1 files changed, 4 insertions, 7 deletions

diff --git a/drivers/infiniband/hw/ipath/ipath_common.h b/drivers/infiniband/hw/ipath/ipath_common.h
index 9b6ec76c118e..3a849e71638e 100644
--- a/drivers/infiniband/hw/ipath/ipath_common.h
+++ b/drivers/infiniband/hw/ipath/ipath_common.h
@@ -311,6 +311,9 @@ struct ipath_base_info {
         __u32 spi_rcv_egrchunksize;
         /* total size of mmap to cover full rcvegrbuffers */
         __u32 spi_rcv_egrbuftotlen;
+        __u32 spi_filler_for_align;
+        /* address of readonly memory copy of the rcvhdrq tail register. */
+        __u64 spi_rcvhdr_tailaddr;
 } __attribute__ ((aligned(8)));
 
 
@@ -380,13 +383,7 @@ struct ipath_user_info {
          */
         __u32 spu_rcvhdrsize;
 
-        /*
-         * cache line aligned (64 byte) user address to
-         * which the rcvhdrtail register will be written by infinipath
-         * whenever it changes, so that no chip registers are read in
-         * the performance path.
-         */
-        __u64 spu_rcvhdraddr;
+        __u64 spu_unused; /* kept for compatible layout */
 
         /*
          * address of struct base_info to write to