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authorDon Hiatt <don.hiatt@intel.com>2017-08-04 13:53:51 -0700
committerDoug Ledford <dledford@redhat.com>2017-08-22 14:22:36 -0400
commit13c19222889daf91da36b7fb63b5d5d9ce89b377 (patch)
tree6db5ba838a47d935ed25560b797700bd8b14a922 /include
parentd295dbeb2a0c93364444e76b3bb30f587a823e0e (diff)
IB/rdmavt, hfi1, qib: Modify check_ah() to account for extended LIDs
rvt_check_ah() delegates lid verification to underlying driver. Underlying driver uses different conditions to check for dlid depending on whether the device supports extended LIDs Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/rdma/opa_addr.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/include/rdma/opa_addr.h b/include/rdma/opa_addr.h
index 9b5e642cf550..8d3ad4ecbea1 100644
--- a/include/rdma/opa_addr.h
+++ b/include/rdma/opa_addr.h
@@ -48,11 +48,22 @@
#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)
/**
+ * 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
* contains the OPA_STL_OUI identifier. This identifies that
* the provided gid is a special purpose GID meant to carry
@@ -95,4 +106,11 @@ static inline bool opa_is_extended_lid(u32 dlid, u32 slid)
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 */

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