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NAME	SIZE	ACTIONS
📁 fc		[ DEL ]
📄 fc_frame.h	7,819 B	[ EDIT ] \| [ DEL ]
📄 fcoe_sysfs.h	3,843 B	[ EDIT ] \| [ DEL ]
📄 iscsi_if.h	26,213 B	[ EDIT ] \| [ DEL ]
📄 iscsi_proto.h	15,907 B	[ EDIT ] \| [ DEL ]
📄 iser.h	2,397 B	[ EDIT ] \| [ DEL ]
📄 libfc.h	31,676 B	[ EDIT ] \| [ DEL ]
📄 libfcoe.h	13,693 B	[ EDIT ] \| [ DEL ]
📄 libiscsi.h	14,612 B	[ EDIT ] \| [ DEL ]
📄 libiscsi_tcp.h	3,886 B	[ EDIT ] \| [ DEL ]
📄 libsas.h	19,047 B	[ EDIT ] \| [ DEL ]
📄 osd_attributes.h	15,411 B	[ EDIT ] \| [ DEL ]
📄 osd_protocol.h	17,989 B	[ EDIT ] \| [ DEL ]
📄 osd_sec.h	1,520 B	[ EDIT ] \| [ DEL ]
📄 osd_sense.h	10,126 B	[ EDIT ] \| [ DEL ]
📄 osd_types.h	1,020 B	[ EDIT ] \| [ DEL ]
📄 sas.h	13,533 B	[ EDIT ] \| [ DEL ]
📄 sas_ata.h	2,800 B	[ EDIT ] \| [ DEL ]
📄 scsi.h	9,137 B	[ EDIT ] \| [ DEL ]
📄 scsi_bsg_iscsi.h	2,204 B	[ EDIT ] \| [ DEL ]
📄 scsi_cmnd.h	11,557 B	[ EDIT ] \| [ DEL ]
📄 scsi_common.h	2,160 B	[ EDIT ] \| [ DEL ]
📄 scsi_dbg.h	2,132 B	[ EDIT ] \| [ DEL ]
📄 scsi_device.h	22,778 B	[ EDIT ] \| [ DEL ]
📄 scsi_devinfo.h	3,869 B	[ EDIT ] \| [ DEL ]
📄 scsi_dh.h	3,242 B	[ EDIT ] \| [ DEL ]
📄 scsi_driver.h	897 B	[ EDIT ] \| [ DEL ]
📄 scsi_eh.h	1,702 B	[ EDIT ] \| [ DEL ]
📄 scsi_host.h	29,012 B	[ EDIT ] \| [ DEL ]
📄 scsi_ioctl.h	1,285 B	[ EDIT ] \| [ DEL ]
📄 scsi_proto.h	11,559 B	[ EDIT ] \| [ DEL ]
📄 scsi_request.h	667 B	[ EDIT ] \| [ DEL ]
📄 scsi_tcq.h	993 B	[ EDIT ] \| [ DEL ]
📄 scsi_transport.h	2,610 B	[ EDIT ] \| [ DEL ]
📄 scsi_transport_fc.h	28,769 B	[ EDIT ] \| [ DEL ]
📄 scsi_transport_iscsi.h	17,659 B	[ EDIT ] \| [ DEL ]
📄 scsi_transport_sas.h	7,035 B	[ EDIT ] \| [ DEL ]
📄 scsi_transport_spi.h	6,682 B	[ EDIT ] \| [ DEL ]
📄 scsi_transport_srp.h	4,883 B	[ EDIT ] \| [ DEL ]
📄 scsicam.h	636 B	[ EDIT ] \| [ DEL ]
📄 sg.h	12,421 B	[ EDIT ] \| [ DEL ]
📄 srp.h	7,226 B	[ EDIT ] \| [ DEL ]
📄 viosrp.h	6,212 B	[ EDIT ] \| [ DEL ]

[ CLOSE ]

EDIT: scsi_dh.h

/*
 * Header file for SCSI device handler infrastructure.
 *
 * Modified version of patches posted by Mike Christie <michaelc@cs.wisc.edu>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 * Copyright IBM Corporation, 2007
 *      Authors:
 *               Chandra Seetharaman <sekharan@us.ibm.com>
 *               Mike Anderson <andmike@linux.vnet.ibm.com>
 */

#include <scsi/scsi_device.h>

enum {
	SCSI_DH_OK = 0,
	/*
	 * device errors
	 */
	SCSI_DH_DEV_FAILED,	/* generic device error */
	SCSI_DH_DEV_TEMP_BUSY,
	SCSI_DH_DEV_UNSUPP,	/* device handler not supported */
	SCSI_DH_DEVICE_MAX,	/* max device blkerr definition */

/*
	 * transport errors
	 */
	SCSI_DH_NOTCONN = SCSI_DH_DEVICE_MAX + 1,
	SCSI_DH_CONN_FAILURE,
	SCSI_DH_TRANSPORT_MAX,	/* max transport blkerr definition */

/*
	 * driver and generic errors
	 */
	SCSI_DH_IO = SCSI_DH_TRANSPORT_MAX + 1,	/* generic error */
	SCSI_DH_INVALID_IO,
	SCSI_DH_RETRY,		/* retry the req, but not immediately */
	SCSI_DH_IMM_RETRY,	/* immediately retry the req */
	SCSI_DH_TIMED_OUT,
	SCSI_DH_RES_TEMP_UNAVAIL,
	SCSI_DH_DEV_OFFLINED,
	SCSI_DH_NOMEM,
	SCSI_DH_NOSYS,
	SCSI_DH_DRIVER_MAX,
};

typedef void (*activate_complete)(void *, int);
struct scsi_device_handler {
	/* Used by the infrastructure */
	struct list_head list; /* list of scsi_device_handlers */

/* Filled by the hardware handler */
	struct module *module;
	const char *name;
	int (*check_sense)(struct scsi_device *, struct scsi_sense_hdr *);
	int (*attach)(struct scsi_device *);
	void (*detach)(struct scsi_device *);
	int (*activate)(struct scsi_device *, activate_complete, void *);
	blk_status_t (*prep_fn)(struct scsi_device *, struct request *);
	int (*set_params)(struct scsi_device *, const char *);
	void (*rescan)(struct scsi_device *);
};

#ifdef CONFIG_SCSI_DH
extern int scsi_dh_activate(struct request_queue *, activate_complete, void *);
extern int scsi_dh_attach(struct request_queue *, const char *);
extern const char *scsi_dh_attached_handler_name(struct request_queue *, gfp_t);
extern int scsi_dh_set_params(struct request_queue *, const char *);
#else
static inline int scsi_dh_activate(struct request_queue *req,
					activate_complete fn, void *data)
{
	fn(data, 0);
	return 0;
}
static inline int scsi_dh_attach(struct request_queue *req, const char *name)
{
	return SCSI_DH_NOSYS;
}
static inline const char *scsi_dh_attached_handler_name(struct request_queue *q,
							gfp_t gfp)
{
	return NULL;
}
static inline int scsi_dh_set_params(struct request_queue *req, const char *params)
{
	return -SCSI_DH_NOSYS;
}
#endif