Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | #ifndef _SCSI_PRIV_H |
3 | #define _SCSI_PRIV_H | |
4 | ||
1da177e4 | 5 | #include <linux/device.h> |
2955b47d | 6 | #include <linux/async.h> |
5d9fb5cc | 7 | #include <scsi/scsi_device.h> |
020b0f0a | 8 | #include <linux/sbitmap.h> |
1da177e4 LT |
9 | |
10 | struct request_queue; | |
242f9dcb | 11 | struct request; |
1da177e4 LT |
12 | struct scsi_cmnd; |
13 | struct scsi_device; | |
bc4f2401 | 14 | struct scsi_target; |
1da177e4 | 15 | struct scsi_host_template; |
1da177e4 | 16 | struct Scsi_Host; |
84314fd4 | 17 | struct scsi_nl_hdr; |
1da177e4 | 18 | |
2a242d59 | 19 | #define SCSI_CMD_RETRIES_NO_LIMIT -1 |
1da177e4 | 20 | |
1da177e4 LT |
21 | /* |
22 | * Scsi Error Handler Flags | |
23 | */ | |
e494f6a7 | 24 | #define SCSI_EH_ABORT_SCHEDULED 0x0002 /* Abort has been scheduled */ |
1da177e4 LT |
25 | |
26 | #define SCSI_SENSE_VALID(scmd) \ | |
27 | (((scmd)->sense_buffer[0] & 0x70) == 0x70) | |
28 | ||
1da177e4 LT |
29 | /* hosts.c */ |
30 | extern int scsi_init_hosts(void); | |
31 | extern void scsi_exit_hosts(void); | |
32 | ||
33 | /* scsi.c */ | |
0a6ac4ee | 34 | int scsi_init_sense_cache(struct Scsi_Host *shost); |
e9c787e6 | 35 | void scsi_init_command(struct scsi_device *dev, struct scsi_cmnd *cmd); |
1da177e4 LT |
36 | #ifdef CONFIG_SCSI_LOGGING |
37 | void scsi_log_send(struct scsi_cmnd *cmd); | |
38 | void scsi_log_completion(struct scsi_cmnd *cmd, int disposition); | |
39 | #else | |
40 | static inline void scsi_log_send(struct scsi_cmnd *cmd) | |
41 | { }; | |
42 | static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition) | |
43 | { }; | |
44 | #endif | |
45 | ||
46 | /* scsi_devinfo.c */ | |
598fa4b7 JB |
47 | |
48 | /* list of keys for the lists */ | |
4b1d8e78 | 49 | enum scsi_devinfo_key { |
598fa4b7 | 50 | SCSI_DEVINFO_GLOBAL = 0, |
a9e0edb6 | 51 | SCSI_DEVINFO_SPI, |
598fa4b7 JB |
52 | }; |
53 | ||
5ebde469 HR |
54 | extern blist_flags_t scsi_get_device_flags(struct scsi_device *sdev, |
55 | const unsigned char *vendor, | |
56 | const unsigned char *model); | |
57 | extern blist_flags_t scsi_get_device_flags_keyed(struct scsi_device *sdev, | |
58 | const unsigned char *vendor, | |
59 | const unsigned char *model, | |
4b1d8e78 | 60 | enum scsi_devinfo_key key); |
598fa4b7 JB |
61 | extern int scsi_dev_info_list_add_keyed(int compatible, char *vendor, |
62 | char *model, char *strflags, | |
4b1d8e78 BVA |
63 | blist_flags_t flags, |
64 | enum scsi_devinfo_key key); | |
65 | extern int scsi_dev_info_list_del_keyed(char *vendor, char *model, | |
66 | enum scsi_devinfo_key key); | |
67 | extern int scsi_dev_info_add_list(enum scsi_devinfo_key key, const char *name); | |
68 | extern int scsi_dev_info_remove_list(enum scsi_devinfo_key key); | |
598fa4b7 | 69 | |
1da177e4 LT |
70 | extern int __init scsi_init_devinfo(void); |
71 | extern void scsi_exit_devinfo(void); | |
72 | ||
73 | /* scsi_error.c */ | |
e494f6a7 | 74 | extern void scmd_eh_abort_handler(struct work_struct *work); |
242f9dcb | 75 | extern enum blk_eh_timer_return scsi_times_out(struct request *req); |
1da177e4 | 76 | extern int scsi_error_handler(void *host); |
b8e162f9 | 77 | extern enum scsi_disposition scsi_decide_disposition(struct scsi_cmnd *cmd); |
1da177e4 | 78 | extern void scsi_eh_wakeup(struct Scsi_Host *shost); |
a0658632 | 79 | extern void scsi_eh_scmd_add(struct scsi_cmnd *); |
dca84e46 DW |
80 | void scsi_eh_ready_devs(struct Scsi_Host *shost, |
81 | struct list_head *work_q, | |
82 | struct list_head *done_q); | |
83 | int scsi_eh_get_sense(struct list_head *work_q, | |
84 | struct list_head *done_q); | |
4a27446f | 85 | int scsi_noretry_cmd(struct scsi_cmnd *scmd); |
1da177e4 LT |
86 | |
87 | /* scsi_lib.c */ | |
88 | extern int scsi_maybe_unblock_host(struct scsi_device *sdev); | |
6eb045e0 | 89 | extern void scsi_device_unbusy(struct scsi_device *sdev, struct scsi_cmnd *cmd); |
84feb166 | 90 | extern void scsi_queue_insert(struct scsi_cmnd *cmd, int reason); |
7b3d9545 | 91 | extern void scsi_io_completion(struct scsi_cmnd *, unsigned int); |
1da177e4 | 92 | extern void scsi_run_host_queues(struct Scsi_Host *shost); |
d67e8b38 | 93 | extern void scsi_requeue_run_queue(struct work_struct *work); |
66483a4a | 94 | extern void scsi_start_queue(struct scsi_device *sdev); |
d285203c CH |
95 | extern int scsi_mq_setup_tags(struct Scsi_Host *shost); |
96 | extern void scsi_mq_destroy_tags(struct Scsi_Host *shost); | |
1da177e4 | 97 | extern void scsi_exit_queue(void); |
d67e8b38 | 98 | extern void scsi_evt_thread(struct work_struct *work); |
1da177e4 LT |
99 | |
100 | /* scsi_proc.c */ | |
101 | #ifdef CONFIG_SCSI_PROC_FS | |
102 | extern void scsi_proc_hostdir_add(struct scsi_host_template *); | |
103 | extern void scsi_proc_hostdir_rm(struct scsi_host_template *); | |
104 | extern void scsi_proc_host_add(struct Scsi_Host *); | |
105 | extern void scsi_proc_host_rm(struct Scsi_Host *); | |
106 | extern int scsi_init_procfs(void); | |
107 | extern void scsi_exit_procfs(void); | |
108 | #else | |
109 | # define scsi_proc_hostdir_add(sht) do { } while (0) | |
110 | # define scsi_proc_hostdir_rm(sht) do { } while (0) | |
111 | # define scsi_proc_host_add(shost) do { } while (0) | |
112 | # define scsi_proc_host_rm(shost) do { } while (0) | |
113 | # define scsi_init_procfs() (0) | |
114 | # define scsi_exit_procfs() do { } while (0) | |
115 | #endif /* CONFIG_PROC_FS */ | |
116 | ||
117 | /* scsi_scan.c */ | |
3c31b52f | 118 | extern char scsi_scan_type[]; |
fea6d607 | 119 | extern int scsi_complete_async_scans(void); |
1da177e4 | 120 | extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int, |
1d645088 | 121 | unsigned int, u64, enum scsi_scan_mode); |
1da177e4 LT |
122 | extern void scsi_forget_host(struct Scsi_Host *); |
123 | extern void scsi_rescan_device(struct device *); | |
124 | ||
125 | /* scsi_sysctl.c */ | |
126 | #ifdef CONFIG_SYSCTL | |
127 | extern int scsi_init_sysctl(void); | |
128 | extern void scsi_exit_sysctl(void); | |
129 | #else | |
130 | # define scsi_init_sysctl() (0) | |
131 | # define scsi_exit_sysctl() do { } while (0) | |
132 | #endif /* CONFIG_SYSCTL */ | |
133 | ||
134 | /* scsi_sysfs.c */ | |
1da177e4 LT |
135 | extern int scsi_sysfs_add_sdev(struct scsi_device *); |
136 | extern int scsi_sysfs_add_host(struct Scsi_Host *); | |
137 | extern int scsi_sysfs_register(void); | |
138 | extern void scsi_sysfs_unregister(void); | |
139 | extern void scsi_sysfs_device_initialize(struct scsi_device *); | |
140 | extern int scsi_sysfs_target_initialize(struct scsi_device *); | |
141 | extern struct scsi_transport_template blank_transport_template; | |
903f4fed | 142 | extern void __scsi_remove_device(struct scsi_device *); |
1da177e4 | 143 | |
1da177e4 | 144 | extern struct bus_type scsi_bus_type; |
a4dbd674 | 145 | extern const struct attribute_group *scsi_sysfs_shost_attr_groups[]; |
1da177e4 | 146 | |
84314fd4 JS |
147 | /* scsi_netlink.c */ |
148 | #ifdef CONFIG_SCSI_NETLINK | |
149 | extern void scsi_netlink_init(void); | |
150 | extern void scsi_netlink_exit(void); | |
151 | extern struct sock *scsi_nl_sock; | |
152 | #else | |
153 | static inline void scsi_netlink_init(void) {} | |
154 | static inline void scsi_netlink_exit(void) {} | |
155 | #endif | |
156 | ||
db5bd1e0 | 157 | /* scsi_pm.c */ |
aa338601 | 158 | #ifdef CONFIG_PM |
db5bd1e0 | 159 | extern const struct dev_pm_ops scsi_bus_pm_ops; |
4f7ad521 | 160 | |
bc4f2401 AS |
161 | extern void scsi_autopm_get_target(struct scsi_target *); |
162 | extern void scsi_autopm_put_target(struct scsi_target *); | |
163 | extern int scsi_autopm_get_host(struct Scsi_Host *); | |
164 | extern void scsi_autopm_put_host(struct Scsi_Host *); | |
165 | #else | |
166 | static inline void scsi_autopm_get_target(struct scsi_target *t) {} | |
167 | static inline void scsi_autopm_put_target(struct scsi_target *t) {} | |
168 | static inline int scsi_autopm_get_host(struct Scsi_Host *h) { return 0; } | |
169 | static inline void scsi_autopm_put_host(struct Scsi_Host *h) {} | |
4f7ad521 | 170 | #endif /* CONFIG_PM */ |
db5bd1e0 | 171 | |
3c31b52f | 172 | extern struct async_domain scsi_sd_pm_domain; |
a7a20d10 | 173 | |
086b91d0 CH |
174 | /* scsi_dh.c */ |
175 | #ifdef CONFIG_SCSI_DH | |
2930f817 | 176 | void scsi_dh_add_device(struct scsi_device *sdev); |
23695e41 | 177 | void scsi_dh_release_device(struct scsi_device *sdev); |
086b91d0 | 178 | #else |
2930f817 | 179 | static inline void scsi_dh_add_device(struct scsi_device *sdev) { } |
23695e41 | 180 | static inline void scsi_dh_release_device(struct scsi_device *sdev) { } |
086b91d0 CH |
181 | #endif |
182 | ||
78011042 CH |
183 | #ifdef CONFIG_BLK_DEV_BSG |
184 | int scsi_bsg_register_queue(struct request_queue *q, struct device *parent); | |
185 | #else | |
186 | static inline int scsi_bsg_register_queue(struct request_queue *q, | |
187 | struct device *parent) | |
188 | { | |
189 | return 0; | |
190 | } | |
191 | #endif | |
192 | ||
020b0f0a ML |
193 | extern int scsi_device_max_queue_depth(struct scsi_device *sdev); |
194 | ||
1da177e4 LT |
195 | /* |
196 | * internal scsi timeout functions: for use by mid-layer and transport | |
197 | * classes. | |
198 | */ | |
199 | ||
1c9e16e4 | 200 | #define SCSI_DEVICE_BLOCK_MAX_TIMEOUT 600 /* units in seconds */ |
1da177e4 LT |
201 | |
202 | #endif /* _SCSI_PRIV_H */ |