drivers/net/igb/e1000_hw.h

   1 /*******************************************************************************
   2
   3   Intel(R) Gigabit Ethernet Linux driver
   4   Copyright(c) 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   e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  24   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  25
  26 *******************************************************************************/
  27
  28 #ifndef _E1000_HW_H_
  29 #define _E1000_HW_H_
  30
  31 #include <linux/types.h>
  32 #include <linux/delay.h>
  33 #include <linux/io.h>
  34
  35 #include "e1000_mac.h"
  36 #include "e1000_regs.h"
  37 #include "e1000_defines.h"
  38
  39 struct e1000_hw;
  40
  41 #define E1000_DEV_ID_82576                    0x10C9
  42 #define E1000_DEV_ID_82576_FIBER              0x10E6
  43 #define E1000_DEV_ID_82576_SERDES             0x10E7
  44 #define E1000_DEV_ID_82575EB_COPPER           0x10A7
  45 #define E1000_DEV_ID_82575EB_FIBER_SERDES     0x10A9
  46 #define E1000_DEV_ID_82575GB_QUAD_COPPER      0x10D6
  47
  48 #define E1000_REVISION_2 2
  49 #define E1000_REVISION_4 4
  50
  51 #define E1000_FUNC_1     1
  52
  53 enum e1000_mac_type {
  54         e1000_undefined = 0,
  55         e1000_82575,
  56         e1000_82576,
  57         e1000_num_macs  /* List is 1-based, so subtract 1 for true count. */
  58 };
  59
  60 enum e1000_media_type {
  61         e1000_media_type_unknown = 0,
  62         e1000_media_type_copper = 1,
  63         e1000_media_type_fiber = 2,
  64         e1000_media_type_internal_serdes = 3,
  65         e1000_num_media_types
  66 };
  67
  68 enum e1000_nvm_type {
  69         e1000_nvm_unknown = 0,
  70         e1000_nvm_none,
  71         e1000_nvm_eeprom_spi,
  72         e1000_nvm_eeprom_microwire,
  73         e1000_nvm_flash_hw,
  74         e1000_nvm_flash_sw
  75 };
  76
  77 enum e1000_nvm_override {
  78         e1000_nvm_override_none = 0,
  79         e1000_nvm_override_spi_small,
  80         e1000_nvm_override_spi_large,
  81         e1000_nvm_override_microwire_small,
  82         e1000_nvm_override_microwire_large
  83 };
  84
  85 enum e1000_phy_type {
  86         e1000_phy_unknown = 0,
  87         e1000_phy_none,
  88         e1000_phy_m88,
  89         e1000_phy_igp,
  90         e1000_phy_igp_2,
  91         e1000_phy_gg82563,
  92         e1000_phy_igp_3,
  93         e1000_phy_ife,
  94 };
  95
  96 enum e1000_bus_type {
  97         e1000_bus_type_unknown = 0,
  98         e1000_bus_type_pci,
  99         e1000_bus_type_pcix,
 100         e1000_bus_type_pci_express,
 101         e1000_bus_type_reserved
 102 };
 103
 104 enum e1000_bus_speed {
 105         e1000_bus_speed_unknown = 0,
 106         e1000_bus_speed_33,
 107         e1000_bus_speed_66,
 108         e1000_bus_speed_100,
 109         e1000_bus_speed_120,
 110         e1000_bus_speed_133,
 111         e1000_bus_speed_2500,
 112         e1000_bus_speed_5000,
 113         e1000_bus_speed_reserved
 114 };
 115
 116 enum e1000_bus_width {
 117         e1000_bus_width_unknown = 0,
 118         e1000_bus_width_pcie_x1,
 119         e1000_bus_width_pcie_x2,
 120         e1000_bus_width_pcie_x4 = 4,
 121         e1000_bus_width_pcie_x8 = 8,
 122         e1000_bus_width_32,
 123         e1000_bus_width_64,
 124         e1000_bus_width_reserved
 125 };
 126
 127 enum e1000_1000t_rx_status {
 128         e1000_1000t_rx_status_not_ok = 0,
 129         e1000_1000t_rx_status_ok,
 130         e1000_1000t_rx_status_undefined = 0xFF
 131 };
 132
 133 enum e1000_rev_polarity {
 134         e1000_rev_polarity_normal = 0,
 135         e1000_rev_polarity_reversed,
 136         e1000_rev_polarity_undefined = 0xFF
 137 };
 138
 139 enum e1000_fc_type {
 140         e1000_fc_none = 0,
 141         e1000_fc_rx_pause,
 142         e1000_fc_tx_pause,
 143         e1000_fc_full,
 144         e1000_fc_default = 0xFF
 145 };
 146
 147
 148 /* Receive Descriptor */
 149 struct e1000_rx_desc {
 150         __le64 buffer_addr; /* Address of the descriptor's data buffer */
 151         __le16 length;      /* Length of data DMAed into data buffer */
 152         __le16 csum;        /* Packet checksum */
 153         u8  status;      /* Descriptor status */
 154         u8  errors;      /* Descriptor Errors */
 155         __le16 special;
 156 };
 157
 158 /* Receive Descriptor - Extended */
 159 union e1000_rx_desc_extended {
 160         struct {
 161                 __le64 buffer_addr;
 162                 __le64 reserved;
 163         } read;
 164         struct {
 165                 struct {
 166                         __le32 mrq;              /* Multiple Rx Queues */
 167                         union {
 168                                 __le32 rss;            /* RSS Hash */
 169                                 struct {
 170                                         __le16 ip_id;  /* IP id */
 171                                         __le16 csum;   /* Packet Checksum */
 172                                 } csum_ip;
 173                         } hi_dword;
 174                 } lower;
 175                 struct {
 176                         __le32 status_error;     /* ext status/error */
 177                         __le16 length;
 178                         __le16 vlan;             /* VLAN tag */
 179                 } upper;
 180         } wb;  /* writeback */
 181 };
 182
 183 #define MAX_PS_BUFFERS 4
 184 /* Receive Descriptor - Packet Split */
 185 union e1000_rx_desc_packet_split {
 186         struct {
 187                 /* one buffer for protocol header(s), three data buffers */
 188                 __le64 buffer_addr[MAX_PS_BUFFERS];
 189         } read;
 190         struct {
 191                 struct {
 192                         __le32 mrq;              /* Multiple Rx Queues */
 193                         union {
 194                                 __le32 rss;              /* RSS Hash */
 195                                 struct {
 196                                         __le16 ip_id;    /* IP id */
 197                                         __le16 csum;     /* Packet Checksum */
 198                                 } csum_ip;
 199                         } hi_dword;
 200                 } lower;
 201                 struct {
 202                         __le32 status_error;     /* ext status/error */
 203                         __le16 length0;          /* length of buffer 0 */
 204                         __le16 vlan;             /* VLAN tag */
 205                 } middle;
 206                 struct {
 207                         __le16 header_status;
 208                         __le16 length[3];        /* length of buffers 1-3 */
 209                 } upper;
 210                 __le64 reserved;
 211         } wb; /* writeback */
 212 };
 213
 214 /* Transmit Descriptor */
 215 struct e1000_tx_desc {
 216         __le64 buffer_addr;      /* Address of the descriptor's data buffer */
 217         union {
 218                 __le32 data;
 219                 struct {
 220                         __le16 length;    /* Data buffer length */
 221                         u8 cso;        /* Checksum offset */
 222                         u8 cmd;        /* Descriptor control */
 223                 } flags;
 224         } lower;
 225         union {
 226                 __le32 data;
 227                 struct {
 228                         u8 status;     /* Descriptor status */
 229                         u8 css;        /* Checksum start */
 230                         __le16 special;
 231                 } fields;
 232         } upper;
 233 };
 234
 235 /* Offload Context Descriptor */
 236 struct e1000_context_desc {
 237         union {
 238                 __le32 ip_config;
 239                 struct {
 240                         u8 ipcss;      /* IP checksum start */
 241                         u8 ipcso;      /* IP checksum offset */
 242                         __le16 ipcse;     /* IP checksum end */
 243                 } ip_fields;
 244         } lower_setup;
 245         union {
 246                 __le32 tcp_config;
 247                 struct {
 248                         u8 tucss;      /* TCP checksum start */
 249                         u8 tucso;      /* TCP checksum offset */
 250                         __le16 tucse;     /* TCP checksum end */
 251                 } tcp_fields;
 252         } upper_setup;
 253         __le32 cmd_and_length;
 254         union {
 255                 __le32 data;
 256                 struct {
 257                         u8 status;     /* Descriptor status */
 258                         u8 hdr_len;    /* Header length */
 259                         __le16 mss;       /* Maximum segment size */
 260                 } fields;
 261         } tcp_seg_setup;
 262 };
 263
 264 /* Offload data descriptor */
 265 struct e1000_data_desc {
 266         __le64 buffer_addr;   /* Address of the descriptor's buffer address */
 267         union {
 268                 __le32 data;
 269                 struct {
 270                         __le16 length;    /* Data buffer length */
 271                         u8 typ_len_ext;
 272                         u8 cmd;
 273                 } flags;
 274         } lower;
 275         union {
 276                 __le32 data;
 277                 struct {
 278                         u8 status;     /* Descriptor status */
 279                         u8 popts;      /* Packet Options */
 280                         __le16 special;
 281                 } fields;
 282         } upper;
 283 };
 284
 285 /* Statistics counters collected by the MAC */
 286 struct e1000_hw_stats {
 287         u64 crcerrs;
 288         u64 algnerrc;
 289         u64 symerrs;
 290         u64 rxerrc;
 291         u64 mpc;
 292         u64 scc;
 293         u64 ecol;
 294         u64 mcc;
 295         u64 latecol;
 296         u64 colc;
 297         u64 dc;
 298         u64 tncrs;
 299         u64 sec;
 300         u64 cexterr;
 301         u64 rlec;
 302         u64 xonrxc;
 303         u64 xontxc;
 304         u64 xoffrxc;
 305         u64 xofftxc;
 306         u64 fcruc;
 307         u64 prc64;
 308         u64 prc127;
 309         u64 prc255;
 310         u64 prc511;
 311         u64 prc1023;
 312         u64 prc1522;
 313         u64 gprc;
 314         u64 bprc;
 315         u64 mprc;
 316         u64 gptc;
 317         u64 gorc;
 318         u64 gotc;
 319         u64 rnbc;
 320         u64 ruc;
 321         u64 rfc;
 322         u64 roc;
 323         u64 rjc;
 324         u64 mgprc;
 325         u64 mgpdc;
 326         u64 mgptc;
 327         u64 tor;
 328         u64 tot;
 329         u64 tpr;
 330         u64 tpt;
 331         u64 ptc64;
 332         u64 ptc127;
 333         u64 ptc255;
 334         u64 ptc511;
 335         u64 ptc1023;
 336         u64 ptc1522;
 337         u64 mptc;
 338         u64 bptc;
 339         u64 tsctc;
 340         u64 tsctfc;
 341         u64 iac;
 342         u64 icrxptc;
 343         u64 icrxatc;
 344         u64 ictxptc;
 345         u64 ictxatc;
 346         u64 ictxqec;
 347         u64 ictxqmtc;
 348         u64 icrxdmtc;
 349         u64 icrxoc;
 350         u64 cbtmpc;
 351         u64 htdpmc;
 352         u64 cbrdpc;
 353         u64 cbrmpc;
 354         u64 rpthc;
 355         u64 hgptc;
 356         u64 htcbdpc;
 357         u64 hgorc;
 358         u64 hgotc;
 359         u64 lenerrs;
 360         u64 scvpc;
 361         u64 hrmpc;
 362 };
 363
 364 struct e1000_phy_stats {
 365         u32 idle_errors;
 366         u32 receive_errors;
 367 };
 368
 369 struct e1000_host_mng_dhcp_cookie {
 370         u32 signature;
 371         u8  status;
 372         u8  reserved0;
 373         u16 vlan_id;
 374         u32 reserved1;
 375         u16 reserved2;
 376         u8  reserved3;
 377         u8  checksum;
 378 };
 379
 380 /* Host Interface "Rev 1" */
 381 struct e1000_host_command_header {
 382         u8 command_id;
 383         u8 command_length;
 384         u8 command_options;
 385         u8 checksum;
 386 };
 387
 388 #define E1000_HI_MAX_DATA_LENGTH     252
 389 struct e1000_host_command_info {
 390         struct e1000_host_command_header command_header;
 391         u8 command_data[E1000_HI_MAX_DATA_LENGTH];
 392 };
 393
 394 /* Host Interface "Rev 2" */
 395 struct e1000_host_mng_command_header {
 396         u8  command_id;
 397         u8  checksum;
 398         u16 reserved1;
 399         u16 reserved2;
 400         u16 command_length;
 401 };
 402
 403 #define E1000_HI_MAX_MNG_DATA_LENGTH 0x6F8
 404 struct e1000_host_mng_command_info {
 405         struct e1000_host_mng_command_header command_header;
 406         u8 command_data[E1000_HI_MAX_MNG_DATA_LENGTH];
 407 };
 408
 409 #include "e1000_mac.h"
 410 #include "e1000_phy.h"
 411 #include "e1000_nvm.h"
 412
 413 struct e1000_mac_operations {
 414         s32  (*check_for_link)(struct e1000_hw *);
 415         s32  (*reset_hw)(struct e1000_hw *);
 416         s32  (*init_hw)(struct e1000_hw *);
 417         bool (*check_mng_mode)(struct e1000_hw *);
 418         s32  (*setup_physical_interface)(struct e1000_hw *);
 419         void (*rar_set)(struct e1000_hw *, u8 *, u32);
 420         s32  (*read_mac_addr)(struct e1000_hw *);
 421         s32  (*get_speed_and_duplex)(struct e1000_hw *, u16 *, u16 *);
 422 };
 423
 424 struct e1000_phy_operations {
 425         s32  (*acquire_phy)(struct e1000_hw *);
 426         s32  (*check_reset_block)(struct e1000_hw *);
 427         s32  (*force_speed_duplex)(struct e1000_hw *);
 428         s32  (*get_cfg_done)(struct e1000_hw *hw);
 429         s32  (*get_cable_length)(struct e1000_hw *);
 430         s32  (*get_phy_info)(struct e1000_hw *);
 431         s32  (*read_phy_reg)(struct e1000_hw *, u32, u16 *);
 432         void (*release_phy)(struct e1000_hw *);
 433         s32  (*reset_phy)(struct e1000_hw *);
 434         s32  (*set_d0_lplu_state)(struct e1000_hw *, bool);
 435         s32  (*set_d3_lplu_state)(struct e1000_hw *, bool);
 436         s32  (*write_phy_reg)(struct e1000_hw *, u32, u16);
 437 };
 438
 439 struct e1000_nvm_operations {
 440         s32  (*acquire_nvm)(struct e1000_hw *);
 441         s32  (*read_nvm)(struct e1000_hw *, u16, u16, u16 *);
 442         void (*release_nvm)(struct e1000_hw *);
 443         s32  (*write_nvm)(struct e1000_hw *, u16, u16, u16 *);
 444 };
 445
 446 struct e1000_info {
 447         s32 (*get_invariants)(struct e1000_hw *);
 448         struct e1000_mac_operations *mac_ops;
 449         struct e1000_phy_operations *phy_ops;
 450         struct e1000_nvm_operations *nvm_ops;
 451 };
 452
 453 extern const struct e1000_info e1000_82575_info;
 454
 455 struct e1000_mac_info {
 456         struct e1000_mac_operations ops;
 457
 458         u8 addr[6];
 459         u8 perm_addr[6];
 460
 461         enum e1000_mac_type type;
 462
 463         u32 collision_delta;
 464         u32 ledctl_default;
 465         u32 ledctl_mode1;
 466         u32 ledctl_mode2;
 467         u32 mc_filter_type;
 468         u32 tx_packet_delta;
 469         u32 txcw;
 470
 471         u16 current_ifs_val;
 472         u16 ifs_max_val;
 473         u16 ifs_min_val;
 474         u16 ifs_ratio;
 475         u16 ifs_step_size;
 476         u16 mta_reg_count;
 477         u16 rar_entry_count;
 478
 479         u8  forced_speed_duplex;
 480
 481         bool adaptive_ifs;
 482         bool arc_subsystem_valid;
 483         bool asf_firmware_present;
 484         bool autoneg;
 485         bool autoneg_failed;
 486         bool disable_av;
 487         bool disable_hw_init_bits;
 488         bool get_link_status;
 489         bool ifs_params_forced;
 490         bool in_ifs_mode;
 491         bool report_tx_early;
 492         bool serdes_has_link;
 493         bool tx_pkt_filtering;
 494 };
 495
 496 struct e1000_phy_info {
 497         struct e1000_phy_operations ops;
 498
 499         enum e1000_phy_type type;
 500
 501         enum e1000_1000t_rx_status local_rx;
 502         enum e1000_1000t_rx_status remote_rx;
 503         enum e1000_ms_type ms_type;
 504         enum e1000_ms_type original_ms_type;
 505         enum e1000_rev_polarity cable_polarity;
 506         enum e1000_smart_speed smart_speed;
 507
 508         u32 addr;
 509         u32 id;
 510         u32 reset_delay_us; /* in usec */
 511         u32 revision;
 512
 513         enum e1000_media_type media_type;
 514
 515         u16 autoneg_advertised;
 516         u16 autoneg_mask;
 517         u16 cable_length;
 518         u16 max_cable_length;
 519         u16 min_cable_length;
 520
 521         u8 mdix;
 522
 523         bool disable_polarity_correction;
 524         bool is_mdix;
 525         bool polarity_correction;
 526         bool reset_disable;
 527         bool speed_downgraded;
 528         bool autoneg_wait_to_complete;
 529 };
 530
 531 struct e1000_nvm_info {
 532         struct e1000_nvm_operations ops;
 533
 534         enum e1000_nvm_type type;
 535         enum e1000_nvm_override override;
 536
 537         u32 flash_bank_size;
 538         u32 flash_base_addr;
 539
 540         u16 word_size;
 541         u16 delay_usec;
 542         u16 address_bits;
 543         u16 opcode_bits;
 544         u16 page_size;
 545 };
 546
 547 struct e1000_bus_info {
 548         enum e1000_bus_type type;
 549         enum e1000_bus_speed speed;
 550         enum e1000_bus_width width;
 551
 552         u32 snoop;
 553
 554         u16 func;
 555         u16 pci_cmd_word;
 556 };
 557
 558 struct e1000_fc_info {
 559         u32 high_water;     /* Flow control high-water mark */
 560         u32 low_water;      /* Flow control low-water mark */
 561         u16 pause_time;     /* Flow control pause timer */
 562         bool send_xon;      /* Flow control send XON */
 563         bool strict_ieee;   /* Strict IEEE mode */
 564         enum e1000_fc_type type; /* Type of flow control */
 565         enum e1000_fc_type original_type;
 566 };
 567
 568 struct e1000_hw {
 569         void *back;
 570         void *dev_spec;
 571
 572         u8 __iomem *hw_addr;
 573         u8 __iomem *flash_address;
 574         unsigned long io_base;
 575
 576         struct e1000_mac_info  mac;
 577         struct e1000_fc_info   fc;
 578         struct e1000_phy_info  phy;
 579         struct e1000_nvm_info  nvm;
 580         struct e1000_bus_info  bus;
 581         struct e1000_host_mng_dhcp_cookie mng_cookie;
 582
 583         u32 dev_spec_size;
 584
 585         u16 device_id;
 586         u16 subsystem_vendor_id;
 587         u16 subsystem_device_id;
 588         u16 vendor_id;
 589
 590         u8  revision_id;
 591 };
 592
 593 #ifdef DEBUG
 594 extern char *igb_get_hw_dev_name(struct e1000_hw *hw);
 595 #define hw_dbg(format, arg...) \
 596         printk(KERN_DEBUG "%s: " format, igb_get_hw_dev_name(hw), ##arg)
 597 #else
 598 #define hw_dbg(format, arg...)
 599 #endif
 600
 601 #endif