virtio: refactor virtio-pci logging

[vpp.git] / src / vnet / devices / virtio / format.c

diff --git a/src/vnet/devices/virtio/format.c b/src/vnet/devices/virtio/format.c
new file mode 100644 (file)
index 0000000..729635d
--- /dev/null
+++ b/src/vnet/devices/virtio/format.c
@@ -0,0 +1,66 @@
+/*
+ *------------------------------------------------------------------
+ * Copyright (c) 2018 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *------------------------------------------------------------------
+ */
+#include <vlib/vlib.h>
+#include <vlib/unix/unix.h>
+#include <vlib/pci/pci.h>
+#include <vnet/ethernet/ethernet.h>
+#include <vnet/ip/ip4_packet.h>
+#include <vnet/ip/ip6_packet.h>
+#include <vnet/devices/virtio/virtio.h>
+#include <vnet/devices/virtio/pci.h>
+
+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;
+}
+
+u8 *
+format_virtio_log_name (u8 * s, va_list * args)
+{
+  virtio_if_t *vif = va_arg (*args, virtio_if_t *);
+
+  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, "%U", format_vlib_pci_addr, &vif->pci_addr);
+  else
+    s = format (s, "virtio-%lu", vif->dev_instance);
+
+  return s;
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */