Where is IBMEBUS in makeconfig?

Where is IBMEBUS in makeconfig?

[Alison Schofield]

Need to load this module but cannot find IBMEBUS dependency in
makeconfig.  Appreciate the help!

	config INFINIBAND_EHCA
		tristate "eHCA support"
		depends on IBMEBUS


alison

Re: [Outreachy kernel] Where is IBMEBUS in makeconfig?

[Sudip Mukherjee]

On Thu, Oct 08, 2015 at 01:14:36AM -0700, Alison Schofield wrote:
> Need to load this module but cannot find IBMEBUS dependency in
> makeconfig.  Appreciate the help!
> 
> 	config INFINIBAND_EHCA
> 		tristate "eHCA support"
> 		depends on IBMEBUS

Looks like IBMEBUS is not there in staging tree, I checked linux-next
also and its not there even. That means this module cannot be built.

Maybe Greg knows what to do now... remove ehca folder as it has out of
tree dependency?

regards
sudip

Re: [Outreachy kernel] Where is IBMEBUS in makeconfig?

[Arnd Bergmann]

On Thursday 08 October 2015 13:56:32 Sudip Mukherjee wrote:
> On Thu, Oct 08, 2015 at 01:14:36AM -0700, Alison Schofield wrote:
> > Need to load this module but cannot find IBMEBUS dependency in
> > makeconfig.  Appreciate the help!
> > 
> >       config INFINIBAND_EHCA
> >               tristate "eHCA support"
> >               depends on IBMEBUS
> 
> Looks like IBMEBUS is not there in staging tree, I checked linux-next
> also and its not there even. That means this module cannot be built.
> 
> Maybe Greg knows what to do now... remove ehca folder as it has out of
> tree dependency?

$ git grep IBMEBUS
arch/powerpc/configs/ppc64_defconfig:CONFIG_IBMEBUS=y                                                    
arch/powerpc/configs/pseries_defconfig:CONFIG_IBMEBUS=y                                                  
arch/powerpc/include/asm/ibmebus.h:#endif /* _ASM_IBMEBUS_H */
arch/powerpc/kernel/Makefile:obj-$(CONFIG_IBMEBUS)           += ibmebus.o
arch/powerpc/kernel/ibmebus.c:#define IBMEBUS_BUS_PM_OPS_PTR    (&ibmebus_bus_dev_pm_ops)
arch/powerpc/kernel/ibmebus.c:#define IBMEBUS_BUS_PM_OPS_PTR    NULL
arch/powerpc/kernel/ibmebus.c:  .pm        = IBMEBUS_BUS_PM_OPS_PTR,
arch/powerpc/mm/hash_utils_64.c:#ifdef CONFIG_IBMEBUS
arch/powerpc/platforms/Kconfig:config IBMEBUS
drivers/net/ethernet/ibm/Kconfig:       depends on PPC_PSERIES || PPC_DCR || (IBMEBUS && SPARSEMEM)
drivers/net/ethernet/ibm/Kconfig:       depends on IBMEBUS && SPARSEMEM
drivers/staging/rdma/ehca/Kconfig:      depends on IBMEBUS

IBMEBUS is a construct from the times before device tree based nodes
would become platform devices implicitly. It is used for the GX/GX+/GX++
bus on POWER4 through POWER7 (but not the current POWER8), and usually
just connects PCIe cages adapters these days.

EHEA and EHCA are directly attached, and at least EHEA seems to still
be around and commonly used on older machines.

	Arnd

Re: [Outreachy kernel] Where is IBMEBUS in makeconfig?

[Greg KH]

On Thu, Oct 08, 2015 at 01:56:32PM +0530, Sudip Mukherjee wrote:
> On Thu, Oct 08, 2015 at 01:14:36AM -0700, Alison Schofield wrote:
> > Need to load this module but cannot find IBMEBUS dependency in
> > makeconfig.  Appreciate the help!
> > 
> > 	config INFINIBAND_EHCA
> > 		tristate "eHCA support"
> > 		depends on IBMEBUS
> 
> Looks like IBMEBUS is not there in staging tree, I checked linux-next
> also and its not there even. That means this module cannot be built.
> 
> Maybe Greg knows what to do now... remove ehca folder as it has out of
> tree dependency?

$ git grep -w IBMEBUS
arch/powerpc/platforms/Kconfig:config IBMEBUS
drivers/net/ethernet/ibm/Kconfig:       depends on PPC_PSERIES || PPC_DCR || (IBMEBUS && SPARSEMEM)
drivers/net/ethernet/ibm/Kconfig:       depends on IBMEBUS && SPARSEMEM
drivers/staging/rdma/ehca/Kconfig:      depends on IBMEBUS

Nothing "odd" about this, why the confusion?

greg k-h

Re: [Outreachy kernel] Where is IBMEBUS in makeconfig?

[Sudip Mukherjee]

On Thu, Oct 08, 2015 at 09:46:51AM +0100, Greg KH wrote:
> On Thu, Oct 08, 2015 at 01:56:32PM +0530, Sudip Mukherjee wrote:
> > On Thu, Oct 08, 2015 at 01:14:36AM -0700, Alison Schofield wrote:
> > > Need to load this module but cannot find IBMEBUS dependency in
> > > makeconfig.  Appreciate the help!
> > > 
> > > 	config INFINIBAND_EHCA
> > > 		tristate "eHCA support"
> > > 		depends on IBMEBUS
> > 
> > Looks like IBMEBUS is not there in staging tree, I checked linux-next
> > also and its not there even. That means this module cannot be built.
> > 
> > Maybe Greg knows what to do now... remove ehca folder as it has out of
> > tree dependency?
> 
> $ git grep -w IBMEBUS
> arch/powerpc/platforms/Kconfig:config IBMEBUS
> drivers/net/ethernet/ibm/Kconfig:       depends on PPC_PSERIES || PPC_DCR || (IBMEBUS && SPARSEMEM)
> drivers/net/ethernet/ibm/Kconfig:       depends on IBMEBUS && SPARSEMEM
> drivers/staging/rdma/ehca/Kconfig:      depends on IBMEBUS
> 
> Nothing "odd" about this, why the confusion?

Uhhhh .. sorry.. i just did git grep IBMEBUS drivers/ and could not find
it. Never thought of checking in the whole tree or atleast the arch
files.
Sory for the confusion.

regards
sudip