diff options
| -rw-r--r-- | drivers/net/ethernet/qualcomm/emac/emac-ethtool.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qualcomm/emac/emac-ethtool.c b/drivers/net/ethernet/qualcomm/emac/emac-ethtool.c index 758cd648d666..0d9945fb79be 100644 --- a/drivers/net/ethernet/qualcomm/emac/emac-ethtool.c +++ b/drivers/net/ethernet/qualcomm/emac/emac-ethtool.c @@ -145,6 +145,29 @@ static void emac_get_ringparam(struct net_device *netdev, ring->tx_pending = adpt->tx_desc_cnt; } +static int emac_set_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring) +{ + struct emac_adapter *adpt = netdev_priv(netdev); + + /* We don't have separate queues/rings for small/large frames, so + * reject any attempt to specify those values separately. + */ + if (ring->rx_mini_pending || ring->rx_jumbo_pending) + return -EINVAL; + + adpt->tx_desc_cnt = + clamp_val(ring->tx_pending, EMAC_MIN_TX_DESCS, EMAC_MAX_TX_DESCS); + + adpt->rx_desc_cnt = + clamp_val(ring->rx_pending, EMAC_MIN_RX_DESCS, EMAC_MAX_RX_DESCS); + + if (netif_running(netdev)) + return emac_reinit_locked(adpt); + + return 0; +} + static void emac_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause) { @@ -219,6 +242,7 @@ static const struct ethtool_ops emac_ethtool_ops = { .get_ethtool_stats = emac_get_ethtool_stats, .get_ringparam = emac_get_ringparam, + .set_ringparam = emac_set_ringparam, .get_pauseparam = emac_get_pauseparam, .set_pauseparam = emac_set_pauseparam, |