1 /*- 2 * Copyright (c) 2010-2016 Solarflare Communications Inc. 3 * All rights reserved. 4 * 5 * This software was developed in part by Philip Paeps under contract for 6 * Solarflare Communications, Inc. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright notice, 12 * this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright notice, 14 * this list of conditions and the following disclaimer in the documentation 15 * and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 19 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 21 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 24 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 26 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 27 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * The views and conclusions contained in the software and documentation are 30 * those of the authors and should not be interpreted as representing official 31 * policies, either expressed or implied, of the FreeBSD Project. 32 * 33 * $FreeBSD$ 34 */ 35 36 #ifndef _SFXGE_H 37 #define _SFXGE_H 38 39 #include <sys/param.h> 40 #include <sys/kernel.h> 41 #include <sys/socket.h> 42 #include <sys/sysctl.h> 43 #include <sys/sx.h> 44 #include <vm/uma.h> 45 46 #include <net/ethernet.h> 47 #include <net/if.h> 48 #include <net/if_var.h> 49 #include <net/if_media.h> 50 #include <net/if_types.h> 51 52 #include "sfxge_ioc.h" 53 54 /* 55 * Debugging 56 */ 57 #if 0 58 #define DBGPRINT(dev, fmt, args...) \ 59 device_printf(dev, "%s: " fmt "\n", __func__, ## args) 60 #else 61 #define DBGPRINT(dev, fmt, args...) 62 #endif 63 64 /* 65 * Backward-compatibility 66 */ 67 #ifndef CACHE_LINE_SIZE 68 /* This should be right on most machines the driver will be used on, and 69 * we needn't care too much about wasting a few KB per interface. 70 */ 71 #define CACHE_LINE_SIZE 128 72 #endif 73 74 #ifndef IFCAP_LINKSTATE 75 #define IFCAP_LINKSTATE 0 76 #endif 77 78 #ifndef IFCAP_VLAN_HWTSO 79 #define IFCAP_VLAN_HWTSO 0 80 #endif 81 82 #ifndef IFM_10G_T 83 #define IFM_10G_T IFM_UNKNOWN 84 #endif 85 86 #ifndef IFM_10G_KX4 87 #define IFM_10G_KX4 IFM_10G_CX4 88 #endif 89 90 #ifndef IFM_40G_CR4 91 #define IFM_40G_CR4 IFM_UNKNOWN 92 #endif 93 94 #if (__FreeBSD_version >= 800501 && __FreeBSD_version < 900000) || \ 95 __FreeBSD_version >= 900003 96 #define SFXGE_HAVE_DESCRIBE_INTR 97 #endif 98 99 #ifdef IFM_ETH_RXPAUSE 100 #define SFXGE_HAVE_PAUSE_MEDIAOPTS 101 #endif 102 103 #ifndef CTLTYPE_U64 104 #define CTLTYPE_U64 CTLTYPE_QUAD 105 #endif 106 107 #include "sfxge_rx.h" 108 #include "sfxge_tx.h" 109 110 #define ROUNDUP_POW_OF_TWO(_n) (1ULL << flsl((_n) - 1)) 111 112 #define SFXGE_IP_ALIGN 2 113 114 #define SFXGE_ETHERTYPE_LOOPBACK 0x9000 /* Xerox loopback */ 115 116 117 #define SFXGE_MAGIC_RESERVED 0x8000 118 119 #define SFXGE_MAGIC_DMAQ_LABEL_WIDTH 6 120 #define SFXGE_MAGIC_DMAQ_LABEL_MASK \ 121 ((1 << SFXGE_MAGIC_DMAQ_LABEL_WIDTH) - 1) 122 123 enum sfxge_sw_ev { 124 SFXGE_SW_EV_RX_QFLUSH_DONE = 1, 125 SFXGE_SW_EV_RX_QFLUSH_FAILED, 126 SFXGE_SW_EV_RX_QREFILL, 127 SFXGE_SW_EV_TX_QFLUSH_DONE, 128 }; 129 130 #define SFXGE_SW_EV_MAGIC(_sw_ev) \ 131 (SFXGE_MAGIC_RESERVED | ((_sw_ev) << SFXGE_MAGIC_DMAQ_LABEL_WIDTH)) 132 133 static inline uint16_t 134 sfxge_sw_ev_mk_magic(enum sfxge_sw_ev sw_ev, unsigned int label) 135 { 136 KASSERT((label & SFXGE_MAGIC_DMAQ_LABEL_MASK) == label, 137 ("(label & SFXGE_MAGIC_DMAQ_LABEL_MASK) != label")); 138 return SFXGE_SW_EV_MAGIC(sw_ev) | label; 139 } 140 141 static inline uint16_t 142 sfxge_sw_ev_rxq_magic(enum sfxge_sw_ev sw_ev, struct sfxge_rxq *rxq) 143 { 144 return sfxge_sw_ev_mk_magic(sw_ev, 0); 145 } 146 147 static inline uint16_t 148 sfxge_sw_ev_txq_magic(enum sfxge_sw_ev sw_ev, struct sfxge_txq *txq) 149 { 150 return sfxge_sw_ev_mk_magic(sw_ev, txq->type); 151 } 152 153 enum sfxge_evq_state { 154 SFXGE_EVQ_UNINITIALIZED = 0, 155 SFXGE_EVQ_INITIALIZED, 156 SFXGE_EVQ_STARTING, 157 SFXGE_EVQ_STARTED 158 }; 159 160 #define SFXGE_EV_BATCH 16384 161 162 struct sfxge_evq { 163 /* Structure members below are sorted by usage order */ 164 struct sfxge_softc *sc; 165 struct mtx lock; 166 unsigned int index; 167 enum sfxge_evq_state init_state; 168 efsys_mem_t mem; 169 efx_evq_t *common; 170 unsigned int read_ptr; 171 boolean_t exception; 172 unsigned int rx_done; 173 unsigned int tx_done; 174 175 /* Linked list of TX queues with completions to process */ 176 struct sfxge_txq *txq; 177 struct sfxge_txq **txqs; 178 179 /* Structure members not used on event processing path */ 180 unsigned int buf_base_id; 181 unsigned int entries; 182 char lock_name[SFXGE_LOCK_NAME_MAX]; 183 } __aligned(CACHE_LINE_SIZE); 184 185 #define SFXGE_NDESCS 1024 186 #define SFXGE_MODERATION 30 187 188 enum sfxge_intr_state { 189 SFXGE_INTR_UNINITIALIZED = 0, 190 SFXGE_INTR_INITIALIZED, 191 SFXGE_INTR_TESTING, 192 SFXGE_INTR_STARTED 193 }; 194 195 struct sfxge_intr_hdl { 196 int eih_rid; 197 void *eih_tag; 198 struct resource *eih_res; 199 }; 200 201 struct sfxge_intr { 202 enum sfxge_intr_state state; 203 struct resource *msix_res; 204 struct sfxge_intr_hdl *table; 205 int n_alloc; 206 int type; 207 efsys_mem_t status; 208 uint32_t zero_count; 209 }; 210 211 enum sfxge_mcdi_state { 212 SFXGE_MCDI_UNINITIALIZED = 0, 213 SFXGE_MCDI_INITIALIZED, 214 SFXGE_MCDI_BUSY, 215 SFXGE_MCDI_COMPLETED 216 }; 217 218 struct sfxge_mcdi { 219 struct mtx lock; 220 efsys_mem_t mem; 221 enum sfxge_mcdi_state state; 222 efx_mcdi_transport_t transport; 223 224 /* Only used in debugging output */ 225 char lock_name[SFXGE_LOCK_NAME_MAX]; 226 }; 227 228 struct sfxge_hw_stats { 229 clock_t update_time; 230 efsys_mem_t dma_buf; 231 void *decode_buf; 232 }; 233 234 enum sfxge_port_state { 235 SFXGE_PORT_UNINITIALIZED = 0, 236 SFXGE_PORT_INITIALIZED, 237 SFXGE_PORT_STARTED 238 }; 239 240 struct sfxge_port { 241 struct sfxge_softc *sc; 242 struct mtx lock; 243 enum sfxge_port_state init_state; 244 #ifndef SFXGE_HAVE_PAUSE_MEDIAOPTS 245 unsigned int wanted_fc; 246 #endif 247 struct sfxge_hw_stats phy_stats; 248 struct sfxge_hw_stats mac_stats; 249 efx_link_mode_t link_mode; 250 uint8_t mcast_addrs[EFX_MAC_MULTICAST_LIST_MAX * 251 EFX_MAC_ADDR_LEN]; 252 unsigned int mcast_count; 253 254 /* Only used in debugging output */ 255 char lock_name[SFXGE_LOCK_NAME_MAX]; 256 }; 257 258 enum sfxge_softc_state { 259 SFXGE_UNINITIALIZED = 0, 260 SFXGE_INITIALIZED, 261 SFXGE_REGISTERED, 262 SFXGE_STARTED 263 }; 264 265 struct sfxge_softc { 266 device_t dev; 267 struct sx softc_lock; 268 char softc_lock_name[SFXGE_LOCK_NAME_MAX]; 269 enum sfxge_softc_state init_state; 270 struct ifnet *ifnet; 271 unsigned int if_flags; 272 struct sysctl_oid *stats_node; 273 struct sysctl_oid *txqs_node; 274 275 struct task task_reset; 276 277 efx_family_t family; 278 caddr_t vpd_data; 279 size_t vpd_size; 280 efx_nic_t *enp; 281 efsys_lock_t enp_lock; 282 283 unsigned int rxq_entries; 284 unsigned int txq_entries; 285 286 bus_dma_tag_t parent_dma_tag; 287 efsys_bar_t bar; 288 289 struct sfxge_intr intr; 290 struct sfxge_mcdi mcdi; 291 struct sfxge_port port; 292 uint32_t buffer_table_next; 293 294 struct sfxge_evq *evq[SFXGE_RX_SCALE_MAX]; 295 unsigned int ev_moderation; 296 #if EFSYS_OPT_QSTATS 297 clock_t ev_stats_update_time; 298 uint64_t ev_stats[EV_NQSTATS]; 299 #endif 300 301 unsigned int max_rss_channels; 302 uma_zone_t rxq_cache; 303 struct sfxge_rxq *rxq[SFXGE_RX_SCALE_MAX]; 304 unsigned int rx_indir_table[SFXGE_RX_SCALE_MAX]; 305 306 struct sfxge_txq *txq[SFXGE_TXQ_NTYPES + SFXGE_RX_SCALE_MAX]; 307 308 struct ifmedia media; 309 310 size_t rx_prefix_size; 311 size_t rx_buffer_size; 312 size_t rx_buffer_align; 313 int rx_cluster_size; 314 315 unsigned int evq_max; 316 unsigned int evq_count; 317 unsigned int rxq_count; 318 unsigned int txq_count; 319 320 unsigned int tso_fw_assisted; 321 #define SFXGE_FATSOV1 (1 << 0) 322 #define SFXGE_FATSOV2 (1 << 1) 323 324 #if EFSYS_OPT_MCDI_LOGGING 325 int mcdi_logging; 326 #endif 327 }; 328 329 #define SFXGE_LINK_UP(sc) ((sc)->port.link_mode != EFX_LINK_DOWN) 330 #define SFXGE_RUNNING(sc) ((sc)->ifnet->if_drv_flags & IFF_DRV_RUNNING) 331 332 #define SFXGE_PARAM(_name) "hw.sfxge." #_name 333 334 SYSCTL_DECL(_hw_sfxge); 335 336 /* 337 * From sfxge.c. 338 */ 339 extern void sfxge_schedule_reset(struct sfxge_softc *sc); 340 extern void sfxge_sram_buf_tbl_alloc(struct sfxge_softc *sc, size_t n, 341 uint32_t *idp); 342 343 /* 344 * From sfxge_dma.c. 345 */ 346 extern int sfxge_dma_init(struct sfxge_softc *sc); 347 extern void sfxge_dma_fini(struct sfxge_softc *sc); 348 extern int sfxge_dma_alloc(struct sfxge_softc *sc, bus_size_t len, 349 efsys_mem_t *esmp); 350 extern void sfxge_dma_free(efsys_mem_t *esmp); 351 extern int sfxge_dma_map_sg_collapse(bus_dma_tag_t tag, bus_dmamap_t map, 352 struct mbuf **mp, 353 bus_dma_segment_t *segs, 354 int *nsegs, int maxsegs); 355 356 /* 357 * From sfxge_ev.c. 358 */ 359 extern int sfxge_ev_init(struct sfxge_softc *sc); 360 extern void sfxge_ev_fini(struct sfxge_softc *sc); 361 extern int sfxge_ev_start(struct sfxge_softc *sc); 362 extern void sfxge_ev_stop(struct sfxge_softc *sc); 363 extern int sfxge_ev_qpoll(struct sfxge_evq *evq); 364 365 /* 366 * From sfxge_intr.c. 367 */ 368 extern int sfxge_intr_init(struct sfxge_softc *sc); 369 extern void sfxge_intr_fini(struct sfxge_softc *sc); 370 extern int sfxge_intr_start(struct sfxge_softc *sc); 371 extern void sfxge_intr_stop(struct sfxge_softc *sc); 372 373 /* 374 * From sfxge_mcdi.c. 375 */ 376 extern int sfxge_mcdi_init(struct sfxge_softc *sc); 377 extern void sfxge_mcdi_fini(struct sfxge_softc *sc); 378 extern int sfxge_mcdi_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ip); 379 380 /* 381 * From sfxge_nvram.c. 382 */ 383 extern int sfxge_nvram_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ip); 384 385 /* 386 * From sfxge_port.c. 387 */ 388 extern int sfxge_port_init(struct sfxge_softc *sc); 389 extern void sfxge_port_fini(struct sfxge_softc *sc); 390 extern int sfxge_port_start(struct sfxge_softc *sc); 391 extern void sfxge_port_stop(struct sfxge_softc *sc); 392 extern void sfxge_mac_link_update(struct sfxge_softc *sc, 393 efx_link_mode_t mode); 394 extern int sfxge_mac_filter_set(struct sfxge_softc *sc); 395 extern int sfxge_port_ifmedia_init(struct sfxge_softc *sc); 396 extern uint64_t sfxge_get_counter(struct ifnet *ifp, ift_counter c); 397 398 #define SFXGE_MAX_MTU (9 * 1024) 399 400 #define SFXGE_ADAPTER_LOCK_INIT(_sc, _ifname) \ 401 do { \ 402 struct sfxge_softc *__sc = (_sc); \ 403 \ 404 snprintf((__sc)->softc_lock_name, \ 405 sizeof((__sc)->softc_lock_name), \ 406 "%s:softc", (_ifname)); \ 407 sx_init(&(__sc)->softc_lock, (__sc)->softc_lock_name); \ 408 } while (B_FALSE) 409 #define SFXGE_ADAPTER_LOCK_DESTROY(_sc) \ 410 sx_destroy(&(_sc)->softc_lock) 411 #define SFXGE_ADAPTER_LOCK(_sc) \ 412 sx_xlock(&(_sc)->softc_lock) 413 #define SFXGE_ADAPTER_UNLOCK(_sc) \ 414 sx_xunlock(&(_sc)->softc_lock) 415 #define SFXGE_ADAPTER_LOCK_ASSERT_OWNED(_sc) \ 416 sx_assert(&(_sc)->softc_lock, LA_XLOCKED) 417 418 #define SFXGE_PORT_LOCK_INIT(_port, _ifname) \ 419 do { \ 420 struct sfxge_port *__port = (_port); \ 421 \ 422 snprintf((__port)->lock_name, \ 423 sizeof((__port)->lock_name), \ 424 "%s:port", (_ifname)); \ 425 mtx_init(&(__port)->lock, (__port)->lock_name, \ 426 NULL, MTX_DEF); \ 427 } while (B_FALSE) 428 #define SFXGE_PORT_LOCK_DESTROY(_port) \ 429 mtx_destroy(&(_port)->lock) 430 #define SFXGE_PORT_LOCK(_port) \ 431 mtx_lock(&(_port)->lock) 432 #define SFXGE_PORT_UNLOCK(_port) \ 433 mtx_unlock(&(_port)->lock) 434 #define SFXGE_PORT_LOCK_ASSERT_OWNED(_port) \ 435 mtx_assert(&(_port)->lock, MA_OWNED) 436 437 #define SFXGE_MCDI_LOCK_INIT(_mcdi, _ifname) \ 438 do { \ 439 struct sfxge_mcdi *__mcdi = (_mcdi); \ 440 \ 441 snprintf((__mcdi)->lock_name, \ 442 sizeof((__mcdi)->lock_name), \ 443 "%s:mcdi", (_ifname)); \ 444 mtx_init(&(__mcdi)->lock, (__mcdi)->lock_name, \ 445 NULL, MTX_DEF); \ 446 } while (B_FALSE) 447 #define SFXGE_MCDI_LOCK_DESTROY(_mcdi) \ 448 mtx_destroy(&(_mcdi)->lock) 449 #define SFXGE_MCDI_LOCK(_mcdi) \ 450 mtx_lock(&(_mcdi)->lock) 451 #define SFXGE_MCDI_UNLOCK(_mcdi) \ 452 mtx_unlock(&(_mcdi)->lock) 453 #define SFXGE_MCDI_LOCK_ASSERT_OWNED(_mcdi) \ 454 mtx_assert(&(_mcdi)->lock, MA_OWNED) 455 456 #define SFXGE_EVQ_LOCK_INIT(_evq, _ifname, _evq_index) \ 457 do { \ 458 struct sfxge_evq *__evq = (_evq); \ 459 \ 460 snprintf((__evq)->lock_name, \ 461 sizeof((__evq)->lock_name), \ 462 "%s:evq%u", (_ifname), (_evq_index)); \ 463 mtx_init(&(__evq)->lock, (__evq)->lock_name, \ 464 NULL, MTX_DEF); \ 465 } while (B_FALSE) 466 #define SFXGE_EVQ_LOCK_DESTROY(_evq) \ 467 mtx_destroy(&(_evq)->lock) 468 #define SFXGE_EVQ_LOCK(_evq) \ 469 mtx_lock(&(_evq)->lock) 470 #define SFXGE_EVQ_UNLOCK(_evq) \ 471 mtx_unlock(&(_evq)->lock) 472 #define SFXGE_EVQ_LOCK_ASSERT_OWNED(_evq) \ 473 mtx_assert(&(_evq)->lock, MA_OWNED) 474 475 #endif /* _SFXGE_H */ 476