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Commit | Line | Data |
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c4795fb2 CH |
1 | #ifndef TARGET_CORE_BACKEND_H |
2 | #define TARGET_CORE_BACKEND_H | |
3 | ||
8dcf07be BVA |
4 | #include <linux/types.h> |
5 | #include <target/target_core_base.h> | |
6 | ||
a3541703 | 7 | #define TRANSPORT_FLAG_PASSTHROUGH 1 |
c4795fb2 | 8 | |
8dcf07be BVA |
9 | struct request_queue; |
10 | struct scatterlist; | |
11 | ||
0a06d430 | 12 | struct target_backend_ops { |
c4795fb2 | 13 | char name[16]; |
0fd97ccf CH |
14 | char inquiry_prod[16]; |
15 | char inquiry_rev[4]; | |
c4795fb2 CH |
16 | struct module *owner; |
17 | ||
a3541703 | 18 | u8 transport_flags; |
c4795fb2 | 19 | |
c4795fb2 CH |
20 | int (*attach_hba)(struct se_hba *, u32); |
21 | void (*detach_hba)(struct se_hba *); | |
22 | int (*pmode_enable_hba)(struct se_hba *, unsigned long); | |
0fd97ccf CH |
23 | |
24 | struct se_device *(*alloc_device)(struct se_hba *, const char *); | |
25 | int (*configure_device)(struct se_device *); | |
26 | void (*free_device)(struct se_device *device); | |
27 | ||
28 | ssize_t (*set_configfs_dev_params)(struct se_device *, | |
29 | const char *, ssize_t); | |
30 | ssize_t (*show_configfs_dev_params)(struct se_device *, char *); | |
31 | ||
d5829eac PB |
32 | void (*transport_complete)(struct se_cmd *cmd, |
33 | struct scatterlist *, | |
34 | unsigned char *); | |
d6e0175c | 35 | |
de103c93 | 36 | sense_reason_t (*parse_cdb)(struct se_cmd *cmd); |
c4795fb2 CH |
37 | u32 (*get_device_type)(struct se_device *); |
38 | sector_t (*get_blocks)(struct se_device *); | |
7f7caf6a AG |
39 | sector_t (*get_alignment_offset_lbas)(struct se_device *); |
40 | /* lbppbe = logical blocks per physical block exponent. see SBC-3 */ | |
41 | unsigned int (*get_lbppbe)(struct se_device *); | |
42 | unsigned int (*get_io_min)(struct se_device *); | |
43 | unsigned int (*get_io_opt)(struct se_device *); | |
5787cacd | 44 | unsigned char *(*get_sense_buffer)(struct se_cmd *); |
d0c8b259 | 45 | bool (*get_write_cache)(struct se_device *); |
ce65e5b9 NB |
46 | int (*init_prot)(struct se_device *); |
47 | int (*format_prot)(struct se_device *); | |
48 | void (*free_prot)(struct se_device *); | |
73112edc | 49 | |
0a06d430 | 50 | struct configfs_attribute **tb_dev_attrib_attrs; |
c4795fb2 CH |
51 | }; |
52 | ||
9e999a6c | 53 | struct sbc_ops { |
a82a9538 NB |
54 | sense_reason_t (*execute_rw)(struct se_cmd *cmd, struct scatterlist *, |
55 | u32, enum dma_data_direction); | |
de103c93 CH |
56 | sense_reason_t (*execute_sync_cache)(struct se_cmd *cmd); |
57 | sense_reason_t (*execute_write_same)(struct se_cmd *cmd); | |
62e46942 CH |
58 | sense_reason_t (*execute_unmap)(struct se_cmd *cmd, |
59 | sector_t lba, sector_t nolb); | |
0c2ad7d1 CH |
60 | }; |
61 | ||
0a06d430 CH |
62 | int transport_backend_register(const struct target_backend_ops *); |
63 | void target_backend_unregister(const struct target_backend_ops *); | |
c4795fb2 | 64 | |
6bb35e00 | 65 | void target_complete_cmd(struct se_cmd *, u8); |
2426bd45 | 66 | void target_complete_cmd_with_length(struct se_cmd *, u8, int); |
c4795fb2 | 67 | |
de103c93 CH |
68 | sense_reason_t spc_parse_cdb(struct se_cmd *cmd, unsigned int *size); |
69 | sense_reason_t spc_emulate_report_luns(struct se_cmd *cmd); | |
0dfa1c5d HR |
70 | sense_reason_t spc_emulate_inquiry_std(struct se_cmd *, unsigned char *); |
71 | sense_reason_t spc_emulate_evpd_83(struct se_cmd *, unsigned char *); | |
d6e0175c | 72 | |
de103c93 | 73 | sense_reason_t sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops); |
6f23ac8a CH |
74 | u32 sbc_get_device_rev(struct se_device *dev); |
75 | u32 sbc_get_device_type(struct se_device *dev); | |
972b29c8 | 76 | sector_t sbc_get_write_same_sectors(struct se_cmd *cmd); |
66a3d5bc | 77 | void sbc_dif_generate(struct se_cmd *); |
f75b6fae | 78 | sense_reason_t sbc_dif_verify(struct se_cmd *, sector_t, unsigned int, |
41861fa8 | 79 | unsigned int, struct scatterlist *, int); |
f75b6fae SG |
80 | void sbc_dif_copy_prot(struct se_cmd *, unsigned int, bool, |
81 | struct scatterlist *, int); | |
c4795fb2 CH |
82 | void transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *); |
83 | int transport_set_vpd_assoc(struct t10_vpd *, unsigned char *); | |
84 | int transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *); | |
85 | int transport_set_vpd_ident(struct t10_vpd *, unsigned char *); | |
86 | ||
5873c4d1 CH |
87 | extern struct configfs_attribute *sbc_attrib_attrs[]; |
88 | extern struct configfs_attribute *passthrough_attrib_attrs[]; | |
89 | ||
c4795fb2 | 90 | /* core helpers also used by command snooping in pscsi */ |
4949314c AG |
91 | void *transport_kmap_data_sg(struct se_cmd *); |
92 | void transport_kunmap_data_sg(struct se_cmd *); | |
c5ff8d6b | 93 | /* core helpers also used by xcopy during internal command setup */ |
c5ff8d6b NB |
94 | sense_reason_t transport_generic_map_mem_to_cmd(struct se_cmd *, |
95 | struct scatterlist *, u32, struct scatterlist *, u32); | |
c4795fb2 | 96 | |
29a05dee | 97 | bool target_lun_is_rdonly(struct se_cmd *); |
7bfea53b AG |
98 | sense_reason_t passthrough_parse_cdb(struct se_cmd *cmd, |
99 | sense_reason_t (*exec_cmd)(struct se_cmd *cmd)); | |
d30cd123 | 100 | |
4e4937e8 | 101 | bool target_sense_desc_format(struct se_device *dev); |
8a9ebe71 MC |
102 | sector_t target_to_linux_sector(struct se_device *dev, sector_t lb); |
103 | bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib, | |
ea263c7f | 104 | struct request_queue *q); |
4e4937e8 | 105 | |
c4795fb2 | 106 | #endif /* TARGET_CORE_BACKEND_H */ |