/*
* This file is part of the Chelsio T4/T5/T6 Ethernet driver for Linux.
*
* Copyright (c) 2017 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_FLOWER_H
#define __CXGB4_TC_FLOWER_H
#include <net/pkt_cls.h>
struct ch_tc_flower_stats {
u64 prev_packet_count;
u64 packet_count;
u64 byte_count;
u64 last_used;
};
struct ch_tc_flower_entry {
struct ch_filter_specification fs;
struct ch_tc_flower_stats stats;
unsigned long tc_flower_cookie;
struct rhash_head node;
struct rcu_head rcu;
spinlock_t lock; /* lock for stats */
u32 filter_id;
};
enum {
ETH_DMAC_31_0, /* dmac bits 0.. 31 */
ETH_DMAC_47_32, /* dmac bits 32..47 */
ETH_SMAC_15_0, /* smac bits 0.. 15 */
ETH_SMAC_47_16, /* smac bits 16..47 */
IP4_SRC, /* 32-bit IPv4 src */
IP4_DST, /* 32-bit IPv4 dst */
IP6_SRC_31_0, /* src bits 0.. 31 */
IP6_SRC_63_32, /* src bits 63.. 32 */
IP6_SRC_95_64, /* src bits 95.. 64 */
IP6_SRC_127_96, /* src bits 127..96 */
IP6_DST_31_0, /* dst bits 0.. 31 */
IP6_DST_63_32, /* dst bits 63.. 32 */
IP6_DST_95_64, /* dst bits 95.. 64 */
IP6_DST_127_96, /* dst bits 127..96 */
TCP_SPORT, /* 16-bit TCP sport */
TCP_DPORT, /* 16-bit TCP dport */
UDP_SPORT, /* 16-bit UDP sport */
UDP_DPORT, /* 16-bit UDP dport */
};
struct ch_tc_pedit_fields {
u8 field;
u8 size;
u32 offset;
};
#define PEDIT_FIELDS(type, field, size, fs_field, offset) \
{ type## field, size, \
offsetof(struct ch_filter_specification, fs_field) + (offset) }
#define PEDIT_ETH_DMAC_MASK 0xffff
#define PEDIT_TCP_UDP_SPORT_MASK 0xffff
#define PEDIT_ETH_DMAC_31_0 0x0
#define PEDIT_ETH_DMAC_47_32_SMAC_15_0 0x4
#define PEDIT_ETH_SMAC_47_16 0x8
#define PEDIT_IP4_SRC 0xC
#define PEDIT_IP4_DST 0x10
#define PEDIT_IP6_SRC_31_0 0x8
#define PEDIT_IP6_SRC_63_32 0xC
#define PEDIT_IP6_SRC_95_64 0x10
#define PEDIT_IP6_SRC_127_96 0x14
#define PEDIT_IP6_DST_31_0 0x18
#define PEDIT_IP6_DST_63_32 0x1C
#define PEDIT_IP6_DST_95_64 0x20
#define PEDIT_IP6_DST_127_96 0x24
#define PEDIT_TCP_SPORT_DPORT 0x0
#define PEDIT_UDP_SPORT_DPORT 0x0
enum cxgb4_action_natmode_flags {
CXGB4_ACTION_NATMODE_NONE = 0,
CXGB4_ACTION_NATMODE_DIP = (1 << 0),
CXGB4_ACTION_NATMODE_SIP = (1 << 1),
CXGB4_ACTION_NATMODE_DPORT = (1 << 2),
CXGB4_ACTION_NATMODE_SPORT = (1 << 3),
};
/* TC PEDIT action to NATMODE translation entry */
struct cxgb4_natmode_config {
enum chip_type chip;
u8 flags;
u8 natmode;
};
void cxgb4_process_flow_actions(struct net_device *in,
struct flow_action *actions,
struct ch_filter_specification *fs);
int cxgb4_validate_flow_actions(struct net_device *dev,
struct flow_action *actions,
struct netlink_ext_ack *extack,
u8 matchall_filter);
int cxgb4_tc_flower_replace(struct net_device *dev,
struct flow_cls_offload *cls);
int cxgb4_tc_flower_destroy(struct net_device *dev,
struct flow_cls_offload *cls);
int cxgb4_tc_flower_stats(struct net_device *dev,
struct flow_cls_offload *cls);
int cxgb4_flow_rule_replace(struct net_device *dev, struct flow_rule *rule,
u32 tc_prio, struct netlink_ext_ack *extack,
struct ch_filter_specification *fs, u32 *tid);
int cxgb4_flow_rule_destroy(struct net_device *dev, u32 tc_prio,
struct ch_filter_specification *fs, int tid);
int cxgb4_init_tc_flower(struct adapter *adap);
void cxgb4_cleanup_tc_flower(struct adapter *adap);
#endif /* __CXGB4_TC_FLOWER_H */
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