netdev - Re: [PATCH net-next 05/11] bnxt_en: Add hw addr and multihost base hw addr to devlink info

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Date:   Wed, 18 Mar 2020 09:46:46 +0530
From:   Vasundhara Volam <vasundhara-v.volam@...adcom.com>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     David Miller <davem@...emloft.net>,
        Netdev <netdev@...r.kernel.org>,
        Michael Chan <michael.chan@...adcom.com>
Subject: Re: [PATCH net-next 05/11] bnxt_en: Add hw addr and multihost base hw
 addr to devlink info_get cb.

On Tue, Mar 17, 2020 at 11:17 PM Jakub Kicinski <kuba@...nel.org> wrote:
>
> On Tue, 17 Mar 2020 20:44:42 +0530 Vasundhara Volam wrote:
> > In most of the scenarios, device serial number is not supported. So
> > MAC address is used for proper asset tracking by cloud customers. In
> > case of multihost NICs, base MAC address is unique for entire NIC and
> > this can be used for asset tracking. Add the multihost base MAC address
> > and interface MAC address information to info_get command.
> >
> > Also update bnxt.rst documentation file.
> >
> > Example display:
> >
> > $ devlink dev info pci/0000:3b:00.1
> > pci/0000:3b:00.1:
> >   driver bnxt_en
> >   serial_number B0-26-28-FF-FE-C8-85-20
> >   versions:
> >       fixed:
> >         asic.id 1750
> >         asic.rev 1
> >       running:
> >         drv.spec 1.10.1.12
> >         hw.addr b0:26:28:c8:85:21
> >         hw.mh_base_addr b0:26:28:c8:85:20
> >         fw 216.0.286.0
> >         fw.psid 0.0.6
> >         fw.app 216.0.251.0
> >
> > Signed-off-by: Vasundhara Volam <vasundhara-v.volam@...adcom.com>
> > Signed-off-by: Michael Chan <michael.chan@...adcom.com>
>
> Nack.
>
> Make a proper serial number for the device, the point of common
> Linux interfaces is to abstract differences between vendors. You
> basically say "Broadcom is special, we will use our own identifier".
I thought only couple of vendors support multi-host NICs, so made this
macro as vendor specific. If it will be widely used, I will make it a generic
macro.

>
> Also how is this a running version if it's supposed to be used for
> asset management.
My mistake, will fix it to fixed version.

Thanks,
Vasundhara