From c216e8762f96b6bddf043b5788094e0b698dd4b3 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Thu, 13 Oct 2016 15:10:56 +0200
Subject: [PATCH] scsi: fcoe: set default TC priority
If DCB is not enabled or compiled in we still should be setting
a sane default priority. So put FCoE frames in priority class
'interactive' and FIP frames in priority class 'besteffort'.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
---
drivers/scsi/fcoe/fcoe.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index c907661a2ec369..9876fca8946a3a 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -2168,6 +2168,8 @@ static bool fcoe_match(struct net_device *netdev)
*/
static void fcoe_dcb_create(struct fcoe_interface *fcoe)
{
+ int ctlr_prio = TC_PRIO_BESTEFFORT;
+ int fcoe_prio = TC_PRIO_INTERACTIVE;
#ifdef CONFIG_DCB
int dcbx;
u8 fup, up;
@@ -2194,10 +2196,12 @@ static void fcoe_dcb_create(struct fcoe_interface *fcoe)
fup = dcb_getapp(netdev, &app);
}
- fcoe->priority = ffs(up) ? ffs(up) - 1 : 0;
- ctlr->priority = ffs(fup) ? ffs(fup) - 1 : fcoe->priority;
+ fcoe_prio = ffs(up) ? ffs(up) - 1 : 0;
+ ctlr_prio = ffs(fup) ? ffs(fup) - 1 : fcoe_prio;
}
#endif
+ fcoe->priority = fcoe_prio;
+ ctlr->priority = ctlr_prio;
}
enum fcoe_create_link_state {
--
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