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From: David Marchand <david.marchand@redhat.com>
To: anatoly.burakov@intel.com, Nipun Gupta <nipun.gupta@amd.com>
Cc: dev@dpdk.org, thomas@monjalon.net, ferruh.yigit@amd.com,
	 nikhil.agarwal@amd.com
Subject: Re: [PATCH v2] vfio: do not coalesce DMA mappings
Date: Thu, 2 Feb 2023 11:48:34 +0100	[thread overview]
Message-ID: <CAJFAV8zqSonhewH_RyOSMEPLG1HyyN3jVOe_nh_mJRvzTYLjaw@mail.gmail.com> (raw)
In-Reply-To: <20230104051936.2456411-1-nipun.gupta@amd.com>

Hi,

On Wed, Jan 4, 2023 at 6:19 AM Nipun Gupta <nipun.gupta@amd.com> wrote:
>
> At the cleanup time when dma unmap is done, linux kernel
> does not allow unmap of individual segments which were
> coalesced together while creating the DMA map for type1 IOMMU
> mappings. So, this change updates the mapping of the memory
> segments(hugepages) on a per-page basis.
>
> Signed-off-by: Nipun Gupta <nipun.gupta@amd.com>
> Signed-off-by: Nikhil Agarwal <nikhil.agarwal@amd.com>

This change is scary.

I won't take it without a review from the maintainer.
Anatoly, can you have a look?


Thanks.
-- 
David Marchand


  reply	other threads:[~2023-02-02 10:48 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-30  9:58 [PATCH] " Nipun Gupta
2023-01-04  5:19 ` [PATCH v2] " Nipun Gupta
2023-02-02 10:48   ` David Marchand [this message]
2023-02-07  8:56     ` Gupta, Nipun
2023-04-04 14:57       ` Gupta, Nipun
2023-04-04 15:13       ` Burakov, Anatoly
2023-04-04 16:32         ` Nipun Gupta
2023-04-05 14:16           ` Burakov, Anatoly
2023-04-05 15:06             ` Gupta, Nipun
2023-04-24 15:22             ` David Marchand
2023-04-24 16:10               ` Stephen Hemminger
2023-04-24 16:16                 ` Gupta, Nipun
2023-05-10 12:58               ` Nipun Gupta
2023-05-11 14:08                 ` Burakov, Anatoly
2023-04-11 15:13           ` Thomas Monjalon
2023-04-11 16:51             ` Gupta, Nipun
2023-04-07  6:13         ` Nipun Gupta
2023-04-07  7:26           ` David Marchand
2023-05-15 11:16   ` David Marchand
2023-06-29  8:21 ` [PATCH] " Ding, Xuan
2023-06-30  1:45   ` Nipun Gupta
2023-06-30  5:58     ` Ding, Xuan
2023-07-04  5:13       ` Ding, Xuan
2023-07-04  6:53         ` Gupta, Nipun
2023-07-04  8:06           ` Ding, Xuan
2023-07-04  9:23             ` Gupta, Nipun
2023-07-04 14:09               ` Thomas Monjalon
2023-07-04 16:39                 ` Gupta, Nipun
2023-07-04 15:11               ` Ding, Xuan
2023-07-04 16:42                 ` Gupta, Nipun

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