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 */
+ AF_PACKET_API_FLAG_VERSION_2 = 8 [backwards_compatible], /* af packet v2, default is v3 */
};
/** \brief Create host-interface
#define AF_PACKET_DEFAULT_TX_FRAME_SIZE (2048 * 33) // GSO packet of 64KB
#define AF_PACKET_TX_BLOCK_NR 1
+#define AF_PACKET_DEFAULT_RX_FRAMES_PER_BLOCK_V2 1024
+#define AF_PACKET_DEFAULT_RX_FRAME_SIZE_V2 (2048 * 33) // GSO packet of 64KB
+#define AF_PACKET_RX_BLOCK_NR_V2 1
+
#define AF_PACKET_DEFAULT_RX_FRAMES_PER_BLOCK 32
#define AF_PACKET_DEFAULT_RX_FRAME_SIZE 2048
#define AF_PACKET_RX_BLOCK_NR 160
}
static int
-create_packet_v3_sock (int host_if_index, tpacket_req3_t *rx_req,
- tpacket_req3_t *tx_req, int *fd, af_packet_ring_t *ring,
- u32 fanout_id, af_packet_if_flags_t *flags)
+create_packet_sock (int host_if_index, tpacket_req_u_t *rx_req,
+ tpacket_req_u_t *tx_req, int *fd, af_packet_ring_t *ring,
+ u32 fanout_id, af_packet_if_flags_t *flags, int ver)
{
af_packet_main_t *apm = &af_packet_main;
struct sockaddr_ll sll;
socklen_t req_sz = sizeof (tpacket_req3_t);
int ret;
- int ver = TPACKET_V3;
u32 ring_sz = 0;
- if (rx_req)
- ring_sz += rx_req->tp_block_size * rx_req->tp_block_nr;
-
- if (tx_req)
- ring_sz += tx_req->tp_block_size * tx_req->tp_block_nr;
-
if ((*fd = socket (AF_PACKET, SOCK_RAW, htons (ETH_P_ALL))) < 0)
{
vlib_log_err (apm->log_class,
goto error;
}
}
-
+ if (ver == TPACKET_V2)
+ {
+ req_sz = sizeof (tpacket_req_t);
+ ring_sz += rx_req->req.tp_block_size * rx_req->req.tp_block_nr;
+ }
+ else
+ ring_sz += rx_req->req3.tp_block_size * rx_req->req3.tp_block_nr;
if (setsockopt (*fd, SOL_PACKET, PACKET_RX_RING, rx_req, req_sz) < 0)
{
vlib_log_err (apm->log_class,
}
if (tx_req)
- if (setsockopt (*fd, SOL_PACKET, PACKET_TX_RING, tx_req, req_sz) < 0)
- {
- vlib_log_err (apm->log_class,
- "Failed to set packet tx ring options: %s (errno %d)",
- strerror (errno), errno);
- ret = VNET_API_ERROR_SYSCALL_ERROR_1;
- goto error;
- }
-
+ {
+ if (ver == TPACKET_V2)
+ {
+ req_sz = sizeof (tpacket_req_t);
+ ring_sz += tx_req->req.tp_block_size * tx_req->req.tp_block_nr;
+ }
+ else
+ ring_sz += tx_req->req3.tp_block_size * tx_req->req3.tp_block_nr;
+ if (setsockopt (*fd, SOL_PACKET, PACKET_TX_RING, tx_req, req_sz) < 0)
+ {
+ vlib_log_err (apm->log_class,
+ "Failed to set packet tx ring options: %s (errno %d)",
+ strerror (errno), errno);
+ ret = VNET_API_ERROR_SYSCALL_ERROR_1;
+ goto error;
+ }
+ }
ring->ring_start_addr = mmap (NULL, ring_sz, PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_LOCKED, *fd, 0);
if (ring->ring_start_addr == MAP_FAILED)
u8 queue_id)
{
af_packet_main_t *apm = &af_packet_main;
- tpacket_req3_t *rx_req = 0;
- tpacket_req3_t *tx_req = 0;
+ tpacket_req_u_t *rx_req = 0;
+ tpacket_req_u_t *tx_req = 0;
int ret, fd = -1;
af_packet_ring_t ring = { 0 };
u8 *ring_addr = 0;
{
rx_frames_per_block = arg->rx_frames_per_block ?
arg->rx_frames_per_block :
- AF_PACKET_DEFAULT_RX_FRAMES_PER_BLOCK;
-
- rx_frame_size = arg->rx_frame_size ? arg->rx_frame_size :
- AF_PACKET_DEFAULT_RX_FRAME_SIZE;
+ ((apif->version == TPACKET_V3) ?
+ AF_PACKET_DEFAULT_RX_FRAMES_PER_BLOCK :
+ AF_PACKET_DEFAULT_RX_FRAMES_PER_BLOCK_V2);
+
+ rx_frame_size =
+ arg->rx_frame_size ?
+ arg->rx_frame_size :
+ ((apif->version == TPACKET_V3) ? AF_PACKET_DEFAULT_RX_FRAME_SIZE :
+ AF_PACKET_DEFAULT_RX_FRAME_SIZE_V2);
vec_validate (rx_queue->rx_req, 0);
- rx_queue->rx_req->tp_block_size = rx_frame_size * rx_frames_per_block;
- rx_queue->rx_req->tp_frame_size = rx_frame_size;
- rx_queue->rx_req->tp_block_nr = AF_PACKET_RX_BLOCK_NR;
- rx_queue->rx_req->tp_frame_nr =
- AF_PACKET_RX_BLOCK_NR * rx_frames_per_block;
- rx_queue->rx_req->tp_retire_blk_tov = 1; // 1 ms block timout
- rx_queue->rx_req->tp_feature_req_word = 0;
- rx_queue->rx_req->tp_sizeof_priv = 0;
+ rx_queue->rx_req->req.tp_block_size =
+ rx_frame_size * rx_frames_per_block;
+ rx_queue->rx_req->req.tp_frame_size = rx_frame_size;
+ rx_queue->rx_req->req.tp_block_nr = (apif->version == TPACKET_V3) ?
+ AF_PACKET_RX_BLOCK_NR :
+ AF_PACKET_RX_BLOCK_NR_V2;
+ rx_queue->rx_req->req.tp_frame_nr =
+ rx_queue->rx_req->req.tp_block_nr * rx_frames_per_block;
+ if (apif->version == TPACKET_V3)
+ {
+ rx_queue->rx_req->req3.tp_retire_blk_tov = 1; // 1 ms block timout
+ rx_queue->rx_req->req3.tp_feature_req_word = 0;
+ rx_queue->rx_req->req3.tp_sizeof_priv = 0;
+ }
rx_req = rx_queue->rx_req;
}
-
if (tx_queue)
{
tx_frames_per_block = arg->tx_frames_per_block ?
AF_PACKET_DEFAULT_TX_FRAME_SIZE;
vec_validate (tx_queue->tx_req, 0);
- tx_queue->tx_req->tp_block_size = tx_frame_size * tx_frames_per_block;
- tx_queue->tx_req->tp_frame_size = tx_frame_size;
- tx_queue->tx_req->tp_block_nr = AF_PACKET_TX_BLOCK_NR;
- tx_queue->tx_req->tp_frame_nr =
+ tx_queue->tx_req->req.tp_block_size =
+ tx_frame_size * tx_frames_per_block;
+ tx_queue->tx_req->req.tp_frame_size = tx_frame_size;
+ tx_queue->tx_req->req.tp_block_nr = AF_PACKET_TX_BLOCK_NR;
+ tx_queue->tx_req->req.tp_frame_nr =
AF_PACKET_TX_BLOCK_NR * tx_frames_per_block;
- tx_queue->tx_req->tp_retire_blk_tov = 0;
- tx_queue->tx_req->tp_sizeof_priv = 0;
- tx_queue->tx_req->tp_feature_req_word = 0;
+ if (apif->version == TPACKET_V3)
+ {
+ tx_queue->tx_req->req3.tp_retire_blk_tov = 0;
+ tx_queue->tx_req->req3.tp_sizeof_priv = 0;
+ tx_queue->tx_req->req3.tp_feature_req_word = 0;
+ }
tx_req = tx_queue->tx_req;
}
if (rx_queue || tx_queue)
{
- ret = create_packet_v3_sock (apif->host_if_index, rx_req, tx_req, &fd,
- &ring, apif->dev_instance, &arg->flags);
+ ret =
+ create_packet_sock (apif->host_if_index, rx_req, tx_req, &fd, &ring,
+ apif->dev_instance, &arg->flags, apif->version);
if (ret != 0)
goto error;
if (rx_queue)
{
rx_queue->fd = fd;
- vec_validate (rx_queue->rx_ring, rx_queue->rx_req->tp_block_nr - 1);
+ vec_validate (rx_queue->rx_ring, rx_queue->rx_req->req.tp_block_nr - 1);
vec_foreach_index (i, rx_queue->rx_ring)
{
rx_queue->rx_ring[i] =
- ring_addr + i * rx_queue->rx_req->tp_block_size;
+ ring_addr + i * rx_queue->rx_req->req.tp_block_size;
}
rx_queue->next_rx_block = 0;
rx_queue->queue_id = queue_id;
rx_queue->is_rx_pending = 0;
- ring_addr = ring_addr + rx_queue->rx_req->tp_block_size *
- rx_queue->rx_req->tp_block_nr;
+ ring_addr = ring_addr + rx_queue->rx_req->req.tp_block_size *
+ rx_queue->rx_req->req.tp_block_nr;
}
if (tx_queue)
{
tx_queue->fd = fd;
- vec_validate (tx_queue->tx_ring, tx_queue->tx_req->tp_block_nr - 1);
+ vec_validate (tx_queue->tx_ring, tx_queue->tx_req->req.tp_block_nr - 1);
vec_foreach_index (i, tx_queue->tx_ring)
{
tx_queue->tx_ring[i] =
- ring_addr + i * tx_queue->tx_req->tp_block_size;
+ ring_addr + i * tx_queue->tx_req->req.tp_block_size;
}
tx_queue->next_tx_frame = 0;
apif->per_interface_next_index = ~0;
apif->mode = arg->mode;
+ if (arg->is_v2)
+ apif->version = TPACKET_V2;
+ else
+ apif->version = TPACKET_V3;
+
ret = af_packet_device_init (vm, apif, arg);
if (ret != 0)
goto error;
#include <vlib/log.h>
typedef struct tpacket_block_desc block_desc_t;
+typedef struct tpacket_req tpacket_req_t;
typedef struct tpacket_req3 tpacket_req3_t;
+typedef struct tpacket2_hdr tpacket2_hdr_t;
typedef struct tpacket3_hdr tpacket3_hdr_t;
+typedef union _tpacket_req_u
+{
+ tpacket_req_t req;
+ tpacket_req3_t req3;
+} tpacket_req_u_t;
+
typedef enum
{
AF_PACKET_IF_MODE_ETHERNET = 1,
AF_PACKET_IF_FLAGS_QDISC_BYPASS = 1,
AF_PACKET_IF_FLAGS_CKSUM_GSO = 2,
AF_PACKET_IF_FLAGS_FANOUT = 4,
+ AF_PACKET_IF_FLAGS_VERSION_2 = 8,
} af_packet_if_flags_t;
typedef struct
int fd;
union
{
- tpacket_req3_t *rx_req;
- tpacket_req3_t *tx_req;
+ tpacket_req_u_t *rx_req;
+ tpacket_req_u_t *tx_req;
};
union
union
{
u32 next_rx_block;
+ u32 next_rx_frame;
u32 next_tx_frame;
};
af_packet_if_mode_t mode;
u8 is_admin_up;
u8 is_cksum_gso_enabled;
-
+ u8 version;
af_packet_queue_t *rx_queues;
af_packet_queue_t *tx_queues;
u32 tx_frames_per_block;
u8 num_rxqs;
u8 num_txqs;
+ u8 is_v2;
af_packet_if_mode_t mode;
af_packet_if_flags_t flags;
((int) AF_PACKET_API_FLAG_CKSUM_GSO == (int) AF_PACKET_IF_FLAGS_CKSUM_GSO),
"af-packet checksum/gso offload api flag mismatch");
+ STATIC_ASSERT (
+ ((int) AF_PACKET_API_FLAG_VERSION_2 == (int) AF_PACKET_IF_FLAGS_VERSION_2),
+ "af-packet version 2 api flag mismatch");
+
// Default flags
arg->flags = clib_net_to_host_u32 (mp->flags);
if (clib_net_to_host_u16 (mp->num_tx_queues) > 1)
arg->num_txqs = clib_net_to_host_u16 (mp->num_tx_queues);
+ arg->is_v2 = (arg->flags & AF_PACKET_API_FLAG_VERSION_2) ? 1 : 0;
rv = af_packet_create_if (arg);
error:
arg->flags &= ~AF_PACKET_IF_FLAGS_CKSUM_GSO;
else if (unformat (line_input, "mode ip"))
arg->mode = AF_PACKET_IF_MODE_IP;
+ else if (unformat (line_input, "v2"))
+ arg->is_v2 = 1;
else if (unformat (line_input, "hw-addr %U", unformat_ethernet_address,
hwaddr))
arg->hw_addr = hwaddr;
?*/
VLIB_CLI_COMMAND (af_packet_create_command, static) = {
.path = "create host-interface",
- .short_help = "create host-interface name <ifname> [num-rx-queues <n>] "
+ .short_help = "create host-interface [v2] name <ifname> [num-rx-queues <n>] "
"[num-tx-queues <n>] [hw-addr <mac-addr>] [mode ip] "
"[qdisc-bypass-disable] [cksum-gso-disable]",
.function = af_packet_create_command_fn,
u32 buffer_index;
u32 hw_if_index;
u16 queue_id;
- tpacket3_hdr_t tph;
+ u8 is_v2;
+ union
+ {
+ tpacket2_hdr_t tph2;
+ tpacket3_hdr_t tph3;
+ };
vnet_virtio_net_hdr_t vnet_hdr;
vlib_buffer_t buffer;
} af_packet_tx_trace_t;
af_packet_queue_t *rx_queue = 0;
af_packet_queue_t *tx_queue = 0;
- s = format (s, "Linux PACKET socket interface");
+ s = format (s, "Linux PACKET socket interface %s",
+ (apif->version == TPACKET_V2) ? "v2" : "v3");
s = format (s, "\n%UFEATURES:", format_white_space, indent);
if (apif->is_qdisc_bypass_enabled)
s = format (s, "\n%Uqdisc-bpass-enabled", format_white_space, indent + 2);
vec_foreach (rx_queue, apif->rx_queues)
{
- u32 rx_block_size = rx_queue->rx_req->tp_block_size;
- u32 rx_frame_size = rx_queue->rx_req->tp_frame_size;
- u32 rx_frame_nr = rx_queue->rx_req->tp_frame_nr;
- u32 rx_block_nr = rx_queue->rx_req->tp_block_nr;
+ u32 rx_block_size = rx_queue->rx_req->req.tp_block_size;
+ u32 rx_frame_size = rx_queue->rx_req->req.tp_frame_size;
+ u32 rx_frame_nr = rx_queue->rx_req->req.tp_frame_nr;
+ u32 rx_block_nr = rx_queue->rx_req->req.tp_block_nr;
s = format (s, "\n%URX Queue %u:", format_white_space, indent,
rx_queue->queue_id);
s = format (s, "\n%Ublock size:%d nr:%d frame size:%d nr:%d",
format_white_space, indent + 2, rx_block_size, rx_block_nr,
rx_frame_size, rx_frame_nr);
- s = format (s, " next block:%d", rx_queue->next_rx_block);
+ if (apif->version == TPACKET_V2)
+ s = format (s, " next frame:%d", rx_queue->next_rx_frame);
+ else
+ s = format (s, " next block:%d", rx_queue->next_rx_block);
if (rx_queue->is_rx_pending)
{
s = format (
vec_foreach (tx_queue, apif->tx_queues)
{
clib_spinlock_lock (&tx_queue->lockp);
- u32 tx_block_sz = tx_queue->tx_req->tp_block_size;
- u32 tx_frame_sz = tx_queue->tx_req->tp_frame_size;
- u32 tx_frame_nr = tx_queue->tx_req->tp_frame_nr;
- u32 tx_block_nr = tx_queue->tx_req->tp_block_nr;
+ u32 tx_block_sz = tx_queue->tx_req->req.tp_block_size;
+ u32 tx_frame_sz = tx_queue->tx_req->req.tp_frame_size;
+ u32 tx_frame_nr = tx_queue->tx_req->req.tp_frame_nr;
+ u32 tx_block_nr = tx_queue->tx_req->req.tp_block_nr;
int block = 0;
int n_send_req = 0, n_avail = 0, n_sending = 0, n_tot = 0, n_wrong = 0;
u8 *tx_block_start = tx_queue->tx_ring[block];
u32 tx_frame = tx_queue->next_tx_frame;
- tpacket3_hdr_t *tph;
+ tpacket3_hdr_t *tph3;
+ tpacket2_hdr_t *tph2;
s = format (s, "\n%UTX Queue %u:", format_white_space, indent,
tx_queue->queue_id);
format_white_space, indent + 2, tx_block_sz, tx_block_nr,
tx_frame_sz, tx_frame_nr);
s = format (s, " next frame:%d", tx_queue->next_tx_frame);
-
- do
- {
- tph = (tpacket3_hdr_t *) (tx_block_start + tx_frame * tx_frame_sz);
- tx_frame = (tx_frame + 1) % tx_frame_nr;
- if (tph->tp_status == 0)
- n_avail++;
- else if (tph->tp_status & TP_STATUS_SEND_REQUEST)
- n_send_req++;
- else if (tph->tp_status & TP_STATUS_SENDING)
- n_sending++;
- else
- n_wrong++;
- n_tot++;
- }
- while (tx_frame != tx_queue->next_tx_frame);
+ if (apif->version & TPACKET_V3)
+ do
+ {
+ tph3 =
+ (tpacket3_hdr_t *) (tx_block_start + tx_frame * tx_frame_sz);
+ tx_frame = (tx_frame + 1) % tx_frame_nr;
+ if (tph3->tp_status == 0)
+ n_avail++;
+ else if (tph3->tp_status & TP_STATUS_SEND_REQUEST)
+ n_send_req++;
+ else if (tph3->tp_status & TP_STATUS_SENDING)
+ n_sending++;
+ else
+ n_wrong++;
+ n_tot++;
+ }
+ while (tx_frame != tx_queue->next_tx_frame);
+ else
+ do
+ {
+ tph2 =
+ (tpacket2_hdr_t *) (tx_block_start + tx_frame * tx_frame_sz);
+ tx_frame = (tx_frame + 1) % tx_frame_nr;
+ if (tph2->tp_status == 0)
+ n_avail++;
+ else if (tph2->tp_status & TP_STATUS_SEND_REQUEST)
+ n_send_req++;
+ else if (tph2->tp_status & TP_STATUS_SENDING)
+ n_sending++;
+ else
+ n_wrong++;
+ n_tot++;
+ }
+ while (tx_frame != tx_queue->next_tx_frame);
s =
format (s, "\n%Uavailable:%d request:%d sending:%d wrong:%d total:%d",
format_white_space, indent + 2, n_avail, n_send_req, n_sending,
s = format (s, "af_packet: hw_if_index %u tx-queue %u", t->hw_if_index,
t->queue_id);
- s =
- format (s,
- "\n%Utpacket3_hdr:\n%Ustatus 0x%x len %u snaplen %u mac %u net %u"
- "\n%Usec 0x%x nsec 0x%x vlan %U"
+ if (t->is_v2)
+ {
+ s = format (
+ s,
+ "\n%Utpacket2_hdr:\n%Ustatus 0x%x len %u snaplen %u mac %u net %u"
+ "\n%Usec 0x%x nsec 0x%x vlan %U"
#ifdef TP_STATUS_VLAN_TPID_VALID
- " vlan_tpid %u"
+ " vlan_tpid %u"
#endif
- ,
- format_white_space, indent + 2, format_white_space, indent + 4,
- t->tph.tp_status, t->tph.tp_len, t->tph.tp_snaplen, t->tph.tp_mac,
- t->tph.tp_net, format_white_space, indent + 4, t->tph.tp_sec,
- t->tph.tp_nsec, format_ethernet_vlan_tci, t->tph.hv1.tp_vlan_tci
+ ,
+ format_white_space, indent + 2, format_white_space, indent + 4,
+ t->tph2.tp_status, t->tph2.tp_len, t->tph2.tp_snaplen, t->tph2.tp_mac,
+ t->tph2.tp_net, format_white_space, indent + 4, t->tph2.tp_sec,
+ t->tph2.tp_nsec, format_ethernet_vlan_tci, t->tph2.tp_vlan_tci
#ifdef TP_STATUS_VLAN_TPID_VALID
- ,
- t->tph.hv1.tp_vlan_tpid
+ ,
+ t->tph2.tp_vlan_tpid
#endif
- );
-
+ );
+ }
+ else
+ {
+ s = format (
+ s,
+ "\n%Utpacket3_hdr:\n%Ustatus 0x%x len %u snaplen %u mac %u net %u"
+ "\n%Usec 0x%x nsec 0x%x vlan %U"
+#ifdef TP_STATUS_VLAN_TPID_VALID
+ " vlan_tpid %u"
+#endif
+ ,
+ format_white_space, indent + 2, format_white_space, indent + 4,
+ t->tph3.tp_status, t->tph3.tp_len, t->tph3.tp_snaplen, t->tph3.tp_mac,
+ t->tph3.tp_net, format_white_space, indent + 4, t->tph3.tp_sec,
+ t->tph3.tp_nsec, format_ethernet_vlan_tci, t->tph3.hv1.tp_vlan_tci
+#ifdef TP_STATUS_VLAN_TPID_VALID
+ ,
+ t->tph3.hv1.tp_vlan_tpid
+#endif
+ );
+ }
s = format (s,
"\n%Uvnet-hdr:\n%Uflags 0x%02x gso_type 0x%02x hdr_len %u"
"\n%Ugso_size %u csum_start %u csum_offset %u",
static void
af_packet_tx_trace (vlib_main_t *vm, vlib_node_runtime_t *node,
- vlib_buffer_t *b0, u32 bi, tpacket3_hdr_t *tph,
+ vlib_buffer_t *b0, u32 bi, void *tph,
vnet_virtio_net_hdr_t *vnet_hdr, u32 hw_if_index,
- u16 queue_id)
+ u16 queue_id, u8 is_v2)
{
af_packet_tx_trace_t *t;
t = vlib_add_trace (vm, node, b0, sizeof (t[0]));
t->hw_if_index = hw_if_index;
t->queue_id = queue_id;
t->buffer_index = bi;
+ t->is_v2 = is_v2;
- clib_memcpy_fast (&t->tph, tph, sizeof (*tph));
+ if (is_v2)
+ clib_memcpy_fast (&t->tph2, (tpacket2_hdr_t *) tph,
+ sizeof (tpacket2_hdr_t));
+ else
+ clib_memcpy_fast (&t->tph3, (tpacket3_hdr_t *) tph,
+ sizeof (tpacket3_hdr_t));
clib_memcpy_fast (&t->vnet_hdr, vnet_hdr, sizeof (*vnet_hdr));
clib_memcpy_fast (&t->buffer, b0, sizeof (*b0) - sizeof (b0->pre_data));
clib_memcpy_fast (t->buffer.pre_data, vlib_buffer_get_current (b0),
af_packet_queue_t *tx_queue = vec_elt_at_index (apif->tx_queues, queue_id);
u32 block = 0, frame_size = 0, frame_num = 0, tx_frame = 0;
u8 *block_start = 0;
- tpacket3_hdr_t *tph = 0;
+ tpacket3_hdr_t *tph3 = 0;
+ tpacket2_hdr_t *tph2 = 0;
u32 frame_not_ready = 0;
u8 is_cksum_gso_enabled = (apif->is_cksum_gso_enabled == 1) ? 1 : 0;
+ u32 tpacket_align = 0;
+ u8 is_v2 = (apif->version == TPACKET_V2) ? 1 : 0;
if (tf->shared_queue)
clib_spinlock_lock (&tx_queue->lockp);
- frame_size = tx_queue->tx_req->tp_frame_size;
- frame_num = tx_queue->tx_req->tp_frame_nr;
+ frame_size = tx_queue->tx_req->req.tp_frame_size;
+ frame_num = tx_queue->tx_req->req.tp_frame_nr;
block_start = tx_queue->tx_ring[block];
tx_frame = tx_queue->next_tx_frame;
-
- while (n_left)
+ if (is_v2)
{
- u32 len;
- vnet_virtio_net_hdr_t *vnet_hdr = 0;
- u32 offset = 0;
- vlib_buffer_t *b0 = 0, *b0_first = 0;
- u32 bi, bi_first;
-
- bi = bi_first = buffers[0];
- n_left--;
- buffers++;
-
- tph = (tpacket3_hdr_t *) (block_start + tx_frame * frame_size);
- if (PREDICT_FALSE (tph->tp_status &
- (TP_STATUS_SEND_REQUEST | TP_STATUS_SENDING)))
+ tpacket_align = TPACKET_ALIGN (sizeof (tpacket2_hdr_t));
+ while (n_left)
{
- frame_not_ready++;
- goto next;
- }
+ u32 len;
+ vnet_virtio_net_hdr_t *vnet_hdr = 0;
+ u32 offset = 0;
+ vlib_buffer_t *b0 = 0, *b0_first = 0;
+ u32 bi, bi_first;
+
+ bi = bi_first = buffers[0];
+ n_left--;
+ buffers++;
+
+ tph2 = (tpacket2_hdr_t *) (block_start + tx_frame * frame_size);
+ if (PREDICT_FALSE (tph2->tp_status &
+ (TP_STATUS_SEND_REQUEST | TP_STATUS_SENDING)))
+ {
+ frame_not_ready++;
+ goto nextv2;
+ }
- b0_first = b0 = vlib_get_buffer (vm, bi);
+ b0_first = b0 = vlib_get_buffer (vm, bi);
- if (PREDICT_TRUE (is_cksum_gso_enabled))
- {
- vnet_hdr =
- (vnet_virtio_net_hdr_t *) ((u8 *) tph + TPACKET_ALIGN (sizeof (
- tpacket3_hdr_t)));
+ if (PREDICT_TRUE (is_cksum_gso_enabled))
+ {
+ vnet_hdr =
+ (vnet_virtio_net_hdr_t *) ((u8 *) tph2 + tpacket_align);
- clib_memset_u8 (vnet_hdr, 0, sizeof (vnet_virtio_net_hdr_t));
- offset = sizeof (vnet_virtio_net_hdr_t);
+ clib_memset_u8 (vnet_hdr, 0, sizeof (vnet_virtio_net_hdr_t));
+ offset = sizeof (vnet_virtio_net_hdr_t);
- if (b0->flags & VNET_BUFFER_F_GSO)
- fill_gso_offload (b0, vnet_hdr);
- else if (b0->flags & VNET_BUFFER_F_OFFLOAD)
- fill_cksum_offload (b0, vnet_hdr);
- }
-
- len = b0->current_length;
- clib_memcpy_fast ((u8 *) tph + TPACKET_ALIGN (sizeof (tpacket3_hdr_t)) +
- offset,
- vlib_buffer_get_current (b0), len);
- offset += len;
+ if (b0->flags & VNET_BUFFER_F_GSO)
+ fill_gso_offload (b0, vnet_hdr);
+ else if (b0->flags & VNET_BUFFER_F_OFFLOAD)
+ fill_cksum_offload (b0, vnet_hdr);
+ }
- while (b0->flags & VLIB_BUFFER_NEXT_PRESENT)
- {
- b0 = vlib_get_buffer (vm, b0->next_buffer);
len = b0->current_length;
- clib_memcpy_fast ((u8 *) tph +
- TPACKET_ALIGN (sizeof (tpacket3_hdr_t)) + offset,
+ clib_memcpy_fast ((u8 *) tph2 + tpacket_align + offset,
vlib_buffer_get_current (b0), len);
offset += len;
- }
- tph->tp_len = tph->tp_snaplen = offset;
- tph->tp_status = TP_STATUS_SEND_REQUEST;
- n_sent++;
+ while (b0->flags & VLIB_BUFFER_NEXT_PRESENT)
+ {
+ b0 = vlib_get_buffer (vm, b0->next_buffer);
+ len = b0->current_length;
+ clib_memcpy_fast ((u8 *) tph2 + tpacket_align + offset,
+ vlib_buffer_get_current (b0), len);
+ offset += len;
+ }
+
+ tph2->tp_len = tph2->tp_snaplen = offset;
+ tph2->tp_status = TP_STATUS_SEND_REQUEST;
+ n_sent++;
- if (PREDICT_FALSE (b0_first->flags & VLIB_BUFFER_IS_TRACED))
+ if (PREDICT_FALSE (b0_first->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ if (PREDICT_TRUE (is_cksum_gso_enabled))
+ af_packet_tx_trace (vm, node, b0_first, bi_first, tph2,
+ vnet_hdr, apif->hw_if_index, queue_id, 1);
+ else
+ {
+ vnet_virtio_net_hdr_t vnet_hdr2 = {};
+ af_packet_tx_trace (vm, node, b0_first, bi_first, tph2,
+ &vnet_hdr2, apif->hw_if_index, queue_id,
+ 1);
+ }
+ }
+ tx_frame = (tx_frame + 1) % frame_num;
+
+ nextv2:
+ /* check if we've exhausted the ring */
+ if (PREDICT_FALSE (frame_not_ready + n_sent == frame_num))
+ break;
+ }
+ }
+ else
+ {
+ tpacket_align = TPACKET_ALIGN (sizeof (tpacket3_hdr_t));
+
+ while (n_left)
{
+ u32 len;
+ vnet_virtio_net_hdr_t *vnet_hdr = 0;
+ u32 offset = 0;
+ vlib_buffer_t *b0 = 0, *b0_first = 0;
+ u32 bi, bi_first;
+
+ bi = bi_first = buffers[0];
+ n_left--;
+ buffers++;
+
+ tph3 = (tpacket3_hdr_t *) (block_start + tx_frame * frame_size);
+ if (PREDICT_FALSE (tph3->tp_status &
+ (TP_STATUS_SEND_REQUEST | TP_STATUS_SENDING)))
+ {
+ frame_not_ready++;
+ goto nextv3;
+ }
+
+ b0_first = b0 = vlib_get_buffer (vm, bi);
+
if (PREDICT_TRUE (is_cksum_gso_enabled))
- af_packet_tx_trace (vm, node, b0_first, bi_first, tph, vnet_hdr,
- apif->hw_if_index, queue_id);
- else
{
- vnet_virtio_net_hdr_t vnet_hdr2 = {};
- af_packet_tx_trace (vm, node, b0_first, bi_first, tph,
- &vnet_hdr2, apif->hw_if_index, queue_id);
+ vnet_hdr =
+ (vnet_virtio_net_hdr_t *) ((u8 *) tph3 + tpacket_align);
+
+ clib_memset_u8 (vnet_hdr, 0, sizeof (vnet_virtio_net_hdr_t));
+ offset = sizeof (vnet_virtio_net_hdr_t);
+
+ if (b0->flags & VNET_BUFFER_F_GSO)
+ fill_gso_offload (b0, vnet_hdr);
+ else if (b0->flags & VNET_BUFFER_F_OFFLOAD)
+ fill_cksum_offload (b0, vnet_hdr);
}
- }
- tx_frame = (tx_frame + 1) % frame_num;
- next:
- /* check if we've exhausted the ring */
- if (PREDICT_FALSE (frame_not_ready + n_sent == frame_num))
- break;
- }
+ len = b0->current_length;
+ clib_memcpy_fast ((u8 *) tph3 + tpacket_align + offset,
+ vlib_buffer_get_current (b0), len);
+ offset += len;
+
+ while (b0->flags & VLIB_BUFFER_NEXT_PRESENT)
+ {
+ b0 = vlib_get_buffer (vm, b0->next_buffer);
+ len = b0->current_length;
+ clib_memcpy_fast ((u8 *) tph3 + tpacket_align + offset,
+ vlib_buffer_get_current (b0), len);
+ offset += len;
+ }
+
+ tph3->tp_len = tph3->tp_snaplen = offset;
+ tph3->tp_status = TP_STATUS_SEND_REQUEST;
+ n_sent++;
+ if (PREDICT_FALSE (b0_first->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ if (PREDICT_TRUE (is_cksum_gso_enabled))
+ af_packet_tx_trace (vm, node, b0_first, bi_first, tph3,
+ vnet_hdr, apif->hw_if_index, queue_id, 0);
+ else
+ {
+ vnet_virtio_net_hdr_t vnet_hdr2 = {};
+ af_packet_tx_trace (vm, node, b0_first, bi_first, tph3,
+ &vnet_hdr2, apif->hw_if_index, queue_id,
+ 0);
+ }
+ }
+ tx_frame = (tx_frame + 1) % frame_num;
+
+ nextv3:
+ /* check if we've exhausted the ring */
+ if (PREDICT_FALSE (frame_not_ready + n_sent == frame_num))
+ break;
+ }
+ }
CLIB_MEMORY_BARRIER ();
if (PREDICT_TRUE (n_sent || tx_queue->is_tx_pending))
u32 pkt_num;
void *block_start;
block_desc_t bd;
- tpacket3_hdr_t tph;
+ union
+ {
+ tpacket3_hdr_t tph3;
+ tpacket2_hdr_t tph2;
+ };
vnet_virtio_net_hdr_t vnet_hdr;
+ u8 is_v3;
} af_packet_input_trace_t;
static u8 *
s = format (s, "af_packet: hw_if_index %d rx-queue %u next-index %d",
t->hw_if_index, t->queue_id, t->next_index);
- s = format (
- s, "\n%Ublock %u:\n%Uaddress %p version %u seq_num %lu pkt_num %u",
- format_white_space, indent + 2, t->block, format_white_space, indent + 4,
- t->block_start, t->bd.version, t->bd.hdr.bh1.seq_num, t->pkt_num);
- s =
- format (s,
- "\n%Utpacket3_hdr:\n%Ustatus 0x%x len %u snaplen %u mac %u net %u"
- "\n%Usec 0x%x nsec 0x%x vlan %U"
+ if (t->is_v3)
+ {
+ s = format (
+ s, "\n%Ublock %u:\n%Uaddress %p version %u seq_num %lu pkt_num %u",
+ format_white_space, indent + 2, t->block, format_white_space,
+ indent + 4, t->block_start, t->bd.version, t->bd.hdr.bh1.seq_num,
+ t->pkt_num);
+ s = format (
+ s,
+ "\n%Utpacket3_hdr:\n%Ustatus 0x%x len %u snaplen %u mac %u net %u"
+ "\n%Usec 0x%x nsec 0x%x vlan %U"
#ifdef TP_STATUS_VLAN_TPID_VALID
- " vlan_tpid %u"
+ " vlan_tpid %u"
#endif
- ,
- format_white_space, indent + 2, format_white_space, indent + 4,
- t->tph.tp_status, t->tph.tp_len, t->tph.tp_snaplen, t->tph.tp_mac,
- t->tph.tp_net, format_white_space, indent + 4, t->tph.tp_sec,
- t->tph.tp_nsec, format_ethernet_vlan_tci, t->tph.hv1.tp_vlan_tci
+ ,
+ format_white_space, indent + 2, format_white_space, indent + 4,
+ t->tph3.tp_status, t->tph3.tp_len, t->tph3.tp_snaplen, t->tph3.tp_mac,
+ t->tph3.tp_net, format_white_space, indent + 4, t->tph3.tp_sec,
+ t->tph3.tp_nsec, format_ethernet_vlan_tci, t->tph3.hv1.tp_vlan_tci
#ifdef TP_STATUS_VLAN_TPID_VALID
- ,
- t->tph.hv1.tp_vlan_tpid
+ ,
+ t->tph3.hv1.tp_vlan_tpid
#endif
- );
+ );
+ }
+ else
+ {
+ s = format (
+ s,
+ "\n%Utpacket2_hdr:\n%Ustatus 0x%x len %u snaplen %u mac %u net %u"
+ "\n%Usec 0x%x nsec 0x%x vlan %U"
+#ifdef TP_STATUS_VLAN_TPID_VALID
+ " vlan_tpid %u"
+#endif
+ ,
+ format_white_space, indent + 2, format_white_space, indent + 4,
+ t->tph2.tp_status, t->tph2.tp_len, t->tph2.tp_snaplen, t->tph2.tp_mac,
+ t->tph2.tp_net, format_white_space, indent + 4, t->tph2.tp_sec,
+ t->tph2.tp_nsec, format_ethernet_vlan_tci, t->tph2.tp_vlan_tci
+#ifdef TP_STATUS_VLAN_TPID_VALID
+ ,
+ t->tph2.tp_vlan_tpid
+#endif
+ );
+ }
s = format (s,
"\n%Uvnet-hdr:\n%Uflags 0x%02x gso_type 0x%02x hdr_len %u"
}
always_inline uword
-af_packet_device_input_fn (vlib_main_t *vm, vlib_node_runtime_t *node,
- vlib_frame_t *frame, af_packet_if_t *apif,
- u16 queue_id, u8 is_cksum_gso_enabled)
+af_packet_v3_device_input_fn (vlib_main_t *vm, vlib_node_runtime_t *node,
+ vlib_frame_t *frame, af_packet_if_t *apif,
+ u16 queue_id, u8 is_cksum_gso_enabled)
{
af_packet_main_t *apm = &af_packet_main;
af_packet_queue_t *rx_queue = vec_elt_at_index (apif->rx_queues, queue_id);
u32 total = 0;
u32 *to_next = 0;
u32 block = rx_queue->next_rx_block;
- u32 block_nr = rx_queue->rx_req->tp_block_nr;
+ u32 block_nr = rx_queue->rx_req->req3.tp_block_nr;
u8 *block_start = 0;
uword n_trace = vlib_get_trace_count (vm, node);
u32 thread_index = vm->thread_index;
u32 n_buffer_bytes = vlib_buffer_get_default_data_size (vm);
- u32 min_bufs = rx_queue->rx_req->tp_frame_size / n_buffer_bytes;
+ u32 min_bufs = rx_queue->rx_req->req3.tp_frame_size / n_buffer_bytes;
u32 num_pkts = 0;
u32 rx_frame_offset = 0;
block_desc_t *bd = 0;
af_packet_input_trace_t *tr;
vlib_set_trace_count (vm, node, --n_trace);
tr = vlib_add_trace (vm, node, first_b0, sizeof (*tr));
+ tr->is_v3 = 1;
tr->next_index = next0;
tr->hw_if_index = apif->hw_if_index;
tr->queue_id = queue_id;
tr->block_start = bd;
tr->pkt_num = bd->hdr.bh1.num_pkts - num_pkts;
clib_memcpy_fast (&tr->bd, bd, sizeof (block_desc_t));
- clib_memcpy_fast (&tr->tph, tph, sizeof (tpacket3_hdr_t));
+ clib_memcpy_fast (&tr->tph3, tph, sizeof (tpacket3_hdr_t));
if (is_cksum_gso_enabled)
clib_memcpy_fast (&tr->vnet_hdr, vnet_hdr,
sizeof (vnet_virtio_net_hdr_t));
return n_rx_packets;
}
+always_inline uword
+af_packet_v2_device_input_fn (vlib_main_t *vm, vlib_node_runtime_t *node,
+ vlib_frame_t *frame, af_packet_if_t *apif,
+ u16 queue_id, u8 is_cksum_gso_enabled)
+{
+ af_packet_main_t *apm = &af_packet_main;
+ af_packet_queue_t *rx_queue = vec_elt_at_index (apif->rx_queues, queue_id);
+ tpacket2_hdr_t *tph;
+ u32 next_index;
+ u32 block = 0;
+ u32 rx_frame;
+ u32 n_free_bufs;
+ u32 n_rx_packets = 0;
+ u32 n_rx_bytes = 0;
+ u32 *to_next = 0;
+ u32 frame_size = rx_queue->rx_req->req.tp_frame_size;
+ u32 frame_num = rx_queue->rx_req->req.tp_frame_nr;
+ u8 *block_start = rx_queue->rx_ring[block];
+ uword n_trace = vlib_get_trace_count (vm, node);
+ u32 thread_index = vm->thread_index;
+ u32 n_buffer_bytes = vlib_buffer_get_default_data_size (vm);
+ u32 min_bufs = rx_queue->rx_req->req.tp_frame_size / n_buffer_bytes;
+ u8 is_ip = (apif->mode == AF_PACKET_IF_MODE_IP);
+ vlib_buffer_t bt = {};
+
+ if (is_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))
+ {
+ vec_validate (apm->rx_buffers[thread_index],
+ VLIB_FRAME_SIZE + n_free_bufs - 1);
+ n_free_bufs += vlib_buffer_alloc (
+ vm, &apm->rx_buffers[thread_index][n_free_bufs], VLIB_FRAME_SIZE);
+ vec_set_len (apm->rx_buffers[thread_index], n_free_bufs);
+ }
+
+ rx_frame = rx_queue->next_rx_frame;
+ tph = (tpacket2_hdr_t *) (block_start + rx_frame * frame_size);
+ while ((tph->tp_status & TP_STATUS_USER) && (n_free_bufs > min_bufs))
+ {
+ vlib_buffer_t *b0 = 0, *first_b0 = 0, *prev_b0 = 0;
+ u32 next0 = next_index;
+
+ u32 n_left_to_next;
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+ while ((tph->tp_status & TP_STATUS_USER) && (n_free_bufs > min_bufs) &&
+ n_left_to_next)
+ {
+ vnet_virtio_net_hdr_t *vnet_hdr = 0;
+ u32 data_len = tph->tp_snaplen;
+ u32 offset = 0;
+ u32 bi0 = 0, first_bi0 = 0;
+ u8 l4_hdr_sz = 0;
+
+ if (is_cksum_gso_enabled)
+ vnet_hdr =
+ (vnet_virtio_net_hdr_t *) ((u8 *) tph + tph->tp_mac -
+ sizeof (vnet_virtio_net_hdr_t));
+ while (data_len)
+ {
+ /* grab free buffer */
+ u32 last_empty_buffer =
+ vec_len (apm->rx_buffers[thread_index]) - 1;
+ bi0 = apm->rx_buffers[thread_index][last_empty_buffer];
+ b0 = vlib_get_buffer (vm, bi0);
+ vec_set_len (apm->rx_buffers[thread_index], last_empty_buffer);
+ n_free_bufs--;
+
+ /* copy data */
+ u32 bytes_to_copy =
+ data_len > n_buffer_bytes ? n_buffer_bytes : data_len;
+ u32 vlan_len = 0;
+ u32 bytes_copied = 0;
+ b0->current_data = 0;
+ /* Kernel removes VLAN headers, so reconstruct VLAN */
+ if (PREDICT_FALSE (tph->tp_status & TP_STATUS_VLAN_VALID))
+ {
+ if (PREDICT_TRUE (offset == 0))
+ {
+ clib_memcpy_fast (vlib_buffer_get_current (b0),
+ (u8 *) tph + tph->tp_mac,
+ sizeof (ethernet_header_t));
+ ethernet_header_t *eth = vlib_buffer_get_current (b0);
+ ethernet_vlan_header_t *vlan =
+ (ethernet_vlan_header_t *) (eth + 1);
+ vlan->priority_cfi_and_id =
+ clib_host_to_net_u16 (tph->tp_vlan_tci);
+ vlan->type = eth->type;
+ eth->type = clib_host_to_net_u16 (ETHERNET_TYPE_VLAN);
+ vlan_len = sizeof (ethernet_vlan_header_t);
+ bytes_copied = sizeof (ethernet_header_t);
+ }
+ }
+ clib_memcpy_fast (((u8 *) vlib_buffer_get_current (b0)) +
+ bytes_copied + vlan_len,
+ (u8 *) tph + tph->tp_mac + offset +
+ bytes_copied,
+ (bytes_to_copy - bytes_copied));
+
+ /* fill buffer header */
+ b0->current_length = bytes_to_copy + vlan_len;
+
+ if (offset == 0)
+ {
+ b0->total_length_not_including_first_buffer = 0;
+ b0->flags = VLIB_BUFFER_TOTAL_LENGTH_VALID;
+ vnet_buffer (b0)->sw_if_index[VLIB_RX] = apif->sw_if_index;
+ vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~0;
+ first_bi0 = bi0;
+ first_b0 = vlib_get_buffer (vm, first_bi0);
+
+ if (is_cksum_gso_enabled)
+ {
+ if (vnet_hdr->flags & VIRTIO_NET_HDR_F_NEEDS_CSUM)
+ fill_cksum_offload (first_b0, &l4_hdr_sz, is_ip);
+ if (vnet_hdr->gso_type & (VIRTIO_NET_HDR_GSO_TCPV4 |
+ VIRTIO_NET_HDR_GSO_TCPV6))
+ fill_gso_offload (first_b0, vnet_hdr->gso_size,
+ l4_hdr_sz);
+ }
+ }
+ else
+ buffer_add_to_chain (b0, first_b0, prev_b0, bi0);
+
+ prev_b0 = b0;
+ offset += bytes_to_copy;
+ data_len -= bytes_to_copy;
+ }
+ n_rx_packets++;
+ n_rx_bytes += tph->tp_snaplen;
+ to_next[0] = first_bi0;
+ to_next += 1;
+ n_left_to_next--;
+
+ /* drop partial packets */
+ if (PREDICT_FALSE (tph->tp_len != tph->tp_snaplen))
+ {
+ next0 = VNET_DEVICE_INPUT_NEXT_DROP;
+ first_b0->error =
+ node->errors[AF_PACKET_INPUT_ERROR_PARTIAL_PKT];
+ }
+ else
+ {
+ if (PREDICT_FALSE (is_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 */
+ if (PREDICT_FALSE (n_trace > 0 &&
+ vlib_trace_buffer (vm, node, next0, first_b0,
+ /* follow_chain */ 0)))
+ {
+ af_packet_input_trace_t *tr;
+ vlib_set_trace_count (vm, node, --n_trace);
+ tr = vlib_add_trace (vm, node, first_b0, sizeof (*tr));
+ tr->is_v3 = 0;
+ tr->next_index = next0;
+ tr->hw_if_index = apif->hw_if_index;
+ tr->queue_id = queue_id;
+ clib_memcpy_fast (&tr->tph2, tph, sizeof (struct tpacket2_hdr));
+ if (is_cksum_gso_enabled)
+ clib_memcpy_fast (&tr->vnet_hdr, vnet_hdr,
+ sizeof (vnet_virtio_net_hdr_t));
+ else
+ clib_memset_u8 (&tr->vnet_hdr, 0,
+ sizeof (vnet_virtio_net_hdr_t));
+ }
+
+ /* enque and take next packet */
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
+ n_left_to_next, first_bi0, next0);
+
+ /* next packet */
+ tph->tp_status = TP_STATUS_KERNEL;
+ rx_frame = (rx_frame + 1) % frame_num;
+ tph = (struct tpacket2_hdr *) (block_start + rx_frame * frame_size);
+ }
+
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ rx_queue->next_rx_frame = rx_frame;
+
+ vlib_increment_combined_counter (
+ vnet_get_main ()->interface_main.combined_sw_if_counters +
+ VNET_INTERFACE_COUNTER_RX,
+ vlib_get_thread_index (), apif->hw_if_index, n_rx_packets, n_rx_bytes);
+
+ vnet_device_increment_rx_packets (thread_index, n_rx_packets);
+ return n_rx_packets;
+}
+
+always_inline uword
+af_packet_device_input_fn (vlib_main_t *vm, vlib_node_runtime_t *node,
+ vlib_frame_t *frame, af_packet_if_t *apif,
+ u16 queue_id, u8 is_cksum_gso_enabled)
+
+{
+ if (apif->version == TPACKET_V3)
+ return af_packet_v3_device_input_fn (vm, node, frame, apif, queue_id,
+ is_cksum_gso_enabled);
+ else
+ return af_packet_v2_device_input_fn (vm, node, frame, apif, queue_id,
+ is_cksum_gso_enabled);
+}
+
VLIB_NODE_FN (af_packet_input_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
Code Review / vpp.git / commitdiff