qede: Add support for coalescing config read/update.
Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c
index 6836d44..6228482 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c
@@ -426,6 +426,57 @@
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 @@
.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,