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| author | Roland Dreier <rolandd@cisco.com> | 2007-10-09 19:59:15 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2007-10-09 19:59:15 -0700 |
| commit | 2be8e3ee8efd6f99ce454115c29d09750915021a (patch) | |
| tree | 00e21e061a18c7bd1339ebbb637de9701863312d /Documentation/prio_tree.txt | |
| parent | c01759cee91379cc3cb551bfd7c76f1b51f91ca2 (diff) | |
| download | linux-stable-2be8e3ee8efd6f99ce454115c29d09750915021a.tar.gz linux-stable-2be8e3ee8efd6f99ce454115c29d09750915021a.tar.bz2 linux-stable-2be8e3ee8efd6f99ce454115c29d09750915021a.zip | |
IB/umad: Add P_Key index support
Add support for setting the P_Key index of sent MADs and getting the
P_Key index of received MADs. This requires a change to the layout of
the ABI structure struct ib_user_mad_hdr, so to avoid breaking
compatibility, we default to the old (unchanged) ABI and add a new
ioctl IB_USER_MAD_ENABLE_PKEY that allows applications that are aware
of the new ABI to opt into using it.
We plan on switching to the new ABI by default in a year or so, and
this patch adds a warning that is printed when an application uses the
old ABI, to push people towards converting to the new ABI.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Reviewed-by: Sean Hefty <sean.hefty@intel.com>
Reviewed-by: Hal Rosenstock <hal@xsigo.com>
Diffstat (limited to 'Documentation/prio_tree.txt')
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