From: "Oliver O'Halloran" <oohall@gmail.com>
To: Alexey Kardashevskiy <aik@ozlabs.ru>
Cc: linuxppc-dev <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [PATCH 12/15] powerpc/powernv/sriov: De-indent setup and teardown
Date: Wed, 15 Jul 2020 14:46:36 +1000 [thread overview]
Message-ID: <CAOSf1CGdGQ0cFNmfL=gVNcqX+JhT_W=73UWYd6aVourvtEs4ow@mail.gmail.com> (raw)
In-Reply-To: <f97edf44-0029-5a33-0cff-7067a81f10ba@ozlabs.ru>
On Wed, Jul 15, 2020 at 2:41 PM Alexey Kardashevskiy <aik@ozlabs.ru> wrote:
>
>
>
> On 15/07/2020 14:21, Oliver O'Halloran wrote:
> > On Wed, Jul 15, 2020 at 2:00 PM Alexey Kardashevskiy <aik@ozlabs.ru> wrote:
> >>
> >>
> >> or we could just skip setting
> >>
> >> ppc_md.pcibios_sriov_enable = pnv_pcibios_sriov_enable;
> >>
> >> for uninteresting platforms in pnv_pci_init_ioda_phb().
> >
> > I don't think so. ppc_md is per-platform, not per-PHB andw e still
> > have to deal with a mixture of IODA/NVLink/OpenCAPI PHBs on a single
> > system.
>
> NVLink/OpenCAPI won't have SRIOV devices.
...OR WILL THEY?
> Other types won't appear on
> the same platform simultaneously. It is not too clean, yes.
Sure, my point is that's a per-PHB setting rather than a per-platform
one so we should set it up like that.
> > We could make it a callback in pnv_phb, but it seemed like
> > more indirection than it's worth.
>
> I genuinely dislike how we use ppc_md so removing things from it is
> definitely a good thing.
you wouldn't be able to get rid of it. We'd have something like what
we have for the existing pcibios calls where there's a "generic" one
that bounces it to a member of pci_controller_ops, which then bounces
it to the pnv_phb method. It's bad and I hate it.
>
>
> --
> Alexey
next prev parent reply other threads:[~2020-07-15 4:48 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-10 5:23 PowerNV PCI & SR-IOV cleanups Oliver O'Halloran
2020-07-10 5:23 ` [PATCH 01/15] powernv/pci: Add pci_bus_to_pnvhb() helper Oliver O'Halloran
2020-07-13 8:28 ` Alexey Kardashevskiy
2020-07-10 5:23 ` [PATCH 02/15] powerpc/powernv/pci: Always tear down DMA windows on PE release Oliver O'Halloran
2020-07-13 8:30 ` Alexey Kardashevskiy
2020-07-10 5:23 ` [PATCH 03/15] powerpc/powernv/pci: Add explicit tracking of the DMA setup state Oliver O'Halloran
2020-07-14 5:37 ` Alexey Kardashevskiy
2020-07-14 5:58 ` Oliver O'Halloran
2020-07-14 7:21 ` Alexey Kardashevskiy
2020-07-15 0:23 ` Alexey Kardashevskiy
2020-07-15 1:38 ` Oliver O'Halloran
2020-07-15 3:33 ` Alexey Kardashevskiy
2020-07-15 7:05 ` Cédric Le Goater
2020-07-15 9:00 ` Oliver O'Halloran
2020-07-15 10:05 ` Cédric Le Goater
2020-07-10 5:23 ` [PATCH 04/15] powerpc/powernv/pci: Initialise M64 for IODA1 as a 1-1 window Oliver O'Halloran
2020-07-14 7:39 ` Alexey Kardashevskiy
2020-07-10 5:23 ` [PATCH 05/15] powerpc/powernv/sriov: Move SR-IOV into a seperate file Oliver O'Halloran
2020-07-14 9:16 ` Alexey Kardashevskiy
2020-07-22 5:01 ` Oliver O'Halloran
2020-07-22 9:53 ` Alexey Kardashevskiy
2020-07-10 5:23 ` [PATCH 06/15] powerpc/powernv/sriov: Explain how SR-IOV works on PowerNV Oliver O'Halloran
2020-07-15 0:40 ` Alexey Kardashevskiy
2020-07-10 5:23 ` [PATCH 07/15] powerpc/powernv/sriov: Rename truncate_iov Oliver O'Halloran
2020-07-15 0:46 ` Alexey Kardashevskiy
2020-07-10 5:23 ` [PATCH 08/15] powerpc/powernv/sriov: Simplify used window tracking Oliver O'Halloran
2020-07-15 1:34 ` Alexey Kardashevskiy
2020-07-15 1:41 ` Oliver O'Halloran
2020-07-10 5:23 ` [PATCH 09/15] powerpc/powernv/sriov: Factor out M64 BAR setup Oliver O'Halloran
2020-07-15 2:09 ` Alexey Kardashevskiy
2020-07-10 5:23 ` [PATCH 10/15] powerpc/powernv/pci: Refactor pnv_ioda_alloc_pe() Oliver O'Halloran
2020-07-15 2:29 ` Alexey Kardashevskiy
2020-07-15 2:53 ` Oliver O'Halloran
2020-07-15 3:15 ` Alexey Kardashevskiy
2020-07-10 5:23 ` [PATCH 11/15] powerpc/powernv/sriov: Drop iov->pe_num_map[] Oliver O'Halloran
2020-07-15 3:31 ` Alexey Kardashevskiy
2020-07-10 5:23 ` [PATCH 12/15] powerpc/powernv/sriov: De-indent setup and teardown Oliver O'Halloran
2020-07-15 4:00 ` Alexey Kardashevskiy
2020-07-15 4:21 ` Oliver O'Halloran
2020-07-15 4:41 ` Alexey Kardashevskiy
2020-07-15 4:46 ` Oliver O'Halloran [this message]
2020-07-15 4:58 ` Alexey Kardashevskiy
2020-07-10 5:23 ` [PATCH 13/15] powerpc/powernv/sriov: Move M64 BAR allocation into a helper Oliver O'Halloran
2020-07-15 4:02 ` Alexey Kardashevskiy
2020-07-10 5:23 ` [PATCH 14/15] powerpc/powernv/sriov: Refactor M64 BAR setup Oliver O'Halloran
2020-07-15 4:50 ` Alexey Kardashevskiy
2020-07-10 5:23 ` [PATCH 15/15] powerpc/powernv/sriov: Make single PE mode a per-BAR setting Oliver O'Halloran
2020-07-15 5:24 ` Alexey Kardashevskiy
2020-07-15 6:16 ` Oliver O'Halloran
2020-07-15 8:00 ` Alexey Kardashevskiy
2020-07-22 5:39 ` Oliver O'Halloran
2020-07-22 10:06 ` Alexey Kardashevskiy
2020-07-24 3:40 ` Oliver O'Halloran
2020-07-10 6:45 ` PowerNV PCI & SR-IOV cleanups Christoph Hellwig
2020-07-10 12:45 ` Oliver O'Halloran
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