1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* Copyright (c) 2018 Intel Corporation */ 3 4 #ifndef _IGC_H_ 5 #define _IGC_H_ 6 7 #include <linux/kobject.h> 8 #include <linux/pci.h> 9 #include <linux/netdevice.h> 10 #include <linux/vmalloc.h> 11 #include <linux/ethtool.h> 12 #include <linux/sctp.h> 13 #include <linux/ptp_clock_kernel.h> 14 #include <linux/timecounter.h> 15 #include <linux/net_tstamp.h> 16 #include <linux/bitfield.h> 17 #include <linux/hrtimer.h> 18 #include <net/xdp.h> 19 20 #include "igc_hw.h" 21 22 void igc_ethtool_set_ops(struct net_device *); 23 24 /* Transmit and receive queues */ 25 #define IGC_MAX_RX_QUEUES 4 26 #define IGC_MAX_TX_QUEUES 4 27 28 #define MAX_Q_VECTORS 8 29 #define MAX_STD_JUMBO_FRAME_SIZE 9216 30 31 #define MAX_ETYPE_FILTER 8 32 #define IGC_RETA_SIZE 128 33 34 /* SDP support */ 35 #define IGC_N_EXTTS 2 36 #define IGC_N_PEROUT 2 37 #define IGC_N_SDP 4 38 39 #define MAX_FLEX_FILTER 32 40 41 #define IGC_MAX_TX_TSTAMP_REGS 4 42 43 enum igc_mac_filter_type { 44 IGC_MAC_FILTER_TYPE_DST = 0, 45 IGC_MAC_FILTER_TYPE_SRC 46 }; 47 48 struct igc_tx_queue_stats { 49 u64 packets; 50 u64 bytes; 51 u64 restart_queue; 52 u64 restart_queue2; 53 }; 54 55 struct igc_rx_queue_stats { 56 u64 packets; 57 u64 bytes; 58 u64 drops; 59 u64 csum_err; 60 u64 alloc_failed; 61 }; 62 63 struct igc_rx_packet_stats { 64 u64 ipv4_packets; /* IPv4 headers processed */ 65 u64 ipv4e_packets; /* IPv4E headers with extensions processed */ 66 u64 ipv6_packets; /* IPv6 headers processed */ 67 u64 ipv6e_packets; /* IPv6E headers with extensions processed */ 68 u64 tcp_packets; /* TCP headers processed */ 69 u64 udp_packets; /* UDP headers processed */ 70 u64 sctp_packets; /* SCTP headers processed */ 71 u64 nfs_packets; /* NFS headers processe */ 72 u64 other_packets; 73 }; 74 75 enum igc_tx_buffer_type { 76 IGC_TX_BUFFER_TYPE_SKB, 77 IGC_TX_BUFFER_TYPE_XDP, 78 IGC_TX_BUFFER_TYPE_XSK, 79 }; 80 81 /* wrapper around a pointer to a socket buffer, 82 * so a DMA handle can be stored along with the buffer 83 */ 84 struct igc_tx_buffer { 85 union igc_adv_tx_desc *next_to_watch; 86 unsigned long time_stamp; 87 enum igc_tx_buffer_type type; 88 union { 89 struct sk_buff *skb; 90 struct xdp_frame *xdpf; 91 }; 92 unsigned int bytecount; 93 u16 gso_segs; 94 __be16 protocol; 95 96 DEFINE_DMA_UNMAP_ADDR(dma); 97 DEFINE_DMA_UNMAP_LEN(len); 98 u32 tx_flags; 99 bool xsk_pending_ts; 100 }; 101 102 struct igc_tx_timestamp_request { 103 union { /* reference to the packet being timestamped */ 104 struct sk_buff *skb; 105 struct igc_tx_buffer *xsk_tx_buffer; 106 }; 107 enum igc_tx_buffer_type buffer_type; 108 unsigned long start; /* when the tstamp request started (jiffies) */ 109 u32 mask; /* _TSYNCTXCTL_TXTT_{X} bit for this request */ 110 u32 regl; /* which TXSTMPL_{X} register should be used */ 111 u32 regh; /* which TXSTMPH_{X} register should be used */ 112 u32 flags; /* flags that should be added to the tx_buffer */ 113 u8 xsk_queue_index; /* Tx queue which requesting timestamp */ 114 struct xsk_tx_metadata_compl xsk_meta; /* ref to xsk Tx metadata */ 115 }; 116 117 struct igc_inline_rx_tstamps { 118 /* Timestamps are saved in little endian at the beginning of the packet 119 * buffer following the layout: 120 * 121 * DWORD: | 0 | 1 | 2 | 3 | 122 * Field: | Timer1 SYSTIML | Timer1 SYSTIMH | Timer0 SYSTIML | Timer0 SYSTIMH | 123 * 124 * SYSTIML holds the nanoseconds part while SYSTIMH holds the seconds 125 * part of the timestamp. 126 * 127 */ 128 __le32 timer1[2]; 129 __le32 timer0[2]; 130 }; 131 132 struct igc_ring_container { 133 struct igc_ring *ring; /* pointer to linked list of rings */ 134 unsigned int total_bytes; /* total bytes processed this int */ 135 unsigned int total_packets; /* total packets processed this int */ 136 u16 work_limit; /* total work allowed per interrupt */ 137 u8 count; /* total number of rings in vector */ 138 u8 itr; /* current ITR setting for ring */ 139 }; 140 141 struct igc_ring { 142 struct igc_q_vector *q_vector; /* backlink to q_vector */ 143 struct net_device *netdev; /* back pointer to net_device */ 144 struct device *dev; /* device for dma mapping */ 145 union { /* array of buffer info structs */ 146 struct igc_tx_buffer *tx_buffer_info; 147 struct igc_rx_buffer *rx_buffer_info; 148 }; 149 void *desc; /* descriptor ring memory */ 150 unsigned long flags; /* ring specific flags */ 151 void __iomem *tail; /* pointer to ring tail register */ 152 dma_addr_t dma; /* phys address of the ring */ 153 unsigned int size; /* length of desc. ring in bytes */ 154 155 u16 count; /* number of desc. in the ring */ 156 u8 queue_index; /* logical index of the ring*/ 157 u8 reg_idx; /* physical index of the ring */ 158 bool launchtime_enable; /* true if LaunchTime is enabled */ 159 ktime_t last_tx_cycle; /* end of the cycle with a launchtime transmission */ 160 ktime_t last_ff_cycle; /* Last cycle with an active first flag */ 161 162 u32 start_time; 163 u32 end_time; 164 u32 max_sdu; 165 bool oper_gate_closed; /* Operating gate. True if the TX Queue is closed */ 166 bool admin_gate_closed; /* Future gate. True if the TX Queue will be closed */ 167 168 /* CBS parameters */ 169 bool cbs_enable; /* indicates if CBS is enabled */ 170 s32 idleslope; /* idleSlope in kbps */ 171 s32 sendslope; /* sendSlope in kbps */ 172 s32 hicredit; /* hiCredit in bytes */ 173 s32 locredit; /* loCredit in bytes */ 174 175 /* everything past this point are written often */ 176 u16 next_to_clean; 177 u16 next_to_use; 178 u16 next_to_alloc; 179 180 union { 181 /* TX */ 182 struct { 183 struct igc_tx_queue_stats tx_stats; 184 struct u64_stats_sync tx_syncp; 185 struct u64_stats_sync tx_syncp2; 186 }; 187 /* RX */ 188 struct { 189 struct igc_rx_queue_stats rx_stats; 190 struct igc_rx_packet_stats pkt_stats; 191 struct u64_stats_sync rx_syncp; 192 struct sk_buff *skb; 193 }; 194 }; 195 196 struct xdp_rxq_info xdp_rxq; 197 struct xsk_buff_pool *xsk_pool; 198 } ____cacheline_internodealigned_in_smp; 199 200 /* Board specific private data structure */ 201 struct igc_adapter { 202 struct net_device *netdev; 203 204 struct ethtool_keee eee; 205 206 unsigned long state; 207 unsigned int flags; 208 unsigned int num_q_vectors; 209 210 struct msix_entry *msix_entries; 211 212 /* TX */ 213 u16 tx_work_limit; 214 u32 tx_timeout_count; 215 int num_tx_queues; 216 struct igc_ring *tx_ring[IGC_MAX_TX_QUEUES]; 217 218 /* RX */ 219 int num_rx_queues; 220 struct igc_ring *rx_ring[IGC_MAX_RX_QUEUES]; 221 222 struct timer_list watchdog_timer; 223 struct timer_list dma_err_timer; 224 struct timer_list phy_info_timer; 225 struct hrtimer hrtimer; 226 227 u32 wol; 228 u32 en_mng_pt; 229 u16 link_speed; 230 u16 link_duplex; 231 232 u8 port_num; 233 234 u8 __iomem *io_addr; 235 /* Interrupt Throttle Rate */ 236 u32 rx_itr_setting; 237 u32 tx_itr_setting; 238 239 struct work_struct reset_task; 240 struct work_struct watchdog_task; 241 struct work_struct dma_err_task; 242 bool fc_autoneg; 243 244 u8 tx_timeout_factor; 245 246 int msg_enable; 247 u32 max_frame_size; 248 u32 min_frame_size; 249 250 int tc_setup_type; 251 ktime_t base_time; 252 ktime_t cycle_time; 253 bool taprio_offload_enable; 254 u32 qbv_config_change_errors; 255 bool qbv_transition; 256 unsigned int qbv_count; 257 /* Access to oper_gate_closed, admin_gate_closed and qbv_transition 258 * are protected by the qbv_tx_lock. 259 */ 260 spinlock_t qbv_tx_lock; 261 262 /* OS defined structs */ 263 struct pci_dev *pdev; 264 /* lock for statistics */ 265 spinlock_t stats64_lock; 266 struct rtnl_link_stats64 stats64; 267 268 /* structs defined in igc_hw.h */ 269 struct igc_hw hw; 270 struct igc_hw_stats stats; 271 272 struct igc_q_vector *q_vector[MAX_Q_VECTORS]; 273 u32 eims_enable_mask; 274 u32 eims_other; 275 276 u16 tx_ring_count; 277 u16 rx_ring_count; 278 279 u32 tx_hwtstamp_timeouts; 280 u32 tx_hwtstamp_skipped; 281 u32 rx_hwtstamp_cleared; 282 283 u32 rss_queues; 284 u32 rss_indir_tbl_init; 285 286 /* Any access to elements in nfc_rule_list is protected by the 287 * nfc_rule_lock. 288 */ 289 struct mutex nfc_rule_lock; 290 struct list_head nfc_rule_list; 291 unsigned int nfc_rule_count; 292 293 u8 rss_indir_tbl[IGC_RETA_SIZE]; 294 295 unsigned long link_check_timeout; 296 struct igc_info ei; 297 298 u32 test_icr; 299 300 struct ptp_clock *ptp_clock; 301 struct ptp_clock_info ptp_caps; 302 /* Access to ptp_tx_skb and ptp_tx_start are protected by the 303 * ptp_tx_lock. 304 */ 305 spinlock_t ptp_tx_lock; 306 struct igc_tx_timestamp_request tx_tstamp[IGC_MAX_TX_TSTAMP_REGS]; 307 struct hwtstamp_config tstamp_config; 308 unsigned int ptp_flags; 309 /* System time value lock */ 310 spinlock_t tmreg_lock; 311 /* Free-running timer lock */ 312 spinlock_t free_timer_lock; 313 struct cyclecounter cc; 314 struct timecounter tc; 315 struct timespec64 prev_ptp_time; /* Pre-reset PTP clock */ 316 ktime_t ptp_reset_start; /* Reset time in clock mono */ 317 struct system_time_snapshot snapshot; 318 319 char fw_version[32]; 320 321 struct bpf_prog *xdp_prog; 322 323 bool pps_sys_wrap_on; 324 325 struct ptp_pin_desc sdp_config[IGC_N_SDP]; 326 struct { 327 struct timespec64 start; 328 struct timespec64 period; 329 } perout[IGC_N_PEROUT]; 330 331 /* LEDs */ 332 struct mutex led_mutex; 333 struct igc_led_classdev *leds; 334 }; 335 336 void igc_up(struct igc_adapter *adapter); 337 void igc_down(struct igc_adapter *adapter); 338 int igc_open(struct net_device *netdev); 339 int igc_close(struct net_device *netdev); 340 int igc_setup_tx_resources(struct igc_ring *ring); 341 int igc_setup_rx_resources(struct igc_ring *ring); 342 void igc_free_tx_resources(struct igc_ring *ring); 343 void igc_free_rx_resources(struct igc_ring *ring); 344 unsigned int igc_get_max_rss_queues(struct igc_adapter *adapter); 345 void igc_set_flag_queue_pairs(struct igc_adapter *adapter, 346 const u32 max_rss_queues); 347 int igc_reinit_queues(struct igc_adapter *adapter); 348 void igc_write_rss_indir_tbl(struct igc_adapter *adapter); 349 bool igc_has_link(struct igc_adapter *adapter); 350 void igc_reset(struct igc_adapter *adapter); 351 void igc_update_stats(struct igc_adapter *adapter); 352 void igc_disable_rx_ring(struct igc_ring *ring); 353 void igc_enable_rx_ring(struct igc_ring *ring); 354 void igc_disable_tx_ring(struct igc_ring *ring); 355 void igc_enable_tx_ring(struct igc_ring *ring); 356 int igc_xsk_wakeup(struct net_device *dev, u32 queue_id, u32 flags); 357 358 /* AF_XDP TX metadata operations */ 359 extern const struct xsk_tx_metadata_ops igc_xsk_tx_metadata_ops; 360 361 /* igc_dump declarations */ 362 void igc_rings_dump(struct igc_adapter *adapter); 363 void igc_regs_dump(struct igc_adapter *adapter); 364 365 extern char igc_driver_name[]; 366 367 #define IGC_REGS_LEN 740 368 369 /* flags controlling PTP/1588 function */ 370 #define IGC_PTP_ENABLED BIT(0) 371 372 /* Flags definitions */ 373 #define IGC_FLAG_HAS_MSI BIT(0) 374 #define IGC_FLAG_QUEUE_PAIRS BIT(3) 375 #define IGC_FLAG_DMAC BIT(4) 376 #define IGC_FLAG_PTP BIT(8) 377 #define IGC_FLAG_WOL_SUPPORTED BIT(8) 378 #define IGC_FLAG_NEED_LINK_UPDATE BIT(9) 379 #define IGC_FLAG_HAS_MSIX BIT(13) 380 #define IGC_FLAG_EEE BIT(14) 381 #define IGC_FLAG_VLAN_PROMISC BIT(15) 382 #define IGC_FLAG_RX_LEGACY BIT(16) 383 #define IGC_FLAG_TSN_QBV_ENABLED BIT(17) 384 #define IGC_FLAG_TSN_QAV_ENABLED BIT(18) 385 386 #define IGC_FLAG_TSN_ANY_ENABLED \ 387 (IGC_FLAG_TSN_QBV_ENABLED | IGC_FLAG_TSN_QAV_ENABLED) 388 389 #define IGC_FLAG_RSS_FIELD_IPV4_UDP BIT(6) 390 #define IGC_FLAG_RSS_FIELD_IPV6_UDP BIT(7) 391 392 #define IGC_MRQC_ENABLE_RSS_MQ 0x00000002 393 #define IGC_MRQC_RSS_FIELD_IPV4_UDP 0x00400000 394 #define IGC_MRQC_RSS_FIELD_IPV6_UDP 0x00800000 395 396 /* RX-desc Write-Back format RSS Type's */ 397 enum igc_rss_type_num { 398 IGC_RSS_TYPE_NO_HASH = 0, 399 IGC_RSS_TYPE_HASH_TCP_IPV4 = 1, 400 IGC_RSS_TYPE_HASH_IPV4 = 2, 401 IGC_RSS_TYPE_HASH_TCP_IPV6 = 3, 402 IGC_RSS_TYPE_HASH_IPV6_EX = 4, 403 IGC_RSS_TYPE_HASH_IPV6 = 5, 404 IGC_RSS_TYPE_HASH_TCP_IPV6_EX = 6, 405 IGC_RSS_TYPE_HASH_UDP_IPV4 = 7, 406 IGC_RSS_TYPE_HASH_UDP_IPV6 = 8, 407 IGC_RSS_TYPE_HASH_UDP_IPV6_EX = 9, 408 IGC_RSS_TYPE_MAX = 10, 409 }; 410 #define IGC_RSS_TYPE_MAX_TABLE 16 411 #define IGC_RSS_TYPE_MASK GENMASK(3,0) /* 4-bits (3:0) = mask 0x0F */ 412 413 /* igc_rss_type - Rx descriptor RSS type field */ 414 static inline u32 igc_rss_type(const union igc_adv_rx_desc *rx_desc) 415 { 416 /* RSS Type 4-bits (3:0) number: 0-9 (above 9 is reserved) 417 * Accessing the same bits via u16 (wb.lower.lo_dword.hs_rss.pkt_info) 418 * is slightly slower than via u32 (wb.lower.lo_dword.data) 419 */ 420 return le32_get_bits(rx_desc->wb.lower.lo_dword.data, IGC_RSS_TYPE_MASK); 421 } 422 423 /* Interrupt defines */ 424 #define IGC_START_ITR 648 /* ~6000 ints/sec */ 425 #define IGC_4K_ITR 980 426 #define IGC_20K_ITR 196 427 #define IGC_70K_ITR 56 428 429 #define IGC_DEFAULT_ITR 3 /* dynamic */ 430 #define IGC_MAX_ITR_USECS 10000 431 #define IGC_MIN_ITR_USECS 10 432 #define NON_Q_VECTORS 1 433 #define MAX_MSIX_ENTRIES 10 434 435 /* TX/RX descriptor defines */ 436 #define IGC_DEFAULT_TXD 256 437 #define IGC_DEFAULT_TX_WORK 128 438 #define IGC_MIN_TXD 64 439 #define IGC_MAX_TXD 4096 440 441 #define IGC_DEFAULT_RXD 256 442 #define IGC_MIN_RXD 64 443 #define IGC_MAX_RXD 4096 444 445 /* Supported Rx Buffer Sizes */ 446 #define IGC_RXBUFFER_256 256 447 #define IGC_RXBUFFER_2048 2048 448 #define IGC_RXBUFFER_3072 3072 449 450 #define AUTO_ALL_MODES 0 451 #define IGC_RX_HDR_LEN IGC_RXBUFFER_256 452 453 /* Transmit and receive latency (for PTP timestamps) */ 454 #define IGC_I225_TX_LATENCY_10 240 455 #define IGC_I225_TX_LATENCY_100 58 456 #define IGC_I225_TX_LATENCY_1000 80 457 #define IGC_I225_TX_LATENCY_2500 1325 458 #define IGC_I225_RX_LATENCY_10 6450 459 #define IGC_I225_RX_LATENCY_100 185 460 #define IGC_I225_RX_LATENCY_1000 300 461 #define IGC_I225_RX_LATENCY_2500 1485 462 463 /* RX and TX descriptor control thresholds. 464 * PTHRESH - MAC will consider prefetch if it has fewer than this number of 465 * descriptors available in its onboard memory. 466 * Setting this to 0 disables RX descriptor prefetch. 467 * HTHRESH - MAC will only prefetch if there are at least this many descriptors 468 * available in host memory. 469 * If PTHRESH is 0, this should also be 0. 470 * WTHRESH - RX descriptor writeback threshold - MAC will delay writing back 471 * descriptors until either it has this many to write back, or the 472 * ITR timer expires. 473 */ 474 #define IGC_RX_PTHRESH 8 475 #define IGC_RX_HTHRESH 8 476 #define IGC_TX_PTHRESH 8 477 #define IGC_TX_HTHRESH 1 478 #define IGC_RX_WTHRESH 4 479 #define IGC_TX_WTHRESH 16 480 481 #define IGC_RX_DMA_ATTR \ 482 (DMA_ATTR_SKIP_CPU_SYNC | DMA_ATTR_WEAK_ORDERING) 483 484 #define IGC_TS_HDR_LEN 16 485 486 #define IGC_SKB_PAD (NET_SKB_PAD + NET_IP_ALIGN) 487 488 #if (PAGE_SIZE < 8192) 489 #define IGC_MAX_FRAME_BUILD_SKB \ 490 (SKB_WITH_OVERHEAD(IGC_RXBUFFER_2048) - IGC_SKB_PAD - IGC_TS_HDR_LEN) 491 #else 492 #define IGC_MAX_FRAME_BUILD_SKB (IGC_RXBUFFER_2048 - IGC_TS_HDR_LEN) 493 #endif 494 495 /* How many Rx Buffers do we bundle into one write to the hardware ? */ 496 #define IGC_RX_BUFFER_WRITE 16 /* Must be power of 2 */ 497 498 /* VLAN info */ 499 #define IGC_TX_FLAGS_VLAN_MASK 0xffff0000 500 #define IGC_TX_FLAGS_VLAN_SHIFT 16 501 502 /* igc_test_staterr - tests bits within Rx descriptor status and error fields */ 503 static inline __le32 igc_test_staterr(union igc_adv_rx_desc *rx_desc, 504 const u32 stat_err_bits) 505 { 506 return rx_desc->wb.upper.status_error & cpu_to_le32(stat_err_bits); 507 } 508 509 enum igc_state_t { 510 __IGC_TESTING, 511 __IGC_RESETTING, 512 __IGC_DOWN, 513 }; 514 515 enum igc_tx_flags { 516 /* cmd_type flags */ 517 IGC_TX_FLAGS_VLAN = 0x01, 518 IGC_TX_FLAGS_TSO = 0x02, 519 IGC_TX_FLAGS_TSTAMP = 0x04, 520 521 /* olinfo flags */ 522 IGC_TX_FLAGS_IPV4 = 0x10, 523 IGC_TX_FLAGS_CSUM = 0x20, 524 525 IGC_TX_FLAGS_TSTAMP_1 = 0x100, 526 IGC_TX_FLAGS_TSTAMP_2 = 0x200, 527 IGC_TX_FLAGS_TSTAMP_3 = 0x400, 528 529 IGC_TX_FLAGS_TSTAMP_TIMER_1 = 0x800, 530 }; 531 532 enum igc_boards { 533 board_base, 534 }; 535 536 /* The largest size we can write to the descriptor is 65535. In order to 537 * maintain a power of two alignment we have to limit ourselves to 32K. 538 */ 539 #define IGC_MAX_TXD_PWR 15 540 #define IGC_MAX_DATA_PER_TXD BIT(IGC_MAX_TXD_PWR) 541 542 /* Tx Descriptors needed, worst case */ 543 #define TXD_USE_COUNT(S) DIV_ROUND_UP((S), IGC_MAX_DATA_PER_TXD) 544 #define DESC_NEEDED (MAX_SKB_FRAGS + 4) 545 546 struct igc_rx_buffer { 547 union { 548 struct { 549 dma_addr_t dma; 550 struct page *page; 551 #if (BITS_PER_LONG > 32) || (PAGE_SIZE >= 65536) 552 __u32 page_offset; 553 #else 554 __u16 page_offset; 555 #endif 556 __u16 pagecnt_bias; 557 }; 558 struct xdp_buff *xdp; 559 }; 560 }; 561 562 /* context wrapper around xdp_buff to provide access to descriptor metadata */ 563 struct igc_xdp_buff { 564 struct xdp_buff xdp; 565 union igc_adv_rx_desc *rx_desc; 566 struct igc_inline_rx_tstamps *rx_ts; /* data indication bit IGC_RXDADV_STAT_TSIP */ 567 }; 568 569 struct igc_metadata_request { 570 struct igc_tx_buffer *tx_buffer; 571 struct xsk_tx_metadata *meta; 572 struct igc_ring *tx_ring; 573 u32 cmd_type; 574 }; 575 576 struct igc_q_vector { 577 struct igc_adapter *adapter; /* backlink */ 578 void __iomem *itr_register; 579 u32 eims_value; /* EIMS mask value */ 580 581 u16 itr_val; 582 u8 set_itr; 583 584 struct igc_ring_container rx, tx; 585 586 struct napi_struct napi; 587 588 struct rcu_head rcu; /* to avoid race with update stats on free */ 589 char name[IFNAMSIZ + 9]; 590 591 /* for dynamic allocation of rings associated with this q_vector */ 592 struct igc_ring ring[] ____cacheline_internodealigned_in_smp; 593 }; 594 595 enum igc_filter_match_flags { 596 IGC_FILTER_FLAG_ETHER_TYPE = BIT(0), 597 IGC_FILTER_FLAG_VLAN_TCI = BIT(1), 598 IGC_FILTER_FLAG_SRC_MAC_ADDR = BIT(2), 599 IGC_FILTER_FLAG_DST_MAC_ADDR = BIT(3), 600 IGC_FILTER_FLAG_USER_DATA = BIT(4), 601 IGC_FILTER_FLAG_VLAN_ETYPE = BIT(5), 602 }; 603 604 struct igc_nfc_filter { 605 u8 match_flags; 606 u16 etype; 607 u16 vlan_etype; 608 u16 vlan_tci; 609 u16 vlan_tci_mask; 610 u8 src_addr[ETH_ALEN]; 611 u8 dst_addr[ETH_ALEN]; 612 u8 user_data[8]; 613 u8 user_mask[8]; 614 u8 flex_index; 615 u8 rx_queue; 616 u8 prio; 617 u8 immediate_irq; 618 u8 drop; 619 }; 620 621 struct igc_nfc_rule { 622 struct list_head list; 623 struct igc_nfc_filter filter; 624 u32 location; 625 u16 action; 626 bool flex; 627 }; 628 629 /* IGC supports a total of 32 NFC rules: 16 MAC address based, 8 VLAN priority 630 * based, 8 ethertype based and 32 Flex filter based rules. 631 */ 632 #define IGC_MAX_RXNFC_RULES 64 633 634 struct igc_flex_filter { 635 u8 index; 636 u8 data[128]; 637 u8 mask[16]; 638 u8 length; 639 u8 rx_queue; 640 u8 prio; 641 u8 immediate_irq; 642 u8 drop; 643 }; 644 645 /* igc_desc_unused - calculate if we have unused descriptors */ 646 static inline u16 igc_desc_unused(const struct igc_ring *ring) 647 { 648 u16 ntc = ring->next_to_clean; 649 u16 ntu = ring->next_to_use; 650 651 return ((ntc > ntu) ? 0 : ring->count) + ntc - ntu - 1; 652 } 653 654 static inline s32 igc_get_phy_info(struct igc_hw *hw) 655 { 656 if (hw->phy.ops.get_phy_info) 657 return hw->phy.ops.get_phy_info(hw); 658 659 return 0; 660 } 661 662 static inline s32 igc_reset_phy(struct igc_hw *hw) 663 { 664 if (hw->phy.ops.reset) 665 return hw->phy.ops.reset(hw); 666 667 return 0; 668 } 669 670 static inline struct netdev_queue *txring_txq(const struct igc_ring *tx_ring) 671 { 672 return netdev_get_tx_queue(tx_ring->netdev, tx_ring->queue_index); 673 } 674 675 enum igc_ring_flags_t { 676 IGC_RING_FLAG_RX_3K_BUFFER, 677 IGC_RING_FLAG_RX_BUILD_SKB_ENABLED, 678 IGC_RING_FLAG_RX_SCTP_CSUM, 679 IGC_RING_FLAG_RX_LB_VLAN_BSWAP, 680 IGC_RING_FLAG_TX_CTX_IDX, 681 IGC_RING_FLAG_TX_DETECT_HANG, 682 IGC_RING_FLAG_AF_XDP_ZC, 683 IGC_RING_FLAG_TX_HWTSTAMP, 684 }; 685 686 #define ring_uses_large_buffer(ring) \ 687 test_bit(IGC_RING_FLAG_RX_3K_BUFFER, &(ring)->flags) 688 #define set_ring_uses_large_buffer(ring) \ 689 set_bit(IGC_RING_FLAG_RX_3K_BUFFER, &(ring)->flags) 690 #define clear_ring_uses_large_buffer(ring) \ 691 clear_bit(IGC_RING_FLAG_RX_3K_BUFFER, &(ring)->flags) 692 693 #define ring_uses_build_skb(ring) \ 694 test_bit(IGC_RING_FLAG_RX_BUILD_SKB_ENABLED, &(ring)->flags) 695 696 static inline unsigned int igc_rx_bufsz(struct igc_ring *ring) 697 { 698 #if (PAGE_SIZE < 8192) 699 if (ring_uses_large_buffer(ring)) 700 return IGC_RXBUFFER_3072; 701 702 if (ring_uses_build_skb(ring)) 703 return IGC_MAX_FRAME_BUILD_SKB + IGC_TS_HDR_LEN; 704 #endif 705 return IGC_RXBUFFER_2048; 706 } 707 708 static inline unsigned int igc_rx_pg_order(struct igc_ring *ring) 709 { 710 #if (PAGE_SIZE < 8192) 711 if (ring_uses_large_buffer(ring)) 712 return 1; 713 #endif 714 return 0; 715 } 716 717 static inline s32 igc_read_phy_reg(struct igc_hw *hw, u32 offset, u16 *data) 718 { 719 if (hw->phy.ops.read_reg) 720 return hw->phy.ops.read_reg(hw, offset, data); 721 722 return -EOPNOTSUPP; 723 } 724 725 void igc_reinit_locked(struct igc_adapter *); 726 struct igc_nfc_rule *igc_get_nfc_rule(struct igc_adapter *adapter, 727 u32 location); 728 int igc_add_nfc_rule(struct igc_adapter *adapter, struct igc_nfc_rule *rule); 729 void igc_del_nfc_rule(struct igc_adapter *adapter, struct igc_nfc_rule *rule); 730 731 void igc_ptp_init(struct igc_adapter *adapter); 732 void igc_ptp_reset(struct igc_adapter *adapter); 733 void igc_ptp_suspend(struct igc_adapter *adapter); 734 void igc_ptp_stop(struct igc_adapter *adapter); 735 ktime_t igc_ptp_rx_pktstamp(struct igc_adapter *adapter, __le32 *buf); 736 int igc_ptp_set_ts_config(struct net_device *netdev, struct ifreq *ifr); 737 int igc_ptp_get_ts_config(struct net_device *netdev, struct ifreq *ifr); 738 void igc_ptp_tx_hang(struct igc_adapter *adapter); 739 void igc_ptp_read(struct igc_adapter *adapter, struct timespec64 *ts); 740 void igc_ptp_tx_tstamp_event(struct igc_adapter *adapter); 741 742 int igc_led_setup(struct igc_adapter *adapter); 743 void igc_led_free(struct igc_adapter *adapter); 744 745 #define igc_rx_pg_size(_ring) (PAGE_SIZE << igc_rx_pg_order(_ring)) 746 747 #define IGC_TXD_DCMD (IGC_ADVTXD_DCMD_EOP | IGC_ADVTXD_DCMD_RS) 748 749 #define IGC_RX_DESC(R, i) \ 750 (&(((union igc_adv_rx_desc *)((R)->desc))[i])) 751 #define IGC_TX_DESC(R, i) \ 752 (&(((union igc_adv_tx_desc *)((R)->desc))[i])) 753 #define IGC_TX_CTXTDESC(R, i) \ 754 (&(((struct igc_adv_tx_context_desc *)((R)->desc))[i])) 755 756 #endif /* _IGC_H_ */ 757