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1 /*-
2  * CAM ioctl compatibility shims
3  *
4  * SPDX-License-Identifier: BSD-2-Clause
5  *
6  * Copyright (c) 2013 Scott Long
7  * All rights reserved.
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  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions, and the following disclaimer,
14  *    without modification, immediately at the beginning of the file.
15  * 2. The name of the author may not be used to endorse or promote products
16  *    derived from this software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
22  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  */
30
31 #ifndef _CAM_CAM_COMPAT_H
32 #define _CAM_CAM_COMPAT_H
33
34 /* No user-serviceable parts in here. */
35 #ifdef _KERNEL
36
37 int cam_compat_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
38     struct thread *td, int(*cbfnp)(struct cdev *, u_long, caddr_t, int,
39     struct thread *));
40
41 /* Version 0x16 compatibility */
42 #define CAM_VERSION_0x16        0x16
43
44 /* The size of the union ccb didn't change when going to 0x17 */
45 #define CAMIOCOMMAND_0x16       _IOC(IOC_INOUT, CAM_VERSION_0x16, 2, CAM_0X17_LEN)
46 #define CAMGETPASSTHRU_0x16     _IOC(IOC_INOUT, CAM_VERSION_0x16, 3, CAM_0X17_LEN)
47
48 #define CAM_SCATTER_VALID_0x16  0x00000010
49 #define CAM_SG_LIST_PHYS_0x16   0x00040000
50 #define CAM_DATA_PHYS_0x16      0x00200000
51
52 /* Version 0x17 compatibility */
53 #define CAM_VERSION_0x17        0x17
54
55 struct ccb_hdr_0x17 {
56         cam_pinfo       pinfo;          /* Info for priority scheduling */
57         camq_entry      xpt_links;      /* For chaining in the XPT layer */     
58         camq_entry      sim_links;      /* For chaining in the SIM layer */     
59         camq_entry      periph_links;   /* For chaining in the type driver */
60         uint32_t        retry_count;
61         void            (*cbfcnp)(struct cam_periph *, union ccb *);
62         xpt_opcode      func_code;      /* XPT function code */
63         uint32_t        status;         /* Status returned by CAM subsystem */
64         struct          cam_path *path; /* Compiled path for this ccb */
65         path_id_t       path_id;        /* Path ID for the request */
66         target_id_t     target_id;      /* Target device ID */
67         u_int           target_lun;     /* Target LUN number */
68         uint32_t        flags;          /* ccb_flags */
69         ccb_ppriv_area  periph_priv;
70         ccb_spriv_area  sim_priv;
71         uint32_t        timeout;        /* Hard timeout value in seconds */
72         struct callout  *timeout_ch;
73 };
74
75 struct ccb_pathinq_0x17 {
76         struct ccb_hdr_0x17 ccb_h;
77         uint8_t    version_num; /* Version number for the SIM/HBA */
78         uint8_t    hba_inquiry; /* Mimic of INQ byte 7 for the HBA */
79         uint8_t    target_sprt; /* Flags for target mode support */
80         uint8_t    hba_misc;            /* Misc HBA features */
81         uint16_t   hba_eng_cnt; /* HBA engine count */
82                                         /* Vendor Unique capabilities */
83         uint8_t    vuhba_flags[VUHBALEN];
84         uint32_t   max_target;          /* Maximum supported Target */
85         uint32_t   max_lun;             /* Maximum supported Lun */
86         uint32_t   async_flags; /* Installed Async handlers */
87         path_id_t   hpath_id;           /* Highest Path ID in the subsystem */
88         target_id_t initiator_id;       /* ID of the HBA on the SCSI bus */
89         char        sim_vid[SIM_IDLEN]; /* Vendor ID of the SIM */
90         char        hba_vid[HBA_IDLEN]; /* Vendor ID of the HBA */
91         char        dev_name[DEV_IDLEN];/* Device name for SIM */
92         uint32_t   unit_number; /* Unit number for SIM */
93         uint32_t   bus_id;              /* Bus ID for SIM */
94         uint32_t   base_transfer_speed;/* Base bus speed in KB/sec */
95         cam_proto   protocol;
96         u_int       protocol_version;
97         cam_xport   transport;
98         u_int       transport_version;
99         union {
100                 struct ccb_pathinq_settings_spi spi;
101                 struct ccb_pathinq_settings_fc fc;
102                 struct ccb_pathinq_settings_sas sas;
103                 char ccb_pathinq_settings_opaque[PATHINQ_SETTINGS_SIZE];
104         } xport_specific;
105         u_int           maxio;          /* Max supported I/O size, in bytes. */
106         uint16_t        hba_vendor;     /* HBA vendor ID */
107         uint16_t        hba_device;     /* HBA device ID */
108         uint16_t        hba_subvendor;  /* HBA subvendor ID */
109         uint16_t        hba_subdevice;  /* HBA subdevice ID */
110 };
111
112 struct ccb_trans_settings_0x17 {
113         struct    ccb_hdr_0x17 ccb_h;
114         cts_type  type;         /* Current or User settings */
115         cam_proto protocol;
116         u_int     protocol_version;
117         cam_xport transport;
118         u_int     transport_version;
119         union {
120                 u_int  valid;   /* Which fields to honor */
121                 struct ccb_trans_settings_ata ata;
122                 struct ccb_trans_settings_scsi scsi;
123         } proto_specific;
124         union {
125                 u_int  valid;   /* Which fields to honor */
126                 struct ccb_trans_settings_spi spi;
127                 struct ccb_trans_settings_fc fc;
128                 struct ccb_trans_settings_sas sas;
129                 struct ccb_trans_settings_pata ata;
130                 struct ccb_trans_settings_sata sata;
131         } xport_specific;
132 };
133
134 #define CAM_0X17_DATA_LEN       CAM_0X18_DATA_LEN
135 #define CAM_0X17_LEN            (sizeof(struct ccb_hdr_0x17) + CAM_0X17_DATA_LEN)
136
137 #define CAMIOCOMMAND_0x17       _IOC(IOC_INOUT, CAM_VERSION_0x17, 2, CAM_0X17_LEN)
138 #define CAMGETPASSTHRU_0x17     _IOC(IOC_INOUT, CAM_VERSION_0x17, 3, CAM_0X17_LEN)
139
140 /* Version 0x18 compatibility */
141 #define CAM_VERSION_0x18        0x18
142
143 struct ccb_hdr_0x18 {
144         cam_pinfo       pinfo;          /* Info for priority scheduling */
145         camq_entry      xpt_links;      /* For chaining in the XPT layer */     
146         camq_entry      sim_links;      /* For chaining in the SIM layer */     
147         camq_entry      periph_links;   /* For chaining in the type driver */
148         uint32_t        retry_count;
149         void            (*cbfcnp)(struct cam_periph *, union ccb *);
150         xpt_opcode      func_code;      /* XPT function code */
151         uint32_t        status;         /* Status returned by CAM subsystem */
152         struct          cam_path *path; /* Compiled path for this ccb */
153         path_id_t       path_id;        /* Path ID for the request */
154         target_id_t     target_id;      /* Target device ID */
155         u_int           target_lun;     /* Target LUN number */
156         uint64_t        ext_lun;        /* 64-bit LUN, more or less */
157         uint32_t        flags;          /* ccb_flags */
158         uint32_t        xflags;         /* extended ccb_flags */
159         ccb_ppriv_area  periph_priv;
160         ccb_spriv_area  sim_priv;
161         ccb_qos_area    qos;
162         uint32_t        timeout;        /* Hard timeout value in seconds */
163         struct timeval  softtimeout;    /* Soft timeout value in sec + usec */
164 };
165
166 typedef enum {
167         CAM_EXTLUN_VALID_0x18   = 0x00000001,/* 64bit lun field is valid      */
168 } ccb_xflags_0x18;
169
170 struct ccb_trans_settings_0x18 {
171         struct    ccb_hdr_0x18 ccb_h;
172         cts_type  type;         /* Current or User settings */
173         cam_proto protocol;
174         u_int     protocol_version;
175         cam_xport transport;
176         u_int     transport_version;
177         union {
178                 u_int  valid;   /* Which fields to honor */
179                 struct ccb_trans_settings_ata ata;
180                 struct ccb_trans_settings_scsi scsi;
181         } proto_specific;
182         union {
183                 u_int  valid;   /* Which fields to honor */
184                 struct ccb_trans_settings_spi spi;
185                 struct ccb_trans_settings_fc fc;
186                 struct ccb_trans_settings_sas sas;
187                 struct ccb_trans_settings_pata ata;
188                 struct ccb_trans_settings_sata sata;
189         } xport_specific;
190 };
191
192 struct dev_match_result_0x18 {
193         dev_match_type          type;
194         union {
195                 struct {
196                         char periph_name[DEV_IDLEN];
197                         uint32_t unit_number;
198                         path_id_t path_id;
199                         target_id_t target_id;
200                         u_int target_lun;
201                 } periph_result;
202                 struct {
203                         path_id_t       path_id;
204                         target_id_t     target_id;
205                         u_int           target_lun;
206                         cam_proto       protocol;
207                         struct scsi_inquiry_data inq_data;
208                         struct ata_params ident_data;
209                         dev_result_flags flags;
210                 } device_result;
211                 struct bus_match_result bus_result;
212         } result;
213 };
214
215 #define CAM_0X18_DATA_LEN       (sizeof(union ccb) - 2*sizeof(void *) - sizeof(struct ccb_hdr))
216 #define CAM_0X18_LEN            (sizeof(struct ccb_hdr_0x18) + CAM_0X18_DATA_LEN)
217
218 #define CAMIOCOMMAND_0x18       _IOC(IOC_INOUT, CAM_VERSION_0x18, 2, CAM_0X18_LEN)
219 #define CAMGETPASSTHRU_0x18     _IOC(IOC_INOUT, CAM_VERSION_0x18, 3, CAM_0X18_LEN)
220
221 /* Version 0x19 compatibility */
222 #define CAM_VERSION_0x19        0x19
223 #define CAMIOCOMMAND_0x19       _IOWR(CAM_VERSION_0x19, 2, union ccb)
224 #define CAMGETPASSTHRU_0x19     _IOWR(CAM_VERSION_0x19, 3, union ccb)
225 #define CAMIOQUEUE_0x19         _IO(CAM_VERSION_0x19, 4)
226 #define CAMIOGET_0x19           _IO(CAM_VERSION_0x19, 5)
227
228 #endif
229 #endif