From: Choong Yong Liang <yong.liang.choong@linux.intel.com>
To: "Russell King (Oracle)" <linux@armlinux.org.uk>
Cc: "Simon Horman" <horms@kernel.org>,
"Jose Abreu" <joabreu@synopsys.com>,
"Jose Abreu" <Jose.Abreu@synopsys.com>,
"David E Box" <david.e.box@linux.intel.com>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Ingo Molnar" <mingo@redhat.com>,
"Borislav Petkov" <bp@alien8.de>,
"Dave Hansen" <dave.hansen@linux.intel.com>,
"H . Peter Anvin" <hpa@zytor.com>,
"Rajneesh Bhardwaj" <irenic.rajneesh@gmail.com>,
"David E Box" <david.e.box@intel.com>,
"Andrew Lunn" <andrew+netdev@lunn.ch>,
"David S . Miller" <davem@davemloft.net>,
"Eric Dumazet" <edumazet@google.com>,
"Jakub Kicinski" <kuba@kernel.org>,
"Paolo Abeni" <pabeni@redhat.com>,
"Maxime Coquelin" <mcoquelin.stm32@gmail.com>,
"Alexandre Torgue" <alexandre.torgue@foss.st.com>,
"Jiawen Wu" <jiawenwu@trustnetic.com>,
"Mengyuan Lou" <mengyuanlou@net-swift.com>,
"Heiner Kallweit" <hkallweit1@gmail.com>,
"Hans de Goede" <hdegoede@redhat.com>,
"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>,
"Richard Cochran" <richardcochran@gmail.com>,
"Serge Semin" <fancer.lancer@gmail.com>,
x86@kernel.org, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, platform-driver-x86@vger.kernel.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH net-next v7 2/7] net: pcs: xpcs: re-initiate clause 37 Auto-negotiation
Date: Thu, 20 Feb 2025 10:12:14 +0800 [thread overview]
Message-ID: <be0689a5-2202-4231-9e97-49e9576236a2@linux.intel.com> (raw)
In-Reply-To: <Z6TVmdCZeWerAZKP@shell.armlinux.org.uk>
On 6/2/2025 11:30 pm, Russell King (Oracle) wrote:
> Also, if the reset is required, what happens if we're already using
> SGMII, but AN has been disabled temporarily and is then re-enabled?
> Is a reset required?
>
Hi Russell,
When we use SGMII with XPCS, the AN is disabled and then re-enabled. This
process does not involve any PCS configuration, so a reset is not required.
I tested it with stmmac (dwmac5) + xpcs + Marvell (88E1510) PHY, and it
works fine when AN is temporarily disabled and then re-enabled without a reset.
next prev parent reply other threads:[~2025-02-20 2:14 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-06 13:18 [PATCH net-next v7 0/7] Enable SGMII and 2500BASEX interface mode switching for Intel platforms Choong Yong Liang
2025-02-06 13:18 ` [PATCH net-next v7 1/7] net: phylink: use pl->link_interface in phylink_expects_phy() Choong Yong Liang
2025-02-06 13:18 ` [PATCH net-next v7 2/7] net: pcs: xpcs: re-initiate clause 37 Auto-negotiation Choong Yong Liang
2025-02-06 15:30 ` Russell King (Oracle)
2025-02-07 9:20 ` Choong Yong Liang
2025-02-07 13:32 ` Andrew Lunn
2025-02-08 3:33 ` Choong Yong Liang
2025-02-20 2:12 ` Choong Yong Liang [this message]
2025-02-06 13:18 ` [PATCH net-next v7 3/7] arch: x86: add IPC mailbox accessor function and add SoC register access Choong Yong Liang
2025-02-06 16:46 ` Dave Hansen
2025-02-06 22:48 ` Andrew Lunn
2025-02-19 17:01 ` David E. Box
2025-02-20 2:29 ` Choong Yong Liang
2025-02-06 13:18 ` [PATCH net-next v7 4/7] stmmac: intel: configure SerDes according to the interface mode Choong Yong Liang
2025-02-06 13:31 ` Ilpo Järvinen
2025-02-07 9:53 ` Choong Yong Liang
2025-02-06 13:18 ` [PATCH net-next v7 5/7] net: stmmac: configure SerDes on mac_finish Choong Yong Liang
2025-02-06 13:18 ` [PATCH net-next v7 6/7] stmmac: intel: interface switching support for EHL platform Choong Yong Liang
2025-02-06 13:18 ` [PATCH net-next v7 7/7] stmmac: intel: interface switching support for ADL-N platform Choong Yong Liang
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