The only bus mastering device the resides on the PCI is the SIL card.
I will try another bus mastering device and see if the host arbiter
is enabled. Thanks for useful pointers.
On Aug 11, 2006, at 9:29 PM, Tejun Heo wrote:
Harsha Padmanabha wrote:
I am trying to get sata_sil running on a MPC8349(PPC) board, I
runto the following errors. I cannot upgrade my kernel to the
latest one since most of my changes for MPC8349 to work are for
2.6.11.
1) How can i patch the latest release of libata for 2.6.11 without
having to change to 2.6.17
It's difficult. You'll have to update not only libata but also
some SCSI midlayer stuff too.
2) I have tried SIL 3112 card with the same results
3) I have also tried different hard drives like samsung and WDC
Please let me know what i can do to get this running.
sda:<3>ata_scsi_dump_cdb: CDB (2:0,0,0) 28 00 00 00 00 00 00 00 08
ata_scsi_translate: ENTER
ata_scsi_rw_xlat: ten-byte command
ata_sg_setup: ENTER, ata2
ata_sg_setup: 1 sg elements mapped
ata_fill_sg: PRD[0] = (0x3748000, 0x1000)
ata_dev_select: ENTER, ata2: device 0, wait 1
ata_tf_load_mmio: hob: feat 0x0 nsect 0x0, lba 0x0 0x0 0x0
ata_tf_load_mmio: feat 0x0 nsect 0x8 lba 0x0 0x0 0x0
ata_tf_load_mmio: device 0xE0
ata_exec_command_mmio: ata2: cmd 0x25
ata_scsi_translate: EXIT
ata_scsi_error: ENTER
ata_eng_timeout: ENTER
ata_qc_timeout: ENTER
ata2: command 0x25 timeout, stat 0x58 host_stat 0x2
ata_sg_clean: unmapping 1 sg elements
ata2: status=0x58 { DriveReady SeekComplete DataRequest }
SCSI error : <1 0 0 0> return code = 0x8000002
sda: Current: sense key: Aborted Command
Additional sense: Scsi parity error
end_request: I/O error, dev sda, sector 0
Buffer I/O error on device sda, logical block 0
ata_qc_complete: EXIT
ata_qc_timeout: EXIT
ata_eng_timeout: EXIT
ata_scsi_error: EXIT
Your first DMA command failed. IIRC, there was one errata fix
which fixes a possible controller lock up problem on 3512 and 3114
but it only happens under relatively heavy IO and 3112 isn't
affected, so I don't think you're experiencing that.
At the first glance, your hw seems to have a problem w/ PCI bus
mastering. Does any other device live on the same bus - a NIC
maybe? If so, can it do DMA okay?
--
tejun
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