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.
