[ofw] Mlx4 driver support

[Tzachi Dar]

Please see bellow.

Thanks
Tzachi 

> -----Original Message-----
> From: ofw-bounces at lists.openfabrics.org 
> [mailto:ofw-bounces at lists.openfabrics.org] On Behalf Of Smith, Stan
> Sent: Tuesday, September 01, 2009 2:55 AM
> To: Leonid Keller; Tzachi Dar
> Cc: ofw_list
> Subject: RE: [ofw] Mlx4 driver support
> 
> Leonid Keller wrote:
> > MLX4 HCA driver (mlx4_hca.sys) is HW-agnostic, it works 
> with a virtual 
> > HCA device.
> > MLX4 BUS driver (mlx4_bus.sys) supports this device - see
> > mlx4_bus.inx:
> 
> Hello,
>   Although the mlx4_hca.sys may be HW agnostic, it is not 
> Firmware insensitive.
> The mlx4_hca.sys PNP load failure was caused by the mlx4_bus 
> driver loading in a non-operation mode due to outdated firmware.
> 
> BTW, a nice touch for your HCA customers would be to add the 
> PSID to the event log error message so a customer would know 
> which firmware image to download and flash!!
> 
> system Event log entries in time order (#4 is latest).
> 
> 4) mlx4_bus has started in non-operational mode.
> 
> 3) QUERY_FW command failed with error -19.
>  The adapter card is non-functional.
>  Most likely a FW problem.
>  Please burn the last FW and restart the mlx4_bus driver.
> 
> 2) HCA FW version 2.4.1002 is not supported. Use 2.5.0 or higher.
> 
> 1)Driver Management has concluded the process to add Service 
> mlx4_bus for  Device Instance ID 
> PCI\VEN_15B3&DEV_673C&SUBSYS_673C15B3&REV_A0\6&1EC6E980&0&0020
> 0030 with the following status: 0.
> 
> What I'm really curious about is why the mlx4_bus driver 
> returned load SUCCESS (as viewed from devmgmt.msc) when 
> indeed the event log claims the device is non-operational?

At the past burning new fw required the driver to load (the tools were
based on the hw driver).
As a result, we had to make sure that the driver still goes up even the
fw doesn't run.
The tools have changed and this behavior is not a must, but it still
remains. One reason is to allow install to finish.

> 
> Even more curious, is the Mellanox WinOF drivers load 
> successfully while the open-source WinOF mlx4 HCA driver 
> never loads as MSFT PNP based on the load status of mlx4_bus 
> claims there is no match for mlx4_hca driver??
> 
I'm not sure that I understand the question but what I can tell is this:
1) There is no real difference between the Mellanox WinOF and the open
source one. (so if one goes up, so should the other).
2) When the driver goes at livefish mode it doesn't call create_pdo so
windows doesn't know that a new driver has to be loaded.



> What a tangled web....
> 
> Stan.
> 
> >
> > [MLX4BUS.DeviceSection.ntamd64]
> > ...
> > %MT26428.DeviceDesc%=MLX4BUS.DDInstall, PCI\VEN_15B3&DEV_673c
> >
> > I guess, you get the error while an unattended install on 
> some machine 
> > with the remains of some old installation.
> > Try to install these same driver manually from Device 
> Manager, while 
> > providing to the installer the right mlx4_bus.inx file ...
> >
> >> -----Original Message-----
> >> From: ofw-bounces at lists.openfabrics.org 
> >> [mailto:ofw-bounces at lists.openfabrics.org] On Behalf Of Smith, Stan
> >> Sent: Friday, August 28, 2009 3:33 AM
> >> To: Tzachi Dar
> >> Cc: ofw_list
> >> Subject: [ofw] Mlx4 driver support
> >>
> >>
> >> Hello,
> >>   The SVN version of the mlx4 HCA driver does not appear 
> to support 
> >> the MT26428 rev A0 QDR with CX4 adapter?
> >> This is the 2nd time I've seen this failure on two 
> different systems 
> >> which have in common MT26428?
> >> It's interesting that the Mellanox Gold drivers install 
> just fine....
> >>
> >> Suggestions on how to update the SVN mlx4 driver to support this 
> >> hardware?
> >>
> >> Thanks,
> >>
> >> Stan.
> >>
> >>
> >>> From %windir%\INF\setupapi.dev.log after failed WinOF install.
> >>
> >>>>>  [DIF_SELECTBESTCOMPATDRV -
> >>>>>
> >> PCI\VEN_15B3&DEV_673C&SUBSYS_673C15B3&REV_A0\6&1EC6E980&0&00200030]
> >>>>>  Section start 2009/08/27 15:49:23.024
> >>       cmd: rundll32.exe
> >> C:\Windows\system32\newdev.dll,pDiDeviceInstallAction
> >> \\.\pipe\PNP_Device_Install_Pipe_1.{c273630a-8f15-4e2f-9e56-46
> >> aa32c4c38e}
> >> 
> "PCI\VEN_15B3&DEV_673C&SUBSYS_673C15B3&REV_A0\6&1ec6e980&0&00200030"
> >> !    dvi: Selecting driver failed(0xe0000228) !    dvi: Default
> >> installer: failed! !    dvi: Error 0xe0000228: There are no
> >> compatible drivers
> >> for this device.
> >> <<<  Section end 2009/08/27 15:49:23.024 <<<  [Exit status:
> >> FAILURE(0xe0000228)] 
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