From: Marcel Apfelbaum <marcela@dev.mellanox.co.il>
Date: Tue, 13 Dec 2011 04:16:56 +0000 (+0000)
Subject: mlx4_core: mtts resources units changed to offset
X-Git-Tag: v3.3-rc1~182^2~228
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2b8fb2867ca2736a715a88067fd0ec2904777cbe;p=pandora-kernel.git

mlx4_core: mtts resources units changed to offset

In the previous implementation mtts are managed by:
1. order     - log(mtt segments), 'mtt segment' groups several mtts together.
2. first_seg - segment location relative to mtt table.
In the current implementation:
1. order     - log(mtts) rather than segments
2. offset    - mtt index in mtt table

Note: The actual mtt allocation is made in segments but it is
      transparent to callers.

Rational: The mtt resource holders are not interested on how the allocation
          of mtt is done, but rather on how they will use it.

Signed-off-by: Marcel Apfelbaum <marcela@dev.mellanox.co.il>
Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
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