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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _GDTH_IOCTL_H
3#define _GDTH_IOCTL_H
4
5/* gdth_ioctl.h
6 * $Id: gdth_ioctl.h,v 1.14 2004/02/19 15:43:15 achim Exp $
7 */
8
9/* IOCTLs */
10#define GDTIOCTL_MASK ('J'<<8)
11#define GDTIOCTL_GENERAL (GDTIOCTL_MASK | 0) /* general IOCTL */
12#define GDTIOCTL_DRVERS (GDTIOCTL_MASK | 1) /* get driver version */
13#define GDTIOCTL_CTRTYPE (GDTIOCTL_MASK | 2) /* get controller type */
14#define GDTIOCTL_OSVERS (GDTIOCTL_MASK | 3) /* get OS version */
15#define GDTIOCTL_HDRLIST (GDTIOCTL_MASK | 4) /* get host drive list */
16#define GDTIOCTL_CTRCNT (GDTIOCTL_MASK | 5) /* get controller count */
17#define GDTIOCTL_LOCKDRV (GDTIOCTL_MASK | 6) /* lock host drive */
18#define GDTIOCTL_LOCKCHN (GDTIOCTL_MASK | 7) /* lock channel */
19#define GDTIOCTL_EVENT (GDTIOCTL_MASK | 8) /* read controller events */
20#define GDTIOCTL_SCSI (GDTIOCTL_MASK | 9) /* SCSI command */
21#define GDTIOCTL_RESET_BUS (GDTIOCTL_MASK |10) /* reset SCSI bus */
22#define GDTIOCTL_RESCAN (GDTIOCTL_MASK |11) /* rescan host drives */
23#define GDTIOCTL_RESET_DRV (GDTIOCTL_MASK |12) /* reset (remote) drv. res. */
24
25#define GDTIOCTL_MAGIC 0xaffe0004
26#define EVENT_SIZE 294
27#define GDTH_MAXSG 32 /* max. s/g elements */
28
29#define MAX_LDRIVES 255 /* max. log. drive count */
30#define MAX_HDRIVES MAX_LDRIVES /* max. host drive count */
31
32/* scatter/gather element */
33typedef struct {
34 u32 sg_ptr; /* address */
35 u32 sg_len; /* length */
36} __attribute__((packed)) gdth_sg_str;
37
38/* scatter/gather element - 64bit addresses */
39typedef struct {
40 u64 sg_ptr; /* address */
41 u32 sg_len; /* length */
42} __attribute__((packed)) gdth_sg64_str;
43
44/* command structure */
45typedef struct {
46 u32 BoardNode; /* board node (always 0) */
47 u32 CommandIndex; /* command number */
48 u16 OpCode; /* the command (READ,..) */
49 union {
50 struct {
51 u16 DeviceNo; /* number of cache drive */
52 u32 BlockNo; /* block number */
53 u32 BlockCnt; /* block count */
54 u32 DestAddr; /* dest. addr. (if s/g: -1) */
55 u32 sg_canz; /* s/g element count */
56 gdth_sg_str sg_lst[GDTH_MAXSG]; /* s/g list */
57 } __attribute__((packed)) cache; /* cache service cmd. str. */
58 struct {
59 u16 DeviceNo; /* number of cache drive */
60 u64 BlockNo; /* block number */
61 u32 BlockCnt; /* block count */
62 u64 DestAddr; /* dest. addr. (if s/g: -1) */
63 u32 sg_canz; /* s/g element count */
64 gdth_sg64_str sg_lst[GDTH_MAXSG]; /* s/g list */
65 } __attribute__((packed)) cache64; /* cache service cmd. str. */
66 struct {
67 u16 param_size; /* size of p_param buffer */
68 u32 subfunc; /* IOCTL function */
69 u32 channel; /* device */
70 u64 p_param; /* buffer */
71 } __attribute__((packed)) ioctl; /* IOCTL command structure */
72 struct {
73 u16 reserved;
74 union {
75 struct {
76 u32 msg_handle; /* message handle */
77 u64 msg_addr; /* message buffer address */
78 } __attribute__((packed)) msg;
79 u8 data[12]; /* buffer for rtc data, ... */
80 } su;
81 } __attribute__((packed)) screen; /* screen service cmd. str. */
82 struct {
83 u16 reserved;
84 u32 direction; /* data direction */
85 u32 mdisc_time; /* disc. time (0: no timeout)*/
86 u32 mcon_time; /* connect time(0: no to.) */
87 u32 sdata; /* dest. addr. (if s/g: -1) */
88 u32 sdlen; /* data length (bytes) */
89 u32 clen; /* SCSI cmd. length(6,10,12) */
90 u8 cmd[12]; /* SCSI command */
91 u8 target; /* target ID */
92 u8 lun; /* LUN */
93 u8 bus; /* SCSI bus number */
94 u8 priority; /* only 0 used */
95 u32 sense_len; /* sense data length */
96 u32 sense_data; /* sense data addr. */
97 u32 link_p; /* linked cmds (not supp.) */
98 u32 sg_ranz; /* s/g element count */
99 gdth_sg_str sg_lst[GDTH_MAXSG]; /* s/g list */
100 } __attribute__((packed)) raw; /* raw service cmd. struct. */
101 struct {
102 u16 reserved;
103 u32 direction; /* data direction */
104 u32 mdisc_time; /* disc. time (0: no timeout)*/
105 u32 mcon_time; /* connect time(0: no to.) */
106 u64 sdata; /* dest. addr. (if s/g: -1) */
107 u32 sdlen; /* data length (bytes) */
108 u32 clen; /* SCSI cmd. length(6,..,16) */
109 u8 cmd[16]; /* SCSI command */
110 u8 target; /* target ID */
111 u8 lun; /* LUN */
112 u8 bus; /* SCSI bus number */
113 u8 priority; /* only 0 used */
114 u32 sense_len; /* sense data length */
115 u64 sense_data; /* sense data addr. */
116 u32 sg_ranz; /* s/g element count */
117 gdth_sg64_str sg_lst[GDTH_MAXSG]; /* s/g list */
118 } __attribute__((packed)) raw64; /* raw service cmd. struct. */
119 } u;
120 /* additional variables */
121 u8 Service; /* controller service */
122 u8 reserved;
123 u16 Status; /* command result */
124 u32 Info; /* additional information */
125 void *RequestBuffer; /* request buffer */
126} __attribute__((packed)) gdth_cmd_str;
127
128/* controller event structure */
129#define ES_ASYNC 1
130#define ES_DRIVER 2
131#define ES_TEST 3
132#define ES_SYNC 4
133typedef struct {
134 u16 size; /* size of structure */
135 union {
136 char stream[16];
137 struct {
138 u16 ionode;
139 u16 service;
140 u32 index;
141 } __attribute__((packed)) driver;
142 struct {
143 u16 ionode;
144 u16 service;
145 u16 status;
146 u32 info;
147 u8 scsi_coord[3];
148 } __attribute__((packed)) async;
149 struct {
150 u16 ionode;
151 u16 service;
152 u16 status;
153 u32 info;
154 u16 hostdrive;
155 u8 scsi_coord[3];
156 u8 sense_key;
157 } __attribute__((packed)) sync;
158 struct {
159 u32 l1, l2, l3, l4;
160 } __attribute__((packed)) test;
161 } eu;
162 u32 severity;
163 u8 event_string[256];
164} __attribute__((packed)) gdth_evt_data;
165
166typedef struct {
167 u32 first_stamp;
168 u32 last_stamp;
169 u16 same_count;
170 u16 event_source;
171 u16 event_idx;
172 u8 application;
173 u8 reserved;
174 gdth_evt_data event_data;
175} __attribute__((packed)) gdth_evt_str;
176
177/* GDTIOCTL_GENERAL */
178typedef struct {
179 u16 ionode; /* controller number */
180 u16 timeout; /* timeout */
181 u32 info; /* error info */
182 u16 status; /* status */
183 unsigned long data_len; /* data buffer size */
184 unsigned long sense_len; /* sense buffer size */
185 gdth_cmd_str command; /* command */
186} gdth_ioctl_general;
187
188/* GDTIOCTL_LOCKDRV */
189typedef struct {
190 u16 ionode; /* controller number */
191 u8 lock; /* lock/unlock */
192 u8 drive_cnt; /* drive count */
193 u16 drives[MAX_HDRIVES]; /* drives */
194} gdth_ioctl_lockdrv;
195
196/* GDTIOCTL_LOCKCHN */
197typedef struct {
198 u16 ionode; /* controller number */
199 u8 lock; /* lock/unlock */
200 u8 channel; /* channel */
201} gdth_ioctl_lockchn;
202
203/* GDTIOCTL_OSVERS */
204typedef struct {
205 u8 version; /* OS version */
206 u8 subversion; /* OS subversion */
207 u16 revision; /* revision */
208} gdth_ioctl_osvers;
209
210/* GDTIOCTL_CTRTYPE */
211typedef struct {
212 u16 ionode; /* controller number */
213 u8 type; /* controller type */
214 u16 info; /* slot etc. */
215 u16 oem_id; /* OEM ID */
216 u16 bios_ver; /* not used */
217 u16 access; /* not used */
218 u16 ext_type; /* extended type */
219 u16 device_id; /* device ID */
220 u16 sub_device_id; /* sub device ID */
221} gdth_ioctl_ctrtype;
222
223/* GDTIOCTL_EVENT */
224typedef struct {
225 u16 ionode;
226 int erase; /* erase event? */
227 int handle; /* event handle */
228 gdth_evt_str event;
229} gdth_ioctl_event;
230
231/* GDTIOCTL_RESCAN/GDTIOCTL_HDRLIST */
232typedef struct {
233 u16 ionode; /* controller number */
234 u8 flag; /* add/remove */
235 u16 hdr_no; /* drive no. */
236 struct {
237 u8 bus; /* SCSI bus */
238 u8 target; /* target ID */
239 u8 lun; /* LUN */
240 u8 cluster_type; /* cluster properties */
241 } hdr_list[MAX_HDRIVES]; /* index is host drive number */
242} gdth_ioctl_rescan;
243
244/* GDTIOCTL_RESET_BUS/GDTIOCTL_RESET_DRV */
245typedef struct {
246 u16 ionode; /* controller number */
247 u16 number; /* bus/host drive number */
248 u16 status; /* status */
249} gdth_ioctl_reset;
250
251#endif