From 781b740f51453310c337cb1ff53f6fdc2f411213 Mon Sep 17 00:00:00 2001 From: Theo de Raadt Date: Thu, 8 Aug 1996 16:54:28 +0000 Subject: balony, we have bounce buffers --- share/man/man4/man4.i386/aha.4 | 17 ++--------------- 1 file changed, 2 insertions(+), 15 deletions(-) (limited to 'share/man') 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 , -- cgit v1.2.3