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linux/drivers/scsi/lpfc/lpfc_mbox.c
James Smart 8f34f4cea3 [SCSI] lpfc 8.3.0 : Fix issue with assumed Interrupt Enable Block support 
The phba hbq_get address was setup before the HBA reported support for
Interrupt Enable Block (INB).  This caused loopback tests to fail
after all HBQs had been used once.  Moved setting of hba_get until
after config port mailbox command completes.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-29 11:24:26 -06:00

1351 lines
44 KiB
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/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2004-2008 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
*******************************************************************/
#include <linux/blkdev.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_transport_fc.h>
#include <scsi/scsi.h>
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_compat.h"
/**
* lpfc_dump_mem: Prepare a mailbox command for retrieving HBA's VPD memory.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
* @offset: offset for dumping VPD memory mailbox command.
*
* The dump mailbox command provides a method for the device driver to obtain
* various types of information from the HBA device.
*
* This routine prepares the mailbox command for dumping HBA Vital Product
* Data (VPD) memory. This mailbox command is to be used for retrieving a
* portion (DMP_RSP_SIZE bytes) of a HBA's VPD from the HBA at an address
* offset specified by the offset parameter.
**/
void
lpfc_dump_mem(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, uint16_t offset)
{
MAILBOX_t *mb;
void *ctx;
mb = &pmb->mb;
ctx = pmb->context2;
/* Setup to dump VPD region */
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxCommand = MBX_DUMP_MEMORY;
mb->un.varDmp.cv = 1;
mb->un.varDmp.type = DMP_NV_PARAMS;
mb->un.varDmp.entry_index = offset;
mb->un.varDmp.region_id = DMP_REGION_VPD;
mb->un.varDmp.word_cnt = (DMP_RSP_SIZE / sizeof (uint32_t));
mb->un.varDmp.co = 0;
mb->un.varDmp.resp_offset = 0;
pmb->context2 = ctx;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_dump_mem: Prepare a mailbox command for retrieving wakeup params.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
* This function create a dump memory mailbox command to dump wake up
* parameters.
*/
void
lpfc_dump_wakeup_param(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb;
void *ctx;
mb = &pmb->mb;
/* Save context so that we can restore after memset */
ctx = pmb->context2;
/* Setup to dump VPD region */
memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
mb->mbxCommand = MBX_DUMP_MEMORY;
mb->mbxOwner = OWN_HOST;
mb->un.varDmp.cv = 1;
mb->un.varDmp.type = DMP_NV_PARAMS;
mb->un.varDmp.entry_index = 0;
mb->un.varDmp.region_id = WAKE_UP_PARMS_REGION_ID;
mb->un.varDmp.word_cnt = WAKE_UP_PARMS_WORD_SIZE;
mb->un.varDmp.co = 0;
mb->un.varDmp.resp_offset = 0;
pmb->context2 = ctx;
return;
}
/**
* lpfc_read_nv: Prepare a mailbox command for reading HBA's NVRAM param.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The read NVRAM mailbox command returns the HBA's non-volatile parameters
* that are used as defaults when the Fibre Channel link is brought on-line.
*
* This routine prepares the mailbox command for reading information stored
* in the HBA's NVRAM. Specifically, the HBA's WWNN and WWPN.
**/
void
lpfc_read_nv(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
mb = &pmb->mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxCommand = MBX_READ_NV;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_config_async: Prepare a mailbox command for enabling HBA async event.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
* @ring: ring number for the asynchronous event to be configured.
*
* The asynchronous event enable mailbox command is used to enable the
* asynchronous event posting via the ASYNC_STATUS_CN IOCB response and
* specifies the default ring to which events are posted.
*
* This routine prepares the mailbox command for enabling HBA asynchronous
* event support on a IOCB ring.
**/
void
lpfc_config_async(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb,
uint32_t ring)
{
MAILBOX_t *mb;
mb = &pmb->mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxCommand = MBX_ASYNCEVT_ENABLE;
mb->un.varCfgAsyncEvent.ring = ring;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_heart_beat: Prepare a mailbox command for heart beat.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The heart beat mailbox command is used to detect an unresponsive HBA, which
* is defined as any device where no error attention is sent and both mailbox
* and rings are not processed.
*
* This routine prepares the mailbox command for issuing a heart beat in the
* form of mailbox command to the HBA. The timely completion of the heart
* beat mailbox command indicates the health of the HBA.
**/
void
lpfc_heart_beat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
mb = &pmb->mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxCommand = MBX_HEARTBEAT;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_read_la: Prepare a mailbox command for reading HBA link attention.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
* @mp: DMA buffer memory for reading the link attention information into.
*
* The read link attention mailbox command is issued to read the Link Event
* Attention information indicated by the HBA port when the Link Event bit
* of the Host Attention (HSTATT) register is set to 1. A Link Event
* Attention occurs based on an exception detected at the Fibre Channel link
* interface.
*
* This routine prepares the mailbox command for reading HBA link attention
* information. A DMA memory has been set aside and address passed to the
* HBA through @mp for the HBA to DMA link attention information into the
* memory as part of the execution of the mailbox command.
*
* Return codes
* 0 - Success (currently always return 0)
**/
int
lpfc_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, struct lpfc_dmabuf *mp)
{
MAILBOX_t *mb;
struct lpfc_sli *psli;
psli = &phba->sli;
mb = &pmb->mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
INIT_LIST_HEAD(&mp->list);
mb->mbxCommand = MBX_READ_LA64;
mb->un.varReadLA.un.lilpBde64.tus.f.bdeSize = 128;
mb->un.varReadLA.un.lilpBde64.addrHigh = putPaddrHigh(mp->phys);
mb->un.varReadLA.un.lilpBde64.addrLow = putPaddrLow(mp->phys);
/* Save address for later completion and set the owner to host so that
* the FW knows this mailbox is available for processing.
*/
pmb->context1 = (uint8_t *) mp;
mb->mbxOwner = OWN_HOST;
return (0);
}
/**
* lpfc_clear_la: Prepare a mailbox command for clearing HBA link attention.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The clear link attention mailbox command is issued to clear the link event
* attention condition indicated by the Link Event bit of the Host Attention
* (HSTATT) register. The link event attention condition is cleared only if
* the event tag specified matches that of the current link event counter.
* The current event tag is read using the read link attention event mailbox
* command.
*
* This routine prepares the mailbox command for clearing HBA link attention
* information.
**/
void
lpfc_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
mb = &pmb->mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varClearLA.eventTag = phba->fc_eventTag;
mb->mbxCommand = MBX_CLEAR_LA;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_config_link: Prepare a mailbox command for configuring link on a HBA.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The configure link mailbox command is used before the initialize link
* mailbox command to override default value and to configure link-oriented
* parameters such as DID address and various timers. Typically, this
* command would be used after an F_Port login to set the returned DID address
* and the fabric timeout values. This command is not valid before a configure
* port command has configured the HBA port.
*
* This routine prepares the mailbox command for configuring link on a HBA.
**/
void
lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
struct lpfc_vport *vport = phba->pport;
MAILBOX_t *mb = &pmb->mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
/* NEW_FEATURE
* SLI-2, Coalescing Response Feature.
*/
if (phba->cfg_cr_delay) {
mb->un.varCfgLnk.cr = 1;
mb->un.varCfgLnk.ci = 1;
mb->un.varCfgLnk.cr_delay = phba->cfg_cr_delay;
mb->un.varCfgLnk.cr_count = phba->cfg_cr_count;
}
mb->un.varCfgLnk.myId = vport->fc_myDID;
mb->un.varCfgLnk.edtov = phba->fc_edtov;
mb->un.varCfgLnk.arbtov = phba->fc_arbtov;
mb->un.varCfgLnk.ratov = phba->fc_ratov;
mb->un.varCfgLnk.rttov = phba->fc_rttov;
mb->un.varCfgLnk.altov = phba->fc_altov;
mb->un.varCfgLnk.crtov = phba->fc_crtov;
mb->un.varCfgLnk.citov = phba->fc_citov;
if (phba->cfg_ack0)
mb->un.varCfgLnk.ack0_enable = 1;
mb->mbxCommand = MBX_CONFIG_LINK;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_config_msi: Prepare a mailbox command for configuring msi-x.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The configure MSI-X mailbox command is used to configure the HBA's SLI-3
* MSI-X multi-message interrupt vector association to interrupt attention
* conditions.
*
* Return codes
* 0 - Success
* -EINVAL - Failure
**/
int
lpfc_config_msi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb = &pmb->mb;
uint32_t attentionConditions[2];
/* Sanity check */
if (phba->cfg_use_msi != 2) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0475 Not configured for supporting MSI-X "
"cfg_use_msi: 0x%x\n", phba->cfg_use_msi);
return -EINVAL;
}
if (phba->sli_rev < 3) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0476 HBA not supporting SLI-3 or later "
"SLI Revision: 0x%x\n", phba->sli_rev);
return -EINVAL;
}
/* Clear mailbox command fields */
memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
/*
* SLI-3, Message Signaled Interrupt Fearure.
*/
/* Multi-message attention configuration */
attentionConditions[0] = (HA_R0ATT | HA_R1ATT | HA_R2ATT | HA_ERATT |
HA_LATT | HA_MBATT);
attentionConditions[1] = 0;
mb->un.varCfgMSI.attentionConditions[0] = attentionConditions[0];
mb->un.varCfgMSI.attentionConditions[1] = attentionConditions[1];
/*
* Set up message number to HA bit association
*/
#ifdef __BIG_ENDIAN_BITFIELD
/* RA0 (FCP Ring) */
mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS] = 1;
/* RA1 (Other Protocol Extra Ring) */
mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS] = 1;
#else /* __LITTLE_ENDIAN_BITFIELD */
/* RA0 (FCP Ring) */
mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS^3] = 1;
/* RA1 (Other Protocol Extra Ring) */
mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS^3] = 1;
#endif
/* Multi-message interrupt autoclear configuration*/
mb->un.varCfgMSI.autoClearHA[0] = attentionConditions[0];
mb->un.varCfgMSI.autoClearHA[1] = attentionConditions[1];
/* For now, HBA autoclear does not work reliably, disable it */
mb->un.varCfgMSI.autoClearHA[0] = 0;
mb->un.varCfgMSI.autoClearHA[1] = 0;
/* Set command and owner bit */
mb->mbxCommand = MBX_CONFIG_MSI;
mb->mbxOwner = OWN_HOST;
return 0;
}
/**
* lpfc_init_link: Prepare a mailbox command for initialize link on a HBA.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
* @topology: the link topology for the link to be initialized to.
* @linkspeed: the link speed for the link to be initialized to.
*
* The initialize link mailbox command is used to initialize the Fibre
* Channel link. This command must follow a configure port command that
* establishes the mode of operation.
*
* This routine prepares the mailbox command for initializing link on a HBA
* with the specified link topology and speed.
**/
void
lpfc_init_link(struct lpfc_hba * phba,
LPFC_MBOXQ_t * pmb, uint32_t topology, uint32_t linkspeed)
{
lpfc_vpd_t *vpd;
struct lpfc_sli *psli;
MAILBOX_t *mb;
mb = &pmb->mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
psli = &phba->sli;
switch (topology) {
case FLAGS_TOPOLOGY_MODE_LOOP_PT:
mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP;
mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER;
break;
case FLAGS_TOPOLOGY_MODE_PT_PT:
mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
break;
case FLAGS_TOPOLOGY_MODE_LOOP:
mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP;
break;
case FLAGS_TOPOLOGY_MODE_PT_LOOP:
mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER;
break;
case FLAGS_LOCAL_LB:
mb->un.varInitLnk.link_flags = FLAGS_LOCAL_LB;
break;
}
/* Enable asynchronous ABTS responses from firmware */
mb->un.varInitLnk.link_flags |= FLAGS_IMED_ABORT;
/* NEW_FEATURE
* Setting up the link speed
*/
vpd = &phba->vpd;
if (vpd->rev.feaLevelHigh >= 0x02){
switch(linkspeed){
case LINK_SPEED_1G:
case LINK_SPEED_2G:
case LINK_SPEED_4G:
case LINK_SPEED_8G:
mb->un.varInitLnk.link_flags |=
FLAGS_LINK_SPEED;
mb->un.varInitLnk.link_speed = linkspeed;
break;
case LINK_SPEED_AUTO:
default:
mb->un.varInitLnk.link_speed =
LINK_SPEED_AUTO;
break;
}
}
else
mb->un.varInitLnk.link_speed = LINK_SPEED_AUTO;
mb->mbxCommand = (volatile uint8_t)MBX_INIT_LINK;
mb->mbxOwner = OWN_HOST;
mb->un.varInitLnk.fabric_AL_PA = phba->fc_pref_ALPA;
return;
}
/**
* lpfc_read_sparam: Prepare a mailbox command for reading HBA parameters.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
* @vpi: virtual N_Port identifier.
*
* The read service parameter mailbox command is used to read the HBA port
* service parameters. The service parameters are read into the buffer
* specified directly by a BDE in the mailbox command. These service
* parameters may then be used to build the payload of an N_Port/F_POrt
* login request and reply (LOGI/ACC).
*
* This routine prepares the mailbox command for reading HBA port service
* parameters. The DMA memory is allocated in this function and the addresses
* are populated into the mailbox command for the HBA to DMA the service
* parameters into.
*
* Return codes
* 0 - Success
* 1 - DMA memory allocation failed
**/
int
lpfc_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, int vpi)
{
struct lpfc_dmabuf *mp;
MAILBOX_t *mb;
struct lpfc_sli *psli;
psli = &phba->sli;
mb = &pmb->mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxOwner = OWN_HOST;
/* Get a buffer to hold the HBAs Service Parameters */
mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
if (mp)
mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
if (!mp || !mp->virt) {
kfree(mp);
mb->mbxCommand = MBX_READ_SPARM64;
/* READ_SPARAM: no buffers */
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
"0301 READ_SPARAM: no buffers\n");
return (1);
}
INIT_LIST_HEAD(&mp->list);
mb->mbxCommand = MBX_READ_SPARM64;
mb->un.varRdSparm.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
mb->un.varRdSparm.un.sp64.addrHigh = putPaddrHigh(mp->phys);
mb->un.varRdSparm.un.sp64.addrLow = putPaddrLow(mp->phys);
mb->un.varRdSparm.vpi = vpi;
/* save address for completion */
pmb->context1 = mp;
return (0);
}
/**
* lpfc_unreg_did: Prepare a mailbox command for unregistering DID.
* @phba: pointer to lpfc hba data structure.
* @vpi: virtual N_Port identifier.
* @did: remote port identifier.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The unregister DID mailbox command is used to unregister an N_Port/F_Port
* login for an unknown RPI by specifying the DID of a remote port. This
* command frees an RPI context in the HBA port. This has the effect of
* performing an implicit N_Port/F_Port logout.
*
* This routine prepares the mailbox command for unregistering a remote
* N_Port/F_Port (DID) login.
**/
void
lpfc_unreg_did(struct lpfc_hba * phba, uint16_t vpi, uint32_t did,
LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
mb = &pmb->mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varUnregDID.did = did;
mb->un.varUnregDID.vpi = vpi;
mb->mbxCommand = MBX_UNREG_D_ID;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_read_config: Prepare a mailbox command for reading HBA configuration.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The read configuration mailbox command is used to read the HBA port
* configuration parameters. This mailbox command provides a method for
* seeing any parameters that may have changed via various configuration
* mailbox commands.
*
* This routine prepares the mailbox command for reading out HBA configuration
* parameters.
**/
void
lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
mb = &pmb->mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxCommand = MBX_READ_CONFIG;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_read_lnk_stat: Prepare a mailbox command for reading HBA link stats.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The read link status mailbox command is used to read the link status from
* the HBA. Link status includes all link-related error counters. These
* counters are maintained by the HBA and originated in the link hardware
* unit. Note that all of these counters wrap.
*
* This routine prepares the mailbox command for reading out HBA link status.
**/
void
lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
mb = &pmb->mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxCommand = MBX_READ_LNK_STAT;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_reg_login: Prepare a mailbox command for registering remote login.
* @phba: pointer to lpfc hba data structure.
* @vpi: virtual N_Port identifier.
* @did: remote port identifier.
* @param: pointer to memory holding the server parameters.
* @pmb: pointer to the driver internal queue element for mailbox command.
* @flag: action flag to be passed back for the complete function.
*
* The registration login mailbox command is used to register an N_Port or
* F_Port login. This registration allows the HBA to cache the remote N_Port
* service parameters internally and thereby make the appropriate FC-2
* decisions. The remote port service parameters are handed off by the driver
* to the HBA using a descriptor entry that directly identifies a buffer in
* host memory. In exchange, the HBA returns an RPI identifier.
*
* This routine prepares the mailbox command for registering remote port login.
* The function allocates DMA buffer for passing the service parameters to the
* HBA with the mailbox command.
*
* Return codes
* 0 - Success
* 1 - DMA memory allocation failed
**/
int
lpfc_reg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t did,
uint8_t *param, LPFC_MBOXQ_t *pmb, uint32_t flag)
{
MAILBOX_t *mb = &pmb->mb;
uint8_t *sparam;
struct lpfc_dmabuf *mp;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varRegLogin.rpi = 0;
mb->un.varRegLogin.vpi = vpi;
mb->un.varRegLogin.did = did;
mb->un.varWords[30] = flag; /* Set flag to issue action on cmpl */
mb->mbxOwner = OWN_HOST;
/* Get a buffer to hold NPorts Service Parameters */
mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
if (mp)
mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
if (!mp || !mp->virt) {
kfree(mp);
mb->mbxCommand = MBX_REG_LOGIN64;
/* REG_LOGIN: no buffers */
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
"0302 REG_LOGIN: no buffers, VPI:%d DID:x%x, "
"flag x%x\n", vpi, did, flag);
return (1);
}
INIT_LIST_HEAD(&mp->list);
sparam = mp->virt;
/* Copy param's into a new buffer */
memcpy(sparam, param, sizeof (struct serv_parm));
/* save address for completion */
pmb->context1 = (uint8_t *) mp;
mb->mbxCommand = MBX_REG_LOGIN64;
mb->un.varRegLogin.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
mb->un.varRegLogin.un.sp64.addrHigh = putPaddrHigh(mp->phys);
mb->un.varRegLogin.un.sp64.addrLow = putPaddrLow(mp->phys);
return (0);
}
/**
* lpfc_unreg_login: Prepare a mailbox command for unregistering remote login.
* @phba: pointer to lpfc hba data structure.
* @vpi: virtual N_Port identifier.
* @rpi: remote port identifier
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The unregistration login mailbox command is used to unregister an N_Port
* or F_Port login. This command frees an RPI context in the HBA. It has the
* effect of performing an implicit N_Port/F_Port logout.
*
* This routine prepares the mailbox command for unregistering remote port
* login.
**/
void
lpfc_unreg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t rpi,
LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
mb = &pmb->mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varUnregLogin.rpi = (uint16_t) rpi;
mb->un.varUnregLogin.rsvd1 = 0;
mb->un.varUnregLogin.vpi = vpi;
mb->mbxCommand = MBX_UNREG_LOGIN;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_reg_vpi: Prepare a mailbox command for registering vport identifier.
* @phba: pointer to lpfc hba data structure.
* @vpi: virtual N_Port identifier.
* @sid: Fibre Channel S_ID (N_Port_ID assigned to a virtual N_Port).
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The registration vport identifier mailbox command is used to activate a
* virtual N_Port after it has acquired an N_Port_ID. The HBA validates the
* N_Port_ID against the information in the selected virtual N_Port context
* block and marks it active to allow normal processing of IOCB commands and
* received unsolicited exchanges.
*
* This routine prepares the mailbox command for registering a virtual N_Port.
**/
void
lpfc_reg_vpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t sid,
LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb = &pmb->mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varRegVpi.vpi = vpi;
mb->un.varRegVpi.sid = sid;
mb->mbxCommand = MBX_REG_VPI;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_unreg_vpi: Prepare a mailbox command for unregistering vport id.
* @phba: pointer to lpfc hba data structure.
* @vpi: virtual N_Port identifier.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The unregistration vport identifier mailbox command is used to inactivate
* a virtual N_Port. The driver must have logged out and unregistered all
* remote N_Ports to abort any activity on the virtual N_Port. The HBA will
* unregisters any default RPIs associated with the specified vpi, aborting
* any active exchanges. The HBA will post the mailbox response after making
* the virtual N_Port inactive.
*
* This routine prepares the mailbox command for unregistering a virtual
* N_Port.
**/
void
lpfc_unreg_vpi(struct lpfc_hba *phba, uint16_t vpi, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb = &pmb->mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varUnregVpi.vpi = vpi;
mb->mbxCommand = MBX_UNREG_VPI;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_config_pcb_setup: Set up IOCB rings in the Port Control Block (PCB)
* @phba: pointer to lpfc hba data structure.
*
* This routine sets up and initializes the IOCB rings in the Port Control
* Block (PCB).
**/
static void
lpfc_config_pcb_setup(struct lpfc_hba * phba)
{
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *pring;
PCB_t *pcbp = phba->pcb;
dma_addr_t pdma_addr;
uint32_t offset;
uint32_t iocbCnt = 0;
int i;
pcbp->maxRing = (psli->num_rings - 1);
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->ring[i];
pring->sizeCiocb = phba->sli_rev == 3 ? SLI3_IOCB_CMD_SIZE:
SLI2_IOCB_CMD_SIZE;
pring->sizeRiocb = phba->sli_rev == 3 ? SLI3_IOCB_RSP_SIZE:
SLI2_IOCB_RSP_SIZE;
/* A ring MUST have both cmd and rsp entries defined to be
valid */
if ((pring->numCiocb == 0) || (pring->numRiocb == 0)) {
pcbp->rdsc[i].cmdEntries = 0;
pcbp->rdsc[i].rspEntries = 0;
pcbp->rdsc[i].cmdAddrHigh = 0;
pcbp->rdsc[i].rspAddrHigh = 0;
pcbp->rdsc[i].cmdAddrLow = 0;
pcbp->rdsc[i].rspAddrLow = 0;
pring->cmdringaddr = NULL;
pring->rspringaddr = NULL;
continue;
}
/* Command ring setup for ring */
pring->cmdringaddr = (void *)&phba->IOCBs[iocbCnt];
pcbp->rdsc[i].cmdEntries = pring->numCiocb;
offset = (uint8_t *) &phba->IOCBs[iocbCnt] -
(uint8_t *) phba->slim2p.virt;
pdma_addr = phba->slim2p.phys + offset;
pcbp->rdsc[i].cmdAddrHigh = putPaddrHigh(pdma_addr);
pcbp->rdsc[i].cmdAddrLow = putPaddrLow(pdma_addr);
iocbCnt += pring->numCiocb;
/* Response ring setup for ring */
pring->rspringaddr = (void *) &phba->IOCBs[iocbCnt];
pcbp->rdsc[i].rspEntries = pring->numRiocb;
offset = (uint8_t *)&phba->IOCBs[iocbCnt] -
(uint8_t *)phba->slim2p.virt;
pdma_addr = phba->slim2p.phys + offset;
pcbp->rdsc[i].rspAddrHigh = putPaddrHigh(pdma_addr);
pcbp->rdsc[i].rspAddrLow = putPaddrLow(pdma_addr);
iocbCnt += pring->numRiocb;
}
}
/**
* lpfc_read_rev: Prepare a mailbox command for reading HBA revision.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The read revision mailbox command is used to read the revision levels of
* the HBA components. These components include hardware units, resident
* firmware, and available firmware. HBAs that supports SLI-3 mode of
* operation provide different response information depending on the version
* requested by the driver.
*
* This routine prepares the mailbox command for reading HBA revision
* information.
**/
void
lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb = &pmb->mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varRdRev.cv = 1;
mb->un.varRdRev.v3req = 1; /* Request SLI3 info */
mb->mbxCommand = MBX_READ_REV;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_build_hbq_profile2: Set up the HBQ Selection Profile 2.
* @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
* @hbq_desc: pointer to the HBQ selection profile descriptor.
*
* The Host Buffer Queue (HBQ) Selection Profile 2 specifies that the HBA
* tests the incoming frames' R_CTL/TYPE fields with works 10:15 and performs
* the Sequence Length Test using the fields in the Selection Profile 2
* extension in words 20:31.
**/
static void
lpfc_build_hbq_profile2(struct config_hbq_var *hbqmb,
struct lpfc_hbq_init *hbq_desc)
{
hbqmb->profiles.profile2.seqlenbcnt = hbq_desc->seqlenbcnt;
hbqmb->profiles.profile2.maxlen = hbq_desc->maxlen;
hbqmb->profiles.profile2.seqlenoff = hbq_desc->seqlenoff;
}
/**
* lpfc_build_hbq_profile3: Set up the HBQ Selection Profile 3.
* @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
* @hbq_desc: pointer to the HBQ selection profile descriptor.
*
* The Host Buffer Queue (HBQ) Selection Profile 3 specifies that the HBA
* tests the incoming frame's R_CTL/TYPE fields with words 10:15 and performs
* the Sequence Length Test and Byte Field Test using the fields in the
* Selection Profile 3 extension in words 20:31.
**/
static void
lpfc_build_hbq_profile3(struct config_hbq_var *hbqmb,
struct lpfc_hbq_init *hbq_desc)
{
hbqmb->profiles.profile3.seqlenbcnt = hbq_desc->seqlenbcnt;
hbqmb->profiles.profile3.maxlen = hbq_desc->maxlen;
hbqmb->profiles.profile3.cmdcodeoff = hbq_desc->cmdcodeoff;
hbqmb->profiles.profile3.seqlenoff = hbq_desc->seqlenoff;
memcpy(&hbqmb->profiles.profile3.cmdmatch, hbq_desc->cmdmatch,
sizeof(hbqmb->profiles.profile3.cmdmatch));
}
/**
* lpfc_build_hbq_profile5: Set up the HBQ Selection Profile 5.
* @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
* @hbq_desc: pointer to the HBQ selection profile descriptor.
*
* The Host Buffer Queue (HBQ) Selection Profile 5 specifies a header HBQ. The
* HBA tests the initial frame of an incoming sequence using the frame's
* R_CTL/TYPE fields with words 10:15 and performs the Sequence Length Test
* and Byte Field Test using the fields in the Selection Profile 5 extension
* words 20:31.
**/
static void
lpfc_build_hbq_profile5(struct config_hbq_var *hbqmb,
struct lpfc_hbq_init *hbq_desc)
{
hbqmb->profiles.profile5.seqlenbcnt = hbq_desc->seqlenbcnt;
hbqmb->profiles.profile5.maxlen = hbq_desc->maxlen;
hbqmb->profiles.profile5.cmdcodeoff = hbq_desc->cmdcodeoff;
hbqmb->profiles.profile5.seqlenoff = hbq_desc->seqlenoff;
memcpy(&hbqmb->profiles.profile5.cmdmatch, hbq_desc->cmdmatch,
sizeof(hbqmb->profiles.profile5.cmdmatch));
}
/**
* lpfc_config_hbq: Prepare a mailbox command for configuring an HBQ.
* @phba: pointer to lpfc hba data structure.
* @id: HBQ identifier.
* @hbq_desc: pointer to the HBA descriptor data structure.
* @hbq_entry_index: index of the HBQ entry data structures.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The configure HBQ (Host Buffer Queue) mailbox command is used to configure
* an HBQ. The configuration binds events that require buffers to a particular
* ring and HBQ based on a selection profile.
*
* This routine prepares the mailbox command for configuring an HBQ.
**/
void
lpfc_config_hbq(struct lpfc_hba *phba, uint32_t id,
struct lpfc_hbq_init *hbq_desc,
uint32_t hbq_entry_index, LPFC_MBOXQ_t *pmb)
{
int i;
MAILBOX_t *mb = &pmb->mb;
struct config_hbq_var *hbqmb = &mb->un.varCfgHbq;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
hbqmb->hbqId = id;
hbqmb->entry_count = hbq_desc->entry_count; /* # entries in HBQ */
hbqmb->recvNotify = hbq_desc->rn; /* Receive
* Notification */
hbqmb->numMask = hbq_desc->mask_count; /* # R_CTL/TYPE masks
* # in words 0-19 */
hbqmb->profile = hbq_desc->profile; /* Selection profile:
* 0 = all,
* 7 = logentry */
hbqmb->ringMask = hbq_desc->ring_mask; /* Binds HBQ to a ring
* e.g. Ring0=b0001,
* ring2=b0100 */
hbqmb->headerLen = hbq_desc->headerLen; /* 0 if not profile 4
* or 5 */
hbqmb->logEntry = hbq_desc->logEntry; /* Set to 1 if this
* HBQ will be used
* for LogEntry
* buffers */
hbqmb->hbqaddrLow = putPaddrLow(phba->hbqslimp.phys) +
hbq_entry_index * sizeof(struct lpfc_hbq_entry);
hbqmb->hbqaddrHigh = putPaddrHigh(phba->hbqslimp.phys);
mb->mbxCommand = MBX_CONFIG_HBQ;
mb->mbxOwner = OWN_HOST;
/* Copy info for profiles 2,3,5. Other
* profiles this area is reserved
*/
if (hbq_desc->profile == 2)
lpfc_build_hbq_profile2(hbqmb, hbq_desc);
else if (hbq_desc->profile == 3)
lpfc_build_hbq_profile3(hbqmb, hbq_desc);
else if (hbq_desc->profile == 5)
lpfc_build_hbq_profile5(hbqmb, hbq_desc);
/* Return if no rctl / type masks for this HBQ */
if (!hbq_desc->mask_count)
return;
/* Otherwise we setup specific rctl / type masks for this HBQ */
for (i = 0; i < hbq_desc->mask_count; i++) {
hbqmb->hbqMasks[i].tmatch = hbq_desc->hbqMasks[i].tmatch;
hbqmb->hbqMasks[i].tmask = hbq_desc->hbqMasks[i].tmask;
hbqmb->hbqMasks[i].rctlmatch = hbq_desc->hbqMasks[i].rctlmatch;
hbqmb->hbqMasks[i].rctlmask = hbq_desc->hbqMasks[i].rctlmask;
}
return;
}
/**
* lpfc_config_ring: Prepare a mailbox command for configuring an IOCB ring.
* @phba: pointer to lpfc hba data structure.
* @ring:
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The configure ring mailbox command is used to configure an IOCB ring. This
* configuration binds from one to six of HBA RC_CTL/TYPE mask entries to the
* ring. This is used to map incoming sequences to a particular ring whose
* RC_CTL/TYPE mask entry matches that of the sequence. The driver should not
* attempt to configure a ring whose number is greater than the number
* specified in the Port Control Block (PCB). It is an error to issue the
* configure ring command more than once with the same ring number. The HBA
* returns an error if the driver attempts this.
*
* This routine prepares the mailbox command for configuring IOCB ring.
**/
void
lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb)
{
int i;
MAILBOX_t *mb = &pmb->mb;
struct lpfc_sli *psli;
struct lpfc_sli_ring *pring;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varCfgRing.ring = ring;
mb->un.varCfgRing.maxOrigXchg = 0;
mb->un.varCfgRing.maxRespXchg = 0;
mb->un.varCfgRing.recvNotify = 1;
psli = &phba->sli;
pring = &psli->ring[ring];
mb->un.varCfgRing.numMask = pring->num_mask;
mb->mbxCommand = MBX_CONFIG_RING;
mb->mbxOwner = OWN_HOST;
/* Is this ring configured for a specific profile */
if (pring->prt[0].profile) {
mb->un.varCfgRing.profile = pring->prt[0].profile;
return;
}
/* Otherwise we setup specific rctl / type masks for this ring */
for (i = 0; i < pring->num_mask; i++) {
mb->un.varCfgRing.rrRegs[i].rval = pring->prt[i].rctl;
if (mb->un.varCfgRing.rrRegs[i].rval != FC_ELS_REQ)
mb->un.varCfgRing.rrRegs[i].rmask = 0xff;
else
mb->un.varCfgRing.rrRegs[i].rmask = 0xfe;
mb->un.varCfgRing.rrRegs[i].tval = pring->prt[i].type;
mb->un.varCfgRing.rrRegs[i].tmask = 0xff;
}
return;
}
/**
* lpfc_config_port: Prepare a mailbox command for configuring port.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The configure port mailbox command is used to identify the Port Control
* Block (PCB) in the driver memory. After this command is issued, the
* driver must not access the mailbox in the HBA without first resetting
* the HBA. The HBA may copy the PCB information to internal storage for
* subsequent use; the driver can not change the PCB information unless it
* resets the HBA.
*
* This routine prepares the mailbox command for configuring port.
**/
void
lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t __iomem *mb_slim = (MAILBOX_t __iomem *) phba->MBslimaddr;
MAILBOX_t *mb = &pmb->mb;
dma_addr_t pdma_addr;
uint32_t bar_low, bar_high;
size_t offset;
struct lpfc_hgp hgp;
int i;
uint32_t pgp_offset;
memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
mb->mbxCommand = MBX_CONFIG_PORT;
mb->mbxOwner = OWN_HOST;
mb->un.varCfgPort.pcbLen = sizeof(PCB_t);
offset = (uint8_t *)phba->pcb - (uint8_t *)phba->slim2p.virt;
pdma_addr = phba->slim2p.phys + offset;
mb->un.varCfgPort.pcbLow = putPaddrLow(pdma_addr);
mb->un.varCfgPort.pcbHigh = putPaddrHigh(pdma_addr);
/* Always Host Group Pointer is in SLIM */
mb->un.varCfgPort.hps = 1;
/* If HBA supports SLI=3 ask for it */
if (phba->sli_rev == 3 && phba->vpd.sli3Feat.cerbm) {
mb->un.varCfgPort.cerbm = 1; /* Request HBQs */
mb->un.varCfgPort.ccrp = 1; /* Command Ring Polling */
mb->un.varCfgPort.cinb = 1; /* Interrupt Notification Block */
mb->un.varCfgPort.max_hbq = lpfc_sli_hbq_count();
if (phba->max_vpi && phba->cfg_enable_npiv &&
phba->vpd.sli3Feat.cmv) {
mb->un.varCfgPort.max_vpi = phba->max_vpi;
mb->un.varCfgPort.cmv = 1;
} else
mb->un.varCfgPort.max_vpi = phba->max_vpi = 0;
} else
phba->sli_rev = 2;
mb->un.varCfgPort.sli_mode = phba->sli_rev;
/* Now setup pcb */
phba->pcb->type = TYPE_NATIVE_SLI2;
phba->pcb->feature = FEATURE_INITIAL_SLI2;
/* Setup Mailbox pointers */
phba->pcb->mailBoxSize = sizeof(MAILBOX_t);
offset = (uint8_t *)phba->mbox - (uint8_t *)phba->slim2p.virt;
pdma_addr = phba->slim2p.phys + offset;
phba->pcb->mbAddrHigh = putPaddrHigh(pdma_addr);
phba->pcb->mbAddrLow = putPaddrLow(pdma_addr);
/*
* Setup Host Group ring pointer.
*
* For efficiency reasons, the ring get/put pointers can be
* placed in adapter memory (SLIM) rather than in host memory.
* This allows firmware to avoid PCI reads/writes when updating
* and checking pointers.
*
* The firmware recognizes the use of SLIM memory by comparing
* the address of the get/put pointers structure with that of
* the SLIM BAR (BAR0).
*
* Caution: be sure to use the PCI config space value of BAR0/BAR1
* (the hardware's view of the base address), not the OS's
* value of pci_resource_start() as the OS value may be a cookie
* for ioremap/iomap.
*/
pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_0, &bar_low);
pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_1, &bar_high);
/*
* Set up HGP - Port Memory
*
* The port expects the host get/put pointers to reside in memory
* following the "non-diagnostic" mode mailbox (32 words, 0x80 bytes)
* area of SLIM. In SLI-2 mode, there's an additional 16 reserved
* words (0x40 bytes). This area is not reserved if HBQs are
* configured in SLI-3.
*
* CR0Put - SLI2(no HBQs) = 0xc0, With HBQs = 0x80
* RR0Get 0xc4 0x84
* CR1Put 0xc8 0x88
* RR1Get 0xcc 0x8c
* CR2Put 0xd0 0x90
* RR2Get 0xd4 0x94
* CR3Put 0xd8 0x98
* RR3Get 0xdc 0x9c
*
* Reserved 0xa0-0xbf
* If HBQs configured:
* HBQ 0 Put ptr 0xc0
* HBQ 1 Put ptr 0xc4
* HBQ 2 Put ptr 0xc8
* ......
* HBQ(M-1)Put Pointer 0xc0+(M-1)*4
*
*/
if (phba->sli_rev == 3) {
phba->host_gp = &mb_slim->us.s3.host[0];
phba->hbq_put = &mb_slim->us.s3.hbq_put[0];
} else {
phba->host_gp = &mb_slim->us.s2.host[0];
phba->hbq_put = NULL;
}
/* mask off BAR0's flag bits 0 - 3 */
phba->pcb->hgpAddrLow = (bar_low & PCI_BASE_ADDRESS_MEM_MASK) +
(void __iomem *)phba->host_gp -
(void __iomem *)phba->MBslimaddr;
if (bar_low & PCI_BASE_ADDRESS_MEM_TYPE_64)
phba->pcb->hgpAddrHigh = bar_high;
else
phba->pcb->hgpAddrHigh = 0;
/* write HGP data to SLIM at the required longword offset */
memset(&hgp, 0, sizeof(struct lpfc_hgp));
for (i=0; i < phba->sli.num_rings; i++) {
lpfc_memcpy_to_slim(phba->host_gp + i, &hgp,
sizeof(*phba->host_gp));
}
/* Setup Port Group offset */
if (phba->sli_rev == 3)
pgp_offset = offsetof(struct lpfc_sli2_slim,
mbx.us.s3_pgp.port);
else
pgp_offset = offsetof(struct lpfc_sli2_slim, mbx.us.s2.port);
pdma_addr = phba->slim2p.phys + pgp_offset;
phba->pcb->pgpAddrHigh = putPaddrHigh(pdma_addr);
phba->pcb->pgpAddrLow = putPaddrLow(pdma_addr);
/* Use callback routine to setp rings in the pcb */
lpfc_config_pcb_setup(phba);
/* special handling for LC HBAs */
if (lpfc_is_LC_HBA(phba->pcidev->device)) {
uint32_t hbainit[5];
lpfc_hba_init(phba, hbainit);
memcpy(&mb->un.varCfgPort.hbainit, hbainit, 20);
}
/* Swap PCB if needed */
lpfc_sli_pcimem_bcopy(phba->pcb, phba->pcb, sizeof(PCB_t));
}
/**
* lpfc_kill_board: Prepare a mailbox command for killing board.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The kill board mailbox command is used to tell firmware to perform a
* graceful shutdown of a channel on a specified board to prepare for reset.
* When the kill board mailbox command is received, the ER3 bit is set to 1
* in the Host Status register and the ER Attention bit is set to 1 in the
* Host Attention register of the HBA function that received the kill board
* command.
*
* This routine prepares the mailbox command for killing the board in
* preparation for a graceful shutdown.
**/
void
lpfc_kill_board(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb = &pmb->mb;
memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
mb->mbxCommand = MBX_KILL_BOARD;
mb->mbxOwner = OWN_HOST;
return;
}
/**
* lpfc_mbox_put: Put a mailbox cmd into the tail of driver's mailbox queue.
* @phba: pointer to lpfc hba data structure.
* @mbq: pointer to the driver internal queue element for mailbox command.
*
* Driver maintains a internal mailbox command queue implemented as a linked
* list. When a mailbox command is issued, it shall be put into the mailbox
* command queue such that they shall be processed orderly as HBA can process
* one mailbox command at a time.
**/
void
lpfc_mbox_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq)
{
struct lpfc_sli *psli;
psli = &phba->sli;
list_add_tail(&mbq->list, &psli->mboxq);
psli->mboxq_cnt++;
return;
}
/**
* lpfc_mbox_get: Remove a mailbox cmd from the head of driver's mailbox queue.
* @phba: pointer to lpfc hba data structure.
*
* Driver maintains a internal mailbox command queue implemented as a linked
* list. When a mailbox command is issued, it shall be put into the mailbox
* command queue such that they shall be processed orderly as HBA can process
* one mailbox command at a time. After HBA finished processing a mailbox
* command, the driver will remove a pending mailbox command from the head of
* the mailbox command queue and send to the HBA for processing.
*
* Return codes
* pointer to the driver internal queue element for mailbox command.
**/
LPFC_MBOXQ_t *
lpfc_mbox_get(struct lpfc_hba * phba)
{
LPFC_MBOXQ_t *mbq = NULL;
struct lpfc_sli *psli = &phba->sli;
list_remove_head((&psli->mboxq), mbq, LPFC_MBOXQ_t, list);
if (mbq)
psli->mboxq_cnt--;
return mbq;
}
/**
* lpfc_mbox_cmpl_put: Put mailbox command into mailbox command complete list.
* @phba: pointer to lpfc hba data structure.
* @mbq: pointer to the driver internal queue element for mailbox command.
*
* This routine put the completed mailbox command into the mailbox command
* complete list. This routine is called from driver interrupt handler
* context.The mailbox complete list is used by the driver worker thread
* to process mailbox complete callback functions outside the driver interrupt
* handler.
**/
void
lpfc_mbox_cmpl_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq)
{
/* This function expects to be called from interrupt context */
spin_lock(&phba->hbalock);
list_add_tail(&mbq->list, &phba->sli.mboxq_cmpl);
spin_unlock(&phba->hbalock);
return;
}
/**
* lpfc_mbox_tmo_val: Retrieve mailbox command timeout value.
* @phba: pointer to lpfc hba data structure.
* @cmd: mailbox command code.
*
* This routine retrieves the proper timeout value according to the mailbox
* command code.
*
* Return codes
* Timeout value to be used for the given mailbox command
**/
int
lpfc_mbox_tmo_val(struct lpfc_hba *phba, int cmd)
{
switch (cmd) {
case MBX_WRITE_NV: /* 0x03 */
case MBX_UPDATE_CFG: /* 0x1B */
case MBX_DOWN_LOAD: /* 0x1C */
case MBX_DEL_LD_ENTRY: /* 0x1D */
case MBX_LOAD_AREA: /* 0x81 */
case MBX_WRITE_WWN: /* 0x98 */
case MBX_LOAD_EXP_ROM: /* 0x9C */
return LPFC_MBOX_TMO_FLASH_CMD;
}
return LPFC_MBOX_TMO;
}
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