sys/dev/raid/mlx/mlx_compat.h

   1 /*-
   2  * Copyright (c) 2000, 2001 Michael Smith
   3  * Copyright (c) 2000 BSDi
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  *
  27  * $FreeBSD: src/sys/dev/mlx/mlx_compat.h,v 1.1.2.1 2001/06/25 04:37:51 msmith Exp $
  28  * $DragonFly: src/sys/dev/raid/mlx/mlx_compat.h,v 1.8 2008/06/10 17:20:52 dillon Exp $
  29  */
  30 /*
  31  * Portability and compatibility interfaces.
  32  */
  33
  34 #if defined(__DragonFly__) || __FreeBSD_version < 500003
  35 # include <machine/clock.h>
  36
  37 # include <sys/proc.h>                  /* old buf style */
  38 # include <sys/buf.h>                   /* old buf style */
  39 # include <sys/buf2.h>
  40 typedef struct bio                      mlx_bio;
  41 typedef struct bio_queue_head           mlx_bioq;
  42 #else
  43 # include <sys/bio.h>
  44 typedef struct bio                      mlx_bio;
  45 typedef struct bio_queue_head           mlx_bioq;
  46 # define MLX_BIO_QINIT(bq)              bioq_init(&bq);
  47 # define MLX_BIO_QINSERT(bq, bp)        bioqdisksort(&bq, bp)
  48 # define MLX_BIO_QFIRST(bq)             bioq_first(&bq)
  49 # define MLX_BIO_QREMOVE(bq, bp)        bioq_remove(&bq, bp)
  50 # define MLX_BIO_IS_READ(bp)            ((bp)->bio_cmd == BIO_READ)
  51 # define MLX_BIO_DATA(bp)               (bp)->bio_data
  52 # define MLX_BIO_LENGTH(bp)             (bp)->bio_bcount
  53 # define MLX_BIO_LBA(bp)                (bp)->bio_pblkno
  54 # define MLX_BIO_SOFTC(bp)              (bp)->bio_dev->si_drv1
  55 # define MLX_BIO_UNIT(bp)               *(int *)((bp)->bio_dev->si_drv2)
  56 # define MLX_BIO_SET_ERROR(bp, err)     do { (bp)->bio_error = err; (bp)->bio_flags |= BIO_ERROR;} while(0)
  57 # define MLX_BIO_HAS_ERROR(bp)          ((bp)->bio_flags & BIO_ERROR)
  58 # define MLX_BIO_RESID(bp)              (bp)->bio_resid
  59 # define MLX_BIO_DONE(bp)               biodone(bp)     /* XXX nice to integrate bio_finish here */
  60 # define MLX_BIO_STATS_START(bp)        devstat_start_transaction(&((struct mlxd_softc *)MLX_BIO_SOFTC(bp))->mlxd_stats)
  61 # define MLX_BIO_STATS_END(bp)          devstat_end_transaction_bio(&((struct mlxd_softc *)MLX_BIO_SOFTC(bp))->mlxd_stats, bp)
  62 #endif
  63