IB/ipath: Force PIOAvail update entry point

Due to a chip bug, the PIOAvail register is not always updated to
memory.  This patch allows userspace to force an update.

Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/drivers/infiniband/hw/ipath/ipath_common.h b/drivers/infiniband/hw/ipath/ipath_common.h
index 048b928bb4bf..10c008f22ba6 100644
--- a/drivers/infiniband/hw/ipath/ipath_common.h
+++ b/drivers/infiniband/hw/ipath/ipath_common.h
@@ -352,7 +352,7 @@ struct ipath_base_info {
  * may not be implemented; the user code must deal with this if it
  * cares, or it must abort after initialization reports the difference.
  */
-#define IPATH_USER_SWMINOR 4
+#define IPATH_USER_SWMINOR 5
 
 #define IPATH_USER_SWVERSION ((IPATH_USER_SWMAJOR<<16) | IPATH_USER_SWMINOR)
 
@@ -429,8 +429,11 @@ struct ipath_user_info {
 #define __IPATH_CMD_SLAVE_INFO  22      /* return info on slave processes (for old user code) */
 #define IPATH_CMD_ASSIGN_PORT   23      /* allocate HCA and port */
 #define IPATH_CMD_USER_INIT     24      /* set up userspace */
+#define IPATH_CMD_UNUSED_1      25
+#define IPATH_CMD_UNUSED_2      26
+#define IPATH_CMD_PIOAVAILUPD   27      /* force an update of PIOAvail reg */
 
-#define IPATH_CMD_MAX           24
+#define IPATH_CMD_MAX           27
 
 struct ipath_port_info {
         __u32 num_active;       /* number of active units */