From: Russell King - ARM Linux admin <linux@armlinux.org.uk>
To: Ioana Ciornei <ioana.ciornei@nxp.com>
Cc: netdev@vger.kernel.org, davem@davemloft.net,
vladimir.oltean@nxp.com, claudiu.manoil@nxp.com,
alexandru.marginean@nxp.com, michael@walle.cc, andrew@lunn.ch,
f.fainelli@gmail.com, olteanv@gmail.com
Subject: Re: [PATCH net-next v3 0/9] net: phy: add Lynx PCS MDIO module
Date: Mon, 22 Jun 2020 10:29:45 +0100 [thread overview]
Message-ID: <20200622092944.GB1551@shell.armlinux.org.uk> (raw)
In-Reply-To: <20200621225451.12435-1-ioana.ciornei@nxp.com>
On Mon, Jun 22, 2020 at 01:54:42AM +0300, Ioana Ciornei wrote:
> Add support for the Lynx PCS as a separate module in drivers/net/phy/.
> The advantage of this structure is that multiple ethernet or switch
> drivers used on NXP hardware (ENETC, Felix DSA switch etc) can share the
> same implementation of PCS configuration and runtime management.
>
> The PCS is represented as an mdio_device and the callbacks exported are
> highly tied with PHYLINK and can't be used without it.
>
> The first 3 patches add some missing pieces in PHYLINK and the locked
> mdiobus write accessor. Next, the Lynx PCS MDIO module is added as a
> standalone module. The majority of the code is extracted from the Felix
> DSA driver. The last patch makes the necessary changes in the Felix
> driver in order to use the new common PCS implementation.
>
> At the moment, USXGMII (only with in-band AN and speeds up to 2500),
> SGMII, QSGMII (with and without in-band AN) and 2500Base-X (only w/o
> in-band AN) are supported by the Lynx PCS MDIO module since these were
> also supported by Felix and no functional change is intended at this
> time.
Overall, I think we need to sort out the remaining changes in phylink
before moving forward with this patch set - I've made some progress
with Florian and the Broadcom DSA switches late last night. I'm now
working on updating the felix DSA driver.
There's another reason - having looked at the work I did with this
same PHY, I think you are missing configuration of the link timer,
which is different in SGMII and 1000BASE-X. Please can you look at
the code I came up with? "dpaa2-mac: add 1000BASE-X/SGMII PCS support".
Thanks.
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!
next prev parent reply other threads:[~2020-06-22 9:29 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-21 22:54 [PATCH net-next v3 0/9] net: phy: add Lynx PCS MDIO module Ioana Ciornei
2020-06-21 22:54 ` [PATCH net-next v3 1/9] net: phylink: add interface to configure clause 22 PCS PHY Ioana Ciornei
2020-06-21 22:54 ` [PATCH net-next v3 2/9] net: phylink: consider QSGMII interface mode in phylink_mii_c22_pcs_get_state Ioana Ciornei
2020-06-21 22:54 ` [PATCH net-next v3 3/9] net: mdiobus: add clause 45 mdiobus write accessor Ioana Ciornei
2020-06-21 22:54 ` [PATCH net-next v3 4/9] net: phy: add Lynx PCS module Ioana Ciornei
2020-06-22 10:12 ` Russell King - ARM Linux admin
2020-06-23 11:49 ` Ioana Ciornei
2020-06-23 12:03 ` Russell King - ARM Linux admin
2020-06-22 23:04 ` Russell King - ARM Linux admin
2020-06-21 22:54 ` [PATCH net-next v3 5/9] net: dsa: add support for phylink_pcs_ops Ioana Ciornei
2020-06-22 10:22 ` Russell King - ARM Linux admin
2020-06-22 11:10 ` Russell King - ARM Linux admin
2020-06-22 12:16 ` Russell King - ARM Linux admin
2020-06-22 12:35 ` Ioana Ciornei
2020-06-22 13:14 ` Russell King - ARM Linux admin
2020-06-22 13:51 ` Ioana Ciornei
2020-06-22 14:07 ` Russell King - ARM Linux admin
2020-06-21 22:54 ` [PATCH net-next v3 6/9] net: dsa: felix: unconditionally configure MAC speed to 1000Mbps Ioana Ciornei
2020-06-21 22:54 ` [PATCH net-next v3 7/9] net: dsa: felix: set proper pause frame timers based on link speed Ioana Ciornei
2020-06-21 22:54 ` [PATCH net-next v3 8/9] net: dsa: felix: use resolved link config in mac_link_up() Ioana Ciornei
2020-06-21 22:54 ` [PATCH net-next v3 9/9] net: dsa: felix: use the Lynx PCS helpers Ioana Ciornei
2020-06-22 9:29 ` Russell King - ARM Linux admin [this message]
2020-06-22 9:34 ` [PATCH net-next v3 0/9] net: phy: add Lynx PCS MDIO module Vladimir Oltean
2020-06-30 6:01 ` Michael Walle
2020-07-01 13:37 ` Vladimir Oltean
2020-07-01 13:49 ` Michael Walle
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