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| author | Joao Pinto <Joao.Pinto@synopsys.com> | 2017-03-10 19:24:51 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-03-13 07:41:02 +0100 |
| commit | d976a525c371276cebd2517349d1d3568a0e48b5 (patch) | |
| tree | 6cf6fd474cdc498716863ad728d74b01faaccc96 /Documentation/devicetree | |
| parent | Merge branch 'stmmac-tegra186' (diff) | |
| download | linux-d976a525c371276cebd2517349d1d3568a0e48b5.tar.xz linux-d976a525c371276cebd2517349d1d3568a0e48b5.zip | |
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/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/net/stmmac.txt | 40 |
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>; }; |