[Bug 16382] New: driver 'pata_hpt37x' attempts to run HPT device x0006 subd x0001. Doesn't work! 'pata_hpt3x2n' works well.

[Bug 16382] New: driver 'pata_hpt37x' attempts to run HPT device x0006 subd x0001. Doesn't work! 'pata_hpt3x2n' works well.

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=16382

           Summary: driver 'pata_hpt37x' attempts to run HPT device x0006
                    subd x0001. Doesn't work! 'pata_hpt3x2n' works well.
           Product: IO/Storage
           Version: 2.5
    Kernel Version: 2.6.35
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: IDE
        AssignedTo: io_ide@kernel-bugs.osdl.org
        ReportedBy: rickstockton@reno-computerhelp.com
        Regression: No


Mandriva bug #60010. https://qa.mandriva.com/show_bug.cgi?id=60010

I formerly used driver 'hpt366' (NOT pata_366), completely functional. But a
totally new installation results in usage of 'pata_hpt37x', with the following
result:

ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 19
pata_hpt37x 0000:01:0a.0: PCI INT A -> Link[LNKC] -> GSI 19 (level, low) -> IRQ
19
pata_hpt37x 0000:01:0a.0: PCI INT A disabled


The marketing name of the device is "Highpoint 133SB". Hewre is the PCI ID:
pata_hpt302     : HighPoint Technologies, Inc.|HPT302/302N [STORAGE_RAID]
(vendor:1103 device:0006 subv:1103 subd:0001) (rev: 02)

Rebuilt initrd to include pata_hpt3x2n instead (BOTH drivers claim to support
this device, so I didn't need to rebuild the hpt3x2n driver). Blacklisted
hpt37x. This driver Successful use of disk and/or DVD/RW per the following
follows: 

libata version 3.00 loaded.
ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 19
pata_hpt3x2n 0000:01:0a.0: PCI INT A -> Link[LNKC] -> GSI 19 (level, low) ->
IRQ 19
pata_hpt37x: bus clock 33MHz, using 66MHz DPLL.
scsi0 : pata_hpt3x2n
scsi1 : pata_hpt3x2n
ata1: PATA max UDMA/133 cmd 0xdc00 ctl 0xd880 bmdma 0xd000 irq 19
ata2: PATA max UDMA/133 cmd 0xd800 ctl 0xd480 bmdma 0xd008 irq 19
ata2.00: ATAPI: Memorex DVD+-RAM 530L v1, 5M64, max UDMA/66
ata2.00: configured for UDMA/66
scsi 1:0:0:0: CD-ROM            Memorex  DVD+-RAM 530L v1 5M64 PQ: 0 ANSI: 5

works!

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[Bug 16382] driver 'pata_hpt37x' attempts to run HPT device x0006 subd x0001. Doesn't work! 'pata_hpt3x2n' works well.

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=16382


Robert Hancock <hancockrwd@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hancockrwd@gmail.com




--- Comment #1 from Robert Hancock <hancockrwd@gmail.com>  2010-07-14 01:40:44 ---
It looks like pata_hpt37x supports the HPT302 chip, but only revision 1.
Revision 2 and higher (which you have) is supported by the pata_hpt3x2n driver
(which doesn't support revision 1). The module device table can't contain
dependencies on revision number, therefore both devices are considered eligible
to drive the device. However, the one that doesn't support that revision of the
chip just won't attach to the device. Loading both drivers should therefore be
harmless.

The problem in your case seems to be that the distro installer is only trying
to load one of the drivers which happens to not be the one that you need. This
isn't right - it should try and load ALL drivers that match the PCI IDs and see
what sticks.

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[Bug 16382] driver 'pata_hpt37x' attempts to run HPT device x0006 subd x0001. Doesn't work! 'pata_hpt3x2n' works well.

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=16382





--- Comment #2 from Rick Stockton <rickstockton@reno-computerhelp.com>  2010-07-14 02:26:10 ---
Thanks, Robert!

But, if pata_3x2n can support all known versions of the chip, why not just use
that exclusively? (It is the driver which HighPoint doco makes reference too --
although that doco is from 2001.)

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[Bug 16382] driver 'pata_hpt37x' attempts to run HPT device x0006 subd x0001. Doesn't work! 'pata_hpt3x2n' works well.

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=16382





--- Comment #3 from Rick Stockton <rickstockton@reno-computerhelp.com>  2010-07-14 02:36:53 ---
Here's 'lscpi -vvvv':

01:0a.0 RAID bus controller: HighPoint Technologies, Inc. HPT302/302N (rev 02)
        Subsystem: HighPoint Technologies, Inc. Device 0001
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 120 (2000ns min, 2000ns max)
        Interrupt: pin A routed to IRQ 19
        Region 0: I/O ports at dc00 [size=8]
        Region 1: I/O ports at d880 [size=4]
        Region 2: I/O ports at d800 [size=8]
        Region 3: I/O ports at d480 [size=4]
        Region 4: I/O ports at d000 [size=256]
        Expansion ROM at f9fe0000 [disabled] [size=128K]
        Capabilities: [60] Power Management version 2
                Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Kernel driver in use: pata_hpt3x2n
        Kernel modules: hpt366, pata_hpt37x, pata_hpt3x2n

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[Bug 16382] driver 'pata_hpt37x' attempts to run HPT device x0006 subd x0001. Doesn't work! 'pata_hpt3x2n' works well.

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=16382





--- Comment #4 from Robert Hancock <hancockrwd@gmail.com>  2010-07-14 03:31:10 ---
(In reply to comment #2)
> Thanks, Robert!
> 
> But, if pata_3x2n can support all known versions of the chip, why not just use
> that exclusively?

It doesn't - revision 1 is not supported by that driver. For that chip rev,
pata_hpt37x is required.

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[Bug 16382] driver 'pata_hpt37x' attempts to run HPT device x0006 subd x0001. Doesn't work! 'pata_hpt3x2n' works well.

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=16382





--- Comment #5 from Rick Stockton <rickstockton@reno-computerhelp.com>  2010-07-14 19:50:08 ---
OK! There's a comment "check this" in the initialization code of (at line 843
within the current version of pata_hpt37x, V0.6.15), and that made me
suspicious.

But, per your suggestion, I rebuilt initrd with BOTH drivers included -- and I
installed hpt37x first. This worked exactly as as you said it should: hpt37x
was assigned to handle the interrupt, but it bailed out immediately. hpt3x2n
was tried next, and was able to grab the interface.

So please feel free to close this as 'invalid'. There's one TINY nitpick which
I saw in pata_3x2n, but it would be a different bug (if someone wants to
bother): Source code lines 536-537 (in the current version, V0.3.10)are as
follows,

536         printk(KERN_INFO "pata_hpt37x: bus clock %dMHz, using 66MHz
DPLL.\n",
537                pci_mhz);

And you saw this in my clip from dmesg (in the bug description, above). Driver
"pata_3x2n" should not print a message listing itself as "pata_hpt37x"; there's
an old copy/paste mistake in there.


THANKS for hand-holding the newby, you've been awesome.

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[Bug 16382] driver 'pata_hpt37x' attempts to run HPT device x0006 subd x0001. Doesn't work! 'pata_hpt3x2n' works well.

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=16382


Alan <alan@lxorguk.ukuu.org.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |alan@lxorguk.ukuu.org.uk
         Resolution|                            |DOCUMENTED




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