The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/tws/tws_user.h

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    1 /*
    2  * Copyright (c) 2010, LSI Corp.
    3  * All rights reserved.
    4  * Author : Manjunath Ranganathaiah
    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  * $FreeBSD: releng/11.2/sys/dev/tws/tws_user.h 331722 2018-03-29 02:50:57Z eadler $
   35  */
   36 
   37 #define TWS_AEN_NOT_RETRIEVED        0x1
   38 #define TWS_AEN_RETRIEVED            0x2
   39 
   40 #define TWS_AEN_NO_EVENTS            0x1003  /* No more events */
   41 #define TWS_AEN_OVERFLOW             0x1004  /* AEN overflow occurred */
   42 
   43 #define TWS_IOCTL_LOCK_NOT_HELD      0x1001   /* Not locked */
   44 #define TWS_IOCTL_LOCK_ALREADY_HELD  0x1002   /* Already locked */
   45 
   46 #define TWS_IOCTL_LOCK_HELD          0x1
   47 #define TWS_IOCTL_LOCK_FREE          0x0
   48 
   49 #pragma pack(1)
   50 
   51 /* Structure used to handle GET/RELEASE LOCK ioctls. */
   52 struct tws_lock_packet {
   53     u_int32_t       timeout_msec;
   54     u_int32_t       time_remaining_msec;
   55     u_int32_t       force_flag;
   56 };
   57 
   58 /* Structure used to handle GET COMPATIBILITY INFO ioctl. */
   59 struct tws_compatibility_packet {
   60     u_int8_t    driver_version[32];/* driver version */
   61     u_int16_t   working_srl;    /* driver & firmware negotiated srl */
   62     u_int16_t   working_branch; /* branch # of the firmware that the
   63                                     driver is compatible with */
   64     u_int16_t   working_build;  /* build # of the firmware that the
   65                                         driver is compatible with */
   66     u_int16_t   driver_srl_high;/* highest driver supported srl */
   67     u_int16_t   driver_branch_high;/* highest driver supported branch */
   68     u_int16_t   driver_build_high;/* highest driver supported build */
   69     u_int16_t   driver_srl_low;/* lowest driver supported srl */
   70     u_int16_t   driver_branch_low;/* lowest driver supported branch */
   71     u_int16_t   driver_build_low;/* lowest driver supported build */
   72     u_int16_t   fw_on_ctlr_srl; /* srl of running firmware */
   73     u_int16_t   fw_on_ctlr_branch;/* branch # of running firmware */
   74     u_int16_t   fw_on_ctlr_build;/* build # of running firmware */
   75 };
   76 
   77 
   78 /* Driver understandable part of the ioctl packet built by the API. */
   79 struct tws_driver_packet {
   80     u_int32_t       control_code;
   81     u_int32_t       status;
   82     u_int32_t       unique_id;
   83     u_int32_t       sequence_id;
   84     u_int32_t       os_status;
   85     u_int32_t       buffer_length;
   86 };
   87 
   88 /* ioctl packet built by the API. */
   89 struct tws_ioctl_packet {
   90     struct tws_driver_packet      driver_pkt;
   91     char                          padding[488];
   92     struct tws_command_packet     cmd_pkt;
   93     char                          data_buf[1];
   94 };
   95 
   96 #pragma pack()
   97 
   98 
   99 #pragma pack(1)
  100 /*
  101  * We need the structure below to ensure that the first byte of
  102  * data_buf is not overwritten by the kernel, after we return
  103  * from the ioctl call.  Note that cmd_pkt has been reduced
  104  * to an array of 1024 bytes even though it's actually 2048 bytes
  105  * in size.  This is because, we don't expect requests from user
  106  * land requiring 2048 (273 sg elements) byte cmd pkts.
  107  */
  108 struct tws_ioctl_no_data_buf {
  109     struct tws_driver_packet     driver_pkt;
  110     void                         *pdata; /* points to data_buf */
  111     char                         padding[488 - sizeof(void *)];
  112     struct tws_command_packet    cmd_pkt;
  113 };
  114 
  115 #pragma pack()
  116 
  117 
  118 #include <sys/ioccom.h> 
  119 
  120 #pragma pack(1)
  121 
  122 struct tws_ioctl_with_payload {
  123     struct tws_driver_packet     driver_pkt;
  124     char                         padding[488];
  125     struct tws_command_packet    cmd_pkt;
  126     union {
  127         struct tws_event_packet               event_pkt;
  128         struct tws_lock_packet                lock_pkt;
  129         struct tws_compatibility_packet       compat_pkt;
  130         char                                  data_buf[1];
  131     } payload;
  132 };
  133 
  134 #pragma pack()
  135 
  136 /* ioctl cmds */
  137 
  138 #define TWS_IOCTL_SCAN_BUS                            \
  139         _IO('T', 200)
  140 #define TWS_IOCTL_FIRMWARE_PASS_THROUGH               \
  141         _IOWR('T', 202, struct tws_ioctl_no_data_buf)
  142 #define TWS_IOCTL_GET_FIRST_EVENT                     \
  143         _IOWR('T', 203, struct tws_ioctl_with_payload)
  144 #define TWS_IOCTL_GET_LAST_EVENT                      \
  145         _IOWR('T', 204, struct tws_ioctl_with_payload)
  146 #define TWS_IOCTL_GET_NEXT_EVENT                      \
  147         _IOWR('T', 205, struct tws_ioctl_with_payload)
  148 #define TWS_IOCTL_GET_PREVIOUS_EVENT                  \
  149         _IOWR('T', 206, struct tws_ioctl_with_payload)
  150 #define TWS_IOCTL_GET_LOCK                            \
  151         _IOWR('T', 207, struct tws_ioctl_with_payload)
  152 #define TWS_IOCTL_RELEASE_LOCK                        \
  153         _IOWR('T', 208, struct tws_ioctl_with_payload)
  154 #define TWS_IOCTL_GET_COMPATIBILITY_INFO              \
  155         _IOWR('T', 209, struct tws_ioctl_with_payload)
  156 

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