Brandon Kim | dab96f1 | 2021-02-18 11:21:37 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2021 Google LLC |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
William A. Kennington III | 7d6fa42 | 2021-02-08 17:04:02 -0800 | [diff] [blame] | 17 | #ifndef PLATFORMS_NEMORA_PORTABLE_NCSI_H_ |
| 18 | #define PLATFORMS_NEMORA_PORTABLE_NCSI_H_ |
| 19 | |
| 20 | /* |
| 21 | * Module for interacting with NC-SI capable network cards. |
| 22 | * |
| 23 | * DMTF v1.0.0 NC-SI specification: |
| 24 | * http://www.dmtf.org/sites/default/files/standards/documents/DSP0222_1.0.0.pdf |
| 25 | */ |
| 26 | |
| 27 | #include <stdbool.h> |
| 28 | #include <stdint.h> |
| 29 | |
| 30 | #include "platforms/nemora/portable/net_types.h" |
| 31 | |
| 32 | #ifdef __cplusplus |
| 33 | extern "C" { |
| 34 | #endif |
| 35 | |
| 36 | #ifndef __packed |
| 37 | #define __packed __attribute__((packed)) |
| 38 | #endif |
| 39 | |
| 40 | // Define states for our NC-SI connection to the NIC. |
| 41 | // There is no mapping to the NC-SI specification for these states, but they |
| 42 | // reflect the outcome of NC-SI commands used in our configuration state |
| 43 | // machine. |
| 44 | // |
| 45 | // 'DOWN' - while in this state, periodically restart the configuration state |
| 46 | // machine until it succeeds. |
| 47 | // 'LOOPBACK' - the response to the first NC-SI command of the configuration |
| 48 | // state machine was identical to the command: from this we infer we are in |
| 49 | // loopback. While in this state, periodically restart the configuration state |
| 50 | // machine. |
| 51 | // 'UP' - all commands were responded successfully, but need DHCP configuration |
| 52 | // to go to the next state. While in this state, the connection is tested |
| 53 | // periodically for failures, which can bring back to 'DOWN'. |
| 54 | // 'UP_AND_CONFIGURED' - NC-SI OEM commands for L3/L4 configuration (which |
| 55 | // depend on DHCP configuration) were responded successfully. While in this |
| 56 | // state, the connection and configuration are tested periodically for |
| 57 | // failures, which can bring back to 'DOWN'. |
| 58 | // 'DISABLED' - reset default state. As soon as network is enabled (which |
| 59 | // noticeably means that ProdID must be disabled), the state goes to DOWN. |
| 60 | // TODO: connection state has nothing to do with ncsi protocol and needs |
| 61 | // to be moved to ncsi_fsm.h. The main problem with the move is that |
| 62 | // ncsi_client.h defines an extern function with this return type, that is used |
| 63 | // in a lot of places that have no business including ncsi_fsm.h |
| 64 | typedef enum { |
| 65 | NCSI_CONNECTION_DOWN, |
| 66 | NCSI_CONNECTION_LOOPBACK, |
| 67 | NCSI_CONNECTION_UP, |
| 68 | NCSI_CONNECTION_UP_AND_CONFIGURED, |
| 69 | NCSI_CONNECTION_DISABLED, |
| 70 | } ncsi_connection_state_t; |
| 71 | |
| 72 | typedef enum { |
| 73 | NCSI_RESPONSE_NONE, |
| 74 | NCSI_RESPONSE_ACK, |
| 75 | NCSI_RESPONSE_NACK, |
| 76 | NCSI_RESPONSE_UNDERSIZED, |
| 77 | NCSI_RESPONSE_UNEXPECTED_TYPE, |
| 78 | NCSI_RESPONSE_UNEXPECTED_SIZE, |
| 79 | NCSI_RESPONSE_OEM_FORMAT_ERROR, |
| 80 | NCSI_RESPONSE_TIMEOUT, |
| 81 | NCSI_RESPONSE_UNEXPECTED_PARAMS, |
| 82 | } ncsi_response_type_t; |
| 83 | |
| 84 | // For NC-SI Rev 1.0.0, the management controller ID (mc_id) is 0. |
| 85 | #define NCSI_MC_ID 0 |
| 86 | // For NC-SI Rev 1.0.0, the header revision is 0x01. |
| 87 | #define NCSI_HEADER_REV 1 |
| 88 | #define NCSI_ETHERTYPE 0x88F8 |
| 89 | #define NCSI_RESPONSE 0x80 |
| 90 | |
| 91 | // Command IDs |
| 92 | enum { |
| 93 | NCSI_CLEAR_INITIAL_STATE, |
| 94 | NCSI_SELECT_PACKAGE, |
| 95 | NCSI_DESELECT_PACKAGE, |
| 96 | NCSI_ENABLE_CHANNEL, |
| 97 | NCSI_DISABLE_CHANNEL, |
| 98 | NCSI_RESET_CHANNEL, |
| 99 | NCSI_ENABLE_CHANNEL_NETWORK_TX, |
| 100 | NCSI_DISABLE_CHANNEL_NETWORK_TX, |
| 101 | NCSI_AEN_ENABLE, |
| 102 | NCSI_SET_LINK, |
| 103 | NCSI_GET_LINK_STATUS, |
| 104 | NCSI_SET_VLAN_FILTER, |
| 105 | NCSI_ENABLE_VLAN, |
| 106 | NCSI_DISABLE_VLAN, |
| 107 | NCSI_SET_MAC_ADDRESS, |
| 108 | // 0x0F is not a valid command |
| 109 | NCSI_ENABLE_BROADCAST_FILTER = 0x10, |
| 110 | NCSI_DISABLE_BROADCAST_FILTER, |
| 111 | NCSI_ENABLE_GLOBAL_MULTICAST_FILTER, |
| 112 | NCSI_DISABLE_GLOBAL_MULTICAST_FILTER, |
| 113 | NCSI_SET_NCSI_FLOW_CONTROL, |
| 114 | NCSI_GET_VERSION_ID, |
| 115 | NCSI_GET_CAPABILITIES, |
| 116 | NCSI_GET_PARAMETERS, |
| 117 | NCSI_GET_CONTROLLER_PACKET_STATISTICS, |
| 118 | NCSI_GET_NCSI_STATISTICS, |
| 119 | NCSI_GET_PASSTHROUGH_STATISTICS, |
| 120 | // 0x1B-0x4F are not valid commands |
| 121 | NCSI_OEM_COMMAND = 0x50, |
| 122 | }; |
| 123 | // OEM Command IDs (subtypes of NCSI_OEM_COMMAND) |
| 124 | #define NCSI_OEM_COMMAND_GET_HOST_MAC 0x00 |
| 125 | #define NCSI_OEM_COMMAND_SET_FILTER 0x01 |
| 126 | #define NCSI_OEM_COMMAND_GET_FILTER 0x02 |
| 127 | #define NCSI_OEM_COMMAND_ECHO 0x03 |
| 128 | |
| 129 | #define NCSI_OEM_MANUFACTURER_ID 11129 // IANA Enterprise Number for Google. |
| 130 | #define NCSI_OEM_ECHO_PATTERN_SIZE 64 |
| 131 | |
| 132 | /* |
| 133 | * NCSI command frame with packet header as described in section 8.2.1. |
| 134 | * Prepended with an ethernet header. |
| 135 | */ |
| 136 | typedef struct __packed { |
| 137 | eth_hdr_t ethhdr; |
| 138 | uint8_t mc_id; |
| 139 | uint8_t header_revision; |
| 140 | uint8_t reserved_00; |
| 141 | uint8_t instance_id; // Destinguish retried commands from new ones. |
| 142 | uint8_t control_packet_type; // See section 8.3, and Table 17. |
| 143 | uint8_t channel_id; |
| 144 | uint16_t payload_length; // In Bytes. Excludes header, checksum, padding. |
| 145 | uint16_t reserved_01[4]; |
| 146 | } ncsi_header_t; |
| 147 | |
| 148 | /* |
| 149 | * Simple NCSI response packet. |
| 150 | */ |
| 151 | typedef struct __packed { |
| 152 | ncsi_header_t hdr; |
| 153 | uint16_t response_code; |
| 154 | uint16_t reason_code; |
| 155 | } ncsi_simple_response_t; |
| 156 | |
| 157 | /* |
| 158 | * Simple NCSI command packet. |
| 159 | */ |
| 160 | typedef struct { |
| 161 | ncsi_header_t hdr; |
| 162 | } ncsi_simple_command_t; |
| 163 | |
| 164 | /* |
| 165 | * Get Link Status Response. 8.4.24 |
| 166 | */ |
| 167 | typedef struct __packed { |
| 168 | uint32_t link_status; |
| 169 | uint32_t other_indications; |
| 170 | uint32_t oem_link_status; |
| 171 | } ncsi_link_status_t; |
| 172 | |
| 173 | typedef struct __packed { |
| 174 | ncsi_header_t hdr; |
| 175 | uint16_t response_code; |
| 176 | uint16_t reason_code; |
| 177 | ncsi_link_status_t link_status; |
| 178 | } ncsi_link_status_response_t; |
| 179 | |
| 180 | #define NCSI_LINK_STATUS_UP (1 << 0) |
| 181 | |
| 182 | /* |
| 183 | * Set MAC Address packet. 8.4.31 |
| 184 | */ |
| 185 | typedef struct __packed { |
| 186 | ncsi_header_t hdr; |
| 187 | mac_addr_t mac_addr; |
| 188 | uint8_t mac_addr_num; |
| 189 | uint8_t misc; |
| 190 | } ncsi_set_mac_command_t; |
| 191 | |
| 192 | /* |
| 193 | * Enable Broadcast Filter packet. 8.4.33 |
| 194 | */ |
| 195 | typedef struct __packed { |
| 196 | ncsi_header_t hdr; |
| 197 | uint32_t filter_settings; |
| 198 | } ncsi_enable_broadcast_filter_command_t; |
| 199 | |
| 200 | #define NCSI_BROADCAST_FILTER_MASK_ARP (1 << 0) |
| 201 | #define NCSI_BROADCAST_FILTER_MASK_DHCP_CLIENT (1 << 1) |
| 202 | #define NCSI_BROADCAST_FILTER_MASK_DHCP_SERVER (1 << 2) |
| 203 | #define NCSI_BROADCAST_FILTER_MASK_NETBIOS (1 << 3) |
| 204 | |
| 205 | /* |
| 206 | * Get Version ID Response. 8.4.44 |
| 207 | */ |
| 208 | typedef struct __packed { |
| 209 | struct { |
| 210 | uint8_t major; |
| 211 | uint8_t minor; |
| 212 | uint8_t update; |
| 213 | uint8_t alpha1; |
| 214 | uint8_t reserved[3]; |
| 215 | uint8_t alpha2; |
| 216 | } ncsi_version; |
| 217 | uint8_t firmware_name_string[12]; |
| 218 | uint32_t firmware_version; |
| 219 | uint16_t pci_did; |
| 220 | uint16_t pci_vid; |
| 221 | uint16_t pci_ssid; |
| 222 | uint16_t pci_svid; |
| 223 | uint32_t manufacturer_id; |
| 224 | } ncsi_version_id_t; |
| 225 | |
| 226 | typedef struct __packed { |
| 227 | ncsi_header_t hdr; |
| 228 | uint16_t response_code; |
| 229 | uint16_t reason_code; |
| 230 | ncsi_version_id_t version; |
| 231 | } ncsi_version_id_response_t; |
| 232 | |
| 233 | /* |
| 234 | * Get Capabilities Response 8.4.46 |
| 235 | */ |
| 236 | typedef struct __packed { |
| 237 | ncsi_header_t hdr; |
| 238 | uint16_t response_code; |
| 239 | uint16_t reason_code; |
| 240 | uint32_t capabilities_flags; |
| 241 | uint32_t broadcast_packet_filter_capabilties; |
| 242 | uint32_t multicast_packet_filter_capabilties; |
| 243 | uint32_t buffering_capability; |
| 244 | uint32_t aen_control_support; |
| 245 | uint8_t vlan_filter_count; |
| 246 | uint8_t mixed_filter_count; |
| 247 | uint8_t multicast_filter_count; |
| 248 | uint8_t unicast_filter_count; |
| 249 | uint16_t reserved; |
| 250 | uint8_t vlan_mode_support; |
| 251 | uint8_t channel_count; |
| 252 | } ncsi_capabilities_response_t; |
| 253 | |
| 254 | /* |
| 255 | * Get Parameters Response 8.4.48 |
| 256 | */ |
| 257 | typedef struct __packed { |
| 258 | ncsi_header_t hdr; |
| 259 | uint16_t response_code; |
| 260 | uint16_t reason_code; |
| 261 | // TODO: Note: Mellanox 1.4 FW has mac count swapped with mac flags. |
| 262 | uint8_t mac_address_count; |
| 263 | uint16_t reserved_01; |
| 264 | uint8_t mac_address_flags; |
| 265 | uint8_t vlan_tag_count; |
| 266 | uint8_t reserved_02; |
| 267 | uint16_t vlan_tag_flags; |
| 268 | uint32_t link_settings; |
| 269 | uint32_t broadcast_settings; |
| 270 | uint32_t configuration_flags; |
| 271 | uint8_t vlan_mode; |
| 272 | uint8_t flow_control_enable; |
| 273 | uint16_t reserved_03; |
| 274 | uint32_t aen_control; |
| 275 | mac_addr_t mac_address[2]; |
| 276 | // TODO: Variable number of mac address filters (max 8. See 8.4.48) |
| 277 | uint16_t vlan_tags[2]; |
| 278 | // TODO: Variable of vlan filters (up to 15 based on 8.4.48) |
| 279 | } ncsi_parameters_response_t; |
| 280 | |
| 281 | /* |
| 282 | * Get Passthrough statistics response. 8.4.54 |
| 283 | * |
| 284 | * The legacy data structure matches MLX implementation up to vX |
| 285 | * (Google vX), however the standard requires the first field to be |
| 286 | * 64bits and MLX fixed it in vX (Google vX). |
| 287 | * |
| 288 | */ |
| 289 | typedef struct __packed { |
| 290 | uint32_t tx_packets_received; // EC -> NIC |
| 291 | uint32_t tx_packets_dropped; |
| 292 | uint32_t tx_channel_errors; |
| 293 | uint32_t tx_undersized_errors; |
| 294 | uint32_t tx_oversized_errors; |
| 295 | uint32_t rx_packets_received; // Network -> NIC |
| 296 | uint32_t rx_packets_dropped; |
| 297 | uint32_t rx_channel_errors; |
| 298 | uint32_t rx_undersized_errors; |
| 299 | uint32_t rx_oversized_errors; |
| 300 | } ncsi_passthrough_stats_legacy_t; |
| 301 | |
| 302 | typedef struct __packed { |
| 303 | uint32_t tx_packets_received_hi; // EC -> NIC (higher 32bit) |
| 304 | uint32_t tx_packets_received_lo; // EC -> NIC (lower 32bit) |
| 305 | uint32_t tx_packets_dropped; |
| 306 | uint32_t tx_channel_errors; |
| 307 | uint32_t tx_undersized_errors; |
| 308 | uint32_t tx_oversized_errors; |
| 309 | uint32_t rx_packets_received; // Network -> NIC |
| 310 | uint32_t rx_packets_dropped; |
| 311 | uint32_t rx_channel_errors; |
| 312 | uint32_t rx_undersized_errors; |
| 313 | uint32_t rx_oversized_errors; |
| 314 | } ncsi_passthrough_stats_t; |
| 315 | |
| 316 | typedef struct __packed { |
| 317 | ncsi_header_t hdr; |
| 318 | uint16_t response_code; |
| 319 | uint16_t reason_code; |
| 320 | ncsi_passthrough_stats_legacy_t stats; |
| 321 | } ncsi_passthrough_stats_legacy_response_t; |
| 322 | |
| 323 | typedef struct __packed { |
| 324 | ncsi_header_t hdr; |
| 325 | uint16_t response_code; |
| 326 | uint16_t reason_code; |
| 327 | ncsi_passthrough_stats_t stats; |
| 328 | } ncsi_passthrough_stats_response_t; |
| 329 | |
| 330 | /* |
| 331 | * OEM extension header for custom commands. |
| 332 | */ |
| 333 | typedef struct __packed { |
| 334 | uint32_t manufacturer_id; |
| 335 | uint8_t reserved[3]; |
| 336 | uint8_t oem_cmd; |
| 337 | } ncsi_oem_extension_header_t; |
| 338 | |
| 339 | /* |
| 340 | * Response format for simple OEM command. |
| 341 | */ |
| 342 | typedef struct __packed { |
| 343 | ncsi_header_t hdr; |
| 344 | uint16_t response_code; |
| 345 | uint16_t reason_code; |
| 346 | ncsi_oem_extension_header_t oem_header; |
| 347 | } ncsi_oem_simple_response_t; |
| 348 | |
| 349 | /* |
| 350 | * Response format for OEM get MAC command. |
| 351 | */ |
| 352 | typedef struct __packed { |
| 353 | ncsi_header_t hdr; |
| 354 | uint16_t response_code; |
| 355 | uint16_t reason_code; |
| 356 | ncsi_oem_extension_header_t oem_header; |
| 357 | uint16_t reserved0; |
| 358 | uint8_t mac[6]; |
| 359 | } ncsi_host_mac_response_t; |
| 360 | |
| 361 | /* |
| 362 | * Format for OEM filter. |
| 363 | */ |
| 364 | typedef struct __packed { |
| 365 | uint16_t reserved0; |
| 366 | uint8_t mac[6]; |
| 367 | // If ip is set to zero, the filter will match any IP address, including any |
| 368 | // IPv6 address. |
| 369 | uint32_t ip; // Network order |
| 370 | uint16_t port; // Network order |
| 371 | uint8_t reserved1; |
| 372 | uint8_t flags; |
| 373 | uint8_t regid[8]; |
| 374 | } ncsi_oem_filter_t; |
| 375 | |
| 376 | // Set flags |
| 377 | #define NCSI_OEM_FILTER_FLAGS_ENABLE (0x01) |
| 378 | |
| 379 | // Get flags |
| 380 | #define NCSI_OEM_FILTER_FLAGS_ENABLED (0x01) |
| 381 | #define NCSI_OEM_FILTER_FLAGS_REGISTERED (0x02) |
| 382 | #define NCSI_OEM_FILTER_FLAGS_HOSTLESS (0x04) |
| 383 | |
| 384 | /* |
| 385 | * Command format for simple OEM command. |
| 386 | */ |
| 387 | typedef struct __packed { |
| 388 | ncsi_header_t hdr; |
| 389 | ncsi_oem_extension_header_t oem_header; |
| 390 | } ncsi_oem_simple_cmd_t; |
| 391 | |
| 392 | /* |
| 393 | * Response format for OEM get filter command. |
| 394 | */ |
| 395 | typedef struct __packed { |
| 396 | ncsi_header_t hdr; |
| 397 | uint16_t response_code; |
| 398 | uint16_t reason_code; |
| 399 | ncsi_oem_extension_header_t oem_header; |
| 400 | ncsi_oem_filter_t filter; |
| 401 | } ncsi_oem_get_filter_response_t; |
| 402 | |
| 403 | /* |
| 404 | * Command format for OEM set filter command. |
| 405 | */ |
| 406 | typedef struct __packed { |
| 407 | ncsi_header_t hdr; |
| 408 | ncsi_oem_extension_header_t oem_header; |
| 409 | ncsi_oem_filter_t filter; |
| 410 | } ncsi_oem_set_filter_cmd_t; |
| 411 | |
| 412 | /* |
| 413 | * Command format for OEM echo command. |
| 414 | */ |
| 415 | typedef struct __packed { |
| 416 | ncsi_header_t hdr; |
| 417 | ncsi_oem_extension_header_t oem_header; |
| 418 | uint8_t pattern[NCSI_OEM_ECHO_PATTERN_SIZE]; |
| 419 | } ncsi_oem_echo_cmd_t; |
| 420 | |
| 421 | /* |
| 422 | * Response format for OEM echo command. |
| 423 | */ |
| 424 | typedef struct __packed { |
| 425 | ncsi_header_t hdr; |
| 426 | uint16_t response_code; |
| 427 | uint16_t reason_code; |
| 428 | ncsi_oem_extension_header_t oem_header; |
| 429 | uint8_t pattern[NCSI_OEM_ECHO_PATTERN_SIZE]; |
| 430 | } ncsi_oem_echo_response_t; |
| 431 | |
| 432 | #ifdef __cplusplus |
| 433 | } /* extern "C" */ |
| 434 | #endif |
| 435 | |
| 436 | #endif // PLATFORMS_NEMORA_PORTABLE_NCSI_H_ |