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From: Logan Gunthorpe <>
To: Vinod Koul <>
	Dan Williams <>,
	Dave Jiang <>, Kit Chow <>
Subject: Re: [PATCH 0/5] Support hot-unbind in IOAT
Date: Tue, 24 Dec 2019 19:25:39 -0700
Message-ID: <> (raw)
In-Reply-To: <20191224045004.GI2536@vkoul-mobl>

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!


      reply index

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-16 19:01 Logan Gunthorpe
2019-12-16 19:01 ` [PATCH 1/5] dmaengine: Store module owner in dma_device struct Logan Gunthorpe
2019-12-16 19:01 ` [PATCH 2/5] dmaengine: Call module_put() after device_free_chan_resources() Logan Gunthorpe
2019-12-24  4:37   ` Vinod Koul
2019-12-16 19:01 ` [PATCH 3/5] dmaengine: Move dma_channel_rebalance() infrastructure up in code Logan Gunthorpe
2019-12-16 19:01 ` [PATCH 4/5] dmaengine: Add reference counting to dma_device struct Logan Gunthorpe
2019-12-16 19:01 ` [PATCH 5/5] dmaengine: ioat: Support in-use unbind Logan Gunthorpe
2019-12-17 16:33   ` Dave Jiang
2019-12-24  4:50 ` [PATCH 0/5] Support hot-unbind in IOAT Vinod Koul
2019-12-25  2:25   ` Logan Gunthorpe [this message]

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