Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluet...

[linux-2.6-omap-h63xx.git] / include / scsi / libiscsi.h

diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index 9be6a70faff528da32d863be4b10f913b38eb6ed..5e75bb7f311c5b57fbca77fe801ce504dd019d3f 100644 (file)
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -52,9 +52,7 @@ struct device;
 #endif
 
 #define ISCSI_DEF_XMIT_CMDS_MAX        128     /* must be power of 2 */
-#define ISCSI_MGMT_CMDS_MAX    16      /* must be power of 2 */
-
-#define ISCSI_MGMT_ITT_OFFSET  0xa00
+#define ISCSI_MGMT_CMDS_MAX    15
 
 #define ISCSI_DEF_CMD_PER_LUN          32
 #define ISCSI_MAX_CMD_PER_LUN          128
@@ -72,7 +70,10 @@ enum {
 /* Connection suspend "bit" */
 #define ISCSI_SUSPEND_BIT              1
 
-#define ISCSI_ITT_MASK                 (0xfff)
+#define ISCSI_ITT_MASK                 (0x1fff)
+#define ISCSI_TOTAL_CMDS_MAX           4096
+/* this must be a power of two greater than ISCSI_MGMT_CMDS_MAX */
+#define ISCSI_TOTAL_CMDS_MIN           16
 #define ISCSI_AGE_SHIFT                        28
 #define ISCSI_AGE_MASK                 (0xf << ISCSI_AGE_SHIFT)
 
@@ -85,18 +86,6 @@ enum {
        ISCSI_DIGEST_SIZE = sizeof(__u32),
 };
 
-struct iscsi_mgmt_task {
-       /*
-        * Becuae LLDs allocate their hdr differently, this is a pointer to
-        * that storage. It must be setup at session creation time.
-        */
-       struct iscsi_hdr        *hdr;
-       char                    *data;          /* mgmt payload */
-       unsigned                data_count;     /* counts data to be sent */
-       uint32_t                itt;            /* this ITT */
-       void                    *dd_data;       /* driver/transport data */
-       struct list_head        running;
-};
 
 enum {
        ISCSI_TASK_COMPLETED,
@@ -104,7 +93,7 @@ enum {
        ISCSI_TASK_RUNNING,
 };
 
-struct iscsi_cmd_task {
+struct iscsi_task {
        /*
         * Because LLDs allocate their hdr differently, this is a pointer
         * and length to that storage. It must be setup at session
@@ -121,6 +110,7 @@ struct iscsi_cmd_task {
        /* offset in unsolicited stream (bytes); */
        unsigned                unsol_offset;
        unsigned                data_count;     /* remaining Data-Out */
+       char                    *data;          /* mgmt payload */
        struct scsi_cmnd        *sc;            /* associated SCSI cmd*/
        struct iscsi_conn       *conn;          /* used connection    */
 
@@ -131,9 +121,9 @@ struct iscsi_cmd_task {
        void                    *dd_data;       /* driver/transport data */
 };
 
-static inline void* iscsi_next_hdr(struct iscsi_cmd_task *ctask)
+static inline void* iscsi_next_hdr(struct iscsi_task *task)
 {
-       return (void*)ctask->hdr + ctask->hdr_len;
+       return (void*)task->hdr + task->hdr_len;
 }
 
 /* Connection's states */
@@ -148,11 +138,6 @@ struct iscsi_conn {
        struct iscsi_cls_conn   *cls_conn;      /* ptr to class connection */
        void                    *dd_data;       /* iscsi_transport data */
        struct iscsi_session    *session;       /* parent session */
-       /*
-        * LLDs should set this lock. It protects the transport recv
-        * code
-        */
-       rwlock_t                *recv_lock;
        /*
         * conn_stop() flag: stop to recover, stop to terminate
         */
@@ -162,7 +147,7 @@ struct iscsi_conn {
        unsigned long           last_ping;
        int                     ping_timeout;
        int                     recv_timeout;
-       struct iscsi_mgmt_task  *ping_mtask;
+       struct iscsi_task       *ping_task;
 
        /* iSCSI connection-wide sequencing */
        uint32_t                exp_statsn;
@@ -178,9 +163,8 @@ struct iscsi_conn {
         * should always fit in this buffer
         */
        char                    *data;
-       struct iscsi_mgmt_task  *login_mtask;   /* mtask used for login/text */
-       struct iscsi_mgmt_task  *mtask;         /* xmit mtask in progress */
-       struct iscsi_cmd_task   *ctask;         /* xmit ctask in progress */
+       struct iscsi_task       *login_task;    /* mtask used for login/text */
+       struct iscsi_task       *task;          /* xmit task in progress */
 
        /* xmit */
        struct list_head        mgmtqueue;      /* mgmt (control) xmit queue */
@@ -282,6 +266,8 @@ struct iscsi_session {
        char                    *password;
        char                    *password_in;
        char                    *targetname;
+       char                    *ifacename;
+       char                    *initiatorname;
        /* control data */
        struct iscsi_transport  *tt;
        struct Scsi_Host        *host;
@@ -295,12 +281,10 @@ struct iscsi_session {
        int                     state;          /* session state           */
        int                     age;            /* counts session re-opens */
 
+       int                     scsi_cmds_max;  /* max scsi commands */
        int                     cmds_max;       /* size of cmds array */
-       struct iscsi_cmd_task   **cmds;         /* Original Cmds arr */
+       struct iscsi_task       **cmds;         /* Original Cmds arr */
        struct iscsi_pool       cmdpool;        /* PDU's pool */
-       int                     mgmtpool_max;   /* size of mgmt array */
-       struct iscsi_mgmt_task  **mgmt_cmds;    /* Original mgmt arr */
-       struct iscsi_pool       mgmtpool;       /* Mgmt PDU's pool */
 };
 
 struct iscsi_host {
@@ -345,7 +329,7 @@ extern void iscsi_host_free(struct Scsi_Host *shost);
  */
 extern struct iscsi_cls_session *
 iscsi_session_setup(struct iscsi_transport *, struct Scsi_Host *shost,
-                   uint16_t, int, int, uint32_t);
+                   uint16_t, int, uint32_t, unsigned int);
 extern void iscsi_session_teardown(struct iscsi_cls_session *);
 extern void iscsi_session_recovery_timedout(struct iscsi_cls_session *);
 extern int iscsi_set_param(struct iscsi_cls_conn *cls_conn,
@@ -379,17 +363,19 @@ extern void iscsi_suspend_tx(struct iscsi_conn *conn);
  * pdu and task processing
  */
 extern void iscsi_update_cmdsn(struct iscsi_session *, struct iscsi_nopin *);
-extern void iscsi_prep_unsolicit_data_pdu(struct iscsi_cmd_task *,
+extern void iscsi_prep_unsolicit_data_pdu(struct iscsi_task *,
                                        struct iscsi_data *hdr);
 extern int iscsi_conn_send_pdu(struct iscsi_cls_conn *, struct iscsi_hdr *,
                                char *, uint32_t);
 extern int iscsi_complete_pdu(struct iscsi_conn *, struct iscsi_hdr *,
                              char *, int);
+extern int __iscsi_complete_pdu(struct iscsi_conn *, struct iscsi_hdr *,
+                               char *, int);
 extern int iscsi_verify_itt(struct iscsi_conn *, itt_t);
-extern struct iscsi_cmd_task *iscsi_itt_to_ctask(struct iscsi_conn *, itt_t);
-extern void iscsi_requeue_ctask(struct iscsi_cmd_task *ctask);
-extern void iscsi_free_mgmt_task(struct iscsi_conn *conn,
-                                struct iscsi_mgmt_task *mtask);
+extern struct iscsi_task *iscsi_itt_to_ctask(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_get_task(struct iscsi_task *task);
 
 /*
  * generic helpers