1 /*******************************************************************************
2 *
3 * Copyright (c) 2015-2016 Intel Corporation. All rights reserved.
4 *
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenFabrics.org BSD license below:
10 *
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
13 * conditions are met:
14 *
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
17 * disclaimer.
18 *
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31 * SOFTWARE.
32 *
33 *******************************************************************************/
34
35 #ifndef I40IW_IW_H
36 #define I40IW_IW_H
37 #include <linux/netdevice.h>
38 #include <linux/inetdevice.h>
39 #include <linux/spinlock.h>
40 #include <linux/kernel.h>
41 #include <linux/delay.h>
42 #include <linux/pci.h>
43 #include <linux/dma-mapping.h>
44 #include <linux/workqueue.h>
45 #include <linux/slab.h>
46 #include <linux/io.h>
47 #include <linux/crc32c.h>
48 #include <linux/net/intel/i40e_client.h>
49 #include <rdma/ib_smi.h>
50 #include <rdma/ib_verbs.h>
51 #include <rdma/ib_pack.h>
52 #include <rdma/rdma_cm.h>
53 #include <rdma/iw_cm.h>
54 #include <crypto/hash.h>
55
56 #include "i40iw_status.h"
57 #include "i40iw_osdep.h"
58 #include "i40iw_d.h"
59 #include "i40iw_hmc.h"
60
61 #include "i40iw_type.h"
62 #include "i40iw_p.h"
63 #include <rdma/i40iw-abi.h>
64 #include "i40iw_pble.h"
65 #include "i40iw_verbs.h"
66 #include "i40iw_cm.h"
67 #include "i40iw_user.h"
68 #include "i40iw_puda.h"
69
70 #define I40IW_FW_VER_DEFAULT 2
71 #define I40IW_HW_VERSION 2
72
73 #define I40IW_ARP_ADD 1
74 #define I40IW_ARP_DELETE 2
75 #define I40IW_ARP_RESOLVE 3
76
77 #define I40IW_MACIP_ADD 1
78 #define I40IW_MACIP_DELETE 2
79
80 #define IW_CCQ_SIZE (I40IW_CQP_SW_SQSIZE_2048 + 1)
81 #define IW_CEQ_SIZE 2048
82 #define IW_AEQ_SIZE 2048
83
84 #define RX_BUF_SIZE (1536 + 8)
85 #define IW_REG0_SIZE (4 * 1024)
86 #define IW_TX_TIMEOUT (6 * HZ)
87 #define IW_FIRST_QPN 1
88 #define IW_SW_CONTEXT_ALIGN 1024
89
90 #define MAX_DPC_ITERATIONS 128
91
92 #define I40IW_EVENT_TIMEOUT 100000
93 #define I40IW_VCHNL_EVENT_TIMEOUT 100000
94
95 #define I40IW_NO_VLAN 0xffff
96 #define I40IW_NO_QSET 0xffff
97
98 /* access to mcast filter list */
99 #define IW_ADD_MCAST false
100 #define IW_DEL_MCAST true
101
102 #define I40IW_DRV_OPT_ENABLE_MPA_VER_0 0x00000001
103 #define I40IW_DRV_OPT_DISABLE_MPA_CRC 0x00000002
104 #define I40IW_DRV_OPT_DISABLE_FIRST_WRITE 0x00000004
105 #define I40IW_DRV_OPT_DISABLE_INTF 0x00000008
106 #define I40IW_DRV_OPT_ENABLE_MSI 0x00000010
107 #define I40IW_DRV_OPT_DUAL_LOGICAL_PORT 0x00000020
108 #define I40IW_DRV_OPT_NO_INLINE_DATA 0x00000080
109 #define I40IW_DRV_OPT_DISABLE_INT_MOD 0x00000100
110 #define I40IW_DRV_OPT_DISABLE_VIRT_WQ 0x00000200
111 #define I40IW_DRV_OPT_ENABLE_PAU 0x00000400
112 #define I40IW_DRV_OPT_MCAST_LOGPORT_MAP 0x00000800
113
114 #define IW_HMC_OBJ_TYPE_NUM ARRAY_SIZE(iw_hmc_obj_types)
115 #define IW_CFG_FPM_QP_COUNT 32768
116 #define I40IW_MAX_PAGES_PER_FMR 512
117 #define I40IW_MIN_PAGES_PER_FMR 1
118 #define I40IW_CQP_COMPL_RQ_WQE_FLUSHED 2
119 #define I40IW_CQP_COMPL_SQ_WQE_FLUSHED 3
120 #define I40IW_CQP_COMPL_RQ_SQ_WQE_FLUSHED 4
121
122 struct i40iw_cqp_compl_info {
123 u32 op_ret_val;
124 u16 maj_err_code;
125 u16 min_err_code;
126 bool error;
127 u8 op_code;
128 };
129
130 #define i40iw_pr_err(fmt, args ...) pr_err("%s: "fmt, __func__, ## args)
131
132 #define i40iw_pr_info(fmt, args ...) pr_info("%s: " fmt, __func__, ## args)
133
134 #define i40iw_pr_warn(fmt, args ...) pr_warn("%s: " fmt, __func__, ## args)
135
136 struct i40iw_cqp_request {
137 struct cqp_commands_info info;
138 wait_queue_head_t waitq;
139 struct list_head list;
140 atomic_t refcount;
141 void (*callback_fcn)(struct i40iw_cqp_request*, u32);
142 void *param;
143 struct i40iw_cqp_compl_info compl_info;
144 bool waiting;
145 bool request_done;
146 bool dynamic;
147 };
148
149 struct i40iw_cqp {
150 struct i40iw_sc_cqp sc_cqp;
151 spinlock_t req_lock; /*cqp request list */
152 wait_queue_head_t waitq;
153 struct i40iw_dma_mem sq;
154 struct i40iw_dma_mem host_ctx;
155 u64 *scratch_array;
156 struct i40iw_cqp_request *cqp_requests;
157 struct list_head cqp_avail_reqs;
158 struct list_head cqp_pending_reqs;
159 };
160
161 struct i40iw_device;
162
163 struct i40iw_ccq {
164 struct i40iw_sc_cq sc_cq;
165 spinlock_t lock; /* ccq control */
166 wait_queue_head_t waitq;
167 struct i40iw_dma_mem mem_cq;
168 struct i40iw_dma_mem shadow_area;
169 };
170
171 struct i40iw_ceq {
172 struct i40iw_sc_ceq sc_ceq;
173 struct i40iw_dma_mem mem;
174 u32 irq;
175 u32 msix_idx;
176 struct i40iw_device *iwdev;
177 struct tasklet_struct dpc_tasklet;
178 };
179
180 struct i40iw_aeq {
181 struct i40iw_sc_aeq sc_aeq;
182 struct i40iw_dma_mem mem;
183 };
184
185 struct i40iw_arp_entry {
186 u32 ip_addr[4];
187 u8 mac_addr[ETH_ALEN];
188 };
189
190 enum init_completion_state {
191 INVALID_STATE = 0,
192 INITIAL_STATE,
193 CQP_CREATED,
194 HMC_OBJS_CREATED,
195 PBLE_CHUNK_MEM,
196 CCQ_CREATED,
197 AEQ_CREATED,
198 CEQ_CREATED,
199 ILQ_CREATED,
200 IEQ_CREATED,
201 IP_ADDR_REGISTERED,
202 RDMA_DEV_REGISTERED
203 };
204
205 struct i40iw_msix_vector {
206 u32 idx;
207 u32 irq;
208 u32 cpu_affinity;
209 u32 ceq_id;
210 cpumask_t mask;
211 };
212
213 struct l2params_work {
214 struct work_struct work;
215 struct i40iw_device *iwdev;
216 struct i40iw_l2params l2params;
217 };
218
219 #define I40IW_MSIX_TABLE_SIZE 65
220
221 struct virtchnl_work {
222 struct work_struct work;
223 union {
224 struct i40iw_cqp_request *cqp_request;
225 struct i40iw_virtchnl_work_info work_info;
226 };
227 };
228
229 struct i40e_qvlist_info;
230
231 struct i40iw_device {
232 struct i40iw_ib_device *iwibdev;
233 struct net_device *netdev;
234 wait_queue_head_t vchnl_waitq;
235 struct i40iw_sc_dev sc_dev;
236 struct i40iw_sc_vsi vsi;
237 struct i40iw_handler *hdl;
238 struct i40e_info *ldev;
239 struct i40e_client *client;
240 struct i40iw_hw hw;
241 struct i40iw_cm_core cm_core;
242 u8 *mem_resources;
243 unsigned long *allocated_qps;
244 unsigned long *allocated_cqs;
245 unsigned long *allocated_mrs;
246 unsigned long *allocated_pds;
247 unsigned long *allocated_arps;
248 struct i40iw_qp **qp_table;
249 bool msix_shared;
250 u32 msix_count;
251 struct i40iw_msix_vector *iw_msixtbl;
252 struct i40e_qvlist_info *iw_qvlist;
253
254 struct i40iw_hmc_pble_rsrc *pble_rsrc;
255 struct i40iw_arp_entry *arp_table;
256 struct i40iw_cqp cqp;
257 struct i40iw_ccq ccq;
258 u32 ceqs_count;
259 struct i40iw_ceq *ceqlist;
260 struct i40iw_aeq aeq;
261 u32 arp_table_size;
262 u32 next_arp_index;
263 spinlock_t resource_lock; /* hw resource access */
264 spinlock_t qptable_lock;
265 u32 vendor_id;
266 u32 vendor_part_id;
267 u32 of_device_registered;
268
269 u32 device_cap_flags;
270 unsigned long db_start;
271 u8 resource_profile;
272 u8 max_rdma_vfs;
273 u8 max_enabled_vfs;
274 u8 max_sge;
275 u8 iw_status;
276 u8 send_term_ok;
277 bool push_mode; /* Initialized from parameter passed to driver */
278
279 /* x710 specific */
280 struct mutex pbl_mutex;
281 struct tasklet_struct dpc_tasklet;
282 struct workqueue_struct *virtchnl_wq;
283 struct virtchnl_work virtchnl_w[I40IW_MAX_PE_ENABLED_VF_COUNT];
284 struct i40iw_dma_mem obj_mem;
285 struct i40iw_dma_mem obj_next;
286 u8 *hmc_info_mem;
287 u32 sd_type;
288 struct workqueue_struct *param_wq;
289 atomic_t params_busy;
290 enum init_completion_state init_state;
291 u16 mac_ip_table_idx;
292 atomic_t vchnl_msgs;
293 u32 max_mr;
294 u32 max_qp;
295 u32 max_cq;
296 u32 max_pd;
297 u32 next_qp;
298 u32 next_cq;
299 u32 next_pd;
300 u32 max_mr_size;
301 u32 max_qp_wr;
302 u32 max_cqe;
303 u32 mr_stagmask;
304 u32 mpa_version;
305 bool dcb;
306 bool closing;
307 bool reset;
308 u32 used_pds;
309 u32 used_cqs;
310 u32 used_mrs;
311 u32 used_qps;
312 wait_queue_head_t close_wq;
313 atomic64_t use_count;
314 };
315
316 struct i40iw_ib_device {
317 struct ib_device ibdev;
318 struct i40iw_device *iwdev;
319 };
320
321 struct i40iw_handler {
322 struct list_head list;
323 struct i40e_client *client;
324 struct i40iw_device device;
325 struct i40e_info ldev;
326 };
327
328 /**
329 * i40iw_fw_major_ver - get firmware major version
330 * @dev: iwarp device
331 **/
i40iw_fw_major_ver(struct i40iw_sc_dev * dev)332 static inline u64 i40iw_fw_major_ver(struct i40iw_sc_dev *dev)
333 {
334 return RS_64(dev->feature_info[I40IW_FEATURE_FW_INFO],
335 I40IW_FW_VER_MAJOR);
336 }
337
338 /**
339 * i40iw_fw_minor_ver - get firmware minor version
340 * @dev: iwarp device
341 **/
i40iw_fw_minor_ver(struct i40iw_sc_dev * dev)342 static inline u64 i40iw_fw_minor_ver(struct i40iw_sc_dev *dev)
343 {
344 return RS_64(dev->feature_info[I40IW_FEATURE_FW_INFO],
345 I40IW_FW_VER_MINOR);
346 }
347
348 /**
349 * to_iwdev - get device
350 * @ibdev: ib device
351 **/
to_iwdev(struct ib_device * ibdev)352 static inline struct i40iw_device *to_iwdev(struct ib_device *ibdev)
353 {
354 return container_of(ibdev, struct i40iw_ib_device, ibdev)->iwdev;
355 }
356
357 /**
358 * to_ucontext - get user context
359 * @ibucontext: ib user context
360 **/
to_ucontext(struct ib_ucontext * ibucontext)361 static inline struct i40iw_ucontext *to_ucontext(struct ib_ucontext *ibucontext)
362 {
363 return container_of(ibucontext, struct i40iw_ucontext, ibucontext);
364 }
365
366 /**
367 * to_iwpd - get protection domain
368 * @ibpd: ib pd
369 **/
to_iwpd(struct ib_pd * ibpd)370 static inline struct i40iw_pd *to_iwpd(struct ib_pd *ibpd)
371 {
372 return container_of(ibpd, struct i40iw_pd, ibpd);
373 }
374
375 /**
376 * to_iwmr - get device memory region
377 * @ibdev: ib memory region
378 **/
to_iwmr(struct ib_mr * ibmr)379 static inline struct i40iw_mr *to_iwmr(struct ib_mr *ibmr)
380 {
381 return container_of(ibmr, struct i40iw_mr, ibmr);
382 }
383
384 /**
385 * to_iwmw - get device memory window
386 * @ibmw: ib memory window
387 **/
to_iwmw(struct ib_mw * ibmw)388 static inline struct i40iw_mr *to_iwmw(struct ib_mw *ibmw)
389 {
390 return container_of(ibmw, struct i40iw_mr, ibmw);
391 }
392
393 /**
394 * to_iwcq - get completion queue
395 * @ibcq: ib cqdevice
396 **/
to_iwcq(struct ib_cq * ibcq)397 static inline struct i40iw_cq *to_iwcq(struct ib_cq *ibcq)
398 {
399 return container_of(ibcq, struct i40iw_cq, ibcq);
400 }
401
402 /**
403 * to_iwqp - get device qp
404 * @ibqp: ib qp
405 **/
to_iwqp(struct ib_qp * ibqp)406 static inline struct i40iw_qp *to_iwqp(struct ib_qp *ibqp)
407 {
408 return container_of(ibqp, struct i40iw_qp, ibqp);
409 }
410
411 /* i40iw.c */
412 void i40iw_qp_add_ref(struct ib_qp *ibqp);
413 void i40iw_qp_rem_ref(struct ib_qp *ibqp);
414 struct ib_qp *i40iw_get_qp(struct ib_device *, int);
415
416 void i40iw_flush_wqes(struct i40iw_device *iwdev,
417 struct i40iw_qp *qp);
418
419 void i40iw_manage_arp_cache(struct i40iw_device *iwdev,
420 unsigned char *mac_addr,
421 u32 *ip_addr,
422 bool ipv4,
423 u32 action);
424
425 int i40iw_manage_apbvt(struct i40iw_device *iwdev,
426 u16 accel_local_port,
427 bool add_port);
428
429 struct i40iw_cqp_request *i40iw_get_cqp_request(struct i40iw_cqp *cqp, bool wait);
430 void i40iw_free_cqp_request(struct i40iw_cqp *cqp, struct i40iw_cqp_request *cqp_request);
431 void i40iw_put_cqp_request(struct i40iw_cqp *cqp, struct i40iw_cqp_request *cqp_request);
432
433 /**
434 * i40iw_alloc_resource - allocate a resource
435 * @iwdev: device pointer
436 * @resource_array: resource bit array:
437 * @max_resources: maximum resource number
438 * @req_resources_num: Allocated resource number
439 * @next: next free id
440 **/
i40iw_alloc_resource(struct i40iw_device * iwdev,unsigned long * resource_array,u32 max_resources,u32 * req_resource_num,u32 * next)441 static inline int i40iw_alloc_resource(struct i40iw_device *iwdev,
442 unsigned long *resource_array,
443 u32 max_resources,
444 u32 *req_resource_num,
445 u32 *next)
446 {
447 u32 resource_num;
448 unsigned long flags;
449
450 spin_lock_irqsave(&iwdev->resource_lock, flags);
451 resource_num = find_next_zero_bit(resource_array, max_resources, *next);
452 if (resource_num >= max_resources) {
453 resource_num = find_first_zero_bit(resource_array, max_resources);
454 if (resource_num >= max_resources) {
455 spin_unlock_irqrestore(&iwdev->resource_lock, flags);
456 return -EOVERFLOW;
457 }
458 }
459 set_bit(resource_num, resource_array);
460 *next = resource_num + 1;
461 if (*next == max_resources)
462 *next = 0;
463 *req_resource_num = resource_num;
464 spin_unlock_irqrestore(&iwdev->resource_lock, flags);
465
466 return 0;
467 }
468
469 /**
470 * i40iw_is_resource_allocated - detrmine if resource is
471 * allocated
472 * @iwdev: device pointer
473 * @resource_array: resource array for the resource_num
474 * @resource_num: resource number to check
475 **/
i40iw_is_resource_allocated(struct i40iw_device * iwdev,unsigned long * resource_array,u32 resource_num)476 static inline bool i40iw_is_resource_allocated(struct i40iw_device *iwdev,
477 unsigned long *resource_array,
478 u32 resource_num)
479 {
480 bool bit_is_set;
481 unsigned long flags;
482
483 spin_lock_irqsave(&iwdev->resource_lock, flags);
484
485 bit_is_set = test_bit(resource_num, resource_array);
486 spin_unlock_irqrestore(&iwdev->resource_lock, flags);
487
488 return bit_is_set;
489 }
490
491 /**
492 * i40iw_free_resource - free a resource
493 * @iwdev: device pointer
494 * @resource_array: resource array for the resource_num
495 * @resource_num: resource number to free
496 **/
i40iw_free_resource(struct i40iw_device * iwdev,unsigned long * resource_array,u32 resource_num)497 static inline void i40iw_free_resource(struct i40iw_device *iwdev,
498 unsigned long *resource_array,
499 u32 resource_num)
500 {
501 unsigned long flags;
502
503 spin_lock_irqsave(&iwdev->resource_lock, flags);
504 clear_bit(resource_num, resource_array);
505 spin_unlock_irqrestore(&iwdev->resource_lock, flags);
506 }
507
508 /**
509 * to_iwhdl - Get the handler from the device pointer
510 * @iwdev: device pointer
511 **/
to_iwhdl(struct i40iw_device * iw_dev)512 static inline struct i40iw_handler *to_iwhdl(struct i40iw_device *iw_dev)
513 {
514 return container_of(iw_dev, struct i40iw_handler, device);
515 }
516
517 struct i40iw_handler *i40iw_find_netdev(struct net_device *netdev);
518
519 /**
520 * iw_init_resources -
521 */
522 u32 i40iw_initialize_hw_resources(struct i40iw_device *iwdev);
523
524 int i40iw_register_rdma_device(struct i40iw_device *iwdev);
525 void i40iw_port_ibevent(struct i40iw_device *iwdev);
526 void i40iw_cm_disconn(struct i40iw_qp *iwqp);
527 void i40iw_cm_disconn_worker(void *);
528 int mini_cm_recv_pkt(struct i40iw_cm_core *, struct i40iw_device *,
529 struct sk_buff *);
530
531 enum i40iw_status_code i40iw_handle_cqp_op(struct i40iw_device *iwdev,
532 struct i40iw_cqp_request *cqp_request);
533 enum i40iw_status_code i40iw_add_mac_addr(struct i40iw_device *iwdev,
534 u8 *mac_addr, u8 *mac_index);
535 int i40iw_modify_qp(struct ib_qp *, struct ib_qp_attr *, int, struct ib_udata *);
536 void i40iw_cq_wq_destroy(struct i40iw_device *iwdev, struct i40iw_sc_cq *cq);
537
538 void i40iw_cleanup_pending_cqp_op(struct i40iw_device *iwdev);
539 void i40iw_rem_pdusecount(struct i40iw_pd *iwpd, struct i40iw_device *iwdev);
540 void i40iw_add_pdusecount(struct i40iw_pd *iwpd);
541 void i40iw_rem_devusecount(struct i40iw_device *iwdev);
542 void i40iw_add_devusecount(struct i40iw_device *iwdev);
543 void i40iw_hw_modify_qp(struct i40iw_device *iwdev, struct i40iw_qp *iwqp,
544 struct i40iw_modify_qp_info *info, bool wait);
545
546 void i40iw_qp_suspend_resume(struct i40iw_sc_dev *dev,
547 struct i40iw_sc_qp *qp,
548 bool suspend);
549 enum i40iw_status_code i40iw_manage_qhash(struct i40iw_device *iwdev,
550 struct i40iw_cm_info *cminfo,
551 enum i40iw_quad_entry_type etype,
552 enum i40iw_quad_hash_manage_type mtype,
553 void *cmnode,
554 bool wait);
555 void i40iw_receive_ilq(struct i40iw_sc_vsi *vsi, struct i40iw_puda_buf *rbuf);
556 void i40iw_free_sqbuf(struct i40iw_sc_vsi *vsi, void *bufp);
557 void i40iw_free_qp_resources(struct i40iw_qp *iwqp);
558
559 enum i40iw_status_code i40iw_obj_aligned_mem(struct i40iw_device *iwdev,
560 struct i40iw_dma_mem *memptr,
561 u32 size, u32 mask);
562
563 void i40iw_request_reset(struct i40iw_device *iwdev);
564 void i40iw_destroy_rdma_device(struct i40iw_ib_device *iwibdev);
565 int i40iw_setup_cm_core(struct i40iw_device *iwdev);
566 void i40iw_cleanup_cm_core(struct i40iw_cm_core *cm_core);
567 void i40iw_process_ceq(struct i40iw_device *, struct i40iw_ceq *iwceq);
568 void i40iw_process_aeq(struct i40iw_device *);
569 void i40iw_next_iw_state(struct i40iw_qp *iwqp,
570 u8 state, u8 del_hash,
571 u8 term, u8 term_len);
572 int i40iw_send_syn(struct i40iw_cm_node *cm_node, u32 sendack);
573 int i40iw_send_reset(struct i40iw_cm_node *cm_node);
574 struct i40iw_cm_node *i40iw_find_node(struct i40iw_cm_core *cm_core,
575 u16 rem_port,
576 u32 *rem_addr,
577 u16 loc_port,
578 u32 *loc_addr,
579 bool add_refcnt,
580 bool accelerated_list);
581
582 enum i40iw_status_code i40iw_hw_flush_wqes(struct i40iw_device *iwdev,
583 struct i40iw_sc_qp *qp,
584 struct i40iw_qp_flush_info *info,
585 bool wait);
586
587 void i40iw_gen_ae(struct i40iw_device *iwdev,
588 struct i40iw_sc_qp *qp,
589 struct i40iw_gen_ae_info *info,
590 bool wait);
591
592 void i40iw_copy_ip_ntohl(u32 *dst, __be32 *src);
593 struct ib_mr *i40iw_reg_phys_mr(struct ib_pd *ib_pd,
594 u64 addr,
595 u64 size,
596 int acc,
597 u64 *iova_start);
598
599 int i40iw_inetaddr_event(struct notifier_block *notifier,
600 unsigned long event,
601 void *ptr);
602 int i40iw_inet6addr_event(struct notifier_block *notifier,
603 unsigned long event,
604 void *ptr);
605 int i40iw_net_event(struct notifier_block *notifier,
606 unsigned long event,
607 void *ptr);
608 int i40iw_netdevice_event(struct notifier_block *notifier,
609 unsigned long event,
610 void *ptr);
611
612 #endif
613
