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[SCSI] lpfc 8.3.9: Discovery changes to the lpfc driver.

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- Add init_vpi mailbox command before re-registering VPI.
- Add Fast FCF failover support.

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 2010-02-12 14:41:27 -05:00 committed by James Bottomley
parent 1dfb5a47bc
commit ecfd03c6a9
8 changed files with 821 additions and 289 deletions
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8
drivers/scsi/lpfc/lpfc_crtn.h
View File

@ -78,6 +78,7 @@ void lpfc_set_disctmo(struct lpfc_vport *);
int lpfc_can_disctmo(struct lpfc_vport *);
int lpfc_unreg_rpi(struct lpfc_vport *, struct lpfc_nodelist *);
void lpfc_unreg_all_rpis(struct lpfc_vport *);
void lpfc_unreg_hba_rpis(struct lpfc_hba *);
void lpfc_unreg_default_rpis(struct lpfc_vport *);
void lpfc_issue_reg_vpi(struct lpfc_hba *, struct lpfc_vport *);
@ -202,6 +203,7 @@ void lpfc_reg_fcfi(struct lpfc_hba *, struct lpfcMboxq *);
void lpfc_unreg_fcfi(struct lpfcMboxq *, uint16_t);
void lpfc_resume_rpi(struct lpfcMboxq *, struct lpfc_nodelist *);
int lpfc_check_pending_fcoe_event(struct lpfc_hba *, uint8_t);
void lpfc_issue_init_vpi(struct lpfc_vport *);
void lpfc_config_hbq(struct lpfc_hba *, uint32_t, struct lpfc_hbq_init *,
uint32_t , LPFC_MBOXQ_t *);
@ -211,7 +213,11 @@ struct hbq_dmabuf *lpfc_sli4_rb_alloc(struct lpfc_hba *);
void lpfc_sli4_rb_free(struct lpfc_hba *, struct hbq_dmabuf *);
void lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *, struct fcf_record *,
uint16_t);
void lpfc_unregister_fcf(struct lpfc_hba *);
void lpfc_unregister_fcf_rescan(struct lpfc_hba *);
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 *);
int lpfc_mem_alloc(struct lpfc_hba *, int align);
void lpfc_mem_free(struct lpfc_hba *);
@ -370,6 +376,8 @@ void lpfc_free_fast_evt(struct lpfc_hba *, struct lpfc_fast_path_event *);
void lpfc_create_static_vport(struct lpfc_hba *);
void lpfc_stop_hba_timers(struct lpfc_hba *);
void lpfc_stop_port(struct lpfc_hba *);
void __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *);
void lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *);
void lpfc_parse_fcoe_conf(struct lpfc_hba *, uint8_t *, uint32_t);
int lpfc_parse_vpd(struct lpfc_hba *, uint8_t *, int);
void lpfc_start_fdiscs(struct lpfc_hba *phba);

16
drivers/scsi/lpfc/lpfc_els.c
View File

@ -589,6 +589,15 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
spin_unlock_irq(shost->host_lock);
}
/*
* If VPI is unreged, driver need to do INIT_VPI
* before re-registering
*/
if (phba->sli_rev == LPFC_SLI_REV4) {
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
spin_unlock_irq(shost->host_lock);
}
}
if (phba->sli_rev < LPFC_SLI_REV4) {
@ -606,7 +615,7 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
lpfc_start_fdiscs(phba);
lpfc_do_scr_ns_plogi(phba, vport);
} else if (vport->fc_flag & FC_VFI_REGISTERED)
lpfc_register_new_vport(phba, vport, ndlp);
lpfc_issue_init_vpi(vport);
else
lpfc_issue_reg_vfi(vport);
}
@ -6210,10 +6219,13 @@ lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
lpfc_mbx_unreg_vpi(vport);
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
spin_unlock_irq(shost->host_lock);
}
if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)
lpfc_issue_init_vpi(vport);
else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
lpfc_register_new_vport(phba, vport, ndlp);
else
lpfc_do_scr_ns_plogi(phba, vport);

672
drivers/scsi/lpfc/lpfc_hbadisc.c
View File

@ -525,6 +525,8 @@ lpfc_work_done(struct lpfc_hba *phba)
spin_unlock_irq(&phba->hbalock);
lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
}
if (phba->fcf.fcf_flag & FCF_REDISC_EVT)
lpfc_sli4_fcf_redisc_event_proc(phba);
}
vports = lpfc_create_vport_work_array(phba);
@ -754,7 +756,7 @@ lpfc_linkdown(struct lpfc_hba *phba)
lpfc_scsi_dev_block(phba);
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_DISCOVERED);
phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
if (phba->link_state > LPFC_LINK_DOWN) {
phba->link_state = LPFC_LINK_DOWN;
phba->pport->fc_flag &= ~FC_LBIT;
@ -1025,7 +1027,7 @@ lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
return;
}
spin_lock_irqsave(&phba->hbalock, flags);
phba->fcf.fcf_flag |= (FCF_DISCOVERED | FCF_IN_USE);
phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
phba->hba_flag &= ~FCF_DISC_INPROGRESS;
spin_unlock_irqrestore(&phba->hbalock, flags);
if (vport->port_state != LPFC_FLOGI)
@ -1047,25 +1049,23 @@ lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
static uint32_t
lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
{
if ((fab_name[0] ==
bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) &&
(fab_name[1] ==
bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) &&
(fab_name[2] ==
bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) &&
(fab_name[3] ==
bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) &&
(fab_name[4] ==
bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) &&
(fab_name[5] ==
bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) &&
(fab_name[6] ==
bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) &&
(fab_name[7] ==
bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)))
return 1;
else
if (fab_name[0] != bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record))
return 0;
if (fab_name[1] != bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record))
return 0;
if (fab_name[2] != bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record))
return 0;
if (fab_name[3] != bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record))
return 0;
if (fab_name[4] != bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record))
return 0;
if (fab_name[5] != bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record))
return 0;
if (fab_name[6] != bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record))
return 0;
if (fab_name[7] != bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record))
return 0;
return 1;
}
/**
@ -1080,30 +1080,28 @@ lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
static uint32_t
lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
{
if ((sw_name[0] ==
bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) &&
(sw_name[1] ==
bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) &&
(sw_name[2] ==
bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) &&
(sw_name[3] ==
bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) &&
(sw_name[4] ==
bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) &&
(sw_name[5] ==
bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) &&
(sw_name[6] ==
bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) &&
(sw_name[7] ==
bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)))
return 1;
else
if (sw_name[0] != bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record))
return 0;
if (sw_name[1] != bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record))
return 0;
if (sw_name[2] != bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record))
return 0;
if (sw_name[3] != bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record))
return 0;
if (sw_name[4] != bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record))
return 0;
if (sw_name[5] != bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record))
return 0;
if (sw_name[6] != bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record))
return 0;
if (sw_name[7] != bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record))
return 0;
return 1;
}
/**
* lpfc_mac_addr_match - Check if the fcf mac address match.
* @phba: pointer to lpfc hba data structure.
* @mac_addr: pointer to mac address.
* @new_fcf_record: pointer to fcf record.
*
* This routine compare the fcf record's mac address with HBA's
@ -1111,84 +1109,114 @@ lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
* returns 1 else return 0.
**/
static uint32_t
lpfc_mac_addr_match(struct lpfc_hba *phba, struct fcf_record *new_fcf_record)
lpfc_mac_addr_match(uint8_t *mac_addr, struct fcf_record *new_fcf_record)
{
if ((phba->fcf.mac_addr[0] ==
bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) &&
(phba->fcf.mac_addr[1] ==
bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) &&
(phba->fcf.mac_addr[2] ==
bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) &&
(phba->fcf.mac_addr[3] ==
bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) &&
(phba->fcf.mac_addr[4] ==
bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) &&
(phba->fcf.mac_addr[5] ==
bf_get(lpfc_fcf_record_mac_5, new_fcf_record)))
return 1;
else
if (mac_addr[0] != bf_get(lpfc_fcf_record_mac_0, new_fcf_record))
return 0;
if (mac_addr[1] != bf_get(lpfc_fcf_record_mac_1, new_fcf_record))
return 0;
if (mac_addr[2] != bf_get(lpfc_fcf_record_mac_2, new_fcf_record))
return 0;
if (mac_addr[3] != bf_get(lpfc_fcf_record_mac_3, new_fcf_record))
return 0;
if (mac_addr[4] != bf_get(lpfc_fcf_record_mac_4, new_fcf_record))
return 0;
if (mac_addr[5] != bf_get(lpfc_fcf_record_mac_5, new_fcf_record))
return 0;
return 1;
}
static bool
lpfc_vlan_id_match(uint16_t curr_vlan_id, uint16_t new_vlan_id)
{
return (curr_vlan_id == new_vlan_id);
}
/**
* lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
* @phba: pointer to lpfc hba data structure.
* @fcf: pointer to driver fcf record.
* @new_fcf_record: pointer to fcf record.
*
* This routine copies the FCF information from the FCF
* record to lpfc_hba data structure.
**/
static void
lpfc_copy_fcf_record(struct lpfc_hba *phba, struct fcf_record *new_fcf_record)
lpfc_copy_fcf_record(struct lpfc_fcf_rec *fcf_rec,
struct fcf_record *new_fcf_record)
{
phba->fcf.fabric_name[0] =
/* Fabric name */
fcf_rec->fabric_name[0] =
bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
phba->fcf.fabric_name[1] =
fcf_rec->fabric_name[1] =
bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
phba->fcf.fabric_name[2] =
fcf_rec->fabric_name[2] =
bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
phba->fcf.fabric_name[3] =
fcf_rec->fabric_name[3] =
bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
phba->fcf.fabric_name[4] =
fcf_rec->fabric_name[4] =
bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
phba->fcf.fabric_name[5] =
fcf_rec->fabric_name[5] =
bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
phba->fcf.fabric_name[6] =
fcf_rec->fabric_name[6] =
bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
phba->fcf.fabric_name[7] =
fcf_rec->fabric_name[7] =
bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
phba->fcf.mac_addr[0] =
bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
phba->fcf.mac_addr[1] =
bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
phba->fcf.mac_addr[2] =
bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
phba->fcf.mac_addr[3] =
bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
phba->fcf.mac_addr[4] =
bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
phba->fcf.mac_addr[5] =
bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
phba->fcf.fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
phba->fcf.priority = new_fcf_record->fip_priority;
phba->fcf.switch_name[0] =
/* Mac address */
fcf_rec->mac_addr[0] = bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
fcf_rec->mac_addr[1] = bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
fcf_rec->mac_addr[2] = bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
fcf_rec->mac_addr[3] = bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
fcf_rec->mac_addr[4] = bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
fcf_rec->mac_addr[5] = bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
/* FCF record index */
fcf_rec->fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
/* FCF record priority */
fcf_rec->priority = new_fcf_record->fip_priority;
/* Switch name */
fcf_rec->switch_name[0] =
bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
phba->fcf.switch_name[1] =
fcf_rec->switch_name[1] =
bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
phba->fcf.switch_name[2] =
fcf_rec->switch_name[2] =
bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
phba->fcf.switch_name[3] =
fcf_rec->switch_name[3] =
bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
phba->fcf.switch_name[4] =
fcf_rec->switch_name[4] =
bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
phba->fcf.switch_name[5] =
fcf_rec->switch_name[5] =
bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
phba->fcf.switch_name[6] =
fcf_rec->switch_name[6] =
bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
phba->fcf.switch_name[7] =
fcf_rec->switch_name[7] =
bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
}
/**
* lpfc_update_fcf_record - Update driver fcf record
* @phba: pointer to lpfc hba data structure.
* @fcf_rec: pointer to driver fcf record.
* @new_fcf_record: pointer to hba fcf record.
* @addr_mode: address mode to be set to the driver fcf record.
* @vlan_id: vlan tag to be set to the driver fcf record.
* @flag: flag bits to be set to the driver fcf record.
*
* This routine updates the driver FCF record from the new HBA FCF record
* together with the address mode, vlan_id, and other informations. This
* routine is called with the host lock held.
**/
static void
__lpfc_update_fcf_record(struct lpfc_hba *phba, struct lpfc_fcf_rec *fcf_rec,
struct fcf_record *new_fcf_record, uint32_t addr_mode,
uint16_t vlan_id, uint32_t flag)
{
/* Copy the fields from the HBA's FCF record */
lpfc_copy_fcf_record(fcf_rec, new_fcf_record);
/* Update other fields of driver FCF record */
fcf_rec->addr_mode = addr_mode;
fcf_rec->vlan_id = vlan_id;
fcf_rec->flag |= (flag | RECORD_VALID);
}
/**
* lpfc_register_fcf - Register the FCF with hba.
* @phba: pointer to lpfc hba data structure.
@ -1214,7 +1242,7 @@ lpfc_register_fcf(struct lpfc_hba *phba)
/* The FCF is already registered, start discovery */
if (phba->fcf.fcf_flag & FCF_REGISTERED) {
phba->fcf.fcf_flag |= (FCF_DISCOVERED | FCF_IN_USE);
phba->fcf.fcf_flag |= (FCF_SCAN_DONE | FCF_IN_USE);
phba->hba_flag &= ~FCF_DISC_INPROGRESS;
spin_unlock_irqrestore(&phba->hbalock, flags);
if (phba->pport->port_state != LPFC_FLOGI)
@ -1252,6 +1280,7 @@ lpfc_register_fcf(struct lpfc_hba *phba)
* @new_fcf_record: pointer to fcf record.
* @boot_flag: Indicates if this record used by boot bios.
* @addr_mode: The address mode to be used by this FCF
* @vlan_id: The vlan id to be used as vlan tagging by this FCF.
*
* This routine compare the fcf record with connect list obtained from the
* config region to decide if this FCF can be used for SAN discovery. It returns
@ -1325,7 +1354,8 @@ lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
return 1;
}
list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, list) {
list_for_each_entry(conn_entry,
&phba->fcf_conn_rec_list, list) {
if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
continue;
@ -1472,6 +1502,7 @@ lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
*/
spin_lock_irq(&phba->hbalock);
phba->hba_flag &= ~FCF_DISC_INPROGRESS;
phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
spin_unlock_irq(&phba->hbalock);
}
@ -1526,11 +1557,12 @@ lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
struct fcf_record *new_fcf_record;
int rc;
uint32_t boot_flag, addr_mode;
uint32_t next_fcf_index;
unsigned long flags;
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)) {
@ -1585,9 +1617,8 @@ lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
sizeof(struct fcf_record));
bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
rc = lpfc_match_fcf_conn_list(phba, new_fcf_record,
&boot_flag, &addr_mode,
&vlan_id);
rc = lpfc_match_fcf_conn_list(phba, new_fcf_record, &boot_flag,
&addr_mode, &vlan_id);
/*
* If the fcf record does not match with connect list entries
* read the next entry.
@ -1596,90 +1627,159 @@ lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
goto read_next_fcf;
/*
* If this is not the first FCF discovery of the HBA, use last
* FCF record for the discovery.
* 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, flags);
spin_lock_irqsave(&phba->hbalock, iflags);
if (phba->fcf.fcf_flag & FCF_IN_USE) {
if (lpfc_fab_name_match(phba->fcf.fabric_name,
if (lpfc_fab_name_match(phba->fcf.current_rec.fabric_name,
new_fcf_record) &&
lpfc_sw_name_match(phba->fcf.switch_name,
lpfc_sw_name_match(phba->fcf.current_rec.switch_name,
new_fcf_record) &&
lpfc_mac_addr_match(phba, new_fcf_record)) {
lpfc_mac_addr_match(phba->fcf.current_rec.mac_addr,
new_fcf_record) &&
lpfc_vlan_id_match(phba->fcf.current_rec.vlan_id,
vlan_id)) {
phba->fcf.fcf_flag |= FCF_AVAILABLE;
spin_unlock_irqrestore(&phba->hbalock, flags);
if (phba->fcf.fcf_flag & FCF_REDISC_PEND)
/* Stop FCF redisc wait timer if pending */
__lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
else if (phba->fcf.fcf_flag & FCF_REDISC_FOV)
/* If in fast failover, mark it's completed */
phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
spin_unlock_irqrestore(&phba->hbalock, iflags);
goto out;
}
spin_unlock_irqrestore(&phba->hbalock, flags);
goto read_next_fcf;
/*
* Read next FCF record from HBA searching for the matching
* with in-use record only if not during the fast failover
* period. In case of fast failover period, it shall try to
* determine whether the FCF record just read should be the
* next candidate.
*/
if (!(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
spin_unlock_irqrestore(&phba->hbalock, iflags);
goto read_next_fcf;
}
}
/*
* Update on failover FCF record only if it's in FCF fast-failover
* period; otherwise, update on current FCF record.
*/
if (phba->fcf.fcf_flag & FCF_REDISC_FOV) {
/* Fast FCF failover only to the same fabric name */
if (lpfc_fab_name_match(phba->fcf.current_rec.fabric_name,
new_fcf_record))
fcf_rec = &phba->fcf.failover_rec;
else
goto read_next_fcf;
} else
fcf_rec = &phba->fcf.current_rec;
if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
/*
* If the current FCF record does not have boot flag
* set and new fcf record has boot flag set, use the
* new fcf record.
* If the driver FCF record does not have boot flag
* set and new hba fcf record has boot flag set, use
* the new hba fcf record.
*/
if (boot_flag && !(phba->fcf.fcf_flag & FCF_BOOT_ENABLE)) {
/* Use this FCF record */
lpfc_copy_fcf_record(phba, new_fcf_record);
phba->fcf.addr_mode = addr_mode;
phba->fcf.fcf_flag |= FCF_BOOT_ENABLE;
if (vlan_id != 0xFFFF) {
phba->fcf.fcf_flag |= FCF_VALID_VLAN;
phba->fcf.vlan_id = vlan_id;
}
spin_unlock_irqrestore(&phba->hbalock, flags);
if (boot_flag && !(fcf_rec->flag & BOOT_ENABLE)) {
/* 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);
goto read_next_fcf;
}
/*
* If the current FCF record has boot flag set and the
* new FCF record does not have boot flag, read the next
* FCF record.
* If the driver FCF record has boot flag set and the
* new hba FCF record does not have boot flag, read
* the next FCF record.
*/
if (!boot_flag && (phba->fcf.fcf_flag & FCF_BOOT_ENABLE)) {
spin_unlock_irqrestore(&phba->hbalock, flags);
if (!boot_flag && (fcf_rec->flag & BOOT_ENABLE)) {
spin_unlock_irqrestore(&phba->hbalock, iflags);
goto read_next_fcf;
}
/*
* If there is a record with lower priority value for
* the current FCF, use that record.
* If the new hba FCF record has lower priority value
* than the driver FCF record, use the new record.
*/
if (lpfc_fab_name_match(phba->fcf.fabric_name,
new_fcf_record) &&
(new_fcf_record->fip_priority < phba->fcf.priority)) {
/* Use this FCF record */
lpfc_copy_fcf_record(phba, new_fcf_record);
phba->fcf.addr_mode = addr_mode;
if (vlan_id != 0xFFFF) {
phba->fcf.fcf_flag |= FCF_VALID_VLAN;
phba->fcf.vlan_id = vlan_id;
}
spin_unlock_irqrestore(&phba->hbalock, flags);
goto read_next_fcf;
if (lpfc_fab_name_match(fcf_rec->fabric_name, new_fcf_record) &&
(new_fcf_record->fip_priority < fcf_rec->priority)) {
/* Choose this FCF record */
__lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
addr_mode, vlan_id, 0);
}
spin_unlock_irqrestore(&phba->hbalock, flags);
spin_unlock_irqrestore(&phba->hbalock, iflags);
goto read_next_fcf;
}
/*
* This is the first available FCF record, use this
* record.
* This is the first suitable FCF record, choose this record for
* initial best-fit FCF.
*/
lpfc_copy_fcf_record(phba, new_fcf_record);
phba->fcf.addr_mode = addr_mode;
if (boot_flag)
phba->fcf.fcf_flag |= FCF_BOOT_ENABLE;
phba->fcf.fcf_flag |= FCF_AVAILABLE;
if (vlan_id != 0xFFFF) {
phba->fcf.fcf_flag |= FCF_VALID_VLAN;
phba->fcf.vlan_id = vlan_id;
if (fcf_rec) {
__lpfc_update_fcf_record(phba, fcf_rec, new_fcf_record,
addr_mode, vlan_id, (boot_flag ?
BOOT_ENABLE : 0));
phba->fcf.fcf_flag |= FCF_AVAILABLE;
}
spin_unlock_irqrestore(&phba->hbalock, flags);
spin_unlock_irqrestore(&phba->hbalock, iflags);
goto read_next_fcf;
read_next_fcf:
lpfc_sli4_mbox_cmd_free(phba, mboxq);
if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0)
lpfc_register_fcf(phba);
else
if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0) {
if (phba->fcf.fcf_flag & FCF_REDISC_FOV) {
/*
* Case of FCF fast failover scan
*/
/*
* It has not found any suitable FCF record, cancel
* FCF scan inprogress, and do nothing
*/
if (!(phba->fcf.failover_rec.flag & RECORD_VALID)) {
spin_lock_irqsave(&phba->hbalock, iflags);
phba->hba_flag &= ~FCF_DISC_INPROGRESS;
spin_unlock_irqrestore(&phba->hbalock, iflags);
return;
}
/*
* It has found a suitable FCF record that is not
* the same as in-use FCF record, unregister the
* in-use FCF record, replace the in-use FCF record
* with the new FCF record, mark FCF fast failover
* completed, and then start register the new FCF
* record.
*/
/* 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));
/* mark the FCF fast failover completed */
spin_lock_irqsave(&phba->hbalock, iflags);
phba->fcf.fcf_flag &= ~FCF_REDISC_FOV;
spin_unlock_irqrestore(&phba->hbalock, iflags);
/* Register to the new FCF record */
lpfc_register_fcf(phba);
} else {
/*
* In case of transaction period to fast FCF failover,
* do nothing when search to the end of the FCF table.
*/
if ((phba->fcf.fcf_flag & FCF_REDISC_EVT) ||
(phba->fcf.fcf_flag & FCF_REDISC_PEND))
return;
/*
* Otherwise, initial scan or post linkdown rescan,
* register with the best fit FCF record found so
* far through the scanning process.
*/
lpfc_register_fcf(phba);
}
} else
lpfc_sli4_read_fcf_record(phba, next_fcf_index);
return;
@ -1740,6 +1840,37 @@ lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
return;
}
/**
* lpfc_issue_init_vpi - Issue init_vpi mailbox command.
* @vport: pointer to lpfc_vport data structure.
*
* This function issue a init_vpi mailbox command to initialize
* VPI for the vport.
*/
void
lpfc_issue_init_vpi(struct lpfc_vport *vport)
{
LPFC_MBOXQ_t *mboxq;
int rc;
mboxq = mempool_alloc(vport->phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq) {
lpfc_printf_vlog(vport, KERN_ERR,
LOG_MBOX, "2607 Failed to allocate "
"init_vpi mailbox\n");
return;
}
lpfc_init_vpi(vport->phba, mboxq, vport->vpi);
mboxq->vport = vport;
mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
rc = lpfc_sli_issue_mbox(vport->phba, mboxq, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_printf_vlog(vport, KERN_ERR,
LOG_MBOX, "2608 Failed to issue init_vpi mailbox\n");
mempool_free(mboxq, vport->phba->mbox_mem_pool);
}
}
/**
* lpfc_start_fdiscs - send fdiscs for each vports on this port.
* @phba: pointer to lpfc hba data structure.
@ -1752,8 +1883,6 @@ lpfc_start_fdiscs(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
int i;
LPFC_MBOXQ_t *mboxq;
int rc;
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL) {
@ -1772,26 +1901,7 @@ lpfc_start_fdiscs(struct lpfc_hba *phba)
continue;
}
if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
mboxq = mempool_alloc(phba->mbox_mem_pool,
GFP_KERNEL);
if (!mboxq) {
lpfc_printf_vlog(vports[i], KERN_ERR,
LOG_MBOX, "2607 Failed to allocate "
"init_vpi mailbox\n");
continue;
}
lpfc_init_vpi(phba, mboxq, vports[i]->vpi);
mboxq->vport = vports[i];
mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
rc = lpfc_sli_issue_mbox(phba, mboxq,
MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_printf_vlog(vports[i], KERN_ERR,
LOG_MBOX, "2608 Failed to issue "
"init_vpi mailbox\n");
mempool_free(mboxq,
phba->mbox_mem_pool);
}
lpfc_issue_init_vpi(vports[i]);
continue;
}
if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
@ -2071,8 +2181,7 @@ lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
return;
}
spin_unlock_irq(&phba->hbalock);
rc = lpfc_sli4_read_fcf_record(phba,
LPFC_FCOE_FCF_GET_FIRST);
rc = lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST);
if (rc)
goto out;
}
@ -3240,6 +3349,34 @@ lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
return 0;
}
/**
* lpfc_unreg_hba_rpis - Unregister rpis registered to the hba.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to unregister all the currently registered RPIs
* to the HBA.
**/
void
lpfc_unreg_hba_rpis(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
struct lpfc_nodelist *ndlp;
struct Scsi_Host *shost;
int i;
vports = lpfc_create_vport_work_array(phba);
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
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)
lpfc_unreg_rpi(vports[i], ndlp);
}
spin_unlock_irq(shost->host_lock);
}
lpfc_destroy_vport_work_array(phba, vports);
}
void
lpfc_unreg_all_rpis(struct lpfc_vport *vport)
{
@ -4470,47 +4607,31 @@ lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
}
/**
* lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
* lpfc_unregister_fcf_prep - Unregister fcf record preparation
* @phba: Pointer to hba context object.
*
* This function check if there are any connected remote port for the FCF and
* if all the devices are disconnected, this function unregister FCFI.
* This function also tries to use another FCF for discovery.
* This function prepare the HBA for unregistering the currently registered
* FCF from the HBA. It performs unregistering, in order, RPIs, VPIs, and
* VFIs.
*/
void
lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
int
lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *mbox;
int rc;
struct lpfc_vport **vports;
int i;
struct lpfc_nodelist *ndlp;
int i, rc;
spin_lock_irq(&phba->hbalock);
/*
* If HBA is not running in FIP mode or
* If HBA does not support FCoE or
* If FCF is not registered.
* do nothing.
*/
if (!(phba->hba_flag & HBA_FCOE_SUPPORT) ||
!(phba->fcf.fcf_flag & FCF_REGISTERED) ||
(!(phba->hba_flag & HBA_FIP_SUPPORT))) {
spin_unlock_irq(&phba->hbalock);
return;
}
spin_unlock_irq(&phba->hbalock);
/* Unregister RPIs */
if (lpfc_fcf_inuse(phba))
return;
lpfc_unreg_hba_rpis(phba);
/* At this point, all discovery is aborted */
phba->pport->port_state = LPFC_VPORT_UNKNOWN;
/* Unregister VPIs */
vports = lpfc_create_vport_work_array(phba);
if (vports &&
(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
if (vports && (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
/* Stop FLOGI/FDISC retries */
ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
@ -4531,10 +4652,9 @@ lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
"2556 UNREG_VFI mbox allocation failed"
"HBA state x%x\n",
phba->pport->port_state);
return;
"2556 UNREG_VFI mbox allocation failed"
"HBA state x%x\n", phba->pport->port_state);
return -ENOMEM;
}
lpfc_unreg_vfi(mbox, phba->pport);
@ -4544,62 +4664,162 @@ lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
"2557 UNREG_VFI issue mbox failed rc x%x "
"HBA state x%x\n",
rc, phba->pport->port_state);
"2557 UNREG_VFI issue mbox failed rc x%x "
"HBA state x%x\n",
rc, phba->pport->port_state);
mempool_free(mbox, phba->mbox_mem_pool);
return;
return -EIO;
}
spin_lock_irq(&phba->hbalock);
phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
spin_unlock_irq(&phba->hbalock);
/* Unregister FCF */
return 0;
}
/**
* lpfc_sli4_unregister_fcf - Unregister currently registered FCF record
* @phba: Pointer to hba context object.
*
* This function issues synchronous unregister FCF mailbox command to HBA to
* unregister the currently registered FCF record. The driver does not reset
* the driver FCF usage state flags.
*
* Return 0 if successfully issued, none-zero otherwise.
*/
int
lpfc_sli4_unregister_fcf(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *mbox;
int rc;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
"2551 UNREG_FCFI mbox allocation failed"
"HBA state x%x\n",
phba->pport->port_state);
return;
"2551 UNREG_FCFI mbox allocation failed"
"HBA state x%x\n", phba->pport->port_state);
return -ENOMEM;
}
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,
"2552 UNREG_FCFI issue mbox failed rc x%x "
"HBA state x%x\n",
rc, phba->pport->port_state);
mempool_free(mbox, phba->mbox_mem_pool);
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"2552 Unregister FCFI command failed rc x%x "
"HBA state x%x\n",
rc, phba->pport->port_state);
return -EINVAL;
}
return 0;
}
/**
* lpfc_unregister_fcf_rescan - Unregister currently registered fcf and rescan
* @phba: Pointer to hba context object.
*
* This function unregisters the currently reigstered FCF. This function
* also tries to find another FCF for discovery by rescan the HBA FCF table.
*/
void
lpfc_unregister_fcf_rescan(struct lpfc_hba *phba)
{
int rc;
/* Preparation for unregistering fcf */
rc = lpfc_unregister_fcf_prep(phba);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
"2748 Failed to prepare for unregistering "
"HBA's FCF record: rc=%d\n", rc);
return;
}
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_REGISTERED |
FCF_DISCOVERED | FCF_BOOT_ENABLE | FCF_IN_USE |
FCF_VALID_VLAN);
spin_unlock_irq(&phba->hbalock);
/* Now, unregister FCF record and reset HBA FCF state */
rc = lpfc_sli4_unregister_fcf(phba);
if (rc)
return;
/* Reset HBA FCF states after successful unregister FCF */
phba->fcf.fcf_flag = 0;
/*
* If driver is not unloading, check if there is any other
* FCF record that can be used for discovery.
*/
if ((phba->pport->load_flag & FC_UNLOADING) ||
(phba->link_state < LPFC_LINK_UP))
(phba->link_state < LPFC_LINK_UP))
return;
rc = lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST);
if (rc)
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);
"2553 lpfc_unregister_unused_fcf failed "
"to read FCF record HBA state x%x\n",
phba->pport->port_state);
}
/**
* lpfc_unregister_fcf - Unregister the currently registered fcf record
* @phba: Pointer to hba context object.
*
* This function just unregisters the currently reigstered FCF. It does not
* try to find another FCF for discovery.
*/
void
lpfc_unregister_fcf(struct lpfc_hba *phba)
{
int rc;
/* Preparation for unregistering fcf */
rc = lpfc_unregister_fcf_prep(phba);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
"2749 Failed to prepare for unregistering "
"HBA's FCF record: rc=%d\n", rc);
return;
}
/* Now, unregister FCF record and reset HBA FCF state */
rc = lpfc_sli4_unregister_fcf(phba);
if (rc)
return;
/* Set proper HBA FCF states after successful unregister FCF */
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_REGISTERED;
spin_unlock_irq(&phba->hbalock);
}
/**
* lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
* @phba: Pointer to hba context object.
*
* This function check if there are any connected remote port for the FCF and
* if all the devices are disconnected, this function unregister FCFI.
* This function also tries to use another FCF for discovery.
*/
void
lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
{
/*
* If HBA is not running in FIP mode or if HBA does not support
* FCoE or if FCF is not registered, do nothing.
*/
spin_lock_irq(&phba->hbalock);
if (!(phba->hba_flag & HBA_FCOE_SUPPORT) ||
!(phba->fcf.fcf_flag & FCF_REGISTERED) ||
!(phba->hba_flag & HBA_FIP_SUPPORT)) {
spin_unlock_irq(&phba->hbalock);
return;
}
spin_unlock_irq(&phba->hbalock);
if (lpfc_fcf_inuse(phba))
return;
lpfc_unregister_fcf_rescan(phba);
}
/**

16
drivers/scsi/lpfc/lpfc_hw4.h
View File

@ -797,6 +797,7 @@ struct mbox_header {
#define LPFC_MBOX_OPCODE_FCOE_ADD_FCF 0x09
#define LPFC_MBOX_OPCODE_FCOE_DELETE_FCF 0x0A
#define LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE 0x0B
#define LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF 0x10
/* Mailbox command structures */
struct eq_context {
@ -1297,6 +1298,19 @@ struct lpfc_mbx_del_fcf_tbl_entry {
#define lpfc_mbx_del_fcf_tbl_index_WORD word10
};
struct lpfc_mbx_redisc_fcf_tbl {
struct mbox_header header;
uint32_t word10;
#define lpfc_mbx_redisc_fcf_count_SHIFT 0
#define lpfc_mbx_redisc_fcf_count_MASK 0x0000FFFF
#define lpfc_mbx_redisc_fcf_count_WORD word10
uint32_t resvd;
uint32_t word12;
#define lpfc_mbx_redisc_fcf_index_SHIFT 0
#define lpfc_mbx_redisc_fcf_index_MASK 0x0000FFFF
#define lpfc_mbx_redisc_fcf_index_WORD word12
};
struct lpfc_mbx_query_fw_cfg {
struct mbox_header header;
uint32_t config_number;
@ -1859,6 +1873,7 @@ struct lpfc_mqe {
struct lpfc_mbx_read_fcf_tbl read_fcf_tbl;
struct lpfc_mbx_add_fcf_tbl_entry add_fcf_entry;
struct lpfc_mbx_del_fcf_tbl_entry del_fcf_entry;
struct lpfc_mbx_redisc_fcf_tbl redisc_fcf_tbl;
struct lpfc_mbx_reg_fcfi reg_fcfi;
struct lpfc_mbx_unreg_fcfi unreg_fcfi;
struct lpfc_mbx_mq_create mq_create;
@ -1975,6 +1990,7 @@ struct lpfc_acqe_fcoe {
#define LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL 0x2
#define LPFC_FCOE_EVENT_TYPE_FCF_DEAD 0x3
#define LPFC_FCOE_EVENT_TYPE_CVL 0x4
#define LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD 0x5
uint32_t event_tag;
uint32_t trailer;
};

164
drivers/scsi/lpfc/lpfc_init.c
View File

@ -2072,6 +2072,44 @@ lpfc_stop_vport_timers(struct lpfc_vport *vport)
return;
}
/**
* __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
* @phba: pointer to lpfc hba data structure.
*
* This routine stops the SLI4 FCF rediscover wait timer if it's on. The
* caller of this routine should already hold the host lock.
**/
void
__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
{
/* Clear pending FCF rediscovery wait timer */
phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
/* Now, try to stop the timer */
del_timer(&phba->fcf.redisc_wait);
}
/**
* lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
* @phba: pointer to lpfc hba data structure.
*
* This routine stops the SLI4 FCF rediscover wait timer if it's on. It
* checks whether the FCF rediscovery wait timer is pending with the host
* lock held before proceeding with disabling the timer and clearing the
* wait timer pendig flag.
**/
void
lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
{
spin_lock_irq(&phba->hbalock);
if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
/* FCF rediscovery timer already fired or stopped */
spin_unlock_irq(&phba->hbalock);
return;
}
__lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
spin_unlock_irq(&phba->hbalock);
}
/**
* lpfc_stop_hba_timers - Stop all the timers associated with an HBA
* @phba: pointer to lpfc hba data structure.
@ -2096,6 +2134,7 @@ lpfc_stop_hba_timers(struct lpfc_hba *phba)
break;
case LPFC_PCI_DEV_OC:
/* Stop any OneConnect device sepcific driver timers */
lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
break;
default:
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
@ -2706,7 +2745,7 @@ lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba)
del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry;
bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1);
bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record,
phba->fcf.fcf_indx);
phba->fcf.current_rec.fcf_indx);
if (!phba->sli4_hba.intr_enable)
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
@ -2729,6 +2768,57 @@ lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba)
mempool_free(mboxq, phba->mbox_mem_pool);
}
/**
* lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
* @phba: Pointer to hba for which this call is being executed.
*
* This routine starts the timer waiting for the FCF rediscovery to complete.
**/
void
lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
{
unsigned long fcf_redisc_wait_tmo =
(jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
/* Start fcf rediscovery wait period timer */
mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
spin_lock_irq(&phba->hbalock);
/* Allow action to new fcf asynchronous event */
phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
/* Mark the FCF rediscovery pending state */
phba->fcf.fcf_flag |= FCF_REDISC_PEND;
spin_unlock_irq(&phba->hbalock);
}
/**
* lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
* @ptr: Map to lpfc_hba data structure pointer.
*
* This routine is invoked when waiting for FCF table rediscover has been
* timed out. If new FCF record(s) has (have) been discovered during the
* wait period, a new FCF event shall be added to the FCOE async event
* list, and then worker thread shall be waked up for processing from the
* worker thread context.
**/
void
lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
{
struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
/* Don't send FCF rediscovery event if timer cancelled */
spin_lock_irq(&phba->hbalock);
if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
spin_unlock_irq(&phba->hbalock);
return;
}
/* Clear FCF rediscovery timer pending flag */
phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
/* FCF rediscovery event to worker thread */
phba->fcf.fcf_flag |= FCF_REDISC_EVT;
spin_unlock_irq(&phba->hbalock);
/* wake up worker thread */
lpfc_worker_wake_up(phba);
}
/**
* lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support
* @phba: pointer to lpfc hba data structure.
@ -3020,17 +3110,26 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
phba->fcoe_eventtag = acqe_fcoe->event_tag;
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);
/*
* If the current FCF is in discovered state, or
* FCF discovery is in progress do nothing.
*/
spin_lock_irq(&phba->hbalock);
if ((phba->fcf.fcf_flag & FCF_DISCOVERED) ||
(phba->hba_flag & FCF_DISC_INPROGRESS)) {
if ((phba->fcf.fcf_flag & FCF_SCAN_DONE) ||
(phba->hba_flag & FCF_DISC_INPROGRESS)) {
/*
* If the current FCF is in discovered state or
* FCF discovery is in progress, do nothing.
*/
spin_unlock_irq(&phba->hbalock);
break;
}
if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
/*
* If fast FCF failover rescan event is pending,
* do nothing.
*/
spin_unlock_irq(&phba->hbalock);
break;
}
@ -3057,7 +3156,7 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
" tag 0x%x\n", acqe_fcoe->index,
acqe_fcoe->event_tag);
/* If the event is not for currently used fcf do nothing */
if (phba->fcf.fcf_indx != acqe_fcoe->index)
if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index)
break;
/*
* Currently, driver support only one FCF - so treat this as
@ -3121,7 +3220,19 @@ lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
vport->port_state = LPFC_FDISC;
} else {
lpfc_retry_pport_discovery(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.
*/
rc = lpfc_sli4_redisc_fcf_table(phba);
if (rc)
/*
* Last resort will be re-try on the
* the current registered FCF entry.
*/
lpfc_retry_pport_discovery(phba);
}
break;
default:
@ -3197,6 +3308,34 @@ void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
}
}
/**
* lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked by the worker thread to process FCF table
* rediscovery pending completion event.
**/
void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
{
int rc;
spin_lock_irq(&phba->hbalock);
/* Clear FCF rediscovery timeout event */
phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
/* Clear driver fast failover FCF record flag */
phba->fcf.failover_rec.flag = 0;
/* Set state for FCF fast failover */
phba->fcf.fcf_flag |= FCF_REDISC_FOV;
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);
if (rc)
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
"2747 Post FCF rediscovery read FCF record "
"failed 0x%x\n", rc);
}
/**
* lpfc_api_table_setup - Set up per hba pci-device group func api jump table
* @phba: pointer to lpfc hba data structure.
@ -3512,6 +3651,11 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
init_timer(&phba->eratt_poll);
phba->eratt_poll.function = lpfc_poll_eratt;
phba->eratt_poll.data = (unsigned long) phba;
/* FCF rediscover timer */
init_timer(&phba->fcf.redisc_wait);
phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
phba->fcf.redisc_wait.data = (unsigned long)phba;
/*
* We need to do a READ_CONFIG mailbox command here before
* calling lpfc_get_cfgparam. For VFs this will report the
@ -6039,7 +6183,7 @@ lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi)
spin_lock_irqsave(&phba->hbalock, flags);
/* Mark the FCFI is no longer registered */
phba->fcf.fcf_flag &=
~(FCF_AVAILABLE | FCF_REGISTERED | FCF_DISCOVERED);
~(FCF_AVAILABLE | FCF_REGISTERED | FCF_SCAN_DONE);
spin_unlock_irqrestore(&phba->hbalock, flags);
}
}

70
drivers/scsi/lpfc/lpfc_mbox.c
View File

@ -1746,6 +1746,65 @@ lpfc_sli4_mbox_opcode_get(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
return bf_get(lpfc_mbox_hdr_opcode, &cfg_shdr->request);
}
/**
* lpfc_sli4_mbx_read_fcf_record - Allocate and construct read fcf mbox cmd
* @phba: pointer to lpfc hba data structure.
* @fcf_index: index to fcf table.
*
* This routine routine allocates and constructs non-embedded mailbox command
* for reading a FCF table entry refered by @fcf_index.
*
* Return: pointer to the mailbox command constructed if successful, otherwise
* NULL.
**/
int
lpfc_sli4_mbx_read_fcf_record(struct lpfc_hba *phba,
struct lpfcMboxq *mboxq,
uint16_t fcf_index)
{
void *virt_addr;
dma_addr_t phys_addr;
uint8_t *bytep;
struct lpfc_mbx_sge sge;
uint32_t alloc_len, req_len;
struct lpfc_mbx_read_fcf_tbl *read_fcf;
if (!mboxq)
return -ENOMEM;
req_len = sizeof(struct fcf_record) +
sizeof(union lpfc_sli4_cfg_shdr) + 2 * sizeof(uint32_t);
/* Set up READ_FCF SLI4_CONFIG mailbox-ioctl command */
alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_READ_FCF_TABLE, req_len,
LPFC_SLI4_MBX_NEMBED);
if (alloc_len < req_len) {
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
"0291 Allocated DMA memory size (x%x) is "
"less than the requested DMA memory "
"size (x%x)\n", alloc_len, req_len);
return -ENOMEM;
}
/* Get the first SGE entry from the non-embedded DMA memory. This
* routine only uses a single SGE.
*/
lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
virt_addr = mboxq->sge_array->addr[0];
read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
/* Set up command fields */
bf_set(lpfc_mbx_read_fcf_tbl_indx, &read_fcf->u.request, fcf_index);
/* Perform necessary endian conversion */
bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
lpfc_sli_pcimem_bcopy(bytep, bytep, sizeof(uint32_t));
return 0;
}
/**
* lpfc_request_features: Configure SLI4 REQUEST_FEATURES mailbox
* @mboxq: pointer to lpfc mbox command.
@ -1946,13 +2005,14 @@ lpfc_reg_fcfi(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
bf_set(lpfc_reg_fcfi_rq_id1, reg_fcfi, REG_FCF_INVALID_QID);
bf_set(lpfc_reg_fcfi_rq_id2, reg_fcfi, REG_FCF_INVALID_QID);
bf_set(lpfc_reg_fcfi_rq_id3, reg_fcfi, REG_FCF_INVALID_QID);
bf_set(lpfc_reg_fcfi_info_index, reg_fcfi, phba->fcf.fcf_indx);
bf_set(lpfc_reg_fcfi_info_index, reg_fcfi,
phba->fcf.current_rec.fcf_indx);
/* reg_fcf addr mode is bit wise inverted value of fcf addr_mode */
bf_set(lpfc_reg_fcfi_mam, reg_fcfi,
(~phba->fcf.addr_mode) & 0x3);
if (phba->fcf.fcf_flag & FCF_VALID_VLAN) {
bf_set(lpfc_reg_fcfi_mam, reg_fcfi, (~phba->fcf.addr_mode) & 0x3);
if (phba->fcf.current_rec.vlan_id != 0xFFFF) {
bf_set(lpfc_reg_fcfi_vv, reg_fcfi, 1);
bf_set(lpfc_reg_fcfi_vlan_tag, reg_fcfi, phba->fcf.vlan_id);
bf_set(lpfc_reg_fcfi_vlan_tag, reg_fcfi,
phba->fcf.current_rec.vlan_id);
}
}

128
drivers/scsi/lpfc/lpfc_sli.c
View File

@ -11956,12 +11956,6 @@ lpfc_sli4_read_fcf_record(struct lpfc_hba *phba, uint16_t fcf_index)
{
int rc = 0, error;
LPFC_MBOXQ_t *mboxq;
void *virt_addr;
dma_addr_t phys_addr;
uint8_t *bytep;
struct lpfc_mbx_sge sge;
uint32_t alloc_len, req_len;
struct lpfc_mbx_read_fcf_tbl *read_fcf;
phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
@ -11972,43 +11966,19 @@ lpfc_sli4_read_fcf_record(struct lpfc_hba *phba, uint16_t fcf_index)
error = -ENOMEM;
goto fail_fcfscan;
}
req_len = sizeof(struct fcf_record) +
sizeof(union lpfc_sli4_cfg_shdr) + 2 * sizeof(uint32_t);
/* Set up READ_FCF SLI4_CONFIG mailbox-ioctl command */
alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_READ_FCF_TABLE, req_len,
LPFC_SLI4_MBX_NEMBED);
if (alloc_len < req_len) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0291 Allocated DMA memory size (x%x) is "
"less than the requested DMA memory "
"size (x%x)\n", alloc_len, req_len);
error = -ENOMEM;
/* Construct the read FCF record mailbox command */
rc = lpfc_sli4_mbx_read_fcf_record(phba, mboxq, fcf_index);
if (rc) {
error = -EINVAL;
goto fail_fcfscan;
}
/* Get the first SGE entry from the non-embedded DMA memory. This
* routine only uses a single SGE.
*/
lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
virt_addr = mboxq->sge_array->addr[0];
read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
/* Set up command fields */
bf_set(lpfc_mbx_read_fcf_tbl_indx, &read_fcf->u.request, fcf_index);
/* Perform necessary endian conversion */
bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
lpfc_sli_pcimem_bcopy(bytep, bytep, sizeof(uint32_t));
/* Issue the mailbox command asynchronously */
mboxq->vport = phba->pport;
mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_record;
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
if (rc == MBX_NOT_FINISHED)
error = -EIO;
} else {
else {
spin_lock_irq(&phba->hbalock);
phba->hba_flag |= FCF_DISC_INPROGRESS;
spin_unlock_irq(&phba->hbalock);
@ -12026,6 +11996,90 @@ fail_fcfscan:
return error;
}
/**
* lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
* @phba: pointer to lpfc hba data structure.
*
* This routine is the completion routine for the rediscover FCF table mailbox
* command. If the mailbox command returned failure, it will try to stop the
* FCF rediscover wait timer.
**/
void
lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
{
struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
uint32_t shdr_status, shdr_add_status;
redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
shdr_status = bf_get(lpfc_mbox_hdr_status,
&redisc_fcf->header.cfg_shdr.response);
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,
"2746 Requesting for FCF rediscovery failed "
"status x%x add_status x%x\n",
shdr_status, shdr_add_status);
/*
* Request failed, last resort to re-try current
* registered FCF entry
*/
lpfc_retry_pport_discovery(phba);
} else
/*
* 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);
}
/**
* lpfc_sli4_redisc_all_fcf - Request to rediscover entire FCF table by port.
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to request for rediscovery of the entire FCF table
* by the port.
**/
int
lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *mbox;
struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
int rc, length;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"2745 Failed to allocate mbox for "
"requesting FCF rediscover.\n");
return -ENOMEM;
}
length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
length, LPFC_SLI4_MBX_EMBED);
redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
/* Set count to 0 for invalidating the entire FCF database */
bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
/* Issue the mailbox command asynchronously */
mbox->vport = phba->pport;
mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
mempool_free(mbox, phba->mbox_mem_pool);
return -EIO;
}
return 0;
}
/**
* lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
* @phba: pointer to lpfc hba data structure.

36
drivers/scsi/lpfc/lpfc_sli4.h
View File

@ -22,6 +22,10 @@
#define LPFC_RELEASE_NOTIFICATION_INTERVAL 32
#define LPFC_GET_QE_REL_INT 32
#define LPFC_RPI_LOW_WATER_MARK 10
/* Amount of time in seconds for waiting FCF rediscovery to complete */
#define LPFC_FCF_REDISCOVER_WAIT_TMO 2000 /* msec */
/* Number of SGL entries can be posted in a 4KB nonembedded mbox command */
#define LPFC_NEMBED_MBOX_SGL_CNT 254
@ -129,22 +133,33 @@ struct lpfc_sli4_link {
uint16_t logical_speed;
};
struct lpfc_fcf {
uint8_t fabric_name[8];
uint8_t switch_name[8];
struct lpfc_fcf_rec {
uint8_t fabric_name[8];
uint8_t switch_name[8];
uint8_t mac_addr[6];
uint16_t fcf_indx;
uint32_t priority;
uint16_t vlan_id;
uint32_t addr_mode;
uint32_t flag;
#define BOOT_ENABLE 0x01
#define RECORD_VALID 0x02
};
struct lpfc_fcf {
uint16_t fcfi;
uint32_t fcf_flag;
#define FCF_AVAILABLE 0x01 /* FCF available for discovery */
#define FCF_REGISTERED 0x02 /* FCF registered with FW */
#define FCF_DISCOVERED 0x04 /* FCF discovery started */
#define FCF_BOOT_ENABLE 0x08 /* Boot bios use this FCF */
#define FCF_IN_USE 0x10 /* Atleast one discovery completed */
#define FCF_VALID_VLAN 0x20 /* Use the vlan id specified */
uint32_t priority;
#define FCF_SCAN_DONE 0x04 /* FCF table scan done */
#define FCF_IN_USE 0x08 /* Atleast one discovery completed */
#define FCF_REDISC_PEND 0x10 /* FCF rediscovery pending */
#define FCF_REDISC_EVT 0x20 /* FCF rediscovery event to worker thread */
#define FCF_REDISC_FOV 0x40 /* Post FCF rediscovery fast failover */
uint32_t addr_mode;
uint16_t vlan_id;
struct lpfc_fcf_rec current_rec;
struct lpfc_fcf_rec failover_rec;
struct timer_list redisc_wait;
};
#define LPFC_REGION23_SIGNATURE "RG23"
@ -407,6 +422,8 @@ 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);
void lpfc_sli4_hba_reset(struct lpfc_hba *);
struct lpfc_queue *lpfc_sli4_queue_alloc(struct lpfc_hba *, uint32_t,
@ -449,6 +466,7 @@ int lpfc_sli4_alloc_rpi(struct lpfc_hba *);
void lpfc_sli4_free_rpi(struct lpfc_hba *, int);
void lpfc_sli4_remove_rpis(struct lpfc_hba *);
void lpfc_sli4_async_event_proc(struct lpfc_hba *);
void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *);
int lpfc_sli4_resume_rpi(struct lpfc_nodelist *);
void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *);
void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *);