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RDMA/nldev: Provide detailed QP information

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Implement RDMA nldev netlink interface to get detailed information on each
QP in the system. This includes the owning process or kernel ULP and
detailed information from the qp_attrs.

Currently only the dumpit variant is implemented.

Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Leon Romanovsky 2018-01-28 11:17:25 +02:00 • committed by Jason Gunthorpe
commit b5fa635aab
2 changed files with 269 additions and 0 deletions
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42
include/uapi/rdma/rdma_netlink.h
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@ -238,6 +238,8 @@ enum rdma_nldev_command {
RDMA_NLDEV_CMD_RES_GET, /* can dump */
RDMA_NLDEV_CMD_RES_QP_GET, /* can dump */
RDMA_NLDEV_NUM_OPS
};
@ -310,6 +312,46 @@ enum rdma_nldev_attr {
RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_NAME, /* string */
RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_CURR, /* u64 */
RDMA_NLDEV_ATTR_RES_QP, /* nested table */
RDMA_NLDEV_ATTR_RES_QP_ENTRY, /* nested table */
/*
* Local QPN
*/
RDMA_NLDEV_ATTR_RES_LQPN, /* u32 */
/*
* Remote QPN,
* Applicable for RC and UC only IBTA 11.2.5.3 QUERY QUEUE PAIR
*/
RDMA_NLDEV_ATTR_RES_RQPN, /* u32 */
/*
* Receive Queue PSN,
* Applicable for RC and UC only 11.2.5.3 QUERY QUEUE PAIR
*/
RDMA_NLDEV_ATTR_RES_RQ_PSN, /* u32 */
/*
* Send Queue PSN
*/
RDMA_NLDEV_ATTR_RES_SQ_PSN, /* u32 */
RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE, /* u8 */
/*
* QP types as visible to RDMA/core, the reserved QPT
* are not exported through this interface.
*/
RDMA_NLDEV_ATTR_RES_TYPE, /* u8 */
RDMA_NLDEV_ATTR_RES_STATE, /* u8 */
/*
* Process ID which created object,
* in case of kernel origin, PID won't exist.
*/
RDMA_NLDEV_ATTR_RES_PID, /* u32 */
/*
* The name of process created following resource.
* It will exist only for kernel objects.
* For user created objects, the user is supposed
* to read /proc/PID/comm file.
*/
RDMA_NLDEV_ATTR_RES_KERN_NAME, /* string */
RDMA_NLDEV_ATTR_MAX
};
#endif /* _UAPI_RDMA_NETLINK_H */