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

   1 /*******************************************************************************
   2
   3   Intel 10 Gigabit PCI Express Linux driver
   4   Copyright(c) 1999 - 2013 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 #include <linux/jiffies.h>
  39
  40 #include <linux/clocksource.h>
  41 #include <linux/net_tstamp.h>
  42 #include <linux/ptp_clock_kernel.h>
  43
  44 #include "ixgbe_type.h"
  45 #include "ixgbe_common.h"
  46 #include "ixgbe_dcb.h"
  47 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
  48 #define IXGBE_FCOE
  49 #include "ixgbe_fcoe.h"
  50 #endif /* CONFIG_FCOE or CONFIG_FCOE_MODULE */
  51 #ifdef CONFIG_IXGBE_DCA
  52 #include <linux/dca.h>
  53 #endif
  54
  55 /* common prefix used by pr_<> macros */
  56 #undef pr_fmt
  57 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  58
  59 /* TX/RX descriptor defines */
  60 #define IXGBE_DEFAULT_TXD                   512
  61 #define IXGBE_DEFAULT_TX_WORK               256
  62 #define IXGBE_MAX_TXD                      4096
  63 #define IXGBE_MIN_TXD                        64
  64
  65 #define IXGBE_DEFAULT_RXD                   512
  66 #define IXGBE_MAX_RXD                      4096
  67 #define IXGBE_MIN_RXD                        64
  68
  69 /* flow control */
  70 #define IXGBE_MIN_FCRTL                    0x40
  71 #define IXGBE_MAX_FCRTL                 0x7FF80
  72 #define IXGBE_MIN_FCRTH                   0x600
  73 #define IXGBE_MAX_FCRTH                 0x7FFF0
  74 #define IXGBE_DEFAULT_FCPAUSE            0xFFFF
  75 #define IXGBE_MIN_FCPAUSE                     0
  76 #define IXGBE_MAX_FCPAUSE                0xFFFF
  77
  78 /* Supported Rx Buffer Sizes */
  79 #define IXGBE_RXBUFFER_256    256  /* Used for skb receive header */
  80 #define IXGBE_RXBUFFER_2K    2048
  81 #define IXGBE_RXBUFFER_3K    3072
  82 #define IXGBE_RXBUFFER_4K    4096
  83 #define IXGBE_MAX_RXBUFFER  16384  /* largest size for a single descriptor */
  84
  85 /*
  86  * NOTE: netdev_alloc_skb reserves up to 64 bytes, NET_IP_ALIGN means we
  87  * reserve 64 more, and skb_shared_info adds an additional 320 bytes more,
  88  * this adds up to 448 bytes of extra data.
  89  *
  90  * Since netdev_alloc_skb now allocates a page fragment we can use a value
  91  * of 256 and the resultant skb will have a truesize of 960 or less.
  92  */
  93 #define IXGBE_RX_HDR_SIZE IXGBE_RXBUFFER_256
  94
  95 /* How many Rx Buffers do we bundle into one write to the hardware ? */
  96 #define IXGBE_RX_BUFFER_WRITE   16      /* Must be power of 2 */
  97
  98 enum ixgbe_tx_flags {
  99         /* cmd_type flags */
 100         IXGBE_TX_FLAGS_HW_VLAN  = 0x01,
 101         IXGBE_TX_FLAGS_TSO      = 0x02,
 102         IXGBE_TX_FLAGS_TSTAMP   = 0x04,
 103
 104         /* olinfo flags */
 105         IXGBE_TX_FLAGS_CC       = 0x08,
 106         IXGBE_TX_FLAGS_IPV4     = 0x10,
 107         IXGBE_TX_FLAGS_CSUM     = 0x20,
 108
 109         /* software defined flags */
 110         IXGBE_TX_FLAGS_SW_VLAN  = 0x40,
 111         IXGBE_TX_FLAGS_FCOE     = 0x80,
 112 };
 113
 114 /* VLAN info */
 115 #define IXGBE_TX_FLAGS_VLAN_MASK        0xffff0000
 116 #define IXGBE_TX_FLAGS_VLAN_PRIO_MASK   0xe0000000
 117 #define IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT  29
 118 #define IXGBE_TX_FLAGS_VLAN_SHIFT       16
 119
 120 #define IXGBE_MAX_VF_MC_ENTRIES         30
 121 #define IXGBE_MAX_VF_FUNCTIONS          64
 122 #define IXGBE_MAX_VFTA_ENTRIES          128
 123 #define MAX_EMULATION_MAC_ADDRS         16
 124 #define IXGBE_MAX_PF_MACVLANS           15
 125 #define VMDQ_P(p)   ((p) + adapter->ring_feature[RING_F_VMDQ].offset)
 126 #define IXGBE_82599_VF_DEVICE_ID        0x10ED
 127 #define IXGBE_X540_VF_DEVICE_ID         0x1515
 128
 129 struct vf_data_storage {
 130         unsigned char vf_mac_addresses[ETH_ALEN];
 131         u16 vf_mc_hashes[IXGBE_MAX_VF_MC_ENTRIES];
 132         u16 num_vf_mc_hashes;
 133         u16 default_vf_vlan_id;
 134         u16 vlans_enabled;
 135         bool clear_to_send;
 136         bool pf_set_mac;
 137         u16 pf_vlan; /* When set, guest VLAN config not allowed. */
 138         u16 pf_qos;
 139         u16 tx_rate;
 140         u16 vlan_count;
 141         u8 spoofchk_enabled;
 142         unsigned int vf_api;
 143 };
 144
 145 struct vf_macvlans {
 146         struct list_head l;
 147         int vf;
 148         int rar_entry;
 149         bool free;
 150         bool is_macvlan;
 151         u8 vf_macvlan[ETH_ALEN];
 152 };
 153
 154 #define IXGBE_MAX_TXD_PWR       14
 155 #define IXGBE_MAX_DATA_PER_TXD  (1 << IXGBE_MAX_TXD_PWR)
 156
 157 /* Tx Descriptors needed, worst case */
 158 #define TXD_USE_COUNT(S) DIV_ROUND_UP((S), IXGBE_MAX_DATA_PER_TXD)
 159 #define DESC_NEEDED ((MAX_SKB_FRAGS * TXD_USE_COUNT(PAGE_SIZE)) + 4)
 160
 161 /* wrapper around a pointer to a socket buffer,
 162  * so a DMA handle can be stored along with the buffer */
 163 struct ixgbe_tx_buffer {
 164         union ixgbe_adv_tx_desc *next_to_watch;
 165         unsigned long time_stamp;
 166         struct sk_buff *skb;
 167         unsigned int bytecount;
 168         unsigned short gso_segs;
 169         __be16 protocol;
 170         DEFINE_DMA_UNMAP_ADDR(dma);
 171         DEFINE_DMA_UNMAP_LEN(len);
 172         u32 tx_flags;
 173 };
 174
 175 struct ixgbe_rx_buffer {
 176         struct sk_buff *skb;
 177         dma_addr_t dma;
 178         struct page *page;
 179         unsigned int page_offset;
 180 };
 181
 182 struct ixgbe_queue_stats {
 183         u64 packets;
 184         u64 bytes;
 185 };
 186
 187 struct ixgbe_tx_queue_stats {
 188         u64 restart_queue;
 189         u64 tx_busy;
 190         u64 tx_done_old;
 191 };
 192
 193 struct ixgbe_rx_queue_stats {
 194         u64 rsc_count;
 195         u64 rsc_flush;
 196         u64 non_eop_descs;
 197         u64 alloc_rx_page_failed;
 198         u64 alloc_rx_buff_failed;
 199         u64 csum_err;
 200 };
 201
 202 enum ixgbe_ring_state_t {
 203         __IXGBE_TX_FDIR_INIT_DONE,
 204         __IXGBE_TX_DETECT_HANG,
 205         __IXGBE_HANG_CHECK_ARMED,
 206         __IXGBE_RX_RSC_ENABLED,
 207         __IXGBE_RX_CSUM_UDP_ZERO_ERR,
 208         __IXGBE_RX_FCOE,
 209 };
 210
 211 #define check_for_tx_hang(ring) \
 212         test_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
 213 #define set_check_for_tx_hang(ring) \
 214         set_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
 215 #define clear_check_for_tx_hang(ring) \
 216         clear_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
 217 #define ring_is_rsc_enabled(ring) \
 218         test_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
 219 #define set_ring_rsc_enabled(ring) \
 220         set_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
 221 #define clear_ring_rsc_enabled(ring) \
 222         clear_bit(__IXGBE_RX_RSC_ENABLED, &(ring)->state)
 223 struct ixgbe_ring {
 224         struct ixgbe_ring *next;        /* pointer to next ring in q_vector */
 225         struct ixgbe_q_vector *q_vector; /* backpointer to host q_vector */
 226         struct net_device *netdev;      /* netdev ring belongs to */
 227         struct device *dev;             /* device for DMA mapping */
 228         void *desc;                     /* descriptor ring memory */
 229         union {
 230                 struct ixgbe_tx_buffer *tx_buffer_info;
 231                 struct ixgbe_rx_buffer *rx_buffer_info;
 232         };
 233         unsigned long last_rx_timestamp;
 234         unsigned long state;
 235         u8 __iomem *tail;
 236         dma_addr_t dma;                 /* phys. address of descriptor ring */
 237         unsigned int size;              /* length in bytes */
 238
 239         u16 count;                      /* amount of descriptors */
 240
 241         u8 queue_index; /* needed for multiqueue queue management */
 242         u8 reg_idx;                     /* holds the special value that gets
 243                                          * the hardware register offset
 244                                          * associated with this ring, which is
 245                                          * different for DCB and RSS modes
 246                                          */
 247         u16 next_to_use;
 248         u16 next_to_clean;
 249
 250         union {
 251                 u16 next_to_alloc;
 252                 struct {
 253                         u8 atr_sample_rate;
 254                         u8 atr_count;
 255                 };
 256         };
 257
 258         u8 dcb_tc;
 259         struct ixgbe_queue_stats stats;
 260         struct u64_stats_sync syncp;
 261         union {
 262                 struct ixgbe_tx_queue_stats tx_stats;
 263                 struct ixgbe_rx_queue_stats rx_stats;
 264         };
 265 } ____cacheline_internodealigned_in_smp;
 266
 267 enum ixgbe_ring_f_enum {
 268         RING_F_NONE = 0,
 269         RING_F_VMDQ,  /* SR-IOV uses the same ring feature */
 270         RING_F_RSS,
 271         RING_F_FDIR,
 272 #ifdef IXGBE_FCOE
 273         RING_F_FCOE,
 274 #endif /* IXGBE_FCOE */
 275
 276         RING_F_ARRAY_SIZE      /* must be last in enum set */
 277 };
 278
 279 #define IXGBE_MAX_RSS_INDICES  16
 280 #define IXGBE_MAX_VMDQ_INDICES 64
 281 #define IXGBE_MAX_FDIR_INDICES 63       /* based on q_vector limit */
 282 #define IXGBE_MAX_FCOE_INDICES  8
 283 #define MAX_RX_QUEUES (IXGBE_MAX_FDIR_INDICES + 1)
 284 #define MAX_TX_QUEUES (IXGBE_MAX_FDIR_INDICES + 1)
 285 struct ixgbe_ring_feature {
 286         u16 limit;      /* upper limit on feature indices */
 287         u16 indices;    /* current value of indices */
 288         u16 mask;       /* Mask used for feature to ring mapping */
 289         u16 offset;     /* offset to start of feature */
 290 } ____cacheline_internodealigned_in_smp;
 291
 292 #define IXGBE_82599_VMDQ_8Q_MASK 0x78
 293 #define IXGBE_82599_VMDQ_4Q_MASK 0x7C
 294 #define IXGBE_82599_VMDQ_2Q_MASK 0x7E
 295
 296 /*
 297  * FCoE requires that all Rx buffers be over 2200 bytes in length.  Since
 298  * this is twice the size of a half page we need to double the page order
 299  * for FCoE enabled Rx queues.
 300  */
 301 static inline unsigned int ixgbe_rx_bufsz(struct ixgbe_ring *ring)
 302 {
 303 #ifdef IXGBE_FCOE
 304         if (test_bit(__IXGBE_RX_FCOE, &ring->state))
 305                 return (PAGE_SIZE < 8192) ? IXGBE_RXBUFFER_4K :
 306                                             IXGBE_RXBUFFER_3K;
 307 #endif
 308         return IXGBE_RXBUFFER_2K;
 309 }
 310
 311 static inline unsigned int ixgbe_rx_pg_order(struct ixgbe_ring *ring)
 312 {
 313 #ifdef IXGBE_FCOE
 314         if (test_bit(__IXGBE_RX_FCOE, &ring->state))
 315                 return (PAGE_SIZE < 8192) ? 1 : 0;
 316 #endif
 317         return 0;
 318 }
 319 #define ixgbe_rx_pg_size(_ring) (PAGE_SIZE << ixgbe_rx_pg_order(_ring))
 320
 321 struct ixgbe_ring_container {
 322         struct ixgbe_ring *ring;        /* pointer to linked list of rings */
 323         unsigned int total_bytes;       /* total bytes processed this int */
 324         unsigned int total_packets;     /* total packets processed this int */
 325         u16 work_limit;                 /* total work allowed per interrupt */
 326         u8 count;                       /* total number of rings in vector */
 327         u8 itr;                         /* current ITR setting for ring */
 328 };
 329
 330 /* iterator for handling rings in ring container */
 331 #define ixgbe_for_each_ring(pos, head) \
 332         for (pos = (head).ring; pos != NULL; pos = pos->next)
 333
 334 #define MAX_RX_PACKET_BUFFERS ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) \
 335                               ? 8 : 1)
 336 #define MAX_TX_PACKET_BUFFERS MAX_RX_PACKET_BUFFERS
 337
 338 /* MAX_Q_VECTORS of these are allocated,
 339  * but we only use one per queue-specific vector.
 340  */
 341 struct ixgbe_q_vector {
 342         struct ixgbe_adapter *adapter;
 343 #ifdef CONFIG_IXGBE_DCA
 344         int cpu;            /* CPU for DCA */
 345 #endif
 346         u16 v_idx;              /* index of q_vector within array, also used for
 347                                  * finding the bit in EICR and friends that
 348                                  * represents the vector for this ring */
 349         u16 itr;                /* Interrupt throttle rate written to EITR */
 350         struct ixgbe_ring_container rx, tx;
 351
 352         struct napi_struct napi;
 353         cpumask_t affinity_mask;
 354         int numa_node;
 355         struct rcu_head rcu;    /* to avoid race with update stats on free */
 356         char name[IFNAMSIZ + 9];
 357
 358         /* for dynamic allocation of rings associated with this q_vector */
 359         struct ixgbe_ring ring[0] ____cacheline_internodealigned_in_smp;
 360 };
 361 #ifdef CONFIG_IXGBE_HWMON
 362
 363 #define IXGBE_HWMON_TYPE_LOC            0
 364 #define IXGBE_HWMON_TYPE_TEMP           1
 365 #define IXGBE_HWMON_TYPE_CAUTION        2
 366 #define IXGBE_HWMON_TYPE_MAX            3
 367
 368 struct hwmon_attr {
 369         struct device_attribute dev_attr;
 370         struct ixgbe_hw *hw;
 371         struct ixgbe_thermal_diode_data *sensor;
 372         char name[12];
 373 };
 374
 375 struct hwmon_buff {
 376         struct device *device;
 377         struct hwmon_attr *hwmon_list;
 378         unsigned int n_hwmon;
 379 };
 380 #endif /* CONFIG_IXGBE_HWMON */
 381
 382 /*
 383  * microsecond values for various ITR rates shifted by 2 to fit itr register
 384  * with the first 3 bits reserved 0
 385  */
 386 #define IXGBE_MIN_RSC_ITR       24
 387 #define IXGBE_100K_ITR          40
 388 #define IXGBE_20K_ITR           200
 389 #define IXGBE_10K_ITR           400
 390 #define IXGBE_8K_ITR            500
 391
 392 /* ixgbe_test_staterr - tests bits in Rx descriptor status and error fields */
 393 static inline __le32 ixgbe_test_staterr(union ixgbe_adv_rx_desc *rx_desc,
 394                                         const u32 stat_err_bits)
 395 {
 396         return rx_desc->wb.upper.status_error & cpu_to_le32(stat_err_bits);
 397 }
 398
 399 static inline u16 ixgbe_desc_unused(struct ixgbe_ring *ring)
 400 {
 401         u16 ntc = ring->next_to_clean;
 402         u16 ntu = ring->next_to_use;
 403
 404         return ((ntc > ntu) ? 0 : ring->count) + ntc - ntu - 1;
 405 }
 406
 407 #define IXGBE_RX_DESC(R, i)         \
 408         (&(((union ixgbe_adv_rx_desc *)((R)->desc))[i]))
 409 #define IXGBE_TX_DESC(R, i)         \
 410         (&(((union ixgbe_adv_tx_desc *)((R)->desc))[i]))
 411 #define IXGBE_TX_CTXTDESC(R, i)     \
 412         (&(((struct ixgbe_adv_tx_context_desc *)((R)->desc))[i]))
 413
 414 #define IXGBE_MAX_JUMBO_FRAME_SIZE      9728 /* Maximum Supported Size 9.5KB */
 415 #ifdef IXGBE_FCOE
 416 /* Use 3K as the baby jumbo frame size for FCoE */
 417 #define IXGBE_FCOE_JUMBO_FRAME_SIZE       3072
 418 #endif /* IXGBE_FCOE */
 419
 420 #define OTHER_VECTOR 1
 421 #define NON_Q_VECTORS (OTHER_VECTOR)
 422
 423 #define MAX_MSIX_VECTORS_82599 64
 424 #define MAX_Q_VECTORS_82599 64
 425 #define MAX_MSIX_VECTORS_82598 18
 426 #define MAX_Q_VECTORS_82598 16
 427
 428 #define MAX_Q_VECTORS MAX_Q_VECTORS_82599
 429 #define MAX_MSIX_COUNT MAX_MSIX_VECTORS_82599
 430
 431 #define MIN_MSIX_Q_VECTORS 1
 432 #define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NON_Q_VECTORS)
 433
 434 /* default to trying for four seconds */
 435 #define IXGBE_TRY_LINK_TIMEOUT (4 * HZ)
 436
 437 /* board specific private data structure */
 438 struct ixgbe_adapter {
 439         unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
 440         /* OS defined structs */
 441         struct net_device *netdev;
 442         struct pci_dev *pdev;
 443
 444         unsigned long state;
 445
 446         /* Some features need tri-state capability,
 447          * thus the additional *_CAPABLE flags.
 448          */
 449         u32 flags;
 450 #define IXGBE_FLAG_MSI_CAPABLE                  (u32)(1 << 0)
 451 #define IXGBE_FLAG_MSI_ENABLED                  (u32)(1 << 1)
 452 #define IXGBE_FLAG_MSIX_CAPABLE                 (u32)(1 << 2)
 453 #define IXGBE_FLAG_MSIX_ENABLED                 (u32)(1 << 3)
 454 #define IXGBE_FLAG_RX_1BUF_CAPABLE              (u32)(1 << 4)
 455 #define IXGBE_FLAG_RX_PS_CAPABLE                (u32)(1 << 5)
 456 #define IXGBE_FLAG_RX_PS_ENABLED                (u32)(1 << 6)
 457 #define IXGBE_FLAG_IN_NETPOLL                   (u32)(1 << 7)
 458 #define IXGBE_FLAG_DCA_ENABLED                  (u32)(1 << 8)
 459 #define IXGBE_FLAG_DCA_CAPABLE                  (u32)(1 << 9)
 460 #define IXGBE_FLAG_IMIR_ENABLED                 (u32)(1 << 10)
 461 #define IXGBE_FLAG_MQ_CAPABLE                   (u32)(1 << 11)
 462 #define IXGBE_FLAG_DCB_ENABLED                  (u32)(1 << 12)
 463 #define IXGBE_FLAG_VMDQ_CAPABLE                 (u32)(1 << 13)
 464 #define IXGBE_FLAG_VMDQ_ENABLED                 (u32)(1 << 14)
 465 #define IXGBE_FLAG_FAN_FAIL_CAPABLE             (u32)(1 << 15)
 466 #define IXGBE_FLAG_NEED_LINK_UPDATE             (u32)(1 << 16)
 467 #define IXGBE_FLAG_NEED_LINK_CONFIG             (u32)(1 << 17)
 468 #define IXGBE_FLAG_FDIR_HASH_CAPABLE            (u32)(1 << 18)
 469 #define IXGBE_FLAG_FDIR_PERFECT_CAPABLE         (u32)(1 << 19)
 470 #define IXGBE_FLAG_FCOE_CAPABLE                 (u32)(1 << 20)
 471 #define IXGBE_FLAG_FCOE_ENABLED                 (u32)(1 << 21)
 472 #define IXGBE_FLAG_SRIOV_CAPABLE                (u32)(1 << 22)
 473 #define IXGBE_FLAG_SRIOV_ENABLED                (u32)(1 << 23)
 474
 475         u32 flags2;
 476 #define IXGBE_FLAG2_RSC_CAPABLE                 (u32)(1 << 0)
 477 #define IXGBE_FLAG2_RSC_ENABLED                 (u32)(1 << 1)
 478 #define IXGBE_FLAG2_TEMP_SENSOR_CAPABLE         (u32)(1 << 2)
 479 #define IXGBE_FLAG2_TEMP_SENSOR_EVENT           (u32)(1 << 3)
 480 #define IXGBE_FLAG2_SEARCH_FOR_SFP              (u32)(1 << 4)
 481 #define IXGBE_FLAG2_SFP_NEEDS_RESET             (u32)(1 << 5)
 482 #define IXGBE_FLAG2_RESET_REQUESTED             (u32)(1 << 6)
 483 #define IXGBE_FLAG2_FDIR_REQUIRES_REINIT        (u32)(1 << 7)
 484 #define IXGBE_FLAG2_RSS_FIELD_IPV4_UDP          (u32)(1 << 8)
 485 #define IXGBE_FLAG2_RSS_FIELD_IPV6_UDP          (u32)(1 << 9)
 486 #define IXGBE_FLAG2_PTP_ENABLED                 (u32)(1 << 10)
 487 #define IXGBE_FLAG2_PTP_PPS_ENABLED             (u32)(1 << 11)
 488 #define IXGBE_FLAG2_BRIDGE_MODE_VEB             (u32)(1 << 12)
 489
 490         /* Tx fast path data */
 491         int num_tx_queues;
 492         u16 tx_itr_setting;
 493         u16 tx_work_limit;
 494
 495         /* Rx fast path data */
 496         int num_rx_queues;
 497         u16 rx_itr_setting;
 498
 499         /* TX */
 500         struct ixgbe_ring *tx_ring[MAX_TX_QUEUES] ____cacheline_aligned_in_smp;
 501
 502         u64 restart_queue;
 503         u64 lsc_int;
 504         u32 tx_timeout_count;
 505
 506         /* RX */
 507         struct ixgbe_ring *rx_ring[MAX_RX_QUEUES];
 508         int num_rx_pools;               /* == num_rx_queues in 82598 */
 509         int num_rx_queues_per_pool;     /* 1 if 82598, can be many if 82599 */
 510         u64 hw_csum_rx_error;
 511         u64 hw_rx_no_dma_resources;
 512         u64 rsc_total_count;
 513         u64 rsc_total_flush;
 514         u64 non_eop_descs;
 515         u32 alloc_rx_page_failed;
 516         u32 alloc_rx_buff_failed;
 517
 518         struct ixgbe_q_vector *q_vector[MAX_Q_VECTORS];
 519
 520         /* DCB parameters */
 521         struct ieee_pfc *ixgbe_ieee_pfc;
 522         struct ieee_ets *ixgbe_ieee_ets;
 523         struct ixgbe_dcb_config dcb_cfg;
 524         struct ixgbe_dcb_config temp_dcb_cfg;
 525         u8 dcb_set_bitmap;
 526         u8 dcbx_cap;
 527         enum ixgbe_fc_mode last_lfc_mode;
 528
 529         int num_q_vectors;      /* current number of q_vectors for device */
 530         int max_q_vectors;      /* true count of q_vectors for device */
 531         struct ixgbe_ring_feature ring_feature[RING_F_ARRAY_SIZE];
 532         struct msix_entry *msix_entries;
 533
 534         u32 test_icr;
 535         struct ixgbe_ring test_tx_ring;
 536         struct ixgbe_ring test_rx_ring;
 537
 538         /* structs defined in ixgbe_hw.h */
 539         struct ixgbe_hw hw;
 540         u16 msg_enable;
 541         struct ixgbe_hw_stats stats;
 542
 543         u64 tx_busy;
 544         unsigned int tx_ring_count;
 545         unsigned int rx_ring_count;
 546
 547         u32 link_speed;
 548         bool link_up;
 549         unsigned long link_check_timeout;
 550
 551         struct timer_list service_timer;
 552         struct work_struct service_task;
 553
 554         struct hlist_head fdir_filter_list;
 555         unsigned long fdir_overflow; /* number of times ATR was backed off */
 556         union ixgbe_atr_input fdir_mask;
 557         int fdir_filter_count;
 558         u32 fdir_pballoc;
 559         u32 atr_sample_rate;
 560         spinlock_t fdir_perfect_lock;
 561
 562 #ifdef IXGBE_FCOE
 563         struct ixgbe_fcoe fcoe;
 564 #endif /* IXGBE_FCOE */
 565         u32 wol;
 566
 567         u16 bd_number;
 568
 569         u16 eeprom_verh;
 570         u16 eeprom_verl;
 571         u16 eeprom_cap;
 572
 573         u32 interrupt_event;
 574         u32 led_reg;
 575
 576         struct ptp_clock *ptp_clock;
 577         struct ptp_clock_info ptp_caps;
 578         struct work_struct ptp_tx_work;
 579         struct sk_buff *ptp_tx_skb;
 580         unsigned long ptp_tx_start;
 581         unsigned long last_overflow_check;
 582         unsigned long last_rx_ptp_check;
 583         spinlock_t tmreg_lock;
 584         struct cyclecounter cc;
 585         struct timecounter tc;
 586         u32 base_incval;
 587
 588         /* SR-IOV */
 589         DECLARE_BITMAP(active_vfs, IXGBE_MAX_VF_FUNCTIONS);
 590         unsigned int num_vfs;
 591         struct vf_data_storage *vfinfo;
 592         int vf_rate_link_speed;
 593         struct vf_macvlans vf_mvs;
 594         struct vf_macvlans *mv_list;
 595
 596         u32 timer_event_accumulator;
 597         u32 vferr_refcount;
 598         struct kobject *info_kobj;
 599 #ifdef CONFIG_IXGBE_HWMON
 600         struct hwmon_buff ixgbe_hwmon_buff;
 601 #endif /* CONFIG_IXGBE_HWMON */
 602 #ifdef CONFIG_DEBUG_FS
 603         struct dentry *ixgbe_dbg_adapter;
 604 #endif /*CONFIG_DEBUG_FS*/
 605
 606         u8 default_up;
 607 };
 608
 609 struct ixgbe_fdir_filter {
 610         struct hlist_node fdir_node;
 611         union ixgbe_atr_input filter;
 612         u16 sw_idx;
 613         u16 action;
 614 };
 615
 616 enum ixgbe_state_t {
 617         __IXGBE_TESTING,
 618         __IXGBE_RESETTING,
 619         __IXGBE_DOWN,
 620         __IXGBE_SERVICE_SCHED,
 621         __IXGBE_IN_SFP_INIT,
 622 };
 623
 624 struct ixgbe_cb {
 625         union {                         /* Union defining head/tail partner */
 626                 struct sk_buff *head;
 627                 struct sk_buff *tail;
 628         };
 629         dma_addr_t dma;
 630         u16 append_cnt;
 631         bool page_released;
 632 };
 633 #define IXGBE_CB(skb) ((struct ixgbe_cb *)(skb)->cb)
 634
 635 enum ixgbe_boards {
 636         board_82598,
 637         board_82599,
 638         board_X540,
 639 };
 640
 641 extern struct ixgbe_info ixgbe_82598_info;
 642 extern struct ixgbe_info ixgbe_82599_info;
 643 extern struct ixgbe_info ixgbe_X540_info;
 644 #ifdef CONFIG_IXGBE_DCB
 645 extern const struct dcbnl_rtnl_ops dcbnl_ops;
 646 #endif
 647
 648 extern char ixgbe_driver_name[];
 649 extern const char ixgbe_driver_version[];
 650 #ifdef IXGBE_FCOE
 651 extern char ixgbe_default_device_descr[];
 652 #endif /* IXGBE_FCOE */
 653
 654 extern void ixgbe_up(struct ixgbe_adapter *adapter);
 655 extern void ixgbe_down(struct ixgbe_adapter *adapter);
 656 extern void ixgbe_reinit_locked(struct ixgbe_adapter *adapter);
 657 extern void ixgbe_reset(struct ixgbe_adapter *adapter);
 658 extern void ixgbe_set_ethtool_ops(struct net_device *netdev);
 659 extern int ixgbe_setup_rx_resources(struct ixgbe_ring *);
 660 extern int ixgbe_setup_tx_resources(struct ixgbe_ring *);
 661 extern void ixgbe_free_rx_resources(struct ixgbe_ring *);
 662 extern void ixgbe_free_tx_resources(struct ixgbe_ring *);
 663 extern void ixgbe_configure_rx_ring(struct ixgbe_adapter *,struct ixgbe_ring *);
 664 extern void ixgbe_configure_tx_ring(struct ixgbe_adapter *,struct ixgbe_ring *);
 665 extern void ixgbe_disable_rx_queue(struct ixgbe_adapter *adapter,
 666                                    struct ixgbe_ring *);
 667 extern void ixgbe_update_stats(struct ixgbe_adapter *adapter);
 668 extern int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter);
 669 extern int ixgbe_wol_supported(struct ixgbe_adapter *adapter, u16 device_id,
 670                                u16 subdevice_id);
 671 extern void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter);
 672 extern netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *,
 673                                          struct ixgbe_adapter *,
 674                                          struct ixgbe_ring *);
 675 extern void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *,
 676                                              struct ixgbe_tx_buffer *);
 677 extern void ixgbe_alloc_rx_buffers(struct ixgbe_ring *, u16);
 678 extern void ixgbe_write_eitr(struct ixgbe_q_vector *);
 679 extern int ixgbe_poll(struct napi_struct *napi, int budget);
 680 extern int ethtool_ioctl(struct ifreq *ifr);
 681 extern s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw);
 682 extern s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl);
 683 extern s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl);
 684 extern s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
 685                                                  union ixgbe_atr_hash_dword input,
 686                                                  union ixgbe_atr_hash_dword common,
 687                                                  u8 queue);
 688 extern s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
 689                                            union ixgbe_atr_input *input_mask);
 690 extern s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
 691                                                  union ixgbe_atr_input *input,
 692                                                  u16 soft_id, u8 queue);
 693 extern s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
 694                                                  union ixgbe_atr_input *input,
 695                                                  u16 soft_id);
 696 extern void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
 697                                                  union ixgbe_atr_input *mask);
 698 extern bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw);
 699 extern void ixgbe_set_rx_mode(struct net_device *netdev);
 700 #ifdef CONFIG_IXGBE_DCB
 701 extern void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter);
 702 extern int ixgbe_setup_tc(struct net_device *dev, u8 tc);
 703 #endif
 704 extern void ixgbe_tx_ctxtdesc(struct ixgbe_ring *, u32, u32, u32, u32);
 705 extern void ixgbe_do_reset(struct net_device *netdev);
 706 #ifdef CONFIG_IXGBE_HWMON
 707 extern void ixgbe_sysfs_exit(struct ixgbe_adapter *adapter);
 708 extern int ixgbe_sysfs_init(struct ixgbe_adapter *adapter);
 709 #endif /* CONFIG_IXGBE_HWMON */
 710 #ifdef IXGBE_FCOE
 711 extern void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter);
 712 extern int ixgbe_fso(struct ixgbe_ring *tx_ring,
 713                      struct ixgbe_tx_buffer *first,
 714                      u8 *hdr_len);
 715 extern int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter,
 716                           union ixgbe_adv_rx_desc *rx_desc,
 717                           struct sk_buff *skb);
 718 extern int ixgbe_fcoe_ddp_get(struct net_device *netdev, u16 xid,
 719                               struct scatterlist *sgl, unsigned int sgc);
 720 extern int ixgbe_fcoe_ddp_target(struct net_device *netdev, u16 xid,
 721                                  struct scatterlist *sgl, unsigned int sgc);
 722 extern int ixgbe_fcoe_ddp_put(struct net_device *netdev, u16 xid);
 723 extern int ixgbe_setup_fcoe_ddp_resources(struct ixgbe_adapter *adapter);
 724 extern void ixgbe_free_fcoe_ddp_resources(struct ixgbe_adapter *adapter);
 725 extern int ixgbe_fcoe_enable(struct net_device *netdev);
 726 extern int ixgbe_fcoe_disable(struct net_device *netdev);
 727 #ifdef CONFIG_IXGBE_DCB
 728 extern u8 ixgbe_fcoe_getapp(struct ixgbe_adapter *adapter);
 729 extern u8 ixgbe_fcoe_setapp(struct ixgbe_adapter *adapter, u8 up);
 730 #endif /* CONFIG_IXGBE_DCB */
 731 extern int ixgbe_fcoe_get_wwn(struct net_device *netdev, u64 *wwn, int type);
 732 extern int ixgbe_fcoe_get_hbainfo(struct net_device *netdev,
 733                                   struct netdev_fcoe_hbainfo *info);
 734 extern u8 ixgbe_fcoe_get_tc(struct ixgbe_adapter *adapter);
 735 #endif /* IXGBE_FCOE */
 736 #ifdef CONFIG_DEBUG_FS
 737 extern void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter);
 738 extern void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter);
 739 extern void ixgbe_dbg_init(void);
 740 extern void ixgbe_dbg_exit(void);
 741 #endif /* CONFIG_DEBUG_FS */
 742 static inline struct netdev_queue *txring_txq(const struct ixgbe_ring *ring)
 743 {
 744         return netdev_get_tx_queue(ring->netdev, ring->queue_index);
 745 }
 746
 747 extern void ixgbe_ptp_init(struct ixgbe_adapter *adapter);
 748 extern void ixgbe_ptp_stop(struct ixgbe_adapter *adapter);
 749 extern void ixgbe_ptp_overflow_check(struct ixgbe_adapter *adapter);
 750 extern void ixgbe_ptp_rx_hang(struct ixgbe_adapter *adapter);
 751 extern void __ixgbe_ptp_rx_hwtstamp(struct ixgbe_q_vector *q_vector,
 752                                     struct sk_buff *skb);
 753 static inline void ixgbe_ptp_rx_hwtstamp(struct ixgbe_ring *rx_ring,
 754                                          union ixgbe_adv_rx_desc *rx_desc,
 755                                          struct sk_buff *skb)
 756 {
 757         if (unlikely(!ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_STAT_TS)))
 758                 return;
 759
 760         __ixgbe_ptp_rx_hwtstamp(rx_ring->q_vector, skb);
 761
 762         /*
 763          * Update the last_rx_timestamp timer in order to enable watchdog check
 764          * for error case of latched timestamp on a dropped packet.
 765          */
 766         rx_ring->last_rx_timestamp = jiffies;
 767 }
 768
 769 extern int ixgbe_ptp_hwtstamp_ioctl(struct ixgbe_adapter *adapter,
 770                                     struct ifreq *ifr, int cmd);
 771 extern void ixgbe_ptp_start_cyclecounter(struct ixgbe_adapter *adapter);
 772 extern void ixgbe_ptp_reset(struct ixgbe_adapter *adapter);
 773 extern void ixgbe_ptp_check_pps_event(struct ixgbe_adapter *adapter, u32 eicr);
 774 #ifdef CONFIG_PCI_IOV
 775 void ixgbe_sriov_reinit(struct ixgbe_adapter *adapter);
 776 #endif
 777
 778 #endif /* _IXGBE_H_ */