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net: phylink: allow attaching phy for SFP modules on 802.3z mode

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Some SFPs may contain an internal PHY which may in some cases want to
connect with the host interface in 1000base-x/2500base-x mode.
Do not fail if such PHY is being attached in one of these PHY interface
modes.

Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Pali Rohár <pali@kernel.org>
Cc: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Marek Behún 2022-09-30 16:21:06 +02:00 committed by David S. Miller
parent d6d2929264
commit 31eb8907aa
1 changed files with 1 additions and 4 deletions
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5
drivers/net/phy/phylink.c
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@ -1669,7 +1669,7 @@ static int phylink_attach_phy(struct phylink *pl, struct phy_device *phy,
{
if (WARN_ON(pl->cfg_link_an_mode == MLO_AN_FIXED ||
(pl->cfg_link_an_mode == MLO_AN_INBAND &&
phy_interface_mode_is_8023z(interface))))
phy_interface_mode_is_8023z(interface) && !pl->sfp_bus)))
return -EINVAL;
if (pl->phydev)
@ -2918,9 +2918,6 @@ static int phylink_sfp_config_phy(struct phylink *pl, u8 mode,
return ret;
}
if (phy_interface_mode_is_8023z(iface) && pl->phydev)
return -EINVAL;
pl->link_port = pl->sfp_port;
phylink_sfp_set_config(pl, mode, support, &config);