RDMA/irdma: Add wait for suspend on SQD

Currently, there is no wait for the QP suspend to complete on a modify
to SQD state. Add a wait, after the modify to SQD state, for the Suspend
Complete AE. While we are at it, update the suspend timeout value in
irdma_prep_tc_change to use IRDMA_EVENT_TIMEOUT_MS too.

Fixes: b48c24c2d710 ("RDMA/irdma: Implement device supported verb APIs")
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Link: https://lore.kernel.org/r/20231114170246.238-3-shiraz.saleem@intel.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

IB: Use capital "OR" for multiple licenses in SPDX

Documentation/process/license-rules.rst and checkpatch expect the SPDX
identifier syntax for multiple licenses to use capital "OR". Correct it
to keep consistent format and avoid copy-paste issues.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230823092912.122674-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>

RDMA/irdma: Add support for address handle re-use

Address handles (AH) are a limited HW resource and some user applications
may create large numbers of identical AH's. Avoid running out of AH's by
reusing existing identical ones.

Link: https://lore.kernel.org/r/20220228183650.290-1-shiraz.saleem@intel.com
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

RDMA/irdma: Fix Passthrough mode in VM

Using PCI_FUNC macro in a VM, when the device is in passthrough mode does
not provide the real function instance. This means that currently, devices
will not probe unless the instance in the VM matches the instance in the
host.

Fix this by getting the pf_id from the LAN during the probe.

Fixes: 8498a30e1b94 ("RDMA/irdma: Register auxiliary driver and implement private channel OPs")
Link: https://lore.kernel.org/r/20220225163211.127-3-shiraz.saleem@intel.com
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

RDMA/irdma: Propagate error codes

All functions now return linux error codes. Propagate the return from
these functions as opposed to converting them to generic values.

Link: https://lore.kernel.org/r/20220217151851.1518-3-shiraz.saleem@intel.com
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

RDMA/irdma: Remove enum irdma_status_code

Replace use of custom irdma_status_code with linux error codes.

Remove enum irdma_status_code and header in which its defined.

Link: https://lore.kernel.org/r/20220217151851.1518-2-shiraz.saleem@intel.com
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

RDMA/irdma: Add support for DSCP

Add DSCP support for the Intel Ethernet 800 Series devices. Setup VSI
DSCP info when PCI driver indicates DSCP mode during driver probe or as
notification event.

Link: https://lore.kernel.org/r/20220202191921.1638-4-shiraz.saleem@intel.com
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

RDMA/irdma: Refactor DCB bits in prep for DSCP support

Rename dcb flag to dcb_vlan_mode in irdma_device struct. Add a new helper
function, irdma_set_qos_info, to set the VSI QoS information passed by the
PCI driver.

Link: https://lore.kernel.org/r/20220202191921.1638-3-shiraz.saleem@intel.com
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

RDMA/irdma: Use auxiliary_device driver data helpers

Use auxiliary_get_drvdata and auxiliary_set_drvdata helpers.

Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Link: https://lore.kernel.org/r/20211221235852.323752-2-david.e.box@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

RDMA/irdma: Set protocol based on PF rdma_mode flag

Set the RDMA protocol to use at driver bind time based on the ice PF's
rdma_mode flag.

Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Tested-by: Leszek Kaliszczuk <leszek.kaliszczuk@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

RDMA/irdma: Check vsi pointer before using it

Fix a coverity warning about NULL pointer dereference:
Dereferencing "vsi", which is known to be "NULL".

Link: https://lore.kernel.org/r/20210708213521.438-1-tatyana.e.nikolova@intel.com
Reported-by: coverity-bot <keescook+coverity-bot@chromium.org>
Addresses-Coverity-ID: 1505164 ("Null pointer dereferences")
Fixes: 8498a30e1b94 ("RDMA/irdma: Register auxiliary driver and implement private channel OPs")
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

RDMA/irdma: Register auxiliary driver and implement private channel OPs

Register auxiliary drivers which can attach to auxiliary RDMA
devices from Intel PCI netdev drivers i40e and ice. Implement the private
channel ops, and register net notifiers.

Link: https://lore.kernel.org/r/20210602205138.889-2-shiraz.saleem@intel.com
[flexible array transformation]
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>