#include <vlib/unix/unix.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/feature/feature.h>
-#include <vnet/gso/gro_func.h>
#include <vnet/interface/rx_queue_funcs.h>
#include <vnet/ip/ip4_packet.h>
#include <vnet/ip/ip6_packet.h>
#include <vnet/udp/udp_packet.h>
+#include <vnet/tcp/tcp_packet.h>
#include <vnet/devices/virtio/virtio.h>
-
-#define foreach_virtio_input_error \
- _(BUFFER_ALLOC, "buffer alloc error") \
- _(UNKNOWN, "unknown")
-
-typedef enum
-{
-#define _(f,s) VIRTIO_INPUT_ERROR_##f,
- foreach_virtio_input_error
-#undef _
- VIRTIO_INPUT_N_ERROR,
-} virtio_input_error_t;
+#include <vnet/devices/virtio/virtio_inline.h>
static char *virtio_input_error_strings[] = {
-#define _(n,s) s,
+#define _(n, s) s,
foreach_virtio_input_error
#undef _
};
u32 hw_if_index;
u16 ring;
u16 len;
- virtio_net_hdr_v1_t hdr;
+ vnet_virtio_net_hdr_v1_t hdr;
} virtio_input_trace_t;
static u8 *
}
static_always_inline void
-virtio_refill_vring_split (vlib_main_t * vm, virtio_if_t * vif,
- virtio_if_type_t type, virtio_vring_t * vring,
- const int hdr_sz, u32 node_index)
-{
- u16 used, next, avail, n_slots, n_refill;
- u16 sz = vring->size;
- u16 mask = sz - 1;
-
-more:
- used = vring->desc_in_use;
-
- if (sz - used < sz / 8)
- return;
-
- /* deliver free buffers in chunks of 64 */
- n_refill = clib_min (sz - used, 64);
-
- next = vring->desc_next;
- avail = vring->avail->idx;
- n_slots =
- vlib_buffer_alloc_to_ring_from_pool (vm, vring->buffers, next,
- vring->size, n_refill,
- vring->buffer_pool_index);
-
- if (PREDICT_FALSE (n_slots != n_refill))
- {
- vlib_error_count (vm, node_index,
- VIRTIO_INPUT_ERROR_BUFFER_ALLOC, n_refill - n_slots);
- if (n_slots == 0)
- return;
- }
-
- while (n_slots)
- {
- vring_desc_t *d = &vring->desc[next];;
- vlib_buffer_t *b = vlib_get_buffer (vm, vring->buffers[next]);
- /*
- * current_data may not be initialized with 0 and may contain
- * previous offset. Here we want to make sure, it should be 0
- * initialized.
- */
- b->current_data = -hdr_sz;
- clib_memset (vlib_buffer_get_current (b), 0, hdr_sz);
- d->addr =
- ((type == VIRTIO_IF_TYPE_PCI) ? vlib_buffer_get_current_pa (vm,
- b) :
- pointer_to_uword (vlib_buffer_get_current (b)));
- d->len = vlib_buffer_get_default_data_size (vm) + hdr_sz;
- d->flags = VRING_DESC_F_WRITE;
- vring->avail->ring[avail & mask] = next;
- avail++;
- next = (next + 1) & mask;
- n_slots--;
- used++;
- }
- clib_atomic_store_seq_cst (&vring->avail->idx, avail);
- vring->desc_next = next;
- vring->desc_in_use = used;
- if ((clib_atomic_load_seq_cst (&vring->used->flags) &
- VRING_USED_F_NO_NOTIFY) == 0)
- {
- virtio_kick (vm, vring, vif);
- }
- goto more;
-}
-
-static_always_inline void
-virtio_refill_vring_packed (vlib_main_t * vm, virtio_if_t * vif,
- virtio_if_type_t type, virtio_vring_t * vring,
- const int hdr_sz, u32 node_index)
-{
- u16 used, next, n_slots, n_refill, flags = 0, first_desc_flags;
- u16 sz = vring->size;
-
-more:
- used = vring->desc_in_use;
-
- if (sz == used)
- return;
-
- /* deliver free buffers in chunks of 64 */
- n_refill = clib_min (sz - used, 64);
-
- next = vring->desc_next;
- first_desc_flags = vring->packed_desc[next].flags;
- n_slots =
- vlib_buffer_alloc_to_ring_from_pool (vm, vring->buffers, next,
- sz, n_refill,
- vring->buffer_pool_index);
-
- if (PREDICT_FALSE (n_slots != n_refill))
- {
- vlib_error_count (vm, node_index,
- VIRTIO_INPUT_ERROR_BUFFER_ALLOC, n_refill - n_slots);
- if (n_slots == 0)
- return;
- }
-
- while (n_slots)
- {
- vring_packed_desc_t *d = &vring->packed_desc[next];
- vlib_buffer_t *b = vlib_get_buffer (vm, vring->buffers[next]);
- /*
- * current_data may not be initialized with 0 and may contain
- * previous offset. Here we want to make sure, it should be 0
- * initialized.
- */
- b->current_data = -hdr_sz;
- clib_memset (vlib_buffer_get_current (b), 0, hdr_sz);
- d->addr =
- ((type == VIRTIO_IF_TYPE_PCI) ? vlib_buffer_get_current_pa (vm,
- b) :
- pointer_to_uword (vlib_buffer_get_current (b)));
- d->len = vlib_buffer_get_default_data_size (vm) + hdr_sz;
-
- if (vring->avail_wrap_counter)
- flags = (VRING_DESC_F_AVAIL | VRING_DESC_F_WRITE);
- else
- flags = (VRING_DESC_F_USED | VRING_DESC_F_WRITE);
-
- d->id = next;
- if (vring->desc_next == next)
- first_desc_flags = flags;
- else
- d->flags = flags;
-
- next++;
- if (next >= sz)
- {
- next = 0;
- vring->avail_wrap_counter ^= 1;
- }
- n_slots--;
- used++;
- }
- CLIB_MEMORY_STORE_BARRIER ();
- vring->packed_desc[vring->desc_next].flags = first_desc_flags;
- vring->desc_next = next;
- vring->desc_in_use = used;
- CLIB_MEMORY_BARRIER ();
- if (vring->device_event->flags != VRING_EVENT_F_DISABLE)
- {
- virtio_kick (vm, vring, vif);
- }
-
- goto more;
-}
-
-static_always_inline void
-virtio_needs_csum (vlib_buffer_t * b0, virtio_net_hdr_v1_t * hdr,
- u8 * l4_proto, u8 * l4_hdr_sz, virtio_if_type_t type)
+virtio_needs_csum (vlib_buffer_t *b0, vnet_virtio_net_hdr_v1_t *hdr,
+ u8 *l4_proto, u8 *l4_hdr_sz, virtio_if_type_t type)
{
if (hdr->flags & VIRTIO_NET_HDR_F_NEEDS_CSUM)
{
u16 ethertype = 0, l2hdr_sz = 0;
+ vnet_buffer_oflags_t oflags = 0;
if (type == VIRTIO_IF_TYPE_TUN)
{
(ip4_header_t *) (vlib_buffer_get_current (b0) + l2hdr_sz);
vnet_buffer (b0)->l4_hdr_offset = l2hdr_sz + ip4_header_bytes (ip4);
*l4_proto = ip4->protocol;
+ oflags |= VNET_BUFFER_OFFLOAD_F_IP_CKSUM;
b0->flags |=
- (VNET_BUFFER_F_IS_IP4 | VNET_BUFFER_F_OFFLOAD_IP_CKSUM);
- b0->flags |=
- (VNET_BUFFER_F_L2_HDR_OFFSET_VALID
- | VNET_BUFFER_F_L3_HDR_OFFSET_VALID |
+ (VNET_BUFFER_F_IS_IP4 | VNET_BUFFER_F_L2_HDR_OFFSET_VALID |
+ VNET_BUFFER_F_L3_HDR_OFFSET_VALID |
VNET_BUFFER_F_L4_HDR_OFFSET_VALID);
}
else if (PREDICT_TRUE (ethertype == ETHERNET_TYPE_IP6))
}
if (*l4_proto == IP_PROTOCOL_TCP)
{
- b0->flags |= VNET_BUFFER_F_OFFLOAD_TCP_CKSUM;
+ oflags |= VNET_BUFFER_OFFLOAD_F_TCP_CKSUM;
tcp_header_t *tcp = (tcp_header_t *) (vlib_buffer_get_current (b0) +
vnet_buffer
(b0)->l4_hdr_offset);
}
else if (*l4_proto == IP_PROTOCOL_UDP)
{
- b0->flags |= VNET_BUFFER_F_OFFLOAD_UDP_CKSUM;
+ oflags |= VNET_BUFFER_OFFLOAD_F_UDP_CKSUM;
udp_header_t *udp = (udp_header_t *) (vlib_buffer_get_current (b0) +
vnet_buffer
(b0)->l4_hdr_offset);
*l4_hdr_sz = sizeof (*udp);
}
+ if (oflags)
+ vnet_buffer_offload_flags_set (b0, oflags);
}
}
static_always_inline void
-fill_gso_buffer_flags (vlib_buffer_t * b0, virtio_net_hdr_v1_t * hdr,
+fill_gso_buffer_flags (vlib_buffer_t *b0, vnet_virtio_net_hdr_v1_t *hdr,
u8 l4_proto, u8 l4_hdr_sz)
{
if (hdr->gso_type == VIRTIO_NET_HDR_GSO_TCPV4)
}
static_always_inline u16
-virtio_n_left_to_process (virtio_vring_t * vring, const int packed)
+virtio_n_left_to_process (vnet_virtio_vring_t *vring, const int packed)
{
if (packed)
return vring->desc_in_use;
}
static_always_inline u16
-virtio_get_slot_id (virtio_vring_t * vring, const int packed, u16 last,
+virtio_get_slot_id (vnet_virtio_vring_t *vring, const int packed, u16 last,
u16 mask)
{
if (packed)
}
static_always_inline u16
-virtio_get_len (virtio_vring_t * vring, const int packed, const int hdr_sz,
+virtio_get_len (vnet_virtio_vring_t *vring, const int packed, const int hdr_sz,
u16 last, u16 mask)
{
if (packed)
return vring->used->ring[last & mask].len - hdr_sz;
}
-#define increment_last(last, packed, vring) \
- do { \
- last++; \
- if (packed && last >= vring->size) \
- { \
- last = 0; \
- vring->used_wrap_counter ^= 1; \
- } \
- } while (0)
+#define increment_last(last, packed, vring) \
+ do \
+ { \
+ last++; \
+ if (packed && last >= vring->queue_size) \
+ { \
+ last = 0; \
+ vring->used_wrap_counter ^= 1; \
+ } \
+ } \
+ while (0)
static_always_inline uword
-virtio_device_input_gso_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * frame, virtio_if_t * vif,
- virtio_vring_t * vring, virtio_if_type_t type,
- int gso_enabled, int checksum_offload_enabled,
- int packed)
+virtio_device_input_gso_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
+ vlib_frame_t *frame, virtio_if_t *vif,
+ vnet_virtio_vring_t *vring,
+ virtio_if_type_t type, int gso_enabled,
+ int checksum_offload_enabled, int packed)
{
vnet_main_t *vnm = vnet_get_main ();
u32 thread_index = vm->thread_index;
u32 *to_next = 0;
u32 n_rx_packets = 0;
u32 n_rx_bytes = 0;
- u16 mask = vring->size - 1;
+ u16 mask = vring->queue_size - 1;
u16 last = vring->last_used_idx;
u16 n_left = virtio_n_left_to_process (vring, packed);
- vlib_buffer_t bt;
+ vlib_buffer_t bt = {};
if (n_left == 0)
return 0;
{
if (packed)
{
- vring_packed_desc_t *d = &vring->packed_desc[last];
+ vnet_virtio_vring_packed_desc_t *d = &vring->packed_desc[last];
u16 flags = d->flags;
if ((flags & VRING_DESC_F_AVAIL) !=
(vring->used_wrap_counter << 7)
}
u8 l4_proto = 0, l4_hdr_sz = 0;
u16 num_buffers = 1;
- virtio_net_hdr_v1_t *hdr;
+ vnet_virtio_net_hdr_v1_t *hdr;
u16 slot = virtio_get_slot_id (vring, packed, last, mask);
u16 len = virtio_get_len (vring, packed, hdr_sz, last, mask);
u32 bi0 = vring->buffers[slot];
vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0);
hdr = vlib_buffer_get_current (b0);
- if (hdr_sz == sizeof (virtio_net_hdr_v1_t))
+ if (hdr_sz == sizeof (vnet_virtio_net_hdr_v1_t))
num_buffers = hdr->num_buffers;
b0->flags = VLIB_BUFFER_TOTAL_LENGTH_VALID;
}
/* trace */
- VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b0);
-
if (PREDICT_FALSE (n_trace > 0 && vlib_trace_buffer (vm, node, next0, b0, /* follow_chain */
1)))
{
tr->next_index = next0;
tr->hw_if_index = vif->hw_if_index;
tr->len = len;
- clib_memcpy_fast (&tr->hdr, hdr, hdr_sz);
+ clib_memcpy_fast (&tr->hdr, hdr, (hdr_sz == 12) ? 12 : 10);
}
/* enqueue buffer */
vlib_frame_t * frame, virtio_if_t * vif, u16 qid,
virtio_if_type_t type)
{
- virtio_vring_t *vring = vec_elt_at_index (vif->rxq_vrings, qid);
+ vnet_virtio_vring_t *vring = vec_elt_at_index (vif->rxq_vrings, qid);
const int hdr_sz = vif->virtio_net_hdr_sz;
- u16 txq_id = vm->thread_index % vif->num_txqs;
- virtio_vring_t *txq_vring = vec_elt_at_index (vif->txq_vrings, txq_id);
uword rv;
- if (clib_spinlock_trylock_if_init (&txq_vring->lockp))
- {
- if (vif->packet_coalesce)
- vnet_gro_flow_table_schedule_node_on_dispatcher
- (vm, txq_vring->flow_table);
- else if (vif->packet_buffering)
- virtio_vring_buffering_schedule_node_on_dispatcher
- (vm, txq_vring->buffering);
- clib_spinlock_unlock_if_init (&txq_vring->lockp);
- }
-
if (vif->is_packed)
{
if (vif->gso_enabled)
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