PR/58767 CVS commit: src/sys

["Jonathan A. Kollasch" <jakllsch%netbsd.org@localhost>]

The following reply was made to PR kern/58767; it has been noted by GNATS.

From: "Jonathan A. Kollasch" <jakllsch%netbsd.org@localhost>
To: gnats-bugs%gnats.NetBSD.org@localhost
Cc: 
Subject: PR/58767 CVS commit: src/sys
Date: Mon, 17 Feb 2025 19:01:05 +0000

 Module Name:	src
 Committed By:	jakllsch
 Date:		Mon Feb 17 19:01:04 UTC 2025
 
 Modified Files:
 	src/sys/arch/i386/conf: LEGACY
 	src/sys/dev/ata: ata.c files.ata
 
 Log Message:
 Restore ATA DMA mode downgrade support everywhere; it's a necessary part
 of any system supporting (parallel) ATA DMA.  There is hardware out there,
 including cobalt, macppc, and sparc64 where this functionality is
 necessary to avoid non-functional disks, either in as-shipped hardware
 configurations or with add-in cards, or perhaps just with compromised
 IDE/PATA cables.
 
 Should address:
   PR 58767
   PR 59023
   PR 59078
 
 If anyone really insists on not having this support they can now turn it
 off themselves with `options ATA_NO_DOWNGRADE_MODE`
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.4 -r1.5 src/sys/arch/i386/conf/LEGACY
 cvs rdiff -u -r1.170 -r1.171 src/sys/dev/ata/ata.c
 cvs rdiff -u -r1.32 -r1.33 src/sys/dev/ata/files.ata
 
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.