diff mbox series

[net-next,v3,2/5] net: phylink: allow attaching phy for SFP modules on 802.3z mode

Message ID 20201116111511.5061-3-kabel@kernel.org (mailing list archive)
State Deferred
Delegated to: Netdev Maintainers
Headers show
Series Support for RollBall 10G copper SFP modules | expand

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netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/kdoc success Errors and warnings before: 0 this patch: 0
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netdev/checkpatch warning WARNING: From:/Signed-off-by: email name mismatch: 'From: "Marek Behún" <kabel@kernel.org>' != 'Signed-off-by: Marek Behún <kabel@kernel.org>'
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
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netdev/stable success Stable not CCed

Commit Message

Marek Behún Nov. 16, 2020, 11:15 a.m. UTC 
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>
Cc: Andrew Lunn <andrew@lunn.ch>
---
 drivers/net/phy/phylink.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 5d8c015bc9f2..705c49c37348 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1018,7 +1018,7 @@  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)
@@ -2069,9 +2069,6 @@  static int phylink_sfp_config(struct phylink *pl, u8 mode,
 		    phylink_an_mode_str(mode), phy_modes(config.interface),
 		    __ETHTOOL_LINK_MODE_MASK_NBITS, support);
 
-	if (phy_interface_mode_is_8023z(iface) && pl->phydev)
-		return -EINVAL;
-
 	changed = !linkmode_equal(pl->supported, support);
 	if (changed) {
 		linkmode_copy(pl->supported, support);