diff options
| author | Maxime Chevallier <maxime.chevallier@bootlin.com> | 2022-08-17 14:32:54 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-08-22 13:46:26 +0100 |
| commit | c04ade27cb7b952b6b9b9a0efa0a6129cc63f2ae (patch) | |
| tree | 3512fc04c0e38a04b6e3f4e808a6846563023e5e /include/linux/phy.h | |
| parent | 0932b12a7496fd3f9f4bd9c7de2c19a8ec9a01e9 (diff) | |
net: phy: Add helper to derive the number of ports from a phy mode
Some phy modes such as QSGMII multiplex several MAC<->PHY links on one
single physical interface. QSGMII used to be the only one supported, but
other modes such as QUSGMII also carry multiple links.
This helper allows getting the number of links that are multiplexed
on a given interface.
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/phy.h')
| -rw-r--r-- | include/linux/phy.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/phy.h b/include/linux/phy.h index 9eeab9b9a74c..7c49ab95441b 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -968,6 +968,8 @@ struct phy_fixup { const char *phy_speed_to_str(int speed); const char *phy_duplex_to_str(unsigned int duplex); +int phy_interface_num_ports(phy_interface_t interface); + /* A structure for mapping a particular speed and duplex * combination to a particular SUPPORTED and ADVERTISED value */ |