/*
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* This file is part of the Chelsio T4/T5/T6 Ethernet driver for Linux.
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*
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* Copyright (c) 2017 Chelsio Communications, Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef __CXGB4_TC_FLOWER_H
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#define __CXGB4_TC_FLOWER_H
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#include <net/pkt_cls.h>
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struct ch_tc_flower_stats {
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u64 prev_packet_count;
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u64 packet_count;
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u64 byte_count;
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u64 last_used;
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};
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struct ch_tc_flower_entry {
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struct ch_filter_specification fs;
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struct ch_tc_flower_stats stats;
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unsigned long tc_flower_cookie;
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struct rhash_head node;
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struct rcu_head rcu;
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spinlock_t lock; /* lock for stats */
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u32 filter_id;
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};
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enum {
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ETH_DMAC_31_0, /* dmac bits 0.. 31 */
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ETH_DMAC_47_32, /* dmac bits 32..47 */
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ETH_SMAC_15_0, /* smac bits 0.. 15 */
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ETH_SMAC_47_16, /* smac bits 16..47 */
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IP4_SRC, /* 32-bit IPv4 src */
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IP4_DST, /* 32-bit IPv4 dst */
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IP6_SRC_31_0, /* src bits 0.. 31 */
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IP6_SRC_63_32, /* src bits 63.. 32 */
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IP6_SRC_95_64, /* src bits 95.. 64 */
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IP6_SRC_127_96, /* src bits 127..96 */
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IP6_DST_31_0, /* dst bits 0.. 31 */
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IP6_DST_63_32, /* dst bits 63.. 32 */
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IP6_DST_95_64, /* dst bits 95.. 64 */
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IP6_DST_127_96, /* dst bits 127..96 */
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TCP_SPORT, /* 16-bit TCP sport */
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TCP_DPORT, /* 16-bit TCP dport */
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UDP_SPORT, /* 16-bit UDP sport */
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UDP_DPORT, /* 16-bit UDP dport */
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};
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struct ch_tc_pedit_fields {
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u8 field;
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u8 size;
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u32 offset;
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};
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#define PEDIT_FIELDS(type, field, size, fs_field, offset) \
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{ type## field, size, \
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offsetof(struct ch_filter_specification, fs_field) + (offset) }
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#define PEDIT_ETH_DMAC_MASK 0xffff
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#define PEDIT_TCP_UDP_SPORT_MASK 0xffff
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#define PEDIT_ETH_DMAC_31_0 0x0
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#define PEDIT_ETH_DMAC_47_32_SMAC_15_0 0x4
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#define PEDIT_ETH_SMAC_47_16 0x8
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#define PEDIT_IP4_SRC 0xC
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#define PEDIT_IP4_DST 0x10
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#define PEDIT_IP6_SRC_31_0 0x8
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#define PEDIT_IP6_SRC_63_32 0xC
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#define PEDIT_IP6_SRC_95_64 0x10
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#define PEDIT_IP6_SRC_127_96 0x14
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#define PEDIT_IP6_DST_31_0 0x18
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#define PEDIT_IP6_DST_63_32 0x1C
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#define PEDIT_IP6_DST_95_64 0x20
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#define PEDIT_IP6_DST_127_96 0x24
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#define PEDIT_TCP_SPORT_DPORT 0x0
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#define PEDIT_UDP_SPORT_DPORT 0x0
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enum cxgb4_action_natmode_flags {
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CXGB4_ACTION_NATMODE_NONE = 0,
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CXGB4_ACTION_NATMODE_DIP = (1 << 0),
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CXGB4_ACTION_NATMODE_SIP = (1 << 1),
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CXGB4_ACTION_NATMODE_DPORT = (1 << 2),
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CXGB4_ACTION_NATMODE_SPORT = (1 << 3),
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};
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/* TC PEDIT action to NATMODE translation entry */
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struct cxgb4_natmode_config {
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enum chip_type chip;
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u8 flags;
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u8 natmode;
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};
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void cxgb4_process_flow_actions(struct net_device *in,
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struct flow_action *actions,
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struct ch_filter_specification *fs);
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int cxgb4_validate_flow_actions(struct net_device *dev,
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struct flow_action *actions,
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struct netlink_ext_ack *extack,
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u8 matchall_filter);
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int cxgb4_tc_flower_replace(struct net_device *dev,
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struct flow_cls_offload *cls);
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int cxgb4_tc_flower_destroy(struct net_device *dev,
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struct flow_cls_offload *cls);
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int cxgb4_tc_flower_stats(struct net_device *dev,
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struct flow_cls_offload *cls);
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int cxgb4_flow_rule_replace(struct net_device *dev, struct flow_rule *rule,
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u32 tc_prio, struct netlink_ext_ack *extack,
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struct ch_filter_specification *fs, u32 *tid);
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int cxgb4_flow_rule_destroy(struct net_device *dev, u32 tc_prio,
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struct ch_filter_specification *fs, int tid);
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int cxgb4_init_tc_flower(struct adapter *adap);
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void cxgb4_cleanup_tc_flower(struct adapter *adap);
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#endif /* __CXGB4_TC_FLOWER_H */
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