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(unsigned long ptr) 1142 { 1143 struct lpfc_hba *phba; 1144 uint32_t tmo_posted; 1145 unsigned long iflag; 1146 1147 phba = (struct lpfc_hba *)ptr; 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(unsigned long ptr) 1176 { 1177 struct lpfc_hba *phba; 1178 unsigned long iflag; 1179 1180 phba = (struct lpfc_hba *)ptr; 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 setup_timer(&vport->fc_disctmo, lpfc_disc_timeout, 3941 (unsigned long)vport); 3942 3943 setup_timer(&vport->els_tmofunc, lpfc_els_timeout, 3944 (unsigned long)vport); 3945 3946 setup_timer(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 3947 (unsigned long)vport); 3948 3949 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 3950 if (error) 3951 goto out_put_shost; 3952 3953 spin_lock_irq(&phba->hbalock); 3954 list_add_tail(&vport->listentry, &phba->port_list); 3955 spin_unlock_irq(&phba->hbalock); 3956 return vport; 3957 3958 out_put_shost: 3959 scsi_host_put(shost); 3960 out: 3961 return NULL; 3962 } 3963 3964 /** 3965 * destroy_port - destroy an FC port 3966 * @vport: pointer to an lpfc virtual N_Port data structure. 3967 * 3968 * This routine destroys a FC port from the upper layer protocol. All the 3969 * resources associated with the port are released. 3970 **/ 3971 void 3972 destroy_port(struct lpfc_vport *vport) 3973 { 3974 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3975 struct lpfc_hba *phba = vport->phba; 3976 3977 lpfc_debugfs_terminate(vport); 3978 fc_remove_host(shost); 3979 scsi_remove_host(shost); 3980 3981 spin_lock_irq(&phba->hbalock); 3982 list_del_init(&vport->listentry); 3983 spin_unlock_irq(&phba->hbalock); 3984 3985 lpfc_cleanup(vport); 3986 return; 3987 } 3988 3989 /** 3990 * lpfc_get_instance - Get a unique integer ID 3991 * 3992 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 3993 * uses the kernel idr facility to perform the task. 3994 * 3995 * Return codes: 3996 * instance - a unique integer ID allocated as the new instance. 3997 * -1 - lpfc get instance failed. 3998 **/ 3999 int 4000 lpfc_get_instance(void) 4001 { 4002 int ret; 4003 4004 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL); 4005 return ret < 0 ? -1 : ret; 4006 } 4007 4008 /** 4009 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 4010 * @shost: pointer to SCSI host data structure. 4011 * @time: elapsed time of the scan in jiffies. 4012 * 4013 * This routine is called by the SCSI layer with a SCSI host to determine 4014 * whether the scan host is finished. 4015 * 4016 * Note: there is no scan_start function as adapter initialization will have 4017 * asynchronously kicked off the link initialization. 4018 * 4019 * Return codes 4020 * 0 - SCSI host scan is not over yet. 4021 * 1 - SCSI host scan is over. 4022 **/ 4023 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 4024 { 4025 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4026 struct lpfc_hba *phba = vport->phba; 4027 int stat = 0; 4028 4029 spin_lock_irq(shost->host_lock); 4030 4031 if (vport->load_flag & FC_UNLOADING) { 4032 stat = 1; 4033 goto finished; 4034 } 4035 if (time >= msecs_to_jiffies(30 * 1000)) { 4036 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4037 "0461 Scanning longer than 30 " 4038 "seconds. Continuing initialization\n"); 4039 stat = 1; 4040 goto finished; 4041 } 4042 if (time >= msecs_to_jiffies(15 * 1000) && 4043 phba->link_state <= LPFC_LINK_DOWN) { 4044 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4045 "0465 Link down longer than 15 " 4046 "seconds. Continuing initialization\n"); 4047 stat = 1; 4048 goto finished; 4049 } 4050 4051 if (vport->port_state != LPFC_VPORT_READY) 4052 goto finished; 4053 if (vport->num_disc_nodes || vport->fc_prli_sent) 4054 goto finished; 4055 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000)) 4056 goto finished; 4057 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 4058 goto finished; 4059 4060 stat = 1; 4061 4062 finished: 4063 spin_unlock_irq(shost->host_lock); 4064 return stat; 4065 } 4066 4067 /** 4068 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 4069 * @shost: pointer to SCSI host data structure. 4070 * 4071 * This routine initializes a given SCSI host attributes on a FC port. The 4072 * SCSI host can be either on top of a physical port or a virtual port. 4073 **/ 4074 void lpfc_host_attrib_init(struct Scsi_Host *shost) 4075 { 4076 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4077 struct lpfc_hba *phba = vport->phba; 4078 /* 4079 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 4080 */ 4081 4082 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 4083 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 4084 fc_host_supported_classes(shost) = FC_COS_CLASS3; 4085 4086 memset(fc_host_supported_fc4s(shost), 0, 4087 sizeof(fc_host_supported_fc4s(shost))); 4088 fc_host_supported_fc4s(shost)[2] = 1; 4089 fc_host_supported_fc4s(shost)[7] = 1; 4090 4091 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 4092 sizeof fc_host_symbolic_name(shost)); 4093 4094 fc_host_supported_speeds(shost) = 0; 4095 if (phba->lmt & LMT_32Gb) 4096 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT; 4097 if (phba->lmt & LMT_16Gb) 4098 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 4099 if (phba->lmt & LMT_10Gb) 4100 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 4101 if (phba->lmt & LMT_8Gb) 4102 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 4103 if (phba->lmt & LMT_4Gb) 4104 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 4105 if (phba->lmt & LMT_2Gb) 4106 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 4107 if (phba->lmt & LMT_1Gb) 4108 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 4109 4110 fc_host_maxframe_size(shost) = 4111 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 4112 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 4113 4114 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 4115 4116 /* This value is also unchanging */ 4117 memset(fc_host_active_fc4s(shost), 0, 4118 sizeof(fc_host_active_fc4s(shost))); 4119 fc_host_active_fc4s(shost)[2] = 1; 4120 fc_host_active_fc4s(shost)[7] = 1; 4121 4122 fc_host_max_npiv_vports(shost) = phba->max_vpi; 4123 spin_lock_irq(shost->host_lock); 4124 vport->load_flag &= ~FC_LOADING; 4125 spin_unlock_irq(shost->host_lock); 4126 } 4127 4128 /** 4129 * lpfc_stop_port_s3 - Stop SLI3 device port 4130 * @phba: pointer to lpfc hba data structure. 4131 * 4132 * This routine is invoked to stop an SLI3 device port, it stops the device 4133 * from generating interrupts and stops the device driver's timers for the 4134 * device. 4135 **/ 4136 static void 4137 lpfc_stop_port_s3(struct lpfc_hba *phba) 4138 { 4139 /* Clear all interrupt enable conditions */ 4140 writel(0, phba->HCregaddr); 4141 readl(phba->HCregaddr); /* flush */ 4142 /* Clear all pending interrupts */ 4143 writel(0xffffffff, phba->HAregaddr); 4144 readl(phba->HAregaddr); /* flush */ 4145 4146 /* Reset some HBA SLI setup states */ 4147 lpfc_stop_hba_timers(phba); 4148 phba->pport->work_port_events = 0; 4149 } 4150 4151 /** 4152 * lpfc_stop_port_s4 - Stop SLI4 device port 4153 * @phba: pointer to lpfc hba data structure. 4154 * 4155 * This routine is invoked to stop an SLI4 device port, it stops the device 4156 * from generating interrupts and stops the device driver's timers for the 4157 * device. 4158 **/ 4159 static void 4160 lpfc_stop_port_s4(struct lpfc_hba *phba) 4161 { 4162 /* Reset some HBA SLI4 setup states */ 4163 lpfc_stop_hba_timers(phba); 4164 phba->pport->work_port_events = 0; 4165 phba->sli4_hba.intr_enable = 0; 4166 } 4167 4168 /** 4169 * lpfc_stop_port - Wrapper function for stopping hba port 4170 * @phba: Pointer to HBA context object. 4171 * 4172 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 4173 * the API jump table function pointer from the lpfc_hba struct. 4174 **/ 4175 void 4176 lpfc_stop_port(struct lpfc_hba *phba) 4177 { 4178 phba->lpfc_stop_port(phba); 4179 } 4180 4181 /** 4182 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 4183 * @phba: Pointer to hba for which this call is being executed. 4184 * 4185 * This routine starts the timer waiting for the FCF rediscovery to complete. 4186 **/ 4187 void 4188 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 4189 { 4190 unsigned long fcf_redisc_wait_tmo = 4191 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 4192 /* Start fcf rediscovery wait period timer */ 4193 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 4194 spin_lock_irq(&phba->hbalock); 4195 /* Allow action to new fcf asynchronous event */ 4196 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 4197 /* Mark the FCF rediscovery pending state */ 4198 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 4199 spin_unlock_irq(&phba->hbalock); 4200 } 4201 4202 /** 4203 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 4204 * @ptr: Map to lpfc_hba data structure pointer. 4205 * 4206 * This routine is invoked when waiting for FCF table rediscover has been 4207 * timed out. If new FCF record(s) has (have) been discovered during the 4208 * wait period, a new FCF event shall be added to the FCOE async event 4209 * list, and then worker thread shall be waked up for processing from the 4210 * worker thread context. 4211 **/ 4212 static void 4213 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 4214 { 4215 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 4216 4217 /* Don't send FCF rediscovery event if timer cancelled */ 4218 spin_lock_irq(&phba->hbalock); 4219 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 4220 spin_unlock_irq(&phba->hbalock); 4221 return; 4222 } 4223 /* Clear FCF rediscovery timer pending flag */ 4224 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 4225 /* FCF rediscovery event to worker thread */ 4226 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 4227 spin_unlock_irq(&phba->hbalock); 4228 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 4229 "2776 FCF rediscover quiescent timer expired\n"); 4230 /* wake up worker thread */ 4231 lpfc_worker_wake_up(phba); 4232 } 4233 4234 /** 4235 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 4236 * @phba: pointer to lpfc hba data structure. 4237 * @acqe_link: pointer to the async link completion queue entry. 4238 * 4239 * This routine is to parse the SLI4 link-attention link fault code and 4240 * translate it into the base driver's read link attention mailbox command 4241 * status. 4242 * 4243 * Return: Link-attention status in terms of base driver's coding. 4244 **/ 4245 static uint16_t 4246 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 4247 struct lpfc_acqe_link *acqe_link) 4248 { 4249 uint16_t latt_fault; 4250 4251 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 4252 case LPFC_ASYNC_LINK_FAULT_NONE: 4253 case LPFC_ASYNC_LINK_FAULT_LOCAL: 4254 case LPFC_ASYNC_LINK_FAULT_REMOTE: 4255 latt_fault = 0; 4256 break; 4257 default: 4258 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4259 "0398 Invalid link fault code: x%x\n", 4260 bf_get(lpfc_acqe_link_fault, acqe_link)); 4261 latt_fault = MBXERR_ERROR; 4262 break; 4263 } 4264 return latt_fault; 4265 } 4266 4267 /** 4268 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 4269 * @phba: pointer to lpfc hba data structure. 4270 * @acqe_link: pointer to the async link completion queue entry. 4271 * 4272 * This routine is to parse the SLI4 link attention type and translate it 4273 * into the base driver's link attention type coding. 4274 * 4275 * Return: Link attention type in terms of base driver's coding. 4276 **/ 4277 static uint8_t 4278 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 4279 struct lpfc_acqe_link *acqe_link) 4280 { 4281 uint8_t att_type; 4282 4283 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 4284 case LPFC_ASYNC_LINK_STATUS_DOWN: 4285 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 4286 att_type = LPFC_ATT_LINK_DOWN; 4287 break; 4288 case LPFC_ASYNC_LINK_STATUS_UP: 4289 /* Ignore physical link up events - wait for logical link up */ 4290 att_type = LPFC_ATT_RESERVED; 4291 break; 4292 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 4293 att_type = LPFC_ATT_LINK_UP; 4294 break; 4295 default: 4296 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4297 "0399 Invalid link attention type: x%x\n", 4298 bf_get(lpfc_acqe_link_status, acqe_link)); 4299 att_type = LPFC_ATT_RESERVED; 4300 break; 4301 } 4302 return att_type; 4303 } 4304 4305 /** 4306 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed 4307 * @phba: pointer to lpfc hba data structure. 4308 * 4309 * This routine is to get an SLI3 FC port's link speed in Mbps. 4310 * 4311 * Return: link speed in terms of Mbps. 4312 **/ 4313 uint32_t 4314 lpfc_sli_port_speed_get(struct lpfc_hba *phba) 4315 { 4316 uint32_t link_speed; 4317 4318 if (!lpfc_is_link_up(phba)) 4319 return 0; 4320 4321 if (phba->sli_rev <= LPFC_SLI_REV3) { 4322 switch (phba->fc_linkspeed) { 4323 case LPFC_LINK_SPEED_1GHZ: 4324 link_speed = 1000; 4325 break; 4326 case LPFC_LINK_SPEED_2GHZ: 4327 link_speed = 2000; 4328 break; 4329 case LPFC_LINK_SPEED_4GHZ: 4330 link_speed = 4000; 4331 break; 4332 case LPFC_LINK_SPEED_8GHZ: 4333 link_speed = 8000; 4334 break; 4335 case LPFC_LINK_SPEED_10GHZ: 4336 link_speed = 10000; 4337 break; 4338 case LPFC_LINK_SPEED_16GHZ: 4339 link_speed = 16000; 4340 break; 4341 default: 4342 link_speed = 0; 4343 } 4344 } else { 4345 if (phba->sli4_hba.link_state.logical_speed) 4346 link_speed = 4347 phba->sli4_hba.link_state.logical_speed; 4348 else 4349 link_speed = phba->sli4_hba.link_state.speed; 4350 } 4351 return link_speed; 4352 } 4353 4354 /** 4355 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed 4356 * @phba: pointer to lpfc hba data structure. 4357 * @evt_code: asynchronous event code. 4358 * @speed_code: asynchronous event link speed code. 4359 * 4360 * This routine is to parse the giving SLI4 async event link speed code into 4361 * value of Mbps for the link speed. 4362 * 4363 * Return: link speed in terms of Mbps. 4364 **/ 4365 static uint32_t 4366 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code, 4367 uint8_t speed_code) 4368 { 4369 uint32_t port_speed; 4370 4371 switch (evt_code) { 4372 case LPFC_TRAILER_CODE_LINK: 4373 switch (speed_code) { 4374 case LPFC_ASYNC_LINK_SPEED_ZERO: 4375 port_speed = 0; 4376 break; 4377 case LPFC_ASYNC_LINK_SPEED_10MBPS: 4378 port_speed = 10; 4379 break; 4380 case LPFC_ASYNC_LINK_SPEED_100MBPS: 4381 port_speed = 100; 4382 break; 4383 case LPFC_ASYNC_LINK_SPEED_1GBPS: 4384 port_speed = 1000; 4385 break; 4386 case LPFC_ASYNC_LINK_SPEED_10GBPS: 4387 port_speed = 10000; 4388 break; 4389 case LPFC_ASYNC_LINK_SPEED_20GBPS: 4390 port_speed = 20000; 4391 break; 4392 case LPFC_ASYNC_LINK_SPEED_25GBPS: 4393 port_speed = 25000; 4394 break; 4395 case LPFC_ASYNC_LINK_SPEED_40GBPS: 4396 port_speed = 40000; 4397 break; 4398 default: 4399 port_speed = 0; 4400 } 4401 break; 4402 case LPFC_TRAILER_CODE_FC: 4403 switch (speed_code) { 4404 case LPFC_FC_LA_SPEED_UNKNOWN: 4405 port_speed = 0; 4406 break; 4407 case LPFC_FC_LA_SPEED_1G: 4408 port_speed = 1000; 4409 break; 4410 case LPFC_FC_LA_SPEED_2G: 4411 port_speed = 2000; 4412 break; 4413 case LPFC_FC_LA_SPEED_4G: 4414 port_speed = 4000; 4415 break; 4416 case LPFC_FC_LA_SPEED_8G: 4417 port_speed = 8000; 4418 break; 4419 case LPFC_FC_LA_SPEED_10G: 4420 port_speed = 10000; 4421 break; 4422 case LPFC_FC_LA_SPEED_16G: 4423 port_speed = 16000; 4424 break; 4425 case LPFC_FC_LA_SPEED_32G: 4426 port_speed = 32000; 4427 break; 4428 default: 4429 port_speed = 0; 4430 } 4431 break; 4432 default: 4433 port_speed = 0; 4434 } 4435 return port_speed; 4436 } 4437 4438 /** 4439 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 4440 * @phba: pointer to lpfc hba data structure. 4441 * @acqe_link: pointer to the async link completion queue entry. 4442 * 4443 * This routine is to handle the SLI4 asynchronous FCoE link event. 4444 **/ 4445 static void 4446 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 4447 struct lpfc_acqe_link *acqe_link) 4448 { 4449 struct lpfc_dmabuf *mp; 4450 LPFC_MBOXQ_t *pmb; 4451 MAILBOX_t *mb; 4452 struct lpfc_mbx_read_top *la; 4453 uint8_t att_type; 4454 int rc; 4455 4456 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 4457 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 4458 return; 4459 phba->fcoe_eventtag = acqe_link->event_tag; 4460 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4461 if (!pmb) { 4462 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4463 "0395 The mboxq allocation failed\n"); 4464 return; 4465 } 4466 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4467 if (!mp) { 4468 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4469 "0396 The lpfc_dmabuf allocation failed\n"); 4470 goto out_free_pmb; 4471 } 4472 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4473 if (!mp->virt) { 4474 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4475 "0397 The mbuf allocation failed\n"); 4476 goto out_free_dmabuf; 4477 } 4478 4479 /* Cleanup any outstanding ELS commands */ 4480 lpfc_els_flush_all_cmd(phba); 4481 4482 /* Block ELS IOCBs until we have done process link event */ 4483 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4484 4485 /* Update link event statistics */ 4486 phba->sli.slistat.link_event++; 4487 4488 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4489 lpfc_read_topology(phba, pmb, mp); 4490 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4491 pmb->vport = phba->pport; 4492 4493 /* Keep the link status for extra SLI4 state machine reference */ 4494 phba->sli4_hba.link_state.speed = 4495 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK, 4496 bf_get(lpfc_acqe_link_speed, acqe_link)); 4497 phba->sli4_hba.link_state.duplex = 4498 bf_get(lpfc_acqe_link_duplex, acqe_link); 4499 phba->sli4_hba.link_state.status = 4500 bf_get(lpfc_acqe_link_status, acqe_link); 4501 phba->sli4_hba.link_state.type = 4502 bf_get(lpfc_acqe_link_type, acqe_link); 4503 phba->sli4_hba.link_state.number = 4504 bf_get(lpfc_acqe_link_number, acqe_link); 4505 phba->sli4_hba.link_state.fault = 4506 bf_get(lpfc_acqe_link_fault, acqe_link); 4507 phba->sli4_hba.link_state.logical_speed = 4508 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10; 4509 4510 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4511 "2900 Async FC/FCoE Link event - Speed:%dGBit " 4512 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 4513 "Logical speed:%dMbps Fault:%d\n", 4514 phba->sli4_hba.link_state.speed, 4515 phba->sli4_hba.link_state.topology, 4516 phba->sli4_hba.link_state.status, 4517 phba->sli4_hba.link_state.type, 4518 phba->sli4_hba.link_state.number, 4519 phba->sli4_hba.link_state.logical_speed, 4520 phba->sli4_hba.link_state.fault); 4521 /* 4522 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 4523 * topology info. Note: Optional for non FC-AL ports. 4524 */ 4525 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 4526 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4527 if (rc == MBX_NOT_FINISHED) 4528 goto out_free_dmabuf; 4529 return; 4530 } 4531 /* 4532 * For FCoE Mode: fill in all the topology information we need and call 4533 * the READ_TOPOLOGY completion routine to continue without actually 4534 * sending the READ_TOPOLOGY mailbox command to the port. 4535 */ 4536 /* Parse and translate status field */ 4537 mb = &pmb->u.mb; 4538 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 4539 4540 /* Parse and translate link attention fields */ 4541 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 4542 la->eventTag = acqe_link->event_tag; 4543 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 4544 bf_set(lpfc_mbx_read_top_link_spd, la, 4545 (bf_get(lpfc_acqe_link_speed, acqe_link))); 4546 4547 /* Fake the the following irrelvant fields */ 4548 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 4549 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 4550 bf_set(lpfc_mbx_read_top_il, la, 0); 4551 bf_set(lpfc_mbx_read_top_pb, la, 0); 4552 bf_set(lpfc_mbx_read_top_fa, la, 0); 4553 bf_set(lpfc_mbx_read_top_mm, la, 0); 4554 4555 /* Invoke the lpfc_handle_latt mailbox command callback function */ 4556 lpfc_mbx_cmpl_read_topology(phba, pmb); 4557 4558 return; 4559 4560 out_free_dmabuf: 4561 kfree(mp); 4562 out_free_pmb: 4563 mempool_free(pmb, phba->mbox_mem_pool); 4564 } 4565 4566 /** 4567 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 4568 * @phba: pointer to lpfc hba data structure. 4569 * @acqe_fc: pointer to the async fc completion queue entry. 4570 * 4571 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 4572 * that the event was received and then issue a read_topology mailbox command so 4573 * that the rest of the driver will treat it the same as SLI3. 4574 **/ 4575 static void 4576 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 4577 { 4578 struct lpfc_dmabuf *mp; 4579 LPFC_MBOXQ_t *pmb; 4580 MAILBOX_t *mb; 4581 struct lpfc_mbx_read_top *la; 4582 int rc; 4583 4584 if (bf_get(lpfc_trailer_type, acqe_fc) != 4585 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 4586 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4587 "2895 Non FC link Event detected.(%d)\n", 4588 bf_get(lpfc_trailer_type, acqe_fc)); 4589 return; 4590 } 4591 /* Keep the link status for extra SLI4 state machine reference */ 4592 phba->sli4_hba.link_state.speed = 4593 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, 4594 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 4595 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 4596 phba->sli4_hba.link_state.topology = 4597 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 4598 phba->sli4_hba.link_state.status = 4599 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 4600 phba->sli4_hba.link_state.type = 4601 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 4602 phba->sli4_hba.link_state.number = 4603 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 4604 phba->sli4_hba.link_state.fault = 4605 bf_get(lpfc_acqe_link_fault, acqe_fc); 4606 phba->sli4_hba.link_state.logical_speed = 4607 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; 4608 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4609 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 4610 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 4611 "%dMbps Fault:%d\n", 4612 phba->sli4_hba.link_state.speed, 4613 phba->sli4_hba.link_state.topology, 4614 phba->sli4_hba.link_state.status, 4615 phba->sli4_hba.link_state.type, 4616 phba->sli4_hba.link_state.number, 4617 phba->sli4_hba.link_state.logical_speed, 4618 phba->sli4_hba.link_state.fault); 4619 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4620 if (!pmb) { 4621 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4622 "2897 The mboxq allocation failed\n"); 4623 return; 4624 } 4625 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4626 if (!mp) { 4627 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4628 "2898 The lpfc_dmabuf allocation failed\n"); 4629 goto out_free_pmb; 4630 } 4631 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4632 if (!mp->virt) { 4633 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4634 "2899 The mbuf allocation failed\n"); 4635 goto out_free_dmabuf; 4636 } 4637 4638 /* Cleanup any outstanding ELS commands */ 4639 lpfc_els_flush_all_cmd(phba); 4640 4641 /* Block ELS IOCBs until we have done process link event */ 4642 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4643 4644 /* Update link event statistics */ 4645 phba->sli.slistat.link_event++; 4646 4647 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4648 lpfc_read_topology(phba, pmb, mp); 4649 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4650 pmb->vport = phba->pport; 4651 4652 if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) { 4653 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK); 4654 4655 switch (phba->sli4_hba.link_state.status) { 4656 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN: 4657 phba->link_flag |= LS_MDS_LINK_DOWN; 4658 break; 4659 case LPFC_FC_LA_TYPE_MDS_LOOPBACK: 4660 phba->link_flag |= LS_MDS_LOOPBACK; 4661 break; 4662 default: 4663 break; 4664 } 4665 4666 /* Parse and translate status field */ 4667 mb = &pmb->u.mb; 4668 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, 4669 (void *)acqe_fc); 4670 4671 /* Parse and translate link attention fields */ 4672 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop; 4673 la->eventTag = acqe_fc->event_tag; 4674 4675 if (phba->sli4_hba.link_state.status == 4676 LPFC_FC_LA_TYPE_UNEXP_WWPN) { 4677 bf_set(lpfc_mbx_read_top_att_type, la, 4678 LPFC_FC_LA_TYPE_UNEXP_WWPN); 4679 } else { 4680 bf_set(lpfc_mbx_read_top_att_type, la, 4681 LPFC_FC_LA_TYPE_LINK_DOWN); 4682 } 4683 /* Invoke the mailbox command callback function */ 4684 lpfc_mbx_cmpl_read_topology(phba, pmb); 4685 4686 return; 4687 } 4688 4689 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4690 if (rc == MBX_NOT_FINISHED) 4691 goto out_free_dmabuf; 4692 return; 4693 4694 out_free_dmabuf: 4695 kfree(mp); 4696 out_free_pmb: 4697 mempool_free(pmb, phba->mbox_mem_pool); 4698 } 4699 4700 /** 4701 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 4702 * @phba: pointer to lpfc hba data structure. 4703 * @acqe_fc: pointer to the async SLI completion queue entry. 4704 * 4705 * This routine is to handle the SLI4 asynchronous SLI events. 4706 **/ 4707 static void 4708 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 4709 { 4710 char port_name; 4711 char message[128]; 4712 uint8_t status; 4713 uint8_t evt_type; 4714 uint8_t operational = 0; 4715 struct temp_event temp_event_data; 4716 struct lpfc_acqe_misconfigured_event *misconfigured; 4717 struct Scsi_Host *shost; 4718 4719 evt_type = bf_get(lpfc_trailer_type, acqe_sli); 4720 4721 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4722 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 4723 "x%08x SLI Event Type:%d\n", 4724 acqe_sli->event_data1, acqe_sli->event_data2, 4725 evt_type); 4726 4727 port_name = phba->Port[0]; 4728 if (port_name == 0x00) 4729 port_name = '?'; /* get port name is empty */ 4730 4731 switch (evt_type) { 4732 case LPFC_SLI_EVENT_TYPE_OVER_TEMP: 4733 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4734 temp_event_data.event_code = LPFC_THRESHOLD_TEMP; 4735 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4736 4737 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 4738 "3190 Over Temperature:%d Celsius- Port Name %c\n", 4739 acqe_sli->event_data1, port_name); 4740 4741 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; 4742 shost = lpfc_shost_from_vport(phba->pport); 4743 fc_host_post_vendor_event(shost, fc_get_event_number(), 4744 sizeof(temp_event_data), 4745 (char *)&temp_event_data, 4746 SCSI_NL_VID_TYPE_PCI 4747 | PCI_VENDOR_ID_EMULEX); 4748 break; 4749 case LPFC_SLI_EVENT_TYPE_NORM_TEMP: 4750 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4751 temp_event_data.event_code = LPFC_NORMAL_TEMP; 4752 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4753 4754 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4755 "3191 Normal Temperature:%d Celsius - Port Name %c\n", 4756 acqe_sli->event_data1, port_name); 4757 4758 shost = lpfc_shost_from_vport(phba->pport); 4759 fc_host_post_vendor_event(shost, fc_get_event_number(), 4760 sizeof(temp_event_data), 4761 (char *)&temp_event_data, 4762 SCSI_NL_VID_TYPE_PCI 4763 | PCI_VENDOR_ID_EMULEX); 4764 break; 4765 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED: 4766 misconfigured = (struct lpfc_acqe_misconfigured_event *) 4767 &acqe_sli->event_data1; 4768 4769 /* fetch the status for this port */ 4770 switch (phba->sli4_hba.lnk_info.lnk_no) { 4771 case LPFC_LINK_NUMBER_0: 4772 status = bf_get(lpfc_sli_misconfigured_port0_state, 4773 &misconfigured->theEvent); 4774 operational = bf_get(lpfc_sli_misconfigured_port0_op, 4775 &misconfigured->theEvent); 4776 break; 4777 case LPFC_LINK_NUMBER_1: 4778 status = bf_get(lpfc_sli_misconfigured_port1_state, 4779 &misconfigured->theEvent); 4780 operational = bf_get(lpfc_sli_misconfigured_port1_op, 4781 &misconfigured->theEvent); 4782 break; 4783 case LPFC_LINK_NUMBER_2: 4784 status = bf_get(lpfc_sli_misconfigured_port2_state, 4785 &misconfigured->theEvent); 4786 operational = bf_get(lpfc_sli_misconfigured_port2_op, 4787 &misconfigured->theEvent); 4788 break; 4789 case LPFC_LINK_NUMBER_3: 4790 status = bf_get(lpfc_sli_misconfigured_port3_state, 4791 &misconfigured->theEvent); 4792 operational = bf_get(lpfc_sli_misconfigured_port3_op, 4793 &misconfigured->theEvent); 4794 break; 4795 default: 4796 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4797 "3296 " 4798 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED " 4799 "event: Invalid link %d", 4800 phba->sli4_hba.lnk_info.lnk_no); 4801 return; 4802 } 4803 4804 /* Skip if optic state unchanged */ 4805 if (phba->sli4_hba.lnk_info.optic_state == status) 4806 return; 4807 4808 switch (status) { 4809 case LPFC_SLI_EVENT_STATUS_VALID: 4810 sprintf(message, "Physical Link is functional"); 4811 break; 4812 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: 4813 sprintf(message, "Optics faulted/incorrectly " 4814 "installed/not installed - Reseat optics, " 4815 "if issue not resolved, replace."); 4816 break; 4817 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: 4818 sprintf(message, 4819 "Optics of two types installed - Remove one " 4820 "optic or install matching pair of optics."); 4821 break; 4822 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: 4823 sprintf(message, "Incompatible optics - Replace with " 4824 "compatible optics for card to function."); 4825 break; 4826 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED: 4827 sprintf(message, "Unqualified optics - Replace with " 4828 "Avago optics for Warranty and Technical " 4829 "Support - Link is%s operational", 4830 (operational) ? " not" : ""); 4831 break; 4832 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED: 4833 sprintf(message, "Uncertified optics - Replace with " 4834 "Avago-certified optics to enable link " 4835 "operation - Link is%s operational", 4836 (operational) ? " not" : ""); 4837 break; 4838 default: 4839 /* firmware is reporting a status we don't know about */ 4840 sprintf(message, "Unknown event status x%02x", status); 4841 break; 4842 } 4843 phba->sli4_hba.lnk_info.optic_state = status; 4844 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4845 "3176 Port Name %c %s\n", port_name, message); 4846 break; 4847 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT: 4848 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4849 "3192 Remote DPort Test Initiated - " 4850 "Event Data1:x%08x Event Data2: x%08x\n", 4851 acqe_sli->event_data1, acqe_sli->event_data2); 4852 break; 4853 default: 4854 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4855 "3193 Async SLI event - Event Data1:x%08x Event Data2:" 4856 "x%08x SLI Event Type:%d\n", 4857 acqe_sli->event_data1, acqe_sli->event_data2, 4858 evt_type); 4859 break; 4860 } 4861 } 4862 4863 /** 4864 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 4865 * @vport: pointer to vport data structure. 4866 * 4867 * This routine is to perform Clear Virtual Link (CVL) on a vport in 4868 * response to a CVL event. 4869 * 4870 * Return the pointer to the ndlp with the vport if successful, otherwise 4871 * return NULL. 4872 **/ 4873 static struct lpfc_nodelist * 4874 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 4875 { 4876 struct lpfc_nodelist *ndlp; 4877 struct Scsi_Host *shost; 4878 struct lpfc_hba *phba; 4879 4880 if (!vport) 4881 return NULL; 4882 phba = vport->phba; 4883 if (!phba) 4884 return NULL; 4885 ndlp = lpfc_findnode_did(vport, Fabric_DID); 4886 if (!ndlp) { 4887 /* Cannot find existing Fabric ndlp, so allocate a new one */ 4888 ndlp = lpfc_nlp_init(vport, Fabric_DID); 4889 if (!ndlp) 4890 return 0; 4891 /* Set the node type */ 4892 ndlp->nlp_type |= NLP_FABRIC; 4893 /* Put ndlp onto node list */ 4894 lpfc_enqueue_node(vport, ndlp); 4895 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 4896 /* re-setup ndlp without removing from node list */ 4897 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 4898 if (!ndlp) 4899 return 0; 4900 } 4901 if ((phba->pport->port_state < LPFC_FLOGI) && 4902 (phba->pport->port_state != LPFC_VPORT_FAILED)) 4903 return NULL; 4904 /* If virtual link is not yet instantiated ignore CVL */ 4905 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 4906 && (vport->port_state != LPFC_VPORT_FAILED)) 4907 return NULL; 4908 shost = lpfc_shost_from_vport(vport); 4909 if (!shost) 4910 return NULL; 4911 lpfc_linkdown_port(vport); 4912 lpfc_cleanup_pending_mbox(vport); 4913 spin_lock_irq(shost->host_lock); 4914 vport->fc_flag |= FC_VPORT_CVL_RCVD; 4915 spin_unlock_irq(shost->host_lock); 4916 4917 return ndlp; 4918 } 4919 4920 /** 4921 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 4922 * @vport: pointer to lpfc hba data structure. 4923 * 4924 * This routine is to perform Clear Virtual Link (CVL) on all vports in 4925 * response to a FCF dead event. 4926 **/ 4927 static void 4928 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 4929 { 4930 struct lpfc_vport **vports; 4931 int i; 4932 4933 vports = lpfc_create_vport_work_array(phba); 4934 if (vports) 4935 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 4936 lpfc_sli4_perform_vport_cvl(vports[i]); 4937 lpfc_destroy_vport_work_array(phba, vports); 4938 } 4939 4940 /** 4941 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 4942 * @phba: pointer to lpfc hba data structure. 4943 * @acqe_link: pointer to the async fcoe completion queue entry. 4944 * 4945 * This routine is to handle the SLI4 asynchronous fcoe event. 4946 **/ 4947 static void 4948 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 4949 struct lpfc_acqe_fip *acqe_fip) 4950 { 4951 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 4952 int rc; 4953 struct lpfc_vport *vport; 4954 struct lpfc_nodelist *ndlp; 4955 struct Scsi_Host *shost; 4956 int active_vlink_present; 4957 struct lpfc_vport **vports; 4958 int i; 4959 4960 phba->fc_eventTag = acqe_fip->event_tag; 4961 phba->fcoe_eventtag = acqe_fip->event_tag; 4962 switch (event_type) { 4963 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 4964 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 4965 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 4966 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4967 LOG_DISCOVERY, 4968 "2546 New FCF event, evt_tag:x%x, " 4969 "index:x%x\n", 4970 acqe_fip->event_tag, 4971 acqe_fip->index); 4972 else 4973 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 4974 LOG_DISCOVERY, 4975 "2788 FCF param modified event, " 4976 "evt_tag:x%x, index:x%x\n", 4977 acqe_fip->event_tag, 4978 acqe_fip->index); 4979 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4980 /* 4981 * During period of FCF discovery, read the FCF 4982 * table record indexed by the event to update 4983 * FCF roundrobin failover eligible FCF bmask. 4984 */ 4985 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4986 LOG_DISCOVERY, 4987 "2779 Read FCF (x%x) for updating " 4988 "roundrobin FCF failover bmask\n", 4989 acqe_fip->index); 4990 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 4991 } 4992 4993 /* If the FCF discovery is in progress, do nothing. */ 4994 spin_lock_irq(&phba->hbalock); 4995 if (phba->hba_flag & FCF_TS_INPROG) { 4996 spin_unlock_irq(&phba->hbalock); 4997 break; 4998 } 4999 /* If fast FCF failover rescan event is pending, do nothing */ 5000 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 5001 spin_unlock_irq(&phba->hbalock); 5002 break; 5003 } 5004 5005 /* If the FCF has been in discovered state, do nothing. */ 5006 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 5007 spin_unlock_irq(&phba->hbalock); 5008 break; 5009 } 5010 spin_unlock_irq(&phba->hbalock); 5011 5012 /* Otherwise, scan the entire FCF table and re-discover SAN */ 5013 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5014 "2770 Start FCF table scan per async FCF " 5015 "event, evt_tag:x%x, index:x%x\n", 5016 acqe_fip->event_tag, acqe_fip->index); 5017 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 5018 LPFC_FCOE_FCF_GET_FIRST); 5019 if (rc) 5020 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5021 "2547 Issue FCF scan read FCF mailbox " 5022 "command failed (x%x)\n", rc); 5023 break; 5024 5025 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 5026 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5027 "2548 FCF Table full count 0x%x tag 0x%x\n", 5028 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 5029 acqe_fip->event_tag); 5030 break; 5031 5032 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 5033 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 5034 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5035 "2549 FCF (x%x) disconnected from network, " 5036 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 5037 /* 5038 * If we are in the middle of FCF failover process, clear 5039 * the corresponding FCF bit in the roundrobin bitmap. 5040 */ 5041 spin_lock_irq(&phba->hbalock); 5042 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) && 5043 (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) { 5044 spin_unlock_irq(&phba->hbalock); 5045 /* Update FLOGI FCF failover eligible FCF bmask */ 5046 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 5047 break; 5048 } 5049 spin_unlock_irq(&phba->hbalock); 5050 5051 /* If the event is not for currently used fcf do nothing */ 5052 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 5053 break; 5054 5055 /* 5056 * Otherwise, request the port to rediscover the entire FCF 5057 * table for a fast recovery from case that the current FCF 5058 * is no longer valid as we are not in the middle of FCF 5059 * failover process already. 5060 */ 5061 spin_lock_irq(&phba->hbalock); 5062 /* Mark the fast failover process in progress */ 5063 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 5064 spin_unlock_irq(&phba->hbalock); 5065 5066 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5067 "2771 Start FCF fast failover process due to " 5068 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 5069 "\n", acqe_fip->event_tag, acqe_fip->index); 5070 rc = lpfc_sli4_redisc_fcf_table(phba); 5071 if (rc) { 5072 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 5073 LOG_DISCOVERY, 5074 "2772 Issue FCF rediscover mabilbox " 5075 "command failed, fail through to FCF " 5076 "dead event\n"); 5077 spin_lock_irq(&phba->hbalock); 5078 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 5079 spin_unlock_irq(&phba->hbalock); 5080 /* 5081 * Last resort will fail over by treating this 5082 * as a link down to FCF registration. 5083 */ 5084 lpfc_sli4_fcf_dead_failthrough(phba); 5085 } else { 5086 /* Reset FCF roundrobin bmask for new discovery */ 5087 lpfc_sli4_clear_fcf_rr_bmask(phba); 5088 /* 5089 * Handling fast FCF failover to a DEAD FCF event is 5090 * considered equalivant to receiving CVL to all vports. 5091 */ 5092 lpfc_sli4_perform_all_vport_cvl(phba); 5093 } 5094 break; 5095 case LPFC_FIP_EVENT_TYPE_CVL: 5096 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 5097 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5098 "2718 Clear Virtual Link Received for VPI 0x%x" 5099 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 5100 5101 vport = lpfc_find_vport_by_vpid(phba, 5102 acqe_fip->index); 5103 ndlp = lpfc_sli4_perform_vport_cvl(vport); 5104 if (!ndlp) 5105 break; 5106 active_vlink_present = 0; 5107 5108 vports = lpfc_create_vport_work_array(phba); 5109 if (vports) { 5110 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 5111 i++) { 5112 if ((!(vports[i]->fc_flag & 5113 FC_VPORT_CVL_RCVD)) && 5114 (vports[i]->port_state > LPFC_FDISC)) { 5115 active_vlink_present = 1; 5116 break; 5117 } 5118 } 5119 lpfc_destroy_vport_work_array(phba, vports); 5120 } 5121 5122 /* 5123 * Don't re-instantiate if vport is marked for deletion. 5124 * If we are here first then vport_delete is going to wait 5125 * for discovery to complete. 5126 */ 5127 if (!(vport->load_flag & FC_UNLOADING) && 5128 active_vlink_present) { 5129 /* 5130 * If there are other active VLinks present, 5131 * re-instantiate the Vlink using FDISC. 5132 */ 5133 mod_timer(&ndlp->nlp_delayfunc, 5134 jiffies + msecs_to_jiffies(1000)); 5135 shost = lpfc_shost_from_vport(vport); 5136 spin_lock_irq(shost->host_lock); 5137 ndlp->nlp_flag |= NLP_DELAY_TMO; 5138 spin_unlock_irq(shost->host_lock); 5139 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 5140 vport->port_state = LPFC_FDISC; 5141 } else { 5142 /* 5143 * Otherwise, we request port to rediscover 5144 * the entire FCF table for a fast recovery 5145 * from possible case that the current FCF 5146 * is no longer valid if we are not already 5147 * in the FCF failover process. 5148 */ 5149 spin_lock_irq(&phba->hbalock); 5150 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 5151 spin_unlock_irq(&phba->hbalock); 5152 break; 5153 } 5154 /* Mark the fast failover process in progress */ 5155 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 5156 spin_unlock_irq(&phba->hbalock); 5157 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 5158 LOG_DISCOVERY, 5159 "2773 Start FCF failover per CVL, " 5160 "evt_tag:x%x\n", acqe_fip->event_tag); 5161 rc = lpfc_sli4_redisc_fcf_table(phba); 5162 if (rc) { 5163 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 5164 LOG_DISCOVERY, 5165 "2774 Issue FCF rediscover " 5166 "mabilbox command failed, " 5167 "through to CVL event\n"); 5168 spin_lock_irq(&phba->hbalock); 5169 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 5170 spin_unlock_irq(&phba->hbalock); 5171 /* 5172 * Last resort will be re-try on the 5173 * the current registered FCF entry. 5174 */ 5175 lpfc_retry_pport_discovery(phba); 5176 } else 5177 /* 5178 * Reset FCF roundrobin bmask for new 5179 * discovery. 5180 */ 5181 lpfc_sli4_clear_fcf_rr_bmask(phba); 5182 } 5183 break; 5184 default: 5185 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5186 "0288 Unknown FCoE event type 0x%x event tag " 5187 "0x%x\n", event_type, acqe_fip->event_tag); 5188 break; 5189 } 5190 } 5191 5192 /** 5193 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 5194 * @phba: pointer to lpfc hba data structure. 5195 * @acqe_link: pointer to the async dcbx completion queue entry. 5196 * 5197 * This routine is to handle the SLI4 asynchronous dcbx event. 5198 **/ 5199 static void 5200 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 5201 struct lpfc_acqe_dcbx *acqe_dcbx) 5202 { 5203 phba->fc_eventTag = acqe_dcbx->event_tag; 5204 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5205 "0290 The SLI4 DCBX asynchronous event is not " 5206 "handled yet\n"); 5207 } 5208 5209 /** 5210 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 5211 * @phba: pointer to lpfc hba data structure. 5212 * @acqe_link: pointer to the async grp5 completion queue entry. 5213 * 5214 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 5215 * is an asynchronous notified of a logical link speed change. The Port 5216 * reports the logical link speed in units of 10Mbps. 5217 **/ 5218 static void 5219 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 5220 struct lpfc_acqe_grp5 *acqe_grp5) 5221 { 5222 uint16_t prev_ll_spd; 5223 5224 phba->fc_eventTag = acqe_grp5->event_tag; 5225 phba->fcoe_eventtag = acqe_grp5->event_tag; 5226 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 5227 phba->sli4_hba.link_state.logical_speed = 5228 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10; 5229 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5230 "2789 GRP5 Async Event: Updating logical link speed " 5231 "from %dMbps to %dMbps\n", prev_ll_spd, 5232 phba->sli4_hba.link_state.logical_speed); 5233 } 5234 5235 /** 5236 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 5237 * @phba: pointer to lpfc hba data structure. 5238 * 5239 * This routine is invoked by the worker thread to process all the pending 5240 * SLI4 asynchronous events. 5241 **/ 5242 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 5243 { 5244 struct lpfc_cq_event *cq_event; 5245 5246 /* First, declare the async event has been handled */ 5247 spin_lock_irq(&phba->hbalock); 5248 phba->hba_flag &= ~ASYNC_EVENT; 5249 spin_unlock_irq(&phba->hbalock); 5250 /* Now, handle all the async events */ 5251 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 5252 /* Get the first event from the head of the event queue */ 5253 spin_lock_irq(&phba->hbalock); 5254 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 5255 cq_event, struct lpfc_cq_event, list); 5256 spin_unlock_irq(&phba->hbalock); 5257 /* Process the asynchronous event */ 5258 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 5259 case LPFC_TRAILER_CODE_LINK: 5260 lpfc_sli4_async_link_evt(phba, 5261 &cq_event->cqe.acqe_link); 5262 break; 5263 case LPFC_TRAILER_CODE_FCOE: 5264 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 5265 break; 5266 case LPFC_TRAILER_CODE_DCBX: 5267 lpfc_sli4_async_dcbx_evt(phba, 5268 &cq_event->cqe.acqe_dcbx); 5269 break; 5270 case LPFC_TRAILER_CODE_GRP5: 5271 lpfc_sli4_async_grp5_evt(phba, 5272 &cq_event->cqe.acqe_grp5); 5273 break; 5274 case LPFC_TRAILER_CODE_FC: 5275 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 5276 break; 5277 case LPFC_TRAILER_CODE_SLI: 5278 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 5279 break; 5280 default: 5281 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5282 "1804 Invalid asynchrous event code: " 5283 "x%x\n", bf_get(lpfc_trailer_code, 5284 &cq_event->cqe.mcqe_cmpl)); 5285 break; 5286 } 5287 /* Free the completion event processed to the free pool */ 5288 lpfc_sli4_cq_event_release(phba, cq_event); 5289 } 5290 } 5291 5292 /** 5293 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 5294 * @phba: pointer to lpfc hba data structure. 5295 * 5296 * This routine is invoked by the worker thread to process FCF table 5297 * rediscovery pending completion event. 5298 **/ 5299 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 5300 { 5301 int rc; 5302 5303 spin_lock_irq(&phba->hbalock); 5304 /* Clear FCF rediscovery timeout event */ 5305 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 5306 /* Clear driver fast failover FCF record flag */ 5307 phba->fcf.failover_rec.flag = 0; 5308 /* Set state for FCF fast failover */ 5309 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 5310 spin_unlock_irq(&phba->hbalock); 5311 5312 /* Scan FCF table from the first entry to re-discover SAN */ 5313 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5314 "2777 Start post-quiescent FCF table scan\n"); 5315 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 5316 if (rc) 5317 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5318 "2747 Issue FCF scan read FCF mailbox " 5319 "command failed 0x%x\n", rc); 5320 } 5321 5322 /** 5323 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 5324 * @phba: pointer to lpfc hba data structure. 5325 * @dev_grp: The HBA PCI-Device group number. 5326 * 5327 * This routine is invoked to set up the per HBA PCI-Device group function 5328 * API jump table entries. 5329 * 5330 * Return: 0 if success, otherwise -ENODEV 5331 **/ 5332 int 5333 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 5334 { 5335 int rc; 5336 5337 /* Set up lpfc PCI-device group */ 5338 phba->pci_dev_grp = dev_grp; 5339 5340 /* The LPFC_PCI_DEV_OC uses SLI4 */ 5341 if (dev_grp == LPFC_PCI_DEV_OC) 5342 phba->sli_rev = LPFC_SLI_REV4; 5343 5344 /* Set up device INIT API function jump table */ 5345 rc = lpfc_init_api_table_setup(phba, dev_grp); 5346 if (rc) 5347 return -ENODEV; 5348 /* Set up SCSI API function jump table */ 5349 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 5350 if (rc) 5351 return -ENODEV; 5352 /* Set up SLI API function jump table */ 5353 rc = lpfc_sli_api_table_setup(phba, dev_grp); 5354 if (rc) 5355 return -ENODEV; 5356 /* Set up MBOX API function jump table */ 5357 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 5358 if (rc) 5359 return -ENODEV; 5360 5361 return 0; 5362 } 5363 5364 /** 5365 * lpfc_log_intr_mode - Log the active interrupt mode 5366 * @phba: pointer to lpfc hba data structure. 5367 * @intr_mode: active interrupt mode adopted. 5368 * 5369 * This routine it invoked to log the currently used active interrupt mode 5370 * to the device. 5371 **/ 5372 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 5373 { 5374 switch (intr_mode) { 5375 case 0: 5376 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5377 "0470 Enable INTx interrupt mode.\n"); 5378 break; 5379 case 1: 5380 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5381 "0481 Enabled MSI interrupt mode.\n"); 5382 break; 5383 case 2: 5384 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5385 "0480 Enabled MSI-X interrupt mode.\n"); 5386 break; 5387 default: 5388 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5389 "0482 Illegal interrupt mode.\n"); 5390 break; 5391 } 5392 return; 5393 } 5394 5395 /** 5396 * lpfc_enable_pci_dev - Enable a generic PCI device. 5397 * @phba: pointer to lpfc hba data structure. 5398 * 5399 * This routine is invoked to enable the PCI device that is common to all 5400 * PCI devices. 5401 * 5402 * Return codes 5403 * 0 - successful 5404 * other values - error 5405 **/ 5406 static int 5407 lpfc_enable_pci_dev(struct lpfc_hba *phba) 5408 { 5409 struct pci_dev *pdev; 5410 5411 /* Obtain PCI device reference */ 5412 if (!phba->pcidev) 5413 goto out_error; 5414 else 5415 pdev = phba->pcidev; 5416 /* Enable PCI device */ 5417 if (pci_enable_device_mem(pdev)) 5418 goto out_error; 5419 /* Request PCI resource for the device */ 5420 if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME)) 5421 goto out_disable_device; 5422 /* Set up device as PCI master and save state for EEH */ 5423 pci_set_master(pdev); 5424 pci_try_set_mwi(pdev); 5425 pci_save_state(pdev); 5426 5427 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 5428 if (pci_is_pcie(pdev)) 5429 pdev->needs_freset = 1; 5430 5431 return 0; 5432 5433 out_disable_device: 5434 pci_disable_device(pdev); 5435 out_error: 5436 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5437 "1401 Failed to enable pci device\n"); 5438 return -ENODEV; 5439 } 5440 5441 /** 5442 * lpfc_disable_pci_dev - Disable a generic PCI device. 5443 * @phba: pointer to lpfc hba data structure. 5444 * 5445 * This routine is invoked to disable the PCI device that is common to all 5446 * PCI devices. 5447 **/ 5448 static void 5449 lpfc_disable_pci_dev(struct lpfc_hba *phba) 5450 { 5451 struct pci_dev *pdev; 5452 5453 /* Obtain PCI device reference */ 5454 if (!phba->pcidev) 5455 return; 5456 else 5457 pdev = phba->pcidev; 5458 /* Release PCI resource and disable PCI device */ 5459 pci_release_mem_regions(pdev); 5460 pci_disable_device(pdev); 5461 5462 return; 5463 } 5464 5465 /** 5466 * lpfc_reset_hba - Reset a hba 5467 * @phba: pointer to lpfc hba data structure. 5468 * 5469 * This routine is invoked to reset a hba device. It brings the HBA 5470 * offline, performs a board restart, and then brings the board back 5471 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 5472 * on outstanding mailbox commands. 5473 **/ 5474 void 5475 lpfc_reset_hba(struct lpfc_hba *phba) 5476 { 5477 /* If resets are disabled then set error state and return. */ 5478 if (!phba->cfg_enable_hba_reset) { 5479 phba->link_state = LPFC_HBA_ERROR; 5480 return; 5481 } 5482 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) 5483 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 5484 else 5485 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 5486 lpfc_offline(phba); 5487 lpfc_sli_brdrestart(phba); 5488 lpfc_online(phba); 5489 lpfc_unblock_mgmt_io(phba); 5490 } 5491 5492 /** 5493 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 5494 * @phba: pointer to lpfc hba data structure. 5495 * 5496 * This function enables the PCI SR-IOV virtual functions to a physical 5497 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 5498 * enable the number of virtual functions to the physical function. As 5499 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 5500 * API call does not considered as an error condition for most of the device. 5501 **/ 5502 uint16_t 5503 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 5504 { 5505 struct pci_dev *pdev = phba->pcidev; 5506 uint16_t nr_virtfn; 5507 int pos; 5508 5509 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 5510 if (pos == 0) 5511 return 0; 5512 5513 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 5514 return nr_virtfn; 5515 } 5516 5517 /** 5518 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 5519 * @phba: pointer to lpfc hba data structure. 5520 * @nr_vfn: number of virtual functions to be enabled. 5521 * 5522 * This function enables the PCI SR-IOV virtual functions to a physical 5523 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 5524 * enable the number of virtual functions to the physical function. As 5525 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 5526 * API call does not considered as an error condition for most of the device. 5527 **/ 5528 int 5529 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 5530 { 5531 struct pci_dev *pdev = phba->pcidev; 5532 uint16_t max_nr_vfn; 5533 int rc; 5534 5535 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 5536 if (nr_vfn > max_nr_vfn) { 5537 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5538 "3057 Requested vfs (%d) greater than " 5539 "supported vfs (%d)", nr_vfn, max_nr_vfn); 5540 return -EINVAL; 5541 } 5542 5543 rc = pci_enable_sriov(pdev, nr_vfn); 5544 if (rc) { 5545 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5546 "2806 Failed to enable sriov on this device " 5547 "with vfn number nr_vf:%d, rc:%d\n", 5548 nr_vfn, rc); 5549 } else 5550 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5551 "2807 Successful enable sriov on this device " 5552 "with vfn number nr_vf:%d\n", nr_vfn); 5553 return rc; 5554 } 5555 5556 /** 5557 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 5558 * @phba: pointer to lpfc hba data structure. 5559 * 5560 * This routine is invoked to set up the driver internal resources before the 5561 * device specific resource setup to support the HBA device it attached to. 5562 * 5563 * Return codes 5564 * 0 - successful 5565 * other values - error 5566 **/ 5567 static int 5568 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 5569 { 5570 struct lpfc_sli *psli = &phba->sli; 5571 5572 /* 5573 * Driver resources common to all SLI revisions 5574 */ 5575 atomic_set(&phba->fast_event_count, 0); 5576 spin_lock_init(&phba->hbalock); 5577 5578 /* Initialize ndlp management spinlock */ 5579 spin_lock_init(&phba->ndlp_lock); 5580 5581 INIT_LIST_HEAD(&phba->port_list); 5582 INIT_LIST_HEAD(&phba->work_list); 5583 init_waitqueue_head(&phba->wait_4_mlo_m_q); 5584 5585 /* Initialize the wait queue head for the kernel thread */ 5586 init_waitqueue_head(&phba->work_waitq); 5587 5588 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5589 "1403 Protocols supported %s %s %s\n", 5590 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ? 5591 "SCSI" : " "), 5592 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ? 5593 "NVME" : " "), 5594 (phba->nvmet_support ? "NVMET" : " ")); 5595 5596 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 5597 /* Initialize the scsi buffer list used by driver for scsi IO */ 5598 spin_lock_init(&phba->scsi_buf_list_get_lock); 5599 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get); 5600 spin_lock_init(&phba->scsi_buf_list_put_lock); 5601 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 5602 } 5603 5604 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) && 5605 (phba->nvmet_support == 0)) { 5606 /* Initialize the NVME buffer list used by driver for NVME IO */ 5607 spin_lock_init(&phba->nvme_buf_list_get_lock); 5608 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get); 5609 spin_lock_init(&phba->nvme_buf_list_put_lock); 5610 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 5611 } 5612 5613 /* Initialize the fabric iocb list */ 5614 INIT_LIST_HEAD(&phba->fabric_iocb_list); 5615 5616 /* Initialize list to save ELS buffers */ 5617 INIT_LIST_HEAD(&phba->elsbuf); 5618 5619 /* Initialize FCF connection rec list */ 5620 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 5621 5622 /* Initialize OAS configuration list */ 5623 spin_lock_init(&phba->devicelock); 5624 INIT_LIST_HEAD(&phba->luns); 5625 5626 /* MBOX heartbeat timer */ 5627 setup_timer(&psli->mbox_tmo, lpfc_mbox_timeout, (unsigned long)phba); 5628 /* Fabric block timer */ 5629 setup_timer(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 5630 (unsigned long)phba); 5631 /* EA polling mode timer */ 5632 setup_timer(&phba->eratt_poll, lpfc_poll_eratt, 5633 (unsigned long)phba); 5634 /* Heartbeat timer */ 5635 setup_timer(&phba->hb_tmofunc, lpfc_hb_timeout, (unsigned long)phba); 5636 5637 return 0; 5638 } 5639 5640 /** 5641 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev 5642 * @phba: pointer to lpfc hba data structure. 5643 * 5644 * This routine is invoked to set up the driver internal resources specific to 5645 * support the SLI-3 HBA device it attached to. 5646 * 5647 * Return codes 5648 * 0 - successful 5649 * other values - error 5650 **/ 5651 static int 5652 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 5653 { 5654 int rc; 5655 5656 /* 5657 * Initialize timers used by driver 5658 */ 5659 5660 /* FCP polling mode timer */ 5661 setup_timer(&phba->fcp_poll_timer, lpfc_poll_timeout, 5662 (unsigned long)phba); 5663 5664 /* Host attention work mask setup */ 5665 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 5666 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 5667 5668 /* Get all the module params for configuring this host */ 5669 lpfc_get_cfgparam(phba); 5670 /* Set up phase-1 common device driver resources */ 5671 5672 rc = lpfc_setup_driver_resource_phase1(phba); 5673 if (rc) 5674 return -ENODEV; 5675 5676 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 5677 phba->menlo_flag |= HBA_MENLO_SUPPORT; 5678 /* check for menlo minimum sg count */ 5679 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 5680 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 5681 } 5682 5683 if (!phba->sli.sli3_ring) 5684 phba->sli.sli3_ring = kzalloc(LPFC_SLI3_MAX_RING * 5685 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 5686 if (!phba->sli.sli3_ring) 5687 return -ENOMEM; 5688 5689 /* 5690 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size 5691 * used to create the sg_dma_buf_pool must be dynamically calculated. 5692 */ 5693 5694 /* Initialize the host templates the configured values. */ 5695 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5696 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; 5697 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5698 5699 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */ 5700 if (phba->cfg_enable_bg) { 5701 /* 5702 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, 5703 * the FCP rsp, and a BDE for each. Sice we have no control 5704 * over how many protection data segments the SCSI Layer 5705 * will hand us (ie: there could be one for every block 5706 * in the IO), we just allocate enough BDEs to accomidate 5707 * our max amount and we need to limit lpfc_sg_seg_cnt to 5708 * minimize the risk of running out. 5709 */ 5710 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5711 sizeof(struct fcp_rsp) + 5712 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64)); 5713 5714 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF) 5715 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF; 5716 5717 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */ 5718 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT; 5719 } else { 5720 /* 5721 * The scsi_buf for a regular I/O will hold the FCP cmnd, 5722 * the FCP rsp, a BDE for each, and a BDE for up to 5723 * cfg_sg_seg_cnt data segments. 5724 */ 5725 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5726 sizeof(struct fcp_rsp) + 5727 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 5728 5729 /* Total BDEs in BPL for scsi_sg_list */ 5730 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5731 } 5732 5733 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5734 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n", 5735 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5736 phba->cfg_total_seg_cnt); 5737 5738 phba->max_vpi = LPFC_MAX_VPI; 5739 /* This will be set to correct value after config_port mbox */ 5740 phba->max_vports = 0; 5741 5742 /* 5743 * Initialize the SLI Layer to run with lpfc HBAs. 5744 */ 5745 lpfc_sli_setup(phba); 5746 lpfc_sli_queue_init(phba); 5747 5748 /* Allocate device driver memory */ 5749 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 5750 return -ENOMEM; 5751 5752 /* 5753 * Enable sr-iov virtual functions if supported and configured 5754 * through the module parameter. 5755 */ 5756 if (phba->cfg_sriov_nr_virtfn > 0) { 5757 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 5758 phba->cfg_sriov_nr_virtfn); 5759 if (rc) { 5760 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5761 "2808 Requested number of SR-IOV " 5762 "virtual functions (%d) is not " 5763 "supported\n", 5764 phba->cfg_sriov_nr_virtfn); 5765 phba->cfg_sriov_nr_virtfn = 0; 5766 } 5767 } 5768 5769 return 0; 5770 } 5771 5772 /** 5773 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 5774 * @phba: pointer to lpfc hba data structure. 5775 * 5776 * This routine is invoked to unset the driver internal resources set up 5777 * specific for supporting the SLI-3 HBA device it attached to. 5778 **/ 5779 static void 5780 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 5781 { 5782 /* Free device driver memory allocated */ 5783 lpfc_mem_free_all(phba); 5784 5785 return; 5786 } 5787 5788 /** 5789 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 5790 * @phba: pointer to lpfc hba data structure. 5791 * 5792 * This routine is invoked to set up the driver internal resources specific to 5793 * support the SLI-4 HBA device it attached to. 5794 * 5795 * Return codes 5796 * 0 - successful 5797 * other values - error 5798 **/ 5799 static int 5800 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 5801 { 5802 LPFC_MBOXQ_t *mboxq; 5803 MAILBOX_t *mb; 5804 int rc, i, max_buf_size; 5805 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 5806 struct lpfc_mqe *mqe; 5807 int longs; 5808 int fof_vectors = 0; 5809 uint64_t wwn; 5810 5811 phba->sli4_hba.num_online_cpu = num_online_cpus(); 5812 phba->sli4_hba.num_present_cpu = lpfc_present_cpu; 5813 phba->sli4_hba.curr_disp_cpu = 0; 5814 5815 /* Get all the module params for configuring this host */ 5816 lpfc_get_cfgparam(phba); 5817 5818 /* Set up phase-1 common device driver resources */ 5819 rc = lpfc_setup_driver_resource_phase1(phba); 5820 if (rc) 5821 return -ENODEV; 5822 5823 /* Before proceed, wait for POST done and device ready */ 5824 rc = lpfc_sli4_post_status_check(phba); 5825 if (rc) 5826 return -ENODEV; 5827 5828 /* 5829 * Initialize timers used by driver 5830 */ 5831 5832 setup_timer(&phba->rrq_tmr, lpfc_rrq_timeout, (unsigned long)phba); 5833 5834 /* FCF rediscover timer */ 5835 setup_timer(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 5836 (unsigned long)phba); 5837 5838 /* 5839 * Control structure for handling external multi-buffer mailbox 5840 * command pass-through. 5841 */ 5842 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 5843 sizeof(struct lpfc_mbox_ext_buf_ctx)); 5844 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 5845 5846 phba->max_vpi = LPFC_MAX_VPI; 5847 5848 /* This will be set to correct value after the read_config mbox */ 5849 phba->max_vports = 0; 5850 5851 /* Program the default value of vlan_id and fc_map */ 5852 phba->valid_vlan = 0; 5853 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 5854 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 5855 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 5856 5857 /* 5858 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands 5859 * we will associate a new ring, for each EQ/CQ/WQ tuple. 5860 * The WQ create will allocate the ring. 5861 */ 5862 5863 /* 5864 * It doesn't matter what family our adapter is in, we are 5865 * limited to 2 Pages, 512 SGEs, for our SGL. 5866 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp 5867 */ 5868 max_buf_size = (2 * SLI4_PAGE_SIZE); 5869 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2) 5870 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2; 5871 5872 /* 5873 * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size 5874 * used to create the sg_dma_buf_pool must be calculated. 5875 */ 5876 if (phba->cfg_enable_bg) { 5877 /* 5878 * The scsi_buf for a T10-DIF I/O holds the FCP cmnd, 5879 * the FCP rsp, and a SGE. Sice we have no control 5880 * over how many protection segments the SCSI Layer 5881 * will hand us (ie: there could be one for every block 5882 * in the IO), just allocate enough SGEs to accomidate 5883 * our max amount and we need to limit lpfc_sg_seg_cnt 5884 * to minimize the risk of running out. 5885 */ 5886 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5887 sizeof(struct fcp_rsp) + max_buf_size; 5888 5889 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */ 5890 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT; 5891 5892 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF) 5893 phba->cfg_sg_seg_cnt = 5894 LPFC_MAX_SG_SLI4_SEG_CNT_DIF; 5895 } else { 5896 /* 5897 * The scsi_buf for a regular I/O holds the FCP cmnd, 5898 * the FCP rsp, a SGE for each, and a SGE for up to 5899 * cfg_sg_seg_cnt data segments. 5900 */ 5901 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5902 sizeof(struct fcp_rsp) + 5903 ((phba->cfg_sg_seg_cnt + 2) * 5904 sizeof(struct sli4_sge)); 5905 5906 /* Total SGEs for scsi_sg_list */ 5907 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5908 5909 /* 5910 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only 5911 * need to post 1 page for the SGL. 5912 */ 5913 } 5914 5915 /* Initialize the host templates with the updated values. */ 5916 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5917 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5918 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; 5919 5920 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ) 5921 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ; 5922 else 5923 phba->cfg_sg_dma_buf_size = 5924 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size); 5925 5926 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5927 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n", 5928 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5929 phba->cfg_total_seg_cnt); 5930 5931 /* Initialize buffer queue management fields */ 5932 INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list); 5933 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 5934 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 5935 5936 /* 5937 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 5938 */ 5939 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 5940 /* Initialize the Abort scsi buffer list used by driver */ 5941 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 5942 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 5943 } 5944 5945 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 5946 /* Initialize the Abort nvme buffer list used by driver */ 5947 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock); 5948 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list); 5949 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 5950 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list); 5951 5952 /* Fast-path XRI aborted CQ Event work queue list */ 5953 INIT_LIST_HEAD(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue); 5954 } 5955 5956 /* This abort list used by worker thread */ 5957 spin_lock_init(&phba->sli4_hba.sgl_list_lock); 5958 spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock); 5959 5960 /* 5961 * Initialize driver internal slow-path work queues 5962 */ 5963 5964 /* Driver internel slow-path CQ Event pool */ 5965 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 5966 /* Response IOCB work queue list */ 5967 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 5968 /* Asynchronous event CQ Event work queue list */ 5969 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 5970 /* Fast-path XRI aborted CQ Event work queue list */ 5971 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 5972 /* Slow-path XRI aborted CQ Event work queue list */ 5973 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 5974 /* Receive queue CQ Event work queue list */ 5975 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 5976 5977 /* Initialize extent block lists. */ 5978 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 5979 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 5980 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 5981 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 5982 5983 /* Initialize mboxq lists. If the early init routines fail 5984 * these lists need to be correctly initialized. 5985 */ 5986 INIT_LIST_HEAD(&phba->sli.mboxq); 5987 INIT_LIST_HEAD(&phba->sli.mboxq_cmpl); 5988 5989 /* initialize optic_state to 0xFF */ 5990 phba->sli4_hba.lnk_info.optic_state = 0xff; 5991 5992 /* Allocate device driver memory */ 5993 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 5994 if (rc) 5995 return -ENOMEM; 5996 5997 /* IF Type 2 ports get initialized now. */ 5998 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5999 LPFC_SLI_INTF_IF_TYPE_2) { 6000 rc = lpfc_pci_function_reset(phba); 6001 if (unlikely(rc)) { 6002 rc = -ENODEV; 6003 goto out_free_mem; 6004 } 6005 phba->temp_sensor_support = 1; 6006 } 6007 6008 /* Create the bootstrap mailbox command */ 6009 rc = lpfc_create_bootstrap_mbox(phba); 6010 if (unlikely(rc)) 6011 goto out_free_mem; 6012 6013 /* Set up the host's endian order with the device. */ 6014 rc = lpfc_setup_endian_order(phba); 6015 if (unlikely(rc)) 6016 goto out_free_bsmbx; 6017 6018 /* Set up the hba's configuration parameters. */ 6019 rc = lpfc_sli4_read_config(phba); 6020 if (unlikely(rc)) 6021 goto out_free_bsmbx; 6022 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba); 6023 if (unlikely(rc)) 6024 goto out_free_bsmbx; 6025 6026 /* IF Type 0 ports get initialized now. */ 6027 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 6028 LPFC_SLI_INTF_IF_TYPE_0) { 6029 rc = lpfc_pci_function_reset(phba); 6030 if (unlikely(rc)) 6031 goto out_free_bsmbx; 6032 } 6033 6034 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6035 GFP_KERNEL); 6036 if (!mboxq) { 6037 rc = -ENOMEM; 6038 goto out_free_bsmbx; 6039 } 6040 6041 /* Check for NVMET being configured */ 6042 phba->nvmet_support = 0; 6043 if (lpfc_enable_nvmet_cnt) { 6044 6045 /* First get WWN of HBA instance */ 6046 lpfc_read_nv(phba, mboxq); 6047 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6048 if (rc != MBX_SUCCESS) { 6049 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6050 "6016 Mailbox failed , mbxCmd x%x " 6051 "READ_NV, mbxStatus x%x\n", 6052 bf_get(lpfc_mqe_command, &mboxq->u.mqe), 6053 bf_get(lpfc_mqe_status, &mboxq->u.mqe)); 6054 mempool_free(mboxq, phba->mbox_mem_pool); 6055 rc = -EIO; 6056 goto out_free_bsmbx; 6057 } 6058 mb = &mboxq->u.mb; 6059 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename, 6060 sizeof(uint64_t)); 6061 wwn = cpu_to_be64(wwn); 6062 phba->sli4_hba.wwnn.u.name = wwn; 6063 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, 6064 sizeof(uint64_t)); 6065 /* wwn is WWPN of HBA instance */ 6066 wwn = cpu_to_be64(wwn); 6067 phba->sli4_hba.wwpn.u.name = wwn; 6068 6069 /* Check to see if it matches any module parameter */ 6070 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) { 6071 if (wwn == lpfc_enable_nvmet[i]) { 6072 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC)) 6073 if (lpfc_nvmet_mem_alloc(phba)) 6074 break; 6075 6076 phba->nvmet_support = 1; /* a match */ 6077 6078 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6079 "6017 NVME Target %016llx\n", 6080 wwn); 6081 #else 6082 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6083 "6021 Can't enable NVME Target." 6084 " NVME_TARGET_FC infrastructure" 6085 " is not in kernel\n"); 6086 #endif 6087 break; 6088 } 6089 } 6090 } 6091 6092 lpfc_nvme_mod_param_dep(phba); 6093 6094 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 6095 lpfc_supported_pages(mboxq); 6096 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6097 if (!rc) { 6098 mqe = &mboxq->u.mqe; 6099 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 6100 LPFC_MAX_SUPPORTED_PAGES); 6101 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 6102 switch (pn_page[i]) { 6103 case LPFC_SLI4_PARAMETERS: 6104 phba->sli4_hba.pc_sli4_params.supported = 1; 6105 break; 6106 default: 6107 break; 6108 } 6109 } 6110 /* Read the port's SLI4 Parameters capabilities if supported. */ 6111 if (phba->sli4_hba.pc_sli4_params.supported) 6112 rc = lpfc_pc_sli4_params_get(phba, mboxq); 6113 if (rc) { 6114 mempool_free(mboxq, phba->mbox_mem_pool); 6115 rc = -EIO; 6116 goto out_free_bsmbx; 6117 } 6118 } 6119 6120 /* 6121 * Get sli4 parameters that override parameters from Port capabilities. 6122 * If this call fails, it isn't critical unless the SLI4 parameters come 6123 * back in conflict. 6124 */ 6125 rc = lpfc_get_sli4_parameters(phba, mboxq); 6126 if (rc) { 6127 if (phba->sli4_hba.extents_in_use && 6128 phba->sli4_hba.rpi_hdrs_in_use) { 6129 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6130 "2999 Unsupported SLI4 Parameters " 6131 "Extents and RPI headers enabled.\n"); 6132 } 6133 mempool_free(mboxq, phba->mbox_mem_pool); 6134 goto out_free_bsmbx; 6135 } 6136 6137 mempool_free(mboxq, phba->mbox_mem_pool); 6138 6139 /* Verify OAS is supported */ 6140 lpfc_sli4_oas_verify(phba); 6141 if (phba->cfg_fof) 6142 fof_vectors = 1; 6143 6144 /* Verify all the SLI4 queues */ 6145 rc = lpfc_sli4_queue_verify(phba); 6146 if (rc) 6147 goto out_free_bsmbx; 6148 6149 /* Create driver internal CQE event pool */ 6150 rc = lpfc_sli4_cq_event_pool_create(phba); 6151 if (rc) 6152 goto out_free_bsmbx; 6153 6154 /* Initialize sgl lists per host */ 6155 lpfc_init_sgl_list(phba); 6156 6157 /* Allocate and initialize active sgl array */ 6158 rc = lpfc_init_active_sgl_array(phba); 6159 if (rc) { 6160 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6161 "1430 Failed to initialize sgl list.\n"); 6162 goto out_destroy_cq_event_pool; 6163 } 6164 rc = lpfc_sli4_init_rpi_hdrs(phba); 6165 if (rc) { 6166 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6167 "1432 Failed to initialize rpi headers.\n"); 6168 goto out_free_active_sgl; 6169 } 6170 6171 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 6172 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 6173 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 6174 GFP_KERNEL); 6175 if (!phba->fcf.fcf_rr_bmask) { 6176 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6177 "2759 Failed allocate memory for FCF round " 6178 "robin failover bmask\n"); 6179 rc = -ENOMEM; 6180 goto out_remove_rpi_hdrs; 6181 } 6182 6183 phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs, 6184 sizeof(struct lpfc_hba_eq_hdl), 6185 GFP_KERNEL); 6186 if (!phba->sli4_hba.hba_eq_hdl) { 6187 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6188 "2572 Failed allocate memory for " 6189 "fast-path per-EQ handle array\n"); 6190 rc = -ENOMEM; 6191 goto out_free_fcf_rr_bmask; 6192 } 6193 6194 phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu, 6195 sizeof(struct lpfc_vector_map_info), 6196 GFP_KERNEL); 6197 if (!phba->sli4_hba.cpu_map) { 6198 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6199 "3327 Failed allocate memory for msi-x " 6200 "interrupt vector mapping\n"); 6201 rc = -ENOMEM; 6202 goto out_free_hba_eq_hdl; 6203 } 6204 if (lpfc_used_cpu == NULL) { 6205 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t), 6206 GFP_KERNEL); 6207 if (!lpfc_used_cpu) { 6208 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6209 "3335 Failed allocate memory for msi-x " 6210 "interrupt vector mapping\n"); 6211 kfree(phba->sli4_hba.cpu_map); 6212 rc = -ENOMEM; 6213 goto out_free_hba_eq_hdl; 6214 } 6215 for (i = 0; i < lpfc_present_cpu; i++) 6216 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY; 6217 } 6218 6219 /* 6220 * Enable sr-iov virtual functions if supported and configured 6221 * through the module parameter. 6222 */ 6223 if (phba->cfg_sriov_nr_virtfn > 0) { 6224 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 6225 phba->cfg_sriov_nr_virtfn); 6226 if (rc) { 6227 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6228 "3020 Requested number of SR-IOV " 6229 "virtual functions (%d) is not " 6230 "supported\n", 6231 phba->cfg_sriov_nr_virtfn); 6232 phba->cfg_sriov_nr_virtfn = 0; 6233 } 6234 } 6235 6236 return 0; 6237 6238 out_free_hba_eq_hdl: 6239 kfree(phba->sli4_hba.hba_eq_hdl); 6240 out_free_fcf_rr_bmask: 6241 kfree(phba->fcf.fcf_rr_bmask); 6242 out_remove_rpi_hdrs: 6243 lpfc_sli4_remove_rpi_hdrs(phba); 6244 out_free_active_sgl: 6245 lpfc_free_active_sgl(phba); 6246 out_destroy_cq_event_pool: 6247 lpfc_sli4_cq_event_pool_destroy(phba); 6248 out_free_bsmbx: 6249 lpfc_destroy_bootstrap_mbox(phba); 6250 out_free_mem: 6251 lpfc_mem_free(phba); 6252 return rc; 6253 } 6254 6255 /** 6256 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 6257 * @phba: pointer to lpfc hba data structure. 6258 * 6259 * This routine is invoked to unset the driver internal resources set up 6260 * specific for supporting the SLI-4 HBA device it attached to. 6261 **/ 6262 static void 6263 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 6264 { 6265 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6266 6267 /* Free memory allocated for msi-x interrupt vector to CPU mapping */ 6268 kfree(phba->sli4_hba.cpu_map); 6269 phba->sli4_hba.num_present_cpu = 0; 6270 phba->sli4_hba.num_online_cpu = 0; 6271 phba->sli4_hba.curr_disp_cpu = 0; 6272 6273 /* Free memory allocated for fast-path work queue handles */ 6274 kfree(phba->sli4_hba.hba_eq_hdl); 6275 6276 /* Free the allocated rpi headers. */ 6277 lpfc_sli4_remove_rpi_hdrs(phba); 6278 lpfc_sli4_remove_rpis(phba); 6279 6280 /* Free eligible FCF index bmask */ 6281 kfree(phba->fcf.fcf_rr_bmask); 6282 6283 /* Free the ELS sgl list */ 6284 lpfc_free_active_sgl(phba); 6285 lpfc_free_els_sgl_list(phba); 6286 lpfc_free_nvmet_sgl_list(phba); 6287 6288 /* Free the completion queue EQ event pool */ 6289 lpfc_sli4_cq_event_release_all(phba); 6290 lpfc_sli4_cq_event_pool_destroy(phba); 6291 6292 /* Release resource identifiers. */ 6293 lpfc_sli4_dealloc_resource_identifiers(phba); 6294 6295 /* Free the bsmbx region. */ 6296 lpfc_destroy_bootstrap_mbox(phba); 6297 6298 /* Free the SLI Layer memory with SLI4 HBAs */ 6299 lpfc_mem_free_all(phba); 6300 6301 /* Free the current connect table */ 6302 list_for_each_entry_safe(conn_entry, next_conn_entry, 6303 &phba->fcf_conn_rec_list, list) { 6304 list_del_init(&conn_entry->list); 6305 kfree(conn_entry); 6306 } 6307 6308 return; 6309 } 6310 6311 /** 6312 * lpfc_init_api_table_setup - Set up init api function jump table 6313 * @phba: The hba struct for which this call is being executed. 6314 * @dev_grp: The HBA PCI-Device group number. 6315 * 6316 * This routine sets up the device INIT interface API function jump table 6317 * in @phba struct. 6318 * 6319 * Returns: 0 - success, -ENODEV - failure. 6320 **/ 6321 int 6322 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 6323 { 6324 phba->lpfc_hba_init_link = lpfc_hba_init_link; 6325 phba->lpfc_hba_down_link = lpfc_hba_down_link; 6326 phba->lpfc_selective_reset = lpfc_selective_reset; 6327 switch (dev_grp) { 6328 case LPFC_PCI_DEV_LP: 6329 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 6330 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 6331 phba->lpfc_stop_port = lpfc_stop_port_s3; 6332 break; 6333 case LPFC_PCI_DEV_OC: 6334 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 6335 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 6336 phba->lpfc_stop_port = lpfc_stop_port_s4; 6337 break; 6338 default: 6339 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6340 "1431 Invalid HBA PCI-device group: 0x%x\n", 6341 dev_grp); 6342 return -ENODEV; 6343 break; 6344 } 6345 return 0; 6346 } 6347 6348 /** 6349 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 6350 * @phba: pointer to lpfc hba data structure. 6351 * 6352 * This routine is invoked to set up the driver internal resources after the 6353 * device specific resource setup to support the HBA device it attached to. 6354 * 6355 * Return codes 6356 * 0 - successful 6357 * other values - error 6358 **/ 6359 static int 6360 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 6361 { 6362 int error; 6363 6364 /* Startup the kernel thread for this host adapter. */ 6365 phba->worker_thread = kthread_run(lpfc_do_work, phba, 6366 "lpfc_worker_%d", phba->brd_no); 6367 if (IS_ERR(phba->worker_thread)) { 6368 error = PTR_ERR(phba->worker_thread); 6369 return error; 6370 } 6371 6372 return 0; 6373 } 6374 6375 /** 6376 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 6377 * @phba: pointer to lpfc hba data structure. 6378 * 6379 * This routine is invoked to unset the driver internal resources set up after 6380 * the device specific resource setup for supporting the HBA device it 6381 * attached to. 6382 **/ 6383 static void 6384 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 6385 { 6386 /* Stop kernel worker thread */ 6387 kthread_stop(phba->worker_thread); 6388 } 6389 6390 /** 6391 * lpfc_free_iocb_list - Free iocb list. 6392 * @phba: pointer to lpfc hba data structure. 6393 * 6394 * This routine is invoked to free the driver's IOCB list and memory. 6395 **/ 6396 void 6397 lpfc_free_iocb_list(struct lpfc_hba *phba) 6398 { 6399 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 6400 6401 spin_lock_irq(&phba->hbalock); 6402 list_for_each_entry_safe(iocbq_entry, iocbq_next, 6403 &phba->lpfc_iocb_list, list) { 6404 list_del(&iocbq_entry->list); 6405 kfree(iocbq_entry); 6406 phba->total_iocbq_bufs--; 6407 } 6408 spin_unlock_irq(&phba->hbalock); 6409 6410 return; 6411 } 6412 6413 /** 6414 * lpfc_init_iocb_list - Allocate and initialize iocb list. 6415 * @phba: pointer to lpfc hba data structure. 6416 * 6417 * This routine is invoked to allocate and initizlize the driver's IOCB 6418 * list and set up the IOCB tag array accordingly. 6419 * 6420 * Return codes 6421 * 0 - successful 6422 * other values - error 6423 **/ 6424 int 6425 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 6426 { 6427 struct lpfc_iocbq *iocbq_entry = NULL; 6428 uint16_t iotag; 6429 int i; 6430 6431 /* Initialize and populate the iocb list per host. */ 6432 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 6433 for (i = 0; i < iocb_count; i++) { 6434 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 6435 if (iocbq_entry == NULL) { 6436 printk(KERN_ERR "%s: only allocated %d iocbs of " 6437 "expected %d count. Unloading driver.\n", 6438 __func__, i, LPFC_IOCB_LIST_CNT); 6439 goto out_free_iocbq; 6440 } 6441 6442 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 6443 if (iotag == 0) { 6444 kfree(iocbq_entry); 6445 printk(KERN_ERR "%s: failed to allocate IOTAG. " 6446 "Unloading driver.\n", __func__); 6447 goto out_free_iocbq; 6448 } 6449 iocbq_entry->sli4_lxritag = NO_XRI; 6450 iocbq_entry->sli4_xritag = NO_XRI; 6451 6452 spin_lock_irq(&phba->hbalock); 6453 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 6454 phba->total_iocbq_bufs++; 6455 spin_unlock_irq(&phba->hbalock); 6456 } 6457 6458 return 0; 6459 6460 out_free_iocbq: 6461 lpfc_free_iocb_list(phba); 6462 6463 return -ENOMEM; 6464 } 6465 6466 /** 6467 * lpfc_free_sgl_list - Free a given sgl list. 6468 * @phba: pointer to lpfc hba data structure. 6469 * @sglq_list: pointer to the head of sgl list. 6470 * 6471 * This routine is invoked to free a give sgl list and memory. 6472 **/ 6473 void 6474 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) 6475 { 6476 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 6477 6478 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { 6479 list_del(&sglq_entry->list); 6480 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 6481 kfree(sglq_entry); 6482 } 6483 } 6484 6485 /** 6486 * lpfc_free_els_sgl_list - Free els sgl list. 6487 * @phba: pointer to lpfc hba data structure. 6488 * 6489 * This routine is invoked to free the driver's els sgl list and memory. 6490 **/ 6491 static void 6492 lpfc_free_els_sgl_list(struct lpfc_hba *phba) 6493 { 6494 LIST_HEAD(sglq_list); 6495 6496 /* Retrieve all els sgls from driver list */ 6497 spin_lock_irq(&phba->hbalock); 6498 spin_lock(&phba->sli4_hba.sgl_list_lock); 6499 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list); 6500 spin_unlock(&phba->sli4_hba.sgl_list_lock); 6501 spin_unlock_irq(&phba->hbalock); 6502 6503 /* Now free the sgl list */ 6504 lpfc_free_sgl_list(phba, &sglq_list); 6505 } 6506 6507 /** 6508 * lpfc_free_nvmet_sgl_list - Free nvmet sgl list. 6509 * @phba: pointer to lpfc hba data structure. 6510 * 6511 * This routine is invoked to free the driver's nvmet sgl list and memory. 6512 **/ 6513 static void 6514 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba) 6515 { 6516 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 6517 LIST_HEAD(sglq_list); 6518 6519 /* Retrieve all nvmet sgls from driver list */ 6520 spin_lock_irq(&phba->hbalock); 6521 spin_lock(&phba->sli4_hba.sgl_list_lock); 6522 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list); 6523 spin_unlock(&phba->sli4_hba.sgl_list_lock); 6524 spin_unlock_irq(&phba->hbalock); 6525 6526 /* Now free the sgl list */ 6527 list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) { 6528 list_del(&sglq_entry->list); 6529 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys); 6530 kfree(sglq_entry); 6531 } 6532 6533 /* Update the nvmet_xri_cnt to reflect no current sgls. 6534 * The next initialization cycle sets the count and allocates 6535 * the sgls over again. 6536 */ 6537 phba->sli4_hba.nvmet_xri_cnt = 0; 6538 } 6539 6540 /** 6541 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 6542 * @phba: pointer to lpfc hba data structure. 6543 * 6544 * This routine is invoked to allocate the driver's active sgl memory. 6545 * This array will hold the sglq_entry's for active IOs. 6546 **/ 6547 static int 6548 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 6549 { 6550 int size; 6551 size = sizeof(struct lpfc_sglq *); 6552 size *= phba->sli4_hba.max_cfg_param.max_xri; 6553 6554 phba->sli4_hba.lpfc_sglq_active_list = 6555 kzalloc(size, GFP_KERNEL); 6556 if (!phba->sli4_hba.lpfc_sglq_active_list) 6557 return -ENOMEM; 6558 return 0; 6559 } 6560 6561 /** 6562 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 6563 * @phba: pointer to lpfc hba data structure. 6564 * 6565 * This routine is invoked to walk through the array of active sglq entries 6566 * and free all of the resources. 6567 * This is just a place holder for now. 6568 **/ 6569 static void 6570 lpfc_free_active_sgl(struct lpfc_hba *phba) 6571 { 6572 kfree(phba->sli4_hba.lpfc_sglq_active_list); 6573 } 6574 6575 /** 6576 * lpfc_init_sgl_list - Allocate and initialize sgl list. 6577 * @phba: pointer to lpfc hba data structure. 6578 * 6579 * This routine is invoked to allocate and initizlize the driver's sgl 6580 * list and set up the sgl xritag tag array accordingly. 6581 * 6582 **/ 6583 static void 6584 lpfc_init_sgl_list(struct lpfc_hba *phba) 6585 { 6586 /* Initialize and populate the sglq list per host/VF. */ 6587 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list); 6588 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 6589 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list); 6590 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 6591 6592 /* els xri-sgl book keeping */ 6593 phba->sli4_hba.els_xri_cnt = 0; 6594 6595 /* scsi xri-buffer book keeping */ 6596 phba->sli4_hba.scsi_xri_cnt = 0; 6597 6598 /* nvme xri-buffer book keeping */ 6599 phba->sli4_hba.nvme_xri_cnt = 0; 6600 } 6601 6602 /** 6603 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 6604 * @phba: pointer to lpfc hba data structure. 6605 * 6606 * This routine is invoked to post rpi header templates to the 6607 * port for those SLI4 ports that do not support extents. This routine 6608 * posts a PAGE_SIZE memory region to the port to hold up to 6609 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 6610 * and should be called only when interrupts are disabled. 6611 * 6612 * Return codes 6613 * 0 - successful 6614 * -ERROR - otherwise. 6615 **/ 6616 int 6617 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 6618 { 6619 int rc = 0; 6620 struct lpfc_rpi_hdr *rpi_hdr; 6621 6622 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 6623 if (!phba->sli4_hba.rpi_hdrs_in_use) 6624 return rc; 6625 if (phba->sli4_hba.extents_in_use) 6626 return -EIO; 6627 6628 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 6629 if (!rpi_hdr) { 6630 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 6631 "0391 Error during rpi post operation\n"); 6632 lpfc_sli4_remove_rpis(phba); 6633 rc = -ENODEV; 6634 } 6635 6636 return rc; 6637 } 6638 6639 /** 6640 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 6641 * @phba: pointer to lpfc hba data structure. 6642 * 6643 * This routine is invoked to allocate a single 4KB memory region to 6644 * support rpis and stores them in the phba. This single region 6645 * provides support for up to 64 rpis. The region is used globally 6646 * by the device. 6647 * 6648 * Returns: 6649 * A valid rpi hdr on success. 6650 * A NULL pointer on any failure. 6651 **/ 6652 struct lpfc_rpi_hdr * 6653 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 6654 { 6655 uint16_t rpi_limit, curr_rpi_range; 6656 struct lpfc_dmabuf *dmabuf; 6657 struct lpfc_rpi_hdr *rpi_hdr; 6658 6659 /* 6660 * If the SLI4 port supports extents, posting the rpi header isn't 6661 * required. Set the expected maximum count and let the actual value 6662 * get set when extents are fully allocated. 6663 */ 6664 if (!phba->sli4_hba.rpi_hdrs_in_use) 6665 return NULL; 6666 if (phba->sli4_hba.extents_in_use) 6667 return NULL; 6668 6669 /* The limit on the logical index is just the max_rpi count. */ 6670 rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi; 6671 6672 spin_lock_irq(&phba->hbalock); 6673 /* 6674 * Establish the starting RPI in this header block. The starting 6675 * rpi is normalized to a zero base because the physical rpi is 6676 * port based. 6677 */ 6678 curr_rpi_range = phba->sli4_hba.next_rpi; 6679 spin_unlock_irq(&phba->hbalock); 6680 6681 /* Reached full RPI range */ 6682 if (curr_rpi_range == rpi_limit) 6683 return NULL; 6684 6685 /* 6686 * First allocate the protocol header region for the port. The 6687 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 6688 */ 6689 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 6690 if (!dmabuf) 6691 return NULL; 6692 6693 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, 6694 LPFC_HDR_TEMPLATE_SIZE, 6695 &dmabuf->phys, GFP_KERNEL); 6696 if (!dmabuf->virt) { 6697 rpi_hdr = NULL; 6698 goto err_free_dmabuf; 6699 } 6700 6701 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 6702 rpi_hdr = NULL; 6703 goto err_free_coherent; 6704 } 6705 6706 /* Save the rpi header data for cleanup later. */ 6707 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 6708 if (!rpi_hdr) 6709 goto err_free_coherent; 6710 6711 rpi_hdr->dmabuf = dmabuf; 6712 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 6713 rpi_hdr->page_count = 1; 6714 spin_lock_irq(&phba->hbalock); 6715 6716 /* The rpi_hdr stores the logical index only. */ 6717 rpi_hdr->start_rpi = curr_rpi_range; 6718 rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT; 6719 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 6720 6721 spin_unlock_irq(&phba->hbalock); 6722 return rpi_hdr; 6723 6724 err_free_coherent: 6725 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 6726 dmabuf->virt, dmabuf->phys); 6727 err_free_dmabuf: 6728 kfree(dmabuf); 6729 return NULL; 6730 } 6731 6732 /** 6733 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 6734 * @phba: pointer to lpfc hba data structure. 6735 * 6736 * This routine is invoked to remove all memory resources allocated 6737 * to support rpis for SLI4 ports not supporting extents. This routine 6738 * presumes the caller has released all rpis consumed by fabric or port 6739 * logins and is prepared to have the header pages removed. 6740 **/ 6741 void 6742 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 6743 { 6744 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 6745 6746 if (!phba->sli4_hba.rpi_hdrs_in_use) 6747 goto exit; 6748 6749 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 6750 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 6751 list_del(&rpi_hdr->list); 6752 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 6753 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 6754 kfree(rpi_hdr->dmabuf); 6755 kfree(rpi_hdr); 6756 } 6757 exit: 6758 /* There are no rpis available to the port now. */ 6759 phba->sli4_hba.next_rpi = 0; 6760 } 6761 6762 /** 6763 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 6764 * @pdev: pointer to pci device data structure. 6765 * 6766 * This routine is invoked to allocate the driver hba data structure for an 6767 * HBA device. If the allocation is successful, the phba reference to the 6768 * PCI device data structure is set. 6769 * 6770 * Return codes 6771 * pointer to @phba - successful 6772 * NULL - error 6773 **/ 6774 static struct lpfc_hba * 6775 lpfc_hba_alloc(struct pci_dev *pdev) 6776 { 6777 struct lpfc_hba *phba; 6778 6779 /* Allocate memory for HBA structure */ 6780 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 6781 if (!phba) { 6782 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 6783 return NULL; 6784 } 6785 6786 /* Set reference to PCI device in HBA structure */ 6787 phba->pcidev = pdev; 6788 6789 /* Assign an unused board number */ 6790 phba->brd_no = lpfc_get_instance(); 6791 if (phba->brd_no < 0) { 6792 kfree(phba); 6793 return NULL; 6794 } 6795 phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL; 6796 6797 spin_lock_init(&phba->ct_ev_lock); 6798 INIT_LIST_HEAD(&phba->ct_ev_waiters); 6799 6800 return phba; 6801 } 6802 6803 /** 6804 * lpfc_hba_free - Free driver hba data structure with a device. 6805 * @phba: pointer to lpfc hba data structure. 6806 * 6807 * This routine is invoked to free the driver hba data structure with an 6808 * HBA device. 6809 **/ 6810 static void 6811 lpfc_hba_free(struct lpfc_hba *phba) 6812 { 6813 /* Release the driver assigned board number */ 6814 idr_remove(&lpfc_hba_index, phba->brd_no); 6815 6816 /* Free memory allocated with sli3 rings */ 6817 kfree(phba->sli.sli3_ring); 6818 phba->sli.sli3_ring = NULL; 6819 6820 kfree(phba); 6821 return; 6822 } 6823 6824 /** 6825 * lpfc_create_shost - Create hba physical port with associated scsi host. 6826 * @phba: pointer to lpfc hba data structure. 6827 * 6828 * This routine is invoked to create HBA physical port and associate a SCSI 6829 * host with it. 6830 * 6831 * Return codes 6832 * 0 - successful 6833 * other values - error 6834 **/ 6835 static int 6836 lpfc_create_shost(struct lpfc_hba *phba) 6837 { 6838 struct lpfc_vport *vport; 6839 struct Scsi_Host *shost; 6840 6841 /* Initialize HBA FC structure */ 6842 phba->fc_edtov = FF_DEF_EDTOV; 6843 phba->fc_ratov = FF_DEF_RATOV; 6844 phba->fc_altov = FF_DEF_ALTOV; 6845 phba->fc_arbtov = FF_DEF_ARBTOV; 6846 6847 atomic_set(&phba->sdev_cnt, 0); 6848 atomic_set(&phba->fc4ScsiInputRequests, 0); 6849 atomic_set(&phba->fc4ScsiOutputRequests, 0); 6850 atomic_set(&phba->fc4ScsiControlRequests, 0); 6851 atomic_set(&phba->fc4ScsiIoCmpls, 0); 6852 atomic_set(&phba->fc4NvmeInputRequests, 0); 6853 atomic_set(&phba->fc4NvmeOutputRequests, 0); 6854 atomic_set(&phba->fc4NvmeControlRequests, 0); 6855 atomic_set(&phba->fc4NvmeIoCmpls, 0); 6856 atomic_set(&phba->fc4NvmeLsRequests, 0); 6857 atomic_set(&phba->fc4NvmeLsCmpls, 0); 6858 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 6859 if (!vport) 6860 return -ENODEV; 6861 6862 shost = lpfc_shost_from_vport(vport); 6863 phba->pport = vport; 6864 6865 if (phba->nvmet_support) { 6866 /* Only 1 vport (pport) will support NVME target */ 6867 if (phba->txrdy_payload_pool == NULL) { 6868 phba->txrdy_payload_pool = dma_pool_create( 6869 "txrdy_pool", &phba->pcidev->dev, 6870 TXRDY_PAYLOAD_LEN, 16, 0); 6871 if (phba->txrdy_payload_pool) { 6872 phba->targetport = NULL; 6873 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME; 6874 lpfc_printf_log(phba, KERN_INFO, 6875 LOG_INIT | LOG_NVME_DISC, 6876 "6076 NVME Target Found\n"); 6877 } 6878 } 6879 } 6880 6881 lpfc_debugfs_initialize(vport); 6882 /* Put reference to SCSI host to driver's device private data */ 6883 pci_set_drvdata(phba->pcidev, shost); 6884 6885 /* 6886 * At this point we are fully registered with PSA. In addition, 6887 * any initial discovery should be completed. 6888 */ 6889 vport->load_flag |= FC_ALLOW_FDMI; 6890 if (phba->cfg_enable_SmartSAN || 6891 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) { 6892 6893 /* Setup appropriate attribute masks */ 6894 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR; 6895 if (phba->cfg_enable_SmartSAN) 6896 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR; 6897 else 6898 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR; 6899 } 6900 return 0; 6901 } 6902 6903 /** 6904 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 6905 * @phba: pointer to lpfc hba data structure. 6906 * 6907 * This routine is invoked to destroy HBA physical port and the associated 6908 * SCSI host. 6909 **/ 6910 static void 6911 lpfc_destroy_shost(struct lpfc_hba *phba) 6912 { 6913 struct lpfc_vport *vport = phba->pport; 6914 6915 /* Destroy physical port that associated with the SCSI host */ 6916 destroy_port(vport); 6917 6918 return; 6919 } 6920 6921 /** 6922 * lpfc_setup_bg - Setup Block guard structures and debug areas. 6923 * @phba: pointer to lpfc hba data structure. 6924 * @shost: the shost to be used to detect Block guard settings. 6925 * 6926 * This routine sets up the local Block guard protocol settings for @shost. 6927 * This routine also allocates memory for debugging bg buffers. 6928 **/ 6929 static void 6930 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 6931 { 6932 uint32_t old_mask; 6933 uint32_t old_guard; 6934 6935 int pagecnt = 10; 6936 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 6937 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6938 "1478 Registering BlockGuard with the " 6939 "SCSI layer\n"); 6940 6941 old_mask = phba->cfg_prot_mask; 6942 old_guard = phba->cfg_prot_guard; 6943 6944 /* Only allow supported values */ 6945 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | 6946 SHOST_DIX_TYPE0_PROTECTION | 6947 SHOST_DIX_TYPE1_PROTECTION); 6948 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP | 6949 SHOST_DIX_GUARD_CRC); 6950 6951 /* DIF Type 1 protection for profiles AST1/C1 is end to end */ 6952 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION) 6953 phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; 6954 6955 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 6956 if ((old_mask != phba->cfg_prot_mask) || 6957 (old_guard != phba->cfg_prot_guard)) 6958 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6959 "1475 Registering BlockGuard with the " 6960 "SCSI layer: mask %d guard %d\n", 6961 phba->cfg_prot_mask, 6962 phba->cfg_prot_guard); 6963 6964 scsi_host_set_prot(shost, phba->cfg_prot_mask); 6965 scsi_host_set_guard(shost, phba->cfg_prot_guard); 6966 } else 6967 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6968 "1479 Not Registering BlockGuard with the SCSI " 6969 "layer, Bad protection parameters: %d %d\n", 6970 old_mask, old_guard); 6971 } 6972 6973 if (!_dump_buf_data) { 6974 while (pagecnt) { 6975 spin_lock_init(&_dump_buf_lock); 6976 _dump_buf_data = 6977 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 6978 if (_dump_buf_data) { 6979 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6980 "9043 BLKGRD: allocated %d pages for " 6981 "_dump_buf_data at 0x%p\n", 6982 (1 << pagecnt), _dump_buf_data); 6983 _dump_buf_data_order = pagecnt; 6984 memset(_dump_buf_data, 0, 6985 ((1 << PAGE_SHIFT) << pagecnt)); 6986 break; 6987 } else 6988 --pagecnt; 6989 } 6990 if (!_dump_buf_data_order) 6991 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6992 "9044 BLKGRD: ERROR unable to allocate " 6993 "memory for hexdump\n"); 6994 } else 6995 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6996 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 6997 "\n", _dump_buf_data); 6998 if (!_dump_buf_dif) { 6999 while (pagecnt) { 7000 _dump_buf_dif = 7001 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 7002 if (_dump_buf_dif) { 7003 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7004 "9046 BLKGRD: allocated %d pages for " 7005 "_dump_buf_dif at 0x%p\n", 7006 (1 << pagecnt), _dump_buf_dif); 7007 _dump_buf_dif_order = pagecnt; 7008 memset(_dump_buf_dif, 0, 7009 ((1 << PAGE_SHIFT) << pagecnt)); 7010 break; 7011 } else 7012 --pagecnt; 7013 } 7014 if (!_dump_buf_dif_order) 7015 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7016 "9047 BLKGRD: ERROR unable to allocate " 7017 "memory for hexdump\n"); 7018 } else 7019 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7020 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 7021 _dump_buf_dif); 7022 } 7023 7024 /** 7025 * lpfc_post_init_setup - Perform necessary device post initialization setup. 7026 * @phba: pointer to lpfc hba data structure. 7027 * 7028 * This routine is invoked to perform all the necessary post initialization 7029 * setup for the device. 7030 **/ 7031 static void 7032 lpfc_post_init_setup(struct lpfc_hba *phba) 7033 { 7034 struct Scsi_Host *shost; 7035 struct lpfc_adapter_event_header adapter_event; 7036 7037 /* Get the default values for Model Name and Description */ 7038 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 7039 7040 /* 7041 * hba setup may have changed the hba_queue_depth so we need to 7042 * adjust the value of can_queue. 7043 */ 7044 shost = pci_get_drvdata(phba->pcidev); 7045 shost->can_queue = phba->cfg_hba_queue_depth - 10; 7046 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 7047 lpfc_setup_bg(phba, shost); 7048 7049 lpfc_host_attrib_init(shost); 7050 7051 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 7052 spin_lock_irq(shost->host_lock); 7053 lpfc_poll_start_timer(phba); 7054 spin_unlock_irq(shost->host_lock); 7055 } 7056 7057 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7058 "0428 Perform SCSI scan\n"); 7059 /* Send board arrival event to upper layer */ 7060 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 7061 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 7062 fc_host_post_vendor_event(shost, fc_get_event_number(), 7063 sizeof(adapter_event), 7064 (char *) &adapter_event, 7065 LPFC_NL_VENDOR_ID); 7066 return; 7067 } 7068 7069 /** 7070 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 7071 * @phba: pointer to lpfc hba data structure. 7072 * 7073 * This routine is invoked to set up the PCI device memory space for device 7074 * with SLI-3 interface spec. 7075 * 7076 * Return codes 7077 * 0 - successful 7078 * other values - error 7079 **/ 7080 static int 7081 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 7082 { 7083 struct pci_dev *pdev; 7084 unsigned long bar0map_len, bar2map_len; 7085 int i, hbq_count; 7086 void *ptr; 7087 int error = -ENODEV; 7088 7089 /* Obtain PCI device reference */ 7090 if (!phba->pcidev) 7091 return error; 7092 else 7093 pdev = phba->pcidev; 7094 7095 /* Set the device DMA mask size */ 7096 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 7097 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 7098 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 7099 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 7100 return error; 7101 } 7102 } 7103 7104 /* Get the bus address of Bar0 and Bar2 and the number of bytes 7105 * required by each mapping. 7106 */ 7107 phba->pci_bar0_map = pci_resource_start(pdev, 0); 7108 bar0map_len = pci_resource_len(pdev, 0); 7109 7110 phba->pci_bar2_map = pci_resource_start(pdev, 2); 7111 bar2map_len = pci_resource_len(pdev, 2); 7112 7113 /* Map HBA SLIM to a kernel virtual address. */ 7114 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 7115 if (!phba->slim_memmap_p) { 7116 dev_printk(KERN_ERR, &pdev->dev, 7117 "ioremap failed for SLIM memory.\n"); 7118 goto out; 7119 } 7120 7121 /* Map HBA Control Registers to a kernel virtual address. */ 7122 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 7123 if (!phba->ctrl_regs_memmap_p) { 7124 dev_printk(KERN_ERR, &pdev->dev, 7125 "ioremap failed for HBA control registers.\n"); 7126 goto out_iounmap_slim; 7127 } 7128 7129 /* Allocate memory for SLI-2 structures */ 7130 phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7131 &phba->slim2p.phys, GFP_KERNEL); 7132 if (!phba->slim2p.virt) 7133 goto out_iounmap; 7134 7135 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 7136 phba->mbox_ext = (phba->slim2p.virt + 7137 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 7138 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 7139 phba->IOCBs = (phba->slim2p.virt + 7140 offsetof(struct lpfc_sli2_slim, IOCBs)); 7141 7142 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 7143 lpfc_sli_hbq_size(), 7144 &phba->hbqslimp.phys, 7145 GFP_KERNEL); 7146 if (!phba->hbqslimp.virt) 7147 goto out_free_slim; 7148 7149 hbq_count = lpfc_sli_hbq_count(); 7150 ptr = phba->hbqslimp.virt; 7151 for (i = 0; i < hbq_count; ++i) { 7152 phba->hbqs[i].hbq_virt = ptr; 7153 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 7154 ptr += (lpfc_hbq_defs[i]->entry_count * 7155 sizeof(struct lpfc_hbq_entry)); 7156 } 7157 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 7158 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 7159 7160 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 7161 7162 phba->MBslimaddr = phba->slim_memmap_p; 7163 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 7164 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 7165 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 7166 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 7167 7168 return 0; 7169 7170 out_free_slim: 7171 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7172 phba->slim2p.virt, phba->slim2p.phys); 7173 out_iounmap: 7174 iounmap(phba->ctrl_regs_memmap_p); 7175 out_iounmap_slim: 7176 iounmap(phba->slim_memmap_p); 7177 out: 7178 return error; 7179 } 7180 7181 /** 7182 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 7183 * @phba: pointer to lpfc hba data structure. 7184 * 7185 * This routine is invoked to unset the PCI device memory space for device 7186 * with SLI-3 interface spec. 7187 **/ 7188 static void 7189 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 7190 { 7191 struct pci_dev *pdev; 7192 7193 /* Obtain PCI device reference */ 7194 if (!phba->pcidev) 7195 return; 7196 else 7197 pdev = phba->pcidev; 7198 7199 /* Free coherent DMA memory allocated */ 7200 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 7201 phba->hbqslimp.virt, phba->hbqslimp.phys); 7202 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7203 phba->slim2p.virt, phba->slim2p.phys); 7204 7205 /* I/O memory unmap */ 7206 iounmap(phba->ctrl_regs_memmap_p); 7207 iounmap(phba->slim_memmap_p); 7208 7209 return; 7210 } 7211 7212 /** 7213 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 7214 * @phba: pointer to lpfc hba data structure. 7215 * 7216 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 7217 * done and check status. 7218 * 7219 * Return 0 if successful, otherwise -ENODEV. 7220 **/ 7221 int 7222 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 7223 { 7224 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 7225 struct lpfc_register reg_data; 7226 int i, port_error = 0; 7227 uint32_t if_type; 7228 7229 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 7230 memset(®_data, 0, sizeof(reg_data)); 7231 if (!phba->sli4_hba.PSMPHRregaddr) 7232 return -ENODEV; 7233 7234 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 7235 for (i = 0; i < 3000; i++) { 7236 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 7237 &portsmphr_reg.word0) || 7238 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 7239 /* Port has a fatal POST error, break out */ 7240 port_error = -ENODEV; 7241 break; 7242 } 7243 if (LPFC_POST_STAGE_PORT_READY == 7244 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 7245 break; 7246 msleep(10); 7247 } 7248 7249 /* 7250 * If there was a port error during POST, then don't proceed with 7251 * other register reads as the data may not be valid. Just exit. 7252 */ 7253 if (port_error) { 7254 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7255 "1408 Port Failed POST - portsmphr=0x%x, " 7256 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 7257 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 7258 portsmphr_reg.word0, 7259 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 7260 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 7261 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 7262 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 7263 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 7264 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 7265 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 7266 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 7267 } else { 7268 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7269 "2534 Device Info: SLIFamily=0x%x, " 7270 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 7271 "SLIHint_2=0x%x, FT=0x%x\n", 7272 bf_get(lpfc_sli_intf_sli_family, 7273 &phba->sli4_hba.sli_intf), 7274 bf_get(lpfc_sli_intf_slirev, 7275 &phba->sli4_hba.sli_intf), 7276 bf_get(lpfc_sli_intf_if_type, 7277 &phba->sli4_hba.sli_intf), 7278 bf_get(lpfc_sli_intf_sli_hint1, 7279 &phba->sli4_hba.sli_intf), 7280 bf_get(lpfc_sli_intf_sli_hint2, 7281 &phba->sli4_hba.sli_intf), 7282 bf_get(lpfc_sli_intf_func_type, 7283 &phba->sli4_hba.sli_intf)); 7284 /* 7285 * Check for other Port errors during the initialization 7286 * process. Fail the load if the port did not come up 7287 * correctly. 7288 */ 7289 if_type = bf_get(lpfc_sli_intf_if_type, 7290 &phba->sli4_hba.sli_intf); 7291 switch (if_type) { 7292 case LPFC_SLI_INTF_IF_TYPE_0: 7293 phba->sli4_hba.ue_mask_lo = 7294 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 7295 phba->sli4_hba.ue_mask_hi = 7296 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 7297 uerrlo_reg.word0 = 7298 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 7299 uerrhi_reg.word0 = 7300 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 7301 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 7302 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 7303 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7304 "1422 Unrecoverable Error " 7305 "Detected during POST " 7306 "uerr_lo_reg=0x%x, " 7307 "uerr_hi_reg=0x%x, " 7308 "ue_mask_lo_reg=0x%x, " 7309 "ue_mask_hi_reg=0x%x\n", 7310 uerrlo_reg.word0, 7311 uerrhi_reg.word0, 7312 phba->sli4_hba.ue_mask_lo, 7313 phba->sli4_hba.ue_mask_hi); 7314 port_error = -ENODEV; 7315 } 7316 break; 7317 case LPFC_SLI_INTF_IF_TYPE_2: 7318 /* Final checks. The port status should be clean. */ 7319 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 7320 ®_data.word0) || 7321 (bf_get(lpfc_sliport_status_err, ®_data) && 7322 !bf_get(lpfc_sliport_status_rn, ®_data))) { 7323 phba->work_status[0] = 7324 readl(phba->sli4_hba.u.if_type2. 7325 ERR1regaddr); 7326 phba->work_status[1] = 7327 readl(phba->sli4_hba.u.if_type2. 7328 ERR2regaddr); 7329 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7330 "2888 Unrecoverable port error " 7331 "following POST: port status reg " 7332 "0x%x, port_smphr reg 0x%x, " 7333 "error 1=0x%x, error 2=0x%x\n", 7334 reg_data.word0, 7335 portsmphr_reg.word0, 7336 phba->work_status[0], 7337 phba->work_status[1]); 7338 port_error = -ENODEV; 7339 } 7340 break; 7341 case LPFC_SLI_INTF_IF_TYPE_1: 7342 default: 7343 break; 7344 } 7345 } 7346 return port_error; 7347 } 7348 7349 /** 7350 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 7351 * @phba: pointer to lpfc hba data structure. 7352 * @if_type: The SLI4 interface type getting configured. 7353 * 7354 * This routine is invoked to set up SLI4 BAR0 PCI config space register 7355 * memory map. 7356 **/ 7357 static void 7358 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 7359 { 7360 switch (if_type) { 7361 case LPFC_SLI_INTF_IF_TYPE_0: 7362 phba->sli4_hba.u.if_type0.UERRLOregaddr = 7363 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 7364 phba->sli4_hba.u.if_type0.UERRHIregaddr = 7365 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 7366 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 7367 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 7368 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 7369 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 7370 phba->sli4_hba.SLIINTFregaddr = 7371 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 7372 break; 7373 case LPFC_SLI_INTF_IF_TYPE_2: 7374 phba->sli4_hba.u.if_type2.EQDregaddr = 7375 phba->sli4_hba.conf_regs_memmap_p + 7376 LPFC_CTL_PORT_EQ_DELAY_OFFSET; 7377 phba->sli4_hba.u.if_type2.ERR1regaddr = 7378 phba->sli4_hba.conf_regs_memmap_p + 7379 LPFC_CTL_PORT_ER1_OFFSET; 7380 phba->sli4_hba.u.if_type2.ERR2regaddr = 7381 phba->sli4_hba.conf_regs_memmap_p + 7382 LPFC_CTL_PORT_ER2_OFFSET; 7383 phba->sli4_hba.u.if_type2.CTRLregaddr = 7384 phba->sli4_hba.conf_regs_memmap_p + 7385 LPFC_CTL_PORT_CTL_OFFSET; 7386 phba->sli4_hba.u.if_type2.STATUSregaddr = 7387 phba->sli4_hba.conf_regs_memmap_p + 7388 LPFC_CTL_PORT_STA_OFFSET; 7389 phba->sli4_hba.SLIINTFregaddr = 7390 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 7391 phba->sli4_hba.PSMPHRregaddr = 7392 phba->sli4_hba.conf_regs_memmap_p + 7393 LPFC_CTL_PORT_SEM_OFFSET; 7394 phba->sli4_hba.RQDBregaddr = 7395 phba->sli4_hba.conf_regs_memmap_p + 7396 LPFC_ULP0_RQ_DOORBELL; 7397 phba->sli4_hba.WQDBregaddr = 7398 phba->sli4_hba.conf_regs_memmap_p + 7399 LPFC_ULP0_WQ_DOORBELL; 7400 phba->sli4_hba.EQCQDBregaddr = 7401 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 7402 phba->sli4_hba.MQDBregaddr = 7403 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 7404 phba->sli4_hba.BMBXregaddr = 7405 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 7406 break; 7407 case LPFC_SLI_INTF_IF_TYPE_1: 7408 default: 7409 dev_printk(KERN_ERR, &phba->pcidev->dev, 7410 "FATAL - unsupported SLI4 interface type - %d\n", 7411 if_type); 7412 break; 7413 } 7414 } 7415 7416 /** 7417 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 7418 * @phba: pointer to lpfc hba data structure. 7419 * 7420 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 7421 * memory map. 7422 **/ 7423 static void 7424 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 7425 { 7426 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7427 LPFC_SLIPORT_IF0_SMPHR; 7428 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7429 LPFC_HST_ISR0; 7430 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7431 LPFC_HST_IMR0; 7432 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7433 LPFC_HST_ISCR0; 7434 } 7435 7436 /** 7437 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 7438 * @phba: pointer to lpfc hba data structure. 7439 * @vf: virtual function number 7440 * 7441 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 7442 * based on the given viftual function number, @vf. 7443 * 7444 * Return 0 if successful, otherwise -ENODEV. 7445 **/ 7446 static int 7447 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 7448 { 7449 if (vf > LPFC_VIR_FUNC_MAX) 7450 return -ENODEV; 7451 7452 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7453 vf * LPFC_VFR_PAGE_SIZE + 7454 LPFC_ULP0_RQ_DOORBELL); 7455 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7456 vf * LPFC_VFR_PAGE_SIZE + 7457 LPFC_ULP0_WQ_DOORBELL); 7458 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7459 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 7460 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7461 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 7462 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7463 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 7464 return 0; 7465 } 7466 7467 /** 7468 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 7469 * @phba: pointer to lpfc hba data structure. 7470 * 7471 * This routine is invoked to create the bootstrap mailbox 7472 * region consistent with the SLI-4 interface spec. This 7473 * routine allocates all memory necessary to communicate 7474 * mailbox commands to the port and sets up all alignment 7475 * needs. No locks are expected to be held when calling 7476 * this routine. 7477 * 7478 * Return codes 7479 * 0 - successful 7480 * -ENOMEM - could not allocated memory. 7481 **/ 7482 static int 7483 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 7484 { 7485 uint32_t bmbx_size; 7486 struct lpfc_dmabuf *dmabuf; 7487 struct dma_address *dma_address; 7488 uint32_t pa_addr; 7489 uint64_t phys_addr; 7490 7491 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 7492 if (!dmabuf) 7493 return -ENOMEM; 7494 7495 /* 7496 * The bootstrap mailbox region is comprised of 2 parts 7497 * plus an alignment restriction of 16 bytes. 7498 */ 7499 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 7500 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size, 7501 &dmabuf->phys, GFP_KERNEL); 7502 if (!dmabuf->virt) { 7503 kfree(dmabuf); 7504 return -ENOMEM; 7505 } 7506 7507 /* 7508 * Initialize the bootstrap mailbox pointers now so that the register 7509 * operations are simple later. The mailbox dma address is required 7510 * to be 16-byte aligned. Also align the virtual memory as each 7511 * maibox is copied into the bmbx mailbox region before issuing the 7512 * command to the port. 7513 */ 7514 phba->sli4_hba.bmbx.dmabuf = dmabuf; 7515 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 7516 7517 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 7518 LPFC_ALIGN_16_BYTE); 7519 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 7520 LPFC_ALIGN_16_BYTE); 7521 7522 /* 7523 * Set the high and low physical addresses now. The SLI4 alignment 7524 * requirement is 16 bytes and the mailbox is posted to the port 7525 * as two 30-bit addresses. The other data is a bit marking whether 7526 * the 30-bit address is the high or low address. 7527 * Upcast bmbx aphys to 64bits so shift instruction compiles 7528 * clean on 32 bit machines. 7529 */ 7530 dma_address = &phba->sli4_hba.bmbx.dma_address; 7531 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 7532 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 7533 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 7534 LPFC_BMBX_BIT1_ADDR_HI); 7535 7536 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 7537 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 7538 LPFC_BMBX_BIT1_ADDR_LO); 7539 return 0; 7540 } 7541 7542 /** 7543 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 7544 * @phba: pointer to lpfc hba data structure. 7545 * 7546 * This routine is invoked to teardown the bootstrap mailbox 7547 * region and release all host resources. This routine requires 7548 * the caller to ensure all mailbox commands recovered, no 7549 * additional mailbox comands are sent, and interrupts are disabled 7550 * before calling this routine. 7551 * 7552 **/ 7553 static void 7554 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 7555 { 7556 dma_free_coherent(&phba->pcidev->dev, 7557 phba->sli4_hba.bmbx.bmbx_size, 7558 phba->sli4_hba.bmbx.dmabuf->virt, 7559 phba->sli4_hba.bmbx.dmabuf->phys); 7560 7561 kfree(phba->sli4_hba.bmbx.dmabuf); 7562 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 7563 } 7564 7565 /** 7566 * lpfc_sli4_read_config - Get the config parameters. 7567 * @phba: pointer to lpfc hba data structure. 7568 * 7569 * This routine is invoked to read the configuration parameters from the HBA. 7570 * The configuration parameters are used to set the base and maximum values 7571 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 7572 * allocation for the port. 7573 * 7574 * Return codes 7575 * 0 - successful 7576 * -ENOMEM - No available memory 7577 * -EIO - The mailbox failed to complete successfully. 7578 **/ 7579 int 7580 lpfc_sli4_read_config(struct lpfc_hba *phba) 7581 { 7582 LPFC_MBOXQ_t *pmb; 7583 struct lpfc_mbx_read_config *rd_config; 7584 union lpfc_sli4_cfg_shdr *shdr; 7585 uint32_t shdr_status, shdr_add_status; 7586 struct lpfc_mbx_get_func_cfg *get_func_cfg; 7587 struct lpfc_rsrc_desc_fcfcoe *desc; 7588 char *pdesc_0; 7589 uint16_t forced_link_speed; 7590 uint32_t if_type; 7591 int length, i, rc = 0, rc2; 7592 7593 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7594 if (!pmb) { 7595 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7596 "2011 Unable to allocate memory for issuing " 7597 "SLI_CONFIG_SPECIAL mailbox command\n"); 7598 return -ENOMEM; 7599 } 7600 7601 lpfc_read_config(phba, pmb); 7602 7603 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7604 if (rc != MBX_SUCCESS) { 7605 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7606 "2012 Mailbox failed , mbxCmd x%x " 7607 "READ_CONFIG, mbxStatus x%x\n", 7608 bf_get(lpfc_mqe_command, &pmb->u.mqe), 7609 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 7610 rc = -EIO; 7611 } else { 7612 rd_config = &pmb->u.mqe.un.rd_config; 7613 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 7614 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 7615 phba->sli4_hba.lnk_info.lnk_tp = 7616 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 7617 phba->sli4_hba.lnk_info.lnk_no = 7618 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 7619 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7620 "3081 lnk_type:%d, lnk_numb:%d\n", 7621 phba->sli4_hba.lnk_info.lnk_tp, 7622 phba->sli4_hba.lnk_info.lnk_no); 7623 } else 7624 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 7625 "3082 Mailbox (x%x) returned ldv:x0\n", 7626 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 7627 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) { 7628 phba->bbcredit_support = 1; 7629 phba->sli4_hba.bbscn_params.word0 = rd_config->word8; 7630 } 7631 7632 phba->sli4_hba.extents_in_use = 7633 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 7634 phba->sli4_hba.max_cfg_param.max_xri = 7635 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 7636 phba->sli4_hba.max_cfg_param.xri_base = 7637 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 7638 phba->sli4_hba.max_cfg_param.max_vpi = 7639 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 7640 phba->sli4_hba.max_cfg_param.vpi_base = 7641 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 7642 phba->sli4_hba.max_cfg_param.max_rpi = 7643 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 7644 phba->sli4_hba.max_cfg_param.rpi_base = 7645 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 7646 phba->sli4_hba.max_cfg_param.max_vfi = 7647 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 7648 phba->sli4_hba.max_cfg_param.vfi_base = 7649 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 7650 phba->sli4_hba.max_cfg_param.max_fcfi = 7651 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 7652 phba->sli4_hba.max_cfg_param.max_eq = 7653 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 7654 phba->sli4_hba.max_cfg_param.max_rq = 7655 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 7656 phba->sli4_hba.max_cfg_param.max_wq = 7657 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 7658 phba->sli4_hba.max_cfg_param.max_cq = 7659 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 7660 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 7661 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 7662 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 7663 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 7664 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 7665 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 7666 phba->max_vports = phba->max_vpi; 7667 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7668 "2003 cfg params Extents? %d " 7669 "XRI(B:%d M:%d), " 7670 "VPI(B:%d M:%d) " 7671 "VFI(B:%d M:%d) " 7672 "RPI(B:%d M:%d) " 7673 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n", 7674 phba->sli4_hba.extents_in_use, 7675 phba->sli4_hba.max_cfg_param.xri_base, 7676 phba->sli4_hba.max_cfg_param.max_xri, 7677 phba->sli4_hba.max_cfg_param.vpi_base, 7678 phba->sli4_hba.max_cfg_param.max_vpi, 7679 phba->sli4_hba.max_cfg_param.vfi_base, 7680 phba->sli4_hba.max_cfg_param.max_vfi, 7681 phba->sli4_hba.max_cfg_param.rpi_base, 7682 phba->sli4_hba.max_cfg_param.max_rpi, 7683 phba->sli4_hba.max_cfg_param.max_fcfi, 7684 phba->sli4_hba.max_cfg_param.max_eq, 7685 phba->sli4_hba.max_cfg_param.max_cq, 7686 phba->sli4_hba.max_cfg_param.max_wq, 7687 phba->sli4_hba.max_cfg_param.max_rq); 7688 7689 } 7690 7691 if (rc) 7692 goto read_cfg_out; 7693 7694 /* Update link speed if forced link speed is supported */ 7695 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7696 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7697 forced_link_speed = 7698 bf_get(lpfc_mbx_rd_conf_link_speed, rd_config); 7699 if (forced_link_speed) { 7700 phba->hba_flag |= HBA_FORCED_LINK_SPEED; 7701 7702 switch (forced_link_speed) { 7703 case LINK_SPEED_1G: 7704 phba->cfg_link_speed = 7705 LPFC_USER_LINK_SPEED_1G; 7706 break; 7707 case LINK_SPEED_2G: 7708 phba->cfg_link_speed = 7709 LPFC_USER_LINK_SPEED_2G; 7710 break; 7711 case LINK_SPEED_4G: 7712 phba->cfg_link_speed = 7713 LPFC_USER_LINK_SPEED_4G; 7714 break; 7715 case LINK_SPEED_8G: 7716 phba->cfg_link_speed = 7717 LPFC_USER_LINK_SPEED_8G; 7718 break; 7719 case LINK_SPEED_10G: 7720 phba->cfg_link_speed = 7721 LPFC_USER_LINK_SPEED_10G; 7722 break; 7723 case LINK_SPEED_16G: 7724 phba->cfg_link_speed = 7725 LPFC_USER_LINK_SPEED_16G; 7726 break; 7727 case LINK_SPEED_32G: 7728 phba->cfg_link_speed = 7729 LPFC_USER_LINK_SPEED_32G; 7730 break; 7731 case 0xffff: 7732 phba->cfg_link_speed = 7733 LPFC_USER_LINK_SPEED_AUTO; 7734 break; 7735 default: 7736 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7737 "0047 Unrecognized link " 7738 "speed : %d\n", 7739 forced_link_speed); 7740 phba->cfg_link_speed = 7741 LPFC_USER_LINK_SPEED_AUTO; 7742 } 7743 } 7744 } 7745 7746 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 7747 length = phba->sli4_hba.max_cfg_param.max_xri - 7748 lpfc_sli4_get_els_iocb_cnt(phba); 7749 if (phba->cfg_hba_queue_depth > length) { 7750 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7751 "3361 HBA queue depth changed from %d to %d\n", 7752 phba->cfg_hba_queue_depth, length); 7753 phba->cfg_hba_queue_depth = length; 7754 } 7755 7756 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 7757 LPFC_SLI_INTF_IF_TYPE_2) 7758 goto read_cfg_out; 7759 7760 /* get the pf# and vf# for SLI4 if_type 2 port */ 7761 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 7762 sizeof(struct lpfc_sli4_cfg_mhdr)); 7763 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 7764 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 7765 length, LPFC_SLI4_MBX_EMBED); 7766 7767 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7768 shdr = (union lpfc_sli4_cfg_shdr *) 7769 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 7770 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7771 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 7772 if (rc2 || shdr_status || shdr_add_status) { 7773 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7774 "3026 Mailbox failed , mbxCmd x%x " 7775 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 7776 bf_get(lpfc_mqe_command, &pmb->u.mqe), 7777 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 7778 goto read_cfg_out; 7779 } 7780 7781 /* search for fc_fcoe resrouce descriptor */ 7782 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 7783 7784 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0]; 7785 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0; 7786 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc); 7787 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD) 7788 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH; 7789 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH) 7790 goto read_cfg_out; 7791 7792 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 7793 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i); 7794 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 7795 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) { 7796 phba->sli4_hba.iov.pf_number = 7797 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 7798 phba->sli4_hba.iov.vf_number = 7799 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 7800 break; 7801 } 7802 } 7803 7804 if (i < LPFC_RSRC_DESC_MAX_NUM) 7805 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7806 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 7807 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 7808 phba->sli4_hba.iov.vf_number); 7809 else 7810 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7811 "3028 GET_FUNCTION_CONFIG: failed to find " 7812 "Resrouce Descriptor:x%x\n", 7813 LPFC_RSRC_DESC_TYPE_FCFCOE); 7814 7815 read_cfg_out: 7816 mempool_free(pmb, phba->mbox_mem_pool); 7817 return rc; 7818 } 7819 7820 /** 7821 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 7822 * @phba: pointer to lpfc hba data structure. 7823 * 7824 * This routine is invoked to setup the port-side endian order when 7825 * the port if_type is 0. This routine has no function for other 7826 * if_types. 7827 * 7828 * Return codes 7829 * 0 - successful 7830 * -ENOMEM - No available memory 7831 * -EIO - The mailbox failed to complete successfully. 7832 **/ 7833 static int 7834 lpfc_setup_endian_order(struct lpfc_hba *phba) 7835 { 7836 LPFC_MBOXQ_t *mboxq; 7837 uint32_t if_type, rc = 0; 7838 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 7839 HOST_ENDIAN_HIGH_WORD1}; 7840 7841 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7842 switch (if_type) { 7843 case LPFC_SLI_INTF_IF_TYPE_0: 7844 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7845 GFP_KERNEL); 7846 if (!mboxq) { 7847 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7848 "0492 Unable to allocate memory for " 7849 "issuing SLI_CONFIG_SPECIAL mailbox " 7850 "command\n"); 7851 return -ENOMEM; 7852 } 7853 7854 /* 7855 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 7856 * two words to contain special data values and no other data. 7857 */ 7858 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 7859 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 7860 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7861 if (rc != MBX_SUCCESS) { 7862 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7863 "0493 SLI_CONFIG_SPECIAL mailbox " 7864 "failed with status x%x\n", 7865 rc); 7866 rc = -EIO; 7867 } 7868 mempool_free(mboxq, phba->mbox_mem_pool); 7869 break; 7870 case LPFC_SLI_INTF_IF_TYPE_2: 7871 case LPFC_SLI_INTF_IF_TYPE_1: 7872 default: 7873 break; 7874 } 7875 return rc; 7876 } 7877 7878 /** 7879 * lpfc_sli4_queue_verify - Verify and update EQ counts 7880 * @phba: pointer to lpfc hba data structure. 7881 * 7882 * This routine is invoked to check the user settable queue counts for EQs. 7883 * After this routine is called the counts will be set to valid values that 7884 * adhere to the constraints of the system's interrupt vectors and the port's 7885 * queue resources. 7886 * 7887 * Return codes 7888 * 0 - successful 7889 * -ENOMEM - No available memory 7890 **/ 7891 static int 7892 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 7893 { 7894 int io_channel; 7895 int fof_vectors = phba->cfg_fof ? 1 : 0; 7896 7897 /* 7898 * Sanity check for configured queue parameters against the run-time 7899 * device parameters 7900 */ 7901 7902 /* Sanity check on HBA EQ parameters */ 7903 io_channel = phba->io_channel_irqs; 7904 7905 if (phba->sli4_hba.num_online_cpu < io_channel) { 7906 lpfc_printf_log(phba, 7907 KERN_ERR, LOG_INIT, 7908 "3188 Reducing IO channels to match number of " 7909 "online CPUs: from %d to %d\n", 7910 io_channel, phba->sli4_hba.num_online_cpu); 7911 io_channel = phba->sli4_hba.num_online_cpu; 7912 } 7913 7914 if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) { 7915 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7916 "2575 Reducing IO channels to match number of " 7917 "available EQs: from %d to %d\n", 7918 io_channel, 7919 phba->sli4_hba.max_cfg_param.max_eq); 7920 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors; 7921 } 7922 7923 /* The actual number of FCP / NVME event queues adopted */ 7924 if (io_channel != phba->io_channel_irqs) 7925 phba->io_channel_irqs = io_channel; 7926 if (phba->cfg_fcp_io_channel > io_channel) 7927 phba->cfg_fcp_io_channel = io_channel; 7928 if (phba->cfg_nvme_io_channel > io_channel) 7929 phba->cfg_nvme_io_channel = io_channel; 7930 if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq) 7931 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel; 7932 7933 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7934 "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n", 7935 phba->io_channel_irqs, phba->cfg_fcp_io_channel, 7936 phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq); 7937 7938 /* Get EQ depth from module parameter, fake the default for now */ 7939 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 7940 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 7941 7942 /* Get CQ depth from module parameter, fake the default for now */ 7943 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 7944 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 7945 return 0; 7946 } 7947 7948 static int 7949 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx) 7950 { 7951 struct lpfc_queue *qdesc; 7952 int cnt; 7953 7954 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7955 phba->sli4_hba.cq_ecount); 7956 if (!qdesc) { 7957 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7958 "0508 Failed allocate fast-path NVME CQ (%d)\n", 7959 wqidx); 7960 return 1; 7961 } 7962 phba->sli4_hba.nvme_cq[wqidx] = qdesc; 7963 7964 cnt = LPFC_NVME_WQSIZE; 7965 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_WQE128_SIZE, cnt); 7966 if (!qdesc) { 7967 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7968 "0509 Failed allocate fast-path NVME WQ (%d)\n", 7969 wqidx); 7970 return 1; 7971 } 7972 phba->sli4_hba.nvme_wq[wqidx] = qdesc; 7973 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 7974 return 0; 7975 } 7976 7977 static int 7978 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx) 7979 { 7980 struct lpfc_queue *qdesc; 7981 uint32_t wqesize; 7982 7983 /* Create Fast Path FCP CQs */ 7984 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7985 phba->sli4_hba.cq_ecount); 7986 if (!qdesc) { 7987 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7988 "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx); 7989 return 1; 7990 } 7991 phba->sli4_hba.fcp_cq[wqidx] = qdesc; 7992 7993 /* Create Fast Path FCP WQs */ 7994 wqesize = (phba->fcp_embed_io) ? 7995 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; 7996 qdesc = lpfc_sli4_queue_alloc(phba, wqesize, phba->sli4_hba.wq_ecount); 7997 if (!qdesc) { 7998 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7999 "0503 Failed allocate fast-path FCP WQ (%d)\n", 8000 wqidx); 8001 return 1; 8002 } 8003 phba->sli4_hba.fcp_wq[wqidx] = qdesc; 8004 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8005 return 0; 8006 } 8007 8008 /** 8009 * lpfc_sli4_queue_create - Create all the SLI4 queues 8010 * @phba: pointer to lpfc hba data structure. 8011 * 8012 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 8013 * operation. For each SLI4 queue type, the parameters such as queue entry 8014 * count (queue depth) shall be taken from the module parameter. For now, 8015 * we just use some constant number as place holder. 8016 * 8017 * Return codes 8018 * 0 - successful 8019 * -ENOMEM - No availble memory 8020 * -EIO - The mailbox failed to complete successfully. 8021 **/ 8022 int 8023 lpfc_sli4_queue_create(struct lpfc_hba *phba) 8024 { 8025 struct lpfc_queue *qdesc; 8026 int idx, io_channel; 8027 8028 /* 8029 * Create HBA Record arrays. 8030 * Both NVME and FCP will share that same vectors / EQs 8031 */ 8032 io_channel = phba->io_channel_irqs; 8033 if (!io_channel) 8034 return -ERANGE; 8035 8036 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 8037 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 8038 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 8039 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 8040 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 8041 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 8042 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 8043 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 8044 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 8045 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 8046 8047 phba->sli4_hba.hba_eq = kcalloc(io_channel, 8048 sizeof(struct lpfc_queue *), 8049 GFP_KERNEL); 8050 if (!phba->sli4_hba.hba_eq) { 8051 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8052 "2576 Failed allocate memory for " 8053 "fast-path EQ record array\n"); 8054 goto out_error; 8055 } 8056 8057 if (phba->cfg_fcp_io_channel) { 8058 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel, 8059 sizeof(struct lpfc_queue *), 8060 GFP_KERNEL); 8061 if (!phba->sli4_hba.fcp_cq) { 8062 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8063 "2577 Failed allocate memory for " 8064 "fast-path CQ record array\n"); 8065 goto out_error; 8066 } 8067 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel, 8068 sizeof(struct lpfc_queue *), 8069 GFP_KERNEL); 8070 if (!phba->sli4_hba.fcp_wq) { 8071 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8072 "2578 Failed allocate memory for " 8073 "fast-path FCP WQ record array\n"); 8074 goto out_error; 8075 } 8076 /* 8077 * Since the first EQ can have multiple CQs associated with it, 8078 * this array is used to quickly see if we have a FCP fast-path 8079 * CQ match. 8080 */ 8081 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel, 8082 sizeof(uint16_t), 8083 GFP_KERNEL); 8084 if (!phba->sli4_hba.fcp_cq_map) { 8085 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8086 "2545 Failed allocate memory for " 8087 "fast-path CQ map\n"); 8088 goto out_error; 8089 } 8090 } 8091 8092 if (phba->cfg_nvme_io_channel) { 8093 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel, 8094 sizeof(struct lpfc_queue *), 8095 GFP_KERNEL); 8096 if (!phba->sli4_hba.nvme_cq) { 8097 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8098 "6077 Failed allocate memory for " 8099 "fast-path CQ record array\n"); 8100 goto out_error; 8101 } 8102 8103 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel, 8104 sizeof(struct lpfc_queue *), 8105 GFP_KERNEL); 8106 if (!phba->sli4_hba.nvme_wq) { 8107 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8108 "2581 Failed allocate memory for " 8109 "fast-path NVME WQ record array\n"); 8110 goto out_error; 8111 } 8112 8113 /* 8114 * Since the first EQ can have multiple CQs associated with it, 8115 * this array is used to quickly see if we have a NVME fast-path 8116 * CQ match. 8117 */ 8118 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel, 8119 sizeof(uint16_t), 8120 GFP_KERNEL); 8121 if (!phba->sli4_hba.nvme_cq_map) { 8122 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8123 "6078 Failed allocate memory for " 8124 "fast-path CQ map\n"); 8125 goto out_error; 8126 } 8127 8128 if (phba->nvmet_support) { 8129 phba->sli4_hba.nvmet_cqset = kcalloc( 8130 phba->cfg_nvmet_mrq, 8131 sizeof(struct lpfc_queue *), 8132 GFP_KERNEL); 8133 if (!phba->sli4_hba.nvmet_cqset) { 8134 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8135 "3121 Fail allocate memory for " 8136 "fast-path CQ set array\n"); 8137 goto out_error; 8138 } 8139 phba->sli4_hba.nvmet_mrq_hdr = kcalloc( 8140 phba->cfg_nvmet_mrq, 8141 sizeof(struct lpfc_queue *), 8142 GFP_KERNEL); 8143 if (!phba->sli4_hba.nvmet_mrq_hdr) { 8144 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8145 "3122 Fail allocate memory for " 8146 "fast-path RQ set hdr array\n"); 8147 goto out_error; 8148 } 8149 phba->sli4_hba.nvmet_mrq_data = kcalloc( 8150 phba->cfg_nvmet_mrq, 8151 sizeof(struct lpfc_queue *), 8152 GFP_KERNEL); 8153 if (!phba->sli4_hba.nvmet_mrq_data) { 8154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8155 "3124 Fail allocate memory for " 8156 "fast-path RQ set data array\n"); 8157 goto out_error; 8158 } 8159 } 8160 } 8161 8162 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 8163 8164 /* Create HBA Event Queues (EQs) */ 8165 for (idx = 0; idx < io_channel; idx++) { 8166 /* Create EQs */ 8167 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 8168 phba->sli4_hba.eq_ecount); 8169 if (!qdesc) { 8170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8171 "0497 Failed allocate EQ (%d)\n", idx); 8172 goto out_error; 8173 } 8174 phba->sli4_hba.hba_eq[idx] = qdesc; 8175 } 8176 8177 /* FCP and NVME io channels are not required to be balanced */ 8178 8179 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 8180 if (lpfc_alloc_fcp_wq_cq(phba, idx)) 8181 goto out_error; 8182 8183 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) 8184 if (lpfc_alloc_nvme_wq_cq(phba, idx)) 8185 goto out_error; 8186 8187 if (phba->nvmet_support) { 8188 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 8189 qdesc = lpfc_sli4_queue_alloc(phba, 8190 phba->sli4_hba.cq_esize, 8191 phba->sli4_hba.cq_ecount); 8192 if (!qdesc) { 8193 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8194 "3142 Failed allocate NVME " 8195 "CQ Set (%d)\n", idx); 8196 goto out_error; 8197 } 8198 phba->sli4_hba.nvmet_cqset[idx] = qdesc; 8199 } 8200 } 8201 8202 /* 8203 * Create Slow Path Completion Queues (CQs) 8204 */ 8205 8206 /* Create slow-path Mailbox Command Complete Queue */ 8207 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8208 phba->sli4_hba.cq_ecount); 8209 if (!qdesc) { 8210 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8211 "0500 Failed allocate slow-path mailbox CQ\n"); 8212 goto out_error; 8213 } 8214 phba->sli4_hba.mbx_cq = qdesc; 8215 8216 /* Create slow-path ELS Complete Queue */ 8217 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8218 phba->sli4_hba.cq_ecount); 8219 if (!qdesc) { 8220 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8221 "0501 Failed allocate slow-path ELS CQ\n"); 8222 goto out_error; 8223 } 8224 phba->sli4_hba.els_cq = qdesc; 8225 8226 8227 /* 8228 * Create Slow Path Work Queues (WQs) 8229 */ 8230 8231 /* Create Mailbox Command Queue */ 8232 8233 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 8234 phba->sli4_hba.mq_ecount); 8235 if (!qdesc) { 8236 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8237 "0505 Failed allocate slow-path MQ\n"); 8238 goto out_error; 8239 } 8240 phba->sli4_hba.mbx_wq = qdesc; 8241 8242 /* 8243 * Create ELS Work Queues 8244 */ 8245 8246 /* Create slow-path ELS Work Queue */ 8247 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 8248 phba->sli4_hba.wq_ecount); 8249 if (!qdesc) { 8250 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8251 "0504 Failed allocate slow-path ELS WQ\n"); 8252 goto out_error; 8253 } 8254 phba->sli4_hba.els_wq = qdesc; 8255 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8256 8257 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 8258 /* Create NVME LS Complete Queue */ 8259 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8260 phba->sli4_hba.cq_ecount); 8261 if (!qdesc) { 8262 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8263 "6079 Failed allocate NVME LS CQ\n"); 8264 goto out_error; 8265 } 8266 phba->sli4_hba.nvmels_cq = qdesc; 8267 8268 /* Create NVME LS Work Queue */ 8269 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 8270 phba->sli4_hba.wq_ecount); 8271 if (!qdesc) { 8272 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8273 "6080 Failed allocate NVME LS WQ\n"); 8274 goto out_error; 8275 } 8276 phba->sli4_hba.nvmels_wq = qdesc; 8277 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8278 } 8279 8280 /* 8281 * Create Receive Queue (RQ) 8282 */ 8283 8284 /* Create Receive Queue for header */ 8285 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 8286 phba->sli4_hba.rq_ecount); 8287 if (!qdesc) { 8288 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8289 "0506 Failed allocate receive HRQ\n"); 8290 goto out_error; 8291 } 8292 phba->sli4_hba.hdr_rq = qdesc; 8293 8294 /* Create Receive Queue for data */ 8295 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 8296 phba->sli4_hba.rq_ecount); 8297 if (!qdesc) { 8298 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8299 "0507 Failed allocate receive DRQ\n"); 8300 goto out_error; 8301 } 8302 phba->sli4_hba.dat_rq = qdesc; 8303 8304 if (phba->nvmet_support) { 8305 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 8306 /* Create NVMET Receive Queue for header */ 8307 qdesc = lpfc_sli4_queue_alloc(phba, 8308 phba->sli4_hba.rq_esize, 8309 LPFC_NVMET_RQE_DEF_COUNT); 8310 if (!qdesc) { 8311 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8312 "3146 Failed allocate " 8313 "receive HRQ\n"); 8314 goto out_error; 8315 } 8316 phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc; 8317 8318 /* Only needed for header of RQ pair */ 8319 qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb), 8320 GFP_KERNEL); 8321 if (qdesc->rqbp == NULL) { 8322 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8323 "6131 Failed allocate " 8324 "Header RQBP\n"); 8325 goto out_error; 8326 } 8327 8328 /* Put list in known state in case driver load fails. */ 8329 INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list); 8330 8331 /* Create NVMET Receive Queue for data */ 8332 qdesc = lpfc_sli4_queue_alloc(phba, 8333 phba->sli4_hba.rq_esize, 8334 LPFC_NVMET_RQE_DEF_COUNT); 8335 if (!qdesc) { 8336 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8337 "3156 Failed allocate " 8338 "receive DRQ\n"); 8339 goto out_error; 8340 } 8341 phba->sli4_hba.nvmet_mrq_data[idx] = qdesc; 8342 } 8343 } 8344 8345 /* Create the Queues needed for Flash Optimized Fabric operations */ 8346 if (phba->cfg_fof) 8347 lpfc_fof_queue_create(phba); 8348 return 0; 8349 8350 out_error: 8351 lpfc_sli4_queue_destroy(phba); 8352 return -ENOMEM; 8353 } 8354 8355 static inline void 8356 __lpfc_sli4_release_queue(struct lpfc_queue **qp) 8357 { 8358 if (*qp != NULL) { 8359 lpfc_sli4_queue_free(*qp); 8360 *qp = NULL; 8361 } 8362 } 8363 8364 static inline void 8365 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max) 8366 { 8367 int idx; 8368 8369 if (*qs == NULL) 8370 return; 8371 8372 for (idx = 0; idx < max; idx++) 8373 __lpfc_sli4_release_queue(&(*qs)[idx]); 8374 8375 kfree(*qs); 8376 *qs = NULL; 8377 } 8378 8379 static inline void 8380 lpfc_sli4_release_queue_map(uint16_t **qmap) 8381 { 8382 if (*qmap != NULL) { 8383 kfree(*qmap); 8384 *qmap = NULL; 8385 } 8386 } 8387 8388 /** 8389 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 8390 * @phba: pointer to lpfc hba data structure. 8391 * 8392 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 8393 * operation. 8394 * 8395 * Return codes 8396 * 0 - successful 8397 * -ENOMEM - No available memory 8398 * -EIO - The mailbox failed to complete successfully. 8399 **/ 8400 void 8401 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 8402 { 8403 if (phba->cfg_fof) 8404 lpfc_fof_queue_destroy(phba); 8405 8406 /* Release HBA eqs */ 8407 lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs); 8408 8409 /* Release FCP cqs */ 8410 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq, 8411 phba->cfg_fcp_io_channel); 8412 8413 /* Release FCP wqs */ 8414 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq, 8415 phba->cfg_fcp_io_channel); 8416 8417 /* Release FCP CQ mapping array */ 8418 lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map); 8419 8420 /* Release NVME cqs */ 8421 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq, 8422 phba->cfg_nvme_io_channel); 8423 8424 /* Release NVME wqs */ 8425 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq, 8426 phba->cfg_nvme_io_channel); 8427 8428 /* Release NVME CQ mapping array */ 8429 lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map); 8430 8431 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset, 8432 phba->cfg_nvmet_mrq); 8433 8434 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr, 8435 phba->cfg_nvmet_mrq); 8436 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data, 8437 phba->cfg_nvmet_mrq); 8438 8439 /* Release mailbox command work queue */ 8440 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq); 8441 8442 /* Release ELS work queue */ 8443 __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq); 8444 8445 /* Release ELS work queue */ 8446 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq); 8447 8448 /* Release unsolicited receive queue */ 8449 __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq); 8450 __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq); 8451 8452 /* Release ELS complete queue */ 8453 __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq); 8454 8455 /* Release NVME LS complete queue */ 8456 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq); 8457 8458 /* Release mailbox command complete queue */ 8459 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq); 8460 8461 /* Everything on this list has been freed */ 8462 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 8463 } 8464 8465 int 8466 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq) 8467 { 8468 struct lpfc_rqb *rqbp; 8469 struct lpfc_dmabuf *h_buf; 8470 struct rqb_dmabuf *rqb_buffer; 8471 8472 rqbp = rq->rqbp; 8473 while (!list_empty(&rqbp->rqb_buffer_list)) { 8474 list_remove_head(&rqbp->rqb_buffer_list, h_buf, 8475 struct lpfc_dmabuf, list); 8476 8477 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf); 8478 (rqbp->rqb_free_buffer)(phba, rqb_buffer); 8479 rqbp->buffer_count--; 8480 } 8481 return 1; 8482 } 8483 8484 static int 8485 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq, 8486 struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map, 8487 int qidx, uint32_t qtype) 8488 { 8489 struct lpfc_sli_ring *pring; 8490 int rc; 8491 8492 if (!eq || !cq || !wq) { 8493 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8494 "6085 Fast-path %s (%d) not allocated\n", 8495 ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx); 8496 return -ENOMEM; 8497 } 8498 8499 /* create the Cq first */ 8500 rc = lpfc_cq_create(phba, cq, eq, 8501 (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype); 8502 if (rc) { 8503 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8504 "6086 Failed setup of CQ (%d), rc = 0x%x\n", 8505 qidx, (uint32_t)rc); 8506 return rc; 8507 } 8508 8509 if (qtype != LPFC_MBOX) { 8510 /* Setup nvme_cq_map for fast lookup */ 8511 if (cq_map) 8512 *cq_map = cq->queue_id; 8513 8514 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8515 "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n", 8516 qidx, cq->queue_id, qidx, eq->queue_id); 8517 8518 /* create the wq */ 8519 rc = lpfc_wq_create(phba, wq, cq, qtype); 8520 if (rc) { 8521 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8522 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n", 8523 qidx, (uint32_t)rc); 8524 /* no need to tear down cq - caller will do so */ 8525 return rc; 8526 } 8527 8528 /* Bind this CQ/WQ to the NVME ring */ 8529 pring = wq->pring; 8530 pring->sli.sli4.wqp = (void *)wq; 8531 cq->pring = pring; 8532 8533 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8534 "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n", 8535 qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id); 8536 } else { 8537 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX); 8538 if (rc) { 8539 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8540 "0539 Failed setup of slow-path MQ: " 8541 "rc = 0x%x\n", rc); 8542 /* no need to tear down cq - caller will do so */ 8543 return rc; 8544 } 8545 8546 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8547 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 8548 phba->sli4_hba.mbx_wq->queue_id, 8549 phba->sli4_hba.mbx_cq->queue_id); 8550 } 8551 8552 return 0; 8553 } 8554 8555 /** 8556 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 8557 * @phba: pointer to lpfc hba data structure. 8558 * 8559 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 8560 * operation. 8561 * 8562 * Return codes 8563 * 0 - successful 8564 * -ENOMEM - No available memory 8565 * -EIO - The mailbox failed to complete successfully. 8566 **/ 8567 int 8568 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 8569 { 8570 uint32_t shdr_status, shdr_add_status; 8571 union lpfc_sli4_cfg_shdr *shdr; 8572 LPFC_MBOXQ_t *mboxq; 8573 int qidx; 8574 uint32_t length, io_channel; 8575 int rc = -ENOMEM; 8576 8577 /* Check for dual-ULP support */ 8578 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 8579 if (!mboxq) { 8580 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8581 "3249 Unable to allocate memory for " 8582 "QUERY_FW_CFG mailbox command\n"); 8583 return -ENOMEM; 8584 } 8585 length = (sizeof(struct lpfc_mbx_query_fw_config) - 8586 sizeof(struct lpfc_sli4_cfg_mhdr)); 8587 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8588 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 8589 length, LPFC_SLI4_MBX_EMBED); 8590 8591 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8592 8593 shdr = (union lpfc_sli4_cfg_shdr *) 8594 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 8595 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 8596 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 8597 if (shdr_status || shdr_add_status || rc) { 8598 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8599 "3250 QUERY_FW_CFG mailbox failed with status " 8600 "x%x add_status x%x, mbx status x%x\n", 8601 shdr_status, shdr_add_status, rc); 8602 if (rc != MBX_TIMEOUT) 8603 mempool_free(mboxq, phba->mbox_mem_pool); 8604 rc = -ENXIO; 8605 goto out_error; 8606 } 8607 8608 phba->sli4_hba.fw_func_mode = 8609 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode; 8610 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode; 8611 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode; 8612 phba->sli4_hba.physical_port = 8613 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port; 8614 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8615 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, " 8616 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode, 8617 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode); 8618 8619 if (rc != MBX_TIMEOUT) 8620 mempool_free(mboxq, phba->mbox_mem_pool); 8621 8622 /* 8623 * Set up HBA Event Queues (EQs) 8624 */ 8625 io_channel = phba->io_channel_irqs; 8626 8627 /* Set up HBA event queue */ 8628 if (io_channel && !phba->sli4_hba.hba_eq) { 8629 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8630 "3147 Fast-path EQs not allocated\n"); 8631 rc = -ENOMEM; 8632 goto out_error; 8633 } 8634 for (qidx = 0; qidx < io_channel; qidx++) { 8635 if (!phba->sli4_hba.hba_eq[qidx]) { 8636 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8637 "0522 Fast-path EQ (%d) not " 8638 "allocated\n", qidx); 8639 rc = -ENOMEM; 8640 goto out_destroy; 8641 } 8642 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx], 8643 phba->cfg_fcp_imax); 8644 if (rc) { 8645 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8646 "0523 Failed setup of fast-path EQ " 8647 "(%d), rc = 0x%x\n", qidx, 8648 (uint32_t)rc); 8649 goto out_destroy; 8650 } 8651 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8652 "2584 HBA EQ setup: queue[%d]-id=%d\n", 8653 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id); 8654 } 8655 8656 if (phba->cfg_nvme_io_channel) { 8657 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) { 8658 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8659 "6084 Fast-path NVME %s array not allocated\n", 8660 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ"); 8661 rc = -ENOMEM; 8662 goto out_destroy; 8663 } 8664 8665 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { 8666 rc = lpfc_create_wq_cq(phba, 8667 phba->sli4_hba.hba_eq[ 8668 qidx % io_channel], 8669 phba->sli4_hba.nvme_cq[qidx], 8670 phba->sli4_hba.nvme_wq[qidx], 8671 &phba->sli4_hba.nvme_cq_map[qidx], 8672 qidx, LPFC_NVME); 8673 if (rc) { 8674 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8675 "6123 Failed to setup fastpath " 8676 "NVME WQ/CQ (%d), rc = 0x%x\n", 8677 qidx, (uint32_t)rc); 8678 goto out_destroy; 8679 } 8680 } 8681 } 8682 8683 if (phba->cfg_fcp_io_channel) { 8684 /* Set up fast-path FCP Response Complete Queue */ 8685 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) { 8686 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8687 "3148 Fast-path FCP %s array not allocated\n", 8688 phba->sli4_hba.fcp_cq ? "WQ" : "CQ"); 8689 rc = -ENOMEM; 8690 goto out_destroy; 8691 } 8692 8693 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { 8694 rc = lpfc_create_wq_cq(phba, 8695 phba->sli4_hba.hba_eq[ 8696 qidx % io_channel], 8697 phba->sli4_hba.fcp_cq[qidx], 8698 phba->sli4_hba.fcp_wq[qidx], 8699 &phba->sli4_hba.fcp_cq_map[qidx], 8700 qidx, LPFC_FCP); 8701 if (rc) { 8702 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8703 "0535 Failed to setup fastpath " 8704 "FCP WQ/CQ (%d), rc = 0x%x\n", 8705 qidx, (uint32_t)rc); 8706 goto out_destroy; 8707 } 8708 } 8709 } 8710 8711 /* 8712 * Set up Slow Path Complete Queues (CQs) 8713 */ 8714 8715 /* Set up slow-path MBOX CQ/MQ */ 8716 8717 if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) { 8718 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8719 "0528 %s not allocated\n", 8720 phba->sli4_hba.mbx_cq ? 8721 "Mailbox WQ" : "Mailbox CQ"); 8722 rc = -ENOMEM; 8723 goto out_destroy; 8724 } 8725 8726 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8727 phba->sli4_hba.mbx_cq, 8728 phba->sli4_hba.mbx_wq, 8729 NULL, 0, LPFC_MBOX); 8730 if (rc) { 8731 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8732 "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n", 8733 (uint32_t)rc); 8734 goto out_destroy; 8735 } 8736 if (phba->nvmet_support) { 8737 if (!phba->sli4_hba.nvmet_cqset) { 8738 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8739 "3165 Fast-path NVME CQ Set " 8740 "array not allocated\n"); 8741 rc = -ENOMEM; 8742 goto out_destroy; 8743 } 8744 if (phba->cfg_nvmet_mrq > 1) { 8745 rc = lpfc_cq_create_set(phba, 8746 phba->sli4_hba.nvmet_cqset, 8747 phba->sli4_hba.hba_eq, 8748 LPFC_WCQ, LPFC_NVMET); 8749 if (rc) { 8750 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8751 "3164 Failed setup of NVME CQ " 8752 "Set, rc = 0x%x\n", 8753 (uint32_t)rc); 8754 goto out_destroy; 8755 } 8756 } else { 8757 /* Set up NVMET Receive Complete Queue */ 8758 rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0], 8759 phba->sli4_hba.hba_eq[0], 8760 LPFC_WCQ, LPFC_NVMET); 8761 if (rc) { 8762 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8763 "6089 Failed setup NVMET CQ: " 8764 "rc = 0x%x\n", (uint32_t)rc); 8765 goto out_destroy; 8766 } 8767 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8768 "6090 NVMET CQ setup: cq-id=%d, " 8769 "parent eq-id=%d\n", 8770 phba->sli4_hba.nvmet_cqset[0]->queue_id, 8771 phba->sli4_hba.hba_eq[0]->queue_id); 8772 } 8773 } 8774 8775 /* Set up slow-path ELS WQ/CQ */ 8776 if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) { 8777 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8778 "0530 ELS %s not allocated\n", 8779 phba->sli4_hba.els_cq ? "WQ" : "CQ"); 8780 rc = -ENOMEM; 8781 goto out_destroy; 8782 } 8783 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8784 phba->sli4_hba.els_cq, 8785 phba->sli4_hba.els_wq, 8786 NULL, 0, LPFC_ELS); 8787 if (rc) { 8788 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8789 "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n", 8790 (uint32_t)rc); 8791 goto out_destroy; 8792 } 8793 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8794 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 8795 phba->sli4_hba.els_wq->queue_id, 8796 phba->sli4_hba.els_cq->queue_id); 8797 8798 if (phba->cfg_nvme_io_channel) { 8799 /* Set up NVME LS Complete Queue */ 8800 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) { 8801 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8802 "6091 LS %s not allocated\n", 8803 phba->sli4_hba.nvmels_cq ? "WQ" : "CQ"); 8804 rc = -ENOMEM; 8805 goto out_destroy; 8806 } 8807 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8808 phba->sli4_hba.nvmels_cq, 8809 phba->sli4_hba.nvmels_wq, 8810 NULL, 0, LPFC_NVME_LS); 8811 if (rc) { 8812 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8813 "0529 Failed setup of NVVME LS WQ/CQ: " 8814 "rc = 0x%x\n", (uint32_t)rc); 8815 goto out_destroy; 8816 } 8817 8818 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8819 "6096 ELS WQ setup: wq-id=%d, " 8820 "parent cq-id=%d\n", 8821 phba->sli4_hba.nvmels_wq->queue_id, 8822 phba->sli4_hba.nvmels_cq->queue_id); 8823 } 8824 8825 /* 8826 * Create NVMET Receive Queue (RQ) 8827 */ 8828 if (phba->nvmet_support) { 8829 if ((!phba->sli4_hba.nvmet_cqset) || 8830 (!phba->sli4_hba.nvmet_mrq_hdr) || 8831 (!phba->sli4_hba.nvmet_mrq_data)) { 8832 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8833 "6130 MRQ CQ Queues not " 8834 "allocated\n"); 8835 rc = -ENOMEM; 8836 goto out_destroy; 8837 } 8838 if (phba->cfg_nvmet_mrq > 1) { 8839 rc = lpfc_mrq_create(phba, 8840 phba->sli4_hba.nvmet_mrq_hdr, 8841 phba->sli4_hba.nvmet_mrq_data, 8842 phba->sli4_hba.nvmet_cqset, 8843 LPFC_NVMET); 8844 if (rc) { 8845 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8846 "6098 Failed setup of NVMET " 8847 "MRQ: rc = 0x%x\n", 8848 (uint32_t)rc); 8849 goto out_destroy; 8850 } 8851 8852 } else { 8853 rc = lpfc_rq_create(phba, 8854 phba->sli4_hba.nvmet_mrq_hdr[0], 8855 phba->sli4_hba.nvmet_mrq_data[0], 8856 phba->sli4_hba.nvmet_cqset[0], 8857 LPFC_NVMET); 8858 if (rc) { 8859 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8860 "6057 Failed setup of NVMET " 8861 "Receive Queue: rc = 0x%x\n", 8862 (uint32_t)rc); 8863 goto out_destroy; 8864 } 8865 8866 lpfc_printf_log( 8867 phba, KERN_INFO, LOG_INIT, 8868 "6099 NVMET RQ setup: hdr-rq-id=%d, " 8869 "dat-rq-id=%d parent cq-id=%d\n", 8870 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id, 8871 phba->sli4_hba.nvmet_mrq_data[0]->queue_id, 8872 phba->sli4_hba.nvmet_cqset[0]->queue_id); 8873 8874 } 8875 } 8876 8877 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 8878 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8879 "0540 Receive Queue not allocated\n"); 8880 rc = -ENOMEM; 8881 goto out_destroy; 8882 } 8883 8884 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 8885 phba->sli4_hba.els_cq, LPFC_USOL); 8886 if (rc) { 8887 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8888 "0541 Failed setup of Receive Queue: " 8889 "rc = 0x%x\n", (uint32_t)rc); 8890 goto out_destroy; 8891 } 8892 8893 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8894 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 8895 "parent cq-id=%d\n", 8896 phba->sli4_hba.hdr_rq->queue_id, 8897 phba->sli4_hba.dat_rq->queue_id, 8898 phba->sli4_hba.els_cq->queue_id); 8899 8900 if (phba->cfg_fof) { 8901 rc = lpfc_fof_queue_setup(phba); 8902 if (rc) { 8903 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8904 "0549 Failed setup of FOF Queues: " 8905 "rc = 0x%x\n", rc); 8906 goto out_destroy; 8907 } 8908 } 8909 8910 for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT) 8911 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT, 8912 phba->cfg_fcp_imax); 8913 8914 return 0; 8915 8916 out_destroy: 8917 lpfc_sli4_queue_unset(phba); 8918 out_error: 8919 return rc; 8920 } 8921 8922 /** 8923 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 8924 * @phba: pointer to lpfc hba data structure. 8925 * 8926 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 8927 * operation. 8928 * 8929 * Return codes 8930 * 0 - successful 8931 * -ENOMEM - No available memory 8932 * -EIO - The mailbox failed to complete successfully. 8933 **/ 8934 void 8935 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 8936 { 8937 int qidx; 8938 8939 /* Unset the queues created for Flash Optimized Fabric operations */ 8940 if (phba->cfg_fof) 8941 lpfc_fof_queue_destroy(phba); 8942 8943 /* Unset mailbox command work queue */ 8944 if (phba->sli4_hba.mbx_wq) 8945 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 8946 8947 /* Unset NVME LS work queue */ 8948 if (phba->sli4_hba.nvmels_wq) 8949 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq); 8950 8951 /* Unset ELS work queue */ 8952 if (phba->sli4_hba.els_wq) 8953 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 8954 8955 /* Unset unsolicited receive queue */ 8956 if (phba->sli4_hba.hdr_rq) 8957 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, 8958 phba->sli4_hba.dat_rq); 8959 8960 /* Unset FCP work queue */ 8961 if (phba->sli4_hba.fcp_wq) 8962 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) 8963 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]); 8964 8965 /* Unset NVME work queue */ 8966 if (phba->sli4_hba.nvme_wq) { 8967 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) 8968 lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]); 8969 } 8970 8971 /* Unset mailbox command complete queue */ 8972 if (phba->sli4_hba.mbx_cq) 8973 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 8974 8975 /* Unset ELS complete queue */ 8976 if (phba->sli4_hba.els_cq) 8977 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 8978 8979 /* Unset NVME LS complete queue */ 8980 if (phba->sli4_hba.nvmels_cq) 8981 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq); 8982 8983 /* Unset NVME response complete queue */ 8984 if (phba->sli4_hba.nvme_cq) 8985 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) 8986 lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]); 8987 8988 /* Unset NVMET MRQ queue */ 8989 if (phba->sli4_hba.nvmet_mrq_hdr) { 8990 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 8991 lpfc_rq_destroy(phba, 8992 phba->sli4_hba.nvmet_mrq_hdr[qidx], 8993 phba->sli4_hba.nvmet_mrq_data[qidx]); 8994 } 8995 8996 /* Unset NVMET CQ Set complete queue */ 8997 if (phba->sli4_hba.nvmet_cqset) { 8998 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 8999 lpfc_cq_destroy(phba, 9000 phba->sli4_hba.nvmet_cqset[qidx]); 9001 } 9002 9003 /* Unset FCP response complete queue */ 9004 if (phba->sli4_hba.fcp_cq) 9005 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) 9006 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]); 9007 9008 /* Unset fast-path event queue */ 9009 if (phba->sli4_hba.hba_eq) 9010 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) 9011 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]); 9012 } 9013 9014 /** 9015 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 9016 * @phba: pointer to lpfc hba data structure. 9017 * 9018 * This routine is invoked to allocate and set up a pool of completion queue 9019 * events. The body of the completion queue event is a completion queue entry 9020 * CQE. For now, this pool is used for the interrupt service routine to queue 9021 * the following HBA completion queue events for the worker thread to process: 9022 * - Mailbox asynchronous events 9023 * - Receive queue completion unsolicited events 9024 * Later, this can be used for all the slow-path events. 9025 * 9026 * Return codes 9027 * 0 - successful 9028 * -ENOMEM - No available memory 9029 **/ 9030 static int 9031 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 9032 { 9033 struct lpfc_cq_event *cq_event; 9034 int i; 9035 9036 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 9037 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 9038 if (!cq_event) 9039 goto out_pool_create_fail; 9040 list_add_tail(&cq_event->list, 9041 &phba->sli4_hba.sp_cqe_event_pool); 9042 } 9043 return 0; 9044 9045 out_pool_create_fail: 9046 lpfc_sli4_cq_event_pool_destroy(phba); 9047 return -ENOMEM; 9048 } 9049 9050 /** 9051 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 9052 * @phba: pointer to lpfc hba data structure. 9053 * 9054 * This routine is invoked to free the pool of completion queue events at 9055 * driver unload time. Note that, it is the responsibility of the driver 9056 * cleanup routine to free all the outstanding completion-queue events 9057 * allocated from this pool back into the pool before invoking this routine 9058 * to destroy the pool. 9059 **/ 9060 static void 9061 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 9062 { 9063 struct lpfc_cq_event *cq_event, *next_cq_event; 9064 9065 list_for_each_entry_safe(cq_event, next_cq_event, 9066 &phba->sli4_hba.sp_cqe_event_pool, list) { 9067 list_del(&cq_event->list); 9068 kfree(cq_event); 9069 } 9070 } 9071 9072 /** 9073 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 9074 * @phba: pointer to lpfc hba data structure. 9075 * 9076 * This routine is the lock free version of the API invoked to allocate a 9077 * completion-queue event from the free pool. 9078 * 9079 * Return: Pointer to the newly allocated completion-queue event if successful 9080 * NULL otherwise. 9081 **/ 9082 struct lpfc_cq_event * 9083 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 9084 { 9085 struct lpfc_cq_event *cq_event = NULL; 9086 9087 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 9088 struct lpfc_cq_event, list); 9089 return cq_event; 9090 } 9091 9092 /** 9093 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 9094 * @phba: pointer to lpfc hba data structure. 9095 * 9096 * This routine is the lock version of the API invoked to allocate a 9097 * completion-queue event from the free pool. 9098 * 9099 * Return: Pointer to the newly allocated completion-queue event if successful 9100 * NULL otherwise. 9101 **/ 9102 struct lpfc_cq_event * 9103 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 9104 { 9105 struct lpfc_cq_event *cq_event; 9106 unsigned long iflags; 9107 9108 spin_lock_irqsave(&phba->hbalock, iflags); 9109 cq_event = __lpfc_sli4_cq_event_alloc(phba); 9110 spin_unlock_irqrestore(&phba->hbalock, iflags); 9111 return cq_event; 9112 } 9113 9114 /** 9115 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 9116 * @phba: pointer to lpfc hba data structure. 9117 * @cq_event: pointer to the completion queue event to be freed. 9118 * 9119 * This routine is the lock free version of the API invoked to release a 9120 * completion-queue event back into the free pool. 9121 **/ 9122 void 9123 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 9124 struct lpfc_cq_event *cq_event) 9125 { 9126 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 9127 } 9128 9129 /** 9130 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 9131 * @phba: pointer to lpfc hba data structure. 9132 * @cq_event: pointer to the completion queue event to be freed. 9133 * 9134 * This routine is the lock version of the API invoked to release a 9135 * completion-queue event back into the free pool. 9136 **/ 9137 void 9138 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 9139 struct lpfc_cq_event *cq_event) 9140 { 9141 unsigned long iflags; 9142 spin_lock_irqsave(&phba->hbalock, iflags); 9143 __lpfc_sli4_cq_event_release(phba, cq_event); 9144 spin_unlock_irqrestore(&phba->hbalock, iflags); 9145 } 9146 9147 /** 9148 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 9149 * @phba: pointer to lpfc hba data structure. 9150 * 9151 * This routine is to free all the pending completion-queue events to the 9152 * back into the free pool for device reset. 9153 **/ 9154 static void 9155 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 9156 { 9157 LIST_HEAD(cqelist); 9158 struct lpfc_cq_event *cqe; 9159 unsigned long iflags; 9160 9161 /* Retrieve all the pending WCQEs from pending WCQE lists */ 9162 spin_lock_irqsave(&phba->hbalock, iflags); 9163 /* Pending FCP XRI abort events */ 9164 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 9165 &cqelist); 9166 /* Pending ELS XRI abort events */ 9167 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 9168 &cqelist); 9169 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 9170 /* Pending NVME XRI abort events */ 9171 list_splice_init(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue, 9172 &cqelist); 9173 } 9174 /* Pending asynnc events */ 9175 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 9176 &cqelist); 9177 spin_unlock_irqrestore(&phba->hbalock, iflags); 9178 9179 while (!list_empty(&cqelist)) { 9180 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 9181 lpfc_sli4_cq_event_release(phba, cqe); 9182 } 9183 } 9184 9185 /** 9186 * lpfc_pci_function_reset - Reset pci function. 9187 * @phba: pointer to lpfc hba data structure. 9188 * 9189 * This routine is invoked to request a PCI function reset. It will destroys 9190 * all resources assigned to the PCI function which originates this request. 9191 * 9192 * Return codes 9193 * 0 - successful 9194 * -ENOMEM - No available memory 9195 * -EIO - The mailbox failed to complete successfully. 9196 **/ 9197 int 9198 lpfc_pci_function_reset(struct lpfc_hba *phba) 9199 { 9200 LPFC_MBOXQ_t *mboxq; 9201 uint32_t rc = 0, if_type; 9202 uint32_t shdr_status, shdr_add_status; 9203 uint32_t rdy_chk; 9204 uint32_t port_reset = 0; 9205 union lpfc_sli4_cfg_shdr *shdr; 9206 struct lpfc_register reg_data; 9207 uint16_t devid; 9208 9209 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9210 switch (if_type) { 9211 case LPFC_SLI_INTF_IF_TYPE_0: 9212 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 9213 GFP_KERNEL); 9214 if (!mboxq) { 9215 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9216 "0494 Unable to allocate memory for " 9217 "issuing SLI_FUNCTION_RESET mailbox " 9218 "command\n"); 9219 return -ENOMEM; 9220 } 9221 9222 /* Setup PCI function reset mailbox-ioctl command */ 9223 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 9224 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 9225 LPFC_SLI4_MBX_EMBED); 9226 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9227 shdr = (union lpfc_sli4_cfg_shdr *) 9228 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 9229 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 9230 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 9231 &shdr->response); 9232 if (rc != MBX_TIMEOUT) 9233 mempool_free(mboxq, phba->mbox_mem_pool); 9234 if (shdr_status || shdr_add_status || rc) { 9235 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9236 "0495 SLI_FUNCTION_RESET mailbox " 9237 "failed with status x%x add_status x%x," 9238 " mbx status x%x\n", 9239 shdr_status, shdr_add_status, rc); 9240 rc = -ENXIO; 9241 } 9242 break; 9243 case LPFC_SLI_INTF_IF_TYPE_2: 9244 wait: 9245 /* 9246 * Poll the Port Status Register and wait for RDY for 9247 * up to 30 seconds. If the port doesn't respond, treat 9248 * it as an error. 9249 */ 9250 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) { 9251 if (lpfc_readl(phba->sli4_hba.u.if_type2. 9252 STATUSregaddr, ®_data.word0)) { 9253 rc = -ENODEV; 9254 goto out; 9255 } 9256 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 9257 break; 9258 msleep(20); 9259 } 9260 9261 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) { 9262 phba->work_status[0] = readl( 9263 phba->sli4_hba.u.if_type2.ERR1regaddr); 9264 phba->work_status[1] = readl( 9265 phba->sli4_hba.u.if_type2.ERR2regaddr); 9266 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9267 "2890 Port not ready, port status reg " 9268 "0x%x error 1=0x%x, error 2=0x%x\n", 9269 reg_data.word0, 9270 phba->work_status[0], 9271 phba->work_status[1]); 9272 rc = -ENODEV; 9273 goto out; 9274 } 9275 9276 if (!port_reset) { 9277 /* 9278 * Reset the port now 9279 */ 9280 reg_data.word0 = 0; 9281 bf_set(lpfc_sliport_ctrl_end, ®_data, 9282 LPFC_SLIPORT_LITTLE_ENDIAN); 9283 bf_set(lpfc_sliport_ctrl_ip, ®_data, 9284 LPFC_SLIPORT_INIT_PORT); 9285 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 9286 CTRLregaddr); 9287 /* flush */ 9288 pci_read_config_word(phba->pcidev, 9289 PCI_DEVICE_ID, &devid); 9290 9291 port_reset = 1; 9292 msleep(20); 9293 goto wait; 9294 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) { 9295 rc = -ENODEV; 9296 goto out; 9297 } 9298 break; 9299 9300 case LPFC_SLI_INTF_IF_TYPE_1: 9301 default: 9302 break; 9303 } 9304 9305 out: 9306 /* Catch the not-ready port failure after a port reset. */ 9307 if (rc) { 9308 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9309 "3317 HBA not functional: IP Reset Failed " 9310 "try: echo fw_reset > board_mode\n"); 9311 rc = -ENODEV; 9312 } 9313 9314 return rc; 9315 } 9316 9317 /** 9318 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 9319 * @phba: pointer to lpfc hba data structure. 9320 * 9321 * This routine is invoked to set up the PCI device memory space for device 9322 * with SLI-4 interface spec. 9323 * 9324 * Return codes 9325 * 0 - successful 9326 * other values - error 9327 **/ 9328 static int 9329 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 9330 { 9331 struct pci_dev *pdev; 9332 unsigned long bar0map_len, bar1map_len, bar2map_len; 9333 int error = -ENODEV; 9334 uint32_t if_type; 9335 9336 /* Obtain PCI device reference */ 9337 if (!phba->pcidev) 9338 return error; 9339 else 9340 pdev = phba->pcidev; 9341 9342 /* Set the device DMA mask size */ 9343 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 9344 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 9345 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 9346 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 9347 return error; 9348 } 9349 } 9350 9351 /* 9352 * The BARs and register set definitions and offset locations are 9353 * dependent on the if_type. 9354 */ 9355 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 9356 &phba->sli4_hba.sli_intf.word0)) { 9357 return error; 9358 } 9359 9360 /* There is no SLI3 failback for SLI4 devices. */ 9361 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 9362 LPFC_SLI_INTF_VALID) { 9363 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9364 "2894 SLI_INTF reg contents invalid " 9365 "sli_intf reg 0x%x\n", 9366 phba->sli4_hba.sli_intf.word0); 9367 return error; 9368 } 9369 9370 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9371 /* 9372 * Get the bus address of SLI4 device Bar regions and the 9373 * number of bytes required by each mapping. The mapping of the 9374 * particular PCI BARs regions is dependent on the type of 9375 * SLI4 device. 9376 */ 9377 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) { 9378 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0); 9379 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0); 9380 9381 /* 9382 * Map SLI4 PCI Config Space Register base to a kernel virtual 9383 * addr 9384 */ 9385 phba->sli4_hba.conf_regs_memmap_p = 9386 ioremap(phba->pci_bar0_map, bar0map_len); 9387 if (!phba->sli4_hba.conf_regs_memmap_p) { 9388 dev_printk(KERN_ERR, &pdev->dev, 9389 "ioremap failed for SLI4 PCI config " 9390 "registers.\n"); 9391 goto out; 9392 } 9393 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p; 9394 /* Set up BAR0 PCI config space register memory map */ 9395 lpfc_sli4_bar0_register_memmap(phba, if_type); 9396 } else { 9397 phba->pci_bar0_map = pci_resource_start(pdev, 1); 9398 bar0map_len = pci_resource_len(pdev, 1); 9399 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 9400 dev_printk(KERN_ERR, &pdev->dev, 9401 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 9402 goto out; 9403 } 9404 phba->sli4_hba.conf_regs_memmap_p = 9405 ioremap(phba->pci_bar0_map, bar0map_len); 9406 if (!phba->sli4_hba.conf_regs_memmap_p) { 9407 dev_printk(KERN_ERR, &pdev->dev, 9408 "ioremap failed for SLI4 PCI config " 9409 "registers.\n"); 9410 goto out; 9411 } 9412 lpfc_sli4_bar0_register_memmap(phba, if_type); 9413 } 9414 9415 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 9416 (pci_resource_start(pdev, PCI_64BIT_BAR2))) { 9417 /* 9418 * Map SLI4 if type 0 HBA Control Register base to a kernel 9419 * virtual address and setup the registers. 9420 */ 9421 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2); 9422 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2); 9423 phba->sli4_hba.ctrl_regs_memmap_p = 9424 ioremap(phba->pci_bar1_map, bar1map_len); 9425 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 9426 dev_printk(KERN_ERR, &pdev->dev, 9427 "ioremap failed for SLI4 HBA control registers.\n"); 9428 goto out_iounmap_conf; 9429 } 9430 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p; 9431 lpfc_sli4_bar1_register_memmap(phba); 9432 } 9433 9434 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 9435 (pci_resource_start(pdev, PCI_64BIT_BAR4))) { 9436 /* 9437 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 9438 * virtual address and setup the registers. 9439 */ 9440 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4); 9441 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4); 9442 phba->sli4_hba.drbl_regs_memmap_p = 9443 ioremap(phba->pci_bar2_map, bar2map_len); 9444 if (!phba->sli4_hba.drbl_regs_memmap_p) { 9445 dev_printk(KERN_ERR, &pdev->dev, 9446 "ioremap failed for SLI4 HBA doorbell registers.\n"); 9447 goto out_iounmap_ctrl; 9448 } 9449 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p; 9450 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 9451 if (error) 9452 goto out_iounmap_all; 9453 } 9454 9455 return 0; 9456 9457 out_iounmap_all: 9458 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9459 out_iounmap_ctrl: 9460 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 9461 out_iounmap_conf: 9462 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9463 out: 9464 return error; 9465 } 9466 9467 /** 9468 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 9469 * @phba: pointer to lpfc hba data structure. 9470 * 9471 * This routine is invoked to unset the PCI device memory space for device 9472 * with SLI-4 interface spec. 9473 **/ 9474 static void 9475 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 9476 { 9477 uint32_t if_type; 9478 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9479 9480 switch (if_type) { 9481 case LPFC_SLI_INTF_IF_TYPE_0: 9482 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9483 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 9484 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9485 break; 9486 case LPFC_SLI_INTF_IF_TYPE_2: 9487 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9488 break; 9489 case LPFC_SLI_INTF_IF_TYPE_1: 9490 default: 9491 dev_printk(KERN_ERR, &phba->pcidev->dev, 9492 "FATAL - unsupported SLI4 interface type - %d\n", 9493 if_type); 9494 break; 9495 } 9496 } 9497 9498 /** 9499 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 9500 * @phba: pointer to lpfc hba data structure. 9501 * 9502 * This routine is invoked to enable the MSI-X interrupt vectors to device 9503 * with SLI-3 interface specs. 9504 * 9505 * Return codes 9506 * 0 - successful 9507 * other values - error 9508 **/ 9509 static int 9510 lpfc_sli_enable_msix(struct lpfc_hba *phba) 9511 { 9512 int rc; 9513 LPFC_MBOXQ_t *pmb; 9514 9515 /* Set up MSI-X multi-message vectors */ 9516 rc = pci_alloc_irq_vectors(phba->pcidev, 9517 LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX); 9518 if (rc < 0) { 9519 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9520 "0420 PCI enable MSI-X failed (%d)\n", rc); 9521 goto vec_fail_out; 9522 } 9523 9524 /* 9525 * Assign MSI-X vectors to interrupt handlers 9526 */ 9527 9528 /* vector-0 is associated to slow-path handler */ 9529 rc = request_irq(pci_irq_vector(phba->pcidev, 0), 9530 &lpfc_sli_sp_intr_handler, 0, 9531 LPFC_SP_DRIVER_HANDLER_NAME, phba); 9532 if (rc) { 9533 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9534 "0421 MSI-X slow-path request_irq failed " 9535 "(%d)\n", rc); 9536 goto msi_fail_out; 9537 } 9538 9539 /* vector-1 is associated to fast-path handler */ 9540 rc = request_irq(pci_irq_vector(phba->pcidev, 1), 9541 &lpfc_sli_fp_intr_handler, 0, 9542 LPFC_FP_DRIVER_HANDLER_NAME, phba); 9543 9544 if (rc) { 9545 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9546 "0429 MSI-X fast-path request_irq failed " 9547 "(%d)\n", rc); 9548 goto irq_fail_out; 9549 } 9550 9551 /* 9552 * Configure HBA MSI-X attention conditions to messages 9553 */ 9554 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 9555 9556 if (!pmb) { 9557 rc = -ENOMEM; 9558 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9559 "0474 Unable to allocate memory for issuing " 9560 "MBOX_CONFIG_MSI command\n"); 9561 goto mem_fail_out; 9562 } 9563 rc = lpfc_config_msi(phba, pmb); 9564 if (rc) 9565 goto mbx_fail_out; 9566 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 9567 if (rc != MBX_SUCCESS) { 9568 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 9569 "0351 Config MSI mailbox command failed, " 9570 "mbxCmd x%x, mbxStatus x%x\n", 9571 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 9572 goto mbx_fail_out; 9573 } 9574 9575 /* Free memory allocated for mailbox command */ 9576 mempool_free(pmb, phba->mbox_mem_pool); 9577 return rc; 9578 9579 mbx_fail_out: 9580 /* Free memory allocated for mailbox command */ 9581 mempool_free(pmb, phba->mbox_mem_pool); 9582 9583 mem_fail_out: 9584 /* free the irq already requested */ 9585 free_irq(pci_irq_vector(phba->pcidev, 1), phba); 9586 9587 irq_fail_out: 9588 /* free the irq already requested */ 9589 free_irq(pci_irq_vector(phba->pcidev, 0), phba); 9590 9591 msi_fail_out: 9592 /* Unconfigure MSI-X capability structure */ 9593 pci_free_irq_vectors(phba->pcidev); 9594 9595 vec_fail_out: 9596 return rc; 9597 } 9598 9599 /** 9600 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 9601 * @phba: pointer to lpfc hba data structure. 9602 * 9603 * This routine is invoked to enable the MSI interrupt mode to device with 9604 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 9605 * enable the MSI vector. The device driver is responsible for calling the 9606 * request_irq() to register MSI vector with a interrupt the handler, which 9607 * is done in this function. 9608 * 9609 * Return codes 9610 * 0 - successful 9611 * other values - error 9612 */ 9613 static int 9614 lpfc_sli_enable_msi(struct lpfc_hba *phba) 9615 { 9616 int rc; 9617 9618 rc = pci_enable_msi(phba->pcidev); 9619 if (!rc) 9620 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9621 "0462 PCI enable MSI mode success.\n"); 9622 else { 9623 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9624 "0471 PCI enable MSI mode failed (%d)\n", rc); 9625 return rc; 9626 } 9627 9628 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 9629 0, LPFC_DRIVER_NAME, phba); 9630 if (rc) { 9631 pci_disable_msi(phba->pcidev); 9632 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9633 "0478 MSI request_irq failed (%d)\n", rc); 9634 } 9635 return rc; 9636 } 9637 9638 /** 9639 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 9640 * @phba: pointer to lpfc hba data structure. 9641 * 9642 * This routine is invoked to enable device interrupt and associate driver's 9643 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 9644 * spec. Depends on the interrupt mode configured to the driver, the driver 9645 * will try to fallback from the configured interrupt mode to an interrupt 9646 * mode which is supported by the platform, kernel, and device in the order 9647 * of: 9648 * MSI-X -> MSI -> IRQ. 9649 * 9650 * Return codes 9651 * 0 - successful 9652 * other values - error 9653 **/ 9654 static uint32_t 9655 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 9656 { 9657 uint32_t intr_mode = LPFC_INTR_ERROR; 9658 int retval; 9659 9660 if (cfg_mode == 2) { 9661 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 9662 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 9663 if (!retval) { 9664 /* Now, try to enable MSI-X interrupt mode */ 9665 retval = lpfc_sli_enable_msix(phba); 9666 if (!retval) { 9667 /* Indicate initialization to MSI-X mode */ 9668 phba->intr_type = MSIX; 9669 intr_mode = 2; 9670 } 9671 } 9672 } 9673 9674 /* Fallback to MSI if MSI-X initialization failed */ 9675 if (cfg_mode >= 1 && phba->intr_type == NONE) { 9676 retval = lpfc_sli_enable_msi(phba); 9677 if (!retval) { 9678 /* Indicate initialization to MSI mode */ 9679 phba->intr_type = MSI; 9680 intr_mode = 1; 9681 } 9682 } 9683 9684 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 9685 if (phba->intr_type == NONE) { 9686 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 9687 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 9688 if (!retval) { 9689 /* Indicate initialization to INTx mode */ 9690 phba->intr_type = INTx; 9691 intr_mode = 0; 9692 } 9693 } 9694 return intr_mode; 9695 } 9696 9697 /** 9698 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 9699 * @phba: pointer to lpfc hba data structure. 9700 * 9701 * This routine is invoked to disable device interrupt and disassociate the 9702 * driver's interrupt handler(s) from interrupt vector(s) to device with 9703 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 9704 * release the interrupt vector(s) for the message signaled interrupt. 9705 **/ 9706 static void 9707 lpfc_sli_disable_intr(struct lpfc_hba *phba) 9708 { 9709 int nr_irqs, i; 9710 9711 if (phba->intr_type == MSIX) 9712 nr_irqs = LPFC_MSIX_VECTORS; 9713 else 9714 nr_irqs = 1; 9715 9716 for (i = 0; i < nr_irqs; i++) 9717 free_irq(pci_irq_vector(phba->pcidev, i), phba); 9718 pci_free_irq_vectors(phba->pcidev); 9719 9720 /* Reset interrupt management states */ 9721 phba->intr_type = NONE; 9722 phba->sli.slistat.sli_intr = 0; 9723 } 9724 9725 /** 9726 * lpfc_cpu_affinity_check - Check vector CPU affinity mappings 9727 * @phba: pointer to lpfc hba data structure. 9728 * @vectors: number of msix vectors allocated. 9729 * 9730 * The routine will figure out the CPU affinity assignment for every 9731 * MSI-X vector allocated for the HBA. The hba_eq_hdl will be updated 9732 * with a pointer to the CPU mask that defines ALL the CPUs this vector 9733 * can be associated with. If the vector can be unquely associated with 9734 * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu. 9735 * In addition, the CPU to IO channel mapping will be calculated 9736 * and the phba->sli4_hba.cpu_map array will reflect this. 9737 */ 9738 static void 9739 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors) 9740 { 9741 struct lpfc_vector_map_info *cpup; 9742 int index = 0; 9743 int vec = 0; 9744 int cpu; 9745 #ifdef CONFIG_X86 9746 struct cpuinfo_x86 *cpuinfo; 9747 #endif 9748 9749 /* Init cpu_map array */ 9750 memset(phba->sli4_hba.cpu_map, 0xff, 9751 (sizeof(struct lpfc_vector_map_info) * 9752 phba->sli4_hba.num_present_cpu)); 9753 9754 /* Update CPU map with physical id and core id of each CPU */ 9755 cpup = phba->sli4_hba.cpu_map; 9756 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 9757 #ifdef CONFIG_X86 9758 cpuinfo = &cpu_data(cpu); 9759 cpup->phys_id = cpuinfo->phys_proc_id; 9760 cpup->core_id = cpuinfo->cpu_core_id; 9761 #else 9762 /* No distinction between CPUs for other platforms */ 9763 cpup->phys_id = 0; 9764 cpup->core_id = 0; 9765 #endif 9766 cpup->channel_id = index; /* For now round robin */ 9767 cpup->irq = pci_irq_vector(phba->pcidev, vec); 9768 vec++; 9769 if (vec >= vectors) 9770 vec = 0; 9771 index++; 9772 if (index >= phba->cfg_fcp_io_channel) 9773 index = 0; 9774 cpup++; 9775 } 9776 } 9777 9778 9779 /** 9780 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 9781 * @phba: pointer to lpfc hba data structure. 9782 * 9783 * This routine is invoked to enable the MSI-X interrupt vectors to device 9784 * with SLI-4 interface spec. 9785 * 9786 * Return codes 9787 * 0 - successful 9788 * other values - error 9789 **/ 9790 static int 9791 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 9792 { 9793 int vectors, rc, index; 9794 char *name; 9795 9796 /* Set up MSI-X multi-message vectors */ 9797 vectors = phba->io_channel_irqs; 9798 if (phba->cfg_fof) 9799 vectors++; 9800 9801 rc = pci_alloc_irq_vectors(phba->pcidev, 9802 (phba->nvmet_support) ? 1 : 2, 9803 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY); 9804 if (rc < 0) { 9805 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9806 "0484 PCI enable MSI-X failed (%d)\n", rc); 9807 goto vec_fail_out; 9808 } 9809 vectors = rc; 9810 9811 /* Assign MSI-X vectors to interrupt handlers */ 9812 for (index = 0; index < vectors; index++) { 9813 name = phba->sli4_hba.hba_eq_hdl[index].handler_name; 9814 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ); 9815 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ, 9816 LPFC_DRIVER_HANDLER_NAME"%d", index); 9817 9818 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9819 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9820 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1); 9821 if (phba->cfg_fof && (index == (vectors - 1))) 9822 rc = request_irq(pci_irq_vector(phba->pcidev, index), 9823 &lpfc_sli4_fof_intr_handler, 0, 9824 name, 9825 &phba->sli4_hba.hba_eq_hdl[index]); 9826 else 9827 rc = request_irq(pci_irq_vector(phba->pcidev, index), 9828 &lpfc_sli4_hba_intr_handler, 0, 9829 name, 9830 &phba->sli4_hba.hba_eq_hdl[index]); 9831 if (rc) { 9832 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9833 "0486 MSI-X fast-path (%d) " 9834 "request_irq failed (%d)\n", index, rc); 9835 goto cfg_fail_out; 9836 } 9837 } 9838 9839 if (phba->cfg_fof) 9840 vectors--; 9841 9842 if (vectors != phba->io_channel_irqs) { 9843 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9844 "3238 Reducing IO channels to match number of " 9845 "MSI-X vectors, requested %d got %d\n", 9846 phba->io_channel_irqs, vectors); 9847 if (phba->cfg_fcp_io_channel > vectors) 9848 phba->cfg_fcp_io_channel = vectors; 9849 if (phba->cfg_nvme_io_channel > vectors) 9850 phba->cfg_nvme_io_channel = vectors; 9851 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel) 9852 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 9853 else 9854 phba->io_channel_irqs = phba->cfg_nvme_io_channel; 9855 } 9856 lpfc_cpu_affinity_check(phba, vectors); 9857 9858 return rc; 9859 9860 cfg_fail_out: 9861 /* free the irq already requested */ 9862 for (--index; index >= 0; index--) 9863 free_irq(pci_irq_vector(phba->pcidev, index), 9864 &phba->sli4_hba.hba_eq_hdl[index]); 9865 9866 /* Unconfigure MSI-X capability structure */ 9867 pci_free_irq_vectors(phba->pcidev); 9868 9869 vec_fail_out: 9870 return rc; 9871 } 9872 9873 /** 9874 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 9875 * @phba: pointer to lpfc hba data structure. 9876 * 9877 * This routine is invoked to enable the MSI interrupt mode to device with 9878 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 9879 * to enable the MSI vector. The device driver is responsible for calling 9880 * the request_irq() to register MSI vector with a interrupt the handler, 9881 * which is done in this function. 9882 * 9883 * Return codes 9884 * 0 - successful 9885 * other values - error 9886 **/ 9887 static int 9888 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 9889 { 9890 int rc, index; 9891 9892 rc = pci_enable_msi(phba->pcidev); 9893 if (!rc) 9894 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9895 "0487 PCI enable MSI mode success.\n"); 9896 else { 9897 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9898 "0488 PCI enable MSI mode failed (%d)\n", rc); 9899 return rc; 9900 } 9901 9902 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 9903 0, LPFC_DRIVER_NAME, phba); 9904 if (rc) { 9905 pci_disable_msi(phba->pcidev); 9906 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9907 "0490 MSI request_irq failed (%d)\n", rc); 9908 return rc; 9909 } 9910 9911 for (index = 0; index < phba->io_channel_irqs; index++) { 9912 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9913 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9914 } 9915 9916 if (phba->cfg_fof) { 9917 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9918 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9919 } 9920 return 0; 9921 } 9922 9923 /** 9924 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 9925 * @phba: pointer to lpfc hba data structure. 9926 * 9927 * This routine is invoked to enable device interrupt and associate driver's 9928 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 9929 * interface spec. Depends on the interrupt mode configured to the driver, 9930 * the driver will try to fallback from the configured interrupt mode to an 9931 * interrupt mode which is supported by the platform, kernel, and device in 9932 * the order of: 9933 * MSI-X -> MSI -> IRQ. 9934 * 9935 * Return codes 9936 * 0 - successful 9937 * other values - error 9938 **/ 9939 static uint32_t 9940 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 9941 { 9942 uint32_t intr_mode = LPFC_INTR_ERROR; 9943 int retval, idx; 9944 9945 if (cfg_mode == 2) { 9946 /* Preparation before conf_msi mbox cmd */ 9947 retval = 0; 9948 if (!retval) { 9949 /* Now, try to enable MSI-X interrupt mode */ 9950 retval = lpfc_sli4_enable_msix(phba); 9951 if (!retval) { 9952 /* Indicate initialization to MSI-X mode */ 9953 phba->intr_type = MSIX; 9954 intr_mode = 2; 9955 } 9956 } 9957 } 9958 9959 /* Fallback to MSI if MSI-X initialization failed */ 9960 if (cfg_mode >= 1 && phba->intr_type == NONE) { 9961 retval = lpfc_sli4_enable_msi(phba); 9962 if (!retval) { 9963 /* Indicate initialization to MSI mode */ 9964 phba->intr_type = MSI; 9965 intr_mode = 1; 9966 } 9967 } 9968 9969 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 9970 if (phba->intr_type == NONE) { 9971 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 9972 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 9973 if (!retval) { 9974 struct lpfc_hba_eq_hdl *eqhdl; 9975 9976 /* Indicate initialization to INTx mode */ 9977 phba->intr_type = INTx; 9978 intr_mode = 0; 9979 9980 for (idx = 0; idx < phba->io_channel_irqs; idx++) { 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 if (phba->cfg_fof) { 9987 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; 9988 eqhdl->idx = idx; 9989 eqhdl->phba = phba; 9990 atomic_set(&eqhdl->hba_eq_in_use, 1); 9991 } 9992 } 9993 } 9994 return intr_mode; 9995 } 9996 9997 /** 9998 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 9999 * @phba: pointer to lpfc hba data structure. 10000 * 10001 * This routine is invoked to disable device interrupt and disassociate 10002 * the driver's interrupt handler(s) from interrupt vector(s) to device 10003 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 10004 * will release the interrupt vector(s) for the message signaled interrupt. 10005 **/ 10006 static void 10007 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 10008 { 10009 /* Disable the currently initialized interrupt mode */ 10010 if (phba->intr_type == MSIX) { 10011 int index; 10012 10013 /* Free up MSI-X multi-message vectors */ 10014 for (index = 0; index < phba->io_channel_irqs; index++) 10015 free_irq(pci_irq_vector(phba->pcidev, index), 10016 &phba->sli4_hba.hba_eq_hdl[index]); 10017 10018 if (phba->cfg_fof) 10019 free_irq(pci_irq_vector(phba->pcidev, index), 10020 &phba->sli4_hba.hba_eq_hdl[index]); 10021 } else { 10022 free_irq(phba->pcidev->irq, phba); 10023 } 10024 10025 pci_free_irq_vectors(phba->pcidev); 10026 10027 /* Reset interrupt management states */ 10028 phba->intr_type = NONE; 10029 phba->sli.slistat.sli_intr = 0; 10030 } 10031 10032 /** 10033 * lpfc_unset_hba - Unset SLI3 hba device initialization 10034 * @phba: pointer to lpfc hba data structure. 10035 * 10036 * This routine is invoked to unset the HBA device initialization steps to 10037 * a device with SLI-3 interface spec. 10038 **/ 10039 static void 10040 lpfc_unset_hba(struct lpfc_hba *phba) 10041 { 10042 struct lpfc_vport *vport = phba->pport; 10043 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 10044 10045 spin_lock_irq(shost->host_lock); 10046 vport->load_flag |= FC_UNLOADING; 10047 spin_unlock_irq(shost->host_lock); 10048 10049 kfree(phba->vpi_bmask); 10050 kfree(phba->vpi_ids); 10051 10052 lpfc_stop_hba_timers(phba); 10053 10054 phba->pport->work_port_events = 0; 10055 10056 lpfc_sli_hba_down(phba); 10057 10058 lpfc_sli_brdrestart(phba); 10059 10060 lpfc_sli_disable_intr(phba); 10061 10062 return; 10063 } 10064 10065 /** 10066 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 10067 * @phba: Pointer to HBA context object. 10068 * 10069 * This function is called in the SLI4 code path to wait for completion 10070 * of device's XRIs exchange busy. It will check the XRI exchange busy 10071 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 10072 * that, it will check the XRI exchange busy on outstanding FCP and ELS 10073 * I/Os every 30 seconds, log error message, and wait forever. Only when 10074 * all XRI exchange busy complete, the driver unload shall proceed with 10075 * invoking the function reset ioctl mailbox command to the CNA and the 10076 * the rest of the driver unload resource release. 10077 **/ 10078 static void 10079 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 10080 { 10081 int wait_time = 0; 10082 int nvme_xri_cmpl = 1; 10083 int nvmet_xri_cmpl = 1; 10084 int fcp_xri_cmpl = 1; 10085 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 10086 10087 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 10088 fcp_xri_cmpl = 10089 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 10090 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 10091 nvme_xri_cmpl = 10092 list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list); 10093 nvmet_xri_cmpl = 10094 list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 10095 } 10096 10097 while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl || 10098 !nvmet_xri_cmpl) { 10099 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 10100 if (!nvme_xri_cmpl) 10101 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10102 "6100 NVME XRI exchange busy " 10103 "wait time: %d seconds.\n", 10104 wait_time/1000); 10105 if (!fcp_xri_cmpl) 10106 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10107 "2877 FCP XRI exchange busy " 10108 "wait time: %d seconds.\n", 10109 wait_time/1000); 10110 if (!els_xri_cmpl) 10111 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10112 "2878 ELS XRI exchange busy " 10113 "wait time: %d seconds.\n", 10114 wait_time/1000); 10115 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 10116 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 10117 } else { 10118 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 10119 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 10120 } 10121 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 10122 nvme_xri_cmpl = list_empty( 10123 &phba->sli4_hba.lpfc_abts_nvme_buf_list); 10124 nvmet_xri_cmpl = list_empty( 10125 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 10126 } 10127 10128 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 10129 fcp_xri_cmpl = list_empty( 10130 &phba->sli4_hba.lpfc_abts_scsi_buf_list); 10131 10132 els_xri_cmpl = 10133 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 10134 10135 } 10136 } 10137 10138 /** 10139 * lpfc_sli4_hba_unset - Unset the fcoe hba 10140 * @phba: Pointer to HBA context object. 10141 * 10142 * This function is called in the SLI4 code path to reset the HBA's FCoE 10143 * function. The caller is not required to hold any lock. This routine 10144 * issues PCI function reset mailbox command to reset the FCoE function. 10145 * At the end of the function, it calls lpfc_hba_down_post function to 10146 * free any pending commands. 10147 **/ 10148 static void 10149 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 10150 { 10151 int wait_cnt = 0; 10152 LPFC_MBOXQ_t *mboxq; 10153 struct pci_dev *pdev = phba->pcidev; 10154 10155 lpfc_stop_hba_timers(phba); 10156 phba->sli4_hba.intr_enable = 0; 10157 10158 /* 10159 * Gracefully wait out the potential current outstanding asynchronous 10160 * mailbox command. 10161 */ 10162 10163 /* First, block any pending async mailbox command from posted */ 10164 spin_lock_irq(&phba->hbalock); 10165 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 10166 spin_unlock_irq(&phba->hbalock); 10167 /* Now, trying to wait it out if we can */ 10168 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 10169 msleep(10); 10170 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 10171 break; 10172 } 10173 /* Forcefully release the outstanding mailbox command if timed out */ 10174 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 10175 spin_lock_irq(&phba->hbalock); 10176 mboxq = phba->sli.mbox_active; 10177 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 10178 __lpfc_mbox_cmpl_put(phba, mboxq); 10179 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 10180 phba->sli.mbox_active = NULL; 10181 spin_unlock_irq(&phba->hbalock); 10182 } 10183 10184 /* Abort all iocbs associated with the hba */ 10185 lpfc_sli_hba_iocb_abort(phba); 10186 10187 /* Wait for completion of device XRI exchange busy */ 10188 lpfc_sli4_xri_exchange_busy_wait(phba); 10189 10190 /* Disable PCI subsystem interrupt */ 10191 lpfc_sli4_disable_intr(phba); 10192 10193 /* Disable SR-IOV if enabled */ 10194 if (phba->cfg_sriov_nr_virtfn) 10195 pci_disable_sriov(pdev); 10196 10197 /* Stop kthread signal shall trigger work_done one more time */ 10198 kthread_stop(phba->worker_thread); 10199 10200 /* Unset the queues shared with the hardware then release all 10201 * allocated resources. 10202 */ 10203 lpfc_sli4_queue_unset(phba); 10204 lpfc_sli4_queue_destroy(phba); 10205 10206 /* Reset SLI4 HBA FCoE function */ 10207 lpfc_pci_function_reset(phba); 10208 10209 /* Stop the SLI4 device port */ 10210 phba->pport->work_port_events = 0; 10211 } 10212 10213 /** 10214 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 10215 * @phba: Pointer to HBA context object. 10216 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 10217 * 10218 * This function is called in the SLI4 code path to read the port's 10219 * sli4 capabilities. 10220 * 10221 * This function may be be called from any context that can block-wait 10222 * for the completion. The expectation is that this routine is called 10223 * typically from probe_one or from the online routine. 10224 **/ 10225 int 10226 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 10227 { 10228 int rc; 10229 struct lpfc_mqe *mqe; 10230 struct lpfc_pc_sli4_params *sli4_params; 10231 uint32_t mbox_tmo; 10232 10233 rc = 0; 10234 mqe = &mboxq->u.mqe; 10235 10236 /* Read the port's SLI4 Parameters port capabilities */ 10237 lpfc_pc_sli4_params(mboxq); 10238 if (!phba->sli4_hba.intr_enable) 10239 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10240 else { 10241 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 10242 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 10243 } 10244 10245 if (unlikely(rc)) 10246 return 1; 10247 10248 sli4_params = &phba->sli4_hba.pc_sli4_params; 10249 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 10250 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 10251 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 10252 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 10253 &mqe->un.sli4_params); 10254 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 10255 &mqe->un.sli4_params); 10256 sli4_params->proto_types = mqe->un.sli4_params.word3; 10257 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 10258 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 10259 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 10260 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 10261 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 10262 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 10263 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 10264 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 10265 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 10266 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 10267 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 10268 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 10269 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 10270 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 10271 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 10272 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 10273 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 10274 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 10275 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 10276 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 10277 10278 /* Make sure that sge_supp_len can be handled by the driver */ 10279 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 10280 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 10281 10282 return rc; 10283 } 10284 10285 /** 10286 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 10287 * @phba: Pointer to HBA context object. 10288 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 10289 * 10290 * This function is called in the SLI4 code path to read the port's 10291 * sli4 capabilities. 10292 * 10293 * This function may be be called from any context that can block-wait 10294 * for the completion. The expectation is that this routine is called 10295 * typically from probe_one or from the online routine. 10296 **/ 10297 int 10298 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 10299 { 10300 int rc; 10301 struct lpfc_mqe *mqe = &mboxq->u.mqe; 10302 struct lpfc_pc_sli4_params *sli4_params; 10303 uint32_t mbox_tmo; 10304 int length; 10305 struct lpfc_sli4_parameters *mbx_sli4_parameters; 10306 10307 /* 10308 * By default, the driver assumes the SLI4 port requires RPI 10309 * header postings. The SLI4_PARAM response will correct this 10310 * assumption. 10311 */ 10312 phba->sli4_hba.rpi_hdrs_in_use = 1; 10313 10314 /* Read the port's SLI4 Config Parameters */ 10315 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 10316 sizeof(struct lpfc_sli4_cfg_mhdr)); 10317 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 10318 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 10319 length, LPFC_SLI4_MBX_EMBED); 10320 if (!phba->sli4_hba.intr_enable) 10321 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10322 else { 10323 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 10324 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 10325 } 10326 if (unlikely(rc)) 10327 return rc; 10328 sli4_params = &phba->sli4_hba.pc_sli4_params; 10329 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 10330 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 10331 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 10332 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 10333 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 10334 mbx_sli4_parameters); 10335 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 10336 mbx_sli4_parameters); 10337 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 10338 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 10339 else 10340 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 10341 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 10342 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 10343 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters); 10344 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 10345 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 10346 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 10347 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 10348 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters); 10349 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 10350 mbx_sli4_parameters); 10351 sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters); 10352 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 10353 mbx_sli4_parameters); 10354 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 10355 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 10356 phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) && 10357 bf_get(cfg_xib, mbx_sli4_parameters)); 10358 10359 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) || 10360 !phba->nvme_support) { 10361 phba->nvme_support = 0; 10362 phba->nvmet_support = 0; 10363 phba->cfg_nvmet_mrq = 0; 10364 phba->cfg_nvme_io_channel = 0; 10365 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 10366 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME, 10367 "6101 Disabling NVME support: " 10368 "Not supported by firmware: %d %d\n", 10369 bf_get(cfg_nvme, mbx_sli4_parameters), 10370 bf_get(cfg_xib, mbx_sli4_parameters)); 10371 10372 /* If firmware doesn't support NVME, just use SCSI support */ 10373 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 10374 return -ENODEV; 10375 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 10376 } 10377 10378 if (bf_get(cfg_xib, mbx_sli4_parameters) && phba->cfg_suppress_rsp) 10379 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP; 10380 10381 if (bf_get(cfg_eqdr, mbx_sli4_parameters)) 10382 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR; 10383 10384 /* Make sure that sge_supp_len can be handled by the driver */ 10385 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 10386 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 10387 10388 /* 10389 * Issue IOs with CDB embedded in WQE to minimized the number 10390 * of DMAs the firmware has to do. Setting this to 1 also forces 10391 * the driver to use 128 bytes WQEs for FCP IOs. 10392 */ 10393 if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters)) 10394 phba->fcp_embed_io = 1; 10395 else 10396 phba->fcp_embed_io = 0; 10397 10398 /* 10399 * Check if the SLI port supports MDS Diagnostics 10400 */ 10401 if (bf_get(cfg_mds_diags, mbx_sli4_parameters)) 10402 phba->mds_diags_support = 1; 10403 else 10404 phba->mds_diags_support = 0; 10405 return 0; 10406 } 10407 10408 /** 10409 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 10410 * @pdev: pointer to PCI device 10411 * @pid: pointer to PCI device identifier 10412 * 10413 * This routine is to be called to attach a device with SLI-3 interface spec 10414 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 10415 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 10416 * information of the device and driver to see if the driver state that it can 10417 * support this kind of device. If the match is successful, the driver core 10418 * invokes this routine. If this routine determines it can claim the HBA, it 10419 * does all the initialization that it needs to do to handle the HBA properly. 10420 * 10421 * Return code 10422 * 0 - driver can claim the device 10423 * negative value - driver can not claim the device 10424 **/ 10425 static int 10426 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 10427 { 10428 struct lpfc_hba *phba; 10429 struct lpfc_vport *vport = NULL; 10430 struct Scsi_Host *shost = NULL; 10431 int error; 10432 uint32_t cfg_mode, intr_mode; 10433 10434 /* Allocate memory for HBA structure */ 10435 phba = lpfc_hba_alloc(pdev); 10436 if (!phba) 10437 return -ENOMEM; 10438 10439 /* Perform generic PCI device enabling operation */ 10440 error = lpfc_enable_pci_dev(phba); 10441 if (error) 10442 goto out_free_phba; 10443 10444 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 10445 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 10446 if (error) 10447 goto out_disable_pci_dev; 10448 10449 /* Set up SLI-3 specific device PCI memory space */ 10450 error = lpfc_sli_pci_mem_setup(phba); 10451 if (error) { 10452 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10453 "1402 Failed to set up pci memory space.\n"); 10454 goto out_disable_pci_dev; 10455 } 10456 10457 /* Set up SLI-3 specific device driver resources */ 10458 error = lpfc_sli_driver_resource_setup(phba); 10459 if (error) { 10460 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10461 "1404 Failed to set up driver resource.\n"); 10462 goto out_unset_pci_mem_s3; 10463 } 10464 10465 /* Initialize and populate the iocb list per host */ 10466 10467 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 10468 if (error) { 10469 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10470 "1405 Failed to initialize iocb list.\n"); 10471 goto out_unset_driver_resource_s3; 10472 } 10473 10474 /* Set up common device driver resources */ 10475 error = lpfc_setup_driver_resource_phase2(phba); 10476 if (error) { 10477 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10478 "1406 Failed to set up driver resource.\n"); 10479 goto out_free_iocb_list; 10480 } 10481 10482 /* Get the default values for Model Name and Description */ 10483 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 10484 10485 /* Create SCSI host to the physical port */ 10486 error = lpfc_create_shost(phba); 10487 if (error) { 10488 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10489 "1407 Failed to create scsi host.\n"); 10490 goto out_unset_driver_resource; 10491 } 10492 10493 /* Configure sysfs attributes */ 10494 vport = phba->pport; 10495 error = lpfc_alloc_sysfs_attr(vport); 10496 if (error) { 10497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10498 "1476 Failed to allocate sysfs attr\n"); 10499 goto out_destroy_shost; 10500 } 10501 10502 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 10503 /* Now, trying to enable interrupt and bring up the device */ 10504 cfg_mode = phba->cfg_use_msi; 10505 while (true) { 10506 /* Put device to a known state before enabling interrupt */ 10507 lpfc_stop_port(phba); 10508 /* Configure and enable interrupt */ 10509 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 10510 if (intr_mode == LPFC_INTR_ERROR) { 10511 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10512 "0431 Failed to enable interrupt.\n"); 10513 error = -ENODEV; 10514 goto out_free_sysfs_attr; 10515 } 10516 /* SLI-3 HBA setup */ 10517 if (lpfc_sli_hba_setup(phba)) { 10518 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10519 "1477 Failed to set up hba\n"); 10520 error = -ENODEV; 10521 goto out_remove_device; 10522 } 10523 10524 /* Wait 50ms for the interrupts of previous mailbox commands */ 10525 msleep(50); 10526 /* Check active interrupts on message signaled interrupts */ 10527 if (intr_mode == 0 || 10528 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 10529 /* Log the current active interrupt mode */ 10530 phba->intr_mode = intr_mode; 10531 lpfc_log_intr_mode(phba, intr_mode); 10532 break; 10533 } else { 10534 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10535 "0447 Configure interrupt mode (%d) " 10536 "failed active interrupt test.\n", 10537 intr_mode); 10538 /* Disable the current interrupt mode */ 10539 lpfc_sli_disable_intr(phba); 10540 /* Try next level of interrupt mode */ 10541 cfg_mode = --intr_mode; 10542 } 10543 } 10544 10545 /* Perform post initialization setup */ 10546 lpfc_post_init_setup(phba); 10547 10548 /* Check if there are static vports to be created. */ 10549 lpfc_create_static_vport(phba); 10550 10551 return 0; 10552 10553 out_remove_device: 10554 lpfc_unset_hba(phba); 10555 out_free_sysfs_attr: 10556 lpfc_free_sysfs_attr(vport); 10557 out_destroy_shost: 10558 lpfc_destroy_shost(phba); 10559 out_unset_driver_resource: 10560 lpfc_unset_driver_resource_phase2(phba); 10561 out_free_iocb_list: 10562 lpfc_free_iocb_list(phba); 10563 out_unset_driver_resource_s3: 10564 lpfc_sli_driver_resource_unset(phba); 10565 out_unset_pci_mem_s3: 10566 lpfc_sli_pci_mem_unset(phba); 10567 out_disable_pci_dev: 10568 lpfc_disable_pci_dev(phba); 10569 if (shost) 10570 scsi_host_put(shost); 10571 out_free_phba: 10572 lpfc_hba_free(phba); 10573 return error; 10574 } 10575 10576 /** 10577 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 10578 * @pdev: pointer to PCI device 10579 * 10580 * This routine is to be called to disattach a device with SLI-3 interface 10581 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 10582 * removed from PCI bus, it performs all the necessary cleanup for the HBA 10583 * device to be removed from the PCI subsystem properly. 10584 **/ 10585 static void 10586 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 10587 { 10588 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10589 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 10590 struct lpfc_vport **vports; 10591 struct lpfc_hba *phba = vport->phba; 10592 int i; 10593 10594 spin_lock_irq(&phba->hbalock); 10595 vport->load_flag |= FC_UNLOADING; 10596 spin_unlock_irq(&phba->hbalock); 10597 10598 lpfc_free_sysfs_attr(vport); 10599 10600 /* Release all the vports against this physical port */ 10601 vports = lpfc_create_vport_work_array(phba); 10602 if (vports != NULL) 10603 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 10604 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 10605 continue; 10606 fc_vport_terminate(vports[i]->fc_vport); 10607 } 10608 lpfc_destroy_vport_work_array(phba, vports); 10609 10610 /* Remove FC host and then SCSI host with the physical port */ 10611 fc_remove_host(shost); 10612 scsi_remove_host(shost); 10613 10614 lpfc_cleanup(vport); 10615 10616 /* 10617 * Bring down the SLI Layer. This step disable all interrupts, 10618 * clears the rings, discards all mailbox commands, and resets 10619 * the HBA. 10620 */ 10621 10622 /* HBA interrupt will be disabled after this call */ 10623 lpfc_sli_hba_down(phba); 10624 /* Stop kthread signal shall trigger work_done one more time */ 10625 kthread_stop(phba->worker_thread); 10626 /* Final cleanup of txcmplq and reset the HBA */ 10627 lpfc_sli_brdrestart(phba); 10628 10629 kfree(phba->vpi_bmask); 10630 kfree(phba->vpi_ids); 10631 10632 lpfc_stop_hba_timers(phba); 10633 spin_lock_irq(&phba->hbalock); 10634 list_del_init(&vport->listentry); 10635 spin_unlock_irq(&phba->hbalock); 10636 10637 lpfc_debugfs_terminate(vport); 10638 10639 /* Disable SR-IOV if enabled */ 10640 if (phba->cfg_sriov_nr_virtfn) 10641 pci_disable_sriov(pdev); 10642 10643 /* Disable interrupt */ 10644 lpfc_sli_disable_intr(phba); 10645 10646 scsi_host_put(shost); 10647 10648 /* 10649 * Call scsi_free before mem_free since scsi bufs are released to their 10650 * corresponding pools here. 10651 */ 10652 lpfc_scsi_free(phba); 10653 lpfc_mem_free_all(phba); 10654 10655 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 10656 phba->hbqslimp.virt, phba->hbqslimp.phys); 10657 10658 /* Free resources associated with SLI2 interface */ 10659 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 10660 phba->slim2p.virt, phba->slim2p.phys); 10661 10662 /* unmap adapter SLIM and Control Registers */ 10663 iounmap(phba->ctrl_regs_memmap_p); 10664 iounmap(phba->slim_memmap_p); 10665 10666 lpfc_hba_free(phba); 10667 10668 pci_release_mem_regions(pdev); 10669 pci_disable_device(pdev); 10670 } 10671 10672 /** 10673 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 10674 * @pdev: pointer to PCI device 10675 * @msg: power management message 10676 * 10677 * This routine is to be called from the kernel's PCI subsystem to support 10678 * system Power Management (PM) to device with SLI-3 interface spec. When 10679 * PM invokes this method, it quiesces the device by stopping the driver's 10680 * worker thread for the device, turning off device's interrupt and DMA, 10681 * and bring the device offline. Note that as the driver implements the 10682 * minimum PM requirements to a power-aware driver's PM support for the 10683 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 10684 * to the suspend() method call will be treated as SUSPEND and the driver will 10685 * fully reinitialize its device during resume() method call, the driver will 10686 * set device to PCI_D3hot state in PCI config space instead of setting it 10687 * according to the @msg provided by the PM. 10688 * 10689 * Return code 10690 * 0 - driver suspended the device 10691 * Error otherwise 10692 **/ 10693 static int 10694 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 10695 { 10696 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10697 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10698 10699 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10700 "0473 PCI device Power Management suspend.\n"); 10701 10702 /* Bring down the device */ 10703 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10704 lpfc_offline(phba); 10705 kthread_stop(phba->worker_thread); 10706 10707 /* Disable interrupt from device */ 10708 lpfc_sli_disable_intr(phba); 10709 10710 /* Save device state to PCI config space */ 10711 pci_save_state(pdev); 10712 pci_set_power_state(pdev, PCI_D3hot); 10713 10714 return 0; 10715 } 10716 10717 /** 10718 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 10719 * @pdev: pointer to PCI device 10720 * 10721 * This routine is to be called from the kernel's PCI subsystem to support 10722 * system Power Management (PM) to device with SLI-3 interface spec. When PM 10723 * invokes this method, it restores the device's PCI config space state and 10724 * fully reinitializes the device and brings it online. Note that as the 10725 * driver implements the minimum PM requirements to a power-aware driver's 10726 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 10727 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 10728 * driver will fully reinitialize its device during resume() method call, 10729 * the device will be set to PCI_D0 directly in PCI config space before 10730 * restoring the state. 10731 * 10732 * Return code 10733 * 0 - driver suspended the device 10734 * Error otherwise 10735 **/ 10736 static int 10737 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 10738 { 10739 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10740 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10741 uint32_t intr_mode; 10742 int error; 10743 10744 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10745 "0452 PCI device Power Management resume.\n"); 10746 10747 /* Restore device state from PCI config space */ 10748 pci_set_power_state(pdev, PCI_D0); 10749 pci_restore_state(pdev); 10750 10751 /* 10752 * As the new kernel behavior of pci_restore_state() API call clears 10753 * device saved_state flag, need to save the restored state again. 10754 */ 10755 pci_save_state(pdev); 10756 10757 if (pdev->is_busmaster) 10758 pci_set_master(pdev); 10759 10760 /* Startup the kernel thread for this host adapter. */ 10761 phba->worker_thread = kthread_run(lpfc_do_work, phba, 10762 "lpfc_worker_%d", phba->brd_no); 10763 if (IS_ERR(phba->worker_thread)) { 10764 error = PTR_ERR(phba->worker_thread); 10765 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10766 "0434 PM resume failed to start worker " 10767 "thread: error=x%x.\n", error); 10768 return error; 10769 } 10770 10771 /* Configure and enable interrupt */ 10772 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 10773 if (intr_mode == LPFC_INTR_ERROR) { 10774 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10775 "0430 PM resume Failed to enable interrupt\n"); 10776 return -EIO; 10777 } else 10778 phba->intr_mode = intr_mode; 10779 10780 /* Restart HBA and bring it online */ 10781 lpfc_sli_brdrestart(phba); 10782 lpfc_online(phba); 10783 10784 /* Log the current active interrupt mode */ 10785 lpfc_log_intr_mode(phba, phba->intr_mode); 10786 10787 return 0; 10788 } 10789 10790 /** 10791 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 10792 * @phba: pointer to lpfc hba data structure. 10793 * 10794 * This routine is called to prepare the SLI3 device for PCI slot recover. It 10795 * aborts all the outstanding SCSI I/Os to the pci device. 10796 **/ 10797 static void 10798 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 10799 { 10800 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10801 "2723 PCI channel I/O abort preparing for recovery\n"); 10802 10803 /* 10804 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 10805 * and let the SCSI mid-layer to retry them to recover. 10806 */ 10807 lpfc_sli_abort_fcp_rings(phba); 10808 } 10809 10810 /** 10811 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 10812 * @phba: pointer to lpfc hba data structure. 10813 * 10814 * This routine is called to prepare the SLI3 device for PCI slot reset. It 10815 * disables the device interrupt and pci device, and aborts the internal FCP 10816 * pending I/Os. 10817 **/ 10818 static void 10819 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 10820 { 10821 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10822 "2710 PCI channel disable preparing for reset\n"); 10823 10824 /* Block any management I/Os to the device */ 10825 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 10826 10827 /* Block all SCSI devices' I/Os on the host */ 10828 lpfc_scsi_dev_block(phba); 10829 10830 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 10831 lpfc_sli_flush_fcp_rings(phba); 10832 10833 /* stop all timers */ 10834 lpfc_stop_hba_timers(phba); 10835 10836 /* Disable interrupt and pci device */ 10837 lpfc_sli_disable_intr(phba); 10838 pci_disable_device(phba->pcidev); 10839 } 10840 10841 /** 10842 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 10843 * @phba: pointer to lpfc hba data structure. 10844 * 10845 * This routine is called to prepare the SLI3 device for PCI slot permanently 10846 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 10847 * pending I/Os. 10848 **/ 10849 static void 10850 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 10851 { 10852 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10853 "2711 PCI channel permanent disable for failure\n"); 10854 /* Block all SCSI devices' I/Os on the host */ 10855 lpfc_scsi_dev_block(phba); 10856 10857 /* stop all timers */ 10858 lpfc_stop_hba_timers(phba); 10859 10860 /* Clean up all driver's outstanding SCSI I/Os */ 10861 lpfc_sli_flush_fcp_rings(phba); 10862 } 10863 10864 /** 10865 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 10866 * @pdev: pointer to PCI device. 10867 * @state: the current PCI connection state. 10868 * 10869 * This routine is called from the PCI subsystem for I/O error handling to 10870 * device with SLI-3 interface spec. This function is called by the PCI 10871 * subsystem after a PCI bus error affecting this device has been detected. 10872 * When this function is invoked, it will need to stop all the I/Os and 10873 * interrupt(s) to the device. Once that is done, it will return 10874 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 10875 * as desired. 10876 * 10877 * Return codes 10878 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 10879 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10880 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10881 **/ 10882 static pci_ers_result_t 10883 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 10884 { 10885 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10886 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10887 10888 switch (state) { 10889 case pci_channel_io_normal: 10890 /* Non-fatal error, prepare for recovery */ 10891 lpfc_sli_prep_dev_for_recover(phba); 10892 return PCI_ERS_RESULT_CAN_RECOVER; 10893 case pci_channel_io_frozen: 10894 /* Fatal error, prepare for slot reset */ 10895 lpfc_sli_prep_dev_for_reset(phba); 10896 return PCI_ERS_RESULT_NEED_RESET; 10897 case pci_channel_io_perm_failure: 10898 /* Permanent failure, prepare for device down */ 10899 lpfc_sli_prep_dev_for_perm_failure(phba); 10900 return PCI_ERS_RESULT_DISCONNECT; 10901 default: 10902 /* Unknown state, prepare and request slot reset */ 10903 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10904 "0472 Unknown PCI error state: x%x\n", state); 10905 lpfc_sli_prep_dev_for_reset(phba); 10906 return PCI_ERS_RESULT_NEED_RESET; 10907 } 10908 } 10909 10910 /** 10911 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 10912 * @pdev: pointer to PCI device. 10913 * 10914 * This routine is called from the PCI subsystem for error handling to 10915 * device with SLI-3 interface spec. This is called after PCI bus has been 10916 * reset to restart the PCI card from scratch, as if from a cold-boot. 10917 * During the PCI subsystem error recovery, after driver returns 10918 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 10919 * recovery and then call this routine before calling the .resume method 10920 * to recover the device. This function will initialize the HBA device, 10921 * enable the interrupt, but it will just put the HBA to offline state 10922 * without passing any I/O traffic. 10923 * 10924 * Return codes 10925 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10926 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10927 */ 10928 static pci_ers_result_t 10929 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 10930 { 10931 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10932 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10933 struct lpfc_sli *psli = &phba->sli; 10934 uint32_t intr_mode; 10935 10936 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 10937 if (pci_enable_device_mem(pdev)) { 10938 printk(KERN_ERR "lpfc: Cannot re-enable " 10939 "PCI device after reset.\n"); 10940 return PCI_ERS_RESULT_DISCONNECT; 10941 } 10942 10943 pci_restore_state(pdev); 10944 10945 /* 10946 * As the new kernel behavior of pci_restore_state() API call clears 10947 * device saved_state flag, need to save the restored state again. 10948 */ 10949 pci_save_state(pdev); 10950 10951 if (pdev->is_busmaster) 10952 pci_set_master(pdev); 10953 10954 spin_lock_irq(&phba->hbalock); 10955 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 10956 spin_unlock_irq(&phba->hbalock); 10957 10958 /* Configure and enable interrupt */ 10959 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 10960 if (intr_mode == LPFC_INTR_ERROR) { 10961 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10962 "0427 Cannot re-enable interrupt after " 10963 "slot reset.\n"); 10964 return PCI_ERS_RESULT_DISCONNECT; 10965 } else 10966 phba->intr_mode = intr_mode; 10967 10968 /* Take device offline, it will perform cleanup */ 10969 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10970 lpfc_offline(phba); 10971 lpfc_sli_brdrestart(phba); 10972 10973 /* Log the current active interrupt mode */ 10974 lpfc_log_intr_mode(phba, phba->intr_mode); 10975 10976 return PCI_ERS_RESULT_RECOVERED; 10977 } 10978 10979 /** 10980 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 10981 * @pdev: pointer to PCI device 10982 * 10983 * This routine is called from the PCI subsystem for error handling to device 10984 * with SLI-3 interface spec. It is called when kernel error recovery tells 10985 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 10986 * error recovery. After this call, traffic can start to flow from this device 10987 * again. 10988 */ 10989 static void 10990 lpfc_io_resume_s3(struct pci_dev *pdev) 10991 { 10992 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10993 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10994 10995 /* Bring device online, it will be no-op for non-fatal error resume */ 10996 lpfc_online(phba); 10997 10998 /* Clean up Advanced Error Reporting (AER) if needed */ 10999 if (phba->hba_flag & HBA_AER_ENABLED) 11000 pci_cleanup_aer_uncorrect_error_status(pdev); 11001 } 11002 11003 /** 11004 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 11005 * @phba: pointer to lpfc hba data structure. 11006 * 11007 * returns the number of ELS/CT IOCBs to reserve 11008 **/ 11009 int 11010 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 11011 { 11012 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 11013 11014 if (phba->sli_rev == LPFC_SLI_REV4) { 11015 if (max_xri <= 100) 11016 return 10; 11017 else if (max_xri <= 256) 11018 return 25; 11019 else if (max_xri <= 512) 11020 return 50; 11021 else if (max_xri <= 1024) 11022 return 100; 11023 else if (max_xri <= 1536) 11024 return 150; 11025 else if (max_xri <= 2048) 11026 return 200; 11027 else 11028 return 250; 11029 } else 11030 return 0; 11031 } 11032 11033 /** 11034 * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve 11035 * @phba: pointer to lpfc hba data structure. 11036 * 11037 * returns the number of ELS/CT + NVMET IOCBs to reserve 11038 **/ 11039 int 11040 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba) 11041 { 11042 int max_xri = lpfc_sli4_get_els_iocb_cnt(phba); 11043 11044 if (phba->nvmet_support) 11045 max_xri += LPFC_NVMET_BUF_POST; 11046 return max_xri; 11047 } 11048 11049 11050 /** 11051 * lpfc_write_firmware - attempt to write a firmware image to the port 11052 * @fw: pointer to firmware image returned from request_firmware. 11053 * @phba: pointer to lpfc hba data structure. 11054 * 11055 **/ 11056 static void 11057 lpfc_write_firmware(const struct firmware *fw, void *context) 11058 { 11059 struct lpfc_hba *phba = (struct lpfc_hba *)context; 11060 char fwrev[FW_REV_STR_SIZE]; 11061 struct lpfc_grp_hdr *image; 11062 struct list_head dma_buffer_list; 11063 int i, rc = 0; 11064 struct lpfc_dmabuf *dmabuf, *next; 11065 uint32_t offset = 0, temp_offset = 0; 11066 uint32_t magic_number, ftype, fid, fsize; 11067 11068 /* It can be null in no-wait mode, sanity check */ 11069 if (!fw) { 11070 rc = -ENXIO; 11071 goto out; 11072 } 11073 image = (struct lpfc_grp_hdr *)fw->data; 11074 11075 magic_number = be32_to_cpu(image->magic_number); 11076 ftype = bf_get_be32(lpfc_grp_hdr_file_type, image); 11077 fid = bf_get_be32(lpfc_grp_hdr_id, image), 11078 fsize = be32_to_cpu(image->size); 11079 11080 INIT_LIST_HEAD(&dma_buffer_list); 11081 if ((magic_number != LPFC_GROUP_OJECT_MAGIC_G5 && 11082 magic_number != LPFC_GROUP_OJECT_MAGIC_G6) || 11083 ftype != LPFC_FILE_TYPE_GROUP || fsize != fw->size) { 11084 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11085 "3022 Invalid FW image found. " 11086 "Magic:%x Type:%x ID:%x Size %d %zd\n", 11087 magic_number, ftype, fid, fsize, fw->size); 11088 rc = -EINVAL; 11089 goto release_out; 11090 } 11091 lpfc_decode_firmware_rev(phba, fwrev, 1); 11092 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 11093 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11094 "3023 Updating Firmware, Current Version:%s " 11095 "New Version:%s\n", 11096 fwrev, image->revision); 11097 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 11098 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 11099 GFP_KERNEL); 11100 if (!dmabuf) { 11101 rc = -ENOMEM; 11102 goto release_out; 11103 } 11104 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 11105 SLI4_PAGE_SIZE, 11106 &dmabuf->phys, 11107 GFP_KERNEL); 11108 if (!dmabuf->virt) { 11109 kfree(dmabuf); 11110 rc = -ENOMEM; 11111 goto release_out; 11112 } 11113 list_add_tail(&dmabuf->list, &dma_buffer_list); 11114 } 11115 while (offset < fw->size) { 11116 temp_offset = offset; 11117 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 11118 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 11119 memcpy(dmabuf->virt, 11120 fw->data + temp_offset, 11121 fw->size - temp_offset); 11122 temp_offset = fw->size; 11123 break; 11124 } 11125 memcpy(dmabuf->virt, fw->data + temp_offset, 11126 SLI4_PAGE_SIZE); 11127 temp_offset += SLI4_PAGE_SIZE; 11128 } 11129 rc = lpfc_wr_object(phba, &dma_buffer_list, 11130 (fw->size - offset), &offset); 11131 if (rc) 11132 goto release_out; 11133 } 11134 rc = offset; 11135 } 11136 11137 release_out: 11138 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 11139 list_del(&dmabuf->list); 11140 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 11141 dmabuf->virt, dmabuf->phys); 11142 kfree(dmabuf); 11143 } 11144 release_firmware(fw); 11145 out: 11146 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11147 "3024 Firmware update done: %d.\n", rc); 11148 return; 11149 } 11150 11151 /** 11152 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade 11153 * @phba: pointer to lpfc hba data structure. 11154 * 11155 * This routine is called to perform Linux generic firmware upgrade on device 11156 * that supports such feature. 11157 **/ 11158 int 11159 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade) 11160 { 11161 uint8_t file_name[ELX_MODEL_NAME_SIZE]; 11162 int ret; 11163 const struct firmware *fw; 11164 11165 /* Only supported on SLI4 interface type 2 for now */ 11166 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 11167 LPFC_SLI_INTF_IF_TYPE_2) 11168 return -EPERM; 11169 11170 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName); 11171 11172 if (fw_upgrade == INT_FW_UPGRADE) { 11173 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, 11174 file_name, &phba->pcidev->dev, 11175 GFP_KERNEL, (void *)phba, 11176 lpfc_write_firmware); 11177 } else if (fw_upgrade == RUN_FW_UPGRADE) { 11178 ret = request_firmware(&fw, file_name, &phba->pcidev->dev); 11179 if (!ret) 11180 lpfc_write_firmware(fw, (void *)phba); 11181 } else { 11182 ret = -EINVAL; 11183 } 11184 11185 return ret; 11186 } 11187 11188 /** 11189 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 11190 * @pdev: pointer to PCI device 11191 * @pid: pointer to PCI device identifier 11192 * 11193 * This routine is called from the kernel's PCI subsystem to device with 11194 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 11195 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 11196 * information of the device and driver to see if the driver state that it 11197 * can support this kind of device. If the match is successful, the driver 11198 * core invokes this routine. If this routine determines it can claim the HBA, 11199 * it does all the initialization that it needs to do to handle the HBA 11200 * properly. 11201 * 11202 * Return code 11203 * 0 - driver can claim the device 11204 * negative value - driver can not claim the device 11205 **/ 11206 static int 11207 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 11208 { 11209 struct lpfc_hba *phba; 11210 struct lpfc_vport *vport = NULL; 11211 struct Scsi_Host *shost = NULL; 11212 int error; 11213 uint32_t cfg_mode, intr_mode; 11214 11215 /* Allocate memory for HBA structure */ 11216 phba = lpfc_hba_alloc(pdev); 11217 if (!phba) 11218 return -ENOMEM; 11219 11220 /* Perform generic PCI device enabling operation */ 11221 error = lpfc_enable_pci_dev(phba); 11222 if (error) 11223 goto out_free_phba; 11224 11225 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 11226 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 11227 if (error) 11228 goto out_disable_pci_dev; 11229 11230 /* Set up SLI-4 specific device PCI memory space */ 11231 error = lpfc_sli4_pci_mem_setup(phba); 11232 if (error) { 11233 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11234 "1410 Failed to set up pci memory space.\n"); 11235 goto out_disable_pci_dev; 11236 } 11237 11238 /* Set up SLI-4 Specific device driver resources */ 11239 error = lpfc_sli4_driver_resource_setup(phba); 11240 if (error) { 11241 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11242 "1412 Failed to set up driver resource.\n"); 11243 goto out_unset_pci_mem_s4; 11244 } 11245 11246 INIT_LIST_HEAD(&phba->active_rrq_list); 11247 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 11248 11249 /* Set up common device driver resources */ 11250 error = lpfc_setup_driver_resource_phase2(phba); 11251 if (error) { 11252 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11253 "1414 Failed to set up driver resource.\n"); 11254 goto out_unset_driver_resource_s4; 11255 } 11256 11257 /* Get the default values for Model Name and Description */ 11258 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 11259 11260 /* Create SCSI host to the physical port */ 11261 error = lpfc_create_shost(phba); 11262 if (error) { 11263 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11264 "1415 Failed to create scsi host.\n"); 11265 goto out_unset_driver_resource; 11266 } 11267 11268 /* Configure sysfs attributes */ 11269 vport = phba->pport; 11270 error = lpfc_alloc_sysfs_attr(vport); 11271 if (error) { 11272 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11273 "1416 Failed to allocate sysfs attr\n"); 11274 goto out_destroy_shost; 11275 } 11276 11277 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 11278 /* Now, trying to enable interrupt and bring up the device */ 11279 cfg_mode = phba->cfg_use_msi; 11280 11281 /* Put device to a known state before enabling interrupt */ 11282 lpfc_stop_port(phba); 11283 11284 /* Configure and enable interrupt */ 11285 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 11286 if (intr_mode == LPFC_INTR_ERROR) { 11287 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11288 "0426 Failed to enable interrupt.\n"); 11289 error = -ENODEV; 11290 goto out_free_sysfs_attr; 11291 } 11292 /* Default to single EQ for non-MSI-X */ 11293 if (phba->intr_type != MSIX) { 11294 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 11295 phba->cfg_fcp_io_channel = 1; 11296 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 11297 phba->cfg_nvme_io_channel = 1; 11298 if (phba->nvmet_support) 11299 phba->cfg_nvmet_mrq = 1; 11300 } 11301 phba->io_channel_irqs = 1; 11302 } 11303 11304 /* Set up SLI-4 HBA */ 11305 if (lpfc_sli4_hba_setup(phba)) { 11306 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11307 "1421 Failed to set up hba\n"); 11308 error = -ENODEV; 11309 goto out_disable_intr; 11310 } 11311 11312 /* Log the current active interrupt mode */ 11313 phba->intr_mode = intr_mode; 11314 lpfc_log_intr_mode(phba, intr_mode); 11315 11316 /* Perform post initialization setup */ 11317 lpfc_post_init_setup(phba); 11318 11319 /* NVME support in FW earlier in the driver load corrects the 11320 * FC4 type making a check for nvme_support unnecessary. 11321 */ 11322 if ((phba->nvmet_support == 0) && 11323 (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 11324 /* Create NVME binding with nvme_fc_transport. This 11325 * ensures the vport is initialized. If the localport 11326 * create fails, it should not unload the driver to 11327 * support field issues. 11328 */ 11329 error = lpfc_nvme_create_localport(vport); 11330 if (error) { 11331 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11332 "6004 NVME registration failed, " 11333 "error x%x\n", 11334 error); 11335 } 11336 } 11337 11338 /* check for firmware upgrade or downgrade */ 11339 if (phba->cfg_request_firmware_upgrade) 11340 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE); 11341 11342 /* Check if there are static vports to be created. */ 11343 lpfc_create_static_vport(phba); 11344 return 0; 11345 11346 out_disable_intr: 11347 lpfc_sli4_disable_intr(phba); 11348 out_free_sysfs_attr: 11349 lpfc_free_sysfs_attr(vport); 11350 out_destroy_shost: 11351 lpfc_destroy_shost(phba); 11352 out_unset_driver_resource: 11353 lpfc_unset_driver_resource_phase2(phba); 11354 out_unset_driver_resource_s4: 11355 lpfc_sli4_driver_resource_unset(phba); 11356 out_unset_pci_mem_s4: 11357 lpfc_sli4_pci_mem_unset(phba); 11358 out_disable_pci_dev: 11359 lpfc_disable_pci_dev(phba); 11360 if (shost) 11361 scsi_host_put(shost); 11362 out_free_phba: 11363 lpfc_hba_free(phba); 11364 return error; 11365 } 11366 11367 /** 11368 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 11369 * @pdev: pointer to PCI device 11370 * 11371 * This routine is called from the kernel's PCI subsystem to device with 11372 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 11373 * removed from PCI bus, it performs all the necessary cleanup for the HBA 11374 * device to be removed from the PCI subsystem properly. 11375 **/ 11376 static void 11377 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 11378 { 11379 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11380 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 11381 struct lpfc_vport **vports; 11382 struct lpfc_hba *phba = vport->phba; 11383 int i; 11384 11385 /* Mark the device unloading flag */ 11386 spin_lock_irq(&phba->hbalock); 11387 vport->load_flag |= FC_UNLOADING; 11388 spin_unlock_irq(&phba->hbalock); 11389 11390 /* Free the HBA sysfs attributes */ 11391 lpfc_free_sysfs_attr(vport); 11392 11393 /* Release all the vports against this physical port */ 11394 vports = lpfc_create_vport_work_array(phba); 11395 if (vports != NULL) 11396 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 11397 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 11398 continue; 11399 fc_vport_terminate(vports[i]->fc_vport); 11400 } 11401 lpfc_destroy_vport_work_array(phba, vports); 11402 11403 /* Remove FC host and then SCSI host with the physical port */ 11404 fc_remove_host(shost); 11405 scsi_remove_host(shost); 11406 11407 /* Perform ndlp cleanup on the physical port. The nvme and nvmet 11408 * localports are destroyed after to cleanup all transport memory. 11409 */ 11410 lpfc_cleanup(vport); 11411 lpfc_nvmet_destroy_targetport(phba); 11412 lpfc_nvme_destroy_localport(vport); 11413 11414 /* 11415 * Bring down the SLI Layer. This step disables all interrupts, 11416 * clears the rings, discards all mailbox commands, and resets 11417 * the HBA FCoE function. 11418 */ 11419 lpfc_debugfs_terminate(vport); 11420 lpfc_sli4_hba_unset(phba); 11421 11422 spin_lock_irq(&phba->hbalock); 11423 list_del_init(&vport->listentry); 11424 spin_unlock_irq(&phba->hbalock); 11425 11426 /* Perform scsi free before driver resource_unset since scsi 11427 * buffers are released to their corresponding pools here. 11428 */ 11429 lpfc_scsi_free(phba); 11430 lpfc_nvme_free(phba); 11431 lpfc_free_iocb_list(phba); 11432 11433 lpfc_sli4_driver_resource_unset(phba); 11434 11435 /* Unmap adapter Control and Doorbell registers */ 11436 lpfc_sli4_pci_mem_unset(phba); 11437 11438 /* Release PCI resources and disable device's PCI function */ 11439 scsi_host_put(shost); 11440 lpfc_disable_pci_dev(phba); 11441 11442 /* Finally, free the driver's device data structure */ 11443 lpfc_hba_free(phba); 11444 11445 return; 11446 } 11447 11448 /** 11449 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 11450 * @pdev: pointer to PCI device 11451 * @msg: power management message 11452 * 11453 * This routine is called from the kernel's PCI subsystem to support system 11454 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 11455 * this method, it quiesces the device by stopping the driver's worker 11456 * thread for the device, turning off device's interrupt and DMA, and bring 11457 * the device offline. Note that as the driver implements the minimum PM 11458 * requirements to a power-aware driver's PM support for suspend/resume -- all 11459 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 11460 * method call will be treated as SUSPEND and the driver will fully 11461 * reinitialize its device during resume() method call, the driver will set 11462 * device to PCI_D3hot state in PCI config space instead of setting it 11463 * according to the @msg provided by the PM. 11464 * 11465 * Return code 11466 * 0 - driver suspended the device 11467 * Error otherwise 11468 **/ 11469 static int 11470 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 11471 { 11472 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11473 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11474 11475 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11476 "2843 PCI device Power Management suspend.\n"); 11477 11478 /* Bring down the device */ 11479 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 11480 lpfc_offline(phba); 11481 kthread_stop(phba->worker_thread); 11482 11483 /* Disable interrupt from device */ 11484 lpfc_sli4_disable_intr(phba); 11485 lpfc_sli4_queue_destroy(phba); 11486 11487 /* Save device state to PCI config space */ 11488 pci_save_state(pdev); 11489 pci_set_power_state(pdev, PCI_D3hot); 11490 11491 return 0; 11492 } 11493 11494 /** 11495 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 11496 * @pdev: pointer to PCI device 11497 * 11498 * This routine is called from the kernel's PCI subsystem to support system 11499 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 11500 * this method, it restores the device's PCI config space state and fully 11501 * reinitializes the device and brings it online. Note that as the driver 11502 * implements the minimum PM requirements to a power-aware driver's PM for 11503 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 11504 * to the suspend() method call will be treated as SUSPEND and the driver 11505 * will fully reinitialize its device during resume() method call, the device 11506 * will be set to PCI_D0 directly in PCI config space before restoring the 11507 * state. 11508 * 11509 * Return code 11510 * 0 - driver suspended the device 11511 * Error otherwise 11512 **/ 11513 static int 11514 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 11515 { 11516 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11517 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11518 uint32_t intr_mode; 11519 int error; 11520 11521 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11522 "0292 PCI device Power Management resume.\n"); 11523 11524 /* Restore device state from PCI config space */ 11525 pci_set_power_state(pdev, PCI_D0); 11526 pci_restore_state(pdev); 11527 11528 /* 11529 * As the new kernel behavior of pci_restore_state() API call clears 11530 * device saved_state flag, need to save the restored state again. 11531 */ 11532 pci_save_state(pdev); 11533 11534 if (pdev->is_busmaster) 11535 pci_set_master(pdev); 11536 11537 /* Startup the kernel thread for this host adapter. */ 11538 phba->worker_thread = kthread_run(lpfc_do_work, phba, 11539 "lpfc_worker_%d", phba->brd_no); 11540 if (IS_ERR(phba->worker_thread)) { 11541 error = PTR_ERR(phba->worker_thread); 11542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11543 "0293 PM resume failed to start worker " 11544 "thread: error=x%x.\n", error); 11545 return error; 11546 } 11547 11548 /* Configure and enable interrupt */ 11549 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 11550 if (intr_mode == LPFC_INTR_ERROR) { 11551 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11552 "0294 PM resume Failed to enable interrupt\n"); 11553 return -EIO; 11554 } else 11555 phba->intr_mode = intr_mode; 11556 11557 /* Restart HBA and bring it online */ 11558 lpfc_sli_brdrestart(phba); 11559 lpfc_online(phba); 11560 11561 /* Log the current active interrupt mode */ 11562 lpfc_log_intr_mode(phba, phba->intr_mode); 11563 11564 return 0; 11565 } 11566 11567 /** 11568 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 11569 * @phba: pointer to lpfc hba data structure. 11570 * 11571 * This routine is called to prepare the SLI4 device for PCI slot recover. It 11572 * aborts all the outstanding SCSI I/Os to the pci device. 11573 **/ 11574 static void 11575 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 11576 { 11577 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11578 "2828 PCI channel I/O abort preparing for recovery\n"); 11579 /* 11580 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 11581 * and let the SCSI mid-layer to retry them to recover. 11582 */ 11583 lpfc_sli_abort_fcp_rings(phba); 11584 } 11585 11586 /** 11587 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 11588 * @phba: pointer to lpfc hba data structure. 11589 * 11590 * This routine is called to prepare the SLI4 device for PCI slot reset. It 11591 * disables the device interrupt and pci device, and aborts the internal FCP 11592 * pending I/Os. 11593 **/ 11594 static void 11595 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 11596 { 11597 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11598 "2826 PCI channel disable preparing for reset\n"); 11599 11600 /* Block any management I/Os to the device */ 11601 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); 11602 11603 /* Block all SCSI devices' I/Os on the host */ 11604 lpfc_scsi_dev_block(phba); 11605 11606 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 11607 lpfc_sli_flush_fcp_rings(phba); 11608 11609 /* stop all timers */ 11610 lpfc_stop_hba_timers(phba); 11611 11612 /* Disable interrupt and pci device */ 11613 lpfc_sli4_disable_intr(phba); 11614 lpfc_sli4_queue_destroy(phba); 11615 pci_disable_device(phba->pcidev); 11616 } 11617 11618 /** 11619 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 11620 * @phba: pointer to lpfc hba data structure. 11621 * 11622 * This routine is called to prepare the SLI4 device for PCI slot permanently 11623 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 11624 * pending I/Os. 11625 **/ 11626 static void 11627 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 11628 { 11629 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11630 "2827 PCI channel permanent disable for failure\n"); 11631 11632 /* Block all SCSI devices' I/Os on the host */ 11633 lpfc_scsi_dev_block(phba); 11634 11635 /* stop all timers */ 11636 lpfc_stop_hba_timers(phba); 11637 11638 /* Clean up all driver's outstanding SCSI I/Os */ 11639 lpfc_sli_flush_fcp_rings(phba); 11640 } 11641 11642 /** 11643 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 11644 * @pdev: pointer to PCI device. 11645 * @state: the current PCI connection state. 11646 * 11647 * This routine is called from the PCI subsystem for error handling to device 11648 * with SLI-4 interface spec. This function is called by the PCI subsystem 11649 * after a PCI bus error affecting this device has been detected. When this 11650 * function is invoked, it will need to stop all the I/Os and interrupt(s) 11651 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 11652 * for the PCI subsystem to perform proper recovery as desired. 11653 * 11654 * Return codes 11655 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11656 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11657 **/ 11658 static pci_ers_result_t 11659 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 11660 { 11661 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11662 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11663 11664 switch (state) { 11665 case pci_channel_io_normal: 11666 /* Non-fatal error, prepare for recovery */ 11667 lpfc_sli4_prep_dev_for_recover(phba); 11668 return PCI_ERS_RESULT_CAN_RECOVER; 11669 case pci_channel_io_frozen: 11670 /* Fatal error, prepare for slot reset */ 11671 lpfc_sli4_prep_dev_for_reset(phba); 11672 return PCI_ERS_RESULT_NEED_RESET; 11673 case pci_channel_io_perm_failure: 11674 /* Permanent failure, prepare for device down */ 11675 lpfc_sli4_prep_dev_for_perm_failure(phba); 11676 return PCI_ERS_RESULT_DISCONNECT; 11677 default: 11678 /* Unknown state, prepare and request slot reset */ 11679 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11680 "2825 Unknown PCI error state: x%x\n", state); 11681 lpfc_sli4_prep_dev_for_reset(phba); 11682 return PCI_ERS_RESULT_NEED_RESET; 11683 } 11684 } 11685 11686 /** 11687 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 11688 * @pdev: pointer to PCI device. 11689 * 11690 * This routine is called from the PCI subsystem for error handling to device 11691 * with SLI-4 interface spec. It is called after PCI bus has been reset to 11692 * restart the PCI card from scratch, as if from a cold-boot. During the 11693 * PCI subsystem error recovery, after the driver returns 11694 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 11695 * recovery and then call this routine before calling the .resume method to 11696 * recover the device. This function will initialize the HBA device, enable 11697 * the interrupt, but it will just put the HBA to offline state without 11698 * passing any I/O traffic. 11699 * 11700 * Return codes 11701 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11702 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11703 */ 11704 static pci_ers_result_t 11705 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 11706 { 11707 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11708 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11709 struct lpfc_sli *psli = &phba->sli; 11710 uint32_t intr_mode; 11711 11712 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 11713 if (pci_enable_device_mem(pdev)) { 11714 printk(KERN_ERR "lpfc: Cannot re-enable " 11715 "PCI device after reset.\n"); 11716 return PCI_ERS_RESULT_DISCONNECT; 11717 } 11718 11719 pci_restore_state(pdev); 11720 11721 /* 11722 * As the new kernel behavior of pci_restore_state() API call clears 11723 * device saved_state flag, need to save the restored state again. 11724 */ 11725 pci_save_state(pdev); 11726 11727 if (pdev->is_busmaster) 11728 pci_set_master(pdev); 11729 11730 spin_lock_irq(&phba->hbalock); 11731 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 11732 spin_unlock_irq(&phba->hbalock); 11733 11734 /* Configure and enable interrupt */ 11735 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 11736 if (intr_mode == LPFC_INTR_ERROR) { 11737 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11738 "2824 Cannot re-enable interrupt after " 11739 "slot reset.\n"); 11740 return PCI_ERS_RESULT_DISCONNECT; 11741 } else 11742 phba->intr_mode = intr_mode; 11743 11744 /* Log the current active interrupt mode */ 11745 lpfc_log_intr_mode(phba, phba->intr_mode); 11746 11747 return PCI_ERS_RESULT_RECOVERED; 11748 } 11749 11750 /** 11751 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 11752 * @pdev: pointer to PCI device 11753 * 11754 * This routine is called from the PCI subsystem for error handling to device 11755 * with SLI-4 interface spec. It is called when kernel error recovery tells 11756 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 11757 * error recovery. After this call, traffic can start to flow from this device 11758 * again. 11759 **/ 11760 static void 11761 lpfc_io_resume_s4(struct pci_dev *pdev) 11762 { 11763 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11764 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11765 11766 /* 11767 * In case of slot reset, as function reset is performed through 11768 * mailbox command which needs DMA to be enabled, this operation 11769 * has to be moved to the io resume phase. Taking device offline 11770 * will perform the necessary cleanup. 11771 */ 11772 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 11773 /* Perform device reset */ 11774 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 11775 lpfc_offline(phba); 11776 lpfc_sli_brdrestart(phba); 11777 /* Bring the device back online */ 11778 lpfc_online(phba); 11779 } 11780 11781 /* Clean up Advanced Error Reporting (AER) if needed */ 11782 if (phba->hba_flag & HBA_AER_ENABLED) 11783 pci_cleanup_aer_uncorrect_error_status(pdev); 11784 } 11785 11786 /** 11787 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 11788 * @pdev: pointer to PCI device 11789 * @pid: pointer to PCI device identifier 11790 * 11791 * This routine is to be registered to the kernel's PCI subsystem. When an 11792 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 11793 * at PCI device-specific information of the device and driver to see if the 11794 * driver state that it can support this kind of device. If the match is 11795 * successful, the driver core invokes this routine. This routine dispatches 11796 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 11797 * do all the initialization that it needs to do to handle the HBA device 11798 * properly. 11799 * 11800 * Return code 11801 * 0 - driver can claim the device 11802 * negative value - driver can not claim the device 11803 **/ 11804 static int 11805 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 11806 { 11807 int rc; 11808 struct lpfc_sli_intf intf; 11809 11810 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 11811 return -ENODEV; 11812 11813 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 11814 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 11815 rc = lpfc_pci_probe_one_s4(pdev, pid); 11816 else 11817 rc = lpfc_pci_probe_one_s3(pdev, pid); 11818 11819 return rc; 11820 } 11821 11822 /** 11823 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 11824 * @pdev: pointer to PCI device 11825 * 11826 * This routine is to be registered to the kernel's PCI subsystem. When an 11827 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 11828 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 11829 * remove routine, which will perform all the necessary cleanup for the 11830 * device to be removed from the PCI subsystem properly. 11831 **/ 11832 static void 11833 lpfc_pci_remove_one(struct pci_dev *pdev) 11834 { 11835 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11836 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11837 11838 switch (phba->pci_dev_grp) { 11839 case LPFC_PCI_DEV_LP: 11840 lpfc_pci_remove_one_s3(pdev); 11841 break; 11842 case LPFC_PCI_DEV_OC: 11843 lpfc_pci_remove_one_s4(pdev); 11844 break; 11845 default: 11846 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11847 "1424 Invalid PCI device group: 0x%x\n", 11848 phba->pci_dev_grp); 11849 break; 11850 } 11851 return; 11852 } 11853 11854 /** 11855 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 11856 * @pdev: pointer to PCI device 11857 * @msg: power management message 11858 * 11859 * This routine is to be registered to the kernel's PCI subsystem to support 11860 * system Power Management (PM). When PM invokes this method, it dispatches 11861 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 11862 * suspend the device. 11863 * 11864 * Return code 11865 * 0 - driver suspended the device 11866 * Error otherwise 11867 **/ 11868 static int 11869 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 11870 { 11871 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11872 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11873 int rc = -ENODEV; 11874 11875 switch (phba->pci_dev_grp) { 11876 case LPFC_PCI_DEV_LP: 11877 rc = lpfc_pci_suspend_one_s3(pdev, msg); 11878 break; 11879 case LPFC_PCI_DEV_OC: 11880 rc = lpfc_pci_suspend_one_s4(pdev, msg); 11881 break; 11882 default: 11883 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11884 "1425 Invalid PCI device group: 0x%x\n", 11885 phba->pci_dev_grp); 11886 break; 11887 } 11888 return rc; 11889 } 11890 11891 /** 11892 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 11893 * @pdev: pointer to PCI device 11894 * 11895 * This routine is to be registered to the kernel's PCI subsystem to support 11896 * system Power Management (PM). When PM invokes this method, it dispatches 11897 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 11898 * resume the device. 11899 * 11900 * Return code 11901 * 0 - driver suspended the device 11902 * Error otherwise 11903 **/ 11904 static int 11905 lpfc_pci_resume_one(struct pci_dev *pdev) 11906 { 11907 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11908 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11909 int rc = -ENODEV; 11910 11911 switch (phba->pci_dev_grp) { 11912 case LPFC_PCI_DEV_LP: 11913 rc = lpfc_pci_resume_one_s3(pdev); 11914 break; 11915 case LPFC_PCI_DEV_OC: 11916 rc = lpfc_pci_resume_one_s4(pdev); 11917 break; 11918 default: 11919 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11920 "1426 Invalid PCI device group: 0x%x\n", 11921 phba->pci_dev_grp); 11922 break; 11923 } 11924 return rc; 11925 } 11926 11927 /** 11928 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 11929 * @pdev: pointer to PCI device. 11930 * @state: the current PCI connection state. 11931 * 11932 * This routine is registered to the PCI subsystem for error handling. This 11933 * function is called by the PCI subsystem after a PCI bus error affecting 11934 * this device has been detected. When this routine is invoked, it dispatches 11935 * the action to the proper SLI-3 or SLI-4 device error detected handling 11936 * routine, which will perform the proper error detected operation. 11937 * 11938 * Return codes 11939 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11940 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11941 **/ 11942 static pci_ers_result_t 11943 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 11944 { 11945 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11946 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11947 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 11948 11949 switch (phba->pci_dev_grp) { 11950 case LPFC_PCI_DEV_LP: 11951 rc = lpfc_io_error_detected_s3(pdev, state); 11952 break; 11953 case LPFC_PCI_DEV_OC: 11954 rc = lpfc_io_error_detected_s4(pdev, state); 11955 break; 11956 default: 11957 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11958 "1427 Invalid PCI device group: 0x%x\n", 11959 phba->pci_dev_grp); 11960 break; 11961 } 11962 return rc; 11963 } 11964 11965 /** 11966 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 11967 * @pdev: pointer to PCI device. 11968 * 11969 * This routine is registered to the PCI subsystem for error handling. This 11970 * function is called after PCI bus has been reset to restart the PCI card 11971 * from scratch, as if from a cold-boot. When this routine is invoked, it 11972 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 11973 * routine, which will perform the proper device reset. 11974 * 11975 * Return codes 11976 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11977 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11978 **/ 11979 static pci_ers_result_t 11980 lpfc_io_slot_reset(struct pci_dev *pdev) 11981 { 11982 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11983 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11984 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 11985 11986 switch (phba->pci_dev_grp) { 11987 case LPFC_PCI_DEV_LP: 11988 rc = lpfc_io_slot_reset_s3(pdev); 11989 break; 11990 case LPFC_PCI_DEV_OC: 11991 rc = lpfc_io_slot_reset_s4(pdev); 11992 break; 11993 default: 11994 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11995 "1428 Invalid PCI device group: 0x%x\n", 11996 phba->pci_dev_grp); 11997 break; 11998 } 11999 return rc; 12000 } 12001 12002 /** 12003 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 12004 * @pdev: pointer to PCI device 12005 * 12006 * This routine is registered to the PCI subsystem for error handling. It 12007 * is called when kernel error recovery tells the lpfc driver that it is 12008 * OK to resume normal PCI operation after PCI bus error recovery. When 12009 * this routine is invoked, it dispatches the action to the proper SLI-3 12010 * or SLI-4 device io_resume routine, which will resume the device operation. 12011 **/ 12012 static void 12013 lpfc_io_resume(struct pci_dev *pdev) 12014 { 12015 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12016 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12017 12018 switch (phba->pci_dev_grp) { 12019 case LPFC_PCI_DEV_LP: 12020 lpfc_io_resume_s3(pdev); 12021 break; 12022 case LPFC_PCI_DEV_OC: 12023 lpfc_io_resume_s4(pdev); 12024 break; 12025 default: 12026 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12027 "1429 Invalid PCI device group: 0x%x\n", 12028 phba->pci_dev_grp); 12029 break; 12030 } 12031 return; 12032 } 12033 12034 /** 12035 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter 12036 * @phba: pointer to lpfc hba data structure. 12037 * 12038 * This routine checks to see if OAS is supported for this adapter. If 12039 * supported, the configure Flash Optimized Fabric flag is set. Otherwise, 12040 * the enable oas flag is cleared and the pool created for OAS device data 12041 * is destroyed. 12042 * 12043 **/ 12044 void 12045 lpfc_sli4_oas_verify(struct lpfc_hba *phba) 12046 { 12047 12048 if (!phba->cfg_EnableXLane) 12049 return; 12050 12051 if (phba->sli4_hba.pc_sli4_params.oas_supported) { 12052 phba->cfg_fof = 1; 12053 } else { 12054 phba->cfg_fof = 0; 12055 if (phba->device_data_mem_pool) 12056 mempool_destroy(phba->device_data_mem_pool); 12057 phba->device_data_mem_pool = NULL; 12058 } 12059 12060 return; 12061 } 12062 12063 /** 12064 * lpfc_fof_queue_setup - Set up all the fof queues 12065 * @phba: pointer to lpfc hba data structure. 12066 * 12067 * This routine is invoked to set up all the fof queues for the FC HBA 12068 * operation. 12069 * 12070 * Return codes 12071 * 0 - successful 12072 * -ENOMEM - No available memory 12073 **/ 12074 int 12075 lpfc_fof_queue_setup(struct lpfc_hba *phba) 12076 { 12077 struct lpfc_sli_ring *pring; 12078 int rc; 12079 12080 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX); 12081 if (rc) 12082 return -ENOMEM; 12083 12084 if (phba->cfg_fof) { 12085 12086 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq, 12087 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP); 12088 if (rc) 12089 goto out_oas_cq; 12090 12091 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq, 12092 phba->sli4_hba.oas_cq, LPFC_FCP); 12093 if (rc) 12094 goto out_oas_wq; 12095 12096 /* Bind this CQ/WQ to the NVME ring */ 12097 pring = phba->sli4_hba.oas_wq->pring; 12098 pring->sli.sli4.wqp = 12099 (void *)phba->sli4_hba.oas_wq; 12100 phba->sli4_hba.oas_cq->pring = pring; 12101 } 12102 12103 return 0; 12104 12105 out_oas_wq: 12106 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq); 12107 out_oas_cq: 12108 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq); 12109 return rc; 12110 12111 } 12112 12113 /** 12114 * lpfc_fof_queue_create - Create all the fof queues 12115 * @phba: pointer to lpfc hba data structure. 12116 * 12117 * This routine is invoked to allocate all the fof queues for the FC HBA 12118 * operation. For each SLI4 queue type, the parameters such as queue entry 12119 * count (queue depth) shall be taken from the module parameter. For now, 12120 * we just use some constant number as place holder. 12121 * 12122 * Return codes 12123 * 0 - successful 12124 * -ENOMEM - No availble memory 12125 * -EIO - The mailbox failed to complete successfully. 12126 **/ 12127 int 12128 lpfc_fof_queue_create(struct lpfc_hba *phba) 12129 { 12130 struct lpfc_queue *qdesc; 12131 uint32_t wqesize; 12132 12133 /* Create FOF EQ */ 12134 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 12135 phba->sli4_hba.eq_ecount); 12136 if (!qdesc) 12137 goto out_error; 12138 12139 phba->sli4_hba.fof_eq = qdesc; 12140 12141 if (phba->cfg_fof) { 12142 12143 /* Create OAS CQ */ 12144 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 12145 phba->sli4_hba.cq_ecount); 12146 if (!qdesc) 12147 goto out_error; 12148 12149 phba->sli4_hba.oas_cq = qdesc; 12150 12151 /* Create OAS WQ */ 12152 wqesize = (phba->fcp_embed_io) ? 12153 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; 12154 qdesc = lpfc_sli4_queue_alloc(phba, wqesize, 12155 phba->sli4_hba.wq_ecount); 12156 12157 if (!qdesc) 12158 goto out_error; 12159 12160 phba->sli4_hba.oas_wq = qdesc; 12161 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 12162 12163 } 12164 return 0; 12165 12166 out_error: 12167 lpfc_fof_queue_destroy(phba); 12168 return -ENOMEM; 12169 } 12170 12171 /** 12172 * lpfc_fof_queue_destroy - Destroy all the fof queues 12173 * @phba: pointer to lpfc hba data structure. 12174 * 12175 * This routine is invoked to release all the SLI4 queues with the FC HBA 12176 * operation. 12177 * 12178 * Return codes 12179 * 0 - successful 12180 **/ 12181 int 12182 lpfc_fof_queue_destroy(struct lpfc_hba *phba) 12183 { 12184 /* Release FOF Event queue */ 12185 if (phba->sli4_hba.fof_eq != NULL) { 12186 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq); 12187 phba->sli4_hba.fof_eq = NULL; 12188 } 12189 12190 /* Release OAS Completion queue */ 12191 if (phba->sli4_hba.oas_cq != NULL) { 12192 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq); 12193 phba->sli4_hba.oas_cq = NULL; 12194 } 12195 12196 /* Release OAS Work queue */ 12197 if (phba->sli4_hba.oas_wq != NULL) { 12198 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq); 12199 phba->sli4_hba.oas_wq = NULL; 12200 } 12201 return 0; 12202 } 12203 12204 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 12205 12206 static const struct pci_error_handlers lpfc_err_handler = { 12207 .error_detected = lpfc_io_error_detected, 12208 .slot_reset = lpfc_io_slot_reset, 12209 .resume = lpfc_io_resume, 12210 }; 12211 12212 static struct pci_driver lpfc_driver = { 12213 .name = LPFC_DRIVER_NAME, 12214 .id_table = lpfc_id_table, 12215 .probe = lpfc_pci_probe_one, 12216 .remove = lpfc_pci_remove_one, 12217 .shutdown = lpfc_pci_remove_one, 12218 .suspend = lpfc_pci_suspend_one, 12219 .resume = lpfc_pci_resume_one, 12220 .err_handler = &lpfc_err_handler, 12221 }; 12222 12223 static const struct file_operations lpfc_mgmt_fop = { 12224 .owner = THIS_MODULE, 12225 }; 12226 12227 static struct miscdevice lpfc_mgmt_dev = { 12228 .minor = MISC_DYNAMIC_MINOR, 12229 .name = "lpfcmgmt", 12230 .fops = &lpfc_mgmt_fop, 12231 }; 12232 12233 /** 12234 * lpfc_init - lpfc module initialization routine 12235 * 12236 * This routine is to be invoked when the lpfc module is loaded into the 12237 * kernel. The special kernel macro module_init() is used to indicate the 12238 * role of this routine to the kernel as lpfc module entry point. 12239 * 12240 * Return codes 12241 * 0 - successful 12242 * -ENOMEM - FC attach transport failed 12243 * all others - failed 12244 */ 12245 static int __init 12246 lpfc_init(void) 12247 { 12248 int error = 0; 12249 12250 printk(LPFC_MODULE_DESC "\n"); 12251 printk(LPFC_COPYRIGHT "\n"); 12252 12253 error = misc_register(&lpfc_mgmt_dev); 12254 if (error) 12255 printk(KERN_ERR "Could not register lpfcmgmt device, " 12256 "misc_register returned with status %d", error); 12257 12258 lpfc_transport_functions.vport_create = lpfc_vport_create; 12259 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 12260 lpfc_transport_template = 12261 fc_attach_transport(&lpfc_transport_functions); 12262 if (lpfc_transport_template == NULL) 12263 return -ENOMEM; 12264 lpfc_vport_transport_template = 12265 fc_attach_transport(&lpfc_vport_transport_functions); 12266 if (lpfc_vport_transport_template == NULL) { 12267 fc_release_transport(lpfc_transport_template); 12268 return -ENOMEM; 12269 } 12270 12271 /* Initialize in case vector mapping is needed */ 12272 lpfc_used_cpu = NULL; 12273 lpfc_present_cpu = num_present_cpus(); 12274 12275 error = pci_register_driver(&lpfc_driver); 12276 if (error) { 12277 fc_release_transport(lpfc_transport_template); 12278 fc_release_transport(lpfc_vport_transport_template); 12279 } 12280 12281 return error; 12282 } 12283 12284 /** 12285 * lpfc_exit - lpfc module removal routine 12286 * 12287 * This routine is invoked when the lpfc module is removed from the kernel. 12288 * The special kernel macro module_exit() is used to indicate the role of 12289 * this routine to the kernel as lpfc module exit point. 12290 */ 12291 static void __exit 12292 lpfc_exit(void) 12293 { 12294 misc_deregister(&lpfc_mgmt_dev); 12295 pci_unregister_driver(&lpfc_driver); 12296 fc_release_transport(lpfc_transport_template); 12297 fc_release_transport(lpfc_vport_transport_template); 12298 if (_dump_buf_data) { 12299 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 12300 "_dump_buf_data at 0x%p\n", 12301 (1L << _dump_buf_data_order), _dump_buf_data); 12302 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 12303 } 12304 12305 if (_dump_buf_dif) { 12306 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 12307 "_dump_buf_dif at 0x%p\n", 12308 (1L << _dump_buf_dif_order), _dump_buf_dif); 12309 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 12310 } 12311 kfree(lpfc_used_cpu); 12312 idr_destroy(&lpfc_hba_index); 12313 } 12314 12315 module_init(lpfc_init); 12316 module_exit(lpfc_exit); 12317 MODULE_LICENSE("GPL"); 12318 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 12319 MODULE_AUTHOR("Broadcom"); 12320 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 12321