Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
89 lines
2.0 KiB
C
89 lines
2.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef IOU_NAPI_H
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#define IOU_NAPI_H
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#include <linux/kernel.h>
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#include <linux/io_uring.h>
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#include <net/busy_poll.h>
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#ifdef CONFIG_NET_RX_BUSY_POLL
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void io_napi_init(struct io_ring_ctx *ctx);
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void io_napi_free(struct io_ring_ctx *ctx);
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int io_register_napi(struct io_ring_ctx *ctx, void __user *arg);
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int io_unregister_napi(struct io_ring_ctx *ctx, void __user *arg);
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int __io_napi_add_id(struct io_ring_ctx *ctx, unsigned int napi_id);
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void __io_napi_busy_loop(struct io_ring_ctx *ctx, struct io_wait_queue *iowq);
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int io_napi_sqpoll_busy_poll(struct io_ring_ctx *ctx);
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static inline bool io_napi(struct io_ring_ctx *ctx)
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{
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return !list_empty(&ctx->napi_list);
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}
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static inline void io_napi_busy_loop(struct io_ring_ctx *ctx,
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struct io_wait_queue *iowq)
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{
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if (!io_napi(ctx))
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return;
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__io_napi_busy_loop(ctx, iowq);
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}
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/*
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* io_napi_add() - Add napi id to the busy poll list
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* @req: pointer to io_kiocb request
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*
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* Add the napi id of the socket to the napi busy poll list and hash table.
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*/
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static inline void io_napi_add(struct io_kiocb *req)
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{
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struct io_ring_ctx *ctx = req->ctx;
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struct socket *sock;
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if (READ_ONCE(ctx->napi_track_mode) != IO_URING_NAPI_TRACKING_DYNAMIC)
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return;
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sock = sock_from_file(req->file);
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if (sock && sock->sk)
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__io_napi_add_id(ctx, READ_ONCE(sock->sk->sk_napi_id));
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}
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#else
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static inline void io_napi_init(struct io_ring_ctx *ctx)
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{
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}
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static inline void io_napi_free(struct io_ring_ctx *ctx)
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{
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}
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static inline int io_register_napi(struct io_ring_ctx *ctx, void __user *arg)
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{
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return -EOPNOTSUPP;
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}
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static inline int io_unregister_napi(struct io_ring_ctx *ctx, void __user *arg)
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{
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return -EOPNOTSUPP;
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}
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static inline bool io_napi(struct io_ring_ctx *ctx)
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{
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return false;
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}
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static inline void io_napi_add(struct io_kiocb *req)
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{
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}
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static inline void io_napi_busy_loop(struct io_ring_ctx *ctx,
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struct io_wait_queue *iowq)
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{
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}
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static inline int io_napi_sqpoll_busy_poll(struct io_ring_ctx *ctx)
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{
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return 0;
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}
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#endif /* CONFIG_NET_RX_BUSY_POLL */
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#endif
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