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| author | Seb Laveze <sebastien.laveze@nxp.com> | 2021-01-11 09:14:07 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-01-11 15:18:47 -0800 |
| commit | 938288349ca8a9d4b936bf5d2f6dd4526a598974 (patch) | |
| tree | b55304ad04a1addfcdf9293e5d4edbe82e39cd84 /Documentation | |
| parent | f97844f9c518172f813b7ece18a9956b1f70c1bb (diff) | |
| download | linux-938288349ca8a9d4b936bf5d2f6dd4526a598974.tar.bz2 | |
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 <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>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/net/snps,dwmac.yaml | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml index b2f6083f556a..dfbf5fe4547a 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 |