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Revert "[PATCH] paravirt: Add startup infrastructure for paravirtualization"
[pv_ops_mirror.git] / drivers / infiniband / hw / mlx4 / main.c
blob688ecb4c39f340d7dfb9002e73693775018a9ea2
1 /*
2 * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33 #include <linux/module.h>
34 #include <linux/init.h>
35 #include <linux/errno.h>
36
37 #include <rdma/ib_smi.h>
38 #include <rdma/ib_user_verbs.h>
39
40 #include <linux/mlx4/driver.h>
41 #include <linux/mlx4/cmd.h>
42
43 #include "mlx4_ib.h"
44 #include "user.h"
45
46 #define DRV_NAME "mlx4_ib"
47 #define DRV_VERSION "0.01"
48 #define DRV_RELDATE "May 1, 2006"
49
50 MODULE_AUTHOR("Roland Dreier");
51 MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver");
52 MODULE_LICENSE("Dual BSD/GPL");
53 MODULE_VERSION(DRV_VERSION);
54
55 static const char mlx4_ib_version[] __devinitdata =
56 DRV_NAME ": Mellanox ConnectX InfiniBand driver v"
57 DRV_VERSION " (" DRV_RELDATE ")\n";
58
59 static void init_query_mad(struct ib_smp *mad)
60 {
61 mad->base_version = 1;
62 mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
63 mad->class_version = 1;
64 mad->method = IB_MGMT_METHOD_GET;
65 }
66
67 static int mlx4_ib_query_device(struct ib_device *ibdev,
68 struct ib_device_attr *props)
69 {
70 struct mlx4_ib_dev *dev = to_mdev(ibdev);
71 struct ib_smp *in_mad = NULL;
72 struct ib_smp *out_mad = NULL;
73 int err = -ENOMEM;
74
75 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
76 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
77 if (!in_mad || !out_mad)
78 goto out;
79
80 init_query_mad(in_mad);
81 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
82
83 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad, out_mad);
84 if (err)
85 goto out;
86
87 memset(props, 0, sizeof *props);
88
89 props->fw_ver = dev->dev->caps.fw_ver;
90 props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
91 IB_DEVICE_PORT_ACTIVE_EVENT |
92 IB_DEVICE_SYS_IMAGE_GUID |
93 IB_DEVICE_RC_RNR_NAK_GEN;
94 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR)
95 props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
96 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR)
97 props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
98 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM)
99 props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
100 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT)
101 props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
102
103 props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) &
104 0xffffff;
105 props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30));
106 props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32));
107 memcpy(&props->sys_image_guid, out_mad->data + 4, 8);
108
109 props->max_mr_size = ~0ull;
110 props->page_size_cap = dev->dev->caps.page_size_cap;
111 props->max_qp = dev->dev->caps.num_qps - dev->dev->caps.reserved_qps;
112 props->max_qp_wr = dev->dev->caps.max_wqes;
113 props->max_sge = min(dev->dev->caps.max_sq_sg,
114 dev->dev->caps.max_rq_sg);
115 props->max_cq = dev->dev->caps.num_cqs - dev->dev->caps.reserved_cqs;
116 props->max_cqe = dev->dev->caps.max_cqes;
117 props->max_mr = dev->dev->caps.num_mpts - dev->dev->caps.reserved_mrws;
118 props->max_pd = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds;
119 props->max_qp_rd_atom = dev->dev->caps.max_qp_dest_rdma;
120 props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma;
121 props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp;
122 props->max_srq = dev->dev->caps.num_srqs - dev->dev->caps.reserved_srqs;
123 props->max_srq_wr = dev->dev->caps.max_srq_wqes;
124 props->max_srq_sge = dev->dev->caps.max_srq_sge;
125 props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay;
126 props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ?
127 IB_ATOMIC_HCA : IB_ATOMIC_NONE;
128 props->max_pkeys = dev->dev->caps.pkey_table_len;
129 props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms;
130 props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm;
131 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
132 props->max_mcast_grp;
133 props->max_map_per_fmr = (1 << (32 - ilog2(dev->dev->caps.num_mpts))) - 1;
134
135 out:
136 kfree(in_mad);
137 kfree(out_mad);
138
139 return err;
140 }
141
142 static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
143 struct ib_port_attr *props)
144 {
145 struct ib_smp *in_mad = NULL;
146 struct ib_smp *out_mad = NULL;
147 int err = -ENOMEM;
148
149 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
150 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
151 if (!in_mad || !out_mad)
152 goto out;
153
154 memset(props, 0, sizeof *props);
155
156 init_query_mad(in_mad);
157 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
158 in_mad->attr_mod = cpu_to_be32(port);
159
160 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
161 if (err)
162 goto out;
163
164 props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16));
165 props->lmc = out_mad->data[34] & 0x7;
166 props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18));
167 props->sm_sl = out_mad->data[36] & 0xf;
168 props->state = out_mad->data[32] & 0xf;
169 props->phys_state = out_mad->data[33] >> 4;
170 props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20));
171 props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len;
172 props->max_msg_sz = 0x80000000;
173 props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len;
174 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46));
175 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48));
176 props->active_width = out_mad->data[31] & 0xf;
177 props->active_speed = out_mad->data[35] >> 4;
178 props->max_mtu = out_mad->data[41] & 0xf;
179 props->active_mtu = out_mad->data[36] >> 4;
180 props->subnet_timeout = out_mad->data[51] & 0x1f;
181 props->max_vl_num = out_mad->data[37] >> 4;
182 props->init_type_reply = out_mad->data[41] >> 4;
183
184 out:
185 kfree(in_mad);
186 kfree(out_mad);
187
188 return err;
189 }
190
191 static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
192 union ib_gid *gid)
193 {
194 struct ib_smp *in_mad = NULL;
195 struct ib_smp *out_mad = NULL;
196 int err = -ENOMEM;
197
198 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
199 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
200 if (!in_mad || !out_mad)
201 goto out;
202
203 init_query_mad(in_mad);
204 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
205 in_mad->attr_mod = cpu_to_be32(port);
206
207 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
208 if (err)
209 goto out;
210
211 memcpy(gid->raw, out_mad->data + 8, 8);
212
213 init_query_mad(in_mad);
214 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO;
215 in_mad->attr_mod = cpu_to_be32(index / 8);
216
217 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
218 if (err)
219 goto out;
220
221 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
222
223 out:
224 kfree(in_mad);
225 kfree(out_mad);
226 return err;
227 }
228
229 static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
230 u16 *pkey)
231 {
232 struct ib_smp *in_mad = NULL;
233 struct ib_smp *out_mad = NULL;
234 int err = -ENOMEM;
235
236 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
237 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
238 if (!in_mad || !out_mad)
239 goto out;
240
241 init_query_mad(in_mad);
242 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE;
243 in_mad->attr_mod = cpu_to_be32(index / 32);
244
245 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
246 if (err)
247 goto out;
248
249 *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]);
250
251 out:
252 kfree(in_mad);
253 kfree(out_mad);
254 return err;
255 }
256
257 static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask,
258 struct ib_device_modify *props)
259 {
260 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
261 return -EOPNOTSUPP;
262
263 if (mask & IB_DEVICE_MODIFY_NODE_DESC) {
264 spin_lock(&to_mdev(ibdev)->sm_lock);
265 memcpy(ibdev->node_desc, props->node_desc, 64);
266 spin_unlock(&to_mdev(ibdev)->sm_lock);
267 }
268
269 return 0;
270 }
271
272 static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols,
273 u32 cap_mask)
274 {
275 struct mlx4_cmd_mailbox *mailbox;
276 int err;
277
278 mailbox = mlx4_alloc_cmd_mailbox(dev->dev);
279 if (IS_ERR(mailbox))
280 return PTR_ERR(mailbox);
281
282 memset(mailbox->buf, 0, 256);
283 *(u8 *) mailbox->buf = !!reset_qkey_viols << 6;
284 ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask);
285
286 err = mlx4_cmd(dev->dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT,
287 MLX4_CMD_TIME_CLASS_B);
288
289 mlx4_free_cmd_mailbox(dev->dev, mailbox);
290 return err;
291 }
292
293 static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask,
294 struct ib_port_modify *props)
295 {
296 struct ib_port_attr attr;
297 u32 cap_mask;
298 int err;
299
300 mutex_lock(&to_mdev(ibdev)->cap_mask_mutex);
301
302 err = mlx4_ib_query_port(ibdev, port, &attr);
303 if (err)
304 goto out;
305
306 cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
307 ~props->clr_port_cap_mask;
308
309 err = mlx4_SET_PORT(to_mdev(ibdev), port,
310 !!(mask & IB_PORT_RESET_QKEY_CNTR),
311 cap_mask);
312
313 out:
314 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
315 return err;
316 }
317
318 static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev,
319 struct ib_udata *udata)
320 {
321 struct mlx4_ib_dev *dev = to_mdev(ibdev);
322 struct mlx4_ib_ucontext *context;
323 struct mlx4_ib_alloc_ucontext_resp resp;
324 int err;
325
326 resp.qp_tab_size = dev->dev->caps.num_qps;
327 resp.bf_reg_size = dev->dev->caps.bf_reg_size;
328 resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
329
330 context = kmalloc(sizeof *context, GFP_KERNEL);
331 if (!context)
332 return ERR_PTR(-ENOMEM);
333
334 err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar);
335 if (err) {
336 kfree(context);
337 return ERR_PTR(err);
338 }
339
340 INIT_LIST_HEAD(&context->db_page_list);
341 mutex_init(&context->db_page_mutex);
342
343 err = ib_copy_to_udata(udata, &resp, sizeof resp);
344 if (err) {
345 mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar);
346 kfree(context);
347 return ERR_PTR(-EFAULT);
348 }
349
350 return &context->ibucontext;
351 }
352
353 static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
354 {
355 struct mlx4_ib_ucontext *context = to_mucontext(ibcontext);
356
357 mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar);
358 kfree(context);
359
360 return 0;
361 }
362
363 static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
364 {
365 struct mlx4_ib_dev *dev = to_mdev(context->device);
366
367 if (vma->vm_end - vma->vm_start != PAGE_SIZE)
368 return -EINVAL;
369
370 if (vma->vm_pgoff == 0) {
371 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
372
373 if (io_remap_pfn_range(vma, vma->vm_start,
374 to_mucontext(context)->uar.pfn,
375 PAGE_SIZE, vma->vm_page_prot))
376 return -EAGAIN;
377 } else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) {
378 /* FIXME want pgprot_writecombine() for BlueFlame pages */
379 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
380
381 if (io_remap_pfn_range(vma, vma->vm_start,
382 to_mucontext(context)->uar.pfn +
383 dev->dev->caps.num_uars,
384 PAGE_SIZE, vma->vm_page_prot))
385 return -EAGAIN;
386 } else
387 return -EINVAL;
388
389 return 0;
390 }
391
392 static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev,
393 struct ib_ucontext *context,
394 struct ib_udata *udata)
395 {
396 struct mlx4_ib_pd *pd;
397 int err;
398
399 pd = kmalloc(sizeof *pd, GFP_KERNEL);
400 if (!pd)
401 return ERR_PTR(-ENOMEM);
402
403 err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn);
404 if (err) {
405 kfree(pd);
406 return ERR_PTR(err);
407 }
408
409 if (context)
410 if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) {
411 mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn);
412 kfree(pd);
413 return ERR_PTR(-EFAULT);
414 }
415
416 return &pd->ibpd;
417 }
418
419 static int mlx4_ib_dealloc_pd(struct ib_pd *pd)
420 {
421 mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn);
422 kfree(pd);
423
424 return 0;
425 }
426
427 static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
428 {
429 return mlx4_multicast_attach(to_mdev(ibqp->device)->dev,
430 &to_mqp(ibqp)->mqp, gid->raw);
431 }
432
433 static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
434 {
435 return mlx4_multicast_detach(to_mdev(ibqp->device)->dev,
436 &to_mqp(ibqp)->mqp, gid->raw);
437 }
438
439 static int init_node_data(struct mlx4_ib_dev *dev)
440 {
441 struct ib_smp *in_mad = NULL;
442 struct ib_smp *out_mad = NULL;
443 int err = -ENOMEM;
444
445 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
446 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
447 if (!in_mad || !out_mad)
448 goto out;
449
450 init_query_mad(in_mad);
451 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
452
453 err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
454 if (err)
455 goto out;
456
457 memcpy(dev->ib_dev.node_desc, out_mad->data, 64);
458
459 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
460
461 err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
462 if (err)
463 goto out;
464
465 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
466
467 out:
468 kfree(in_mad);
469 kfree(out_mad);
470 return err;
471 }
472
473 static void *mlx4_ib_add(struct mlx4_dev *dev)
474 {
475 struct mlx4_ib_dev *ibdev;
476
477 ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev);
478 if (!ibdev) {
479 dev_err(&dev->pdev->dev, "Device struct alloc failed\n");
480 return NULL;
481 }
482
483 if (mlx4_pd_alloc(dev, &ibdev->priv_pdn))
484 goto err_dealloc;
485
486 if (mlx4_uar_alloc(dev, &ibdev->priv_uar))
487 goto err_pd;
488
489 ibdev->uar_map = ioremap(ibdev->priv_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
490 if (!ibdev->uar_map)
491 goto err_uar;
492
493 INIT_LIST_HEAD(&ibdev->pgdir_list);
494 mutex_init(&ibdev->pgdir_mutex);
495
496 ibdev->dev = dev;
497
498 strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX);
499 ibdev->ib_dev.owner = THIS_MODULE;
500 ibdev->ib_dev.node_type = RDMA_NODE_IB_CA;
501 ibdev->ib_dev.phys_port_cnt = dev->caps.num_ports;
502 ibdev->ib_dev.num_comp_vectors = 1;
503 ibdev->ib_dev.dma_device = &dev->pdev->dev;
504
505 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION;
506 ibdev->ib_dev.uverbs_cmd_mask =
507 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
508 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
509 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
510 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
511 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
512 (1ull << IB_USER_VERBS_CMD_REG_MR) |
513 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
514 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
515 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
516 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
517 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
518 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
519 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
520 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) |
521 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) |
522 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
523 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
524 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ);
525
526 ibdev->ib_dev.query_device = mlx4_ib_query_device;
527 ibdev->ib_dev.query_port = mlx4_ib_query_port;
528 ibdev->ib_dev.query_gid = mlx4_ib_query_gid;
529 ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey;
530 ibdev->ib_dev.modify_device = mlx4_ib_modify_device;
531 ibdev->ib_dev.modify_port = mlx4_ib_modify_port;
532 ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext;
533 ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext;
534 ibdev->ib_dev.mmap = mlx4_ib_mmap;
535 ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd;
536 ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd;
537 ibdev->ib_dev.create_ah = mlx4_ib_create_ah;
538 ibdev->ib_dev.query_ah = mlx4_ib_query_ah;
539 ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah;
540 ibdev->ib_dev.create_srq = mlx4_ib_create_srq;
541 ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq;
542 ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq;
543 ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv;
544 ibdev->ib_dev.create_qp = mlx4_ib_create_qp;
545 ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp;
546 ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp;
547 ibdev->ib_dev.post_send = mlx4_ib_post_send;
548 ibdev->ib_dev.post_recv = mlx4_ib_post_recv;
549 ibdev->ib_dev.create_cq = mlx4_ib_create_cq;
550 ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq;
551 ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq;
552 ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq;
553 ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr;
554 ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr;
555 ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr;
556 ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach;
557 ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach;
558 ibdev->ib_dev.process_mad = mlx4_ib_process_mad;
559
560 if (init_node_data(ibdev))
561 goto err_map;
562
563 spin_lock_init(&ibdev->sm_lock);
564 mutex_init(&ibdev->cap_mask_mutex);
565
566 if (ib_register_device(&ibdev->ib_dev))
567 goto err_map;
568
569 if (mlx4_ib_mad_init(ibdev))
570 goto err_reg;
571
572 return ibdev;
573
574 err_reg:
575 ib_unregister_device(&ibdev->ib_dev);
576
577 err_map:
578 iounmap(ibdev->uar_map);
579
580 err_uar:
581 mlx4_uar_free(dev, &ibdev->priv_uar);
582
583 err_pd:
584 mlx4_pd_free(dev, ibdev->priv_pdn);
585
586 err_dealloc:
587 ib_dealloc_device(&ibdev->ib_dev);
588
589 return NULL;
590 }
591
592 static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
593 {
594 struct mlx4_ib_dev *ibdev = ibdev_ptr;
595 int p;
596
597 for (p = 1; p <= dev->caps.num_ports; ++p)
598 mlx4_CLOSE_PORT(dev, p);
599
600 mlx4_ib_mad_cleanup(ibdev);
601 ib_unregister_device(&ibdev->ib_dev);
602 iounmap(ibdev->uar_map);
603 mlx4_uar_free(dev, &ibdev->priv_uar);
604 mlx4_pd_free(dev, ibdev->priv_pdn);
605 ib_dealloc_device(&ibdev->ib_dev);
606 }
607
608 static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
609 enum mlx4_dev_event event, int subtype,
610 int port)
611 {
612 struct ib_event ibev;
613
614 switch (event) {
615 case MLX4_EVENT_TYPE_PORT_CHANGE:
616 ibev.event = subtype == MLX4_PORT_CHANGE_SUBTYPE_ACTIVE ?
617 IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR;
618 break;
619
620 case MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR:
621 ibev.event = IB_EVENT_DEVICE_FATAL;
622 break;
623
624 default:
625 return;
626 }
627
628 ibev.device = ibdev_ptr;
629 ibev.element.port_num = port;
630
631 ib_dispatch_event(&ibev);
632 }
633
634 static struct mlx4_interface mlx4_ib_interface = {
635 .add = mlx4_ib_add,
636 .remove = mlx4_ib_remove,
637 .event = mlx4_ib_event
638 };
639
640 static int __init mlx4_ib_init(void)
641 {
642 return mlx4_register_interface(&mlx4_ib_interface);
643 }
644
645 static void __exit mlx4_ib_cleanup(void)
646 {
647 mlx4_unregister_interface(&mlx4_ib_interface);
648 }
649
650 module_init(mlx4_ib_init);
651 module_exit(mlx4_ib_cleanup);
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