tree 9eb1621a6806950d89496c5dde9ff36b6ae90b71
parent 2c53b436a30867eb6b47dd7bab23ba638d1fb0d2
author Steve Wise <swise@opengridcomputing.com> 1306950554 +0000
committer Roland Dreier <roland@purestorage.com> 1308336765 -0700

RDMA/cxgb4: Don't exceed hw IQ depth limit for user CQs

Memory allocated for user CQs gets rounded up to the next page
boundary.  And after rounding, we recalculate the resulting IQ depth
and we need to make sure we don't exceed the HW limits.

This bug can result a much smaller CQ allocated than was expected if
the HW size field is exceeded, resulting in CQ overflow failures.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>