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 37 #ifndef _IXGBE_H_ 38 #define _IXGBE_H_ 39 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/buf_ring.h> 44 #include <sys/mbuf.h> 45 #include <sys/protosw.h> 46 #include <sys/socket.h> 47 #include <sys/malloc.h> 48 #include <sys/kernel.h> 49 #include <sys/module.h> 50 #include <sys/sockio.h> 51 #include <sys/eventhandler.h> 52 53 #include <net/if.h> 54 #include <net/if_var.h> 55 #include <net/if_arp.h> 56 #include <net/bpf.h> 57 #include <net/ethernet.h> 58 #include <net/if_dl.h> 59 #include <net/if_media.h> 60 61 #include <net/if_types.h> 62 #include <net/if_vlan_var.h> 63 #include <net/iflib.h> 64 65 #include <netinet/in_systm.h> 66 #include <netinet/in.h> 67 #include <netinet/if_ether.h> 68 69 #include <sys/bus.h> 70 #include <machine/bus.h> 71 #include <sys/rman.h> 72 #include <machine/resource.h> 73 #include <vm/vm.h> 74 #include <vm/pmap.h> 75 #include <machine/clock.h> 76 #include <dev/pci/pcivar.h> 77 #include <dev/pci/pcireg.h> 78 #include <sys/proc.h> 79 #include <sys/sysctl.h> 80 #include <sys/endian.h> 81 #include <sys/gtaskqueue.h> 82 #include <sys/pcpu.h> 83 #include <sys/smp.h> 84 #include <machine/smp.h> 85 #include <sys/sbuf.h> 86 87 #include "ixgbe_api.h" 88 #include "ixgbe_common.h" 89 #include "ixgbe_phy.h" 90 #include "ixgbe_vf.h" 91 #include "ixgbe_features.h" 92 93 /* Tunables */ 94 95 /* 96 * TxDescriptors Valid Range: 64-4096 Default Value: 256 This value is the 97 * number of transmit descriptors allocated by the driver. Increasing this 98 * value allows the driver to queue more transmits. Each descriptor is 16 99 * bytes. Performance tests have show the 2K value to be optimal for top 100 * performance. 101 */ 102 #define DEFAULT_TXD 2048 103 #define PERFORM_TXD 2048 104 #define MAX_TXD 4096 105 #define MIN_TXD 64 106 107 /* 108 * RxDescriptors Valid Range: 64-4096 Default Value: 256 This value is the 109 * number of receive descriptors allocated for each RX queue. Increasing this 110 * value allows the driver to buffer more incoming packets. Each descriptor 111 * is 16 bytes. A receive buffer is also allocated for each descriptor. 112 * 113 * Note: with 8 rings and a dual port card, it is possible to bump up 114 * against the system mbuf pool limit, you can tune nmbclusters 115 * to adjust for this. 116 */ 117 #define DEFAULT_RXD 2048 118 #define PERFORM_RXD 2048 119 #define MAX_RXD 4096 120 #define MIN_RXD 64 121 122 /* Alignment for rings */ 123 #define DBA_ALIGN 128 124 125 /* 126 * This is the max watchdog interval, ie. the time that can 127 * pass between any two TX clean operations, such only happening 128 * when the TX hardware is functioning. 129 */ 130 #define IXGBE_WATCHDOG (10 * hz) 131 132 /* 133 * This parameters control when the driver calls the routine to reclaim 134 * transmit descriptors. 135 */ 136 #define IXGBE_TX_CLEANUP_THRESHOLD(_a) ((_a)->num_tx_desc / 8) 137 #define IXGBE_TX_OP_THRESHOLD(_a) ((_a)->num_tx_desc / 32) 138 139 /* These defines are used in MTU calculations */ 140 #define IXGBE_MAX_FRAME_SIZE 9728 141 #define IXGBE_MTU_HDR (ETHER_HDR_LEN + ETHER_CRC_LEN) 142 #define IXGBE_MTU_HDR_VLAN (ETHER_HDR_LEN + ETHER_CRC_LEN + \ 143 ETHER_VLAN_ENCAP_LEN) 144 #define IXGBE_MAX_MTU (IXGBE_MAX_FRAME_SIZE - IXGBE_MTU_HDR) 145 #define IXGBE_MAX_MTU_VLAN (IXGBE_MAX_FRAME_SIZE - IXGBE_MTU_HDR_VLAN) 146 147 /* Flow control constants */ 148 #define IXGBE_FC_PAUSE 0xFFFF 149 #define IXGBE_FC_HI 0x20000 150 #define IXGBE_FC_LO 0x10000 151 152 /* 153 * Used for optimizing small rx mbufs. Effort is made to keep the copy 154 * small and aligned for the CPU L1 cache. 155 * 156 * MHLEN is typically 168 bytes, giving us 8-byte alignment. Getting 157 * 32 byte alignment needed for the fast bcopy results in 8 bytes being 158 * wasted. Getting 64 byte alignment, which _should_ be ideal for 159 * modern Intel CPUs, results in 40 bytes wasted and a significant drop 160 * in observed efficiency of the optimization, 97.9% -> 81.8%. 161 */ 162 #if __FreeBSD_version < 1002000 163 #define MPKTHSIZE (sizeof(struct m_hdr) + sizeof(struct pkthdr)) 164 #endif 165 #define IXGBE_RX_COPY_HDR_PADDED ((((MPKTHSIZE - 1) / 32) + 1) * 32) 166 #define IXGBE_RX_COPY_LEN (MSIZE - IXGBE_RX_COPY_HDR_PADDED) 167 #define IXGBE_RX_COPY_ALIGN (IXGBE_RX_COPY_HDR_PADDED - MPKTHSIZE) 168 169 /* Keep older OS drivers building... */ 170 #if !defined(SYSCTL_ADD_UQUAD) 171 #define SYSCTL_ADD_UQUAD SYSCTL_ADD_QUAD 172 #endif 173 174 /* Defines for printing debug information */ 175 #define DEBUG_INIT 0 176 #define DEBUG_IOCTL 0 177 #define DEBUG_HW 0 178 179 #define INIT_DEBUGOUT(S) if (DEBUG_INIT) printf(S "\n") 180 #define INIT_DEBUGOUT1(S, A) if (DEBUG_INIT) printf(S "\n", A) 181 #define INIT_DEBUGOUT2(S, A, B) if (DEBUG_INIT) printf(S "\n", A, B) 182 #define IOCTL_DEBUGOUT(S) if (DEBUG_IOCTL) printf(S "\n") 183 #define IOCTL_DEBUGOUT1(S, A) if (DEBUG_IOCTL) printf(S "\n", A) 184 #define IOCTL_DEBUGOUT2(S, A, B) if (DEBUG_IOCTL) printf(S "\n", A, B) 185 #define HW_DEBUGOUT(S) if (DEBUG_HW) printf(S "\n") 186 #define HW_DEBUGOUT1(S, A) if (DEBUG_HW) printf(S "\n", A) 187 #define HW_DEBUGOUT2(S, A, B) if (DEBUG_HW) printf(S "\n", A, B) 188 189 #define MAX_NUM_MULTICAST_ADDRESSES 128 190 #define IXGBE_82598_SCATTER 100 191 #define IXGBE_82599_SCATTER 32 192 #define MSIX_82598_BAR 3 193 #define MSIX_82599_BAR 4 194 #define IXGBE_TSO_SIZE 262140 195 #define IXGBE_RX_HDR 128 196 #define IXGBE_VFTA_SIZE 128 197 #define IXGBE_BR_SIZE 4096 198 #define IXGBE_QUEUE_MIN_FREE 32 199 #define IXGBE_MAX_TX_BUSY 10 200 #define IXGBE_QUEUE_HUNG 0x80000000 201 202 #define IXGBE_EITR_DEFAULT 128 203 204 /* Supported offload bits in mbuf flag */ 205 #if __FreeBSD_version >= 1000000 206 #define CSUM_OFFLOAD (CSUM_IP_TSO|CSUM_IP6_TSO|CSUM_IP| \ 207 CSUM_IP_UDP|CSUM_IP_TCP|CSUM_IP_SCTP| \ 208 CSUM_IP6_UDP|CSUM_IP6_TCP|CSUM_IP6_SCTP) 209 #elif __FreeBSD_version >= 800000 210 #define CSUM_OFFLOAD (CSUM_IP|CSUM_TCP|CSUM_UDP|CSUM_SCTP) 211 #else 212 #define CSUM_OFFLOAD (CSUM_IP|CSUM_TCP|CSUM_UDP) 213 #endif 214 215 #define IXGBE_CAPS (IFCAP_HWCSUM | IFCAP_HWCSUM_IPV6 | IFCAP_TSO | \ 216 IFCAP_LRO | IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_HWTSO | \ 217 IFCAP_VLAN_HWCSUM | IFCAP_JUMBO_MTU | IFCAP_VLAN_MTU | \ 218 IFCAP_VLAN_HWFILTER | IFCAP_WOL) 219 220 /* Backward compatibility items for very old versions */ 221 #ifndef pci_find_cap 222 #define pci_find_cap pci_find_extcap 223 #endif 224 225 #ifndef DEVMETHOD_END 226 #define DEVMETHOD_END { NULL, NULL } 227 #endif 228 229 /* 230 * Interrupt Moderation parameters 231 */ 232 #define IXGBE_LOW_LATENCY 128 233 #define IXGBE_AVE_LATENCY 400 234 #define IXGBE_BULK_LATENCY 1200 235 236 /* Using 1FF (the max value), the interval is ~1.05ms */ 237 #define IXGBE_LINK_ITR_QUANTA 0x1FF 238 #define IXGBE_LINK_ITR ((IXGBE_LINK_ITR_QUANTA << 3) & \ 239 IXGBE_EITR_ITR_INT_MASK) 240 241 242 /************************************************************************ 243 * vendor_info_array 244 * 245 * Contains the list of Subvendor/Subdevice IDs on 246 * which the driver should load. 247 ************************************************************************/ 248 typedef struct _ixgbe_vendor_info_t { 249 unsigned int vendor_id; 250 unsigned int device_id; 251 unsigned int subvendor_id; 252 unsigned int subdevice_id; 253 unsigned int index; 254 } ixgbe_vendor_info_t; 255 256 struct ixgbe_bp_data { 257 u32 low; 258 u32 high; 259 u32 log; 260 }; 261 262 263 /* 264 */ 265 struct ixgbe_dma_alloc { 266 bus_addr_t dma_paddr; 267 caddr_t dma_vaddr; 268 bus_dma_tag_t dma_tag; 269 bus_dmamap_t dma_map; 270 bus_dma_segment_t dma_seg; 271 bus_size_t dma_size; 272 int dma_nseg; 273 }; 274 275 struct ixgbe_mc_addr { 276 u8 addr[IXGBE_ETH_LENGTH_OF_ADDRESS]; 277 u32 vmdq; 278 }; 279 280 /* 281 * The transmit ring, one per queue 282 */ 283 struct tx_ring { 284 struct adapter *adapter; 285 union ixgbe_adv_tx_desc *tx_base; 286 uint64_t tx_paddr; 287 u32 tail; 288 qidx_t *tx_rsq; 289 qidx_t tx_rs_cidx; 290 qidx_t tx_rs_pidx; 291 qidx_t tx_cidx_processed; 292 uint8_t me; 293 294 /* Flow Director */ 295 u16 atr_sample; 296 u16 atr_count; 297 298 u32 bytes; /* used for AIM */ 299 u32 packets; 300 /* Soft Stats */ 301 u64 tso_tx; 302 u64 total_packets; 303 }; 304 305 306 /* 307 * The Receive ring, one per rx queue 308 */ 309 struct rx_ring { 310 struct ix_rx_queue *que; 311 struct adapter *adapter; 312 u32 me; 313 u32 tail; 314 union ixgbe_adv_rx_desc *rx_base; 315 bool hw_rsc; 316 bool vtag_strip; 317 uint64_t rx_paddr; 318 bus_dma_tag_t ptag; 319 320 u32 bytes; /* Used for AIM calc */ 321 u32 packets; 322 323 /* Soft stats */ 324 u64 rx_irq; 325 u64 rx_copies; 326 u64 rx_packets; 327 u64 rx_bytes; 328 u64 rx_discarded; 329 u64 rsc_num; 330 331 /* Flow Director */ 332 u64 flm; 333 }; 334 335 /* 336 * Driver queue struct: this is the interrupt container 337 * for the associated tx and rx ring. 338 */ 339 struct ix_rx_queue { 340 struct adapter *adapter; 341 u32 msix; /* This queue's MSIX vector */ 342 u32 eims; /* This queue's EIMS bit */ 343 u32 eitr_setting; 344 struct resource *res; 345 void *tag; 346 int busy; 347 struct rx_ring rxr; 348 struct if_irq que_irq; 349 u64 irqs; 350 }; 351 352 struct ix_tx_queue { 353 struct adapter *adapter; 354 u32 msix; /* This queue's MSIX vector */ 355 struct tx_ring txr; 356 }; 357 358 #define IXGBE_MAX_VF_MC 30 /* Max number of multicast entries */ 359 360 struct ixgbe_vf { 361 u_int pool; 362 u_int rar_index; 363 u_int maximum_frame_size; 364 uint32_t flags; 365 uint8_t ether_addr[ETHER_ADDR_LEN]; 366 uint16_t mc_hash[IXGBE_MAX_VF_MC]; 367 uint16_t num_mc_hashes; 368 uint16_t default_vlan; 369 uint16_t vlan_tag; 370 uint16_t api_ver; 371 }; 372 373 /* Our adapter structure */ 374 struct adapter { 375 struct ixgbe_hw hw; 376 struct ixgbe_osdep osdep; 377 if_ctx_t ctx; 378 if_softc_ctx_t shared; 379 #define num_tx_queues shared->isc_ntxqsets 380 #define num_rx_queues shared->isc_nrxqsets 381 #define max_frame_size shared->isc_max_frame_size 382 #define intr_type shared->isc_intr 383 384 device_t dev; 385 struct ifnet *ifp; 386 387 struct resource *pci_mem; 388 389 /* 390 * Interrupt resources: this set is 391 * either used for legacy, or for Link 392 * when doing MSI-X 393 */ 394 struct if_irq irq; 395 void *tag; 396 struct resource *res; 397 398 struct ifmedia *media; 399 int if_flags; 400 int msix; 401 402 u16 num_vlans; 403 404 /* 405 * Shadow VFTA table, this is needed because 406 * the real vlan filter table gets cleared during 407 * a soft reset and the driver needs to be able 408 * to repopulate it. 409 */ 410 u32 shadow_vfta[IXGBE_VFTA_SIZE]; 411 412 /* Info about the interface */ 413 int advertise; /* link speeds */ 414 bool link_active; 415 u16 num_segs; 416 u32 link_speed; 417 bool link_up; 418 u32 vector; 419 u16 dmac; 420 u32 phy_layer; 421 422 /* Power management-related */ 423 bool wol_support; 424 u32 wufc; 425 426 /* Mbuf cluster size */ 427 u32 rx_mbuf_sz; 428 429 /* Support for pluggable optics */ 430 bool sfp_probe; 431 struct grouptask mod_task; /* SFP tasklet */ 432 struct grouptask msf_task; /* Multispeed Fiber */ 433 struct grouptask mbx_task; /* VF -> PF mailbox interrupt */ 434 int sfp_reinit; 435 436 /* Flow Director */ 437 int fdir_reinit; 438 struct grouptask fdir_task; 439 440 struct grouptask phy_task; /* PHY intr tasklet */ 441 442 /* 443 * Queues: 444 * This is the irq holder, it has 445 * and RX/TX pair or rings associated 446 * with it. 447 */ 448 struct ix_tx_queue *tx_queues; 449 struct ix_rx_queue *rx_queues; 450 u64 active_queues; 451 452 /* Multicast array memory */ 453 struct ixgbe_mc_addr *mta; 454 455 /* SR-IOV */ 456 int iov_mode; 457 int num_vfs; 458 int pool; 459 struct ixgbe_vf *vfs; 460 461 /* Bypass */ 462 struct ixgbe_bp_data bypass; 463 464 /* Misc stats maintained by the driver */ 465 unsigned long dropped_pkts; 466 unsigned long mbuf_header_failed; 467 unsigned long mbuf_packet_failed; 468 unsigned long watchdog_events; 469 unsigned long link_irq; 470 union { 471 struct ixgbe_hw_stats pf; 472 struct ixgbevf_hw_stats vf; 473 } stats; 474 #if __FreeBSD_version >= 1100036 475 /* counter(9) stats */ 476 u64 ipackets; 477 u64 ierrors; 478 u64 opackets; 479 u64 oerrors; 480 u64 ibytes; 481 u64 obytes; 482 u64 imcasts; 483 u64 omcasts; 484 u64 iqdrops; 485 u64 noproto; 486 #endif 487 /* Feature capable/enabled flags. See ixgbe_features.h */ 488 u32 feat_cap; 489 u32 feat_en; 490 }; 491 492 /* Precision Time Sync (IEEE 1588) defines */ 493 #define ETHERTYPE_IEEE1588 0x88F7 494 #define PICOSECS_PER_TICK 20833 495 #define TSYNC_UDP_PORT 319 /* UDP port for the protocol */ 496 #define IXGBE_ADVTXD_TSTAMP 0x00080000 497 498 /* For backward compatibility */ 499 #if !defined(PCIER_LINK_STA) 500 #define PCIER_LINK_STA PCIR_EXPRESS_LINK_STA 501 #endif 502 503 /* Stats macros */ 504 #if __FreeBSD_version >= 1100036 505 #define IXGBE_SET_IPACKETS(sc, count) (sc)->ipackets = (count) 506 #define IXGBE_SET_IERRORS(sc, count) (sc)->ierrors = (count) 507 #define IXGBE_SET_OPACKETS(sc, count) (sc)->opackets = (count) 508 #define IXGBE_SET_OERRORS(sc, count) (sc)->oerrors = (count) 509 #define IXGBE_SET_COLLISIONS(sc, count) 510 #define IXGBE_SET_IBYTES(sc, count) (sc)->ibytes = (count) 511 #define IXGBE_SET_OBYTES(sc, count) (sc)->obytes = (count) 512 #define IXGBE_SET_IMCASTS(sc, count) (sc)->imcasts = (count) 513 #define IXGBE_SET_OMCASTS(sc, count) (sc)->omcasts = (count) 514 #define IXGBE_SET_IQDROPS(sc, count) (sc)->iqdrops = (count) 515 #else 516 #define IXGBE_SET_IPACKETS(sc, count) (sc)->ifp->if_ipackets = (count) 517 #define IXGBE_SET_IERRORS(sc, count) (sc)->ifp->if_ierrors = (count) 518 #define IXGBE_SET_OPACKETS(sc, count) (sc)->ifp->if_opackets = (count) 519 #define IXGBE_SET_OERRORS(sc, count) (sc)->ifp->if_oerrors = (count) 520 #define IXGBE_SET_COLLISIONS(sc, count) (sc)->ifp->if_collisions = (count) 521 #define IXGBE_SET_IBYTES(sc, count) (sc)->ifp->if_ibytes = (count) 522 #define IXGBE_SET_OBYTES(sc, count) (sc)->ifp->if_obytes = (count) 523 #define IXGBE_SET_IMCASTS(sc, count) (sc)->ifp->if_imcasts = (count) 524 #define IXGBE_SET_OMCASTS(sc, count) (sc)->ifp->if_omcasts = (count) 525 #define IXGBE_SET_IQDROPS(sc, count) (sc)->ifp->if_iqdrops = (count) 526 #endif 527 528 /* External PHY register addresses */ 529 #define IXGBE_PHY_CURRENT_TEMP 0xC820 530 #define IXGBE_PHY_OVERTEMP_STATUS 0xC830 531 532 /* Sysctl help messages; displayed with sysctl -d */ 533 #define IXGBE_SYSCTL_DESC_ADV_SPEED \ 534 "\nControl advertised link speed using these flags:\n" \ 535 "\t0x1 - advertise 100M\n" \ 536 "\t0x2 - advertise 1G\n" \ 537 "\t0x4 - advertise 10G\n" \ 538 "\t0x8 - advertise 10M\n\n" \ 539 "\t100M and 10M are only supported on certain adapters.\n" 540 541 #define IXGBE_SYSCTL_DESC_SET_FC \ 542 "\nSet flow control mode using these values:\n" \ 543 "\t0 - off\n" \ 544 "\t1 - rx pause\n" \ 545 "\t2 - tx pause\n" \ 546 "\t3 - tx and rx pause" 547 548 /* Workaround to make 8.0 buildable */ 549 #if __FreeBSD_version >= 800000 && __FreeBSD_version < 800504 550 static __inline int 551 drbr_needs_enqueue(struct ifnet *ifp, struct buf_ring *br) 552 { 553 #ifdef ALTQ 554 if (ALTQ_IS_ENABLED(&ifp->if_snd)) 555 return (1); 556 #endif 557 return (!buf_ring_empty(br)); 558 } 559 #endif 560 561 /* 562 * This checks for a zero mac addr, something that will be likely 563 * unless the Admin on the Host has created one. 564 */ 565 static inline bool 566 ixv_check_ether_addr(u8 *addr) 567 { 568 bool status = TRUE; 569 570 if ((addr[0] == 0 && addr[1]== 0 && addr[2] == 0 && 571 addr[3] == 0 && addr[4]== 0 && addr[5] == 0)) 572 status = FALSE; 573 574 return (status); 575 } 576 577 /* Shared Prototypes */ 578 579 int ixgbe_allocate_queues(struct adapter *); 580 int ixgbe_setup_transmit_structures(struct adapter *); 581 void ixgbe_free_transmit_structures(struct adapter *); 582 int ixgbe_setup_receive_structures(struct adapter *); 583 void ixgbe_free_receive_structures(struct adapter *); 584 int ixgbe_get_regs(SYSCTL_HANDLER_ARGS); 585 586 #include "ixgbe_bypass.h" 587 #include "ixgbe_fdir.h" 588 #include "ixgbe_rss.h" 589 590 #endif /* _IXGBE_H_ */ 591