1 files changed, 44 insertions, 3 deletions

diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index bf8f52965675..5994bcc1b017 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -37,6 +37,8 @@ struct iscsi_cls_conn;
 struct iscsi_conn;
 struct iscsi_task;
 struct sockaddr;
+struct iscsi_iface;
+struct bsg_job;
 
 /**
  * struct iscsi_transport - iSCSI Transport template
@@ -84,9 +86,7 @@ struct iscsi_transport {
         struct module *owner;
         char *name;
         unsigned int caps;
-        /* LLD sets this to indicate what values it can export to sysfs */
-        uint64_t param_mask;
-        uint64_t host_param_mask;
+
         struct iscsi_cls_session *(*create_session) (struct iscsi_endpoint *ep,
                                         uint16_t cmds_max, uint16_t qdepth,
                                         uint32_t sn);
@@ -137,6 +137,13 @@ struct iscsi_transport {
         int (*tgt_dscvr) (struct Scsi_Host *shost, enum iscsi_tgt_dscvr type,
                           uint32_t enable, struct sockaddr *dst_addr);
         int (*set_path) (struct Scsi_Host *shost, struct iscsi_path *params);
+        int (*set_iface_param) (struct Scsi_Host *shost, void *data,
+                                uint32_t len);
+        int (*get_iface_param) (struct iscsi_iface *iface,
+                                enum iscsi_param_type param_type,
+                                int param, char *buf);
+        mode_t (*attr_is_visible)(int param_type, int param);
+        int (*bsg_request)(struct bsg_job *job);
 };
 
 /*
@@ -150,6 +157,8 @@ extern int iscsi_unregister_transport(struct iscsi_transport *tt);
  */
 extern void iscsi_conn_error_event(struct iscsi_cls_conn *conn,
                                    enum iscsi_err error);
+extern void iscsi_conn_login_event(struct iscsi_cls_conn *conn,
+                                   enum iscsi_conn_state state);
 extern int iscsi_recv_pdu(struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr,
                           char *data, uint32_t data_size);
 
@@ -171,6 +180,9 @@ struct iscsi_cls_conn {
 #define iscsi_dev_to_conn(_dev) \
         container_of(_dev, struct iscsi_cls_conn, dev)
 
+#define transport_class_to_conn(_cdev) \
+        iscsi_dev_to_conn(_cdev->parent)
+
 #define iscsi_conn_to_session(_conn) \
         iscsi_dev_to_session(_conn->dev.parent)
 
@@ -197,6 +209,7 @@ struct iscsi_cls_session {
         struct delayed_work recovery_work;
 
         unsigned int target_id;
+        bool ida_used;
 
         int state;
         int sid;                                /* session id */
@@ -207,6 +220,9 @@ struct iscsi_cls_session {
 #define iscsi_dev_to_session(_dev) \
         container_of(_dev, struct iscsi_cls_session, dev)
 
+#define transport_class_to_session(_cdev) \
+        iscsi_dev_to_session(_cdev->parent)
+
 #define iscsi_session_to_shost(_session) \
         dev_to_shost(_session->dev.parent)
 
@@ -216,8 +232,12 @@ struct iscsi_cls_session {
 struct iscsi_cls_host {
         atomic_t nr_scans;
         struct mutex mutex;
+        struct request_queue *bsg_q;
 };
 
+#define iscsi_job_to_shost(_job) \
+        dev_to_shost(_job->dev)
+
 extern void iscsi_host_for_each_session(struct Scsi_Host *shost,
                                 void (*fn)(struct iscsi_cls_session *));
 
@@ -228,6 +248,20 @@ struct iscsi_endpoint {
         struct iscsi_cls_conn *conn;
 };
 
+struct iscsi_iface {
+        struct device dev;
+        struct iscsi_transport *transport;
+        uint32_t iface_type;    /* IPv4 or IPv6 */
+        uint32_t iface_num;     /* iface number, 0 - n */
+        void *dd_data;          /* LLD private data */
+};
+
+#define iscsi_dev_to_iface(_dev) \
+        container_of(_dev, struct iscsi_iface, dev)
+
+#define iscsi_iface_to_shost(_iface) \
+        dev_to_shost(_iface->dev.parent)
+
 /*
  * session and connection functions that can be used by HW iSCSI LLDs
  */
@@ -238,6 +272,7 @@ struct iscsi_endpoint {
         dev_printk(prefix, &(_cls_conn)->dev, fmt, ##a)
 
 extern int iscsi_session_chkready(struct iscsi_cls_session *session);
+extern int iscsi_is_session_online(struct iscsi_cls_session *session);
 extern struct iscsi_cls_session *iscsi_alloc_session(struct Scsi_Host *shost,
                                 struct iscsi_transport *transport, int dd_size);
 extern int iscsi_add_session(struct iscsi_cls_session *session,
@@ -261,5 +296,11 @@ extern struct iscsi_endpoint *iscsi_create_endpoint(int dd_size);
 extern void iscsi_destroy_endpoint(struct iscsi_endpoint *ep);
 extern struct iscsi_endpoint *iscsi_lookup_endpoint(u64 handle);
 extern int iscsi_block_scsi_eh(struct scsi_cmnd *cmd);
+extern struct iscsi_iface *iscsi_create_iface(struct Scsi_Host *shost,
+                                              struct iscsi_transport *t,
+                                              uint32_t iface_type,
+                                              uint32_t iface_num, int dd_size);
+extern void iscsi_destroy_iface(struct iscsi_iface *iface);
+extern struct iscsi_iface *iscsi_lookup_iface(int handle);
 
 #endif