| From foo@baz Wed Aug 22 09:42:09 CEST 2018 |
| From: Ganesh Goudar <ganeshgr@chelsio.com> |
| Date: Sat, 23 Jun 2018 20:28:26 +0530 |
| Subject: cxgb4: when disabling dcb set txq dcb priority to 0 |
| |
| From: Ganesh Goudar <ganeshgr@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 <robert@cloudmedia.eu> |
| CC: David Ahern <dsa@cumulusnetworks.com> |
| Signed-off-by: Casey Leedom <leedom@chelsio.com> |
| Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> |
| Signed-off-by: David S. Miller <davem@davemloft.net> |
| Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@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 |
| @@ -274,7 +274,7 @@ 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; |
| } |
| } |
| |
