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e9117e5099
Add support for FATSOv2 to the driver. FATSOv2 offloads far more of the task of TCP segmentation to the firmware, such that we now just pass a single super-packet to the NIC. This means TSO has a great deal in common with a normal DMA transmit, apart from adding a couple of option descriptors. NIC-specific checks have been moved off the fast path and in to initialisation where possible. This also moves FATSOv1/SWTSO to a new file (tx_tso.c). The end of transmit and some error handling is now outside TSO, since it is common with other code. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
27 lines
921 B
C
27 lines
921 B
C
/****************************************************************************
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* Driver for Solarflare network controllers and boards
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* Copyright 2005-2006 Fen Systems Ltd.
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* Copyright 2006-2015 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_TX_H
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#define EFX_TX_H
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#include <linux/types.h>
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/* Driver internal tx-path related declarations. */
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unsigned int efx_tx_limit_len(struct efx_tx_queue *tx_queue,
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dma_addr_t dma_addr, unsigned int len);
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u8 *efx_tx_get_copy_buffer_limited(struct efx_tx_queue *tx_queue,
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struct efx_tx_buffer *buffer, size_t len);
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int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue, struct sk_buff *skb,
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bool *data_mapped);
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#endif /* EFX_TX_H */
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