diff options
| author | Kaike Wan <kaike.wan@intel.com> | 2019-01-24 06:32:44 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2019-02-06 01:53:56 +0300 |
| commit | 3ce5daa2c1798a530db9a01cd35122e0958538ad (patch) | |
| tree | 2b516e3b90cf2ec0eb03b160a8b498486599b848 /drivers/infiniband/hw/hfi1/rc.c | |
| parent | f1ab4efa6d32e98f9e604c9dde57cfe7b89a6c07 (diff) | |
| download | linux-3ce5daa2c1798a530db9a01cd35122e0958538ad.tar.xz | |
IB/hfi1: Add static trace for TID RDMA READ protocol
This patch makes the following changes to the static trace:
1. Adds the decoding of TID RDMA READ packets in IB header trace;
2. Tracks qpriv->s_flags and iow_flags in qpsleepwakeup trace;
3. Adds a new event to track RC ACK receiving;
4. Adds trace events for various stages of the TID RDMA READ
protocol. These events provide a fine-grained control for monitoring
and debugging the hfi1 driver in the filed.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/rc.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/rc.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/rc.c b/drivers/infiniband/hw/hfi1/rc.c index 349751cb8b47..6c9ef572fc69 100644 --- a/drivers/infiniband/hw/hfi1/rc.c +++ b/drivers/infiniband/hw/hfi1/rc.c @@ -121,6 +121,7 @@ static int make_rc_ack(struct hfi1_ibdev *dev, struct rvt_qp *qp, bool last_pkt; u32 delta; + trace_hfi1_rsp_make_rc_ack(qp, 0); lockdep_assert_held(&qp->s_lock); /* Don't send an ACK if we aren't supposed to. */ if (!(ib_rvt_state_ops[qp->state] & RVT_PROCESS_RECV_OK)) @@ -349,6 +350,7 @@ int hfi1_make_rc_req(struct rvt_qp *qp, struct hfi1_pkt_state *ps) int delta; struct tid_rdma_flow *flow = NULL; + trace_hfi1_sender_make_rc_req(qp); lockdep_assert_held(&qp->s_lock); ps->s_txreq = get_txreq(ps->dev, qp); if (!ps->s_txreq) @@ -596,8 +598,13 @@ no_flow_control: break; case IB_WR_TID_RDMA_READ: + trace_hfi1_tid_read_sender_make_req(qp, newreq); wpriv = wqe->priv; req = wqe_to_tid_req(wqe); + trace_hfi1_tid_req_make_req_read(qp, newreq, + wqe->wr.opcode, + wqe->psn, wqe->lpsn, + req); delta = cmp_psn(qp->s_psn, wqe->psn); /* @@ -892,6 +899,8 @@ no_flow_control: ++qp->s_cur == qp->s_size) qp->s_cur = 0; qp->s_psn = req->s_next_psn; + trace_hfi1_tid_req_make_req_read(qp, 0, wqe->wr.opcode, + wqe->psn, wqe->lpsn, req); break; case TID_OP(READ_REQ): req = wqe_to_tid_req(wqe); @@ -933,6 +942,8 @@ no_flow_control: ++qp->s_cur == qp->s_size) qp->s_cur = 0; qp->s_psn = req->s_next_psn; + trace_hfi1_tid_req_make_req_read(qp, 0, wqe->wr.opcode, + wqe->psn, wqe->lpsn, req); break; } qp->s_sending_hpsn = bth2; @@ -1341,6 +1352,7 @@ done: (cmp_psn(qp->s_sending_psn, qp->s_sending_hpsn) <= 0)) qp->s_flags |= RVT_S_WAIT_PSN; qp->s_flags &= ~HFI1_S_AHG_VALID; + trace_hfi1_sender_reset_psn(qp); } /* @@ -1355,6 +1367,7 @@ void hfi1_restart_rc(struct rvt_qp *qp, u32 psn, int wait) lockdep_assert_held(&qp->r_lock); lockdep_assert_held(&qp->s_lock); + trace_hfi1_sender_restart_rc(qp); if (qp->s_retry == 0) { if (qp->s_mig_state == IB_MIG_ARMED) { hfi1_migrate_qp(qp); @@ -1558,6 +1571,7 @@ struct rvt_swqe *do_rc_completion(struct rvt_qp *qp, * completion if the SWQE is being resent until the send * is finished. */ + trace_hfi1_rc_completion(qp, wqe->lpsn); if (cmp_psn(wqe->lpsn, qp->s_sending_psn) < 0 || cmp_psn(qp->s_sending_psn, qp->s_sending_hpsn) > 0) { u32 s_last; @@ -1742,6 +1756,8 @@ int do_rc_ack(struct rvt_qp *qp, u32 aeth, u32 psn, int opcode, break; } + trace_hfi1_rc_ack_do(qp, aeth, psn, wqe); + trace_hfi1_sender_do_rc_ack(qp); switch (aeth >> IB_AETH_NAK_SHIFT) { case 0: /* ACK */ this_cpu_inc(*ibp->rvp.rc_acks); |