]> bbs.cooldavid.org Git - net-next-2.6.git/blame - drivers/infiniband/hw/mlx4/main.c
git://bbs.cooldavid.org / net-next-2.6.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
IB/core: Add support for masked atomic operations
[net-next-2.6.git] / drivers / infiniband / hw / mlx4 / main.c
CommitLineData
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
52MODULE_AUTHOR("Roland Dreier");
53MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver");
54MODULE_LICENSE("Dual BSD/GPL");
55MODULE_VERSION(DRV_VERSION);
56
68f3948d 57static const char mlx4_ib_version[] =
225c7b1f
RD		 58 DRV_NAME ": Mellanox ConnectX InfiniBand driver v"
59 DRV_VERSION " (" DRV_RELDATE ")\n";
60
61static 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
69static 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;
5ae2a7a8 142 props->max_pkeys = dev->dev->caps.pkey_table_len[1];
225c7b1f
RD		 143 props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms;
144 props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm;
145 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
146 props->max_mcast_grp;
147 props->max_map_per_fmr = (1 << (32 - ilog2(dev->dev->caps.num_mpts))) - 1;
148
149out:
150 kfree(in_mad);
151 kfree(out_mad);
152
153 return err;
154}
155
156static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
157 struct ib_port_attr *props)
158{
159 struct ib_smp *in_mad = NULL;
160 struct ib_smp *out_mad = NULL;
161 int err = -ENOMEM;
162
163 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
164 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
165 if (!in_mad || !out_mad)
166 goto out;
167
168 memset(props, 0, sizeof *props);
169
170 init_query_mad(in_mad);
171 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
172 in_mad->attr_mod = cpu_to_be32(port);
173
174 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
175 if (err)
176 goto out;
177
178 props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16));
179 props->lmc = out_mad->data[34] & 0x7;
180 props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18));
181 props->sm_sl = out_mad->data[36] & 0xf;
182 props->state = out_mad->data[32] & 0xf;
183 props->phys_state = out_mad->data[33] >> 4;
184 props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20));
5ae2a7a8 185 props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port];
149983af 186 props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz;
5ae2a7a8 187 props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port];
225c7b1f
RD		 188 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46));
189 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48));
190 props->active_width = out_mad->data[31] & 0xf;
191 props->active_speed = out_mad->data[35] >> 4;
192 props->max_mtu = out_mad->data[41] & 0xf;
193 props->active_mtu = out_mad->data[36] >> 4;
194 props->subnet_timeout = out_mad->data[51] & 0x1f;
195 props->max_vl_num = out_mad->data[37] >> 4;
196 props->init_type_reply = out_mad->data[41] >> 4;
197
198out:
199 kfree(in_mad);
200 kfree(out_mad);
201
202 return err;
203}
204
205static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
206 union ib_gid *gid)
207{
208 struct ib_smp *in_mad = NULL;
209 struct ib_smp *out_mad = NULL;
210 int err = -ENOMEM;
211
212 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
213 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
214 if (!in_mad || !out_mad)
215 goto out;
216
217 init_query_mad(in_mad);
218 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
219 in_mad->attr_mod = cpu_to_be32(port);
220
221 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
222 if (err)
223 goto out;
224
225 memcpy(gid->raw, out_mad->data + 8, 8);
226
227 init_query_mad(in_mad);
228 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO;
229 in_mad->attr_mod = cpu_to_be32(index / 8);
230
231 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
232 if (err)
233 goto out;
234
235 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
236
237out:
238 kfree(in_mad);
239 kfree(out_mad);
240 return err;
241}
242
243static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
244 u16 *pkey)
245{
246 struct ib_smp *in_mad = NULL;
247 struct ib_smp *out_mad = NULL;
248 int err = -ENOMEM;
249
250 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
251 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
252 if (!in_mad || !out_mad)
253 goto out;
254
255 init_query_mad(in_mad);
256 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE;
257 in_mad->attr_mod = cpu_to_be32(index / 32);
258
259 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
260 if (err)
261 goto out;
262
263 *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]);
264
265out:
266 kfree(in_mad);
267 kfree(out_mad);
268 return err;
269}
270
271static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask,
272 struct ib_device_modify *props)
273{
274 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
275 return -EOPNOTSUPP;
276
277 if (mask & IB_DEVICE_MODIFY_NODE_DESC) {
278 spin_lock(&to_mdev(ibdev)->sm_lock);
279 memcpy(ibdev->node_desc, props->node_desc, 64);
280 spin_unlock(&to_mdev(ibdev)->sm_lock);
281 }
282
283 return 0;
284}
285
286static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols,
287 u32 cap_mask)
288{
289 struct mlx4_cmd_mailbox *mailbox;
290 int err;
291
292 mailbox = mlx4_alloc_cmd_mailbox(dev->dev);
293 if (IS_ERR(mailbox))
294 return PTR_ERR(mailbox);
295
296 memset(mailbox->buf, 0, 256);
5ae2a7a8
RD		 297
298 if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
299 *(u8 *) mailbox->buf = !!reset_qkey_viols << 6;
300 ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask);
301 } else {
302 ((u8 *) mailbox->buf)[3] = !!reset_qkey_viols;
303 ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask);
304 }
225c7b1f
RD		 305
306 err = mlx4_cmd(dev->dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT,
307 MLX4_CMD_TIME_CLASS_B);
308
309 mlx4_free_cmd_mailbox(dev->dev, mailbox);
310 return err;
311}
312
313static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask,
314 struct ib_port_modify *props)
315{
316 struct ib_port_attr attr;
317 u32 cap_mask;
318 int err;
319
320 mutex_lock(&to_mdev(ibdev)->cap_mask_mutex);
321
322 err = mlx4_ib_query_port(ibdev, port, &attr);
323 if (err)
324 goto out;
325
326 cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
327 ~props->clr_port_cap_mask;
328
329 err = mlx4_SET_PORT(to_mdev(ibdev), port,
330 !!(mask & IB_PORT_RESET_QKEY_CNTR),
331 cap_mask);
332
333out:
334 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
335 return err;
336}
337
338static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev,
339 struct ib_udata *udata)
340{
341 struct mlx4_ib_dev *dev = to_mdev(ibdev);
342 struct mlx4_ib_ucontext *context;
343 struct mlx4_ib_alloc_ucontext_resp resp;
344 int err;
345
3b4a8cd5
JM		 346 if (!dev->ib_active)
347 return ERR_PTR(-EAGAIN);
348
225c7b1f
RD		 349 resp.qp_tab_size = dev->dev->caps.num_qps;
350 resp.bf_reg_size = dev->dev->caps.bf_reg_size;
351 resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
352
353 context = kmalloc(sizeof *context, GFP_KERNEL);
354 if (!context)
355 return ERR_PTR(-ENOMEM);
356
357 err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar);
358 if (err) {
359 kfree(context);
360 return ERR_PTR(err);
361 }
362
363 INIT_LIST_HEAD(&context->db_page_list);
364 mutex_init(&context->db_page_mutex);
365
366 err = ib_copy_to_udata(udata, &resp, sizeof resp);
367 if (err) {
368 mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar);
369 kfree(context);
370 return ERR_PTR(-EFAULT);
371 }
372
373 return &context->ibucontext;
374}
375
376static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
377{
378 struct mlx4_ib_ucontext *context = to_mucontext(ibcontext);
379
380 mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar);
381 kfree(context);
382
383 return 0;
384}
385
386static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
387{
388 struct mlx4_ib_dev *dev = to_mdev(context->device);
389
390 if (vma->vm_end - vma->vm_start != PAGE_SIZE)
391 return -EINVAL;
392
393 if (vma->vm_pgoff == 0) {
394 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
395
396 if (io_remap_pfn_range(vma, vma->vm_start,
397 to_mucontext(context)->uar.pfn,
398 PAGE_SIZE, vma->vm_page_prot))
399 return -EAGAIN;
400 } else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) {
e1d60ec6 401 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
225c7b1f
RD		 402
403 if (io_remap_pfn_range(vma, vma->vm_start,
404 to_mucontext(context)->uar.pfn +
405 dev->dev->caps.num_uars,
406 PAGE_SIZE, vma->vm_page_prot))
407 return -EAGAIN;
408 } else
409 return -EINVAL;
410
411 return 0;
412}
413
414static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev,
415 struct ib_ucontext *context,
416 struct ib_udata *udata)
417{
418 struct mlx4_ib_pd *pd;
419 int err;
420
421 pd = kmalloc(sizeof *pd, GFP_KERNEL);
422 if (!pd)
423 return ERR_PTR(-ENOMEM);
424
425 err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn);
426 if (err) {
427 kfree(pd);
428 return ERR_PTR(err);
429 }
430
431 if (context)
432 if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) {
433 mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn);
434 kfree(pd);
435 return ERR_PTR(-EFAULT);
436 }
437
438 return &pd->ibpd;
439}
440
441static int mlx4_ib_dealloc_pd(struct ib_pd *pd)
442{
443 mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn);
444 kfree(pd);
445
446 return 0;
447}
448
449static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
450{
451 return mlx4_multicast_attach(to_mdev(ibqp->device)->dev,
521e575b
RL		 452 &to_mqp(ibqp)->mqp, gid->raw,
453 !!(to_mqp(ibqp)->flags &
454 MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK));
225c7b1f
RD		 455}
456
457static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
458{
459 return mlx4_multicast_detach(to_mdev(ibqp->device)->dev,
460 &to_mqp(ibqp)->mqp, gid->raw);
461}
462
463static int init_node_data(struct mlx4_ib_dev *dev)
464{
465 struct ib_smp *in_mad = NULL;
466 struct ib_smp *out_mad = NULL;
467 int err = -ENOMEM;
468
469 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
470 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
471 if (!in_mad || !out_mad)
472 goto out;
473
474 init_query_mad(in_mad);
475 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
476
477 err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
478 if (err)
479 goto out;
480
481 memcpy(dev->ib_dev.node_desc, out_mad->data, 64);
482
483 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
484
485 err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
486 if (err)
487 goto out;
488
893da759 489 dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32));
225c7b1f
RD		 490 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
491
492out:
493 kfree(in_mad);
494 kfree(out_mad);
495 return err;
496}
497
f4e91eb4
TJ		 498static ssize_t show_hca(struct device *device, struct device_attribute *attr,
499 char *buf)
cd9281d8 500{
f4e91eb4
TJ		 501 struct mlx4_ib_dev *dev =
502 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
cd9281d8
JM		 503 return sprintf(buf, "MT%d\n", dev->dev->pdev->device);
504}
505
f4e91eb4
TJ		 506static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr,
507 char *buf)
cd9281d8 508{
f4e91eb4
TJ		 509 struct mlx4_ib_dev *dev =
510 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
cd9281d8
JM		 511 return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32),
512 (int) (dev->dev->caps.fw_ver >> 16) & 0xffff,
513 (int) dev->dev->caps.fw_ver & 0xffff);
514}
515
f4e91eb4
TJ		 516static ssize_t show_rev(struct device *device, struct device_attribute *attr,
517 char *buf)
cd9281d8 518{
f4e91eb4
TJ		 519 struct mlx4_ib_dev *dev =
520 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
cd9281d8
JM		 521 return sprintf(buf, "%x\n", dev->dev->rev_id);
522}
523
f4e91eb4
TJ		 524static ssize_t show_board(struct device *device, struct device_attribute *attr,
525 char *buf)
cd9281d8 526{
f4e91eb4
TJ		 527 struct mlx4_ib_dev *dev =
528 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
529 return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN,
530 dev->dev->board_id);
cd9281d8
JM		 531}
532
f4e91eb4
TJ		 533static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
534static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
535static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
536static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
cd9281d8 537
f4e91eb4
TJ		 538static struct device_attribute *mlx4_class_attributes[] = {
539 &dev_attr_hw_rev,
540 &dev_attr_fw_ver,
541 &dev_attr_hca_type,
542 &dev_attr_board_id
cd9281d8
JM		 543};
544
225c7b1f
RD		 545static void *mlx4_ib_add(struct mlx4_dev *dev)
546{
547 struct mlx4_ib_dev *ibdev;
22e7ef9c 548 int num_ports = 0;
cd9281d8 549 int i;
225c7b1f 550
f1aa78b2 551 printk_once(KERN_INFO "%s", mlx4_ib_version);
68f3948d 552
22e7ef9c
RD		 553 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
554 num_ports++;
555
556 /* No point in registering a device with no ports... */
557 if (num_ports == 0)
558 return NULL;
559
225c7b1f
RD		 560 ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev);
561 if (!ibdev) {
562 dev_err(&dev->pdev->dev, "Device struct alloc failed\n");
563 return NULL;
564 }
565
566 if (mlx4_pd_alloc(dev, &ibdev->priv_pdn))
567 goto err_dealloc;
568
569 if (mlx4_uar_alloc(dev, &ibdev->priv_uar))
570 goto err_pd;
571
572 ibdev->uar_map = ioremap(ibdev->priv_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
573 if (!ibdev->uar_map)
574 goto err_uar;
26c6bc7b 575 MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock);
225c7b1f 576
225c7b1f
RD		 577 ibdev->dev = dev;
578
579 strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX);
580 ibdev->ib_dev.owner = THIS_MODULE;
581 ibdev->ib_dev.node_type = RDMA_NODE_IB_CA;
95d04f07 582 ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey;
22e7ef9c 583 ibdev->num_ports = num_ports;
7ff93f8b 584 ibdev->ib_dev.phys_port_cnt = ibdev->num_ports;
b8dd786f 585 ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors;
225c7b1f
RD		 586 ibdev->ib_dev.dma_device = &dev->pdev->dev;
587
588 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION;
589 ibdev->ib_dev.uverbs_cmd_mask =
590 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
591 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
592 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
593 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
594 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
595 (1ull << IB_USER_VERBS_CMD_REG_MR) |
596 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
597 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
598 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
bbf8eed1 599 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) |
225c7b1f
RD		 600 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
601 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
602 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
6a775e2b 603 (1ull << IB_USER_VERBS_CMD_QUERY_QP) |
225c7b1f
RD		 604 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
605 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) |
606 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) |
607 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
608 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
65541cb7 609 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) |
225c7b1f
RD		 610 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ);
611
612 ibdev->ib_dev.query_device = mlx4_ib_query_device;
613 ibdev->ib_dev.query_port = mlx4_ib_query_port;
614 ibdev->ib_dev.query_gid = mlx4_ib_query_gid;
615 ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey;
616 ibdev->ib_dev.modify_device = mlx4_ib_modify_device;
617 ibdev->ib_dev.modify_port = mlx4_ib_modify_port;
618 ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext;
619 ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext;
620 ibdev->ib_dev.mmap = mlx4_ib_mmap;
621 ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd;
622 ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd;
623 ibdev->ib_dev.create_ah = mlx4_ib_create_ah;
624 ibdev->ib_dev.query_ah = mlx4_ib_query_ah;
625 ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah;
626 ibdev->ib_dev.create_srq = mlx4_ib_create_srq;
627 ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq;
65541cb7 628 ibdev->ib_dev.query_srq = mlx4_ib_query_srq;
225c7b1f
RD		 629 ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq;
630 ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv;
631 ibdev->ib_dev.create_qp = mlx4_ib_create_qp;
632 ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp;
6a775e2b 633 ibdev->ib_dev.query_qp = mlx4_ib_query_qp;
225c7b1f
RD		 634 ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp;
635 ibdev->ib_dev.post_send = mlx4_ib_post_send;
636 ibdev->ib_dev.post_recv = mlx4_ib_post_recv;
637 ibdev->ib_dev.create_cq = mlx4_ib_create_cq;
3fdcb97f 638 ibdev->ib_dev.modify_cq = mlx4_ib_modify_cq;
bbf8eed1 639 ibdev->ib_dev.resize_cq = mlx4_ib_resize_cq;
225c7b1f
RD		 640 ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq;
641 ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq;
642 ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq;
643 ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr;
644 ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr;
645 ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr;
95d04f07
RD		 646 ibdev->ib_dev.alloc_fast_reg_mr = mlx4_ib_alloc_fast_reg_mr;
647 ibdev->ib_dev.alloc_fast_reg_page_list = mlx4_ib_alloc_fast_reg_page_list;
648 ibdev->ib_dev.free_fast_reg_page_list = mlx4_ib_free_fast_reg_page_list;
225c7b1f
RD		 649 ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach;
650 ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach;
651 ibdev->ib_dev.process_mad = mlx4_ib_process_mad;
652
8ad11fb6
JM		 653 ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc;
654 ibdev->ib_dev.map_phys_fmr = mlx4_ib_map_phys_fmr;
655 ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr;
656 ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc;
657
225c7b1f
RD		 658 if (init_node_data(ibdev))
659 goto err_map;
660
661 spin_lock_init(&ibdev->sm_lock);
662 mutex_init(&ibdev->cap_mask_mutex);
663
664 if (ib_register_device(&ibdev->ib_dev))
665 goto err_map;
666
667 if (mlx4_ib_mad_init(ibdev))
668 goto err_reg;
669
cd9281d8 670 for (i = 0; i < ARRAY_SIZE(mlx4_class_attributes); ++i) {
f4e91eb4
TJ		 671 if (device_create_file(&ibdev->ib_dev.dev,
672 mlx4_class_attributes[i]))
cd9281d8
JM		 673 goto err_reg;
674 }
675
3b4a8cd5
JM		 676 ibdev->ib_active = true;
677
225c7b1f
RD		 678 return ibdev;
679
680err_reg:
681 ib_unregister_device(&ibdev->ib_dev);
682
683err_map:
684 iounmap(ibdev->uar_map);
685
686err_uar:
687 mlx4_uar_free(dev, &ibdev->priv_uar);
688
689err_pd:
690 mlx4_pd_free(dev, ibdev->priv_pdn);
691
692err_dealloc:
693 ib_dealloc_device(&ibdev->ib_dev);
694
695 return NULL;
696}
697
698static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
699{
700 struct mlx4_ib_dev *ibdev = ibdev_ptr;
701 int p;
702
a6a47771
YP		 703 mlx4_ib_mad_cleanup(ibdev);
704 ib_unregister_device(&ibdev->ib_dev);
705
7ff93f8b 706 for (p = 1; p <= ibdev->num_ports; ++p)
225c7b1f
RD		 707 mlx4_CLOSE_PORT(dev, p);
708
225c7b1f
RD		 709 iounmap(ibdev->uar_map);
710 mlx4_uar_free(dev, &ibdev->priv_uar);
711 mlx4_pd_free(dev, ibdev->priv_pdn);
712 ib_dealloc_device(&ibdev->ib_dev);
713}
714
715static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
37608eea 716 enum mlx4_dev_event event, int port)
225c7b1f
RD		 717{
718 struct ib_event ibev;
7ff93f8b
YP		 719 struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr);
720
721 if (port > ibdev->num_ports)
722 return;
225c7b1f
RD		 723
724 switch (event) {
37608eea
RD		 725 case MLX4_DEV_EVENT_PORT_UP:
726 ibev.event = IB_EVENT_PORT_ACTIVE;
225c7b1f
RD		 727 break;
728
37608eea
RD		 729 case MLX4_DEV_EVENT_PORT_DOWN:
730 ibev.event = IB_EVENT_PORT_ERR;
731 break;
732
733 case MLX4_DEV_EVENT_CATASTROPHIC_ERROR:
3b4a8cd5 734 ibdev->ib_active = false;
225c7b1f
RD		 735 ibev.event = IB_EVENT_DEVICE_FATAL;
736 break;
737
738 default:
739 return;
740 }
741
742 ibev.device = ibdev_ptr;
743 ibev.element.port_num = port;
744
745 ib_dispatch_event(&ibev);
746}
747
748static struct mlx4_interface mlx4_ib_interface = {
749 .add = mlx4_ib_add,
750 .remove = mlx4_ib_remove,
751 .event = mlx4_ib_event
752};
753
754static int __init mlx4_ib_init(void)
755{
756 return mlx4_register_interface(&mlx4_ib_interface);
757}
758
759static void __exit mlx4_ib_cleanup(void)
760{
761 mlx4_unregister_interface(&mlx4_ib_interface);
762}
763
764module_init(mlx4_ib_init);
765module_exit(mlx4_ib_cleanup);
Clone of davem's net-next-2.6 tree