diff options
| author | Lendacky, Thomas <Thomas.Lendacky@amd.com> | 2015-03-20 11:50:16 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-03-20 16:33:57 -0400 |
| commit | ceb8f6be7e5a254cb5b894be7a032170ec34607b (patch) | |
| tree | df9837703ec71bc0e0ecd903ecd618c91bef8fc7 /drivers/net/ethernet/amd/xgbe/xgbe-drv.c | |
| parent | 600c8811d3f608d28a6a79bfbcca08bb7962f301 (diff) | |
amd-xgbe: Use the new DMA memory barriers where appropriate
Use the new lighter weight memory barriers when working with the device
descriptors.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/amd/xgbe/xgbe-drv.c')
| -rw-r--r-- | drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c index 885b02b5be07..8635c9484b3a 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c @@ -1800,6 +1800,9 @@ static void xgbe_rx_refresh(struct xgbe_channel *channel) ring->dirty++; } + /* Make sure everything is written before the register write */ + wmb(); + /* Update the Rx Tail Pointer Register with address of * the last cleaned entry */ rdata = XGBE_GET_DESC_DATA(ring, ring->dirty - 1); @@ -1863,7 +1866,7 @@ static int xgbe_tx_poll(struct xgbe_channel *channel) /* Make sure descriptor fields are read after reading the OWN * bit */ - rmb(); + dma_rmb(); #ifdef XGMAC_ENABLE_TX_DESC_DUMP xgbe_dump_tx_desc(ring, ring->dirty, 1, 0); |