These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / include / target / target_core_backend.h

diff --git a/kernel/include/target/target_core_backend.h b/kernel/include/target/target_core_backend.h
index 5f12257..28ee5c2 100644 (file)
--- a/kernel/include/target/target_core_backend.h
+++ b/kernel/include/target/target_core_backend.h
@@ -3,18 +3,7 @@
 
 #define TRANSPORT_FLAG_PASSTHROUGH             1
 
-struct target_backend_cits {
-       struct config_item_type tb_dev_cit;
-       struct config_item_type tb_dev_attrib_cit;
-       struct config_item_type tb_dev_pr_cit;
-       struct config_item_type tb_dev_wwn_cit;
-       struct config_item_type tb_dev_alua_tg_pt_gps_cit;
-       struct config_item_type tb_dev_stat_cit;
-};
-
-struct se_subsystem_api {
-       struct list_head sub_api_list;
-
+struct target_backend_ops {
        char name[16];
        char inquiry_prod[16];
        char inquiry_rev[4];
@@ -52,7 +41,7 @@ struct se_subsystem_api {
        int (*format_prot)(struct se_device *);
        void (*free_prot)(struct se_device *);
 
-       struct target_backend_cits tb_cits;
+       struct configfs_attribute **tb_dev_attrib_attrs;
 };
 
 struct sbc_ops {
@@ -60,12 +49,12 @@ struct sbc_ops {
                                     u32, enum dma_data_direction);
        sense_reason_t (*execute_sync_cache)(struct se_cmd *cmd);
        sense_reason_t (*execute_write_same)(struct se_cmd *cmd);
-       sense_reason_t (*execute_write_same_unmap)(struct se_cmd *cmd);
-       sense_reason_t (*execute_unmap)(struct se_cmd *cmd);
+       sense_reason_t (*execute_unmap)(struct se_cmd *cmd,
+                               sector_t lba, sector_t nolb);
 };
 
-int    transport_subsystem_register(struct se_subsystem_api *);
-void   transport_subsystem_release(struct se_subsystem_api *);
+int    transport_backend_register(const struct target_backend_ops *);
+void   target_backend_unregister(const struct target_backend_ops *);
 
 void   target_complete_cmd(struct se_cmd *, u8);
 void   target_complete_cmd_with_length(struct se_cmd *, u8, int);
@@ -79,22 +68,19 @@ sense_reason_t      sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops);
 u32    sbc_get_device_rev(struct se_device *dev);
 u32    sbc_get_device_type(struct se_device *dev);
 sector_t       sbc_get_write_same_sectors(struct se_cmd *cmd);
-sense_reason_t sbc_execute_unmap(struct se_cmd *cmd,
-       sense_reason_t (*do_unmap_fn)(struct se_cmd *cmd, void *priv,
-                                     sector_t lba, sector_t nolb),
-       void *priv);
 void   sbc_dif_generate(struct se_cmd *);
-sense_reason_t sbc_dif_verify_write(struct se_cmd *, sector_t, unsigned int,
+sense_reason_t sbc_dif_verify(struct se_cmd *, sector_t, unsigned int,
                                     unsigned int, struct scatterlist *, int);
-sense_reason_t sbc_dif_verify_read(struct se_cmd *, sector_t, unsigned int,
-                                   unsigned int, struct scatterlist *, int);
-sense_reason_t sbc_dif_read_strip(struct se_cmd *);
-
+void sbc_dif_copy_prot(struct se_cmd *, unsigned int, bool,
+                      struct scatterlist *, int);
 void   transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *);
 int    transport_set_vpd_assoc(struct t10_vpd *, unsigned char *);
 int    transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *);
 int    transport_set_vpd_ident(struct t10_vpd *, unsigned char *);
 
+extern struct configfs_attribute *sbc_attrib_attrs[];
+extern struct configfs_attribute *passthrough_attrib_attrs[];
+
 /* core helpers also used by command snooping in pscsi */
 void   *transport_kmap_data_sg(struct se_cmd *);
 void   transport_kunmap_data_sg(struct se_cmd *);
@@ -103,40 +89,13 @@ int        target_alloc_sgl(struct scatterlist **, unsigned int *, u32, bool);
 sense_reason_t transport_generic_map_mem_to_cmd(struct se_cmd *,
                struct scatterlist *, u32, struct scatterlist *, u32);
 
-void   array_free(void *array, int n);
-
-/* From target_core_configfs.c to setup default backend config_item_types */
-void   target_core_setup_sub_cits(struct se_subsystem_api *);
-
-/* attribute helpers from target_core_device.c for backend drivers */
-bool   se_dev_check_wce(struct se_device *);
-int    se_dev_set_max_unmap_lba_count(struct se_device *, u32);
-int    se_dev_set_max_unmap_block_desc_count(struct se_device *, u32);
-int    se_dev_set_unmap_granularity(struct se_device *, u32);
-int    se_dev_set_unmap_granularity_alignment(struct se_device *, u32);
-int    se_dev_set_max_write_same_len(struct se_device *, u32);
-int    se_dev_set_emulate_model_alias(struct se_device *, int);
-int    se_dev_set_emulate_dpo(struct se_device *, int);
-int    se_dev_set_emulate_fua_write(struct se_device *, int);
-int    se_dev_set_emulate_fua_read(struct se_device *, int);
-int    se_dev_set_emulate_write_cache(struct se_device *, int);
-int    se_dev_set_emulate_ua_intlck_ctrl(struct se_device *, int);
-int    se_dev_set_emulate_tas(struct se_device *, int);
-int    se_dev_set_emulate_tpu(struct se_device *, int);
-int    se_dev_set_emulate_tpws(struct se_device *, int);
-int    se_dev_set_emulate_caw(struct se_device *, int);
-int    se_dev_set_emulate_3pc(struct se_device *, int);
-int    se_dev_set_pi_prot_type(struct se_device *, int);
-int    se_dev_set_pi_prot_format(struct se_device *, int);
-int    se_dev_set_enforce_pr_isids(struct se_device *, int);
-int    se_dev_set_force_pr_aptpl(struct se_device *, int);
-int    se_dev_set_is_nonrot(struct se_device *, int);
-int    se_dev_set_emulate_rest_reord(struct se_device *dev, int);
-int    se_dev_set_queue_depth(struct se_device *, u32);
-int    se_dev_set_max_sectors(struct se_device *, u32);
-int    se_dev_set_optimal_sectors(struct se_device *, u32);
-int    se_dev_set_block_size(struct se_device *, u32);
+bool   target_lun_is_rdonly(struct se_cmd *);
 sense_reason_t passthrough_parse_cdb(struct se_cmd *cmd,
        sense_reason_t (*exec_cmd)(struct se_cmd *cmd));
 
+bool target_sense_desc_format(struct se_device *dev);
+sector_t target_to_linux_sector(struct se_device *dev, sector_t lb);
+bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib,
+                                      struct request_queue *q, int block_size);
+
 #endif /* TARGET_CORE_BACKEND_H */