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authorMohsin Kazmi <sykazmi@cisco.com>2020-10-23 11:23:52 +0200
committerDamjan Marion <dmarion@me.com>2020-10-26 15:28:47 +0000
commitee1e30f7b011dd2ab730a8c80840c9f55920c688 (patch)
tree49402ee7315244d9e1c13027b19cc774f1671159 /src/vnet/devices/virtio
parent0a9ab822ca16e54229aa2a48b98f3d1c213657a6 (diff)
virtio: reduce the compile time for device.c
Type: improvement GRO is common to tap/tun/virtio devices. Hence move to common place. Change-Id: Ibb099f3a80f493ddb934df6bb7640f7c9c370fd5 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Diffstat (limited to 'src/vnet/devices/virtio')
-rw-r--r--src/vnet/devices/virtio/device.c34
1 files changed, 19 insertions, 15 deletions
diff --git a/src/vnet/devices/virtio/device.c b/src/vnet/devices/virtio/device.c
index 521d76a8da4..bc89ca94200 100644
--- a/src/vnet/devices/virtio/device.c
+++ b/src/vnet/devices/virtio/device.c
@@ -545,21 +545,13 @@ static_always_inline uword
virtio_interface_tx_gso_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_frame_t * frame, virtio_if_t * vif,
virtio_if_type_t type, virtio_vring_t * vring,
- int do_gso, int csum_offload)
+ u32 * buffers, u16 n_left, int do_gso,
+ int csum_offload)
{
- u16 n_left = frame->n_vectors;
u16 used, next, avail, n_buffers = 0, n_buffers_left = 0;
u16 sz = vring->size;
u16 mask = sz - 1;
u16 retry_count = 2;
- u32 *buffers = vlib_frame_vector_args (frame);
- u32 to[GRO_TO_VECTOR_SIZE (n_left)];
-
- if (do_gso && vif->packet_coalesce)
- {
- n_left = vnet_gro_inline (vm, vring->flow_table, buffers, n_left, to);
- buffers = to;
- }
retry:
/* free consumed buffers */
@@ -678,21 +670,24 @@ retry:
static_always_inline uword
virtio_interface_tx_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)
+ virtio_vring_t * vring, virtio_if_type_t type,
+ u32 * buffers, u16 n_left)
{
vnet_main_t *vnm = vnet_get_main ();
vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, vif->hw_if_index);
if (hw->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO)
return virtio_interface_tx_gso_inline (vm, node, frame, vif, type, vring,
- 1 /* do_gso */ ,
+ buffers, n_left, 1 /* do_gso */ ,
1 /* checksum offload */ );
else if (hw->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD)
return virtio_interface_tx_gso_inline (vm, node, frame, vif, type, vring,
+ buffers, n_left,
0 /* no do_gso */ ,
1 /* checksum offload */ );
else
return virtio_interface_tx_gso_inline (vm, node, frame, vif, type, vring,
+ buffers, n_left,
0 /* no do_gso */ ,
0 /* no checksum offload */ );
}
@@ -706,6 +701,9 @@ VNET_DEVICE_CLASS_TX_FN (virtio_device_class) (vlib_main_t * vm,
virtio_if_t *vif = pool_elt_at_index (nm->interfaces, rund->dev_instance);
u16 qid = vm->thread_index % vif->num_txqs;
virtio_vring_t *vring = vec_elt_at_index (vif->txq_vrings, qid);
+ u16 n_left = frame->n_vectors;
+ u32 *buffers = vlib_frame_vector_args (frame);
+ u32 to[GRO_TO_VECTOR_SIZE (n_left)];
uword rv = 0;
clib_spinlock_lock_if_init (&vring->lockp);
@@ -714,15 +712,21 @@ VNET_DEVICE_CLASS_TX_FN (virtio_device_class) (vlib_main_t * vm,
(vring->last_kick_avail_idx != vring->avail->idx))
virtio_kick (vm, vring, vif);
+ if (vif->packet_coalesce)
+ {
+ n_left = vnet_gro_inline (vm, vring->flow_table, buffers, n_left, to);
+ buffers = to;
+ }
+
if (vif->type == VIRTIO_IF_TYPE_TAP)
rv = virtio_interface_tx_inline (vm, node, frame, vif, vring,
- VIRTIO_IF_TYPE_TAP);
+ VIRTIO_IF_TYPE_TAP, buffers, n_left);
else if (vif->type == VIRTIO_IF_TYPE_PCI)
rv = virtio_interface_tx_inline (vm, node, frame, vif, vring,
- VIRTIO_IF_TYPE_PCI);
+ VIRTIO_IF_TYPE_PCI, buffers, n_left);
else if (vif->type == VIRTIO_IF_TYPE_TUN)
rv = virtio_interface_tx_inline (vm, node, frame, vif, vring,
- VIRTIO_IF_TYPE_TUN);
+ VIRTIO_IF_TYPE_TUN, buffers, n_left);
else
ASSERT (0);