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From: "Hefty, Sean" <sean.hefty@intel.com>
To: Hal Rosenstock <hal@dev.mellanox.co.il>,
        Michael Wang <yun.wang@profitbricks.com>
CC: Roland Dreier <roland@kernel.org>,
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Subject: RE: [PATCH v3 01/28] IB/Verbs: Implement new callback
 query_transport()
Thread-Topic: [PATCH v3 01/28] IB/Verbs: Implement new callback
 query_transport()
Thread-Index: AQHQdeR/TFqa5bGhHkCw9vFJSKp0bZ1O36mA//+WyRA=
Date: Wed, 15 Apr 2015 19:29:31 +0000
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> libibverbs also exposes transport at the device level. Isn't a change to
> make transport per port rather than per device needed there as well to
> be consistent with these proposed kernel changes ? If so, would the
> additional IBoE transport be exposed ? We also need to worry about
> backward compatibility for existing applications.

Libibverbs probably can't change without bumping the major version number.  If the kernel attribute structures change, this is probably something that the user_verbs module would need to handle to avoid breaking the ABI.

- Sean
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