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Diffstat (limited to 'src/vnet/devices/virtio/node.c')
-rw-r--r--src/vnet/devices/virtio/node.c61
1 files changed, 31 insertions, 30 deletions
diff --git a/src/vnet/devices/virtio/node.c b/src/vnet/devices/virtio/node.c
index 42b2590b342..960af992cfb 100644
--- a/src/vnet/devices/virtio/node.c
+++ b/src/vnet/devices/virtio/node.c
@@ -261,15 +261,12 @@ fill_gso_buffer_flags (vlib_buffer_t * b0, virtio_net_hdr_v1_t * hdr,
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,
- u16 qid, virtio_if_type_t type,
+ virtio_vring_t * vring, virtio_if_type_t type,
int gso_enabled, int checksum_offload_enabled)
{
vnet_main_t *vnm = vnet_get_main ();
u32 thread_index = vm->thread_index;
uword n_trace = vlib_get_trace_count (vm, node);
- virtio_vring_t *vring = vec_elt_at_index (vif->rxq_vrings, qid);
- u16 txq_id = thread_index % vif->num_txqs;
- virtio_vring_t *txq_vring = vec_elt_at_index (vif->txq_vrings, txq_id);
u32 next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
const int hdr_sz = vif->virtio_net_hdr_sz;
u32 *to_next = 0;
@@ -279,23 +276,8 @@ virtio_device_input_gso_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
u16 last = vring->last_used_idx;
u16 n_left = vring->used->idx - last;
- 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 ((vring->used->flags & VRING_USED_F_NO_NOTIFY) == 0 &&
- vring->last_kick_avail_idx != vring->avail->idx)
- virtio_kick (vm, vring, vif);
-
if (n_left == 0)
- goto refill;
+ return 0;
if (type == VIRTIO_IF_TYPE_TUN)
next_index = VNET_DEVICE_INPUT_NEXT_IP4_INPUT;
@@ -432,9 +414,6 @@ virtio_device_input_gso_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
vif->sw_if_index, n_rx_packets,
n_rx_bytes);
-refill:
- virtio_refill_vring (vm, vif, type, vring, hdr_sz, node->node_index);
-
return n_rx_packets;
}
@@ -443,17 +422,39 @@ virtio_device_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
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);
+ 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 ((vring->used->flags & VRING_USED_F_NO_NOTIFY) == 0 &&
+ vring->last_kick_avail_idx != vring->avail->idx)
+ virtio_kick (vm, vring, vif);
if (vif->gso_enabled)
- return virtio_device_input_gso_inline (vm, node, frame, vif,
- qid, type, 1, 1);
+ rv = virtio_device_input_gso_inline (vm, node, frame, vif, vring, type,
+ 1, 1);
else if (vif->csum_offload_enabled)
- return virtio_device_input_gso_inline (vm, node, frame, vif,
- qid, type, 0, 1);
+ rv = virtio_device_input_gso_inline (vm, node, frame, vif, vring, type,
+ 0, 1);
else
- return virtio_device_input_gso_inline (vm, node, frame, vif,
- qid, type, 0, 0);
- return 0;
+ rv = virtio_device_input_gso_inline (vm, node, frame, vif, vring, type,
+ 0, 0);
+
+ virtio_refill_vring (vm, vif, type, vring, hdr_sz, node->node_index);
+ return rv;
}
VLIB_NODE_FN (virtio_input_node) (vlib_main_t * vm,