[SCSI] Host protection capabilities

[safe/jmp/linux-2.6] / include / scsi / scsi_transport.h

diff --git a/include/scsi/scsi_transport.h b/include/scsi/scsi_transport.h
index a4f1837..490bd13 100644 (file)
--- a/include/scsi/scsi_transport.h
+++ b/include/scsi/scsi_transport.h
@@ -22,6 +22,7 @@
 
 #include <linux/transport_class.h>
 #include <scsi/scsi_host.h>
+#include <scsi/scsi_device.h>
 
 struct scsi_transport_template {
        /* the attribute containers */
@@ -29,6 +30,11 @@ struct scsi_transport_template {
        struct transport_container target_attrs;
        struct transport_container device_attrs;
 
+       /*
+        * If set, called from sysfs and legacy procfs rescanning code.
+        */
+       int (*user_scan)(struct Scsi_Host *, uint, uint, uint);
+
        /* The size of the specific transport attribute structure (a
         * space of this size will be left at the end of the
         * scsi_* structure */
@@ -43,10 +49,38 @@ struct scsi_transport_template {
         * True if the transport wants to use a host-based work-queue
         */
        unsigned int create_work_queue : 1;
+
+       /*
+        * Allows a transport to override the default error handler.
+        */
+       void (* eh_strategy_handler)(struct Scsi_Host *);
+
+       /*
+        * This is an optional routine that allows the transport to become
+        * involved when a scsi io timer fires. The return value tells the
+        * timer routine how to finish the io timeout handling:
+        * EH_HANDLED:          I fixed the error, please complete the command
+        * EH_RESET_TIMER:      I need more time, reset the timer and
+        *                      begin counting again
+        * EH_NOT_HANDLED       Begin normal error recovery
+        */
+       enum scsi_eh_timer_return (* eh_timed_out)(struct scsi_cmnd *);
+
+       /*
+        * Used as callback for the completion of i_t_nexus request
+        * for target drivers.
+        */
+       int (* it_nexus_response)(struct Scsi_Host *, u64, int);
+
+       /*
+        * Used as callback for the completion of task management
+        * request for target drivers.
+        */
+       int (* tsk_mgmt_response)(struct Scsi_Host *, u64, u64, int);
 };
 
 #define transport_class_to_shost(tc) \
-       dev_to_shost((tc)->dev)
+       dev_to_shost((tc)->parent)
 
 
 /* Private area maintenance. The driver requested allocations come