tx_common.h 1.7 KB

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  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. #ifndef EFX_TX_COMMON_H
  11. #define EFX_TX_COMMON_H
  12. int efx_probe_tx_queue(struct efx_tx_queue *tx_queue);
  13. void efx_init_tx_queue(struct efx_tx_queue *tx_queue);
  14. void efx_fini_tx_queue(struct efx_tx_queue *tx_queue);
  15. void efx_remove_tx_queue(struct efx_tx_queue *tx_queue);
  16. void efx_dequeue_buffer(struct efx_tx_queue *tx_queue,
  17. struct efx_tx_buffer *buffer,
  18. unsigned int *pkts_compl,
  19. unsigned int *bytes_compl,
  20. unsigned int *efv_pkts_compl);
  21. static inline bool efx_tx_buffer_in_use(struct efx_tx_buffer *buffer)
  22. {
  23. return buffer->len || (buffer->flags & EFX_TX_BUF_OPTION);
  24. }
  25. void efx_xmit_done_check_empty(struct efx_tx_queue *tx_queue);
  26. int efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index);
  27. void efx_enqueue_unwind(struct efx_tx_queue *tx_queue,
  28. unsigned int insert_count);
  29. struct efx_tx_buffer *efx_tx_map_chunk(struct efx_tx_queue *tx_queue,
  30. dma_addr_t dma_addr, size_t len);
  31. int efx_tx_tso_header_length(struct sk_buff *skb);
  32. int efx_tx_map_data(struct efx_tx_queue *tx_queue, struct sk_buff *skb,
  33. unsigned int segment_count);
  34. unsigned int efx_tx_max_skb_descs(struct efx_nic *efx);
  35. int efx_tx_tso_fallback(struct efx_tx_queue *tx_queue, struct sk_buff *skb);
  36. extern bool efx_separate_tx_channels;
  37. #endif