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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_NETDEV_RX_QUEUE_H
#define _LINUX_NETDEV_RX_QUEUE_H
#include <linux/kobject.h>
#include <linux/netdevice.h>
#include <linux/sysfs.h>
#include <net/xdp.h>
/* This structure contains an instance of an RX queue. */
struct netdev_rx_queue {
struct xdp_rxq_info xdp_rxq;
#ifdef CONFIG_RPS
struct rps_map __rcu *rps_map;
struct rps_dev_flow_table __rcu *rps_flow_table;
#endif
struct kobject kobj;
struct net_device *dev;
netdevice_tracker dev_tracker;
#ifdef CONFIG_XDP_SOCKETS
struct xsk_buff_pool *pool;
#endif
/* NAPI instance for the queue
* Readers and writers must hold RTNL
*/
struct napi_struct *napi;
} ____cacheline_aligned_in_smp;
/*
* RX queue sysfs structures and functions.
*/
struct rx_queue_attribute {
struct attribute attr;
ssize_t (*show)(struct netdev_rx_queue *queue, char *buf);
ssize_t (*store)(struct netdev_rx_queue *queue,
const char *buf, size_t len);
};
static inline struct netdev_rx_queue *
__netif_get_rx_queue(struct net_device *dev, unsigned int rxq)
{
return dev->_rx + rxq;
}
#ifdef CONFIG_SYSFS
static inline unsigned int
get_netdev_rx_queue_index(struct netdev_rx_queue *queue)
{
struct net_device *dev = queue->dev;
int index = queue - dev->_rx;
BUG_ON(index >= dev->num_rx_queues);
return index;
}
#endif
#endif