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ethernet: stmmac: stmmac_ethtool: Don't support half duplex mode for multi queue

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Half-Duplex can only work with single queue, return error for multi
queue half duplex mode setting.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Change-Id: I1ea4d9f2b9745890e4e0cee6dc2ca8afe82b2d96
This commit is contained in:
David Wu
2022-08-26 16:54:55 +08:00
committed by Tao Huang
parent 64adcb65fd
commit 2a527678f9
1 changed files with 5 additions and 0 deletions
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5
drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
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@@ -392,6 +392,11 @@ stmmac_ethtool_set_link_ksettings(struct net_device *dev,
return 0;
}
if (priv->plat->tx_queues_to_use > 1 && cmd->base.duplex == DUPLEX_HALF) {
netdev_warn(priv->dev, "Half-Duplex can only work with single queue\n");
return -EINVAL;
}
return phylink_ethtool_ksettings_set(priv->phylink, cmd);
}