[openib-general] [PATCH 08/18] [RFC] Provider User Mode Support

[Steve Wise]

This is a place holder for user mode support.  We do support user mode
now, but no kernel bypass.  Eventually we intend to support kernel
bypass.

--- old/src/linux-kernel/infiniband/hw/cxgb3/iwch_user.h	1969-12-31 18:00:00.000000000 -0600
+++ new/src/linux-kernel/infiniband/hw/cxgb3/iwch_user.h	2006-03-06 09:26:21.000000000 -0600
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2006 Chelsio, Inc. All rights reserved.
+ * Copyright (c) 2006 Open Grid Computing, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef __IWCH_USER_H__
+#define __IWCH_USER_H__
+
+#define IWCH_UVERBS_ABI_VERSION	1
+
+/*
+ * Make sure that all structs defined in this file remain laid out so
+ * that they pack the same way on 32-bit and 64-bit architectures (to
+ * avoid incompatibility between 32-bit userspace and 64-bit kernels).
+ * In particular do not use pointer types -- pass pointers in __u64
+ * instead.
+ */
+
+struct iwch_create_cq_resp {
+	__u32 cqid;
+	__u32 entries;		/* actual number of entries after creation */
+	__u64 physaddr;		/* library mmaps this to get addressability */
+	__u64 queue;
+};
+
+struct iwch_create_qp_resp {
+	__u32 qpid;
+	__u32 entries;		/* actual number of entries after creation */
+	__u64 physaddr;		/* library mmaps this to get addressability */
+	__u64 physsize;		/* library mmaps this to get addressability */
+	__u64 queue;
+	__u64 sq_db_page;
+	__u64 rq_db_page;
+};
+#endif