Module Name: src
Committed By: tsutsui
Date: Sat Feb 17 17:41:43 UTC 2024
Modified Files:
src/sys/arch/vax/vsa: ncr.c vsbus.c
Log Message:
Fix SCSI tranfer corruption on VAXstation 3100/m30 (KA420) on netboot.
See my post on port-vax@ for details:
https://mail-index.netbsd.org/port-vax/2024/02/16/msg004866.html
and "go ahead!" from ragge@. Should be pulled up to netbsd-10 and -9.
To generate a diff of this commit:
cvs rdiff -u -r1.51 -r1.52 src/sys/arch/vax/vsa/ncr.c
cvs rdiff -u -r1.68 -r1.69 src/sys/arch/vax/vsa/vsbus.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/vax/vsa/ncr.c
diff -u src/sys/arch/vax/vsa/ncr.c:1.51 src/sys/arch/vax/vsa/ncr.c:1.52
--- src/sys/arch/vax/vsa/ncr.c:1.51 Wed Dec 20 15:34:46 2023
+++ src/sys/arch/vax/vsa/ncr.c Sat Feb 17 17:41:43 2024
@@ -1,4 +1,4 @@
-/* $NetBSD: ncr.c,v 1.51 2023/12/20 15:34:46 thorpej Exp $ */
+/* $NetBSD: ncr.c,v 1.52 2024/02/17 17:41:43 tsutsui Exp $ */
/*-
* Copyright (c) 1996 The NetBSD Foundation, Inc.
@@ -42,7 +42,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ncr.c,v 1.51 2023/12/20 15:34:46 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ncr.c,v 1.52 2024/02/17 17:41:43 tsutsui Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -66,6 +66,7 @@ __KERNEL_RCSID(0, "$NetBSD: ncr.c,v 1.51
#include <machine/sid.h>
#include <machine/scb.h>
#include <machine/clock.h>
+#include <machine/ka420.h>
#include "ioconf.h"
@@ -208,6 +209,16 @@ si_vsbus_attach(device_t parent, device_
else
target = (clk_page[0xbc/2] >> tweak) & 7;
+ /*
+ * Explicitly enable upto 128KB "Big DMA" on KA420.
+ * (It looks KA420 firmware doesn't enable it on network boot)
+ */
+#define STC_MODE_OFF (KA420_STC_MODE - KA420_SCS_BASE)
+ if (vax_boardtype == VAX_BTYP_420) {
+ bus_space_write_1(ncr_sc->sc_regt, ncr_sc->sc_regh,
+ STC_MODE_OFF, 1);
+ }
+
aprint_normal("\n");
aprint_normal_dev(self, "NCR5380, SCSI ID %d\n", target);
Index: src/sys/arch/vax/vsa/vsbus.c
diff -u src/sys/arch/vax/vsa/vsbus.c:1.68 src/sys/arch/vax/vsa/vsbus.c:1.69
--- src/sys/arch/vax/vsa/vsbus.c:1.68 Mon Dec 12 18:22:32 2022
+++ src/sys/arch/vax/vsa/vsbus.c Sat Feb 17 17:41:43 2024
@@ -1,4 +1,4 @@
-/* $NetBSD: vsbus.c,v 1.68 2022/12/12 18:22:32 jakllsch Exp $ */
+/* $NetBSD: vsbus.c,v 1.69 2024/02/17 17:41:43 tsutsui Exp $ */
/*
* Copyright (c) 1996, 1999 Ludd, University of Lule}, Sweden.
* All rights reserved.
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: vsbus.c,v 1.68 2022/12/12 18:22:32 jakllsch Exp $");
+__KERNEL_RCSID(0, "$NetBSD: vsbus.c,v 1.69 2024/02/17 17:41:43 tsutsui Exp $");
#include "opt_cputype.h"
@@ -146,7 +146,6 @@ vsbus_attach(device_t parent, device_t s
} else {
dbase = KA420_DMA_BASE;
dsize = KA420_DMA_SIZE;
- *(volatile char *)(sc->sc_vsregs + 0xe0) = 1; /* Big DMA */
}
sc->sc_dmasize = dsize;
sc->sc_dmaaddr = uvm_km_alloc(kernel_map, dsize, 0,
