clib_error_t *
virtio_vring_init (vlib_main_t * vm, virtio_if_t * vif, u16 idx, u16 sz)
{
- clib_error_t *err = 0;
virtio_vring_t *vring;
- struct vhost_vring_state state = { 0 };
- struct vhost_vring_addr addr = { 0 };
- struct vhost_vring_file file = { 0 };
clib_file_t t = { 0 };
int i;
if (idx % 2)
{
+ vlib_thread_main_t *thm = vlib_get_thread_main ();
vec_validate_aligned (vif->txq_vrings, TX_QUEUE_ACCESS (idx),
CLIB_CACHE_LINE_BYTES);
vring = vec_elt_at_index (vif->txq_vrings, TX_QUEUE_ACCESS (idx));
+ if (thm->n_vlib_mains > vif->num_txqs)
+ clib_spinlock_init (&vring->lockp);
}
else
{
vring->queue_id = idx;
ASSERT (vring->buffers == 0);
vec_validate_aligned (vring->buffers, sz, CLIB_CACHE_LINE_BYTES);
- ASSERT (vring->indirect_buffers == 0);
- vec_validate_aligned (vring->indirect_buffers, sz, CLIB_CACHE_LINE_BYTES);
- if (idx % 2)
+
+ if (idx & 1)
{
- u32 n_alloc = 0;
- do
- {
- if (n_alloc < sz)
- n_alloc =
- vlib_buffer_alloc (vm, vring->indirect_buffers + n_alloc,
- sz - n_alloc);
- }
- while (n_alloc != sz);
+ clib_memset_u32 (vring->buffers, ~0, sz);
}
vring->size = sz;
vring->call_fd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
- vring->kick_fd = eventfd (0, EFD_CLOEXEC);
+ vring->kick_fd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
+ virtio_log_debug (vif, "vring %u size %u call_fd %d kick_fd %d", idx,
+ vring->size, vring->call_fd, vring->kick_fd);
t.read_function = call_read_ready;
t.file_descriptor = vring->call_fd;
vif->dev_instance, idx);
vring->call_file_index = clib_file_add (&file_main, &t);
- state.index = idx;
- state.num = sz;
- _IOCTL (vif->fd, VHOST_SET_VRING_NUM, &state);
-
- addr.index = idx;
- addr.flags = 0;
- addr.desc_user_addr = pointer_to_uword (vring->desc);
- addr.avail_user_addr = pointer_to_uword (vring->avail);
- addr.used_user_addr = pointer_to_uword (vring->used);
- _IOCTL (vif->fd, VHOST_SET_VRING_ADDR, &addr);
-
- file.index = idx;
- file.fd = vring->kick_fd;
- _IOCTL (vif->fd, VHOST_SET_VRING_KICK, &file);
- file.fd = vring->call_fd;
- _IOCTL (vif->fd, VHOST_SET_VRING_CALL, &file);
- file.fd = vif->tap_fd;
- _IOCTL (vif->fd, VHOST_NET_SET_BACKEND, &file);
-
-error:
- return err;
+ return 0;
}
inline void
if (vring->avail)
clib_mem_free (vring->avail);
vec_free (vring->buffers);
- vec_free (vring->indirect_buffers);
return 0;
}
+inline void
+virtio_free_used_desc (vlib_main_t * vm, virtio_vring_t * vring)
+{
+ u16 used = vring->desc_in_use;
+ u16 sz = vring->size;
+ u16 mask = sz - 1;
+ u16 last = vring->last_used_idx;
+ u16 n_left = vring->used->idx - last;
+
+ if (n_left == 0)
+ return;
+
+ while (n_left)
+ {
+ struct vring_used_elem *e = &vring->used->ring[last & mask];
+ u16 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;
+}
+
clib_error_t *
virtio_vring_free_tx (vlib_main_t * vm, virtio_if_t * vif, u32 idx)
{
clib_mem_free (vring->desc);
if (vring->avail)
clib_mem_free (vring->avail);
- vlib_buffer_free_no_next (vm, vring->indirect_buffers, vring->size);
vec_free (vring->buffers);
- vec_free (vring->indirect_buffers);
+ clib_spinlock_free (&vring->lockp);
return 0;
}
vlib_cli_output (vm, " PCI Address: %U", format_vlib_pci_addr,
&vif->pci_addr);
}
- if (type == VIRTIO_IF_TYPE_TAP)
+ if (type & (VIRTIO_IF_TYPE_TAP | VIRTIO_IF_TYPE_TUN))
{
+ u8 *str = 0;
if (vif->host_if_name)
vlib_cli_output (vm, " name \"%s\"", vif->host_if_name);
if (vif->net_ns)
vlib_cli_output (vm, " host-ns \"%s\"", vif->net_ns);
- vlib_cli_output (vm, " fd %d", vif->fd);
+ if (vif->host_mtu_size)
+ vlib_cli_output (vm, " host-mtu-size \"%d\"",
+ vif->host_mtu_size);
+ if (type == VIRTIO_IF_TYPE_TAP)
+ vlib_cli_output (vm, " host-mac-addr: %U",
+ format_ethernet_address, vif->host_mac_addr);
+
+ vec_foreach_index (i, vif->vhost_fds)
+ str = format (str, " %d", vif->vhost_fds[i]);
+ vlib_cli_output (vm, " vhost-fds%v", str);
+ vec_free (str);
vlib_cli_output (vm, " tap-fd %d", vif->tap_fd);
- vlib_cli_output (vm, " gso-enabled %d", vif->gso_enabled);
}
- vlib_cli_output (vm, " Mac Address: %U", format_ethernet_address,
- vif->mac_addr);
+ vlib_cli_output (vm, " gso-enabled %d", vif->gso_enabled);
+ vlib_cli_output (vm, " csum-enabled %d", vif->csum_offload_enabled);
+ if (type & (VIRTIO_IF_TYPE_TAP | VIRTIO_IF_TYPE_PCI))
+ vlib_cli_output (vm, " Mac Address: %U", format_ethernet_address,
+ vif->mac_addr);
vlib_cli_output (vm, " Device instance: %u", vif->dev_instance);
vlib_cli_output (vm, " flags 0x%x", vif->flags);
flag_entry = (struct feat_struct *) &flags_array;
" avail.flags 0x%x avail.idx %d used.flags 0x%x used.idx %d",
vring->avail->flags, vring->avail->idx,
vring->used->flags, vring->used->idx);
- if (type == VIRTIO_IF_TYPE_TAP)
+ if (type & (VIRTIO_IF_TYPE_TAP | VIRTIO_IF_TYPE_TUN))
{
vlib_cli_output (vm, " kickfd %d, callfd %d", vring->kick_fd,
vring->call_fd);
" avail.flags 0x%x avail.idx %d used.flags 0x%x used.idx %d",
vring->avail->flags, vring->avail->idx,
vring->used->flags, vring->used->idx);
- if (type == VIRTIO_IF_TYPE_TAP)
+ if (type & (VIRTIO_IF_TYPE_TAP | VIRTIO_IF_TYPE_TUN))
{
vlib_cli_output (vm, " kickfd %d, callfd %d", vring->kick_fd,
vring->call_fd);
" avail.flags 0x%x avail.idx %d used.flags 0x%x used.idx %d",
vring->avail->flags, vring->avail->idx,
vring->used->flags, vring->used->idx);
- if (type == VIRTIO_IF_TYPE_TAP)
+ if (type & (VIRTIO_IF_TYPE_TAP | VIRTIO_IF_TYPE_TUN))
{
vlib_cli_output (vm, " kickfd %d, callfd %d", vring->kick_fd,
vring->call_fd);
}
+static clib_error_t *
+virtio_init (vlib_main_t * vm)
+{
+ virtio_main_t *vim = &virtio_main;
+ clib_error_t *error = 0;
+
+ vim->log_default = vlib_log_register_class ("virtio", 0);
+ vlib_log_debug (vim->log_default, "initialized");
+
+ return error;
+}
+
+VLIB_INIT_FUNCTION (virtio_init);
+
/*
* fd.io coding-style-patch-verification: ON
*