43 lines
1.6 KiB
C
43 lines
1.6 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/****************************************************************************
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* Driver for Solarflare network controllers and boards
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* Copyright 2018 Solarflare Communications Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation, incorporated herein by reference.
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*/
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#ifndef EFX_RX_COMMON_H
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#define EFX_RX_COMMON_H
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/* Preferred number of descriptors to fill at once */
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#define EFX_RX_PREFERRED_BATCH 8U
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/* Each packet can consume up to ceil(max_frame_len / buffer_size) buffers */
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#define EFX_RX_MAX_FRAGS DIV_ROUND_UP(EFX_MAX_FRAME_LEN(EFX_MAX_MTU), \
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EFX_RX_USR_BUF_SIZE)
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void efx_rx_slow_fill(struct timer_list *t);
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int efx_probe_rx_queue(struct efx_rx_queue *rx_queue);
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void efx_init_rx_queue(struct efx_rx_queue *rx_queue);
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void efx_fini_rx_queue(struct efx_rx_queue *rx_queue);
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void efx_remove_rx_queue(struct efx_rx_queue *rx_queue);
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void efx_destroy_rx_queue(struct efx_rx_queue *rx_queue);
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void efx_init_rx_buffer(struct efx_rx_queue *rx_queue,
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struct page *page,
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unsigned int page_offset,
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u16 flags);
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void efx_unmap_rx_buffer(struct efx_nic *efx, struct efx_rx_buffer *rx_buf);
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void efx_free_rx_buffers(struct efx_rx_queue *rx_queue,
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struct efx_rx_buffer *rx_buf,
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unsigned int num_bufs);
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void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue);
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void efx_rx_config_page_split(struct efx_nic *efx);
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void efx_fast_push_rx_descriptors(struct efx_rx_queue *rx_queue, bool atomic);
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#endif
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