netdev - [PATCH net-next v2 07/12] hisilicon: let core reject the unsupported coalescing parameters

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Message-Id: <20200304043354.716290-8-kuba@kernel.org>
Date:   Tue,  3 Mar 2020 20:33:49 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     davem@...emloft.net
Cc:     mkubecek@...e.cz, thomas.lendacky@....com, benve@...co.com,
        _govind@....com, pkaustub@...co.com, peppe.cavallaro@...com,
        alexandre.torgue@...com, joabreu@...opsys.com, snelson@...sando.io,
        yisen.zhuang@...wei.com, salil.mehta@...wei.com,
        jeffrey.t.kirsher@...el.com, jacob.e.keller@...el.com,
        alexander.h.duyck@...ux.intel.com, michael.chan@...adcom.com,
        saeedm@...lanox.com, leon@...nel.org, netdev@...r.kernel.org,
        Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net-next v2 07/12] hisilicon: let core reject the unsupported coalescing parameters

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

This driver correctly rejects all unsupported parameters.
As a side effect of these changes the error code for
unsupported params changes from EOPNOTSUPP to EINVAL.

Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
 drivers/net/ethernet/hisilicon/hip04_eth.c | 16 ++--------------
 1 file changed, 2 insertions(+), 14 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hip04_eth.c b/drivers/net/ethernet/hisilicon/hip04_eth.c
index d9718b87279d..74d1a5778c3e 100644
--- a/drivers/net/ethernet/hisilicon/hip04_eth.c
+++ b/drivers/net/ethernet/hisilicon/hip04_eth.c
@@ -811,20 +811,6 @@ static int hip04_set_coalesce(struct net_device *netdev,
 {
 	struct hip04_priv *priv = netdev_priv(netdev);
 
-	/* Check not supported parameters  */
-	if ((ec->rx_max_coalesced_frames) || (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->rx_coalesce_usecs) ||
-	    (ec->tx_max_coalesced_frames_irq) ||
-	    (ec->stats_block_coalesce_usecs) ||
-	    (ec->tx_max_coalesced_frames_high) || (ec->rate_sample_interval))
-		return -EOPNOTSUPP;
-
 	if ((ec->tx_coalesce_usecs > HIP04_MAX_TX_COALESCE_USECS ||
 	     ec->tx_coalesce_usecs < HIP04_MIN_TX_COALESCE_USECS) ||
 	    (ec->tx_max_coalesced_frames > HIP04_MAX_TX_COALESCE_FRAMES ||
@@ -845,6 +831,8 @@ static void hip04_get_drvinfo(struct net_device *netdev,
 }
 
 static const struct ethtool_ops hip04_ethtool_ops = {
+	.coalesce_types		= ETHTOOL_COALESCE_TX_USECS |
+				  ETHTOOL_COALESCE_TX_MAX_FRAMES,
 	.get_coalesce		= hip04_get_coalesce,
 	.set_coalesce		= hip04_set_coalesce,
 	.get_drvinfo		= hip04_get_drvinfo,
-- 
2.24.1