IB/sa: Add GuidInfoRecord query support

This query is needed for SRIOV alias GUID support.

The query is implemented per the IB Spec definition
in section 15.2.5.18 (GuidInfoRecord).

Signed-off-by: Erez Shitrit <erezsh@mellanox.co.il>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/include/rdma/ib_sa.h b/include/rdma/ib_sa.h
index d44a56388a3e..8275e539bace 100644
--- a/include/rdma/ib_sa.h
+++ b/include/rdma/ib_sa.h
@@ -251,6 +251,28 @@ struct ib_sa_service_rec {
         u64             data64[2];
 };
 
+#define IB_SA_GUIDINFO_REC_LID          IB_SA_COMP_MASK(0)
+#define IB_SA_GUIDINFO_REC_BLOCK_NUM    IB_SA_COMP_MASK(1)
+#define IB_SA_GUIDINFO_REC_RES1         IB_SA_COMP_MASK(2)
+#define IB_SA_GUIDINFO_REC_RES2         IB_SA_COMP_MASK(3)
+#define IB_SA_GUIDINFO_REC_GID0         IB_SA_COMP_MASK(4)
+#define IB_SA_GUIDINFO_REC_GID1         IB_SA_COMP_MASK(5)
+#define IB_SA_GUIDINFO_REC_GID2         IB_SA_COMP_MASK(6)
+#define IB_SA_GUIDINFO_REC_GID3         IB_SA_COMP_MASK(7)
+#define IB_SA_GUIDINFO_REC_GID4         IB_SA_COMP_MASK(8)
+#define IB_SA_GUIDINFO_REC_GID5         IB_SA_COMP_MASK(9)
+#define IB_SA_GUIDINFO_REC_GID6         IB_SA_COMP_MASK(10)
+#define IB_SA_GUIDINFO_REC_GID7         IB_SA_COMP_MASK(11)
+
+struct ib_sa_guidinfo_rec {
+        __be16  lid;
+        u8      block_num;
+        /* reserved */
+        u8      res1;
+        __be32  res2;
+        u8      guid_info_list[64];
+};
+
 struct ib_sa_client {
         atomic_t users;
         struct completion comp;
@@ -385,4 +407,15 @@ int ib_init_ah_from_path(struct ib_device *device, u8 port_num,
  */
 void ib_sa_unpack_path(void *attribute, struct ib_sa_path_rec *rec);
 
+/* Support GuidInfoRecord */
+int ib_sa_guid_info_rec_query(struct ib_sa_client *client,
+                              struct ib_device *device, u8 port_num,
+                              struct ib_sa_guidinfo_rec *rec,
+                              ib_sa_comp_mask comp_mask, u8 method,
+                              int timeout_ms, gfp_t gfp_mask,
+                              void (*callback)(int status,
+                                               struct ib_sa_guidinfo_rec *resp,
+                                               void *context),
+                              void *context,
+                              struct ib_sa_query **sa_query);
 #endif /* IB_SA_H */