Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. | |
cd4e8fb4 | 3 | * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. |
5e0b537c | 4 | * Copyright (c) 2005 Cisco Systems. All rights reserved. |
2a1d9b7f RD |
5 | * Copyright (c) 2005 Mellanox Technologies. All rights reserved. |
6 | * Copyright (c) 2004 Voltaire, Inc. All rights reserved. | |
1da177e4 LT |
7 | * |
8 | * This software is available to you under a choice of one of two | |
9 | * licenses. You may choose to be licensed under the terms of the GNU | |
10 | * General Public License (GPL) Version 2, available from the file | |
11 | * COPYING in the main directory of this source tree, or the | |
12 | * OpenIB.org BSD license below: | |
13 | * | |
14 | * Redistribution and use in source and binary forms, with or | |
15 | * without modification, are permitted provided that the following | |
16 | * conditions are met: | |
17 | * | |
18 | * - Redistributions of source code must retain the above | |
19 | * copyright notice, this list of conditions and the following | |
20 | * disclaimer. | |
21 | * | |
22 | * - Redistributions in binary form must reproduce the above | |
23 | * copyright notice, this list of conditions and the following | |
24 | * disclaimer in the documentation and/or other materials | |
25 | * provided with the distribution. | |
26 | * | |
27 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
28 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
29 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
30 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
31 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
32 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
33 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
34 | * SOFTWARE. | |
35 | * | |
36 | * $Id: mthca_provider.c 1397 2004-12-28 05:09:00Z roland $ | |
37 | */ | |
38 | ||
a4d61e84 | 39 | #include <rdma/ib_smi.h> |
883a99c7 | 40 | #include <rdma/ib_user_verbs.h> |
53b8b3ff | 41 | #include <linux/mm.h> |
1da177e4 LT |
42 | |
43 | #include "mthca_dev.h" | |
44 | #include "mthca_cmd.h" | |
5e0b537c RD |
45 | #include "mthca_user.h" |
46 | #include "mthca_memfree.h" | |
1da177e4 LT |
47 | |
48 | static int mthca_query_device(struct ib_device *ibdev, | |
49 | struct ib_device_attr *props) | |
50 | { | |
51 | struct ib_smp *in_mad = NULL; | |
52 | struct ib_smp *out_mad = NULL; | |
53 | int err = -ENOMEM; | |
54 | struct mthca_dev* mdev = to_mdev(ibdev); | |
55 | ||
56 | u8 status; | |
57 | ||
58 | in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL); | |
59 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
60 | if (!in_mad || !out_mad) | |
61 | goto out; | |
62 | ||
a852092e | 63 | memset(props, 0, sizeof *props); |
8cf2daf3 | 64 | |
1da177e4 LT |
65 | props->fw_ver = mdev->fw_ver; |
66 | ||
67 | memset(in_mad, 0, sizeof *in_mad); | |
68 | in_mad->base_version = 1; | |
69 | in_mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; | |
70 | in_mad->class_version = 1; | |
71 | in_mad->method = IB_MGMT_METHOD_GET; | |
72 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; | |
73 | ||
74 | err = mthca_MAD_IFC(mdev, 1, 1, | |
75 | 1, NULL, NULL, in_mad, out_mad, | |
76 | &status); | |
77 | if (err) | |
78 | goto out; | |
79 | if (status) { | |
80 | err = -EINVAL; | |
81 | goto out; | |
82 | } | |
83 | ||
8cf2daf3 | 84 | props->device_cap_flags = mdev->device_cap_flags; |
97f52eb4 | 85 | props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & |
1da177e4 | 86 | 0xffffff; |
97f52eb4 | 87 | props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30)); |
a1c337af | 88 | props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); |
1da177e4 LT |
89 | memcpy(&props->sys_image_guid, out_mad->data + 4, 8); |
90 | memcpy(&props->node_guid, out_mad->data + 12, 8); | |
91 | ||
8cf2daf3 RD |
92 | props->max_mr_size = ~0ull; |
93 | props->max_qp = mdev->limits.num_qps - mdev->limits.reserved_qps; | |
efaae8f7 | 94 | props->max_qp_wr = mdev->limits.max_wqes; |
8cf2daf3 RD |
95 | props->max_sge = mdev->limits.max_sg; |
96 | props->max_cq = mdev->limits.num_cqs - mdev->limits.reserved_cqs; | |
efaae8f7 | 97 | props->max_cqe = mdev->limits.max_cqes; |
8cf2daf3 RD |
98 | props->max_mr = mdev->limits.num_mpts - mdev->limits.reserved_mrws; |
99 | props->max_pd = mdev->limits.num_pds - mdev->limits.reserved_pds; | |
100 | props->max_qp_rd_atom = 1 << mdev->qp_table.rdb_shift; | |
efaae8f7 JM |
101 | props->max_qp_init_rd_atom = mdev->limits.max_qp_init_rdma; |
102 | props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; | |
103 | props->max_srq = mdev->limits.num_srqs - mdev->limits.reserved_srqs; | |
104 | props->max_srq_wr = mdev->limits.max_srq_wqes; | |
105 | props->max_srq_sge = mdev->limits.max_sg; | |
8cf2daf3 | 106 | props->local_ca_ack_delay = mdev->limits.local_ca_ack_delay; |
33033b79 JM |
107 | props->atomic_cap = mdev->limits.flags & DEV_LIM_FLAG_ATOMIC ? |
108 | IB_ATOMIC_HCA : IB_ATOMIC_NONE; | |
efaae8f7 JM |
109 | props->max_pkeys = mdev->limits.pkey_table_len; |
110 | props->max_mcast_grp = mdev->limits.num_mgms + mdev->limits.num_amgms; | |
111 | props->max_mcast_qp_attach = MTHCA_QP_PER_MGM; | |
112 | props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * | |
113 | props->max_mcast_grp; | |
8cf2daf3 | 114 | |
1da177e4 LT |
115 | err = 0; |
116 | out: | |
117 | kfree(in_mad); | |
118 | kfree(out_mad); | |
119 | return err; | |
120 | } | |
121 | ||
122 | static int mthca_query_port(struct ib_device *ibdev, | |
123 | u8 port, struct ib_port_attr *props) | |
124 | { | |
125 | struct ib_smp *in_mad = NULL; | |
126 | struct ib_smp *out_mad = NULL; | |
127 | int err = -ENOMEM; | |
128 | u8 status; | |
129 | ||
130 | in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL); | |
131 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
132 | if (!in_mad || !out_mad) | |
133 | goto out; | |
134 | ||
d1887ec2 RD |
135 | memset(props, 0, sizeof *props); |
136 | ||
1da177e4 LT |
137 | memset(in_mad, 0, sizeof *in_mad); |
138 | in_mad->base_version = 1; | |
139 | in_mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; | |
140 | in_mad->class_version = 1; | |
141 | in_mad->method = IB_MGMT_METHOD_GET; | |
142 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; | |
143 | in_mad->attr_mod = cpu_to_be32(port); | |
144 | ||
145 | err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, | |
146 | port, NULL, NULL, in_mad, out_mad, | |
147 | &status); | |
148 | if (err) | |
149 | goto out; | |
150 | if (status) { | |
151 | err = -EINVAL; | |
152 | goto out; | |
153 | } | |
154 | ||
97f52eb4 | 155 | props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); |
1da177e4 | 156 | props->lmc = out_mad->data[34] & 0x7; |
97f52eb4 | 157 | props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); |
1da177e4 LT |
158 | props->sm_sl = out_mad->data[36] & 0xf; |
159 | props->state = out_mad->data[32] & 0xf; | |
160 | props->phys_state = out_mad->data[33] >> 4; | |
97f52eb4 | 161 | props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); |
1da177e4 | 162 | props->gid_tbl_len = to_mdev(ibdev)->limits.gid_table_len; |
d1887ec2 | 163 | props->max_msg_sz = 0x80000000; |
1da177e4 | 164 | props->pkey_tbl_len = to_mdev(ibdev)->limits.pkey_table_len; |
9825051e | 165 | props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); |
97f52eb4 | 166 | props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); |
1da177e4 LT |
167 | props->active_width = out_mad->data[31] & 0xf; |
168 | props->active_speed = out_mad->data[35] >> 4; | |
9825051e JM |
169 | props->max_mtu = out_mad->data[41] & 0xf; |
170 | props->active_mtu = out_mad->data[36] >> 4; | |
171 | props->subnet_timeout = out_mad->data[51] & 0x1f; | |
1da177e4 LT |
172 | |
173 | out: | |
174 | kfree(in_mad); | |
175 | kfree(out_mad); | |
176 | return err; | |
177 | } | |
178 | ||
179 | static int mthca_modify_port(struct ib_device *ibdev, | |
180 | u8 port, int port_modify_mask, | |
181 | struct ib_port_modify *props) | |
182 | { | |
183 | struct mthca_set_ib_param set_ib; | |
184 | struct ib_port_attr attr; | |
185 | int err; | |
186 | u8 status; | |
187 | ||
188 | if (down_interruptible(&to_mdev(ibdev)->cap_mask_mutex)) | |
189 | return -ERESTARTSYS; | |
190 | ||
191 | err = mthca_query_port(ibdev, port, &attr); | |
192 | if (err) | |
193 | goto out; | |
194 | ||
195 | set_ib.set_si_guid = 0; | |
196 | set_ib.reset_qkey_viol = !!(port_modify_mask & IB_PORT_RESET_QKEY_CNTR); | |
197 | ||
198 | set_ib.cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & | |
199 | ~props->clr_port_cap_mask; | |
200 | ||
201 | err = mthca_SET_IB(to_mdev(ibdev), &set_ib, port, &status); | |
202 | if (err) | |
203 | goto out; | |
204 | if (status) { | |
205 | err = -EINVAL; | |
206 | goto out; | |
207 | } | |
208 | ||
209 | out: | |
210 | up(&to_mdev(ibdev)->cap_mask_mutex); | |
211 | return err; | |
212 | } | |
213 | ||
214 | static int mthca_query_pkey(struct ib_device *ibdev, | |
215 | u8 port, u16 index, u16 *pkey) | |
216 | { | |
217 | struct ib_smp *in_mad = NULL; | |
218 | struct ib_smp *out_mad = NULL; | |
219 | int err = -ENOMEM; | |
220 | u8 status; | |
221 | ||
222 | in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL); | |
223 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
224 | if (!in_mad || !out_mad) | |
225 | goto out; | |
226 | ||
227 | memset(in_mad, 0, sizeof *in_mad); | |
228 | in_mad->base_version = 1; | |
229 | in_mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; | |
230 | in_mad->class_version = 1; | |
231 | in_mad->method = IB_MGMT_METHOD_GET; | |
232 | in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; | |
233 | in_mad->attr_mod = cpu_to_be32(index / 32); | |
234 | ||
235 | err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, | |
236 | port, NULL, NULL, in_mad, out_mad, | |
237 | &status); | |
238 | if (err) | |
239 | goto out; | |
240 | if (status) { | |
241 | err = -EINVAL; | |
242 | goto out; | |
243 | } | |
244 | ||
97f52eb4 | 245 | *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); |
1da177e4 LT |
246 | |
247 | out: | |
248 | kfree(in_mad); | |
249 | kfree(out_mad); | |
250 | return err; | |
251 | } | |
252 | ||
253 | static int mthca_query_gid(struct ib_device *ibdev, u8 port, | |
254 | int index, union ib_gid *gid) | |
255 | { | |
256 | struct ib_smp *in_mad = NULL; | |
257 | struct ib_smp *out_mad = NULL; | |
258 | int err = -ENOMEM; | |
259 | u8 status; | |
260 | ||
261 | in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL); | |
262 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
263 | if (!in_mad || !out_mad) | |
264 | goto out; | |
265 | ||
266 | memset(in_mad, 0, sizeof *in_mad); | |
267 | in_mad->base_version = 1; | |
268 | in_mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; | |
269 | in_mad->class_version = 1; | |
270 | in_mad->method = IB_MGMT_METHOD_GET; | |
271 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; | |
272 | in_mad->attr_mod = cpu_to_be32(port); | |
273 | ||
274 | err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, | |
275 | port, NULL, NULL, in_mad, out_mad, | |
276 | &status); | |
277 | if (err) | |
278 | goto out; | |
279 | if (status) { | |
280 | err = -EINVAL; | |
281 | goto out; | |
282 | } | |
283 | ||
284 | memcpy(gid->raw, out_mad->data + 8, 8); | |
285 | ||
286 | memset(in_mad, 0, sizeof *in_mad); | |
287 | in_mad->base_version = 1; | |
288 | in_mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; | |
289 | in_mad->class_version = 1; | |
290 | in_mad->method = IB_MGMT_METHOD_GET; | |
291 | in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; | |
292 | in_mad->attr_mod = cpu_to_be32(index / 8); | |
293 | ||
294 | err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, | |
295 | port, NULL, NULL, in_mad, out_mad, | |
296 | &status); | |
297 | if (err) | |
298 | goto out; | |
299 | if (status) { | |
300 | err = -EINVAL; | |
301 | goto out; | |
302 | } | |
303 | ||
304 | memcpy(gid->raw + 8, out_mad->data + (index % 8) * 16, 8); | |
305 | ||
306 | out: | |
307 | kfree(in_mad); | |
308 | kfree(out_mad); | |
309 | return err; | |
310 | } | |
311 | ||
5e0b537c RD |
312 | static struct ib_ucontext *mthca_alloc_ucontext(struct ib_device *ibdev, |
313 | struct ib_udata *udata) | |
314 | { | |
315 | struct mthca_alloc_ucontext_resp uresp; | |
316 | struct mthca_ucontext *context; | |
317 | int err; | |
318 | ||
319 | memset(&uresp, 0, sizeof uresp); | |
320 | ||
321 | uresp.qp_tab_size = to_mdev(ibdev)->limits.num_qps; | |
322 | if (mthca_is_memfree(to_mdev(ibdev))) | |
323 | uresp.uarc_size = to_mdev(ibdev)->uar_table.uarc_size; | |
324 | else | |
325 | uresp.uarc_size = 0; | |
326 | ||
327 | context = kmalloc(sizeof *context, GFP_KERNEL); | |
328 | if (!context) | |
329 | return ERR_PTR(-ENOMEM); | |
330 | ||
331 | err = mthca_uar_alloc(to_mdev(ibdev), &context->uar); | |
332 | if (err) { | |
333 | kfree(context); | |
334 | return ERR_PTR(err); | |
335 | } | |
336 | ||
337 | context->db_tab = mthca_init_user_db_tab(to_mdev(ibdev)); | |
338 | if (IS_ERR(context->db_tab)) { | |
339 | err = PTR_ERR(context->db_tab); | |
340 | mthca_uar_free(to_mdev(ibdev), &context->uar); | |
341 | kfree(context); | |
342 | return ERR_PTR(err); | |
343 | } | |
344 | ||
345 | if (ib_copy_to_udata(udata, &uresp, sizeof uresp)) { | |
346 | mthca_cleanup_user_db_tab(to_mdev(ibdev), &context->uar, context->db_tab); | |
347 | mthca_uar_free(to_mdev(ibdev), &context->uar); | |
348 | kfree(context); | |
349 | return ERR_PTR(-EFAULT); | |
350 | } | |
351 | ||
352 | return &context->ibucontext; | |
353 | } | |
354 | ||
355 | static int mthca_dealloc_ucontext(struct ib_ucontext *context) | |
356 | { | |
357 | mthca_cleanup_user_db_tab(to_mdev(context->device), &to_mucontext(context)->uar, | |
358 | to_mucontext(context)->db_tab); | |
359 | mthca_uar_free(to_mdev(context->device), &to_mucontext(context)->uar); | |
360 | kfree(to_mucontext(context)); | |
361 | ||
362 | return 0; | |
363 | } | |
364 | ||
53b8b3ff RD |
365 | static int mthca_mmap_uar(struct ib_ucontext *context, |
366 | struct vm_area_struct *vma) | |
367 | { | |
368 | if (vma->vm_end - vma->vm_start != PAGE_SIZE) | |
369 | return -EINVAL; | |
370 | ||
371 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | |
372 | ||
6d376756 MT |
373 | if (io_remap_pfn_range(vma, vma->vm_start, |
374 | to_mucontext(context)->uar.pfn, | |
375 | PAGE_SIZE, vma->vm_page_prot)) | |
53b8b3ff RD |
376 | return -EAGAIN; |
377 | ||
378 | return 0; | |
379 | } | |
380 | ||
1cf296b6 RD |
381 | static struct ib_pd *mthca_alloc_pd(struct ib_device *ibdev, |
382 | struct ib_ucontext *context, | |
383 | struct ib_udata *udata) | |
1da177e4 LT |
384 | { |
385 | struct mthca_pd *pd; | |
386 | int err; | |
387 | ||
388 | pd = kmalloc(sizeof *pd, GFP_KERNEL); | |
389 | if (!pd) | |
390 | return ERR_PTR(-ENOMEM); | |
391 | ||
99264c1e | 392 | err = mthca_pd_alloc(to_mdev(ibdev), !context, pd); |
1da177e4 LT |
393 | if (err) { |
394 | kfree(pd); | |
395 | return ERR_PTR(err); | |
396 | } | |
397 | ||
99264c1e RD |
398 | if (context) { |
399 | if (ib_copy_to_udata(udata, &pd->pd_num, sizeof (__u32))) { | |
400 | mthca_pd_free(to_mdev(ibdev), pd); | |
401 | kfree(pd); | |
402 | return ERR_PTR(-EFAULT); | |
403 | } | |
404 | } | |
405 | ||
1da177e4 LT |
406 | return &pd->ibpd; |
407 | } | |
408 | ||
409 | static int mthca_dealloc_pd(struct ib_pd *pd) | |
410 | { | |
411 | mthca_pd_free(to_mdev(pd->device), to_mpd(pd)); | |
412 | kfree(pd); | |
413 | ||
414 | return 0; | |
415 | } | |
416 | ||
417 | static struct ib_ah *mthca_ah_create(struct ib_pd *pd, | |
418 | struct ib_ah_attr *ah_attr) | |
419 | { | |
420 | int err; | |
421 | struct mthca_ah *ah; | |
422 | ||
8df8a34d | 423 | ah = kmalloc(sizeof *ah, GFP_ATOMIC); |
1da177e4 LT |
424 | if (!ah) |
425 | return ERR_PTR(-ENOMEM); | |
426 | ||
427 | err = mthca_create_ah(to_mdev(pd->device), to_mpd(pd), ah_attr, ah); | |
428 | if (err) { | |
429 | kfree(ah); | |
430 | return ERR_PTR(err); | |
431 | } | |
432 | ||
433 | return &ah->ibah; | |
434 | } | |
435 | ||
436 | static int mthca_ah_destroy(struct ib_ah *ah) | |
437 | { | |
438 | mthca_destroy_ah(to_mdev(ah->device), to_mah(ah)); | |
439 | kfree(ah); | |
440 | ||
441 | return 0; | |
442 | } | |
443 | ||
ec34a922 RD |
444 | static struct ib_srq *mthca_create_srq(struct ib_pd *pd, |
445 | struct ib_srq_init_attr *init_attr, | |
446 | struct ib_udata *udata) | |
447 | { | |
448 | struct mthca_create_srq ucmd; | |
449 | struct mthca_ucontext *context = NULL; | |
450 | struct mthca_srq *srq; | |
451 | int err; | |
452 | ||
453 | srq = kmalloc(sizeof *srq, GFP_KERNEL); | |
454 | if (!srq) | |
455 | return ERR_PTR(-ENOMEM); | |
456 | ||
457 | if (pd->uobject) { | |
458 | context = to_mucontext(pd->uobject->context); | |
459 | ||
460 | if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) | |
461 | return ERR_PTR(-EFAULT); | |
462 | ||
463 | err = mthca_map_user_db(to_mdev(pd->device), &context->uar, | |
464 | context->db_tab, ucmd.db_index, | |
465 | ucmd.db_page); | |
466 | ||
467 | if (err) | |
468 | goto err_free; | |
469 | ||
470 | srq->mr.ibmr.lkey = ucmd.lkey; | |
471 | srq->db_index = ucmd.db_index; | |
472 | } | |
473 | ||
474 | err = mthca_alloc_srq(to_mdev(pd->device), to_mpd(pd), | |
475 | &init_attr->attr, srq); | |
476 | ||
477 | if (err && pd->uobject) | |
478 | mthca_unmap_user_db(to_mdev(pd->device), &context->uar, | |
479 | context->db_tab, ucmd.db_index); | |
480 | ||
481 | if (err) | |
482 | goto err_free; | |
483 | ||
484 | if (context && ib_copy_to_udata(udata, &srq->srqn, sizeof (__u32))) { | |
485 | mthca_free_srq(to_mdev(pd->device), srq); | |
486 | err = -EFAULT; | |
487 | goto err_free; | |
488 | } | |
489 | ||
490 | return &srq->ibsrq; | |
491 | ||
492 | err_free: | |
493 | kfree(srq); | |
494 | ||
495 | return ERR_PTR(err); | |
496 | } | |
497 | ||
498 | static int mthca_destroy_srq(struct ib_srq *srq) | |
499 | { | |
500 | struct mthca_ucontext *context; | |
501 | ||
502 | if (srq->uobject) { | |
503 | context = to_mucontext(srq->uobject->context); | |
504 | ||
505 | mthca_unmap_user_db(to_mdev(srq->device), &context->uar, | |
506 | context->db_tab, to_msrq(srq)->db_index); | |
507 | } | |
508 | ||
509 | mthca_free_srq(to_mdev(srq->device), to_msrq(srq)); | |
510 | kfree(srq); | |
511 | ||
512 | return 0; | |
513 | } | |
514 | ||
1da177e4 | 515 | static struct ib_qp *mthca_create_qp(struct ib_pd *pd, |
1cf296b6 RD |
516 | struct ib_qp_init_attr *init_attr, |
517 | struct ib_udata *udata) | |
1da177e4 | 518 | { |
80c8ec2c | 519 | struct mthca_create_qp ucmd; |
1da177e4 LT |
520 | struct mthca_qp *qp; |
521 | int err; | |
522 | ||
523 | switch (init_attr->qp_type) { | |
524 | case IB_QPT_RC: | |
525 | case IB_QPT_UC: | |
526 | case IB_QPT_UD: | |
527 | { | |
80c8ec2c RD |
528 | struct mthca_ucontext *context; |
529 | ||
1da177e4 LT |
530 | qp = kmalloc(sizeof *qp, GFP_KERNEL); |
531 | if (!qp) | |
532 | return ERR_PTR(-ENOMEM); | |
533 | ||
80c8ec2c RD |
534 | if (pd->uobject) { |
535 | context = to_mucontext(pd->uobject->context); | |
536 | ||
537 | if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) | |
538 | return ERR_PTR(-EFAULT); | |
539 | ||
540 | err = mthca_map_user_db(to_mdev(pd->device), &context->uar, | |
541 | context->db_tab, | |
542 | ucmd.sq_db_index, ucmd.sq_db_page); | |
543 | if (err) { | |
544 | kfree(qp); | |
545 | return ERR_PTR(err); | |
546 | } | |
547 | ||
548 | err = mthca_map_user_db(to_mdev(pd->device), &context->uar, | |
549 | context->db_tab, | |
550 | ucmd.rq_db_index, ucmd.rq_db_page); | |
551 | if (err) { | |
552 | mthca_unmap_user_db(to_mdev(pd->device), | |
553 | &context->uar, | |
554 | context->db_tab, | |
555 | ucmd.sq_db_index); | |
556 | kfree(qp); | |
557 | return ERR_PTR(err); | |
558 | } | |
559 | ||
560 | qp->mr.ibmr.lkey = ucmd.lkey; | |
561 | qp->sq.db_index = ucmd.sq_db_index; | |
562 | qp->rq.db_index = ucmd.rq_db_index; | |
563 | } | |
1da177e4 LT |
564 | |
565 | err = mthca_alloc_qp(to_mdev(pd->device), to_mpd(pd), | |
566 | to_mcq(init_attr->send_cq), | |
567 | to_mcq(init_attr->recv_cq), | |
568 | init_attr->qp_type, init_attr->sq_sig_type, | |
80c8ec2c RD |
569 | &init_attr->cap, qp); |
570 | ||
571 | if (err && pd->uobject) { | |
572 | context = to_mucontext(pd->uobject->context); | |
573 | ||
574 | mthca_unmap_user_db(to_mdev(pd->device), | |
575 | &context->uar, | |
576 | context->db_tab, | |
577 | ucmd.sq_db_index); | |
578 | mthca_unmap_user_db(to_mdev(pd->device), | |
579 | &context->uar, | |
580 | context->db_tab, | |
581 | ucmd.rq_db_index); | |
582 | } | |
583 | ||
1da177e4 LT |
584 | qp->ibqp.qp_num = qp->qpn; |
585 | break; | |
586 | } | |
587 | case IB_QPT_SMI: | |
588 | case IB_QPT_GSI: | |
589 | { | |
80c8ec2c RD |
590 | /* Don't allow userspace to create special QPs */ |
591 | if (pd->uobject) | |
592 | return ERR_PTR(-EINVAL); | |
593 | ||
1da177e4 LT |
594 | qp = kmalloc(sizeof (struct mthca_sqp), GFP_KERNEL); |
595 | if (!qp) | |
596 | return ERR_PTR(-ENOMEM); | |
597 | ||
1da177e4 LT |
598 | qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 : 1; |
599 | ||
600 | err = mthca_alloc_sqp(to_mdev(pd->device), to_mpd(pd), | |
601 | to_mcq(init_attr->send_cq), | |
602 | to_mcq(init_attr->recv_cq), | |
80c8ec2c | 603 | init_attr->sq_sig_type, &init_attr->cap, |
1da177e4 LT |
604 | qp->ibqp.qp_num, init_attr->port_num, |
605 | to_msqp(qp)); | |
606 | break; | |
607 | } | |
608 | default: | |
609 | /* Don't support raw QPs */ | |
610 | return ERR_PTR(-ENOSYS); | |
611 | } | |
612 | ||
613 | if (err) { | |
614 | kfree(qp); | |
615 | return ERR_PTR(err); | |
616 | } | |
617 | ||
80c8ec2c RD |
618 | init_attr->cap.max_inline_data = 0; |
619 | init_attr->cap.max_send_wr = qp->sq.max; | |
620 | init_attr->cap.max_recv_wr = qp->rq.max; | |
621 | init_attr->cap.max_send_sge = qp->sq.max_gs; | |
622 | init_attr->cap.max_recv_sge = qp->rq.max_gs; | |
1da177e4 LT |
623 | |
624 | return &qp->ibqp; | |
625 | } | |
626 | ||
627 | static int mthca_destroy_qp(struct ib_qp *qp) | |
628 | { | |
80c8ec2c RD |
629 | if (qp->uobject) { |
630 | mthca_unmap_user_db(to_mdev(qp->device), | |
631 | &to_mucontext(qp->uobject->context)->uar, | |
632 | to_mucontext(qp->uobject->context)->db_tab, | |
633 | to_mqp(qp)->sq.db_index); | |
634 | mthca_unmap_user_db(to_mdev(qp->device), | |
635 | &to_mucontext(qp->uobject->context)->uar, | |
636 | to_mucontext(qp->uobject->context)->db_tab, | |
637 | to_mqp(qp)->rq.db_index); | |
638 | } | |
1da177e4 LT |
639 | mthca_free_qp(to_mdev(qp->device), to_mqp(qp)); |
640 | kfree(qp); | |
641 | return 0; | |
642 | } | |
643 | ||
1cf296b6 RD |
644 | static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, int entries, |
645 | struct ib_ucontext *context, | |
646 | struct ib_udata *udata) | |
1da177e4 | 647 | { |
74c2174e | 648 | struct mthca_create_cq ucmd; |
1da177e4 LT |
649 | struct mthca_cq *cq; |
650 | int nent; | |
651 | int err; | |
652 | ||
efaae8f7 JM |
653 | if (entries < 1 || entries > to_mdev(ibdev)->limits.max_cqes) |
654 | return ERR_PTR(-EINVAL); | |
655 | ||
74c2174e RD |
656 | if (context) { |
657 | if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) | |
658 | return ERR_PTR(-EFAULT); | |
659 | ||
660 | err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, | |
661 | to_mucontext(context)->db_tab, | |
662 | ucmd.set_db_index, ucmd.set_db_page); | |
663 | if (err) | |
664 | return ERR_PTR(err); | |
665 | ||
666 | err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, | |
667 | to_mucontext(context)->db_tab, | |
668 | ucmd.arm_db_index, ucmd.arm_db_page); | |
669 | if (err) | |
670 | goto err_unmap_set; | |
671 | } | |
672 | ||
1da177e4 | 673 | cq = kmalloc(sizeof *cq, GFP_KERNEL); |
74c2174e RD |
674 | if (!cq) { |
675 | err = -ENOMEM; | |
676 | goto err_unmap_arm; | |
677 | } | |
678 | ||
679 | if (context) { | |
680 | cq->mr.ibmr.lkey = ucmd.lkey; | |
681 | cq->set_ci_db_index = ucmd.set_db_index; | |
682 | cq->arm_db_index = ucmd.arm_db_index; | |
683 | } | |
1da177e4 LT |
684 | |
685 | for (nent = 1; nent <= entries; nent <<= 1) | |
686 | ; /* nothing */ | |
687 | ||
74c2174e RD |
688 | err = mthca_init_cq(to_mdev(ibdev), nent, |
689 | context ? to_mucontext(context) : NULL, | |
690 | context ? ucmd.pdn : to_mdev(ibdev)->driver_pd.pd_num, | |
691 | cq); | |
692 | if (err) | |
693 | goto err_free; | |
694 | ||
695 | if (context && ib_copy_to_udata(udata, &cq->cqn, sizeof (__u32))) { | |
696 | mthca_free_cq(to_mdev(ibdev), cq); | |
697 | goto err_free; | |
1da177e4 LT |
698 | } |
699 | ||
700 | return &cq->ibcq; | |
74c2174e RD |
701 | |
702 | err_free: | |
703 | kfree(cq); | |
704 | ||
705 | err_unmap_arm: | |
706 | if (context) | |
707 | mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, | |
708 | to_mucontext(context)->db_tab, ucmd.arm_db_index); | |
709 | ||
710 | err_unmap_set: | |
711 | if (context) | |
712 | mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, | |
713 | to_mucontext(context)->db_tab, ucmd.set_db_index); | |
714 | ||
715 | return ERR_PTR(err); | |
1da177e4 LT |
716 | } |
717 | ||
718 | static int mthca_destroy_cq(struct ib_cq *cq) | |
719 | { | |
74c2174e RD |
720 | if (cq->uobject) { |
721 | mthca_unmap_user_db(to_mdev(cq->device), | |
722 | &to_mucontext(cq->uobject->context)->uar, | |
723 | to_mucontext(cq->uobject->context)->db_tab, | |
724 | to_mcq(cq)->arm_db_index); | |
725 | mthca_unmap_user_db(to_mdev(cq->device), | |
726 | &to_mucontext(cq->uobject->context)->uar, | |
727 | to_mucontext(cq->uobject->context)->db_tab, | |
728 | to_mcq(cq)->set_ci_db_index); | |
729 | } | |
1da177e4 LT |
730 | mthca_free_cq(to_mdev(cq->device), to_mcq(cq)); |
731 | kfree(cq); | |
732 | ||
733 | return 0; | |
734 | } | |
735 | ||
736 | static inline u32 convert_access(int acc) | |
737 | { | |
738 | return (acc & IB_ACCESS_REMOTE_ATOMIC ? MTHCA_MPT_FLAG_ATOMIC : 0) | | |
739 | (acc & IB_ACCESS_REMOTE_WRITE ? MTHCA_MPT_FLAG_REMOTE_WRITE : 0) | | |
740 | (acc & IB_ACCESS_REMOTE_READ ? MTHCA_MPT_FLAG_REMOTE_READ : 0) | | |
741 | (acc & IB_ACCESS_LOCAL_WRITE ? MTHCA_MPT_FLAG_LOCAL_WRITE : 0) | | |
742 | MTHCA_MPT_FLAG_LOCAL_READ; | |
743 | } | |
744 | ||
745 | static struct ib_mr *mthca_get_dma_mr(struct ib_pd *pd, int acc) | |
746 | { | |
747 | struct mthca_mr *mr; | |
748 | int err; | |
749 | ||
750 | mr = kmalloc(sizeof *mr, GFP_KERNEL); | |
751 | if (!mr) | |
752 | return ERR_PTR(-ENOMEM); | |
753 | ||
754 | err = mthca_mr_alloc_notrans(to_mdev(pd->device), | |
755 | to_mpd(pd)->pd_num, | |
756 | convert_access(acc), mr); | |
757 | ||
758 | if (err) { | |
759 | kfree(mr); | |
760 | return ERR_PTR(err); | |
761 | } | |
762 | ||
763 | return &mr->ibmr; | |
764 | } | |
765 | ||
766 | static struct ib_mr *mthca_reg_phys_mr(struct ib_pd *pd, | |
767 | struct ib_phys_buf *buffer_list, | |
768 | int num_phys_buf, | |
769 | int acc, | |
770 | u64 *iova_start) | |
771 | { | |
772 | struct mthca_mr *mr; | |
773 | u64 *page_list; | |
774 | u64 total_size; | |
775 | u64 mask; | |
776 | int shift; | |
777 | int npages; | |
778 | int err; | |
779 | int i, j, n; | |
780 | ||
781 | /* First check that we have enough alignment */ | |
782 | if ((*iova_start & ~PAGE_MASK) != (buffer_list[0].addr & ~PAGE_MASK)) | |
783 | return ERR_PTR(-EINVAL); | |
784 | ||
785 | if (num_phys_buf > 1 && | |
786 | ((buffer_list[0].addr + buffer_list[0].size) & ~PAGE_MASK)) | |
787 | return ERR_PTR(-EINVAL); | |
788 | ||
789 | mask = 0; | |
790 | total_size = 0; | |
791 | for (i = 0; i < num_phys_buf; ++i) { | |
72c30290 | 792 | if (i != 0 && buffer_list[i].addr & ~PAGE_MASK) |
1da177e4 LT |
793 | return ERR_PTR(-EINVAL); |
794 | if (i != 0 && i != num_phys_buf - 1 && | |
795 | (buffer_list[i].size & ~PAGE_MASK)) | |
796 | return ERR_PTR(-EINVAL); | |
797 | ||
798 | total_size += buffer_list[i].size; | |
799 | if (i > 0) | |
800 | mask |= buffer_list[i].addr; | |
801 | } | |
802 | ||
803 | /* Find largest page shift we can use to cover buffers */ | |
804 | for (shift = PAGE_SHIFT; shift < 31; ++shift) | |
805 | if (num_phys_buf > 1) { | |
806 | if ((1ULL << shift) & mask) | |
807 | break; | |
808 | } else { | |
809 | if (1ULL << shift >= | |
810 | buffer_list[0].size + | |
811 | (buffer_list[0].addr & ((1ULL << shift) - 1))) | |
812 | break; | |
813 | } | |
814 | ||
815 | buffer_list[0].size += buffer_list[0].addr & ((1ULL << shift) - 1); | |
816 | buffer_list[0].addr &= ~0ull << shift; | |
817 | ||
818 | mr = kmalloc(sizeof *mr, GFP_KERNEL); | |
819 | if (!mr) | |
820 | return ERR_PTR(-ENOMEM); | |
821 | ||
822 | npages = 0; | |
823 | for (i = 0; i < num_phys_buf; ++i) | |
824 | npages += (buffer_list[i].size + (1ULL << shift) - 1) >> shift; | |
825 | ||
826 | if (!npages) | |
827 | return &mr->ibmr; | |
828 | ||
829 | page_list = kmalloc(npages * sizeof *page_list, GFP_KERNEL); | |
830 | if (!page_list) { | |
831 | kfree(mr); | |
832 | return ERR_PTR(-ENOMEM); | |
833 | } | |
834 | ||
835 | n = 0; | |
836 | for (i = 0; i < num_phys_buf; ++i) | |
837 | for (j = 0; | |
838 | j < (buffer_list[i].size + (1ULL << shift) - 1) >> shift; | |
839 | ++j) | |
840 | page_list[n++] = buffer_list[i].addr + ((u64) j << shift); | |
841 | ||
842 | mthca_dbg(to_mdev(pd->device), "Registering memory at %llx (iova %llx) " | |
843 | "in PD %x; shift %d, npages %d.\n", | |
844 | (unsigned long long) buffer_list[0].addr, | |
845 | (unsigned long long) *iova_start, | |
846 | to_mpd(pd)->pd_num, | |
847 | shift, npages); | |
848 | ||
849 | err = mthca_mr_alloc_phys(to_mdev(pd->device), | |
850 | to_mpd(pd)->pd_num, | |
851 | page_list, shift, npages, | |
852 | *iova_start, total_size, | |
853 | convert_access(acc), mr); | |
854 | ||
855 | if (err) { | |
761f9eb8 | 856 | kfree(page_list); |
1da177e4 LT |
857 | kfree(mr); |
858 | return ERR_PTR(err); | |
859 | } | |
860 | ||
861 | kfree(page_list); | |
862 | return &mr->ibmr; | |
863 | } | |
864 | ||
24d4281b RD |
865 | static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, struct ib_umem *region, |
866 | int acc, struct ib_udata *udata) | |
867 | { | |
868 | struct mthca_dev *dev = to_mdev(pd->device); | |
869 | struct ib_umem_chunk *chunk; | |
870 | struct mthca_mr *mr; | |
871 | u64 *pages; | |
872 | int shift, n, len; | |
873 | int i, j, k; | |
874 | int err = 0; | |
875 | ||
876 | shift = ffs(region->page_size) - 1; | |
877 | ||
878 | mr = kmalloc(sizeof *mr, GFP_KERNEL); | |
879 | if (!mr) | |
880 | return ERR_PTR(-ENOMEM); | |
881 | ||
882 | n = 0; | |
883 | list_for_each_entry(chunk, ®ion->chunk_list, list) | |
884 | n += chunk->nents; | |
885 | ||
886 | mr->mtt = mthca_alloc_mtt(dev, n); | |
887 | if (IS_ERR(mr->mtt)) { | |
888 | err = PTR_ERR(mr->mtt); | |
889 | goto err; | |
890 | } | |
891 | ||
892 | pages = (u64 *) __get_free_page(GFP_KERNEL); | |
893 | if (!pages) { | |
894 | err = -ENOMEM; | |
895 | goto err_mtt; | |
896 | } | |
897 | ||
898 | i = n = 0; | |
899 | ||
900 | list_for_each_entry(chunk, ®ion->chunk_list, list) | |
901 | for (j = 0; j < chunk->nmap; ++j) { | |
902 | len = sg_dma_len(&chunk->page_list[j]) >> shift; | |
903 | for (k = 0; k < len; ++k) { | |
904 | pages[i++] = sg_dma_address(&chunk->page_list[j]) + | |
905 | region->page_size * k; | |
906 | /* | |
907 | * Be friendly to WRITE_MTT command | |
908 | * and leave two empty slots for the | |
909 | * index and reserved fields of the | |
910 | * mailbox. | |
911 | */ | |
912 | if (i == PAGE_SIZE / sizeof (u64) - 2) { | |
913 | err = mthca_write_mtt(dev, mr->mtt, | |
914 | n, pages, i); | |
915 | if (err) | |
916 | goto mtt_done; | |
917 | n += i; | |
918 | i = 0; | |
919 | } | |
920 | } | |
921 | } | |
922 | ||
923 | if (i) | |
924 | err = mthca_write_mtt(dev, mr->mtt, n, pages, i); | |
925 | mtt_done: | |
926 | free_page((unsigned long) pages); | |
927 | if (err) | |
928 | goto err_mtt; | |
929 | ||
930 | err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, shift, region->virt_base, | |
931 | region->length, convert_access(acc), mr); | |
932 | ||
933 | if (err) | |
934 | goto err_mtt; | |
935 | ||
936 | return &mr->ibmr; | |
937 | ||
938 | err_mtt: | |
939 | mthca_free_mtt(dev, mr->mtt); | |
940 | ||
941 | err: | |
942 | kfree(mr); | |
943 | return ERR_PTR(err); | |
944 | } | |
945 | ||
1da177e4 LT |
946 | static int mthca_dereg_mr(struct ib_mr *mr) |
947 | { | |
e464b2a6 RD |
948 | struct mthca_mr *mmr = to_mmr(mr); |
949 | mthca_free_mr(to_mdev(mr->device), mmr); | |
950 | kfree(mmr); | |
1da177e4 LT |
951 | return 0; |
952 | } | |
953 | ||
e0f5fdca MT |
954 | static struct ib_fmr *mthca_alloc_fmr(struct ib_pd *pd, int mr_access_flags, |
955 | struct ib_fmr_attr *fmr_attr) | |
956 | { | |
957 | struct mthca_fmr *fmr; | |
958 | int err; | |
959 | ||
960 | fmr = kmalloc(sizeof *fmr, GFP_KERNEL); | |
961 | if (!fmr) | |
962 | return ERR_PTR(-ENOMEM); | |
963 | ||
964 | memcpy(&fmr->attr, fmr_attr, sizeof *fmr_attr); | |
965 | err = mthca_fmr_alloc(to_mdev(pd->device), to_mpd(pd)->pd_num, | |
966 | convert_access(mr_access_flags), fmr); | |
967 | ||
968 | if (err) { | |
969 | kfree(fmr); | |
970 | return ERR_PTR(err); | |
971 | } | |
972 | ||
973 | return &fmr->ibmr; | |
974 | } | |
975 | ||
976 | static int mthca_dealloc_fmr(struct ib_fmr *fmr) | |
977 | { | |
978 | struct mthca_fmr *mfmr = to_mfmr(fmr); | |
979 | int err; | |
980 | ||
981 | err = mthca_free_fmr(to_mdev(fmr->device), mfmr); | |
982 | if (err) | |
983 | return err; | |
984 | ||
985 | kfree(mfmr); | |
986 | return 0; | |
987 | } | |
988 | ||
989 | static int mthca_unmap_fmr(struct list_head *fmr_list) | |
990 | { | |
991 | struct ib_fmr *fmr; | |
992 | int err; | |
993 | u8 status; | |
994 | struct mthca_dev *mdev = NULL; | |
995 | ||
996 | list_for_each_entry(fmr, fmr_list, list) { | |
997 | if (mdev && to_mdev(fmr->device) != mdev) | |
998 | return -EINVAL; | |
999 | mdev = to_mdev(fmr->device); | |
1000 | } | |
1001 | ||
1002 | if (!mdev) | |
1003 | return 0; | |
1004 | ||
d10ddbf6 | 1005 | if (mthca_is_memfree(mdev)) { |
e0f5fdca MT |
1006 | list_for_each_entry(fmr, fmr_list, list) |
1007 | mthca_arbel_fmr_unmap(mdev, to_mfmr(fmr)); | |
1008 | ||
1009 | wmb(); | |
1010 | } else | |
1011 | list_for_each_entry(fmr, fmr_list, list) | |
1012 | mthca_tavor_fmr_unmap(mdev, to_mfmr(fmr)); | |
1013 | ||
1014 | err = mthca_SYNC_TPT(mdev, &status); | |
1015 | if (err) | |
1016 | return err; | |
1017 | if (status) | |
1018 | return -EINVAL; | |
1019 | return 0; | |
1020 | } | |
1021 | ||
1da177e4 LT |
1022 | static ssize_t show_rev(struct class_device *cdev, char *buf) |
1023 | { | |
1024 | struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); | |
1025 | return sprintf(buf, "%x\n", dev->rev_id); | |
1026 | } | |
1027 | ||
1028 | static ssize_t show_fw_ver(struct class_device *cdev, char *buf) | |
1029 | { | |
1030 | struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); | |
1031 | return sprintf(buf, "%x.%x.%x\n", (int) (dev->fw_ver >> 32), | |
1032 | (int) (dev->fw_ver >> 16) & 0xffff, | |
1033 | (int) dev->fw_ver & 0xffff); | |
1034 | } | |
1035 | ||
1036 | static ssize_t show_hca(struct class_device *cdev, char *buf) | |
1037 | { | |
1038 | struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); | |
68a3c212 RD |
1039 | switch (dev->pdev->device) { |
1040 | case PCI_DEVICE_ID_MELLANOX_TAVOR: | |
1041 | return sprintf(buf, "MT23108\n"); | |
1042 | case PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT: | |
1043 | return sprintf(buf, "MT25208 (MT23108 compat mode)\n"); | |
1044 | case PCI_DEVICE_ID_MELLANOX_ARBEL: | |
1045 | return sprintf(buf, "MT25208\n"); | |
1046 | case PCI_DEVICE_ID_MELLANOX_SINAI: | |
1047 | case PCI_DEVICE_ID_MELLANOX_SINAI_OLD: | |
1048 | return sprintf(buf, "MT25204\n"); | |
1049 | default: | |
1050 | return sprintf(buf, "unknown\n"); | |
1da177e4 LT |
1051 | } |
1052 | } | |
1053 | ||
2e8b981c MT |
1054 | static ssize_t show_board(struct class_device *cdev, char *buf) |
1055 | { | |
1056 | struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); | |
1057 | return sprintf(buf, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id); | |
1058 | } | |
1059 | ||
1da177e4 LT |
1060 | static CLASS_DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
1061 | static CLASS_DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); | |
1062 | static CLASS_DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); | |
2e8b981c | 1063 | static CLASS_DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); |
1da177e4 LT |
1064 | |
1065 | static struct class_device_attribute *mthca_class_attributes[] = { | |
1066 | &class_device_attr_hw_rev, | |
1067 | &class_device_attr_fw_ver, | |
2e8b981c MT |
1068 | &class_device_attr_hca_type, |
1069 | &class_device_attr_board_id | |
1da177e4 LT |
1070 | }; |
1071 | ||
1072 | int mthca_register_device(struct mthca_dev *dev) | |
1073 | { | |
1074 | int ret; | |
1075 | int i; | |
1076 | ||
1077 | strlcpy(dev->ib_dev.name, "mthca%d", IB_DEVICE_NAME_MAX); | |
1cf296b6 RD |
1078 | dev->ib_dev.owner = THIS_MODULE; |
1079 | ||
274c0891 | 1080 | dev->ib_dev.uverbs_abi_ver = MTHCA_UVERBS_ABI_VERSION; |
883a99c7 RD |
1081 | dev->ib_dev.uverbs_cmd_mask = |
1082 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
1083 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
1084 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
1085 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
1086 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
1087 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
1088 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
1089 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
1090 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
1091 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | | |
1092 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
1093 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
1094 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | |
1095 | (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | | |
1096 | (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) | | |
1097 | (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | | |
1098 | (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | | |
1099 | (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); | |
1da177e4 LT |
1100 | dev->ib_dev.node_type = IB_NODE_CA; |
1101 | dev->ib_dev.phys_port_cnt = dev->limits.num_ports; | |
1102 | dev->ib_dev.dma_device = &dev->pdev->dev; | |
1103 | dev->ib_dev.class_dev.dev = &dev->pdev->dev; | |
1104 | dev->ib_dev.query_device = mthca_query_device; | |
1105 | dev->ib_dev.query_port = mthca_query_port; | |
1106 | dev->ib_dev.modify_port = mthca_modify_port; | |
1107 | dev->ib_dev.query_pkey = mthca_query_pkey; | |
1108 | dev->ib_dev.query_gid = mthca_query_gid; | |
5e0b537c RD |
1109 | dev->ib_dev.alloc_ucontext = mthca_alloc_ucontext; |
1110 | dev->ib_dev.dealloc_ucontext = mthca_dealloc_ucontext; | |
53b8b3ff | 1111 | dev->ib_dev.mmap = mthca_mmap_uar; |
1da177e4 LT |
1112 | dev->ib_dev.alloc_pd = mthca_alloc_pd; |
1113 | dev->ib_dev.dealloc_pd = mthca_dealloc_pd; | |
1114 | dev->ib_dev.create_ah = mthca_ah_create; | |
1115 | dev->ib_dev.destroy_ah = mthca_ah_destroy; | |
ec34a922 RD |
1116 | |
1117 | if (dev->mthca_flags & MTHCA_FLAG_SRQ) { | |
1118 | dev->ib_dev.create_srq = mthca_create_srq; | |
90f104da | 1119 | dev->ib_dev.modify_srq = mthca_modify_srq; |
ec34a922 RD |
1120 | dev->ib_dev.destroy_srq = mthca_destroy_srq; |
1121 | ||
1122 | if (mthca_is_memfree(dev)) | |
1123 | dev->ib_dev.post_srq_recv = mthca_arbel_post_srq_recv; | |
1124 | else | |
1125 | dev->ib_dev.post_srq_recv = mthca_tavor_post_srq_recv; | |
1126 | } | |
1127 | ||
1da177e4 LT |
1128 | dev->ib_dev.create_qp = mthca_create_qp; |
1129 | dev->ib_dev.modify_qp = mthca_modify_qp; | |
1130 | dev->ib_dev.destroy_qp = mthca_destroy_qp; | |
1131 | dev->ib_dev.create_cq = mthca_create_cq; | |
1132 | dev->ib_dev.destroy_cq = mthca_destroy_cq; | |
1133 | dev->ib_dev.poll_cq = mthca_poll_cq; | |
1134 | dev->ib_dev.get_dma_mr = mthca_get_dma_mr; | |
1135 | dev->ib_dev.reg_phys_mr = mthca_reg_phys_mr; | |
24d4281b | 1136 | dev->ib_dev.reg_user_mr = mthca_reg_user_mr; |
1da177e4 | 1137 | dev->ib_dev.dereg_mr = mthca_dereg_mr; |
e0f5fdca MT |
1138 | |
1139 | if (dev->mthca_flags & MTHCA_FLAG_FMR) { | |
1140 | dev->ib_dev.alloc_fmr = mthca_alloc_fmr; | |
1141 | dev->ib_dev.unmap_fmr = mthca_unmap_fmr; | |
1142 | dev->ib_dev.dealloc_fmr = mthca_dealloc_fmr; | |
d10ddbf6 | 1143 | if (mthca_is_memfree(dev)) |
e0f5fdca MT |
1144 | dev->ib_dev.map_phys_fmr = mthca_arbel_map_phys_fmr; |
1145 | else | |
1146 | dev->ib_dev.map_phys_fmr = mthca_tavor_map_phys_fmr; | |
1147 | } | |
1148 | ||
1da177e4 LT |
1149 | dev->ib_dev.attach_mcast = mthca_multicast_attach; |
1150 | dev->ib_dev.detach_mcast = mthca_multicast_detach; | |
1151 | dev->ib_dev.process_mad = mthca_process_mad; | |
1152 | ||
d10ddbf6 | 1153 | if (mthca_is_memfree(dev)) { |
1da177e4 LT |
1154 | dev->ib_dev.req_notify_cq = mthca_arbel_arm_cq; |
1155 | dev->ib_dev.post_send = mthca_arbel_post_send; | |
1156 | dev->ib_dev.post_recv = mthca_arbel_post_receive; | |
1157 | } else { | |
1158 | dev->ib_dev.req_notify_cq = mthca_tavor_arm_cq; | |
1159 | dev->ib_dev.post_send = mthca_tavor_post_send; | |
1160 | dev->ib_dev.post_recv = mthca_tavor_post_receive; | |
1161 | } | |
1162 | ||
1163 | init_MUTEX(&dev->cap_mask_mutex); | |
1164 | ||
1165 | ret = ib_register_device(&dev->ib_dev); | |
1166 | if (ret) | |
1167 | return ret; | |
1168 | ||
1169 | for (i = 0; i < ARRAY_SIZE(mthca_class_attributes); ++i) { | |
1170 | ret = class_device_create_file(&dev->ib_dev.class_dev, | |
1171 | mthca_class_attributes[i]); | |
1172 | if (ret) { | |
1173 | ib_unregister_device(&dev->ib_dev); | |
1174 | return ret; | |
1175 | } | |
1176 | } | |
1177 | ||
3d155f8c RD |
1178 | mthca_start_catas_poll(dev); |
1179 | ||
1da177e4 LT |
1180 | return 0; |
1181 | } | |
1182 | ||
1183 | void mthca_unregister_device(struct mthca_dev *dev) | |
1184 | { | |
3d155f8c | 1185 | mthca_stop_catas_poll(dev); |
1da177e4 LT |
1186 | ib_unregister_device(&dev->ib_dev); |
1187 | } |