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dt-bindings: net: dwmac: fix queue priority documentation

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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 <sebastien.laveze@nxp.com>
Link: https://lore.kernel.org/r/20210111081406.1348622-1-sebastien.laveze@oss.nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Seb Laveze 2021-01-11 09:14:07 +01:00 committed by Jakub Kicinski
parent f97844f9c5
commit 938288349c
1 changed files with 6 additions and 2 deletions
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8
Documentation/devicetree/bindings/net/snps,dwmac.yaml
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@ -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