RE: [PATCH 22/29] net_dma: poll for a descriptor after allocationfailure

[Sosnowski, Maciej]

Williams, Dan J wrote:
> Handle descriptor allocation failures by polling for a descriptor.  The
> driver will force forward progress when polled.  In the best case this
> polling interval will be the time it takes for one dma memcpy
> transaction to complete.  In the worst case, channel hang, we will need
> to wait 100ms for the cleanup watchdog to fire (ioatdma driver).
> 
> Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
> ---

Signed-off-by: Maciej Sosnowski <maciej.sosnowski@xxxxxxxxx>--
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