diff options
| -rw-r--r-- | Documentation/devicetree/bindings/net/stmmac.txt | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 3 |
2 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/net/stmmac.txt b/Documentation/devicetree/bindings/net/stmmac.txt index 784d98862b52..f652b0c384ce 100644 --- a/Documentation/devicetree/bindings/net/stmmac.txt +++ b/Documentation/devicetree/bindings/net/stmmac.txt @@ -103,6 +103,8 @@ Optional properties: - Choose one of these modes: - snps,dcb-algorithm: TX queue will be working in DCB - snps,avb-algorithm: TX queue will be working in AVB + [Attention] Queue 0 is reserved for legacy traffic + and so no AVB is available in this queue. - Configure Credit Base Shaper (if AVB Mode selected): - snps,send_slope: enable Low Power Interface - snps,idle_slope: unlock on WoL diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 43361f324229..c1c63197ff73 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -1880,7 +1880,8 @@ static void stmmac_configure_cbs(struct stmmac_priv *priv) u32 mode_to_use; u32 queue; - for (queue = 0; queue < tx_queues_count; queue++) { + /* queue 0 is reserved for legacy traffic */ + for (queue = 1; queue < tx_queues_count; queue++) { mode_to_use = priv->plat->tx_queues_cfg[queue].mode_to_use; if (mode_to_use == MTL_QUEUE_DCB) continue; |