From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <olivier.matz@6wind.com> Received: from mail-wr0-f178.google.com (mail-wr0-f178.google.com [209.85.128.178]) by dpdk.org (Postfix) with ESMTP id B7EF27CBE for <dev@dpdk.org>; Mon, 10 Jul 2017 10:00:21 +0200 (CEST) Received: by mail-wr0-f178.google.com with SMTP id k67so126863373wrc.2 for <dev@dpdk.org>; Mon, 10 Jul 2017 01:00:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=6wind-com.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=jfnjd6YPfVTfqopYhYv5dnIr0a9x+GH8BeZ0Y5pfjbY=; b=b0UFKeP7cYt1CSPk9MQIkCK2Bo7O5DOSKg6Gx8XMiQckvdAEGaeGOdCUcyd+fUat3j +9qlXXSBmSd2KG3V91LMICrd6dKsuH21qapCdqalECQPSysWEdwM4b06h69grWvB6+tc JcUPxSa4xtoz+ku3QUX7ftrHJelw48FXgwLFTQVI3MKHMWlXNSppDdHuaC2mchmt8R15 YJ1/Bw4VrLMsd93SWjfwiCvgA+U7dOvKciC/2GZc6k1Q9NGrJ3wHd75RjsmzsEgVxK8v pkOzR8DgaL8nU/DurGU5w3AVRxCZrnAH1reOXp5ec0VzvodrOoHo4lQbgRij8qIhXJHp RmFw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=jfnjd6YPfVTfqopYhYv5dnIr0a9x+GH8BeZ0Y5pfjbY=; b=o4Sg7dnMSjDCxLNYhJ41gb9FeFrIK0c/XZhBOKgRO1qO146R6QaxwHTFZPhQ7Pvctj JkwCR09AbvmmkH8NBPcSyXzYFqQdGt7gIWSgwn88ni33iVgTIIUT7Wg9E/hXwAvuStFg rij5whV38Uhk65q++egdgXpR7BNY4pbsBaIe8Bjard10/EREju7auijBFEhlXqMnNEYx 5x5Bc/E4CS0BVLmRj4NqxWhWYmHBroQ9iR+xQzseOkADpTgGmD5Vi4qBRHFaG/FI1Vok HKY84Vr3/3LhcOq8T5kosQX6eFiwaUoAMYCcwrjEogJLhzqqpozx1vEcKMKEQDc0gH3U qa3w== X-Gm-Message-State: AIVw112ll3Co4iJYcA8XZ2BzQwe9Fe1PyVyWfU4Tk69eimwYhr5Rnbzl 7tZMxAInzEourbDr X-Received: by 10.223.138.252 with SMTP id z57mr6139902wrz.66.1499673621376; Mon, 10 Jul 2017 01:00:21 -0700 (PDT) Received: from platinum (2a01cb0c03c651000226b0fffeed02fc.ipv6.abo.wanadoo.fr. [2a01:cb0c:3c6:5100:226:b0ff:feed:2fc]) by smtp.gmail.com with ESMTPSA id b205sm5028682wmb.14.2017.07.10.01.00.21 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 10 Jul 2017 01:00:21 -0700 (PDT) Date: Mon, 10 Jul 2017 10:00:18 +0200 From: Olivier Matz <olivier.matz@6wind.com> To: "Wang, Zhihong" <zhihong.wang@intel.com> Cc: Yuanhan Liu <yuanhan.liu@linux.intel.com>, "dev@dpdk.org" <dev@dpdk.org>, "Ananyev, Konstantin" <konstantin.ananyev@intel.com>, "Richardson, Bruce" <bruce.richardson@intel.com>, "mb@smartsharesystems.com" <mb@smartsharesystems.com>, "Chilikin, Andrey" <andrey.chilikin@intel.com>, "jblunck@infradead.org" <jblunck@infradead.org>, "nelio.laranjeiro@6wind.com" <nelio.laranjeiro@6wind.com>, "arybchenko@solarflare.com" <arybchenko@solarflare.com>, "thomas.monjalon@6wind.com" <thomas.monjalon@6wind.com>, "jerin.jacob@caviumnetworks.com" <jerin.jacob@caviumnetworks.com> Message-ID: <20170710100018.403b82ec@platinum> In-Reply-To: <8F6C2BD409508844A0EFC19955BE0941512B02B2@SHSMSX103.ccr.corp.intel.com> References: <1488966121-22853-1-git-send-email-olivier.matz@6wind.com> <20170404162807.20157-1-olivier.matz@6wind.com> <20170404162807.20157-7-olivier.matz@6wind.com> <20170406054523.GP18844@yliu-dev.sh.intel.com> <20170418150304.58d2c4a1@glumotte.dev.6wind.com> <8F6C2BD409508844A0EFC19955BE0941512B02B2@SHSMSX103.ccr.corp.intel.com> X-Mailer: Claws Mail 3.14.1 (GTK+ 2.24.31; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH v2 6/8] mbuf: use 2 bytes for port and nb segments X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions <dev.dpdk.org> List-Unsubscribe: <http://dpdk.org/ml/options/dev>, <mailto:dev-request@dpdk.org?subject=unsubscribe> List-Archive: <http://dpdk.org/ml/archives/dev/> List-Post: <mailto:dev@dpdk.org> List-Help: <mailto:dev-request@dpdk.org?subject=help> List-Subscribe: <http://dpdk.org/ml/listinfo/dev>, <mailto:dev-request@dpdk.org?subject=subscribe> X-List-Received-Date: Mon, 10 Jul 2017 08:00:22 -0000 Hi, On Tue, 4 Jul 2017 07:54:23 +0000, "Wang, Zhihong" <zhihong.wang@intel.com> wrote: > > -----Original Message----- > > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Olivier MATZ > > Sent: Tuesday, April 18, 2017 9:03 PM > > To: Yuanhan Liu <yuanhan.liu@linux.intel.com> > > Cc: dev@dpdk.org; Ananyev, Konstantin <konstantin.ananyev@intel.com>; > > Richardson, Bruce <bruce.richardson@intel.com>; > > mb@smartsharesystems.com; Chilikin, Andrey <andrey.chilikin@intel.com>; > > jblunck@infradead.org; nelio.laranjeiro@6wind.com; > > arybchenko@solarflare.com; thomas.monjalon@6wind.com; > > jerin.jacob@caviumnetworks.com > > Subject: Re: [dpdk-dev] [PATCH v2 6/8] mbuf: use 2 bytes for port and nb > > segments > > > > Hi Yuanhan, > > > > On Thu, 6 Apr 2017 13:45:23 +0800, Yuanhan Liu > > <yuanhan.liu@linux.intel.com> wrote: > > > Hi Olivier, > > > > > > On Tue, Apr 04, 2017 at 06:28:05PM +0200, Olivier Matz wrote: > > > > Change the size of m->port and m->nb_segs to 16 bits. > > > > > > But all the ethdev APIs are still using 8 bits. 16 bits won't really > > > take effect without updating those APIs. Any plans? > > > > > > --yliu > > > > Yes, there is some work in ethdev, drivers and in example apps to > > make the change effective. I think we could define a specific type for > > a port number, maybe rte_eth_port_num_t. Using this type could be a > > first step (for 17.08) before switching to 16 bits (17.11?). > > > > I'll do the change and send a rfc. > > Ping ;) Is this still in your plan? > Sorry, I don't think I will have time to work on this issue in the coming weeks. If you plan to do it, I will be happy to help with reviews and comments. As I said in a previous message, I think a good first step would be to introduce a typedef for the port number: rte_eth_port_num_t. It can still be uint8_t for now, and can be switched to 16 bits in one step when everyone uses this new type. Olivier