One Hat Cyber Team
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Linux agrigation-prod 5.15.0-67-generic #74-Ubuntu SMP Wed Feb 22 14:14:39 UTC 2023 x86_64
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nginx/1.24.0
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linux-headers-5.15.0-136
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View File Name :
xdp_sock.h
/* SPDX-License-Identifier: GPL-2.0 */ /* AF_XDP internal functions * Copyright(c) 2018 Intel Corporation. */ #ifndef _LINUX_XDP_SOCK_H #define _LINUX_XDP_SOCK_H #include <linux/workqueue.h> #include <linux/if_xdp.h> #include <linux/mutex.h> #include <linux/spinlock.h> #include <linux/mm.h> #include <net/sock.h> struct net_device; struct xsk_queue; struct xdp_buff; struct xdp_umem { void *addrs; u64 size; u32 headroom; u32 chunk_size; u32 chunks; u32 npgs; struct user_struct *user; refcount_t users; u8 flags; bool zc; struct page **pgs; int id; struct list_head xsk_dma_list; struct work_struct work; }; struct xsk_map { struct bpf_map map; spinlock_t lock; /* Synchronize map updates */ struct xdp_sock __rcu *xsk_map[]; }; struct xdp_sock { /* struct sock must be the first member of struct xdp_sock */ struct sock sk; struct xsk_queue *rx ____cacheline_aligned_in_smp; struct net_device *dev; struct xdp_umem *umem; struct list_head flush_node; struct xsk_buff_pool *pool; u16 queue_id; bool zc; enum { XSK_READY = 0, XSK_BOUND, XSK_UNBOUND, } state; struct xsk_queue *tx ____cacheline_aligned_in_smp; struct list_head tx_list; /* Protects generic receive. */ spinlock_t rx_lock; /* Statistics */ u64 rx_dropped; u64 rx_queue_full; struct list_head map_list; /* Protects map_list */ spinlock_t map_list_lock; /* Protects multiple processes in the control path */ struct mutex mutex; struct xsk_queue *fq_tmp; /* Only as tmp storage before bind */ struct xsk_queue *cq_tmp; /* Only as tmp storage before bind */ }; #ifdef CONFIG_XDP_SOCKETS int xsk_generic_rcv(struct xdp_sock *xs, struct xdp_buff *xdp); int __xsk_map_redirect(struct xdp_sock *xs, struct xdp_buff *xdp); void __xsk_map_flush(void); #else static inline int xsk_generic_rcv(struct xdp_sock *xs, struct xdp_buff *xdp) { return -ENOTSUPP; } static inline int __xsk_map_redirect(struct xdp_sock *xs, struct xdp_buff *xdp) { return -EOPNOTSUPP; } static inline void __xsk_map_flush(void) { } #endif /* CONFIG_XDP_SOCKETS */ #endif /* _LINUX_XDP_SOCK_H */