netdev - [PATCH net-next 10/15] net: netxen: let core reject the unsupported coalescing parameters

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Date:   Thu, 12 Mar 2020 21:07:58 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, kernel-team@...com,
        cooldavid@...ldavid.org, sebastian.hesselbarth@...il.com,
        thomas.petazzoni@...tlin.com, maxime.chevallier@...tlin.com,
        rmk+kernel@...linux.org.uk, mcroce@...hat.com,
        sgoutham@...vell.com, gakula@...vell.com, sbhatta@...vell.com,
        hkelam@...vell.com, mlindner@...vell.com,
        stephen@...workplumber.org, christopher.lee@...i.com,
        manishc@...vell.com, rahulv@...vell.com,
        GR-Linux-NIC-Dev@...vell.com, aelior@...vell.com,
        GR-everest-linux-l2@...vell.com, shshaikh@...vell.com,
        nic_swsd@...ltek.com, hkallweit1@...il.com, bh74.an@...sung.com,
        romieu@...zoreil.com
Subject: [PATCH net-next 10/15] net: netxen: let core reject the unsupported coalescing parameters

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

As a side effect of these changes the error code for
unsupported params changes from EINVAL to EOPNOTSUPP.

The driver was missing a check for rate_sample_interval.

Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
 .../qlogic/netxen/netxen_nic_ethtool.c        | 21 +++----------------
 1 file changed, 3 insertions(+), 18 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_ethtool.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_ethtool.c
index 6a2d91d58968..66f45fce90fa 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_ethtool.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_ethtool.c
@@ -748,24 +748,7 @@ static int netxen_set_intr_coalesce(struct net_device *netdev,
 	if (ethcoal->rx_coalesce_usecs > 0xffff ||
 		ethcoal->rx_max_coalesced_frames > 0xffff ||
 		ethcoal->tx_coalesce_usecs > 0xffff ||
-		ethcoal->tx_max_coalesced_frames > 0xffff ||
-		ethcoal->rx_coalesce_usecs_irq ||
-		ethcoal->rx_max_coalesced_frames_irq ||
-		ethcoal->tx_coalesce_usecs_irq ||
-		ethcoal->tx_max_coalesced_frames_irq ||
-		ethcoal->stats_block_coalesce_usecs ||
-		ethcoal->use_adaptive_rx_coalesce ||
-		ethcoal->use_adaptive_tx_coalesce ||
-		ethcoal->pkt_rate_low ||
-		ethcoal->rx_coalesce_usecs_low ||
-		ethcoal->rx_max_coalesced_frames_low ||
-		ethcoal->tx_coalesce_usecs_low ||
-		ethcoal->tx_max_coalesced_frames_low ||
-		ethcoal->pkt_rate_high ||
-		ethcoal->rx_coalesce_usecs_high ||
-		ethcoal->rx_max_coalesced_frames_high ||
-		ethcoal->tx_coalesce_usecs_high ||
-		ethcoal->tx_max_coalesced_frames_high)
+		ethcoal->tx_max_coalesced_frames > 0xffff)
 		return -EINVAL;
 
 	if (!ethcoal->rx_coalesce_usecs ||
@@ -923,6 +906,8 @@ netxen_get_dump_data(struct net_device *netdev, struct ethtool_dump *dump,
 }
 
 const struct ethtool_ops netxen_nic_ethtool_ops = {
+	.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
+				     ETHTOOL_COALESCE_MAX_FRAMES,
 	.get_drvinfo = netxen_nic_get_drvinfo,
 	.get_regs_len = netxen_nic_get_regs_len,
 	.get_regs = netxen_nic_get_regs,
-- 
2.24.1