Messages in this thread Patch in this message | | | From | Vladimir Oltean <> | Subject | [RFC PATCH net-next 2/8] phy: introduce the PHY_MODE_ETHERNET_PHY mode for phy_set_mode_ext() | Date | Thu, 17 Aug 2023 18:06:38 +0300 |
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As opposed to PHY_MODE_ETHERNET which takes a phy_interface_t as is expected to be used by an Ethernet MAC driver, PHY_MODE_ETHERNET takes an enum ethtool_link_mode_bit_indices and expects to be used by an Ethernet PHY driver.
It is true that the phy_interface_t type also contains definitions for PHY_INTERFACE_MODE_10GKR and PHY_INTERFACE_MODE_1000BASEKX, but those were deemed to be mistakes, and shouldn't be used going forward, when 10GBase-KR and 1GBase-KX are really link modes. Thus, I believe that the distinction is necessary, rather than hacking more improper PHY modes.
In particular to the Lynx SerDes, it can be used (as the PMA/PMD layer) in conjunction with a separate backplane AN/LT block to form a full-fledged copper backplane Ethernet PHY. The configuration of the lanes is relatively similar to what is done for a typical MAC-to-PHY link, except that we allow tuning the electrical equalization parameters of the link (support for which will come as a separate change).
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> --- include/linux/phy/phy.h | 1 + 1 file changed, 1 insertion(+)
diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index 456d21c67e4f..7e10761303fc 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -39,6 +39,7 @@ enum phy_mode { PHY_MODE_UFS_HS_B, PHY_MODE_PCIE, PHY_MODE_ETHERNET, + PHY_MODE_ETHERNET_PHY, PHY_MODE_MIPI_DPHY, PHY_MODE_SATA, PHY_MODE_LVDS, -- 2.34.1
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