a7559bc8c1
This patch adds the following features: - Support for XDP_TX and XDP_DROP action when using xdp_buff with frags - Support for freeing all frags attached to an xdp_buff - Cleanup of TX ring buffers after transmits complete - Slight change in definition of bnxt_sw_tx_bd since nr_frags and RX producer may both need to be used - Clear out skb_shared_info at the end of the buffer v2: Fix uninitialized variable warning in bnxt_xdp_buff_frags_free(). Signed-off-by: Andy Gospodarek <gospo@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
38 lines
1.4 KiB
C
38 lines
1.4 KiB
C
/* Broadcom NetXtreme-C/E network driver.
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*
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* Copyright (c) 2016-2017 Broadcom Limited
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation.
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*/
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#ifndef BNXT_XDP_H
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#define BNXT_XDP_H
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DECLARE_STATIC_KEY_FALSE(bnxt_xdp_locking_key);
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struct bnxt_sw_tx_bd *bnxt_xmit_bd(struct bnxt *bp,
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struct bnxt_tx_ring_info *txr,
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dma_addr_t mapping, u32 len,
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struct xdp_buff *xdp);
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void bnxt_tx_int_xdp(struct bnxt *bp, struct bnxt_napi *bnapi, int nr_pkts);
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bool bnxt_rx_xdp(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, u16 cons,
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struct xdp_buff xdp, struct page *page, unsigned int *len,
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u8 *event);
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int bnxt_xdp(struct net_device *dev, struct netdev_bpf *xdp);
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int bnxt_xdp_xmit(struct net_device *dev, int num_frames,
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struct xdp_frame **frames, u32 flags);
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bool bnxt_xdp_attached(struct bnxt *bp, struct bnxt_rx_ring_info *rxr);
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void bnxt_xdp_buff_init(struct bnxt *bp, struct bnxt_rx_ring_info *rxr,
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u16 cons, u8 **data_ptr, unsigned int *len,
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struct xdp_buff *xdp);
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void bnxt_xdp_buff_frags_free(struct bnxt_rx_ring_info *rxr,
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struct xdp_buff *xdp);
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struct sk_buff *bnxt_xdp_build_skb(struct bnxt *bp, struct sk_buff *skb,
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u8 num_frags, struct page_pool *pool,
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struct xdp_buff *xdp,
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struct rx_cmp_ext *rxcmp1);
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#endif
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