From 980f5156ab2d75e0462f3811e8a92acd06b0577b Mon Sep 17 00:00:00 2001 From: Vasu Dev Date: Wed, 27 Jul 2011 15:11:05 -0700 Subject: [PATCH] [SCSI] fcoe: add fip retry to avoid missing critical keep alive Use pending queue to retry FIP frame in case its tx fails and use common pending queue for both fcoe and fip frames using fcoe_port_send. Signed-off-by: Vasu Dev Tested-by: Ross Brattain Signed-off-by: Robert Love Signed-off-by: James Bottomley --- drivers/scsi/fcoe/fcoe.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c index 945df21ac017..528b86bca491 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -486,6 +486,19 @@ static int fcoe_fip_recv(struct sk_buff *skb, struct net_device *netdev, return 0; } +/** + * fcoe_port_send() - Send an Ethernet-encapsulated FIP/FCoE frame + * @port: The FCoE port + * @skb: The FIP/FCoE packet to be sent + */ +static void fcoe_port_send(struct fcoe_port *port, struct sk_buff *skb) +{ + if (port->fcoe_pending_queue.qlen) + fcoe_check_wait_queue(port->lport, skb); + else if (fcoe_start_io(skb)) + fcoe_check_wait_queue(port->lport, skb); +} + /** * fcoe_fip_send() - Send an Ethernet-encapsulated FIP frame * @fip: The FCoE controller @@ -494,7 +507,7 @@ static int fcoe_fip_recv(struct sk_buff *skb, struct net_device *netdev, static void fcoe_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb) { skb->dev = fcoe_from_ctlr(fip)->netdev; - dev_queue_xmit(skb); + fcoe_port_send(lport_priv(fip->lp), skb); } /** @@ -1575,11 +1588,7 @@ int fcoe_xmit(struct fc_lport *lport, struct fc_frame *fp) /* send down to lld */ fr_dev(fp) = lport; - if (port->fcoe_pending_queue.qlen) - fcoe_check_wait_queue(lport, skb); - else if (fcoe_start_io(skb)) - fcoe_check_wait_queue(lport, skb); - + fcoe_port_send(port, skb); return 0; } -- 2.20.1