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1/* SPDX-License-Identifier: GPL-2.0 */2/*3 * RSS and Classifier definitions for Marvell PPv2 Network Controller4 *5 * Copyright (C) 2014 Marvell6 *7 * Marcin Wojtas <mw@semihalf.com>8 */9 10#ifndef _MVPP2_CLS_H_11#define _MVPP2_CLS_H_12 13#include "mvpp2.h"14#include "mvpp2_prs.h"15 16/* Classifier constants */17#define MVPP2_CLS_FLOWS_TBL_SIZE 51218#define MVPP2_CLS_FLOWS_TBL_DATA_WORDS 319#define MVPP2_CLS_LKP_TBL_SIZE 6420#define MVPP2_CLS_RX_QUEUES 25621 22/* Classifier flow constants */23 24#define MVPP2_FLOW_N_FIELDS 425 26enum mvpp2_cls_engine {27 MVPP22_CLS_ENGINE_C2 = 1,28 MVPP22_CLS_ENGINE_C3A,29 MVPP22_CLS_ENGINE_C3B,30 MVPP22_CLS_ENGINE_C4,31 MVPP22_CLS_ENGINE_C3HA = 6,32 MVPP22_CLS_ENGINE_C3HB = 7,33};34 35#define MVPP22_CLS_HEK_OPT_MAC_DA BIT(0)36#define MVPP22_CLS_HEK_OPT_VLAN_PRI BIT(1)37#define MVPP22_CLS_HEK_OPT_VLAN BIT(2)38#define MVPP22_CLS_HEK_OPT_L3_PROTO BIT(3)39#define MVPP22_CLS_HEK_OPT_IP4SA BIT(4)40#define MVPP22_CLS_HEK_OPT_IP4DA BIT(5)41#define MVPP22_CLS_HEK_OPT_IP6SA BIT(6)42#define MVPP22_CLS_HEK_OPT_IP6DA BIT(7)43#define MVPP22_CLS_HEK_OPT_L4SIP BIT(8)44#define MVPP22_CLS_HEK_OPT_L4DIP BIT(9)45#define MVPP22_CLS_HEK_N_FIELDS 1046 47#define MVPP22_CLS_HEK_L4_OPTS (MVPP22_CLS_HEK_OPT_L4SIP | \48 MVPP22_CLS_HEK_OPT_L4DIP)49 50#define MVPP22_CLS_HEK_IP4_2T (MVPP22_CLS_HEK_OPT_IP4SA | \51 MVPP22_CLS_HEK_OPT_IP4DA)52 53#define MVPP22_CLS_HEK_IP6_2T (MVPP22_CLS_HEK_OPT_IP6SA | \54 MVPP22_CLS_HEK_OPT_IP6DA)55 56/* The fifth tuple in "5T" is the L4_Info field */57#define MVPP22_CLS_HEK_IP4_5T (MVPP22_CLS_HEK_IP4_2T | \58 MVPP22_CLS_HEK_L4_OPTS)59 60#define MVPP22_CLS_HEK_IP6_5T (MVPP22_CLS_HEK_IP6_2T | \61 MVPP22_CLS_HEK_L4_OPTS)62 63#define MVPP22_CLS_HEK_TAGGED (MVPP22_CLS_HEK_OPT_VLAN | \64 MVPP22_CLS_HEK_OPT_VLAN_PRI)65 66enum mvpp2_cls_field_id {67 MVPP22_CLS_FIELD_MAC_DA = 0x03,68 MVPP22_CLS_FIELD_VLAN_PRI = 0x05,69 MVPP22_CLS_FIELD_VLAN = 0x06,70 MVPP22_CLS_FIELD_L3_PROTO = 0x0f,71 MVPP22_CLS_FIELD_IP4SA = 0x10,72 MVPP22_CLS_FIELD_IP4DA = 0x11,73 MVPP22_CLS_FIELD_IP6SA = 0x17,74 MVPP22_CLS_FIELD_IP6DA = 0x1a,75 MVPP22_CLS_FIELD_L4SIP = 0x1d,76 MVPP22_CLS_FIELD_L4DIP = 0x1e,77};78 79/* Classifier C2 engine constants */80#define MVPP22_CLS_C2_TCAM_EN(data) ((data) << 16)81 82enum mvpp22_cls_c2_action {83 MVPP22_C2_NO_UPD = 0,84 MVPP22_C2_NO_UPD_LOCK,85 MVPP22_C2_UPD,86 MVPP22_C2_UPD_LOCK,87};88 89enum mvpp22_cls_c2_fwd_action {90 MVPP22_C2_FWD_NO_UPD = 0,91 MVPP22_C2_FWD_NO_UPD_LOCK,92 MVPP22_C2_FWD_SW,93 MVPP22_C2_FWD_SW_LOCK,94 MVPP22_C2_FWD_HW,95 MVPP22_C2_FWD_HW_LOCK,96 MVPP22_C2_FWD_HW_LOW_LAT,97 MVPP22_C2_FWD_HW_LOW_LAT_LOCK,98};99 100enum mvpp22_cls_c2_color_action {101 MVPP22_C2_COL_NO_UPD = 0,102 MVPP22_C2_COL_NO_UPD_LOCK,103 MVPP22_C2_COL_GREEN,104 MVPP22_C2_COL_GREEN_LOCK,105 MVPP22_C2_COL_YELLOW,106 MVPP22_C2_COL_YELLOW_LOCK,107 MVPP22_C2_COL_RED, /* Drop */108 MVPP22_C2_COL_RED_LOCK, /* Drop */109};110 111#define MVPP2_CLS_C2_TCAM_WORDS 5112#define MVPP2_CLS_C2_ATTR_WORDS 5113 114struct mvpp2_cls_c2_entry {115 u32 index;116 /* TCAM lookup key */117 u32 tcam[MVPP2_CLS_C2_TCAM_WORDS];118 /* Actions to perform upon TCAM match */119 u32 act;120 /* Attributes relative to the actions to perform */121 u32 attr[MVPP2_CLS_C2_ATTR_WORDS];122 /* Entry validity */123 u8 valid;124};125 126#define MVPP22_FLOW_ETHER_BIT BIT(0)127#define MVPP22_FLOW_IP4_BIT BIT(1)128#define MVPP22_FLOW_IP6_BIT BIT(2)129#define MVPP22_FLOW_TCP_BIT BIT(3)130#define MVPP22_FLOW_UDP_BIT BIT(4)131 132#define MVPP22_FLOW_TCP4 (MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP4_BIT | MVPP22_FLOW_TCP_BIT)133#define MVPP22_FLOW_TCP6 (MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP6_BIT | MVPP22_FLOW_TCP_BIT)134#define MVPP22_FLOW_UDP4 (MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP4_BIT | MVPP22_FLOW_UDP_BIT)135#define MVPP22_FLOW_UDP6 (MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP6_BIT | MVPP22_FLOW_UDP_BIT)136#define MVPP22_FLOW_IP4 (MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP4_BIT)137#define MVPP22_FLOW_IP6 (MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP6_BIT)138#define MVPP22_FLOW_ETHERNET (MVPP22_FLOW_ETHER_BIT)139 140/* Classifier C2 engine entries */141#define MVPP22_CLS_C2_N_ENTRIES 256142 143/* Number of per-port dedicated entries in the C2 TCAM */144#define MVPP22_CLS_C2_PORT_N_FLOWS MVPP2_N_RFS_ENTRIES_PER_FLOW145 146/* Each port has one range per flow type + one entry controlling the global RSS147 * setting and the default rx queue148 */149#define MVPP22_CLS_C2_PORT_RANGE (MVPP22_CLS_C2_PORT_N_FLOWS + 1)150#define MVPP22_CLS_C2_PORT_FIRST(p) ((p) * MVPP22_CLS_C2_PORT_RANGE)151#define MVPP22_CLS_C2_RSS_ENTRY(p) (MVPP22_CLS_C2_PORT_FIRST((p) + 1) - 1)152 153#define MVPP22_CLS_C2_PORT_FLOW_FIRST(p) (MVPP22_CLS_C2_PORT_FIRST(p))154 155#define MVPP22_CLS_C2_RFS_LOC(p, loc) (MVPP22_CLS_C2_PORT_FLOW_FIRST(p) + (loc))156 157/* Packet flow ID */158enum mvpp2_prs_flow {159 MVPP2_FL_START = 8,160 MVPP2_FL_IP4_TCP_NF_UNTAG = MVPP2_FL_START,161 MVPP2_FL_IP4_UDP_NF_UNTAG,162 MVPP2_FL_IP4_TCP_NF_TAG,163 MVPP2_FL_IP4_UDP_NF_TAG,164 MVPP2_FL_IP6_TCP_NF_UNTAG,165 MVPP2_FL_IP6_UDP_NF_UNTAG,166 MVPP2_FL_IP6_TCP_NF_TAG,167 MVPP2_FL_IP6_UDP_NF_TAG,168 MVPP2_FL_IP4_TCP_FRAG_UNTAG,169 MVPP2_FL_IP4_UDP_FRAG_UNTAG,170 MVPP2_FL_IP4_TCP_FRAG_TAG,171 MVPP2_FL_IP4_UDP_FRAG_TAG,172 MVPP2_FL_IP6_TCP_FRAG_UNTAG,173 MVPP2_FL_IP6_UDP_FRAG_UNTAG,174 MVPP2_FL_IP6_TCP_FRAG_TAG,175 MVPP2_FL_IP6_UDP_FRAG_TAG,176 MVPP2_FL_IP4_UNTAG, /* non-TCP, non-UDP, same for below */177 MVPP2_FL_IP4_TAG,178 MVPP2_FL_IP6_UNTAG,179 MVPP2_FL_IP6_TAG,180 MVPP2_FL_NON_IP_UNTAG,181 MVPP2_FL_NON_IP_TAG,182 MVPP2_FL_LAST,183};184 185/* LU Type defined for all engines, and specified in the flow table */186#define MVPP2_CLS_LU_TYPE_MASK 0x3f187 188enum mvpp2_cls_lu_type {189 /* rule->loc is used as a lu-type for the entries 0 - 62. */190 MVPP22_CLS_LU_TYPE_ALL = 63,191};192 193#define MVPP2_N_FLOWS (MVPP2_FL_LAST - MVPP2_FL_START)194 195struct mvpp2_cls_flow {196 /* The L2-L4 traffic flow type */197 int flow_type;198 199 /* The first id in the flow table for this flow */200 u16 flow_id;201 202 /* The supported HEK fields for this flow */203 u16 supported_hash_opts;204 205 /* The Header Parser result_info that matches this flow */206 struct mvpp2_prs_result_info prs_ri;207};208 209#define MVPP2_CLS_FLT_ENTRIES_PER_FLOW (MVPP2_MAX_PORTS + 1 + 16)210#define MVPP2_CLS_FLT_FIRST(id) (((id) - MVPP2_FL_START) * \211 MVPP2_CLS_FLT_ENTRIES_PER_FLOW)212 213#define MVPP2_CLS_FLT_C2_RFS(port, id, rfs_n) (MVPP2_CLS_FLT_FIRST(id) + \214 ((port) * MVPP2_MAX_PORTS) + \215 (rfs_n))216 217#define MVPP2_CLS_FLT_C2_RSS_ENTRY(id) (MVPP2_CLS_FLT_C2_RFS(MVPP2_MAX_PORTS, id, 0))218#define MVPP2_CLS_FLT_HASH_ENTRY(port, id) (MVPP2_CLS_FLT_C2_RSS_ENTRY(id) + 1 + (port))219#define MVPP2_CLS_FLT_LAST(id) (MVPP2_CLS_FLT_FIRST(id) + \220 MVPP2_CLS_FLT_ENTRIES_PER_FLOW - 1)221 222/* Iterate on each classifier flow id. Sets 'i' to be the index of the first223 * entry in the cls_flows table for each different flow_id.224 * This relies on entries having the same flow_id in the cls_flows table being225 * contiguous.226 */227#define for_each_cls_flow_id(i) \228 for ((i) = 0; (i) < MVPP2_N_PRS_FLOWS; (i)++) \229 if ((i) > 0 && \230 cls_flows[(i)].flow_id == cls_flows[(i) - 1].flow_id) \231 continue; \232 else233 234/* Iterate on each classifier flow that has a given flow_type. Sets 'i' to be235 * the index of the first entry in the cls_flow table for each different flow_id236 * that has the given flow_type. This allows to operate on all flows that237 * matches a given ethtool flow type.238 */239#define for_each_cls_flow_id_with_type(i, type) \240 for_each_cls_flow_id((i)) \241 if (cls_flows[(i)].flow_type != (type)) \242 continue; \243 else244 245#define for_each_cls_flow_id_containing_type(i, type) \246 for_each_cls_flow_id((i)) \247 if ((cls_flows[(i)].flow_type & (type)) != (type)) \248 continue; \249 else250 251struct mvpp2_cls_flow_entry {252 u32 index;253 u32 data[MVPP2_CLS_FLOWS_TBL_DATA_WORDS];254};255 256struct mvpp2_cls_lookup_entry {257 u32 lkpid;258 u32 way;259 u32 data;260};261 262int mvpp22_port_rss_init(struct mvpp2_port *port);263 264int mvpp22_port_rss_enable(struct mvpp2_port *port);265int mvpp22_port_rss_disable(struct mvpp2_port *port);266 267int mvpp22_port_rss_ctx_create(struct mvpp2_port *port, u32 rss_ctx);268int mvpp22_port_rss_ctx_delete(struct mvpp2_port *port, u32 rss_ctx);269 270int mvpp22_port_rss_ctx_indir_set(struct mvpp2_port *port, u32 rss_ctx,271 const u32 *indir);272int mvpp22_port_rss_ctx_indir_get(struct mvpp2_port *port, u32 rss_ctx,273 u32 *indir);274 275int mvpp2_ethtool_rxfh_get(struct mvpp2_port *port, struct ethtool_rxnfc *info);276int mvpp2_ethtool_rxfh_set(struct mvpp2_port *port, struct ethtool_rxnfc *info);277 278void mvpp2_cls_init(struct mvpp2 *priv);279 280void mvpp2_cls_port_config(struct mvpp2_port *port);281 282void mvpp2_cls_oversize_rxq_set(struct mvpp2_port *port);283 284int mvpp2_cls_flow_eng_get(struct mvpp2_cls_flow_entry *fe);285 286u16 mvpp2_flow_get_hek_fields(struct mvpp2_cls_flow_entry *fe);287 288const struct mvpp2_cls_flow *mvpp2_cls_flow_get(int flow);289 290u32 mvpp2_cls_flow_hits(struct mvpp2 *priv, int index);291 292void mvpp2_cls_flow_read(struct mvpp2 *priv, int index,293 struct mvpp2_cls_flow_entry *fe);294 295u32 mvpp2_cls_lookup_hits(struct mvpp2 *priv, int index);296 297void mvpp2_cls_lookup_read(struct mvpp2 *priv, int lkpid, int way,298 struct mvpp2_cls_lookup_entry *le);299 300u32 mvpp2_cls_c2_hit_count(struct mvpp2 *priv, int c2_index);301 302void mvpp2_cls_c2_read(struct mvpp2 *priv, int index,303 struct mvpp2_cls_c2_entry *c2);304 305int mvpp2_ethtool_cls_rule_get(struct mvpp2_port *port,306 struct ethtool_rxnfc *rxnfc);307 308int mvpp2_ethtool_cls_rule_ins(struct mvpp2_port *port,309 struct ethtool_rxnfc *info);310 311int mvpp2_ethtool_cls_rule_del(struct mvpp2_port *port,312 struct ethtool_rxnfc *info);313 314#endif315