@@ -820,7 +820,56 @@ static int dpaa2_eth_set_tunable(struct net_device *net_dev,
return err;
}
+static int dpaa2_eth_get_coalesce(struct net_device *dev,
+ struct ethtool_coalesce *ic,
+ struct kernel_ethtool_coalesce *kernel_coal,
+ struct netlink_ext_ack *extack)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(dev);
+ struct dpaa2_io *dpio = priv->channel[0]->dpio;
+
+ dpaa2_io_get_irq_coalescing(dpio, &ic->rx_coalesce_usecs);
+
+ return 0;
+}
+
+static int dpaa2_eth_set_coalesce(struct net_device *dev,
+ struct ethtool_coalesce *ic,
+ struct kernel_ethtool_coalesce *kernel_coal,
+ struct netlink_ext_ack *extack)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(dev);
+ struct dpaa2_io *dpio;
+ u32 prev_rx_usecs;
+ int i, j, err;
+
+ /* Keep track of the previous value, just in case we fail */
+ dpio = priv->channel[0]->dpio;
+ dpaa2_io_get_irq_coalescing(dpio, &prev_rx_usecs);
+
+ /* Setup new value for rx coalescing */
+ for (i = 0; i < priv->num_channels; i++) {
+ dpio = priv->channel[i]->dpio;
+
+ err = dpaa2_io_set_irq_coalescing(dpio, ic->rx_coalesce_usecs);
+ if (err)
+ goto restore_rx_usecs;
+ }
+
+ return 0;
+
+restore_rx_usecs:
+ for (j = 0; j < i; j++) {
+ dpio = priv->channel[j]->dpio;
+
+ dpaa2_io_set_irq_coalescing(dpio, prev_rx_usecs);
+ }
+
+ return err;
+}
+
const struct ethtool_ops dpaa2_ethtool_ops = {
+ .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS,
.get_drvinfo = dpaa2_eth_get_drvinfo,
.nway_reset = dpaa2_eth_nway_reset,
.get_link = ethtool_op_get_link,
@@ -836,4 +885,6 @@ const struct ethtool_ops dpaa2_ethtool_ops = {
.get_ts_info = dpaa2_eth_get_ts_info,
.get_tunable = dpaa2_eth_get_tunable,
.set_tunable = dpaa2_eth_set_tunable,
+ .get_coalesce = dpaa2_eth_get_coalesce,
+ .set_coalesce = dpaa2_eth_set_coalesce,
};
Use the newly exported dpio driver API to manually configure the IRQ coalescing parameters requested by the user. The .get_coalesce() and .set_coalesce() net_device callbacks are implemented and directly export or setup the rx-usecs on all the channels configured. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> --- .../ethernet/freescale/dpaa2/dpaa2-ethtool.c | 51 +++++++++++++++++++ 1 file changed, 51 insertions(+)