IB/umad: Increase maximum devices supported

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Some large systems may support more than IB_UMAD_MAX_PORTS
(currently 64).

This change allows us to support more ports in a backwards-compatible
manner.  The first IB_UMAD_MAX_PORTS keep the same major/minor device
numbers they've always had.

If there are more than IB_UMAD_MAX_PORTS, we then dynamically request
a new major device number (new minors start at 0).

Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

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Alexander Chiang 2010-02-02 19:08:45 +00:00 • committed by Roland Dreier

parent dc2ed5e3c9

commit 8698d3fecc

1 changed files with 44 additions and 6 deletions

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drivers/infiniband/core/user_mad.c

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