netdev - Re: [PATCH net-next v5 10/14] net: ethernet: oa_tc6: implement receive path to receive rx ethernet frames

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Message-ID: <79bb1948-3d38-44f3-9653-ebdf80be9c2c@lunn.ch>
Date: Sun, 11 Aug 2024 17:56:12 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
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Subject: Re: [PATCH net-next v5 10/14] net: ethernet: oa_tc6: implement
 receive path to receive rx ethernet frames

On Tue, Jul 30, 2024 at 09:39:02AM +0530, Parthiban Veerasooran wrote:
> SPI rx data buffer can contain one or more receive data chunks. A receive
> data chunk consists a 64 bytes receive data chunk payload followed a
> 4 bytes data footer at the end. The data footer contains the information
> needed to determine the validity and location of the receive frame data
> within the receive data chunk payload and the host can use these
> information to generate ethernet frame. Initially the receive chunks
> available will be updated from the buffer status register and then it
> will be updated from the footer received on each spi data transfer. Tx
> data valid or empty chunks equal to the number receive chunks available
> will be transmitted in the MOSI to receive all the rx chunks.
> Additionally the receive data footer contains the below information as
> well. The received footer will be examined for the receive errors if any.
> 
> Signed-off-by: Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew