1 /* 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2016 Alexander Motin <mav@FreeBSD.org> 5 * Copyright (c) 2015 Peter Grehan <grehan@freebsd.org> 6 * Copyright (c) 2013 Jeremiah Lott, Avere Systems 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer 14 * in this position and unchanged. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 #include <sys/types.h> 36 #ifndef WITHOUT_CAPSICUM 37 #include <sys/capsicum.h> 38 #endif 39 #include <sys/limits.h> 40 #include <sys/ioctl.h> 41 #include <sys/uio.h> 42 #include <net/ethernet.h> 43 #include <netinet/in.h> 44 #include <netinet/tcp.h> 45 46 #ifndef WITHOUT_CAPSICUM 47 #include <capsicum_helpers.h> 48 #endif 49 50 #include <err.h> 51 #include <errno.h> 52 #include <fcntl.h> 53 #include <md5.h> 54 #include <stdio.h> 55 #include <stdlib.h> 56 #include <string.h> 57 #include <sysexits.h> 58 #include <unistd.h> 59 #include <pthread.h> 60 #include <pthread_np.h> 61 62 #include "e1000_regs.h" 63 #include "e1000_defines.h" 64 #include "mii.h" 65 66 #include "bhyverun.h" 67 #include "config.h" 68 #include "debug.h" 69 #include "pci_emul.h" 70 #ifdef BHYVE_SNAPSHOT 71 #include "snapshot.h" 72 #endif 73 #include "mevent.h" 74 #include "net_utils.h" 75 #include "net_backends.h" 76 77 /* Hardware/register definitions XXX: move some to common code. */ 78 #define E82545_VENDOR_ID_INTEL 0x8086 79 #define E82545_DEV_ID_82545EM_COPPER 0x100F 80 #define E82545_SUBDEV_ID 0x1008 81 82 #define E82545_REVISION_4 4 83 84 #define E82545_MDIC_DATA_MASK 0x0000FFFF 85 #define E82545_MDIC_OP_MASK 0x0c000000 86 #define E82545_MDIC_IE 0x20000000 87 88 #define E82545_EECD_FWE_DIS 0x00000010 /* Flash writes disabled */ 89 #define E82545_EECD_FWE_EN 0x00000020 /* Flash writes enabled */ 90 #define E82545_EECD_FWE_MASK 0x00000030 /* Flash writes mask */ 91 92 #define E82545_BAR_REGISTER 0 93 #define E82545_BAR_REGISTER_LEN (128*1024) 94 #define E82545_BAR_FLASH 1 95 #define E82545_BAR_FLASH_LEN (64*1024) 96 #define E82545_BAR_IO 2 97 #define E82545_BAR_IO_LEN 8 98 99 #define E82545_IOADDR 0x00000000 100 #define E82545_IODATA 0x00000004 101 #define E82545_IO_REGISTER_MAX 0x0001FFFF 102 #define E82545_IO_FLASH_BASE 0x00080000 103 #define E82545_IO_FLASH_MAX 0x000FFFFF 104 105 #define E82545_ARRAY_ENTRY(reg, offset) (reg + (offset<<2)) 106 #define E82545_RAR_MAX 15 107 #define E82545_MTA_MAX 127 108 #define E82545_VFTA_MAX 127 109 110 /* Slightly modified from the driver versions, hardcoded for 3 opcode bits, 111 * followed by 6 address bits. 112 * TODO: make opcode bits and addr bits configurable? 113 * NVM Commands - Microwire */ 114 #define E82545_NVM_OPCODE_BITS 3 115 #define E82545_NVM_ADDR_BITS 6 116 #define E82545_NVM_DATA_BITS 16 117 #define E82545_NVM_OPADDR_BITS (E82545_NVM_OPCODE_BITS + E82545_NVM_ADDR_BITS) 118 #define E82545_NVM_ADDR_MASK ((1 << E82545_NVM_ADDR_BITS)-1) 119 #define E82545_NVM_OPCODE_MASK \ 120 (((1 << E82545_NVM_OPCODE_BITS) - 1) << E82545_NVM_ADDR_BITS) 121 #define E82545_NVM_OPCODE_READ (0x6 << E82545_NVM_ADDR_BITS) /* read */ 122 #define E82545_NVM_OPCODE_WRITE (0x5 << E82545_NVM_ADDR_BITS) /* write */ 123 #define E82545_NVM_OPCODE_ERASE (0x7 << E82545_NVM_ADDR_BITS) /* erase */ 124 #define E82545_NVM_OPCODE_EWEN (0x4 << E82545_NVM_ADDR_BITS) /* wr-enable */ 125 126 #define E82545_NVM_EEPROM_SIZE 64 /* 64 * 16-bit values == 128K */ 127 128 #define E1000_ICR_SRPD 0x00010000 129 130 /* This is an arbitrary number. There is no hard limit on the chip. */ 131 #define I82545_MAX_TXSEGS 64 132 133 /* Legacy receive descriptor */ 134 struct e1000_rx_desc { 135 uint64_t buffer_addr; /* Address of the descriptor's data buffer */ 136 uint16_t length; /* Length of data DMAed into data buffer */ 137 uint16_t csum; /* Packet checksum */ 138 uint8_t status; /* Descriptor status */ 139 uint8_t errors; /* Descriptor Errors */ 140 uint16_t special; 141 }; 142 143 /* Transmit descriptor types */ 144 #define E1000_TXD_MASK (E1000_TXD_CMD_DEXT | 0x00F00000) 145 #define E1000_TXD_TYP_L (0) 146 #define E1000_TXD_TYP_C (E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_C) 147 #define E1000_TXD_TYP_D (E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D) 148 149 /* Legacy transmit descriptor */ 150 struct e1000_tx_desc { 151 uint64_t buffer_addr; /* Address of the descriptor's data buffer */ 152 union { 153 uint32_t data; 154 struct { 155 uint16_t length; /* Data buffer length */ 156 uint8_t cso; /* Checksum offset */ 157 uint8_t cmd; /* Descriptor control */ 158 } flags; 159 } lower; 160 union { 161 uint32_t data; 162 struct { 163 uint8_t status; /* Descriptor status */ 164 uint8_t css; /* Checksum start */ 165 uint16_t special; 166 } fields; 167 } upper; 168 }; 169 170 /* Context descriptor */ 171 struct e1000_context_desc { 172 union { 173 uint32_t ip_config; 174 struct { 175 uint8_t ipcss; /* IP checksum start */ 176 uint8_t ipcso; /* IP checksum offset */ 177 uint16_t ipcse; /* IP checksum end */ 178 } ip_fields; 179 } lower_setup; 180 union { 181 uint32_t tcp_config; 182 struct { 183 uint8_t tucss; /* TCP checksum start */ 184 uint8_t tucso; /* TCP checksum offset */ 185 uint16_t tucse; /* TCP checksum end */ 186 } tcp_fields; 187 } upper_setup; 188 uint32_t cmd_and_length; 189 union { 190 uint32_t data; 191 struct { 192 uint8_t status; /* Descriptor status */ 193 uint8_t hdr_len; /* Header length */ 194 uint16_t mss; /* Maximum segment size */ 195 } fields; 196 } tcp_seg_setup; 197 }; 198 199 /* Data descriptor */ 200 struct e1000_data_desc { 201 uint64_t buffer_addr; /* Address of the descriptor's buffer address */ 202 union { 203 uint32_t data; 204 struct { 205 uint16_t length; /* Data buffer length */ 206 uint8_t typ_len_ext; 207 uint8_t cmd; 208 } flags; 209 } lower; 210 union { 211 uint32_t data; 212 struct { 213 uint8_t status; /* Descriptor status */ 214 uint8_t popts; /* Packet Options */ 215 uint16_t special; 216 } fields; 217 } upper; 218 }; 219 220 union e1000_tx_udesc { 221 struct e1000_tx_desc td; 222 struct e1000_context_desc cd; 223 struct e1000_data_desc dd; 224 }; 225 226 /* Tx checksum info for a packet. */ 227 struct ck_info { 228 int ck_valid; /* ck_info is valid */ 229 uint8_t ck_start; /* start byte of cksum calcuation */ 230 uint8_t ck_off; /* offset of cksum insertion */ 231 uint16_t ck_len; /* length of cksum calc: 0 is to packet-end */ 232 }; 233 234 /* 235 * Debug printf 236 */ 237 static int e82545_debug = 0; 238 #define WPRINTF(msg,params...) PRINTLN("e82545: " msg, ##params) 239 #define DPRINTF(msg,params...) if (e82545_debug) WPRINTF(msg, params) 240 241 #define MIN(a,b) (((a)<(b))?(a):(b)) 242 #define MAX(a,b) (((a)>(b))?(a):(b)) 243 244 /* s/w representation of the RAL/RAH regs */ 245 struct eth_uni { 246 int eu_valid; 247 int eu_addrsel; 248 struct ether_addr eu_eth; 249 }; 250 251 252 struct e82545_softc { 253 struct pci_devinst *esc_pi; 254 struct vmctx *esc_ctx; 255 struct mevent *esc_mevpitr; 256 pthread_mutex_t esc_mtx; 257 struct ether_addr esc_mac; 258 net_backend_t *esc_be; 259 260 /* General */ 261 uint32_t esc_CTRL; /* x0000 device ctl */ 262 uint32_t esc_FCAL; /* x0028 flow ctl addr lo */ 263 uint32_t esc_FCAH; /* x002C flow ctl addr hi */ 264 uint32_t esc_FCT; /* x0030 flow ctl type */ 265 uint32_t esc_VET; /* x0038 VLAN eth type */ 266 uint32_t esc_FCTTV; /* x0170 flow ctl tx timer */ 267 uint32_t esc_LEDCTL; /* x0E00 LED control */ 268 uint32_t esc_PBA; /* x1000 pkt buffer allocation */ 269 270 /* Interrupt control */ 271 int esc_irq_asserted; 272 uint32_t esc_ICR; /* x00C0 cause read/clear */ 273 uint32_t esc_ITR; /* x00C4 intr throttling */ 274 uint32_t esc_ICS; /* x00C8 cause set */ 275 uint32_t esc_IMS; /* x00D0 mask set/read */ 276 uint32_t esc_IMC; /* x00D8 mask clear */ 277 278 /* Transmit */ 279 union e1000_tx_udesc *esc_txdesc; 280 struct e1000_context_desc esc_txctx; 281 pthread_t esc_tx_tid; 282 pthread_cond_t esc_tx_cond; 283 int esc_tx_enabled; 284 int esc_tx_active; 285 uint32_t esc_TXCW; /* x0178 transmit config */ 286 uint32_t esc_TCTL; /* x0400 transmit ctl */ 287 uint32_t esc_TIPG; /* x0410 inter-packet gap */ 288 uint16_t esc_AIT; /* x0458 Adaptive Interframe Throttle */ 289 uint64_t esc_tdba; /* verified 64-bit desc table addr */ 290 uint32_t esc_TDBAL; /* x3800 desc table addr, low bits */ 291 uint32_t esc_TDBAH; /* x3804 desc table addr, hi 32-bits */ 292 uint32_t esc_TDLEN; /* x3808 # descriptors in bytes */ 293 uint16_t esc_TDH; /* x3810 desc table head idx */ 294 uint16_t esc_TDHr; /* internal read version of TDH */ 295 uint16_t esc_TDT; /* x3818 desc table tail idx */ 296 uint32_t esc_TIDV; /* x3820 intr delay */ 297 uint32_t esc_TXDCTL; /* x3828 desc control */ 298 uint32_t esc_TADV; /* x382C intr absolute delay */ 299 300 /* L2 frame acceptance */ 301 struct eth_uni esc_uni[16]; /* 16 x unicast MAC addresses */ 302 uint32_t esc_fmcast[128]; /* Multicast filter bit-match */ 303 uint32_t esc_fvlan[128]; /* VLAN 4096-bit filter */ 304 305 /* Receive */ 306 struct e1000_rx_desc *esc_rxdesc; 307 pthread_cond_t esc_rx_cond; 308 int esc_rx_enabled; 309 int esc_rx_active; 310 int esc_rx_loopback; 311 uint32_t esc_RCTL; /* x0100 receive ctl */ 312 uint32_t esc_FCRTL; /* x2160 flow cntl thresh, low */ 313 uint32_t esc_FCRTH; /* x2168 flow cntl thresh, hi */ 314 uint64_t esc_rdba; /* verified 64-bit desc table addr */ 315 uint32_t esc_RDBAL; /* x2800 desc table addr, low bits */ 316 uint32_t esc_RDBAH; /* x2804 desc table addr, hi 32-bits*/ 317 uint32_t esc_RDLEN; /* x2808 #descriptors */ 318 uint16_t esc_RDH; /* x2810 desc table head idx */ 319 uint16_t esc_RDT; /* x2818 desc table tail idx */ 320 uint32_t esc_RDTR; /* x2820 intr delay */ 321 uint32_t esc_RXDCTL; /* x2828 desc control */ 322 uint32_t esc_RADV; /* x282C intr absolute delay */ 323 uint32_t esc_RSRPD; /* x2C00 recv small packet detect */ 324 uint32_t esc_RXCSUM; /* x5000 receive cksum ctl */ 325 326 /* IO Port register access */ 327 uint32_t io_addr; 328 329 /* Shadow copy of MDIC */ 330 uint32_t mdi_control; 331 /* Shadow copy of EECD */ 332 uint32_t eeprom_control; 333 /* Latest NVM in/out */ 334 uint16_t nvm_data; 335 uint16_t nvm_opaddr; 336 /* stats */ 337 uint32_t missed_pkt_count; /* dropped for no room in rx queue */ 338 uint32_t pkt_rx_by_size[6]; 339 uint32_t pkt_tx_by_size[6]; 340 uint32_t good_pkt_rx_count; 341 uint32_t bcast_pkt_rx_count; 342 uint32_t mcast_pkt_rx_count; 343 uint32_t good_pkt_tx_count; 344 uint32_t bcast_pkt_tx_count; 345 uint32_t mcast_pkt_tx_count; 346 uint32_t oversize_rx_count; 347 uint32_t tso_tx_count; 348 uint64_t good_octets_rx; 349 uint64_t good_octets_tx; 350 uint64_t missed_octets; /* counts missed and oversized */ 351 352 uint8_t nvm_bits:6; /* number of bits remaining in/out */ 353 uint8_t nvm_mode:2; 354 #define E82545_NVM_MODE_OPADDR 0x0 355 #define E82545_NVM_MODE_DATAIN 0x1 356 #define E82545_NVM_MODE_DATAOUT 0x2 357 /* EEPROM data */ 358 uint16_t eeprom_data[E82545_NVM_EEPROM_SIZE]; 359 }; 360 361 static void e82545_reset(struct e82545_softc *sc, int dev); 362 static void e82545_rx_enable(struct e82545_softc *sc); 363 static void e82545_rx_disable(struct e82545_softc *sc); 364 static void e82545_rx_callback(int fd, enum ev_type type, void *param); 365 static void e82545_tx_start(struct e82545_softc *sc); 366 static void e82545_tx_enable(struct e82545_softc *sc); 367 static void e82545_tx_disable(struct e82545_softc *sc); 368 369 static inline int __unused 370 e82545_size_stat_index(uint32_t size) 371 { 372 if (size <= 64) { 373 return 0; 374 } else if (size >= 1024) { 375 return 5; 376 } else { 377 /* should be 1-4 */ 378 return (ffs(size) - 6); 379 } 380 } 381 382 static void 383 e82545_init_eeprom(struct e82545_softc *sc) 384 { 385 uint16_t checksum, i; 386 387 /* mac addr */ 388 sc->eeprom_data[NVM_MAC_ADDR] = ((uint16_t)sc->esc_mac.octet[0]) | 389 (((uint16_t)sc->esc_mac.octet[1]) << 8); 390 sc->eeprom_data[NVM_MAC_ADDR+1] = ((uint16_t)sc->esc_mac.octet[2]) | 391 (((uint16_t)sc->esc_mac.octet[3]) << 8); 392 sc->eeprom_data[NVM_MAC_ADDR+2] = ((uint16_t)sc->esc_mac.octet[4]) | 393 (((uint16_t)sc->esc_mac.octet[5]) << 8); 394 395 /* pci ids */ 396 sc->eeprom_data[NVM_SUB_DEV_ID] = E82545_SUBDEV_ID; 397 sc->eeprom_data[NVM_SUB_VEN_ID] = E82545_VENDOR_ID_INTEL; 398 sc->eeprom_data[NVM_DEV_ID] = E82545_DEV_ID_82545EM_COPPER; 399 sc->eeprom_data[NVM_VEN_ID] = E82545_VENDOR_ID_INTEL; 400 401 /* fill in the checksum */ 402 checksum = 0; 403 for (i = 0; i < NVM_CHECKSUM_REG; i++) { 404 checksum += sc->eeprom_data[i]; 405 } 406 checksum = NVM_SUM - checksum; 407 sc->eeprom_data[NVM_CHECKSUM_REG] = checksum; 408 DPRINTF("eeprom checksum: 0x%x", checksum); 409 } 410 411 static void 412 e82545_write_mdi(struct e82545_softc *sc __unused, uint8_t reg_addr, 413 uint8_t phy_addr, uint32_t data) 414 { 415 DPRINTF("Write mdi reg:0x%x phy:0x%x data: 0x%x", reg_addr, phy_addr, data); 416 } 417 418 static uint32_t 419 e82545_read_mdi(struct e82545_softc *sc __unused, uint8_t reg_addr, 420 uint8_t phy_addr) 421 { 422 //DPRINTF("Read mdi reg:0x%x phy:0x%x", reg_addr, phy_addr); 423 switch (reg_addr) { 424 case PHY_STATUS: 425 return (MII_SR_LINK_STATUS | MII_SR_AUTONEG_CAPS | 426 MII_SR_AUTONEG_COMPLETE); 427 case PHY_AUTONEG_ADV: 428 return NWAY_AR_SELECTOR_FIELD; 429 case PHY_LP_ABILITY: 430 return 0; 431 case PHY_1000T_STATUS: 432 return (SR_1000T_LP_FD_CAPS | SR_1000T_REMOTE_RX_STATUS | 433 SR_1000T_LOCAL_RX_STATUS); 434 case PHY_ID1: 435 return (M88E1011_I_PHY_ID >> 16) & 0xFFFF; 436 case PHY_ID2: 437 return (M88E1011_I_PHY_ID | E82545_REVISION_4) & 0xFFFF; 438 default: 439 DPRINTF("Unknown mdi read reg:0x%x phy:0x%x", reg_addr, phy_addr); 440 return 0; 441 } 442 /* not reached */ 443 } 444 445 static void 446 e82545_eecd_strobe(struct e82545_softc *sc) 447 { 448 /* Microwire state machine */ 449 /* 450 DPRINTF("eeprom state machine srtobe " 451 "0x%x 0x%x 0x%x 0x%x", 452 sc->nvm_mode, sc->nvm_bits, 453 sc->nvm_opaddr, sc->nvm_data);*/ 454 455 if (sc->nvm_bits == 0) { 456 DPRINTF("eeprom state machine not expecting data! " 457 "0x%x 0x%x 0x%x 0x%x", 458 sc->nvm_mode, sc->nvm_bits, 459 sc->nvm_opaddr, sc->nvm_data); 460 return; 461 } 462 sc->nvm_bits--; 463 if (sc->nvm_mode == E82545_NVM_MODE_DATAOUT) { 464 /* shifting out */ 465 if (sc->nvm_data & 0x8000) { 466 sc->eeprom_control |= E1000_EECD_DO; 467 } else { 468 sc->eeprom_control &= ~E1000_EECD_DO; 469 } 470 sc->nvm_data <<= 1; 471 if (sc->nvm_bits == 0) { 472 /* read done, back to opcode mode. */ 473 sc->nvm_opaddr = 0; 474 sc->nvm_mode = E82545_NVM_MODE_OPADDR; 475 sc->nvm_bits = E82545_NVM_OPADDR_BITS; 476 } 477 } else if (sc->nvm_mode == E82545_NVM_MODE_DATAIN) { 478 /* shifting in */ 479 sc->nvm_data <<= 1; 480 if (sc->eeprom_control & E1000_EECD_DI) { 481 sc->nvm_data |= 1; 482 } 483 if (sc->nvm_bits == 0) { 484 /* eeprom write */ 485 uint16_t op = sc->nvm_opaddr & E82545_NVM_OPCODE_MASK; 486 uint16_t addr = sc->nvm_opaddr & E82545_NVM_ADDR_MASK; 487 if (op != E82545_NVM_OPCODE_WRITE) { 488 DPRINTF("Illegal eeprom write op 0x%x", 489 sc->nvm_opaddr); 490 } else if (addr >= E82545_NVM_EEPROM_SIZE) { 491 DPRINTF("Illegal eeprom write addr 0x%x", 492 sc->nvm_opaddr); 493 } else { 494 DPRINTF("eeprom write eeprom[0x%x] = 0x%x", 495 addr, sc->nvm_data); 496 sc->eeprom_data[addr] = sc->nvm_data; 497 } 498 /* back to opcode mode */ 499 sc->nvm_opaddr = 0; 500 sc->nvm_mode = E82545_NVM_MODE_OPADDR; 501 sc->nvm_bits = E82545_NVM_OPADDR_BITS; 502 } 503 } else if (sc->nvm_mode == E82545_NVM_MODE_OPADDR) { 504 sc->nvm_opaddr <<= 1; 505 if (sc->eeprom_control & E1000_EECD_DI) { 506 sc->nvm_opaddr |= 1; 507 } 508 if (sc->nvm_bits == 0) { 509 uint16_t op = sc->nvm_opaddr & E82545_NVM_OPCODE_MASK; 510 switch (op) { 511 case E82545_NVM_OPCODE_EWEN: 512 DPRINTF("eeprom write enable: 0x%x", 513 sc->nvm_opaddr); 514 /* back to opcode mode */ 515 sc->nvm_opaddr = 0; 516 sc->nvm_mode = E82545_NVM_MODE_OPADDR; 517 sc->nvm_bits = E82545_NVM_OPADDR_BITS; 518 break; 519 case E82545_NVM_OPCODE_READ: 520 { 521 uint16_t addr = sc->nvm_opaddr & 522 E82545_NVM_ADDR_MASK; 523 sc->nvm_mode = E82545_NVM_MODE_DATAOUT; 524 sc->nvm_bits = E82545_NVM_DATA_BITS; 525 if (addr < E82545_NVM_EEPROM_SIZE) { 526 sc->nvm_data = sc->eeprom_data[addr]; 527 DPRINTF("eeprom read: eeprom[0x%x] = 0x%x", 528 addr, sc->nvm_data); 529 } else { 530 DPRINTF("eeprom illegal read: 0x%x", 531 sc->nvm_opaddr); 532 sc->nvm_data = 0; 533 } 534 break; 535 } 536 case E82545_NVM_OPCODE_WRITE: 537 sc->nvm_mode = E82545_NVM_MODE_DATAIN; 538 sc->nvm_bits = E82545_NVM_DATA_BITS; 539 sc->nvm_data = 0; 540 break; 541 default: 542 DPRINTF("eeprom unknown op: 0x%x", 543 sc->nvm_opaddr); 544 /* back to opcode mode */ 545 sc->nvm_opaddr = 0; 546 sc->nvm_mode = E82545_NVM_MODE_OPADDR; 547 sc->nvm_bits = E82545_NVM_OPADDR_BITS; 548 } 549 } 550 } else { 551 DPRINTF("eeprom state machine wrong state! " 552 "0x%x 0x%x 0x%x 0x%x", 553 sc->nvm_mode, sc->nvm_bits, 554 sc->nvm_opaddr, sc->nvm_data); 555 } 556 } 557 558 static void 559 e82545_itr_callback(int fd __unused, enum ev_type type __unused, void *param) 560 { 561 uint32_t new; 562 struct e82545_softc *sc = param; 563 564 pthread_mutex_lock(&sc->esc_mtx); 565 new = sc->esc_ICR & sc->esc_IMS; 566 if (new && !sc->esc_irq_asserted) { 567 DPRINTF("itr callback: lintr assert %x", new); 568 sc->esc_irq_asserted = 1; 569 pci_lintr_assert(sc->esc_pi); 570 } else { 571 mevent_delete(sc->esc_mevpitr); 572 sc->esc_mevpitr = NULL; 573 } 574 pthread_mutex_unlock(&sc->esc_mtx); 575 } 576 577 static void 578 e82545_icr_assert(struct e82545_softc *sc, uint32_t bits) 579 { 580 uint32_t new; 581 582 DPRINTF("icr assert: 0x%x", bits); 583 584 /* 585 * An interrupt is only generated if bits are set that 586 * aren't already in the ICR, these bits are unmasked, 587 * and there isn't an interrupt already pending. 588 */ 589 new = bits & ~sc->esc_ICR & sc->esc_IMS; 590 sc->esc_ICR |= bits; 591 592 if (new == 0) { 593 DPRINTF("icr assert: masked %x, ims %x", new, sc->esc_IMS); 594 } else if (sc->esc_mevpitr != NULL) { 595 DPRINTF("icr assert: throttled %x, ims %x", new, sc->esc_IMS); 596 } else if (!sc->esc_irq_asserted) { 597 DPRINTF("icr assert: lintr assert %x", new); 598 sc->esc_irq_asserted = 1; 599 pci_lintr_assert(sc->esc_pi); 600 if (sc->esc_ITR != 0) { 601 sc->esc_mevpitr = mevent_add( 602 (sc->esc_ITR + 3905) / 3906, /* 256ns -> 1ms */ 603 EVF_TIMER, e82545_itr_callback, sc); 604 } 605 } 606 } 607 608 static void 609 e82545_ims_change(struct e82545_softc *sc, uint32_t bits) 610 { 611 uint32_t new; 612 613 /* 614 * Changing the mask may allow previously asserted 615 * but masked interrupt requests to generate an interrupt. 616 */ 617 new = bits & sc->esc_ICR & ~sc->esc_IMS; 618 sc->esc_IMS |= bits; 619 620 if (new == 0) { 621 DPRINTF("ims change: masked %x, ims %x", new, sc->esc_IMS); 622 } else if (sc->esc_mevpitr != NULL) { 623 DPRINTF("ims change: throttled %x, ims %x", new, sc->esc_IMS); 624 } else if (!sc->esc_irq_asserted) { 625 DPRINTF("ims change: lintr assert %x", new); 626 sc->esc_irq_asserted = 1; 627 pci_lintr_assert(sc->esc_pi); 628 if (sc->esc_ITR != 0) { 629 sc->esc_mevpitr = mevent_add( 630 (sc->esc_ITR + 3905) / 3906, /* 256ns -> 1ms */ 631 EVF_TIMER, e82545_itr_callback, sc); 632 } 633 } 634 } 635 636 static void 637 e82545_icr_deassert(struct e82545_softc *sc, uint32_t bits) 638 { 639 640 DPRINTF("icr deassert: 0x%x", bits); 641 sc->esc_ICR &= ~bits; 642 643 /* 644 * If there are no longer any interrupt sources and there 645 * was an asserted interrupt, clear it 646 */ 647 if (sc->esc_irq_asserted && !(sc->esc_ICR & sc->esc_IMS)) { 648 DPRINTF("icr deassert: lintr deassert %x", bits); 649 pci_lintr_deassert(sc->esc_pi); 650 sc->esc_irq_asserted = 0; 651 } 652 } 653 654 static void 655 e82545_intr_write(struct e82545_softc *sc, uint32_t offset, uint32_t value) 656 { 657 658 DPRINTF("intr_write: off %x, val %x", offset, value); 659 660 switch (offset) { 661 case E1000_ICR: 662 e82545_icr_deassert(sc, value); 663 break; 664 case E1000_ITR: 665 sc->esc_ITR = value; 666 break; 667 case E1000_ICS: 668 sc->esc_ICS = value; /* not used: store for debug */ 669 e82545_icr_assert(sc, value); 670 break; 671 case E1000_IMS: 672 e82545_ims_change(sc, value); 673 break; 674 case E1000_IMC: 675 sc->esc_IMC = value; /* for debug */ 676 sc->esc_IMS &= ~value; 677 // XXX clear interrupts if all ICR bits now masked 678 // and interrupt was pending ? 679 break; 680 default: 681 break; 682 } 683 } 684 685 static uint32_t 686 e82545_intr_read(struct e82545_softc *sc, uint32_t offset) 687 { 688 uint32_t retval; 689 690 retval = 0; 691 692 DPRINTF("intr_read: off %x", offset); 693 694 switch (offset) { 695 case E1000_ICR: 696 retval = sc->esc_ICR; 697 sc->esc_ICR = 0; 698 e82545_icr_deassert(sc, ~0); 699 break; 700 case E1000_ITR: 701 retval = sc->esc_ITR; 702 break; 703 case E1000_ICS: 704 /* write-only register */ 705 break; 706 case E1000_IMS: 707 retval = sc->esc_IMS; 708 break; 709 case E1000_IMC: 710 /* write-only register */ 711 break; 712 default: 713 break; 714 } 715 716 return (retval); 717 } 718 719 static void 720 e82545_devctl(struct e82545_softc *sc, uint32_t val) 721 { 722 723 sc->esc_CTRL = val & ~E1000_CTRL_RST; 724 725 if (val & E1000_CTRL_RST) { 726 DPRINTF("e1k: s/w reset, ctl %x", val); 727 e82545_reset(sc, 1); 728 } 729 /* XXX check for phy reset ? */ 730 } 731 732 static void 733 e82545_rx_update_rdba(struct e82545_softc *sc) 734 { 735 736 /* XXX verify desc base/len within phys mem range */ 737 sc->esc_rdba = (uint64_t)sc->esc_RDBAH << 32 | 738 sc->esc_RDBAL; 739 740 /* Cache host mapping of guest descriptor array */ 741 sc->esc_rxdesc = paddr_guest2host(sc->esc_ctx, 742 sc->esc_rdba, sc->esc_RDLEN); 743 } 744 745 static void 746 e82545_rx_ctl(struct e82545_softc *sc, uint32_t val) 747 { 748 int on; 749 750 on = ((val & E1000_RCTL_EN) == E1000_RCTL_EN); 751 752 /* Save RCTL after stripping reserved bits 31:27,24,21,14,11:10,0 */ 753 sc->esc_RCTL = val & ~0xF9204c01; 754 755 DPRINTF("rx_ctl - %s RCTL %x, val %x", 756 on ? "on" : "off", sc->esc_RCTL, val); 757 758 /* state change requested */ 759 if (on != sc->esc_rx_enabled) { 760 if (on) { 761 /* Catch disallowed/unimplemented settings */ 762 //assert(!(val & E1000_RCTL_LBM_TCVR)); 763 764 if (sc->esc_RCTL & E1000_RCTL_LBM_TCVR) { 765 sc->esc_rx_loopback = 1; 766 } else { 767 sc->esc_rx_loopback = 0; 768 } 769 770 e82545_rx_update_rdba(sc); 771 e82545_rx_enable(sc); 772 } else { 773 e82545_rx_disable(sc); 774 sc->esc_rx_loopback = 0; 775 sc->esc_rdba = 0; 776 sc->esc_rxdesc = NULL; 777 } 778 } 779 } 780 781 static void 782 e82545_tx_update_tdba(struct e82545_softc *sc) 783 { 784 785 /* XXX verify desc base/len within phys mem range */ 786 sc->esc_tdba = (uint64_t)sc->esc_TDBAH << 32 | sc->esc_TDBAL; 787 788 /* Cache host mapping of guest descriptor array */ 789 sc->esc_txdesc = paddr_guest2host(sc->esc_ctx, sc->esc_tdba, 790 sc->esc_TDLEN); 791 } 792 793 static void 794 e82545_tx_ctl(struct e82545_softc *sc, uint32_t val) 795 { 796 int on; 797 798 on = ((val & E1000_TCTL_EN) == E1000_TCTL_EN); 799 800 /* ignore TCTL_EN settings that don't change state */ 801 if (on == sc->esc_tx_enabled) 802 return; 803 804 if (on) { 805 e82545_tx_update_tdba(sc); 806 e82545_tx_enable(sc); 807 } else { 808 e82545_tx_disable(sc); 809 sc->esc_tdba = 0; 810 sc->esc_txdesc = NULL; 811 } 812 813 /* Save TCTL value after stripping reserved bits 31:25,23,2,0 */ 814 sc->esc_TCTL = val & ~0xFE800005; 815 } 816 817 static int 818 e82545_bufsz(uint32_t rctl) 819 { 820 821 switch (rctl & (E1000_RCTL_BSEX | E1000_RCTL_SZ_256)) { 822 case (E1000_RCTL_SZ_2048): return (2048); 823 case (E1000_RCTL_SZ_1024): return (1024); 824 case (E1000_RCTL_SZ_512): return (512); 825 case (E1000_RCTL_SZ_256): return (256); 826 case (E1000_RCTL_BSEX|E1000_RCTL_SZ_16384): return (16384); 827 case (E1000_RCTL_BSEX|E1000_RCTL_SZ_8192): return (8192); 828 case (E1000_RCTL_BSEX|E1000_RCTL_SZ_4096): return (4096); 829 } 830 return (256); /* Forbidden value. */ 831 } 832 833 /* XXX one packet at a time until this is debugged */ 834 static void 835 e82545_rx_callback(int fd __unused, enum ev_type type __unused, void *param) 836 { 837 struct e82545_softc *sc = param; 838 struct e1000_rx_desc *rxd; 839 struct iovec vec[64]; 840 ssize_t len; 841 int left, lim, maxpktsz, maxpktdesc, bufsz, i, n, size; 842 uint32_t cause = 0; 843 uint16_t *tp, tag, head; 844 845 pthread_mutex_lock(&sc->esc_mtx); 846 DPRINTF("rx_run: head %x, tail %x", sc->esc_RDH, sc->esc_RDT); 847 848 if (!sc->esc_rx_enabled || sc->esc_rx_loopback) { 849 DPRINTF("rx disabled (!%d || %d) -- packet(s) dropped", 850 sc->esc_rx_enabled, sc->esc_rx_loopback); 851 while (netbe_rx_discard(sc->esc_be) > 0) { 852 } 853 goto done1; 854 } 855 bufsz = e82545_bufsz(sc->esc_RCTL); 856 maxpktsz = (sc->esc_RCTL & E1000_RCTL_LPE) ? 16384 : 1522; 857 maxpktdesc = (maxpktsz + bufsz - 1) / bufsz; 858 size = sc->esc_RDLEN / 16; 859 head = sc->esc_RDH; 860 left = (size + sc->esc_RDT - head) % size; 861 if (left < maxpktdesc) { 862 DPRINTF("rx overflow (%d < %d) -- packet(s) dropped", 863 left, maxpktdesc); 864 while (netbe_rx_discard(sc->esc_be) > 0) { 865 } 866 goto done1; 867 } 868 869 sc->esc_rx_active = 1; 870 pthread_mutex_unlock(&sc->esc_mtx); 871 872 for (lim = size / 4; lim > 0 && left >= maxpktdesc; lim -= n) { 873 874 /* Grab rx descriptor pointed to by the head pointer */ 875 for (i = 0; i < maxpktdesc; i++) { 876 rxd = &sc->esc_rxdesc[(head + i) % size]; 877 vec[i].iov_base = paddr_guest2host(sc->esc_ctx, 878 rxd->buffer_addr, bufsz); 879 vec[i].iov_len = bufsz; 880 } 881 len = netbe_recv(sc->esc_be, vec, maxpktdesc); 882 if (len <= 0) { 883 DPRINTF("netbe_recv() returned %zd", len); 884 goto done; 885 } 886 887 /* 888 * Adjust the packet length based on whether the CRC needs 889 * to be stripped or if the packet is less than the minimum 890 * eth packet size. 891 */ 892 if (len < ETHER_MIN_LEN - ETHER_CRC_LEN) 893 len = ETHER_MIN_LEN - ETHER_CRC_LEN; 894 if (!(sc->esc_RCTL & E1000_RCTL_SECRC)) 895 len += ETHER_CRC_LEN; 896 n = (len + bufsz - 1) / bufsz; 897 898 DPRINTF("packet read %zd bytes, %d segs, head %d", 899 len, n, head); 900 901 /* Apply VLAN filter. */ 902 tp = (uint16_t *)vec[0].iov_base + 6; 903 if ((sc->esc_RCTL & E1000_RCTL_VFE) && 904 (ntohs(tp[0]) == sc->esc_VET)) { 905 tag = ntohs(tp[1]) & 0x0fff; 906 if ((sc->esc_fvlan[tag >> 5] & 907 (1 << (tag & 0x1f))) != 0) { 908 DPRINTF("known VLAN %d", tag); 909 } else { 910 DPRINTF("unknown VLAN %d", tag); 911 n = 0; 912 continue; 913 } 914 } 915 916 /* Update all consumed descriptors. */ 917 for (i = 0; i < n - 1; i++) { 918 rxd = &sc->esc_rxdesc[(head + i) % size]; 919 rxd->length = bufsz; 920 rxd->csum = 0; 921 rxd->errors = 0; 922 rxd->special = 0; 923 rxd->status = E1000_RXD_STAT_DD; 924 } 925 rxd = &sc->esc_rxdesc[(head + i) % size]; 926 rxd->length = len % bufsz; 927 rxd->csum = 0; 928 rxd->errors = 0; 929 rxd->special = 0; 930 /* XXX signal no checksum for now */ 931 rxd->status = E1000_RXD_STAT_PIF | E1000_RXD_STAT_IXSM | 932 E1000_RXD_STAT_EOP | E1000_RXD_STAT_DD; 933 934 /* Schedule receive interrupts. */ 935 if ((uint32_t)len <= sc->esc_RSRPD) { 936 cause |= E1000_ICR_SRPD | E1000_ICR_RXT0; 937 } else { 938 /* XXX: RDRT and RADV timers should be here. */ 939 cause |= E1000_ICR_RXT0; 940 } 941 942 head = (head + n) % size; 943 left -= n; 944 } 945 946 done: 947 pthread_mutex_lock(&sc->esc_mtx); 948 sc->esc_rx_active = 0; 949 if (sc->esc_rx_enabled == 0) 950 pthread_cond_signal(&sc->esc_rx_cond); 951 952 sc->esc_RDH = head; 953 /* Respect E1000_RCTL_RDMTS */ 954 left = (size + sc->esc_RDT - head) % size; 955 if (left < (size >> (((sc->esc_RCTL >> 8) & 3) + 1))) 956 cause |= E1000_ICR_RXDMT0; 957 /* Assert all accumulated interrupts. */ 958 if (cause != 0) 959 e82545_icr_assert(sc, cause); 960 done1: 961 DPRINTF("rx_run done: head %x, tail %x", sc->esc_RDH, sc->esc_RDT); 962 pthread_mutex_unlock(&sc->esc_mtx); 963 } 964 965 static uint16_t 966 e82545_carry(uint32_t sum) 967 { 968 969 sum = (sum & 0xFFFF) + (sum >> 16); 970 if (sum > 0xFFFF) 971 sum -= 0xFFFF; 972 return (sum); 973 } 974 975 static uint16_t 976 e82545_buf_checksum(uint8_t *buf, int len) 977 { 978 int i; 979 uint32_t sum = 0; 980 981 /* Checksum all the pairs of bytes first... */ 982 for (i = 0; i < (len & ~1); i += 2) 983 sum += *((u_int16_t *)(buf + i)); 984 985 /* 986 * If there's a single byte left over, checksum it, too. 987 * Network byte order is big-endian, so the remaining byte is 988 * the high byte. 989 */ 990 if (i < len) 991 sum += htons(buf[i] << 8); 992 993 return (e82545_carry(sum)); 994 } 995 996 static uint16_t 997 e82545_iov_checksum(struct iovec *iov, int iovcnt, unsigned int off, 998 unsigned int len) 999 { 1000 unsigned int now, odd; 1001 uint32_t sum = 0, s; 1002 1003 /* Skip completely unneeded vectors. */ 1004 while (iovcnt > 0 && iov->iov_len <= off && off > 0) { 1005 off -= iov->iov_len; 1006 iov++; 1007 iovcnt--; 1008 } 1009 1010 /* Calculate checksum of requested range. */ 1011 odd = 0; 1012 while (len > 0 && iovcnt > 0) { 1013 now = MIN(len, iov->iov_len - off); 1014 s = e82545_buf_checksum((uint8_t *)iov->iov_base + off, now); 1015 sum += odd ? (s << 8) : s; 1016 odd ^= (now & 1); 1017 len -= now; 1018 off = 0; 1019 iov++; 1020 iovcnt--; 1021 } 1022 1023 return (e82545_carry(sum)); 1024 } 1025 1026 /* 1027 * Return the transmit descriptor type. 1028 */ 1029 static int 1030 e82545_txdesc_type(uint32_t lower) 1031 { 1032 int type; 1033 1034 type = 0; 1035 1036 if (lower & E1000_TXD_CMD_DEXT) 1037 type = lower & E1000_TXD_MASK; 1038 1039 return (type); 1040 } 1041 1042 static void 1043 e82545_transmit_checksum(struct iovec *iov, int iovcnt, struct ck_info *ck) 1044 { 1045 uint16_t cksum; 1046 unsigned int cklen; 1047 1048 DPRINTF("tx cksum: iovcnt/s/off/len %d/%d/%d/%d", 1049 iovcnt, ck->ck_start, ck->ck_off, ck->ck_len); 1050 cklen = ck->ck_len ? ck->ck_len - ck->ck_start + 1U : UINT_MAX; 1051 cksum = e82545_iov_checksum(iov, iovcnt, ck->ck_start, cklen); 1052 *(uint16_t *)((uint8_t *)iov[0].iov_base + ck->ck_off) = ~cksum; 1053 } 1054 1055 static void 1056 e82545_transmit_backend(struct e82545_softc *sc, struct iovec *iov, int iovcnt) 1057 { 1058 1059 if (sc->esc_be == NULL) 1060 return; 1061 1062 (void) netbe_send(sc->esc_be, iov, iovcnt); 1063 } 1064 1065 static void 1066 e82545_transmit_done(struct e82545_softc *sc, uint16_t head, uint16_t tail, 1067 uint16_t dsize, int *tdwb) 1068 { 1069 union e1000_tx_udesc *dsc; 1070 1071 for ( ; head != tail; head = (head + 1) % dsize) { 1072 dsc = &sc->esc_txdesc[head]; 1073 if (dsc->td.lower.data & E1000_TXD_CMD_RS) { 1074 dsc->td.upper.data |= E1000_TXD_STAT_DD; 1075 *tdwb = 1; 1076 } 1077 } 1078 } 1079 1080 static int 1081 e82545_transmit(struct e82545_softc *sc, uint16_t head, uint16_t tail, 1082 uint16_t dsize, uint16_t *rhead, int *tdwb) 1083 { 1084 uint8_t *hdr, *hdrp; 1085 struct iovec iovb[I82545_MAX_TXSEGS + 2]; 1086 struct iovec tiov[I82545_MAX_TXSEGS + 2]; 1087 struct e1000_context_desc *cd; 1088 struct ck_info ckinfo[2]; 1089 struct iovec *iov; 1090 union e1000_tx_udesc *dsc; 1091 int desc, dtype, ntype, iovcnt, tcp, tso, paylen, seg, tiovcnt, pv; 1092 unsigned hdrlen, vlen, pktlen, len, left, mss, now, nnow, nleft, pvoff; 1093 uint32_t tcpsum, tcpseq; 1094 uint16_t ipcs, tcpcs, ipid, ohead; 1095 bool invalid; 1096 1097 ckinfo[0].ck_valid = ckinfo[1].ck_valid = 0; 1098 iovcnt = 0; 1099 ntype = 0; 1100 tso = 0; 1101 pktlen = 0; 1102 ohead = head; 1103 invalid = false; 1104 1105 /* iovb[0/1] may be used for writable copy of headers. */ 1106 iov = &iovb[2]; 1107 1108 for (desc = 0; ; desc++, head = (head + 1) % dsize) { 1109 if (head == tail) { 1110 *rhead = head; 1111 return (0); 1112 } 1113 dsc = &sc->esc_txdesc[head]; 1114 dtype = e82545_txdesc_type(dsc->td.lower.data); 1115 1116 if (desc == 0) { 1117 switch (dtype) { 1118 case E1000_TXD_TYP_C: 1119 DPRINTF("tx ctxt desc idx %d: %016jx " 1120 "%08x%08x", 1121 head, dsc->td.buffer_addr, 1122 dsc->td.upper.data, dsc->td.lower.data); 1123 /* Save context and return */ 1124 sc->esc_txctx = dsc->cd; 1125 goto done; 1126 case E1000_TXD_TYP_L: 1127 DPRINTF("tx legacy desc idx %d: %08x%08x", 1128 head, dsc->td.upper.data, dsc->td.lower.data); 1129 /* 1130 * legacy cksum start valid in first descriptor 1131 */ 1132 ntype = dtype; 1133 ckinfo[0].ck_start = dsc->td.upper.fields.css; 1134 break; 1135 case E1000_TXD_TYP_D: 1136 DPRINTF("tx data desc idx %d: %08x%08x", 1137 head, dsc->td.upper.data, dsc->td.lower.data); 1138 ntype = dtype; 1139 break; 1140 default: 1141 break; 1142 } 1143 } else { 1144 /* Descriptor type must be consistent */ 1145 assert(dtype == ntype); 1146 DPRINTF("tx next desc idx %d: %08x%08x", 1147 head, dsc->td.upper.data, dsc->td.lower.data); 1148 } 1149 1150 len = (dtype == E1000_TXD_TYP_L) ? dsc->td.lower.flags.length : 1151 dsc->dd.lower.data & 0xFFFFF; 1152 1153 /* Strip checksum supplied by guest. */ 1154 if ((dsc->td.lower.data & E1000_TXD_CMD_EOP) != 0 && 1155 (dsc->td.lower.data & E1000_TXD_CMD_IFCS) == 0) { 1156 if (len <= 2) { 1157 WPRINTF("final descriptor too short (%d) -- dropped", 1158 len); 1159 invalid = true; 1160 } else 1161 len -= 2; 1162 } 1163 1164 if (len > 0 && iovcnt < I82545_MAX_TXSEGS) { 1165 iov[iovcnt].iov_base = paddr_guest2host(sc->esc_ctx, 1166 dsc->td.buffer_addr, len); 1167 iov[iovcnt].iov_len = len; 1168 iovcnt++; 1169 pktlen += len; 1170 } 1171 1172 /* 1173 * Pull out info that is valid in the final descriptor 1174 * and exit descriptor loop. 1175 */ 1176 if (dsc->td.lower.data & E1000_TXD_CMD_EOP) { 1177 if (dtype == E1000_TXD_TYP_L) { 1178 if (dsc->td.lower.data & E1000_TXD_CMD_IC) { 1179 ckinfo[0].ck_valid = 1; 1180 ckinfo[0].ck_off = 1181 dsc->td.lower.flags.cso; 1182 ckinfo[0].ck_len = 0; 1183 } 1184 } else { 1185 cd = &sc->esc_txctx; 1186 if (dsc->dd.lower.data & E1000_TXD_CMD_TSE) 1187 tso = 1; 1188 if (dsc->dd.upper.fields.popts & 1189 E1000_TXD_POPTS_IXSM) 1190 ckinfo[0].ck_valid = 1; 1191 if (dsc->dd.upper.fields.popts & 1192 E1000_TXD_POPTS_IXSM || tso) { 1193 ckinfo[0].ck_start = 1194 cd->lower_setup.ip_fields.ipcss; 1195 ckinfo[0].ck_off = 1196 cd->lower_setup.ip_fields.ipcso; 1197 ckinfo[0].ck_len = 1198 cd->lower_setup.ip_fields.ipcse; 1199 } 1200 if (dsc->dd.upper.fields.popts & 1201 E1000_TXD_POPTS_TXSM) 1202 ckinfo[1].ck_valid = 1; 1203 if (dsc->dd.upper.fields.popts & 1204 E1000_TXD_POPTS_TXSM || tso) { 1205 ckinfo[1].ck_start = 1206 cd->upper_setup.tcp_fields.tucss; 1207 ckinfo[1].ck_off = 1208 cd->upper_setup.tcp_fields.tucso; 1209 ckinfo[1].ck_len = 1210 cd->upper_setup.tcp_fields.tucse; 1211 } 1212 } 1213 break; 1214 } 1215 } 1216 1217 if (invalid) 1218 goto done; 1219 1220 if (iovcnt > I82545_MAX_TXSEGS) { 1221 WPRINTF("tx too many descriptors (%d > %d) -- dropped", 1222 iovcnt, I82545_MAX_TXSEGS); 1223 goto done; 1224 } 1225 1226 hdrlen = vlen = 0; 1227 /* Estimate writable space for VLAN header insertion. */ 1228 if ((sc->esc_CTRL & E1000_CTRL_VME) && 1229 (dsc->td.lower.data & E1000_TXD_CMD_VLE)) { 1230 hdrlen = ETHER_ADDR_LEN*2; 1231 vlen = ETHER_VLAN_ENCAP_LEN; 1232 } 1233 if (!tso) { 1234 /* Estimate required writable space for checksums. */ 1235 if (ckinfo[0].ck_valid) 1236 hdrlen = MAX(hdrlen, ckinfo[0].ck_off + 2U); 1237 if (ckinfo[1].ck_valid) 1238 hdrlen = MAX(hdrlen, ckinfo[1].ck_off + 2U); 1239 /* Round up writable space to the first vector. */ 1240 if (hdrlen != 0 && iov[0].iov_len > hdrlen && 1241 iov[0].iov_len < hdrlen + 100) 1242 hdrlen = iov[0].iov_len; 1243 } else { 1244 /* In case of TSO header length provided by software. */ 1245 hdrlen = sc->esc_txctx.tcp_seg_setup.fields.hdr_len; 1246 1247 /* 1248 * Cap the header length at 240 based on 7.2.4.5 of 1249 * the Intel 82576EB (Rev 2.63) datasheet. 1250 */ 1251 if (hdrlen > 240) { 1252 WPRINTF("TSO hdrlen too large: %d", hdrlen); 1253 goto done; 1254 } 1255 1256 /* 1257 * If VLAN insertion is requested, ensure the header 1258 * at least holds the amount of data copied during 1259 * VLAN insertion below. 1260 * 1261 * XXX: Realistic packets will include a full Ethernet 1262 * header before the IP header at ckinfo[0].ck_start, 1263 * but this check is sufficient to prevent 1264 * out-of-bounds access below. 1265 */ 1266 if (vlen != 0 && hdrlen < ETHER_ADDR_LEN*2) { 1267 WPRINTF("TSO hdrlen too small for vlan insertion " 1268 "(%d vs %d) -- dropped", hdrlen, 1269 ETHER_ADDR_LEN*2); 1270 goto done; 1271 } 1272 1273 /* 1274 * Ensure that the header length covers the used fields 1275 * in the IP and TCP headers as well as the IP and TCP 1276 * checksums. The following fields are accessed below: 1277 * 1278 * Header | Field | Offset | Length 1279 * -------+-------+--------+------- 1280 * IPv4 | len | 2 | 2 1281 * IPv4 | ID | 4 | 2 1282 * IPv6 | len | 4 | 2 1283 * TCP | seq # | 4 | 4 1284 * TCP | flags | 13 | 1 1285 * UDP | len | 4 | 4 1286 */ 1287 if (hdrlen < ckinfo[0].ck_start + 6U || 1288 hdrlen < ckinfo[0].ck_off + 2U) { 1289 WPRINTF("TSO hdrlen too small for IP fields (%d) " 1290 "-- dropped", hdrlen); 1291 goto done; 1292 } 1293 if (sc->esc_txctx.cmd_and_length & E1000_TXD_CMD_TCP) { 1294 if (hdrlen < ckinfo[1].ck_start + 14U) { 1295 WPRINTF("TSO hdrlen too small for TCP fields " 1296 "(%d) -- dropped", hdrlen); 1297 goto done; 1298 } 1299 } else { 1300 if (hdrlen < ckinfo[1].ck_start + 8U) { 1301 WPRINTF("TSO hdrlen too small for UDP fields " 1302 "(%d) -- dropped", hdrlen); 1303 goto done; 1304 } 1305 } 1306 if (ckinfo[1].ck_valid && hdrlen < ckinfo[1].ck_off + 2U) { 1307 WPRINTF("TSO hdrlen too small for TCP/UDP fields " 1308 "(%d) -- dropped", hdrlen); 1309 goto done; 1310 } 1311 } 1312 1313 if (pktlen < hdrlen + vlen) { 1314 WPRINTF("packet too small for writable header"); 1315 goto done; 1316 } 1317 1318 /* Allocate, fill and prepend writable header vector. */ 1319 if (hdrlen + vlen != 0) { 1320 hdr = __builtin_alloca(hdrlen + vlen); 1321 hdr += vlen; 1322 for (left = hdrlen, hdrp = hdr; left > 0; 1323 left -= now, hdrp += now) { 1324 now = MIN(left, iov->iov_len); 1325 memcpy(hdrp, iov->iov_base, now); 1326 iov->iov_base = (uint8_t *)iov->iov_base + now; 1327 iov->iov_len -= now; 1328 if (iov->iov_len == 0) { 1329 iov++; 1330 iovcnt--; 1331 } 1332 } 1333 iov--; 1334 iovcnt++; 1335 iov->iov_base = hdr; 1336 iov->iov_len = hdrlen; 1337 } else 1338 hdr = NULL; 1339 1340 /* Insert VLAN tag. */ 1341 if (vlen != 0) { 1342 hdr -= ETHER_VLAN_ENCAP_LEN; 1343 memmove(hdr, hdr + ETHER_VLAN_ENCAP_LEN, ETHER_ADDR_LEN*2); 1344 hdrlen += ETHER_VLAN_ENCAP_LEN; 1345 hdr[ETHER_ADDR_LEN*2 + 0] = sc->esc_VET >> 8; 1346 hdr[ETHER_ADDR_LEN*2 + 1] = sc->esc_VET & 0xff; 1347 hdr[ETHER_ADDR_LEN*2 + 2] = dsc->td.upper.fields.special >> 8; 1348 hdr[ETHER_ADDR_LEN*2 + 3] = dsc->td.upper.fields.special & 0xff; 1349 iov->iov_base = hdr; 1350 iov->iov_len += ETHER_VLAN_ENCAP_LEN; 1351 /* Correct checksum offsets after VLAN tag insertion. */ 1352 ckinfo[0].ck_start += ETHER_VLAN_ENCAP_LEN; 1353 ckinfo[0].ck_off += ETHER_VLAN_ENCAP_LEN; 1354 if (ckinfo[0].ck_len != 0) 1355 ckinfo[0].ck_len += ETHER_VLAN_ENCAP_LEN; 1356 ckinfo[1].ck_start += ETHER_VLAN_ENCAP_LEN; 1357 ckinfo[1].ck_off += ETHER_VLAN_ENCAP_LEN; 1358 if (ckinfo[1].ck_len != 0) 1359 ckinfo[1].ck_len += ETHER_VLAN_ENCAP_LEN; 1360 } 1361 1362 /* Simple non-TSO case. */ 1363 if (!tso) { 1364 /* Calculate checksums and transmit. */ 1365 if (ckinfo[0].ck_valid) 1366 e82545_transmit_checksum(iov, iovcnt, &ckinfo[0]); 1367 if (ckinfo[1].ck_valid) 1368 e82545_transmit_checksum(iov, iovcnt, &ckinfo[1]); 1369 e82545_transmit_backend(sc, iov, iovcnt); 1370 goto done; 1371 } 1372 1373 /* Doing TSO. */ 1374 tcp = (sc->esc_txctx.cmd_and_length & E1000_TXD_CMD_TCP) != 0; 1375 mss = sc->esc_txctx.tcp_seg_setup.fields.mss; 1376 paylen = (sc->esc_txctx.cmd_and_length & 0x000fffff); 1377 DPRINTF("tx %s segmentation offload %d+%d/%u bytes %d iovs", 1378 tcp ? "TCP" : "UDP", hdrlen, paylen, mss, iovcnt); 1379 ipid = ntohs(*(uint16_t *)&hdr[ckinfo[0].ck_start + 4]); 1380 tcpseq = 0; 1381 if (tcp) 1382 tcpseq = ntohl(*(uint32_t *)&hdr[ckinfo[1].ck_start + 4]); 1383 ipcs = *(uint16_t *)&hdr[ckinfo[0].ck_off]; 1384 tcpcs = 0; 1385 if (ckinfo[1].ck_valid) /* Save partial pseudo-header checksum. */ 1386 tcpcs = *(uint16_t *)&hdr[ckinfo[1].ck_off]; 1387 pv = 1; 1388 pvoff = 0; 1389 for (seg = 0, left = paylen; left > 0; seg++, left -= now) { 1390 now = MIN(left, mss); 1391 1392 /* Construct IOVs for the segment. */ 1393 /* Include whole original header. */ 1394 tiov[0].iov_base = hdr; 1395 tiov[0].iov_len = hdrlen; 1396 tiovcnt = 1; 1397 /* Include respective part of payload IOV. */ 1398 for (nleft = now; pv < iovcnt && nleft > 0; nleft -= nnow) { 1399 nnow = MIN(nleft, iov[pv].iov_len - pvoff); 1400 tiov[tiovcnt].iov_base = (uint8_t *)iov[pv].iov_base + 1401 pvoff; 1402 tiov[tiovcnt++].iov_len = nnow; 1403 if (pvoff + nnow == iov[pv].iov_len) { 1404 pv++; 1405 pvoff = 0; 1406 } else 1407 pvoff += nnow; 1408 } 1409 DPRINTF("tx segment %d %d+%d bytes %d iovs", 1410 seg, hdrlen, now, tiovcnt); 1411 1412 /* Update IP header. */ 1413 if (sc->esc_txctx.cmd_and_length & E1000_TXD_CMD_IP) { 1414 /* IPv4 -- set length and ID */ 1415 *(uint16_t *)&hdr[ckinfo[0].ck_start + 2] = 1416 htons(hdrlen - ckinfo[0].ck_start + now); 1417 *(uint16_t *)&hdr[ckinfo[0].ck_start + 4] = 1418 htons(ipid + seg); 1419 } else { 1420 /* IPv6 -- set length */ 1421 *(uint16_t *)&hdr[ckinfo[0].ck_start + 4] = 1422 htons(hdrlen - ckinfo[0].ck_start - 40 + 1423 now); 1424 } 1425 1426 /* Update pseudo-header checksum. */ 1427 tcpsum = tcpcs; 1428 tcpsum += htons(hdrlen - ckinfo[1].ck_start + now); 1429 1430 /* Update TCP/UDP headers. */ 1431 if (tcp) { 1432 /* Update sequence number and FIN/PUSH flags. */ 1433 *(uint32_t *)&hdr[ckinfo[1].ck_start + 4] = 1434 htonl(tcpseq + paylen - left); 1435 if (now < left) { 1436 hdr[ckinfo[1].ck_start + 13] &= 1437 ~(TH_FIN | TH_PUSH); 1438 } 1439 } else { 1440 /* Update payload length. */ 1441 *(uint32_t *)&hdr[ckinfo[1].ck_start + 4] = 1442 hdrlen - ckinfo[1].ck_start + now; 1443 } 1444 1445 /* Calculate checksums and transmit. */ 1446 if (ckinfo[0].ck_valid) { 1447 *(uint16_t *)&hdr[ckinfo[0].ck_off] = ipcs; 1448 e82545_transmit_checksum(tiov, tiovcnt, &ckinfo[0]); 1449 } 1450 if (ckinfo[1].ck_valid) { 1451 *(uint16_t *)&hdr[ckinfo[1].ck_off] = 1452 e82545_carry(tcpsum); 1453 e82545_transmit_checksum(tiov, tiovcnt, &ckinfo[1]); 1454 } 1455 e82545_transmit_backend(sc, tiov, tiovcnt); 1456 } 1457 1458 done: 1459 head = (head + 1) % dsize; 1460 e82545_transmit_done(sc, ohead, head, dsize, tdwb); 1461 1462 *rhead = head; 1463 return (desc + 1); 1464 } 1465 1466 static void 1467 e82545_tx_run(struct e82545_softc *sc) 1468 { 1469 uint32_t cause; 1470 uint16_t head, rhead, tail, size; 1471 int lim, tdwb, sent; 1472 1473 size = sc->esc_TDLEN / 16; 1474 if (size == 0) 1475 return; 1476 1477 head = sc->esc_TDH % size; 1478 tail = sc->esc_TDT % size; 1479 DPRINTF("tx_run: head %x, rhead %x, tail %x", 1480 sc->esc_TDH, sc->esc_TDHr, sc->esc_TDT); 1481 1482 pthread_mutex_unlock(&sc->esc_mtx); 1483 rhead = head; 1484 tdwb = 0; 1485 for (lim = size / 4; sc->esc_tx_enabled && lim > 0; lim -= sent) { 1486 sent = e82545_transmit(sc, head, tail, size, &rhead, &tdwb); 1487 if (sent == 0) 1488 break; 1489 head = rhead; 1490 } 1491 pthread_mutex_lock(&sc->esc_mtx); 1492 1493 sc->esc_TDH = head; 1494 sc->esc_TDHr = rhead; 1495 cause = 0; 1496 if (tdwb) 1497 cause |= E1000_ICR_TXDW; 1498 if (lim != size / 4 && sc->esc_TDH == sc->esc_TDT) 1499 cause |= E1000_ICR_TXQE; 1500 if (cause) 1501 e82545_icr_assert(sc, cause); 1502 1503 DPRINTF("tx_run done: head %x, rhead %x, tail %x", 1504 sc->esc_TDH, sc->esc_TDHr, sc->esc_TDT); 1505 } 1506 1507 static _Noreturn void * 1508 e82545_tx_thread(void *param) 1509 { 1510 struct e82545_softc *sc = param; 1511 1512 pthread_mutex_lock(&sc->esc_mtx); 1513 for (;;) { 1514 while (!sc->esc_tx_enabled || sc->esc_TDHr == sc->esc_TDT) { 1515 if (sc->esc_tx_enabled && sc->esc_TDHr != sc->esc_TDT) 1516 break; 1517 sc->esc_tx_active = 0; 1518 if (sc->esc_tx_enabled == 0) 1519 pthread_cond_signal(&sc->esc_tx_cond); 1520 pthread_cond_wait(&sc->esc_tx_cond, &sc->esc_mtx); 1521 } 1522 sc->esc_tx_active = 1; 1523 1524 /* Process some tx descriptors. Lock dropped inside. */ 1525 e82545_tx_run(sc); 1526 } 1527 } 1528 1529 static void 1530 e82545_tx_start(struct e82545_softc *sc) 1531 { 1532 1533 if (sc->esc_tx_active == 0) 1534 pthread_cond_signal(&sc->esc_tx_cond); 1535 } 1536 1537 static void 1538 e82545_tx_enable(struct e82545_softc *sc) 1539 { 1540 1541 sc->esc_tx_enabled = 1; 1542 } 1543 1544 static void 1545 e82545_tx_disable(struct e82545_softc *sc) 1546 { 1547 1548 sc->esc_tx_enabled = 0; 1549 while (sc->esc_tx_active) 1550 pthread_cond_wait(&sc->esc_tx_cond, &sc->esc_mtx); 1551 } 1552 1553 static void 1554 e82545_rx_enable(struct e82545_softc *sc) 1555 { 1556 1557 sc->esc_rx_enabled = 1; 1558 } 1559 1560 static void 1561 e82545_rx_disable(struct e82545_softc *sc) 1562 { 1563 1564 sc->esc_rx_enabled = 0; 1565 while (sc->esc_rx_active) 1566 pthread_cond_wait(&sc->esc_rx_cond, &sc->esc_mtx); 1567 } 1568 1569 static void 1570 e82545_write_ra(struct e82545_softc *sc, int reg, uint32_t wval) 1571 { 1572 struct eth_uni *eu; 1573 int idx; 1574 1575 idx = reg >> 1; 1576 assert(idx < 15); 1577 1578 eu = &sc->esc_uni[idx]; 1579 1580 if (reg & 0x1) { 1581 /* RAH */ 1582 eu->eu_valid = ((wval & E1000_RAH_AV) == E1000_RAH_AV); 1583 eu->eu_addrsel = (wval >> 16) & 0x3; 1584 eu->eu_eth.octet[5] = wval >> 8; 1585 eu->eu_eth.octet[4] = wval; 1586 } else { 1587 /* RAL */ 1588 eu->eu_eth.octet[3] = wval >> 24; 1589 eu->eu_eth.octet[2] = wval >> 16; 1590 eu->eu_eth.octet[1] = wval >> 8; 1591 eu->eu_eth.octet[0] = wval; 1592 } 1593 } 1594 1595 static uint32_t 1596 e82545_read_ra(struct e82545_softc *sc, int reg) 1597 { 1598 struct eth_uni *eu; 1599 uint32_t retval; 1600 int idx; 1601 1602 idx = reg >> 1; 1603 assert(idx < 15); 1604 1605 eu = &sc->esc_uni[idx]; 1606 1607 if (reg & 0x1) { 1608 /* RAH */ 1609 retval = (eu->eu_valid << 31) | 1610 (eu->eu_addrsel << 16) | 1611 (eu->eu_eth.octet[5] << 8) | 1612 eu->eu_eth.octet[4]; 1613 } else { 1614 /* RAL */ 1615 retval = (eu->eu_eth.octet[3] << 24) | 1616 (eu->eu_eth.octet[2] << 16) | 1617 (eu->eu_eth.octet[1] << 8) | 1618 eu->eu_eth.octet[0]; 1619 } 1620 1621 return (retval); 1622 } 1623 1624 static void 1625 e82545_write_register(struct e82545_softc *sc, uint32_t offset, uint32_t value) 1626 { 1627 int ridx; 1628 1629 if (offset & 0x3) { 1630 DPRINTF("Unaligned register write offset:0x%x value:0x%x", offset, value); 1631 return; 1632 } 1633 DPRINTF("Register write: 0x%x value: 0x%x", offset, value); 1634 1635 switch (offset) { 1636 case E1000_CTRL: 1637 case E1000_CTRL_DUP: 1638 e82545_devctl(sc, value); 1639 break; 1640 case E1000_FCAL: 1641 sc->esc_FCAL = value; 1642 break; 1643 case E1000_FCAH: 1644 sc->esc_FCAH = value & ~0xFFFF0000; 1645 break; 1646 case E1000_FCT: 1647 sc->esc_FCT = value & ~0xFFFF0000; 1648 break; 1649 case E1000_VET: 1650 sc->esc_VET = value & ~0xFFFF0000; 1651 break; 1652 case E1000_FCTTV: 1653 sc->esc_FCTTV = value & ~0xFFFF0000; 1654 break; 1655 case E1000_LEDCTL: 1656 sc->esc_LEDCTL = value & ~0x30303000; 1657 break; 1658 case E1000_PBA: 1659 sc->esc_PBA = value & 0x0000FF80; 1660 break; 1661 case E1000_ICR: 1662 case E1000_ITR: 1663 case E1000_ICS: 1664 case E1000_IMS: 1665 case E1000_IMC: 1666 e82545_intr_write(sc, offset, value); 1667 break; 1668 case E1000_RCTL: 1669 e82545_rx_ctl(sc, value); 1670 break; 1671 case E1000_FCRTL: 1672 sc->esc_FCRTL = value & ~0xFFFF0007; 1673 break; 1674 case E1000_FCRTH: 1675 sc->esc_FCRTH = value & ~0xFFFF0007; 1676 break; 1677 case E1000_RDBAL(0): 1678 sc->esc_RDBAL = value & ~0xF; 1679 if (sc->esc_rx_enabled) { 1680 /* Apparently legal: update cached address */ 1681 e82545_rx_update_rdba(sc); 1682 } 1683 break; 1684 case E1000_RDBAH(0): 1685 assert(!sc->esc_rx_enabled); 1686 sc->esc_RDBAH = value; 1687 break; 1688 case E1000_RDLEN(0): 1689 assert(!sc->esc_rx_enabled); 1690 sc->esc_RDLEN = value & ~0xFFF0007F; 1691 break; 1692 case E1000_RDH(0): 1693 /* XXX should only ever be zero ? Range check ? */ 1694 sc->esc_RDH = value; 1695 break; 1696 case E1000_RDT(0): 1697 /* XXX if this opens up the rx ring, do something ? */ 1698 sc->esc_RDT = value; 1699 break; 1700 case E1000_RDTR: 1701 /* ignore FPD bit 31 */ 1702 sc->esc_RDTR = value & ~0xFFFF0000; 1703 break; 1704 case E1000_RXDCTL(0): 1705 sc->esc_RXDCTL = value & ~0xFEC0C0C0; 1706 break; 1707 case E1000_RADV: 1708 sc->esc_RADV = value & ~0xFFFF0000; 1709 break; 1710 case E1000_RSRPD: 1711 sc->esc_RSRPD = value & ~0xFFFFF000; 1712 break; 1713 case E1000_RXCSUM: 1714 sc->esc_RXCSUM = value & ~0xFFFFF800; 1715 break; 1716 case E1000_TXCW: 1717 sc->esc_TXCW = value & ~0x3FFF0000; 1718 break; 1719 case E1000_TCTL: 1720 e82545_tx_ctl(sc, value); 1721 break; 1722 case E1000_TIPG: 1723 sc->esc_TIPG = value; 1724 break; 1725 case E1000_AIT: 1726 sc->esc_AIT = value; 1727 break; 1728 case E1000_TDBAL(0): 1729 sc->esc_TDBAL = value & ~0xF; 1730 if (sc->esc_tx_enabled) 1731 e82545_tx_update_tdba(sc); 1732 break; 1733 case E1000_TDBAH(0): 1734 sc->esc_TDBAH = value; 1735 if (sc->esc_tx_enabled) 1736 e82545_tx_update_tdba(sc); 1737 break; 1738 case E1000_TDLEN(0): 1739 sc->esc_TDLEN = value & ~0xFFF0007F; 1740 if (sc->esc_tx_enabled) 1741 e82545_tx_update_tdba(sc); 1742 break; 1743 case E1000_TDH(0): 1744 if (sc->esc_tx_enabled) { 1745 WPRINTF("ignoring write to TDH while transmit enabled"); 1746 break; 1747 } 1748 if (value != 0) { 1749 WPRINTF("ignoring non-zero value written to TDH"); 1750 break; 1751 } 1752 sc->esc_TDHr = sc->esc_TDH = value; 1753 break; 1754 case E1000_TDT(0): 1755 sc->esc_TDT = value; 1756 if (sc->esc_tx_enabled) 1757 e82545_tx_start(sc); 1758 break; 1759 case E1000_TIDV: 1760 sc->esc_TIDV = value & ~0xFFFF0000; 1761 break; 1762 case E1000_TXDCTL(0): 1763 //assert(!sc->esc_tx_enabled); 1764 sc->esc_TXDCTL = value & ~0xC0C0C0; 1765 break; 1766 case E1000_TADV: 1767 sc->esc_TADV = value & ~0xFFFF0000; 1768 break; 1769 case E1000_RAL(0) ... E1000_RAH(15): 1770 /* convert to u32 offset */ 1771 ridx = (offset - E1000_RAL(0)) >> 2; 1772 e82545_write_ra(sc, ridx, value); 1773 break; 1774 case E1000_MTA ... (E1000_MTA + (127*4)): 1775 sc->esc_fmcast[(offset - E1000_MTA) >> 2] = value; 1776 break; 1777 case E1000_VFTA ... (E1000_VFTA + (127*4)): 1778 sc->esc_fvlan[(offset - E1000_VFTA) >> 2] = value; 1779 break; 1780 case E1000_EECD: 1781 { 1782 //DPRINTF("EECD write 0x%x -> 0x%x", sc->eeprom_control, value); 1783 /* edge triggered low->high */ 1784 uint32_t eecd_strobe = ((sc->eeprom_control & E1000_EECD_SK) ? 1785 0 : (value & E1000_EECD_SK)); 1786 uint32_t eecd_mask = (E1000_EECD_SK|E1000_EECD_CS| 1787 E1000_EECD_DI|E1000_EECD_REQ); 1788 sc->eeprom_control &= ~eecd_mask; 1789 sc->eeprom_control |= (value & eecd_mask); 1790 /* grant/revoke immediately */ 1791 if (value & E1000_EECD_REQ) { 1792 sc->eeprom_control |= E1000_EECD_GNT; 1793 } else { 1794 sc->eeprom_control &= ~E1000_EECD_GNT; 1795 } 1796 if (eecd_strobe && (sc->eeprom_control & E1000_EECD_CS)) { 1797 e82545_eecd_strobe(sc); 1798 } 1799 return; 1800 } 1801 case E1000_MDIC: 1802 { 1803 uint8_t reg_addr = (uint8_t)((value & E1000_MDIC_REG_MASK) >> 1804 E1000_MDIC_REG_SHIFT); 1805 uint8_t phy_addr = (uint8_t)((value & E1000_MDIC_PHY_MASK) >> 1806 E1000_MDIC_PHY_SHIFT); 1807 sc->mdi_control = 1808 (value & ~(E1000_MDIC_ERROR|E1000_MDIC_DEST)); 1809 if ((value & E1000_MDIC_READY) != 0) { 1810 DPRINTF("Incorrect MDIC ready bit: 0x%x", value); 1811 return; 1812 } 1813 switch (value & E82545_MDIC_OP_MASK) { 1814 case E1000_MDIC_OP_READ: 1815 sc->mdi_control &= ~E82545_MDIC_DATA_MASK; 1816 sc->mdi_control |= e82545_read_mdi(sc, reg_addr, phy_addr); 1817 break; 1818 case E1000_MDIC_OP_WRITE: 1819 e82545_write_mdi(sc, reg_addr, phy_addr, 1820 value & E82545_MDIC_DATA_MASK); 1821 break; 1822 default: 1823 DPRINTF("Unknown MDIC op: 0x%x", value); 1824 return; 1825 } 1826 /* TODO: barrier? */ 1827 sc->mdi_control |= E1000_MDIC_READY; 1828 if (value & E82545_MDIC_IE) { 1829 // TODO: generate interrupt 1830 } 1831 return; 1832 } 1833 case E1000_MANC: 1834 case E1000_STATUS: 1835 return; 1836 default: 1837 DPRINTF("Unknown write register: 0x%x value:%x", offset, value); 1838 return; 1839 } 1840 } 1841 1842 static uint32_t 1843 e82545_read_register(struct e82545_softc *sc, uint32_t offset) 1844 { 1845 uint32_t retval; 1846 int ridx; 1847 1848 if (offset & 0x3) { 1849 DPRINTF("Unaligned register read offset:0x%x", offset); 1850 return 0; 1851 } 1852 1853 DPRINTF("Register read: 0x%x", offset); 1854 1855 switch (offset) { 1856 case E1000_CTRL: 1857 retval = sc->esc_CTRL; 1858 break; 1859 case E1000_STATUS: 1860 retval = E1000_STATUS_FD | E1000_STATUS_LU | 1861 E1000_STATUS_SPEED_1000; 1862 break; 1863 case E1000_FCAL: 1864 retval = sc->esc_FCAL; 1865 break; 1866 case E1000_FCAH: 1867 retval = sc->esc_FCAH; 1868 break; 1869 case E1000_FCT: 1870 retval = sc->esc_FCT; 1871 break; 1872 case E1000_VET: 1873 retval = sc->esc_VET; 1874 break; 1875 case E1000_FCTTV: 1876 retval = sc->esc_FCTTV; 1877 break; 1878 case E1000_LEDCTL: 1879 retval = sc->esc_LEDCTL; 1880 break; 1881 case E1000_PBA: 1882 retval = sc->esc_PBA; 1883 break; 1884 case E1000_ICR: 1885 case E1000_ITR: 1886 case E1000_ICS: 1887 case E1000_IMS: 1888 case E1000_IMC: 1889 retval = e82545_intr_read(sc, offset); 1890 break; 1891 case E1000_RCTL: 1892 retval = sc->esc_RCTL; 1893 break; 1894 case E1000_FCRTL: 1895 retval = sc->esc_FCRTL; 1896 break; 1897 case E1000_FCRTH: 1898 retval = sc->esc_FCRTH; 1899 break; 1900 case E1000_RDBAL(0): 1901 retval = sc->esc_RDBAL; 1902 break; 1903 case E1000_RDBAH(0): 1904 retval = sc->esc_RDBAH; 1905 break; 1906 case E1000_RDLEN(0): 1907 retval = sc->esc_RDLEN; 1908 break; 1909 case E1000_RDH(0): 1910 retval = sc->esc_RDH; 1911 break; 1912 case E1000_RDT(0): 1913 retval = sc->esc_RDT; 1914 break; 1915 case E1000_RDTR: 1916 retval = sc->esc_RDTR; 1917 break; 1918 case E1000_RXDCTL(0): 1919 retval = sc->esc_RXDCTL; 1920 break; 1921 case E1000_RADV: 1922 retval = sc->esc_RADV; 1923 break; 1924 case E1000_RSRPD: 1925 retval = sc->esc_RSRPD; 1926 break; 1927 case E1000_RXCSUM: 1928 retval = sc->esc_RXCSUM; 1929 break; 1930 case E1000_TXCW: 1931 retval = sc->esc_TXCW; 1932 break; 1933 case E1000_TCTL: 1934 retval = sc->esc_TCTL; 1935 break; 1936 case E1000_TIPG: 1937 retval = sc->esc_TIPG; 1938 break; 1939 case E1000_AIT: 1940 retval = sc->esc_AIT; 1941 break; 1942 case E1000_TDBAL(0): 1943 retval = sc->esc_TDBAL; 1944 break; 1945 case E1000_TDBAH(0): 1946 retval = sc->esc_TDBAH; 1947 break; 1948 case E1000_TDLEN(0): 1949 retval = sc->esc_TDLEN; 1950 break; 1951 case E1000_TDH(0): 1952 retval = sc->esc_TDH; 1953 break; 1954 case E1000_TDT(0): 1955 retval = sc->esc_TDT; 1956 break; 1957 case E1000_TIDV: 1958 retval = sc->esc_TIDV; 1959 break; 1960 case E1000_TXDCTL(0): 1961 retval = sc->esc_TXDCTL; 1962 break; 1963 case E1000_TADV: 1964 retval = sc->esc_TADV; 1965 break; 1966 case E1000_RAL(0) ... E1000_RAH(15): 1967 /* convert to u32 offset */ 1968 ridx = (offset - E1000_RAL(0)) >> 2; 1969 retval = e82545_read_ra(sc, ridx); 1970 break; 1971 case E1000_MTA ... (E1000_MTA + (127*4)): 1972 retval = sc->esc_fmcast[(offset - E1000_MTA) >> 2]; 1973 break; 1974 case E1000_VFTA ... (E1000_VFTA + (127*4)): 1975 retval = sc->esc_fvlan[(offset - E1000_VFTA) >> 2]; 1976 break; 1977 case E1000_EECD: 1978 //DPRINTF("EECD read %x", sc->eeprom_control); 1979 retval = sc->eeprom_control; 1980 break; 1981 case E1000_MDIC: 1982 retval = sc->mdi_control; 1983 break; 1984 case E1000_MANC: 1985 retval = 0; 1986 break; 1987 /* stats that we emulate. */ 1988 case E1000_MPC: 1989 retval = sc->missed_pkt_count; 1990 break; 1991 case E1000_PRC64: 1992 retval = sc->pkt_rx_by_size[0]; 1993 break; 1994 case E1000_PRC127: 1995 retval = sc->pkt_rx_by_size[1]; 1996 break; 1997 case E1000_PRC255: 1998 retval = sc->pkt_rx_by_size[2]; 1999 break; 2000 case E1000_PRC511: 2001 retval = sc->pkt_rx_by_size[3]; 2002 break; 2003 case E1000_PRC1023: 2004 retval = sc->pkt_rx_by_size[4]; 2005 break; 2006 case E1000_PRC1522: 2007 retval = sc->pkt_rx_by_size[5]; 2008 break; 2009 case E1000_GPRC: 2010 retval = sc->good_pkt_rx_count; 2011 break; 2012 case E1000_BPRC: 2013 retval = sc->bcast_pkt_rx_count; 2014 break; 2015 case E1000_MPRC: 2016 retval = sc->mcast_pkt_rx_count; 2017 break; 2018 case E1000_GPTC: 2019 case E1000_TPT: 2020 retval = sc->good_pkt_tx_count; 2021 break; 2022 case E1000_GORCL: 2023 retval = (uint32_t)sc->good_octets_rx; 2024 break; 2025 case E1000_GORCH: 2026 retval = (uint32_t)(sc->good_octets_rx >> 32); 2027 break; 2028 case E1000_TOTL: 2029 case E1000_GOTCL: 2030 retval = (uint32_t)sc->good_octets_tx; 2031 break; 2032 case E1000_TOTH: 2033 case E1000_GOTCH: 2034 retval = (uint32_t)(sc->good_octets_tx >> 32); 2035 break; 2036 case E1000_ROC: 2037 retval = sc->oversize_rx_count; 2038 break; 2039 case E1000_TORL: 2040 retval = (uint32_t)(sc->good_octets_rx + sc->missed_octets); 2041 break; 2042 case E1000_TORH: 2043 retval = (uint32_t)((sc->good_octets_rx + 2044 sc->missed_octets) >> 32); 2045 break; 2046 case E1000_TPR: 2047 retval = sc->good_pkt_rx_count + sc->missed_pkt_count + 2048 sc->oversize_rx_count; 2049 break; 2050 case E1000_PTC64: 2051 retval = sc->pkt_tx_by_size[0]; 2052 break; 2053 case E1000_PTC127: 2054 retval = sc->pkt_tx_by_size[1]; 2055 break; 2056 case E1000_PTC255: 2057 retval = sc->pkt_tx_by_size[2]; 2058 break; 2059 case E1000_PTC511: 2060 retval = sc->pkt_tx_by_size[3]; 2061 break; 2062 case E1000_PTC1023: 2063 retval = sc->pkt_tx_by_size[4]; 2064 break; 2065 case E1000_PTC1522: 2066 retval = sc->pkt_tx_by_size[5]; 2067 break; 2068 case E1000_MPTC: 2069 retval = sc->mcast_pkt_tx_count; 2070 break; 2071 case E1000_BPTC: 2072 retval = sc->bcast_pkt_tx_count; 2073 break; 2074 case E1000_TSCTC: 2075 retval = sc->tso_tx_count; 2076 break; 2077 /* stats that are always 0. */ 2078 case E1000_CRCERRS: 2079 case E1000_ALGNERRC: 2080 case E1000_SYMERRS: 2081 case E1000_RXERRC: 2082 case E1000_SCC: 2083 case E1000_ECOL: 2084 case E1000_MCC: 2085 case E1000_LATECOL: 2086 case E1000_COLC: 2087 case E1000_DC: 2088 case E1000_TNCRS: 2089 case E1000_SEC: 2090 case E1000_CEXTERR: 2091 case E1000_RLEC: 2092 case E1000_XONRXC: 2093 case E1000_XONTXC: 2094 case E1000_XOFFRXC: 2095 case E1000_XOFFTXC: 2096 case E1000_FCRUC: 2097 case E1000_RNBC: 2098 case E1000_RUC: 2099 case E1000_RFC: 2100 case E1000_RJC: 2101 case E1000_MGTPRC: 2102 case E1000_MGTPDC: 2103 case E1000_MGTPTC: 2104 case E1000_TSCTFC: 2105 retval = 0; 2106 break; 2107 default: 2108 DPRINTF("Unknown read register: 0x%x", offset); 2109 retval = 0; 2110 break; 2111 } 2112 2113 return (retval); 2114 } 2115 2116 static void 2117 e82545_write(struct pci_devinst *pi, int baridx, uint64_t offset, int size, 2118 uint64_t value) 2119 { 2120 struct e82545_softc *sc; 2121 2122 //DPRINTF("Write bar:%d offset:0x%lx value:0x%lx size:%d", baridx, offset, value, size); 2123 2124 sc = pi->pi_arg; 2125 2126 pthread_mutex_lock(&sc->esc_mtx); 2127 2128 switch (baridx) { 2129 case E82545_BAR_IO: 2130 switch (offset) { 2131 case E82545_IOADDR: 2132 if (size != 4) { 2133 DPRINTF("Wrong io addr write sz:%d value:0x%lx", size, value); 2134 } else 2135 sc->io_addr = (uint32_t)value; 2136 break; 2137 case E82545_IODATA: 2138 if (size != 4) { 2139 DPRINTF("Wrong io data write size:%d value:0x%lx", size, value); 2140 } else if (sc->io_addr > E82545_IO_REGISTER_MAX) { 2141 DPRINTF("Non-register io write addr:0x%x value:0x%lx", sc->io_addr, value); 2142 } else 2143 e82545_write_register(sc, sc->io_addr, 2144 (uint32_t)value); 2145 break; 2146 default: 2147 DPRINTF("Unknown io bar write offset:0x%lx value:0x%lx size:%d", offset, value, size); 2148 break; 2149 } 2150 break; 2151 case E82545_BAR_REGISTER: 2152 if (size != 4) { 2153 DPRINTF("Wrong register write size:%d offset:0x%lx value:0x%lx", size, offset, value); 2154 } else 2155 e82545_write_register(sc, (uint32_t)offset, 2156 (uint32_t)value); 2157 break; 2158 default: 2159 DPRINTF("Unknown write bar:%d off:0x%lx val:0x%lx size:%d", 2160 baridx, offset, value, size); 2161 } 2162 2163 pthread_mutex_unlock(&sc->esc_mtx); 2164 } 2165 2166 static uint64_t 2167 e82545_read(struct pci_devinst *pi, int baridx, uint64_t offset, int size) 2168 { 2169 struct e82545_softc *sc; 2170 uint64_t retval; 2171 2172 //DPRINTF("Read bar:%d offset:0x%lx size:%d", baridx, offset, size); 2173 sc = pi->pi_arg; 2174 retval = 0; 2175 2176 pthread_mutex_lock(&sc->esc_mtx); 2177 2178 switch (baridx) { 2179 case E82545_BAR_IO: 2180 switch (offset) { 2181 case E82545_IOADDR: 2182 if (size != 4) { 2183 DPRINTF("Wrong io addr read sz:%d", size); 2184 } else 2185 retval = sc->io_addr; 2186 break; 2187 case E82545_IODATA: 2188 if (size != 4) { 2189 DPRINTF("Wrong io data read sz:%d", size); 2190 } 2191 if (sc->io_addr > E82545_IO_REGISTER_MAX) { 2192 DPRINTF("Non-register io read addr:0x%x", 2193 sc->io_addr); 2194 } else 2195 retval = e82545_read_register(sc, sc->io_addr); 2196 break; 2197 default: 2198 DPRINTF("Unknown io bar read offset:0x%lx size:%d", 2199 offset, size); 2200 break; 2201 } 2202 break; 2203 case E82545_BAR_REGISTER: 2204 if (size != 4) { 2205 DPRINTF("Wrong register read size:%d offset:0x%lx", 2206 size, offset); 2207 } else 2208 retval = e82545_read_register(sc, (uint32_t)offset); 2209 break; 2210 default: 2211 DPRINTF("Unknown read bar:%d offset:0x%lx size:%d", 2212 baridx, offset, size); 2213 break; 2214 } 2215 2216 pthread_mutex_unlock(&sc->esc_mtx); 2217 2218 return (retval); 2219 } 2220 2221 static void 2222 e82545_reset(struct e82545_softc *sc, int drvr) 2223 { 2224 int i; 2225 2226 e82545_rx_disable(sc); 2227 e82545_tx_disable(sc); 2228 2229 /* clear outstanding interrupts */ 2230 if (sc->esc_irq_asserted) 2231 pci_lintr_deassert(sc->esc_pi); 2232 2233 /* misc */ 2234 if (!drvr) { 2235 sc->esc_FCAL = 0; 2236 sc->esc_FCAH = 0; 2237 sc->esc_FCT = 0; 2238 sc->esc_VET = 0; 2239 sc->esc_FCTTV = 0; 2240 } 2241 sc->esc_LEDCTL = 0x07061302; 2242 sc->esc_PBA = 0x00100030; 2243 2244 /* start nvm in opcode mode. */ 2245 sc->nvm_opaddr = 0; 2246 sc->nvm_mode = E82545_NVM_MODE_OPADDR; 2247 sc->nvm_bits = E82545_NVM_OPADDR_BITS; 2248 sc->eeprom_control = E1000_EECD_PRES | E82545_EECD_FWE_EN; 2249 e82545_init_eeprom(sc); 2250 2251 /* interrupt */ 2252 sc->esc_ICR = 0; 2253 sc->esc_ITR = 250; 2254 sc->esc_ICS = 0; 2255 sc->esc_IMS = 0; 2256 sc->esc_IMC = 0; 2257 2258 /* L2 filters */ 2259 if (!drvr) { 2260 memset(sc->esc_fvlan, 0, sizeof(sc->esc_fvlan)); 2261 memset(sc->esc_fmcast, 0, sizeof(sc->esc_fmcast)); 2262 memset(sc->esc_uni, 0, sizeof(sc->esc_uni)); 2263 2264 /* XXX not necessary on 82545 ?? */ 2265 sc->esc_uni[0].eu_valid = 1; 2266 memcpy(sc->esc_uni[0].eu_eth.octet, sc->esc_mac.octet, 2267 ETHER_ADDR_LEN); 2268 } else { 2269 /* Clear RAH valid bits */ 2270 for (i = 0; i < 16; i++) 2271 sc->esc_uni[i].eu_valid = 0; 2272 } 2273 2274 /* receive */ 2275 if (!drvr) { 2276 sc->esc_RDBAL = 0; 2277 sc->esc_RDBAH = 0; 2278 } 2279 sc->esc_RCTL = 0; 2280 sc->esc_FCRTL = 0; 2281 sc->esc_FCRTH = 0; 2282 sc->esc_RDLEN = 0; 2283 sc->esc_RDH = 0; 2284 sc->esc_RDT = 0; 2285 sc->esc_RDTR = 0; 2286 sc->esc_RXDCTL = (1 << 24) | (1 << 16); /* default GRAN/WTHRESH */ 2287 sc->esc_RADV = 0; 2288 sc->esc_RXCSUM = 0; 2289 2290 /* transmit */ 2291 if (!drvr) { 2292 sc->esc_TDBAL = 0; 2293 sc->esc_TDBAH = 0; 2294 sc->esc_TIPG = 0; 2295 sc->esc_AIT = 0; 2296 sc->esc_TIDV = 0; 2297 sc->esc_TADV = 0; 2298 } 2299 sc->esc_tdba = 0; 2300 sc->esc_txdesc = NULL; 2301 sc->esc_TXCW = 0; 2302 sc->esc_TCTL = 0; 2303 sc->esc_TDLEN = 0; 2304 sc->esc_TDT = 0; 2305 sc->esc_TDHr = sc->esc_TDH = 0; 2306 sc->esc_TXDCTL = 0; 2307 } 2308 2309 static int 2310 e82545_init(struct pci_devinst *pi, nvlist_t *nvl) 2311 { 2312 char nstr[80]; 2313 struct e82545_softc *sc; 2314 const char *mac; 2315 int err; 2316 2317 /* Setup our softc */ 2318 sc = calloc(1, sizeof(*sc)); 2319 2320 pi->pi_arg = sc; 2321 sc->esc_pi = pi; 2322 sc->esc_ctx = pi->pi_vmctx; 2323 2324 pthread_mutex_init(&sc->esc_mtx, NULL); 2325 pthread_cond_init(&sc->esc_rx_cond, NULL); 2326 pthread_cond_init(&sc->esc_tx_cond, NULL); 2327 pthread_create(&sc->esc_tx_tid, NULL, e82545_tx_thread, sc); 2328 snprintf(nstr, sizeof(nstr), "e82545-%d:%d tx", pi->pi_slot, 2329 pi->pi_func); 2330 pthread_set_name_np(sc->esc_tx_tid, nstr); 2331 2332 pci_set_cfgdata16(pi, PCIR_DEVICE, E82545_DEV_ID_82545EM_COPPER); 2333 pci_set_cfgdata16(pi, PCIR_VENDOR, E82545_VENDOR_ID_INTEL); 2334 pci_set_cfgdata8(pi, PCIR_CLASS, PCIC_NETWORK); 2335 pci_set_cfgdata8(pi, PCIR_SUBCLASS, PCIS_NETWORK_ETHERNET); 2336 pci_set_cfgdata16(pi, PCIR_SUBDEV_0, E82545_SUBDEV_ID); 2337 pci_set_cfgdata16(pi, PCIR_SUBVEND_0, E82545_VENDOR_ID_INTEL); 2338 2339 pci_set_cfgdata8(pi, PCIR_HDRTYPE, PCIM_HDRTYPE_NORMAL); 2340 pci_set_cfgdata8(pi, PCIR_INTPIN, 0x1); 2341 2342 /* TODO: this card also supports msi, but the freebsd driver for it 2343 * does not, so I have not implemented it. */ 2344 pci_lintr_request(pi); 2345 2346 pci_emul_alloc_bar(pi, E82545_BAR_REGISTER, PCIBAR_MEM32, 2347 E82545_BAR_REGISTER_LEN); 2348 pci_emul_alloc_bar(pi, E82545_BAR_FLASH, PCIBAR_MEM32, 2349 E82545_BAR_FLASH_LEN); 2350 pci_emul_alloc_bar(pi, E82545_BAR_IO, PCIBAR_IO, 2351 E82545_BAR_IO_LEN); 2352 2353 mac = get_config_value_node(nvl, "mac"); 2354 if (mac != NULL) { 2355 err = net_parsemac(mac, sc->esc_mac.octet); 2356 if (err) { 2357 free(sc); 2358 return (err); 2359 } 2360 } else 2361 net_genmac(pi, sc->esc_mac.octet); 2362 2363 err = netbe_init(&sc->esc_be, nvl, e82545_rx_callback, sc); 2364 if (err) { 2365 free(sc); 2366 return (err); 2367 } 2368 2369 netbe_rx_enable(sc->esc_be); 2370 2371 /* H/w initiated reset */ 2372 e82545_reset(sc, 0); 2373 2374 return (0); 2375 } 2376 2377 #ifdef BHYVE_SNAPSHOT 2378 static int 2379 e82545_snapshot(struct vm_snapshot_meta *meta) 2380 { 2381 int i; 2382 int ret; 2383 struct e82545_softc *sc; 2384 struct pci_devinst *pi; 2385 uint64_t bitmap_value; 2386 2387 pi = meta->dev_data; 2388 sc = pi->pi_arg; 2389 2390 /* esc_mevp and esc_mevpitr should be reinitiated at init. */ 2391 SNAPSHOT_VAR_OR_LEAVE(sc->esc_mac, meta, ret, done); 2392 2393 /* General */ 2394 SNAPSHOT_VAR_OR_LEAVE(sc->esc_CTRL, meta, ret, done); 2395 SNAPSHOT_VAR_OR_LEAVE(sc->esc_FCAL, meta, ret, done); 2396 SNAPSHOT_VAR_OR_LEAVE(sc->esc_FCAH, meta, ret, done); 2397 SNAPSHOT_VAR_OR_LEAVE(sc->esc_FCT, meta, ret, done); 2398 SNAPSHOT_VAR_OR_LEAVE(sc->esc_VET, meta, ret, done); 2399 SNAPSHOT_VAR_OR_LEAVE(sc->esc_FCTTV, meta, ret, done); 2400 SNAPSHOT_VAR_OR_LEAVE(sc->esc_LEDCTL, meta, ret, done); 2401 SNAPSHOT_VAR_OR_LEAVE(sc->esc_PBA, meta, ret, done); 2402 2403 /* Interrupt control */ 2404 SNAPSHOT_VAR_OR_LEAVE(sc->esc_irq_asserted, meta, ret, done); 2405 SNAPSHOT_VAR_OR_LEAVE(sc->esc_ICR, meta, ret, done); 2406 SNAPSHOT_VAR_OR_LEAVE(sc->esc_ITR, meta, ret, done); 2407 SNAPSHOT_VAR_OR_LEAVE(sc->esc_ICS, meta, ret, done); 2408 SNAPSHOT_VAR_OR_LEAVE(sc->esc_IMS, meta, ret, done); 2409 SNAPSHOT_VAR_OR_LEAVE(sc->esc_IMC, meta, ret, done); 2410 2411 /* 2412 * Transmit 2413 * 2414 * The fields in the unions are in superposition to access certain 2415 * bytes in the larger uint variables. 2416 * e.g., ip_config = [ipcss|ipcso|ipcse0|ipcse1] 2417 */ 2418 SNAPSHOT_VAR_OR_LEAVE(sc->esc_txctx.lower_setup.ip_config, meta, ret, done); 2419 SNAPSHOT_VAR_OR_LEAVE(sc->esc_txctx.upper_setup.tcp_config, meta, ret, done); 2420 SNAPSHOT_VAR_OR_LEAVE(sc->esc_txctx.cmd_and_length, meta, ret, done); 2421 SNAPSHOT_VAR_OR_LEAVE(sc->esc_txctx.tcp_seg_setup.data, meta, ret, done); 2422 2423 SNAPSHOT_VAR_OR_LEAVE(sc->esc_tx_enabled, meta, ret, done); 2424 SNAPSHOT_VAR_OR_LEAVE(sc->esc_tx_active, meta, ret, done); 2425 SNAPSHOT_VAR_OR_LEAVE(sc->esc_TXCW, meta, ret, done); 2426 SNAPSHOT_VAR_OR_LEAVE(sc->esc_TCTL, meta, ret, done); 2427 SNAPSHOT_VAR_OR_LEAVE(sc->esc_TIPG, meta, ret, done); 2428 SNAPSHOT_VAR_OR_LEAVE(sc->esc_AIT, meta, ret, done); 2429 SNAPSHOT_VAR_OR_LEAVE(sc->esc_tdba, meta, ret, done); 2430 SNAPSHOT_VAR_OR_LEAVE(sc->esc_TDBAL, meta, ret, done); 2431 SNAPSHOT_VAR_OR_LEAVE(sc->esc_TDBAH, meta, ret, done); 2432 SNAPSHOT_VAR_OR_LEAVE(sc->esc_TDLEN, meta, ret, done); 2433 SNAPSHOT_VAR_OR_LEAVE(sc->esc_TDH, meta, ret, done); 2434 SNAPSHOT_VAR_OR_LEAVE(sc->esc_TDHr, meta, ret, done); 2435 SNAPSHOT_VAR_OR_LEAVE(sc->esc_TDT, meta, ret, done); 2436 SNAPSHOT_VAR_OR_LEAVE(sc->esc_TIDV, meta, ret, done); 2437 SNAPSHOT_VAR_OR_LEAVE(sc->esc_TXDCTL, meta, ret, done); 2438 SNAPSHOT_VAR_OR_LEAVE(sc->esc_TADV, meta, ret, done); 2439 2440 /* Has dependency on esc_TDLEN; reoreder of fields from struct. */ 2441 SNAPSHOT_GUEST2HOST_ADDR_OR_LEAVE(pi->pi_vmctx, sc->esc_txdesc, 2442 sc->esc_TDLEN, true, meta, ret, done); 2443 2444 /* L2 frame acceptance */ 2445 for (i = 0; i < (int)nitems(sc->esc_uni); i++) { 2446 SNAPSHOT_VAR_OR_LEAVE(sc->esc_uni[i].eu_valid, meta, ret, done); 2447 SNAPSHOT_VAR_OR_LEAVE(sc->esc_uni[i].eu_addrsel, meta, ret, done); 2448 SNAPSHOT_VAR_OR_LEAVE(sc->esc_uni[i].eu_eth, meta, ret, done); 2449 } 2450 2451 SNAPSHOT_BUF_OR_LEAVE(sc->esc_fmcast, sizeof(sc->esc_fmcast), 2452 meta, ret, done); 2453 SNAPSHOT_BUF_OR_LEAVE(sc->esc_fvlan, sizeof(sc->esc_fvlan), 2454 meta, ret, done); 2455 2456 /* Receive */ 2457 SNAPSHOT_VAR_OR_LEAVE(sc->esc_rx_enabled, meta, ret, done); 2458 SNAPSHOT_VAR_OR_LEAVE(sc->esc_rx_active, meta, ret, done); 2459 SNAPSHOT_VAR_OR_LEAVE(sc->esc_rx_loopback, meta, ret, done); 2460 SNAPSHOT_VAR_OR_LEAVE(sc->esc_RCTL, meta, ret, done); 2461 SNAPSHOT_VAR_OR_LEAVE(sc->esc_FCRTL, meta, ret, done); 2462 SNAPSHOT_VAR_OR_LEAVE(sc->esc_FCRTH, meta, ret, done); 2463 SNAPSHOT_VAR_OR_LEAVE(sc->esc_rdba, meta, ret, done); 2464 SNAPSHOT_VAR_OR_LEAVE(sc->esc_RDBAL, meta, ret, done); 2465 SNAPSHOT_VAR_OR_LEAVE(sc->esc_RDBAH, meta, ret, done); 2466 SNAPSHOT_VAR_OR_LEAVE(sc->esc_RDLEN, meta, ret, done); 2467 SNAPSHOT_VAR_OR_LEAVE(sc->esc_RDH, meta, ret, done); 2468 SNAPSHOT_VAR_OR_LEAVE(sc->esc_RDT, meta, ret, done); 2469 SNAPSHOT_VAR_OR_LEAVE(sc->esc_RDTR, meta, ret, done); 2470 SNAPSHOT_VAR_OR_LEAVE(sc->esc_RXDCTL, meta, ret, done); 2471 SNAPSHOT_VAR_OR_LEAVE(sc->esc_RADV, meta, ret, done); 2472 SNAPSHOT_VAR_OR_LEAVE(sc->esc_RSRPD, meta, ret, done); 2473 SNAPSHOT_VAR_OR_LEAVE(sc->esc_RXCSUM, meta, ret, done); 2474 2475 /* Has dependency on esc_RDLEN; reoreder of fields from struct. */ 2476 SNAPSHOT_GUEST2HOST_ADDR_OR_LEAVE(pi->pi_vmctx, sc->esc_rxdesc, 2477 sc->esc_TDLEN, true, meta, ret, done); 2478 2479 /* IO Port register access */ 2480 SNAPSHOT_VAR_OR_LEAVE(sc->io_addr, meta, ret, done); 2481 2482 /* Shadow copy of MDIC */ 2483 SNAPSHOT_VAR_OR_LEAVE(sc->mdi_control, meta, ret, done); 2484 2485 /* Shadow copy of EECD */ 2486 SNAPSHOT_VAR_OR_LEAVE(sc->eeprom_control, meta, ret, done); 2487 2488 /* Latest NVM in/out */ 2489 SNAPSHOT_VAR_OR_LEAVE(sc->nvm_data, meta, ret, done); 2490 SNAPSHOT_VAR_OR_LEAVE(sc->nvm_opaddr, meta, ret, done); 2491 2492 /* Stats */ 2493 SNAPSHOT_VAR_OR_LEAVE(sc->missed_pkt_count, meta, ret, done); 2494 SNAPSHOT_BUF_OR_LEAVE(sc->pkt_rx_by_size, sizeof(sc->pkt_rx_by_size), 2495 meta, ret, done); 2496 SNAPSHOT_BUF_OR_LEAVE(sc->pkt_tx_by_size, sizeof(sc->pkt_tx_by_size), 2497 meta, ret, done); 2498 SNAPSHOT_VAR_OR_LEAVE(sc->good_pkt_rx_count, meta, ret, done); 2499 SNAPSHOT_VAR_OR_LEAVE(sc->bcast_pkt_rx_count, meta, ret, done); 2500 SNAPSHOT_VAR_OR_LEAVE(sc->mcast_pkt_rx_count, meta, ret, done); 2501 SNAPSHOT_VAR_OR_LEAVE(sc->good_pkt_tx_count, meta, ret, done); 2502 SNAPSHOT_VAR_OR_LEAVE(sc->bcast_pkt_tx_count, meta, ret, done); 2503 SNAPSHOT_VAR_OR_LEAVE(sc->mcast_pkt_tx_count, meta, ret, done); 2504 SNAPSHOT_VAR_OR_LEAVE(sc->oversize_rx_count, meta, ret, done); 2505 SNAPSHOT_VAR_OR_LEAVE(sc->tso_tx_count, meta, ret, done); 2506 SNAPSHOT_VAR_OR_LEAVE(sc->good_octets_rx, meta, ret, done); 2507 SNAPSHOT_VAR_OR_LEAVE(sc->good_octets_tx, meta, ret, done); 2508 SNAPSHOT_VAR_OR_LEAVE(sc->missed_octets, meta, ret, done); 2509 2510 if (meta->op == VM_SNAPSHOT_SAVE) 2511 bitmap_value = sc->nvm_bits; 2512 SNAPSHOT_VAR_OR_LEAVE(bitmap_value, meta, ret, done); 2513 if (meta->op == VM_SNAPSHOT_RESTORE) 2514 sc->nvm_bits = bitmap_value; 2515 2516 if (meta->op == VM_SNAPSHOT_SAVE) 2517 bitmap_value = sc->nvm_bits; 2518 SNAPSHOT_VAR_OR_LEAVE(bitmap_value, meta, ret, done); 2519 if (meta->op == VM_SNAPSHOT_RESTORE) 2520 sc->nvm_bits = bitmap_value; 2521 2522 /* EEPROM data */ 2523 SNAPSHOT_BUF_OR_LEAVE(sc->eeprom_data, sizeof(sc->eeprom_data), 2524 meta, ret, done); 2525 2526 done: 2527 return (ret); 2528 } 2529 #endif 2530 2531 static const struct pci_devemu pci_de_e82545 = { 2532 .pe_emu = "e1000", 2533 .pe_init = e82545_init, 2534 .pe_legacy_config = netbe_legacy_config, 2535 .pe_barwrite = e82545_write, 2536 .pe_barread = e82545_read, 2537 #ifdef BHYVE_SNAPSHOT 2538 .pe_snapshot = e82545_snapshot, 2539 #endif 2540 }; 2541 PCI_EMUL_SET(pci_de_e82545); 2542