On 7/18/2017 5:08 PM, Ferruh Yigit wrote: > On 7/18/2017 1:48 PM, Gaetan Rivet wrote: >> 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 > > Series applied to dpdk-next-net/master, thanks.
Hi Gaetan, Can you please send a patch to update release notes to announce the new PMD? And can you also send a web page to list the PMD within supported NICs [1]? Thanks, ferruh [1] http://dpdk.org/doc/nics
