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225c7b1f RD |
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); |