| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | #ifndef __FP_DEVICE_H__ |
| 2 | #define __FP_DEVICE_H__ |
| 3 | |
| 4 | #define FP_DEV_MASK_GB6_SET 0 |
| 5 | #define FP_DEV_MASK_LL6_SET 1 |
| 6 | #define FP_DEV_MASK_MTU_SET 2 |
| 7 | |
| 8 | struct fp_dev_list { |
| 9 | struct list_head devices_list; |
| 10 | spinlock_t list_lock; |
| 11 | wait_queue_head_t wq; |
| 12 | atomic_t dev_count; |
| 13 | struct workqueue_struct *dev_put_wq; |
| 14 | }; |
| 15 | |
| 16 | struct fp_dev_work { |
| 17 | struct list_head list; |
| 18 | struct fp_dev_list *fpdl; |
| 19 | struct delayed_work work; |
| 20 | struct fp_net_device *fpdev; |
| 21 | }; |
| 22 | |
| 23 | struct fp_net_device_stats { |
| 24 | unsigned long rx_packets; |
| 25 | unsigned long tx_packets; |
| 26 | unsigned long rx_bytes; |
| 27 | unsigned long tx_bytes; |
| 28 | unsigned long rx_errors; |
| 29 | unsigned long tx_errors; |
| 30 | unsigned long rx_dropped; |
| 31 | unsigned long tx_dropped; |
| 32 | unsigned long queue_stopped; |
| 33 | }; |
| 34 | |
| 35 | struct fp_net_device { |
| 36 | struct kobject kobj; |
| 37 | struct rcu_head rcu; |
| 38 | struct list_head list; |
| 39 | struct work_struct free_work; |
| 40 | struct net_device *dev; /* associated net_device */ |
| 41 | struct net_device *br; /* bridge to which this device is attached */ |
| 42 | atomic_t refcnt; |
| 43 | unsigned long flags; |
| 44 | bool forward; /* fastpath forwarding enabled/disabled */ |
| 45 | struct fp_net_device_stats stats; |
| 46 | struct in6_addr ll6addr; |
| 47 | struct in6_addr gb6addr; |
| 48 | u8 prefixlen; |
| 49 | u32 mtu; |
| 50 | }; |
| 51 | |
| 52 | int fpdev_add_if(struct net_device *dev); |
| 53 | int fpdev_del_if(struct net_device *dev); |
| 54 | struct fp_net_device *fpdev_get_if(struct net_device *dev); |
| 55 | struct fp_net_device *fpdev_get_ccinet(void); |
| 56 | void destroy_fpdev_rcu(struct rcu_head *rcu); |
| 57 | |
| 58 | static inline int fpdev_cmp_if(struct fp_net_device *fdev, struct net_device *dev) |
| 59 | { |
| 60 | return (fdev->dev == dev); |
| 61 | } |
| 62 | |
| 63 | /* increment reference to a fastpath device */ |
| 64 | static inline struct fp_net_device *fpdev_hold(struct fp_net_device *fpdev) |
| 65 | { |
| 66 | if (fpdev && !atomic_inc_not_zero(&fpdev->refcnt)) |
| 67 | return NULL; |
| 68 | return fpdev; |
| 69 | } |
| 70 | |
| 71 | /* decrement reference to a fastpath device */ |
| 72 | static inline void fpdev_put(struct fp_net_device *fpdev) |
| 73 | { |
| 74 | if (fpdev && atomic_dec_and_test(&fpdev->refcnt)) |
| 75 | call_rcu(&fpdev->rcu, destroy_fpdev_rcu); |
| 76 | } |
| 77 | |
| 78 | static inline void fpdev_set_gb6(struct fp_net_device *fpdev) |
| 79 | { |
| 80 | set_bit(FP_DEV_MASK_GB6_SET, &fpdev->flags); |
| 81 | } |
| 82 | |
| 83 | static inline int fpdev_is_gb6_set(struct fp_net_device *fpdev) |
| 84 | { |
| 85 | return test_bit(FP_DEV_MASK_GB6_SET, &fpdev->flags); |
| 86 | } |
| 87 | |
| 88 | static inline void fpdev_clear_gb6(struct fp_net_device *fpdev) |
| 89 | { |
| 90 | clear_bit(FP_DEV_MASK_GB6_SET, &fpdev->flags); |
| 91 | } |
| 92 | |
| 93 | static inline void fpdev_set_ll6(struct fp_net_device *fpdev) |
| 94 | { |
| 95 | set_bit(FP_DEV_MASK_LL6_SET, &fpdev->flags); |
| 96 | } |
| 97 | |
| 98 | static inline int fpdev_is_ll6_set(struct fp_net_device *fpdev) |
| 99 | { |
| 100 | return test_bit(FP_DEV_MASK_LL6_SET, &fpdev->flags); |
| 101 | } |
| 102 | |
| 103 | static inline void fpdev_clear_mtu(struct fp_net_device *fpdev) |
| 104 | { |
| 105 | clear_bit(FP_DEV_MASK_MTU_SET, &fpdev->flags); |
| 106 | } |
| 107 | |
| 108 | static inline void fpdev_set_mtu(struct fp_net_device *fpdev) |
| 109 | { |
| 110 | set_bit(FP_DEV_MASK_MTU_SET, &fpdev->flags); |
| 111 | } |
| 112 | |
| 113 | static inline int fpdev_is_mtu_set(struct fp_net_device *fpdev) |
| 114 | { |
| 115 | return test_bit(FP_DEV_MASK_MTU_SET, &fpdev->flags); |
| 116 | } |
| 117 | |
| 118 | static inline void fpdev_clear_ll6(struct fp_net_device *fpdev) |
| 119 | { |
| 120 | clear_bit(FP_DEV_MASK_LL6_SET, &fpdev->flags); |
| 121 | } |
| 122 | |
| 123 | #endif |