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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128/* SPDX-License-Identifier: GPL-2.0-only *//* Copyright (C) 2024-2025 Intel Corporation */
#ifndef __LIBETH_TYPES_H#define __LIBETH_TYPES_H
#include <linux/workqueue.h>
/* Stats */
/** * struct libeth_rq_napi_stats - "hot" counters to update in Rx polling loop * @packets: received frames counter * @bytes: sum of bytes of received frames above * @fragments: sum of fragments of received S/G frames * @hsplit: number of frames the device performed the header split for * @raw: alias to access all the fields as an array */struct libeth_rq_napi_stats { union { struct { u32 packets; u32 bytes; u32 fragments; u32 hsplit; }; DECLARE_FLEX_ARRAY(u32, raw); };};
/** * struct libeth_sq_napi_stats - "hot" counters to update in Tx completion loop * @packets: completed frames counter * @bytes: sum of bytes of completed frames above * @raw: alias to access all the fields as an array */struct libeth_sq_napi_stats { union { struct { u32 packets; u32 bytes; }; DECLARE_FLEX_ARRAY(u32, raw); };};
/** * struct libeth_xdpsq_napi_stats - "hot" counters to update in XDP Tx * completion loop * @packets: completed frames counter * @bytes: sum of bytes of completed frames above * @fragments: sum of fragments of completed S/G frames * @raw: alias to access all the fields as an array */struct libeth_xdpsq_napi_stats { union { struct { u32 packets; u32 bytes; u32 fragments; }; DECLARE_FLEX_ARRAY(u32, raw); };};
/* XDP */
/* * The following structures should be embedded into driver's queue structure * and passed to the libeth_xdp helpers, never used directly. */
/* XDPSQ sharing */
/** * struct libeth_xdpsq_lock - locking primitive for sharing XDPSQs * @lock: spinlock for locking the queue * @share: whether this particular queue is shared */struct libeth_xdpsq_lock { spinlock_t lock; bool share;};
/* XDPSQ clean-up timers */
/** * struct libeth_xdpsq_timer - timer for cleaning up XDPSQs w/o interrupts * @xdpsq: queue this timer belongs to * @lock: lock for the queue * @dwork: work performing cleanups * * XDPSQs not using interrupts but lazy cleaning, i.e. only when there's no * space for sending the current queued frame/bulk, must fire up timers to * make sure there are no stale buffers to free. */struct libeth_xdpsq_timer { void *xdpsq; struct libeth_xdpsq_lock *lock;
struct delayed_work dwork;};
/* Rx polling path */
/** * struct libeth_xdp_buff_stash - struct for stashing &xdp_buff onto a queue * @data: pointer to the start of the frame, xdp_buff.data * @headroom: frame headroom, xdp_buff.data - xdp_buff.data_hard_start * @len: frame linear space length, xdp_buff.data_end - xdp_buff.data * @frame_sz: truesize occupied by the frame, xdp_buff.frame_sz * @flags: xdp_buff.flags * * &xdp_buff is 56 bytes long on x64, &libeth_xdp_buff is 64 bytes. This * structure carries only necessary fields to save/restore a partially built * frame on the queue structure to finish it during the next NAPI poll. */struct libeth_xdp_buff_stash { void *data; u16 headroom; u16 len;
u32 frame_sz:24; u32 flags:8;} __aligned_largest;
#endif /* __LIBETH_TYPES_H */