mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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3b4f06c715
We now ignore the "completion" event when using tx queue timestamping, and only pay attention to the two (high and low) timestamp events. The NIC will send a pair of timestamp events for every packet transmitted. The current firmware may merge the completion events, and it is possible that future versions may reorder the completion and timestamp events. As such the completion event is not useful. Without this patch in place a merged completion event on a queue with timestamping will cause a "spurious TX completion" error. This affects SFN8000-series adapters. Signed-off-by: Tom Zhao <tzhao@solarflare.com> Acked-by: Martin Habets <mhabets@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
43 lines
1.5 KiB
C
43 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/****************************************************************************
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* Driver for Solarflare network controllers and boards
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* Copyright 2018 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_COMMON_H
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#define EFX_TX_COMMON_H
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int efx_probe_tx_queue(struct efx_tx_queue *tx_queue);
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void efx_init_tx_queue(struct efx_tx_queue *tx_queue);
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void efx_fini_tx_queue(struct efx_tx_queue *tx_queue);
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void efx_remove_tx_queue(struct efx_tx_queue *tx_queue);
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void efx_dequeue_buffer(struct efx_tx_queue *tx_queue,
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struct efx_tx_buffer *buffer,
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unsigned int *pkts_compl,
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unsigned int *bytes_compl);
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static inline bool efx_tx_buffer_in_use(struct efx_tx_buffer *buffer)
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{
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return buffer->len || (buffer->flags & EFX_TX_BUF_OPTION);
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}
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void efx_xmit_done_check_empty(struct efx_tx_queue *tx_queue);
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void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index);
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void efx_enqueue_unwind(struct efx_tx_queue *tx_queue,
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unsigned int insert_count);
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struct efx_tx_buffer *efx_tx_map_chunk(struct efx_tx_queue *tx_queue,
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dma_addr_t dma_addr, size_t len);
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int efx_tx_map_data(struct efx_tx_queue *tx_queue, struct sk_buff *skb,
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unsigned int segment_count);
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unsigned int efx_tx_max_skb_descs(struct efx_nic *efx);
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#endif
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