linux/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_u32_parse.h

/*
 * This file is part of the Chelsio T4 Ethernet driver for Linux.
 *
 * Copyright (c) 2016 Chelsio Communications, Inc. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#ifndef __CXGB4_TC_U32_PARSE_H
#define __CXGB4_TC_U32_PARSE_H

struct cxgb4_match_field { … };

/* IPv4 match fields */
static inline int cxgb4_fill_ipv4_tos(struct ch_filter_specification *f,
				      __be32 val, __be32 mask)
{ … }

static inline int cxgb4_fill_ipv4_frag(struct ch_filter_specification *f,
				       __be32 val, __be32 mask)
{ … }

static inline int cxgb4_fill_ipv4_proto(struct ch_filter_specification *f,
					__be32 val, __be32 mask)
{ … }

static inline int cxgb4_fill_ipv4_src_ip(struct ch_filter_specification *f,
					 __be32 val, __be32 mask)
{ … }

static inline int cxgb4_fill_ipv4_dst_ip(struct ch_filter_specification *f,
					 __be32 val, __be32 mask)
{ … }

static const struct cxgb4_match_field cxgb4_ipv4_fields[] = …;

/* IPv6 match fields */
static inline int cxgb4_fill_ipv6_tos(struct ch_filter_specification *f,
				      __be32 val, __be32 mask)
{ … }

static inline int cxgb4_fill_ipv6_proto(struct ch_filter_specification *f,
					__be32 val, __be32 mask)
{ … }

static inline int cxgb4_fill_ipv6_src_ip0(struct ch_filter_specification *f,
					  __be32 val, __be32 mask)
{ … }

static inline int cxgb4_fill_ipv6_src_ip1(struct ch_filter_specification *f,
					  __be32 val, __be32 mask)
{ … }

static inline int cxgb4_fill_ipv6_src_ip2(struct ch_filter_specification *f,
					  __be32 val, __be32 mask)
{ … }

static inline int cxgb4_fill_ipv6_src_ip3(struct ch_filter_specification *f,
					  __be32 val, __be32 mask)
{ … }

static inline int cxgb4_fill_ipv6_dst_ip0(struct ch_filter_specification *f,
					  __be32 val, __be32 mask)
{ … }

static inline int cxgb4_fill_ipv6_dst_ip1(struct ch_filter_specification *f,
					  __be32 val, __be32 mask)
{ … }

static inline int cxgb4_fill_ipv6_dst_ip2(struct ch_filter_specification *f,
					  __be32 val, __be32 mask)
{ … }

static inline int cxgb4_fill_ipv6_dst_ip3(struct ch_filter_specification *f,
					  __be32 val, __be32 mask)
{ … }

static const struct cxgb4_match_field cxgb4_ipv6_fields[] = …;

/* TCP/UDP match */
static inline int cxgb4_fill_l4_ports(struct ch_filter_specification *f,
				      __be32 val, __be32 mask)
{
	f->val.fport  = ntohl(val)  >> 16;
	f->mask.fport = ntohl(mask) >> 16;
	f->val.lport  = ntohl(val)  & 0x0000FFFF;
	f->mask.lport = ntohl(mask) & 0x0000FFFF;

	return 0;
};

static const struct cxgb4_match_field cxgb4_tcp_fields[] = …;

static const struct cxgb4_match_field cxgb4_udp_fields[] = …;

struct cxgb4_next_header { … };

/* Accept a rule with a jump to transport layer header based on IHL field in
 * IPv4 header.
 */
static const struct cxgb4_next_header cxgb4_ipv4_jumps[] = …;

/* Accept a rule with a jump directly past the 40 Bytes of IPv6 fixed header
 * to get to transport layer header.
 */
static const struct cxgb4_next_header cxgb4_ipv6_jumps[] = …;

struct cxgb4_link { … };

struct cxgb4_tc_u32_table { … };
#endif /* __CXGB4_TC_U32_PARSE_H */