| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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| 2 | /**************************************************************************** |
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| 3 | * Driver for Solarflare network controllers and boards |
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| 4 | * Copyright 2018 Solarflare Communications Inc. |
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| 5 | * |
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| 6 | * This program is free software; you can redistribute it and/or modify it |
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| 7 | * under the terms of the GNU General Public License version 2 as published |
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| 8 | * by the Free Software Foundation, incorporated herein by reference. |
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| 9 | */ |
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| 10 | |
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| 11 | #ifndef EFX_TX_COMMON_H |
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| 12 | #define EFX_TX_COMMON_H |
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| 13 | |
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| 14 | int efx_probe_tx_queue(struct efx_tx_queue *tx_queue); |
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| 15 | void efx_init_tx_queue(struct efx_tx_queue *tx_queue); |
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| 16 | void efx_fini_tx_queue(struct efx_tx_queue *tx_queue); |
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| 17 | void efx_remove_tx_queue(struct efx_tx_queue *tx_queue); |
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| 18 | |
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| 19 | void efx_dequeue_buffer(struct efx_tx_queue *tx_queue, |
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| 20 | struct efx_tx_buffer *buffer, |
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| 21 | unsigned int *pkts_compl, |
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| 22 | unsigned int *bytes_compl, |
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| 23 | unsigned int *efv_pkts_compl); |
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| 24 | |
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| 25 | static inline bool efx_tx_buffer_in_use(struct efx_tx_buffer *buffer) |
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| 26 | { |
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| 27 | return buffer->len || (buffer->flags & EFX_TX_BUF_OPTION); |
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| 28 | } |
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| 29 | |
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| 30 | void efx_xmit_done_check_empty(struct efx_tx_queue *tx_queue); |
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| 31 | int efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index); |
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| 32 | |
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| 33 | void efx_enqueue_unwind(struct efx_tx_queue *tx_queue, |
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| 34 | unsigned int insert_count); |
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| 35 | |
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| 36 | struct efx_tx_buffer *efx_tx_map_chunk(struct efx_tx_queue *tx_queue, |
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| 37 | dma_addr_t dma_addr, size_t len); |
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| 38 | int (struct sk_buff *skb); |
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| 39 | int efx_tx_map_data(struct efx_tx_queue *tx_queue, struct sk_buff *skb, |
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| 40 | unsigned int segment_count); |
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| 41 | |
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| 42 | unsigned int efx_tx_max_skb_descs(struct efx_nic *efx); |
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| 43 | int efx_tx_tso_fallback(struct efx_tx_queue *tx_queue, struct sk_buff *skb); |
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| 44 | |
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| 45 | extern bool efx_separate_tx_channels; |
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| 46 | #endif |
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| 47 | |
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