--- vatbier <[EMAIL PROTECTED]> wrote:
> Then I found on viaarena.com this patch for ML8.2:
> VIA ML8.2 ATA133-100 Patch 686B-8231-8233x-8235 ver 0.91A.gz
> contains a patch file mdk8.2-patch-2.4.18-vpide.gz date: 20/9/02
> and a readme.pdf:
> VIA ML8.2 ATA133-100 Patch Readme.pdf:
>
> "hdparm -t /dev/hda: sustained transfer rate of the disk reads:
> ...
> VT8233 Original Kernel 23,7 MB/sec
> rebuilt kernel with 39,75 MB/sec
> Patch IDE
>
> So either my kernel is already patched and for some other reason only
> manages 26,67 MB/sec for sustained transfer rate or it isn't patched
> yet and incorrectly states that I have a UDMA100 driver.
>
> hdparm on my ML9.0 shows the same speeds. Does ML9.0 has this patch
> from
> VIA already included?
>
I looked at this patch mdk8.2-patch-2.4.18-vpide and compared it to
ML9.0:
usr/src/linux-2.4.19-16mdk/drivers/ide/pci/via82cxxx.c
/usr/src/linux-2.4.19-16mdk/include/linux/pci_ids.h
The via82cxxx.c of ML9.0 seems updated with this patch (but not
entirely), but pci_ids.h does not
(e.g. "-#define PCI_DEVICE_ID_VIA_8233_0 0x3074
+#define PCI_DEVICE_ID_VIA_8233 0x3074"
in pci_ids.h it still reads "VIA_8233_0").
I'm not familiar with looking at patches but I get the feeling it
mostly
adds udma133 support.
I have VIA 8233 and ML9.0:via82cxxx.c looks like I should get UDMA100
speeds for hdparm -t /dev/hda. But I'm getting just 26,67 MB/sec
instead
of the near 40 MB/sec speed they promise.
Or there other parameters that influence hdparm -t /dev/hda?
(Somewhere I read that "I/O support = 1(32-bit)" should be set to 3,
or
set "unmaskirq = 1 (on)" to 0 for better performances).
So again what does hdparm -t /dev/hda return on your computer (with or
without VIA 8233 and/or Western Digital hard drives) ?
vatbier
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