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. |
4885bf64 | 4 | * Copyright (c) 2005, 2006 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 | * | |
cf311cd4 | 36 | * $Id: mthca_provider.c 4859 2006-01-09 21:55:10Z roland $ |
1da177e4 LT |
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 | 47 | |
87635b71 RD |
48 | static void init_query_mad(struct ib_smp *mad) |
49 | { | |
50 | mad->base_version = 1; | |
51 | mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; | |
52 | mad->class_version = 1; | |
53 | mad->method = IB_MGMT_METHOD_GET; | |
54 | } | |
55 | ||
1da177e4 LT |
56 | static int mthca_query_device(struct ib_device *ibdev, |
57 | struct ib_device_attr *props) | |
58 | { | |
59 | struct ib_smp *in_mad = NULL; | |
60 | struct ib_smp *out_mad = NULL; | |
61 | int err = -ENOMEM; | |
62 | struct mthca_dev* mdev = to_mdev(ibdev); | |
63 | ||
64 | u8 status; | |
65 | ||
105e50a5 | 66 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
1da177e4 LT |
67 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
68 | if (!in_mad || !out_mad) | |
69 | goto out; | |
70 | ||
a852092e | 71 | memset(props, 0, sizeof *props); |
8cf2daf3 | 72 | |
1da177e4 LT |
73 | props->fw_ver = mdev->fw_ver; |
74 | ||
87635b71 RD |
75 | init_query_mad(in_mad); |
76 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; | |
1da177e4 LT |
77 | |
78 | err = mthca_MAD_IFC(mdev, 1, 1, | |
79 | 1, NULL, NULL, in_mad, out_mad, | |
80 | &status); | |
81 | if (err) | |
82 | goto out; | |
83 | if (status) { | |
84 | err = -EINVAL; | |
85 | goto out; | |
86 | } | |
87 | ||
8cf2daf3 | 88 | props->device_cap_flags = mdev->device_cap_flags; |
97f52eb4 | 89 | props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & |
1da177e4 | 90 | 0xffffff; |
97f52eb4 | 91 | props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30)); |
a1c337af | 92 | props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); |
1da177e4 | 93 | memcpy(&props->sys_image_guid, out_mad->data + 4, 8); |
1da177e4 | 94 | |
8cf2daf3 | 95 | props->max_mr_size = ~0ull; |
0f69ce1e | 96 | props->page_size_cap = mdev->limits.page_size_cap; |
8cf2daf3 | 97 | props->max_qp = mdev->limits.num_qps - mdev->limits.reserved_qps; |
efaae8f7 | 98 | props->max_qp_wr = mdev->limits.max_wqes; |
8cf2daf3 RD |
99 | props->max_sge = mdev->limits.max_sg; |
100 | props->max_cq = mdev->limits.num_cqs - mdev->limits.reserved_cqs; | |
efaae8f7 | 101 | props->max_cqe = mdev->limits.max_cqes; |
8cf2daf3 RD |
102 | props->max_mr = mdev->limits.num_mpts - mdev->limits.reserved_mrws; |
103 | props->max_pd = mdev->limits.num_pds - mdev->limits.reserved_pds; | |
104 | props->max_qp_rd_atom = 1 << mdev->qp_table.rdb_shift; | |
efaae8f7 JM |
105 | props->max_qp_init_rd_atom = mdev->limits.max_qp_init_rdma; |
106 | props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; | |
107 | props->max_srq = mdev->limits.num_srqs - mdev->limits.reserved_srqs; | |
108 | props->max_srq_wr = mdev->limits.max_srq_wqes; | |
59fef3b1 | 109 | props->max_srq_sge = mdev->limits.max_srq_sge; |
8cf2daf3 | 110 | props->local_ca_ack_delay = mdev->limits.local_ca_ack_delay; |
2fa5e2eb | 111 | props->atomic_cap = mdev->limits.flags & DEV_LIM_FLAG_ATOMIC ? |
33033b79 | 112 | IB_ATOMIC_HCA : IB_ATOMIC_NONE; |
efaae8f7 JM |
113 | props->max_pkeys = mdev->limits.pkey_table_len; |
114 | props->max_mcast_grp = mdev->limits.num_mgms + mdev->limits.num_amgms; | |
115 | props->max_mcast_qp_attach = MTHCA_QP_PER_MGM; | |
2fa5e2eb | 116 | props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * |
efaae8f7 | 117 | props->max_mcast_grp; |
8cf2daf3 | 118 | |
1da177e4 LT |
119 | err = 0; |
120 | out: | |
121 | kfree(in_mad); | |
122 | kfree(out_mad); | |
123 | return err; | |
124 | } | |
125 | ||
126 | static int mthca_query_port(struct ib_device *ibdev, | |
127 | u8 port, struct ib_port_attr *props) | |
128 | { | |
129 | struct ib_smp *in_mad = NULL; | |
130 | struct ib_smp *out_mad = NULL; | |
131 | int err = -ENOMEM; | |
132 | u8 status; | |
133 | ||
105e50a5 | 134 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
1da177e4 LT |
135 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
136 | if (!in_mad || !out_mad) | |
137 | goto out; | |
138 | ||
d1887ec2 RD |
139 | memset(props, 0, sizeof *props); |
140 | ||
87635b71 RD |
141 | init_query_mad(in_mad); |
142 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; | |
143 | in_mad->attr_mod = cpu_to_be32(port); | |
1da177e4 LT |
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 | ||
6dfc3901 RD |
179 | static int mthca_modify_device(struct ib_device *ibdev, |
180 | int mask, | |
181 | struct ib_device_modify *props) | |
182 | { | |
183 | if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) | |
184 | return -EOPNOTSUPP; | |
185 | ||
186 | if (mask & IB_DEVICE_MODIFY_NODE_DESC) { | |
187 | if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex)) | |
188 | return -ERESTARTSYS; | |
189 | memcpy(ibdev->node_desc, props->node_desc, 64); | |
190 | mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); | |
191 | } | |
192 | ||
193 | return 0; | |
194 | } | |
195 | ||
1da177e4 LT |
196 | static int mthca_modify_port(struct ib_device *ibdev, |
197 | u8 port, int port_modify_mask, | |
198 | struct ib_port_modify *props) | |
199 | { | |
200 | struct mthca_set_ib_param set_ib; | |
201 | struct ib_port_attr attr; | |
202 | int err; | |
203 | u8 status; | |
204 | ||
fd9cfdd1 | 205 | if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex)) |
1da177e4 LT |
206 | return -ERESTARTSYS; |
207 | ||
208 | err = mthca_query_port(ibdev, port, &attr); | |
209 | if (err) | |
210 | goto out; | |
211 | ||
212 | set_ib.set_si_guid = 0; | |
213 | set_ib.reset_qkey_viol = !!(port_modify_mask & IB_PORT_RESET_QKEY_CNTR); | |
214 | ||
215 | set_ib.cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & | |
216 | ~props->clr_port_cap_mask; | |
217 | ||
218 | err = mthca_SET_IB(to_mdev(ibdev), &set_ib, port, &status); | |
219 | if (err) | |
220 | goto out; | |
221 | if (status) { | |
222 | err = -EINVAL; | |
223 | goto out; | |
224 | } | |
225 | ||
226 | out: | |
fd9cfdd1 | 227 | mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); |
1da177e4 LT |
228 | return err; |
229 | } | |
230 | ||
231 | static int mthca_query_pkey(struct ib_device *ibdev, | |
232 | u8 port, u16 index, u16 *pkey) | |
233 | { | |
234 | struct ib_smp *in_mad = NULL; | |
235 | struct ib_smp *out_mad = NULL; | |
236 | int err = -ENOMEM; | |
237 | u8 status; | |
238 | ||
105e50a5 | 239 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
1da177e4 LT |
240 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
241 | if (!in_mad || !out_mad) | |
242 | goto out; | |
243 | ||
87635b71 RD |
244 | init_query_mad(in_mad); |
245 | in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; | |
246 | in_mad->attr_mod = cpu_to_be32(index / 32); | |
1da177e4 LT |
247 | |
248 | err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, | |
249 | port, NULL, NULL, in_mad, out_mad, | |
250 | &status); | |
251 | if (err) | |
252 | goto out; | |
253 | if (status) { | |
254 | err = -EINVAL; | |
255 | goto out; | |
256 | } | |
257 | ||
97f52eb4 | 258 | *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); |
1da177e4 LT |
259 | |
260 | out: | |
261 | kfree(in_mad); | |
262 | kfree(out_mad); | |
263 | return err; | |
264 | } | |
265 | ||
266 | static int mthca_query_gid(struct ib_device *ibdev, u8 port, | |
267 | int index, union ib_gid *gid) | |
268 | { | |
269 | struct ib_smp *in_mad = NULL; | |
270 | struct ib_smp *out_mad = NULL; | |
271 | int err = -ENOMEM; | |
272 | u8 status; | |
273 | ||
105e50a5 | 274 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
1da177e4 LT |
275 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
276 | if (!in_mad || !out_mad) | |
277 | goto out; | |
278 | ||
87635b71 RD |
279 | init_query_mad(in_mad); |
280 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; | |
281 | in_mad->attr_mod = cpu_to_be32(port); | |
1da177e4 LT |
282 | |
283 | err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, | |
284 | port, NULL, NULL, in_mad, out_mad, | |
285 | &status); | |
286 | if (err) | |
287 | goto out; | |
288 | if (status) { | |
289 | err = -EINVAL; | |
290 | goto out; | |
291 | } | |
292 | ||
293 | memcpy(gid->raw, out_mad->data + 8, 8); | |
294 | ||
87635b71 RD |
295 | init_query_mad(in_mad); |
296 | in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; | |
297 | in_mad->attr_mod = cpu_to_be32(index / 8); | |
1da177e4 LT |
298 | |
299 | err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, | |
300 | port, NULL, NULL, in_mad, out_mad, | |
301 | &status); | |
302 | if (err) | |
303 | goto out; | |
304 | if (status) { | |
305 | err = -EINVAL; | |
306 | goto out; | |
307 | } | |
308 | ||
309 | memcpy(gid->raw + 8, out_mad->data + (index % 8) * 16, 8); | |
310 | ||
311 | out: | |
312 | kfree(in_mad); | |
313 | kfree(out_mad); | |
314 | return err; | |
315 | } | |
316 | ||
5e0b537c RD |
317 | static struct ib_ucontext *mthca_alloc_ucontext(struct ib_device *ibdev, |
318 | struct ib_udata *udata) | |
319 | { | |
320 | struct mthca_alloc_ucontext_resp uresp; | |
321 | struct mthca_ucontext *context; | |
322 | int err; | |
323 | ||
324 | memset(&uresp, 0, sizeof uresp); | |
325 | ||
326 | uresp.qp_tab_size = to_mdev(ibdev)->limits.num_qps; | |
327 | if (mthca_is_memfree(to_mdev(ibdev))) | |
328 | uresp.uarc_size = to_mdev(ibdev)->uar_table.uarc_size; | |
329 | else | |
330 | uresp.uarc_size = 0; | |
331 | ||
332 | context = kmalloc(sizeof *context, GFP_KERNEL); | |
333 | if (!context) | |
334 | return ERR_PTR(-ENOMEM); | |
335 | ||
336 | err = mthca_uar_alloc(to_mdev(ibdev), &context->uar); | |
337 | if (err) { | |
338 | kfree(context); | |
339 | return ERR_PTR(err); | |
340 | } | |
341 | ||
342 | context->db_tab = mthca_init_user_db_tab(to_mdev(ibdev)); | |
343 | if (IS_ERR(context->db_tab)) { | |
344 | err = PTR_ERR(context->db_tab); | |
345 | mthca_uar_free(to_mdev(ibdev), &context->uar); | |
346 | kfree(context); | |
347 | return ERR_PTR(err); | |
348 | } | |
349 | ||
350 | if (ib_copy_to_udata(udata, &uresp, sizeof uresp)) { | |
351 | mthca_cleanup_user_db_tab(to_mdev(ibdev), &context->uar, context->db_tab); | |
352 | mthca_uar_free(to_mdev(ibdev), &context->uar); | |
353 | kfree(context); | |
354 | return ERR_PTR(-EFAULT); | |
355 | } | |
356 | ||
357 | return &context->ibucontext; | |
358 | } | |
359 | ||
360 | static int mthca_dealloc_ucontext(struct ib_ucontext *context) | |
361 | { | |
362 | mthca_cleanup_user_db_tab(to_mdev(context->device), &to_mucontext(context)->uar, | |
363 | to_mucontext(context)->db_tab); | |
364 | mthca_uar_free(to_mdev(context->device), &to_mucontext(context)->uar); | |
365 | kfree(to_mucontext(context)); | |
366 | ||
367 | return 0; | |
368 | } | |
369 | ||
53b8b3ff RD |
370 | static int mthca_mmap_uar(struct ib_ucontext *context, |
371 | struct vm_area_struct *vma) | |
372 | { | |
373 | if (vma->vm_end - vma->vm_start != PAGE_SIZE) | |
374 | return -EINVAL; | |
375 | ||
376 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | |
377 | ||
6d376756 MT |
378 | if (io_remap_pfn_range(vma, vma->vm_start, |
379 | to_mucontext(context)->uar.pfn, | |
380 | PAGE_SIZE, vma->vm_page_prot)) | |
53b8b3ff RD |
381 | return -EAGAIN; |
382 | ||
383 | return 0; | |
384 | } | |
385 | ||
1cf296b6 RD |
386 | static struct ib_pd *mthca_alloc_pd(struct ib_device *ibdev, |
387 | struct ib_ucontext *context, | |
388 | struct ib_udata *udata) | |
1da177e4 LT |
389 | { |
390 | struct mthca_pd *pd; | |
391 | int err; | |
392 | ||
393 | pd = kmalloc(sizeof *pd, GFP_KERNEL); | |
394 | if (!pd) | |
395 | return ERR_PTR(-ENOMEM); | |
396 | ||
99264c1e | 397 | err = mthca_pd_alloc(to_mdev(ibdev), !context, pd); |
1da177e4 LT |
398 | if (err) { |
399 | kfree(pd); | |
400 | return ERR_PTR(err); | |
401 | } | |
402 | ||
99264c1e RD |
403 | if (context) { |
404 | if (ib_copy_to_udata(udata, &pd->pd_num, sizeof (__u32))) { | |
405 | mthca_pd_free(to_mdev(ibdev), pd); | |
406 | kfree(pd); | |
407 | return ERR_PTR(-EFAULT); | |
408 | } | |
409 | } | |
410 | ||
1da177e4 LT |
411 | return &pd->ibpd; |
412 | } | |
413 | ||
414 | static int mthca_dealloc_pd(struct ib_pd *pd) | |
415 | { | |
416 | mthca_pd_free(to_mdev(pd->device), to_mpd(pd)); | |
417 | kfree(pd); | |
418 | ||
419 | return 0; | |
420 | } | |
421 | ||
422 | static struct ib_ah *mthca_ah_create(struct ib_pd *pd, | |
423 | struct ib_ah_attr *ah_attr) | |
424 | { | |
425 | int err; | |
426 | struct mthca_ah *ah; | |
427 | ||
8df8a34d | 428 | ah = kmalloc(sizeof *ah, GFP_ATOMIC); |
1da177e4 LT |
429 | if (!ah) |
430 | return ERR_PTR(-ENOMEM); | |
431 | ||
432 | err = mthca_create_ah(to_mdev(pd->device), to_mpd(pd), ah_attr, ah); | |
433 | if (err) { | |
434 | kfree(ah); | |
435 | return ERR_PTR(err); | |
436 | } | |
437 | ||
438 | return &ah->ibah; | |
439 | } | |
440 | ||
441 | static int mthca_ah_destroy(struct ib_ah *ah) | |
442 | { | |
443 | mthca_destroy_ah(to_mdev(ah->device), to_mah(ah)); | |
444 | kfree(ah); | |
445 | ||
446 | return 0; | |
447 | } | |
448 | ||
ec34a922 RD |
449 | static struct ib_srq *mthca_create_srq(struct ib_pd *pd, |
450 | struct ib_srq_init_attr *init_attr, | |
451 | struct ib_udata *udata) | |
452 | { | |
453 | struct mthca_create_srq ucmd; | |
454 | struct mthca_ucontext *context = NULL; | |
455 | struct mthca_srq *srq; | |
456 | int err; | |
457 | ||
458 | srq = kmalloc(sizeof *srq, GFP_KERNEL); | |
459 | if (!srq) | |
460 | return ERR_PTR(-ENOMEM); | |
461 | ||
462 | if (pd->uobject) { | |
463 | context = to_mucontext(pd->uobject->context); | |
464 | ||
17e2e819 JM |
465 | if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { |
466 | err = -EFAULT; | |
467 | goto err_free; | |
468 | } | |
ec34a922 RD |
469 | |
470 | err = mthca_map_user_db(to_mdev(pd->device), &context->uar, | |
471 | context->db_tab, ucmd.db_index, | |
472 | ucmd.db_page); | |
473 | ||
474 | if (err) | |
475 | goto err_free; | |
476 | ||
477 | srq->mr.ibmr.lkey = ucmd.lkey; | |
478 | srq->db_index = ucmd.db_index; | |
479 | } | |
480 | ||
481 | err = mthca_alloc_srq(to_mdev(pd->device), to_mpd(pd), | |
482 | &init_attr->attr, srq); | |
483 | ||
484 | if (err && pd->uobject) | |
485 | mthca_unmap_user_db(to_mdev(pd->device), &context->uar, | |
486 | context->db_tab, ucmd.db_index); | |
487 | ||
488 | if (err) | |
489 | goto err_free; | |
490 | ||
491 | if (context && ib_copy_to_udata(udata, &srq->srqn, sizeof (__u32))) { | |
492 | mthca_free_srq(to_mdev(pd->device), srq); | |
493 | err = -EFAULT; | |
494 | goto err_free; | |
495 | } | |
496 | ||
497 | return &srq->ibsrq; | |
498 | ||
499 | err_free: | |
500 | kfree(srq); | |
501 | ||
502 | return ERR_PTR(err); | |
503 | } | |
504 | ||
505 | static int mthca_destroy_srq(struct ib_srq *srq) | |
506 | { | |
507 | struct mthca_ucontext *context; | |
508 | ||
509 | if (srq->uobject) { | |
510 | context = to_mucontext(srq->uobject->context); | |
511 | ||
512 | mthca_unmap_user_db(to_mdev(srq->device), &context->uar, | |
513 | context->db_tab, to_msrq(srq)->db_index); | |
514 | } | |
515 | ||
516 | mthca_free_srq(to_mdev(srq->device), to_msrq(srq)); | |
517 | kfree(srq); | |
518 | ||
519 | return 0; | |
520 | } | |
521 | ||
1da177e4 | 522 | static struct ib_qp *mthca_create_qp(struct ib_pd *pd, |
1cf296b6 RD |
523 | struct ib_qp_init_attr *init_attr, |
524 | struct ib_udata *udata) | |
1da177e4 | 525 | { |
80c8ec2c | 526 | struct mthca_create_qp ucmd; |
1da177e4 LT |
527 | struct mthca_qp *qp; |
528 | int err; | |
529 | ||
530 | switch (init_attr->qp_type) { | |
531 | case IB_QPT_RC: | |
532 | case IB_QPT_UC: | |
533 | case IB_QPT_UD: | |
534 | { | |
80c8ec2c RD |
535 | struct mthca_ucontext *context; |
536 | ||
1da177e4 LT |
537 | qp = kmalloc(sizeof *qp, GFP_KERNEL); |
538 | if (!qp) | |
539 | return ERR_PTR(-ENOMEM); | |
540 | ||
80c8ec2c RD |
541 | if (pd->uobject) { |
542 | context = to_mucontext(pd->uobject->context); | |
543 | ||
17e2e819 JM |
544 | if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { |
545 | kfree(qp); | |
80c8ec2c | 546 | return ERR_PTR(-EFAULT); |
17e2e819 | 547 | } |
80c8ec2c RD |
548 | |
549 | err = mthca_map_user_db(to_mdev(pd->device), &context->uar, | |
550 | context->db_tab, | |
551 | ucmd.sq_db_index, ucmd.sq_db_page); | |
552 | if (err) { | |
553 | kfree(qp); | |
554 | return ERR_PTR(err); | |
555 | } | |
556 | ||
557 | err = mthca_map_user_db(to_mdev(pd->device), &context->uar, | |
558 | context->db_tab, | |
559 | ucmd.rq_db_index, ucmd.rq_db_page); | |
560 | if (err) { | |
561 | mthca_unmap_user_db(to_mdev(pd->device), | |
562 | &context->uar, | |
563 | context->db_tab, | |
564 | ucmd.sq_db_index); | |
565 | kfree(qp); | |
566 | return ERR_PTR(err); | |
567 | } | |
568 | ||
569 | qp->mr.ibmr.lkey = ucmd.lkey; | |
570 | qp->sq.db_index = ucmd.sq_db_index; | |
571 | qp->rq.db_index = ucmd.rq_db_index; | |
572 | } | |
1da177e4 LT |
573 | |
574 | err = mthca_alloc_qp(to_mdev(pd->device), to_mpd(pd), | |
575 | to_mcq(init_attr->send_cq), | |
576 | to_mcq(init_attr->recv_cq), | |
577 | init_attr->qp_type, init_attr->sq_sig_type, | |
80c8ec2c RD |
578 | &init_attr->cap, qp); |
579 | ||
580 | if (err && pd->uobject) { | |
581 | context = to_mucontext(pd->uobject->context); | |
582 | ||
583 | mthca_unmap_user_db(to_mdev(pd->device), | |
584 | &context->uar, | |
585 | context->db_tab, | |
586 | ucmd.sq_db_index); | |
587 | mthca_unmap_user_db(to_mdev(pd->device), | |
588 | &context->uar, | |
589 | context->db_tab, | |
590 | ucmd.rq_db_index); | |
591 | } | |
592 | ||
1da177e4 LT |
593 | qp->ibqp.qp_num = qp->qpn; |
594 | break; | |
595 | } | |
596 | case IB_QPT_SMI: | |
597 | case IB_QPT_GSI: | |
598 | { | |
80c8ec2c RD |
599 | /* Don't allow userspace to create special QPs */ |
600 | if (pd->uobject) | |
601 | return ERR_PTR(-EINVAL); | |
602 | ||
1da177e4 LT |
603 | qp = kmalloc(sizeof (struct mthca_sqp), GFP_KERNEL); |
604 | if (!qp) | |
605 | return ERR_PTR(-ENOMEM); | |
606 | ||
1da177e4 LT |
607 | qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 : 1; |
608 | ||
609 | err = mthca_alloc_sqp(to_mdev(pd->device), to_mpd(pd), | |
610 | to_mcq(init_attr->send_cq), | |
611 | to_mcq(init_attr->recv_cq), | |
80c8ec2c | 612 | init_attr->sq_sig_type, &init_attr->cap, |
1da177e4 LT |
613 | qp->ibqp.qp_num, init_attr->port_num, |
614 | to_msqp(qp)); | |
615 | break; | |
616 | } | |
617 | default: | |
618 | /* Don't support raw QPs */ | |
619 | return ERR_PTR(-ENOSYS); | |
620 | } | |
621 | ||
622 | if (err) { | |
623 | kfree(qp); | |
624 | return ERR_PTR(err); | |
625 | } | |
626 | ||
80c8ec2c RD |
627 | init_attr->cap.max_send_wr = qp->sq.max; |
628 | init_attr->cap.max_recv_wr = qp->rq.max; | |
629 | init_attr->cap.max_send_sge = qp->sq.max_gs; | |
630 | init_attr->cap.max_recv_sge = qp->rq.max_gs; | |
77369ed3 | 631 | init_attr->cap.max_inline_data = qp->max_inline_data; |
1da177e4 LT |
632 | |
633 | return &qp->ibqp; | |
634 | } | |
635 | ||
636 | static int mthca_destroy_qp(struct ib_qp *qp) | |
637 | { | |
80c8ec2c RD |
638 | if (qp->uobject) { |
639 | mthca_unmap_user_db(to_mdev(qp->device), | |
640 | &to_mucontext(qp->uobject->context)->uar, | |
641 | to_mucontext(qp->uobject->context)->db_tab, | |
642 | to_mqp(qp)->sq.db_index); | |
643 | mthca_unmap_user_db(to_mdev(qp->device), | |
644 | &to_mucontext(qp->uobject->context)->uar, | |
645 | to_mucontext(qp->uobject->context)->db_tab, | |
646 | to_mqp(qp)->rq.db_index); | |
647 | } | |
1da177e4 LT |
648 | mthca_free_qp(to_mdev(qp->device), to_mqp(qp)); |
649 | kfree(qp); | |
650 | return 0; | |
651 | } | |
652 | ||
1cf296b6 RD |
653 | static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, int entries, |
654 | struct ib_ucontext *context, | |
655 | struct ib_udata *udata) | |
1da177e4 | 656 | { |
74c2174e | 657 | struct mthca_create_cq ucmd; |
1da177e4 LT |
658 | struct mthca_cq *cq; |
659 | int nent; | |
660 | int err; | |
661 | ||
efaae8f7 JM |
662 | if (entries < 1 || entries > to_mdev(ibdev)->limits.max_cqes) |
663 | return ERR_PTR(-EINVAL); | |
664 | ||
74c2174e RD |
665 | if (context) { |
666 | if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) | |
667 | return ERR_PTR(-EFAULT); | |
668 | ||
669 | err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, | |
670 | to_mucontext(context)->db_tab, | |
671 | ucmd.set_db_index, ucmd.set_db_page); | |
672 | if (err) | |
673 | return ERR_PTR(err); | |
674 | ||
675 | err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, | |
676 | to_mucontext(context)->db_tab, | |
677 | ucmd.arm_db_index, ucmd.arm_db_page); | |
678 | if (err) | |
679 | goto err_unmap_set; | |
680 | } | |
681 | ||
1da177e4 | 682 | cq = kmalloc(sizeof *cq, GFP_KERNEL); |
74c2174e RD |
683 | if (!cq) { |
684 | err = -ENOMEM; | |
685 | goto err_unmap_arm; | |
686 | } | |
687 | ||
688 | if (context) { | |
4885bf64 RD |
689 | cq->buf.mr.ibmr.lkey = ucmd.lkey; |
690 | cq->set_ci_db_index = ucmd.set_db_index; | |
691 | cq->arm_db_index = ucmd.arm_db_index; | |
74c2174e | 692 | } |
1da177e4 LT |
693 | |
694 | for (nent = 1; nent <= entries; nent <<= 1) | |
695 | ; /* nothing */ | |
696 | ||
74c2174e RD |
697 | err = mthca_init_cq(to_mdev(ibdev), nent, |
698 | context ? to_mucontext(context) : NULL, | |
699 | context ? ucmd.pdn : to_mdev(ibdev)->driver_pd.pd_num, | |
700 | cq); | |
701 | if (err) | |
702 | goto err_free; | |
703 | ||
704 | if (context && ib_copy_to_udata(udata, &cq->cqn, sizeof (__u32))) { | |
705 | mthca_free_cq(to_mdev(ibdev), cq); | |
706 | goto err_free; | |
1da177e4 LT |
707 | } |
708 | ||
4885bf64 RD |
709 | cq->resize_buf = NULL; |
710 | ||
1da177e4 | 711 | return &cq->ibcq; |
74c2174e RD |
712 | |
713 | err_free: | |
714 | kfree(cq); | |
715 | ||
716 | err_unmap_arm: | |
717 | if (context) | |
718 | mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, | |
719 | to_mucontext(context)->db_tab, ucmd.arm_db_index); | |
720 | ||
721 | err_unmap_set: | |
722 | if (context) | |
723 | mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, | |
724 | to_mucontext(context)->db_tab, ucmd.set_db_index); | |
725 | ||
726 | return ERR_PTR(err); | |
1da177e4 LT |
727 | } |
728 | ||
4885bf64 RD |
729 | static int mthca_alloc_resize_buf(struct mthca_dev *dev, struct mthca_cq *cq, |
730 | int entries) | |
731 | { | |
732 | int ret; | |
733 | ||
734 | spin_lock_irq(&cq->lock); | |
735 | if (cq->resize_buf) { | |
736 | ret = -EBUSY; | |
737 | goto unlock; | |
738 | } | |
739 | ||
740 | cq->resize_buf = kmalloc(sizeof *cq->resize_buf, GFP_ATOMIC); | |
741 | if (!cq->resize_buf) { | |
742 | ret = -ENOMEM; | |
743 | goto unlock; | |
744 | } | |
745 | ||
746 | cq->resize_buf->state = CQ_RESIZE_ALLOC; | |
747 | ||
748 | ret = 0; | |
749 | ||
750 | unlock: | |
751 | spin_unlock_irq(&cq->lock); | |
752 | ||
753 | if (ret) | |
754 | return ret; | |
755 | ||
756 | ret = mthca_alloc_cq_buf(dev, &cq->resize_buf->buf, entries); | |
757 | if (ret) { | |
758 | spin_lock_irq(&cq->lock); | |
759 | kfree(cq->resize_buf); | |
760 | cq->resize_buf = NULL; | |
761 | spin_unlock_irq(&cq->lock); | |
762 | return ret; | |
763 | } | |
764 | ||
765 | cq->resize_buf->cqe = entries - 1; | |
766 | ||
767 | spin_lock_irq(&cq->lock); | |
768 | cq->resize_buf->state = CQ_RESIZE_READY; | |
769 | spin_unlock_irq(&cq->lock); | |
770 | ||
771 | return 0; | |
772 | } | |
773 | ||
774 | static int mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata) | |
775 | { | |
776 | struct mthca_dev *dev = to_mdev(ibcq->device); | |
777 | struct mthca_cq *cq = to_mcq(ibcq); | |
778 | struct mthca_resize_cq ucmd; | |
779 | u32 lkey; | |
780 | u8 status; | |
781 | int ret; | |
782 | ||
783 | if (entries < 1 || entries > dev->limits.max_cqes) | |
784 | return -EINVAL; | |
785 | ||
786 | entries = roundup_pow_of_two(entries + 1); | |
787 | if (entries == ibcq->cqe + 1) | |
788 | return 0; | |
789 | ||
790 | if (cq->is_kernel) { | |
791 | ret = mthca_alloc_resize_buf(dev, cq, entries); | |
792 | if (ret) | |
793 | return ret; | |
794 | lkey = cq->resize_buf->buf.mr.ibmr.lkey; | |
795 | } else { | |
796 | if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) | |
797 | return -EFAULT; | |
798 | lkey = ucmd.lkey; | |
799 | } | |
800 | ||
801 | ret = mthca_RESIZE_CQ(dev, cq->cqn, lkey, long_log2(entries), &status); | |
802 | if (status) | |
803 | ret = -EINVAL; | |
804 | ||
805 | if (ret) { | |
806 | if (cq->resize_buf) { | |
807 | mthca_free_cq_buf(dev, &cq->resize_buf->buf, | |
808 | cq->resize_buf->cqe); | |
809 | kfree(cq->resize_buf); | |
810 | spin_lock_irq(&cq->lock); | |
811 | cq->resize_buf = NULL; | |
812 | spin_unlock_irq(&cq->lock); | |
813 | } | |
814 | return ret; | |
815 | } | |
816 | ||
817 | if (cq->is_kernel) { | |
818 | struct mthca_cq_buf tbuf; | |
819 | int tcqe; | |
820 | ||
821 | spin_lock_irq(&cq->lock); | |
822 | if (cq->resize_buf->state == CQ_RESIZE_READY) { | |
823 | mthca_cq_resize_copy_cqes(cq); | |
824 | tbuf = cq->buf; | |
825 | tcqe = cq->ibcq.cqe; | |
826 | cq->buf = cq->resize_buf->buf; | |
827 | cq->ibcq.cqe = cq->resize_buf->cqe; | |
828 | } else { | |
829 | tbuf = cq->resize_buf->buf; | |
830 | tcqe = cq->resize_buf->cqe; | |
831 | } | |
832 | ||
833 | kfree(cq->resize_buf); | |
834 | cq->resize_buf = NULL; | |
835 | spin_unlock_irq(&cq->lock); | |
836 | ||
837 | mthca_free_cq_buf(dev, &tbuf, tcqe); | |
838 | } else | |
839 | ibcq->cqe = entries - 1; | |
840 | ||
841 | return 0; | |
842 | } | |
843 | ||
1da177e4 LT |
844 | static int mthca_destroy_cq(struct ib_cq *cq) |
845 | { | |
74c2174e RD |
846 | if (cq->uobject) { |
847 | mthca_unmap_user_db(to_mdev(cq->device), | |
848 | &to_mucontext(cq->uobject->context)->uar, | |
849 | to_mucontext(cq->uobject->context)->db_tab, | |
850 | to_mcq(cq)->arm_db_index); | |
851 | mthca_unmap_user_db(to_mdev(cq->device), | |
852 | &to_mucontext(cq->uobject->context)->uar, | |
853 | to_mucontext(cq->uobject->context)->db_tab, | |
854 | to_mcq(cq)->set_ci_db_index); | |
855 | } | |
1da177e4 LT |
856 | mthca_free_cq(to_mdev(cq->device), to_mcq(cq)); |
857 | kfree(cq); | |
858 | ||
859 | return 0; | |
860 | } | |
861 | ||
862 | static inline u32 convert_access(int acc) | |
863 | { | |
864 | return (acc & IB_ACCESS_REMOTE_ATOMIC ? MTHCA_MPT_FLAG_ATOMIC : 0) | | |
865 | (acc & IB_ACCESS_REMOTE_WRITE ? MTHCA_MPT_FLAG_REMOTE_WRITE : 0) | | |
866 | (acc & IB_ACCESS_REMOTE_READ ? MTHCA_MPT_FLAG_REMOTE_READ : 0) | | |
867 | (acc & IB_ACCESS_LOCAL_WRITE ? MTHCA_MPT_FLAG_LOCAL_WRITE : 0) | | |
868 | MTHCA_MPT_FLAG_LOCAL_READ; | |
869 | } | |
870 | ||
871 | static struct ib_mr *mthca_get_dma_mr(struct ib_pd *pd, int acc) | |
872 | { | |
873 | struct mthca_mr *mr; | |
874 | int err; | |
875 | ||
876 | mr = kmalloc(sizeof *mr, GFP_KERNEL); | |
877 | if (!mr) | |
878 | return ERR_PTR(-ENOMEM); | |
879 | ||
880 | err = mthca_mr_alloc_notrans(to_mdev(pd->device), | |
881 | to_mpd(pd)->pd_num, | |
882 | convert_access(acc), mr); | |
883 | ||
884 | if (err) { | |
885 | kfree(mr); | |
886 | return ERR_PTR(err); | |
887 | } | |
888 | ||
889 | return &mr->ibmr; | |
890 | } | |
891 | ||
892 | static struct ib_mr *mthca_reg_phys_mr(struct ib_pd *pd, | |
893 | struct ib_phys_buf *buffer_list, | |
894 | int num_phys_buf, | |
895 | int acc, | |
896 | u64 *iova_start) | |
897 | { | |
898 | struct mthca_mr *mr; | |
899 | u64 *page_list; | |
900 | u64 total_size; | |
901 | u64 mask; | |
902 | int shift; | |
903 | int npages; | |
904 | int err; | |
905 | int i, j, n; | |
906 | ||
907 | /* First check that we have enough alignment */ | |
908 | if ((*iova_start & ~PAGE_MASK) != (buffer_list[0].addr & ~PAGE_MASK)) | |
909 | return ERR_PTR(-EINVAL); | |
910 | ||
1da177e4 LT |
911 | mask = 0; |
912 | total_size = 0; | |
913 | for (i = 0; i < num_phys_buf; ++i) { | |
6627fa66 MT |
914 | if (i != 0) |
915 | mask |= buffer_list[i].addr; | |
916 | if (i != num_phys_buf - 1) | |
917 | mask |= buffer_list[i].addr + buffer_list[i].size; | |
1da177e4 LT |
918 | |
919 | total_size += buffer_list[i].size; | |
1da177e4 LT |
920 | } |
921 | ||
6627fa66 MT |
922 | if (mask & ~PAGE_MASK) |
923 | return ERR_PTR(-EINVAL); | |
924 | ||
1da177e4 LT |
925 | /* Find largest page shift we can use to cover buffers */ |
926 | for (shift = PAGE_SHIFT; shift < 31; ++shift) | |
927 | if (num_phys_buf > 1) { | |
928 | if ((1ULL << shift) & mask) | |
929 | break; | |
930 | } else { | |
931 | if (1ULL << shift >= | |
932 | buffer_list[0].size + | |
933 | (buffer_list[0].addr & ((1ULL << shift) - 1))) | |
934 | break; | |
935 | } | |
936 | ||
937 | buffer_list[0].size += buffer_list[0].addr & ((1ULL << shift) - 1); | |
938 | buffer_list[0].addr &= ~0ull << shift; | |
939 | ||
940 | mr = kmalloc(sizeof *mr, GFP_KERNEL); | |
941 | if (!mr) | |
942 | return ERR_PTR(-ENOMEM); | |
943 | ||
944 | npages = 0; | |
945 | for (i = 0; i < num_phys_buf; ++i) | |
946 | npages += (buffer_list[i].size + (1ULL << shift) - 1) >> shift; | |
947 | ||
948 | if (!npages) | |
949 | return &mr->ibmr; | |
950 | ||
951 | page_list = kmalloc(npages * sizeof *page_list, GFP_KERNEL); | |
952 | if (!page_list) { | |
953 | kfree(mr); | |
954 | return ERR_PTR(-ENOMEM); | |
955 | } | |
956 | ||
957 | n = 0; | |
958 | for (i = 0; i < num_phys_buf; ++i) | |
959 | for (j = 0; | |
960 | j < (buffer_list[i].size + (1ULL << shift) - 1) >> shift; | |
961 | ++j) | |
962 | page_list[n++] = buffer_list[i].addr + ((u64) j << shift); | |
963 | ||
964 | mthca_dbg(to_mdev(pd->device), "Registering memory at %llx (iova %llx) " | |
965 | "in PD %x; shift %d, npages %d.\n", | |
966 | (unsigned long long) buffer_list[0].addr, | |
967 | (unsigned long long) *iova_start, | |
968 | to_mpd(pd)->pd_num, | |
969 | shift, npages); | |
970 | ||
971 | err = mthca_mr_alloc_phys(to_mdev(pd->device), | |
972 | to_mpd(pd)->pd_num, | |
973 | page_list, shift, npages, | |
974 | *iova_start, total_size, | |
975 | convert_access(acc), mr); | |
976 | ||
977 | if (err) { | |
761f9eb8 | 978 | kfree(page_list); |
1da177e4 LT |
979 | kfree(mr); |
980 | return ERR_PTR(err); | |
981 | } | |
982 | ||
983 | kfree(page_list); | |
984 | return &mr->ibmr; | |
985 | } | |
986 | ||
24d4281b RD |
987 | static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, struct ib_umem *region, |
988 | int acc, struct ib_udata *udata) | |
989 | { | |
990 | struct mthca_dev *dev = to_mdev(pd->device); | |
991 | struct ib_umem_chunk *chunk; | |
992 | struct mthca_mr *mr; | |
993 | u64 *pages; | |
994 | int shift, n, len; | |
995 | int i, j, k; | |
996 | int err = 0; | |
997 | ||
998 | shift = ffs(region->page_size) - 1; | |
999 | ||
1000 | mr = kmalloc(sizeof *mr, GFP_KERNEL); | |
1001 | if (!mr) | |
1002 | return ERR_PTR(-ENOMEM); | |
1003 | ||
1004 | n = 0; | |
1005 | list_for_each_entry(chunk, ®ion->chunk_list, list) | |
1006 | n += chunk->nents; | |
1007 | ||
1008 | mr->mtt = mthca_alloc_mtt(dev, n); | |
1009 | if (IS_ERR(mr->mtt)) { | |
1010 | err = PTR_ERR(mr->mtt); | |
1011 | goto err; | |
1012 | } | |
1013 | ||
1014 | pages = (u64 *) __get_free_page(GFP_KERNEL); | |
1015 | if (!pages) { | |
1016 | err = -ENOMEM; | |
1017 | goto err_mtt; | |
1018 | } | |
1019 | ||
1020 | i = n = 0; | |
1021 | ||
1022 | list_for_each_entry(chunk, ®ion->chunk_list, list) | |
1023 | for (j = 0; j < chunk->nmap; ++j) { | |
1024 | len = sg_dma_len(&chunk->page_list[j]) >> shift; | |
1025 | for (k = 0; k < len; ++k) { | |
1026 | pages[i++] = sg_dma_address(&chunk->page_list[j]) + | |
1027 | region->page_size * k; | |
1028 | /* | |
1029 | * Be friendly to WRITE_MTT command | |
1030 | * and leave two empty slots for the | |
1031 | * index and reserved fields of the | |
1032 | * mailbox. | |
1033 | */ | |
1034 | if (i == PAGE_SIZE / sizeof (u64) - 2) { | |
1035 | err = mthca_write_mtt(dev, mr->mtt, | |
1036 | n, pages, i); | |
1037 | if (err) | |
1038 | goto mtt_done; | |
1039 | n += i; | |
1040 | i = 0; | |
1041 | } | |
1042 | } | |
1043 | } | |
1044 | ||
1045 | if (i) | |
1046 | err = mthca_write_mtt(dev, mr->mtt, n, pages, i); | |
1047 | mtt_done: | |
1048 | free_page((unsigned long) pages); | |
1049 | if (err) | |
1050 | goto err_mtt; | |
1051 | ||
1052 | err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, shift, region->virt_base, | |
1053 | region->length, convert_access(acc), mr); | |
1054 | ||
1055 | if (err) | |
1056 | goto err_mtt; | |
1057 | ||
1058 | return &mr->ibmr; | |
1059 | ||
1060 | err_mtt: | |
1061 | mthca_free_mtt(dev, mr->mtt); | |
1062 | ||
1063 | err: | |
1064 | kfree(mr); | |
1065 | return ERR_PTR(err); | |
1066 | } | |
1067 | ||
1da177e4 LT |
1068 | static int mthca_dereg_mr(struct ib_mr *mr) |
1069 | { | |
e464b2a6 RD |
1070 | struct mthca_mr *mmr = to_mmr(mr); |
1071 | mthca_free_mr(to_mdev(mr->device), mmr); | |
1072 | kfree(mmr); | |
1da177e4 LT |
1073 | return 0; |
1074 | } | |
1075 | ||
e0f5fdca MT |
1076 | static struct ib_fmr *mthca_alloc_fmr(struct ib_pd *pd, int mr_access_flags, |
1077 | struct ib_fmr_attr *fmr_attr) | |
1078 | { | |
1079 | struct mthca_fmr *fmr; | |
1080 | int err; | |
1081 | ||
1082 | fmr = kmalloc(sizeof *fmr, GFP_KERNEL); | |
1083 | if (!fmr) | |
1084 | return ERR_PTR(-ENOMEM); | |
1085 | ||
1086 | memcpy(&fmr->attr, fmr_attr, sizeof *fmr_attr); | |
1087 | err = mthca_fmr_alloc(to_mdev(pd->device), to_mpd(pd)->pd_num, | |
1088 | convert_access(mr_access_flags), fmr); | |
1089 | ||
1090 | if (err) { | |
1091 | kfree(fmr); | |
1092 | return ERR_PTR(err); | |
1093 | } | |
1094 | ||
1095 | return &fmr->ibmr; | |
1096 | } | |
1097 | ||
1098 | static int mthca_dealloc_fmr(struct ib_fmr *fmr) | |
1099 | { | |
1100 | struct mthca_fmr *mfmr = to_mfmr(fmr); | |
1101 | int err; | |
1102 | ||
1103 | err = mthca_free_fmr(to_mdev(fmr->device), mfmr); | |
1104 | if (err) | |
1105 | return err; | |
1106 | ||
1107 | kfree(mfmr); | |
1108 | return 0; | |
1109 | } | |
1110 | ||
1111 | static int mthca_unmap_fmr(struct list_head *fmr_list) | |
1112 | { | |
1113 | struct ib_fmr *fmr; | |
1114 | int err; | |
1115 | u8 status; | |
1116 | struct mthca_dev *mdev = NULL; | |
1117 | ||
1118 | list_for_each_entry(fmr, fmr_list, list) { | |
1119 | if (mdev && to_mdev(fmr->device) != mdev) | |
1120 | return -EINVAL; | |
1121 | mdev = to_mdev(fmr->device); | |
1122 | } | |
1123 | ||
1124 | if (!mdev) | |
1125 | return 0; | |
1126 | ||
d10ddbf6 | 1127 | if (mthca_is_memfree(mdev)) { |
e0f5fdca MT |
1128 | list_for_each_entry(fmr, fmr_list, list) |
1129 | mthca_arbel_fmr_unmap(mdev, to_mfmr(fmr)); | |
1130 | ||
1131 | wmb(); | |
1132 | } else | |
1133 | list_for_each_entry(fmr, fmr_list, list) | |
1134 | mthca_tavor_fmr_unmap(mdev, to_mfmr(fmr)); | |
1135 | ||
1136 | err = mthca_SYNC_TPT(mdev, &status); | |
1137 | if (err) | |
1138 | return err; | |
1139 | if (status) | |
1140 | return -EINVAL; | |
1141 | return 0; | |
1142 | } | |
1143 | ||
1da177e4 LT |
1144 | static ssize_t show_rev(struct class_device *cdev, char *buf) |
1145 | { | |
1146 | struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); | |
1147 | return sprintf(buf, "%x\n", dev->rev_id); | |
1148 | } | |
1149 | ||
1150 | static ssize_t show_fw_ver(struct class_device *cdev, char *buf) | |
1151 | { | |
1152 | struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); | |
87cfe323 | 1153 | return sprintf(buf, "%d.%d.%d\n", (int) (dev->fw_ver >> 32), |
1da177e4 LT |
1154 | (int) (dev->fw_ver >> 16) & 0xffff, |
1155 | (int) dev->fw_ver & 0xffff); | |
1156 | } | |
1157 | ||
1158 | static ssize_t show_hca(struct class_device *cdev, char *buf) | |
1159 | { | |
1160 | struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); | |
68a3c212 RD |
1161 | switch (dev->pdev->device) { |
1162 | case PCI_DEVICE_ID_MELLANOX_TAVOR: | |
1163 | return sprintf(buf, "MT23108\n"); | |
1164 | case PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT: | |
1165 | return sprintf(buf, "MT25208 (MT23108 compat mode)\n"); | |
1166 | case PCI_DEVICE_ID_MELLANOX_ARBEL: | |
1167 | return sprintf(buf, "MT25208\n"); | |
1168 | case PCI_DEVICE_ID_MELLANOX_SINAI: | |
1169 | case PCI_DEVICE_ID_MELLANOX_SINAI_OLD: | |
1170 | return sprintf(buf, "MT25204\n"); | |
1171 | default: | |
1172 | return sprintf(buf, "unknown\n"); | |
1da177e4 LT |
1173 | } |
1174 | } | |
1175 | ||
2e8b981c MT |
1176 | static ssize_t show_board(struct class_device *cdev, char *buf) |
1177 | { | |
1178 | struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); | |
1179 | return sprintf(buf, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id); | |
1180 | } | |
1181 | ||
1da177e4 LT |
1182 | static CLASS_DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
1183 | static CLASS_DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); | |
1184 | static CLASS_DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); | |
2e8b981c | 1185 | static CLASS_DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); |
1da177e4 LT |
1186 | |
1187 | static struct class_device_attribute *mthca_class_attributes[] = { | |
1188 | &class_device_attr_hw_rev, | |
1189 | &class_device_attr_fw_ver, | |
2e8b981c MT |
1190 | &class_device_attr_hca_type, |
1191 | &class_device_attr_board_id | |
1da177e4 LT |
1192 | }; |
1193 | ||
cf311cd4 SH |
1194 | static int mthca_init_node_data(struct mthca_dev *dev) |
1195 | { | |
1196 | struct ib_smp *in_mad = NULL; | |
1197 | struct ib_smp *out_mad = NULL; | |
1198 | int err = -ENOMEM; | |
1199 | u8 status; | |
1200 | ||
1201 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
1202 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
1203 | if (!in_mad || !out_mad) | |
1204 | goto out; | |
1205 | ||
1206 | init_query_mad(in_mad); | |
6dfc3901 RD |
1207 | in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; |
1208 | ||
1209 | err = mthca_MAD_IFC(dev, 1, 1, | |
1210 | 1, NULL, NULL, in_mad, out_mad, | |
1211 | &status); | |
1212 | if (err) | |
1213 | goto out; | |
1214 | if (status) { | |
1215 | err = -EINVAL; | |
1216 | goto out; | |
1217 | } | |
1218 | ||
1219 | memcpy(dev->ib_dev.node_desc, out_mad->data, 64); | |
1220 | ||
cf311cd4 SH |
1221 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; |
1222 | ||
1223 | err = mthca_MAD_IFC(dev, 1, 1, | |
1224 | 1, NULL, NULL, in_mad, out_mad, | |
1225 | &status); | |
1226 | if (err) | |
1227 | goto out; | |
1228 | if (status) { | |
1229 | err = -EINVAL; | |
1230 | goto out; | |
1231 | } | |
1232 | ||
1233 | memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); | |
1234 | ||
1235 | out: | |
1236 | kfree(in_mad); | |
1237 | kfree(out_mad); | |
1238 | return err; | |
1239 | } | |
1240 | ||
1da177e4 LT |
1241 | int mthca_register_device(struct mthca_dev *dev) |
1242 | { | |
1243 | int ret; | |
1244 | int i; | |
1245 | ||
cf311cd4 SH |
1246 | ret = mthca_init_node_data(dev); |
1247 | if (ret) | |
1248 | return ret; | |
1249 | ||
1da177e4 | 1250 | strlcpy(dev->ib_dev.name, "mthca%d", IB_DEVICE_NAME_MAX); |
1cf296b6 RD |
1251 | dev->ib_dev.owner = THIS_MODULE; |
1252 | ||
274c0891 | 1253 | dev->ib_dev.uverbs_abi_ver = MTHCA_UVERBS_ABI_VERSION; |
883a99c7 RD |
1254 | dev->ib_dev.uverbs_cmd_mask = |
1255 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
1256 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
1257 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
1258 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
1259 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
1260 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
1261 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
1262 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
1263 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
4885bf64 | 1264 | (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | |
883a99c7 RD |
1265 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | |
1266 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
8ebe5077 | 1267 | (1ull << IB_USER_VERBS_CMD_QUERY_QP) | |
883a99c7 RD |
1268 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | |
1269 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | |
1270 | (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | | |
1271 | (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) | | |
1272 | (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | | |
1273 | (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | | |
8ebe5077 | 1274 | (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | |
883a99c7 | 1275 | (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); |
1da177e4 LT |
1276 | dev->ib_dev.node_type = IB_NODE_CA; |
1277 | dev->ib_dev.phys_port_cnt = dev->limits.num_ports; | |
1278 | dev->ib_dev.dma_device = &dev->pdev->dev; | |
1279 | dev->ib_dev.class_dev.dev = &dev->pdev->dev; | |
1280 | dev->ib_dev.query_device = mthca_query_device; | |
1281 | dev->ib_dev.query_port = mthca_query_port; | |
6dfc3901 | 1282 | dev->ib_dev.modify_device = mthca_modify_device; |
1da177e4 LT |
1283 | dev->ib_dev.modify_port = mthca_modify_port; |
1284 | dev->ib_dev.query_pkey = mthca_query_pkey; | |
1285 | dev->ib_dev.query_gid = mthca_query_gid; | |
5e0b537c RD |
1286 | dev->ib_dev.alloc_ucontext = mthca_alloc_ucontext; |
1287 | dev->ib_dev.dealloc_ucontext = mthca_dealloc_ucontext; | |
53b8b3ff | 1288 | dev->ib_dev.mmap = mthca_mmap_uar; |
1da177e4 LT |
1289 | dev->ib_dev.alloc_pd = mthca_alloc_pd; |
1290 | dev->ib_dev.dealloc_pd = mthca_dealloc_pd; | |
1291 | dev->ib_dev.create_ah = mthca_ah_create; | |
1d89b1ae | 1292 | dev->ib_dev.query_ah = mthca_ah_query; |
1da177e4 | 1293 | dev->ib_dev.destroy_ah = mthca_ah_destroy; |
ec34a922 RD |
1294 | |
1295 | if (dev->mthca_flags & MTHCA_FLAG_SRQ) { | |
1296 | dev->ib_dev.create_srq = mthca_create_srq; | |
8ebe5077 EC |
1297 | dev->ib_dev.modify_srq = mthca_modify_srq; |
1298 | dev->ib_dev.query_srq = mthca_query_srq; | |
ec34a922 RD |
1299 | dev->ib_dev.destroy_srq = mthca_destroy_srq; |
1300 | ||
1301 | if (mthca_is_memfree(dev)) | |
1302 | dev->ib_dev.post_srq_recv = mthca_arbel_post_srq_recv; | |
1303 | else | |
1304 | dev->ib_dev.post_srq_recv = mthca_tavor_post_srq_recv; | |
1305 | } | |
1306 | ||
1da177e4 LT |
1307 | dev->ib_dev.create_qp = mthca_create_qp; |
1308 | dev->ib_dev.modify_qp = mthca_modify_qp; | |
8ebe5077 | 1309 | dev->ib_dev.query_qp = mthca_query_qp; |
1da177e4 LT |
1310 | dev->ib_dev.destroy_qp = mthca_destroy_qp; |
1311 | dev->ib_dev.create_cq = mthca_create_cq; | |
4885bf64 | 1312 | dev->ib_dev.resize_cq = mthca_resize_cq; |
1da177e4 LT |
1313 | dev->ib_dev.destroy_cq = mthca_destroy_cq; |
1314 | dev->ib_dev.poll_cq = mthca_poll_cq; | |
1315 | dev->ib_dev.get_dma_mr = mthca_get_dma_mr; | |
1316 | dev->ib_dev.reg_phys_mr = mthca_reg_phys_mr; | |
24d4281b | 1317 | dev->ib_dev.reg_user_mr = mthca_reg_user_mr; |
1da177e4 | 1318 | dev->ib_dev.dereg_mr = mthca_dereg_mr; |
e0f5fdca MT |
1319 | |
1320 | if (dev->mthca_flags & MTHCA_FLAG_FMR) { | |
1321 | dev->ib_dev.alloc_fmr = mthca_alloc_fmr; | |
1322 | dev->ib_dev.unmap_fmr = mthca_unmap_fmr; | |
1323 | dev->ib_dev.dealloc_fmr = mthca_dealloc_fmr; | |
d10ddbf6 | 1324 | if (mthca_is_memfree(dev)) |
e0f5fdca MT |
1325 | dev->ib_dev.map_phys_fmr = mthca_arbel_map_phys_fmr; |
1326 | else | |
1327 | dev->ib_dev.map_phys_fmr = mthca_tavor_map_phys_fmr; | |
1328 | } | |
1329 | ||
1da177e4 LT |
1330 | dev->ib_dev.attach_mcast = mthca_multicast_attach; |
1331 | dev->ib_dev.detach_mcast = mthca_multicast_detach; | |
1332 | dev->ib_dev.process_mad = mthca_process_mad; | |
1333 | ||
d10ddbf6 | 1334 | if (mthca_is_memfree(dev)) { |
1da177e4 LT |
1335 | dev->ib_dev.req_notify_cq = mthca_arbel_arm_cq; |
1336 | dev->ib_dev.post_send = mthca_arbel_post_send; | |
1337 | dev->ib_dev.post_recv = mthca_arbel_post_receive; | |
1338 | } else { | |
1339 | dev->ib_dev.req_notify_cq = mthca_tavor_arm_cq; | |
1340 | dev->ib_dev.post_send = mthca_tavor_post_send; | |
1341 | dev->ib_dev.post_recv = mthca_tavor_post_receive; | |
1342 | } | |
1343 | ||
fd9cfdd1 | 1344 | mutex_init(&dev->cap_mask_mutex); |
1da177e4 LT |
1345 | |
1346 | ret = ib_register_device(&dev->ib_dev); | |
1347 | if (ret) | |
1348 | return ret; | |
1349 | ||
1350 | for (i = 0; i < ARRAY_SIZE(mthca_class_attributes); ++i) { | |
1351 | ret = class_device_create_file(&dev->ib_dev.class_dev, | |
1352 | mthca_class_attributes[i]); | |
1353 | if (ret) { | |
1354 | ib_unregister_device(&dev->ib_dev); | |
1355 | return ret; | |
1356 | } | |
1357 | } | |
1358 | ||
3d155f8c RD |
1359 | mthca_start_catas_poll(dev); |
1360 | ||
1da177e4 LT |
1361 | return 0; |
1362 | } | |
1363 | ||
1364 | void mthca_unregister_device(struct mthca_dev *dev) | |
1365 | { | |
3d155f8c | 1366 | mthca_stop_catas_poll(dev); |
1da177e4 LT |
1367 | ib_unregister_device(&dev->ib_dev); |
1368 | } |