linux/drivers/net/ethernet/cisco/enic/enic_clsf.c

// SPDX-License-Identifier: GPL-2.0
#include <linux/if.h>
#include <linux/if_ether.h>
#include <linux/if_link.h>
#include <linux/netdevice.h>
#include <linux/in.h>
#include <linux/types.h>
#include <linux/skbuff.h>
#include <net/flow_dissector.h>
#include "enic_res.h"
#include "enic_clsf.h"

/* enic_addfltr_5t - Add ipv4 5tuple filter
 *	@enic: enic struct of vnic
 *	@keys: flow_keys of ipv4 5tuple
 *	@rq: rq number to steer to
 *
 * This function returns filter_id(hardware_id) of the filter
 * added. In case of error it returns a negative number.
 */
int enic_addfltr_5t(struct enic *enic, struct flow_keys *keys, u16 rq)
{ … }

/* enic_delfltr - Delete clsf filter
 *	@enic: enic struct of vnic
 *	@filter_id: filter_is(hardware_id) of filter to be deleted
 *
 * This function returns zero in case of success, negative number incase of
 * error.
 */
int enic_delfltr(struct enic *enic, u16 filter_id)
{ … }

/* enic_rfs_flw_tbl_init - initialize enic->rfs_h members
 *	@enic: enic data
 */
void enic_rfs_flw_tbl_init(struct enic *enic)
{ … }

void enic_rfs_flw_tbl_free(struct enic *enic)
{ … }

struct enic_rfs_fltr_node *htbl_fltr_search(struct enic *enic, u16 fltr_id)
{ … }

#ifdef CONFIG_RFS_ACCEL
void enic_flow_may_expire(struct timer_list *t)
{ … }

static struct enic_rfs_fltr_node *htbl_key_search(struct hlist_head *h,
						  struct flow_keys *k)
{ … }

int enic_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
		       u16 rxq_index, u32 flow_id)
{ … }

#endif /* CONFIG_RFS_ACCEL */