sys/dev/disk/mpt/mpt_raid.h

   1 /* $FreeBSD: head/sys/dev/mpt/mpt_raid.h 224494 2011-07-29 18:38:31Z marius $ */
   2 /*-
   3  * Definitions for the integrated RAID features LSI MPT Fusion adapters.
   4  *
   5  * Copyright (c) 2005, WHEEL Sp. z o.o.
   6  * Copyright (c) 2004, 2005 Justin T. Gibbs
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions are
  11  * met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  15  *    substantially similar to the "NO WARRANTY" disclaimer below
  16  *    ("Disclaimer") and any redistribution must be conditioned upon including
  17  *    a substantially similar Disclaimer requirement for further binary
  18  *    redistribution.
  19  * 3. Neither the names of the above listed copyright holders nor the names
  20  *    of any contributors may be used to endorse or promote products derived
  21  *    from this software without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  24  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  27  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  30  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  31  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  32  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF THE COPYRIGHT
  33  * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34  */
  35 /*-
  36  * Some Breakage and Bug Fixing added later.
  37  * Copyright (c) 2006, by Matthew Jacob
  38  * All Rights Reserved
  39  *
  40  * Support from LSI-Logic has also gone a great deal toward making this a
  41  * workable subsystem and is gratefully acknowledged.
  42  */
  43 #ifndef  _MPT_RAID_H_
  44 #define  _MPT_RAID_H_
  45
  46 #include <bus/cam/cam.h>
  47 union ccb;
  48
  49 typedef enum {
  50         MPT_RAID_MWCE_ON,
  51         MPT_RAID_MWCE_OFF,
  52         MPT_RAID_MWCE_REBUILD_ONLY,
  53         MPT_RAID_MWCE_NC
  54 } mpt_raid_mwce_t;
  55
  56 cam_status mpt_map_physdisk(struct mpt_softc *, union ccb *, target_id_t *);
  57 int mpt_is_raid_member(struct mpt_softc *, target_id_t);
  58 int mpt_is_raid_volume(struct mpt_softc *, target_id_t);
  59 #if     0
  60 cam_status
  61 mpt_raid_quiesce_disk(struct mpt_softc *, struct mpt_raid_disk *, request_t *);
  62 #endif
  63
  64 void    mpt_raid_free_mem(struct mpt_softc *);
  65
  66 static __inline void
  67 mpt_raid_wakeup(struct mpt_softc *mpt)
  68 {
  69         mpt->raid_wakeup++;
  70         wakeup(&mpt->raid_volumes);
  71 }
  72
  73 #define MPT_RAID_SYNC_REPORT_INTERVAL (15 * 60 * hz)
  74 #define MPT_RAID_RESYNC_RATE_MAX (255)
  75 #define MPT_RAID_RESYNC_RATE_MIN (1)
  76 #define MPT_RAID_RESYNC_RATE_NC (0)
  77 #define MPT_RAID_RESYNC_RATE_DEFAULT MPT_RAID_RESYNC_RATE_NC
  78
  79 #define MPT_RAID_QUEUE_DEPTH_DEFAULT (128)
  80
  81 #define MPT_RAID_MWCE_DEFAULT MPT_RAID_MWCE_NC
  82
  83 #define RAID_VOL_FOREACH(mpt, mpt_vol)                                  \
  84         for (mpt_vol = (mpt)->raid_volumes;                             \
  85              mpt_vol != (mpt)->raid_volumes + (mpt)->raid_max_volumes;  \
  86              mpt_vol++)
  87
  88 #endif /*_MPT_RAID_H_ */