ceph/src/seastar/dpdk/app/test/test_sched.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2014 Intel Corporation
   3  */
   4
   5 #include <stdlib.h>
   6 #include <stdio.h>
   7 #include <string.h>
   8 #include <stdint.h>
   9 #include <unistd.h>
  10
  11 #include "test.h"
  12
  13 #include <rte_cycles.h>
  14 #include <rte_ether.h>
  15 #include <rte_ip.h>
  16 #include <rte_byteorder.h>
  17 #include <rte_sched.h>
  18
  19
  20 #define SUBPORT         0
  21 #define PIPE            1
  22 #define TC              2
  23 #define QUEUE           3
  24
  25 static struct rte_sched_subport_params subport_param[] = {
  26         {
  27                 .tb_rate = 1250000000,
  28                 .tb_size = 1000000,
  29
  30                 .tc_rate = {1250000000, 1250000000, 1250000000, 1250000000},
  31                 .tc_period = 10,
  32         },
  33 };
  34
  35 static struct rte_sched_pipe_params pipe_profile[] = {
  36         { /* Profile #0 */
  37                 .tb_rate = 305175,
  38                 .tb_size = 1000000,
  39
  40                 .tc_rate = {305175, 305175, 305175, 305175},
  41                 .tc_period = 40,
  42
  43                 .wrr_weights = {1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1},
  44         },
  45 };
  46
  47 static struct rte_sched_port_params port_param = {
  48         .socket = 0, /* computed */
  49         .rate = 0, /* computed */
  50         .mtu = 1522,
  51         .frame_overhead = RTE_SCHED_FRAME_OVERHEAD_DEFAULT,
  52         .n_subports_per_port = 1,
  53         .n_pipes_per_subport = 1024,
  54         .qsize = {32, 32, 32, 32},
  55         .pipe_profiles = pipe_profile,
  56         .n_pipe_profiles = 1,
  57 };
  58
  59 #define NB_MBUF          32
  60 #define MBUF_DATA_SZ     (2048 + RTE_PKTMBUF_HEADROOM)
  61 #define MEMPOOL_CACHE_SZ 0
  62 #define SOCKET           0
  63
  64
  65 static struct rte_mempool *
  66 create_mempool(void)
  67 {
  68         struct rte_mempool * mp;
  69
  70         mp = rte_mempool_lookup("test_sched");
  71         if (!mp)
  72                 mp = rte_pktmbuf_pool_create("test_sched", NB_MBUF,
  73                         MEMPOOL_CACHE_SZ, 0, MBUF_DATA_SZ, SOCKET);
  74
  75         return mp;
  76 }
  77
  78 static void
  79 prepare_pkt(struct rte_sched_port *port, struct rte_mbuf *mbuf)
  80 {
  81         struct ether_hdr *eth_hdr;
  82         struct vlan_hdr *vlan1, *vlan2;
  83         struct ipv4_hdr *ip_hdr;
  84
  85         /* Simulate a classifier */
  86         eth_hdr = rte_pktmbuf_mtod(mbuf, struct ether_hdr *);
  87         vlan1 = (struct vlan_hdr *)(&eth_hdr->ether_type );
  88         vlan2 = (struct vlan_hdr *)((uintptr_t)&eth_hdr->ether_type + sizeof(struct vlan_hdr));
  89         eth_hdr = (struct ether_hdr *)((uintptr_t)&eth_hdr->ether_type + 2 *sizeof(struct vlan_hdr));
  90         ip_hdr = (struct ipv4_hdr *)((uintptr_t)eth_hdr +  sizeof(eth_hdr->ether_type));
  91
  92         vlan1->vlan_tci = rte_cpu_to_be_16(SUBPORT);
  93         vlan2->vlan_tci = rte_cpu_to_be_16(PIPE);
  94         eth_hdr->ether_type =  rte_cpu_to_be_16(ETHER_TYPE_IPv4);
  95         ip_hdr->dst_addr = IPv4(0,0,TC,QUEUE);
  96
  97
  98         rte_sched_port_pkt_write(port, mbuf, SUBPORT, PIPE, TC, QUEUE,
  99                                         RTE_COLOR_YELLOW);
 100
 101         /* 64 byte packet */
 102         mbuf->pkt_len  = 60;
 103         mbuf->data_len = 60;
 104 }
 105
 106
 107 /**
 108  * test main entrance for library sched
 109  */
 110 static int
 111 test_sched(void)
 112 {
 113         struct rte_mempool *mp = NULL;
 114         struct rte_sched_port *port = NULL;
 115         uint32_t pipe;
 116         struct rte_mbuf *in_mbufs[10];
 117         struct rte_mbuf *out_mbufs[10];
 118         int i;
 119
 120         int err;
 121
 122         mp = create_mempool();
 123         TEST_ASSERT_NOT_NULL(mp, "Error creating mempool\n");
 124
 125         port_param.socket = 0;
 126         port_param.rate = (uint64_t) 10000 * 1000 * 1000 / 8;
 127
 128         port = rte_sched_port_config(&port_param);
 129         TEST_ASSERT_NOT_NULL(port, "Error config sched port\n");
 130
 131         err = rte_sched_subport_config(port, SUBPORT, subport_param);
 132         TEST_ASSERT_SUCCESS(err, "Error config sched, err=%d\n", err);
 133
 134         for (pipe = 0; pipe < port_param.n_pipes_per_subport; pipe ++) {
 135                 err = rte_sched_pipe_config(port, SUBPORT, pipe, 0);
 136                 TEST_ASSERT_SUCCESS(err, "Error config sched pipe %u, err=%d\n", pipe, err);
 137         }
 138
 139         for (i = 0; i < 10; i++) {
 140                 in_mbufs[i] = rte_pktmbuf_alloc(mp);
 141                 TEST_ASSERT_NOT_NULL(in_mbufs[i], "Packet allocation failed\n");
 142                 prepare_pkt(port, in_mbufs[i]);
 143         }
 144
 145
 146         err = rte_sched_port_enqueue(port, in_mbufs, 10);
 147         TEST_ASSERT_EQUAL(err, 10, "Wrong enqueue, err=%d\n", err);
 148
 149         err = rte_sched_port_dequeue(port, out_mbufs, 10);
 150         TEST_ASSERT_EQUAL(err, 10, "Wrong dequeue, err=%d\n", err);
 151
 152         for (i = 0; i < 10; i++) {
 153                 enum rte_color color;
 154                 uint32_t subport, traffic_class, queue;
 155
 156                 color = rte_sched_port_pkt_read_color(out_mbufs[i]);
 157                 TEST_ASSERT_EQUAL(color, RTE_COLOR_YELLOW, "Wrong color\n");
 158
 159                 rte_sched_port_pkt_read_tree_path(port, out_mbufs[i],
 160                                 &subport, &pipe, &traffic_class, &queue);
 161
 162                 TEST_ASSERT_EQUAL(subport, SUBPORT, "Wrong subport\n");
 163                 TEST_ASSERT_EQUAL(pipe, PIPE, "Wrong pipe\n");
 164                 TEST_ASSERT_EQUAL(traffic_class, TC, "Wrong traffic_class\n");
 165                 TEST_ASSERT_EQUAL(queue, QUEUE, "Wrong queue\n");
 166
 167         }
 168
 169
 170         struct rte_sched_subport_stats subport_stats;
 171         uint32_t tc_ov;
 172         rte_sched_subport_read_stats(port, SUBPORT, &subport_stats, &tc_ov);
 173 #if 0
 174         TEST_ASSERT_EQUAL(subport_stats.n_pkts_tc[TC-1], 10, "Wrong subport stats\n");
 175 #endif
 176         struct rte_sched_queue_stats queue_stats;
 177         uint16_t qlen;
 178         rte_sched_queue_read_stats(port, QUEUE, &queue_stats, &qlen);
 179 #if 0
 180         TEST_ASSERT_EQUAL(queue_stats.n_pkts, 10, "Wrong queue stats\n");
 181 #endif
 182
 183         rte_sched_port_free(port);
 184
 185         return 0;
 186 }
 187
 188 REGISTER_TEST_COMMAND(sched_autotest, test_sched);