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authorMohsin Kazmi <sykazmi@cisco.com>2020-08-13 18:57:26 +0200
committerBenoƮt Ganne <bganne@cisco.com>2020-08-17 08:46:53 +0000
commit9e2a78564f0fc07f1ea3d15a31fa7ca3a0f6424d (patch)
tree03387739672584357b7038b67e998d8824de5d01 /src/vnet/devices/virtio/device.c
parent00dd39044e64b4a7a33d204ef7d19aac819d71f5 (diff)
tap: add gro support
Type: feature Change-Id: I5868dd267aa26aa97aec5fd70e70c5956ac52277 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Diffstat (limited to 'src/vnet/devices/virtio/device.c')
-rw-r--r--src/vnet/devices/virtio/device.c33
1 files changed, 26 insertions, 7 deletions
diff --git a/src/vnet/devices/virtio/device.c b/src/vnet/devices/virtio/device.c
index 45c390d415d..99157cd6166 100644
--- a/src/vnet/devices/virtio/device.c
+++ b/src/vnet/devices/virtio/device.c
@@ -23,6 +23,7 @@
#include <vlib/unix/unix.h>
#include <vnet/vnet.h>
#include <vnet/ethernet/ethernet.h>
+#include <vnet/gso/gro_func.h>
#include <vnet/gso/hdr_offset_parser.h>
#include <vnet/ip/ip4_packet.h>
#include <vnet/ip/ip6_packet.h>
@@ -502,7 +503,7 @@ 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, int do_gso,
- int csum_offload)
+ int csum_offload, int do_gro)
{
u16 n_left = frame->n_vectors;
virtio_vring_t *vring;
@@ -513,6 +514,7 @@ virtio_interface_tx_gso_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
u16 mask = sz - 1;
u16 retry_count = 2;
u32 *buffers = vlib_frame_vector_args (frame);
+ u32 to[GRO_TO_VECTOR_SIZE (n_left)];
clib_spinlock_lock_if_init (&vring->lockp);
@@ -520,6 +522,12 @@ virtio_interface_tx_gso_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
(vring->last_kick_avail_idx != vring->avail->idx))
virtio_kick (vm, vring, vif);
+ if (do_gro)
+ {
+ n_left = vnet_gro_inline (vm, vring->flow_table, buffers, n_left, to);
+ buffers = to;
+ }
+
retry:
/* free consumed buffers */
virtio_free_used_device_desc (vm, vring, node->node_index);
@@ -621,7 +629,8 @@ retry:
if (retry_count--)
goto retry;
- virtio_interface_drop_inline (vm, node->node_index, buffers, n_left,
+ virtio_interface_drop_inline (vm, node->node_index,
+ buffers, n_left,
VIRTIO_TX_ERROR_NO_FREE_SLOTS);
}
@@ -641,15 +650,18 @@ virtio_interface_tx_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
if (hw->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO)
return virtio_interface_tx_gso_inline (vm, node, frame, vif, type,
1 /* do_gso */ ,
- 1 /* checksum offload */ );
+ 1 /* checksum offload */ ,
+ vif->packet_coalesce);
else if (hw->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD)
return virtio_interface_tx_gso_inline (vm, node, frame, vif, type,
0 /* no do_gso */ ,
- 1 /* checksum offload */ );
+ 1 /* checksum offload */ ,
+ 0 /* do_gro */ );
else
return virtio_interface_tx_gso_inline (vm, node, frame, vif, type,
0 /* no do_gso */ ,
- 0 /* no checksum offload */ );
+ 0 /* no checksum offload */ ,
+ 0 /* do_gro */ );
}
VNET_DEVICE_CLASS_TX_FN (virtio_device_class) (vlib_main_t * vm,
@@ -717,9 +729,16 @@ virtio_interface_rx_mode_change (vnet_main_t * vnm, u32 hw_if_index, u32 qid,
}
if (mode == VNET_HW_INTERFACE_RX_MODE_POLLING)
- vring->avail->flags |= VIRTIO_RING_FLAG_MASK_INT;
+ {
+ /* only enable packet coalesce in poll mode */
+ gro_flow_table_set_is_enable (vring->flow_table, 1);
+ vring->avail->flags |= VIRTIO_RING_FLAG_MASK_INT;
+ }
else
- vring->avail->flags &= ~VIRTIO_RING_FLAG_MASK_INT;
+ {
+ gro_flow_table_set_is_enable (vring->flow_table, 0);
+ vring->avail->flags &= ~VIRTIO_RING_FLAG_MASK_INT;
+ }
return 0;
}