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net: enetc: fix the output issue of 'ethtool --show-ring'

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Currently, enetc_get_ringparam() only provides rx_pending and tx_pending,
but 'ethtool --show-ring' no longer displays these fields. Because the
ringparam retrieval path has moved to the new netlink interface, where
rings_fill_reply() emits the *x_pending only if the *x_max_pending values
are non-zero. So rx_max_pending and tx_max_pending to are added to
enetc_get_ringparam() to fix the issue.

Note that the maximum tx/rx ring size of hardware is 64K, but we haven't
added set_ringparam() to make the ring size configurable. To avoid users
mistakenly believing that the ring size can be increased, so set
the *x_max_pending to priv->*x_bd_count.

Fixes: e4a1717b67 ("ethtool: provide ring sizes with RINGS_GET request")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20260320094222.706339-1-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Wei Fang 2026-03-20 17:42:22 +08:00 committed by Jakub Kicinski
parent e537dd15d0
commit 70b439bf06
1 changed files with 2 additions and 0 deletions
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2
drivers/net/ethernet/freescale/enetc/enetc_ethtool.c
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@ -813,6 +813,8 @@ static void enetc_get_ringparam(struct net_device *ndev,
{
struct enetc_ndev_priv *priv = netdev_priv(ndev);
ring->rx_max_pending = priv->rx_bd_count;
ring->tx_max_pending = priv->tx_bd_count;
ring->rx_pending = priv->rx_bd_count;
ring->tx_pending = priv->tx_bd_count;