drivers/net/ethernet/sfc/siena/tx_common.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /****************************************************************************
   3  * Driver for Solarflare network controllers and boards
   4  * Copyright 2018 Solarflare Communications Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 as published
   8  * by the Free Software Foundation, incorporated herein by reference.
   9  */
  10
  11 #ifndef EFX_TX_COMMON_H
  12 #define EFX_TX_COMMON_H
  13
  14 int efx_siena_probe_tx_queue(struct efx_tx_queue *tx_queue);
  15 void efx_siena_init_tx_queue(struct efx_tx_queue *tx_queue);
  16 void efx_siena_fini_tx_queue(struct efx_tx_queue *tx_queue);
  17 void efx_siena_remove_tx_queue(struct efx_tx_queue *tx_queue);
  18
  19 static inline bool efx_tx_buffer_in_use(struct efx_tx_buffer *buffer)
  20 {
  21         return buffer->len || (buffer->flags & EFX_TX_BUF_OPTION);
  22 }
  23
  24 void efx_siena_xmit_done_check_empty(struct efx_tx_queue *tx_queue);
  25 void efx_siena_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index);
  26
  27 void efx_siena_enqueue_unwind(struct efx_tx_queue *tx_queue,
  28                               unsigned int insert_count);
  29
  30 struct efx_tx_buffer *efx_siena_tx_map_chunk(struct efx_tx_queue *tx_queue,
  31                                              dma_addr_t dma_addr, size_t len);
  32 int efx_siena_tx_map_data(struct efx_tx_queue *tx_queue, struct sk_buff *skb,
  33                           unsigned int segment_count);
  34
  35 unsigned int efx_siena_tx_max_skb_descs(struct efx_nic *efx);
  36 int efx_siena_tx_tso_fallback(struct efx_tx_queue *tx_queue, struct sk_buff *skb);
  37
  38 extern bool efx_siena_separate_tx_channels;
  39 #endif