From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gaetan Rivet Subject: [PATCH v2 00/13] introduce fail-safe PMD Date: Wed, 8 Mar 2017 16:15:33 +0100 Message-ID: References: Cc: Thomas Monjalon , Adrien Mazarguil To: dev@dpdk.org Return-path: Received: from mail-wr0-f181.google.com (mail-wr0-f181.google.com [209.85.128.181]) by dpdk.org (Postfix) with ESMTP id 1274D3DC for ; Wed, 8 Mar 2017 16:16:03 +0100 (CET) Received: by mail-wr0-f181.google.com with SMTP id u48so25597881wrc.0 for ; Wed, 08 Mar 2017 07:16:03 -0800 (PST) In-Reply-To: List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 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 series depends on the series [PATCH 0/4] clarify eth_dev state management [PATCH 0/5] add device removal event v1 --> v2: - Wrote documentation - Fixed commit logs, signed-off-by - Added LSC event support - A few minor fixes Gaetan Rivet (13): ethdev: save VLAN filter setting ethdev: add flow API rule copy function ethdev: add deferred intermediate device state pci: expose device detach routine pci: expose parse and probe routines 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 offload capabilities net/failsafe: add fast burst functions net/failsafe: support device removal net/failsafe: support link status change event MAINTAINERS | 5 + app/test-pmd/config.c | 263 ++----- app/test-pmd/testpmd.h | 5 +- config/common_base | 5 + doc/guides/nics/fail_safe.rst | 182 +++++ doc/guides/nics/features/failsafe.ini | 32 + doc/guides/nics/index.rst | 1 + drivers/net/Makefile | 1 + drivers/net/failsafe/Makefile | 74 ++ drivers/net/failsafe/failsafe.c | 299 ++++++++ drivers/net/failsafe/failsafe_args.c | 503 ++++++++++++++ drivers/net/failsafe/failsafe_eal.c | 300 ++++++++ drivers/net/failsafe/failsafe_ether.c | 394 +++++++++++ drivers/net/failsafe/failsafe_flow.c | 230 +++++++ drivers/net/failsafe/failsafe_ops.c | 867 ++++++++++++++++++++++++ drivers/net/failsafe/failsafe_private.h | 329 +++++++++ drivers/net/failsafe/failsafe_rxtx.c | 184 +++++ lib/librte_eal/bsdapp/eal/rte_eal_version.map | 6 + lib/librte_eal/common/eal_common_pci.c | 16 +- lib/librte_eal/common/include/rte_pci.h | 40 ++ lib/librte_eal/linuxapp/eal/eal_pci.c | 39 +- lib/librte_eal/linuxapp/eal/rte_eal_version.map | 7 + lib/librte_ether/rte_ethdev.c | 22 +- lib/librte_ether/rte_ethdev.h | 11 + lib/librte_ether/rte_flow.c | 283 ++++++++ lib/librte_ether/rte_flow.h | 59 ++ mk/rte.app.mk | 1 + 27 files changed, 3910 insertions(+), 248 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 -- 2.1.4