netdev - Re: [EXT] Re: [PATCH v2 net-next 1/2] bnx2x: Utilize firmware 7.13.21.0

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Date:   Thu, 10 Mar 2022 10:52:32 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Manish Chopra <manishc@...vell.com>
Cc:     Paul Menzel <pmenzel@...gen.mpg.de>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Ariel Elior <aelior@...vell.com>,
        Alok Prasad <palok@...vell.com>,
        Prabhakar Kushwaha <pkushwaha@...vell.com>,
        "David S. Miller" <davem@...emloft.net>,
        Greg KH <gregkh@...uxfoundation.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        "it+netdev@...gen.mpg.de" <it+netdev@...gen.mpg.de>,
        "regressions@...ts.linux.dev" <regressions@...ts.linux.dev>
Subject: Re: [EXT] Re: [PATCH v2 net-next 1/2] bnx2x: Utilize firmware
 7.13.21.0

On Wed, 9 Mar 2022 14:18:23 -0800 Linus Torvalds wrote:
> On Wed, Mar 9, 2022 at 11:46 AM Manish Chopra <manishc@...vell.com> wrote:
> >
> > This has not changed anything functionally from driver/device perspective, FW is still being loaded only when device is opened.
> > bnx2x_init_firmware() [I guess, perhaps the name is misleading] just request_firmware() to prepare the metadata to be used when device will be opened.  
> 
> So how do you explain the report by Paul Menzel that things used to
> work and no longer work now?
> 
> You can't do request_firmware() early. When you actually then push the
> firmware to the device is immaterial - but request_firmware() has to
> be done after the system is up and running.

Alright, I don't see a revert in my inbox, so let me double check.

Linus, is my understanding correct that our PR today should revert
the patches in question [1]? Or just drop them from stable for now, 
and give Manish and team a week or two to figure out a fix?

Manish, assuming it's the former - would you be able to provide 
a revert within a couple of hours (and I mean  "couple" in the 
British sense of roughly two)?

[1] patches in question:
 e13ad1443684 ("bnx2x: fix driver load from initrd")
 802d4d207e75 ("bnx2x: Invalidate fastpath HSI version for VFs")
 b7a49f73059f ("bnx2x: Utilize firmware 7.13.21.0")