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

   1 /* Intel PRO/1000 Linux driver
   2  * Copyright(c) 1999 - 2015 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 <linux/pm_qos.h>
  44 #include "hw.h"
  45
  46 struct e1000_info;
  47
  48 #define e_dbg(format, arg...) \
  49         netdev_dbg(hw->adapter->netdev, format, ## arg)
  50 #define e_err(format, arg...) \
  51         netdev_err(adapter->netdev, format, ## arg)
  52 #define e_info(format, arg...) \
  53         netdev_info(adapter->netdev, format, ## arg)
  54 #define e_warn(format, arg...) \
  55         netdev_warn(adapter->netdev, format, ## arg)
  56 #define e_notice(format, arg...) \
  57         netdev_notice(adapter->netdev, format, ## arg)
  58
  59 /* Interrupt modes, as used by the IntMode parameter */
  60 #define E1000E_INT_MODE_LEGACY          0
  61 #define E1000E_INT_MODE_MSI             1
  62 #define E1000E_INT_MODE_MSIX            2
  63
  64 /* Tx/Rx descriptor defines */
  65 #define E1000_DEFAULT_TXD               256
  66 #define E1000_MAX_TXD                   4096
  67 #define E1000_MIN_TXD                   64
  68
  69 #define E1000_DEFAULT_RXD               256
  70 #define E1000_MAX_RXD                   4096
  71 #define E1000_MIN_RXD                   64
  72
  73 #define E1000_MIN_ITR_USECS             10 /* 100000 irq/sec */
  74 #define E1000_MAX_ITR_USECS             10000 /* 100    irq/sec */
  75
  76 #define E1000_FC_PAUSE_TIME             0x0680 /* 858 usec */
  77
  78 /* How many Tx Descriptors do we need to call netif_wake_queue ? */
  79 /* How many Rx Buffers do we bundle into one write to the hardware ? */
  80 #define E1000_RX_BUFFER_WRITE           16 /* Must be power of 2 */
  81
  82 #define AUTO_ALL_MODES                  0
  83 #define E1000_EEPROM_APME               0x0400
  84
  85 #define E1000_MNG_VLAN_NONE             (-1)
  86
  87 #define DEFAULT_JUMBO                   9234
  88
  89 /* Time to wait before putting the device into D3 if there's no link (in ms). */
  90 #define LINK_TIMEOUT            100
  91
  92 /* Count for polling __E1000_RESET condition every 10-20msec.
  93  * Experimentation has shown the reset can take approximately 210msec.
  94  */
  95 #define E1000_CHECK_RESET_COUNT         25
  96
  97 #define DEFAULT_RDTR                    0
  98 #define DEFAULT_RADV                    8
  99 #define BURST_RDTR                      0x20
 100 #define BURST_RADV                      0x20
 101 #define PCICFG_DESC_RING_STATUS         0xe4
 102 #define FLUSH_DESC_REQUIRED             0x100
 103
 104 /* in the case of WTHRESH, it appears at least the 82571/2 hardware
 105  * writes back 4 descriptors when WTHRESH=5, and 3 descriptors when
 106  * WTHRESH=4, so a setting of 5 gives the most efficient bus
 107  * utilization but to avoid possible Tx stalls, set it to 1
 108  */
 109 #define E1000_TXDCTL_DMA_BURST_ENABLE                          \
 110         (E1000_TXDCTL_GRAN | /* set descriptor granularity */  \
 111          E1000_TXDCTL_COUNT_DESC |                             \
 112          (1u << 16) | /* wthresh must be +1 more than desired */\
 113          (1u << 8)  | /* hthresh */                             \
 114          0x1f)        /* pthresh */
 115
 116 #define E1000_RXDCTL_DMA_BURST_ENABLE                          \
 117         (0x01000000 | /* set descriptor granularity */         \
 118          (4u << 16) | /* set writeback threshold    */         \
 119          (4u << 8)  | /* set prefetch threshold     */         \
 120          0x20)        /* set hthresh                */
 121
 122 #define E1000_TIDV_FPD BIT(31)
 123 #define E1000_RDTR_FPD BIT(31)
 124
 125 enum e1000_boards {
 126         board_82571,
 127         board_82572,
 128         board_82573,
 129         board_82574,
 130         board_82583,
 131         board_80003es2lan,
 132         board_ich8lan,
 133         board_ich9lan,
 134         board_ich10lan,
 135         board_pchlan,
 136         board_pch2lan,
 137         board_pch_lpt,
 138         board_pch_spt
 139 };
 140
 141 struct e1000_ps_page {
 142         struct page *page;
 143         u64 dma; /* must be u64 - written to hw */
 144 };
 145
 146 /* wrappers around a pointer to a socket buffer,
 147  * so a DMA handle can be stored along with the buffer
 148  */
 149 struct e1000_buffer {
 150         dma_addr_t dma;
 151         struct sk_buff *skb;
 152         union {
 153                 /* Tx */
 154                 struct {
 155                         unsigned long time_stamp;
 156                         u16 length;
 157                         u16 next_to_watch;
 158                         unsigned int segs;
 159                         unsigned int bytecount;
 160                         u16 mapped_as_page;
 161                 };
 162                 /* Rx */
 163                 struct {
 164                         /* arrays of page information for packet split */
 165                         struct e1000_ps_page *ps_pages;
 166                         struct page *page;
 167                 };
 168         };
 169 };
 170
 171 struct e1000_ring {
 172         struct e1000_adapter *adapter;  /* back pointer to adapter */
 173         void *desc;                     /* pointer to ring memory  */
 174         dma_addr_t dma;                 /* phys address of ring    */
 175         unsigned int size;              /* length of ring in bytes */
 176         unsigned int count;             /* number of desc. in ring */
 177
 178         u16 next_to_use;
 179         u16 next_to_clean;
 180
 181         void __iomem *head;
 182         void __iomem *tail;
 183
 184         /* array of buffer information structs */
 185         struct e1000_buffer *buffer_info;
 186
 187         char name[IFNAMSIZ + 5];
 188         u32 ims_val;
 189         u32 itr_val;
 190         void __iomem *itr_register;
 191         int set_itr;
 192
 193         struct sk_buff *rx_skb_top;
 194 };
 195
 196 /* PHY register snapshot values */
 197 struct e1000_phy_regs {
 198         u16 bmcr;               /* basic mode control register    */
 199         u16 bmsr;               /* basic mode status register     */
 200         u16 advertise;          /* auto-negotiation advertisement */
 201         u16 lpa;                /* link partner ability register  */
 202         u16 expansion;          /* auto-negotiation expansion reg */
 203         u16 ctrl1000;           /* 1000BASE-T control register    */
 204         u16 stat1000;           /* 1000BASE-T status register     */
 205         u16 estatus;            /* extended status register       */
 206 };
 207
 208 /* board specific private data structure */
 209 struct e1000_adapter {
 210         struct timer_list watchdog_timer;
 211         struct timer_list phy_info_timer;
 212         struct timer_list blink_timer;
 213
 214         struct work_struct reset_task;
 215         struct work_struct watchdog_task;
 216
 217         const struct e1000_info *ei;
 218
 219         unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
 220         u32 bd_number;
 221         u32 rx_buffer_len;
 222         u16 mng_vlan_id;
 223         u16 link_speed;
 224         u16 link_duplex;
 225         u16 eeprom_vers;
 226
 227         /* track device up/down/testing state */
 228         unsigned long state;
 229
 230         /* Interrupt Throttle Rate */
 231         u32 itr;
 232         u32 itr_setting;
 233         u16 tx_itr;
 234         u16 rx_itr;
 235
 236         /* Tx - one ring per active queue */
 237         struct e1000_ring *tx_ring ____cacheline_aligned_in_smp;
 238         u32 tx_fifo_limit;
 239
 240         struct napi_struct napi;
 241
 242         unsigned int uncorr_errors;     /* uncorrectable ECC errors */
 243         unsigned int corr_errors;       /* correctable ECC errors */
 244         unsigned int restart_queue;
 245         u32 txd_cmd;
 246
 247         bool detect_tx_hung;
 248         bool tx_hang_recheck;
 249         u8 tx_timeout_factor;
 250
 251         u32 tx_int_delay;
 252         u32 tx_abs_int_delay;
 253
 254         unsigned int total_tx_bytes;
 255         unsigned int total_tx_packets;
 256         unsigned int total_rx_bytes;
 257         unsigned int total_rx_packets;
 258
 259         /* Tx stats */
 260         u64 tpt_old;
 261         u64 colc_old;
 262         u32 gotc;
 263         u64 gotc_old;
 264         u32 tx_timeout_count;
 265         u32 tx_fifo_head;
 266         u32 tx_head_addr;
 267         u32 tx_fifo_size;
 268         u32 tx_dma_failed;
 269         u32 tx_hwtstamp_timeouts;
 270
 271         /* Rx */
 272         bool (*clean_rx)(struct e1000_ring *ring, int *work_done,
 273                          int work_to_do) ____cacheline_aligned_in_smp;
 274         void (*alloc_rx_buf)(struct e1000_ring *ring, int cleaned_count,
 275                              gfp_t gfp);
 276         struct e1000_ring *rx_ring;
 277
 278         u32 rx_int_delay;
 279         u32 rx_abs_int_delay;
 280
 281         /* Rx stats */
 282         u64 hw_csum_err;
 283         u64 hw_csum_good;
 284         u64 rx_hdr_split;
 285         u32 gorc;
 286         u64 gorc_old;
 287         u32 alloc_rx_buff_failed;
 288         u32 rx_dma_failed;
 289         u32 rx_hwtstamp_cleared;
 290
 291         unsigned int rx_ps_pages;
 292         u16 rx_ps_bsize0;
 293         u32 max_frame_size;
 294         u32 min_frame_size;
 295
 296         /* OS defined structs */
 297         struct net_device *netdev;
 298         struct pci_dev *pdev;
 299
 300         /* structs defined in e1000_hw.h */
 301         struct e1000_hw hw;
 302
 303         spinlock_t stats64_lock;        /* protects statistics counters */
 304         struct e1000_hw_stats stats;
 305         struct e1000_phy_info phy_info;
 306         struct e1000_phy_stats phy_stats;
 307
 308         /* Snapshot of PHY registers */
 309         struct e1000_phy_regs phy_regs;
 310
 311         struct e1000_ring test_tx_ring;
 312         struct e1000_ring test_rx_ring;
 313         u32 test_icr;
 314
 315         u32 msg_enable;
 316         unsigned int num_vectors;
 317         struct msix_entry *msix_entries;
 318         int int_mode;
 319         u32 eiac_mask;
 320
 321         u32 eeprom_wol;
 322         u32 wol;
 323         u32 pba;
 324         u32 max_hw_frame_size;
 325
 326         bool fc_autoneg;
 327
 328         unsigned int flags;
 329         unsigned int flags2;
 330         struct work_struct downshift_task;
 331         struct work_struct update_phy_task;
 332         struct work_struct print_hang_task;
 333
 334         int phy_hang_count;
 335
 336         u16 tx_ring_count;
 337         u16 rx_ring_count;
 338
 339         struct hwtstamp_config hwtstamp_config;
 340         struct delayed_work systim_overflow_work;
 341         struct sk_buff *tx_hwtstamp_skb;
 342         unsigned long tx_hwtstamp_start;
 343         struct work_struct tx_hwtstamp_work;
 344         spinlock_t systim_lock; /* protects SYSTIML/H regsters */
 345         struct cyclecounter cc;
 346         struct timecounter tc;
 347         struct ptp_clock *ptp_clock;
 348         struct ptp_clock_info ptp_clock_info;
 349         struct pm_qos_request pm_qos_req;
 350         s32 ptp_delta;
 351
 352         u16 eee_advert;
 353 };
 354
 355 struct e1000_info {
 356         enum e1000_mac_type     mac;
 357         unsigned int            flags;
 358         unsigned int            flags2;
 359         u32                     pba;
 360         u32                     max_hw_frame_size;
 361         s32                     (*get_variants)(struct e1000_adapter *);
 362         const struct e1000_mac_operations *mac_ops;
 363         const struct e1000_phy_operations *phy_ops;
 364         const struct e1000_nvm_operations *nvm_ops;
 365 };
 366
 367 s32 e1000e_get_base_timinca(struct e1000_adapter *adapter, u32 *timinca);
 368
 369 /* The system time is maintained by a 64-bit counter comprised of the 32-bit
 370  * SYSTIMH and SYSTIML registers.  How the counter increments (and therefore
 371  * its resolution) is based on the contents of the TIMINCA register - it
 372  * increments every incperiod (bits 31:24) clock ticks by incvalue (bits 23:0).
 373  * For the best accuracy, the incperiod should be as small as possible.  The
 374  * incvalue is scaled by a factor as large as possible (while still fitting
 375  * in bits 23:0) so that relatively small clock corrections can be made.
 376  *
 377  * As a result, a shift of INCVALUE_SHIFT_n is used to fit a value of
 378  * INCVALUE_n into the TIMINCA register allowing 32+8+(24-INCVALUE_SHIFT_n)
 379  * bits to count nanoseconds leaving the rest for fractional nonseconds.
 380  */
 381 #define INCVALUE_96MHz          125
 382 #define INCVALUE_SHIFT_96MHz    17
 383 #define INCPERIOD_SHIFT_96MHz   2
 384 #define INCPERIOD_96MHz         (12 >> INCPERIOD_SHIFT_96MHz)
 385
 386 #define INCVALUE_25MHz          40
 387 #define INCVALUE_SHIFT_25MHz    18
 388 #define INCPERIOD_25MHz         1
 389
 390 #define INCVALUE_24MHz          125
 391 #define INCVALUE_SHIFT_24MHz    14
 392 #define INCPERIOD_24MHz         3
 393
 394 /* Another drawback of scaling the incvalue by a large factor is the
 395  * 64-bit SYSTIM register overflows more quickly.  This is dealt with
 396  * by simply reading the clock before it overflows.
 397  *
 398  * Clock        ns bits Overflows after
 399  * ~~~~~~       ~~~~~~~ ~~~~~~~~~~~~~~~
 400  * 96MHz        47-bit  2^(47-INCPERIOD_SHIFT_96MHz) / 10^9 / 3600 = 9.77 hrs
 401  * 25MHz        46-bit  2^46 / 10^9 / 3600 = 19.55 hours
 402  */
 403 #define E1000_SYSTIM_OVERFLOW_PERIOD    (HZ * 60 * 60 * 4)
 404 #define E1000_MAX_82574_SYSTIM_REREADS  50
 405 #define E1000_82574_SYSTIM_EPSILON      (1ULL << 35ULL)
 406
 407 /* hardware capability, feature, and workaround flags */
 408 #define FLAG_HAS_AMT                      BIT(0)
 409 #define FLAG_HAS_FLASH                    BIT(1)
 410 #define FLAG_HAS_HW_VLAN_FILTER           BIT(2)
 411 #define FLAG_HAS_WOL                      BIT(3)
 412 /* reserved BIT(4) */
 413 #define FLAG_HAS_CTRLEXT_ON_LOAD          BIT(5)
 414 #define FLAG_HAS_SWSM_ON_LOAD             BIT(6)
 415 #define FLAG_HAS_JUMBO_FRAMES             BIT(7)
 416 #define FLAG_READ_ONLY_NVM                BIT(8)
 417 #define FLAG_IS_ICH                       BIT(9)
 418 #define FLAG_HAS_MSIX                     BIT(10)
 419 #define FLAG_HAS_SMART_POWER_DOWN         BIT(11)
 420 #define FLAG_IS_QUAD_PORT_A               BIT(12)
 421 #define FLAG_IS_QUAD_PORT                 BIT(13)
 422 #define FLAG_HAS_HW_TIMESTAMP             BIT(14)
 423 #define FLAG_APME_IN_WUC                  BIT(15)
 424 #define FLAG_APME_IN_CTRL3                BIT(16)
 425 #define FLAG_APME_CHECK_PORT_B            BIT(17)
 426 #define FLAG_DISABLE_FC_PAUSE_TIME        BIT(18)
 427 #define FLAG_NO_WAKE_UCAST                BIT(19)
 428 #define FLAG_MNG_PT_ENABLED               BIT(20)
 429 #define FLAG_RESET_OVERWRITES_LAA         BIT(21)
 430 #define FLAG_TARC_SPEED_MODE_BIT          BIT(22)
 431 #define FLAG_TARC_SET_BIT_ZERO            BIT(23)
 432 #define FLAG_RX_NEEDS_RESTART             BIT(24)
 433 #define FLAG_LSC_GIG_SPEED_DROP           BIT(25)
 434 #define FLAG_SMART_POWER_DOWN             BIT(26)
 435 #define FLAG_MSI_ENABLED                  BIT(27)
 436 /* reserved BIT(28) */
 437 #define FLAG_TSO_FORCE                    BIT(29)
 438 #define FLAG_RESTART_NOW                  BIT(30)
 439 #define FLAG_MSI_TEST_FAILED              BIT(31)
 440
 441 #define FLAG2_CRC_STRIPPING               BIT(0)
 442 #define FLAG2_HAS_PHY_WAKEUP              BIT(1)
 443 #define FLAG2_IS_DISCARDING               BIT(2)
 444 #define FLAG2_DISABLE_ASPM_L1             BIT(3)
 445 #define FLAG2_HAS_PHY_STATS               BIT(4)
 446 #define FLAG2_HAS_EEE                     BIT(5)
 447 #define FLAG2_DMA_BURST                   BIT(6)
 448 #define FLAG2_DISABLE_ASPM_L0S            BIT(7)
 449 #define FLAG2_DISABLE_AIM                 BIT(8)
 450 #define FLAG2_CHECK_PHY_HANG              BIT(9)
 451 #define FLAG2_NO_DISABLE_RX               BIT(10)
 452 #define FLAG2_PCIM2PCI_ARBITER_WA         BIT(11)
 453 #define FLAG2_DFLT_CRC_STRIPPING          BIT(12)
 454 #define FLAG2_CHECK_RX_HWTSTAMP           BIT(13)
 455
 456 #define E1000_RX_DESC_PS(R, i)      \
 457         (&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))
 458 #define E1000_RX_DESC_EXT(R, i)     \
 459         (&(((union e1000_rx_desc_extended *)((R).desc))[i]))
 460 #define E1000_GET_DESC(R, i, type)      (&(((struct type *)((R).desc))[i]))
 461 #define E1000_TX_DESC(R, i)             E1000_GET_DESC(R, i, e1000_tx_desc)
 462 #define E1000_CONTEXT_DESC(R, i)        E1000_GET_DESC(R, i, e1000_context_desc)
 463
 464 enum e1000_state_t {
 465         __E1000_TESTING,
 466         __E1000_RESETTING,
 467         __E1000_ACCESS_SHARED_RESOURCE,
 468         __E1000_DOWN
 469 };
 470
 471 enum latency_range {
 472         lowest_latency = 0,
 473         low_latency = 1,
 474         bulk_latency = 2,
 475         latency_invalid = 255
 476 };
 477
 478 extern char e1000e_driver_name[];
 479 extern const char e1000e_driver_version[];
 480
 481 void e1000e_check_options(struct e1000_adapter *adapter);
 482 void e1000e_set_ethtool_ops(struct net_device *netdev);
 483
 484 int e1000e_open(struct net_device *netdev);
 485 int e1000e_close(struct net_device *netdev);
 486 void e1000e_up(struct e1000_adapter *adapter);
 487 void e1000e_down(struct e1000_adapter *adapter, bool reset);
 488 void e1000e_reinit_locked(struct e1000_adapter *adapter);
 489 void e1000e_reset(struct e1000_adapter *adapter);
 490 void e1000e_power_up_phy(struct e1000_adapter *adapter);
 491 int e1000e_setup_rx_resources(struct e1000_ring *ring);
 492 int e1000e_setup_tx_resources(struct e1000_ring *ring);
 493 void e1000e_free_rx_resources(struct e1000_ring *ring);
 494 void e1000e_free_tx_resources(struct e1000_ring *ring);
 495 struct rtnl_link_stats64 *e1000e_get_stats64(struct net_device *netdev,
 496                                              struct rtnl_link_stats64 *stats);
 497 void e1000e_set_interrupt_capability(struct e1000_adapter *adapter);
 498 void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter);
 499 void e1000e_get_hw_control(struct e1000_adapter *adapter);
 500 void e1000e_release_hw_control(struct e1000_adapter *adapter);
 501 void e1000e_write_itr(struct e1000_adapter *adapter, u32 itr);
 502
 503 extern unsigned int copybreak;
 504
 505 extern const struct e1000_info e1000_82571_info;
 506 extern const struct e1000_info e1000_82572_info;
 507 extern const struct e1000_info e1000_82573_info;
 508 extern const struct e1000_info e1000_82574_info;
 509 extern const struct e1000_info e1000_82583_info;
 510 extern const struct e1000_info e1000_ich8_info;
 511 extern const struct e1000_info e1000_ich9_info;
 512 extern const struct e1000_info e1000_ich10_info;
 513 extern const struct e1000_info e1000_pch_info;
 514 extern const struct e1000_info e1000_pch2_info;
 515 extern const struct e1000_info e1000_pch_lpt_info;
 516 extern const struct e1000_info e1000_pch_spt_info;
 517 extern const struct e1000_info e1000_es2_info;
 518
 519 void e1000e_ptp_init(struct e1000_adapter *adapter);
 520 void e1000e_ptp_remove(struct e1000_adapter *adapter);
 521
 522 static inline s32 e1000_phy_hw_reset(struct e1000_hw *hw)
 523 {
 524         return hw->phy.ops.reset(hw);
 525 }
 526
 527 static inline s32 e1e_rphy(struct e1000_hw *hw, u32 offset, u16 *data)
 528 {
 529         return hw->phy.ops.read_reg(hw, offset, data);
 530 }
 531
 532 static inline s32 e1e_rphy_locked(struct e1000_hw *hw, u32 offset, u16 *data)
 533 {
 534         return hw->phy.ops.read_reg_locked(hw, offset, data);
 535 }
 536
 537 static inline s32 e1e_wphy(struct e1000_hw *hw, u32 offset, u16 data)
 538 {
 539         return hw->phy.ops.write_reg(hw, offset, data);
 540 }
 541
 542 static inline s32 e1e_wphy_locked(struct e1000_hw *hw, u32 offset, u16 data)
 543 {
 544         return hw->phy.ops.write_reg_locked(hw, offset, data);
 545 }
 546
 547 void e1000e_reload_nvm_generic(struct e1000_hw *hw);
 548
 549 static inline s32 e1000e_read_mac_addr(struct e1000_hw *hw)
 550 {
 551         if (hw->mac.ops.read_mac_addr)
 552                 return hw->mac.ops.read_mac_addr(hw);
 553
 554         return e1000_read_mac_addr_generic(hw);
 555 }
 556
 557 static inline s32 e1000_validate_nvm_checksum(struct e1000_hw *hw)
 558 {
 559         return hw->nvm.ops.validate(hw);
 560 }
 561
 562 static inline s32 e1000e_update_nvm_checksum(struct e1000_hw *hw)
 563 {
 564         return hw->nvm.ops.update(hw);
 565 }
 566
 567 static inline s32 e1000_read_nvm(struct e1000_hw *hw, u16 offset, u16 words,
 568                                  u16 *data)
 569 {
 570         return hw->nvm.ops.read(hw, offset, words, data);
 571 }
 572
 573 static inline s32 e1000_write_nvm(struct e1000_hw *hw, u16 offset, u16 words,
 574                                   u16 *data)
 575 {
 576         return hw->nvm.ops.write(hw, offset, words, data);
 577 }
 578
 579 static inline s32 e1000_get_phy_info(struct e1000_hw *hw)
 580 {
 581         return hw->phy.ops.get_info(hw);
 582 }
 583
 584 static inline u32 __er32(struct e1000_hw *hw, unsigned long reg)
 585 {
 586         return readl(hw->hw_addr + reg);
 587 }
 588
 589 #define er32(reg)       __er32(hw, E1000_##reg)
 590
 591 s32 __ew32_prepare(struct e1000_hw *hw);
 592 void __ew32(struct e1000_hw *hw, unsigned long reg, u32 val);
 593
 594 #define ew32(reg, val)  __ew32(hw, E1000_##reg, (val))
 595
 596 #define e1e_flush()     er32(STATUS)
 597
 598 #define E1000_WRITE_REG_ARRAY(a, reg, offset, value) \
 599         (__ew32((a), (reg + ((offset) << 2)), (value)))
 600
 601 #define E1000_READ_REG_ARRAY(a, reg, offset) \
 602         (readl((a)->hw_addr + reg + ((offset) << 2)))
 603
 604 #endif /* _E1000_H_ */