Lines Matching full:requests

141  * requests are pushed on to the ring and responses taken off it.
144  * requests are taken off the ring and responses put on.
149  * outstanding requests.
187 /* Number of free requests (for use on front side only). */
220  * obtaining the number of unconsumed responses/requests.
259 /* Ill-behaved frontend determination: Can there be this many requests? */
268     xen_wmb(); /* back sees requests /before/ updated producer index */ \
280  * When queueing requests or responses on a shared ring, it may not always be
281  * necessary to notify the remote end. For example, if requests are in flight
282  * in a backend, the front may be able to queue further requests without
283  * notifying the back (if the back checks for new requests when it queues
286  * When enqueuing requests or responses:
288  *  Use RING_PUSH_{REQUESTS,RESPONSES}_AND_CHECK_NOTIFY(). The second argument
292  * After dequeuing requests or responses (before sleeping the connection):
310     xen_wmb(); /* back sees requests /before/ updated producer index */ \
312     xen_mb(); /* back sees new requests /before/ we check req_event */  \