list_del_init(&xprt->sc_dto_q);
spin_unlock_irqrestore(&dto_lock, flags);
- if (test_and_clear_bit(RDMAXPRT_RQ_PENDING, &xprt->sc_flags)) {
- ib_req_notify_cq(xprt->sc_rq_cq, IB_CQ_NEXT_COMP);
- rq_cq_reap(xprt);
- set_bit(XPT_DATA, &xprt->sc_xprt.xpt_flags);
- /*
- * If data arrived before established event,
- * don't enqueue. This defers RPC I/O until the
- * RDMA connection is complete.
- */
- if (!test_bit(RDMAXPRT_CONN_PENDING, &xprt->sc_flags))
- svc_xprt_enqueue(&xprt->sc_xprt);
- }
-
- if (test_and_clear_bit(RDMAXPRT_SQ_PENDING, &xprt->sc_flags)) {
- ib_req_notify_cq(xprt->sc_sq_cq, IB_CQ_NEXT_COMP);
- sq_cq_reap(xprt);
- }
+ rq_cq_reap(xprt);
+ sq_cq_reap(xprt);
svc_xprt_put(&xprt->sc_xprt);
spin_lock_irqsave(&dto_lock, flags);
struct ib_wc wc;
struct svc_rdma_op_ctxt *ctxt = NULL;
+ if (!test_and_clear_bit(RDMAXPRT_RQ_PENDING, &xprt->sc_flags))
+ return;
+
+ ib_req_notify_cq(xprt->sc_rq_cq, IB_CQ_NEXT_COMP);
atomic_inc(&rdma_stat_rq_poll);
spin_lock_bh(&xprt->sc_rq_dto_lock);
if (ctxt)
atomic_inc(&rdma_stat_rq_prod);
+
+ set_bit(XPT_DATA, &xprt->sc_xprt.xpt_flags);
+ /*
+ * If data arrived before established event,
+ * don't enqueue. This defers RPC I/O until the
+ * RDMA connection is complete.
+ */
+ if (!test_bit(RDMAXPRT_CONN_PENDING, &xprt->sc_flags))
+ svc_xprt_enqueue(&xprt->sc_xprt);
}
/*
struct ib_cq *cq = xprt->sc_sq_cq;
int ret;
+
+ if (!test_and_clear_bit(RDMAXPRT_SQ_PENDING, &xprt->sc_flags))
+ return;
+
+ ib_req_notify_cq(xprt->sc_sq_cq, IB_CQ_NEXT_COMP);
atomic_inc(&rdma_stat_sq_poll);
while ((ret = ib_poll_cq(cq, 1, &wc)) > 0) {
ctxt = (struct svc_rdma_op_ctxt *)(unsigned long)wc.wr_id;
recv_wr.wr_id = (u64)(unsigned long)ctxt;
ret = ib_post_recv(xprt->sc_qp, &recv_wr, &bad_recv_wr);
+ if (ret)
+ svc_rdma_put_context(ctxt, 1);
return ret;
}
if (xprt) {
set_bit(XPT_CLOSE, &xprt->xpt_flags);
svc_xprt_enqueue(xprt);
+ svc_xprt_put(xprt);
}
break;
case RDMA_CM_EVENT_DEVICE_REMOVAL:
return NULL;
}
-/*
- * Post an RQ WQE to the RQ when the rqst is being released. This
- * effectively returns an RQ credit to the client. The rq_xprt_ctxt
- * will be null if the request is deferred due to an RDMA_READ or the
- * transport had no data ready (EAGAIN). Note that an RPC deferred in
- * svc_process will still return the credit, this is because the data
- * is copied and no longer consume a WQE/WC.
- */
static void svc_rdma_release_rqst(struct svc_rqst *rqstp)
{
- int err;
- struct svcxprt_rdma *rdma =
- container_of(rqstp->rq_xprt, struct svcxprt_rdma, sc_xprt);
- if (rqstp->rq_xprt_ctxt) {
- BUG_ON(rqstp->rq_xprt_ctxt != rdma);
- err = svc_rdma_post_recv(rdma);
- if (err)
- dprintk("svcrdma: failed to post an RQ WQE error=%d\n",
- err);
- }
- rqstp->rq_xprt_ctxt = NULL;
}
/*
int ret;
if (test_bit(XPT_CLOSE, &xprt->sc_xprt.xpt_flags))
- return 0;
+ return -ENOTCONN;
BUG_ON(wr->send_flags != IB_SEND_SIGNALED);
BUG_ON(((struct svc_rdma_op_ctxt *)(unsigned long)wr->wr_id)->wr_op !=
if (xprt->sc_sq_depth == atomic_read(&xprt->sc_sq_count)) {
spin_unlock_bh(&xprt->sc_lock);
atomic_inc(&rdma_stat_sq_starve);
- /* See if we can reap some SQ WR */
+
+ /* See if we can opportunistically reap SQ WR to make room */
sq_cq_reap(xprt);
/* Wait until SQ WR available if SQ still full */
wait_event(xprt->sc_send_wait,
atomic_read(&xprt->sc_sq_count) <
xprt->sc_sq_depth);
+ if (test_bit(XPT_CLOSE, &xprt->sc_xprt.xpt_flags))
+ return 0;
continue;
}
/* Bumped used SQ WR count and post */