From: Nicolas Ferre <nicolas.ferre@microchip.com>
To: Sean Anderson <sean.anderson@seco.com>, <netdev@vger.kernel.org>,
"David S . Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>, <linux-kernel@vger.kernel.org>,
Russell King <linux@armlinux.org.uk>
Cc: Andrew Lunn <andrew@lunn.ch>,
Heiner Kallweit <hkallweit1@gmail.com>,
Claudiu Beznea <claudiu.beznea@microchip.com>
Subject: Re: [RFC net-next PATCH 08/16] net: macb: Clean up macb_validate
Date: Thu, 7 Oct 2021 15:22:04 +0200 [thread overview]
Message-ID: <b1401da6-5bab-2e4c-e667-aca0bbf013dc@microchip.com> (raw)
In-Reply-To: <20211004191527.1610759-9-sean.anderson@seco.com>
On 04/10/2021 at 21:15, Sean Anderson wrote:
> While we're on the subject, could someone clarify the relationship
> between the various speed capabilities? What's the difference between
> MACB_CAPS_GIGABIT_MODE_AVAILABLE, MACB_CAPS_HIGH_SPEED, MACB_CAPS_PCS,
> and macb_is_gem()? Would there ever be a GEM without GIGABIT_MODE?
Yes. GEM is a new revision of the IP that is capable of doing Gigabit
mode or not. sama7g5_emac_config is typically one of those doing only
10/100.
> HIGH_SPEED without PCS? Why doesn't SGMII care if we're a gem (I think
> this one is a bug, because it cares later on)?
MACB_CAPS_HIGH_SPEED and MACB_CAPS_PCS were added by
e4e143e26ce8f5f57c60a994bdc63d0ddce3a823 ("net: macb: add support for
high speed interface"). In this commit it is said that "This controller
has separate MAC's and PCS'es for low and high speed paths." Maybe it's
a hint.
Best regards,
Nicolas
--
Nicolas Ferre
next prev parent reply other threads:[~2021-10-07 13:22 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-04 19:15 [RFC net-next PATCH 00/16] Add support for Xilinx PCS Sean Anderson
2021-10-04 19:15 ` [RFC net-next PATCH 01/16] dt-bindings: net: Add pcs property Sean Anderson
2021-10-05 9:39 ` Russell King (Oracle)
2021-10-05 16:18 ` Sean Anderson
2021-10-12 13:16 ` Rob Herring
2021-10-12 16:18 ` Sean Anderson
2021-10-12 16:44 ` Rob Herring
2021-10-12 17:01 ` Sean Anderson
2021-10-04 19:15 ` [RFC net-next PATCH 02/16] dt-bindings: net: Add binding for Xilinx PCS Sean Anderson
2021-10-05 12:26 ` Rob Herring
2021-10-04 19:15 ` [RFC net-next PATCH 03/16] net: sfp: Fix typo in state machine debug string Sean Anderson
2021-10-04 21:31 ` Andrew Lunn
2021-10-04 19:15 ` [RFC net-next PATCH 04/16] net: phylink: Move phylink_set_pcs before phylink_create Sean Anderson
2021-10-05 9:43 ` Russell King (Oracle)
2021-10-04 19:15 ` [RFC net-next PATCH 05/16] net: phylink: Automatically attach PCS devices Sean Anderson
2021-10-05 9:48 ` Russell King (Oracle)
2021-10-05 16:42 ` Sean Anderson
2021-10-07 10:23 ` Russell King (Oracle)
2021-10-08 0:14 ` Sean Anderson
2021-10-04 19:15 ` [RFC net-next PATCH 06/16] net: phylink: Add function for optionally adding a PCS Sean Anderson
2021-10-05 9:51 ` Russell King (Oracle)
2021-10-05 13:43 ` Andrew Lunn
2021-10-05 16:17 ` Sean Anderson
2021-10-04 19:15 ` [RFC net-next PATCH 07/16] net: phylink: Add helpers for c22 registers without MDIO Sean Anderson
2021-10-05 5:50 ` kernel test robot
2021-10-05 5:50 ` kernel test robot
2021-10-22 12:33 ` Russell King (Oracle)
2021-10-04 19:15 ` [RFC net-next PATCH 08/16] net: macb: Clean up macb_validate Sean Anderson
2021-10-04 23:04 ` Russell King (Oracle)
2021-10-04 23:09 ` Sean Anderson
2021-10-07 13:22 ` Nicolas Ferre [this message]
2021-10-08 0:20 ` Sean Anderson
2021-10-08 8:12 ` Nicolas Ferre
2021-10-04 19:15 ` [RFC net-next PATCH 09/16] net: macb: Move most of mac_prepare to mac_config Sean Anderson
2021-10-04 23:05 ` Russell King (Oracle)
2021-10-04 23:09 ` Sean Anderson
2021-10-04 19:15 ` [RFC net-next PATCH 10/16] net: macb: Move PCS settings to PCS callbacks Sean Anderson
2021-10-05 10:06 ` Russell King (Oracle)
2021-10-05 16:03 ` Sean Anderson
2021-10-05 18:53 ` Russell King (Oracle)
2021-10-05 21:44 ` Sean Anderson
2021-10-05 22:19 ` Russell King (Oracle)
2021-10-07 10:34 ` Russell King (Oracle)
2021-10-07 11:29 ` Russell King (Oracle)
2021-10-07 16:23 ` Russell King (Oracle)
2021-10-07 17:04 ` Sean Anderson
2021-10-04 19:15 ` [RFC net-next PATCH 11/16] net: macb: Support restarting PCS autonegotiation Sean Anderson
2021-10-04 19:15 ` [RFC net-next PATCH 12/16] net: macb: Support external PCSs Sean Anderson
2021-10-04 19:15 ` [RFC net-next PATCH 13/16] net: phy: Export get_phy_c22_id Sean Anderson
2021-10-05 10:12 ` Russell King (Oracle)
2021-10-04 19:15 ` [RFC net-next PATCH 14/16] net: mdio: Add helper functions for accessing MDIO devices Sean Anderson
2021-10-04 19:15 ` [RFC net-next PATCH 15/16] net: pcs: Add Xilinx PCS driver Sean Anderson
2021-10-05 6:10 ` kernel test robot
2021-10-04 19:15 ` [RFC net-next PATCH 16/16] net: sfp: Add quirk to ignore PHYs Sean Anderson
2021-10-04 22:01 ` Andrew Lunn
2021-10-05 10:33 ` Russell King (Oracle)
2021-10-05 16:45 ` Sean Anderson
2021-10-05 18:10 ` Sean Anderson
2021-10-05 19:12 ` Russell King (Oracle)
2021-10-05 20:38 ` Sean Anderson
2021-10-05 22:17 ` Russell King (Oracle)
2021-10-05 23:16 ` Sean Anderson
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