Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

The queue map for flush completion circumvention is only used for
kernel space queue pairs.  This patch skips the allocation of the
queue maps in case the QP is created for userspace.  In addition, this
patch does not iomap the galpas for kernel usage if the queue pair is
only used in userspace.  These changes will improve the performance of
creation of userspace queue pairs.
Signed-off-by: NStefan Roscher <stefan.roscher@de.ibm.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>

During corner case testing, we noticed that some versions of ehca do
not properly transition to interrupt done in special load situations.
This can be resolved by periodically triggering EOI through H_EOI, if
EQEs are pending.
Signed-off-by: NStefan Roscher <stefan.roscher@de.ibm.com>
Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>

- Replace init_qp_queues() by a shorter init_qp_queue(), eliminating
  duplicate code.

- hipz_h_alloc_resource_qp() doesn't need a pointer to struct ehca_qp any
  longer. All input and output data is transferred through the parms
  parameter.

- Change the interface to also support SRQ.
Signed-off-by: NJoachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>

Add "Modify Port" verb support to eHCA driver.  The IB communication
manager needs this to set the IsCM port capability bit when
initializing.
Signed-off-by: NJoachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>

Add a driver for IBM GX bus InfiniBand adapters, which are usable with
some pSeries/System p systems.

Signed-off-by: Heiko J Schick <schickhj.ibm.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>