i386/127710: My driver PCI probe is not called formycorrespondingdevice ID and Vendor ID

[Warner Losh]

From: "Bagavathy Kumar Mahendran  " <bagavathykumar.m at hcl.in>
Subject: RE: i386/127710: My driver PCI probe is not called formycorrespondingdevice ID and Vendor ID
Date: Mon, 6 Oct 2008 12:36:44 +0530

> Dear Warner,
> 
>               My probe is getting called for the parent bridge devices
> .but 
> Not for my pci Card. I have tested this by printing the Device ID and
> Vendor ID of the corresponding device_t in my probe.
> 
> You are trying to say even cbb probes for my device and return
> BUS_PROBE_DEFAULT still my probe function will be called. Just clarify
> it.
> But my testing seems that my probe is not called for my pci device

Can you send me the DRIVER_MODULE line in your driver?

Warner

> Bagavathy kumar .M 
> 
> 
> -----Original Message-----
> From: Warner Losh [mailto:imp at bsdimp.com] 
> Sent: Monday, October 06, 2008 12:27 PM
> To: Bagavathy Kumar Mahendran 
> Cc: jhb at freebsd.org; freebsd-hackers at freebsd.org
> Subject: Re: i386/127710: My driver PCI probe is not called
> formycorrespondingdevice ID and Vendor ID
> 
> >             Thanks for your support. my probe is getting called for
> all
> > the bridges not for my pci device. so please provide the fix .
> >
> > OR 
> > Is any other way available for making my driver to override the probe
> of
> > cbb driver for my corresponding device (With out changing cbb driver).
> 
> If your probe returns a higher number that's negative, it will.
> Unless cbb is returning 0, your probe routine will get called.  Make
> sure it isn't.  Code inspection suggests that it isn't.
> 
> Warner
> 
> 
> 
> > With regards,
> > Bagavathy kumar .M
> > 
> > -----Original Message-----
> > From: M. Warner Losh [mailto:imp at bsdimp.com] 
> > Sent: Friday, October 03, 2008 11:03 AM
> > To: Bagavathy Kumar Mahendran 
> > Cc: jhb at freebsd.org; freebsd-hackers at freebsd.org
> > Subject: Re: i386/127710: My driver PCI probe is not called for
> > mycorrespondingdevice ID and Vendor ID
> > 
> > In message:
> >
> <68C9F31EF19DB6448F515EF294028FDEE99BCE at chn-hclt-evs05.HCLT.CORP.HCL.IN>
> >             "Bagavathy Kumar Mahendran  " <bagavathykumar.m at hcl.in>
> > writes:
> > : 
> > : Dear Baldwin,
> > :               Thanks for your support .but my pci probe function is
> > not
> > : getting called for my device id and vendor id. Because pccbb driver
> > : already sets the device_set_desc as PCI-CardBus Bridge. So is there
> > any
> > : other option for me to make my_pciprobe function to be called for my
> > : corresponding device id and vendor id.
> > 
> > That's not why your probe isn't called.  Setting a description is
> > standard behavior for the probe routine.  Are you sure that the device
> > probe routine is getting called at all for any device?  Have you tried
> > just leaving cbb out of the kernel?  I recently fixed the original
> > problem in cbb (the fact it doesn't check the bridge type too), maybe
> > you could try to pick up that fix as well?
> > 
> > Warner
> > 
> > 
> > : Thanks,
> > : 
> > : Regards,
> > : Bagavathy kumar .M
> > : 
> > : 
> > : 
> > : -----Original Message-----
> > : From: John Baldwin [mailto:jhb at freebsd.org] 
> > : Sent: Wednesday, October 01, 2008 8:57 PM
> > : To: freebsd-hackers at freebsd.org
> > : Cc: Bagavathy Kumar Mahendran ; Warner Losh
> > : Subject: Re: FW: i386/127710: My driver PCI probe is not called for
> my
> > : correspondingdevice ID and Vendor ID
> > : 
> > : On Wednesday 01 October 2008 08:50:15 am Bagavathy Kumar Mahendran
> > : wrote:
> > : > 
> > : > Dear All,
> > : >              Iam writing a new driver for a SAS/SATA Controller
> > having
> > : a
> > : > Class ID -0x01
> > : > Sub Class - 0x07
> > : > Programming Interface - 0x00
> > : > 
> > : > Hence instead of my probe function the Static build Card Bus
> Driver
> > : cbb
> > : > is attaching just by simply checking sub class 0x07 and
> programming
> > : > interface 0x00.hence my probe gets failed. Kindly help me in
> > resolving
> > : > this .what I thought is to add the card bus driver a checking of
> > CLASS
> > : > ID in its pci probe function.
> > : 
> > : The pccbb driver returns BUS_PROBE_DEFAULT (it should probably
> return
> > : GENERIC 
> > : in the case where it matches only on class codes).  Your driver just
> > : needs to 
> > : return a numerically higher value (but still < 0) to claim the
> device.
> > : You 
> > : can probably use BUS_PROBE_VENDOR or BUS_PROBE_DEFAULT + 1.
> > : 
> > : -- 
> > : John Baldwin
> > : 
> > : DISCLAIMER:
> > :
> >
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