| Message ID | 1456849931-9533-1-git-send-email-asd@marian1000.go.ro |
|---|---|
| State | Rejected, archived |
| Delegated to: | David Miller |
| Headers | show |
Corcodel Marian <asd@marian1000.go.ro> :
> This patch add 256 Bytes barrier on rx/tx coherent allocations.
It does not make much sense unless you want to use a non power of two
value for NUM_.._DESC or a value < 16 with some strange kernel where
dma_alloc_coherent does not provide page alignment.
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index 5fd3fca..aeca4fb 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -86,8 +86,8 @@ static const int multicast_filter_limit = 32; #define R8169_NAPI_WEIGHT 64 #define NUM_TX_DESC 1024 /* Number of Tx descriptor registers */ #define NUM_RX_DESC 1024U /* Number of Rx descriptor registers */ -#define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc)) -#define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc)) +#define R8169_TX_RING_BYTES ALIGN((NUM_TX_DESC * sizeof(struct TxDesc)), 256) +#define R8169_RX_RING_BYTES ALIGN((NUM_RX_DESC * sizeof(struct RxDesc)), 256) #define RTL8169_TX_TIMEOUT (6*HZ) #define RTL8169_PHY_TIMEOUT (10*HZ)
This patch add 256 Bytes barrier on rx/tx coherent allocations. Signed-off-by: Corcodel Marian <asd@marian1000.go.ro> --- drivers/net/ethernet/realtek/r8169.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)