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authorGanesh Goudar <ganeshgr@chelsio.com>2018-06-23 20:28:26 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-08-24 13:09:05 +0200
commit9265a4509509eed4005fda908de5a154cc8c7e41 (patch)
treef2d0d97b7f9fd7319716bf26d229401a1c38cdb7
parent04954b2dca347ff9ec47ca9f0baaf5d27b384d10 (diff)
downloadlinux-9265a4509509eed4005fda908de5a154cc8c7e41.tar.gz
cxgb4: when disabling dcb set txq dcb priority to 0
[ 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>
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 44a0d04dd8a033..74a42f12064b6a 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -253,7 +253,7 @@ static void dcb_tx_queue_prio_enable(struct net_device *dev, int enable)
"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;
}
}