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

   1 /* Intel Ethernet Switch Host Interface Driver
   2  * Copyright(c) 2013 - 2015 Intel Corporation.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms and conditions of the GNU General Public License,
   6  * version 2, as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  11  * more details.
  12  *
  13  * The full GNU General Public License is included in this distribution in
  14  * the file called "COPYING".
  15  *
  16  * Contact Information:
  17  * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  18  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  19  */
  20
  21 #ifndef _FM10K_H_
  22 #define _FM10K_H_
  23
  24 #include <linux/types.h>
  25 #include <linux/etherdevice.h>
  26 #include <linux/rtnetlink.h>
  27 #include <linux/if_vlan.h>
  28 #include <linux/pci.h>
  29 #include <linux/net_tstamp.h>
  30 #include <linux/clocksource.h>
  31 #include <linux/ptp_clock_kernel.h>
  32
  33 #include "fm10k_pf.h"
  34 #include "fm10k_vf.h"
  35
  36 #define FM10K_MAX_JUMBO_FRAME_SIZE      15358   /* Maximum supported size 15K */
  37
  38 #define MAX_QUEUES      FM10K_MAX_QUEUES_PF
  39
  40 #define FM10K_MIN_RXD            128
  41 #define FM10K_MAX_RXD           4096
  42 #define FM10K_DEFAULT_RXD        256
  43
  44 #define FM10K_MIN_TXD            128
  45 #define FM10K_MAX_TXD           4096
  46 #define FM10K_DEFAULT_TXD        256
  47 #define FM10K_DEFAULT_TX_WORK    256
  48
  49 #define FM10K_RXBUFFER_256        256
  50 #define FM10K_RX_HDR_LEN        FM10K_RXBUFFER_256
  51 #define FM10K_RXBUFFER_2048      2048
  52 #define FM10K_RX_BUFSZ          FM10K_RXBUFFER_2048
  53
  54 /* How many Rx Buffers do we bundle into one write to the hardware ? */
  55 #define FM10K_RX_BUFFER_WRITE   16      /* Must be power of 2 */
  56
  57 #define FM10K_MAX_STATIONS      63
  58 struct fm10k_l2_accel {
  59         int size;
  60         u16 count;
  61         u16 dglort;
  62         struct rcu_head rcu;
  63         struct net_device *macvlan[0];
  64 };
  65
  66 enum fm10k_ring_state_t {
  67         __FM10K_TX_DETECT_HANG,
  68         __FM10K_HANG_CHECK_ARMED,
  69 };
  70
  71 #define check_for_tx_hang(ring) \
  72         test_bit(__FM10K_TX_DETECT_HANG, &(ring)->state)
  73 #define set_check_for_tx_hang(ring) \
  74         set_bit(__FM10K_TX_DETECT_HANG, &(ring)->state)
  75 #define clear_check_for_tx_hang(ring) \
  76         clear_bit(__FM10K_TX_DETECT_HANG, &(ring)->state)
  77
  78 struct fm10k_tx_buffer {
  79         struct fm10k_tx_desc *next_to_watch;
  80         struct sk_buff *skb;
  81         unsigned int bytecount;
  82         u16 gso_segs;
  83         u16 tx_flags;
  84         DEFINE_DMA_UNMAP_ADDR(dma);
  85         DEFINE_DMA_UNMAP_LEN(len);
  86 };
  87
  88 struct fm10k_rx_buffer {
  89         dma_addr_t dma;
  90         struct page *page;
  91         u32 page_offset;
  92 };
  93
  94 struct fm10k_queue_stats {
  95         u64 packets;
  96         u64 bytes;
  97 };
  98
  99 struct fm10k_tx_queue_stats {
 100         u64 restart_queue;
 101         u64 csum_err;
 102         u64 tx_busy;
 103         u64 tx_done_old;
 104         u64 csum_good;
 105 };
 106
 107 struct fm10k_rx_queue_stats {
 108         u64 alloc_failed;
 109         u64 csum_err;
 110         u64 errors;
 111         u64 csum_good;
 112         u64 switch_errors;
 113         u64 drops;
 114         u64 pp_errors;
 115         u64 link_errors;
 116         u64 length_errors;
 117 };
 118
 119 struct fm10k_ring {
 120         struct fm10k_q_vector *q_vector;/* backpointer to host q_vector */
 121         struct net_device *netdev;      /* netdev ring belongs to */
 122         struct device *dev;             /* device for DMA mapping */
 123         struct fm10k_l2_accel __rcu *l2_accel;  /* L2 acceleration list */
 124         void *desc;                     /* descriptor ring memory */
 125         union {
 126                 struct fm10k_tx_buffer *tx_buffer;
 127                 struct fm10k_rx_buffer *rx_buffer;
 128         };
 129         u32 __iomem *tail;
 130         unsigned long state;
 131         dma_addr_t dma;                 /* phys. address of descriptor ring */
 132         unsigned int size;              /* length in bytes */
 133
 134         u8 queue_index;                 /* needed for queue management */
 135         u8 reg_idx;                     /* holds the special value that gets
 136                                          * the hardware register offset
 137                                          * associated with this ring, which is
 138                                          * different for DCB and RSS modes
 139                                          */
 140         u8 qos_pc;                      /* priority class of queue */
 141         u16 vid;                        /* default vlan ID of queue */
 142         u16 count;                      /* amount of descriptors */
 143
 144         u16 next_to_alloc;
 145         u16 next_to_use;
 146         u16 next_to_clean;
 147
 148         struct fm10k_queue_stats stats;
 149         struct u64_stats_sync syncp;
 150         union {
 151                 /* Tx */
 152                 struct fm10k_tx_queue_stats tx_stats;
 153                 /* Rx */
 154                 struct {
 155                         struct fm10k_rx_queue_stats rx_stats;
 156                         struct sk_buff *skb;
 157                 };
 158         };
 159 } ____cacheline_internodealigned_in_smp;
 160
 161 struct fm10k_ring_container {
 162         struct fm10k_ring *ring;        /* pointer to linked list of rings */
 163         unsigned int total_bytes;       /* total bytes processed this int */
 164         unsigned int total_packets;     /* total packets processed this int */
 165         u16 work_limit;                 /* total work allowed per interrupt */
 166         u16 itr;                        /* interrupt throttle rate value */
 167         u8 count;                       /* total number of rings in vector */
 168 };
 169
 170 #define FM10K_ITR_MAX           0x0FFF  /* maximum value for ITR */
 171 #define FM10K_ITR_10K           100     /* 100us */
 172 #define FM10K_ITR_20K           50      /* 50us */
 173 #define FM10K_ITR_ADAPTIVE      0x8000  /* adaptive interrupt moderation flag */
 174
 175 #define FM10K_ITR_ENABLE        (FM10K_ITR_AUTOMASK | FM10K_ITR_MASK_CLEAR)
 176
 177 static inline struct netdev_queue *txring_txq(const struct fm10k_ring *ring)
 178 {
 179         return &ring->netdev->_tx[ring->queue_index];
 180 }
 181
 182 /* iterator for handling rings in ring container */
 183 #define fm10k_for_each_ring(pos, head) \
 184         for (pos = &(head).ring[(head).count]; (--pos) >= (head).ring;)
 185
 186 #define MAX_Q_VECTORS 256
 187 #define MIN_Q_VECTORS   1
 188 enum fm10k_non_q_vectors {
 189         FM10K_MBX_VECTOR,
 190 #define NON_Q_VECTORS_VF NON_Q_VECTORS_PF
 191         NON_Q_VECTORS_PF
 192 };
 193
 194 #define NON_Q_VECTORS(hw)       (((hw)->mac.type == fm10k_mac_pf) ? \
 195                                                 NON_Q_VECTORS_PF : \
 196                                                 NON_Q_VECTORS_VF)
 197 #define MIN_MSIX_COUNT(hw)      (MIN_Q_VECTORS + NON_Q_VECTORS(hw))
 198
 199 struct fm10k_q_vector {
 200         struct fm10k_intfc *interface;
 201         u32 __iomem *itr;       /* pointer to ITR register for this vector */
 202         u16 v_idx;              /* index of q_vector within interface array */
 203         struct fm10k_ring_container rx, tx;
 204
 205         struct napi_struct napi;
 206         char name[IFNAMSIZ + 9];
 207
 208 #ifdef CONFIG_DEBUG_FS
 209         struct dentry *dbg_q_vector;
 210 #endif /* CONFIG_DEBUG_FS */
 211         struct rcu_head rcu;    /* to avoid race with update stats on free */
 212
 213         /* for dynamic allocation of rings associated with this q_vector */
 214         struct fm10k_ring ring[0] ____cacheline_internodealigned_in_smp;
 215 };
 216
 217 enum fm10k_ring_f_enum {
 218         RING_F_RSS,
 219         RING_F_QOS,
 220         RING_F_ARRAY_SIZE  /* must be last in enum set */
 221 };
 222
 223 struct fm10k_ring_feature {
 224         u16 limit;      /* upper limit on feature indices */
 225         u16 indices;    /* current value of indices */
 226         u16 mask;       /* Mask used for feature to ring mapping */
 227         u16 offset;     /* offset to start of feature */
 228 };
 229
 230 struct fm10k_iov_data {
 231         unsigned int            num_vfs;
 232         unsigned int            next_vf_mbx;
 233         struct rcu_head         rcu;
 234         struct fm10k_vf_info    vf_info[0];
 235 };
 236
 237 #define fm10k_vxlan_port_for_each(vp, intfc) \
 238         list_for_each_entry(vp, &(intfc)->vxlan_port, list)
 239 struct fm10k_vxlan_port {
 240         struct list_head        list;
 241         sa_family_t             sa_family;
 242         __be16                  port;
 243 };
 244
 245 /* one work queue for entire driver */
 246 extern struct workqueue_struct *fm10k_workqueue;
 247
 248 struct fm10k_intfc {
 249         unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
 250         struct net_device *netdev;
 251         struct fm10k_l2_accel *l2_accel; /* pointer to L2 acceleration list */
 252         struct pci_dev *pdev;
 253         unsigned long state;
 254
 255         u32 flags;
 256 #define FM10K_FLAG_RESET_REQUESTED              (u32)(1 << 0)
 257 #define FM10K_FLAG_RSS_FIELD_IPV4_UDP           (u32)(1 << 1)
 258 #define FM10K_FLAG_RSS_FIELD_IPV6_UDP           (u32)(1 << 2)
 259 #define FM10K_FLAG_RX_TS_ENABLED                (u32)(1 << 3)
 260 #define FM10K_FLAG_SWPRI_CONFIG                 (u32)(1 << 4)
 261 #define FM10K_FLAG_DEBUG_STATS                  (u32)(1 << 5)
 262         int xcast_mode;
 263
 264         /* Tx fast path data */
 265         int num_tx_queues;
 266         u16 tx_itr;
 267
 268         /* Rx fast path data */
 269         int num_rx_queues;
 270         u16 rx_itr;
 271
 272         /* TX */
 273         struct fm10k_ring *tx_ring[MAX_QUEUES] ____cacheline_aligned_in_smp;
 274
 275         u64 restart_queue;
 276         u64 tx_busy;
 277         u64 tx_csum_errors;
 278         u64 alloc_failed;
 279         u64 rx_csum_errors;
 280
 281         u64 tx_bytes_nic;
 282         u64 tx_packets_nic;
 283         u64 rx_bytes_nic;
 284         u64 rx_packets_nic;
 285         u64 rx_drops_nic;
 286         u64 rx_overrun_pf;
 287         u64 rx_overrun_vf;
 288
 289         /* Debug Statistics */
 290         u64 hw_sm_mbx_full;
 291         u64 hw_csum_tx_good;
 292         u64 hw_csum_rx_good;
 293         u64 rx_switch_errors;
 294         u64 rx_drops;
 295         u64 rx_pp_errors;
 296         u64 rx_link_errors;
 297         u64 rx_length_errors;
 298
 299         u32 tx_timeout_count;
 300
 301         /* RX */
 302         struct fm10k_ring *rx_ring[MAX_QUEUES];
 303
 304         /* Queueing vectors */
 305         struct fm10k_q_vector *q_vector[MAX_Q_VECTORS];
 306         struct msix_entry *msix_entries;
 307         int num_q_vectors;      /* current number of q_vectors for device */
 308         struct fm10k_ring_feature ring_feature[RING_F_ARRAY_SIZE];
 309
 310         /* SR-IOV information management structure */
 311         struct fm10k_iov_data *iov_data;
 312
 313         struct fm10k_hw_stats stats;
 314         struct fm10k_hw hw;
 315         u32 __iomem *uc_addr;
 316         u32 __iomem *sw_addr;
 317         u16 msg_enable;
 318         u16 tx_ring_count;
 319         u16 rx_ring_count;
 320         struct timer_list service_timer;
 321         struct work_struct service_task;
 322         unsigned long next_stats_update;
 323         unsigned long next_tx_hang_check;
 324         unsigned long last_reset;
 325         unsigned long link_down_event;
 326         bool host_ready;
 327
 328         u32 reta[FM10K_RETA_SIZE];
 329         u32 rssrk[FM10K_RSSRK_SIZE];
 330
 331         /* VXLAN port tracking information */
 332         struct list_head vxlan_port;
 333
 334 #ifdef CONFIG_DEBUG_FS
 335         struct dentry *dbg_intfc;
 336
 337 #endif /* CONFIG_DEBUG_FS */
 338         struct ptp_clock_info ptp_caps;
 339         struct ptp_clock *ptp_clock;
 340
 341         struct sk_buff_head ts_tx_skb_queue;
 342         u32 tx_hwtstamp_timeouts;
 343
 344         struct hwtstamp_config ts_config;
 345         /* We are unable to actually adjust the clock beyond the frequency
 346          * value.  Once the clock is started there is no resetting it.  As
 347          * such we maintain a separate offset from the actual hardware clock
 348          * to allow for offset adjustment.
 349          */
 350         s64 ptp_adjust;
 351         rwlock_t systime_lock;
 352 #ifdef CONFIG_DCB
 353         u8 pfc_en;
 354 #endif
 355         u8 rx_pause;
 356
 357         /* GLORT resources in use by PF */
 358         u16 glort;
 359         u16 glort_count;
 360
 361         /* VLAN ID for updating multicast/unicast lists */
 362         u16 vid;
 363 };
 364
 365 enum fm10k_state_t {
 366         __FM10K_RESETTING,
 367         __FM10K_DOWN,
 368         __FM10K_SERVICE_SCHED,
 369         __FM10K_SERVICE_DISABLE,
 370         __FM10K_MBX_LOCK,
 371         __FM10K_LINK_DOWN,
 372 };
 373
 374 static inline void fm10k_mbx_lock(struct fm10k_intfc *interface)
 375 {
 376         /* busy loop if we cannot obtain the lock as some calls
 377          * such as ndo_set_rx_mode may be made in atomic context
 378          */
 379         while (test_and_set_bit(__FM10K_MBX_LOCK, &interface->state))
 380                 udelay(20);
 381 }
 382
 383 static inline void fm10k_mbx_unlock(struct fm10k_intfc *interface)
 384 {
 385         /* flush memory to make sure state is correct */
 386         smp_mb__before_atomic();
 387         clear_bit(__FM10K_MBX_LOCK, &interface->state);
 388 }
 389
 390 static inline int fm10k_mbx_trylock(struct fm10k_intfc *interface)
 391 {
 392         return !test_and_set_bit(__FM10K_MBX_LOCK, &interface->state);
 393 }
 394
 395 /* fm10k_test_staterr - test bits in Rx descriptor status and error fields */
 396 static inline __le32 fm10k_test_staterr(union fm10k_rx_desc *rx_desc,
 397                                         const u32 stat_err_bits)
 398 {
 399         return rx_desc->d.staterr & cpu_to_le32(stat_err_bits);
 400 }
 401
 402 /* fm10k_desc_unused - calculate if we have unused descriptors */
 403 static inline u16 fm10k_desc_unused(struct fm10k_ring *ring)
 404 {
 405         s16 unused = ring->next_to_clean - ring->next_to_use - 1;
 406
 407         return likely(unused < 0) ? unused + ring->count : unused;
 408 }
 409
 410 #define FM10K_TX_DESC(R, i)     \
 411         (&(((struct fm10k_tx_desc *)((R)->desc))[i]))
 412 #define FM10K_RX_DESC(R, i)     \
 413          (&(((union fm10k_rx_desc *)((R)->desc))[i]))
 414
 415 #define FM10K_MAX_TXD_PWR       14
 416 #define FM10K_MAX_DATA_PER_TXD  (1 << FM10K_MAX_TXD_PWR)
 417
 418 /* Tx Descriptors needed, worst case */
 419 #define TXD_USE_COUNT(S)        DIV_ROUND_UP((S), FM10K_MAX_DATA_PER_TXD)
 420 #define DESC_NEEDED     (MAX_SKB_FRAGS + 4)
 421
 422 enum fm10k_tx_flags {
 423         /* Tx offload flags */
 424         FM10K_TX_FLAGS_CSUM     = 0x01,
 425 };
 426
 427 /* This structure is stored as little endian values as that is the native
 428  * format of the Rx descriptor.  The ordering of these fields is reversed
 429  * from the actual ftag header to allow for a single bswap to take care
 430  * of placing all of the values in network order
 431  */
 432 union fm10k_ftag_info {
 433         __le64 ftag;
 434         struct {
 435                 /* dglort and sglort combined into a single 32bit desc read */
 436                 __le32 glort;
 437                 /* upper 16 bits of vlan are reserved 0 for swpri_type_user */
 438                 __le32 vlan;
 439         } d;
 440         struct {
 441                 __le16 dglort;
 442                 __le16 sglort;
 443                 __le16 vlan;
 444                 __le16 swpri_type_user;
 445         } w;
 446 };
 447
 448 struct fm10k_cb {
 449         union {
 450                 __le64 tstamp;
 451                 unsigned long ts_tx_timeout;
 452         };
 453         union fm10k_ftag_info fi;
 454 };
 455
 456 #define FM10K_CB(skb) ((struct fm10k_cb *)(skb)->cb)
 457
 458 /* main */
 459 extern char fm10k_driver_name[];
 460 extern const char fm10k_driver_version[];
 461 int fm10k_init_queueing_scheme(struct fm10k_intfc *interface);
 462 void fm10k_clear_queueing_scheme(struct fm10k_intfc *interface);
 463 __be16 fm10k_tx_encap_offload(struct sk_buff *skb);
 464 netdev_tx_t fm10k_xmit_frame_ring(struct sk_buff *skb,
 465                                   struct fm10k_ring *tx_ring);
 466 void fm10k_tx_timeout_reset(struct fm10k_intfc *interface);
 467 bool fm10k_check_tx_hang(struct fm10k_ring *tx_ring);
 468 void fm10k_alloc_rx_buffers(struct fm10k_ring *rx_ring, u16 cleaned_count);
 469
 470 /* PCI */
 471 void fm10k_mbx_free_irq(struct fm10k_intfc *);
 472 int fm10k_mbx_request_irq(struct fm10k_intfc *);
 473 void fm10k_qv_free_irq(struct fm10k_intfc *interface);
 474 int fm10k_qv_request_irq(struct fm10k_intfc *interface);
 475 int fm10k_register_pci_driver(void);
 476 void fm10k_unregister_pci_driver(void);
 477 void fm10k_up(struct fm10k_intfc *interface);
 478 void fm10k_down(struct fm10k_intfc *interface);
 479 void fm10k_update_stats(struct fm10k_intfc *interface);
 480 void fm10k_service_event_schedule(struct fm10k_intfc *interface);
 481 void fm10k_update_rx_drop_en(struct fm10k_intfc *interface);
 482 #ifdef CONFIG_NET_POLL_CONTROLLER
 483 void fm10k_netpoll(struct net_device *netdev);
 484 #endif
 485
 486 /* Netdev */
 487 struct net_device *fm10k_alloc_netdev(void);
 488 int fm10k_setup_rx_resources(struct fm10k_ring *);
 489 int fm10k_setup_tx_resources(struct fm10k_ring *);
 490 void fm10k_free_rx_resources(struct fm10k_ring *);
 491 void fm10k_free_tx_resources(struct fm10k_ring *);
 492 void fm10k_clean_all_rx_rings(struct fm10k_intfc *);
 493 void fm10k_clean_all_tx_rings(struct fm10k_intfc *);
 494 void fm10k_unmap_and_free_tx_resource(struct fm10k_ring *,
 495                                       struct fm10k_tx_buffer *);
 496 void fm10k_restore_rx_state(struct fm10k_intfc *);
 497 void fm10k_reset_rx_state(struct fm10k_intfc *);
 498 int fm10k_setup_tc(struct net_device *dev, u8 tc);
 499 int fm10k_open(struct net_device *netdev);
 500 int fm10k_close(struct net_device *netdev);
 501
 502 /* Ethtool */
 503 void fm10k_set_ethtool_ops(struct net_device *dev);
 504
 505 /* IOV */
 506 s32 fm10k_iov_event(struct fm10k_intfc *interface);
 507 s32 fm10k_iov_mbx(struct fm10k_intfc *interface);
 508 void fm10k_iov_suspend(struct pci_dev *pdev);
 509 int fm10k_iov_resume(struct pci_dev *pdev);
 510 void fm10k_iov_disable(struct pci_dev *pdev);
 511 int fm10k_iov_configure(struct pci_dev *pdev, int num_vfs);
 512 s32 fm10k_iov_update_pvid(struct fm10k_intfc *interface, u16 glort, u16 pvid);
 513 int fm10k_ndo_set_vf_mac(struct net_device *netdev, int vf_idx, u8 *mac);
 514 int fm10k_ndo_set_vf_vlan(struct net_device *netdev,
 515                           int vf_idx, u16 vid, u8 qos);
 516 int fm10k_ndo_set_vf_bw(struct net_device *netdev, int vf_idx, int rate,
 517                         int unused);
 518 int fm10k_ndo_get_vf_config(struct net_device *netdev,
 519                             int vf_idx, struct ifla_vf_info *ivi);
 520
 521 /* DebugFS */
 522 #ifdef CONFIG_DEBUG_FS
 523 void fm10k_dbg_q_vector_init(struct fm10k_q_vector *q_vector);
 524 void fm10k_dbg_q_vector_exit(struct fm10k_q_vector *q_vector);
 525 void fm10k_dbg_intfc_init(struct fm10k_intfc *interface);
 526 void fm10k_dbg_intfc_exit(struct fm10k_intfc *interface);
 527 void fm10k_dbg_init(void);
 528 void fm10k_dbg_exit(void);
 529 #else
 530 static inline void fm10k_dbg_q_vector_init(struct fm10k_q_vector *q_vector) {}
 531 static inline void fm10k_dbg_q_vector_exit(struct fm10k_q_vector *q_vector) {}
 532 static inline void fm10k_dbg_intfc_init(struct fm10k_intfc *interface) {}
 533 static inline void fm10k_dbg_intfc_exit(struct fm10k_intfc *interface) {}
 534 static inline void fm10k_dbg_init(void) {}
 535 static inline void fm10k_dbg_exit(void) {}
 536 #endif /* CONFIG_DEBUG_FS */
 537
 538 /* Time Stamping */
 539 void fm10k_systime_to_hwtstamp(struct fm10k_intfc *interface,
 540                                struct skb_shared_hwtstamps *hwtstamp,
 541                                u64 systime);
 542 void fm10k_ts_tx_enqueue(struct fm10k_intfc *interface, struct sk_buff *skb);
 543 void fm10k_ts_tx_hwtstamp(struct fm10k_intfc *interface, __le16 dglort,
 544                           u64 systime);
 545 void fm10k_ts_reset(struct fm10k_intfc *interface);
 546 void fm10k_ts_init(struct fm10k_intfc *interface);
 547 void fm10k_ts_tx_subtask(struct fm10k_intfc *interface);
 548 void fm10k_ptp_register(struct fm10k_intfc *interface);
 549 void fm10k_ptp_unregister(struct fm10k_intfc *interface);
 550 int fm10k_get_ts_config(struct net_device *netdev, struct ifreq *ifr);
 551 int fm10k_set_ts_config(struct net_device *netdev, struct ifreq *ifr);
 552
 553 /* DCB */
 554 void fm10k_dcbnl_set_ops(struct net_device *dev);
 555 #endif /* _FM10K_H_ */