e1000e: Change wthresh to 1 to avoid possible Tx stalls

[deliverable/linux.git] / drivers / net / ethernet / intel / e1000e / netdev.c

diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index de57a2ba6bde613504cd994662f7377e8e3461cc..f444eb0b76d8d9c0c7147b8dc4a9fa7266d517b9 100644 (file)
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -2831,7 +2831,7 @@ static void e1000_configure_tx(struct e1000_adapter *adapter)
                 * set up some performance related parameters to encourage the
                 * hardware to use the bus more efficiently in bursts, depends
                 * on the tx_int_delay to be enabled,
-                * wthresh = 5 ==> burst write a cacheline (64 bytes) at a time
+                * wthresh = 1 ==> burst write is disabled to avoid Tx stalls
                 * hthresh = 1 ==> prefetch when one or more available
                 * pthresh = 0x1f ==> prefetch if internal cache 31 or less
                 * BEWARE: this seems to work but should be considered first if