linux-toradex.git/include/uapi/rdma, branch v6.11-rc2

RDMA/core: Introduce "name_assign_type" for an IB device

2024-07-04T04:59:53+00:00

The name_assign_type indicates how the name is provided. Currently
these types are supported:
- RDMA_NAME_ASSIGN_TYPE_UNKNOWN: Unknown or not set;
- RDMA_NAME_ASSIGN_TYPE_USER: Name is provided by the user; The
  user-created sub device, rxe and siw device has this type.

When filling nl device info, it is set in the new attribute
RDMA_NLDEV_ATTR_NAME_ASSIGN_TYPE. User-space tools like udev
"rdma_rename" could check this attribute to determine if this
device needs to be renamed or not.

Signed-off-by: Mark Zhang 
Link: https://lore.kernel.org/r/522591bef9a369cc8e5dcb77787e017bffee37fe.1719837610.git.leon@kernel.org
Signed-off-by: Leon Romanovsky

RDMA/nldev: Add support to dump device type and parent device if exists

2024-07-01T12:38:05+00:00

If a device has a specific type or a parent device, dump them as well.

Example:
$ rdma dev show smi1
3: smi1: node_type ca fw 20.38.1002 node_guid 9803:9b03:009f:d5ef sys_image_guid 9803:9b03:009f:d5ee type smi parent ibp8s0f1

Signed-off-by: Mark Zhang 
Link: https://lore.kernel.org/r/4c022e3e34b5de1254a3b367d502a362cdd0c53a.1718553901.git.leon@kernel.org
Signed-off-by: Leon Romanovsky

RDMA/nldev: Add support to add/delete a sub IB device through netlink

2024-07-01T12:38:05+00:00

Add new netlink commands and attributes to support adding and deleting
a sub IB device with admin privilege.

Examples:
$ rdma dev add smi1 type SMI parent ibp8s0f1
$ rdma dev del smi1

Signed-off-by: Mark Zhang 
Link: https://lore.kernel.org/r/77cbf1b36359642be8a8d8c5c2f4e585b544282f.1718553901.git.leon@kernel.org
Signed-off-by: Leon Romanovsky

RDMA/core: Support IB sub device with type "SMI"

2024-07-01T12:38:04+00:00

This patch adds 2 APIs, as well as driver operations to support adding
and deleting an IB sub device, which provides part of functionalities
of it's parent.

A sub device has a type; for a sub device with type "SMI", it provides
the smi capability through umad for its parent, meaning uverb is not
supported.

A sub device cannot live without a parent. So when a parent is
released, all it's sub devices are released as well.

Signed-off-by: Mark Zhang 
Link: https://lore.kernel.org/r/44253f7508b21eb2caefea3980c2bc072869116c.1718553901.git.leon@kernel.org
Signed-off-by: Leon Romanovsky

RDMA/mlx5: Send UAR page index as ioctl attribute

2024-06-27T19:28:22+00:00

Add UAR page index as a driver ioctl attribute to increase the number of
supported indices, previously limited to 16 bits by mlx5_ib_create_cq
struct.

Link: https://lore.kernel.org/r/0e18b34d7ec3b1ae02d694b0d545aed7413c0ef7.1719512393.git.leon@kernel.org
Signed-off-by: Akiva Goldberger 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Jason Gunthorpe

RDMA: Pass entire uverbs attr bundle to create cq function

2024-06-27T19:28:21+00:00

Changes the create_cq verb signature by sending the entire uverbs attr
bundle as a parameter. This allows drivers to send driver specific attrs
through ioctl for the create_cq verb and access them in their driver
specific code.

Also adds a new enum value for driver specific ioctl attributes for
methods already supporting UHW.

Link: https://lore.kernel.org/r/ed147343987c0d43fd391c1b2f85e2f425747387.1719512393.git.leon@kernel.org
Signed-off-by: Akiva Goldberger 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Jason Gunthorpe

RDMA/mana_ib: Implement uapi to create and destroy RC QP

2024-05-30T12:26:57+00:00

Implement user requests to create and destroy an RC QP.
As the user does not have an FMR queue, it is skipped and NO_FMR flag
is used.

Signed-off-by: Konstantin Taranov 
Link: https://lore.kernel.org/r/1716366242-558-3-git-send-email-kotaranov@linux.microsoft.com
Reviewed-by: Zhu Yanjun 
Signed-off-by: Leon Romanovsky

RDMA/bnxt_re: Expose the MSN table capability for user library

2024-05-30T10:28:02+00:00

BNXT_RE_COMP_MASK_UCNTX_HW_RETX_ENABLED was introduced to share the HW
retransmit capability between driver and lib. The main difference in
implementation for HW Retransmit support is the usage of MSN table or
PSN table . When HW retrans is enabled, HW expects MSN table to be
allocated by driver/lib, else PSN table (for older adapters).

FW expose a new field which gives MSN capability. Drivers and libs can
depend on the new field instead of HW Retrasns capability. For
adapters which support HW_RETX feature, MSN table capability will be
set. For older adapters, this value will be 0(to maintain backward
compatibility with older FW).

Rename UAPI just to capture the correct name of the HW capability
that driver/library is interested in. No functional impact even if
older rdma-core is used.

Signed-off-by: Selvin Xavier 
Link: https://lore.kernel.org/r/1716876697-25970-3-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky

RDMA/efa: Support QP with unsolicited write w/ imm. receive

2024-05-08T08:18:26+00:00

Add a new EFA flags attribute for QP creation, and support unsolicited
write with immediate flag. QPs created with this flag set will not
consume receive work requests for incoming RDMA write with immediate.
Expose device capability bit for this feature support.

Reviewed-by: Daniel Kranzdorf 
Reviewed-by: Firas Jahjah 
Signed-off-by: Michael Margolin 
Link: https://lore.kernel.org/r/20240506151829.6475-1-mrgolin@amazon.com
Signed-off-by: Leon Romanovsky

RDMA/mana_ib: implement uapi for creation of rnic cq

2024-05-05T12:27:23+00:00

Enable users to create RNIC CQs using a corresponding flag.
With the previous request size, an ethernet CQ is created.
As a response, return ID of the created CQ.

Signed-off-by: Konstantin Taranov 
Link: https://lore.kernel.org/r/1714137160-5222-6-git-send-email-kotaranov@linux.microsoft.com
Reviewed-by: Long Li 
Signed-off-by: Leon Romanovsky