[libvirt] [PATCH 2/3] util: Add virHostdevIsSCSIDevice()

[Marc Hartmayer]

Add the function virHostdevIsSCSIDevice() which detects whether a
hostdev is a SCSI device or not.

Signed-off-by: Marc Hartmayer <mhartmay at linux.vnet.ibm.com>
Reviewed-by: Bjoern Walk <bwalk at linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy at linux.vnet.ibm.com>
---
 src/libvirt_private.syms |  1 +
 src/util/virhostdev.c    | 14 ++++++++++++++
 src/util/virhostdev.h    |  3 +++
 3 files changed, 18 insertions(+)

diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index baff82b..b7d26fd 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -1677,6 +1677,7 @@ virHookPresent;
 
 # util/virhostdev.h
 virHostdevFindUSBDevice;
+virHostdevIsSCSIDevice;
 virHostdevManagerGetDefault;
 virHostdevPCINodeDeviceDetach;
 virHostdevPCINodeDeviceReAttach;
diff --git a/src/util/virhostdev.c b/src/util/virhostdev.c
index 9c2262e..d283306 100644
--- a/src/util/virhostdev.c
+++ b/src/util/virhostdev.c
@@ -337,6 +337,20 @@ virHostdevIsPCINetDevice(virDomainHostdevDefPtr hostdev)
 }
 
 
+/**
+ * virHostdevIsSCSIDevice:
+ * @hostdev: host device to check
+ *
+ * Returns true if @hostdev is a SCSI device, false otherwise.
+ */
+bool
+virHostdevIsSCSIDevice(virDomainHostdevDefPtr hostdev)
+{
+    return hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
+        hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI;
+}
+
+
 static int
 virHostdevNetConfigVirtPortProfile(const char *linkdev, int vf,
                                    virNetDevVPortProfilePtr virtPort,
diff --git a/src/util/virhostdev.h b/src/util/virhostdev.h
index f2f51bd..aa056eb 100644
--- a/src/util/virhostdev.h
+++ b/src/util/virhostdev.h
@@ -149,6 +149,9 @@ virHostdevReAttachDomainDevices(virHostdevManagerPtr mgr,
                                 unsigned int flags,
                                 const char *oldStateDir)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3);
+bool
+virHostdevIsSCSIDevice(virDomainHostdevDefPtr hostdev)
+    ATTRIBUTE_NONNULL(1);
 
 /* functions used by NodeDevDetach/Reattach/Reset */
 int virHostdevPCINodeDeviceDetach(virHostdevManagerPtr mgr,
-- 
2.5.5