Re: PATCH: Add support for IT8212 IDE controllers
From: Ian Hastie (ianh_at_iahastie.clara.net)
Date: 08/01/04
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To: linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org Date: Sun, 1 Aug 2004 20:22:28 +0100
On Sunday 01 Aug 2004 00:22, Alan Cox wrote:
> There is a messy scsi faking vendor driver for this card but this instead
> is a standard Linux IDE layer driver.
> + * Documentation available from
> + * http://www.ite.com.tw/pc/IT8212F_V04.pdf
A newer version than the one I have. Looks like there's at least one newer
chip revision than the 0x11 that I have too.
Just need to add something like this to get it to compile.
--- linux-2.6.8-rc2/include/linux/pci_ids.h.it8212 2004-08-01
18:44:08.000000000 +0100
+++ linux-2.6.8-rc2/include/linux/pci_ids.h 2004-08-01 19:14:44.000000000
+0100
@@ -1634,6 +1634,7 @@
#define PCI_VENDOR_ID_ITE 0x1283
#define PCI_DEVICE_ID_ITE_IT8172G 0x8172
#define PCI_DEVICE_ID_ITE_IT8172G_AUDIO 0x0801
+#define PCI_DEVICE_ID_ITE_8212 0x8212
#define PCI_DEVICE_ID_ITE_8872 0x8872
#define PCI_DEVICE_ID_ITE_IT8330G_0 0xe886
---
Some quick test results I just got. My set up is a IT8212 PCI card running
two UDMA133 discs in software RAID0. I'd like to test the smart RAID some
time, but that isn't really practical at the moment.
IT8212: IDE controller at PCI slot 0000:00:0c.0
ACPI: PCI interrupt 0000:00:0c.0[A] -> GSI 17 (level, low) -> IRQ 17
IT8212: chipset revision 17
IT8212: 100% native mode on irq 17
That makes sense.
ide2: BM-DMA at 0xec00-0xec07, BIOS settings: hde:pio, hdf:pio
it8212: controller in RAID mode.
That doesn't. I have no RAID sets defined in the IT8212 card BIOS. BTW, the
BIOS is an old one and should be updated. However when I tried the updater
claimed success, but on reboot it hadn't changed.
ide3: BM-DMA at 0xec08-0xec0f, BIOS settings: hdg:pio, hdh:pio
hde: Maxtor 6Y120P0, ATA DISK drive
it8212: selected 50MHz clock.
Nor does this as it really should be using the 66MHz clock setting.
ide2 at 0xb000-0xb007,0xa802 on irq 17
hde: max request size: 128KiB
hde: recal_intr: status=0x51 { DriveReady SeekComplete Error }
hde: recal_intr: error=0x04 { DriveStatusError }
Any idea what could be causing this? My hacked driver doesn't get this in
2.6.7, but then it could be a 2.6.8 problem.
hde: 240121728 sectors (122942 MB) w/7936KiB Cache, CHS=65535/16/63,
UDMA(33)
Oddly my driver reports UDMA(33) too, but that's probably bad coding as it is
definitely running faster than that.
/dev/ide/host2/bus0/target0/lun0: p1 p2
hdg: Maxtor 6Y120P0, ATA DISK drive
it8212: selected 50MHz clock.
ide3 at 0xa400-0xa407,0xa002 on irq 17
hdg: max request size: 128KiB
hdg: recal_intr: status=0x51 { DriveReady SeekComplete Error }
hdg: recal_intr: error=0x04 { DriveStatusError }
hdg: 240121728 sectors (122942 MB) w/7936KiB Cache, CHS=65535/16/63,
UDMA(33)
/dev/ide/host2/bus1/target0/lun0: p1 p2
And the same speed problems again.
Now some speed tests with hdparm
# hdparm -Tt /dev/hd[eg] /dev/md[01]
/dev/hde:
Timing buffer-cache reads: 3016 MB in 2.00 seconds = 1505.97 MB/sec
Timing buffered disk reads: 86 MB in 3.02 seconds = 28.49 MB/sec
/dev/hdg:
Timing buffer-cache reads: 3012 MB in 2.00 seconds = 1504.72 MB/sec
Timing buffered disk reads: 86 MB in 3.02 seconds = 28.46 MB/sec
/dev/md0:
Timing buffer-cache reads: 2928 MB in 2.00 seconds = 1462.03 MB/sec
Timing buffered disk reads: 156 MB in 3.01 seconds = 51.90 MB/sec
/dev/md1:
Timing buffer-cache reads: 2996 MB in 2.00 seconds = 1495.98 MB/sec
Timing buffered disk reads: 156 MB in 3.01 seconds = 51.77 MB/sec
So I guess it actually is running at 33MHz!
Current results with my hack
# hdparm -Tt /dev/hd[eg] /dev/md[01]
/dev/hde:
Timing buffer-cache reads: 2980 MB in 2.00 seconds = 1488.74 MB/sec
Timing buffered disk reads: 172 MB in 3.02 seconds = 57.04 MB/sec
/dev/hdg:
Timing buffer-cache reads: 2988 MB in 2.00 seconds = 1493.48 MB/sec
Timing buffered disk reads: 170 MB in 3.03 seconds = 56.15 MB/sec
/dev/md0:
Timing buffer-cache reads: 2964 MB in 2.00 seconds = 1480.74 MB/sec
Timing buffered disk reads: 286 MB in 3.00 seconds = 95.25 MB/sec
/dev/md1:
Timing buffer-cache reads: 2924 MB in 2.00 seconds = 1460.03 MB/sec
Timing buffered disk reads: 290 MB in 3.01 seconds = 96.33 MB/sec
--
Ian.
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- Previous message: Jesper Juhl: "[PATCH] fix inline related gcc 3.4 build failures in drivers/net/wan/dscc4.c"
- In reply to: Alan Cox: "PATCH: Add support for IT8212 IDE controllers"
- Next in thread: Alan Cox: "Re: PATCH: Add support for IT8212 IDE controllers"
- Reply: Alan Cox: "Re: PATCH: Add support for IT8212 IDE controllers"
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