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target: remove struct se_task

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We can use struct se_cmd for everything it did.  Make sure to pass the S/G
list and data direction to the execution function to ease adding back BIDI
support later on.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Christoph Hellwig
2012-04-24 00:25:06 -04:00
committed by Nicholas Bellinger
parent cf572a9627
commit 5787cacd0b
11 changed files with 211 additions and 423 deletions
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11
include/target/target_core_backend.h
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@@ -23,12 +23,11 @@ struct se_subsystem_api {
struct se_device *(*create_virtdevice)(struct se_hba *,
struct se_subsystem_dev *, void *);
void (*free_device)(void *);
int (*transport_complete)(struct se_task *task);
struct se_task *(*alloc_task)(unsigned char *cdb);
int (*do_task)(struct se_task *);
int (*transport_complete)(struct se_cmd *cmd, struct scatterlist *);
int (*execute_cmd)(struct se_cmd *, struct scatterlist *, u32,
enum dma_data_direction);
int (*do_discard)(struct se_device *, sector_t, u32);
void (*do_sync_cache)(struct se_cmd *);
void (*free_task)(struct se_task *);
ssize_t (*check_configfs_dev_params)(struct se_hba *,
struct se_subsystem_dev *);
ssize_t (*set_configfs_dev_params)(struct se_hba *,
@@ -38,7 +37,7 @@ struct se_subsystem_api {
u32 (*get_device_rev)(struct se_device *);
u32 (*get_device_type)(struct se_device *);
sector_t (*get_blocks)(struct se_device *);
unsigned char *(*get_sense_buffer)(struct se_task *);
unsigned char *(*get_sense_buffer)(struct se_cmd *);
};
int transport_subsystem_register(struct se_subsystem_api *);
@@ -48,8 +47,6 @@ struct se_device *transport_add_device_to_core_hba(struct se_hba *,
struct se_subsystem_api *, struct se_subsystem_dev *, u32,
void *, struct se_dev_limits *, const char *, const char *);
void transport_complete_sync_cache(struct se_cmd *, int);
void transport_complete_task(struct se_task *, int);
void target_complete_cmd(struct se_cmd *, u8);
void transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *);

11
include/target/target_core_base.h
View File

@@ -477,14 +477,6 @@ struct se_queue_obj {
wait_queue_head_t thread_wq;
};
struct se_task {
struct se_cmd *task_se_cmd;
struct scatterlist *task_sg;
u32 task_sg_nents;
u8 task_scsi_status;
enum dma_data_direction task_data_direction;
};
struct se_tmr_req {
/* Task Management function to be performed */
u8 function;
@@ -592,7 +584,8 @@ struct se_cmd {
/* old task stop completion, consider merging with some of the above */
struct completion task_stop_comp;
struct se_task *t_task;
/* backend private data */
void *priv;
};
struct se_ua {