| Message ID | E1t3DSm-000VxR-MN@rmk-PC.armlinux.org.uk (mailing list archive) |
|---|---|
| State | New |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | net: phylink: simplify SFP PHY attachment | expand |
On Tue, 22 Oct 2024 12:54:12 +0100 "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk> wrote: > Validate that the returned interface from sfp_select_interface() is > supportable by the MAC/PCS. If it isn't, print an error and return > the NA interface type. This is a preparatory step to reorganising > how a PHY on a SFP module is handled. > > Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Tested-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Thanks, Maxime
diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c index 62d347d1112c..4049d85cb477 100644 --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -2421,11 +2421,22 @@ static phy_interface_t phylink_sfp_select_interface(struct phylink *pl, phy_interface_t interface; interface = sfp_select_interface(pl->sfp_bus, link_modes); - if (interface == PHY_INTERFACE_MODE_NA) + if (interface == PHY_INTERFACE_MODE_NA) { phylink_err(pl, "selection of interface failed, advertisement %*pb\n", __ETHTOOL_LINK_MODE_MASK_NBITS, link_modes); + return interface; + } + + if (!test_bit(interface, pl->config->supported_interfaces)) { + phylink_err(pl, + "selection of interface failed, SFP selected %s (%u) but MAC supports %*pbl\n", + phy_modes(interface), interface, + (int)PHY_INTERFACE_MODE_MAX, + pl->config->supported_interfaces); + return PHY_INTERFACE_MODE_NA; + } return interface; }
Validate that the returned interface from sfp_select_interface() is supportable by the MAC/PCS. If it isn't, print an error and return the NA interface type. This is a preparatory step to reorganising how a PHY on a SFP module is handled. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> --- drivers/net/phy/phylink.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-)