From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 455C242B90; Wed, 24 May 2023 21:15:01 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id CB6F240156; Wed, 24 May 2023 21:15:00 +0200 (CEST) Received: from wout1-smtp.messagingengine.com (wout1-smtp.messagingengine.com [64.147.123.24]) by mails.dpdk.org (Postfix) with ESMTP id 6331D400EF for ; Wed, 24 May 2023 21:14:59 +0200 (CEST) Received: from compute2.internal (compute2.nyi.internal [10.202.2.46]) by mailout.west.internal (Postfix) with ESMTP id 0B0533200921; Wed, 24 May 2023 15:14:55 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute2.internal (MEProxy); Wed, 24 May 2023 15:14:56 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=monjalon.net; h= cc:cc:content-transfer-encoding:content-type:content-type:date :date:from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:sender:subject:subject:to:to; s=fm1; t= 1684955695; x=1685042095; bh=9qXDRa5lXdp7nH+ElND9KYxsdvt1uArbOVM oUi89Ek0=; b=iawFjH3z7JkRoKn4C35mgbHNXBB79oboHsDB6hXFaBoDGdufsru B526knBjdkftTNn7OdVTAr37NBhHOVptN7SaCAob02t6+YD4FAPboR3uo9ZL0ewS tglUYS5w2iUA+9h9pRWpcwMNFkHMt9uILWdBvXyueLyospHhD2NTzBEQKN7hR3kb nejDOoJDOj+EAAbbZVHlLMFrLCtb7cQs4W5QYzdUjs6xGykUVqZBG3FcmeDe+ani xjdnhnyVs/zqIpntGlNbsNzaZb5PyTZXvsIMi0o5n//2hpw6QVIkxtiFX2Zl+fCf tk+FCeKSfOilc7vLD5kASlh2i0GiUWDQyBw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:content-type:date:date:feedback-id:feedback-id :from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:sender:subject:subject:to:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm1; t= 1684955695; x=1685042095; bh=9qXDRa5lXdp7nH+ElND9KYxsdvt1uArbOVM oUi89Ek0=; b=SzxGlM+QDribnOrEFggGPN/3Z8e+6kJz1K+Y53KbBYZXNBfENv9 S1m6NrN6WdVysQCjLobS8DAMhk2w4LV+dVmaFWcPQroIQwph7F5ELCbKlO3npHHb u6ePhx88xeTqVuxAj7fjTBhGnUk5ZEONG796ATFxSBp8PsazYwODfCrJ+UniAhDM 4zFfsxA6Sc9IWSPXPloePgv29KZjqLlaeo87XuUyEJ58A4yOc4zjzzCIZIxxG5EK yVLTPb0G7f0aM6z5SbLxv5AnGZLUUkYSOSYym4lW9KSUPPiK8R5obDhNqueXyvNx fsNif6s6qbaemrxoNTMX2Xx6MSN7+k0iP4A== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvhedrfeejhedgudefvdcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpefhvfevufffkfgjfhgggfgtsehtufertddttddvnecuhfhrohhmpefvhhho mhgrshcuofhonhhjrghlohhnuceothhhohhmrghssehmohhnjhgrlhhonhdrnhgvtheqne cuggftrfgrthhtvghrnheptdejieeifeehtdffgfdvleetueeffeehueejgfeuteeftddt ieekgfekudehtdfgnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilh hfrhhomhepthhhohhmrghssehmohhnjhgrlhhonhdrnhgvth X-ME-Proxy: Feedback-ID: i47234305:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Wed, 24 May 2023 15:14:54 -0400 (EDT) From: Thomas Monjalon To: Bruce Richardson Cc: dev@dpdk.org, Kevin Laatz , "Burakov, Anatoly" Subject: Re: [PATCH] dma/idxd: add support for multi-process when using VFIO Date: Wed, 24 May 2023 21:14:52 +0200 Message-ID: <2146294.GUh0CODmnK@thomas> In-Reply-To: <1b71adcb-6e89-ddfa-a0d5-9854dbba087e@intel.com> References: <20230515162907.8456-1-bruce.richardson@intel.com> <1b71adcb-6e89-ddfa-a0d5-9854dbba087e@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org 17/05/2023 12:17, Burakov, Anatoly: > On 5/15/2023 5:29 PM, Bruce Richardson wrote: > > When using vfio-pci/uio for hardware access, we need to avoid > > reinitializing the hardware when mapping from a secondary process. > > Instead, just configure the function pointers and reuse the data > > mappings from the primary process. > > > > With the code change, update driver doc with the information that > > vfio-pci can be used for multi-process support, and explicitly state the > > limitation on multi-process support being unavailable when using idxd > > kernel driver. > > > > Signed-off-by: Bruce Richardson > > --- > > From multiprocess perspective, > > Acked-by: Anatoly Burakov Applied, thanks.