Linux-ACPI Archive on lore.kernel.org
 help / color / Atom feed
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
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

  parent reply index

Thread overview: 49+ 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
2020-07-15  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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CABdtJHtpSGWBZh2A7XA8hMmRetow8XsHBUORLo-hD8Bn+WEmdw@mail.gmail.com \
    --to=jon@solid-run.com \
    --cc=andrew@lunn.ch \
    --cc=andy.shevchenko@gmail.com \
    --cc=calvin.johnson@oss.nxp.com \
    --cc=cristian.sovaiala@nxp.com \
    --cc=f.fainelli@gmail.com \
    --cc=ioana.ciornei@nxp.com \
    --cc=jeremy.linton@arm.com \
    --cc=linux-acpi@vger.kernel.org \
    --cc=linux.cj@gmail.com \
    --cc=linux@armlinux.org.uk \
    --cc=madalin.bucur@oss.nxp.com \
    --cc=netdev@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-ACPI Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-acpi/0 linux-acpi/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-acpi linux-acpi/ https://lore.kernel.org/linux-acpi \
		linux-acpi@vger.kernel.org
	public-inbox-index linux-acpi

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-acpi


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git