drivers/net/ethernet/intel/ixgbe/ixgbe.h

   1 /*******************************************************************************
   2
   3   Intel 10 Gigabit PCI Express Linux driver
   4   Copyright(c) 1999 - 2012 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 _IXGBE_H_
  29 #define _IXGBE_H_
  30
  31 #include <linux/bitops.h>
  32 #include <linux/types.h>
  33 #include <linux/pci.h>
  34 #include <linux/netdevice.h>
  35 #include <linux/cpumask.h>
  36 #include <linux/aer.h>
  37 #include <linux/if_vlan.h>
  38
  39 #include "ixgbe_type.h"
  40 #include "ixgbe_common.h"
  41 #include "ixgbe_dcb.h"
  42 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
  43 #define IXGBE_FCOE
  44 #include "ixgbe_fcoe.h"
  45 #endif /* CONFIG_FCOE or CONFIG_FCOE_MODULE */
  46 #ifdef CONFIG_IXGBE_DCA
  47 #include <linux/dca.h>
  48 #endif
  49
  50 /* common prefix used by pr_<> macros */
  51 #undef pr_fmt
  52 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  53
  54 /* TX/RX descriptor defines */
  55 #define IXGBE_DEFAULT_TXD                   512
  56 #define IXGBE_DEFAULT_TX_WORK               256
  57 #define IXGBE_MAX_TXD                      4096
  58 #define IXGBE_MIN_TXD                        64
  59
  60 #define IXGBE_DEFAULT_RXD                   512
  61 #define IXGBE_MAX_RXD                      4096
  62 #define IXGBE_MIN_RXD                        64
  63
  64 /* flow control */
  65 #define IXGBE_MIN_FCRTL                    0x40
  66 #define IXGBE_MAX_FCRTL                 0x7FF80
  67 #define IXGBE_MIN_FCRTH                   0x600
  68 #define IXGBE_MAX_FCRTH                 0x7FFF0
  69 #define IXGBE_DEFAULT_FCPAUSE            0xFFFF
  70 #define IXGBE_MIN_FCPAUSE                     0
  71 #define IXGBE_MAX_FCPAUSE                0xFFFF
  72
  73 /* Supported Rx Buffer Sizes */
  74 #define IXGBE_RXBUFFER_512   512    /* Used for packet split */
  75 #define IXGBE_MAX_RXBUFFER  16384  /* largest size for a single descriptor */
  76
  77 /*
  78  * NOTE: netdev_alloc_skb reserves up to 64 bytes, NET_IP_ALIGN mans we
  79  * reserve 2 more, and skb_shared_info adds an additional 384 bytes more,
  80  * this adds up to 512 bytes of extra data meaning the smallest allocation
  81  * we could have is 1K.
  82  * i.e. RXBUFFER_512 --> size-1024 slab
  83  */
  84 #define IXGBE_RX_HDR_SIZE IXGBE_RXBUFFER_512
  85
  86 #define MAXIMUM_ETHERNET_VLAN_SIZE (ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN)
  87
  88 /* How many Rx Buffers do we bundle into one write to the hardware ? */
  89 #define IXGBE_RX_BUFFER_WRITE   16      /* Must be power of 2 */
  90
  91 #define IXGBE_TX_FLAGS_CSUM             (u32)(1)
  92 #define IXGBE_TX_FLAGS_HW_VLAN          (u32)(1 << 1)
  93 #define IXGBE_TX_FLAGS_SW_VLAN          (u32)(1 << 2)
  94 #define IXGBE_TX_FLAGS_TSO              (u32)(1 << 3)
  95 #define IXGBE_TX_FLAGS_IPV4             (u32)(1 << 4)
  96 #define IXGBE_TX_FLAGS_FCOE             (u32)(1 << 5)
  97 #define IXGBE_TX_FLAGS_FSO              (u32)(1 << 6)
  98 #define IXGBE_TX_FLAGS_TXSW             (u32)(1 << 7)
  99 #define IXGBE_TX_FLAGS_VLAN_MASK        0xffff0000
 100 #define IXGBE_TX_FLAGS_VLAN_PRIO_MASK   0xe0000000
 101 #define IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT  29
 102 #define IXGBE_TX_FLAGS_VLAN_SHIFT       16
 103
 104 #define IXGBE_MAX_VF_MC_ENTRIES         30
 105 #define IXGBE_MAX_VF_FUNCTIONS          64
 106 #define IXGBE_MAX_VFTA_ENTRIES          128
 107 #define MAX_EMULATION_MAC_ADDRS         16
 108 #define IXGBE_MAX_PF_MACVLANS           15
 109 #define VMDQ_P(p)   ((p) + adapter->num_vfs)
 110 #define IXGBE_82599_VF_DEVICE_ID        0x10ED
 111 #define IXGBE_X540_VF_DEVICE_ID         0x1515
 112
 113 struct vf_data_storage {
 114         unsigned char vf_mac_addresses[ETH_ALEN];
 115         u16 vf_mc_hashes[IXGBE_MAX_VF_MC_ENTRIES];
 116         u16 num_vf_mc_hashes;
 117         u16 default_vf_vlan_id;
 118         u16 vlans_enabled;
 119         bool clear_to_send;
 120         bool pf_set_mac;
 121         u16 pf_vlan; /* When set, guest VLAN config not allowed. */
 122         u16 pf_qos;
 123         u16 tx_rate;
 124         u16 vlan_count;
 125         u8 spoofchk_enabled;
 126         struct pci_dev *vfdev;
 127 };
 128
 129 struct vf_macvlans {
 130         struct list_head l;
 131         int vf;
 132         int rar_entry;
 133         bool free;
 134         bool is_macvlan;
 135         u8 vf_macvlan[ETH_ALEN];
 136 };
 137
 138 #define IXGBE_MAX_TXD_PWR       14
 139 #define IXGBE_MAX_DATA_PER_TXD  (1 << IXGBE_MAX_TXD_PWR)
 140
 141 /* Tx Descriptors needed, worst case */
 142 #define TXD_USE_COUNT(S) DIV_ROUND_UP((S), IXGBE_MAX_DATA_PER_TXD)
 143 #define DESC_NEEDED ((MAX_SKB_FRAGS * TXD_USE_COUNT(PAGE_SIZE)) + 4)
 144
 145 /* wrapper around a pointer to a socket buffer,
 146  * so a DMA handle can be stored along with the buffer */
 147 struct ixgbe_tx_buffer {
 148         union ixgbe_adv_tx_desc *next_to_watch;
 149         unsigned long time_stamp;
 150         struct sk_buff *skb;
 151         unsigned int bytecount;
 152         unsigned short gso_segs;
 153         __be16 protocol;
 154         DEFINE_DMA_UNMAP_ADDR(dma);
 155         DEFINE_DMA_UNMAP_LEN(len);
 156         u32 tx_flags;
 157 };
 158
 159 struct ixgbe_rx_buffer {
 160         struct sk_buff *skb;
 161         dma_addr_t dma;
 162         struct page *page;
 163         unsigned int page_offset;
 164 };
 165
 166 struct ixgbe_queue_stats {
 167         u64 packets;
 168         u64 bytes;
 169 };
 170
 171 struct ixgbe_tx_queue_stats {
 172         u64 restart_queue;
 173         u64 tx_busy;
 174         u64 tx_done_old;
 175 };
 176
 177 struct ixgbe_rx_queue_stats {
 178         u64 rsc_count;
 179         u64 rsc_flush;
 180         u64 non_eop_descs;
 181         u64 alloc_rx_page_failed;
 182         u64 alloc_rx_buff_failed;
 183         u64 csum_err;
 184 };
 185
 186 enum ixgbe_ring_state_t {
 187         __IXGBE_TX_FDIR_INIT_DONE,
 188         __IXGBE_TX_DETECT_HANG,
 189         __IXGBE_HANG_CHECK_ARMED,
 190         __IXGBE_RX_RSC_ENABLED,
 191         __IXGBE_RX_CSUM_UDP_ZERO_ERR,
 192         __IXGBE_RX_FCOE_BUFSZ,
 193 };
 194
 195 #define check_for_tx_hang(ring) \
 196         test_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
 197 #define set_check_for_tx_hang(ring) \
 198         set_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
 199 #define clear_check_for_tx_hang(ring) \
 200         clear_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
 201 #define ring_is_rsc_enabled(ring) \
 202         test_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
 203 #define set_ring_rsc_enabled(ring) \
 204         set_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
 205 #define clear_ring_rsc_enabled(ring) \
 206         clear_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
 207 struct ixgbe_ring {
 208         struct ixgbe_ring *next;        /* pointer to next ring in q_vector */
 209         struct ixgbe_q_vector *q_vector; /* backpointer to host q_vector */
 210         struct net_device *netdev;      /* netdev ring belongs to */
 211         struct device *dev;             /* device for DMA mapping */
 212         void *desc;                     /* descriptor ring memory */
 213         union {
 214                 struct ixgbe_tx_buffer *tx_buffer_info;
 215                 struct ixgbe_rx_buffer *rx_buffer_info;
 216         };
 217         unsigned long state;
 218         u8 __iomem *tail;
 219         dma_addr_t dma;                 /* phys. address of descriptor ring */
 220         unsigned int size;              /* length in bytes */
 221
 222         u16 count;                      /* amount of descriptors */
 223
 224         u8 queue_index; /* needed for multiqueue queue management */
 225         u8 reg_idx;                     /* holds the special value that gets
 226                                          * the hardware register offset
 227                                          * associated with this ring, which is
 228                                          * different for DCB and RSS modes
 229                                          */
 230         u16 next_to_use;
 231         u16 next_to_clean;
 232
 233         union {
 234                 u16 next_to_alloc;
 235                 struct {
 236                         u8 atr_sample_rate;
 237                         u8 atr_count;
 238                 };
 239         };
 240
 241         u8 dcb_tc;
 242         struct ixgbe_queue_stats stats;
 243         struct u64_stats_sync syncp;
 244         union {
 245                 struct ixgbe_tx_queue_stats tx_stats;
 246                 struct ixgbe_rx_queue_stats rx_stats;
 247         };
 248 } ____cacheline_internodealigned_in_smp;
 249
 250 enum ixgbe_ring_f_enum {
 251         RING_F_NONE = 0,
 252         RING_F_VMDQ,  /* SR-IOV uses the same ring feature */
 253         RING_F_RSS,
 254         RING_F_FDIR,
 255 #ifdef IXGBE_FCOE
 256         RING_F_FCOE,
 257 #endif /* IXGBE_FCOE */
 258
 259         RING_F_ARRAY_SIZE      /* must be last in enum set */
 260 };
 261
 262 #define IXGBE_MAX_RSS_INDICES  16
 263 #define IXGBE_MAX_VMDQ_INDICES 64
 264 #define IXGBE_MAX_FDIR_INDICES 64
 265 #ifdef IXGBE_FCOE
 266 #define IXGBE_MAX_FCOE_INDICES  8
 267 #define MAX_RX_QUEUES (IXGBE_MAX_FDIR_INDICES + IXGBE_MAX_FCOE_INDICES)
 268 #define MAX_TX_QUEUES (IXGBE_MAX_FDIR_INDICES + IXGBE_MAX_FCOE_INDICES)
 269 #else
 270 #define MAX_RX_QUEUES IXGBE_MAX_FDIR_INDICES
 271 #define MAX_TX_QUEUES IXGBE_MAX_FDIR_INDICES
 272 #endif /* IXGBE_FCOE */
 273 struct ixgbe_ring_feature {
 274         int indices;
 275         int mask;
 276 } ____cacheline_internodealigned_in_smp;
 277
 278 /*
 279  * FCoE requires that all Rx buffers be over 2200 bytes in length.  Since
 280  * this is twice the size of a half page we need to double the page order
 281  * for FCoE enabled Rx queues.
 282  */
 283 #if defined(IXGBE_FCOE) && (PAGE_SIZE < 8192)
 284 static inline unsigned int ixgbe_rx_pg_order(struct ixgbe_ring *ring)
 285 {
 286         return test_bit(__IXGBE_RX_FCOE_BUFSZ, &ring->state) ? 1 : 0;
 287 }
 288 #else
 289 #define ixgbe_rx_pg_order(_ring) 0
 290 #endif
 291 #define ixgbe_rx_pg_size(_ring) (PAGE_SIZE << ixgbe_rx_pg_order(_ring))
 292 #define ixgbe_rx_bufsz(_ring) ((PAGE_SIZE / 2) << ixgbe_rx_pg_order(_ring))
 293
 294 struct ixgbe_ring_container {
 295         struct ixgbe_ring *ring;        /* pointer to linked list of rings */
 296         unsigned int total_bytes;       /* total bytes processed this int */
 297         unsigned int total_packets;     /* total packets processed this int */
 298         u16 work_limit;                 /* total work allowed per interrupt */
 299         u8 count;                       /* total number of rings in vector */
 300         u8 itr;                         /* current ITR setting for ring */
 301 };
 302
 303 /* iterator for handling rings in ring container */
 304 #define ixgbe_for_each_ring(pos, head) \
 305         for (pos = (head).ring; pos != NULL; pos = pos->next)
 306
 307 #define MAX_RX_PACKET_BUFFERS ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) \
 308                               ? 8 : 1)
 309 #define MAX_TX_PACKET_BUFFERS MAX_RX_PACKET_BUFFERS
 310
 311 /* MAX_MSIX_Q_VECTORS of these are allocated,
 312  * but we only use one per queue-specific vector.
 313  */
 314 struct ixgbe_q_vector {
 315         struct ixgbe_adapter *adapter;
 316 #ifdef CONFIG_IXGBE_DCA
 317         int cpu;            /* CPU for DCA */
 318 #endif
 319         u16 v_idx;              /* index of q_vector within array, also used for
 320                                  * finding the bit in EICR and friends that
 321                                  * represents the vector for this ring */
 322         u16 itr;                /* Interrupt throttle rate written to EITR */
 323         struct ixgbe_ring_container rx, tx;
 324
 325         struct napi_struct napi;
 326         cpumask_t affinity_mask;
 327         int numa_node;
 328         struct rcu_head rcu;    /* to avoid race with update stats on free */
 329         char name[IFNAMSIZ + 9];
 330
 331         /* for dynamic allocation of rings associated with this q_vector */
 332         struct ixgbe_ring ring[0] ____cacheline_internodealigned_in_smp;
 333 };
 334 #ifdef CONFIG_IXGBE_HWMON
 335
 336 #define IXGBE_HWMON_TYPE_LOC            0
 337 #define IXGBE_HWMON_TYPE_TEMP           1
 338 #define IXGBE_HWMON_TYPE_CAUTION        2
 339 #define IXGBE_HWMON_TYPE_MAX            3
 340
 341 struct hwmon_attr {
 342         struct device_attribute dev_attr;
 343         struct ixgbe_hw *hw;
 344         struct ixgbe_thermal_diode_data *sensor;
 345         char name[12];
 346 };
 347
 348 struct hwmon_buff {
 349         struct device *device;
 350         struct hwmon_attr *hwmon_list;
 351         unsigned int n_hwmon;
 352 };
 353 #endif /* CONFIG_IXGBE_HWMON */
 354
 355 /*
 356  * microsecond values for various ITR rates shifted by 2 to fit itr register
 357  * with the first 3 bits reserved 0
 358  */
 359 #define IXGBE_MIN_RSC_ITR       24
 360 #define IXGBE_100K_ITR          40
 361 #define IXGBE_20K_ITR           200
 362 #define IXGBE_10K_ITR           400
 363 #define IXGBE_8K_ITR            500
 364
 365 /* ixgbe_test_staterr - tests bits in Rx descriptor status and error fields */
 366 static inline __le32 ixgbe_test_staterr(union ixgbe_adv_rx_desc *rx_desc,
 367                                         const u32 stat_err_bits)
 368 {
 369         return rx_desc->wb.upper.status_error & cpu_to_le32(stat_err_bits);
 370 }
 371
 372 static inline u16 ixgbe_desc_unused(struct ixgbe_ring *ring)
 373 {
 374         u16 ntc = ring->next_to_clean;
 375         u16 ntu = ring->next_to_use;
 376
 377         return ((ntc > ntu) ? 0 : ring->count) + ntc - ntu - 1;
 378 }
 379
 380 #define IXGBE_RX_DESC(R, i)         \
 381         (&(((union ixgbe_adv_rx_desc *)((R)->desc))[i]))
 382 #define IXGBE_TX_DESC(R, i)         \
 383         (&(((union ixgbe_adv_tx_desc *)((R)->desc))[i]))
 384 #define IXGBE_TX_CTXTDESC(R, i)     \
 385         (&(((struct ixgbe_adv_tx_context_desc *)((R)->desc))[i]))
 386
 387 #define IXGBE_MAX_JUMBO_FRAME_SIZE        16128
 388 #ifdef IXGBE_FCOE
 389 /* Use 3K as the baby jumbo frame size for FCoE */
 390 #define IXGBE_FCOE_JUMBO_FRAME_SIZE       3072
 391 #endif /* IXGBE_FCOE */
 392
 393 #define OTHER_VECTOR 1
 394 #define NON_Q_VECTORS (OTHER_VECTOR)
 395
 396 #define MAX_MSIX_VECTORS_82599 64
 397 #define MAX_MSIX_Q_VECTORS_82599 64
 398 #define MAX_MSIX_VECTORS_82598 18
 399 #define MAX_MSIX_Q_VECTORS_82598 16
 400
 401 #define MAX_MSIX_Q_VECTORS MAX_MSIX_Q_VECTORS_82599
 402 #define MAX_MSIX_COUNT MAX_MSIX_VECTORS_82599
 403
 404 #define MIN_MSIX_Q_VECTORS 1
 405 #define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NON_Q_VECTORS)
 406
 407 /* default to trying for four seconds */
 408 #define IXGBE_TRY_LINK_TIMEOUT (4 * HZ)
 409
 410 /* board specific private data structure */
 411 struct ixgbe_adapter {
 412         unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
 413         /* OS defined structs */
 414         struct net_device *netdev;
 415         struct pci_dev *pdev;
 416
 417         unsigned long state;
 418
 419         /* Some features need tri-state capability,
 420          * thus the additional *_CAPABLE flags.
 421          */
 422         u32 flags;
 423 #define IXGBE_FLAG_MSI_CAPABLE                  (u32)(1 << 1)
 424 #define IXGBE_FLAG_MSI_ENABLED                  (u32)(1 << 2)
 425 #define IXGBE_FLAG_MSIX_CAPABLE                 (u32)(1 << 3)
 426 #define IXGBE_FLAG_MSIX_ENABLED                 (u32)(1 << 4)
 427 #define IXGBE_FLAG_RX_1BUF_CAPABLE              (u32)(1 << 6)
 428 #define IXGBE_FLAG_RX_PS_CAPABLE                (u32)(1 << 7)
 429 #define IXGBE_FLAG_RX_PS_ENABLED                (u32)(1 << 8)
 430 #define IXGBE_FLAG_IN_NETPOLL                   (u32)(1 << 9)
 431 #define IXGBE_FLAG_DCA_ENABLED                  (u32)(1 << 10)
 432 #define IXGBE_FLAG_DCA_CAPABLE                  (u32)(1 << 11)
 433 #define IXGBE_FLAG_IMIR_ENABLED                 (u32)(1 << 12)
 434 #define IXGBE_FLAG_MQ_CAPABLE                   (u32)(1 << 13)
 435 #define IXGBE_FLAG_DCB_ENABLED                  (u32)(1 << 14)
 436 #define IXGBE_FLAG_RSS_ENABLED                  (u32)(1 << 16)
 437 #define IXGBE_FLAG_RSS_CAPABLE                  (u32)(1 << 17)
 438 #define IXGBE_FLAG_VMDQ_CAPABLE                 (u32)(1 << 18)
 439 #define IXGBE_FLAG_VMDQ_ENABLED                 (u32)(1 << 19)
 440 #define IXGBE_FLAG_FAN_FAIL_CAPABLE             (u32)(1 << 20)
 441 #define IXGBE_FLAG_NEED_LINK_UPDATE             (u32)(1 << 22)
 442 #define IXGBE_FLAG_NEED_LINK_CONFIG             (u32)(1 << 23)
 443 #define IXGBE_FLAG_FDIR_HASH_CAPABLE            (u32)(1 << 24)
 444 #define IXGBE_FLAG_FDIR_PERFECT_CAPABLE         (u32)(1 << 25)
 445 #define IXGBE_FLAG_FCOE_CAPABLE                 (u32)(1 << 26)
 446 #define IXGBE_FLAG_FCOE_ENABLED                 (u32)(1 << 27)
 447 #define IXGBE_FLAG_SRIOV_CAPABLE                (u32)(1 << 28)
 448 #define IXGBE_FLAG_SRIOV_ENABLED                (u32)(1 << 29)
 449
 450         u32 flags2;
 451 #define IXGBE_FLAG2_RSC_CAPABLE                 (u32)(1)
 452 #define IXGBE_FLAG2_RSC_ENABLED                 (u32)(1 << 1)
 453 #define IXGBE_FLAG2_TEMP_SENSOR_CAPABLE         (u32)(1 << 2)
 454 #define IXGBE_FLAG2_TEMP_SENSOR_EVENT           (u32)(1 << 3)
 455 #define IXGBE_FLAG2_SEARCH_FOR_SFP              (u32)(1 << 4)
 456 #define IXGBE_FLAG2_SFP_NEEDS_RESET             (u32)(1 << 5)
 457 #define IXGBE_FLAG2_RESET_REQUESTED             (u32)(1 << 6)
 458 #define IXGBE_FLAG2_FDIR_REQUIRES_REINIT        (u32)(1 << 7)
 459 #define IXGBE_FLAG2_RSS_FIELD_IPV4_UDP          (u32)(1 << 8)
 460 #define IXGBE_FLAG2_RSS_FIELD_IPV6_UDP          (u32)(1 << 9)
 461
 462         /* Tx fast path data */
 463         int num_tx_queues;
 464         u16 tx_itr_setting;
 465         u16 tx_work_limit;
 466
 467         /* Rx fast path data */
 468         int num_rx_queues;
 469         u16 rx_itr_setting;
 470
 471         /* TX */
 472         struct ixgbe_ring *tx_ring[MAX_TX_QUEUES] ____cacheline_aligned_in_smp;
 473
 474         u64 restart_queue;
 475         u64 lsc_int;
 476         u32 tx_timeout_count;
 477
 478         /* RX */
 479         struct ixgbe_ring *rx_ring[MAX_RX_QUEUES];
 480         int num_rx_pools;               /* == num_rx_queues in 82598 */
 481         int num_rx_queues_per_pool;     /* 1 if 82598, can be many if 82599 */
 482         u64 hw_csum_rx_error;
 483         u64 hw_rx_no_dma_resources;
 484         u64 rsc_total_count;
 485         u64 rsc_total_flush;
 486         u64 non_eop_descs;
 487         u32 alloc_rx_page_failed;
 488         u32 alloc_rx_buff_failed;
 489
 490         struct ixgbe_q_vector *q_vector[MAX_MSIX_Q_VECTORS];
 491
 492         /* DCB parameters */
 493         struct ieee_pfc *ixgbe_ieee_pfc;
 494         struct ieee_ets *ixgbe_ieee_ets;
 495         struct ixgbe_dcb_config dcb_cfg;
 496         struct ixgbe_dcb_config temp_dcb_cfg;
 497         u8 dcb_set_bitmap;
 498         u8 dcbx_cap;
 499         enum ixgbe_fc_mode last_lfc_mode;
 500
 501         int num_msix_vectors;
 502         int max_msix_q_vectors;         /* true count of q_vectors for device */
 503         struct ixgbe_ring_feature ring_feature[RING_F_ARRAY_SIZE];
 504         struct msix_entry *msix_entries;
 505
 506         u32 test_icr;
 507         struct ixgbe_ring test_tx_ring;
 508         struct ixgbe_ring test_rx_ring;
 509
 510         /* structs defined in ixgbe_hw.h */
 511         struct ixgbe_hw hw;
 512         u16 msg_enable;
 513         struct ixgbe_hw_stats stats;
 514
 515         u64 tx_busy;
 516         unsigned int tx_ring_count;
 517         unsigned int rx_ring_count;
 518
 519         u32 link_speed;
 520         bool link_up;
 521         unsigned long link_check_timeout;
 522
 523         struct timer_list service_timer;
 524         struct work_struct service_task;
 525
 526         struct hlist_head fdir_filter_list;
 527         unsigned long fdir_overflow; /* number of times ATR was backed off */
 528         union ixgbe_atr_input fdir_mask;
 529         int fdir_filter_count;
 530         u32 fdir_pballoc;
 531         u32 atr_sample_rate;
 532         spinlock_t fdir_perfect_lock;
 533
 534 #ifdef IXGBE_FCOE
 535         struct ixgbe_fcoe fcoe;
 536 #endif /* IXGBE_FCOE */
 537         u32 wol;
 538
 539         u16 bd_number;
 540
 541         u16 eeprom_verh;
 542         u16 eeprom_verl;
 543         u16 eeprom_cap;
 544
 545         u32 interrupt_event;
 546         u32 led_reg;
 547
 548         /* SR-IOV */
 549         DECLARE_BITMAP(active_vfs, IXGBE_MAX_VF_FUNCTIONS);
 550         unsigned int num_vfs;
 551         struct vf_data_storage *vfinfo;
 552         int vf_rate_link_speed;
 553         struct vf_macvlans vf_mvs;
 554         struct vf_macvlans *mv_list;
 555
 556         u32 timer_event_accumulator;
 557         u32 vferr_refcount;
 558         struct kobject *info_kobj;
 559 #ifdef CONFIG_IXGBE_HWMON
 560         struct hwmon_buff ixgbe_hwmon_buff;
 561 #endif /* CONFIG_IXGBE_HWMON */
 562 };
 563
 564 struct ixgbe_fdir_filter {
 565         struct hlist_node fdir_node;
 566         union ixgbe_atr_input filter;
 567         u16 sw_idx;
 568         u16 action;
 569 };
 570
 571 enum ixgbe_state_t {
 572         __IXGBE_TESTING,
 573         __IXGBE_RESETTING,
 574         __IXGBE_DOWN,
 575         __IXGBE_SERVICE_SCHED,
 576         __IXGBE_IN_SFP_INIT,
 577 };
 578
 579 struct ixgbe_cb {
 580         union {                         /* Union defining head/tail partner */
 581                 struct sk_buff *head;
 582                 struct sk_buff *tail;
 583         };
 584         dma_addr_t dma;
 585         u16 append_cnt;
 586         bool page_released;
 587 };
 588 #define IXGBE_CB(skb) ((struct ixgbe_cb *)(skb)->cb)
 589
 590 enum ixgbe_boards {
 591         board_82598,
 592         board_82599,
 593         board_X540,
 594 };
 595
 596 extern struct ixgbe_info ixgbe_82598_info;
 597 extern struct ixgbe_info ixgbe_82599_info;
 598 extern struct ixgbe_info ixgbe_X540_info;
 599 #ifdef CONFIG_IXGBE_DCB
 600 extern const struct dcbnl_rtnl_ops dcbnl_ops;
 601 #endif
 602
 603 extern char ixgbe_driver_name[];
 604 extern const char ixgbe_driver_version[];
 605 #ifdef IXGBE_FCOE
 606 extern char ixgbe_default_device_descr[];
 607 #endif /* IXGBE_FCOE */
 608
 609 extern void ixgbe_up(struct ixgbe_adapter *adapter);
 610 extern void ixgbe_down(struct ixgbe_adapter *adapter);
 611 extern void ixgbe_reinit_locked(struct ixgbe_adapter *adapter);
 612 extern void ixgbe_reset(struct ixgbe_adapter *adapter);
 613 extern void ixgbe_set_ethtool_ops(struct net_device *netdev);
 614 extern int ixgbe_setup_rx_resources(struct ixgbe_ring *);
 615 extern int ixgbe_setup_tx_resources(struct ixgbe_ring *);
 616 extern void ixgbe_free_rx_resources(struct ixgbe_ring *);
 617 extern void ixgbe_free_tx_resources(struct ixgbe_ring *);
 618 extern void ixgbe_configure_rx_ring(struct ixgbe_adapter *,struct ixgbe_ring *);
 619 extern void ixgbe_configure_tx_ring(struct ixgbe_adapter *,struct ixgbe_ring *);
 620 extern void ixgbe_disable_rx_queue(struct ixgbe_adapter *adapter,
 621                                    struct ixgbe_ring *);
 622 extern void ixgbe_update_stats(struct ixgbe_adapter *adapter);
 623 extern int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter);
 624 extern int ixgbe_wol_supported(struct ixgbe_adapter *adapter, u16 device_id,
 625                                u16 subdevice_id);
 626 extern void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter);
 627 extern netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *,
 628                                          struct ixgbe_adapter *,
 629                                          struct ixgbe_ring *);
 630 extern void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *,
 631                                              struct ixgbe_tx_buffer *);
 632 extern void ixgbe_alloc_rx_buffers(struct ixgbe_ring *, u16);
 633 extern void ixgbe_write_eitr(struct ixgbe_q_vector *);
 634 extern int ixgbe_poll(struct napi_struct *napi, int budget);
 635 extern int ethtool_ioctl(struct ifreq *ifr);
 636 extern s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw);
 637 extern s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl);
 638 extern s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl);
 639 extern s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
 640                                                  union ixgbe_atr_hash_dword input,
 641                                                  union ixgbe_atr_hash_dword common,
 642                                                  u8 queue);
 643 extern s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
 644                                            union ixgbe_atr_input *input_mask);
 645 extern s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
 646                                                  union ixgbe_atr_input *input,
 647                                                  u16 soft_id, u8 queue);
 648 extern s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
 649                                                  union ixgbe_atr_input *input,
 650                                                  u16 soft_id);
 651 extern void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
 652                                                  union ixgbe_atr_input *mask);
 653 extern void ixgbe_set_rx_mode(struct net_device *netdev);
 654 #ifdef CONFIG_IXGBE_DCB
 655 extern int ixgbe_setup_tc(struct net_device *dev, u8 tc);
 656 #endif
 657 extern void ixgbe_tx_ctxtdesc(struct ixgbe_ring *, u32, u32, u32, u32);
 658 extern void ixgbe_do_reset(struct net_device *netdev);
 659 extern void ixgbe_sysfs_exit(struct ixgbe_adapter *adapter);
 660 extern int ixgbe_sysfs_init(struct ixgbe_adapter *adapter);
 661 #ifdef IXGBE_FCOE
 662 extern void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter);
 663 extern int ixgbe_fso(struct ixgbe_ring *tx_ring,
 664                      struct ixgbe_tx_buffer *first,
 665                      u8 *hdr_len);
 666 extern void ixgbe_cleanup_fcoe(struct ixgbe_adapter *adapter);
 667 extern int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter,
 668                           union ixgbe_adv_rx_desc *rx_desc,
 669                           struct sk_buff *skb);
 670 extern int ixgbe_fcoe_ddp_get(struct net_device *netdev, u16 xid,
 671                               struct scatterlist *sgl, unsigned int sgc);
 672 extern int ixgbe_fcoe_ddp_target(struct net_device *netdev, u16 xid,
 673                                  struct scatterlist *sgl, unsigned int sgc);
 674 extern int ixgbe_fcoe_ddp_put(struct net_device *netdev, u16 xid);
 675 extern int ixgbe_fcoe_enable(struct net_device *netdev);
 676 extern int ixgbe_fcoe_disable(struct net_device *netdev);
 677 #ifdef CONFIG_IXGBE_DCB
 678 extern u8 ixgbe_fcoe_getapp(struct ixgbe_adapter *adapter);
 679 extern u8 ixgbe_fcoe_setapp(struct ixgbe_adapter *adapter, u8 up);
 680 #endif /* CONFIG_IXGBE_DCB */
 681 extern int ixgbe_fcoe_get_wwn(struct net_device *netdev, u64 *wwn, int type);
 682 extern int ixgbe_fcoe_get_hbainfo(struct net_device *netdev,
 683                                   struct netdev_fcoe_hbainfo *info);
 684 #endif /* IXGBE_FCOE */
 685
 686 static inline struct netdev_queue *txring_txq(const struct ixgbe_ring *ring)
 687 {
 688         return netdev_get_tx_queue(ring->netdev, ring->queue_index);
 689 }
 690
 691 #endif /* _IXGBE_H_ */