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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> | |
5a0e3ad6 | 36 | #include <linux/slab.h> |
225c7b1f RD |
37 | #include <linux/errno.h> |
38 | ||
39 | #include <rdma/ib_smi.h> | |
40 | #include <rdma/ib_user_verbs.h> | |
41 | ||
42 | #include <linux/mlx4/driver.h> | |
43 | #include <linux/mlx4/cmd.h> | |
44 | ||
45 | #include "mlx4_ib.h" | |
46 | #include "user.h" | |
47 | ||
48 | #define DRV_NAME "mlx4_ib" | |
068c4ea1 JM |
49 | #define DRV_VERSION "1.0" |
50 | #define DRV_RELDATE "April 4, 2008" | |
225c7b1f RD |
51 | |
52 | MODULE_AUTHOR("Roland Dreier"); | |
53 | MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver"); | |
54 | MODULE_LICENSE("Dual BSD/GPL"); | |
55 | MODULE_VERSION(DRV_VERSION); | |
56 | ||
68f3948d | 57 | static const char mlx4_ib_version[] = |
225c7b1f RD |
58 | DRV_NAME ": Mellanox ConnectX InfiniBand driver v" |
59 | DRV_VERSION " (" DRV_RELDATE ")\n"; | |
60 | ||
61 | static void init_query_mad(struct ib_smp *mad) | |
62 | { | |
63 | mad->base_version = 1; | |
64 | mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; | |
65 | mad->class_version = 1; | |
66 | mad->method = IB_MGMT_METHOD_GET; | |
67 | } | |
68 | ||
69 | static int mlx4_ib_query_device(struct ib_device *ibdev, | |
70 | struct ib_device_attr *props) | |
71 | { | |
72 | struct mlx4_ib_dev *dev = to_mdev(ibdev); | |
73 | struct ib_smp *in_mad = NULL; | |
74 | struct ib_smp *out_mad = NULL; | |
75 | int err = -ENOMEM; | |
76 | ||
77 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
78 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
79 | if (!in_mad || !out_mad) | |
80 | goto out; | |
81 | ||
82 | init_query_mad(in_mad); | |
83 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; | |
84 | ||
85 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad, out_mad); | |
86 | if (err) | |
87 | goto out; | |
88 | ||
89 | memset(props, 0, sizeof *props); | |
90 | ||
91 | props->fw_ver = dev->dev->caps.fw_ver; | |
92 | props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | | |
93 | IB_DEVICE_PORT_ACTIVE_EVENT | | |
94 | IB_DEVICE_SYS_IMAGE_GUID | | |
521e575b RL |
95 | IB_DEVICE_RC_RNR_NAK_GEN | |
96 | IB_DEVICE_BLOCK_MULTICAST_LOOPBACK; | |
225c7b1f RD |
97 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR) |
98 | props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; | |
99 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR) | |
100 | props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; | |
101 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM) | |
102 | props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; | |
103 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT) | |
104 | props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; | |
8ff095ec EC |
105 | if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM) |
106 | props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM; | |
417608c2 | 107 | if (dev->dev->caps.max_gso_sz && dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BLH) |
b832be1e | 108 | props->device_cap_flags |= IB_DEVICE_UD_TSO; |
95d04f07 RD |
109 | if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY) |
110 | props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY; | |
111 | if ((dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_LOCAL_INV) && | |
112 | (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_REMOTE_INV) && | |
113 | (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_FAST_REG_WR)) | |
114 | props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; | |
225c7b1f RD |
115 | |
116 | props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & | |
117 | 0xffffff; | |
118 | props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30)); | |
119 | props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); | |
120 | memcpy(&props->sys_image_guid, out_mad->data + 4, 8); | |
121 | ||
122 | props->max_mr_size = ~0ull; | |
123 | props->page_size_cap = dev->dev->caps.page_size_cap; | |
124 | props->max_qp = dev->dev->caps.num_qps - dev->dev->caps.reserved_qps; | |
125 | props->max_qp_wr = dev->dev->caps.max_wqes; | |
126 | props->max_sge = min(dev->dev->caps.max_sq_sg, | |
127 | dev->dev->caps.max_rq_sg); | |
128 | props->max_cq = dev->dev->caps.num_cqs - dev->dev->caps.reserved_cqs; | |
129 | props->max_cqe = dev->dev->caps.max_cqes; | |
130 | props->max_mr = dev->dev->caps.num_mpts - dev->dev->caps.reserved_mrws; | |
131 | props->max_pd = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds; | |
132 | props->max_qp_rd_atom = dev->dev->caps.max_qp_dest_rdma; | |
133 | props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma; | |
134 | props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; | |
135 | props->max_srq = dev->dev->caps.num_srqs - dev->dev->caps.reserved_srqs; | |
c8681f14 | 136 | props->max_srq_wr = dev->dev->caps.max_srq_wqes - 1; |
225c7b1f | 137 | props->max_srq_sge = dev->dev->caps.max_srq_sge; |
95d04f07 | 138 | props->max_fast_reg_page_list_len = PAGE_SIZE / sizeof (u64); |
225c7b1f RD |
139 | props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay; |
140 | props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ? | |
141 | IB_ATOMIC_HCA : IB_ATOMIC_NONE; | |
6fa8f719 | 142 | props->masked_atomic_cap = IB_ATOMIC_HCA; |
5ae2a7a8 | 143 | props->max_pkeys = dev->dev->caps.pkey_table_len[1]; |
225c7b1f RD |
144 | props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms; |
145 | props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm; | |
146 | props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * | |
147 | props->max_mcast_grp; | |
148 | props->max_map_per_fmr = (1 << (32 - ilog2(dev->dev->caps.num_mpts))) - 1; | |
149 | ||
150 | out: | |
151 | kfree(in_mad); | |
152 | kfree(out_mad); | |
153 | ||
154 | return err; | |
155 | } | |
156 | ||
157 | static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port, | |
158 | struct ib_port_attr *props) | |
159 | { | |
160 | struct ib_smp *in_mad = NULL; | |
161 | struct ib_smp *out_mad = NULL; | |
162 | int err = -ENOMEM; | |
163 | ||
164 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
165 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
166 | if (!in_mad || !out_mad) | |
167 | goto out; | |
168 | ||
169 | memset(props, 0, sizeof *props); | |
170 | ||
171 | init_query_mad(in_mad); | |
172 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; | |
173 | in_mad->attr_mod = cpu_to_be32(port); | |
174 | ||
175 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); | |
176 | if (err) | |
177 | goto out; | |
178 | ||
179 | props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); | |
180 | props->lmc = out_mad->data[34] & 0x7; | |
181 | props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); | |
182 | props->sm_sl = out_mad->data[36] & 0xf; | |
183 | props->state = out_mad->data[32] & 0xf; | |
184 | props->phys_state = out_mad->data[33] >> 4; | |
185 | props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); | |
5ae2a7a8 | 186 | props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port]; |
149983af | 187 | props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz; |
5ae2a7a8 | 188 | props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port]; |
225c7b1f RD |
189 | props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); |
190 | props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); | |
191 | props->active_width = out_mad->data[31] & 0xf; | |
192 | props->active_speed = out_mad->data[35] >> 4; | |
193 | props->max_mtu = out_mad->data[41] & 0xf; | |
194 | props->active_mtu = out_mad->data[36] >> 4; | |
195 | props->subnet_timeout = out_mad->data[51] & 0x1f; | |
196 | props->max_vl_num = out_mad->data[37] >> 4; | |
197 | props->init_type_reply = out_mad->data[41] >> 4; | |
198 | ||
199 | out: | |
200 | kfree(in_mad); | |
201 | kfree(out_mad); | |
202 | ||
203 | return err; | |
204 | } | |
205 | ||
206 | static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index, | |
207 | union ib_gid *gid) | |
208 | { | |
209 | struct ib_smp *in_mad = NULL; | |
210 | struct ib_smp *out_mad = NULL; | |
211 | int err = -ENOMEM; | |
212 | ||
213 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
214 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
215 | if (!in_mad || !out_mad) | |
216 | goto out; | |
217 | ||
218 | init_query_mad(in_mad); | |
219 | in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; | |
220 | in_mad->attr_mod = cpu_to_be32(port); | |
221 | ||
222 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); | |
223 | if (err) | |
224 | goto out; | |
225 | ||
226 | memcpy(gid->raw, out_mad->data + 8, 8); | |
227 | ||
228 | init_query_mad(in_mad); | |
229 | in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; | |
230 | in_mad->attr_mod = cpu_to_be32(index / 8); | |
231 | ||
232 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); | |
233 | if (err) | |
234 | goto out; | |
235 | ||
236 | memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); | |
237 | ||
238 | out: | |
239 | kfree(in_mad); | |
240 | kfree(out_mad); | |
241 | return err; | |
242 | } | |
243 | ||
244 | static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, | |
245 | u16 *pkey) | |
246 | { | |
247 | struct ib_smp *in_mad = NULL; | |
248 | struct ib_smp *out_mad = NULL; | |
249 | int err = -ENOMEM; | |
250 | ||
251 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
252 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
253 | if (!in_mad || !out_mad) | |
254 | goto out; | |
255 | ||
256 | init_query_mad(in_mad); | |
257 | in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; | |
258 | in_mad->attr_mod = cpu_to_be32(index / 32); | |
259 | ||
260 | err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); | |
261 | if (err) | |
262 | goto out; | |
263 | ||
264 | *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); | |
265 | ||
266 | out: | |
267 | kfree(in_mad); | |
268 | kfree(out_mad); | |
269 | return err; | |
270 | } | |
271 | ||
272 | static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask, | |
273 | struct ib_device_modify *props) | |
274 | { | |
275 | if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) | |
276 | return -EOPNOTSUPP; | |
277 | ||
278 | if (mask & IB_DEVICE_MODIFY_NODE_DESC) { | |
279 | spin_lock(&to_mdev(ibdev)->sm_lock); | |
280 | memcpy(ibdev->node_desc, props->node_desc, 64); | |
281 | spin_unlock(&to_mdev(ibdev)->sm_lock); | |
282 | } | |
283 | ||
284 | return 0; | |
285 | } | |
286 | ||
287 | static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols, | |
288 | u32 cap_mask) | |
289 | { | |
290 | struct mlx4_cmd_mailbox *mailbox; | |
291 | int err; | |
292 | ||
293 | mailbox = mlx4_alloc_cmd_mailbox(dev->dev); | |
294 | if (IS_ERR(mailbox)) | |
295 | return PTR_ERR(mailbox); | |
296 | ||
297 | memset(mailbox->buf, 0, 256); | |
5ae2a7a8 RD |
298 | |
299 | if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) { | |
300 | *(u8 *) mailbox->buf = !!reset_qkey_viols << 6; | |
301 | ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask); | |
302 | } else { | |
303 | ((u8 *) mailbox->buf)[3] = !!reset_qkey_viols; | |
304 | ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask); | |
305 | } | |
225c7b1f RD |
306 | |
307 | err = mlx4_cmd(dev->dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT, | |
308 | MLX4_CMD_TIME_CLASS_B); | |
309 | ||
310 | mlx4_free_cmd_mailbox(dev->dev, mailbox); | |
311 | return err; | |
312 | } | |
313 | ||
314 | static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask, | |
315 | struct ib_port_modify *props) | |
316 | { | |
317 | struct ib_port_attr attr; | |
318 | u32 cap_mask; | |
319 | int err; | |
320 | ||
321 | mutex_lock(&to_mdev(ibdev)->cap_mask_mutex); | |
322 | ||
323 | err = mlx4_ib_query_port(ibdev, port, &attr); | |
324 | if (err) | |
325 | goto out; | |
326 | ||
327 | cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & | |
328 | ~props->clr_port_cap_mask; | |
329 | ||
330 | err = mlx4_SET_PORT(to_mdev(ibdev), port, | |
331 | !!(mask & IB_PORT_RESET_QKEY_CNTR), | |
332 | cap_mask); | |
333 | ||
334 | out: | |
335 | mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); | |
336 | return err; | |
337 | } | |
338 | ||
339 | static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev, | |
340 | struct ib_udata *udata) | |
341 | { | |
342 | struct mlx4_ib_dev *dev = to_mdev(ibdev); | |
343 | struct mlx4_ib_ucontext *context; | |
344 | struct mlx4_ib_alloc_ucontext_resp resp; | |
345 | int err; | |
346 | ||
3b4a8cd5 JM |
347 | if (!dev->ib_active) |
348 | return ERR_PTR(-EAGAIN); | |
349 | ||
225c7b1f RD |
350 | resp.qp_tab_size = dev->dev->caps.num_qps; |
351 | resp.bf_reg_size = dev->dev->caps.bf_reg_size; | |
352 | resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page; | |
353 | ||
354 | context = kmalloc(sizeof *context, GFP_KERNEL); | |
355 | if (!context) | |
356 | return ERR_PTR(-ENOMEM); | |
357 | ||
358 | err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar); | |
359 | if (err) { | |
360 | kfree(context); | |
361 | return ERR_PTR(err); | |
362 | } | |
363 | ||
364 | INIT_LIST_HEAD(&context->db_page_list); | |
365 | mutex_init(&context->db_page_mutex); | |
366 | ||
367 | err = ib_copy_to_udata(udata, &resp, sizeof resp); | |
368 | if (err) { | |
369 | mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar); | |
370 | kfree(context); | |
371 | return ERR_PTR(-EFAULT); | |
372 | } | |
373 | ||
374 | return &context->ibucontext; | |
375 | } | |
376 | ||
377 | static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext) | |
378 | { | |
379 | struct mlx4_ib_ucontext *context = to_mucontext(ibcontext); | |
380 | ||
381 | mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar); | |
382 | kfree(context); | |
383 | ||
384 | return 0; | |
385 | } | |
386 | ||
387 | static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) | |
388 | { | |
389 | struct mlx4_ib_dev *dev = to_mdev(context->device); | |
390 | ||
391 | if (vma->vm_end - vma->vm_start != PAGE_SIZE) | |
392 | return -EINVAL; | |
393 | ||
394 | if (vma->vm_pgoff == 0) { | |
395 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | |
396 | ||
397 | if (io_remap_pfn_range(vma, vma->vm_start, | |
398 | to_mucontext(context)->uar.pfn, | |
399 | PAGE_SIZE, vma->vm_page_prot)) | |
400 | return -EAGAIN; | |
401 | } else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) { | |
e1d60ec6 | 402 | vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); |
225c7b1f RD |
403 | |
404 | if (io_remap_pfn_range(vma, vma->vm_start, | |
405 | to_mucontext(context)->uar.pfn + | |
406 | dev->dev->caps.num_uars, | |
407 | PAGE_SIZE, vma->vm_page_prot)) | |
408 | return -EAGAIN; | |
409 | } else | |
410 | return -EINVAL; | |
411 | ||
412 | return 0; | |
413 | } | |
414 | ||
415 | static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev, | |
416 | struct ib_ucontext *context, | |
417 | struct ib_udata *udata) | |
418 | { | |
419 | struct mlx4_ib_pd *pd; | |
420 | int err; | |
421 | ||
422 | pd = kmalloc(sizeof *pd, GFP_KERNEL); | |
423 | if (!pd) | |
424 | return ERR_PTR(-ENOMEM); | |
425 | ||
426 | err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn); | |
427 | if (err) { | |
428 | kfree(pd); | |
429 | return ERR_PTR(err); | |
430 | } | |
431 | ||
432 | if (context) | |
433 | if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) { | |
434 | mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn); | |
435 | kfree(pd); | |
436 | return ERR_PTR(-EFAULT); | |
437 | } | |
438 | ||
439 | return &pd->ibpd; | |
440 | } | |
441 | ||
442 | static int mlx4_ib_dealloc_pd(struct ib_pd *pd) | |
443 | { | |
444 | mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn); | |
445 | kfree(pd); | |
446 | ||
447 | return 0; | |
448 | } | |
449 | ||
450 | static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
451 | { | |
452 | return mlx4_multicast_attach(to_mdev(ibqp->device)->dev, | |
521e575b RL |
453 | &to_mqp(ibqp)->mqp, gid->raw, |
454 | !!(to_mqp(ibqp)->flags & | |
455 | MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK)); | |
225c7b1f RD |
456 | } |
457 | ||
458 | static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
459 | { | |
460 | return mlx4_multicast_detach(to_mdev(ibqp->device)->dev, | |
461 | &to_mqp(ibqp)->mqp, gid->raw); | |
462 | } | |
463 | ||
464 | static int init_node_data(struct mlx4_ib_dev *dev) | |
465 | { | |
466 | struct ib_smp *in_mad = NULL; | |
467 | struct ib_smp *out_mad = NULL; | |
468 | int err = -ENOMEM; | |
469 | ||
470 | in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); | |
471 | out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); | |
472 | if (!in_mad || !out_mad) | |
473 | goto out; | |
474 | ||
475 | init_query_mad(in_mad); | |
476 | in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; | |
477 | ||
478 | err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); | |
479 | if (err) | |
480 | goto out; | |
481 | ||
482 | memcpy(dev->ib_dev.node_desc, out_mad->data, 64); | |
483 | ||
484 | in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; | |
485 | ||
486 | err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); | |
487 | if (err) | |
488 | goto out; | |
489 | ||
893da759 | 490 | dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32)); |
225c7b1f RD |
491 | memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); |
492 | ||
493 | out: | |
494 | kfree(in_mad); | |
495 | kfree(out_mad); | |
496 | return err; | |
497 | } | |
498 | ||
f4e91eb4 TJ |
499 | static ssize_t show_hca(struct device *device, struct device_attribute *attr, |
500 | char *buf) | |
cd9281d8 | 501 | { |
f4e91eb4 TJ |
502 | struct mlx4_ib_dev *dev = |
503 | container_of(device, struct mlx4_ib_dev, ib_dev.dev); | |
cd9281d8 JM |
504 | return sprintf(buf, "MT%d\n", dev->dev->pdev->device); |
505 | } | |
506 | ||
f4e91eb4 TJ |
507 | static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr, |
508 | char *buf) | |
cd9281d8 | 509 | { |
f4e91eb4 TJ |
510 | struct mlx4_ib_dev *dev = |
511 | container_of(device, struct mlx4_ib_dev, ib_dev.dev); | |
cd9281d8 JM |
512 | return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32), |
513 | (int) (dev->dev->caps.fw_ver >> 16) & 0xffff, | |
514 | (int) dev->dev->caps.fw_ver & 0xffff); | |
515 | } | |
516 | ||
f4e91eb4 TJ |
517 | static ssize_t show_rev(struct device *device, struct device_attribute *attr, |
518 | char *buf) | |
cd9281d8 | 519 | { |
f4e91eb4 TJ |
520 | struct mlx4_ib_dev *dev = |
521 | container_of(device, struct mlx4_ib_dev, ib_dev.dev); | |
cd9281d8 JM |
522 | return sprintf(buf, "%x\n", dev->dev->rev_id); |
523 | } | |
524 | ||
f4e91eb4 TJ |
525 | static ssize_t show_board(struct device *device, struct device_attribute *attr, |
526 | char *buf) | |
cd9281d8 | 527 | { |
f4e91eb4 TJ |
528 | struct mlx4_ib_dev *dev = |
529 | container_of(device, struct mlx4_ib_dev, ib_dev.dev); | |
530 | return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN, | |
531 | dev->dev->board_id); | |
cd9281d8 JM |
532 | } |
533 | ||
f4e91eb4 TJ |
534 | static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
535 | static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); | |
536 | static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); | |
537 | static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); | |
cd9281d8 | 538 | |
f4e91eb4 TJ |
539 | static struct device_attribute *mlx4_class_attributes[] = { |
540 | &dev_attr_hw_rev, | |
541 | &dev_attr_fw_ver, | |
542 | &dev_attr_hca_type, | |
543 | &dev_attr_board_id | |
cd9281d8 JM |
544 | }; |
545 | ||
225c7b1f RD |
546 | static void *mlx4_ib_add(struct mlx4_dev *dev) |
547 | { | |
548 | struct mlx4_ib_dev *ibdev; | |
22e7ef9c | 549 | int num_ports = 0; |
cd9281d8 | 550 | int i; |
225c7b1f | 551 | |
f1aa78b2 | 552 | printk_once(KERN_INFO "%s", mlx4_ib_version); |
68f3948d | 553 | |
22e7ef9c RD |
554 | mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) |
555 | num_ports++; | |
556 | ||
557 | /* No point in registering a device with no ports... */ | |
558 | if (num_ports == 0) | |
559 | return NULL; | |
560 | ||
225c7b1f RD |
561 | ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev); |
562 | if (!ibdev) { | |
563 | dev_err(&dev->pdev->dev, "Device struct alloc failed\n"); | |
564 | return NULL; | |
565 | } | |
566 | ||
567 | if (mlx4_pd_alloc(dev, &ibdev->priv_pdn)) | |
568 | goto err_dealloc; | |
569 | ||
570 | if (mlx4_uar_alloc(dev, &ibdev->priv_uar)) | |
571 | goto err_pd; | |
572 | ||
573 | ibdev->uar_map = ioremap(ibdev->priv_uar.pfn << PAGE_SHIFT, PAGE_SIZE); | |
574 | if (!ibdev->uar_map) | |
575 | goto err_uar; | |
26c6bc7b | 576 | MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock); |
225c7b1f | 577 | |
225c7b1f RD |
578 | ibdev->dev = dev; |
579 | ||
580 | strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX); | |
581 | ibdev->ib_dev.owner = THIS_MODULE; | |
582 | ibdev->ib_dev.node_type = RDMA_NODE_IB_CA; | |
95d04f07 | 583 | ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey; |
22e7ef9c | 584 | ibdev->num_ports = num_ports; |
7ff93f8b | 585 | ibdev->ib_dev.phys_port_cnt = ibdev->num_ports; |
b8dd786f | 586 | ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors; |
225c7b1f RD |
587 | ibdev->ib_dev.dma_device = &dev->pdev->dev; |
588 | ||
589 | ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION; | |
590 | ibdev->ib_dev.uverbs_cmd_mask = | |
591 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
592 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
593 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
594 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
595 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
596 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
597 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
598 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
599 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
bbf8eed1 | 600 | (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | |
225c7b1f RD |
601 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | |
602 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
603 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
6a775e2b | 604 | (1ull << IB_USER_VERBS_CMD_QUERY_QP) | |
225c7b1f RD |
605 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | |
606 | (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | | |
607 | (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) | | |
608 | (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | | |
609 | (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | | |
65541cb7 | 610 | (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | |
225c7b1f RD |
611 | (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); |
612 | ||
613 | ibdev->ib_dev.query_device = mlx4_ib_query_device; | |
614 | ibdev->ib_dev.query_port = mlx4_ib_query_port; | |
615 | ibdev->ib_dev.query_gid = mlx4_ib_query_gid; | |
616 | ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey; | |
617 | ibdev->ib_dev.modify_device = mlx4_ib_modify_device; | |
618 | ibdev->ib_dev.modify_port = mlx4_ib_modify_port; | |
619 | ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext; | |
620 | ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext; | |
621 | ibdev->ib_dev.mmap = mlx4_ib_mmap; | |
622 | ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd; | |
623 | ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd; | |
624 | ibdev->ib_dev.create_ah = mlx4_ib_create_ah; | |
625 | ibdev->ib_dev.query_ah = mlx4_ib_query_ah; | |
626 | ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah; | |
627 | ibdev->ib_dev.create_srq = mlx4_ib_create_srq; | |
628 | ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq; | |
65541cb7 | 629 | ibdev->ib_dev.query_srq = mlx4_ib_query_srq; |
225c7b1f RD |
630 | ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq; |
631 | ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv; | |
632 | ibdev->ib_dev.create_qp = mlx4_ib_create_qp; | |
633 | ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp; | |
6a775e2b | 634 | ibdev->ib_dev.query_qp = mlx4_ib_query_qp; |
225c7b1f RD |
635 | ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp; |
636 | ibdev->ib_dev.post_send = mlx4_ib_post_send; | |
637 | ibdev->ib_dev.post_recv = mlx4_ib_post_recv; | |
638 | ibdev->ib_dev.create_cq = mlx4_ib_create_cq; | |
3fdcb97f | 639 | ibdev->ib_dev.modify_cq = mlx4_ib_modify_cq; |
bbf8eed1 | 640 | ibdev->ib_dev.resize_cq = mlx4_ib_resize_cq; |
225c7b1f RD |
641 | ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq; |
642 | ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq; | |
643 | ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq; | |
644 | ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr; | |
645 | ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr; | |
646 | ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr; | |
95d04f07 RD |
647 | ibdev->ib_dev.alloc_fast_reg_mr = mlx4_ib_alloc_fast_reg_mr; |
648 | ibdev->ib_dev.alloc_fast_reg_page_list = mlx4_ib_alloc_fast_reg_page_list; | |
649 | ibdev->ib_dev.free_fast_reg_page_list = mlx4_ib_free_fast_reg_page_list; | |
225c7b1f RD |
650 | ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach; |
651 | ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach; | |
652 | ibdev->ib_dev.process_mad = mlx4_ib_process_mad; | |
653 | ||
8ad11fb6 JM |
654 | ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc; |
655 | ibdev->ib_dev.map_phys_fmr = mlx4_ib_map_phys_fmr; | |
656 | ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr; | |
657 | ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc; | |
658 | ||
225c7b1f RD |
659 | if (init_node_data(ibdev)) |
660 | goto err_map; | |
661 | ||
662 | spin_lock_init(&ibdev->sm_lock); | |
663 | mutex_init(&ibdev->cap_mask_mutex); | |
664 | ||
9a6edb60 | 665 | if (ib_register_device(&ibdev->ib_dev, NULL)) |
225c7b1f RD |
666 | goto err_map; |
667 | ||
668 | if (mlx4_ib_mad_init(ibdev)) | |
669 | goto err_reg; | |
670 | ||
cd9281d8 | 671 | for (i = 0; i < ARRAY_SIZE(mlx4_class_attributes); ++i) { |
f4e91eb4 TJ |
672 | if (device_create_file(&ibdev->ib_dev.dev, |
673 | mlx4_class_attributes[i])) | |
cd9281d8 JM |
674 | goto err_reg; |
675 | } | |
676 | ||
3b4a8cd5 JM |
677 | ibdev->ib_active = true; |
678 | ||
225c7b1f RD |
679 | return ibdev; |
680 | ||
681 | err_reg: | |
682 | ib_unregister_device(&ibdev->ib_dev); | |
683 | ||
684 | err_map: | |
685 | iounmap(ibdev->uar_map); | |
686 | ||
687 | err_uar: | |
688 | mlx4_uar_free(dev, &ibdev->priv_uar); | |
689 | ||
690 | err_pd: | |
691 | mlx4_pd_free(dev, ibdev->priv_pdn); | |
692 | ||
693 | err_dealloc: | |
694 | ib_dealloc_device(&ibdev->ib_dev); | |
695 | ||
696 | return NULL; | |
697 | } | |
698 | ||
699 | static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr) | |
700 | { | |
701 | struct mlx4_ib_dev *ibdev = ibdev_ptr; | |
702 | int p; | |
703 | ||
a6a47771 YP |
704 | mlx4_ib_mad_cleanup(ibdev); |
705 | ib_unregister_device(&ibdev->ib_dev); | |
706 | ||
7ff93f8b | 707 | for (p = 1; p <= ibdev->num_ports; ++p) |
225c7b1f RD |
708 | mlx4_CLOSE_PORT(dev, p); |
709 | ||
225c7b1f RD |
710 | iounmap(ibdev->uar_map); |
711 | mlx4_uar_free(dev, &ibdev->priv_uar); | |
712 | mlx4_pd_free(dev, ibdev->priv_pdn); | |
713 | ib_dealloc_device(&ibdev->ib_dev); | |
714 | } | |
715 | ||
716 | static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr, | |
37608eea | 717 | enum mlx4_dev_event event, int port) |
225c7b1f RD |
718 | { |
719 | struct ib_event ibev; | |
7ff93f8b YP |
720 | struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr); |
721 | ||
722 | if (port > ibdev->num_ports) | |
723 | return; | |
225c7b1f RD |
724 | |
725 | switch (event) { | |
37608eea RD |
726 | case MLX4_DEV_EVENT_PORT_UP: |
727 | ibev.event = IB_EVENT_PORT_ACTIVE; | |
225c7b1f RD |
728 | break; |
729 | ||
37608eea RD |
730 | case MLX4_DEV_EVENT_PORT_DOWN: |
731 | ibev.event = IB_EVENT_PORT_ERR; | |
732 | break; | |
733 | ||
734 | case MLX4_DEV_EVENT_CATASTROPHIC_ERROR: | |
3b4a8cd5 | 735 | ibdev->ib_active = false; |
225c7b1f RD |
736 | ibev.event = IB_EVENT_DEVICE_FATAL; |
737 | break; | |
738 | ||
739 | default: | |
740 | return; | |
741 | } | |
742 | ||
743 | ibev.device = ibdev_ptr; | |
744 | ibev.element.port_num = port; | |
745 | ||
746 | ib_dispatch_event(&ibev); | |
747 | } | |
748 | ||
749 | static struct mlx4_interface mlx4_ib_interface = { | |
750 | .add = mlx4_ib_add, | |
751 | .remove = mlx4_ib_remove, | |
752 | .event = mlx4_ib_event | |
753 | }; | |
754 | ||
755 | static int __init mlx4_ib_init(void) | |
756 | { | |
757 | return mlx4_register_interface(&mlx4_ib_interface); | |
758 | } | |
759 | ||
760 | static void __exit mlx4_ib_cleanup(void) | |
761 | { | |
762 | mlx4_unregister_interface(&mlx4_ib_interface); | |
763 | } | |
764 | ||
765 | module_init(mlx4_ib_init); | |
766 | module_exit(mlx4_ib_cleanup); |