netdev - Re: [PATCH 00/10] Add HA and LAG support to mlx4 RoCE and SRIOV services

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Message-Id: <20150204.161450.1399793400707389786.davem@davemloft.net>
Date:	Wed, 04 Feb 2015 16:14:50 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	ogerlitz@...lanox.com
Cc:	netdev@...r.kernel.org, roland@...nel.org, amirv@...lanox.com,
	talal@...lanox.com
Subject: Re: [PATCH 00/10] Add HA and LAG support to mlx4 RoCE and SRIOV
 services

From: Or Gerlitz <ogerlitz@...lanox.com>
Date: Tue,  3 Feb 2015 16:48:28 +0200

> This series takes advanges of bonding mlx4 Ethernet devices to support 
> a model of High-Availability and Link Aggregation for more environments.
> 
> The mlx4 driver reacts on netdev events generated by bonding when
> slave state changes happen by programming a HW V2P (Virt-to-Phys) 
> port table. Bonding was extended to expose these state changes 
> through netdev events. 
> 
> When an mlx4 interface such as the mlx4 IB/RoCE driver is subject to 
> this policy, QPs are created over virtual ports which are mapped 
> to one of the two physical ports. When a failure happens, the 
> re-programming of the V2P table allows traffic to keep flowing. 
> 
> The mlx4 Ethernet driver interfaces are not subject to this
> policy and act as usual.
> 
> A 2nd use-case for this model would be to add HA and Link Aggregation
> support to single ported mlx4 Ethernet VFs. In this case, the PF Ethernet
> intrfaces are bonded, all the VFs see single port devices (which is
> supported already today), and VF QPs are subject to V2P. 

Series applied, thanks.
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