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 05EDD45A12; Mon, 23 Sep 2024 21:47:05 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 90467402B4; Mon, 23 Sep 2024 21:47:04 +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 8350F4027C for ; Mon, 23 Sep 2024 21:47:03 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1727120823; 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:autocrypt:autocrypt; bh=Nnl6CMScHxsIcLirwUvBvBb6haHZU5dut5rzoXlQbag=; b=BjbdR+TfrFr60Aa3LQWLaVaQsFtLpv4MVP8P/mwm5xIc2xuyec1I6nlTPxHLWa7UqEelxm E2LlGHhV07wTKu/EW8JXDqg+sU7JpKyOf/Utag/zJG4khOaBlVlNjl+WQroA3pdwLojyH9 ocOWhphsvBshkQmGxts/4lNcn5tKIOA= Received: from mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-638-p5ppKN03MW2uQF3aJ-HGxg-1; Mon, 23 Sep 2024 15:47:00 -0400 X-MC-Unique: p5ppKN03MW2uQF3aJ-HGxg-1 Received: from mx-prod-int-02.mail-002.prod.us-west-2.aws.redhat.com (unknown [10.30.177.15]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 44583190A355; Mon, 23 Sep 2024 19:46:59 +0000 (UTC) Received: from [10.39.208.8] (unknown [10.39.208.8]) by mx-prod-int-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id A124A1956094; Mon, 23 Sep 2024 19:46:57 +0000 (UTC) Message-ID: <8c10dcee-cb73-4fb0-94ca-624456e8ace4@redhat.com> Date: Mon, 23 Sep 2024 21:46:52 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 1/2] vhost: add logging mechanism for reconnection To: David Marchand Cc: dev@dpdk.org, chenbox@nvidia.com References: <20240920150921.994434-1-maxime.coquelin@redhat.com> <20240920150921.994434-2-maxime.coquelin@redhat.com> From: Maxime Coquelin Autocrypt: addr=maxime.coquelin@redhat.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit 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 On 9/23/24 17:42, David Marchand wrote: > On Fri, Sep 20, 2024 at 11:09 AM Maxime Coquelin > wrote: >> >> This patch introduces a way for backend to keep track >> of the needed information to be able to reconnect without >> frontend cooperation. >> >> It will be used for VDUSE, which does not provide interface >> for the backend to save and later recover local virtqueues >> metadata needed to reconnect. >> >> Vhost-user support could also be added for improved packed >> ring reconnection support. >> >> Signed-off-by: Maxime Coquelin > > vq->last_avail_idx gets updated in other places and I suspect we are > missing some calls to vhost_virtqueue_reconnect_log_split/packed. > I spotted: > - lib/vhost/vhost.c: rte_vhost_set_vring_base() > - lib/vhost/vhost_user.c: translate_ring_addresses(), > vhost_user_set_vring_base(). > > The rest lgtm. > > Thanks, I patched the missing avail index updates you identified. And also added your R-by as asked off-list. Maxime