Hi,
   I have backported the 0.25 verion of sata_mv.c to
 2.6.14. This the patched version with DMA Boundry
fixes. I need a backport as kernel is supported for
a specific hardware (Cavium Octeon).
 This looks somewaht stable on the hardware as
compared
 to 0.5 and 07 which are very unstable and gets struct
in middle. I can send those logs if needed. Please
note
 that in PIO mode everything looks OK with this setup.
   Apreciate your help.
Thanks,
Narendra
   Here is the log for  0.25 with DMA bounryfixes. I 
few erros are follows 
------------------------------------------------
CSI device sda: drive cache: write back
 sda:<4>ata3: status=0x50 { DriveReady SeekComplete }
ata3: error=0x01 { AddrMarkNotFound }
sata_mv: PCI ERROR; PCI IRQ cause=0x00000400
sda: Current: sense key=0x0
    ASC=0x0 ASCQ=0x0
 unknown partition table

---------------------------------------------
Here is log  SCSI messages....
ata_mv 0000:00:0d.0: version 0.25
PCI: Enabling device 0000:00:0d.0 (0000 -> 0003)
sata_mv 0000:00:0d.0: 32 slots 4 ports SCSI mode IRQ
via INTx
ata1: SATA max UDMA/133 cmd 0x0 ctl 0x80011B0008022120
bmdma 0x0 irq 47
ata2: SATA max UDMA/133 cmd 0x0 ctl 0x80011B0008024120
bmdma 0x0 irq 47
ata3: SATA max UDMA/133 cmd 0x0 ctl 0x80011B0008026120
bmdma 0x0 irq 47
ata4: SATA max UDMA/133 cmd 0x0 ctl 0x80011B0008028120
bmdma 0x0 irq 47
ata1: no device found (phy stat 00000000)
scsi0 : sata_mv
ata2: no device found (phy stat 00000000)
scsi1 : sata_mv
ata3: dev 0 ATA-7, max UDMA/100, 156301488 sectors:
LBA48
ata3: dev 0 configured for UDMA/100
scsi2 : sata_mv
ata4: no device found (phy stat 00000000)
scsi3 : sata_mv
  Vendor: ATA       Model: HTS721080G9SA00   Rev: MC4O
  Type:   Direct-Access                      ANSI SCSI
revision: 05
SCSI device sda: 156301488 512-byte hdwr sectors
(80026 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 156301488 512-byte hdwr sectors
(80026 MB)
SCSI device sda: drive cache: write back
 sda:<4>ata3: status=0x50 { DriveReady SeekComplete }
ata3: error=0x01 { AddrMarkNotFound }
sata_mv: PCI ERROR; PCI IRQ cause=0x00000400
sda: Current: sense key=0x0
    ASC=0x0 ASCQ=0x0
 unknown partition table
Attached scsi disk sda at scsi2, channel 0, id 0, lun
0
Attached scsi generic sg0 at scsi2, channel 0, id 0,
lun 0,  type 0


Note: forwarded message attached.


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