Don't set write combining via PAT on the VL15 buffers to avoid a rare
problem with unaligned writes from interrupt-flushed store buffers.
Signed-off-by: NDave Olson <dave.olson@qlogic.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>

The DCA code was left over from internal development to test the
hardware feature and allow performance testing.  The results were
mixed and will require some additional work to make full use of the
feature.  Therefore, it is being removed for now.
Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>

As part of the earlier patches submitted and reviewed, it was agreed
to change the way serdes tuning parameters were specified to the
driver.  The updated patch got dropped by the linux-rdma email list so
the earlier version of qib_iba7322.c ended up being used.  This patch
updates qib_iab7322.c to the simpler, single parameter method of
setting the serdes parameters.
Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>

Add a low-level IB driver for QLogic PCIe adapters.
Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>