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[SCSI] lpfc 8.3.10: Added round robin FCF failover 

- Added round robin FCF failover on initial or FCF rediscovery FLOGI failure.

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
James Smart 2010-02-26 14:15:57 -05:00 committed by James Bottomley
parent fc2b989be9
commit 0c9ab6f5cb
8 changed files with 802 additions and 162 deletions
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4
drivers/scsi/lpfc/lpfc_crtn.h
View File

@ -63,6 +63,7 @@ void lpfc_linkdown_port(struct lpfc_vport *);
void lpfc_port_link_failure(struct lpfc_vport *);
void lpfc_mbx_cmpl_read_la(struct lpfc_hba *, LPFC_MBOXQ_t *);
void lpfc_init_vpi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
void lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *);
void lpfc_retry_pport_discovery(struct lpfc_hba *);
void lpfc_mbx_cmpl_reg_login(struct lpfc_hba *, LPFC_MBOXQ_t *);
@ -222,6 +223,9 @@ void lpfc_unregister_unused_fcf(struct lpfc_hba *);
int lpfc_sli4_redisc_fcf_table(struct lpfc_hba *);
void lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *);
void lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *);
uint16_t lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *);
int lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *, uint16_t);
void lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *, uint16_t);
int lpfc_mem_alloc(struct lpfc_hba *, int align);
void lpfc_mem_free(struct lpfc_hba *);

91
drivers/scsi/lpfc/lpfc_els.c
View File

@ -771,6 +771,7 @@ lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
struct lpfc_nodelist *ndlp = cmdiocb->context1;
struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
struct serv_parm *sp;
uint16_t fcf_index;
int rc;
/* Check to see if link went down during discovery */
@ -788,6 +789,54 @@ lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
vport->port_state);
if (irsp->ulpStatus) {
/*
* In case of FIP mode, perform round robin FCF failover
* due to new FCF discovery
*/
if ((phba->hba_flag & HBA_FIP_SUPPORT) &&
(phba->fcf.fcf_flag & FCF_DISCOVERY)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
"2611 FLOGI failed on registered "
"FCF record fcf_index:%d, trying "
"to perform round robin failover\n",
phba->fcf.current_rec.fcf_indx);
fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
if (fcf_index == LPFC_FCOE_FCF_NEXT_NONE) {
/*
* Exhausted the eligible FCF record list,
* fail through to retry FLOGI on current
* FCF record.
*/
lpfc_printf_log(phba, KERN_WARNING,
LOG_FIP | LOG_ELS,
"2760 FLOGI exhausted FCF "
"round robin failover list, "
"retry FLOGI on the current "
"registered FCF index:%d\n",
phba->fcf.current_rec.fcf_indx);
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
spin_unlock_irq(&phba->hbalock);
} else {
rc = lpfc_sli4_fcf_rr_read_fcf_rec(phba,
fcf_index);
if (rc) {
lpfc_printf_log(phba, KERN_WARNING,
LOG_FIP | LOG_ELS,
"2761 FLOGI round "
"robin FCF failover "
"read FCF failed "
"rc:x%x, fcf_index:"
"%d\n", rc,
phba->fcf.current_rec.fcf_indx);
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
spin_unlock_irq(&phba->hbalock);
} else
goto out;
}
}
/* Check for retry */
if (lpfc_els_retry(phba, cmdiocb, rspiocb))
goto out;
@ -841,8 +890,18 @@ lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
else
rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp);
if (!rc)
if (!rc) {
/* Mark the FCF discovery process done */
lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP | LOG_ELS,
"2769 FLOGI successful on FCF record: "
"current_fcf_index:x%x, terminate FCF "
"round robin failover process\n",
phba->fcf.current_rec.fcf_indx);
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
spin_unlock_irq(&phba->hbalock);
goto out;
}
}
flogifail:
@ -6075,21 +6134,18 @@ mbox_err_exit:
}
/**
* lpfc_retry_pport_discovery - Start timer to retry FLOGI.
* lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
* @phba: pointer to lpfc hba data structure.
*
* This routine abort all pending discovery commands and
* start a timer to retry FLOGI for the physical port
* discovery.
* This routine cancels the retry delay timers to all the vports.
**/
void
lpfc_retry_pport_discovery(struct lpfc_hba *phba)
lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
struct lpfc_nodelist *ndlp;
struct Scsi_Host *shost;
int i;
uint32_t link_state;
int i;
/* Treat this failure as linkdown for all vports */
link_state = phba->link_state;
@ -6107,13 +6163,30 @@ lpfc_retry_pport_discovery(struct lpfc_hba *phba)
}
lpfc_destroy_vport_work_array(phba, vports);
}
}
/**
* lpfc_retry_pport_discovery - Start timer to retry FLOGI.
* @phba: pointer to lpfc hba data structure.
*
* This routine abort all pending discovery commands and
* start a timer to retry FLOGI for the physical port
* discovery.
**/
void
lpfc_retry_pport_discovery(struct lpfc_hba *phba)
{
struct lpfc_nodelist *ndlp;
struct Scsi_Host *shost;
/* Cancel the all vports retry delay retry timers */
lpfc_cancel_all_vport_retry_delay_timer(phba);
/* If fabric require FLOGI, then re-instantiate physical login */
ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
if (!ndlp)
return;
shost = lpfc_shost_from_vport(phba->pport);
mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
spin_lock_irq(shost->host_lock);

486
drivers/scsi/lpfc/lpfc_hbadisc.c
View File

@ -1481,8 +1481,6 @@ lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
int
lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
{
LPFC_MBOXQ_t *mbox;
int rc;
/*
* If the Link is up and no FCoE events while in the
* FCF discovery, no need to restart FCF discovery.
@ -1491,88 +1489,70 @@ lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
(phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))
return 0;
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2768 Pending link or FCF event during current "
"handling of the previous event: link_state:x%x, "
"evt_tag_at_scan:x%x, evt_tag_current:x%x\n",
phba->link_state, phba->fcoe_eventtag_at_fcf_scan,
phba->fcoe_eventtag);
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_AVAILABLE;
spin_unlock_irq(&phba->hbalock);
if (phba->link_state >= LPFC_LINK_UP)
lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST);
else {
if (phba->link_state >= LPFC_LINK_UP) {
lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
"2780 Restart FCF table scan due to "
"pending FCF event:evt_tag_at_scan:x%x, "
"evt_tag_current:x%x\n",
phba->fcoe_eventtag_at_fcf_scan,
phba->fcoe_eventtag);
lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
} else {
/*
* Do not continue FCF discovery and clear FCF_DISC_INPROGRESS
* flag
*/
spin_lock_irq(&phba->hbalock);
phba->hba_flag &= ~FCF_DISC_INPROGRESS;
phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV |
FCF_DEAD_FOVER |
FCF_CVL_FOVER);
phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV | FCF_DISCOVERY);
spin_unlock_irq(&phba->hbalock);
}
/* Unregister the currently registered FCF if required */
if (unreg_fcf) {
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_REGISTERED;
spin_unlock_irq(&phba->hbalock);
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
lpfc_printf_log(phba, KERN_ERR,
LOG_DISCOVERY|LOG_MBOX,
"2610 UNREG_FCFI mbox allocation failed\n");
return 1;
}
lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
mbox->vport = phba->pport;
mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
"2611 UNREG_FCFI issue mbox failed\n");
mempool_free(mbox, phba->mbox_mem_pool);
}
lpfc_sli4_unregister_fcf(phba);
}
return 1;
}
/**
* lpfc_mbx_cmpl_read_fcf_record - Completion handler for read_fcf mbox.
* lpfc_sli4_fcf_rec_mbox_parse - parse non-embedded fcf record mailbox command
* @phba: pointer to lpfc hba data structure.
* @mboxq: pointer to mailbox object.
* @next_fcf_index: pointer to holder of next fcf index.
*
* This function iterate through all the fcf records available in
* HBA and choose the optimal FCF record for discovery. After finding
* the FCF for discovery it register the FCF record and kick start
* discovery.
* If FCF_IN_USE flag is set in currently used FCF, the routine try to
* use a FCF record which match fabric name and mac address of the
* currently used FCF record.
* If the driver support only one FCF, it will try to use the FCF record
* used by BOOT_BIOS.
* This routine parses the non-embedded fcf mailbox command by performing the
* necessarily error checking, non-embedded read FCF record mailbox command
* SGE parsing, and endianness swapping.
*
* Returns the pointer to the new FCF record in the non-embedded mailbox
* command DMA memory if successfully, other NULL.
*/
void
lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
static struct fcf_record *
lpfc_sli4_fcf_rec_mbox_parse(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
uint16_t *next_fcf_index)
{
void *virt_addr;
dma_addr_t phys_addr;
uint8_t *bytep;
struct lpfc_mbx_sge sge;
struct lpfc_mbx_read_fcf_tbl *read_fcf;
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
struct fcf_record *new_fcf_record;
uint32_t boot_flag, addr_mode;
uint32_t next_fcf_index;
struct lpfc_fcf_rec *fcf_rec = NULL;
unsigned long iflags;
uint16_t vlan_id;
int rc;
/* If there is pending FCoE event restart FCF table scan */
if (lpfc_check_pending_fcoe_event(phba, 0)) {
lpfc_sli4_mbox_cmd_free(phba, mboxq);
return;
}
/* Get the first SGE entry from the non-embedded DMA memory. This
* routine only uses a single SGE.
@ -1583,59 +1563,183 @@ lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
"2524 Failed to get the non-embedded SGE "
"virtual address\n");
goto out;
return NULL;
}
virt_addr = mboxq->sge_array->addr[0];
shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
&shdr->response);
/*
* The FCF Record was read and there is no reason for the driver
* to maintain the FCF record data or memory. Instead, just need
* to book keeping the FCFIs can be used.
*/
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
if (shdr_status || shdr_add_status) {
if (shdr_status == STATUS_FCF_TABLE_EMPTY) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
if (shdr_status == STATUS_FCF_TABLE_EMPTY)
lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
"2726 READ_FCF_RECORD Indicates empty "
"FCF table.\n");
} else {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
else
lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
"2521 READ_FCF_RECORD mailbox failed "
"with status x%x add_status x%x, mbx\n",
shdr_status, shdr_add_status);
}
goto out;
"with status x%x add_status x%x, "
"mbx\n", shdr_status, shdr_add_status);
return NULL;
}
/* Interpreting the returned information of FCF records */
/* Interpreting the returned information of the FCF record */
read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
sizeof(struct lpfc_mbx_read_fcf_tbl));
next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
*next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
new_fcf_record = (struct fcf_record *)(virt_addr +
sizeof(struct lpfc_mbx_read_fcf_tbl));
lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
sizeof(struct fcf_record));
bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
return new_fcf_record;
}
/**
* lpfc_sli4_log_fcf_record_info - Log the information of a fcf record
* @phba: pointer to lpfc hba data structure.
* @fcf_record: pointer to the fcf record.
* @vlan_id: the lowest vlan identifier associated to this fcf record.
* @next_fcf_index: the index to the next fcf record in hba's fcf table.
*
* This routine logs the detailed FCF record if the LOG_FIP loggin is
* enabled.
**/
static void
lpfc_sli4_log_fcf_record_info(struct lpfc_hba *phba,
struct fcf_record *fcf_record,
uint16_t vlan_id,
uint16_t next_fcf_index)
{
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2764 READ_FCF_RECORD:\n"
"\tFCF_Index : x%x\n"
"\tFCF_Avail : x%x\n"
"\tFCF_Valid : x%x\n"
"\tFIP_Priority : x%x\n"
"\tMAC_Provider : x%x\n"
"\tLowest VLANID : x%x\n"
"\tFCF_MAC Addr : x%x:%x:%x:%x:%x:%x\n"
"\tFabric_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
"\tSwitch_Name : x%x:%x:%x:%x:%x:%x:%x:%x\n"
"\tNext_FCF_Index: x%x\n",
bf_get(lpfc_fcf_record_fcf_index, fcf_record),
bf_get(lpfc_fcf_record_fcf_avail, fcf_record),
bf_get(lpfc_fcf_record_fcf_valid, fcf_record),
fcf_record->fip_priority,
bf_get(lpfc_fcf_record_mac_addr_prov, fcf_record),
vlan_id,
bf_get(lpfc_fcf_record_mac_0, fcf_record),
bf_get(lpfc_fcf_record_mac_1, fcf_record),
bf_get(lpfc_fcf_record_mac_2, fcf_record),
bf_get(lpfc_fcf_record_mac_3, fcf_record),
bf_get(lpfc_fcf_record_mac_4, fcf_record),
bf_get(lpfc_fcf_record_mac_5, fcf_record),
bf_get(lpfc_fcf_record_fab_name_0, fcf_record),
bf_get(lpfc_fcf_record_fab_name_1, fcf_record),
bf_get(lpfc_fcf_record_fab_name_2, fcf_record),
bf_get(lpfc_fcf_record_fab_name_3, fcf_record),
bf_get(lpfc_fcf_record_fab_name_4, fcf_record),
bf_get(lpfc_fcf_record_fab_name_5, fcf_record),
bf_get(lpfc_fcf_record_fab_name_6, fcf_record),
bf_get(lpfc_fcf_record_fab_name_7, fcf_record),
bf_get(lpfc_fcf_record_switch_name_0, fcf_record),
bf_get(lpfc_fcf_record_switch_name_1, fcf_record),
bf_get(lpfc_fcf_record_switch_name_2, fcf_record),
bf_get(lpfc_fcf_record_switch_name_3, fcf_record),
bf_get(lpfc_fcf_record_switch_name_4, fcf_record),
bf_get(lpfc_fcf_record_switch_name_5, fcf_record),
bf_get(lpfc_fcf_record_switch_name_6, fcf_record),
bf_get(lpfc_fcf_record_switch_name_7, fcf_record),
next_fcf_index);
}
/**
* lpfc_mbx_cmpl_fcf_scan_read_fcf_rec - fcf scan read_fcf mbox cmpl handler.
* @phba: pointer to lpfc hba data structure.
* @mboxq: pointer to mailbox object.
*
* This function iterates through all the fcf records available in
* HBA and chooses the optimal FCF record for discovery. After finding
* the FCF for discovery it registers the FCF record and kicks start
* discovery.
* If FCF_IN_USE flag is set in currently used FCF, the routine tries to
* use an FCF record which matches fabric name and mac address of the
* currently used FCF record.
* If the driver supports only one FCF, it will try to use the FCF record
* used by BOOT_BIOS.
*/
void
lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
struct fcf_record *new_fcf_record;
uint32_t boot_flag, addr_mode;
uint16_t fcf_index, next_fcf_index;
struct lpfc_fcf_rec *fcf_rec = NULL;
uint16_t vlan_id;
int rc;
/* If there is pending FCoE event restart FCF table scan */
if (lpfc_check_pending_fcoe_event(phba, 0)) {
lpfc_sli4_mbox_cmd_free(phba, mboxq);
return;
}
/* Parse the FCF record from the non-embedded mailbox command */
new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
&next_fcf_index);
if (!new_fcf_record) {
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
"2765 Mailbox command READ_FCF_RECORD "
"failed to retrieve a FCF record.\n");
/* Let next new FCF event trigger fast failover */
spin_lock_irq(&phba->hbalock);
phba->hba_flag &= ~FCF_DISC_INPROGRESS;
spin_unlock_irq(&phba->hbalock);
lpfc_sli4_mbox_cmd_free(phba, mboxq);
return;
}
/* Check the FCF record against the connection list */
rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
&addr_mode, &vlan_id);
/* Log the FCF record information if turned on */
lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
next_fcf_index);
/*
* If the fcf record does not match with connect list entries
* read the next entry.
* read the next entry; otherwise, this is an eligible FCF
* record for round robin FCF failover.
*/
if (!rc)
if (!rc) {
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
"2781 FCF record fcf_index:x%x failed FCF "
"connection list check, fcf_avail:x%x, "
"fcf_valid:x%x\n",
bf_get(lpfc_fcf_record_fcf_index,
new_fcf_record),
bf_get(lpfc_fcf_record_fcf_avail,
new_fcf_record),
bf_get(lpfc_fcf_record_fcf_valid,
new_fcf_record));
goto read_next_fcf;
} else {
fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
rc = lpfc_sli4_fcf_rr_index_set(phba, fcf_index);
if (rc)
goto read_next_fcf;
}
/*
* If this is not the first FCF discovery of the HBA, use last
* FCF record for the discovery. The condition that a rescan
* matches the in-use FCF record: fabric name, switch name, mac
* address, and vlan_id.
*/
spin_lock_irqsave(&phba->hbalock, iflags);
spin_lock_irq(&phba->hbalock);
if (phba->fcf.fcf_flag & FCF_IN_USE) {
if (lpfc_fab_name_match(phba->fcf.current_rec.fabric_name,
new_fcf_record) &&
@ -1652,9 +1756,8 @@ lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
else if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
/* If in fast failover, mark it's completed */
phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV |
FCF_DEAD_FOVER |
FCF_CVL_FOVER);
spin_unlock_irqrestore(&phba->hbalock, iflags);
FCF_DISCOVERY);
spin_unlock_irq(&phba->hbalock);
goto out;
}
/*
@ -1665,7 +1768,7 @@ lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
* next candidate.
*/
if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
spin_unlock_irqrestore(&phba->hbalock, iflags);
spin_unlock_irq(&phba->hbalock);
goto read_next_fcf;
}
}
@ -1688,7 +1791,7 @@ lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
/* Choose this FCF record */
__lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
addr_mode, vlan_id, BOOT_ENABLE);
spin_unlock_irqrestore(&phba->hbalock, iflags);
spin_unlock_irq(&phba->hbalock);
goto read_next_fcf;
}
/*
@ -1697,7 +1800,7 @@ lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
* the next FCF record.
*/
if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) {
spin_unlock_irqrestore(&phba->hbalock, iflags);
spin_unlock_irq(&phba->hbalock);
goto read_next_fcf;
}
/*
@ -1709,7 +1812,7 @@ lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
__lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
addr_mode, vlan_id, 0);
}
spin_unlock_irqrestore(&phba->hbalock, iflags);
spin_unlock_irq(&phba->hbalock);
goto read_next_fcf;
}
/*
@ -1722,7 +1825,7 @@ lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
BOOT_ENABLE : 0));
phba->fcf.fcf_flag |= FCF_AVAILABLE;
}
spin_unlock_irqrestore(&phba->hbalock, iflags);
spin_unlock_irq(&phba->hbalock);
goto read_next_fcf;
read_next_fcf:
@ -1738,9 +1841,22 @@ read_next_fcf:
* FCF scan inprogress, and do nothing
*/
if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) {
spin_lock_irqsave(&phba->hbalock, iflags);
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
"2782 No suitable FCF record "
"found during this round of "
"post FCF rediscovery scan: "
"fcf_evt_tag:x%x, fcf_index: "
"x%x\n",
phba->fcoe_eventtag_at_fcf_scan,
bf_get(lpfc_fcf_record_fcf_index,
new_fcf_record));
/*
* Let next new FCF event trigger fast
* failover
*/
spin_lock_irq(&phba->hbalock);
phba->hba_flag &= ~FCF_DISC_INPROGRESS;
spin_unlock_irqrestore(&phba->hbalock, iflags);
spin_unlock_irq(&phba->hbalock);
return;
}
/*
@ -1752,18 +1868,23 @@ read_next_fcf:
* record.
*/
/* unregister the current in-use FCF record */
/* Unregister the current in-use FCF record */
lpfc_unregister_fcf(phba);
/* replace in-use record with the new record */
/* Replace in-use record with the new record */
memcpy(&phba->fcf.current_rec,
&phba->fcf.failover_rec,
sizeof(struct lpfc_fcf_rec));
/* mark the FCF fast failover completed */
spin_lock_irqsave(&phba->hbalock, iflags);
phba->fcf.fcf_flag &= ~(FCF_REDISC_FOV |
FCF_DEAD_FOVER |
FCF_CVL_FOVER);
spin_unlock_irqrestore(&phba->hbalock, iflags);
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
spin_unlock_irq(&phba->hbalock);
/*
* Set up the initial registered FCF index for FLOGI
* round robin FCF failover.
*/
phba->fcf.fcf_rr_init_indx =
phba->fcf.failover_rec.fcf_indx;
/* Register to the new FCF record */
lpfc_register_fcf(phba);
} else {
@ -1776,13 +1897,25 @@ read_next_fcf:
return;
/*
* Otherwise, initial scan or post linkdown rescan,
* register with the best fit FCF record found so
* far through the scanning process.
* register with the best FCF record found so far
* through the FCF scanning process.
*/
/* mark the initial FCF discovery completed */
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
spin_unlock_irq(&phba->hbalock);
/*
* Set up the initial registered FCF index for FLOGI
* round robin FCF failover
*/
phba->fcf.fcf_rr_init_indx =
phba->fcf.current_rec.fcf_indx;
/* Register to the new FCF record */
lpfc_register_fcf(phba);
}
} else
lpfc_sli4_read_fcf_record(phba, next_fcf_index);
lpfc_sli4_fcf_scan_read_fcf_rec(phba, next_fcf_index);
return;
out:
@ -1792,6 +1925,141 @@ out:
return;
}
/**
* lpfc_mbx_cmpl_fcf_rr_read_fcf_rec - fcf round robin read_fcf mbox cmpl hdler
* @phba: pointer to lpfc hba data structure.
* @mboxq: pointer to mailbox object.
*
* This is the callback function for FLOGI failure round robin FCF failover
* read FCF record mailbox command from the eligible FCF record bmask for
* performing the failover. If the FCF read back is not valid/available, it
* fails through to retrying FLOGI to the currently registered FCF again.
* Otherwise, if the FCF read back is valid and available, it will set the
* newly read FCF record to the failover FCF record, unregister currently
* registered FCF record, copy the failover FCF record to the current
* FCF record, and then register the current FCF record before proceeding
* to trying FLOGI on the new failover FCF.
*/
void
lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
struct fcf_record *new_fcf_record;
uint32_t boot_flag, addr_mode;
uint16_t next_fcf_index;
uint16_t current_fcf_index;
uint16_t vlan_id;
/* If link state is not up, stop the round robin failover process */
if (phba->link_state < LPFC_LINK_UP) {
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
spin_unlock_irq(&phba->hbalock);
lpfc_sli4_mbox_cmd_free(phba, mboxq);
return;
}
/* Parse the FCF record from the non-embedded mailbox command */
new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
&next_fcf_index);
if (!new_fcf_record) {
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
"2766 Mailbox command READ_FCF_RECORD "
"failed to retrieve a FCF record.\n");
goto out;
}
/* Get the needed parameters from FCF record */
lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
&addr_mode, &vlan_id);
/* Log the FCF record information if turned on */
lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
next_fcf_index);
/* Upload new FCF record to the failover FCF record */
spin_lock_irq(&phba->hbalock);
__lpfc_update_fcf_record(phba, &phba->fcf.failover_rec,
new_fcf_record, addr_mode, vlan_id,
(boot_flag ? BOOT_ENABLE : 0));
spin_unlock_irq(&phba->hbalock);
current_fcf_index = phba->fcf.current_rec.fcf_indx;
/* Unregister the current in-use FCF record */
lpfc_unregister_fcf(phba);
/* Replace in-use record with the new record */
memcpy(&phba->fcf.current_rec, &phba->fcf.failover_rec,
sizeof(struct lpfc_fcf_rec));
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2783 FLOGI round robin FCF failover from FCF "
"(index:x%x) to FCF (index:x%x).\n",
current_fcf_index,
bf_get(lpfc_fcf_record_fcf_index, new_fcf_record));
out:
lpfc_sli4_mbox_cmd_free(phba, mboxq);
lpfc_register_fcf(phba);
}
/**
* lpfc_mbx_cmpl_read_fcf_rec - read fcf completion handler.
* @phba: pointer to lpfc hba data structure.
* @mboxq: pointer to mailbox object.
*
* This is the callback function of read FCF record mailbox command for
* updating the eligible FCF bmask for FLOGI failure round robin FCF
* failover when a new FCF event happened. If the FCF read back is
* valid/available and it passes the connection list check, it updates
* the bmask for the eligible FCF record for round robin failover.
*/
void
lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
struct fcf_record *new_fcf_record;
uint32_t boot_flag, addr_mode;
uint16_t fcf_index, next_fcf_index;
uint16_t vlan_id;
int rc;
/* If link state is not up, no need to proceed */
if (phba->link_state < LPFC_LINK_UP)
goto out;
/* If FCF discovery period is over, no need to proceed */
if (phba->fcf.fcf_flag & FCF_DISCOVERY)
goto out;
/* Parse the FCF record from the non-embedded mailbox command */
new_fcf_record = lpfc_sli4_fcf_rec_mbox_parse(phba, mboxq,
&next_fcf_index);
if (!new_fcf_record) {
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2767 Mailbox command READ_FCF_RECORD "
"failed to retrieve a FCF record.\n");
goto out;
}
/* Check the connection list for eligibility */
rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
&addr_mode, &vlan_id);
/* Log the FCF record information if turned on */
lpfc_sli4_log_fcf_record_info(phba, new_fcf_record, vlan_id,
next_fcf_index);
if (!rc)
goto out;
/* Update the eligible FCF record index bmask */
fcf_index = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
rc = lpfc_sli4_fcf_rr_index_set(phba, fcf_index);
out:
lpfc_sli4_mbox_cmd_free(phba, mboxq);
}
/**
* lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
* @phba: pointer to lpfc hba data structure.
@ -2190,10 +2458,20 @@ lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
spin_unlock_irq(&phba->hbalock);
return;
}
/* This is the initial FCF discovery scan */
phba->fcf.fcf_flag |= FCF_INIT_DISC;
spin_unlock_irq(&phba->hbalock);
rc = lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST);
if (rc)
lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
"2778 Start FCF table scan at linkup\n");
rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
LPFC_FCOE_FCF_GET_FIRST);
if (rc) {
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
spin_unlock_irq(&phba->hbalock);
goto out;
}
}
return;
@ -3383,8 +3661,12 @@ lpfc_unreg_hba_rpis(struct lpfc_hba *phba)
shost = lpfc_shost_from_vport(vports[i]);
spin_lock_irq(shost->host_lock);
list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
if (ndlp->nlp_flag & NLP_RPI_VALID)
if (ndlp->nlp_flag & NLP_RPI_VALID) {
/* The mempool_alloc might sleep */
spin_unlock_irq(shost->host_lock);
lpfc_unreg_rpi(vports[i], ndlp);
spin_lock_irq(shost->host_lock);
}
}
spin_unlock_irq(shost->host_lock);
}
@ -4770,13 +5052,21 @@ lpfc_unregister_fcf_rescan(struct lpfc_hba *phba)
(phba->link_state < LPFC_LINK_UP))
return;
rc = lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST);
/* This is considered as the initial FCF discovery scan */
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag |= FCF_INIT_DISC;
spin_unlock_irq(&phba->hbalock);
rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
if (rc)
if (rc) {
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_INIT_DISC;
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
"2553 lpfc_unregister_unused_fcf failed "
"to read FCF record HBA state x%x\n",
phba->pport->port_state);
}
}
/**

123
drivers/scsi/lpfc/lpfc_init.c
View File

@ -2201,8 +2201,8 @@ __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
{
/* Clear pending FCF rediscovery wait and failover in progress flags */
phba->fcf.fcf_flag &= ~(FCF_REDISC_PEND |
FCF_DEAD_FOVER |
FCF_CVL_FOVER);
FCF_DEAD_DISC |
FCF_ACVL_DISC);
/* Now, try to stop the timer */
del_timer(&phba->fcf.redisc_wait);
}
@ -2943,6 +2943,9 @@ lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
/* FCF rediscovery event to worker thread */
phba->fcf.fcf_flag |= FCF_REDISC_EVT;
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2776 FCF rediscover wait timer expired, post "
"a worker thread event for FCF table scan\n");
/* wake up worker thread */
lpfc_worker_wake_up(phba);
}
@ -3300,10 +3303,11 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
switch (event_type) {
case LPFC_FCOE_EVENT_TYPE_NEW_FCF:
case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD:
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
"2546 New FCF found index 0x%x tag 0x%x\n",
acqe_fcoe->index,
acqe_fcoe->event_tag);
lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
"2546 New FCF found/FCF parameter modified event: "
"evt_tag:x%x, fcf_index:x%x\n",
acqe_fcoe->event_tag, acqe_fcoe->index);
spin_lock_irq(&phba->hbalock);
if ((phba->fcf.fcf_flag & FCF_SCAN_DONE) ||
(phba->hba_flag & FCF_DISC_INPROGRESS)) {
@ -3314,6 +3318,7 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
spin_unlock_irq(&phba->hbalock);
break;
}
if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
/*
* If fast FCF failover rescan event is pending,
@ -3324,12 +3329,33 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
}
spin_unlock_irq(&phba->hbalock);
/* Read the FCF table and re-discover SAN. */
rc = lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST);
if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
/*
* During period of FCF discovery, read the FCF
* table record indexed by the event to update
* FCF round robin failover eligible FCF bmask.
*/
lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
LOG_DISCOVERY,
"2779 Read new FCF record with "
"fcf_index:x%x for updating FCF "
"round robin failover bmask\n",
acqe_fcoe->index);
rc = lpfc_sli4_read_fcf_rec(phba, acqe_fcoe->index);
}
/* Otherwise, scan the entire FCF table and re-discover SAN */
lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
"2770 Start FCF table scan due to new FCF "
"event: evt_tag:x%x, fcf_index:x%x\n",
acqe_fcoe->event_tag, acqe_fcoe->index);
rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
LPFC_FCOE_FCF_GET_FIRST);
if (rc)
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
"2547 Read FCF record failed 0x%x\n",
rc);
lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
"2547 Issue FCF scan read FCF mailbox "
"command failed 0x%x\n", rc);
break;
case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL:
@ -3340,7 +3366,7 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
break;
case LPFC_FCOE_EVENT_TYPE_FCF_DEAD:
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
"2549 FCF disconnected from network index 0x%x"
" tag 0x%x\n", acqe_fcoe->index,
acqe_fcoe->event_tag);
@ -3349,21 +3375,32 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
break;
/* We request port to rediscover the entire FCF table for
* a fast recovery from case that the current FCF record
* is no longer valid if the last CVL event hasn't already
* triggered process.
* is no longer valid if we are not in the middle of FCF
* failover process already.
*/
spin_lock_irq(&phba->hbalock);
if (phba->fcf.fcf_flag & FCF_CVL_FOVER) {
if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
spin_unlock_irq(&phba->hbalock);
/* Update FLOGI FCF failover eligible FCF bmask */
lpfc_sli4_fcf_rr_index_clear(phba, acqe_fcoe->index);
break;
}
/* Mark the fast failover process in progress */
phba->fcf.fcf_flag |= FCF_DEAD_FOVER;
phba->fcf.fcf_flag |= FCF_DEAD_DISC;
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
"2771 Start FCF fast failover process due to "
"FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
"\n", acqe_fcoe->event_tag, acqe_fcoe->index);
rc = lpfc_sli4_redisc_fcf_table(phba);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
LOG_DISCOVERY,
"2772 Issue FCF rediscover mabilbox "
"command failed, fail through to FCF "
"dead event\n");
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_DEAD_FOVER;
phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
spin_unlock_irq(&phba->hbalock);
/*
* Last resort will fail over by treating this
@ -3378,7 +3415,7 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
lpfc_sli4_perform_all_vport_cvl(phba);
break;
case LPFC_FCOE_EVENT_TYPE_CVL:
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
"2718 Clear Virtual Link Received for VPI 0x%x"
" tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag);
vport = lpfc_find_vport_by_vpid(phba,
@ -3419,21 +3456,31 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
* Otherwise, we request port to rediscover
* the entire FCF table for a fast recovery
* from possible case that the current FCF
* is no longer valid if the FCF_DEAD event
* hasn't already triggered process.
* is no longer valid if we are not already
* in the FCF failover process.
*/
spin_lock_irq(&phba->hbalock);
if (phba->fcf.fcf_flag & FCF_DEAD_FOVER) {
if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
spin_unlock_irq(&phba->hbalock);
break;
}
/* Mark the fast failover process in progress */
phba->fcf.fcf_flag |= FCF_CVL_FOVER;
phba->fcf.fcf_flag |= FCF_ACVL_DISC;
spin_unlock_irq(&phba->hbalock);
lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
LOG_DISCOVERY,
"2773 Start FCF fast failover due "
"to CVL event: evt_tag:x%x\n",
acqe_fcoe->event_tag);
rc = lpfc_sli4_redisc_fcf_table(phba);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
LOG_DISCOVERY,
"2774 Issue FCF rediscover "
"mabilbox command failed, "
"through to CVL event\n");
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_CVL_FOVER;
phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
spin_unlock_irq(&phba->hbalock);
/*
* Last resort will be re-try on the
@ -3537,11 +3584,14 @@ void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
spin_unlock_irq(&phba->hbalock);
/* Scan FCF table from the first entry to re-discover SAN */
rc = lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST);
lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
"2777 Start FCF table scan after FCF "
"rediscovery quiescent period over\n");
rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
if (rc)
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
"2747 Post FCF rediscovery read FCF record "
"failed 0x%x\n", rc);
lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
"2747 Issue FCF scan read FCF mailbox "
"command failed 0x%x\n", rc);
}
/**
@ -3833,6 +3883,7 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
struct lpfc_mqe *mqe;
int longs;
/* Before proceed, wait for POST done and device ready */
rc = lpfc_sli4_post_status_check(phba);
@ -4009,13 +4060,24 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
goto out_free_active_sgl;
}
/* Allocate eligible FCF bmask memory for FCF round robin failover */
longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
GFP_KERNEL);
if (!phba->fcf.fcf_rr_bmask) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2759 Failed allocate memory for FCF round "
"robin failover bmask\n");
goto out_remove_rpi_hdrs;
}
phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
phba->cfg_fcp_eq_count), GFP_KERNEL);
if (!phba->sli4_hba.fcp_eq_hdl) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2572 Failed allocate memory for fast-path "
"per-EQ handle array\n");
goto out_remove_rpi_hdrs;
goto out_free_fcf_rr_bmask;
}
phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
@ -4068,6 +4130,8 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
out_free_fcp_eq_hdl:
kfree(phba->sli4_hba.fcp_eq_hdl);
out_free_fcf_rr_bmask:
kfree(phba->fcf.fcf_rr_bmask);
out_remove_rpi_hdrs:
lpfc_sli4_remove_rpi_hdrs(phba);
out_free_active_sgl:
@ -4113,6 +4177,9 @@ lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
lpfc_sli4_remove_rpi_hdrs(phba);
lpfc_sli4_remove_rpis(phba);
/* Free eligible FCF index bmask */
kfree(phba->fcf.fcf_rr_bmask);
/* Free the ELS sgl list */
lpfc_free_active_sgl(phba);
lpfc_free_sgl_list(phba);

1
drivers/scsi/lpfc/lpfc_logmsg.h
View File

@ -35,6 +35,7 @@
#define LOG_VPORT 0x00004000 /* NPIV events */
#define LOF_SECURITY 0x00008000 /* Security events */
#define LOG_EVENT 0x00010000 /* CT,TEMP,DUMP, logging */
#define LOG_FIP 0x00020000 /* FIP events */
#define LOG_ALL_MSG 0xffffffff /* LOG all messages */
#define lpfc_printf_vlog(vport, level, mask, fmt, arg...) \

8
drivers/scsi/lpfc/lpfc_mbox.c
View File

@ -1748,7 +1748,7 @@ lpfc_sli4_mbox_opcode_get(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
}
/**
* lpfc_sli4_mbx_read_fcf_record - Allocate and construct read fcf mbox cmd
* lpfc_sli4_mbx_read_fcf_rec - Allocate and construct read fcf mbox cmd
* @phba: pointer to lpfc hba data structure.
* @fcf_index: index to fcf table.
*
@ -1759,9 +1759,9 @@ lpfc_sli4_mbox_opcode_get(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
* NULL.
**/
int
lpfc_sli4_mbx_read_fcf_record(struct lpfc_hba *phba,
struct lpfcMboxq *mboxq,
uint16_t fcf_index)
lpfc_sli4_mbx_read_fcf_rec(struct lpfc_hba *phba,
struct lpfcMboxq *mboxq,
uint16_t fcf_index)
{
void *virt_addr;
dma_addr_t phys_addr;

218
drivers/scsi/lpfc/lpfc_sli.c
View File

@ -11996,15 +11996,19 @@ lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
}
/**
* lpfc_sli4_read_fcf_record - Read the driver's default FCF Record.
* lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
* @phba: pointer to lpfc hba data structure.
* @fcf_index: FCF table entry offset.
*
* This routine is invoked to read up to @fcf_num of FCF record from the
* device starting with the given @fcf_index.
* This routine is invoked to scan the entire FCF table by reading FCF
* record and processing it one at a time starting from the @fcf_index
* for initial FCF discovery or fast FCF failover rediscovery.
*
* Return 0 if the mailbox command is submitted sucessfully, none 0
* otherwise.
**/
int
lpfc_sli4_read_fcf_record(struct lpfc_hba *phba, uint16_t fcf_index)
lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
{
int rc = 0, error;
LPFC_MBOXQ_t *mboxq;
@ -12016,17 +12020,17 @@ lpfc_sli4_read_fcf_record(struct lpfc_hba *phba, uint16_t fcf_index)
"2000 Failed to allocate mbox for "
"READ_FCF cmd\n");
error = -ENOMEM;
goto fail_fcfscan;
goto fail_fcf_scan;
}
/* Construct the read FCF record mailbox command */
rc = lpfc_sli4_mbx_read_fcf_record(phba, mboxq, fcf_index);
rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
if (rc) {
error = -EINVAL;
goto fail_fcfscan;
goto fail_fcf_scan;
}
/* Issue the mailbox command asynchronously */
mboxq->vport = phba->pport;
mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_record;
mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED)
error = -EIO;
@ -12034,9 +12038,13 @@ lpfc_sli4_read_fcf_record(struct lpfc_hba *phba, uint16_t fcf_index)
spin_lock_irq(&phba->hbalock);
phba->hba_flag |= FCF_DISC_INPROGRESS;
spin_unlock_irq(&phba->hbalock);
/* Reset FCF round robin index bmask for new scan */
if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
memset(phba->fcf.fcf_rr_bmask, 0,
sizeof(*phba->fcf.fcf_rr_bmask));
error = 0;
}
fail_fcfscan:
fail_fcf_scan:
if (error) {
if (mboxq)
lpfc_sli4_mbox_cmd_free(phba, mboxq);
@ -12048,6 +12056,181 @@ fail_fcfscan:
return error;
}
/**
* lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for round robin fcf.
* @phba: pointer to lpfc hba data structure.
* @fcf_index: FCF table entry offset.
*
* This routine is invoked to read an FCF record indicated by @fcf_index
* and to use it for FLOGI round robin FCF failover.
*
* Return 0 if the mailbox command is submitted sucessfully, none 0
* otherwise.
**/
int
lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
{
int rc = 0, error;
LPFC_MBOXQ_t *mboxq;
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq) {
lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
"2763 Failed to allocate mbox for "
"READ_FCF cmd\n");
error = -ENOMEM;
goto fail_fcf_read;
}
/* Construct the read FCF record mailbox command */
rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
if (rc) {
error = -EINVAL;
goto fail_fcf_read;
}
/* Issue the mailbox command asynchronously */
mboxq->vport = phba->pport;
mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED)
error = -EIO;
else
error = 0;
fail_fcf_read:
if (error && mboxq)
lpfc_sli4_mbox_cmd_free(phba, mboxq);
return error;
}
/**
* lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
* @phba: pointer to lpfc hba data structure.
* @fcf_index: FCF table entry offset.
*
* This routine is invoked to read an FCF record indicated by @fcf_index to
* determine whether it's eligible for FLOGI round robin failover list.
*
* Return 0 if the mailbox command is submitted sucessfully, none 0
* otherwise.
**/
int
lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
{
int rc = 0, error;
LPFC_MBOXQ_t *mboxq;
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq) {
lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
"2758 Failed to allocate mbox for "
"READ_FCF cmd\n");
error = -ENOMEM;
goto fail_fcf_read;
}
/* Construct the read FCF record mailbox command */
rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
if (rc) {
error = -EINVAL;
goto fail_fcf_read;
}
/* Issue the mailbox command asynchronously */
mboxq->vport = phba->pport;
mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED)
error = -EIO;
else
error = 0;
fail_fcf_read:
if (error && mboxq)
lpfc_sli4_mbox_cmd_free(phba, mboxq);
return error;
}
/**
* lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
* @phba: pointer to lpfc hba data structure.
*
* This routine is to get the next eligible FCF record index in a round
* robin fashion. If the next eligible FCF record index equals to the
* initial round robin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
* shall be returned, otherwise, the next eligible FCF record's index
* shall be returned.
**/
uint16_t
lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
{
uint16_t next_fcf_index;
/* Search from the currently registered FCF index */
next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
LPFC_SLI4_FCF_TBL_INDX_MAX,
phba->fcf.current_rec.fcf_indx);
/* Wrap around condition on phba->fcf.fcf_rr_bmask */
if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
/* Round robin failover stop condition */
if (next_fcf_index == phba->fcf.fcf_rr_init_indx)
return LPFC_FCOE_FCF_NEXT_NONE;
return next_fcf_index;
}
/**
* lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
* @phba: pointer to lpfc hba data structure.
*
* This routine sets the FCF record index in to the eligible bmask for
* round robin failover search. It checks to make sure that the index
* does not go beyond the range of the driver allocated bmask dimension
* before setting the bit.
*
* Returns 0 if the index bit successfully set, otherwise, it returns
* -EINVAL.
**/
int
lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
{
if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
"2610 HBA FCF index reached driver's "
"book keeping dimension: fcf_index:%d, "
"driver_bmask_max:%d\n",
fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
return -EINVAL;
}
/* Set the eligible FCF record index bmask */
set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
return 0;
}
/**
* lpfc_sli4_fcf_rr_index_set - Clear bmask from eligible fcf record index
* @phba: pointer to lpfc hba data structure.
*
* This routine clears the FCF record index from the eligible bmask for
* round robin failover search. It checks to make sure that the index
* does not go beyond the range of the driver allocated bmask dimension
* before clearing the bit.
**/
void
lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
{
if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
"2762 HBA FCF index goes beyond driver's "
"book keeping dimension: fcf_index:%d, "
"driver_bmask_max:%d\n",
fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
return;
}
/* Clear the eligible FCF record index bmask */
clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
}
/**
* lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
* @phba: pointer to lpfc hba data structure.
@ -12069,13 +12252,13 @@ lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
&redisc_fcf->header.cfg_shdr.response);
if (shdr_status || shdr_add_status) {
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
"2746 Requesting for FCF rediscovery failed "
"status x%x add_status x%x\n",
shdr_status, shdr_add_status);
if (phba->fcf.fcf_flag & FCF_CVL_FOVER) {
if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_CVL_FOVER;
phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
spin_unlock_irq(&phba->hbalock);
/*
* CVL event triggered FCF rediscover request failed,
@ -12084,7 +12267,7 @@ lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
lpfc_retry_pport_discovery(phba);
} else {
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_DEAD_FOVER;
phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
spin_unlock_irq(&phba->hbalock);
/*
* DEAD FCF event triggered FCF rediscover request
@ -12093,12 +12276,16 @@ lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
*/
lpfc_sli4_fcf_dead_failthrough(phba);
}
} else
} else {
lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
"2775 Start FCF rediscovery quiescent period "
"wait timer before scaning FCF table\n");
/*
* Start FCF rediscovery wait timer for pending FCF
* before rescan FCF record table.
*/
lpfc_fcf_redisc_wait_start_timer(phba);
}
mempool_free(mbox, phba->mbox_mem_pool);
}
@ -12117,6 +12304,9 @@ lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
int rc, length;
/* Cancel retry delay timers to all vports before FCF rediscover */
lpfc_cancel_all_vport_retry_delay_timer(phba);
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,

33
drivers/scsi/lpfc/lpfc_sli4.h
View File

@ -153,17 +153,27 @@ struct lpfc_fcf {
#define FCF_REGISTERED 0x02 /* FCF registered with FW */
#define FCF_SCAN_DONE 0x04 /* FCF table scan done */
#define FCF_IN_USE 0x08 /* Atleast one discovery completed */
#define FCF_DEAD_FOVER 0x10 /* FCF DEAD triggered fast FCF failover */
#define FCF_CVL_FOVER 0x20 /* CVL triggered fast FCF failover */
#define FCF_REDISC_PEND 0x40 /* FCF rediscovery pending */
#define FCF_REDISC_EVT 0x80 /* FCF rediscovery event to worker thread */
#define FCF_REDISC_FOV 0x100 /* Post FCF rediscovery fast failover */
#define FCF_INIT_DISC 0x10 /* Initial FCF discovery */
#define FCF_DEAD_DISC 0x20 /* FCF DEAD fast FCF failover discovery */
#define FCF_ACVL_DISC 0x40 /* All CVL fast FCF failover discovery */
#define FCF_DISCOVERY (FCF_INIT_DISC | FCF_DEAD_DISC | FCF_ACVL_DISC)
#define FCF_REDISC_PEND 0x80 /* FCF rediscovery pending */
#define FCF_REDISC_EVT 0x100 /* FCF rediscovery event to worker thread */
#define FCF_REDISC_FOV 0x200 /* Post FCF rediscovery fast failover */
uint32_t addr_mode;
uint16_t fcf_rr_init_indx;
struct lpfc_fcf_rec current_rec;
struct lpfc_fcf_rec failover_rec;
struct timer_list redisc_wait;
unsigned long *fcf_rr_bmask; /* Eligible FCF indexes for RR failover */
};
/*
* Maximum FCF table index, it is for driver internal book keeping, it
* just needs to be no less than the supported HBA's FCF table size.
*/
#define LPFC_SLI4_FCF_TBL_INDX_MAX 32
#define LPFC_REGION23_SIGNATURE "RG23"
#define LPFC_REGION23_VERSION 1
#define LPFC_REGION23_LAST_REC 0xff
@ -472,8 +482,8 @@ void lpfc_sli4_mbox_cmd_free(struct lpfc_hba *, struct lpfcMboxq *);
void lpfc_sli4_mbx_sge_set(struct lpfcMboxq *, uint32_t, dma_addr_t, uint32_t);
void lpfc_sli4_mbx_sge_get(struct lpfcMboxq *, uint32_t,
struct lpfc_mbx_sge *);
int lpfc_sli4_mbx_read_fcf_record(struct lpfc_hba *, struct lpfcMboxq *,
uint16_t);
int lpfc_sli4_mbx_read_fcf_rec(struct lpfc_hba *, struct lpfcMboxq *,
uint16_t);
void lpfc_sli4_hba_reset(struct lpfc_hba *);
struct lpfc_queue *lpfc_sli4_queue_alloc(struct lpfc_hba *, uint32_t,
@ -532,8 +542,13 @@ int lpfc_sli4_init_vpi(struct lpfc_hba *, uint16_t);
uint32_t lpfc_sli4_cq_release(struct lpfc_queue *, bool);
uint32_t lpfc_sli4_eq_release(struct lpfc_queue *, bool);
void lpfc_sli4_fcfi_unreg(struct lpfc_hba *, uint16_t);
int lpfc_sli4_read_fcf_record(struct lpfc_hba *, uint16_t);
void lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *, LPFC_MBOXQ_t *);
int lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *, uint16_t);
int lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *, uint16_t);
int lpfc_sli4_read_fcf_rec(struct lpfc_hba *, uint16_t);
void lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *, LPFC_MBOXQ_t *);
void lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *, LPFC_MBOXQ_t *);
void lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *, LPFC_MBOXQ_t *);
int lpfc_sli4_unregister_fcf(struct lpfc_hba *);
int lpfc_sli4_post_status_check(struct lpfc_hba *);
uint8_t lpfc_sli4_mbox_opcode_get(struct lpfc_hba *, struct lpfcMboxq *);