PR/24883 CVS commit: src/sys/arch/mac68k

["Rin Okuyama" <rin%netbsd.org@localhost>]

The following reply was made to PR port-mac68k/24883; it has been noted by GNATS.

From: "Rin Okuyama" <rin%netbsd.org@localhost>
To: gnats-bugs%gnats.NetBSD.org@localhost
Cc: 
Subject: PR/24883 CVS commit: src/sys/arch/mac68k
Date: Tue, 23 Jul 2019 15:19:07 +0000

 Module Name:	src
 Committed By:	rin
 Date:		Tue Jul 23 15:19:07 UTC 2019
 
 Modified Files:
 	src/sys/arch/mac68k/include: psc.h
 	src/sys/arch/mac68k/mac68k: psc.c
 	src/sys/arch/mac68k/obio: esp.c espvar.h
 
 Log Message:
 PR port-mac68k/24883
 
 Support DMA xfer for SCSI adapter of AV Mac (660/840AV), written by
 Michael Zucca.
 
 This improves disk I/O performance by nearly one order of magnitude.
 In addition, interrupt storm due to heavy disk PIO is resolved.
 
 I'm deeply grateful to Michael Zucca for his analysis of DMA engine
 and submission of PR. I also thank Izumi Tsutsui (useful comments on
 port-mac68k@) and Martin Husemann (test on 660AV).
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.7 -r1.8 src/sys/arch/mac68k/include/psc.h
 cvs rdiff -u -r1.10 -r1.11 src/sys/arch/mac68k/mac68k/psc.c
 cvs rdiff -u -r1.57 -r1.58 src/sys/arch/mac68k/obio/esp.c
 cvs rdiff -u -r1.8 -r1.9 src/sys/arch/mac68k/obio/espvar.h
 
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.