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authorSatish Baddipadige <satish.baddipadige@broadcom.com>2016-08-03 09:43:59 +0530
committerDavid S. Miller <davem@davemloft.net>2016-08-03 11:56:18 -0700
commit087d7a8c917491e6e7feb707a858d624bf5b5f14 (patch)
tree8f369e3d24cf0ae5585ed779ac98546062c0e86c /drivers
parent1f415a74b0ca64b5bfacbb12d71ed2ec050a8cfb (diff)
tg3: Fix for diasllow rx coalescing time to be 0
When the rx coalescing time is 0, interrupts are not generated from the controller and rx path hangs. To avoid this rx hang, updating the driver to not allow rx coalescing time to be 0. Signed-off-by: Satish Baddipadige <satish.baddipadige@broadcom.com> Signed-off-by: Siva Reddy Kallam <siva.kallam@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/broadcom/tg3.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index ff300f7cf529..f3c6c915e423 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -14014,6 +14014,7 @@ static int tg3_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
}
if ((ec->rx_coalesce_usecs > MAX_RXCOL_TICKS) ||
+ (!ec->rx_coalesce_usecs) ||
(ec->tx_coalesce_usecs > MAX_TXCOL_TICKS) ||
(ec->rx_max_coalesced_frames > MAX_RXMAX_FRAMES) ||
(ec->tx_max_coalesced_frames > MAX_TXMAX_FRAMES) ||