Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 1 | #ifndef TARGET_CORE_BACKEND_H |
| 2 | #define TARGET_CORE_BACKEND_H |
| 3 | |
Andy Grover | a354170 | 2015-05-19 14:44:41 -0700 | [diff] [blame] | 4 | #define TRANSPORT_FLAG_PASSTHROUGH 1 |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 5 | |
Christoph Hellwig | 0a06d43 | 2015-05-10 18:14:56 +0200 | [diff] [blame] | 6 | struct target_backend_ops { |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 7 | char name[16]; |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 8 | char inquiry_prod[16]; |
| 9 | char inquiry_rev[4]; |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 10 | struct module *owner; |
| 11 | |
Andy Grover | a354170 | 2015-05-19 14:44:41 -0700 | [diff] [blame] | 12 | u8 transport_flags; |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 13 | |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 14 | int (*attach_hba)(struct se_hba *, u32); |
| 15 | void (*detach_hba)(struct se_hba *); |
| 16 | int (*pmode_enable_hba)(struct se_hba *, unsigned long); |
Christoph Hellwig | 0fd97cc | 2012-10-08 00:03:19 -0400 | [diff] [blame] | 17 | |
| 18 | struct se_device *(*alloc_device)(struct se_hba *, const char *); |
| 19 | int (*configure_device)(struct se_device *); |
| 20 | void (*free_device)(struct se_device *device); |
| 21 | |
| 22 | ssize_t (*set_configfs_dev_params)(struct se_device *, |
| 23 | const char *, ssize_t); |
| 24 | ssize_t (*show_configfs_dev_params)(struct se_device *, char *); |
| 25 | |
Paolo Bonzini | d5829ea | 2012-09-05 17:09:15 +0200 | [diff] [blame] | 26 | void (*transport_complete)(struct se_cmd *cmd, |
| 27 | struct scatterlist *, |
| 28 | unsigned char *); |
Christoph Hellwig | d6e0175 | 2012-05-20 11:59:14 -0400 | [diff] [blame] | 29 | |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 30 | sense_reason_t (*parse_cdb)(struct se_cmd *cmd); |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 31 | u32 (*get_device_type)(struct se_device *); |
| 32 | sector_t (*get_blocks)(struct se_device *); |
Andy Grover | 7f7caf6 | 2013-11-11 08:59:17 -0800 | [diff] [blame] | 33 | sector_t (*get_alignment_offset_lbas)(struct se_device *); |
| 34 | /* lbppbe = logical blocks per physical block exponent. see SBC-3 */ |
| 35 | unsigned int (*get_lbppbe)(struct se_device *); |
| 36 | unsigned int (*get_io_min)(struct se_device *); |
| 37 | unsigned int (*get_io_opt)(struct se_device *); |
Christoph Hellwig | 5787cac | 2012-04-24 00:25:06 -0400 | [diff] [blame] | 38 | unsigned char *(*get_sense_buffer)(struct se_cmd *); |
Nicholas Bellinger | d0c8b25 | 2013-01-29 22:10:06 -0800 | [diff] [blame] | 39 | bool (*get_write_cache)(struct se_device *); |
Nicholas Bellinger | ce65e5b | 2013-12-23 20:28:13 +0000 | [diff] [blame] | 40 | int (*init_prot)(struct se_device *); |
| 41 | int (*format_prot)(struct se_device *); |
| 42 | void (*free_prot)(struct se_device *); |
Nicholas Bellinger | 73112ed | 2014-11-27 13:59:20 -0800 | [diff] [blame] | 43 | |
Christoph Hellwig | 0a06d43 | 2015-05-10 18:14:56 +0200 | [diff] [blame] | 44 | struct configfs_attribute **tb_dev_attrib_attrs; |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 45 | }; |
| 46 | |
Christoph Hellwig | 9e999a6 | 2012-10-07 10:55:50 -0400 | [diff] [blame] | 47 | struct sbc_ops { |
Nicholas Bellinger | a82a953 | 2013-08-19 23:57:30 -0700 | [diff] [blame] | 48 | sense_reason_t (*execute_rw)(struct se_cmd *cmd, struct scatterlist *, |
| 49 | u32, enum dma_data_direction); |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 50 | sense_reason_t (*execute_sync_cache)(struct se_cmd *cmd); |
| 51 | sense_reason_t (*execute_write_same)(struct se_cmd *cmd); |
Christoph Hellwig | 62e4694 | 2015-06-19 15:10:59 +0200 | [diff] [blame] | 52 | sense_reason_t (*execute_unmap)(struct se_cmd *cmd, |
| 53 | sector_t lba, sector_t nolb); |
Christoph Hellwig | 0c2ad7d | 2012-06-17 18:40:52 -0400 | [diff] [blame] | 54 | }; |
| 55 | |
Christoph Hellwig | 0a06d43 | 2015-05-10 18:14:56 +0200 | [diff] [blame] | 56 | int transport_backend_register(const struct target_backend_ops *); |
| 57 | void target_backend_unregister(const struct target_backend_ops *); |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 58 | |
Christoph Hellwig | 6bb35e0 | 2012-04-23 11:35:33 -0400 | [diff] [blame] | 59 | void target_complete_cmd(struct se_cmd *, u8); |
Roland Dreier | 2426bd4 | 2014-06-10 11:07:47 -0700 | [diff] [blame] | 60 | void target_complete_cmd_with_length(struct se_cmd *, u8, int); |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 61 | |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 62 | sense_reason_t spc_parse_cdb(struct se_cmd *cmd, unsigned int *size); |
| 63 | sense_reason_t spc_emulate_report_luns(struct se_cmd *cmd); |
Hannes Reinecke | 0dfa1c5 | 2012-12-17 09:53:35 +0100 | [diff] [blame] | 64 | sense_reason_t spc_emulate_inquiry_std(struct se_cmd *, unsigned char *); |
| 65 | sense_reason_t spc_emulate_evpd_83(struct se_cmd *, unsigned char *); |
Christoph Hellwig | d6e0175 | 2012-05-20 11:59:14 -0400 | [diff] [blame] | 66 | |
Christoph Hellwig | de103c9 | 2012-11-06 12:24:09 -0800 | [diff] [blame] | 67 | sense_reason_t sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops); |
Christoph Hellwig | 6f23ac8 | 2012-10-07 10:55:53 -0400 | [diff] [blame] | 68 | u32 sbc_get_device_rev(struct se_device *dev); |
| 69 | u32 sbc_get_device_type(struct se_device *dev); |
Roland Dreier | 972b29c8 | 2013-02-22 09:52:57 -0800 | [diff] [blame] | 70 | sector_t sbc_get_write_same_sectors(struct se_cmd *cmd); |
Nicholas Bellinger | 66a3d5b | 2014-04-02 14:19:09 -0700 | [diff] [blame] | 71 | void sbc_dif_generate(struct se_cmd *); |
Sagi Grimberg | f75b6fa | 2015-04-19 20:27:19 +0300 | [diff] [blame] | 72 | sense_reason_t sbc_dif_verify(struct se_cmd *, sector_t, unsigned int, |
Nicholas Bellinger | 41861fa | 2014-01-07 22:44:57 +0000 | [diff] [blame] | 73 | unsigned int, struct scatterlist *, int); |
Sagi Grimberg | f75b6fa | 2015-04-19 20:27:19 +0300 | [diff] [blame] | 74 | void sbc_dif_copy_prot(struct se_cmd *, unsigned int, bool, |
| 75 | struct scatterlist *, int); |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 76 | void transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *); |
| 77 | int transport_set_vpd_assoc(struct t10_vpd *, unsigned char *); |
| 78 | int transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *); |
| 79 | int transport_set_vpd_ident(struct t10_vpd *, unsigned char *); |
| 80 | |
Christoph Hellwig | 5873c4d | 2015-05-10 18:14:57 +0200 | [diff] [blame] | 81 | extern struct configfs_attribute *sbc_attrib_attrs[]; |
| 82 | extern struct configfs_attribute *passthrough_attrib_attrs[]; |
| 83 | |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 84 | /* core helpers also used by command snooping in pscsi */ |
Andy Grover | 4949314 | 2012-01-16 16:57:08 -0800 | [diff] [blame] | 85 | void *transport_kmap_data_sg(struct se_cmd *); |
| 86 | void transport_kunmap_data_sg(struct se_cmd *); |
Nicholas Bellinger | c5ff8d6 | 2013-08-22 11:58:43 -0700 | [diff] [blame] | 87 | /* core helpers also used by xcopy during internal command setup */ |
| 88 | int target_alloc_sgl(struct scatterlist **, unsigned int *, u32, bool); |
| 89 | sense_reason_t transport_generic_map_mem_to_cmd(struct se_cmd *, |
| 90 | struct scatterlist *, u32, struct scatterlist *, u32); |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 91 | |
Nicholas Bellinger | 29a05de | 2015-03-22 20:42:19 -0700 | [diff] [blame] | 92 | bool target_lun_is_rdonly(struct se_cmd *); |
Andy Grover | 7bfea53b | 2015-05-19 14:44:40 -0700 | [diff] [blame] | 93 | sense_reason_t passthrough_parse_cdb(struct se_cmd *cmd, |
| 94 | sense_reason_t (*exec_cmd)(struct se_cmd *cmd)); |
Nicholas Bellinger | d30cd12 | 2014-11-27 19:15:48 -0800 | [diff] [blame] | 95 | |
Sagi Grimberg | 4e4937e | 2015-07-16 10:28:05 +0300 | [diff] [blame] | 96 | bool target_sense_desc_format(struct se_device *dev); |
Mike Christie | 8a9ebe7 | 2016-01-18 14:09:27 -0600 | [diff] [blame^] | 97 | sector_t target_to_linux_sector(struct se_device *dev, sector_t lb); |
| 98 | bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib, |
| 99 | struct request_queue *q, int block_size); |
Sagi Grimberg | 4e4937e | 2015-07-16 10:28:05 +0300 | [diff] [blame] | 100 | |
Christoph Hellwig | c4795fb | 2011-11-16 09:46:48 -0500 | [diff] [blame] | 101 | #endif /* TARGET_CORE_BACKEND_H */ |