[PATCH net-next v7 0/9] net: add EEE support for KSZ9477 and AR8035 with i.MX6

From: Oleksij Rempel
Date: Thu Feb 09 2023 - 04:51:40 EST


changes v7:
- update documentation for genphy_c45_eee_is_active()
- address review comments on "net: dsa: microchip: enable EEE support"
patch

changes v6:
- split patch set and send only first 9 patches
- Add Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
- use 0xffff instead of GENMASK
- Document @supported_eee
- use "()" with function name in comments

changes v5:
- spell fixes
- move part of genphy_c45_read_eee_abilities() to
genphy_c45_read_eee_cap1()
- validate MDIO_PCS_EEE_ABLE register against 0xffff val.
- rename *eee_100_10000* to *eee_cap1*
- use linkmode_intersects(phydev->supported, PHY_EEE_CAP1_FEATURES)
instead of !linkmode_empty()
- add documentation to linkmode/register helpers

changes v4:
- remove following helpers:
mmd_eee_cap_to_ethtool_sup_t
mmd_eee_adv_to_ethtool_adv_t
ethtool_adv_to_mmd_eee_adv_t
and port drivers from this helpers to linkmode helpers.
- rebase against latest net-next
- port phy_init_eee() to genphy_c45_eee_is_active()

changes v3:
- rework some parts of EEE infrastructure and move it to c45 code.
- add supported_eee storage and start using it in EEE code and by the
micrel driver.
- add EEE support for ar8035 PHY
- add SmartEEE support to FEC i.MX series.

changes v2:
- use phydev->supported instead of reading MII_BMSR regiaster
- fix @get_eee > @set_eee

With this patch series we provide EEE control for KSZ9477 family of switches and
AR8035 with i.MX6 configuration.
According to my tests, on a system with KSZ8563 switch and 100Mbit idle link,
we consume 0,192W less power per port if EEE is enabled.

Oleksij Rempel (9):
net: dsa: microchip: enable EEE support
net: phy: add genphy_c45_read_eee_abilities() function
net: phy: micrel: add ksz9477_get_features()
net: phy: export phy_check_valid() function
net: phy: add genphy_c45_ethtool_get/set_eee() support
net: phy: c22: migrate to genphy_c45_write_eee_adv()
net: phy: c45: migrate to genphy_c45_write_eee_adv()
net: phy: migrate phy_init_eee() to genphy_c45_eee_is_active()
net: phy: start using genphy_c45_ethtool_get/set_eee()

drivers/net/dsa/microchip/ksz_common.c | 66 +++++
drivers/net/phy/micrel.c | 21 ++
drivers/net/phy/phy-c45.c | 319 ++++++++++++++++++++++++-
drivers/net/phy/phy.c | 153 ++----------
drivers/net/phy/phy_device.c | 26 +-
include/linux/mdio.h | 84 +++++++
include/linux/phy.h | 14 ++
include/uapi/linux/mdio.h | 8 +
8 files changed, 554 insertions(+), 137 deletions(-)

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2.30.2