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Message-ID: <9bab54f2bf873605d200e6fdd0232dc7fd8d084f.1718862050.git.ecree.xilinx@gmail.com>
Date: Thu, 20 Jun 2024 06:47:08 +0100
From: <edward.cree@....com>
To: <linux-net-drivers@....com>, <davem@...emloft.net>, <kuba@...nel.org>,
	<edumazet@...gle.com>, <pabeni@...hat.com>
CC: Edward Cree <ecree.xilinx@...il.com>, <netdev@...r.kernel.org>,
	<habetsm.xilinx@...il.com>, <sudheer.mogilappagari@...el.com>,
	<jdamato@...tly.com>, <mw@...ihalf.com>, <linux@...linux.org.uk>,
	<sgoutham@...vell.com>, <gakula@...vell.com>, <sbhatta@...vell.com>,
	<hkelam@...vell.com>, <saeedm@...dia.com>, <leon@...nel.org>,
	<jacob.e.keller@...el.com>, <andrew@...n.ch>, <ahmed.zaki@...el.com>
Subject: [PATCH v6 net-next 5/9] net: ethtool: add an extack parameter to new rxfh_context APIs

From: Edward Cree <ecree.xilinx@...il.com>

Currently passed as NULL, but will allow drivers to report back errors
 when ethnl support for these ops is added.

Signed-off-by: Edward Cree <ecree.xilinx@...il.com>
---
 include/linux/ethtool.h | 9 ++++++---
 net/core/dev.c          | 2 +-
 net/ethtool/ioctl.c     | 9 ++++++---
 3 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index d9570b97154b..f8688e77ca62 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -1001,13 +1001,16 @@ struct ethtool_ops {
 			    struct netlink_ext_ack *extack);
 	int	(*create_rxfh_context)(struct net_device *,
 				       struct ethtool_rxfh_context *ctx,
-				       const struct ethtool_rxfh_param *rxfh);
+				       const struct ethtool_rxfh_param *rxfh,
+				       struct netlink_ext_ack *extack);
 	int	(*modify_rxfh_context)(struct net_device *,
 				       struct ethtool_rxfh_context *ctx,
-				       const struct ethtool_rxfh_param *rxfh);
+				       const struct ethtool_rxfh_param *rxfh,
+				       struct netlink_ext_ack *extack);
 	int	(*remove_rxfh_context)(struct net_device *,
 				       struct ethtool_rxfh_context *ctx,
-				       u32 rss_context);
+				       u32 rss_context,
+				       struct netlink_ext_ack *extack);
 	void	(*get_channels)(struct net_device *, struct ethtool_channels *);
 	int	(*set_channels)(struct net_device *, struct ethtool_channels *);
 	int	(*get_dump_flag)(struct net_device *, struct ethtool_dump *);
diff --git a/net/core/dev.c b/net/core/dev.c
index e875b0a579b4..9ca9424ea8b1 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -11205,7 +11205,7 @@ static void netdev_rss_contexts_free(struct net_device *dev)
 		xa_erase(&dev->ethtool->rss_ctx, context);
 		if (dev->ethtool_ops->create_rxfh_context)
 			dev->ethtool_ops->remove_rxfh_context(dev, ctx,
-							      context);
+							      context, NULL);
 		else
 			dev->ethtool_ops->set_rxfh(dev, &rxfh, NULL);
 		kfree(ctx);
diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c
index 2b75d84c3078..244e565e1365 100644
--- a/net/ethtool/ioctl.c
+++ b/net/ethtool/ioctl.c
@@ -1423,12 +1423,15 @@ static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev,
 
 	if (rxfh.rss_context && ops->create_rxfh_context) {
 		if (create)
-			ret = ops->create_rxfh_context(dev, ctx, &rxfh_dev);
+			ret = ops->create_rxfh_context(dev, ctx, &rxfh_dev,
+						       extack);
 		else if (rxfh_dev.rss_delete)
 			ret = ops->remove_rxfh_context(dev, ctx,
-						       rxfh.rss_context);
+						       rxfh.rss_context,
+						       extack);
 		else
-			ret = ops->modify_rxfh_context(dev, ctx, &rxfh_dev);
+			ret = ops->modify_rxfh_context(dev, ctx, &rxfh_dev,
+						       extack);
 	} else {
 		ret = ops->set_rxfh(dev, &rxfh_dev, extack);
 	}

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