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authorGuo-Fu Tseng <cooldavid@cooldavid.org>2012-02-22 08:58:10 +0000
committerDavid S. Miller <davem@davemloft.net>2012-02-22 14:44:41 -0500
commitba9adbe67e288823ac1deb7f11576ab5653f833e (patch)
tree3641e0febbe8ebcbf649f1917b248ff11a08e6a3 /drivers/net/ethernet/jme.c
parent597cdbc2239e6019bbb2dd73b266f436166f0427 (diff)
downloadlinux-ba9adbe67e288823ac1deb7f11576ab5653f833e.tar.gz
jme: Fix FIFO flush issue
Set the RX FIFO flush watermark lower. According to Federico and JMicron's reply, setting it to 16QW would be stable on most platforms. Otherwise, user might experience packet drop issue. CC: stable@kernel.org Reported-by: Federico Quagliata <federico@quagliata.org> Fixed-by: Federico Quagliata <federico@quagliata.org> Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/jme.c')
-rw-r--r--drivers/net/ethernet/jme.c10
1 files changed, 1 insertions, 9 deletions
diff --git a/drivers/net/ethernet/jme.c b/drivers/net/ethernet/jme.c
index 27d651a80f3f..55cbf65512c3 100644
--- a/drivers/net/ethernet/jme.c
+++ b/drivers/net/ethernet/jme.c
@@ -2328,19 +2328,11 @@ jme_change_mtu(struct net_device *netdev, int new_mtu)
((new_mtu) < IPV6_MIN_MTU))
return -EINVAL;
- if (new_mtu > 4000) {
- jme->reg_rxcs &= ~RXCS_FIFOTHNP;
- jme->reg_rxcs |= RXCS_FIFOTHNP_64QW;
- jme_restart_rx_engine(jme);
- } else {
- jme->reg_rxcs &= ~RXCS_FIFOTHNP;
- jme->reg_rxcs |= RXCS_FIFOTHNP_128QW;
- jme_restart_rx_engine(jme);
- }
netdev->mtu = new_mtu;
netdev_update_features(netdev);
+ jme_restart_rx_engine(jme);
jme_reset_link(jme);
return 0;