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-rw-r--r--drivers/scsi/fcoe/libfcoe.c60
-rw-r--r--include/scsi/libfcoe.h1
2 files changed, 31 insertions, 30 deletions
diff --git a/drivers/scsi/fcoe/libfcoe.c b/drivers/scsi/fcoe/libfcoe.c
index 787e7225ddd..4d857c2aef6 100644
--- a/drivers/scsi/fcoe/libfcoe.c
+++ b/drivers/scsi/fcoe/libfcoe.c
@@ -277,38 +277,16 @@ EXPORT_SYMBOL(fcoe_ctlr_link_up);
/**
* fcoe_ctlr_reset() - Reset a FCoE controller
* @fip: The FCoE controller to reset
- * @new_state: The FIP state to be entered
- *
- * Returns non-zero if the link was up and now isn't.
*/
-static int fcoe_ctlr_reset(struct fcoe_ctlr *fip, enum fip_state new_state)
+static void fcoe_ctlr_reset(struct fcoe_ctlr *fip)
{
- struct fc_lport *lport = fip->lp;
- int link_dropped;
-
- spin_lock_bh(&fip->lock);
fcoe_ctlr_reset_fcfs(fip);
del_timer(&fip->timer);
- fip->state = new_state;
fip->ctlr_ka_time = 0;
fip->port_ka_time = 0;
fip->sol_time = 0;
fip->flogi_oxid = FC_XID_UNKNOWN;
fip->map_dest = 0;
- fip->last_link = 0;
- link_dropped = fip->link;
- fip->link = 0;
- spin_unlock_bh(&fip->lock);
-
- if (link_dropped)
- fc_linkdown(lport);
-
- if (new_state == FIP_ST_ENABLED) {
- fcoe_ctlr_solicit(fip, NULL);
- fc_linkup(lport);
- link_dropped = 0;
- }
- return link_dropped;
}
/**
@@ -322,7 +300,20 @@ static int fcoe_ctlr_reset(struct fcoe_ctlr *fip, enum fip_state new_state)
*/
int fcoe_ctlr_link_down(struct fcoe_ctlr *fip)
{
- return fcoe_ctlr_reset(fip, FIP_ST_LINK_WAIT);
+ int link_dropped;
+
+ LIBFCOE_FIP_DBG(fip, "link down.\n");
+ spin_lock_bh(&fip->lock);
+ fcoe_ctlr_reset(fip);
+ link_dropped = fip->link;
+ fip->link = 0;
+ fip->last_link = 0;
+ fip->state = FIP_ST_LINK_WAIT;
+ spin_unlock_bh(&fip->lock);
+
+ if (link_dropped)
+ fc_linkdown(fip->lp);
+ return link_dropped;
}
EXPORT_SYMBOL(fcoe_ctlr_link_down);
@@ -994,7 +985,13 @@ static void fcoe_ctlr_recv_clr_vlink(struct fcoe_ctlr *fip,
desc_mask);
} else {
LIBFCOE_FIP_DBG(fip, "performing Clear Virtual Link\n");
- fcoe_ctlr_reset(fip, FIP_ST_ENABLED);
+
+ spin_lock_bh(&fip->lock);
+ fcoe_ctlr_reset(fip);
+ spin_unlock_bh(&fip->lock);
+
+ fc_lport_reset(fip->lp);
+ fcoe_ctlr_solicit(fip, NULL);
}
}
@@ -1152,15 +1149,14 @@ static void fcoe_ctlr_timeout(unsigned long arg)
fip->port_ka_time = jiffies +
msecs_to_jiffies(FIP_VN_KA_PERIOD);
fip->ctlr_ka_time = jiffies + sel->fka_period;
- fip->link = 1;
} else {
printk(KERN_NOTICE "libfcoe: host%d: "
"FIP Fibre-Channel Forwarder timed out. "
"Starting FCF discovery.\n",
fip->lp->host->host_no);
- fip->link = 0;
+ fip->reset_req = 1;
+ schedule_work(&fip->link_work);
}
- schedule_work(&fip->link_work);
}
if (sel) {
@@ -1205,20 +1201,24 @@ static void fcoe_ctlr_link_work(struct work_struct *work)
u8 *mac;
int link;
int last_link;
+ int reset;
fip = container_of(work, struct fcoe_ctlr, link_work);
spin_lock_bh(&fip->lock);
last_link = fip->last_link;
link = fip->link;
fip->last_link = link;
+ reset = fip->reset_req;
+ fip->reset_req = 0;
spin_unlock_bh(&fip->lock);
if (last_link != link) {
if (link)
fc_linkup(fip->lp);
else
- fcoe_ctlr_reset(fip, FIP_ST_LINK_WAIT);
- }
+ fc_linkdown(fip->lp);
+ } else if (reset && link)
+ fc_lport_reset(fip->lp);
if (fip->send_ctlr_ka) {
fip->send_ctlr_ka = 0;
diff --git a/include/scsi/libfcoe.h b/include/scsi/libfcoe.h
index 2344a00e92e..e38ffa05dc2 100644
--- a/include/scsi/libfcoe.h
+++ b/include/scsi/libfcoe.h
@@ -108,6 +108,7 @@ struct fcoe_ctlr {
u8 flogi_count;
u8 link;
u8 last_link;
+ u8 reset_req;
u8 map_dest;
u8 spma;
u8 send_ctlr_ka;