ceph/src/dpdk/examples/ip_pipeline/pipeline/pipeline_common_be.h

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #ifndef __INCLUDE_PIPELINE_COMMON_BE_H__
  35 #define __INCLUDE_PIPELINE_COMMON_BE_H__
  36
  37 #include <rte_common.h>
  38 #include <rte_ring.h>
  39 #include <rte_pipeline.h>
  40
  41 #include "pipeline_be.h"
  42
  43 struct pipeline;
  44
  45 enum pipeline_msg_req_type {
  46         PIPELINE_MSG_REQ_PING = 0,
  47         PIPELINE_MSG_REQ_STATS_PORT_IN,
  48         PIPELINE_MSG_REQ_STATS_PORT_OUT,
  49         PIPELINE_MSG_REQ_STATS_TABLE,
  50         PIPELINE_MSG_REQ_PORT_IN_ENABLE,
  51         PIPELINE_MSG_REQ_PORT_IN_DISABLE,
  52         PIPELINE_MSG_REQ_CUSTOM,
  53         PIPELINE_MSG_REQS
  54 };
  55
  56 typedef void *(*pipeline_msg_req_handler)(struct pipeline *p, void *msg);
  57
  58 struct pipeline {
  59         struct rte_pipeline *p;
  60         uint32_t port_in_id[PIPELINE_MAX_PORT_IN];
  61         uint32_t port_out_id[PIPELINE_MAX_PORT_OUT];
  62         uint32_t table_id[PIPELINE_MAX_TABLES];
  63         struct rte_ring *msgq_in[PIPELINE_MAX_MSGQ_IN];
  64         struct rte_ring *msgq_out[PIPELINE_MAX_MSGQ_OUT];
  65
  66         uint32_t n_ports_in;
  67         uint32_t n_ports_out;
  68         uint32_t n_tables;
  69         uint32_t n_msgq;
  70
  71         pipeline_msg_req_handler handlers[PIPELINE_MSG_REQS];
  72         char name[PIPELINE_NAME_SIZE];
  73         uint32_t log_level;
  74 };
  75
  76 enum pipeline_log_level {
  77         PIPELINE_LOG_LEVEL_HIGH = 1,
  78         PIPELINE_LOG_LEVEL_LOW,
  79         PIPELINE_LOG_LEVELS
  80 };
  81
  82 #define PLOG(p, level, fmt, ...)                                        \
  83 do {                                                                    \
  84         if (p->log_level >= PIPELINE_LOG_LEVEL_ ## level)               \
  85                 fprintf(stdout, "[%s] " fmt "\n", p->name, ## __VA_ARGS__);\
  86 } while (0)
  87
  88 static inline void *
  89 pipeline_msg_recv(struct pipeline *p,
  90         uint32_t msgq_id)
  91 {
  92         struct rte_ring *r = p->msgq_in[msgq_id];
  93         void *msg;
  94         int status = rte_ring_sc_dequeue(r, &msg);
  95
  96         if (status != 0)
  97                 return NULL;
  98
  99         return msg;
 100 }
 101
 102 static inline void
 103 pipeline_msg_send(struct pipeline *p,
 104         uint32_t msgq_id,
 105         void *msg)
 106 {
 107         struct rte_ring *r = p->msgq_out[msgq_id];
 108         int status;
 109
 110         do {
 111                 status = rte_ring_sp_enqueue(r, msg);
 112         } while (status == -ENOBUFS);
 113 }
 114
 115 struct pipeline_msg_req {
 116         enum pipeline_msg_req_type type;
 117 };
 118
 119 struct pipeline_stats_msg_req {
 120         enum pipeline_msg_req_type type;
 121         uint32_t id;
 122 };
 123
 124 struct pipeline_port_in_msg_req {
 125         enum pipeline_msg_req_type type;
 126         uint32_t port_id;
 127 };
 128
 129 struct pipeline_custom_msg_req {
 130         enum pipeline_msg_req_type type;
 131         uint32_t subtype;
 132 };
 133
 134 struct pipeline_msg_rsp {
 135         int status;
 136 };
 137
 138 struct pipeline_stats_port_in_msg_rsp {
 139         int status;
 140         struct rte_pipeline_port_in_stats stats;
 141 };
 142
 143 struct pipeline_stats_port_out_msg_rsp {
 144         int status;
 145         struct rte_pipeline_port_out_stats stats;
 146 };
 147
 148 struct pipeline_stats_table_msg_rsp {
 149         int status;
 150         struct rte_pipeline_table_stats stats;
 151 };
 152
 153 void *pipeline_msg_req_ping_handler(struct pipeline *p, void *msg);
 154 void *pipeline_msg_req_stats_port_in_handler(struct pipeline *p, void *msg);
 155 void *pipeline_msg_req_stats_port_out_handler(struct pipeline *p, void *msg);
 156 void *pipeline_msg_req_stats_table_handler(struct pipeline *p, void *msg);
 157 void *pipeline_msg_req_port_in_enable_handler(struct pipeline *p, void *msg);
 158 void *pipeline_msg_req_port_in_disable_handler(struct pipeline *p, void *msg);
 159 void *pipeline_msg_req_invalid_handler(struct pipeline *p, void *msg);
 160
 161 int pipeline_msg_req_handle(struct pipeline *p);
 162
 163 #endif