Removing the use of IDR variable just to name the function ids. Using the
PCI_FUNC(pdev->devfn) instead to create the device name, associated
resources and to print driver into at various places.
Reported-by: NMatthew Wilcox <willy@infradead.org>
Signed-off-by: NDevesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

Now that we have a single IB device with multiple ports we can remove the
VF representor profile.
Signed-off-by: NMark Bloch <markb@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

Move from IB device (representor) per virtual function to single IB device
with port per virtual function (port 1 represents the uplink). As number
of ports is a static property of an IB device, declare the IB device with
as many port as the possible according to the PCI bus.
Signed-off-by: NMark Bloch <markb@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

We store the SMI information in the core device's struct, make sure we set
that information only once (and not per port), while here make the for
loop based on the actual size of the array.
Signed-off-by: NMark Bloch <markb@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

The design of representors is such that once an IB representor is created,
the netdev of representor already exists, we can use that fact to simplify
the netdev affinity code.
Signed-off-by: NMark Bloch <markb@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

Currently the steering for SQs created on representors is done on
creation, once we move to representors as ports of an IB device we need
the port argument which is given only at the modify QP stage, adjust the
code appropriately.
Signed-off-by: NMark Bloch <markb@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

In preparation of moving into a model of single IB device multiple ports
move rep to be part of the port structure. We mark a representor device by
setting is_rep, no functional change with this patch.
Signed-off-by: NMark Bloch <markb@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

On allocation we use the array size and on destruction num_ports, use the
array size of destruction as well, in this context the array corresponds
to the native/actual ports on the NIC so no need to adjust this logic for
representors.
Signed-off-by: NMark Bloch <markb@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

In downstream patches we will need access to the ports before doing any
stages, in order to set net device per representor.
Signed-off-by: NMark Bloch <markb@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

Simplify the code and move the deallocation of the IB device into the
remove function.
Signed-off-by: NMark Bloch <markb@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

Netdev info is stored in a separate array and holds data relevant on a per
port basis, move it to be part of the port struct.
Signed-off-by: NMark Bloch <markb@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

Merge branch 'mlx5-next' into rdma.git for-next

From
git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux

Required for dependencies on the next series

* branch 'mlx5-next':
  net/mlx5: E-Switch, add a new prio to be used by the RDMA side
  net/mlx5: E-Switch, don't use hardcoded values for FDB prios
  net/mlx5: Fix false compilation warning
  net/mlx5: Expose MPEIN (Management PCIE INfo) register layout
  net/mlx5: Add rate limit print macros
  net/mlx5: Add explicit bar address field
  net/mlx5: Replace dev_err/warn/info by mlx5_core_err/warn/info
  net/mlx5: Use dev->priv.name instead of dev_name
  net/mlx5: Make mlx5_core messages independent from mdev->pdev
  net/mlx5: Break load_one into three stages
  net/mlx5: Function setup/teardown procedures
  net/mlx5: Move health and page alloc init to mdev_init
  net/mlx5: Split mdev init and pci init
  net/mlx5: Remove redundant init functions parameter
  net/mlx5: Remove spinlock support from mlx5_write64
  net/mlx5: Remove unused MLX5_*_DOORBELL_LOCK macros
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

Create a new prio in the FDB, it will be used when inserting steering rules
into the FDB from the RDMA side. We create a new PRIO so rules from the
net side and rules from the RDMA side won't be inserted to the same PRIO,
each side has it's own sandbox to play in.
Signed-off-by: NMark Bloch <markb@mellanox.com>
Reviewed-by: NMaor Gottlieb <maorg@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>

When creating the FDB prios, use the enum values already defined and not
the hardcoded values.
Signed-off-by: NMark Bloch <markb@mellanox.com>
Reviewed-by: NMaor Gottlieb <maorg@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>

cxgb4 has a simple non-dynamic use of get_netdev, so conversion is
straightforward.
Signed-off-by: NSteve Wise <swise@opengridcomputing.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

Drivers that never change their ndev dynamically do not need to use
the get_netdev callback.
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>
Acked-by: NSelvin Xavier <selvin.xavier@broadcom.com>
Acked-by: NMichal Kalderon <michal.kalderon@marvell.com>
Acked-by: NAdit Ranadive <aditr@vmware.com>

In mhop 0 mode, 64*bt_num queues can be supported.
In mhop 1 mode, 32K*bt_num queues can be supported.
Config srqc_hop_num to 1 to support 1M SRQ queues.
Signed-off-by: Nchenglang <chenglang@huawei.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

With page combining, the assumption that number of SG entries in umem SGL
equal to number of system pages in umem no longer holds.

umem->sg_nents tracks the SG entries in umem SGL. Use it in
sg_pcopy_to_buffer() as opposed to ib_umem_num_pages(umem).

Fixes: d10bcf94 ("RDMA/umem: Combine contiguous PAGE_SIZE regions in SGEs")
Reported-by: NJason Gunthorpe <jgg@mellanox.com>
Signed-off-by: NShiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

This patch adds support of resource track for hip08 and take dumping cq
context state used for debugging as an example.  More resources track
supports for hns driver will be added in future.

The output should be as follows.
$ rdma res show cq dev hnseth0 -d
dev hnseth0 cqe 1023 users 2 poll-ctx WORKQUEUE pid 0 comm [ib_core] drv_state 2 drv_ceq
n 0 drv_cqn 0 drv_hopnum 1 drv_pi 0 drv_ci 0 drv_coalesce 0 drv_period 0 drv_cnt 0
Signed-off-by: NTao Tian <tiantao6@huawei.com>
Signed-off-by: NYangyang Li <liyangyang20@huawei.com>
Signed-off-by: Nchenglang <chenglang@huawei.com>
Signed-off-by: NLijun Ou <oulijun@huawei.com>
Reviewed-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

Convert SRQ allocation from drivers to be in the IB/core
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

Simplify drivers by ensuring lifetime of ib_ah object. The changes
in .create_ah() go hand in hand with relevant update in .destroy_ah().

We will use this opportunity and convert .destroy_ah() to don't fail, as
it was suggested a long time ago, because there is nothing to do in case
of failure during destroy.
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

AH objects are allocated in atomic context and those allocations should
be done with GFP_ATOMIC.
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

The ucontext and ufile should not be accessed via the uobject, all these
cases have an attrs so use that instead.
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

These should all go through udata now. Add mlx5_udata_to_mdev to convert
a udata into the struct mlx5_ib_dev as these call sites require.
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

Add new RDMA_NLDEV_ATTR_DEV_PROTOCOL attribute to give ability for UDEV
rules create IB device stable names based on link type protocol.  The
assumption that devices like mlx4 with duality in their link type under
one IB device struct won't be allowed in the future.
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Reviewed-by: NParav Pandit <parav@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

The sysfs layout is created by CM incorrectly presented RDMA devices with
InfiniBand link layer. Layout of such devices represents device tree of
connections. By moving CM statistics to be under relevant port of IB
device, we will fix the following issues:

 * Symlink name - It used device name instead of specific identifier.
 * Target location - It was supposed to point to PCI-ID/infiniband_cm/
   instead of PCI-ID/infiniband/
 * Target name - It created extra device file under already existing
   device folder, e.g. mlx5_0/mlx5_0
 * Crash during boot with RDMA persistent naming patches.

 sysfs: cannot create duplicate filename '/class/infiniband_cm/mlx5_0'
 CPU: 29 PID: 433 Comm: modprobe Not tainted 5.0.0-rc5+ #178
 Call Trace:
  dump_stack+0xcc/0x180
  sysfs_warn_dup.cold.3+0x17/0x2d
  sysfs_do_create_link_sd.isra.2+0xd0/0xf0
  device_add+0x7cb/0x1450
  device_create_groups_vargs+0x1ae/0x220
  device_create+0x93/0xc0
  cm_add_one+0x38f/0xf60 [ib_cm]
  add_client_context+0x167/0x210 [ib_core]
  enable_device_and_get+0x230/0x3f0 [ib_core]
  ib_register_device+0x823/0xbf0 [ib_core]
  __mlx5_ib_add+0x45/0x150 [mlx5_ib]
  mlx5_ib_add+0x1b3/0x5e0 [mlx5_ib]
  mlx5_add_device+0x130/0x3a0 [mlx5_core]
  mlx5_register_interface+0x1a9/0x270 [mlx5_core]
  do_one_initcall+0x14f/0x5de
  do_init_module+0x247/0x7c0
  load_module+0x4c2f/0x60d0
  entry_SYSCALL_64_after_hwframe+0x49/0xbe

After this change:
[leonro@server ~]$ ls -al /sys/class/infiniband/ibp0s12f0/ports/1/
drwxr-xr-x  2 root root    0 Mar 11 11:17 cm_rx_duplicates
drwxr-xr-x  2 root root    0 Mar 11 11:17 cm_rx_msgs
drwxr-xr-x  2 root root    0 Mar 11 11:17 cm_tx_msgs
drwxr-xr-x  2 root root    0 Mar 11 11:17 cm_tx_retries

Fixes: 110cf374 ("infiniband: make cm_device use a struct device and not a kobject.")
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

The check on record->event is always true because the wrong operator
is being used, used && instead of ||

Addresses-Coverity: ("Constant expression result")
Fixes: fae7a699 ("opa_vnic: Convert vport_idr to XArray")
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Acked-by: NDennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: NMukesh Ojha <mojha@codeaurora.org>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

Combine contiguous regions of PAGE_SIZE pages into single scatter list
entry while building the scatter table for a umem. This minimizes the
number of the entries in the scatter list and reduces the DMA mapping
overhead, particularly with the IOMMU.

Set default max_seg_size in core for IB devices to 2G and do not combine
if we exceed this limit.

Also, purge npages in struct ib_umem as we now DMA map the umem SGL with
sg_nents and npage computation is not needed. Drivers should now be using
ib_umem_num_pages(), so fix the last stragglers.

Move npages tracking to ib_umem_odp as ODP drivers still need it.
Suggested-by: NJason Gunthorpe <jgg@ziepe.ca>
Reviewed-by: NMichael J. Ruhl <michael.j.ruhl@intel.com>
Reviewed-by: NIra Weiny <ira.weiny@intel.com>
Acked-by: NAdit Ranadive <aditr@vmware.com>
Signed-off-by: NShiraz Saleem <shiraz.saleem@intel.com>
Tested-by: NGal Pressman <galpress@amazon.com>
Tested-by: NSelvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

Static global variables are initialized to zero by C standard,
there is no need to zero them again.
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

On receiving a TERM from tje peer, Host moves the QP to TERMINATE state
and then moves the adapter out of RDMA mode. After issuing a TERM, peer
issues a CLOSE and at this point of time if the connectivity between peer
and host is lost for a significant amount of time, the QP remains in
TERMINATE state.

Therefore c4iw_modify_qp() needs to initiate a close on entering terminate
state.
Signed-off-by: NPotnuri Bharat Teja <bharat@chelsio.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

Refactor the page fault handler to be more readable and extensible, this
cleanup was triggered by the error reported below. The code structure made
it unclear to the automatic tools to identify that such a flow is not
possible in real life because "requestor != NULL" means that "qp != NULL"
too.

    drivers/infiniband/hw/mlx5/odp.c:1254 mlx5_ib_mr_wqe_pfault_handler()
    error: we previously assumed 'qp' could be null (see line 1230)

Fixes: 08100fad ("IB/mlx5: Add ODP SRQ support")
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: NMoni Shoua <monis@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

Based on rdma.git for-rc for dependencies.

From Dennis Dalessandro:

====================

Here are some code improvement patches and fixes for less serious bugs to
TID RDMA than we sent for RC.

====================

* HFI1 updates:
  IB/hfi1: Implement CCA for TID RDMA protocol
  IB/hfi1: Remove WARN_ON when freeing expected receive groups
  IB/hfi1: Unify the software PSN check for TID RDMA READ/WRITE
  IB/hfi1: Add a function to read next expected psn from hardware flow
  IB/hfi1: Delay the release of destination mr for TID RDMA WRITE DATA
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

Currently, FECN handling is not implemented on TID RDMA expected receive
packets and therefore CCA can't be turned on when TID RDMA is
enabled. This patch adds the CCA support to TID RDMA protocol by:

- modifying FECN RSM rule to include kernel receive contexts

- For TID_RDMA READ RESP or TID RDMA ACK packet, a CNP will be sent out if
  the FECN bit is set. For other TID RDMA packets that generate at least
  one response packet, the BECN bit will be set in the first response
  packet

- Copying expected packet data to destination buffer when FECN bit is set
  in the TID RDMA READ RESP or TID RDMA WRITE DATA packet. In this case,
  the expected packet is received as an eager packet

- Handling the TID sequence error for subsequent normal expected packets.
Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: NDennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: NMichael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: NKaike Wan <kaike.wan@intel.com>
Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

When PSM user receive context is freed, the expected receive groups
allocated by the receive context will also been freed. However, if there
are still TID entries in use, the receive groups rcd->tid_full_list or
rcd->tid_used_list will not be empty, and thus triggering the WARN_ONs in
the function hfi1_free_ctxt_rcv_groups().  Even if the two lists may not
be empty, the hfi1 driver will free all TID entries and receive groups
associated with the receive context to prevent any resource leakage. Since
a clean user application exit is not controlled by the hfi1 driver, this
patch will remove the WARN_ONs in hfi1_free_ctxt_rcv_groups().
Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: NMichael J. Ruhl <michael.j.ruhl@intel.com>
Reviewed-by: NDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: NKaike Wan <kaike.wan@intel.com>
Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

For expected packet receiving, the hfi1 hardware checks the KDETH PSN
automatically. However, when sequence error occurs, the hfi1 driver can
check the sequence instead until the hardware flow generation is reloaded.

TID RDMA READ and WRITE protocols implement similar software checking
mechanisms, but with different flags and different local variables to
store next expected PSN.

Unify the handling by using only one set of flag and local variable for
both TID RDMA READ and WRITE protocols.
Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: NDennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: NMichael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: NKaike Wan <kaike.wan@intel.com>
Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

This patch adds a function to read next expected KDETH PSN from hardware
flow to simplify the code.
Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: NDennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: NMichael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: NKaike Wan <kaike.wan@intel.com>
Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

The reference of destination memory region is first obtained when TID RDMA
WRITE request is first received on the responder side. This reference is
released once all TID RDMA WRITE RESP packets are sent to the requester
side, even though not all TID RDMA WRITE DATA packets may have been
received. This early release will especially be undesired if the software
needs to access the destination memory before the last data packet is
received.

This patch delays the release of the MR until all TID RDMA DATA packets
have been received. A helper function to release the reference is also
created to simplify the code.
Reviewed-by: NMike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: NDennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: NMichael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: NKaike Wan <kaike.wan@intel.com>
Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

Conversion from IDR to XArray missed the fact that idr_alloc() returned
index as a return value, this index was saved in port variable and used as
query index later on. This caused to the following error.

 BUG: KASAN: use-after-free in cma_check_port+0x86a/0xa20 [rdma_cm]
 Read of size 8 at addr ffff888069fde998 by task ucmatose/387
 CPU: 3 PID: 387 Comm: ucmatose Not tainted 5.1.0-rc2+ #253
 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.11.0-0-g63451fca13-prebuilt.qemu-project.org 04/01/2014
 Call Trace:
  dump_stack+0x7c/0xc0
  print_address_description+0x6c/0x23c
  ? cma_check_port+0x86a/0xa20 [rdma_cm]
  kasan_report.cold.3+0x1c/0x35
  ? cma_check_port+0x86a/0xa20 [rdma_cm]
  ? cma_check_port+0x86a/0xa20 [rdma_cm]
  cma_check_port+0x86a/0xa20 [rdma_cm]
  rdma_bind_addr+0x11bc/0x1b00 [rdma_cm]
  ? find_held_lock+0x33/0x1c0
  ? cma_ndev_work_handler+0x180/0x180 [rdma_cm]
  ? wait_for_completion+0x3d0/0x3d0
  ucma_bind+0x120/0x160 [rdma_ucm]
  ? ucma_resolve_addr+0x1a0/0x1a0 [rdma_ucm]
  ucma_write+0x1f8/0x2b0 [rdma_ucm]
  ? ucma_open+0x260/0x260 [rdma_ucm]
  vfs_write+0x157/0x460
  ksys_write+0xb8/0x170
  ? __ia32_sys_read+0xb0/0xb0
  ? trace_hardirqs_off_caller+0x5b/0x160
  ? do_syscall_64+0x18/0x3c0
  do_syscall_64+0x95/0x3c0
  entry_SYSCALL_64_after_hwframe+0x49/0xbe

  Allocated by task 381:
   __kasan_kmalloc.constprop.5+0xc1/0xd0
   cma_alloc_port+0x4d/0x160 [rdma_cm]
   rdma_bind_addr+0x14e7/0x1b00 [rdma_cm]
   ucma_bind+0x120/0x160 [rdma_ucm]
   ucma_write+0x1f8/0x2b0 [rdma_ucm]
   vfs_write+0x157/0x460
   ksys_write+0xb8/0x170
   do_syscall_64+0x95/0x3c0
   entry_SYSCALL_64_after_hwframe+0x49/0xbe

  Freed by task 381:
   __kasan_slab_free+0x12e/0x180
   kfree+0xed/0x290
   rdma_destroy_id+0x6b6/0x9e0 [rdma_cm]
   ucma_close+0x110/0x300 [rdma_ucm]
   __fput+0x25a/0x740
   task_work_run+0x10e/0x190
   do_exit+0x85e/0x29e0
   do_group_exit+0xf0/0x2e0
   get_signal+0x2e0/0x17e0
   do_signal+0x94/0x1570
   exit_to_usermode_loop+0xfa/0x130
   do_syscall_64+0x327/0x3c0
   entry_SYSCALL_64_after_hwframe+0x49/0xbe

Reported-by: <syzbot+2e3e485d5697ea610460@syzkaller.appspotmail.com>
Reported-by: NRan Rozenstein <ranro@mellanox.com>
Fixes: 63826753 ("cma: Convert portspace IDRs to XArray")
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Reviewed-by: NBart Van Assche <bvanassche@acm.org>
Tested-by: NBart Van Assche <bvanassche@acm.org>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

Fix the following warning:
drivers/net/ethernet/mellanox/mlx5/core//fs_core.c:845:5:
warning: 'err' may be used uninitialized in this function
[-Wmaybe-uninitialized]

No real issue here. This is only a false compiler warning.
The 'err' variable is guaranteed to be init by time of usage.

gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-4)
Signed-off-by: NTariq Toukan <tariqt@mellanox.com>
Reviewed-by: NAlex Vesker <valex@mellanox.com>
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>

Expose PRM layout for handling MPEIN (Management PCIE Info). It will be
used in the downstream patch for querying MPEIN via the driver.
Signed-off-by: NAya Levin <ayal@mellanox.com>
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>