Commit | Line | Data |
---|---|---|
71ee6730 DS |
1 | /* This file is part of the Emulex RoCE Device Driver for |
2 | * RoCE (RDMA over Converged Ethernet) adapters. | |
3 | * Copyright (C) 2012-2015 Emulex. All rights reserved. | |
4 | * EMULEX and SLI are trademarks of Emulex. | |
5 | * www.emulex.com | |
6 | * | |
7 | * This software is available to you under a choice of one of two licenses. | |
8 | * You may choose to be licensed under the terms of the GNU General Public | |
9 | * License (GPL) Version 2, available from the file COPYING in the main | |
10 | * directory of this source tree, or the BSD license below: | |
11 | * | |
12 | * Redistribution and use in source and binary forms, with or without | |
13 | * modification, are permitted provided that the following conditions | |
14 | * are met: | |
15 | * | |
16 | * - Redistributions of source code must retain the above copyright notice, | |
17 | * this list of conditions and the following disclaimer. | |
18 | * | |
19 | * - Redistributions in binary form must reproduce the above copyright | |
20 | * notice, this list of conditions and the following disclaimer in | |
21 | * the documentation and/or other materials provided with the distribution. | |
22 | * | |
23 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
24 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,THE | |
25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
26 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
27 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
28 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
29 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | |
30 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
31 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
32 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
33 | * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
fe2caefc PP |
34 | * |
35 | * Contact Information: | |
36 | * linux-drivers@emulex.com | |
37 | * | |
38 | * Emulex | |
39 | * 3333 Susan Street | |
40 | * Costa Mesa, CA 92626 | |
71ee6730 | 41 | */ |
fe2caefc PP |
42 | |
43 | #include <linux/module.h> | |
fe2caefc PP |
44 | #include <linux/idr.h> |
45 | #include <rdma/ib_verbs.h> | |
46 | #include <rdma/ib_user_verbs.h> | |
47 | #include <rdma/ib_addr.h> | |
337877a4 | 48 | #include <rdma/ib_mad.h> |
fe2caefc PP |
49 | |
50 | #include <linux/netdevice.h> | |
51 | #include <net/addrconf.h> | |
52 | ||
53 | #include "ocrdma.h" | |
54 | #include "ocrdma_verbs.h" | |
55 | #include "ocrdma_ah.h" | |
56 | #include "be_roce.h" | |
57 | #include "ocrdma_hw.h" | |
a51f06e1 | 58 | #include "ocrdma_stats.h" |
38754397 | 59 | #include "ocrdma_abi.h" |
fe2caefc | 60 | |
0154410b DS |
61 | MODULE_VERSION(OCRDMA_ROCE_DRV_VERSION); |
62 | MODULE_DESCRIPTION(OCRDMA_ROCE_DRV_DESC " " OCRDMA_ROCE_DRV_VERSION); | |
fe2caefc | 63 | MODULE_AUTHOR("Emulex Corporation"); |
b8f5595e | 64 | MODULE_LICENSE("Dual BSD/GPL"); |
fe2caefc | 65 | |
fe2caefc PP |
66 | static DEFINE_IDR(ocrdma_dev_id); |
67 | ||
fe2caefc PP |
68 | void ocrdma_get_guid(struct ocrdma_dev *dev, u8 *guid) |
69 | { | |
70 | u8 mac_addr[6]; | |
71 | ||
72 | memcpy(&mac_addr[0], &dev->nic_info.mac_addr[0], ETH_ALEN); | |
73 | guid[0] = mac_addr[0] ^ 2; | |
74 | guid[1] = mac_addr[1]; | |
75 | guid[2] = mac_addr[2]; | |
76 | guid[3] = 0xff; | |
77 | guid[4] = 0xfe; | |
78 | guid[5] = mac_addr[3]; | |
79 | guid[6] = mac_addr[4]; | |
80 | guid[7] = mac_addr[5]; | |
81 | } | |
fe2caefc PP |
82 | static enum rdma_link_layer ocrdma_link_layer(struct ib_device *device, |
83 | u8 port_num) | |
84 | { | |
85 | return IB_LINK_LAYER_ETHERNET; | |
86 | } | |
87 | ||
7738613e IW |
88 | static int ocrdma_port_immutable(struct ib_device *ibdev, u8 port_num, |
89 | struct ib_port_immutable *immutable) | |
90 | { | |
91 | struct ib_port_attr attr; | |
92 | int err; | |
93 | ||
94 | err = ocrdma_query_port(ibdev, port_num, &attr); | |
95 | if (err) | |
96 | return err; | |
97 | ||
98 | immutable->pkey_tbl_len = attr.pkey_tbl_len; | |
99 | immutable->gid_tbl_len = attr.gid_tbl_len; | |
f9b22e35 | 100 | immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE; |
337877a4 | 101 | immutable->max_mad_size = IB_MGMT_MAD_SIZE; |
7738613e IW |
102 | |
103 | return 0; | |
104 | } | |
105 | ||
abe3afac | 106 | static int ocrdma_register_device(struct ocrdma_dev *dev) |
fe2caefc PP |
107 | { |
108 | strlcpy(dev->ibdev.name, "ocrdma%d", IB_DEVICE_NAME_MAX); | |
109 | ocrdma_get_guid(dev, (u8 *)&dev->ibdev.node_guid); | |
110 | memcpy(dev->ibdev.node_desc, OCRDMA_NODE_DESC, | |
111 | sizeof(OCRDMA_NODE_DESC)); | |
112 | dev->ibdev.owner = THIS_MODULE; | |
38754397 | 113 | dev->ibdev.uverbs_abi_ver = OCRDMA_ABI_VERSION; |
fe2caefc PP |
114 | dev->ibdev.uverbs_cmd_mask = |
115 | OCRDMA_UVERBS(GET_CONTEXT) | | |
116 | OCRDMA_UVERBS(QUERY_DEVICE) | | |
117 | OCRDMA_UVERBS(QUERY_PORT) | | |
118 | OCRDMA_UVERBS(ALLOC_PD) | | |
119 | OCRDMA_UVERBS(DEALLOC_PD) | | |
120 | OCRDMA_UVERBS(REG_MR) | | |
121 | OCRDMA_UVERBS(DEREG_MR) | | |
122 | OCRDMA_UVERBS(CREATE_COMP_CHANNEL) | | |
123 | OCRDMA_UVERBS(CREATE_CQ) | | |
124 | OCRDMA_UVERBS(RESIZE_CQ) | | |
125 | OCRDMA_UVERBS(DESTROY_CQ) | | |
126 | OCRDMA_UVERBS(REQ_NOTIFY_CQ) | | |
127 | OCRDMA_UVERBS(CREATE_QP) | | |
128 | OCRDMA_UVERBS(MODIFY_QP) | | |
129 | OCRDMA_UVERBS(QUERY_QP) | | |
130 | OCRDMA_UVERBS(DESTROY_QP) | | |
131 | OCRDMA_UVERBS(POLL_CQ) | | |
132 | OCRDMA_UVERBS(POST_SEND) | | |
133 | OCRDMA_UVERBS(POST_RECV); | |
134 | ||
135 | dev->ibdev.uverbs_cmd_mask |= | |
136 | OCRDMA_UVERBS(CREATE_AH) | | |
137 | OCRDMA_UVERBS(MODIFY_AH) | | |
138 | OCRDMA_UVERBS(QUERY_AH) | | |
139 | OCRDMA_UVERBS(DESTROY_AH); | |
140 | ||
141 | dev->ibdev.node_type = RDMA_NODE_IB_CA; | |
142 | dev->ibdev.phys_port_cnt = 1; | |
0c0eacdc | 143 | dev->ibdev.num_comp_vectors = dev->eq_cnt; |
fe2caefc PP |
144 | |
145 | /* mandatory verbs. */ | |
146 | dev->ibdev.query_device = ocrdma_query_device; | |
147 | dev->ibdev.query_port = ocrdma_query_port; | |
148 | dev->ibdev.modify_port = ocrdma_modify_port; | |
149 | dev->ibdev.query_gid = ocrdma_query_gid; | |
cc36929e SK |
150 | dev->ibdev.get_netdev = ocrdma_get_netdev; |
151 | dev->ibdev.add_gid = ocrdma_add_gid; | |
152 | dev->ibdev.del_gid = ocrdma_del_gid; | |
fe2caefc PP |
153 | dev->ibdev.get_link_layer = ocrdma_link_layer; |
154 | dev->ibdev.alloc_pd = ocrdma_alloc_pd; | |
155 | dev->ibdev.dealloc_pd = ocrdma_dealloc_pd; | |
156 | ||
157 | dev->ibdev.create_cq = ocrdma_create_cq; | |
158 | dev->ibdev.destroy_cq = ocrdma_destroy_cq; | |
159 | dev->ibdev.resize_cq = ocrdma_resize_cq; | |
160 | ||
161 | dev->ibdev.create_qp = ocrdma_create_qp; | |
162 | dev->ibdev.modify_qp = ocrdma_modify_qp; | |
163 | dev->ibdev.query_qp = ocrdma_query_qp; | |
164 | dev->ibdev.destroy_qp = ocrdma_destroy_qp; | |
165 | ||
166 | dev->ibdev.query_pkey = ocrdma_query_pkey; | |
167 | dev->ibdev.create_ah = ocrdma_create_ah; | |
168 | dev->ibdev.destroy_ah = ocrdma_destroy_ah; | |
169 | dev->ibdev.query_ah = ocrdma_query_ah; | |
170 | dev->ibdev.modify_ah = ocrdma_modify_ah; | |
171 | ||
172 | dev->ibdev.poll_cq = ocrdma_poll_cq; | |
173 | dev->ibdev.post_send = ocrdma_post_send; | |
174 | dev->ibdev.post_recv = ocrdma_post_recv; | |
175 | dev->ibdev.req_notify_cq = ocrdma_arm_cq; | |
176 | ||
177 | dev->ibdev.get_dma_mr = ocrdma_get_dma_mr; | |
cffce990 | 178 | dev->ibdev.reg_phys_mr = ocrdma_reg_kernel_mr; |
fe2caefc PP |
179 | dev->ibdev.dereg_mr = ocrdma_dereg_mr; |
180 | dev->ibdev.reg_user_mr = ocrdma_reg_user_mr; | |
181 | ||
cacb7d59 | 182 | dev->ibdev.alloc_mr = ocrdma_alloc_mr; |
2eaa1c56 | 183 | dev->ibdev.map_mr_sg = ocrdma_map_mr_sg; |
7c33880c NG |
184 | dev->ibdev.alloc_fast_reg_page_list = ocrdma_alloc_frmr_page_list; |
185 | dev->ibdev.free_fast_reg_page_list = ocrdma_free_frmr_page_list; | |
186 | ||
fe2caefc PP |
187 | /* mandatory to support user space verbs consumer. */ |
188 | dev->ibdev.alloc_ucontext = ocrdma_alloc_ucontext; | |
189 | dev->ibdev.dealloc_ucontext = ocrdma_dealloc_ucontext; | |
190 | dev->ibdev.mmap = ocrdma_mmap; | |
191 | dev->ibdev.dma_device = &dev->nic_info.pdev->dev; | |
192 | ||
193 | dev->ibdev.process_mad = ocrdma_process_mad; | |
7738613e | 194 | dev->ibdev.get_port_immutable = ocrdma_port_immutable; |
fe2caefc | 195 | |
21c3391a | 196 | if (ocrdma_get_asic_type(dev) == OCRDMA_ASIC_GEN_SKH_R) { |
fe2caefc PP |
197 | dev->ibdev.uverbs_cmd_mask |= |
198 | OCRDMA_UVERBS(CREATE_SRQ) | | |
199 | OCRDMA_UVERBS(MODIFY_SRQ) | | |
200 | OCRDMA_UVERBS(QUERY_SRQ) | | |
201 | OCRDMA_UVERBS(DESTROY_SRQ) | | |
202 | OCRDMA_UVERBS(POST_SRQ_RECV); | |
203 | ||
204 | dev->ibdev.create_srq = ocrdma_create_srq; | |
205 | dev->ibdev.modify_srq = ocrdma_modify_srq; | |
206 | dev->ibdev.query_srq = ocrdma_query_srq; | |
207 | dev->ibdev.destroy_srq = ocrdma_destroy_srq; | |
208 | dev->ibdev.post_srq_recv = ocrdma_post_srq_recv; | |
209 | } | |
210 | return ib_register_device(&dev->ibdev, NULL); | |
211 | } | |
212 | ||
213 | static int ocrdma_alloc_resources(struct ocrdma_dev *dev) | |
214 | { | |
215 | mutex_init(&dev->dev_lock); | |
fe2caefc PP |
216 | dev->cq_tbl = kzalloc(sizeof(struct ocrdma_cq *) * |
217 | OCRDMA_MAX_CQ, GFP_KERNEL); | |
218 | if (!dev->cq_tbl) | |
219 | goto alloc_err; | |
220 | ||
221 | if (dev->attr.max_qp) { | |
222 | dev->qp_tbl = kzalloc(sizeof(struct ocrdma_qp *) * | |
223 | OCRDMA_MAX_QP, GFP_KERNEL); | |
224 | if (!dev->qp_tbl) | |
225 | goto alloc_err; | |
226 | } | |
4f1df844 SX |
227 | |
228 | dev->stag_arr = kzalloc(sizeof(u64) * OCRDMA_MAX_STAG, GFP_KERNEL); | |
229 | if (dev->stag_arr == NULL) | |
230 | goto alloc_err; | |
231 | ||
9ba1377d MA |
232 | ocrdma_alloc_pd_pool(dev); |
233 | ||
fe2caefc PP |
234 | spin_lock_init(&dev->av_tbl.lock); |
235 | spin_lock_init(&dev->flush_q_lock); | |
236 | return 0; | |
237 | alloc_err: | |
ef99c4c2 | 238 | pr_err("%s(%d) error.\n", __func__, dev->id); |
fe2caefc PP |
239 | return -ENOMEM; |
240 | } | |
241 | ||
242 | static void ocrdma_free_resources(struct ocrdma_dev *dev) | |
243 | { | |
4f1df844 | 244 | kfree(dev->stag_arr); |
fe2caefc PP |
245 | kfree(dev->qp_tbl); |
246 | kfree(dev->cq_tbl); | |
fe2caefc PP |
247 | } |
248 | ||
334b8db3 SX |
249 | /* OCRDMA sysfs interface */ |
250 | static ssize_t show_rev(struct device *device, struct device_attribute *attr, | |
251 | char *buf) | |
252 | { | |
253 | struct ocrdma_dev *dev = dev_get_drvdata(device); | |
254 | ||
255 | return scnprintf(buf, PAGE_SIZE, "0x%x\n", dev->nic_info.pdev->vendor); | |
256 | } | |
257 | ||
258 | static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr, | |
259 | char *buf) | |
260 | { | |
261 | struct ocrdma_dev *dev = dev_get_drvdata(device); | |
262 | ||
4808b184 SX |
263 | return scnprintf(buf, PAGE_SIZE, "%s\n", &dev->attr.fw_ver[0]); |
264 | } | |
265 | ||
266 | static ssize_t show_hca_type(struct device *device, | |
267 | struct device_attribute *attr, char *buf) | |
268 | { | |
269 | struct ocrdma_dev *dev = dev_get_drvdata(device); | |
270 | ||
271 | return scnprintf(buf, PAGE_SIZE, "%s\n", &dev->model_number[0]); | |
334b8db3 SX |
272 | } |
273 | ||
274 | static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); | |
275 | static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); | |
4808b184 | 276 | static DEVICE_ATTR(hca_type, S_IRUGO, show_hca_type, NULL); |
334b8db3 SX |
277 | |
278 | static struct device_attribute *ocrdma_attributes[] = { | |
279 | &dev_attr_hw_rev, | |
4808b184 SX |
280 | &dev_attr_fw_ver, |
281 | &dev_attr_hca_type | |
334b8db3 SX |
282 | }; |
283 | ||
284 | static void ocrdma_remove_sysfiles(struct ocrdma_dev *dev) | |
285 | { | |
286 | int i; | |
287 | ||
288 | for (i = 0; i < ARRAY_SIZE(ocrdma_attributes); i++) | |
289 | device_remove_file(&dev->ibdev.dev, ocrdma_attributes[i]); | |
290 | } | |
291 | ||
fe2caefc PP |
292 | static struct ocrdma_dev *ocrdma_add(struct be_dev_info *dev_info) |
293 | { | |
334b8db3 | 294 | int status = 0, i; |
fe2caefc PP |
295 | struct ocrdma_dev *dev; |
296 | ||
297 | dev = (struct ocrdma_dev *)ib_alloc_device(sizeof(struct ocrdma_dev)); | |
298 | if (!dev) { | |
ef99c4c2 | 299 | pr_err("Unable to allocate ib device\n"); |
fe2caefc PP |
300 | return NULL; |
301 | } | |
302 | dev->mbx_cmd = kzalloc(sizeof(struct ocrdma_mqe_emb_cmd), GFP_KERNEL); | |
303 | if (!dev->mbx_cmd) | |
304 | goto idr_err; | |
305 | ||
306 | memcpy(&dev->nic_info, dev_info, sizeof(*dev_info)); | |
cffcd59f | 307 | dev->id = idr_alloc(&ocrdma_dev_id, NULL, 0, 0, GFP_KERNEL); |
fe2caefc PP |
308 | if (dev->id < 0) |
309 | goto idr_err; | |
310 | ||
311 | status = ocrdma_init_hw(dev); | |
312 | if (status) | |
313 | goto init_err; | |
314 | ||
315 | status = ocrdma_alloc_resources(dev); | |
316 | if (status) | |
317 | goto alloc_err; | |
318 | ||
31dbdd9a | 319 | ocrdma_init_service_level(dev); |
fe2caefc PP |
320 | status = ocrdma_register_device(dev); |
321 | if (status) | |
322 | goto alloc_err; | |
323 | ||
334b8db3 SX |
324 | for (i = 0; i < ARRAY_SIZE(ocrdma_attributes); i++) |
325 | if (device_create_file(&dev->ibdev.dev, ocrdma_attributes[i])) | |
326 | goto sysfs_err; | |
a51f06e1 SX |
327 | /* Init stats */ |
328 | ocrdma_add_port_stats(dev); | |
b4dbe8d5 MA |
329 | /* Interrupt Moderation */ |
330 | INIT_DELAYED_WORK(&dev->eqd_work, ocrdma_eqd_set_task); | |
331 | schedule_delayed_work(&dev->eqd_work, msecs_to_jiffies(1000)); | |
a51f06e1 SX |
332 | |
333 | pr_info("%s %s: %s \"%s\" port %d\n", | |
334 | dev_name(&dev->nic_info.pdev->dev), hca_name(dev), | |
335 | port_speed_string(dev), dev->model_number, | |
336 | dev->hba_port_num); | |
337 | pr_info("%s ocrdma%d driver loaded successfully\n", | |
338 | dev_name(&dev->nic_info.pdev->dev), dev->id); | |
fe2caefc PP |
339 | return dev; |
340 | ||
334b8db3 SX |
341 | sysfs_err: |
342 | ocrdma_remove_sysfiles(dev); | |
fe2caefc PP |
343 | alloc_err: |
344 | ocrdma_free_resources(dev); | |
345 | ocrdma_cleanup_hw(dev); | |
346 | init_err: | |
347 | idr_remove(&ocrdma_dev_id, dev->id); | |
348 | idr_err: | |
349 | kfree(dev->mbx_cmd); | |
350 | ib_dealloc_device(&dev->ibdev); | |
ef99c4c2 | 351 | pr_err("%s() leaving. ret=%d\n", __func__, status); |
fe2caefc PP |
352 | return NULL; |
353 | } | |
354 | ||
5a85f5e9 | 355 | static void ocrdma_remove_free(struct ocrdma_dev *dev) |
fe2caefc | 356 | { |
fe2caefc | 357 | |
fe2caefc PP |
358 | idr_remove(&ocrdma_dev_id, dev->id); |
359 | kfree(dev->mbx_cmd); | |
360 | ib_dealloc_device(&dev->ibdev); | |
361 | } | |
362 | ||
3e4d60a8 SL |
363 | static void ocrdma_remove(struct ocrdma_dev *dev) |
364 | { | |
365 | /* first unregister with stack to stop all the active traffic | |
366 | * of the registered clients. | |
367 | */ | |
b4dbe8d5 | 368 | cancel_delayed_work_sync(&dev->eqd_work); |
334b8db3 | 369 | ocrdma_remove_sysfiles(dev); |
3e4d60a8 | 370 | ib_unregister_device(&dev->ibdev); |
4b8180aa MA |
371 | |
372 | ocrdma_rem_port_stats(dev); | |
1852d1da NG |
373 | ocrdma_free_resources(dev); |
374 | ocrdma_cleanup_hw(dev); | |
5a85f5e9 | 375 | ocrdma_remove_free(dev); |
3e4d60a8 SL |
376 | } |
377 | ||
fe2caefc PP |
378 | static int ocrdma_open(struct ocrdma_dev *dev) |
379 | { | |
380 | struct ib_event port_event; | |
381 | ||
382 | port_event.event = IB_EVENT_PORT_ACTIVE; | |
383 | port_event.element.port_num = 1; | |
384 | port_event.device = &dev->ibdev; | |
385 | ib_dispatch_event(&port_event); | |
386 | return 0; | |
387 | } | |
388 | ||
389 | static int ocrdma_close(struct ocrdma_dev *dev) | |
390 | { | |
391 | int i; | |
392 | struct ocrdma_qp *qp, **cur_qp; | |
393 | struct ib_event err_event; | |
394 | struct ib_qp_attr attrs; | |
395 | int attr_mask = IB_QP_STATE; | |
396 | ||
397 | attrs.qp_state = IB_QPS_ERR; | |
398 | mutex_lock(&dev->dev_lock); | |
399 | if (dev->qp_tbl) { | |
400 | cur_qp = dev->qp_tbl; | |
401 | for (i = 0; i < OCRDMA_MAX_QP; i++) { | |
402 | qp = cur_qp[i]; | |
fad51b7d | 403 | if (qp && qp->ibqp.qp_type != IB_QPT_GSI) { |
fe2caefc PP |
404 | /* change the QP state to ERROR */ |
405 | _ocrdma_modify_qp(&qp->ibqp, &attrs, attr_mask); | |
406 | ||
407 | err_event.event = IB_EVENT_QP_FATAL; | |
408 | err_event.element.qp = &qp->ibqp; | |
409 | err_event.device = &dev->ibdev; | |
410 | ib_dispatch_event(&err_event); | |
411 | } | |
412 | } | |
413 | } | |
414 | mutex_unlock(&dev->dev_lock); | |
415 | ||
416 | err_event.event = IB_EVENT_PORT_ERR; | |
417 | err_event.element.port_num = 1; | |
418 | err_event.device = &dev->ibdev; | |
419 | ib_dispatch_event(&err_event); | |
420 | return 0; | |
421 | } | |
422 | ||
efe45937 DS |
423 | static void ocrdma_shutdown(struct ocrdma_dev *dev) |
424 | { | |
425 | ocrdma_close(dev); | |
426 | ocrdma_remove(dev); | |
427 | } | |
428 | ||
fe2caefc PP |
429 | /* event handling via NIC driver ensures that all the NIC specific |
430 | * initialization done before RoCE driver notifies | |
431 | * event to stack. | |
432 | */ | |
433 | static void ocrdma_event_handler(struct ocrdma_dev *dev, u32 event) | |
434 | { | |
435 | switch (event) { | |
436 | case BE_DEV_UP: | |
437 | ocrdma_open(dev); | |
438 | break; | |
439 | case BE_DEV_DOWN: | |
440 | ocrdma_close(dev); | |
441 | break; | |
efe45937 DS |
442 | case BE_DEV_SHUTDOWN: |
443 | ocrdma_shutdown(dev); | |
444 | break; | |
2b50176d | 445 | } |
fe2caefc PP |
446 | } |
447 | ||
abe3afac | 448 | static struct ocrdma_driver ocrdma_drv = { |
fe2caefc PP |
449 | .name = "ocrdma_driver", |
450 | .add = ocrdma_add, | |
451 | .remove = ocrdma_remove, | |
452 | .state_change_handler = ocrdma_event_handler, | |
b6b87d2e | 453 | .be_abi_version = OCRDMA_BE_ROCE_ABI_VERSION, |
fe2caefc PP |
454 | }; |
455 | ||
456 | static int __init ocrdma_init_module(void) | |
457 | { | |
458 | int status; | |
459 | ||
a51f06e1 SX |
460 | ocrdma_init_debugfs(); |
461 | ||
fe2caefc PP |
462 | status = be_roce_register_driver(&ocrdma_drv); |
463 | if (status) | |
2d8f57d5 | 464 | goto err_be_reg; |
34955669 | 465 | |
2d8f57d5 SX |
466 | return 0; |
467 | ||
468 | err_be_reg: | |
cc36929e | 469 | |
fe2caefc PP |
470 | return status; |
471 | } | |
472 | ||
473 | static void __exit ocrdma_exit_module(void) | |
474 | { | |
475 | be_roce_unregister_driver(&ocrdma_drv); | |
a51f06e1 | 476 | ocrdma_rem_debugfs(); |
d8b2ba7c | 477 | idr_destroy(&ocrdma_dev_id); |
fe2caefc PP |
478 | } |
479 | ||
480 | module_init(ocrdma_init_module); | |
481 | module_exit(ocrdma_exit_module); |