diff options
author | Chuck Lever <chuck.lever@oracle.com> | 2020-08-17 16:53:22 +0300 |
---|---|---|
committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-08-25 01:41:41 +0300 |
commit | 8dc105befe16b6504ecc17a235b3c22932fa33dc (patch) | |
tree | 7cba20b90f825e46a241f83280d3ca0c6ea4dc5c /drivers/infiniband/core/cm.c | |
parent | 75874b3d50717ec6a821cf4de4284822204a3574 (diff) | |
download | linux-8dc105befe16b6504ecc17a235b3c22932fa33dc.tar.xz |
RDMA/cm: Add tracepoints to track MAD send operations
Surface the operation of MAD exchanges during connection
establishment. Some samples:
[root@klimt ~]# trace-cmd report -F ib_cma
cpus=4
kworker/0:4-123 [000] 60.677388: icm_send_rep: local_id=1965336542 remote_id=1096195961 state=REQ_RCVD lap_state=LAP_UNINIT
kworker/u8:11-391 [002] 60.678808: icm_send_req: local_id=1982113758 remote_id=0 state=IDLE lap_state=LAP_UNINIT
kworker/0:4-123 [000] 60.679652: icm_send_rtu: local_id=1982113758 remote_id=1079418745 state=REP_RCVD lap_state=LAP_UNINIT
nfsd-1954 [001] 60.691350: icm_send_rep: local_id=1998890974 remote_id=1129750393 state=MRA_REQ_SENT lap_state=LAP_UNINIT
nfsd-1954 [003] 62.017931: icm_send_drep: local_id=1998890974 remote_id=1129750393 state=TIMEWAIT lap_state=LAP_UNINIT
Link: https://lore.kernel.org/r/159767240197.2968.12048458026453596018.stgit@klimt.1015granger.net
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/core/cm.c')
-rw-r--r-- | drivers/infiniband/core/cm.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index 478be8481e8e..8fe141727bea 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -1563,6 +1563,7 @@ int ib_send_cm_req(struct ib_cm_id *cm_id, cm_id_priv->local_qpn = cpu_to_be32(IBA_GET(CM_REQ_LOCAL_QPN, req_msg)); cm_id_priv->rq_psn = cpu_to_be32(IBA_GET(CM_REQ_STARTING_PSN, req_msg)); + trace_icm_send_req(&cm_id_priv->id); spin_lock_irqsave(&cm_id_priv->lock, flags); ret = ib_post_send_mad(cm_id_priv->msg, NULL); if (ret) { @@ -1610,6 +1611,9 @@ static int cm_issue_rej(struct cm_port *port, IBA_SET_MEM(CM_REJ_ARI, rej_msg, ari, ari_length); } + trace_icm_issue_rej( + IBA_GET(CM_REJ_LOCAL_COMM_ID, rcv_msg), + IBA_GET(CM_REJ_REMOTE_COMM_ID, rcv_msg)); ret = ib_post_send_mad(msg, NULL); if (ret) cm_free_msg(msg); @@ -1961,6 +1965,7 @@ static void cm_dup_req_handler(struct cm_work *work, } spin_unlock_irq(&cm_id_priv->lock); + trace_icm_send_dup_req(&cm_id_priv->id); ret = ib_post_send_mad(msg, NULL); if (ret) goto free; @@ -2287,6 +2292,7 @@ int ib_send_cm_rep(struct ib_cm_id *cm_id, msg->timeout_ms = cm_id_priv->timeout_ms; msg->context[1] = (void *) (unsigned long) IB_CM_REP_SENT; + trace_icm_send_rep(cm_id); ret = ib_post_send_mad(msg, NULL); if (ret) { spin_unlock_irqrestore(&cm_id_priv->lock, flags); @@ -2358,6 +2364,7 @@ int ib_send_cm_rtu(struct ib_cm_id *cm_id, cm_format_rtu((struct cm_rtu_msg *) msg->mad, cm_id_priv, private_data, private_data_len); + trace_icm_send_rtu(cm_id); ret = ib_post_send_mad(msg, NULL); if (ret) { spin_unlock_irqrestore(&cm_id_priv->lock, flags); @@ -2439,6 +2446,7 @@ static void cm_dup_rep_handler(struct cm_work *work) goto unlock; spin_unlock_irq(&cm_id_priv->lock); + trace_icm_send_dup_rep(&cm_id_priv->id); ret = ib_post_send_mad(msg, NULL); if (ret) goto free; @@ -2660,6 +2668,7 @@ static int cm_send_dreq_locked(struct cm_id_private *cm_id_priv, msg->timeout_ms = cm_id_priv->timeout_ms; msg->context[1] = (void *) (unsigned long) IB_CM_DREQ_SENT; + trace_icm_send_dreq(&cm_id_priv->id); ret = ib_post_send_mad(msg, NULL); if (ret) { cm_enter_timewait(cm_id_priv); @@ -2730,6 +2739,7 @@ static int cm_send_drep_locked(struct cm_id_private *cm_id_priv, cm_format_drep((struct cm_drep_msg *) msg->mad, cm_id_priv, private_data, private_data_len); + trace_icm_send_drep(&cm_id_priv->id); ret = ib_post_send_mad(msg, NULL); if (ret) { cm_free_msg(msg); @@ -2779,6 +2789,9 @@ static int cm_issue_drep(struct cm_port *port, IBA_SET(CM_DREP_LOCAL_COMM_ID, drep_msg, IBA_GET(CM_DREQ_REMOTE_COMM_ID, dreq_msg)); + trace_icm_issue_drep( + IBA_GET(CM_DREQ_LOCAL_COMM_ID, dreq_msg), + IBA_GET(CM_DREQ_REMOTE_COMM_ID, dreq_msg)); ret = ib_post_send_mad(msg, NULL); if (ret) cm_free_msg(msg); @@ -2936,6 +2949,7 @@ static int cm_send_rej_locked(struct cm_id_private *cm_id_priv, return -EINVAL; } + trace_icm_send_rej(&cm_id_priv->id, reason); ret = ib_post_send_mad(msg, NULL); if (ret) { cm_free_msg(msg); @@ -3114,6 +3128,7 @@ int ib_send_cm_mra(struct ib_cm_id *cm_id, cm_format_mra((struct cm_mra_msg *) msg->mad, cm_id_priv, msg_response, service_timeout, private_data, private_data_len); + trace_icm_send_mra(cm_id); ret = ib_post_send_mad(msg, NULL); if (ret) goto error2; @@ -3484,10 +3499,12 @@ int ib_send_cm_sidr_req(struct ib_cm_id *cm_id, msg->context[1] = (void *) (unsigned long) IB_CM_SIDR_REQ_SENT; spin_lock_irqsave(&cm_id_priv->lock, flags); - if (cm_id->state == IB_CM_IDLE) + if (cm_id->state == IB_CM_IDLE) { + trace_icm_send_sidr_req(&cm_id_priv->id); ret = ib_post_send_mad(msg, NULL); - else + } else { ret = -EINVAL; + } if (ret) { spin_unlock_irqrestore(&cm_id_priv->lock, flags); @@ -3649,6 +3666,7 @@ static int cm_send_sidr_rep_locked(struct cm_id_private *cm_id_priv, cm_format_sidr_rep((struct cm_sidr_rep_msg *) msg->mad, cm_id_priv, param); + trace_icm_send_sidr_rep(&cm_id_priv->id); ret = ib_post_send_mad(msg, NULL); if (ret) { cm_free_msg(msg); |