summaryrefslogtreecommitdiffstats
path: root/src/vnet/devices/tap/tap.c
diff options
context:
space:
mode:
authorMohsin Kazmi <sykazmi@cisco.com>2018-10-23 18:00:47 +0200
committerDamjan Marion <damarion@cisco.com>2019-01-21 23:13:20 +0100
commitd6c15af33f3f153e084f14484e884f3ca68dbc23 (patch)
tree97d7d92f4fb57067f0c24900a5363448df92f8b0 /src/vnet/devices/tap/tap.c
parent8b5d0b8c3a089e88a8872af939302029eb3434d9 (diff)
virtio: Native virtio driver
Change-Id: Id7fccf2f805e578fb05032aeb2b649a74c3c0e56 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Diffstat (limited to 'src/vnet/devices/tap/tap.c')
-rw-r--r--src/vnet/devices/tap/tap.c26
1 files changed, 18 insertions, 8 deletions
diff --git a/src/vnet/devices/tap/tap.c b/src/vnet/devices/tap/tap.c
index d0ed58c1f06..4f3066a6916 100644
--- a/src/vnet/devices/tap/tap.c
+++ b/src/vnet/devices/tap/tap.c
@@ -130,7 +130,7 @@ tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args)
_IOCTL (vif->fd, VHOST_GET_FEATURES, &vif->remote_features);
- if ((vif->remote_features & (1ULL << VIRTIO_NET_F_MRG_RXBUF)) == 0)
+ if ((vif->remote_features & VIRTIO_FEATURE (VIRTIO_NET_F_MRG_RXBUF)) == 0)
{
args->rv = VNET_API_ERROR_UNSUPPORTED;
args->error = clib_error_return (0, "vhost-net backend doesn't support "
@@ -138,7 +138,8 @@ tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args)
goto error;
}
- if ((vif->remote_features & (1ULL << VIRTIO_RING_F_INDIRECT_DESC)) == 0)
+ if ((vif->remote_features & VIRTIO_FEATURE (VIRTIO_RING_F_INDIRECT_DESC)) ==
+ 0)
{
args->rv = VNET_API_ERROR_UNSUPPORTED;
args->error = clib_error_return (0, "vhost-net backend doesn't support "
@@ -146,7 +147,7 @@ tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args)
goto error;
}
- if ((vif->remote_features & (1ULL << VIRTIO_F_VERSION_1)) == 0)
+ if ((vif->remote_features & VIRTIO_FEATURE (VIRTIO_F_VERSION_1)) == 0)
{
args->rv = VNET_API_ERROR_UNSUPPORTED;
args->error = clib_error_return (0, "vhost-net backend doesn't support "
@@ -154,9 +155,11 @@ tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args)
goto error;
}
- vif->features |= 1ULL << VIRTIO_NET_F_MRG_RXBUF;
- vif->features |= 1ULL << VIRTIO_F_VERSION_1;
- vif->features |= 1ULL << VIRTIO_RING_F_INDIRECT_DESC;
+ vif->features |= VIRTIO_FEATURE (VIRTIO_NET_F_MRG_RXBUF);
+ vif->features |= VIRTIO_FEATURE (VIRTIO_F_VERSION_1);
+ vif->features |= VIRTIO_FEATURE (VIRTIO_RING_F_INDIRECT_DESC);
+
+ virtio_set_net_hdr_size (vif);
_IOCTL (vif->fd, VHOST_SET_FEATURES, &vif->features);
@@ -349,6 +352,8 @@ tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args)
}
vif->rx_ring_sz = args->rx_ring_sz != 0 ? args->rx_ring_sz : 256;
vif->tx_ring_sz = args->tx_ring_sz != 0 ? args->tx_ring_sz : 256;
+ clib_memcpy (vif->mac_addr, args->mac_addr, 6);
+
vif->host_if_name = args->host_if_name;
args->host_if_name = 0;
vif->net_ns = args->host_namespace;
@@ -363,9 +368,10 @@ tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args)
if (args->host_ip6_prefix_len)
clib_memcpy (&vif->host_ip6_addr, &args->host_ip6_addr, 16);
+ vif->type = VIRTIO_IF_TYPE_TAP;
args->error = ethernet_register_interface (vnm, virtio_device_class.index,
vif->dev_instance,
- args->mac_addr,
+ vif->mac_addr,
&vif->hw_if_index,
virtio_eth_flag_change);
if (args->error)
@@ -386,7 +392,6 @@ tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args)
vnet_hw_interface_set_rx_mode (vnm, vif->hw_if_index, 0,
VNET_HW_INTERFACE_RX_MODE_DEFAULT);
vif->per_interface_next_index = ~0;
- vif->type = VIRTIO_IF_TYPE_TAP;
vif->flags |= VIRTIO_IF_FLAG_ADMIN_UP;
vnet_hw_interface_set_flags (vnm, vif->hw_if_index,
VNET_HW_INTERFACE_FLAG_LINK_UP);
@@ -433,6 +438,9 @@ tap_delete_if (vlib_main_t * vm, u32 sw_if_index)
vif = pool_elt_at_index (mm->interfaces, hw->dev_instance);
+ if (vif->type != VIRTIO_IF_TYPE_TAP)
+ return VNET_API_ERROR_INVALID_INTERFACE;
+
/* bring down the interface */
vnet_hw_interface_set_flags (vnm, vif->hw_if_index, 0);
vnet_sw_interface_set_flags (vnm, vif->sw_if_index, 0);
@@ -469,6 +477,8 @@ tap_dump_ifs (tap_interface_details_t ** out_tapids)
/* *INDENT-OFF* */
pool_foreach (vif, mm->interfaces,
+ if (vif->type != VIRTIO_IF_TYPE_TAP)
+ continue;
vec_add2(r_tapids, tapid, 1);
clib_memset (tapid, 0, sizeof (*tapid));
tapid->id = vif->id;