mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-16 16:54:20 +08:00
b6459415b3
sock.h is pretty heavily used (5k objects rebuilt on x86 after it's touched). We can drop the include of filter.h from it and add a forward declaration of struct sk_filter instead. This decreases the number of rebuilt objects when bpf.h is touched from ~5k to ~1k. There's a lot of missing includes this was masking. Primarily in networking tho, this time. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com> Acked-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://lore.kernel.org/bpf/20211229004913.513372-1-kuba@kernel.org
103 lines
2.1 KiB
C
103 lines
2.1 KiB
C
/* 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/bpf.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 */
|