/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
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/* Microsemi Ocelot Switch driver
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* Copyright (c) 2019 Microsemi Corporation
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*/
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#ifndef _MSCC_OCELOT_VCAP_H_
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#define _MSCC_OCELOT_VCAP_H_
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#include "ocelot.h"
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#include "ocelot_police.h"
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#include <net/sch_generic.h>
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#include <net/pkt_cls.h>
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#define OCELOT_POLICER_DISCARD 0x17f
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struct ocelot_ipv4 {
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u8 addr[4];
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};
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enum ocelot_vcap_bit {
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OCELOT_VCAP_BIT_ANY,
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OCELOT_VCAP_BIT_0,
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OCELOT_VCAP_BIT_1
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};
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struct ocelot_vcap_u8 {
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u8 value[1];
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u8 mask[1];
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};
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struct ocelot_vcap_u16 {
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u8 value[2];
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u8 mask[2];
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};
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struct ocelot_vcap_u24 {
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u8 value[3];
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u8 mask[3];
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};
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struct ocelot_vcap_u32 {
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u8 value[4];
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u8 mask[4];
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};
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struct ocelot_vcap_u40 {
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u8 value[5];
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u8 mask[5];
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};
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struct ocelot_vcap_u48 {
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u8 value[6];
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u8 mask[6];
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};
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struct ocelot_vcap_u64 {
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u8 value[8];
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u8 mask[8];
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};
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struct ocelot_vcap_u128 {
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u8 value[16];
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u8 mask[16];
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};
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struct ocelot_vcap_vid {
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u16 value;
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u16 mask;
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};
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struct ocelot_vcap_ipv4 {
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struct ocelot_ipv4 value;
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struct ocelot_ipv4 mask;
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};
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struct ocelot_vcap_udp_tcp {
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u16 value;
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u16 mask;
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};
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struct ocelot_vcap_port {
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u8 value;
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u8 mask;
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};
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enum ocelot_vcap_key_type {
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OCELOT_VCAP_KEY_ANY,
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OCELOT_VCAP_KEY_ETYPE,
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OCELOT_VCAP_KEY_LLC,
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OCELOT_VCAP_KEY_SNAP,
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OCELOT_VCAP_KEY_ARP,
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OCELOT_VCAP_KEY_IPV4,
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OCELOT_VCAP_KEY_IPV6
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};
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struct ocelot_vcap_key_vlan {
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struct ocelot_vcap_vid vid; /* VLAN ID (12 bit) */
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struct ocelot_vcap_u8 pcp; /* PCP (3 bit) */
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enum ocelot_vcap_bit dei; /* DEI */
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enum ocelot_vcap_bit tagged; /* Tagged/untagged frame */
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};
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struct ocelot_vcap_key_etype {
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struct ocelot_vcap_u48 dmac;
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struct ocelot_vcap_u48 smac;
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struct ocelot_vcap_u16 etype;
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struct ocelot_vcap_u16 data; /* MAC data */
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};
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struct ocelot_vcap_key_llc {
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struct ocelot_vcap_u48 dmac;
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struct ocelot_vcap_u48 smac;
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/* LLC header: DSAP at byte 0, SSAP at byte 1, Control at byte 2 */
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struct ocelot_vcap_u32 llc;
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};
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struct ocelot_vcap_key_snap {
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struct ocelot_vcap_u48 dmac;
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struct ocelot_vcap_u48 smac;
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/* SNAP header: Organization Code at byte 0, Type at byte 3 */
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struct ocelot_vcap_u40 snap;
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};
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struct ocelot_vcap_key_arp {
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struct ocelot_vcap_u48 smac;
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enum ocelot_vcap_bit arp; /* Opcode ARP/RARP */
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enum ocelot_vcap_bit req; /* Opcode request/reply */
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enum ocelot_vcap_bit unknown; /* Opcode unknown */
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enum ocelot_vcap_bit smac_match; /* Sender MAC matches SMAC */
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enum ocelot_vcap_bit dmac_match; /* Target MAC matches DMAC */
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/**< Protocol addr. length 4, hardware length 6 */
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enum ocelot_vcap_bit length;
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enum ocelot_vcap_bit ip; /* Protocol address type IP */
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enum ocelot_vcap_bit ethernet; /* Hardware address type Ethernet */
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struct ocelot_vcap_ipv4 sip; /* Sender IP address */
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struct ocelot_vcap_ipv4 dip; /* Target IP address */
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};
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struct ocelot_vcap_key_ipv4 {
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enum ocelot_vcap_bit ttl; /* TTL zero */
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enum ocelot_vcap_bit fragment; /* Fragment */
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enum ocelot_vcap_bit options; /* Header options */
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struct ocelot_vcap_u8 ds;
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struct ocelot_vcap_u8 proto; /* Protocol */
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struct ocelot_vcap_ipv4 sip; /* Source IP address */
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struct ocelot_vcap_ipv4 dip; /* Destination IP address */
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struct ocelot_vcap_u48 data; /* Not UDP/TCP: IP data */
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struct ocelot_vcap_udp_tcp sport; /* UDP/TCP: Source port */
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struct ocelot_vcap_udp_tcp dport; /* UDP/TCP: Destination port */
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enum ocelot_vcap_bit tcp_fin;
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enum ocelot_vcap_bit tcp_syn;
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enum ocelot_vcap_bit tcp_rst;
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enum ocelot_vcap_bit tcp_psh;
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enum ocelot_vcap_bit tcp_ack;
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enum ocelot_vcap_bit tcp_urg;
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enum ocelot_vcap_bit sip_eq_dip; /* SIP equals DIP */
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enum ocelot_vcap_bit sport_eq_dport; /* SPORT equals DPORT */
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enum ocelot_vcap_bit seq_zero; /* TCP sequence number is zero */
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};
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struct ocelot_vcap_key_ipv6 {
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struct ocelot_vcap_u8 proto; /* IPv6 protocol */
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struct ocelot_vcap_u128 sip; /* IPv6 source (byte 0-7 ignored) */
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struct ocelot_vcap_u128 dip; /* IPv6 destination (byte 0-7 ignored) */
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enum ocelot_vcap_bit ttl; /* TTL zero */
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struct ocelot_vcap_u8 ds;
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struct ocelot_vcap_u48 data; /* Not UDP/TCP: IP data */
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struct ocelot_vcap_udp_tcp sport;
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struct ocelot_vcap_udp_tcp dport;
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enum ocelot_vcap_bit tcp_fin;
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enum ocelot_vcap_bit tcp_syn;
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enum ocelot_vcap_bit tcp_rst;
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enum ocelot_vcap_bit tcp_psh;
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enum ocelot_vcap_bit tcp_ack;
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enum ocelot_vcap_bit tcp_urg;
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enum ocelot_vcap_bit sip_eq_dip; /* SIP equals DIP */
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enum ocelot_vcap_bit sport_eq_dport; /* SPORT equals DPORT */
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enum ocelot_vcap_bit seq_zero; /* TCP sequence number is zero */
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};
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enum ocelot_mask_mode {
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OCELOT_MASK_MODE_NONE,
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OCELOT_MASK_MODE_PERMIT_DENY,
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OCELOT_MASK_MODE_POLICY,
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OCELOT_MASK_MODE_REDIRECT,
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};
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enum ocelot_es0_tag {
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OCELOT_NO_ES0_TAG,
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OCELOT_ES0_TAG,
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OCELOT_FORCE_PORT_TAG,
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OCELOT_FORCE_UNTAG,
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};
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enum ocelot_tag_tpid_sel {
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OCELOT_TAG_TPID_SEL_8021Q,
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OCELOT_TAG_TPID_SEL_8021AD,
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};
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struct ocelot_vcap_action {
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union {
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/* VCAP ES0 */
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struct {
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enum ocelot_es0_tag push_outer_tag;
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enum ocelot_es0_tag push_inner_tag;
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enum ocelot_tag_tpid_sel tag_a_tpid_sel;
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int tag_a_vid_sel;
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int tag_a_pcp_sel;
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u16 vid_a_val;
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u8 pcp_a_val;
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u8 dei_a_val;
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enum ocelot_tag_tpid_sel tag_b_tpid_sel;
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int tag_b_vid_sel;
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int tag_b_pcp_sel;
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u16 vid_b_val;
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u8 pcp_b_val;
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u8 dei_b_val;
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};
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/* VCAP IS1 */
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struct {
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bool vid_replace_ena;
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u16 vid;
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bool vlan_pop_cnt_ena;
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int vlan_pop_cnt;
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bool pcp_dei_ena;
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u8 pcp;
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u8 dei;
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bool qos_ena;
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u8 qos_val;
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u8 pag_override_mask;
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u8 pag_val;
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};
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/* VCAP IS2 */
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struct {
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bool cpu_copy_ena;
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u8 cpu_qu_num;
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enum ocelot_mask_mode mask_mode;
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unsigned long port_mask;
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bool police_ena;
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struct ocelot_policer pol;
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u32 pol_ix;
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};
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};
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};
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struct ocelot_vcap_stats {
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u64 bytes;
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u64 pkts;
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u64 used;
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};
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enum ocelot_vcap_filter_type {
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OCELOT_VCAP_FILTER_DUMMY,
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OCELOT_VCAP_FILTER_PAG,
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OCELOT_VCAP_FILTER_OFFLOAD,
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};
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struct ocelot_vcap_filter {
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struct list_head list;
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enum ocelot_vcap_filter_type type;
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int block_id;
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int goto_target;
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int lookup;
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u8 pag;
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u16 prio;
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u32 id;
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struct ocelot_vcap_action action;
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struct ocelot_vcap_stats stats;
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/* For VCAP IS1 and IS2 */
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unsigned long ingress_port_mask;
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/* For VCAP ES0 */
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struct ocelot_vcap_port ingress_port;
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struct ocelot_vcap_port egress_port;
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enum ocelot_vcap_bit dmac_mc;
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enum ocelot_vcap_bit dmac_bc;
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struct ocelot_vcap_key_vlan vlan;
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enum ocelot_vcap_key_type key_type;
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union {
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/* OCELOT_VCAP_KEY_ANY: No specific fields */
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struct ocelot_vcap_key_etype etype;
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struct ocelot_vcap_key_llc llc;
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struct ocelot_vcap_key_snap snap;
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struct ocelot_vcap_key_arp arp;
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struct ocelot_vcap_key_ipv4 ipv4;
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struct ocelot_vcap_key_ipv6 ipv6;
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} key;
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};
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int ocelot_vcap_filter_add(struct ocelot *ocelot,
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struct ocelot_vcap_filter *rule,
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struct netlink_ext_ack *extack);
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int ocelot_vcap_filter_del(struct ocelot *ocelot,
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struct ocelot_vcap_filter *rule);
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int ocelot_vcap_filter_stats_update(struct ocelot *ocelot,
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struct ocelot_vcap_filter *rule);
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struct ocelot_vcap_filter *
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ocelot_vcap_block_find_filter_by_id(struct ocelot_vcap_block *block, int id);
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void ocelot_detect_vcap_constants(struct ocelot *ocelot);
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int ocelot_vcap_init(struct ocelot *ocelot);
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int ocelot_setup_tc_cls_flower(struct ocelot_port_private *priv,
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struct flow_cls_offload *f,
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bool ingress);
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#endif /* _MSCC_OCELOT_VCAP_H_ */
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