linux/drivers/net/ethernet/netronome/nfp/abm/cls.c

// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
/* Copyright (C) 2018 Netronome Systems, Inc. */

#include <linux/bitfield.h>
#include <net/pkt_cls.h>

#include "../nfpcore/nfp_cpp.h"
#include "../nfp_app.h"
#include "../nfp_net_repr.h"
#include "main.h"

struct nfp_abm_u32_match { … };

static bool
nfp_abm_u32_check_knode(struct nfp_abm *abm, struct tc_cls_u32_knode *knode,
			__be16 proto, struct netlink_ext_ack *extack)
{ … }

/* This filter list -> map conversion is O(n * m), we expect single digit or
 * low double digit number of prios and likewise for the filters.  Also u32
 * doesn't report stats, so it's really only setup time cost.
 */
static unsigned int
nfp_abm_find_band_for_prio(struct nfp_abm_link *alink, unsigned int prio)
{ … }

static int nfp_abm_update_band_map(struct nfp_abm_link *alink)
{ … }

static void
nfp_abm_u32_knode_delete(struct nfp_abm_link *alink,
			 struct tc_cls_u32_knode *knode)
{ … }

static int
nfp_abm_u32_knode_replace(struct nfp_abm_link *alink,
			  struct tc_cls_u32_knode *knode,
			  __be16 proto, struct netlink_ext_ack *extack)
{ … }

static int nfp_abm_setup_tc_block_cb(enum tc_setup_type type,
				     void *type_data, void *cb_priv)
{ … }

static LIST_HEAD(nfp_abm_block_cb_list);

int nfp_abm_setup_cls_block(struct net_device *netdev, struct nfp_repr *repr,
			    struct flow_block_offload *f)
{ … }