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Commit d552fa84 authored by Sudarsana Reddy Kalluru's avatar Sudarsana Reddy Kalluru Committed by David S. Miller
Browse files

qede: Add support for coalescing config read/update. 



Signed-off-by: default avatarSudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: default avatarYuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 722003ac

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

+53 −0
Original line number Diff line number Diff line
@@ -426,6 +426,57 @@ static u32 qede_get_link(struct net_device *dev) 
	return current_link.link_up;

}



static int qede_get_coalesce(struct net_device *dev,

			     struct ethtool_coalesce *coal)

{

	struct qede_dev *edev = netdev_priv(dev);



	memset(coal, 0, sizeof(struct ethtool_coalesce));

	edev->ops->common->get_coalesce(edev->cdev,

					(u16 *)&coal->rx_coalesce_usecs,

					(u16 *)&coal->tx_coalesce_usecs);



	return 0;

}



static int qede_set_coalesce(struct net_device *dev,

			     struct ethtool_coalesce *coal)

{

	struct qede_dev *edev = netdev_priv(dev);

	int i, rc = 0;

	u16 rxc, txc;

	u8 sb_id;



	if (!netif_running(dev)) {

		DP_INFO(edev, "Interface is down\n");

		return -EINVAL;

	}



	if (coal->rx_coalesce_usecs > QED_COALESCE_MAX ||

	    coal->tx_coalesce_usecs > QED_COALESCE_MAX) {

		DP_INFO(edev,

			"Can't support requested %s coalesce value [max supported value %d]\n",

			coal->rx_coalesce_usecs > QED_COALESCE_MAX ? "rx"

								   : "tx",

			QED_COALESCE_MAX);

		return -EINVAL;

	}



	rxc = (u16)coal->rx_coalesce_usecs;

	txc = (u16)coal->tx_coalesce_usecs;

	for_each_rss(i) {

		sb_id = edev->fp_array[i].sb_info->igu_sb_id;

		rc = edev->ops->common->set_coalesce(edev->cdev, rxc, txc,

						     (u8)i, sb_id);

		if (rc) {

			DP_INFO(edev, "Set coalesce error, rc = %d\n", rc);

			return rc;

		}

	}



	return rc;

}



static void qede_get_ringparam(struct net_device *dev,

			       struct ethtool_ringparam *ering)

{
@@ -1139,6 +1190,8 @@ static const struct ethtool_ops qede_ethtool_ops = { 
	.set_msglevel = qede_set_msglevel,

	.nway_reset = qede_nway_reset,

	.get_link = qede_get_link,

	.get_coalesce = qede_get_coalesce,

	.set_coalesce = qede_set_coalesce,

	.get_ringparam = qede_get_ringparam,

	.set_ringparam = qede_set_ringparam,

	.get_pauseparam = qede_get_pauseparam,