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Diffstat (limited to 'net/core')
-rw-r--r--net/core/dev.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index c0c6e200e17f..bce810f8ae53 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -10336,6 +10336,9 @@ int register_netdevice(struct net_device *dev)
if (ret)
return ret;
+ /* rss ctx ID 0 is reserved for the default context, start from 1 */
+ xa_init_flags(&dev->ethtool->rss_ctx, XA_FLAGS_ALLOC1);
+
spin_lock_init(&dev->addr_list_lock);
netdev_set_addr_lockdep_class(dev);
@@ -11235,6 +11238,28 @@ void synchronize_net(void)
}
EXPORT_SYMBOL(synchronize_net);
+static void netdev_rss_contexts_free(struct net_device *dev)
+{
+ struct ethtool_rxfh_context *ctx;
+ unsigned long context;
+
+ xa_for_each(&dev->ethtool->rss_ctx, context, ctx) {
+ struct ethtool_rxfh_param rxfh;
+
+ rxfh.indir = ethtool_rxfh_context_indir(ctx);
+ rxfh.key = ethtool_rxfh_context_key(ctx);
+ rxfh.hfunc = ctx->hfunc;
+ rxfh.input_xfrm = ctx->input_xfrm;
+ rxfh.rss_context = context;
+ rxfh.rss_delete = true;
+
+ xa_erase(&dev->ethtool->rss_ctx, context);
+ dev->ethtool_ops->set_rxfh(dev, &rxfh, NULL);
+ kfree(ctx);
+ }
+ xa_destroy(&dev->ethtool->rss_ctx);
+}
+
/**
* unregister_netdevice_queue - remove device from the kernel
* @dev: device
@@ -11338,6 +11363,8 @@ void unregister_netdevice_many_notify(struct list_head *head,
netdev_name_node_alt_flush(dev);
netdev_name_node_free(dev->name_node);
+ netdev_rss_contexts_free(dev);
+
call_netdevice_notifiers(NETDEV_PRE_UNINIT, dev);
if (dev->netdev_ops->ndo_uninit)