Re: [PATCH 5/7] Documentation: DT: net: cpsw: allow to specify descriptors pool size
From: Ivan Khoronzhuk <hidden>
Date: 2016-12-02 11:28:45
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On Thu, Dec 01, 2016 at 05:34:30PM -0600, Grygorii Strashko wrote:
quoted hunk ↗ jump to hunk
Add optional property "descs_pool_size" to specify buffer descriptor's pool size. The "descs_pool_size" should define total number of CPDMA CPPI descriptors to be used for both ingress/egress packets processing. If not specified - the default value 256 will be used which will allow to place descriptor's pool into the internal CPPI RAM on most of TI SoC. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> --- Documentation/devicetree/bindings/net/cpsw.txt | 5 +++++ 1 file changed, 5 insertions(+)diff --git a/Documentation/devicetree/bindings/net/cpsw.txt b/Documentation/devicetree/bindings/net/cpsw.txt index 5ad439f..b99d196 100644 --- a/Documentation/devicetree/bindings/net/cpsw.txt +++ b/Documentation/devicetree/bindings/net/cpsw.txt@@ -35,6 +35,11 @@ Optional properties: For example in dra72x-evm, pcf gpio has to be driven low so that cpsw slave 0 and phy data lines are connected via mux. +- descs_pool_size : total number of CPDMA CPPI descriptors to be used for + both ingress/egress packets processing. if not + specified the default value 256 will be used which + will allow to place descriptors pool into the + internal CPPI RAM.
Does it describe h/w? Why now module parameter? or even smth like ethtool num ring entries?
Slave Properties: -- 2.10.1