}
static u64
-virtio_pci_legacy_get_features (vlib_main_t * vm, virtio_if_t * vif)
+virtio_pci_legacy_get_host_features (vlib_main_t * vm, virtio_if_t * vif)
{
u32 features;
vlib_pci_read_io_u32 (vm, vif->pci_dev_handle, VIRTIO_PCI_HOST_FEATURES,
}
static u32
-virtio_pci_legacy_set_features (vlib_main_t * vm, virtio_if_t * vif,
- u64 features)
+virtio_pci_legacy_get_guest_features (vlib_main_t * vm, virtio_if_t * vif)
+{
+ u32 feature = 0;
+ vlib_pci_read_io_u32 (vm, vif->pci_dev_handle, VIRTIO_PCI_GUEST_FEATURES,
+ &feature);
+ vif->features = feature;
+ return feature;
+}
+
+static u32
+virtio_pci_legacy_set_guest_features (vlib_main_t * vm, virtio_if_t * vif,
+ u64 features)
{
if ((features >> 32) != 0)
{
return status;
}
+static int
+virtio_pci_disable_offload (vlib_main_t * vm, virtio_if_t * vif)
+{
+ struct virtio_ctrl_msg offload_hdr;
+ virtio_net_ctrl_ack status = VIRTIO_NET_ERR;
+
+ offload_hdr.ctrl.class = VIRTIO_NET_CTRL_GUEST_OFFLOADS;
+ offload_hdr.ctrl.cmd = VIRTIO_NET_CTRL_GUEST_OFFLOADS_SET;
+ offload_hdr.status = VIRTIO_NET_ERR;
+ u64 offloads = 0ULL;
+ clib_memcpy (offload_hdr.data, &offloads, sizeof (offloads));
+
+ status =
+ virtio_pci_send_ctrl_msg (vm, vif, &offload_hdr, sizeof (offloads));
+ virtio_log_debug (vif, "disable offloads");
+ vif->remote_features = virtio_pci_legacy_get_host_features (vm, vif);
+ virtio_pci_legacy_get_guest_features (vm, vif);
+ return status;
+}
+
+static int
+virtio_pci_enable_checksum_offload (vlib_main_t * vm, virtio_if_t * vif)
+{
+ struct virtio_ctrl_msg csum_offload_hdr;
+ virtio_net_ctrl_ack status = VIRTIO_NET_ERR;
+
+ csum_offload_hdr.ctrl.class = VIRTIO_NET_CTRL_GUEST_OFFLOADS;
+ csum_offload_hdr.ctrl.cmd = VIRTIO_NET_CTRL_GUEST_OFFLOADS_SET;
+ csum_offload_hdr.status = VIRTIO_NET_ERR;
+ u64 offloads = 0ULL;
+ offloads |= VIRTIO_FEATURE (VIRTIO_NET_F_GUEST_CSUM);
+ clib_memcpy (csum_offload_hdr.data, &offloads, sizeof (offloads));
+
+ status =
+ virtio_pci_send_ctrl_msg (vm, vif, &csum_offload_hdr, sizeof (offloads));
+ virtio_log_debug (vif, "enable checksum offload");
+ vif->remote_features = virtio_pci_legacy_get_host_features (vm, vif);
+ virtio_pci_legacy_get_guest_features (vm, vif);
+ return status;
+}
+
static int
virtio_pci_enable_gso (vlib_main_t * vm, virtio_if_t * vif)
{
gso_hdr.status = VIRTIO_NET_ERR;
u64 offloads = VIRTIO_FEATURE (VIRTIO_NET_F_GUEST_CSUM)
| VIRTIO_FEATURE (VIRTIO_NET_F_GUEST_TSO4)
- | VIRTIO_FEATURE (VIRTIO_NET_F_GUEST_TSO6)
- | VIRTIO_FEATURE (VIRTIO_NET_F_GUEST_UFO);
+ | VIRTIO_FEATURE (VIRTIO_NET_F_GUEST_TSO6);
clib_memcpy (gso_hdr.data, &offloads, sizeof (offloads));
status = virtio_pci_send_ctrl_msg (vm, vif, &gso_hdr, sizeof (offloads));
virtio_log_debug (vif, "enable gso");
+ vif->remote_features = virtio_pci_legacy_get_host_features (vm, vif);
+ virtio_pci_legacy_get_guest_features (vm, vif);
return status;
}
+static int
+virtio_pci_offloads (vlib_main_t * vm, virtio_if_t * vif, int gso_enabled,
+ int csum_offload_enabled)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, vif->hw_if_index);
+
+ if ((vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_CTRL_VQ)) &&
+ (vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_CTRL_GUEST_OFFLOADS)))
+ {
+ if (gso_enabled
+ && (vif->features & (VIRTIO_FEATURE (VIRTIO_NET_F_HOST_TSO4) |
+ VIRTIO_FEATURE (VIRTIO_NET_F_HOST_TSO6))))
+ {
+ if (virtio_pci_enable_gso (vm, vif))
+ {
+ virtio_log_warning (vif, "gso is not enabled");
+ }
+ else
+ {
+ vif->gso_enabled = 1;
+ vif->csum_offload_enabled = 0;
+ hw->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO |
+ VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
+ }
+ }
+ else if (csum_offload_enabled
+ && (vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_CSUM)))
+ {
+ if (virtio_pci_enable_checksum_offload (vm, vif))
+ {
+ virtio_log_warning (vif, "checksum offload is not enabled");
+ }
+ else
+ {
+ vif->csum_offload_enabled = 1;
+ vif->gso_enabled = 0;
+ hw->flags &= ~VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO;
+ hw->flags |=
+ VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
+ }
+ }
+ else
+ {
+ if (virtio_pci_disable_offload (vm, vif))
+ {
+ virtio_log_warning (vif, "offloads are not disabled");
+ }
+ else
+ {
+ vif->csum_offload_enabled = 0;
+ vif->gso_enabled = 0;
+ hw->flags &= ~(VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO |
+ VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD);
+ }
+ }
+ }
+
+ return 0;
+}
+
static int
virtio_pci_enable_multiqueue (vlib_main_t * vm, virtio_if_t * vif,
u16 num_queues)
vif->features &= ~VIRTIO_FEATURE (VIRTIO_NET_F_MTU);
}
- vif->features = virtio_pci_legacy_set_features (vm, vif, vif->features);
+ vif->features =
+ virtio_pci_legacy_set_guest_features (vm, vif, vif->features);
}
void
virtio_pci_read_device_feature (vlib_main_t * vm, virtio_if_t * vif)
{
- vif->remote_features = virtio_pci_legacy_get_features (vm, vif);
+ vif->remote_features = virtio_pci_legacy_get_host_features (vm, vif);
}
int
else
vnet_hw_interface_set_flags (vnm, vif->hw_if_index, 0);
- if (vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_CTRL_VQ))
+ virtio_pci_offloads (vm, vif, args->gso_enabled,
+ args->checksum_offload_enabled);
+
+ if ((vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_CTRL_VQ)) &&
+ (vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_MQ)))
{
- if (vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_CTRL_GUEST_OFFLOADS) &&
- args->gso_enabled)
- {
- if (virtio_pci_enable_gso (vm, vif))
- {
- virtio_log_warning (vif, "gso is not enabled");
- }
- else
- {
- vif->gso_enabled = 1;
- hw->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO;
- }
- }
- if (vif->features & VIRTIO_FEATURE (VIRTIO_NET_F_MQ))
- {
- if (virtio_pci_enable_multiqueue (vm, vif, vif->max_queue_pairs))
- virtio_log_warning (vif, "multiqueue is not set");
- }
+ if (virtio_pci_enable_multiqueue (vm, vif, vif->max_queue_pairs))
+ virtio_log_warning (vif, "multiqueue is not set");
}
return;
-
error:
virtio_pci_delete_if (vm, vif);
args->rv = VNET_API_ERROR_INVALID_INTERFACE;
return 0;
}
+int
+virtio_pci_enable_disable_offloads (vlib_main_t * vm, virtio_if_t * vif,
+ int gso_enabled,
+ int checksum_offload_enabled,
+ int offloads_disabled)
+{
+ if (vif->type != VIRTIO_IF_TYPE_PCI)
+ return VNET_API_ERROR_INVALID_INTERFACE;
+
+ if (gso_enabled)
+ virtio_pci_offloads (vm, vif, 1, 0);
+ else if (checksum_offload_enabled)
+ virtio_pci_offloads (vm, vif, 0, 1);
+ else if (offloads_disabled)
+ virtio_pci_offloads (vm, vif, 0, 0);
+
+ return 0;
+}
+
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff