1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* Copyright (c) 2018, Intel Corporation. */ 3 4 #ifndef _ICE_H_ 5 #define _ICE_H_ 6 7 #include <linux/types.h> 8 #include <linux/errno.h> 9 #include <linux/kernel.h> 10 #include <linux/module.h> 11 #include <linux/firmware.h> 12 #include <linux/netdevice.h> 13 #include <linux/compiler.h> 14 #include <linux/etherdevice.h> 15 #include <linux/skbuff.h> 16 #include <linux/cpumask.h> 17 #include <linux/rtnetlink.h> 18 #include <linux/if_vlan.h> 19 #include <linux/dma-mapping.h> 20 #include <linux/pci.h> 21 #include <linux/workqueue.h> 22 #include <linux/aer.h> 23 #include <linux/interrupt.h> 24 #include <linux/ethtool.h> 25 #include <linux/timer.h> 26 #include <linux/delay.h> 27 #include <linux/bitmap.h> 28 #include <linux/log2.h> 29 #include <linux/ip.h> 30 #include <linux/sctp.h> 31 #include <linux/ipv6.h> 32 #include <linux/pkt_sched.h> 33 #include <linux/if_bridge.h> 34 #include <linux/ctype.h> 35 #include <linux/bpf.h> 36 #include <linux/avf/virtchnl.h> 37 #include <net/ipv6.h> 38 #include <net/xdp_sock.h> 39 #include "ice_devids.h" 40 #include "ice_type.h" 41 #include "ice_txrx.h" 42 #include "ice_dcb.h" 43 #include "ice_switch.h" 44 #include "ice_common.h" 45 #include "ice_sched.h" 46 #include "ice_virtchnl_pf.h" 47 #include "ice_sriov.h" 48 #include "ice_xsk.h" 49 50 extern const char ice_drv_ver[]; 51 #define ICE_BAR0 0 52 #define ICE_REQ_DESC_MULTIPLE 32 53 #define ICE_MIN_NUM_DESC 64 54 #define ICE_MAX_NUM_DESC 8160 55 #define ICE_DFLT_MIN_RX_DESC 512 56 #define ICE_DFLT_NUM_TX_DESC 256 57 #define ICE_DFLT_NUM_RX_DESC 2048 58 59 #define ICE_DFLT_TRAFFIC_CLASS BIT(0) 60 #define ICE_INT_NAME_STR_LEN (IFNAMSIZ + 16) 61 #define ICE_AQ_LEN 64 62 #define ICE_MBXSQ_LEN 64 63 #define ICE_MIN_MSIX 2 64 #define ICE_NO_VSI 0xffff 65 #define ICE_VSI_MAP_CONTIG 0 66 #define ICE_VSI_MAP_SCATTER 1 67 #define ICE_MAX_SCATTER_TXQS 16 68 #define ICE_MAX_SCATTER_RXQS 16 69 #define ICE_Q_WAIT_RETRY_LIMIT 10 70 #define ICE_Q_WAIT_MAX_RETRY (5 * ICE_Q_WAIT_RETRY_LIMIT) 71 #define ICE_MAX_LG_RSS_QS 256 72 #define ICE_RES_VALID_BIT 0x8000 73 #define ICE_RES_MISC_VEC_ID (ICE_RES_VALID_BIT - 1) 74 #define ICE_INVAL_Q_INDEX 0xffff 75 #define ICE_INVAL_VFID 256 76 77 #define ICE_MAX_RESET_WAIT 20 78 79 #define ICE_VSIQF_HKEY_ARRAY_SIZE ((VSIQF_HKEY_MAX_INDEX + 1) * 4) 80 81 #define ICE_DFLT_NETIF_M (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK) 82 83 #define ICE_MAX_MTU (ICE_AQ_SET_MAC_FRAME_SIZE_MAX - ICE_ETH_PKT_HDR_PAD) 84 85 #define ICE_UP_TABLE_TRANSLATE(val, i) \ 86 (((val) << ICE_AQ_VSI_UP_TABLE_UP##i##_S) & \ 87 ICE_AQ_VSI_UP_TABLE_UP##i##_M) 88 89 #define ICE_TX_DESC(R, i) (&(((struct ice_tx_desc *)((R)->desc))[i])) 90 #define ICE_RX_DESC(R, i) (&(((union ice_32b_rx_flex_desc *)((R)->desc))[i])) 91 #define ICE_TX_CTX_DESC(R, i) (&(((struct ice_tx_ctx_desc *)((R)->desc))[i])) 92 93 /* Macro for each VSI in a PF */ 94 #define ice_for_each_vsi(pf, i) \ 95 for ((i) = 0; (i) < (pf)->num_alloc_vsi; (i)++) 96 97 /* Macros for each Tx/Rx ring in a VSI */ 98 #define ice_for_each_txq(vsi, i) \ 99 for ((i) = 0; (i) < (vsi)->num_txq; (i)++) 100 101 #define ice_for_each_rxq(vsi, i) \ 102 for ((i) = 0; (i) < (vsi)->num_rxq; (i)++) 103 104 /* Macros for each allocated Tx/Rx ring whether used or not in a VSI */ 105 #define ice_for_each_alloc_txq(vsi, i) \ 106 for ((i) = 0; (i) < (vsi)->alloc_txq; (i)++) 107 108 #define ice_for_each_alloc_rxq(vsi, i) \ 109 for ((i) = 0; (i) < (vsi)->alloc_rxq; (i)++) 110 111 #define ice_for_each_q_vector(vsi, i) \ 112 for ((i) = 0; (i) < (vsi)->num_q_vectors; (i)++) 113 114 #define ICE_UCAST_PROMISC_BITS (ICE_PROMISC_UCAST_TX | ICE_PROMISC_MCAST_TX | \ 115 ICE_PROMISC_UCAST_RX | ICE_PROMISC_MCAST_RX) 116 117 #define ICE_UCAST_VLAN_PROMISC_BITS (ICE_PROMISC_UCAST_TX | \ 118 ICE_PROMISC_MCAST_TX | \ 119 ICE_PROMISC_UCAST_RX | \ 120 ICE_PROMISC_MCAST_RX | \ 121 ICE_PROMISC_VLAN_TX | \ 122 ICE_PROMISC_VLAN_RX) 123 124 #define ICE_MCAST_PROMISC_BITS (ICE_PROMISC_MCAST_TX | ICE_PROMISC_MCAST_RX) 125 126 #define ICE_MCAST_VLAN_PROMISC_BITS (ICE_PROMISC_MCAST_TX | \ 127 ICE_PROMISC_MCAST_RX | \ 128 ICE_PROMISC_VLAN_TX | \ 129 ICE_PROMISC_VLAN_RX) 130 131 #define ice_pf_to_dev(pf) (&((pf)->pdev->dev)) 132 133 struct ice_txq_meta { 134 u32 q_teid; /* Tx-scheduler element identifier */ 135 u16 q_id; /* Entry in VSI's txq_map bitmap */ 136 u16 q_handle; /* Relative index of Tx queue within TC */ 137 u16 vsi_idx; /* VSI index that Tx queue belongs to */ 138 u8 tc; /* TC number that Tx queue belongs to */ 139 }; 140 141 struct ice_tc_info { 142 u16 qoffset; 143 u16 qcount_tx; 144 u16 qcount_rx; 145 u8 netdev_tc; 146 }; 147 148 struct ice_tc_cfg { 149 u8 numtc; /* Total number of enabled TCs */ 150 u8 ena_tc; /* Tx map */ 151 struct ice_tc_info tc_info[ICE_MAX_TRAFFIC_CLASS]; 152 }; 153 154 struct ice_res_tracker { 155 u16 num_entries; 156 u16 end; 157 u16 list[1]; 158 }; 159 160 struct ice_qs_cfg { 161 struct mutex *qs_mutex; /* will be assigned to &pf->avail_q_mutex */ 162 unsigned long *pf_map; 163 unsigned long pf_map_size; 164 unsigned int q_count; 165 unsigned int scatter_count; 166 u16 *vsi_map; 167 u16 vsi_map_offset; 168 u8 mapping_mode; 169 }; 170 171 struct ice_sw { 172 struct ice_pf *pf; 173 u16 sw_id; /* switch ID for this switch */ 174 u16 bridge_mode; /* VEB/VEPA/Port Virtualizer */ 175 struct ice_vsi *dflt_vsi; /* default VSI for this switch */ 176 u8 dflt_vsi_ena:1; /* true if above dflt_vsi is enabled */ 177 }; 178 179 enum ice_state { 180 __ICE_TESTING, 181 __ICE_DOWN, 182 __ICE_NEEDS_RESTART, 183 __ICE_PREPARED_FOR_RESET, /* set by driver when prepared */ 184 __ICE_RESET_OICR_RECV, /* set by driver after rcv reset OICR */ 185 __ICE_DCBNL_DEVRESET, /* set by dcbnl devreset */ 186 __ICE_PFR_REQ, /* set by driver and peers */ 187 __ICE_CORER_REQ, /* set by driver and peers */ 188 __ICE_GLOBR_REQ, /* set by driver and peers */ 189 __ICE_CORER_RECV, /* set by OICR handler */ 190 __ICE_GLOBR_RECV, /* set by OICR handler */ 191 __ICE_EMPR_RECV, /* set by OICR handler */ 192 __ICE_SUSPENDED, /* set on module remove path */ 193 __ICE_RESET_FAILED, /* set by reset/rebuild */ 194 /* When checking for the PF to be in a nominal operating state, the 195 * bits that are grouped at the beginning of the list need to be 196 * checked. Bits occurring before __ICE_STATE_NOMINAL_CHECK_BITS will 197 * be checked. If you need to add a bit into consideration for nominal 198 * operating state, it must be added before 199 * __ICE_STATE_NOMINAL_CHECK_BITS. Do not move this entry's position 200 * without appropriate consideration. 201 */ 202 __ICE_STATE_NOMINAL_CHECK_BITS, 203 __ICE_ADMINQ_EVENT_PENDING, 204 __ICE_MAILBOXQ_EVENT_PENDING, 205 __ICE_MDD_EVENT_PENDING, 206 __ICE_VFLR_EVENT_PENDING, 207 __ICE_FLTR_OVERFLOW_PROMISC, 208 __ICE_VF_DIS, 209 __ICE_CFG_BUSY, 210 __ICE_SERVICE_SCHED, 211 __ICE_SERVICE_DIS, 212 __ICE_OICR_INTR_DIS, /* Global OICR interrupt disabled */ 213 __ICE_MDD_VF_PRINT_PENDING, /* set when MDD event handle */ 214 __ICE_VF_RESETS_DISABLED, /* disable resets during ice_remove */ 215 __ICE_STATE_NBITS /* must be last */ 216 }; 217 218 enum ice_vsi_flags { 219 ICE_VSI_FLAG_UMAC_FLTR_CHANGED, 220 ICE_VSI_FLAG_MMAC_FLTR_CHANGED, 221 ICE_VSI_FLAG_VLAN_FLTR_CHANGED, 222 ICE_VSI_FLAG_PROMISC_CHANGED, 223 ICE_VSI_FLAG_NBITS /* must be last */ 224 }; 225 226 /* struct that defines a VSI, associated with a dev */ 227 struct ice_vsi { 228 struct net_device *netdev; 229 struct ice_sw *vsw; /* switch this VSI is on */ 230 struct ice_pf *back; /* back pointer to PF */ 231 struct ice_port_info *port_info; /* back pointer to port_info */ 232 struct ice_ring **rx_rings; /* Rx ring array */ 233 struct ice_ring **tx_rings; /* Tx ring array */ 234 struct ice_q_vector **q_vectors; /* q_vector array */ 235 236 irqreturn_t (*irq_handler)(int irq, void *data); 237 238 u64 tx_linearize; 239 DECLARE_BITMAP(state, __ICE_STATE_NBITS); 240 DECLARE_BITMAP(flags, ICE_VSI_FLAG_NBITS); 241 unsigned int current_netdev_flags; 242 u32 tx_restart; 243 u32 tx_busy; 244 u32 rx_buf_failed; 245 u32 rx_page_failed; 246 int num_q_vectors; 247 int base_vector; /* IRQ base for OS reserved vectors */ 248 enum ice_vsi_type type; 249 u16 vsi_num; /* HW (absolute) index of this VSI */ 250 u16 idx; /* software index in pf->vsi[] */ 251 252 s16 vf_id; /* VF ID for SR-IOV VSIs */ 253 254 u16 ethtype; /* Ethernet protocol for pause frame */ 255 256 /* RSS config */ 257 u16 rss_table_size; /* HW RSS table size */ 258 u16 rss_size; /* Allocated RSS queues */ 259 u8 *rss_hkey_user; /* User configured hash keys */ 260 u8 *rss_lut_user; /* User configured lookup table entries */ 261 u8 rss_lut_type; /* used to configure Get/Set RSS LUT AQ call */ 262 263 u16 max_frame; 264 u16 rx_buf_len; 265 266 struct ice_aqc_vsi_props info; /* VSI properties */ 267 268 /* VSI stats */ 269 struct rtnl_link_stats64 net_stats; 270 struct ice_eth_stats eth_stats; 271 struct ice_eth_stats eth_stats_prev; 272 273 struct list_head tmp_sync_list; /* MAC filters to be synced */ 274 struct list_head tmp_unsync_list; /* MAC filters to be unsynced */ 275 276 u8 irqs_ready:1; 277 u8 current_isup:1; /* Sync 'link up' logging */ 278 u8 stat_offsets_loaded:1; 279 u8 vlan_ena:1; 280 u16 num_vlan; 281 282 /* queue information */ 283 u8 tx_mapping_mode; /* ICE_MAP_MODE_[CONTIG|SCATTER] */ 284 u8 rx_mapping_mode; /* ICE_MAP_MODE_[CONTIG|SCATTER] */ 285 u16 *txq_map; /* index in pf->avail_txqs */ 286 u16 *rxq_map; /* index in pf->avail_rxqs */ 287 u16 alloc_txq; /* Allocated Tx queues */ 288 u16 num_txq; /* Used Tx queues */ 289 u16 alloc_rxq; /* Allocated Rx queues */ 290 u16 num_rxq; /* Used Rx queues */ 291 u16 req_txq; /* User requested Tx queues */ 292 u16 req_rxq; /* User requested Rx queues */ 293 u16 num_rx_desc; 294 u16 num_tx_desc; 295 struct ice_tc_cfg tc_cfg; 296 struct bpf_prog *xdp_prog; 297 struct ice_ring **xdp_rings; /* XDP ring array */ 298 u16 num_xdp_txq; /* Used XDP queues */ 299 u8 xdp_mapping_mode; /* ICE_MAP_MODE_[CONTIG|SCATTER] */ 300 struct xdp_umem **xsk_umems; 301 u16 num_xsk_umems_used; 302 u16 num_xsk_umems; 303 } ____cacheline_internodealigned_in_smp; 304 305 /* struct that defines an interrupt vector */ 306 struct ice_q_vector { 307 struct ice_vsi *vsi; 308 309 u16 v_idx; /* index in the vsi->q_vector array. */ 310 u16 reg_idx; 311 u8 num_ring_rx; /* total number of Rx rings in vector */ 312 u8 num_ring_tx; /* total number of Tx rings in vector */ 313 u8 itr_countdown; /* when 0 should adjust adaptive ITR */ 314 /* in usecs, need to use ice_intrl_to_usecs_reg() before writing this 315 * value to the device 316 */ 317 u8 intrl; 318 319 struct napi_struct napi; 320 321 struct ice_ring_container rx; 322 struct ice_ring_container tx; 323 324 cpumask_t affinity_mask; 325 struct irq_affinity_notify affinity_notify; 326 327 char name[ICE_INT_NAME_STR_LEN]; 328 } ____cacheline_internodealigned_in_smp; 329 330 enum ice_pf_flags { 331 ICE_FLAG_FLTR_SYNC, 332 ICE_FLAG_RSS_ENA, 333 ICE_FLAG_SRIOV_ENA, 334 ICE_FLAG_SRIOV_CAPABLE, 335 ICE_FLAG_DCB_CAPABLE, 336 ICE_FLAG_DCB_ENA, 337 ICE_FLAG_ADV_FEATURES, 338 ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, 339 ICE_FLAG_NO_MEDIA, 340 ICE_FLAG_FW_LLDP_AGENT, 341 ICE_FLAG_ETHTOOL_CTXT, /* set when ethtool holds RTNL lock */ 342 ICE_FLAG_LEGACY_RX, 343 ICE_FLAG_MDD_AUTO_RESET_VF, 344 ICE_PF_FLAGS_NBITS /* must be last */ 345 }; 346 347 struct ice_pf { 348 struct pci_dev *pdev; 349 350 /* OS reserved IRQ details */ 351 struct msix_entry *msix_entries; 352 struct ice_res_tracker *irq_tracker; 353 /* First MSIX vector used by SR-IOV VFs. Calculated by subtracting the 354 * number of MSIX vectors needed for all SR-IOV VFs from the number of 355 * MSIX vectors allowed on this PF. 356 */ 357 u16 sriov_base_vector; 358 359 struct ice_vsi **vsi; /* VSIs created by the driver */ 360 struct ice_sw *first_sw; /* first switch created by firmware */ 361 /* Virtchnl/SR-IOV config info */ 362 struct ice_vf *vf; 363 int num_alloc_vfs; /* actual number of VFs allocated */ 364 u16 num_vfs_supported; /* num VFs supported for this PF */ 365 u16 num_qps_per_vf; 366 u16 num_msix_per_vf; 367 /* used to ratelimit the MDD event logging */ 368 unsigned long last_printed_mdd_jiffies; 369 DECLARE_BITMAP(state, __ICE_STATE_NBITS); 370 DECLARE_BITMAP(flags, ICE_PF_FLAGS_NBITS); 371 unsigned long *avail_txqs; /* bitmap to track PF Tx queue usage */ 372 unsigned long *avail_rxqs; /* bitmap to track PF Rx queue usage */ 373 unsigned long serv_tmr_period; 374 unsigned long serv_tmr_prev; 375 struct timer_list serv_tmr; 376 struct work_struct serv_task; 377 struct mutex avail_q_mutex; /* protects access to avail_[rx|tx]qs */ 378 struct mutex sw_mutex; /* lock for protecting VSI alloc flow */ 379 struct mutex tc_mutex; /* lock to protect TC changes */ 380 u32 msg_enable; 381 u32 hw_csum_rx_error; 382 u32 oicr_idx; /* Other interrupt cause MSIX vector index */ 383 u32 num_avail_sw_msix; /* remaining MSIX SW vectors left unclaimed */ 384 u16 max_pf_txqs; /* Total Tx queues PF wide */ 385 u16 max_pf_rxqs; /* Total Rx queues PF wide */ 386 u32 num_lan_msix; /* Total MSIX vectors for base driver */ 387 u16 num_lan_tx; /* num LAN Tx queues setup */ 388 u16 num_lan_rx; /* num LAN Rx queues setup */ 389 u16 next_vsi; /* Next free slot in pf->vsi[] - 0-based! */ 390 u16 num_alloc_vsi; 391 u16 corer_count; /* Core reset count */ 392 u16 globr_count; /* Global reset count */ 393 u16 empr_count; /* EMP reset count */ 394 u16 pfr_count; /* PF reset count */ 395 396 struct ice_hw_port_stats stats; 397 struct ice_hw_port_stats stats_prev; 398 struct ice_hw hw; 399 u8 stat_prev_loaded:1; /* has previous stats been loaded */ 400 #ifdef CONFIG_DCB 401 u16 dcbx_cap; 402 #endif /* CONFIG_DCB */ 403 u32 tx_timeout_count; 404 unsigned long tx_timeout_last_recovery; 405 u32 tx_timeout_recovery_level; 406 char int_name[ICE_INT_NAME_STR_LEN]; 407 u32 sw_int_count; 408 }; 409 410 struct ice_netdev_priv { 411 struct ice_vsi *vsi; 412 }; 413 414 /** 415 * ice_irq_dynamic_ena - Enable default interrupt generation settings 416 * @hw: pointer to HW struct 417 * @vsi: pointer to VSI struct, can be NULL 418 * @q_vector: pointer to q_vector, can be NULL 419 */ 420 static inline void 421 ice_irq_dynamic_ena(struct ice_hw *hw, struct ice_vsi *vsi, 422 struct ice_q_vector *q_vector) 423 { 424 u32 vector = (vsi && q_vector) ? q_vector->reg_idx : 425 ((struct ice_pf *)hw->back)->oicr_idx; 426 int itr = ICE_ITR_NONE; 427 u32 val; 428 429 /* clear the PBA here, as this function is meant to clean out all 430 * previous interrupts and enable the interrupt 431 */ 432 val = GLINT_DYN_CTL_INTENA_M | GLINT_DYN_CTL_CLEARPBA_M | 433 (itr << GLINT_DYN_CTL_ITR_INDX_S); 434 if (vsi) 435 if (test_bit(__ICE_DOWN, vsi->state)) 436 return; 437 wr32(hw, GLINT_DYN_CTL(vector), val); 438 } 439 440 /** 441 * ice_netdev_to_pf - Retrieve the PF struct associated with a netdev 442 * @netdev: pointer to the netdev struct 443 */ 444 static inline struct ice_pf *ice_netdev_to_pf(struct net_device *netdev) 445 { 446 struct ice_netdev_priv *np = netdev_priv(netdev); 447 448 return np->vsi->back; 449 } 450 451 static inline bool ice_is_xdp_ena_vsi(struct ice_vsi *vsi) 452 { 453 return !!vsi->xdp_prog; 454 } 455 456 static inline void ice_set_ring_xdp(struct ice_ring *ring) 457 { 458 ring->flags |= ICE_TX_FLAGS_RING_XDP; 459 } 460 461 /** 462 * ice_xsk_umem - get XDP UMEM bound to a ring 463 * @ring - ring to use 464 * 465 * Returns a pointer to xdp_umem structure if there is an UMEM present, 466 * NULL otherwise. 467 */ 468 static inline struct xdp_umem *ice_xsk_umem(struct ice_ring *ring) 469 { 470 struct xdp_umem **umems = ring->vsi->xsk_umems; 471 u16 qid = ring->q_index; 472 473 if (ice_ring_is_xdp(ring)) 474 qid -= ring->vsi->num_xdp_txq; 475 476 if (qid >= ring->vsi->num_xsk_umems || !umems || !umems[qid] || 477 !ice_is_xdp_ena_vsi(ring->vsi)) 478 return NULL; 479 480 return umems[qid]; 481 } 482 483 /** 484 * ice_get_main_vsi - Get the PF VSI 485 * @pf: PF instance 486 * 487 * returns pf->vsi[0], which by definition is the PF VSI 488 */ 489 static inline struct ice_vsi *ice_get_main_vsi(struct ice_pf *pf) 490 { 491 if (pf->vsi) 492 return pf->vsi[0]; 493 494 return NULL; 495 } 496 497 int ice_vsi_setup_tx_rings(struct ice_vsi *vsi); 498 int ice_vsi_setup_rx_rings(struct ice_vsi *vsi); 499 void ice_set_ethtool_ops(struct net_device *netdev); 500 void ice_set_ethtool_safe_mode_ops(struct net_device *netdev); 501 u16 ice_get_avail_txq_count(struct ice_pf *pf); 502 u16 ice_get_avail_rxq_count(struct ice_pf *pf); 503 int ice_vsi_recfg_qs(struct ice_vsi *vsi, int new_rx, int new_tx); 504 void ice_update_vsi_stats(struct ice_vsi *vsi); 505 void ice_update_pf_stats(struct ice_pf *pf); 506 int ice_up(struct ice_vsi *vsi); 507 int ice_down(struct ice_vsi *vsi); 508 int ice_vsi_cfg(struct ice_vsi *vsi); 509 struct ice_vsi *ice_lb_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi); 510 int ice_prepare_xdp_rings(struct ice_vsi *vsi, struct bpf_prog *prog); 511 int ice_destroy_xdp_rings(struct ice_vsi *vsi); 512 int 513 ice_xdp_xmit(struct net_device *dev, int n, struct xdp_frame **frames, 514 u32 flags); 515 int ice_set_rss(struct ice_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size); 516 int ice_get_rss(struct ice_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size); 517 void ice_fill_rss_lut(u8 *lut, u16 rss_table_size, u16 rss_size); 518 int ice_schedule_reset(struct ice_pf *pf, enum ice_reset_req reset); 519 void ice_print_link_msg(struct ice_vsi *vsi, bool isup); 520 int ice_open(struct net_device *netdev); 521 int ice_stop(struct net_device *netdev); 522 523 #endif /* _ICE_H_ */ 524