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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>
This commit is contained in:
Hannes Reinecke 2016-10-13 15:10:56 +02:00 committed by Martin K. Petersen
parent e0a25286d8
commit c216e8762f
1 changed files with 6 additions and 2 deletions
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8
drivers/scsi/fcoe/fcoe.c
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@ -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 {