Re: [PATCH 0/5] Support hot-unbind in IOAT

From: Logan Gunthorpe
Date: Tue Dec 24 2019 - 21:25:53 EST




On 2019-12-23 9:50 p.m., Vinod Koul wrote:
> On 16-12-19, 12:01, Logan Gunthorpe wrote:
>> Hey,
>>
>> This patchset creates some common infrastructure which I will use in the
>> next version of the PLX driver. It adds a reference count to the
>> dma_device struct which is taken and released every time a channel
>> is allocated or freed. A call back is used to allow the driver to
>> free the underlying memory and do any final cleanup.
>>
>> For a use-case, I've adjusted the ioat driver to properly support
>> hot-unbind. The driver was already pretty close as it already had
>> a shutdown state; so it mostly only required freeing the memory
>> correctly and calling ioat_shutdown at the correct time.
>
> I didnt find anything else (apart from one change i pointed), so I have
> applied this and will fix the comment. No point in delaying this

Great, thanks!

Logan