From: Daniel Jurgens Date: Tue, 14 Nov 2017 12:51:58 +0000 (+0200) Subject: IB/cm: Add debug prints to ib_cm X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=119bf81793ea952fcd46e44378ff3c75562d16f8;p=openwrt%2Fstaging%2Fblogic.git IB/cm: Add debug prints to ib_cm Add debug prints to the error paths in the connection manager control flows, to help debug connection management problems. Signed-off-by: Daniel Jurgens Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index dbbebbb5c315..d3aab237f8c6 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -1875,6 +1875,8 @@ static int cm_req_handler(struct cm_work *work) listen_cm_id_priv = cm_match_req(work, cm_id_priv); if (!listen_cm_id_priv) { + pr_debug("%s: local_id %d, no listen_cm_id_priv\n", __func__, + be32_to_cpu(cm_id->local_id)); ret = -EINVAL; goto free_timeinfo; } @@ -2032,6 +2034,8 @@ int ib_send_cm_rep(struct ib_cm_id *cm_id, spin_lock_irqsave(&cm_id_priv->lock, flags); if (cm_id->state != IB_CM_REQ_RCVD && cm_id->state != IB_CM_MRA_REQ_SENT) { + pr_debug("%s: local_comm_id %d, cm_id->state: %d\n", __func__, + be32_to_cpu(cm_id_priv->id.local_id), cm_id->state); ret = -EINVAL; goto out; } @@ -2098,6 +2102,8 @@ int ib_send_cm_rtu(struct ib_cm_id *cm_id, spin_lock_irqsave(&cm_id_priv->lock, flags); if (cm_id->state != IB_CM_REP_RCVD && cm_id->state != IB_CM_MRA_REP_SENT) { + pr_debug("%s: local_id %d, cm_id->state %d\n", __func__, + be32_to_cpu(cm_id->local_id), cm_id->state); ret = -EINVAL; goto error; } @@ -2205,6 +2211,8 @@ static int cm_rep_handler(struct cm_work *work) cm_id_priv = cm_acquire_id(rep_msg->remote_comm_id, 0); if (!cm_id_priv) { cm_dup_rep_handler(work); + pr_debug("%s: remote_comm_id %d, no cm_id_priv\n", __func__, + be32_to_cpu(rep_msg->remote_comm_id)); return -EINVAL; } @@ -2218,6 +2226,10 @@ static int cm_rep_handler(struct cm_work *work) default: spin_unlock_irq(&cm_id_priv->lock); ret = -EINVAL; + pr_debug("%s: cm_id_priv->id.state: %d, local_comm_id %d, remote_comm_id %d\n", + __func__, cm_id_priv->id.state, + be32_to_cpu(rep_msg->local_comm_id), + be32_to_cpu(rep_msg->remote_comm_id)); goto error; } @@ -2231,6 +2243,8 @@ static int cm_rep_handler(struct cm_work *work) spin_unlock(&cm.lock); spin_unlock_irq(&cm_id_priv->lock); ret = -EINVAL; + pr_debug("%s: Failed to insert remote id %d\n", __func__, + be32_to_cpu(rep_msg->remote_comm_id)); goto error; } /* Check for a stale connection. */ @@ -2248,6 +2262,10 @@ static int cm_rep_handler(struct cm_work *work) IB_CM_REJ_STALE_CONN, CM_MSG_RESPONSE_REP, NULL, 0); ret = -EINVAL; + pr_debug("%s: Stale connection. local_comm_id %d, remote_comm_id %d\n", + __func__, be32_to_cpu(rep_msg->local_comm_id), + be32_to_cpu(rep_msg->remote_comm_id)); + if (cur_cm_id_priv) { cm_id = &cur_cm_id_priv->id; ib_send_cm_dreq(cm_id, NULL, 0); @@ -2394,6 +2412,8 @@ int ib_send_cm_dreq(struct ib_cm_id *cm_id, cm_id_priv = container_of(cm_id, struct cm_id_private, id); spin_lock_irqsave(&cm_id_priv->lock, flags); if (cm_id->state != IB_CM_ESTABLISHED) { + pr_debug("%s: local_id %d, cm_id->state: %d\n", __func__, + be32_to_cpu(cm_id->local_id), cm_id->state); ret = -EINVAL; goto out; } @@ -2463,6 +2483,8 @@ int ib_send_cm_drep(struct ib_cm_id *cm_id, if (cm_id->state != IB_CM_DREQ_RCVD) { spin_unlock_irqrestore(&cm_id_priv->lock, flags); kfree(data); + pr_debug("%s: local_id %d, cm_idcm_id->state(%d) != IB_CM_DREQ_RCVD\n", + __func__, be32_to_cpu(cm_id->local_id), cm_id->state); return -EINVAL; } @@ -2528,6 +2550,9 @@ static int cm_dreq_handler(struct cm_work *work) atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. counter[CM_DREQ_COUNTER]); cm_issue_drep(work->port, work->mad_recv_wc); + pr_debug("%s: no cm_id_priv, local_comm_id %d, remote_comm_id %d\n", + __func__, be32_to_cpu(dreq_msg->local_comm_id), + be32_to_cpu(dreq_msg->remote_comm_id)); return -EINVAL; } @@ -2570,6 +2595,9 @@ static int cm_dreq_handler(struct cm_work *work) counter[CM_DREQ_COUNTER]); goto unlock; default: + pr_debug("%s: local_id %d, cm_id_priv->id.state: %d\n", + __func__, be32_to_cpu(cm_id_priv->id.local_id), + cm_id_priv->id.state); goto unlock; } cm_id_priv->id.state = IB_CM_DREQ_RCVD; @@ -2673,6 +2701,8 @@ int ib_send_cm_rej(struct ib_cm_id *cm_id, cm_enter_timewait(cm_id_priv); break; default: + pr_debug("%s: local_id %d, cm_id->state: %d\n", __func__, + be32_to_cpu(cm_id_priv->id.local_id), cm_id->state); ret = -EINVAL; goto out; } @@ -2783,6 +2813,9 @@ static int cm_rej_handler(struct cm_work *work) /* fall through */ default: spin_unlock_irq(&cm_id_priv->lock); + pr_debug("%s: local_id %d, cm_id_priv->id.state: %d\n", + __func__, be32_to_cpu(cm_id_priv->id.local_id), + cm_id_priv->id.state); ret = -EINVAL; goto out; } @@ -2846,6 +2879,9 @@ int ib_send_cm_mra(struct ib_cm_id *cm_id, } /* fall through */ default: + pr_debug("%s: local_id %d, cm_id_priv->id.state: %d\n", + __func__, be32_to_cpu(cm_id_priv->id.local_id), + cm_id_priv->id.state); ret = -EINVAL; goto error1; } @@ -2947,6 +2983,9 @@ static int cm_mra_handler(struct cm_work *work) counter[CM_MRA_COUNTER]); /* fall through */ default: + pr_debug("%s local_id %d, cm_id_priv->id.state: %d\n", + __func__, be32_to_cpu(cm_id_priv->id.local_id), + cm_id_priv->id.state); goto out; } @@ -3727,6 +3766,7 @@ static void cm_work_handler(struct work_struct *_work) ret = cm_timewait_handler(work); break; default: + pr_debug("cm_event.event: 0x%x\n", work->cm_event.event); ret = -EINVAL; break; } @@ -3762,6 +3802,8 @@ static int cm_establish(struct ib_cm_id *cm_id) ret = -EISCONN; break; default: + pr_debug("%s: local_id %d, cm_id->state: %d\n", __func__, + be32_to_cpu(cm_id->local_id), cm_id->state); ret = -EINVAL; break; } @@ -3959,6 +4001,9 @@ static int cm_init_qp_init_attr(struct cm_id_private *cm_id_priv, ret = 0; break; default: + pr_debug("%s: local_id %d, cm_id_priv->id.state: %d\n", + __func__, be32_to_cpu(cm_id_priv->id.local_id), + cm_id_priv->id.state); ret = -EINVAL; break; } @@ -4006,6 +4051,9 @@ static int cm_init_qp_rtr_attr(struct cm_id_private *cm_id_priv, ret = 0; break; default: + pr_debug("%s: local_id %d, cm_id_priv->id.state: %d\n", + __func__, be32_to_cpu(cm_id_priv->id.local_id), + cm_id_priv->id.state); ret = -EINVAL; break; } @@ -4065,6 +4113,9 @@ static int cm_init_qp_rts_attr(struct cm_id_private *cm_id_priv, ret = 0; break; default: + pr_debug("%s: local_id %d, cm_id_priv->id.state: %d\n", + __func__, be32_to_cpu(cm_id_priv->id.local_id), + cm_id_priv->id.state); ret = -EINVAL; break; }