1/*
2 * Copyright (c) 2016  Intel Corporation.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#ifndef _UDP_STREAM_H_
17#define _UDP_STREAM_H_
18
19#include <rte_vect.h>
20#include <tle_dring.h>
21#include <tle_udp.h>
22#include <tle_event.h>
23
24#include "osdep.h"
25#include "ctx.h"
26#include "stream.h"
27
28#ifdef __cplusplus
29extern "C" {
30#endif
31
32union udph {
33	uint64_t raw;
34	struct {
35		union l4_ports ports;
36		uint16_t len;
37		uint16_t cksum;
38	};
39};
40
41struct tle_udp_stream {
42
43	struct tle_stream s;
44
45	struct {
46		struct rte_ring *q;
47		struct tle_event *ev;
48		struct tle_stream_cb cb;
49		rte_atomic32_t use;
50	} rx __rte_cache_aligned;
51
52	struct {
53		rte_atomic32_t use;
54		struct {
55			uint32_t nb_elem;  /* number of obects per drb. */
56			uint32_t nb_max;   /* number of drbs per stream. */
57			struct rte_ring *r;
58		} drb;
59		struct tle_event *ev;
60		struct tle_stream_cb cb;
61	} tx __rte_cache_aligned;
62
63	struct tle_udp_stream_param prm;
64} __rte_cache_aligned;
65
66#define UDP_STREAM(p)	\
67((struct tle_udp_stream *)((uintptr_t)(p) - offsetof(struct tle_udp_stream, s)))
68
69#define UDP_STREAM_TX_PENDING(s)	\
70	((s)->tx.drb.nb_max != rte_ring_count((s)->tx.drb.r))
71
72#define UDP_STREAM_TX_FINISHED(s)	\
73	((s)->tx.drb.nb_max == rte_ring_count((s)->tx.drb.r))
74
75#ifdef __cplusplus
76}
77#endif
78
79#endif /* _UDP_STREAM_H_ */
80