c2d3d6a474
Move queue_id, dev, and need_wakeup from the umem to the buffer pool. This so that we in a later commit can share the umem between multiple HW queues. There is one buffer pool per dev and queue id, so these variables should belong to the buffer pool, not the umem. Need_wakeup is also something that is set on a per napi level, so there is usually one per device and queue id. So move this to the buffer pool too. Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Björn Töpel <bjorn.topel@intel.com> Link: https://lore.kernel.org/bpf/1598603189-32145-6-git-send-email-magnus.karlsson@intel.com
52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright(c) 2019 Intel Corporation. */
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#ifndef XSK_H_
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#define XSK_H_
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/* Masks for xdp_umem_page flags.
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* The low 12-bits of the addr will be 0 since this is the page address, so we
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* can use them for flags.
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*/
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#define XSK_NEXT_PG_CONTIG_SHIFT 0
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#define XSK_NEXT_PG_CONTIG_MASK BIT_ULL(XSK_NEXT_PG_CONTIG_SHIFT)
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struct xdp_ring_offset_v1 {
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__u64 producer;
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__u64 consumer;
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__u64 desc;
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};
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struct xdp_mmap_offsets_v1 {
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struct xdp_ring_offset_v1 rx;
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struct xdp_ring_offset_v1 tx;
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struct xdp_ring_offset_v1 fr;
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struct xdp_ring_offset_v1 cr;
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};
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/* Nodes are linked in the struct xdp_sock map_list field, and used to
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* track which maps a certain socket reside in.
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*/
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struct xsk_map_node {
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struct list_head node;
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struct xsk_map *map;
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struct xdp_sock **map_entry;
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};
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static inline struct xdp_sock *xdp_sk(struct sock *sk)
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{
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return (struct xdp_sock *)sk;
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}
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bool xsk_is_setup_for_bpf_map(struct xdp_sock *xs);
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void xsk_map_try_sock_delete(struct xsk_map *map, struct xdp_sock *xs,
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struct xdp_sock **map_entry);
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int xsk_map_inc(struct xsk_map *map);
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void xsk_map_put(struct xsk_map *map);
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void xsk_clear_pool_at_qid(struct net_device *dev, u16 queue_id);
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int xsk_reg_pool_at_qid(struct net_device *dev, struct xsk_buff_pool *pool,
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u16 queue_id);
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#endif /* XSK_H_ */
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