From 938288349ca8a9d4b936bf5d2f6dd4526a598974 Mon Sep 17 00:00:00 2001 From: Seb Laveze Date: Mon, 11 Jan 2021 09:14:07 +0100 Subject: [PATCH] dt-bindings: net: dwmac: fix queue priority documentation The priority field is not the queue priority (queue priority is fixed) but a bitmask of priorities assigned to this queue. In receive, priorities relate to tagged frames priorities. In transmit, priorities relate to PFC frames. Signed-off-by: Seb Laveze Link: https://lore.kernel.org/r/20210111081406.1348622-1-sebastien.laveze@oss.nxp.com Signed-off-by: Jakub Kicinski --- Documentation/devicetree/bindings/net/snps,dwmac.yaml | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml index b2f6083..dfbf5fe 100644 --- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml +++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml @@ -161,7 +161,8 @@ properties: * snps,route-dcbcp, DCB Control Packets * snps,route-up, Untagged Packets * snps,route-multi-broad, Multicast & Broadcast Packets - * snps,priority, RX queue priority (Range 0x0 to 0xF) + * snps,priority, bitmask of the tagged frames priorities assigned to + the queue snps,mtl-tx-config: $ref: /schemas/types.yaml#/definitions/phandle @@ -188,7 +189,10 @@ properties: * snps,idle_slope, unlock on WoL * snps,high_credit, max write outstanding req. limit * snps,low_credit, max read outstanding req. limit - * snps,priority, TX queue priority (Range 0x0 to 0xF) + * snps,priority, bitmask of the priorities assigned to the queue. + When a PFC frame is received with priorities matching the bitmask, + the queue is blocked from transmitting for the pause time specified + in the PFC frame. snps,reset-gpio: deprecated: true -- 2.7.4