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 <linux/android_kabi.h> 10 11 /* This structure contains an instance of an RX queue. */ 12 struct 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 ANDROID_KABI_RESERVE(1); 26 ANDROID_KABI_RESERVE(2); 27 ANDROID_KABI_RESERVE(3); 28 ANDROID_KABI_RESERVE(4); 29 } ____cacheline_aligned_in_smp; 30 31 /* 32 * RX queue sysfs structures and functions. 33 */ 34 struct rx_queue_attribute { 35 struct attribute attr; 36 ssize_t (*show)(struct netdev_rx_queue *queue, char *buf); 37 ssize_t (*store)(struct netdev_rx_queue *queue, 38 const char *buf, size_t len); 39 }; 40 41 static inline struct netdev_rx_queue * __netif_get_rx_queue(struct net_device * dev,unsigned int rxq)42__netif_get_rx_queue(struct net_device *dev, unsigned int rxq) 43 { 44 return dev->_rx + rxq; 45 } 46 47 #ifdef CONFIG_SYSFS 48 static inline unsigned int get_netdev_rx_queue_index(struct netdev_rx_queue * queue)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 #endif 58 #endif 59