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 3FB70A054F;
	Mon, 15 Feb 2021 09:37:44 +0100 (CET)
Received: from [217.70.189.124] (localhost [127.0.0.1])
	by mails.dpdk.org (Postfix) with ESMTP id B1B0B1606E3;
	Mon, 15 Feb 2021 09:37:43 +0100 (CET)
Received: from shelob.oktetlabs.ru (shelob.oktetlabs.ru [91.220.146.113])
 by mails.dpdk.org (Postfix) with ESMTP id D305840FDF
 for <dev@dpdk.org>; Mon, 15 Feb 2021 09:37:42 +0100 (CET)
Received: from [192.168.38.17] (aros.oktetlabs.ru [192.168.38.17])
 (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits)
 key-exchange X25519 server-signature RSA-PSS (2048 bits))
 (No client certificate requested)
 by shelob.oktetlabs.ru (Postfix) with ESMTPSA id 5A2D87F504;
 Mon, 15 Feb 2021 11:37:42 +0300 (MSK)
DKIM-Filter: OpenDKIM Filter v2.11.0 shelob.oktetlabs.ru 5A2D87F504
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=oktetlabs.ru;
 s=default; t=1613378262;
 bh=rXNhGOOGfTCKcXFc3pgrHEpQ+CgvMm4juGOgdV1hX3M=;
 h=Subject:To:Cc:References:From:Date:In-Reply-To;
 b=o2E1I9xRsbFsBBElZ8uZzczgd4C4gn9ekS1Ny+aOJJUSvkgZPrqB3DTs8HfnnDEhQ
 eZQZTo8M9CXDhJf7a/k2CrNDXkJGWFgOhkbmlSgnvYdYDjtp4gpXefBtj1EW/gpPoD
 yhBFJrwJcrI89mHhhZF+TmRRBUSd0kQpKuK//RWw=
To: Xueming Li <xuemingl@nvidia.com>
Cc: dev@dpdk.org, Viacheslav Ovsiienko <viacheslavo@nvidia.com>,
 Asaf Penso <asafp@nvidia.com>, Bruce Richardson
 <bruce.richardson@intel.com>, Thomas Monjalon <thomas@monjalon.net>,
 Ferruh Yigit <ferruh.yigit@intel.com>
References: <1613272907-22563-1-git-send-email-xuemingl@nvidia.com>
 <1613272907-22563-7-git-send-email-xuemingl@nvidia.com>
From: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Organization: OKTET Labs
Message-ID: <7deaf52b-5b0f-4edf-cf61-47ba1af1fa50@oktetlabs.ru>
Date: Mon, 15 Feb 2021 11:37:42 +0300
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101
 Thunderbird/78.7.1
MIME-Version: 1.0
In-Reply-To: <1613272907-22563-7-git-send-email-xuemingl@nvidia.com>
Content-Type: text/plain; charset=utf-8
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Subject: Re: [dpdk-dev] [PATCH v6 6/9] ethdev: support multi-host in
 representor
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
Sender: "dev" <dev-bounces@dpdk.org>

On 2/14/21 6:21 AM, Xueming Li wrote:
> The NIC can have multiple PCIe links and can be attached to the multiple
> hosts, for example the same single NIC can be shared for multiple server
> units in the rack. On each PCIe link NIC can provide multiple PFs and
> VFs/SFs based on these ones. To provide the unambiguous identification
> of the PCIe function the controller index is added. The full representor
> identifier consists of three indices - controller index, PF index, and
> VF or SF index (if any).
> 
> This patch introduces controller index to ethdev representor syntax,
> examples:
> 
> [[c#]pf#]vf#: VF port representor/s, example: pf0vf1
> [[c#]pf#]sf#: SF port representor/s, example: c1pf1sf[0-3]
> 
> c# is controller(host) ID/range in case of multi-host, optional.
> 
> For user application (e.g. OVS), PMD is responsible to interpret and
> locate representor device based on controller ID, PF ID and VF/SF ID in
> representor syntax.
> 
> Signed-off-by: Xueming Li <xuemingl@nvidia.com>
> Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
> Acked-by: Thomas Monjalon <thomas@monjalon.net>

Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>