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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. | |
1da177e4 LT |
35 | */ |
36 | ||
a4d61e84 | 37 | #include <rdma/ib_smi.h> |
f7c6a7b5 | 38 | #include <rdma/ib_umem.h> |
883a99c7 | 39 | #include <rdma/ib_user_verbs.h> |
baaad380 RD |
40 | |
41 | #include <linux/sched.h> | |
5a0e3ad6 | 42 | #include <linux/slab.h> |
53b8b3ff | 43 | #include <linux/mm.h> |
1da177e4 LT |
44 | |
45 | #include "mthca_dev.h" | |
46 | #include "mthca_cmd.h" | |
5e0b537c RD |
47 | #include "mthca_user.h" |
48 | #include "mthca_memfree.h" | |
1da177e4 | 49 | |
87635b71 RD |
50 | static void init_query_mad(struct ib_smp *mad) |
51 | { | |
52 | mad->base_version = 1; | |
53 | mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; | |
54 | mad->class_version = 1; | |
55 | mad->method = IB_MGMT_METHOD_GET; | |
56 | } | |
57 | ||
1da177e4 LT |
58 | static int mthca_query_device(struct ib_device *ibdev, |
59 | struct ib_device_attr *props) | |
60 | { | |
61 | struct ib_smp *in_mad = NULL; | |
62 | struct ib_smp *out_mad = NULL; | |
63 | int err = -ENOMEM; | |
b3999393 | 64 | struct mthca_dev *mdev = to_mdev(ibdev); |
1da177e4 LT |
65 | |
66 | u8 status; | |
67 | ||
105e50a5 | 68 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
1da177e4 LT |
69 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
70 | if (!in_mad || !out_mad) | |
71 | goto out; | |
72 | ||
a852092e | 73 | memset(props, 0, sizeof *props); |
8cf2daf3 | 74 | |
1da177e4 LT |
75 | props->fw_ver = mdev->fw_ver; |
76 | ||
87635b71 RD |
77 | init_query_mad(in_mad); |
78 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; | |
1da177e4 LT |
79 | |
80 | err = mthca_MAD_IFC(mdev, 1, 1, | |
81 | 1, NULL, NULL, in_mad, out_mad, | |
82 | &status); | |
83 | if (err) | |
84 | goto out; | |
85 | if (status) { | |
86 | err = -EINVAL; | |
87 | goto out; | |
88 | } | |
89 | ||
8cf2daf3 | 90 | props->device_cap_flags = mdev->device_cap_flags; |
97f52eb4 | 91 | props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & |
1da177e4 | 92 | 0xffffff; |
97f52eb4 | 93 | props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30)); |
a1c337af | 94 | props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); |
1da177e4 | 95 | memcpy(&props->sys_image_guid, out_mad->data + 4, 8); |
1da177e4 | 96 | |
8cf2daf3 | 97 | props->max_mr_size = ~0ull; |
0f69ce1e | 98 | props->page_size_cap = mdev->limits.page_size_cap; |
8cf2daf3 | 99 | props->max_qp = mdev->limits.num_qps - mdev->limits.reserved_qps; |
efaae8f7 | 100 | props->max_qp_wr = mdev->limits.max_wqes; |
8cf2daf3 RD |
101 | props->max_sge = mdev->limits.max_sg; |
102 | props->max_cq = mdev->limits.num_cqs - mdev->limits.reserved_cqs; | |
efaae8f7 | 103 | props->max_cqe = mdev->limits.max_cqes; |
8cf2daf3 RD |
104 | props->max_mr = mdev->limits.num_mpts - mdev->limits.reserved_mrws; |
105 | props->max_pd = mdev->limits.num_pds - mdev->limits.reserved_pds; | |
106 | props->max_qp_rd_atom = 1 << mdev->qp_table.rdb_shift; | |
efaae8f7 JM |
107 | props->max_qp_init_rd_atom = mdev->limits.max_qp_init_rdma; |
108 | props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; | |
109 | props->max_srq = mdev->limits.num_srqs - mdev->limits.reserved_srqs; | |
110 | props->max_srq_wr = mdev->limits.max_srq_wqes; | |
59fef3b1 | 111 | props->max_srq_sge = mdev->limits.max_srq_sge; |
8cf2daf3 | 112 | props->local_ca_ack_delay = mdev->limits.local_ca_ack_delay; |
2fa5e2eb | 113 | props->atomic_cap = mdev->limits.flags & DEV_LIM_FLAG_ATOMIC ? |
33033b79 | 114 | IB_ATOMIC_HCA : IB_ATOMIC_NONE; |
efaae8f7 JM |
115 | props->max_pkeys = mdev->limits.pkey_table_len; |
116 | props->max_mcast_grp = mdev->limits.num_mgms + mdev->limits.num_amgms; | |
117 | props->max_mcast_qp_attach = MTHCA_QP_PER_MGM; | |
2fa5e2eb | 118 | props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * |
efaae8f7 | 119 | props->max_mcast_grp; |
d4cb0784 OG |
120 | /* |
121 | * If Sinai memory key optimization is being used, then only | |
122 | * the 8-bit key portion will change. For other HCAs, the | |
123 | * unused index bits will also be used for FMR remapping. | |
124 | */ | |
125 | if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT) | |
126 | props->max_map_per_fmr = 255; | |
127 | else | |
128 | props->max_map_per_fmr = | |
f0d1b0b3 | 129 | (1 << (32 - ilog2(mdev->limits.num_mpts))) - 1; |
8cf2daf3 | 130 | |
1da177e4 LT |
131 | err = 0; |
132 | out: | |
133 | kfree(in_mad); | |
134 | kfree(out_mad); | |
135 | return err; | |
136 | } | |
137 | ||
138 | static int mthca_query_port(struct ib_device *ibdev, | |
139 | u8 port, struct ib_port_attr *props) | |
140 | { | |
141 | struct ib_smp *in_mad = NULL; | |
142 | struct ib_smp *out_mad = NULL; | |
143 | int err = -ENOMEM; | |
144 | u8 status; | |
145 | ||
105e50a5 | 146 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
1da177e4 LT |
147 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
148 | if (!in_mad || !out_mad) | |
149 | goto out; | |
150 | ||
d1887ec2 RD |
151 | memset(props, 0, sizeof *props); |
152 | ||
87635b71 RD |
153 | init_query_mad(in_mad); |
154 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; | |
155 | in_mad->attr_mod = cpu_to_be32(port); | |
1da177e4 LT |
156 | |
157 | err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, | |
158 | port, NULL, NULL, in_mad, out_mad, | |
159 | &status); | |
160 | if (err) | |
161 | goto out; | |
162 | if (status) { | |
163 | err = -EINVAL; | |
164 | goto out; | |
165 | } | |
166 | ||
97f52eb4 | 167 | props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); |
1da177e4 | 168 | props->lmc = out_mad->data[34] & 0x7; |
97f52eb4 | 169 | props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); |
1da177e4 LT |
170 | props->sm_sl = out_mad->data[36] & 0xf; |
171 | props->state = out_mad->data[32] & 0xf; | |
172 | props->phys_state = out_mad->data[33] >> 4; | |
97f52eb4 | 173 | props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); |
1da177e4 | 174 | props->gid_tbl_len = to_mdev(ibdev)->limits.gid_table_len; |
d1887ec2 | 175 | props->max_msg_sz = 0x80000000; |
1da177e4 | 176 | props->pkey_tbl_len = to_mdev(ibdev)->limits.pkey_table_len; |
9825051e | 177 | props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); |
97f52eb4 | 178 | props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); |
1da177e4 LT |
179 | props->active_width = out_mad->data[31] & 0xf; |
180 | props->active_speed = out_mad->data[35] >> 4; | |
9825051e JM |
181 | props->max_mtu = out_mad->data[41] & 0xf; |
182 | props->active_mtu = out_mad->data[36] >> 4; | |
183 | props->subnet_timeout = out_mad->data[51] & 0x1f; | |
a8bf4e77 JM |
184 | props->max_vl_num = out_mad->data[37] >> 4; |
185 | props->init_type_reply = out_mad->data[41] >> 4; | |
1da177e4 LT |
186 | |
187 | out: | |
188 | kfree(in_mad); | |
189 | kfree(out_mad); | |
190 | return err; | |
191 | } | |
192 | ||
6dfc3901 RD |
193 | static int mthca_modify_device(struct ib_device *ibdev, |
194 | int mask, | |
195 | struct ib_device_modify *props) | |
196 | { | |
197 | if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) | |
198 | return -EOPNOTSUPP; | |
199 | ||
200 | if (mask & IB_DEVICE_MODIFY_NODE_DESC) { | |
201 | if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex)) | |
202 | return -ERESTARTSYS; | |
203 | memcpy(ibdev->node_desc, props->node_desc, 64); | |
204 | mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); | |
205 | } | |
206 | ||
207 | return 0; | |
208 | } | |
209 | ||
1da177e4 LT |
210 | static int mthca_modify_port(struct ib_device *ibdev, |
211 | u8 port, int port_modify_mask, | |
212 | struct ib_port_modify *props) | |
213 | { | |
214 | struct mthca_set_ib_param set_ib; | |
215 | struct ib_port_attr attr; | |
216 | int err; | |
217 | u8 status; | |
218 | ||
fd9cfdd1 | 219 | if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex)) |
1da177e4 LT |
220 | return -ERESTARTSYS; |
221 | ||
222 | err = mthca_query_port(ibdev, port, &attr); | |
223 | if (err) | |
224 | goto out; | |
225 | ||
226 | set_ib.set_si_guid = 0; | |
227 | set_ib.reset_qkey_viol = !!(port_modify_mask & IB_PORT_RESET_QKEY_CNTR); | |
228 | ||
229 | set_ib.cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & | |
230 | ~props->clr_port_cap_mask; | |
231 | ||
232 | err = mthca_SET_IB(to_mdev(ibdev), &set_ib, port, &status); | |
233 | if (err) | |
234 | goto out; | |
235 | if (status) { | |
236 | err = -EINVAL; | |
237 | goto out; | |
238 | } | |
239 | ||
240 | out: | |
fd9cfdd1 | 241 | mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); |
1da177e4 LT |
242 | return err; |
243 | } | |
244 | ||
245 | static int mthca_query_pkey(struct ib_device *ibdev, | |
246 | u8 port, u16 index, u16 *pkey) | |
247 | { | |
248 | struct ib_smp *in_mad = NULL; | |
249 | struct ib_smp *out_mad = NULL; | |
250 | int err = -ENOMEM; | |
251 | u8 status; | |
252 | ||
105e50a5 | 253 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
1da177e4 LT |
254 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
255 | if (!in_mad || !out_mad) | |
256 | goto out; | |
257 | ||
87635b71 RD |
258 | init_query_mad(in_mad); |
259 | in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; | |
260 | in_mad->attr_mod = cpu_to_be32(index / 32); | |
1da177e4 LT |
261 | |
262 | err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, | |
263 | port, NULL, NULL, in_mad, out_mad, | |
264 | &status); | |
265 | if (err) | |
266 | goto out; | |
267 | if (status) { | |
268 | err = -EINVAL; | |
269 | goto out; | |
270 | } | |
271 | ||
97f52eb4 | 272 | *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); |
1da177e4 LT |
273 | |
274 | out: | |
275 | kfree(in_mad); | |
276 | kfree(out_mad); | |
277 | return err; | |
278 | } | |
279 | ||
280 | static int mthca_query_gid(struct ib_device *ibdev, u8 port, | |
281 | int index, union ib_gid *gid) | |
282 | { | |
283 | struct ib_smp *in_mad = NULL; | |
284 | struct ib_smp *out_mad = NULL; | |
285 | int err = -ENOMEM; | |
286 | u8 status; | |
287 | ||
105e50a5 | 288 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); |
1da177e4 LT |
289 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); |
290 | if (!in_mad || !out_mad) | |
291 | goto out; | |
292 | ||
87635b71 RD |
293 | init_query_mad(in_mad); |
294 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; | |
295 | in_mad->attr_mod = cpu_to_be32(port); | |
1da177e4 LT |
296 | |
297 | err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, | |
298 | port, NULL, NULL, in_mad, out_mad, | |
299 | &status); | |
300 | if (err) | |
301 | goto out; | |
302 | if (status) { | |
303 | err = -EINVAL; | |
304 | goto out; | |
305 | } | |
306 | ||
307 | memcpy(gid->raw, out_mad->data + 8, 8); | |
308 | ||
87635b71 RD |
309 | init_query_mad(in_mad); |
310 | in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; | |
311 | in_mad->attr_mod = cpu_to_be32(index / 8); | |
1da177e4 LT |
312 | |
313 | err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, | |
314 | port, NULL, NULL, in_mad, out_mad, | |
315 | &status); | |
316 | if (err) | |
317 | goto out; | |
318 | if (status) { | |
319 | err = -EINVAL; | |
320 | goto out; | |
321 | } | |
322 | ||
254abfd3 | 323 | memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); |
1da177e4 LT |
324 | |
325 | out: | |
326 | kfree(in_mad); | |
327 | kfree(out_mad); | |
328 | return err; | |
329 | } | |
330 | ||
5e0b537c RD |
331 | static struct ib_ucontext *mthca_alloc_ucontext(struct ib_device *ibdev, |
332 | struct ib_udata *udata) | |
333 | { | |
334 | struct mthca_alloc_ucontext_resp uresp; | |
335 | struct mthca_ucontext *context; | |
336 | int err; | |
337 | ||
d8410647 JM |
338 | if (!(to_mdev(ibdev)->active)) |
339 | return ERR_PTR(-EAGAIN); | |
340 | ||
5e0b537c RD |
341 | memset(&uresp, 0, sizeof uresp); |
342 | ||
343 | uresp.qp_tab_size = to_mdev(ibdev)->limits.num_qps; | |
344 | if (mthca_is_memfree(to_mdev(ibdev))) | |
345 | uresp.uarc_size = to_mdev(ibdev)->uar_table.uarc_size; | |
346 | else | |
347 | uresp.uarc_size = 0; | |
348 | ||
349 | context = kmalloc(sizeof *context, GFP_KERNEL); | |
350 | if (!context) | |
351 | return ERR_PTR(-ENOMEM); | |
352 | ||
353 | err = mthca_uar_alloc(to_mdev(ibdev), &context->uar); | |
354 | if (err) { | |
355 | kfree(context); | |
356 | return ERR_PTR(err); | |
357 | } | |
358 | ||
359 | context->db_tab = mthca_init_user_db_tab(to_mdev(ibdev)); | |
360 | if (IS_ERR(context->db_tab)) { | |
361 | err = PTR_ERR(context->db_tab); | |
362 | mthca_uar_free(to_mdev(ibdev), &context->uar); | |
363 | kfree(context); | |
364 | return ERR_PTR(err); | |
365 | } | |
366 | ||
367 | if (ib_copy_to_udata(udata, &uresp, sizeof uresp)) { | |
368 | mthca_cleanup_user_db_tab(to_mdev(ibdev), &context->uar, context->db_tab); | |
369 | mthca_uar_free(to_mdev(ibdev), &context->uar); | |
370 | kfree(context); | |
371 | return ERR_PTR(-EFAULT); | |
372 | } | |
373 | ||
baaad380 RD |
374 | context->reg_mr_warned = 0; |
375 | ||
5e0b537c RD |
376 | return &context->ibucontext; |
377 | } | |
378 | ||
379 | static int mthca_dealloc_ucontext(struct ib_ucontext *context) | |
380 | { | |
381 | mthca_cleanup_user_db_tab(to_mdev(context->device), &to_mucontext(context)->uar, | |
382 | to_mucontext(context)->db_tab); | |
383 | mthca_uar_free(to_mdev(context->device), &to_mucontext(context)->uar); | |
384 | kfree(to_mucontext(context)); | |
385 | ||
386 | return 0; | |
387 | } | |
388 | ||
53b8b3ff RD |
389 | static int mthca_mmap_uar(struct ib_ucontext *context, |
390 | struct vm_area_struct *vma) | |
391 | { | |
392 | if (vma->vm_end - vma->vm_start != PAGE_SIZE) | |
393 | return -EINVAL; | |
394 | ||
395 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | |
396 | ||
6d376756 MT |
397 | if (io_remap_pfn_range(vma, vma->vm_start, |
398 | to_mucontext(context)->uar.pfn, | |
399 | PAGE_SIZE, vma->vm_page_prot)) | |
53b8b3ff RD |
400 | return -EAGAIN; |
401 | ||
402 | return 0; | |
403 | } | |
404 | ||
1cf296b6 RD |
405 | static struct ib_pd *mthca_alloc_pd(struct ib_device *ibdev, |
406 | struct ib_ucontext *context, | |
407 | struct ib_udata *udata) | |
1da177e4 LT |
408 | { |
409 | struct mthca_pd *pd; | |
410 | int err; | |
411 | ||
412 | pd = kmalloc(sizeof *pd, GFP_KERNEL); | |
413 | if (!pd) | |
414 | return ERR_PTR(-ENOMEM); | |
415 | ||
99264c1e | 416 | err = mthca_pd_alloc(to_mdev(ibdev), !context, pd); |
1da177e4 LT |
417 | if (err) { |
418 | kfree(pd); | |
419 | return ERR_PTR(err); | |
420 | } | |
421 | ||
99264c1e RD |
422 | if (context) { |
423 | if (ib_copy_to_udata(udata, &pd->pd_num, sizeof (__u32))) { | |
424 | mthca_pd_free(to_mdev(ibdev), pd); | |
425 | kfree(pd); | |
426 | return ERR_PTR(-EFAULT); | |
427 | } | |
428 | } | |
429 | ||
1da177e4 LT |
430 | return &pd->ibpd; |
431 | } | |
432 | ||
433 | static int mthca_dealloc_pd(struct ib_pd *pd) | |
434 | { | |
435 | mthca_pd_free(to_mdev(pd->device), to_mpd(pd)); | |
436 | kfree(pd); | |
437 | ||
438 | return 0; | |
439 | } | |
440 | ||
441 | static struct ib_ah *mthca_ah_create(struct ib_pd *pd, | |
442 | struct ib_ah_attr *ah_attr) | |
443 | { | |
444 | int err; | |
445 | struct mthca_ah *ah; | |
446 | ||
8df8a34d | 447 | ah = kmalloc(sizeof *ah, GFP_ATOMIC); |
1da177e4 LT |
448 | if (!ah) |
449 | return ERR_PTR(-ENOMEM); | |
450 | ||
451 | err = mthca_create_ah(to_mdev(pd->device), to_mpd(pd), ah_attr, ah); | |
452 | if (err) { | |
453 | kfree(ah); | |
454 | return ERR_PTR(err); | |
455 | } | |
456 | ||
457 | return &ah->ibah; | |
458 | } | |
459 | ||
460 | static int mthca_ah_destroy(struct ib_ah *ah) | |
461 | { | |
462 | mthca_destroy_ah(to_mdev(ah->device), to_mah(ah)); | |
463 | kfree(ah); | |
464 | ||
465 | return 0; | |
466 | } | |
467 | ||
ec34a922 RD |
468 | static struct ib_srq *mthca_create_srq(struct ib_pd *pd, |
469 | struct ib_srq_init_attr *init_attr, | |
470 | struct ib_udata *udata) | |
471 | { | |
472 | struct mthca_create_srq ucmd; | |
473 | struct mthca_ucontext *context = NULL; | |
474 | struct mthca_srq *srq; | |
475 | int err; | |
476 | ||
477 | srq = kmalloc(sizeof *srq, GFP_KERNEL); | |
478 | if (!srq) | |
479 | return ERR_PTR(-ENOMEM); | |
480 | ||
481 | if (pd->uobject) { | |
482 | context = to_mucontext(pd->uobject->context); | |
483 | ||
17e2e819 JM |
484 | if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { |
485 | err = -EFAULT; | |
486 | goto err_free; | |
487 | } | |
ec34a922 RD |
488 | |
489 | err = mthca_map_user_db(to_mdev(pd->device), &context->uar, | |
490 | context->db_tab, ucmd.db_index, | |
491 | ucmd.db_page); | |
492 | ||
493 | if (err) | |
494 | goto err_free; | |
495 | ||
496 | srq->mr.ibmr.lkey = ucmd.lkey; | |
497 | srq->db_index = ucmd.db_index; | |
498 | } | |
499 | ||
500 | err = mthca_alloc_srq(to_mdev(pd->device), to_mpd(pd), | |
501 | &init_attr->attr, srq); | |
502 | ||
503 | if (err && pd->uobject) | |
504 | mthca_unmap_user_db(to_mdev(pd->device), &context->uar, | |
505 | context->db_tab, ucmd.db_index); | |
506 | ||
507 | if (err) | |
508 | goto err_free; | |
509 | ||
510 | if (context && ib_copy_to_udata(udata, &srq->srqn, sizeof (__u32))) { | |
511 | mthca_free_srq(to_mdev(pd->device), srq); | |
512 | err = -EFAULT; | |
513 | goto err_free; | |
514 | } | |
515 | ||
516 | return &srq->ibsrq; | |
517 | ||
518 | err_free: | |
519 | kfree(srq); | |
520 | ||
521 | return ERR_PTR(err); | |
522 | } | |
523 | ||
524 | static int mthca_destroy_srq(struct ib_srq *srq) | |
525 | { | |
526 | struct mthca_ucontext *context; | |
527 | ||
528 | if (srq->uobject) { | |
529 | context = to_mucontext(srq->uobject->context); | |
530 | ||
531 | mthca_unmap_user_db(to_mdev(srq->device), &context->uar, | |
532 | context->db_tab, to_msrq(srq)->db_index); | |
533 | } | |
534 | ||
535 | mthca_free_srq(to_mdev(srq->device), to_msrq(srq)); | |
536 | kfree(srq); | |
537 | ||
538 | return 0; | |
539 | } | |
540 | ||
1da177e4 | 541 | static struct ib_qp *mthca_create_qp(struct ib_pd *pd, |
1cf296b6 RD |
542 | struct ib_qp_init_attr *init_attr, |
543 | struct ib_udata *udata) | |
1da177e4 | 544 | { |
80c8ec2c | 545 | struct mthca_create_qp ucmd; |
1da177e4 LT |
546 | struct mthca_qp *qp; |
547 | int err; | |
548 | ||
b846f25a EC |
549 | if (init_attr->create_flags) |
550 | return ERR_PTR(-EINVAL); | |
551 | ||
1da177e4 LT |
552 | switch (init_attr->qp_type) { |
553 | case IB_QPT_RC: | |
554 | case IB_QPT_UC: | |
555 | case IB_QPT_UD: | |
556 | { | |
80c8ec2c RD |
557 | struct mthca_ucontext *context; |
558 | ||
1da177e4 LT |
559 | qp = kmalloc(sizeof *qp, GFP_KERNEL); |
560 | if (!qp) | |
561 | return ERR_PTR(-ENOMEM); | |
562 | ||
80c8ec2c RD |
563 | if (pd->uobject) { |
564 | context = to_mucontext(pd->uobject->context); | |
565 | ||
17e2e819 JM |
566 | if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { |
567 | kfree(qp); | |
80c8ec2c | 568 | return ERR_PTR(-EFAULT); |
17e2e819 | 569 | } |
80c8ec2c RD |
570 | |
571 | err = mthca_map_user_db(to_mdev(pd->device), &context->uar, | |
572 | context->db_tab, | |
573 | ucmd.sq_db_index, ucmd.sq_db_page); | |
574 | if (err) { | |
575 | kfree(qp); | |
576 | return ERR_PTR(err); | |
577 | } | |
578 | ||
579 | err = mthca_map_user_db(to_mdev(pd->device), &context->uar, | |
580 | context->db_tab, | |
581 | ucmd.rq_db_index, ucmd.rq_db_page); | |
582 | if (err) { | |
583 | mthca_unmap_user_db(to_mdev(pd->device), | |
584 | &context->uar, | |
585 | context->db_tab, | |
586 | ucmd.sq_db_index); | |
587 | kfree(qp); | |
588 | return ERR_PTR(err); | |
589 | } | |
590 | ||
591 | qp->mr.ibmr.lkey = ucmd.lkey; | |
592 | qp->sq.db_index = ucmd.sq_db_index; | |
593 | qp->rq.db_index = ucmd.rq_db_index; | |
594 | } | |
1da177e4 LT |
595 | |
596 | err = mthca_alloc_qp(to_mdev(pd->device), to_mpd(pd), | |
597 | to_mcq(init_attr->send_cq), | |
598 | to_mcq(init_attr->recv_cq), | |
599 | init_attr->qp_type, init_attr->sq_sig_type, | |
80c8ec2c RD |
600 | &init_attr->cap, qp); |
601 | ||
602 | if (err && pd->uobject) { | |
603 | context = to_mucontext(pd->uobject->context); | |
604 | ||
605 | mthca_unmap_user_db(to_mdev(pd->device), | |
606 | &context->uar, | |
607 | context->db_tab, | |
608 | ucmd.sq_db_index); | |
609 | mthca_unmap_user_db(to_mdev(pd->device), | |
610 | &context->uar, | |
611 | context->db_tab, | |
612 | ucmd.rq_db_index); | |
613 | } | |
614 | ||
1da177e4 LT |
615 | qp->ibqp.qp_num = qp->qpn; |
616 | break; | |
617 | } | |
618 | case IB_QPT_SMI: | |
619 | case IB_QPT_GSI: | |
620 | { | |
80c8ec2c RD |
621 | /* Don't allow userspace to create special QPs */ |
622 | if (pd->uobject) | |
623 | return ERR_PTR(-EINVAL); | |
624 | ||
1da177e4 LT |
625 | qp = kmalloc(sizeof (struct mthca_sqp), GFP_KERNEL); |
626 | if (!qp) | |
627 | return ERR_PTR(-ENOMEM); | |
628 | ||
1da177e4 LT |
629 | qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 : 1; |
630 | ||
631 | err = mthca_alloc_sqp(to_mdev(pd->device), to_mpd(pd), | |
632 | to_mcq(init_attr->send_cq), | |
633 | to_mcq(init_attr->recv_cq), | |
80c8ec2c | 634 | init_attr->sq_sig_type, &init_attr->cap, |
1da177e4 LT |
635 | qp->ibqp.qp_num, init_attr->port_num, |
636 | to_msqp(qp)); | |
637 | break; | |
638 | } | |
639 | default: | |
640 | /* Don't support raw QPs */ | |
641 | return ERR_PTR(-ENOSYS); | |
642 | } | |
643 | ||
644 | if (err) { | |
645 | kfree(qp); | |
646 | return ERR_PTR(err); | |
647 | } | |
648 | ||
80c8ec2c RD |
649 | init_attr->cap.max_send_wr = qp->sq.max; |
650 | init_attr->cap.max_recv_wr = qp->rq.max; | |
651 | init_attr->cap.max_send_sge = qp->sq.max_gs; | |
652 | init_attr->cap.max_recv_sge = qp->rq.max_gs; | |
77369ed3 | 653 | init_attr->cap.max_inline_data = qp->max_inline_data; |
1da177e4 LT |
654 | |
655 | return &qp->ibqp; | |
656 | } | |
657 | ||
658 | static int mthca_destroy_qp(struct ib_qp *qp) | |
659 | { | |
80c8ec2c RD |
660 | if (qp->uobject) { |
661 | mthca_unmap_user_db(to_mdev(qp->device), | |
662 | &to_mucontext(qp->uobject->context)->uar, | |
663 | to_mucontext(qp->uobject->context)->db_tab, | |
664 | to_mqp(qp)->sq.db_index); | |
665 | mthca_unmap_user_db(to_mdev(qp->device), | |
666 | &to_mucontext(qp->uobject->context)->uar, | |
667 | to_mucontext(qp->uobject->context)->db_tab, | |
668 | to_mqp(qp)->rq.db_index); | |
669 | } | |
1da177e4 LT |
670 | mthca_free_qp(to_mdev(qp->device), to_mqp(qp)); |
671 | kfree(qp); | |
672 | return 0; | |
673 | } | |
674 | ||
1cf296b6 | 675 | static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, int entries, |
f4fd0b22 | 676 | int comp_vector, |
1cf296b6 RD |
677 | struct ib_ucontext *context, |
678 | struct ib_udata *udata) | |
1da177e4 | 679 | { |
74c2174e | 680 | struct mthca_create_cq ucmd; |
1da177e4 LT |
681 | struct mthca_cq *cq; |
682 | int nent; | |
683 | int err; | |
684 | ||
efaae8f7 JM |
685 | if (entries < 1 || entries > to_mdev(ibdev)->limits.max_cqes) |
686 | return ERR_PTR(-EINVAL); | |
687 | ||
74c2174e RD |
688 | if (context) { |
689 | if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) | |
690 | return ERR_PTR(-EFAULT); | |
691 | ||
692 | err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, | |
693 | to_mucontext(context)->db_tab, | |
694 | ucmd.set_db_index, ucmd.set_db_page); | |
695 | if (err) | |
696 | return ERR_PTR(err); | |
697 | ||
698 | err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, | |
699 | to_mucontext(context)->db_tab, | |
700 | ucmd.arm_db_index, ucmd.arm_db_page); | |
701 | if (err) | |
702 | goto err_unmap_set; | |
703 | } | |
704 | ||
1da177e4 | 705 | cq = kmalloc(sizeof *cq, GFP_KERNEL); |
74c2174e RD |
706 | if (!cq) { |
707 | err = -ENOMEM; | |
708 | goto err_unmap_arm; | |
709 | } | |
710 | ||
711 | if (context) { | |
4885bf64 RD |
712 | cq->buf.mr.ibmr.lkey = ucmd.lkey; |
713 | cq->set_ci_db_index = ucmd.set_db_index; | |
714 | cq->arm_db_index = ucmd.arm_db_index; | |
74c2174e | 715 | } |
1da177e4 LT |
716 | |
717 | for (nent = 1; nent <= entries; nent <<= 1) | |
718 | ; /* nothing */ | |
719 | ||
74c2174e RD |
720 | err = mthca_init_cq(to_mdev(ibdev), nent, |
721 | context ? to_mucontext(context) : NULL, | |
722 | context ? ucmd.pdn : to_mdev(ibdev)->driver_pd.pd_num, | |
723 | cq); | |
724 | if (err) | |
725 | goto err_free; | |
726 | ||
727 | if (context && ib_copy_to_udata(udata, &cq->cqn, sizeof (__u32))) { | |
728 | mthca_free_cq(to_mdev(ibdev), cq); | |
729 | goto err_free; | |
1da177e4 LT |
730 | } |
731 | ||
4885bf64 RD |
732 | cq->resize_buf = NULL; |
733 | ||
1da177e4 | 734 | return &cq->ibcq; |
74c2174e RD |
735 | |
736 | err_free: | |
737 | kfree(cq); | |
738 | ||
739 | err_unmap_arm: | |
740 | if (context) | |
741 | mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, | |
742 | to_mucontext(context)->db_tab, ucmd.arm_db_index); | |
743 | ||
744 | err_unmap_set: | |
745 | if (context) | |
746 | mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, | |
747 | to_mucontext(context)->db_tab, ucmd.set_db_index); | |
748 | ||
749 | return ERR_PTR(err); | |
1da177e4 LT |
750 | } |
751 | ||
4885bf64 RD |
752 | static int mthca_alloc_resize_buf(struct mthca_dev *dev, struct mthca_cq *cq, |
753 | int entries) | |
754 | { | |
755 | int ret; | |
756 | ||
757 | spin_lock_irq(&cq->lock); | |
758 | if (cq->resize_buf) { | |
759 | ret = -EBUSY; | |
760 | goto unlock; | |
761 | } | |
762 | ||
763 | cq->resize_buf = kmalloc(sizeof *cq->resize_buf, GFP_ATOMIC); | |
764 | if (!cq->resize_buf) { | |
765 | ret = -ENOMEM; | |
766 | goto unlock; | |
767 | } | |
768 | ||
769 | cq->resize_buf->state = CQ_RESIZE_ALLOC; | |
770 | ||
771 | ret = 0; | |
772 | ||
773 | unlock: | |
774 | spin_unlock_irq(&cq->lock); | |
775 | ||
776 | if (ret) | |
777 | return ret; | |
778 | ||
779 | ret = mthca_alloc_cq_buf(dev, &cq->resize_buf->buf, entries); | |
780 | if (ret) { | |
781 | spin_lock_irq(&cq->lock); | |
782 | kfree(cq->resize_buf); | |
783 | cq->resize_buf = NULL; | |
784 | spin_unlock_irq(&cq->lock); | |
785 | return ret; | |
786 | } | |
787 | ||
788 | cq->resize_buf->cqe = entries - 1; | |
789 | ||
790 | spin_lock_irq(&cq->lock); | |
791 | cq->resize_buf->state = CQ_RESIZE_READY; | |
792 | spin_unlock_irq(&cq->lock); | |
793 | ||
794 | return 0; | |
795 | } | |
796 | ||
797 | static int mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata) | |
798 | { | |
799 | struct mthca_dev *dev = to_mdev(ibcq->device); | |
800 | struct mthca_cq *cq = to_mcq(ibcq); | |
801 | struct mthca_resize_cq ucmd; | |
802 | u32 lkey; | |
803 | u8 status; | |
804 | int ret; | |
805 | ||
806 | if (entries < 1 || entries > dev->limits.max_cqes) | |
807 | return -EINVAL; | |
808 | ||
c93b6fba RD |
809 | mutex_lock(&cq->mutex); |
810 | ||
4885bf64 | 811 | entries = roundup_pow_of_two(entries + 1); |
c93b6fba RD |
812 | if (entries == ibcq->cqe + 1) { |
813 | ret = 0; | |
814 | goto out; | |
815 | } | |
4885bf64 RD |
816 | |
817 | if (cq->is_kernel) { | |
818 | ret = mthca_alloc_resize_buf(dev, cq, entries); | |
819 | if (ret) | |
c93b6fba | 820 | goto out; |
4885bf64 RD |
821 | lkey = cq->resize_buf->buf.mr.ibmr.lkey; |
822 | } else { | |
c93b6fba RD |
823 | if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { |
824 | ret = -EFAULT; | |
825 | goto out; | |
826 | } | |
4885bf64 RD |
827 | lkey = ucmd.lkey; |
828 | } | |
829 | ||
f0d1b0b3 | 830 | ret = mthca_RESIZE_CQ(dev, cq->cqn, lkey, ilog2(entries), &status); |
4885bf64 RD |
831 | if (status) |
832 | ret = -EINVAL; | |
833 | ||
834 | if (ret) { | |
835 | if (cq->resize_buf) { | |
836 | mthca_free_cq_buf(dev, &cq->resize_buf->buf, | |
837 | cq->resize_buf->cqe); | |
838 | kfree(cq->resize_buf); | |
839 | spin_lock_irq(&cq->lock); | |
840 | cq->resize_buf = NULL; | |
841 | spin_unlock_irq(&cq->lock); | |
842 | } | |
c93b6fba | 843 | goto out; |
4885bf64 RD |
844 | } |
845 | ||
846 | if (cq->is_kernel) { | |
847 | struct mthca_cq_buf tbuf; | |
848 | int tcqe; | |
849 | ||
850 | spin_lock_irq(&cq->lock); | |
851 | if (cq->resize_buf->state == CQ_RESIZE_READY) { | |
852 | mthca_cq_resize_copy_cqes(cq); | |
853 | tbuf = cq->buf; | |
854 | tcqe = cq->ibcq.cqe; | |
855 | cq->buf = cq->resize_buf->buf; | |
856 | cq->ibcq.cqe = cq->resize_buf->cqe; | |
857 | } else { | |
858 | tbuf = cq->resize_buf->buf; | |
859 | tcqe = cq->resize_buf->cqe; | |
860 | } | |
861 | ||
862 | kfree(cq->resize_buf); | |
863 | cq->resize_buf = NULL; | |
864 | spin_unlock_irq(&cq->lock); | |
865 | ||
866 | mthca_free_cq_buf(dev, &tbuf, tcqe); | |
867 | } else | |
868 | ibcq->cqe = entries - 1; | |
869 | ||
c93b6fba RD |
870 | out: |
871 | mutex_unlock(&cq->mutex); | |
872 | ||
873 | return ret; | |
4885bf64 RD |
874 | } |
875 | ||
1da177e4 LT |
876 | static int mthca_destroy_cq(struct ib_cq *cq) |
877 | { | |
74c2174e RD |
878 | if (cq->uobject) { |
879 | mthca_unmap_user_db(to_mdev(cq->device), | |
880 | &to_mucontext(cq->uobject->context)->uar, | |
881 | to_mucontext(cq->uobject->context)->db_tab, | |
882 | to_mcq(cq)->arm_db_index); | |
883 | mthca_unmap_user_db(to_mdev(cq->device), | |
884 | &to_mucontext(cq->uobject->context)->uar, | |
885 | to_mucontext(cq->uobject->context)->db_tab, | |
886 | to_mcq(cq)->set_ci_db_index); | |
887 | } | |
1da177e4 LT |
888 | mthca_free_cq(to_mdev(cq->device), to_mcq(cq)); |
889 | kfree(cq); | |
890 | ||
891 | return 0; | |
892 | } | |
893 | ||
894 | static inline u32 convert_access(int acc) | |
895 | { | |
896 | return (acc & IB_ACCESS_REMOTE_ATOMIC ? MTHCA_MPT_FLAG_ATOMIC : 0) | | |
897 | (acc & IB_ACCESS_REMOTE_WRITE ? MTHCA_MPT_FLAG_REMOTE_WRITE : 0) | | |
898 | (acc & IB_ACCESS_REMOTE_READ ? MTHCA_MPT_FLAG_REMOTE_READ : 0) | | |
899 | (acc & IB_ACCESS_LOCAL_WRITE ? MTHCA_MPT_FLAG_LOCAL_WRITE : 0) | | |
900 | MTHCA_MPT_FLAG_LOCAL_READ; | |
901 | } | |
902 | ||
903 | static struct ib_mr *mthca_get_dma_mr(struct ib_pd *pd, int acc) | |
904 | { | |
905 | struct mthca_mr *mr; | |
906 | int err; | |
907 | ||
908 | mr = kmalloc(sizeof *mr, GFP_KERNEL); | |
909 | if (!mr) | |
910 | return ERR_PTR(-ENOMEM); | |
911 | ||
912 | err = mthca_mr_alloc_notrans(to_mdev(pd->device), | |
913 | to_mpd(pd)->pd_num, | |
914 | convert_access(acc), mr); | |
915 | ||
916 | if (err) { | |
917 | kfree(mr); | |
918 | return ERR_PTR(err); | |
919 | } | |
920 | ||
f7c6a7b5 RD |
921 | mr->umem = NULL; |
922 | ||
1da177e4 LT |
923 | return &mr->ibmr; |
924 | } | |
925 | ||
926 | static struct ib_mr *mthca_reg_phys_mr(struct ib_pd *pd, | |
927 | struct ib_phys_buf *buffer_list, | |
928 | int num_phys_buf, | |
929 | int acc, | |
930 | u64 *iova_start) | |
931 | { | |
932 | struct mthca_mr *mr; | |
933 | u64 *page_list; | |
934 | u64 total_size; | |
0d89fe2c | 935 | unsigned long mask; |
1da177e4 LT |
936 | int shift; |
937 | int npages; | |
938 | int err; | |
939 | int i, j, n; | |
940 | ||
0d89fe2c | 941 | mask = buffer_list[0].addr ^ *iova_start; |
1da177e4 LT |
942 | total_size = 0; |
943 | for (i = 0; i < num_phys_buf; ++i) { | |
6627fa66 MT |
944 | if (i != 0) |
945 | mask |= buffer_list[i].addr; | |
946 | if (i != num_phys_buf - 1) | |
947 | mask |= buffer_list[i].addr + buffer_list[i].size; | |
1da177e4 LT |
948 | |
949 | total_size += buffer_list[i].size; | |
1da177e4 LT |
950 | } |
951 | ||
6627fa66 MT |
952 | if (mask & ~PAGE_MASK) |
953 | return ERR_PTR(-EINVAL); | |
954 | ||
0d89fe2c | 955 | shift = __ffs(mask | 1 << 31); |
1da177e4 LT |
956 | |
957 | buffer_list[0].size += buffer_list[0].addr & ((1ULL << shift) - 1); | |
958 | buffer_list[0].addr &= ~0ull << shift; | |
959 | ||
960 | mr = kmalloc(sizeof *mr, GFP_KERNEL); | |
961 | if (!mr) | |
962 | return ERR_PTR(-ENOMEM); | |
963 | ||
964 | npages = 0; | |
965 | for (i = 0; i < num_phys_buf; ++i) | |
966 | npages += (buffer_list[i].size + (1ULL << shift) - 1) >> shift; | |
967 | ||
968 | if (!npages) | |
969 | return &mr->ibmr; | |
970 | ||
971 | page_list = kmalloc(npages * sizeof *page_list, GFP_KERNEL); | |
972 | if (!page_list) { | |
973 | kfree(mr); | |
974 | return ERR_PTR(-ENOMEM); | |
975 | } | |
976 | ||
977 | n = 0; | |
978 | for (i = 0; i < num_phys_buf; ++i) | |
979 | for (j = 0; | |
980 | j < (buffer_list[i].size + (1ULL << shift) - 1) >> shift; | |
981 | ++j) | |
982 | page_list[n++] = buffer_list[i].addr + ((u64) j << shift); | |
983 | ||
984 | mthca_dbg(to_mdev(pd->device), "Registering memory at %llx (iova %llx) " | |
985 | "in PD %x; shift %d, npages %d.\n", | |
986 | (unsigned long long) buffer_list[0].addr, | |
987 | (unsigned long long) *iova_start, | |
988 | to_mpd(pd)->pd_num, | |
989 | shift, npages); | |
990 | ||
991 | err = mthca_mr_alloc_phys(to_mdev(pd->device), | |
992 | to_mpd(pd)->pd_num, | |
993 | page_list, shift, npages, | |
994 | *iova_start, total_size, | |
995 | convert_access(acc), mr); | |
996 | ||
997 | if (err) { | |
761f9eb8 | 998 | kfree(page_list); |
1da177e4 LT |
999 | kfree(mr); |
1000 | return ERR_PTR(err); | |
1001 | } | |
1002 | ||
1003 | kfree(page_list); | |
f7c6a7b5 RD |
1004 | mr->umem = NULL; |
1005 | ||
1da177e4 LT |
1006 | return &mr->ibmr; |
1007 | } | |
1008 | ||
f7c6a7b5 RD |
1009 | static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, |
1010 | u64 virt, int acc, struct ib_udata *udata) | |
24d4281b RD |
1011 | { |
1012 | struct mthca_dev *dev = to_mdev(pd->device); | |
1013 | struct ib_umem_chunk *chunk; | |
1014 | struct mthca_mr *mr; | |
cb9fbc5c | 1015 | struct mthca_reg_mr ucmd; |
24d4281b RD |
1016 | u64 *pages; |
1017 | int shift, n, len; | |
1018 | int i, j, k; | |
1019 | int err = 0; | |
b2875d4c | 1020 | int write_mtt_size; |
24d4281b | 1021 | |
baaad380 RD |
1022 | if (udata->inlen - sizeof (struct ib_uverbs_cmd_hdr) < sizeof ucmd) { |
1023 | if (!to_mucontext(pd->uobject->context)->reg_mr_warned) { | |
1024 | mthca_warn(dev, "Process '%s' did not pass in MR attrs.\n", | |
1025 | current->comm); | |
1026 | mthca_warn(dev, " Update libmthca to fix this.\n"); | |
1027 | } | |
1028 | ++to_mucontext(pd->uobject->context)->reg_mr_warned; | |
1029 | ucmd.mr_attrs = 0; | |
1030 | } else if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) | |
cb9fbc5c AK |
1031 | return ERR_PTR(-EFAULT); |
1032 | ||
24d4281b RD |
1033 | mr = kmalloc(sizeof *mr, GFP_KERNEL); |
1034 | if (!mr) | |
1035 | return ERR_PTR(-ENOMEM); | |
1036 | ||
cb9fbc5c AK |
1037 | mr->umem = ib_umem_get(pd->uobject->context, start, length, acc, |
1038 | ucmd.mr_attrs & MTHCA_MR_DMASYNC); | |
1039 | ||
f7c6a7b5 RD |
1040 | if (IS_ERR(mr->umem)) { |
1041 | err = PTR_ERR(mr->umem); | |
1042 | goto err; | |
1043 | } | |
1044 | ||
1045 | shift = ffs(mr->umem->page_size) - 1; | |
1046 | ||
24d4281b | 1047 | n = 0; |
f7c6a7b5 | 1048 | list_for_each_entry(chunk, &mr->umem->chunk_list, list) |
24d4281b RD |
1049 | n += chunk->nents; |
1050 | ||
1051 | mr->mtt = mthca_alloc_mtt(dev, n); | |
1052 | if (IS_ERR(mr->mtt)) { | |
1053 | err = PTR_ERR(mr->mtt); | |
f7c6a7b5 | 1054 | goto err_umem; |
24d4281b RD |
1055 | } |
1056 | ||
1057 | pages = (u64 *) __get_free_page(GFP_KERNEL); | |
1058 | if (!pages) { | |
1059 | err = -ENOMEM; | |
1060 | goto err_mtt; | |
1061 | } | |
1062 | ||
1063 | i = n = 0; | |
1064 | ||
b2875d4c MT |
1065 | write_mtt_size = min(mthca_write_mtt_size(dev), (int) (PAGE_SIZE / sizeof *pages)); |
1066 | ||
f7c6a7b5 | 1067 | list_for_each_entry(chunk, &mr->umem->chunk_list, list) |
24d4281b RD |
1068 | for (j = 0; j < chunk->nmap; ++j) { |
1069 | len = sg_dma_len(&chunk->page_list[j]) >> shift; | |
1070 | for (k = 0; k < len; ++k) { | |
1071 | pages[i++] = sg_dma_address(&chunk->page_list[j]) + | |
f7c6a7b5 | 1072 | mr->umem->page_size * k; |
24d4281b | 1073 | /* |
b2875d4c MT |
1074 | * Be friendly to write_mtt and pass it chunks |
1075 | * of appropriate size. | |
24d4281b | 1076 | */ |
b2875d4c MT |
1077 | if (i == write_mtt_size) { |
1078 | err = mthca_write_mtt(dev, mr->mtt, n, pages, i); | |
24d4281b RD |
1079 | if (err) |
1080 | goto mtt_done; | |
1081 | n += i; | |
1082 | i = 0; | |
1083 | } | |
1084 | } | |
1085 | } | |
1086 | ||
1087 | if (i) | |
1088 | err = mthca_write_mtt(dev, mr->mtt, n, pages, i); | |
1089 | mtt_done: | |
1090 | free_page((unsigned long) pages); | |
1091 | if (err) | |
1092 | goto err_mtt; | |
1093 | ||
f7c6a7b5 RD |
1094 | err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, shift, virt, length, |
1095 | convert_access(acc), mr); | |
24d4281b RD |
1096 | |
1097 | if (err) | |
1098 | goto err_mtt; | |
1099 | ||
1100 | return &mr->ibmr; | |
1101 | ||
1102 | err_mtt: | |
1103 | mthca_free_mtt(dev, mr->mtt); | |
1104 | ||
f7c6a7b5 RD |
1105 | err_umem: |
1106 | ib_umem_release(mr->umem); | |
1107 | ||
24d4281b RD |
1108 | err: |
1109 | kfree(mr); | |
1110 | return ERR_PTR(err); | |
1111 | } | |
1112 | ||
1da177e4 LT |
1113 | static int mthca_dereg_mr(struct ib_mr *mr) |
1114 | { | |
e464b2a6 | 1115 | struct mthca_mr *mmr = to_mmr(mr); |
f7c6a7b5 | 1116 | |
e464b2a6 | 1117 | mthca_free_mr(to_mdev(mr->device), mmr); |
f7c6a7b5 RD |
1118 | if (mmr->umem) |
1119 | ib_umem_release(mmr->umem); | |
e464b2a6 | 1120 | kfree(mmr); |
f7c6a7b5 | 1121 | |
1da177e4 LT |
1122 | return 0; |
1123 | } | |
1124 | ||
e0f5fdca MT |
1125 | static struct ib_fmr *mthca_alloc_fmr(struct ib_pd *pd, int mr_access_flags, |
1126 | struct ib_fmr_attr *fmr_attr) | |
1127 | { | |
1128 | struct mthca_fmr *fmr; | |
1129 | int err; | |
1130 | ||
9d79f1b4 | 1131 | fmr = kmalloc(sizeof *fmr, GFP_KERNEL); |
e0f5fdca MT |
1132 | if (!fmr) |
1133 | return ERR_PTR(-ENOMEM); | |
1134 | ||
9d79f1b4 | 1135 | memcpy(&fmr->attr, fmr_attr, sizeof *fmr_attr); |
e0f5fdca MT |
1136 | err = mthca_fmr_alloc(to_mdev(pd->device), to_mpd(pd)->pd_num, |
1137 | convert_access(mr_access_flags), fmr); | |
1138 | ||
1139 | if (err) { | |
1140 | kfree(fmr); | |
1141 | return ERR_PTR(err); | |
1142 | } | |
1143 | ||
1144 | return &fmr->ibmr; | |
1145 | } | |
1146 | ||
1147 | static int mthca_dealloc_fmr(struct ib_fmr *fmr) | |
1148 | { | |
1149 | struct mthca_fmr *mfmr = to_mfmr(fmr); | |
1150 | int err; | |
1151 | ||
1152 | err = mthca_free_fmr(to_mdev(fmr->device), mfmr); | |
1153 | if (err) | |
1154 | return err; | |
1155 | ||
1156 | kfree(mfmr); | |
1157 | return 0; | |
1158 | } | |
1159 | ||
1160 | static int mthca_unmap_fmr(struct list_head *fmr_list) | |
1161 | { | |
1162 | struct ib_fmr *fmr; | |
1163 | int err; | |
1164 | u8 status; | |
1165 | struct mthca_dev *mdev = NULL; | |
1166 | ||
1167 | list_for_each_entry(fmr, fmr_list, list) { | |
1168 | if (mdev && to_mdev(fmr->device) != mdev) | |
1169 | return -EINVAL; | |
1170 | mdev = to_mdev(fmr->device); | |
1171 | } | |
1172 | ||
1173 | if (!mdev) | |
1174 | return 0; | |
1175 | ||
d10ddbf6 | 1176 | if (mthca_is_memfree(mdev)) { |
e0f5fdca MT |
1177 | list_for_each_entry(fmr, fmr_list, list) |
1178 | mthca_arbel_fmr_unmap(mdev, to_mfmr(fmr)); | |
1179 | ||
1180 | wmb(); | |
1181 | } else | |
1182 | list_for_each_entry(fmr, fmr_list, list) | |
1183 | mthca_tavor_fmr_unmap(mdev, to_mfmr(fmr)); | |
1184 | ||
1185 | err = mthca_SYNC_TPT(mdev, &status); | |
1186 | if (err) | |
1187 | return err; | |
1188 | if (status) | |
1189 | return -EINVAL; | |
1190 | return 0; | |
1191 | } | |
1192 | ||
f4e91eb4 TJ |
1193 | static ssize_t show_rev(struct device *device, struct device_attribute *attr, |
1194 | char *buf) | |
1da177e4 | 1195 | { |
f4e91eb4 TJ |
1196 | struct mthca_dev *dev = |
1197 | container_of(device, struct mthca_dev, ib_dev.dev); | |
1da177e4 LT |
1198 | return sprintf(buf, "%x\n", dev->rev_id); |
1199 | } | |
1200 | ||
f4e91eb4 TJ |
1201 | static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr, |
1202 | char *buf) | |
1da177e4 | 1203 | { |
f4e91eb4 TJ |
1204 | struct mthca_dev *dev = |
1205 | container_of(device, struct mthca_dev, ib_dev.dev); | |
87cfe323 | 1206 | return sprintf(buf, "%d.%d.%d\n", (int) (dev->fw_ver >> 32), |
1da177e4 LT |
1207 | (int) (dev->fw_ver >> 16) & 0xffff, |
1208 | (int) dev->fw_ver & 0xffff); | |
1209 | } | |
1210 | ||
f4e91eb4 TJ |
1211 | static ssize_t show_hca(struct device *device, struct device_attribute *attr, |
1212 | char *buf) | |
1da177e4 | 1213 | { |
f4e91eb4 TJ |
1214 | struct mthca_dev *dev = |
1215 | container_of(device, struct mthca_dev, ib_dev.dev); | |
68a3c212 RD |
1216 | switch (dev->pdev->device) { |
1217 | case PCI_DEVICE_ID_MELLANOX_TAVOR: | |
1218 | return sprintf(buf, "MT23108\n"); | |
1219 | case PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT: | |
1220 | return sprintf(buf, "MT25208 (MT23108 compat mode)\n"); | |
1221 | case PCI_DEVICE_ID_MELLANOX_ARBEL: | |
1222 | return sprintf(buf, "MT25208\n"); | |
1223 | case PCI_DEVICE_ID_MELLANOX_SINAI: | |
1224 | case PCI_DEVICE_ID_MELLANOX_SINAI_OLD: | |
1225 | return sprintf(buf, "MT25204\n"); | |
1226 | default: | |
1227 | return sprintf(buf, "unknown\n"); | |
1da177e4 LT |
1228 | } |
1229 | } | |
1230 | ||
f4e91eb4 TJ |
1231 | static ssize_t show_board(struct device *device, struct device_attribute *attr, |
1232 | char *buf) | |
2e8b981c | 1233 | { |
f4e91eb4 TJ |
1234 | struct mthca_dev *dev = |
1235 | container_of(device, struct mthca_dev, ib_dev.dev); | |
2e8b981c MT |
1236 | return sprintf(buf, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id); |
1237 | } | |
1238 | ||
f4e91eb4 TJ |
1239 | static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
1240 | static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); | |
1241 | static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); | |
1242 | static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); | |
1da177e4 | 1243 | |
f4e91eb4 TJ |
1244 | static struct device_attribute *mthca_dev_attributes[] = { |
1245 | &dev_attr_hw_rev, | |
1246 | &dev_attr_fw_ver, | |
1247 | &dev_attr_hca_type, | |
1248 | &dev_attr_board_id | |
1da177e4 LT |
1249 | }; |
1250 | ||
cf311cd4 SH |
1251 | static int mthca_init_node_data(struct mthca_dev *dev) |
1252 | { | |
1253 | struct ib_smp *in_mad = NULL; | |
1254 | struct ib_smp *out_mad = NULL; | |
1255 | int err = -ENOMEM; | |
1256 | u8 status; | |
1257 | ||
1258 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
1259 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
1260 | if (!in_mad || !out_mad) | |
1261 | goto out; | |
1262 | ||
1263 | init_query_mad(in_mad); | |
6dfc3901 RD |
1264 | in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; |
1265 | ||
1266 | err = mthca_MAD_IFC(dev, 1, 1, | |
1267 | 1, NULL, NULL, in_mad, out_mad, | |
1268 | &status); | |
1269 | if (err) | |
1270 | goto out; | |
1271 | if (status) { | |
1272 | err = -EINVAL; | |
1273 | goto out; | |
1274 | } | |
1275 | ||
1276 | memcpy(dev->ib_dev.node_desc, out_mad->data, 64); | |
1277 | ||
cf311cd4 SH |
1278 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; |
1279 | ||
1280 | err = mthca_MAD_IFC(dev, 1, 1, | |
1281 | 1, NULL, NULL, in_mad, out_mad, | |
1282 | &status); | |
1283 | if (err) | |
1284 | goto out; | |
1285 | if (status) { | |
1286 | err = -EINVAL; | |
1287 | goto out; | |
1288 | } | |
1289 | ||
6ccef1de JM |
1290 | if (mthca_is_memfree(dev)) |
1291 | dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32)); | |
cf311cd4 SH |
1292 | memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); |
1293 | ||
1294 | out: | |
1295 | kfree(in_mad); | |
1296 | kfree(out_mad); | |
1297 | return err; | |
1298 | } | |
1299 | ||
1da177e4 LT |
1300 | int mthca_register_device(struct mthca_dev *dev) |
1301 | { | |
1302 | int ret; | |
1303 | int i; | |
1304 | ||
cf311cd4 SH |
1305 | ret = mthca_init_node_data(dev); |
1306 | if (ret) | |
1307 | return ret; | |
1308 | ||
1da177e4 | 1309 | strlcpy(dev->ib_dev.name, "mthca%d", IB_DEVICE_NAME_MAX); |
1cf296b6 RD |
1310 | dev->ib_dev.owner = THIS_MODULE; |
1311 | ||
274c0891 | 1312 | dev->ib_dev.uverbs_abi_ver = MTHCA_UVERBS_ABI_VERSION; |
883a99c7 RD |
1313 | dev->ib_dev.uverbs_cmd_mask = |
1314 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
1315 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
1316 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
1317 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
1318 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
1319 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
1320 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
1321 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
1322 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
4885bf64 | 1323 | (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | |
883a99c7 RD |
1324 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | |
1325 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
8ebe5077 | 1326 | (1ull << IB_USER_VERBS_CMD_QUERY_QP) | |
883a99c7 RD |
1327 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | |
1328 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | |
1329 | (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | | |
5beba532 | 1330 | (1ull << IB_USER_VERBS_CMD_DETACH_MCAST); |
07ebafba | 1331 | dev->ib_dev.node_type = RDMA_NODE_IB_CA; |
1da177e4 | 1332 | dev->ib_dev.phys_port_cnt = dev->limits.num_ports; |
f4fd0b22 | 1333 | dev->ib_dev.num_comp_vectors = 1; |
1da177e4 | 1334 | dev->ib_dev.dma_device = &dev->pdev->dev; |
1da177e4 LT |
1335 | dev->ib_dev.query_device = mthca_query_device; |
1336 | dev->ib_dev.query_port = mthca_query_port; | |
6dfc3901 | 1337 | dev->ib_dev.modify_device = mthca_modify_device; |
1da177e4 LT |
1338 | dev->ib_dev.modify_port = mthca_modify_port; |
1339 | dev->ib_dev.query_pkey = mthca_query_pkey; | |
1340 | dev->ib_dev.query_gid = mthca_query_gid; | |
5e0b537c RD |
1341 | dev->ib_dev.alloc_ucontext = mthca_alloc_ucontext; |
1342 | dev->ib_dev.dealloc_ucontext = mthca_dealloc_ucontext; | |
53b8b3ff | 1343 | dev->ib_dev.mmap = mthca_mmap_uar; |
1da177e4 LT |
1344 | dev->ib_dev.alloc_pd = mthca_alloc_pd; |
1345 | dev->ib_dev.dealloc_pd = mthca_dealloc_pd; | |
1346 | dev->ib_dev.create_ah = mthca_ah_create; | |
1d89b1ae | 1347 | dev->ib_dev.query_ah = mthca_ah_query; |
1da177e4 | 1348 | dev->ib_dev.destroy_ah = mthca_ah_destroy; |
ec34a922 RD |
1349 | |
1350 | if (dev->mthca_flags & MTHCA_FLAG_SRQ) { | |
1351 | dev->ib_dev.create_srq = mthca_create_srq; | |
8ebe5077 EC |
1352 | dev->ib_dev.modify_srq = mthca_modify_srq; |
1353 | dev->ib_dev.query_srq = mthca_query_srq; | |
ec34a922 | 1354 | dev->ib_dev.destroy_srq = mthca_destroy_srq; |
5beba532 RD |
1355 | dev->ib_dev.uverbs_cmd_mask |= |
1356 | (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | | |
1357 | (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | | |
1358 | (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | | |
1359 | (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); | |
ec34a922 RD |
1360 | |
1361 | if (mthca_is_memfree(dev)) | |
1362 | dev->ib_dev.post_srq_recv = mthca_arbel_post_srq_recv; | |
1363 | else | |
1364 | dev->ib_dev.post_srq_recv = mthca_tavor_post_srq_recv; | |
1365 | } | |
1366 | ||
1da177e4 LT |
1367 | dev->ib_dev.create_qp = mthca_create_qp; |
1368 | dev->ib_dev.modify_qp = mthca_modify_qp; | |
8ebe5077 | 1369 | dev->ib_dev.query_qp = mthca_query_qp; |
1da177e4 LT |
1370 | dev->ib_dev.destroy_qp = mthca_destroy_qp; |
1371 | dev->ib_dev.create_cq = mthca_create_cq; | |
4885bf64 | 1372 | dev->ib_dev.resize_cq = mthca_resize_cq; |
1da177e4 LT |
1373 | dev->ib_dev.destroy_cq = mthca_destroy_cq; |
1374 | dev->ib_dev.poll_cq = mthca_poll_cq; | |
1375 | dev->ib_dev.get_dma_mr = mthca_get_dma_mr; | |
1376 | dev->ib_dev.reg_phys_mr = mthca_reg_phys_mr; | |
24d4281b | 1377 | dev->ib_dev.reg_user_mr = mthca_reg_user_mr; |
1da177e4 | 1378 | dev->ib_dev.dereg_mr = mthca_dereg_mr; |
e0f5fdca MT |
1379 | |
1380 | if (dev->mthca_flags & MTHCA_FLAG_FMR) { | |
1381 | dev->ib_dev.alloc_fmr = mthca_alloc_fmr; | |
1382 | dev->ib_dev.unmap_fmr = mthca_unmap_fmr; | |
1383 | dev->ib_dev.dealloc_fmr = mthca_dealloc_fmr; | |
d10ddbf6 | 1384 | if (mthca_is_memfree(dev)) |
e0f5fdca MT |
1385 | dev->ib_dev.map_phys_fmr = mthca_arbel_map_phys_fmr; |
1386 | else | |
1387 | dev->ib_dev.map_phys_fmr = mthca_tavor_map_phys_fmr; | |
1388 | } | |
1389 | ||
1da177e4 LT |
1390 | dev->ib_dev.attach_mcast = mthca_multicast_attach; |
1391 | dev->ib_dev.detach_mcast = mthca_multicast_detach; | |
1392 | dev->ib_dev.process_mad = mthca_process_mad; | |
1393 | ||
d10ddbf6 | 1394 | if (mthca_is_memfree(dev)) { |
1da177e4 LT |
1395 | dev->ib_dev.req_notify_cq = mthca_arbel_arm_cq; |
1396 | dev->ib_dev.post_send = mthca_arbel_post_send; | |
1397 | dev->ib_dev.post_recv = mthca_arbel_post_receive; | |
1398 | } else { | |
1399 | dev->ib_dev.req_notify_cq = mthca_tavor_arm_cq; | |
1400 | dev->ib_dev.post_send = mthca_tavor_post_send; | |
1401 | dev->ib_dev.post_recv = mthca_tavor_post_receive; | |
1402 | } | |
1403 | ||
fd9cfdd1 | 1404 | mutex_init(&dev->cap_mask_mutex); |
1da177e4 LT |
1405 | |
1406 | ret = ib_register_device(&dev->ib_dev); | |
1407 | if (ret) | |
1408 | return ret; | |
1409 | ||
f4e91eb4 TJ |
1410 | for (i = 0; i < ARRAY_SIZE(mthca_dev_attributes); ++i) { |
1411 | ret = device_create_file(&dev->ib_dev.dev, | |
1412 | mthca_dev_attributes[i]); | |
1da177e4 LT |
1413 | if (ret) { |
1414 | ib_unregister_device(&dev->ib_dev); | |
1415 | return ret; | |
1416 | } | |
1417 | } | |
1418 | ||
3d155f8c RD |
1419 | mthca_start_catas_poll(dev); |
1420 | ||
1da177e4 LT |
1421 | return 0; |
1422 | } | |
1423 | ||
1424 | void mthca_unregister_device(struct mthca_dev *dev) | |
1425 | { | |
3d155f8c | 1426 | mthca_stop_catas_poll(dev); |
1da177e4 LT |
1427 | ib_unregister_device(&dev->ib_dev); |
1428 | } |