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linux/drivers/infiniband/hw/mlx4
Jack Morgenstein 00f5ce99dc mlx4: Use port management change event instead of smp_snoop
The port management change event can replace smp_snoop.  If the
capability bit for this event is set in dev-caps, the event is used
(by the driver setting the PORT_MNG_CHG_EVENT bit in the async event
mask in the MAP_EQ fw command).  In this case, when the driver passes
incoming SMP PORT_INFO SET mads to the FW, the FW generates port
management change events to signal any changes to the driver.

If the FW generates these events, smp_snoop shouldn't be invoked in
ib_process_mad(), or duplicate events will occur (once from the
FW-generated event, and once from smp_snoop).

In the case where the FW does not generate port management change
events smp_snoop needs to be invoked to create these events.  The flow
in smp_snoop has been modified to make use of the same procedures as
in the fw-generated-event event case to generate the port management
events (LID change, Client-rereg, Pkey change, and/or GID change).

Port management change event handling required changing the
mlx4_ib_event and mlx4_dispatch_event prototypes; the "param" argument
(last argument) had to be changed to unsigned long in order to
accomodate passing the EQE pointer.

We also needed to move the definition of struct mlx4_eqe from
net/mlx4.h to file device.h -- to make it available to the IB driver,
to handle port management change events.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-07-10 09:47:10 -07:00
..
ah.c IB/mlx4: Fix SL to 802.1Q priority-bits mapping for IBoE 2012-01-03 21:00:02 -08:00
cq.c IB/mlx4: Increase the number of vectors (EQs) available for ULPs 2012-05-18 17:04:00 -07:00
doorbell.c IB: expand ib_umem_get() prototype 2008-04-29 08:06:12 -07:00
Kconfig mlx4: Fix infiniband Kconfig dependencies. 2011-08-11 23:05:05 -07:00
mad.c mlx4: Use port management change event instead of smp_snoop 2012-07-10 09:47:10 -07:00
main.c mlx4: Use port management change event instead of smp_snoop 2012-07-10 09:47:10 -07:00
Makefile IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adapters 2007-05-08 18:00:38 -07:00
mlx4_ib.h mlx4: Use port management change event instead of smp_snoop 2012-07-10 09:47:10 -07:00
mr.c IB/mlx4: Replace printk(KERN_yyy...) with pr_yyy(...) 2012-05-08 11:59:36 -07:00
qp.c IB/mlx4: Add debug prints 2012-07-08 18:05:06 -07:00
srq.c IB/mlx4: Replace printk(KERN_yyy...) with pr_yyy(...) 2012-05-08 11:59:36 -07:00
user.h mlx4: Update/add Mellanox Technologies copyright lines to mlx4 driver files 2008-07-25 10:32:52 -07:00