RDMA/nldev: Return context information

Extend the RDMA nldev return a context information, like ctx number and process ID that created that context. This functionality is helpful to find orphan contexts that are not closed for some reason. Sample output: $ rdma res show ctx dev ibp8s0f0 ctxn 0 pid 980 comm ibv_rc_pingpong dev ibp8s0f0 ctxn 1 pid 981 comm ibv_rc_pingpong dev ibp8s0f0 ctxn 2 pid 992 comm ibv_rc_pingpong dev ibp8s0f1 ctxn 0 pid 984 comm ibv_rc_pingpong dev ibp8s0f1 ctxn 1 pid 987 comm ibv_rc_pingpong $ rdma res show ctx dev ibp8s0f1 dev ibp8s0f1 ctxn 0 pid 984 comm ibv_rc_pingpong dev ibp8s0f1 ctxn 1 pid 987 comm ibv_rc_pingpong

Neta Ostrovsky committed 5 years ago

Commit 12ce2081 parent cb5cd0e2 files · +32 −0Browse files

Showing the changes to include/uapi (1 of 2 files). Show all

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include/uapi/rdma/rdma_netlink.h+5−0

@@ -293,6 +293,8 @@ enum rdma_nldev_command { · 292 unmodified lines
293	293
294	294	RDMA_NLDEV_CMD_RES_MR_GET_RAW,
295	295
	296	+ RDMA_NLDEV_CMD_RES_CTX_GET, /* can dump */
	297	+
296	298	RDMA_NLDEV_NUM_OPS
297	299	};
298	300
@@ -533,6 +535,9 @@ enum rdma_nldev_attr { · 234 unmodified lines
533	535
534	536	RDMA_NLDEV_ATTR_RES_RAW, /* binary */
535	537
	538	+ RDMA_NLDEV_ATTR_RES_CTX, /* nested table */
	539	+ RDMA_NLDEV_ATTR_RES_CTX_ENTRY, /* nested table */
	540	+
536	541	/*
537	542	* Always the end
538	543	*/