From: Satish Baddipadige Date: Wed, 3 Aug 2016 04:13:59 +0000 (+0530) Subject: tg3: Fix for diasllow rx coalescing time to be 0 X-Git-Tag: v4.14-rc1~2261^2~174^2~1 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=087d7a8c917491e6e7feb707a858d624bf5b5f14;p=platform%2Fkernel%2Flinux-rpi.git 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 Signed-off-by: Siva Reddy Kallam Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index ff300f7..f3c6c91 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) ||