diff options
Diffstat (limited to 'src/vnet/devices/virtio/device.c')
| -rw-r--r-- | src/vnet/devices/virtio/device.c | 59 |
1 files changed, 28 insertions, 31 deletions
diff --git a/src/vnet/devices/virtio/device.c b/src/vnet/devices/virtio/device.c index 5c4412fdb0b..084be962ed7 100644 --- a/src/vnet/devices/virtio/device.c +++ b/src/vnet/devices/virtio/device.c @@ -544,13 +544,10 @@ virtio_find_free_desc (virtio_vring_t * vring, u16 size, u16 mask, 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 do_gro) + virtio_if_type_t type, virtio_vring_t * vring, + int do_gso, int csum_offload) { u16 n_left = frame->n_vectors; - virtio_vring_t *vring; - u16 qid = vm->thread_index % vif->num_txqs; - vring = vec_elt_at_index (vif->txq_vrings, qid); u16 used, next, avail, n_buffers = 0, n_buffers_left = 0; u16 sz = vring->size; u16 mask = sz - 1; @@ -558,13 +555,7 @@ virtio_interface_tx_gso_inline (vlib_main_t * vm, vlib_node_runtime_t * node, u32 *buffers = vlib_frame_vector_args (frame); u32 to[GRO_TO_VECTOR_SIZE (n_left)]; - clib_spinlock_lock_if_init (&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 (do_gro) + if (do_gso && vif->packet_coalesce) { n_left = vnet_gro_inline (vm, vring->flow_table, buffers, n_left, to); buffers = to; @@ -681,34 +672,29 @@ retry: VIRTIO_TX_ERROR_NO_FREE_SLOTS); } - clib_spinlock_unlock_if_init (&vring->lockp); - return frame->n_vectors - n_left; } 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_if_type_t type) + virtio_vring_t * vring, virtio_if_type_t type) { 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, + return virtio_interface_tx_gso_inline (vm, node, frame, vif, type, vring, 1 /* do_gso */ , - 1 /* checksum offload */ , - vif->packet_coalesce); + 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, + return virtio_interface_tx_gso_inline (vm, node, frame, vif, type, vring, 0 /* no do_gso */ , - 1 /* checksum offload */ , - 0 /* do_gro */ ); + 1 /* checksum offload */ ); else - return virtio_interface_tx_gso_inline (vm, node, frame, vif, type, + return virtio_interface_tx_gso_inline (vm, node, frame, vif, type, vring, 0 /* no do_gso */ , - 0 /* no checksum offload */ , - 0 /* do_gro */ ); + 0 /* no checksum offload */ ); } VNET_DEVICE_CLASS_TX_FN (virtio_device_class) (vlib_main_t * vm, @@ -718,20 +704,31 @@ VNET_DEVICE_CLASS_TX_FN (virtio_device_class) (vlib_main_t * vm, virtio_main_t *nm = &virtio_main; vnet_interface_output_runtime_t *rund = (void *) node->runtime_data; 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); + uword rv = 0; + + clib_spinlock_lock_if_init (&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->type == VIRTIO_IF_TYPE_TAP) - return virtio_interface_tx_inline (vm, node, frame, vif, - VIRTIO_IF_TYPE_TAP); + rv = virtio_interface_tx_inline (vm, node, frame, vif, vring, + VIRTIO_IF_TYPE_TAP); else if (vif->type == VIRTIO_IF_TYPE_PCI) - return virtio_interface_tx_inline (vm, node, frame, vif, - VIRTIO_IF_TYPE_PCI); + rv = virtio_interface_tx_inline (vm, node, frame, vif, vring, + VIRTIO_IF_TYPE_PCI); else if (vif->type == VIRTIO_IF_TYPE_TUN) - return virtio_interface_tx_inline (vm, node, frame, vif, - VIRTIO_IF_TYPE_TUN); + rv = virtio_interface_tx_inline (vm, node, frame, vif, vring, + VIRTIO_IF_TYPE_TUN); else ASSERT (0); - return 0; + clib_spinlock_unlock_if_init (&vring->lockp); + + return rv; } static void |