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stmmac: let core reject the unsupported coalescing parameters

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Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.

This driver correctly rejects all unsupported parameters.
No functional changes.

v3: adjust commit message for new error code and member name

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2020-03-04 21:15:34 -08:00 committed by David S. Miller
parent c885bff6c2
commit d0ee0e620f
1 changed files with 2 additions and 14 deletions
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16
drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
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@ -732,20 +732,6 @@ static int stmmac_set_coalesce(struct net_device *dev,
u32 rx_cnt = priv->plat->rx_queues_to_use;
unsigned int rx_riwt;
/* Check not supported parameters */
if ((ec->rx_coalesce_usecs_irq) ||
(ec->rx_max_coalesced_frames_irq) || (ec->tx_coalesce_usecs_irq) ||
(ec->use_adaptive_rx_coalesce) || (ec->use_adaptive_tx_coalesce) ||
(ec->pkt_rate_low) || (ec->rx_coalesce_usecs_low) ||
(ec->rx_max_coalesced_frames_low) || (ec->tx_coalesce_usecs_high) ||
(ec->tx_max_coalesced_frames_low) || (ec->pkt_rate_high) ||
(ec->tx_coalesce_usecs_low) || (ec->rx_coalesce_usecs_high) ||
(ec->rx_max_coalesced_frames_high) ||
(ec->tx_max_coalesced_frames_irq) ||
(ec->stats_block_coalesce_usecs) ||
(ec->tx_max_coalesced_frames_high) || (ec->rate_sample_interval))
return -EOPNOTSUPP;
if (priv->use_riwt && (ec->rx_coalesce_usecs > 0)) {
rx_riwt = stmmac_usec2riwt(ec->rx_coalesce_usecs, priv);
@ -914,6 +900,8 @@ static int stmmac_set_tunable(struct net_device *dev,
}
static const struct ethtool_ops stmmac_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
ETHTOOL_COALESCE_MAX_FRAMES,
.begin = stmmac_check_if_running,
.get_drvinfo = stmmac_ethtool_getdrvinfo,
.get_msglevel = stmmac_ethtool_getmsglevel,