Messages in this thread | | | Date | Tue, 5 Oct 2021 14:01:27 +0800 | From | Shawn Guo <> | Subject | Re: [PATCH devicetree] arm64: dts: ls1028a: mark internal links between Felix and ENETC as capable of flow control |
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On Wed, Sep 29, 2021 at 02:52:26PM +0300, Vladimir Oltean wrote: > The internal Ethernet switch suffers from erratum A-050484 ("Ethernet > flow control not functional on L2 switch NPI port when XFH is used"). > XFH stands for "Extraction Frame Header" - which basically means the > default "ocelot" DSA tagging protocol. > > However, the switch supports one other tagging protocol - "ocelot-8021q", > and this is not subject to the erratum above. So describe the hardware > ability to pass PAUSE frames in the device tree, and let the driver > figure out whether it should use flow control on the CPU port or not, > depending on whether the "ocelot" or "ocelot-8021q" tagging protocol is > being used. > > Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Applied, thanks!
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