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| author | John Dyson <dyson@FreeBSD.org> | 1998-01-24 02:01:46 +0000 |
|---|---|---|
| committer | John Dyson <dyson@FreeBSD.org> | 1998-01-24 02:01:46 +0000 |
| commit | 50ce7ff49929eaaecbef85e15eae9b782ab8934d (patch) | |
| tree | b4368902b3d24f69c6f8a382294adaa35bf79abb /sys/i386/include | |
| parent | 4147817ab937c6e335d73c73b5b182a995b9f29a (diff) | |
| download | src-50ce7ff49929eaaecbef85e15eae9b782ab8934d.tar.gz src-50ce7ff49929eaaecbef85e15eae9b782ab8934d.zip | |
Add better support for larger I/O clusters, including larger physical
I/O. The support is not mature yet, and some of the underlying implementation
needs help. However, support does exist for IDE devices now.
Notes
Notes:
svn path=/head/; revision=32724
Diffstat (limited to 'sys/i386/include')
| -rw-r--r-- | sys/i386/include/param.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/i386/include/param.h b/sys/i386/include/param.h index 2e8c63749a8f..db3af036b7e7 100644 --- a/sys/i386/include/param.h +++ b/sys/i386/include/param.h @@ -34,7 +34,7 @@ * SUCH DAMAGE. * * from: @(#)param.h 5.8 (Berkeley) 6/28/91 - * $Id: param.h,v 1.16 1997/08/30 01:22:01 smp Exp smp $ + * $Id: param.h,v 1.41 1997/08/30 08:07:50 fsmp Exp $ */ #ifndef _MACHINE_PARAM_H_ @@ -76,7 +76,8 @@ #define DEV_BSIZE (1<<DEV_BSHIFT) #define BLKDEV_IOSIZE 2048 -#define MAXPHYS (64 * 1024) /* max raw I/O transfer size */ +#define DFLTPHYS (64 * 1024) /* default max raw I/O transfer size */ +#define MAXPHYS (128 * 1024) /* max raw I/O transfer size */ #define IOPAGES 2 /* pages of i/o permission bitmap */ #define UPAGES 2 /* pages of u-area */ |