89 строки
3.0 KiB
C
89 строки
3.0 KiB
C
#ifndef ISCSI_THREAD_QUEUE_H
|
|
#define ISCSI_THREAD_QUEUE_H
|
|
|
|
/*
|
|
* Defines for thread sets.
|
|
*/
|
|
extern int iscsi_thread_set_force_reinstatement(struct iscsi_conn *);
|
|
extern void iscsi_add_ts_to_inactive_list(struct iscsi_thread_set *);
|
|
extern int iscsi_allocate_thread_sets(u32);
|
|
extern void iscsi_deallocate_thread_sets(void);
|
|
extern void iscsi_activate_thread_set(struct iscsi_conn *, struct iscsi_thread_set *);
|
|
extern struct iscsi_thread_set *iscsi_get_thread_set(void);
|
|
extern void iscsi_set_thread_clear(struct iscsi_conn *, u8);
|
|
extern void iscsi_set_thread_set_signal(struct iscsi_conn *, u8);
|
|
extern int iscsi_release_thread_set(struct iscsi_conn *);
|
|
extern struct iscsi_conn *iscsi_rx_thread_pre_handler(struct iscsi_thread_set *);
|
|
extern struct iscsi_conn *iscsi_tx_thread_pre_handler(struct iscsi_thread_set *);
|
|
extern int iscsi_thread_set_init(void);
|
|
extern void iscsi_thread_set_free(void);
|
|
|
|
extern int iscsi_target_tx_thread(void *);
|
|
extern int iscsi_target_rx_thread(void *);
|
|
|
|
#define TARGET_THREAD_SET_COUNT 4
|
|
|
|
#define ISCSI_RX_THREAD 1
|
|
#define ISCSI_TX_THREAD 2
|
|
#define ISCSI_RX_THREAD_NAME "iscsi_trx"
|
|
#define ISCSI_TX_THREAD_NAME "iscsi_ttx"
|
|
#define ISCSI_BLOCK_RX_THREAD 0x1
|
|
#define ISCSI_BLOCK_TX_THREAD 0x2
|
|
#define ISCSI_CLEAR_RX_THREAD 0x1
|
|
#define ISCSI_CLEAR_TX_THREAD 0x2
|
|
#define ISCSI_SIGNAL_RX_THREAD 0x1
|
|
#define ISCSI_SIGNAL_TX_THREAD 0x2
|
|
|
|
/* struct iscsi_thread_set->status */
|
|
#define ISCSI_THREAD_SET_FREE 1
|
|
#define ISCSI_THREAD_SET_ACTIVE 2
|
|
#define ISCSI_THREAD_SET_DIE 3
|
|
#define ISCSI_THREAD_SET_RESET 4
|
|
#define ISCSI_THREAD_SET_DEALLOCATE_THREADS 5
|
|
|
|
/* By default allow a maximum of 32K iSCSI connections */
|
|
#define ISCSI_TS_BITMAP_BITS 32768
|
|
|
|
struct iscsi_thread_set {
|
|
/* flags used for blocking and restarting sets */
|
|
int blocked_threads;
|
|
/* flag for creating threads */
|
|
int create_threads;
|
|
/* flag for delaying readding to inactive list */
|
|
int delay_inactive;
|
|
/* status for thread set */
|
|
int status;
|
|
/* which threads have had signals sent */
|
|
int signal_sent;
|
|
/* flag for which threads exited first */
|
|
int thread_clear;
|
|
/* Active threads in the thread set */
|
|
int thread_count;
|
|
/* Unique thread ID */
|
|
u32 thread_id;
|
|
/* pointer to connection if set is active */
|
|
struct iscsi_conn *conn;
|
|
/* used for controlling ts state accesses */
|
|
spinlock_t ts_state_lock;
|
|
/* Used for rx side post startup */
|
|
struct completion rx_post_start_comp;
|
|
/* Used for tx side post startup */
|
|
struct completion tx_post_start_comp;
|
|
/* used for restarting thread queue */
|
|
struct completion rx_restart_comp;
|
|
/* used for restarting thread queue */
|
|
struct completion tx_restart_comp;
|
|
/* used for normal unused blocking */
|
|
struct completion rx_start_comp;
|
|
/* used for normal unused blocking */
|
|
struct completion tx_start_comp;
|
|
/* OS descriptor for rx thread */
|
|
struct task_struct *rx_thread;
|
|
/* OS descriptor for tx thread */
|
|
struct task_struct *tx_thread;
|
|
/* struct iscsi_thread_set in list list head*/
|
|
struct list_head ts_list;
|
|
};
|
|
|
|
#endif /*** ISCSI_THREAD_QUEUE_H ***/
|