4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ganesh Goudar <ganes...@chelsio.com>
[ Upstream commit 5ce36338a30f9814fc4824f9fe6c20cd83d872c7 ]
When we are disabling DCB, store "0" in txq->dcb_prio
since that's used for future TX Work Request "OVLAN_IDX"
values. Setting non zero priority upon disabling DCB
would halt the traffic.
Reported-by: AMG Zollner Robert <rob...@cloudmedia.eu>
CC: David Ahern <d...@cumulusnetworks.com>
Signed-off-by: Casey Leedom <lee...@chelsio.com>
Signed-off-by: Ganesh Goudar <ganes...@chelsio.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Sasha Levin <alexander.le...@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -338,7 +338,7 @@ static void dcb_tx_queue_prio_enable(str
"Can't %s DCB Priority on port %d, TX Queue %d:
err=%d\n",
enable ? "set" : "unset", pi->port_id, i, -err);
else
- txq->dcb_prio = value;
+ txq->dcb_prio = enable ? value : 0;
}
}
#endif /* CONFIG_CHELSIO_T4_DCB */
