#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
-#include <linux/virtio_net.h>
-#include <linux/vhost.h>
#include <vlib/vlib.h>
#include <vlib/unix/unix.h>
#undef _
};
-u8 *
-format_virtio_device_name (u8 * s, va_list * args)
-{
- u32 dev_instance = va_arg (*args, u32);
- virtio_main_t *mm = &virtio_main;
- virtio_if_t *vif = pool_elt_at_index (mm->interfaces, dev_instance);
-
- if (vif->type == VIRTIO_IF_TYPE_TAP)
- s = format (s, "tap%u", vif->id);
- else if (vif->type == VIRTIO_IF_TYPE_PCI)
- s = format (s, "virtio-%x/%x/%x/%x", vif->pci_addr.domain,
- vif->pci_addr.bus, vif->pci_addr.slot,
- vif->pci_addr.function);
- else
- s = format (s, "virtio-%lu", vif->dev_instance);
-
- return s;
-}
-
static u8 *
format_virtio_device (u8 * s, va_list * args)
{
return s;
}
-inline void
-virtio_free_used_desc (vlib_main_t * vm, virtio_vring_t * vring)
+static_always_inline void
+virtio_free_used_device_desc (vlib_main_t * vm, virtio_vring_t * vring)
{
u16 used = vring->desc_in_use;
u16 sz = vring->size;
while (n_left)
{
struct vring_used_elem *e = &vring->used->ring[last & mask];
- u16 slot = e->id;
+ u16 slot, n_buffers;
+ slot = n_buffers = e->id;
- vlib_buffer_free (vm, &vring->buffers[slot], 1);
- used--;
- last++;
- n_left--;
+ while (e->id == n_buffers)
+ {
+ n_left--;
+ last++;
+ n_buffers++;
+ if (n_left == 0)
+ break;
+ e = &vring->used->ring[last & mask];
+ }
+ vlib_buffer_free_from_ring (vm, vring->buffers, slot,
+ sz, (n_buffers - slot));
+ used -= (n_buffers - slot);
+
+ if (n_left > 0)
+ {
+ slot = e->id;
+
+ vlib_buffer_free (vm, &vring->buffers[slot], 1);
+ used--;
+ last++;
+ n_left--;
+ }
}
vring->desc_in_use = used;
vring->last_used_idx = last;
static_always_inline u16
add_buffer_to_slot (vlib_main_t * vm, virtio_if_t * vif,
virtio_vring_t * vring, u32 bi, u16 avail, u16 next,
- u16 mask)
+ u16 mask, int do_gso)
{
u16 n_added = 0;
int hdr_sz = vif->virtio_net_hdr_sz;
struct virtio_net_hdr_v1 *hdr = vlib_buffer_get_current (b) - hdr_sz;
clib_memset (hdr, 0, hdr_sz);
+ if (do_gso && (b->flags & VNET_BUFFER_F_GSO))
+ {
+ if (b->flags & VNET_BUFFER_F_IS_IP4)
+ {
+ hdr->gso_type = VIRTIO_NET_HDR_GSO_TCPV4;
+ hdr->gso_size = vnet_buffer2 (b)->gso_size;
+ hdr->flags = VIRTIO_NET_HDR_F_NEEDS_CSUM;
+ hdr->csum_start = vnet_buffer (b)->l4_hdr_offset; // 0x22;
+ hdr->csum_offset = 0x10;
+ }
+ else
+ {
+ hdr->gso_type = VIRTIO_NET_HDR_GSO_TCPV6;
+ hdr->gso_size = vnet_buffer2 (b)->gso_size;
+ hdr->flags = VIRTIO_NET_HDR_F_NEEDS_CSUM;
+ hdr->csum_start = vnet_buffer (b)->l4_hdr_offset; // 0x36;
+ hdr->csum_offset = 0x10;
+ }
+ }
if (PREDICT_TRUE ((b->flags & VLIB_BUFFER_NEXT_PRESENT) == 0))
{
* It can easily support 65535 bytes of Jumbo frames with
* each data buffer size of 512 bytes minimum.
*/
- vlib_buffer_t *indirect_desc =
- vlib_get_buffer (vm, vring->indirect_buffers[next]);
+ u32 indirect_buffer = 0;
+ if (PREDICT_FALSE (vlib_buffer_alloc (vm, &indirect_buffer, 1) == 0))
+ return n_added;
+
+ vlib_buffer_t *indirect_desc = vlib_get_buffer (vm, indirect_buffer);
indirect_desc->current_data = 0;
+ indirect_desc->flags |= VLIB_BUFFER_NEXT_PRESENT;
+ indirect_desc->next_buffer = bi;
+ bi = indirect_buffer;
struct vring_desc *id =
(struct vring_desc *) vlib_buffer_get_current (indirect_desc);
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)
+ vlib_frame_t * frame, virtio_if_t * vif,
+ int do_gso)
{
- u8 qid = 0;
u16 n_left = frame->n_vectors;
- virtio_vring_t *vring = vec_elt_at_index (vif->vrings, (qid << 1) + 1);
+ 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;
u16 sz = vring->size;
u16 mask = sz - 1;
u32 *buffers = vlib_frame_vector_args (frame);
- clib_spinlock_lock_if_init (&vif->lockp);
+ clib_spinlock_lock_if_init (&vring->lockp);
if ((vring->used->flags & VIRTIO_RING_FLAG_MASK_INT) == 0 &&
(vring->last_kick_avail_idx != vring->avail->idx))
virtio_kick (vm, vring, vif);
/* free consumed buffers */
- virtio_free_used_desc (vm, vring);
+ virtio_free_used_device_desc (vm, vring);
used = vring->desc_in_use;
next = vring->desc_next;
{
u16 n_added = 0;
n_added =
- add_buffer_to_slot (vm, vif, vring, buffers[0], avail, next, mask);
+ add_buffer_to_slot (vm, vif, vring, buffers[0], avail, next, mask,
+ do_gso);
if (!n_added)
break;
avail += n_added;
vlib_buffer_free (vm, buffers, n_left);
}
- clib_spinlock_unlock_if_init (&vif->lockp);
+ clib_spinlock_unlock_if_init (&vring->lockp);
return frame->n_vectors - n_left;
}
-static uword
-virtio_interface_tx (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
+VNET_DEVICE_CLASS_TX_FN (virtio_device_class) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
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);
- return virtio_interface_tx_inline (vm, node, frame, vif);
+ if (vif->gso_enabled > 0)
+ return virtio_interface_tx_inline (vm, node, frame, vif, 1 /* do_gso */ );
+ else
+ return virtio_interface_tx_inline (vm, node, frame, vif,
+ 0 /* no do_gso */ );
}
static void
virtio_main_t *mm = &virtio_main;
vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
virtio_if_t *vif = pool_elt_at_index (mm->interfaces, hw->dev_instance);
- virtio_vring_t *vring = vec_elt_at_index (vif->vrings, qid);
+ virtio_vring_t *vring = vec_elt_at_index (vif->rxq_vrings, qid);
+
+ if (vif->type == VIRTIO_IF_TYPE_PCI && !(vif->support_int_mode))
+ {
+ vring->avail->flags |= VIRTIO_RING_FLAG_MASK_INT;
+ return clib_error_return (0, "interrupt mode is not supported");
+ }
if (mode == VNET_HW_INTERFACE_RX_MODE_POLLING)
vring->avail->flags |= VIRTIO_RING_FLAG_MASK_INT;
/* *INDENT-OFF* */
VNET_DEVICE_CLASS (virtio_device_class) = {
.name = "virtio",
- .tx_function = virtio_interface_tx,
.format_device_name = format_virtio_device_name,
.format_device = format_virtio_device,
.format_tx_trace = format_virtio_tx_trace,
.subif_add_del_function = virtio_subif_add_del_function,
.rx_mode_change_function = virtio_interface_rx_mode_change,
};
-
-VLIB_DEVICE_TX_FUNCTION_MULTIARCH(virtio_device_class,
- virtio_interface_tx)
/* *INDENT-ON* */
/*
Code Review / vpp.git / blobdiff