/* 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_umem_props { u64 chunk_mask; u64 size; }; struct xdp_umem_page { void *addr; dma_addr_t dma; }; struct xdp_umem { struct xsk_queue *fq; struct xsk_queue *cq; struct xdp_umem_page *pages; struct xdp_umem_props props; u32 headroom; u32 chunk_size_nohr; struct user_struct *user; struct pid *pid; unsigned long address; refcount_t users; struct work_struct work; struct page **pgs; u32 npgs; struct net_device *dev; u16 queue_id; bool zc; spinlock_t xsk_list_lock; struct list_head xsk_list; }; struct xdp_sock { /* struct sock must be the first member of struct xdp_sock */ struct sock sk; struct xsk_queue *rx; struct net_device *dev; struct xdp_umem *umem; struct list_head flush_node; u16 queue_id; struct xsk_queue *tx ____cacheline_aligned_in_smp; struct list_head list; bool zc; /* Protects multiple processes in the control path */ struct mutex mutex; /* Mutual exclusion of NAPI TX thread and sendmsg error paths * in the SKB destructor callback. */ spinlock_t tx_completion_lock; u64 rx_dropped; }; struct xdp_buff; #ifdef CONFIG_XDP_SOCKETS int xsk_generic_rcv(struct xdp_sock *xs, struct xdp_buff *xdp); int xsk_rcv(struct xdp_sock *xs, struct xdp_buff *xdp); void xsk_flush(struct xdp_sock *xs); bool xsk_is_setup_for_bpf_map(struct xdp_sock *xs); /* Used from netdev driver */ u64 *xsk_umem_peek_addr(struct xdp_umem *umem, u64 *addr); void xsk_umem_discard_addr(struct xdp_umem *umem); void xsk_umem_complete_tx(struct xdp_umem *umem, u32 nb_entries); bool xsk_umem_consume_tx(struct xdp_umem *umem, dma_addr_t *dma, u32 *len); void xsk_umem_consume_tx_done(struct xdp_umem *umem); #else
static inline int xsk_generic_rcv(struct xdp_sock *xs, struct xdp_buff *xdp) { return -ENOTSUPP; }Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Björn Töpel | 21 | 100.00% | 1 | 100.00% |
| Total | 21 | 100.00% | 1 | 100.00% |
| Person | Tokens | Prop | Commits | CommitProp |
| Björn Töpel | 21 | 100.00% | 1 | 100.00% |
| Total | 21 | 100.00% | 1 | 100.00% |
| Person | Tokens | Prop | Commits | CommitProp |
| Björn Töpel | 11 | 100.00% | 1 | 100.00% |
| Total | 11 | 100.00% | 1 | 100.00% |
| Person | Tokens | Prop | Commits | CommitProp |
| Björn Töpel | 15 | 100.00% | 1 | 100.00% |
| Total | 15 | 100.00% | 1 | 100.00% |
| Person | Tokens | Prop | Commits | CommitProp |
| Björn Töpel | 311 | 81.84% | 8 | 66.67% |
| Magnus Karlsson | 69 | 18.16% | 4 | 33.33% |
| Total | 380 | 100.00% | 12 | 100.00% |