From: Jon Nettleton <jon@solid-run.com>
To: Andrew Lunn <andrew@lunn.ch>
Cc: Jeremy Linton <jeremy.linton@arm.com>,
Calvin Johnson <calvin.johnson@oss.nxp.com>,
Russell King - ARM Linux admin <linux@armlinux.org.uk>,
Cristi Sovaiala <cristian.sovaiala@nxp.com>,
Ioana Ciornei <ioana.ciornei@nxp.com>,
Andy Shevchenko <andy.shevchenko@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Madalin Bucur <madalin.bucur@oss.nxp.com>,
"<netdev@vger.kernel.org>" <netdev@vger.kernel.org>,
linux.cj@gmail.com,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>
Subject: Re: [net-next PATCH v7 1/6] Documentation: ACPI: DSD: Document MDIO PHY
Date: Mon, 27 Jul 2020 19:32:48 +0200 [thread overview]
Message-ID: <CABdtJHtpSGWBZh2A7XA8hMmRetow8XsHBUORLo-hD8Bn+WEmdw@mail.gmail.com> (raw)
In-Reply-To: <20200724191436.GH1594328@lunn.ch>
On Fri, Jul 24, 2020 at 9:14 PM Andrew Lunn <andrew@lunn.ch> wrote:
>
> > Hence my previous comment that we should consider this an escape
> > hatch rather than the last word in how to describe networking on
> > ACPI/SBSA platforms.
>
> One problem i have is that this patch set suggests ACPI can be used to
> describe complex network hardware. It is opening the door for others
> to follow and add more ACPI support in networking. How long before it
> is not considered an escape hatch, but the front door?
>
> For an example, see
>
> https://patchwork.ozlabs.org/project/netdev/patch/1595417547-18957-3-git-send-email-vikas.singh@puresoftware.com/
>
> It is hard to see what the big picture is here. The [0/2] patch is not
> particularly good. But it makes it clear that people are wanting to
> add fixed-link PHYs into ACPI. These are pseudo devices, used to make
> the MAC think it is connected to a PHY when it is not. The MAC still
> gets informed of link speed, etc via the standard PHYLIB API. They are
> mostly used for when the Ethernet MAC is directly connected to an
> Ethernet Switch, at a MAC to MAC level.
>
> Now i could be wrong, but are Ethernet switches something you expect
> to see on ACPI/SBSA platforms? Or is this a legitimate use of the
> escape hatch?
I think with the rise in adoption of Smart-NICs in datacenters there
will definitely be a lot more crossover between ACPI/SBSA and network
appliance oriented hardware.
-Jon
next prev parent reply other threads:[~2020-07-27 17:33 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-15 9:03 [net-next PATCH v7 0/6] ACPI support for dpaa2 MAC driver Calvin Johnson
2020-07-15 9:03 ` [net-next PATCH v7 1/6] Documentation: ACPI: DSD: Document MDIO PHY Calvin Johnson
2020-07-16 3:04 ` Florian Fainelli
2020-07-16 3:11 ` Andrew Lunn
2020-07-23 23:26 ` Jeremy Linton
2020-07-24 13:39 ` Andrew Lunn
2020-07-24 17:26 ` Jeremy Linton
2020-07-24 17:39 ` Florian Fainelli
2020-07-24 19:20 ` Andrew Lunn
2020-07-24 20:12 ` Andy Shevchenko
2020-07-24 20:13 ` Florian Fainelli
2020-07-24 20:20 ` Andy Shevchenko
2020-07-25 7:36 ` Calvin Johnson
2020-07-25 10:48 ` Andy Shevchenko
2020-07-24 21:06 ` Russell King - ARM Linux admin
2020-07-27 17:03 ` Sudeep Holla
2020-07-24 19:14 ` Andrew Lunn
2020-07-27 17:21 ` Sudeep Holla
2020-07-28 20:34 ` Andrew Lunn
2020-07-28 20:59 ` Russell King - ARM Linux admin
2020-07-28 21:26 ` Andy Shevchenko
2020-07-29 16:00 ` Rafael J. Wysocki
2020-07-31 15:08 ` Andrew Lunn
2020-07-27 17:32 ` Jon Nettleton [this message]
[not found] ` <1595922651-sup-5323@galangal.danc.bne.opengear.com>
2020-07-28 20:45 ` Andrew Lunn
2020-07-28 20:56 ` Florian Fainelli
2020-07-28 21:28 ` Andy Shevchenko
2020-07-28 21:40 ` Florian Fainelli
2020-07-31 15:14 ` Andrew Lunn
2020-09-25 13:22 ` Grant Likely
2020-07-28 22:30 ` Jeremy Linton
2020-07-29 0:39 ` Florian Fainelli
2020-07-29 2:53 ` Jeremy Linton
2020-07-29 3:16 ` Florian Fainelli
2020-07-29 8:43 ` Jon Nettleton
2020-07-29 9:39 ` Calvin Johnson
2020-09-25 13:34 ` Grant Likely
2020-09-26 4:30 ` Calvin Johnson
2020-09-29 5:17 ` Calvin Johnson
2020-09-29 13:43 ` Andrew Lunn
2020-09-29 13:55 ` Andy Shevchenko
2020-09-29 14:32 ` Andrew Lunn
2020-09-29 14:46 ` Andy Shevchenko
2020-09-29 15:06 ` Andrew Lunn
2020-09-29 15:29 ` Arnd Bergmann
2020-09-29 14:44 ` Arnd Bergmann
2020-09-29 14:59 ` Andrew Lunn
2020-09-29 15:59 ` Grant Likely
2020-09-29 15:53 ` Grant Likely
2020-09-29 16:04 ` Calvin Johnson
2020-07-15 9:03 ` [net-next PATCH v7 2/6] net: phy: introduce device_mdiobus_register() Calvin Johnson
2020-07-16 3:05 ` Florian Fainelli
2020-07-15 9:03 ` [net-next PATCH v7 3/6] net/fsl: use device_mdiobus_register() Calvin Johnson
2020-07-16 3:05 ` Florian Fainelli
2020-07-15 9:03 ` [net-next PATCH v7 4/6] net: phy: introduce phy_find_by_mdio_handle() Calvin Johnson
2020-07-16 3:06 ` Florian Fainelli
2020-07-15 9:03 ` [net-next PATCH v7 5/6] phylink: introduce phylink_fwnode_phy_connect() Calvin Johnson
2020-07-15 9:04 ` [net-next PATCH v7 6/6] net: dpaa2-mac: Add ACPI support for DPAA2 MAC driver Calvin Johnson
2020-09-25 13:39 ` [net-next PATCH v7 0/6] ACPI support for dpaa2 " Grant Likely
2020-09-26 4:34 ` Calvin Johnson
2020-07-25 14:23 Calvin Johnson
2020-07-25 14:23 ` [net-next PATCH v7 1/6] Documentation: ACPI: DSD: Document MDIO PHY Calvin Johnson
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