kernel/include/uapi/rdma/rdma_netlink.h, branch linux-5.2.y

RDMA/core: Change system parameters callback from dumpit to doit

2019-05-14T01:16:48Z

.dumpit() callback is used for returning same type of data in the loop, e.g. loop over ports, resources, devices. However system parameters are general and standalone for whole subsystem. It means that getting system parameters should be doit callback. Fixes: cb7e0e130503 ("RDMA/core: Add interface to read device namespace sharing mode") Signed-off-by: Parav Pandit Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe

RDMA/core: Add a netlink command to change net namespace of rdma device

2019-04-22T17:44:58Z

Provide an option to change the net namespace of a rdma device through a netlink command. When multiple rdma devices exists in a system, and when containers are used, this will limit rdma device visibility to a specified net namespace. An example command to change net namespace of mlx5_1 device to the previously created net namespace 'foo' is: $ ip netns add foo $ rdma dev set mlx5_1 netns foo Signed-off-by: Parav Pandit Signed-off-by: Jason Gunthorpe

RDMA/nldev: Return device protocol

2019-04-08T16:05:25Z

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: Leon Romanovsky Reviewed-by: Parav Pandit Signed-off-by: Jason Gunthorpe

RDMA/netlink: Remove unused data structure

2019-03-29T18:06:38Z

Delete structure which is not connected due to removal in commit cited in Fixes line. Fixes: a78e8723a505 ("RDMA/cma: Remove CM_ID statistics provided by rdma-cm module") Signed-off-by: Leon Romanovsky Reviewed-by: Dennis Dalessandro Signed-off-by: Jason Gunthorpe

RDMA/core: Add command to set ib_core device net namspace sharing mode

2019-03-28T17:52:02Z

Add netlink command that enables/disables sharing rdma device among multiple net namespaces. Using rdma tool, $rdma sys set netns shared (default mode) When rdma subsystem netns mode is set to shared mode, rdma devices will be accessible in all net namespaces. Using rdma tool, $rdma sys set netns exclusive When rdma subsystem netns mode is set to exclusive mode, devices will be accessible in only one net namespace at any given point of time. If there are any net namespaces other than default init_net exists, while executing this command, it will fail and mode cannot be changed. To change this mode, netlink command is used instead of sysctl, because netlink command allows to auto load a module. Signed-off-by: Parav Pandit Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe

RDMA/core: Add interface to read device namespace sharing mode

2019-03-28T17:52:02Z

Add an interface via netlink command to query whether rdma devices are shared among multiple net namespaces or not. When using RDMAtool, it can be queried as, $rdma system show netns netns shared Signed-off-by: Parav Pandit Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe

RDMA/core: Add RDMA_NLDEV_CMD_NEWLINK/DELLINK support

2019-02-20T03:52:19Z

Add support for new LINK messages to allow adding and deleting rdma interfaces. This will be used initially for soft rdma drivers which instantiate device instances dynamically by the admin specifying a netdev device to use. The rdma_rxe module will be the first user of these messages. The design is modeled after RTNL_NEWLINK/DELLINK: rdma drivers register with the rdma core if they provide link add/delete functions. Each driver registers with a unique "type" string, that is used to dispatch messages coming from user space. A new RDMA_NLDEV_ATTR is defined for the "type" string. User mode will pass 3 attributes in a NEWLINK message: RDMA_NLDEV_ATTR_DEV_NAME for the desired rdma device name to be created, RDMA_NLDEV_ATTR_LINK_TYPE for the "type" of link being added, and RDMA_NLDEV_ATTR_NDEV_NAME for the net_device interface to use for this link. The DELLINK message will contain the RDMA_NLDEV_ATTR_DEV_INDEX of the device to delete. Signed-off-by: Steve Wise Reviewed-by: Leon Romanovsky Reviewed-by: Michael J. Ruhl Signed-off-by: Jason Gunthorpe

RDMA/nldev: Provide parent IDs for PD, MR and QP objects

2019-02-19T17:13:39Z

PD, MR and QP objects have parents objects: contexts and PDs. The exposed parent IDs allow to correlate various objects and simplify debug investigation. Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe

RDMA/nldev: Share with user-space object IDs

2019-02-19T17:13:39Z

Give to the user space tools unique identifier for PD, MR, CQ and CM_ID objects, so they can be able to query on them with .doit callbacks. QP .doit is not supported yet, till all drivers will be updated to provide their LQPN to be equal to their restrack ID. Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe

RDMA/cma: Remove CM_ID statistics provided by rdma-cm module

2019-02-05T22:30:33Z

Netlink statistics exported by rdma-cm never had any working user space component published to the mailing list or to any open source project. Canvassing various proprietary users, and the original requester, we find that there are no real users of this interface. This patch simply removes all occurrences of RDMA CM netlink in favour of modern nldev implementation, which provides the same information and accompanied by widely used user space component. Signed-off-by: Leon Romanovsky Reviewed-by: Steve Wise Signed-off-by: Jason Gunthorpe