xenbus: don't BUG() on user mode induced condition

[pandora-kernel.git] / include / target / target_core_base.h

diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index f639973..6ee550e 100644 (file)
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -34,6 +34,7 @@
 #define TRANSPORT_SENSE_BUFFER                 SCSI_SENSE_BUFFERSIZE
 /* Used by transport_send_check_condition_and_sense() */
 #define SPC_SENSE_KEY_OFFSET                   2
+#define SPC_ADD_SENSE_LEN_OFFSET               7
 #define SPC_ASC_KEY_OFFSET                     12
 #define SPC_ASCQ_KEY_OFFSET                    13
 #define TRANSPORT_IQN_LEN                      224
@@ -103,8 +104,10 @@ enum se_cmd_flags_table {
        SCF_SCSI_NON_DATA_CDB           = 0x00000040,
        SCF_SCSI_CDB_EXCEPTION          = 0x00000080,
        SCF_SCSI_RESERVATION_CONFLICT   = 0x00000100,
+       SCF_FUA                         = 0x00000200,
        SCF_SE_LUN_CMD                  = 0x00000800,
        SCF_SE_ALLOW_EOO                = 0x00001000,
+       SCF_BIDI                        = 0x00002000,
        SCF_SENT_CHECK_CONDITION        = 0x00004000,
        SCF_OVERFLOW_BIT                = 0x00008000,
        SCF_UNDERFLOW_BIT               = 0x00010000,
@@ -154,6 +157,7 @@ enum tcm_sense_reason_table {
        TCM_CHECK_CONDITION_UNIT_ATTENTION      = 0x0e,
        TCM_CHECK_CONDITION_NOT_READY           = 0x0f,
        TCM_RESERVATION_CONFLICT                = 0x10,
+       TCM_ADDRESS_OUT_OF_RANGE                = 0x11,
 };
 
 struct se_obj {
@@ -211,7 +215,6 @@ struct t10_alua_lu_gp {
        u16     lu_gp_id;
        int     lu_gp_valid_id;
        u32     lu_gp_members;
-       atomic_t lu_gp_shutdown;
        atomic_t lu_gp_ref_cnt;
        spinlock_t lu_gp_lock;
        struct config_group lu_gp_group;
@@ -439,7 +442,6 @@ struct se_cmd {
        /* Used for sense data */
        void                    *sense_buffer;
        struct list_head        se_delayed_node;
-       struct list_head        se_ordered_node;
        struct list_head        se_lun_node;
        struct list_head        se_qf_node;
        struct se_device      *se_dev;
@@ -459,8 +461,6 @@ struct se_cmd {
        unsigned char           __t_task_cdb[TCM_MAX_COMMAND_SIZE];
        unsigned long long      t_task_lba;
        int                     t_tasks_failed;
-       int                     t_tasks_fua;
-       bool                    t_tasks_bidi;
        u32                     t_tasks_sg_chained_no;
        atomic_t                t_fe_count;
        atomic_t                t_se_count;
@@ -485,16 +485,9 @@ struct se_cmd {
 
        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
-        * and other HW target mode fabric modules.
-        */
-       struct scatterlist      *t_task_pt_sgl;
-       u32                     t_task_pt_sgl_num;
-
        struct scatterlist      *t_data_sg;
        unsigned int            t_data_nents;
+       void                    *t_data_vmap;
        struct scatterlist      *t_bidi_data_sg;
        unsigned int            t_bidi_data_nents;
 
@@ -679,7 +672,6 @@ struct se_subsystem_dev {
        struct t10_reservation t10_pr;
        spinlock_t      se_dev_lock;
        void            *se_dev_su_ptr;
-       struct list_head se_dev_node;
        struct config_group se_dev_group;
        /* For T10 Reservations */
        struct config_group se_dev_pr_group;
@@ -688,9 +680,6 @@ struct se_subsystem_dev {
 } ____cacheline_aligned;
 
 struct se_device {
-       /* Set to 1 if thread is NOT sleeping on thread_sem */
-       u8                      thread_active;
-       u8                      dev_status_timer_flags;
        /* RELATIVE TARGET PORT IDENTIFER Counter */
        u16                     dev_rpti_counter;
        /* Used for SAM Task Attribute ordering */
@@ -715,14 +704,10 @@ struct se_device {
        u64                     write_bytes;
        spinlock_t              stats_lock;
        /* Active commands on this virtual SE device */
-       atomic_t                active_cmds;
        atomic_t                simple_cmds;
        atomic_t                depth_left;
        atomic_t                dev_ordered_id;
-       atomic_t                dev_tur_active;
        atomic_t                execute_tasks;
-       atomic_t                dev_status_thr_count;
-       atomic_t                dev_hoq_count;
        atomic_t                dev_ordered_sync;
        atomic_t                dev_qf_count;
        struct se_obj           dev_obj;
@@ -730,14 +715,9 @@ struct se_device {
        struct se_obj           dev_export_obj;
        struct se_queue_obj     dev_queue_obj;
        spinlock_t              delayed_cmd_lock;
-       spinlock_t              ordered_cmd_lock;
        spinlock_t              execute_task_lock;
-       spinlock_t              state_task_lock;
-       spinlock_t              dev_alua_lock;
        spinlock_t              dev_reservation_lock;
-       spinlock_t              dev_state_lock;
        spinlock_t              dev_status_lock;
-       spinlock_t              dev_status_thr_lock;
        spinlock_t              se_port_lock;
        spinlock_t              se_tmr_lock;
        spinlock_t              qf_cmd_lock;
@@ -749,14 +729,10 @@ struct se_device {
        struct t10_pr_registration *dev_pr_res_holder;
        struct list_head        dev_sep_list;
        struct list_head        dev_tmr_list;
-       struct timer_list       dev_status_timer;
        /* Pointer to descriptor for processing thread */
        struct task_struct      *process_thread;
-       pid_t                   process_thread_pid;
-       struct task_struct              *dev_mgmt_thread;
        struct work_struct      qf_work_queue;
        struct list_head        delayed_cmd_list;
-       struct list_head        ordered_cmd_list;
        struct list_head        execute_task_list;
        struct list_head        state_task_list;
        struct list_head        qf_cmd_list;
@@ -767,8 +743,6 @@ struct se_device {
        struct se_subsystem_api *transport;
        /* Linked list for struct se_hba struct se_device list */
        struct list_head        dev_list;
-       /* Linked list for struct se_global->g_se_dev_list */
-       struct list_head        g_se_dev_list;
 }  ____cacheline_aligned;
 
 struct se_hba {
@@ -830,7 +804,6 @@ struct se_port {
        u32             sep_index;
        struct scsi_port_stats sep_stats;
        /* Used for ALUA Target Port Groups membership */
-       atomic_t        sep_tg_pt_gp_active;
        atomic_t        sep_tg_pt_secondary_offline;
        /* Used for PR ALL_TG_PT=1 */
        atomic_t        sep_tg_pt_ref_cnt;