1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2010-2016 Solarflare Communications Inc. 5 * All rights reserved. 6 * 7 * This software was developed in part by Philip Paeps under contract for 8 * Solarflare Communications, Inc. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright notice, 14 * this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright notice, 16 * this list of conditions and the following disclaimer in the documentation 17 * and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 29 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 * The views and conclusions contained in the software and documentation are 32 * those of the authors and should not be interpreted as representing official 33 * policies, either expressed or implied, of the FreeBSD Project. 34 * 35 * $FreeBSD$ 36 */ 37 38 #ifndef _SFXGE_H 39 #define _SFXGE_H 40 41 #include <sys/param.h> 42 #include <sys/kernel.h> 43 #include <sys/socket.h> 44 #include <sys/sysctl.h> 45 #include <sys/sx.h> 46 #include <vm/uma.h> 47 48 #include <net/ethernet.h> 49 #include <net/if.h> 50 #include <net/if_var.h> 51 #include <net/if_media.h> 52 #include <net/if_types.h> 53 54 #include "sfxge_ioc.h" 55 56 /* 57 * Debugging 58 */ 59 #if 0 60 #define DBGPRINT(dev, fmt, args...) \ 61 device_printf(dev, "%s: " fmt "\n", __func__, ## args) 62 #else 63 #define DBGPRINT(dev, fmt, args...) 64 #endif 65 66 /* 67 * Backward-compatibility 68 */ 69 #ifndef CACHE_LINE_SIZE 70 /* This should be right on most machines the driver will be used on, and 71 * we needn't care too much about wasting a few KB per interface. 72 */ 73 #define CACHE_LINE_SIZE 128 74 #endif 75 76 #ifndef IFCAP_LINKSTATE 77 #define IFCAP_LINKSTATE 0 78 #endif 79 80 #ifndef IFCAP_VLAN_HWTSO 81 #define IFCAP_VLAN_HWTSO 0 82 #endif 83 84 #ifndef IFM_10G_T 85 #define IFM_10G_T IFM_UNKNOWN 86 #endif 87 88 #ifndef IFM_10G_KX4 89 #define IFM_10G_KX4 IFM_10G_CX4 90 #endif 91 92 #ifndef IFM_40G_CR4 93 #define IFM_40G_CR4 IFM_UNKNOWN 94 #endif 95 96 #ifdef IFM_ETH_RXPAUSE 97 #define SFXGE_HAVE_PAUSE_MEDIAOPTS 98 #endif 99 100 #ifndef CTLTYPE_U64 101 #define CTLTYPE_U64 CTLTYPE_QUAD 102 #endif 103 104 #include "sfxge_rx.h" 105 #include "sfxge_tx.h" 106 107 #define ROUNDUP_POW_OF_TWO(_n) (1ULL << flsl((_n) - 1)) 108 109 #define SFXGE_IP_ALIGN 2 110 111 #define SFXGE_ETHERTYPE_LOOPBACK 0x9000 /* Xerox loopback */ 112 113 #define SFXGE_MAGIC_RESERVED 0x8000 114 115 #define SFXGE_MAGIC_DMAQ_LABEL_WIDTH 6 116 #define SFXGE_MAGIC_DMAQ_LABEL_MASK \ 117 ((1 << SFXGE_MAGIC_DMAQ_LABEL_WIDTH) - 1) 118 119 enum sfxge_sw_ev { 120 SFXGE_SW_EV_RX_QFLUSH_DONE = 1, 121 SFXGE_SW_EV_RX_QFLUSH_FAILED, 122 SFXGE_SW_EV_RX_QREFILL, 123 SFXGE_SW_EV_TX_QFLUSH_DONE, 124 }; 125 126 #define SFXGE_SW_EV_MAGIC(_sw_ev) \ 127 (SFXGE_MAGIC_RESERVED | ((_sw_ev) << SFXGE_MAGIC_DMAQ_LABEL_WIDTH)) 128 129 static inline uint16_t 130 sfxge_sw_ev_mk_magic(enum sfxge_sw_ev sw_ev, unsigned int label) 131 { 132 KASSERT((label & SFXGE_MAGIC_DMAQ_LABEL_MASK) == label, 133 ("(label & SFXGE_MAGIC_DMAQ_LABEL_MASK) != label")); 134 return SFXGE_SW_EV_MAGIC(sw_ev) | label; 135 } 136 137 static inline uint16_t 138 sfxge_sw_ev_rxq_magic(enum sfxge_sw_ev sw_ev, struct sfxge_rxq *rxq) 139 { 140 return sfxge_sw_ev_mk_magic(sw_ev, 0); 141 } 142 143 static inline uint16_t 144 sfxge_sw_ev_txq_magic(enum sfxge_sw_ev sw_ev, struct sfxge_txq *txq) 145 { 146 return sfxge_sw_ev_mk_magic(sw_ev, txq->type); 147 } 148 149 enum sfxge_evq_state { 150 SFXGE_EVQ_UNINITIALIZED = 0, 151 SFXGE_EVQ_INITIALIZED, 152 SFXGE_EVQ_STARTING, 153 SFXGE_EVQ_STARTED 154 }; 155 156 #define SFXGE_EV_BATCH 16384 157 158 #define SFXGE_STATS_UPDATE_PERIOD_MS 1000 159 160 struct sfxge_evq { 161 /* Structure members below are sorted by usage order */ 162 struct sfxge_softc *sc; 163 struct mtx lock; 164 unsigned int index; 165 enum sfxge_evq_state init_state; 166 efsys_mem_t mem; 167 efx_evq_t *common; 168 unsigned int read_ptr; 169 boolean_t exception; 170 unsigned int rx_done; 171 unsigned int tx_done; 172 173 /* Linked list of TX queues with completions to process */ 174 struct sfxge_txq *txq; 175 struct sfxge_txq **txqs; 176 177 /* Structure members not used on event processing path */ 178 unsigned int buf_base_id; 179 unsigned int entries; 180 char lock_name[SFXGE_LOCK_NAME_MAX]; 181 #if EFSYS_OPT_QSTATS 182 clock_t stats_update_time; 183 uint64_t stats[EV_NQSTATS]; 184 #endif 185 } __aligned(CACHE_LINE_SIZE); 186 187 #define SFXGE_NDESCS 1024 188 #define SFXGE_MODERATION 30 189 190 enum sfxge_intr_state { 191 SFXGE_INTR_UNINITIALIZED = 0, 192 SFXGE_INTR_INITIALIZED, 193 SFXGE_INTR_TESTING, 194 SFXGE_INTR_STARTED 195 }; 196 197 struct sfxge_intr_hdl { 198 int eih_rid; 199 void *eih_tag; 200 struct resource *eih_res; 201 }; 202 203 struct sfxge_intr { 204 enum sfxge_intr_state state; 205 struct resource *msix_res; 206 struct sfxge_intr_hdl *table; 207 int n_alloc; 208 int type; 209 efsys_mem_t status; 210 uint32_t zero_count; 211 }; 212 213 enum sfxge_mcdi_state { 214 SFXGE_MCDI_UNINITIALIZED = 0, 215 SFXGE_MCDI_INITIALIZED, 216 SFXGE_MCDI_BUSY, 217 SFXGE_MCDI_COMPLETED 218 }; 219 220 struct sfxge_mcdi { 221 struct mtx lock; 222 efsys_mem_t mem; 223 enum sfxge_mcdi_state state; 224 efx_mcdi_transport_t transport; 225 226 /* Only used in debugging output */ 227 char lock_name[SFXGE_LOCK_NAME_MAX]; 228 }; 229 230 struct sfxge_hw_stats { 231 clock_t update_time; 232 efsys_mem_t dma_buf; 233 void *decode_buf; 234 }; 235 236 enum sfxge_port_state { 237 SFXGE_PORT_UNINITIALIZED = 0, 238 SFXGE_PORT_INITIALIZED, 239 SFXGE_PORT_STARTED 240 }; 241 242 struct sfxge_port { 243 struct sfxge_softc *sc; 244 struct mtx lock; 245 enum sfxge_port_state init_state; 246 #ifndef SFXGE_HAVE_PAUSE_MEDIAOPTS 247 unsigned int wanted_fc; 248 #endif 249 struct sfxge_hw_stats phy_stats; 250 struct sfxge_hw_stats mac_stats; 251 uint16_t stats_update_period_ms; 252 efx_link_mode_t link_mode; 253 uint8_t mcast_addrs[EFX_MAC_MULTICAST_LIST_MAX * 254 EFX_MAC_ADDR_LEN]; 255 unsigned int mcast_count; 256 257 /* Only used in debugging output */ 258 char lock_name[SFXGE_LOCK_NAME_MAX]; 259 }; 260 261 enum sfxge_softc_state { 262 SFXGE_UNINITIALIZED = 0, 263 SFXGE_INITIALIZED, 264 SFXGE_REGISTERED, 265 SFXGE_STARTED 266 }; 267 268 struct sfxge_softc { 269 device_t dev; 270 struct sx softc_lock; 271 char softc_lock_name[SFXGE_LOCK_NAME_MAX]; 272 enum sfxge_softc_state init_state; 273 if_t ifnet; 274 unsigned int if_flags; 275 struct sysctl_oid *stats_node; 276 #if EFSYS_OPT_QSTATS 277 struct sysctl_oid *evqs_stats_node; 278 #endif 279 struct sysctl_oid *txqs_node; 280 281 struct task task_reset; 282 283 efx_family_t family; 284 unsigned int mem_bar; 285 286 caddr_t vpd_data; 287 size_t vpd_size; 288 efx_nic_t *enp; 289 efsys_lock_t enp_lock; 290 291 boolean_t txq_dynamic_cksum_toggle_supported; 292 293 unsigned int rxq_entries; 294 unsigned int txq_entries; 295 296 bus_dma_tag_t parent_dma_tag; 297 efsys_bar_t bar; 298 299 struct sfxge_intr intr; 300 struct sfxge_mcdi mcdi; 301 struct sfxge_port port; 302 uint32_t buffer_table_next; 303 304 struct sfxge_evq *evq[SFXGE_RX_SCALE_MAX]; 305 unsigned int ev_moderation; 306 #if EFSYS_OPT_QSTATS 307 clock_t ev_stats_update_time; 308 uint64_t ev_stats[EV_NQSTATS]; 309 #endif 310 311 unsigned int max_rss_channels; 312 struct sfxge_rxq *rxq[SFXGE_RX_SCALE_MAX]; 313 unsigned int rx_indir_table[EFX_RSS_TBL_SIZE]; 314 315 struct sfxge_txq *txq[SFXGE_TXQ_NTYPES + SFXGE_RX_SCALE_MAX]; 316 317 struct ifmedia media; 318 319 size_t rx_prefix_size; 320 size_t rx_buffer_size; 321 size_t rx_buffer_align; 322 int rx_cluster_size; 323 324 unsigned int evq_max; 325 unsigned int evq_count; 326 unsigned int rxq_count; 327 unsigned int txq_count; 328 329 unsigned int tso_fw_assisted; 330 #define SFXGE_FATSOV1 (1 << 0) 331 #define SFXGE_FATSOV2 (1 << 1) 332 333 #if EFSYS_OPT_MCDI_LOGGING 334 int mcdi_logging; 335 #endif 336 }; 337 338 #define SFXGE_LINK_UP(sc) \ 339 ((sc)->port.link_mode != EFX_LINK_DOWN && \ 340 (sc)->port.link_mode != EFX_LINK_UNKNOWN) 341 #define SFXGE_RUNNING(sc) (if_getdrvflags((sc)->ifnet) & IFF_DRV_RUNNING) 342 343 #define SFXGE_PARAM(_name) "hw.sfxge." #_name 344 345 SYSCTL_DECL(_hw_sfxge); 346 347 /* 348 * From sfxge.c. 349 */ 350 extern void sfxge_schedule_reset(struct sfxge_softc *sc); 351 extern void sfxge_sram_buf_tbl_alloc(struct sfxge_softc *sc, size_t n, 352 uint32_t *idp); 353 354 /* 355 * From sfxge_dma.c. 356 */ 357 extern int sfxge_dma_init(struct sfxge_softc *sc); 358 extern void sfxge_dma_fini(struct sfxge_softc *sc); 359 extern int sfxge_dma_alloc(struct sfxge_softc *sc, bus_size_t len, 360 efsys_mem_t *esmp); 361 extern void sfxge_dma_free(efsys_mem_t *esmp); 362 extern int sfxge_dma_map_sg_collapse(bus_dma_tag_t tag, bus_dmamap_t map, 363 struct mbuf **mp, 364 bus_dma_segment_t *segs, 365 int *nsegs, int maxsegs); 366 367 /* 368 * From sfxge_ev.c. 369 */ 370 extern int sfxge_ev_init(struct sfxge_softc *sc); 371 extern void sfxge_ev_fini(struct sfxge_softc *sc); 372 extern int sfxge_ev_start(struct sfxge_softc *sc); 373 extern void sfxge_ev_stop(struct sfxge_softc *sc); 374 extern int sfxge_ev_qpoll(struct sfxge_evq *evq); 375 376 /* 377 * From sfxge_intr.c. 378 */ 379 extern int sfxge_intr_init(struct sfxge_softc *sc); 380 extern void sfxge_intr_fini(struct sfxge_softc *sc); 381 extern int sfxge_intr_start(struct sfxge_softc *sc); 382 extern void sfxge_intr_stop(struct sfxge_softc *sc); 383 384 /* 385 * From sfxge_mcdi.c. 386 */ 387 extern int sfxge_mcdi_init(struct sfxge_softc *sc); 388 extern void sfxge_mcdi_fini(struct sfxge_softc *sc); 389 extern int sfxge_mcdi_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ip); 390 391 /* 392 * From sfxge_nvram.c. 393 */ 394 extern int sfxge_nvram_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ip); 395 396 /* 397 * From sfxge_port.c. 398 */ 399 extern int sfxge_port_init(struct sfxge_softc *sc); 400 extern void sfxge_port_fini(struct sfxge_softc *sc); 401 extern int sfxge_port_start(struct sfxge_softc *sc); 402 extern void sfxge_port_stop(struct sfxge_softc *sc); 403 extern void sfxge_mac_link_update(struct sfxge_softc *sc, 404 efx_link_mode_t mode); 405 extern int sfxge_mac_filter_set(struct sfxge_softc *sc); 406 extern int sfxge_port_ifmedia_init(struct sfxge_softc *sc); 407 extern uint64_t sfxge_get_counter(if_t ifp, ift_counter c); 408 409 #define SFXGE_MAX_MTU (9 * 1024) 410 411 #define SFXGE_ADAPTER_LOCK_INIT(_sc, _ifname) \ 412 do { \ 413 struct sfxge_softc *__sc = (_sc); \ 414 \ 415 snprintf((__sc)->softc_lock_name, \ 416 sizeof((__sc)->softc_lock_name), \ 417 "%s:softc", (_ifname)); \ 418 sx_init(&(__sc)->softc_lock, (__sc)->softc_lock_name); \ 419 } while (B_FALSE) 420 #define SFXGE_ADAPTER_LOCK_DESTROY(_sc) \ 421 sx_destroy(&(_sc)->softc_lock) 422 #define SFXGE_ADAPTER_LOCK(_sc) \ 423 sx_xlock(&(_sc)->softc_lock) 424 #define SFXGE_ADAPTER_UNLOCK(_sc) \ 425 sx_xunlock(&(_sc)->softc_lock) 426 #define SFXGE_ADAPTER_LOCK_ASSERT_OWNED(_sc) \ 427 sx_assert(&(_sc)->softc_lock, LA_XLOCKED) 428 429 #define SFXGE_PORT_LOCK_INIT(_port, _ifname) \ 430 do { \ 431 struct sfxge_port *__port = (_port); \ 432 \ 433 snprintf((__port)->lock_name, \ 434 sizeof((__port)->lock_name), \ 435 "%s:port", (_ifname)); \ 436 mtx_init(&(__port)->lock, (__port)->lock_name, \ 437 NULL, MTX_DEF); \ 438 } while (B_FALSE) 439 #define SFXGE_PORT_LOCK_DESTROY(_port) \ 440 mtx_destroy(&(_port)->lock) 441 #define SFXGE_PORT_LOCK(_port) \ 442 mtx_lock(&(_port)->lock) 443 #define SFXGE_PORT_UNLOCK(_port) \ 444 mtx_unlock(&(_port)->lock) 445 #define SFXGE_PORT_LOCK_ASSERT_OWNED(_port) \ 446 mtx_assert(&(_port)->lock, MA_OWNED) 447 448 #define SFXGE_MCDI_LOCK_INIT(_mcdi, _ifname) \ 449 do { \ 450 struct sfxge_mcdi *__mcdi = (_mcdi); \ 451 \ 452 snprintf((__mcdi)->lock_name, \ 453 sizeof((__mcdi)->lock_name), \ 454 "%s:mcdi", (_ifname)); \ 455 mtx_init(&(__mcdi)->lock, (__mcdi)->lock_name, \ 456 NULL, MTX_DEF); \ 457 } while (B_FALSE) 458 #define SFXGE_MCDI_LOCK_DESTROY(_mcdi) \ 459 mtx_destroy(&(_mcdi)->lock) 460 #define SFXGE_MCDI_LOCK(_mcdi) \ 461 mtx_lock(&(_mcdi)->lock) 462 #define SFXGE_MCDI_UNLOCK(_mcdi) \ 463 mtx_unlock(&(_mcdi)->lock) 464 #define SFXGE_MCDI_LOCK_ASSERT_OWNED(_mcdi) \ 465 mtx_assert(&(_mcdi)->lock, MA_OWNED) 466 467 #define SFXGE_EVQ_LOCK_INIT(_evq, _ifname, _evq_index) \ 468 do { \ 469 struct sfxge_evq *__evq = (_evq); \ 470 \ 471 snprintf((__evq)->lock_name, \ 472 sizeof((__evq)->lock_name), \ 473 "%s:evq%u", (_ifname), (_evq_index)); \ 474 mtx_init(&(__evq)->lock, (__evq)->lock_name, \ 475 NULL, MTX_DEF); \ 476 } while (B_FALSE) 477 #define SFXGE_EVQ_LOCK_DESTROY(_evq) \ 478 mtx_destroy(&(_evq)->lock) 479 #define SFXGE_EVQ_LOCK(_evq) \ 480 mtx_lock(&(_evq)->lock) 481 #define SFXGE_EVQ_UNLOCK(_evq) \ 482 mtx_unlock(&(_evq)->lock) 483 #define SFXGE_EVQ_LOCK_ASSERT_OWNED(_evq) \ 484 mtx_assert(&(_evq)->lock, MA_OWNED) 485 486 #endif /* _SFXGE_H */ 487