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

   1 /* Intel PRO/1000 Linux driver
   2  * Copyright(c) 1999 - 2014 Intel Corporation.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms and conditions of the GNU General Public License,
   6  * version 2, as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  11  * more details.
  12  *
  13  * The full GNU General Public License is included in this distribution in
  14  * the file called "COPYING".
  15  *
  16  * Contact Information:
  17  * Linux NICS <linux.nics@intel.com>
  18  * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  19  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  20  */
  21
  22 /* Linux PRO/1000 Ethernet Driver main header file */
  23
  24 #ifndef _E1000_H_
  25 #define _E1000_H_
  26
  27 #include <linux/bitops.h>
  28 #include <linux/types.h>
  29 #include <linux/timer.h>
  30 #include <linux/workqueue.h>
  31 #include <linux/io.h>
  32 #include <linux/netdevice.h>
  33 #include <linux/pci.h>
  34 #include <linux/pci-aspm.h>
  35 #include <linux/crc32.h>
  36 #include <linux/if_vlan.h>
  37 #include <linux/timecounter.h>
  38 #include <linux/net_tstamp.h>
  39 #include <linux/ptp_clock_kernel.h>
  40 #include <linux/ptp_classify.h>
  41 #include <linux/mii.h>
  42 #include <linux/mdio.h>
  43 #include "hw.h"
  44
  45 struct e1000_info;
  46
  47 #define e_dbg(format, arg...) \
  48         netdev_dbg(hw->adapter->netdev, format, ## arg)
  49 #define e_err(format, arg...) \
  50         netdev_err(adapter->netdev, format, ## arg)
  51 #define e_info(format, arg...) \
  52         netdev_info(adapter->netdev, format, ## arg)
  53 #define e_warn(format, arg...) \
  54         netdev_warn(adapter->netdev, format, ## arg)
  55 #define e_notice(format, arg...) \
  56         netdev_notice(adapter->netdev, format, ## arg)
  57
  58 /* Interrupt modes, as used by the IntMode parameter */
  59 #define E1000E_INT_MODE_LEGACY          0
  60 #define E1000E_INT_MODE_MSI             1
  61 #define E1000E_INT_MODE_MSIX            2
  62
  63 /* Tx/Rx descriptor defines */
  64 #define E1000_DEFAULT_TXD               256
  65 #define E1000_MAX_TXD                   4096
  66 #define E1000_MIN_TXD                   64
  67
  68 #define E1000_DEFAULT_RXD               256
  69 #define E1000_MAX_RXD                   4096
  70 #define E1000_MIN_RXD                   64
  71
  72 #define E1000_MIN_ITR_USECS             10 /* 100000 irq/sec */
  73 #define E1000_MAX_ITR_USECS             10000 /* 100    irq/sec */
  74
  75 #define E1000_FC_PAUSE_TIME             0x0680 /* 858 usec */
  76
  77 /* How many Tx Descriptors do we need to call netif_wake_queue ? */
  78 /* How many Rx Buffers do we bundle into one write to the hardware ? */
  79 #define E1000_RX_BUFFER_WRITE           16 /* Must be power of 2 */
  80
  81 #define AUTO_ALL_MODES                  0
  82 #define E1000_EEPROM_APME               0x0400
  83
  84 #define E1000_MNG_VLAN_NONE             (-1)
  85
  86 #define DEFAULT_JUMBO                   9234
  87
  88 /* Time to wait before putting the device into D3 if there's no link (in ms). */
  89 #define LINK_TIMEOUT            100
  90
  91 /* Count for polling __E1000_RESET condition every 10-20msec.
  92  * Experimentation has shown the reset can take approximately 210msec.
  93  */
  94 #define E1000_CHECK_RESET_COUNT         25
  95
  96 #define DEFAULT_RDTR                    0
  97 #define DEFAULT_RADV                    8
  98 #define BURST_RDTR                      0x20
  99 #define BURST_RADV                      0x20
 100
 101 /* in the case of WTHRESH, it appears at least the 82571/2 hardware
 102  * writes back 4 descriptors when WTHRESH=5, and 3 descriptors when
 103  * WTHRESH=4, so a setting of 5 gives the most efficient bus
 104  * utilization but to avoid possible Tx stalls, set it to 1
 105  */
 106 #define E1000_TXDCTL_DMA_BURST_ENABLE                          \
 107         (E1000_TXDCTL_GRAN | /* set descriptor granularity */  \
 108          E1000_TXDCTL_COUNT_DESC |                             \
 109          (1 << 16) | /* wthresh must be +1 more than desired */\
 110          (1 << 8)  | /* hthresh */                             \
 111          0x1f)       /* pthresh */
 112
 113 #define E1000_RXDCTL_DMA_BURST_ENABLE                          \
 114         (0x01000000 | /* set descriptor granularity */         \
 115          (4 << 16)  | /* set writeback threshold    */         \
 116          (4 << 8)   | /* set prefetch threshold     */         \
 117          0x20)        /* set hthresh                */
 118
 119 #define E1000_TIDV_FPD (1 << 31)
 120 #define E1000_RDTR_FPD (1 << 31)
 121
 122 enum e1000_boards {
 123         board_82571,
 124         board_82572,
 125         board_82573,
 126         board_82574,
 127         board_82583,
 128         board_80003es2lan,
 129         board_ich8lan,
 130         board_ich9lan,
 131         board_ich10lan,
 132         board_pchlan,
 133         board_pch2lan,
 134         board_pch_lpt,
 135         board_pch_spt
 136 };
 137
 138 struct e1000_ps_page {
 139         struct page *page;
 140         u64 dma; /* must be u64 - written to hw */
 141 };
 142
 143 /* wrappers around a pointer to a socket buffer,
 144  * so a DMA handle can be stored along with the buffer
 145  */
 146 struct e1000_buffer {
 147         dma_addr_t dma;
 148         struct sk_buff *skb;
 149         union {
 150                 /* Tx */
 151                 struct {
 152                         unsigned long time_stamp;
 153                         u16 length;
 154                         u16 next_to_watch;
 155                         unsigned int segs;
 156                         unsigned int bytecount;
 157                         u16 mapped_as_page;
 158                 };
 159                 /* Rx */
 160                 struct {
 161                         /* arrays of page information for packet split */
 162                         struct e1000_ps_page *ps_pages;
 163                         struct page *page;
 164                 };
 165         };
 166 };
 167
 168 struct e1000_ring {
 169         struct e1000_adapter *adapter;  /* back pointer to adapter */
 170         void *desc;                     /* pointer to ring memory  */
 171         dma_addr_t dma;                 /* phys address of ring    */
 172         unsigned int size;              /* length of ring in bytes */
 173         unsigned int count;             /* number of desc. in ring */
 174
 175         u16 next_to_use;
 176         u16 next_to_clean;
 177
 178         void __iomem *head;
 179         void __iomem *tail;
 180
 181         /* array of buffer information structs */
 182         struct e1000_buffer *buffer_info;
 183
 184         char name[IFNAMSIZ + 5];
 185         u32 ims_val;
 186         u32 itr_val;
 187         void __iomem *itr_register;
 188         int set_itr;
 189
 190         struct sk_buff *rx_skb_top;
 191 };
 192
 193 /* PHY register snapshot values */
 194 struct e1000_phy_regs {
 195         u16 bmcr;               /* basic mode control register    */
 196         u16 bmsr;               /* basic mode status register     */
 197         u16 advertise;          /* auto-negotiation advertisement */
 198         u16 lpa;                /* link partner ability register  */
 199         u16 expansion;          /* auto-negotiation expansion reg */
 200         u16 ctrl1000;           /* 1000BASE-T control register    */
 201         u16 stat1000;           /* 1000BASE-T status register     */
 202         u16 estatus;            /* extended status register       */
 203 };
 204
 205 /* board specific private data structure */
 206 struct e1000_adapter {
 207         struct timer_list watchdog_timer;
 208         struct timer_list phy_info_timer;
 209         struct timer_list blink_timer;
 210
 211         struct work_struct reset_task;
 212         struct work_struct watchdog_task;
 213
 214         const struct e1000_info *ei;
 215
 216         unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
 217         u32 bd_number;
 218         u32 rx_buffer_len;
 219         u16 mng_vlan_id;
 220         u16 link_speed;
 221         u16 link_duplex;
 222         u16 eeprom_vers;
 223
 224         /* track device up/down/testing state */
 225         unsigned long state;
 226
 227         /* Interrupt Throttle Rate */
 228         u32 itr;
 229         u32 itr_setting;
 230         u16 tx_itr;
 231         u16 rx_itr;
 232
 233         /* Tx - one ring per active queue */
 234         struct e1000_ring *tx_ring ____cacheline_aligned_in_smp;
 235         u32 tx_fifo_limit;
 236
 237         struct napi_struct napi;
 238
 239         unsigned int uncorr_errors;     /* uncorrectable ECC errors */
 240         unsigned int corr_errors;       /* correctable ECC errors */
 241         unsigned int restart_queue;
 242         u32 txd_cmd;
 243
 244         bool detect_tx_hung;
 245         bool tx_hang_recheck;
 246         u8 tx_timeout_factor;
 247
 248         u32 tx_int_delay;
 249         u32 tx_abs_int_delay;
 250
 251         unsigned int total_tx_bytes;
 252         unsigned int total_tx_packets;
 253         unsigned int total_rx_bytes;
 254         unsigned int total_rx_packets;
 255
 256         /* Tx stats */
 257         u64 tpt_old;
 258         u64 colc_old;
 259         u32 gotc;
 260         u64 gotc_old;
 261         u32 tx_timeout_count;
 262         u32 tx_fifo_head;
 263         u32 tx_head_addr;
 264         u32 tx_fifo_size;
 265         u32 tx_dma_failed;
 266         u32 tx_hwtstamp_timeouts;
 267
 268         /* Rx */
 269         bool (*clean_rx)(struct e1000_ring *ring, int *work_done,
 270                          int work_to_do) ____cacheline_aligned_in_smp;
 271         void (*alloc_rx_buf)(struct e1000_ring *ring, int cleaned_count,
 272                              gfp_t gfp);
 273         struct e1000_ring *rx_ring;
 274
 275         u32 rx_int_delay;
 276         u32 rx_abs_int_delay;
 277
 278         /* Rx stats */
 279         u64 hw_csum_err;
 280         u64 hw_csum_good;
 281         u64 rx_hdr_split;
 282         u32 gorc;
 283         u64 gorc_old;
 284         u32 alloc_rx_buff_failed;
 285         u32 rx_dma_failed;
 286         u32 rx_hwtstamp_cleared;
 287
 288         unsigned int rx_ps_pages;
 289         u16 rx_ps_bsize0;
 290         u32 max_frame_size;
 291         u32 min_frame_size;
 292
 293         /* OS defined structs */
 294         struct net_device *netdev;
 295         struct pci_dev *pdev;
 296
 297         /* structs defined in e1000_hw.h */
 298         struct e1000_hw hw;
 299
 300         spinlock_t stats64_lock;        /* protects statistics counters */
 301         struct e1000_hw_stats stats;
 302         struct e1000_phy_info phy_info;
 303         struct e1000_phy_stats phy_stats;
 304
 305         /* Snapshot of PHY registers */
 306         struct e1000_phy_regs phy_regs;
 307
 308         struct e1000_ring test_tx_ring;
 309         struct e1000_ring test_rx_ring;
 310         u32 test_icr;
 311
 312         u32 msg_enable;
 313         unsigned int num_vectors;
 314         struct msix_entry *msix_entries;
 315         int int_mode;
 316         u32 eiac_mask;
 317
 318         u32 eeprom_wol;
 319         u32 wol;
 320         u32 pba;
 321         u32 max_hw_frame_size;
 322
 323         bool fc_autoneg;
 324
 325         unsigned int flags;
 326         unsigned int flags2;
 327         struct work_struct downshift_task;
 328         struct work_struct update_phy_task;
 329         struct work_struct print_hang_task;
 330
 331         int phy_hang_count;
 332
 333         u16 tx_ring_count;
 334         u16 rx_ring_count;
 335
 336         struct hwtstamp_config hwtstamp_config;
 337         struct delayed_work systim_overflow_work;
 338         struct sk_buff *tx_hwtstamp_skb;
 339         unsigned long tx_hwtstamp_start;
 340         struct work_struct tx_hwtstamp_work;
 341         spinlock_t systim_lock; /* protects SYSTIML/H regsters */
 342         struct cyclecounter cc;
 343         struct timecounter tc;
 344         struct ptp_clock *ptp_clock;
 345         struct ptp_clock_info ptp_clock_info;
 346         struct pm_qos_request pm_qos_req;
 347
 348         u16 eee_advert;
 349 };
 350
 351 struct e1000_info {
 352         enum e1000_mac_type     mac;
 353         unsigned int            flags;
 354         unsigned int            flags2;
 355         u32                     pba;
 356         u32                     max_hw_frame_size;
 357         s32                     (*get_variants)(struct e1000_adapter *);
 358         const struct e1000_mac_operations *mac_ops;
 359         const struct e1000_phy_operations *phy_ops;
 360         const struct e1000_nvm_operations *nvm_ops;
 361 };
 362
 363 s32 e1000e_get_base_timinca(struct e1000_adapter *adapter, u32 *timinca);
 364
 365 /* The system time is maintained by a 64-bit counter comprised of the 32-bit
 366  * SYSTIMH and SYSTIML registers.  How the counter increments (and therefore
 367  * its resolution) is based on the contents of the TIMINCA register - it
 368  * increments every incperiod (bits 31:24) clock ticks by incvalue (bits 23:0).
 369  * For the best accuracy, the incperiod should be as small as possible.  The
 370  * incvalue is scaled by a factor as large as possible (while still fitting
 371  * in bits 23:0) so that relatively small clock corrections can be made.
 372  *
 373  * As a result, a shift of INCVALUE_SHIFT_n is used to fit a value of
 374  * INCVALUE_n into the TIMINCA register allowing 32+8+(24-INCVALUE_SHIFT_n)
 375  * bits to count nanoseconds leaving the rest for fractional nonseconds.
 376  */
 377 #define INCVALUE_96MHz          125
 378 #define INCVALUE_SHIFT_96MHz    17
 379 #define INCPERIOD_SHIFT_96MHz   2
 380 #define INCPERIOD_96MHz         (12 >> INCPERIOD_SHIFT_96MHz)
 381
 382 #define INCVALUE_25MHz          40
 383 #define INCVALUE_SHIFT_25MHz    18
 384 #define INCPERIOD_25MHz         1
 385
 386 /* Another drawback of scaling the incvalue by a large factor is the
 387  * 64-bit SYSTIM register overflows more quickly.  This is dealt with
 388  * by simply reading the clock before it overflows.
 389  *
 390  * Clock        ns bits Overflows after
 391  * ~~~~~~       ~~~~~~~ ~~~~~~~~~~~~~~~
 392  * 96MHz        47-bit  2^(47-INCPERIOD_SHIFT_96MHz) / 10^9 / 3600 = 9.77 hrs
 393  * 25MHz        46-bit  2^46 / 10^9 / 3600 = 19.55 hours
 394  */
 395 #define E1000_SYSTIM_OVERFLOW_PERIOD    (HZ * 60 * 60 * 4)
 396 #define E1000_MAX_82574_SYSTIM_REREADS  50
 397 #define E1000_82574_SYSTIM_EPSILON      (1ULL << 35ULL)
 398
 399 /* hardware capability, feature, and workaround flags */
 400 #define FLAG_HAS_AMT                      (1 << 0)
 401 #define FLAG_HAS_FLASH                    (1 << 1)
 402 #define FLAG_HAS_HW_VLAN_FILTER           (1 << 2)
 403 #define FLAG_HAS_WOL                      (1 << 3)
 404 /* reserved bit4 */
 405 #define FLAG_HAS_CTRLEXT_ON_LOAD          (1 << 5)
 406 #define FLAG_HAS_SWSM_ON_LOAD             (1 << 6)
 407 #define FLAG_HAS_JUMBO_FRAMES             (1 << 7)
 408 #define FLAG_READ_ONLY_NVM                (1 << 8)
 409 #define FLAG_IS_ICH                       (1 << 9)
 410 #define FLAG_HAS_MSIX                     (1 << 10)
 411 #define FLAG_HAS_SMART_POWER_DOWN         (1 << 11)
 412 #define FLAG_IS_QUAD_PORT_A               (1 << 12)
 413 #define FLAG_IS_QUAD_PORT                 (1 << 13)
 414 #define FLAG_HAS_HW_TIMESTAMP             (1 << 14)
 415 #define FLAG_APME_IN_WUC                  (1 << 15)
 416 #define FLAG_APME_IN_CTRL3                (1 << 16)
 417 #define FLAG_APME_CHECK_PORT_B            (1 << 17)
 418 #define FLAG_DISABLE_FC_PAUSE_TIME        (1 << 18)
 419 #define FLAG_NO_WAKE_UCAST                (1 << 19)
 420 #define FLAG_MNG_PT_ENABLED               (1 << 20)
 421 #define FLAG_RESET_OVERWRITES_LAA         (1 << 21)
 422 #define FLAG_TARC_SPEED_MODE_BIT          (1 << 22)
 423 #define FLAG_TARC_SET_BIT_ZERO            (1 << 23)
 424 #define FLAG_RX_NEEDS_RESTART             (1 << 24)
 425 #define FLAG_LSC_GIG_SPEED_DROP           (1 << 25)
 426 #define FLAG_SMART_POWER_DOWN             (1 << 26)
 427 #define FLAG_MSI_ENABLED                  (1 << 27)
 428 /* reserved (1 << 28) */
 429 #define FLAG_TSO_FORCE                    (1 << 29)
 430 #define FLAG_RESTART_NOW                  (1 << 30)
 431 #define FLAG_MSI_TEST_FAILED              (1 << 31)
 432
 433 #define FLAG2_CRC_STRIPPING               (1 << 0)
 434 #define FLAG2_HAS_PHY_WAKEUP              (1 << 1)
 435 #define FLAG2_IS_DISCARDING               (1 << 2)
 436 #define FLAG2_DISABLE_ASPM_L1             (1 << 3)
 437 #define FLAG2_HAS_PHY_STATS               (1 << 4)
 438 #define FLAG2_HAS_EEE                     (1 << 5)
 439 #define FLAG2_DMA_BURST                   (1 << 6)
 440 #define FLAG2_DISABLE_ASPM_L0S            (1 << 7)
 441 #define FLAG2_DISABLE_AIM                 (1 << 8)
 442 #define FLAG2_CHECK_PHY_HANG              (1 << 9)
 443 #define FLAG2_NO_DISABLE_RX               (1 << 10)
 444 #define FLAG2_PCIM2PCI_ARBITER_WA         (1 << 11)
 445 #define FLAG2_DFLT_CRC_STRIPPING          (1 << 12)
 446 #define FLAG2_CHECK_RX_HWTSTAMP           (1 << 13)
 447
 448 #define E1000_RX_DESC_PS(R, i)      \
 449         (&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))
 450 #define E1000_RX_DESC_EXT(R, i)     \
 451         (&(((union e1000_rx_desc_extended *)((R).desc))[i]))
 452 #define E1000_GET_DESC(R, i, type)      (&(((struct type *)((R).desc))[i]))
 453 #define E1000_TX_DESC(R, i)             E1000_GET_DESC(R, i, e1000_tx_desc)
 454 #define E1000_CONTEXT_DESC(R, i)        E1000_GET_DESC(R, i, e1000_context_desc)
 455
 456 enum e1000_state_t {
 457         __E1000_TESTING,
 458         __E1000_RESETTING,
 459         __E1000_ACCESS_SHARED_RESOURCE,
 460         __E1000_DOWN
 461 };
 462
 463 enum latency_range {
 464         lowest_latency = 0,
 465         low_latency = 1,
 466         bulk_latency = 2,
 467         latency_invalid = 255
 468 };
 469
 470 extern char e1000e_driver_name[];
 471 extern const char e1000e_driver_version[];
 472
 473 void e1000e_check_options(struct e1000_adapter *adapter);
 474 void e1000e_set_ethtool_ops(struct net_device *netdev);
 475
 476 int e1000e_up(struct e1000_adapter *adapter);
 477 void e1000e_down(struct e1000_adapter *adapter, bool reset);
 478 void e1000e_reinit_locked(struct e1000_adapter *adapter);
 479 void e1000e_reset(struct e1000_adapter *adapter);
 480 void e1000e_power_up_phy(struct e1000_adapter *adapter);
 481 int e1000e_setup_rx_resources(struct e1000_ring *ring);
 482 int e1000e_setup_tx_resources(struct e1000_ring *ring);
 483 void e1000e_free_rx_resources(struct e1000_ring *ring);
 484 void e1000e_free_tx_resources(struct e1000_ring *ring);
 485 struct rtnl_link_stats64 *e1000e_get_stats64(struct net_device *netdev,
 486                                              struct rtnl_link_stats64 *stats);
 487 void e1000e_set_interrupt_capability(struct e1000_adapter *adapter);
 488 void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter);
 489 void e1000e_get_hw_control(struct e1000_adapter *adapter);
 490 void e1000e_release_hw_control(struct e1000_adapter *adapter);
 491 void e1000e_write_itr(struct e1000_adapter *adapter, u32 itr);
 492
 493 extern unsigned int copybreak;
 494
 495 extern const struct e1000_info e1000_82571_info;
 496 extern const struct e1000_info e1000_82572_info;
 497 extern const struct e1000_info e1000_82573_info;
 498 extern const struct e1000_info e1000_82574_info;
 499 extern const struct e1000_info e1000_82583_info;
 500 extern const struct e1000_info e1000_ich8_info;
 501 extern const struct e1000_info e1000_ich9_info;
 502 extern const struct e1000_info e1000_ich10_info;
 503 extern const struct e1000_info e1000_pch_info;
 504 extern const struct e1000_info e1000_pch2_info;
 505 extern const struct e1000_info e1000_pch_lpt_info;
 506 extern const struct e1000_info e1000_pch_spt_info;
 507 extern const struct e1000_info e1000_es2_info;
 508
 509 void e1000e_ptp_init(struct e1000_adapter *adapter);
 510 void e1000e_ptp_remove(struct e1000_adapter *adapter);
 511
 512 static inline s32 e1000_phy_hw_reset(struct e1000_hw *hw)
 513 {
 514         return hw->phy.ops.reset(hw);
 515 }
 516
 517 static inline s32 e1e_rphy(struct e1000_hw *hw, u32 offset, u16 *data)
 518 {
 519         return hw->phy.ops.read_reg(hw, offset, data);
 520 }
 521
 522 static inline s32 e1e_rphy_locked(struct e1000_hw *hw, u32 offset, u16 *data)
 523 {
 524         return hw->phy.ops.read_reg_locked(hw, offset, data);
 525 }
 526
 527 static inline s32 e1e_wphy(struct e1000_hw *hw, u32 offset, u16 data)
 528 {
 529         return hw->phy.ops.write_reg(hw, offset, data);
 530 }
 531
 532 static inline s32 e1e_wphy_locked(struct e1000_hw *hw, u32 offset, u16 data)
 533 {
 534         return hw->phy.ops.write_reg_locked(hw, offset, data);
 535 }
 536
 537 void e1000e_reload_nvm_generic(struct e1000_hw *hw);
 538
 539 static inline s32 e1000e_read_mac_addr(struct e1000_hw *hw)
 540 {
 541         if (hw->mac.ops.read_mac_addr)
 542                 return hw->mac.ops.read_mac_addr(hw);
 543
 544         return e1000_read_mac_addr_generic(hw);
 545 }
 546
 547 static inline s32 e1000_validate_nvm_checksum(struct e1000_hw *hw)
 548 {
 549         return hw->nvm.ops.validate(hw);
 550 }
 551
 552 static inline s32 e1000e_update_nvm_checksum(struct e1000_hw *hw)
 553 {
 554         return hw->nvm.ops.update(hw);
 555 }
 556
 557 static inline s32 e1000_read_nvm(struct e1000_hw *hw, u16 offset, u16 words,
 558                                  u16 *data)
 559 {
 560         return hw->nvm.ops.read(hw, offset, words, data);
 561 }
 562
 563 static inline s32 e1000_write_nvm(struct e1000_hw *hw, u16 offset, u16 words,
 564                                   u16 *data)
 565 {
 566         return hw->nvm.ops.write(hw, offset, words, data);
 567 }
 568
 569 static inline s32 e1000_get_phy_info(struct e1000_hw *hw)
 570 {
 571         return hw->phy.ops.get_info(hw);
 572 }
 573
 574 static inline u32 __er32(struct e1000_hw *hw, unsigned long reg)
 575 {
 576         return readl(hw->hw_addr + reg);
 577 }
 578
 579 #define er32(reg)       __er32(hw, E1000_##reg)
 580
 581 s32 __ew32_prepare(struct e1000_hw *hw);
 582 void __ew32(struct e1000_hw *hw, unsigned long reg, u32 val);
 583
 584 #define ew32(reg, val)  __ew32(hw, E1000_##reg, (val))
 585
 586 #define e1e_flush()     er32(STATUS)
 587
 588 #define E1000_WRITE_REG_ARRAY(a, reg, offset, value) \
 589         (__ew32((a), (reg + ((offset) << 2)), (value)))
 590
 591 #define E1000_READ_REG_ARRAY(a, reg, offset) \
 592         (readl((a)->hw_addr + reg + ((offset) << 2)))
 593
 594 #endif /* _E1000_H_ */