diff options
| author |   Mohsin Kazmi <sykazmi@cisco.com> | 2021-10-08 15:10:49 +0000 |
|---|---|---|
| committer |   Beno�t Ganne <bganne@cisco.com> | 2021-10-22 12:37:36 +0000 |
| commit | cae84fa96856406c93c37e0a38f67d4c6ee7f48a (patch) | |
| tree | 617e05be28146aff824d47ed71a28ab72bcf8cde /src/vnet/devices/af_packet/node.c | |
| parent | 0ad060851b4989a1cd300ad711e8498435f65f9a (diff) | |
devices: add support for l3 af_packet interface
Type: improvement
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Change-Id: Ia6b9d4ac55be2216887bfdb99be4021f6a96f166
Diffstat (limited to 'src/vnet/devices/af_packet/node.c')
| -rw-r--r-- | src/vnet/devices/af_packet/node.c | 49 |
1 files changed, 40 insertions, 9 deletions
diff --git a/src/vnet/devices/af_packet/node.c b/src/vnet/devices/af_packet/node.c index e2f87b10b35..0fdae5c3039 100644 --- a/src/vnet/devices/af_packet/node.c +++ b/src/vnet/devices/af_packet/node.c @@ -194,7 +194,7 @@ af_packet_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, { af_packet_main_t *apm = &af_packet_main; struct tpacket2_hdr *tph; - u32 next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT; + u32 next_index; u32 block = 0; u32 rx_frame; u32 n_free_bufs; @@ -209,6 +209,21 @@ af_packet_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, u32 thread_index = vm->thread_index; u32 n_buffer_bytes = vlib_buffer_get_default_data_size (vm); u32 min_bufs = apif->rx_req->tp_frame_size / n_buffer_bytes; + vlib_buffer_t bt; + + if (apif->mode == AF_PACKET_IF_MODE_IP) + { + next_index = VNET_DEVICE_INPUT_NEXT_IP4_INPUT; + } + else + { + next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT; + if (PREDICT_FALSE (apif->per_interface_next_index != ~0)) + next_index = apif->per_interface_next_index; + + /* redirect if feature path enabled */ + vnet_feature_start_device_input_x1 (apif->sw_if_index, &next_index, &bt); + } n_free_bufs = vec_len (apm->rx_buffers[thread_index]); if (PREDICT_FALSE (n_free_bufs < VLIB_FRAME_SIZE)) @@ -317,14 +332,30 @@ af_packet_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, } else { - next0 = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT; - - if (PREDICT_FALSE (apif->per_interface_next_index != ~0)) - next0 = apif->per_interface_next_index; - - /* redirect if feature path enabled */ - vnet_feature_start_device_input_x1 (apif->sw_if_index, &next0, - first_b0); + if (PREDICT_FALSE (apif->mode == AF_PACKET_IF_MODE_IP)) + { + switch (first_b0->data[0] & 0xf0) + { + case 0x40: + next0 = VNET_DEVICE_INPUT_NEXT_IP4_INPUT; + break; + case 0x60: + next0 = VNET_DEVICE_INPUT_NEXT_IP6_INPUT; + break; + default: + next0 = VNET_DEVICE_INPUT_NEXT_DROP; + break; + } + if (PREDICT_FALSE (apif->per_interface_next_index != ~0)) + next0 = apif->per_interface_next_index; + } + else + { + /* copy feature arc data from template */ + first_b0->current_config_index = bt.current_config_index; + vnet_buffer (first_b0)->feature_arc_index = + vnet_buffer (&bt)->feature_arc_index; + } } /* trace */ |