From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f51.google.com (mail-wm0-f51.google.com [74.125.82.51]) by dpdk.org (Postfix) with ESMTP id 854E17CA3 for ; Thu, 1 Jun 2017 12:09:10 +0200 (CEST) Received: by mail-wm0-f51.google.com with SMTP id d127so53519940wmf.0 for ; Thu, 01 Jun 2017 03:09:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=6wind-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=dBeR0X1UpXaVG59U/++TzJs9F0U5Nwv5oqSgq7sgFpI=; b=nLpPoHRe6NJMRd/ei+xhM1b1nOPHa877hPfKewIekmjdMgNT3xDykYrvtFv6WF5n0w DTSLdlHiRKkxkMEBo0TfiWN/vpA05J7/5ImimzRbNSWVfo8znr1jDqtnp+qIpVctbtkL Sr+2IfU4O7B0drY0oTe7xJio/bggIUieQ3CfWlLlq1v5Ttg+rVDE/fwoFpy1+NGKJcMR Fa6lnL7pGtpzNGzY70JYscBsdaxsvTK0fPr1ariR8NMXtUnClV2m5J3+eFWWp/wi2+Ic D6XWGk36kwFo7o6NrhpZJM2QHeFFEZHq+2sRFiL9Yqk1sDcgd6A60wE7yvfISVQUceWQ fsdA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=dBeR0X1UpXaVG59U/++TzJs9F0U5Nwv5oqSgq7sgFpI=; b=ETlPIFZnbG5noOhoobvOwJLMbieSiiBS0APon3CVLifMX/7fctr4pYDR5QNLfa9abj WWFhP9JUDzBaaX+xwMHBWNIC3bc8P0Kgt4aLMlNkZwDhkH3h7Y9IYbvpL6Xgw9SAv9o3 wdoDSAgRf0+3wQxm49SrIpQLMrt1gqXN4ASXSUbvGHSABP7eIBOWfBHCtfLJd4aK1KMB jKWQhn8EWnmMJG9+oWMl1+IbU61/oEnogz12/vg1JXzL7MDtSoiyFTAR6ukWEQJRysUG vii2thKEwMe2TjXiAT5NSFkkSxeOn8GAHFsFtuLt5CY3Lcd+ldA/+bQ1NboSuyBndy1u MoyQ== X-Gm-Message-State: AODbwcCavUQ/LF+GYk198u3lcG4LvJivqZSVZrFSsLM8U2hvg18Tu2aV 3b+A+Z8SjnYylOGAKuo= X-Received: by 10.28.17.203 with SMTP id 194mr1140097wmr.100.1496311748942; Thu, 01 Jun 2017 03:09:08 -0700 (PDT) Received: from bidouze.dev.6wind.com (host.78.145.23.62.rev.coltfrance.com. [62.23.145.78]) by smtp.gmail.com with ESMTPSA id r10sm24305457wmd.9.2017.06.01.03.09.07 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 01 Jun 2017 03:09:08 -0700 (PDT) From: Gaetan Rivet To: dev@dpdk.org Cc: Gaetan Rivet , Jan Blunck , Stephen Hemminger , Maxime Coquelin , Jerin Jacob , David Marchand Date: Thu, 1 Jun 2017 12:08:50 +0200 Message-Id: X-Mailer: git-send-email 2.1.4 In-Reply-To: References: Subject: [dpdk-dev] [PATCH v3 0/9] rte_bus parse API X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Jun 2017 10:09:10 -0000 Following the evolutions announced in [1], here is the first part of the rte_devargs rework planned for 17.08. The rationale has been partially explained in [2]. This first part covers the introduction of the necessary facilities in rte_bus to allow for generic device parsing. This API is implemented for the virtual and PCI buses. Additionally, this rte_bus evolution is being used within rte_devargs to characterize a device type by its bus. This work is the first of two parts to reduce the dependency of the EAL upon specific bus implementations. Two public functions are added to rte_bus to help bus recognition: - rte_bus_from_name - rte_bus_from_dev These functions are made public because the bus handle within devargs becomes the generic device type. Recognizing device types is useful for buses and PMDs alike. The modified rte_devargs parsing allows declaring on the EAL command line explicit buses to handle a device. The format is as follow: --vdev="virtual:net_ring0" --vdev="net_tap0,iface=tap0" -w PCI:00:02.0 -w 00:03.0 This explicit bus designation is optional; no evolution is currently forced on users to migrate to this new format. The separating character is arbitrary and can be any character illegal within a bus name. Subsequently, what is allowed within a bus name has been formally defined and is now enforced. [1]: http://dpdk.org/ml/archives/dev/2017-May/065634.html [2]: http://dpdk.org/ml/archives/dev/2017-May/065670.html This patchset depends on: bus: attach / detach API http://dpdk.org/ml/archives/dev/2017-May/066330.html http://dpdk.org/dev/patchwork/patch/24489/ v1 -> v2: * fix PCI parse implementation v2 --> v3 * Rebase the series on the new plug / unplug API Gaetan Rivet (9): bus: fix bus name registration bus: verify bus name on registration bus: introduce parsing functionality vdev: implement parse bus operation pci: implement parse bus operation bus: add helper to find bus from a name bus: add helper to find a bus from a device name vdev: expose bus name devargs: parse bus info lib/librte_eal/bsdapp/eal/rte_eal_version.map | 8 +++ lib/librte_eal/common/eal_common_bus.c | 47 +++++++++++++++++ lib/librte_eal/common/eal_common_devargs.c | 17 +++++- lib/librte_eal/common/eal_common_pci.c | 19 +++++++ lib/librte_eal/common/eal_common_vdev.c | 70 ++++++++++++++----------- lib/librte_eal/common/eal_private.h | 16 ++++++ lib/librte_eal/common/include/rte_bus.h | 49 ++++++++++++++++- lib/librte_eal/common/include/rte_devargs.h | 3 ++ lib/librte_eal/common/include/rte_vdev.h | 2 + lib/librte_eal/linuxapp/eal/rte_eal_version.map | 8 +++ 10 files changed, 205 insertions(+), 34 deletions(-) -- 2.1.4