> If you have a PCIe device that you can use with the 370 rd.
Sorry, nothing on its bus.
The only device i have which might make sense testing is a
WRT1900ac. That has an Armada XP dual core. I could try building a UP
kernel for it, but i guess you have tried that already with your
machine in order to test a UP setup?
Andrew
On Fri, 22 Apr 2022 at 22:19, Andrew Lunn <[email protected]> wrote:
>
> > If you have a PCIe device that you can use with the 370 rd.
>
> Sorry, nothing on its bus.
>
> The only device i have which might make sense testing is a
> WRT1900ac. That has an Armada XP dual core. I could try building a UP
> kernel for it, but i guess you have tried that already with your
> machine in order to test a UP setup?
I have tested with SMP=n on a Armada 385 without any issues. So no
need to do that on the Armada XP.
There is still value in testing on the WRT1900ac device since so far I
have only tested on a Armada 385. The Armada XP does have
registers/etc. of the MPIC very similar to the 370, compared to the
385 having some significant differences. So if it is not too
problematic to test on (it appears to have its wifi attached via
PCIe?) please do.
Thanks,
Nathan
>
> Andrew
On Fri, Apr 22, 2022 at 10:58:23PM +1000, Nathan Rossi wrote:
> On Fri, 22 Apr 2022 at 22:19, Andrew Lunn <[email protected]> wrote:
> >
> > > If you have a PCIe device that you can use with the 370 rd.
> >
> > Sorry, nothing on its bus.
> >
> > The only device i have which might make sense testing is a
> > WRT1900ac. That has an Armada XP dual core. I could try building a UP
> > kernel for it, but i guess you have tried that already with your
> > machine in order to test a UP setup?
>
> I have tested with SMP=n on a Armada 385 without any issues. So no
> need to do that on the Armada XP.
>
> There is still value in testing on the WRT1900ac device since so far I
> have only tested on a Armada 385. The Armada XP does have
> registers/etc. of the MPIC very similar to the 370, compared to the
> 385 having some significant differences. So if it is not too
> problematic to test on (it appears to have its wifi attached via
> PCIe?) please do.
Hi Nathan
Turns out the WiFi drivers are in a sorry state. There is no mainline
driver. There is an OpenWRT driver, but it has not been updated for a
few years, tries to use get_fs() set_fs() pci_map_single() etc.
I've mostly used this platform for Ethernet switch development, so
i've never tried the WiFi before. I had no idea it was so broken...
So sorry, i cannot test this.
Andrew
On Sun, 24 Apr 2022 at 02:21, Andrew Lunn <[email protected]> wrote:
>
> On Fri, Apr 22, 2022 at 10:58:23PM +1000, Nathan Rossi wrote:
> > On Fri, 22 Apr 2022 at 22:19, Andrew Lunn <[email protected]> wrote:
> > >
> > > > If you have a PCIe device that you can use with the 370 rd.
> > >
> > > Sorry, nothing on its bus.
> > >
> > > The only device i have which might make sense testing is a
> > > WRT1900ac. That has an Armada XP dual core. I could try building a UP
> > > kernel for it, but i guess you have tried that already with your
> > > machine in order to test a UP setup?
> >
> > I have tested with SMP=n on a Armada 385 without any issues. So no
> > need to do that on the Armada XP.
> >
> > There is still value in testing on the WRT1900ac device since so far I
> > have only tested on a Armada 385. The Armada XP does have
> > registers/etc. of the MPIC very similar to the 370, compared to the
> > 385 having some significant differences. So if it is not too
> > problematic to test on (it appears to have its wifi attached via
> > PCIe?) please do.
>
> Hi Nathan
>
> Turns out the WiFi drivers are in a sorry state. There is no mainline
> driver. There is an OpenWRT driver, but it has not been updated for a
> few years, tries to use get_fs() set_fs() pci_map_single() etc.
>
> I've mostly used this platform for Ethernet switch development, so
> i've never tried the WiFi before. I had no idea it was so broken...
>
> So sorry, i cannot test this.
Thanks for giving it a try.
I managed to source an existing one of our products that uses an
Armada 370 with a PCIe device attached. Took me a bit to get a recent
kernel booting on it, however I was able to confirm that this MSI
affinity change works correctly on the 370 SoC (with and without
CONFIG_SMP).
Regards,
Nathan