Veliciraptor HDD 3.0gbps but UDMA/100 on PCI-e controller?

From: Justin Piszcz
Date: Thu Jul 03 2008 - 08:25:26 EST


On the motherboard itself (all drives configured for AHCI)

[ 2.360648] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 2.678244] ata1.00: ATA-8: WDC WD3000GLFS-01F8U0, 03.03V01, max UDMA/133
[ 2.678594] ata1.00: 586072368 sectors, multi 0: LBA48 NCQ (depth 31/32)
[ 2.684566] ata1.00: configured for UDMA/133

On the PCI-e cards:

[ 16.136568] ata11: SATA link up 3.0 Gbps (SStatus 123 SControl 0)
[ 16.155682] ata11.00: ATA-8: WDC WD3000GLFS-01F8U0, 03.03V01, max UDMA/133
[ 16.156545] ata11.00: 586072368 sectors, multi 16: LBA48 NCQ (depth 31/32)
[ 16.162949] ata11.00: configured for UDMA/100

How come the PCI-e card configured the drive for UDMA/100 and not UDMA/133?

Perhaps the PCI-e card/driver does not configure/have AHCI functionality, or?

The mobo: Intel DG965WH
The card: 03:00.0 RAID bus controller: Silicon Image, Inc. SiI 3132 Serial ATA Raid II Controller (rev 01)

The hard drives are the same make/model.

Thanks,

Justin.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/