if_igb.h revision 211913
1/****************************************************************************** 2 3 Copyright (c) 2001-2010, Intel Corporation 4 All rights reserved. 5 6 Redistribution and use in source and binary forms, with or without 7 modification, are permitted provided that the following conditions are met: 8 9 1. Redistributions of source code must retain the above copyright notice, 10 this list of conditions and the following disclaimer. 11 12 2. Redistributions in binary form must reproduce the above copyright 13 notice, this list of conditions and the following disclaimer in the 14 documentation and/or other materials provided with the distribution. 15 16 3. Neither the name of the Intel Corporation nor the names of its 17 contributors may be used to endorse or promote products derived from 18 this software without specific prior written permission. 19 20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 24 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 POSSIBILITY OF SUCH DAMAGE. 31 32******************************************************************************/ 33/*$FreeBSD: head/sys/dev/e1000/if_igb.h 211913 2010-08-28 00:34:22Z yongari $*/ 34 35#ifndef _IGB_H_DEFINED_ 36#define _IGB_H_DEFINED_ 37 38/* Tunables */ 39 40/* 41 * IGB_TXD: Maximum number of Transmit Descriptors 42 * 43 * This value is the number of transmit descriptors allocated by the driver. 44 * Increasing this value allows the driver to queue more transmits. Each 45 * descriptor is 16 bytes. 46 * Since TDLEN should be multiple of 128bytes, the number of transmit 47 * desscriptors should meet the following condition. 48 * (num_tx_desc * sizeof(struct e1000_tx_desc)) % 128 == 0 49 */ 50#define IGB_MIN_TXD 256 51#define IGB_DEFAULT_TXD 1024 52#define IGB_MAX_TXD 4096 53 54/* 55 * IGB_RXD: Maximum number of Transmit Descriptors 56 * 57 * This value is the number of receive descriptors allocated by the driver. 58 * Increasing this value allows the driver to buffer more incoming packets. 59 * Each descriptor is 16 bytes. A receive buffer is also allocated for each 60 * descriptor. The maximum MTU size is 16110. 61 * Since TDLEN should be multiple of 128bytes, the number of transmit 62 * desscriptors should meet the following condition. 63 * (num_tx_desc * sizeof(struct e1000_tx_desc)) % 128 == 0 64 */ 65#define IGB_MIN_RXD 256 66#define IGB_DEFAULT_RXD 1024 67#define IGB_MAX_RXD 4096 68 69/* 70 * IGB_TIDV - Transmit Interrupt Delay Value 71 * Valid Range: 0-65535 (0=off) 72 * Default Value: 64 73 * This value delays the generation of transmit interrupts in units of 74 * 1.024 microseconds. Transmit interrupt reduction can improve CPU 75 * efficiency if properly tuned for specific network traffic. If the 76 * system is reporting dropped transmits, this value may be set too high 77 * causing the driver to run out of available transmit descriptors. 78 */ 79#define IGB_TIDV 64 80 81/* 82 * IGB_TADV - Transmit Absolute Interrupt Delay Value 83 * Valid Range: 0-65535 (0=off) 84 * Default Value: 64 85 * This value, in units of 1.024 microseconds, limits the delay in which a 86 * transmit interrupt is generated. Useful only if IGB_TIDV is non-zero, 87 * this value ensures that an interrupt is generated after the initial 88 * packet is sent on the wire within the set amount of time. Proper tuning, 89 * along with IGB_TIDV, may improve traffic throughput in specific 90 * network conditions. 91 */ 92#define IGB_TADV 64 93 94/* 95 * IGB_RDTR - Receive Interrupt Delay Timer (Packet Timer) 96 * Valid Range: 0-65535 (0=off) 97 * Default Value: 0 98 * This value delays the generation of receive interrupts in units of 1.024 99 * microseconds. Receive interrupt reduction can improve CPU efficiency if 100 * properly tuned for specific network traffic. Increasing this value adds 101 * extra latency to frame reception and can end up decreasing the throughput 102 * of TCP traffic. If the system is reporting dropped receives, this value 103 * may be set too high, causing the driver to run out of available receive 104 * descriptors. 105 * 106 * CAUTION: When setting IGB_RDTR to a value other than 0, adapters 107 * may hang (stop transmitting) under certain network conditions. 108 * If this occurs a WATCHDOG message is logged in the system 109 * event log. In addition, the controller is automatically reset, 110 * restoring the network connection. To eliminate the potential 111 * for the hang ensure that IGB_RDTR is set to 0. 112 */ 113#define IGB_RDTR 0 114 115/* 116 * Receive Interrupt Absolute Delay Timer (Not valid for 82542/82543/82544) 117 * Valid Range: 0-65535 (0=off) 118 * Default Value: 64 119 * This value, in units of 1.024 microseconds, limits the delay in which a 120 * receive interrupt is generated. Useful only if IGB_RDTR is non-zero, 121 * this value ensures that an interrupt is generated after the initial 122 * packet is received within the set amount of time. Proper tuning, 123 * along with IGB_RDTR, may improve traffic throughput in specific network 124 * conditions. 125 */ 126#define IGB_RADV 64 127 128/* 129 * This parameter controls the duration of transmit watchdog timer. 130 */ 131#define IGB_WATCHDOG (10 * hz) 132 133/* 134 * This parameter controls when the driver calls the routine to reclaim 135 * transmit descriptors. 136 */ 137#define IGB_TX_CLEANUP_THRESHOLD (adapter->num_tx_desc / 8) 138#define IGB_TX_OP_THRESHOLD (adapter->num_tx_desc / 32) 139 140/* 141 * This parameter controls whether or not autonegotation is enabled. 142 * 0 - Disable autonegotiation 143 * 1 - Enable autonegotiation 144 */ 145#define DO_AUTO_NEG 1 146 147/* 148 * This parameter control whether or not the driver will wait for 149 * autonegotiation to complete. 150 * 1 - Wait for autonegotiation to complete 151 * 0 - Don't wait for autonegotiation to complete 152 */ 153#define WAIT_FOR_AUTO_NEG_DEFAULT 0 154 155/* Tunables -- End */ 156 157#define AUTONEG_ADV_DEFAULT (ADVERTISE_10_HALF | ADVERTISE_10_FULL | \ 158 ADVERTISE_100_HALF | ADVERTISE_100_FULL | \ 159 ADVERTISE_1000_FULL) 160 161#define AUTO_ALL_MODES 0 162 163/* PHY master/slave setting */ 164#define IGB_MASTER_SLAVE e1000_ms_hw_default 165 166/* 167 * Micellaneous constants 168 */ 169#define IGB_VENDOR_ID 0x8086 170 171#define IGB_JUMBO_PBA 0x00000028 172#define IGB_DEFAULT_PBA 0x00000030 173#define IGB_SMARTSPEED_DOWNSHIFT 3 174#define IGB_SMARTSPEED_MAX 15 175#define IGB_MAX_LOOP 10 176 177#define IGB_RX_PTHRESH (hw->mac.type <= e1000_82576 ? 16 : 8) 178#define IGB_RX_HTHRESH 8 179#define IGB_RX_WTHRESH 1 180 181#define IGB_TX_PTHRESH 8 182#define IGB_TX_HTHRESH 1 183#define IGB_TX_WTHRESH (((hw->mac.type == e1000_82576 || \ 184 hw->mac.type == e1000_vfadapt) && \ 185 adapter->msix_mem) ? 1 : 16) 186 187#define MAX_NUM_MULTICAST_ADDRESSES 128 188#define PCI_ANY_ID (~0U) 189#define ETHER_ALIGN 2 190#define IGB_TX_BUFFER_SIZE ((uint32_t) 1514) 191#define IGB_FC_PAUSE_TIME 0x0680 192#define IGB_EEPROM_APME 0x400; 193 194/* 195 * TDBA/RDBA should be aligned on 16 byte boundary. But TDLEN/RDLEN should be 196 * multiple of 128 bytes. So we align TDBA/RDBA on 128 byte boundary. This will 197 * also optimize cache line size effect. H/W supports up to cache line size 128. 198 */ 199#define IGB_DBA_ALIGN 128 200 201#define SPEED_MODE_BIT (1<<21) /* On PCI-E MACs only */ 202 203/* PCI Config defines */ 204#define IGB_MSIX_BAR 3 205 206/* 207** This is the total number of MSIX vectors you wish 208** to use, it also controls the size of resources. 209** The 82575 has a total of 10, 82576 has 25. Set this 210** to the real amount you need to streamline data storage. 211*/ 212#define IGB_MSIX_VEC 6 /* MSIX vectors configured */ 213 214/* Defines for printing debug information */ 215#define DEBUG_INIT 0 216#define DEBUG_IOCTL 0 217#define DEBUG_HW 0 218 219#define INIT_DEBUGOUT(S) if (DEBUG_INIT) printf(S "\n") 220#define INIT_DEBUGOUT1(S, A) if (DEBUG_INIT) printf(S "\n", A) 221#define INIT_DEBUGOUT2(S, A, B) if (DEBUG_INIT) printf(S "\n", A, B) 222#define IOCTL_DEBUGOUT(S) if (DEBUG_IOCTL) printf(S "\n") 223#define IOCTL_DEBUGOUT1(S, A) if (DEBUG_IOCTL) printf(S "\n", A) 224#define IOCTL_DEBUGOUT2(S, A, B) if (DEBUG_IOCTL) printf(S "\n", A, B) 225#define HW_DEBUGOUT(S) if (DEBUG_HW) printf(S "\n") 226#define HW_DEBUGOUT1(S, A) if (DEBUG_HW) printf(S "\n", A) 227#define HW_DEBUGOUT2(S, A, B) if (DEBUG_HW) printf(S "\n", A, B) 228 229#define IGB_MAX_SCATTER 64 230#define IGB_VFTA_SIZE 128 231#define IGB_BR_SIZE 4096 /* ring buf size */ 232#define IGB_TSO_SIZE (65535 + sizeof(struct ether_vlan_header)) 233#define IGB_TSO_SEG_SIZE 4096 /* Max dma segment size */ 234#define IGB_HDR_BUF 128 235#define IGB_PKTTYPE_MASK 0x0000FFF0 236#define ETH_ZLEN 60 237#define ETH_ADDR_LEN 6 238 239/* Offload bits in mbuf flag */ 240#if __FreeBSD_version >= 800000 241#define CSUM_OFFLOAD (CSUM_IP|CSUM_TCP|CSUM_UDP|CSUM_SCTP) 242#else 243#define CSUM_OFFLOAD (CSUM_IP|CSUM_TCP|CSUM_UDP) 244#endif 245 246/* Define the starting Interrupt rate per Queue */ 247#define IGB_INTS_PER_SEC 8000 248#define IGB_DEFAULT_ITR 1000000000/(IGB_INTS_PER_SEC * 256) 249 250 251/* Header split codes for get_buf */ 252#define IGB_CLEAN_HEADER 0x01 253#define IGB_CLEAN_PAYLOAD 0x02 254#define IGB_CLEAN_BOTH (IGB_CLEAN_HEADER | IGB_CLEAN_PAYLOAD) 255 256#define IGB_LINK_ITR 2000 257 258/* Precision Time Sync (IEEE 1588) defines */ 259#define ETHERTYPE_IEEE1588 0x88F7 260#define PICOSECS_PER_TICK 20833 261#define TSYNC_PORT 319 /* UDP port for the protocol */ 262 263/* 264 * Bus dma allocation structure used by 265 * e1000_dma_malloc and e1000_dma_free. 266 */ 267struct igb_dma_alloc { 268 bus_addr_t dma_paddr; 269 caddr_t dma_vaddr; 270 bus_dma_tag_t dma_tag; 271 bus_dmamap_t dma_map; 272 bus_dma_segment_t dma_seg; 273 int dma_nseg; 274}; 275 276 277/* 278** Driver queue struct: this is the interrupt container 279** for the associated tx and rx ring. 280*/ 281struct igb_queue { 282 struct adapter *adapter; 283 u32 msix; /* This queue's MSIX vector */ 284 u32 eims; /* This queue's EIMS bit */ 285 u32 eitr_setting; 286 struct resource *res; 287 void *tag; 288 struct tx_ring *txr; 289 struct rx_ring *rxr; 290 struct task que_task; 291 struct taskqueue *tq; 292 u64 irqs; 293}; 294 295/* 296 * Transmit ring: one per queue 297 */ 298struct tx_ring { 299 struct adapter *adapter; 300 u32 me; 301 struct mtx tx_mtx; 302 char mtx_name[16]; 303 struct igb_dma_alloc txdma; 304 struct e1000_tx_desc *tx_base; 305 u32 next_avail_desc; 306 u32 next_to_clean; 307 volatile u16 tx_avail; 308 struct igb_tx_buffer *tx_buffers; 309#if __FreeBSD_version >= 800000 310 struct buf_ring *br; 311#endif 312 bus_dma_tag_t txtag; 313 314 u32 bytes; 315 u32 packets; 316 317 bool watchdog_check; 318 int watchdog_time; 319 int tdt; 320 int tdh; 321 u64 no_desc_avail; 322 u64 tx_packets; 323}; 324 325/* 326 * Receive ring: one per queue 327 */ 328struct rx_ring { 329 struct adapter *adapter; 330 u32 me; 331 struct igb_dma_alloc rxdma; 332 union e1000_adv_rx_desc *rx_base; 333 struct lro_ctrl lro; 334 bool lro_enabled; 335 bool hdr_split; 336 bool discard; 337 struct mtx rx_mtx; 338 char mtx_name[16]; 339 u32 next_to_refresh; 340 u32 next_to_check; 341 struct igb_rx_buf *rx_buffers; 342 bus_dma_tag_t htag; /* dma tag for rx head */ 343 bus_dma_tag_t ptag; /* dma tag for rx packet */ 344 /* 345 * First/last mbuf pointers, for 346 * collecting multisegment RX packets. 347 */ 348 struct mbuf *fmp; 349 struct mbuf *lmp; 350 351 u32 bytes; 352 u32 packets; 353 int rdt; 354 int rdh; 355 356 /* Soft stats */ 357 u64 rx_split_packets; 358 u64 rx_discarded; 359 u64 rx_packets; 360 u64 rx_bytes; 361}; 362 363struct adapter { 364 struct ifnet *ifp; 365 struct e1000_hw hw; 366 367 struct e1000_osdep osdep; 368 struct device *dev; 369 struct cdev *led_dev; 370 371 struct resource *pci_mem; 372 struct resource *msix_mem; 373 struct resource *res; 374 void *tag; 375 u32 eims_mask; 376 377 int linkvec; 378 int link_mask; 379 struct task link_task; 380 int link_irq; 381 382 struct ifmedia media; 383 struct callout timer; 384 int msix; /* total vectors allocated */ 385 int if_flags; 386 int max_frame_size; 387 int min_frame_size; 388 struct mtx core_mtx; 389 int igb_insert_vlan_header; 390 u16 num_queues; 391 392 eventhandler_tag vlan_attach; 393 eventhandler_tag vlan_detach; 394 u32 num_vlans; 395 396 /* Management and WOL features */ 397 int wol; 398 int has_manage; 399 400 /* Info about the board itself */ 401 u8 link_active; 402 u16 link_speed; 403 u16 link_duplex; 404 u32 smartspeed; 405 406 /* Interface queues */ 407 struct igb_queue *queues; 408 409 /* 410 * Transmit rings 411 */ 412 struct tx_ring *tx_rings; 413 u16 num_tx_desc; 414 415 /* 416 * Receive rings 417 */ 418 struct rx_ring *rx_rings; 419 bool rx_hdr_split; 420 u16 num_rx_desc; 421 int rx_process_limit; 422 u32 rx_mbuf_sz; 423 u32 rx_mask; 424 425 /* Multicast array memory */ 426 u8 *mta; 427 /* Misc stats maintained by the driver */ 428 unsigned long dropped_pkts; 429 unsigned long mbuf_defrag_failed; 430 unsigned long mbuf_header_failed; 431 unsigned long mbuf_packet_failed; 432 unsigned long no_tx_map_avail; 433 unsigned long no_tx_dma_setup; 434 unsigned long watchdog_events; 435 unsigned long rx_overruns; 436 unsigned long device_control; 437 unsigned long rx_control; 438 unsigned long int_mask; 439 unsigned long eint_mask; 440 unsigned long packet_buf_alloc_rx; 441 unsigned long packet_buf_alloc_tx; 442 443 boolean_t in_detach; 444 445#ifdef IGB_IEEE1588 446 /* IEEE 1588 precision time support */ 447 struct cyclecounter cycles; 448 struct nettimer clock; 449 struct nettime_compare compare; 450 struct hwtstamp_ctrl hwtstamp; 451#endif 452 453 void *stats; 454}; 455 456/* ****************************************************************************** 457 * vendor_info_array 458 * 459 * This array contains the list of Subvendor/Subdevice IDs on which the driver 460 * should load. 461 * 462 * ******************************************************************************/ 463typedef struct _igb_vendor_info_t { 464 unsigned int vendor_id; 465 unsigned int device_id; 466 unsigned int subvendor_id; 467 unsigned int subdevice_id; 468 unsigned int index; 469} igb_vendor_info_t; 470 471 472struct igb_tx_buffer { 473 int next_eop; /* Index of the desc to watch */ 474 struct mbuf *m_head; 475 bus_dmamap_t map; /* bus_dma map for packet */ 476}; 477 478struct igb_rx_buf { 479 struct mbuf *m_head; 480 struct mbuf *m_pack; 481 bus_dmamap_t hmap; /* bus_dma map for header */ 482 bus_dmamap_t pmap; /* bus_dma map for packet */ 483}; 484 485#define IGB_CORE_LOCK_INIT(_sc, _name) \ 486 mtx_init(&(_sc)->core_mtx, _name, "IGB Core Lock", MTX_DEF) 487#define IGB_CORE_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->core_mtx) 488#define IGB_CORE_LOCK(_sc) mtx_lock(&(_sc)->core_mtx) 489#define IGB_CORE_UNLOCK(_sc) mtx_unlock(&(_sc)->core_mtx) 490#define IGB_CORE_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->core_mtx, MA_OWNED) 491 492#define IGB_TX_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->tx_mtx) 493#define IGB_TX_LOCK(_sc) mtx_lock(&(_sc)->tx_mtx) 494#define IGB_TX_UNLOCK(_sc) mtx_unlock(&(_sc)->tx_mtx) 495#define IGB_TX_TRYLOCK(_sc) mtx_trylock(&(_sc)->tx_mtx) 496#define IGB_TX_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->tx_mtx, MA_OWNED) 497 498#define IGB_RX_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->rx_mtx) 499#define IGB_RX_LOCK(_sc) mtx_lock(&(_sc)->rx_mtx) 500#define IGB_RX_UNLOCK(_sc) mtx_unlock(&(_sc)->rx_mtx) 501#define IGB_RX_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->rx_mtx, MA_OWNED) 502 503#define UPDATE_VF_REG(reg, last, cur) \ 504{ \ 505 u32 new = E1000_READ_REG(hw, reg); \ 506 if (new < last) \ 507 cur += 0x100000000LL; \ 508 last = new; \ 509 cur &= 0xFFFFFFFF00000000LL; \ 510 cur |= new; \ 511} 512 513#if __FreeBSD_version < 800504 514static __inline int 515drbr_needs_enqueue(struct ifnet *ifp, struct buf_ring *br) 516{ 517#ifdef ALTQ 518 if (ALTQ_IS_ENABLED(&ifp->if_snd)) 519 return (1); 520#endif 521 return (!buf_ring_empty(br)); 522} 523#endif 524 525#endif /* _IGB_H_DEFINED_ */ 526 527 528