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Diffstat (limited to 'include/linux/if_tap.h')
-rw-r--r--include/linux/if_tap.h27
1 files changed, 16 insertions, 11 deletions
diff --git a/include/linux/if_tap.h b/include/linux/if_tap.h
index 4837157da0dc..553552fa635c 100644
--- a/include/linux/if_tap.h
+++ b/include/linux/if_tap.h
@@ -1,27 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_IF_TAP_H_
#define _LINUX_IF_TAP_H_
+#include <net/sock.h>
+#include <linux/skb_array.h>
+
+struct file;
+struct socket;
+
#if IS_ENABLED(CONFIG_TAP)
struct socket *tap_get_socket(struct file *);
-struct skb_array *tap_get_skb_array(struct file *file);
+struct ptr_ring *tap_get_ptr_ring(struct file *file);
#else
#include <linux/err.h>
#include <linux/errno.h>
-struct file;
-struct socket;
static inline struct socket *tap_get_socket(struct file *f)
{
return ERR_PTR(-EINVAL);
}
-static inline struct skb_array *tap_get_skb_array(struct file *f)
+static inline struct ptr_ring *tap_get_ptr_ring(struct file *f)
{
return ERR_PTR(-EINVAL);
}
#endif /* CONFIG_TAP */
-#include <net/sock.h>
-#include <linux/skb_array.h>
-
+/*
+ * Maximum times a tap device can be opened. This can be used to
+ * configure the number of receive queue, e.g. for multiqueue virtio.
+ */
#define MAX_TAP_QUEUES 256
struct tap_queue;
@@ -57,7 +63,6 @@ struct tap_dev {
struct tap_queue {
struct sock sk;
struct socket sock;
- struct socket_wq wq;
int vnet_hdr_sz;
struct tap_dev __rcu *tap;
struct file *file;
@@ -65,7 +70,7 @@ struct tap_queue {
u16 queue_index;
bool enabled;
struct list_head next;
- struct skb_array skb_array;
+ struct ptr_ring ring;
};
rx_handler_result_t tap_handle_frame(struct sk_buff **pskb);
@@ -73,8 +78,8 @@ void tap_del_queues(struct tap_dev *tap);
int tap_get_minor(dev_t major, struct tap_dev *tap);
void tap_free_minor(dev_t major, struct tap_dev *tap);
int tap_queue_resize(struct tap_dev *tap);
-int tap_create_cdev(struct cdev *tap_cdev,
- dev_t *tap_major, const char *device_name);
+int tap_create_cdev(struct cdev *tap_cdev, dev_t *tap_major,
+ const char *device_name, struct module *module);
void tap_destroy_cdev(dev_t major, struct cdev *tap_cdev);
#endif /*_LINUX_IF_TAP_H_*/