1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 2 /* Copyright (c) 2015-2018 Mellanox Technologies. All rights reserved */ 3 4 #include <linux/kernel.h> 5 #include <linux/module.h> 6 #include <linux/types.h> 7 #include <linux/pci.h> 8 #include <linux/netdevice.h> 9 #include <linux/etherdevice.h> 10 #include <linux/ethtool.h> 11 #include <linux/slab.h> 12 #include <linux/device.h> 13 #include <linux/skbuff.h> 14 #include <linux/if_vlan.h> 15 #include <linux/if_bridge.h> 16 #include <linux/workqueue.h> 17 #include <linux/jiffies.h> 18 #include <linux/bitops.h> 19 #include <linux/list.h> 20 #include <linux/notifier.h> 21 #include <linux/dcbnl.h> 22 #include <linux/inetdevice.h> 23 #include <linux/netlink.h> 24 #include <linux/jhash.h> 25 #include <net/switchdev.h> 26 #include <net/pkt_cls.h> 27 #include <net/tc_act/tc_mirred.h> 28 #include <net/netevent.h> 29 #include <net/tc_act/tc_sample.h> 30 #include <net/addrconf.h> 31 32 #include "spectrum.h" 33 #include "pci.h" 34 #include "core.h" 35 #include "core_env.h" 36 #include "reg.h" 37 #include "port.h" 38 #include "trap.h" 39 #include "txheader.h" 40 #include "spectrum_cnt.h" 41 #include "spectrum_dpipe.h" 42 #include "spectrum_acl_flex_actions.h" 43 #include "spectrum_span.h" 44 #include "../mlxfw/mlxfw.h" 45 46 #define MLXSW_SP_FWREV_MINOR_TO_BRANCH(minor) ((minor) / 100) 47 48 #define MLXSW_SP1_FWREV_MAJOR 13 49 #define MLXSW_SP1_FWREV_MINOR 2000 50 #define MLXSW_SP1_FWREV_SUBMINOR 1122 51 #define MLXSW_SP1_FWREV_CAN_RESET_MINOR 1702 52 53 static const struct mlxsw_fw_rev mlxsw_sp1_fw_rev = { 54 .major = MLXSW_SP1_FWREV_MAJOR, 55 .minor = MLXSW_SP1_FWREV_MINOR, 56 .subminor = MLXSW_SP1_FWREV_SUBMINOR, 57 .can_reset_minor = MLXSW_SP1_FWREV_CAN_RESET_MINOR, 58 }; 59 60 #define MLXSW_SP1_FW_FILENAME \ 61 "mellanox/mlxsw_spectrum-" __stringify(MLXSW_SP1_FWREV_MAJOR) \ 62 "." __stringify(MLXSW_SP1_FWREV_MINOR) \ 63 "." __stringify(MLXSW_SP1_FWREV_SUBMINOR) ".mfa2" 64 65 static const char mlxsw_sp1_driver_name[] = "mlxsw_spectrum"; 66 static const char mlxsw_sp2_driver_name[] = "mlxsw_spectrum2"; 67 static const char mlxsw_sp_driver_version[] = "1.0"; 68 69 static const unsigned char mlxsw_sp1_mac_mask[ETH_ALEN] = { 70 0xff, 0xff, 0xff, 0xff, 0xfc, 0x00 71 }; 72 static const unsigned char mlxsw_sp2_mac_mask[ETH_ALEN] = { 73 0xff, 0xff, 0xff, 0xff, 0xf0, 0x00 74 }; 75 76 /* tx_hdr_version 77 * Tx header version. 78 * Must be set to 1. 79 */ 80 MLXSW_ITEM32(tx, hdr, version, 0x00, 28, 4); 81 82 /* tx_hdr_ctl 83 * Packet control type. 84 * 0 - Ethernet control (e.g. EMADs, LACP) 85 * 1 - Ethernet data 86 */ 87 MLXSW_ITEM32(tx, hdr, ctl, 0x00, 26, 2); 88 89 /* tx_hdr_proto 90 * Packet protocol type. Must be set to 1 (Ethernet). 91 */ 92 MLXSW_ITEM32(tx, hdr, proto, 0x00, 21, 3); 93 94 /* tx_hdr_rx_is_router 95 * Packet is sent from the router. Valid for data packets only. 96 */ 97 MLXSW_ITEM32(tx, hdr, rx_is_router, 0x00, 19, 1); 98 99 /* tx_hdr_fid_valid 100 * Indicates if the 'fid' field is valid and should be used for 101 * forwarding lookup. Valid for data packets only. 102 */ 103 MLXSW_ITEM32(tx, hdr, fid_valid, 0x00, 16, 1); 104 105 /* tx_hdr_swid 106 * Switch partition ID. Must be set to 0. 107 */ 108 MLXSW_ITEM32(tx, hdr, swid, 0x00, 12, 3); 109 110 /* tx_hdr_control_tclass 111 * Indicates if the packet should use the control TClass and not one 112 * of the data TClasses. 113 */ 114 MLXSW_ITEM32(tx, hdr, control_tclass, 0x00, 6, 1); 115 116 /* tx_hdr_etclass 117 * Egress TClass to be used on the egress device on the egress port. 118 */ 119 MLXSW_ITEM32(tx, hdr, etclass, 0x00, 0, 4); 120 121 /* tx_hdr_port_mid 122 * Destination local port for unicast packets. 123 * Destination multicast ID for multicast packets. 124 * 125 * Control packets are directed to a specific egress port, while data 126 * packets are transmitted through the CPU port (0) into the switch partition, 127 * where forwarding rules are applied. 128 */ 129 MLXSW_ITEM32(tx, hdr, port_mid, 0x04, 16, 16); 130 131 /* tx_hdr_fid 132 * Forwarding ID used for L2 forwarding lookup. Valid only if 'fid_valid' is 133 * set, otherwise calculated based on the packet's VID using VID to FID mapping. 134 * Valid for data packets only. 135 */ 136 MLXSW_ITEM32(tx, hdr, fid, 0x08, 0, 16); 137 138 /* tx_hdr_type 139 * 0 - Data packets 140 * 6 - Control packets 141 */ 142 MLXSW_ITEM32(tx, hdr, type, 0x0C, 0, 4); 143 144 struct mlxsw_sp_mlxfw_dev { 145 struct mlxfw_dev mlxfw_dev; 146 struct mlxsw_sp *mlxsw_sp; 147 }; 148 149 static int mlxsw_sp_component_query(struct mlxfw_dev *mlxfw_dev, 150 u16 component_index, u32 *p_max_size, 151 u8 *p_align_bits, u16 *p_max_write_size) 152 { 153 struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = 154 container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); 155 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; 156 char mcqi_pl[MLXSW_REG_MCQI_LEN]; 157 int err; 158 159 mlxsw_reg_mcqi_pack(mcqi_pl, component_index); 160 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mcqi), mcqi_pl); 161 if (err) 162 return err; 163 mlxsw_reg_mcqi_unpack(mcqi_pl, p_max_size, p_align_bits, 164 p_max_write_size); 165 166 *p_align_bits = max_t(u8, *p_align_bits, 2); 167 *p_max_write_size = min_t(u16, *p_max_write_size, 168 MLXSW_REG_MCDA_MAX_DATA_LEN); 169 return 0; 170 } 171 172 static int mlxsw_sp_fsm_lock(struct mlxfw_dev *mlxfw_dev, u32 *fwhandle) 173 { 174 struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = 175 container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); 176 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; 177 char mcc_pl[MLXSW_REG_MCC_LEN]; 178 u8 control_state; 179 int err; 180 181 mlxsw_reg_mcc_pack(mcc_pl, 0, 0, 0, 0); 182 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); 183 if (err) 184 return err; 185 186 mlxsw_reg_mcc_unpack(mcc_pl, fwhandle, NULL, &control_state); 187 if (control_state != MLXFW_FSM_STATE_IDLE) 188 return -EBUSY; 189 190 mlxsw_reg_mcc_pack(mcc_pl, 191 MLXSW_REG_MCC_INSTRUCTION_LOCK_UPDATE_HANDLE, 192 0, *fwhandle, 0); 193 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); 194 } 195 196 static int mlxsw_sp_fsm_component_update(struct mlxfw_dev *mlxfw_dev, 197 u32 fwhandle, u16 component_index, 198 u32 component_size) 199 { 200 struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = 201 container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); 202 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; 203 char mcc_pl[MLXSW_REG_MCC_LEN]; 204 205 mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_UPDATE_COMPONENT, 206 component_index, fwhandle, component_size); 207 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); 208 } 209 210 static int mlxsw_sp_fsm_block_download(struct mlxfw_dev *mlxfw_dev, 211 u32 fwhandle, u8 *data, u16 size, 212 u32 offset) 213 { 214 struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = 215 container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); 216 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; 217 char mcda_pl[MLXSW_REG_MCDA_LEN]; 218 219 mlxsw_reg_mcda_pack(mcda_pl, fwhandle, offset, size, data); 220 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcda), mcda_pl); 221 } 222 223 static int mlxsw_sp_fsm_component_verify(struct mlxfw_dev *mlxfw_dev, 224 u32 fwhandle, u16 component_index) 225 { 226 struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = 227 container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); 228 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; 229 char mcc_pl[MLXSW_REG_MCC_LEN]; 230 231 mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_VERIFY_COMPONENT, 232 component_index, fwhandle, 0); 233 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); 234 } 235 236 static int mlxsw_sp_fsm_activate(struct mlxfw_dev *mlxfw_dev, u32 fwhandle) 237 { 238 struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = 239 container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); 240 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; 241 char mcc_pl[MLXSW_REG_MCC_LEN]; 242 243 mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_ACTIVATE, 0, 244 fwhandle, 0); 245 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); 246 } 247 248 static int mlxsw_sp_fsm_query_state(struct mlxfw_dev *mlxfw_dev, u32 fwhandle, 249 enum mlxfw_fsm_state *fsm_state, 250 enum mlxfw_fsm_state_err *fsm_state_err) 251 { 252 struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = 253 container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); 254 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; 255 char mcc_pl[MLXSW_REG_MCC_LEN]; 256 u8 control_state; 257 u8 error_code; 258 int err; 259 260 mlxsw_reg_mcc_pack(mcc_pl, 0, 0, fwhandle, 0); 261 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); 262 if (err) 263 return err; 264 265 mlxsw_reg_mcc_unpack(mcc_pl, NULL, &error_code, &control_state); 266 *fsm_state = control_state; 267 *fsm_state_err = min_t(enum mlxfw_fsm_state_err, error_code, 268 MLXFW_FSM_STATE_ERR_MAX); 269 return 0; 270 } 271 272 static void mlxsw_sp_fsm_cancel(struct mlxfw_dev *mlxfw_dev, u32 fwhandle) 273 { 274 struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = 275 container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); 276 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; 277 char mcc_pl[MLXSW_REG_MCC_LEN]; 278 279 mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_CANCEL, 0, 280 fwhandle, 0); 281 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); 282 } 283 284 static void mlxsw_sp_fsm_release(struct mlxfw_dev *mlxfw_dev, u32 fwhandle) 285 { 286 struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev = 287 container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev); 288 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp; 289 char mcc_pl[MLXSW_REG_MCC_LEN]; 290 291 mlxsw_reg_mcc_pack(mcc_pl, 292 MLXSW_REG_MCC_INSTRUCTION_RELEASE_UPDATE_HANDLE, 0, 293 fwhandle, 0); 294 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl); 295 } 296 297 static const struct mlxfw_dev_ops mlxsw_sp_mlxfw_dev_ops = { 298 .component_query = mlxsw_sp_component_query, 299 .fsm_lock = mlxsw_sp_fsm_lock, 300 .fsm_component_update = mlxsw_sp_fsm_component_update, 301 .fsm_block_download = mlxsw_sp_fsm_block_download, 302 .fsm_component_verify = mlxsw_sp_fsm_component_verify, 303 .fsm_activate = mlxsw_sp_fsm_activate, 304 .fsm_query_state = mlxsw_sp_fsm_query_state, 305 .fsm_cancel = mlxsw_sp_fsm_cancel, 306 .fsm_release = mlxsw_sp_fsm_release 307 }; 308 309 static int mlxsw_sp_firmware_flash(struct mlxsw_sp *mlxsw_sp, 310 const struct firmware *firmware) 311 { 312 struct mlxsw_sp_mlxfw_dev mlxsw_sp_mlxfw_dev = { 313 .mlxfw_dev = { 314 .ops = &mlxsw_sp_mlxfw_dev_ops, 315 .psid = mlxsw_sp->bus_info->psid, 316 .psid_size = strlen(mlxsw_sp->bus_info->psid), 317 }, 318 .mlxsw_sp = mlxsw_sp 319 }; 320 int err; 321 322 mlxsw_core_fw_flash_start(mlxsw_sp->core); 323 err = mlxfw_firmware_flash(&mlxsw_sp_mlxfw_dev.mlxfw_dev, firmware); 324 mlxsw_core_fw_flash_end(mlxsw_sp->core); 325 326 return err; 327 } 328 329 static int mlxsw_sp_fw_rev_validate(struct mlxsw_sp *mlxsw_sp) 330 { 331 const struct mlxsw_fw_rev *rev = &mlxsw_sp->bus_info->fw_rev; 332 const struct mlxsw_fw_rev *req_rev = mlxsw_sp->req_rev; 333 const char *fw_filename = mlxsw_sp->fw_filename; 334 union devlink_param_value value; 335 const struct firmware *firmware; 336 int err; 337 338 /* Don't check if driver does not require it */ 339 if (!req_rev || !fw_filename) 340 return 0; 341 342 /* Don't check if devlink 'fw_load_policy' param is 'flash' */ 343 err = devlink_param_driverinit_value_get(priv_to_devlink(mlxsw_sp->core), 344 DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY, 345 &value); 346 if (err) 347 return err; 348 if (value.vu8 == DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_FLASH) 349 return 0; 350 351 /* Validate driver & FW are compatible */ 352 if (rev->major != req_rev->major) { 353 WARN(1, "Mismatch in major FW version [%d:%d] is never expected; Please contact support\n", 354 rev->major, req_rev->major); 355 return -EINVAL; 356 } 357 if (MLXSW_SP_FWREV_MINOR_TO_BRANCH(rev->minor) == 358 MLXSW_SP_FWREV_MINOR_TO_BRANCH(req_rev->minor) && 359 (rev->minor > req_rev->minor || 360 (rev->minor == req_rev->minor && 361 rev->subminor >= req_rev->subminor))) 362 return 0; 363 364 dev_info(mlxsw_sp->bus_info->dev, "The firmware version %d.%d.%d is incompatible with the driver\n", 365 rev->major, rev->minor, rev->subminor); 366 dev_info(mlxsw_sp->bus_info->dev, "Flashing firmware using file %s\n", 367 fw_filename); 368 369 err = request_firmware_direct(&firmware, fw_filename, 370 mlxsw_sp->bus_info->dev); 371 if (err) { 372 dev_err(mlxsw_sp->bus_info->dev, "Could not request firmware file %s\n", 373 fw_filename); 374 return err; 375 } 376 377 err = mlxsw_sp_firmware_flash(mlxsw_sp, firmware); 378 release_firmware(firmware); 379 if (err) 380 dev_err(mlxsw_sp->bus_info->dev, "Could not upgrade firmware\n"); 381 382 /* On FW flash success, tell the caller FW reset is needed 383 * if current FW supports it. 384 */ 385 if (rev->minor >= req_rev->can_reset_minor) 386 return err ? err : -EAGAIN; 387 else 388 return 0; 389 } 390 391 int mlxsw_sp_flow_counter_get(struct mlxsw_sp *mlxsw_sp, 392 unsigned int counter_index, u64 *packets, 393 u64 *bytes) 394 { 395 char mgpc_pl[MLXSW_REG_MGPC_LEN]; 396 int err; 397 398 mlxsw_reg_mgpc_pack(mgpc_pl, counter_index, MLXSW_REG_MGPC_OPCODE_NOP, 399 MLXSW_REG_FLOW_COUNTER_SET_TYPE_PACKETS_BYTES); 400 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mgpc), mgpc_pl); 401 if (err) 402 return err; 403 if (packets) 404 *packets = mlxsw_reg_mgpc_packet_counter_get(mgpc_pl); 405 if (bytes) 406 *bytes = mlxsw_reg_mgpc_byte_counter_get(mgpc_pl); 407 return 0; 408 } 409 410 static int mlxsw_sp_flow_counter_clear(struct mlxsw_sp *mlxsw_sp, 411 unsigned int counter_index) 412 { 413 char mgpc_pl[MLXSW_REG_MGPC_LEN]; 414 415 mlxsw_reg_mgpc_pack(mgpc_pl, counter_index, MLXSW_REG_MGPC_OPCODE_CLEAR, 416 MLXSW_REG_FLOW_COUNTER_SET_TYPE_PACKETS_BYTES); 417 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mgpc), mgpc_pl); 418 } 419 420 int mlxsw_sp_flow_counter_alloc(struct mlxsw_sp *mlxsw_sp, 421 unsigned int *p_counter_index) 422 { 423 int err; 424 425 err = mlxsw_sp_counter_alloc(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_FLOW, 426 p_counter_index); 427 if (err) 428 return err; 429 err = mlxsw_sp_flow_counter_clear(mlxsw_sp, *p_counter_index); 430 if (err) 431 goto err_counter_clear; 432 return 0; 433 434 err_counter_clear: 435 mlxsw_sp_counter_free(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_FLOW, 436 *p_counter_index); 437 return err; 438 } 439 440 void mlxsw_sp_flow_counter_free(struct mlxsw_sp *mlxsw_sp, 441 unsigned int counter_index) 442 { 443 mlxsw_sp_counter_free(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_FLOW, 444 counter_index); 445 } 446 447 static void mlxsw_sp_txhdr_construct(struct sk_buff *skb, 448 const struct mlxsw_tx_info *tx_info) 449 { 450 char *txhdr = skb_push(skb, MLXSW_TXHDR_LEN); 451 452 memset(txhdr, 0, MLXSW_TXHDR_LEN); 453 454 mlxsw_tx_hdr_version_set(txhdr, MLXSW_TXHDR_VERSION_1); 455 mlxsw_tx_hdr_ctl_set(txhdr, MLXSW_TXHDR_ETH_CTL); 456 mlxsw_tx_hdr_proto_set(txhdr, MLXSW_TXHDR_PROTO_ETH); 457 mlxsw_tx_hdr_swid_set(txhdr, 0); 458 mlxsw_tx_hdr_control_tclass_set(txhdr, 1); 459 mlxsw_tx_hdr_port_mid_set(txhdr, tx_info->local_port); 460 mlxsw_tx_hdr_type_set(txhdr, MLXSW_TXHDR_TYPE_CONTROL); 461 } 462 463 enum mlxsw_reg_spms_state mlxsw_sp_stp_spms_state(u8 state) 464 { 465 switch (state) { 466 case BR_STATE_FORWARDING: 467 return MLXSW_REG_SPMS_STATE_FORWARDING; 468 case BR_STATE_LEARNING: 469 return MLXSW_REG_SPMS_STATE_LEARNING; 470 case BR_STATE_LISTENING: /* fall-through */ 471 case BR_STATE_DISABLED: /* fall-through */ 472 case BR_STATE_BLOCKING: 473 return MLXSW_REG_SPMS_STATE_DISCARDING; 474 default: 475 BUG(); 476 } 477 } 478 479 int mlxsw_sp_port_vid_stp_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid, 480 u8 state) 481 { 482 enum mlxsw_reg_spms_state spms_state = mlxsw_sp_stp_spms_state(state); 483 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 484 char *spms_pl; 485 int err; 486 487 spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL); 488 if (!spms_pl) 489 return -ENOMEM; 490 mlxsw_reg_spms_pack(spms_pl, mlxsw_sp_port->local_port); 491 mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state); 492 493 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spms), spms_pl); 494 kfree(spms_pl); 495 return err; 496 } 497 498 static int mlxsw_sp_base_mac_get(struct mlxsw_sp *mlxsw_sp) 499 { 500 char spad_pl[MLXSW_REG_SPAD_LEN] = {0}; 501 int err; 502 503 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(spad), spad_pl); 504 if (err) 505 return err; 506 mlxsw_reg_spad_base_mac_memcpy_from(spad_pl, mlxsw_sp->base_mac); 507 return 0; 508 } 509 510 static int mlxsw_sp_port_sample_set(struct mlxsw_sp_port *mlxsw_sp_port, 511 bool enable, u32 rate) 512 { 513 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 514 char mpsc_pl[MLXSW_REG_MPSC_LEN]; 515 516 mlxsw_reg_mpsc_pack(mpsc_pl, mlxsw_sp_port->local_port, enable, rate); 517 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpsc), mpsc_pl); 518 } 519 520 static int mlxsw_sp_port_admin_status_set(struct mlxsw_sp_port *mlxsw_sp_port, 521 bool is_up) 522 { 523 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 524 char paos_pl[MLXSW_REG_PAOS_LEN]; 525 526 mlxsw_reg_paos_pack(paos_pl, mlxsw_sp_port->local_port, 527 is_up ? MLXSW_PORT_ADMIN_STATUS_UP : 528 MLXSW_PORT_ADMIN_STATUS_DOWN); 529 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(paos), paos_pl); 530 } 531 532 static int mlxsw_sp_port_dev_addr_set(struct mlxsw_sp_port *mlxsw_sp_port, 533 unsigned char *addr) 534 { 535 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 536 char ppad_pl[MLXSW_REG_PPAD_LEN]; 537 538 mlxsw_reg_ppad_pack(ppad_pl, true, mlxsw_sp_port->local_port); 539 mlxsw_reg_ppad_mac_memcpy_to(ppad_pl, addr); 540 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppad), ppad_pl); 541 } 542 543 static int mlxsw_sp_port_dev_addr_init(struct mlxsw_sp_port *mlxsw_sp_port) 544 { 545 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 546 unsigned char *addr = mlxsw_sp_port->dev->dev_addr; 547 548 ether_addr_copy(addr, mlxsw_sp->base_mac); 549 addr[ETH_ALEN - 1] += mlxsw_sp_port->local_port; 550 return mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr); 551 } 552 553 static int mlxsw_sp_port_mtu_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mtu) 554 { 555 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 556 char pmtu_pl[MLXSW_REG_PMTU_LEN]; 557 int max_mtu; 558 int err; 559 560 mtu += MLXSW_TXHDR_LEN + ETH_HLEN; 561 mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, 0); 562 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl); 563 if (err) 564 return err; 565 max_mtu = mlxsw_reg_pmtu_max_mtu_get(pmtu_pl); 566 567 if (mtu > max_mtu) 568 return -EINVAL; 569 570 mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, mtu); 571 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl); 572 } 573 574 static int mlxsw_sp_port_swid_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 swid) 575 { 576 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 577 char pspa_pl[MLXSW_REG_PSPA_LEN]; 578 579 mlxsw_reg_pspa_pack(pspa_pl, swid, mlxsw_sp_port->local_port); 580 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pspa), pspa_pl); 581 } 582 583 int mlxsw_sp_port_vp_mode_set(struct mlxsw_sp_port *mlxsw_sp_port, bool enable) 584 { 585 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 586 char svpe_pl[MLXSW_REG_SVPE_LEN]; 587 588 mlxsw_reg_svpe_pack(svpe_pl, mlxsw_sp_port->local_port, enable); 589 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svpe), svpe_pl); 590 } 591 592 int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid, 593 bool learn_enable) 594 { 595 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 596 char *spvmlr_pl; 597 int err; 598 599 spvmlr_pl = kmalloc(MLXSW_REG_SPVMLR_LEN, GFP_KERNEL); 600 if (!spvmlr_pl) 601 return -ENOMEM; 602 mlxsw_reg_spvmlr_pack(spvmlr_pl, mlxsw_sp_port->local_port, vid, vid, 603 learn_enable); 604 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvmlr), spvmlr_pl); 605 kfree(spvmlr_pl); 606 return err; 607 } 608 609 static int __mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, 610 u16 vid) 611 { 612 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 613 char spvid_pl[MLXSW_REG_SPVID_LEN]; 614 615 mlxsw_reg_spvid_pack(spvid_pl, mlxsw_sp_port->local_port, vid); 616 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvid), spvid_pl); 617 } 618 619 static int mlxsw_sp_port_allow_untagged_set(struct mlxsw_sp_port *mlxsw_sp_port, 620 bool allow) 621 { 622 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 623 char spaft_pl[MLXSW_REG_SPAFT_LEN]; 624 625 mlxsw_reg_spaft_pack(spaft_pl, mlxsw_sp_port->local_port, allow); 626 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spaft), spaft_pl); 627 } 628 629 int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid) 630 { 631 int err; 632 633 if (!vid) { 634 err = mlxsw_sp_port_allow_untagged_set(mlxsw_sp_port, false); 635 if (err) 636 return err; 637 } else { 638 err = __mlxsw_sp_port_pvid_set(mlxsw_sp_port, vid); 639 if (err) 640 return err; 641 err = mlxsw_sp_port_allow_untagged_set(mlxsw_sp_port, true); 642 if (err) 643 goto err_port_allow_untagged_set; 644 } 645 646 mlxsw_sp_port->pvid = vid; 647 return 0; 648 649 err_port_allow_untagged_set: 650 __mlxsw_sp_port_pvid_set(mlxsw_sp_port, mlxsw_sp_port->pvid); 651 return err; 652 } 653 654 static int 655 mlxsw_sp_port_system_port_mapping_set(struct mlxsw_sp_port *mlxsw_sp_port) 656 { 657 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 658 char sspr_pl[MLXSW_REG_SSPR_LEN]; 659 660 mlxsw_reg_sspr_pack(sspr_pl, mlxsw_sp_port->local_port); 661 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sspr), sspr_pl); 662 } 663 664 static int mlxsw_sp_port_module_info_get(struct mlxsw_sp *mlxsw_sp, 665 u8 local_port, u8 *p_module, 666 u8 *p_width, u8 *p_lane) 667 { 668 char pmlp_pl[MLXSW_REG_PMLP_LEN]; 669 int err; 670 671 mlxsw_reg_pmlp_pack(pmlp_pl, local_port); 672 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl); 673 if (err) 674 return err; 675 *p_module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0); 676 *p_width = mlxsw_reg_pmlp_width_get(pmlp_pl); 677 *p_lane = mlxsw_reg_pmlp_tx_lane_get(pmlp_pl, 0); 678 return 0; 679 } 680 681 static int mlxsw_sp_port_module_map(struct mlxsw_sp_port *mlxsw_sp_port, 682 u8 module, u8 width, u8 lane) 683 { 684 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 685 char pmlp_pl[MLXSW_REG_PMLP_LEN]; 686 int i; 687 688 mlxsw_reg_pmlp_pack(pmlp_pl, mlxsw_sp_port->local_port); 689 mlxsw_reg_pmlp_width_set(pmlp_pl, width); 690 for (i = 0; i < width; i++) { 691 mlxsw_reg_pmlp_module_set(pmlp_pl, i, module); 692 mlxsw_reg_pmlp_tx_lane_set(pmlp_pl, i, lane + i); /* Rx & Tx */ 693 } 694 695 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl); 696 } 697 698 static int mlxsw_sp_port_module_unmap(struct mlxsw_sp_port *mlxsw_sp_port) 699 { 700 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 701 char pmlp_pl[MLXSW_REG_PMLP_LEN]; 702 703 mlxsw_reg_pmlp_pack(pmlp_pl, mlxsw_sp_port->local_port); 704 mlxsw_reg_pmlp_width_set(pmlp_pl, 0); 705 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl); 706 } 707 708 static int mlxsw_sp_port_open(struct net_device *dev) 709 { 710 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 711 int err; 712 713 err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true); 714 if (err) 715 return err; 716 netif_start_queue(dev); 717 return 0; 718 } 719 720 static int mlxsw_sp_port_stop(struct net_device *dev) 721 { 722 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 723 724 netif_stop_queue(dev); 725 return mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false); 726 } 727 728 static netdev_tx_t mlxsw_sp_port_xmit(struct sk_buff *skb, 729 struct net_device *dev) 730 { 731 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 732 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 733 struct mlxsw_sp_port_pcpu_stats *pcpu_stats; 734 const struct mlxsw_tx_info tx_info = { 735 .local_port = mlxsw_sp_port->local_port, 736 .is_emad = false, 737 }; 738 u64 len; 739 int err; 740 741 if (mlxsw_core_skb_transmit_busy(mlxsw_sp->core, &tx_info)) 742 return NETDEV_TX_BUSY; 743 744 if (unlikely(skb_headroom(skb) < MLXSW_TXHDR_LEN)) { 745 struct sk_buff *skb_orig = skb; 746 747 skb = skb_realloc_headroom(skb, MLXSW_TXHDR_LEN); 748 if (!skb) { 749 this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped); 750 dev_kfree_skb_any(skb_orig); 751 return NETDEV_TX_OK; 752 } 753 dev_consume_skb_any(skb_orig); 754 } 755 756 if (eth_skb_pad(skb)) { 757 this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped); 758 return NETDEV_TX_OK; 759 } 760 761 mlxsw_sp_txhdr_construct(skb, &tx_info); 762 /* TX header is consumed by HW on the way so we shouldn't count its 763 * bytes as being sent. 764 */ 765 len = skb->len - MLXSW_TXHDR_LEN; 766 767 /* Due to a race we might fail here because of a full queue. In that 768 * unlikely case we simply drop the packet. 769 */ 770 err = mlxsw_core_skb_transmit(mlxsw_sp->core, skb, &tx_info); 771 772 if (!err) { 773 pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats); 774 u64_stats_update_begin(&pcpu_stats->syncp); 775 pcpu_stats->tx_packets++; 776 pcpu_stats->tx_bytes += len; 777 u64_stats_update_end(&pcpu_stats->syncp); 778 } else { 779 this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped); 780 dev_kfree_skb_any(skb); 781 } 782 return NETDEV_TX_OK; 783 } 784 785 static void mlxsw_sp_set_rx_mode(struct net_device *dev) 786 { 787 } 788 789 static int mlxsw_sp_port_set_mac_address(struct net_device *dev, void *p) 790 { 791 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 792 struct sockaddr *addr = p; 793 int err; 794 795 if (!is_valid_ether_addr(addr->sa_data)) 796 return -EADDRNOTAVAIL; 797 798 err = mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr->sa_data); 799 if (err) 800 return err; 801 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); 802 return 0; 803 } 804 805 static u16 mlxsw_sp_pg_buf_threshold_get(const struct mlxsw_sp *mlxsw_sp, 806 int mtu) 807 { 808 return 2 * mlxsw_sp_bytes_cells(mlxsw_sp, mtu); 809 } 810 811 #define MLXSW_SP_CELL_FACTOR 2 /* 2 * cell_size / (IPG + cell_size + 1) */ 812 813 static u16 mlxsw_sp_pfc_delay_get(const struct mlxsw_sp *mlxsw_sp, int mtu, 814 u16 delay) 815 { 816 delay = mlxsw_sp_bytes_cells(mlxsw_sp, DIV_ROUND_UP(delay, 817 BITS_PER_BYTE)); 818 return MLXSW_SP_CELL_FACTOR * delay + mlxsw_sp_bytes_cells(mlxsw_sp, 819 mtu); 820 } 821 822 /* Maximum delay buffer needed in case of PAUSE frames, in bytes. 823 * Assumes 100m cable and maximum MTU. 824 */ 825 #define MLXSW_SP_PAUSE_DELAY 58752 826 827 static u16 mlxsw_sp_pg_buf_delay_get(const struct mlxsw_sp *mlxsw_sp, int mtu, 828 u16 delay, bool pfc, bool pause) 829 { 830 if (pfc) 831 return mlxsw_sp_pfc_delay_get(mlxsw_sp, mtu, delay); 832 else if (pause) 833 return mlxsw_sp_bytes_cells(mlxsw_sp, MLXSW_SP_PAUSE_DELAY); 834 else 835 return 0; 836 } 837 838 static void mlxsw_sp_pg_buf_pack(char *pbmc_pl, int index, u16 size, u16 thres, 839 bool lossy) 840 { 841 if (lossy) 842 mlxsw_reg_pbmc_lossy_buffer_pack(pbmc_pl, index, size); 843 else 844 mlxsw_reg_pbmc_lossless_buffer_pack(pbmc_pl, index, size, 845 thres); 846 } 847 848 int __mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port, int mtu, 849 u8 *prio_tc, bool pause_en, 850 struct ieee_pfc *my_pfc) 851 { 852 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 853 u8 pfc_en = !!my_pfc ? my_pfc->pfc_en : 0; 854 u16 delay = !!my_pfc ? my_pfc->delay : 0; 855 char pbmc_pl[MLXSW_REG_PBMC_LEN]; 856 u32 taken_headroom_cells = 0; 857 u32 max_headroom_cells; 858 int i, j, err; 859 860 max_headroom_cells = mlxsw_sp_sb_max_headroom_cells(mlxsw_sp); 861 862 mlxsw_reg_pbmc_pack(pbmc_pl, mlxsw_sp_port->local_port, 0, 0); 863 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl); 864 if (err) 865 return err; 866 867 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { 868 bool configure = false; 869 bool pfc = false; 870 u16 thres_cells; 871 u16 delay_cells; 872 u16 total_cells; 873 bool lossy; 874 875 for (j = 0; j < IEEE_8021QAZ_MAX_TCS; j++) { 876 if (prio_tc[j] == i) { 877 pfc = pfc_en & BIT(j); 878 configure = true; 879 break; 880 } 881 } 882 883 if (!configure) 884 continue; 885 886 lossy = !(pfc || pause_en); 887 thres_cells = mlxsw_sp_pg_buf_threshold_get(mlxsw_sp, mtu); 888 delay_cells = mlxsw_sp_pg_buf_delay_get(mlxsw_sp, mtu, delay, 889 pfc, pause_en); 890 total_cells = thres_cells + delay_cells; 891 892 taken_headroom_cells += total_cells; 893 if (taken_headroom_cells > max_headroom_cells) 894 return -ENOBUFS; 895 896 mlxsw_sp_pg_buf_pack(pbmc_pl, i, total_cells, 897 thres_cells, lossy); 898 } 899 900 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl); 901 } 902 903 static int mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port, 904 int mtu, bool pause_en) 905 { 906 u8 def_prio_tc[IEEE_8021QAZ_MAX_TCS] = {0}; 907 bool dcb_en = !!mlxsw_sp_port->dcb.ets; 908 struct ieee_pfc *my_pfc; 909 u8 *prio_tc; 910 911 prio_tc = dcb_en ? mlxsw_sp_port->dcb.ets->prio_tc : def_prio_tc; 912 my_pfc = dcb_en ? mlxsw_sp_port->dcb.pfc : NULL; 913 914 return __mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, prio_tc, 915 pause_en, my_pfc); 916 } 917 918 static int mlxsw_sp_port_change_mtu(struct net_device *dev, int mtu) 919 { 920 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 921 bool pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port); 922 int err; 923 924 err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, pause_en); 925 if (err) 926 return err; 927 err = mlxsw_sp_span_port_mtu_update(mlxsw_sp_port, mtu); 928 if (err) 929 goto err_span_port_mtu_update; 930 err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, mtu); 931 if (err) 932 goto err_port_mtu_set; 933 dev->mtu = mtu; 934 return 0; 935 936 err_port_mtu_set: 937 mlxsw_sp_span_port_mtu_update(mlxsw_sp_port, dev->mtu); 938 err_span_port_mtu_update: 939 mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en); 940 return err; 941 } 942 943 static int 944 mlxsw_sp_port_get_sw_stats64(const struct net_device *dev, 945 struct rtnl_link_stats64 *stats) 946 { 947 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 948 struct mlxsw_sp_port_pcpu_stats *p; 949 u64 rx_packets, rx_bytes, tx_packets, tx_bytes; 950 u32 tx_dropped = 0; 951 unsigned int start; 952 int i; 953 954 for_each_possible_cpu(i) { 955 p = per_cpu_ptr(mlxsw_sp_port->pcpu_stats, i); 956 do { 957 start = u64_stats_fetch_begin_irq(&p->syncp); 958 rx_packets = p->rx_packets; 959 rx_bytes = p->rx_bytes; 960 tx_packets = p->tx_packets; 961 tx_bytes = p->tx_bytes; 962 } while (u64_stats_fetch_retry_irq(&p->syncp, start)); 963 964 stats->rx_packets += rx_packets; 965 stats->rx_bytes += rx_bytes; 966 stats->tx_packets += tx_packets; 967 stats->tx_bytes += tx_bytes; 968 /* tx_dropped is u32, updated without syncp protection. */ 969 tx_dropped += p->tx_dropped; 970 } 971 stats->tx_dropped = tx_dropped; 972 return 0; 973 } 974 975 static bool mlxsw_sp_port_has_offload_stats(const struct net_device *dev, int attr_id) 976 { 977 switch (attr_id) { 978 case IFLA_OFFLOAD_XSTATS_CPU_HIT: 979 return true; 980 } 981 982 return false; 983 } 984 985 static int mlxsw_sp_port_get_offload_stats(int attr_id, const struct net_device *dev, 986 void *sp) 987 { 988 switch (attr_id) { 989 case IFLA_OFFLOAD_XSTATS_CPU_HIT: 990 return mlxsw_sp_port_get_sw_stats64(dev, sp); 991 } 992 993 return -EINVAL; 994 } 995 996 static int mlxsw_sp_port_get_stats_raw(struct net_device *dev, int grp, 997 int prio, char *ppcnt_pl) 998 { 999 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 1000 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1001 1002 mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sp_port->local_port, grp, prio); 1003 return mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ppcnt), ppcnt_pl); 1004 } 1005 1006 static int mlxsw_sp_port_get_hw_stats(struct net_device *dev, 1007 struct rtnl_link_stats64 *stats) 1008 { 1009 char ppcnt_pl[MLXSW_REG_PPCNT_LEN]; 1010 int err; 1011 1012 err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_IEEE_8023_CNT, 1013 0, ppcnt_pl); 1014 if (err) 1015 goto out; 1016 1017 stats->tx_packets = 1018 mlxsw_reg_ppcnt_a_frames_transmitted_ok_get(ppcnt_pl); 1019 stats->rx_packets = 1020 mlxsw_reg_ppcnt_a_frames_received_ok_get(ppcnt_pl); 1021 stats->tx_bytes = 1022 mlxsw_reg_ppcnt_a_octets_transmitted_ok_get(ppcnt_pl); 1023 stats->rx_bytes = 1024 mlxsw_reg_ppcnt_a_octets_received_ok_get(ppcnt_pl); 1025 stats->multicast = 1026 mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get(ppcnt_pl); 1027 1028 stats->rx_crc_errors = 1029 mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get(ppcnt_pl); 1030 stats->rx_frame_errors = 1031 mlxsw_reg_ppcnt_a_alignment_errors_get(ppcnt_pl); 1032 1033 stats->rx_length_errors = ( 1034 mlxsw_reg_ppcnt_a_in_range_length_errors_get(ppcnt_pl) + 1035 mlxsw_reg_ppcnt_a_out_of_range_length_field_get(ppcnt_pl) + 1036 mlxsw_reg_ppcnt_a_frame_too_long_errors_get(ppcnt_pl)); 1037 1038 stats->rx_errors = (stats->rx_crc_errors + 1039 stats->rx_frame_errors + stats->rx_length_errors); 1040 1041 out: 1042 return err; 1043 } 1044 1045 static void 1046 mlxsw_sp_port_get_hw_xstats(struct net_device *dev, 1047 struct mlxsw_sp_port_xstats *xstats) 1048 { 1049 char ppcnt_pl[MLXSW_REG_PPCNT_LEN]; 1050 int err, i; 1051 1052 err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_EXT_CNT, 0, 1053 ppcnt_pl); 1054 if (!err) 1055 xstats->ecn = mlxsw_reg_ppcnt_ecn_marked_get(ppcnt_pl); 1056 1057 for (i = 0; i < TC_MAX_QUEUE; i++) { 1058 err = mlxsw_sp_port_get_stats_raw(dev, 1059 MLXSW_REG_PPCNT_TC_CONG_TC, 1060 i, ppcnt_pl); 1061 if (!err) 1062 xstats->wred_drop[i] = 1063 mlxsw_reg_ppcnt_wred_discard_get(ppcnt_pl); 1064 1065 err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_TC_CNT, 1066 i, ppcnt_pl); 1067 if (err) 1068 continue; 1069 1070 xstats->backlog[i] = 1071 mlxsw_reg_ppcnt_tc_transmit_queue_get(ppcnt_pl); 1072 xstats->tail_drop[i] = 1073 mlxsw_reg_ppcnt_tc_no_buffer_discard_uc_get(ppcnt_pl); 1074 } 1075 1076 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { 1077 err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_PRIO_CNT, 1078 i, ppcnt_pl); 1079 if (err) 1080 continue; 1081 1082 xstats->tx_packets[i] = mlxsw_reg_ppcnt_tx_frames_get(ppcnt_pl); 1083 xstats->tx_bytes[i] = mlxsw_reg_ppcnt_tx_octets_get(ppcnt_pl); 1084 } 1085 } 1086 1087 static void update_stats_cache(struct work_struct *work) 1088 { 1089 struct mlxsw_sp_port *mlxsw_sp_port = 1090 container_of(work, struct mlxsw_sp_port, 1091 periodic_hw_stats.update_dw.work); 1092 1093 if (!netif_carrier_ok(mlxsw_sp_port->dev)) 1094 goto out; 1095 1096 mlxsw_sp_port_get_hw_stats(mlxsw_sp_port->dev, 1097 &mlxsw_sp_port->periodic_hw_stats.stats); 1098 mlxsw_sp_port_get_hw_xstats(mlxsw_sp_port->dev, 1099 &mlxsw_sp_port->periodic_hw_stats.xstats); 1100 1101 out: 1102 mlxsw_core_schedule_dw(&mlxsw_sp_port->periodic_hw_stats.update_dw, 1103 MLXSW_HW_STATS_UPDATE_TIME); 1104 } 1105 1106 /* Return the stats from a cache that is updated periodically, 1107 * as this function might get called in an atomic context. 1108 */ 1109 static void 1110 mlxsw_sp_port_get_stats64(struct net_device *dev, 1111 struct rtnl_link_stats64 *stats) 1112 { 1113 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 1114 1115 memcpy(stats, &mlxsw_sp_port->periodic_hw_stats.stats, sizeof(*stats)); 1116 } 1117 1118 static int __mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, 1119 u16 vid_begin, u16 vid_end, 1120 bool is_member, bool untagged) 1121 { 1122 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1123 char *spvm_pl; 1124 int err; 1125 1126 spvm_pl = kmalloc(MLXSW_REG_SPVM_LEN, GFP_KERNEL); 1127 if (!spvm_pl) 1128 return -ENOMEM; 1129 1130 mlxsw_reg_spvm_pack(spvm_pl, mlxsw_sp_port->local_port, vid_begin, 1131 vid_end, is_member, untagged); 1132 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvm), spvm_pl); 1133 kfree(spvm_pl); 1134 return err; 1135 } 1136 1137 int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin, 1138 u16 vid_end, bool is_member, bool untagged) 1139 { 1140 u16 vid, vid_e; 1141 int err; 1142 1143 for (vid = vid_begin; vid <= vid_end; 1144 vid += MLXSW_REG_SPVM_REC_MAX_COUNT) { 1145 vid_e = min((u16) (vid + MLXSW_REG_SPVM_REC_MAX_COUNT - 1), 1146 vid_end); 1147 1148 err = __mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid_e, 1149 is_member, untagged); 1150 if (err) 1151 return err; 1152 } 1153 1154 return 0; 1155 } 1156 1157 static void mlxsw_sp_port_vlan_flush(struct mlxsw_sp_port *mlxsw_sp_port, 1158 bool flush_default) 1159 { 1160 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan, *tmp; 1161 1162 list_for_each_entry_safe(mlxsw_sp_port_vlan, tmp, 1163 &mlxsw_sp_port->vlans_list, list) { 1164 if (!flush_default && 1165 mlxsw_sp_port_vlan->vid == MLXSW_SP_DEFAULT_VID) 1166 continue; 1167 mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan); 1168 } 1169 } 1170 1171 static void 1172 mlxsw_sp_port_vlan_cleanup(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan) 1173 { 1174 if (mlxsw_sp_port_vlan->bridge_port) 1175 mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan); 1176 else if (mlxsw_sp_port_vlan->fid) 1177 mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port_vlan); 1178 } 1179 1180 struct mlxsw_sp_port_vlan * 1181 mlxsw_sp_port_vlan_create(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid) 1182 { 1183 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 1184 bool untagged = vid == MLXSW_SP_DEFAULT_VID; 1185 int err; 1186 1187 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid); 1188 if (mlxsw_sp_port_vlan) 1189 return ERR_PTR(-EEXIST); 1190 1191 err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, true, untagged); 1192 if (err) 1193 return ERR_PTR(err); 1194 1195 mlxsw_sp_port_vlan = kzalloc(sizeof(*mlxsw_sp_port_vlan), GFP_KERNEL); 1196 if (!mlxsw_sp_port_vlan) { 1197 err = -ENOMEM; 1198 goto err_port_vlan_alloc; 1199 } 1200 1201 mlxsw_sp_port_vlan->mlxsw_sp_port = mlxsw_sp_port; 1202 mlxsw_sp_port_vlan->vid = vid; 1203 list_add(&mlxsw_sp_port_vlan->list, &mlxsw_sp_port->vlans_list); 1204 1205 return mlxsw_sp_port_vlan; 1206 1207 err_port_vlan_alloc: 1208 mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false); 1209 return ERR_PTR(err); 1210 } 1211 1212 void mlxsw_sp_port_vlan_destroy(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan) 1213 { 1214 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port; 1215 u16 vid = mlxsw_sp_port_vlan->vid; 1216 1217 mlxsw_sp_port_vlan_cleanup(mlxsw_sp_port_vlan); 1218 list_del(&mlxsw_sp_port_vlan->list); 1219 kfree(mlxsw_sp_port_vlan); 1220 mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false); 1221 } 1222 1223 static int mlxsw_sp_port_add_vid(struct net_device *dev, 1224 __be16 __always_unused proto, u16 vid) 1225 { 1226 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 1227 1228 /* VLAN 0 is added to HW filter when device goes up, but it is 1229 * reserved in our case, so simply return. 1230 */ 1231 if (!vid) 1232 return 0; 1233 1234 return PTR_ERR_OR_ZERO(mlxsw_sp_port_vlan_create(mlxsw_sp_port, vid)); 1235 } 1236 1237 static int mlxsw_sp_port_kill_vid(struct net_device *dev, 1238 __be16 __always_unused proto, u16 vid) 1239 { 1240 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 1241 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 1242 1243 /* VLAN 0 is removed from HW filter when device goes down, but 1244 * it is reserved in our case, so simply return. 1245 */ 1246 if (!vid) 1247 return 0; 1248 1249 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid); 1250 if (!mlxsw_sp_port_vlan) 1251 return 0; 1252 mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan); 1253 1254 return 0; 1255 } 1256 1257 static struct mlxsw_sp_port_mall_tc_entry * 1258 mlxsw_sp_port_mall_tc_entry_find(struct mlxsw_sp_port *port, 1259 unsigned long cookie) { 1260 struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry; 1261 1262 list_for_each_entry(mall_tc_entry, &port->mall_tc_list, list) 1263 if (mall_tc_entry->cookie == cookie) 1264 return mall_tc_entry; 1265 1266 return NULL; 1267 } 1268 1269 static int 1270 mlxsw_sp_port_add_cls_matchall_mirror(struct mlxsw_sp_port *mlxsw_sp_port, 1271 struct mlxsw_sp_port_mall_mirror_tc_entry *mirror, 1272 const struct flow_action_entry *act, 1273 bool ingress) 1274 { 1275 enum mlxsw_sp_span_type span_type; 1276 1277 if (!act->dev) { 1278 netdev_err(mlxsw_sp_port->dev, "Could not find requested device\n"); 1279 return -EINVAL; 1280 } 1281 1282 mirror->ingress = ingress; 1283 span_type = ingress ? MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS; 1284 return mlxsw_sp_span_mirror_add(mlxsw_sp_port, act->dev, span_type, 1285 true, &mirror->span_id); 1286 } 1287 1288 static void 1289 mlxsw_sp_port_del_cls_matchall_mirror(struct mlxsw_sp_port *mlxsw_sp_port, 1290 struct mlxsw_sp_port_mall_mirror_tc_entry *mirror) 1291 { 1292 enum mlxsw_sp_span_type span_type; 1293 1294 span_type = mirror->ingress ? 1295 MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS; 1296 mlxsw_sp_span_mirror_del(mlxsw_sp_port, mirror->span_id, 1297 span_type, true); 1298 } 1299 1300 static int 1301 mlxsw_sp_port_add_cls_matchall_sample(struct mlxsw_sp_port *mlxsw_sp_port, 1302 struct tc_cls_matchall_offload *cls, 1303 const struct flow_action_entry *act, 1304 bool ingress) 1305 { 1306 int err; 1307 1308 if (!mlxsw_sp_port->sample) 1309 return -EOPNOTSUPP; 1310 if (rtnl_dereference(mlxsw_sp_port->sample->psample_group)) { 1311 netdev_err(mlxsw_sp_port->dev, "sample already active\n"); 1312 return -EEXIST; 1313 } 1314 if (act->sample.rate > MLXSW_REG_MPSC_RATE_MAX) { 1315 netdev_err(mlxsw_sp_port->dev, "sample rate not supported\n"); 1316 return -EOPNOTSUPP; 1317 } 1318 1319 rcu_assign_pointer(mlxsw_sp_port->sample->psample_group, 1320 act->sample.psample_group); 1321 mlxsw_sp_port->sample->truncate = act->sample.truncate; 1322 mlxsw_sp_port->sample->trunc_size = act->sample.trunc_size; 1323 mlxsw_sp_port->sample->rate = act->sample.rate; 1324 1325 err = mlxsw_sp_port_sample_set(mlxsw_sp_port, true, act->sample.rate); 1326 if (err) 1327 goto err_port_sample_set; 1328 return 0; 1329 1330 err_port_sample_set: 1331 RCU_INIT_POINTER(mlxsw_sp_port->sample->psample_group, NULL); 1332 return err; 1333 } 1334 1335 static void 1336 mlxsw_sp_port_del_cls_matchall_sample(struct mlxsw_sp_port *mlxsw_sp_port) 1337 { 1338 if (!mlxsw_sp_port->sample) 1339 return; 1340 1341 mlxsw_sp_port_sample_set(mlxsw_sp_port, false, 1); 1342 RCU_INIT_POINTER(mlxsw_sp_port->sample->psample_group, NULL); 1343 } 1344 1345 static int mlxsw_sp_port_add_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port, 1346 struct tc_cls_matchall_offload *f, 1347 bool ingress) 1348 { 1349 struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry; 1350 __be16 protocol = f->common.protocol; 1351 struct flow_action_entry *act; 1352 int err; 1353 1354 if (!flow_offload_has_one_action(&f->rule->action)) { 1355 netdev_err(mlxsw_sp_port->dev, "only singular actions are supported\n"); 1356 return -EOPNOTSUPP; 1357 } 1358 1359 mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL); 1360 if (!mall_tc_entry) 1361 return -ENOMEM; 1362 mall_tc_entry->cookie = f->cookie; 1363 1364 act = &f->rule->action.entries[0]; 1365 1366 if (act->id == FLOW_ACTION_MIRRED && protocol == htons(ETH_P_ALL)) { 1367 struct mlxsw_sp_port_mall_mirror_tc_entry *mirror; 1368 1369 mall_tc_entry->type = MLXSW_SP_PORT_MALL_MIRROR; 1370 mirror = &mall_tc_entry->mirror; 1371 err = mlxsw_sp_port_add_cls_matchall_mirror(mlxsw_sp_port, 1372 mirror, act, 1373 ingress); 1374 } else if (act->id == FLOW_ACTION_SAMPLE && 1375 protocol == htons(ETH_P_ALL)) { 1376 mall_tc_entry->type = MLXSW_SP_PORT_MALL_SAMPLE; 1377 err = mlxsw_sp_port_add_cls_matchall_sample(mlxsw_sp_port, f, 1378 act, ingress); 1379 } else { 1380 err = -EOPNOTSUPP; 1381 } 1382 1383 if (err) 1384 goto err_add_action; 1385 1386 list_add_tail(&mall_tc_entry->list, &mlxsw_sp_port->mall_tc_list); 1387 return 0; 1388 1389 err_add_action: 1390 kfree(mall_tc_entry); 1391 return err; 1392 } 1393 1394 static void mlxsw_sp_port_del_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port, 1395 struct tc_cls_matchall_offload *f) 1396 { 1397 struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry; 1398 1399 mall_tc_entry = mlxsw_sp_port_mall_tc_entry_find(mlxsw_sp_port, 1400 f->cookie); 1401 if (!mall_tc_entry) { 1402 netdev_dbg(mlxsw_sp_port->dev, "tc entry not found on port\n"); 1403 return; 1404 } 1405 list_del(&mall_tc_entry->list); 1406 1407 switch (mall_tc_entry->type) { 1408 case MLXSW_SP_PORT_MALL_MIRROR: 1409 mlxsw_sp_port_del_cls_matchall_mirror(mlxsw_sp_port, 1410 &mall_tc_entry->mirror); 1411 break; 1412 case MLXSW_SP_PORT_MALL_SAMPLE: 1413 mlxsw_sp_port_del_cls_matchall_sample(mlxsw_sp_port); 1414 break; 1415 default: 1416 WARN_ON(1); 1417 } 1418 1419 kfree(mall_tc_entry); 1420 } 1421 1422 static int mlxsw_sp_setup_tc_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port, 1423 struct tc_cls_matchall_offload *f, 1424 bool ingress) 1425 { 1426 switch (f->command) { 1427 case TC_CLSMATCHALL_REPLACE: 1428 return mlxsw_sp_port_add_cls_matchall(mlxsw_sp_port, f, 1429 ingress); 1430 case TC_CLSMATCHALL_DESTROY: 1431 mlxsw_sp_port_del_cls_matchall(mlxsw_sp_port, f); 1432 return 0; 1433 default: 1434 return -EOPNOTSUPP; 1435 } 1436 } 1437 1438 static int 1439 mlxsw_sp_setup_tc_cls_flower(struct mlxsw_sp_acl_block *acl_block, 1440 struct tc_cls_flower_offload *f) 1441 { 1442 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_acl_block_mlxsw_sp(acl_block); 1443 1444 switch (f->command) { 1445 case TC_CLSFLOWER_REPLACE: 1446 return mlxsw_sp_flower_replace(mlxsw_sp, acl_block, f); 1447 case TC_CLSFLOWER_DESTROY: 1448 mlxsw_sp_flower_destroy(mlxsw_sp, acl_block, f); 1449 return 0; 1450 case TC_CLSFLOWER_STATS: 1451 return mlxsw_sp_flower_stats(mlxsw_sp, acl_block, f); 1452 case TC_CLSFLOWER_TMPLT_CREATE: 1453 return mlxsw_sp_flower_tmplt_create(mlxsw_sp, acl_block, f); 1454 case TC_CLSFLOWER_TMPLT_DESTROY: 1455 mlxsw_sp_flower_tmplt_destroy(mlxsw_sp, acl_block, f); 1456 return 0; 1457 default: 1458 return -EOPNOTSUPP; 1459 } 1460 } 1461 1462 static int mlxsw_sp_setup_tc_block_cb_matchall(enum tc_setup_type type, 1463 void *type_data, 1464 void *cb_priv, bool ingress) 1465 { 1466 struct mlxsw_sp_port *mlxsw_sp_port = cb_priv; 1467 1468 switch (type) { 1469 case TC_SETUP_CLSMATCHALL: 1470 if (!tc_cls_can_offload_and_chain0(mlxsw_sp_port->dev, 1471 type_data)) 1472 return -EOPNOTSUPP; 1473 1474 return mlxsw_sp_setup_tc_cls_matchall(mlxsw_sp_port, type_data, 1475 ingress); 1476 case TC_SETUP_CLSFLOWER: 1477 return 0; 1478 default: 1479 return -EOPNOTSUPP; 1480 } 1481 } 1482 1483 static int mlxsw_sp_setup_tc_block_cb_matchall_ig(enum tc_setup_type type, 1484 void *type_data, 1485 void *cb_priv) 1486 { 1487 return mlxsw_sp_setup_tc_block_cb_matchall(type, type_data, 1488 cb_priv, true); 1489 } 1490 1491 static int mlxsw_sp_setup_tc_block_cb_matchall_eg(enum tc_setup_type type, 1492 void *type_data, 1493 void *cb_priv) 1494 { 1495 return mlxsw_sp_setup_tc_block_cb_matchall(type, type_data, 1496 cb_priv, false); 1497 } 1498 1499 static int mlxsw_sp_setup_tc_block_cb_flower(enum tc_setup_type type, 1500 void *type_data, void *cb_priv) 1501 { 1502 struct mlxsw_sp_acl_block *acl_block = cb_priv; 1503 1504 switch (type) { 1505 case TC_SETUP_CLSMATCHALL: 1506 return 0; 1507 case TC_SETUP_CLSFLOWER: 1508 if (mlxsw_sp_acl_block_disabled(acl_block)) 1509 return -EOPNOTSUPP; 1510 1511 return mlxsw_sp_setup_tc_cls_flower(acl_block, type_data); 1512 default: 1513 return -EOPNOTSUPP; 1514 } 1515 } 1516 1517 static int 1518 mlxsw_sp_setup_tc_block_flower_bind(struct mlxsw_sp_port *mlxsw_sp_port, 1519 struct tcf_block *block, bool ingress, 1520 struct netlink_ext_ack *extack) 1521 { 1522 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1523 struct mlxsw_sp_acl_block *acl_block; 1524 struct tcf_block_cb *block_cb; 1525 int err; 1526 1527 block_cb = tcf_block_cb_lookup(block, mlxsw_sp_setup_tc_block_cb_flower, 1528 mlxsw_sp); 1529 if (!block_cb) { 1530 acl_block = mlxsw_sp_acl_block_create(mlxsw_sp, block->net); 1531 if (!acl_block) 1532 return -ENOMEM; 1533 block_cb = __tcf_block_cb_register(block, 1534 mlxsw_sp_setup_tc_block_cb_flower, 1535 mlxsw_sp, acl_block, extack); 1536 if (IS_ERR(block_cb)) { 1537 err = PTR_ERR(block_cb); 1538 goto err_cb_register; 1539 } 1540 } else { 1541 acl_block = tcf_block_cb_priv(block_cb); 1542 } 1543 tcf_block_cb_incref(block_cb); 1544 err = mlxsw_sp_acl_block_bind(mlxsw_sp, acl_block, 1545 mlxsw_sp_port, ingress); 1546 if (err) 1547 goto err_block_bind; 1548 1549 if (ingress) 1550 mlxsw_sp_port->ing_acl_block = acl_block; 1551 else 1552 mlxsw_sp_port->eg_acl_block = acl_block; 1553 1554 return 0; 1555 1556 err_block_bind: 1557 if (!tcf_block_cb_decref(block_cb)) { 1558 __tcf_block_cb_unregister(block, block_cb); 1559 err_cb_register: 1560 mlxsw_sp_acl_block_destroy(acl_block); 1561 } 1562 return err; 1563 } 1564 1565 static void 1566 mlxsw_sp_setup_tc_block_flower_unbind(struct mlxsw_sp_port *mlxsw_sp_port, 1567 struct tcf_block *block, bool ingress) 1568 { 1569 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1570 struct mlxsw_sp_acl_block *acl_block; 1571 struct tcf_block_cb *block_cb; 1572 int err; 1573 1574 block_cb = tcf_block_cb_lookup(block, mlxsw_sp_setup_tc_block_cb_flower, 1575 mlxsw_sp); 1576 if (!block_cb) 1577 return; 1578 1579 if (ingress) 1580 mlxsw_sp_port->ing_acl_block = NULL; 1581 else 1582 mlxsw_sp_port->eg_acl_block = NULL; 1583 1584 acl_block = tcf_block_cb_priv(block_cb); 1585 err = mlxsw_sp_acl_block_unbind(mlxsw_sp, acl_block, 1586 mlxsw_sp_port, ingress); 1587 if (!err && !tcf_block_cb_decref(block_cb)) { 1588 __tcf_block_cb_unregister(block, block_cb); 1589 mlxsw_sp_acl_block_destroy(acl_block); 1590 } 1591 } 1592 1593 static int mlxsw_sp_setup_tc_block(struct mlxsw_sp_port *mlxsw_sp_port, 1594 struct tc_block_offload *f) 1595 { 1596 tc_setup_cb_t *cb; 1597 bool ingress; 1598 int err; 1599 1600 if (f->binder_type == TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS) { 1601 cb = mlxsw_sp_setup_tc_block_cb_matchall_ig; 1602 ingress = true; 1603 } else if (f->binder_type == TCF_BLOCK_BINDER_TYPE_CLSACT_EGRESS) { 1604 cb = mlxsw_sp_setup_tc_block_cb_matchall_eg; 1605 ingress = false; 1606 } else { 1607 return -EOPNOTSUPP; 1608 } 1609 1610 switch (f->command) { 1611 case TC_BLOCK_BIND: 1612 err = tcf_block_cb_register(f->block, cb, mlxsw_sp_port, 1613 mlxsw_sp_port, f->extack); 1614 if (err) 1615 return err; 1616 err = mlxsw_sp_setup_tc_block_flower_bind(mlxsw_sp_port, 1617 f->block, ingress, 1618 f->extack); 1619 if (err) { 1620 tcf_block_cb_unregister(f->block, cb, mlxsw_sp_port); 1621 return err; 1622 } 1623 return 0; 1624 case TC_BLOCK_UNBIND: 1625 mlxsw_sp_setup_tc_block_flower_unbind(mlxsw_sp_port, 1626 f->block, ingress); 1627 tcf_block_cb_unregister(f->block, cb, mlxsw_sp_port); 1628 return 0; 1629 default: 1630 return -EOPNOTSUPP; 1631 } 1632 } 1633 1634 static int mlxsw_sp_setup_tc(struct net_device *dev, enum tc_setup_type type, 1635 void *type_data) 1636 { 1637 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 1638 1639 switch (type) { 1640 case TC_SETUP_BLOCK: 1641 return mlxsw_sp_setup_tc_block(mlxsw_sp_port, type_data); 1642 case TC_SETUP_QDISC_RED: 1643 return mlxsw_sp_setup_tc_red(mlxsw_sp_port, type_data); 1644 case TC_SETUP_QDISC_PRIO: 1645 return mlxsw_sp_setup_tc_prio(mlxsw_sp_port, type_data); 1646 default: 1647 return -EOPNOTSUPP; 1648 } 1649 } 1650 1651 1652 static int mlxsw_sp_feature_hw_tc(struct net_device *dev, bool enable) 1653 { 1654 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 1655 1656 if (!enable) { 1657 if (mlxsw_sp_acl_block_rule_count(mlxsw_sp_port->ing_acl_block) || 1658 mlxsw_sp_acl_block_rule_count(mlxsw_sp_port->eg_acl_block) || 1659 !list_empty(&mlxsw_sp_port->mall_tc_list)) { 1660 netdev_err(dev, "Active offloaded tc filters, can't turn hw_tc_offload off\n"); 1661 return -EINVAL; 1662 } 1663 mlxsw_sp_acl_block_disable_inc(mlxsw_sp_port->ing_acl_block); 1664 mlxsw_sp_acl_block_disable_inc(mlxsw_sp_port->eg_acl_block); 1665 } else { 1666 mlxsw_sp_acl_block_disable_dec(mlxsw_sp_port->ing_acl_block); 1667 mlxsw_sp_acl_block_disable_dec(mlxsw_sp_port->eg_acl_block); 1668 } 1669 return 0; 1670 } 1671 1672 static int mlxsw_sp_feature_loopback(struct net_device *dev, bool enable) 1673 { 1674 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 1675 char pplr_pl[MLXSW_REG_PPLR_LEN]; 1676 int err; 1677 1678 if (netif_running(dev)) 1679 mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false); 1680 1681 mlxsw_reg_pplr_pack(pplr_pl, mlxsw_sp_port->local_port, enable); 1682 err = mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(pplr), 1683 pplr_pl); 1684 1685 if (netif_running(dev)) 1686 mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true); 1687 1688 return err; 1689 } 1690 1691 typedef int (*mlxsw_sp_feature_handler)(struct net_device *dev, bool enable); 1692 1693 static int mlxsw_sp_handle_feature(struct net_device *dev, 1694 netdev_features_t wanted_features, 1695 netdev_features_t feature, 1696 mlxsw_sp_feature_handler feature_handler) 1697 { 1698 netdev_features_t changes = wanted_features ^ dev->features; 1699 bool enable = !!(wanted_features & feature); 1700 int err; 1701 1702 if (!(changes & feature)) 1703 return 0; 1704 1705 err = feature_handler(dev, enable); 1706 if (err) { 1707 netdev_err(dev, "%s feature %pNF failed, err %d\n", 1708 enable ? "Enable" : "Disable", &feature, err); 1709 return err; 1710 } 1711 1712 if (enable) 1713 dev->features |= feature; 1714 else 1715 dev->features &= ~feature; 1716 1717 return 0; 1718 } 1719 static int mlxsw_sp_set_features(struct net_device *dev, 1720 netdev_features_t features) 1721 { 1722 netdev_features_t oper_features = dev->features; 1723 int err = 0; 1724 1725 err |= mlxsw_sp_handle_feature(dev, features, NETIF_F_HW_TC, 1726 mlxsw_sp_feature_hw_tc); 1727 err |= mlxsw_sp_handle_feature(dev, features, NETIF_F_LOOPBACK, 1728 mlxsw_sp_feature_loopback); 1729 1730 if (err) { 1731 dev->features = oper_features; 1732 return -EINVAL; 1733 } 1734 1735 return 0; 1736 } 1737 1738 static struct devlink_port * 1739 mlxsw_sp_port_get_devlink_port(struct net_device *dev) 1740 { 1741 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 1742 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1743 1744 return mlxsw_core_port_devlink_port_get(mlxsw_sp->core, 1745 mlxsw_sp_port->local_port); 1746 } 1747 1748 static const struct net_device_ops mlxsw_sp_port_netdev_ops = { 1749 .ndo_open = mlxsw_sp_port_open, 1750 .ndo_stop = mlxsw_sp_port_stop, 1751 .ndo_start_xmit = mlxsw_sp_port_xmit, 1752 .ndo_setup_tc = mlxsw_sp_setup_tc, 1753 .ndo_set_rx_mode = mlxsw_sp_set_rx_mode, 1754 .ndo_set_mac_address = mlxsw_sp_port_set_mac_address, 1755 .ndo_change_mtu = mlxsw_sp_port_change_mtu, 1756 .ndo_get_stats64 = mlxsw_sp_port_get_stats64, 1757 .ndo_has_offload_stats = mlxsw_sp_port_has_offload_stats, 1758 .ndo_get_offload_stats = mlxsw_sp_port_get_offload_stats, 1759 .ndo_vlan_rx_add_vid = mlxsw_sp_port_add_vid, 1760 .ndo_vlan_rx_kill_vid = mlxsw_sp_port_kill_vid, 1761 .ndo_set_features = mlxsw_sp_set_features, 1762 .ndo_get_devlink_port = mlxsw_sp_port_get_devlink_port, 1763 }; 1764 1765 static void mlxsw_sp_port_get_drvinfo(struct net_device *dev, 1766 struct ethtool_drvinfo *drvinfo) 1767 { 1768 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 1769 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1770 1771 strlcpy(drvinfo->driver, mlxsw_sp->bus_info->device_kind, 1772 sizeof(drvinfo->driver)); 1773 strlcpy(drvinfo->version, mlxsw_sp_driver_version, 1774 sizeof(drvinfo->version)); 1775 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), 1776 "%d.%d.%d", 1777 mlxsw_sp->bus_info->fw_rev.major, 1778 mlxsw_sp->bus_info->fw_rev.minor, 1779 mlxsw_sp->bus_info->fw_rev.subminor); 1780 strlcpy(drvinfo->bus_info, mlxsw_sp->bus_info->device_name, 1781 sizeof(drvinfo->bus_info)); 1782 } 1783 1784 static void mlxsw_sp_port_get_pauseparam(struct net_device *dev, 1785 struct ethtool_pauseparam *pause) 1786 { 1787 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 1788 1789 pause->rx_pause = mlxsw_sp_port->link.rx_pause; 1790 pause->tx_pause = mlxsw_sp_port->link.tx_pause; 1791 } 1792 1793 static int mlxsw_sp_port_pause_set(struct mlxsw_sp_port *mlxsw_sp_port, 1794 struct ethtool_pauseparam *pause) 1795 { 1796 char pfcc_pl[MLXSW_REG_PFCC_LEN]; 1797 1798 mlxsw_reg_pfcc_pack(pfcc_pl, mlxsw_sp_port->local_port); 1799 mlxsw_reg_pfcc_pprx_set(pfcc_pl, pause->rx_pause); 1800 mlxsw_reg_pfcc_pptx_set(pfcc_pl, pause->tx_pause); 1801 1802 return mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(pfcc), 1803 pfcc_pl); 1804 } 1805 1806 static int mlxsw_sp_port_set_pauseparam(struct net_device *dev, 1807 struct ethtool_pauseparam *pause) 1808 { 1809 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 1810 bool pause_en = pause->tx_pause || pause->rx_pause; 1811 int err; 1812 1813 if (mlxsw_sp_port->dcb.pfc && mlxsw_sp_port->dcb.pfc->pfc_en) { 1814 netdev_err(dev, "PFC already enabled on port\n"); 1815 return -EINVAL; 1816 } 1817 1818 if (pause->autoneg) { 1819 netdev_err(dev, "PAUSE frames autonegotiation isn't supported\n"); 1820 return -EINVAL; 1821 } 1822 1823 err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en); 1824 if (err) { 1825 netdev_err(dev, "Failed to configure port's headroom\n"); 1826 return err; 1827 } 1828 1829 err = mlxsw_sp_port_pause_set(mlxsw_sp_port, pause); 1830 if (err) { 1831 netdev_err(dev, "Failed to set PAUSE parameters\n"); 1832 goto err_port_pause_configure; 1833 } 1834 1835 mlxsw_sp_port->link.rx_pause = pause->rx_pause; 1836 mlxsw_sp_port->link.tx_pause = pause->tx_pause; 1837 1838 return 0; 1839 1840 err_port_pause_configure: 1841 pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port); 1842 mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en); 1843 return err; 1844 } 1845 1846 struct mlxsw_sp_port_hw_stats { 1847 char str[ETH_GSTRING_LEN]; 1848 u64 (*getter)(const char *payload); 1849 bool cells_bytes; 1850 }; 1851 1852 static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_stats[] = { 1853 { 1854 .str = "a_frames_transmitted_ok", 1855 .getter = mlxsw_reg_ppcnt_a_frames_transmitted_ok_get, 1856 }, 1857 { 1858 .str = "a_frames_received_ok", 1859 .getter = mlxsw_reg_ppcnt_a_frames_received_ok_get, 1860 }, 1861 { 1862 .str = "a_frame_check_sequence_errors", 1863 .getter = mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get, 1864 }, 1865 { 1866 .str = "a_alignment_errors", 1867 .getter = mlxsw_reg_ppcnt_a_alignment_errors_get, 1868 }, 1869 { 1870 .str = "a_octets_transmitted_ok", 1871 .getter = mlxsw_reg_ppcnt_a_octets_transmitted_ok_get, 1872 }, 1873 { 1874 .str = "a_octets_received_ok", 1875 .getter = mlxsw_reg_ppcnt_a_octets_received_ok_get, 1876 }, 1877 { 1878 .str = "a_multicast_frames_xmitted_ok", 1879 .getter = mlxsw_reg_ppcnt_a_multicast_frames_xmitted_ok_get, 1880 }, 1881 { 1882 .str = "a_broadcast_frames_xmitted_ok", 1883 .getter = mlxsw_reg_ppcnt_a_broadcast_frames_xmitted_ok_get, 1884 }, 1885 { 1886 .str = "a_multicast_frames_received_ok", 1887 .getter = mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get, 1888 }, 1889 { 1890 .str = "a_broadcast_frames_received_ok", 1891 .getter = mlxsw_reg_ppcnt_a_broadcast_frames_received_ok_get, 1892 }, 1893 { 1894 .str = "a_in_range_length_errors", 1895 .getter = mlxsw_reg_ppcnt_a_in_range_length_errors_get, 1896 }, 1897 { 1898 .str = "a_out_of_range_length_field", 1899 .getter = mlxsw_reg_ppcnt_a_out_of_range_length_field_get, 1900 }, 1901 { 1902 .str = "a_frame_too_long_errors", 1903 .getter = mlxsw_reg_ppcnt_a_frame_too_long_errors_get, 1904 }, 1905 { 1906 .str = "a_symbol_error_during_carrier", 1907 .getter = mlxsw_reg_ppcnt_a_symbol_error_during_carrier_get, 1908 }, 1909 { 1910 .str = "a_mac_control_frames_transmitted", 1911 .getter = mlxsw_reg_ppcnt_a_mac_control_frames_transmitted_get, 1912 }, 1913 { 1914 .str = "a_mac_control_frames_received", 1915 .getter = mlxsw_reg_ppcnt_a_mac_control_frames_received_get, 1916 }, 1917 { 1918 .str = "a_unsupported_opcodes_received", 1919 .getter = mlxsw_reg_ppcnt_a_unsupported_opcodes_received_get, 1920 }, 1921 { 1922 .str = "a_pause_mac_ctrl_frames_received", 1923 .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_received_get, 1924 }, 1925 { 1926 .str = "a_pause_mac_ctrl_frames_xmitted", 1927 .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_transmitted_get, 1928 }, 1929 }; 1930 1931 #define MLXSW_SP_PORT_HW_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_stats) 1932 1933 static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_rfc_2863_stats[] = { 1934 { 1935 .str = "if_in_discards", 1936 .getter = mlxsw_reg_ppcnt_if_in_discards_get, 1937 }, 1938 { 1939 .str = "if_out_discards", 1940 .getter = mlxsw_reg_ppcnt_if_out_discards_get, 1941 }, 1942 { 1943 .str = "if_out_errors", 1944 .getter = mlxsw_reg_ppcnt_if_out_errors_get, 1945 }, 1946 }; 1947 1948 #define MLXSW_SP_PORT_HW_RFC_2863_STATS_LEN \ 1949 ARRAY_SIZE(mlxsw_sp_port_hw_rfc_2863_stats) 1950 1951 static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_rfc_2819_stats[] = { 1952 { 1953 .str = "ether_stats_undersize_pkts", 1954 .getter = mlxsw_reg_ppcnt_ether_stats_undersize_pkts_get, 1955 }, 1956 { 1957 .str = "ether_stats_oversize_pkts", 1958 .getter = mlxsw_reg_ppcnt_ether_stats_oversize_pkts_get, 1959 }, 1960 { 1961 .str = "ether_stats_fragments", 1962 .getter = mlxsw_reg_ppcnt_ether_stats_fragments_get, 1963 }, 1964 { 1965 .str = "ether_pkts64octets", 1966 .getter = mlxsw_reg_ppcnt_ether_stats_pkts64octets_get, 1967 }, 1968 { 1969 .str = "ether_pkts65to127octets", 1970 .getter = mlxsw_reg_ppcnt_ether_stats_pkts65to127octets_get, 1971 }, 1972 { 1973 .str = "ether_pkts128to255octets", 1974 .getter = mlxsw_reg_ppcnt_ether_stats_pkts128to255octets_get, 1975 }, 1976 { 1977 .str = "ether_pkts256to511octets", 1978 .getter = mlxsw_reg_ppcnt_ether_stats_pkts256to511octets_get, 1979 }, 1980 { 1981 .str = "ether_pkts512to1023octets", 1982 .getter = mlxsw_reg_ppcnt_ether_stats_pkts512to1023octets_get, 1983 }, 1984 { 1985 .str = "ether_pkts1024to1518octets", 1986 .getter = mlxsw_reg_ppcnt_ether_stats_pkts1024to1518octets_get, 1987 }, 1988 { 1989 .str = "ether_pkts1519to2047octets", 1990 .getter = mlxsw_reg_ppcnt_ether_stats_pkts1519to2047octets_get, 1991 }, 1992 { 1993 .str = "ether_pkts2048to4095octets", 1994 .getter = mlxsw_reg_ppcnt_ether_stats_pkts2048to4095octets_get, 1995 }, 1996 { 1997 .str = "ether_pkts4096to8191octets", 1998 .getter = mlxsw_reg_ppcnt_ether_stats_pkts4096to8191octets_get, 1999 }, 2000 { 2001 .str = "ether_pkts8192to10239octets", 2002 .getter = mlxsw_reg_ppcnt_ether_stats_pkts8192to10239octets_get, 2003 }, 2004 }; 2005 2006 #define MLXSW_SP_PORT_HW_RFC_2819_STATS_LEN \ 2007 ARRAY_SIZE(mlxsw_sp_port_hw_rfc_2819_stats) 2008 2009 static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_rfc_3635_stats[] = { 2010 { 2011 .str = "dot3stats_fcs_errors", 2012 .getter = mlxsw_reg_ppcnt_dot3stats_fcs_errors_get, 2013 }, 2014 { 2015 .str = "dot3stats_symbol_errors", 2016 .getter = mlxsw_reg_ppcnt_dot3stats_symbol_errors_get, 2017 }, 2018 { 2019 .str = "dot3control_in_unknown_opcodes", 2020 .getter = mlxsw_reg_ppcnt_dot3control_in_unknown_opcodes_get, 2021 }, 2022 { 2023 .str = "dot3in_pause_frames", 2024 .getter = mlxsw_reg_ppcnt_dot3in_pause_frames_get, 2025 }, 2026 }; 2027 2028 #define MLXSW_SP_PORT_HW_RFC_3635_STATS_LEN \ 2029 ARRAY_SIZE(mlxsw_sp_port_hw_rfc_3635_stats) 2030 2031 static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_discard_stats[] = { 2032 { 2033 .str = "discard_ingress_general", 2034 .getter = mlxsw_reg_ppcnt_ingress_general_get, 2035 }, 2036 { 2037 .str = "discard_ingress_policy_engine", 2038 .getter = mlxsw_reg_ppcnt_ingress_policy_engine_get, 2039 }, 2040 { 2041 .str = "discard_ingress_vlan_membership", 2042 .getter = mlxsw_reg_ppcnt_ingress_vlan_membership_get, 2043 }, 2044 { 2045 .str = "discard_ingress_tag_frame_type", 2046 .getter = mlxsw_reg_ppcnt_ingress_tag_frame_type_get, 2047 }, 2048 { 2049 .str = "discard_egress_vlan_membership", 2050 .getter = mlxsw_reg_ppcnt_egress_vlan_membership_get, 2051 }, 2052 { 2053 .str = "discard_loopback_filter", 2054 .getter = mlxsw_reg_ppcnt_loopback_filter_get, 2055 }, 2056 { 2057 .str = "discard_egress_general", 2058 .getter = mlxsw_reg_ppcnt_egress_general_get, 2059 }, 2060 { 2061 .str = "discard_egress_hoq", 2062 .getter = mlxsw_reg_ppcnt_egress_hoq_get, 2063 }, 2064 { 2065 .str = "discard_egress_policy_engine", 2066 .getter = mlxsw_reg_ppcnt_egress_policy_engine_get, 2067 }, 2068 { 2069 .str = "discard_ingress_tx_link_down", 2070 .getter = mlxsw_reg_ppcnt_ingress_tx_link_down_get, 2071 }, 2072 { 2073 .str = "discard_egress_stp_filter", 2074 .getter = mlxsw_reg_ppcnt_egress_stp_filter_get, 2075 }, 2076 { 2077 .str = "discard_egress_sll", 2078 .getter = mlxsw_reg_ppcnt_egress_sll_get, 2079 }, 2080 }; 2081 2082 #define MLXSW_SP_PORT_HW_DISCARD_STATS_LEN \ 2083 ARRAY_SIZE(mlxsw_sp_port_hw_discard_stats) 2084 2085 static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_prio_stats[] = { 2086 { 2087 .str = "rx_octets_prio", 2088 .getter = mlxsw_reg_ppcnt_rx_octets_get, 2089 }, 2090 { 2091 .str = "rx_frames_prio", 2092 .getter = mlxsw_reg_ppcnt_rx_frames_get, 2093 }, 2094 { 2095 .str = "tx_octets_prio", 2096 .getter = mlxsw_reg_ppcnt_tx_octets_get, 2097 }, 2098 { 2099 .str = "tx_frames_prio", 2100 .getter = mlxsw_reg_ppcnt_tx_frames_get, 2101 }, 2102 { 2103 .str = "rx_pause_prio", 2104 .getter = mlxsw_reg_ppcnt_rx_pause_get, 2105 }, 2106 { 2107 .str = "rx_pause_duration_prio", 2108 .getter = mlxsw_reg_ppcnt_rx_pause_duration_get, 2109 }, 2110 { 2111 .str = "tx_pause_prio", 2112 .getter = mlxsw_reg_ppcnt_tx_pause_get, 2113 }, 2114 { 2115 .str = "tx_pause_duration_prio", 2116 .getter = mlxsw_reg_ppcnt_tx_pause_duration_get, 2117 }, 2118 }; 2119 2120 #define MLXSW_SP_PORT_HW_PRIO_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_prio_stats) 2121 2122 static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_tc_stats[] = { 2123 { 2124 .str = "tc_transmit_queue_tc", 2125 .getter = mlxsw_reg_ppcnt_tc_transmit_queue_get, 2126 .cells_bytes = true, 2127 }, 2128 { 2129 .str = "tc_no_buffer_discard_uc_tc", 2130 .getter = mlxsw_reg_ppcnt_tc_no_buffer_discard_uc_get, 2131 }, 2132 }; 2133 2134 #define MLXSW_SP_PORT_HW_TC_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_tc_stats) 2135 2136 #define MLXSW_SP_PORT_ETHTOOL_STATS_LEN (MLXSW_SP_PORT_HW_STATS_LEN + \ 2137 MLXSW_SP_PORT_HW_RFC_2863_STATS_LEN + \ 2138 MLXSW_SP_PORT_HW_RFC_2819_STATS_LEN + \ 2139 MLXSW_SP_PORT_HW_RFC_3635_STATS_LEN + \ 2140 MLXSW_SP_PORT_HW_DISCARD_STATS_LEN + \ 2141 (MLXSW_SP_PORT_HW_PRIO_STATS_LEN * \ 2142 IEEE_8021QAZ_MAX_TCS) + \ 2143 (MLXSW_SP_PORT_HW_TC_STATS_LEN * \ 2144 TC_MAX_QUEUE)) 2145 2146 static void mlxsw_sp_port_get_prio_strings(u8 **p, int prio) 2147 { 2148 int i; 2149 2150 for (i = 0; i < MLXSW_SP_PORT_HW_PRIO_STATS_LEN; i++) { 2151 snprintf(*p, ETH_GSTRING_LEN, "%.29s_%.1d", 2152 mlxsw_sp_port_hw_prio_stats[i].str, prio); 2153 *p += ETH_GSTRING_LEN; 2154 } 2155 } 2156 2157 static void mlxsw_sp_port_get_tc_strings(u8 **p, int tc) 2158 { 2159 int i; 2160 2161 for (i = 0; i < MLXSW_SP_PORT_HW_TC_STATS_LEN; i++) { 2162 snprintf(*p, ETH_GSTRING_LEN, "%.29s_%.1d", 2163 mlxsw_sp_port_hw_tc_stats[i].str, tc); 2164 *p += ETH_GSTRING_LEN; 2165 } 2166 } 2167 2168 static void mlxsw_sp_port_get_strings(struct net_device *dev, 2169 u32 stringset, u8 *data) 2170 { 2171 u8 *p = data; 2172 int i; 2173 2174 switch (stringset) { 2175 case ETH_SS_STATS: 2176 for (i = 0; i < MLXSW_SP_PORT_HW_STATS_LEN; i++) { 2177 memcpy(p, mlxsw_sp_port_hw_stats[i].str, 2178 ETH_GSTRING_LEN); 2179 p += ETH_GSTRING_LEN; 2180 } 2181 2182 for (i = 0; i < MLXSW_SP_PORT_HW_RFC_2863_STATS_LEN; i++) { 2183 memcpy(p, mlxsw_sp_port_hw_rfc_2863_stats[i].str, 2184 ETH_GSTRING_LEN); 2185 p += ETH_GSTRING_LEN; 2186 } 2187 2188 for (i = 0; i < MLXSW_SP_PORT_HW_RFC_2819_STATS_LEN; i++) { 2189 memcpy(p, mlxsw_sp_port_hw_rfc_2819_stats[i].str, 2190 ETH_GSTRING_LEN); 2191 p += ETH_GSTRING_LEN; 2192 } 2193 2194 for (i = 0; i < MLXSW_SP_PORT_HW_RFC_3635_STATS_LEN; i++) { 2195 memcpy(p, mlxsw_sp_port_hw_rfc_3635_stats[i].str, 2196 ETH_GSTRING_LEN); 2197 p += ETH_GSTRING_LEN; 2198 } 2199 2200 for (i = 0; i < MLXSW_SP_PORT_HW_DISCARD_STATS_LEN; i++) { 2201 memcpy(p, mlxsw_sp_port_hw_discard_stats[i].str, 2202 ETH_GSTRING_LEN); 2203 p += ETH_GSTRING_LEN; 2204 } 2205 2206 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) 2207 mlxsw_sp_port_get_prio_strings(&p, i); 2208 2209 for (i = 0; i < TC_MAX_QUEUE; i++) 2210 mlxsw_sp_port_get_tc_strings(&p, i); 2211 2212 break; 2213 } 2214 } 2215 2216 static int mlxsw_sp_port_set_phys_id(struct net_device *dev, 2217 enum ethtool_phys_id_state state) 2218 { 2219 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 2220 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 2221 char mlcr_pl[MLXSW_REG_MLCR_LEN]; 2222 bool active; 2223 2224 switch (state) { 2225 case ETHTOOL_ID_ACTIVE: 2226 active = true; 2227 break; 2228 case ETHTOOL_ID_INACTIVE: 2229 active = false; 2230 break; 2231 default: 2232 return -EOPNOTSUPP; 2233 } 2234 2235 mlxsw_reg_mlcr_pack(mlcr_pl, mlxsw_sp_port->local_port, active); 2236 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mlcr), mlcr_pl); 2237 } 2238 2239 static int 2240 mlxsw_sp_get_hw_stats_by_group(struct mlxsw_sp_port_hw_stats **p_hw_stats, 2241 int *p_len, enum mlxsw_reg_ppcnt_grp grp) 2242 { 2243 switch (grp) { 2244 case MLXSW_REG_PPCNT_IEEE_8023_CNT: 2245 *p_hw_stats = mlxsw_sp_port_hw_stats; 2246 *p_len = MLXSW_SP_PORT_HW_STATS_LEN; 2247 break; 2248 case MLXSW_REG_PPCNT_RFC_2863_CNT: 2249 *p_hw_stats = mlxsw_sp_port_hw_rfc_2863_stats; 2250 *p_len = MLXSW_SP_PORT_HW_RFC_2863_STATS_LEN; 2251 break; 2252 case MLXSW_REG_PPCNT_RFC_2819_CNT: 2253 *p_hw_stats = mlxsw_sp_port_hw_rfc_2819_stats; 2254 *p_len = MLXSW_SP_PORT_HW_RFC_2819_STATS_LEN; 2255 break; 2256 case MLXSW_REG_PPCNT_RFC_3635_CNT: 2257 *p_hw_stats = mlxsw_sp_port_hw_rfc_3635_stats; 2258 *p_len = MLXSW_SP_PORT_HW_RFC_3635_STATS_LEN; 2259 break; 2260 case MLXSW_REG_PPCNT_DISCARD_CNT: 2261 *p_hw_stats = mlxsw_sp_port_hw_discard_stats; 2262 *p_len = MLXSW_SP_PORT_HW_DISCARD_STATS_LEN; 2263 break; 2264 case MLXSW_REG_PPCNT_PRIO_CNT: 2265 *p_hw_stats = mlxsw_sp_port_hw_prio_stats; 2266 *p_len = MLXSW_SP_PORT_HW_PRIO_STATS_LEN; 2267 break; 2268 case MLXSW_REG_PPCNT_TC_CNT: 2269 *p_hw_stats = mlxsw_sp_port_hw_tc_stats; 2270 *p_len = MLXSW_SP_PORT_HW_TC_STATS_LEN; 2271 break; 2272 default: 2273 WARN_ON(1); 2274 return -EOPNOTSUPP; 2275 } 2276 return 0; 2277 } 2278 2279 static void __mlxsw_sp_port_get_stats(struct net_device *dev, 2280 enum mlxsw_reg_ppcnt_grp grp, int prio, 2281 u64 *data, int data_index) 2282 { 2283 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 2284 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 2285 struct mlxsw_sp_port_hw_stats *hw_stats; 2286 char ppcnt_pl[MLXSW_REG_PPCNT_LEN]; 2287 int i, len; 2288 int err; 2289 2290 err = mlxsw_sp_get_hw_stats_by_group(&hw_stats, &len, grp); 2291 if (err) 2292 return; 2293 mlxsw_sp_port_get_stats_raw(dev, grp, prio, ppcnt_pl); 2294 for (i = 0; i < len; i++) { 2295 data[data_index + i] = hw_stats[i].getter(ppcnt_pl); 2296 if (!hw_stats[i].cells_bytes) 2297 continue; 2298 data[data_index + i] = mlxsw_sp_cells_bytes(mlxsw_sp, 2299 data[data_index + i]); 2300 } 2301 } 2302 2303 static void mlxsw_sp_port_get_stats(struct net_device *dev, 2304 struct ethtool_stats *stats, u64 *data) 2305 { 2306 int i, data_index = 0; 2307 2308 /* IEEE 802.3 Counters */ 2309 __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_IEEE_8023_CNT, 0, 2310 data, data_index); 2311 data_index = MLXSW_SP_PORT_HW_STATS_LEN; 2312 2313 /* RFC 2863 Counters */ 2314 __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_RFC_2863_CNT, 0, 2315 data, data_index); 2316 data_index += MLXSW_SP_PORT_HW_RFC_2863_STATS_LEN; 2317 2318 /* RFC 2819 Counters */ 2319 __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_RFC_2819_CNT, 0, 2320 data, data_index); 2321 data_index += MLXSW_SP_PORT_HW_RFC_2819_STATS_LEN; 2322 2323 /* RFC 3635 Counters */ 2324 __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_RFC_3635_CNT, 0, 2325 data, data_index); 2326 data_index += MLXSW_SP_PORT_HW_RFC_3635_STATS_LEN; 2327 2328 /* Discard Counters */ 2329 __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_DISCARD_CNT, 0, 2330 data, data_index); 2331 data_index += MLXSW_SP_PORT_HW_DISCARD_STATS_LEN; 2332 2333 /* Per-Priority Counters */ 2334 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { 2335 __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_PRIO_CNT, i, 2336 data, data_index); 2337 data_index += MLXSW_SP_PORT_HW_PRIO_STATS_LEN; 2338 } 2339 2340 /* Per-TC Counters */ 2341 for (i = 0; i < TC_MAX_QUEUE; i++) { 2342 __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_TC_CNT, i, 2343 data, data_index); 2344 data_index += MLXSW_SP_PORT_HW_TC_STATS_LEN; 2345 } 2346 } 2347 2348 static int mlxsw_sp_port_get_sset_count(struct net_device *dev, int sset) 2349 { 2350 switch (sset) { 2351 case ETH_SS_STATS: 2352 return MLXSW_SP_PORT_ETHTOOL_STATS_LEN; 2353 default: 2354 return -EOPNOTSUPP; 2355 } 2356 } 2357 2358 struct mlxsw_sp1_port_link_mode { 2359 enum ethtool_link_mode_bit_indices mask_ethtool; 2360 u32 mask; 2361 u32 speed; 2362 }; 2363 2364 static const struct mlxsw_sp1_port_link_mode mlxsw_sp1_port_link_mode[] = { 2365 { 2366 .mask = MLXSW_REG_PTYS_ETH_SPEED_100BASE_T, 2367 .mask_ethtool = ETHTOOL_LINK_MODE_100baseT_Full_BIT, 2368 .speed = SPEED_100, 2369 }, 2370 { 2371 .mask = MLXSW_REG_PTYS_ETH_SPEED_SGMII | 2372 MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX, 2373 .mask_ethtool = ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, 2374 .speed = SPEED_1000, 2375 }, 2376 { 2377 .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_T, 2378 .mask_ethtool = ETHTOOL_LINK_MODE_10000baseT_Full_BIT, 2379 .speed = SPEED_10000, 2380 }, 2381 { 2382 .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CX4 | 2383 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4, 2384 .mask_ethtool = ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, 2385 .speed = SPEED_10000, 2386 }, 2387 { 2388 .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR | 2389 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR | 2390 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR | 2391 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_ER_LR, 2392 .mask_ethtool = ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, 2393 .speed = SPEED_10000, 2394 }, 2395 { 2396 .mask = MLXSW_REG_PTYS_ETH_SPEED_20GBASE_KR2, 2397 .mask_ethtool = ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT, 2398 .speed = SPEED_20000, 2399 }, 2400 { 2401 .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4, 2402 .mask_ethtool = ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT, 2403 .speed = SPEED_40000, 2404 }, 2405 { 2406 .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4, 2407 .mask_ethtool = ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT, 2408 .speed = SPEED_40000, 2409 }, 2410 { 2411 .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4, 2412 .mask_ethtool = ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT, 2413 .speed = SPEED_40000, 2414 }, 2415 { 2416 .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_LR4_ER4, 2417 .mask_ethtool = ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT, 2418 .speed = SPEED_40000, 2419 }, 2420 { 2421 .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_CR, 2422 .mask_ethtool = ETHTOOL_LINK_MODE_25000baseCR_Full_BIT, 2423 .speed = SPEED_25000, 2424 }, 2425 { 2426 .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_KR, 2427 .mask_ethtool = ETHTOOL_LINK_MODE_25000baseKR_Full_BIT, 2428 .speed = SPEED_25000, 2429 }, 2430 { 2431 .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR, 2432 .mask_ethtool = ETHTOOL_LINK_MODE_25000baseSR_Full_BIT, 2433 .speed = SPEED_25000, 2434 }, 2435 { 2436 .mask = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_CR2, 2437 .mask_ethtool = ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT, 2438 .speed = SPEED_50000, 2439 }, 2440 { 2441 .mask = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR2, 2442 .mask_ethtool = ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT, 2443 .speed = SPEED_50000, 2444 }, 2445 { 2446 .mask = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_SR2, 2447 .mask_ethtool = ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT, 2448 .speed = SPEED_50000, 2449 }, 2450 { 2451 .mask = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4, 2452 .mask_ethtool = ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT, 2453 .speed = SPEED_56000, 2454 }, 2455 { 2456 .mask = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4, 2457 .mask_ethtool = ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT, 2458 .speed = SPEED_56000, 2459 }, 2460 { 2461 .mask = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4, 2462 .mask_ethtool = ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT, 2463 .speed = SPEED_56000, 2464 }, 2465 { 2466 .mask = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4, 2467 .mask_ethtool = ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT, 2468 .speed = SPEED_56000, 2469 }, 2470 { 2471 .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4, 2472 .mask_ethtool = ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT, 2473 .speed = SPEED_100000, 2474 }, 2475 { 2476 .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4, 2477 .mask_ethtool = ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT, 2478 .speed = SPEED_100000, 2479 }, 2480 { 2481 .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4, 2482 .mask_ethtool = ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT, 2483 .speed = SPEED_100000, 2484 }, 2485 { 2486 .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_LR4_ER4, 2487 .mask_ethtool = ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT, 2488 .speed = SPEED_100000, 2489 }, 2490 }; 2491 2492 #define MLXSW_SP1_PORT_LINK_MODE_LEN ARRAY_SIZE(mlxsw_sp1_port_link_mode) 2493 2494 static void 2495 mlxsw_sp1_from_ptys_supported_port(struct mlxsw_sp *mlxsw_sp, 2496 u32 ptys_eth_proto, 2497 struct ethtool_link_ksettings *cmd) 2498 { 2499 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR | 2500 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR | 2501 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 | 2502 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 | 2503 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 | 2504 MLXSW_REG_PTYS_ETH_SPEED_SGMII)) 2505 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); 2506 2507 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR | 2508 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 | 2509 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 | 2510 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 | 2511 MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX)) 2512 ethtool_link_ksettings_add_link_mode(cmd, supported, Backplane); 2513 } 2514 2515 static void 2516 mlxsw_sp1_from_ptys_link(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto, 2517 unsigned long *mode) 2518 { 2519 int i; 2520 2521 for (i = 0; i < MLXSW_SP1_PORT_LINK_MODE_LEN; i++) { 2522 if (ptys_eth_proto & mlxsw_sp1_port_link_mode[i].mask) 2523 __set_bit(mlxsw_sp1_port_link_mode[i].mask_ethtool, 2524 mode); 2525 } 2526 } 2527 2528 static void 2529 mlxsw_sp1_from_ptys_speed_duplex(struct mlxsw_sp *mlxsw_sp, bool carrier_ok, 2530 u32 ptys_eth_proto, 2531 struct ethtool_link_ksettings *cmd) 2532 { 2533 u32 speed = SPEED_UNKNOWN; 2534 u8 duplex = DUPLEX_UNKNOWN; 2535 int i; 2536 2537 if (!carrier_ok) 2538 goto out; 2539 2540 for (i = 0; i < MLXSW_SP1_PORT_LINK_MODE_LEN; i++) { 2541 if (ptys_eth_proto & mlxsw_sp1_port_link_mode[i].mask) { 2542 speed = mlxsw_sp1_port_link_mode[i].speed; 2543 duplex = DUPLEX_FULL; 2544 break; 2545 } 2546 } 2547 out: 2548 cmd->base.speed = speed; 2549 cmd->base.duplex = duplex; 2550 } 2551 2552 static u32 2553 mlxsw_sp1_to_ptys_advert_link(struct mlxsw_sp *mlxsw_sp, 2554 const struct ethtool_link_ksettings *cmd) 2555 { 2556 u32 ptys_proto = 0; 2557 int i; 2558 2559 for (i = 0; i < MLXSW_SP1_PORT_LINK_MODE_LEN; i++) { 2560 if (test_bit(mlxsw_sp1_port_link_mode[i].mask_ethtool, 2561 cmd->link_modes.advertising)) 2562 ptys_proto |= mlxsw_sp1_port_link_mode[i].mask; 2563 } 2564 return ptys_proto; 2565 } 2566 2567 static u32 mlxsw_sp1_to_ptys_speed(struct mlxsw_sp *mlxsw_sp, u32 speed) 2568 { 2569 u32 ptys_proto = 0; 2570 int i; 2571 2572 for (i = 0; i < MLXSW_SP1_PORT_LINK_MODE_LEN; i++) { 2573 if (speed == mlxsw_sp1_port_link_mode[i].speed) 2574 ptys_proto |= mlxsw_sp1_port_link_mode[i].mask; 2575 } 2576 return ptys_proto; 2577 } 2578 2579 static u32 2580 mlxsw_sp1_to_ptys_upper_speed(struct mlxsw_sp *mlxsw_sp, u32 upper_speed) 2581 { 2582 u32 ptys_proto = 0; 2583 int i; 2584 2585 for (i = 0; i < MLXSW_SP1_PORT_LINK_MODE_LEN; i++) { 2586 if (mlxsw_sp1_port_link_mode[i].speed <= upper_speed) 2587 ptys_proto |= mlxsw_sp1_port_link_mode[i].mask; 2588 } 2589 return ptys_proto; 2590 } 2591 2592 static int 2593 mlxsw_sp1_port_speed_base(struct mlxsw_sp *mlxsw_sp, u8 local_port, 2594 u32 *base_speed) 2595 { 2596 *base_speed = MLXSW_SP_PORT_BASE_SPEED_25G; 2597 return 0; 2598 } 2599 2600 static void 2601 mlxsw_sp1_reg_ptys_eth_pack(struct mlxsw_sp *mlxsw_sp, char *payload, 2602 u8 local_port, u32 proto_admin, bool autoneg) 2603 { 2604 mlxsw_reg_ptys_eth_pack(payload, local_port, proto_admin, autoneg); 2605 } 2606 2607 static void 2608 mlxsw_sp1_reg_ptys_eth_unpack(struct mlxsw_sp *mlxsw_sp, char *payload, 2609 u32 *p_eth_proto_cap, u32 *p_eth_proto_admin, 2610 u32 *p_eth_proto_oper) 2611 { 2612 mlxsw_reg_ptys_eth_unpack(payload, p_eth_proto_cap, p_eth_proto_admin, 2613 p_eth_proto_oper); 2614 } 2615 2616 static const struct mlxsw_sp_port_type_speed_ops 2617 mlxsw_sp1_port_type_speed_ops = { 2618 .from_ptys_supported_port = mlxsw_sp1_from_ptys_supported_port, 2619 .from_ptys_link = mlxsw_sp1_from_ptys_link, 2620 .from_ptys_speed_duplex = mlxsw_sp1_from_ptys_speed_duplex, 2621 .to_ptys_advert_link = mlxsw_sp1_to_ptys_advert_link, 2622 .to_ptys_speed = mlxsw_sp1_to_ptys_speed, 2623 .to_ptys_upper_speed = mlxsw_sp1_to_ptys_upper_speed, 2624 .port_speed_base = mlxsw_sp1_port_speed_base, 2625 .reg_ptys_eth_pack = mlxsw_sp1_reg_ptys_eth_pack, 2626 .reg_ptys_eth_unpack = mlxsw_sp1_reg_ptys_eth_unpack, 2627 }; 2628 2629 static const enum ethtool_link_mode_bit_indices 2630 mlxsw_sp2_mask_ethtool_sgmii_100m[] = { 2631 ETHTOOL_LINK_MODE_100baseT_Full_BIT, 2632 }; 2633 2634 #define MLXSW_SP2_MASK_ETHTOOL_SGMII_100M_LEN \ 2635 ARRAY_SIZE(mlxsw_sp2_mask_ethtool_sgmii_100m) 2636 2637 static const enum ethtool_link_mode_bit_indices 2638 mlxsw_sp2_mask_ethtool_1000base_x_sgmii[] = { 2639 ETHTOOL_LINK_MODE_1000baseT_Full_BIT, 2640 ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, 2641 }; 2642 2643 #define MLXSW_SP2_MASK_ETHTOOL_1000BASE_X_SGMII_LEN \ 2644 ARRAY_SIZE(mlxsw_sp2_mask_ethtool_1000base_x_sgmii) 2645 2646 static const enum ethtool_link_mode_bit_indices 2647 mlxsw_sp2_mask_ethtool_2_5gbase_x_2_5gmii[] = { 2648 ETHTOOL_LINK_MODE_2500baseX_Full_BIT, 2649 }; 2650 2651 #define MLXSW_SP2_MASK_ETHTOOL_2_5GBASE_X_2_5GMII_LEN \ 2652 ARRAY_SIZE(mlxsw_sp2_mask_ethtool_2_5gbase_x_2_5gmii) 2653 2654 static const enum ethtool_link_mode_bit_indices 2655 mlxsw_sp2_mask_ethtool_5gbase_r[] = { 2656 ETHTOOL_LINK_MODE_5000baseT_Full_BIT, 2657 }; 2658 2659 #define MLXSW_SP2_MASK_ETHTOOL_5GBASE_R_LEN \ 2660 ARRAY_SIZE(mlxsw_sp2_mask_ethtool_5gbase_r) 2661 2662 static const enum ethtool_link_mode_bit_indices 2663 mlxsw_sp2_mask_ethtool_xfi_xaui_1_10g[] = { 2664 ETHTOOL_LINK_MODE_10000baseT_Full_BIT, 2665 ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, 2666 ETHTOOL_LINK_MODE_10000baseR_FEC_BIT, 2667 ETHTOOL_LINK_MODE_10000baseCR_Full_BIT, 2668 ETHTOOL_LINK_MODE_10000baseSR_Full_BIT, 2669 ETHTOOL_LINK_MODE_10000baseLR_Full_BIT, 2670 ETHTOOL_LINK_MODE_10000baseER_Full_BIT, 2671 }; 2672 2673 #define MLXSW_SP2_MASK_ETHTOOL_XFI_XAUI_1_10G_LEN \ 2674 ARRAY_SIZE(mlxsw_sp2_mask_ethtool_xfi_xaui_1_10g) 2675 2676 static const enum ethtool_link_mode_bit_indices 2677 mlxsw_sp2_mask_ethtool_xlaui_4_xlppi_4_40g[] = { 2678 ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT, 2679 ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT, 2680 ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT, 2681 ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT, 2682 }; 2683 2684 #define MLXSW_SP2_MASK_ETHTOOL_XLAUI_4_XLPPI_4_40G_LEN \ 2685 ARRAY_SIZE(mlxsw_sp2_mask_ethtool_xlaui_4_xlppi_4_40g) 2686 2687 static const enum ethtool_link_mode_bit_indices 2688 mlxsw_sp2_mask_ethtool_25gaui_1_25gbase_cr_kr[] = { 2689 ETHTOOL_LINK_MODE_25000baseCR_Full_BIT, 2690 ETHTOOL_LINK_MODE_25000baseKR_Full_BIT, 2691 ETHTOOL_LINK_MODE_25000baseSR_Full_BIT, 2692 }; 2693 2694 #define MLXSW_SP2_MASK_ETHTOOL_25GAUI_1_25GBASE_CR_KR_LEN \ 2695 ARRAY_SIZE(mlxsw_sp2_mask_ethtool_25gaui_1_25gbase_cr_kr) 2696 2697 static const enum ethtool_link_mode_bit_indices 2698 mlxsw_sp2_mask_ethtool_50gaui_2_laui_2_50gbase_cr2_kr2[] = { 2699 ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT, 2700 ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT, 2701 ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT, 2702 }; 2703 2704 #define MLXSW_SP2_MASK_ETHTOOL_50GAUI_2_LAUI_2_50GBASE_CR2_KR2_LEN \ 2705 ARRAY_SIZE(mlxsw_sp2_mask_ethtool_50gaui_2_laui_2_50gbase_cr2_kr2) 2706 2707 static const enum ethtool_link_mode_bit_indices 2708 mlxsw_sp2_mask_ethtool_50gaui_1_laui_1_50gbase_cr_kr[] = { 2709 ETHTOOL_LINK_MODE_50000baseKR_Full_BIT, 2710 ETHTOOL_LINK_MODE_50000baseSR_Full_BIT, 2711 ETHTOOL_LINK_MODE_50000baseCR_Full_BIT, 2712 ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT, 2713 ETHTOOL_LINK_MODE_50000baseDR_Full_BIT, 2714 }; 2715 2716 #define MLXSW_SP2_MASK_ETHTOOL_50GAUI_1_LAUI_1_50GBASE_CR_KR_LEN \ 2717 ARRAY_SIZE(mlxsw_sp2_mask_ethtool_50gaui_1_laui_1_50gbase_cr_kr) 2718 2719 static const enum ethtool_link_mode_bit_indices 2720 mlxsw_sp2_mask_ethtool_caui_4_100gbase_cr4_kr4[] = { 2721 ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT, 2722 ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT, 2723 ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT, 2724 ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT, 2725 }; 2726 2727 #define MLXSW_SP2_MASK_ETHTOOL_CAUI_4_100GBASE_CR4_KR4_LEN \ 2728 ARRAY_SIZE(mlxsw_sp2_mask_ethtool_caui_4_100gbase_cr4_kr4) 2729 2730 static const enum ethtool_link_mode_bit_indices 2731 mlxsw_sp2_mask_ethtool_100gaui_2_100gbase_cr2_kr2[] = { 2732 ETHTOOL_LINK_MODE_100000baseKR2_Full_BIT, 2733 ETHTOOL_LINK_MODE_100000baseSR2_Full_BIT, 2734 ETHTOOL_LINK_MODE_100000baseCR2_Full_BIT, 2735 ETHTOOL_LINK_MODE_100000baseLR2_ER2_FR2_Full_BIT, 2736 ETHTOOL_LINK_MODE_100000baseDR2_Full_BIT, 2737 }; 2738 2739 #define MLXSW_SP2_MASK_ETHTOOL_100GAUI_2_100GBASE_CR2_KR2_LEN \ 2740 ARRAY_SIZE(mlxsw_sp2_mask_ethtool_100gaui_2_100gbase_cr2_kr2) 2741 2742 static const enum ethtool_link_mode_bit_indices 2743 mlxsw_sp2_mask_ethtool_200gaui_4_200gbase_cr4_kr4[] = { 2744 ETHTOOL_LINK_MODE_200000baseKR4_Full_BIT, 2745 ETHTOOL_LINK_MODE_200000baseSR4_Full_BIT, 2746 ETHTOOL_LINK_MODE_200000baseLR4_ER4_FR4_Full_BIT, 2747 ETHTOOL_LINK_MODE_200000baseDR4_Full_BIT, 2748 ETHTOOL_LINK_MODE_200000baseCR4_Full_BIT, 2749 }; 2750 2751 #define MLXSW_SP2_MASK_ETHTOOL_200GAUI_4_200GBASE_CR4_KR4_LEN \ 2752 ARRAY_SIZE(mlxsw_sp2_mask_ethtool_200gaui_4_200gbase_cr4_kr4) 2753 2754 struct mlxsw_sp2_port_link_mode { 2755 const enum ethtool_link_mode_bit_indices *mask_ethtool; 2756 int m_ethtool_len; 2757 u32 mask; 2758 u32 speed; 2759 }; 2760 2761 static const struct mlxsw_sp2_port_link_mode mlxsw_sp2_port_link_mode[] = { 2762 { 2763 .mask = MLXSW_REG_PTYS_EXT_ETH_SPEED_SGMII_100M, 2764 .mask_ethtool = mlxsw_sp2_mask_ethtool_sgmii_100m, 2765 .m_ethtool_len = MLXSW_SP2_MASK_ETHTOOL_SGMII_100M_LEN, 2766 .speed = SPEED_100, 2767 }, 2768 { 2769 .mask = MLXSW_REG_PTYS_EXT_ETH_SPEED_1000BASE_X_SGMII, 2770 .mask_ethtool = mlxsw_sp2_mask_ethtool_1000base_x_sgmii, 2771 .m_ethtool_len = MLXSW_SP2_MASK_ETHTOOL_1000BASE_X_SGMII_LEN, 2772 .speed = SPEED_1000, 2773 }, 2774 { 2775 .mask = MLXSW_REG_PTYS_EXT_ETH_SPEED_2_5GBASE_X_2_5GMII, 2776 .mask_ethtool = mlxsw_sp2_mask_ethtool_2_5gbase_x_2_5gmii, 2777 .m_ethtool_len = MLXSW_SP2_MASK_ETHTOOL_2_5GBASE_X_2_5GMII_LEN, 2778 .speed = SPEED_2500, 2779 }, 2780 { 2781 .mask = MLXSW_REG_PTYS_EXT_ETH_SPEED_5GBASE_R, 2782 .mask_ethtool = mlxsw_sp2_mask_ethtool_5gbase_r, 2783 .m_ethtool_len = MLXSW_SP2_MASK_ETHTOOL_5GBASE_R_LEN, 2784 .speed = SPEED_5000, 2785 }, 2786 { 2787 .mask = MLXSW_REG_PTYS_EXT_ETH_SPEED_XFI_XAUI_1_10G, 2788 .mask_ethtool = mlxsw_sp2_mask_ethtool_xfi_xaui_1_10g, 2789 .m_ethtool_len = MLXSW_SP2_MASK_ETHTOOL_XFI_XAUI_1_10G_LEN, 2790 .speed = SPEED_10000, 2791 }, 2792 { 2793 .mask = MLXSW_REG_PTYS_EXT_ETH_SPEED_XLAUI_4_XLPPI_4_40G, 2794 .mask_ethtool = mlxsw_sp2_mask_ethtool_xlaui_4_xlppi_4_40g, 2795 .m_ethtool_len = MLXSW_SP2_MASK_ETHTOOL_XLAUI_4_XLPPI_4_40G_LEN, 2796 .speed = SPEED_40000, 2797 }, 2798 { 2799 .mask = MLXSW_REG_PTYS_EXT_ETH_SPEED_25GAUI_1_25GBASE_CR_KR, 2800 .mask_ethtool = mlxsw_sp2_mask_ethtool_25gaui_1_25gbase_cr_kr, 2801 .m_ethtool_len = MLXSW_SP2_MASK_ETHTOOL_25GAUI_1_25GBASE_CR_KR_LEN, 2802 .speed = SPEED_25000, 2803 }, 2804 { 2805 .mask = MLXSW_REG_PTYS_EXT_ETH_SPEED_50GAUI_2_LAUI_2_50GBASE_CR2_KR2, 2806 .mask_ethtool = mlxsw_sp2_mask_ethtool_50gaui_2_laui_2_50gbase_cr2_kr2, 2807 .m_ethtool_len = MLXSW_SP2_MASK_ETHTOOL_50GAUI_2_LAUI_2_50GBASE_CR2_KR2_LEN, 2808 .speed = SPEED_50000, 2809 }, 2810 { 2811 .mask = MLXSW_REG_PTYS_EXT_ETH_SPEED_50GAUI_1_LAUI_1_50GBASE_CR_KR, 2812 .mask_ethtool = mlxsw_sp2_mask_ethtool_50gaui_1_laui_1_50gbase_cr_kr, 2813 .m_ethtool_len = MLXSW_SP2_MASK_ETHTOOL_50GAUI_1_LAUI_1_50GBASE_CR_KR_LEN, 2814 .speed = SPEED_50000, 2815 }, 2816 { 2817 .mask = MLXSW_REG_PTYS_EXT_ETH_SPEED_CAUI_4_100GBASE_CR4_KR4, 2818 .mask_ethtool = mlxsw_sp2_mask_ethtool_caui_4_100gbase_cr4_kr4, 2819 .m_ethtool_len = MLXSW_SP2_MASK_ETHTOOL_CAUI_4_100GBASE_CR4_KR4_LEN, 2820 .speed = SPEED_100000, 2821 }, 2822 { 2823 .mask = MLXSW_REG_PTYS_EXT_ETH_SPEED_100GAUI_2_100GBASE_CR2_KR2, 2824 .mask_ethtool = mlxsw_sp2_mask_ethtool_100gaui_2_100gbase_cr2_kr2, 2825 .m_ethtool_len = MLXSW_SP2_MASK_ETHTOOL_100GAUI_2_100GBASE_CR2_KR2_LEN, 2826 .speed = SPEED_100000, 2827 }, 2828 { 2829 .mask = MLXSW_REG_PTYS_EXT_ETH_SPEED_200GAUI_4_200GBASE_CR4_KR4, 2830 .mask_ethtool = mlxsw_sp2_mask_ethtool_200gaui_4_200gbase_cr4_kr4, 2831 .m_ethtool_len = MLXSW_SP2_MASK_ETHTOOL_200GAUI_4_200GBASE_CR4_KR4_LEN, 2832 .speed = SPEED_200000, 2833 }, 2834 }; 2835 2836 #define MLXSW_SP2_PORT_LINK_MODE_LEN ARRAY_SIZE(mlxsw_sp2_port_link_mode) 2837 2838 static void 2839 mlxsw_sp2_from_ptys_supported_port(struct mlxsw_sp *mlxsw_sp, 2840 u32 ptys_eth_proto, 2841 struct ethtool_link_ksettings *cmd) 2842 { 2843 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); 2844 ethtool_link_ksettings_add_link_mode(cmd, supported, Backplane); 2845 } 2846 2847 static void 2848 mlxsw_sp2_set_bit_ethtool(const struct mlxsw_sp2_port_link_mode *link_mode, 2849 unsigned long *mode) 2850 { 2851 int i; 2852 2853 for (i = 0; i < link_mode->m_ethtool_len; i++) 2854 __set_bit(link_mode->mask_ethtool[i], mode); 2855 } 2856 2857 static void 2858 mlxsw_sp2_from_ptys_link(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto, 2859 unsigned long *mode) 2860 { 2861 int i; 2862 2863 for (i = 0; i < MLXSW_SP2_PORT_LINK_MODE_LEN; i++) { 2864 if (ptys_eth_proto & mlxsw_sp2_port_link_mode[i].mask) 2865 mlxsw_sp2_set_bit_ethtool(&mlxsw_sp2_port_link_mode[i], 2866 mode); 2867 } 2868 } 2869 2870 static void 2871 mlxsw_sp2_from_ptys_speed_duplex(struct mlxsw_sp *mlxsw_sp, bool carrier_ok, 2872 u32 ptys_eth_proto, 2873 struct ethtool_link_ksettings *cmd) 2874 { 2875 u32 speed = SPEED_UNKNOWN; 2876 u8 duplex = DUPLEX_UNKNOWN; 2877 int i; 2878 2879 if (!carrier_ok) 2880 goto out; 2881 2882 for (i = 0; i < MLXSW_SP2_PORT_LINK_MODE_LEN; i++) { 2883 if (ptys_eth_proto & mlxsw_sp2_port_link_mode[i].mask) { 2884 speed = mlxsw_sp2_port_link_mode[i].speed; 2885 duplex = DUPLEX_FULL; 2886 break; 2887 } 2888 } 2889 out: 2890 cmd->base.speed = speed; 2891 cmd->base.duplex = duplex; 2892 } 2893 2894 static bool 2895 mlxsw_sp2_test_bit_ethtool(const struct mlxsw_sp2_port_link_mode *link_mode, 2896 const unsigned long *mode) 2897 { 2898 int cnt = 0; 2899 int i; 2900 2901 for (i = 0; i < link_mode->m_ethtool_len; i++) { 2902 if (test_bit(link_mode->mask_ethtool[i], mode)) 2903 cnt++; 2904 } 2905 2906 return cnt == link_mode->m_ethtool_len; 2907 } 2908 2909 static u32 2910 mlxsw_sp2_to_ptys_advert_link(struct mlxsw_sp *mlxsw_sp, 2911 const struct ethtool_link_ksettings *cmd) 2912 { 2913 u32 ptys_proto = 0; 2914 int i; 2915 2916 for (i = 0; i < MLXSW_SP2_PORT_LINK_MODE_LEN; i++) { 2917 if (mlxsw_sp2_test_bit_ethtool(&mlxsw_sp2_port_link_mode[i], 2918 cmd->link_modes.advertising)) 2919 ptys_proto |= mlxsw_sp2_port_link_mode[i].mask; 2920 } 2921 return ptys_proto; 2922 } 2923 2924 static u32 mlxsw_sp2_to_ptys_speed(struct mlxsw_sp *mlxsw_sp, u32 speed) 2925 { 2926 u32 ptys_proto = 0; 2927 int i; 2928 2929 for (i = 0; i < MLXSW_SP2_PORT_LINK_MODE_LEN; i++) { 2930 if (speed == mlxsw_sp2_port_link_mode[i].speed) 2931 ptys_proto |= mlxsw_sp2_port_link_mode[i].mask; 2932 } 2933 return ptys_proto; 2934 } 2935 2936 static u32 2937 mlxsw_sp2_to_ptys_upper_speed(struct mlxsw_sp *mlxsw_sp, u32 upper_speed) 2938 { 2939 u32 ptys_proto = 0; 2940 int i; 2941 2942 for (i = 0; i < MLXSW_SP2_PORT_LINK_MODE_LEN; i++) { 2943 if (mlxsw_sp2_port_link_mode[i].speed <= upper_speed) 2944 ptys_proto |= mlxsw_sp2_port_link_mode[i].mask; 2945 } 2946 return ptys_proto; 2947 } 2948 2949 static int 2950 mlxsw_sp2_port_speed_base(struct mlxsw_sp *mlxsw_sp, u8 local_port, 2951 u32 *base_speed) 2952 { 2953 char ptys_pl[MLXSW_REG_PTYS_LEN]; 2954 u32 eth_proto_cap; 2955 int err; 2956 2957 /* In Spectrum-2, the speed of 1x can change from port to port, so query 2958 * it from firmware. 2959 */ 2960 mlxsw_reg_ptys_ext_eth_pack(ptys_pl, local_port, 0, false); 2961 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); 2962 if (err) 2963 return err; 2964 mlxsw_reg_ptys_ext_eth_unpack(ptys_pl, ð_proto_cap, NULL, NULL); 2965 2966 if (eth_proto_cap & 2967 MLXSW_REG_PTYS_EXT_ETH_SPEED_50GAUI_1_LAUI_1_50GBASE_CR_KR) { 2968 *base_speed = MLXSW_SP_PORT_BASE_SPEED_50G; 2969 return 0; 2970 } 2971 2972 if (eth_proto_cap & 2973 MLXSW_REG_PTYS_EXT_ETH_SPEED_25GAUI_1_25GBASE_CR_KR) { 2974 *base_speed = MLXSW_SP_PORT_BASE_SPEED_25G; 2975 return 0; 2976 } 2977 2978 return -EIO; 2979 } 2980 2981 static void 2982 mlxsw_sp2_reg_ptys_eth_pack(struct mlxsw_sp *mlxsw_sp, char *payload, 2983 u8 local_port, u32 proto_admin, 2984 bool autoneg) 2985 { 2986 mlxsw_reg_ptys_ext_eth_pack(payload, local_port, proto_admin, autoneg); 2987 } 2988 2989 static void 2990 mlxsw_sp2_reg_ptys_eth_unpack(struct mlxsw_sp *mlxsw_sp, char *payload, 2991 u32 *p_eth_proto_cap, u32 *p_eth_proto_admin, 2992 u32 *p_eth_proto_oper) 2993 { 2994 mlxsw_reg_ptys_ext_eth_unpack(payload, p_eth_proto_cap, 2995 p_eth_proto_admin, p_eth_proto_oper); 2996 } 2997 2998 static const struct mlxsw_sp_port_type_speed_ops 2999 mlxsw_sp2_port_type_speed_ops = { 3000 .from_ptys_supported_port = mlxsw_sp2_from_ptys_supported_port, 3001 .from_ptys_link = mlxsw_sp2_from_ptys_link, 3002 .from_ptys_speed_duplex = mlxsw_sp2_from_ptys_speed_duplex, 3003 .to_ptys_advert_link = mlxsw_sp2_to_ptys_advert_link, 3004 .to_ptys_speed = mlxsw_sp2_to_ptys_speed, 3005 .to_ptys_upper_speed = mlxsw_sp2_to_ptys_upper_speed, 3006 .port_speed_base = mlxsw_sp2_port_speed_base, 3007 .reg_ptys_eth_pack = mlxsw_sp2_reg_ptys_eth_pack, 3008 .reg_ptys_eth_unpack = mlxsw_sp2_reg_ptys_eth_unpack, 3009 }; 3010 3011 static void 3012 mlxsw_sp_port_get_link_supported(struct mlxsw_sp *mlxsw_sp, u32 eth_proto_cap, 3013 struct ethtool_link_ksettings *cmd) 3014 { 3015 const struct mlxsw_sp_port_type_speed_ops *ops; 3016 3017 ops = mlxsw_sp->port_type_speed_ops; 3018 3019 ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause); 3020 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); 3021 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); 3022 3023 ops->from_ptys_supported_port(mlxsw_sp, eth_proto_cap, cmd); 3024 ops->from_ptys_link(mlxsw_sp, eth_proto_cap, cmd->link_modes.supported); 3025 } 3026 3027 static void 3028 mlxsw_sp_port_get_link_advertise(struct mlxsw_sp *mlxsw_sp, 3029 u32 eth_proto_admin, bool autoneg, 3030 struct ethtool_link_ksettings *cmd) 3031 { 3032 const struct mlxsw_sp_port_type_speed_ops *ops; 3033 3034 ops = mlxsw_sp->port_type_speed_ops; 3035 3036 if (!autoneg) 3037 return; 3038 3039 ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg); 3040 ops->from_ptys_link(mlxsw_sp, eth_proto_admin, 3041 cmd->link_modes.advertising); 3042 } 3043 3044 static u8 3045 mlxsw_sp_port_connector_port(enum mlxsw_reg_ptys_connector_type connector_type) 3046 { 3047 switch (connector_type) { 3048 case MLXSW_REG_PTYS_CONNECTOR_TYPE_UNKNOWN_OR_NO_CONNECTOR: 3049 return PORT_OTHER; 3050 case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_NONE: 3051 return PORT_NONE; 3052 case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_TP: 3053 return PORT_TP; 3054 case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_AUI: 3055 return PORT_AUI; 3056 case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_BNC: 3057 return PORT_BNC; 3058 case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_MII: 3059 return PORT_MII; 3060 case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_FIBRE: 3061 return PORT_FIBRE; 3062 case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_DA: 3063 return PORT_DA; 3064 case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_OTHER: 3065 return PORT_OTHER; 3066 default: 3067 WARN_ON_ONCE(1); 3068 return PORT_OTHER; 3069 } 3070 } 3071 3072 static int mlxsw_sp_port_get_link_ksettings(struct net_device *dev, 3073 struct ethtool_link_ksettings *cmd) 3074 { 3075 u32 eth_proto_cap, eth_proto_admin, eth_proto_oper; 3076 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 3077 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 3078 const struct mlxsw_sp_port_type_speed_ops *ops; 3079 char ptys_pl[MLXSW_REG_PTYS_LEN]; 3080 u8 connector_type; 3081 bool autoneg; 3082 int err; 3083 3084 ops = mlxsw_sp->port_type_speed_ops; 3085 3086 autoneg = mlxsw_sp_port->link.autoneg; 3087 ops->reg_ptys_eth_pack(mlxsw_sp, ptys_pl, mlxsw_sp_port->local_port, 3088 0, false); 3089 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); 3090 if (err) 3091 return err; 3092 ops->reg_ptys_eth_unpack(mlxsw_sp, ptys_pl, ð_proto_cap, 3093 ð_proto_admin, ð_proto_oper); 3094 3095 mlxsw_sp_port_get_link_supported(mlxsw_sp, eth_proto_cap, cmd); 3096 3097 mlxsw_sp_port_get_link_advertise(mlxsw_sp, eth_proto_admin, autoneg, 3098 cmd); 3099 3100 cmd->base.autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE; 3101 connector_type = mlxsw_reg_ptys_connector_type_get(ptys_pl); 3102 cmd->base.port = mlxsw_sp_port_connector_port(connector_type); 3103 ops->from_ptys_speed_duplex(mlxsw_sp, netif_carrier_ok(dev), 3104 eth_proto_oper, cmd); 3105 3106 return 0; 3107 } 3108 3109 static int 3110 mlxsw_sp_port_set_link_ksettings(struct net_device *dev, 3111 const struct ethtool_link_ksettings *cmd) 3112 { 3113 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 3114 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 3115 const struct mlxsw_sp_port_type_speed_ops *ops; 3116 char ptys_pl[MLXSW_REG_PTYS_LEN]; 3117 u32 eth_proto_cap, eth_proto_new; 3118 bool autoneg; 3119 int err; 3120 3121 ops = mlxsw_sp->port_type_speed_ops; 3122 3123 ops->reg_ptys_eth_pack(mlxsw_sp, ptys_pl, mlxsw_sp_port->local_port, 3124 0, false); 3125 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); 3126 if (err) 3127 return err; 3128 ops->reg_ptys_eth_unpack(mlxsw_sp, ptys_pl, ð_proto_cap, NULL, NULL); 3129 3130 autoneg = cmd->base.autoneg == AUTONEG_ENABLE; 3131 if (!autoneg && cmd->base.speed == SPEED_56000) { 3132 netdev_err(dev, "56G not supported with autoneg off\n"); 3133 return -EINVAL; 3134 } 3135 eth_proto_new = autoneg ? 3136 ops->to_ptys_advert_link(mlxsw_sp, cmd) : 3137 ops->to_ptys_speed(mlxsw_sp, cmd->base.speed); 3138 3139 eth_proto_new = eth_proto_new & eth_proto_cap; 3140 if (!eth_proto_new) { 3141 netdev_err(dev, "No supported speed requested\n"); 3142 return -EINVAL; 3143 } 3144 3145 ops->reg_ptys_eth_pack(mlxsw_sp, ptys_pl, mlxsw_sp_port->local_port, 3146 eth_proto_new, autoneg); 3147 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); 3148 if (err) 3149 return err; 3150 3151 mlxsw_sp_port->link.autoneg = autoneg; 3152 3153 if (!netif_running(dev)) 3154 return 0; 3155 3156 mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false); 3157 mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true); 3158 3159 return 0; 3160 } 3161 3162 static int mlxsw_sp_flash_device(struct net_device *dev, 3163 struct ethtool_flash *flash) 3164 { 3165 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 3166 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 3167 const struct firmware *firmware; 3168 int err; 3169 3170 if (flash->region != ETHTOOL_FLASH_ALL_REGIONS) 3171 return -EOPNOTSUPP; 3172 3173 dev_hold(dev); 3174 rtnl_unlock(); 3175 3176 err = request_firmware_direct(&firmware, flash->data, &dev->dev); 3177 if (err) 3178 goto out; 3179 err = mlxsw_sp_firmware_flash(mlxsw_sp, firmware); 3180 release_firmware(firmware); 3181 out: 3182 rtnl_lock(); 3183 dev_put(dev); 3184 return err; 3185 } 3186 3187 static int mlxsw_sp_get_module_info(struct net_device *netdev, 3188 struct ethtool_modinfo *modinfo) 3189 { 3190 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(netdev); 3191 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 3192 int err; 3193 3194 err = mlxsw_env_get_module_info(mlxsw_sp->core, 3195 mlxsw_sp_port->mapping.module, 3196 modinfo); 3197 3198 return err; 3199 } 3200 3201 static int mlxsw_sp_get_module_eeprom(struct net_device *netdev, 3202 struct ethtool_eeprom *ee, 3203 u8 *data) 3204 { 3205 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(netdev); 3206 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 3207 int err; 3208 3209 err = mlxsw_env_get_module_eeprom(netdev, mlxsw_sp->core, 3210 mlxsw_sp_port->mapping.module, ee, 3211 data); 3212 3213 return err; 3214 } 3215 3216 static const struct ethtool_ops mlxsw_sp_port_ethtool_ops = { 3217 .get_drvinfo = mlxsw_sp_port_get_drvinfo, 3218 .get_link = ethtool_op_get_link, 3219 .get_pauseparam = mlxsw_sp_port_get_pauseparam, 3220 .set_pauseparam = mlxsw_sp_port_set_pauseparam, 3221 .get_strings = mlxsw_sp_port_get_strings, 3222 .set_phys_id = mlxsw_sp_port_set_phys_id, 3223 .get_ethtool_stats = mlxsw_sp_port_get_stats, 3224 .get_sset_count = mlxsw_sp_port_get_sset_count, 3225 .get_link_ksettings = mlxsw_sp_port_get_link_ksettings, 3226 .set_link_ksettings = mlxsw_sp_port_set_link_ksettings, 3227 .flash_device = mlxsw_sp_flash_device, 3228 .get_module_info = mlxsw_sp_get_module_info, 3229 .get_module_eeprom = mlxsw_sp_get_module_eeprom, 3230 }; 3231 3232 static int 3233 mlxsw_sp_port_speed_by_width_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 width) 3234 { 3235 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 3236 const struct mlxsw_sp_port_type_speed_ops *ops; 3237 char ptys_pl[MLXSW_REG_PTYS_LEN]; 3238 u32 eth_proto_admin; 3239 u32 upper_speed; 3240 u32 base_speed; 3241 int err; 3242 3243 ops = mlxsw_sp->port_type_speed_ops; 3244 3245 err = ops->port_speed_base(mlxsw_sp, mlxsw_sp_port->local_port, 3246 &base_speed); 3247 if (err) 3248 return err; 3249 upper_speed = base_speed * width; 3250 3251 eth_proto_admin = ops->to_ptys_upper_speed(mlxsw_sp, upper_speed); 3252 ops->reg_ptys_eth_pack(mlxsw_sp, ptys_pl, mlxsw_sp_port->local_port, 3253 eth_proto_admin, mlxsw_sp_port->link.autoneg); 3254 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); 3255 } 3256 3257 int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port, 3258 enum mlxsw_reg_qeec_hr hr, u8 index, u8 next_index, 3259 bool dwrr, u8 dwrr_weight) 3260 { 3261 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 3262 char qeec_pl[MLXSW_REG_QEEC_LEN]; 3263 3264 mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index, 3265 next_index); 3266 mlxsw_reg_qeec_de_set(qeec_pl, true); 3267 mlxsw_reg_qeec_dwrr_set(qeec_pl, dwrr); 3268 mlxsw_reg_qeec_dwrr_weight_set(qeec_pl, dwrr_weight); 3269 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl); 3270 } 3271 3272 int mlxsw_sp_port_ets_maxrate_set(struct mlxsw_sp_port *mlxsw_sp_port, 3273 enum mlxsw_reg_qeec_hr hr, u8 index, 3274 u8 next_index, u32 maxrate) 3275 { 3276 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 3277 char qeec_pl[MLXSW_REG_QEEC_LEN]; 3278 3279 mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index, 3280 next_index); 3281 mlxsw_reg_qeec_mase_set(qeec_pl, true); 3282 mlxsw_reg_qeec_max_shaper_rate_set(qeec_pl, maxrate); 3283 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl); 3284 } 3285 3286 static int mlxsw_sp_port_min_bw_set(struct mlxsw_sp_port *mlxsw_sp_port, 3287 enum mlxsw_reg_qeec_hr hr, u8 index, 3288 u8 next_index, u32 minrate) 3289 { 3290 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 3291 char qeec_pl[MLXSW_REG_QEEC_LEN]; 3292 3293 mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index, 3294 next_index); 3295 mlxsw_reg_qeec_mise_set(qeec_pl, true); 3296 mlxsw_reg_qeec_min_shaper_rate_set(qeec_pl, minrate); 3297 3298 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl); 3299 } 3300 3301 int mlxsw_sp_port_prio_tc_set(struct mlxsw_sp_port *mlxsw_sp_port, 3302 u8 switch_prio, u8 tclass) 3303 { 3304 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 3305 char qtct_pl[MLXSW_REG_QTCT_LEN]; 3306 3307 mlxsw_reg_qtct_pack(qtct_pl, mlxsw_sp_port->local_port, switch_prio, 3308 tclass); 3309 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qtct), qtct_pl); 3310 } 3311 3312 static int mlxsw_sp_port_ets_init(struct mlxsw_sp_port *mlxsw_sp_port) 3313 { 3314 int err, i; 3315 3316 /* Setup the elements hierarcy, so that each TC is linked to 3317 * one subgroup, which are all member in the same group. 3318 */ 3319 err = mlxsw_sp_port_ets_set(mlxsw_sp_port, 3320 MLXSW_REG_QEEC_HIERARCY_GROUP, 0, 0, false, 3321 0); 3322 if (err) 3323 return err; 3324 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { 3325 err = mlxsw_sp_port_ets_set(mlxsw_sp_port, 3326 MLXSW_REG_QEEC_HIERARCY_SUBGROUP, i, 3327 0, false, 0); 3328 if (err) 3329 return err; 3330 } 3331 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { 3332 err = mlxsw_sp_port_ets_set(mlxsw_sp_port, 3333 MLXSW_REG_QEEC_HIERARCY_TC, i, i, 3334 false, 0); 3335 if (err) 3336 return err; 3337 3338 err = mlxsw_sp_port_ets_set(mlxsw_sp_port, 3339 MLXSW_REG_QEEC_HIERARCY_TC, 3340 i + 8, i, 3341 true, 100); 3342 if (err) 3343 return err; 3344 } 3345 3346 /* Make sure the max shaper is disabled in all hierarchies that 3347 * support it. 3348 */ 3349 err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port, 3350 MLXSW_REG_QEEC_HIERARCY_PORT, 0, 0, 3351 MLXSW_REG_QEEC_MAS_DIS); 3352 if (err) 3353 return err; 3354 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { 3355 err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port, 3356 MLXSW_REG_QEEC_HIERARCY_SUBGROUP, 3357 i, 0, 3358 MLXSW_REG_QEEC_MAS_DIS); 3359 if (err) 3360 return err; 3361 } 3362 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { 3363 err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port, 3364 MLXSW_REG_QEEC_HIERARCY_TC, 3365 i, i, 3366 MLXSW_REG_QEEC_MAS_DIS); 3367 if (err) 3368 return err; 3369 3370 err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port, 3371 MLXSW_REG_QEEC_HIERARCY_TC, 3372 i + 8, i, 3373 MLXSW_REG_QEEC_MAS_DIS); 3374 if (err) 3375 return err; 3376 } 3377 3378 /* Configure the min shaper for multicast TCs. */ 3379 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { 3380 err = mlxsw_sp_port_min_bw_set(mlxsw_sp_port, 3381 MLXSW_REG_QEEC_HIERARCY_TC, 3382 i + 8, i, 3383 MLXSW_REG_QEEC_MIS_MIN); 3384 if (err) 3385 return err; 3386 } 3387 3388 /* Map all priorities to traffic class 0. */ 3389 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { 3390 err = mlxsw_sp_port_prio_tc_set(mlxsw_sp_port, i, 0); 3391 if (err) 3392 return err; 3393 } 3394 3395 return 0; 3396 } 3397 3398 static int mlxsw_sp_port_tc_mc_mode_set(struct mlxsw_sp_port *mlxsw_sp_port, 3399 bool enable) 3400 { 3401 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 3402 char qtctm_pl[MLXSW_REG_QTCTM_LEN]; 3403 3404 mlxsw_reg_qtctm_pack(qtctm_pl, mlxsw_sp_port->local_port, enable); 3405 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qtctm), qtctm_pl); 3406 } 3407 3408 static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port, 3409 bool split, u8 module, u8 width, u8 lane) 3410 { 3411 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 3412 struct mlxsw_sp_port *mlxsw_sp_port; 3413 struct net_device *dev; 3414 int err; 3415 3416 err = mlxsw_core_port_init(mlxsw_sp->core, local_port, 3417 module + 1, split, lane / width, 3418 mlxsw_sp->base_mac, 3419 sizeof(mlxsw_sp->base_mac)); 3420 if (err) { 3421 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to init core port\n", 3422 local_port); 3423 return err; 3424 } 3425 3426 dev = alloc_etherdev(sizeof(struct mlxsw_sp_port)); 3427 if (!dev) { 3428 err = -ENOMEM; 3429 goto err_alloc_etherdev; 3430 } 3431 SET_NETDEV_DEV(dev, mlxsw_sp->bus_info->dev); 3432 mlxsw_sp_port = netdev_priv(dev); 3433 mlxsw_sp_port->dev = dev; 3434 mlxsw_sp_port->mlxsw_sp = mlxsw_sp; 3435 mlxsw_sp_port->local_port = local_port; 3436 mlxsw_sp_port->pvid = MLXSW_SP_DEFAULT_VID; 3437 mlxsw_sp_port->split = split; 3438 mlxsw_sp_port->mapping.module = module; 3439 mlxsw_sp_port->mapping.width = width; 3440 mlxsw_sp_port->mapping.lane = lane; 3441 mlxsw_sp_port->link.autoneg = 1; 3442 INIT_LIST_HEAD(&mlxsw_sp_port->vlans_list); 3443 INIT_LIST_HEAD(&mlxsw_sp_port->mall_tc_list); 3444 3445 mlxsw_sp_port->pcpu_stats = 3446 netdev_alloc_pcpu_stats(struct mlxsw_sp_port_pcpu_stats); 3447 if (!mlxsw_sp_port->pcpu_stats) { 3448 err = -ENOMEM; 3449 goto err_alloc_stats; 3450 } 3451 3452 mlxsw_sp_port->sample = kzalloc(sizeof(*mlxsw_sp_port->sample), 3453 GFP_KERNEL); 3454 if (!mlxsw_sp_port->sample) { 3455 err = -ENOMEM; 3456 goto err_alloc_sample; 3457 } 3458 3459 INIT_DELAYED_WORK(&mlxsw_sp_port->periodic_hw_stats.update_dw, 3460 &update_stats_cache); 3461 3462 dev->netdev_ops = &mlxsw_sp_port_netdev_ops; 3463 dev->ethtool_ops = &mlxsw_sp_port_ethtool_ops; 3464 3465 err = mlxsw_sp_port_module_map(mlxsw_sp_port, module, width, lane); 3466 if (err) { 3467 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to map module\n", 3468 mlxsw_sp_port->local_port); 3469 goto err_port_module_map; 3470 } 3471 3472 err = mlxsw_sp_port_swid_set(mlxsw_sp_port, 0); 3473 if (err) { 3474 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set SWID\n", 3475 mlxsw_sp_port->local_port); 3476 goto err_port_swid_set; 3477 } 3478 3479 err = mlxsw_sp_port_dev_addr_init(mlxsw_sp_port); 3480 if (err) { 3481 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unable to init port mac address\n", 3482 mlxsw_sp_port->local_port); 3483 goto err_dev_addr_init; 3484 } 3485 3486 netif_carrier_off(dev); 3487 3488 dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_LLTX | NETIF_F_SG | 3489 NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_TC; 3490 dev->hw_features |= NETIF_F_HW_TC | NETIF_F_LOOPBACK; 3491 3492 dev->min_mtu = 0; 3493 dev->max_mtu = ETH_MAX_MTU; 3494 3495 /* Each packet needs to have a Tx header (metadata) on top all other 3496 * headers. 3497 */ 3498 dev->needed_headroom = MLXSW_TXHDR_LEN; 3499 3500 err = mlxsw_sp_port_system_port_mapping_set(mlxsw_sp_port); 3501 if (err) { 3502 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set system port mapping\n", 3503 mlxsw_sp_port->local_port); 3504 goto err_port_system_port_mapping_set; 3505 } 3506 3507 err = mlxsw_sp_port_speed_by_width_set(mlxsw_sp_port, width); 3508 if (err) { 3509 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to enable speeds\n", 3510 mlxsw_sp_port->local_port); 3511 goto err_port_speed_by_width_set; 3512 } 3513 3514 err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, ETH_DATA_LEN); 3515 if (err) { 3516 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set MTU\n", 3517 mlxsw_sp_port->local_port); 3518 goto err_port_mtu_set; 3519 } 3520 3521 err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false); 3522 if (err) 3523 goto err_port_admin_status_set; 3524 3525 err = mlxsw_sp_port_buffers_init(mlxsw_sp_port); 3526 if (err) { 3527 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize buffers\n", 3528 mlxsw_sp_port->local_port); 3529 goto err_port_buffers_init; 3530 } 3531 3532 err = mlxsw_sp_port_ets_init(mlxsw_sp_port); 3533 if (err) { 3534 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize ETS\n", 3535 mlxsw_sp_port->local_port); 3536 goto err_port_ets_init; 3537 } 3538 3539 err = mlxsw_sp_port_tc_mc_mode_set(mlxsw_sp_port, true); 3540 if (err) { 3541 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize TC MC mode\n", 3542 mlxsw_sp_port->local_port); 3543 goto err_port_tc_mc_mode; 3544 } 3545 3546 /* ETS and buffers must be initialized before DCB. */ 3547 err = mlxsw_sp_port_dcb_init(mlxsw_sp_port); 3548 if (err) { 3549 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize DCB\n", 3550 mlxsw_sp_port->local_port); 3551 goto err_port_dcb_init; 3552 } 3553 3554 err = mlxsw_sp_port_fids_init(mlxsw_sp_port); 3555 if (err) { 3556 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize FIDs\n", 3557 mlxsw_sp_port->local_port); 3558 goto err_port_fids_init; 3559 } 3560 3561 err = mlxsw_sp_tc_qdisc_init(mlxsw_sp_port); 3562 if (err) { 3563 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize TC qdiscs\n", 3564 mlxsw_sp_port->local_port); 3565 goto err_port_qdiscs_init; 3566 } 3567 3568 err = mlxsw_sp_port_nve_init(mlxsw_sp_port); 3569 if (err) { 3570 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize NVE\n", 3571 mlxsw_sp_port->local_port); 3572 goto err_port_nve_init; 3573 } 3574 3575 err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, MLXSW_SP_DEFAULT_VID); 3576 if (err) { 3577 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set PVID\n", 3578 mlxsw_sp_port->local_port); 3579 goto err_port_pvid_set; 3580 } 3581 3582 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_create(mlxsw_sp_port, 3583 MLXSW_SP_DEFAULT_VID); 3584 if (IS_ERR(mlxsw_sp_port_vlan)) { 3585 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to create VID 1\n", 3586 mlxsw_sp_port->local_port); 3587 err = PTR_ERR(mlxsw_sp_port_vlan); 3588 goto err_port_vlan_create; 3589 } 3590 mlxsw_sp_port->default_vlan = mlxsw_sp_port_vlan; 3591 3592 mlxsw_sp->ports[local_port] = mlxsw_sp_port; 3593 err = register_netdev(dev); 3594 if (err) { 3595 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to register netdev\n", 3596 mlxsw_sp_port->local_port); 3597 goto err_register_netdev; 3598 } 3599 3600 mlxsw_core_port_eth_set(mlxsw_sp->core, mlxsw_sp_port->local_port, 3601 mlxsw_sp_port, dev); 3602 mlxsw_core_schedule_dw(&mlxsw_sp_port->periodic_hw_stats.update_dw, 0); 3603 return 0; 3604 3605 err_register_netdev: 3606 mlxsw_sp->ports[local_port] = NULL; 3607 mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan); 3608 err_port_vlan_create: 3609 err_port_pvid_set: 3610 mlxsw_sp_port_nve_fini(mlxsw_sp_port); 3611 err_port_nve_init: 3612 mlxsw_sp_tc_qdisc_fini(mlxsw_sp_port); 3613 err_port_qdiscs_init: 3614 mlxsw_sp_port_fids_fini(mlxsw_sp_port); 3615 err_port_fids_init: 3616 mlxsw_sp_port_dcb_fini(mlxsw_sp_port); 3617 err_port_dcb_init: 3618 mlxsw_sp_port_tc_mc_mode_set(mlxsw_sp_port, false); 3619 err_port_tc_mc_mode: 3620 err_port_ets_init: 3621 err_port_buffers_init: 3622 err_port_admin_status_set: 3623 err_port_mtu_set: 3624 err_port_speed_by_width_set: 3625 err_port_system_port_mapping_set: 3626 err_dev_addr_init: 3627 mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT); 3628 err_port_swid_set: 3629 mlxsw_sp_port_module_unmap(mlxsw_sp_port); 3630 err_port_module_map: 3631 kfree(mlxsw_sp_port->sample); 3632 err_alloc_sample: 3633 free_percpu(mlxsw_sp_port->pcpu_stats); 3634 err_alloc_stats: 3635 free_netdev(dev); 3636 err_alloc_etherdev: 3637 mlxsw_core_port_fini(mlxsw_sp->core, local_port); 3638 return err; 3639 } 3640 3641 static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port) 3642 { 3643 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port]; 3644 3645 cancel_delayed_work_sync(&mlxsw_sp_port->periodic_hw_stats.update_dw); 3646 mlxsw_core_port_clear(mlxsw_sp->core, local_port, mlxsw_sp); 3647 unregister_netdev(mlxsw_sp_port->dev); /* This calls ndo_stop */ 3648 mlxsw_sp->ports[local_port] = NULL; 3649 mlxsw_sp_port_vlan_flush(mlxsw_sp_port, true); 3650 mlxsw_sp_port_nve_fini(mlxsw_sp_port); 3651 mlxsw_sp_tc_qdisc_fini(mlxsw_sp_port); 3652 mlxsw_sp_port_fids_fini(mlxsw_sp_port); 3653 mlxsw_sp_port_dcb_fini(mlxsw_sp_port); 3654 mlxsw_sp_port_tc_mc_mode_set(mlxsw_sp_port, false); 3655 mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT); 3656 mlxsw_sp_port_module_unmap(mlxsw_sp_port); 3657 kfree(mlxsw_sp_port->sample); 3658 free_percpu(mlxsw_sp_port->pcpu_stats); 3659 WARN_ON_ONCE(!list_empty(&mlxsw_sp_port->vlans_list)); 3660 free_netdev(mlxsw_sp_port->dev); 3661 mlxsw_core_port_fini(mlxsw_sp->core, local_port); 3662 } 3663 3664 static bool mlxsw_sp_port_created(struct mlxsw_sp *mlxsw_sp, u8 local_port) 3665 { 3666 return mlxsw_sp->ports[local_port] != NULL; 3667 } 3668 3669 static void mlxsw_sp_ports_remove(struct mlxsw_sp *mlxsw_sp) 3670 { 3671 int i; 3672 3673 for (i = 1; i < mlxsw_core_max_ports(mlxsw_sp->core); i++) 3674 if (mlxsw_sp_port_created(mlxsw_sp, i)) 3675 mlxsw_sp_port_remove(mlxsw_sp, i); 3676 kfree(mlxsw_sp->port_to_module); 3677 kfree(mlxsw_sp->ports); 3678 } 3679 3680 static int mlxsw_sp_ports_create(struct mlxsw_sp *mlxsw_sp) 3681 { 3682 unsigned int max_ports = mlxsw_core_max_ports(mlxsw_sp->core); 3683 u8 module, width, lane; 3684 size_t alloc_size; 3685 int i; 3686 int err; 3687 3688 alloc_size = sizeof(struct mlxsw_sp_port *) * max_ports; 3689 mlxsw_sp->ports = kzalloc(alloc_size, GFP_KERNEL); 3690 if (!mlxsw_sp->ports) 3691 return -ENOMEM; 3692 3693 mlxsw_sp->port_to_module = kmalloc_array(max_ports, sizeof(int), 3694 GFP_KERNEL); 3695 if (!mlxsw_sp->port_to_module) { 3696 err = -ENOMEM; 3697 goto err_port_to_module_alloc; 3698 } 3699 3700 for (i = 1; i < max_ports; i++) { 3701 /* Mark as invalid */ 3702 mlxsw_sp->port_to_module[i] = -1; 3703 3704 err = mlxsw_sp_port_module_info_get(mlxsw_sp, i, &module, 3705 &width, &lane); 3706 if (err) 3707 goto err_port_module_info_get; 3708 if (!width) 3709 continue; 3710 mlxsw_sp->port_to_module[i] = module; 3711 err = mlxsw_sp_port_create(mlxsw_sp, i, false, 3712 module, width, lane); 3713 if (err) 3714 goto err_port_create; 3715 } 3716 return 0; 3717 3718 err_port_create: 3719 err_port_module_info_get: 3720 for (i--; i >= 1; i--) 3721 if (mlxsw_sp_port_created(mlxsw_sp, i)) 3722 mlxsw_sp_port_remove(mlxsw_sp, i); 3723 kfree(mlxsw_sp->port_to_module); 3724 err_port_to_module_alloc: 3725 kfree(mlxsw_sp->ports); 3726 return err; 3727 } 3728 3729 static u8 mlxsw_sp_cluster_base_port_get(u8 local_port) 3730 { 3731 u8 offset = (local_port - 1) % MLXSW_SP_PORTS_PER_CLUSTER_MAX; 3732 3733 return local_port - offset; 3734 } 3735 3736 static int mlxsw_sp_port_split_create(struct mlxsw_sp *mlxsw_sp, u8 base_port, 3737 u8 module, unsigned int count, u8 offset) 3738 { 3739 u8 width = MLXSW_PORT_MODULE_MAX_WIDTH / count; 3740 int err, i; 3741 3742 for (i = 0; i < count; i++) { 3743 err = mlxsw_sp_port_create(mlxsw_sp, base_port + i * offset, 3744 true, module, width, i * width); 3745 if (err) 3746 goto err_port_create; 3747 } 3748 3749 return 0; 3750 3751 err_port_create: 3752 for (i--; i >= 0; i--) 3753 if (mlxsw_sp_port_created(mlxsw_sp, base_port + i * offset)) 3754 mlxsw_sp_port_remove(mlxsw_sp, base_port + i * offset); 3755 return err; 3756 } 3757 3758 static void mlxsw_sp_port_unsplit_create(struct mlxsw_sp *mlxsw_sp, 3759 u8 base_port, unsigned int count) 3760 { 3761 u8 local_port, module, width = MLXSW_PORT_MODULE_MAX_WIDTH; 3762 int i; 3763 3764 /* Split by four means we need to re-create two ports, otherwise 3765 * only one. 3766 */ 3767 count = count / 2; 3768 3769 for (i = 0; i < count; i++) { 3770 local_port = base_port + i * 2; 3771 if (mlxsw_sp->port_to_module[local_port] < 0) 3772 continue; 3773 module = mlxsw_sp->port_to_module[local_port]; 3774 3775 mlxsw_sp_port_create(mlxsw_sp, local_port, false, module, 3776 width, 0); 3777 } 3778 } 3779 3780 static int mlxsw_sp_port_split(struct mlxsw_core *mlxsw_core, u8 local_port, 3781 unsigned int count, 3782 struct netlink_ext_ack *extack) 3783 { 3784 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); 3785 u8 local_ports_in_1x, local_ports_in_2x, offset; 3786 struct mlxsw_sp_port *mlxsw_sp_port; 3787 u8 module, cur_width, base_port; 3788 int i; 3789 int err; 3790 3791 if (!MLXSW_CORE_RES_VALID(mlxsw_core, LOCAL_PORTS_IN_1X) || 3792 !MLXSW_CORE_RES_VALID(mlxsw_core, LOCAL_PORTS_IN_2X)) 3793 return -EIO; 3794 3795 local_ports_in_1x = MLXSW_CORE_RES_GET(mlxsw_core, LOCAL_PORTS_IN_1X); 3796 local_ports_in_2x = MLXSW_CORE_RES_GET(mlxsw_core, LOCAL_PORTS_IN_2X); 3797 3798 mlxsw_sp_port = mlxsw_sp->ports[local_port]; 3799 if (!mlxsw_sp_port) { 3800 dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n", 3801 local_port); 3802 NL_SET_ERR_MSG_MOD(extack, "Port number does not exist"); 3803 return -EINVAL; 3804 } 3805 3806 module = mlxsw_sp_port->mapping.module; 3807 cur_width = mlxsw_sp_port->mapping.width; 3808 3809 if (count != 2 && count != 4) { 3810 netdev_err(mlxsw_sp_port->dev, "Port can only be split into 2 or 4 ports\n"); 3811 NL_SET_ERR_MSG_MOD(extack, "Port can only be split into 2 or 4 ports"); 3812 return -EINVAL; 3813 } 3814 3815 if (cur_width != MLXSW_PORT_MODULE_MAX_WIDTH) { 3816 netdev_err(mlxsw_sp_port->dev, "Port cannot be split further\n"); 3817 NL_SET_ERR_MSG_MOD(extack, "Port cannot be split further"); 3818 return -EINVAL; 3819 } 3820 3821 /* Make sure we have enough slave (even) ports for the split. */ 3822 if (count == 2) { 3823 offset = local_ports_in_2x; 3824 base_port = local_port; 3825 if (mlxsw_sp->ports[base_port + local_ports_in_2x]) { 3826 netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n"); 3827 NL_SET_ERR_MSG_MOD(extack, "Invalid split configuration"); 3828 return -EINVAL; 3829 } 3830 } else { 3831 offset = local_ports_in_1x; 3832 base_port = mlxsw_sp_cluster_base_port_get(local_port); 3833 if (mlxsw_sp->ports[base_port + 1] || 3834 mlxsw_sp->ports[base_port + 3]) { 3835 netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n"); 3836 NL_SET_ERR_MSG_MOD(extack, "Invalid split configuration"); 3837 return -EINVAL; 3838 } 3839 } 3840 3841 for (i = 0; i < count; i++) 3842 if (mlxsw_sp_port_created(mlxsw_sp, base_port + i * offset)) 3843 mlxsw_sp_port_remove(mlxsw_sp, base_port + i * offset); 3844 3845 err = mlxsw_sp_port_split_create(mlxsw_sp, base_port, module, count, 3846 offset); 3847 if (err) { 3848 dev_err(mlxsw_sp->bus_info->dev, "Failed to create split ports\n"); 3849 goto err_port_split_create; 3850 } 3851 3852 return 0; 3853 3854 err_port_split_create: 3855 mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count); 3856 return err; 3857 } 3858 3859 static int mlxsw_sp_port_unsplit(struct mlxsw_core *mlxsw_core, u8 local_port, 3860 struct netlink_ext_ack *extack) 3861 { 3862 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); 3863 u8 local_ports_in_1x, local_ports_in_2x, offset; 3864 struct mlxsw_sp_port *mlxsw_sp_port; 3865 u8 cur_width, base_port; 3866 unsigned int count; 3867 int i; 3868 3869 if (!MLXSW_CORE_RES_VALID(mlxsw_core, LOCAL_PORTS_IN_1X) || 3870 !MLXSW_CORE_RES_VALID(mlxsw_core, LOCAL_PORTS_IN_2X)) 3871 return -EIO; 3872 3873 local_ports_in_1x = MLXSW_CORE_RES_GET(mlxsw_core, LOCAL_PORTS_IN_1X); 3874 local_ports_in_2x = MLXSW_CORE_RES_GET(mlxsw_core, LOCAL_PORTS_IN_2X); 3875 3876 mlxsw_sp_port = mlxsw_sp->ports[local_port]; 3877 if (!mlxsw_sp_port) { 3878 dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n", 3879 local_port); 3880 NL_SET_ERR_MSG_MOD(extack, "Port number does not exist"); 3881 return -EINVAL; 3882 } 3883 3884 if (!mlxsw_sp_port->split) { 3885 netdev_err(mlxsw_sp_port->dev, "Port was not split\n"); 3886 NL_SET_ERR_MSG_MOD(extack, "Port was not split"); 3887 return -EINVAL; 3888 } 3889 3890 cur_width = mlxsw_sp_port->mapping.width; 3891 count = cur_width == 1 ? 4 : 2; 3892 3893 if (count == 2) 3894 offset = local_ports_in_2x; 3895 else 3896 offset = local_ports_in_1x; 3897 3898 base_port = mlxsw_sp_cluster_base_port_get(local_port); 3899 3900 /* Determine which ports to remove. */ 3901 if (count == 2 && local_port >= base_port + 2) 3902 base_port = base_port + 2; 3903 3904 for (i = 0; i < count; i++) 3905 if (mlxsw_sp_port_created(mlxsw_sp, base_port + i * offset)) 3906 mlxsw_sp_port_remove(mlxsw_sp, base_port + i * offset); 3907 3908 mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count); 3909 3910 return 0; 3911 } 3912 3913 static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info *reg, 3914 char *pude_pl, void *priv) 3915 { 3916 struct mlxsw_sp *mlxsw_sp = priv; 3917 struct mlxsw_sp_port *mlxsw_sp_port; 3918 enum mlxsw_reg_pude_oper_status status; 3919 u8 local_port; 3920 3921 local_port = mlxsw_reg_pude_local_port_get(pude_pl); 3922 mlxsw_sp_port = mlxsw_sp->ports[local_port]; 3923 if (!mlxsw_sp_port) 3924 return; 3925 3926 status = mlxsw_reg_pude_oper_status_get(pude_pl); 3927 if (status == MLXSW_PORT_OPER_STATUS_UP) { 3928 netdev_info(mlxsw_sp_port->dev, "link up\n"); 3929 netif_carrier_on(mlxsw_sp_port->dev); 3930 } else { 3931 netdev_info(mlxsw_sp_port->dev, "link down\n"); 3932 netif_carrier_off(mlxsw_sp_port->dev); 3933 } 3934 } 3935 3936 static void mlxsw_sp_rx_listener_no_mark_func(struct sk_buff *skb, 3937 u8 local_port, void *priv) 3938 { 3939 struct mlxsw_sp *mlxsw_sp = priv; 3940 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port]; 3941 struct mlxsw_sp_port_pcpu_stats *pcpu_stats; 3942 3943 if (unlikely(!mlxsw_sp_port)) { 3944 dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: skb received for non-existent port\n", 3945 local_port); 3946 return; 3947 } 3948 3949 skb->dev = mlxsw_sp_port->dev; 3950 3951 pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats); 3952 u64_stats_update_begin(&pcpu_stats->syncp); 3953 pcpu_stats->rx_packets++; 3954 pcpu_stats->rx_bytes += skb->len; 3955 u64_stats_update_end(&pcpu_stats->syncp); 3956 3957 skb->protocol = eth_type_trans(skb, skb->dev); 3958 netif_receive_skb(skb); 3959 } 3960 3961 static void mlxsw_sp_rx_listener_mark_func(struct sk_buff *skb, u8 local_port, 3962 void *priv) 3963 { 3964 skb->offload_fwd_mark = 1; 3965 return mlxsw_sp_rx_listener_no_mark_func(skb, local_port, priv); 3966 } 3967 3968 static void mlxsw_sp_rx_listener_l3_mark_func(struct sk_buff *skb, 3969 u8 local_port, void *priv) 3970 { 3971 skb->offload_l3_fwd_mark = 1; 3972 skb->offload_fwd_mark = 1; 3973 return mlxsw_sp_rx_listener_no_mark_func(skb, local_port, priv); 3974 } 3975 3976 static void mlxsw_sp_rx_listener_sample_func(struct sk_buff *skb, u8 local_port, 3977 void *priv) 3978 { 3979 struct mlxsw_sp *mlxsw_sp = priv; 3980 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port]; 3981 struct psample_group *psample_group; 3982 u32 size; 3983 3984 if (unlikely(!mlxsw_sp_port)) { 3985 dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: sample skb received for non-existent port\n", 3986 local_port); 3987 goto out; 3988 } 3989 if (unlikely(!mlxsw_sp_port->sample)) { 3990 dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: sample skb received on unsupported port\n", 3991 local_port); 3992 goto out; 3993 } 3994 3995 size = mlxsw_sp_port->sample->truncate ? 3996 mlxsw_sp_port->sample->trunc_size : skb->len; 3997 3998 rcu_read_lock(); 3999 psample_group = rcu_dereference(mlxsw_sp_port->sample->psample_group); 4000 if (!psample_group) 4001 goto out_unlock; 4002 psample_sample_packet(psample_group, skb, size, 4003 mlxsw_sp_port->dev->ifindex, 0, 4004 mlxsw_sp_port->sample->rate); 4005 out_unlock: 4006 rcu_read_unlock(); 4007 out: 4008 consume_skb(skb); 4009 } 4010 4011 #define MLXSW_SP_RXL_NO_MARK(_trap_id, _action, _trap_group, _is_ctrl) \ 4012 MLXSW_RXL(mlxsw_sp_rx_listener_no_mark_func, _trap_id, _action, \ 4013 _is_ctrl, SP_##_trap_group, DISCARD) 4014 4015 #define MLXSW_SP_RXL_MARK(_trap_id, _action, _trap_group, _is_ctrl) \ 4016 MLXSW_RXL(mlxsw_sp_rx_listener_mark_func, _trap_id, _action, \ 4017 _is_ctrl, SP_##_trap_group, DISCARD) 4018 4019 #define MLXSW_SP_RXL_L3_MARK(_trap_id, _action, _trap_group, _is_ctrl) \ 4020 MLXSW_RXL(mlxsw_sp_rx_listener_l3_mark_func, _trap_id, _action, \ 4021 _is_ctrl, SP_##_trap_group, DISCARD) 4022 4023 #define MLXSW_SP_EVENTL(_func, _trap_id) \ 4024 MLXSW_EVENTL(_func, _trap_id, SP_EVENT) 4025 4026 static const struct mlxsw_listener mlxsw_sp_listener[] = { 4027 /* Events */ 4028 MLXSW_SP_EVENTL(mlxsw_sp_pude_event_func, PUDE), 4029 /* L2 traps */ 4030 MLXSW_SP_RXL_NO_MARK(STP, TRAP_TO_CPU, STP, true), 4031 MLXSW_SP_RXL_NO_MARK(LACP, TRAP_TO_CPU, LACP, true), 4032 MLXSW_SP_RXL_NO_MARK(LLDP, TRAP_TO_CPU, LLDP, true), 4033 MLXSW_SP_RXL_MARK(DHCP, MIRROR_TO_CPU, DHCP, false), 4034 MLXSW_SP_RXL_MARK(IGMP_QUERY, MIRROR_TO_CPU, IGMP, false), 4035 MLXSW_SP_RXL_NO_MARK(IGMP_V1_REPORT, TRAP_TO_CPU, IGMP, false), 4036 MLXSW_SP_RXL_NO_MARK(IGMP_V2_REPORT, TRAP_TO_CPU, IGMP, false), 4037 MLXSW_SP_RXL_NO_MARK(IGMP_V2_LEAVE, TRAP_TO_CPU, IGMP, false), 4038 MLXSW_SP_RXL_NO_MARK(IGMP_V3_REPORT, TRAP_TO_CPU, IGMP, false), 4039 MLXSW_SP_RXL_MARK(ARPBC, MIRROR_TO_CPU, ARP, false), 4040 MLXSW_SP_RXL_MARK(ARPUC, MIRROR_TO_CPU, ARP, false), 4041 MLXSW_SP_RXL_NO_MARK(FID_MISS, TRAP_TO_CPU, IP2ME, false), 4042 MLXSW_SP_RXL_MARK(IPV6_MLDV12_LISTENER_QUERY, MIRROR_TO_CPU, IPV6_MLD, 4043 false), 4044 MLXSW_SP_RXL_NO_MARK(IPV6_MLDV1_LISTENER_REPORT, TRAP_TO_CPU, IPV6_MLD, 4045 false), 4046 MLXSW_SP_RXL_NO_MARK(IPV6_MLDV1_LISTENER_DONE, TRAP_TO_CPU, IPV6_MLD, 4047 false), 4048 MLXSW_SP_RXL_NO_MARK(IPV6_MLDV2_LISTENER_REPORT, TRAP_TO_CPU, IPV6_MLD, 4049 false), 4050 /* L3 traps */ 4051 MLXSW_SP_RXL_MARK(MTUERROR, TRAP_TO_CPU, ROUTER_EXP, false), 4052 MLXSW_SP_RXL_MARK(TTLERROR, TRAP_TO_CPU, ROUTER_EXP, false), 4053 MLXSW_SP_RXL_L3_MARK(LBERROR, MIRROR_TO_CPU, LBERROR, false), 4054 MLXSW_SP_RXL_MARK(IP2ME, TRAP_TO_CPU, IP2ME, false), 4055 MLXSW_SP_RXL_MARK(IPV6_UNSPECIFIED_ADDRESS, TRAP_TO_CPU, ROUTER_EXP, 4056 false), 4057 MLXSW_SP_RXL_MARK(IPV6_LINK_LOCAL_DEST, TRAP_TO_CPU, ROUTER_EXP, false), 4058 MLXSW_SP_RXL_MARK(IPV6_LINK_LOCAL_SRC, TRAP_TO_CPU, ROUTER_EXP, false), 4059 MLXSW_SP_RXL_MARK(IPV6_ALL_NODES_LINK, TRAP_TO_CPU, ROUTER_EXP, false), 4060 MLXSW_SP_RXL_MARK(IPV6_ALL_ROUTERS_LINK, TRAP_TO_CPU, ROUTER_EXP, 4061 false), 4062 MLXSW_SP_RXL_MARK(IPV4_OSPF, TRAP_TO_CPU, OSPF, false), 4063 MLXSW_SP_RXL_MARK(IPV6_OSPF, TRAP_TO_CPU, OSPF, false), 4064 MLXSW_SP_RXL_MARK(IPV6_DHCP, TRAP_TO_CPU, DHCP, false), 4065 MLXSW_SP_RXL_MARK(RTR_INGRESS0, TRAP_TO_CPU, REMOTE_ROUTE, false), 4066 MLXSW_SP_RXL_MARK(IPV4_BGP, TRAP_TO_CPU, BGP, false), 4067 MLXSW_SP_RXL_MARK(IPV6_BGP, TRAP_TO_CPU, BGP, false), 4068 MLXSW_SP_RXL_MARK(L3_IPV6_ROUTER_SOLICITATION, TRAP_TO_CPU, IPV6_ND, 4069 false), 4070 MLXSW_SP_RXL_MARK(L3_IPV6_ROUTER_ADVERTISMENT, TRAP_TO_CPU, IPV6_ND, 4071 false), 4072 MLXSW_SP_RXL_MARK(L3_IPV6_NEIGHBOR_SOLICITATION, TRAP_TO_CPU, IPV6_ND, 4073 false), 4074 MLXSW_SP_RXL_MARK(L3_IPV6_NEIGHBOR_ADVERTISMENT, TRAP_TO_CPU, IPV6_ND, 4075 false), 4076 MLXSW_SP_RXL_MARK(L3_IPV6_REDIRECTION, TRAP_TO_CPU, IPV6_ND, false), 4077 MLXSW_SP_RXL_MARK(IPV6_MC_LINK_LOCAL_DEST, TRAP_TO_CPU, ROUTER_EXP, 4078 false), 4079 MLXSW_SP_RXL_MARK(HOST_MISS_IPV4, TRAP_TO_CPU, HOST_MISS, false), 4080 MLXSW_SP_RXL_MARK(HOST_MISS_IPV6, TRAP_TO_CPU, HOST_MISS, false), 4081 MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV4, TRAP_TO_CPU, ROUTER_EXP, false), 4082 MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV6, TRAP_TO_CPU, ROUTER_EXP, false), 4083 MLXSW_SP_RXL_MARK(IPIP_DECAP_ERROR, TRAP_TO_CPU, ROUTER_EXP, false), 4084 MLXSW_SP_RXL_MARK(DECAP_ECN0, TRAP_TO_CPU, ROUTER_EXP, false), 4085 MLXSW_SP_RXL_MARK(IPV4_VRRP, TRAP_TO_CPU, ROUTER_EXP, false), 4086 MLXSW_SP_RXL_MARK(IPV6_VRRP, TRAP_TO_CPU, ROUTER_EXP, false), 4087 /* PKT Sample trap */ 4088 MLXSW_RXL(mlxsw_sp_rx_listener_sample_func, PKT_SAMPLE, MIRROR_TO_CPU, 4089 false, SP_IP2ME, DISCARD), 4090 /* ACL trap */ 4091 MLXSW_SP_RXL_NO_MARK(ACL0, TRAP_TO_CPU, IP2ME, false), 4092 /* Multicast Router Traps */ 4093 MLXSW_SP_RXL_MARK(IPV4_PIM, TRAP_TO_CPU, PIM, false), 4094 MLXSW_SP_RXL_MARK(IPV6_PIM, TRAP_TO_CPU, PIM, false), 4095 MLXSW_SP_RXL_MARK(RPF, TRAP_TO_CPU, RPF, false), 4096 MLXSW_SP_RXL_MARK(ACL1, TRAP_TO_CPU, MULTICAST, false), 4097 MLXSW_SP_RXL_L3_MARK(ACL2, TRAP_TO_CPU, MULTICAST, false), 4098 /* NVE traps */ 4099 MLXSW_SP_RXL_MARK(NVE_ENCAP_ARP, TRAP_TO_CPU, ARP, false), 4100 MLXSW_SP_RXL_NO_MARK(NVE_DECAP_ARP, TRAP_TO_CPU, ARP, false), 4101 }; 4102 4103 static int mlxsw_sp_cpu_policers_set(struct mlxsw_core *mlxsw_core) 4104 { 4105 char qpcr_pl[MLXSW_REG_QPCR_LEN]; 4106 enum mlxsw_reg_qpcr_ir_units ir_units; 4107 int max_cpu_policers; 4108 bool is_bytes; 4109 u8 burst_size; 4110 u32 rate; 4111 int i, err; 4112 4113 if (!MLXSW_CORE_RES_VALID(mlxsw_core, MAX_CPU_POLICERS)) 4114 return -EIO; 4115 4116 max_cpu_policers = MLXSW_CORE_RES_GET(mlxsw_core, MAX_CPU_POLICERS); 4117 4118 ir_units = MLXSW_REG_QPCR_IR_UNITS_M; 4119 for (i = 0; i < max_cpu_policers; i++) { 4120 is_bytes = false; 4121 switch (i) { 4122 case MLXSW_REG_HTGT_TRAP_GROUP_SP_STP: 4123 case MLXSW_REG_HTGT_TRAP_GROUP_SP_LACP: 4124 case MLXSW_REG_HTGT_TRAP_GROUP_SP_LLDP: 4125 case MLXSW_REG_HTGT_TRAP_GROUP_SP_OSPF: 4126 case MLXSW_REG_HTGT_TRAP_GROUP_SP_PIM: 4127 case MLXSW_REG_HTGT_TRAP_GROUP_SP_RPF: 4128 case MLXSW_REG_HTGT_TRAP_GROUP_SP_LBERROR: 4129 rate = 128; 4130 burst_size = 7; 4131 break; 4132 case MLXSW_REG_HTGT_TRAP_GROUP_SP_IGMP: 4133 case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6_MLD: 4134 rate = 16 * 1024; 4135 burst_size = 10; 4136 break; 4137 case MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP: 4138 case MLXSW_REG_HTGT_TRAP_GROUP_SP_ARP: 4139 case MLXSW_REG_HTGT_TRAP_GROUP_SP_DHCP: 4140 case MLXSW_REG_HTGT_TRAP_GROUP_SP_HOST_MISS: 4141 case MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP: 4142 case MLXSW_REG_HTGT_TRAP_GROUP_SP_REMOTE_ROUTE: 4143 case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6_ND: 4144 case MLXSW_REG_HTGT_TRAP_GROUP_SP_MULTICAST: 4145 rate = 1024; 4146 burst_size = 7; 4147 break; 4148 case MLXSW_REG_HTGT_TRAP_GROUP_SP_IP2ME: 4149 rate = 1024; 4150 burst_size = 7; 4151 break; 4152 default: 4153 continue; 4154 } 4155 4156 mlxsw_reg_qpcr_pack(qpcr_pl, i, ir_units, is_bytes, rate, 4157 burst_size); 4158 err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(qpcr), qpcr_pl); 4159 if (err) 4160 return err; 4161 } 4162 4163 return 0; 4164 } 4165 4166 static int mlxsw_sp_trap_groups_set(struct mlxsw_core *mlxsw_core) 4167 { 4168 char htgt_pl[MLXSW_REG_HTGT_LEN]; 4169 enum mlxsw_reg_htgt_trap_group i; 4170 int max_cpu_policers; 4171 int max_trap_groups; 4172 u8 priority, tc; 4173 u16 policer_id; 4174 int err; 4175 4176 if (!MLXSW_CORE_RES_VALID(mlxsw_core, MAX_TRAP_GROUPS)) 4177 return -EIO; 4178 4179 max_trap_groups = MLXSW_CORE_RES_GET(mlxsw_core, MAX_TRAP_GROUPS); 4180 max_cpu_policers = MLXSW_CORE_RES_GET(mlxsw_core, MAX_CPU_POLICERS); 4181 4182 for (i = 0; i < max_trap_groups; i++) { 4183 policer_id = i; 4184 switch (i) { 4185 case MLXSW_REG_HTGT_TRAP_GROUP_SP_STP: 4186 case MLXSW_REG_HTGT_TRAP_GROUP_SP_LACP: 4187 case MLXSW_REG_HTGT_TRAP_GROUP_SP_LLDP: 4188 case MLXSW_REG_HTGT_TRAP_GROUP_SP_OSPF: 4189 case MLXSW_REG_HTGT_TRAP_GROUP_SP_PIM: 4190 priority = 5; 4191 tc = 5; 4192 break; 4193 case MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP: 4194 case MLXSW_REG_HTGT_TRAP_GROUP_SP_DHCP: 4195 priority = 4; 4196 tc = 4; 4197 break; 4198 case MLXSW_REG_HTGT_TRAP_GROUP_SP_IGMP: 4199 case MLXSW_REG_HTGT_TRAP_GROUP_SP_IP2ME: 4200 case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6_MLD: 4201 priority = 3; 4202 tc = 3; 4203 break; 4204 case MLXSW_REG_HTGT_TRAP_GROUP_SP_ARP: 4205 case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6_ND: 4206 case MLXSW_REG_HTGT_TRAP_GROUP_SP_RPF: 4207 priority = 2; 4208 tc = 2; 4209 break; 4210 case MLXSW_REG_HTGT_TRAP_GROUP_SP_HOST_MISS: 4211 case MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP: 4212 case MLXSW_REG_HTGT_TRAP_GROUP_SP_REMOTE_ROUTE: 4213 case MLXSW_REG_HTGT_TRAP_GROUP_SP_MULTICAST: 4214 case MLXSW_REG_HTGT_TRAP_GROUP_SP_LBERROR: 4215 priority = 1; 4216 tc = 1; 4217 break; 4218 case MLXSW_REG_HTGT_TRAP_GROUP_SP_EVENT: 4219 priority = MLXSW_REG_HTGT_DEFAULT_PRIORITY; 4220 tc = MLXSW_REG_HTGT_DEFAULT_TC; 4221 policer_id = MLXSW_REG_HTGT_INVALID_POLICER; 4222 break; 4223 default: 4224 continue; 4225 } 4226 4227 if (max_cpu_policers <= policer_id && 4228 policer_id != MLXSW_REG_HTGT_INVALID_POLICER) 4229 return -EIO; 4230 4231 mlxsw_reg_htgt_pack(htgt_pl, i, policer_id, priority, tc); 4232 err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl); 4233 if (err) 4234 return err; 4235 } 4236 4237 return 0; 4238 } 4239 4240 static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp) 4241 { 4242 int i; 4243 int err; 4244 4245 err = mlxsw_sp_cpu_policers_set(mlxsw_sp->core); 4246 if (err) 4247 return err; 4248 4249 err = mlxsw_sp_trap_groups_set(mlxsw_sp->core); 4250 if (err) 4251 return err; 4252 4253 for (i = 0; i < ARRAY_SIZE(mlxsw_sp_listener); i++) { 4254 err = mlxsw_core_trap_register(mlxsw_sp->core, 4255 &mlxsw_sp_listener[i], 4256 mlxsw_sp); 4257 if (err) 4258 goto err_listener_register; 4259 4260 } 4261 return 0; 4262 4263 err_listener_register: 4264 for (i--; i >= 0; i--) { 4265 mlxsw_core_trap_unregister(mlxsw_sp->core, 4266 &mlxsw_sp_listener[i], 4267 mlxsw_sp); 4268 } 4269 return err; 4270 } 4271 4272 static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp) 4273 { 4274 int i; 4275 4276 for (i = 0; i < ARRAY_SIZE(mlxsw_sp_listener); i++) { 4277 mlxsw_core_trap_unregister(mlxsw_sp->core, 4278 &mlxsw_sp_listener[i], 4279 mlxsw_sp); 4280 } 4281 } 4282 4283 #define MLXSW_SP_LAG_SEED_INIT 0xcafecafe 4284 4285 static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp) 4286 { 4287 char slcr_pl[MLXSW_REG_SLCR_LEN]; 4288 u32 seed; 4289 int err; 4290 4291 seed = jhash(mlxsw_sp->base_mac, sizeof(mlxsw_sp->base_mac), 4292 MLXSW_SP_LAG_SEED_INIT); 4293 mlxsw_reg_slcr_pack(slcr_pl, MLXSW_REG_SLCR_LAG_HASH_SMAC | 4294 MLXSW_REG_SLCR_LAG_HASH_DMAC | 4295 MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE | 4296 MLXSW_REG_SLCR_LAG_HASH_VLANID | 4297 MLXSW_REG_SLCR_LAG_HASH_SIP | 4298 MLXSW_REG_SLCR_LAG_HASH_DIP | 4299 MLXSW_REG_SLCR_LAG_HASH_SPORT | 4300 MLXSW_REG_SLCR_LAG_HASH_DPORT | 4301 MLXSW_REG_SLCR_LAG_HASH_IPPROTO, seed); 4302 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcr), slcr_pl); 4303 if (err) 4304 return err; 4305 4306 if (!MLXSW_CORE_RES_VALID(mlxsw_sp->core, MAX_LAG) || 4307 !MLXSW_CORE_RES_VALID(mlxsw_sp->core, MAX_LAG_MEMBERS)) 4308 return -EIO; 4309 4310 mlxsw_sp->lags = kcalloc(MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_LAG), 4311 sizeof(struct mlxsw_sp_upper), 4312 GFP_KERNEL); 4313 if (!mlxsw_sp->lags) 4314 return -ENOMEM; 4315 4316 return 0; 4317 } 4318 4319 static void mlxsw_sp_lag_fini(struct mlxsw_sp *mlxsw_sp) 4320 { 4321 kfree(mlxsw_sp->lags); 4322 } 4323 4324 static int mlxsw_sp_basic_trap_groups_set(struct mlxsw_core *mlxsw_core) 4325 { 4326 char htgt_pl[MLXSW_REG_HTGT_LEN]; 4327 4328 mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_EMAD, 4329 MLXSW_REG_HTGT_INVALID_POLICER, 4330 MLXSW_REG_HTGT_DEFAULT_PRIORITY, 4331 MLXSW_REG_HTGT_DEFAULT_TC); 4332 return mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl); 4333 } 4334 4335 static int mlxsw_sp_netdevice_event(struct notifier_block *unused, 4336 unsigned long event, void *ptr); 4337 4338 static int mlxsw_sp_init(struct mlxsw_core *mlxsw_core, 4339 const struct mlxsw_bus_info *mlxsw_bus_info) 4340 { 4341 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); 4342 int err; 4343 4344 mlxsw_sp->core = mlxsw_core; 4345 mlxsw_sp->bus_info = mlxsw_bus_info; 4346 4347 err = mlxsw_sp_fw_rev_validate(mlxsw_sp); 4348 if (err) 4349 return err; 4350 4351 err = mlxsw_sp_base_mac_get(mlxsw_sp); 4352 if (err) { 4353 dev_err(mlxsw_sp->bus_info->dev, "Failed to get base mac\n"); 4354 return err; 4355 } 4356 4357 err = mlxsw_sp_kvdl_init(mlxsw_sp); 4358 if (err) { 4359 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize KVDL\n"); 4360 return err; 4361 } 4362 4363 err = mlxsw_sp_fids_init(mlxsw_sp); 4364 if (err) { 4365 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize FIDs\n"); 4366 goto err_fids_init; 4367 } 4368 4369 err = mlxsw_sp_traps_init(mlxsw_sp); 4370 if (err) { 4371 dev_err(mlxsw_sp->bus_info->dev, "Failed to set traps\n"); 4372 goto err_traps_init; 4373 } 4374 4375 err = mlxsw_sp_buffers_init(mlxsw_sp); 4376 if (err) { 4377 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize buffers\n"); 4378 goto err_buffers_init; 4379 } 4380 4381 err = mlxsw_sp_lag_init(mlxsw_sp); 4382 if (err) { 4383 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize LAG\n"); 4384 goto err_lag_init; 4385 } 4386 4387 /* Initialize SPAN before router and switchdev, so that those components 4388 * can call mlxsw_sp_span_respin(). 4389 */ 4390 err = mlxsw_sp_span_init(mlxsw_sp); 4391 if (err) { 4392 dev_err(mlxsw_sp->bus_info->dev, "Failed to init span system\n"); 4393 goto err_span_init; 4394 } 4395 4396 err = mlxsw_sp_switchdev_init(mlxsw_sp); 4397 if (err) { 4398 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize switchdev\n"); 4399 goto err_switchdev_init; 4400 } 4401 4402 err = mlxsw_sp_counter_pool_init(mlxsw_sp); 4403 if (err) { 4404 dev_err(mlxsw_sp->bus_info->dev, "Failed to init counter pool\n"); 4405 goto err_counter_pool_init; 4406 } 4407 4408 err = mlxsw_sp_afa_init(mlxsw_sp); 4409 if (err) { 4410 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize ACL actions\n"); 4411 goto err_afa_init; 4412 } 4413 4414 err = mlxsw_sp_nve_init(mlxsw_sp); 4415 if (err) { 4416 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize NVE\n"); 4417 goto err_nve_init; 4418 } 4419 4420 err = mlxsw_sp_acl_init(mlxsw_sp); 4421 if (err) { 4422 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize ACL\n"); 4423 goto err_acl_init; 4424 } 4425 4426 err = mlxsw_sp_router_init(mlxsw_sp); 4427 if (err) { 4428 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize router\n"); 4429 goto err_router_init; 4430 } 4431 4432 /* Initialize netdevice notifier after router and SPAN is initialized, 4433 * so that the event handler can use router structures and call SPAN 4434 * respin. 4435 */ 4436 mlxsw_sp->netdevice_nb.notifier_call = mlxsw_sp_netdevice_event; 4437 err = register_netdevice_notifier(&mlxsw_sp->netdevice_nb); 4438 if (err) { 4439 dev_err(mlxsw_sp->bus_info->dev, "Failed to register netdev notifier\n"); 4440 goto err_netdev_notifier; 4441 } 4442 4443 err = mlxsw_sp_dpipe_init(mlxsw_sp); 4444 if (err) { 4445 dev_err(mlxsw_sp->bus_info->dev, "Failed to init pipeline debug\n"); 4446 goto err_dpipe_init; 4447 } 4448 4449 err = mlxsw_sp_ports_create(mlxsw_sp); 4450 if (err) { 4451 dev_err(mlxsw_sp->bus_info->dev, "Failed to create ports\n"); 4452 goto err_ports_create; 4453 } 4454 4455 return 0; 4456 4457 err_ports_create: 4458 mlxsw_sp_dpipe_fini(mlxsw_sp); 4459 err_dpipe_init: 4460 unregister_netdevice_notifier(&mlxsw_sp->netdevice_nb); 4461 err_netdev_notifier: 4462 mlxsw_sp_router_fini(mlxsw_sp); 4463 err_router_init: 4464 mlxsw_sp_acl_fini(mlxsw_sp); 4465 err_acl_init: 4466 mlxsw_sp_nve_fini(mlxsw_sp); 4467 err_nve_init: 4468 mlxsw_sp_afa_fini(mlxsw_sp); 4469 err_afa_init: 4470 mlxsw_sp_counter_pool_fini(mlxsw_sp); 4471 err_counter_pool_init: 4472 mlxsw_sp_switchdev_fini(mlxsw_sp); 4473 err_switchdev_init: 4474 mlxsw_sp_span_fini(mlxsw_sp); 4475 err_span_init: 4476 mlxsw_sp_lag_fini(mlxsw_sp); 4477 err_lag_init: 4478 mlxsw_sp_buffers_fini(mlxsw_sp); 4479 err_buffers_init: 4480 mlxsw_sp_traps_fini(mlxsw_sp); 4481 err_traps_init: 4482 mlxsw_sp_fids_fini(mlxsw_sp); 4483 err_fids_init: 4484 mlxsw_sp_kvdl_fini(mlxsw_sp); 4485 return err; 4486 } 4487 4488 static int mlxsw_sp1_init(struct mlxsw_core *mlxsw_core, 4489 const struct mlxsw_bus_info *mlxsw_bus_info) 4490 { 4491 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); 4492 4493 mlxsw_sp->req_rev = &mlxsw_sp1_fw_rev; 4494 mlxsw_sp->fw_filename = MLXSW_SP1_FW_FILENAME; 4495 mlxsw_sp->kvdl_ops = &mlxsw_sp1_kvdl_ops; 4496 mlxsw_sp->afa_ops = &mlxsw_sp1_act_afa_ops; 4497 mlxsw_sp->afk_ops = &mlxsw_sp1_afk_ops; 4498 mlxsw_sp->mr_tcam_ops = &mlxsw_sp1_mr_tcam_ops; 4499 mlxsw_sp->acl_tcam_ops = &mlxsw_sp1_acl_tcam_ops; 4500 mlxsw_sp->nve_ops_arr = mlxsw_sp1_nve_ops_arr; 4501 mlxsw_sp->mac_mask = mlxsw_sp1_mac_mask; 4502 mlxsw_sp->rif_ops_arr = mlxsw_sp1_rif_ops_arr; 4503 mlxsw_sp->sb_vals = &mlxsw_sp1_sb_vals; 4504 mlxsw_sp->port_type_speed_ops = &mlxsw_sp1_port_type_speed_ops; 4505 4506 return mlxsw_sp_init(mlxsw_core, mlxsw_bus_info); 4507 } 4508 4509 static int mlxsw_sp2_init(struct mlxsw_core *mlxsw_core, 4510 const struct mlxsw_bus_info *mlxsw_bus_info) 4511 { 4512 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); 4513 4514 mlxsw_sp->kvdl_ops = &mlxsw_sp2_kvdl_ops; 4515 mlxsw_sp->afa_ops = &mlxsw_sp2_act_afa_ops; 4516 mlxsw_sp->afk_ops = &mlxsw_sp2_afk_ops; 4517 mlxsw_sp->mr_tcam_ops = &mlxsw_sp2_mr_tcam_ops; 4518 mlxsw_sp->acl_tcam_ops = &mlxsw_sp2_acl_tcam_ops; 4519 mlxsw_sp->nve_ops_arr = mlxsw_sp2_nve_ops_arr; 4520 mlxsw_sp->mac_mask = mlxsw_sp2_mac_mask; 4521 mlxsw_sp->rif_ops_arr = mlxsw_sp2_rif_ops_arr; 4522 mlxsw_sp->sb_vals = &mlxsw_sp2_sb_vals; 4523 mlxsw_sp->port_type_speed_ops = &mlxsw_sp2_port_type_speed_ops; 4524 4525 return mlxsw_sp_init(mlxsw_core, mlxsw_bus_info); 4526 } 4527 4528 static void mlxsw_sp_fini(struct mlxsw_core *mlxsw_core) 4529 { 4530 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); 4531 4532 mlxsw_sp_ports_remove(mlxsw_sp); 4533 mlxsw_sp_dpipe_fini(mlxsw_sp); 4534 unregister_netdevice_notifier(&mlxsw_sp->netdevice_nb); 4535 mlxsw_sp_router_fini(mlxsw_sp); 4536 mlxsw_sp_acl_fini(mlxsw_sp); 4537 mlxsw_sp_nve_fini(mlxsw_sp); 4538 mlxsw_sp_afa_fini(mlxsw_sp); 4539 mlxsw_sp_counter_pool_fini(mlxsw_sp); 4540 mlxsw_sp_switchdev_fini(mlxsw_sp); 4541 mlxsw_sp_span_fini(mlxsw_sp); 4542 mlxsw_sp_lag_fini(mlxsw_sp); 4543 mlxsw_sp_buffers_fini(mlxsw_sp); 4544 mlxsw_sp_traps_fini(mlxsw_sp); 4545 mlxsw_sp_fids_fini(mlxsw_sp); 4546 mlxsw_sp_kvdl_fini(mlxsw_sp); 4547 } 4548 4549 /* Per-FID flood tables are used for both "true" 802.1D FIDs and emulated 4550 * 802.1Q FIDs 4551 */ 4552 #define MLXSW_SP_FID_FLOOD_TABLE_SIZE (MLXSW_SP_FID_8021D_MAX + \ 4553 VLAN_VID_MASK - 1) 4554 4555 static const struct mlxsw_config_profile mlxsw_sp1_config_profile = { 4556 .used_max_mid = 1, 4557 .max_mid = MLXSW_SP_MID_MAX, 4558 .used_flood_tables = 1, 4559 .used_flood_mode = 1, 4560 .flood_mode = 3, 4561 .max_fid_flood_tables = 3, 4562 .fid_flood_table_size = MLXSW_SP_FID_FLOOD_TABLE_SIZE, 4563 .used_max_ib_mc = 1, 4564 .max_ib_mc = 0, 4565 .used_max_pkey = 1, 4566 .max_pkey = 0, 4567 .used_kvd_sizes = 1, 4568 .kvd_hash_single_parts = 59, 4569 .kvd_hash_double_parts = 41, 4570 .kvd_linear_size = MLXSW_SP_KVD_LINEAR_SIZE, 4571 .swid_config = { 4572 { 4573 .used_type = 1, 4574 .type = MLXSW_PORT_SWID_TYPE_ETH, 4575 } 4576 }, 4577 }; 4578 4579 static const struct mlxsw_config_profile mlxsw_sp2_config_profile = { 4580 .used_max_mid = 1, 4581 .max_mid = MLXSW_SP_MID_MAX, 4582 .used_flood_tables = 1, 4583 .used_flood_mode = 1, 4584 .flood_mode = 3, 4585 .max_fid_flood_tables = 3, 4586 .fid_flood_table_size = MLXSW_SP_FID_FLOOD_TABLE_SIZE, 4587 .used_max_ib_mc = 1, 4588 .max_ib_mc = 0, 4589 .used_max_pkey = 1, 4590 .max_pkey = 0, 4591 .swid_config = { 4592 { 4593 .used_type = 1, 4594 .type = MLXSW_PORT_SWID_TYPE_ETH, 4595 } 4596 }, 4597 }; 4598 4599 static void 4600 mlxsw_sp_resource_size_params_prepare(struct mlxsw_core *mlxsw_core, 4601 struct devlink_resource_size_params *kvd_size_params, 4602 struct devlink_resource_size_params *linear_size_params, 4603 struct devlink_resource_size_params *hash_double_size_params, 4604 struct devlink_resource_size_params *hash_single_size_params) 4605 { 4606 u32 single_size_min = MLXSW_CORE_RES_GET(mlxsw_core, 4607 KVD_SINGLE_MIN_SIZE); 4608 u32 double_size_min = MLXSW_CORE_RES_GET(mlxsw_core, 4609 KVD_DOUBLE_MIN_SIZE); 4610 u32 kvd_size = MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE); 4611 u32 linear_size_min = 0; 4612 4613 devlink_resource_size_params_init(kvd_size_params, kvd_size, kvd_size, 4614 MLXSW_SP_KVD_GRANULARITY, 4615 DEVLINK_RESOURCE_UNIT_ENTRY); 4616 devlink_resource_size_params_init(linear_size_params, linear_size_min, 4617 kvd_size - single_size_min - 4618 double_size_min, 4619 MLXSW_SP_KVD_GRANULARITY, 4620 DEVLINK_RESOURCE_UNIT_ENTRY); 4621 devlink_resource_size_params_init(hash_double_size_params, 4622 double_size_min, 4623 kvd_size - single_size_min - 4624 linear_size_min, 4625 MLXSW_SP_KVD_GRANULARITY, 4626 DEVLINK_RESOURCE_UNIT_ENTRY); 4627 devlink_resource_size_params_init(hash_single_size_params, 4628 single_size_min, 4629 kvd_size - double_size_min - 4630 linear_size_min, 4631 MLXSW_SP_KVD_GRANULARITY, 4632 DEVLINK_RESOURCE_UNIT_ENTRY); 4633 } 4634 4635 static int mlxsw_sp1_resources_kvd_register(struct mlxsw_core *mlxsw_core) 4636 { 4637 struct devlink *devlink = priv_to_devlink(mlxsw_core); 4638 struct devlink_resource_size_params hash_single_size_params; 4639 struct devlink_resource_size_params hash_double_size_params; 4640 struct devlink_resource_size_params linear_size_params; 4641 struct devlink_resource_size_params kvd_size_params; 4642 u32 kvd_size, single_size, double_size, linear_size; 4643 const struct mlxsw_config_profile *profile; 4644 int err; 4645 4646 profile = &mlxsw_sp1_config_profile; 4647 if (!MLXSW_CORE_RES_VALID(mlxsw_core, KVD_SIZE)) 4648 return -EIO; 4649 4650 mlxsw_sp_resource_size_params_prepare(mlxsw_core, &kvd_size_params, 4651 &linear_size_params, 4652 &hash_double_size_params, 4653 &hash_single_size_params); 4654 4655 kvd_size = MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE); 4656 err = devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD, 4657 kvd_size, MLXSW_SP_RESOURCE_KVD, 4658 DEVLINK_RESOURCE_ID_PARENT_TOP, 4659 &kvd_size_params); 4660 if (err) 4661 return err; 4662 4663 linear_size = profile->kvd_linear_size; 4664 err = devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD_LINEAR, 4665 linear_size, 4666 MLXSW_SP_RESOURCE_KVD_LINEAR, 4667 MLXSW_SP_RESOURCE_KVD, 4668 &linear_size_params); 4669 if (err) 4670 return err; 4671 4672 err = mlxsw_sp1_kvdl_resources_register(mlxsw_core); 4673 if (err) 4674 return err; 4675 4676 double_size = kvd_size - linear_size; 4677 double_size *= profile->kvd_hash_double_parts; 4678 double_size /= profile->kvd_hash_double_parts + 4679 profile->kvd_hash_single_parts; 4680 double_size = rounddown(double_size, MLXSW_SP_KVD_GRANULARITY); 4681 err = devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD_HASH_DOUBLE, 4682 double_size, 4683 MLXSW_SP_RESOURCE_KVD_HASH_DOUBLE, 4684 MLXSW_SP_RESOURCE_KVD, 4685 &hash_double_size_params); 4686 if (err) 4687 return err; 4688 4689 single_size = kvd_size - double_size - linear_size; 4690 err = devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD_HASH_SINGLE, 4691 single_size, 4692 MLXSW_SP_RESOURCE_KVD_HASH_SINGLE, 4693 MLXSW_SP_RESOURCE_KVD, 4694 &hash_single_size_params); 4695 if (err) 4696 return err; 4697 4698 return 0; 4699 } 4700 4701 static int mlxsw_sp1_resources_register(struct mlxsw_core *mlxsw_core) 4702 { 4703 return mlxsw_sp1_resources_kvd_register(mlxsw_core); 4704 } 4705 4706 static int mlxsw_sp2_resources_register(struct mlxsw_core *mlxsw_core) 4707 { 4708 return 0; 4709 } 4710 4711 static int mlxsw_sp_kvd_sizes_get(struct mlxsw_core *mlxsw_core, 4712 const struct mlxsw_config_profile *profile, 4713 u64 *p_single_size, u64 *p_double_size, 4714 u64 *p_linear_size) 4715 { 4716 struct devlink *devlink = priv_to_devlink(mlxsw_core); 4717 u32 double_size; 4718 int err; 4719 4720 if (!MLXSW_CORE_RES_VALID(mlxsw_core, KVD_SINGLE_MIN_SIZE) || 4721 !MLXSW_CORE_RES_VALID(mlxsw_core, KVD_DOUBLE_MIN_SIZE)) 4722 return -EIO; 4723 4724 /* The hash part is what left of the kvd without the 4725 * linear part. It is split to the single size and 4726 * double size by the parts ratio from the profile. 4727 * Both sizes must be a multiplications of the 4728 * granularity from the profile. In case the user 4729 * provided the sizes they are obtained via devlink. 4730 */ 4731 err = devlink_resource_size_get(devlink, 4732 MLXSW_SP_RESOURCE_KVD_LINEAR, 4733 p_linear_size); 4734 if (err) 4735 *p_linear_size = profile->kvd_linear_size; 4736 4737 err = devlink_resource_size_get(devlink, 4738 MLXSW_SP_RESOURCE_KVD_HASH_DOUBLE, 4739 p_double_size); 4740 if (err) { 4741 double_size = MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE) - 4742 *p_linear_size; 4743 double_size *= profile->kvd_hash_double_parts; 4744 double_size /= profile->kvd_hash_double_parts + 4745 profile->kvd_hash_single_parts; 4746 *p_double_size = rounddown(double_size, 4747 MLXSW_SP_KVD_GRANULARITY); 4748 } 4749 4750 err = devlink_resource_size_get(devlink, 4751 MLXSW_SP_RESOURCE_KVD_HASH_SINGLE, 4752 p_single_size); 4753 if (err) 4754 *p_single_size = MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE) - 4755 *p_double_size - *p_linear_size; 4756 4757 /* Check results are legal. */ 4758 if (*p_single_size < MLXSW_CORE_RES_GET(mlxsw_core, KVD_SINGLE_MIN_SIZE) || 4759 *p_double_size < MLXSW_CORE_RES_GET(mlxsw_core, KVD_DOUBLE_MIN_SIZE) || 4760 MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE) < *p_linear_size) 4761 return -EIO; 4762 4763 return 0; 4764 } 4765 4766 static int 4767 mlxsw_sp_devlink_param_fw_load_policy_validate(struct devlink *devlink, u32 id, 4768 union devlink_param_value val, 4769 struct netlink_ext_ack *extack) 4770 { 4771 if ((val.vu8 != DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_DRIVER) && 4772 (val.vu8 != DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_FLASH)) { 4773 NL_SET_ERR_MSG_MOD(extack, "'fw_load_policy' must be 'driver' or 'flash'"); 4774 return -EINVAL; 4775 } 4776 4777 return 0; 4778 } 4779 4780 static const struct devlink_param mlxsw_sp_devlink_params[] = { 4781 DEVLINK_PARAM_GENERIC(FW_LOAD_POLICY, 4782 BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), 4783 NULL, NULL, 4784 mlxsw_sp_devlink_param_fw_load_policy_validate), 4785 }; 4786 4787 static int mlxsw_sp_params_register(struct mlxsw_core *mlxsw_core) 4788 { 4789 struct devlink *devlink = priv_to_devlink(mlxsw_core); 4790 union devlink_param_value value; 4791 int err; 4792 4793 err = devlink_params_register(devlink, mlxsw_sp_devlink_params, 4794 ARRAY_SIZE(mlxsw_sp_devlink_params)); 4795 if (err) 4796 return err; 4797 4798 value.vu8 = DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_DRIVER; 4799 devlink_param_driverinit_value_set(devlink, 4800 DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY, 4801 value); 4802 return 0; 4803 } 4804 4805 static void mlxsw_sp_params_unregister(struct mlxsw_core *mlxsw_core) 4806 { 4807 devlink_params_unregister(priv_to_devlink(mlxsw_core), 4808 mlxsw_sp_devlink_params, 4809 ARRAY_SIZE(mlxsw_sp_devlink_params)); 4810 } 4811 4812 static int 4813 mlxsw_sp_params_acl_region_rehash_intrvl_get(struct devlink *devlink, u32 id, 4814 struct devlink_param_gset_ctx *ctx) 4815 { 4816 struct mlxsw_core *mlxsw_core = devlink_priv(devlink); 4817 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); 4818 4819 ctx->val.vu32 = mlxsw_sp_acl_region_rehash_intrvl_get(mlxsw_sp); 4820 return 0; 4821 } 4822 4823 static int 4824 mlxsw_sp_params_acl_region_rehash_intrvl_set(struct devlink *devlink, u32 id, 4825 struct devlink_param_gset_ctx *ctx) 4826 { 4827 struct mlxsw_core *mlxsw_core = devlink_priv(devlink); 4828 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); 4829 4830 return mlxsw_sp_acl_region_rehash_intrvl_set(mlxsw_sp, ctx->val.vu32); 4831 } 4832 4833 static const struct devlink_param mlxsw_sp2_devlink_params[] = { 4834 DEVLINK_PARAM_DRIVER(MLXSW_DEVLINK_PARAM_ID_ACL_REGION_REHASH_INTERVAL, 4835 "acl_region_rehash_interval", 4836 DEVLINK_PARAM_TYPE_U32, 4837 BIT(DEVLINK_PARAM_CMODE_RUNTIME), 4838 mlxsw_sp_params_acl_region_rehash_intrvl_get, 4839 mlxsw_sp_params_acl_region_rehash_intrvl_set, 4840 NULL), 4841 }; 4842 4843 static int mlxsw_sp2_params_register(struct mlxsw_core *mlxsw_core) 4844 { 4845 struct devlink *devlink = priv_to_devlink(mlxsw_core); 4846 union devlink_param_value value; 4847 int err; 4848 4849 err = mlxsw_sp_params_register(mlxsw_core); 4850 if (err) 4851 return err; 4852 4853 err = devlink_params_register(devlink, mlxsw_sp2_devlink_params, 4854 ARRAY_SIZE(mlxsw_sp2_devlink_params)); 4855 if (err) 4856 goto err_devlink_params_register; 4857 4858 value.vu32 = 0; 4859 devlink_param_driverinit_value_set(devlink, 4860 MLXSW_DEVLINK_PARAM_ID_ACL_REGION_REHASH_INTERVAL, 4861 value); 4862 return 0; 4863 4864 err_devlink_params_register: 4865 mlxsw_sp_params_unregister(mlxsw_core); 4866 return err; 4867 } 4868 4869 static void mlxsw_sp2_params_unregister(struct mlxsw_core *mlxsw_core) 4870 { 4871 devlink_params_unregister(priv_to_devlink(mlxsw_core), 4872 mlxsw_sp2_devlink_params, 4873 ARRAY_SIZE(mlxsw_sp2_devlink_params)); 4874 mlxsw_sp_params_unregister(mlxsw_core); 4875 } 4876 4877 static struct mlxsw_driver mlxsw_sp1_driver = { 4878 .kind = mlxsw_sp1_driver_name, 4879 .priv_size = sizeof(struct mlxsw_sp), 4880 .init = mlxsw_sp1_init, 4881 .fini = mlxsw_sp_fini, 4882 .basic_trap_groups_set = mlxsw_sp_basic_trap_groups_set, 4883 .port_split = mlxsw_sp_port_split, 4884 .port_unsplit = mlxsw_sp_port_unsplit, 4885 .sb_pool_get = mlxsw_sp_sb_pool_get, 4886 .sb_pool_set = mlxsw_sp_sb_pool_set, 4887 .sb_port_pool_get = mlxsw_sp_sb_port_pool_get, 4888 .sb_port_pool_set = mlxsw_sp_sb_port_pool_set, 4889 .sb_tc_pool_bind_get = mlxsw_sp_sb_tc_pool_bind_get, 4890 .sb_tc_pool_bind_set = mlxsw_sp_sb_tc_pool_bind_set, 4891 .sb_occ_snapshot = mlxsw_sp_sb_occ_snapshot, 4892 .sb_occ_max_clear = mlxsw_sp_sb_occ_max_clear, 4893 .sb_occ_port_pool_get = mlxsw_sp_sb_occ_port_pool_get, 4894 .sb_occ_tc_port_bind_get = mlxsw_sp_sb_occ_tc_port_bind_get, 4895 .txhdr_construct = mlxsw_sp_txhdr_construct, 4896 .resources_register = mlxsw_sp1_resources_register, 4897 .kvd_sizes_get = mlxsw_sp_kvd_sizes_get, 4898 .params_register = mlxsw_sp_params_register, 4899 .params_unregister = mlxsw_sp_params_unregister, 4900 .txhdr_len = MLXSW_TXHDR_LEN, 4901 .profile = &mlxsw_sp1_config_profile, 4902 .res_query_enabled = true, 4903 }; 4904 4905 static struct mlxsw_driver mlxsw_sp2_driver = { 4906 .kind = mlxsw_sp2_driver_name, 4907 .priv_size = sizeof(struct mlxsw_sp), 4908 .init = mlxsw_sp2_init, 4909 .fini = mlxsw_sp_fini, 4910 .basic_trap_groups_set = mlxsw_sp_basic_trap_groups_set, 4911 .port_split = mlxsw_sp_port_split, 4912 .port_unsplit = mlxsw_sp_port_unsplit, 4913 .sb_pool_get = mlxsw_sp_sb_pool_get, 4914 .sb_pool_set = mlxsw_sp_sb_pool_set, 4915 .sb_port_pool_get = mlxsw_sp_sb_port_pool_get, 4916 .sb_port_pool_set = mlxsw_sp_sb_port_pool_set, 4917 .sb_tc_pool_bind_get = mlxsw_sp_sb_tc_pool_bind_get, 4918 .sb_tc_pool_bind_set = mlxsw_sp_sb_tc_pool_bind_set, 4919 .sb_occ_snapshot = mlxsw_sp_sb_occ_snapshot, 4920 .sb_occ_max_clear = mlxsw_sp_sb_occ_max_clear, 4921 .sb_occ_port_pool_get = mlxsw_sp_sb_occ_port_pool_get, 4922 .sb_occ_tc_port_bind_get = mlxsw_sp_sb_occ_tc_port_bind_get, 4923 .txhdr_construct = mlxsw_sp_txhdr_construct, 4924 .resources_register = mlxsw_sp2_resources_register, 4925 .params_register = mlxsw_sp2_params_register, 4926 .params_unregister = mlxsw_sp2_params_unregister, 4927 .txhdr_len = MLXSW_TXHDR_LEN, 4928 .profile = &mlxsw_sp2_config_profile, 4929 .res_query_enabled = true, 4930 }; 4931 4932 bool mlxsw_sp_port_dev_check(const struct net_device *dev) 4933 { 4934 return dev->netdev_ops == &mlxsw_sp_port_netdev_ops; 4935 } 4936 4937 static int mlxsw_sp_lower_dev_walk(struct net_device *lower_dev, void *data) 4938 { 4939 struct mlxsw_sp_port **p_mlxsw_sp_port = data; 4940 int ret = 0; 4941 4942 if (mlxsw_sp_port_dev_check(lower_dev)) { 4943 *p_mlxsw_sp_port = netdev_priv(lower_dev); 4944 ret = 1; 4945 } 4946 4947 return ret; 4948 } 4949 4950 struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find(struct net_device *dev) 4951 { 4952 struct mlxsw_sp_port *mlxsw_sp_port; 4953 4954 if (mlxsw_sp_port_dev_check(dev)) 4955 return netdev_priv(dev); 4956 4957 mlxsw_sp_port = NULL; 4958 netdev_walk_all_lower_dev(dev, mlxsw_sp_lower_dev_walk, &mlxsw_sp_port); 4959 4960 return mlxsw_sp_port; 4961 } 4962 4963 struct mlxsw_sp *mlxsw_sp_lower_get(struct net_device *dev) 4964 { 4965 struct mlxsw_sp_port *mlxsw_sp_port; 4966 4967 mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(dev); 4968 return mlxsw_sp_port ? mlxsw_sp_port->mlxsw_sp : NULL; 4969 } 4970 4971 struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find_rcu(struct net_device *dev) 4972 { 4973 struct mlxsw_sp_port *mlxsw_sp_port; 4974 4975 if (mlxsw_sp_port_dev_check(dev)) 4976 return netdev_priv(dev); 4977 4978 mlxsw_sp_port = NULL; 4979 netdev_walk_all_lower_dev_rcu(dev, mlxsw_sp_lower_dev_walk, 4980 &mlxsw_sp_port); 4981 4982 return mlxsw_sp_port; 4983 } 4984 4985 struct mlxsw_sp_port *mlxsw_sp_port_lower_dev_hold(struct net_device *dev) 4986 { 4987 struct mlxsw_sp_port *mlxsw_sp_port; 4988 4989 rcu_read_lock(); 4990 mlxsw_sp_port = mlxsw_sp_port_dev_lower_find_rcu(dev); 4991 if (mlxsw_sp_port) 4992 dev_hold(mlxsw_sp_port->dev); 4993 rcu_read_unlock(); 4994 return mlxsw_sp_port; 4995 } 4996 4997 void mlxsw_sp_port_dev_put(struct mlxsw_sp_port *mlxsw_sp_port) 4998 { 4999 dev_put(mlxsw_sp_port->dev); 5000 } 5001 5002 static void 5003 mlxsw_sp_port_lag_uppers_cleanup(struct mlxsw_sp_port *mlxsw_sp_port, 5004 struct net_device *lag_dev) 5005 { 5006 struct net_device *br_dev = netdev_master_upper_dev_get(lag_dev); 5007 struct net_device *upper_dev; 5008 struct list_head *iter; 5009 5010 if (netif_is_bridge_port(lag_dev)) 5011 mlxsw_sp_port_bridge_leave(mlxsw_sp_port, lag_dev, br_dev); 5012 5013 netdev_for_each_upper_dev_rcu(lag_dev, upper_dev, iter) { 5014 if (!netif_is_bridge_port(upper_dev)) 5015 continue; 5016 br_dev = netdev_master_upper_dev_get(upper_dev); 5017 mlxsw_sp_port_bridge_leave(mlxsw_sp_port, upper_dev, br_dev); 5018 } 5019 } 5020 5021 static int mlxsw_sp_lag_create(struct mlxsw_sp *mlxsw_sp, u16 lag_id) 5022 { 5023 char sldr_pl[MLXSW_REG_SLDR_LEN]; 5024 5025 mlxsw_reg_sldr_lag_create_pack(sldr_pl, lag_id); 5026 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); 5027 } 5028 5029 static int mlxsw_sp_lag_destroy(struct mlxsw_sp *mlxsw_sp, u16 lag_id) 5030 { 5031 char sldr_pl[MLXSW_REG_SLDR_LEN]; 5032 5033 mlxsw_reg_sldr_lag_destroy_pack(sldr_pl, lag_id); 5034 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); 5035 } 5036 5037 static int mlxsw_sp_lag_col_port_add(struct mlxsw_sp_port *mlxsw_sp_port, 5038 u16 lag_id, u8 port_index) 5039 { 5040 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 5041 char slcor_pl[MLXSW_REG_SLCOR_LEN]; 5042 5043 mlxsw_reg_slcor_port_add_pack(slcor_pl, mlxsw_sp_port->local_port, 5044 lag_id, port_index); 5045 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); 5046 } 5047 5048 static int mlxsw_sp_lag_col_port_remove(struct mlxsw_sp_port *mlxsw_sp_port, 5049 u16 lag_id) 5050 { 5051 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 5052 char slcor_pl[MLXSW_REG_SLCOR_LEN]; 5053 5054 mlxsw_reg_slcor_port_remove_pack(slcor_pl, mlxsw_sp_port->local_port, 5055 lag_id); 5056 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); 5057 } 5058 5059 static int mlxsw_sp_lag_col_port_enable(struct mlxsw_sp_port *mlxsw_sp_port, 5060 u16 lag_id) 5061 { 5062 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 5063 char slcor_pl[MLXSW_REG_SLCOR_LEN]; 5064 5065 mlxsw_reg_slcor_col_enable_pack(slcor_pl, mlxsw_sp_port->local_port, 5066 lag_id); 5067 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); 5068 } 5069 5070 static int mlxsw_sp_lag_col_port_disable(struct mlxsw_sp_port *mlxsw_sp_port, 5071 u16 lag_id) 5072 { 5073 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 5074 char slcor_pl[MLXSW_REG_SLCOR_LEN]; 5075 5076 mlxsw_reg_slcor_col_disable_pack(slcor_pl, mlxsw_sp_port->local_port, 5077 lag_id); 5078 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); 5079 } 5080 5081 static int mlxsw_sp_lag_index_get(struct mlxsw_sp *mlxsw_sp, 5082 struct net_device *lag_dev, 5083 u16 *p_lag_id) 5084 { 5085 struct mlxsw_sp_upper *lag; 5086 int free_lag_id = -1; 5087 u64 max_lag; 5088 int i; 5089 5090 max_lag = MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_LAG); 5091 for (i = 0; i < max_lag; i++) { 5092 lag = mlxsw_sp_lag_get(mlxsw_sp, i); 5093 if (lag->ref_count) { 5094 if (lag->dev == lag_dev) { 5095 *p_lag_id = i; 5096 return 0; 5097 } 5098 } else if (free_lag_id < 0) { 5099 free_lag_id = i; 5100 } 5101 } 5102 if (free_lag_id < 0) 5103 return -EBUSY; 5104 *p_lag_id = free_lag_id; 5105 return 0; 5106 } 5107 5108 static bool 5109 mlxsw_sp_master_lag_check(struct mlxsw_sp *mlxsw_sp, 5110 struct net_device *lag_dev, 5111 struct netdev_lag_upper_info *lag_upper_info, 5112 struct netlink_ext_ack *extack) 5113 { 5114 u16 lag_id; 5115 5116 if (mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id) != 0) { 5117 NL_SET_ERR_MSG_MOD(extack, "Exceeded number of supported LAG devices"); 5118 return false; 5119 } 5120 if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH) { 5121 NL_SET_ERR_MSG_MOD(extack, "LAG device using unsupported Tx type"); 5122 return false; 5123 } 5124 return true; 5125 } 5126 5127 static int mlxsw_sp_port_lag_index_get(struct mlxsw_sp *mlxsw_sp, 5128 u16 lag_id, u8 *p_port_index) 5129 { 5130 u64 max_lag_members; 5131 int i; 5132 5133 max_lag_members = MLXSW_CORE_RES_GET(mlxsw_sp->core, 5134 MAX_LAG_MEMBERS); 5135 for (i = 0; i < max_lag_members; i++) { 5136 if (!mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i)) { 5137 *p_port_index = i; 5138 return 0; 5139 } 5140 } 5141 return -EBUSY; 5142 } 5143 5144 static int mlxsw_sp_port_lag_join(struct mlxsw_sp_port *mlxsw_sp_port, 5145 struct net_device *lag_dev) 5146 { 5147 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 5148 struct mlxsw_sp_upper *lag; 5149 u16 lag_id; 5150 u8 port_index; 5151 int err; 5152 5153 err = mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id); 5154 if (err) 5155 return err; 5156 lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id); 5157 if (!lag->ref_count) { 5158 err = mlxsw_sp_lag_create(mlxsw_sp, lag_id); 5159 if (err) 5160 return err; 5161 lag->dev = lag_dev; 5162 } 5163 5164 err = mlxsw_sp_port_lag_index_get(mlxsw_sp, lag_id, &port_index); 5165 if (err) 5166 return err; 5167 err = mlxsw_sp_lag_col_port_add(mlxsw_sp_port, lag_id, port_index); 5168 if (err) 5169 goto err_col_port_add; 5170 5171 mlxsw_core_lag_mapping_set(mlxsw_sp->core, lag_id, port_index, 5172 mlxsw_sp_port->local_port); 5173 mlxsw_sp_port->lag_id = lag_id; 5174 mlxsw_sp_port->lagged = 1; 5175 lag->ref_count++; 5176 5177 /* Port is no longer usable as a router interface */ 5178 if (mlxsw_sp_port->default_vlan->fid) 5179 mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port->default_vlan); 5180 5181 return 0; 5182 5183 err_col_port_add: 5184 if (!lag->ref_count) 5185 mlxsw_sp_lag_destroy(mlxsw_sp, lag_id); 5186 return err; 5187 } 5188 5189 static void mlxsw_sp_port_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port, 5190 struct net_device *lag_dev) 5191 { 5192 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 5193 u16 lag_id = mlxsw_sp_port->lag_id; 5194 struct mlxsw_sp_upper *lag; 5195 5196 if (!mlxsw_sp_port->lagged) 5197 return; 5198 lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id); 5199 WARN_ON(lag->ref_count == 0); 5200 5201 mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id); 5202 5203 /* Any VLANs configured on the port are no longer valid */ 5204 mlxsw_sp_port_vlan_flush(mlxsw_sp_port, false); 5205 mlxsw_sp_port_vlan_cleanup(mlxsw_sp_port->default_vlan); 5206 /* Make the LAG and its directly linked uppers leave bridges they 5207 * are memeber in 5208 */ 5209 mlxsw_sp_port_lag_uppers_cleanup(mlxsw_sp_port, lag_dev); 5210 5211 if (lag->ref_count == 1) 5212 mlxsw_sp_lag_destroy(mlxsw_sp, lag_id); 5213 5214 mlxsw_core_lag_mapping_clear(mlxsw_sp->core, lag_id, 5215 mlxsw_sp_port->local_port); 5216 mlxsw_sp_port->lagged = 0; 5217 lag->ref_count--; 5218 5219 /* Make sure untagged frames are allowed to ingress */ 5220 mlxsw_sp_port_pvid_set(mlxsw_sp_port, MLXSW_SP_DEFAULT_VID); 5221 } 5222 5223 static int mlxsw_sp_lag_dist_port_add(struct mlxsw_sp_port *mlxsw_sp_port, 5224 u16 lag_id) 5225 { 5226 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 5227 char sldr_pl[MLXSW_REG_SLDR_LEN]; 5228 5229 mlxsw_reg_sldr_lag_add_port_pack(sldr_pl, lag_id, 5230 mlxsw_sp_port->local_port); 5231 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); 5232 } 5233 5234 static int mlxsw_sp_lag_dist_port_remove(struct mlxsw_sp_port *mlxsw_sp_port, 5235 u16 lag_id) 5236 { 5237 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 5238 char sldr_pl[MLXSW_REG_SLDR_LEN]; 5239 5240 mlxsw_reg_sldr_lag_remove_port_pack(sldr_pl, lag_id, 5241 mlxsw_sp_port->local_port); 5242 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); 5243 } 5244 5245 static int 5246 mlxsw_sp_port_lag_col_dist_enable(struct mlxsw_sp_port *mlxsw_sp_port) 5247 { 5248 int err; 5249 5250 err = mlxsw_sp_lag_col_port_enable(mlxsw_sp_port, 5251 mlxsw_sp_port->lag_id); 5252 if (err) 5253 return err; 5254 5255 err = mlxsw_sp_lag_dist_port_add(mlxsw_sp_port, mlxsw_sp_port->lag_id); 5256 if (err) 5257 goto err_dist_port_add; 5258 5259 return 0; 5260 5261 err_dist_port_add: 5262 mlxsw_sp_lag_col_port_disable(mlxsw_sp_port, mlxsw_sp_port->lag_id); 5263 return err; 5264 } 5265 5266 static int 5267 mlxsw_sp_port_lag_col_dist_disable(struct mlxsw_sp_port *mlxsw_sp_port) 5268 { 5269 int err; 5270 5271 err = mlxsw_sp_lag_dist_port_remove(mlxsw_sp_port, 5272 mlxsw_sp_port->lag_id); 5273 if (err) 5274 return err; 5275 5276 err = mlxsw_sp_lag_col_port_disable(mlxsw_sp_port, 5277 mlxsw_sp_port->lag_id); 5278 if (err) 5279 goto err_col_port_disable; 5280 5281 return 0; 5282 5283 err_col_port_disable: 5284 mlxsw_sp_lag_dist_port_add(mlxsw_sp_port, mlxsw_sp_port->lag_id); 5285 return err; 5286 } 5287 5288 static int mlxsw_sp_port_lag_changed(struct mlxsw_sp_port *mlxsw_sp_port, 5289 struct netdev_lag_lower_state_info *info) 5290 { 5291 if (info->tx_enabled) 5292 return mlxsw_sp_port_lag_col_dist_enable(mlxsw_sp_port); 5293 else 5294 return mlxsw_sp_port_lag_col_dist_disable(mlxsw_sp_port); 5295 } 5296 5297 static int mlxsw_sp_port_stp_set(struct mlxsw_sp_port *mlxsw_sp_port, 5298 bool enable) 5299 { 5300 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 5301 enum mlxsw_reg_spms_state spms_state; 5302 char *spms_pl; 5303 u16 vid; 5304 int err; 5305 5306 spms_state = enable ? MLXSW_REG_SPMS_STATE_FORWARDING : 5307 MLXSW_REG_SPMS_STATE_DISCARDING; 5308 5309 spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL); 5310 if (!spms_pl) 5311 return -ENOMEM; 5312 mlxsw_reg_spms_pack(spms_pl, mlxsw_sp_port->local_port); 5313 5314 for (vid = 0; vid < VLAN_N_VID; vid++) 5315 mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state); 5316 5317 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spms), spms_pl); 5318 kfree(spms_pl); 5319 return err; 5320 } 5321 5322 static int mlxsw_sp_port_ovs_join(struct mlxsw_sp_port *mlxsw_sp_port) 5323 { 5324 u16 vid = 1; 5325 int err; 5326 5327 err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, true); 5328 if (err) 5329 return err; 5330 err = mlxsw_sp_port_stp_set(mlxsw_sp_port, true); 5331 if (err) 5332 goto err_port_stp_set; 5333 err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, 1, VLAN_N_VID - 2, 5334 true, false); 5335 if (err) 5336 goto err_port_vlan_set; 5337 5338 for (; vid <= VLAN_N_VID - 1; vid++) { 5339 err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, 5340 vid, false); 5341 if (err) 5342 goto err_vid_learning_set; 5343 } 5344 5345 return 0; 5346 5347 err_vid_learning_set: 5348 for (vid--; vid >= 1; vid--) 5349 mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, true); 5350 err_port_vlan_set: 5351 mlxsw_sp_port_stp_set(mlxsw_sp_port, false); 5352 err_port_stp_set: 5353 mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, false); 5354 return err; 5355 } 5356 5357 static void mlxsw_sp_port_ovs_leave(struct mlxsw_sp_port *mlxsw_sp_port) 5358 { 5359 u16 vid; 5360 5361 for (vid = VLAN_N_VID - 1; vid >= 1; vid--) 5362 mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, 5363 vid, true); 5364 5365 mlxsw_sp_port_vlan_set(mlxsw_sp_port, 1, VLAN_N_VID - 2, 5366 false, false); 5367 mlxsw_sp_port_stp_set(mlxsw_sp_port, false); 5368 mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, false); 5369 } 5370 5371 static bool mlxsw_sp_bridge_has_multiple_vxlans(struct net_device *br_dev) 5372 { 5373 unsigned int num_vxlans = 0; 5374 struct net_device *dev; 5375 struct list_head *iter; 5376 5377 netdev_for_each_lower_dev(br_dev, dev, iter) { 5378 if (netif_is_vxlan(dev)) 5379 num_vxlans++; 5380 } 5381 5382 return num_vxlans > 1; 5383 } 5384 5385 static bool mlxsw_sp_bridge_vxlan_vlan_is_valid(struct net_device *br_dev) 5386 { 5387 DECLARE_BITMAP(vlans, VLAN_N_VID) = {0}; 5388 struct net_device *dev; 5389 struct list_head *iter; 5390 5391 netdev_for_each_lower_dev(br_dev, dev, iter) { 5392 u16 pvid; 5393 int err; 5394 5395 if (!netif_is_vxlan(dev)) 5396 continue; 5397 5398 err = mlxsw_sp_vxlan_mapped_vid(dev, &pvid); 5399 if (err || !pvid) 5400 continue; 5401 5402 if (test_and_set_bit(pvid, vlans)) 5403 return false; 5404 } 5405 5406 return true; 5407 } 5408 5409 static bool mlxsw_sp_bridge_vxlan_is_valid(struct net_device *br_dev, 5410 struct netlink_ext_ack *extack) 5411 { 5412 if (br_multicast_enabled(br_dev)) { 5413 NL_SET_ERR_MSG_MOD(extack, "Multicast can not be enabled on a bridge with a VxLAN device"); 5414 return false; 5415 } 5416 5417 if (!br_vlan_enabled(br_dev) && 5418 mlxsw_sp_bridge_has_multiple_vxlans(br_dev)) { 5419 NL_SET_ERR_MSG_MOD(extack, "Multiple VxLAN devices are not supported in a VLAN-unaware bridge"); 5420 return false; 5421 } 5422 5423 if (br_vlan_enabled(br_dev) && 5424 !mlxsw_sp_bridge_vxlan_vlan_is_valid(br_dev)) { 5425 NL_SET_ERR_MSG_MOD(extack, "Multiple VxLAN devices cannot have the same VLAN as PVID and egress untagged"); 5426 return false; 5427 } 5428 5429 return true; 5430 } 5431 5432 static int mlxsw_sp_netdevice_port_upper_event(struct net_device *lower_dev, 5433 struct net_device *dev, 5434 unsigned long event, void *ptr) 5435 { 5436 struct netdev_notifier_changeupper_info *info; 5437 struct mlxsw_sp_port *mlxsw_sp_port; 5438 struct netlink_ext_ack *extack; 5439 struct net_device *upper_dev; 5440 struct mlxsw_sp *mlxsw_sp; 5441 int err = 0; 5442 5443 mlxsw_sp_port = netdev_priv(dev); 5444 mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 5445 info = ptr; 5446 extack = netdev_notifier_info_to_extack(&info->info); 5447 5448 switch (event) { 5449 case NETDEV_PRECHANGEUPPER: 5450 upper_dev = info->upper_dev; 5451 if (!is_vlan_dev(upper_dev) && 5452 !netif_is_lag_master(upper_dev) && 5453 !netif_is_bridge_master(upper_dev) && 5454 !netif_is_ovs_master(upper_dev) && 5455 !netif_is_macvlan(upper_dev)) { 5456 NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type"); 5457 return -EINVAL; 5458 } 5459 if (!info->linking) 5460 break; 5461 if (netif_is_bridge_master(upper_dev) && 5462 !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp, upper_dev) && 5463 mlxsw_sp_bridge_has_vxlan(upper_dev) && 5464 !mlxsw_sp_bridge_vxlan_is_valid(upper_dev, extack)) 5465 return -EOPNOTSUPP; 5466 if (netdev_has_any_upper_dev(upper_dev) && 5467 (!netif_is_bridge_master(upper_dev) || 5468 !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp, 5469 upper_dev))) { 5470 NL_SET_ERR_MSG_MOD(extack, "Enslaving a port to a device that already has an upper device is not supported"); 5471 return -EINVAL; 5472 } 5473 if (netif_is_lag_master(upper_dev) && 5474 !mlxsw_sp_master_lag_check(mlxsw_sp, upper_dev, 5475 info->upper_info, extack)) 5476 return -EINVAL; 5477 if (netif_is_lag_master(upper_dev) && vlan_uses_dev(dev)) { 5478 NL_SET_ERR_MSG_MOD(extack, "Master device is a LAG master and this device has a VLAN"); 5479 return -EINVAL; 5480 } 5481 if (netif_is_lag_port(dev) && is_vlan_dev(upper_dev) && 5482 !netif_is_lag_master(vlan_dev_real_dev(upper_dev))) { 5483 NL_SET_ERR_MSG_MOD(extack, "Can not put a VLAN on a LAG port"); 5484 return -EINVAL; 5485 } 5486 if (netif_is_macvlan(upper_dev) && 5487 !mlxsw_sp_rif_find_by_dev(mlxsw_sp, lower_dev)) { 5488 NL_SET_ERR_MSG_MOD(extack, "macvlan is only supported on top of router interfaces"); 5489 return -EOPNOTSUPP; 5490 } 5491 if (netif_is_ovs_master(upper_dev) && vlan_uses_dev(dev)) { 5492 NL_SET_ERR_MSG_MOD(extack, "Master device is an OVS master and this device has a VLAN"); 5493 return -EINVAL; 5494 } 5495 if (netif_is_ovs_port(dev) && is_vlan_dev(upper_dev)) { 5496 NL_SET_ERR_MSG_MOD(extack, "Can not put a VLAN on an OVS port"); 5497 return -EINVAL; 5498 } 5499 break; 5500 case NETDEV_CHANGEUPPER: 5501 upper_dev = info->upper_dev; 5502 if (netif_is_bridge_master(upper_dev)) { 5503 if (info->linking) 5504 err = mlxsw_sp_port_bridge_join(mlxsw_sp_port, 5505 lower_dev, 5506 upper_dev, 5507 extack); 5508 else 5509 mlxsw_sp_port_bridge_leave(mlxsw_sp_port, 5510 lower_dev, 5511 upper_dev); 5512 } else if (netif_is_lag_master(upper_dev)) { 5513 if (info->linking) { 5514 err = mlxsw_sp_port_lag_join(mlxsw_sp_port, 5515 upper_dev); 5516 } else { 5517 mlxsw_sp_port_lag_col_dist_disable(mlxsw_sp_port); 5518 mlxsw_sp_port_lag_leave(mlxsw_sp_port, 5519 upper_dev); 5520 } 5521 } else if (netif_is_ovs_master(upper_dev)) { 5522 if (info->linking) 5523 err = mlxsw_sp_port_ovs_join(mlxsw_sp_port); 5524 else 5525 mlxsw_sp_port_ovs_leave(mlxsw_sp_port); 5526 } else if (netif_is_macvlan(upper_dev)) { 5527 if (!info->linking) 5528 mlxsw_sp_rif_macvlan_del(mlxsw_sp, upper_dev); 5529 } else if (is_vlan_dev(upper_dev)) { 5530 struct net_device *br_dev; 5531 5532 if (!netif_is_bridge_port(upper_dev)) 5533 break; 5534 if (info->linking) 5535 break; 5536 br_dev = netdev_master_upper_dev_get(upper_dev); 5537 mlxsw_sp_port_bridge_leave(mlxsw_sp_port, upper_dev, 5538 br_dev); 5539 } 5540 break; 5541 } 5542 5543 return err; 5544 } 5545 5546 static int mlxsw_sp_netdevice_port_lower_event(struct net_device *dev, 5547 unsigned long event, void *ptr) 5548 { 5549 struct netdev_notifier_changelowerstate_info *info; 5550 struct mlxsw_sp_port *mlxsw_sp_port; 5551 int err; 5552 5553 mlxsw_sp_port = netdev_priv(dev); 5554 info = ptr; 5555 5556 switch (event) { 5557 case NETDEV_CHANGELOWERSTATE: 5558 if (netif_is_lag_port(dev) && mlxsw_sp_port->lagged) { 5559 err = mlxsw_sp_port_lag_changed(mlxsw_sp_port, 5560 info->lower_state_info); 5561 if (err) 5562 netdev_err(dev, "Failed to reflect link aggregation lower state change\n"); 5563 } 5564 break; 5565 } 5566 5567 return 0; 5568 } 5569 5570 static int mlxsw_sp_netdevice_port_event(struct net_device *lower_dev, 5571 struct net_device *port_dev, 5572 unsigned long event, void *ptr) 5573 { 5574 switch (event) { 5575 case NETDEV_PRECHANGEUPPER: 5576 case NETDEV_CHANGEUPPER: 5577 return mlxsw_sp_netdevice_port_upper_event(lower_dev, port_dev, 5578 event, ptr); 5579 case NETDEV_CHANGELOWERSTATE: 5580 return mlxsw_sp_netdevice_port_lower_event(port_dev, event, 5581 ptr); 5582 } 5583 5584 return 0; 5585 } 5586 5587 static int mlxsw_sp_netdevice_lag_event(struct net_device *lag_dev, 5588 unsigned long event, void *ptr) 5589 { 5590 struct net_device *dev; 5591 struct list_head *iter; 5592 int ret; 5593 5594 netdev_for_each_lower_dev(lag_dev, dev, iter) { 5595 if (mlxsw_sp_port_dev_check(dev)) { 5596 ret = mlxsw_sp_netdevice_port_event(lag_dev, dev, event, 5597 ptr); 5598 if (ret) 5599 return ret; 5600 } 5601 } 5602 5603 return 0; 5604 } 5605 5606 static int mlxsw_sp_netdevice_port_vlan_event(struct net_device *vlan_dev, 5607 struct net_device *dev, 5608 unsigned long event, void *ptr, 5609 u16 vid) 5610 { 5611 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 5612 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 5613 struct netdev_notifier_changeupper_info *info = ptr; 5614 struct netlink_ext_ack *extack; 5615 struct net_device *upper_dev; 5616 int err = 0; 5617 5618 extack = netdev_notifier_info_to_extack(&info->info); 5619 5620 switch (event) { 5621 case NETDEV_PRECHANGEUPPER: 5622 upper_dev = info->upper_dev; 5623 if (!netif_is_bridge_master(upper_dev) && 5624 !netif_is_macvlan(upper_dev)) { 5625 NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type"); 5626 return -EINVAL; 5627 } 5628 if (!info->linking) 5629 break; 5630 if (netif_is_bridge_master(upper_dev) && 5631 !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp, upper_dev) && 5632 mlxsw_sp_bridge_has_vxlan(upper_dev) && 5633 !mlxsw_sp_bridge_vxlan_is_valid(upper_dev, extack)) 5634 return -EOPNOTSUPP; 5635 if (netdev_has_any_upper_dev(upper_dev) && 5636 (!netif_is_bridge_master(upper_dev) || 5637 !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp, 5638 upper_dev))) { 5639 NL_SET_ERR_MSG_MOD(extack, "Enslaving a port to a device that already has an upper device is not supported"); 5640 return -EINVAL; 5641 } 5642 if (netif_is_macvlan(upper_dev) && 5643 !mlxsw_sp_rif_find_by_dev(mlxsw_sp, vlan_dev)) { 5644 NL_SET_ERR_MSG_MOD(extack, "macvlan is only supported on top of router interfaces"); 5645 return -EOPNOTSUPP; 5646 } 5647 break; 5648 case NETDEV_CHANGEUPPER: 5649 upper_dev = info->upper_dev; 5650 if (netif_is_bridge_master(upper_dev)) { 5651 if (info->linking) 5652 err = mlxsw_sp_port_bridge_join(mlxsw_sp_port, 5653 vlan_dev, 5654 upper_dev, 5655 extack); 5656 else 5657 mlxsw_sp_port_bridge_leave(mlxsw_sp_port, 5658 vlan_dev, 5659 upper_dev); 5660 } else if (netif_is_macvlan(upper_dev)) { 5661 if (!info->linking) 5662 mlxsw_sp_rif_macvlan_del(mlxsw_sp, upper_dev); 5663 } else { 5664 err = -EINVAL; 5665 WARN_ON(1); 5666 } 5667 break; 5668 } 5669 5670 return err; 5671 } 5672 5673 static int mlxsw_sp_netdevice_lag_port_vlan_event(struct net_device *vlan_dev, 5674 struct net_device *lag_dev, 5675 unsigned long event, 5676 void *ptr, u16 vid) 5677 { 5678 struct net_device *dev; 5679 struct list_head *iter; 5680 int ret; 5681 5682 netdev_for_each_lower_dev(lag_dev, dev, iter) { 5683 if (mlxsw_sp_port_dev_check(dev)) { 5684 ret = mlxsw_sp_netdevice_port_vlan_event(vlan_dev, dev, 5685 event, ptr, 5686 vid); 5687 if (ret) 5688 return ret; 5689 } 5690 } 5691 5692 return 0; 5693 } 5694 5695 static int mlxsw_sp_netdevice_bridge_vlan_event(struct net_device *vlan_dev, 5696 struct net_device *br_dev, 5697 unsigned long event, void *ptr, 5698 u16 vid) 5699 { 5700 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(vlan_dev); 5701 struct netdev_notifier_changeupper_info *info = ptr; 5702 struct netlink_ext_ack *extack; 5703 struct net_device *upper_dev; 5704 5705 if (!mlxsw_sp) 5706 return 0; 5707 5708 extack = netdev_notifier_info_to_extack(&info->info); 5709 5710 switch (event) { 5711 case NETDEV_PRECHANGEUPPER: 5712 upper_dev = info->upper_dev; 5713 if (!netif_is_macvlan(upper_dev)) { 5714 NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type"); 5715 return -EOPNOTSUPP; 5716 } 5717 if (!info->linking) 5718 break; 5719 if (netif_is_macvlan(upper_dev) && 5720 !mlxsw_sp_rif_find_by_dev(mlxsw_sp, vlan_dev)) { 5721 NL_SET_ERR_MSG_MOD(extack, "macvlan is only supported on top of router interfaces"); 5722 return -EOPNOTSUPP; 5723 } 5724 break; 5725 case NETDEV_CHANGEUPPER: 5726 upper_dev = info->upper_dev; 5727 if (info->linking) 5728 break; 5729 if (netif_is_macvlan(upper_dev)) 5730 mlxsw_sp_rif_macvlan_del(mlxsw_sp, upper_dev); 5731 break; 5732 } 5733 5734 return 0; 5735 } 5736 5737 static int mlxsw_sp_netdevice_vlan_event(struct net_device *vlan_dev, 5738 unsigned long event, void *ptr) 5739 { 5740 struct net_device *real_dev = vlan_dev_real_dev(vlan_dev); 5741 u16 vid = vlan_dev_vlan_id(vlan_dev); 5742 5743 if (mlxsw_sp_port_dev_check(real_dev)) 5744 return mlxsw_sp_netdevice_port_vlan_event(vlan_dev, real_dev, 5745 event, ptr, vid); 5746 else if (netif_is_lag_master(real_dev)) 5747 return mlxsw_sp_netdevice_lag_port_vlan_event(vlan_dev, 5748 real_dev, event, 5749 ptr, vid); 5750 else if (netif_is_bridge_master(real_dev)) 5751 return mlxsw_sp_netdevice_bridge_vlan_event(vlan_dev, real_dev, 5752 event, ptr, vid); 5753 5754 return 0; 5755 } 5756 5757 static int mlxsw_sp_netdevice_bridge_event(struct net_device *br_dev, 5758 unsigned long event, void *ptr) 5759 { 5760 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(br_dev); 5761 struct netdev_notifier_changeupper_info *info = ptr; 5762 struct netlink_ext_ack *extack; 5763 struct net_device *upper_dev; 5764 5765 if (!mlxsw_sp) 5766 return 0; 5767 5768 extack = netdev_notifier_info_to_extack(&info->info); 5769 5770 switch (event) { 5771 case NETDEV_PRECHANGEUPPER: 5772 upper_dev = info->upper_dev; 5773 if (!is_vlan_dev(upper_dev) && !netif_is_macvlan(upper_dev)) { 5774 NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type"); 5775 return -EOPNOTSUPP; 5776 } 5777 if (!info->linking) 5778 break; 5779 if (netif_is_macvlan(upper_dev) && 5780 !mlxsw_sp_rif_find_by_dev(mlxsw_sp, br_dev)) { 5781 NL_SET_ERR_MSG_MOD(extack, "macvlan is only supported on top of router interfaces"); 5782 return -EOPNOTSUPP; 5783 } 5784 break; 5785 case NETDEV_CHANGEUPPER: 5786 upper_dev = info->upper_dev; 5787 if (info->linking) 5788 break; 5789 if (is_vlan_dev(upper_dev)) 5790 mlxsw_sp_rif_destroy_by_dev(mlxsw_sp, upper_dev); 5791 if (netif_is_macvlan(upper_dev)) 5792 mlxsw_sp_rif_macvlan_del(mlxsw_sp, upper_dev); 5793 break; 5794 } 5795 5796 return 0; 5797 } 5798 5799 static int mlxsw_sp_netdevice_macvlan_event(struct net_device *macvlan_dev, 5800 unsigned long event, void *ptr) 5801 { 5802 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(macvlan_dev); 5803 struct netdev_notifier_changeupper_info *info = ptr; 5804 struct netlink_ext_ack *extack; 5805 5806 if (!mlxsw_sp || event != NETDEV_PRECHANGEUPPER) 5807 return 0; 5808 5809 extack = netdev_notifier_info_to_extack(&info->info); 5810 5811 /* VRF enslavement is handled in mlxsw_sp_netdevice_vrf_event() */ 5812 NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type"); 5813 5814 return -EOPNOTSUPP; 5815 } 5816 5817 static bool mlxsw_sp_is_vrf_event(unsigned long event, void *ptr) 5818 { 5819 struct netdev_notifier_changeupper_info *info = ptr; 5820 5821 if (event != NETDEV_PRECHANGEUPPER && event != NETDEV_CHANGEUPPER) 5822 return false; 5823 return netif_is_l3_master(info->upper_dev); 5824 } 5825 5826 static int mlxsw_sp_netdevice_vxlan_event(struct mlxsw_sp *mlxsw_sp, 5827 struct net_device *dev, 5828 unsigned long event, void *ptr) 5829 { 5830 struct netdev_notifier_changeupper_info *cu_info; 5831 struct netdev_notifier_info *info = ptr; 5832 struct netlink_ext_ack *extack; 5833 struct net_device *upper_dev; 5834 5835 extack = netdev_notifier_info_to_extack(info); 5836 5837 switch (event) { 5838 case NETDEV_CHANGEUPPER: 5839 cu_info = container_of(info, 5840 struct netdev_notifier_changeupper_info, 5841 info); 5842 upper_dev = cu_info->upper_dev; 5843 if (!netif_is_bridge_master(upper_dev)) 5844 return 0; 5845 if (!mlxsw_sp_lower_get(upper_dev)) 5846 return 0; 5847 if (!mlxsw_sp_bridge_vxlan_is_valid(upper_dev, extack)) 5848 return -EOPNOTSUPP; 5849 if (cu_info->linking) { 5850 if (!netif_running(dev)) 5851 return 0; 5852 /* When the bridge is VLAN-aware, the VNI of the VxLAN 5853 * device needs to be mapped to a VLAN, but at this 5854 * point no VLANs are configured on the VxLAN device 5855 */ 5856 if (br_vlan_enabled(upper_dev)) 5857 return 0; 5858 return mlxsw_sp_bridge_vxlan_join(mlxsw_sp, upper_dev, 5859 dev, 0, extack); 5860 } else { 5861 /* VLANs were already flushed, which triggered the 5862 * necessary cleanup 5863 */ 5864 if (br_vlan_enabled(upper_dev)) 5865 return 0; 5866 mlxsw_sp_bridge_vxlan_leave(mlxsw_sp, dev); 5867 } 5868 break; 5869 case NETDEV_PRE_UP: 5870 upper_dev = netdev_master_upper_dev_get(dev); 5871 if (!upper_dev) 5872 return 0; 5873 if (!netif_is_bridge_master(upper_dev)) 5874 return 0; 5875 if (!mlxsw_sp_lower_get(upper_dev)) 5876 return 0; 5877 return mlxsw_sp_bridge_vxlan_join(mlxsw_sp, upper_dev, dev, 0, 5878 extack); 5879 case NETDEV_DOWN: 5880 upper_dev = netdev_master_upper_dev_get(dev); 5881 if (!upper_dev) 5882 return 0; 5883 if (!netif_is_bridge_master(upper_dev)) 5884 return 0; 5885 if (!mlxsw_sp_lower_get(upper_dev)) 5886 return 0; 5887 mlxsw_sp_bridge_vxlan_leave(mlxsw_sp, dev); 5888 break; 5889 } 5890 5891 return 0; 5892 } 5893 5894 static int mlxsw_sp_netdevice_event(struct notifier_block *nb, 5895 unsigned long event, void *ptr) 5896 { 5897 struct net_device *dev = netdev_notifier_info_to_dev(ptr); 5898 struct mlxsw_sp_span_entry *span_entry; 5899 struct mlxsw_sp *mlxsw_sp; 5900 int err = 0; 5901 5902 mlxsw_sp = container_of(nb, struct mlxsw_sp, netdevice_nb); 5903 if (event == NETDEV_UNREGISTER) { 5904 span_entry = mlxsw_sp_span_entry_find_by_port(mlxsw_sp, dev); 5905 if (span_entry) 5906 mlxsw_sp_span_entry_invalidate(mlxsw_sp, span_entry); 5907 } 5908 mlxsw_sp_span_respin(mlxsw_sp); 5909 5910 if (netif_is_vxlan(dev)) 5911 err = mlxsw_sp_netdevice_vxlan_event(mlxsw_sp, dev, event, ptr); 5912 if (mlxsw_sp_netdev_is_ipip_ol(mlxsw_sp, dev)) 5913 err = mlxsw_sp_netdevice_ipip_ol_event(mlxsw_sp, dev, 5914 event, ptr); 5915 else if (mlxsw_sp_netdev_is_ipip_ul(mlxsw_sp, dev)) 5916 err = mlxsw_sp_netdevice_ipip_ul_event(mlxsw_sp, dev, 5917 event, ptr); 5918 else if (event == NETDEV_PRE_CHANGEADDR || 5919 event == NETDEV_CHANGEADDR || 5920 event == NETDEV_CHANGEMTU) 5921 err = mlxsw_sp_netdevice_router_port_event(dev, event, ptr); 5922 else if (mlxsw_sp_is_vrf_event(event, ptr)) 5923 err = mlxsw_sp_netdevice_vrf_event(dev, event, ptr); 5924 else if (mlxsw_sp_port_dev_check(dev)) 5925 err = mlxsw_sp_netdevice_port_event(dev, dev, event, ptr); 5926 else if (netif_is_lag_master(dev)) 5927 err = mlxsw_sp_netdevice_lag_event(dev, event, ptr); 5928 else if (is_vlan_dev(dev)) 5929 err = mlxsw_sp_netdevice_vlan_event(dev, event, ptr); 5930 else if (netif_is_bridge_master(dev)) 5931 err = mlxsw_sp_netdevice_bridge_event(dev, event, ptr); 5932 else if (netif_is_macvlan(dev)) 5933 err = mlxsw_sp_netdevice_macvlan_event(dev, event, ptr); 5934 5935 return notifier_from_errno(err); 5936 } 5937 5938 static struct notifier_block mlxsw_sp_inetaddr_valid_nb __read_mostly = { 5939 .notifier_call = mlxsw_sp_inetaddr_valid_event, 5940 }; 5941 5942 static struct notifier_block mlxsw_sp_inet6addr_valid_nb __read_mostly = { 5943 .notifier_call = mlxsw_sp_inet6addr_valid_event, 5944 }; 5945 5946 static const struct pci_device_id mlxsw_sp1_pci_id_table[] = { 5947 {PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_SPECTRUM), 0}, 5948 {0, }, 5949 }; 5950 5951 static struct pci_driver mlxsw_sp1_pci_driver = { 5952 .name = mlxsw_sp1_driver_name, 5953 .id_table = mlxsw_sp1_pci_id_table, 5954 }; 5955 5956 static const struct pci_device_id mlxsw_sp2_pci_id_table[] = { 5957 {PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_SPECTRUM2), 0}, 5958 {0, }, 5959 }; 5960 5961 static struct pci_driver mlxsw_sp2_pci_driver = { 5962 .name = mlxsw_sp2_driver_name, 5963 .id_table = mlxsw_sp2_pci_id_table, 5964 }; 5965 5966 static int __init mlxsw_sp_module_init(void) 5967 { 5968 int err; 5969 5970 register_inetaddr_validator_notifier(&mlxsw_sp_inetaddr_valid_nb); 5971 register_inet6addr_validator_notifier(&mlxsw_sp_inet6addr_valid_nb); 5972 5973 err = mlxsw_core_driver_register(&mlxsw_sp1_driver); 5974 if (err) 5975 goto err_sp1_core_driver_register; 5976 5977 err = mlxsw_core_driver_register(&mlxsw_sp2_driver); 5978 if (err) 5979 goto err_sp2_core_driver_register; 5980 5981 err = mlxsw_pci_driver_register(&mlxsw_sp1_pci_driver); 5982 if (err) 5983 goto err_sp1_pci_driver_register; 5984 5985 err = mlxsw_pci_driver_register(&mlxsw_sp2_pci_driver); 5986 if (err) 5987 goto err_sp2_pci_driver_register; 5988 5989 return 0; 5990 5991 err_sp2_pci_driver_register: 5992 mlxsw_pci_driver_unregister(&mlxsw_sp2_pci_driver); 5993 err_sp1_pci_driver_register: 5994 mlxsw_core_driver_unregister(&mlxsw_sp2_driver); 5995 err_sp2_core_driver_register: 5996 mlxsw_core_driver_unregister(&mlxsw_sp1_driver); 5997 err_sp1_core_driver_register: 5998 unregister_inet6addr_validator_notifier(&mlxsw_sp_inet6addr_valid_nb); 5999 unregister_inetaddr_validator_notifier(&mlxsw_sp_inetaddr_valid_nb); 6000 return err; 6001 } 6002 6003 static void __exit mlxsw_sp_module_exit(void) 6004 { 6005 mlxsw_pci_driver_unregister(&mlxsw_sp2_pci_driver); 6006 mlxsw_pci_driver_unregister(&mlxsw_sp1_pci_driver); 6007 mlxsw_core_driver_unregister(&mlxsw_sp2_driver); 6008 mlxsw_core_driver_unregister(&mlxsw_sp1_driver); 6009 unregister_inet6addr_validator_notifier(&mlxsw_sp_inet6addr_valid_nb); 6010 unregister_inetaddr_validator_notifier(&mlxsw_sp_inetaddr_valid_nb); 6011 } 6012 6013 module_init(mlxsw_sp_module_init); 6014 module_exit(mlxsw_sp_module_exit); 6015 6016 MODULE_LICENSE("Dual BSD/GPL"); 6017 MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>"); 6018 MODULE_DESCRIPTION("Mellanox Spectrum driver"); 6019 MODULE_DEVICE_TABLE(pci, mlxsw_sp1_pci_id_table); 6020 MODULE_DEVICE_TABLE(pci, mlxsw_sp2_pci_id_table); 6021 MODULE_FIRMWARE(MLXSW_SP1_FW_FILENAME); 6022