diff options
| author | Kaike Wan <kaike.wan@intel.com> | 2019-02-06 01:13:30 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2019-02-06 01:53:55 +0300 |
| commit | 9905bf06e890c2a845ac8fd19d7e6b8987ef8df6 (patch) | |
| tree | bd51db0197a3e149e26a47f84ebd09484346c6cd /drivers/infiniband/hw/hfi1/verbs.h | |
| parent | 1db21b50502856c1da5628e3644bd29710e928f0 (diff) | |
| download | linux-9905bf06e890c2a845ac8fd19d7e6b8987ef8df6.tar.xz | |
IB/hfi1: Add functions to receive TID RDMA READ response
This patch adds the functions to receive TID RDMA READ response. The TID
resource information in the KDETH packet header will direct the hardware
to deliver the packet payload to the user buffer automatically and the
software will handle the packet header for the last packet of a segment
as all other packet headers are suppressed by default. The TID entries
will be freed when all packets for a segment have been received. This
patch also adds the functions to handle KDETH eflag errors, including
flow sequence and generation errors, when a TID RDMA READ response
packet is received . The flow sequence error can be recovered by software
checking of the flow sequence and will disappear when the hardware flow
is programmed with a new generation number.
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/verbs.h')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/verbs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/verbs.h b/drivers/infiniband/hw/hfi1/verbs.h index 5e910c508360..c1574c0ed9a7 100644 --- a/drivers/infiniband/hw/hfi1/verbs.h +++ b/drivers/infiniband/hw/hfi1/verbs.h @@ -172,6 +172,8 @@ struct hfi1_qp_priv { unsigned long tid_timer_timeout_jiffies; /* For TID RDMA READ */ + u32 tid_r_reqs; /* Num of tid reads requested */ + u32 tid_r_comp; /* Num of tid reads completed */ u32 pending_tid_r_segs; /* Num of pending tid read segments */ u16 pkts_ps; /* packets per segment */ u8 timeout_shift; /* account for number of packets per segment */ |