diff options
| author | Ong Boon Leong <boon.leong.ong@intel.com> | 2020-09-15 09:28:38 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-15 15:39:31 -0700 |
| commit | 0366f7e06a6bee7eace3946a6b67fb88b828bc5c (patch) | |
| tree | 69b984351c2476a7c54ad60cd2223134a0a98aa7 /drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c | |
| parent | 945c5704887e35bb4aee841c17aca9dd277c5e55 (diff) | |
net: stmmac: add ethtool support for get/set channels
Restructure NAPI add and delete process so that we can call them
accordingly in open() and ethtool_set_channels() accordingly.
Introduced stmmac_reinit_queues() to handle the transition needed
for changing Rx & Tx channels accordingly.
Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c index ac5e8cc5fb9f..db681287c273 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c @@ -840,6 +840,30 @@ static int stmmac_set_rxfh(struct net_device *dev, const u32 *indir, priv->plat->rx_queues_to_use); } +static void stmmac_get_channels(struct net_device *dev, + struct ethtool_channels *chan) +{ + struct stmmac_priv *priv = netdev_priv(dev); + + chan->rx_count = priv->plat->rx_queues_to_use; + chan->tx_count = priv->plat->tx_queues_to_use; + chan->max_rx = priv->dma_cap.number_rx_queues; + chan->max_tx = priv->dma_cap.number_tx_queues; +} + +static int stmmac_set_channels(struct net_device *dev, + struct ethtool_channels *chan) +{ + struct stmmac_priv *priv = netdev_priv(dev); + + if (chan->rx_count > priv->dma_cap.number_rx_queues || + chan->tx_count > priv->dma_cap.number_tx_queues || + !chan->rx_count || !chan->tx_count) + return -EINVAL; + + return stmmac_reinit_queues(dev, chan->rx_count, chan->tx_count); +} + static int stmmac_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info) { @@ -941,6 +965,8 @@ static const struct ethtool_ops stmmac_ethtool_ops = { .get_ts_info = stmmac_get_ts_info, .get_coalesce = stmmac_get_coalesce, .set_coalesce = stmmac_set_coalesce, + .get_channels = stmmac_get_channels, + .set_channels = stmmac_set_channels, .get_tunable = stmmac_get_tunable, .set_tunable = stmmac_set_tunable, .get_link_ksettings = stmmac_ethtool_get_link_ksettings, |