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