1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2010, LSI Corp. 5 * All rights reserved. 6 * Author : Manjunath Ranganathaiah 7 * Support: freebsdraid@lsi.com 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in 17 * the documentation and/or other materials provided with the 18 * distribution. 19 * 3. Neither the name of the <ORGANIZATION> nor the names of its 20 * contributors may be used to endorse or promote products derived 21 * from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 26 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 27 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 29 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 30 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 33 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 34 * POSSIBILITY OF SUCH DAMAGE. 35 * 36 * $FreeBSD$ 37 */ 38 39 #define TWS_AEN_NOT_RETRIEVED 0x1 40 #define TWS_AEN_RETRIEVED 0x2 41 42 #define TWS_AEN_NO_EVENTS 0x1003 /* No more events */ 43 #define TWS_AEN_OVERFLOW 0x1004 /* AEN overflow occurred */ 44 45 #define TWS_IOCTL_LOCK_NOT_HELD 0x1001 /* Not locked */ 46 #define TWS_IOCTL_LOCK_ALREADY_HELD 0x1002 /* Already locked */ 47 48 #define TWS_IOCTL_LOCK_HELD 0x1 49 #define TWS_IOCTL_LOCK_FREE 0x0 50 51 #pragma pack(1) 52 53 /* Structure used to handle GET/RELEASE LOCK ioctls. */ 54 struct tws_lock_packet { 55 u_int32_t timeout_msec; 56 u_int32_t time_remaining_msec; 57 u_int32_t force_flag; 58 }; 59 60 /* Structure used to handle GET COMPATIBILITY INFO ioctl. */ 61 struct tws_compatibility_packet { 62 u_int8_t driver_version[32];/* driver version */ 63 u_int16_t working_srl; /* driver & firmware negotiated srl */ 64 u_int16_t working_branch; /* branch # of the firmware that the 65 driver is compatible with */ 66 u_int16_t working_build; /* build # of the firmware that the 67 driver is compatible with */ 68 u_int16_t driver_srl_high;/* highest driver supported srl */ 69 u_int16_t driver_branch_high;/* highest driver supported branch */ 70 u_int16_t driver_build_high;/* highest driver supported build */ 71 u_int16_t driver_srl_low;/* lowest driver supported srl */ 72 u_int16_t driver_branch_low;/* lowest driver supported branch */ 73 u_int16_t driver_build_low;/* lowest driver supported build */ 74 u_int16_t fw_on_ctlr_srl; /* srl of running firmware */ 75 u_int16_t fw_on_ctlr_branch;/* branch # of running firmware */ 76 u_int16_t fw_on_ctlr_build;/* build # of running firmware */ 77 }; 78 79 /* Driver understandable part of the ioctl packet built by the API. */ 80 struct tws_driver_packet { 81 u_int32_t control_code; 82 u_int32_t status; 83 u_int32_t unique_id; 84 u_int32_t sequence_id; 85 u_int32_t os_status; 86 u_int32_t buffer_length; 87 }; 88 89 /* ioctl packet built by the API. */ 90 struct tws_ioctl_packet { 91 struct tws_driver_packet driver_pkt; 92 char padding[488]; 93 struct tws_command_packet cmd_pkt; 94 char data_buf[1]; 95 }; 96 97 #pragma pack() 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 #include <sys/ioccom.h> 118 119 #pragma pack(1) 120 121 struct tws_ioctl_with_payload { 122 struct tws_driver_packet driver_pkt; 123 char padding[488]; 124 struct tws_command_packet cmd_pkt; 125 union { 126 struct tws_event_packet event_pkt; 127 struct tws_lock_packet lock_pkt; 128 struct tws_compatibility_packet compat_pkt; 129 char data_buf[1]; 130 } payload; 131 }; 132 133 #pragma pack() 134 135 /* ioctl cmds */ 136 137 #define TWS_IOCTL_SCAN_BUS \ 138 _IO('T', 200) 139 #define TWS_IOCTL_FIRMWARE_PASS_THROUGH \ 140 _IOWR('T', 202, struct tws_ioctl_no_data_buf) 141 #define TWS_IOCTL_GET_FIRST_EVENT \ 142 _IOWR('T', 203, struct tws_ioctl_with_payload) 143 #define TWS_IOCTL_GET_LAST_EVENT \ 144 _IOWR('T', 204, struct tws_ioctl_with_payload) 145 #define TWS_IOCTL_GET_NEXT_EVENT \ 146 _IOWR('T', 205, struct tws_ioctl_with_payload) 147 #define TWS_IOCTL_GET_PREVIOUS_EVENT \ 148 _IOWR('T', 206, struct tws_ioctl_with_payload) 149 #define TWS_IOCTL_GET_LOCK \ 150 _IOWR('T', 207, struct tws_ioctl_with_payload) 151 #define TWS_IOCTL_RELEASE_LOCK \ 152 _IOWR('T', 208, struct tws_ioctl_with_payload) 153 #define TWS_IOCTL_GET_COMPATIBILITY_INFO \ 154 _IOWR('T', 209, struct tws_ioctl_with_payload) 155