freebsd-skq/sys/cam/cam_xpt_periph.h
mav 1e43e695b7 Remove droping topology mutex after iterating 100 periphs in CAMGETPASSTHRU.
That is not so slow and so often operation to handle unneeded otherwise
xsoftc.xpt_generation and respective locking complications.
2013-08-07 11:34:20 +00:00

53 lines
2.1 KiB
C

/*-
* Data structures and definitions for dealing with the
* Common Access Method Transport (xpt) layer from peripheral
* drivers.
*
* Copyright (c) 1997 Justin T. Gibbs.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _CAM_CAM_XPT_PERIPH_H
#define _CAM_CAM_XPT_PERIPH_H 1
#include <cam/cam_queue.h>
#include <cam/cam_xpt.h>
/* Functions accessed by the peripheral drivers */
#ifdef _KERNEL
void xpt_polled_action(union ccb *ccb);
void xpt_release_ccb(union ccb *released_ccb);
void xpt_schedule(struct cam_periph *perph, u_int32_t new_priority);
int32_t xpt_add_periph(struct cam_periph *periph);
void xpt_remove_periph(struct cam_periph *periph);
void xpt_announce_periph(struct cam_periph *periph,
char *announce_string);
void xpt_announce_quirks(struct cam_periph *periph,
int quirks, char *bit_string);
#endif
#endif /* _CAM_CAM_XPT_PERIPH_H */