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Add in missing files from r298002.

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imp 2016-04-14 22:13:44 +00:00
parent b8bfec12ef
commit 3502a60d3c
2 changed files with 1663 additions and 0 deletions
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1599
sys/cam/cam_iosched.c Normal file
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sys/cam/cam_iosched.h Normal file
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/*-
* CAM IO Scheduler Interface
*
* Copyright (c) 2015 Netflix, Inc.
* 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_IOSCHED_H
#define _CAM_CAM_IOSCHED_H
/* No user-servicable parts in here. */
#ifdef _KERNEL
/* Forward declare all structs to keep interface thin */
struct cam_iosched_softc;
struct sysctl_ctx_list;
struct sysctl_oid;
union ccb;
struct bio;
int cam_iosched_init(struct cam_iosched_softc **, struct cam_periph *periph);
void cam_iosched_fini(struct cam_iosched_softc *);
void cam_iosched_sysctl_init(struct cam_iosched_softc *, struct sysctl_ctx_list *, struct sysctl_oid *);
struct bio *cam_iosched_next_trim(struct cam_iosched_softc *isc);
struct bio *cam_iosched_get_trim(struct cam_iosched_softc *isc);
struct bio *cam_iosched_next_bio(struct cam_iosched_softc *isc);
void cam_iosched_queue_work(struct cam_iosched_softc *isc, struct bio *bp);
void cam_iosched_flush(struct cam_iosched_softc *isc, struct devstat *stp, int err);
void cam_iosched_schedule(struct cam_iosched_softc *isc, struct cam_periph *periph);
void cam_iosched_finish_trim(struct cam_iosched_softc *isc);
void cam_iosched_submit_trim(struct cam_iosched_softc *isc);
void cam_iosched_put_back_trim(struct cam_iosched_softc *isc, struct bio *bp);
void cam_iosched_set_sort_queue(struct cam_iosched_softc *isc, int val);
int cam_iosched_has_work_flags(struct cam_iosched_softc *isc, uint32_t flags);
void cam_iosched_set_work_flags(struct cam_iosched_softc *isc, uint32_t flags);
void cam_iosched_clr_work_flags(struct cam_iosched_softc *isc, uint32_t flags);
void cam_iosched_trim_done(struct cam_iosched_softc *isc);
int cam_iosched_bio_complete(struct cam_iosched_softc *isc, struct bio *bp, union ccb *done_ccb);
#endif
#endif