[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>
diff --git a/drivers/scsi/bfa/bfa_svc.c b/drivers/scsi/bfa/bfa_svc.c
index 8dc2e77..2666472 100644
--- a/drivers/scsi/bfa/bfa_svc.c
+++ b/drivers/scsi/bfa/bfa_svc.c
@@ -1890,6 +1890,8 @@
/*
* 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 @@
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 @@
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:
diff --git a/drivers/scsi/bfa/bfa_svc.h b/drivers/scsi/bfa/bfa_svc.h
index 29b0918..36c81c7 100644
--- a/drivers/scsi/bfa/bfa_svc.h
+++ b/drivers/scsi/bfa/bfa_svc.h
@@ -444,6 +444,7 @@
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;
diff --git a/drivers/scsi/bfa/bfi_ms.h b/drivers/scsi/bfa/bfi_ms.h
index e0e5318..8f22ef1 100644
--- a/drivers/scsi/bfa/bfi_ms.h
+++ b/drivers/scsi/bfa/bfi_ms.h
@@ -188,7 +188,8 @@
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 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];
};
/*