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Message-Id: <20221021171055.85888-1-sebastian.reichel@collabora.com>
Date: Fri, 21 Oct 2022 19:10:55 +0200
From: Sebastian Reichel <sebastian.reichel@...labora.com>
To: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc: "David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Alexandre Torgue <alexandre.torgue@...s.st.com>,
Giuseppe Cavallaro <peppe.cavallaro@...com>,
Jose Abreu <joabreu@...opsys.com>, netdev@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Sebastian Reichel <sebastian.reichel@...labora.com>,
kernel@...labora.com
Subject: [PATCH 1/1] dt-bindings: net: snps,dwmac: Document queue config subnodes
The queue configuration is referenced by snps,mtl-rx-config and
snps,mtl-tx-config. Most in-tree DTs put the referenced object
as child node of the dwmac node.
This adds proper description for this setup, which has the
advantage of properly making sure only known properties are
used.
Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com>
---
.../devicetree/bindings/net/snps,dwmac.yaml | 154 ++++++++++++------
1 file changed, 108 insertions(+), 46 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index 13b984076af5..0bf6112cec2f 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -167,56 +167,118 @@ properties:
snps,mtl-rx-config:
$ref: /schemas/types.yaml#/definitions/phandle
description:
- Multiple RX Queues parameters. Phandle to a node that can
- contain the following properties
- * snps,rx-queues-to-use, number of RX queues to be used in the
- driver
- * Choose one of these RX scheduling algorithms
- * snps,rx-sched-sp, Strict priority
- * snps,rx-sched-wsp, Weighted Strict priority
- * For each RX queue
- * Choose one of these modes
- * snps,dcb-algorithm, Queue to be enabled as DCB
- * snps,avb-algorithm, Queue to be enabled as AVB
- * snps,map-to-dma-channel, Channel to map
- * Specifiy specific packet routing
- * snps,route-avcp, AV Untagged Control packets
- * snps,route-ptp, PTP Packets
- * snps,route-dcbcp, DCB Control Packets
- * snps,route-up, Untagged Packets
- * snps,route-multi-broad, Multicast & Broadcast Packets
- * snps,priority, bitmask of the tagged frames priorities assigned to
- the queue
+ Multiple RX Queues parameters. Phandle to a node that
+ implements the 'rx-queues-config' object described in
+ this binding.
+
+ rx-queues-config:
+ type: object
+ properties:
+ snps,rx-queues-to-use:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: number of RX queues to be used in the driver
+ snps,rx-sched-sp:
+ type: boolean
+ description: Strict priority
+ snps,rx-sched-wsp:
+ type: boolean
+ description: Weighted Strict priority
+ patternProperties:
+ "^queue[0-9]$":
+ description: Each subnode represents a queue.
+ type: object
+ properties:
+ snps,dcb-algorithm:
+ type: boolean
+ description: Queue to be enabled as DCB
+ snps,avb-algorithm:
+ type: boolean
+ description: Queue to be enabled as AVB
+ snps,map-to-dma-channel:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: DMA channel id to map
+ snps,route-avcp:
+ type: boolean
+ description: AV Untagged Control packets
+ snps,route-ptp:
+ type: boolean
+ description: PTP Packets
+ snps,route-dcbcp:
+ type: boolean
+ description: DCB Control Packets
+ snps,route-up:
+ type: boolean
+ description: Untagged Packets
+ snps,route-multi-broad:
+ type: boolean
+ description: Multicast & Broadcast Packets
+ snps,priority:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Bitmask of the tagged frames priorities assigned to the queue
+ additionalProperties: false
snps,mtl-tx-config:
$ref: /schemas/types.yaml#/definitions/phandle
description:
- Multiple TX Queues parameters. Phandle to a node that can
- contain the following properties
- * snps,tx-queues-to-use, number of TX queues to be used in the
- driver
- * Choose one of these TX scheduling algorithms
- * snps,tx-sched-wrr, Weighted Round Robin
- * snps,tx-sched-wfq, Weighted Fair Queuing
- * snps,tx-sched-dwrr, Deficit Weighted Round Robin
- * snps,tx-sched-sp, Strict priority
- * For each TX queue
- * snps,weight, TX queue weight (if using a DCB weight
- algorithm)
- * 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
- * snps,high_credit, max write outstanding req. limit
- * snps,low_credit, max read outstanding req. limit
- * 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.
+ Multiple TX Queues parameters. Phandle to a node that
+ implements the 'tx-queues-config' object described in
+ this binding.
+
+ tx-queues-config:
+ type: object
+ properties:
+ snps,tx-queues-to-use:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: number of TX queues to be used in the driver
+ snps,tx-sched-wrr:
+ type: boolean
+ description: Weighted Round Robin
+ snps,tx-sched-wfq:
+ type: boolean
+ description: Weighted Fair Queuing
+ snps,tx-sched-dwrr:
+ type: boolean
+ description: Deficit Weighted Round Robin
+ snps,tx-sched-sp:
+ type: boolean
+ description: Strict priority
+ patternProperties:
+ "^queue[0-9]$":
+ description: Each subnode represents a queue.
+ type: object
+ properties:
+ snps,weight:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: TX queue weight (if using a DCB weight algorithm)
+ snps,dcb-algorithm:
+ type: boolean
+ description: TX queue will be working in DCB
+ snps,avb-algorithm:
+ type: boolean
+ description:
+ TX queue will be working in AVB.
+ Queue 0 is reserved for legacy traffic and so no AVB is
+ available in this queue.
+ snps,send_slope:
+ type: boolean
+ description: enable Low Power Interface
+ snps,idle_slope:
+ type: boolean
+ description: unlock on WoL
+ snps,high_credit:
+ type: boolean
+ description: max write outstanding req. limit
+ snps,low_credit:
+ type: boolean
+ description: max read outstanding req. limit
+ snps,priority:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Bitmask of the tagged frames 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.
+ additionalProperties: false
snps,reset-gpio:
deprecated: true
--
2.35.1
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