1 files changed, 21 insertions, 50 deletions

diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 27040653005..35aa786f93d 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -10,10 +10,7 @@
 #include <net/tcp.h>
 
 #define TARGET_CORE_MOD_VERSION         "v4.1.0-rc1-ml"
-#define SHUTDOWN_SIGS   (sigmask(SIGKILL)|sigmask(SIGINT)|sigmask(SIGABRT))
 
-/* Used by transport_generic_allocate_iovecs() */
-#define TRANSPORT_IOV_DATA_BUFFER               5
 /* Maximum Number of LUNs per Target Portal Group */
 /* Don't raise above 511 or REPORT_LUNS needs to handle >1 page */
 #define TRANSPORT_MAX_LUNS_PER_TPG              256
@@ -75,32 +72,26 @@ enum transport_tpg_type_table {
 };
 
 /* Used for generate timer flags */
-enum timer_flags_table {
-        TF_RUNNING      = 0x01,
-        TF_STOP         = 0x02,
+enum se_task_flags {
+        TF_ACTIVE               = (1 << 0),
+        TF_SENT                 = (1 << 1),
+        TF_REQUEST_STOP         = (1 << 2),
 };
 
 /* Special transport agnostic struct se_cmd->t_states */
 enum transport_state_table {
         TRANSPORT_NO_STATE      = 0,
         TRANSPORT_NEW_CMD       = 1,
-        TRANSPORT_DEFERRED_CMD  = 2,
         TRANSPORT_WRITE_PENDING = 3,
         TRANSPORT_PROCESS_WRITE = 4,
         TRANSPORT_PROCESSING    = 5,
-        TRANSPORT_COMPLETE_OK   = 6,
-        TRANSPORT_COMPLETE_FAILURE = 7,
-        TRANSPORT_COMPLETE_TIMEOUT = 8,
+        TRANSPORT_COMPLETE      = 6,
         TRANSPORT_PROCESS_TMR   = 9,
-        TRANSPORT_TMR_COMPLETE  = 10,
         TRANSPORT_ISTATE_PROCESSING = 11,
-        TRANSPORT_ISTATE_PROCESSED = 12,
-        TRANSPORT_KILL          = 13,
-        TRANSPORT_REMOVE        = 14,
-        TRANSPORT_FREE          = 15,
         TRANSPORT_NEW_CMD_MAP   = 16,
         TRANSPORT_FREE_CMD_INTR = 17,
         TRANSPORT_COMPLETE_QF_WP = 18,
+        TRANSPORT_COMPLETE_QF_OK = 19,
 };
 
 /* Used for struct se_cmd->se_cmd_flags */
@@ -125,7 +116,6 @@ enum se_cmd_flags_table {
         SCF_UNUSED                      = 0x00100000,
         SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00400000,
         SCF_EMULATE_CDB_ASYNC           = 0x01000000,
-        SCF_EMULATE_QUEUE_FULL          = 0x02000000,
 };
 
 /* struct se_dev_entry->lun_flags and struct se_lun->lun_access */
@@ -401,34 +391,22 @@ struct se_queue_obj {
 } ____cacheline_aligned;
 
 struct se_task {
-        unsigned char   task_sense;
-        struct scatterlist *task_sg;
-        u32             task_sg_nents;
-        struct scatterlist *task_sg_bidi;
-        u8              task_scsi_status;
-        u8              task_flags;
-        int             task_error_status;
-        int             task_state_flags;
-        bool            task_padded_sg;
         unsigned long long      task_lba;
-        u32             task_no;
-        u32             task_sectors;
-        u32             task_size;
+        u32                     task_sectors;
+        u32                     task_size;
+        struct se_cmd           *task_se_cmd;
+        struct scatterlist      *task_sg;
+        u32                     task_sg_nents;
+        u16                     task_flags;
+        u8                      task_sense;
+        u8                      task_scsi_status;
+        int                     task_error_status;
         enum dma_data_direction task_data_direction;
-        struct se_cmd *task_se_cmd;
-        struct se_device        *se_dev;
+        atomic_t                task_state_active;
+        struct list_head        t_list;
+        struct list_head        t_execute_list;
+        struct list_head        t_state_list;
         struct completion       task_stop_comp;
-        atomic_t        task_active;
-        atomic_t        task_execute_queue;
-        atomic_t        task_timeout;
-        atomic_t        task_sent;
-        atomic_t        task_stop;
-        atomic_t        task_state_active;
-        struct timer_list       task_timer;
-        struct se_device *se_obj_ptr;
-        struct list_head t_list;
-        struct list_head t_execute_list;
-        struct list_head t_state_list;
 } ____cacheline_aligned;
 
 struct se_cmd {
@@ -446,8 +424,6 @@ struct se_cmd {
         int                     sam_task_attr;
         /* Transport protocol dependent state, see transport_state_table */
         enum transport_state_table t_state;
-        /* Transport protocol dependent state for out of order CmdSNs */
-        int                     deferred_t_state;
         /* Transport specific error status */
         int                     transport_error_status;
         /* See se_cmd_flags_table */
@@ -461,7 +437,6 @@ struct se_cmd {
         u32                     orig_fe_lun;
         /* Persistent Reservation key */
         u64                     pr_res_key;
-        atomic_t                transport_sent;
         /* Used for sense data */
         void                    *sense_buffer;
         struct list_head        se_delayed_node;
@@ -479,10 +454,7 @@ struct se_cmd {
         struct list_head        se_queue_node;
         struct target_core_fabric_ops *se_tfo;
         int (*transport_emulate_cdb)(struct se_cmd *);
-        void (*transport_split_cdb)(unsigned long long, u32, unsigned char *);
-        void (*transport_wait_for_tasks)(struct se_cmd *, int, int);
         void (*transport_complete_callback)(struct se_cmd *);
-        int (*transport_qf_callback)(struct se_cmd *);
 
         unsigned char           *t_task_cdb;
         unsigned char           __t_task_cdb[TCM_MAX_COMMAND_SIZE];
@@ -495,7 +467,6 @@ struct se_cmd {
         atomic_t                t_se_count;
         atomic_t                t_task_cdbs_left;
         atomic_t                t_task_cdbs_ex_left;
-        atomic_t                t_task_cdbs_timeout_left;
         atomic_t                t_task_cdbs_sent;
         atomic_t                t_transport_aborted;
         atomic_t                t_transport_active;
@@ -503,7 +474,6 @@ struct se_cmd {
         atomic_t                t_transport_queue_active;
         atomic_t                t_transport_sent;
         atomic_t                t_transport_stop;
-        atomic_t                t_transport_timeout;
         atomic_t                transport_dev_active;
         atomic_t                transport_lun_active;
         atomic_t                transport_lun_fe_stop;
@@ -514,6 +484,8 @@ struct se_cmd {
         struct completion       transport_lun_stop_comp;
         struct scatterlist      *t_tasks_sg_chained;
 
+        struct work_struct      work;
+
         /*
          * Used for pre-registered fabric SGL passthrough WRITE and READ
          * with the special SCF_PASSTHROUGH_CONTIG_TO_SG case for TCM_Loop
@@ -670,7 +642,6 @@ struct se_dev_attrib {
         u32             optimal_sectors;
         u32             hw_queue_depth;
         u32             queue_depth;
-        u32             task_timeout;
         u32             max_unmap_lba_count;
         u32             max_unmap_block_desc_count;
         u32             unmap_granularity;