/*
* 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 0 xffff
#define PEDIT_TCP_UDP_SPORT_MASK 0 xffff
#define PEDIT_ETH_DMAC_31_0 0 x0
#define PEDIT_ETH_DMAC_47_32_SMAC_15_0 0 x4
#define PEDIT_ETH_SMAC_47_16 0 x8
#define PEDIT_IP4_SRC 0 xC
#define PEDIT_IP4_DST 0 x10
#define PEDIT_IP6_SRC_31_0 0 x8
#define PEDIT_IP6_SRC_63_32 0 xC
#define PEDIT_IP6_SRC_95_64 0 x10
#define PEDIT_IP6_SRC_127_96 0 x14
#define PEDIT_IP6_DST_31_0 0 x18
#define PEDIT_IP6_DST_63_32 0 x1C
#define PEDIT_IP6_DST_95_64 0 x20
#define PEDIT_IP6_DST_127_96 0 x24
#define PEDIT_TCP_SPORT_DPORT 0 x0
#define PEDIT_UDP_SPORT_DPORT 0 x0
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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(vorverarbeitet am 2026-10-04)
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