Re: MCP251x SPI CAN controller on Cavium ThunderX

[Mark Brown]

On Wed, Nov 15, 2017 at 01:07:54PM +0100, Jan Glauber wrote:

> To support this full duplex transfer the Cavium SPI controller needs
> to know the receive lenght before setting up the transaction.

> spi_transfer only includes the total length, so I don't see how this
> should work.

For a full duplex transfer the recieve length *is* the total length of
the transfer.  If there is a mix of tx, rx and full duplex then you need
multiple xfers in the transfer.

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