1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2000 Michael Smith 5 * Copyright (c) 2003 Paul Saab 6 * Copyright (c) 2003 Vinod Kashyap 7 * Copyright (c) 2000 BSDi 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 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 the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $FreeBSD: stable/12/sys/dev/twe/tweio.h 326255 2017-11-27 14:52:40Z pfg $ 32 */ 33 34 35 /* 36 * User-space command 37 * 38 * Note that the command's scatter/gather list will be computed by the 39 * driver, and cannot be filled in by the consumer. 40 */ 41 struct twe_usercommand { 42 TWE_Command tu_command; /* command ready for the controller */ 43 void *tu_data; /* pointer to data in userspace */ 44 size_t tu_size; /* userspace data length */ 45 }; 46 47 #define TWEIO_COMMAND _IOWR('T', 100, struct twe_usercommand) 48 49 /* 50 * Command queue statistics 51 */ 52 #define TWEQ_FREE 0 53 #define TWEQ_BIO 1 54 #define TWEQ_READY 2 55 #define TWEQ_BUSY 3 56 #define TWEQ_COMPLETE 4 57 #define TWEQ_COUNT 5 /* total number of queues */ 58 59 struct twe_qstat { 60 u_int32_t q_length; 61 u_int32_t q_max; 62 u_int32_t q_min; 63 }; 64 65 /* 66 * Statistics request 67 */ 68 union twe_statrequest { 69 u_int32_t ts_item; 70 struct twe_qstat ts_qstat; 71 }; 72 73 #define TWEIO_STATS _IOWR('T', 101, union twe_statrequest) 74 75 /* 76 * AEN listen 77 */ 78 #define TWEIO_AEN_POLL _IOR('T', 102, u_int16_t) 79 #define TWEIO_AEN_WAIT _IOR('T', 103, u_int16_t) 80 81 /* 82 * Controller parameter access 83 */ 84 struct twe_paramcommand { 85 u_int16_t tp_table_id; 86 u_int8_t tp_param_id; 87 void *tp_data; 88 u_int8_t tp_size; 89 }; 90 91 #define TWEIO_SET_PARAM _IOW ('T', 104, struct twe_paramcommand) 92 #define TWEIO_GET_PARAM _IOW ('T', 105, struct twe_paramcommand) 93 94 /* 95 * Request a controller soft-reset 96 */ 97 #define TWEIO_RESET _IO ('T', 106) 98 99 /* 100 * Request a drive addition or deletion 101 */ 102 struct twe_drivecommand { 103 int td_unit; 104 }; 105 106 #define TWEIO_ADD_UNIT _IOW ('U', 107, int) 107 #define TWEIO_DEL_UNIT _IOW ('U', 108, int) 108