drivers/net/ixgbe/ixgbe.h

   1 /*******************************************************************************
   2
   3   Intel 10 Gigabit PCI Express Linux driver
   4   Copyright(c) 1999 - 2010 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/types.h>
  32 #include <linux/pci.h>
  33 #include <linux/netdevice.h>
  34 #include <linux/aer.h>
  35
  36 #include "ixgbe_type.h"
  37 #include "ixgbe_common.h"
  38 #include "ixgbe_dcb.h"
  39 #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
  40 #define IXGBE_FCOE
  41 #include "ixgbe_fcoe.h"
  42 #endif /* CONFIG_FCOE or CONFIG_FCOE_MODULE */
  43 #ifdef CONFIG_IXGBE_DCA
  44 #include <linux/dca.h>
  45 #endif
  46
  47 #define PFX "ixgbe: "
  48 #define DPRINTK(nlevel, klevel, fmt, args...) \
  49         ((void)((NETIF_MSG_##nlevel & adapter->msg_enable) && \
  50         printk(KERN_##klevel PFX "%s: %s: " fmt, adapter->netdev->name, \
  51                 __func__ , ## args)))
  52
  53 /* TX/RX descriptor defines */
  54 #define IXGBE_DEFAULT_TXD                   512
  55 #define IXGBE_MAX_TXD                      4096
  56 #define IXGBE_MIN_TXD                        64
  57
  58 #define IXGBE_DEFAULT_RXD                   512
  59 #define IXGBE_MAX_RXD                      4096
  60 #define IXGBE_MIN_RXD                        64
  61
  62 /* flow control */
  63 #define IXGBE_DEFAULT_FCRTL             0x10000
  64 #define IXGBE_MIN_FCRTL                    0x40
  65 #define IXGBE_MAX_FCRTL                 0x7FF80
  66 #define IXGBE_DEFAULT_FCRTH             0x20000
  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_64    64     /* Used for packet split */
  75 #define IXGBE_RXBUFFER_128   128    /* Used for packet split */
  76 #define IXGBE_RXBUFFER_256   256    /* Used for packet split */
  77 #define IXGBE_RXBUFFER_2048  2048
  78 #define IXGBE_RXBUFFER_4096  4096
  79 #define IXGBE_RXBUFFER_8192  8192
  80 #define IXGBE_MAX_RXBUFFER   16384  /* largest size for a single descriptor */
  81
  82 #define IXGBE_RX_HDR_SIZE IXGBE_RXBUFFER_256
  83
  84 #define MAXIMUM_ETHERNET_VLAN_SIZE (ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN)
  85
  86 /* How many Rx Buffers do we bundle into one write to the hardware ? */
  87 #define IXGBE_RX_BUFFER_WRITE   16      /* Must be power of 2 */
  88
  89 #define IXGBE_TX_FLAGS_CSUM             (u32)(1)
  90 #define IXGBE_TX_FLAGS_VLAN             (u32)(1 << 1)
  91 #define IXGBE_TX_FLAGS_TSO              (u32)(1 << 2)
  92 #define IXGBE_TX_FLAGS_IPV4             (u32)(1 << 3)
  93 #define IXGBE_TX_FLAGS_FCOE             (u32)(1 << 4)
  94 #define IXGBE_TX_FLAGS_FSO              (u32)(1 << 5)
  95 #define IXGBE_TX_FLAGS_VLAN_MASK        0xffff0000
  96 #define IXGBE_TX_FLAGS_VLAN_PRIO_MASK   0x0000e000
  97 #define IXGBE_TX_FLAGS_VLAN_SHIFT       16
  98
  99 #define IXGBE_MAX_RSC_INT_RATE          162760
 100
 101 #define IXGBE_MAX_VF_MC_ENTRIES         30
 102 #define IXGBE_MAX_VF_FUNCTIONS          64
 103 #define IXGBE_MAX_VFTA_ENTRIES          128
 104 #define MAX_EMULATION_MAC_ADDRS         16
 105 #define VMDQ_P(p)   ((p) + adapter->num_vfs)
 106
 107 struct vf_data_storage {
 108         unsigned char vf_mac_addresses[ETH_ALEN];
 109         u16 vf_mc_hashes[IXGBE_MAX_VF_MC_ENTRIES];
 110         u16 num_vf_mc_hashes;
 111         u16 default_vf_vlan_id;
 112         u16 vlans_enabled;
 113         bool clear_to_send;
 114         int rar;
 115 };
 116
 117 /* wrapper around a pointer to a socket buffer,
 118  * so a DMA handle can be stored along with the buffer */
 119 struct ixgbe_tx_buffer {
 120         struct sk_buff *skb;
 121         dma_addr_t dma;
 122         unsigned long time_stamp;
 123         u16 length;
 124         u16 next_to_watch;
 125         u16 mapped_as_page;
 126 };
 127
 128 struct ixgbe_rx_buffer {
 129         struct sk_buff *skb;
 130         dma_addr_t dma;
 131         struct page *page;
 132         dma_addr_t page_dma;
 133         unsigned int page_offset;
 134 };
 135
 136 struct ixgbe_queue_stats {
 137         u64 packets;
 138         u64 bytes;
 139 };
 140
 141 struct ixgbe_ring {
 142         void *desc;                     /* descriptor ring memory */
 143         union {
 144                 struct ixgbe_tx_buffer *tx_buffer_info;
 145                 struct ixgbe_rx_buffer *rx_buffer_info;
 146         };
 147         u8 atr_sample_rate;
 148         u8 atr_count;
 149         u16 count;                      /* amount of descriptors */
 150         u16 rx_buf_len;
 151         u16 next_to_use;
 152         u16 next_to_clean;
 153
 154         u8 queue_index; /* needed for multiqueue queue management */
 155
 156 #define IXGBE_RING_RX_PS_ENABLED                (u8)(1)
 157         u8 flags;                       /* per ring feature flags */
 158         u16 head;
 159         u16 tail;
 160
 161         unsigned int total_bytes;
 162         unsigned int total_packets;
 163
 164 #ifdef CONFIG_IXGBE_DCA
 165         /* cpu for tx queue */
 166         int cpu;
 167 #endif
 168
 169         u16 work_limit;                 /* max work per interrupt */
 170         u16 reg_idx;                    /* holds the special value that gets
 171                                          * the hardware register offset
 172                                          * associated with this ring, which is
 173                                          * different for DCB and RSS modes
 174                                          */
 175
 176         struct ixgbe_queue_stats stats;
 177         unsigned long reinit_state;
 178         int numa_node;
 179         u64 rsc_count;                  /* stat for coalesced packets */
 180         u64 rsc_flush;                  /* stats for flushed packets */
 181         u32 restart_queue;              /* track tx queue restarts */
 182         u32 non_eop_descs;              /* track hardware descriptor chaining */
 183
 184         unsigned int size;              /* length in bytes */
 185         dma_addr_t dma;                 /* phys. address of descriptor ring */
 186 } ____cacheline_internodealigned_in_smp;
 187
 188 enum ixgbe_ring_f_enum {
 189         RING_F_NONE = 0,
 190         RING_F_DCB,
 191         RING_F_VMDQ,  /* SR-IOV uses the same ring feature */
 192         RING_F_RSS,
 193         RING_F_FDIR,
 194 #ifdef IXGBE_FCOE
 195         RING_F_FCOE,
 196 #endif /* IXGBE_FCOE */
 197
 198         RING_F_ARRAY_SIZE      /* must be last in enum set */
 199 };
 200
 201 #define IXGBE_MAX_DCB_INDICES   8
 202 #define IXGBE_MAX_RSS_INDICES  16
 203 #define IXGBE_MAX_VMDQ_INDICES 64
 204 #define IXGBE_MAX_FDIR_INDICES 64
 205 #ifdef IXGBE_FCOE
 206 #define IXGBE_MAX_FCOE_INDICES  8
 207 #endif /* IXGBE_FCOE */
 208 struct ixgbe_ring_feature {
 209         int indices;
 210         int mask;
 211 } ____cacheline_internodealigned_in_smp;
 212
 213 #define MAX_RX_QUEUES 128
 214 #define MAX_TX_QUEUES 128
 215
 216 #define MAX_RX_PACKET_BUFFERS ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) \
 217                               ? 8 : 1)
 218 #define MAX_TX_PACKET_BUFFERS MAX_RX_PACKET_BUFFERS
 219
 220 /* MAX_MSIX_Q_VECTORS of these are allocated,
 221  * but we only use one per queue-specific vector.
 222  */
 223 struct ixgbe_q_vector {
 224         struct ixgbe_adapter *adapter;
 225         unsigned int v_idx; /* index of q_vector within array, also used for
 226                              * finding the bit in EICR and friends that
 227                              * represents the vector for this ring */
 228         struct napi_struct napi;
 229         DECLARE_BITMAP(rxr_idx, MAX_RX_QUEUES); /* Rx ring indices */
 230         DECLARE_BITMAP(txr_idx, MAX_TX_QUEUES); /* Tx ring indices */
 231         u8 rxr_count;     /* Rx ring count assigned to this vector */
 232         u8 txr_count;     /* Tx ring count assigned to this vector */
 233         u8 tx_itr;
 234         u8 rx_itr;
 235         u32 eitr;
 236 };
 237
 238 /* Helper macros to switch between ints/sec and what the register uses.
 239  * And yes, it's the same math going both ways.  The lowest value
 240  * supported by all of the ixgbe hardware is 8.
 241  */
 242 #define EITR_INTS_PER_SEC_TO_REG(_eitr) \
 243         ((_eitr) ? (1000000000 / ((_eitr) * 256)) : 8)
 244 #define EITR_REG_TO_INTS_PER_SEC EITR_INTS_PER_SEC_TO_REG
 245
 246 #define IXGBE_DESC_UNUSED(R) \
 247         ((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
 248         (R)->next_to_clean - (R)->next_to_use - 1)
 249
 250 #define IXGBE_RX_DESC_ADV(R, i)     \
 251         (&(((union ixgbe_adv_rx_desc *)((R).desc))[i]))
 252 #define IXGBE_TX_DESC_ADV(R, i)     \
 253         (&(((union ixgbe_adv_tx_desc *)((R).desc))[i]))
 254 #define IXGBE_TX_CTXTDESC_ADV(R, i)         \
 255         (&(((struct ixgbe_adv_tx_context_desc *)((R).desc))[i]))
 256
 257 #define IXGBE_MAX_JUMBO_FRAME_SIZE        16128
 258 #ifdef IXGBE_FCOE
 259 /* Use 3K as the baby jumbo frame size for FCoE */
 260 #define IXGBE_FCOE_JUMBO_FRAME_SIZE       3072
 261 #endif /* IXGBE_FCOE */
 262
 263 #define OTHER_VECTOR 1
 264 #define NON_Q_VECTORS (OTHER_VECTOR)
 265
 266 #define MAX_MSIX_VECTORS_82599 64
 267 #define MAX_MSIX_Q_VECTORS_82599 64
 268 #define MAX_MSIX_VECTORS_82598 18
 269 #define MAX_MSIX_Q_VECTORS_82598 16
 270
 271 #define MAX_MSIX_Q_VECTORS MAX_MSIX_Q_VECTORS_82599
 272 #define MAX_MSIX_COUNT MAX_MSIX_VECTORS_82599
 273
 274 #define MIN_MSIX_Q_VECTORS 2
 275 #define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NON_Q_VECTORS)
 276
 277 /* board specific private data structure */
 278 struct ixgbe_adapter {
 279         struct timer_list watchdog_timer;
 280         struct vlan_group *vlgrp;
 281         u16 bd_number;
 282         struct work_struct reset_task;
 283         struct ixgbe_q_vector *q_vector[MAX_MSIX_Q_VECTORS];
 284         char name[MAX_MSIX_COUNT][IFNAMSIZ + 9];
 285         struct ixgbe_dcb_config dcb_cfg;
 286         struct ixgbe_dcb_config temp_dcb_cfg;
 287         u8 dcb_set_bitmap;
 288         enum ixgbe_fc_mode last_lfc_mode;
 289
 290         /* Interrupt Throttle Rate */
 291         u32 rx_itr_setting;
 292         u32 tx_itr_setting;
 293         u16 eitr_low;
 294         u16 eitr_high;
 295
 296         /* TX */
 297         struct ixgbe_ring *tx_ring[MAX_TX_QUEUES] ____cacheline_aligned_in_smp;
 298         int num_tx_queues;
 299         u32 tx_timeout_count;
 300         bool detect_tx_hung;
 301
 302         u64 restart_queue;
 303         u64 lsc_int;
 304
 305         /* RX */
 306         struct ixgbe_ring *rx_ring[MAX_RX_QUEUES] ____cacheline_aligned_in_smp;
 307         int num_rx_queues;
 308         int num_rx_pools;               /* == num_rx_queues in 82598 */
 309         int num_rx_queues_per_pool;     /* 1 if 82598, can be many if 82599 */
 310         u64 hw_csum_rx_error;
 311         u64 hw_rx_no_dma_resources;
 312         u64 non_eop_descs;
 313         int num_msix_vectors;
 314         int max_msix_q_vectors;         /* true count of q_vectors for device */
 315         struct ixgbe_ring_feature ring_feature[RING_F_ARRAY_SIZE];
 316         struct msix_entry *msix_entries;
 317
 318         u32 alloc_rx_page_failed;
 319         u32 alloc_rx_buff_failed;
 320
 321         /* Some features need tri-state capability,
 322          * thus the additional *_CAPABLE flags.
 323          */
 324         u32 flags;
 325 #define IXGBE_FLAG_RX_CSUM_ENABLED              (u32)(1)
 326 #define IXGBE_FLAG_MSI_CAPABLE                  (u32)(1 << 1)
 327 #define IXGBE_FLAG_MSI_ENABLED                  (u32)(1 << 2)
 328 #define IXGBE_FLAG_MSIX_CAPABLE                 (u32)(1 << 3)
 329 #define IXGBE_FLAG_MSIX_ENABLED                 (u32)(1 << 4)
 330 #define IXGBE_FLAG_RX_1BUF_CAPABLE              (u32)(1 << 6)
 331 #define IXGBE_FLAG_RX_PS_CAPABLE                (u32)(1 << 7)
 332 #define IXGBE_FLAG_RX_PS_ENABLED                (u32)(1 << 8)
 333 #define IXGBE_FLAG_IN_NETPOLL                   (u32)(1 << 9)
 334 #define IXGBE_FLAG_DCA_ENABLED                  (u32)(1 << 10)
 335 #define IXGBE_FLAG_DCA_CAPABLE                  (u32)(1 << 11)
 336 #define IXGBE_FLAG_IMIR_ENABLED                 (u32)(1 << 12)
 337 #define IXGBE_FLAG_MQ_CAPABLE                   (u32)(1 << 13)
 338 #define IXGBE_FLAG_DCB_ENABLED                  (u32)(1 << 14)
 339 #define IXGBE_FLAG_RSS_ENABLED                  (u32)(1 << 16)
 340 #define IXGBE_FLAG_RSS_CAPABLE                  (u32)(1 << 17)
 341 #define IXGBE_FLAG_VMDQ_CAPABLE                 (u32)(1 << 18)
 342 #define IXGBE_FLAG_VMDQ_ENABLED                 (u32)(1 << 19)
 343 #define IXGBE_FLAG_FAN_FAIL_CAPABLE             (u32)(1 << 20)
 344 #define IXGBE_FLAG_NEED_LINK_UPDATE             (u32)(1 << 22)
 345 #define IXGBE_FLAG_IN_SFP_LINK_TASK             (u32)(1 << 23)
 346 #define IXGBE_FLAG_IN_SFP_MOD_TASK              (u32)(1 << 24)
 347 #define IXGBE_FLAG_FDIR_HASH_CAPABLE            (u32)(1 << 25)
 348 #define IXGBE_FLAG_FDIR_PERFECT_CAPABLE         (u32)(1 << 26)
 349 #define IXGBE_FLAG_FCOE_CAPABLE                 (u32)(1 << 27)
 350 #define IXGBE_FLAG_FCOE_ENABLED                 (u32)(1 << 28)
 351 #define IXGBE_FLAG_SRIOV_CAPABLE                (u32)(1 << 29)
 352 #define IXGBE_FLAG_SRIOV_ENABLED                (u32)(1 << 30)
 353
 354         u32 flags2;
 355 #define IXGBE_FLAG2_RSC_CAPABLE                 (u32)(1)
 356 #define IXGBE_FLAG2_RSC_ENABLED                 (u32)(1 << 1)
 357 /* default to trying for four seconds */
 358 #define IXGBE_TRY_LINK_TIMEOUT (4 * HZ)
 359
 360         /* OS defined structs */
 361         struct net_device *netdev;
 362         struct pci_dev *pdev;
 363
 364         u32 test_icr;
 365         struct ixgbe_ring test_tx_ring;
 366         struct ixgbe_ring test_rx_ring;
 367
 368         /* structs defined in ixgbe_hw.h */
 369         struct ixgbe_hw hw;
 370         u16 msg_enable;
 371         struct ixgbe_hw_stats stats;
 372
 373         /* Interrupt Throttle Rate */
 374         u32 rx_eitr_param;
 375         u32 tx_eitr_param;
 376
 377         unsigned long state;
 378         u64 tx_busy;
 379         unsigned int tx_ring_count;
 380         unsigned int rx_ring_count;
 381
 382         u32 link_speed;
 383         bool link_up;
 384         unsigned long link_check_timeout;
 385
 386         struct work_struct watchdog_task;
 387         struct work_struct sfp_task;
 388         struct timer_list sfp_timer;
 389         struct work_struct multispeed_fiber_task;
 390         struct work_struct sfp_config_module_task;
 391         u32 fdir_pballoc;
 392         u32 atr_sample_rate;
 393         spinlock_t fdir_perfect_lock;
 394         struct work_struct fdir_reinit_task;
 395 #ifdef IXGBE_FCOE
 396         struct ixgbe_fcoe fcoe;
 397 #endif /* IXGBE_FCOE */
 398         u64 rsc_total_count;
 399         u64 rsc_total_flush;
 400         u32 wol;
 401         u16 eeprom_version;
 402
 403         int node;
 404
 405         /* SR-IOV */
 406         DECLARE_BITMAP(active_vfs, IXGBE_MAX_VF_FUNCTIONS);
 407         unsigned int num_vfs;
 408         struct vf_data_storage *vfinfo;
 409 };
 410
 411 enum ixbge_state_t {
 412         __IXGBE_TESTING,
 413         __IXGBE_RESETTING,
 414         __IXGBE_DOWN,
 415         __IXGBE_FDIR_INIT_DONE,
 416         __IXGBE_SFP_MODULE_NOT_FOUND
 417 };
 418
 419 enum ixgbe_boards {
 420         board_82598,
 421         board_82599,
 422 };
 423
 424 extern struct ixgbe_info ixgbe_82598_info;
 425 extern struct ixgbe_info ixgbe_82599_info;
 426 #ifdef CONFIG_IXGBE_DCB
 427 extern const struct dcbnl_rtnl_ops dcbnl_ops;
 428 extern int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg,
 429                               struct ixgbe_dcb_config *dst_dcb_cfg,
 430                               int tc_max);
 431 #endif
 432
 433 extern char ixgbe_driver_name[];
 434 extern const char ixgbe_driver_version[];
 435
 436 extern int ixgbe_up(struct ixgbe_adapter *adapter);
 437 extern void ixgbe_down(struct ixgbe_adapter *adapter);
 438 extern void ixgbe_reinit_locked(struct ixgbe_adapter *adapter);
 439 extern void ixgbe_reset(struct ixgbe_adapter *adapter);
 440 extern void ixgbe_set_ethtool_ops(struct net_device *netdev);
 441 extern int ixgbe_setup_rx_resources(struct ixgbe_adapter *, struct ixgbe_ring *);
 442 extern int ixgbe_setup_tx_resources(struct ixgbe_adapter *, struct ixgbe_ring *);
 443 extern void ixgbe_free_rx_resources(struct ixgbe_adapter *, struct ixgbe_ring *);
 444 extern void ixgbe_free_tx_resources(struct ixgbe_adapter *, struct ixgbe_ring *);
 445 extern void ixgbe_update_stats(struct ixgbe_adapter *adapter);
 446 extern int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter);
 447 extern void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter);
 448 extern void ixgbe_write_eitr(struct ixgbe_q_vector *);
 449 extern int ethtool_ioctl(struct ifreq *ifr);
 450 extern s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw);
 451 extern s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 pballoc);
 452 extern s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 pballoc);
 453 extern s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
 454                                                  struct ixgbe_atr_input *input,
 455                                                  u8 queue);
 456 extern s32 ixgbe_fdir_add_perfect_filter_82599(struct ixgbe_hw *hw,
 457                                       struct ixgbe_atr_input *input,
 458                                       struct ixgbe_atr_input_masks *input_masks,
 459                                       u16 soft_id, u8 queue);
 460 extern s32 ixgbe_atr_set_vlan_id_82599(struct ixgbe_atr_input *input,
 461                                        u16 vlan_id);
 462 extern s32 ixgbe_atr_set_src_ipv4_82599(struct ixgbe_atr_input *input,
 463                                         u32 src_addr);
 464 extern s32 ixgbe_atr_set_dst_ipv4_82599(struct ixgbe_atr_input *input,
 465                                         u32 dst_addr);
 466 extern s32 ixgbe_atr_set_src_port_82599(struct ixgbe_atr_input *input,
 467                                         u16 src_port);
 468 extern s32 ixgbe_atr_set_dst_port_82599(struct ixgbe_atr_input *input,
 469                                         u16 dst_port);
 470 extern s32 ixgbe_atr_set_flex_byte_82599(struct ixgbe_atr_input *input,
 471                                          u16 flex_byte);
 472 extern s32 ixgbe_atr_set_l4type_82599(struct ixgbe_atr_input *input,
 473                                       u8 l4type);
 474 extern void ixgbe_set_rx_mode(struct net_device *netdev);
 475 #ifdef IXGBE_FCOE
 476 extern void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter);
 477 extern int ixgbe_fso(struct ixgbe_adapter *adapter,
 478                      struct ixgbe_ring *tx_ring, struct sk_buff *skb,
 479                      u32 tx_flags, u8 *hdr_len);
 480 extern void ixgbe_cleanup_fcoe(struct ixgbe_adapter *adapter);
 481 extern int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter,
 482                           union ixgbe_adv_rx_desc *rx_desc,
 483                           struct sk_buff *skb);
 484 extern int ixgbe_fcoe_ddp_get(struct net_device *netdev, u16 xid,
 485                               struct scatterlist *sgl, unsigned int sgc);
 486 extern int ixgbe_fcoe_ddp_put(struct net_device *netdev, u16 xid);
 487 extern int ixgbe_fcoe_enable(struct net_device *netdev);
 488 extern int ixgbe_fcoe_disable(struct net_device *netdev);
 489 #ifdef CONFIG_IXGBE_DCB
 490 extern u8 ixgbe_fcoe_getapp(struct ixgbe_adapter *adapter);
 491 extern u8 ixgbe_fcoe_setapp(struct ixgbe_adapter *adapter, u8 up);
 492 #endif /* CONFIG_IXGBE_DCB */
 493 extern int ixgbe_fcoe_get_wwn(struct net_device *netdev, u64 *wwn, int type);
 494 #endif /* IXGBE_FCOE */
 495
 496 #endif /* _IXGBE_H_ */