dpdk: allow configure individual VMBUS devices

now startup.conf supports confuguration for VMBUS
devices as for PCI devices for whitelisting/blacklisting

dpdk { dev fa5a6e7a-cf3a-4b98-9569-addb479b84bc }
 with sub-configuration as for PCI devices
dpdk { blacklist fa5a6e7a-cf3a-4b98-9569-addb479b84bc }
 where fa5a6e7a-cf3a-4b98-9569-addb479b84bc - example of UUID

struct vlib_vmbus_addr_t changed to union with UUID described
 fields

Added device_config_index_by_vmbus_addr
      blacklist_by_vmbus_addr
to enumerate available device configs

hash_key is as_u32[0] field(last 4 bytes of UUID)
Lost of precision against full UUID, but 2^32 is enough
to handle all the devices available

Added is_blacklisted check while creating vnet devices in
order to supress creation of dev if it's blacklisted

Type: feature

Signed-off-by: Vladimir Ratnikov <vratnikov@netgate.com>
Change-Id: Id82611e54fed082190e488c7e5fbe14ecbe5b2ab

1 files changed, 13 insertions, 0 deletions

diff --git a/src/plugins/dpdk/device/common.c b/src/plugins/dpdk/device/common.c
index 0c43bfe02bb..2521abde97a 100644
--- a/src/plugins/dpdk/device/common.c
+++ b/src/plugins/dpdk/device/common.c
@@ -260,6 +260,19 @@ dpdk_get_pci_device (const struct rte_eth_dev_info *info)
     return NULL;
 }
 
+/* If this device is VMBUS return pointer to info, otherwise NULL */
+struct rte_vmbus_device *
+dpdk_get_vmbus_device (const struct rte_eth_dev_info *info)
+{
+  const struct rte_bus *bus;
+
+  bus = rte_bus_find_by_device (info->device);
+  if (bus && !strcmp (bus->name, "vmbus"))
+    return container_of (info->device, struct rte_vmbus_device, device);
+  else
+    return NULL;
+}
+
 /*
  * fd.io coding-style-patch-verification: ON
  *