Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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 int (*attach_hba)(struct se_hba *, u32);
17 void (*detach_hba)(struct se_hba *);
18 int (*pmode_enable_hba)(struct se_hba *, unsigned long);
19 void *(*allocate_virtdevice)(struct se_hba *, const char *);
20 struct se_device *(*create_virtdevice)(struct se_hba *,
21 struct se_subsystem_dev *, void *);
22 void (*free_device)(void *);
23 void (*transport_complete)(struct se_cmd *cmd,
24 struct scatterlist *,
25 unsigned char *);
26
27 int (*parse_cdb)(struct se_cmd *cmd);
28 ssize_t (*check_configfs_dev_params)(struct se_hba *,
29 struct se_subsystem_dev *);
30 ssize_t (*set_configfs_dev_params)(struct se_hba *,
31 struct se_subsystem_dev *, const char *, ssize_t);
32 ssize_t (*show_configfs_dev_params)(struct se_hba *,
33 struct se_subsystem_dev *, char *);
34 u32 (*get_device_rev)(struct se_device *);
35 u32 (*get_device_type)(struct se_device *);
36 sector_t (*get_blocks)(struct se_device *);
37 unsigned char *(*get_sense_buffer)(struct se_cmd *);
38};
39
40struct spc_ops {
41 int (*execute_rw)(struct se_cmd *cmd);
42 int (*execute_sync_cache)(struct se_cmd *cmd);
43 int (*execute_write_same)(struct se_cmd *cmd);
44 int (*execute_unmap)(struct se_cmd *cmd);
45};
46
47int transport_subsystem_register(struct se_subsystem_api *);
48void transport_subsystem_release(struct se_subsystem_api *);
49
50struct se_device *transport_add_device_to_core_hba(struct se_hba *,
51 struct se_subsystem_api *, struct se_subsystem_dev *, u32,
52 void *, struct se_dev_limits *, const char *, const char *);
53
54void target_complete_cmd(struct se_cmd *, u8);
55
56int sbc_parse_cdb(struct se_cmd *cmd, struct spc_ops *ops);
57int spc_parse_cdb(struct se_cmd *cmd, unsigned int *size);
58int spc_get_write_same_sectors(struct se_cmd *cmd);
59
60void transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *);
61int transport_set_vpd_assoc(struct t10_vpd *, unsigned char *);
62int transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *);
63int transport_set_vpd_ident(struct t10_vpd *, unsigned char *);
64
65/* core helpers also used by command snooping in pscsi */
66void *transport_kmap_data_sg(struct se_cmd *);
67void transport_kunmap_data_sg(struct se_cmd *);
68
69void array_free(void *array, int n);
70
71#endif /* TARGET_CORE_BACKEND_H */