1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2008 Emulex. All rights reserved. * 5 * EMULEX and SLI are trademarks of Emulex. * 6 * www.emulex.com * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 8 * * 9 * This program is free software; you can redistribute it and/or * 10 * modify it under the terms of version 2 of the GNU General * 11 * Public License as published by the Free Software Foundation. * 12 * This program is distributed in the hope that it will be useful. * 13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 17 * TO BE LEGALLY INVALID. See the GNU General Public License for * 18 * more details, a copy of which can be found in the file COPYING * 19 * included with this package. * 20 *******************************************************************/ 21 22 #include <linux/blkdev.h> 23 #include <linux/pci.h> 24 #include <linux/interrupt.h> 25 26 #include <scsi/scsi_device.h> 27 #include <scsi/scsi_transport_fc.h> 28 29 #include <scsi/scsi.h> 30 31 #include "lpfc_hw.h" 32 #include "lpfc_sli.h" 33 #include "lpfc_nl.h" 34 #include "lpfc_disc.h" 35 #include "lpfc_scsi.h" 36 #include "lpfc.h" 37 #include "lpfc_logmsg.h" 38 #include "lpfc_crtn.h" 39 #include "lpfc_compat.h" 40 41 /** 42 * lpfc_dump_mem: Prepare a mailbox command for retrieving HBA's VPD memory. 43 * @phba: pointer to lpfc hba data structure. 44 * @pmb: pointer to the driver internal queue element for mailbox command. 45 * @offset: offset for dumping VPD memory mailbox command. 46 * 47 * The dump mailbox command provides a method for the device driver to obtain 48 * various types of information from the HBA device. 49 * 50 * This routine prepares the mailbox command for dumping HBA Vital Product 51 * Data (VPD) memory. This mailbox command is to be used for retrieving a 52 * portion (DMP_RSP_SIZE bytes) of a HBA's VPD from the HBA at an address 53 * offset specified by the offset parameter. 54 **/ 55 void 56 lpfc_dump_mem(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, uint16_t offset) 57 { 58 MAILBOX_t *mb; 59 void *ctx; 60 61 mb = &pmb->mb; 62 ctx = pmb->context2; 63 64 /* Setup to dump VPD region */ 65 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 66 mb->mbxCommand = MBX_DUMP_MEMORY; 67 mb->un.varDmp.cv = 1; 68 mb->un.varDmp.type = DMP_NV_PARAMS; 69 mb->un.varDmp.entry_index = offset; 70 mb->un.varDmp.region_id = DMP_REGION_VPD; 71 mb->un.varDmp.word_cnt = (DMP_RSP_SIZE / sizeof (uint32_t)); 72 mb->un.varDmp.co = 0; 73 mb->un.varDmp.resp_offset = 0; 74 pmb->context2 = ctx; 75 mb->mbxOwner = OWN_HOST; 76 return; 77 } 78 79 /** 80 * lpfc_read_nv: Prepare a mailbox command for reading HBA's NVRAM param. 81 * @phba: pointer to lpfc hba data structure. 82 * @pmb: pointer to the driver internal queue element for mailbox command. 83 * 84 * The read NVRAM mailbox command returns the HBA's non-volatile parameters 85 * that are used as defaults when the Fibre Channel link is brought on-line. 86 * 87 * This routine prepares the mailbox command for reading information stored 88 * in the HBA's NVRAM. Specifically, the HBA's WWNN and WWPN. 89 **/ 90 void 91 lpfc_read_nv(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 92 { 93 MAILBOX_t *mb; 94 95 mb = &pmb->mb; 96 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 97 mb->mbxCommand = MBX_READ_NV; 98 mb->mbxOwner = OWN_HOST; 99 return; 100 } 101 102 /** 103 * lpfc_config_async: Prepare a mailbox command for enabling HBA async event. 104 * @phba: pointer to lpfc hba data structure. 105 * @pmb: pointer to the driver internal queue element for mailbox command. 106 * @ring: ring number for the asynchronous event to be configured. 107 * 108 * The asynchronous event enable mailbox command is used to enable the 109 * asynchronous event posting via the ASYNC_STATUS_CN IOCB response and 110 * specifies the default ring to which events are posted. 111 * 112 * This routine prepares the mailbox command for enabling HBA asynchronous 113 * event support on a IOCB ring. 114 **/ 115 void 116 lpfc_config_async(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, 117 uint32_t ring) 118 { 119 MAILBOX_t *mb; 120 121 mb = &pmb->mb; 122 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 123 mb->mbxCommand = MBX_ASYNCEVT_ENABLE; 124 mb->un.varCfgAsyncEvent.ring = ring; 125 mb->mbxOwner = OWN_HOST; 126 return; 127 } 128 129 /** 130 * lpfc_heart_beat: Prepare a mailbox command for heart beat. 131 * @phba: pointer to lpfc hba data structure. 132 * @pmb: pointer to the driver internal queue element for mailbox command. 133 * 134 * The heart beat mailbox command is used to detect an unresponsive HBA, which 135 * is defined as any device where no error attention is sent and both mailbox 136 * and rings are not processed. 137 * 138 * This routine prepares the mailbox command for issuing a heart beat in the 139 * form of mailbox command to the HBA. The timely completion of the heart 140 * beat mailbox command indicates the health of the HBA. 141 **/ 142 void 143 lpfc_heart_beat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 144 { 145 MAILBOX_t *mb; 146 147 mb = &pmb->mb; 148 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 149 mb->mbxCommand = MBX_HEARTBEAT; 150 mb->mbxOwner = OWN_HOST; 151 return; 152 } 153 154 /** 155 * lpfc_read_la: Prepare a mailbox command for reading HBA link attention. 156 * @phba: pointer to lpfc hba data structure. 157 * @pmb: pointer to the driver internal queue element for mailbox command. 158 * @mp: DMA buffer memory for reading the link attention information into. 159 * 160 * The read link attention mailbox command is issued to read the Link Event 161 * Attention information indicated by the HBA port when the Link Event bit 162 * of the Host Attention (HSTATT) register is set to 1. A Link Event 163 * Attention occurs based on an exception detected at the Fibre Channel link 164 * interface. 165 * 166 * This routine prepares the mailbox command for reading HBA link attention 167 * information. A DMA memory has been set aside and address passed to the 168 * HBA through @mp for the HBA to DMA link attention information into the 169 * memory as part of the execution of the mailbox command. 170 * 171 * Return codes 172 * 0 - Success (currently always return 0) 173 **/ 174 int 175 lpfc_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, struct lpfc_dmabuf *mp) 176 { 177 MAILBOX_t *mb; 178 struct lpfc_sli *psli; 179 180 psli = &phba->sli; 181 mb = &pmb->mb; 182 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 183 184 INIT_LIST_HEAD(&mp->list); 185 mb->mbxCommand = MBX_READ_LA64; 186 mb->un.varReadLA.un.lilpBde64.tus.f.bdeSize = 128; 187 mb->un.varReadLA.un.lilpBde64.addrHigh = putPaddrHigh(mp->phys); 188 mb->un.varReadLA.un.lilpBde64.addrLow = putPaddrLow(mp->phys); 189 190 /* Save address for later completion and set the owner to host so that 191 * the FW knows this mailbox is available for processing. 192 */ 193 pmb->context1 = (uint8_t *) mp; 194 mb->mbxOwner = OWN_HOST; 195 return (0); 196 } 197 198 /** 199 * lpfc_clear_la: Prepare a mailbox command for clearing HBA link attention. 200 * @phba: pointer to lpfc hba data structure. 201 * @pmb: pointer to the driver internal queue element for mailbox command. 202 * 203 * The clear link attention mailbox command is issued to clear the link event 204 * attention condition indicated by the Link Event bit of the Host Attention 205 * (HSTATT) register. The link event attention condition is cleared only if 206 * the event tag specified matches that of the current link event counter. 207 * The current event tag is read using the read link attention event mailbox 208 * command. 209 * 210 * This routine prepares the mailbox command for clearing HBA link attention 211 * information. 212 **/ 213 void 214 lpfc_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 215 { 216 MAILBOX_t *mb; 217 218 mb = &pmb->mb; 219 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 220 221 mb->un.varClearLA.eventTag = phba->fc_eventTag; 222 mb->mbxCommand = MBX_CLEAR_LA; 223 mb->mbxOwner = OWN_HOST; 224 return; 225 } 226 227 /** 228 * lpfc_config_link: Prepare a mailbox command for configuring link on a HBA. 229 * @phba: pointer to lpfc hba data structure. 230 * @pmb: pointer to the driver internal queue element for mailbox command. 231 * 232 * The configure link mailbox command is used before the initialize link 233 * mailbox command to override default value and to configure link-oriented 234 * parameters such as DID address and various timers. Typically, this 235 * command would be used after an F_Port login to set the returned DID address 236 * and the fabric timeout values. This command is not valid before a configure 237 * port command has configured the HBA port. 238 * 239 * This routine prepares the mailbox command for configuring link on a HBA. 240 **/ 241 void 242 lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 243 { 244 struct lpfc_vport *vport = phba->pport; 245 MAILBOX_t *mb = &pmb->mb; 246 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 247 248 /* NEW_FEATURE 249 * SLI-2, Coalescing Response Feature. 250 */ 251 if (phba->cfg_cr_delay) { 252 mb->un.varCfgLnk.cr = 1; 253 mb->un.varCfgLnk.ci = 1; 254 mb->un.varCfgLnk.cr_delay = phba->cfg_cr_delay; 255 mb->un.varCfgLnk.cr_count = phba->cfg_cr_count; 256 } 257 258 mb->un.varCfgLnk.myId = vport->fc_myDID; 259 mb->un.varCfgLnk.edtov = phba->fc_edtov; 260 mb->un.varCfgLnk.arbtov = phba->fc_arbtov; 261 mb->un.varCfgLnk.ratov = phba->fc_ratov; 262 mb->un.varCfgLnk.rttov = phba->fc_rttov; 263 mb->un.varCfgLnk.altov = phba->fc_altov; 264 mb->un.varCfgLnk.crtov = phba->fc_crtov; 265 mb->un.varCfgLnk.citov = phba->fc_citov; 266 267 if (phba->cfg_ack0) 268 mb->un.varCfgLnk.ack0_enable = 1; 269 270 mb->mbxCommand = MBX_CONFIG_LINK; 271 mb->mbxOwner = OWN_HOST; 272 return; 273 } 274 275 /** 276 * lpfc_config_msi: Prepare a mailbox command for configuring msi-x. 277 * @phba: pointer to lpfc hba data structure. 278 * @pmb: pointer to the driver internal queue element for mailbox command. 279 * 280 * The configure MSI-X mailbox command is used to configure the HBA's SLI-3 281 * MSI-X multi-message interrupt vector association to interrupt attention 282 * conditions. 283 * 284 * Return codes 285 * 0 - Success 286 * -EINVAL - Failure 287 **/ 288 int 289 lpfc_config_msi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 290 { 291 MAILBOX_t *mb = &pmb->mb; 292 uint32_t attentionConditions[2]; 293 294 /* Sanity check */ 295 if (phba->cfg_use_msi != 2) { 296 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 297 "0475 Not configured for supporting MSI-X " 298 "cfg_use_msi: 0x%x\n", phba->cfg_use_msi); 299 return -EINVAL; 300 } 301 302 if (phba->sli_rev < 3) { 303 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 304 "0476 HBA not supporting SLI-3 or later " 305 "SLI Revision: 0x%x\n", phba->sli_rev); 306 return -EINVAL; 307 } 308 309 /* Clear mailbox command fields */ 310 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 311 312 /* 313 * SLI-3, Message Signaled Interrupt Fearure. 314 */ 315 316 /* Multi-message attention configuration */ 317 attentionConditions[0] = (HA_R0ATT | HA_R1ATT | HA_R2ATT | HA_ERATT | 318 HA_LATT | HA_MBATT); 319 attentionConditions[1] = 0; 320 321 mb->un.varCfgMSI.attentionConditions[0] = attentionConditions[0]; 322 mb->un.varCfgMSI.attentionConditions[1] = attentionConditions[1]; 323 324 /* 325 * Set up message number to HA bit association 326 */ 327 #ifdef __BIG_ENDIAN_BITFIELD 328 /* RA0 (FCP Ring) */ 329 mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS] = 1; 330 /* RA1 (Other Protocol Extra Ring) */ 331 mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS] = 1; 332 #else /* __LITTLE_ENDIAN_BITFIELD */ 333 /* RA0 (FCP Ring) */ 334 mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS^3] = 1; 335 /* RA1 (Other Protocol Extra Ring) */ 336 mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS^3] = 1; 337 #endif 338 /* Multi-message interrupt autoclear configuration*/ 339 mb->un.varCfgMSI.autoClearHA[0] = attentionConditions[0]; 340 mb->un.varCfgMSI.autoClearHA[1] = attentionConditions[1]; 341 342 /* For now, HBA autoclear does not work reliably, disable it */ 343 mb->un.varCfgMSI.autoClearHA[0] = 0; 344 mb->un.varCfgMSI.autoClearHA[1] = 0; 345 346 /* Set command and owner bit */ 347 mb->mbxCommand = MBX_CONFIG_MSI; 348 mb->mbxOwner = OWN_HOST; 349 350 return 0; 351 } 352 353 /** 354 * lpfc_init_link: Prepare a mailbox command for initialize link on a HBA. 355 * @phba: pointer to lpfc hba data structure. 356 * @pmb: pointer to the driver internal queue element for mailbox command. 357 * @topology: the link topology for the link to be initialized to. 358 * @linkspeed: the link speed for the link to be initialized to. 359 * 360 * The initialize link mailbox command is used to initialize the Fibre 361 * Channel link. This command must follow a configure port command that 362 * establishes the mode of operation. 363 * 364 * This routine prepares the mailbox command for initializing link on a HBA 365 * with the specified link topology and speed. 366 **/ 367 void 368 lpfc_init_link(struct lpfc_hba * phba, 369 LPFC_MBOXQ_t * pmb, uint32_t topology, uint32_t linkspeed) 370 { 371 lpfc_vpd_t *vpd; 372 struct lpfc_sli *psli; 373 MAILBOX_t *mb; 374 375 mb = &pmb->mb; 376 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 377 378 psli = &phba->sli; 379 switch (topology) { 380 case FLAGS_TOPOLOGY_MODE_LOOP_PT: 381 mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP; 382 mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER; 383 break; 384 case FLAGS_TOPOLOGY_MODE_PT_PT: 385 mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT; 386 break; 387 case FLAGS_TOPOLOGY_MODE_LOOP: 388 mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP; 389 break; 390 case FLAGS_TOPOLOGY_MODE_PT_LOOP: 391 mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT; 392 mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER; 393 break; 394 case FLAGS_LOCAL_LB: 395 mb->un.varInitLnk.link_flags = FLAGS_LOCAL_LB; 396 break; 397 } 398 399 /* Enable asynchronous ABTS responses from firmware */ 400 mb->un.varInitLnk.link_flags |= FLAGS_IMED_ABORT; 401 402 /* NEW_FEATURE 403 * Setting up the link speed 404 */ 405 vpd = &phba->vpd; 406 if (vpd->rev.feaLevelHigh >= 0x02){ 407 switch(linkspeed){ 408 case LINK_SPEED_1G: 409 case LINK_SPEED_2G: 410 case LINK_SPEED_4G: 411 case LINK_SPEED_8G: 412 mb->un.varInitLnk.link_flags |= 413 FLAGS_LINK_SPEED; 414 mb->un.varInitLnk.link_speed = linkspeed; 415 break; 416 case LINK_SPEED_AUTO: 417 default: 418 mb->un.varInitLnk.link_speed = 419 LINK_SPEED_AUTO; 420 break; 421 } 422 423 } 424 else 425 mb->un.varInitLnk.link_speed = LINK_SPEED_AUTO; 426 427 mb->mbxCommand = (volatile uint8_t)MBX_INIT_LINK; 428 mb->mbxOwner = OWN_HOST; 429 mb->un.varInitLnk.fabric_AL_PA = phba->fc_pref_ALPA; 430 return; 431 } 432 433 /** 434 * lpfc_read_sparam: Prepare a mailbox command for reading HBA parameters. 435 * @phba: pointer to lpfc hba data structure. 436 * @pmb: pointer to the driver internal queue element for mailbox command. 437 * @vpi: virtual N_Port identifier. 438 * 439 * The read service parameter mailbox command is used to read the HBA port 440 * service parameters. The service parameters are read into the buffer 441 * specified directly by a BDE in the mailbox command. These service 442 * parameters may then be used to build the payload of an N_Port/F_POrt 443 * login request and reply (LOGI/ACC). 444 * 445 * This routine prepares the mailbox command for reading HBA port service 446 * parameters. The DMA memory is allocated in this function and the addresses 447 * are populated into the mailbox command for the HBA to DMA the service 448 * parameters into. 449 * 450 * Return codes 451 * 0 - Success 452 * 1 - DMA memory allocation failed 453 **/ 454 int 455 lpfc_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, int vpi) 456 { 457 struct lpfc_dmabuf *mp; 458 MAILBOX_t *mb; 459 struct lpfc_sli *psli; 460 461 psli = &phba->sli; 462 mb = &pmb->mb; 463 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 464 465 mb->mbxOwner = OWN_HOST; 466 467 /* Get a buffer to hold the HBAs Service Parameters */ 468 469 mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 470 if (mp) 471 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 472 if (!mp || !mp->virt) { 473 kfree(mp); 474 mb->mbxCommand = MBX_READ_SPARM64; 475 /* READ_SPARAM: no buffers */ 476 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 477 "0301 READ_SPARAM: no buffers\n"); 478 return (1); 479 } 480 INIT_LIST_HEAD(&mp->list); 481 mb->mbxCommand = MBX_READ_SPARM64; 482 mb->un.varRdSparm.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm); 483 mb->un.varRdSparm.un.sp64.addrHigh = putPaddrHigh(mp->phys); 484 mb->un.varRdSparm.un.sp64.addrLow = putPaddrLow(mp->phys); 485 mb->un.varRdSparm.vpi = vpi; 486 487 /* save address for completion */ 488 pmb->context1 = mp; 489 490 return (0); 491 } 492 493 /** 494 * lpfc_unreg_did: Prepare a mailbox command for unregistering DID. 495 * @phba: pointer to lpfc hba data structure. 496 * @vpi: virtual N_Port identifier. 497 * @did: remote port identifier. 498 * @pmb: pointer to the driver internal queue element for mailbox command. 499 * 500 * The unregister DID mailbox command is used to unregister an N_Port/F_Port 501 * login for an unknown RPI by specifying the DID of a remote port. This 502 * command frees an RPI context in the HBA port. This has the effect of 503 * performing an implicit N_Port/F_Port logout. 504 * 505 * This routine prepares the mailbox command for unregistering a remote 506 * N_Port/F_Port (DID) login. 507 **/ 508 void 509 lpfc_unreg_did(struct lpfc_hba * phba, uint16_t vpi, uint32_t did, 510 LPFC_MBOXQ_t * pmb) 511 { 512 MAILBOX_t *mb; 513 514 mb = &pmb->mb; 515 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 516 517 mb->un.varUnregDID.did = did; 518 mb->un.varUnregDID.vpi = vpi; 519 520 mb->mbxCommand = MBX_UNREG_D_ID; 521 mb->mbxOwner = OWN_HOST; 522 return; 523 } 524 525 /** 526 * lpfc_read_config: Prepare a mailbox command for reading HBA configuration. 527 * @phba: pointer to lpfc hba data structure. 528 * @pmb: pointer to the driver internal queue element for mailbox command. 529 * 530 * The read configuration mailbox command is used to read the HBA port 531 * configuration parameters. This mailbox command provides a method for 532 * seeing any parameters that may have changed via various configuration 533 * mailbox commands. 534 * 535 * This routine prepares the mailbox command for reading out HBA configuration 536 * parameters. 537 **/ 538 void 539 lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 540 { 541 MAILBOX_t *mb; 542 543 mb = &pmb->mb; 544 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 545 546 mb->mbxCommand = MBX_READ_CONFIG; 547 mb->mbxOwner = OWN_HOST; 548 return; 549 } 550 551 /** 552 * lpfc_read_lnk_stat: Prepare a mailbox command for reading HBA link stats. 553 * @phba: pointer to lpfc hba data structure. 554 * @pmb: pointer to the driver internal queue element for mailbox command. 555 * 556 * The read link status mailbox command is used to read the link status from 557 * the HBA. Link status includes all link-related error counters. These 558 * counters are maintained by the HBA and originated in the link hardware 559 * unit. Note that all of these counters wrap. 560 * 561 * This routine prepares the mailbox command for reading out HBA link status. 562 **/ 563 void 564 lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 565 { 566 MAILBOX_t *mb; 567 568 mb = &pmb->mb; 569 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 570 571 mb->mbxCommand = MBX_READ_LNK_STAT; 572 mb->mbxOwner = OWN_HOST; 573 return; 574 } 575 576 /** 577 * lpfc_reg_login: Prepare a mailbox command for registering remote login. 578 * @phba: pointer to lpfc hba data structure. 579 * @vpi: virtual N_Port identifier. 580 * @did: remote port identifier. 581 * @param: pointer to memory holding the server parameters. 582 * @pmb: pointer to the driver internal queue element for mailbox command. 583 * @flag: action flag to be passed back for the complete function. 584 * 585 * The registration login mailbox command is used to register an N_Port or 586 * F_Port login. This registration allows the HBA to cache the remote N_Port 587 * service parameters internally and thereby make the appropriate FC-2 588 * decisions. The remote port service parameters are handed off by the driver 589 * to the HBA using a descriptor entry that directly identifies a buffer in 590 * host memory. In exchange, the HBA returns an RPI identifier. 591 * 592 * This routine prepares the mailbox command for registering remote port login. 593 * The function allocates DMA buffer for passing the service parameters to the 594 * HBA with the mailbox command. 595 * 596 * Return codes 597 * 0 - Success 598 * 1 - DMA memory allocation failed 599 **/ 600 int 601 lpfc_reg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t did, 602 uint8_t *param, LPFC_MBOXQ_t *pmb, uint32_t flag) 603 { 604 MAILBOX_t *mb = &pmb->mb; 605 uint8_t *sparam; 606 struct lpfc_dmabuf *mp; 607 608 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 609 610 mb->un.varRegLogin.rpi = 0; 611 mb->un.varRegLogin.vpi = vpi; 612 mb->un.varRegLogin.did = did; 613 mb->un.varWords[30] = flag; /* Set flag to issue action on cmpl */ 614 615 mb->mbxOwner = OWN_HOST; 616 617 /* Get a buffer to hold NPorts Service Parameters */ 618 mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 619 if (mp) 620 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 621 if (!mp || !mp->virt) { 622 kfree(mp); 623 mb->mbxCommand = MBX_REG_LOGIN64; 624 /* REG_LOGIN: no buffers */ 625 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 626 "0302 REG_LOGIN: no buffers, VPI:%d DID:x%x, " 627 "flag x%x\n", vpi, did, flag); 628 return (1); 629 } 630 INIT_LIST_HEAD(&mp->list); 631 sparam = mp->virt; 632 633 /* Copy param's into a new buffer */ 634 memcpy(sparam, param, sizeof (struct serv_parm)); 635 636 /* save address for completion */ 637 pmb->context1 = (uint8_t *) mp; 638 639 mb->mbxCommand = MBX_REG_LOGIN64; 640 mb->un.varRegLogin.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm); 641 mb->un.varRegLogin.un.sp64.addrHigh = putPaddrHigh(mp->phys); 642 mb->un.varRegLogin.un.sp64.addrLow = putPaddrLow(mp->phys); 643 644 return (0); 645 } 646 647 /** 648 * lpfc_unreg_login: Prepare a mailbox command for unregistering remote login. 649 * @phba: pointer to lpfc hba data structure. 650 * @vpi: virtual N_Port identifier. 651 * @rpi: remote port identifier 652 * @pmb: pointer to the driver internal queue element for mailbox command. 653 * 654 * The unregistration login mailbox command is used to unregister an N_Port 655 * or F_Port login. This command frees an RPI context in the HBA. It has the 656 * effect of performing an implicit N_Port/F_Port logout. 657 * 658 * This routine prepares the mailbox command for unregistering remote port 659 * login. 660 **/ 661 void 662 lpfc_unreg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t rpi, 663 LPFC_MBOXQ_t * pmb) 664 { 665 MAILBOX_t *mb; 666 667 mb = &pmb->mb; 668 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 669 670 mb->un.varUnregLogin.rpi = (uint16_t) rpi; 671 mb->un.varUnregLogin.rsvd1 = 0; 672 mb->un.varUnregLogin.vpi = vpi; 673 674 mb->mbxCommand = MBX_UNREG_LOGIN; 675 mb->mbxOwner = OWN_HOST; 676 return; 677 } 678 679 /** 680 * lpfc_reg_vpi: Prepare a mailbox command for registering vport identifier. 681 * @phba: pointer to lpfc hba data structure. 682 * @vpi: virtual N_Port identifier. 683 * @sid: Fibre Channel S_ID (N_Port_ID assigned to a virtual N_Port). 684 * @pmb: pointer to the driver internal queue element for mailbox command. 685 * 686 * The registration vport identifier mailbox command is used to activate a 687 * virtual N_Port after it has acquired an N_Port_ID. The HBA validates the 688 * N_Port_ID against the information in the selected virtual N_Port context 689 * block and marks it active to allow normal processing of IOCB commands and 690 * received unsolicited exchanges. 691 * 692 * This routine prepares the mailbox command for registering a virtual N_Port. 693 **/ 694 void 695 lpfc_reg_vpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t sid, 696 LPFC_MBOXQ_t *pmb) 697 { 698 MAILBOX_t *mb = &pmb->mb; 699 700 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 701 702 mb->un.varRegVpi.vpi = vpi; 703 mb->un.varRegVpi.sid = sid; 704 705 mb->mbxCommand = MBX_REG_VPI; 706 mb->mbxOwner = OWN_HOST; 707 return; 708 709 } 710 711 /** 712 * lpfc_unreg_vpi: Prepare a mailbox command for unregistering vport id. 713 * @phba: pointer to lpfc hba data structure. 714 * @vpi: virtual N_Port identifier. 715 * @pmb: pointer to the driver internal queue element for mailbox command. 716 * 717 * The unregistration vport identifier mailbox command is used to inactivate 718 * a virtual N_Port. The driver must have logged out and unregistered all 719 * remote N_Ports to abort any activity on the virtual N_Port. The HBA will 720 * unregisters any default RPIs associated with the specified vpi, aborting 721 * any active exchanges. The HBA will post the mailbox response after making 722 * the virtual N_Port inactive. 723 * 724 * This routine prepares the mailbox command for unregistering a virtual 725 * N_Port. 726 **/ 727 void 728 lpfc_unreg_vpi(struct lpfc_hba *phba, uint16_t vpi, LPFC_MBOXQ_t *pmb) 729 { 730 MAILBOX_t *mb = &pmb->mb; 731 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 732 733 mb->un.varUnregVpi.vpi = vpi; 734 735 mb->mbxCommand = MBX_UNREG_VPI; 736 mb->mbxOwner = OWN_HOST; 737 return; 738 739 } 740 741 /** 742 * lpfc_config_pcb_setup: Set up IOCB rings in the Port Control Block (PCB) 743 * @phba: pointer to lpfc hba data structure. 744 * 745 * This routine sets up and initializes the IOCB rings in the Port Control 746 * Block (PCB). 747 **/ 748 static void 749 lpfc_config_pcb_setup(struct lpfc_hba * phba) 750 { 751 struct lpfc_sli *psli = &phba->sli; 752 struct lpfc_sli_ring *pring; 753 PCB_t *pcbp = phba->pcb; 754 dma_addr_t pdma_addr; 755 uint32_t offset; 756 uint32_t iocbCnt = 0; 757 int i; 758 759 pcbp->maxRing = (psli->num_rings - 1); 760 761 for (i = 0; i < psli->num_rings; i++) { 762 pring = &psli->ring[i]; 763 764 pring->sizeCiocb = phba->sli_rev == 3 ? SLI3_IOCB_CMD_SIZE: 765 SLI2_IOCB_CMD_SIZE; 766 pring->sizeRiocb = phba->sli_rev == 3 ? SLI3_IOCB_RSP_SIZE: 767 SLI2_IOCB_RSP_SIZE; 768 /* A ring MUST have both cmd and rsp entries defined to be 769 valid */ 770 if ((pring->numCiocb == 0) || (pring->numRiocb == 0)) { 771 pcbp->rdsc[i].cmdEntries = 0; 772 pcbp->rdsc[i].rspEntries = 0; 773 pcbp->rdsc[i].cmdAddrHigh = 0; 774 pcbp->rdsc[i].rspAddrHigh = 0; 775 pcbp->rdsc[i].cmdAddrLow = 0; 776 pcbp->rdsc[i].rspAddrLow = 0; 777 pring->cmdringaddr = NULL; 778 pring->rspringaddr = NULL; 779 continue; 780 } 781 /* Command ring setup for ring */ 782 pring->cmdringaddr = (void *)&phba->IOCBs[iocbCnt]; 783 pcbp->rdsc[i].cmdEntries = pring->numCiocb; 784 785 offset = (uint8_t *) &phba->IOCBs[iocbCnt] - 786 (uint8_t *) phba->slim2p.virt; 787 pdma_addr = phba->slim2p.phys + offset; 788 pcbp->rdsc[i].cmdAddrHigh = putPaddrHigh(pdma_addr); 789 pcbp->rdsc[i].cmdAddrLow = putPaddrLow(pdma_addr); 790 iocbCnt += pring->numCiocb; 791 792 /* Response ring setup for ring */ 793 pring->rspringaddr = (void *) &phba->IOCBs[iocbCnt]; 794 795 pcbp->rdsc[i].rspEntries = pring->numRiocb; 796 offset = (uint8_t *)&phba->IOCBs[iocbCnt] - 797 (uint8_t *)phba->slim2p.virt; 798 pdma_addr = phba->slim2p.phys + offset; 799 pcbp->rdsc[i].rspAddrHigh = putPaddrHigh(pdma_addr); 800 pcbp->rdsc[i].rspAddrLow = putPaddrLow(pdma_addr); 801 iocbCnt += pring->numRiocb; 802 } 803 } 804 805 /** 806 * lpfc_read_rev: Prepare a mailbox command for reading HBA revision. 807 * @phba: pointer to lpfc hba data structure. 808 * @pmb: pointer to the driver internal queue element for mailbox command. 809 * 810 * The read revision mailbox command is used to read the revision levels of 811 * the HBA components. These components include hardware units, resident 812 * firmware, and available firmware. HBAs that supports SLI-3 mode of 813 * operation provide different response information depending on the version 814 * requested by the driver. 815 * 816 * This routine prepares the mailbox command for reading HBA revision 817 * information. 818 **/ 819 void 820 lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 821 { 822 MAILBOX_t *mb = &pmb->mb; 823 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 824 mb->un.varRdRev.cv = 1; 825 mb->un.varRdRev.v3req = 1; /* Request SLI3 info */ 826 mb->mbxCommand = MBX_READ_REV; 827 mb->mbxOwner = OWN_HOST; 828 return; 829 } 830 831 /** 832 * lpfc_build_hbq_profile2: Set up the HBQ Selection Profile 2. 833 * @hbqmb: pointer to the HBQ configuration data structure in mailbox command. 834 * @hbq_desc: pointer to the HBQ selection profile descriptor. 835 * 836 * The Host Buffer Queue (HBQ) Selection Profile 2 specifies that the HBA 837 * tests the incoming frames' R_CTL/TYPE fields with works 10:15 and performs 838 * the Sequence Length Test using the fields in the Selection Profile 2 839 * extension in words 20:31. 840 **/ 841 static void 842 lpfc_build_hbq_profile2(struct config_hbq_var *hbqmb, 843 struct lpfc_hbq_init *hbq_desc) 844 { 845 hbqmb->profiles.profile2.seqlenbcnt = hbq_desc->seqlenbcnt; 846 hbqmb->profiles.profile2.maxlen = hbq_desc->maxlen; 847 hbqmb->profiles.profile2.seqlenoff = hbq_desc->seqlenoff; 848 } 849 850 /** 851 * lpfc_build_hbq_profile3: Set up the HBQ Selection Profile 3. 852 * @hbqmb: pointer to the HBQ configuration data structure in mailbox command. 853 * @hbq_desc: pointer to the HBQ selection profile descriptor. 854 * 855 * The Host Buffer Queue (HBQ) Selection Profile 3 specifies that the HBA 856 * tests the incoming frame's R_CTL/TYPE fields with words 10:15 and performs 857 * the Sequence Length Test and Byte Field Test using the fields in the 858 * Selection Profile 3 extension in words 20:31. 859 **/ 860 static void 861 lpfc_build_hbq_profile3(struct config_hbq_var *hbqmb, 862 struct lpfc_hbq_init *hbq_desc) 863 { 864 hbqmb->profiles.profile3.seqlenbcnt = hbq_desc->seqlenbcnt; 865 hbqmb->profiles.profile3.maxlen = hbq_desc->maxlen; 866 hbqmb->profiles.profile3.cmdcodeoff = hbq_desc->cmdcodeoff; 867 hbqmb->profiles.profile3.seqlenoff = hbq_desc->seqlenoff; 868 memcpy(&hbqmb->profiles.profile3.cmdmatch, hbq_desc->cmdmatch, 869 sizeof(hbqmb->profiles.profile3.cmdmatch)); 870 } 871 872 /** 873 * lpfc_build_hbq_profile5: Set up the HBQ Selection Profile 5. 874 * @hbqmb: pointer to the HBQ configuration data structure in mailbox command. 875 * @hbq_desc: pointer to the HBQ selection profile descriptor. 876 * 877 * The Host Buffer Queue (HBQ) Selection Profile 5 specifies a header HBQ. The 878 * HBA tests the initial frame of an incoming sequence using the frame's 879 * R_CTL/TYPE fields with words 10:15 and performs the Sequence Length Test 880 * and Byte Field Test using the fields in the Selection Profile 5 extension 881 * words 20:31. 882 **/ 883 static void 884 lpfc_build_hbq_profile5(struct config_hbq_var *hbqmb, 885 struct lpfc_hbq_init *hbq_desc) 886 { 887 hbqmb->profiles.profile5.seqlenbcnt = hbq_desc->seqlenbcnt; 888 hbqmb->profiles.profile5.maxlen = hbq_desc->maxlen; 889 hbqmb->profiles.profile5.cmdcodeoff = hbq_desc->cmdcodeoff; 890 hbqmb->profiles.profile5.seqlenoff = hbq_desc->seqlenoff; 891 memcpy(&hbqmb->profiles.profile5.cmdmatch, hbq_desc->cmdmatch, 892 sizeof(hbqmb->profiles.profile5.cmdmatch)); 893 } 894 895 /** 896 * lpfc_config_hbq: Prepare a mailbox command for configuring an HBQ. 897 * @phba: pointer to lpfc hba data structure. 898 * @id: HBQ identifier. 899 * @hbq_desc: pointer to the HBA descriptor data structure. 900 * @hbq_entry_index: index of the HBQ entry data structures. 901 * @pmb: pointer to the driver internal queue element for mailbox command. 902 * 903 * The configure HBQ (Host Buffer Queue) mailbox command is used to configure 904 * an HBQ. The configuration binds events that require buffers to a particular 905 * ring and HBQ based on a selection profile. 906 * 907 * This routine prepares the mailbox command for configuring an HBQ. 908 **/ 909 void 910 lpfc_config_hbq(struct lpfc_hba *phba, uint32_t id, 911 struct lpfc_hbq_init *hbq_desc, 912 uint32_t hbq_entry_index, LPFC_MBOXQ_t *pmb) 913 { 914 int i; 915 MAILBOX_t *mb = &pmb->mb; 916 struct config_hbq_var *hbqmb = &mb->un.varCfgHbq; 917 918 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 919 hbqmb->hbqId = id; 920 hbqmb->entry_count = hbq_desc->entry_count; /* # entries in HBQ */ 921 hbqmb->recvNotify = hbq_desc->rn; /* Receive 922 * Notification */ 923 hbqmb->numMask = hbq_desc->mask_count; /* # R_CTL/TYPE masks 924 * # in words 0-19 */ 925 hbqmb->profile = hbq_desc->profile; /* Selection profile: 926 * 0 = all, 927 * 7 = logentry */ 928 hbqmb->ringMask = hbq_desc->ring_mask; /* Binds HBQ to a ring 929 * e.g. Ring0=b0001, 930 * ring2=b0100 */ 931 hbqmb->headerLen = hbq_desc->headerLen; /* 0 if not profile 4 932 * or 5 */ 933 hbqmb->logEntry = hbq_desc->logEntry; /* Set to 1 if this 934 * HBQ will be used 935 * for LogEntry 936 * buffers */ 937 hbqmb->hbqaddrLow = putPaddrLow(phba->hbqslimp.phys) + 938 hbq_entry_index * sizeof(struct lpfc_hbq_entry); 939 hbqmb->hbqaddrHigh = putPaddrHigh(phba->hbqslimp.phys); 940 941 mb->mbxCommand = MBX_CONFIG_HBQ; 942 mb->mbxOwner = OWN_HOST; 943 944 /* Copy info for profiles 2,3,5. Other 945 * profiles this area is reserved 946 */ 947 if (hbq_desc->profile == 2) 948 lpfc_build_hbq_profile2(hbqmb, hbq_desc); 949 else if (hbq_desc->profile == 3) 950 lpfc_build_hbq_profile3(hbqmb, hbq_desc); 951 else if (hbq_desc->profile == 5) 952 lpfc_build_hbq_profile5(hbqmb, hbq_desc); 953 954 /* Return if no rctl / type masks for this HBQ */ 955 if (!hbq_desc->mask_count) 956 return; 957 958 /* Otherwise we setup specific rctl / type masks for this HBQ */ 959 for (i = 0; i < hbq_desc->mask_count; i++) { 960 hbqmb->hbqMasks[i].tmatch = hbq_desc->hbqMasks[i].tmatch; 961 hbqmb->hbqMasks[i].tmask = hbq_desc->hbqMasks[i].tmask; 962 hbqmb->hbqMasks[i].rctlmatch = hbq_desc->hbqMasks[i].rctlmatch; 963 hbqmb->hbqMasks[i].rctlmask = hbq_desc->hbqMasks[i].rctlmask; 964 } 965 966 return; 967 } 968 969 /** 970 * lpfc_config_ring: Prepare a mailbox command for configuring an IOCB ring. 971 * @phba: pointer to lpfc hba data structure. 972 * @ring: 973 * @pmb: pointer to the driver internal queue element for mailbox command. 974 * 975 * The configure ring mailbox command is used to configure an IOCB ring. This 976 * configuration binds from one to six of HBA RC_CTL/TYPE mask entries to the 977 * ring. This is used to map incoming sequences to a particular ring whose 978 * RC_CTL/TYPE mask entry matches that of the sequence. The driver should not 979 * attempt to configure a ring whose number is greater than the number 980 * specified in the Port Control Block (PCB). It is an error to issue the 981 * configure ring command more than once with the same ring number. The HBA 982 * returns an error if the driver attempts this. 983 * 984 * This routine prepares the mailbox command for configuring IOCB ring. 985 **/ 986 void 987 lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb) 988 { 989 int i; 990 MAILBOX_t *mb = &pmb->mb; 991 struct lpfc_sli *psli; 992 struct lpfc_sli_ring *pring; 993 994 memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); 995 996 mb->un.varCfgRing.ring = ring; 997 mb->un.varCfgRing.maxOrigXchg = 0; 998 mb->un.varCfgRing.maxRespXchg = 0; 999 mb->un.varCfgRing.recvNotify = 1; 1000 1001 psli = &phba->sli; 1002 pring = &psli->ring[ring]; 1003 mb->un.varCfgRing.numMask = pring->num_mask; 1004 mb->mbxCommand = MBX_CONFIG_RING; 1005 mb->mbxOwner = OWN_HOST; 1006 1007 /* Is this ring configured for a specific profile */ 1008 if (pring->prt[0].profile) { 1009 mb->un.varCfgRing.profile = pring->prt[0].profile; 1010 return; 1011 } 1012 1013 /* Otherwise we setup specific rctl / type masks for this ring */ 1014 for (i = 0; i < pring->num_mask; i++) { 1015 mb->un.varCfgRing.rrRegs[i].rval = pring->prt[i].rctl; 1016 if (mb->un.varCfgRing.rrRegs[i].rval != FC_ELS_REQ) 1017 mb->un.varCfgRing.rrRegs[i].rmask = 0xff; 1018 else 1019 mb->un.varCfgRing.rrRegs[i].rmask = 0xfe; 1020 mb->un.varCfgRing.rrRegs[i].tval = pring->prt[i].type; 1021 mb->un.varCfgRing.rrRegs[i].tmask = 0xff; 1022 } 1023 1024 return; 1025 } 1026 1027 /** 1028 * lpfc_config_port: Prepare a mailbox command for configuring port. 1029 * @phba: pointer to lpfc hba data structure. 1030 * @pmb: pointer to the driver internal queue element for mailbox command. 1031 * 1032 * The configure port mailbox command is used to identify the Port Control 1033 * Block (PCB) in the driver memory. After this command is issued, the 1034 * driver must not access the mailbox in the HBA without first resetting 1035 * the HBA. The HBA may copy the PCB information to internal storage for 1036 * subsequent use; the driver can not change the PCB information unless it 1037 * resets the HBA. 1038 * 1039 * This routine prepares the mailbox command for configuring port. 1040 **/ 1041 void 1042 lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1043 { 1044 MAILBOX_t __iomem *mb_slim = (MAILBOX_t __iomem *) phba->MBslimaddr; 1045 MAILBOX_t *mb = &pmb->mb; 1046 dma_addr_t pdma_addr; 1047 uint32_t bar_low, bar_high; 1048 size_t offset; 1049 struct lpfc_hgp hgp; 1050 int i; 1051 uint32_t pgp_offset; 1052 1053 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 1054 mb->mbxCommand = MBX_CONFIG_PORT; 1055 mb->mbxOwner = OWN_HOST; 1056 1057 mb->un.varCfgPort.pcbLen = sizeof(PCB_t); 1058 1059 offset = (uint8_t *)phba->pcb - (uint8_t *)phba->slim2p.virt; 1060 pdma_addr = phba->slim2p.phys + offset; 1061 mb->un.varCfgPort.pcbLow = putPaddrLow(pdma_addr); 1062 mb->un.varCfgPort.pcbHigh = putPaddrHigh(pdma_addr); 1063 1064 /* If HBA supports SLI=3 ask for it */ 1065 1066 if (phba->sli_rev == 3 && phba->vpd.sli3Feat.cerbm) { 1067 mb->un.varCfgPort.cerbm = 1; /* Request HBQs */ 1068 mb->un.varCfgPort.ccrp = 1; /* Command Ring Polling */ 1069 mb->un.varCfgPort.cinb = 1; /* Interrupt Notification Block */ 1070 mb->un.varCfgPort.max_hbq = lpfc_sli_hbq_count(); 1071 if (phba->max_vpi && phba->cfg_enable_npiv && 1072 phba->vpd.sli3Feat.cmv) { 1073 mb->un.varCfgPort.max_vpi = phba->max_vpi; 1074 mb->un.varCfgPort.cmv = 1; 1075 } else 1076 mb->un.varCfgPort.max_vpi = phba->max_vpi = 0; 1077 } else 1078 phba->sli_rev = 2; 1079 mb->un.varCfgPort.sli_mode = phba->sli_rev; 1080 1081 /* Now setup pcb */ 1082 phba->pcb->type = TYPE_NATIVE_SLI2; 1083 phba->pcb->feature = FEATURE_INITIAL_SLI2; 1084 1085 /* Setup Mailbox pointers */ 1086 phba->pcb->mailBoxSize = sizeof(MAILBOX_t); 1087 offset = (uint8_t *)phba->mbox - (uint8_t *)phba->slim2p.virt; 1088 pdma_addr = phba->slim2p.phys + offset; 1089 phba->pcb->mbAddrHigh = putPaddrHigh(pdma_addr); 1090 phba->pcb->mbAddrLow = putPaddrLow(pdma_addr); 1091 1092 /* 1093 * Setup Host Group ring pointer. 1094 * 1095 * For efficiency reasons, the ring get/put pointers can be 1096 * placed in adapter memory (SLIM) rather than in host memory. 1097 * This allows firmware to avoid PCI reads/writes when updating 1098 * and checking pointers. 1099 * 1100 * The firmware recognizes the use of SLIM memory by comparing 1101 * the address of the get/put pointers structure with that of 1102 * the SLIM BAR (BAR0). 1103 * 1104 * Caution: be sure to use the PCI config space value of BAR0/BAR1 1105 * (the hardware's view of the base address), not the OS's 1106 * value of pci_resource_start() as the OS value may be a cookie 1107 * for ioremap/iomap. 1108 */ 1109 1110 1111 pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_0, &bar_low); 1112 pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_1, &bar_high); 1113 1114 /* 1115 * Set up HGP - Port Memory 1116 * 1117 * The port expects the host get/put pointers to reside in memory 1118 * following the "non-diagnostic" mode mailbox (32 words, 0x80 bytes) 1119 * area of SLIM. In SLI-2 mode, there's an additional 16 reserved 1120 * words (0x40 bytes). This area is not reserved if HBQs are 1121 * configured in SLI-3. 1122 * 1123 * CR0Put - SLI2(no HBQs) = 0xc0, With HBQs = 0x80 1124 * RR0Get 0xc4 0x84 1125 * CR1Put 0xc8 0x88 1126 * RR1Get 0xcc 0x8c 1127 * CR2Put 0xd0 0x90 1128 * RR2Get 0xd4 0x94 1129 * CR3Put 0xd8 0x98 1130 * RR3Get 0xdc 0x9c 1131 * 1132 * Reserved 0xa0-0xbf 1133 * If HBQs configured: 1134 * HBQ 0 Put ptr 0xc0 1135 * HBQ 1 Put ptr 0xc4 1136 * HBQ 2 Put ptr 0xc8 1137 * ...... 1138 * HBQ(M-1)Put Pointer 0xc0+(M-1)*4 1139 * 1140 */ 1141 1142 if (phba->sli_rev == 3) { 1143 phba->host_gp = &mb_slim->us.s3.host[0]; 1144 phba->hbq_put = &mb_slim->us.s3.hbq_put[0]; 1145 } else { 1146 phba->host_gp = &mb_slim->us.s2.host[0]; 1147 phba->hbq_put = NULL; 1148 } 1149 1150 /* mask off BAR0's flag bits 0 - 3 */ 1151 phba->pcb->hgpAddrLow = (bar_low & PCI_BASE_ADDRESS_MEM_MASK) + 1152 (void __iomem *)phba->host_gp - 1153 (void __iomem *)phba->MBslimaddr; 1154 if (bar_low & PCI_BASE_ADDRESS_MEM_TYPE_64) 1155 phba->pcb->hgpAddrHigh = bar_high; 1156 else 1157 phba->pcb->hgpAddrHigh = 0; 1158 /* write HGP data to SLIM at the required longword offset */ 1159 memset(&hgp, 0, sizeof(struct lpfc_hgp)); 1160 1161 for (i=0; i < phba->sli.num_rings; i++) { 1162 lpfc_memcpy_to_slim(phba->host_gp + i, &hgp, 1163 sizeof(*phba->host_gp)); 1164 } 1165 1166 /* Setup Port Group ring pointer */ 1167 if (phba->sli3_options & LPFC_SLI3_INB_ENABLED) { 1168 pgp_offset = offsetof(struct lpfc_sli2_slim, 1169 mbx.us.s3_inb_pgp.port); 1170 phba->hbq_get = phba->mbox->us.s3_inb_pgp.hbq_get; 1171 } else if (phba->sli_rev == 3) { 1172 pgp_offset = offsetof(struct lpfc_sli2_slim, 1173 mbx.us.s3_pgp.port); 1174 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get; 1175 } else 1176 pgp_offset = offsetof(struct lpfc_sli2_slim, mbx.us.s2.port); 1177 pdma_addr = phba->slim2p.phys + pgp_offset; 1178 phba->pcb->pgpAddrHigh = putPaddrHigh(pdma_addr); 1179 phba->pcb->pgpAddrLow = putPaddrLow(pdma_addr); 1180 1181 /* Use callback routine to setp rings in the pcb */ 1182 lpfc_config_pcb_setup(phba); 1183 1184 /* special handling for LC HBAs */ 1185 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 1186 uint32_t hbainit[5]; 1187 1188 lpfc_hba_init(phba, hbainit); 1189 1190 memcpy(&mb->un.varCfgPort.hbainit, hbainit, 20); 1191 } 1192 1193 /* Swap PCB if needed */ 1194 lpfc_sli_pcimem_bcopy(phba->pcb, phba->pcb, sizeof(PCB_t)); 1195 } 1196 1197 /** 1198 * lpfc_kill_board: Prepare a mailbox command for killing board. 1199 * @phba: pointer to lpfc hba data structure. 1200 * @pmb: pointer to the driver internal queue element for mailbox command. 1201 * 1202 * The kill board mailbox command is used to tell firmware to perform a 1203 * graceful shutdown of a channel on a specified board to prepare for reset. 1204 * When the kill board mailbox command is received, the ER3 bit is set to 1 1205 * in the Host Status register and the ER Attention bit is set to 1 in the 1206 * Host Attention register of the HBA function that received the kill board 1207 * command. 1208 * 1209 * This routine prepares the mailbox command for killing the board in 1210 * preparation for a graceful shutdown. 1211 **/ 1212 void 1213 lpfc_kill_board(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 1214 { 1215 MAILBOX_t *mb = &pmb->mb; 1216 1217 memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); 1218 mb->mbxCommand = MBX_KILL_BOARD; 1219 mb->mbxOwner = OWN_HOST; 1220 return; 1221 } 1222 1223 /** 1224 * lpfc_mbox_put: Put a mailbox cmd into the tail of driver's mailbox queue. 1225 * @phba: pointer to lpfc hba data structure. 1226 * @mbq: pointer to the driver internal queue element for mailbox command. 1227 * 1228 * Driver maintains a internal mailbox command queue implemented as a linked 1229 * list. When a mailbox command is issued, it shall be put into the mailbox 1230 * command queue such that they shall be processed orderly as HBA can process 1231 * one mailbox command at a time. 1232 **/ 1233 void 1234 lpfc_mbox_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq) 1235 { 1236 struct lpfc_sli *psli; 1237 1238 psli = &phba->sli; 1239 1240 list_add_tail(&mbq->list, &psli->mboxq); 1241 1242 psli->mboxq_cnt++; 1243 1244 return; 1245 } 1246 1247 /** 1248 * lpfc_mbox_get: Remove a mailbox cmd from the head of driver's mailbox queue. 1249 * @phba: pointer to lpfc hba data structure. 1250 * 1251 * Driver maintains a internal mailbox command queue implemented as a linked 1252 * list. When a mailbox command is issued, it shall be put into the mailbox 1253 * command queue such that they shall be processed orderly as HBA can process 1254 * one mailbox command at a time. After HBA finished processing a mailbox 1255 * command, the driver will remove a pending mailbox command from the head of 1256 * the mailbox command queue and send to the HBA for processing. 1257 * 1258 * Return codes 1259 * pointer to the driver internal queue element for mailbox command. 1260 **/ 1261 LPFC_MBOXQ_t * 1262 lpfc_mbox_get(struct lpfc_hba * phba) 1263 { 1264 LPFC_MBOXQ_t *mbq = NULL; 1265 struct lpfc_sli *psli = &phba->sli; 1266 1267 list_remove_head((&psli->mboxq), mbq, LPFC_MBOXQ_t, list); 1268 if (mbq) 1269 psli->mboxq_cnt--; 1270 1271 return mbq; 1272 } 1273 1274 /** 1275 * lpfc_mbox_cmpl_put: Put mailbox command into mailbox command complete list. 1276 * @phba: pointer to lpfc hba data structure. 1277 * @mbq: pointer to the driver internal queue element for mailbox command. 1278 * 1279 * This routine put the completed mailbox command into the mailbox command 1280 * complete list. This routine is called from driver interrupt handler 1281 * context.The mailbox complete list is used by the driver worker thread 1282 * to process mailbox complete callback functions outside the driver interrupt 1283 * handler. 1284 **/ 1285 void 1286 lpfc_mbox_cmpl_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq) 1287 { 1288 /* This function expects to be called from interrupt context */ 1289 spin_lock(&phba->hbalock); 1290 list_add_tail(&mbq->list, &phba->sli.mboxq_cmpl); 1291 spin_unlock(&phba->hbalock); 1292 return; 1293 } 1294 1295 /** 1296 * lpfc_mbox_tmo_val: Retrieve mailbox command timeout value. 1297 * @phba: pointer to lpfc hba data structure. 1298 * @cmd: mailbox command code. 1299 * 1300 * This routine retrieves the proper timeout value according to the mailbox 1301 * command code. 1302 * 1303 * Return codes 1304 * Timeout value to be used for the given mailbox command 1305 **/ 1306 int 1307 lpfc_mbox_tmo_val(struct lpfc_hba *phba, int cmd) 1308 { 1309 switch (cmd) { 1310 case MBX_WRITE_NV: /* 0x03 */ 1311 case MBX_UPDATE_CFG: /* 0x1B */ 1312 case MBX_DOWN_LOAD: /* 0x1C */ 1313 case MBX_DEL_LD_ENTRY: /* 0x1D */ 1314 case MBX_LOAD_AREA: /* 0x81 */ 1315 case MBX_WRITE_WWN: /* 0x98 */ 1316 case MBX_LOAD_EXP_ROM: /* 0x9C */ 1317 return LPFC_MBOX_TMO_FLASH_CMD; 1318 } 1319 return LPFC_MBOX_TMO; 1320 } 1321