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qede: Add ethtool support for Energy efficient ethernet.

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The patch adds ethtool callback implementations for querying/configuring
the Energy Efficient Ethernet (EEE) parameters.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Yuval Mintz <yuval.mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sudarsana Reddy Kalluru 2017-07-26 06:07:12 -07:00 committed by David S. Miller
parent 645874e580
commit c3dc48f786
1 changed files with 84 additions and 0 deletions
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84
drivers/net/ethernet/qlogic/qede/qede_ethtool.c
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@ -1631,6 +1631,87 @@ static int qede_get_tunable(struct net_device *dev,
return 0;
}
static int qede_get_eee(struct net_device *dev, struct ethtool_eee *edata)
{
struct qede_dev *edev = netdev_priv(dev);
struct qed_link_output current_link;
memset(&current_link, 0, sizeof(current_link));
edev->ops->common->get_link(edev->cdev, &current_link);
if (!current_link.eee_supported) {
DP_INFO(edev, "EEE is not supported\n");
return -EOPNOTSUPP;
}
if (current_link.eee.adv_caps & QED_EEE_1G_ADV)
edata->advertised = ADVERTISED_1000baseT_Full;
if (current_link.eee.adv_caps & QED_EEE_10G_ADV)
edata->advertised |= ADVERTISED_10000baseT_Full;
if (current_link.sup_caps & QED_EEE_1G_ADV)
edata->supported = ADVERTISED_1000baseT_Full;
if (current_link.sup_caps & QED_EEE_10G_ADV)
edata->supported |= ADVERTISED_10000baseT_Full;
if (current_link.eee.lp_adv_caps & QED_EEE_1G_ADV)
edata->lp_advertised = ADVERTISED_1000baseT_Full;
if (current_link.eee.lp_adv_caps & QED_EEE_10G_ADV)
edata->lp_advertised |= ADVERTISED_10000baseT_Full;
edata->tx_lpi_timer = current_link.eee.tx_lpi_timer;
edata->eee_enabled = current_link.eee.enable;
edata->tx_lpi_enabled = current_link.eee.tx_lpi_enable;
edata->eee_active = current_link.eee_active;
return 0;
}
static int qede_set_eee(struct net_device *dev, struct ethtool_eee *edata)
{
struct qede_dev *edev = netdev_priv(dev);
struct qed_link_output current_link;
struct qed_link_params params;
if (!edev->ops->common->can_link_change(edev->cdev)) {
DP_INFO(edev, "Link settings are not allowed to be changed\n");
return -EOPNOTSUPP;
}
memset(&current_link, 0, sizeof(current_link));
edev->ops->common->get_link(edev->cdev, &current_link);
if (!current_link.eee_supported) {
DP_INFO(edev, "EEE is not supported\n");
return -EOPNOTSUPP;
}
memset(&params, 0, sizeof(params));
params.override_flags |= QED_LINK_OVERRIDE_EEE_CONFIG;
if (!(edata->advertised & (ADVERTISED_1000baseT_Full |
ADVERTISED_10000baseT_Full)) ||
((edata->advertised & (ADVERTISED_1000baseT_Full |
ADVERTISED_10000baseT_Full)) !=
edata->advertised)) {
DP_VERBOSE(edev, QED_MSG_DEBUG,
"Invalid advertised capabilities %d\n",
edata->advertised);
return -EINVAL;
}
if (edata->advertised & ADVERTISED_1000baseT_Full)
params.eee.adv_caps = QED_EEE_1G_ADV;
if (edata->advertised & ADVERTISED_10000baseT_Full)
params.eee.adv_caps |= QED_EEE_10G_ADV;
params.eee.enable = edata->eee_enabled;
params.eee.tx_lpi_enable = edata->tx_lpi_enabled;
params.eee.tx_lpi_timer = edata->tx_lpi_timer;
params.link_up = true;
edev->ops->common->set_link(edev->cdev, &params);
return 0;
}
static const struct ethtool_ops qede_ethtool_ops = {
.get_link_ksettings = qede_get_link_ksettings,
.set_link_ksettings = qede_set_link_ksettings,
@ -1664,6 +1745,9 @@ static const struct ethtool_ops qede_ethtool_ops = {
.get_channels = qede_get_channels,
.set_channels = qede_set_channels,
.self_test = qede_self_test,
.get_eee = qede_get_eee,
.set_eee = qede_set_eee,
.get_tunable = qede_get_tunable,
.set_tunable = qede_set_tunable,
};