diff options
author | Theo de Raadt <deraadt@cvs.openbsd.org> | 1996-08-08 16:54:28 +0000 |
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committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 1996-08-08 16:54:28 +0000 |
commit | 781b740f51453310c337cb1ff53f6fdc2f411213 (patch) | |
tree | 903f5679a06ae740aa32484227d54d22f186f3b9 /share | |
parent | 704c4ea3773b5ac0fa883cdd52a2f8de421cd915 (diff) |
balony, we have bounce buffers
Diffstat (limited to 'share')
-rw-r--r-- | share/man/man4/man4.i386/aha.4 | 17 |
1 files changed, 2 insertions, 15 deletions
diff --git a/share/man/man4/man4.i386/aha.4 b/share/man/man4/man4.i386/aha.4 index 0f9b68f4bfb..521b528396a 100644 --- a/share/man/man4/man4.i386/aha.4 +++ b/share/man/man4/man4.i386/aha.4 @@ -45,21 +45,8 @@ driver provides support for the following SCSI adapters: .It Tekram DC-320E .It Tekram DC-380 .El -.Sh BUGS -The -.Nm -driver can not be used on systems with more than 16 megabytes of -memory. -.Pp -Due to the 24 bit addressing limitation of the ISA bus, The SCSI -adapter's onboard DMA controller is unable to access memory with -addresses greater than 16 megabytes. -.Pp -This restriction can be fixed with "bounce buffers", buffers in low -memory which are used whenever data to be transfered to or from the -SCSI adapter is above the 16 megabyte threshold. The data is copied -to the bounce buffer, then copied from the bounce buffer to its -destination. +This driver uses bounce buffers if the machine has more than 16 +megabytes of memory. .Sh SEE ALSO .Xr intro 4 , .Xr sd 4 , |