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-rw-r--r--src/include/gpxe/ib_mad.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/include/gpxe/ib_mad.h b/src/include/gpxe/ib_mad.h
index a628cea5..cfd8ef9a 100644
--- a/src/include/gpxe/ib_mad.h
+++ b/src/include/gpxe/ib_mad.h
@@ -491,7 +491,9 @@ struct ib_mad_hdr {
#define IB_MGMT_CLASS_CM 0x07
#define IB_MGMT_CLASS_SNMP 0x08
#define IB_MGMT_CLASS_VENDOR_RANGE2_START 0x30
-#define IB_MGMT_CLASS_VENDOR_RANGE2_END 0x4F
+#define IB_MGMT_CLASS_VENDOR_RANGE2_END 0x4f
+
+#define IB_MGMT_CLASS_MASK 0x7f
/* Management methods */
#define IB_MGMT_METHOD_GET 0x01