wireguard-linux/drivers/infiniband/core, branch update-toolchain

RDMA: Fix netdev tracker in ib_device_set_netdev

2024-07-14T07:32:57Z

If a netdev has already been assigned, ib_device_set_netdev needs to release the reference on the older netdev but it is mistakenly being called for the new netdev. Fix it and in the process use netdev_put to be symmetrical with the netdev_hold. Fixes: 09f530f0c6d6 ("RDMA: Add netdevice_tracker to ib_device_set_netdev()") Signed-off-by: David Ahern Link: https://lore.kernel.org/r/20240710203310.19317-1-dsahern@kernel.org Signed-off-by: Leon Romanovsky

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

2024-07-04T04:59:53Z

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

2024-07-01T12:38:05Z

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

2024-07-01T12:38:05Z

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: Create GSI QP only when CM is supported

2024-07-01T12:38:05Z

GSI QP is not needed if the port doesn't support connection management. In following patches mlx5 is going to support IB ports that doesn't support CM. Signed-off-by: Mark Zhang Link: https://lore.kernel.org/r/c449ebd955923b0e54c58832fd322f9d461b37a0.1718553901.git.leon@kernel.org Signed-off-by: Leon Romanovsky

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

2024-07-01T12:38:04Z

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/core: Create "issm*" device nodes only when SMI is supported

2024-07-01T12:10:15Z

For an IB port create it's issm device node only when it has SMI capability. In following patches mlx5 is going to support IB devices without this cap. Signed-off-by: Mark Zhang Link: https://lore.kernel.org/r/359f73c9a388d5e3ae971e40d8507888b1ba6f93.1718553901.git.leon@kernel.org Signed-off-by: Leon Romanovsky

RDMA/device: Return error earlier if port in not valid

2024-07-01T11:31:57Z

There is no need to allocate port data if port provided is not valid. Fixes: c2261dd76b54 ("RDMA/device: Add ib_device_set_netdev() as an alternative to get_netdev") Link: https://lore.kernel.org/r/022047a8b16988fc88d4426da50bf60a4833311b.1719235449.git.leon@kernel.org Signed-off-by: Leon Romanovsky

RDMA: Pass entire uverbs attr bundle to create cq function

2024-06-27T19:28:21Z

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

IB/core: add support for draining Shared receive queues

2024-06-26T13:53:29Z

To avoid leakage for QPs assocoated with SRQ, according to IB spec (section 10.3.1): "Note, for QPs that are associated with an SRQ, the Consumer should take the QP through the Error State before invoking a Destroy QP or a Modify QP to the Reset State. The Consumer may invoke the Destroy QP without first performing a Modify QP to the Error State and waiting for the Affiliated Asynchronous Last WQE Reached Event. However, if the Consumer does not wait for the Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment leakage may occur. Therefore, it is good programming practice to teardown a QP that is associated with an SRQ by using the following process: - Put the QP in the Error State; - wait for the Affiliated Asynchronous Last WQE Reached Event; - either: - drain the CQ by invoking the Poll CQ verb and either wait for CQ to be empty or the number of Poll CQ operations has exceeded CQ capacity size; or - post another WR that completes on the same CQ and wait for this WR to return as a WC; - and then invoke a Destroy QP or Reset QP." Catch the Last WQE Reached Event in the core layer during drain QP flow. Signed-off-by: Max Gurtovoy Link: https://lore.kernel.org/r/20240619171153.34631-2-mgurtovoy@nvidia.com Reviewed-by: Sagi Grimberg Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe