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net: ethernet: ti: cpsw: fix tx vlan priority mapping 

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: e05107e6b7 ("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>
This commit is contained in:
Ivan Khoronzhuk 2018-04-19 22:49:09 +03:00 committed by David S. Miller
parent b905ef9ab9
commit 5e391dc5a8
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/ti/cpsw.c
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@ -129,7 +129,7 @@ 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_RX_VLAN_ENCAP BIT(2)