1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2007 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
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 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/interrupt.h>
26 #include <scsi/scsi_device.h>
27 #include <scsi/scsi_transport_fc.h>
29 #include <scsi/scsi.h>
33 #include "lpfc_disc.h"
34 #include "lpfc_scsi.h"
36 #include "lpfc_logmsg.h"
37 #include "lpfc_crtn.h"
38 #include "lpfc_compat.h"
41 * lpfc_dump_mem: Prepare a mailbox command for retrieving HBA's VPD memory.
42 * @phba: pointer to lpfc hba data structure.
43 * @pmb: pointer to the driver internal queue element for mailbox command.
44 * @offset: offset for dumping VPD memory mailbox command.
46 * The dump mailbox command provides a method for the device driver to obtain
47 * various types of information from the HBA device.
49 * This routine prepares the mailbox command for dumping HBA Vital Product
50 * Data (VPD) memory. This mailbox command is to be used for retrieving a
51 * portion (DMP_RSP_SIZE bytes) of a HBA's VPD from the HBA at an address
52 * offset specified by the offset parameter.
55 lpfc_dump_mem(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, uint16_t offset)
63 /* Setup to dump VPD region */
64 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
65 mb->mbxCommand = MBX_DUMP_MEMORY;
67 mb->un.varDmp.type = DMP_NV_PARAMS;
68 mb->un.varDmp.entry_index = offset;
69 mb->un.varDmp.region_id = DMP_REGION_VPD;
70 mb->un.varDmp.word_cnt = (DMP_RSP_SIZE / sizeof (uint32_t));
72 mb->un.varDmp.resp_offset = 0;
74 mb->mbxOwner = OWN_HOST;
79 * lpfc_read_nv: Prepare a mailbox command for reading HBA's NVRAM param.
80 * @phba: pointer to lpfc hba data structure.
81 * @pmb: pointer to the driver internal queue element for mailbox command.
83 * The read NVRAM mailbox command returns the HBA's non-volatile parameters
84 * that are used as defaults when the Fibre Channel link is brought on-line.
86 * This routine prepares the mailbox command for reading information stored
87 * in the HBA's NVRAM. Specifically, the HBA's WWNN and WWPN.
90 lpfc_read_nv(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
95 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
96 mb->mbxCommand = MBX_READ_NV;
97 mb->mbxOwner = OWN_HOST;
102 * lpfc_config_async: Prepare a mailbox command for enabling HBA async event.
103 * @phba: pointer to lpfc hba data structure.
104 * @pmb: pointer to the driver internal queue element for mailbox command.
105 * @ring: ring number for the asynchronous event to be configured.
107 * The asynchronous event enable mailbox command is used to enable the
108 * asynchronous event posting via the ASYNC_STATUS_CN IOCB response and
109 * specifies the default ring to which events are posted.
111 * This routine prepares the mailbox command for enabling HBA asynchronous
112 * event support on a IOCB ring.
115 lpfc_config_async(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb,
121 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
122 mb->mbxCommand = MBX_ASYNCEVT_ENABLE;
123 mb->un.varCfgAsyncEvent.ring = ring;
124 mb->mbxOwner = OWN_HOST;
129 * lpfc_heart_beat: Prepare a mailbox command for heart beat.
130 * @phba: pointer to lpfc hba data structure.
131 * @pmb: pointer to the driver internal queue element for mailbox command.
133 * The heart beat mailbox command is used to detect an unresponsive HBA, which
134 * is defined as any device where no error attention is sent and both mailbox
135 * and rings are not processed.
137 * This routine prepares the mailbox command for issuing a heart beat in the
138 * form of mailbox command to the HBA. The timely completion of the heart
139 * beat mailbox command indicates the health of the HBA.
142 lpfc_heart_beat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
147 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
148 mb->mbxCommand = MBX_HEARTBEAT;
149 mb->mbxOwner = OWN_HOST;
154 * lpfc_read_la: Prepare a mailbox command for reading HBA link attention.
155 * @phba: pointer to lpfc hba data structure.
156 * @pmb: pointer to the driver internal queue element for mailbox command.
157 * @mp: DMA buffer memory for reading the link attention information into.
159 * The read link attention mailbox command is issued to read the Link Event
160 * Attention information indicated by the HBA port when the Link Event bit
161 * of the Host Attention (HSTATT) register is set to 1. A Link Event
162 * Attention occurs based on an exception detected at the Fibre Channel link
165 * This routine prepares the mailbox command for reading HBA link attention
166 * information. A DMA memory has been set aside and address passed to the
167 * HBA through @mp for the HBA to DMA link attention information into the
168 * memory as part of the execution of the mailbox command.
171 * 0 - Success (currently always return 0)
174 lpfc_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, struct lpfc_dmabuf *mp)
177 struct lpfc_sli *psli;
181 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
183 INIT_LIST_HEAD(&mp->list);
184 mb->mbxCommand = MBX_READ_LA64;
185 mb->un.varReadLA.un.lilpBde64.tus.f.bdeSize = 128;
186 mb->un.varReadLA.un.lilpBde64.addrHigh = putPaddrHigh(mp->phys);
187 mb->un.varReadLA.un.lilpBde64.addrLow = putPaddrLow(mp->phys);
189 /* Save address for later completion and set the owner to host so that
190 * the FW knows this mailbox is available for processing.
192 pmb->context1 = (uint8_t *) mp;
193 mb->mbxOwner = OWN_HOST;
198 * lpfc_clear_la: Prepare a mailbox command for clearing HBA link attention.
199 * @phba: pointer to lpfc hba data structure.
200 * @pmb: pointer to the driver internal queue element for mailbox command.
202 * The clear link attention mailbox command is issued to clear the link event
203 * attention condition indicated by the Link Event bit of the Host Attention
204 * (HSTATT) register. The link event attention condition is cleared only if
205 * the event tag specified matches that of the current link event counter.
206 * The current event tag is read using the read link attention event mailbox
209 * This routine prepares the mailbox command for clearing HBA link attention
213 lpfc_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
218 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
220 mb->un.varClearLA.eventTag = phba->fc_eventTag;
221 mb->mbxCommand = MBX_CLEAR_LA;
222 mb->mbxOwner = OWN_HOST;
227 * lpfc_config_link: Prepare a mailbox command for configuring link on a HBA.
228 * @phba: pointer to lpfc hba data structure.
229 * @pmb: pointer to the driver internal queue element for mailbox command.
231 * The configure link mailbox command is used before the initialize link
232 * mailbox command to override default value and to configure link-oriented
233 * parameters such as DID address and various timers. Typically, this
234 * command would be used after an F_Port login to set the returned DID address
235 * and the fabric timeout values. This command is not valid before a configure
236 * port command has configured the HBA port.
238 * This routine prepares the mailbox command for configuring link on a HBA.
241 lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
243 struct lpfc_vport *vport = phba->pport;
244 MAILBOX_t *mb = &pmb->mb;
245 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
248 * SLI-2, Coalescing Response Feature.
250 if (phba->cfg_cr_delay) {
251 mb->un.varCfgLnk.cr = 1;
252 mb->un.varCfgLnk.ci = 1;
253 mb->un.varCfgLnk.cr_delay = phba->cfg_cr_delay;
254 mb->un.varCfgLnk.cr_count = phba->cfg_cr_count;
257 mb->un.varCfgLnk.myId = vport->fc_myDID;
258 mb->un.varCfgLnk.edtov = phba->fc_edtov;
259 mb->un.varCfgLnk.arbtov = phba->fc_arbtov;
260 mb->un.varCfgLnk.ratov = phba->fc_ratov;
261 mb->un.varCfgLnk.rttov = phba->fc_rttov;
262 mb->un.varCfgLnk.altov = phba->fc_altov;
263 mb->un.varCfgLnk.crtov = phba->fc_crtov;
264 mb->un.varCfgLnk.citov = phba->fc_citov;
267 mb->un.varCfgLnk.ack0_enable = 1;
269 mb->mbxCommand = MBX_CONFIG_LINK;
270 mb->mbxOwner = OWN_HOST;
275 * lpfc_init_link: Prepare a mailbox command for initialize link on a HBA.
276 * @phba: pointer to lpfc hba data structure.
277 * @pmb: pointer to the driver internal queue element for mailbox command.
278 * @topology: the link topology for the link to be initialized to.
279 * @linkspeed: the link speed for the link to be initialized to.
281 * The initialize link mailbox command is used to initialize the Fibre
282 * Channel link. This command must follow a configure port command that
283 * establishes the mode of operation.
285 * This routine prepares the mailbox command for initializing link on a HBA
286 * with the specified link topology and speed.
289 lpfc_init_link(struct lpfc_hba * phba,
290 LPFC_MBOXQ_t * pmb, uint32_t topology, uint32_t linkspeed)
293 struct lpfc_sli *psli;
297 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
301 case FLAGS_TOPOLOGY_MODE_LOOP_PT:
302 mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP;
303 mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER;
305 case FLAGS_TOPOLOGY_MODE_PT_PT:
306 mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
308 case FLAGS_TOPOLOGY_MODE_LOOP:
309 mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP;
311 case FLAGS_TOPOLOGY_MODE_PT_LOOP:
312 mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
313 mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER;
316 mb->un.varInitLnk.link_flags = FLAGS_LOCAL_LB;
320 /* Enable asynchronous ABTS responses from firmware */
321 mb->un.varInitLnk.link_flags |= FLAGS_IMED_ABORT;
324 * Setting up the link speed
327 if (vpd->rev.feaLevelHigh >= 0x02){
333 mb->un.varInitLnk.link_flags |=
335 mb->un.varInitLnk.link_speed = linkspeed;
337 case LINK_SPEED_AUTO:
339 mb->un.varInitLnk.link_speed =
346 mb->un.varInitLnk.link_speed = LINK_SPEED_AUTO;
348 mb->mbxCommand = (volatile uint8_t)MBX_INIT_LINK;
349 mb->mbxOwner = OWN_HOST;
350 mb->un.varInitLnk.fabric_AL_PA = phba->fc_pref_ALPA;
355 * lpfc_read_sparam: Prepare a mailbox command for reading HBA parameters.
356 * @phba: pointer to lpfc hba data structure.
357 * @pmb: pointer to the driver internal queue element for mailbox command.
358 * @vpi: virtual N_Port identifier.
360 * The read service parameter mailbox command is used to read the HBA port
361 * service parameters. The service parameters are read into the buffer
362 * specified directly by a BDE in the mailbox command. These service
363 * parameters may then be used to build the payload of an N_Port/F_POrt
364 * login request and reply (LOGI/ACC).
366 * This routine prepares the mailbox command for reading HBA port service
367 * parameters. The DMA memory is allocated in this function and the addresses
368 * are populated into the mailbox command for the HBA to DMA the service
373 * 1 - DMA memory allocation failed
376 lpfc_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, int vpi)
378 struct lpfc_dmabuf *mp;
380 struct lpfc_sli *psli;
384 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
386 mb->mbxOwner = OWN_HOST;
388 /* Get a buffer to hold the HBAs Service Parameters */
390 mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
392 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
393 if (!mp || !mp->virt) {
395 mb->mbxCommand = MBX_READ_SPARM64;
396 /* READ_SPARAM: no buffers */
397 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
398 "0301 READ_SPARAM: no buffers\n");
401 INIT_LIST_HEAD(&mp->list);
402 mb->mbxCommand = MBX_READ_SPARM64;
403 mb->un.varRdSparm.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
404 mb->un.varRdSparm.un.sp64.addrHigh = putPaddrHigh(mp->phys);
405 mb->un.varRdSparm.un.sp64.addrLow = putPaddrLow(mp->phys);
406 mb->un.varRdSparm.vpi = vpi;
408 /* save address for completion */
415 * lpfc_unreg_did: Prepare a mailbox command for unregistering DID.
416 * @phba: pointer to lpfc hba data structure.
417 * @vpi: virtual N_Port identifier.
418 * @did: remote port identifier.
419 * @pmb: pointer to the driver internal queue element for mailbox command.
421 * The unregister DID mailbox command is used to unregister an N_Port/F_Port
422 * login for an unknown RPI by specifying the DID of a remote port. This
423 * command frees an RPI context in the HBA port. This has the effect of
424 * performing an implicit N_Port/F_Port logout.
426 * This routine prepares the mailbox command for unregistering a remote
427 * N_Port/F_Port (DID) login.
430 lpfc_unreg_did(struct lpfc_hba * phba, uint16_t vpi, uint32_t did,
436 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
438 mb->un.varUnregDID.did = did;
439 mb->un.varUnregDID.vpi = vpi;
441 mb->mbxCommand = MBX_UNREG_D_ID;
442 mb->mbxOwner = OWN_HOST;
447 * lpfc_read_config: Prepare a mailbox command for reading HBA configuration.
448 * @phba: pointer to lpfc hba data structure.
449 * @pmb: pointer to the driver internal queue element for mailbox command.
451 * The read configuration mailbox command is used to read the HBA port
452 * configuration parameters. This mailbox command provides a method for
453 * seeing any parameters that may have changed via various configuration
456 * This routine prepares the mailbox command for reading out HBA configuration
460 lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
465 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
467 mb->mbxCommand = MBX_READ_CONFIG;
468 mb->mbxOwner = OWN_HOST;
473 * lpfc_read_lnk_stat: Prepare a mailbox command for reading HBA link stats.
474 * @phba: pointer to lpfc hba data structure.
475 * @pmb: pointer to the driver internal queue element for mailbox command.
477 * The read link status mailbox command is used to read the link status from
478 * the HBA. Link status includes all link-related error counters. These
479 * counters are maintained by the HBA and originated in the link hardware
480 * unit. Note that all of these counters wrap.
482 * This routine prepares the mailbox command for reading out HBA link status.
485 lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
490 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
492 mb->mbxCommand = MBX_READ_LNK_STAT;
493 mb->mbxOwner = OWN_HOST;
498 * lpfc_reg_login: Prepare a mailbox command for registering remote login.
499 * @phba: pointer to lpfc hba data structure.
500 * @vpi: virtual N_Port identifier.
501 * @did: remote port identifier.
502 * @param: pointer to memory holding the server parameters.
503 * @pmb: pointer to the driver internal queue element for mailbox command.
504 * @flag: action flag to be passed back for the complete function.
506 * The registration login mailbox command is used to register an N_Port or
507 * F_Port login. This registration allows the HBA to cache the remote N_Port
508 * service parameters internally and thereby make the appropriate FC-2
509 * decisions. The remote port service parameters are handed off by the driver
510 * to the HBA using a descriptor entry that directly identifies a buffer in
511 * host memory. In exchange, the HBA returns an RPI identifier.
513 * This routine prepares the mailbox command for registering remote port login.
514 * The function allocates DMA buffer for passing the service parameters to the
515 * HBA with the mailbox command.
519 * 1 - DMA memory allocation failed
522 lpfc_reg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t did,
523 uint8_t *param, LPFC_MBOXQ_t *pmb, uint32_t flag)
525 MAILBOX_t *mb = &pmb->mb;
527 struct lpfc_dmabuf *mp;
529 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
531 mb->un.varRegLogin.rpi = 0;
532 mb->un.varRegLogin.vpi = vpi;
533 mb->un.varRegLogin.did = did;
534 mb->un.varWords[30] = flag; /* Set flag to issue action on cmpl */
536 mb->mbxOwner = OWN_HOST;
538 /* Get a buffer to hold NPorts Service Parameters */
539 mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
541 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
542 if (!mp || !mp->virt) {
544 mb->mbxCommand = MBX_REG_LOGIN64;
545 /* REG_LOGIN: no buffers */
546 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
547 "0302 REG_LOGIN: no buffers, VPI:%d DID:x%x, "
548 "flag x%x\n", vpi, did, flag);
551 INIT_LIST_HEAD(&mp->list);
554 /* Copy param's into a new buffer */
555 memcpy(sparam, param, sizeof (struct serv_parm));
557 /* save address for completion */
558 pmb->context1 = (uint8_t *) mp;
560 mb->mbxCommand = MBX_REG_LOGIN64;
561 mb->un.varRegLogin.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
562 mb->un.varRegLogin.un.sp64.addrHigh = putPaddrHigh(mp->phys);
563 mb->un.varRegLogin.un.sp64.addrLow = putPaddrLow(mp->phys);
569 * lpfc_unreg_login: Prepare a mailbox command for unregistering remote login.
570 * @phba: pointer to lpfc hba data structure.
571 * @vpi: virtual N_Port identifier.
572 * @rpi: remote port identifier
573 * @pmb: pointer to the driver internal queue element for mailbox command.
575 * The unregistration login mailbox command is used to unregister an N_Port
576 * or F_Port login. This command frees an RPI context in the HBA. It has the
577 * effect of performing an implicit N_Port/F_Port logout.
579 * This routine prepares the mailbox command for unregistering remote port
583 lpfc_unreg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t rpi,
589 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
591 mb->un.varUnregLogin.rpi = (uint16_t) rpi;
592 mb->un.varUnregLogin.rsvd1 = 0;
593 mb->un.varUnregLogin.vpi = vpi;
595 mb->mbxCommand = MBX_UNREG_LOGIN;
596 mb->mbxOwner = OWN_HOST;
601 * lpfc_reg_vpi: Prepare a mailbox command for registering vport identifier.
602 * @phba: pointer to lpfc hba data structure.
603 * @vpi: virtual N_Port identifier.
604 * @sid: Fibre Channel S_ID (N_Port_ID assigned to a virtual N_Port).
605 * @pmb: pointer to the driver internal queue element for mailbox command.
607 * The registration vport identifier mailbox command is used to activate a
608 * virtual N_Port after it has acquired an N_Port_ID. The HBA validates the
609 * N_Port_ID against the information in the selected virtual N_Port context
610 * block and marks it active to allow normal processing of IOCB commands and
611 * received unsolicited exchanges.
613 * This routine prepares the mailbox command for registering a virtual N_Port.
616 lpfc_reg_vpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t sid,
619 MAILBOX_t *mb = &pmb->mb;
621 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
623 mb->un.varRegVpi.vpi = vpi;
624 mb->un.varRegVpi.sid = sid;
626 mb->mbxCommand = MBX_REG_VPI;
627 mb->mbxOwner = OWN_HOST;
633 * lpfc_unreg_vpi: Prepare a mailbox command for unregistering vport id.
634 * @phba: pointer to lpfc hba data structure.
635 * @vpi: virtual N_Port identifier.
636 * @pmb: pointer to the driver internal queue element for mailbox command.
638 * The unregistration vport identifier mailbox command is used to inactivate
639 * a virtual N_Port. The driver must have logged out and unregistered all
640 * remote N_Ports to abort any activity on the virtual N_Port. The HBA will
641 * unregisters any default RPIs associated with the specified vpi, aborting
642 * any active exchanges. The HBA will post the mailbox response after making
643 * the virtual N_Port inactive.
645 * This routine prepares the mailbox command for unregistering a virtual
649 lpfc_unreg_vpi(struct lpfc_hba *phba, uint16_t vpi, LPFC_MBOXQ_t *pmb)
651 MAILBOX_t *mb = &pmb->mb;
652 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
654 mb->un.varUnregVpi.vpi = vpi;
656 mb->mbxCommand = MBX_UNREG_VPI;
657 mb->mbxOwner = OWN_HOST;
663 * lpfc_config_pcb_setup: Set up IOCB rings in the Port Control Block (PCB)
664 * @phba: pointer to lpfc hba data structure.
666 * This routine sets up and initializes the IOCB rings in the Port Control
670 lpfc_config_pcb_setup(struct lpfc_hba * phba)
672 struct lpfc_sli *psli = &phba->sli;
673 struct lpfc_sli_ring *pring;
674 PCB_t *pcbp = &phba->slim2p->pcb;
675 dma_addr_t pdma_addr;
677 uint32_t iocbCnt = 0;
680 pcbp->maxRing = (psli->num_rings - 1);
682 for (i = 0; i < psli->num_rings; i++) {
683 pring = &psli->ring[i];
685 pring->sizeCiocb = phba->sli_rev == 3 ? SLI3_IOCB_CMD_SIZE:
687 pring->sizeRiocb = phba->sli_rev == 3 ? SLI3_IOCB_RSP_SIZE:
689 /* A ring MUST have both cmd and rsp entries defined to be
691 if ((pring->numCiocb == 0) || (pring->numRiocb == 0)) {
692 pcbp->rdsc[i].cmdEntries = 0;
693 pcbp->rdsc[i].rspEntries = 0;
694 pcbp->rdsc[i].cmdAddrHigh = 0;
695 pcbp->rdsc[i].rspAddrHigh = 0;
696 pcbp->rdsc[i].cmdAddrLow = 0;
697 pcbp->rdsc[i].rspAddrLow = 0;
698 pring->cmdringaddr = NULL;
699 pring->rspringaddr = NULL;
702 /* Command ring setup for ring */
703 pring->cmdringaddr = (void *) &phba->slim2p->IOCBs[iocbCnt];
704 pcbp->rdsc[i].cmdEntries = pring->numCiocb;
706 offset = (uint8_t *) &phba->slim2p->IOCBs[iocbCnt] -
707 (uint8_t *) phba->slim2p;
708 pdma_addr = phba->slim2p_mapping + offset;
709 pcbp->rdsc[i].cmdAddrHigh = putPaddrHigh(pdma_addr);
710 pcbp->rdsc[i].cmdAddrLow = putPaddrLow(pdma_addr);
711 iocbCnt += pring->numCiocb;
713 /* Response ring setup for ring */
714 pring->rspringaddr = (void *) &phba->slim2p->IOCBs[iocbCnt];
716 pcbp->rdsc[i].rspEntries = pring->numRiocb;
717 offset = (uint8_t *)&phba->slim2p->IOCBs[iocbCnt] -
718 (uint8_t *)phba->slim2p;
719 pdma_addr = phba->slim2p_mapping + offset;
720 pcbp->rdsc[i].rspAddrHigh = putPaddrHigh(pdma_addr);
721 pcbp->rdsc[i].rspAddrLow = putPaddrLow(pdma_addr);
722 iocbCnt += pring->numRiocb;
727 * lpfc_read_rev: Prepare a mailbox command for reading HBA revision.
728 * @phba: pointer to lpfc hba data structure.
729 * @pmb: pointer to the driver internal queue element for mailbox command.
731 * The read revision mailbox command is used to read the revision levels of
732 * the HBA components. These components include hardware units, resident
733 * firmware, and available firmware. HBAs that supports SLI-3 mode of
734 * operation provide different response information depending on the version
735 * requested by the driver.
737 * This routine prepares the mailbox command for reading HBA revision
741 lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
743 MAILBOX_t *mb = &pmb->mb;
744 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
745 mb->un.varRdRev.cv = 1;
746 mb->un.varRdRev.v3req = 1; /* Request SLI3 info */
747 mb->mbxCommand = MBX_READ_REV;
748 mb->mbxOwner = OWN_HOST;
753 * lpfc_build_hbq_profile2: Set up the HBQ Selection Profile 2.
754 * @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
755 * @hbq_desc: pointer to the HBQ selection profile descriptor.
757 * The Host Buffer Queue (HBQ) Selection Profile 2 specifies that the HBA
758 * tests the incoming frames' R_CTL/TYPE fields with works 10:15 and performs
759 * the Sequence Length Test using the fields in the Selection Profile 2
760 * extension in words 20:31.
763 lpfc_build_hbq_profile2(struct config_hbq_var *hbqmb,
764 struct lpfc_hbq_init *hbq_desc)
766 hbqmb->profiles.profile2.seqlenbcnt = hbq_desc->seqlenbcnt;
767 hbqmb->profiles.profile2.maxlen = hbq_desc->maxlen;
768 hbqmb->profiles.profile2.seqlenoff = hbq_desc->seqlenoff;
772 * lpfc_build_hbq_profile3: Set up the HBQ Selection Profile 3.
773 * @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
774 * @hbq_desc: pointer to the HBQ selection profile descriptor.
776 * The Host Buffer Queue (HBQ) Selection Profile 3 specifies that the HBA
777 * tests the incoming frame's R_CTL/TYPE fields with words 10:15 and performs
778 * the Sequence Length Test and Byte Field Test using the fields in the
779 * Selection Profile 3 extension in words 20:31.
782 lpfc_build_hbq_profile3(struct config_hbq_var *hbqmb,
783 struct lpfc_hbq_init *hbq_desc)
785 hbqmb->profiles.profile3.seqlenbcnt = hbq_desc->seqlenbcnt;
786 hbqmb->profiles.profile3.maxlen = hbq_desc->maxlen;
787 hbqmb->profiles.profile3.cmdcodeoff = hbq_desc->cmdcodeoff;
788 hbqmb->profiles.profile3.seqlenoff = hbq_desc->seqlenoff;
789 memcpy(&hbqmb->profiles.profile3.cmdmatch, hbq_desc->cmdmatch,
790 sizeof(hbqmb->profiles.profile3.cmdmatch));
794 * lpfc_build_hbq_profile5: Set up the HBQ Selection Profile 5.
795 * @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
796 * @hbq_desc: pointer to the HBQ selection profile descriptor.
798 * The Host Buffer Queue (HBQ) Selection Profile 5 specifies a header HBQ. The
799 * HBA tests the initial frame of an incoming sequence using the frame's
800 * R_CTL/TYPE fields with words 10:15 and performs the Sequence Length Test
801 * and Byte Field Test using the fields in the Selection Profile 5 extension
805 lpfc_build_hbq_profile5(struct config_hbq_var *hbqmb,
806 struct lpfc_hbq_init *hbq_desc)
808 hbqmb->profiles.profile5.seqlenbcnt = hbq_desc->seqlenbcnt;
809 hbqmb->profiles.profile5.maxlen = hbq_desc->maxlen;
810 hbqmb->profiles.profile5.cmdcodeoff = hbq_desc->cmdcodeoff;
811 hbqmb->profiles.profile5.seqlenoff = hbq_desc->seqlenoff;
812 memcpy(&hbqmb->profiles.profile5.cmdmatch, hbq_desc->cmdmatch,
813 sizeof(hbqmb->profiles.profile5.cmdmatch));
817 * lpfc_config_hbq: Prepare a mailbox command for configuring an HBQ.
818 * @phba: pointer to lpfc hba data structure.
819 * @id: HBQ identifier.
820 * @hbq_desc: pointer to the HBA descriptor data structure.
821 * @hbq_entry_index: index of the HBQ entry data structures.
822 * @pmb: pointer to the driver internal queue element for mailbox command.
824 * The configure HBQ (Host Buffer Queue) mailbox command is used to configure
825 * an HBQ. The configuration binds events that require buffers to a particular
826 * ring and HBQ based on a selection profile.
828 * This routine prepares the mailbox command for configuring an HBQ.
831 lpfc_config_hbq(struct lpfc_hba *phba, uint32_t id,
832 struct lpfc_hbq_init *hbq_desc,
833 uint32_t hbq_entry_index, LPFC_MBOXQ_t *pmb)
836 MAILBOX_t *mb = &pmb->mb;
837 struct config_hbq_var *hbqmb = &mb->un.varCfgHbq;
839 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
841 hbqmb->entry_count = hbq_desc->entry_count; /* # entries in HBQ */
842 hbqmb->recvNotify = hbq_desc->rn; /* Receive
844 hbqmb->numMask = hbq_desc->mask_count; /* # R_CTL/TYPE masks
846 hbqmb->profile = hbq_desc->profile; /* Selection profile:
849 hbqmb->ringMask = hbq_desc->ring_mask; /* Binds HBQ to a ring
852 hbqmb->headerLen = hbq_desc->headerLen; /* 0 if not profile 4
854 hbqmb->logEntry = hbq_desc->logEntry; /* Set to 1 if this
858 hbqmb->hbqaddrLow = putPaddrLow(phba->hbqslimp.phys) +
859 hbq_entry_index * sizeof(struct lpfc_hbq_entry);
860 hbqmb->hbqaddrHigh = putPaddrHigh(phba->hbqslimp.phys);
862 mb->mbxCommand = MBX_CONFIG_HBQ;
863 mb->mbxOwner = OWN_HOST;
865 /* Copy info for profiles 2,3,5. Other
866 * profiles this area is reserved
868 if (hbq_desc->profile == 2)
869 lpfc_build_hbq_profile2(hbqmb, hbq_desc);
870 else if (hbq_desc->profile == 3)
871 lpfc_build_hbq_profile3(hbqmb, hbq_desc);
872 else if (hbq_desc->profile == 5)
873 lpfc_build_hbq_profile5(hbqmb, hbq_desc);
875 /* Return if no rctl / type masks for this HBQ */
876 if (!hbq_desc->mask_count)
879 /* Otherwise we setup specific rctl / type masks for this HBQ */
880 for (i = 0; i < hbq_desc->mask_count; i++) {
881 hbqmb->hbqMasks[i].tmatch = hbq_desc->hbqMasks[i].tmatch;
882 hbqmb->hbqMasks[i].tmask = hbq_desc->hbqMasks[i].tmask;
883 hbqmb->hbqMasks[i].rctlmatch = hbq_desc->hbqMasks[i].rctlmatch;
884 hbqmb->hbqMasks[i].rctlmask = hbq_desc->hbqMasks[i].rctlmask;
891 * lpfc_config_ring: Prepare a mailbox command for configuring an IOCB ring.
892 * @phba: pointer to lpfc hba data structure.
894 * @pmb: pointer to the driver internal queue element for mailbox command.
896 * The configure ring mailbox command is used to configure an IOCB ring. This
897 * configuration binds from one to six of HBA RC_CTL/TYPE mask entries to the
898 * ring. This is used to map incoming sequences to a particular ring whose
899 * RC_CTL/TYPE mask entry matches that of the sequence. The driver should not
900 * attempt to configure a ring whose number is greater than the number
901 * specified in the Port Control Block (PCB). It is an error to issue the
902 * configure ring command more than once with the same ring number. The HBA
903 * returns an error if the driver attempts this.
905 * This routine prepares the mailbox command for configuring IOCB ring.
908 lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb)
911 MAILBOX_t *mb = &pmb->mb;
912 struct lpfc_sli *psli;
913 struct lpfc_sli_ring *pring;
915 memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
917 mb->un.varCfgRing.ring = ring;
918 mb->un.varCfgRing.maxOrigXchg = 0;
919 mb->un.varCfgRing.maxRespXchg = 0;
920 mb->un.varCfgRing.recvNotify = 1;
923 pring = &psli->ring[ring];
924 mb->un.varCfgRing.numMask = pring->num_mask;
925 mb->mbxCommand = MBX_CONFIG_RING;
926 mb->mbxOwner = OWN_HOST;
928 /* Is this ring configured for a specific profile */
929 if (pring->prt[0].profile) {
930 mb->un.varCfgRing.profile = pring->prt[0].profile;
934 /* Otherwise we setup specific rctl / type masks for this ring */
935 for (i = 0; i < pring->num_mask; i++) {
936 mb->un.varCfgRing.rrRegs[i].rval = pring->prt[i].rctl;
937 if (mb->un.varCfgRing.rrRegs[i].rval != FC_ELS_REQ)
938 mb->un.varCfgRing.rrRegs[i].rmask = 0xff;
940 mb->un.varCfgRing.rrRegs[i].rmask = 0xfe;
941 mb->un.varCfgRing.rrRegs[i].tval = pring->prt[i].type;
942 mb->un.varCfgRing.rrRegs[i].tmask = 0xff;
949 * lpfc_config_port: Prepare a mailbox command for configuring port.
950 * @phba: pointer to lpfc hba data structure.
951 * @pmb: pointer to the driver internal queue element for mailbox command.
953 * The configure port mailbox command is used to identify the Port Control
954 * Block (PCB) in the driver memory. After this command is issued, the
955 * driver must not access the mailbox in the HBA without first resetting
956 * the HBA. The HBA may copy the PCB information to internal storage for
957 * subsequent use; the driver can not change the PCB information unless it
960 * This routine prepares the mailbox command for configuring port.
963 lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
965 MAILBOX_t __iomem *mb_slim = (MAILBOX_t __iomem *) phba->MBslimaddr;
966 MAILBOX_t *mb = &pmb->mb;
967 dma_addr_t pdma_addr;
968 uint32_t bar_low, bar_high;
974 memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
975 mb->mbxCommand = MBX_CONFIG_PORT;
976 mb->mbxOwner = OWN_HOST;
978 mb->un.varCfgPort.pcbLen = sizeof(PCB_t);
980 offset = (uint8_t *)&phba->slim2p->pcb - (uint8_t *)phba->slim2p;
981 pdma_addr = phba->slim2p_mapping + offset;
982 mb->un.varCfgPort.pcbLow = putPaddrLow(pdma_addr);
983 mb->un.varCfgPort.pcbHigh = putPaddrHigh(pdma_addr);
985 /* If HBA supports SLI=3 ask for it */
987 if (phba->sli_rev == 3 && phba->vpd.sli3Feat.cerbm) {
988 mb->un.varCfgPort.cerbm = 1; /* Request HBQs */
989 mb->un.varCfgPort.max_hbq = lpfc_sli_hbq_count();
990 if (phba->max_vpi && phba->cfg_enable_npiv &&
991 phba->vpd.sli3Feat.cmv) {
992 mb->un.varCfgPort.max_vpi = phba->max_vpi;
993 mb->un.varCfgPort.cmv = 1;
994 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
996 mb->un.varCfgPort.max_vpi = phba->max_vpi = 0;
999 mb->un.varCfgPort.sli_mode = phba->sli_rev;
1002 phba->slim2p->pcb.type = TYPE_NATIVE_SLI2;
1003 phba->slim2p->pcb.feature = FEATURE_INITIAL_SLI2;
1005 /* Setup Mailbox pointers */
1006 phba->slim2p->pcb.mailBoxSize = offsetof(MAILBOX_t, us) +
1007 sizeof(struct sli2_desc);
1008 offset = (uint8_t *)&phba->slim2p->mbx - (uint8_t *)phba->slim2p;
1009 pdma_addr = phba->slim2p_mapping + offset;
1010 phba->slim2p->pcb.mbAddrHigh = putPaddrHigh(pdma_addr);
1011 phba->slim2p->pcb.mbAddrLow = putPaddrLow(pdma_addr);
1014 * Setup Host Group ring pointer.
1016 * For efficiency reasons, the ring get/put pointers can be
1017 * placed in adapter memory (SLIM) rather than in host memory.
1018 * This allows firmware to avoid PCI reads/writes when updating
1019 * and checking pointers.
1021 * The firmware recognizes the use of SLIM memory by comparing
1022 * the address of the get/put pointers structure with that of
1023 * the SLIM BAR (BAR0).
1025 * Caution: be sure to use the PCI config space value of BAR0/BAR1
1026 * (the hardware's view of the base address), not the OS's
1027 * value of pci_resource_start() as the OS value may be a cookie
1028 * for ioremap/iomap.
1032 pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_0, &bar_low);
1033 pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_1, &bar_high);
1036 * Set up HGP - Port Memory
1038 * The port expects the host get/put pointers to reside in memory
1039 * following the "non-diagnostic" mode mailbox (32 words, 0x80 bytes)
1040 * area of SLIM. In SLI-2 mode, there's an additional 16 reserved
1041 * words (0x40 bytes). This area is not reserved if HBQs are
1042 * configured in SLI-3.
1044 * CR0Put - SLI2(no HBQs) = 0xc0, With HBQs = 0x80
1053 * Reserved 0xa0-0xbf
1054 * If HBQs configured:
1055 * HBQ 0 Put ptr 0xc0
1056 * HBQ 1 Put ptr 0xc4
1057 * HBQ 2 Put ptr 0xc8
1059 * HBQ(M-1)Put Pointer 0xc0+(M-1)*4
1063 if (phba->sli_rev == 3) {
1064 phba->host_gp = &mb_slim->us.s3.host[0];
1065 phba->hbq_put = &mb_slim->us.s3.hbq_put[0];
1067 phba->host_gp = &mb_slim->us.s2.host[0];
1068 phba->hbq_put = NULL;
1071 /* mask off BAR0's flag bits 0 - 3 */
1072 phba->slim2p->pcb.hgpAddrLow = (bar_low & PCI_BASE_ADDRESS_MEM_MASK) +
1073 (void __iomem *) phba->host_gp -
1074 (void __iomem *)phba->MBslimaddr;
1075 if (bar_low & PCI_BASE_ADDRESS_MEM_TYPE_64)
1076 phba->slim2p->pcb.hgpAddrHigh = bar_high;
1078 phba->slim2p->pcb.hgpAddrHigh = 0;
1079 /* write HGP data to SLIM at the required longword offset */
1080 memset(&hgp, 0, sizeof(struct lpfc_hgp));
1082 for (i=0; i < phba->sli.num_rings; i++) {
1083 lpfc_memcpy_to_slim(phba->host_gp + i, &hgp,
1084 sizeof(*phba->host_gp));
1087 /* Setup Port Group ring pointer */
1088 if (phba->sli_rev == 3)
1089 pgp_offset = (uint8_t *)&phba->slim2p->mbx.us.s3_pgp.port -
1090 (uint8_t *)phba->slim2p;
1092 pgp_offset = (uint8_t *)&phba->slim2p->mbx.us.s2.port -
1093 (uint8_t *)phba->slim2p;
1095 pdma_addr = phba->slim2p_mapping + pgp_offset;
1096 phba->slim2p->pcb.pgpAddrHigh = putPaddrHigh(pdma_addr);
1097 phba->slim2p->pcb.pgpAddrLow = putPaddrLow(pdma_addr);
1098 phba->hbq_get = &phba->slim2p->mbx.us.s3_pgp.hbq_get[0];
1100 /* Use callback routine to setp rings in the pcb */
1101 lpfc_config_pcb_setup(phba);
1103 /* special handling for LC HBAs */
1104 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
1105 uint32_t hbainit[5];
1107 lpfc_hba_init(phba, hbainit);
1109 memcpy(&mb->un.varCfgPort.hbainit, hbainit, 20);
1112 /* Swap PCB if needed */
1113 lpfc_sli_pcimem_bcopy(&phba->slim2p->pcb, &phba->slim2p->pcb,
1118 * lpfc_kill_board: Prepare a mailbox command for killing board.
1119 * @phba: pointer to lpfc hba data structure.
1120 * @pmb: pointer to the driver internal queue element for mailbox command.
1122 * The kill board mailbox command is used to tell firmware to perform a
1123 * graceful shutdown of a channel on a specified board to prepare for reset.
1124 * When the kill board mailbox command is received, the ER3 bit is set to 1
1125 * in the Host Status register and the ER Attention bit is set to 1 in the
1126 * Host Attention register of the HBA function that received the kill board
1129 * This routine prepares the mailbox command for killing the board in
1130 * preparation for a graceful shutdown.
1133 lpfc_kill_board(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
1135 MAILBOX_t *mb = &pmb->mb;
1137 memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
1138 mb->mbxCommand = MBX_KILL_BOARD;
1139 mb->mbxOwner = OWN_HOST;
1144 * lpfc_mbox_put: Put a mailbox cmd into the tail of driver's mailbox queue.
1145 * @phba: pointer to lpfc hba data structure.
1146 * @mbq: pointer to the driver internal queue element for mailbox command.
1148 * Driver maintains a internal mailbox command queue implemented as a linked
1149 * list. When a mailbox command is issued, it shall be put into the mailbox
1150 * command queue such that they shall be processed orderly as HBA can process
1151 * one mailbox command at a time.
1154 lpfc_mbox_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq)
1156 struct lpfc_sli *psli;
1160 list_add_tail(&mbq->list, &psli->mboxq);
1168 * lpfc_mbox_get: Remove a mailbox cmd from the head of driver's mailbox queue.
1169 * @phba: pointer to lpfc hba data structure.
1171 * Driver maintains a internal mailbox command queue implemented as a linked
1172 * list. When a mailbox command is issued, it shall be put into the mailbox
1173 * command queue such that they shall be processed orderly as HBA can process
1174 * one mailbox command at a time. After HBA finished processing a mailbox
1175 * command, the driver will remove a pending mailbox command from the head of
1176 * the mailbox command queue and send to the HBA for processing.
1179 * pointer to the driver internal queue element for mailbox command.
1182 lpfc_mbox_get(struct lpfc_hba * phba)
1184 LPFC_MBOXQ_t *mbq = NULL;
1185 struct lpfc_sli *psli = &phba->sli;
1187 list_remove_head((&psli->mboxq), mbq, LPFC_MBOXQ_t, list);
1195 * lpfc_mbox_cmpl_put: Put mailbox command into mailbox command complete list.
1196 * @phba: pointer to lpfc hba data structure.
1197 * @mbq: pointer to the driver internal queue element for mailbox command.
1199 * This routine put the completed mailbox command into the mailbox command
1200 * complete list. This routine is called from driver interrupt handler
1201 * context.The mailbox complete list is used by the driver worker thread
1202 * to process mailbox complete callback functions outside the driver interrupt
1206 lpfc_mbox_cmpl_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq)
1208 /* This function expects to be called from interrupt context */
1209 spin_lock(&phba->hbalock);
1210 list_add_tail(&mbq->list, &phba->sli.mboxq_cmpl);
1211 spin_unlock(&phba->hbalock);
1216 * lpfc_mbox_tmo_val: Retrieve mailbox command timeout value.
1217 * @phba: pointer to lpfc hba data structure.
1218 * @cmd: mailbox command code.
1220 * This routine retrieves the proper timeout value according to the mailbox
1224 * Timeout value to be used for the given mailbox command
1227 lpfc_mbox_tmo_val(struct lpfc_hba *phba, int cmd)
1230 case MBX_WRITE_NV: /* 0x03 */
1231 case MBX_UPDATE_CFG: /* 0x1B */
1232 case MBX_DOWN_LOAD: /* 0x1C */
1233 case MBX_DEL_LD_ENTRY: /* 0x1D */
1234 case MBX_LOAD_AREA: /* 0x81 */
1235 case MBX_WRITE_WWN: /* 0x98 */
1236 case MBX_LOAD_EXP_ROM: /* 0x9C */
1237 return LPFC_MBOX_TMO_FLASH_CMD;
1239 return LPFC_MBOX_TMO;