From: Jiri Pirko <jiri@resnulli.us>
To: Sridhar Samudrala <sridhar.samudrala@intel.com>
Cc: mst@redhat.com, stephen@networkplumber.org, davem@davemloft.net,
netdev@vger.kernel.org,
virtualization@lists.linux-foundation.org,
virtio-dev@lists.oasis-open.org, jesse.brandeburg@intel.com,
alexander.h.duyck@intel.com, kubakici@wp.pl, jasowang@redhat.com,
loseweigh@gmail.com, aaron.f.brown@intel.com,
anjali.singhai@intel.com
Subject: Re: [PATCH net-next v11 3/5] net: Introduce net_failover driver
Date: Tue, 22 May 2018 10:59:40 +0200 [thread overview]
Message-ID: <20180522085940.GD2149@nanopsycho> (raw)
In-Reply-To: <1526954781-35359-4-git-send-email-sridhar.samudrala@intel.com>
Tue, May 22, 2018 at 04:06:19AM CEST, sridhar.samudrala@intel.com wrote:
>The net_failover driver provides an automated failover mechanism via APIs
>to create and destroy a failover master netdev and mananges a primary and
>standby slave netdevs that get registered via the generic failover
>infrastructure.
>
>The failover netdev acts a master device and controls 2 slave devices. The
>original paravirtual interface gets registered as 'standby' slave netdev and
>a passthru/vf device with the same MAC gets registered as 'primary' slave
>netdev. Both 'standby' and 'failover' netdevs are associated with the same
>'pci' device. The user accesses the network interface via 'failover' netdev.
>The 'failover' netdev chooses 'primary' netdev as default for transmits when
>it is available with link up and running.
>
>This can be used by paravirtual drivers to enable an alternate low latency
>datapath. It also enables hypervisor controlled live migration of a VM with
>direct attached VF by failing over to the paravirtual datapath when the VF
>is unplugged.
>
>Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
[...]
>+
>+The net_failover driver provides an automated failover mechanism via APIs
>+to create and destroy a failover master netdev and mananges a primary and
s/mananges/manages/
next prev parent reply other threads:[~2018-05-22 8:59 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-22 2:06 [PATCH net-next v11 0/5] Enable virtio_net to act as a standby for a passthru device Sridhar Samudrala
2018-05-22 2:06 ` [PATCH net-next v11 1/5] net: Introduce generic failover module Sridhar Samudrala
2018-05-22 2:06 ` [PATCH net-next v11 2/5] netvsc: refactor notifier/event handling code to use the failover framework Sridhar Samudrala
2018-05-22 9:06 ` Jiri Pirko
2018-05-22 9:08 ` Jiri Pirko
2018-05-22 13:12 ` Michael S. Tsirkin
2018-05-22 13:14 ` Jiri Pirko
2018-05-22 13:17 ` Michael S. Tsirkin
2018-05-22 13:26 ` Jiri Pirko
2018-05-22 13:39 ` Michael S. Tsirkin
2018-05-22 15:13 ` Jiri Pirko
2018-05-22 15:32 ` Michael S. Tsirkin
2018-05-22 15:45 ` Jiri Pirko
2018-05-22 16:52 ` Michael S. Tsirkin
2018-05-22 17:38 ` Jiri Pirko
2018-05-22 19:54 ` Michael S. Tsirkin
2018-05-22 15:28 ` Samudrala, Sridhar
2018-05-22 15:36 ` Shepherd request (P83): Multipath TCP: Present Use Cases and an Upstream Future Jiri Pirko
2018-05-22 15:46 ` Michael S. Tsirkin
2018-05-22 16:12 ` [PATCH net-next v11 2/5] netvsc: refactor notifier/event handling code to use the failover framework Jiri Pirko
2018-05-22 20:54 ` Samudrala, Sridhar
2018-05-23 6:27 ` Jiri Pirko
2018-05-23 16:16 ` Samudrala, Sridhar
2018-05-22 2:06 ` [PATCH net-next v11 3/5] net: Introduce net_failover driver Sridhar Samudrala
2018-05-22 8:59 ` Jiri Pirko [this message]
2018-05-22 2:06 ` [PATCH net-next v11 4/5] virtio_net: Introduce VIRTIO_NET_F_STANDBY feature bit Sridhar Samudrala
2018-05-22 2:06 ` [PATCH net-next v11 5/5] virtio_net: Extend virtio to use VF datapath when available Sridhar Samudrala
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