Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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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 struct net_device *dev;
20 netdevice_tracker dev_tracker;
21
22#ifdef CONFIG_XDP_SOCKETS
23 struct xsk_buff_pool *pool;
24#endif
25 /* NAPI instance for the queue
26 * Readers and writers must hold RTNL
27 */
28 struct napi_struct *napi;
29 struct pp_memory_provider_params mp_params;
30} ____cacheline_aligned_in_smp;
31
32/*
33 * RX queue sysfs structures and functions.
34 */
35struct rx_queue_attribute {
36 struct attribute attr;
37 ssize_t (*show)(struct netdev_rx_queue *queue, char *buf);
38 ssize_t (*store)(struct netdev_rx_queue *queue,
39 const char *buf, size_t len);
40};
41
42static inline struct netdev_rx_queue *
43__netif_get_rx_queue(struct net_device *dev, unsigned int rxq)
44{
45 return dev->_rx + rxq;
46}
47
48static inline unsigned int
49get_netdev_rx_queue_index(struct netdev_rx_queue *queue)
50{
51 struct net_device *dev = queue->dev;
52 int index = queue - dev->_rx;
53
54 BUG_ON(index >= dev->num_rx_queues);
55 return index;
56}
57
58int netdev_rx_queue_restart(struct net_device *dev, unsigned int rxq);
59
60#endif