Re: [RFT][PATCH] fix ServerWorks PIO auto-tuning

[Tomas Szepe]

On Oct-16 2003, Thu, 23:44 +0200
Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@xxxxxxxxxxxxxx> wrote:

> I wonder if this patch fixes problems (reported back in 2.4.21 days)
> with CSB5 IDE and Compaq Proliant machines.  Please test it if you can.

Still, there's one prevailing problem:

Compaq Proliant ML350 G3
ServerWorks CSB5 IDE Controller (rev 93) (prog-if 8a [Master SecP PriP])
WDC WD1200JB-00CRA1 as hdb

No autodma on boot, even w/ 2.4.23-pre7 + the pio autotuning fix:

Linux version 2.4.23-pre7 (kala@ns) (gcc version 2.95.3 20010315 (release)) #1 SMP Sat Oct 18 14:40:16 CEST 2003
Kernel command line: root=/dev/md0 vga=normal
...
Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
SvrWks CSB5: IDE controller at PCI slot 00:0f.1
SvrWks CSB5: chipset revision 147
SvrWks CSB5: not 100% native mode: will probe irqs later
SvrWks CSB5: simplex device: DMA forced
    ide0: BM-DMA at 0x2000-0x2007, BIOS settings: hda:pio, hdb:pio
SvrWks CSB5: simplex device: DMA forced
    ide1: BM-DMA at 0x2008-0x200f, BIOS settings: hdc:pio, hdd:pio
hda: HL-DT-ST CD-ROM GCR-8480B, ATAPI CD/DVD-ROM drive
hdb: WDC WD1200JB-00CRA1, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hdb: attached ide-disk driver.
hdb: host protected area => 1
hdb: 234441648 sectors (120034 MB) w/8192KiB Cache, CHS=232581/16/63
hda: attached ide-cdrom driver.
hda: ATAPI 48X CD-ROM drive, 128kB Cache
...

devel:~# hdparm -Iv /dev/hdb|grep -a dma
 using_dma    =  0 (off)
        DMA: mdma0 mdma1 *mdma2 udma0 udma1 udma2 udma3 udma4 udma5 

After issuing "/usr/sbin/hdparm -d1 -Xudma5 /dev/hdb" all's running nicely,
no errors whatsoever.

devel:/etc/rc.d# hdparm -Iv /dev/hdb|grep -a dma
 using_dma    =  1 (on)
        DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 

-- 
Tomas Szepe <szepe@xxxxxxxxxxxxxxx>
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