* [PATCH v2] net: ethernet: ti: cpsw: fix tx vlan priority mapping
@ 2018-04-19 19:49 Ivan Khoronzhuk
2018-04-22 18:56 ` David Miller
0 siblings, 1 reply; 2+ messages in thread
From: Ivan Khoronzhuk @ 2018-04-19 19:49 UTC (permalink / raw)
To: grygorii.strashko
Cc: davem, linux-omap, netdev, linux-kernel, Ivan Khoronzhuk
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>
---
Based on net/master
drivers/net/ethernet/ti/cpsw.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 3037127..74f8284 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -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)
--
2.7.4
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH v2] net: ethernet: ti: cpsw: fix tx vlan priority mapping
2018-04-19 19:49 [PATCH v2] net: ethernet: ti: cpsw: fix tx vlan priority mapping Ivan Khoronzhuk
@ 2018-04-22 18:56 ` David Miller
0 siblings, 0 replies; 2+ messages in thread
From: David Miller @ 2018-04-22 18:56 UTC (permalink / raw)
To: ivan.khoronzhuk; +Cc: grygorii.strashko, linux-omap, netdev, linux-kernel
From: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Date: Thu, 19 Apr 2018 22:49:09 +0300
> 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>
> ---
Applied and queud up for -stable.
^ permalink raw reply [flat|nested] 2+ messages in thread
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