Re: UDMA 66 numa Epox MVP3G2
On Thu, Mar 01, 2001 at 10:50:58AM -0300, Edson Y. Fugio wrote:
> Itamar Grochowski Rocha wrote:
> > babylon5:/home/itamargr# hdparm -i /dev/hda
> >
> > /dev/hda:
> >
> > Model=QUANTUM FIREBALL CR6.4A, FwRev=A5U.3400, SerialNo=826911537002
> > Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
> > RawCHS=13328/15/63, TrkSize=32256, SectSize=21298, ECCbytes=4
> > BuffType=DualPortCache, BuffSize=418kB, MaxMultSect=16, MultSect=off
> > CurCHS=13328/15/63, CurSects=12594960, LBA=yes, LBAsects=12594960
> > IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
> > PIO modes: pio0 pio1 pio2 pio3 pio4
> > DMA modes: mdma0 mdma1 mdma2 udma0 udma1 *udma2
> Esta faltando os modos udma3 e udma4, experimente baixar um software que
> ativa/desativa o ATA66 em
> http://www.quantum.com/support/csr/software/csr_software.htm, parece que
> seu hd o ATA66 foi desativado. O ultimo detalhe seria o cabo, o ATA66 e
> ATA100 so funcionam com cabo de 80 vias.
Mandou bem Edson! Alexander tambem!
Realmente o ATA66 estava desativado. Estava. Agora o hdparm aceita o comando:
babylon5:/# hdparm -X68 /dev/hda
/dev/hda:
setting xfermode to 68 (UltraDMA mode4)
Mas ainda continuo vendo o arquivo /proc/ide/via assim:
----------VIA BusMastering IDE Configuration----------------
Driver Version: 2.1e
South Bridge: VIA vt82c596b rev 0x12
Command register: 0x7
Latency timer: 64
PCI clock: 66MHz
Master Read Cycle IRDY: 0ws
Master Write Cycle IRDY: 0ws
FIFO Output Data 1/2 Clock Advance: off
BM IDE Status Register Read Retry: on
Max DRDY Pulse Width: No limit
-----------------------Primary IDE-------Secondary IDE------
Read DMA FIFO flush: on on
End Sect. FIFO flush: on on
Prefetch Buffer: on on
Post Write Buffer: on on
FIFO size: 8 8
Threshold Prim.: 1/2 1/2
Bytes Per Sector: 512 512
Both channels togth: yes yes
-------------------drive0----drive1----drive2----drive3-----
BMDMA enabled: yes yes yes yes
Transfer Mode: UDMA DMA/PIO DMA/PIO DMA/PIO
Address Setup: 30ns 30ns 30ns 30ns
Active Pulse: 75ns 75ns 75ns 75ns
Recovery Time: 45ns 45ns 45ns 45ns
Cycle Time: 63ns 120ns 120ns 120ns
Transfer Rate: 29.3MB/s 16.5MB/s 16.5MB/s 16.5MB/s
Valeu Edson!
Mas ainda estou tentando aumentar a velocidadede de transferência :-( Mesmo porque quando passo o
parâmetro idebus=66 pro kernel a taxa cai de 33.0 pra 29.3Mb/s :-((
--
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Itamar Grochowski Rocha
Fortune cookie for you:
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jeito de ganhar o premio de melhor filme
estrangeiro.
-- Billy Wilder
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