RDMA/mana_ib: Fix integer overflow during queue creation

Check queue size during CQ creation for users to prevent
overflow of u32.

Fixes: bec127e45d9f ("RDMA/mana_ib: create kernel-level CQs")
Sign

RDMA/mana_ib: Fix integer overflow during queue creation

Check queue size during CQ creation for users to prevent
overflow of u32.

Fixes: bec127e45d9f ("RDMA/mana_ib: create kernel-level CQs")
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://patch.msgid.link/[email protected]
Reviewed-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>

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RDMA/mana_ib: Handle net event for pointing to the current netdev

When running under Hyper-V, the master device to the RDMA device is always
bonded to this RDMA device. This is not user-configurable

RDMA/mana_ib: Handle net event for pointing to the current netdev

When running under Hyper-V, the master device to the RDMA device is always
bonded to this RDMA device. This is not user-configurable.

The master device can be unbind/bind from the kernel. During those events,
the RDMA device should set to the current netdev to reflect the change of
master device from those events.

Signed-off-by: Long Li <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>

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net: mana: Change the function signature of mana_get_primary_netdev_rcu

Change mana_get_primary_netdev_rcu() to mana_get_primary_netdev(), and
return the ndev with refcount held. The caller is respo

net: mana: Change the function signature of mana_get_primary_netdev_rcu

Change mana_get_primary_netdev_rcu() to mana_get_primary_netdev(), and
return the ndev with refcount held. The caller is responsible for dropping
the refcount.

Also drop the check for IFF_SLAVE as it is not necessary if the upper
device is present.

Signed-off-by: Long Li <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>

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RDMA/mana_ib: Use safer allocation function()

My static checker says this multiplication can overflow. I'm not an
expert in this code but the call tree would be:

ib_uverbs_handler_UVERBS_METHOD_QP

RDMA/mana_ib: Use safer allocation function()

My static checker says this multiplication can overflow. I'm not an
expert in this code but the call tree would be:

ib_uverbs_handler_UVERBS_METHOD_QP_CREATE() <- reads cap from the user
-> ib_create_qp_user()
-> create_qp()
-> mana_ib_create_qp()
-> mana_ib_create_ud_qp()
-> create_shadow_queue()

It can't hurt to use safer interfaces.

Fixes: c8017f5b4856 ("RDMA/mana_ib: UD/GSI work requests")
Signed-off-by: Dan Carpenter <[email protected]>
Link: https://patch.msgid.link/[email protected]
Reviewed-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>

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RDMA/mana_ib: Ensure variable err is initialized

In the function mana_ib_gd_create_dma_region if there are no dma blocks
to process the variable `err` remains uninitialized.

Fixes: 0266a177631d ("R

RDMA/mana_ib: Ensure variable err is initialized

In the function mana_ib_gd_create_dma_region if there are no dma blocks
to process the variable `err` remains uninitialized.

Fixes: 0266a177631d ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter")
Signed-off-by: Kees Bakker <[email protected]>
Link: https://patch.msgid.link/[email protected]
Reviewed-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>

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RDMA/mana_ib: Implement DMABUF MR support

Add support of dmabuf MRs to mana_ib.

Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://patch.msgid.link/1739454861-4456-1-git-send

RDMA/mana_ib: Implement DMABUF MR support

Add support of dmabuf MRs to mana_ib.

Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://patch.msgid.link/[email protected]
Reviewed-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>

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RDMA/mana_ib: Fix error code in probe()

Return -ENOMEM if dma_pool_create() fails. Don't return success.

Fixes: df91c470d9e5 ("RDMA/mana_ib: create/destroy AH")
Signed-off-by: Dan Carpenter <dan.c

RDMA/mana_ib: Fix error code in probe()

Return -ENOMEM if dma_pool_create() fails. Don't return success.

Fixes: df91c470d9e5 ("RDMA/mana_ib: create/destroy AH")
Signed-off-by: Dan Carpenter <[email protected]>
Link: https://patch.msgid.link/[email protected]
Reviewed-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>

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RDMA/mana_ib: Add port statistics support

Implement alloc_hw_port_stats and get_hw_stats APIs to support querying
MANA VF port level statistics from rdma stat tool.

Example output from rdma stat to

RDMA/mana_ib: Add port statistics support

Implement alloc_hw_port_stats and get_hw_stats APIs to support querying
MANA VF port level statistics from rdma stat tool.

Example output from rdma stat tool:

$rdma statistic show link mana_0/1 -p
link mana_0/1
requester_timeout 45
requester_oos_nak 0
requester_rnr_nak 0
responder_rnr_nak 0
responder_oos 0
responder_dup_request 0
requester_implicit_nak 0
requester_readresp_psn_mismatch 0
nak_inv_req 0
nak_access_error 0
nak_opp_error 0
nak_inv_read 0
responder_local_len_error 0
requestor_local_prot_error 0
responder_rem_access_error 0
responder_local_qp_error 0
responder_malformed_wqe 0
general_hw_error 6
requester_rnr_nak_retries_exceeded 0
requester_retries_exceeded 5
total_fatal_error 6
received_cnps 0
num_qps_congested 0
rate_inc_events 0
num_qps_recovered 0
current_rate 100000

Signed-off-by: Shiraz Saleem <[email protected]>
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://patch.msgid.link/[email protected]
Reviewed-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>

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RDMA/mana_ib: Allocate PAGE aligned doorbell index

Allocate a PAGE aligned doorbell index to ensure each process gets a
separate PAGE sized doorbell area space remapped to it in mana_ib_mmap

Fixes:

RDMA/mana_ib: Allocate PAGE aligned doorbell index

Allocate a PAGE aligned doorbell index to ensure each process gets a
separate PAGE sized doorbell area space remapped to it in mana_ib_mmap

Fixes: 0266a177631d ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter")
Signed-off-by: Shiraz Saleem <[email protected]>
Signed-off-by: Konstantin Taranov <[email protected]>
Link: https://patch.msgid.link/[email protected]
Reviewed-by: Long Li <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>

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