devices: add af-packet v3 api
Type: improvement
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Change-Id: I4679acbe4fd4400d57c0a79b0a6c74c8f1639703
diff --git a/src/vnet/devices/af_packet/af_packet.api b/src/vnet/devices/af_packet/af_packet.api
index c7a81c5..4a5cfb0 100644
--- a/src/vnet/devices/af_packet/af_packet.api
+++ b/src/vnet/devices/af_packet/af_packet.api
@@ -86,6 +86,60 @@
vl_api_interface_index_t sw_if_index;
};
+enum af_packet_mode {
+ AF_PACKET_API_MODE_ETHERNET = 1, /* mode ethernet */
+ AF_PACKET_API_MODE_IP = 2, /* mode ip */
+};
+
+enum af_packet_flags {
+ AF_PACKET_API_FLAG_QDISC_BYPASS = 1, /* enable the qdisc bypass */
+ AF_PACKET_API_FLAG_CKSUM_GSO = 2, /* enable checksum/gso */
+};
+
+/** \brief Create host-interface
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param mode - 1 - Ethernet, 2 - IP
+ @param hw_addr - interface MAC
+ @param use_random_hw_addr - use random generated MAC
+ @param host_if_name - interface name
+ @param rx_frame_size - frame size for RX
+ @param tx_frame_size - frame size for TX
+ @param rx_frames_per_block - frames per block for RX
+ @param tx_frames_per_block - frames per block for TX
+ @param flags - flags for the af_packet interface creation
+ @param num_rx_queues - number of rx queues
+ @param num_tx_queues - number of tx queues
+*/
+define af_packet_create_v3
+{
+ u32 client_index;
+ u32 context;
+
+ vl_api_af_packet_mode_t mode;
+ vl_api_mac_address_t hw_addr;
+ bool use_random_hw_addr;
+ string host_if_name[64];
+ u32 rx_frame_size;
+ u32 tx_frame_size;
+ u32 rx_frames_per_block;
+ u32 tx_frames_per_block;
+ vl_api_af_packet_flags_t flags;
+ u16 num_rx_queues [default=1];
+ u16 num_tx_queues [default=1];
+};
+
+/** \brief Create host-interface response
+ @param context - sender context, to match reply w/ request
+ @param retval - return value for request
+*/
+define af_packet_create_v3_reply
+{
+ u32 context;
+ i32 retval;
+ vl_api_interface_index_t sw_if_index;
+};
+
/** \brief Delete host-interface
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
diff --git a/src/vnet/devices/af_packet/af_packet_api.c b/src/vnet/devices/af_packet/af_packet_api.c
index d991a2e..21f2c38 100644
--- a/src/vnet/devices/af_packet/af_packet_api.c
+++ b/src/vnet/devices/af_packet/af_packet_api.c
@@ -94,6 +94,66 @@
}
static void
+vl_api_af_packet_create_v3_t_handler (vl_api_af_packet_create_v3_t *mp)
+{
+ af_packet_create_if_arg_t _arg, *arg = &_arg;
+ vl_api_af_packet_create_v3_reply_t *rmp;
+ int rv = 0;
+
+ clib_memset (arg, 0, sizeof (*arg));
+
+ arg->host_if_name = format (0, "%s", mp->host_if_name);
+ vec_add1 (arg->host_if_name, 0);
+
+ // Default number of rx/tx queue(s)
+ arg->num_rxqs = 1;
+ arg->num_txqs = 1;
+ arg->rx_frame_size = clib_net_to_host_u32 (mp->rx_frame_size);
+ arg->tx_frame_size = clib_net_to_host_u32 (mp->tx_frame_size);
+ arg->rx_frames_per_block = clib_net_to_host_u32 (mp->rx_frames_per_block);
+ arg->tx_frames_per_block = clib_net_to_host_u32 (mp->tx_frames_per_block);
+ arg->hw_addr = mp->use_random_hw_addr ? 0 : mp->hw_addr;
+
+ switch (clib_net_to_host_u32 (mp->mode))
+ {
+ case AF_PACKET_API_MODE_ETHERNET:
+ arg->mode = AF_PACKET_IF_MODE_ETHERNET;
+ break;
+ case AF_PACKET_API_MODE_IP:
+ arg->mode = AF_PACKET_IF_MODE_IP;
+ break;
+ default:
+ arg->sw_if_index = ~0;
+ rv = VNET_ERR_INVALID_VALUE;
+ goto error;
+ }
+
+ STATIC_ASSERT (((int) AF_PACKET_API_FLAG_QDISC_BYPASS ==
+ (int) AF_PACKET_IF_FLAGS_QDISC_BYPASS),
+ "af-packet qdisc-bypass api flag mismatch");
+ STATIC_ASSERT (
+ ((int) AF_PACKET_API_FLAG_CKSUM_GSO == (int) AF_PACKET_IF_FLAGS_CKSUM_GSO),
+ "af-packet checksum/gso offload api flag mismatch");
+
+ // Default flags
+ arg->flags = clib_net_to_host_u32 (mp->flags);
+
+ if (clib_net_to_host_u16 (mp->num_rx_queues) > 1)
+ arg->num_rxqs = clib_net_to_host_u16 (mp->num_rx_queues);
+
+ if (clib_net_to_host_u16 (mp->num_tx_queues) > 1)
+ arg->num_txqs = clib_net_to_host_u16 (mp->num_tx_queues);
+
+ rv = af_packet_create_if (arg);
+
+error:
+ vec_free (arg->host_if_name);
+ REPLY_MACRO2 (VL_API_AF_PACKET_CREATE_V3_REPLY, ({
+ rmp->sw_if_index = clib_host_to_net_u32 (arg->sw_if_index);
+ }));
+}
+
+static void
vl_api_af_packet_delete_t_handler (vl_api_af_packet_delete_t * mp)
{
vl_api_af_packet_delete_reply_t *rmp;