From 00313983cda6f37f747058e58c1cb8fba02bc134 Mon Sep 17 00:00:00 2001 From: Steve Wise Date: Thu, 1 Mar 2018 13:57:44 -0800 Subject: RDMA/nldev: provide detailed CM_ID information Implement RDMA nldev netlink interface to get detailed CM_ID information. Because cm_id's are attached to rdma devices in various work queue contexts, the pid and task information at restrak_add() time is sometimes not useful. For example, an nvme/f host connection cm_id ends up being bound to a device in a work queue context and the resulting pid at attach time no longer exists after connection setup. So instead we mark all cm_id's created via the rdma_ucm as "user", and all others as "kernel". This required tweaking the restrack code a little. It also required wrapping some rdma_cm functions to allow passing the module name string. Signed-off-by: Steve Wise Reviewed-by: Leon Romanovsky Signed-off-by: Doug Ledford --- include/uapi/rdma/rdma_netlink.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'include/uapi/rdma') diff --git a/include/uapi/rdma/rdma_netlink.h b/include/uapi/rdma/rdma_netlink.h index 4c77e2a7b07e..0399aed06548 100644 --- a/include/uapi/rdma/rdma_netlink.h +++ b/include/uapi/rdma/rdma_netlink.h @@ -238,6 +238,8 @@ enum rdma_nldev_command { RDMA_NLDEV_CMD_RES_QP_GET, /* can dump */ + RDMA_NLDEV_CMD_RES_CM_ID_GET, /* can dump */ + RDMA_NLDEV_NUM_OPS }; @@ -350,6 +352,18 @@ enum rdma_nldev_attr { */ RDMA_NLDEV_ATTR_RES_KERN_NAME, /* string */ + RDMA_NLDEV_ATTR_RES_CM_ID, /* nested table */ + RDMA_NLDEV_ATTR_RES_CM_ID_ENTRY, /* nested table */ + /* + * rdma_cm_id port space. + */ + RDMA_NLDEV_ATTR_RES_PS, /* u32 */ + /* + * Source and destination socket addresses + */ + RDMA_NLDEV_ATTR_RES_SRC_ADDR, /* __kernel_sockaddr_storage */ + RDMA_NLDEV_ATTR_RES_DST_ADDR, /* __kernel_sockaddr_storage */ + RDMA_NLDEV_ATTR_MAX }; #endif /* _UAPI_RDMA_NETLINK_H */ -- cgit v1.2.3