diff options
Diffstat (limited to 'net/rds/ib.h')
| -rw-r--r-- | net/rds/ib.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/net/rds/ib.h b/net/rds/ib.h index 420afb95ca1..c0de7af6cf6 100644 --- a/net/rds/ib.h +++ b/net/rds/ib.h @@ -358,17 +358,25 @@ extern ctl_table rds_ib_sysctl_table[]; /* * Helper functions for getting/setting the header and data SGEs in * RDS packets (not RDMA) + * + * From version 3.1 onwards, header is in front of data in the sge. */ static inline struct ib_sge * rds_ib_header_sge(struct rds_ib_connection *ic, struct ib_sge *sge) { - return &sge[0]; + if (ic->conn->c_version > RDS_PROTOCOL_3_0) + return &sge[0]; + else + return &sge[1]; } static inline struct ib_sge * rds_ib_data_sge(struct rds_ib_connection *ic, struct ib_sge *sge) { - return &sge[1]; + if (ic->conn->c_version > RDS_PROTOCOL_3_0) + return &sge[1]; + else + return &sge[0]; } #endif |