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authorMohsin Kazmi <sykazmi@cisco.com>2021-10-08 15:10:49 +0000
committerBeno�t Ganne <bganne@cisco.com>2021-10-22 12:37:36 +0000
commitcae84fa96856406c93c37e0a38f67d4c6ee7f48a (patch)
tree617e05be28146aff824d47ed71a28ab72bcf8cde /src/vnet/devices/af_packet/af_packet.c
parent0ad060851b4989a1cd300ad711e8498435f65f9a (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/af_packet.c')
-rw-r--r--src/vnet/devices/af_packet/af_packet.c69
1 files changed, 43 insertions, 26 deletions
diff --git a/src/vnet/devices/af_packet/af_packet.c b/src/vnet/devices/af_packet/af_packet.c
index 2dc263046cb..69e3c871412 100644
--- a/src/vnet/devices/af_packet/af_packet.c
+++ b/src/vnet/devices/af_packet/af_packet.c
@@ -38,6 +38,11 @@
af_packet_main_t af_packet_main;
+VNET_HW_INTERFACE_CLASS (af_packet_ip_device_hw_interface_class, static) = {
+ .name = "af-packet-ip-device",
+ .flags = VNET_HW_INTERFACE_CLASS_FLAG_P2P,
+};
+
#define AF_PACKET_DEFAULT_TX_FRAMES_PER_BLOCK 1024
#define AF_PACKET_DEFAULT_TX_FRAME_SIZE (2048 * 5)
#define AF_PACKET_TX_BLOCK_NR 1
@@ -367,6 +372,7 @@ af_packet_create_if (af_packet_create_if_arg_t *arg)
apif->per_interface_next_index = ~0;
apif->next_tx_frame = 0;
apif->next_rx_frame = 0;
+ apif->mode = arg->mode;
ret = af_packet_read_mtu (apif);
if (ret != 0)
@@ -375,36 +381,44 @@ af_packet_create_if (af_packet_create_if_arg_t *arg)
if (tm->n_vlib_mains > 1)
clib_spinlock_init (&apif->lockp);
- /*use configured or generate random MAC address */
- if (arg->hw_addr)
- clib_memcpy (hw_addr, arg->hw_addr, 6);
- else
+ if (apif->mode == AF_PACKET_IF_MODE_ETHERNET)
{
- f64 now = vlib_time_now (vm);
- u32 rnd;
- rnd = (u32) (now * 1e6);
- rnd = random_u32 (&rnd);
-
- clib_memcpy (hw_addr + 2, &rnd, sizeof (rnd));
- hw_addr[0] = 2;
- hw_addr[1] = 0xfe;
- }
+ /*use configured or generate random MAC address */
+ if (arg->hw_addr)
+ clib_memcpy (hw_addr, arg->hw_addr, 6);
+ else
+ {
+ f64 now = vlib_time_now (vm);
+ u32 rnd;
+ rnd = (u32) (now * 1e6);
+ rnd = random_u32 (&rnd);
+
+ clib_memcpy (hw_addr + 2, &rnd, sizeof (rnd));
+ hw_addr[0] = 2;
+ hw_addr[1] = 0xfe;
+ }
- error = ethernet_register_interface (vnm, af_packet_device_class.index,
- if_index, hw_addr, &apif->hw_if_index,
- af_packet_eth_flag_change);
+ error = ethernet_register_interface (
+ vnm, af_packet_device_class.index, if_index, hw_addr,
+ &apif->hw_if_index, af_packet_eth_flag_change);
- if (error)
+ if (error)
+ {
+ clib_memset (apif, 0, sizeof (*apif));
+ pool_put (apm->interfaces, apif);
+ vlib_log_err (apm->log_class, "Unable to register interface: %U",
+ format_clib_error, error);
+ clib_error_free (error);
+ ret = VNET_API_ERROR_SYSCALL_ERROR_1;
+ goto error;
+ }
+ }
+ else
{
- clib_memset (apif, 0, sizeof (*apif));
- pool_put (apm->interfaces, apif);
- vlib_log_err (apm->log_class, "Unable to register interface: %U",
- format_clib_error, error);
- clib_error_free (error);
- ret = VNET_API_ERROR_SYSCALL_ERROR_1;
- goto error;
+ apif->hw_if_index = vnet_register_interface (
+ vnm, af_packet_device_class.index, if_index,
+ af_packet_ip_device_hw_interface_class.index, if_index);
}
-
sw = vnet_get_hw_sw_interface (vnm, apif->hw_if_index);
hw = vnet_get_hw_interface (vnm, apif->hw_if_index);
apif->sw_if_index = sw->sw_if_index;
@@ -504,7 +518,10 @@ af_packet_delete_if (u8 *host_if_name)
mhash_unset (&apm->if_index_by_host_if_name, host_if_name, &if_index);
- ethernet_delete_interface (vnm, apif->hw_if_index);
+ if (apif->mode == AF_PACKET_IF_MODE_ETHERNET)
+ ethernet_delete_interface (vnm, apif->hw_if_index);
+ else
+ vnet_delete_hw_interface (vnm, apif->hw_if_index);
pool_put (apm->interfaces, apif);