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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 | ||
530c6891 MC |
7 | #define TRANSPORT_FLAG_PASSTHROUGH 0x1 |
8 | /* | |
9 | * ALUA commands, state checks and setup operations are handled by the | |
10 | * backend module. | |
11 | */ | |
12 | #define TRANSPORT_FLAG_PASSTHROUGH_ALUA 0x2 | |
c4795fb2 | 13 | |
8dcf07be BVA |
14 | struct request_queue; |
15 | struct scatterlist; | |
16 | ||
0a06d430 | 17 | struct target_backend_ops { |
c4795fb2 | 18 | char name[16]; |
0fd97ccf CH |
19 | char inquiry_prod[16]; |
20 | char inquiry_rev[4]; | |
c4795fb2 CH |
21 | struct module *owner; |
22 | ||
a3541703 | 23 | u8 transport_flags; |
c4795fb2 | 24 | |
c4795fb2 CH |
25 | int (*attach_hba)(struct se_hba *, u32); |
26 | void (*detach_hba)(struct se_hba *); | |
27 | int (*pmode_enable_hba)(struct se_hba *, unsigned long); | |
0fd97ccf CH |
28 | |
29 | struct se_device *(*alloc_device)(struct se_hba *, const char *); | |
30 | int (*configure_device)(struct se_device *); | |
31 | void (*free_device)(struct se_device *device); | |
32 | ||
33 | ssize_t (*set_configfs_dev_params)(struct se_device *, | |
34 | const char *, ssize_t); | |
35 | ssize_t (*show_configfs_dev_params)(struct se_device *, char *); | |
36 | ||
d5829eac PB |
37 | void (*transport_complete)(struct se_cmd *cmd, |
38 | struct scatterlist *, | |
39 | unsigned char *); | |
d6e0175c | 40 | |
de103c93 | 41 | sense_reason_t (*parse_cdb)(struct se_cmd *cmd); |
c4795fb2 CH |
42 | u32 (*get_device_type)(struct se_device *); |
43 | sector_t (*get_blocks)(struct se_device *); | |
7f7caf6a AG |
44 | sector_t (*get_alignment_offset_lbas)(struct se_device *); |
45 | /* lbppbe = logical blocks per physical block exponent. see SBC-3 */ | |
46 | unsigned int (*get_lbppbe)(struct se_device *); | |
47 | unsigned int (*get_io_min)(struct se_device *); | |
48 | unsigned int (*get_io_opt)(struct se_device *); | |
5787cacd | 49 | unsigned char *(*get_sense_buffer)(struct se_cmd *); |
d0c8b259 | 50 | bool (*get_write_cache)(struct se_device *); |
ce65e5b9 NB |
51 | int (*init_prot)(struct se_device *); |
52 | int (*format_prot)(struct se_device *); | |
53 | void (*free_prot)(struct se_device *); | |
73112edc | 54 | |
0a06d430 | 55 | struct configfs_attribute **tb_dev_attrib_attrs; |
c4795fb2 CH |
56 | }; |
57 | ||
9e999a6c | 58 | struct sbc_ops { |
a82a9538 NB |
59 | sense_reason_t (*execute_rw)(struct se_cmd *cmd, struct scatterlist *, |
60 | u32, enum dma_data_direction); | |
de103c93 CH |
61 | sense_reason_t (*execute_sync_cache)(struct se_cmd *cmd); |
62 | sense_reason_t (*execute_write_same)(struct se_cmd *cmd); | |
62e46942 CH |
63 | sense_reason_t (*execute_unmap)(struct se_cmd *cmd, |
64 | sector_t lba, sector_t nolb); | |
0c2ad7d1 CH |
65 | }; |
66 | ||
0a06d430 CH |
67 | int transport_backend_register(const struct target_backend_ops *); |
68 | void target_backend_unregister(const struct target_backend_ops *); | |
c4795fb2 | 69 | |
6bb35e00 | 70 | void target_complete_cmd(struct se_cmd *, u8); |
2426bd45 | 71 | void target_complete_cmd_with_length(struct se_cmd *, u8, int); |
c4795fb2 | 72 | |
de103c93 CH |
73 | sense_reason_t spc_parse_cdb(struct se_cmd *cmd, unsigned int *size); |
74 | sense_reason_t spc_emulate_report_luns(struct se_cmd *cmd); | |
0dfa1c5d HR |
75 | sense_reason_t spc_emulate_inquiry_std(struct se_cmd *, unsigned char *); |
76 | sense_reason_t spc_emulate_evpd_83(struct se_cmd *, unsigned char *); | |
d6e0175c | 77 | |
de103c93 | 78 | sense_reason_t sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops); |
6f23ac8a CH |
79 | u32 sbc_get_device_rev(struct se_device *dev); |
80 | u32 sbc_get_device_type(struct se_device *dev); | |
972b29c8 | 81 | sector_t sbc_get_write_same_sectors(struct se_cmd *cmd); |
66a3d5bc | 82 | void sbc_dif_generate(struct se_cmd *); |
f75b6fae | 83 | sense_reason_t sbc_dif_verify(struct se_cmd *, sector_t, unsigned int, |
41861fa8 | 84 | unsigned int, struct scatterlist *, int); |
f75b6fae SG |
85 | void sbc_dif_copy_prot(struct se_cmd *, unsigned int, bool, |
86 | struct scatterlist *, int); | |
c4795fb2 CH |
87 | void transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *); |
88 | int transport_set_vpd_assoc(struct t10_vpd *, unsigned char *); | |
89 | int transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *); | |
90 | int transport_set_vpd_ident(struct t10_vpd *, unsigned char *); | |
91 | ||
5873c4d1 CH |
92 | extern struct configfs_attribute *sbc_attrib_attrs[]; |
93 | extern struct configfs_attribute *passthrough_attrib_attrs[]; | |
94 | ||
c4795fb2 | 95 | /* core helpers also used by command snooping in pscsi */ |
4949314c AG |
96 | void *transport_kmap_data_sg(struct se_cmd *); |
97 | void transport_kunmap_data_sg(struct se_cmd *); | |
c5ff8d6b | 98 | /* core helpers also used by xcopy during internal command setup */ |
c5ff8d6b NB |
99 | sense_reason_t transport_generic_map_mem_to_cmd(struct se_cmd *, |
100 | struct scatterlist *, u32, struct scatterlist *, u32); | |
c4795fb2 | 101 | |
29a05dee | 102 | bool target_lun_is_rdonly(struct se_cmd *); |
7bfea53b AG |
103 | sense_reason_t passthrough_parse_cdb(struct se_cmd *cmd, |
104 | sense_reason_t (*exec_cmd)(struct se_cmd *cmd)); | |
d30cd123 | 105 | |
4e4937e8 | 106 | bool target_sense_desc_format(struct se_device *dev); |
8a9ebe71 MC |
107 | sector_t target_to_linux_sector(struct se_device *dev, sector_t lb); |
108 | bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib, | |
ea263c7f | 109 | struct request_queue *q); |
4e4937e8 | 110 | |
c4795fb2 | 111 | #endif /* TARGET_CORE_BACKEND_H */ |