diff options
Diffstat (limited to 'include/scsi/libiscsi.h')
| -rw-r--r-- | include/scsi/libiscsi.h | 35 |
1 files changed, 24 insertions, 11 deletions
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h index 4ee233e5a6ff..654cc3918c94 100644 --- a/include/scsi/libiscsi.h +++ b/include/scsi/libiscsi.h @@ -19,6 +19,7 @@ #include <linux/refcount.h> #include <scsi/iscsi_proto.h> #include <scsi/iscsi_if.h> +#include <scsi/scsi_cmnd.h> #include <scsi/scsi_transport_iscsi.h> struct scsi_transport_template; @@ -52,8 +53,10 @@ enum { #define ISID_SIZE 6 -/* Connection suspend "bit" */ -#define ISCSI_SUSPEND_BIT 1 +/* Connection flags */ +#define ISCSI_CONN_FLAG_SUSPEND_TX 0 +#define ISCSI_CONN_FLAG_SUSPEND_RX 1 +#define ISCSI_CONN_FLAG_BOUND 2 #define ISCSI_ITT_MASK 0x1fff #define ISCSI_TOTAL_CMDS_MAX 4096 @@ -132,9 +135,6 @@ struct iscsi_task { void *dd_data; /* driver/transport data */ }; -/* invalid scsi_task pointer */ -#define INVALID_SCSI_TASK (struct iscsi_task *)-1l - static inline int iscsi_task_has_unsol_data(struct iscsi_task *task) { return task->unsol_r2t.data_length > task->unsol_r2t.sent; @@ -152,6 +152,17 @@ static inline bool iscsi_task_is_completed(struct iscsi_task *task) task->state == ISCSI_TASK_ABRT_SESS_RECOV; } +/* Private data associated with struct scsi_cmnd. */ +struct iscsi_cmd { + struct iscsi_task *task; + int age; +}; + +static inline struct iscsi_cmd *iscsi_cmd(struct scsi_cmnd *cmd) +{ + return scsi_cmd_priv(cmd); +} + /* Connection's states */ enum { ISCSI_CONN_INITIAL_STAGE, @@ -199,8 +210,9 @@ struct iscsi_conn { struct list_head cmdqueue; /* data-path cmd queue */ struct list_head requeue; /* tasks needing another run */ struct work_struct xmitwork; /* per-conn. xmit workqueue */ - unsigned long suspend_tx; /* suspend Tx */ - unsigned long suspend_rx; /* suspend Rx */ + /* recv */ + struct work_struct recvwork; + unsigned long flags; /* ISCSI_CONN_FLAGs */ /* negotiated params */ unsigned max_recv_dlength; /* initiator_max_recv_dsl*/ @@ -371,7 +383,6 @@ struct iscsi_host { int state; struct workqueue_struct *workq; - char workq_name[20]; }; /* @@ -399,7 +410,7 @@ extern int iscsi_host_add(struct Scsi_Host *shost, struct device *pdev); extern struct Scsi_Host *iscsi_host_alloc(struct scsi_host_template *sht, int dd_data_size, bool xmit_can_sleep); -extern void iscsi_host_remove(struct Scsi_Host *shost); +extern void iscsi_host_remove(struct Scsi_Host *shost, bool is_shutdown); extern void iscsi_host_free(struct Scsi_Host *shost); extern int iscsi_target_alloc(struct scsi_target *starget); extern int iscsi_host_get_max_scsi_cmds(struct Scsi_Host *shost, @@ -440,8 +451,10 @@ extern int iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn, extern int iscsi_conn_get_addr_param(struct sockaddr_storage *addr, enum iscsi_param param, char *buf); extern void iscsi_suspend_tx(struct iscsi_conn *conn); +extern void iscsi_suspend_rx(struct iscsi_conn *conn); extern void iscsi_suspend_queue(struct iscsi_conn *conn); -extern void iscsi_conn_queue_work(struct iscsi_conn *conn); +extern void iscsi_conn_queue_xmit(struct iscsi_conn *conn); +extern void iscsi_conn_queue_recv(struct iscsi_conn *conn); #define iscsi_conn_printk(prefix, _c, fmt, a...) \ iscsi_cls_conn_printk(prefix, ((struct iscsi_conn *)_c)->cls_conn, \ @@ -466,7 +479,7 @@ extern struct iscsi_task *iscsi_itt_to_task(struct iscsi_conn *, itt_t); extern void iscsi_requeue_task(struct iscsi_task *task); extern void iscsi_put_task(struct iscsi_task *task); extern void __iscsi_put_task(struct iscsi_task *task); -extern void __iscsi_get_task(struct iscsi_task *task); +extern bool iscsi_get_task(struct iscsi_task *task); extern void iscsi_complete_scsi_task(struct iscsi_task *task, uint32_t exp_cmdsn, uint32_t max_cmdsn); |