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tg3: Fix for diasllow rx coalescing time to be 0

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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>
This commit is contained in:
Satish Baddipadige 2016-08-03 09:43:59 +05:30 committed by David S. Miller
parent 1f415a74b0
commit 087d7a8c91
1 changed files with 1 additions and 0 deletions
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drivers/net/ethernet/broadcom/tg3.c
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@ -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) || if ((ec->rx_coalesce_usecs > MAX_RXCOL_TICKS) ||
(!ec->rx_coalesce_usecs) ||
(ec->tx_coalesce_usecs > MAX_TXCOL_TICKS) || (ec->tx_coalesce_usecs > MAX_TXCOL_TICKS) ||
(ec->rx_max_coalesced_frames > MAX_RXMAX_FRAMES) || (ec->rx_max_coalesced_frames > MAX_RXMAX_FRAMES) ||
(ec->tx_max_coalesced_frames > MAX_TXMAX_FRAMES) || (ec->tx_max_coalesced_frames > MAX_TXMAX_FRAMES) ||