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SubjectDMA Problems with Intel 845 Chipset and Northwood CPU
Date
Hello all,

Please accept my apologies if this question has already been answered....
I have a new Pentium 4 computer and I can't get the DMA working for hard
disk transfers. Specifically, its a Dell Dimension 4500 with a Pentium 4
2.26 GHz processor (Northwood) and an 845 (Brookdale) chipset. RedHat
7.3....
I noticed that the hard disk transfers were very slow. I tried to set up
DMA with hdparm - see below:

[root@yoda ide]# hdparm /dev/hda

/dev/hda:
multcount = 16 (on)
I/O support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 0 (off)
keepsettings = 0 (off)
nowerr = 0 (off)
readonly = 0 (off)
readahead = 8 (on)
geometry = 4866/255/63, sectors = 78177792, start = 0
busstate = 1 (on)
[root@yoda ide]# hdparm -d1 /dev/hda

/dev/hda:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
using_dma = 0 (off)
[root@yoda ide]#

I thought that perhaps the chipset had changed between this Northwood
machine an the older core - I have a P4 1.8 GHz machine that DMA works fine
on. I upgraded to kernel 2.4.19 with no change.

The IDE controller (according to Windows XP....) is an Intel 82801DB Ultra
ATA Storage Controller - 24CB. I've included the lspci --vvx listing from
the problem machine below - my aplogies for the long list. If anyone has
any suggestions I'd really appreciate them...
Thanks....
Mark

lspci listing:

00:00.0 Host bridge: Intel Corp. 82845 845 (Brookdale) Chipset Host Bridge
(rev 11)
Subsystem: Intel Corp. 82845 845 (Brookdale) Chipset Host Bridge
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ >SERR- <PERR-
Latency: 0
Region 0: Memory at f0000000 (32-bit, prefetchable) [size=128M]
Capabilities: [e4] #09 [a104]
Capabilities: [a0] AGP version 2.0
Status: RQ=31 SBA+ 64bit- FW+ Rate=x1,x2
Command: RQ=0 SBA- AGP+ 64bit- FW- Rate=<none>
00: 86 80 30 1a 06 01 90 20 11 00 00 06 00 00 00 00
10: 08 00 00 f0 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 30 1a
30: 00 00 00 00 e4 00 00 00 00 00 00 00 00 00 00 00
00:01.0 PCI bridge: Intel Corp. 82845 845 (Brookdale) Chipset AGP Bridge
(rev 11) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 64
Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
Memory behind bridge: fc700000-fe7fffff
Prefetchable memory behind bridge: dc300000-ec4fffff
BridgeCtl: Parity- SERR+ NoISA- VGA+ MAbort- >Reset- FastB2B-
00: 86 80 31 1a 07 01 a0 00 11 00 04 06 00 40 01 00
10: 00 00 00 00 00 00 00 00 00 01 01 40 f0 00 a0 22
20: 70 fc 70 fe 30 dc 40 ec 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0a 00
00:1d.0 USB Controller: Intel Corp.: Unknown device 24c2 (rev 01) (prog-if
00 [UHCI])
Subsystem: Dell Computer Corporation: Unknown device 0132
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin A routed to IRQ 11
Region 4: I/O ports at e800 [size=32]
00: 86 80 c2 24 05 00 80 02 01 00 03 0c 00 00 80 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 01 e8 00 00 00 00 00 00 00 00 00 00 28 10 32 01
30: 00 00 00 00 00 00 00 00 00 00 00 00 0b 01 00 00

00:1d.1 USB Controller: Intel Corp.: Unknown device 24c4 (rev 01) (prog-if
00 [UHCI])
Subsystem: Dell Computer Corporation: Unknown device 0132
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin B routed to IRQ 5
Region 4: I/O ports at e880 [size=32]
00: 86 80 c4 24 05 00 80 02 01 00 03 0c 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 81 e8 00 00 00 00 00 00 00 00 00 00 28 10 32 01
30: 00 00 00 00 00 00 00 00 00 00 00 00 05 02 00 00

00:1d.2 USB Controller: Intel Corp.: Unknown device 24c7 (rev 01) (prog-if
00 [UHCI])
Subsystem: Dell Computer Corporation: Unknown device 0132
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin C routed to IRQ 9
Region 4: I/O ports at ec00 [size=32]
00: 86 80 c7 24 05 00 80 02 01 00 03 0c 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 01 ec 00 00 00 00 00 00 00 00 00 00 28 10 32 01
30: 00 00 00 00 00 00 00 00 00 00 00 00 09 03 00 00

00:1d.7 USB Controller: Intel Corp.: Unknown device 24cd (rev 01) (prog-if
20 [EHCI])
Subsystem: Dell Computer Corporation: Unknown device 0132
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin D routed to IRQ 10
Region 0: Memory at febffc00 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] #0a [2080]
00: 86 80 cd 24 06 01 90 02 01 20 03 0c 00 00 00 00
10: 00 fc bf fe 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 28 10 32 01
30: 00 00 00 00 50 00 00 00 00 00 00 00 0a 04 00 00

00:1e.0 PCI bridge: Intel Corp. 82801BA/CA PCI Bridge (rev 81) (prog-if 00
[Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR+
Latency: 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=32
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: fe800000-feafffff
Prefetchable memory behind bridge: ec500000-ec5fffff
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
00: 86 80 4e 24 07 01 80 80 81 00 04 06 00 00 01 00
10: 00 00 00 00 00 00 00 00 00 02 02 20 d0 d0 80 22
20: 80 fe a0 fe 50 ec 50 ec 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 06 00
00:1f.0 ISA bridge: Intel Corp.: Unknown device 24c0 (rev 01)
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0
00: 86 80 c0 24 0f 01 80 02 01 00 01 06 00 00 80 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

00:1f.1 IDE interface: Intel Corp.: Unknown device 24cb (rev 01) (prog-if 8a
[Master SecP PriP])
Subsystem: Dell Computer Corporation: Unknown device 0132
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin A routed to IRQ 9
Region 0: I/O ports at <unassigned> [size=8]
Region 1: I/O ports at <unassigned> [size=4]
Region 2: I/O ports at <unassigned> [size=8]
Region 3: I/O ports at <unassigned> [size=4]
Region 4: I/O ports at ffa0 [size=16]
Region 5: Memory at 20000000 (32-bit, non-prefetchable) [disabled]
[size=1K]
00: 86 80 cb 24 05 00 80 02 01 8a 01 01 00 00 00 00
10: 01 00 00 00 01 00 00 00 01 00 00 00 01 00 00 00
20: a1 ff 00 00 00 00 00 20 00 00 00 00 28 10 32 01
30: 00 00 00 00 00 00 00 00 00 00 00 00 ff 01 00 00
00:1f.3 SMBus: Intel Corp.: Unknown device 24c3 (rev 01)
Subsystem: Dell Computer Corporation: Unknown device 0132
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Interrupt: pin B routed to IRQ 3
Region 4: I/O ports at e480 [size=32]
00: 86 80 c3 24 01 00 80 02 01 00 05 0c 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 81 e4 00 00 00 00 00 00 00 00 00 00 28 10 32 01
30: 00 00 00 00 00 00 00 00 00 00 00 00 03 02 00 00

01:00.0 VGA compatible controller: nVidia Corporation NV25 [GeForce4 Ti4200]
(rev a3) (prog-if 00 [VGA])
Subsystem: nVidia Corporation: Unknown device 0132
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 248 (1250ns min, 250ns max)
Interrupt: pin A routed to IRQ 11
Region 0: Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at e0000000 (32-bit, prefetchable) [size=128M]
Region 2: Memory at ec480000 (32-bit, prefetchable) [size=512K]
Expansion ROM at fe7e0000 [disabled] [size=128K]
Capabilities: [60] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [44] AGP version 2.0
Status: RQ=31 SBA+ 64bit- FW+ Rate=x1,x2
Command: RQ=31 SBA- AGP+ 64bit- FW- Rate=<none>
00: de 10 53 02 07 00 b0 02 a3 00 00 03 00 f8 00 00
10: 00 00 00 fd 08 00 00 e0 08 00 48 ec 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 de 10 32 01
30: 00 00 00 00 60 00 00 00 00 00 00 00 0b 01 05 01
02:00.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev
10)
Subsystem: Intel Corp.: Unknown device 0071
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 64 (2000ns min, 14000ns max), cache line size 08
Interrupt: pin A routed to IRQ 11
Region 0: Memory at feaff000 (32-bit, non-prefetchable) [size=4K]
Region 1: I/O ports at dc00 [size=64]
Region 2: Memory at feac0000 (32-bit, non-prefetchable) [size=128K]
Expansion ROM at feae0000 [disabled] [size=64K]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=2 PME-
00: 86 80 29 12 17 01 90 02 10 00 00 02 08 40 00 00
10: 00 f0 af fe 01 dc 00 00 00 00 ac fe 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 71 00
30: 00 00 ae fe dc 00 00 00 00 00 00 00 0b 01 08 38
02:02.0 Multimedia audio controller: Cirrus Logic CS 4614/22/24
[CrystalClear SoundFusion Audio Accelerator] (rev 01)
Subsystem: Voyetra Technologies: Unknown device 3357
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 64 (1000ns min, 6000ns max)
Interrupt: pin A routed to IRQ 9
Region 0: Memory at feafd000 (32-bit, non-prefetchable) [size=4K]
Region 1: Memory at fe900000 (32-bit, non-prefetchable) [size=1M]
Capabilities: [40] Power Management version 2
Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00: 13 10 03 60 06 01 10 04 01 00 01 04 00 40 00 00
10: 00 d0 af fe 00 00 90 fe 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 53 50 57 33
30: 00 00 00 00 40 00 00 00 00 00 00 00 09 01 04 18

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