4.9-stable review patch. If anyone has any objections, please let me know.
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From: Ivan Khoronzhuk ivan.khoronzhuk@linaro.org
[ Upstream commit 5e391dc5a8d801a2410d0032ad4a428d1d61800c ]
The CPDMA_TX_PRIORITY_MAP in real is vlan pcp field priority mapping register and basically replaces vlan pcp field for tagged packets. So, set it to be 1:1 mapping. Otherwise, it will cause unexpected change of egress vlan tagged packets, like prio 2 -> prio 5.
Fixes: e05107e6b747 ("net: ethernet: ti: cpsw: add multi queue support") Reviewed-by: Grygorii Strashko grygorii.strashko@ti.com Signed-off-by: Ivan Khoronzhuk ivan.khoronzhuk@linaro.org Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/ti/cpsw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -124,7 +124,7 @@ do { \
#define RX_PRIORITY_MAPPING 0x76543210 #define TX_PRIORITY_MAPPING 0x33221100 -#define CPDMA_TX_PRIORITY_MAP 0x01234567 +#define CPDMA_TX_PRIORITY_MAP 0x76543210
#define CPSW_VLAN_AWARE BIT(1) #define CPSW_ALE_VLAN_AWARE 1