Jiri Pirko | e420114 | 2016-02-16 15:14:45 +0100 | [diff] [blame] | 1 | /* |
| 2 | * drivers/net/ethernet/rocker/rocker_ofdpa.c - Rocker switch OF-DPA-like |
| 3 | * implementation |
| 4 | * Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com> |
| 5 | * Copyright (c) 2014-2016 Jiri Pirko <jiri@mellanox.com> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/kernel.h> |
Jiri Pirko | 3fbcdbf | 2016-02-16 15:14:50 +0100 | [diff] [blame] | 14 | #include <linux/types.h> |
| 15 | #include <linux/spinlock.h> |
| 16 | #include <linux/hashtable.h> |
| 17 | #include <linux/crc32.h> |
| 18 | #include <linux/netdevice.h> |
| 19 | #include <linux/inetdevice.h> |
| 20 | #include <linux/if_vlan.h> |
| 21 | #include <linux/if_bridge.h> |
| 22 | #include <net/neighbour.h> |
| 23 | #include <net/switchdev.h> |
| 24 | #include <net/ip_fib.h> |
| 25 | #include <net/arp.h> |
| 26 | |
Jiri Pirko | e420114 | 2016-02-16 15:14:45 +0100 | [diff] [blame] | 27 | #include "rocker.h" |
Jiri Pirko | 3fbcdbf | 2016-02-16 15:14:50 +0100 | [diff] [blame] | 28 | #include "rocker_tlv.h" |
| 29 | |
| 30 | struct ofdpa_flow_tbl_key { |
| 31 | u32 priority; |
| 32 | enum rocker_of_dpa_table_id tbl_id; |
| 33 | union { |
| 34 | struct { |
| 35 | u32 in_pport; |
| 36 | u32 in_pport_mask; |
| 37 | enum rocker_of_dpa_table_id goto_tbl; |
| 38 | } ig_port; |
| 39 | struct { |
| 40 | u32 in_pport; |
| 41 | __be16 vlan_id; |
| 42 | __be16 vlan_id_mask; |
| 43 | enum rocker_of_dpa_table_id goto_tbl; |
| 44 | bool untagged; |
| 45 | __be16 new_vlan_id; |
| 46 | } vlan; |
| 47 | struct { |
| 48 | u32 in_pport; |
| 49 | u32 in_pport_mask; |
| 50 | __be16 eth_type; |
| 51 | u8 eth_dst[ETH_ALEN]; |
| 52 | u8 eth_dst_mask[ETH_ALEN]; |
| 53 | __be16 vlan_id; |
| 54 | __be16 vlan_id_mask; |
| 55 | enum rocker_of_dpa_table_id goto_tbl; |
| 56 | bool copy_to_cpu; |
| 57 | } term_mac; |
| 58 | struct { |
| 59 | __be16 eth_type; |
| 60 | __be32 dst4; |
| 61 | __be32 dst4_mask; |
| 62 | enum rocker_of_dpa_table_id goto_tbl; |
| 63 | u32 group_id; |
| 64 | } ucast_routing; |
| 65 | struct { |
| 66 | u8 eth_dst[ETH_ALEN]; |
| 67 | u8 eth_dst_mask[ETH_ALEN]; |
| 68 | int has_eth_dst; |
| 69 | int has_eth_dst_mask; |
| 70 | __be16 vlan_id; |
| 71 | u32 tunnel_id; |
| 72 | enum rocker_of_dpa_table_id goto_tbl; |
| 73 | u32 group_id; |
| 74 | bool copy_to_cpu; |
| 75 | } bridge; |
| 76 | struct { |
| 77 | u32 in_pport; |
| 78 | u32 in_pport_mask; |
| 79 | u8 eth_src[ETH_ALEN]; |
| 80 | u8 eth_src_mask[ETH_ALEN]; |
| 81 | u8 eth_dst[ETH_ALEN]; |
| 82 | u8 eth_dst_mask[ETH_ALEN]; |
| 83 | __be16 eth_type; |
| 84 | __be16 vlan_id; |
| 85 | __be16 vlan_id_mask; |
| 86 | u8 ip_proto; |
| 87 | u8 ip_proto_mask; |
| 88 | u8 ip_tos; |
| 89 | u8 ip_tos_mask; |
| 90 | u32 group_id; |
| 91 | } acl; |
| 92 | }; |
| 93 | }; |
| 94 | |
| 95 | struct ofdpa_flow_tbl_entry { |
| 96 | struct hlist_node entry; |
| 97 | u32 cmd; |
| 98 | u64 cookie; |
| 99 | struct ofdpa_flow_tbl_key key; |
| 100 | size_t key_len; |
| 101 | u32 key_crc32; /* key */ |
| 102 | }; |
| 103 | |
| 104 | struct ofdpa_group_tbl_entry { |
| 105 | struct hlist_node entry; |
| 106 | u32 cmd; |
| 107 | u32 group_id; /* key */ |
| 108 | u16 group_count; |
| 109 | u32 *group_ids; |
| 110 | union { |
| 111 | struct { |
| 112 | u8 pop_vlan; |
| 113 | } l2_interface; |
| 114 | struct { |
| 115 | u8 eth_src[ETH_ALEN]; |
| 116 | u8 eth_dst[ETH_ALEN]; |
| 117 | __be16 vlan_id; |
| 118 | u32 group_id; |
| 119 | } l2_rewrite; |
| 120 | struct { |
| 121 | u8 eth_src[ETH_ALEN]; |
| 122 | u8 eth_dst[ETH_ALEN]; |
| 123 | __be16 vlan_id; |
| 124 | bool ttl_check; |
| 125 | u32 group_id; |
| 126 | } l3_unicast; |
| 127 | }; |
| 128 | }; |
| 129 | |
| 130 | struct ofdpa_fdb_tbl_entry { |
| 131 | struct hlist_node entry; |
| 132 | u32 key_crc32; /* key */ |
| 133 | bool learned; |
| 134 | unsigned long touched; |
| 135 | struct ofdpa_fdb_tbl_key { |
| 136 | struct ofdpa_port *ofdpa_port; |
| 137 | u8 addr[ETH_ALEN]; |
| 138 | __be16 vlan_id; |
| 139 | } key; |
| 140 | }; |
| 141 | |
| 142 | struct ofdpa_internal_vlan_tbl_entry { |
| 143 | struct hlist_node entry; |
| 144 | int ifindex; /* key */ |
| 145 | u32 ref_count; |
| 146 | __be16 vlan_id; |
| 147 | }; |
| 148 | |
| 149 | struct ofdpa_neigh_tbl_entry { |
| 150 | struct hlist_node entry; |
| 151 | __be32 ip_addr; /* key */ |
| 152 | struct net_device *dev; |
| 153 | u32 ref_count; |
| 154 | u32 index; |
| 155 | u8 eth_dst[ETH_ALEN]; |
| 156 | bool ttl_check; |
| 157 | }; |
| 158 | |
| 159 | enum { |
| 160 | OFDPA_CTRL_LINK_LOCAL_MCAST, |
| 161 | OFDPA_CTRL_LOCAL_ARP, |
| 162 | OFDPA_CTRL_IPV4_MCAST, |
| 163 | OFDPA_CTRL_IPV6_MCAST, |
| 164 | OFDPA_CTRL_DFLT_BRIDGING, |
| 165 | OFDPA_CTRL_DFLT_OVS, |
| 166 | OFDPA_CTRL_MAX, |
| 167 | }; |
| 168 | |
| 169 | #define OFDPA_INTERNAL_VLAN_ID_BASE 0x0f00 |
| 170 | #define OFDPA_N_INTERNAL_VLANS 255 |
| 171 | #define OFDPA_VLAN_BITMAP_LEN BITS_TO_LONGS(VLAN_N_VID) |
| 172 | #define OFDPA_INTERNAL_VLAN_BITMAP_LEN BITS_TO_LONGS(OFDPA_N_INTERNAL_VLANS) |
| 173 | #define OFDPA_UNTAGGED_VID 0 |
Jiri Pirko | e420114 | 2016-02-16 15:14:45 +0100 | [diff] [blame] | 174 | |
| 175 | struct ofdpa { |
Jiri Pirko | 3fbcdbf | 2016-02-16 15:14:50 +0100 | [diff] [blame] | 176 | struct rocker *rocker; |
| 177 | DECLARE_HASHTABLE(flow_tbl, 16); |
| 178 | spinlock_t flow_tbl_lock; /* for flow tbl accesses */ |
| 179 | u64 flow_tbl_next_cookie; |
| 180 | DECLARE_HASHTABLE(group_tbl, 16); |
| 181 | spinlock_t group_tbl_lock; /* for group tbl accesses */ |
| 182 | struct timer_list fdb_cleanup_timer; |
| 183 | DECLARE_HASHTABLE(fdb_tbl, 16); |
| 184 | spinlock_t fdb_tbl_lock; /* for fdb tbl accesses */ |
| 185 | unsigned long internal_vlan_bitmap[OFDPA_INTERNAL_VLAN_BITMAP_LEN]; |
| 186 | DECLARE_HASHTABLE(internal_vlan_tbl, 8); |
| 187 | spinlock_t internal_vlan_tbl_lock; /* for vlan tbl accesses */ |
| 188 | DECLARE_HASHTABLE(neigh_tbl, 16); |
| 189 | spinlock_t neigh_tbl_lock; /* for neigh tbl accesses */ |
| 190 | u32 neigh_tbl_next_index; |
Jiri Pirko | 3a8befc | 2016-03-12 12:03:27 +0100 | [diff] [blame] | 191 | unsigned long ageing_time; |
Jiri Pirko | e420114 | 2016-02-16 15:14:45 +0100 | [diff] [blame] | 192 | }; |
| 193 | |
| 194 | struct ofdpa_port { |
Jiri Pirko | 3fbcdbf | 2016-02-16 15:14:50 +0100 | [diff] [blame] | 195 | struct ofdpa *ofdpa; |
| 196 | struct rocker_port *rocker_port; |
| 197 | struct net_device *dev; |
| 198 | u32 pport; |
| 199 | struct net_device *bridge_dev; |
| 200 | __be16 internal_vlan_id; |
| 201 | int stp_state; |
| 202 | u32 brport_flags; |
| 203 | unsigned long ageing_time; |
| 204 | bool ctrls[OFDPA_CTRL_MAX]; |
| 205 | unsigned long vlan_bitmap[OFDPA_VLAN_BITMAP_LEN]; |
Jiri Pirko | e420114 | 2016-02-16 15:14:45 +0100 | [diff] [blame] | 206 | }; |
| 207 | |
Jiri Pirko | 3fbcdbf | 2016-02-16 15:14:50 +0100 | [diff] [blame] | 208 | static const u8 zero_mac[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; |
| 209 | static const u8 ff_mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; |
| 210 | static const u8 ll_mac[ETH_ALEN] = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 }; |
| 211 | static const u8 ll_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0 }; |
| 212 | static const u8 mcast_mac[ETH_ALEN] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 }; |
| 213 | static const u8 ipv4_mcast[ETH_ALEN] = { 0x01, 0x00, 0x5e, 0x00, 0x00, 0x00 }; |
| 214 | static const u8 ipv4_mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0x80, 0x00, 0x00 }; |
| 215 | static const u8 ipv6_mcast[ETH_ALEN] = { 0x33, 0x33, 0x00, 0x00, 0x00, 0x00 }; |
| 216 | static const u8 ipv6_mask[ETH_ALEN] = { 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }; |
| 217 | |
| 218 | /* Rocker priority levels for flow table entries. Higher |
| 219 | * priority match takes precedence over lower priority match. |
| 220 | */ |
| 221 | |
| 222 | enum { |
| 223 | OFDPA_PRIORITY_UNKNOWN = 0, |
| 224 | OFDPA_PRIORITY_IG_PORT = 1, |
| 225 | OFDPA_PRIORITY_VLAN = 1, |
| 226 | OFDPA_PRIORITY_TERM_MAC_UCAST = 0, |
| 227 | OFDPA_PRIORITY_TERM_MAC_MCAST = 1, |
| 228 | OFDPA_PRIORITY_BRIDGING_VLAN_DFLT_EXACT = 1, |
| 229 | OFDPA_PRIORITY_BRIDGING_VLAN_DFLT_WILD = 2, |
| 230 | OFDPA_PRIORITY_BRIDGING_VLAN = 3, |
| 231 | OFDPA_PRIORITY_BRIDGING_TENANT_DFLT_EXACT = 1, |
| 232 | OFDPA_PRIORITY_BRIDGING_TENANT_DFLT_WILD = 2, |
| 233 | OFDPA_PRIORITY_BRIDGING_TENANT = 3, |
| 234 | OFDPA_PRIORITY_ACL_CTRL = 3, |
| 235 | OFDPA_PRIORITY_ACL_NORMAL = 2, |
| 236 | OFDPA_PRIORITY_ACL_DFLT = 1, |
| 237 | }; |
| 238 | |
| 239 | static bool ofdpa_vlan_id_is_internal(__be16 vlan_id) |
| 240 | { |
| 241 | u16 start = OFDPA_INTERNAL_VLAN_ID_BASE; |
| 242 | u16 end = 0xffe; |
| 243 | u16 _vlan_id = ntohs(vlan_id); |
| 244 | |
| 245 | return (_vlan_id >= start && _vlan_id <= end); |
| 246 | } |
| 247 | |
| 248 | static __be16 ofdpa_port_vid_to_vlan(const struct ofdpa_port *ofdpa_port, |
| 249 | u16 vid, bool *pop_vlan) |
| 250 | { |
| 251 | __be16 vlan_id; |
| 252 | |
| 253 | if (pop_vlan) |
| 254 | *pop_vlan = false; |
| 255 | vlan_id = htons(vid); |
| 256 | if (!vlan_id) { |
| 257 | vlan_id = ofdpa_port->internal_vlan_id; |
| 258 | if (pop_vlan) |
| 259 | *pop_vlan = true; |
| 260 | } |
| 261 | |
| 262 | return vlan_id; |
| 263 | } |
| 264 | |
| 265 | static u16 ofdpa_port_vlan_to_vid(const struct ofdpa_port *ofdpa_port, |
| 266 | __be16 vlan_id) |
| 267 | { |
| 268 | if (ofdpa_vlan_id_is_internal(vlan_id)) |
| 269 | return 0; |
| 270 | |
| 271 | return ntohs(vlan_id); |
| 272 | } |
| 273 | |
| 274 | static bool ofdpa_port_is_slave(const struct ofdpa_port *ofdpa_port, |
| 275 | const char *kind) |
| 276 | { |
| 277 | return ofdpa_port->bridge_dev && |
| 278 | !strcmp(ofdpa_port->bridge_dev->rtnl_link_ops->kind, kind); |
| 279 | } |
| 280 | |
| 281 | static bool ofdpa_port_is_bridged(const struct ofdpa_port *ofdpa_port) |
| 282 | { |
| 283 | return ofdpa_port_is_slave(ofdpa_port, "bridge"); |
| 284 | } |
| 285 | |
| 286 | static bool ofdpa_port_is_ovsed(const struct ofdpa_port *ofdpa_port) |
| 287 | { |
| 288 | return ofdpa_port_is_slave(ofdpa_port, "openvswitch"); |
| 289 | } |
| 290 | |
| 291 | #define OFDPA_OP_FLAG_REMOVE BIT(0) |
| 292 | #define OFDPA_OP_FLAG_NOWAIT BIT(1) |
| 293 | #define OFDPA_OP_FLAG_LEARNED BIT(2) |
| 294 | #define OFDPA_OP_FLAG_REFRESH BIT(3) |
| 295 | |
| 296 | static bool ofdpa_flags_nowait(int flags) |
| 297 | { |
| 298 | return flags & OFDPA_OP_FLAG_NOWAIT; |
| 299 | } |
| 300 | |
| 301 | static void *__ofdpa_mem_alloc(struct switchdev_trans *trans, int flags, |
| 302 | size_t size) |
| 303 | { |
| 304 | struct switchdev_trans_item *elem = NULL; |
| 305 | gfp_t gfp_flags = (flags & OFDPA_OP_FLAG_NOWAIT) ? |
| 306 | GFP_ATOMIC : GFP_KERNEL; |
| 307 | |
| 308 | /* If in transaction prepare phase, allocate the memory |
| 309 | * and enqueue it on a transaction. If in transaction |
| 310 | * commit phase, dequeue the memory from the transaction |
| 311 | * rather than re-allocating the memory. The idea is the |
| 312 | * driver code paths for prepare and commit are identical |
| 313 | * so the memory allocated in the prepare phase is the |
| 314 | * memory used in the commit phase. |
| 315 | */ |
| 316 | |
| 317 | if (!trans) { |
| 318 | elem = kzalloc(size + sizeof(*elem), gfp_flags); |
| 319 | } else if (switchdev_trans_ph_prepare(trans)) { |
| 320 | elem = kzalloc(size + sizeof(*elem), gfp_flags); |
| 321 | if (!elem) |
| 322 | return NULL; |
| 323 | switchdev_trans_item_enqueue(trans, elem, kfree, elem); |
| 324 | } else { |
| 325 | elem = switchdev_trans_item_dequeue(trans); |
| 326 | } |
| 327 | |
| 328 | return elem ? elem + 1 : NULL; |
| 329 | } |
| 330 | |
| 331 | static void *ofdpa_kzalloc(struct switchdev_trans *trans, int flags, |
| 332 | size_t size) |
| 333 | { |
| 334 | return __ofdpa_mem_alloc(trans, flags, size); |
| 335 | } |
| 336 | |
| 337 | static void *ofdpa_kcalloc(struct switchdev_trans *trans, int flags, |
| 338 | size_t n, size_t size) |
| 339 | { |
| 340 | return __ofdpa_mem_alloc(trans, flags, n * size); |
| 341 | } |
| 342 | |
| 343 | static void ofdpa_kfree(struct switchdev_trans *trans, const void *mem) |
| 344 | { |
| 345 | struct switchdev_trans_item *elem; |
| 346 | |
| 347 | /* Frees are ignored if in transaction prepare phase. The |
| 348 | * memory remains on the per-port list until freed in the |
| 349 | * commit phase. |
| 350 | */ |
| 351 | |
| 352 | if (switchdev_trans_ph_prepare(trans)) |
| 353 | return; |
| 354 | |
| 355 | elem = (struct switchdev_trans_item *) mem - 1; |
| 356 | kfree(elem); |
| 357 | } |
| 358 | |
| 359 | /************************************************************* |
| 360 | * Flow, group, FDB, internal VLAN and neigh command prepares |
| 361 | *************************************************************/ |
| 362 | |
| 363 | static int |
| 364 | ofdpa_cmd_flow_tbl_add_ig_port(struct rocker_desc_info *desc_info, |
| 365 | const struct ofdpa_flow_tbl_entry *entry) |
| 366 | { |
| 367 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT, |
| 368 | entry->key.ig_port.in_pport)) |
| 369 | return -EMSGSIZE; |
| 370 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK, |
| 371 | entry->key.ig_port.in_pport_mask)) |
| 372 | return -EMSGSIZE; |
| 373 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, |
| 374 | entry->key.ig_port.goto_tbl)) |
| 375 | return -EMSGSIZE; |
| 376 | |
| 377 | return 0; |
| 378 | } |
| 379 | |
| 380 | static int |
| 381 | ofdpa_cmd_flow_tbl_add_vlan(struct rocker_desc_info *desc_info, |
| 382 | const struct ofdpa_flow_tbl_entry *entry) |
| 383 | { |
| 384 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT, |
| 385 | entry->key.vlan.in_pport)) |
| 386 | return -EMSGSIZE; |
| 387 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
| 388 | entry->key.vlan.vlan_id)) |
| 389 | return -EMSGSIZE; |
| 390 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK, |
| 391 | entry->key.vlan.vlan_id_mask)) |
| 392 | return -EMSGSIZE; |
| 393 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, |
| 394 | entry->key.vlan.goto_tbl)) |
| 395 | return -EMSGSIZE; |
| 396 | if (entry->key.vlan.untagged && |
| 397 | rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_NEW_VLAN_ID, |
| 398 | entry->key.vlan.new_vlan_id)) |
| 399 | return -EMSGSIZE; |
| 400 | |
| 401 | return 0; |
| 402 | } |
| 403 | |
| 404 | static int |
| 405 | ofdpa_cmd_flow_tbl_add_term_mac(struct rocker_desc_info *desc_info, |
| 406 | const struct ofdpa_flow_tbl_entry *entry) |
| 407 | { |
| 408 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT, |
| 409 | entry->key.term_mac.in_pport)) |
| 410 | return -EMSGSIZE; |
| 411 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK, |
| 412 | entry->key.term_mac.in_pport_mask)) |
| 413 | return -EMSGSIZE; |
| 414 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE, |
| 415 | entry->key.term_mac.eth_type)) |
| 416 | return -EMSGSIZE; |
| 417 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, |
| 418 | ETH_ALEN, entry->key.term_mac.eth_dst)) |
| 419 | return -EMSGSIZE; |
| 420 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK, |
| 421 | ETH_ALEN, entry->key.term_mac.eth_dst_mask)) |
| 422 | return -EMSGSIZE; |
| 423 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
| 424 | entry->key.term_mac.vlan_id)) |
| 425 | return -EMSGSIZE; |
| 426 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK, |
| 427 | entry->key.term_mac.vlan_id_mask)) |
| 428 | return -EMSGSIZE; |
| 429 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, |
| 430 | entry->key.term_mac.goto_tbl)) |
| 431 | return -EMSGSIZE; |
| 432 | if (entry->key.term_mac.copy_to_cpu && |
| 433 | rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION, |
| 434 | entry->key.term_mac.copy_to_cpu)) |
| 435 | return -EMSGSIZE; |
| 436 | |
| 437 | return 0; |
| 438 | } |
| 439 | |
| 440 | static int |
| 441 | ofdpa_cmd_flow_tbl_add_ucast_routing(struct rocker_desc_info *desc_info, |
| 442 | const struct ofdpa_flow_tbl_entry *entry) |
| 443 | { |
| 444 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE, |
| 445 | entry->key.ucast_routing.eth_type)) |
| 446 | return -EMSGSIZE; |
| 447 | if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP, |
| 448 | entry->key.ucast_routing.dst4)) |
| 449 | return -EMSGSIZE; |
| 450 | if (rocker_tlv_put_be32(desc_info, ROCKER_TLV_OF_DPA_DST_IP_MASK, |
| 451 | entry->key.ucast_routing.dst4_mask)) |
| 452 | return -EMSGSIZE; |
| 453 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, |
| 454 | entry->key.ucast_routing.goto_tbl)) |
| 455 | return -EMSGSIZE; |
| 456 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, |
| 457 | entry->key.ucast_routing.group_id)) |
| 458 | return -EMSGSIZE; |
| 459 | |
| 460 | return 0; |
| 461 | } |
| 462 | |
| 463 | static int |
| 464 | ofdpa_cmd_flow_tbl_add_bridge(struct rocker_desc_info *desc_info, |
| 465 | const struct ofdpa_flow_tbl_entry *entry) |
| 466 | { |
| 467 | if (entry->key.bridge.has_eth_dst && |
| 468 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, |
| 469 | ETH_ALEN, entry->key.bridge.eth_dst)) |
| 470 | return -EMSGSIZE; |
| 471 | if (entry->key.bridge.has_eth_dst_mask && |
| 472 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK, |
| 473 | ETH_ALEN, entry->key.bridge.eth_dst_mask)) |
| 474 | return -EMSGSIZE; |
| 475 | if (entry->key.bridge.vlan_id && |
| 476 | rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
| 477 | entry->key.bridge.vlan_id)) |
| 478 | return -EMSGSIZE; |
| 479 | if (entry->key.bridge.tunnel_id && |
| 480 | rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_TUNNEL_ID, |
| 481 | entry->key.bridge.tunnel_id)) |
| 482 | return -EMSGSIZE; |
| 483 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GOTO_TABLE_ID, |
| 484 | entry->key.bridge.goto_tbl)) |
| 485 | return -EMSGSIZE; |
| 486 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, |
| 487 | entry->key.bridge.group_id)) |
| 488 | return -EMSGSIZE; |
| 489 | if (entry->key.bridge.copy_to_cpu && |
| 490 | rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_COPY_CPU_ACTION, |
| 491 | entry->key.bridge.copy_to_cpu)) |
| 492 | return -EMSGSIZE; |
| 493 | |
| 494 | return 0; |
| 495 | } |
| 496 | |
| 497 | static int |
| 498 | ofdpa_cmd_flow_tbl_add_acl(struct rocker_desc_info *desc_info, |
| 499 | const struct ofdpa_flow_tbl_entry *entry) |
| 500 | { |
| 501 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT, |
| 502 | entry->key.acl.in_pport)) |
| 503 | return -EMSGSIZE; |
| 504 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_IN_PPORT_MASK, |
| 505 | entry->key.acl.in_pport_mask)) |
| 506 | return -EMSGSIZE; |
| 507 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC, |
| 508 | ETH_ALEN, entry->key.acl.eth_src)) |
| 509 | return -EMSGSIZE; |
| 510 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC_MASK, |
| 511 | ETH_ALEN, entry->key.acl.eth_src_mask)) |
| 512 | return -EMSGSIZE; |
| 513 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, |
| 514 | ETH_ALEN, entry->key.acl.eth_dst)) |
| 515 | return -EMSGSIZE; |
| 516 | if (rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC_MASK, |
| 517 | ETH_ALEN, entry->key.acl.eth_dst_mask)) |
| 518 | return -EMSGSIZE; |
| 519 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_ETHERTYPE, |
| 520 | entry->key.acl.eth_type)) |
| 521 | return -EMSGSIZE; |
| 522 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
| 523 | entry->key.acl.vlan_id)) |
| 524 | return -EMSGSIZE; |
| 525 | if (rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID_MASK, |
| 526 | entry->key.acl.vlan_id_mask)) |
| 527 | return -EMSGSIZE; |
| 528 | |
| 529 | switch (ntohs(entry->key.acl.eth_type)) { |
| 530 | case ETH_P_IP: |
| 531 | case ETH_P_IPV6: |
| 532 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_PROTO, |
| 533 | entry->key.acl.ip_proto)) |
| 534 | return -EMSGSIZE; |
| 535 | if (rocker_tlv_put_u8(desc_info, |
| 536 | ROCKER_TLV_OF_DPA_IP_PROTO_MASK, |
| 537 | entry->key.acl.ip_proto_mask)) |
| 538 | return -EMSGSIZE; |
| 539 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_DSCP, |
| 540 | entry->key.acl.ip_tos & 0x3f)) |
| 541 | return -EMSGSIZE; |
| 542 | if (rocker_tlv_put_u8(desc_info, |
| 543 | ROCKER_TLV_OF_DPA_IP_DSCP_MASK, |
| 544 | entry->key.acl.ip_tos_mask & 0x3f)) |
| 545 | return -EMSGSIZE; |
| 546 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_IP_ECN, |
| 547 | (entry->key.acl.ip_tos & 0xc0) >> 6)) |
| 548 | return -EMSGSIZE; |
| 549 | if (rocker_tlv_put_u8(desc_info, |
| 550 | ROCKER_TLV_OF_DPA_IP_ECN_MASK, |
| 551 | (entry->key.acl.ip_tos_mask & 0xc0) >> 6)) |
| 552 | return -EMSGSIZE; |
| 553 | break; |
| 554 | } |
| 555 | |
| 556 | if (entry->key.acl.group_id != ROCKER_GROUP_NONE && |
| 557 | rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, |
| 558 | entry->key.acl.group_id)) |
| 559 | return -EMSGSIZE; |
| 560 | |
| 561 | return 0; |
| 562 | } |
| 563 | |
| 564 | static int ofdpa_cmd_flow_tbl_add(const struct rocker_port *rocker_port, |
| 565 | struct rocker_desc_info *desc_info, |
| 566 | void *priv) |
| 567 | { |
| 568 | const struct ofdpa_flow_tbl_entry *entry = priv; |
| 569 | struct rocker_tlv *cmd_info; |
| 570 | int err = 0; |
| 571 | |
| 572 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd)) |
| 573 | return -EMSGSIZE; |
| 574 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); |
| 575 | if (!cmd_info) |
| 576 | return -EMSGSIZE; |
| 577 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_TABLE_ID, |
| 578 | entry->key.tbl_id)) |
| 579 | return -EMSGSIZE; |
| 580 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_PRIORITY, |
| 581 | entry->key.priority)) |
| 582 | return -EMSGSIZE; |
| 583 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_HARDTIME, 0)) |
| 584 | return -EMSGSIZE; |
| 585 | if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE, |
| 586 | entry->cookie)) |
| 587 | return -EMSGSIZE; |
| 588 | |
| 589 | switch (entry->key.tbl_id) { |
| 590 | case ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT: |
| 591 | err = ofdpa_cmd_flow_tbl_add_ig_port(desc_info, entry); |
| 592 | break; |
| 593 | case ROCKER_OF_DPA_TABLE_ID_VLAN: |
| 594 | err = ofdpa_cmd_flow_tbl_add_vlan(desc_info, entry); |
| 595 | break; |
| 596 | case ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC: |
| 597 | err = ofdpa_cmd_flow_tbl_add_term_mac(desc_info, entry); |
| 598 | break; |
| 599 | case ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING: |
| 600 | err = ofdpa_cmd_flow_tbl_add_ucast_routing(desc_info, entry); |
| 601 | break; |
| 602 | case ROCKER_OF_DPA_TABLE_ID_BRIDGING: |
| 603 | err = ofdpa_cmd_flow_tbl_add_bridge(desc_info, entry); |
| 604 | break; |
| 605 | case ROCKER_OF_DPA_TABLE_ID_ACL_POLICY: |
| 606 | err = ofdpa_cmd_flow_tbl_add_acl(desc_info, entry); |
| 607 | break; |
| 608 | default: |
| 609 | err = -ENOTSUPP; |
| 610 | break; |
| 611 | } |
| 612 | |
| 613 | if (err) |
| 614 | return err; |
| 615 | |
| 616 | rocker_tlv_nest_end(desc_info, cmd_info); |
| 617 | |
| 618 | return 0; |
| 619 | } |
| 620 | |
| 621 | static int ofdpa_cmd_flow_tbl_del(const struct rocker_port *rocker_port, |
| 622 | struct rocker_desc_info *desc_info, |
| 623 | void *priv) |
| 624 | { |
| 625 | const struct ofdpa_flow_tbl_entry *entry = priv; |
| 626 | struct rocker_tlv *cmd_info; |
| 627 | |
| 628 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd)) |
| 629 | return -EMSGSIZE; |
| 630 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); |
| 631 | if (!cmd_info) |
| 632 | return -EMSGSIZE; |
| 633 | if (rocker_tlv_put_u64(desc_info, ROCKER_TLV_OF_DPA_COOKIE, |
| 634 | entry->cookie)) |
| 635 | return -EMSGSIZE; |
| 636 | rocker_tlv_nest_end(desc_info, cmd_info); |
| 637 | |
| 638 | return 0; |
| 639 | } |
| 640 | |
| 641 | static int |
| 642 | ofdpa_cmd_group_tbl_add_l2_interface(struct rocker_desc_info *desc_info, |
| 643 | struct ofdpa_group_tbl_entry *entry) |
| 644 | { |
| 645 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_OUT_PPORT, |
| 646 | ROCKER_GROUP_PORT_GET(entry->group_id))) |
| 647 | return -EMSGSIZE; |
| 648 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_POP_VLAN, |
| 649 | entry->l2_interface.pop_vlan)) |
| 650 | return -EMSGSIZE; |
| 651 | |
| 652 | return 0; |
| 653 | } |
| 654 | |
| 655 | static int |
| 656 | ofdpa_cmd_group_tbl_add_l2_rewrite(struct rocker_desc_info *desc_info, |
| 657 | const struct ofdpa_group_tbl_entry *entry) |
| 658 | { |
| 659 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER, |
| 660 | entry->l2_rewrite.group_id)) |
| 661 | return -EMSGSIZE; |
| 662 | if (!is_zero_ether_addr(entry->l2_rewrite.eth_src) && |
| 663 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC, |
| 664 | ETH_ALEN, entry->l2_rewrite.eth_src)) |
| 665 | return -EMSGSIZE; |
| 666 | if (!is_zero_ether_addr(entry->l2_rewrite.eth_dst) && |
| 667 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, |
| 668 | ETH_ALEN, entry->l2_rewrite.eth_dst)) |
| 669 | return -EMSGSIZE; |
| 670 | if (entry->l2_rewrite.vlan_id && |
| 671 | rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
| 672 | entry->l2_rewrite.vlan_id)) |
| 673 | return -EMSGSIZE; |
| 674 | |
| 675 | return 0; |
| 676 | } |
| 677 | |
| 678 | static int |
| 679 | ofdpa_cmd_group_tbl_add_group_ids(struct rocker_desc_info *desc_info, |
| 680 | const struct ofdpa_group_tbl_entry *entry) |
| 681 | { |
| 682 | int i; |
| 683 | struct rocker_tlv *group_ids; |
| 684 | |
| 685 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_OF_DPA_GROUP_COUNT, |
| 686 | entry->group_count)) |
| 687 | return -EMSGSIZE; |
| 688 | |
| 689 | group_ids = rocker_tlv_nest_start(desc_info, |
| 690 | ROCKER_TLV_OF_DPA_GROUP_IDS); |
| 691 | if (!group_ids) |
| 692 | return -EMSGSIZE; |
| 693 | |
| 694 | for (i = 0; i < entry->group_count; i++) |
| 695 | /* Note TLV array is 1-based */ |
| 696 | if (rocker_tlv_put_u32(desc_info, i + 1, entry->group_ids[i])) |
| 697 | return -EMSGSIZE; |
| 698 | |
| 699 | rocker_tlv_nest_end(desc_info, group_ids); |
| 700 | |
| 701 | return 0; |
| 702 | } |
| 703 | |
| 704 | static int |
| 705 | ofdpa_cmd_group_tbl_add_l3_unicast(struct rocker_desc_info *desc_info, |
| 706 | const struct ofdpa_group_tbl_entry *entry) |
| 707 | { |
| 708 | if (!is_zero_ether_addr(entry->l3_unicast.eth_src) && |
| 709 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_SRC_MAC, |
| 710 | ETH_ALEN, entry->l3_unicast.eth_src)) |
| 711 | return -EMSGSIZE; |
| 712 | if (!is_zero_ether_addr(entry->l3_unicast.eth_dst) && |
| 713 | rocker_tlv_put(desc_info, ROCKER_TLV_OF_DPA_DST_MAC, |
| 714 | ETH_ALEN, entry->l3_unicast.eth_dst)) |
| 715 | return -EMSGSIZE; |
| 716 | if (entry->l3_unicast.vlan_id && |
| 717 | rocker_tlv_put_be16(desc_info, ROCKER_TLV_OF_DPA_VLAN_ID, |
| 718 | entry->l3_unicast.vlan_id)) |
| 719 | return -EMSGSIZE; |
| 720 | if (rocker_tlv_put_u8(desc_info, ROCKER_TLV_OF_DPA_TTL_CHECK, |
| 721 | entry->l3_unicast.ttl_check)) |
| 722 | return -EMSGSIZE; |
| 723 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID_LOWER, |
| 724 | entry->l3_unicast.group_id)) |
| 725 | return -EMSGSIZE; |
| 726 | |
| 727 | return 0; |
| 728 | } |
| 729 | |
| 730 | static int ofdpa_cmd_group_tbl_add(const struct rocker_port *rocker_port, |
| 731 | struct rocker_desc_info *desc_info, |
| 732 | void *priv) |
| 733 | { |
| 734 | struct ofdpa_group_tbl_entry *entry = priv; |
| 735 | struct rocker_tlv *cmd_info; |
| 736 | int err = 0; |
| 737 | |
| 738 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd)) |
| 739 | return -EMSGSIZE; |
| 740 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); |
| 741 | if (!cmd_info) |
| 742 | return -EMSGSIZE; |
| 743 | |
| 744 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, |
| 745 | entry->group_id)) |
| 746 | return -EMSGSIZE; |
| 747 | |
| 748 | switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) { |
| 749 | case ROCKER_OF_DPA_GROUP_TYPE_L2_INTERFACE: |
| 750 | err = ofdpa_cmd_group_tbl_add_l2_interface(desc_info, entry); |
| 751 | break; |
| 752 | case ROCKER_OF_DPA_GROUP_TYPE_L2_REWRITE: |
| 753 | err = ofdpa_cmd_group_tbl_add_l2_rewrite(desc_info, entry); |
| 754 | break; |
| 755 | case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD: |
| 756 | case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST: |
| 757 | err = ofdpa_cmd_group_tbl_add_group_ids(desc_info, entry); |
| 758 | break; |
| 759 | case ROCKER_OF_DPA_GROUP_TYPE_L3_UCAST: |
| 760 | err = ofdpa_cmd_group_tbl_add_l3_unicast(desc_info, entry); |
| 761 | break; |
| 762 | default: |
| 763 | err = -ENOTSUPP; |
| 764 | break; |
| 765 | } |
| 766 | |
| 767 | if (err) |
| 768 | return err; |
| 769 | |
| 770 | rocker_tlv_nest_end(desc_info, cmd_info); |
| 771 | |
| 772 | return 0; |
| 773 | } |
| 774 | |
| 775 | static int ofdpa_cmd_group_tbl_del(const struct rocker_port *rocker_port, |
| 776 | struct rocker_desc_info *desc_info, |
| 777 | void *priv) |
| 778 | { |
| 779 | const struct ofdpa_group_tbl_entry *entry = priv; |
| 780 | struct rocker_tlv *cmd_info; |
| 781 | |
| 782 | if (rocker_tlv_put_u16(desc_info, ROCKER_TLV_CMD_TYPE, entry->cmd)) |
| 783 | return -EMSGSIZE; |
| 784 | cmd_info = rocker_tlv_nest_start(desc_info, ROCKER_TLV_CMD_INFO); |
| 785 | if (!cmd_info) |
| 786 | return -EMSGSIZE; |
| 787 | if (rocker_tlv_put_u32(desc_info, ROCKER_TLV_OF_DPA_GROUP_ID, |
| 788 | entry->group_id)) |
| 789 | return -EMSGSIZE; |
| 790 | rocker_tlv_nest_end(desc_info, cmd_info); |
| 791 | |
| 792 | return 0; |
| 793 | } |
| 794 | |
| 795 | /*************************************************** |
| 796 | * Flow, group, FDB, internal VLAN and neigh tables |
| 797 | ***************************************************/ |
| 798 | |
| 799 | static struct ofdpa_flow_tbl_entry * |
| 800 | ofdpa_flow_tbl_find(const struct ofdpa *ofdpa, |
| 801 | const struct ofdpa_flow_tbl_entry *match) |
| 802 | { |
| 803 | struct ofdpa_flow_tbl_entry *found; |
| 804 | size_t key_len = match->key_len ? match->key_len : sizeof(found->key); |
| 805 | |
| 806 | hash_for_each_possible(ofdpa->flow_tbl, found, |
| 807 | entry, match->key_crc32) { |
| 808 | if (memcmp(&found->key, &match->key, key_len) == 0) |
| 809 | return found; |
| 810 | } |
| 811 | |
| 812 | return NULL; |
| 813 | } |
| 814 | |
| 815 | static int ofdpa_flow_tbl_add(struct ofdpa_port *ofdpa_port, |
| 816 | struct switchdev_trans *trans, int flags, |
| 817 | struct ofdpa_flow_tbl_entry *match) |
| 818 | { |
| 819 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; |
| 820 | struct ofdpa_flow_tbl_entry *found; |
| 821 | size_t key_len = match->key_len ? match->key_len : sizeof(found->key); |
| 822 | unsigned long lock_flags; |
| 823 | |
| 824 | match->key_crc32 = crc32(~0, &match->key, key_len); |
| 825 | |
| 826 | spin_lock_irqsave(&ofdpa->flow_tbl_lock, lock_flags); |
| 827 | |
| 828 | found = ofdpa_flow_tbl_find(ofdpa, match); |
| 829 | |
| 830 | if (found) { |
| 831 | match->cookie = found->cookie; |
| 832 | if (!switchdev_trans_ph_prepare(trans)) |
| 833 | hash_del(&found->entry); |
| 834 | ofdpa_kfree(trans, found); |
| 835 | found = match; |
| 836 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_MOD; |
| 837 | } else { |
| 838 | found = match; |
| 839 | found->cookie = ofdpa->flow_tbl_next_cookie++; |
| 840 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_ADD; |
| 841 | } |
| 842 | |
| 843 | if (!switchdev_trans_ph_prepare(trans)) |
| 844 | hash_add(ofdpa->flow_tbl, &found->entry, found->key_crc32); |
| 845 | |
| 846 | spin_unlock_irqrestore(&ofdpa->flow_tbl_lock, lock_flags); |
| 847 | |
| 848 | if (!switchdev_trans_ph_prepare(trans)) |
| 849 | return rocker_cmd_exec(ofdpa_port->rocker_port, |
| 850 | ofdpa_flags_nowait(flags), |
| 851 | ofdpa_cmd_flow_tbl_add, |
| 852 | found, NULL, NULL); |
| 853 | return 0; |
| 854 | } |
| 855 | |
| 856 | static int ofdpa_flow_tbl_del(struct ofdpa_port *ofdpa_port, |
| 857 | struct switchdev_trans *trans, int flags, |
| 858 | struct ofdpa_flow_tbl_entry *match) |
| 859 | { |
| 860 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; |
| 861 | struct ofdpa_flow_tbl_entry *found; |
| 862 | size_t key_len = match->key_len ? match->key_len : sizeof(found->key); |
| 863 | unsigned long lock_flags; |
| 864 | int err = 0; |
| 865 | |
| 866 | match->key_crc32 = crc32(~0, &match->key, key_len); |
| 867 | |
| 868 | spin_lock_irqsave(&ofdpa->flow_tbl_lock, lock_flags); |
| 869 | |
| 870 | found = ofdpa_flow_tbl_find(ofdpa, match); |
| 871 | |
| 872 | if (found) { |
| 873 | if (!switchdev_trans_ph_prepare(trans)) |
| 874 | hash_del(&found->entry); |
| 875 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_FLOW_DEL; |
| 876 | } |
| 877 | |
| 878 | spin_unlock_irqrestore(&ofdpa->flow_tbl_lock, lock_flags); |
| 879 | |
| 880 | ofdpa_kfree(trans, match); |
| 881 | |
| 882 | if (found) { |
| 883 | if (!switchdev_trans_ph_prepare(trans)) |
| 884 | err = rocker_cmd_exec(ofdpa_port->rocker_port, |
| 885 | ofdpa_flags_nowait(flags), |
| 886 | ofdpa_cmd_flow_tbl_del, |
| 887 | found, NULL, NULL); |
| 888 | ofdpa_kfree(trans, found); |
| 889 | } |
| 890 | |
| 891 | return err; |
| 892 | } |
| 893 | |
| 894 | static int ofdpa_flow_tbl_do(struct ofdpa_port *ofdpa_port, |
| 895 | struct switchdev_trans *trans, int flags, |
| 896 | struct ofdpa_flow_tbl_entry *entry) |
| 897 | { |
| 898 | if (flags & OFDPA_OP_FLAG_REMOVE) |
| 899 | return ofdpa_flow_tbl_del(ofdpa_port, trans, flags, entry); |
| 900 | else |
| 901 | return ofdpa_flow_tbl_add(ofdpa_port, trans, flags, entry); |
| 902 | } |
| 903 | |
| 904 | static int ofdpa_flow_tbl_ig_port(struct ofdpa_port *ofdpa_port, |
| 905 | struct switchdev_trans *trans, int flags, |
| 906 | u32 in_pport, u32 in_pport_mask, |
| 907 | enum rocker_of_dpa_table_id goto_tbl) |
| 908 | { |
| 909 | struct ofdpa_flow_tbl_entry *entry; |
| 910 | |
| 911 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); |
| 912 | if (!entry) |
| 913 | return -ENOMEM; |
| 914 | |
| 915 | entry->key.priority = OFDPA_PRIORITY_IG_PORT; |
| 916 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_INGRESS_PORT; |
| 917 | entry->key.ig_port.in_pport = in_pport; |
| 918 | entry->key.ig_port.in_pport_mask = in_pport_mask; |
| 919 | entry->key.ig_port.goto_tbl = goto_tbl; |
| 920 | |
| 921 | return ofdpa_flow_tbl_do(ofdpa_port, trans, flags, entry); |
| 922 | } |
| 923 | |
| 924 | static int ofdpa_flow_tbl_vlan(struct ofdpa_port *ofdpa_port, |
| 925 | struct switchdev_trans *trans, int flags, |
| 926 | u32 in_pport, __be16 vlan_id, |
| 927 | __be16 vlan_id_mask, |
| 928 | enum rocker_of_dpa_table_id goto_tbl, |
| 929 | bool untagged, __be16 new_vlan_id) |
| 930 | { |
| 931 | struct ofdpa_flow_tbl_entry *entry; |
| 932 | |
| 933 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); |
| 934 | if (!entry) |
| 935 | return -ENOMEM; |
| 936 | |
| 937 | entry->key.priority = OFDPA_PRIORITY_VLAN; |
| 938 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_VLAN; |
| 939 | entry->key.vlan.in_pport = in_pport; |
| 940 | entry->key.vlan.vlan_id = vlan_id; |
| 941 | entry->key.vlan.vlan_id_mask = vlan_id_mask; |
| 942 | entry->key.vlan.goto_tbl = goto_tbl; |
| 943 | |
| 944 | entry->key.vlan.untagged = untagged; |
| 945 | entry->key.vlan.new_vlan_id = new_vlan_id; |
| 946 | |
| 947 | return ofdpa_flow_tbl_do(ofdpa_port, trans, flags, entry); |
| 948 | } |
| 949 | |
| 950 | static int ofdpa_flow_tbl_term_mac(struct ofdpa_port *ofdpa_port, |
| 951 | struct switchdev_trans *trans, |
| 952 | u32 in_pport, u32 in_pport_mask, |
| 953 | __be16 eth_type, const u8 *eth_dst, |
| 954 | const u8 *eth_dst_mask, __be16 vlan_id, |
| 955 | __be16 vlan_id_mask, bool copy_to_cpu, |
| 956 | int flags) |
| 957 | { |
| 958 | struct ofdpa_flow_tbl_entry *entry; |
| 959 | |
| 960 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); |
| 961 | if (!entry) |
| 962 | return -ENOMEM; |
| 963 | |
| 964 | if (is_multicast_ether_addr(eth_dst)) { |
| 965 | entry->key.priority = OFDPA_PRIORITY_TERM_MAC_MCAST; |
| 966 | entry->key.term_mac.goto_tbl = |
| 967 | ROCKER_OF_DPA_TABLE_ID_MULTICAST_ROUTING; |
| 968 | } else { |
| 969 | entry->key.priority = OFDPA_PRIORITY_TERM_MAC_UCAST; |
| 970 | entry->key.term_mac.goto_tbl = |
| 971 | ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING; |
| 972 | } |
| 973 | |
| 974 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC; |
| 975 | entry->key.term_mac.in_pport = in_pport; |
| 976 | entry->key.term_mac.in_pport_mask = in_pport_mask; |
| 977 | entry->key.term_mac.eth_type = eth_type; |
| 978 | ether_addr_copy(entry->key.term_mac.eth_dst, eth_dst); |
| 979 | ether_addr_copy(entry->key.term_mac.eth_dst_mask, eth_dst_mask); |
| 980 | entry->key.term_mac.vlan_id = vlan_id; |
| 981 | entry->key.term_mac.vlan_id_mask = vlan_id_mask; |
| 982 | entry->key.term_mac.copy_to_cpu = copy_to_cpu; |
| 983 | |
| 984 | return ofdpa_flow_tbl_do(ofdpa_port, trans, flags, entry); |
| 985 | } |
| 986 | |
| 987 | static int ofdpa_flow_tbl_bridge(struct ofdpa_port *ofdpa_port, |
| 988 | struct switchdev_trans *trans, int flags, |
| 989 | const u8 *eth_dst, const u8 *eth_dst_mask, |
| 990 | __be16 vlan_id, u32 tunnel_id, |
| 991 | enum rocker_of_dpa_table_id goto_tbl, |
| 992 | u32 group_id, bool copy_to_cpu) |
| 993 | { |
| 994 | struct ofdpa_flow_tbl_entry *entry; |
| 995 | u32 priority; |
| 996 | bool vlan_bridging = !!vlan_id; |
| 997 | bool dflt = !eth_dst || (eth_dst && eth_dst_mask); |
| 998 | bool wild = false; |
| 999 | |
| 1000 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); |
| 1001 | if (!entry) |
| 1002 | return -ENOMEM; |
| 1003 | |
| 1004 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_BRIDGING; |
| 1005 | |
| 1006 | if (eth_dst) { |
| 1007 | entry->key.bridge.has_eth_dst = 1; |
| 1008 | ether_addr_copy(entry->key.bridge.eth_dst, eth_dst); |
| 1009 | } |
| 1010 | if (eth_dst_mask) { |
| 1011 | entry->key.bridge.has_eth_dst_mask = 1; |
| 1012 | ether_addr_copy(entry->key.bridge.eth_dst_mask, eth_dst_mask); |
| 1013 | if (!ether_addr_equal(eth_dst_mask, ff_mac)) |
| 1014 | wild = true; |
| 1015 | } |
| 1016 | |
| 1017 | priority = OFDPA_PRIORITY_UNKNOWN; |
| 1018 | if (vlan_bridging && dflt && wild) |
| 1019 | priority = OFDPA_PRIORITY_BRIDGING_VLAN_DFLT_WILD; |
| 1020 | else if (vlan_bridging && dflt && !wild) |
| 1021 | priority = OFDPA_PRIORITY_BRIDGING_VLAN_DFLT_EXACT; |
| 1022 | else if (vlan_bridging && !dflt) |
| 1023 | priority = OFDPA_PRIORITY_BRIDGING_VLAN; |
| 1024 | else if (!vlan_bridging && dflt && wild) |
| 1025 | priority = OFDPA_PRIORITY_BRIDGING_TENANT_DFLT_WILD; |
| 1026 | else if (!vlan_bridging && dflt && !wild) |
| 1027 | priority = OFDPA_PRIORITY_BRIDGING_TENANT_DFLT_EXACT; |
| 1028 | else if (!vlan_bridging && !dflt) |
| 1029 | priority = OFDPA_PRIORITY_BRIDGING_TENANT; |
| 1030 | |
| 1031 | entry->key.priority = priority; |
| 1032 | entry->key.bridge.vlan_id = vlan_id; |
| 1033 | entry->key.bridge.tunnel_id = tunnel_id; |
| 1034 | entry->key.bridge.goto_tbl = goto_tbl; |
| 1035 | entry->key.bridge.group_id = group_id; |
| 1036 | entry->key.bridge.copy_to_cpu = copy_to_cpu; |
| 1037 | |
| 1038 | return ofdpa_flow_tbl_do(ofdpa_port, trans, flags, entry); |
| 1039 | } |
| 1040 | |
| 1041 | static int ofdpa_flow_tbl_ucast4_routing(struct ofdpa_port *ofdpa_port, |
| 1042 | struct switchdev_trans *trans, |
| 1043 | __be16 eth_type, __be32 dst, |
| 1044 | __be32 dst_mask, u32 priority, |
| 1045 | enum rocker_of_dpa_table_id goto_tbl, |
| 1046 | u32 group_id, int flags) |
| 1047 | { |
| 1048 | struct ofdpa_flow_tbl_entry *entry; |
| 1049 | |
| 1050 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); |
| 1051 | if (!entry) |
| 1052 | return -ENOMEM; |
| 1053 | |
| 1054 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_UNICAST_ROUTING; |
| 1055 | entry->key.priority = priority; |
| 1056 | entry->key.ucast_routing.eth_type = eth_type; |
| 1057 | entry->key.ucast_routing.dst4 = dst; |
| 1058 | entry->key.ucast_routing.dst4_mask = dst_mask; |
| 1059 | entry->key.ucast_routing.goto_tbl = goto_tbl; |
| 1060 | entry->key.ucast_routing.group_id = group_id; |
| 1061 | entry->key_len = offsetof(struct ofdpa_flow_tbl_key, |
| 1062 | ucast_routing.group_id); |
| 1063 | |
| 1064 | return ofdpa_flow_tbl_do(ofdpa_port, trans, flags, entry); |
| 1065 | } |
| 1066 | |
| 1067 | static int ofdpa_flow_tbl_acl(struct ofdpa_port *ofdpa_port, |
| 1068 | struct switchdev_trans *trans, int flags, |
| 1069 | u32 in_pport, u32 in_pport_mask, |
| 1070 | const u8 *eth_src, const u8 *eth_src_mask, |
| 1071 | const u8 *eth_dst, const u8 *eth_dst_mask, |
| 1072 | __be16 eth_type, __be16 vlan_id, |
| 1073 | __be16 vlan_id_mask, u8 ip_proto, |
| 1074 | u8 ip_proto_mask, u8 ip_tos, u8 ip_tos_mask, |
| 1075 | u32 group_id) |
| 1076 | { |
| 1077 | u32 priority; |
| 1078 | struct ofdpa_flow_tbl_entry *entry; |
| 1079 | |
| 1080 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); |
| 1081 | if (!entry) |
| 1082 | return -ENOMEM; |
| 1083 | |
| 1084 | priority = OFDPA_PRIORITY_ACL_NORMAL; |
| 1085 | if (eth_dst && eth_dst_mask) { |
| 1086 | if (ether_addr_equal(eth_dst_mask, mcast_mac)) |
| 1087 | priority = OFDPA_PRIORITY_ACL_DFLT; |
| 1088 | else if (is_link_local_ether_addr(eth_dst)) |
| 1089 | priority = OFDPA_PRIORITY_ACL_CTRL; |
| 1090 | } |
| 1091 | |
| 1092 | entry->key.priority = priority; |
| 1093 | entry->key.tbl_id = ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; |
| 1094 | entry->key.acl.in_pport = in_pport; |
| 1095 | entry->key.acl.in_pport_mask = in_pport_mask; |
| 1096 | |
| 1097 | if (eth_src) |
| 1098 | ether_addr_copy(entry->key.acl.eth_src, eth_src); |
| 1099 | if (eth_src_mask) |
| 1100 | ether_addr_copy(entry->key.acl.eth_src_mask, eth_src_mask); |
| 1101 | if (eth_dst) |
| 1102 | ether_addr_copy(entry->key.acl.eth_dst, eth_dst); |
| 1103 | if (eth_dst_mask) |
| 1104 | ether_addr_copy(entry->key.acl.eth_dst_mask, eth_dst_mask); |
| 1105 | |
| 1106 | entry->key.acl.eth_type = eth_type; |
| 1107 | entry->key.acl.vlan_id = vlan_id; |
| 1108 | entry->key.acl.vlan_id_mask = vlan_id_mask; |
| 1109 | entry->key.acl.ip_proto = ip_proto; |
| 1110 | entry->key.acl.ip_proto_mask = ip_proto_mask; |
| 1111 | entry->key.acl.ip_tos = ip_tos; |
| 1112 | entry->key.acl.ip_tos_mask = ip_tos_mask; |
| 1113 | entry->key.acl.group_id = group_id; |
| 1114 | |
| 1115 | return ofdpa_flow_tbl_do(ofdpa_port, trans, flags, entry); |
| 1116 | } |
| 1117 | |
| 1118 | static struct ofdpa_group_tbl_entry * |
| 1119 | ofdpa_group_tbl_find(const struct ofdpa *ofdpa, |
| 1120 | const struct ofdpa_group_tbl_entry *match) |
| 1121 | { |
| 1122 | struct ofdpa_group_tbl_entry *found; |
| 1123 | |
| 1124 | hash_for_each_possible(ofdpa->group_tbl, found, |
| 1125 | entry, match->group_id) { |
| 1126 | if (found->group_id == match->group_id) |
| 1127 | return found; |
| 1128 | } |
| 1129 | |
| 1130 | return NULL; |
| 1131 | } |
| 1132 | |
| 1133 | static void ofdpa_group_tbl_entry_free(struct switchdev_trans *trans, |
| 1134 | struct ofdpa_group_tbl_entry *entry) |
| 1135 | { |
| 1136 | switch (ROCKER_GROUP_TYPE_GET(entry->group_id)) { |
| 1137 | case ROCKER_OF_DPA_GROUP_TYPE_L2_FLOOD: |
| 1138 | case ROCKER_OF_DPA_GROUP_TYPE_L2_MCAST: |
| 1139 | ofdpa_kfree(trans, entry->group_ids); |
| 1140 | break; |
| 1141 | default: |
| 1142 | break; |
| 1143 | } |
| 1144 | ofdpa_kfree(trans, entry); |
| 1145 | } |
| 1146 | |
| 1147 | static int ofdpa_group_tbl_add(struct ofdpa_port *ofdpa_port, |
| 1148 | struct switchdev_trans *trans, int flags, |
| 1149 | struct ofdpa_group_tbl_entry *match) |
| 1150 | { |
| 1151 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; |
| 1152 | struct ofdpa_group_tbl_entry *found; |
| 1153 | unsigned long lock_flags; |
| 1154 | |
| 1155 | spin_lock_irqsave(&ofdpa->group_tbl_lock, lock_flags); |
| 1156 | |
| 1157 | found = ofdpa_group_tbl_find(ofdpa, match); |
| 1158 | |
| 1159 | if (found) { |
| 1160 | if (!switchdev_trans_ph_prepare(trans)) |
| 1161 | hash_del(&found->entry); |
| 1162 | ofdpa_group_tbl_entry_free(trans, found); |
| 1163 | found = match; |
| 1164 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_MOD; |
| 1165 | } else { |
| 1166 | found = match; |
| 1167 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_ADD; |
| 1168 | } |
| 1169 | |
| 1170 | if (!switchdev_trans_ph_prepare(trans)) |
| 1171 | hash_add(ofdpa->group_tbl, &found->entry, found->group_id); |
| 1172 | |
| 1173 | spin_unlock_irqrestore(&ofdpa->group_tbl_lock, lock_flags); |
| 1174 | |
| 1175 | if (!switchdev_trans_ph_prepare(trans)) |
| 1176 | return rocker_cmd_exec(ofdpa_port->rocker_port, |
| 1177 | ofdpa_flags_nowait(flags), |
| 1178 | ofdpa_cmd_group_tbl_add, |
| 1179 | found, NULL, NULL); |
| 1180 | return 0; |
| 1181 | } |
| 1182 | |
| 1183 | static int ofdpa_group_tbl_del(struct ofdpa_port *ofdpa_port, |
| 1184 | struct switchdev_trans *trans, int flags, |
| 1185 | struct ofdpa_group_tbl_entry *match) |
| 1186 | { |
| 1187 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; |
| 1188 | struct ofdpa_group_tbl_entry *found; |
| 1189 | unsigned long lock_flags; |
| 1190 | int err = 0; |
| 1191 | |
| 1192 | spin_lock_irqsave(&ofdpa->group_tbl_lock, lock_flags); |
| 1193 | |
| 1194 | found = ofdpa_group_tbl_find(ofdpa, match); |
| 1195 | |
| 1196 | if (found) { |
| 1197 | if (!switchdev_trans_ph_prepare(trans)) |
| 1198 | hash_del(&found->entry); |
| 1199 | found->cmd = ROCKER_TLV_CMD_TYPE_OF_DPA_GROUP_DEL; |
| 1200 | } |
| 1201 | |
| 1202 | spin_unlock_irqrestore(&ofdpa->group_tbl_lock, lock_flags); |
| 1203 | |
| 1204 | ofdpa_group_tbl_entry_free(trans, match); |
| 1205 | |
| 1206 | if (found) { |
| 1207 | if (!switchdev_trans_ph_prepare(trans)) |
| 1208 | err = rocker_cmd_exec(ofdpa_port->rocker_port, |
| 1209 | ofdpa_flags_nowait(flags), |
| 1210 | ofdpa_cmd_group_tbl_del, |
| 1211 | found, NULL, NULL); |
| 1212 | ofdpa_group_tbl_entry_free(trans, found); |
| 1213 | } |
| 1214 | |
| 1215 | return err; |
| 1216 | } |
| 1217 | |
| 1218 | static int ofdpa_group_tbl_do(struct ofdpa_port *ofdpa_port, |
| 1219 | struct switchdev_trans *trans, int flags, |
| 1220 | struct ofdpa_group_tbl_entry *entry) |
| 1221 | { |
| 1222 | if (flags & OFDPA_OP_FLAG_REMOVE) |
| 1223 | return ofdpa_group_tbl_del(ofdpa_port, trans, flags, entry); |
| 1224 | else |
| 1225 | return ofdpa_group_tbl_add(ofdpa_port, trans, flags, entry); |
| 1226 | } |
| 1227 | |
| 1228 | static int ofdpa_group_l2_interface(struct ofdpa_port *ofdpa_port, |
| 1229 | struct switchdev_trans *trans, int flags, |
| 1230 | __be16 vlan_id, u32 out_pport, |
| 1231 | int pop_vlan) |
| 1232 | { |
| 1233 | struct ofdpa_group_tbl_entry *entry; |
| 1234 | |
| 1235 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); |
| 1236 | if (!entry) |
| 1237 | return -ENOMEM; |
| 1238 | |
| 1239 | entry->group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport); |
| 1240 | entry->l2_interface.pop_vlan = pop_vlan; |
| 1241 | |
| 1242 | return ofdpa_group_tbl_do(ofdpa_port, trans, flags, entry); |
| 1243 | } |
| 1244 | |
| 1245 | static int ofdpa_group_l2_fan_out(struct ofdpa_port *ofdpa_port, |
| 1246 | struct switchdev_trans *trans, |
| 1247 | int flags, u8 group_count, |
| 1248 | const u32 *group_ids, u32 group_id) |
| 1249 | { |
| 1250 | struct ofdpa_group_tbl_entry *entry; |
| 1251 | |
| 1252 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); |
| 1253 | if (!entry) |
| 1254 | return -ENOMEM; |
| 1255 | |
| 1256 | entry->group_id = group_id; |
| 1257 | entry->group_count = group_count; |
| 1258 | |
| 1259 | entry->group_ids = ofdpa_kcalloc(trans, flags, |
| 1260 | group_count, sizeof(u32)); |
| 1261 | if (!entry->group_ids) { |
| 1262 | ofdpa_kfree(trans, entry); |
| 1263 | return -ENOMEM; |
| 1264 | } |
| 1265 | memcpy(entry->group_ids, group_ids, group_count * sizeof(u32)); |
| 1266 | |
| 1267 | return ofdpa_group_tbl_do(ofdpa_port, trans, flags, entry); |
| 1268 | } |
| 1269 | |
| 1270 | static int ofdpa_group_l2_flood(struct ofdpa_port *ofdpa_port, |
| 1271 | struct switchdev_trans *trans, int flags, |
| 1272 | __be16 vlan_id, u8 group_count, |
| 1273 | const u32 *group_ids, u32 group_id) |
| 1274 | { |
| 1275 | return ofdpa_group_l2_fan_out(ofdpa_port, trans, flags, |
| 1276 | group_count, group_ids, |
| 1277 | group_id); |
| 1278 | } |
| 1279 | |
| 1280 | static int ofdpa_group_l3_unicast(struct ofdpa_port *ofdpa_port, |
| 1281 | struct switchdev_trans *trans, int flags, |
| 1282 | u32 index, const u8 *src_mac, const u8 *dst_mac, |
| 1283 | __be16 vlan_id, bool ttl_check, u32 pport) |
| 1284 | { |
| 1285 | struct ofdpa_group_tbl_entry *entry; |
| 1286 | |
| 1287 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); |
| 1288 | if (!entry) |
| 1289 | return -ENOMEM; |
| 1290 | |
| 1291 | entry->group_id = ROCKER_GROUP_L3_UNICAST(index); |
| 1292 | if (src_mac) |
| 1293 | ether_addr_copy(entry->l3_unicast.eth_src, src_mac); |
| 1294 | if (dst_mac) |
| 1295 | ether_addr_copy(entry->l3_unicast.eth_dst, dst_mac); |
| 1296 | entry->l3_unicast.vlan_id = vlan_id; |
| 1297 | entry->l3_unicast.ttl_check = ttl_check; |
| 1298 | entry->l3_unicast.group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, pport); |
| 1299 | |
| 1300 | return ofdpa_group_tbl_do(ofdpa_port, trans, flags, entry); |
| 1301 | } |
| 1302 | |
| 1303 | static struct ofdpa_neigh_tbl_entry * |
| 1304 | ofdpa_neigh_tbl_find(const struct ofdpa *ofdpa, __be32 ip_addr) |
| 1305 | { |
| 1306 | struct ofdpa_neigh_tbl_entry *found; |
| 1307 | |
| 1308 | hash_for_each_possible(ofdpa->neigh_tbl, found, |
| 1309 | entry, be32_to_cpu(ip_addr)) |
| 1310 | if (found->ip_addr == ip_addr) |
| 1311 | return found; |
| 1312 | |
| 1313 | return NULL; |
| 1314 | } |
| 1315 | |
| 1316 | static void ofdpa_neigh_add(struct ofdpa *ofdpa, |
| 1317 | struct switchdev_trans *trans, |
| 1318 | struct ofdpa_neigh_tbl_entry *entry) |
| 1319 | { |
| 1320 | if (!switchdev_trans_ph_commit(trans)) |
| 1321 | entry->index = ofdpa->neigh_tbl_next_index++; |
| 1322 | if (switchdev_trans_ph_prepare(trans)) |
| 1323 | return; |
| 1324 | entry->ref_count++; |
| 1325 | hash_add(ofdpa->neigh_tbl, &entry->entry, |
| 1326 | be32_to_cpu(entry->ip_addr)); |
| 1327 | } |
| 1328 | |
| 1329 | static void ofdpa_neigh_del(struct switchdev_trans *trans, |
| 1330 | struct ofdpa_neigh_tbl_entry *entry) |
| 1331 | { |
| 1332 | if (switchdev_trans_ph_prepare(trans)) |
| 1333 | return; |
| 1334 | if (--entry->ref_count == 0) { |
| 1335 | hash_del(&entry->entry); |
| 1336 | ofdpa_kfree(trans, entry); |
| 1337 | } |
| 1338 | } |
| 1339 | |
| 1340 | static void ofdpa_neigh_update(struct ofdpa_neigh_tbl_entry *entry, |
| 1341 | struct switchdev_trans *trans, |
| 1342 | const u8 *eth_dst, bool ttl_check) |
| 1343 | { |
| 1344 | if (eth_dst) { |
| 1345 | ether_addr_copy(entry->eth_dst, eth_dst); |
| 1346 | entry->ttl_check = ttl_check; |
| 1347 | } else if (!switchdev_trans_ph_prepare(trans)) { |
| 1348 | entry->ref_count++; |
| 1349 | } |
| 1350 | } |
| 1351 | |
| 1352 | static int ofdpa_port_ipv4_neigh(struct ofdpa_port *ofdpa_port, |
| 1353 | struct switchdev_trans *trans, |
| 1354 | int flags, __be32 ip_addr, const u8 *eth_dst) |
| 1355 | { |
| 1356 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; |
| 1357 | struct ofdpa_neigh_tbl_entry *entry; |
| 1358 | struct ofdpa_neigh_tbl_entry *found; |
| 1359 | unsigned long lock_flags; |
| 1360 | __be16 eth_type = htons(ETH_P_IP); |
| 1361 | enum rocker_of_dpa_table_id goto_tbl = |
| 1362 | ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; |
| 1363 | u32 group_id; |
| 1364 | u32 priority = 0; |
| 1365 | bool adding = !(flags & OFDPA_OP_FLAG_REMOVE); |
| 1366 | bool updating; |
| 1367 | bool removing; |
| 1368 | int err = 0; |
| 1369 | |
| 1370 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); |
| 1371 | if (!entry) |
| 1372 | return -ENOMEM; |
| 1373 | |
| 1374 | spin_lock_irqsave(&ofdpa->neigh_tbl_lock, lock_flags); |
| 1375 | |
| 1376 | found = ofdpa_neigh_tbl_find(ofdpa, ip_addr); |
| 1377 | |
| 1378 | updating = found && adding; |
| 1379 | removing = found && !adding; |
| 1380 | adding = !found && adding; |
| 1381 | |
| 1382 | if (adding) { |
| 1383 | entry->ip_addr = ip_addr; |
| 1384 | entry->dev = ofdpa_port->dev; |
| 1385 | ether_addr_copy(entry->eth_dst, eth_dst); |
| 1386 | entry->ttl_check = true; |
| 1387 | ofdpa_neigh_add(ofdpa, trans, entry); |
| 1388 | } else if (removing) { |
| 1389 | memcpy(entry, found, sizeof(*entry)); |
| 1390 | ofdpa_neigh_del(trans, found); |
| 1391 | } else if (updating) { |
| 1392 | ofdpa_neigh_update(found, trans, eth_dst, true); |
| 1393 | memcpy(entry, found, sizeof(*entry)); |
| 1394 | } else { |
| 1395 | err = -ENOENT; |
| 1396 | } |
| 1397 | |
| 1398 | spin_unlock_irqrestore(&ofdpa->neigh_tbl_lock, lock_flags); |
| 1399 | |
| 1400 | if (err) |
| 1401 | goto err_out; |
| 1402 | |
| 1403 | /* For each active neighbor, we have an L3 unicast group and |
| 1404 | * a /32 route to the neighbor, which uses the L3 unicast |
| 1405 | * group. The L3 unicast group can also be referred to by |
| 1406 | * other routes' nexthops. |
| 1407 | */ |
| 1408 | |
| 1409 | err = ofdpa_group_l3_unicast(ofdpa_port, trans, flags, |
| 1410 | entry->index, |
| 1411 | ofdpa_port->dev->dev_addr, |
| 1412 | entry->eth_dst, |
| 1413 | ofdpa_port->internal_vlan_id, |
| 1414 | entry->ttl_check, |
| 1415 | ofdpa_port->pport); |
| 1416 | if (err) { |
| 1417 | netdev_err(ofdpa_port->dev, "Error (%d) L3 unicast group index %d\n", |
| 1418 | err, entry->index); |
| 1419 | goto err_out; |
| 1420 | } |
| 1421 | |
| 1422 | if (adding || removing) { |
| 1423 | group_id = ROCKER_GROUP_L3_UNICAST(entry->index); |
| 1424 | err = ofdpa_flow_tbl_ucast4_routing(ofdpa_port, trans, |
| 1425 | eth_type, ip_addr, |
| 1426 | inet_make_mask(32), |
| 1427 | priority, goto_tbl, |
| 1428 | group_id, flags); |
| 1429 | |
| 1430 | if (err) |
| 1431 | netdev_err(ofdpa_port->dev, "Error (%d) /32 unicast route %pI4 group 0x%08x\n", |
| 1432 | err, &entry->ip_addr, group_id); |
| 1433 | } |
| 1434 | |
| 1435 | err_out: |
| 1436 | if (!adding) |
| 1437 | ofdpa_kfree(trans, entry); |
| 1438 | |
| 1439 | return err; |
| 1440 | } |
| 1441 | |
| 1442 | static int ofdpa_port_ipv4_resolve(struct ofdpa_port *ofdpa_port, |
| 1443 | struct switchdev_trans *trans, |
| 1444 | __be32 ip_addr) |
| 1445 | { |
| 1446 | struct net_device *dev = ofdpa_port->dev; |
| 1447 | struct neighbour *n = __ipv4_neigh_lookup(dev, (__force u32)ip_addr); |
| 1448 | int err = 0; |
| 1449 | |
| 1450 | if (!n) { |
| 1451 | n = neigh_create(&arp_tbl, &ip_addr, dev); |
| 1452 | if (IS_ERR(n)) |
Dan Carpenter | f73e0c2 | 2016-02-27 14:31:43 +0300 | [diff] [blame] | 1453 | return PTR_ERR(n); |
Jiri Pirko | 3fbcdbf | 2016-02-16 15:14:50 +0100 | [diff] [blame] | 1454 | } |
| 1455 | |
| 1456 | /* If the neigh is already resolved, then go ahead and |
| 1457 | * install the entry, otherwise start the ARP process to |
| 1458 | * resolve the neigh. |
| 1459 | */ |
| 1460 | |
| 1461 | if (n->nud_state & NUD_VALID) |
| 1462 | err = ofdpa_port_ipv4_neigh(ofdpa_port, trans, 0, |
| 1463 | ip_addr, n->ha); |
| 1464 | else |
| 1465 | neigh_event_send(n, NULL); |
| 1466 | |
| 1467 | neigh_release(n); |
| 1468 | return err; |
| 1469 | } |
| 1470 | |
| 1471 | static int ofdpa_port_ipv4_nh(struct ofdpa_port *ofdpa_port, |
| 1472 | struct switchdev_trans *trans, int flags, |
| 1473 | __be32 ip_addr, u32 *index) |
| 1474 | { |
| 1475 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; |
| 1476 | struct ofdpa_neigh_tbl_entry *entry; |
| 1477 | struct ofdpa_neigh_tbl_entry *found; |
| 1478 | unsigned long lock_flags; |
| 1479 | bool adding = !(flags & OFDPA_OP_FLAG_REMOVE); |
| 1480 | bool updating; |
| 1481 | bool removing; |
| 1482 | bool resolved = true; |
| 1483 | int err = 0; |
| 1484 | |
| 1485 | entry = ofdpa_kzalloc(trans, flags, sizeof(*entry)); |
| 1486 | if (!entry) |
| 1487 | return -ENOMEM; |
| 1488 | |
| 1489 | spin_lock_irqsave(&ofdpa->neigh_tbl_lock, lock_flags); |
| 1490 | |
| 1491 | found = ofdpa_neigh_tbl_find(ofdpa, ip_addr); |
| 1492 | if (found) |
| 1493 | *index = found->index; |
| 1494 | |
| 1495 | updating = found && adding; |
| 1496 | removing = found && !adding; |
| 1497 | adding = !found && adding; |
| 1498 | |
| 1499 | if (adding) { |
| 1500 | entry->ip_addr = ip_addr; |
| 1501 | entry->dev = ofdpa_port->dev; |
| 1502 | ofdpa_neigh_add(ofdpa, trans, entry); |
| 1503 | *index = entry->index; |
| 1504 | resolved = false; |
| 1505 | } else if (removing) { |
| 1506 | ofdpa_neigh_del(trans, found); |
| 1507 | } else if (updating) { |
| 1508 | ofdpa_neigh_update(found, trans, NULL, false); |
| 1509 | resolved = !is_zero_ether_addr(found->eth_dst); |
| 1510 | } else { |
| 1511 | err = -ENOENT; |
| 1512 | } |
| 1513 | |
| 1514 | spin_unlock_irqrestore(&ofdpa->neigh_tbl_lock, lock_flags); |
| 1515 | |
| 1516 | if (!adding) |
| 1517 | ofdpa_kfree(trans, entry); |
| 1518 | |
| 1519 | if (err) |
| 1520 | return err; |
| 1521 | |
| 1522 | /* Resolved means neigh ip_addr is resolved to neigh mac. */ |
| 1523 | |
| 1524 | if (!resolved) |
| 1525 | err = ofdpa_port_ipv4_resolve(ofdpa_port, trans, ip_addr); |
| 1526 | |
| 1527 | return err; |
| 1528 | } |
| 1529 | |
| 1530 | static struct ofdpa_port *ofdpa_port_get(const struct ofdpa *ofdpa, |
| 1531 | int port_index) |
| 1532 | { |
| 1533 | struct rocker_port *rocker_port; |
| 1534 | |
| 1535 | rocker_port = ofdpa->rocker->ports[port_index]; |
| 1536 | return rocker_port ? rocker_port->wpriv : NULL; |
| 1537 | } |
| 1538 | |
| 1539 | static int ofdpa_port_vlan_flood_group(struct ofdpa_port *ofdpa_port, |
| 1540 | struct switchdev_trans *trans, |
| 1541 | int flags, __be16 vlan_id) |
| 1542 | { |
| 1543 | struct ofdpa_port *p; |
| 1544 | const struct ofdpa *ofdpa = ofdpa_port->ofdpa; |
| 1545 | unsigned int port_count = ofdpa->rocker->port_count; |
| 1546 | u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0); |
| 1547 | u32 *group_ids; |
| 1548 | u8 group_count = 0; |
| 1549 | int err = 0; |
| 1550 | int i; |
| 1551 | |
| 1552 | group_ids = ofdpa_kcalloc(trans, flags, port_count, sizeof(u32)); |
| 1553 | if (!group_ids) |
| 1554 | return -ENOMEM; |
| 1555 | |
| 1556 | /* Adjust the flood group for this VLAN. The flood group |
| 1557 | * references an L2 interface group for each port in this |
| 1558 | * VLAN. |
| 1559 | */ |
| 1560 | |
| 1561 | for (i = 0; i < port_count; i++) { |
| 1562 | p = ofdpa_port_get(ofdpa, i); |
| 1563 | if (!p) |
| 1564 | continue; |
| 1565 | if (!ofdpa_port_is_bridged(p)) |
| 1566 | continue; |
| 1567 | if (test_bit(ntohs(vlan_id), p->vlan_bitmap)) { |
| 1568 | group_ids[group_count++] = |
| 1569 | ROCKER_GROUP_L2_INTERFACE(vlan_id, p->pport); |
| 1570 | } |
| 1571 | } |
| 1572 | |
| 1573 | /* If there are no bridged ports in this VLAN, we're done */ |
| 1574 | if (group_count == 0) |
| 1575 | goto no_ports_in_vlan; |
| 1576 | |
| 1577 | err = ofdpa_group_l2_flood(ofdpa_port, trans, flags, vlan_id, |
| 1578 | group_count, group_ids, group_id); |
| 1579 | if (err) |
| 1580 | netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 flood group\n", err); |
| 1581 | |
| 1582 | no_ports_in_vlan: |
| 1583 | ofdpa_kfree(trans, group_ids); |
| 1584 | return err; |
| 1585 | } |
| 1586 | |
| 1587 | static int ofdpa_port_vlan_l2_groups(struct ofdpa_port *ofdpa_port, |
| 1588 | struct switchdev_trans *trans, int flags, |
| 1589 | __be16 vlan_id, bool pop_vlan) |
| 1590 | { |
| 1591 | const struct ofdpa *ofdpa = ofdpa_port->ofdpa; |
| 1592 | unsigned int port_count = ofdpa->rocker->port_count; |
| 1593 | struct ofdpa_port *p; |
| 1594 | bool adding = !(flags & OFDPA_OP_FLAG_REMOVE); |
| 1595 | u32 out_pport; |
| 1596 | int ref = 0; |
| 1597 | int err; |
| 1598 | int i; |
| 1599 | |
| 1600 | /* An L2 interface group for this port in this VLAN, but |
| 1601 | * only when port STP state is LEARNING|FORWARDING. |
| 1602 | */ |
| 1603 | |
| 1604 | if (ofdpa_port->stp_state == BR_STATE_LEARNING || |
| 1605 | ofdpa_port->stp_state == BR_STATE_FORWARDING) { |
| 1606 | out_pport = ofdpa_port->pport; |
| 1607 | err = ofdpa_group_l2_interface(ofdpa_port, trans, flags, |
| 1608 | vlan_id, out_pport, pop_vlan); |
| 1609 | if (err) { |
| 1610 | netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 group for pport %d\n", |
| 1611 | err, out_pport); |
| 1612 | return err; |
| 1613 | } |
| 1614 | } |
| 1615 | |
| 1616 | /* An L2 interface group for this VLAN to CPU port. |
| 1617 | * Add when first port joins this VLAN and destroy when |
| 1618 | * last port leaves this VLAN. |
| 1619 | */ |
| 1620 | |
| 1621 | for (i = 0; i < port_count; i++) { |
| 1622 | p = ofdpa_port_get(ofdpa, i); |
| 1623 | if (p && test_bit(ntohs(vlan_id), p->vlan_bitmap)) |
| 1624 | ref++; |
| 1625 | } |
| 1626 | |
| 1627 | if ((!adding || ref != 1) && (adding || ref != 0)) |
| 1628 | return 0; |
| 1629 | |
| 1630 | out_pport = 0; |
| 1631 | err = ofdpa_group_l2_interface(ofdpa_port, trans, flags, |
| 1632 | vlan_id, out_pport, pop_vlan); |
| 1633 | if (err) { |
| 1634 | netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 group for CPU port\n", err); |
| 1635 | return err; |
| 1636 | } |
| 1637 | |
| 1638 | return 0; |
| 1639 | } |
| 1640 | |
| 1641 | static struct ofdpa_ctrl { |
| 1642 | const u8 *eth_dst; |
| 1643 | const u8 *eth_dst_mask; |
| 1644 | __be16 eth_type; |
| 1645 | bool acl; |
| 1646 | bool bridge; |
| 1647 | bool term; |
| 1648 | bool copy_to_cpu; |
| 1649 | } ofdpa_ctrls[] = { |
| 1650 | [OFDPA_CTRL_LINK_LOCAL_MCAST] = { |
| 1651 | /* pass link local multicast pkts up to CPU for filtering */ |
| 1652 | .eth_dst = ll_mac, |
| 1653 | .eth_dst_mask = ll_mask, |
| 1654 | .acl = true, |
| 1655 | }, |
| 1656 | [OFDPA_CTRL_LOCAL_ARP] = { |
| 1657 | /* pass local ARP pkts up to CPU */ |
| 1658 | .eth_dst = zero_mac, |
| 1659 | .eth_dst_mask = zero_mac, |
| 1660 | .eth_type = htons(ETH_P_ARP), |
| 1661 | .acl = true, |
| 1662 | }, |
| 1663 | [OFDPA_CTRL_IPV4_MCAST] = { |
| 1664 | /* pass IPv4 mcast pkts up to CPU, RFC 1112 */ |
| 1665 | .eth_dst = ipv4_mcast, |
| 1666 | .eth_dst_mask = ipv4_mask, |
| 1667 | .eth_type = htons(ETH_P_IP), |
| 1668 | .term = true, |
| 1669 | .copy_to_cpu = true, |
| 1670 | }, |
| 1671 | [OFDPA_CTRL_IPV6_MCAST] = { |
| 1672 | /* pass IPv6 mcast pkts up to CPU, RFC 2464 */ |
| 1673 | .eth_dst = ipv6_mcast, |
| 1674 | .eth_dst_mask = ipv6_mask, |
| 1675 | .eth_type = htons(ETH_P_IPV6), |
| 1676 | .term = true, |
| 1677 | .copy_to_cpu = true, |
| 1678 | }, |
| 1679 | [OFDPA_CTRL_DFLT_BRIDGING] = { |
| 1680 | /* flood any pkts on vlan */ |
| 1681 | .bridge = true, |
| 1682 | .copy_to_cpu = true, |
| 1683 | }, |
| 1684 | [OFDPA_CTRL_DFLT_OVS] = { |
| 1685 | /* pass all pkts up to CPU */ |
| 1686 | .eth_dst = zero_mac, |
| 1687 | .eth_dst_mask = zero_mac, |
| 1688 | .acl = true, |
| 1689 | }, |
| 1690 | }; |
| 1691 | |
| 1692 | static int ofdpa_port_ctrl_vlan_acl(struct ofdpa_port *ofdpa_port, |
| 1693 | struct switchdev_trans *trans, int flags, |
| 1694 | const struct ofdpa_ctrl *ctrl, __be16 vlan_id) |
| 1695 | { |
| 1696 | u32 in_pport = ofdpa_port->pport; |
| 1697 | u32 in_pport_mask = 0xffffffff; |
| 1698 | u32 out_pport = 0; |
| 1699 | const u8 *eth_src = NULL; |
| 1700 | const u8 *eth_src_mask = NULL; |
| 1701 | __be16 vlan_id_mask = htons(0xffff); |
| 1702 | u8 ip_proto = 0; |
| 1703 | u8 ip_proto_mask = 0; |
| 1704 | u8 ip_tos = 0; |
| 1705 | u8 ip_tos_mask = 0; |
| 1706 | u32 group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport); |
| 1707 | int err; |
| 1708 | |
| 1709 | err = ofdpa_flow_tbl_acl(ofdpa_port, trans, flags, |
| 1710 | in_pport, in_pport_mask, |
| 1711 | eth_src, eth_src_mask, |
| 1712 | ctrl->eth_dst, ctrl->eth_dst_mask, |
| 1713 | ctrl->eth_type, |
| 1714 | vlan_id, vlan_id_mask, |
| 1715 | ip_proto, ip_proto_mask, |
| 1716 | ip_tos, ip_tos_mask, |
| 1717 | group_id); |
| 1718 | |
| 1719 | if (err) |
| 1720 | netdev_err(ofdpa_port->dev, "Error (%d) ctrl ACL\n", err); |
| 1721 | |
| 1722 | return err; |
| 1723 | } |
| 1724 | |
| 1725 | static int ofdpa_port_ctrl_vlan_bridge(struct ofdpa_port *ofdpa_port, |
| 1726 | struct switchdev_trans *trans, |
| 1727 | int flags, |
| 1728 | const struct ofdpa_ctrl *ctrl, |
| 1729 | __be16 vlan_id) |
| 1730 | { |
| 1731 | enum rocker_of_dpa_table_id goto_tbl = |
| 1732 | ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; |
| 1733 | u32 group_id = ROCKER_GROUP_L2_FLOOD(vlan_id, 0); |
| 1734 | u32 tunnel_id = 0; |
| 1735 | int err; |
| 1736 | |
| 1737 | if (!ofdpa_port_is_bridged(ofdpa_port)) |
| 1738 | return 0; |
| 1739 | |
| 1740 | err = ofdpa_flow_tbl_bridge(ofdpa_port, trans, flags, |
| 1741 | ctrl->eth_dst, ctrl->eth_dst_mask, |
| 1742 | vlan_id, tunnel_id, |
| 1743 | goto_tbl, group_id, ctrl->copy_to_cpu); |
| 1744 | |
| 1745 | if (err) |
| 1746 | netdev_err(ofdpa_port->dev, "Error (%d) ctrl FLOOD\n", err); |
| 1747 | |
| 1748 | return err; |
| 1749 | } |
| 1750 | |
| 1751 | static int ofdpa_port_ctrl_vlan_term(struct ofdpa_port *ofdpa_port, |
| 1752 | struct switchdev_trans *trans, int flags, |
| 1753 | const struct ofdpa_ctrl *ctrl, __be16 vlan_id) |
| 1754 | { |
| 1755 | u32 in_pport_mask = 0xffffffff; |
| 1756 | __be16 vlan_id_mask = htons(0xffff); |
| 1757 | int err; |
| 1758 | |
| 1759 | if (ntohs(vlan_id) == 0) |
| 1760 | vlan_id = ofdpa_port->internal_vlan_id; |
| 1761 | |
| 1762 | err = ofdpa_flow_tbl_term_mac(ofdpa_port, trans, |
| 1763 | ofdpa_port->pport, in_pport_mask, |
| 1764 | ctrl->eth_type, ctrl->eth_dst, |
| 1765 | ctrl->eth_dst_mask, vlan_id, |
| 1766 | vlan_id_mask, ctrl->copy_to_cpu, |
| 1767 | flags); |
| 1768 | |
| 1769 | if (err) |
| 1770 | netdev_err(ofdpa_port->dev, "Error (%d) ctrl term\n", err); |
| 1771 | |
| 1772 | return err; |
| 1773 | } |
| 1774 | |
| 1775 | static int ofdpa_port_ctrl_vlan(struct ofdpa_port *ofdpa_port, |
| 1776 | struct switchdev_trans *trans, int flags, |
| 1777 | const struct ofdpa_ctrl *ctrl, __be16 vlan_id) |
| 1778 | { |
| 1779 | if (ctrl->acl) |
| 1780 | return ofdpa_port_ctrl_vlan_acl(ofdpa_port, trans, flags, |
| 1781 | ctrl, vlan_id); |
| 1782 | if (ctrl->bridge) |
| 1783 | return ofdpa_port_ctrl_vlan_bridge(ofdpa_port, trans, flags, |
| 1784 | ctrl, vlan_id); |
| 1785 | |
| 1786 | if (ctrl->term) |
| 1787 | return ofdpa_port_ctrl_vlan_term(ofdpa_port, trans, flags, |
| 1788 | ctrl, vlan_id); |
| 1789 | |
| 1790 | return -EOPNOTSUPP; |
| 1791 | } |
| 1792 | |
| 1793 | static int ofdpa_port_ctrl_vlan_add(struct ofdpa_port *ofdpa_port, |
| 1794 | struct switchdev_trans *trans, int flags, |
| 1795 | __be16 vlan_id) |
| 1796 | { |
| 1797 | int err = 0; |
| 1798 | int i; |
| 1799 | |
| 1800 | for (i = 0; i < OFDPA_CTRL_MAX; i++) { |
| 1801 | if (ofdpa_port->ctrls[i]) { |
| 1802 | err = ofdpa_port_ctrl_vlan(ofdpa_port, trans, flags, |
| 1803 | &ofdpa_ctrls[i], vlan_id); |
| 1804 | if (err) |
| 1805 | return err; |
| 1806 | } |
| 1807 | } |
| 1808 | |
| 1809 | return err; |
| 1810 | } |
| 1811 | |
| 1812 | static int ofdpa_port_ctrl(struct ofdpa_port *ofdpa_port, |
| 1813 | struct switchdev_trans *trans, int flags, |
| 1814 | const struct ofdpa_ctrl *ctrl) |
| 1815 | { |
| 1816 | u16 vid; |
| 1817 | int err = 0; |
| 1818 | |
| 1819 | for (vid = 1; vid < VLAN_N_VID; vid++) { |
| 1820 | if (!test_bit(vid, ofdpa_port->vlan_bitmap)) |
| 1821 | continue; |
| 1822 | err = ofdpa_port_ctrl_vlan(ofdpa_port, trans, flags, |
| 1823 | ctrl, htons(vid)); |
| 1824 | if (err) |
| 1825 | break; |
| 1826 | } |
| 1827 | |
| 1828 | return err; |
| 1829 | } |
| 1830 | |
| 1831 | static int ofdpa_port_vlan(struct ofdpa_port *ofdpa_port, |
| 1832 | struct switchdev_trans *trans, int flags, u16 vid) |
| 1833 | { |
| 1834 | enum rocker_of_dpa_table_id goto_tbl = |
| 1835 | ROCKER_OF_DPA_TABLE_ID_TERMINATION_MAC; |
| 1836 | u32 in_pport = ofdpa_port->pport; |
| 1837 | __be16 vlan_id = htons(vid); |
| 1838 | __be16 vlan_id_mask = htons(0xffff); |
| 1839 | __be16 internal_vlan_id; |
| 1840 | bool untagged; |
| 1841 | bool adding = !(flags & OFDPA_OP_FLAG_REMOVE); |
| 1842 | int err; |
| 1843 | |
| 1844 | internal_vlan_id = ofdpa_port_vid_to_vlan(ofdpa_port, vid, &untagged); |
| 1845 | |
| 1846 | if (adding && |
| 1847 | test_bit(ntohs(internal_vlan_id), ofdpa_port->vlan_bitmap)) |
| 1848 | return 0; /* already added */ |
| 1849 | else if (!adding && |
| 1850 | !test_bit(ntohs(internal_vlan_id), ofdpa_port->vlan_bitmap)) |
| 1851 | return 0; /* already removed */ |
| 1852 | |
| 1853 | change_bit(ntohs(internal_vlan_id), ofdpa_port->vlan_bitmap); |
| 1854 | |
| 1855 | if (adding) { |
| 1856 | err = ofdpa_port_ctrl_vlan_add(ofdpa_port, trans, flags, |
| 1857 | internal_vlan_id); |
| 1858 | if (err) { |
| 1859 | netdev_err(ofdpa_port->dev, "Error (%d) port ctrl vlan add\n", err); |
| 1860 | goto err_out; |
| 1861 | } |
| 1862 | } |
| 1863 | |
| 1864 | err = ofdpa_port_vlan_l2_groups(ofdpa_port, trans, flags, |
| 1865 | internal_vlan_id, untagged); |
| 1866 | if (err) { |
| 1867 | netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 groups\n", err); |
| 1868 | goto err_out; |
| 1869 | } |
| 1870 | |
| 1871 | err = ofdpa_port_vlan_flood_group(ofdpa_port, trans, flags, |
| 1872 | internal_vlan_id); |
| 1873 | if (err) { |
| 1874 | netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 flood group\n", err); |
| 1875 | goto err_out; |
| 1876 | } |
| 1877 | |
| 1878 | err = ofdpa_flow_tbl_vlan(ofdpa_port, trans, flags, |
| 1879 | in_pport, vlan_id, vlan_id_mask, |
| 1880 | goto_tbl, untagged, internal_vlan_id); |
| 1881 | if (err) |
| 1882 | netdev_err(ofdpa_port->dev, "Error (%d) port VLAN table\n", err); |
| 1883 | |
| 1884 | err_out: |
| 1885 | if (switchdev_trans_ph_prepare(trans)) |
| 1886 | change_bit(ntohs(internal_vlan_id), ofdpa_port->vlan_bitmap); |
| 1887 | |
| 1888 | return err; |
| 1889 | } |
| 1890 | |
| 1891 | static int ofdpa_port_ig_tbl(struct ofdpa_port *ofdpa_port, |
| 1892 | struct switchdev_trans *trans, int flags) |
| 1893 | { |
| 1894 | enum rocker_of_dpa_table_id goto_tbl; |
| 1895 | u32 in_pport; |
| 1896 | u32 in_pport_mask; |
| 1897 | int err; |
| 1898 | |
| 1899 | /* Normal Ethernet Frames. Matches pkts from any local physical |
| 1900 | * ports. Goto VLAN tbl. |
| 1901 | */ |
| 1902 | |
| 1903 | in_pport = 0; |
| 1904 | in_pport_mask = 0xffff0000; |
| 1905 | goto_tbl = ROCKER_OF_DPA_TABLE_ID_VLAN; |
| 1906 | |
| 1907 | err = ofdpa_flow_tbl_ig_port(ofdpa_port, trans, flags, |
| 1908 | in_pport, in_pport_mask, |
| 1909 | goto_tbl); |
| 1910 | if (err) |
| 1911 | netdev_err(ofdpa_port->dev, "Error (%d) ingress port table entry\n", err); |
| 1912 | |
| 1913 | return err; |
| 1914 | } |
| 1915 | |
| 1916 | struct ofdpa_fdb_learn_work { |
| 1917 | struct work_struct work; |
| 1918 | struct ofdpa_port *ofdpa_port; |
| 1919 | struct switchdev_trans *trans; |
| 1920 | int flags; |
| 1921 | u8 addr[ETH_ALEN]; |
| 1922 | u16 vid; |
| 1923 | }; |
| 1924 | |
| 1925 | static void ofdpa_port_fdb_learn_work(struct work_struct *work) |
| 1926 | { |
| 1927 | const struct ofdpa_fdb_learn_work *lw = |
| 1928 | container_of(work, struct ofdpa_fdb_learn_work, work); |
| 1929 | bool removing = (lw->flags & OFDPA_OP_FLAG_REMOVE); |
| 1930 | bool learned = (lw->flags & OFDPA_OP_FLAG_LEARNED); |
| 1931 | struct switchdev_notifier_fdb_info info; |
| 1932 | |
| 1933 | info.addr = lw->addr; |
| 1934 | info.vid = lw->vid; |
| 1935 | |
| 1936 | rtnl_lock(); |
| 1937 | if (learned && removing) |
| 1938 | call_switchdev_notifiers(SWITCHDEV_FDB_DEL, |
| 1939 | lw->ofdpa_port->dev, &info.info); |
| 1940 | else if (learned && !removing) |
| 1941 | call_switchdev_notifiers(SWITCHDEV_FDB_ADD, |
| 1942 | lw->ofdpa_port->dev, &info.info); |
| 1943 | rtnl_unlock(); |
| 1944 | |
| 1945 | ofdpa_kfree(lw->trans, work); |
| 1946 | } |
| 1947 | |
| 1948 | static int ofdpa_port_fdb_learn(struct ofdpa_port *ofdpa_port, |
| 1949 | struct switchdev_trans *trans, int flags, |
| 1950 | const u8 *addr, __be16 vlan_id) |
| 1951 | { |
| 1952 | struct ofdpa_fdb_learn_work *lw; |
| 1953 | enum rocker_of_dpa_table_id goto_tbl = |
| 1954 | ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; |
| 1955 | u32 out_pport = ofdpa_port->pport; |
| 1956 | u32 tunnel_id = 0; |
| 1957 | u32 group_id = ROCKER_GROUP_NONE; |
| 1958 | bool syncing = !!(ofdpa_port->brport_flags & BR_LEARNING_SYNC); |
| 1959 | bool copy_to_cpu = false; |
| 1960 | int err; |
| 1961 | |
| 1962 | if (ofdpa_port_is_bridged(ofdpa_port)) |
| 1963 | group_id = ROCKER_GROUP_L2_INTERFACE(vlan_id, out_pport); |
| 1964 | |
| 1965 | if (!(flags & OFDPA_OP_FLAG_REFRESH)) { |
| 1966 | err = ofdpa_flow_tbl_bridge(ofdpa_port, trans, flags, addr, |
| 1967 | NULL, vlan_id, tunnel_id, goto_tbl, |
| 1968 | group_id, copy_to_cpu); |
| 1969 | if (err) |
| 1970 | return err; |
| 1971 | } |
| 1972 | |
| 1973 | if (!syncing) |
| 1974 | return 0; |
| 1975 | |
| 1976 | if (!ofdpa_port_is_bridged(ofdpa_port)) |
| 1977 | return 0; |
| 1978 | |
| 1979 | lw = ofdpa_kzalloc(trans, flags, sizeof(*lw)); |
| 1980 | if (!lw) |
| 1981 | return -ENOMEM; |
| 1982 | |
| 1983 | INIT_WORK(&lw->work, ofdpa_port_fdb_learn_work); |
| 1984 | |
| 1985 | lw->ofdpa_port = ofdpa_port; |
| 1986 | lw->trans = trans; |
| 1987 | lw->flags = flags; |
| 1988 | ether_addr_copy(lw->addr, addr); |
| 1989 | lw->vid = ofdpa_port_vlan_to_vid(ofdpa_port, vlan_id); |
| 1990 | |
| 1991 | if (switchdev_trans_ph_prepare(trans)) |
| 1992 | ofdpa_kfree(trans, lw); |
| 1993 | else |
| 1994 | schedule_work(&lw->work); |
| 1995 | |
| 1996 | return 0; |
| 1997 | } |
| 1998 | |
| 1999 | static struct ofdpa_fdb_tbl_entry * |
| 2000 | ofdpa_fdb_tbl_find(const struct ofdpa *ofdpa, |
| 2001 | const struct ofdpa_fdb_tbl_entry *match) |
| 2002 | { |
| 2003 | struct ofdpa_fdb_tbl_entry *found; |
| 2004 | |
| 2005 | hash_for_each_possible(ofdpa->fdb_tbl, found, entry, match->key_crc32) |
| 2006 | if (memcmp(&found->key, &match->key, sizeof(found->key)) == 0) |
| 2007 | return found; |
| 2008 | |
| 2009 | return NULL; |
| 2010 | } |
| 2011 | |
| 2012 | static int ofdpa_port_fdb(struct ofdpa_port *ofdpa_port, |
| 2013 | struct switchdev_trans *trans, |
| 2014 | const unsigned char *addr, |
| 2015 | __be16 vlan_id, int flags) |
| 2016 | { |
| 2017 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; |
| 2018 | struct ofdpa_fdb_tbl_entry *fdb; |
| 2019 | struct ofdpa_fdb_tbl_entry *found; |
| 2020 | bool removing = (flags & OFDPA_OP_FLAG_REMOVE); |
| 2021 | unsigned long lock_flags; |
| 2022 | |
| 2023 | fdb = ofdpa_kzalloc(trans, flags, sizeof(*fdb)); |
| 2024 | if (!fdb) |
| 2025 | return -ENOMEM; |
| 2026 | |
| 2027 | fdb->learned = (flags & OFDPA_OP_FLAG_LEARNED); |
| 2028 | fdb->touched = jiffies; |
| 2029 | fdb->key.ofdpa_port = ofdpa_port; |
| 2030 | ether_addr_copy(fdb->key.addr, addr); |
| 2031 | fdb->key.vlan_id = vlan_id; |
| 2032 | fdb->key_crc32 = crc32(~0, &fdb->key, sizeof(fdb->key)); |
| 2033 | |
| 2034 | spin_lock_irqsave(&ofdpa->fdb_tbl_lock, lock_flags); |
| 2035 | |
| 2036 | found = ofdpa_fdb_tbl_find(ofdpa, fdb); |
| 2037 | |
| 2038 | if (found) { |
| 2039 | found->touched = jiffies; |
| 2040 | if (removing) { |
| 2041 | ofdpa_kfree(trans, fdb); |
| 2042 | if (!switchdev_trans_ph_prepare(trans)) |
| 2043 | hash_del(&found->entry); |
| 2044 | } |
| 2045 | } else if (!removing) { |
| 2046 | if (!switchdev_trans_ph_prepare(trans)) |
| 2047 | hash_add(ofdpa->fdb_tbl, &fdb->entry, |
| 2048 | fdb->key_crc32); |
| 2049 | } |
| 2050 | |
| 2051 | spin_unlock_irqrestore(&ofdpa->fdb_tbl_lock, lock_flags); |
| 2052 | |
| 2053 | /* Check if adding and already exists, or removing and can't find */ |
| 2054 | if (!found != !removing) { |
| 2055 | ofdpa_kfree(trans, fdb); |
| 2056 | if (!found && removing) |
| 2057 | return 0; |
| 2058 | /* Refreshing existing to update aging timers */ |
| 2059 | flags |= OFDPA_OP_FLAG_REFRESH; |
| 2060 | } |
| 2061 | |
| 2062 | return ofdpa_port_fdb_learn(ofdpa_port, trans, flags, addr, vlan_id); |
| 2063 | } |
| 2064 | |
| 2065 | static int ofdpa_port_fdb_flush(struct ofdpa_port *ofdpa_port, |
| 2066 | struct switchdev_trans *trans, int flags) |
| 2067 | { |
| 2068 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; |
| 2069 | struct ofdpa_fdb_tbl_entry *found; |
| 2070 | unsigned long lock_flags; |
| 2071 | struct hlist_node *tmp; |
| 2072 | int bkt; |
| 2073 | int err = 0; |
| 2074 | |
| 2075 | if (ofdpa_port->stp_state == BR_STATE_LEARNING || |
| 2076 | ofdpa_port->stp_state == BR_STATE_FORWARDING) |
| 2077 | return 0; |
| 2078 | |
| 2079 | flags |= OFDPA_OP_FLAG_NOWAIT | OFDPA_OP_FLAG_REMOVE; |
| 2080 | |
| 2081 | spin_lock_irqsave(&ofdpa->fdb_tbl_lock, lock_flags); |
| 2082 | |
| 2083 | hash_for_each_safe(ofdpa->fdb_tbl, bkt, tmp, found, entry) { |
| 2084 | if (found->key.ofdpa_port != ofdpa_port) |
| 2085 | continue; |
| 2086 | if (!found->learned) |
| 2087 | continue; |
| 2088 | err = ofdpa_port_fdb_learn(ofdpa_port, trans, flags, |
| 2089 | found->key.addr, |
| 2090 | found->key.vlan_id); |
| 2091 | if (err) |
| 2092 | goto err_out; |
| 2093 | if (!switchdev_trans_ph_prepare(trans)) |
| 2094 | hash_del(&found->entry); |
| 2095 | } |
| 2096 | |
| 2097 | err_out: |
| 2098 | spin_unlock_irqrestore(&ofdpa->fdb_tbl_lock, lock_flags); |
| 2099 | |
| 2100 | return err; |
| 2101 | } |
| 2102 | |
| 2103 | static void ofdpa_fdb_cleanup(unsigned long data) |
| 2104 | { |
| 2105 | struct ofdpa *ofdpa = (struct ofdpa *)data; |
| 2106 | struct ofdpa_port *ofdpa_port; |
| 2107 | struct ofdpa_fdb_tbl_entry *entry; |
| 2108 | struct hlist_node *tmp; |
Jiri Pirko | 3a8befc | 2016-03-12 12:03:27 +0100 | [diff] [blame] | 2109 | unsigned long next_timer = jiffies + ofdpa->ageing_time; |
Jiri Pirko | 3fbcdbf | 2016-02-16 15:14:50 +0100 | [diff] [blame] | 2110 | unsigned long expires; |
| 2111 | unsigned long lock_flags; |
| 2112 | int flags = OFDPA_OP_FLAG_NOWAIT | OFDPA_OP_FLAG_REMOVE | |
| 2113 | OFDPA_OP_FLAG_LEARNED; |
| 2114 | int bkt; |
| 2115 | |
| 2116 | spin_lock_irqsave(&ofdpa->fdb_tbl_lock, lock_flags); |
| 2117 | |
| 2118 | hash_for_each_safe(ofdpa->fdb_tbl, bkt, tmp, entry, entry) { |
| 2119 | if (!entry->learned) |
| 2120 | continue; |
| 2121 | ofdpa_port = entry->key.ofdpa_port; |
| 2122 | expires = entry->touched + ofdpa_port->ageing_time; |
| 2123 | if (time_before_eq(expires, jiffies)) { |
| 2124 | ofdpa_port_fdb_learn(ofdpa_port, NULL, |
| 2125 | flags, entry->key.addr, |
| 2126 | entry->key.vlan_id); |
| 2127 | hash_del(&entry->entry); |
| 2128 | } else if (time_before(expires, next_timer)) { |
| 2129 | next_timer = expires; |
| 2130 | } |
| 2131 | } |
| 2132 | |
| 2133 | spin_unlock_irqrestore(&ofdpa->fdb_tbl_lock, lock_flags); |
| 2134 | |
| 2135 | mod_timer(&ofdpa->fdb_cleanup_timer, round_jiffies_up(next_timer)); |
| 2136 | } |
| 2137 | |
| 2138 | static int ofdpa_port_router_mac(struct ofdpa_port *ofdpa_port, |
| 2139 | struct switchdev_trans *trans, int flags, |
| 2140 | __be16 vlan_id) |
| 2141 | { |
| 2142 | u32 in_pport_mask = 0xffffffff; |
| 2143 | __be16 eth_type; |
| 2144 | const u8 *dst_mac_mask = ff_mac; |
| 2145 | __be16 vlan_id_mask = htons(0xffff); |
| 2146 | bool copy_to_cpu = false; |
| 2147 | int err; |
| 2148 | |
| 2149 | if (ntohs(vlan_id) == 0) |
| 2150 | vlan_id = ofdpa_port->internal_vlan_id; |
| 2151 | |
| 2152 | eth_type = htons(ETH_P_IP); |
| 2153 | err = ofdpa_flow_tbl_term_mac(ofdpa_port, trans, |
| 2154 | ofdpa_port->pport, in_pport_mask, |
| 2155 | eth_type, ofdpa_port->dev->dev_addr, |
| 2156 | dst_mac_mask, vlan_id, vlan_id_mask, |
| 2157 | copy_to_cpu, flags); |
| 2158 | if (err) |
| 2159 | return err; |
| 2160 | |
| 2161 | eth_type = htons(ETH_P_IPV6); |
| 2162 | err = ofdpa_flow_tbl_term_mac(ofdpa_port, trans, |
| 2163 | ofdpa_port->pport, in_pport_mask, |
| 2164 | eth_type, ofdpa_port->dev->dev_addr, |
| 2165 | dst_mac_mask, vlan_id, vlan_id_mask, |
| 2166 | copy_to_cpu, flags); |
| 2167 | |
| 2168 | return err; |
| 2169 | } |
| 2170 | |
| 2171 | static int ofdpa_port_fwding(struct ofdpa_port *ofdpa_port, |
| 2172 | struct switchdev_trans *trans, int flags) |
| 2173 | { |
| 2174 | bool pop_vlan; |
| 2175 | u32 out_pport; |
| 2176 | __be16 vlan_id; |
| 2177 | u16 vid; |
| 2178 | int err; |
| 2179 | |
| 2180 | /* Port will be forwarding-enabled if its STP state is LEARNING |
| 2181 | * or FORWARDING. Traffic from CPU can still egress, regardless of |
| 2182 | * port STP state. Use L2 interface group on port VLANs as a way |
| 2183 | * to toggle port forwarding: if forwarding is disabled, L2 |
| 2184 | * interface group will not exist. |
| 2185 | */ |
| 2186 | |
| 2187 | if (ofdpa_port->stp_state != BR_STATE_LEARNING && |
| 2188 | ofdpa_port->stp_state != BR_STATE_FORWARDING) |
| 2189 | flags |= OFDPA_OP_FLAG_REMOVE; |
| 2190 | |
| 2191 | out_pport = ofdpa_port->pport; |
| 2192 | for (vid = 1; vid < VLAN_N_VID; vid++) { |
| 2193 | if (!test_bit(vid, ofdpa_port->vlan_bitmap)) |
| 2194 | continue; |
| 2195 | vlan_id = htons(vid); |
| 2196 | pop_vlan = ofdpa_vlan_id_is_internal(vlan_id); |
| 2197 | err = ofdpa_group_l2_interface(ofdpa_port, trans, flags, |
| 2198 | vlan_id, out_pport, pop_vlan); |
| 2199 | if (err) { |
| 2200 | netdev_err(ofdpa_port->dev, "Error (%d) port VLAN l2 group for pport %d\n", |
| 2201 | err, out_pport); |
| 2202 | return err; |
| 2203 | } |
| 2204 | } |
| 2205 | |
| 2206 | return 0; |
| 2207 | } |
| 2208 | |
| 2209 | static int ofdpa_port_stp_update(struct ofdpa_port *ofdpa_port, |
| 2210 | struct switchdev_trans *trans, |
| 2211 | int flags, u8 state) |
| 2212 | { |
| 2213 | bool want[OFDPA_CTRL_MAX] = { 0, }; |
| 2214 | bool prev_ctrls[OFDPA_CTRL_MAX]; |
| 2215 | u8 uninitialized_var(prev_state); |
| 2216 | int err; |
| 2217 | int i; |
| 2218 | |
| 2219 | if (switchdev_trans_ph_prepare(trans)) { |
| 2220 | memcpy(prev_ctrls, ofdpa_port->ctrls, sizeof(prev_ctrls)); |
| 2221 | prev_state = ofdpa_port->stp_state; |
| 2222 | } |
| 2223 | |
| 2224 | if (ofdpa_port->stp_state == state) |
| 2225 | return 0; |
| 2226 | |
| 2227 | ofdpa_port->stp_state = state; |
| 2228 | |
| 2229 | switch (state) { |
| 2230 | case BR_STATE_DISABLED: |
| 2231 | /* port is completely disabled */ |
| 2232 | break; |
| 2233 | case BR_STATE_LISTENING: |
| 2234 | case BR_STATE_BLOCKING: |
| 2235 | want[OFDPA_CTRL_LINK_LOCAL_MCAST] = true; |
| 2236 | break; |
| 2237 | case BR_STATE_LEARNING: |
| 2238 | case BR_STATE_FORWARDING: |
| 2239 | if (!ofdpa_port_is_ovsed(ofdpa_port)) |
| 2240 | want[OFDPA_CTRL_LINK_LOCAL_MCAST] = true; |
| 2241 | want[OFDPA_CTRL_IPV4_MCAST] = true; |
| 2242 | want[OFDPA_CTRL_IPV6_MCAST] = true; |
| 2243 | if (ofdpa_port_is_bridged(ofdpa_port)) |
| 2244 | want[OFDPA_CTRL_DFLT_BRIDGING] = true; |
| 2245 | else if (ofdpa_port_is_ovsed(ofdpa_port)) |
| 2246 | want[OFDPA_CTRL_DFLT_OVS] = true; |
| 2247 | else |
| 2248 | want[OFDPA_CTRL_LOCAL_ARP] = true; |
| 2249 | break; |
| 2250 | } |
| 2251 | |
| 2252 | for (i = 0; i < OFDPA_CTRL_MAX; i++) { |
| 2253 | if (want[i] != ofdpa_port->ctrls[i]) { |
| 2254 | int ctrl_flags = flags | |
| 2255 | (want[i] ? 0 : OFDPA_OP_FLAG_REMOVE); |
| 2256 | err = ofdpa_port_ctrl(ofdpa_port, trans, ctrl_flags, |
| 2257 | &ofdpa_ctrls[i]); |
| 2258 | if (err) |
| 2259 | goto err_out; |
| 2260 | ofdpa_port->ctrls[i] = want[i]; |
| 2261 | } |
| 2262 | } |
| 2263 | |
| 2264 | err = ofdpa_port_fdb_flush(ofdpa_port, trans, flags); |
| 2265 | if (err) |
| 2266 | goto err_out; |
| 2267 | |
| 2268 | err = ofdpa_port_fwding(ofdpa_port, trans, flags); |
| 2269 | |
| 2270 | err_out: |
| 2271 | if (switchdev_trans_ph_prepare(trans)) { |
| 2272 | memcpy(ofdpa_port->ctrls, prev_ctrls, sizeof(prev_ctrls)); |
| 2273 | ofdpa_port->stp_state = prev_state; |
| 2274 | } |
| 2275 | |
| 2276 | return err; |
| 2277 | } |
| 2278 | |
| 2279 | static int ofdpa_port_fwd_enable(struct ofdpa_port *ofdpa_port, int flags) |
| 2280 | { |
| 2281 | if (ofdpa_port_is_bridged(ofdpa_port)) |
| 2282 | /* bridge STP will enable port */ |
| 2283 | return 0; |
| 2284 | |
| 2285 | /* port is not bridged, so simulate going to FORWARDING state */ |
| 2286 | return ofdpa_port_stp_update(ofdpa_port, NULL, flags, |
| 2287 | BR_STATE_FORWARDING); |
| 2288 | } |
| 2289 | |
| 2290 | static int ofdpa_port_fwd_disable(struct ofdpa_port *ofdpa_port, int flags) |
| 2291 | { |
| 2292 | if (ofdpa_port_is_bridged(ofdpa_port)) |
| 2293 | /* bridge STP will disable port */ |
| 2294 | return 0; |
| 2295 | |
| 2296 | /* port is not bridged, so simulate going to DISABLED state */ |
| 2297 | return ofdpa_port_stp_update(ofdpa_port, NULL, flags, |
| 2298 | BR_STATE_DISABLED); |
| 2299 | } |
| 2300 | |
| 2301 | static int ofdpa_port_vlan_add(struct ofdpa_port *ofdpa_port, |
| 2302 | struct switchdev_trans *trans, |
| 2303 | u16 vid, u16 flags) |
| 2304 | { |
| 2305 | int err; |
| 2306 | |
| 2307 | /* XXX deal with flags for PVID and untagged */ |
| 2308 | |
| 2309 | err = ofdpa_port_vlan(ofdpa_port, trans, 0, vid); |
| 2310 | if (err) |
| 2311 | return err; |
| 2312 | |
| 2313 | err = ofdpa_port_router_mac(ofdpa_port, trans, 0, htons(vid)); |
| 2314 | if (err) |
| 2315 | ofdpa_port_vlan(ofdpa_port, trans, |
| 2316 | OFDPA_OP_FLAG_REMOVE, vid); |
| 2317 | |
| 2318 | return err; |
| 2319 | } |
| 2320 | |
| 2321 | static int ofdpa_port_vlan_del(struct ofdpa_port *ofdpa_port, |
| 2322 | u16 vid, u16 flags) |
| 2323 | { |
| 2324 | int err; |
| 2325 | |
| 2326 | err = ofdpa_port_router_mac(ofdpa_port, NULL, |
| 2327 | OFDPA_OP_FLAG_REMOVE, htons(vid)); |
| 2328 | if (err) |
| 2329 | return err; |
| 2330 | |
| 2331 | return ofdpa_port_vlan(ofdpa_port, NULL, |
| 2332 | OFDPA_OP_FLAG_REMOVE, vid); |
| 2333 | } |
| 2334 | |
| 2335 | static struct ofdpa_internal_vlan_tbl_entry * |
| 2336 | ofdpa_internal_vlan_tbl_find(const struct ofdpa *ofdpa, int ifindex) |
| 2337 | { |
| 2338 | struct ofdpa_internal_vlan_tbl_entry *found; |
| 2339 | |
| 2340 | hash_for_each_possible(ofdpa->internal_vlan_tbl, found, |
| 2341 | entry, ifindex) { |
| 2342 | if (found->ifindex == ifindex) |
| 2343 | return found; |
| 2344 | } |
| 2345 | |
| 2346 | return NULL; |
| 2347 | } |
| 2348 | |
| 2349 | static __be16 ofdpa_port_internal_vlan_id_get(struct ofdpa_port *ofdpa_port, |
| 2350 | int ifindex) |
| 2351 | { |
| 2352 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; |
| 2353 | struct ofdpa_internal_vlan_tbl_entry *entry; |
| 2354 | struct ofdpa_internal_vlan_tbl_entry *found; |
| 2355 | unsigned long lock_flags; |
| 2356 | int i; |
| 2357 | |
| 2358 | entry = kzalloc(sizeof(*entry), GFP_KERNEL); |
| 2359 | if (!entry) |
| 2360 | return 0; |
| 2361 | |
| 2362 | entry->ifindex = ifindex; |
| 2363 | |
| 2364 | spin_lock_irqsave(&ofdpa->internal_vlan_tbl_lock, lock_flags); |
| 2365 | |
| 2366 | found = ofdpa_internal_vlan_tbl_find(ofdpa, ifindex); |
| 2367 | if (found) { |
| 2368 | kfree(entry); |
| 2369 | goto found; |
| 2370 | } |
| 2371 | |
| 2372 | found = entry; |
| 2373 | hash_add(ofdpa->internal_vlan_tbl, &found->entry, found->ifindex); |
| 2374 | |
| 2375 | for (i = 0; i < OFDPA_N_INTERNAL_VLANS; i++) { |
| 2376 | if (test_and_set_bit(i, ofdpa->internal_vlan_bitmap)) |
| 2377 | continue; |
| 2378 | found->vlan_id = htons(OFDPA_INTERNAL_VLAN_ID_BASE + i); |
| 2379 | goto found; |
| 2380 | } |
| 2381 | |
| 2382 | netdev_err(ofdpa_port->dev, "Out of internal VLAN IDs\n"); |
| 2383 | |
| 2384 | found: |
| 2385 | found->ref_count++; |
| 2386 | spin_unlock_irqrestore(&ofdpa->internal_vlan_tbl_lock, lock_flags); |
| 2387 | |
| 2388 | return found->vlan_id; |
| 2389 | } |
| 2390 | |
| 2391 | static int ofdpa_port_fib_ipv4(struct ofdpa_port *ofdpa_port, |
| 2392 | struct switchdev_trans *trans, __be32 dst, |
| 2393 | int dst_len, const struct fib_info *fi, |
| 2394 | u32 tb_id, int flags) |
| 2395 | { |
| 2396 | const struct fib_nh *nh; |
| 2397 | __be16 eth_type = htons(ETH_P_IP); |
| 2398 | __be32 dst_mask = inet_make_mask(dst_len); |
| 2399 | __be16 internal_vlan_id = ofdpa_port->internal_vlan_id; |
| 2400 | u32 priority = fi->fib_priority; |
| 2401 | enum rocker_of_dpa_table_id goto_tbl = |
| 2402 | ROCKER_OF_DPA_TABLE_ID_ACL_POLICY; |
| 2403 | u32 group_id; |
| 2404 | bool nh_on_port; |
| 2405 | bool has_gw; |
| 2406 | u32 index; |
| 2407 | int err; |
| 2408 | |
| 2409 | /* XXX support ECMP */ |
| 2410 | |
| 2411 | nh = fi->fib_nh; |
| 2412 | nh_on_port = (fi->fib_dev == ofdpa_port->dev); |
| 2413 | has_gw = !!nh->nh_gw; |
| 2414 | |
| 2415 | if (has_gw && nh_on_port) { |
| 2416 | err = ofdpa_port_ipv4_nh(ofdpa_port, trans, flags, |
| 2417 | nh->nh_gw, &index); |
| 2418 | if (err) |
| 2419 | return err; |
| 2420 | |
| 2421 | group_id = ROCKER_GROUP_L3_UNICAST(index); |
| 2422 | } else { |
| 2423 | /* Send to CPU for processing */ |
| 2424 | group_id = ROCKER_GROUP_L2_INTERFACE(internal_vlan_id, 0); |
| 2425 | } |
| 2426 | |
| 2427 | err = ofdpa_flow_tbl_ucast4_routing(ofdpa_port, trans, eth_type, dst, |
| 2428 | dst_mask, priority, goto_tbl, |
| 2429 | group_id, flags); |
| 2430 | if (err) |
| 2431 | netdev_err(ofdpa_port->dev, "Error (%d) IPv4 route %pI4\n", |
| 2432 | err, &dst); |
| 2433 | |
| 2434 | return err; |
| 2435 | } |
| 2436 | |
| 2437 | static void |
| 2438 | ofdpa_port_internal_vlan_id_put(const struct ofdpa_port *ofdpa_port, |
| 2439 | int ifindex) |
| 2440 | { |
| 2441 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; |
| 2442 | struct ofdpa_internal_vlan_tbl_entry *found; |
| 2443 | unsigned long lock_flags; |
| 2444 | unsigned long bit; |
| 2445 | |
| 2446 | spin_lock_irqsave(&ofdpa->internal_vlan_tbl_lock, lock_flags); |
| 2447 | |
| 2448 | found = ofdpa_internal_vlan_tbl_find(ofdpa, ifindex); |
| 2449 | if (!found) { |
| 2450 | netdev_err(ofdpa_port->dev, |
| 2451 | "ifindex (%d) not found in internal VLAN tbl\n", |
| 2452 | ifindex); |
| 2453 | goto not_found; |
| 2454 | } |
| 2455 | |
| 2456 | if (--found->ref_count <= 0) { |
| 2457 | bit = ntohs(found->vlan_id) - OFDPA_INTERNAL_VLAN_ID_BASE; |
| 2458 | clear_bit(bit, ofdpa->internal_vlan_bitmap); |
| 2459 | hash_del(&found->entry); |
| 2460 | kfree(found); |
| 2461 | } |
| 2462 | |
| 2463 | not_found: |
| 2464 | spin_unlock_irqrestore(&ofdpa->internal_vlan_tbl_lock, lock_flags); |
| 2465 | } |
| 2466 | |
| 2467 | /********************************** |
| 2468 | * Rocker world ops implementation |
| 2469 | **********************************/ |
| 2470 | |
| 2471 | static int ofdpa_init(struct rocker *rocker) |
| 2472 | { |
| 2473 | struct ofdpa *ofdpa = rocker->wpriv; |
| 2474 | |
| 2475 | ofdpa->rocker = rocker; |
| 2476 | |
| 2477 | hash_init(ofdpa->flow_tbl); |
| 2478 | spin_lock_init(&ofdpa->flow_tbl_lock); |
| 2479 | |
| 2480 | hash_init(ofdpa->group_tbl); |
| 2481 | spin_lock_init(&ofdpa->group_tbl_lock); |
| 2482 | |
| 2483 | hash_init(ofdpa->fdb_tbl); |
| 2484 | spin_lock_init(&ofdpa->fdb_tbl_lock); |
| 2485 | |
| 2486 | hash_init(ofdpa->internal_vlan_tbl); |
| 2487 | spin_lock_init(&ofdpa->internal_vlan_tbl_lock); |
| 2488 | |
| 2489 | hash_init(ofdpa->neigh_tbl); |
| 2490 | spin_lock_init(&ofdpa->neigh_tbl_lock); |
| 2491 | |
| 2492 | setup_timer(&ofdpa->fdb_cleanup_timer, ofdpa_fdb_cleanup, |
| 2493 | (unsigned long) ofdpa); |
| 2494 | mod_timer(&ofdpa->fdb_cleanup_timer, jiffies); |
| 2495 | |
Jiri Pirko | 3a8befc | 2016-03-12 12:03:27 +0100 | [diff] [blame] | 2496 | ofdpa->ageing_time = BR_DEFAULT_AGEING_TIME; |
| 2497 | |
Jiri Pirko | 3fbcdbf | 2016-02-16 15:14:50 +0100 | [diff] [blame] | 2498 | return 0; |
| 2499 | } |
| 2500 | |
| 2501 | static void ofdpa_fini(struct rocker *rocker) |
| 2502 | { |
| 2503 | struct ofdpa *ofdpa = rocker->wpriv; |
| 2504 | |
| 2505 | unsigned long flags; |
| 2506 | struct ofdpa_flow_tbl_entry *flow_entry; |
| 2507 | struct ofdpa_group_tbl_entry *group_entry; |
| 2508 | struct ofdpa_fdb_tbl_entry *fdb_entry; |
| 2509 | struct ofdpa_internal_vlan_tbl_entry *internal_vlan_entry; |
| 2510 | struct ofdpa_neigh_tbl_entry *neigh_entry; |
| 2511 | struct hlist_node *tmp; |
| 2512 | int bkt; |
| 2513 | |
| 2514 | del_timer_sync(&ofdpa->fdb_cleanup_timer); |
| 2515 | |
| 2516 | spin_lock_irqsave(&ofdpa->flow_tbl_lock, flags); |
| 2517 | hash_for_each_safe(ofdpa->flow_tbl, bkt, tmp, flow_entry, entry) |
| 2518 | hash_del(&flow_entry->entry); |
| 2519 | spin_unlock_irqrestore(&ofdpa->flow_tbl_lock, flags); |
| 2520 | |
| 2521 | spin_lock_irqsave(&ofdpa->group_tbl_lock, flags); |
| 2522 | hash_for_each_safe(ofdpa->group_tbl, bkt, tmp, group_entry, entry) |
| 2523 | hash_del(&group_entry->entry); |
| 2524 | spin_unlock_irqrestore(&ofdpa->group_tbl_lock, flags); |
| 2525 | |
| 2526 | spin_lock_irqsave(&ofdpa->fdb_tbl_lock, flags); |
| 2527 | hash_for_each_safe(ofdpa->fdb_tbl, bkt, tmp, fdb_entry, entry) |
| 2528 | hash_del(&fdb_entry->entry); |
| 2529 | spin_unlock_irqrestore(&ofdpa->fdb_tbl_lock, flags); |
| 2530 | |
| 2531 | spin_lock_irqsave(&ofdpa->internal_vlan_tbl_lock, flags); |
| 2532 | hash_for_each_safe(ofdpa->internal_vlan_tbl, bkt, |
| 2533 | tmp, internal_vlan_entry, entry) |
| 2534 | hash_del(&internal_vlan_entry->entry); |
| 2535 | spin_unlock_irqrestore(&ofdpa->internal_vlan_tbl_lock, flags); |
| 2536 | |
| 2537 | spin_lock_irqsave(&ofdpa->neigh_tbl_lock, flags); |
| 2538 | hash_for_each_safe(ofdpa->neigh_tbl, bkt, tmp, neigh_entry, entry) |
| 2539 | hash_del(&neigh_entry->entry); |
| 2540 | spin_unlock_irqrestore(&ofdpa->neigh_tbl_lock, flags); |
| 2541 | } |
| 2542 | |
| 2543 | static int ofdpa_port_pre_init(struct rocker_port *rocker_port) |
| 2544 | { |
| 2545 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2546 | |
| 2547 | ofdpa_port->ofdpa = rocker_port->rocker->wpriv; |
| 2548 | ofdpa_port->rocker_port = rocker_port; |
| 2549 | ofdpa_port->dev = rocker_port->dev; |
| 2550 | ofdpa_port->pport = rocker_port->pport; |
| 2551 | ofdpa_port->brport_flags = BR_LEARNING | BR_LEARNING_SYNC; |
| 2552 | ofdpa_port->ageing_time = BR_DEFAULT_AGEING_TIME; |
| 2553 | return 0; |
| 2554 | } |
| 2555 | |
| 2556 | static int ofdpa_port_init(struct rocker_port *rocker_port) |
| 2557 | { |
| 2558 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2559 | int err; |
| 2560 | |
| 2561 | switchdev_port_fwd_mark_set(ofdpa_port->dev, NULL, false); |
| 2562 | rocker_port_set_learning(rocker_port, |
| 2563 | !!(ofdpa_port->brport_flags & BR_LEARNING)); |
| 2564 | |
| 2565 | err = ofdpa_port_ig_tbl(ofdpa_port, NULL, 0); |
| 2566 | if (err) { |
| 2567 | netdev_err(ofdpa_port->dev, "install ig port table failed\n"); |
| 2568 | return err; |
| 2569 | } |
| 2570 | |
| 2571 | ofdpa_port->internal_vlan_id = |
| 2572 | ofdpa_port_internal_vlan_id_get(ofdpa_port, |
| 2573 | ofdpa_port->dev->ifindex); |
| 2574 | |
| 2575 | err = ofdpa_port_vlan_add(ofdpa_port, NULL, OFDPA_UNTAGGED_VID, 0); |
| 2576 | if (err) { |
| 2577 | netdev_err(ofdpa_port->dev, "install untagged VLAN failed\n"); |
| 2578 | goto err_untagged_vlan; |
| 2579 | } |
| 2580 | return 0; |
| 2581 | |
| 2582 | err_untagged_vlan: |
| 2583 | ofdpa_port_ig_tbl(ofdpa_port, NULL, OFDPA_OP_FLAG_REMOVE); |
| 2584 | return err; |
| 2585 | } |
| 2586 | |
| 2587 | static void ofdpa_port_fini(struct rocker_port *rocker_port) |
| 2588 | { |
| 2589 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2590 | |
| 2591 | ofdpa_port_ig_tbl(ofdpa_port, NULL, OFDPA_OP_FLAG_REMOVE); |
| 2592 | } |
| 2593 | |
| 2594 | static int ofdpa_port_open(struct rocker_port *rocker_port) |
| 2595 | { |
| 2596 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2597 | |
| 2598 | return ofdpa_port_fwd_enable(ofdpa_port, 0); |
| 2599 | } |
| 2600 | |
| 2601 | static void ofdpa_port_stop(struct rocker_port *rocker_port) |
| 2602 | { |
| 2603 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2604 | |
| 2605 | ofdpa_port_fwd_disable(ofdpa_port, OFDPA_OP_FLAG_NOWAIT); |
| 2606 | } |
| 2607 | |
| 2608 | static int ofdpa_port_attr_stp_state_set(struct rocker_port *rocker_port, |
| 2609 | u8 state, |
| 2610 | struct switchdev_trans *trans) |
| 2611 | { |
| 2612 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2613 | |
| 2614 | return ofdpa_port_stp_update(ofdpa_port, trans, 0, state); |
| 2615 | } |
| 2616 | |
| 2617 | static int ofdpa_port_attr_bridge_flags_set(struct rocker_port *rocker_port, |
| 2618 | unsigned long brport_flags, |
| 2619 | struct switchdev_trans *trans) |
| 2620 | { |
| 2621 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2622 | unsigned long orig_flags; |
| 2623 | int err = 0; |
| 2624 | |
| 2625 | orig_flags = ofdpa_port->brport_flags; |
| 2626 | ofdpa_port->brport_flags = brport_flags; |
| 2627 | if ((orig_flags ^ ofdpa_port->brport_flags) & BR_LEARNING && |
| 2628 | !switchdev_trans_ph_prepare(trans)) |
| 2629 | err = rocker_port_set_learning(ofdpa_port->rocker_port, |
| 2630 | !!(ofdpa_port->brport_flags & BR_LEARNING)); |
| 2631 | |
| 2632 | if (switchdev_trans_ph_prepare(trans)) |
| 2633 | ofdpa_port->brport_flags = orig_flags; |
| 2634 | |
| 2635 | return err; |
| 2636 | } |
| 2637 | |
| 2638 | static int |
| 2639 | ofdpa_port_attr_bridge_flags_get(const struct rocker_port *rocker_port, |
| 2640 | unsigned long *p_brport_flags) |
| 2641 | { |
| 2642 | const struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2643 | |
| 2644 | *p_brport_flags = ofdpa_port->brport_flags; |
| 2645 | return 0; |
| 2646 | } |
| 2647 | |
| 2648 | static int |
| 2649 | ofdpa_port_attr_bridge_ageing_time_set(struct rocker_port *rocker_port, |
| 2650 | u32 ageing_time, |
| 2651 | struct switchdev_trans *trans) |
| 2652 | { |
| 2653 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
Jiri Pirko | 3a8befc | 2016-03-12 12:03:27 +0100 | [diff] [blame] | 2654 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; |
Jiri Pirko | 3fbcdbf | 2016-02-16 15:14:50 +0100 | [diff] [blame] | 2655 | |
| 2656 | if (!switchdev_trans_ph_prepare(trans)) { |
| 2657 | ofdpa_port->ageing_time = clock_t_to_jiffies(ageing_time); |
Jiri Pirko | 3a8befc | 2016-03-12 12:03:27 +0100 | [diff] [blame] | 2658 | if (ofdpa_port->ageing_time < ofdpa->ageing_time) |
| 2659 | ofdpa->ageing_time = ofdpa_port->ageing_time; |
Jiri Pirko | 3fbcdbf | 2016-02-16 15:14:50 +0100 | [diff] [blame] | 2660 | mod_timer(&ofdpa_port->ofdpa->fdb_cleanup_timer, jiffies); |
| 2661 | } |
| 2662 | |
| 2663 | return 0; |
| 2664 | } |
| 2665 | |
| 2666 | static int ofdpa_port_obj_vlan_add(struct rocker_port *rocker_port, |
| 2667 | const struct switchdev_obj_port_vlan *vlan, |
| 2668 | struct switchdev_trans *trans) |
| 2669 | { |
| 2670 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2671 | u16 vid; |
| 2672 | int err; |
| 2673 | |
| 2674 | for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) { |
| 2675 | err = ofdpa_port_vlan_add(ofdpa_port, trans, vid, vlan->flags); |
| 2676 | if (err) |
| 2677 | return err; |
| 2678 | } |
| 2679 | |
| 2680 | return 0; |
| 2681 | } |
| 2682 | |
| 2683 | static int ofdpa_port_obj_vlan_del(struct rocker_port *rocker_port, |
| 2684 | const struct switchdev_obj_port_vlan *vlan) |
| 2685 | { |
| 2686 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2687 | u16 vid; |
| 2688 | int err; |
| 2689 | |
| 2690 | for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) { |
| 2691 | err = ofdpa_port_vlan_del(ofdpa_port, vid, vlan->flags); |
| 2692 | if (err) |
| 2693 | return err; |
| 2694 | } |
| 2695 | |
| 2696 | return 0; |
| 2697 | } |
| 2698 | |
| 2699 | static int ofdpa_port_obj_vlan_dump(const struct rocker_port *rocker_port, |
| 2700 | struct switchdev_obj_port_vlan *vlan, |
| 2701 | switchdev_obj_dump_cb_t *cb) |
| 2702 | { |
| 2703 | const struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2704 | u16 vid; |
| 2705 | int err = 0; |
| 2706 | |
| 2707 | for (vid = 1; vid < VLAN_N_VID; vid++) { |
| 2708 | if (!test_bit(vid, ofdpa_port->vlan_bitmap)) |
| 2709 | continue; |
| 2710 | vlan->flags = 0; |
| 2711 | if (ofdpa_vlan_id_is_internal(htons(vid))) |
| 2712 | vlan->flags |= BRIDGE_VLAN_INFO_PVID; |
| 2713 | vlan->vid_begin = vlan->vid_end = vid; |
| 2714 | err = cb(&vlan->obj); |
| 2715 | if (err) |
| 2716 | break; |
| 2717 | } |
| 2718 | |
| 2719 | return err; |
| 2720 | } |
| 2721 | |
| 2722 | static int ofdpa_port_obj_fib4_add(struct rocker_port *rocker_port, |
| 2723 | const struct switchdev_obj_ipv4_fib *fib4, |
| 2724 | struct switchdev_trans *trans) |
| 2725 | { |
| 2726 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2727 | |
| 2728 | return ofdpa_port_fib_ipv4(ofdpa_port, trans, |
| 2729 | htonl(fib4->dst), fib4->dst_len, |
Jiri Pirko | da4ed55 | 2016-05-17 18:58:08 +0200 | [diff] [blame] | 2730 | fib4->fi, fib4->tb_id, 0); |
Jiri Pirko | 3fbcdbf | 2016-02-16 15:14:50 +0100 | [diff] [blame] | 2731 | } |
| 2732 | |
| 2733 | static int ofdpa_port_obj_fib4_del(struct rocker_port *rocker_port, |
| 2734 | const struct switchdev_obj_ipv4_fib *fib4) |
| 2735 | { |
| 2736 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2737 | |
| 2738 | return ofdpa_port_fib_ipv4(ofdpa_port, NULL, |
| 2739 | htonl(fib4->dst), fib4->dst_len, |
Jiri Pirko | da4ed55 | 2016-05-17 18:58:08 +0200 | [diff] [blame] | 2740 | fib4->fi, fib4->tb_id, |
Jiri Pirko | 3fbcdbf | 2016-02-16 15:14:50 +0100 | [diff] [blame] | 2741 | OFDPA_OP_FLAG_REMOVE); |
| 2742 | } |
| 2743 | |
| 2744 | static int ofdpa_port_obj_fdb_add(struct rocker_port *rocker_port, |
| 2745 | const struct switchdev_obj_port_fdb *fdb, |
| 2746 | struct switchdev_trans *trans) |
| 2747 | { |
| 2748 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2749 | __be16 vlan_id = ofdpa_port_vid_to_vlan(ofdpa_port, fdb->vid, NULL); |
| 2750 | |
| 2751 | if (!ofdpa_port_is_bridged(ofdpa_port)) |
| 2752 | return -EINVAL; |
| 2753 | |
| 2754 | return ofdpa_port_fdb(ofdpa_port, trans, fdb->addr, vlan_id, 0); |
| 2755 | } |
| 2756 | |
| 2757 | static int ofdpa_port_obj_fdb_del(struct rocker_port *rocker_port, |
| 2758 | const struct switchdev_obj_port_fdb *fdb) |
| 2759 | { |
| 2760 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2761 | __be16 vlan_id = ofdpa_port_vid_to_vlan(ofdpa_port, fdb->vid, NULL); |
| 2762 | int flags = OFDPA_OP_FLAG_REMOVE; |
| 2763 | |
| 2764 | if (!ofdpa_port_is_bridged(ofdpa_port)) |
| 2765 | return -EINVAL; |
| 2766 | |
| 2767 | return ofdpa_port_fdb(ofdpa_port, NULL, fdb->addr, vlan_id, flags); |
| 2768 | } |
| 2769 | |
| 2770 | static int ofdpa_port_obj_fdb_dump(const struct rocker_port *rocker_port, |
| 2771 | struct switchdev_obj_port_fdb *fdb, |
| 2772 | switchdev_obj_dump_cb_t *cb) |
| 2773 | { |
| 2774 | const struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2775 | struct ofdpa *ofdpa = ofdpa_port->ofdpa; |
| 2776 | struct ofdpa_fdb_tbl_entry *found; |
| 2777 | struct hlist_node *tmp; |
| 2778 | unsigned long lock_flags; |
| 2779 | int bkt; |
| 2780 | int err = 0; |
| 2781 | |
| 2782 | spin_lock_irqsave(&ofdpa->fdb_tbl_lock, lock_flags); |
| 2783 | hash_for_each_safe(ofdpa->fdb_tbl, bkt, tmp, found, entry) { |
| 2784 | if (found->key.ofdpa_port != ofdpa_port) |
| 2785 | continue; |
| 2786 | ether_addr_copy(fdb->addr, found->key.addr); |
| 2787 | fdb->ndm_state = NUD_REACHABLE; |
| 2788 | fdb->vid = ofdpa_port_vlan_to_vid(ofdpa_port, |
| 2789 | found->key.vlan_id); |
| 2790 | err = cb(&fdb->obj); |
| 2791 | if (err) |
| 2792 | break; |
| 2793 | } |
| 2794 | spin_unlock_irqrestore(&ofdpa->fdb_tbl_lock, lock_flags); |
| 2795 | |
| 2796 | return err; |
| 2797 | } |
| 2798 | |
| 2799 | static int ofdpa_port_bridge_join(struct ofdpa_port *ofdpa_port, |
| 2800 | struct net_device *bridge) |
| 2801 | { |
| 2802 | int err; |
| 2803 | |
| 2804 | /* Port is joining bridge, so the internal VLAN for the |
| 2805 | * port is going to change to the bridge internal VLAN. |
| 2806 | * Let's remove untagged VLAN (vid=0) from port and |
| 2807 | * re-add once internal VLAN has changed. |
| 2808 | */ |
| 2809 | |
| 2810 | err = ofdpa_port_vlan_del(ofdpa_port, OFDPA_UNTAGGED_VID, 0); |
| 2811 | if (err) |
| 2812 | return err; |
| 2813 | |
| 2814 | ofdpa_port_internal_vlan_id_put(ofdpa_port, |
| 2815 | ofdpa_port->dev->ifindex); |
| 2816 | ofdpa_port->internal_vlan_id = |
| 2817 | ofdpa_port_internal_vlan_id_get(ofdpa_port, bridge->ifindex); |
| 2818 | |
| 2819 | ofdpa_port->bridge_dev = bridge; |
| 2820 | switchdev_port_fwd_mark_set(ofdpa_port->dev, bridge, true); |
| 2821 | |
| 2822 | return ofdpa_port_vlan_add(ofdpa_port, NULL, OFDPA_UNTAGGED_VID, 0); |
| 2823 | } |
| 2824 | |
| 2825 | static int ofdpa_port_bridge_leave(struct ofdpa_port *ofdpa_port) |
| 2826 | { |
| 2827 | int err; |
| 2828 | |
| 2829 | err = ofdpa_port_vlan_del(ofdpa_port, OFDPA_UNTAGGED_VID, 0); |
| 2830 | if (err) |
| 2831 | return err; |
| 2832 | |
| 2833 | ofdpa_port_internal_vlan_id_put(ofdpa_port, |
| 2834 | ofdpa_port->bridge_dev->ifindex); |
| 2835 | ofdpa_port->internal_vlan_id = |
| 2836 | ofdpa_port_internal_vlan_id_get(ofdpa_port, |
| 2837 | ofdpa_port->dev->ifindex); |
| 2838 | |
| 2839 | switchdev_port_fwd_mark_set(ofdpa_port->dev, ofdpa_port->bridge_dev, |
| 2840 | false); |
| 2841 | ofdpa_port->bridge_dev = NULL; |
| 2842 | |
| 2843 | err = ofdpa_port_vlan_add(ofdpa_port, NULL, OFDPA_UNTAGGED_VID, 0); |
| 2844 | if (err) |
| 2845 | return err; |
| 2846 | |
| 2847 | if (ofdpa_port->dev->flags & IFF_UP) |
| 2848 | err = ofdpa_port_fwd_enable(ofdpa_port, 0); |
| 2849 | |
| 2850 | return err; |
| 2851 | } |
| 2852 | |
| 2853 | static int ofdpa_port_ovs_changed(struct ofdpa_port *ofdpa_port, |
| 2854 | struct net_device *master) |
| 2855 | { |
| 2856 | int err; |
| 2857 | |
| 2858 | ofdpa_port->bridge_dev = master; |
| 2859 | |
| 2860 | err = ofdpa_port_fwd_disable(ofdpa_port, 0); |
| 2861 | if (err) |
| 2862 | return err; |
| 2863 | err = ofdpa_port_fwd_enable(ofdpa_port, 0); |
| 2864 | |
| 2865 | return err; |
| 2866 | } |
| 2867 | |
| 2868 | static int ofdpa_port_master_linked(struct rocker_port *rocker_port, |
| 2869 | struct net_device *master) |
| 2870 | { |
| 2871 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2872 | int err = 0; |
| 2873 | |
| 2874 | if (netif_is_bridge_master(master)) |
| 2875 | err = ofdpa_port_bridge_join(ofdpa_port, master); |
| 2876 | else if (netif_is_ovs_master(master)) |
| 2877 | err = ofdpa_port_ovs_changed(ofdpa_port, master); |
| 2878 | return err; |
| 2879 | } |
| 2880 | |
| 2881 | static int ofdpa_port_master_unlinked(struct rocker_port *rocker_port, |
| 2882 | struct net_device *master) |
| 2883 | { |
| 2884 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2885 | int err = 0; |
| 2886 | |
| 2887 | if (ofdpa_port_is_bridged(ofdpa_port)) |
| 2888 | err = ofdpa_port_bridge_leave(ofdpa_port); |
| 2889 | else if (ofdpa_port_is_ovsed(ofdpa_port)) |
| 2890 | err = ofdpa_port_ovs_changed(ofdpa_port, NULL); |
| 2891 | return err; |
| 2892 | } |
| 2893 | |
| 2894 | static int ofdpa_port_neigh_update(struct rocker_port *rocker_port, |
| 2895 | struct neighbour *n) |
| 2896 | { |
| 2897 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2898 | int flags = (n->nud_state & NUD_VALID ? 0 : OFDPA_OP_FLAG_REMOVE) | |
| 2899 | OFDPA_OP_FLAG_NOWAIT; |
| 2900 | __be32 ip_addr = *(__be32 *) n->primary_key; |
| 2901 | |
| 2902 | return ofdpa_port_ipv4_neigh(ofdpa_port, NULL, flags, ip_addr, n->ha); |
| 2903 | } |
| 2904 | |
| 2905 | static int ofdpa_port_neigh_destroy(struct rocker_port *rocker_port, |
| 2906 | struct neighbour *n) |
| 2907 | { |
| 2908 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2909 | int flags = OFDPA_OP_FLAG_REMOVE | OFDPA_OP_FLAG_NOWAIT; |
| 2910 | __be32 ip_addr = *(__be32 *) n->primary_key; |
| 2911 | |
| 2912 | return ofdpa_port_ipv4_neigh(ofdpa_port, NULL, flags, ip_addr, n->ha); |
| 2913 | } |
| 2914 | |
| 2915 | static int ofdpa_port_ev_mac_vlan_seen(struct rocker_port *rocker_port, |
| 2916 | const unsigned char *addr, |
| 2917 | __be16 vlan_id) |
| 2918 | { |
| 2919 | struct ofdpa_port *ofdpa_port = rocker_port->wpriv; |
| 2920 | int flags = OFDPA_OP_FLAG_NOWAIT | OFDPA_OP_FLAG_LEARNED; |
| 2921 | |
| 2922 | if (ofdpa_port->stp_state != BR_STATE_LEARNING && |
| 2923 | ofdpa_port->stp_state != BR_STATE_FORWARDING) |
| 2924 | return 0; |
| 2925 | |
| 2926 | return ofdpa_port_fdb(ofdpa_port, NULL, addr, vlan_id, flags); |
| 2927 | } |
| 2928 | |
Jiri Pirko | e420114 | 2016-02-16 15:14:45 +0100 | [diff] [blame] | 2929 | struct rocker_world_ops rocker_ofdpa_ops = { |
| 2930 | .kind = "ofdpa", |
| 2931 | .priv_size = sizeof(struct ofdpa), |
| 2932 | .port_priv_size = sizeof(struct ofdpa_port), |
| 2933 | .mode = ROCKER_PORT_MODE_OF_DPA, |
Jiri Pirko | 3fbcdbf | 2016-02-16 15:14:50 +0100 | [diff] [blame] | 2934 | .init = ofdpa_init, |
| 2935 | .fini = ofdpa_fini, |
| 2936 | .port_pre_init = ofdpa_port_pre_init, |
| 2937 | .port_init = ofdpa_port_init, |
| 2938 | .port_fini = ofdpa_port_fini, |
| 2939 | .port_open = ofdpa_port_open, |
| 2940 | .port_stop = ofdpa_port_stop, |
| 2941 | .port_attr_stp_state_set = ofdpa_port_attr_stp_state_set, |
| 2942 | .port_attr_bridge_flags_set = ofdpa_port_attr_bridge_flags_set, |
| 2943 | .port_attr_bridge_flags_get = ofdpa_port_attr_bridge_flags_get, |
| 2944 | .port_attr_bridge_ageing_time_set = ofdpa_port_attr_bridge_ageing_time_set, |
| 2945 | .port_obj_vlan_add = ofdpa_port_obj_vlan_add, |
| 2946 | .port_obj_vlan_del = ofdpa_port_obj_vlan_del, |
| 2947 | .port_obj_vlan_dump = ofdpa_port_obj_vlan_dump, |
| 2948 | .port_obj_fib4_add = ofdpa_port_obj_fib4_add, |
| 2949 | .port_obj_fib4_del = ofdpa_port_obj_fib4_del, |
| 2950 | .port_obj_fdb_add = ofdpa_port_obj_fdb_add, |
| 2951 | .port_obj_fdb_del = ofdpa_port_obj_fdb_del, |
| 2952 | .port_obj_fdb_dump = ofdpa_port_obj_fdb_dump, |
| 2953 | .port_master_linked = ofdpa_port_master_linked, |
| 2954 | .port_master_unlinked = ofdpa_port_master_unlinked, |
| 2955 | .port_neigh_update = ofdpa_port_neigh_update, |
| 2956 | .port_neigh_destroy = ofdpa_port_neigh_destroy, |
| 2957 | .port_ev_mac_vlan_seen = ofdpa_port_ev_mac_vlan_seen, |
Jiri Pirko | e420114 | 2016-02-16 15:14:45 +0100 | [diff] [blame] | 2958 | }; |