target: split parsing of SPC commands into a separate helper
[deliverable/linux.git] / include / target / target_core_backend.h
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1#ifndef TARGET_CORE_BACKEND_H
2#define TARGET_CORE_BACKEND_H
3
4#define TRANSPORT_PLUGIN_PHBA_PDEV 1
5#define TRANSPORT_PLUGIN_VHBA_PDEV 2
6#define TRANSPORT_PLUGIN_VHBA_VDEV 3
7
8struct se_subsystem_api {
9 struct list_head sub_api_list;
10
11 char name[16];
12 struct module *owner;
13
14 u8 transport_type;
15
16 unsigned int fua_write_emulated : 1;
17 unsigned int write_cache_emulated : 1;
18
19 int (*attach_hba)(struct se_hba *, u32);
20 void (*detach_hba)(struct se_hba *);
21 int (*pmode_enable_hba)(struct se_hba *, unsigned long);
22 void *(*allocate_virtdevice)(struct se_hba *, const char *);
23 struct se_device *(*create_virtdevice)(struct se_hba *,
24 struct se_subsystem_dev *, void *);
25 void (*free_device)(void *);
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26 int (*transport_complete)(struct se_cmd *cmd, struct scatterlist *);
27 int (*execute_cmd)(struct se_cmd *, struct scatterlist *, u32,
28 enum dma_data_direction);
c4795fb2 29 int (*do_discard)(struct se_device *, sector_t, u32);
6bb35e00 30 void (*do_sync_cache)(struct se_cmd *);
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31 ssize_t (*check_configfs_dev_params)(struct se_hba *,
32 struct se_subsystem_dev *);
33 ssize_t (*set_configfs_dev_params)(struct se_hba *,
34 struct se_subsystem_dev *, const char *, ssize_t);
35 ssize_t (*show_configfs_dev_params)(struct se_hba *,
36 struct se_subsystem_dev *, char *);
37 u32 (*get_device_rev)(struct se_device *);
38 u32 (*get_device_type)(struct se_device *);
39 sector_t (*get_blocks)(struct se_device *);
5787cacd 40 unsigned char *(*get_sense_buffer)(struct se_cmd *);
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41};
42
43int transport_subsystem_register(struct se_subsystem_api *);
44void transport_subsystem_release(struct se_subsystem_api *);
45
46struct se_device *transport_add_device_to_core_hba(struct se_hba *,
47 struct se_subsystem_api *, struct se_subsystem_dev *, u32,
48 void *, struct se_dev_limits *, const char *, const char *);
49
6bb35e00 50void target_complete_cmd(struct se_cmd *, u8);
c4795fb2 51
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52void transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *);
53int transport_set_vpd_assoc(struct t10_vpd *, unsigned char *);
54int transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *);
55int transport_set_vpd_ident(struct t10_vpd *, unsigned char *);
56
57/* core helpers also used by command snooping in pscsi */
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58void *transport_kmap_data_sg(struct se_cmd *);
59void transport_kunmap_data_sg(struct se_cmd *);
c4795fb2 60
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61void array_free(void *array, int n);
62
c4795fb2 63#endif /* TARGET_CORE_BACKEND_H */
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