diff options
| author | Kaike Wan <kaike.wan@intel.com> | 2019-09-11 14:30:47 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-09-13 22:59:55 +0300 |
| commit | 7199435414868bd656284349edc1a1f528fe3662 (patch) | |
| tree | d8c6fc057fc6a60aa18dbe4fcfe630eb0302a601 /drivers/infiniband/hw/qib/qib_rc.c | |
| parent | c05fc15634f9316d493cddb32319c2711b0d8f59 (diff) | |
| download | linux-7199435414868bd656284349edc1a1f528fe3662.tar.xz | |
IB/{rdmavt, hfi1, qib}: Add a counter for credit waits
This patch adds a counter for credit waits to assist field debugging.
Link: https://lore.kernel.org/r/20190911113047.126040.10857.stgit@awfm-01.aw.intel.com
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/qib/qib_rc.c')
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_rc.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/drivers/infiniband/hw/qib/qib_rc.c b/drivers/infiniband/hw/qib/qib_rc.c index 1d5e2d4ee257..aaf7438258fa 100644 --- a/drivers/infiniband/hw/qib/qib_rc.c +++ b/drivers/infiniband/hw/qib/qib_rc.c @@ -313,11 +313,8 @@ int qib_make_rc_req(struct rvt_qp *qp, unsigned long *flags) case IB_WR_SEND: case IB_WR_SEND_WITH_IMM: /* If no credit, return. */ - if (!(qp->s_flags & RVT_S_UNLIMITED_CREDIT) && - rvt_cmp_msn(wqe->ssn, qp->s_lsn + 1) > 0) { - qp->s_flags |= RVT_S_WAIT_SSN_CREDIT; + if (!rvt_rc_credit_avail(qp, wqe)) goto bail; - } if (len > pmtu) { qp->s_state = OP(SEND_FIRST); len = pmtu; @@ -344,11 +341,8 @@ int qib_make_rc_req(struct rvt_qp *qp, unsigned long *flags) goto no_flow_control; case IB_WR_RDMA_WRITE_WITH_IMM: /* If no credit, return. */ - if (!(qp->s_flags & RVT_S_UNLIMITED_CREDIT) && - rvt_cmp_msn(wqe->ssn, qp->s_lsn + 1) > 0) { - qp->s_flags |= RVT_S_WAIT_SSN_CREDIT; + if (!rvt_rc_credit_avail(qp, wqe)) goto bail; - } no_flow_control: ohdr->u.rc.reth.vaddr = cpu_to_be64(wqe->rdma_wr.remote_addr); |