net: stmmac: multiple queues dt configuration

[linux-2.6-block.git] / Documentation / devicetree / bindings / net / stmmac.txt

diff --git a/Documentation/devicetree/bindings/net/stmmac.txt b/Documentation/devicetree/bindings/net/stmmac.txt
index 11b27dfd1627f8361f497f4c80871c2b7c525ae3..04a258e2d4e07fd0f7b92066e30ac9a5d1efc2d2 100644 (file)
--- a/Documentation/devicetree/bindings/net/stmmac.txt
+++ b/Documentation/devicetree/bindings/net/stmmac.txt
@@ -72,6 +72,27 @@ Optional properties:
        - snps,mb: mixed-burst
        - snps,rb: rebuild INCRx Burst
 - mdio: with compatible = "snps,dwmac-mdio", create and register mdio bus.
+- Multiple RX Queues parameters: below the list of all the parameters to
+                                configure the multiple RX queues:
+       - 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
+- Multiple TX Queues parameters: below the list of all the parameters to
+                                configure the multiple TX queues:
+       - 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 weighted algorithm)
 
 Examples:
 
@@ -81,6 +102,23 @@ Examples:
                snps,blen = <256 128 64 32 0 0 0>;
        };
 
+       mtl_rx_setup: rx-queues-config {
+               snps,rx-queues-to-use = <1>;
+               snps,rx-sched-sp;
+               queue0 {
+                       snps,dcb-algorithm;
+                       snps,map-to-dma-channel = <0x0>;
+               };
+       };
+
+       mtl_tx_setup: tx-queues-config {
+               snps,tx-queues-to-use = <1>;
+               snps,tx-sched-wrr;
+               queue0 {
+                       snps,weight = <0x10>;
+               };
+       };
+
        gmac0: ethernet@e0800000 {
                compatible = "st,spear600-gmac";
                reg = <0xe0800000 0x8000>;
@@ -104,4 +142,6 @@ Examples:
                        phy1: ethernet-phy@0 {
                        };
                };
+               snps,mtl-rx-config = <&mtl_rx_setup>;
+               snps,mtl-tx-config = <&mtl_tx_setup>;
        };