On Tuesday, September 19, 2006 3:12 PM, James Bottomley wrote:
>
> The issue sounds like a bug in the generic DV ... it's supposed to
> respect the DT setting, but it currently does this by looking
> at the bus
> signalling ... it should be respecting the inquiry data as well.
>
> Does this fix it?
>
No, all that does is disables DT. It still sending
factor=0x8 (U320 nego) to a device that can only do U80.
This is what its sending to fusion with your patch:
( Wide factor = 0x08 @ offset = 0x7f IU WRFLOW RDSTRM RTI PCOMP )
Does the algorithm in spi transport check for a (scsi_device_sync(sdev)
== 1)
and (scsi_device_dv(sdev) == 0), then set spi_min_period(sdev) = 0xA ??
Also, the algorithm in spi_transport is broke for U160 devices. Its
sending U320
nego to U160 devices. What it should do is check for
scsi_device_ius(sdev) == 0
and scsi_device_qas(sdev) == 0, then spi_min_period(sdev)=0x9. Due to
this,
spi transport dv ends up with FAST-40, instead of U160, becuase the nego
at factor=0x8 failed.
Here is inquiry of U160 device.
standard INQUIRY:
PQual=0 Device_type=0 RMB=0 version=0x03 [SPC]
[AERC=0] [TrmTsk=0] NormACA=0 HiSUP=0 Resp_data_format=2
SCCS=0 ACC=0 TGPS=0 3PC=0 Protect=0 BQue=0
EncServ=0 MultiP=0 [MChngr=0] [ACKREQQ=0] Addr16=0
[RelAdr=0] WBus16=1 Sync=1 Linked=1 [TranDis=1] CmdQue=1
Clocking=0x3 QAS=0 IUS=0
length=96 (0x60) Peripheral device type: disk
Vendor identification: QUANTUM
Product identification: ATLAS V 36 WLS
Product revision level: 0A06
Unit serial number: 143991122028
Fusion MPT base driver 3.04.02
Copyright (c) 1999-2005 LSI Logic Corporation
Fusion MPT SPI Host driver 3.04.02
mptbase: Initiating ioc0 bringup
ioc0: 53C1030: Capabilities={Initiator}
mptbase: ioc0: PortPage0 minSyncFactor=8
mptspi: ioc0: saf_te 0
scsi5 : ioc0: LSI53C1030, FwRev=01033000h, Ports=1, MaxQ=222, IRQ=217
mptspi: ioc0: id=0 Requested = 0x00000a00 ( factor = 0x0a @ offset =
0x00 )
scsi 5:0:0:0: Direct access QUANTUM ATLAS V 36 WLS 0A06 PQ: 0
ANSI: 3
mptspi: ioc0: id=0 min_period=0x08 max_offset=0x7f max_width=1
target5:0:0: Beginning Domain Validation
mptspi: ioc0: id=0 Requested = 0x00000a00 ( factor = 0x0a @ offset =
0x00 )
mptspi: ioc0: id=0 Requested = 0x00000a00 ( factor = 0x0a @ offset =
0x00 )
scsi 5:0:0:0:
command: Inquiry: 12 00 00 00 60 00
scsi 5:0:0:0:
command: Inquiry: 12 00 00 00 60 00
scsi 5:0:0:0:
command: Inquiry: 12 00 00 00 60 00
scsi 5:0:0:0:
command: Inquiry: 12 00 00 00 60 00
mptspi: ioc0: id=0 Requested = 0x20000a00 ( Wide factor = 0x0a @ offset
= 0x00 )
scsi 5:0:0:0:
command: Inquiry: 12 00 00 00 60 00
scsi 5:0:0:0:
command: Inquiry: 12 00 00 00 60 00
scsi 5:0:0:0:
command: Inquiry: 12 00 00 00 60 00
mptspi: ioc0: id=0 Requested = 0x207f0a00 ( Wide factor = 0x0a @ offset
= 0x7f )
mptspi: ioc0: id=0 Requested = 0x207f0803 ( Wide factor = 0x08 @ offset
= 0x7f IU DT )
mptspi: ioc0: id=0 Requested = 0x207f0823 ( Wide factor = 0x08 @ offset
= 0x7f IU DT RDSTRM )
mptspi: ioc0: id=0 Requested = 0x207f0833 ( Wide factor = 0x08 @ offset
= 0x7f IU DT WRFLOW RDSTRM )
mptspi: ioc0: id=0 Requested = 0x207f0873 ( Wide factor = 0x08 @ offset
= 0x7f IU DT WRFLOW RDSTRM RTI )
mptspi: ioc0: id=0 Requested = 0x207f08f3 ( Wide factor = 0x08 @ offset
= 0x7f IU DT WRFLOW RDSTRM RTI PCOMP )
scsi 5:0:0:0:
command: Inquiry: 12 00 00 00 60 00
scsi 5:0:0:0:
command: Inquiry: 12 00 00 00 60 00
scsi 5:0:0:0:
command: Inquiry: 12 00 00 00 60 00
target5:0:0: Domain Validation skipping write tests
target5:0:0: Ending Domain Validation
target5:0:0: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 63)
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