DMA timeouts on SiS IDE (solved?)

From: Måns Rullgård
Date: Sat Oct 25 2003 - 15:04:53 EST


As I've reported here a few times previously, I've had some trouble
with DMA timeouts on a SiS 5513 IDE controller. For some reason, I
tried disabling the disk's write cache (hdparm -W0). This appears to
fix the DMA timeout issue. Does this seem reasonable at all? How
does disabling the write cache impact performance?

Hardware involved:

00:00.0 Host bridge: Silicon Integrated Systems [SiS] 650 Host (rev 01)
00:01.0 PCI bridge: Silicon Integrated Systems [SiS] SiS 530 Virtual PCI-to-PCI bridge (AGP)
00:02.0 ISA bridge: Silicon Integrated Systems [SiS] 85C503/5513 (rev 10)
00:02.1 SMBus: Silicon Integrated Systems [SiS]: Unknown device 0016
00:02.2 USB Controller: Silicon Integrated Systems [SiS] SiS7001 USB Controller (rev 07)
00:02.3 USB Controller: Silicon Integrated Systems [SiS] SiS7001 USB Controller (rev 07)
00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev d0)
00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] SiS7012 PCI Audio Accelerator (rev a0)
00:03.0 Ethernet controller: Silicon Integrated Systems [SiS] SiS900 10/100 Ethernet (rev 90)
00:0a.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev a8)
00:0a.1 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev a8)
00:0a.2 FireWire (IEEE 1394): Ricoh Co Ltd R5C552 IEEE 1394 Controller
00:0c.0 Communication controller: Conexant HSF 56k HSFi Modem (rev 01)
01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS] SiS650/651/M650/740 PCI/AGP VGA Display Adapter

00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev d0) (prog-if 80 [Master])
Subsystem: Asustek Computer, Inc.: Unknown device 1688
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: 128
Region 4: I/O ports at b800 [size=16]

SIS5513: IDE controller at PCI slot 0000:00:02.5
SIS5513: chipset revision 208
SIS5513: not 100% native mode: will probe irqs later
SIS5513: SiS 961 MuTIOL IDE UDMA100 controller
ide0: BM-DMA at 0xb800-0xb807, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0xb808-0xb80f, BIOS settings: hdc:DMA, hdd:pio
hda: IC25N040ATMR04-0, ATA DISK drive
Using anticipatory io scheduler
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hdc: ASUS SCB-2408, ATAPI CD/DVD-ROM drive
ide1 at 0x170-0x177,0x376 on irq 15
hda: max request size: 1024KiB
hda: 78140160 sectors (40007 MB) w/1740KiB Cache, CHS=16383/255/63, UDMA(100)
/dev/ide/host0/bus0/target0/lun0: p1 p2 p3


# hdparm -i /dev/hda

/dev/hda:

Model=IC25N040ATMR04-0, FwRev=MO2OAD0A, SerialNo=MRG201K2C1L38C
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=DualPortCache, BuffSize=1740kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=78140160
IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
AdvancedPM=yes: mode=0x80 (128) WriteCache=enabled
Drive conforms to: ATA/ATAPI-6 T13 1410D revision 3a: 2 3 4 5 6

# hdparm -I /dev/hda

/dev/hda:

ATA device, with non-removable media
Model Number: IC25N040ATMR04-0
Serial Number: MRG201K2C1L38C
Firmware Revision: MO2OAD0A
Standards:
Used: ATA/ATAPI-6 T13 1410D revision 3a
Supported: 6 5 4 3
Configuration:
Logical max current
cylinders 16383 65535
heads 16 1
sectors/track 63 63
--
CHS current addressable sectors: 4128705
LBA user addressable sectors: 78140160
LBA48 user addressable sectors: 78140160
device size with M = 1024*1024: 38154 MBytes
device size with M = 1000*1000: 40007 MBytes (40 GB)
Capabilities:
LBA, IORDY(can be disabled)
bytes avail on r/w long: 4 Queue depth: 1
Standby timer values: spec'd by Vendor, no device specific minimum
R/W multiple sector transfer: Max = 16 Current = 16
Advanced power management level: 128 (0x80)
Recommended acoustic management value: 128, current value: 254
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=240ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* NOP cmd
* READ BUFFER cmd
* WRITE BUFFER cmd
* Host Protected Area feature set
* Look-ahead
Write cache
* Power Management feature set
Security Mode feature set
SMART feature set
* FLUSH CACHE EXT command
* Mandatory FLUSH CACHE command
* Device Configuration Overlay feature set
* 48-bit Address feature set
Automatic Acoustic Management feature set
SET MAX security extension
Address Offset Reserved Area Boot
* SET FEATURES subcommand required to spinup after power up
Power-Up In Standby feature set
* Advanced Power Management feature set
* General Purpose Logging feature set
* SMART self-test
* SMART error logging
Security:
Master password revision code = 65534
supported
not enabled
not locked
not frozen
not expired: security count
not supported: enhanced erase
34min for SECURITY ERASE UNIT.
HW reset results:
CBLID- above Vih
Device num = 0 determined by the jumper
Checksum: correct

--
Måns Rullgård
mru@xxxxxx

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