drivers/net/ethernet/intel/fm10k/fm10k.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /* Copyright(c) 2013 - 2019 Intel Corporation. */
   3
   4 #ifndef _FM10K_H_
   5 #define _FM10K_H_
   6
   7 #include <linux/types.h>
   8 #include <linux/etherdevice.h>
   9 #include <linux/cpumask.h>
  10 #include <linux/rtnetlink.h>
  11 #include <linux/if_vlan.h>
  12 #include <linux/pci.h>
  13
  14 #include "fm10k_pf.h"
  15 #include "fm10k_vf.h"
  16
  17 #define FM10K_MAX_JUMBO_FRAME_SIZE      15342   /* Maximum supported size 15K */
  18
  19 #define MAX_QUEUES      FM10K_MAX_QUEUES_PF
  20
  21 #define FM10K_MIN_RXD            128
  22 #define FM10K_MAX_RXD           4096
  23 #define FM10K_DEFAULT_RXD        256
  24
  25 #define FM10K_MIN_TXD            128
  26 #define FM10K_MAX_TXD           4096
  27 #define FM10K_DEFAULT_TXD        256
  28 #define FM10K_DEFAULT_TX_WORK    256
  29
  30 #define FM10K_RXBUFFER_256        256
  31 #define FM10K_RX_HDR_LEN        FM10K_RXBUFFER_256
  32 #define FM10K_RXBUFFER_2048      2048
  33 #define FM10K_RX_BUFSZ          FM10K_RXBUFFER_2048
  34
  35 /* How many Rx Buffers do we bundle into one write to the hardware ? */
  36 #define FM10K_RX_BUFFER_WRITE   16      /* Must be power of 2 */
  37
  38 #define FM10K_MAX_STATIONS      63
  39 struct fm10k_l2_accel {
  40         int size;
  41         u16 count;
  42         u16 dglort;
  43         struct rcu_head rcu;
  44         struct net_device *macvlan[];
  45 };
  46
  47 enum fm10k_ring_state_t {
  48         __FM10K_TX_DETECT_HANG,
  49         __FM10K_HANG_CHECK_ARMED,
  50         __FM10K_TX_XPS_INIT_DONE,
  51         /* This must be last and is used to calculate BITMAP size */
  52         __FM10K_TX_STATE_SIZE__,
  53 };
  54
  55 #define check_for_tx_hang(ring) \
  56         test_bit(__FM10K_TX_DETECT_HANG, (ring)->state)
  57 #define set_check_for_tx_hang(ring) \
  58         set_bit(__FM10K_TX_DETECT_HANG, (ring)->state)
  59 #define clear_check_for_tx_hang(ring) \
  60         clear_bit(__FM10K_TX_DETECT_HANG, (ring)->state)
  61
  62 struct fm10k_tx_buffer {
  63         struct fm10k_tx_desc *next_to_watch;
  64         struct sk_buff *skb;
  65         unsigned int bytecount;
  66         u16 gso_segs;
  67         u16 tx_flags;
  68         DEFINE_DMA_UNMAP_ADDR(dma);
  69         DEFINE_DMA_UNMAP_LEN(len);
  70 };
  71
  72 struct fm10k_rx_buffer {
  73         dma_addr_t dma;
  74         struct page *page;
  75         u32 page_offset;
  76 };
  77
  78 struct fm10k_queue_stats {
  79         u64 packets;
  80         u64 bytes;
  81 };
  82
  83 struct fm10k_tx_queue_stats {
  84         u64 restart_queue;
  85         u64 csum_err;
  86         u64 tx_busy;
  87         u64 tx_done_old;
  88         u64 csum_good;
  89 };
  90
  91 struct fm10k_rx_queue_stats {
  92         u64 alloc_failed;
  93         u64 csum_err;
  94         u64 errors;
  95         u64 csum_good;
  96         u64 switch_errors;
  97         u64 drops;
  98         u64 pp_errors;
  99         u64 link_errors;
 100         u64 length_errors;
 101 };
 102
 103 struct fm10k_ring {
 104         struct fm10k_q_vector *q_vector;/* backpointer to host q_vector */
 105         struct net_device *netdev;      /* netdev ring belongs to */
 106         struct device *dev;             /* device for DMA mapping */
 107         struct fm10k_l2_accel __rcu *l2_accel;  /* L2 acceleration list */
 108         void *desc;                     /* descriptor ring memory */
 109         union {
 110                 struct fm10k_tx_buffer *tx_buffer;
 111                 struct fm10k_rx_buffer *rx_buffer;
 112         };
 113         u32 __iomem *tail;
 114         DECLARE_BITMAP(state, __FM10K_TX_STATE_SIZE__);
 115         dma_addr_t dma;                 /* phys. address of descriptor ring */
 116         unsigned int size;              /* length in bytes */
 117
 118         u8 queue_index;                 /* needed for queue management */
 119         u8 reg_idx;                     /* holds the special value that gets
 120                                          * the hardware register offset
 121                                          * associated with this ring, which is
 122                                          * different for DCB and RSS modes
 123                                          */
 124         u8 qos_pc;                      /* priority class of queue */
 125         u16 vid;                        /* default VLAN ID of queue */
 126         u16 count;                      /* amount of descriptors */
 127
 128         u16 next_to_alloc;
 129         u16 next_to_use;
 130         u16 next_to_clean;
 131
 132         struct fm10k_queue_stats stats;
 133         struct u64_stats_sync syncp;
 134         union {
 135                 /* Tx */
 136                 struct fm10k_tx_queue_stats tx_stats;
 137                 /* Rx */
 138                 struct {
 139                         struct fm10k_rx_queue_stats rx_stats;
 140                         struct sk_buff *skb;
 141                 };
 142         };
 143 } ____cacheline_internodealigned_in_smp;
 144
 145 struct fm10k_ring_container {
 146         struct fm10k_ring *ring;        /* pointer to linked list of rings */
 147         unsigned int total_bytes;       /* total bytes processed this int */
 148         unsigned int total_packets;     /* total packets processed this int */
 149         u16 work_limit;                 /* total work allowed per interrupt */
 150         u16 itr;                        /* interrupt throttle rate value */
 151         u8 itr_scale;                   /* ITR adjustment based on PCI speed */
 152         u8 count;                       /* total number of rings in vector */
 153 };
 154
 155 #define FM10K_ITR_MAX           0x0FFF  /* maximum value for ITR */
 156 #define FM10K_ITR_10K           100     /* 100us */
 157 #define FM10K_ITR_20K           50      /* 50us */
 158 #define FM10K_ITR_40K           25      /* 25us */
 159 #define FM10K_ITR_ADAPTIVE      0x8000  /* adaptive interrupt moderation flag */
 160
 161 #define ITR_IS_ADAPTIVE(itr) (!!(itr & FM10K_ITR_ADAPTIVE))
 162
 163 #define FM10K_TX_ITR_DEFAULT    FM10K_ITR_40K
 164 #define FM10K_RX_ITR_DEFAULT    FM10K_ITR_20K
 165 #define FM10K_ITR_ENABLE        (FM10K_ITR_AUTOMASK | FM10K_ITR_MASK_CLEAR)
 166
 167 static inline struct netdev_queue *txring_txq(const struct fm10k_ring *ring)
 168 {
 169         return &ring->netdev->_tx[ring->queue_index];
 170 }
 171
 172 /* iterator for handling rings in ring container */
 173 #define fm10k_for_each_ring(pos, head) \
 174         for (pos = &(head).ring[(head).count]; (--pos) >= (head).ring;)
 175
 176 #define MAX_Q_VECTORS 256
 177 #define MIN_Q_VECTORS   1
 178 enum fm10k_non_q_vectors {
 179         FM10K_MBX_VECTOR,
 180         NON_Q_VECTORS
 181 };
 182
 183 #define MIN_MSIX_COUNT(hw)      (MIN_Q_VECTORS + NON_Q_VECTORS)
 184
 185 struct fm10k_q_vector {
 186         struct fm10k_intfc *interface;
 187         u32 __iomem *itr;       /* pointer to ITR register for this vector */
 188         u16 v_idx;              /* index of q_vector within interface array */
 189         struct fm10k_ring_container rx, tx;
 190
 191         struct napi_struct napi;
 192         cpumask_t affinity_mask;
 193         char name[IFNAMSIZ + 9];
 194
 195 #ifdef CONFIG_DEBUG_FS
 196         struct dentry *dbg_q_vector;
 197 #endif /* CONFIG_DEBUG_FS */
 198         struct rcu_head rcu;    /* to avoid race with update stats on free */
 199
 200         /* for dynamic allocation of rings associated with this q_vector */
 201         struct fm10k_ring ring[] ____cacheline_internodealigned_in_smp;
 202 };
 203
 204 enum fm10k_ring_f_enum {
 205         RING_F_RSS,
 206         RING_F_QOS,
 207         RING_F_ARRAY_SIZE  /* must be last in enum set */
 208 };
 209
 210 struct fm10k_ring_feature {
 211         u16 limit;      /* upper limit on feature indices */
 212         u16 indices;    /* current value of indices */
 213         u16 mask;       /* Mask used for feature to ring mapping */
 214         u16 offset;     /* offset to start of feature */
 215 };
 216
 217 struct fm10k_iov_data {
 218         unsigned int            num_vfs;
 219         unsigned int            next_vf_mbx;
 220         struct rcu_head         rcu;
 221         struct fm10k_vf_info    vf_info[];
 222 };
 223
 224 struct fm10k_udp_port {
 225         struct list_head        list;
 226         sa_family_t             sa_family;
 227         __be16                  port;
 228 };
 229
 230 enum fm10k_macvlan_request_type {
 231         FM10K_UC_MAC_REQUEST,
 232         FM10K_MC_MAC_REQUEST,
 233         FM10K_VLAN_REQUEST
 234 };
 235
 236 struct fm10k_macvlan_request {
 237         enum fm10k_macvlan_request_type type;
 238         struct list_head list;
 239         union {
 240                 struct fm10k_mac_request {
 241                         u8 addr[ETH_ALEN];
 242                         u16 glort;
 243                         u16 vid;
 244                 } mac;
 245                 struct fm10k_vlan_request {
 246                         u32 vid;
 247                         u8 vsi;
 248                 } vlan;
 249         };
 250         bool set;
 251 };
 252
 253 /* one work queue for entire driver */
 254 extern struct workqueue_struct *fm10k_workqueue;
 255
 256 /* The following enumeration contains flags which indicate or enable modified
 257  * driver behaviors. To avoid race conditions, the flags are stored in
 258  * a BITMAP in the fm10k_intfc structure. The BITMAP should be accessed using
 259  * atomic *_bit() operations.
 260  */
 261 enum fm10k_flags_t {
 262         FM10K_FLAG_RESET_REQUESTED,
 263         FM10K_FLAG_RSS_FIELD_IPV4_UDP,
 264         FM10K_FLAG_RSS_FIELD_IPV6_UDP,
 265         FM10K_FLAG_SWPRI_CONFIG,
 266         /* __FM10K_FLAGS_SIZE__ is used to calculate the size of
 267          * interface->flags and must be the last value in this
 268          * enumeration.
 269          */
 270         __FM10K_FLAGS_SIZE__
 271 };
 272
 273 enum fm10k_state_t {
 274         __FM10K_RESETTING,
 275         __FM10K_RESET_DETACHED,
 276         __FM10K_RESET_SUSPENDED,
 277         __FM10K_DOWN,
 278         __FM10K_SERVICE_SCHED,
 279         __FM10K_SERVICE_REQUEST,
 280         __FM10K_SERVICE_DISABLE,
 281         __FM10K_MACVLAN_SCHED,
 282         __FM10K_MACVLAN_REQUEST,
 283         __FM10K_MACVLAN_DISABLE,
 284         __FM10K_LINK_DOWN,
 285         __FM10K_UPDATING_STATS,
 286         /* This value must be last and determines the BITMAP size */
 287         __FM10K_STATE_SIZE__,
 288 };
 289
 290 struct fm10k_intfc {
 291         unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
 292         struct net_device *netdev;
 293         struct fm10k_l2_accel *l2_accel; /* pointer to L2 acceleration list */
 294         struct pci_dev *pdev;
 295         DECLARE_BITMAP(state, __FM10K_STATE_SIZE__);
 296
 297         /* Access flag values using atomic *_bit() operations */
 298         DECLARE_BITMAP(flags, __FM10K_FLAGS_SIZE__);
 299
 300         int xcast_mode;
 301
 302         /* Tx fast path data */
 303         int num_tx_queues;
 304         u16 tx_itr;
 305
 306         /* Rx fast path data */
 307         int num_rx_queues;
 308         u16 rx_itr;
 309
 310         /* TX */
 311         struct fm10k_ring *tx_ring[MAX_QUEUES] ____cacheline_aligned_in_smp;
 312
 313         u64 restart_queue;
 314         u64 tx_busy;
 315         u64 tx_csum_errors;
 316         u64 alloc_failed;
 317         u64 rx_csum_errors;
 318
 319         u64 tx_bytes_nic;
 320         u64 tx_packets_nic;
 321         u64 rx_bytes_nic;
 322         u64 rx_packets_nic;
 323         u64 rx_drops_nic;
 324         u64 rx_overrun_pf;
 325         u64 rx_overrun_vf;
 326
 327         /* Debug Statistics */
 328         u64 hw_sm_mbx_full;
 329         u64 hw_csum_tx_good;
 330         u64 hw_csum_rx_good;
 331         u64 rx_switch_errors;
 332         u64 rx_drops;
 333         u64 rx_pp_errors;
 334         u64 rx_link_errors;
 335         u64 rx_length_errors;
 336
 337         u32 tx_timeout_count;
 338
 339         /* RX */
 340         struct fm10k_ring *rx_ring[MAX_QUEUES];
 341
 342         /* Queueing vectors */
 343         struct fm10k_q_vector *q_vector[MAX_Q_VECTORS];
 344         struct msix_entry *msix_entries;
 345         int num_q_vectors;      /* current number of q_vectors for device */
 346         struct fm10k_ring_feature ring_feature[RING_F_ARRAY_SIZE];
 347
 348         /* SR-IOV information management structure */
 349         struct fm10k_iov_data *iov_data;
 350
 351         struct fm10k_hw_stats stats;
 352         struct fm10k_hw hw;
 353         /* Mailbox lock */
 354         spinlock_t mbx_lock;
 355         u32 __iomem *uc_addr;
 356         u32 __iomem *sw_addr;
 357         u16 msg_enable;
 358         u16 tx_ring_count;
 359         u16 rx_ring_count;
 360         struct timer_list service_timer;
 361         struct work_struct service_task;
 362         unsigned long next_stats_update;
 363         unsigned long next_tx_hang_check;
 364         unsigned long last_reset;
 365         unsigned long link_down_event;
 366         bool host_ready;
 367         bool lport_map_failed;
 368
 369         u32 reta[FM10K_RETA_SIZE];
 370         u32 rssrk[FM10K_RSSRK_SIZE];
 371
 372         /* UDP encapsulation port tracking information */
 373         struct list_head vxlan_port;
 374         struct list_head geneve_port;
 375
 376         /* MAC/VLAN update queue */
 377         struct list_head macvlan_requests;
 378         struct delayed_work macvlan_task;
 379         /* MAC/VLAN update queue lock */
 380         spinlock_t macvlan_lock;
 381
 382 #ifdef CONFIG_DEBUG_FS
 383         struct dentry *dbg_intfc;
 384 #endif /* CONFIG_DEBUG_FS */
 385
 386 #ifdef CONFIG_DCB
 387         u8 pfc_en;
 388 #endif
 389         u8 rx_pause;
 390
 391         /* GLORT resources in use by PF */
 392         u16 glort;
 393         u16 glort_count;
 394
 395         /* VLAN ID for updating multicast/unicast lists */
 396         u16 vid;
 397 };
 398
 399 static inline void fm10k_mbx_lock(struct fm10k_intfc *interface)
 400 {
 401         spin_lock(&interface->mbx_lock);
 402 }
 403
 404 static inline void fm10k_mbx_unlock(struct fm10k_intfc *interface)
 405 {
 406         spin_unlock(&interface->mbx_lock);
 407 }
 408
 409 static inline int fm10k_mbx_trylock(struct fm10k_intfc *interface)
 410 {
 411         return spin_trylock(&interface->mbx_lock);
 412 }
 413
 414 /* fm10k_test_staterr - test bits in Rx descriptor status and error fields */
 415 static inline __le32 fm10k_test_staterr(union fm10k_rx_desc *rx_desc,
 416                                         const u32 stat_err_bits)
 417 {
 418         return rx_desc->d.staterr & cpu_to_le32(stat_err_bits);
 419 }
 420
 421 /* fm10k_desc_unused - calculate if we have unused descriptors */
 422 static inline u16 fm10k_desc_unused(struct fm10k_ring *ring)
 423 {
 424         s16 unused = ring->next_to_clean - ring->next_to_use - 1;
 425
 426         return likely(unused < 0) ? unused + ring->count : unused;
 427 }
 428
 429 #define FM10K_TX_DESC(R, i)     \
 430         (&(((struct fm10k_tx_desc *)((R)->desc))[i]))
 431 #define FM10K_RX_DESC(R, i)     \
 432          (&(((union fm10k_rx_desc *)((R)->desc))[i]))
 433
 434 #define FM10K_MAX_TXD_PWR       14
 435 #define FM10K_MAX_DATA_PER_TXD  (1u << FM10K_MAX_TXD_PWR)
 436
 437 /* Tx Descriptors needed, worst case */
 438 #define TXD_USE_COUNT(S)        DIV_ROUND_UP((S), FM10K_MAX_DATA_PER_TXD)
 439 #define DESC_NEEDED     (MAX_SKB_FRAGS + 4)
 440
 441 enum fm10k_tx_flags {
 442         /* Tx offload flags */
 443         FM10K_TX_FLAGS_CSUM     = 0x01,
 444 };
 445
 446 /* This structure is stored as little endian values as that is the native
 447  * format of the Rx descriptor.  The ordering of these fields is reversed
 448  * from the actual ftag header to allow for a single bswap to take care
 449  * of placing all of the values in network order
 450  */
 451 union fm10k_ftag_info {
 452         __le64 ftag;
 453         struct {
 454                 /* dglort and sglort combined into a single 32bit desc read */
 455                 __le32 glort;
 456                 /* upper 16 bits of VLAN are reserved 0 for swpri_type_user */
 457                 __le32 vlan;
 458         } d;
 459         struct {
 460                 __le16 dglort;
 461                 __le16 sglort;
 462                 __le16 vlan;
 463                 __le16 swpri_type_user;
 464         } w;
 465 };
 466
 467 struct fm10k_cb {
 468         union {
 469                 __le64 tstamp;
 470                 unsigned long ts_tx_timeout;
 471         };
 472         union fm10k_ftag_info fi;
 473 };
 474
 475 #define FM10K_CB(skb) ((struct fm10k_cb *)(skb)->cb)
 476
 477 /* main */
 478 extern char fm10k_driver_name[];
 479 extern const char fm10k_driver_version[];
 480 int fm10k_init_queueing_scheme(struct fm10k_intfc *interface);
 481 void fm10k_clear_queueing_scheme(struct fm10k_intfc *interface);
 482 __be16 fm10k_tx_encap_offload(struct sk_buff *skb);
 483 netdev_tx_t fm10k_xmit_frame_ring(struct sk_buff *skb,
 484                                   struct fm10k_ring *tx_ring);
 485 void fm10k_tx_timeout_reset(struct fm10k_intfc *interface);
 486 u64 fm10k_get_tx_pending(struct fm10k_ring *ring, bool in_sw);
 487 bool fm10k_check_tx_hang(struct fm10k_ring *tx_ring);
 488 void fm10k_alloc_rx_buffers(struct fm10k_ring *rx_ring, u16 cleaned_count);
 489
 490 /* PCI */
 491 void fm10k_mbx_free_irq(struct fm10k_intfc *);
 492 int fm10k_mbx_request_irq(struct fm10k_intfc *);
 493 void fm10k_qv_free_irq(struct fm10k_intfc *interface);
 494 int fm10k_qv_request_irq(struct fm10k_intfc *interface);
 495 int fm10k_register_pci_driver(void);
 496 void fm10k_unregister_pci_driver(void);
 497 void fm10k_up(struct fm10k_intfc *interface);
 498 void fm10k_down(struct fm10k_intfc *interface);
 499 void fm10k_update_stats(struct fm10k_intfc *interface);
 500 void fm10k_service_event_schedule(struct fm10k_intfc *interface);
 501 void fm10k_macvlan_schedule(struct fm10k_intfc *interface);
 502 void fm10k_update_rx_drop_en(struct fm10k_intfc *interface);
 503
 504 /* Netdev */
 505 struct net_device *fm10k_alloc_netdev(const struct fm10k_info *info);
 506 int fm10k_setup_rx_resources(struct fm10k_ring *);
 507 int fm10k_setup_tx_resources(struct fm10k_ring *);
 508 void fm10k_free_rx_resources(struct fm10k_ring *);
 509 void fm10k_free_tx_resources(struct fm10k_ring *);
 510 void fm10k_clean_all_rx_rings(struct fm10k_intfc *);
 511 void fm10k_clean_all_tx_rings(struct fm10k_intfc *);
 512 void fm10k_unmap_and_free_tx_resource(struct fm10k_ring *,
 513                                       struct fm10k_tx_buffer *);
 514 void fm10k_restore_rx_state(struct fm10k_intfc *);
 515 void fm10k_reset_rx_state(struct fm10k_intfc *);
 516 int fm10k_setup_tc(struct net_device *dev, u8 tc);
 517 int fm10k_open(struct net_device *netdev);
 518 int fm10k_close(struct net_device *netdev);
 519 int fm10k_queue_vlan_request(struct fm10k_intfc *interface, u32 vid,
 520                              u8 vsi, bool set);
 521 int fm10k_queue_mac_request(struct fm10k_intfc *interface, u16 glort,
 522                             const unsigned char *addr, u16 vid, bool set);
 523 void fm10k_clear_macvlan_queue(struct fm10k_intfc *interface,
 524                                u16 glort, bool vlans);
 525
 526 /* Ethtool */
 527 void fm10k_set_ethtool_ops(struct net_device *dev);
 528 void fm10k_write_reta(struct fm10k_intfc *interface, const u32 *indir);
 529
 530 /* IOV */
 531 s32 fm10k_iov_event(struct fm10k_intfc *interface);
 532 s32 fm10k_iov_mbx(struct fm10k_intfc *interface);
 533 void fm10k_iov_suspend(struct pci_dev *pdev);
 534 int fm10k_iov_resume(struct pci_dev *pdev);
 535 void fm10k_iov_disable(struct pci_dev *pdev);
 536 int fm10k_iov_configure(struct pci_dev *pdev, int num_vfs);
 537 void fm10k_iov_update_stats(struct fm10k_intfc *interface);
 538 s32 fm10k_iov_update_pvid(struct fm10k_intfc *interface, u16 glort, u16 pvid);
 539 int fm10k_ndo_set_vf_mac(struct net_device *netdev, int vf_idx, u8 *mac);
 540 int fm10k_ndo_set_vf_vlan(struct net_device *netdev,
 541                           int vf_idx, u16 vid, u8 qos, __be16 vlan_proto);
 542 int fm10k_ndo_set_vf_bw(struct net_device *netdev, int vf_idx,
 543                         int __always_unused min_rate, int max_rate);
 544 int fm10k_ndo_get_vf_config(struct net_device *netdev,
 545                             int vf_idx, struct ifla_vf_info *ivi);
 546 int fm10k_ndo_get_vf_stats(struct net_device *netdev,
 547                            int vf_idx, struct ifla_vf_stats *stats);
 548
 549 /* DebugFS */
 550 #ifdef CONFIG_DEBUG_FS
 551 void fm10k_dbg_q_vector_init(struct fm10k_q_vector *q_vector);
 552 void fm10k_dbg_q_vector_exit(struct fm10k_q_vector *q_vector);
 553 void fm10k_dbg_intfc_init(struct fm10k_intfc *interface);
 554 void fm10k_dbg_intfc_exit(struct fm10k_intfc *interface);
 555 void fm10k_dbg_init(void);
 556 void fm10k_dbg_exit(void);
 557 #else
 558 static inline void fm10k_dbg_q_vector_init(struct fm10k_q_vector *q_vector) {}
 559 static inline void fm10k_dbg_q_vector_exit(struct fm10k_q_vector *q_vector) {}
 560 static inline void fm10k_dbg_intfc_init(struct fm10k_intfc *interface) {}
 561 static inline void fm10k_dbg_intfc_exit(struct fm10k_intfc *interface) {}
 562 static inline void fm10k_dbg_init(void) {}
 563 static inline void fm10k_dbg_exit(void) {}
 564 #endif /* CONFIG_DEBUG_FS */
 565
 566 /* DCB */
 567 #ifdef CONFIG_DCB
 568 void fm10k_dcbnl_set_ops(struct net_device *dev);
 569 #else
 570 static inline void fm10k_dcbnl_set_ops(struct net_device *dev) {}
 571 #endif
 572 #endif /* _FM10K_H_ */