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| author |   Joao Pinto <Joao.Pinto@synopsys.com> | 2017-03-10 18:24:59 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-03-12 23:41:04 -0700 |
| commit | 19d9187317979cf0c25f67017d2676149abc46b2 (patch) | |
| tree | 5107036a3df1310fc8e7d58ef545d9905591368e /Documentation | |
| parent | net: stmmac: mac debug prepared for multiple queues (diff) | |
| download | linux-dev-19d9187317979cf0c25f67017d2676149abc46b2.tar.xz linux-dev-19d9187317979cf0c25f67017d2676149abc46b2.zip | |
net: stmmac: configuration of CBS in case of a TX AVB queue
This patch adds the configuration of the AVB Credit-Based Shaper.
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.txt | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/net/stmmac.txt b/Documentation/devicetree/bindings/net/stmmac.txt index 04a258e2d4e0..a7b0e41cb264 100644 --- a/Documentation/devicetree/bindings/net/stmmac.txt +++ b/Documentation/devicetree/bindings/net/stmmac.txt @@ -92,8 +92,15 @@ Optional properties: - 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) - + - 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 + - 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 Examples: stmmac_axi_setup: stmmac-axi-config { @@ -112,10 +119,19 @@ Examples: }; mtl_tx_setup: tx-queues-config { - snps,tx-queues-to-use = <1>; + snps,tx-queues-to-use = <2>; snps,tx-sched-wrr; queue0 { snps,weight = <0x10>; + snps,dcb-algorithm; + }; + + queue1 { + snps,avb-algorithm; + snps,send_slope = <0x1000>; + snps,idle_slope = <0x1000>; + snps,high_credit = <0x3E800>; + snps,low_credit = <0xFFC18000>; }; }; |