Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 | /* SPDX-License-Identifier: GPL-2.0-only */ /**************************************************************************** * Driver for Solarflare network controllers and boards * Copyright 2008-2013 Solarflare Communications Inc. */ #ifndef EFX_MCDI_H #define EFX_MCDI_H /** * enum efx_mcdi_state - MCDI request handling state * @MCDI_STATE_QUIESCENT: No pending MCDI requests. If the caller holds the * mcdi @iface_lock then they are able to move to %MCDI_STATE_RUNNING * @MCDI_STATE_RUNNING_SYNC: There is a synchronous MCDI request pending. * Only the thread that moved into this state is allowed to move out of it. * @MCDI_STATE_RUNNING_ASYNC: There is an asynchronous MCDI request pending. * @MCDI_STATE_PROXY_WAIT: An MCDI request has completed with a response that * indicates we must wait for a proxy try again message. * @MCDI_STATE_COMPLETED: An MCDI request has completed, but the owning thread * has not yet consumed the result. For all other threads, equivalent to * %MCDI_STATE_RUNNING. */ enum efx_mcdi_state { MCDI_STATE_QUIESCENT, MCDI_STATE_RUNNING_SYNC, MCDI_STATE_RUNNING_ASYNC, MCDI_STATE_PROXY_WAIT, MCDI_STATE_COMPLETED, }; /** * enum efx_mcdi_mode - MCDI transaction mode * @MCDI_MODE_POLL: poll for MCDI completion, until timeout * @MCDI_MODE_EVENTS: wait for an mcdi_event. On timeout, poll once * @MCDI_MODE_FAIL: we think MCDI is dead, so fail-fast all calls */ enum efx_mcdi_mode { MCDI_MODE_POLL, MCDI_MODE_EVENTS, MCDI_MODE_FAIL, }; /** * struct efx_mcdi_iface - MCDI protocol context * @efx: The associated NIC. * @state: Request handling state. Waited for by @wq. * @mode: Poll for mcdi completion, or wait for an mcdi_event. * @wq: Wait queue for threads waiting for @state != %MCDI_STATE_RUNNING * @new_epoch: Indicates start of day or start of MC reboot recovery * @iface_lock: Serialises access to @seqno, @credits and response metadata * @seqno: The next sequence number to use for mcdi requests. * @credits: Number of spurious MCDI completion events allowed before we * trigger a fatal error * @resprc: Response error/success code (Linux numbering) * @resp_hdr_len: Response header length * @resp_data_len: Response data (SDU or error) length * @async_lock: Serialises access to @async_list while event processing is * enabled * @async_list: Queue of asynchronous requests * @async_timer: Timer for asynchronous request timeout * @logging_buffer: buffer that may be used to build MCDI tracing messages * @logging_enabled: whether to trace MCDI * @proxy_rx_handle: Most recently received proxy authorisation handle * @proxy_rx_status: Status of most recent proxy authorisation * @proxy_rx_wq: Wait queue for updates to proxy_rx_handle */ struct efx_mcdi_iface { struct efx_nic *efx; enum efx_mcdi_state state; enum efx_mcdi_mode mode; wait_queue_head_t wq; spinlock_t iface_lock; bool new_epoch; unsigned int credits; unsigned int seqno; int resprc; int resprc_raw; size_t resp_hdr_len; size_t resp_data_len; spinlock_t async_lock; struct list_head async_list; struct timer_list async_timer; #ifdef CONFIG_SFC_SIENA_MCDI_LOGGING char *logging_buffer; bool logging_enabled; #endif unsigned int proxy_rx_handle; int proxy_rx_status; wait_queue_head_t proxy_rx_wq; }; struct efx_mcdi_mon { struct efx_buffer dma_buf; struct mutex update_lock; unsigned long last_update; struct device *device; struct efx_mcdi_mon_attribute *attrs; struct attribute_group group; const struct attribute_group *groups[2]; unsigned int n_attrs; }; struct efx_mcdi_mtd_partition { struct efx_mtd_partition common; bool updating; u16 nvram_type; u16 fw_subtype; }; #define to_efx_mcdi_mtd_partition(mtd) \ container_of(mtd, struct efx_mcdi_mtd_partition, common.mtd) /** * struct efx_mcdi_data - extra state for NICs that implement MCDI * @iface: Interface/protocol state * @hwmon: Hardware monitor state * @fn_flags: Flags for this function, as returned by %MC_CMD_DRV_ATTACH. */ struct efx_mcdi_data { struct efx_mcdi_iface iface; #ifdef CONFIG_SFC_SIENA_MCDI_MON struct efx_mcdi_mon hwmon; #endif u32 fn_flags; }; static inline struct efx_mcdi_iface *efx_mcdi(struct efx_nic *efx) { EFX_WARN_ON_PARANOID(!efx->mcdi); return &efx->mcdi->iface; } #ifdef CONFIG_SFC_SIENA_MCDI_MON static inline struct efx_mcdi_mon *efx_mcdi_mon(struct efx_nic *efx) { EFX_WARN_ON_PARANOID(!efx->mcdi); return &efx->mcdi->hwmon; } #endif int efx_siena_mcdi_init(struct efx_nic *efx); void efx_siena_mcdi_detach(struct efx_nic *efx); void efx_siena_mcdi_fini(struct efx_nic *efx); int efx_siena_mcdi_rpc(struct efx_nic *efx, unsigned int cmd, const efx_dword_t *inbuf, size_t inlen, efx_dword_t *outbuf, size_t outlen, size_t *outlen_actual); int efx_siena_mcdi_rpc_quiet(struct efx_nic *efx, unsigned int cmd, const efx_dword_t *inbuf, size_t inlen, efx_dword_t *outbuf, size_t outlen, size_t *outlen_actual); int efx_siena_mcdi_rpc_start(struct efx_nic *efx, unsigned int cmd, const efx_dword_t *inbuf, size_t inlen); int efx_siena_mcdi_rpc_finish(struct efx_nic *efx, unsigned int cmd, size_t inlen, efx_dword_t *outbuf, size_t outlen, size_t *outlen_actual); int efx_siena_mcdi_rpc_finish_quiet(struct efx_nic *efx, unsigned int cmd, size_t inlen, efx_dword_t *outbuf, size_t outlen, size_t *outlen_actual); typedef void efx_mcdi_async_completer(struct efx_nic *efx, unsigned long cookie, int rc, efx_dword_t *outbuf, size_t outlen_actual); int efx_siena_mcdi_rpc_async(struct efx_nic *efx, unsigned int cmd, const efx_dword_t *inbuf, size_t inlen, size_t outlen, efx_mcdi_async_completer *complete, unsigned long cookie); int efx_siena_mcdi_rpc_async_quiet(struct efx_nic *efx, unsigned int cmd, const efx_dword_t *inbuf, size_t inlen, size_t outlen, efx_mcdi_async_completer *complete, unsigned long cookie); void efx_siena_mcdi_display_error(struct efx_nic *efx, unsigned int cmd, size_t inlen, efx_dword_t *outbuf, size_t outlen, int rc); int efx_siena_mcdi_poll_reboot(struct efx_nic *efx); void efx_siena_mcdi_mode_poll(struct efx_nic *efx); void efx_siena_mcdi_mode_event(struct efx_nic *efx); void efx_siena_mcdi_flush_async(struct efx_nic *efx); void efx_siena_mcdi_process_event(struct efx_channel *channel, efx_qword_t *event); void efx_siena_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev); /* We expect that 16- and 32-bit fields in MCDI requests and responses * are appropriately aligned, but 64-bit fields are only * 32-bit-aligned. Also, on Siena we must copy to the MC shared * memory strictly 32 bits at a time, so add any necessary padding. */ #define MCDI_TX_BUF_LEN(_len) DIV_ROUND_UP((_len), 4) #define _MCDI_DECLARE_BUF(_name, _len) \ efx_dword_t _name[DIV_ROUND_UP(_len, 4)] #define MCDI_DECLARE_BUF(_name, _len) \ _MCDI_DECLARE_BUF(_name, _len) = {{{0}}} #define MCDI_DECLARE_BUF_ERR(_name) \ MCDI_DECLARE_BUF(_name, 8) #define _MCDI_PTR(_buf, _offset) \ ((u8 *)(_buf) + (_offset)) #define MCDI_PTR(_buf, _field) \ _MCDI_PTR(_buf, MC_CMD_ ## _field ## _OFST) #define _MCDI_CHECK_ALIGN(_ofst, _align) \ ((_ofst) + BUILD_BUG_ON_ZERO((_ofst) & (_align - 1))) #define _MCDI_DWORD(_buf, _field) \ ((_buf) + (_MCDI_CHECK_ALIGN(MC_CMD_ ## _field ## _OFST, 4) >> 2)) #define MCDI_BYTE(_buf, _field) \ ((void)BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 1), \ *MCDI_PTR(_buf, _field)) #define MCDI_WORD(_buf, _field) \ ((u16)BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 2) + \ le16_to_cpu(*(__force const __le16 *)MCDI_PTR(_buf, _field))) #define MCDI_SET_DWORD(_buf, _field, _value) \ EFX_POPULATE_DWORD_1(*_MCDI_DWORD(_buf, _field), EFX_DWORD_0, _value) #define MCDI_DWORD(_buf, _field) \ EFX_DWORD_FIELD(*_MCDI_DWORD(_buf, _field), EFX_DWORD_0) #define MCDI_POPULATE_DWORD_1(_buf, _field, _name1, _value1) \ EFX_POPULATE_DWORD_1(*_MCDI_DWORD(_buf, _field), \ MC_CMD_ ## _name1, _value1) #define MCDI_POPULATE_DWORD_2(_buf, _field, _name1, _value1, \ _name2, _value2) \ EFX_POPULATE_DWORD_2(*_MCDI_DWORD(_buf, _field), \ MC_CMD_ ## _name1, _value1, \ MC_CMD_ ## _name2, _value2) #define MCDI_POPULATE_DWORD_3(_buf, _field, _name1, _value1, \ _name2, _value2, _name3, _value3) \ EFX_POPULATE_DWORD_3(*_MCDI_DWORD(_buf, _field), \ MC_CMD_ ## _name1, _value1, \ MC_CMD_ ## _name2, _value2, \ MC_CMD_ ## _name3, _value3) #define MCDI_POPULATE_DWORD_4(_buf, _field, _name1, _value1, \ _name2, _value2, _name3, _value3, \ _name4, _value4) \ EFX_POPULATE_DWORD_4(*_MCDI_DWORD(_buf, _field), \ MC_CMD_ ## _name1, _value1, \ MC_CMD_ ## _name2, _value2, \ MC_CMD_ ## _name3, _value3, \ MC_CMD_ ## _name4, _value4) #define MCDI_POPULATE_DWORD_5(_buf, _field, _name1, _value1, \ _name2, _value2, _name3, _value3, \ _name4, _value4, _name5, _value5) \ EFX_POPULATE_DWORD_5(*_MCDI_DWORD(_buf, _field), \ MC_CMD_ ## _name1, _value1, \ MC_CMD_ ## _name2, _value2, \ MC_CMD_ ## _name3, _value3, \ MC_CMD_ ## _name4, _value4, \ MC_CMD_ ## _name5, _value5) #define MCDI_POPULATE_DWORD_6(_buf, _field, _name1, _value1, \ _name2, _value2, _name3, _value3, \ _name4, _value4, _name5, _value5, \ _name6, _value6) \ EFX_POPULATE_DWORD_6(*_MCDI_DWORD(_buf, _field), \ MC_CMD_ ## _name1, _value1, \ MC_CMD_ ## _name2, _value2, \ MC_CMD_ ## _name3, _value3, \ MC_CMD_ ## _name4, _value4, \ MC_CMD_ ## _name5, _value5, \ MC_CMD_ ## _name6, _value6) #define MCDI_POPULATE_DWORD_7(_buf, _field, _name1, _value1, \ _name2, _value2, _name3, _value3, \ _name4, _value4, _name5, _value5, \ _name6, _value6, _name7, _value7) \ EFX_POPULATE_DWORD_7(*_MCDI_DWORD(_buf, _field), \ MC_CMD_ ## _name1, _value1, \ MC_CMD_ ## _name2, _value2, \ MC_CMD_ ## _name3, _value3, \ MC_CMD_ ## _name4, _value4, \ MC_CMD_ ## _name5, _value5, \ MC_CMD_ ## _name6, _value6, \ MC_CMD_ ## _name7, _value7) #define MCDI_SET_QWORD(_buf, _field, _value) \ do { \ EFX_POPULATE_DWORD_1(_MCDI_DWORD(_buf, _field)[0], \ EFX_DWORD_0, (u32)(_value)); \ EFX_POPULATE_DWORD_1(_MCDI_DWORD(_buf, _field)[1], \ EFX_DWORD_0, (u64)(_value) >> 32); \ } while (0) #define MCDI_QWORD(_buf, _field) \ (EFX_DWORD_FIELD(_MCDI_DWORD(_buf, _field)[0], EFX_DWORD_0) | \ (u64)EFX_DWORD_FIELD(_MCDI_DWORD(_buf, _field)[1], EFX_DWORD_0) << 32) #define MCDI_FIELD(_ptr, _type, _field) \ EFX_EXTRACT_DWORD( \ *(efx_dword_t *) \ _MCDI_PTR(_ptr, MC_CMD_ ## _type ## _ ## _field ## _OFST & ~3),\ MC_CMD_ ## _type ## _ ## _field ## _LBN & 0x1f, \ (MC_CMD_ ## _type ## _ ## _field ## _LBN & 0x1f) + \ MC_CMD_ ## _type ## _ ## _field ## _WIDTH - 1) #define _MCDI_ARRAY_PTR(_buf, _field, _index, _align) \ (_MCDI_PTR(_buf, _MCDI_CHECK_ALIGN(MC_CMD_ ## _field ## _OFST, _align))\ + (_index) * _MCDI_CHECK_ALIGN(MC_CMD_ ## _field ## _LEN, _align)) #define MCDI_DECLARE_STRUCT_PTR(_name) \ efx_dword_t *_name #define MCDI_ARRAY_STRUCT_PTR(_buf, _field, _index) \ ((efx_dword_t *)_MCDI_ARRAY_PTR(_buf, _field, _index, 4)) #define MCDI_VAR_ARRAY_LEN(_len, _field) \ min_t(size_t, MC_CMD_ ## _field ## _MAXNUM, \ ((_len) - MC_CMD_ ## _field ## _OFST) / MC_CMD_ ## _field ## _LEN) #define MCDI_ARRAY_WORD(_buf, _field, _index) \ (BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 2) + \ le16_to_cpu(*(__force const __le16 *) \ _MCDI_ARRAY_PTR(_buf, _field, _index, 2))) #define _MCDI_ARRAY_DWORD(_buf, _field, _index) \ (BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 4) + \ (efx_dword_t *)_MCDI_ARRAY_PTR(_buf, _field, _index, 4)) #define MCDI_SET_ARRAY_DWORD(_buf, _field, _index, _value) \ EFX_SET_DWORD_FIELD(*_MCDI_ARRAY_DWORD(_buf, _field, _index), \ EFX_DWORD_0, _value) #define MCDI_ARRAY_DWORD(_buf, _field, _index) \ EFX_DWORD_FIELD(*_MCDI_ARRAY_DWORD(_buf, _field, _index), EFX_DWORD_0) #define _MCDI_ARRAY_QWORD(_buf, _field, _index) \ (BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 8) + \ (efx_dword_t *)_MCDI_ARRAY_PTR(_buf, _field, _index, 4)) #define MCDI_SET_ARRAY_QWORD(_buf, _field, _index, _value) \ do { \ EFX_SET_DWORD_FIELD(_MCDI_ARRAY_QWORD(_buf, _field, _index)[0],\ EFX_DWORD_0, (u32)(_value)); \ EFX_SET_DWORD_FIELD(_MCDI_ARRAY_QWORD(_buf, _field, _index)[1],\ EFX_DWORD_0, (u64)(_value) >> 32); \ } while (0) #define MCDI_ARRAY_FIELD(_buf, _field1, _type, _index, _field2) \ MCDI_FIELD(MCDI_ARRAY_STRUCT_PTR(_buf, _field1, _index), \ _type ## _TYPEDEF, _field2) #define MCDI_EVENT_FIELD(_ev, _field) \ EFX_QWORD_FIELD(_ev, MCDI_EVENT_ ## _field) #define MCDI_CAPABILITY(field) \ MC_CMD_GET_CAPABILITIES_V8_OUT_ ## field ## _LBN #define MCDI_CAPABILITY_OFST(field) \ MC_CMD_GET_CAPABILITIES_V8_OUT_ ## field ## _OFST #define efx_has_cap(efx, field) \ efx->type->check_caps(efx, \ MCDI_CAPABILITY(field), \ MCDI_CAPABILITY_OFST(field)) void efx_siena_mcdi_print_fwver(struct efx_nic *efx, char *buf, size_t len); int efx_siena_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address, u16 *fw_subtype_list, u32 *capabilities); int efx_siena_mcdi_log_ctrl(struct efx_nic *efx, bool evq, bool uart, u32 dest_evq); int efx_siena_mcdi_nvram_types(struct efx_nic *efx, u32 *nvram_types_out); int efx_siena_mcdi_nvram_info(struct efx_nic *efx, unsigned int type, size_t *size_out, size_t *erase_size_out, bool *protected_out); int efx_siena_mcdi_nvram_test_all(struct efx_nic *efx); int efx_siena_mcdi_handle_assertion(struct efx_nic *efx); int efx_siena_mcdi_set_id_led(struct efx_nic *efx, enum efx_led_mode mode); int efx_siena_mcdi_wol_filter_set_magic(struct efx_nic *efx, const u8 *mac, int *id_out); int efx_siena_mcdi_wol_filter_get_magic(struct efx_nic *efx, int *id_out); int efx_siena_mcdi_wol_filter_remove(struct efx_nic *efx, int id); int efx_siena_mcdi_wol_filter_reset(struct efx_nic *efx); int efx_siena_mcdi_flush_rxqs(struct efx_nic *efx); void efx_siena_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev); void efx_siena_mcdi_mac_start_stats(struct efx_nic *efx); void efx_siena_mcdi_mac_stop_stats(struct efx_nic *efx); void efx_siena_mcdi_mac_pull_stats(struct efx_nic *efx); enum reset_type efx_siena_mcdi_map_reset_reason(enum reset_type reason); int efx_siena_mcdi_reset(struct efx_nic *efx, enum reset_type method); #ifdef CONFIG_SFC_SIENA_MCDI_MON int efx_siena_mcdi_mon_probe(struct efx_nic *efx); void efx_siena_mcdi_mon_remove(struct efx_nic *efx); #else static inline int efx_siena_mcdi_mon_probe(struct efx_nic *efx) { return 0; } static inline void efx_siena_mcdi_mon_remove(struct efx_nic *efx) {} #endif #ifdef CONFIG_SFC_SIENA_MTD int efx_siena_mcdi_mtd_read(struct mtd_info *mtd, loff_t start, size_t len, size_t *retlen, u8 *buffer); int efx_siena_mcdi_mtd_erase(struct mtd_info *mtd, loff_t start, size_t len); int efx_siena_mcdi_mtd_write(struct mtd_info *mtd, loff_t start, size_t len, size_t *retlen, const u8 *buffer); int efx_siena_mcdi_mtd_sync(struct mtd_info *mtd); void efx_siena_mcdi_mtd_rename(struct efx_mtd_partition *part); #endif #endif /* EFX_MCDI_H */ |