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IB/ipath: Make handling of one subport consistent

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Previously the driver and userspace code handled the case of 1 subport
somewhat inconsistently.  The new interpretation of this situation is
that if one subport is requested, the driver turns on the subport
mechanism and arranges for the port to be "shared" by one process.  In
normal use the userspace library does not use this configuration and
instead arranges for the port not to be shared at all.  This
particular idiom can be useful for testing purposes.

Signed-off-by: Mark Debbage <mark.debbage@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Mark Debbage 2007-06-18 14:24:46 -07:00 committed by Roland Dreier
parent 0df6291c8a
commit bacf401353
1 changed files with 2 additions and 2 deletions
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4
drivers/infiniband/hw/ipath/ipath_file_ops.c
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@ -1444,10 +1444,10 @@ static int init_subports(struct ipath_devdata *dd,
size_t size;
/*
* If the user is requesting zero or one port,
* If the user is requesting zero subports,
* skip the subport allocation.
*/
if (uinfo->spu_subport_cnt <= 1)
if (uinfo->spu_subport_cnt <= 0)
goto bail;
/* Self-consistency check for ipath_compatible_subports() */