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Date:      Sun, 24 May 2020 17:51:59 +0000
From:      Dan Kotowski <dan.kotowski@a9development.com>
To:        "greg@unrelenting.technology" <greg@unrelenting.technology>
Cc:        freebsd-arm <freebsd-arm@freebsd.org>
Subject:   Re: FreeBSD on Layerscape/QorIQ LX2160X
Message-ID:  <E--s8_xM_hJJRAijaqxUKLeL7ee6w3e6MiPuJVGhu4Xc1lmiRXbrPdOKFwJRN_Fc3EbNwoT3S96yjD_35P3NAgT0NXwxwIHMWURHBkjVZBE=@a9development.com>
In-Reply-To: <b5105ce888b7a91eff50ec9118a910a8@unrelenting.technology>
References:  <YI70eszO0ei1z8fnsDWQ7Cwt9u63BkXvIDMcBQ0XYj6gwcloNfare1sgktdUeO9cgby8KQk8v7EVqIOVigIwlnrPlcFDYAxgEJKcbZUyi2w=@a9development.com> <86119565e5927716a9feebabcb611871@unrelenting.technology> <f801aa134da12d1b4a34b87dbc180b4a@unrelenting.technology> <37858865a8ebddd3fe1e3a228a19ef62@unrelenting.technology> <7066da0bc417ed047dc27b4741c90e81@unrelenting.technology> <xoiJF1ZUP3-rgbxC8ZmJGQNpsJSyK4zsAXhbLl8Ml96Da1lBPGwPqn0ANf7q-GgthPAWePSR9QDCM5vKysd_3e2aGtp-0egUXu6AW3bhLDg=@a9development.com> <CANCZdfqbd_u35toFYKr4LKkCBwnRhutM5knjnVcGR018Jfo1Vw@mail.gmail.com> <664db38a87ea8803be72af9738534994@unrelenting.technology> <b5105ce888b7a91eff50ec9118a910a8@unrelenting.technology>

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> > > I also looked more closely at mps, and actually "just polling I/O" do=
es work. We see:
> > > mps0: IOCCapabilities: 1285c<ScsiTaskFull,DiagTrace,SnapBuf,EEDP,Tran=
sRetry,EventReplay,HostDisc>
> > > and that means mps_request_sync (called by mps_get_iocfacts) has work=
ed.
> > > And the command completion actually seems to come from interrupts.
> > > I've heard something about MSI(X) not working for the Linux people (n=
ot NetBSD though!),
> > > so I guess the next thing to try would be booting with hw.pci.enable_=
msi=3D0 hw.pci.enable_msi=3D1
> > > lol, I mean, hw.pci.enable_msi=3D0 hw.pci.enable_msix=3D0
> >
> > Still roughly the same: https://gist.github.com/agrajag9/9cb79fe1e53dd6=
e8f7dc09fe5f6236e9
> > And NVMe still panics during boot, so pulled that at least for now.
>
> I wonder if PCIe devices are just not getting interrupts and if that's re=
lated to AHCI not being able to configure interrupts.
>
> Added some debug logging for interrupts:
>
> https://send.firefox.com/download/828468ac751f8f69/#P1xKgL6IIqFOD-JBQFHnA=
w
>
> (test with mps, don't disable msi I guess since it didn't help)
>
> Also, to rule out firmware bugs, would be good to test Linux and NetBSD w=
ith the same firmware.
> (with NVMe, it's something that would definitely get attempted at boot)
>
> NetBSD -CURRENT: http://nycdn.netbsd.org/pub/NetBSD-daily/HEAD/latest/ima=
ges/NetBSD-9.99.63-evbarm-aarch64.iso
> They don't have memstick images for arm, unfortunately -- idk whether dd'=
ing an iso image to a usb drive
> would boot, probably not, try tools like rufus maybe.
> Or assemble your own memstick with what I assume is just the root filesys=
tem image:
> http://nycdn.netbsd.org/pub/NetBSD-daily/HEAD/latest/evbarm-aarch64/binar=
y/gzimg/arm64.img.gz
> plus the boot loader you'd have to place on the EFI partition manually
> http://nycdn.netbsd.org/pub/NetBSD-daily/HEAD/latest/evbarm-aarch64/insta=
llation/misc/bootaa64.efi

https://gist.github.com/agrajag9/2e07426702d46aa086348b70be942397

Flashing NetBSD to a new card now...



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