84 lines · 2.2 KB · C
RawDownload
/* 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>#include <net/page_pool/types.h>#include <net/netdev_queues.h>#include <net/rps-types.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;	rps_tag_ptr			rps_flow_table;#endif	struct kobject			kobj;	const struct attribute_group	**groups;	struct net_device		*dev;	netdevice_tracker		dev_tracker; 	/* All fields below are "ops protected",	 * see comment about net_device::lock	 */#ifdef CONFIG_XDP_SOCKETS	struct xsk_buff_pool            *pool;#endif	struct napi_struct		*napi;	struct netdev_queue_config	qcfg;	struct pp_memory_provider_params mp_params; 	/* If a queue is leased, then the lease pointer is always	 * valid. From the physical device it points to the virtual	 * queue, and from the virtual device it points to the	 * physical queue.	 */	struct netdev_rx_queue		*lease;	netdevice_tracker		lease_tracker;} ____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;} static inline unsigned intget_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;} enum netif_lease_dir {	NETIF_VIRT_TO_PHYS,	NETIF_PHYS_TO_VIRT,}; struct netdev_rx_queue *__netif_get_rx_queue_lease(struct net_device **dev, unsigned int *rxq,			   enum netif_lease_dir dir); int netdev_rx_queue_restart(struct net_device *dev, unsigned int rxq);void netdev_rx_queue_lease(struct netdev_rx_queue *rxq_dst,			   struct netdev_rx_queue *rxq_src);void netdev_rx_queue_unlease(struct netdev_rx_queue *rxq_dst,			     struct netdev_rx_queue *rxq_src);#endif /* _LINUX_NETDEV_RX_QUEUE_H */