULL) { 3097 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3098 struct Scsi_Host *shost; 3099 shost = lpfc_shost_from_vport(vports[i]); 3100 spin_lock_irq(shost->host_lock); 3101 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 3102 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 3103 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3104 if (phba->sli_rev == LPFC_SLI_REV4) { 3105 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 3106 if ((vpis_cleared) && 3107 (vports[i]->port_type != 3108 LPFC_PHYSICAL_PORT)) 3109 vports[i]->vpi = 0; 3110 } 3111 spin_unlock_irq(shost->host_lock); 3112 } 3113 } 3114 lpfc_destroy_vport_work_array(phba, vports); 3115 3116 lpfc_unblock_mgmt_io(phba); 3117 return 0; 3118 } 3119 3120 /** 3121 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 3122 * @phba: pointer to lpfc hba data structure. 3123 * 3124 * This routine marks a HBA's management interface as not blocked. Once the 3125 * HBA's management interface is marked as not blocked, all the user space 3126 * access to the HBA, whether they are from sysfs interface or libdfc 3127 * interface will be allowed. The HBA is set to block the management interface 3128 * when the driver prepares the HBA interface for online or offline and then 3129 * set to unblock the management interface afterwards. 3130 **/ 3131 void 3132 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 3133 { 3134 unsigned long iflag; 3135 3136 spin_lock_irqsave(&phba->hbalock, iflag); 3137 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 3138 spin_unlock_irqrestore(&phba->hbalock, iflag); 3139 } 3140 3141 /** 3142 * lpfc_offline_prep - Prepare a HBA to be brought offline 3143 * @phba: pointer to lpfc hba data structure. 3144 * 3145 * This routine is invoked to prepare a HBA to be brought offline. It performs 3146 * unregistration login to all the nodes on all vports and flushes the mailbox 3147 * queue to make it ready to be brought offline. 3148 **/ 3149 void 3150 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action) 3151 { 3152 struct lpfc_vport *vport = phba->pport; 3153 struct lpfc_nodelist *ndlp, *next_ndlp; 3154 struct lpfc_vport **vports; 3155 struct Scsi_Host *shost; 3156 int i; 3157 3158 if (vport->fc_flag & FC_OFFLINE_MODE) 3159 return; 3160 3161 lpfc_block_mgmt_io(phba, mbx_action); 3162 3163 lpfc_linkdown(phba); 3164 3165 /* Issue an unreg_login to all nodes on all vports */ 3166 vports = lpfc_create_vport_work_array(phba); 3167 if (vports != NULL) { 3168 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3169 if (vports[i]->load_flag & FC_UNLOADING) 3170 continue; 3171 shost = lpfc_shost_from_vport(vports[i]); 3172 spin_lock_irq(shost->host_lock); 3173 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 3174 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3175 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 3176 spin_unlock_irq(shost->host_lock); 3177 3178 shost = lpfc_shost_from_vport(vports[i]); 3179 list_for_each_entry_safe(ndlp, next_ndlp, 3180 &vports[i]->fc_nodes, 3181 nlp_listp) { 3182 if (!NLP_CHK_NODE_ACT(ndlp)) 3183 continue; 3184 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 3185 continue; 3186 if (ndlp->nlp_type & NLP_FABRIC) { 3187 lpfc_disc_state_machine(vports[i], ndlp, 3188 NULL, NLP_EVT_DEVICE_RECOVERY); 3189 lpfc_disc_state_machine(vports[i], ndlp, 3190 NULL, NLP_EVT_DEVICE_RM); 3191 } 3192 spin_lock_irq(shost->host_lock); 3193 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 3194 spin_unlock_irq(shost->host_lock); 3195 /* 3196 * Whenever an SLI4 port goes offline, free the 3197 * RPI. Get a new RPI when the adapter port 3198 * comes back online. 3199 */ 3200 if (phba->sli_rev == LPFC_SLI_REV4) { 3201 lpfc_printf_vlog(ndlp->vport, 3202 KERN_INFO, LOG_NODE, 3203 "0011 lpfc_offline: " 3204 "ndlp:x%p did %x " 3205 "usgmap:x%x rpi:%x\n", 3206 ndlp, ndlp->nlp_DID, 3207 ndlp->nlp_usg_map, 3208 ndlp->nlp_rpi); 3209 3210 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 3211 } 3212 lpfc_unreg_rpi(vports[i], ndlp); 3213 } 3214 } 3215 } 3216 lpfc_destroy_vport_work_array(phba, vports); 3217 3218 lpfc_sli_mbox_sys_shutdown(phba, mbx_action); 3219 } 3220 3221 /** 3222 * lpfc_offline - Bring a HBA offline 3223 * @phba: pointer to lpfc hba data structure. 3224 * 3225 * This routine actually brings a HBA offline. It stops all the timers 3226 * associated with the HBA, brings down the SLI layer, and eventually 3227 * marks the HBA as in offline state for the upper layer protocol. 3228 **/ 3229 void 3230 lpfc_offline(struct lpfc_hba *phba) 3231 { 3232 struct Scsi_Host *shost; 3233 struct lpfc_vport **vports; 3234 int i; 3235 3236 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 3237 return; 3238 3239 /* stop port and all timers associated with this hba */ 3240 lpfc_stop_port(phba); 3241 3242 /* Tear down the local and target port registrations. The 3243 * nvme transports need to cleanup. 3244 */ 3245 lpfc_nvmet_destroy_targetport(phba); 3246 lpfc_nvme_destroy_localport(phba->pport); 3247 3248 vports = lpfc_create_vport_work_array(phba); 3249 if (vports != NULL) 3250 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3251 lpfc_stop_vport_timers(vports[i]); 3252 lpfc_destroy_vport_work_array(phba, vports); 3253 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3254 "0460 Bring Adapter offline\n"); 3255 /* Bring down the SLI Layer and cleanup. The HBA is offline 3256 now. */ 3257 lpfc_sli_hba_down(phba); 3258 spin_lock_irq(&phba->hbalock); 3259 phba->work_ha = 0; 3260 spin_unlock_irq(&phba->hbalock); 3261 vports = lpfc_create_vport_work_array(phba); 3262 if (vports != NULL) 3263 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3264 shost = lpfc_shost_from_vport(vports[i]); 3265 spin_lock_irq(shost->host_lock); 3266 vports[i]->work_port_events = 0; 3267 vports[i]->fc_flag |= FC_OFFLINE_MODE; 3268 spin_unlock_irq(shost->host_lock); 3269 } 3270 lpfc_destroy_vport_work_array(phba, vports); 3271 } 3272 3273 /** 3274 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 3275 * @phba: pointer to lpfc hba data structure. 3276 * 3277 * This routine is to free all the SCSI buffers and IOCBs from the driver 3278 * list back to kernel. It is called from lpfc_pci_remove_one to free 3279 * the internal resources before the device is removed from the system. 3280 **/ 3281 static void 3282 lpfc_scsi_free(struct lpfc_hba *phba) 3283 { 3284 struct lpfc_scsi_buf *sb, *sb_next; 3285 3286 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 3287 return; 3288 3289 spin_lock_irq(&phba->hbalock); 3290 3291 /* Release all the lpfc_scsi_bufs maintained by this host. */ 3292 3293 spin_lock(&phba->scsi_buf_list_put_lock); 3294 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put, 3295 list) { 3296 list_del(&sb->list); 3297 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data, 3298 sb->dma_handle); 3299 kfree(sb); 3300 phba->total_scsi_bufs--; 3301 } 3302 spin_unlock(&phba->scsi_buf_list_put_lock); 3303 3304 spin_lock(&phba->scsi_buf_list_get_lock); 3305 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get, 3306 list) { 3307 list_del(&sb->list); 3308 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data, 3309 sb->dma_handle); 3310 kfree(sb); 3311 phba->total_scsi_bufs--; 3312 } 3313 spin_unlock(&phba->scsi_buf_list_get_lock); 3314 spin_unlock_irq(&phba->hbalock); 3315 } 3316 /** 3317 * lpfc_nvme_free - Free all the NVME buffers and IOCBs from driver lists 3318 * @phba: pointer to lpfc hba data structure. 3319 * 3320 * This routine is to free all the NVME buffers and IOCBs from the driver 3321 * list back to kernel. It is called from lpfc_pci_remove_one to free 3322 * the internal resources before the device is removed from the system. 3323 **/ 3324 static void 3325 lpfc_nvme_free(struct lpfc_hba *phba) 3326 { 3327 struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next; 3328 3329 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 3330 return; 3331 3332 spin_lock_irq(&phba->hbalock); 3333 3334 /* Release all the lpfc_nvme_bufs maintained by this host. */ 3335 spin_lock(&phba->nvme_buf_list_put_lock); 3336 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3337 &phba->lpfc_nvme_buf_list_put, list) { 3338 list_del(&lpfc_ncmd->list); 3339 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data, 3340 lpfc_ncmd->dma_handle); 3341 kfree(lpfc_ncmd); 3342 phba->total_nvme_bufs--; 3343 } 3344 spin_unlock(&phba->nvme_buf_list_put_lock); 3345 3346 spin_lock(&phba->nvme_buf_list_get_lock); 3347 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3348 &phba->lpfc_nvme_buf_list_get, list) { 3349 list_del(&lpfc_ncmd->list); 3350 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data, 3351 lpfc_ncmd->dma_handle); 3352 kfree(lpfc_ncmd); 3353 phba->total_nvme_bufs--; 3354 } 3355 spin_unlock(&phba->nvme_buf_list_get_lock); 3356 spin_unlock_irq(&phba->hbalock); 3357 } 3358 /** 3359 * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping 3360 * @phba: pointer to lpfc hba data structure. 3361 * 3362 * This routine first calculates the sizes of the current els and allocated 3363 * scsi sgl lists, and then goes through all sgls to updates the physical 3364 * XRIs assigned due to port function reset. During port initialization, the 3365 * current els and allocated scsi sgl lists are 0s. 3366 * 3367 * Return codes 3368 * 0 - successful (for now, it always returns 0) 3369 **/ 3370 int 3371 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba) 3372 { 3373 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 3374 uint16_t i, lxri, xri_cnt, els_xri_cnt; 3375 LIST_HEAD(els_sgl_list); 3376 int rc; 3377 3378 /* 3379 * update on pci function's els xri-sgl list 3380 */ 3381 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3382 3383 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { 3384 /* els xri-sgl expanded */ 3385 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; 3386 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3387 "3157 ELS xri-sgl count increased from " 3388 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3389 els_xri_cnt); 3390 /* allocate the additional els sgls */ 3391 for (i = 0; i < xri_cnt; i++) { 3392 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 3393 GFP_KERNEL); 3394 if (sglq_entry == NULL) { 3395 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3396 "2562 Failure to allocate an " 3397 "ELS sgl entry:%d\n", i); 3398 rc = -ENOMEM; 3399 goto out_free_mem; 3400 } 3401 sglq_entry->buff_type = GEN_BUFF_TYPE; 3402 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, 3403 &sglq_entry->phys); 3404 if (sglq_entry->virt == NULL) { 3405 kfree(sglq_entry); 3406 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3407 "2563 Failure to allocate an " 3408 "ELS mbuf:%d\n", i); 3409 rc = -ENOMEM; 3410 goto out_free_mem; 3411 } 3412 sglq_entry->sgl = sglq_entry->virt; 3413 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 3414 sglq_entry->state = SGL_FREED; 3415 list_add_tail(&sglq_entry->list, &els_sgl_list); 3416 } 3417 spin_lock_irq(&phba->hbalock); 3418 spin_lock(&phba->sli4_hba.sgl_list_lock); 3419 list_splice_init(&els_sgl_list, 3420 &phba->sli4_hba.lpfc_els_sgl_list); 3421 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3422 spin_unlock_irq(&phba->hbalock); 3423 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { 3424 /* els xri-sgl shrinked */ 3425 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; 3426 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3427 "3158 ELS xri-sgl count decreased from " 3428 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3429 els_xri_cnt); 3430 spin_lock_irq(&phba->hbalock); 3431 spin_lock(&phba->sli4_hba.sgl_list_lock); 3432 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, 3433 &els_sgl_list); 3434 /* release extra els sgls from list */ 3435 for (i = 0; i < xri_cnt; i++) { 3436 list_remove_head(&els_sgl_list, 3437 sglq_entry, struct lpfc_sglq, list); 3438 if (sglq_entry) { 3439 __lpfc_mbuf_free(phba, sglq_entry->virt, 3440 sglq_entry->phys); 3441 kfree(sglq_entry); 3442 } 3443 } 3444 list_splice_init(&els_sgl_list, 3445 &phba->sli4_hba.lpfc_els_sgl_list); 3446 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3447 spin_unlock_irq(&phba->hbalock); 3448 } else 3449 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3450 "3163 ELS xri-sgl count unchanged: %d\n", 3451 els_xri_cnt); 3452 phba->sli4_hba.els_xri_cnt = els_xri_cnt; 3453 3454 /* update xris to els sgls on the list */ 3455 sglq_entry = NULL; 3456 sglq_entry_next = NULL; 3457 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3458 &phba->sli4_hba.lpfc_els_sgl_list, list) { 3459 lxri = lpfc_sli4_next_xritag(phba); 3460 if (lxri == NO_XRI) { 3461 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3462 "2400 Failed to allocate xri for " 3463 "ELS sgl\n"); 3464 rc = -ENOMEM; 3465 goto out_free_mem; 3466 } 3467 sglq_entry->sli4_lxritag = lxri; 3468 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3469 } 3470 return 0; 3471 3472 out_free_mem: 3473 lpfc_free_els_sgl_list(phba); 3474 return rc; 3475 } 3476 3477 /** 3478 * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping 3479 * @phba: pointer to lpfc hba data structure. 3480 * 3481 * This routine first calculates the sizes of the current els and allocated 3482 * scsi sgl lists, and then goes through all sgls to updates the physical 3483 * XRIs assigned due to port function reset. During port initialization, the 3484 * current els and allocated scsi sgl lists are 0s. 3485 * 3486 * Return codes 3487 * 0 - successful (for now, it always returns 0) 3488 **/ 3489 int 3490 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba) 3491 { 3492 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 3493 uint16_t i, lxri, xri_cnt, els_xri_cnt; 3494 uint16_t nvmet_xri_cnt; 3495 LIST_HEAD(nvmet_sgl_list); 3496 int rc; 3497 3498 /* 3499 * update on pci function's nvmet xri-sgl list 3500 */ 3501 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3502 3503 /* For NVMET, ALL remaining XRIs are dedicated for IO processing */ 3504 nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3505 if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) { 3506 /* els xri-sgl expanded */ 3507 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt; 3508 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3509 "6302 NVMET xri-sgl cnt grew from %d to %d\n", 3510 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt); 3511 /* allocate the additional nvmet sgls */ 3512 for (i = 0; i < xri_cnt; i++) { 3513 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 3514 GFP_KERNEL); 3515 if (sglq_entry == NULL) { 3516 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3517 "6303 Failure to allocate an " 3518 "NVMET sgl entry:%d\n", i); 3519 rc = -ENOMEM; 3520 goto out_free_mem; 3521 } 3522 sglq_entry->buff_type = NVMET_BUFF_TYPE; 3523 sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0, 3524 &sglq_entry->phys); 3525 if (sglq_entry->virt == NULL) { 3526 kfree(sglq_entry); 3527 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3528 "6304 Failure to allocate an " 3529 "NVMET buf:%d\n", i); 3530 rc = -ENOMEM; 3531 goto out_free_mem; 3532 } 3533 sglq_entry->sgl = sglq_entry->virt; 3534 memset(sglq_entry->sgl, 0, 3535 phba->cfg_sg_dma_buf_size); 3536 sglq_entry->state = SGL_FREED; 3537 list_add_tail(&sglq_entry->list, &nvmet_sgl_list); 3538 } 3539 spin_lock_irq(&phba->hbalock); 3540 spin_lock(&phba->sli4_hba.sgl_list_lock); 3541 list_splice_init(&nvmet_sgl_list, 3542 &phba->sli4_hba.lpfc_nvmet_sgl_list); 3543 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3544 spin_unlock_irq(&phba->hbalock); 3545 } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) { 3546 /* nvmet xri-sgl shrunk */ 3547 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt; 3548 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3549 "6305 NVMET xri-sgl count decreased from " 3550 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt, 3551 nvmet_xri_cnt); 3552 spin_lock_irq(&phba->hbalock); 3553 spin_lock(&phba->sli4_hba.sgl_list_lock); 3554 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, 3555 &nvmet_sgl_list); 3556 /* release extra nvmet sgls from list */ 3557 for (i = 0; i < xri_cnt; i++) { 3558 list_remove_head(&nvmet_sgl_list, 3559 sglq_entry, struct lpfc_sglq, list); 3560 if (sglq_entry) { 3561 lpfc_nvmet_buf_free(phba, sglq_entry->virt, 3562 sglq_entry->phys); 3563 kfree(sglq_entry); 3564 } 3565 } 3566 list_splice_init(&nvmet_sgl_list, 3567 &phba->sli4_hba.lpfc_nvmet_sgl_list); 3568 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3569 spin_unlock_irq(&phba->hbalock); 3570 } else 3571 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3572 "6306 NVMET xri-sgl count unchanged: %d\n", 3573 nvmet_xri_cnt); 3574 phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt; 3575 3576 /* update xris to nvmet sgls on the list */ 3577 sglq_entry = NULL; 3578 sglq_entry_next = NULL; 3579 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3580 &phba->sli4_hba.lpfc_nvmet_sgl_list, list) { 3581 lxri = lpfc_sli4_next_xritag(phba); 3582 if (lxri == NO_XRI) { 3583 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3584 "6307 Failed to allocate xri for " 3585 "NVMET sgl\n"); 3586 rc = -ENOMEM; 3587 goto out_free_mem; 3588 } 3589 sglq_entry->sli4_lxritag = lxri; 3590 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3591 } 3592 return 0; 3593 3594 out_free_mem: 3595 lpfc_free_nvmet_sgl_list(phba); 3596 return rc; 3597 } 3598 3599 /** 3600 * lpfc_sli4_scsi_sgl_update - update xri-sgl sizing and mapping 3601 * @phba: pointer to lpfc hba data structure. 3602 * 3603 * This routine first calculates the sizes of the current els and allocated 3604 * scsi sgl lists, and then goes through all sgls to updates the physical 3605 * XRIs assigned due to port function reset. During port initialization, the 3606 * current els and allocated scsi sgl lists are 0s. 3607 * 3608 * Return codes 3609 * 0 - successful (for now, it always returns 0) 3610 **/ 3611 int 3612 lpfc_sli4_scsi_sgl_update(struct lpfc_hba *phba) 3613 { 3614 struct lpfc_scsi_buf *psb, *psb_next; 3615 uint16_t i, lxri, els_xri_cnt, scsi_xri_cnt; 3616 LIST_HEAD(scsi_sgl_list); 3617 int rc; 3618 3619 /* 3620 * update on pci function's els xri-sgl list 3621 */ 3622 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3623 phba->total_scsi_bufs = 0; 3624 3625 /* 3626 * update on pci function's allocated scsi xri-sgl list 3627 */ 3628 /* maximum number of xris available for scsi buffers */ 3629 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri - 3630 els_xri_cnt; 3631 3632 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 3633 return 0; 3634 3635 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 3636 phba->sli4_hba.scsi_xri_max = /* Split them up */ 3637 (phba->sli4_hba.scsi_xri_max * 3638 phba->cfg_xri_split) / 100; 3639 3640 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3641 spin_lock(&phba->scsi_buf_list_put_lock); 3642 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list); 3643 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list); 3644 spin_unlock(&phba->scsi_buf_list_put_lock); 3645 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3646 3647 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3648 "6060 Current allocated SCSI xri-sgl count:%d, " 3649 "maximum SCSI xri count:%d (split:%d)\n", 3650 phba->sli4_hba.scsi_xri_cnt, 3651 phba->sli4_hba.scsi_xri_max, phba->cfg_xri_split); 3652 3653 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) { 3654 /* max scsi xri shrinked below the allocated scsi buffers */ 3655 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt - 3656 phba->sli4_hba.scsi_xri_max; 3657 /* release the extra allocated scsi buffers */ 3658 for (i = 0; i < scsi_xri_cnt; i++) { 3659 list_remove_head(&scsi_sgl_list, psb, 3660 struct lpfc_scsi_buf, list); 3661 if (psb) { 3662 dma_pool_free(phba->lpfc_sg_dma_buf_pool, 3663 psb->data, psb->dma_handle); 3664 kfree(psb); 3665 } 3666 } 3667 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3668 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt; 3669 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3670 } 3671 3672 /* update xris associated to remaining allocated scsi buffers */ 3673 psb = NULL; 3674 psb_next = NULL; 3675 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) { 3676 lxri = lpfc_sli4_next_xritag(phba); 3677 if (lxri == NO_XRI) { 3678 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3679 "2560 Failed to allocate xri for " 3680 "scsi buffer\n"); 3681 rc = -ENOMEM; 3682 goto out_free_mem; 3683 } 3684 psb->cur_iocbq.sli4_lxritag = lxri; 3685 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3686 } 3687 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3688 spin_lock(&phba->scsi_buf_list_put_lock); 3689 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get); 3690 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 3691 spin_unlock(&phba->scsi_buf_list_put_lock); 3692 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3693 return 0; 3694 3695 out_free_mem: 3696 lpfc_scsi_free(phba); 3697 return rc; 3698 } 3699 3700 static uint64_t 3701 lpfc_get_wwpn(struct lpfc_hba *phba) 3702 { 3703 uint64_t wwn; 3704 int rc; 3705 LPFC_MBOXQ_t *mboxq; 3706 MAILBOX_t *mb; 3707 3708 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 3709 GFP_KERNEL); 3710 if (!mboxq) 3711 return (uint64_t)-1; 3712 3713 /* First get WWN of HBA instance */ 3714 lpfc_read_nv(phba, mboxq); 3715 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 3716 if (rc != MBX_SUCCESS) { 3717 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3718 "6019 Mailbox failed , mbxCmd x%x " 3719 "READ_NV, mbxStatus x%x\n", 3720 bf_get(lpfc_mqe_command, &mboxq->u.mqe), 3721 bf_get(lpfc_mqe_status, &mboxq->u.mqe)); 3722 mempool_free(mboxq, phba->mbox_mem_pool); 3723 return (uint64_t) -1; 3724 } 3725 mb = &mboxq->u.mb; 3726 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t)); 3727 /* wwn is WWPN of HBA instance */ 3728 mempool_free(mboxq, phba->mbox_mem_pool); 3729 if (phba->sli_rev == LPFC_SLI_REV4) 3730 return be64_to_cpu(wwn); 3731 else 3732 return rol64(wwn, 32); 3733 } 3734 3735 /** 3736 * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping 3737 * @phba: pointer to lpfc hba data structure. 3738 * 3739 * This routine first calculates the sizes of the current els and allocated 3740 * scsi sgl lists, and then goes through all sgls to updates the physical 3741 * XRIs assigned due to port function reset. During port initialization, the 3742 * current els and allocated scsi sgl lists are 0s. 3743 * 3744 * Return codes 3745 * 0 - successful (for now, it always returns 0) 3746 **/ 3747 int 3748 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba) 3749 { 3750 struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL; 3751 uint16_t i, lxri, els_xri_cnt; 3752 uint16_t nvme_xri_cnt, nvme_xri_max; 3753 LIST_HEAD(nvme_sgl_list); 3754 int rc; 3755 3756 phba->total_nvme_bufs = 0; 3757 3758 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 3759 return 0; 3760 /* 3761 * update on pci function's allocated nvme xri-sgl list 3762 */ 3763 3764 /* maximum number of xris available for nvme buffers */ 3765 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3766 nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3767 phba->sli4_hba.nvme_xri_max = nvme_xri_max; 3768 phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max; 3769 3770 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3771 "6074 Current allocated NVME xri-sgl count:%d, " 3772 "maximum NVME xri count:%d\n", 3773 phba->sli4_hba.nvme_xri_cnt, 3774 phba->sli4_hba.nvme_xri_max); 3775 3776 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3777 spin_lock(&phba->nvme_buf_list_put_lock); 3778 list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list); 3779 list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list); 3780 spin_unlock(&phba->nvme_buf_list_put_lock); 3781 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3782 3783 if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) { 3784 /* max nvme xri shrunk below the allocated nvme buffers */ 3785 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3786 nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt - 3787 phba->sli4_hba.nvme_xri_max; 3788 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3789 /* release the extra allocated nvme buffers */ 3790 for (i = 0; i < nvme_xri_cnt; i++) { 3791 list_remove_head(&nvme_sgl_list, lpfc_ncmd, 3792 struct lpfc_nvme_buf, list); 3793 if (lpfc_ncmd) { 3794 dma_pool_free(phba->lpfc_sg_dma_buf_pool, 3795 lpfc_ncmd->data, 3796 lpfc_ncmd->dma_handle); 3797 kfree(lpfc_ncmd); 3798 } 3799 } 3800 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3801 phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt; 3802 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3803 } 3804 3805 /* update xris associated to remaining allocated nvme buffers */ 3806 lpfc_ncmd = NULL; 3807 lpfc_ncmd_next = NULL; 3808 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3809 &nvme_sgl_list, list) { 3810 lxri = lpfc_sli4_next_xritag(phba); 3811 if (lxri == NO_XRI) { 3812 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3813 "6075 Failed to allocate xri for " 3814 "nvme buffer\n"); 3815 rc = -ENOMEM; 3816 goto out_free_mem; 3817 } 3818 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri; 3819 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3820 } 3821 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3822 spin_lock(&phba->nvme_buf_list_put_lock); 3823 list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get); 3824 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 3825 spin_unlock(&phba->nvme_buf_list_put_lock); 3826 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3827 return 0; 3828 3829 out_free_mem: 3830 lpfc_nvme_free(phba); 3831 return rc; 3832 } 3833 3834 /** 3835 * lpfc_create_port - Create an FC port 3836 * @phba: pointer to lpfc hba data structure. 3837 * @instance: a unique integer ID to this FC port. 3838 * @dev: pointer to the device data structure. 3839 * 3840 * This routine creates a FC port for the upper layer protocol. The FC port 3841 * can be created on top of either a physical port or a virtual port provided 3842 * by the HBA. This routine also allocates a SCSI host data structure (shost) 3843 * and associates the FC port created before adding the shost into the SCSI 3844 * layer. 3845 * 3846 * Return codes 3847 * @vport - pointer to the virtual N_Port data structure. 3848 * NULL - port create failed. 3849 **/ 3850 struct lpfc_vport * 3851 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 3852 { 3853 struct lpfc_vport *vport; 3854 struct Scsi_Host *shost = NULL; 3855 int error = 0; 3856 int i; 3857 uint64_t wwn; 3858 bool use_no_reset_hba = false; 3859 int rc; 3860 3861 if (lpfc_no_hba_reset_cnt) { 3862 if (phba->sli_rev < LPFC_SLI_REV4 && 3863 dev == &phba->pcidev->dev) { 3864 /* Reset the port first */ 3865 lpfc_sli_brdrestart(phba); 3866 rc = lpfc_sli_chipset_init(phba); 3867 if (rc) 3868 return NULL; 3869 } 3870 wwn = lpfc_get_wwpn(phba); 3871 } 3872 3873 for (i = 0; i < lpfc_no_hba_reset_cnt; i++) { 3874 if (wwn == lpfc_no_hba_reset[i]) { 3875 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3876 "6020 Setting use_no_reset port=%llx\n", 3877 wwn); 3878 use_no_reset_hba = true; 3879 break; 3880 } 3881 } 3882 3883 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 3884 if (dev != &phba->pcidev->dev) { 3885 shost = scsi_host_alloc(&lpfc_vport_template, 3886 sizeof(struct lpfc_vport)); 3887 } else { 3888 if (!use_no_reset_hba) 3889 shost = scsi_host_alloc(&lpfc_template, 3890 sizeof(struct lpfc_vport)); 3891 else 3892 shost = scsi_host_alloc(&lpfc_template_no_hr, 3893 sizeof(struct lpfc_vport)); 3894 } 3895 } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 3896 shost = scsi_host_alloc(&lpfc_template_nvme, 3897 sizeof(struct lpfc_vport)); 3898 } 3899 if (!shost) 3900 goto out; 3901 3902 vport = (struct lpfc_vport *) shost->hostdata; 3903 vport->phba = phba; 3904 vport->load_flag |= FC_LOADING; 3905 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3906 vport->fc_rscn_flush = 0; 3907 lpfc_get_vport_cfgparam(vport); 3908 3909 shost->unique_id = instance; 3910 shost->max_id = LPFC_MAX_TARGET; 3911 shost->max_lun = vport->cfg_max_luns; 3912 shost->this_id = -1; 3913 shost->max_cmd_len = 16; 3914 shost->nr_hw_queues = phba->cfg_fcp_io_channel; 3915 if (phba->sli_rev == LPFC_SLI_REV4) { 3916 shost->dma_boundary = 3917 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 3918 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 3919 } 3920 3921 /* 3922 * Set initial can_queue value since 0 is no longer supported and 3923 * scsi_add_host will fail. This will be adjusted later based on the 3924 * max xri value determined in hba setup. 3925 */ 3926 shost->can_queue = phba->cfg_hba_queue_depth - 10; 3927 if (dev != &phba->pcidev->dev) { 3928 shost->transportt = lpfc_vport_transport_template; 3929 vport->port_type = LPFC_NPIV_PORT; 3930 } else { 3931 shost->transportt = lpfc_transport_template; 3932 vport->port_type = LPFC_PHYSICAL_PORT; 3933 } 3934 3935 /* Initialize all internally managed lists. */ 3936 INIT_LIST_HEAD(&vport->fc_nodes); 3937 INIT_LIST_HEAD(&vport->rcv_buffer_list); 3938 spin_lock_init(&vport->work_port_lock); 3939 3940 timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0); 3941 3942 timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0); 3943 3944 timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0); 3945 3946 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 3947 if (error) 3948 goto out_put_shost; 3949 3950 spin_lock_irq(&phba->hbalock); 3951 list_add_tail(&vport->listentry, &phba->port_list); 3952 spin_unlock_irq(&phba->hbalock); 3953 return vport; 3954 3955 out_put_shost: 3956 scsi_host_put(shost); 3957 out: 3958 return NULL; 3959 } 3960 3961 /** 3962 * destroy_port - destroy an FC port 3963 * @vport: pointer to an lpfc virtual N_Port data structure. 3964 * 3965 * This routine destroys a FC port from the upper layer protocol. All the 3966 * resources associated with the port are released. 3967 **/ 3968 void 3969 destroy_port(struct lpfc_vport *vport) 3970 { 3971 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3972 struct lpfc_hba *phba = vport->phba; 3973 3974 lpfc_debugfs_terminate(vport); 3975 fc_remove_host(shost); 3976 scsi_remove_host(shost); 3977 3978 spin_lock_irq(&phba->hbalock); 3979 list_del_init(&vport->listentry); 3980 spin_unlock_irq(&phba->hbalock); 3981 3982 lpfc_cleanup(vport); 3983 return; 3984 } 3985 3986 /** 3987 * lpfc_get_instance - Get a unique integer ID 3988 * 3989 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 3990 * uses the kernel idr facility to perform the task. 3991 * 3992 * Return codes: 3993 * instance - a unique integer ID allocated as the new instance. 3994 * -1 - lpfc get instance failed. 3995 **/ 3996 int 3997 lpfc_get_instance(void) 3998 { 3999 int ret; 4000 4001 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL); 4002 return ret < 0 ? -1 : ret; 4003 } 4004 4005 /** 4006 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 4007 * @shost: pointer to SCSI host data structure. 4008 * @time: elapsed time of the scan in jiffies. 4009 * 4010 * This routine is called by the SCSI layer with a SCSI host to determine 4011 * whether the scan host is finished. 4012 * 4013 * Note: there is no scan_start function as adapter initialization will have 4014 * asynchronously kicked off the link initialization. 4015 * 4016 * Return codes 4017 * 0 - SCSI host scan is not over yet. 4018 * 1 - SCSI host scan is over. 4019 **/ 4020 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 4021 { 4022 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4023 struct lpfc_hba *phba = vport->phba; 4024 int stat = 0; 4025 4026 spin_lock_irq(shost->host_lock); 4027 4028 if (vport->load_flag & FC_UNLOADING) { 4029 stat = 1; 4030 goto finished; 4031 } 4032 if (time >= msecs_to_jiffies(30 * 1000)) { 4033 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4034 "0461 Scanning longer than 30 " 4035 "seconds. Continuing initialization\n"); 4036 stat = 1; 4037 goto finished; 4038 } 4039 if (time >= msecs_to_jiffies(15 * 1000) && 4040 phba->link_state <= LPFC_LINK_DOWN) { 4041 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4042 "0465 Link down longer than 15 " 4043 "seconds. Continuing initialization\n"); 4044 stat = 1; 4045 goto finished; 4046 } 4047 4048 if (vport->port_state != LPFC_VPORT_READY) 4049 goto finished; 4050 if (vport->num_disc_nodes || vport->fc_prli_sent) 4051 goto finished; 4052 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000)) 4053 goto finished; 4054 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 4055 goto finished; 4056 4057 stat = 1; 4058 4059 finished: 4060 spin_unlock_irq(shost->host_lock); 4061 return stat; 4062 } 4063 4064 /** 4065 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 4066 * @shost: pointer to SCSI host data structure. 4067 * 4068 * This routine initializes a given SCSI host attributes on a FC port. The 4069 * SCSI host can be either on top of a physical port or a virtual port. 4070 **/ 4071 void lpfc_host_attrib_init(struct Scsi_Host *shost) 4072 { 4073 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4074 struct lpfc_hba *phba = vport->phba; 4075 /* 4076 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 4077 */ 4078 4079 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 4080 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 4081 fc_host_supported_classes(shost) = FC_COS_CLASS3; 4082 4083 memset(fc_host_supported_fc4s(shost), 0, 4084 sizeof(fc_host_supported_fc4s(shost))); 4085 fc_host_supported_fc4s(shost)[2] = 1; 4086 fc_host_supported_fc4s(shost)[7] = 1; 4087 4088 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 4089 sizeof fc_host_symbolic_name(shost)); 4090 4091 fc_host_supported_speeds(shost) = 0; 4092 if (phba->lmt & LMT_32Gb) 4093 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT; 4094 if (phba->lmt & LMT_16Gb) 4095 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 4096 if (phba->lmt & LMT_10Gb) 4097 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 4098 if (phba->lmt & LMT_8Gb) 4099 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 4100 if (phba->lmt & LMT_4Gb) 4101 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 4102 if (phba->lmt & LMT_2Gb) 4103 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 4104 if (phba->lmt & LMT_1Gb) 4105 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 4106 4107 fc_host_maxframe_size(shost) = 4108 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 4109 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 4110 4111 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 4112 4113 /* This value is also unchanging */ 4114 memset(fc_host_active_fc4s(shost), 0, 4115 sizeof(fc_host_active_fc4s(shost))); 4116 fc_host_active_fc4s(shost)[2] = 1; 4117 fc_host_active_fc4s(shost)[7] = 1; 4118 4119 fc_host_max_npiv_vports(shost) = phba->max_vpi; 4120 spin_lock_irq(shost->host_lock); 4121 vport->load_flag &= ~FC_LOADING; 4122 spin_unlock_irq(shost->host_lock); 4123 } 4124 4125 /** 4126 * lpfc_stop_port_s3 - Stop SLI3 device port 4127 * @phba: pointer to lpfc hba data structure. 4128 * 4129 * This routine is invoked to stop an SLI3 device port, it stops the device 4130 * from generating interrupts and stops the device driver's timers for the 4131 * device. 4132 **/ 4133 static void 4134 lpfc_stop_port_s3(struct lpfc_hba *phba) 4135 { 4136 /* Clear all interrupt enable conditions */ 4137 writel(0, phba->HCregaddr); 4138 readl(phba->HCregaddr); /* flush */ 4139 /* Clear all pending interrupts */ 4140 writel(0xffffffff, phba->HAregaddr); 4141 readl(phba->HAregaddr); /* flush */ 4142 4143 /* Reset some HBA SLI setup states */ 4144 lpfc_stop_hba_timers(phba); 4145 phba->pport->work_port_events = 0; 4146 } 4147 4148 /** 4149 * lpfc_stop_port_s4 - Stop SLI4 device port 4150 * @phba: pointer to lpfc hba data structure. 4151 * 4152 * This routine is invoked to stop an SLI4 device port, it stops the device 4153 * from generating interrupts and stops the device driver's timers for the 4154 * device. 4155 **/ 4156 static void 4157 lpfc_stop_port_s4(struct lpfc_hba *phba) 4158 { 4159 /* Reset some HBA SLI4 setup states */ 4160 lpfc_stop_hba_timers(phba); 4161 phba->pport->work_port_events = 0; 4162 phba->sli4_hba.intr_enable = 0; 4163 } 4164 4165 /** 4166 * lpfc_stop_port - Wrapper function for stopping hba port 4167 * @phba: Pointer to HBA context object. 4168 * 4169 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 4170 * the API jump table function pointer from the lpfc_hba struct. 4171 **/ 4172 void 4173 lpfc_stop_port(struct lpfc_hba *phba) 4174 { 4175 phba->lpfc_stop_port(phba); 4176 } 4177 4178 /** 4179 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 4180 * @phba: Pointer to hba for which this call is being executed. 4181 * 4182 * This routine starts the timer waiting for the FCF rediscovery to complete. 4183 **/ 4184 void 4185 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 4186 { 4187 unsigned long fcf_redisc_wait_tmo = 4188 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 4189 /* Start fcf rediscovery wait period timer */ 4190 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 4191 spin_lock_irq(&phba->hbalock); 4192 /* Allow action to new fcf asynchronous event */ 4193 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 4194 /* Mark the FCF rediscovery pending state */ 4195 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 4196 spin_unlock_irq(&phba->hbalock); 4197 } 4198 4199 /** 4200 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 4201 * @ptr: Map to lpfc_hba data structure pointer. 4202 * 4203 * This routine is invoked when waiting for FCF table rediscover has been 4204 * timed out. If new FCF record(s) has (have) been discovered during the 4205 * wait period, a new FCF event shall be added to the FCOE async event 4206 * list, and then worker thread shall be waked up for processing from the 4207 * worker thread context. 4208 **/ 4209 static void 4210 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t) 4211 { 4212 struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait); 4213 4214 /* Don't send FCF rediscovery event if timer cancelled */ 4215 spin_lock_irq(&phba->hbalock); 4216 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 4217 spin_unlock_irq(&phba->hbalock); 4218 return; 4219 } 4220 /* Clear FCF rediscovery timer pending flag */ 4221 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 4222 /* FCF rediscovery event to worker thread */ 4223 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 4224 spin_unlock_irq(&phba->hbalock); 4225 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 4226 "2776 FCF rediscover quiescent timer expired\n"); 4227 /* wake up worker thread */ 4228 lpfc_worker_wake_up(phba); 4229 } 4230 4231 /** 4232 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 4233 * @phba: pointer to lpfc hba data structure. 4234 * @acqe_link: pointer to the async link completion queue entry. 4235 * 4236 * This routine is to parse the SLI4 link-attention link fault code and 4237 * translate it into the base driver's read link attention mailbox command 4238 * status. 4239 * 4240 * Return: Link-attention status in terms of base driver's coding. 4241 **/ 4242 static uint16_t 4243 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 4244 struct lpfc_acqe_link *acqe_link) 4245 { 4246 uint16_t latt_fault; 4247 4248 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 4249 case LPFC_ASYNC_LINK_FAULT_NONE: 4250 case LPFC_ASYNC_LINK_FAULT_LOCAL: 4251 case LPFC_ASYNC_LINK_FAULT_REMOTE: 4252 latt_fault = 0; 4253 break; 4254 default: 4255 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4256 "0398 Invalid link fault code: x%x\n", 4257 bf_get(lpfc_acqe_link_fault, acqe_link)); 4258 latt_fault = MBXERR_ERROR; 4259 break; 4260 } 4261 return latt_fault; 4262 } 4263 4264 /** 4265 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 4266 * @phba: pointer to lpfc hba data structure. 4267 * @acqe_link: pointer to the async link completion queue entry. 4268 * 4269 * This routine is to parse the SLI4 link attention type and translate it 4270 * into the base driver's link attention type coding. 4271 * 4272 * Return: Link attention type in terms of base driver's coding. 4273 **/ 4274 static uint8_t 4275 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 4276 struct lpfc_acqe_link *acqe_link) 4277 { 4278 uint8_t att_type; 4279 4280 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 4281 case LPFC_ASYNC_LINK_STATUS_DOWN: 4282 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 4283 att_type = LPFC_ATT_LINK_DOWN; 4284 break; 4285 case LPFC_ASYNC_LINK_STATUS_UP: 4286 /* Ignore physical link up events - wait for logical link up */ 4287 att_type = LPFC_ATT_RESERVED; 4288 break; 4289 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 4290 att_type = LPFC_ATT_LINK_UP; 4291 break; 4292 default: 4293 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4294 "0399 Invalid link attention type: x%x\n", 4295 bf_get(lpfc_acqe_link_status, acqe_link)); 4296 att_type = LPFC_ATT_RESERVED; 4297 break; 4298 } 4299 return att_type; 4300 } 4301 4302 /** 4303 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed 4304 * @phba: pointer to lpfc hba data structure. 4305 * 4306 * This routine is to get an SLI3 FC port's link speed in Mbps. 4307 * 4308 * Return: link speed in terms of Mbps. 4309 **/ 4310 uint32_t 4311 lpfc_sli_port_speed_get(struct lpfc_hba *phba) 4312 { 4313 uint32_t link_speed; 4314 4315 if (!lpfc_is_link_up(phba)) 4316 return 0; 4317 4318 if (phba->sli_rev <= LPFC_SLI_REV3) { 4319 switch (phba->fc_linkspeed) { 4320 case LPFC_LINK_SPEED_1GHZ: 4321 link_speed = 1000; 4322 break; 4323 case LPFC_LINK_SPEED_2GHZ: 4324 link_speed = 2000; 4325 break; 4326 case LPFC_LINK_SPEED_4GHZ: 4327 link_speed = 4000; 4328 break; 4329 case LPFC_LINK_SPEED_8GHZ: 4330 link_speed = 8000; 4331 break; 4332 case LPFC_LINK_SPEED_10GHZ: 4333 link_speed = 10000; 4334 break; 4335 case LPFC_LINK_SPEED_16GHZ: 4336 link_speed = 16000; 4337 break; 4338 default: 4339 link_speed = 0; 4340 } 4341 } else { 4342 if (phba->sli4_hba.link_state.logical_speed) 4343 link_speed = 4344 phba->sli4_hba.link_state.logical_speed; 4345 else 4346 link_speed = phba->sli4_hba.link_state.speed; 4347 } 4348 return link_speed; 4349 } 4350 4351 /** 4352 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed 4353 * @phba: pointer to lpfc hba data structure. 4354 * @evt_code: asynchronous event code. 4355 * @speed_code: asynchronous event link speed code. 4356 * 4357 * This routine is to parse the giving SLI4 async event link speed code into 4358 * value of Mbps for the link speed. 4359 * 4360 * Return: link speed in terms of Mbps. 4361 **/ 4362 static uint32_t 4363 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code, 4364 uint8_t speed_code) 4365 { 4366 uint32_t port_speed; 4367 4368 switch (evt_code) { 4369 case LPFC_TRAILER_CODE_LINK: 4370 switch (speed_code) { 4371 case LPFC_ASYNC_LINK_SPEED_ZERO: 4372 port_speed = 0; 4373 break; 4374 case LPFC_ASYNC_LINK_SPEED_10MBPS: 4375 port_speed = 10; 4376 break; 4377 case LPFC_ASYNC_LINK_SPEED_100MBPS: 4378 port_speed = 100; 4379 break; 4380 case LPFC_ASYNC_LINK_SPEED_1GBPS: 4381 port_speed = 1000; 4382 break; 4383 case LPFC_ASYNC_LINK_SPEED_10GBPS: 4384 port_speed = 10000; 4385 break; 4386 case LPFC_ASYNC_LINK_SPEED_20GBPS: 4387 port_speed = 20000; 4388 break; 4389 case LPFC_ASYNC_LINK_SPEED_25GBPS: 4390 port_speed = 25000; 4391 break; 4392 case LPFC_ASYNC_LINK_SPEED_40GBPS: 4393 port_speed = 40000; 4394 break; 4395 default: 4396 port_speed = 0; 4397 } 4398 break; 4399 case LPFC_TRAILER_CODE_FC: 4400 switch (speed_code) { 4401 case LPFC_FC_LA_SPEED_UNKNOWN: 4402 port_speed = 0; 4403 break; 4404 case LPFC_FC_LA_SPEED_1G: 4405 port_speed = 1000; 4406 break; 4407 case LPFC_FC_LA_SPEED_2G: 4408 port_speed = 2000; 4409 break; 4410 case LPFC_FC_LA_SPEED_4G: 4411 port_speed = 4000; 4412 break; 4413 case LPFC_FC_LA_SPEED_8G: 4414 port_speed = 8000; 4415 break; 4416 case LPFC_FC_LA_SPEED_10G: 4417 port_speed = 10000; 4418 break; 4419 case LPFC_FC_LA_SPEED_16G: 4420 port_speed = 16000; 4421 break; 4422 case LPFC_FC_LA_SPEED_32G: 4423 port_speed = 32000; 4424 break; 4425 default: 4426 port_speed = 0; 4427 } 4428 break; 4429 default: 4430 port_speed = 0; 4431 } 4432 return port_speed; 4433 } 4434 4435 /** 4436 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 4437 * @phba: pointer to lpfc hba data structure. 4438 * @acqe_link: pointer to the async link completion queue entry. 4439 * 4440 * This routine is to handle the SLI4 asynchronous FCoE link event. 4441 **/ 4442 static void 4443 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 4444 struct lpfc_acqe_link *acqe_link) 4445 { 4446 struct lpfc_dmabuf *mp; 4447 LPFC_MBOXQ_t *pmb; 4448 MAILBOX_t *mb; 4449 struct lpfc_mbx_read_top *la; 4450 uint8_t att_type; 4451 int rc; 4452 4453 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 4454 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 4455 return; 4456 phba->fcoe_eventtag = acqe_link->event_tag; 4457 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4458 if (!pmb) { 4459 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4460 "0395 The mboxq allocation failed\n"); 4461 return; 4462 } 4463 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4464 if (!mp) { 4465 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4466 "0396 The lpfc_dmabuf allocation failed\n"); 4467 goto out_free_pmb; 4468 } 4469 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4470 if (!mp->virt) { 4471 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4472 "0397 The mbuf allocation failed\n"); 4473 goto out_free_dmabuf; 4474 } 4475 4476 /* Cleanup any outstanding ELS commands */ 4477 lpfc_els_flush_all_cmd(phba); 4478 4479 /* Block ELS IOCBs until we have done process link event */ 4480 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4481 4482 /* Update link event statistics */ 4483 phba->sli.slistat.link_event++; 4484 4485 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4486 lpfc_read_topology(phba, pmb, mp); 4487 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4488 pmb->vport = phba->pport; 4489 4490 /* Keep the link status for extra SLI4 state machine reference */ 4491 phba->sli4_hba.link_state.speed = 4492 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK, 4493 bf_get(lpfc_acqe_link_speed, acqe_link)); 4494 phba->sli4_hba.link_state.duplex = 4495 bf_get(lpfc_acqe_link_duplex, acqe_link); 4496 phba->sli4_hba.link_state.status = 4497 bf_get(lpfc_acqe_link_status, acqe_link); 4498 phba->sli4_hba.link_state.type = 4499 bf_get(lpfc_acqe_link_type, acqe_link); 4500 phba->sli4_hba.link_state.number = 4501 bf_get(lpfc_acqe_link_number, acqe_link); 4502 phba->sli4_hba.link_state.fault = 4503 bf_get(lpfc_acqe_link_fault, acqe_link); 4504 phba->sli4_hba.link_state.logical_speed = 4505 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10; 4506 4507 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4508 "2900 Async FC/FCoE Link event - Speed:%dGBit " 4509 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 4510 "Logical speed:%dMbps Fault:%d\n", 4511 phba->sli4_hba.link_state.speed, 4512 phba->sli4_hba.link_state.topology, 4513 phba->sli4_hba.link_state.status, 4514 phba->sli4_hba.link_state.type, 4515 phba->sli4_hba.link_state.number, 4516 phba->sli4_hba.link_state.logical_speed, 4517 phba->sli4_hba.link_state.fault); 4518 /* 4519 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 4520 * topology info. Note: Optional for non FC-AL ports. 4521 */ 4522 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 4523 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4524 if (rc == MBX_NOT_FINISHED) 4525 goto out_free_dmabuf; 4526 return; 4527 } 4528 /* 4529 * For FCoE Mode: fill in all the topology information we need and call 4530 * the READ_TOPOLOGY completion routine to continue without actually 4531 * sending the READ_TOPOLOGY mailbox command to the port. 4532 */ 4533 /* Parse and translate status field */ 4534 mb = &pmb->u.mb; 4535 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 4536 4537 /* Parse and translate link attention fields */ 4538 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 4539 la->eventTag = acqe_link->event_tag; 4540 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 4541 bf_set(lpfc_mbx_read_top_link_spd, la, 4542 (bf_get(lpfc_acqe_link_speed, acqe_link))); 4543 4544 /* Fake the the following irrelvant fields */ 4545 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 4546 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 4547 bf_set(lpfc_mbx_read_top_il, la, 0); 4548 bf_set(lpfc_mbx_read_top_pb, la, 0); 4549 bf_set(lpfc_mbx_read_top_fa, la, 0); 4550 bf_set(lpfc_mbx_read_top_mm, la, 0); 4551 4552 /* Invoke the lpfc_handle_latt mailbox command callback function */ 4553 lpfc_mbx_cmpl_read_topology(phba, pmb); 4554 4555 return; 4556 4557 out_free_dmabuf: 4558 kfree(mp); 4559 out_free_pmb: 4560 mempool_free(pmb, phba->mbox_mem_pool); 4561 } 4562 4563 /** 4564 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 4565 * @phba: pointer to lpfc hba data structure. 4566 * @acqe_fc: pointer to the async fc completion queue entry. 4567 * 4568 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 4569 * that the event was received and then issue a read_topology mailbox command so 4570 * that the rest of the driver will treat it the same as SLI3. 4571 **/ 4572 static void 4573 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 4574 { 4575 struct lpfc_dmabuf *mp; 4576 LPFC_MBOXQ_t *pmb; 4577 MAILBOX_t *mb; 4578 struct lpfc_mbx_read_top *la; 4579 int rc; 4580 4581 if (bf_get(lpfc_trailer_type, acqe_fc) != 4582 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 4583 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4584 "2895 Non FC link Event detected.(%d)\n", 4585 bf_get(lpfc_trailer_type, acqe_fc)); 4586 return; 4587 } 4588 /* Keep the link status for extra SLI4 state machine reference */ 4589 phba->sli4_hba.link_state.speed = 4590 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, 4591 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 4592 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 4593 phba->sli4_hba.link_state.topology = 4594 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 4595 phba->sli4_hba.link_state.status = 4596 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 4597 phba->sli4_hba.link_state.type = 4598 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 4599 phba->sli4_hba.link_state.number = 4600 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 4601 phba->sli4_hba.link_state.fault = 4602 bf_get(lpfc_acqe_link_fault, acqe_fc); 4603 phba->sli4_hba.link_state.logical_speed = 4604 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; 4605 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4606 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 4607 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 4608 "%dMbps Fault:%d\n", 4609 phba->sli4_hba.link_state.speed, 4610 phba->sli4_hba.link_state.topology, 4611 phba->sli4_hba.link_state.status, 4612 phba->sli4_hba.link_state.type, 4613 phba->sli4_hba.link_state.number, 4614 phba->sli4_hba.link_state.logical_speed, 4615 phba->sli4_hba.link_state.fault); 4616 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4617 if (!pmb) { 4618 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4619 "2897 The mboxq allocation failed\n"); 4620 return; 4621 } 4622 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4623 if (!mp) { 4624 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4625 "2898 The lpfc_dmabuf allocation failed\n"); 4626 goto out_free_pmb; 4627 } 4628 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4629 if (!mp->virt) { 4630 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4631 "2899 The mbuf allocation failed\n"); 4632 goto out_free_dmabuf; 4633 } 4634 4635 /* Cleanup any outstanding ELS commands */ 4636 lpfc_els_flush_all_cmd(phba); 4637 4638 /* Block ELS IOCBs until we have done process link event */ 4639 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4640 4641 /* Update link event statistics */ 4642 phba->sli.slistat.link_event++; 4643 4644 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4645 lpfc_read_topology(phba, pmb, mp); 4646 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4647 pmb->vport = phba->pport; 4648 4649 if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) { 4650 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK); 4651 4652 switch (phba->sli4_hba.link_state.status) { 4653 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN: 4654 phba->link_flag |= LS_MDS_LINK_DOWN; 4655 break; 4656 case LPFC_FC_LA_TYPE_MDS_LOOPBACK: 4657 phba->link_flag |= LS_MDS_LOOPBACK; 4658 break; 4659 default: 4660 break; 4661 } 4662 4663 /* Parse and translate status field */ 4664 mb = &pmb->u.mb; 4665 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, 4666 (void *)acqe_fc); 4667 4668 /* Parse and translate link attention fields */ 4669 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop; 4670 la->eventTag = acqe_fc->event_tag; 4671 4672 if (phba->sli4_hba.link_state.status == 4673 LPFC_FC_LA_TYPE_UNEXP_WWPN) { 4674 bf_set(lpfc_mbx_read_top_att_type, la, 4675 LPFC_FC_LA_TYPE_UNEXP_WWPN); 4676 } else { 4677 bf_set(lpfc_mbx_read_top_att_type, la, 4678 LPFC_FC_LA_TYPE_LINK_DOWN); 4679 } 4680 /* Invoke the mailbox command callback function */ 4681 lpfc_mbx_cmpl_read_topology(phba, pmb); 4682 4683 return; 4684 } 4685 4686 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4687 if (rc == MBX_NOT_FINISHED) 4688 goto out_free_dmabuf; 4689 return; 4690 4691 out_free_dmabuf: 4692 kfree(mp); 4693 out_free_pmb: 4694 mempool_free(pmb, phba->mbox_mem_pool); 4695 } 4696 4697 /** 4698 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 4699 * @phba: pointer to lpfc hba data structure. 4700 * @acqe_fc: pointer to the async SLI completion queue entry. 4701 * 4702 * This routine is to handle the SLI4 asynchronous SLI events. 4703 **/ 4704 static void 4705 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 4706 { 4707 char port_name; 4708 char message[128]; 4709 uint8_t status; 4710 uint8_t evt_type; 4711 uint8_t operational = 0; 4712 struct temp_event temp_event_data; 4713 struct lpfc_acqe_misconfigured_event *misconfigured; 4714 struct Scsi_Host *shost; 4715 4716 evt_type = bf_get(lpfc_trailer_type, acqe_sli); 4717 4718 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4719 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 4720 "x%08x SLI Event Type:%d\n", 4721 acqe_sli->event_data1, acqe_sli->event_data2, 4722 evt_type); 4723 4724 port_name = phba->Port[0]; 4725 if (port_name == 0x00) 4726 port_name = '?'; /* get port name is empty */ 4727 4728 switch (evt_type) { 4729 case LPFC_SLI_EVENT_TYPE_OVER_TEMP: 4730 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4731 temp_event_data.event_code = LPFC_THRESHOLD_TEMP; 4732 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4733 4734 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 4735 "3190 Over Temperature:%d Celsius- Port Name %c\n", 4736 acqe_sli->event_data1, port_name); 4737 4738 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; 4739 shost = lpfc_shost_from_vport(phba->pport); 4740 fc_host_post_vendor_event(shost, fc_get_event_number(), 4741 sizeof(temp_event_data), 4742 (char *)&temp_event_data, 4743 SCSI_NL_VID_TYPE_PCI 4744 | PCI_VENDOR_ID_EMULEX); 4745 break; 4746 case LPFC_SLI_EVENT_TYPE_NORM_TEMP: 4747 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4748 temp_event_data.event_code = LPFC_NORMAL_TEMP; 4749 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4750 4751 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4752 "3191 Normal Temperature:%d Celsius - Port Name %c\n", 4753 acqe_sli->event_data1, port_name); 4754 4755 shost = lpfc_shost_from_vport(phba->pport); 4756 fc_host_post_vendor_event(shost, fc_get_event_number(), 4757 sizeof(temp_event_data), 4758 (char *)&temp_event_data, 4759 SCSI_NL_VID_TYPE_PCI 4760 | PCI_VENDOR_ID_EMULEX); 4761 break; 4762 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED: 4763 misconfigured = (struct lpfc_acqe_misconfigured_event *) 4764 &acqe_sli->event_data1; 4765 4766 /* fetch the status for this port */ 4767 switch (phba->sli4_hba.lnk_info.lnk_no) { 4768 case LPFC_LINK_NUMBER_0: 4769 status = bf_get(lpfc_sli_misconfigured_port0_state, 4770 &misconfigured->theEvent); 4771 operational = bf_get(lpfc_sli_misconfigured_port0_op, 4772 &misconfigured->theEvent); 4773 break; 4774 case LPFC_LINK_NUMBER_1: 4775 status = bf_get(lpfc_sli_misconfigured_port1_state, 4776 &misconfigured->theEvent); 4777 operational = bf_get(lpfc_sli_misconfigured_port1_op, 4778 &misconfigured->theEvent); 4779 break; 4780 case LPFC_LINK_NUMBER_2: 4781 status = bf_get(lpfc_sli_misconfigured_port2_state, 4782 &misconfigured->theEvent); 4783 operational = bf_get(lpfc_sli_misconfigured_port2_op, 4784 &misconfigured->theEvent); 4785 break; 4786 case LPFC_LINK_NUMBER_3: 4787 status = bf_get(lpfc_sli_misconfigured_port3_state, 4788 &misconfigured->theEvent); 4789 operational = bf_get(lpfc_sli_misconfigured_port3_op, 4790 &misconfigured->theEvent); 4791 break; 4792 default: 4793 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4794 "3296 " 4795 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED " 4796 "event: Invalid link %d", 4797 phba->sli4_hba.lnk_info.lnk_no); 4798 return; 4799 } 4800 4801 /* Skip if optic state unchanged */ 4802 if (phba->sli4_hba.lnk_info.optic_state == status) 4803 return; 4804 4805 switch (status) { 4806 case LPFC_SLI_EVENT_STATUS_VALID: 4807 sprintf(message, "Physical Link is functional"); 4808 break; 4809 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: 4810 sprintf(message, "Optics faulted/incorrectly " 4811 "installed/not installed - Reseat optics, " 4812 "if issue not resolved, replace."); 4813 break; 4814 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: 4815 sprintf(message, 4816 "Optics of two types installed - Remove one " 4817 "optic or install matching pair of optics."); 4818 break; 4819 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: 4820 sprintf(message, "Incompatible optics - Replace with " 4821 "compatible optics for card to function."); 4822 break; 4823 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED: 4824 sprintf(message, "Unqualified optics - Replace with " 4825 "Avago optics for Warranty and Technical " 4826 "Support - Link is%s operational", 4827 (operational) ? " not" : ""); 4828 break; 4829 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED: 4830 sprintf(message, "Uncertified optics - Replace with " 4831 "Avago-certified optics to enable link " 4832 "operation - Link is%s operational", 4833 (operational) ? " not" : ""); 4834 break; 4835 default: 4836 /* firmware is reporting a status we don't know about */ 4837 sprintf(message, "Unknown event status x%02x", status); 4838 break; 4839 } 4840 phba->sli4_hba.lnk_info.optic_state = status; 4841 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4842 "3176 Port Name %c %s\n", port_name, message); 4843 break; 4844 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT: 4845 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4846 "3192 Remote DPort Test Initiated - " 4847 "Event Data1:x%08x Event Data2: x%08x\n", 4848 acqe_sli->event_data1, acqe_sli->event_data2); 4849 break; 4850 default: 4851 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4852 "3193 Async SLI event - Event Data1:x%08x Event Data2:" 4853 "x%08x SLI Event Type:%d\n", 4854 acqe_sli->event_data1, acqe_sli->event_data2, 4855 evt_type); 4856 break; 4857 } 4858 } 4859 4860 /** 4861 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 4862 * @vport: pointer to vport data structure. 4863 * 4864 * This routine is to perform Clear Virtual Link (CVL) on a vport in 4865 * response to a CVL event. 4866 * 4867 * Return the pointer to the ndlp with the vport if successful, otherwise 4868 * return NULL. 4869 **/ 4870 static struct lpfc_nodelist * 4871 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 4872 { 4873 struct lpfc_nodelist *ndlp; 4874 struct Scsi_Host *shost; 4875 struct lpfc_hba *phba; 4876 4877 if (!vport) 4878 return NULL; 4879 phba = vport->phba; 4880 if (!phba) 4881 return NULL; 4882 ndlp = lpfc_findnode_did(vport, Fabric_DID); 4883 if (!ndlp) { 4884 /* Cannot find existing Fabric ndlp, so allocate a new one */ 4885 ndlp = lpfc_nlp_init(vport, Fabric_DID); 4886 if (!ndlp) 4887 return 0; 4888 /* Set the node type */ 4889 ndlp->nlp_type |= NLP_FABRIC; 4890 /* Put ndlp onto node list */ 4891 lpfc_enqueue_node(vport, ndlp); 4892 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 4893 /* re-setup ndlp without removing from node list */ 4894 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 4895 if (!ndlp) 4896 return 0; 4897 } 4898 if ((phba->pport->port_state < LPFC_FLOGI) && 4899 (phba->pport->port_state != LPFC_VPORT_FAILED)) 4900 return NULL; 4901 /* If virtual link is not yet instantiated ignore CVL */ 4902 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 4903 && (vport->port_state != LPFC_VPORT_FAILED)) 4904 return NULL; 4905 shost = lpfc_shost_from_vport(vport); 4906 if (!shost) 4907 return NULL; 4908 lpfc_linkdown_port(vport); 4909 lpfc_cleanup_pending_mbox(vport); 4910 spin_lock_irq(shost->host_lock); 4911 vport->fc_flag |= FC_VPORT_CVL_RCVD; 4912 spin_unlock_irq(shost->host_lock); 4913 4914 return ndlp; 4915 } 4916 4917 /** 4918 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 4919 * @vport: pointer to lpfc hba data structure. 4920 * 4921 * This routine is to perform Clear Virtual Link (CVL) on all vports in 4922 * response to a FCF dead event. 4923 **/ 4924 static void 4925 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 4926 { 4927 struct lpfc_vport **vports; 4928 int i; 4929 4930 vports = lpfc_create_vport_work_array(phba); 4931 if (vports) 4932 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 4933 lpfc_sli4_perform_vport_cvl(vports[i]); 4934 lpfc_destroy_vport_work_array(phba, vports); 4935 } 4936 4937 /** 4938 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 4939 * @phba: pointer to lpfc hba data structure. 4940 * @acqe_link: pointer to the async fcoe completion queue entry. 4941 * 4942 * This routine is to handle the SLI4 asynchronous fcoe event. 4943 **/ 4944 static void 4945 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 4946 struct lpfc_acqe_fip *acqe_fip) 4947 { 4948 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 4949 int rc; 4950 struct lpfc_vport *vport; 4951 struct lpfc_nodelist *ndlp; 4952 struct Scsi_Host *shost; 4953 int active_vlink_present; 4954 struct lpfc_vport **vports; 4955 int i; 4956 4957 phba->fc_eventTag = acqe_fip->event_tag; 4958 phba->fcoe_eventtag = acqe_fip->event_tag; 4959 switch (event_type) { 4960 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 4961 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 4962 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 4963 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4964 LOG_DISCOVERY, 4965 "2546 New FCF event, evt_tag:x%x, " 4966 "index:x%x\n", 4967 acqe_fip->event_tag, 4968 acqe_fip->index); 4969 else 4970 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 4971 LOG_DISCOVERY, 4972 "2788 FCF param modified event, " 4973 "evt_tag:x%x, index:x%x\n", 4974 acqe_fip->event_tag, 4975 acqe_fip->index); 4976 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4977 /* 4978 * During period of FCF discovery, read the FCF 4979 * table record indexed by the event to update 4980 * FCF roundrobin failover eligible FCF bmask. 4981 */ 4982 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4983 LOG_DISCOVERY, 4984 "2779 Read FCF (x%x) for updating " 4985 "roundrobin FCF failover bmask\n", 4986 acqe_fip->index); 4987 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 4988 } 4989 4990 /* If the FCF discovery is in progress, do nothing. */ 4991 spin_lock_irq(&phba->hbalock); 4992 if (phba->hba_flag & FCF_TS_INPROG) { 4993 spin_unlock_irq(&phba->hbalock); 4994 break; 4995 } 4996 /* If fast FCF failover rescan event is pending, do nothing */ 4997 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 4998 spin_unlock_irq(&phba->hbalock); 4999 break; 5000 } 5001 5002 /* If the FCF has been in discovered state, do nothing. */ 5003 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 5004 spin_unlock_irq(&phba->hbalock); 5005 break; 5006 } 5007 spin_unlock_irq(&phba->hbalock); 5008 5009 /* Otherwise, scan the entire FCF table and re-discover SAN */ 5010 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5011 "2770 Start FCF table scan per async FCF " 5012 "event, evt_tag:x%x, index:x%x\n", 5013 acqe_fip->event_tag, acqe_fip->index); 5014 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 5015 LPFC_FCOE_FCF_GET_FIRST); 5016 if (rc) 5017 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5018 "2547 Issue FCF scan read FCF mailbox " 5019 "command failed (x%x)\n", rc); 5020 break; 5021 5022 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 5023 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5024 "2548 FCF Table full count 0x%x tag 0x%x\n", 5025 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 5026 acqe_fip->event_tag); 5027 break; 5028 5029 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 5030 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 5031 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5032 "2549 FCF (x%x) disconnected from network, " 5033 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 5034 /* 5035 * If we are in the middle of FCF failover process, clear 5036 * the corresponding FCF bit in the roundrobin bitmap. 5037 */ 5038 spin_lock_irq(&phba->hbalock); 5039 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) && 5040 (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) { 5041 spin_unlock_irq(&phba->hbalock); 5042 /* Update FLOGI FCF failover eligible FCF bmask */ 5043 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 5044 break; 5045 } 5046 spin_unlock_irq(&phba->hbalock); 5047 5048 /* If the event is not for currently used fcf do nothing */ 5049 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 5050 break; 5051 5052 /* 5053 * Otherwise, request the port to rediscover the entire FCF 5054 * table for a fast recovery from case that the current FCF 5055 * is no longer valid as we are not in the middle of FCF 5056 * failover process already. 5057 */ 5058 spin_lock_irq(&phba->hbalock); 5059 /* Mark the fast failover process in progress */ 5060 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 5061 spin_unlock_irq(&phba->hbalock); 5062 5063 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5064 "2771 Start FCF fast failover process due to " 5065 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 5066 "\n", acqe_fip->event_tag, acqe_fip->index); 5067 rc = lpfc_sli4_redisc_fcf_table(phba); 5068 if (rc) { 5069 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 5070 LOG_DISCOVERY, 5071 "2772 Issue FCF rediscover mabilbox " 5072 "command failed, fail through to FCF " 5073 "dead event\n"); 5074 spin_lock_irq(&phba->hbalock); 5075 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 5076 spin_unlock_irq(&phba->hbalock); 5077 /* 5078 * Last resort will fail over by treating this 5079 * as a link down to FCF registration. 5080 */ 5081 lpfc_sli4_fcf_dead_failthrough(phba); 5082 } else { 5083 /* Reset FCF roundrobin bmask for new discovery */ 5084 lpfc_sli4_clear_fcf_rr_bmask(phba); 5085 /* 5086 * Handling fast FCF failover to a DEAD FCF event is 5087 * considered equalivant to receiving CVL to all vports. 5088 */ 5089 lpfc_sli4_perform_all_vport_cvl(phba); 5090 } 5091 break; 5092 case LPFC_FIP_EVENT_TYPE_CVL: 5093 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 5094 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5095 "2718 Clear Virtual Link Received for VPI 0x%x" 5096 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 5097 5098 vport = lpfc_find_vport_by_vpid(phba, 5099 acqe_fip->index); 5100 ndlp = lpfc_sli4_perform_vport_cvl(vport); 5101 if (!ndlp) 5102 break; 5103 active_vlink_present = 0; 5104 5105 vports = lpfc_create_vport_work_array(phba); 5106 if (vports) { 5107 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 5108 i++) { 5109 if ((!(vports[i]->fc_flag & 5110 FC_VPORT_CVL_RCVD)) && 5111 (vports[i]->port_state > LPFC_FDISC)) { 5112 active_vlink_present = 1; 5113 break; 5114 } 5115 } 5116 lpfc_destroy_vport_work_array(phba, vports); 5117 } 5118 5119 /* 5120 * Don't re-instantiate if vport is marked for deletion. 5121 * If we are here first then vport_delete is going to wait 5122 * for discovery to complete. 5123 */ 5124 if (!(vport->load_flag & FC_UNLOADING) && 5125 active_vlink_present) { 5126 /* 5127 * If there are other active VLinks present, 5128 * re-instantiate the Vlink using FDISC. 5129 */ 5130 mod_timer(&ndlp->nlp_delayfunc, 5131 jiffies + msecs_to_jiffies(1000)); 5132 shost = lpfc_shost_from_vport(vport); 5133 spin_lock_irq(shost->host_lock); 5134 ndlp->nlp_flag |= NLP_DELAY_TMO; 5135 spin_unlock_irq(shost->host_lock); 5136 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 5137 vport->port_state = LPFC_FDISC; 5138 } else { 5139 /* 5140 * Otherwise, we request port to rediscover 5141 * the entire FCF table for a fast recovery 5142 * from possible case that the current FCF 5143 * is no longer valid if we are not already 5144 * in the FCF failover process. 5145 */ 5146 spin_lock_irq(&phba->hbalock); 5147 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 5148 spin_unlock_irq(&phba->hbalock); 5149 break; 5150 } 5151 /* Mark the fast failover process in progress */ 5152 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 5153 spin_unlock_irq(&phba->hbalock); 5154 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 5155 LOG_DISCOVERY, 5156 "2773 Start FCF failover per CVL, " 5157 "evt_tag:x%x\n", acqe_fip->event_tag); 5158 rc = lpfc_sli4_redisc_fcf_table(phba); 5159 if (rc) { 5160 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 5161 LOG_DISCOVERY, 5162 "2774 Issue FCF rediscover " 5163 "mabilbox command failed, " 5164 "through to CVL event\n"); 5165 spin_lock_irq(&phba->hbalock); 5166 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 5167 spin_unlock_irq(&phba->hbalock); 5168 /* 5169 * Last resort will be re-try on the 5170 * the current registered FCF entry. 5171 */ 5172 lpfc_retry_pport_discovery(phba); 5173 } else 5174 /* 5175 * Reset FCF roundrobin bmask for new 5176 * discovery. 5177 */ 5178 lpfc_sli4_clear_fcf_rr_bmask(phba); 5179 } 5180 break; 5181 default: 5182 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5183 "0288 Unknown FCoE event type 0x%x event tag " 5184 "0x%x\n", event_type, acqe_fip->event_tag); 5185 break; 5186 } 5187 } 5188 5189 /** 5190 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 5191 * @phba: pointer to lpfc hba data structure. 5192 * @acqe_link: pointer to the async dcbx completion queue entry. 5193 * 5194 * This routine is to handle the SLI4 asynchronous dcbx event. 5195 **/ 5196 static void 5197 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 5198 struct lpfc_acqe_dcbx *acqe_dcbx) 5199 { 5200 phba->fc_eventTag = acqe_dcbx->event_tag; 5201 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5202 "0290 The SLI4 DCBX asynchronous event is not " 5203 "handled yet\n"); 5204 } 5205 5206 /** 5207 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 5208 * @phba: pointer to lpfc hba data structure. 5209 * @acqe_link: pointer to the async grp5 completion queue entry. 5210 * 5211 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 5212 * is an asynchronous notified of a logical link speed change. The Port 5213 * reports the logical link speed in units of 10Mbps. 5214 **/ 5215 static void 5216 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 5217 struct lpfc_acqe_grp5 *acqe_grp5) 5218 { 5219 uint16_t prev_ll_spd; 5220 5221 phba->fc_eventTag = acqe_grp5->event_tag; 5222 phba->fcoe_eventtag = acqe_grp5->event_tag; 5223 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 5224 phba->sli4_hba.link_state.logical_speed = 5225 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10; 5226 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5227 "2789 GRP5 Async Event: Updating logical link speed " 5228 "from %dMbps to %dMbps\n", prev_ll_spd, 5229 phba->sli4_hba.link_state.logical_speed); 5230 } 5231 5232 /** 5233 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 5234 * @phba: pointer to lpfc hba data structure. 5235 * 5236 * This routine is invoked by the worker thread to process all the pending 5237 * SLI4 asynchronous events. 5238 **/ 5239 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 5240 { 5241 struct lpfc_cq_event *cq_event; 5242 5243 /* First, declare the async event has been handled */ 5244 spin_lock_irq(&phba->hbalock); 5245 phba->hba_flag &= ~ASYNC_EVENT; 5246 spin_unlock_irq(&phba->hbalock); 5247 /* Now, handle all the async events */ 5248 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 5249 /* Get the first event from the head of the event queue */ 5250 spin_lock_irq(&phba->hbalock); 5251 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 5252 cq_event, struct lpfc_cq_event, list); 5253 spin_unlock_irq(&phba->hbalock); 5254 /* Process the asynchronous event */ 5255 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 5256 case LPFC_TRAILER_CODE_LINK: 5257 lpfc_sli4_async_link_evt(phba, 5258 &cq_event->cqe.acqe_link); 5259 break; 5260 case LPFC_TRAILER_CODE_FCOE: 5261 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 5262 break; 5263 case LPFC_TRAILER_CODE_DCBX: 5264 lpfc_sli4_async_dcbx_evt(phba, 5265 &cq_event->cqe.acqe_dcbx); 5266 break; 5267 case LPFC_TRAILER_CODE_GRP5: 5268 lpfc_sli4_async_grp5_evt(phba, 5269 &cq_event->cqe.acqe_grp5); 5270 break; 5271 case LPFC_TRAILER_CODE_FC: 5272 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 5273 break; 5274 case LPFC_TRAILER_CODE_SLI: 5275 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 5276 break; 5277 default: 5278 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5279 "1804 Invalid asynchrous event code: " 5280 "x%x\n", bf_get(lpfc_trailer_code, 5281 &cq_event->cqe.mcqe_cmpl)); 5282 break; 5283 } 5284 /* Free the completion event processed to the free pool */ 5285 lpfc_sli4_cq_event_release(phba, cq_event); 5286 } 5287 } 5288 5289 /** 5290 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 5291 * @phba: pointer to lpfc hba data structure. 5292 * 5293 * This routine is invoked by the worker thread to process FCF table 5294 * rediscovery pending completion event. 5295 **/ 5296 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 5297 { 5298 int rc; 5299 5300 spin_lock_irq(&phba->hbalock); 5301 /* Clear FCF rediscovery timeout event */ 5302 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 5303 /* Clear driver fast failover FCF record flag */ 5304 phba->fcf.failover_rec.flag = 0; 5305 /* Set state for FCF fast failover */ 5306 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 5307 spin_unlock_irq(&phba->hbalock); 5308 5309 /* Scan FCF table from the first entry to re-discover SAN */ 5310 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5311 "2777 Start post-quiescent FCF table scan\n"); 5312 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 5313 if (rc) 5314 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5315 "2747 Issue FCF scan read FCF mailbox " 5316 "command failed 0x%x\n", rc); 5317 } 5318 5319 /** 5320 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 5321 * @phba: pointer to lpfc hba data structure. 5322 * @dev_grp: The HBA PCI-Device group number. 5323 * 5324 * This routine is invoked to set up the per HBA PCI-Device group function 5325 * API jump table entries. 5326 * 5327 * Return: 0 if success, otherwise -ENODEV 5328 **/ 5329 int 5330 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 5331 { 5332 int rc; 5333 5334 /* Set up lpfc PCI-device group */ 5335 phba->pci_dev_grp = dev_grp; 5336 5337 /* The LPFC_PCI_DEV_OC uses SLI4 */ 5338 if (dev_grp == LPFC_PCI_DEV_OC) 5339 phba->sli_rev = LPFC_SLI_REV4; 5340 5341 /* Set up device INIT API function jump table */ 5342 rc = lpfc_init_api_table_setup(phba, dev_grp); 5343 if (rc) 5344 return -ENODEV; 5345 /* Set up SCSI API function jump table */ 5346 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 5347 if (rc) 5348 return -ENODEV; 5349 /* Set up SLI API function jump table */ 5350 rc = lpfc_sli_api_table_setup(phba, dev_grp); 5351 if (rc) 5352 return -ENODEV; 5353 /* Set up MBOX API function jump table */ 5354 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 5355 if (rc) 5356 return -ENODEV; 5357 5358 return 0; 5359 } 5360 5361 /** 5362 * lpfc_log_intr_mode - Log the active interrupt mode 5363 * @phba: pointer to lpfc hba data structure. 5364 * @intr_mode: active interrupt mode adopted. 5365 * 5366 * This routine it invoked to log the currently used active interrupt mode 5367 * to the device. 5368 **/ 5369 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 5370 { 5371 switch (intr_mode) { 5372 case 0: 5373 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5374 "0470 Enable INTx interrupt mode.\n"); 5375 break; 5376 case 1: 5377 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5378 "0481 Enabled MSI interrupt mode.\n"); 5379 break; 5380 case 2: 5381 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5382 "0480 Enabled MSI-X interrupt mode.\n"); 5383 break; 5384 default: 5385 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5386 "0482 Illegal interrupt mode.\n"); 5387 break; 5388 } 5389 return; 5390 } 5391 5392 /** 5393 * lpfc_enable_pci_dev - Enable a generic PCI device. 5394 * @phba: pointer to lpfc hba data structure. 5395 * 5396 * This routine is invoked to enable the PCI device that is common to all 5397 * PCI devices. 5398 * 5399 * Return codes 5400 * 0 - successful 5401 * other values - error 5402 **/ 5403 static int 5404 lpfc_enable_pci_dev(struct lpfc_hba *phba) 5405 { 5406 struct pci_dev *pdev; 5407 5408 /* Obtain PCI device reference */ 5409 if (!phba->pcidev) 5410 goto out_error; 5411 else 5412 pdev = phba->pcidev; 5413 /* Enable PCI device */ 5414 if (pci_enable_device_mem(pdev)) 5415 goto out_error; 5416 /* Request PCI resource for the device */ 5417 if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME)) 5418 goto out_disable_device; 5419 /* Set up device as PCI master and save state for EEH */ 5420 pci_set_master(pdev); 5421 pci_try_set_mwi(pdev); 5422 pci_save_state(pdev); 5423 5424 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 5425 if (pci_is_pcie(pdev)) 5426 pdev->needs_freset = 1; 5427 5428 return 0; 5429 5430 out_disable_device: 5431 pci_disable_device(pdev); 5432 out_error: 5433 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5434 "1401 Failed to enable pci device\n"); 5435 return -ENODEV; 5436 } 5437 5438 /** 5439 * lpfc_disable_pci_dev - Disable a generic PCI device. 5440 * @phba: pointer to lpfc hba data structure. 5441 * 5442 * This routine is invoked to disable the PCI device that is common to all 5443 * PCI devices. 5444 **/ 5445 static void 5446 lpfc_disable_pci_dev(struct lpfc_hba *phba) 5447 { 5448 struct pci_dev *pdev; 5449 5450 /* Obtain PCI device reference */ 5451 if (!phba->pcidev) 5452 return; 5453 else 5454 pdev = phba->pcidev; 5455 /* Release PCI resource and disable PCI device */ 5456 pci_release_mem_regions(pdev); 5457 pci_disable_device(pdev); 5458 5459 return; 5460 } 5461 5462 /** 5463 * lpfc_reset_hba - Reset a hba 5464 * @phba: pointer to lpfc hba data structure. 5465 * 5466 * This routine is invoked to reset a hba device. It brings the HBA 5467 * offline, performs a board restart, and then brings the board back 5468 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 5469 * on outstanding mailbox commands. 5470 **/ 5471 void 5472 lpfc_reset_hba(struct lpfc_hba *phba) 5473 { 5474 /* If resets are disabled then set error state and return. */ 5475 if (!phba->cfg_enable_hba_reset) { 5476 phba->link_state = LPFC_HBA_ERROR; 5477 return; 5478 } 5479 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) 5480 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 5481 else 5482 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 5483 lpfc_offline(phba); 5484 lpfc_sli_brdrestart(phba); 5485 lpfc_online(phba); 5486 lpfc_unblock_mgmt_io(phba); 5487 } 5488 5489 /** 5490 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 5491 * @phba: pointer to lpfc hba data structure. 5492 * 5493 * This function enables the PCI SR-IOV virtual functions to a physical 5494 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 5495 * enable the number of virtual functions to the physical function. As 5496 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 5497 * API call does not considered as an error condition for most of the device. 5498 **/ 5499 uint16_t 5500 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 5501 { 5502 struct pci_dev *pdev = phba->pcidev; 5503 uint16_t nr_virtfn; 5504 int pos; 5505 5506 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 5507 if (pos == 0) 5508 return 0; 5509 5510 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 5511 return nr_virtfn; 5512 } 5513 5514 /** 5515 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 5516 * @phba: pointer to lpfc hba data structure. 5517 * @nr_vfn: number of virtual functions to be enabled. 5518 * 5519 * This function enables the PCI SR-IOV virtual functions to a physical 5520 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 5521 * enable the number of virtual functions to the physical function. As 5522 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 5523 * API call does not considered as an error condition for most of the device. 5524 **/ 5525 int 5526 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 5527 { 5528 struct pci_dev *pdev = phba->pcidev; 5529 uint16_t max_nr_vfn; 5530 int rc; 5531 5532 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 5533 if (nr_vfn > max_nr_vfn) { 5534 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5535 "3057 Requested vfs (%d) greater than " 5536 "supported vfs (%d)", nr_vfn, max_nr_vfn); 5537 return -EINVAL; 5538 } 5539 5540 rc = pci_enable_sriov(pdev, nr_vfn); 5541 if (rc) { 5542 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5543 "2806 Failed to enable sriov on this device " 5544 "with vfn number nr_vf:%d, rc:%d\n", 5545 nr_vfn, rc); 5546 } else 5547 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5548 "2807 Successful enable sriov on this device " 5549 "with vfn number nr_vf:%d\n", nr_vfn); 5550 return rc; 5551 } 5552 5553 /** 5554 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 5555 * @phba: pointer to lpfc hba data structure. 5556 * 5557 * This routine is invoked to set up the driver internal resources before the 5558 * device specific resource setup to support the HBA device it attached to. 5559 * 5560 * Return codes 5561 * 0 - successful 5562 * other values - error 5563 **/ 5564 static int 5565 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 5566 { 5567 struct lpfc_sli *psli = &phba->sli; 5568 5569 /* 5570 * Driver resources common to all SLI revisions 5571 */ 5572 atomic_set(&phba->fast_event_count, 0); 5573 spin_lock_init(&phba->hbalock); 5574 5575 /* Initialize ndlp management spinlock */ 5576 spin_lock_init(&phba->ndlp_lock); 5577 5578 INIT_LIST_HEAD(&phba->port_list); 5579 INIT_LIST_HEAD(&phba->work_list); 5580 init_waitqueue_head(&phba->wait_4_mlo_m_q); 5581 5582 /* Initialize the wait queue head for the kernel thread */ 5583 init_waitqueue_head(&phba->work_waitq); 5584 5585 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5586 "1403 Protocols supported %s %s %s\n", 5587 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ? 5588 "SCSI" : " "), 5589 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ? 5590 "NVME" : " "), 5591 (phba->nvmet_support ? "NVMET" : " ")); 5592 5593 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 5594 /* Initialize the scsi buffer list used by driver for scsi IO */ 5595 spin_lock_init(&phba->scsi_buf_list_get_lock); 5596 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get); 5597 spin_lock_init(&phba->scsi_buf_list_put_lock); 5598 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 5599 } 5600 5601 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) && 5602 (phba->nvmet_support == 0)) { 5603 /* Initialize the NVME buffer list used by driver for NVME IO */ 5604 spin_lock_init(&phba->nvme_buf_list_get_lock); 5605 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get); 5606 spin_lock_init(&phba->nvme_buf_list_put_lock); 5607 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 5608 } 5609 5610 /* Initialize the fabric iocb list */ 5611 INIT_LIST_HEAD(&phba->fabric_iocb_list); 5612 5613 /* Initialize list to save ELS buffers */ 5614 INIT_LIST_HEAD(&phba->elsbuf); 5615 5616 /* Initialize FCF connection rec list */ 5617 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 5618 5619 /* Initialize OAS configuration list */ 5620 spin_lock_init(&phba->devicelock); 5621 INIT_LIST_HEAD(&phba->luns); 5622 5623 /* MBOX heartbeat timer */ 5624 timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0); 5625 /* Fabric block timer */ 5626 timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0); 5627 /* EA polling mode timer */ 5628 timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0); 5629 /* Heartbeat timer */ 5630 timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0); 5631 5632 return 0; 5633 } 5634 5635 /** 5636 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev 5637 * @phba: pointer to lpfc hba data structure. 5638 * 5639 * This routine is invoked to set up the driver internal resources specific to 5640 * support the SLI-3 HBA device it attached to. 5641 * 5642 * Return codes 5643 * 0 - successful 5644 * other values - error 5645 **/ 5646 static int 5647 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 5648 { 5649 int rc; 5650 5651 /* 5652 * Initialize timers used by driver 5653 */ 5654 5655 /* FCP polling mode timer */ 5656 timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0); 5657 5658 /* Host attention work mask setup */ 5659 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 5660 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 5661 5662 /* Get all the module params for configuring this host */ 5663 lpfc_get_cfgparam(phba); 5664 /* Set up phase-1 common device driver resources */ 5665 5666 rc = lpfc_setup_driver_resource_phase1(phba); 5667 if (rc) 5668 return -ENODEV; 5669 5670 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 5671 phba->menlo_flag |= HBA_MENLO_SUPPORT; 5672 /* check for menlo minimum sg count */ 5673 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 5674 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 5675 } 5676 5677 if (!phba->sli.sli3_ring) 5678 phba->sli.sli3_ring = kzalloc(LPFC_SLI3_MAX_RING * 5679 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 5680 if (!phba->sli.sli3_ring) 5681 return -ENOMEM; 5682 5683 /* 5684 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size 5685 * used to create the sg_dma_buf_pool must be dynamically calculated. 5686 */ 5687 5688 /* Initialize the host templates the configured values. */ 5689 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5690 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; 5691 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5692 5693 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */ 5694 if (phba->cfg_enable_bg) { 5695 /* 5696 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, 5697 * the FCP rsp, and a BDE for each. Sice we have no control 5698 * over how many protection data segments the SCSI Layer 5699 * will hand us (ie: there could be one for every block 5700 * in the IO), we just allocate enough BDEs to accomidate 5701 * our max amount and we need to limit lpfc_sg_seg_cnt to 5702 * minimize the risk of running out. 5703 */ 5704 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5705 sizeof(struct fcp_rsp) + 5706 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64)); 5707 5708 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF) 5709 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF; 5710 5711 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */ 5712 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT; 5713 } else { 5714 /* 5715 * The scsi_buf for a regular I/O will hold the FCP cmnd, 5716 * the FCP rsp, a BDE for each, and a BDE for up to 5717 * cfg_sg_seg_cnt data segments. 5718 */ 5719 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5720 sizeof(struct fcp_rsp) + 5721 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 5722 5723 /* Total BDEs in BPL for scsi_sg_list */ 5724 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5725 } 5726 5727 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5728 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n", 5729 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5730 phba->cfg_total_seg_cnt); 5731 5732 phba->max_vpi = LPFC_MAX_VPI; 5733 /* This will be set to correct value after config_port mbox */ 5734 phba->max_vports = 0; 5735 5736 /* 5737 * Initialize the SLI Layer to run with lpfc HBAs. 5738 */ 5739 lpfc_sli_setup(phba); 5740 lpfc_sli_queue_init(phba); 5741 5742 /* Allocate device driver memory */ 5743 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 5744 return -ENOMEM; 5745 5746 /* 5747 * Enable sr-iov virtual functions if supported and configured 5748 * through the module parameter. 5749 */ 5750 if (phba->cfg_sriov_nr_virtfn > 0) { 5751 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 5752 phba->cfg_sriov_nr_virtfn); 5753 if (rc) { 5754 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5755 "2808 Requested number of SR-IOV " 5756 "virtual functions (%d) is not " 5757 "supported\n", 5758 phba->cfg_sriov_nr_virtfn); 5759 phba->cfg_sriov_nr_virtfn = 0; 5760 } 5761 } 5762 5763 return 0; 5764 } 5765 5766 /** 5767 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 5768 * @phba: pointer to lpfc hba data structure. 5769 * 5770 * This routine is invoked to unset the driver internal resources set up 5771 * specific for supporting the SLI-3 HBA device it attached to. 5772 **/ 5773 static void 5774 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 5775 { 5776 /* Free device driver memory allocated */ 5777 lpfc_mem_free_all(phba); 5778 5779 return; 5780 } 5781 5782 /** 5783 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 5784 * @phba: pointer to lpfc hba data structure. 5785 * 5786 * This routine is invoked to set up the driver internal resources specific to 5787 * support the SLI-4 HBA device it attached to. 5788 * 5789 * Return codes 5790 * 0 - successful 5791 * other values - error 5792 **/ 5793 static int 5794 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 5795 { 5796 LPFC_MBOXQ_t *mboxq; 5797 MAILBOX_t *mb; 5798 int rc, i, max_buf_size; 5799 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 5800 struct lpfc_mqe *mqe; 5801 int longs; 5802 int fof_vectors = 0; 5803 uint64_t wwn; 5804 5805 phba->sli4_hba.num_online_cpu = num_online_cpus(); 5806 phba->sli4_hba.num_present_cpu = lpfc_present_cpu; 5807 phba->sli4_hba.curr_disp_cpu = 0; 5808 5809 /* Get all the module params for configuring this host */ 5810 lpfc_get_cfgparam(phba); 5811 5812 /* Set up phase-1 common device driver resources */ 5813 rc = lpfc_setup_driver_resource_phase1(phba); 5814 if (rc) 5815 return -ENODEV; 5816 5817 /* Before proceed, wait for POST done and device ready */ 5818 rc = lpfc_sli4_post_status_check(phba); 5819 if (rc) 5820 return -ENODEV; 5821 5822 /* 5823 * Initialize timers used by driver 5824 */ 5825 5826 timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0); 5827 5828 /* FCF rediscover timer */ 5829 timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0); 5830 5831 /* 5832 * Control structure for handling external multi-buffer mailbox 5833 * command pass-through. 5834 */ 5835 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 5836 sizeof(struct lpfc_mbox_ext_buf_ctx)); 5837 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 5838 5839 phba->max_vpi = LPFC_MAX_VPI; 5840 5841 /* This will be set to correct value after the read_config mbox */ 5842 phba->max_vports = 0; 5843 5844 /* Program the default value of vlan_id and fc_map */ 5845 phba->valid_vlan = 0; 5846 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 5847 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 5848 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 5849 5850 /* 5851 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands 5852 * we will associate a new ring, for each EQ/CQ/WQ tuple. 5853 * The WQ create will allocate the ring. 5854 */ 5855 5856 /* 5857 * It doesn't matter what family our adapter is in, we are 5858 * limited to 2 Pages, 512 SGEs, for our SGL. 5859 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp 5860 */ 5861 max_buf_size = (2 * SLI4_PAGE_SIZE); 5862 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2) 5863 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2; 5864 5865 /* 5866 * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size 5867 * used to create the sg_dma_buf_pool must be calculated. 5868 */ 5869 if (phba->cfg_enable_bg) { 5870 /* 5871 * The scsi_buf for a T10-DIF I/O holds the FCP cmnd, 5872 * the FCP rsp, and a SGE. Sice we have no control 5873 * over how many protection segments the SCSI Layer 5874 * will hand us (ie: there could be one for every block 5875 * in the IO), just allocate enough SGEs to accomidate 5876 * our max amount and we need to limit lpfc_sg_seg_cnt 5877 * to minimize the risk of running out. 5878 */ 5879 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5880 sizeof(struct fcp_rsp) + max_buf_size; 5881 5882 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */ 5883 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT; 5884 5885 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF) 5886 phba->cfg_sg_seg_cnt = 5887 LPFC_MAX_SG_SLI4_SEG_CNT_DIF; 5888 } else { 5889 /* 5890 * The scsi_buf for a regular I/O holds the FCP cmnd, 5891 * the FCP rsp, a SGE for each, and a SGE for up to 5892 * cfg_sg_seg_cnt data segments. 5893 */ 5894 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5895 sizeof(struct fcp_rsp) + 5896 ((phba->cfg_sg_seg_cnt + 2) * 5897 sizeof(struct sli4_sge)); 5898 5899 /* Total SGEs for scsi_sg_list */ 5900 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5901 5902 /* 5903 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only 5904 * need to post 1 page for the SGL. 5905 */ 5906 } 5907 5908 /* Initialize the host templates with the updated values. */ 5909 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5910 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5911 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; 5912 5913 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ) 5914 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ; 5915 else 5916 phba->cfg_sg_dma_buf_size = 5917 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size); 5918 5919 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5920 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n", 5921 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5922 phba->cfg_total_seg_cnt); 5923 5924 /* Initialize buffer queue management fields */ 5925 INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list); 5926 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 5927 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 5928 5929 /* 5930 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 5931 */ 5932 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 5933 /* Initialize the Abort scsi buffer list used by driver */ 5934 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 5935 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 5936 } 5937 5938 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 5939 /* Initialize the Abort nvme buffer list used by driver */ 5940 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock); 5941 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list); 5942 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 5943 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list); 5944 5945 /* Fast-path XRI aborted CQ Event work queue list */ 5946 INIT_LIST_HEAD(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue); 5947 } 5948 5949 /* This abort list used by worker thread */ 5950 spin_lock_init(&phba->sli4_hba.sgl_list_lock); 5951 spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock); 5952 5953 /* 5954 * Initialize driver internal slow-path work queues 5955 */ 5956 5957 /* Driver internel slow-path CQ Event pool */ 5958 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 5959 /* Response IOCB work queue list */ 5960 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 5961 /* Asynchronous event CQ Event work queue list */ 5962 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 5963 /* Fast-path XRI aborted CQ Event work queue list */ 5964 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 5965 /* Slow-path XRI aborted CQ Event work queue list */ 5966 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 5967 /* Receive queue CQ Event work queue list */ 5968 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 5969 5970 /* Initialize extent block lists. */ 5971 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 5972 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 5973 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 5974 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 5975 5976 /* Initialize mboxq lists. If the early init routines fail 5977 * these lists need to be correctly initialized. 5978 */ 5979 INIT_LIST_HEAD(&phba->sli.mboxq); 5980 INIT_LIST_HEAD(&phba->sli.mboxq_cmpl); 5981 5982 /* initialize optic_state to 0xFF */ 5983 phba->sli4_hba.lnk_info.optic_state = 0xff; 5984 5985 /* Allocate device driver memory */ 5986 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 5987 if (rc) 5988 return -ENOMEM; 5989 5990 /* IF Type 2 ports get initialized now. */ 5991 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5992 LPFC_SLI_INTF_IF_TYPE_2) { 5993 rc = lpfc_pci_function_reset(phba); 5994 if (unlikely(rc)) { 5995 rc = -ENODEV; 5996 goto out_free_mem; 5997 } 5998 phba->temp_sensor_support = 1; 5999 } 6000 6001 /* Create the bootstrap mailbox command */ 6002 rc = lpfc_create_bootstrap_mbox(phba); 6003 if (unlikely(rc)) 6004 goto out_free_mem; 6005 6006 /* Set up the host's endian order with the device. */ 6007 rc = lpfc_setup_endian_order(phba); 6008 if (unlikely(rc)) 6009 goto out_free_bsmbx; 6010 6011 /* Set up the hba's configuration parameters. */ 6012 rc = lpfc_sli4_read_config(phba); 6013 if (unlikely(rc)) 6014 goto out_free_bsmbx; 6015 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba); 6016 if (unlikely(rc)) 6017 goto out_free_bsmbx; 6018 6019 /* IF Type 0 ports get initialized now. */ 6020 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 6021 LPFC_SLI_INTF_IF_TYPE_0) { 6022 rc = lpfc_pci_function_reset(phba); 6023 if (unlikely(rc)) 6024 goto out_free_bsmbx; 6025 } 6026 6027 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6028 GFP_KERNEL); 6029 if (!mboxq) { 6030 rc = -ENOMEM; 6031 goto out_free_bsmbx; 6032 } 6033 6034 /* Check for NVMET being configured */ 6035 phba->nvmet_support = 0; 6036 if (lpfc_enable_nvmet_cnt) { 6037 6038 /* First get WWN of HBA instance */ 6039 lpfc_read_nv(phba, mboxq); 6040 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6041 if (rc != MBX_SUCCESS) { 6042 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6043 "6016 Mailbox failed , mbxCmd x%x " 6044 "READ_NV, mbxStatus x%x\n", 6045 bf_get(lpfc_mqe_command, &mboxq->u.mqe), 6046 bf_get(lpfc_mqe_status, &mboxq->u.mqe)); 6047 mempool_free(mboxq, phba->mbox_mem_pool); 6048 rc = -EIO; 6049 goto out_free_bsmbx; 6050 } 6051 mb = &mboxq->u.mb; 6052 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename, 6053 sizeof(uint64_t)); 6054 wwn = cpu_to_be64(wwn); 6055 phba->sli4_hba.wwnn.u.name = wwn; 6056 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, 6057 sizeof(uint64_t)); 6058 /* wwn is WWPN of HBA instance */ 6059 wwn = cpu_to_be64(wwn); 6060 phba->sli4_hba.wwpn.u.name = wwn; 6061 6062 /* Check to see if it matches any module parameter */ 6063 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) { 6064 if (wwn == lpfc_enable_nvmet[i]) { 6065 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC)) 6066 if (lpfc_nvmet_mem_alloc(phba)) 6067 break; 6068 6069 phba->nvmet_support = 1; /* a match */ 6070 6071 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6072 "6017 NVME Target %016llx\n", 6073 wwn); 6074 #else 6075 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6076 "6021 Can't enable NVME Target." 6077 " NVME_TARGET_FC infrastructure" 6078 " is not in kernel\n"); 6079 #endif 6080 break; 6081 } 6082 } 6083 } 6084 6085 lpfc_nvme_mod_param_dep(phba); 6086 6087 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 6088 lpfc_supported_pages(mboxq); 6089 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6090 if (!rc) { 6091 mqe = &mboxq->u.mqe; 6092 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 6093 LPFC_MAX_SUPPORTED_PAGES); 6094 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 6095 switch (pn_page[i]) { 6096 case LPFC_SLI4_PARAMETERS: 6097 phba->sli4_hba.pc_sli4_params.supported = 1; 6098 break; 6099 default: 6100 break; 6101 } 6102 } 6103 /* Read the port's SLI4 Parameters capabilities if supported. */ 6104 if (phba->sli4_hba.pc_sli4_params.supported) 6105 rc = lpfc_pc_sli4_params_get(phba, mboxq); 6106 if (rc) { 6107 mempool_free(mboxq, phba->mbox_mem_pool); 6108 rc = -EIO; 6109 goto out_free_bsmbx; 6110 } 6111 } 6112 6113 /* 6114 * Get sli4 parameters that override parameters from Port capabilities. 6115 * If this call fails, it isn't critical unless the SLI4 parameters come 6116 * back in conflict. 6117 */ 6118 rc = lpfc_get_sli4_parameters(phba, mboxq); 6119 if (rc) { 6120 if (phba->sli4_hba.extents_in_use && 6121 phba->sli4_hba.rpi_hdrs_in_use) { 6122 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6123 "2999 Unsupported SLI4 Parameters " 6124 "Extents and RPI headers enabled.\n"); 6125 } 6126 mempool_free(mboxq, phba->mbox_mem_pool); 6127 rc = -EIO; 6128 goto out_free_bsmbx; 6129 } 6130 6131 mempool_free(mboxq, phba->mbox_mem_pool); 6132 6133 /* Verify OAS is supported */ 6134 lpfc_sli4_oas_verify(phba); 6135 if (phba->cfg_fof) 6136 fof_vectors = 1; 6137 6138 /* Verify all the SLI4 queues */ 6139 rc = lpfc_sli4_queue_verify(phba); 6140 if (rc) 6141 goto out_free_bsmbx; 6142 6143 /* Create driver internal CQE event pool */ 6144 rc = lpfc_sli4_cq_event_pool_create(phba); 6145 if (rc) 6146 goto out_free_bsmbx; 6147 6148 /* Initialize sgl lists per host */ 6149 lpfc_init_sgl_list(phba); 6150 6151 /* Allocate and initialize active sgl array */ 6152 rc = lpfc_init_active_sgl_array(phba); 6153 if (rc) { 6154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6155 "1430 Failed to initialize sgl list.\n"); 6156 goto out_destroy_cq_event_pool; 6157 } 6158 rc = lpfc_sli4_init_rpi_hdrs(phba); 6159 if (rc) { 6160 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6161 "1432 Failed to initialize rpi headers.\n"); 6162 goto out_free_active_sgl; 6163 } 6164 6165 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 6166 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 6167 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 6168 GFP_KERNEL); 6169 if (!phba->fcf.fcf_rr_bmask) { 6170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6171 "2759 Failed allocate memory for FCF round " 6172 "robin failover bmask\n"); 6173 rc = -ENOMEM; 6174 goto out_remove_rpi_hdrs; 6175 } 6176 6177 phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs, 6178 sizeof(struct lpfc_hba_eq_hdl), 6179 GFP_KERNEL); 6180 if (!phba->sli4_hba.hba_eq_hdl) { 6181 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6182 "2572 Failed allocate memory for " 6183 "fast-path per-EQ handle array\n"); 6184 rc = -ENOMEM; 6185 goto out_free_fcf_rr_bmask; 6186 } 6187 6188 phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu, 6189 sizeof(struct lpfc_vector_map_info), 6190 GFP_KERNEL); 6191 if (!phba->sli4_hba.cpu_map) { 6192 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6193 "3327 Failed allocate memory for msi-x " 6194 "interrupt vector mapping\n"); 6195 rc = -ENOMEM; 6196 goto out_free_hba_eq_hdl; 6197 } 6198 if (lpfc_used_cpu == NULL) { 6199 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t), 6200 GFP_KERNEL); 6201 if (!lpfc_used_cpu) { 6202 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6203 "3335 Failed allocate memory for msi-x " 6204 "interrupt vector mapping\n"); 6205 kfree(phba->sli4_hba.cpu_map); 6206 rc = -ENOMEM; 6207 goto out_free_hba_eq_hdl; 6208 } 6209 for (i = 0; i < lpfc_present_cpu; i++) 6210 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY; 6211 } 6212 6213 /* 6214 * Enable sr-iov virtual functions if supported and configured 6215 * through the module parameter. 6216 */ 6217 if (phba->cfg_sriov_nr_virtfn > 0) { 6218 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 6219 phba->cfg_sriov_nr_virtfn); 6220 if (rc) { 6221 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6222 "3020 Requested number of SR-IOV " 6223 "virtual functions (%d) is not " 6224 "supported\n", 6225 phba->cfg_sriov_nr_virtfn); 6226 phba->cfg_sriov_nr_virtfn = 0; 6227 } 6228 } 6229 6230 return 0; 6231 6232 out_free_hba_eq_hdl: 6233 kfree(phba->sli4_hba.hba_eq_hdl); 6234 out_free_fcf_rr_bmask: 6235 kfree(phba->fcf.fcf_rr_bmask); 6236 out_remove_rpi_hdrs: 6237 lpfc_sli4_remove_rpi_hdrs(phba); 6238 out_free_active_sgl: 6239 lpfc_free_active_sgl(phba); 6240 out_destroy_cq_event_pool: 6241 lpfc_sli4_cq_event_pool_destroy(phba); 6242 out_free_bsmbx: 6243 lpfc_destroy_bootstrap_mbox(phba); 6244 out_free_mem: 6245 lpfc_mem_free(phba); 6246 return rc; 6247 } 6248 6249 /** 6250 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 6251 * @phba: pointer to lpfc hba data structure. 6252 * 6253 * This routine is invoked to unset the driver internal resources set up 6254 * specific for supporting the SLI-4 HBA device it attached to. 6255 **/ 6256 static void 6257 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 6258 { 6259 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6260 6261 /* Free memory allocated for msi-x interrupt vector to CPU mapping */ 6262 kfree(phba->sli4_hba.cpu_map); 6263 phba->sli4_hba.num_present_cpu = 0; 6264 phba->sli4_hba.num_online_cpu = 0; 6265 phba->sli4_hba.curr_disp_cpu = 0; 6266 6267 /* Free memory allocated for fast-path work queue handles */ 6268 kfree(phba->sli4_hba.hba_eq_hdl); 6269 6270 /* Free the allocated rpi headers. */ 6271 lpfc_sli4_remove_rpi_hdrs(phba); 6272 lpfc_sli4_remove_rpis(phba); 6273 6274 /* Free eligible FCF index bmask */ 6275 kfree(phba->fcf.fcf_rr_bmask); 6276 6277 /* Free the ELS sgl list */ 6278 lpfc_free_active_sgl(phba); 6279 lpfc_free_els_sgl_list(phba); 6280 lpfc_free_nvmet_sgl_list(phba); 6281 6282 /* Free the completion queue EQ event pool */ 6283 lpfc_sli4_cq_event_release_all(phba); 6284 lpfc_sli4_cq_event_pool_destroy(phba); 6285 6286 /* Release resource identifiers. */ 6287 lpfc_sli4_dealloc_resource_identifiers(phba); 6288 6289 /* Free the bsmbx region. */ 6290 lpfc_destroy_bootstrap_mbox(phba); 6291 6292 /* Free the SLI Layer memory with SLI4 HBAs */ 6293 lpfc_mem_free_all(phba); 6294 6295 /* Free the current connect table */ 6296 list_for_each_entry_safe(conn_entry, next_conn_entry, 6297 &phba->fcf_conn_rec_list, list) { 6298 list_del_init(&conn_entry->list); 6299 kfree(conn_entry); 6300 } 6301 6302 return; 6303 } 6304 6305 /** 6306 * lpfc_init_api_table_setup - Set up init api function jump table 6307 * @phba: The hba struct for which this call is being executed. 6308 * @dev_grp: The HBA PCI-Device group number. 6309 * 6310 * This routine sets up the device INIT interface API function jump table 6311 * in @phba struct. 6312 * 6313 * Returns: 0 - success, -ENODEV - failure. 6314 **/ 6315 int 6316 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 6317 { 6318 phba->lpfc_hba_init_link = lpfc_hba_init_link; 6319 phba->lpfc_hba_down_link = lpfc_hba_down_link; 6320 phba->lpfc_selective_reset = lpfc_selective_reset; 6321 switch (dev_grp) { 6322 case LPFC_PCI_DEV_LP: 6323 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 6324 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 6325 phba->lpfc_stop_port = lpfc_stop_port_s3; 6326 break; 6327 case LPFC_PCI_DEV_OC: 6328 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 6329 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 6330 phba->lpfc_stop_port = lpfc_stop_port_s4; 6331 break; 6332 default: 6333 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6334 "1431 Invalid HBA PCI-device group: 0x%x\n", 6335 dev_grp); 6336 return -ENODEV; 6337 break; 6338 } 6339 return 0; 6340 } 6341 6342 /** 6343 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 6344 * @phba: pointer to lpfc hba data structure. 6345 * 6346 * This routine is invoked to set up the driver internal resources after the 6347 * device specific resource setup to support the HBA device it attached to. 6348 * 6349 * Return codes 6350 * 0 - successful 6351 * other values - error 6352 **/ 6353 static int 6354 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 6355 { 6356 int error; 6357 6358 /* Startup the kernel thread for this host adapter. */ 6359 phba->worker_thread = kthread_run(lpfc_do_work, phba, 6360 "lpfc_worker_%d", phba->brd_no); 6361 if (IS_ERR(phba->worker_thread)) { 6362 error = PTR_ERR(phba->worker_thread); 6363 return error; 6364 } 6365 6366 return 0; 6367 } 6368 6369 /** 6370 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 6371 * @phba: pointer to lpfc hba data structure. 6372 * 6373 * This routine is invoked to unset the driver internal resources set up after 6374 * the device specific resource setup for supporting the HBA device it 6375 * attached to. 6376 **/ 6377 static void 6378 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 6379 { 6380 /* Stop kernel worker thread */ 6381 kthread_stop(phba->worker_thread); 6382 } 6383 6384 /** 6385 * lpfc_free_iocb_list - Free iocb list. 6386 * @phba: pointer to lpfc hba data structure. 6387 * 6388 * This routine is invoked to free the driver's IOCB list and memory. 6389 **/ 6390 void 6391 lpfc_free_iocb_list(struct lpfc_hba *phba) 6392 { 6393 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 6394 6395 spin_lock_irq(&phba->hbalock); 6396 list_for_each_entry_safe(iocbq_entry, iocbq_next, 6397 &phba->lpfc_iocb_list, list) { 6398 list_del(&iocbq_entry->list); 6399 kfree(iocbq_entry); 6400 phba->total_iocbq_bufs--; 6401 } 6402 spin_unlock_irq(&phba->hbalock); 6403 6404 return; 6405 } 6406 6407 /** 6408 * lpfc_init_iocb_list - Allocate and initialize iocb list. 6409 * @phba: pointer to lpfc hba data structure. 6410 * 6411 * This routine is invoked to allocate and initizlize the driver's IOCB 6412 * list and set up the IOCB tag array accordingly. 6413 * 6414 * Return codes 6415 * 0 - successful 6416 * other values - error 6417 **/ 6418 int 6419 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 6420 { 6421 struct lpfc_iocbq *iocbq_entry = NULL; 6422 uint16_t iotag; 6423 int i; 6424 6425 /* Initialize and populate the iocb list per host. */ 6426 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 6427 for (i = 0; i < iocb_count; i++) { 6428 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 6429 if (iocbq_entry == NULL) { 6430 printk(KERN_ERR "%s: only allocated %d iocbs of " 6431 "expected %d count. Unloading driver.\n", 6432 __func__, i, LPFC_IOCB_LIST_CNT); 6433 goto out_free_iocbq; 6434 } 6435 6436 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 6437 if (iotag == 0) { 6438 kfree(iocbq_entry); 6439 printk(KERN_ERR "%s: failed to allocate IOTAG. " 6440 "Unloading driver.\n", __func__); 6441 goto out_free_iocbq; 6442 } 6443 iocbq_entry->sli4_lxritag = NO_XRI; 6444 iocbq_entry->sli4_xritag = NO_XRI; 6445 6446 spin_lock_irq(&phba->hbalock); 6447 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 6448 phba->total_iocbq_bufs++; 6449 spin_unlock_irq(&phba->hbalock); 6450 } 6451 6452 return 0; 6453 6454 out_free_iocbq: 6455 lpfc_free_iocb_list(phba); 6456 6457 return -ENOMEM; 6458 } 6459 6460 /** 6461 * lpfc_free_sgl_list - Free a given sgl list. 6462 * @phba: pointer to lpfc hba data structure. 6463 * @sglq_list: pointer to the head of sgl list. 6464 * 6465 * This routine is invoked to free a give sgl list and memory. 6466 **/ 6467 void 6468 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) 6469 { 6470 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 6471 6472 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { 6473 list_del(&sglq_entry->list); 6474 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 6475 kfree(sglq_entry); 6476 } 6477 } 6478 6479 /** 6480 * lpfc_free_els_sgl_list - Free els sgl list. 6481 * @phba: pointer to lpfc hba data structure. 6482 * 6483 * This routine is invoked to free the driver's els sgl list and memory. 6484 **/ 6485 static void 6486 lpfc_free_els_sgl_list(struct lpfc_hba *phba) 6487 { 6488 LIST_HEAD(sglq_list); 6489 6490 /* Retrieve all els sgls from driver list */ 6491 spin_lock_irq(&phba->hbalock); 6492 spin_lock(&phba->sli4_hba.sgl_list_lock); 6493 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list); 6494 spin_unlock(&phba->sli4_hba.sgl_list_lock); 6495 spin_unlock_irq(&phba->hbalock); 6496 6497 /* Now free the sgl list */ 6498 lpfc_free_sgl_list(phba, &sglq_list); 6499 } 6500 6501 /** 6502 * lpfc_free_nvmet_sgl_list - Free nvmet sgl list. 6503 * @phba: pointer to lpfc hba data structure. 6504 * 6505 * This routine is invoked to free the driver's nvmet sgl list and memory. 6506 **/ 6507 static void 6508 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba) 6509 { 6510 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 6511 LIST_HEAD(sglq_list); 6512 6513 /* Retrieve all nvmet sgls from driver list */ 6514 spin_lock_irq(&phba->hbalock); 6515 spin_lock(&phba->sli4_hba.sgl_list_lock); 6516 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list); 6517 spin_unlock(&phba->sli4_hba.sgl_list_lock); 6518 spin_unlock_irq(&phba->hbalock); 6519 6520 /* Now free the sgl list */ 6521 list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) { 6522 list_del(&sglq_entry->list); 6523 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys); 6524 kfree(sglq_entry); 6525 } 6526 6527 /* Update the nvmet_xri_cnt to reflect no current sgls. 6528 * The next initialization cycle sets the count and allocates 6529 * the sgls over again. 6530 */ 6531 phba->sli4_hba.nvmet_xri_cnt = 0; 6532 } 6533 6534 /** 6535 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 6536 * @phba: pointer to lpfc hba data structure. 6537 * 6538 * This routine is invoked to allocate the driver's active sgl memory. 6539 * This array will hold the sglq_entry's for active IOs. 6540 **/ 6541 static int 6542 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 6543 { 6544 int size; 6545 size = sizeof(struct lpfc_sglq *); 6546 size *= phba->sli4_hba.max_cfg_param.max_xri; 6547 6548 phba->sli4_hba.lpfc_sglq_active_list = 6549 kzalloc(size, GFP_KERNEL); 6550 if (!phba->sli4_hba.lpfc_sglq_active_list) 6551 return -ENOMEM; 6552 return 0; 6553 } 6554 6555 /** 6556 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 6557 * @phba: pointer to lpfc hba data structure. 6558 * 6559 * This routine is invoked to walk through the array of active sglq entries 6560 * and free all of the resources. 6561 * This is just a place holder for now. 6562 **/ 6563 static void 6564 lpfc_free_active_sgl(struct lpfc_hba *phba) 6565 { 6566 kfree(phba->sli4_hba.lpfc_sglq_active_list); 6567 } 6568 6569 /** 6570 * lpfc_init_sgl_list - Allocate and initialize sgl list. 6571 * @phba: pointer to lpfc hba data structure. 6572 * 6573 * This routine is invoked to allocate and initizlize the driver's sgl 6574 * list and set up the sgl xritag tag array accordingly. 6575 * 6576 **/ 6577 static void 6578 lpfc_init_sgl_list(struct lpfc_hba *phba) 6579 { 6580 /* Initialize and populate the sglq list per host/VF. */ 6581 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list); 6582 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 6583 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list); 6584 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 6585 6586 /* els xri-sgl book keeping */ 6587 phba->sli4_hba.els_xri_cnt = 0; 6588 6589 /* scsi xri-buffer book keeping */ 6590 phba->sli4_hba.scsi_xri_cnt = 0; 6591 6592 /* nvme xri-buffer book keeping */ 6593 phba->sli4_hba.nvme_xri_cnt = 0; 6594 } 6595 6596 /** 6597 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 6598 * @phba: pointer to lpfc hba data structure. 6599 * 6600 * This routine is invoked to post rpi header templates to the 6601 * port for those SLI4 ports that do not support extents. This routine 6602 * posts a PAGE_SIZE memory region to the port to hold up to 6603 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 6604 * and should be called only when interrupts are disabled. 6605 * 6606 * Return codes 6607 * 0 - successful 6608 * -ERROR - otherwise. 6609 **/ 6610 int 6611 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 6612 { 6613 int rc = 0; 6614 struct lpfc_rpi_hdr *rpi_hdr; 6615 6616 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 6617 if (!phba->sli4_hba.rpi_hdrs_in_use) 6618 return rc; 6619 if (phba->sli4_hba.extents_in_use) 6620 return -EIO; 6621 6622 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 6623 if (!rpi_hdr) { 6624 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 6625 "0391 Error during rpi post operation\n"); 6626 lpfc_sli4_remove_rpis(phba); 6627 rc = -ENODEV; 6628 } 6629 6630 return rc; 6631 } 6632 6633 /** 6634 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 6635 * @phba: pointer to lpfc hba data structure. 6636 * 6637 * This routine is invoked to allocate a single 4KB memory region to 6638 * support rpis and stores them in the phba. This single region 6639 * provides support for up to 64 rpis. The region is used globally 6640 * by the device. 6641 * 6642 * Returns: 6643 * A valid rpi hdr on success. 6644 * A NULL pointer on any failure. 6645 **/ 6646 struct lpfc_rpi_hdr * 6647 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 6648 { 6649 uint16_t rpi_limit, curr_rpi_range; 6650 struct lpfc_dmabuf *dmabuf; 6651 struct lpfc_rpi_hdr *rpi_hdr; 6652 6653 /* 6654 * If the SLI4 port supports extents, posting the rpi header isn't 6655 * required. Set the expected maximum count and let the actual value 6656 * get set when extents are fully allocated. 6657 */ 6658 if (!phba->sli4_hba.rpi_hdrs_in_use) 6659 return NULL; 6660 if (phba->sli4_hba.extents_in_use) 6661 return NULL; 6662 6663 /* The limit on the logical index is just the max_rpi count. */ 6664 rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi; 6665 6666 spin_lock_irq(&phba->hbalock); 6667 /* 6668 * Establish the starting RPI in this header block. The starting 6669 * rpi is normalized to a zero base because the physical rpi is 6670 * port based. 6671 */ 6672 curr_rpi_range = phba->sli4_hba.next_rpi; 6673 spin_unlock_irq(&phba->hbalock); 6674 6675 /* Reached full RPI range */ 6676 if (curr_rpi_range == rpi_limit) 6677 return NULL; 6678 6679 /* 6680 * First allocate the protocol header region for the port. The 6681 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 6682 */ 6683 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 6684 if (!dmabuf) 6685 return NULL; 6686 6687 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, 6688 LPFC_HDR_TEMPLATE_SIZE, 6689 &dmabuf->phys, GFP_KERNEL); 6690 if (!dmabuf->virt) { 6691 rpi_hdr = NULL; 6692 goto err_free_dmabuf; 6693 } 6694 6695 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 6696 rpi_hdr = NULL; 6697 goto err_free_coherent; 6698 } 6699 6700 /* Save the rpi header data for cleanup later. */ 6701 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 6702 if (!rpi_hdr) 6703 goto err_free_coherent; 6704 6705 rpi_hdr->dmabuf = dmabuf; 6706 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 6707 rpi_hdr->page_count = 1; 6708 spin_lock_irq(&phba->hbalock); 6709 6710 /* The rpi_hdr stores the logical index only. */ 6711 rpi_hdr->start_rpi = curr_rpi_range; 6712 rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT; 6713 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 6714 6715 spin_unlock_irq(&phba->hbalock); 6716 return rpi_hdr; 6717 6718 err_free_coherent: 6719 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 6720 dmabuf->virt, dmabuf->phys); 6721 err_free_dmabuf: 6722 kfree(dmabuf); 6723 return NULL; 6724 } 6725 6726 /** 6727 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 6728 * @phba: pointer to lpfc hba data structure. 6729 * 6730 * This routine is invoked to remove all memory resources allocated 6731 * to support rpis for SLI4 ports not supporting extents. This routine 6732 * presumes the caller has released all rpis consumed by fabric or port 6733 * logins and is prepared to have the header pages removed. 6734 **/ 6735 void 6736 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 6737 { 6738 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 6739 6740 if (!phba->sli4_hba.rpi_hdrs_in_use) 6741 goto exit; 6742 6743 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 6744 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 6745 list_del(&rpi_hdr->list); 6746 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 6747 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 6748 kfree(rpi_hdr->dmabuf); 6749 kfree(rpi_hdr); 6750 } 6751 exit: 6752 /* There are no rpis available to the port now. */ 6753 phba->sli4_hba.next_rpi = 0; 6754 } 6755 6756 /** 6757 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 6758 * @pdev: pointer to pci device data structure. 6759 * 6760 * This routine is invoked to allocate the driver hba data structure for an 6761 * HBA device. If the allocation is successful, the phba reference to the 6762 * PCI device data structure is set. 6763 * 6764 * Return codes 6765 * pointer to @phba - successful 6766 * NULL - error 6767 **/ 6768 static struct lpfc_hba * 6769 lpfc_hba_alloc(struct pci_dev *pdev) 6770 { 6771 struct lpfc_hba *phba; 6772 6773 /* Allocate memory for HBA structure */ 6774 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 6775 if (!phba) { 6776 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 6777 return NULL; 6778 } 6779 6780 /* Set reference to PCI device in HBA structure */ 6781 phba->pcidev = pdev; 6782 6783 /* Assign an unused board number */ 6784 phba->brd_no = lpfc_get_instance(); 6785 if (phba->brd_no < 0) { 6786 kfree(phba); 6787 return NULL; 6788 } 6789 phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL; 6790 6791 spin_lock_init(&phba->ct_ev_lock); 6792 INIT_LIST_HEAD(&phba->ct_ev_waiters); 6793 6794 return phba; 6795 } 6796 6797 /** 6798 * lpfc_hba_free - Free driver hba data structure with a device. 6799 * @phba: pointer to lpfc hba data structure. 6800 * 6801 * This routine is invoked to free the driver hba data structure with an 6802 * HBA device. 6803 **/ 6804 static void 6805 lpfc_hba_free(struct lpfc_hba *phba) 6806 { 6807 /* Release the driver assigned board number */ 6808 idr_remove(&lpfc_hba_index, phba->brd_no); 6809 6810 /* Free memory allocated with sli3 rings */ 6811 kfree(phba->sli.sli3_ring); 6812 phba->sli.sli3_ring = NULL; 6813 6814 kfree(phba); 6815 return; 6816 } 6817 6818 /** 6819 * lpfc_create_shost - Create hba physical port with associated scsi host. 6820 * @phba: pointer to lpfc hba data structure. 6821 * 6822 * This routine is invoked to create HBA physical port and associate a SCSI 6823 * host with it. 6824 * 6825 * Return codes 6826 * 0 - successful 6827 * other values - error 6828 **/ 6829 static int 6830 lpfc_create_shost(struct lpfc_hba *phba) 6831 { 6832 struct lpfc_vport *vport; 6833 struct Scsi_Host *shost; 6834 6835 /* Initialize HBA FC structure */ 6836 phba->fc_edtov = FF_DEF_EDTOV; 6837 phba->fc_ratov = FF_DEF_RATOV; 6838 phba->fc_altov = FF_DEF_ALTOV; 6839 phba->fc_arbtov = FF_DEF_ARBTOV; 6840 6841 atomic_set(&phba->sdev_cnt, 0); 6842 atomic_set(&phba->fc4ScsiInputRequests, 0); 6843 atomic_set(&phba->fc4ScsiOutputRequests, 0); 6844 atomic_set(&phba->fc4ScsiControlRequests, 0); 6845 atomic_set(&phba->fc4ScsiIoCmpls, 0); 6846 atomic_set(&phba->fc4NvmeInputRequests, 0); 6847 atomic_set(&phba->fc4NvmeOutputRequests, 0); 6848 atomic_set(&phba->fc4NvmeControlRequests, 0); 6849 atomic_set(&phba->fc4NvmeIoCmpls, 0); 6850 atomic_set(&phba->fc4NvmeLsRequests, 0); 6851 atomic_set(&phba->fc4NvmeLsCmpls, 0); 6852 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 6853 if (!vport) 6854 return -ENODEV; 6855 6856 shost = lpfc_shost_from_vport(vport); 6857 phba->pport = vport; 6858 6859 if (phba->nvmet_support) { 6860 /* Only 1 vport (pport) will support NVME target */ 6861 if (phba->txrdy_payload_pool == NULL) { 6862 phba->txrdy_payload_pool = dma_pool_create( 6863 "txrdy_pool", &phba->pcidev->dev, 6864 TXRDY_PAYLOAD_LEN, 16, 0); 6865 if (phba->txrdy_payload_pool) { 6866 phba->targetport = NULL; 6867 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME; 6868 lpfc_printf_log(phba, KERN_INFO, 6869 LOG_INIT | LOG_NVME_DISC, 6870 "6076 NVME Target Found\n"); 6871 } 6872 } 6873 } 6874 6875 lpfc_debugfs_initialize(vport); 6876 /* Put reference to SCSI host to driver's device private data */ 6877 pci_set_drvdata(phba->pcidev, shost); 6878 6879 /* 6880 * At this point we are fully registered with PSA. In addition, 6881 * any initial discovery should be completed. 6882 */ 6883 vport->load_flag |= FC_ALLOW_FDMI; 6884 if (phba->cfg_enable_SmartSAN || 6885 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) { 6886 6887 /* Setup appropriate attribute masks */ 6888 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR; 6889 if (phba->cfg_enable_SmartSAN) 6890 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR; 6891 else 6892 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR; 6893 } 6894 return 0; 6895 } 6896 6897 /** 6898 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 6899 * @phba: pointer to lpfc hba data structure. 6900 * 6901 * This routine is invoked to destroy HBA physical port and the associated 6902 * SCSI host. 6903 **/ 6904 static void 6905 lpfc_destroy_shost(struct lpfc_hba *phba) 6906 { 6907 struct lpfc_vport *vport = phba->pport; 6908 6909 /* Destroy physical port that associated with the SCSI host */ 6910 destroy_port(vport); 6911 6912 return; 6913 } 6914 6915 /** 6916 * lpfc_setup_bg - Setup Block guard structures and debug areas. 6917 * @phba: pointer to lpfc hba data structure. 6918 * @shost: the shost to be used to detect Block guard settings. 6919 * 6920 * This routine sets up the local Block guard protocol settings for @shost. 6921 * This routine also allocates memory for debugging bg buffers. 6922 **/ 6923 static void 6924 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 6925 { 6926 uint32_t old_mask; 6927 uint32_t old_guard; 6928 6929 int pagecnt = 10; 6930 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 6931 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6932 "1478 Registering BlockGuard with the " 6933 "SCSI layer\n"); 6934 6935 old_mask = phba->cfg_prot_mask; 6936 old_guard = phba->cfg_prot_guard; 6937 6938 /* Only allow supported values */ 6939 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | 6940 SHOST_DIX_TYPE0_PROTECTION | 6941 SHOST_DIX_TYPE1_PROTECTION); 6942 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP | 6943 SHOST_DIX_GUARD_CRC); 6944 6945 /* DIF Type 1 protection for profiles AST1/C1 is end to end */ 6946 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION) 6947 phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; 6948 6949 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 6950 if ((old_mask != phba->cfg_prot_mask) || 6951 (old_guard != phba->cfg_prot_guard)) 6952 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6953 "1475 Registering BlockGuard with the " 6954 "SCSI layer: mask %d guard %d\n", 6955 phba->cfg_prot_mask, 6956 phba->cfg_prot_guard); 6957 6958 scsi_host_set_prot(shost, phba->cfg_prot_mask); 6959 scsi_host_set_guard(shost, phba->cfg_prot_guard); 6960 } else 6961 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6962 "1479 Not Registering BlockGuard with the SCSI " 6963 "layer, Bad protection parameters: %d %d\n", 6964 old_mask, old_guard); 6965 } 6966 6967 if (!_dump_buf_data) { 6968 while (pagecnt) { 6969 spin_lock_init(&_dump_buf_lock); 6970 _dump_buf_data = 6971 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 6972 if (_dump_buf_data) { 6973 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6974 "9043 BLKGRD: allocated %d pages for " 6975 "_dump_buf_data at 0x%p\n", 6976 (1 << pagecnt), _dump_buf_data); 6977 _dump_buf_data_order = pagecnt; 6978 memset(_dump_buf_data, 0, 6979 ((1 << PAGE_SHIFT) << pagecnt)); 6980 break; 6981 } else 6982 --pagecnt; 6983 } 6984 if (!_dump_buf_data_order) 6985 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6986 "9044 BLKGRD: ERROR unable to allocate " 6987 "memory for hexdump\n"); 6988 } else 6989 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6990 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 6991 "\n", _dump_buf_data); 6992 if (!_dump_buf_dif) { 6993 while (pagecnt) { 6994 _dump_buf_dif = 6995 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 6996 if (_dump_buf_dif) { 6997 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6998 "9046 BLKGRD: allocated %d pages for " 6999 "_dump_buf_dif at 0x%p\n", 7000 (1 << pagecnt), _dump_buf_dif); 7001 _dump_buf_dif_order = pagecnt; 7002 memset(_dump_buf_dif, 0, 7003 ((1 << PAGE_SHIFT) << pagecnt)); 7004 break; 7005 } else 7006 --pagecnt; 7007 } 7008 if (!_dump_buf_dif_order) 7009 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7010 "9047 BLKGRD: ERROR unable to allocate " 7011 "memory for hexdump\n"); 7012 } else 7013 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7014 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 7015 _dump_buf_dif); 7016 } 7017 7018 /** 7019 * lpfc_post_init_setup - Perform necessary device post initialization setup. 7020 * @phba: pointer to lpfc hba data structure. 7021 * 7022 * This routine is invoked to perform all the necessary post initialization 7023 * setup for the device. 7024 **/ 7025 static void 7026 lpfc_post_init_setup(struct lpfc_hba *phba) 7027 { 7028 struct Scsi_Host *shost; 7029 struct lpfc_adapter_event_header adapter_event; 7030 7031 /* Get the default values for Model Name and Description */ 7032 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 7033 7034 /* 7035 * hba setup may have changed the hba_queue_depth so we need to 7036 * adjust the value of can_queue. 7037 */ 7038 shost = pci_get_drvdata(phba->pcidev); 7039 shost->can_queue = phba->cfg_hba_queue_depth - 10; 7040 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 7041 lpfc_setup_bg(phba, shost); 7042 7043 lpfc_host_attrib_init(shost); 7044 7045 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 7046 spin_lock_irq(shost->host_lock); 7047 lpfc_poll_start_timer(phba); 7048 spin_unlock_irq(shost->host_lock); 7049 } 7050 7051 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7052 "0428 Perform SCSI scan\n"); 7053 /* Send board arrival event to upper layer */ 7054 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 7055 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 7056 fc_host_post_vendor_event(shost, fc_get_event_number(), 7057 sizeof(adapter_event), 7058 (char *) &adapter_event, 7059 LPFC_NL_VENDOR_ID); 7060 return; 7061 } 7062 7063 /** 7064 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 7065 * @phba: pointer to lpfc hba data structure. 7066 * 7067 * This routine is invoked to set up the PCI device memory space for device 7068 * with SLI-3 interface spec. 7069 * 7070 * Return codes 7071 * 0 - successful 7072 * other values - error 7073 **/ 7074 static int 7075 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 7076 { 7077 struct pci_dev *pdev; 7078 unsigned long bar0map_len, bar2map_len; 7079 int i, hbq_count; 7080 void *ptr; 7081 int error = -ENODEV; 7082 7083 /* Obtain PCI device reference */ 7084 if (!phba->pcidev) 7085 return error; 7086 else 7087 pdev = phba->pcidev; 7088 7089 /* Set the device DMA mask size */ 7090 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 7091 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 7092 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 7093 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 7094 return error; 7095 } 7096 } 7097 7098 /* Get the bus address of Bar0 and Bar2 and the number of bytes 7099 * required by each mapping. 7100 */ 7101 phba->pci_bar0_map = pci_resource_start(pdev, 0); 7102 bar0map_len = pci_resource_len(pdev, 0); 7103 7104 phba->pci_bar2_map = pci_resource_start(pdev, 2); 7105 bar2map_len = pci_resource_len(pdev, 2); 7106 7107 /* Map HBA SLIM to a kernel virtual address. */ 7108 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 7109 if (!phba->slim_memmap_p) { 7110 dev_printk(KERN_ERR, &pdev->dev, 7111 "ioremap failed for SLIM memory.\n"); 7112 goto out; 7113 } 7114 7115 /* Map HBA Control Registers to a kernel virtual address. */ 7116 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 7117 if (!phba->ctrl_regs_memmap_p) { 7118 dev_printk(KERN_ERR, &pdev->dev, 7119 "ioremap failed for HBA control registers.\n"); 7120 goto out_iounmap_slim; 7121 } 7122 7123 /* Allocate memory for SLI-2 structures */ 7124 phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7125 &phba->slim2p.phys, GFP_KERNEL); 7126 if (!phba->slim2p.virt) 7127 goto out_iounmap; 7128 7129 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 7130 phba->mbox_ext = (phba->slim2p.virt + 7131 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 7132 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 7133 phba->IOCBs = (phba->slim2p.virt + 7134 offsetof(struct lpfc_sli2_slim, IOCBs)); 7135 7136 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 7137 lpfc_sli_hbq_size(), 7138 &phba->hbqslimp.phys, 7139 GFP_KERNEL); 7140 if (!phba->hbqslimp.virt) 7141 goto out_free_slim; 7142 7143 hbq_count = lpfc_sli_hbq_count(); 7144 ptr = phba->hbqslimp.virt; 7145 for (i = 0; i < hbq_count; ++i) { 7146 phba->hbqs[i].hbq_virt = ptr; 7147 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 7148 ptr += (lpfc_hbq_defs[i]->entry_count * 7149 sizeof(struct lpfc_hbq_entry)); 7150 } 7151 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 7152 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 7153 7154 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 7155 7156 phba->MBslimaddr = phba->slim_memmap_p; 7157 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 7158 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 7159 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 7160 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 7161 7162 return 0; 7163 7164 out_free_slim: 7165 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7166 phba->slim2p.virt, phba->slim2p.phys); 7167 out_iounmap: 7168 iounmap(phba->ctrl_regs_memmap_p); 7169 out_iounmap_slim: 7170 iounmap(phba->slim_memmap_p); 7171 out: 7172 return error; 7173 } 7174 7175 /** 7176 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 7177 * @phba: pointer to lpfc hba data structure. 7178 * 7179 * This routine is invoked to unset the PCI device memory space for device 7180 * with SLI-3 interface spec. 7181 **/ 7182 static void 7183 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 7184 { 7185 struct pci_dev *pdev; 7186 7187 /* Obtain PCI device reference */ 7188 if (!phba->pcidev) 7189 return; 7190 else 7191 pdev = phba->pcidev; 7192 7193 /* Free coherent DMA memory allocated */ 7194 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 7195 phba->hbqslimp.virt, phba->hbqslimp.phys); 7196 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7197 phba->slim2p.virt, phba->slim2p.phys); 7198 7199 /* I/O memory unmap */ 7200 iounmap(phba->ctrl_regs_memmap_p); 7201 iounmap(phba->slim_memmap_p); 7202 7203 return; 7204 } 7205 7206 /** 7207 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 7208 * @phba: pointer to lpfc hba data structure. 7209 * 7210 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 7211 * done and check status. 7212 * 7213 * Return 0 if successful, otherwise -ENODEV. 7214 **/ 7215 int 7216 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 7217 { 7218 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 7219 struct lpfc_register reg_data; 7220 int i, port_error = 0; 7221 uint32_t if_type; 7222 7223 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 7224 memset(®_data, 0, sizeof(reg_data)); 7225 if (!phba->sli4_hba.PSMPHRregaddr) 7226 return -ENODEV; 7227 7228 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 7229 for (i = 0; i < 3000; i++) { 7230 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 7231 &portsmphr_reg.word0) || 7232 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 7233 /* Port has a fatal POST error, break out */ 7234 port_error = -ENODEV; 7235 break; 7236 } 7237 if (LPFC_POST_STAGE_PORT_READY == 7238 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 7239 break; 7240 msleep(10); 7241 } 7242 7243 /* 7244 * If there was a port error during POST, then don't proceed with 7245 * other register reads as the data may not be valid. Just exit. 7246 */ 7247 if (port_error) { 7248 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7249 "1408 Port Failed POST - portsmphr=0x%x, " 7250 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 7251 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 7252 portsmphr_reg.word0, 7253 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 7254 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 7255 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 7256 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 7257 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 7258 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 7259 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 7260 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 7261 } else { 7262 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7263 "2534 Device Info: SLIFamily=0x%x, " 7264 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 7265 "SLIHint_2=0x%x, FT=0x%x\n", 7266 bf_get(lpfc_sli_intf_sli_family, 7267 &phba->sli4_hba.sli_intf), 7268 bf_get(lpfc_sli_intf_slirev, 7269 &phba->sli4_hba.sli_intf), 7270 bf_get(lpfc_sli_intf_if_type, 7271 &phba->sli4_hba.sli_intf), 7272 bf_get(lpfc_sli_intf_sli_hint1, 7273 &phba->sli4_hba.sli_intf), 7274 bf_get(lpfc_sli_intf_sli_hint2, 7275 &phba->sli4_hba.sli_intf), 7276 bf_get(lpfc_sli_intf_func_type, 7277 &phba->sli4_hba.sli_intf)); 7278 /* 7279 * Check for other Port errors during the initialization 7280 * process. Fail the load if the port did not come up 7281 * correctly. 7282 */ 7283 if_type = bf_get(lpfc_sli_intf_if_type, 7284 &phba->sli4_hba.sli_intf); 7285 switch (if_type) { 7286 case LPFC_SLI_INTF_IF_TYPE_0: 7287 phba->sli4_hba.ue_mask_lo = 7288 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 7289 phba->sli4_hba.ue_mask_hi = 7290 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 7291 uerrlo_reg.word0 = 7292 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 7293 uerrhi_reg.word0 = 7294 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 7295 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 7296 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 7297 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7298 "1422 Unrecoverable Error " 7299 "Detected during POST " 7300 "uerr_lo_reg=0x%x, " 7301 "uerr_hi_reg=0x%x, " 7302 "ue_mask_lo_reg=0x%x, " 7303 "ue_mask_hi_reg=0x%x\n", 7304 uerrlo_reg.word0, 7305 uerrhi_reg.word0, 7306 phba->sli4_hba.ue_mask_lo, 7307 phba->sli4_hba.ue_mask_hi); 7308 port_error = -ENODEV; 7309 } 7310 break; 7311 case LPFC_SLI_INTF_IF_TYPE_2: 7312 /* Final checks. The port status should be clean. */ 7313 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 7314 ®_data.word0) || 7315 (bf_get(lpfc_sliport_status_err, ®_data) && 7316 !bf_get(lpfc_sliport_status_rn, ®_data))) { 7317 phba->work_status[0] = 7318 readl(phba->sli4_hba.u.if_type2. 7319 ERR1regaddr); 7320 phba->work_status[1] = 7321 readl(phba->sli4_hba.u.if_type2. 7322 ERR2regaddr); 7323 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7324 "2888 Unrecoverable port error " 7325 "following POST: port status reg " 7326 "0x%x, port_smphr reg 0x%x, " 7327 "error 1=0x%x, error 2=0x%x\n", 7328 reg_data.word0, 7329 portsmphr_reg.word0, 7330 phba->work_status[0], 7331 phba->work_status[1]); 7332 port_error = -ENODEV; 7333 } 7334 break; 7335 case LPFC_SLI_INTF_IF_TYPE_1: 7336 default: 7337 break; 7338 } 7339 } 7340 return port_error; 7341 } 7342 7343 /** 7344 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 7345 * @phba: pointer to lpfc hba data structure. 7346 * @if_type: The SLI4 interface type getting configured. 7347 * 7348 * This routine is invoked to set up SLI4 BAR0 PCI config space register 7349 * memory map. 7350 **/ 7351 static void 7352 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 7353 { 7354 switch (if_type) { 7355 case LPFC_SLI_INTF_IF_TYPE_0: 7356 phba->sli4_hba.u.if_type0.UERRLOregaddr = 7357 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 7358 phba->sli4_hba.u.if_type0.UERRHIregaddr = 7359 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 7360 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 7361 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 7362 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 7363 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 7364 phba->sli4_hba.SLIINTFregaddr = 7365 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 7366 break; 7367 case LPFC_SLI_INTF_IF_TYPE_2: 7368 phba->sli4_hba.u.if_type2.EQDregaddr = 7369 phba->sli4_hba.conf_regs_memmap_p + 7370 LPFC_CTL_PORT_EQ_DELAY_OFFSET; 7371 phba->sli4_hba.u.if_type2.ERR1regaddr = 7372 phba->sli4_hba.conf_regs_memmap_p + 7373 LPFC_CTL_PORT_ER1_OFFSET; 7374 phba->sli4_hba.u.if_type2.ERR2regaddr = 7375 phba->sli4_hba.conf_regs_memmap_p + 7376 LPFC_CTL_PORT_ER2_OFFSET; 7377 phba->sli4_hba.u.if_type2.CTRLregaddr = 7378 phba->sli4_hba.conf_regs_memmap_p + 7379 LPFC_CTL_PORT_CTL_OFFSET; 7380 phba->sli4_hba.u.if_type2.STATUSregaddr = 7381 phba->sli4_hba.conf_regs_memmap_p + 7382 LPFC_CTL_PORT_STA_OFFSET; 7383 phba->sli4_hba.SLIINTFregaddr = 7384 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 7385 phba->sli4_hba.PSMPHRregaddr = 7386 phba->sli4_hba.conf_regs_memmap_p + 7387 LPFC_CTL_PORT_SEM_OFFSET; 7388 phba->sli4_hba.RQDBregaddr = 7389 phba->sli4_hba.conf_regs_memmap_p + 7390 LPFC_ULP0_RQ_DOORBELL; 7391 phba->sli4_hba.WQDBregaddr = 7392 phba->sli4_hba.conf_regs_memmap_p + 7393 LPFC_ULP0_WQ_DOORBELL; 7394 phba->sli4_hba.EQCQDBregaddr = 7395 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 7396 phba->sli4_hba.MQDBregaddr = 7397 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 7398 phba->sli4_hba.BMBXregaddr = 7399 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 7400 break; 7401 case LPFC_SLI_INTF_IF_TYPE_1: 7402 default: 7403 dev_printk(KERN_ERR, &phba->pcidev->dev, 7404 "FATAL - unsupported SLI4 interface type - %d\n", 7405 if_type); 7406 break; 7407 } 7408 } 7409 7410 /** 7411 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 7412 * @phba: pointer to lpfc hba data structure. 7413 * 7414 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 7415 * memory map. 7416 **/ 7417 static void 7418 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 7419 { 7420 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7421 LPFC_SLIPORT_IF0_SMPHR; 7422 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7423 LPFC_HST_ISR0; 7424 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7425 LPFC_HST_IMR0; 7426 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7427 LPFC_HST_ISCR0; 7428 } 7429 7430 /** 7431 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 7432 * @phba: pointer to lpfc hba data structure. 7433 * @vf: virtual function number 7434 * 7435 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 7436 * based on the given viftual function number, @vf. 7437 * 7438 * Return 0 if successful, otherwise -ENODEV. 7439 **/ 7440 static int 7441 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 7442 { 7443 if (vf > LPFC_VIR_FUNC_MAX) 7444 return -ENODEV; 7445 7446 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7447 vf * LPFC_VFR_PAGE_SIZE + 7448 LPFC_ULP0_RQ_DOORBELL); 7449 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7450 vf * LPFC_VFR_PAGE_SIZE + 7451 LPFC_ULP0_WQ_DOORBELL); 7452 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7453 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 7454 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7455 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 7456 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7457 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 7458 return 0; 7459 } 7460 7461 /** 7462 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 7463 * @phba: pointer to lpfc hba data structure. 7464 * 7465 * This routine is invoked to create the bootstrap mailbox 7466 * region consistent with the SLI-4 interface spec. This 7467 * routine allocates all memory necessary to communicate 7468 * mailbox commands to the port and sets up all alignment 7469 * needs. No locks are expected to be held when calling 7470 * this routine. 7471 * 7472 * Return codes 7473 * 0 - successful 7474 * -ENOMEM - could not allocated memory. 7475 **/ 7476 static int 7477 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 7478 { 7479 uint32_t bmbx_size; 7480 struct lpfc_dmabuf *dmabuf; 7481 struct dma_address *dma_address; 7482 uint32_t pa_addr; 7483 uint64_t phys_addr; 7484 7485 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 7486 if (!dmabuf) 7487 return -ENOMEM; 7488 7489 /* 7490 * The bootstrap mailbox region is comprised of 2 parts 7491 * plus an alignment restriction of 16 bytes. 7492 */ 7493 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 7494 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size, 7495 &dmabuf->phys, GFP_KERNEL); 7496 if (!dmabuf->virt) { 7497 kfree(dmabuf); 7498 return -ENOMEM; 7499 } 7500 7501 /* 7502 * Initialize the bootstrap mailbox pointers now so that the register 7503 * operations are simple later. The mailbox dma address is required 7504 * to be 16-byte aligned. Also align the virtual memory as each 7505 * maibox is copied into the bmbx mailbox region before issuing the 7506 * command to the port. 7507 */ 7508 phba->sli4_hba.bmbx.dmabuf = dmabuf; 7509 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 7510 7511 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 7512 LPFC_ALIGN_16_BYTE); 7513 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 7514 LPFC_ALIGN_16_BYTE); 7515 7516 /* 7517 * Set the high and low physical addresses now. The SLI4 alignment 7518 * requirement is 16 bytes and the mailbox is posted to the port 7519 * as two 30-bit addresses. The other data is a bit marking whether 7520 * the 30-bit address is the high or low address. 7521 * Upcast bmbx aphys to 64bits so shift instruction compiles 7522 * clean on 32 bit machines. 7523 */ 7524 dma_address = &phba->sli4_hba.bmbx.dma_address; 7525 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 7526 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 7527 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 7528 LPFC_BMBX_BIT1_ADDR_HI); 7529 7530 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 7531 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 7532 LPFC_BMBX_BIT1_ADDR_LO); 7533 return 0; 7534 } 7535 7536 /** 7537 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 7538 * @phba: pointer to lpfc hba data structure. 7539 * 7540 * This routine is invoked to teardown the bootstrap mailbox 7541 * region and release all host resources. This routine requires 7542 * the caller to ensure all mailbox commands recovered, no 7543 * additional mailbox comands are sent, and interrupts are disabled 7544 * before calling this routine. 7545 * 7546 **/ 7547 static void 7548 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 7549 { 7550 dma_free_coherent(&phba->pcidev->dev, 7551 phba->sli4_hba.bmbx.bmbx_size, 7552 phba->sli4_hba.bmbx.dmabuf->virt, 7553 phba->sli4_hba.bmbx.dmabuf->phys); 7554 7555 kfree(phba->sli4_hba.bmbx.dmabuf); 7556 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 7557 } 7558 7559 /** 7560 * lpfc_sli4_read_config - Get the config parameters. 7561 * @phba: pointer to lpfc hba data structure. 7562 * 7563 * This routine is invoked to read the configuration parameters from the HBA. 7564 * The configuration parameters are used to set the base and maximum values 7565 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 7566 * allocation for the port. 7567 * 7568 * Return codes 7569 * 0 - successful 7570 * -ENOMEM - No available memory 7571 * -EIO - The mailbox failed to complete successfully. 7572 **/ 7573 int 7574 lpfc_sli4_read_config(struct lpfc_hba *phba) 7575 { 7576 LPFC_MBOXQ_t *pmb; 7577 struct lpfc_mbx_read_config *rd_config; 7578 union lpfc_sli4_cfg_shdr *shdr; 7579 uint32_t shdr_status, shdr_add_status; 7580 struct lpfc_mbx_get_func_cfg *get_func_cfg; 7581 struct lpfc_rsrc_desc_fcfcoe *desc; 7582 char *pdesc_0; 7583 uint16_t forced_link_speed; 7584 uint32_t if_type; 7585 int length, i, rc = 0, rc2; 7586 7587 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7588 if (!pmb) { 7589 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7590 "2011 Unable to allocate memory for issuing " 7591 "SLI_CONFIG_SPECIAL mailbox command\n"); 7592 return -ENOMEM; 7593 } 7594 7595 lpfc_read_config(phba, pmb); 7596 7597 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7598 if (rc != MBX_SUCCESS) { 7599 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7600 "2012 Mailbox failed , mbxCmd x%x " 7601 "READ_CONFIG, mbxStatus x%x\n", 7602 bf_get(lpfc_mqe_command, &pmb->u.mqe), 7603 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 7604 rc = -EIO; 7605 } else { 7606 rd_config = &pmb->u.mqe.un.rd_config; 7607 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 7608 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 7609 phba->sli4_hba.lnk_info.lnk_tp = 7610 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 7611 phba->sli4_hba.lnk_info.lnk_no = 7612 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 7613 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7614 "3081 lnk_type:%d, lnk_numb:%d\n", 7615 phba->sli4_hba.lnk_info.lnk_tp, 7616 phba->sli4_hba.lnk_info.lnk_no); 7617 } else 7618 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 7619 "3082 Mailbox (x%x) returned ldv:x0\n", 7620 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 7621 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) { 7622 phba->bbcredit_support = 1; 7623 phba->sli4_hba.bbscn_params.word0 = rd_config->word8; 7624 } 7625 7626 phba->sli4_hba.extents_in_use = 7627 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 7628 phba->sli4_hba.max_cfg_param.max_xri = 7629 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 7630 phba->sli4_hba.max_cfg_param.xri_base = 7631 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 7632 phba->sli4_hba.max_cfg_param.max_vpi = 7633 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 7634 phba->sli4_hba.max_cfg_param.vpi_base = 7635 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 7636 phba->sli4_hba.max_cfg_param.max_rpi = 7637 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 7638 phba->sli4_hba.max_cfg_param.rpi_base = 7639 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 7640 phba->sli4_hba.max_cfg_param.max_vfi = 7641 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 7642 phba->sli4_hba.max_cfg_param.vfi_base = 7643 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 7644 phba->sli4_hba.max_cfg_param.max_fcfi = 7645 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 7646 phba->sli4_hba.max_cfg_param.max_eq = 7647 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 7648 phba->sli4_hba.max_cfg_param.max_rq = 7649 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 7650 phba->sli4_hba.max_cfg_param.max_wq = 7651 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 7652 phba->sli4_hba.max_cfg_param.max_cq = 7653 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 7654 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 7655 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 7656 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 7657 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 7658 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 7659 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 7660 phba->max_vports = phba->max_vpi; 7661 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7662 "2003 cfg params Extents? %d " 7663 "XRI(B:%d M:%d), " 7664 "VPI(B:%d M:%d) " 7665 "VFI(B:%d M:%d) " 7666 "RPI(B:%d M:%d) " 7667 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n", 7668 phba->sli4_hba.extents_in_use, 7669 phba->sli4_hba.max_cfg_param.xri_base, 7670 phba->sli4_hba.max_cfg_param.max_xri, 7671 phba->sli4_hba.max_cfg_param.vpi_base, 7672 phba->sli4_hba.max_cfg_param.max_vpi, 7673 phba->sli4_hba.max_cfg_param.vfi_base, 7674 phba->sli4_hba.max_cfg_param.max_vfi, 7675 phba->sli4_hba.max_cfg_param.rpi_base, 7676 phba->sli4_hba.max_cfg_param.max_rpi, 7677 phba->sli4_hba.max_cfg_param.max_fcfi, 7678 phba->sli4_hba.max_cfg_param.max_eq, 7679 phba->sli4_hba.max_cfg_param.max_cq, 7680 phba->sli4_hba.max_cfg_param.max_wq, 7681 phba->sli4_hba.max_cfg_param.max_rq); 7682 7683 } 7684 7685 if (rc) 7686 goto read_cfg_out; 7687 7688 /* Update link speed if forced link speed is supported */ 7689 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7690 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7691 forced_link_speed = 7692 bf_get(lpfc_mbx_rd_conf_link_speed, rd_config); 7693 if (forced_link_speed) { 7694 phba->hba_flag |= HBA_FORCED_LINK_SPEED; 7695 7696 switch (forced_link_speed) { 7697 case LINK_SPEED_1G: 7698 phba->cfg_link_speed = 7699 LPFC_USER_LINK_SPEED_1G; 7700 break; 7701 case LINK_SPEED_2G: 7702 phba->cfg_link_speed = 7703 LPFC_USER_LINK_SPEED_2G; 7704 break; 7705 case LINK_SPEED_4G: 7706 phba->cfg_link_speed = 7707 LPFC_USER_LINK_SPEED_4G; 7708 break; 7709 case LINK_SPEED_8G: 7710 phba->cfg_link_speed = 7711 LPFC_USER_LINK_SPEED_8G; 7712 break; 7713 case LINK_SPEED_10G: 7714 phba->cfg_link_speed = 7715 LPFC_USER_LINK_SPEED_10G; 7716 break; 7717 case LINK_SPEED_16G: 7718 phba->cfg_link_speed = 7719 LPFC_USER_LINK_SPEED_16G; 7720 break; 7721 case LINK_SPEED_32G: 7722 phba->cfg_link_speed = 7723 LPFC_USER_LINK_SPEED_32G; 7724 break; 7725 case 0xffff: 7726 phba->cfg_link_speed = 7727 LPFC_USER_LINK_SPEED_AUTO; 7728 break; 7729 default: 7730 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7731 "0047 Unrecognized link " 7732 "speed : %d\n", 7733 forced_link_speed); 7734 phba->cfg_link_speed = 7735 LPFC_USER_LINK_SPEED_AUTO; 7736 } 7737 } 7738 } 7739 7740 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 7741 length = phba->sli4_hba.max_cfg_param.max_xri - 7742 lpfc_sli4_get_els_iocb_cnt(phba); 7743 if (phba->cfg_hba_queue_depth > length) { 7744 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7745 "3361 HBA queue depth changed from %d to %d\n", 7746 phba->cfg_hba_queue_depth, length); 7747 phba->cfg_hba_queue_depth = length; 7748 } 7749 7750 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 7751 LPFC_SLI_INTF_IF_TYPE_2) 7752 goto read_cfg_out; 7753 7754 /* get the pf# and vf# for SLI4 if_type 2 port */ 7755 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 7756 sizeof(struct lpfc_sli4_cfg_mhdr)); 7757 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 7758 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 7759 length, LPFC_SLI4_MBX_EMBED); 7760 7761 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7762 shdr = (union lpfc_sli4_cfg_shdr *) 7763 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 7764 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7765 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 7766 if (rc2 || shdr_status || shdr_add_status) { 7767 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7768 "3026 Mailbox failed , mbxCmd x%x " 7769 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 7770 bf_get(lpfc_mqe_command, &pmb->u.mqe), 7771 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 7772 goto read_cfg_out; 7773 } 7774 7775 /* search for fc_fcoe resrouce descriptor */ 7776 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 7777 7778 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0]; 7779 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0; 7780 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc); 7781 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD) 7782 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH; 7783 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH) 7784 goto read_cfg_out; 7785 7786 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 7787 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i); 7788 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 7789 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) { 7790 phba->sli4_hba.iov.pf_number = 7791 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 7792 phba->sli4_hba.iov.vf_number = 7793 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 7794 break; 7795 } 7796 } 7797 7798 if (i < LPFC_RSRC_DESC_MAX_NUM) 7799 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7800 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 7801 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 7802 phba->sli4_hba.iov.vf_number); 7803 else 7804 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7805 "3028 GET_FUNCTION_CONFIG: failed to find " 7806 "Resrouce Descriptor:x%x\n", 7807 LPFC_RSRC_DESC_TYPE_FCFCOE); 7808 7809 read_cfg_out: 7810 mempool_free(pmb, phba->mbox_mem_pool); 7811 return rc; 7812 } 7813 7814 /** 7815 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 7816 * @phba: pointer to lpfc hba data structure. 7817 * 7818 * This routine is invoked to setup the port-side endian order when 7819 * the port if_type is 0. This routine has no function for other 7820 * if_types. 7821 * 7822 * Return codes 7823 * 0 - successful 7824 * -ENOMEM - No available memory 7825 * -EIO - The mailbox failed to complete successfully. 7826 **/ 7827 static int 7828 lpfc_setup_endian_order(struct lpfc_hba *phba) 7829 { 7830 LPFC_MBOXQ_t *mboxq; 7831 uint32_t if_type, rc = 0; 7832 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 7833 HOST_ENDIAN_HIGH_WORD1}; 7834 7835 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7836 switch (if_type) { 7837 case LPFC_SLI_INTF_IF_TYPE_0: 7838 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7839 GFP_KERNEL); 7840 if (!mboxq) { 7841 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7842 "0492 Unable to allocate memory for " 7843 "issuing SLI_CONFIG_SPECIAL mailbox " 7844 "command\n"); 7845 return -ENOMEM; 7846 } 7847 7848 /* 7849 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 7850 * two words to contain special data values and no other data. 7851 */ 7852 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 7853 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 7854 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7855 if (rc != MBX_SUCCESS) { 7856 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7857 "0493 SLI_CONFIG_SPECIAL mailbox " 7858 "failed with status x%x\n", 7859 rc); 7860 rc = -EIO; 7861 } 7862 mempool_free(mboxq, phba->mbox_mem_pool); 7863 break; 7864 case LPFC_SLI_INTF_IF_TYPE_2: 7865 case LPFC_SLI_INTF_IF_TYPE_1: 7866 default: 7867 break; 7868 } 7869 return rc; 7870 } 7871 7872 /** 7873 * lpfc_sli4_queue_verify - Verify and update EQ counts 7874 * @phba: pointer to lpfc hba data structure. 7875 * 7876 * This routine is invoked to check the user settable queue counts for EQs. 7877 * After this routine is called the counts will be set to valid values that 7878 * adhere to the constraints of the system's interrupt vectors and the port's 7879 * queue resources. 7880 * 7881 * Return codes 7882 * 0 - successful 7883 * -ENOMEM - No available memory 7884 **/ 7885 static int 7886 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 7887 { 7888 int io_channel; 7889 int fof_vectors = phba->cfg_fof ? 1 : 0; 7890 7891 /* 7892 * Sanity check for configured queue parameters against the run-time 7893 * device parameters 7894 */ 7895 7896 /* Sanity check on HBA EQ parameters */ 7897 io_channel = phba->io_channel_irqs; 7898 7899 if (phba->sli4_hba.num_online_cpu < io_channel) { 7900 lpfc_printf_log(phba, 7901 KERN_ERR, LOG_INIT, 7902 "3188 Reducing IO channels to match number of " 7903 "online CPUs: from %d to %d\n", 7904 io_channel, phba->sli4_hba.num_online_cpu); 7905 io_channel = phba->sli4_hba.num_online_cpu; 7906 } 7907 7908 if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) { 7909 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7910 "2575 Reducing IO channels to match number of " 7911 "available EQs: from %d to %d\n", 7912 io_channel, 7913 phba->sli4_hba.max_cfg_param.max_eq); 7914 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors; 7915 } 7916 7917 /* The actual number of FCP / NVME event queues adopted */ 7918 if (io_channel != phba->io_channel_irqs) 7919 phba->io_channel_irqs = io_channel; 7920 if (phba->cfg_fcp_io_channel > io_channel) 7921 phba->cfg_fcp_io_channel = io_channel; 7922 if (phba->cfg_nvme_io_channel > io_channel) 7923 phba->cfg_nvme_io_channel = io_channel; 7924 if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq) 7925 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel; 7926 7927 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7928 "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n", 7929 phba->io_channel_irqs, phba->cfg_fcp_io_channel, 7930 phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq); 7931 7932 /* Get EQ depth from module parameter, fake the default for now */ 7933 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 7934 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 7935 7936 /* Get CQ depth from module parameter, fake the default for now */ 7937 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 7938 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 7939 return 0; 7940 } 7941 7942 static int 7943 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx) 7944 { 7945 struct lpfc_queue *qdesc; 7946 int cnt; 7947 7948 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7949 phba->sli4_hba.cq_ecount); 7950 if (!qdesc) { 7951 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7952 "0508 Failed allocate fast-path NVME CQ (%d)\n", 7953 wqidx); 7954 return 1; 7955 } 7956 phba->sli4_hba.nvme_cq[wqidx] = qdesc; 7957 7958 cnt = LPFC_NVME_WQSIZE; 7959 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_WQE128_SIZE, cnt); 7960 if (!qdesc) { 7961 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7962 "0509 Failed allocate fast-path NVME WQ (%d)\n", 7963 wqidx); 7964 return 1; 7965 } 7966 phba->sli4_hba.nvme_wq[wqidx] = qdesc; 7967 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 7968 return 0; 7969 } 7970 7971 static int 7972 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx) 7973 { 7974 struct lpfc_queue *qdesc; 7975 uint32_t wqesize; 7976 7977 /* Create Fast Path FCP CQs */ 7978 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7979 phba->sli4_hba.cq_ecount); 7980 if (!qdesc) { 7981 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7982 "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx); 7983 return 1; 7984 } 7985 phba->sli4_hba.fcp_cq[wqidx] = qdesc; 7986 7987 /* Create Fast Path FCP WQs */ 7988 wqesize = (phba->fcp_embed_io) ? 7989 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; 7990 qdesc = lpfc_sli4_queue_alloc(phba, wqesize, phba->sli4_hba.wq_ecount); 7991 if (!qdesc) { 7992 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7993 "0503 Failed allocate fast-path FCP WQ (%d)\n", 7994 wqidx); 7995 return 1; 7996 } 7997 phba->sli4_hba.fcp_wq[wqidx] = qdesc; 7998 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 7999 return 0; 8000 } 8001 8002 /** 8003 * lpfc_sli4_queue_create - Create all the SLI4 queues 8004 * @phba: pointer to lpfc hba data structure. 8005 * 8006 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 8007 * operation. For each SLI4 queue type, the parameters such as queue entry 8008 * count (queue depth) shall be taken from the module parameter. For now, 8009 * we just use some constant number as place holder. 8010 * 8011 * Return codes 8012 * 0 - successful 8013 * -ENOMEM - No availble memory 8014 * -EIO - The mailbox failed to complete successfully. 8015 **/ 8016 int 8017 lpfc_sli4_queue_create(struct lpfc_hba *phba) 8018 { 8019 struct lpfc_queue *qdesc; 8020 int idx, io_channel; 8021 8022 /* 8023 * Create HBA Record arrays. 8024 * Both NVME and FCP will share that same vectors / EQs 8025 */ 8026 io_channel = phba->io_channel_irqs; 8027 if (!io_channel) 8028 return -ERANGE; 8029 8030 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 8031 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 8032 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 8033 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 8034 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 8035 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 8036 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 8037 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 8038 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 8039 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 8040 8041 phba->sli4_hba.hba_eq = kcalloc(io_channel, 8042 sizeof(struct lpfc_queue *), 8043 GFP_KERNEL); 8044 if (!phba->sli4_hba.hba_eq) { 8045 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8046 "2576 Failed allocate memory for " 8047 "fast-path EQ record array\n"); 8048 goto out_error; 8049 } 8050 8051 if (phba->cfg_fcp_io_channel) { 8052 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel, 8053 sizeof(struct lpfc_queue *), 8054 GFP_KERNEL); 8055 if (!phba->sli4_hba.fcp_cq) { 8056 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8057 "2577 Failed allocate memory for " 8058 "fast-path CQ record array\n"); 8059 goto out_error; 8060 } 8061 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel, 8062 sizeof(struct lpfc_queue *), 8063 GFP_KERNEL); 8064 if (!phba->sli4_hba.fcp_wq) { 8065 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8066 "2578 Failed allocate memory for " 8067 "fast-path FCP WQ record array\n"); 8068 goto out_error; 8069 } 8070 /* 8071 * Since the first EQ can have multiple CQs associated with it, 8072 * this array is used to quickly see if we have a FCP fast-path 8073 * CQ match. 8074 */ 8075 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel, 8076 sizeof(uint16_t), 8077 GFP_KERNEL); 8078 if (!phba->sli4_hba.fcp_cq_map) { 8079 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8080 "2545 Failed allocate memory for " 8081 "fast-path CQ map\n"); 8082 goto out_error; 8083 } 8084 } 8085 8086 if (phba->cfg_nvme_io_channel) { 8087 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel, 8088 sizeof(struct lpfc_queue *), 8089 GFP_KERNEL); 8090 if (!phba->sli4_hba.nvme_cq) { 8091 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8092 "6077 Failed allocate memory for " 8093 "fast-path CQ record array\n"); 8094 goto out_error; 8095 } 8096 8097 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel, 8098 sizeof(struct lpfc_queue *), 8099 GFP_KERNEL); 8100 if (!phba->sli4_hba.nvme_wq) { 8101 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8102 "2581 Failed allocate memory for " 8103 "fast-path NVME WQ record array\n"); 8104 goto out_error; 8105 } 8106 8107 /* 8108 * Since the first EQ can have multiple CQs associated with it, 8109 * this array is used to quickly see if we have a NVME fast-path 8110 * CQ match. 8111 */ 8112 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel, 8113 sizeof(uint16_t), 8114 GFP_KERNEL); 8115 if (!phba->sli4_hba.nvme_cq_map) { 8116 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8117 "6078 Failed allocate memory for " 8118 "fast-path CQ map\n"); 8119 goto out_error; 8120 } 8121 8122 if (phba->nvmet_support) { 8123 phba->sli4_hba.nvmet_cqset = kcalloc( 8124 phba->cfg_nvmet_mrq, 8125 sizeof(struct lpfc_queue *), 8126 GFP_KERNEL); 8127 if (!phba->sli4_hba.nvmet_cqset) { 8128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8129 "3121 Fail allocate memory for " 8130 "fast-path CQ set array\n"); 8131 goto out_error; 8132 } 8133 phba->sli4_hba.nvmet_mrq_hdr = kcalloc( 8134 phba->cfg_nvmet_mrq, 8135 sizeof(struct lpfc_queue *), 8136 GFP_KERNEL); 8137 if (!phba->sli4_hba.nvmet_mrq_hdr) { 8138 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8139 "3122 Fail allocate memory for " 8140 "fast-path RQ set hdr array\n"); 8141 goto out_error; 8142 } 8143 phba->sli4_hba.nvmet_mrq_data = kcalloc( 8144 phba->cfg_nvmet_mrq, 8145 sizeof(struct lpfc_queue *), 8146 GFP_KERNEL); 8147 if (!phba->sli4_hba.nvmet_mrq_data) { 8148 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8149 "3124 Fail allocate memory for " 8150 "fast-path RQ set data array\n"); 8151 goto out_error; 8152 } 8153 } 8154 } 8155 8156 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 8157 8158 /* Create HBA Event Queues (EQs) */ 8159 for (idx = 0; idx < io_channel; idx++) { 8160 /* Create EQs */ 8161 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 8162 phba->sli4_hba.eq_ecount); 8163 if (!qdesc) { 8164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8165 "0497 Failed allocate EQ (%d)\n", idx); 8166 goto out_error; 8167 } 8168 phba->sli4_hba.hba_eq[idx] = qdesc; 8169 } 8170 8171 /* FCP and NVME io channels are not required to be balanced */ 8172 8173 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 8174 if (lpfc_alloc_fcp_wq_cq(phba, idx)) 8175 goto out_error; 8176 8177 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) 8178 if (lpfc_alloc_nvme_wq_cq(phba, idx)) 8179 goto out_error; 8180 8181 if (phba->nvmet_support) { 8182 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 8183 qdesc = lpfc_sli4_queue_alloc(phba, 8184 phba->sli4_hba.cq_esize, 8185 phba->sli4_hba.cq_ecount); 8186 if (!qdesc) { 8187 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8188 "3142 Failed allocate NVME " 8189 "CQ Set (%d)\n", idx); 8190 goto out_error; 8191 } 8192 phba->sli4_hba.nvmet_cqset[idx] = qdesc; 8193 } 8194 } 8195 8196 /* 8197 * Create Slow Path Completion Queues (CQs) 8198 */ 8199 8200 /* Create slow-path Mailbox Command Complete Queue */ 8201 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8202 phba->sli4_hba.cq_ecount); 8203 if (!qdesc) { 8204 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8205 "0500 Failed allocate slow-path mailbox CQ\n"); 8206 goto out_error; 8207 } 8208 phba->sli4_hba.mbx_cq = qdesc; 8209 8210 /* Create slow-path ELS Complete Queue */ 8211 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8212 phba->sli4_hba.cq_ecount); 8213 if (!qdesc) { 8214 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8215 "0501 Failed allocate slow-path ELS CQ\n"); 8216 goto out_error; 8217 } 8218 phba->sli4_hba.els_cq = qdesc; 8219 8220 8221 /* 8222 * Create Slow Path Work Queues (WQs) 8223 */ 8224 8225 /* Create Mailbox Command Queue */ 8226 8227 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 8228 phba->sli4_hba.mq_ecount); 8229 if (!qdesc) { 8230 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8231 "0505 Failed allocate slow-path MQ\n"); 8232 goto out_error; 8233 } 8234 phba->sli4_hba.mbx_wq = qdesc; 8235 8236 /* 8237 * Create ELS Work Queues 8238 */ 8239 8240 /* Create slow-path ELS Work Queue */ 8241 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 8242 phba->sli4_hba.wq_ecount); 8243 if (!qdesc) { 8244 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8245 "0504 Failed allocate slow-path ELS WQ\n"); 8246 goto out_error; 8247 } 8248 phba->sli4_hba.els_wq = qdesc; 8249 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8250 8251 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 8252 /* Create NVME LS Complete Queue */ 8253 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8254 phba->sli4_hba.cq_ecount); 8255 if (!qdesc) { 8256 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8257 "6079 Failed allocate NVME LS CQ\n"); 8258 goto out_error; 8259 } 8260 phba->sli4_hba.nvmels_cq = qdesc; 8261 8262 /* Create NVME LS Work Queue */ 8263 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 8264 phba->sli4_hba.wq_ecount); 8265 if (!qdesc) { 8266 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8267 "6080 Failed allocate NVME LS WQ\n"); 8268 goto out_error; 8269 } 8270 phba->sli4_hba.nvmels_wq = qdesc; 8271 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8272 } 8273 8274 /* 8275 * Create Receive Queue (RQ) 8276 */ 8277 8278 /* Create Receive Queue for header */ 8279 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 8280 phba->sli4_hba.rq_ecount); 8281 if (!qdesc) { 8282 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8283 "0506 Failed allocate receive HRQ\n"); 8284 goto out_error; 8285 } 8286 phba->sli4_hba.hdr_rq = qdesc; 8287 8288 /* Create Receive Queue for data */ 8289 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 8290 phba->sli4_hba.rq_ecount); 8291 if (!qdesc) { 8292 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8293 "0507 Failed allocate receive DRQ\n"); 8294 goto out_error; 8295 } 8296 phba->sli4_hba.dat_rq = qdesc; 8297 8298 if (phba->nvmet_support) { 8299 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 8300 /* Create NVMET Receive Queue for header */ 8301 qdesc = lpfc_sli4_queue_alloc(phba, 8302 phba->sli4_hba.rq_esize, 8303 LPFC_NVMET_RQE_DEF_COUNT); 8304 if (!qdesc) { 8305 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8306 "3146 Failed allocate " 8307 "receive HRQ\n"); 8308 goto out_error; 8309 } 8310 phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc; 8311 8312 /* Only needed for header of RQ pair */ 8313 qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb), 8314 GFP_KERNEL); 8315 if (qdesc->rqbp == NULL) { 8316 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8317 "6131 Failed allocate " 8318 "Header RQBP\n"); 8319 goto out_error; 8320 } 8321 8322 /* Put list in known state in case driver load fails. */ 8323 INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list); 8324 8325 /* Create NVMET Receive Queue for data */ 8326 qdesc = lpfc_sli4_queue_alloc(phba, 8327 phba->sli4_hba.rq_esize, 8328 LPFC_NVMET_RQE_DEF_COUNT); 8329 if (!qdesc) { 8330 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8331 "3156 Failed allocate " 8332 "receive DRQ\n"); 8333 goto out_error; 8334 } 8335 phba->sli4_hba.nvmet_mrq_data[idx] = qdesc; 8336 } 8337 } 8338 8339 /* Create the Queues needed for Flash Optimized Fabric operations */ 8340 if (phba->cfg_fof) 8341 lpfc_fof_queue_create(phba); 8342 return 0; 8343 8344 out_error: 8345 lpfc_sli4_queue_destroy(phba); 8346 return -ENOMEM; 8347 } 8348 8349 static inline void 8350 __lpfc_sli4_release_queue(struct lpfc_queue **qp) 8351 { 8352 if (*qp != NULL) { 8353 lpfc_sli4_queue_free(*qp); 8354 *qp = NULL; 8355 } 8356 } 8357 8358 static inline void 8359 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max) 8360 { 8361 int idx; 8362 8363 if (*qs == NULL) 8364 return; 8365 8366 for (idx = 0; idx < max; idx++) 8367 __lpfc_sli4_release_queue(&(*qs)[idx]); 8368 8369 kfree(*qs); 8370 *qs = NULL; 8371 } 8372 8373 static inline void 8374 lpfc_sli4_release_queue_map(uint16_t **qmap) 8375 { 8376 if (*qmap != NULL) { 8377 kfree(*qmap); 8378 *qmap = NULL; 8379 } 8380 } 8381 8382 /** 8383 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 8384 * @phba: pointer to lpfc hba data structure. 8385 * 8386 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 8387 * operation. 8388 * 8389 * Return codes 8390 * 0 - successful 8391 * -ENOMEM - No available memory 8392 * -EIO - The mailbox failed to complete successfully. 8393 **/ 8394 void 8395 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 8396 { 8397 if (phba->cfg_fof) 8398 lpfc_fof_queue_destroy(phba); 8399 8400 /* Release HBA eqs */ 8401 lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs); 8402 8403 /* Release FCP cqs */ 8404 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq, 8405 phba->cfg_fcp_io_channel); 8406 8407 /* Release FCP wqs */ 8408 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq, 8409 phba->cfg_fcp_io_channel); 8410 8411 /* Release FCP CQ mapping array */ 8412 lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map); 8413 8414 /* Release NVME cqs */ 8415 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq, 8416 phba->cfg_nvme_io_channel); 8417 8418 /* Release NVME wqs */ 8419 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq, 8420 phba->cfg_nvme_io_channel); 8421 8422 /* Release NVME CQ mapping array */ 8423 lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map); 8424 8425 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset, 8426 phba->cfg_nvmet_mrq); 8427 8428 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr, 8429 phba->cfg_nvmet_mrq); 8430 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data, 8431 phba->cfg_nvmet_mrq); 8432 8433 /* Release mailbox command work queue */ 8434 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq); 8435 8436 /* Release ELS work queue */ 8437 __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq); 8438 8439 /* Release ELS work queue */ 8440 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq); 8441 8442 /* Release unsolicited receive queue */ 8443 __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq); 8444 __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq); 8445 8446 /* Release ELS complete queue */ 8447 __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq); 8448 8449 /* Release NVME LS complete queue */ 8450 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq); 8451 8452 /* Release mailbox command complete queue */ 8453 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq); 8454 8455 /* Everything on this list has been freed */ 8456 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 8457 } 8458 8459 int 8460 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq) 8461 { 8462 struct lpfc_rqb *rqbp; 8463 struct lpfc_dmabuf *h_buf; 8464 struct rqb_dmabuf *rqb_buffer; 8465 8466 rqbp = rq->rqbp; 8467 while (!list_empty(&rqbp->rqb_buffer_list)) { 8468 list_remove_head(&rqbp->rqb_buffer_list, h_buf, 8469 struct lpfc_dmabuf, list); 8470 8471 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf); 8472 (rqbp->rqb_free_buffer)(phba, rqb_buffer); 8473 rqbp->buffer_count--; 8474 } 8475 return 1; 8476 } 8477 8478 static int 8479 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq, 8480 struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map, 8481 int qidx, uint32_t qtype) 8482 { 8483 struct lpfc_sli_ring *pring; 8484 int rc; 8485 8486 if (!eq || !cq || !wq) { 8487 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8488 "6085 Fast-path %s (%d) not allocated\n", 8489 ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx); 8490 return -ENOMEM; 8491 } 8492 8493 /* create the Cq first */ 8494 rc = lpfc_cq_create(phba, cq, eq, 8495 (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype); 8496 if (rc) { 8497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8498 "6086 Failed setup of CQ (%d), rc = 0x%x\n", 8499 qidx, (uint32_t)rc); 8500 return rc; 8501 } 8502 8503 if (qtype != LPFC_MBOX) { 8504 /* Setup nvme_cq_map for fast lookup */ 8505 if (cq_map) 8506 *cq_map = cq->queue_id; 8507 8508 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8509 "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n", 8510 qidx, cq->queue_id, qidx, eq->queue_id); 8511 8512 /* create the wq */ 8513 rc = lpfc_wq_create(phba, wq, cq, qtype); 8514 if (rc) { 8515 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8516 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n", 8517 qidx, (uint32_t)rc); 8518 /* no need to tear down cq - caller will do so */ 8519 return rc; 8520 } 8521 8522 /* Bind this CQ/WQ to the NVME ring */ 8523 pring = wq->pring; 8524 pring->sli.sli4.wqp = (void *)wq; 8525 cq->pring = pring; 8526 8527 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8528 "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n", 8529 qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id); 8530 } else { 8531 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX); 8532 if (rc) { 8533 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8534 "0539 Failed setup of slow-path MQ: " 8535 "rc = 0x%x\n", rc); 8536 /* no need to tear down cq - caller will do so */ 8537 return rc; 8538 } 8539 8540 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8541 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 8542 phba->sli4_hba.mbx_wq->queue_id, 8543 phba->sli4_hba.mbx_cq->queue_id); 8544 } 8545 8546 return 0; 8547 } 8548 8549 /** 8550 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 8551 * @phba: pointer to lpfc hba data structure. 8552 * 8553 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 8554 * operation. 8555 * 8556 * Return codes 8557 * 0 - successful 8558 * -ENOMEM - No available memory 8559 * -EIO - The mailbox failed to complete successfully. 8560 **/ 8561 int 8562 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 8563 { 8564 uint32_t shdr_status, shdr_add_status; 8565 union lpfc_sli4_cfg_shdr *shdr; 8566 LPFC_MBOXQ_t *mboxq; 8567 int qidx; 8568 uint32_t length, io_channel; 8569 int rc = -ENOMEM; 8570 8571 /* Check for dual-ULP support */ 8572 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 8573 if (!mboxq) { 8574 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8575 "3249 Unable to allocate memory for " 8576 "QUERY_FW_CFG mailbox command\n"); 8577 return -ENOMEM; 8578 } 8579 length = (sizeof(struct lpfc_mbx_query_fw_config) - 8580 sizeof(struct lpfc_sli4_cfg_mhdr)); 8581 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8582 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 8583 length, LPFC_SLI4_MBX_EMBED); 8584 8585 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8586 8587 shdr = (union lpfc_sli4_cfg_shdr *) 8588 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 8589 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 8590 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 8591 if (shdr_status || shdr_add_status || rc) { 8592 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8593 "3250 QUERY_FW_CFG mailbox failed with status " 8594 "x%x add_status x%x, mbx status x%x\n", 8595 shdr_status, shdr_add_status, rc); 8596 if (rc != MBX_TIMEOUT) 8597 mempool_free(mboxq, phba->mbox_mem_pool); 8598 rc = -ENXIO; 8599 goto out_error; 8600 } 8601 8602 phba->sli4_hba.fw_func_mode = 8603 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode; 8604 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode; 8605 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode; 8606 phba->sli4_hba.physical_port = 8607 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port; 8608 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8609 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, " 8610 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode, 8611 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode); 8612 8613 if (rc != MBX_TIMEOUT) 8614 mempool_free(mboxq, phba->mbox_mem_pool); 8615 8616 /* 8617 * Set up HBA Event Queues (EQs) 8618 */ 8619 io_channel = phba->io_channel_irqs; 8620 8621 /* Set up HBA event queue */ 8622 if (io_channel && !phba->sli4_hba.hba_eq) { 8623 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8624 "3147 Fast-path EQs not allocated\n"); 8625 rc = -ENOMEM; 8626 goto out_error; 8627 } 8628 for (qidx = 0; qidx < io_channel; qidx++) { 8629 if (!phba->sli4_hba.hba_eq[qidx]) { 8630 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8631 "0522 Fast-path EQ (%d) not " 8632 "allocated\n", qidx); 8633 rc = -ENOMEM; 8634 goto out_destroy; 8635 } 8636 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx], 8637 phba->cfg_fcp_imax); 8638 if (rc) { 8639 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8640 "0523 Failed setup of fast-path EQ " 8641 "(%d), rc = 0x%x\n", qidx, 8642 (uint32_t)rc); 8643 goto out_destroy; 8644 } 8645 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8646 "2584 HBA EQ setup: queue[%d]-id=%d\n", 8647 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id); 8648 } 8649 8650 if (phba->cfg_nvme_io_channel) { 8651 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) { 8652 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8653 "6084 Fast-path NVME %s array not allocated\n", 8654 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ"); 8655 rc = -ENOMEM; 8656 goto out_destroy; 8657 } 8658 8659 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { 8660 rc = lpfc_create_wq_cq(phba, 8661 phba->sli4_hba.hba_eq[ 8662 qidx % io_channel], 8663 phba->sli4_hba.nvme_cq[qidx], 8664 phba->sli4_hba.nvme_wq[qidx], 8665 &phba->sli4_hba.nvme_cq_map[qidx], 8666 qidx, LPFC_NVME); 8667 if (rc) { 8668 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8669 "6123 Failed to setup fastpath " 8670 "NVME WQ/CQ (%d), rc = 0x%x\n", 8671 qidx, (uint32_t)rc); 8672 goto out_destroy; 8673 } 8674 } 8675 } 8676 8677 if (phba->cfg_fcp_io_channel) { 8678 /* Set up fast-path FCP Response Complete Queue */ 8679 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) { 8680 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8681 "3148 Fast-path FCP %s array not allocated\n", 8682 phba->sli4_hba.fcp_cq ? "WQ" : "CQ"); 8683 rc = -ENOMEM; 8684 goto out_destroy; 8685 } 8686 8687 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { 8688 rc = lpfc_create_wq_cq(phba, 8689 phba->sli4_hba.hba_eq[ 8690 qidx % io_channel], 8691 phba->sli4_hba.fcp_cq[qidx], 8692 phba->sli4_hba.fcp_wq[qidx], 8693 &phba->sli4_hba.fcp_cq_map[qidx], 8694 qidx, LPFC_FCP); 8695 if (rc) { 8696 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8697 "0535 Failed to setup fastpath " 8698 "FCP WQ/CQ (%d), rc = 0x%x\n", 8699 qidx, (uint32_t)rc); 8700 goto out_destroy; 8701 } 8702 } 8703 } 8704 8705 /* 8706 * Set up Slow Path Complete Queues (CQs) 8707 */ 8708 8709 /* Set up slow-path MBOX CQ/MQ */ 8710 8711 if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) { 8712 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8713 "0528 %s not allocated\n", 8714 phba->sli4_hba.mbx_cq ? 8715 "Mailbox WQ" : "Mailbox CQ"); 8716 rc = -ENOMEM; 8717 goto out_destroy; 8718 } 8719 8720 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8721 phba->sli4_hba.mbx_cq, 8722 phba->sli4_hba.mbx_wq, 8723 NULL, 0, LPFC_MBOX); 8724 if (rc) { 8725 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8726 "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n", 8727 (uint32_t)rc); 8728 goto out_destroy; 8729 } 8730 if (phba->nvmet_support) { 8731 if (!phba->sli4_hba.nvmet_cqset) { 8732 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8733 "3165 Fast-path NVME CQ Set " 8734 "array not allocated\n"); 8735 rc = -ENOMEM; 8736 goto out_destroy; 8737 } 8738 if (phba->cfg_nvmet_mrq > 1) { 8739 rc = lpfc_cq_create_set(phba, 8740 phba->sli4_hba.nvmet_cqset, 8741 phba->sli4_hba.hba_eq, 8742 LPFC_WCQ, LPFC_NVMET); 8743 if (rc) { 8744 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8745 "3164 Failed setup of NVME CQ " 8746 "Set, rc = 0x%x\n", 8747 (uint32_t)rc); 8748 goto out_destroy; 8749 } 8750 } else { 8751 /* Set up NVMET Receive Complete Queue */ 8752 rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0], 8753 phba->sli4_hba.hba_eq[0], 8754 LPFC_WCQ, LPFC_NVMET); 8755 if (rc) { 8756 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8757 "6089 Failed setup NVMET CQ: " 8758 "rc = 0x%x\n", (uint32_t)rc); 8759 goto out_destroy; 8760 } 8761 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8762 "6090 NVMET CQ setup: cq-id=%d, " 8763 "parent eq-id=%d\n", 8764 phba->sli4_hba.nvmet_cqset[0]->queue_id, 8765 phba->sli4_hba.hba_eq[0]->queue_id); 8766 } 8767 } 8768 8769 /* Set up slow-path ELS WQ/CQ */ 8770 if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) { 8771 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8772 "0530 ELS %s not allocated\n", 8773 phba->sli4_hba.els_cq ? "WQ" : "CQ"); 8774 rc = -ENOMEM; 8775 goto out_destroy; 8776 } 8777 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8778 phba->sli4_hba.els_cq, 8779 phba->sli4_hba.els_wq, 8780 NULL, 0, LPFC_ELS); 8781 if (rc) { 8782 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8783 "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n", 8784 (uint32_t)rc); 8785 goto out_destroy; 8786 } 8787 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8788 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 8789 phba->sli4_hba.els_wq->queue_id, 8790 phba->sli4_hba.els_cq->queue_id); 8791 8792 if (phba->cfg_nvme_io_channel) { 8793 /* Set up NVME LS Complete Queue */ 8794 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) { 8795 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8796 "6091 LS %s not allocated\n", 8797 phba->sli4_hba.nvmels_cq ? "WQ" : "CQ"); 8798 rc = -ENOMEM; 8799 goto out_destroy; 8800 } 8801 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8802 phba->sli4_hba.nvmels_cq, 8803 phba->sli4_hba.nvmels_wq, 8804 NULL, 0, LPFC_NVME_LS); 8805 if (rc) { 8806 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8807 "0529 Failed setup of NVVME LS WQ/CQ: " 8808 "rc = 0x%x\n", (uint32_t)rc); 8809 goto out_destroy; 8810 } 8811 8812 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8813 "6096 ELS WQ setup: wq-id=%d, " 8814 "parent cq-id=%d\n", 8815 phba->sli4_hba.nvmels_wq->queue_id, 8816 phba->sli4_hba.nvmels_cq->queue_id); 8817 } 8818 8819 /* 8820 * Create NVMET Receive Queue (RQ) 8821 */ 8822 if (phba->nvmet_support) { 8823 if ((!phba->sli4_hba.nvmet_cqset) || 8824 (!phba->sli4_hba.nvmet_mrq_hdr) || 8825 (!phba->sli4_hba.nvmet_mrq_data)) { 8826 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8827 "6130 MRQ CQ Queues not " 8828 "allocated\n"); 8829 rc = -ENOMEM; 8830 goto out_destroy; 8831 } 8832 if (phba->cfg_nvmet_mrq > 1) { 8833 rc = lpfc_mrq_create(phba, 8834 phba->sli4_hba.nvmet_mrq_hdr, 8835 phba->sli4_hba.nvmet_mrq_data, 8836 phba->sli4_hba.nvmet_cqset, 8837 LPFC_NVMET); 8838 if (rc) { 8839 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8840 "6098 Failed setup of NVMET " 8841 "MRQ: rc = 0x%x\n", 8842 (uint32_t)rc); 8843 goto out_destroy; 8844 } 8845 8846 } else { 8847 rc = lpfc_rq_create(phba, 8848 phba->sli4_hba.nvmet_mrq_hdr[0], 8849 phba->sli4_hba.nvmet_mrq_data[0], 8850 phba->sli4_hba.nvmet_cqset[0], 8851 LPFC_NVMET); 8852 if (rc) { 8853 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8854 "6057 Failed setup of NVMET " 8855 "Receive Queue: rc = 0x%x\n", 8856 (uint32_t)rc); 8857 goto out_destroy; 8858 } 8859 8860 lpfc_printf_log( 8861 phba, KERN_INFO, LOG_INIT, 8862 "6099 NVMET RQ setup: hdr-rq-id=%d, " 8863 "dat-rq-id=%d parent cq-id=%d\n", 8864 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id, 8865 phba->sli4_hba.nvmet_mrq_data[0]->queue_id, 8866 phba->sli4_hba.nvmet_cqset[0]->queue_id); 8867 8868 } 8869 } 8870 8871 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 8872 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8873 "0540 Receive Queue not allocated\n"); 8874 rc = -ENOMEM; 8875 goto out_destroy; 8876 } 8877 8878 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 8879 phba->sli4_hba.els_cq, LPFC_USOL); 8880 if (rc) { 8881 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8882 "0541 Failed setup of Receive Queue: " 8883 "rc = 0x%x\n", (uint32_t)rc); 8884 goto out_destroy; 8885 } 8886 8887 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8888 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 8889 "parent cq-id=%d\n", 8890 phba->sli4_hba.hdr_rq->queue_id, 8891 phba->sli4_hba.dat_rq->queue_id, 8892 phba->sli4_hba.els_cq->queue_id); 8893 8894 if (phba->cfg_fof) { 8895 rc = lpfc_fof_queue_setup(phba); 8896 if (rc) { 8897 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8898 "0549 Failed setup of FOF Queues: " 8899 "rc = 0x%x\n", rc); 8900 goto out_destroy; 8901 } 8902 } 8903 8904 for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT) 8905 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT, 8906 phba->cfg_fcp_imax); 8907 8908 return 0; 8909 8910 out_destroy: 8911 lpfc_sli4_queue_unset(phba); 8912 out_error: 8913 return rc; 8914 } 8915 8916 /** 8917 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 8918 * @phba: pointer to lpfc hba data structure. 8919 * 8920 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 8921 * operation. 8922 * 8923 * Return codes 8924 * 0 - successful 8925 * -ENOMEM - No available memory 8926 * -EIO - The mailbox failed to complete successfully. 8927 **/ 8928 void 8929 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 8930 { 8931 int qidx; 8932 8933 /* Unset the queues created for Flash Optimized Fabric operations */ 8934 if (phba->cfg_fof) 8935 lpfc_fof_queue_destroy(phba); 8936 8937 /* Unset mailbox command work queue */ 8938 if (phba->sli4_hba.mbx_wq) 8939 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 8940 8941 /* Unset NVME LS work queue */ 8942 if (phba->sli4_hba.nvmels_wq) 8943 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq); 8944 8945 /* Unset ELS work queue */ 8946 if (phba->sli4_hba.els_wq) 8947 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 8948 8949 /* Unset unsolicited receive queue */ 8950 if (phba->sli4_hba.hdr_rq) 8951 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, 8952 phba->sli4_hba.dat_rq); 8953 8954 /* Unset FCP work queue */ 8955 if (phba->sli4_hba.fcp_wq) 8956 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) 8957 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]); 8958 8959 /* Unset NVME work queue */ 8960 if (phba->sli4_hba.nvme_wq) { 8961 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) 8962 lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]); 8963 } 8964 8965 /* Unset mailbox command complete queue */ 8966 if (phba->sli4_hba.mbx_cq) 8967 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 8968 8969 /* Unset ELS complete queue */ 8970 if (phba->sli4_hba.els_cq) 8971 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 8972 8973 /* Unset NVME LS complete queue */ 8974 if (phba->sli4_hba.nvmels_cq) 8975 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq); 8976 8977 /* Unset NVME response complete queue */ 8978 if (phba->sli4_hba.nvme_cq) 8979 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) 8980 lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]); 8981 8982 /* Unset NVMET MRQ queue */ 8983 if (phba->sli4_hba.nvmet_mrq_hdr) { 8984 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 8985 lpfc_rq_destroy(phba, 8986 phba->sli4_hba.nvmet_mrq_hdr[qidx], 8987 phba->sli4_hba.nvmet_mrq_data[qidx]); 8988 } 8989 8990 /* Unset NVMET CQ Set complete queue */ 8991 if (phba->sli4_hba.nvmet_cqset) { 8992 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 8993 lpfc_cq_destroy(phba, 8994 phba->sli4_hba.nvmet_cqset[qidx]); 8995 } 8996 8997 /* Unset FCP response complete queue */ 8998 if (phba->sli4_hba.fcp_cq) 8999 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) 9000 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]); 9001 9002 /* Unset fast-path event queue */ 9003 if (phba->sli4_hba.hba_eq) 9004 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) 9005 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]); 9006 } 9007 9008 /** 9009 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 9010 * @phba: pointer to lpfc hba data structure. 9011 * 9012 * This routine is invoked to allocate and set up a pool of completion queue 9013 * events. The body of the completion queue event is a completion queue entry 9014 * CQE. For now, this pool is used for the interrupt service routine to queue 9015 * the following HBA completion queue events for the worker thread to process: 9016 * - Mailbox asynchronous events 9017 * - Receive queue completion unsolicited events 9018 * Later, this can be used for all the slow-path events. 9019 * 9020 * Return codes 9021 * 0 - successful 9022 * -ENOMEM - No available memory 9023 **/ 9024 static int 9025 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 9026 { 9027 struct lpfc_cq_event *cq_event; 9028 int i; 9029 9030 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 9031 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 9032 if (!cq_event) 9033 goto out_pool_create_fail; 9034 list_add_tail(&cq_event->list, 9035 &phba->sli4_hba.sp_cqe_event_pool); 9036 } 9037 return 0; 9038 9039 out_pool_create_fail: 9040 lpfc_sli4_cq_event_pool_destroy(phba); 9041 return -ENOMEM; 9042 } 9043 9044 /** 9045 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 9046 * @phba: pointer to lpfc hba data structure. 9047 * 9048 * This routine is invoked to free the pool of completion queue events at 9049 * driver unload time. Note that, it is the responsibility of the driver 9050 * cleanup routine to free all the outstanding completion-queue events 9051 * allocated from this pool back into the pool before invoking this routine 9052 * to destroy the pool. 9053 **/ 9054 static void 9055 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 9056 { 9057 struct lpfc_cq_event *cq_event, *next_cq_event; 9058 9059 list_for_each_entry_safe(cq_event, next_cq_event, 9060 &phba->sli4_hba.sp_cqe_event_pool, list) { 9061 list_del(&cq_event->list); 9062 kfree(cq_event); 9063 } 9064 } 9065 9066 /** 9067 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 9068 * @phba: pointer to lpfc hba data structure. 9069 * 9070 * This routine is the lock free version of the API invoked to allocate a 9071 * completion-queue event from the free pool. 9072 * 9073 * Return: Pointer to the newly allocated completion-queue event if successful 9074 * NULL otherwise. 9075 **/ 9076 struct lpfc_cq_event * 9077 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 9078 { 9079 struct lpfc_cq_event *cq_event = NULL; 9080 9081 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 9082 struct lpfc_cq_event, list); 9083 return cq_event; 9084 } 9085 9086 /** 9087 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 9088 * @phba: pointer to lpfc hba data structure. 9089 * 9090 * This routine is the lock version of the API invoked to allocate a 9091 * completion-queue event from the free pool. 9092 * 9093 * Return: Pointer to the newly allocated completion-queue event if successful 9094 * NULL otherwise. 9095 **/ 9096 struct lpfc_cq_event * 9097 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 9098 { 9099 struct lpfc_cq_event *cq_event; 9100 unsigned long iflags; 9101 9102 spin_lock_irqsave(&phba->hbalock, iflags); 9103 cq_event = __lpfc_sli4_cq_event_alloc(phba); 9104 spin_unlock_irqrestore(&phba->hbalock, iflags); 9105 return cq_event; 9106 } 9107 9108 /** 9109 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 9110 * @phba: pointer to lpfc hba data structure. 9111 * @cq_event: pointer to the completion queue event to be freed. 9112 * 9113 * This routine is the lock free version of the API invoked to release a 9114 * completion-queue event back into the free pool. 9115 **/ 9116 void 9117 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 9118 struct lpfc_cq_event *cq_event) 9119 { 9120 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 9121 } 9122 9123 /** 9124 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 9125 * @phba: pointer to lpfc hba data structure. 9126 * @cq_event: pointer to the completion queue event to be freed. 9127 * 9128 * This routine is the lock version of the API invoked to release a 9129 * completion-queue event back into the free pool. 9130 **/ 9131 void 9132 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 9133 struct lpfc_cq_event *cq_event) 9134 { 9135 unsigned long iflags; 9136 spin_lock_irqsave(&phba->hbalock, iflags); 9137 __lpfc_sli4_cq_event_release(phba, cq_event); 9138 spin_unlock_irqrestore(&phba->hbalock, iflags); 9139 } 9140 9141 /** 9142 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 9143 * @phba: pointer to lpfc hba data structure. 9144 * 9145 * This routine is to free all the pending completion-queue events to the 9146 * back into the free pool for device reset. 9147 **/ 9148 static void 9149 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 9150 { 9151 LIST_HEAD(cqelist); 9152 struct lpfc_cq_event *cqe; 9153 unsigned long iflags; 9154 9155 /* Retrieve all the pending WCQEs from pending WCQE lists */ 9156 spin_lock_irqsave(&phba->hbalock, iflags); 9157 /* Pending FCP XRI abort events */ 9158 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 9159 &cqelist); 9160 /* Pending ELS XRI abort events */ 9161 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 9162 &cqelist); 9163 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 9164 /* Pending NVME XRI abort events */ 9165 list_splice_init(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue, 9166 &cqelist); 9167 } 9168 /* Pending asynnc events */ 9169 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 9170 &cqelist); 9171 spin_unlock_irqrestore(&phba->hbalock, iflags); 9172 9173 while (!list_empty(&cqelist)) { 9174 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 9175 lpfc_sli4_cq_event_release(phba, cqe); 9176 } 9177 } 9178 9179 /** 9180 * lpfc_pci_function_reset - Reset pci function. 9181 * @phba: pointer to lpfc hba data structure. 9182 * 9183 * This routine is invoked to request a PCI function reset. It will destroys 9184 * all resources assigned to the PCI function which originates this request. 9185 * 9186 * Return codes 9187 * 0 - successful 9188 * -ENOMEM - No available memory 9189 * -EIO - The mailbox failed to complete successfully. 9190 **/ 9191 int 9192 lpfc_pci_function_reset(struct lpfc_hba *phba) 9193 { 9194 LPFC_MBOXQ_t *mboxq; 9195 uint32_t rc = 0, if_type; 9196 uint32_t shdr_status, shdr_add_status; 9197 uint32_t rdy_chk; 9198 uint32_t port_reset = 0; 9199 union lpfc_sli4_cfg_shdr *shdr; 9200 struct lpfc_register reg_data; 9201 uint16_t devid; 9202 9203 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9204 switch (if_type) { 9205 case LPFC_SLI_INTF_IF_TYPE_0: 9206 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 9207 GFP_KERNEL); 9208 if (!mboxq) { 9209 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9210 "0494 Unable to allocate memory for " 9211 "issuing SLI_FUNCTION_RESET mailbox " 9212 "command\n"); 9213 return -ENOMEM; 9214 } 9215 9216 /* Setup PCI function reset mailbox-ioctl command */ 9217 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 9218 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 9219 LPFC_SLI4_MBX_EMBED); 9220 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9221 shdr = (union lpfc_sli4_cfg_shdr *) 9222 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 9223 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 9224 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 9225 &shdr->response); 9226 if (rc != MBX_TIMEOUT) 9227 mempool_free(mboxq, phba->mbox_mem_pool); 9228 if (shdr_status || shdr_add_status || rc) { 9229 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9230 "0495 SLI_FUNCTION_RESET mailbox " 9231 "failed with status x%x add_status x%x," 9232 " mbx status x%x\n", 9233 shdr_status, shdr_add_status, rc); 9234 rc = -ENXIO; 9235 } 9236 break; 9237 case LPFC_SLI_INTF_IF_TYPE_2: 9238 wait: 9239 /* 9240 * Poll the Port Status Register and wait for RDY for 9241 * up to 30 seconds. If the port doesn't respond, treat 9242 * it as an error. 9243 */ 9244 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) { 9245 if (lpfc_readl(phba->sli4_hba.u.if_type2. 9246 STATUSregaddr, ®_data.word0)) { 9247 rc = -ENODEV; 9248 goto out; 9249 } 9250 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 9251 break; 9252 msleep(20); 9253 } 9254 9255 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) { 9256 phba->work_status[0] = readl( 9257 phba->sli4_hba.u.if_type2.ERR1regaddr); 9258 phba->work_status[1] = readl( 9259 phba->sli4_hba.u.if_type2.ERR2regaddr); 9260 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9261 "2890 Port not ready, port status reg " 9262 "0x%x error 1=0x%x, error 2=0x%x\n", 9263 reg_data.word0, 9264 phba->work_status[0], 9265 phba->work_status[1]); 9266 rc = -ENODEV; 9267 goto out; 9268 } 9269 9270 if (!port_reset) { 9271 /* 9272 * Reset the port now 9273 */ 9274 reg_data.word0 = 0; 9275 bf_set(lpfc_sliport_ctrl_end, ®_data, 9276 LPFC_SLIPORT_LITTLE_ENDIAN); 9277 bf_set(lpfc_sliport_ctrl_ip, ®_data, 9278 LPFC_SLIPORT_INIT_PORT); 9279 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 9280 CTRLregaddr); 9281 /* flush */ 9282 pci_read_config_word(phba->pcidev, 9283 PCI_DEVICE_ID, &devid); 9284 9285 port_reset = 1; 9286 msleep(20); 9287 goto wait; 9288 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) { 9289 rc = -ENODEV; 9290 goto out; 9291 } 9292 break; 9293 9294 case LPFC_SLI_INTF_IF_TYPE_1: 9295 default: 9296 break; 9297 } 9298 9299 out: 9300 /* Catch the not-ready port failure after a port reset. */ 9301 if (rc) { 9302 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9303 "3317 HBA not functional: IP Reset Failed " 9304 "try: echo fw_reset > board_mode\n"); 9305 rc = -ENODEV; 9306 } 9307 9308 return rc; 9309 } 9310 9311 /** 9312 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 9313 * @phba: pointer to lpfc hba data structure. 9314 * 9315 * This routine is invoked to set up the PCI device memory space for device 9316 * with SLI-4 interface spec. 9317 * 9318 * Return codes 9319 * 0 - successful 9320 * other values - error 9321 **/ 9322 static int 9323 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 9324 { 9325 struct pci_dev *pdev; 9326 unsigned long bar0map_len, bar1map_len, bar2map_len; 9327 int error = -ENODEV; 9328 uint32_t if_type; 9329 9330 /* Obtain PCI device reference */ 9331 if (!phba->pcidev) 9332 return error; 9333 else 9334 pdev = phba->pcidev; 9335 9336 /* Set the device DMA mask size */ 9337 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 9338 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 9339 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 9340 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 9341 return error; 9342 } 9343 } 9344 9345 /* 9346 * The BARs and register set definitions and offset locations are 9347 * dependent on the if_type. 9348 */ 9349 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 9350 &phba->sli4_hba.sli_intf.word0)) { 9351 return error; 9352 } 9353 9354 /* There is no SLI3 failback for SLI4 devices. */ 9355 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 9356 LPFC_SLI_INTF_VALID) { 9357 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9358 "2894 SLI_INTF reg contents invalid " 9359 "sli_intf reg 0x%x\n", 9360 phba->sli4_hba.sli_intf.word0); 9361 return error; 9362 } 9363 9364 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9365 /* 9366 * Get the bus address of SLI4 device Bar regions and the 9367 * number of bytes required by each mapping. The mapping of the 9368 * particular PCI BARs regions is dependent on the type of 9369 * SLI4 device. 9370 */ 9371 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) { 9372 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0); 9373 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0); 9374 9375 /* 9376 * Map SLI4 PCI Config Space Register base to a kernel virtual 9377 * addr 9378 */ 9379 phba->sli4_hba.conf_regs_memmap_p = 9380 ioremap(phba->pci_bar0_map, bar0map_len); 9381 if (!phba->sli4_hba.conf_regs_memmap_p) { 9382 dev_printk(KERN_ERR, &pdev->dev, 9383 "ioremap failed for SLI4 PCI config " 9384 "registers.\n"); 9385 goto out; 9386 } 9387 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p; 9388 /* Set up BAR0 PCI config space register memory map */ 9389 lpfc_sli4_bar0_register_memmap(phba, if_type); 9390 } else { 9391 phba->pci_bar0_map = pci_resource_start(pdev, 1); 9392 bar0map_len = pci_resource_len(pdev, 1); 9393 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 9394 dev_printk(KERN_ERR, &pdev->dev, 9395 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 9396 goto out; 9397 } 9398 phba->sli4_hba.conf_regs_memmap_p = 9399 ioremap(phba->pci_bar0_map, bar0map_len); 9400 if (!phba->sli4_hba.conf_regs_memmap_p) { 9401 dev_printk(KERN_ERR, &pdev->dev, 9402 "ioremap failed for SLI4 PCI config " 9403 "registers.\n"); 9404 goto out; 9405 } 9406 lpfc_sli4_bar0_register_memmap(phba, if_type); 9407 } 9408 9409 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 9410 (pci_resource_start(pdev, PCI_64BIT_BAR2))) { 9411 /* 9412 * Map SLI4 if type 0 HBA Control Register base to a kernel 9413 * virtual address and setup the registers. 9414 */ 9415 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2); 9416 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2); 9417 phba->sli4_hba.ctrl_regs_memmap_p = 9418 ioremap(phba->pci_bar1_map, bar1map_len); 9419 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 9420 dev_printk(KERN_ERR, &pdev->dev, 9421 "ioremap failed for SLI4 HBA control registers.\n"); 9422 goto out_iounmap_conf; 9423 } 9424 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p; 9425 lpfc_sli4_bar1_register_memmap(phba); 9426 } 9427 9428 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 9429 (pci_resource_start(pdev, PCI_64BIT_BAR4))) { 9430 /* 9431 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 9432 * virtual address and setup the registers. 9433 */ 9434 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4); 9435 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4); 9436 phba->sli4_hba.drbl_regs_memmap_p = 9437 ioremap(phba->pci_bar2_map, bar2map_len); 9438 if (!phba->sli4_hba.drbl_regs_memmap_p) { 9439 dev_printk(KERN_ERR, &pdev->dev, 9440 "ioremap failed for SLI4 HBA doorbell registers.\n"); 9441 goto out_iounmap_ctrl; 9442 } 9443 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p; 9444 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 9445 if (error) 9446 goto out_iounmap_all; 9447 } 9448 9449 return 0; 9450 9451 out_iounmap_all: 9452 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9453 out_iounmap_ctrl: 9454 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 9455 out_iounmap_conf: 9456 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9457 out: 9458 return error; 9459 } 9460 9461 /** 9462 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 9463 * @phba: pointer to lpfc hba data structure. 9464 * 9465 * This routine is invoked to unset the PCI device memory space for device 9466 * with SLI-4 interface spec. 9467 **/ 9468 static void 9469 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 9470 { 9471 uint32_t if_type; 9472 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9473 9474 switch (if_type) { 9475 case LPFC_SLI_INTF_IF_TYPE_0: 9476 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9477 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 9478 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9479 break; 9480 case LPFC_SLI_INTF_IF_TYPE_2: 9481 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9482 break; 9483 case LPFC_SLI_INTF_IF_TYPE_1: 9484 default: 9485 dev_printk(KERN_ERR, &phba->pcidev->dev, 9486 "FATAL - unsupported SLI4 interface type - %d\n", 9487 if_type); 9488 break; 9489 } 9490 } 9491 9492 /** 9493 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 9494 * @phba: pointer to lpfc hba data structure. 9495 * 9496 * This routine is invoked to enable the MSI-X interrupt vectors to device 9497 * with SLI-3 interface specs. 9498 * 9499 * Return codes 9500 * 0 - successful 9501 * other values - error 9502 **/ 9503 static int 9504 lpfc_sli_enable_msix(struct lpfc_hba *phba) 9505 { 9506 int rc; 9507 LPFC_MBOXQ_t *pmb; 9508 9509 /* Set up MSI-X multi-message vectors */ 9510 rc = pci_alloc_irq_vectors(phba->pcidev, 9511 LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX); 9512 if (rc < 0) { 9513 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9514 "0420 PCI enable MSI-X failed (%d)\n", rc); 9515 goto vec_fail_out; 9516 } 9517 9518 /* 9519 * Assign MSI-X vectors to interrupt handlers 9520 */ 9521 9522 /* vector-0 is associated to slow-path handler */ 9523 rc = request_irq(pci_irq_vector(phba->pcidev, 0), 9524 &lpfc_sli_sp_intr_handler, 0, 9525 LPFC_SP_DRIVER_HANDLER_NAME, phba); 9526 if (rc) { 9527 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9528 "0421 MSI-X slow-path request_irq failed " 9529 "(%d)\n", rc); 9530 goto msi_fail_out; 9531 } 9532 9533 /* vector-1 is associated to fast-path handler */ 9534 rc = request_irq(pci_irq_vector(phba->pcidev, 1), 9535 &lpfc_sli_fp_intr_handler, 0, 9536 LPFC_FP_DRIVER_HANDLER_NAME, phba); 9537 9538 if (rc) { 9539 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9540 "0429 MSI-X fast-path request_irq failed " 9541 "(%d)\n", rc); 9542 goto irq_fail_out; 9543 } 9544 9545 /* 9546 * Configure HBA MSI-X attention conditions to messages 9547 */ 9548 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 9549 9550 if (!pmb) { 9551 rc = -ENOMEM; 9552 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9553 "0474 Unable to allocate memory for issuing " 9554 "MBOX_CONFIG_MSI command\n"); 9555 goto mem_fail_out; 9556 } 9557 rc = lpfc_config_msi(phba, pmb); 9558 if (rc) 9559 goto mbx_fail_out; 9560 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 9561 if (rc != MBX_SUCCESS) { 9562 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 9563 "0351 Config MSI mailbox command failed, " 9564 "mbxCmd x%x, mbxStatus x%x\n", 9565 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 9566 goto mbx_fail_out; 9567 } 9568 9569 /* Free memory allocated for mailbox command */ 9570 mempool_free(pmb, phba->mbox_mem_pool); 9571 return rc; 9572 9573 mbx_fail_out: 9574 /* Free memory allocated for mailbox command */ 9575 mempool_free(pmb, phba->mbox_mem_pool); 9576 9577 mem_fail_out: 9578 /* free the irq already requested */ 9579 free_irq(pci_irq_vector(phba->pcidev, 1), phba); 9580 9581 irq_fail_out: 9582 /* free the irq already requested */ 9583 free_irq(pci_irq_vector(phba->pcidev, 0), phba); 9584 9585 msi_fail_out: 9586 /* Unconfigure MSI-X capability structure */ 9587 pci_free_irq_vectors(phba->pcidev); 9588 9589 vec_fail_out: 9590 return rc; 9591 } 9592 9593 /** 9594 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 9595 * @phba: pointer to lpfc hba data structure. 9596 * 9597 * This routine is invoked to enable the MSI interrupt mode to device with 9598 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 9599 * enable the MSI vector. The device driver is responsible for calling the 9600 * request_irq() to register MSI vector with a interrupt the handler, which 9601 * is done in this function. 9602 * 9603 * Return codes 9604 * 0 - successful 9605 * other values - error 9606 */ 9607 static int 9608 lpfc_sli_enable_msi(struct lpfc_hba *phba) 9609 { 9610 int rc; 9611 9612 rc = pci_enable_msi(phba->pcidev); 9613 if (!rc) 9614 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9615 "0462 PCI enable MSI mode success.\n"); 9616 else { 9617 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9618 "0471 PCI enable MSI mode failed (%d)\n", rc); 9619 return rc; 9620 } 9621 9622 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 9623 0, LPFC_DRIVER_NAME, phba); 9624 if (rc) { 9625 pci_disable_msi(phba->pcidev); 9626 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9627 "0478 MSI request_irq failed (%d)\n", rc); 9628 } 9629 return rc; 9630 } 9631 9632 /** 9633 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 9634 * @phba: pointer to lpfc hba data structure. 9635 * 9636 * This routine is invoked to enable device interrupt and associate driver's 9637 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 9638 * spec. Depends on the interrupt mode configured to the driver, the driver 9639 * will try to fallback from the configured interrupt mode to an interrupt 9640 * mode which is supported by the platform, kernel, and device in the order 9641 * of: 9642 * MSI-X -> MSI -> IRQ. 9643 * 9644 * Return codes 9645 * 0 - successful 9646 * other values - error 9647 **/ 9648 static uint32_t 9649 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 9650 { 9651 uint32_t intr_mode = LPFC_INTR_ERROR; 9652 int retval; 9653 9654 if (cfg_mode == 2) { 9655 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 9656 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 9657 if (!retval) { 9658 /* Now, try to enable MSI-X interrupt mode */ 9659 retval = lpfc_sli_enable_msix(phba); 9660 if (!retval) { 9661 /* Indicate initialization to MSI-X mode */ 9662 phba->intr_type = MSIX; 9663 intr_mode = 2; 9664 } 9665 } 9666 } 9667 9668 /* Fallback to MSI if MSI-X initialization failed */ 9669 if (cfg_mode >= 1 && phba->intr_type == NONE) { 9670 retval = lpfc_sli_enable_msi(phba); 9671 if (!retval) { 9672 /* Indicate initialization to MSI mode */ 9673 phba->intr_type = MSI; 9674 intr_mode = 1; 9675 } 9676 } 9677 9678 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 9679 if (phba->intr_type == NONE) { 9680 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 9681 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 9682 if (!retval) { 9683 /* Indicate initialization to INTx mode */ 9684 phba->intr_type = INTx; 9685 intr_mode = 0; 9686 } 9687 } 9688 return intr_mode; 9689 } 9690 9691 /** 9692 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 9693 * @phba: pointer to lpfc hba data structure. 9694 * 9695 * This routine is invoked to disable device interrupt and disassociate the 9696 * driver's interrupt handler(s) from interrupt vector(s) to device with 9697 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 9698 * release the interrupt vector(s) for the message signaled interrupt. 9699 **/ 9700 static void 9701 lpfc_sli_disable_intr(struct lpfc_hba *phba) 9702 { 9703 int nr_irqs, i; 9704 9705 if (phba->intr_type == MSIX) 9706 nr_irqs = LPFC_MSIX_VECTORS; 9707 else 9708 nr_irqs = 1; 9709 9710 for (i = 0; i < nr_irqs; i++) 9711 free_irq(pci_irq_vector(phba->pcidev, i), phba); 9712 pci_free_irq_vectors(phba->pcidev); 9713 9714 /* Reset interrupt management states */ 9715 phba->intr_type = NONE; 9716 phba->sli.slistat.sli_intr = 0; 9717 } 9718 9719 /** 9720 * lpfc_cpu_affinity_check - Check vector CPU affinity mappings 9721 * @phba: pointer to lpfc hba data structure. 9722 * @vectors: number of msix vectors allocated. 9723 * 9724 * The routine will figure out the CPU affinity assignment for every 9725 * MSI-X vector allocated for the HBA. The hba_eq_hdl will be updated 9726 * with a pointer to the CPU mask that defines ALL the CPUs this vector 9727 * can be associated with. If the vector can be unquely associated with 9728 * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu. 9729 * In addition, the CPU to IO channel mapping will be calculated 9730 * and the phba->sli4_hba.cpu_map array will reflect this. 9731 */ 9732 static void 9733 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors) 9734 { 9735 struct lpfc_vector_map_info *cpup; 9736 int index = 0; 9737 int vec = 0; 9738 int cpu; 9739 #ifdef CONFIG_X86 9740 struct cpuinfo_x86 *cpuinfo; 9741 #endif 9742 9743 /* Init cpu_map array */ 9744 memset(phba->sli4_hba.cpu_map, 0xff, 9745 (sizeof(struct lpfc_vector_map_info) * 9746 phba->sli4_hba.num_present_cpu)); 9747 9748 /* Update CPU map with physical id and core id of each CPU */ 9749 cpup = phba->sli4_hba.cpu_map; 9750 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 9751 #ifdef CONFIG_X86 9752 cpuinfo = &cpu_data(cpu); 9753 cpup->phys_id = cpuinfo->phys_proc_id; 9754 cpup->core_id = cpuinfo->cpu_core_id; 9755 #else 9756 /* No distinction between CPUs for other platforms */ 9757 cpup->phys_id = 0; 9758 cpup->core_id = 0; 9759 #endif 9760 cpup->channel_id = index; /* For now round robin */ 9761 cpup->irq = pci_irq_vector(phba->pcidev, vec); 9762 vec++; 9763 if (vec >= vectors) 9764 vec = 0; 9765 index++; 9766 if (index >= phba->cfg_fcp_io_channel) 9767 index = 0; 9768 cpup++; 9769 } 9770 } 9771 9772 9773 /** 9774 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 9775 * @phba: pointer to lpfc hba data structure. 9776 * 9777 * This routine is invoked to enable the MSI-X interrupt vectors to device 9778 * with SLI-4 interface spec. 9779 * 9780 * Return codes 9781 * 0 - successful 9782 * other values - error 9783 **/ 9784 static int 9785 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 9786 { 9787 int vectors, rc, index; 9788 char *name; 9789 9790 /* Set up MSI-X multi-message vectors */ 9791 vectors = phba->io_channel_irqs; 9792 if (phba->cfg_fof) 9793 vectors++; 9794 9795 rc = pci_alloc_irq_vectors(phba->pcidev, 9796 (phba->nvmet_support) ? 1 : 2, 9797 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY); 9798 if (rc < 0) { 9799 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9800 "0484 PCI enable MSI-X failed (%d)\n", rc); 9801 goto vec_fail_out; 9802 } 9803 vectors = rc; 9804 9805 /* Assign MSI-X vectors to interrupt handlers */ 9806 for (index = 0; index < vectors; index++) { 9807 name = phba->sli4_hba.hba_eq_hdl[index].handler_name; 9808 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ); 9809 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ, 9810 LPFC_DRIVER_HANDLER_NAME"%d", index); 9811 9812 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9813 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9814 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1); 9815 if (phba->cfg_fof && (index == (vectors - 1))) 9816 rc = request_irq(pci_irq_vector(phba->pcidev, index), 9817 &lpfc_sli4_fof_intr_handler, 0, 9818 name, 9819 &phba->sli4_hba.hba_eq_hdl[index]); 9820 else 9821 rc = request_irq(pci_irq_vector(phba->pcidev, index), 9822 &lpfc_sli4_hba_intr_handler, 0, 9823 name, 9824 &phba->sli4_hba.hba_eq_hdl[index]); 9825 if (rc) { 9826 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9827 "0486 MSI-X fast-path (%d) " 9828 "request_irq failed (%d)\n", index, rc); 9829 goto cfg_fail_out; 9830 } 9831 } 9832 9833 if (phba->cfg_fof) 9834 vectors--; 9835 9836 if (vectors != phba->io_channel_irqs) { 9837 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9838 "3238 Reducing IO channels to match number of " 9839 "MSI-X vectors, requested %d got %d\n", 9840 phba->io_channel_irqs, vectors); 9841 if (phba->cfg_fcp_io_channel > vectors) 9842 phba->cfg_fcp_io_channel = vectors; 9843 if (phba->cfg_nvme_io_channel > vectors) 9844 phba->cfg_nvme_io_channel = vectors; 9845 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel) 9846 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 9847 else 9848 phba->io_channel_irqs = phba->cfg_nvme_io_channel; 9849 } 9850 lpfc_cpu_affinity_check(phba, vectors); 9851 9852 return rc; 9853 9854 cfg_fail_out: 9855 /* free the irq already requested */ 9856 for (--index; index >= 0; index--) 9857 free_irq(pci_irq_vector(phba->pcidev, index), 9858 &phba->sli4_hba.hba_eq_hdl[index]); 9859 9860 /* Unconfigure MSI-X capability structure */ 9861 pci_free_irq_vectors(phba->pcidev); 9862 9863 vec_fail_out: 9864 return rc; 9865 } 9866 9867 /** 9868 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 9869 * @phba: pointer to lpfc hba data structure. 9870 * 9871 * This routine is invoked to enable the MSI interrupt mode to device with 9872 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 9873 * to enable the MSI vector. The device driver is responsible for calling 9874 * the request_irq() to register MSI vector with a interrupt the handler, 9875 * which is done in this function. 9876 * 9877 * Return codes 9878 * 0 - successful 9879 * other values - error 9880 **/ 9881 static int 9882 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 9883 { 9884 int rc, index; 9885 9886 rc = pci_enable_msi(phba->pcidev); 9887 if (!rc) 9888 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9889 "0487 PCI enable MSI mode success.\n"); 9890 else { 9891 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9892 "0488 PCI enable MSI mode failed (%d)\n", rc); 9893 return rc; 9894 } 9895 9896 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 9897 0, LPFC_DRIVER_NAME, phba); 9898 if (rc) { 9899 pci_disable_msi(phba->pcidev); 9900 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9901 "0490 MSI request_irq failed (%d)\n", rc); 9902 return rc; 9903 } 9904 9905 for (index = 0; index < phba->io_channel_irqs; index++) { 9906 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9907 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9908 } 9909 9910 if (phba->cfg_fof) { 9911 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9912 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9913 } 9914 return 0; 9915 } 9916 9917 /** 9918 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 9919 * @phba: pointer to lpfc hba data structure. 9920 * 9921 * This routine is invoked to enable device interrupt and associate driver's 9922 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 9923 * interface spec. Depends on the interrupt mode configured to the driver, 9924 * the driver will try to fallback from the configured interrupt mode to an 9925 * interrupt mode which is supported by the platform, kernel, and device in 9926 * the order of: 9927 * MSI-X -> MSI -> IRQ. 9928 * 9929 * Return codes 9930 * 0 - successful 9931 * other values - error 9932 **/ 9933 static uint32_t 9934 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 9935 { 9936 uint32_t intr_mode = LPFC_INTR_ERROR; 9937 int retval, idx; 9938 9939 if (cfg_mode == 2) { 9940 /* Preparation before conf_msi mbox cmd */ 9941 retval = 0; 9942 if (!retval) { 9943 /* Now, try to enable MSI-X interrupt mode */ 9944 retval = lpfc_sli4_enable_msix(phba); 9945 if (!retval) { 9946 /* Indicate initialization to MSI-X mode */ 9947 phba->intr_type = MSIX; 9948 intr_mode = 2; 9949 } 9950 } 9951 } 9952 9953 /* Fallback to MSI if MSI-X initialization failed */ 9954 if (cfg_mode >= 1 && phba->intr_type == NONE) { 9955 retval = lpfc_sli4_enable_msi(phba); 9956 if (!retval) { 9957 /* Indicate initialization to MSI mode */ 9958 phba->intr_type = MSI; 9959 intr_mode = 1; 9960 } 9961 } 9962 9963 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 9964 if (phba->intr_type == NONE) { 9965 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 9966 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 9967 if (!retval) { 9968 struct lpfc_hba_eq_hdl *eqhdl; 9969 9970 /* Indicate initialization to INTx mode */ 9971 phba->intr_type = INTx; 9972 intr_mode = 0; 9973 9974 for (idx = 0; idx < phba->io_channel_irqs; idx++) { 9975 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; 9976 eqhdl->idx = idx; 9977 eqhdl->phba = phba; 9978 atomic_set(&eqhdl->hba_eq_in_use, 1); 9979 } 9980 if (phba->cfg_fof) { 9981 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; 9982 eqhdl->idx = idx; 9983 eqhdl->phba = phba; 9984 atomic_set(&eqhdl->hba_eq_in_use, 1); 9985 } 9986 } 9987 } 9988 return intr_mode; 9989 } 9990 9991 /** 9992 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 9993 * @phba: pointer to lpfc hba data structure. 9994 * 9995 * This routine is invoked to disable device interrupt and disassociate 9996 * the driver's interrupt handler(s) from interrupt vector(s) to device 9997 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 9998 * will release the interrupt vector(s) for the message signaled interrupt. 9999 **/ 10000 static void 10001 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 10002 { 10003 /* Disable the currently initialized interrupt mode */ 10004 if (phba->intr_type == MSIX) { 10005 int index; 10006 10007 /* Free up MSI-X multi-message vectors */ 10008 for (index = 0; index < phba->io_channel_irqs; index++) 10009 free_irq(pci_irq_vector(phba->pcidev, index), 10010 &phba->sli4_hba.hba_eq_hdl[index]); 10011 10012 if (phba->cfg_fof) 10013 free_irq(pci_irq_vector(phba->pcidev, index), 10014 &phba->sli4_hba.hba_eq_hdl[index]); 10015 } else { 10016 free_irq(phba->pcidev->irq, phba); 10017 } 10018 10019 pci_free_irq_vectors(phba->pcidev); 10020 10021 /* Reset interrupt management states */ 10022 phba->intr_type = NONE; 10023 phba->sli.slistat.sli_intr = 0; 10024 } 10025 10026 /** 10027 * lpfc_unset_hba - Unset SLI3 hba device initialization 10028 * @phba: pointer to lpfc hba data structure. 10029 * 10030 * This routine is invoked to unset the HBA device initialization steps to 10031 * a device with SLI-3 interface spec. 10032 **/ 10033 static void 10034 lpfc_unset_hba(struct lpfc_hba *phba) 10035 { 10036 struct lpfc_vport *vport = phba->pport; 10037 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 10038 10039 spin_lock_irq(shost->host_lock); 10040 vport->load_flag |= FC_UNLOADING; 10041 spin_unlock_irq(shost->host_lock); 10042 10043 kfree(phba->vpi_bmask); 10044 kfree(phba->vpi_ids); 10045 10046 lpfc_stop_hba_timers(phba); 10047 10048 phba->pport->work_port_events = 0; 10049 10050 lpfc_sli_hba_down(phba); 10051 10052 lpfc_sli_brdrestart(phba); 10053 10054 lpfc_sli_disable_intr(phba); 10055 10056 return; 10057 } 10058 10059 /** 10060 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 10061 * @phba: Pointer to HBA context object. 10062 * 10063 * This function is called in the SLI4 code path to wait for completion 10064 * of device's XRIs exchange busy. It will check the XRI exchange busy 10065 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 10066 * that, it will check the XRI exchange busy on outstanding FCP and ELS 10067 * I/Os every 30 seconds, log error message, and wait forever. Only when 10068 * all XRI exchange busy complete, the driver unload shall proceed with 10069 * invoking the function reset ioctl mailbox command to the CNA and the 10070 * the rest of the driver unload resource release. 10071 **/ 10072 static void 10073 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 10074 { 10075 int wait_time = 0; 10076 int nvme_xri_cmpl = 1; 10077 int nvmet_xri_cmpl = 1; 10078 int fcp_xri_cmpl = 1; 10079 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 10080 10081 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 10082 fcp_xri_cmpl = 10083 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 10084 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 10085 nvme_xri_cmpl = 10086 list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list); 10087 nvmet_xri_cmpl = 10088 list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 10089 } 10090 10091 while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl || 10092 !nvmet_xri_cmpl) { 10093 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 10094 if (!nvme_xri_cmpl) 10095 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10096 "6100 NVME XRI exchange busy " 10097 "wait time: %d seconds.\n", 10098 wait_time/1000); 10099 if (!fcp_xri_cmpl) 10100 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10101 "2877 FCP XRI exchange busy " 10102 "wait time: %d seconds.\n", 10103 wait_time/1000); 10104 if (!els_xri_cmpl) 10105 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10106 "2878 ELS XRI exchange busy " 10107 "wait time: %d seconds.\n", 10108 wait_time/1000); 10109 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 10110 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 10111 } else { 10112 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 10113 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 10114 } 10115 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 10116 nvme_xri_cmpl = list_empty( 10117 &phba->sli4_hba.lpfc_abts_nvme_buf_list); 10118 nvmet_xri_cmpl = list_empty( 10119 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 10120 } 10121 10122 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 10123 fcp_xri_cmpl = list_empty( 10124 &phba->sli4_hba.lpfc_abts_scsi_buf_list); 10125 10126 els_xri_cmpl = 10127 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 10128 10129 } 10130 } 10131 10132 /** 10133 * lpfc_sli4_hba_unset - Unset the fcoe hba 10134 * @phba: Pointer to HBA context object. 10135 * 10136 * This function is called in the SLI4 code path to reset the HBA's FCoE 10137 * function. The caller is not required to hold any lock. This routine 10138 * issues PCI function reset mailbox command to reset the FCoE function. 10139 * At the end of the function, it calls lpfc_hba_down_post function to 10140 * free any pending commands. 10141 **/ 10142 static void 10143 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 10144 { 10145 int wait_cnt = 0; 10146 LPFC_MBOXQ_t *mboxq; 10147 struct pci_dev *pdev = phba->pcidev; 10148 10149 lpfc_stop_hba_timers(phba); 10150 phba->sli4_hba.intr_enable = 0; 10151 10152 /* 10153 * Gracefully wait out the potential current outstanding asynchronous 10154 * mailbox command. 10155 */ 10156 10157 /* First, block any pending async mailbox command from posted */ 10158 spin_lock_irq(&phba->hbalock); 10159 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 10160 spin_unlock_irq(&phba->hbalock); 10161 /* Now, trying to wait it out if we can */ 10162 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 10163 msleep(10); 10164 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 10165 break; 10166 } 10167 /* Forcefully release the outstanding mailbox command if timed out */ 10168 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 10169 spin_lock_irq(&phba->hbalock); 10170 mboxq = phba->sli.mbox_active; 10171 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 10172 __lpfc_mbox_cmpl_put(phba, mboxq); 10173 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 10174 phba->sli.mbox_active = NULL; 10175 spin_unlock_irq(&phba->hbalock); 10176 } 10177 10178 /* Abort all iocbs associated with the hba */ 10179 lpfc_sli_hba_iocb_abort(phba); 10180 10181 /* Wait for completion of device XRI exchange busy */ 10182 lpfc_sli4_xri_exchange_busy_wait(phba); 10183 10184 /* Disable PCI subsystem interrupt */ 10185 lpfc_sli4_disable_intr(phba); 10186 10187 /* Disable SR-IOV if enabled */ 10188 if (phba->cfg_sriov_nr_virtfn) 10189 pci_disable_sriov(pdev); 10190 10191 /* Stop kthread signal shall trigger work_done one more time */ 10192 kthread_stop(phba->worker_thread); 10193 10194 /* Unset the queues shared with the hardware then release all 10195 * allocated resources. 10196 */ 10197 lpfc_sli4_queue_unset(phba); 10198 lpfc_sli4_queue_destroy(phba); 10199 10200 /* Reset SLI4 HBA FCoE function */ 10201 lpfc_pci_function_reset(phba); 10202 10203 /* Stop the SLI4 device port */ 10204 phba->pport->work_port_events = 0; 10205 } 10206 10207 /** 10208 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 10209 * @phba: Pointer to HBA context object. 10210 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 10211 * 10212 * This function is called in the SLI4 code path to read the port's 10213 * sli4 capabilities. 10214 * 10215 * This function may be be called from any context that can block-wait 10216 * for the completion. The expectation is that this routine is called 10217 * typically from probe_one or from the online routine. 10218 **/ 10219 int 10220 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 10221 { 10222 int rc; 10223 struct lpfc_mqe *mqe; 10224 struct lpfc_pc_sli4_params *sli4_params; 10225 uint32_t mbox_tmo; 10226 10227 rc = 0; 10228 mqe = &mboxq->u.mqe; 10229 10230 /* Read the port's SLI4 Parameters port capabilities */ 10231 lpfc_pc_sli4_params(mboxq); 10232 if (!phba->sli4_hba.intr_enable) 10233 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10234 else { 10235 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 10236 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 10237 } 10238 10239 if (unlikely(rc)) 10240 return 1; 10241 10242 sli4_params = &phba->sli4_hba.pc_sli4_params; 10243 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 10244 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 10245 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 10246 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 10247 &mqe->un.sli4_params); 10248 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 10249 &mqe->un.sli4_params); 10250 sli4_params->proto_types = mqe->un.sli4_params.word3; 10251 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 10252 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 10253 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 10254 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 10255 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 10256 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 10257 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 10258 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 10259 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 10260 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 10261 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 10262 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 10263 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 10264 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 10265 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 10266 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 10267 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 10268 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 10269 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 10270 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 10271 10272 /* Make sure that sge_supp_len can be handled by the driver */ 10273 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 10274 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 10275 10276 return rc; 10277 } 10278 10279 /** 10280 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 10281 * @phba: Pointer to HBA context object. 10282 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 10283 * 10284 * This function is called in the SLI4 code path to read the port's 10285 * sli4 capabilities. 10286 * 10287 * This function may be be called from any context that can block-wait 10288 * for the completion. The expectation is that this routine is called 10289 * typically from probe_one or from the online routine. 10290 **/ 10291 int 10292 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 10293 { 10294 int rc; 10295 struct lpfc_mqe *mqe = &mboxq->u.mqe; 10296 struct lpfc_pc_sli4_params *sli4_params; 10297 uint32_t mbox_tmo; 10298 int length; 10299 struct lpfc_sli4_parameters *mbx_sli4_parameters; 10300 10301 /* 10302 * By default, the driver assumes the SLI4 port requires RPI 10303 * header postings. The SLI4_PARAM response will correct this 10304 * assumption. 10305 */ 10306 phba->sli4_hba.rpi_hdrs_in_use = 1; 10307 10308 /* Read the port's SLI4 Config Parameters */ 10309 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 10310 sizeof(struct lpfc_sli4_cfg_mhdr)); 10311 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 10312 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 10313 length, LPFC_SLI4_MBX_EMBED); 10314 if (!phba->sli4_hba.intr_enable) 10315 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10316 else { 10317 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 10318 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 10319 } 10320 if (unlikely(rc)) 10321 return rc; 10322 sli4_params = &phba->sli4_hba.pc_sli4_params; 10323 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 10324 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 10325 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 10326 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 10327 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 10328 mbx_sli4_parameters); 10329 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 10330 mbx_sli4_parameters); 10331 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 10332 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 10333 else 10334 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 10335 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 10336 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 10337 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters); 10338 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 10339 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 10340 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 10341 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 10342 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters); 10343 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 10344 mbx_sli4_parameters); 10345 sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters); 10346 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 10347 mbx_sli4_parameters); 10348 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 10349 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 10350 phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) && 10351 bf_get(cfg_xib, mbx_sli4_parameters)); 10352 10353 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) || 10354 !phba->nvme_support) { 10355 phba->nvme_support = 0; 10356 phba->nvmet_support = 0; 10357 phba->cfg_nvmet_mrq = 0; 10358 phba->cfg_nvme_io_channel = 0; 10359 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 10360 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME, 10361 "6101 Disabling NVME support: " 10362 "Not supported by firmware: %d %d\n", 10363 bf_get(cfg_nvme, mbx_sli4_parameters), 10364 bf_get(cfg_xib, mbx_sli4_parameters)); 10365 10366 /* If firmware doesn't support NVME, just use SCSI support */ 10367 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 10368 return -ENODEV; 10369 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 10370 } 10371 10372 if (bf_get(cfg_xib, mbx_sli4_parameters) && phba->cfg_suppress_rsp) 10373 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP; 10374 10375 if (bf_get(cfg_eqdr, mbx_sli4_parameters)) 10376 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR; 10377 10378 /* Make sure that sge_supp_len can be handled by the driver */ 10379 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 10380 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 10381 10382 /* 10383 * Issue IOs with CDB embedded in WQE to minimized the number 10384 * of DMAs the firmware has to do. Setting this to 1 also forces 10385 * the driver to use 128 bytes WQEs for FCP IOs. 10386 */ 10387 if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters)) 10388 phba->fcp_embed_io = 1; 10389 else 10390 phba->fcp_embed_io = 0; 10391 10392 /* 10393 * Check if the SLI port supports MDS Diagnostics 10394 */ 10395 if (bf_get(cfg_mds_diags, mbx_sli4_parameters)) 10396 phba->mds_diags_support = 1; 10397 else 10398 phba->mds_diags_support = 0; 10399 return 0; 10400 } 10401 10402 /** 10403 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 10404 * @pdev: pointer to PCI device 10405 * @pid: pointer to PCI device identifier 10406 * 10407 * This routine is to be called to attach a device with SLI-3 interface spec 10408 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 10409 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 10410 * information of the device and driver to see if the driver state that it can 10411 * support this kind of device. If the match is successful, the driver core 10412 * invokes this routine. If this routine determines it can claim the HBA, it 10413 * does all the initialization that it needs to do to handle the HBA properly. 10414 * 10415 * Return code 10416 * 0 - driver can claim the device 10417 * negative value - driver can not claim the device 10418 **/ 10419 static int 10420 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 10421 { 10422 struct lpfc_hba *phba; 10423 struct lpfc_vport *vport = NULL; 10424 struct Scsi_Host *shost = NULL; 10425 int error; 10426 uint32_t cfg_mode, intr_mode; 10427 10428 /* Allocate memory for HBA structure */ 10429 phba = lpfc_hba_alloc(pdev); 10430 if (!phba) 10431 return -ENOMEM; 10432 10433 /* Perform generic PCI device enabling operation */ 10434 error = lpfc_enable_pci_dev(phba); 10435 if (error) 10436 goto out_free_phba; 10437 10438 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 10439 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 10440 if (error) 10441 goto out_disable_pci_dev; 10442 10443 /* Set up SLI-3 specific device PCI memory space */ 10444 error = lpfc_sli_pci_mem_setup(phba); 10445 if (error) { 10446 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10447 "1402 Failed to set up pci memory space.\n"); 10448 goto out_disable_pci_dev; 10449 } 10450 10451 /* Set up SLI-3 specific device driver resources */ 10452 error = lpfc_sli_driver_resource_setup(phba); 10453 if (error) { 10454 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10455 "1404 Failed to set up driver resource.\n"); 10456 goto out_unset_pci_mem_s3; 10457 } 10458 10459 /* Initialize and populate the iocb list per host */ 10460 10461 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 10462 if (error) { 10463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10464 "1405 Failed to initialize iocb list.\n"); 10465 goto out_unset_driver_resource_s3; 10466 } 10467 10468 /* Set up common device driver resources */ 10469 error = lpfc_setup_driver_resource_phase2(phba); 10470 if (error) { 10471 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10472 "1406 Failed to set up driver resource.\n"); 10473 goto out_free_iocb_list; 10474 } 10475 10476 /* Get the default values for Model Name and Description */ 10477 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 10478 10479 /* Create SCSI host to the physical port */ 10480 error = lpfc_create_shost(phba); 10481 if (error) { 10482 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10483 "1407 Failed to create scsi host.\n"); 10484 goto out_unset_driver_resource; 10485 } 10486 10487 /* Configure sysfs attributes */ 10488 vport = phba->pport; 10489 error = lpfc_alloc_sysfs_attr(vport); 10490 if (error) { 10491 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10492 "1476 Failed to allocate sysfs attr\n"); 10493 goto out_destroy_shost; 10494 } 10495 10496 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 10497 /* Now, trying to enable interrupt and bring up the device */ 10498 cfg_mode = phba->cfg_use_msi; 10499 while (true) { 10500 /* Put device to a known state before enabling interrupt */ 10501 lpfc_stop_port(phba); 10502 /* Configure and enable interrupt */ 10503 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 10504 if (intr_mode == LPFC_INTR_ERROR) { 10505 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10506 "0431 Failed to enable interrupt.\n"); 10507 error = -ENODEV; 10508 goto out_free_sysfs_attr; 10509 } 10510 /* SLI-3 HBA setup */ 10511 if (lpfc_sli_hba_setup(phba)) { 10512 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10513 "1477 Failed to set up hba\n"); 10514 error = -ENODEV; 10515 goto out_remove_device; 10516 } 10517 10518 /* Wait 50ms for the interrupts of previous mailbox commands */ 10519 msleep(50); 10520 /* Check active interrupts on message signaled interrupts */ 10521 if (intr_mode == 0 || 10522 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 10523 /* Log the current active interrupt mode */ 10524 phba->intr_mode = intr_mode; 10525 lpfc_log_intr_mode(phba, intr_mode); 10526 break; 10527 } else { 10528 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10529 "0447 Configure interrupt mode (%d) " 10530 "failed active interrupt test.\n", 10531 intr_mode); 10532 /* Disable the current interrupt mode */ 10533 lpfc_sli_disable_intr(phba); 10534 /* Try next level of interrupt mode */ 10535 cfg_mode = --intr_mode; 10536 } 10537 } 10538 10539 /* Perform post initialization setup */ 10540 lpfc_post_init_setup(phba); 10541 10542 /* Check if there are static vports to be created. */ 10543 lpfc_create_static_vport(phba); 10544 10545 return 0; 10546 10547 out_remove_device: 10548 lpfc_unset_hba(phba); 10549 out_free_sysfs_attr: 10550 lpfc_free_sysfs_attr(vport); 10551 out_destroy_shost: 10552 lpfc_destroy_shost(phba); 10553 out_unset_driver_resource: 10554 lpfc_unset_driver_resource_phase2(phba); 10555 out_free_iocb_list: 10556 lpfc_free_iocb_list(phba); 10557 out_unset_driver_resource_s3: 10558 lpfc_sli_driver_resource_unset(phba); 10559 out_unset_pci_mem_s3: 10560 lpfc_sli_pci_mem_unset(phba); 10561 out_disable_pci_dev: 10562 lpfc_disable_pci_dev(phba); 10563 if (shost) 10564 scsi_host_put(shost); 10565 out_free_phba: 10566 lpfc_hba_free(phba); 10567 return error; 10568 } 10569 10570 /** 10571 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 10572 * @pdev: pointer to PCI device 10573 * 10574 * This routine is to be called to disattach a device with SLI-3 interface 10575 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 10576 * removed from PCI bus, it performs all the necessary cleanup for the HBA 10577 * device to be removed from the PCI subsystem properly. 10578 **/ 10579 static void 10580 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 10581 { 10582 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10583 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 10584 struct lpfc_vport **vports; 10585 struct lpfc_hba *phba = vport->phba; 10586 int i; 10587 10588 spin_lock_irq(&phba->hbalock); 10589 vport->load_flag |= FC_UNLOADING; 10590 spin_unlock_irq(&phba->hbalock); 10591 10592 lpfc_free_sysfs_attr(vport); 10593 10594 /* Release all the vports against this physical port */ 10595 vports = lpfc_create_vport_work_array(phba); 10596 if (vports != NULL) 10597 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 10598 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 10599 continue; 10600 fc_vport_terminate(vports[i]->fc_vport); 10601 } 10602 lpfc_destroy_vport_work_array(phba, vports); 10603 10604 /* Remove FC host and then SCSI host with the physical port */ 10605 fc_remove_host(shost); 10606 scsi_remove_host(shost); 10607 10608 lpfc_cleanup(vport); 10609 10610 /* 10611 * Bring down the SLI Layer. This step disable all interrupts, 10612 * clears the rings, discards all mailbox commands, and resets 10613 * the HBA. 10614 */ 10615 10616 /* HBA interrupt will be disabled after this call */ 10617 lpfc_sli_hba_down(phba); 10618 /* Stop kthread signal shall trigger work_done one more time */ 10619 kthread_stop(phba->worker_thread); 10620 /* Final cleanup of txcmplq and reset the HBA */ 10621 lpfc_sli_brdrestart(phba); 10622 10623 kfree(phba->vpi_bmask); 10624 kfree(phba->vpi_ids); 10625 10626 lpfc_stop_hba_timers(phba); 10627 spin_lock_irq(&phba->hbalock); 10628 list_del_init(&vport->listentry); 10629 spin_unlock_irq(&phba->hbalock); 10630 10631 lpfc_debugfs_terminate(vport); 10632 10633 /* Disable SR-IOV if enabled */ 10634 if (phba->cfg_sriov_nr_virtfn) 10635 pci_disable_sriov(pdev); 10636 10637 /* Disable interrupt */ 10638 lpfc_sli_disable_intr(phba); 10639 10640 scsi_host_put(shost); 10641 10642 /* 10643 * Call scsi_free before mem_free since scsi bufs are released to their 10644 * corresponding pools here. 10645 */ 10646 lpfc_scsi_free(phba); 10647 lpfc_mem_free_all(phba); 10648 10649 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 10650 phba->hbqslimp.virt, phba->hbqslimp.phys); 10651 10652 /* Free resources associated with SLI2 interface */ 10653 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 10654 phba->slim2p.virt, phba->slim2p.phys); 10655 10656 /* unmap adapter SLIM and Control Registers */ 10657 iounmap(phba->ctrl_regs_memmap_p); 10658 iounmap(phba->slim_memmap_p); 10659 10660 lpfc_hba_free(phba); 10661 10662 pci_release_mem_regions(pdev); 10663 pci_disable_device(pdev); 10664 } 10665 10666 /** 10667 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 10668 * @pdev: pointer to PCI device 10669 * @msg: power management message 10670 * 10671 * This routine is to be called from the kernel's PCI subsystem to support 10672 * system Power Management (PM) to device with SLI-3 interface spec. When 10673 * PM invokes this method, it quiesces the device by stopping the driver's 10674 * worker thread for the device, turning off device's interrupt and DMA, 10675 * and bring the device offline. Note that as the driver implements the 10676 * minimum PM requirements to a power-aware driver's PM support for the 10677 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 10678 * to the suspend() method call will be treated as SUSPEND and the driver will 10679 * fully reinitialize its device during resume() method call, the driver will 10680 * set device to PCI_D3hot state in PCI config space instead of setting it 10681 * according to the @msg provided by the PM. 10682 * 10683 * Return code 10684 * 0 - driver suspended the device 10685 * Error otherwise 10686 **/ 10687 static int 10688 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 10689 { 10690 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10691 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10692 10693 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10694 "0473 PCI device Power Management suspend.\n"); 10695 10696 /* Bring down the device */ 10697 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10698 lpfc_offline(phba); 10699 kthread_stop(phba->worker_thread); 10700 10701 /* Disable interrupt from device */ 10702 lpfc_sli_disable_intr(phba); 10703 10704 /* Save device state to PCI config space */ 10705 pci_save_state(pdev); 10706 pci_set_power_state(pdev, PCI_D3hot); 10707 10708 return 0; 10709 } 10710 10711 /** 10712 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 10713 * @pdev: pointer to PCI device 10714 * 10715 * This routine is to be called from the kernel's PCI subsystem to support 10716 * system Power Management (PM) to device with SLI-3 interface spec. When PM 10717 * invokes this method, it restores the device's PCI config space state and 10718 * fully reinitializes the device and brings it online. Note that as the 10719 * driver implements the minimum PM requirements to a power-aware driver's 10720 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 10721 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 10722 * driver will fully reinitialize its device during resume() method call, 10723 * the device will be set to PCI_D0 directly in PCI config space before 10724 * restoring the state. 10725 * 10726 * Return code 10727 * 0 - driver suspended the device 10728 * Error otherwise 10729 **/ 10730 static int 10731 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 10732 { 10733 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10734 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10735 uint32_t intr_mode; 10736 int error; 10737 10738 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10739 "0452 PCI device Power Management resume.\n"); 10740 10741 /* Restore device state from PCI config space */ 10742 pci_set_power_state(pdev, PCI_D0); 10743 pci_restore_state(pdev); 10744 10745 /* 10746 * As the new kernel behavior of pci_restore_state() API call clears 10747 * device saved_state flag, need to save the restored state again. 10748 */ 10749 pci_save_state(pdev); 10750 10751 if (pdev->is_busmaster) 10752 pci_set_master(pdev); 10753 10754 /* Startup the kernel thread for this host adapter. */ 10755 phba->worker_thread = kthread_run(lpfc_do_work, phba, 10756 "lpfc_worker_%d", phba->brd_no); 10757 if (IS_ERR(phba->worker_thread)) { 10758 error = PTR_ERR(phba->worker_thread); 10759 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10760 "0434 PM resume failed to start worker " 10761 "thread: error=x%x.\n", error); 10762 return error; 10763 } 10764 10765 /* Configure and enable interrupt */ 10766 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 10767 if (intr_mode == LPFC_INTR_ERROR) { 10768 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10769 "0430 PM resume Failed to enable interrupt\n"); 10770 return -EIO; 10771 } else 10772 phba->intr_mode = intr_mode; 10773 10774 /* Restart HBA and bring it online */ 10775 lpfc_sli_brdrestart(phba); 10776 lpfc_online(phba); 10777 10778 /* Log the current active interrupt mode */ 10779 lpfc_log_intr_mode(phba, phba->intr_mode); 10780 10781 return 0; 10782 } 10783 10784 /** 10785 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 10786 * @phba: pointer to lpfc hba data structure. 10787 * 10788 * This routine is called to prepare the SLI3 device for PCI slot recover. It 10789 * aborts all the outstanding SCSI I/Os to the pci device. 10790 **/ 10791 static void 10792 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 10793 { 10794 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10795 "2723 PCI channel I/O abort preparing for recovery\n"); 10796 10797 /* 10798 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 10799 * and let the SCSI mid-layer to retry them to recover. 10800 */ 10801 lpfc_sli_abort_fcp_rings(phba); 10802 } 10803 10804 /** 10805 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 10806 * @phba: pointer to lpfc hba data structure. 10807 * 10808 * This routine is called to prepare the SLI3 device for PCI slot reset. It 10809 * disables the device interrupt and pci device, and aborts the internal FCP 10810 * pending I/Os. 10811 **/ 10812 static void 10813 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 10814 { 10815 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10816 "2710 PCI channel disable preparing for reset\n"); 10817 10818 /* Block any management I/Os to the device */ 10819 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 10820 10821 /* Block all SCSI devices' I/Os on the host */ 10822 lpfc_scsi_dev_block(phba); 10823 10824 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 10825 lpfc_sli_flush_fcp_rings(phba); 10826 10827 /* stop all timers */ 10828 lpfc_stop_hba_timers(phba); 10829 10830 /* Disable interrupt and pci device */ 10831 lpfc_sli_disable_intr(phba); 10832 pci_disable_device(phba->pcidev); 10833 } 10834 10835 /** 10836 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 10837 * @phba: pointer to lpfc hba data structure. 10838 * 10839 * This routine is called to prepare the SLI3 device for PCI slot permanently 10840 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 10841 * pending I/Os. 10842 **/ 10843 static void 10844 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 10845 { 10846 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10847 "2711 PCI channel permanent disable for failure\n"); 10848 /* Block all SCSI devices' I/Os on the host */ 10849 lpfc_scsi_dev_block(phba); 10850 10851 /* stop all timers */ 10852 lpfc_stop_hba_timers(phba); 10853 10854 /* Clean up all driver's outstanding SCSI I/Os */ 10855 lpfc_sli_flush_fcp_rings(phba); 10856 } 10857 10858 /** 10859 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 10860 * @pdev: pointer to PCI device. 10861 * @state: the current PCI connection state. 10862 * 10863 * This routine is called from the PCI subsystem for I/O error handling to 10864 * device with SLI-3 interface spec. This function is called by the PCI 10865 * subsystem after a PCI bus error affecting this device has been detected. 10866 * When this function is invoked, it will need to stop all the I/Os and 10867 * interrupt(s) to the device. Once that is done, it will return 10868 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 10869 * as desired. 10870 * 10871 * Return codes 10872 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 10873 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10874 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10875 **/ 10876 static pci_ers_result_t 10877 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 10878 { 10879 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10880 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10881 10882 switch (state) { 10883 case pci_channel_io_normal: 10884 /* Non-fatal error, prepare for recovery */ 10885 lpfc_sli_prep_dev_for_recover(phba); 10886 return PCI_ERS_RESULT_CAN_RECOVER; 10887 case pci_channel_io_frozen: 10888 /* Fatal error, prepare for slot reset */ 10889 lpfc_sli_prep_dev_for_reset(phba); 10890 return PCI_ERS_RESULT_NEED_RESET; 10891 case pci_channel_io_perm_failure: 10892 /* Permanent failure, prepare for device down */ 10893 lpfc_sli_prep_dev_for_perm_failure(phba); 10894 return PCI_ERS_RESULT_DISCONNECT; 10895 default: 10896 /* Unknown state, prepare and request slot reset */ 10897 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10898 "0472 Unknown PCI error state: x%x\n", state); 10899 lpfc_sli_prep_dev_for_reset(phba); 10900 return PCI_ERS_RESULT_NEED_RESET; 10901 } 10902 } 10903 10904 /** 10905 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 10906 * @pdev: pointer to PCI device. 10907 * 10908 * This routine is called from the PCI subsystem for error handling to 10909 * device with SLI-3 interface spec. This is called after PCI bus has been 10910 * reset to restart the PCI card from scratch, as if from a cold-boot. 10911 * During the PCI subsystem error recovery, after driver returns 10912 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 10913 * recovery and then call this routine before calling the .resume method 10914 * to recover the device. This function will initialize the HBA device, 10915 * enable the interrupt, but it will just put the HBA to offline state 10916 * without passing any I/O traffic. 10917 * 10918 * Return codes 10919 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10920 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10921 */ 10922 static pci_ers_result_t 10923 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 10924 { 10925 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10926 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10927 struct lpfc_sli *psli = &phba->sli; 10928 uint32_t intr_mode; 10929 10930 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 10931 if (pci_enable_device_mem(pdev)) { 10932 printk(KERN_ERR "lpfc: Cannot re-enable " 10933 "PCI device after reset.\n"); 10934 return PCI_ERS_RESULT_DISCONNECT; 10935 } 10936 10937 pci_restore_state(pdev); 10938 10939 /* 10940 * As the new kernel behavior of pci_restore_state() API call clears 10941 * device saved_state flag, need to save the restored state again. 10942 */ 10943 pci_save_state(pdev); 10944 10945 if (pdev->is_busmaster) 10946 pci_set_master(pdev); 10947 10948 spin_lock_irq(&phba->hbalock); 10949 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 10950 spin_unlock_irq(&phba->hbalock); 10951 10952 /* Configure and enable interrupt */ 10953 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 10954 if (intr_mode == LPFC_INTR_ERROR) { 10955 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10956 "0427 Cannot re-enable interrupt after " 10957 "slot reset.\n"); 10958 return PCI_ERS_RESULT_DISCONNECT; 10959 } else 10960 phba->intr_mode = intr_mode; 10961 10962 /* Take device offline, it will perform cleanup */ 10963 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10964 lpfc_offline(phba); 10965 lpfc_sli_brdrestart(phba); 10966 10967 /* Log the current active interrupt mode */ 10968 lpfc_log_intr_mode(phba, phba->intr_mode); 10969 10970 return PCI_ERS_RESULT_RECOVERED; 10971 } 10972 10973 /** 10974 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 10975 * @pdev: pointer to PCI device 10976 * 10977 * This routine is called from the PCI subsystem for error handling to device 10978 * with SLI-3 interface spec. It is called when kernel error recovery tells 10979 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 10980 * error recovery. After this call, traffic can start to flow from this device 10981 * again. 10982 */ 10983 static void 10984 lpfc_io_resume_s3(struct pci_dev *pdev) 10985 { 10986 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10987 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10988 10989 /* Bring device online, it will be no-op for non-fatal error resume */ 10990 lpfc_online(phba); 10991 10992 /* Clean up Advanced Error Reporting (AER) if needed */ 10993 if (phba->hba_flag & HBA_AER_ENABLED) 10994 pci_cleanup_aer_uncorrect_error_status(pdev); 10995 } 10996 10997 /** 10998 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 10999 * @phba: pointer to lpfc hba data structure. 11000 * 11001 * returns the number of ELS/CT IOCBs to reserve 11002 **/ 11003 int 11004 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 11005 { 11006 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 11007 11008 if (phba->sli_rev == LPFC_SLI_REV4) { 11009 if (max_xri <= 100) 11010 return 10; 11011 else if (max_xri <= 256) 11012 return 25; 11013 else if (max_xri <= 512) 11014 return 50; 11015 else if (max_xri <= 1024) 11016 return 100; 11017 else if (max_xri <= 1536) 11018 return 150; 11019 else if (max_xri <= 2048) 11020 return 200; 11021 else 11022 return 250; 11023 } else 11024 return 0; 11025 } 11026 11027 /** 11028 * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve 11029 * @phba: pointer to lpfc hba data structure. 11030 * 11031 * returns the number of ELS/CT + NVMET IOCBs to reserve 11032 **/ 11033 int 11034 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba) 11035 { 11036 int max_xri = lpfc_sli4_get_els_iocb_cnt(phba); 11037 11038 if (phba->nvmet_support) 11039 max_xri += LPFC_NVMET_BUF_POST; 11040 return max_xri; 11041 } 11042 11043 11044 /** 11045 * lpfc_write_firmware - attempt to write a firmware image to the port 11046 * @fw: pointer to firmware image returned from request_firmware. 11047 * @phba: pointer to lpfc hba data structure. 11048 * 11049 **/ 11050 static void 11051 lpfc_write_firmware(const struct firmware *fw, void *context) 11052 { 11053 struct lpfc_hba *phba = (struct lpfc_hba *)context; 11054 char fwrev[FW_REV_STR_SIZE]; 11055 struct lpfc_grp_hdr *image; 11056 struct list_head dma_buffer_list; 11057 int i, rc = 0; 11058 struct lpfc_dmabuf *dmabuf, *next; 11059 uint32_t offset = 0, temp_offset = 0; 11060 uint32_t magic_number, ftype, fid, fsize; 11061 11062 /* It can be null in no-wait mode, sanity check */ 11063 if (!fw) { 11064 rc = -ENXIO; 11065 goto out; 11066 } 11067 image = (struct lpfc_grp_hdr *)fw->data; 11068 11069 magic_number = be32_to_cpu(image->magic_number); 11070 ftype = bf_get_be32(lpfc_grp_hdr_file_type, image); 11071 fid = bf_get_be32(lpfc_grp_hdr_id, image), 11072 fsize = be32_to_cpu(image->size); 11073 11074 INIT_LIST_HEAD(&dma_buffer_list); 11075 if ((magic_number != LPFC_GROUP_OJECT_MAGIC_G5 && 11076 magic_number != LPFC_GROUP_OJECT_MAGIC_G6) || 11077 ftype != LPFC_FILE_TYPE_GROUP || fsize != fw->size) { 11078 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11079 "3022 Invalid FW image found. " 11080 "Magic:%x Type:%x ID:%x Size %d %zd\n", 11081 magic_number, ftype, fid, fsize, fw->size); 11082 rc = -EINVAL; 11083 goto release_out; 11084 } 11085 lpfc_decode_firmware_rev(phba, fwrev, 1); 11086 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 11087 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11088 "3023 Updating Firmware, Current Version:%s " 11089 "New Version:%s\n", 11090 fwrev, image->revision); 11091 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 11092 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 11093 GFP_KERNEL); 11094 if (!dmabuf) { 11095 rc = -ENOMEM; 11096 goto release_out; 11097 } 11098 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 11099 SLI4_PAGE_SIZE, 11100 &dmabuf->phys, 11101 GFP_KERNEL); 11102 if (!dmabuf->virt) { 11103 kfree(dmabuf); 11104 rc = -ENOMEM; 11105 goto release_out; 11106 } 11107 list_add_tail(&dmabuf->list, &dma_buffer_list); 11108 } 11109 while (offset < fw->size) { 11110 temp_offset = offset; 11111 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 11112 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 11113 memcpy(dmabuf->virt, 11114 fw->data + temp_offset, 11115 fw->size - temp_offset); 11116 temp_offset = fw->size; 11117 break; 11118 } 11119 memcpy(dmabuf->virt, fw->data + temp_offset, 11120 SLI4_PAGE_SIZE); 11121 temp_offset += SLI4_PAGE_SIZE; 11122 } 11123 rc = lpfc_wr_object(phba, &dma_buffer_list, 11124 (fw->size - offset), &offset); 11125 if (rc) 11126 goto release_out; 11127 } 11128 rc = offset; 11129 } 11130 11131 release_out: 11132 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 11133 list_del(&dmabuf->list); 11134 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 11135 dmabuf->virt, dmabuf->phys); 11136 kfree(dmabuf); 11137 } 11138 release_firmware(fw); 11139 out: 11140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11141 "3024 Firmware update done: %d.\n", rc); 11142 return; 11143 } 11144 11145 /** 11146 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade 11147 * @phba: pointer to lpfc hba data structure. 11148 * 11149 * This routine is called to perform Linux generic firmware upgrade on device 11150 * that supports such feature. 11151 **/ 11152 int 11153 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade) 11154 { 11155 uint8_t file_name[ELX_MODEL_NAME_SIZE]; 11156 int ret; 11157 const struct firmware *fw; 11158 11159 /* Only supported on SLI4 interface type 2 for now */ 11160 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 11161 LPFC_SLI_INTF_IF_TYPE_2) 11162 return -EPERM; 11163 11164 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName); 11165 11166 if (fw_upgrade == INT_FW_UPGRADE) { 11167 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, 11168 file_name, &phba->pcidev->dev, 11169 GFP_KERNEL, (void *)phba, 11170 lpfc_write_firmware); 11171 } else if (fw_upgrade == RUN_FW_UPGRADE) { 11172 ret = request_firmware(&fw, file_name, &phba->pcidev->dev); 11173 if (!ret) 11174 lpfc_write_firmware(fw, (void *)phba); 11175 } else { 11176 ret = -EINVAL; 11177 } 11178 11179 return ret; 11180 } 11181 11182 /** 11183 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 11184 * @pdev: pointer to PCI device 11185 * @pid: pointer to PCI device identifier 11186 * 11187 * This routine is called from the kernel's PCI subsystem to device with 11188 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 11189 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 11190 * information of the device and driver to see if the driver state that it 11191 * can support this kind of device. If the match is successful, the driver 11192 * core invokes this routine. If this routine determines it can claim the HBA, 11193 * it does all the initialization that it needs to do to handle the HBA 11194 * properly. 11195 * 11196 * Return code 11197 * 0 - driver can claim the device 11198 * negative value - driver can not claim the device 11199 **/ 11200 static int 11201 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 11202 { 11203 struct lpfc_hba *phba; 11204 struct lpfc_vport *vport = NULL; 11205 struct Scsi_Host *shost = NULL; 11206 int error; 11207 uint32_t cfg_mode, intr_mode; 11208 11209 /* Allocate memory for HBA structure */ 11210 phba = lpfc_hba_alloc(pdev); 11211 if (!phba) 11212 return -ENOMEM; 11213 11214 /* Perform generic PCI device enabling operation */ 11215 error = lpfc_enable_pci_dev(phba); 11216 if (error) 11217 goto out_free_phba; 11218 11219 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 11220 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 11221 if (error) 11222 goto out_disable_pci_dev; 11223 11224 /* Set up SLI-4 specific device PCI memory space */ 11225 error = lpfc_sli4_pci_mem_setup(phba); 11226 if (error) { 11227 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11228 "1410 Failed to set up pci memory space.\n"); 11229 goto out_disable_pci_dev; 11230 } 11231 11232 /* Set up SLI-4 Specific device driver resources */ 11233 error = lpfc_sli4_driver_resource_setup(phba); 11234 if (error) { 11235 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11236 "1412 Failed to set up driver resource.\n"); 11237 goto out_unset_pci_mem_s4; 11238 } 11239 11240 INIT_LIST_HEAD(&phba->active_rrq_list); 11241 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 11242 11243 /* Set up common device driver resources */ 11244 error = lpfc_setup_driver_resource_phase2(phba); 11245 if (error) { 11246 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11247 "1414 Failed to set up driver resource.\n"); 11248 goto out_unset_driver_resource_s4; 11249 } 11250 11251 /* Get the default values for Model Name and Description */ 11252 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 11253 11254 /* Create SCSI host to the physical port */ 11255 error = lpfc_create_shost(phba); 11256 if (error) { 11257 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11258 "1415 Failed to create scsi host.\n"); 11259 goto out_unset_driver_resource; 11260 } 11261 11262 /* Configure sysfs attributes */ 11263 vport = phba->pport; 11264 error = lpfc_alloc_sysfs_attr(vport); 11265 if (error) { 11266 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11267 "1416 Failed to allocate sysfs attr\n"); 11268 goto out_destroy_shost; 11269 } 11270 11271 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 11272 /* Now, trying to enable interrupt and bring up the device */ 11273 cfg_mode = phba->cfg_use_msi; 11274 11275 /* Put device to a known state before enabling interrupt */ 11276 lpfc_stop_port(phba); 11277 11278 /* Configure and enable interrupt */ 11279 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 11280 if (intr_mode == LPFC_INTR_ERROR) { 11281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11282 "0426 Failed to enable interrupt.\n"); 11283 error = -ENODEV; 11284 goto out_free_sysfs_attr; 11285 } 11286 /* Default to single EQ for non-MSI-X */ 11287 if (phba->intr_type != MSIX) { 11288 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 11289 phba->cfg_fcp_io_channel = 1; 11290 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 11291 phba->cfg_nvme_io_channel = 1; 11292 if (phba->nvmet_support) 11293 phba->cfg_nvmet_mrq = 1; 11294 } 11295 phba->io_channel_irqs = 1; 11296 } 11297 11298 /* Set up SLI-4 HBA */ 11299 if (lpfc_sli4_hba_setup(phba)) { 11300 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11301 "1421 Failed to set up hba\n"); 11302 error = -ENODEV; 11303 goto out_disable_intr; 11304 } 11305 11306 /* Log the current active interrupt mode */ 11307 phba->intr_mode = intr_mode; 11308 lpfc_log_intr_mode(phba, intr_mode); 11309 11310 /* Perform post initialization setup */ 11311 lpfc_post_init_setup(phba); 11312 11313 /* NVME support in FW earlier in the driver load corrects the 11314 * FC4 type making a check for nvme_support unnecessary. 11315 */ 11316 if ((phba->nvmet_support == 0) && 11317 (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 11318 /* Create NVME binding with nvme_fc_transport. This 11319 * ensures the vport is initialized. If the localport 11320 * create fails, it should not unload the driver to 11321 * support field issues. 11322 */ 11323 error = lpfc_nvme_create_localport(vport); 11324 if (error) { 11325 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11326 "6004 NVME registration failed, " 11327 "error x%x\n", 11328 error); 11329 } 11330 } 11331 11332 /* check for firmware upgrade or downgrade */ 11333 if (phba->cfg_request_firmware_upgrade) 11334 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE); 11335 11336 /* Check if there are static vports to be created. */ 11337 lpfc_create_static_vport(phba); 11338 return 0; 11339 11340 out_disable_intr: 11341 lpfc_sli4_disable_intr(phba); 11342 out_free_sysfs_attr: 11343 lpfc_free_sysfs_attr(vport); 11344 out_destroy_shost: 11345 lpfc_destroy_shost(phba); 11346 out_unset_driver_resource: 11347 lpfc_unset_driver_resource_phase2(phba); 11348 out_unset_driver_resource_s4: 11349 lpfc_sli4_driver_resource_unset(phba); 11350 out_unset_pci_mem_s4: 11351 lpfc_sli4_pci_mem_unset(phba); 11352 out_disable_pci_dev: 11353 lpfc_disable_pci_dev(phba); 11354 if (shost) 11355 scsi_host_put(shost); 11356 out_free_phba: 11357 lpfc_hba_free(phba); 11358 return error; 11359 } 11360 11361 /** 11362 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 11363 * @pdev: pointer to PCI device 11364 * 11365 * This routine is called from the kernel's PCI subsystem to device with 11366 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 11367 * removed from PCI bus, it performs all the necessary cleanup for the HBA 11368 * device to be removed from the PCI subsystem properly. 11369 **/ 11370 static void 11371 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 11372 { 11373 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11374 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 11375 struct lpfc_vport **vports; 11376 struct lpfc_hba *phba = vport->phba; 11377 int i; 11378 11379 /* Mark the device unloading flag */ 11380 spin_lock_irq(&phba->hbalock); 11381 vport->load_flag |= FC_UNLOADING; 11382 spin_unlock_irq(&phba->hbalock); 11383 11384 /* Free the HBA sysfs attributes */ 11385 lpfc_free_sysfs_attr(vport); 11386 11387 /* Release all the vports against this physical port */ 11388 vports = lpfc_create_vport_work_array(phba); 11389 if (vports != NULL) 11390 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 11391 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 11392 continue; 11393 fc_vport_terminate(vports[i]->fc_vport); 11394 } 11395 lpfc_destroy_vport_work_array(phba, vports); 11396 11397 /* Remove FC host and then SCSI host with the physical port */ 11398 fc_remove_host(shost); 11399 scsi_remove_host(shost); 11400 11401 /* Perform ndlp cleanup on the physical port. The nvme and nvmet 11402 * localports are destroyed after to cleanup all transport memory. 11403 */ 11404 lpfc_cleanup(vport); 11405 lpfc_nvmet_destroy_targetport(phba); 11406 lpfc_nvme_destroy_localport(vport); 11407 11408 /* 11409 * Bring down the SLI Layer. This step disables all interrupts, 11410 * clears the rings, discards all mailbox commands, and resets 11411 * the HBA FCoE function. 11412 */ 11413 lpfc_debugfs_terminate(vport); 11414 lpfc_sli4_hba_unset(phba); 11415 11416 spin_lock_irq(&phba->hbalock); 11417 list_del_init(&vport->listentry); 11418 spin_unlock_irq(&phba->hbalock); 11419 11420 /* Perform scsi free before driver resource_unset since scsi 11421 * buffers are released to their corresponding pools here. 11422 */ 11423 lpfc_scsi_free(phba); 11424 lpfc_nvme_free(phba); 11425 lpfc_free_iocb_list(phba); 11426 11427 lpfc_sli4_driver_resource_unset(phba); 11428 11429 /* Unmap adapter Control and Doorbell registers */ 11430 lpfc_sli4_pci_mem_unset(phba); 11431 11432 /* Release PCI resources and disable device's PCI function */ 11433 scsi_host_put(shost); 11434 lpfc_disable_pci_dev(phba); 11435 11436 /* Finally, free the driver's device data structure */ 11437 lpfc_hba_free(phba); 11438 11439 return; 11440 } 11441 11442 /** 11443 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 11444 * @pdev: pointer to PCI device 11445 * @msg: power management message 11446 * 11447 * This routine is called from the kernel's PCI subsystem to support system 11448 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 11449 * this method, it quiesces the device by stopping the driver's worker 11450 * thread for the device, turning off device's interrupt and DMA, and bring 11451 * the device offline. Note that as the driver implements the minimum PM 11452 * requirements to a power-aware driver's PM support for suspend/resume -- all 11453 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 11454 * method call will be treated as SUSPEND and the driver will fully 11455 * reinitialize its device during resume() method call, the driver will set 11456 * device to PCI_D3hot state in PCI config space instead of setting it 11457 * according to the @msg provided by the PM. 11458 * 11459 * Return code 11460 * 0 - driver suspended the device 11461 * Error otherwise 11462 **/ 11463 static int 11464 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 11465 { 11466 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11467 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11468 11469 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11470 "2843 PCI device Power Management suspend.\n"); 11471 11472 /* Bring down the device */ 11473 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 11474 lpfc_offline(phba); 11475 kthread_stop(phba->worker_thread); 11476 11477 /* Disable interrupt from device */ 11478 lpfc_sli4_disable_intr(phba); 11479 lpfc_sli4_queue_destroy(phba); 11480 11481 /* Save device state to PCI config space */ 11482 pci_save_state(pdev); 11483 pci_set_power_state(pdev, PCI_D3hot); 11484 11485 return 0; 11486 } 11487 11488 /** 11489 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 11490 * @pdev: pointer to PCI device 11491 * 11492 * This routine is called from the kernel's PCI subsystem to support system 11493 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 11494 * this method, it restores the device's PCI config space state and fully 11495 * reinitializes the device and brings it online. Note that as the driver 11496 * implements the minimum PM requirements to a power-aware driver's PM for 11497 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 11498 * to the suspend() method call will be treated as SUSPEND and the driver 11499 * will fully reinitialize its device during resume() method call, the device 11500 * will be set to PCI_D0 directly in PCI config space before restoring the 11501 * state. 11502 * 11503 * Return code 11504 * 0 - driver suspended the device 11505 * Error otherwise 11506 **/ 11507 static int 11508 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 11509 { 11510 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11511 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11512 uint32_t intr_mode; 11513 int error; 11514 11515 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11516 "0292 PCI device Power Management resume.\n"); 11517 11518 /* Restore device state from PCI config space */ 11519 pci_set_power_state(pdev, PCI_D0); 11520 pci_restore_state(pdev); 11521 11522 /* 11523 * As the new kernel behavior of pci_restore_state() API call clears 11524 * device saved_state flag, need to save the restored state again. 11525 */ 11526 pci_save_state(pdev); 11527 11528 if (pdev->is_busmaster) 11529 pci_set_master(pdev); 11530 11531 /* Startup the kernel thread for this host adapter. */ 11532 phba->worker_thread = kthread_run(lpfc_do_work, phba, 11533 "lpfc_worker_%d", phba->brd_no); 11534 if (IS_ERR(phba->worker_thread)) { 11535 error = PTR_ERR(phba->worker_thread); 11536 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11537 "0293 PM resume failed to start worker " 11538 "thread: error=x%x.\n", error); 11539 return error; 11540 } 11541 11542 /* Configure and enable interrupt */ 11543 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 11544 if (intr_mode == LPFC_INTR_ERROR) { 11545 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11546 "0294 PM resume Failed to enable interrupt\n"); 11547 return -EIO; 11548 } else 11549 phba->intr_mode = intr_mode; 11550 11551 /* Restart HBA and bring it online */ 11552 lpfc_sli_brdrestart(phba); 11553 lpfc_online(phba); 11554 11555 /* Log the current active interrupt mode */ 11556 lpfc_log_intr_mode(phba, phba->intr_mode); 11557 11558 return 0; 11559 } 11560 11561 /** 11562 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 11563 * @phba: pointer to lpfc hba data structure. 11564 * 11565 * This routine is called to prepare the SLI4 device for PCI slot recover. It 11566 * aborts all the outstanding SCSI I/Os to the pci device. 11567 **/ 11568 static void 11569 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 11570 { 11571 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11572 "2828 PCI channel I/O abort preparing for recovery\n"); 11573 /* 11574 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 11575 * and let the SCSI mid-layer to retry them to recover. 11576 */ 11577 lpfc_sli_abort_fcp_rings(phba); 11578 } 11579 11580 /** 11581 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 11582 * @phba: pointer to lpfc hba data structure. 11583 * 11584 * This routine is called to prepare the SLI4 device for PCI slot reset. It 11585 * disables the device interrupt and pci device, and aborts the internal FCP 11586 * pending I/Os. 11587 **/ 11588 static void 11589 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 11590 { 11591 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11592 "2826 PCI channel disable preparing for reset\n"); 11593 11594 /* Block any management I/Os to the device */ 11595 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); 11596 11597 /* Block all SCSI devices' I/Os on the host */ 11598 lpfc_scsi_dev_block(phba); 11599 11600 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 11601 lpfc_sli_flush_fcp_rings(phba); 11602 11603 /* stop all timers */ 11604 lpfc_stop_hba_timers(phba); 11605 11606 /* Disable interrupt and pci device */ 11607 lpfc_sli4_disable_intr(phba); 11608 lpfc_sli4_queue_destroy(phba); 11609 pci_disable_device(phba->pcidev); 11610 } 11611 11612 /** 11613 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 11614 * @phba: pointer to lpfc hba data structure. 11615 * 11616 * This routine is called to prepare the SLI4 device for PCI slot permanently 11617 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 11618 * pending I/Os. 11619 **/ 11620 static void 11621 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 11622 { 11623 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11624 "2827 PCI channel permanent disable for failure\n"); 11625 11626 /* Block all SCSI devices' I/Os on the host */ 11627 lpfc_scsi_dev_block(phba); 11628 11629 /* stop all timers */ 11630 lpfc_stop_hba_timers(phba); 11631 11632 /* Clean up all driver's outstanding SCSI I/Os */ 11633 lpfc_sli_flush_fcp_rings(phba); 11634 } 11635 11636 /** 11637 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 11638 * @pdev: pointer to PCI device. 11639 * @state: the current PCI connection state. 11640 * 11641 * This routine is called from the PCI subsystem for error handling to device 11642 * with SLI-4 interface spec. This function is called by the PCI subsystem 11643 * after a PCI bus error affecting this device has been detected. When this 11644 * function is invoked, it will need to stop all the I/Os and interrupt(s) 11645 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 11646 * for the PCI subsystem to perform proper recovery as desired. 11647 * 11648 * Return codes 11649 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11650 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11651 **/ 11652 static pci_ers_result_t 11653 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 11654 { 11655 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11656 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11657 11658 switch (state) { 11659 case pci_channel_io_normal: 11660 /* Non-fatal error, prepare for recovery */ 11661 lpfc_sli4_prep_dev_for_recover(phba); 11662 return PCI_ERS_RESULT_CAN_RECOVER; 11663 case pci_channel_io_frozen: 11664 /* Fatal error, prepare for slot reset */ 11665 lpfc_sli4_prep_dev_for_reset(phba); 11666 return PCI_ERS_RESULT_NEED_RESET; 11667 case pci_channel_io_perm_failure: 11668 /* Permanent failure, prepare for device down */ 11669 lpfc_sli4_prep_dev_for_perm_failure(phba); 11670 return PCI_ERS_RESULT_DISCONNECT; 11671 default: 11672 /* Unknown state, prepare and request slot reset */ 11673 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11674 "2825 Unknown PCI error state: x%x\n", state); 11675 lpfc_sli4_prep_dev_for_reset(phba); 11676 return PCI_ERS_RESULT_NEED_RESET; 11677 } 11678 } 11679 11680 /** 11681 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 11682 * @pdev: pointer to PCI device. 11683 * 11684 * This routine is called from the PCI subsystem for error handling to device 11685 * with SLI-4 interface spec. It is called after PCI bus has been reset to 11686 * restart the PCI card from scratch, as if from a cold-boot. During the 11687 * PCI subsystem error recovery, after the driver returns 11688 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 11689 * recovery and then call this routine before calling the .resume method to 11690 * recover the device. This function will initialize the HBA device, enable 11691 * the interrupt, but it will just put the HBA to offline state without 11692 * passing any I/O traffic. 11693 * 11694 * Return codes 11695 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11696 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11697 */ 11698 static pci_ers_result_t 11699 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 11700 { 11701 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11702 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11703 struct lpfc_sli *psli = &phba->sli; 11704 uint32_t intr_mode; 11705 11706 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 11707 if (pci_enable_device_mem(pdev)) { 11708 printk(KERN_ERR "lpfc: Cannot re-enable " 11709 "PCI device after reset.\n"); 11710 return PCI_ERS_RESULT_DISCONNECT; 11711 } 11712 11713 pci_restore_state(pdev); 11714 11715 /* 11716 * As the new kernel behavior of pci_restore_state() API call clears 11717 * device saved_state flag, need to save the restored state again. 11718 */ 11719 pci_save_state(pdev); 11720 11721 if (pdev->is_busmaster) 11722 pci_set_master(pdev); 11723 11724 spin_lock_irq(&phba->hbalock); 11725 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 11726 spin_unlock_irq(&phba->hbalock); 11727 11728 /* Configure and enable interrupt */ 11729 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 11730 if (intr_mode == LPFC_INTR_ERROR) { 11731 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11732 "2824 Cannot re-enable interrupt after " 11733 "slot reset.\n"); 11734 return PCI_ERS_RESULT_DISCONNECT; 11735 } else 11736 phba->intr_mode = intr_mode; 11737 11738 /* Log the current active interrupt mode */ 11739 lpfc_log_intr_mode(phba, phba->intr_mode); 11740 11741 return PCI_ERS_RESULT_RECOVERED; 11742 } 11743 11744 /** 11745 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 11746 * @pdev: pointer to PCI device 11747 * 11748 * This routine is called from the PCI subsystem for error handling to device 11749 * with SLI-4 interface spec. It is called when kernel error recovery tells 11750 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 11751 * error recovery. After this call, traffic can start to flow from this device 11752 * again. 11753 **/ 11754 static void 11755 lpfc_io_resume_s4(struct pci_dev *pdev) 11756 { 11757 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11758 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11759 11760 /* 11761 * In case of slot reset, as function reset is performed through 11762 * mailbox command which needs DMA to be enabled, this operation 11763 * has to be moved to the io resume phase. Taking device offline 11764 * will perform the necessary cleanup. 11765 */ 11766 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 11767 /* Perform device reset */ 11768 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 11769 lpfc_offline(phba); 11770 lpfc_sli_brdrestart(phba); 11771 /* Bring the device back online */ 11772 lpfc_online(phba); 11773 } 11774 11775 /* Clean up Advanced Error Reporting (AER) if needed */ 11776 if (phba->hba_flag & HBA_AER_ENABLED) 11777 pci_cleanup_aer_uncorrect_error_status(pdev); 11778 } 11779 11780 /** 11781 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 11782 * @pdev: pointer to PCI device 11783 * @pid: pointer to PCI device identifier 11784 * 11785 * This routine is to be registered to the kernel's PCI subsystem. When an 11786 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 11787 * at PCI device-specific information of the device and driver to see if the 11788 * driver state that it can support this kind of device. If the match is 11789 * successful, the driver core invokes this routine. This routine dispatches 11790 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 11791 * do all the initialization that it needs to do to handle the HBA device 11792 * properly. 11793 * 11794 * Return code 11795 * 0 - driver can claim the device 11796 * negative value - driver can not claim the device 11797 **/ 11798 static int 11799 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 11800 { 11801 int rc; 11802 struct lpfc_sli_intf intf; 11803 11804 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 11805 return -ENODEV; 11806 11807 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 11808 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 11809 rc = lpfc_pci_probe_one_s4(pdev, pid); 11810 else 11811 rc = lpfc_pci_probe_one_s3(pdev, pid); 11812 11813 return rc; 11814 } 11815 11816 /** 11817 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 11818 * @pdev: pointer to PCI device 11819 * 11820 * This routine is to be registered to the kernel's PCI subsystem. When an 11821 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 11822 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 11823 * remove routine, which will perform all the necessary cleanup for the 11824 * device to be removed from the PCI subsystem properly. 11825 **/ 11826 static void 11827 lpfc_pci_remove_one(struct pci_dev *pdev) 11828 { 11829 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11830 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11831 11832 switch (phba->pci_dev_grp) { 11833 case LPFC_PCI_DEV_LP: 11834 lpfc_pci_remove_one_s3(pdev); 11835 break; 11836 case LPFC_PCI_DEV_OC: 11837 lpfc_pci_remove_one_s4(pdev); 11838 break; 11839 default: 11840 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11841 "1424 Invalid PCI device group: 0x%x\n", 11842 phba->pci_dev_grp); 11843 break; 11844 } 11845 return; 11846 } 11847 11848 /** 11849 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 11850 * @pdev: pointer to PCI device 11851 * @msg: power management message 11852 * 11853 * This routine is to be registered to the kernel's PCI subsystem to support 11854 * system Power Management (PM). When PM invokes this method, it dispatches 11855 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 11856 * suspend the device. 11857 * 11858 * Return code 11859 * 0 - driver suspended the device 11860 * Error otherwise 11861 **/ 11862 static int 11863 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 11864 { 11865 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11866 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11867 int rc = -ENODEV; 11868 11869 switch (phba->pci_dev_grp) { 11870 case LPFC_PCI_DEV_LP: 11871 rc = lpfc_pci_suspend_one_s3(pdev, msg); 11872 break; 11873 case LPFC_PCI_DEV_OC: 11874 rc = lpfc_pci_suspend_one_s4(pdev, msg); 11875 break; 11876 default: 11877 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11878 "1425 Invalid PCI device group: 0x%x\n", 11879 phba->pci_dev_grp); 11880 break; 11881 } 11882 return rc; 11883 } 11884 11885 /** 11886 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 11887 * @pdev: pointer to PCI device 11888 * 11889 * This routine is to be registered to the kernel's PCI subsystem to support 11890 * system Power Management (PM). When PM invokes this method, it dispatches 11891 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 11892 * resume the device. 11893 * 11894 * Return code 11895 * 0 - driver suspended the device 11896 * Error otherwise 11897 **/ 11898 static int 11899 lpfc_pci_resume_one(struct pci_dev *pdev) 11900 { 11901 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11902 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11903 int rc = -ENODEV; 11904 11905 switch (phba->pci_dev_grp) { 11906 case LPFC_PCI_DEV_LP: 11907 rc = lpfc_pci_resume_one_s3(pdev); 11908 break; 11909 case LPFC_PCI_DEV_OC: 11910 rc = lpfc_pci_resume_one_s4(pdev); 11911 break; 11912 default: 11913 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11914 "1426 Invalid PCI device group: 0x%x\n", 11915 phba->pci_dev_grp); 11916 break; 11917 } 11918 return rc; 11919 } 11920 11921 /** 11922 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 11923 * @pdev: pointer to PCI device. 11924 * @state: the current PCI connection state. 11925 * 11926 * This routine is registered to the PCI subsystem for error handling. This 11927 * function is called by the PCI subsystem after a PCI bus error affecting 11928 * this device has been detected. When this routine is invoked, it dispatches 11929 * the action to the proper SLI-3 or SLI-4 device error detected handling 11930 * routine, which will perform the proper error detected operation. 11931 * 11932 * Return codes 11933 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11934 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11935 **/ 11936 static pci_ers_result_t 11937 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 11938 { 11939 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11940 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11941 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 11942 11943 switch (phba->pci_dev_grp) { 11944 case LPFC_PCI_DEV_LP: 11945 rc = lpfc_io_error_detected_s3(pdev, state); 11946 break; 11947 case LPFC_PCI_DEV_OC: 11948 rc = lpfc_io_error_detected_s4(pdev, state); 11949 break; 11950 default: 11951 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11952 "1427 Invalid PCI device group: 0x%x\n", 11953 phba->pci_dev_grp); 11954 break; 11955 } 11956 return rc; 11957 } 11958 11959 /** 11960 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 11961 * @pdev: pointer to PCI device. 11962 * 11963 * This routine is registered to the PCI subsystem for error handling. This 11964 * function is called after PCI bus has been reset to restart the PCI card 11965 * from scratch, as if from a cold-boot. When this routine is invoked, it 11966 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 11967 * routine, which will perform the proper device reset. 11968 * 11969 * Return codes 11970 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11971 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11972 **/ 11973 static pci_ers_result_t 11974 lpfc_io_slot_reset(struct pci_dev *pdev) 11975 { 11976 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11977 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11978 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 11979 11980 switch (phba->pci_dev_grp) { 11981 case LPFC_PCI_DEV_LP: 11982 rc = lpfc_io_slot_reset_s3(pdev); 11983 break; 11984 case LPFC_PCI_DEV_OC: 11985 rc = lpfc_io_slot_reset_s4(pdev); 11986 break; 11987 default: 11988 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11989 "1428 Invalid PCI device group: 0x%x\n", 11990 phba->pci_dev_grp); 11991 break; 11992 } 11993 return rc; 11994 } 11995 11996 /** 11997 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 11998 * @pdev: pointer to PCI device 11999 * 12000 * This routine is registered to the PCI subsystem for error handling. It 12001 * is called when kernel error recovery tells the lpfc driver that it is 12002 * OK to resume normal PCI operation after PCI bus error recovery. When 12003 * this routine is invoked, it dispatches the action to the proper SLI-3 12004 * or SLI-4 device io_resume routine, which will resume the device operation. 12005 **/ 12006 static void 12007 lpfc_io_resume(struct pci_dev *pdev) 12008 { 12009 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12010 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12011 12012 switch (phba->pci_dev_grp) { 12013 case LPFC_PCI_DEV_LP: 12014 lpfc_io_resume_s3(pdev); 12015 break; 12016 case LPFC_PCI_DEV_OC: 12017 lpfc_io_resume_s4(pdev); 12018 break; 12019 default: 12020 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12021 "1429 Invalid PCI device group: 0x%x\n", 12022 phba->pci_dev_grp); 12023 break; 12024 } 12025 return; 12026 } 12027 12028 /** 12029 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter 12030 * @phba: pointer to lpfc hba data structure. 12031 * 12032 * This routine checks to see if OAS is supported for this adapter. If 12033 * supported, the configure Flash Optimized Fabric flag is set. Otherwise, 12034 * the enable oas flag is cleared and the pool created for OAS device data 12035 * is destroyed. 12036 * 12037 **/ 12038 void 12039 lpfc_sli4_oas_verify(struct lpfc_hba *phba) 12040 { 12041 12042 if (!phba->cfg_EnableXLane) 12043 return; 12044 12045 if (phba->sli4_hba.pc_sli4_params.oas_supported) { 12046 phba->cfg_fof = 1; 12047 } else { 12048 phba->cfg_fof = 0; 12049 if (phba->device_data_mem_pool) 12050 mempool_destroy(phba->device_data_mem_pool); 12051 phba->device_data_mem_pool = NULL; 12052 } 12053 12054 return; 12055 } 12056 12057 /** 12058 * lpfc_fof_queue_setup - Set up all the fof queues 12059 * @phba: pointer to lpfc hba data structure. 12060 * 12061 * This routine is invoked to set up all the fof queues for the FC HBA 12062 * operation. 12063 * 12064 * Return codes 12065 * 0 - successful 12066 * -ENOMEM - No available memory 12067 **/ 12068 int 12069 lpfc_fof_queue_setup(struct lpfc_hba *phba) 12070 { 12071 struct lpfc_sli_ring *pring; 12072 int rc; 12073 12074 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX); 12075 if (rc) 12076 return -ENOMEM; 12077 12078 if (phba->cfg_fof) { 12079 12080 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq, 12081 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP); 12082 if (rc) 12083 goto out_oas_cq; 12084 12085 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq, 12086 phba->sli4_hba.oas_cq, LPFC_FCP); 12087 if (rc) 12088 goto out_oas_wq; 12089 12090 /* Bind this CQ/WQ to the NVME ring */ 12091 pring = phba->sli4_hba.oas_wq->pring; 12092 pring->sli.sli4.wqp = 12093 (void *)phba->sli4_hba.oas_wq; 12094 phba->sli4_hba.oas_cq->pring = pring; 12095 } 12096 12097 return 0; 12098 12099 out_oas_wq: 12100 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq); 12101 out_oas_cq: 12102 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq); 12103 return rc; 12104 12105 } 12106 12107 /** 12108 * lpfc_fof_queue_create - Create all the fof queues 12109 * @phba: pointer to lpfc hba data structure. 12110 * 12111 * This routine is invoked to allocate all the fof queues for the FC HBA 12112 * operation. For each SLI4 queue type, the parameters such as queue entry 12113 * count (queue depth) shall be taken from the module parameter. For now, 12114 * we just use some constant number as place holder. 12115 * 12116 * Return codes 12117 * 0 - successful 12118 * -ENOMEM - No availble memory 12119 * -EIO - The mailbox failed to complete successfully. 12120 **/ 12121 int 12122 lpfc_fof_queue_create(struct lpfc_hba *phba) 12123 { 12124 struct lpfc_queue *qdesc; 12125 uint32_t wqesize; 12126 12127 /* Create FOF EQ */ 12128 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 12129 phba->sli4_hba.eq_ecount); 12130 if (!qdesc) 12131 goto out_error; 12132 12133 phba->sli4_hba.fof_eq = qdesc; 12134 12135 if (phba->cfg_fof) { 12136 12137 /* Create OAS CQ */ 12138 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 12139 phba->sli4_hba.cq_ecount); 12140 if (!qdesc) 12141 goto out_error; 12142 12143 phba->sli4_hba.oas_cq = qdesc; 12144 12145 /* Create OAS WQ */ 12146 wqesize = (phba->fcp_embed_io) ? 12147 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; 12148 qdesc = lpfc_sli4_queue_alloc(phba, wqesize, 12149 phba->sli4_hba.wq_ecount); 12150 12151 if (!qdesc) 12152 goto out_error; 12153 12154 phba->sli4_hba.oas_wq = qdesc; 12155 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 12156 12157 } 12158 return 0; 12159 12160 out_error: 12161 lpfc_fof_queue_destroy(phba); 12162 return -ENOMEM; 12163 } 12164 12165 /** 12166 * lpfc_fof_queue_destroy - Destroy all the fof queues 12167 * @phba: pointer to lpfc hba data structure. 12168 * 12169 * This routine is invoked to release all the SLI4 queues with the FC HBA 12170 * operation. 12171 * 12172 * Return codes 12173 * 0 - successful 12174 **/ 12175 int 12176 lpfc_fof_queue_destroy(struct lpfc_hba *phba) 12177 { 12178 /* Release FOF Event queue */ 12179 if (phba->sli4_hba.fof_eq != NULL) { 12180 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq); 12181 phba->sli4_hba.fof_eq = NULL; 12182 } 12183 12184 /* Release OAS Completion queue */ 12185 if (phba->sli4_hba.oas_cq != NULL) { 12186 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq); 12187 phba->sli4_hba.oas_cq = NULL; 12188 } 12189 12190 /* Release OAS Work queue */ 12191 if (phba->sli4_hba.oas_wq != NULL) { 12192 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq); 12193 phba->sli4_hba.oas_wq = NULL; 12194 } 12195 return 0; 12196 } 12197 12198 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 12199 12200 static const struct pci_error_handlers lpfc_err_handler = { 12201 .error_detected = lpfc_io_error_detected, 12202 .slot_reset = lpfc_io_slot_reset, 12203 .resume = lpfc_io_resume, 12204 }; 12205 12206 static struct pci_driver lpfc_driver = { 12207 .name = LPFC_DRIVER_NAME, 12208 .id_table = lpfc_id_table, 12209 .probe = lpfc_pci_probe_one, 12210 .remove = lpfc_pci_remove_one, 12211 .shutdown = lpfc_pci_remove_one, 12212 .suspend = lpfc_pci_suspend_one, 12213 .resume = lpfc_pci_resume_one, 12214 .err_handler = &lpfc_err_handler, 12215 }; 12216 12217 static const struct file_operations lpfc_mgmt_fop = { 12218 .owner = THIS_MODULE, 12219 }; 12220 12221 static struct miscdevice lpfc_mgmt_dev = { 12222 .minor = MISC_DYNAMIC_MINOR, 12223 .name = "lpfcmgmt", 12224 .fops = &lpfc_mgmt_fop, 12225 }; 12226 12227 /** 12228 * lpfc_init - lpfc module initialization routine 12229 * 12230 * This routine is to be invoked when the lpfc module is loaded into the 12231 * kernel. The special kernel macro module_init() is used to indicate the 12232 * role of this routine to the kernel as lpfc module entry point. 12233 * 12234 * Return codes 12235 * 0 - successful 12236 * -ENOMEM - FC attach transport failed 12237 * all others - failed 12238 */ 12239 static int __init 12240 lpfc_init(void) 12241 { 12242 int error = 0; 12243 12244 printk(LPFC_MODULE_DESC "\n"); 12245 printk(LPFC_COPYRIGHT "\n"); 12246 12247 error = misc_register(&lpfc_mgmt_dev); 12248 if (error) 12249 printk(KERN_ERR "Could not register lpfcmgmt device, " 12250 "misc_register returned with status %d", error); 12251 12252 lpfc_transport_functions.vport_create = lpfc_vport_create; 12253 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 12254 lpfc_transport_template = 12255 fc_attach_transport(&lpfc_transport_functions); 12256 if (lpfc_transport_template == NULL) 12257 return -ENOMEM; 12258 lpfc_vport_transport_template = 12259 fc_attach_transport(&lpfc_vport_transport_functions); 12260 if (lpfc_vport_transport_template == NULL) { 12261 fc_release_transport(lpfc_transport_template); 12262 return -ENOMEM; 12263 } 12264 12265 /* Initialize in case vector mapping is needed */ 12266 lpfc_used_cpu = NULL; 12267 lpfc_present_cpu = num_present_cpus(); 12268 12269 error = pci_register_driver(&lpfc_driver); 12270 if (error) { 12271 fc_release_transport(lpfc_transport_template); 12272 fc_release_transport(lpfc_vport_transport_template); 12273 } 12274 12275 return error; 12276 } 12277 12278 /** 12279 * lpfc_exit - lpfc module removal routine 12280 * 12281 * This routine is invoked when the lpfc module is removed from the kernel. 12282 * The special kernel macro module_exit() is used to indicate the role of 12283 * this routine to the kernel as lpfc module exit point. 12284 */ 12285 static void __exit 12286 lpfc_exit(void) 12287 { 12288 misc_deregister(&lpfc_mgmt_dev); 12289 pci_unregister_driver(&lpfc_driver); 12290 fc_release_transport(lpfc_transport_template); 12291 fc_release_transport(lpfc_vport_transport_template); 12292 if (_dump_buf_data) { 12293 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 12294 "_dump_buf_data at 0x%p\n", 12295 (1L << _dump_buf_data_order), _dump_buf_data); 12296 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 12297 } 12298 12299 if (_dump_buf_dif) { 12300 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 12301 "_dump_buf_dif at 0x%p\n", 12302 (1L << _dump_buf_dif_order), _dump_buf_dif); 12303 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 12304 } 12305 kfree(lpfc_used_cpu); 12306 idr_destroy(&lpfc_hba_index); 12307 } 12308 12309 module_init(lpfc_init); 12310 module_exit(lpfc_exit); 12311 MODULE_LICENSE("GPL"); 12312 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 12313 MODULE_AUTHOR("Broadcom"); 12314 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 12315