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225c7b1f RD |
1 | /* |
2 | * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. | |
51a379d0 | 3 | * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. |
225c7b1f RD |
4 | * |
5 | * This software is available to you under a choice of one of two | |
6 | * licenses. You may choose to be licensed under the terms of the GNU | |
7 | * General Public License (GPL) Version 2, available from the file | |
8 | * COPYING in the main directory of this source tree, or the | |
9 | * OpenIB.org BSD license below: | |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or | |
12 | * without modification, are permitted provided that the following | |
13 | * conditions are met: | |
14 | * | |
15 | * - Redistributions of source code must retain the above | |
16 | * copyright notice, this list of conditions and the following | |
17 | * disclaimer. | |
18 | * | |
19 | * - Redistributions in binary form must reproduce the above | |
20 | * copyright notice, this list of conditions and the following | |
21 | * disclaimer in the documentation and/or other materials | |
22 | * provided with the distribution. | |
23 | * | |
24 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
25 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
26 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
27 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
28 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
29 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
30 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
31 | * SOFTWARE. | |
32 | */ | |
33 | ||
34 | #include <linux/module.h> | |
35 | #include <linux/init.h> | |
36 | #include <linux/errno.h> | |
37 | ||
38 | #include <rdma/ib_smi.h> | |
39 | #include <rdma/ib_user_verbs.h> | |
40 | ||
41 | #include <linux/mlx4/driver.h> | |
42 | #include <linux/mlx4/cmd.h> | |
43 | ||
44 | #include "mlx4_ib.h" | |
45 | #include "user.h" | |
46 | ||
47 | #define DRV_NAME "mlx4_ib" | |
068c4ea1 JM |
48 | #define DRV_VERSION "1.0" |
49 | #define DRV_RELDATE "April 4, 2008" | |
225c7b1f RD |
50 | |
51 | MODULE_AUTHOR("Roland Dreier"); | |
52 | MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver"); | |
53 | MODULE_LICENSE("Dual BSD/GPL"); | |
54 | MODULE_VERSION(DRV_VERSION); | |
55 | ||
68f3948d | 56 | static const char mlx4_ib_version[] = |
225c7b1f RD |
57 | DRV_NAME ": Mellanox ConnectX InfiniBand driver v" |
58 | DRV_VERSION " (" DRV_RELDATE ")\n"; | |
59 | ||
60 | static void init_query_mad(struct ib_smp *mad) | |
61 | { | |
62 | mad->base_version = 1; | |
63 | mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; | |
64 | mad->class_version = 1; | |
65 | mad->method = IB_MGMT_METHOD_GET; | |
66 | } | |
67 | ||
68 | static int mlx4_ib_query_device(struct ib_device *ibdev, | |
69 | struct ib_device_attr *props) | |
70 | { | |
71 | struct mlx4_ib_dev *dev = to_mdev(ibdev); | |
72 | struct ib_smp *in_mad = NULL; | |
73 | struct ib_smp *out_mad = NULL; | |
74 | int err = -ENOMEM; | |
75 | ||
76 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
77 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
78 | if (!in_mad || !out_mad) | |
79 | goto out; | |
80 | ||
81 | init_query_mad(in_mad); | |
82 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; | |
83 | ||
84 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad, out_mad); | |
85 | if (err) | |
86 | goto out; | |
87 | ||
88 | memset(props, 0, sizeof *props); | |
89 | ||
90 | props->fw_ver = dev->dev->caps.fw_ver; | |
91 | props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | | |
92 | IB_DEVICE_PORT_ACTIVE_EVENT | | |
93 | IB_DEVICE_SYS_IMAGE_GUID | | |
521e575b RL |
94 | IB_DEVICE_RC_RNR_NAK_GEN | |
95 | IB_DEVICE_BLOCK_MULTICAST_LOOPBACK; | |
225c7b1f RD |
96 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR) |
97 | props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; | |
98 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR) | |
99 | props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; | |
100 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM) | |
101 | props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; | |
102 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT) | |
103 | props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; | |
8ff095ec EC |
104 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM) |
105 | props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM; | |
b832be1e EC |
106 | if (dev->dev->caps.max_gso_sz) |
107 | props->device_cap_flags |= IB_DEVICE_UD_TSO; | |
95d04f07 RD |
108 | if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY) |
109 | props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY; | |
110 | if ((dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_LOCAL_INV) && | |
111 | (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_REMOTE_INV) && | |
112 | (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_FAST_REG_WR)) | |
113 | props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; | |
225c7b1f RD |
114 | |
115 | props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & | |
116 | 0xffffff; | |
117 | props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30)); | |
118 | props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); | |
119 | memcpy(&props->sys_image_guid, out_mad->data + 4, 8); | |
120 | ||
121 | props->max_mr_size = ~0ull; | |
122 | props->page_size_cap = dev->dev->caps.page_size_cap; | |
123 | props->max_qp = dev->dev->caps.num_qps - dev->dev->caps.reserved_qps; | |
124 | props->max_qp_wr = dev->dev->caps.max_wqes; | |
125 | props->max_sge = min(dev->dev->caps.max_sq_sg, | |
126 | dev->dev->caps.max_rq_sg); | |
127 | props->max_cq = dev->dev->caps.num_cqs - dev->dev->caps.reserved_cqs; | |
128 | props->max_cqe = dev->dev->caps.max_cqes; | |
129 | props->max_mr = dev->dev->caps.num_mpts - dev->dev->caps.reserved_mrws; | |
130 | props->max_pd = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds; | |
131 | props->max_qp_rd_atom = dev->dev->caps.max_qp_dest_rdma; | |
132 | props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma; | |
133 | props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; | |
134 | props->max_srq = dev->dev->caps.num_srqs - dev->dev->caps.reserved_srqs; | |
c8681f14 | 135 | props->max_srq_wr = dev->dev->caps.max_srq_wqes - 1; |
225c7b1f | 136 | props->max_srq_sge = dev->dev->caps.max_srq_sge; |
95d04f07 | 137 | props->max_fast_reg_page_list_len = PAGE_SIZE / sizeof (u64); |
225c7b1f RD |
138 | props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay; |
139 | props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ? | |
140 | IB_ATOMIC_HCA : IB_ATOMIC_NONE; | |
5ae2a7a8 | 141 | props->max_pkeys = dev->dev->caps.pkey_table_len[1]; |
225c7b1f RD |
142 | props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms; |
143 | props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm; | |
144 | props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * | |
145 | props->max_mcast_grp; | |
146 | props->max_map_per_fmr = (1 << (32 - ilog2(dev->dev->caps.num_mpts))) - 1; | |
147 | ||
148 | out: | |
149 | kfree(in_mad); | |
150 | kfree(out_mad); | |
151 | ||
152 | return err; | |
153 | } | |
154 | ||
155 | static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port, | |
156 | struct ib_port_attr *props) | |
157 | { | |
158 | struct ib_smp *in_mad = NULL; | |
159 | struct ib_smp *out_mad = NULL; | |
160 | int err = -ENOMEM; | |
161 | ||
162 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
163 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
164 | if (!in_mad || !out_mad) | |
165 | goto out; | |
166 | ||
167 | memset(props, 0, sizeof *props); | |
168 | ||
169 | init_query_mad(in_mad); | |
170 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; | |
171 | in_mad->attr_mod = cpu_to_be32(port); | |
172 | ||
173 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); | |
174 | if (err) | |
175 | goto out; | |
176 | ||
177 | props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); | |
178 | props->lmc = out_mad->data[34] & 0x7; | |
179 | props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); | |
180 | props->sm_sl = out_mad->data[36] & 0xf; | |
181 | props->state = out_mad->data[32] & 0xf; | |
182 | props->phys_state = out_mad->data[33] >> 4; | |
183 | props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); | |
5ae2a7a8 | 184 | props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port]; |
149983af | 185 | props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz; |
5ae2a7a8 | 186 | props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port]; |
225c7b1f RD |
187 | props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); |
188 | props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); | |
189 | props->active_width = out_mad->data[31] & 0xf; | |
190 | props->active_speed = out_mad->data[35] >> 4; | |
191 | props->max_mtu = out_mad->data[41] & 0xf; | |
192 | props->active_mtu = out_mad->data[36] >> 4; | |
193 | props->subnet_timeout = out_mad->data[51] & 0x1f; | |
194 | props->max_vl_num = out_mad->data[37] >> 4; | |
195 | props->init_type_reply = out_mad->data[41] >> 4; | |
196 | ||
197 | out: | |
198 | kfree(in_mad); | |
199 | kfree(out_mad); | |
200 | ||
201 | return err; | |
202 | } | |
203 | ||
204 | static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index, | |
205 | union ib_gid *gid) | |
206 | { | |
207 | struct ib_smp *in_mad = NULL; | |
208 | struct ib_smp *out_mad = NULL; | |
209 | int err = -ENOMEM; | |
210 | ||
211 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
212 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
213 | if (!in_mad || !out_mad) | |
214 | goto out; | |
215 | ||
216 | init_query_mad(in_mad); | |
217 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; | |
218 | in_mad->attr_mod = cpu_to_be32(port); | |
219 | ||
220 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); | |
221 | if (err) | |
222 | goto out; | |
223 | ||
224 | memcpy(gid->raw, out_mad->data + 8, 8); | |
225 | ||
226 | init_query_mad(in_mad); | |
227 | in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; | |
228 | in_mad->attr_mod = cpu_to_be32(index / 8); | |
229 | ||
230 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); | |
231 | if (err) | |
232 | goto out; | |
233 | ||
234 | memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); | |
235 | ||
236 | out: | |
237 | kfree(in_mad); | |
238 | kfree(out_mad); | |
239 | return err; | |
240 | } | |
241 | ||
242 | static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, | |
243 | u16 *pkey) | |
244 | { | |
245 | struct ib_smp *in_mad = NULL; | |
246 | struct ib_smp *out_mad = NULL; | |
247 | int err = -ENOMEM; | |
248 | ||
249 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
250 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
251 | if (!in_mad || !out_mad) | |
252 | goto out; | |
253 | ||
254 | init_query_mad(in_mad); | |
255 | in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; | |
256 | in_mad->attr_mod = cpu_to_be32(index / 32); | |
257 | ||
258 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); | |
259 | if (err) | |
260 | goto out; | |
261 | ||
262 | *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); | |
263 | ||
264 | out: | |
265 | kfree(in_mad); | |
266 | kfree(out_mad); | |
267 | return err; | |
268 | } | |
269 | ||
270 | static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask, | |
271 | struct ib_device_modify *props) | |
272 | { | |
273 | if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) | |
274 | return -EOPNOTSUPP; | |
275 | ||
276 | if (mask & IB_DEVICE_MODIFY_NODE_DESC) { | |
277 | spin_lock(&to_mdev(ibdev)->sm_lock); | |
278 | memcpy(ibdev->node_desc, props->node_desc, 64); | |
279 | spin_unlock(&to_mdev(ibdev)->sm_lock); | |
280 | } | |
281 | ||
282 | return 0; | |
283 | } | |
284 | ||
285 | static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols, | |
286 | u32 cap_mask) | |
287 | { | |
288 | struct mlx4_cmd_mailbox *mailbox; | |
289 | int err; | |
290 | ||
291 | mailbox = mlx4_alloc_cmd_mailbox(dev->dev); | |
292 | if (IS_ERR(mailbox)) | |
293 | return PTR_ERR(mailbox); | |
294 | ||
295 | memset(mailbox->buf, 0, 256); | |
5ae2a7a8 RD |
296 | |
297 | if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) { | |
298 | *(u8 *) mailbox->buf = !!reset_qkey_viols << 6; | |
299 | ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask); | |
300 | } else { | |
301 | ((u8 *) mailbox->buf)[3] = !!reset_qkey_viols; | |
302 | ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask); | |
303 | } | |
225c7b1f RD |
304 | |
305 | err = mlx4_cmd(dev->dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT, | |
306 | MLX4_CMD_TIME_CLASS_B); | |
307 | ||
308 | mlx4_free_cmd_mailbox(dev->dev, mailbox); | |
309 | return err; | |
310 | } | |
311 | ||
312 | static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask, | |
313 | struct ib_port_modify *props) | |
314 | { | |
315 | struct ib_port_attr attr; | |
316 | u32 cap_mask; | |
317 | int err; | |
318 | ||
319 | mutex_lock(&to_mdev(ibdev)->cap_mask_mutex); | |
320 | ||
321 | err = mlx4_ib_query_port(ibdev, port, &attr); | |
322 | if (err) | |
323 | goto out; | |
324 | ||
325 | cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & | |
326 | ~props->clr_port_cap_mask; | |
327 | ||
328 | err = mlx4_SET_PORT(to_mdev(ibdev), port, | |
329 | !!(mask & IB_PORT_RESET_QKEY_CNTR), | |
330 | cap_mask); | |
331 | ||
332 | out: | |
333 | mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); | |
334 | return err; | |
335 | } | |
336 | ||
337 | static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev, | |
338 | struct ib_udata *udata) | |
339 | { | |
340 | struct mlx4_ib_dev *dev = to_mdev(ibdev); | |
341 | struct mlx4_ib_ucontext *context; | |
342 | struct mlx4_ib_alloc_ucontext_resp resp; | |
343 | int err; | |
344 | ||
345 | resp.qp_tab_size = dev->dev->caps.num_qps; | |
346 | resp.bf_reg_size = dev->dev->caps.bf_reg_size; | |
347 | resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page; | |
348 | ||
349 | context = kmalloc(sizeof *context, GFP_KERNEL); | |
350 | if (!context) | |
351 | return ERR_PTR(-ENOMEM); | |
352 | ||
353 | err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar); | |
354 | if (err) { | |
355 | kfree(context); | |
356 | return ERR_PTR(err); | |
357 | } | |
358 | ||
359 | INIT_LIST_HEAD(&context->db_page_list); | |
360 | mutex_init(&context->db_page_mutex); | |
361 | ||
362 | err = ib_copy_to_udata(udata, &resp, sizeof resp); | |
363 | if (err) { | |
364 | mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar); | |
365 | kfree(context); | |
366 | return ERR_PTR(-EFAULT); | |
367 | } | |
368 | ||
369 | return &context->ibucontext; | |
370 | } | |
371 | ||
372 | static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext) | |
373 | { | |
374 | struct mlx4_ib_ucontext *context = to_mucontext(ibcontext); | |
375 | ||
376 | mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar); | |
377 | kfree(context); | |
378 | ||
379 | return 0; | |
380 | } | |
381 | ||
382 | static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) | |
383 | { | |
384 | struct mlx4_ib_dev *dev = to_mdev(context->device); | |
385 | ||
386 | if (vma->vm_end - vma->vm_start != PAGE_SIZE) | |
387 | return -EINVAL; | |
388 | ||
389 | if (vma->vm_pgoff == 0) { | |
390 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | |
391 | ||
392 | if (io_remap_pfn_range(vma, vma->vm_start, | |
393 | to_mucontext(context)->uar.pfn, | |
394 | PAGE_SIZE, vma->vm_page_prot)) | |
395 | return -EAGAIN; | |
396 | } else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) { | |
397 | /* FIXME want pgprot_writecombine() for BlueFlame pages */ | |
398 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | |
399 | ||
400 | if (io_remap_pfn_range(vma, vma->vm_start, | |
401 | to_mucontext(context)->uar.pfn + | |
402 | dev->dev->caps.num_uars, | |
403 | PAGE_SIZE, vma->vm_page_prot)) | |
404 | return -EAGAIN; | |
405 | } else | |
406 | return -EINVAL; | |
407 | ||
408 | return 0; | |
409 | } | |
410 | ||
411 | static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev, | |
412 | struct ib_ucontext *context, | |
413 | struct ib_udata *udata) | |
414 | { | |
415 | struct mlx4_ib_pd *pd; | |
416 | int err; | |
417 | ||
418 | pd = kmalloc(sizeof *pd, GFP_KERNEL); | |
419 | if (!pd) | |
420 | return ERR_PTR(-ENOMEM); | |
421 | ||
422 | err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn); | |
423 | if (err) { | |
424 | kfree(pd); | |
425 | return ERR_PTR(err); | |
426 | } | |
427 | ||
428 | if (context) | |
429 | if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) { | |
430 | mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn); | |
431 | kfree(pd); | |
432 | return ERR_PTR(-EFAULT); | |
433 | } | |
434 | ||
435 | return &pd->ibpd; | |
436 | } | |
437 | ||
438 | static int mlx4_ib_dealloc_pd(struct ib_pd *pd) | |
439 | { | |
440 | mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn); | |
441 | kfree(pd); | |
442 | ||
443 | return 0; | |
444 | } | |
445 | ||
446 | static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
447 | { | |
448 | return mlx4_multicast_attach(to_mdev(ibqp->device)->dev, | |
521e575b RL |
449 | &to_mqp(ibqp)->mqp, gid->raw, |
450 | !!(to_mqp(ibqp)->flags & | |
451 | MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK)); | |
225c7b1f RD |
452 | } |
453 | ||
454 | static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
455 | { | |
456 | return mlx4_multicast_detach(to_mdev(ibqp->device)->dev, | |
457 | &to_mqp(ibqp)->mqp, gid->raw); | |
458 | } | |
459 | ||
460 | static int init_node_data(struct mlx4_ib_dev *dev) | |
461 | { | |
462 | struct ib_smp *in_mad = NULL; | |
463 | struct ib_smp *out_mad = NULL; | |
464 | int err = -ENOMEM; | |
465 | ||
466 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
467 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
468 | if (!in_mad || !out_mad) | |
469 | goto out; | |
470 | ||
471 | init_query_mad(in_mad); | |
472 | in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; | |
473 | ||
474 | err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); | |
475 | if (err) | |
476 | goto out; | |
477 | ||
478 | memcpy(dev->ib_dev.node_desc, out_mad->data, 64); | |
479 | ||
480 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; | |
481 | ||
482 | err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); | |
483 | if (err) | |
484 | goto out; | |
485 | ||
893da759 | 486 | dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32)); |
225c7b1f RD |
487 | memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); |
488 | ||
489 | out: | |
490 | kfree(in_mad); | |
491 | kfree(out_mad); | |
492 | return err; | |
493 | } | |
494 | ||
f4e91eb4 TJ |
495 | static ssize_t show_hca(struct device *device, struct device_attribute *attr, |
496 | char *buf) | |
cd9281d8 | 497 | { |
f4e91eb4 TJ |
498 | struct mlx4_ib_dev *dev = |
499 | container_of(device, struct mlx4_ib_dev, ib_dev.dev); | |
cd9281d8 JM |
500 | return sprintf(buf, "MT%d\n", dev->dev->pdev->device); |
501 | } | |
502 | ||
f4e91eb4 TJ |
503 | static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr, |
504 | char *buf) | |
cd9281d8 | 505 | { |
f4e91eb4 TJ |
506 | struct mlx4_ib_dev *dev = |
507 | container_of(device, struct mlx4_ib_dev, ib_dev.dev); | |
cd9281d8 JM |
508 | return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32), |
509 | (int) (dev->dev->caps.fw_ver >> 16) & 0xffff, | |
510 | (int) dev->dev->caps.fw_ver & 0xffff); | |
511 | } | |
512 | ||
f4e91eb4 TJ |
513 | static ssize_t show_rev(struct device *device, struct device_attribute *attr, |
514 | char *buf) | |
cd9281d8 | 515 | { |
f4e91eb4 TJ |
516 | struct mlx4_ib_dev *dev = |
517 | container_of(device, struct mlx4_ib_dev, ib_dev.dev); | |
cd9281d8 JM |
518 | return sprintf(buf, "%x\n", dev->dev->rev_id); |
519 | } | |
520 | ||
f4e91eb4 TJ |
521 | static ssize_t show_board(struct device *device, struct device_attribute *attr, |
522 | char *buf) | |
cd9281d8 | 523 | { |
f4e91eb4 TJ |
524 | struct mlx4_ib_dev *dev = |
525 | container_of(device, struct mlx4_ib_dev, ib_dev.dev); | |
526 | return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN, | |
527 | dev->dev->board_id); | |
cd9281d8 JM |
528 | } |
529 | ||
f4e91eb4 TJ |
530 | static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
531 | static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); | |
532 | static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); | |
533 | static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); | |
cd9281d8 | 534 | |
f4e91eb4 TJ |
535 | static struct device_attribute *mlx4_class_attributes[] = { |
536 | &dev_attr_hw_rev, | |
537 | &dev_attr_fw_ver, | |
538 | &dev_attr_hca_type, | |
539 | &dev_attr_board_id | |
cd9281d8 JM |
540 | }; |
541 | ||
225c7b1f RD |
542 | static void *mlx4_ib_add(struct mlx4_dev *dev) |
543 | { | |
68f3948d | 544 | static int mlx4_ib_version_printed; |
225c7b1f | 545 | struct mlx4_ib_dev *ibdev; |
cd9281d8 | 546 | int i; |
225c7b1f | 547 | |
68f3948d RD |
548 | |
549 | if (!mlx4_ib_version_printed) { | |
550 | printk(KERN_INFO "%s", mlx4_ib_version); | |
551 | ++mlx4_ib_version_printed; | |
552 | } | |
553 | ||
225c7b1f RD |
554 | ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev); |
555 | if (!ibdev) { | |
556 | dev_err(&dev->pdev->dev, "Device struct alloc failed\n"); | |
557 | return NULL; | |
558 | } | |
559 | ||
560 | if (mlx4_pd_alloc(dev, &ibdev->priv_pdn)) | |
561 | goto err_dealloc; | |
562 | ||
563 | if (mlx4_uar_alloc(dev, &ibdev->priv_uar)) | |
564 | goto err_pd; | |
565 | ||
566 | ibdev->uar_map = ioremap(ibdev->priv_uar.pfn << PAGE_SHIFT, PAGE_SIZE); | |
567 | if (!ibdev->uar_map) | |
568 | goto err_uar; | |
26c6bc7b | 569 | MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock); |
225c7b1f | 570 | |
225c7b1f RD |
571 | ibdev->dev = dev; |
572 | ||
573 | strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX); | |
574 | ibdev->ib_dev.owner = THIS_MODULE; | |
575 | ibdev->ib_dev.node_type = RDMA_NODE_IB_CA; | |
95d04f07 | 576 | ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey; |
225c7b1f RD |
577 | ibdev->ib_dev.phys_port_cnt = dev->caps.num_ports; |
578 | ibdev->ib_dev.num_comp_vectors = 1; | |
579 | ibdev->ib_dev.dma_device = &dev->pdev->dev; | |
580 | ||
581 | ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION; | |
582 | ibdev->ib_dev.uverbs_cmd_mask = | |
583 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
584 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
585 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
586 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
587 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
588 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
589 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
590 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
591 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
bbf8eed1 | 592 | (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | |
225c7b1f RD |
593 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | |
594 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
595 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
6a775e2b | 596 | (1ull << IB_USER_VERBS_CMD_QUERY_QP) | |
225c7b1f RD |
597 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | |
598 | (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | | |
599 | (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) | | |
600 | (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | | |
601 | (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | | |
65541cb7 | 602 | (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | |
225c7b1f RD |
603 | (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); |
604 | ||
605 | ibdev->ib_dev.query_device = mlx4_ib_query_device; | |
606 | ibdev->ib_dev.query_port = mlx4_ib_query_port; | |
607 | ibdev->ib_dev.query_gid = mlx4_ib_query_gid; | |
608 | ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey; | |
609 | ibdev->ib_dev.modify_device = mlx4_ib_modify_device; | |
610 | ibdev->ib_dev.modify_port = mlx4_ib_modify_port; | |
611 | ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext; | |
612 | ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext; | |
613 | ibdev->ib_dev.mmap = mlx4_ib_mmap; | |
614 | ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd; | |
615 | ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd; | |
616 | ibdev->ib_dev.create_ah = mlx4_ib_create_ah; | |
617 | ibdev->ib_dev.query_ah = mlx4_ib_query_ah; | |
618 | ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah; | |
619 | ibdev->ib_dev.create_srq = mlx4_ib_create_srq; | |
620 | ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq; | |
65541cb7 | 621 | ibdev->ib_dev.query_srq = mlx4_ib_query_srq; |
225c7b1f RD |
622 | ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq; |
623 | ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv; | |
624 | ibdev->ib_dev.create_qp = mlx4_ib_create_qp; | |
625 | ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp; | |
6a775e2b | 626 | ibdev->ib_dev.query_qp = mlx4_ib_query_qp; |
225c7b1f RD |
627 | ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp; |
628 | ibdev->ib_dev.post_send = mlx4_ib_post_send; | |
629 | ibdev->ib_dev.post_recv = mlx4_ib_post_recv; | |
630 | ibdev->ib_dev.create_cq = mlx4_ib_create_cq; | |
3fdcb97f | 631 | ibdev->ib_dev.modify_cq = mlx4_ib_modify_cq; |
bbf8eed1 | 632 | ibdev->ib_dev.resize_cq = mlx4_ib_resize_cq; |
225c7b1f RD |
633 | ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq; |
634 | ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq; | |
635 | ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq; | |
636 | ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr; | |
637 | ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr; | |
638 | ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr; | |
95d04f07 RD |
639 | ibdev->ib_dev.alloc_fast_reg_mr = mlx4_ib_alloc_fast_reg_mr; |
640 | ibdev->ib_dev.alloc_fast_reg_page_list = mlx4_ib_alloc_fast_reg_page_list; | |
641 | ibdev->ib_dev.free_fast_reg_page_list = mlx4_ib_free_fast_reg_page_list; | |
225c7b1f RD |
642 | ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach; |
643 | ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach; | |
644 | ibdev->ib_dev.process_mad = mlx4_ib_process_mad; | |
645 | ||
8ad11fb6 JM |
646 | ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc; |
647 | ibdev->ib_dev.map_phys_fmr = mlx4_ib_map_phys_fmr; | |
648 | ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr; | |
649 | ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc; | |
650 | ||
225c7b1f RD |
651 | if (init_node_data(ibdev)) |
652 | goto err_map; | |
653 | ||
654 | spin_lock_init(&ibdev->sm_lock); | |
655 | mutex_init(&ibdev->cap_mask_mutex); | |
656 | ||
657 | if (ib_register_device(&ibdev->ib_dev)) | |
658 | goto err_map; | |
659 | ||
660 | if (mlx4_ib_mad_init(ibdev)) | |
661 | goto err_reg; | |
662 | ||
cd9281d8 | 663 | for (i = 0; i < ARRAY_SIZE(mlx4_class_attributes); ++i) { |
f4e91eb4 TJ |
664 | if (device_create_file(&ibdev->ib_dev.dev, |
665 | mlx4_class_attributes[i])) | |
cd9281d8 JM |
666 | goto err_reg; |
667 | } | |
668 | ||
225c7b1f RD |
669 | return ibdev; |
670 | ||
671 | err_reg: | |
672 | ib_unregister_device(&ibdev->ib_dev); | |
673 | ||
674 | err_map: | |
675 | iounmap(ibdev->uar_map); | |
676 | ||
677 | err_uar: | |
678 | mlx4_uar_free(dev, &ibdev->priv_uar); | |
679 | ||
680 | err_pd: | |
681 | mlx4_pd_free(dev, ibdev->priv_pdn); | |
682 | ||
683 | err_dealloc: | |
684 | ib_dealloc_device(&ibdev->ib_dev); | |
685 | ||
686 | return NULL; | |
687 | } | |
688 | ||
689 | static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr) | |
690 | { | |
691 | struct mlx4_ib_dev *ibdev = ibdev_ptr; | |
692 | int p; | |
693 | ||
694 | for (p = 1; p <= dev->caps.num_ports; ++p) | |
695 | mlx4_CLOSE_PORT(dev, p); | |
696 | ||
697 | mlx4_ib_mad_cleanup(ibdev); | |
698 | ib_unregister_device(&ibdev->ib_dev); | |
699 | iounmap(ibdev->uar_map); | |
700 | mlx4_uar_free(dev, &ibdev->priv_uar); | |
701 | mlx4_pd_free(dev, ibdev->priv_pdn); | |
702 | ib_dealloc_device(&ibdev->ib_dev); | |
703 | } | |
704 | ||
705 | static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr, | |
37608eea | 706 | enum mlx4_dev_event event, int port) |
225c7b1f RD |
707 | { |
708 | struct ib_event ibev; | |
709 | ||
710 | switch (event) { | |
37608eea RD |
711 | case MLX4_DEV_EVENT_PORT_UP: |
712 | ibev.event = IB_EVENT_PORT_ACTIVE; | |
225c7b1f RD |
713 | break; |
714 | ||
37608eea RD |
715 | case MLX4_DEV_EVENT_PORT_DOWN: |
716 | ibev.event = IB_EVENT_PORT_ERR; | |
717 | break; | |
718 | ||
719 | case MLX4_DEV_EVENT_CATASTROPHIC_ERROR: | |
225c7b1f RD |
720 | ibev.event = IB_EVENT_DEVICE_FATAL; |
721 | break; | |
722 | ||
723 | default: | |
724 | return; | |
725 | } | |
726 | ||
727 | ibev.device = ibdev_ptr; | |
728 | ibev.element.port_num = port; | |
729 | ||
730 | ib_dispatch_event(&ibev); | |
731 | } | |
732 | ||
733 | static struct mlx4_interface mlx4_ib_interface = { | |
734 | .add = mlx4_ib_add, | |
735 | .remove = mlx4_ib_remove, | |
736 | .event = mlx4_ib_event | |
737 | }; | |
738 | ||
739 | static int __init mlx4_ib_init(void) | |
740 | { | |
741 | return mlx4_register_interface(&mlx4_ib_interface); | |
742 | } | |
743 | ||
744 | static void __exit mlx4_ib_cleanup(void) | |
745 | { | |
746 | mlx4_unregister_interface(&mlx4_ib_interface); | |
747 | } | |
748 | ||
749 | module_init(mlx4_ib_init); | |
750 | module_exit(mlx4_ib_cleanup); |