diff options
| author |   Igor Russkikh <irusskikh@marvell.com> | 2020-10-05 18:39:38 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-10-06 06:16:01 -0700 |
| commit | e193c3ab8302908b1378fc0606be561e976d2532 (patch) | |
| tree | e09f7b39510d0f3808cb2e32a62306303e4a782a /drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c | |
| parent | ethtool: allow netdev driver to define phy tunables (diff) | |
| download | linux-dev-e193c3ab8302908b1378fc0606be561e976d2532.tar.xz linux-dev-e193c3ab8302908b1378fc0606be561e976d2532.zip | |
net: atlantic: implement phy downshift feature
PHY downshift allows phy to try renegotiate if link is unstable
and can carry higher speed.
AQC devices has integrated PHY which is controlled by MAC firmware.
Thus, driver defines new ethtool callbacks to implement phy tunables
via netdev.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c b/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c index 1ab5314c4c1b..3f87cc6e2538 100644 --- a/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c +++ b/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c @@ -917,6 +917,45 @@ static int aq_ethtool_set_priv_flags(struct net_device *ndev, u32 flags) return ret; } +static int aq_ethtool_get_phy_tunable(struct net_device *ndev, + const struct ethtool_tunable *tuna, void *data) +{ + struct aq_nic_s *aq_nic = netdev_priv(ndev); + + switch (tuna->id) { + case ETHTOOL_PHY_DOWNSHIFT: { + u8 *val = data; + + *val = (u8)aq_nic->aq_nic_cfg.downshift_counter; + break; + } + default: + return -EOPNOTSUPP; + } + + return 0; +} + +static int aq_ethtool_set_phy_tunable(struct net_device *ndev, + const struct ethtool_tunable *tuna, const void *data) +{ + int err = -EOPNOTSUPP; + struct aq_nic_s *aq_nic = netdev_priv(ndev); + + switch (tuna->id) { + case ETHTOOL_PHY_DOWNSHIFT: { + const u8 *val = data; + + err = aq_nic_set_downshift(aq_nic, *val); + break; + } + default: + break; + } + + return err; +} + const struct ethtool_ops aq_ethtool_ops = { .supported_coalesce_params = ETHTOOL_COALESCE_USECS | ETHTOOL_COALESCE_MAX_FRAMES, @@ -952,4 +991,6 @@ const struct ethtool_ops aq_ethtool_ops = { .get_coalesce = aq_ethtool_get_coalesce, .set_coalesce = aq_ethtool_set_coalesce, .get_ts_info = aq_ethtool_get_ts_info, + .get_phy_tunable = aq_ethtool_get_phy_tunable, + .set_phy_tunable = aq_ethtool_set_phy_tunable, }; |