IB/cxgb4: Move user vendor structures

This patch moves cxgb4 vendor's specific structures to
common UAPI folder which will be visible to all consumers.

These structures are used by user-space library driver
(libcxgb4) and currently manually copied to that library.

This move will allow cross-compile against these files and
simplify introduction of vendor specific data.

Signed-off-by: Leon Romanovsky <[e-mail]>
Reviewed-by: Steve Wise <[e-mail]>
Signed-off-by: Doug Ledford <[e-mail]>

MAINTAINERS

···
 W:	http://www.openfabrics.org
 S:	Supported
 F:	drivers/infiniband/hw/cxgb4/
+F:	include/uapi/rdma/cxgb4-abi.h
 
 CXGB4VF ETHERNET DRIVER (CXGB4VF)
 M:	Casey Leedom <[e-mail]>

drivers/infiniband/hw/cxgb4/iw_cxgb4.h

···
 #include "cxgb4.h"
 #include "cxgb4_uld.h"
 #include "l2t.h"
-#include "user.h"
+#include <rdma/cxgb4-abi.h>
 
 #define DRV_NAME "iw_cxgb4"
 #define MOD DRV_NAME ":"

drivers/infiniband/hw/cxgb4/user.h include/uapi/rdma/cxgb4-abi.h

···
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */
-#ifndef __C4IW_USER_H__
-#define __C4IW_USER_H__
+#ifndef CXGB4_ABI_USER_H
+#define CXGB4_ABI_USER_H
+
+#include <linux/types.h>
 
 #define C4IW_UVERBS_ABI_VERSION	3
 
···
 	__u32 reserved; /* explicit padding (optional for i386) */
 };
 
-
 enum {
-	C4IW_QPF_ONCHIP = (1<<0)
+	C4IW_QPF_ONCHIP = (1 << 0)
 };
 
 struct c4iw_create_qp_resp {
···
 	__u32 status_page_size;
 	__u32 reserved; /* explicit padding (optional for i386) */
 };
-#endif
+#endif /* CXGB4_ABI_USER_H */

include/uapi/rdma/Kbuild

···
 header-y += hfi/
 header-y += rdma_user_rxe.h
 header-y += cxgb3-abi.h
+header-y += cxgb4-abi.h
 header-y += mlx5-abi.h