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authorJoao Pinto <Joao.Pinto@synopsys.com>2017-03-10 18:24:51 +0000
committerDavid S. Miller <davem@davemloft.net>2017-03-12 23:41:02 -0700
commitd976a525c371276cebd2517349d1d3568a0e48b5 (patch)
tree6cf6fd474cdc498716863ad728d74b01faaccc96 /Documentation
parent429a372e3ec020534bd314dca94e5281dc453d29 (diff)
net: stmmac: multiple queues dt configuration
This patch adds the multiple queues configuration in the Device Tree. It was also created a set of structures to keep the RX and TX queues configurations to be used in the driver. Signed-off-by: Joao Pinto <jpinto@synopsys.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/net/stmmac.txt40
1 files changed, 40 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/stmmac.txt b/Documentation/devicetree/bindings/net/stmmac.txt
index 11b27dfd1627..04a258e2d4e0 100644
--- 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>;
};