linux-kernel - Re: [PATCH 1/1] net/mlx5: Convert PCI error values to generic errnos

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Message-ID: <ZN1JsroNi8iKSGNf@x130>
Date:   Wed, 16 Aug 2023 15:12:02 -0700
From:   Saeed Mahameed <saeedm@...dia.com>
To:     Bjorn Helgaas <helgaas@...nel.org>
Cc:     Saeed Mahameed <saeed@...nel.org>,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
        linux-pci@...r.kernel.org, Leon Romanovsky <leon@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Moshe Shemesh <moshe@...lanox.com>, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] net/mlx5: Convert PCI error values to generic errnos

On 16 Aug 17:04, Bjorn Helgaas wrote:
>On Wed, Aug 16, 2023 at 02:45:15PM -0700, Saeed Mahameed wrote:
>> On 14 Aug 17:32, Bjorn Helgaas wrote:
>> > On Mon, Aug 14, 2023 at 04:27:20PM +0300, Ilpo Järvinen wrote:
>> > > mlx5_pci_link_toggle() returns mix PCI specific error codes and generic
>> > > errnos.
>> > >
>> > > Convert the PCI specific error values to generic errno using
>> > > pcibios_err_to_errno() before returning them.
>> > >
>> > > Fixes: eabe8e5e88f5 ("net/mlx5: Handle sync reset now event")
>> > > Fixes: 212b4d7251c1 ("net/mlx5: Wait for firmware to enable CRS before pci_restore_state")
>> > > Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
>> > >
>> > > ---
>> > >
>> > > Maintainers beware, this will conflict with read+write -> set/clear_word
>> > > fixes in pci.git/pcie-rmw. As such, it might be the easiest for Bjorn to
>> > > take it instead of net people.
>> >
>> > I provisionally rebased and applied it on pci/pcie-rmw.  Take a look
>> > and make sure I didn't botch it -- I also found a case in
>> > mlx5_check_dev_ids() that looks like it needs the same conversion.
>> >
>> > The commit as applied is below.
>> >
>> > If networking folks would prefer to take this, let me know and I can
>> > drop it.
>>
>> I Just took this patch into my mlx5 submission queue and sent it to netdev
>> tree, please drop it from your tree.
>
>OK, will do.  Note that this will generate a conflict between netdev
>and the PCI tree during the merge window.
>

In such case let me drop it and you submit it, I was worried it will
conflict with another ongoing feature in mlx5, but I am almost sure it
won't be ready this cycle, so no reason to panic, you can take the patch to
the pci tree and I will revise my PR, it's not too late.

>Bjorn