From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <dev-bounces@dpdk.org>
Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124])
	by inbox.dpdk.org (Postfix) with ESMTP id 29BB442B12;
	Mon, 15 May 2023 13:17:13 +0200 (CEST)
Received: from mails.dpdk.org (localhost [127.0.0.1])
	by mails.dpdk.org (Postfix) with ESMTP id AC68640687;
	Mon, 15 May 2023 13:17:12 +0200 (CEST)
Received: from us-smtp-delivery-124.mimecast.com
 (us-smtp-delivery-124.mimecast.com [170.10.133.124])
 by mails.dpdk.org (Postfix) with ESMTP id EFAD440395
 for <dev@dpdk.org>; Mon, 15 May 2023 13:17:09 +0200 (CEST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;
 s=mimecast20190719; t=1684149429;
 h=from:from:reply-to:subject:subject:date:date:message-id:message-id:
 to:to:cc:cc:mime-version:mime-version:content-type:content-type:
 content-transfer-encoding:content-transfer-encoding:
 in-reply-to:in-reply-to:references:references;
 bh=ig7XQqA5luuyi4al7rNocn5beGF7zwwrG4yMhtI8tSc=;
 b=INR7uES4x5mq1UcPprKOEnF9d0vr+425ieCN5/np+XbnPwQxVBHDUOp3eMdoOKuTF3vqlF
 hNklAE5evCUpSWS/54tyP/wFKmwH39SWLKMQeH9Rlw6CkHcWiZkezd7eSX1R9LbzTxwQLA
 efYbYYoUpVbXCiTG6CauVKyAFzKgWuQ=
Received: from mail-pf1-f199.google.com (mail-pf1-f199.google.com
 [209.85.210.199]) by relay.mimecast.com with ESMTP with STARTTLS
 (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id
 us-mta-608-BUF2bQyUNiappe6AJG-fOQ-1; Mon, 15 May 2023 07:17:08 -0400
X-MC-Unique: BUF2bQyUNiappe6AJG-fOQ-1
Received: by mail-pf1-f199.google.com with SMTP id
 d2e1a72fcca58-643fdfb437aso46806756b3a.0
 for <dev@dpdk.org>; Mon, 15 May 2023 04:17:08 -0700 (PDT)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20221208; t=1684149427; x=1686741427;
 h=content-transfer-encoding:cc:to:subject:message-id:date:from
 :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc
 :subject:date:message-id:reply-to;
 bh=ig7XQqA5luuyi4al7rNocn5beGF7zwwrG4yMhtI8tSc=;
 b=eLglefz8RXT0GhbJhFkAwEnAdLdHrjoW5d/vbOqrS5ouQKHknYY/20VzIW4Cs9nKvH
 5o/nSLcgLi0qw0DwSV4hXaWx6PufKLD0Bc6aN8l1BhPkA/i6KsLpbtCwfr0G/PSBoV8B
 nixozKy1MBxIegiKrMlUBeHWWxyWdg6N+7fTtixqRVnr8FUxkSUNN5q7ldMZWC09aSkX
 Sj85PZtirVk2P6871ck3UeaZTVo9Wr1LPZqooM41B9DVvJemjc4J8X5GVa9l1hj1WivG
 +vHgY4HSPj13+53i4/K8ET2scBSn2s6Bc9TwZa888p0jqPn14u6LYHklOWumtwFBFe/u
 72mw==
X-Gm-Message-State: AC+VfDxF/RXADqENFEknBGZuFk1XJeY/6VKOugAcu6cYESuQrJhvK4eK
 hWMNSyWAGPA3GG5lIA3nSBDa7RBLEIslvgdhbuTL3nVhYQzEVbg01odMbprnkEXuZZRRlJYRnW2
 VP7BZnZQbk23mv6cSVww=
X-Received: by 2002:a17:903:48e:b0:1a9:4cd5:e7e0 with SMTP id
 jj14-20020a170903048e00b001a94cd5e7e0mr39254201plb.17.1684149427343; 
 Mon, 15 May 2023 04:17:07 -0700 (PDT)
X-Google-Smtp-Source: ACHHUZ5/cisqHKIqMWGhinisLPEfMIxe1u3zA4rXvPQkxriJs7eUMfKcxCRxKLxc1S7516UtPitkHZYWnasA67Aa3xU=
X-Received: by 2002:a17:903:48e:b0:1a9:4cd5:e7e0 with SMTP id
 jj14-20020a170903048e00b001a94cd5e7e0mr39254175plb.17.1684149426993; Mon, 15
 May 2023 04:17:06 -0700 (PDT)
MIME-Version: 1.0
References: <20221230095853.1323616-1-nipun.gupta@amd.com>
 <20230104051936.2456411-1-nipun.gupta@amd.com>
In-Reply-To: <20230104051936.2456411-1-nipun.gupta@amd.com>
From: David Marchand <david.marchand@redhat.com>
Date: Mon, 15 May 2023 13:16:55 +0200
Message-ID: <CAJFAV8zdx+JvTrxNnuviszOmGUUC+f4ky=Ya7bhQ-=BFcLQ7Fw@mail.gmail.com>
Subject: Re: [PATCH v2] vfio: do not coalesce DMA mappings
To: Nipun Gupta <nipun.gupta@amd.com>
Cc: dev@dpdk.org, thomas@monjalon.net, anatoly.burakov@intel.com, 
 ferruh.yigit@amd.com, nikhil.agarwal@amd.com
X-Mimecast-Spam-Score: 0
X-Mimecast-Originator: redhat.com
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <https://mails.dpdk.org/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://mails.dpdk.org/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <https://mails.dpdk.org/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
Errors-To: dev-bounces@dpdk.org

On Wed, Jan 4, 2023 at 6:19=E2=80=AFAM Nipun Gupta <nipun.gupta@amd.com> wr=
ote:
> 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>
Reviewed-by: Anatoly Burakov <anatoly.burakov@intel.com>


Applied, thanks.


--=20
David Marchand