drivers/net/ethernet/microchip/sparx5/sparx5_vcap_impl.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /* Microchip Sparx5 Switch driver VCAP implementation
   3  *
   4  * Copyright (c) 2022 Microchip Technology Inc. and its subsidiaries.
   5  *
   6  * The Sparx5 Chip Register Model can be browsed at this location:
   7  * https://github.com/microchip-ung/sparx-5_reginfo
   8  */
   9
  10 #ifndef __SPARX5_VCAP_IMPL_H__
  11 #define __SPARX5_VCAP_IMPL_H__
  12
  13 #include <linux/types.h>
  14 #include <linux/list.h>
  15
  16 #include "vcap_api.h"
  17 #include "vcap_api_client.h"
  18
  19 #define SPARX5_IS2_LOOKUPS 4
  20 #define SPARX5_IS0_LOOKUPS 6
  21 #define SPARX5_ES0_LOOKUPS 1
  22 #define SPARX5_ES2_LOOKUPS 2
  23
  24 #define SPARX5_VCAP_CID_IS0_L0 VCAP_CID_INGRESS_L0 /* IS0/CLM lookup 0 */
  25 #define SPARX5_VCAP_CID_IS0_L1 VCAP_CID_INGRESS_L1 /* IS0/CLM lookup 1 */
  26 #define SPARX5_VCAP_CID_IS0_L2 VCAP_CID_INGRESS_L2 /* IS0/CLM lookup 2 */
  27 #define SPARX5_VCAP_CID_IS0_L3 VCAP_CID_INGRESS_L3 /* IS0/CLM lookup 3 */
  28 #define SPARX5_VCAP_CID_IS0_L4 VCAP_CID_INGRESS_L4 /* IS0/CLM lookup 4 */
  29 #define SPARX5_VCAP_CID_IS0_L5 VCAP_CID_INGRESS_L5 /* IS0/CLM lookup 5 */
  30 #define SPARX5_VCAP_CID_IS0_MAX \
  31         (VCAP_CID_INGRESS_L5 + VCAP_CID_LOOKUP_SIZE - 1) /* IS0/CLM Max */
  32
  33 #define SPARX5_VCAP_CID_IS2_L0 VCAP_CID_INGRESS_STAGE2_L0 /* IS2 lookup 0 */
  34 #define SPARX5_VCAP_CID_IS2_L1 VCAP_CID_INGRESS_STAGE2_L1 /* IS2 lookup 1 */
  35 #define SPARX5_VCAP_CID_IS2_L2 VCAP_CID_INGRESS_STAGE2_L2 /* IS2 lookup 2 */
  36 #define SPARX5_VCAP_CID_IS2_L3 VCAP_CID_INGRESS_STAGE2_L3 /* IS2 lookup 3 */
  37 #define SPARX5_VCAP_CID_IS2_MAX \
  38         (VCAP_CID_INGRESS_STAGE2_L3 + VCAP_CID_LOOKUP_SIZE - 1) /* IS2 Max */
  39
  40 #define SPARX5_VCAP_CID_ES0_L0 VCAP_CID_EGRESS_L0 /* ES0 lookup 0 */
  41 #define SPARX5_VCAP_CID_ES0_MAX (VCAP_CID_EGRESS_L1 - 1) /* ES0 Max */
  42
  43 #define SPARX5_VCAP_CID_ES2_L0 VCAP_CID_EGRESS_STAGE2_L0 /* ES2 lookup 0 */
  44 #define SPARX5_VCAP_CID_ES2_L1 VCAP_CID_EGRESS_STAGE2_L1 /* ES2 lookup 1 */
  45 #define SPARX5_VCAP_CID_ES2_MAX \
  46         (VCAP_CID_EGRESS_STAGE2_L1 + VCAP_CID_LOOKUP_SIZE - 1) /* ES2 Max */
  47
  48 struct sparx5_vcap_inst {
  49         enum vcap_type vtype; /* type of vcap */
  50         int vinst; /* instance number within the same type */
  51         int lookups; /* number of lookups in this vcap type */
  52         int lookups_per_instance; /* number of lookups in this instance */
  53         int first_cid; /* first chain id in this vcap */
  54         int last_cid; /* last chain id in this vcap */
  55         int count; /* number of available addresses, not in super vcap */
  56         int map_id; /* id in the super vcap block mapping (if applicable) */
  57         int blockno; /* starting block in super vcap (if applicable) */
  58         int blocks; /* number of blocks in super vcap (if applicable) */
  59         bool ingress; /* is vcap in the ingress path */
  60 };
  61
  62 extern const struct sparx5_vcap_inst sparx5_vcap_inst_cfg[];
  63
  64 /* IS0 port keyset selection control */
  65
  66 /* IS0 ethernet, IPv4, IPv6 traffic type keyset generation */
  67 enum vcap_is0_port_sel_etype {
  68         VCAP_IS0_PS_ETYPE_DEFAULT, /* None or follow depending on class */
  69         VCAP_IS0_PS_ETYPE_MLL,
  70         VCAP_IS0_PS_ETYPE_SGL_MLBS,
  71         VCAP_IS0_PS_ETYPE_DBL_MLBS,
  72         VCAP_IS0_PS_ETYPE_TRI_MLBS,
  73         VCAP_IS0_PS_ETYPE_TRI_VID,
  74         VCAP_IS0_PS_ETYPE_LL_FULL,
  75         VCAP_IS0_PS_ETYPE_NORMAL_SRC,
  76         VCAP_IS0_PS_ETYPE_NORMAL_DST,
  77         VCAP_IS0_PS_ETYPE_NORMAL_7TUPLE,
  78         VCAP_IS0_PS_ETYPE_NORMAL_5TUPLE_IP4,
  79         VCAP_IS0_PS_ETYPE_PURE_5TUPLE_IP4,
  80         VCAP_IS0_PS_ETYPE_DBL_VID_IDX,
  81         VCAP_IS0_PS_ETYPE_ETAG,
  82         VCAP_IS0_PS_ETYPE_NO_LOOKUP,
  83 };
  84
  85 /* IS0 MPLS traffic type keyset generation */
  86 enum vcap_is0_port_sel_mpls_uc_mc {
  87         VCAP_IS0_PS_MPLS_FOLLOW_ETYPE,
  88         VCAP_IS0_PS_MPLS_MLL,
  89         VCAP_IS0_PS_MPLS_SGL_MLBS,
  90         VCAP_IS0_PS_MPLS_DBL_MLBS,
  91         VCAP_IS0_PS_MPLS_TRI_MLBS,
  92         VCAP_IS0_PS_MPLS_TRI_VID,
  93         VCAP_IS0_PS_MPLS_LL_FULL,
  94         VCAP_IS0_PS_MPLS_NORMAL_SRC,
  95         VCAP_IS0_PS_MPLS_NORMAL_DST,
  96         VCAP_IS0_PS_MPLS_NORMAL_7TUPLE,
  97         VCAP_IS0_PS_MPLS_NORMAL_5TUPLE_IP4,
  98         VCAP_IS0_PS_MPLS_PURE_5TUPLE_IP4,
  99         VCAP_IS0_PS_MPLS_DBL_VID_IDX,
 100         VCAP_IS0_PS_MPLS_ETAG,
 101         VCAP_IS0_PS_MPLS_NO_LOOKUP,
 102 };
 103
 104 /* IS0 MBLS traffic type keyset generation */
 105 enum vcap_is0_port_sel_mlbs {
 106         VCAP_IS0_PS_MLBS_FOLLOW_ETYPE,
 107         VCAP_IS0_PS_MLBS_SGL_MLBS,
 108         VCAP_IS0_PS_MLBS_DBL_MLBS,
 109         VCAP_IS0_PS_MLBS_TRI_MLBS,
 110         VCAP_IS0_PS_MLBS_NO_LOOKUP = 17,
 111 };
 112
 113 /* IS2 port keyset selection control */
 114
 115 /* IS2 non-ethernet traffic type keyset generation */
 116 enum vcap_is2_port_sel_noneth {
 117         VCAP_IS2_PS_NONETH_MAC_ETYPE,
 118         VCAP_IS2_PS_NONETH_CUSTOM_1,
 119         VCAP_IS2_PS_NONETH_CUSTOM_2,
 120         VCAP_IS2_PS_NONETH_NO_LOOKUP
 121 };
 122
 123 /* IS2 IPv4 unicast traffic type keyset generation */
 124 enum vcap_is2_port_sel_ipv4_uc {
 125         VCAP_IS2_PS_IPV4_UC_MAC_ETYPE,
 126         VCAP_IS2_PS_IPV4_UC_IP4_TCP_UDP_OTHER,
 127         VCAP_IS2_PS_IPV4_UC_IP_7TUPLE,
 128 };
 129
 130 /* IS2 IPv4 multicast traffic type keyset generation */
 131 enum vcap_is2_port_sel_ipv4_mc {
 132         VCAP_IS2_PS_IPV4_MC_MAC_ETYPE,
 133         VCAP_IS2_PS_IPV4_MC_IP4_TCP_UDP_OTHER,
 134         VCAP_IS2_PS_IPV4_MC_IP_7TUPLE,
 135         VCAP_IS2_PS_IPV4_MC_IP4_VID,
 136 };
 137
 138 /* IS2 IPv6 unicast traffic type keyset generation */
 139 enum vcap_is2_port_sel_ipv6_uc {
 140         VCAP_IS2_PS_IPV6_UC_MAC_ETYPE,
 141         VCAP_IS2_PS_IPV6_UC_IP_7TUPLE,
 142         VCAP_IS2_PS_IPV6_UC_IP6_STD,
 143         VCAP_IS2_PS_IPV6_UC_IP4_TCP_UDP_OTHER,
 144 };
 145
 146 /* IS2 IPv6 multicast traffic type keyset generation */
 147 enum vcap_is2_port_sel_ipv6_mc {
 148         VCAP_IS2_PS_IPV6_MC_MAC_ETYPE,
 149         VCAP_IS2_PS_IPV6_MC_IP_7TUPLE,
 150         VCAP_IS2_PS_IPV6_MC_IP6_VID,
 151         VCAP_IS2_PS_IPV6_MC_IP6_STD,
 152         VCAP_IS2_PS_IPV6_MC_IP4_TCP_UDP_OTHER,
 153 };
 154
 155 /* IS2 ARP traffic type keyset generation */
 156 enum vcap_is2_port_sel_arp {
 157         VCAP_IS2_PS_ARP_MAC_ETYPE,
 158         VCAP_IS2_PS_ARP_ARP,
 159 };
 160
 161 /* ES0 port keyset selection control */
 162
 163 /* ES0 Egress port traffic type classification */
 164 enum vcap_es0_port_sel {
 165         VCAP_ES0_PS_NORMAL_SELECTION,
 166         VCAP_ES0_PS_FORCE_ISDX_LOOKUPS,
 167         VCAP_ES0_PS_FORCE_VID_LOOKUPS,
 168         VCAP_ES0_PS_RESERVED,
 169 };
 170
 171 /* ES2 port keyset selection control */
 172
 173 /* ES2 IPv4 traffic type keyset generation */
 174 enum vcap_es2_port_sel_ipv4 {
 175         VCAP_ES2_PS_IPV4_MAC_ETYPE,
 176         VCAP_ES2_PS_IPV4_IP_7TUPLE,
 177         VCAP_ES2_PS_IPV4_IP4_TCP_UDP_VID,
 178         VCAP_ES2_PS_IPV4_IP4_TCP_UDP_OTHER,
 179         VCAP_ES2_PS_IPV4_IP4_VID,
 180         VCAP_ES2_PS_IPV4_IP4_OTHER,
 181 };
 182
 183 /* ES2 IPv6 traffic type keyset generation */
 184 enum vcap_es2_port_sel_ipv6 {
 185         VCAP_ES2_PS_IPV6_MAC_ETYPE,
 186         VCAP_ES2_PS_IPV6_IP_7TUPLE,
 187         VCAP_ES2_PS_IPV6_IP_7TUPLE_VID,
 188         VCAP_ES2_PS_IPV6_IP_7TUPLE_STD,
 189         VCAP_ES2_PS_IPV6_IP6_VID,
 190         VCAP_ES2_PS_IPV6_IP6_STD,
 191         VCAP_ES2_PS_IPV6_IP4_DOWNGRADE,
 192 };
 193
 194 /* ES2 ARP traffic type keyset generation */
 195 enum vcap_es2_port_sel_arp {
 196         VCAP_ES2_PS_ARP_MAC_ETYPE,
 197         VCAP_ES2_PS_ARP_ARP,
 198 };
 199
 200 /* Selects TPID for ES0 matching */
 201 enum SPX5_TPID_SEL {
 202         SPX5_TPID_SEL_UNTAGGED,
 203         SPX5_TPID_SEL_8100,
 204         SPX5_TPID_SEL_UNUSED_0,
 205         SPX5_TPID_SEL_UNUSED_1,
 206         SPX5_TPID_SEL_88A8,
 207         SPX5_TPID_SEL_TPIDCFG_1,
 208         SPX5_TPID_SEL_TPIDCFG_2,
 209         SPX5_TPID_SEL_TPIDCFG_3,
 210 };
 211
 212 /* Get the port keyset for the vcap lookup */
 213 int sparx5_vcap_get_port_keyset(struct net_device *ndev,
 214                                 struct vcap_admin *admin,
 215                                 int cid,
 216                                 u16 l3_proto,
 217                                 struct vcap_keyset_list *kslist);
 218
 219 /* Change the port keyset for the lookup and protocol */
 220 void sparx5_vcap_set_port_keyset(struct net_device *ndev,
 221                                  struct vcap_admin *admin, int cid,
 222                                  u16 l3_proto, enum vcap_keyfield_set keyset,
 223                                  struct vcap_keyset_list *orig);
 224
 225 /* Check if the ethertype is supported by the vcap port classification */
 226 bool sparx5_vcap_is_known_etype(struct vcap_admin *admin, u16 etype);
 227
 228 #endif /* __SPARX5_VCAP_IMPL_H__ */