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IB/rdmavt, IB/hfi1, IB/qib: Correct ack count for passive (RTR) QPs 

The send complete for RC QPs mismanages the ack count when the
responder side is only in RTR.

A QP in that state cannot send requests, but it can be the target
for operations that elicit responses.

Adjust the RC completion logic to correct the count maintenance
by reflecting RECV_OK in a new state test.

Reviewed-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: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Mike Marciniszyn 2017-02-08 05:27:49 -08:00 committed by Doug Ledford
parent 3fc4a0906f
commit f9215b5e53
3 changed files with 4 additions and 2 deletions
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2
drivers/infiniband/hw/hfi1/rc.c
View File

@ -990,7 +990,7 @@ void hfi1_rc_send_complete(struct rvt_qp *qp, struct ib_header *hdr)
u32 psn;
lockdep_assert_held(&qp->s_lock);
if (!(ib_rvt_state_ops[qp->state] & RVT_PROCESS_OR_FLUSH_SEND))
if (!(ib_rvt_state_ops[qp->state] & RVT_SEND_OR_FLUSH_OR_RECV_OK))
return;
/* Find out where the BTH is */

2
drivers/infiniband/hw/qib/qib_rc.c
View File

@ -895,7 +895,7 @@ void qib_rc_send_complete(struct rvt_qp *qp, struct ib_header *hdr)
u32 opcode;
u32 psn;
if (!(ib_rvt_state_ops[qp->state] & RVT_PROCESS_OR_FLUSH_SEND))
if (!(ib_rvt_state_ops[qp->state] & RVT_SEND_OR_FLUSH_OR_RECV_OK))
return;
/* Find out where the BTH is */

2
include/rdma/rdmavt_qp.h
View File

@ -144,6 +144,8 @@
#define RVT_FLUSH_RECV 0x40
#define RVT_PROCESS_OR_FLUSH_SEND \
(RVT_PROCESS_SEND_OK | RVT_FLUSH_SEND)
#define RVT_SEND_OR_FLUSH_OR_RECV_OK \
(RVT_PROCESS_SEND_OK | RVT_FLUSH_SEND | RVT_PROCESS_RECV_OK)
/*
* Internal send flags