ceph/src/seastar/dpdk/app/test-crypto-perf/cperf_test_common.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2017 Intel Corporation
   3  */
   4
   5 #include <rte_malloc.h>
   6 #include <rte_mbuf_pool_ops.h>
   7
   8 #include "cperf_test_common.h"
   9
  10 struct obj_params {
  11         uint32_t src_buf_offset;
  12         uint32_t dst_buf_offset;
  13         uint16_t segment_sz;
  14         uint16_t headroom_sz;
  15         uint16_t data_len;
  16         uint16_t segments_nb;
  17 };
  18
  19 static void
  20 fill_single_seg_mbuf(struct rte_mbuf *m, struct rte_mempool *mp,
  21                 void *obj, uint32_t mbuf_offset, uint16_t segment_sz,
  22                 uint16_t headroom, uint16_t data_len)
  23 {
  24         uint32_t mbuf_hdr_size = sizeof(struct rte_mbuf);
  25
  26         /* start of buffer is after mbuf structure and priv data */
  27         m->priv_size = 0;
  28         m->buf_addr = (char *)m + mbuf_hdr_size;
  29         m->buf_iova = rte_mempool_virt2iova(obj) +
  30                 mbuf_offset + mbuf_hdr_size;
  31         m->buf_len = segment_sz;
  32         m->data_len = data_len;
  33
  34         /* Use headroom specified for the buffer */
  35         m->data_off = headroom;
  36
  37         /* init some constant fields */
  38         m->pool = mp;
  39         m->nb_segs = 1;
  40         m->port = 0xff;
  41         rte_mbuf_refcnt_set(m, 1);
  42         m->next = NULL;
  43 }
  44
  45 static void
  46 fill_multi_seg_mbuf(struct rte_mbuf *m, struct rte_mempool *mp,
  47                 void *obj, uint32_t mbuf_offset, uint16_t segment_sz,
  48                 uint16_t headroom, uint16_t data_len, uint16_t segments_nb)
  49 {
  50         uint16_t mbuf_hdr_size = sizeof(struct rte_mbuf);
  51         uint16_t remaining_segments = segments_nb;
  52         struct rte_mbuf *next_mbuf;
  53         rte_iova_t next_seg_phys_addr = rte_mempool_virt2iova(obj) +
  54                          mbuf_offset + mbuf_hdr_size;
  55
  56         do {
  57                 /* start of buffer is after mbuf structure and priv data */
  58                 m->priv_size = 0;
  59                 m->buf_addr = (char *)m + mbuf_hdr_size;
  60                 m->buf_iova = next_seg_phys_addr;
  61                 next_seg_phys_addr += mbuf_hdr_size + segment_sz;
  62                 m->buf_len = segment_sz;
  63                 m->data_len = data_len;
  64
  65                 /* Use headroom specified for the buffer */
  66                 m->data_off = headroom;
  67
  68                 /* init some constant fields */
  69                 m->pool = mp;
  70                 m->nb_segs = segments_nb;
  71                 m->port = 0xff;
  72                 rte_mbuf_refcnt_set(m, 1);
  73                 next_mbuf = (struct rte_mbuf *) ((uint8_t *) m +
  74                                         mbuf_hdr_size + segment_sz);
  75                 m->next = next_mbuf;
  76                 m = next_mbuf;
  77                 remaining_segments--;
  78
  79         } while (remaining_segments > 0);
  80
  81         m->next = NULL;
  82 }
  83
  84 static void
  85 mempool_obj_init(struct rte_mempool *mp,
  86                  void *opaque_arg,
  87                  void *obj,
  88                  __attribute__((unused)) unsigned int i)
  89 {
  90         struct obj_params *params = opaque_arg;
  91         struct rte_crypto_op *op = obj;
  92         struct rte_mbuf *m = (struct rte_mbuf *) ((uint8_t *) obj +
  93                                         params->src_buf_offset);
  94         /* Set crypto operation */
  95         op->type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
  96         op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
  97         op->sess_type = RTE_CRYPTO_OP_WITH_SESSION;
  98         op->phys_addr = rte_mem_virt2iova(obj);
  99         op->mempool = mp;
 100
 101         /* Set source buffer */
 102         op->sym->m_src = m;
 103         if (params->segments_nb == 1)
 104                 fill_single_seg_mbuf(m, mp, obj, params->src_buf_offset,
 105                                 params->segment_sz, params->headroom_sz,
 106                                 params->data_len);
 107         else
 108                 fill_multi_seg_mbuf(m, mp, obj, params->src_buf_offset,
 109                                 params->segment_sz, params->headroom_sz,
 110                                 params->data_len, params->segments_nb);
 111
 112
 113         /* Set destination buffer */
 114         if (params->dst_buf_offset) {
 115                 m = (struct rte_mbuf *) ((uint8_t *) obj +
 116                                 params->dst_buf_offset);
 117                 fill_single_seg_mbuf(m, mp, obj, params->dst_buf_offset,
 118                                 params->segment_sz, params->headroom_sz,
 119                                 params->data_len);
 120                 op->sym->m_dst = m;
 121         } else
 122                 op->sym->m_dst = NULL;
 123 }
 124
 125 int
 126 cperf_alloc_common_memory(const struct cperf_options *options,
 127                         const struct cperf_test_vector *test_vector,
 128                         uint8_t dev_id, uint16_t qp_id,
 129                         size_t extra_op_priv_size,
 130                         uint32_t *src_buf_offset,
 131                         uint32_t *dst_buf_offset,
 132                         struct rte_mempool **pool)
 133 {
 134         const char *mp_ops_name;
 135         char pool_name[32] = "";
 136         int ret;
 137
 138         /* Calculate the object size */
 139         uint16_t crypto_op_size = sizeof(struct rte_crypto_op) +
 140                 sizeof(struct rte_crypto_sym_op);
 141         uint16_t crypto_op_private_size;
 142         /*
 143          * If doing AES-CCM, IV field needs to be 16 bytes long,
 144          * and AAD field needs to be long enough to have 18 bytes,
 145          * plus the length of the AAD, and all rounded to a
 146          * multiple of 16 bytes.
 147          */
 148         if (options->aead_algo == RTE_CRYPTO_AEAD_AES_CCM) {
 149                 crypto_op_private_size = extra_op_priv_size +
 150                         test_vector->cipher_iv.length +
 151                         test_vector->auth_iv.length +
 152                         RTE_ALIGN_CEIL(test_vector->aead_iv.length, 16) +
 153                         RTE_ALIGN_CEIL(options->aead_aad_sz + 18, 16);
 154         } else {
 155                 crypto_op_private_size = extra_op_priv_size +
 156                         test_vector->cipher_iv.length +
 157                         test_vector->auth_iv.length +
 158                         test_vector->aead_iv.length +
 159                         options->aead_aad_sz;
 160         }
 161
 162         uint16_t crypto_op_total_size = crypto_op_size +
 163                                 crypto_op_private_size;
 164         uint16_t crypto_op_total_size_padded =
 165                                 RTE_CACHE_LINE_ROUNDUP(crypto_op_total_size);
 166         uint32_t mbuf_size = sizeof(struct rte_mbuf) + options->segment_sz;
 167         uint32_t max_size = options->max_buffer_size + options->digest_sz;
 168         uint16_t segments_nb = (max_size % options->segment_sz) ?
 169                         (max_size / options->segment_sz) + 1 :
 170                         max_size / options->segment_sz;
 171         uint32_t obj_size = crypto_op_total_size_padded +
 172                                 (mbuf_size * segments_nb);
 173
 174         snprintf(pool_name, sizeof(pool_name), "pool_cdev_%u_qp_%u",
 175                         dev_id, qp_id);
 176
 177         *src_buf_offset = crypto_op_total_size_padded;
 178
 179         struct obj_params params = {
 180                 .segment_sz = options->segment_sz,
 181                 .headroom_sz = options->headroom_sz,
 182                 /* Data len = segment size - (headroom + tailroom) */
 183                 .data_len = options->segment_sz -
 184                             options->headroom_sz -
 185                             options->tailroom_sz,
 186                 .segments_nb = segments_nb,
 187                 .src_buf_offset = crypto_op_total_size_padded,
 188                 .dst_buf_offset = 0
 189         };
 190
 191         if (options->out_of_place) {
 192                 *dst_buf_offset = *src_buf_offset +
 193                                 (mbuf_size * segments_nb);
 194                 params.dst_buf_offset = *dst_buf_offset;
 195                 /* Destination buffer will be one segment only */
 196                 obj_size += max_size;
 197         }
 198
 199         *pool = rte_mempool_create_empty(pool_name,
 200                         options->pool_sz, obj_size, 512, 0,
 201                         rte_socket_id(), 0);
 202         if (*pool == NULL) {
 203                 RTE_LOG(ERR, USER1,
 204                         "Cannot allocate mempool for device %u\n",
 205                         dev_id);
 206                 return -1;
 207         }
 208
 209         mp_ops_name = rte_mbuf_best_mempool_ops();
 210
 211         ret = rte_mempool_set_ops_byname(*pool,
 212                 mp_ops_name, NULL);
 213         if (ret != 0) {
 214                 RTE_LOG(ERR, USER1,
 215                          "Error setting mempool handler for device %u\n",
 216                          dev_id);
 217                 return -1;
 218         }
 219
 220         ret = rte_mempool_populate_default(*pool);
 221         if (ret < 0) {
 222                 RTE_LOG(ERR, USER1,
 223                          "Error populating mempool for device %u\n",
 224                          dev_id);
 225                 return -1;
 226         }
 227
 228         rte_mempool_obj_iter(*pool, mempool_obj_init, (void *)&params);
 229
 230         return 0;
 231 }