Add a new personality to mpt(4) devices to allow userland applications to

perform various operations on a controller.  Specifically, for each mpt(4)
device, create a character device in devfs which accepts ioctl requests for
reading and writing configuration pages and performing RAID actions.

MFC after:	1 week
Reviewed by:	scottl

1 files changed, 132 insertions, 0 deletions

diff --git a/sys/sys/mpt_ioctl.h b/sys/sys/mpt_ioctl.h
new file mode 100644
index 0000000..3f17433
--- /dev/null
+++ b/sys/sys/mpt_ioctl.h
@@ -0,0 +1,132 @@
+/*-
+ * Copyright (c) 2008 Yahoo!, Inc.
+ * All rights reserved.
+ * Written by: John Baldwin <jhb@FreeBSD.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * LSI MPT-Fusion Host Adapter FreeBSD userland interface
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _MPT_IOCTL_H_
+#define	_MPT_IOCTL_H_
+
+#include <dev/mpt/mpilib/mpi_type.h>
+#include <dev/mpt/mpilib/mpi.h>
+#include <dev/mpt/mpilib/mpi_cnfg.h>
+
+/*
+ * For the read header requests, the header should include the page
+ * type or extended page type, page number, and page version.  The
+ * buffer and length are unused.  The completed header is returned in
+ * the 'header' member.
+ *
+ * For the read page and write page requests, 'buf' should point to a
+ * buffer of 'len' bytes which holds the entire page (including the
+ * header).
+ *
+ * All requests specify the page address in 'page_address'.
+ */
+struct mpt_cfg_page_req {	
+	CONFIG_PAGE_HEADER header;
+	uint32_t page_address;
+	void	*buf;
+	int	len;
+	uint16_t ioc_status;
+};
+
+struct mpt_ext_cfg_page_req {
+	CONFIG_EXTENDED_PAGE_HEADER header;
+	uint32_t page_address;
+	void	*buf;
+	int	len;
+	uint16_t ioc_status;
+};
+
+struct mpt_raid_action {
+	uint8_t action;
+	uint8_t volume_bus;
+	uint8_t volume_id;
+	uint8_t phys_disk_num;
+	uint32_t action_data_word;
+	void *buf;
+	int len;
+	uint32_t volume_status;
+	uint32_t action_data[4];
+	uint16_t action_status;
+	uint16_t ioc_status;
+	uint8_t write;
+};
+
+#define	MPTIO_READ_CFG_HEADER	_IOWR('M', 100, struct mpt_cfg_page_req)
+#define	MPTIO_READ_CFG_PAGE	_IOWR('M', 101, struct mpt_cfg_page_req)
+#define	MPTIO_READ_EXT_CFG_HEADER _IOWR('M', 102, struct mpt_ext_cfg_page_req)
+#define	MPTIO_READ_EXT_CFG_PAGE	_IOWR('M', 103, struct mpt_ext_cfg_page_req)
+#define	MPTIO_WRITE_CFG_PAGE	_IOWR('M', 104, struct mpt_cfg_page_req)
+#define	MPTIO_RAID_ACTION	_IOWR('M', 105, struct mpt_raid_action)
+
+#if defined(__amd64__)
+struct mpt_cfg_page_req32 {
+	CONFIG_PAGE_HEADER header;
+	uint32_t page_address;
+	uint32_t buf;
+	int	len;	
+	uint16_t ioc_status;
+};
+
+struct mpt_ext_cfg_page_req32 {
+	CONFIG_EXTENDED_PAGE_HEADER header;
+	uint32_t page_address;
+	uint32_t buf;
+	int	len;
+	uint16_t ioc_status;
+};
+
+struct mpt_raid_action32 {
+	uint8_t action;
+	uint8_t volume_bus;
+	uint8_t volume_id;
+	uint8_t phys_disk_num;
+	uint32_t action_data_word;
+	uint32_t buf;
+	int len;
+	uint32_t volume_status;
+	uint32_t action_data[4];
+	uint16_t action_status;
+	uint16_t ioc_status;
+	uint8_t write;
+};
+
+#define	MPTIO_READ_CFG_HEADER32	_IOWR('M', 100, struct mpt_cfg_page_req32)
+#define	MPTIO_READ_CFG_PAGE32	_IOWR('M', 101, struct mpt_cfg_page_req32)
+#define	MPTIO_READ_EXT_CFG_HEADER32 _IOWR('M', 102, struct mpt_ext_cfg_page_req32)
+#define	MPTIO_READ_EXT_CFG_PAGE32 _IOWR('M', 103, struct mpt_ext_cfg_page_req32)
+#define	MPTIO_WRITE_CFG_PAGE32	_IOWR('M', 104, struct mpt_cfg_page_req32)
+#define	MPTIO_RAID_ACTION32	_IOWR('M', 105, struct mpt_raid_action32)
+#endif
+
+#endif /* !_MPT_IOCTL_H_ */