18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-only */ 28c2ecf20Sopenharmony_ci/**************************************************************************** 38c2ecf20Sopenharmony_ci * Driver for Solarflare network controllers and boards 48c2ecf20Sopenharmony_ci * Copyright 2018 Solarflare Communications Inc. 58c2ecf20Sopenharmony_ci * 68c2ecf20Sopenharmony_ci * This program is free software; you can redistribute it and/or modify it 78c2ecf20Sopenharmony_ci * under the terms of the GNU General Public License version 2 as published 88c2ecf20Sopenharmony_ci * by the Free Software Foundation, incorporated herein by reference. 98c2ecf20Sopenharmony_ci */ 108c2ecf20Sopenharmony_ci 118c2ecf20Sopenharmony_ci#ifndef EFX_TX_COMMON_H 128c2ecf20Sopenharmony_ci#define EFX_TX_COMMON_H 138c2ecf20Sopenharmony_ci 148c2ecf20Sopenharmony_ciint efx_probe_tx_queue(struct efx_tx_queue *tx_queue); 158c2ecf20Sopenharmony_civoid efx_init_tx_queue(struct efx_tx_queue *tx_queue); 168c2ecf20Sopenharmony_civoid efx_fini_tx_queue(struct efx_tx_queue *tx_queue); 178c2ecf20Sopenharmony_civoid efx_remove_tx_queue(struct efx_tx_queue *tx_queue); 188c2ecf20Sopenharmony_ci 198c2ecf20Sopenharmony_civoid efx_dequeue_buffer(struct efx_tx_queue *tx_queue, 208c2ecf20Sopenharmony_ci struct efx_tx_buffer *buffer, 218c2ecf20Sopenharmony_ci unsigned int *pkts_compl, 228c2ecf20Sopenharmony_ci unsigned int *bytes_compl); 238c2ecf20Sopenharmony_ci 248c2ecf20Sopenharmony_cistatic inline bool efx_tx_buffer_in_use(struct efx_tx_buffer *buffer) 258c2ecf20Sopenharmony_ci{ 268c2ecf20Sopenharmony_ci return buffer->len || (buffer->flags & EFX_TX_BUF_OPTION); 278c2ecf20Sopenharmony_ci} 288c2ecf20Sopenharmony_ci 298c2ecf20Sopenharmony_civoid efx_xmit_done_check_empty(struct efx_tx_queue *tx_queue); 308c2ecf20Sopenharmony_civoid efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index); 318c2ecf20Sopenharmony_ci 328c2ecf20Sopenharmony_civoid efx_enqueue_unwind(struct efx_tx_queue *tx_queue, 338c2ecf20Sopenharmony_ci unsigned int insert_count); 348c2ecf20Sopenharmony_ci 358c2ecf20Sopenharmony_cistruct efx_tx_buffer *efx_tx_map_chunk(struct efx_tx_queue *tx_queue, 368c2ecf20Sopenharmony_ci dma_addr_t dma_addr, size_t len); 378c2ecf20Sopenharmony_ciint efx_tx_tso_header_length(struct sk_buff *skb); 388c2ecf20Sopenharmony_ciint efx_tx_map_data(struct efx_tx_queue *tx_queue, struct sk_buff *skb, 398c2ecf20Sopenharmony_ci unsigned int segment_count); 408c2ecf20Sopenharmony_ci 418c2ecf20Sopenharmony_ciunsigned int efx_tx_max_skb_descs(struct efx_nic *efx); 428c2ecf20Sopenharmony_ciint efx_tx_tso_fallback(struct efx_tx_queue *tx_queue, struct sk_buff *skb); 438c2ecf20Sopenharmony_ci 448c2ecf20Sopenharmony_ciextern bool efx_separate_tx_channels; 458c2ecf20Sopenharmony_ci#endif 46