xref: /openbmc/linux/net/qrtr/qrtr.h (revision 4beb17e5)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __QRTR_H_
3 #define __QRTR_H_
4 
5 #include <linux/types.h>
6 
7 struct sk_buff;
8 
9 /* endpoint node id auto assignment */
10 #define QRTR_EP_NID_AUTO (-1)
11 
12 /**
13  * struct qrtr_endpoint - endpoint handle
14  * @xmit: Callback for outgoing packets
15  *
16  * The socket buffer passed to the xmit function becomes owned by the endpoint
17  * driver.  As such, when the driver is done with the buffer, it should
18  * call kfree_skb() on failure, or consume_skb() on success.
19  */
20 struct qrtr_endpoint {
21 	int (*xmit)(struct qrtr_endpoint *ep, struct sk_buff *skb);
22 	/* private: not for endpoint use */
23 	struct qrtr_node *node;
24 };
25 
26 int qrtr_endpoint_register(struct qrtr_endpoint *ep, unsigned int nid);
27 
28 void qrtr_endpoint_unregister(struct qrtr_endpoint *ep);
29 
30 int qrtr_endpoint_post(struct qrtr_endpoint *ep, const void *data, size_t len);
31 
32 int qrtr_ns_init(void);
33 
34 void qrtr_ns_remove(void);
35 
36 #endif
37