drivers/net/e1000e/e1000.h

   1 /*******************************************************************************
   2
   3   Intel PRO/1000 Linux driver
   4   Copyright(c) 1999 - 2007 Intel Corporation.
   5
   6   This program is free software; you can redistribute it and/or modify it
   7   under the terms and conditions of the GNU General Public License,
   8   version 2, as published by the Free Software Foundation.
   9
  10   This program is distributed in the hope it will be useful, but WITHOUT
  11   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13   more details.
  14
  15   You should have received a copy of the GNU General Public License along with
  16   this program; if not, write to the Free Software Foundation, Inc.,
  17   51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  18
  19   The full GNU General Public License is included in this distribution in
  20   the file called "COPYING".
  21
  22   Contact Information:
  23   Linux NICS <linux.nics@intel.com>
  24   e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  25   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  26
  27 *******************************************************************************/
  28
  29 /* Linux PRO/1000 Ethernet Driver main header file */
  30
  31 #ifndef _E1000_H_
  32 #define _E1000_H_
  33
  34 #include <linux/types.h>
  35 #include <linux/timer.h>
  36 #include <linux/workqueue.h>
  37 #include <linux/io.h>
  38 #include <linux/netdevice.h>
  39
  40 #include "hw.h"
  41
  42 struct e1000_info;
  43
  44 #define ndev_printk(level, netdev, format, arg...) \
  45         printk(level "%s: %s: " format, (netdev)->dev.parent->bus_id, \
  46                (netdev)->name, ## arg)
  47
  48 #ifdef DEBUG
  49 #define ndev_dbg(netdev, format, arg...) \
  50         ndev_printk(KERN_DEBUG , netdev, format, ## arg)
  51 #else
  52 #define ndev_dbg(netdev, format, arg...) do { (void)(netdev); } while (0)
  53 #endif
  54
  55 #define ndev_err(netdev, format, arg...) \
  56         ndev_printk(KERN_ERR , netdev, format, ## arg)
  57 #define ndev_info(netdev, format, arg...) \
  58         ndev_printk(KERN_INFO , netdev, format, ## arg)
  59 #define ndev_warn(netdev, format, arg...) \
  60         ndev_printk(KERN_WARNING , netdev, format, ## arg)
  61 #define ndev_notice(netdev, format, arg...) \
  62         ndev_printk(KERN_NOTICE , netdev, format, ## arg)
  63
  64
  65 /* TX/RX descriptor defines */
  66 #define E1000_DEFAULT_TXD               256
  67 #define E1000_MAX_TXD                   4096
  68 #define E1000_MIN_TXD                   80
  69
  70 #define E1000_DEFAULT_RXD               256
  71 #define E1000_MAX_RXD                   4096
  72 #define E1000_MIN_RXD                   80
  73
  74 /* Early Receive defines */
  75 #define E1000_ERT_2048                  0x100
  76
  77 #define E1000_FC_PAUSE_TIME             0x0680 /* 858 usec */
  78
  79 /* How many Tx Descriptors do we need to call netif_wake_queue ? */
  80 /* How many Rx Buffers do we bundle into one write to the hardware ? */
  81 #define E1000_RX_BUFFER_WRITE           16 /* Must be power of 2 */
  82
  83 #define AUTO_ALL_MODES                  0
  84 #define E1000_EEPROM_APME               0x0400
  85
  86 #define E1000_MNG_VLAN_NONE             (-1)
  87
  88 /* Number of packet split data buffers (not including the header buffer) */
  89 #define PS_PAGE_BUFFERS                 (MAX_PS_BUFFERS - 1)
  90
  91 enum e1000_boards {
  92         board_82571,
  93         board_82572,
  94         board_82573,
  95         board_80003es2lan,
  96         board_ich8lan,
  97         board_ich9lan,
  98 };
  99
 100 struct e1000_queue_stats {
 101         u64 packets;
 102         u64 bytes;
 103 };
 104
 105 struct e1000_ps_page {
 106         struct page *page;
 107         u64 dma; /* must be u64 - written to hw */
 108 };
 109
 110 /*
 111  * wrappers around a pointer to a socket buffer,
 112  * so a DMA handle can be stored along with the buffer
 113  */
 114 struct e1000_buffer {
 115         dma_addr_t dma;
 116         struct sk_buff *skb;
 117         union {
 118                 /* TX */
 119                 struct {
 120                         unsigned long time_stamp;
 121                         u16 length;
 122                         u16 next_to_watch;
 123                 };
 124                 /* RX */
 125                 /* arrays of page information for packet split */
 126                 struct e1000_ps_page *ps_pages;
 127         };
 128
 129 };
 130
 131 struct e1000_ring {
 132         void *desc;                     /* pointer to ring memory  */
 133         dma_addr_t dma;                 /* phys address of ring    */
 134         unsigned int size;              /* length of ring in bytes */
 135         unsigned int count;             /* number of desc. in ring */
 136
 137         u16 next_to_use;
 138         u16 next_to_clean;
 139
 140         u16 head;
 141         u16 tail;
 142
 143         /* array of buffer information structs */
 144         struct e1000_buffer *buffer_info;
 145
 146         struct sk_buff *rx_skb_top;
 147
 148         struct e1000_queue_stats stats;
 149 };
 150
 151 /* board specific private data structure */
 152 struct e1000_adapter {
 153         struct timer_list watchdog_timer;
 154         struct timer_list phy_info_timer;
 155         struct timer_list blink_timer;
 156
 157         struct work_struct reset_task;
 158         struct work_struct watchdog_task;
 159
 160         const struct e1000_info *ei;
 161
 162         struct vlan_group *vlgrp;
 163         u32 bd_number;
 164         u32 rx_buffer_len;
 165         u16 mng_vlan_id;
 166         u16 link_speed;
 167         u16 link_duplex;
 168
 169         spinlock_t tx_queue_lock; /* prevent concurrent tail updates */
 170
 171         /* this is still needed for 82571 and above */
 172         atomic_t irq_sem;
 173
 174         /* track device up/down/testing state */
 175         unsigned long state;
 176
 177         /* Interrupt Throttle Rate */
 178         u32 itr;
 179         u32 itr_setting;
 180         u16 tx_itr;
 181         u16 rx_itr;
 182
 183         /*
 184          * TX
 185          */
 186         struct e1000_ring *tx_ring /* One per active queue */
 187                                                 ____cacheline_aligned_in_smp;
 188
 189         struct napi_struct napi;
 190
 191         unsigned long tx_queue_len;
 192         unsigned int restart_queue;
 193         u32 txd_cmd;
 194
 195         bool detect_tx_hung;
 196         u8 tx_timeout_factor;
 197
 198         u32 tx_int_delay;
 199         u32 tx_abs_int_delay;
 200
 201         unsigned int total_tx_bytes;
 202         unsigned int total_tx_packets;
 203         unsigned int total_rx_bytes;
 204         unsigned int total_rx_packets;
 205
 206         /* TX stats */
 207         u64 tpt_old;
 208         u64 colc_old;
 209         u64 gotcl_old;
 210         u32 gotcl;
 211         u32 tx_timeout_count;
 212         u32 tx_fifo_head;
 213         u32 tx_head_addr;
 214         u32 tx_fifo_size;
 215         u32 tx_dma_failed;
 216
 217         /*
 218          * RX
 219          */
 220         bool (*clean_rx) (struct e1000_adapter *adapter,
 221                           int *work_done, int work_to_do)
 222                                                 ____cacheline_aligned_in_smp;
 223         void (*alloc_rx_buf) (struct e1000_adapter *adapter,
 224                               int cleaned_count);
 225         struct e1000_ring *rx_ring;
 226
 227         u32 rx_int_delay;
 228         u32 rx_abs_int_delay;
 229
 230         /* RX stats */
 231         u64 hw_csum_err;
 232         u64 hw_csum_good;
 233         u64 rx_hdr_split;
 234         u64 gorcl_old;
 235         u32 gorcl;
 236         u32 alloc_rx_buff_failed;
 237         u32 rx_dma_failed;
 238
 239         unsigned int rx_ps_pages;
 240         u16 rx_ps_bsize0;
 241
 242         /* OS defined structs */
 243         struct net_device *netdev;
 244         struct pci_dev *pdev;
 245         struct net_device_stats net_stats;
 246         spinlock_t stats_lock;      /* prevent concurrent stats updates */
 247
 248         /* structs defined in e1000_hw.h */
 249         struct e1000_hw hw;
 250
 251         struct e1000_hw_stats stats;
 252         struct e1000_phy_info phy_info;
 253         struct e1000_phy_stats phy_stats;
 254
 255         struct e1000_ring test_tx_ring;
 256         struct e1000_ring test_rx_ring;
 257         u32 test_icr;
 258
 259         u32 msg_enable;
 260
 261         u32 eeprom_wol;
 262         u32 wol;
 263         u32 pba;
 264
 265         u8 fc_autoneg;
 266
 267         unsigned long led_status;
 268
 269         unsigned int flags;
 270 };
 271
 272 struct e1000_info {
 273         enum e1000_mac_type     mac;
 274         unsigned int            flags;
 275         u32                     pba;
 276         s32                     (*get_invariants)(struct e1000_adapter *);
 277         struct e1000_mac_operations *mac_ops;
 278         struct e1000_phy_operations *phy_ops;
 279         struct e1000_nvm_operations *nvm_ops;
 280 };
 281
 282 /* hardware capability, feature, and workaround flags */
 283 #define FLAG_HAS_AMT                      (1 << 0)
 284 #define FLAG_HAS_FLASH                    (1 << 1)
 285 #define FLAG_HAS_HW_VLAN_FILTER           (1 << 2)
 286 #define FLAG_HAS_WOL                      (1 << 3)
 287 #define FLAG_HAS_ERT                      (1 << 4)
 288 #define FLAG_HAS_CTRLEXT_ON_LOAD          (1 << 5)
 289 #define FLAG_HAS_SWSM_ON_LOAD             (1 << 6)
 290 #define FLAG_HAS_JUMBO_FRAMES             (1 << 7)
 291 #define FLAG_HAS_STATS_ICR_ICT            (1 << 9)
 292 #define FLAG_HAS_STATS_PTC_PRC            (1 << 10)
 293 #define FLAG_HAS_SMART_POWER_DOWN         (1 << 11)
 294 #define FLAG_IS_QUAD_PORT_A               (1 << 12)
 295 #define FLAG_IS_QUAD_PORT                 (1 << 13)
 296 #define FLAG_TIPG_MEDIUM_FOR_80003ESLAN   (1 << 14)
 297 #define FLAG_APME_IN_WUC                  (1 << 15)
 298 #define FLAG_APME_IN_CTRL3                (1 << 16)
 299 #define FLAG_APME_CHECK_PORT_B            (1 << 17)
 300 #define FLAG_DISABLE_FC_PAUSE_TIME        (1 << 18)
 301 #define FLAG_NO_WAKE_UCAST                (1 << 19)
 302 #define FLAG_MNG_PT_ENABLED               (1 << 20)
 303 #define FLAG_RESET_OVERWRITES_LAA         (1 << 21)
 304 #define FLAG_TARC_SPEED_MODE_BIT          (1 << 22)
 305 #define FLAG_TARC_SET_BIT_ZERO            (1 << 23)
 306 #define FLAG_RX_NEEDS_RESTART             (1 << 24)
 307 #define FLAG_LSC_GIG_SPEED_DROP           (1 << 25)
 308 #define FLAG_SMART_POWER_DOWN             (1 << 26)
 309 #define FLAG_MSI_ENABLED                  (1 << 27)
 310 #define FLAG_RX_CSUM_ENABLED              (1 << 28)
 311 #define FLAG_TSO_FORCE                    (1 << 29)
 312
 313 #define E1000_RX_DESC_PS(R, i)      \
 314         (&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))
 315 #define E1000_GET_DESC(R, i, type)      (&(((struct type *)((R).desc))[i]))
 316 #define E1000_RX_DESC(R, i)             E1000_GET_DESC(R, i, e1000_rx_desc)
 317 #define E1000_TX_DESC(R, i)             E1000_GET_DESC(R, i, e1000_tx_desc)
 318 #define E1000_CONTEXT_DESC(R, i)        E1000_GET_DESC(R, i, e1000_context_desc)
 319
 320 enum e1000_state_t {
 321         __E1000_TESTING,
 322         __E1000_RESETTING,
 323         __E1000_DOWN
 324 };
 325
 326 enum latency_range {
 327         lowest_latency = 0,
 328         low_latency = 1,
 329         bulk_latency = 2,
 330         latency_invalid = 255
 331 };
 332
 333 extern char e1000e_driver_name[];
 334 extern const char e1000e_driver_version[];
 335
 336 extern void e1000e_check_options(struct e1000_adapter *adapter);
 337 extern void e1000e_set_ethtool_ops(struct net_device *netdev);
 338
 339 extern int e1000e_up(struct e1000_adapter *adapter);
 340 extern void e1000e_down(struct e1000_adapter *adapter);
 341 extern void e1000e_reinit_locked(struct e1000_adapter *adapter);
 342 extern void e1000e_reset(struct e1000_adapter *adapter);
 343 extern void e1000e_power_up_phy(struct e1000_adapter *adapter);
 344 extern int e1000e_setup_rx_resources(struct e1000_adapter *adapter);
 345 extern int e1000e_setup_tx_resources(struct e1000_adapter *adapter);
 346 extern void e1000e_free_rx_resources(struct e1000_adapter *adapter);
 347 extern void e1000e_free_tx_resources(struct e1000_adapter *adapter);
 348 extern void e1000e_update_stats(struct e1000_adapter *adapter);
 349
 350 extern unsigned int copybreak;
 351
 352 extern char *e1000e_get_hw_dev_name(struct e1000_hw *hw);
 353
 354 extern struct e1000_info e1000_82571_info;
 355 extern struct e1000_info e1000_82572_info;
 356 extern struct e1000_info e1000_82573_info;
 357 extern struct e1000_info e1000_ich8_info;
 358 extern struct e1000_info e1000_ich9_info;
 359 extern struct e1000_info e1000_es2_info;
 360
 361 extern s32 e1000e_read_part_num(struct e1000_hw *hw, u32 *part_num);
 362
 363 extern s32  e1000e_commit_phy(struct e1000_hw *hw);
 364
 365 extern bool e1000e_enable_mng_pass_thru(struct e1000_hw *hw);
 366
 367 extern bool e1000e_get_laa_state_82571(struct e1000_hw *hw);
 368 extern void e1000e_set_laa_state_82571(struct e1000_hw *hw, bool state);
 369
 370 extern void e1000e_set_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw,
 371                                                  bool state);
 372 extern void e1000e_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw);
 373 extern void e1000e_gig_downshift_workaround_ich8lan(struct e1000_hw *hw);
 374
 375 extern s32 e1000e_check_for_copper_link(struct e1000_hw *hw);
 376 extern s32 e1000e_check_for_fiber_link(struct e1000_hw *hw);
 377 extern s32 e1000e_check_for_serdes_link(struct e1000_hw *hw);
 378 extern s32 e1000e_cleanup_led_generic(struct e1000_hw *hw);
 379 extern s32 e1000e_led_on_generic(struct e1000_hw *hw);
 380 extern s32 e1000e_led_off_generic(struct e1000_hw *hw);
 381 extern s32 e1000e_get_bus_info_pcie(struct e1000_hw *hw);
 382 extern s32 e1000e_get_speed_and_duplex_copper(struct e1000_hw *hw, u16 *speed, u16 *duplex);
 383 extern s32 e1000e_get_speed_and_duplex_fiber_serdes(struct e1000_hw *hw, u16 *speed, u16 *duplex);
 384 extern s32 e1000e_disable_pcie_master(struct e1000_hw *hw);
 385 extern s32 e1000e_get_auto_rd_done(struct e1000_hw *hw);
 386 extern s32 e1000e_id_led_init(struct e1000_hw *hw);
 387 extern void e1000e_clear_hw_cntrs_base(struct e1000_hw *hw);
 388 extern s32 e1000e_setup_fiber_serdes_link(struct e1000_hw *hw);
 389 extern s32 e1000e_copper_link_setup_m88(struct e1000_hw *hw);
 390 extern s32 e1000e_copper_link_setup_igp(struct e1000_hw *hw);
 391 extern s32 e1000e_setup_link(struct e1000_hw *hw);
 392 extern void e1000e_clear_vfta(struct e1000_hw *hw);
 393 extern void e1000e_init_rx_addrs(struct e1000_hw *hw, u16 rar_count);
 394 extern void e1000e_mc_addr_list_update_generic(struct e1000_hw *hw,
 395                                        u8 *mc_addr_list, u32 mc_addr_count,
 396                                        u32 rar_used_count, u32 rar_count);
 397 extern void e1000e_rar_set(struct e1000_hw *hw, u8 *addr, u32 index);
 398 extern s32 e1000e_set_fc_watermarks(struct e1000_hw *hw);
 399 extern void e1000e_set_pcie_no_snoop(struct e1000_hw *hw, u32 no_snoop);
 400 extern s32 e1000e_get_hw_semaphore(struct e1000_hw *hw);
 401 extern s32 e1000e_valid_led_default(struct e1000_hw *hw, u16 *data);
 402 extern void e1000e_config_collision_dist(struct e1000_hw *hw);
 403 extern s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw);
 404 extern s32 e1000e_force_mac_fc(struct e1000_hw *hw);
 405 extern s32 e1000e_blink_led(struct e1000_hw *hw);
 406 extern void e1000e_write_vfta(struct e1000_hw *hw, u32 offset, u32 value);
 407 extern void e1000e_reset_adaptive(struct e1000_hw *hw);
 408 extern void e1000e_update_adaptive(struct e1000_hw *hw);
 409
 410 extern s32 e1000e_setup_copper_link(struct e1000_hw *hw);
 411 extern s32 e1000e_get_phy_id(struct e1000_hw *hw);
 412 extern void e1000e_put_hw_semaphore(struct e1000_hw *hw);
 413 extern s32 e1000e_check_reset_block_generic(struct e1000_hw *hw);
 414 extern s32 e1000e_phy_force_speed_duplex_igp(struct e1000_hw *hw);
 415 extern s32 e1000e_get_cable_length_igp_2(struct e1000_hw *hw);
 416 extern s32 e1000e_get_phy_info_igp(struct e1000_hw *hw);
 417 extern s32 e1000e_read_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 *data);
 418 extern s32 e1000e_phy_hw_reset_generic(struct e1000_hw *hw);
 419 extern s32 e1000e_set_d3_lplu_state(struct e1000_hw *hw, bool active);
 420 extern s32 e1000e_write_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 data);
 421 extern s32 e1000e_phy_sw_reset(struct e1000_hw *hw);
 422 extern s32 e1000e_phy_force_speed_duplex_m88(struct e1000_hw *hw);
 423 extern s32 e1000e_get_cfg_done(struct e1000_hw *hw);
 424 extern s32 e1000e_get_cable_length_m88(struct e1000_hw *hw);
 425 extern s32 e1000e_get_phy_info_m88(struct e1000_hw *hw);
 426 extern s32 e1000e_read_phy_reg_m88(struct e1000_hw *hw, u32 offset, u16 *data);
 427 extern s32 e1000e_write_phy_reg_m88(struct e1000_hw *hw, u32 offset, u16 data);
 428 extern enum e1000_phy_type e1000e_get_phy_type_from_id(u32 phy_id);
 429 extern void e1000e_phy_force_speed_duplex_setup(struct e1000_hw *hw, u16 *phy_ctrl);
 430 extern s32 e1000e_write_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 data);
 431 extern s32 e1000e_read_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 *data);
 432 extern s32 e1000e_phy_has_link_generic(struct e1000_hw *hw, u32 iterations,
 433                                u32 usec_interval, bool *success);
 434 extern s32 e1000e_phy_reset_dsp(struct e1000_hw *hw);
 435 extern s32 e1000e_check_downshift(struct e1000_hw *hw);
 436
 437 static inline s32 e1000_phy_hw_reset(struct e1000_hw *hw)
 438 {
 439         return hw->phy.ops.reset_phy(hw);
 440 }
 441
 442 static inline s32 e1000_check_reset_block(struct e1000_hw *hw)
 443 {
 444         return hw->phy.ops.check_reset_block(hw);
 445 }
 446
 447 static inline s32 e1e_rphy(struct e1000_hw *hw, u32 offset, u16 *data)
 448 {
 449         return hw->phy.ops.read_phy_reg(hw, offset, data);
 450 }
 451
 452 static inline s32 e1e_wphy(struct e1000_hw *hw, u32 offset, u16 data)
 453 {
 454         return hw->phy.ops.write_phy_reg(hw, offset, data);
 455 }
 456
 457 static inline s32 e1000_get_cable_length(struct e1000_hw *hw)
 458 {
 459         return hw->phy.ops.get_cable_length(hw);
 460 }
 461
 462 extern s32 e1000e_acquire_nvm(struct e1000_hw *hw);
 463 extern s32 e1000e_write_nvm_spi(struct e1000_hw *hw, u16 offset, u16 words, u16 *data);
 464 extern s32 e1000e_update_nvm_checksum_generic(struct e1000_hw *hw);
 465 extern s32 e1000e_poll_eerd_eewr_done(struct e1000_hw *hw, int ee_reg);
 466 extern s32 e1000e_read_nvm_spi(struct e1000_hw *hw, u16 offset, u16 words, u16 *data);
 467 extern s32 e1000e_read_nvm_eerd(struct e1000_hw *hw, u16 offset, u16 words, u16 *data);
 468 extern s32 e1000e_validate_nvm_checksum_generic(struct e1000_hw *hw);
 469 extern void e1000e_release_nvm(struct e1000_hw *hw);
 470 extern void e1000e_reload_nvm(struct e1000_hw *hw);
 471 extern s32 e1000e_read_mac_addr(struct e1000_hw *hw);
 472
 473 static inline s32 e1000_validate_nvm_checksum(struct e1000_hw *hw)
 474 {
 475         return hw->nvm.ops.validate_nvm(hw);
 476 }
 477
 478 static inline s32 e1000e_update_nvm_checksum(struct e1000_hw *hw)
 479 {
 480         return hw->nvm.ops.update_nvm(hw);
 481 }
 482
 483 static inline s32 e1000_read_nvm(struct e1000_hw *hw, u16 offset, u16 words, u16 *data)
 484 {
 485         return hw->nvm.ops.read_nvm(hw, offset, words, data);
 486 }
 487
 488 static inline s32 e1000_write_nvm(struct e1000_hw *hw, u16 offset, u16 words, u16 *data)
 489 {
 490         return hw->nvm.ops.write_nvm(hw, offset, words, data);
 491 }
 492
 493 static inline s32 e1000_get_phy_info(struct e1000_hw *hw)
 494 {
 495         return hw->phy.ops.get_phy_info(hw);
 496 }
 497
 498 extern bool e1000e_check_mng_mode(struct e1000_hw *hw);
 499 extern bool e1000e_enable_tx_pkt_filtering(struct e1000_hw *hw);
 500 extern s32 e1000e_mng_write_dhcp_info(struct e1000_hw *hw, u8 *buffer, u16 length);
 501
 502 static inline u32 __er32(struct e1000_hw *hw, unsigned long reg)
 503 {
 504         return readl(hw->hw_addr + reg);
 505 }
 506
 507 static inline void __ew32(struct e1000_hw *hw, unsigned long reg, u32 val)
 508 {
 509         writel(val, hw->hw_addr + reg);
 510 }
 511
 512 #endif /* _E1000_H_ */