1 files changed, 26 insertions, 0 deletions

diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index 9fcce7cd367..e1f210a173a 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -37,6 +37,7 @@ struct iscsi_cls_conn;
 struct iscsi_conn;
 struct iscsi_task;
 struct sockaddr;
+struct iscsi_iface;
 
 /**
  * struct iscsi_transport - iSCSI Transport template
@@ -87,6 +88,8 @@ struct iscsi_transport {
         /* LLD sets this to indicate what values it can export to sysfs */
         uint64_t param_mask;
         uint64_t host_param_mask;
+        uint64_t iface_param_mask;
+
         struct iscsi_cls_session *(*create_session) (struct iscsi_endpoint *ep,
                                         uint16_t cmds_max, uint16_t qdepth,
                                         uint32_t sn);
@@ -138,6 +141,9 @@ struct iscsi_transport {
                           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, char *data, int count);
+        int (*get_iface_param) (struct iscsi_iface *iface,
+                                enum iscsi_param_type param_type,
+                                int param, char *buf);
 };
 
 /*
@@ -229,6 +235,20 @@ 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
  */
@@ -262,5 +282,11 @@ 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