Add support for QoS on QPs. Upon device initialization,
a map is created from user priority to queue set
handles. On QP creation, use ToS to look up the queue
set handle for use with the QP.
Signed-off-by: NFaisal Latif <faisal.latif@intel.com>
Signed-off-by: NShiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: NHenry Orosco <henry.orosco@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.

The workqueue "virtchnl_wq" queues work items i40iw_cqp_generic_worker
and i40iw_cqp_manage_hmc_fcn_worker. It has been identity converted.

WQ_MEM_RECLAIM has been set to ensure forward progress under memory
pressure.
Signed-off-by: NBhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Device notifications are not received after the first interface is
closed; since there is an unregister for notifications on every
interface close. Correct this by unregistering for device
notifications only when the last interface is closed. Also, make
all operations on the i40iw_notifiers_registered atomic as it
can be read/modified concurrently.

Fixes: 8e06af71 ("i40iw: add main, hdr, status")
Signed-off-by: NMustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: NShiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

In i40iw_open(), check if interface is already open
and return success if it is.

Fixes: 8e06af71 ("i40iw: add main, hdr, status")
Reported-by: NStefan Assmann <sassmann@redhat.com>
Signed-off-by: NMustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: NShiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

i40iw_create_cqp() printed the contents of variables maj_err and min_err
in an error message before they could be initialized (by calling
dev->cqp_ops->cqp_create).
Signed-off-by: NNicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Calling synchronize_irq() right before free_irq() is quite useless. On one
hand the IRQ can easily fire again before free_irq() is entered, on the
other hand free_irq() itself calls synchronize_irq() internally (in a race
condition free way), before any state associated with the IRQ is freed.

Patch was generated using the following semantic patch:
// <smpl>
@@
expression irq;
@@
-synchronize_irq(irq);
 free_irq(irq, ...);
// </smpl>
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Reviewed-by: NLeon Romanovsky <leonro@mellanox.com>
Acked-by: Faisal Latif <faisal.latif#intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Calling synchronize_irq() right before free_irq() is quite useless. On one
hand the IRQ can easily fire again before free_irq() is entered, on the
other hand free_irq() itself calls synchronize_irq() internally (in a race
condition free way), before any state associated with the IRQ is freed.

Patch was generated using the following semantic patch:
// <smpl>
@@
expression irq;
@@
-synchronize_irq(irq);
 free_irq(irq, ...);
// </smpl>
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Reviewed-by: NLeon Romanovsky <leonro@mellanox.com>
Acked-by: Faisal Latif <faisal.latif#intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Calling synchronize_irq() right before free_irq() is quite useless. On one
hand the IRQ can easily fire again before free_irq() is entered, on the
other hand free_irq() itself calls synchronize_irq() internally (in a race
condition free way), before any state associated with the IRQ is freed.

Patch was generated using the following semantic patch:
// <smpl>
@@
expression irq;
@@
-synchronize_irq(irq);
 free_irq(irq, ...);
// </smpl>
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Reviewed-by: NLeon Romanovsky <leonro@mellanox.com>
Acked-by: Faisal Latif <faisal.latif#intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

The i40e_client_ops structure is never modified, so declare it as const.

Done with the help of Coccinelle.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

The i40e_client_ops structure is never modified, so declare it as const.

Done with the help of Coccinelle.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: NLeon Romanovsky <leonro@mellanox.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Fix endian warnings and errors due to u32 stored to u16.
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NMustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: NFaisal Latif <faisal.latif@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Initialize max enabled vfs to max rdma vfs instead of 0.
Signed-off-by: NMustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: NFaisal Latif <faisal.latif@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Queue users of virtual channel on a waitqueue until the channel is
clear instead of failing the call when the channel is occupied.
Signed-off-by: NMustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: NFaisal Latif <faisal.latif@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Remove unused code and fix warning.
Signed-off-by: NMustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: NFaisal Latif <faisal.latif@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Removei/change for port mapper code which has been moved to iwcm.
Signed-off-by: NMustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: NFaisal Latif <faisal.latif@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

i40iw_main.c contains routines for i40e <=> i40iw interface and setup.
i40iw.h is header file for main device data structures.
i40iw_status.h is for return status codes.

Changes from v2:
	more cast improvement
	fixed timing issue during unload
	added paramater change call from i40e

Changes from v1:
	improved casting issues
	do not print error using pr_err
	change from bits to bool in i40iw_cqp_request{}
Acked-by: NAnjali Singhai Jain <anjali.singhai@intel.com>
Acked-by: NShannon Nelson <shannon.nelson@intel.com>
Signed-off-by: NFaisal Latif <faisal.latif@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>