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

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> -----Original Message-----
> From: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
> Sent: Thursday, March 10, 2022 12:55 AM
> To: Manish Chopra <manishc@xxxxxxxxxxx>
> Cc: Paul Menzel <pmenzel@xxxxxxxxxxxxx>; kuba@xxxxxxxxxx;
> netdev@xxxxxxxxxxxxxxx; Ariel Elior <aelior@xxxxxxxxxxx>; Alok Prasad
> <palok@xxxxxxxxxxx>; Prabhakar Kushwaha <pkushwaha@xxxxxxxxxxx>;
> David S. Miller <davem@xxxxxxxxxxxxx>; Greg KH
> <gregkh@xxxxxxxxxxxxxxxxxxx>; stable@xxxxxxxxxxxxxxx;
> it+netdev@xxxxxxxxxxxxx; regressions@xxxxxxxxxxxxxxx
> Subject: Re: [EXT] Re: [PATCH v2 net-next 1/2] bnx2x: Utilize firmware
> 7.13.21.0
> 
> On Wed, Mar 9, 2022 at 11:22 AM Manish Chopra <manishc@xxxxxxxxxxx>
> wrote:
> >
> > This move was intentional, as follow up driver flow
> > [bnx2x_compare_fw_ver()] needs to know which exact FW version (newer
> > or older fw version which will be decided at run time now) the function is
> supposed to be run with in order to compare against already loaded FW on
> the adapter to decide on function probe/init failure (as opposed to earlier
> where driver was always stick to the one specific/fixed firmware version). So
> for that reason I chose the right place to invoke the bnx2x_init_firmware()
> during the probe early instead of later stage.
> 
> .. but since that fundamentally DOES NOT WORK, we'll clearly have to revert
> that change.
> 
> Firmware loading cannot happen early in boot. End of story. You need to delay
> firmware loading until the device is actually opened.
> 
>                                  Linus

Hello Linus,

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.

Thanks,
Manish














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