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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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5495c58c65
Add XSk counterparts for preparing XSk &libeth_xdp_buff (adding head and frags), running the program, and handling the verdict, inc. XDP_PASS. Shortcuts in comparison with regular Rx: frags and all verdicts except XDP_REDIRECT are under unlikely() and out of line; no checks for XDP program presence as it's always true for XSk. Suggested-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> # optimizations Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
38 lines
870 B
C
38 lines
870 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* Copyright (C) 2025 Intel Corporation */
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#ifndef __LIBETH_PRIV_H
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#define __LIBETH_PRIV_H
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#include <linux/types.h>
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/* XDP */
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enum xdp_action;
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struct libeth_xdp_buff;
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struct libeth_xdp_tx_frame;
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struct skb_shared_info;
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struct xdp_frame_bulk;
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extern const struct xsk_tx_metadata_ops libeth_xsktmo_slow;
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void libeth_xsk_tx_return_bulk(const struct libeth_xdp_tx_frame *bq,
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u32 count);
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u32 libeth_xsk_prog_exception(struct libeth_xdp_buff *xdp, enum xdp_action act,
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int ret);
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struct libeth_xdp_ops {
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void (*bulk)(const struct skb_shared_info *sinfo,
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struct xdp_frame_bulk *bq, bool frags);
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void (*xsk)(struct libeth_xdp_buff *xdp);
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};
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void libeth_attach_xdp(const struct libeth_xdp_ops *ops);
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static inline void libeth_detach_xdp(void)
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{
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libeth_attach_xdp(NULL);
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}
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#endif /* __LIBETH_PRIV_H */
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