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Date: Thu, 10 Apr 2003 18:16:09 +0930
From: Martin Minkus <diskiller@diskiller.net>
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cc: Matthew Lukaszewicz <matt@lukaszewicz.org>
Subject: No DMA?
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This is on a Cyrix box. Full dmesg output below.

DMA works perfectly fine on this box, under Windows, FreeBSD 4.7,
5.0-RELEASE, but on 5.0-CURRENT it stops working.

I'm not entirely sure when it stops working, I merely cvsup'ed after
installing 5.0-RELEASE a few weeks ago, and it stopped working. I cvsup'ed,
made kernel and made world yesterday, and still no dma.

I am guessing it was turned off on this particular board/ata controller for
a reason.. And perhaps there is some way to override that and turn dma back
on anyway?

Thanks,
Martin.




Copyright (c) 1992-2003 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
    The Regents of the University of California. All rights reserved.
FreeBSD 5.0-CURRENT #2: Sat Mar 29 20:25:04 CST 2003
    root@homer.lukaszewicz.org:/usr/src/sys/i386/compile/HOMER
Preloaded elf kernel "/boot/kernel/kernel" at 0xc0402000.
Timecounter "i8254"  frequency 1193182 Hz
Timecounter "TSC"  frequency 233867044 Hz
CPU: Cyrix 6x86MX (233.87-MHz 686-class CPU)
  Origin = "CyrixInstead"  Id = 0x600  Stepping = 0  DIR=0x0854
  Features=0x80a135<FPU,DE,TSC,MSR,CX8,PGE,CMOV,MMX>
real memory  = 66060288 (63 MB)
avail memory = 59797504 (57 MB)
Allocating major#253 to "net"
Allocating major#252 to "g_ctl"
Allocating major#251 to "pci"
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcibios: BIOS version 2.10
pcib0: <Host to PCI bridge> at pcibus 0 on motherboard
pci0: <PCI bus> on pcib0
isab0: <PCI-ISA bridge> at device 1.0 on pci0
isa0: <ISA bus> on isab0
pci0: <mass storage, ATA> at device 1.1 (no driver attached)
rl0: <RealTek 8139 10/100BaseTX> port 0xf600-0xf6ff mem
0xffadff00-0xffadffff irq 11 at device 13.0 on pci0
rl0: Realtek 8139B detected. Warning, this may be unstable in autoselect
mode
rl0: Ethernet address: 00:c0:26:6f:7c:3a
miibus0: <MII bus> on rl0
rlphy0: <RealTek internal media interface> on miibus0
rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
pci0: <display, VGA> at device 20.0 (no driver attached)
orm0: <Option ROM> at iomem 0xc0000-0xcbfff on isa0
pmtimer0 on isa0
ata0 at port 0x3f6,0x1f0-0x1f7 irq 14 on isa0
ata1 at port 0x376,0x170-0x177 irq 15 on isa0
atkbdc0: <Keyboard controller (i8042)> at port 0x64,0x60 on isa0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
fdc0: ready for input in output
fdc0: cmd 3 failed at out byte 1 of 3
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
ppbus0: <Parallel port bus> on ppc0
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
unknown: <PNP0303> can't assign resources (port)
unknown: <PNP0501> can't assign resources (port)
unknown: <PNP0501> can't assign resources (port)
unknown: <PNP0400> can't assign resources (port)
Timecounters tick every 10.000 msec
ipfw2 initialized, divert disabled, rule-based forwarding enabled, default
to deny, logging unlimited
Allocating major#250 to "devstat"
ad0: 19536MB <ST320423A> [39693/16/63] at ata0-master PIO4
ad1: 78167MB <Maxtor 6Y080L0> [158816/16/63] at ata0-slave PIO4
acd0: CDROM <CD-524EA> at ata1-master PIO3
Mounting root from ufs:/dev/ad0s1a


homer:~> uname -a
FreeBSD homer.lukaszewicz.org 5.0-CURRENT FreeBSD 5.0-CURRENT #2: Sat Mar 29
20:25:04 CST 2003  
root@homer.lukaszewicz.org:/usr/src/sys/i386/compile/HOMER  i386
homer:~> uptime
 6:00PM  up 2 days, 23:53, 3 users, load averages: 0.08, 0.04, 0.00
homer:~> 


*reboot to new kernel and world*


homer:~> dmesg
Copyright (c) 1992-2003 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD 5.0-CURRENT #3: Mon Apr  7 19:55:43 CST 2003
    diskiller@homer.lukaszewicz.org:/usr/src/sys/i386/compile/HOMER
Preloaded elf kernel "/boot/kernel/kernel" at 0xc0403000.
Timecounter "i8254"  frequency 1193182 Hz
Timecounter "TSC"  frequency 233865330 Hz
CPU: Cyrix 6x86MX (233.87-MHz 686-class CPU)
  Origin = "CyrixInstead"  Id = 0x600  Stepping = 0  DIR=0x0854
  Features=0x80a135<FPU,DE,TSC,MSR,CX8,PGE,CMOV,MMX>
real memory  = 66060288 (63 MB)
avail memory = 59793408 (57 MB)
Allocating major#253 to "net"
Allocating major#252 to "g_ctl"
Allocating major#251 to "pci"
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcibios: BIOS version 2.10
pcib0: <Host to PCI bridge> at pcibus 0 on motherboard
pci0: <PCI bus> on pcib0
isab0: <PCI-ISA bridge> at device 1.0 on pci0
isa0: <ISA bus> on isab0
pci0: <mass storage, ATA> at device 1.1 (no driver attached)
rl0: <RealTek 8139 10/100BaseTX> port 0xf600-0xf6ff mem
0xffadff00-0xffadffff irq 11 at device 13.0 on pci0
rl0: Realtek 8139B detected. Warning, this may be unstable in autoselect
mode
rl0: Ethernet address: 00:c0:26:6f:7c:3a
miibus0: <MII bus> on rl0
rlphy0: <RealTek internal media interface> on miibus0
rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
pci0: <display, VGA> at device 20.0 (no driver attached)
orm0: <Option ROM> at iomem 0xc0000-0xcbfff on isa0
pmtimer0 on isa0
ata0 at port 0x3f6,0x1f0-0x1f7 irq 14 on isa0
ata1 at port 0x376,0x170-0x177 irq 15 on isa0
atkbdc0: <Keyboard controller (i8042)> at port 0x64,0x60 on isa0
fdc0: ready for input in output
fdc0: cmd 3 failed at out byte 1 of 3
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
ppbus0: <Parallel port bus> on ppc0
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
unknown: <PNP0303> can't assign resources (port)
unknown: <PNP0501> can't assign resources (port)
unknown: <PNP0501> can't assign resources (port)
unknown: <PNP0400> can't assign resources (port)
Timecounters tick every 10.000 msec
ipfw2 initialized, divert disabled, rule-based forwarding enabled, default
to deny, logging unlimited
Allocating major#250 to "devstat"
ad0: 19536MB <ST320423A> [39693/16/63] at ata0-master PIO4
ad1: 78167MB <Maxtor 6Y080L0> [158816/16/63] at ata0-slave PIO4
acd0: CDROM <CD-524EA> at ata1-master PIO3
Mounting root from ufs:/dev/ad0s1a

homer:~> uptime
 6:10PM  up 3 mins, 2 users, load averages: 0.09, 0.14, 0.07
homer:~> uname -a
FreeBSD homer.lukaszewicz.org 5.0-CURRENT FreeBSD 5.0-CURRENT #3: Mon Apr  7
19:55:43 CST 2003  
diskiller@homer.lukaszewicz.org:/usr/src/sys/i386/compile/HOMER  i386
homer:~> 



Kernel Configuration:

#
# GENERIC -- Generic kernel configuration file for FreeBSD/i386
#
# For more information on this file, please read the handbook section on
# Kernel Configuration Files:
#
#    
http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-confi
g.html
#
# The handbook is also available locally in /usr/share/doc/handbook
# if you've installed the doc distribution, otherwise always see the
# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
# latest information.
#
# An exhaustive list of options and more detailed explanations of the
# device lines is also present in the ../../conf/NOTES and NOTES files.
# If you are in doubt as to the purpose or necessity of a line, check first
# in NOTES.
#
# $FreeBSD: src/sys/i386/conf/GENERIC,v 1.369.2.2 2002/12/31 05:35:45 scottl
Exp $

machine        i386
#cpu        I486_CPU
cpu        I586_CPU
cpu        I686_CPU
ident        HOMER
maxusers    0

#To statically compile in device wiring instead of /boot/device.hints
#hints        "GENERIC.hints"        #Default places to look for devices.

#makeoptions    DEBUG=-g        #Build kernel with gdb(1) debug symbols

options     SCHED_4BSD        #4BSD scheduler
options     INET            #InterNETworking
options     INET6            #IPv6 communications protocols
options     FFS            #Berkeley Fast Filesystem
options     SOFTUPDATES        #Enable FFS soft updates support
options     UFS_ACL            #Support for access control lists
options     UFS_DIRHASH        #Improve performance on big directories
#options     MD_ROOT            #MD is a potential root device
options     NFSCLIENT        #Network Filesystem Client
options     NFSSERVER        #Network Filesystem Server
#options     NFS_ROOT        #NFS usable as root device, requires NFSCLIENT
#options     MSDOSFS            #MSDOS Filesystem
#options     CD9660            #ISO 9660 Filesystem
#options     PROCFS            #Process filesystem (requires PSEUDOFS)
#options     PSEUDOFS        #Pseudo-filesystem framework
options     COMPAT_43        #Compatible with BSD 4.3 [KEEP THIS!]
options     COMPAT_FREEBSD4        #Compatible with FreeBSD4
options     SCSI_DELAY=15000    #Delay (in ms) before probing SCSI
options     KTRACE            #ktrace(1) support
options     SYSVSHM            #SYSV-style shared memory
options     SYSVMSG            #SYSV-style message queues
options     SYSVSEM            #SYSV-style semaphores
options     _KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions
options     KBD_INSTALL_CDEV    # install a CDEV entry in /dev
options     AHC_REG_PRETTY_PRINT    # Print register bitfields in debug
                    # output.  Adds ~128k to driver.
options     AHD_REG_PRETTY_PRINT    # Print register bitfields in debug
                    # output.  Adds ~215k to driver.

# Debugging for use in -current
#options     DDB            #Enable the kernel debugger
#options     INVARIANTS        #Enable calls of extra sanity checking
options     INVARIANT_SUPPORT    #Extra sanity checks of internal
structures, required by INVARIANTS
#options     WITNESS            #Enable checks to detect deadlocks and
cycles
#options     WITNESS_SKIPSPIN    #Don't run witness on spinlocks for speed

# To make an SMP kernel, the next two are needed
#options     SMP            # Symmetric MultiProcessor Kernel
#options     APIC_IO            # Symmetric (APIC) I/O

device        isa
device        eisa
device        pci

# Floppy drives
device        fdc

# ATA and ATAPI devices
device        ata
device        atadisk            # ATA disk drives
device        atapicd            # ATAPI CDROM drives
device        atapifd            # ATAPI floppy drives
device        atapist            # ATAPI tape drives
options     ATA_STATIC_ID        #Static device numbering

# SCSI Controllers
#device        ahb        # EISA AHA1742 family
#device        ahc        # AHA2940 and onboard AIC7xxx devices
#device        ahd        # AHA39320/29320 and onboard AIC79xx devices
#device        amd        # AMD 53C974 (Tekram DC-390(T))
#device        isp        # Qlogic family
#device        mpt        # LSI-Logic MPT-Fusion
#device        ncr        # NCR/Symbios Logic
#device        sym        # NCR/Symbios Logic (newer chipsets + those of
`ncr')

#device        adv        # Advansys SCSI adapters
#device        adw        # Advansys wide SCSI adapters
#device        aha        # Adaptec 154x SCSI adapters
#device        aic        # Adaptec 15[012]x SCSI adapters, AIC-6[23]60.
#device        bt        # Buslogic/Mylex MultiMaster SCSI adapters

#device        ncv        # NCR 53C500
#device        nsp        # Workbit Ninja SCSI-3
#device        stg        # TMC 18C30/18C50

# RAID controllers interfaced to the SCSI subsystem
#device        asr        # DPT SmartRAID V, VI and Adaptec SCSI RAID
#device        ciss        # Compaq Smart RAID 5*
#device        dpt        # DPT Smartcache III, IV - See NOTES for options!
#device        iir        # Intel Integrated RAID
#device        mly        # Mylex AcceleRAID/eXtremeRAID

# SCSI peripherals
device        scbus        # SCSI bus (required)
#device        ch        # SCSI media changers
device        da        # Direct Access (disks)
#device        sa        # Sequential Access (tape etc)
device        cd        # CD
device        pass        # Passthrough device (direct SCSI access)
#device        ses        # SCSI Environmental Services (and SAF-TE)

# RAID controllers
#device        aac        # Adaptec FSA RAID
#device        aacp        # SCSI passthrough for aac (requires CAM)
#device        amr        # AMI MegaRAID
#device        ida        # Compaq Smart RAID
#device        mlx        # Mylex DAC960 family
#device        pst        # Promise Supertrak SX6000
#device        twe        # 3ware ATA RAID

# atkbdc0 controls both the keyboard and the PS/2 mouse
device        atkbdc        # AT keyboard controller
device        atkbd        # AT keyboard
device        psm        # PS/2 mouse

device        vga        # VGA video card driver

device        splash        # Splash screen and screen saver support

# syscons is the default console driver, resembling an SCO console
device        sc

# Enable this for the pcvt (VT220 compatible) console driver
#device        vt
#options     XSERVER            # support for X server on a vt console
#options     FAT_CURSOR        # start with block cursor

device        agp        # support several AGP chipsets

# Floating point support - do not disable.
device        npx

# Power management support (see NOTES for more options)
#device        apm
# Add suspend/resume support for the i8254.
device        pmtimer

# PCCARD (PCMCIA) support
# Pcmcia and cardbus bridge support
#device        cbb            # cardbus (yenta) bridge
#device        pcic            # ExCA ISA and PCI bridges
#device        pccard            # PC Card (16-bit) bus
#device        cardbus            # CardBus (32-bit) bus

# Serial (COM) ports
device        sio        # 8250, 16[45]50 based serial ports

# Parallel port
device        ppc
device        ppbus        # Parallel port bus (required)
device        lpt        # Printer
device        plip        # TCP/IP over parallel
device        ppi        # Parallel port interface device
#device        vpo        # Requires scbus and da


# PCI Ethernet NICs.
#device        de        # DEC/Intel DC21x4x (``Tulip'')
#device        em        # Intel PRO/1000 adapter Gigabit Ethernet Card
#device        txp        # 3Com 3cR990 (``Typhoon'')
#device        vx        # 3Com 3c590, 3c595 (``Vortex'')

# PCI Ethernet NICs that use the common MII bus controller code.
# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
device        miibus        # MII bus support
#device        dc        # DEC/Intel 21143 and various workalikes
#device        fxp        # Intel EtherExpress PRO/100B (82557, 82558)
#device        pcn        # AMD Am79C97x PCI 10/100 (precedence over 'lnc')
device        rl        # RealTek 8129/8139
#device        sf        # Adaptec AIC-6915 (``Starfire'')
#device        sis        # Silicon Integrated Systems SiS 900/SiS 7016
#device        ste        # Sundance ST201 (D-Link DFE-550TX)
#device        tl        # Texas Instruments ThunderLAN
#device        tx        # SMC EtherPower II (83c170 ``EPIC'')
#device        vr        # VIA Rhine, Rhine II
#device        wb        # Winbond W89C840F
#device        xl        # 3Com 3c90x (``Boomerang'', ``Cyclone'')
#device        bge        # Broadcom BCM570xx Gigabit Ethernet

# ISA Ethernet NICs.  pccard nics included.
#device        cs        # Crystal Semiconductor CS89x0 NIC
# 'device ed' requires 'device miibus'
#device        ed        # NE[12]000, SMC Ultra, 3c503, DS8390 cards
#device        ex        # Intel EtherExpress Pro/10 and Pro/10+
#device        ep        # Etherlink III based cards
#device        fe        # Fujitsu MB8696x based cards
#device        lnc        # NE2100, NE32-VL Lance Ethernet cards
#device        sn        # SMC's 9000 series of ethernet chips
#device        xe        # Xircom pccard ethernet

# ISA devices that use the old ISA shims
#device        le

# Wireless NIC cards
#device        an        # Aironet 4500/4800 802.11 wireless NICs.
#device        awi        # BayStack 660 and others
#device        wi        # WaveLAN/Intersil/Symbol 802.11 wireless NICs.
#device        wl        # Older non 802.11 Wavelan wireless NIC.

# Pseudo devices - the number indicates how many units to allocate.
device        random        # Entropy device
device        loop        # Network loopback
device        ether        # Ethernet support
#device        sl        # Kernel SLIP
#device        ppp        # Kernel PPP
device        tun        # Packet tunnel.
device        pty        # Pseudo-ttys (telnet etc)
#device        md        # Memory "disks"
#device        gif        # IPv6 and IPv4 tunneling
#device        faith        # IPv6-to-IPv4 relaying (translation)

# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
device        bpf        # Berkeley packet filter

# USB support
#device        uhci        # UHCI PCI->USB interface
#device        ohci        # OHCI PCI->USB interface
#device        usb        # USB Bus (required)
#device        udbp        # USB Double Bulk Pipe devices
#device        ugen        # Generic
#device        uhid        # "Human Interface Devices"
#device        ukbd        # Keyboard
#device        ulpt        # Printer
#device        umass        # Disks/Mass storage - Requires scbus and da
#device        ums        # Mouse
#device        urio        # Diamond Rio 500 MP3 player
#device        uscanner    # Scanners
# USB Ethernet, requires mii
#device        aue        # ADMtek USB ethernet
#device        cue        # CATC USB ethernet
#device        kue        # Kawasaki LSI USB ethernet

# Firewall baby!
options        IPFIREWALL        # Firewall (ipfw)
options        IPFIREWALL_VERBOSE    # Verbose errors
#options    IPFIREWALL_FORWARD    # Transparent forwarding
#options    IPDIVERT        # For NATD
#options    DUMMYNET        # Traffic Shaping!


EOF.