Drivers: hv: vmbus: Add support for the NetworkDirect GUID

NetworkDirect is a service that supports guest RDMA.
Define the GUID for this service.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2 files changed, 12 insertions, 0 deletions

diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 6be93f09f976..0ba6b5c303e6 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -413,6 +413,8 @@ static const struct hv_vmbus_device_id hp_devs[] = {
         { HV_SCSI_GUID, },
         /* Network */
         { HV_NIC_GUID, },
+        /* NetworkDirect Guest RDMA */
+        { HV_ND_GUID, },
 };
 
 
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 26a32b771ee5..7d976ac01fac 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -1110,6 +1110,16 @@ void vmbus_driver_unregister(struct hv_driver *hv_driver);
                 }
 
 /*
+ * NetworkDirect. This is the guest RDMA service.
+ * {8c2eaf3d-32a7-4b09-ab99-bd1f1c86b501}
+ */
+#define HV_ND_GUID \
+        .guid = { \
+                        0x3d, 0xaf, 0x2e, 0x8c, 0xa7, 0x32, 0x09, 0x4b, \
+                        0xab, 0x99, 0xbd, 0x1f, 0x1c, 0x86, 0xb5, 0x01 \
+                }
+
+/*
  * Common header for Hyper-V ICs
  */