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-rw-r--r--include/rdma/opa_addr.h42
1 files changed, 40 insertions, 2 deletions
diff --git a/include/rdma/opa_addr.h b/include/rdma/opa_addr.h
index eace28f1555d..e6e90f18e6d5 100644
--- a/include/rdma/opa_addr.h
+++ b/include/rdma/opa_addr.h
@@ -48,8 +48,21 @@
#ifndef OPA_ADDR_H
#define OPA_ADDR_H
+#include <rdma/opa_smi.h>
+
#define OPA_SPECIAL_OUI (0x00066AULL)
#define OPA_MAKE_ID(x) (cpu_to_be64(OPA_SPECIAL_OUI << 40 | (x)))
+#define OPA_TO_IB_UCAST_LID(x) (((x) >= be16_to_cpu(IB_MULTICAST_LID_BASE)) \
+ ? 0 : x)
+#define OPA_GID_INDEX 0x1
+/**
+ * 0xF8 - 4 bits of multicast range and 1 bit for collective range
+ * Example: For 24 bit LID space,
+ * Multicast range: 0xF00000 to 0xF7FFFF
+ * Collective range: 0xF80000 to 0xFFFFFE
+ */
+#define OPA_MCAST_NR 0x4 /* Number of top bits set */
+#define OPA_COLLECTIVE_NR 0x1 /* Number of bits after MCAST_NR */
/**
* ib_is_opa_gid: Returns true if the top 24 bits of the gid
@@ -59,7 +72,7 @@
*
* @gid: The Global identifier
*/
-static inline bool ib_is_opa_gid(union ib_gid *gid)
+static inline bool ib_is_opa_gid(const union ib_gid *gid)
{
return ((be64_to_cpu(gid->global.interface_id) >> 40) ==
OPA_SPECIAL_OUI);
@@ -72,8 +85,33 @@ static inline bool ib_is_opa_gid(union ib_gid *gid)
*
* @gid: The Global identifier
*/
-static inline u32 opa_get_lid_from_gid(union ib_gid *gid)
+static inline u32 opa_get_lid_from_gid(const union ib_gid *gid)
{
return be64_to_cpu(gid->global.interface_id) & 0xFFFFFFFF;
}
+
+/**
+ * opa_is_extended_lid: Returns true if dlid or slid are
+ * extended.
+ *
+ * @dlid: The DLID
+ * @slid: The SLID
+ */
+static inline bool opa_is_extended_lid(u32 dlid, u32 slid)
+{
+ if ((be32_to_cpu(dlid) >=
+ be16_to_cpu(IB_MULTICAST_LID_BASE)) ||
+ (be32_to_cpu(slid) >=
+ be16_to_cpu(IB_MULTICAST_LID_BASE)))
+ return true;
+ else
+ return false;
+}
+
+/* Get multicast lid base */
+static inline u32 opa_get_mcast_base(u32 nr_top_bits)
+{
+ return (be32_to_cpu(OPA_LID_PERMISSIVE) << (32 - nr_top_bits));
+}
+
#endif /* OPA_ADDR_H */