/*
* Handle receive completions.
*
* It is reentrant but processes single events in order to maintain
* ordering of receives to keep server credits.
*
* It is the responsibility of the scheduled tasklet to return
* recv buffers to the pool. NOTE: this affects synchronization of
* connection shutdown. That is, the structures required for
* the completion of the reply handler must remain intact until
* all memory has been reclaimed.
*/
static void
rpcrdma_recvcq_upcall(struct ib_cq *cq, void *cq_context)
{
struct rpcrdma_ep *ep = (struct rpcrdma_ep *)cq_context;
int rc;
rc = rpcrdma_recvcq_poll(cq, ep);
if (rc) {
dprintk("RPC: %s: ib_poll_cq failed: %i\n",
__func__, rc);
return;
}
rc = ib_req_notify_cq(cq,
IB_CQ_NEXT_COMP | IB_CQ_REPORT_MISSED_EVENTS);
if (rc == 0)
return;
if (rc < 0) {
dprintk("RPC: %s: ib_req_notify_cq failed: %i\n",
__func__, rc);
return;
}
rpcrdma_recvcq_poll(cq, ep);
}
/* Handle provider receive completion upcalls.
*/
static void
rpcrdma_recvcq_upcall(struct ib_cq *cq, void *cq_context)
{
do {
rpcrdma_recvcq_poll(cq);
} while (ib_req_notify_cq(cq, IB_CQ_NEXT_COMP |
IB_CQ_REPORT_MISSED_EVENTS) > 0);
}
