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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[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;
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
150out:
151 kfree(in_mad);
152 kfree(out_mad);
153
154 return err;
155}
156
157static 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
199out:
200 kfree(in_mad);
201 kfree(out_mad);
202
203 return err;
204}
205
206static 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
238out:
239 kfree(in_mad);
240 kfree(out_mad);
241 return err;
242}
243
244static 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
266out:
267 kfree(in_mad);
268 kfree(out_mad);
269 return err;
270}
271
272static 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
287static 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
314static 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
334out:
335 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
336 return err;
337}
338
339static 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
377static 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
387static 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
415static 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
442static 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
450static 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
458static 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
464static 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
493out:
494 kfree(in_mad);
495 kfree(out_mad);
496 return err;
497}
498
f4e91eb4
TJ		 499static 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		 507static 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		 517static 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		 525static 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		 534static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
535static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
536static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
537static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
cd9281d8 538
f4e91eb4
TJ		 539static 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		 546static 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
665 if (ib_register_device(&ibdev->ib_dev))
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
681err_reg:
682 ib_unregister_device(&ibdev->ib_dev);
683
684err_map:
685 iounmap(ibdev->uar_map);
686
687err_uar:
688 mlx4_uar_free(dev, &ibdev->priv_uar);
689
690err_pd:
691 mlx4_pd_free(dev, ibdev->priv_pdn);
692
693err_dealloc:
694 ib_dealloc_device(&ibdev->ib_dev);
695
696 return NULL;
697}
698
699static 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
716static 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
749static struct mlx4_interface mlx4_ib_interface = {
750 .add = mlx4_ib_add,
751 .remove = mlx4_ib_remove,
752 .event = mlx4_ib_event
753};
754
755static int __init mlx4_ib_init(void)
756{
757 return mlx4_register_interface(&mlx4_ib_interface);
758}
759
760static void __exit mlx4_ib_cleanup(void)
761{
762 mlx4_unregister_interface(&mlx4_ib_interface);
763}
764
765module_init(mlx4_ib_init);
766module_exit(mlx4_ib_cleanup);
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