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Message-ID: <9d77af3f-997a-45cf-873d-79b912a15f72@seco.com>
Date: Thu, 30 May 2024 10:57:43 -0400
From: Sean Anderson <sean.anderson@...o.com>
To: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
Andrew Lunn <andrew@...n.ch>, Heiner Kallweit <hkallweit1@...il.com>
Cc: Andrew Halaney <ahalaney@...hat.com>,
Serge Semin <fancer.lancer@...il.com>, Madalin Bucur
<madalin.bucur@....com>, "David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org
Subject: Re: [PATCH net-next 4/6] net: fman_memac: remove the now unnecessary
checking for fixed-link
On 5/29/24 09:29, Russell King (Oracle) wrote:
> Since default_an_inband can be overriden by a fixed-link specification,
> there is no need for memac to be checking for this before setting
> default_an_inband. Remove this code and update the comment.
>
> Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
> ---
> drivers/net/ethernet/freescale/fman/fman_memac.c | 14 +++++---------
> 1 file changed, 5 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/net/ethernet/freescale/fman/fman_memac.c b/drivers/net/ethernet/freescale/fman/fman_memac.c
> index 9c44a3581950..796e6f4e583d 100644
> --- a/drivers/net/ethernet/freescale/fman/fman_memac.c
> +++ b/drivers/net/ethernet/freescale/fman/fman_memac.c
> @@ -1066,7 +1066,6 @@ int memac_initialization(struct mac_device *mac_dev,
> struct fman_mac_params *params)
> {
> int err;
> - struct device_node *fixed;
> struct phylink_pcs *pcs;
> struct fman_mac *memac;
> unsigned long capabilities;
> @@ -1222,18 +1221,15 @@ int memac_initialization(struct mac_device *mac_dev,
> memac->rgmii_no_half_duplex = true;
>
> /* Most boards should use MLO_AN_INBAND, but existing boards don't have
> - * a managed property. Default to MLO_AN_INBAND if nothing else is
> - * specified. We need to be careful and not enable this if we have a
> - * fixed link or if we are using MII or RGMII, since those
> - * configurations modes don't use in-band autonegotiation.
> + * a managed property. Default to MLO_AN_INBAND rather than MLO_AN_PHY.
> + * Phylink will allow this to be overriden by a fixed link. We need to
> + * be careful and not enable this if we are using MII or RGMII, since
> + * those configurations modes don't use in-band autonegotiation.
> */
> - fixed = of_get_child_by_name(mac_node, "fixed-link");
> - if (!fixed && !of_property_read_bool(mac_node, "fixed-link") &&
> - !of_property_read_bool(mac_node, "managed") &&
> + if (!of_property_read_bool(mac_node, "managed") &&
> mac_dev->phy_if != PHY_INTERFACE_MODE_MII &&
> !phy_interface_mode_is_rgmii(mac_dev->phy_if))
> mac_dev->phylink_config.default_an_inband = true;
> - of_node_put(fixed);
>
> err = memac_init(mac_dev->fman_mac);
> if (err < 0)
Reviewed-by: Sean Anderson <sean.anderson@...o.com>
[Clea Astarte Google Cloud, SECO SpA]<https://clea.ai/astarte-on-google-cloud>
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