drivers/net/ethernet/intel/e1000e/e1000.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /* Copyright(c) 1999 - 2018 Intel Corporation. */
   3
   4 /* Linux PRO/1000 Ethernet Driver main header file */
   5
   6 #ifndef _E1000_H_
   7 #define _E1000_H_
   8
   9 #include <linux/bitops.h>
  10 #include <linux/types.h>
  11 #include <linux/timer.h>
  12 #include <linux/workqueue.h>
  13 #include <linux/io.h>
  14 #include <linux/netdevice.h>
  15 #include <linux/pci.h>
  16 #include <linux/pci-aspm.h>
  17 #include <linux/crc32.h>
  18 #include <linux/if_vlan.h>
  19 #include <linux/timecounter.h>
  20 #include <linux/net_tstamp.h>
  21 #include <linux/ptp_clock_kernel.h>
  22 #include <linux/ptp_classify.h>
  23 #include <linux/mii.h>
  24 #include <linux/mdio.h>
  25 #include <linux/pm_qos.h>
  26 #include "hw.h"
  27
  28 struct e1000_info;
  29
  30 #define e_dbg(format, arg...) \
  31         netdev_dbg(hw->adapter->netdev, format, ## arg)
  32 #define e_err(format, arg...) \
  33         netdev_err(adapter->netdev, format, ## arg)
  34 #define e_info(format, arg...) \
  35         netdev_info(adapter->netdev, format, ## arg)
  36 #define e_warn(format, arg...) \
  37         netdev_warn(adapter->netdev, format, ## arg)
  38 #define e_notice(format, arg...) \
  39         netdev_notice(adapter->netdev, format, ## arg)
  40
  41 /* Interrupt modes, as used by the IntMode parameter */
  42 #define E1000E_INT_MODE_LEGACY          0
  43 #define E1000E_INT_MODE_MSI             1
  44 #define E1000E_INT_MODE_MSIX            2
  45
  46 /* Tx/Rx descriptor defines */
  47 #define E1000_DEFAULT_TXD               256
  48 #define E1000_MAX_TXD                   4096
  49 #define E1000_MIN_TXD                   64
  50
  51 #define E1000_DEFAULT_RXD               256
  52 #define E1000_MAX_RXD                   4096
  53 #define E1000_MIN_RXD                   64
  54
  55 #define E1000_MIN_ITR_USECS             10 /* 100000 irq/sec */
  56 #define E1000_MAX_ITR_USECS             10000 /* 100    irq/sec */
  57
  58 #define E1000_FC_PAUSE_TIME             0x0680 /* 858 usec */
  59
  60 /* How many Tx Descriptors do we need to call netif_wake_queue ? */
  61 /* How many Rx Buffers do we bundle into one write to the hardware ? */
  62 #define E1000_RX_BUFFER_WRITE           16 /* Must be power of 2 */
  63
  64 #define AUTO_ALL_MODES                  0
  65 #define E1000_EEPROM_APME               0x0400
  66
  67 #define E1000_MNG_VLAN_NONE             (-1)
  68
  69 #define DEFAULT_JUMBO                   9234
  70
  71 /* Time to wait before putting the device into D3 if there's no link (in ms). */
  72 #define LINK_TIMEOUT            100
  73
  74 /* Count for polling __E1000_RESET condition every 10-20msec.
  75  * Experimentation has shown the reset can take approximately 210msec.
  76  */
  77 #define E1000_CHECK_RESET_COUNT         25
  78
  79 #define PCICFG_DESC_RING_STATUS         0xe4
  80 #define FLUSH_DESC_REQUIRED             0x100
  81
  82 /* in the case of WTHRESH, it appears at least the 82571/2 hardware
  83  * writes back 4 descriptors when WTHRESH=5, and 3 descriptors when
  84  * WTHRESH=4, so a setting of 5 gives the most efficient bus
  85  * utilization but to avoid possible Tx stalls, set it to 1
  86  */
  87 #define E1000_TXDCTL_DMA_BURST_ENABLE                          \
  88         (E1000_TXDCTL_GRAN | /* set descriptor granularity */  \
  89          E1000_TXDCTL_COUNT_DESC |                             \
  90          (1u << 16) | /* wthresh must be +1 more than desired */\
  91          (1u << 8)  | /* hthresh */                             \
  92          0x1f)        /* pthresh */
  93
  94 #define E1000_RXDCTL_DMA_BURST_ENABLE                          \
  95         (0x01000000 | /* set descriptor granularity */         \
  96          (4u << 16) | /* set writeback threshold    */         \
  97          (4u << 8)  | /* set prefetch threshold     */         \
  98          0x20)        /* set hthresh                */
  99
 100 #define E1000_TIDV_FPD BIT(31)
 101 #define E1000_RDTR_FPD BIT(31)
 102
 103 enum e1000_boards {
 104         board_82571,
 105         board_82572,
 106         board_82573,
 107         board_82574,
 108         board_82583,
 109         board_80003es2lan,
 110         board_ich8lan,
 111         board_ich9lan,
 112         board_ich10lan,
 113         board_pchlan,
 114         board_pch2lan,
 115         board_pch_lpt,
 116         board_pch_spt,
 117         board_pch_cnp
 118 };
 119
 120 struct e1000_ps_page {
 121         struct page *page;
 122         u64 dma; /* must be u64 - written to hw */
 123 };
 124
 125 /* wrappers around a pointer to a socket buffer,
 126  * so a DMA handle can be stored along with the buffer
 127  */
 128 struct e1000_buffer {
 129         dma_addr_t dma;
 130         struct sk_buff *skb;
 131         union {
 132                 /* Tx */
 133                 struct {
 134                         unsigned long time_stamp;
 135                         u16 length;
 136                         u16 next_to_watch;
 137                         unsigned int segs;
 138                         unsigned int bytecount;
 139                         u16 mapped_as_page;
 140                 };
 141                 /* Rx */
 142                 struct {
 143                         /* arrays of page information for packet split */
 144                         struct e1000_ps_page *ps_pages;
 145                         struct page *page;
 146                 };
 147         };
 148 };
 149
 150 struct e1000_ring {
 151         struct e1000_adapter *adapter;  /* back pointer to adapter */
 152         void *desc;                     /* pointer to ring memory  */
 153         dma_addr_t dma;                 /* phys address of ring    */
 154         unsigned int size;              /* length of ring in bytes */
 155         unsigned int count;             /* number of desc. in ring */
 156
 157         u16 next_to_use;
 158         u16 next_to_clean;
 159
 160         void __iomem *head;
 161         void __iomem *tail;
 162
 163         /* array of buffer information structs */
 164         struct e1000_buffer *buffer_info;
 165
 166         char name[IFNAMSIZ + 5];
 167         u32 ims_val;
 168         u32 itr_val;
 169         void __iomem *itr_register;
 170         int set_itr;
 171
 172         struct sk_buff *rx_skb_top;
 173 };
 174
 175 /* PHY register snapshot values */
 176 struct e1000_phy_regs {
 177         u16 bmcr;               /* basic mode control register    */
 178         u16 bmsr;               /* basic mode status register     */
 179         u16 advertise;          /* auto-negotiation advertisement */
 180         u16 lpa;                /* link partner ability register  */
 181         u16 expansion;          /* auto-negotiation expansion reg */
 182         u16 ctrl1000;           /* 1000BASE-T control register    */
 183         u16 stat1000;           /* 1000BASE-T status register     */
 184         u16 estatus;            /* extended status register       */
 185 };
 186
 187 /* board specific private data structure */
 188 struct e1000_adapter {
 189         struct timer_list watchdog_timer;
 190         struct timer_list phy_info_timer;
 191         struct timer_list blink_timer;
 192
 193         struct work_struct reset_task;
 194         struct work_struct watchdog_task;
 195
 196         const struct e1000_info *ei;
 197
 198         unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
 199         u32 bd_number;
 200         u32 rx_buffer_len;
 201         u16 mng_vlan_id;
 202         u16 link_speed;
 203         u16 link_duplex;
 204         u16 eeprom_vers;
 205
 206         /* track device up/down/testing state */
 207         unsigned long state;
 208
 209         /* Interrupt Throttle Rate */
 210         u32 itr;
 211         u32 itr_setting;
 212         u16 tx_itr;
 213         u16 rx_itr;
 214
 215         /* Tx - one ring per active queue */
 216         struct e1000_ring *tx_ring ____cacheline_aligned_in_smp;
 217         u32 tx_fifo_limit;
 218
 219         struct napi_struct napi;
 220
 221         unsigned int uncorr_errors;     /* uncorrectable ECC errors */
 222         unsigned int corr_errors;       /* correctable ECC errors */
 223         unsigned int restart_queue;
 224         u32 txd_cmd;
 225
 226         bool detect_tx_hung;
 227         bool tx_hang_recheck;
 228         u8 tx_timeout_factor;
 229
 230         u32 tx_int_delay;
 231         u32 tx_abs_int_delay;
 232
 233         unsigned int total_tx_bytes;
 234         unsigned int total_tx_packets;
 235         unsigned int total_rx_bytes;
 236         unsigned int total_rx_packets;
 237
 238         /* Tx stats */
 239         u64 tpt_old;
 240         u64 colc_old;
 241         u32 gotc;
 242         u64 gotc_old;
 243         u32 tx_timeout_count;
 244         u32 tx_fifo_head;
 245         u32 tx_head_addr;
 246         u32 tx_fifo_size;
 247         u32 tx_dma_failed;
 248         u32 tx_hwtstamp_timeouts;
 249         u32 tx_hwtstamp_skipped;
 250
 251         /* Rx */
 252         bool (*clean_rx)(struct e1000_ring *ring, int *work_done,
 253                          int work_to_do) ____cacheline_aligned_in_smp;
 254         void (*alloc_rx_buf)(struct e1000_ring *ring, int cleaned_count,
 255                              gfp_t gfp);
 256         struct e1000_ring *rx_ring;
 257
 258         u32 rx_int_delay;
 259         u32 rx_abs_int_delay;
 260
 261         /* Rx stats */
 262         u64 hw_csum_err;
 263         u64 hw_csum_good;
 264         u64 rx_hdr_split;
 265         u32 gorc;
 266         u64 gorc_old;
 267         u32 alloc_rx_buff_failed;
 268         u32 rx_dma_failed;
 269         u32 rx_hwtstamp_cleared;
 270
 271         unsigned int rx_ps_pages;
 272         u16 rx_ps_bsize0;
 273         u32 max_frame_size;
 274         u32 min_frame_size;
 275
 276         /* OS defined structs */
 277         struct net_device *netdev;
 278         struct pci_dev *pdev;
 279
 280         /* structs defined in e1000_hw.h */
 281         struct e1000_hw hw;
 282
 283         spinlock_t stats64_lock;        /* protects statistics counters */
 284         struct e1000_hw_stats stats;
 285         struct e1000_phy_info phy_info;
 286         struct e1000_phy_stats phy_stats;
 287
 288         /* Snapshot of PHY registers */
 289         struct e1000_phy_regs phy_regs;
 290
 291         struct e1000_ring test_tx_ring;
 292         struct e1000_ring test_rx_ring;
 293         u32 test_icr;
 294
 295         u32 msg_enable;
 296         unsigned int num_vectors;
 297         struct msix_entry *msix_entries;
 298         int int_mode;
 299         u32 eiac_mask;
 300
 301         u32 eeprom_wol;
 302         u32 wol;
 303         u32 pba;
 304         u32 max_hw_frame_size;
 305
 306         bool fc_autoneg;
 307
 308         unsigned int flags;
 309         unsigned int flags2;
 310         struct work_struct downshift_task;
 311         struct work_struct update_phy_task;
 312         struct work_struct print_hang_task;
 313
 314         int phy_hang_count;
 315
 316         u16 tx_ring_count;
 317         u16 rx_ring_count;
 318
 319         struct hwtstamp_config hwtstamp_config;
 320         struct delayed_work systim_overflow_work;
 321         struct sk_buff *tx_hwtstamp_skb;
 322         unsigned long tx_hwtstamp_start;
 323         struct work_struct tx_hwtstamp_work;
 324         spinlock_t systim_lock; /* protects SYSTIML/H regsters */
 325         struct cyclecounter cc;
 326         struct timecounter tc;
 327         struct ptp_clock *ptp_clock;
 328         struct ptp_clock_info ptp_clock_info;
 329         struct pm_qos_request pm_qos_req;
 330         s32 ptp_delta;
 331
 332         u16 eee_advert;
 333 };
 334
 335 struct e1000_info {
 336         enum e1000_mac_type     mac;
 337         unsigned int            flags;
 338         unsigned int            flags2;
 339         u32                     pba;
 340         u32                     max_hw_frame_size;
 341         s32                     (*get_variants)(struct e1000_adapter *);
 342         const struct e1000_mac_operations *mac_ops;
 343         const struct e1000_phy_operations *phy_ops;
 344         const struct e1000_nvm_operations *nvm_ops;
 345 };
 346
 347 s32 e1000e_get_base_timinca(struct e1000_adapter *adapter, u32 *timinca);
 348
 349 /* The system time is maintained by a 64-bit counter comprised of the 32-bit
 350  * SYSTIMH and SYSTIML registers.  How the counter increments (and therefore
 351  * its resolution) is based on the contents of the TIMINCA register - it
 352  * increments every incperiod (bits 31:24) clock ticks by incvalue (bits 23:0).
 353  * For the best accuracy, the incperiod should be as small as possible.  The
 354  * incvalue is scaled by a factor as large as possible (while still fitting
 355  * in bits 23:0) so that relatively small clock corrections can be made.
 356  *
 357  * As a result, a shift of INCVALUE_SHIFT_n is used to fit a value of
 358  * INCVALUE_n into the TIMINCA register allowing 32+8+(24-INCVALUE_SHIFT_n)
 359  * bits to count nanoseconds leaving the rest for fractional nonseconds.
 360  */
 361 #define INCVALUE_96MHZ          125
 362 #define INCVALUE_SHIFT_96MHZ    17
 363 #define INCPERIOD_SHIFT_96MHZ   2
 364 #define INCPERIOD_96MHZ         (12 >> INCPERIOD_SHIFT_96MHZ)
 365
 366 #define INCVALUE_25MHZ          40
 367 #define INCVALUE_SHIFT_25MHZ    18
 368 #define INCPERIOD_25MHZ         1
 369
 370 #define INCVALUE_24MHZ          125
 371 #define INCVALUE_SHIFT_24MHZ    14
 372 #define INCPERIOD_24MHZ         3
 373
 374 #define INCVALUE_38400KHZ       26
 375 #define INCVALUE_SHIFT_38400KHZ 19
 376 #define INCPERIOD_38400KHZ      1
 377
 378 /* Another drawback of scaling the incvalue by a large factor is the
 379  * 64-bit SYSTIM register overflows more quickly.  This is dealt with
 380  * by simply reading the clock before it overflows.
 381  *
 382  * Clock        ns bits Overflows after
 383  * ~~~~~~       ~~~~~~~ ~~~~~~~~~~~~~~~
 384  * 96MHz        47-bit  2^(47-INCPERIOD_SHIFT_96MHz) / 10^9 / 3600 = 9.77 hrs
 385  * 25MHz        46-bit  2^46 / 10^9 / 3600 = 19.55 hours
 386  */
 387 #define E1000_SYSTIM_OVERFLOW_PERIOD    (HZ * 60 * 60 * 4)
 388 #define E1000_MAX_82574_SYSTIM_REREADS  50
 389 #define E1000_82574_SYSTIM_EPSILON      (1ULL << 35ULL)
 390
 391 /* hardware capability, feature, and workaround flags */
 392 #define FLAG_HAS_AMT                      BIT(0)
 393 #define FLAG_HAS_FLASH                    BIT(1)
 394 #define FLAG_HAS_HW_VLAN_FILTER           BIT(2)
 395 #define FLAG_HAS_WOL                      BIT(3)
 396 /* reserved BIT(4) */
 397 #define FLAG_HAS_CTRLEXT_ON_LOAD          BIT(5)
 398 #define FLAG_HAS_SWSM_ON_LOAD             BIT(6)
 399 #define FLAG_HAS_JUMBO_FRAMES             BIT(7)
 400 #define FLAG_READ_ONLY_NVM                BIT(8)
 401 #define FLAG_IS_ICH                       BIT(9)
 402 #define FLAG_HAS_MSIX                     BIT(10)
 403 #define FLAG_HAS_SMART_POWER_DOWN         BIT(11)
 404 #define FLAG_IS_QUAD_PORT_A               BIT(12)
 405 #define FLAG_IS_QUAD_PORT                 BIT(13)
 406 #define FLAG_HAS_HW_TIMESTAMP             BIT(14)
 407 #define FLAG_APME_IN_WUC                  BIT(15)
 408 #define FLAG_APME_IN_CTRL3                BIT(16)
 409 #define FLAG_APME_CHECK_PORT_B            BIT(17)
 410 #define FLAG_DISABLE_FC_PAUSE_TIME        BIT(18)
 411 #define FLAG_NO_WAKE_UCAST                BIT(19)
 412 #define FLAG_MNG_PT_ENABLED               BIT(20)
 413 #define FLAG_RESET_OVERWRITES_LAA         BIT(21)
 414 #define FLAG_TARC_SPEED_MODE_BIT          BIT(22)
 415 #define FLAG_TARC_SET_BIT_ZERO            BIT(23)
 416 #define FLAG_RX_NEEDS_RESTART             BIT(24)
 417 #define FLAG_LSC_GIG_SPEED_DROP           BIT(25)
 418 #define FLAG_SMART_POWER_DOWN             BIT(26)
 419 #define FLAG_MSI_ENABLED                  BIT(27)
 420 /* reserved BIT(28) */
 421 #define FLAG_TSO_FORCE                    BIT(29)
 422 #define FLAG_RESTART_NOW                  BIT(30)
 423 #define FLAG_MSI_TEST_FAILED              BIT(31)
 424
 425 #define FLAG2_CRC_STRIPPING               BIT(0)
 426 #define FLAG2_HAS_PHY_WAKEUP              BIT(1)
 427 #define FLAG2_IS_DISCARDING               BIT(2)
 428 #define FLAG2_DISABLE_ASPM_L1             BIT(3)
 429 #define FLAG2_HAS_PHY_STATS               BIT(4)
 430 #define FLAG2_HAS_EEE                     BIT(5)
 431 #define FLAG2_DMA_BURST                   BIT(6)
 432 #define FLAG2_DISABLE_ASPM_L0S            BIT(7)
 433 #define FLAG2_DISABLE_AIM                 BIT(8)
 434 #define FLAG2_CHECK_PHY_HANG              BIT(9)
 435 #define FLAG2_NO_DISABLE_RX               BIT(10)
 436 #define FLAG2_PCIM2PCI_ARBITER_WA         BIT(11)
 437 #define FLAG2_DFLT_CRC_STRIPPING          BIT(12)
 438 #define FLAG2_CHECK_RX_HWTSTAMP           BIT(13)
 439 #define FLAG2_CHECK_SYSTIM_OVERFLOW       BIT(14)
 440
 441 #define E1000_RX_DESC_PS(R, i)      \
 442         (&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))
 443 #define E1000_RX_DESC_EXT(R, i)     \
 444         (&(((union e1000_rx_desc_extended *)((R).desc))[i]))
 445 #define E1000_GET_DESC(R, i, type)      (&(((struct type *)((R).desc))[i]))
 446 #define E1000_TX_DESC(R, i)             E1000_GET_DESC(R, i, e1000_tx_desc)
 447 #define E1000_CONTEXT_DESC(R, i)        E1000_GET_DESC(R, i, e1000_context_desc)
 448
 449 enum e1000_state_t {
 450         __E1000_TESTING,
 451         __E1000_RESETTING,
 452         __E1000_ACCESS_SHARED_RESOURCE,
 453         __E1000_DOWN
 454 };
 455
 456 enum latency_range {
 457         lowest_latency = 0,
 458         low_latency = 1,
 459         bulk_latency = 2,
 460         latency_invalid = 255
 461 };
 462
 463 extern char e1000e_driver_name[];
 464 extern const char e1000e_driver_version[];
 465
 466 void e1000e_check_options(struct e1000_adapter *adapter);
 467 void e1000e_set_ethtool_ops(struct net_device *netdev);
 468
 469 int e1000e_open(struct net_device *netdev);
 470 int e1000e_close(struct net_device *netdev);
 471 void e1000e_up(struct e1000_adapter *adapter);
 472 void e1000e_down(struct e1000_adapter *adapter, bool reset);
 473 void e1000e_reinit_locked(struct e1000_adapter *adapter);
 474 void e1000e_reset(struct e1000_adapter *adapter);
 475 void e1000e_power_up_phy(struct e1000_adapter *adapter);
 476 int e1000e_setup_rx_resources(struct e1000_ring *ring);
 477 int e1000e_setup_tx_resources(struct e1000_ring *ring);
 478 void e1000e_free_rx_resources(struct e1000_ring *ring);
 479 void e1000e_free_tx_resources(struct e1000_ring *ring);
 480 void e1000e_get_stats64(struct net_device *netdev,
 481                         struct rtnl_link_stats64 *stats);
 482 void e1000e_set_interrupt_capability(struct e1000_adapter *adapter);
 483 void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter);
 484 void e1000e_get_hw_control(struct e1000_adapter *adapter);
 485 void e1000e_release_hw_control(struct e1000_adapter *adapter);
 486 void e1000e_write_itr(struct e1000_adapter *adapter, u32 itr);
 487
 488 extern unsigned int copybreak;
 489
 490 extern const struct e1000_info e1000_82571_info;
 491 extern const struct e1000_info e1000_82572_info;
 492 extern const struct e1000_info e1000_82573_info;
 493 extern const struct e1000_info e1000_82574_info;
 494 extern const struct e1000_info e1000_82583_info;
 495 extern const struct e1000_info e1000_ich8_info;
 496 extern const struct e1000_info e1000_ich9_info;
 497 extern const struct e1000_info e1000_ich10_info;
 498 extern const struct e1000_info e1000_pch_info;
 499 extern const struct e1000_info e1000_pch2_info;
 500 extern const struct e1000_info e1000_pch_lpt_info;
 501 extern const struct e1000_info e1000_pch_spt_info;
 502 extern const struct e1000_info e1000_pch_cnp_info;
 503 extern const struct e1000_info e1000_es2_info;
 504
 505 void e1000e_ptp_init(struct e1000_adapter *adapter);
 506 void e1000e_ptp_remove(struct e1000_adapter *adapter);
 507
 508 static inline s32 e1000_phy_hw_reset(struct e1000_hw *hw)
 509 {
 510         return hw->phy.ops.reset(hw);
 511 }
 512
 513 static inline s32 e1e_rphy(struct e1000_hw *hw, u32 offset, u16 *data)
 514 {
 515         return hw->phy.ops.read_reg(hw, offset, data);
 516 }
 517
 518 static inline s32 e1e_rphy_locked(struct e1000_hw *hw, u32 offset, u16 *data)
 519 {
 520         return hw->phy.ops.read_reg_locked(hw, offset, data);
 521 }
 522
 523 static inline s32 e1e_wphy(struct e1000_hw *hw, u32 offset, u16 data)
 524 {
 525         return hw->phy.ops.write_reg(hw, offset, data);
 526 }
 527
 528 static inline s32 e1e_wphy_locked(struct e1000_hw *hw, u32 offset, u16 data)
 529 {
 530         return hw->phy.ops.write_reg_locked(hw, offset, data);
 531 }
 532
 533 void e1000e_reload_nvm_generic(struct e1000_hw *hw);
 534
 535 static inline s32 e1000e_read_mac_addr(struct e1000_hw *hw)
 536 {
 537         if (hw->mac.ops.read_mac_addr)
 538                 return hw->mac.ops.read_mac_addr(hw);
 539
 540         return e1000_read_mac_addr_generic(hw);
 541 }
 542
 543 static inline s32 e1000_validate_nvm_checksum(struct e1000_hw *hw)
 544 {
 545         return hw->nvm.ops.validate(hw);
 546 }
 547
 548 static inline s32 e1000e_update_nvm_checksum(struct e1000_hw *hw)
 549 {
 550         return hw->nvm.ops.update(hw);
 551 }
 552
 553 static inline s32 e1000_read_nvm(struct e1000_hw *hw, u16 offset, u16 words,
 554                                  u16 *data)
 555 {
 556         return hw->nvm.ops.read(hw, offset, words, data);
 557 }
 558
 559 static inline s32 e1000_write_nvm(struct e1000_hw *hw, u16 offset, u16 words,
 560                                   u16 *data)
 561 {
 562         return hw->nvm.ops.write(hw, offset, words, data);
 563 }
 564
 565 static inline s32 e1000_get_phy_info(struct e1000_hw *hw)
 566 {
 567         return hw->phy.ops.get_info(hw);
 568 }
 569
 570 static inline u32 __er32(struct e1000_hw *hw, unsigned long reg)
 571 {
 572         return readl(hw->hw_addr + reg);
 573 }
 574
 575 #define er32(reg)       __er32(hw, E1000_##reg)
 576
 577 s32 __ew32_prepare(struct e1000_hw *hw);
 578 void __ew32(struct e1000_hw *hw, unsigned long reg, u32 val);
 579
 580 #define ew32(reg, val)  __ew32(hw, E1000_##reg, (val))
 581
 582 #define e1e_flush()     er32(STATUS)
 583
 584 #define E1000_WRITE_REG_ARRAY(a, reg, offset, value) \
 585         (__ew32((a), (reg + ((offset) << 2)), (value)))
 586
 587 #define E1000_READ_REG_ARRAY(a, reg, offset) \
 588         (readl((a)->hw_addr + reg + ((offset) << 2)))
 589
 590 #endif /* _E1000_H_ */