netdev - [PATCH net-next 02/15] net: dpaa: reject unsupported coalescing params

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Date:   Wed, 11 Mar 2020 15:32:49 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, mkubecek@...e.cz,
        sathya.perla@...adcom.com, ajit.khaparde@...adcom.com,
        sriharsha.basavapatna@...adcom.com, somnath.kotur@...adcom.com,
        madalin.bucur@....com, fugang.duan@....com, claudiu.manoil@....com,
        yisen.zhuang@...wei.com, salil.mehta@...wei.com,
        jeffrey.t.kirsher@...el.com, jacob.e.keller@...el.com,
        alexander.h.duyck@...ux.intel.com, Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net-next 02/15] net: dpaa: reject unsupported coalescing params

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

This driver did not previously reject unsupported parameters
(other than adaptive rx, which will now be rejected by core).

Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
 drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c b/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c
index 6aa1fa22cd04..9db2a02fb531 100644
--- a/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c
+++ b/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c
@@ -525,7 +525,6 @@ static int dpaa_get_coalesce(struct net_device *dev,
 
 	c->rx_coalesce_usecs = period;
 	c->rx_max_coalesced_frames = thresh;
-	c->use_adaptive_rx_coalesce = false;
 
 	return 0;
 }
@@ -540,9 +539,6 @@ static int dpaa_set_coalesce(struct net_device *dev,
 	u8 thresh, prev_thresh;
 	int cpu, res;
 
-	if (c->use_adaptive_rx_coalesce)
-		return -EINVAL;
-
 	period = c->rx_coalesce_usecs;
 	thresh = c->rx_max_coalesced_frames;
 
@@ -582,6 +578,8 @@ static int dpaa_set_coalesce(struct net_device *dev,
 }
 
 const struct ethtool_ops dpaa_ethtool_ops = {
+	.supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS |
+				     ETHTOOL_COALESCE_RX_MAX_FRAMES,
 	.get_drvinfo = dpaa_get_drvinfo,
 	.get_msglevel = dpaa_get_msglevel,
 	.set_msglevel = dpaa_set_msglevel,
-- 
2.24.1