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[SCSI] bfa: Store port configuration in flash for persistency. 

When the bfa driver is loaded a flogi is sent without the knowledge of
trunking configuration. This normal flogi causes the switch ports
which had trunking enabled to go to persistent offline.  Solution is
to store the port configuration (which has trunking info) in the flash
for persistency. The firmware will read this configuration when the
very first fcport enable is received.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Krishna Gudipati 2010-12-13 16:16:50 -08:00 committed by James Bottomley
parent 4e78efefa3
commit f3a060ca57
3 changed files with 29 additions and 3 deletions
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25
drivers/scsi/bfa/bfa_svc.c
View File

@ -1890,6 +1890,8 @@ bfa_fcport_sm_uninit(struct bfa_fcport_s *fcport,
/*
* Start event after IOC is configured and BFA is started.
*/
fcport->use_flash_cfg = BFA_TRUE;
if (bfa_fcport_send_enable(fcport)) {
bfa_trc(fcport->bfa, BFA_TRUE);
bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
@ -2855,6 +2857,7 @@ bfa_fcport_send_enable(struct bfa_fcport_s *fcport)
m->port_cfg = fcport->cfg;
m->msgtag = fcport->msgtag;
m->port_cfg.maxfrsize = cpu_to_be16(fcport->cfg.maxfrsize);
m->use_flash_cfg = fcport->use_flash_cfg;
bfa_dma_be_addr_set(m->stats_dma_addr, fcport->stats_pa);
bfa_trc(fcport->bfa, m->stats_dma_addr.a32.addr_lo);
bfa_trc(fcport->bfa, m->stats_dma_addr.a32.addr_hi);
@ -3251,8 +3254,28 @@ bfa_fcport_isr(struct bfa_s *bfa, struct bfi_msg_s *msg)
switch (msg->mhdr.msg_id) {
case BFI_FCPORT_I2H_ENABLE_RSP:
if (fcport->msgtag == i2hmsg.penable_rsp->msgtag)
if (fcport->msgtag == i2hmsg.penable_rsp->msgtag) {
if (fcport->use_flash_cfg) {
fcport->cfg = i2hmsg.penable_rsp->port_cfg;
fcport->cfg.maxfrsize =
cpu_to_be16(fcport->cfg.maxfrsize);
fcport->cfg.path_tov =
cpu_to_be16(fcport->cfg.path_tov);
fcport->cfg.q_depth =
cpu_to_be16(fcport->cfg.q_depth);
if (fcport->cfg.trunked)
fcport->trunk.attr.state =
BFA_TRUNK_OFFLINE;
else
fcport->trunk.attr.state =
BFA_TRUNK_DISABLED;
fcport->use_flash_cfg = BFA_FALSE;
}
bfa_sm_send_event(fcport, BFA_FCPORT_SM_FWRSP);
}
break;
case BFI_FCPORT_I2H_DISABLE_RSP:

1
drivers/scsi/bfa/bfa_svc.h
View File

@ -444,6 +444,7 @@ struct bfa_fcport_s {
u8 myalpa; /* my ALPA in LOOP topology */
u8 rsvd[3];
struct bfa_port_cfg_s cfg; /* current port configuration */
bfa_boolean_t use_flash_cfg; /* get port cfg from flash */
struct bfa_qos_attr_s qos_attr; /* QoS Attributes */
struct bfa_qos_vc_attr_s qos_vc_attr; /* VC info from ELP */
struct bfa_reqq_wait_s reqq_wait;

6
drivers/scsi/bfa/bfi_ms.h
View File

@ -188,7 +188,8 @@ struct bfi_fcport_rsp_s {
struct bfi_mhdr_s mh; /* common msg header */
u8 status; /* port enable status */
u8 rsvd[3];
u32 msgtag; /* msgtag for reply */
struct bfa_port_cfg_s port_cfg;/* port configuration */
u32 msgtag; /* msgtag for reply */
};
/*
@ -202,7 +203,8 @@ struct bfi_fcport_enable_req_s {
struct bfa_port_cfg_s port_cfg; /* port configuration */
union bfi_addr_u stats_dma_addr; /* DMA address for stats */
u32 msgtag; /* msgtag for reply */
u32 rsvd2;
u8 use_flash_cfg; /* get prot cfg from flash */
u8 rsvd2[3];
};
/*