drivers/raw/ioat/ioat_rawdev_test.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2019 Intel Corporation
   3  */
   4
   5 #include <unistd.h>
   6 #include <inttypes.h>
   7 #include <rte_mbuf.h>
   8 #include "rte_rawdev.h"
   9 #include "rte_ioat_rawdev.h"
  10 #include "ioat_private.h"
  11
  12 #define MAX_SUPPORTED_RAWDEVS 64
  13 #define TEST_SKIPPED 77
  14
  15 int ioat_rawdev_test(uint16_t dev_id); /* pre-define to keep compiler happy */
  16
  17 static struct rte_mempool *pool;
  18 static unsigned short expected_ring_size[MAX_SUPPORTED_RAWDEVS];
  19
  20 #define PRINT_ERR(...) print_err(__func__, __LINE__, __VA_ARGS__)
  21
  22 static inline int
  23 __rte_format_printf(3, 4)
  24 print_err(const char *func, int lineno, const char *format, ...)
  25 {
  26         va_list ap;
  27         int ret;
  28
  29         ret = fprintf(stderr, "In %s:%d - ", func, lineno);
  30         va_start(ap, format);
  31         ret += vfprintf(stderr, format, ap);
  32         va_end(ap);
  33
  34         return ret;
  35 }
  36
  37 static int
  38 test_enqueue_copies(int dev_id)
  39 {
  40         const unsigned int length = 1024;
  41         unsigned int i;
  42
  43         do {
  44                 struct rte_mbuf *src, *dst;
  45                 char *src_data, *dst_data;
  46                 struct rte_mbuf *completed[2] = {0};
  47
  48                 /* test doing a single copy */
  49                 src = rte_pktmbuf_alloc(pool);
  50                 dst = rte_pktmbuf_alloc(pool);
  51                 src->data_len = src->pkt_len = length;
  52                 dst->data_len = dst->pkt_len = length;
  53                 src_data = rte_pktmbuf_mtod(src, char *);
  54                 dst_data = rte_pktmbuf_mtod(dst, char *);
  55
  56                 for (i = 0; i < length; i++)
  57                         src_data[i] = rand() & 0xFF;
  58
  59                 if (rte_ioat_enqueue_copy(dev_id,
  60                                 src->buf_iova + src->data_off,
  61                                 dst->buf_iova + dst->data_off,
  62                                 length,
  63                                 (uintptr_t)src,
  64                                 (uintptr_t)dst) != 1) {
  65                         PRINT_ERR("Error with rte_ioat_enqueue_copy\n");
  66                         return -1;
  67                 }
  68                 rte_ioat_perform_ops(dev_id);
  69                 usleep(10);
  70
  71                 if (rte_ioat_completed_ops(dev_id, 1, (void *)&completed[0],
  72                                 (void *)&completed[1]) != 1) {
  73                         PRINT_ERR("Error with rte_ioat_completed_ops\n");
  74                         return -1;
  75                 }
  76                 if (completed[0] != src || completed[1] != dst) {
  77                         PRINT_ERR("Error with completions: got (%p, %p), not (%p,%p)\n",
  78                                         completed[0], completed[1], src, dst);
  79                         return -1;
  80                 }
  81
  82                 for (i = 0; i < length; i++)
  83                         if (dst_data[i] != src_data[i]) {
  84                                 PRINT_ERR("Data mismatch at char %u\n", i);
  85                                 return -1;
  86                         }
  87                 rte_pktmbuf_free(src);
  88                 rte_pktmbuf_free(dst);
  89         } while (0);
  90
  91         /* test doing multiple copies */
  92         do {
  93                 struct rte_mbuf *srcs[32], *dsts[32];
  94                 struct rte_mbuf *completed_src[64];
  95                 struct rte_mbuf *completed_dst[64];
  96                 unsigned int j;
  97
  98                 for (i = 0; i < RTE_DIM(srcs); i++) {
  99                         char *src_data;
 100
 101                         srcs[i] = rte_pktmbuf_alloc(pool);
 102                         dsts[i] = rte_pktmbuf_alloc(pool);
 103                         srcs[i]->data_len = srcs[i]->pkt_len = length;
 104                         dsts[i]->data_len = dsts[i]->pkt_len = length;
 105                         src_data = rte_pktmbuf_mtod(srcs[i], char *);
 106
 107                         for (j = 0; j < length; j++)
 108                                 src_data[j] = rand() & 0xFF;
 109
 110                         if (rte_ioat_enqueue_copy(dev_id,
 111                                         srcs[i]->buf_iova + srcs[i]->data_off,
 112                                         dsts[i]->buf_iova + dsts[i]->data_off,
 113                                         length,
 114                                         (uintptr_t)srcs[i],
 115                                         (uintptr_t)dsts[i]) != 1) {
 116                                 PRINT_ERR("Error with rte_ioat_enqueue_copy for buffer %u\n",
 117                                                 i);
 118                                 return -1;
 119                         }
 120                 }
 121                 rte_ioat_perform_ops(dev_id);
 122                 usleep(100);
 123
 124                 if (rte_ioat_completed_ops(dev_id, 64, (void *)completed_src,
 125                                 (void *)completed_dst) != RTE_DIM(srcs)) {
 126                         PRINT_ERR("Error with rte_ioat_completed_ops\n");
 127                         return -1;
 128                 }
 129                 for (i = 0; i < RTE_DIM(srcs); i++) {
 130                         char *src_data, *dst_data;
 131
 132                         if (completed_src[i] != srcs[i]) {
 133                                 PRINT_ERR("Error with source pointer %u\n", i);
 134                                 return -1;
 135                         }
 136                         if (completed_dst[i] != dsts[i]) {
 137                                 PRINT_ERR("Error with dest pointer %u\n", i);
 138                                 return -1;
 139                         }
 140
 141                         src_data = rte_pktmbuf_mtod(srcs[i], char *);
 142                         dst_data = rte_pktmbuf_mtod(dsts[i], char *);
 143                         for (j = 0; j < length; j++)
 144                                 if (src_data[j] != dst_data[j]) {
 145                                         PRINT_ERR("Error with copy of packet %u, byte %u\n",
 146                                                         i, j);
 147                                         return -1;
 148                                 }
 149                         rte_pktmbuf_free(srcs[i]);
 150                         rte_pktmbuf_free(dsts[i]);
 151                 }
 152
 153         } while (0);
 154
 155         return 0;
 156 }
 157
 158 int
 159 ioat_rawdev_test(uint16_t dev_id)
 160 {
 161 #define IOAT_TEST_RINGSIZE 512
 162         struct rte_ioat_rawdev_config p = { .ring_size = -1 };
 163         struct rte_rawdev_info info = { .dev_private = &p };
 164         struct rte_rawdev_xstats_name *snames = NULL;
 165         uint64_t *stats = NULL;
 166         unsigned int *ids = NULL;
 167         unsigned int nb_xstats;
 168         unsigned int i;
 169
 170         if (dev_id >= MAX_SUPPORTED_RAWDEVS) {
 171                 printf("Skipping test. Cannot test rawdevs with id's greater than %d\n",
 172                                 MAX_SUPPORTED_RAWDEVS);
 173                 return TEST_SKIPPED;
 174         }
 175
 176         rte_rawdev_info_get(dev_id, &info, sizeof(p));
 177         if (p.ring_size != expected_ring_size[dev_id]) {
 178                 PRINT_ERR("Error, initial ring size is not as expected (Actual: %d, Expected: %d)\n",
 179                                 (int)p.ring_size, expected_ring_size[dev_id]);
 180                 return -1;
 181         }
 182
 183         p.ring_size = IOAT_TEST_RINGSIZE;
 184         if (rte_rawdev_configure(dev_id, &info, sizeof(p)) != 0) {
 185                 PRINT_ERR("Error with rte_rawdev_configure()\n");
 186                 return -1;
 187         }
 188         rte_rawdev_info_get(dev_id, &info, sizeof(p));
 189         if (p.ring_size != IOAT_TEST_RINGSIZE) {
 190                 PRINT_ERR("Error, ring size is not %d (%d)\n",
 191                                 IOAT_TEST_RINGSIZE, (int)p.ring_size);
 192                 return -1;
 193         }
 194         expected_ring_size[dev_id] = p.ring_size;
 195
 196         if (rte_rawdev_start(dev_id) != 0) {
 197                 PRINT_ERR("Error with rte_rawdev_start()\n");
 198                 return -1;
 199         }
 200
 201         pool = rte_pktmbuf_pool_create("TEST_IOAT_POOL",
 202                         256, /* n == num elements */
 203                         32,  /* cache size */
 204                         0,   /* priv size */
 205                         2048, /* data room size */
 206                         info.socket_id);
 207         if (pool == NULL) {
 208                 PRINT_ERR("Error with mempool creation\n");
 209                 return -1;
 210         }
 211
 212         /* allocate memory for xstats names and values */
 213         nb_xstats = rte_rawdev_xstats_names_get(dev_id, NULL, 0);
 214
 215         snames = malloc(sizeof(*snames) * nb_xstats);
 216         if (snames == NULL) {
 217                 PRINT_ERR("Error allocating xstat names memory\n");
 218                 goto err;
 219         }
 220         rte_rawdev_xstats_names_get(dev_id, snames, nb_xstats);
 221
 222         ids = malloc(sizeof(*ids) * nb_xstats);
 223         if (ids == NULL) {
 224                 PRINT_ERR("Error allocating xstat ids memory\n");
 225                 goto err;
 226         }
 227         for (i = 0; i < nb_xstats; i++)
 228                 ids[i] = i;
 229
 230         stats = malloc(sizeof(*stats) * nb_xstats);
 231         if (stats == NULL) {
 232                 PRINT_ERR("Error allocating xstat memory\n");
 233                 goto err;
 234         }
 235
 236         /* run the test cases */
 237         for (i = 0; i < 100; i++) {
 238                 unsigned int j;
 239
 240                 if (test_enqueue_copies(dev_id) != 0)
 241                         goto err;
 242
 243                 rte_rawdev_xstats_get(dev_id, ids, stats, nb_xstats);
 244                 for (j = 0; j < nb_xstats; j++)
 245                         printf("%s: %"PRIu64"   ", snames[j].name, stats[j]);
 246                 printf("\r");
 247         }
 248         printf("\n");
 249
 250         rte_rawdev_stop(dev_id);
 251         if (rte_rawdev_xstats_reset(dev_id, NULL, 0) != 0) {
 252                 PRINT_ERR("Error resetting xstat values\n");
 253                 goto err;
 254         }
 255
 256         rte_mempool_free(pool);
 257         free(snames);
 258         free(stats);
 259         free(ids);
 260         return 0;
 261
 262 err:
 263         rte_rawdev_stop(dev_id);
 264         rte_rawdev_xstats_reset(dev_id, NULL, 0);
 265         rte_mempool_free(pool);
 266         free(snames);
 267         free(stats);
 268         free(ids);
 269         return -1;
 270 }
 271
 272 int
 273 idxd_rawdev_test(uint16_t dev_id)
 274 {
 275         rte_rawdev_dump(dev_id, stdout);
 276         return 0;
 277 }