ceph/src/seastar/dpdk/examples/server_node_efd/shared/common.h

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2016-2017 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 _COMMON_H_
  35 #define _COMMON_H_
  36
  37 #include <rte_hash_crc.h>
  38 #include <rte_hash.h>
  39
  40 #define MAX_NODES             16
  41 /*
  42  * Shared port info, including statistics information for display by server.
  43  * Structure will be put in a memzone.
  44  * - All port id values share one cache line as this data will be read-only
  45  * during operation.
  46  * - All rx statistic values share cache lines, as this data is written only
  47  * by the server process. (rare reads by stats display)
  48  * - The tx statistics have values for all ports per cache line, but the stats
  49  * themselves are written by the nodes, so we have a distinct set, on different
  50  * cache lines for each node to use.
  51  */
  52 struct rx_stats {
  53         uint64_t rx[RTE_MAX_ETHPORTS];
  54 } __rte_cache_aligned;
  55
  56 struct tx_stats {
  57         uint64_t tx[RTE_MAX_ETHPORTS];
  58         uint64_t tx_drop[RTE_MAX_ETHPORTS];
  59 } __rte_cache_aligned;
  60
  61 struct filter_stats {
  62         uint64_t drop;
  63         uint64_t passed;
  64 } __rte_cache_aligned;
  65
  66 struct shared_info {
  67         uint8_t num_nodes;
  68         uint8_t num_ports;
  69         uint32_t num_flows;
  70         uint8_t id[RTE_MAX_ETHPORTS];
  71         struct rx_stats rx_stats;
  72         struct tx_stats tx_stats[MAX_NODES];
  73         struct filter_stats filter_stats[MAX_NODES];
  74 };
  75
  76 /* define common names for structures shared between server and node */
  77 #define MP_NODE_RXQ_NAME "MProc_Node_%u_RX"
  78 #define PKTMBUF_POOL_NAME "MProc_pktmbuf_pool"
  79 #define MZ_SHARED_INFO "MProc_shared_info"
  80
  81 /*
  82  * Given the rx queue name template above, get the queue name
  83  */
  84 static inline const char *
  85 get_rx_queue_name(unsigned int id)
  86 {
  87         /*
  88          * Buffer for return value. Size calculated by %u being replaced
  89          * by maximum 3 digits (plus an extra byte for safety)
  90          */
  91         static char buffer[sizeof(MP_NODE_RXQ_NAME) + 2];
  92
  93         snprintf(buffer, sizeof(buffer) - 1, MP_NODE_RXQ_NAME, id);
  94         return buffer;
  95 }
  96
  97 #define RTE_LOGTYPE_APP RTE_LOGTYPE_USER1
  98
  99 #endif