mrsas_ioctl.h revision 265555 
1/*
2 * Copyright (c) 2014, LSI Corp.
3 * All rights reserved.
4 * Author: Marian Choy
5 * Support: freebsdraid@lsi.com
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in
15 *    the documentation and/or other materials provided with the
16 *    distribution.
17 * 3. Neither the name of the <ORGANIZATION> nor the names of its
18 *    contributors may be used to endorse or promote products derived
19 *    from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
29 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGE.
33 *
34 * The views and conclusions contained in the software and documentation
35 * are those of the authors and should not be interpreted as representing
36 * official policies,either expressed or implied, of the FreeBSD Project.
37 *
38 * Send feedback to: <megaraidfbsd@lsi.com>
39 * Mail to: LSI Corporation, 1621 Barber Lane, Milpitas, CA 95035
40 *    ATTN: MegaRaid FreeBSD
41 *
42 */
43
44#include <sys/cdefs.h>
45__FBSDID("$FreeBSD: head/sys/dev/mrsas/mrsas_ioctl.h 265555 2014-05-07 16:16:49Z ambrisko $");
46
47#ifndef MRSAS_IOCTL_H
48#define MRSAS_IOCTL_H
49
50#ifndef _IOWR
51#include <sys/ioccom.h>
52#endif  /* !_IOWR */
53
54/*
55 * We need to use the same values as the mfi driver until MegaCli adds
56 * support for this (mrsas) driver:
57 *    M is for MegaRAID. (This is typically the vendor or product initial)
58 *    1 arbitrary. (This may be used to segment kinds of commands.
59 *    (1-9 status, 10-20 policy, etc.)
60 *    struct mrsas_iocpacket (sizeof() this parameter will be used.)
61 * These three values are encoded into a somewhat unique, 32-bit value.
62 */
63
64#define MRSAS_IOC_FIRMWARE_PASS_THROUGH   _IOWR('M', 1, struct mrsas_iocpacket)
65
66#define MRSAS_IOC_SCAN_BUS                _IO('M',  10)
67
68#define MAX_IOCTL_SGE                   16
69#define MFI_FRAME_DIR_READ              0x0010
70#define MFI_CMD_LD_SCSI_IO              0x03
71
72#define INQUIRY_CMD     0x12
73#define INQUIRY_CMDLEN  6
74#define INQUIRY_REPLY_LEN 96
75#define INQUIRY_VENDOR  8       /* Offset in reply data to vendor name */
76#define SCSI_SENSE_BUFFERSIZE  96
77
78#define MEGAMFI_RAW_FRAME_SIZE 128
79
80
81#pragma pack(1)
82struct mrsas_iocpacket {
83    u_int16_t host_no;
84    u_int16_t __pad1;
85    u_int32_t sgl_off;
86    u_int32_t sge_count;
87    u_int32_t sense_off;
88    u_int32_t sense_len;
89    union {
90        u_int8_t raw[MEGAMFI_RAW_FRAME_SIZE];
91        struct mrsas_header hdr;
92    } frame;
93    struct iovec sgl[MAX_IOCTL_SGE];
94};
95#pragma pack()
96
97#endif /* MRSAS_IOCTL_H */
98