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 * $FreeBSD$ 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) 156 157