Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/ixgbe/ixgbe.h
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1 /****************************************************************************** 2 SPDX-License-Identifier: BSD-3-Clause 3 4 Copyright (c) 2001-2017, Intel Corporation 5 All rights reserved. 6 7 Redistribution and use in source and binary forms, with or without 8 modification, are permitted provided that the following conditions are met: 9 10 1. Redistributions of source code must retain the above copyright notice, 11 this list of conditions and the following disclaimer. 12 13 2. Redistributions in binary form must reproduce the above copyright 14 notice, this list of conditions and the following disclaimer in the 15 documentation and/or other materials provided with the distribution. 16 17 3. Neither the name of the Intel Corporation nor the names of its 18 contributors may be used to endorse or promote products derived from 19 this software without specific prior written permission. 20 21 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 22 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 25 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 POSSIBILITY OF SUCH DAMAGE. 32 33 ******************************************************************************/ 34 /*$FreeBSD$*/ 35 36 #ifndef _IXGBE_H_ 37 #define _IXGBE_H_ 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/buf_ring.h> 42 #include <sys/mbuf.h> 43 #include <sys/protosw.h> 44 #include <sys/socket.h> 45 #include <sys/malloc.h> 46 #include <sys/kernel.h> 47 #include <sys/module.h> 48 #include <sys/sockio.h> 49 #include <sys/eventhandler.h> 50 51 #include <net/if.h> 52 #include <net/if_var.h> 53 #include <net/if_arp.h> 54 #include <net/bpf.h> 55 #include <net/ethernet.h> 56 #include <net/if_dl.h> 57 #include <net/if_media.h> 58 59 #include <net/if_types.h> 60 #include <net/if_vlan_var.h> 61 #include <net/iflib.h> 62 63 #include <netinet/in_systm.h> 64 #include <netinet/in.h> 65 #include <netinet/if_ether.h> 66 67 #include <sys/bus.h> 68 #include <machine/bus.h> 69 #include <sys/rman.h> 70 #include <machine/resource.h> 71 #include <vm/vm.h> 72 #include <vm/pmap.h> 73 #include <machine/clock.h> 74 #include <dev/pci/pcivar.h> 75 #include <dev/pci/pcireg.h> 76 #include <sys/proc.h> 77 #include <sys/sysctl.h> 78 #include <sys/endian.h> 79 #include <sys/gtaskqueue.h> 80 #include <sys/pcpu.h> 81 #include <sys/smp.h> 82 #include <machine/smp.h> 83 #include <sys/sbuf.h> 84 85 #include "ixgbe_api.h" 86 #include "ixgbe_common.h" 87 #include "ixgbe_phy.h" 88 #include "ixgbe_vf.h" 89 #include "ixgbe_features.h" 90 91 /* Tunables */ 92 93 /* 94 * TxDescriptors Valid Range: 64-4096 Default Value: 256 This value is the 95 * number of transmit descriptors allocated by the driver. Increasing this 96 * value allows the driver to queue more transmits. Each descriptor is 16 97 * bytes. Performance tests have show the 2K value to be optimal for top 98 * performance. 99 */ 100 #define DEFAULT_TXD 2048 101 #define PERFORM_TXD 2048 102 #define MAX_TXD 4096 103 #define MIN_TXD 64 104 105 /* 106 * RxDescriptors Valid Range: 64-4096 Default Value: 256 This value is the 107 * number of receive descriptors allocated for each RX queue. Increasing this 108 * value allows the driver to buffer more incoming packets. Each descriptor 109 * is 16 bytes. A receive buffer is also allocated for each descriptor. 110 * 111 * Note: with 8 rings and a dual port card, it is possible to bump up 112 * against the system mbuf pool limit, you can tune nmbclusters 113 * to adjust for this. 114 */ 115 #define DEFAULT_RXD 2048 116 #define PERFORM_RXD 2048 117 #define MAX_RXD 4096 118 #define MIN_RXD 64 119 120 /* Alignment for rings */ 121 #define DBA_ALIGN 128 122 123 /* 124 * This is the max watchdog interval, ie. the time that can 125 * pass between any two TX clean operations, such only happening 126 * when the TX hardware is functioning. 127 */ 128 #define IXGBE_WATCHDOG (10 * hz) 129 130 /* 131 * This parameters control when the driver calls the routine to reclaim 132 * transmit descriptors. 133 */ 134 #define IXGBE_TX_CLEANUP_THRESHOLD(_a) ((_a)->num_tx_desc / 8) 135 #define IXGBE_TX_OP_THRESHOLD(_a) ((_a)->num_tx_desc / 32) 136 137 /* These defines are used in MTU calculations */ 138 #define IXGBE_MAX_FRAME_SIZE 9728 139 #define IXGBE_MTU_HDR (ETHER_HDR_LEN + ETHER_CRC_LEN) 140 #define IXGBE_MTU_HDR_VLAN (ETHER_HDR_LEN + ETHER_CRC_LEN + \ 141 ETHER_VLAN_ENCAP_LEN) 142 #define IXGBE_MAX_MTU (IXGBE_MAX_FRAME_SIZE - IXGBE_MTU_HDR) 143 #define IXGBE_MAX_MTU_VLAN (IXGBE_MAX_FRAME_SIZE - IXGBE_MTU_HDR_VLAN) 144 145 /* Flow control constants */ 146 #define IXGBE_FC_PAUSE 0xFFFF 147 #define IXGBE_FC_HI 0x20000 148 #define IXGBE_FC_LO 0x10000 149 150 /* 151 * Used for optimizing small rx mbufs. Effort is made to keep the copy 152 * small and aligned for the CPU L1 cache. 153 * 154 * MHLEN is typically 168 bytes, giving us 8-byte alignment. Getting 155 * 32 byte alignment needed for the fast bcopy results in 8 bytes being 156 * wasted. Getting 64 byte alignment, which _should_ be ideal for 157 * modern Intel CPUs, results in 40 bytes wasted and a significant drop 158 * in observed efficiency of the optimization, 97.9% -> 81.8%. 159 */ 160 #define IXGBE_MPKTHSIZE (sizeof(struct m_hdr) + sizeof(struct pkthdr)) 161 162 #define IXGBE_RX_COPY_HDR_PADDED ((((IXGBE_MPKTHSIZE - 1) / 32) + 1) * 32) 163 #define IXGBE_RX_COPY_LEN (MSIZE - IXGBE_RX_COPY_HDR_PADDED) 164 #define IXGBE_RX_COPY_ALIGN (IXGBE_RX_COPY_HDR_PADDED - IXGBE_MPKTHSIZE) 165 166 /* Defines for printing debug information */ 167 #define DEBUG_INIT 0 168 #define DEBUG_IOCTL 0 169 #define DEBUG_HW 0 170 171 #define INIT_DEBUGOUT(S) if (DEBUG_INIT) printf(S "\n") 172 #define INIT_DEBUGOUT1(S, A) if (DEBUG_INIT) printf(S "\n", A) 173 #define INIT_DEBUGOUT2(S, A, B) if (DEBUG_INIT) printf(S "\n", A, B) 174 #define IOCTL_DEBUGOUT(S) if (DEBUG_IOCTL) printf(S "\n") 175 #define IOCTL_DEBUGOUT1(S, A) if (DEBUG_IOCTL) printf(S "\n", A) 176 #define IOCTL_DEBUGOUT2(S, A, B) if (DEBUG_IOCTL) printf(S "\n", A, B) 177 #define HW_DEBUGOUT(S) if (DEBUG_HW) printf(S "\n") 178 #define HW_DEBUGOUT1(S, A) if (DEBUG_HW) printf(S "\n", A) 179 #define HW_DEBUGOUT2(S, A, B) if (DEBUG_HW) printf(S "\n", A, B) 180 181 #define MAX_NUM_MULTICAST_ADDRESSES 128 182 #define IXGBE_82598_SCATTER 100 183 #define IXGBE_82599_SCATTER 32 184 #define IXGBE_TSO_SIZE 262140 185 #define IXGBE_RX_HDR 128 186 #define IXGBE_VFTA_SIZE 128 187 #define IXGBE_BR_SIZE 4096 188 #define IXGBE_QUEUE_MIN_FREE 32 189 #define IXGBE_MAX_TX_BUSY 10 190 #define IXGBE_QUEUE_HUNG 0x80000000 191 192 #define IXGBE_EITR_DEFAULT 128 193 194 /* Supported offload bits in mbuf flag */ 195 #define CSUM_OFFLOAD (CSUM_IP_TSO|CSUM_IP6_TSO|CSUM_IP| \ 196 CSUM_IP_UDP|CSUM_IP_TCP|CSUM_IP_SCTP| \ 197 CSUM_IP6_UDP|CSUM_IP6_TCP|CSUM_IP6_SCTP) 198 199 #define IXGBE_CAPS (IFCAP_HWCSUM | IFCAP_HWCSUM_IPV6 | IFCAP_TSO | \ 200 IFCAP_LRO | IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_HWTSO | \ 201 IFCAP_VLAN_HWCSUM | IFCAP_JUMBO_MTU | IFCAP_VLAN_MTU | \ 202 IFCAP_VLAN_HWFILTER | IFCAP_WOL) 203 204 #ifndef DEVMETHOD_END 205 #define DEVMETHOD_END { NULL, NULL } 206 #endif 207 208 /* 209 * Interrupt Moderation parameters 210 */ 211 #define IXGBE_LOW_LATENCY 128 212 #define IXGBE_AVE_LATENCY 400 213 #define IXGBE_BULK_LATENCY 1200 214 215 /* Using 1FF (the max value), the interval is ~1.05ms */ 216 #define IXGBE_LINK_ITR_QUANTA 0x1FF 217 #define IXGBE_LINK_ITR ((IXGBE_LINK_ITR_QUANTA << 3) & \ 218 IXGBE_EITR_ITR_INT_MASK) 219 220 221 /************************************************************************ 222 * vendor_info_array 223 * 224 * Contains the list of Subvendor/Subdevice IDs on 225 * which the driver should load. 226 ************************************************************************/ 227 typedef struct _ixgbe_vendor_info_t { 228 unsigned int vendor_id; 229 unsigned int device_id; 230 unsigned int subvendor_id; 231 unsigned int subdevice_id; 232 unsigned int index; 233 } ixgbe_vendor_info_t; 234 235 struct ixgbe_bp_data { 236 u32 low; 237 u32 high; 238 u32 log; 239 }; 240 241 242 /* 243 */ 244 struct ixgbe_dma_alloc { 245 bus_addr_t dma_paddr; 246 caddr_t dma_vaddr; 247 bus_dma_tag_t dma_tag; 248 bus_dmamap_t dma_map; 249 bus_dma_segment_t dma_seg; 250 bus_size_t dma_size; 251 int dma_nseg; 252 }; 253 254 struct ixgbe_mc_addr { 255 u8 addr[IXGBE_ETH_LENGTH_OF_ADDRESS]; 256 u32 vmdq; 257 }; 258 259 /* 260 * The transmit ring, one per queue 261 */ 262 struct tx_ring { 263 struct ixgbe_softc *sc; 264 union ixgbe_adv_tx_desc *tx_base; 265 uint64_t tx_paddr; 266 u32 tail; 267 qidx_t *tx_rsq; 268 qidx_t tx_rs_cidx; 269 qidx_t tx_rs_pidx; 270 qidx_t tx_cidx_processed; 271 uint8_t me; 272 273 /* Flow Director */ 274 u16 atr_sample; 275 u16 atr_count; 276 277 u32 bytes; /* used for AIM */ 278 u32 packets; 279 /* Soft Stats */ 280 u64 tso_tx; 281 u64 total_packets; 282 }; 283 284 285 /* 286 * The Receive ring, one per rx queue 287 */ 288 struct rx_ring { 289 struct ix_rx_queue *que; 290 struct ixgbe_softc *sc; 291 u32 me; 292 u32 tail; 293 union ixgbe_adv_rx_desc *rx_base; 294 bool hw_rsc; 295 bool vtag_strip; 296 uint64_t rx_paddr; 297 bus_dma_tag_t ptag; 298 299 u32 bytes; /* Used for AIM calc */ 300 u32 packets; 301 302 /* Soft stats */ 303 u64 rx_irq; 304 u64 rx_copies; 305 u64 rx_packets; 306 u64 rx_bytes; 307 u64 rx_discarded; 308 u64 rsc_num; 309 310 /* Flow Director */ 311 u64 flm; 312 }; 313 314 /* 315 * Driver queue struct: this is the interrupt container 316 * for the associated tx and rx ring. 317 */ 318 struct ix_rx_queue { 319 struct ixgbe_softc *sc; 320 u32 msix; /* This queue's MSIX vector */ 321 u32 eitr_setting; 322 struct resource *res; 323 void *tag; 324 int busy; 325 struct rx_ring rxr; 326 struct if_irq que_irq; 327 u64 irqs; 328 }; 329 330 struct ix_tx_queue { 331 struct ixgbe_softc *sc; 332 u32 msix; /* This queue's MSIX vector */ 333 struct tx_ring txr; 334 }; 335 336 #define IXGBE_MAX_VF_MC 30 /* Max number of multicast entries */ 337 338 struct ixgbe_vf { 339 u_int pool; 340 u_int rar_index; 341 u_int maximum_frame_size; 342 uint32_t flags; 343 uint8_t ether_addr[ETHER_ADDR_LEN]; 344 uint16_t mc_hash[IXGBE_MAX_VF_MC]; 345 uint16_t num_mc_hashes; 346 uint16_t default_vlan; 347 uint16_t vlan_tag; 348 uint16_t api_ver; 349 }; 350 351 /* Our softc structure */ 352 struct ixgbe_softc { 353 struct ixgbe_hw hw; 354 struct ixgbe_osdep osdep; 355 if_ctx_t ctx; 356 if_softc_ctx_t shared; 357 #define num_tx_queues shared->isc_ntxqsets 358 #define num_rx_queues shared->isc_nrxqsets 359 #define max_frame_size shared->isc_max_frame_size 360 #define intr_type shared->isc_intr 361 362 device_t dev; 363 struct ifnet *ifp; 364 365 struct resource *pci_mem; 366 367 /* 368 * Interrupt resources: this set is 369 * either used for legacy, or for Link 370 * when doing MSI-X 371 */ 372 struct if_irq irq; 373 void *tag; 374 struct resource *res; 375 376 struct ifmedia *media; 377 int if_flags; 378 int msix; 379 380 u16 num_vlans; 381 382 /* 383 * Shadow VFTA table, this is needed because 384 * the real vlan filter table gets cleared during 385 * a soft reset and the driver needs to be able 386 * to repopulate it. 387 */ 388 u32 shadow_vfta[IXGBE_VFTA_SIZE]; 389 390 /* Info about the interface */ 391 int advertise; /* link speeds */ 392 int enable_aim; /* adaptive interrupt moderation */ 393 bool link_active; 394 u16 num_segs; 395 u32 link_speed; 396 bool link_up; 397 bool link_enabled; 398 u32 vector; 399 u16 dmac; 400 u32 phy_layer; 401 402 /* Power management-related */ 403 bool wol_support; 404 u32 wufc; 405 406 /* Mbuf cluster size */ 407 u32 rx_mbuf_sz; 408 409 /* Support for pluggable optics */ 410 bool sfp_probe; 411 412 /* Flow Director */ 413 int fdir_reinit; 414 415 u32 task_requests; 416 417 /* 418 * Queues: 419 * This is the irq holder, it has 420 * and RX/TX pair or rings associated 421 * with it. 422 */ 423 struct ix_tx_queue *tx_queues; 424 struct ix_rx_queue *rx_queues; 425 426 /* Multicast array memory */ 427 struct ixgbe_mc_addr *mta; 428 429 /* SR-IOV */ 430 int iov_mode; 431 int num_vfs; 432 int pool; 433 struct ixgbe_vf *vfs; 434 435 /* Bypass */ 436 struct ixgbe_bp_data bypass; 437 438 /* Misc stats maintained by the driver */ 439 unsigned long dropped_pkts; 440 unsigned long mbuf_header_failed; 441 unsigned long mbuf_packet_failed; 442 unsigned long watchdog_events; 443 unsigned long link_irq; 444 union { 445 struct ixgbe_hw_stats pf; 446 struct ixgbevf_hw_stats vf; 447 } stats; 448 449 /* counter(9) stats */ 450 u64 ipackets; 451 u64 ierrors; 452 u64 opackets; 453 u64 oerrors; 454 u64 ibytes; 455 u64 obytes; 456 u64 imcasts; 457 u64 omcasts; 458 u64 iqdrops; 459 u64 noproto; 460 461 /* Feature capable/enabled flags. See ixgbe_features.h */ 462 u32 feat_cap; 463 u32 feat_en; 464 }; 465 466 /* Precision Time Sync (IEEE 1588) defines */ 467 #define ETHERTYPE_IEEE1588 0x88F7 468 #define PICOSECS_PER_TICK 20833 469 #define TSYNC_UDP_PORT 319 /* UDP port for the protocol */ 470 #define IXGBE_ADVTXD_TSTAMP 0x00080000 471 472 /* Stats macros */ 473 #define IXGBE_SET_IPACKETS(sc, count) (sc)->ipackets = (count) 474 #define IXGBE_SET_IERRORS(sc, count) (sc)->ierrors = (count) 475 #define IXGBE_SET_OPACKETS(sc, count) (sc)->opackets = (count) 476 #define IXGBE_SET_OERRORS(sc, count) (sc)->oerrors = (count) 477 #define IXGBE_SET_COLLISIONS(sc, count) 478 #define IXGBE_SET_IBYTES(sc, count) (sc)->ibytes = (count) 479 #define IXGBE_SET_OBYTES(sc, count) (sc)->obytes = (count) 480 #define IXGBE_SET_IMCASTS(sc, count) (sc)->imcasts = (count) 481 #define IXGBE_SET_OMCASTS(sc, count) (sc)->omcasts = (count) 482 #define IXGBE_SET_IQDROPS(sc, count) (sc)->iqdrops = (count) 483 484 /* External PHY register addresses */ 485 #define IXGBE_PHY_CURRENT_TEMP 0xC820 486 #define IXGBE_PHY_OVERTEMP_STATUS 0xC830 487 488 /* Sysctl help messages; displayed with sysctl -d */ 489 #define IXGBE_SYSCTL_DESC_ADV_SPEED \ 490 "\nControl advertised link speed using these flags:\n" \ 491 "\t0x1 - advertise 100M\n" \ 492 "\t0x2 - advertise 1G\n" \ 493 "\t0x4 - advertise 10G\n" \ 494 "\t0x8 - advertise 10M\n\n" \ 495 "\t0x10 - advertise 2.5G\n" \ 496 "\t0x20 - advertise 5G\n\n" \ 497 "\t100M and 10M are only supported on certain adapters.\n" 498 499 #define IXGBE_SYSCTL_DESC_SET_FC \ 500 "\nSet flow control mode using these values:\n" \ 501 "\t0 - off\n" \ 502 "\t1 - rx pause\n" \ 503 "\t2 - tx pause\n" \ 504 "\t3 - tx and rx pause" 505 506 #define IXGBE_SYSCTL_DESC_RX_ERRS \ 507 "\nSum of the following RX errors counters:\n" \ 508 " * CRC errors,\n" \ 509 " * illegal byte error count,\n" \ 510 " * checksum error count,\n" \ 511 " * missed packet count,\n" \ 512 " * length error count,\n" \ 513 " * undersized packets count,\n" \ 514 " * fragmented packets count,\n" \ 515 " * oversized packets count,\n" \ 516 " * jabber count." 517 518 /* 519 * This checks for a zero mac addr, something that will be likely 520 * unless the Admin on the Host has created one. 521 */ 522 static inline bool 523 ixv_check_ether_addr(u8 *addr) 524 { 525 bool status = true; 526 527 if ((addr[0] == 0 && addr[1]== 0 && addr[2] == 0 && 528 addr[3] == 0 && addr[4]== 0 && addr[5] == 0)) 529 status = false; 530 531 return (status); 532 } 533 534 /* Shared Prototypes */ 535 536 int ixgbe_allocate_queues(struct ixgbe_softc *); 537 int ixgbe_setup_transmit_structures(struct ixgbe_softc *); 538 void ixgbe_free_transmit_structures(struct ixgbe_softc *); 539 int ixgbe_setup_receive_structures(struct ixgbe_softc *); 540 void ixgbe_free_receive_structures(struct ixgbe_softc *); 541 int ixgbe_get_regs(SYSCTL_HANDLER_ARGS); 542 543 #include "ixgbe_bypass.h" 544 #include "ixgbe_fdir.h" 545 #include "ixgbe_rss.h" 546 547 #endif /* _IXGBE_H_ */
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