diff options
| author | jbrunet <jbrunet@baylibre.com> | 2016-11-28 09:46:46 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-07-05 12:40:19 (GMT) |
| commit | 97ace183074d306942b903a148aebd5d061758f0 (patch) | |
| tree | 4f26fb02ec75550f14c23f2ec0c2f468700c7e1a /drivers/net/phy/phy.c | |
| parent | 0e8eca987e27077fc2ade85aa402dbc177fdb026 (diff) | |
| download | linux-97ace183074d306942b903a148aebd5d061758f0.tar.xz | |
net: phy: add an option to disable EEE advertisement
[ Upstream commit d853d145ea3e63387a2ac759aa41d5e43876e561 ]
This patch adds an option to disable EEE advertisement in the generic PHY
by providing a mask of prohibited modes corresponding to the value found in
the MDIO_AN_EEE_ADV register.
On some platforms, PHY Low power idle seems to be causing issues, even
breaking the link some cases. The patch provides a convenient way for these
platforms to disable EEE advertisement and work around the issue.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Tested-by: Yegor Yefremov <yegorslists@googlemail.com>
Tested-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/phy/phy.c')
| -rw-r--r-- | drivers/net/phy/phy.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index a9be26f..edd30eb 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -1384,6 +1384,9 @@ int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data) { int val = ethtool_adv_to_mmd_eee_adv_t(data->advertised); + /* Mask prohibited EEE modes */ + val &= ~phydev->eee_broken_modes; + phy_write_mmd_indirect(phydev, MDIO_AN_EEE_ADV, MDIO_MMD_AN, val); return 0; |