Linux kernel mirror (for testing)
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _LINUX_NETDEV_RX_QUEUE_H
3#define _LINUX_NETDEV_RX_QUEUE_H
4
5#include <linux/kobject.h>
6#include <linux/netdevice.h>
7#include <linux/sysfs.h>
8#include <net/xdp.h>
9#include <net/page_pool/types.h>
10
11/* This structure contains an instance of an RX queue. */
12struct netdev_rx_queue {
13 struct xdp_rxq_info xdp_rxq;
14#ifdef CONFIG_RPS
15 struct rps_map __rcu *rps_map;
16 struct rps_dev_flow_table __rcu *rps_flow_table;
17#endif
18 struct kobject kobj;
19 const struct attribute_group **groups;
20 struct net_device *dev;
21 netdevice_tracker dev_tracker;
22
23 /* All fields below are "ops protected",
24 * see comment about net_device::lock
25 */
26#ifdef CONFIG_XDP_SOCKETS
27 struct xsk_buff_pool *pool;
28#endif
29 struct napi_struct *napi;
30 struct pp_memory_provider_params mp_params;
31} ____cacheline_aligned_in_smp;
32
33/*
34 * RX queue sysfs structures and functions.
35 */
36struct rx_queue_attribute {
37 struct attribute attr;
38 ssize_t (*show)(struct netdev_rx_queue *queue, char *buf);
39 ssize_t (*store)(struct netdev_rx_queue *queue,
40 const char *buf, size_t len);
41};
42
43static inline struct netdev_rx_queue *
44__netif_get_rx_queue(struct net_device *dev, unsigned int rxq)
45{
46 return dev->_rx + rxq;
47}
48
49static inline unsigned int
50get_netdev_rx_queue_index(struct netdev_rx_queue *queue)
51{
52 struct net_device *dev = queue->dev;
53 int index = queue - dev->_rx;
54
55 BUG_ON(index >= dev->num_rx_queues);
56 return index;
57}
58
59int netdev_rx_queue_restart(struct net_device *dev, unsigned int rxq);
60
61#endif