linux/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.h

/* Broadcom NetXtreme-C/E network driver.
 *
 * Copyright (c) 2017 Broadcom Limited
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation.
 */

#ifndef BNXT_TC_H
#define BNXT_TC_H

#ifdef CONFIG_BNXT_FLOWER_OFFLOAD

#include <net/ip_tunnels.h>

/* Structs used for storing the filter/actions of the TC cmd.
 */
struct bnxt_tc_l2_key { … };

struct bnxt_tc_l3_key { … };

struct bnxt_tc_l4_key { … };

struct bnxt_tc_tunnel_key { … };

#define bnxt_eth_addr_key_mask_invalid(eth_addr, eth_addr_mask) …

struct bnxt_tc_actions { … };

struct bnxt_tc_flow { … };

/* Tunnel encap/decap hash table
 * This table is used to maintain a list of flows that use
 * the same tunnel encap/decap params (ip_daddrs, vni, udp_dport)
 * and the FW returned handle.
 * A separate table is maintained for encap and decap
 */
struct bnxt_tc_tunnel_node { … };

/* L2 hash table
 * The same data-struct is used for L2-flow table and L2-tunnel table.
 * The L2 part of a flow or tunnel is stored in a hash table.
 * A flow that shares the same L2 key/mask with an
 * already existing flow/tunnel must refer to it's flow handle or
 * decap_filter_id respectively.
 */
struct bnxt_tc_l2_node { … };

struct bnxt_tc_flow_node { … };

int bnxt_tc_setup_flower(struct bnxt *bp, u16 src_fid,
			 struct flow_cls_offload *cls_flower);
int bnxt_init_tc(struct bnxt *bp);
void bnxt_shutdown_tc(struct bnxt *bp);
void bnxt_tc_flow_stats_work(struct bnxt *bp);

static inline bool bnxt_tc_flower_enabled(struct bnxt *bp)
{ … }

#else /* CONFIG_BNXT_FLOWER_OFFLOAD */

static inline int bnxt_tc_setup_flower(struct bnxt *bp, u16 src_fid,
				       struct flow_cls_offload *cls_flower)
{
	return -EOPNOTSUPP;
}

static inline int bnxt_init_tc(struct bnxt *bp)
{
	return 0;
}

static inline void bnxt_shutdown_tc(struct bnxt *bp)
{
}

static inline void bnxt_tc_flow_stats_work(struct bnxt *bp)
{
}

static inline bool bnxt_tc_flower_enabled(struct bnxt *bp)
{
	return false;
}
#endif /* CONFIG_BNXT_FLOWER_OFFLOAD */
#endif /* BNXT_TC_H */