92 lines
3.3 KiB
C
92 lines
3.3 KiB
C
/*
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* FiberChannel transport specific attributes exported to sysfs.
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*
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* Copyright (c) 2003 Silicon Graphics, Inc. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef SCSI_TRANSPORT_FC_H
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#define SCSI_TRANSPORT_FC_H
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#include <linux/config.h>
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struct scsi_transport_template;
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struct fc_starget_attrs { /* aka fc_target_attrs */
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int port_id;
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uint64_t node_name;
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uint64_t port_name;
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uint32_t dev_loss_tmo; /* Remote Port loss timeout in seconds. */
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struct timer_list dev_loss_timer;
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};
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#define fc_starget_port_id(x) \
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(((struct fc_starget_attrs *)&(x)->starget_data)->port_id)
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#define fc_starget_node_name(x) \
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(((struct fc_starget_attrs *)&(x)->starget_data)->node_name)
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#define fc_starget_port_name(x) \
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(((struct fc_starget_attrs *)&(x)->starget_data)->port_name)
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#define fc_starget_dev_loss_tmo(x) \
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(((struct fc_starget_attrs *)&(x)->starget_data)->dev_loss_tmo)
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#define fc_starget_dev_loss_timer(x) \
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(((struct fc_starget_attrs *)&(x)->starget_data)->dev_loss_timer)
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struct fc_host_attrs {
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uint32_t link_down_tmo; /* Link Down timeout in seconds. */
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struct timer_list link_down_timer;
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};
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#define fc_host_link_down_tmo(x) \
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(((struct fc_host_attrs *)(x)->shost_data)->link_down_tmo)
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#define fc_host_link_down_timer(x) \
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(((struct fc_host_attrs *)(x)->shost_data)->link_down_timer)
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/* The functions by which the transport class and the driver communicate */
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struct fc_function_template {
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void (*get_starget_port_id)(struct scsi_target *);
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void (*get_starget_node_name)(struct scsi_target *);
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void (*get_starget_port_name)(struct scsi_target *);
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void (*get_starget_dev_loss_tmo)(struct scsi_target *);
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void (*set_starget_dev_loss_tmo)(struct scsi_target *, uint32_t);
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void (*get_host_link_down_tmo)(struct Scsi_Host *);
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void (*set_host_link_down_tmo)(struct Scsi_Host *, uint32_t);
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/*
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* The driver sets these to tell the transport class it
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* wants the attributes displayed in sysfs. If the show_ flag
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* is not set, the attribute will be private to the transport
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* class
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*/
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unsigned long show_starget_port_id:1;
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unsigned long show_starget_node_name:1;
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unsigned long show_starget_port_name:1;
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unsigned long show_starget_dev_loss_tmo:1;
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unsigned long show_host_link_down_tmo:1;
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/* Private Attributes */
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};
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struct scsi_transport_template *fc_attach_transport(struct fc_function_template *);
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void fc_release_transport(struct scsi_transport_template *);
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int fc_target_block(struct scsi_target *starget);
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void fc_target_unblock(struct scsi_target *starget);
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int fc_host_block(struct Scsi_Host *shost);
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void fc_host_unblock(struct Scsi_Host *shost);
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#endif /* SCSI_TRANSPORT_FC_H */
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