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Diffstat (limited to 'include/target/target_core_base.h')
-rw-r--r--include/target/target_core_base.h212
1 files changed, 60 insertions, 152 deletions
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 5be8937..7cae236 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -62,20 +62,6 @@
#define PYX_TRANSPORT_STATUS_INTERVAL 5 /* In seconds */
-/*
- * struct se_subsystem_dev->su_dev_flags
-*/
-#define SDF_FIRMWARE_VPD_UNIT_SERIAL 0x00000001
-#define SDF_EMULATED_VPD_UNIT_SERIAL 0x00000002
-#define SDF_USING_UDEV_PATH 0x00000004
-#define SDF_USING_ALIAS 0x00000008
-
-/*
- * struct se_device->dev_flags
- */
-#define DF_SPC2_RESERVATIONS 0x00000001
-#define DF_SPC2_RESERVATIONS_WITH_ISID 0x00000002
-
/* struct se_dev_attrib sanity values */
/* Default max_unmap_lba_count */
#define DA_MAX_UNMAP_LBA_COUNT 0
@@ -85,6 +71,8 @@
#define DA_UNMAP_GRANULARITY_DEFAULT 0
/* Default unmap_granularity_alignment */
#define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT 0
+/* Default max_write_same_len, disabled by default */
+#define DA_MAX_WRITE_SAME_LEN 0
/* Default max transfer length */
#define DA_FABRIC_MAX_SECTORS 8192
/* Emulation for Direct Page Out */
@@ -107,8 +95,6 @@
*/
#define DA_EMULATE_TPWS 0
/* No Emulation for PSCSI by default */
-#define DA_EMULATE_RESERVATIONS 0
-/* No Emulation for PSCSI by default */
#define DA_EMULATE_ALUA 0
/* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */
#define DA_ENFORCE_PR_ISIDS 1
@@ -160,8 +146,6 @@ enum se_cmd_flags_table {
SCF_EMULATED_TASK_SENSE = 0x00000004,
SCF_SCSI_DATA_CDB = 0x00000008,
SCF_SCSI_TMR_CDB = 0x00000010,
- SCF_SCSI_CDB_EXCEPTION = 0x00000020,
- SCF_SCSI_RESERVATION_CONFLICT = 0x00000040,
SCF_FUA = 0x00000080,
SCF_SE_LUN_CMD = 0x00000100,
SCF_BIDI = 0x00000400,
@@ -182,38 +166,33 @@ enum transport_lunflags_table {
TRANSPORT_LUNFLAGS_READ_WRITE = 0x04,
};
-/* struct se_device->dev_status */
-enum transport_device_status_table {
- TRANSPORT_DEVICE_ACTIVATED = 0x01,
- TRANSPORT_DEVICE_DEACTIVATED = 0x02,
- TRANSPORT_DEVICE_QUEUE_FULL = 0x04,
- TRANSPORT_DEVICE_SHUTDOWN = 0x08,
- TRANSPORT_DEVICE_OFFLINE_ACTIVATED = 0x10,
- TRANSPORT_DEVICE_OFFLINE_DEACTIVATED = 0x20,
-};
-
/*
- * Used by transport_send_check_condition_and_sense() and se_cmd->scsi_sense_reason
+ * Used by transport_send_check_condition_and_sense()
* to signal which ASC/ASCQ sense payload should be built.
*/
+typedef unsigned __bitwise__ sense_reason_t;
+
enum tcm_sense_reason_table {
- TCM_NON_EXISTENT_LUN = 0x01,
- TCM_UNSUPPORTED_SCSI_OPCODE = 0x02,
- TCM_INCORRECT_AMOUNT_OF_DATA = 0x03,
- TCM_UNEXPECTED_UNSOLICITED_DATA = 0x04,
- TCM_SERVICE_CRC_ERROR = 0x05,
- TCM_SNACK_REJECTED = 0x06,
- TCM_SECTOR_COUNT_TOO_MANY = 0x07,
- TCM_INVALID_CDB_FIELD = 0x08,
- TCM_INVALID_PARAMETER_LIST = 0x09,
- TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE = 0x0a,
- TCM_UNKNOWN_MODE_PAGE = 0x0b,
- TCM_WRITE_PROTECTED = 0x0c,
- TCM_CHECK_CONDITION_ABORT_CMD = 0x0d,
- TCM_CHECK_CONDITION_UNIT_ATTENTION = 0x0e,
- TCM_CHECK_CONDITION_NOT_READY = 0x0f,
- TCM_RESERVATION_CONFLICT = 0x10,
- TCM_ADDRESS_OUT_OF_RANGE = 0x11,
+#define R(x) (__force sense_reason_t )(x)
+ TCM_NON_EXISTENT_LUN = R(0x01),
+ TCM_UNSUPPORTED_SCSI_OPCODE = R(0x02),
+ TCM_INCORRECT_AMOUNT_OF_DATA = R(0x03),
+ TCM_UNEXPECTED_UNSOLICITED_DATA = R(0x04),
+ TCM_SERVICE_CRC_ERROR = R(0x05),
+ TCM_SNACK_REJECTED = R(0x06),
+ TCM_SECTOR_COUNT_TOO_MANY = R(0x07),
+ TCM_INVALID_CDB_FIELD = R(0x08),
+ TCM_INVALID_PARAMETER_LIST = R(0x09),
+ TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE = R(0x0a),
+ TCM_UNKNOWN_MODE_PAGE = R(0x0b),
+ TCM_WRITE_PROTECTED = R(0x0c),
+ TCM_CHECK_CONDITION_ABORT_CMD = R(0x0d),
+ TCM_CHECK_CONDITION_UNIT_ATTENTION = R(0x0e),
+ TCM_CHECK_CONDITION_NOT_READY = R(0x0f),
+ TCM_RESERVATION_CONFLICT = R(0x10),
+ TCM_ADDRESS_OUT_OF_RANGE = R(0x11),
+ TCM_OUT_OF_RESOURCES = R(0x12),
+#undef R
};
enum target_sc_flags_table {
@@ -246,30 +225,6 @@ enum tcm_tmrsp_table {
TMR_FUNCTION_REJECTED = 255,
};
-struct se_obj {
- atomic_t obj_access_count;
-};
-
-/*
- * Used by TCM Core internally to signal if ALUA emulation is enabled or
- * disabled, or running in with TCM/pSCSI passthrough mode
- */
-typedef enum {
- SPC_ALUA_PASSTHROUGH,
- SPC2_ALUA_DISABLED,
- SPC3_ALUA_EMULATED
-} t10_alua_index_t;
-
-/*
- * Used by TCM Core internally to signal if SAM Task Attribute emulation
- * is enabled or disabled, or running in with TCM/pSCSI passthrough mode
- */
-typedef enum {
- SAM_TASK_ATTR_PASSTHROUGH,
- SAM_TASK_ATTR_UNTAGGED,
- SAM_TASK_ATTR_EMULATED
-} t10_task_attr_index_t;
-
/*
* Used for target SCSI statistics
*/
@@ -283,17 +238,15 @@ typedef enum {
struct se_cmd;
struct t10_alua {
- t10_alua_index_t alua_type;
/* ALUA Target Port Group ID */
u16 alua_tg_pt_gps_counter;
u32 alua_tg_pt_gps_count;
spinlock_t tg_pt_gps_lock;
- struct se_subsystem_dev *t10_sub_dev;
+ struct se_device *t10_dev;
/* Used for default ALUA Target Port Group */
struct t10_alua_tg_pt_gp *default_tg_pt_gp;
/* Used for default ALUA Target Port Group ConfigFS group */
struct config_group alua_tg_pt_gps_group;
- int (*alua_state_check)(struct se_cmd *, unsigned char *, u8 *);
struct list_head tg_pt_gps_list;
};
@@ -335,7 +288,7 @@ struct t10_alua_tg_pt_gp {
atomic_t tg_pt_gp_ref_cnt;
spinlock_t tg_pt_gp_lock;
struct mutex tg_pt_gp_md_mutex;
- struct se_subsystem_dev *tg_pt_gp_su_dev;
+ struct se_device *tg_pt_gp_dev;
struct config_group tg_pt_gp_group;
struct list_head tg_pt_gp_list;
struct list_head tg_pt_gp_mem_list;
@@ -366,23 +319,11 @@ struct t10_wwn {
char revision[4];
char unit_serial[INQUIRY_VPD_SERIAL_LEN];
spinlock_t t10_vpd_lock;
- struct se_subsystem_dev *t10_sub_dev;
+ struct se_device *t10_dev;
struct config_group t10_wwn_group;
struct list_head t10_vpd_list;
};
-
-/*
- * Used by TCM Core internally to signal if >= SPC-3 persistent reservations
- * emulation is enabled or disabled, or running in with TCM/pSCSI passthrough
- * mode
- */
-typedef enum {
- SPC_PASSTHROUGH,
- SPC2_RESERVATIONS,
- SPC3_PERSISTENT_RESERVATIONS
-} t10_reservations_index_t;
-
struct t10_pr_registration {
/* Used for fabrics that contain WWN+ISID */
#define PR_REG_ISID_LEN 16
@@ -424,18 +365,6 @@ struct t10_pr_registration {
struct list_head pr_reg_atp_mem_list;
};
-/*
- * This set of function pointer ops is set based upon SPC3_PERSISTENT_RESERVATIONS,
- * SPC2_RESERVATIONS or SPC_PASSTHROUGH in drivers/target/target_core_pr.c:
- * core_setup_reservations()
- */
-struct t10_reservation_ops {
- int (*t10_reservation_check)(struct se_cmd *, u32 *);
- int (*t10_seq_non_holder)(struct se_cmd *, unsigned char *, u32);
- int (*t10_pr_register)(struct se_cmd *);
- int (*t10_pr_clear)(struct se_cmd *);
-};
-
struct t10_reservation {
/* Reservation effects all target ports */
int pr_all_tg_pt;
@@ -446,7 +375,6 @@ struct t10_reservation {
#define PR_APTPL_BUF_LEN 8192
u32 pr_aptpl_buf_len;
u32 pr_generation;
- t10_reservations_index_t res_type;
spinlock_t registration_lock;
spinlock_t aptpl_reg_lock;
/*
@@ -462,7 +390,6 @@ struct t10_reservation {
struct se_node_acl *pr_res_holder;
struct list_head registration_list;
struct list_head aptpl_reg_list;
- struct t10_reservation_ops pr_ops;
};
struct se_tmr_req {
@@ -485,7 +412,6 @@ struct se_cmd {
u8 scsi_status;
u8 scsi_asc;
u8 scsi_ascq;
- u8 scsi_sense_reason;
u16 scsi_sense_length;
/* Delay for ALUA Active/NonOptimized state access in milliseconds */
int alua_nonop_delay;
@@ -523,7 +449,7 @@ struct se_cmd {
struct completion cmd_wait_comp;
struct kref cmd_kref;
struct target_core_fabric_ops *se_tfo;
- int (*execute_cmd)(struct se_cmd *);
+ sense_reason_t (*execute_cmd)(struct se_cmd *);
void (*transport_complete_callback)(struct se_cmd *);
unsigned char *t_task_cdb;
@@ -581,6 +507,8 @@ struct se_node_acl {
bool acl_stop:1;
u32 queue_depth;
u32 acl_index;
+#define MAX_ACL_TAG_SIZE 64
+ char acl_tag[MAX_ACL_TAG_SIZE];
u64 num_cmds;
u64 read_bytes;
u64 write_bytes;
@@ -662,15 +590,6 @@ struct se_dev_entry {
struct list_head ua_list;
};
-struct se_dev_limits {
- /* Max supported HW queue depth */
- u32 hw_queue_depth;
- /* Max supported virtual queue depth */
- u32 queue_depth;
- /* From include/linux/blkdev.h for the other HW/SW limits. */
- struct queue_limits limits;
-};
-
struct se_dev_attrib {
int emulate_dpo;
int emulate_fua_write;
@@ -680,8 +599,6 @@ struct se_dev_attrib {
int emulate_tas;
int emulate_tpu;
int emulate_tpws;
- int emulate_reservations;
- int emulate_alua;
int enforce_pr_isids;
int is_nonrot;
int emulate_rest_reord;
@@ -696,7 +613,8 @@ struct se_dev_attrib {
u32 max_unmap_block_desc_count;
u32 unmap_granularity;
u32 unmap_granularity_alignment;
- struct se_subsystem_dev *da_sub_dev;
+ u32 max_write_same_len;
+ struct se_device *da_dev;
struct config_group da_group;
};
@@ -707,48 +625,25 @@ struct se_dev_stat_grps {
struct config_group scsi_lu_group;
};
-struct se_subsystem_dev {
-/* Used for struct se_subsystem_dev-->se_dev_alias, must be less than PAGE_SIZE */
-#define SE_DEV_ALIAS_LEN 512
- unsigned char se_dev_alias[SE_DEV_ALIAS_LEN];
-/* Used for struct se_subsystem_dev->se_dev_udev_path[], must be less than PAGE_SIZE */
-#define SE_UDEV_PATH_LEN 512
- unsigned char se_dev_udev_path[SE_UDEV_PATH_LEN];
- u32 su_dev_flags;
- struct se_hba *se_dev_hba;
- struct se_device *se_dev_ptr;
- struct se_dev_attrib se_dev_attrib;
- /* T10 Asymmetric Logical Unit Assignment for Target Ports */
- struct t10_alua t10_alua;
- /* T10 Inquiry and VPD WWN Information */
- struct t10_wwn t10_wwn;
- /* T10 SPC-2 + SPC-3 Reservations */
- struct t10_reservation t10_pr;
- spinlock_t se_dev_lock;
- void *se_dev_su_ptr;
- struct config_group se_dev_group;
- /* For T10 Reservations */
- struct config_group se_dev_pr_group;
- /* For target_core_stat.c groups */
- struct se_dev_stat_grps dev_stat_grps;
-};
-
struct se_device {
+#define SE_DEV_LINK_MAGIC 0xfeeddeef
+ u32 dev_link_magic;
/* RELATIVE TARGET PORT IDENTIFER Counter */
u16 dev_rpti_counter;
/* Used for SAM Task Attribute ordering */
u32 dev_cur_ordered_id;
u32 dev_flags;
+#define DF_CONFIGURED 0x00000001
+#define DF_FIRMWARE_VPD_UNIT_SERIAL 0x00000002
+#define DF_EMULATED_VPD_UNIT_SERIAL 0x00000004
+#define DF_USING_UDEV_PATH 0x00000008
+#define DF_USING_ALIAS 0x00000010
u32 dev_port_count;
- /* See transport_device_status_table */
- u32 dev_status;
/* Physical device queue depth */
u32 queue_depth;
/* Used for SPC-2 reservations enforce of ISIDs */
u64 dev_res_bin_isid;
- t10_task_attr_index_t dev_task_attr_type;
/* Pointer to transport specific device structure */
- void *dev_ptr;
u32 dev_index;
u64 creation_time;
u32 num_resets;
@@ -761,13 +656,13 @@ struct se_device {
atomic_t dev_ordered_id;
atomic_t dev_ordered_sync;
atomic_t dev_qf_count;
- struct se_obj dev_obj;
- struct se_obj dev_access_obj;
- struct se_obj dev_export_obj;
+ int export_count;
spinlock_t delayed_cmd_lock;
spinlock_t execute_task_lock;
spinlock_t dev_reservation_lock;
- spinlock_t dev_status_lock;
+ unsigned int dev_reservation_flags;
+#define DRF_SPC2_RESERVATIONS 0x00000001
+#define DRF_SPC2_RESERVATIONS_WITH_ISID 0x00000002
spinlock_t se_port_lock;
spinlock_t se_tmr_lock;
spinlock_t qf_cmd_lock;
@@ -786,7 +681,20 @@ struct se_device {
struct list_head qf_cmd_list;
/* Pointer to associated SE HBA */
struct se_hba *se_hba;
- struct se_subsystem_dev *se_sub_dev;
+ /* T10 Inquiry and VPD WWN Information */
+ struct t10_wwn t10_wwn;
+ /* T10 Asymmetric Logical Unit Assignment for Target Ports */
+ struct t10_alua t10_alua;
+ /* T10 SPC-2 + SPC-3 Reservations */
+ struct t10_reservation t10_pr;
+ struct se_dev_attrib dev_attrib;
+ struct config_group dev_group;
+ struct config_group dev_pr_group;
+ struct se_dev_stat_grps dev_stat_grps;
+#define SE_DEV_ALIAS_LEN 512 /* must be less than PAGE_SIZE */
+ unsigned char dev_alias[SE_DEV_ALIAS_LEN];
+#define SE_UDEV_PATH_LEN 512 /* must be less than PAGE_SIZE */
+ unsigned char udev_path[SE_UDEV_PATH_LEN];
/* Pointer to template of function pointers for transport */
struct se_subsystem_api *transport;
/* Linked list for struct se_hba struct se_device list */
@@ -803,8 +711,6 @@ struct se_hba {
u32 hba_index;
/* Pointer to transport specific host structure. */
void *hba_ptr;
- /* Linked list for struct se_device */
- struct list_head hba_dev_list;
struct list_head hba_node;
spinlock_t device_lock;
struct config_group hba_group;
@@ -820,6 +726,8 @@ struct se_port_stat_grps {
};
struct se_lun {
+#define SE_LUN_LINK_MAGIC 0xffff7771
+ u32 lun_link_magic;
/* See transport_lun_status_table */
enum transport_lun_status_table lun_status;
u32 lun_access;
generated by cgit v0.10.2 at 2024-08-07 15:17:25 (GMT)