Define the VAS_TX_WIN_OPEN and VAS_RX_WIN_OPEN ioctl interface. Each user
of VAS, like the NX-FTW driver in a follow-on patch, should implement
these ioctls.

Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com>
---
 arch/powerpc/include/uapi/asm/vas.h | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/powerpc/include/uapi/asm/vas.h 
b/arch/powerpc/include/uapi/asm/vas.h
index 21249f5..e9730fb 100644
--- a/arch/powerpc/include/uapi/asm/vas.h
+++ b/arch/powerpc/include/uapi/asm/vas.h
@@ -10,6 +10,8 @@
 #ifndef _UAPI_MISC_VAS_H
 #define _UAPI_MISC_VAS_H
 
+#include <asm/ioctl.h>
+
 /*
  * Threshold Control Mode: Have paste operation fail if the number of
  * requests in receive FIFO exceeds a threshold.
@@ -22,6 +24,34 @@
 #define VAS_THRESH_FIFO_GT_QTR_FULL    2
 #define VAS_THRESH_FIFO_GT_EIGHTH_FULL 3
 
+#define VAS_FLAGS_PIN_WINDOW           0x1
+#define VAS_FLAGS_HIGH_PRI             0x2
+
+#define VAS_TX_WIN_OPEN                _IOW('v', 1, struct 
vas_tx_win_open_attr)
+#define VAS_RX_WIN_OPEN                _IOW('v', 2, struct 
vas_rx_win_open_attr)
+
+struct vas_tx_win_open_attr {
+       int16_t         version;
+       int16_t         vas_id;
+       uint32_t        rx_win_handle;
+
+       int64_t         reserved1;
+
+       int64_t         flags;
+       int64_t         reserved2;
+
+       int32_t         tc_mode;
+       int32_t         rsvd_txbuf;
+       int64_t         reserved3[6];
+};
+
+struct vas_rx_win_open_attr {
+       int16_t         version;
+       int16_t         vas_id;
+       uint32_t        rx_win_handle;  /* output field */
+       int64_t         reserved[8];
+};
+
 /*
  * Get/Set bit fields
  */
-- 
2.7.4

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