The recent commit 087d7a8c disallows to set Rx coalescing time to be 0 as this stops generating interrupts for the incoming packets. I found the zero Tx coalescing time stops generating interrupts similarly for outgoing packets and fires Tx watchdog later. To avoid this, don't allow to set Tx coalescing time to 0.
Cc: [email protected] Cc: [email protected] Cc: [email protected] Signed-off-by: Ivan Vecera <[email protected]> --- drivers/net/ethernet/broadcom/tg3.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 6592612..07e3beb 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -14012,6 +14012,7 @@ 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->tx_coalesce_usecs) || (ec->rx_max_coalesced_frames > MAX_RXMAX_FRAMES) || (ec->tx_max_coalesced_frames > MAX_TXMAX_FRAMES) || (ec->rx_coalesce_usecs_irq > max_rxcoal_tick_int) || -- 2.7.3
