From: Ben Hutchings <bhutchings@solarflare.com>
Date: Mon, 13 Feb 2012 23:45:02 +0000 (+0000)
Subject: sfc: Add support for 'extra' channel types
X-Git-Tag: v3.4-rc1~177^2~270^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7f967c011ae9c59fc7e7a017070ef7b22a5a4fbf;p=pandora-kernel.git

sfc: Add support for 'extra' channel types

Abstract some of the channel operations to allow for 'extra'
channels that do not have RX or TX queues.

- Try to assign a channel to each extra channel type that is enabled
  for the NIC, but gracefully degrade if we can't allocate sufficient
  MSI-X vectors
- Allow each extra channel type to generate its own channel name
- Allow channel types to disable reallocation and reinitialisation
  of their channels

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
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