Hello!
i am wondering, why my Seagate ST3120023A is not using UDMA100
as it should. The system bios displayed UDMA100, but /proc/ide/via
says 88MB/s. I have got an 80pin UDMA-133 cable to the harddisk.
Bye, claas
--# dmesg Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx VP_IDE: IDE controller at PCI slot 0000:00:11.1 VP_IDE: chipset revision 6 VP_IDE: not 100% native mode: will probe irqs later ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx VP_IDE: VIA vt8235 (rev 00) IDE UDMA133 controller on pci0000:00:11.1 ide0: BM-DMA at 0xdc00-0xdc07, BIOS settings: hda:DMA, hdb:pio ide1: BM-DMA at 0xdc08-0xdc0f, BIOS settings: hdc:DMA, hdd:pio hda: ST3120023A, ATA DISK drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 hdc: LITE-ON LTR-12101B, ATAPI CD/DVD-ROM drive ide1 at 0x170-0x177,0x376 on irq 15 hda: max request size: 128KiB hda: host protected area => 1 hda: 234441648 sectors (120034 MB) w/2048KiB Cache, CHS=232581/16/63, UDMA(100) /dev/ide/host0/bus0/target0/lun0: p1 p2 hdc: ATAPI 32X CD-ROM CD-R/RW drive, 2048kB Cache, DMA Uniform CD-ROM driver Revision: 3.12
$ cat /proc/ide/via ----------VIA BusMastering IDE Configuration---------------- Driver Version: 3.37 South Bridge: VIA vt8235 Revision: ISA 0x0 IDE 0x6 Highest DMA rate: UDMA133 BM-DMA base: 0xdc00 PCI clock: 33.3MHz Master Read Cycle IRDY: 0ws Master Write Cycle IRDY: 0ws BM IDE Status Register Read Retry: yes Max DRDY Pulse Width: No limit -----------------------Primary IDE-------Secondary IDE------ Read DMA FIFO flush: yes yes End Sector FIFO flush: no no Prefetch Buffer: yes yes Post Write Buffer: yes yes Enabled: yes yes Simplex only: no no Cable Type: 80w 80w -------------------drive0----drive1----drive2----drive3----- Transfer Mode: UDMA PIO DMA PIO Address Setup: 120ns 120ns 120ns 120ns Cmd Active: 90ns 90ns 90ns 90ns Cmd Recovery: 30ns 30ns 30ns 30ns Data Active: 90ns 330ns 90ns 330ns Data Recovery: 30ns 270ns 30ns 270ns Cycle Time: 22ns 600ns 120ns 600ns Transfer Rate: 88.8MB/s 3.3MB/s 16.6MB/s 3.3MB/s
# hdparm -i /dev/hda /dev/hda: Model=ST3120023A, FwRev=3.33, SerialNo=3KA1ERGQ Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4 BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=16 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=234441648 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=no WriteCache=enabled Drive conforms to: ATA/ATAPI-6 T13 1410D revision 2: 1 2 3 4 5 6 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Thu Jul 31 2003 - 22:00:40 EST