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path: root/drivers/infiniband/core/cma_trace.h (follow)
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2020-08-24RDMA/core: Move the rdma_show_ib_cm_event() macroChuck Lever1-40/+0
Refactor: Make it globally available in the utilities header. Link: https://lore.kernel.org/r/159767239131.2968.9520990257041764685.stgit@klimt.1015granger.net Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-06-02RDMA/core: Move and rename trace_cm_id_create()Chuck Lever1-5/+15
The restrack ID for an rdma_cm_id is not assigned until it is associated with a device. Here's an example I captured while testing NFS/RDMA's support for DEVICE_REMOVAL. The new tracepoint name is "cm_id_attach". <...>-4261 [001] 366.581299: cm_event_handler: cm.id=0 src=0.0.0.0:45919 dst=192.168.2.55:20049 tos=0 ADDR_ERROR (1/-19) <...>-4261 [001] 366.581304: cm_event_done: cm.id=0 src=0.0.0.0:45919 dst=192.168.2.55:20049 tos=0 ADDR_ERROR consumer returns 0 <...>-1950 [000] 366.581309: cm_id_destroy: cm.id=0 src=0.0.0.0:45919 dst=192.168.2.55:20049 tos=0 <...>-7 [001] 369.589400: cm_event_handler: cm.id=0 src=0.0.0.0:49023 dst=192.168.2.55:20049 tos=0 ADDR_ERROR (1/-19) <...>-7 [001] 369.589404: cm_event_done: cm.id=0 src=0.0.0.0:49023 dst=192.168.2.55:20049 tos=0 ADDR_ERROR consumer returns 0 <...>-1950 [000] 369.589407: cm_id_destroy: cm.id=0 src=0.0.0.0:49023 dst=192.168.2.55:20049 tos=0 <...>-4261 [001] 372.597650: cm_id_attach: cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 device=mlx4_0 <...>-4261 [001] 372.597652: cm_event_handler: cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 tos=0 ADDR_RESOLVED (0/0) <...>-4261 [001] 372.597654: cm_event_done: cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 tos=0 ADDR_RESOLVED consumer returns 0 <...>-4261 [001] 372.597738: cm_event_handler: cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 tos=0 ROUTE_RESOLVED (2/0) <...>-4261 [001] 372.597740: cm_event_done: cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 tos=0 ROUTE_RESOLVED consumer returns 0 <...>-4691 [007] 372.600101: cm_qp_create: cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 tos=0 pd.id=2 qp_type=RC send_wr=4091 recv_wr=256 qp_num=530 rc=0 <...>-4691 [007] 372.600207: cm_send_req: cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 tos=0 qp_num=530 <...>-185 [002] 372.601212: cm_send_mra: cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 tos=0 <...>-185 [002] 372.601362: cm_send_rtu: cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 tos=0 <...>-185 [002] 372.601372: cm_event_handler: cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 tos=0 ESTABLISHED (9/0) <...>-185 [002] 372.601379: cm_event_done: cm.id=0 src=192.168.2.51:47492 dst=192.168.2.55:20049 tos=0 ESTABLISHED consumer returns 0 Fixes: ed999f820a6c ("RDMA/cma: Add trace points in RDMA Connection Manager") Link: https://lore.kernel.org/r/20200530174934.21362.56754.stgit@manet.1015granger.net Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-01-07RDMA/cma: Add trace points in RDMA Connection ManagerChuck Lever1-0/+391
Record state transitions as each connection is established. The IP address of both peers and the Type of Service is reported. These trace points are not in performance hot paths. Also, record each cm_event_handler call to ULPs. This eliminates the need for each ULP to add its own similar trace point in its CM event handler function. These new trace points appear in a new trace subsystem called "rdma_cma". Sample events: <...>-220 [004] 121.430733: cm_id_create: cm.id=0 <...>-472 [003] 121.430991: cm_event_handler: cm.id=0 src=192.168.2.51:35090 dst=192.168.2.55:20049 tos=0 ADDR_RESOLVED (0/0) <...>-472 [003] 121.430995: cm_event_done: cm.id=0 src=192.168.2.51:35090 dst=192.168.2.55:20049 tos=0 result=0 <...>-472 [003] 121.431172: cm_event_handler: cm.id=0 src=192.168.2.51:35090 dst=192.168.2.55:20049 tos=0 ROUTE_RESOLVED (2/0) <...>-472 [003] 121.431174: cm_event_done: cm.id=0 src=192.168.2.51:35090 dst=192.168.2.55:20049 tos=0 result=0 <...>-220 [004] 121.433480: cm_qp_create: cm.id=0 src=192.168.2.51:35090 dst=192.168.2.55:20049 tos=0 pd.id=2 qp_type=RC send_wr=4091 recv_wr=256 qp_num=521 rc=0 <...>-220 [004] 121.433577: cm_send_req: cm.id=0 src=192.168.2.51:35090 dst=192.168.2.55:20049 tos=0 qp_num=521 kworker/1:2-973 [001] 121.436190: cm_send_mra: cm.id=0 src=192.168.2.51:35090 dst=192.168.2.55:20049 tos=0 kworker/1:2-973 [001] 121.436340: cm_send_rtu: cm.id=0 src=192.168.2.51:35090 dst=192.168.2.55:20049 tos=0 kworker/1:2-973 [001] 121.436359: cm_event_handler: cm.id=0 src=192.168.2.51:35090 dst=192.168.2.55:20049 tos=0 ESTABLISHED (9/0) kworker/1:2-973 [001] 121.436365: cm_event_done: cm.id=0 src=192.168.2.51:35090 dst=192.168.2.55:20049 tos=0 result=0 <...>-1975 [005] 123.161954: cm_disconnect: cm.id=0 src=192.168.2.51:35090 dst=192.168.2.55:20049 tos=0 <...>-1975 [005] 123.161974: cm_sent_dreq: cm.id=0 src=192.168.2.51:35090 dst=192.168.2.55:20049 tos=0 <...>-220 [004] 123.162102: cm_disconnect: cm.id=0 src=192.168.2.51:35090 dst=192.168.2.55:20049 tos=0 kworker/0:1-13 [000] 123.162391: cm_event_handler: cm.id=0 src=192.168.2.51:35090 dst=192.168.2.55:20049 tos=0 DISCONNECTED (10/0) kworker/0:1-13 [000] 123.162393: cm_event_done: cm.id=0 src=192.168.2.51:35090 dst=192.168.2.55:20049 tos=0 result=0 <...>-220 [004] 123.164456: cm_qp_destroy: cm.id=0 src=192.168.2.51:35090 dst=192.168.2.55:20049 tos=0 qp_num=521 <...>-220 [004] 123.165290: cm_id_destroy: cm.id=0 src=192.168.2.51:35090 dst=192.168.2.55:20049 tos=0 Some features to note: - restracker ID of the rdma_cm_id is tagged on each trace event - The source and destination IP addresses and TOS are reported - CM event upcalls are shown with decoded event and status - CM state transitions are reported - rdma_cm_id lifetime events are captured - The latency of ULP CM event handlers is reported - Lifetime events of associated QPs are reported - Device removal and insertion is reported This patch is based on previous work by: Saeed Mahameed <saeedm@mellanox.com> Mukesh Kacker <mukesh.kacker@oracle.com> Ajaykumar Hotchandani <ajaykumar.hotchandani@oracle.com> Aron Silverton <aron.silverton@oracle.com> Avinash Repaka <avinash.repaka@oracle.com> Somasundaram Krishnasamy <somasundaram.krishnasamy@oracle.com> Link: https://lore.kernel.org/r/20191218201810.30584.3052.stgit@manet.1015granger.net Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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