xref: /dpdk/examples/server_node_efd/shared/common.h (revision 7e06c0de1952d3109a5b0c4779d7e7d8059c9d78)
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2016-2017 Intel Corporation
3  */
4 
5 #ifndef _COMMON_H_
6 #define _COMMON_H_
7 
8 #include <rte_hash_crc.h>
9 #include <rte_hash.h>
10 
11 #define MAX_NODES             16
12 /*
13  * Shared port info, including statistics information for display by server.
14  * Structure will be put in a memzone.
15  * - All port id values share one cache line as this data will be read-only
16  * during operation.
17  * - All rx statistic values share cache lines, as this data is written only
18  * by the server process. (rare reads by stats display)
19  * - The tx statistics have values for all ports per cache line, but the stats
20  * themselves are written by the nodes, so we have a distinct set, on different
21  * cache lines for each node to use.
22  */
23 struct __rte_cache_aligned rx_stats {
24 	uint64_t rx[RTE_MAX_ETHPORTS];
25 };
26 
27 struct __rte_cache_aligned tx_stats {
28 	uint64_t tx[RTE_MAX_ETHPORTS];
29 	uint64_t tx_drop[RTE_MAX_ETHPORTS];
30 };
31 
32 struct __rte_cache_aligned filter_stats {
33 	uint64_t drop;
34 	uint64_t passed;
35 };
36 
37 struct shared_info {
38 	uint8_t num_nodes;
39 	uint16_t num_ports;
40 	uint32_t num_flows;
41 	uint16_t id[RTE_MAX_ETHPORTS];
42 	struct rx_stats rx_stats;
43 	struct tx_stats tx_stats[MAX_NODES];
44 	struct filter_stats filter_stats[MAX_NODES];
45 };
46 
47 /* define common names for structures shared between server and node */
48 #define MP_NODE_RXQ_NAME "MProc_Node_%u_RX"
49 #define PKTMBUF_POOL_NAME "MProc_pktmbuf_pool"
50 #define MZ_SHARED_INFO "MProc_shared_info"
51 
52 /*
53  * Given the rx queue name template above, get the queue name
54  */
55 static inline const char *
get_rx_queue_name(unsigned int id)56 get_rx_queue_name(unsigned int id)
57 {
58 	/*
59 	 * Buffer for return value. Size calculated by %u being replaced
60 	 * by maximum 3 digits (plus an extra byte for safety)
61 	 */
62 	static char buffer[sizeof(MP_NODE_RXQ_NAME) + 2];
63 
64 	snprintf(buffer, sizeof(buffer), MP_NODE_RXQ_NAME, id);
65 	return buffer;
66 }
67 
68 #define RTE_LOGTYPE_APP RTE_LOGTYPE_USER1
69 
70 #endif
71