From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f182.google.com (mail-wr0-f182.google.com [209.85.128.182]) by dpdk.org (Postfix) with ESMTP id 3E3372FDD for ; Tue, 18 Jul 2017 14:48:38 +0200 (CEST) Received: by mail-wr0-f182.google.com with SMTP id 12so27966708wrb.1 for ; Tue, 18 Jul 2017 05:48:38 -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=xxK3JPGJ+NbUz98wLya7ykdyPErqeoIthvejpaffAsI=; b=ckPM7SbITvwRGG4wk4V63wbnciPvtJT/p78BEOncWmH06wyDKXIHi/BDASLcwuiYg8 uytaORiItWAkDxpNA++EhT/4FPld0xylzrvl070/YIQX+ojU6BlC6IwVDUxnq0SejFeM Owx05tm1hu4bkY1oxgr8tZnUYRJesgtF3HXrse6/j9N5rpOLxCuhRld5k3YPaHio7/Tc T8cJ1F+z9N7CtC/dh1GqsIRPwwXl1xW2dJx7xhnG6T62iwJwvG3XuMgSyFVm7oRyBhez mNTCcOL0vIgUDGA3Hq6s1Vh02mpMIJ88mRCafXZ5mLiXDZoDOBHxT6Vk0MgXYJsbAQIa ZZgQ== 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=xxK3JPGJ+NbUz98wLya7ykdyPErqeoIthvejpaffAsI=; b=nJqk9hbkzj63K/ZtVdpdrvmM1eq9EorLjGAfcOW85Kyi/X6OxX2fTnu0YJOua/UpeK lJ8+3+wH1uIydwMpZ4E07tBS1HJxK3J/RjD18rZ7l6qPfXTxRFh9hRrBtH/8bu8Uth6x BophSqZ1zuISl+uWJ8LI/VNR75KUJO1SHQGhDskTSHn4GLGEai1O5ZEr9wlJyOfn6uzG f9uBWkTnJE6JBWovJV3B6uhGs/BXEXZSs83geZr7ciFPwJ9Qxk7JtbMrHLMcxv8jZy2h kKWDCpKNjrvgIoB1307lo46kh23wq0j6zRWM7yAOPez2fVpSrIOTJ9t7hhZRDyhtz37T O9IQ== X-Gm-Message-State: AIVw112Tbg6B+j2eB1BkVOd2jK3L6m9m4wYEQjiQ5IjgOVJeqaaq0cMM aSR5YaFAwP4ckK6MZYI= X-Received: by 10.28.66.67 with SMTP id p64mr1699494wma.93.1500382117892; Tue, 18 Jul 2017 05:48:37 -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 j8sm1033960wrj.10.2017.07.18.05.48.36 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 18 Jul 2017 05:48:36 -0700 (PDT) From: Gaetan Rivet To: dev@dpdk.org Cc: Gaetan Rivet Date: Tue, 18 Jul 2017 14:48:11 +0200 Message-Id: X-Mailer: git-send-email 2.1.4 In-Reply-To: References: Subject: [dpdk-dev] [PATCH v11 00/11] introduce fail-safe PMD 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: Tue, 18 Jul 2017 12:48:39 -0000 This PMD intercepts and manages Ethernet device removal events issued by slave PMDs and re-initializes them transparently when brought back so that existing applications do not need to be modified to benefit from true hot-plugging support. The stacked PMD approach shares many similarities with the bonding PMD but with a different purpose. While bonding provides the ability to group several links into a single logical device for enhanced throughput and supports fail-over at link level, this one manages the sudden disappearance of the underlying device; it guarantees applications face a valid device in working order at all times. Each fail-safe instance is configured to run atop one or several devices, with one defined as the preferred device. Hot-plug events are handled on all of them, and Tx is always directed to the preferred device if present or to the next available failover device (Rx is always performed on all devices for simplicity). Moreover, the configured slaves (preferred or failover) do not need to be present at initialization time and may appear later. Slaves configuration is continuously synchronized with that of the virtual device, which exposes their common set of capabilities to the application. Failure to apply the current configuration state to a slave for any reason simply reschedules its initialization. This patchset depends on: [dpdk-dev] [PATCH v4 0/8] fix hotplug API http://dpdk.org/ml/archives/dev/2017-July/071340.html v1 --> v2: - Wrote documentation - Fixed commit logs, signed-off-by - Added LSC event support - A few minor fixes v2 --> v3: - Numerous bug fixes. - Complete sub-EAL rework to follow new bus API. - burst protection on sub removal. - more flexible sub definition. - flow isolated mode support. v3 --> v4: - Split back commits net/failsafe: add fast burst functions net/failsafe: support device removal That were squashed by error during a rebase - Fix segfault on port plugin - Fix isolate mode support for MLX4 ports plugin v4 --> v5: - Follow new plug / unplug API. v5 --> v6: - Follow new hotplug API. - Improve usability of hotplug API. - Fix rte_dev hotplug API implementation. - Introduce rte_eal_devargs_rmv API as EXPERIMENTAL. - Use it to clean up resources on hotplug_remove. - Fix hotplug implementation and support un pci bus. The scan was not idempotent, nor clean. Neither were the device fields. - Implement plug operation for vdev bus. This is needed for hotplug support and to make the EAL independent from vdev-specific API. - Remove useless parameters from plug / unplug API. This patchset is fairly big and complex. The hotplug API has been rushed and has never been tested outside of the special case of vdev bus. These evolutions are proposed alongside this PMD as only this PMD allows to test this API at the moment, and without those evolutions this PMD cannot be used. v6 --> v7 - Split the series in three, with vlan filter configuration store standing alone Hotplug API fixes separated Fail-safe PMD on its own. These changes should ease integration. v7 --> v8 - Fix usage examples in documentation. - Use rte_eth_dev_allocated when relevant. v8 --> v9 - Use calloc instead of rte_realloc for command line parsing. - Include errno only when necessary. v9 --> v10 - Fix rte_flow description double-free issue. Thanks Raslan for finding the issue :) - Use RTE_ASSERT instead of assert. Integrate the debug log of the fail-safe to RTE_LOG_DEBUG macro as well, allowing dynamic log levels. - Remove devices post-state-sync during slave upkeep, to avoid a useless early probe attempt. v10 --> v11 - Added Glossary in documentation. - Fixed issues oulined in [1]. - Removed Rx offload advertizement in feature matrix. [1]: http://dpdk.org/ml/archives/dev/2017-July/071406.html Gaetan Rivet (11): ethdev: add deferred intermediate device state ethdev: count devices consistently net/failsafe: add fail-safe PMD net/failsafe: add plug-in support net/failsafe: add flexible device definition net/failsafe: support flow API net/failsafe: support Rx offload capabilities net/failsafe: add fast burst functions net/failsafe: support device removal net/failsafe: support link status change event net/failsafe: support flow API isolation mode MAINTAINERS | 5 + config/common_base | 5 + doc/guides/nics/fail_safe.rst | 221 ++++++ doc/guides/nics/features/failsafe.ini | 26 + doc/guides/nics/index.rst | 1 + drivers/net/Makefile | 2 + drivers/net/failsafe/Makefile | 60 ++ drivers/net/failsafe/failsafe.c | 299 ++++++++ drivers/net/failsafe/failsafe_args.c | 468 ++++++++++++ drivers/net/failsafe/failsafe_eal.c | 118 +++ drivers/net/failsafe/failsafe_ether.c | 437 +++++++++++ drivers/net/failsafe/failsafe_flow.c | 244 ++++++ drivers/net/failsafe/failsafe_ops.c | 867 ++++++++++++++++++++++ drivers/net/failsafe/failsafe_private.h | 359 +++++++++ drivers/net/failsafe/failsafe_rxtx.c | 203 +++++ drivers/net/failsafe/rte_pmd_failsafe_version.map | 4 + lib/librte_ether/rte_ethdev.c | 19 +- lib/librte_ether/rte_ethdev.h | 14 +- mk/rte.app.mk | 1 + 19 files changed, 3338 insertions(+), 15 deletions(-) create mode 100644 doc/guides/nics/fail_safe.rst create mode 100644 doc/guides/nics/features/failsafe.ini create mode 100644 drivers/net/failsafe/Makefile create mode 100644 drivers/net/failsafe/failsafe.c create mode 100644 drivers/net/failsafe/failsafe_args.c create mode 100644 drivers/net/failsafe/failsafe_eal.c create mode 100644 drivers/net/failsafe/failsafe_ether.c create mode 100644 drivers/net/failsafe/failsafe_flow.c create mode 100644 drivers/net/failsafe/failsafe_ops.c create mode 100644 drivers/net/failsafe/failsafe_private.h create mode 100644 drivers/net/failsafe/failsafe_rxtx.c create mode 100644 drivers/net/failsafe/rte_pmd_failsafe_version.map -- 2.1.4