drivers/crypto/virtio/virtqueue.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018 HUAWEI TECHNOLOGIES CO., LTD.
   3  */
   4
   5 #include <stdint.h>
   6
   7 #include <rte_mbuf.h>
   8 #include <rte_crypto.h>
   9 #include <rte_malloc.h>
  10
  11 #include "virtqueue.h"
  12
  13 void
  14 virtqueue_disable_intr(struct virtqueue *vq)
  15 {
  16         /*
  17          * Set VRING_AVAIL_F_NO_INTERRUPT to hint host
  18          * not to interrupt when it consumes packets
  19          * Note: this is only considered a hint to the host
  20          */
  21         vq->vq_ring.avail->flags |= VRING_AVAIL_F_NO_INTERRUPT;
  22 }
  23
  24 void
  25 virtqueue_detatch_unused(struct virtqueue *vq)
  26 {
  27         struct rte_crypto_op *cop = NULL;
  28
  29         int idx;
  30
  31         if (vq != NULL)
  32                 for (idx = 0; idx < vq->vq_nentries; idx++) {
  33                         cop = vq->vq_descx[idx].crypto_op;
  34                         if (cop) {
  35                                 if (cop->sym->m_src)
  36                                         rte_pktmbuf_free(cop->sym->m_src);
  37                                 if (cop->sym->m_dst)
  38                                         rte_pktmbuf_free(cop->sym->m_dst);
  39                                 rte_crypto_op_free(cop);
  40                                 vq->vq_descx[idx].crypto_op = NULL;
  41                         }
  42                 }
  43 }