_(TXRING_FATAL, "tx sendto fatal failure") \
_(TXRING_OVERRUN, "tx ring overrun")
-typedef enum {
+typedef enum
+{
#define _(f,s) AF_PACKET_TX_ERROR_##f,
foreach_af_packet_tx_func_error
#undef _
- AF_PACKET_TX_N_ERROR,
+ AF_PACKET_TX_N_ERROR,
} af_packet_tx_func_error_t;
-static char * af_packet_tx_func_error_strings[] = {
+static char *af_packet_tx_func_error_strings[] = {
#define _(n,s) s,
- foreach_af_packet_tx_func_error
+ foreach_af_packet_tx_func_error
#undef _
};
-static u8 * format_af_packet_device_name (u8 * s, va_list * args)
+static u8 *
+format_af_packet_device_name (u8 * s, va_list * args)
{
u32 i = va_arg (*args, u32);
- af_packet_main_t * apm = &af_packet_main;
- af_packet_if_t * apif = pool_elt_at_index (apm->interfaces, i);
+ af_packet_main_t *apm = &af_packet_main;
+ af_packet_if_t *apif = pool_elt_at_index (apm->interfaces, i);
s = format (s, "host-%s", apif->host_if_name);
return s;
}
-static u8 * format_af_packet_device (u8 * s, va_list * args)
+static u8 *
+format_af_packet_device (u8 * s, va_list * args)
{
s = format (s, "Linux PACKET socket interface");
return s;
}
-static u8 * format_af_packet_tx_trace (u8 * s, va_list * args)
+static u8 *
+format_af_packet_tx_trace (u8 * s, va_list * args)
{
s = format (s, "Unimplemented...");
return s;
static uword
af_packet_interface_tx (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- af_packet_main_t * apm = &af_packet_main;
- u32 * buffers = vlib_frame_args (frame);
+ af_packet_main_t *apm = &af_packet_main;
+ u32 *buffers = vlib_frame_args (frame);
u32 n_left = frame->n_vectors;
u32 n_sent = 0;
- vnet_interface_output_runtime_t * rd = (void *) node->runtime_data;
- af_packet_if_t * apif = pool_elt_at_index (apm->interfaces, rd->dev_instance);
+ vnet_interface_output_runtime_t *rd = (void *) node->runtime_data;
+ af_packet_if_t *apif =
+ pool_elt_at_index (apm->interfaces, rd->dev_instance);
int block = 0;
u32 block_size = apif->tx_req->tp_block_size;
u32 frame_size = apif->tx_req->tp_frame_size;
u32 frame_num = apif->tx_req->tp_frame_nr;
- u8 * block_start = apif->tx_ring + block * block_size;
+ u8 *block_start = apif->tx_ring + block * block_size;
u32 tx_frame = apif->next_tx_frame;
- struct tpacket2_hdr * tph;
+ struct tpacket2_hdr *tph;
u32 frame_not_ready = 0;
- while(n_left > 0)
+ while (n_left > 0)
{
u32 len;
u32 offset = 0;
- vlib_buffer_t * b0;
+ vlib_buffer_t *b0;
n_left--;
u32 bi = buffers[0];
buffers++;
tph = (struct tpacket2_hdr *) (block_start + tx_frame * frame_size);
- if (PREDICT_FALSE(tph->tp_status & (TP_STATUS_SEND_REQUEST | TP_STATUS_SENDING)))
+ if (PREDICT_FALSE
+ (tph->tp_status & (TP_STATUS_SEND_REQUEST | TP_STATUS_SENDING)))
{
frame_not_ready++;
goto next;
{
b0 = vlib_get_buffer (vm, bi);
len = b0->current_length;
- clib_memcpy((u8 *) tph + TPACKET_ALIGN(sizeof(struct tpacket2_hdr)) + offset,
- vlib_buffer_get_current(b0), len);
+ clib_memcpy ((u8 *) tph +
+ TPACKET_ALIGN (sizeof (struct tpacket2_hdr)) + offset,
+ vlib_buffer_get_current (b0), len);
offset += len;
}
while ((bi = b0->next_buffer));
tph->tp_len = tph->tp_snaplen = offset;
tph->tp_status = TP_STATUS_SEND_REQUEST;
n_sent++;
-next:
+ next:
/* check if we've exhausted the ring */
- if (PREDICT_FALSE(frame_not_ready + n_sent == frame_num))
- break;
+ if (PREDICT_FALSE (frame_not_ready + n_sent == frame_num))
+ break;
tx_frame = (tx_frame + 1) % frame_num;
}
- CLIB_MEMORY_BARRIER();
+ CLIB_MEMORY_BARRIER ();
- if (PREDICT_TRUE(n_sent))
+ if (PREDICT_TRUE (n_sent))
{
apif->next_tx_frame = tx_frame;
- if (PREDICT_FALSE(sendto(apif->fd, NULL, 0,
- MSG_DONTWAIT, NULL, 0) == -1))
- {
- /* Uh-oh, drop & move on, but count whether it was fatal or not.
- * Note that we have no reliable way to properly determine the
- * disposition of the packets we just enqueued for delivery.
- */
- vlib_error_count (vm, node->node_index,
- unix_error_is_fatal(errno) ?
- AF_PACKET_TX_ERROR_TXRING_FATAL :
- AF_PACKET_TX_ERROR_TXRING_EAGAIN,
- n_sent);
- }
+ if (PREDICT_FALSE (sendto (apif->fd, NULL, 0,
+ MSG_DONTWAIT, NULL, 0) == -1))
+ {
+ /* Uh-oh, drop & move on, but count whether it was fatal or not.
+ * Note that we have no reliable way to properly determine the
+ * disposition of the packets we just enqueued for delivery.
+ */
+ vlib_error_count (vm, node->node_index,
+ unix_error_is_fatal (errno) ?
+ AF_PACKET_TX_ERROR_TXRING_FATAL :
+ AF_PACKET_TX_ERROR_TXRING_EAGAIN, n_sent);
+ }
}
- if (PREDICT_FALSE(frame_not_ready))
- vlib_error_count (vm, node->node_index, AF_PACKET_TX_ERROR_FRAME_NOT_READY,
- frame_not_ready);
+ if (PREDICT_FALSE (frame_not_ready))
+ vlib_error_count (vm, node->node_index,
+ AF_PACKET_TX_ERROR_FRAME_NOT_READY, frame_not_ready);
- if (PREDICT_FALSE(frame_not_ready + n_sent == frame_num))
+ if (PREDICT_FALSE (frame_not_ready + n_sent == frame_num))
vlib_error_count (vm, node->node_index, AF_PACKET_TX_ERROR_TXRING_OVERRUN,
- n_left);
+ n_left);
vlib_buffer_free (vm, vlib_frame_args (frame), frame->n_vectors);
return frame->n_vectors;
}
static void
-af_packet_set_interface_next_node (vnet_main_t *vnm, u32 hw_if_index,
- u32 node_index)
+af_packet_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index,
+ u32 node_index)
{
- af_packet_main_t * apm = &af_packet_main;
+ af_packet_main_t *apm = &af_packet_main;
vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
- af_packet_if_t * apif = pool_elt_at_index (apm->interfaces, hw->dev_instance);
+ af_packet_if_t *apif =
+ pool_elt_at_index (apm->interfaces, hw->dev_instance);
/* Shut off redirection */
if (node_index == ~0)
}
apif->per_interface_next_index =
- vlib_node_add_next (vlib_get_main(), af_packet_input_node.index, node_index);
+ vlib_node_add_next (vlib_get_main (), af_packet_input_node.index,
+ node_index);
}
-static void af_packet_clear_hw_interface_counters (u32 instance)
+static void
+af_packet_clear_hw_interface_counters (u32 instance)
{
/* Nothing for now */
}
static clib_error_t *
-af_packet_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
+af_packet_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index,
+ u32 flags)
{
- af_packet_main_t * apm = &af_packet_main;
+ af_packet_main_t *apm = &af_packet_main;
vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
- af_packet_if_t * apif = pool_elt_at_index (apm->interfaces, hw->dev_instance);
+ af_packet_if_t *apif =
+ pool_elt_at_index (apm->interfaces, hw->dev_instance);
u32 hw_flags;
apif->is_admin_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
else
hw_flags = 0;
- vnet_hw_interface_set_flags(vnm, hw_if_index, hw_flags);
+ vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags);
return 0;
}
static clib_error_t *
af_packet_subif_add_del_function (vnet_main_t * vnm,
- u32 hw_if_index,
- struct vnet_sw_interface_t * st,
- int is_add)
+ u32 hw_if_index,
+ struct vnet_sw_interface_t *st, int is_add)
{
/* Nothing for now */
return 0;
}
+/* *INDENT-OFF* */
VNET_DEVICE_CLASS (af_packet_device_class) = {
.name = "af-packet",
.tx_function = af_packet_interface_tx,
VLIB_DEVICE_TX_FUNCTION_MULTIARCH (af_packet_device_class,
af_packet_interface_tx)
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff