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82fd151d38
Previously, even if just one of the many fragments of a 9k packet required a copy, we'd copy the whole packet into a freshly-allocated 9k-sized linear SKB, and this led to performance issues. By having a pool of pages to copy into, each fragment can be independently handled, leading to a reduced incidence of allocation and copy. Signed-off-by: Shailend Chand <shailend@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
29 lines
816 B
C
29 lines
816 B
C
/* SPDX-License-Identifier: (GPL-2.0 OR MIT)
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* Google virtual Ethernet (gve) driver
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*
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* Copyright (C) 2015-2021 Google, Inc.
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*/
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#ifndef _GVE_UTILS_H
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#define _GVE_UTILS_H
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#include <linux/etherdevice.h>
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#include "gve.h"
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void gve_tx_remove_from_block(struct gve_priv *priv, int queue_idx);
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void gve_tx_add_to_block(struct gve_priv *priv, int queue_idx);
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void gve_rx_remove_from_block(struct gve_priv *priv, int queue_idx);
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void gve_rx_add_to_block(struct gve_priv *priv, int queue_idx);
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struct sk_buff *gve_rx_copy(struct net_device *dev, struct napi_struct *napi,
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struct gve_rx_slot_page_info *page_info, u16 len,
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u16 pad);
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/* Decrement pagecnt_bias. Set it back to INT_MAX if it reached zero. */
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void gve_dec_pagecnt_bias(struct gve_rx_slot_page_info *page_info);
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#endif /* _GVE_UTILS_H */
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