netdev - Re: [PATCH v4 for-next 04/12] IB/ipoib: Return IPoIB devices matching connection parameters

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Message-ID: <20150519235502.GB26634@obsidianresearch.com>
Date:	Tue, 19 May 2015 17:55:02 -0600
From:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>
To:	Haggai Eran <haggaie@...lanox.com>
Cc:	Doug Ledford <dledford@...hat.com>, linux-rdma@...r.kernel.org,
	netdev@...r.kernel.org, Liran Liss <liranl@...lanox.com>,
	Guy Shapiro <guysh@...lanox.com>,
	Shachar Raindel <raindel@...lanox.com>,
	Yotam Kenneth <yotamke@...lanox.com>
Subject: Re: [PATCH v4 for-next 04/12] IB/ipoib: Return IPoIB devices
 matching connection parameters

On Sun, May 17, 2015 at 08:51:00AM +0300, Haggai Eran wrote:
> From: Guy Shapiro <guysh@...lanox.com>
> 
> Implement the get_net_device_by_port_pkey_ip callback that returns network
> device to ib_core according to connection parameters. Check the ipoib
> device and iterate over all child devices to look for a match.

Can you give a run down on how to actually set this up? Like what
shell command do you execute?

What are the child devices in the netnamespace?

> For each ipoib device we iterate through all upper devices when searching
> for a matching IP, in order to support bonding.

Checking an IP address in a packet against a device without consulting
the routing table is a big red flag for me. Can you elaborate?

Jason
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