diff options
Diffstat (limited to 'lib/librte_vhost/virtio_net.c')
| -rw-r--r-- | lib/librte_vhost/virtio_net.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/lib/librte_vhost/virtio_net.c b/lib/librte_vhost/virtio_net.c index 48219e05..f8da78ab 100644 --- a/lib/librte_vhost/virtio_net.c +++ b/lib/librte_vhost/virtio_net.c @@ -114,11 +114,16 @@ update_shadow_used_ring(struct vhost_virtqueue *vq, static void virtio_enqueue_offload(struct rte_mbuf *m_buf, struct virtio_net_hdr *net_hdr) { - if (m_buf->ol_flags & PKT_TX_L4_MASK) { + uint64_t csum_l4 = m_buf->ol_flags & PKT_TX_L4_MASK; + + if (m_buf->ol_flags & PKT_TX_TCP_SEG) + csum_l4 |= PKT_TX_TCP_CKSUM; + + if (csum_l4) { net_hdr->flags = VIRTIO_NET_HDR_F_NEEDS_CSUM; net_hdr->csum_start = m_buf->l2_len + m_buf->l3_len; - switch (m_buf->ol_flags & PKT_TX_L4_MASK) { + switch (csum_l4) { case PKT_TX_TCP_CKSUM: net_hdr->csum_offset = (offsetof(struct tcp_hdr, cksum)); @@ -138,6 +143,15 @@ virtio_enqueue_offload(struct rte_mbuf *m_buf, struct virtio_net_hdr *net_hdr) ASSIGN_UNLESS_EQUAL(net_hdr->flags, 0); } + /* IP cksum verification cannot be bypassed, then calculate here */ + if (m_buf->ol_flags & PKT_TX_IP_CKSUM) { + struct ipv4_hdr *ipv4_hdr; + + ipv4_hdr = rte_pktmbuf_mtod_offset(m_buf, struct ipv4_hdr *, + m_buf->l2_len); + ipv4_hdr->hdr_checksum = rte_ipv4_cksum(ipv4_hdr); + } + if (m_buf->ol_flags & PKT_TX_TCP_SEG) { if (m_buf->ol_flags & PKT_TX_IPV4) net_hdr->gso_type = VIRTIO_NET_HDR_GSO_TCPV4; @@ -601,9 +615,11 @@ static inline bool virtio_net_with_host_offload(struct virtio_net *dev) { if (dev->features & - (VIRTIO_NET_F_CSUM | VIRTIO_NET_F_HOST_ECN | - VIRTIO_NET_F_HOST_TSO4 | VIRTIO_NET_F_HOST_TSO6 | - VIRTIO_NET_F_HOST_UFO)) + ((1ULL << VIRTIO_NET_F_CSUM) | + (1ULL << VIRTIO_NET_F_HOST_ECN) | + (1ULL << VIRTIO_NET_F_HOST_TSO4) | + (1ULL << VIRTIO_NET_F_HOST_TSO6) | + (1ULL << VIRTIO_NET_F_HOST_UFO))) return true; return false; |