include/scsi/scsi_transport_fc.h

   1 /*
   2  *  FiberChannel transport specific attributes exported to sysfs.
   3  *
   4  *  Copyright (c) 2003 Silicon Graphics, Inc.  All rights reserved.
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20 #ifndef SCSI_TRANSPORT_FC_H
  21 #define SCSI_TRANSPORT_FC_H
  22
  23 #include <linux/config.h>
  24
  25 struct scsi_transport_template;
  26
  27 struct fc_transport_attrs {
  28         int port_id;
  29         uint64_t node_name;
  30         uint64_t port_name;
  31 };
  32
  33 /* accessor functions */
  34 #define fc_port_id(x)   (((struct fc_transport_attrs *)&(x)->transport_data)->port_id)
  35 #define fc_node_name(x) (((struct fc_transport_attrs *)&(x)->transport_data)->node_name)
  36 #define fc_port_name(x) (((struct fc_transport_attrs *)&(x)->transport_data)->port_name)
  37
  38 /* The functions by which the transport class and the driver communicate */
  39 struct fc_function_template {
  40         void    (*get_port_id)(struct scsi_device *);
  41         void    (*get_node_name)(struct scsi_device *);
  42         void    (*get_port_name)(struct scsi_device *);
  43         /* The driver sets these to tell the transport class it
  44          * wants the attributes displayed in sysfs.  If the show_ flag
  45          * is not set, the attribute will be private to the transport
  46          * class */
  47         unsigned long   show_port_id:1;
  48         unsigned long   show_node_name:1;
  49         unsigned long   show_port_name:1;
  50         /* Private Attributes */
  51 };
  52
  53 struct scsi_transport_template *fc_attach_transport(struct fc_function_template *);
  54 void fc_release_transport(struct scsi_transport_template *);
  55
  56 #endif /* SCSI_TRANSPORT_FC_H */