netdev - Re: [PATCH V2 net-next 0/2] liquidio: Add support for managing liquidio adapter

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Message-ID: <20170730202103.GA8969@vergenet.net>
Date:   Sun, 30 Jul 2017 22:21:04 +0200
From:   Simon Horman <simon.horman@...ronome.com>
To:     Felix Manlunas <felix.manlunas@...ium.com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org,
        raghu.vatsavayi@...ium.com, derek.chickles@...ium.com,
        satananda.burla@...ium.com, veerasenareddy.burru@...ium.com,
        Jakub Kicinski <jakub.kicinski@...ronome.com>
Subject: Re: [PATCH V2 net-next 0/2] liquidio: Add support for managing
 liquidio adapter

On Fri, Jul 28, 2017 at 11:17:07PM -0700, Felix Manlunas wrote:
> From: Veerasenareddy Burru <veerasenareddy.burru@...ium.com>
> 
> The LiquidIO adapter has processor cores that can run Linux. This patch
> set adds support to create a virtual Ethernet interface on host to
> communicate with applications running on Linux in the LiquidIO adapter.
> The virtual Ethernet interface also provides login access to Linux on
> LiquidIO through ssh for management and debugging.

As per the somewhat more detailed feedback provided by my colleague Jakub
Kicinski to v1 of this patchset[1] I am concerned that this patchset breaks down
the long standing practice of not granting direct access to firmware from
userspace.

[1] https://www.spinics.net/lists/netdev/msg444929.html