From: Jakub Kicinski <kuba@kernel.org>
Date: Wed, 11 Mar 2020 15:33:00 -0700
Subject: net: igc: let core reject the unsupported coalescing parameters
Patch-mainline: v5.7-rc1
Git-commit: dbfa497a26e146b9b9401b3c4e8e2ed69ebdd4ad
References: jsc#SLE-13533
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.
This driver was rejecting almost all unsupported
parameters already, it was only missing a check
for tx_max_coalesced_frames_irq.
As a side effect of these changes the error code for
unsupported params changes from ENOTSUPP to EOPNOTSUPP.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/intel/igc/igc_ethtool.c | 22 +---------------------
1 file changed, 1 insertion(+), 21 deletions(-)
--- a/drivers/net/ethernet/intel/igc/igc_ethtool.c
+++ b/drivers/net/ethernet/intel/igc/igc_ethtool.c
@@ -861,27 +861,6 @@ static int igc_set_coalesce(struct net_d
struct igc_adapter *adapter = netdev_priv(netdev);
int i;
- if (ec->rx_max_coalesced_frames ||
- ec->rx_coalesce_usecs_irq ||
- ec->rx_max_coalesced_frames_irq ||
- ec->tx_max_coalesced_frames ||
- ec->tx_coalesce_usecs_irq ||
- ec->stats_block_coalesce_usecs ||
- 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_low ||
- ec->tx_max_coalesced_frames_low ||
- ec->pkt_rate_high ||
- ec->rx_coalesce_usecs_high ||
- ec->rx_max_coalesced_frames_high ||
- ec->tx_coalesce_usecs_high ||
- ec->tx_max_coalesced_frames_high ||
- ec->rate_sample_interval)
- return -ENOTSUPP;
-
if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS ||
(ec->rx_coalesce_usecs > 3 &&
ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
@@ -1915,6 +1894,7 @@ static int igc_set_link_ksettings(struct
}
static const struct ethtool_ops igc_ethtool_ops = {
+ .supported_coalesce_params = ETHTOOL_COALESCE_USECS,
.get_drvinfo = igc_get_drvinfo,
.get_regs_len = igc_get_regs_len,
.get_regs = igc_get_regs,