1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* Copyright(c) 2007 - 2018 Intel Corporation. */ 3 4 /* Linux PRO/1000 Ethernet Driver main header file */ 5 6 #ifndef _IGB_H_ 7 #define _IGB_H_ 8 9 #include "e1000_mac.h" 10 #include "e1000_82575.h" 11 12 #include <linux/timecounter.h> 13 #include <linux/net_tstamp.h> 14 #include <linux/ptp_clock_kernel.h> 15 #include <linux/bitops.h> 16 #include <linux/if_vlan.h> 17 #include <linux/i2c.h> 18 #include <linux/i2c-algo-bit.h> 19 #include <linux/pci.h> 20 #include <linux/mdio.h> 21 #include <linux/lockdep.h> 22 23 #include <net/xdp.h> 24 #include <net/xdp_sock_drv.h> 25 26 struct igb_adapter; 27 28 #define E1000_PCS_CFG_IGN_SD 1 29 30 /* Interrupt defines */ 31 #define IGB_START_ITR 648 /* ~6000 ints/sec */ 32 #define IGB_4K_ITR 980 33 #define IGB_20K_ITR 196 34 #define IGB_70K_ITR 56 35 36 /* TX/RX descriptor defines */ 37 #define IGB_DEFAULT_TXD 256 38 #define IGB_DEFAULT_TX_WORK 128 39 #define IGB_MIN_TXD 64 40 #define IGB_MAX_TXD 4096 41 42 #define IGB_DEFAULT_RXD 256 43 #define IGB_MIN_RXD 64 44 #define IGB_MAX_RXD 4096 45 46 #define IGB_DEFAULT_ITR 3 /* dynamic */ 47 #define IGB_MAX_ITR_USECS 10000 48 #define IGB_MIN_ITR_USECS 10 49 #define NON_Q_VECTORS 1 50 #define MAX_Q_VECTORS 8 51 #define MAX_MSIX_ENTRIES 10 52 53 /* Transmit and receive queues */ 54 #define IGB_MAX_RX_QUEUES 8 55 #define IGB_MAX_RX_QUEUES_82575 4 56 #define IGB_MAX_RX_QUEUES_I211 2 57 #define IGB_MAX_TX_QUEUES 8 58 #define IGB_MAX_VF_MC_ENTRIES 30 59 #define IGB_MAX_VF_FUNCTIONS 8 60 #define IGB_MAX_VFTA_ENTRIES 128 61 #define IGB_82576_VF_DEV_ID 0x10CA 62 #define IGB_I350_VF_DEV_ID 0x1520 63 64 /* NVM version defines */ 65 #define IGB_MAJOR_MASK 0xF000 66 #define IGB_MINOR_MASK 0x0FF0 67 #define IGB_BUILD_MASK 0x000F 68 #define IGB_COMB_VER_MASK 0x00FF 69 #define IGB_MAJOR_SHIFT 12 70 #define IGB_MINOR_SHIFT 4 71 #define IGB_COMB_VER_SHFT 8 72 #define IGB_NVM_VER_INVALID 0xFFFF 73 #define IGB_ETRACK_SHIFT 16 74 #define NVM_ETRACK_WORD 0x0042 75 #define NVM_COMB_VER_OFF 0x0083 76 #define NVM_COMB_VER_PTR 0x003d 77 78 /* Transmit and receive latency (for PTP timestamps) */ 79 #define IGB_I210_TX_LATENCY_10 9542 80 #define IGB_I210_TX_LATENCY_100 1024 81 #define IGB_I210_TX_LATENCY_1000 178 82 #define IGB_I210_RX_LATENCY_10 20662 83 #define IGB_I210_RX_LATENCY_100 2213 84 #define IGB_I210_RX_LATENCY_1000 448 85 86 /* XDP */ 87 #define IGB_XDP_PASS 0 88 #define IGB_XDP_CONSUMED BIT(0) 89 #define IGB_XDP_TX BIT(1) 90 #define IGB_XDP_REDIR BIT(2) 91 #define IGB_XDP_EXIT BIT(3) 92 93 struct vf_data_storage { 94 unsigned char vf_mac_addresses[ETH_ALEN]; 95 u16 vf_mc_hashes[IGB_MAX_VF_MC_ENTRIES]; 96 u16 num_vf_mc_hashes; 97 u32 flags; 98 unsigned long last_nack; 99 u16 pf_vlan; /* When set, guest VLAN config not allowed. */ 100 u16 pf_qos; 101 u16 tx_rate; 102 bool spoofchk_enabled; 103 bool trusted; 104 }; 105 106 /* Number of unicast MAC filters reserved for the PF in the RAR registers */ 107 #define IGB_PF_MAC_FILTERS_RESERVED 3 108 109 struct vf_mac_filter { 110 struct list_head l; 111 int vf; 112 bool free; 113 u8 vf_mac[ETH_ALEN]; 114 }; 115 116 #define IGB_VF_FLAG_CTS 0x00000001 /* VF is clear to send data */ 117 #define IGB_VF_FLAG_UNI_PROMISC 0x00000002 /* VF has unicast promisc */ 118 #define IGB_VF_FLAG_MULTI_PROMISC 0x00000004 /* VF has multicast promisc */ 119 #define IGB_VF_FLAG_PF_SET_MAC 0x00000008 /* PF has set MAC address */ 120 121 /* RX descriptor control thresholds. 122 * PTHRESH - MAC will consider prefetch if it has fewer than this number of 123 * descriptors available in its onboard memory. 124 * Setting this to 0 disables RX descriptor prefetch. 125 * HTHRESH - MAC will only prefetch if there are at least this many descriptors 126 * available in host memory. 127 * If PTHRESH is 0, this should also be 0. 128 * WTHRESH - RX descriptor writeback threshold - MAC will delay writing back 129 * descriptors until either it has this many to write back, or the 130 * ITR timer expires. 131 */ 132 #define IGB_RX_PTHRESH ((hw->mac.type == e1000_i354) ? 12 : 8) 133 #define IGB_RX_HTHRESH 8 134 #define IGB_TX_PTHRESH ((hw->mac.type == e1000_i354) ? 20 : 8) 135 #define IGB_TX_HTHRESH 1 136 #define IGB_RX_WTHRESH ((hw->mac.type == e1000_82576 && \ 137 (adapter->flags & IGB_FLAG_HAS_MSIX)) ? 1 : 4) 138 #define IGB_TX_WTHRESH ((hw->mac.type == e1000_82576 && \ 139 (adapter->flags & IGB_FLAG_HAS_MSIX)) ? 1 : 16) 140 141 /* this is the size past which hardware will drop packets when setting LPE=0 */ 142 #define MAXIMUM_ETHERNET_VLAN_SIZE 1522 143 144 #define IGB_ETH_PKT_HDR_PAD (ETH_HLEN + ETH_FCS_LEN + (VLAN_HLEN * 2)) 145 146 /* Supported Rx Buffer Sizes */ 147 #define IGB_RXBUFFER_256 256 148 #define IGB_RXBUFFER_1536 1536 149 #define IGB_RXBUFFER_2048 2048 150 #define IGB_RXBUFFER_3072 3072 151 #define IGB_RX_HDR_LEN IGB_RXBUFFER_256 152 #define IGB_TS_HDR_LEN 16 153 154 /* Attempt to maximize the headroom available for incoming frames. We 155 * use a 2K buffer for receives and need 1536/1534 to store the data for 156 * the frame. This leaves us with 512 bytes of room. From that we need 157 * to deduct the space needed for the shared info and the padding needed 158 * to IP align the frame. 159 * 160 * Note: For cache line sizes 256 or larger this value is going to end 161 * up negative. In these cases we should fall back to the 3K 162 * buffers. 163 */ 164 #if (PAGE_SIZE < 8192) 165 #define IGB_MAX_FRAME_BUILD_SKB (IGB_RXBUFFER_1536 - NET_IP_ALIGN) 166 #define IGB_2K_TOO_SMALL_WITH_PADDING \ 167 ((NET_SKB_PAD + IGB_TS_HDR_LEN + IGB_RXBUFFER_1536) > SKB_WITH_OVERHEAD(IGB_RXBUFFER_2048)) 168 169 static inline int igb_compute_pad(int rx_buf_len) 170 { 171 int page_size, pad_size; 172 173 page_size = ALIGN(rx_buf_len, PAGE_SIZE / 2); 174 pad_size = SKB_WITH_OVERHEAD(page_size) - rx_buf_len; 175 176 return pad_size; 177 } 178 179 static inline int igb_skb_pad(void) 180 { 181 int rx_buf_len; 182 183 /* If a 2K buffer cannot handle a standard Ethernet frame then 184 * optimize padding for a 3K buffer instead of a 1.5K buffer. 185 * 186 * For a 3K buffer we need to add enough padding to allow for 187 * tailroom due to NET_IP_ALIGN possibly shifting us out of 188 * cache-line alignment. 189 */ 190 if (IGB_2K_TOO_SMALL_WITH_PADDING) 191 rx_buf_len = IGB_RXBUFFER_3072 + SKB_DATA_ALIGN(NET_IP_ALIGN); 192 else 193 rx_buf_len = IGB_RXBUFFER_1536; 194 195 /* if needed make room for NET_IP_ALIGN */ 196 rx_buf_len -= NET_IP_ALIGN; 197 198 return igb_compute_pad(rx_buf_len); 199 } 200 201 #define IGB_SKB_PAD igb_skb_pad() 202 #else 203 #define IGB_SKB_PAD (NET_SKB_PAD + NET_IP_ALIGN) 204 #endif 205 206 /* How many Rx Buffers do we bundle into one write to the hardware ? */ 207 #define IGB_RX_BUFFER_WRITE 16 /* Must be power of 2 */ 208 209 #define IGB_RX_DMA_ATTR \ 210 (DMA_ATTR_SKIP_CPU_SYNC | DMA_ATTR_WEAK_ORDERING) 211 212 #define AUTO_ALL_MODES 0 213 #define IGB_EEPROM_APME 0x0400 214 215 #ifndef IGB_MASTER_SLAVE 216 /* Switch to override PHY master/slave setting */ 217 #define IGB_MASTER_SLAVE e1000_ms_hw_default 218 #endif 219 220 #define IGB_MNG_VLAN_NONE -1 221 222 enum igb_tx_flags { 223 /* cmd_type flags */ 224 IGB_TX_FLAGS_VLAN = 0x01, 225 IGB_TX_FLAGS_TSO = 0x02, 226 IGB_TX_FLAGS_TSTAMP = 0x04, 227 228 /* olinfo flags */ 229 IGB_TX_FLAGS_IPV4 = 0x10, 230 IGB_TX_FLAGS_CSUM = 0x20, 231 }; 232 233 /* VLAN info */ 234 #define IGB_TX_FLAGS_VLAN_MASK 0xffff0000 235 #define IGB_TX_FLAGS_VLAN_SHIFT 16 236 237 /* The largest size we can write to the descriptor is 65535. In order to 238 * maintain a power of two alignment we have to limit ourselves to 32K. 239 */ 240 #define IGB_MAX_TXD_PWR 15 241 #define IGB_MAX_DATA_PER_TXD (1u << IGB_MAX_TXD_PWR) 242 243 /* Tx Descriptors needed, worst case */ 244 #define TXD_USE_COUNT(S) DIV_ROUND_UP((S), IGB_MAX_DATA_PER_TXD) 245 #define DESC_NEEDED (MAX_SKB_FRAGS + 4) 246 247 /* EEPROM byte offsets */ 248 #define IGB_SFF_8472_SWAP 0x5C 249 #define IGB_SFF_8472_COMP 0x5E 250 251 /* Bitmasks */ 252 #define IGB_SFF_ADDRESSING_MODE 0x4 253 #define IGB_SFF_8472_UNSUP 0x00 254 255 /* TX resources are shared between XDP and netstack 256 * and we need to tag the buffer type to distinguish them 257 */ 258 enum igb_tx_buf_type { 259 IGB_TYPE_SKB = 0, 260 IGB_TYPE_XDP, 261 IGB_TYPE_XSK 262 }; 263 264 /* wrapper around a pointer to a socket buffer, 265 * so a DMA handle can be stored along with the buffer 266 */ 267 struct igb_tx_buffer { 268 union e1000_adv_tx_desc *next_to_watch; 269 unsigned long time_stamp; 270 enum igb_tx_buf_type type; 271 union { 272 struct sk_buff *skb; 273 struct xdp_frame *xdpf; 274 }; 275 unsigned int bytecount; 276 u16 gso_segs; 277 __be16 protocol; 278 279 DEFINE_DMA_UNMAP_ADDR(dma); 280 DEFINE_DMA_UNMAP_LEN(len); 281 u32 tx_flags; 282 }; 283 284 struct igb_rx_buffer { 285 dma_addr_t dma; 286 struct page *page; 287 #if (BITS_PER_LONG > 32) || (PAGE_SIZE >= 65536) 288 __u32 page_offset; 289 #else 290 __u16 page_offset; 291 #endif 292 __u16 pagecnt_bias; 293 }; 294 295 struct igb_tx_queue_stats { 296 u64 packets; 297 u64 bytes; 298 u64 restart_queue; 299 u64 restart_queue2; 300 }; 301 302 struct igb_rx_queue_stats { 303 u64 packets; 304 u64 bytes; 305 u64 drops; 306 u64 csum_err; 307 u64 alloc_failed; 308 }; 309 310 struct igb_ring_container { 311 struct igb_ring *ring; /* pointer to linked list of rings */ 312 unsigned int total_bytes; /* total bytes processed this int */ 313 unsigned int total_packets; /* total packets processed this int */ 314 u16 work_limit; /* total work allowed per interrupt */ 315 u8 count; /* total number of rings in vector */ 316 u8 itr; /* current ITR setting for ring */ 317 }; 318 319 struct igb_ring { 320 struct igb_q_vector *q_vector; /* backlink to q_vector */ 321 struct net_device *netdev; /* back pointer to net_device */ 322 struct bpf_prog *xdp_prog; 323 struct device *dev; /* device pointer for dma mapping */ 324 union { /* array of buffer info structs */ 325 struct igb_tx_buffer *tx_buffer_info; 326 struct igb_rx_buffer *rx_buffer_info; 327 struct xdp_buff **rx_buffer_info_zc; 328 }; 329 void *desc; /* descriptor ring memory */ 330 unsigned long flags; /* ring specific flags */ 331 void __iomem *tail; /* pointer to ring tail register */ 332 dma_addr_t dma; /* phys address of the ring */ 333 unsigned int size; /* length of desc. ring in bytes */ 334 335 u16 count; /* number of desc. in the ring */ 336 u8 queue_index; /* logical index of the ring*/ 337 u8 reg_idx; /* physical index of the ring */ 338 bool launchtime_enable; /* true if LaunchTime is enabled */ 339 bool cbs_enable; /* indicates if CBS is enabled */ 340 s32 idleslope; /* idleSlope in kbps */ 341 s32 sendslope; /* sendSlope in kbps */ 342 s32 hicredit; /* hiCredit in bytes */ 343 s32 locredit; /* loCredit in bytes */ 344 345 /* everything past this point are written often */ 346 u16 next_to_clean; 347 u16 next_to_use; 348 u16 next_to_alloc; 349 350 union { 351 /* TX */ 352 struct { 353 struct igb_tx_queue_stats tx_stats; 354 struct u64_stats_sync tx_syncp; 355 struct u64_stats_sync tx_syncp2; 356 }; 357 /* RX */ 358 struct { 359 struct sk_buff *skb; 360 struct igb_rx_queue_stats rx_stats; 361 struct u64_stats_sync rx_syncp; 362 }; 363 }; 364 struct xdp_rxq_info xdp_rxq; 365 struct xsk_buff_pool *xsk_pool; 366 } ____cacheline_internodealigned_in_smp; 367 368 struct igb_q_vector { 369 struct igb_adapter *adapter; /* backlink */ 370 int cpu; /* CPU for DCA */ 371 u32 eims_value; /* EIMS mask value */ 372 373 u16 itr_val; 374 u8 set_itr; 375 void __iomem *itr_register; 376 377 struct igb_ring_container rx, tx; 378 379 struct napi_struct napi; 380 struct rcu_head rcu; /* to avoid race with update stats on free */ 381 char name[IFNAMSIZ + 9]; 382 383 /* for dynamic allocation of rings associated with this q_vector */ 384 struct igb_ring ring[] ____cacheline_internodealigned_in_smp; 385 }; 386 387 enum e1000_ring_flags_t { 388 IGB_RING_FLAG_RX_3K_BUFFER, 389 IGB_RING_FLAG_RX_BUILD_SKB_ENABLED, 390 IGB_RING_FLAG_RX_SCTP_CSUM, 391 IGB_RING_FLAG_RX_LB_VLAN_BSWAP, 392 IGB_RING_FLAG_TX_CTX_IDX, 393 IGB_RING_FLAG_TX_DETECT_HANG, 394 IGB_RING_FLAG_TX_DISABLED 395 }; 396 397 #define ring_uses_large_buffer(ring) \ 398 test_bit(IGB_RING_FLAG_RX_3K_BUFFER, &(ring)->flags) 399 #define set_ring_uses_large_buffer(ring) \ 400 set_bit(IGB_RING_FLAG_RX_3K_BUFFER, &(ring)->flags) 401 #define clear_ring_uses_large_buffer(ring) \ 402 clear_bit(IGB_RING_FLAG_RX_3K_BUFFER, &(ring)->flags) 403 404 #define ring_uses_build_skb(ring) \ 405 test_bit(IGB_RING_FLAG_RX_BUILD_SKB_ENABLED, &(ring)->flags) 406 #define set_ring_build_skb_enabled(ring) \ 407 set_bit(IGB_RING_FLAG_RX_BUILD_SKB_ENABLED, &(ring)->flags) 408 #define clear_ring_build_skb_enabled(ring) \ 409 clear_bit(IGB_RING_FLAG_RX_BUILD_SKB_ENABLED, &(ring)->flags) 410 411 static inline unsigned int igb_rx_bufsz(struct igb_ring *ring) 412 { 413 #if (PAGE_SIZE < 8192) 414 if (ring_uses_large_buffer(ring)) 415 return IGB_RXBUFFER_3072; 416 417 if (ring_uses_build_skb(ring)) 418 return IGB_MAX_FRAME_BUILD_SKB; 419 #endif 420 return IGB_RXBUFFER_2048; 421 } 422 423 static inline unsigned int igb_rx_pg_order(struct igb_ring *ring) 424 { 425 #if (PAGE_SIZE < 8192) 426 if (ring_uses_large_buffer(ring)) 427 return 1; 428 #endif 429 return 0; 430 } 431 432 #define igb_rx_pg_size(_ring) (PAGE_SIZE << igb_rx_pg_order(_ring)) 433 434 #define IGB_TXD_DCMD (E1000_ADVTXD_DCMD_EOP | E1000_ADVTXD_DCMD_RS) 435 436 #define IGB_RX_DESC(R, i) \ 437 (&(((union e1000_adv_rx_desc *)((R)->desc))[i])) 438 #define IGB_TX_DESC(R, i) \ 439 (&(((union e1000_adv_tx_desc *)((R)->desc))[i])) 440 #define IGB_TX_CTXTDESC(R, i) \ 441 (&(((struct e1000_adv_tx_context_desc *)((R)->desc))[i])) 442 443 /* igb_test_staterr - tests bits within Rx descriptor status and error fields */ 444 static inline __le32 igb_test_staterr(union e1000_adv_rx_desc *rx_desc, 445 const u32 stat_err_bits) 446 { 447 return rx_desc->wb.upper.status_error & cpu_to_le32(stat_err_bits); 448 } 449 450 /* igb_desc_unused - calculate if we have unused descriptors */ 451 static inline int igb_desc_unused(struct igb_ring *ring) 452 { 453 if (ring->next_to_clean > ring->next_to_use) 454 return ring->next_to_clean - ring->next_to_use - 1; 455 456 return ring->count + ring->next_to_clean - ring->next_to_use - 1; 457 } 458 459 #ifdef CONFIG_IGB_HWMON 460 461 #define IGB_HWMON_TYPE_LOC 0 462 #define IGB_HWMON_TYPE_TEMP 1 463 #define IGB_HWMON_TYPE_CAUTION 2 464 #define IGB_HWMON_TYPE_MAX 3 465 466 struct hwmon_attr { 467 struct device_attribute dev_attr; 468 struct e1000_hw *hw; 469 struct e1000_thermal_diode_data *sensor; 470 char name[12]; 471 }; 472 473 struct hwmon_buff { 474 struct attribute_group group; 475 const struct attribute_group *groups[2]; 476 struct attribute *attrs[E1000_MAX_SENSORS * 4 + 1]; 477 struct hwmon_attr hwmon_list[E1000_MAX_SENSORS * 4]; 478 unsigned int n_hwmon; 479 }; 480 #endif 481 482 /* The number of L2 ether-type filter registers, Index 3 is reserved 483 * for PTP 1588 timestamp 484 */ 485 #define MAX_ETYPE_FILTER (4 - 1) 486 /* ETQF filter list: one static filter per filter consumer. This is 487 * to avoid filter collisions later. Add new filters here!! 488 * 489 * Current filters: Filter 3 490 */ 491 #define IGB_ETQF_FILTER_1588 3 492 493 #define IGB_N_EXTTS 2 494 #define IGB_N_PEROUT 2 495 #define IGB_N_SDP 4 496 #define IGB_RETA_SIZE 128 497 498 enum igb_filter_match_flags { 499 IGB_FILTER_FLAG_ETHER_TYPE = 0x1, 500 IGB_FILTER_FLAG_VLAN_TCI = 0x2, 501 IGB_FILTER_FLAG_SRC_MAC_ADDR = 0x4, 502 IGB_FILTER_FLAG_DST_MAC_ADDR = 0x8, 503 }; 504 505 #define IGB_MAX_RXNFC_FILTERS 16 506 507 /* RX network flow classification data structure */ 508 struct igb_nfc_input { 509 /* Byte layout in order, all values with MSB first: 510 * match_flags - 1 byte 511 * etype - 2 bytes 512 * vlan_tci - 2 bytes 513 */ 514 u8 match_flags; 515 __be16 etype; 516 __be16 vlan_tci; 517 u8 src_addr[ETH_ALEN]; 518 u8 dst_addr[ETH_ALEN]; 519 }; 520 521 struct igb_nfc_filter { 522 struct hlist_node nfc_node; 523 struct igb_nfc_input filter; 524 unsigned long cookie; 525 u16 etype_reg_index; 526 u16 sw_idx; 527 u16 action; 528 }; 529 530 struct igb_mac_addr { 531 u8 addr[ETH_ALEN]; 532 u8 queue; 533 u8 state; /* bitmask */ 534 }; 535 536 #define IGB_MAC_STATE_DEFAULT 0x1 537 #define IGB_MAC_STATE_IN_USE 0x2 538 #define IGB_MAC_STATE_SRC_ADDR 0x4 539 #define IGB_MAC_STATE_QUEUE_STEERING 0x8 540 541 /* board specific private data structure */ 542 struct igb_adapter { 543 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 544 545 struct net_device *netdev; 546 struct bpf_prog *xdp_prog; 547 548 unsigned long state; 549 unsigned int flags; 550 551 unsigned int num_q_vectors; 552 struct msix_entry msix_entries[MAX_MSIX_ENTRIES]; 553 554 /* Interrupt Throttle Rate */ 555 u32 rx_itr_setting; 556 u32 tx_itr_setting; 557 u16 tx_itr; 558 u16 rx_itr; 559 560 /* TX */ 561 u16 tx_work_limit; 562 u32 tx_timeout_count; 563 int num_tx_queues; 564 struct igb_ring *tx_ring[16]; 565 566 /* RX */ 567 int num_rx_queues; 568 struct igb_ring *rx_ring[16]; 569 570 u32 max_frame_size; 571 u32 min_frame_size; 572 573 struct timer_list watchdog_timer; 574 struct timer_list phy_info_timer; 575 576 u16 mng_vlan_id; 577 u32 bd_number; 578 u32 wol; 579 u32 en_mng_pt; 580 u16 link_speed; 581 u16 link_duplex; 582 583 u8 __iomem *io_addr; /* Mainly for iounmap use */ 584 585 struct work_struct reset_task; 586 struct work_struct watchdog_task; 587 bool fc_autoneg; 588 u8 tx_timeout_factor; 589 struct timer_list blink_timer; 590 unsigned long led_status; 591 592 /* OS defined structs */ 593 struct pci_dev *pdev; 594 595 spinlock_t stats64_lock; 596 struct rtnl_link_stats64 stats64; 597 598 /* structs defined in e1000_hw.h */ 599 struct e1000_hw hw; 600 struct e1000_hw_stats stats; 601 struct e1000_phy_info phy_info; 602 603 u32 test_icr; 604 struct igb_ring test_tx_ring; 605 struct igb_ring test_rx_ring; 606 607 int msg_enable; 608 609 struct igb_q_vector *q_vector[MAX_Q_VECTORS]; 610 u32 eims_enable_mask; 611 u32 eims_other; 612 613 /* to not mess up cache alignment, always add to the bottom */ 614 u16 tx_ring_count; 615 u16 rx_ring_count; 616 unsigned int vfs_allocated_count; 617 struct vf_data_storage *vf_data; 618 int vf_rate_link_speed; 619 u32 rss_queues; 620 u32 wvbr; 621 u32 *shadow_vfta; 622 623 struct ptp_clock *ptp_clock; 624 struct ptp_clock_info ptp_caps; 625 struct delayed_work ptp_overflow_work; 626 struct work_struct ptp_tx_work; 627 struct sk_buff *ptp_tx_skb; 628 struct hwtstamp_config tstamp_config; 629 unsigned long ptp_tx_start; 630 unsigned long last_rx_ptp_check; 631 unsigned long last_rx_timestamp; 632 unsigned int ptp_flags; 633 spinlock_t tmreg_lock; 634 struct cyclecounter cc; 635 struct timecounter tc; 636 u32 tx_hwtstamp_timeouts; 637 u32 tx_hwtstamp_skipped; 638 u32 rx_hwtstamp_cleared; 639 bool pps_sys_wrap_on; 640 641 struct ptp_pin_desc sdp_config[IGB_N_SDP]; 642 struct { 643 struct timespec64 start; 644 struct timespec64 period; 645 } perout[IGB_N_PEROUT]; 646 647 char fw_version[48]; 648 #ifdef CONFIG_IGB_HWMON 649 struct hwmon_buff *igb_hwmon_buff; 650 bool ets; 651 #endif 652 struct i2c_algo_bit_data i2c_algo; 653 struct i2c_adapter i2c_adap; 654 struct i2c_client *i2c_client; 655 u32 rss_indir_tbl_init; 656 u8 rss_indir_tbl[IGB_RETA_SIZE]; 657 658 unsigned long link_check_timeout; 659 int copper_tries; 660 struct e1000_info ei; 661 u16 eee_advert; 662 663 /* RX network flow classification support */ 664 struct hlist_head nfc_filter_list; 665 struct hlist_head cls_flower_list; 666 unsigned int nfc_filter_count; 667 /* lock for RX network flow classification filter */ 668 spinlock_t nfc_lock; 669 bool etype_bitmap[MAX_ETYPE_FILTER]; 670 671 struct igb_mac_addr *mac_table; 672 struct vf_mac_filter vf_macs; 673 struct vf_mac_filter *vf_mac_list; 674 /* lock for VF resources */ 675 spinlock_t vfs_lock; 676 }; 677 678 /* flags controlling PTP/1588 function */ 679 #define IGB_PTP_ENABLED BIT(0) 680 #define IGB_PTP_OVERFLOW_CHECK BIT(1) 681 682 #define IGB_FLAG_HAS_MSI BIT(0) 683 #define IGB_FLAG_DCA_ENABLED BIT(1) 684 #define IGB_FLAG_QUAD_PORT_A BIT(2) 685 #define IGB_FLAG_QUEUE_PAIRS BIT(3) 686 #define IGB_FLAG_DMAC BIT(4) 687 #define IGB_FLAG_RSS_FIELD_IPV4_UDP BIT(6) 688 #define IGB_FLAG_RSS_FIELD_IPV6_UDP BIT(7) 689 #define IGB_FLAG_WOL_SUPPORTED BIT(8) 690 #define IGB_FLAG_NEED_LINK_UPDATE BIT(9) 691 #define IGB_FLAG_MEDIA_RESET BIT(10) 692 #define IGB_FLAG_MAS_CAPABLE BIT(11) 693 #define IGB_FLAG_MAS_ENABLE BIT(12) 694 #define IGB_FLAG_HAS_MSIX BIT(13) 695 #define IGB_FLAG_EEE BIT(14) 696 #define IGB_FLAG_VLAN_PROMISC BIT(15) 697 #define IGB_FLAG_RX_LEGACY BIT(16) 698 #define IGB_FLAG_FQTSS BIT(17) 699 700 /* Media Auto Sense */ 701 #define IGB_MAS_ENABLE_0 0X0001 702 #define IGB_MAS_ENABLE_1 0X0002 703 #define IGB_MAS_ENABLE_2 0X0004 704 #define IGB_MAS_ENABLE_3 0X0008 705 706 /* DMA Coalescing defines */ 707 #define IGB_MIN_TXPBSIZE 20408 708 #define IGB_TX_BUF_4096 4096 709 #define IGB_DMCTLX_DCFLUSH_DIS 0x80000000 /* Disable DMA Coal Flush */ 710 711 #define IGB_82576_TSYNC_SHIFT 19 712 enum e1000_state_t { 713 __IGB_TESTING, 714 __IGB_RESETTING, 715 __IGB_DOWN, 716 __IGB_PTP_TX_IN_PROGRESS, 717 }; 718 719 enum igb_boards { 720 board_82575, 721 }; 722 723 extern char igb_driver_name[]; 724 725 int igb_xmit_xdp_ring(struct igb_adapter *adapter, 726 struct igb_ring *ring, 727 struct xdp_frame *xdpf); 728 int igb_open(struct net_device *netdev); 729 int igb_close(struct net_device *netdev); 730 int igb_up(struct igb_adapter *); 731 void igb_down(struct igb_adapter *); 732 void igb_reinit_locked(struct igb_adapter *); 733 void igb_reset(struct igb_adapter *); 734 int igb_reinit_queues(struct igb_adapter *); 735 void igb_write_rss_indir_tbl(struct igb_adapter *); 736 int igb_set_spd_dplx(struct igb_adapter *, u32, u8); 737 int igb_setup_tx_resources(struct igb_ring *); 738 int igb_setup_rx_resources(struct igb_ring *); 739 void igb_free_tx_resources(struct igb_ring *); 740 void igb_free_rx_resources(struct igb_ring *); 741 void igb_clean_tx_ring(struct igb_ring *tx_ring); 742 void igb_clean_rx_ring(struct igb_ring *rx_ring); 743 void igb_configure_tx_ring(struct igb_adapter *, struct igb_ring *); 744 void igb_configure_rx_ring(struct igb_adapter *, struct igb_ring *); 745 void igb_finalize_xdp(struct igb_adapter *adapter, unsigned int status); 746 void igb_update_rx_stats(struct igb_q_vector *q_vector, unsigned int packets, 747 unsigned int bytes); 748 void igb_setup_tctl(struct igb_adapter *); 749 void igb_setup_rctl(struct igb_adapter *); 750 void igb_setup_srrctl(struct igb_adapter *, struct igb_ring *); 751 netdev_tx_t igb_xmit_frame_ring(struct sk_buff *, struct igb_ring *); 752 int igb_xdp_xmit_back(struct igb_adapter *adapter, struct xdp_buff *xdp); 753 void igb_process_skb_fields(struct igb_ring *rx_ring, 754 union e1000_adv_rx_desc *rx_desc, 755 struct sk_buff *skb); 756 void igb_alloc_rx_buffers(struct igb_ring *, u16); 757 void igb_update_stats(struct igb_adapter *); 758 bool igb_has_link(struct igb_adapter *adapter); 759 void igb_set_ethtool_ops(struct net_device *); 760 void igb_power_up_link(struct igb_adapter *); 761 void igb_set_fw_version(struct igb_adapter *); 762 void igb_ptp_init(struct igb_adapter *adapter); 763 void igb_ptp_stop(struct igb_adapter *adapter); 764 void igb_ptp_reset(struct igb_adapter *adapter); 765 void igb_ptp_suspend(struct igb_adapter *adapter); 766 void igb_ptp_rx_hang(struct igb_adapter *adapter); 767 void igb_ptp_tx_hang(struct igb_adapter *adapter); 768 void igb_ptp_rx_rgtstamp(struct igb_q_vector *q_vector, struct sk_buff *skb); 769 int igb_ptp_rx_pktstamp(struct igb_q_vector *q_vector, void *va, 770 ktime_t *timestamp); 771 int igb_ptp_set_ts_config(struct net_device *netdev, struct ifreq *ifr); 772 int igb_ptp_get_ts_config(struct net_device *netdev, struct ifreq *ifr); 773 void igb_set_flag_queue_pairs(struct igb_adapter *, const u32); 774 unsigned int igb_get_max_rss_queues(struct igb_adapter *); 775 #ifdef CONFIG_IGB_HWMON 776 void igb_sysfs_exit(struct igb_adapter *adapter); 777 int igb_sysfs_init(struct igb_adapter *adapter); 778 #endif 779 static inline s32 igb_reset_phy(struct e1000_hw *hw) 780 { 781 if (hw->phy.ops.reset) 782 return hw->phy.ops.reset(hw); 783 784 return 0; 785 } 786 787 static inline s32 igb_read_phy_reg(struct e1000_hw *hw, u32 offset, u16 *data) 788 { 789 if (hw->phy.ops.read_reg) 790 return hw->phy.ops.read_reg(hw, offset, data); 791 792 return 0; 793 } 794 795 static inline s32 igb_write_phy_reg(struct e1000_hw *hw, u32 offset, u16 data) 796 { 797 if (hw->phy.ops.write_reg) 798 return hw->phy.ops.write_reg(hw, offset, data); 799 800 return 0; 801 } 802 803 static inline s32 igb_get_phy_info(struct e1000_hw *hw) 804 { 805 if (hw->phy.ops.get_phy_info) 806 return hw->phy.ops.get_phy_info(hw); 807 808 return 0; 809 } 810 811 static inline struct netdev_queue *txring_txq(const struct igb_ring *tx_ring) 812 { 813 return netdev_get_tx_queue(tx_ring->netdev, tx_ring->queue_index); 814 } 815 816 /* This function assumes __netif_tx_lock is held by the caller. */ 817 static inline void igb_xdp_ring_update_tail(struct igb_ring *ring) 818 { 819 lockdep_assert_held(&txring_txq(ring)->_xmit_lock); 820 821 /* Force memory writes to complete before letting h/w know there 822 * are new descriptors to fetch. 823 */ 824 wmb(); 825 writel(ring->next_to_use, ring->tail); 826 } 827 828 static inline struct igb_ring *igb_xdp_tx_queue_mapping(struct igb_adapter *adapter) 829 { 830 unsigned int r_idx = smp_processor_id(); 831 832 if (r_idx >= adapter->num_tx_queues) 833 r_idx = r_idx % adapter->num_tx_queues; 834 835 return adapter->tx_ring[r_idx]; 836 } 837 838 static inline bool igb_xdp_is_enabled(struct igb_adapter *adapter) 839 { 840 return !!READ_ONCE(adapter->xdp_prog); 841 } 842 843 int igb_add_filter(struct igb_adapter *adapter, 844 struct igb_nfc_filter *input); 845 int igb_erase_filter(struct igb_adapter *adapter, 846 struct igb_nfc_filter *input); 847 848 int igb_add_mac_steering_filter(struct igb_adapter *adapter, 849 const u8 *addr, u8 queue, u8 flags); 850 int igb_del_mac_steering_filter(struct igb_adapter *adapter, 851 const u8 *addr, u8 queue, u8 flags); 852 853 struct xsk_buff_pool *igb_xsk_pool(struct igb_adapter *adapter, 854 struct igb_ring *ring); 855 int igb_xsk_pool_setup(struct igb_adapter *adapter, 856 struct xsk_buff_pool *pool, 857 u16 qid); 858 bool igb_alloc_rx_buffers_zc(struct igb_ring *rx_ring, 859 struct xsk_buff_pool *xsk_pool, u16 count); 860 void igb_clean_rx_ring_zc(struct igb_ring *rx_ring); 861 int igb_clean_rx_irq_zc(struct igb_q_vector *q_vector, 862 struct xsk_buff_pool *xsk_pool, const int budget); 863 bool igb_xmit_zc(struct igb_ring *tx_ring, struct xsk_buff_pool *xsk_pool); 864 int igb_xsk_wakeup(struct net_device *dev, u32 qid, u32 flags); 865 866 #endif /* _IGB_H_ */ 867