kernel: replace threaded NAPI implementation in 5.10 with upstream backport

This uses a kthread per NAPI instance instead of the workqueue approach

Signed-off-by: Felix Fietkau <nbd@nbd.name>

1 files changed, 0 insertions, 74 deletions

diff --git a/target/linux/generic/pending-5.10/691-net-add-sysfs-attribute-for-enabling-threaded-NAPI.patch b/target/linux/generic/pending-5.10/691-net-add-sysfs-attribute-for-enabling-threaded-NAPI.patch
deleted file mode 100644
index 279ae2c25a..0000000000
--- a/target/linux/generic/pending-5.10/691-net-add-sysfs-attribute-for-enabling-threaded-NAPI.patch
+++ /dev/null
@@ -1,74 +0,0 @@
-From: Felix Fietkau <nbd@nbd.name>
-Date: Fri, 21 Aug 2020 15:07:54 +0200
-Subject: [PATCH] net: add sysfs attribute for enabling threaded NAPI
-
-This can be used to enable threaded NAPI on drivers that did not explicitly
-request it.
-
-Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
-
---- a/net/core/net-sysfs.c
-+++ b/net/core/net-sysfs.c
-@@ -472,6 +472,52 @@ static ssize_t proto_down_store(struct d
- }
- NETDEVICE_SHOW_RW(proto_down, fmt_dec);
- 
-+static int change_napi_threaded(struct net_device *dev, unsigned long val)
-+{
-+	struct napi_struct *napi;
-+
-+	if (list_empty(&dev->napi_list))
-+		return -EOPNOTSUPP;
-+
-+	list_for_each_entry(napi, &dev->napi_list, dev_list) {
-+		if (val)
-+			set_bit(NAPI_STATE_THREADED, &napi->state);
-+		else
-+			clear_bit(NAPI_STATE_THREADED, &napi->state);
-+	}
-+
-+	return 0;
-+}
-+
-+static ssize_t napi_threaded_store(struct device *dev,
-+				struct device_attribute *attr,
-+				const char *buf, size_t len)
-+{
-+	return netdev_store(dev, attr, buf, len, change_napi_threaded);
-+}
-+
-+static ssize_t napi_threaded_show(struct device *dev,
-+				  struct device_attribute *attr,
-+				  char *buf)
-+{
-+	struct net_device *netdev = to_net_dev(dev);
-+	struct napi_struct *napi;
-+	bool enabled = false;
-+
-+	if (!rtnl_trylock())
-+		return restart_syscall();
-+
-+	list_for_each_entry(napi, &netdev->napi_list, dev_list) {
-+		if (test_bit(NAPI_STATE_THREADED, &napi->state))
-+			enabled = true;
-+	}
-+
-+	rtnl_unlock();
-+
-+	return sprintf(buf, fmt_dec, enabled);
-+}
-+static DEVICE_ATTR_RW(napi_threaded);
-+
- static ssize_t phys_port_id_show(struct device *dev,
- 				 struct device_attribute *attr, char *buf)
- {
-@@ -564,6 +610,7 @@ static struct attribute *net_class_attrs
- 	&dev_attr_tx_queue_len.attr,
- 	&dev_attr_gro_flush_timeout.attr,
- 	&dev_attr_napi_defer_hard_irqs.attr,
-+	&dev_attr_napi_threaded.attr,
- 	&dev_attr_phys_port_id.attr,
- 	&dev_attr_phys_port_name.attr,
- 	&dev_attr_phys_switch_id.attr,