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Commit c3dc48f7 authored by Sudarsana Reddy Kalluru's avatar Sudarsana Reddy Kalluru Committed by David S. Miller
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qede: Add ethtool support for Energy efficient ethernet. 



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

Signed-off-by: default avatarSudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: default avatarYuval Mintz <yuval.mintz@cavium.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 645874e5

drivers/net/ethernet/qlogic/qede/qede_ethtool.c

+84 −0
Original line number Original line Diff line number Diff line
@@ -1631,6 +1631,87 @@ static int qede_get_tunable(struct net_device *dev, 
	return 0;

	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 = {

static const struct ethtool_ops qede_ethtool_ops = {

	.get_link_ksettings = qede_get_link_ksettings,

	.get_link_ksettings = qede_get_link_ksettings,

	.set_link_ksettings = qede_set_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,

	.get_channels = qede_get_channels,

	.set_channels = qede_set_channels,

	.set_channels = qede_set_channels,

	.self_test = qede_self_test,

	.self_test = qede_self_test,

	.get_eee = qede_get_eee,

	.set_eee = qede_set_eee,



	.get_tunable = qede_get_tunable,

	.get_tunable = qede_get_tunable,

	.set_tunable = qede_set_tunable,

	.set_tunable = qede_set_tunable,

};

};