diff options
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c index db681287c273..5cfc942dbabf 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c @@ -440,6 +440,33 @@ static int stmmac_nway_reset(struct net_device *dev) return phylink_ethtool_nway_reset(priv->phylink); } +static void stmmac_get_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring) +{ + struct stmmac_priv *priv = netdev_priv(netdev); + + ring->rx_max_pending = DMA_MAX_RX_SIZE; + ring->tx_max_pending = DMA_MAX_TX_SIZE; + ring->rx_pending = priv->dma_rx_size; + ring->tx_pending = priv->dma_tx_size; +} + +static int stmmac_set_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring) +{ + if (ring->rx_mini_pending || ring->rx_jumbo_pending || + ring->rx_pending < DMA_MIN_RX_SIZE || + ring->rx_pending > DMA_MAX_RX_SIZE || + !is_power_of_2(ring->rx_pending) || + ring->tx_pending < DMA_MIN_TX_SIZE || + ring->tx_pending > DMA_MAX_TX_SIZE || + !is_power_of_2(ring->tx_pending)) + return -EINVAL; + + return stmmac_reinit_ringparam(netdev, ring->rx_pending, + ring->tx_pending); +} + static void stmmac_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause) @@ -947,6 +974,8 @@ static const struct ethtool_ops stmmac_ethtool_ops = { .get_regs_len = stmmac_ethtool_get_regs_len, .get_link = ethtool_op_get_link, .nway_reset = stmmac_nway_reset, + .get_ringparam = stmmac_get_ringparam, + .set_ringparam = stmmac_set_ringparam, .get_pauseparam = stmmac_get_pauseparam, .set_pauseparam = stmmac_set_pauseparam, .self_test = stmmac_selftest_run, |