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IB/mlx4: Signal node desc changes to SM by using FW to generate trap 144
[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;
5a0fd094 138 props->max_fast_reg_page_list_len = MLX4_MAX_FAST_REG_PAGES;
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{
d0d68b86
JM		 275 struct mlx4_cmd_mailbox *mailbox;
276
225c7b1f
RD		 277 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
278 return -EOPNOTSUPP;
279
d0d68b86
JM		 280 if (!(mask & IB_DEVICE_MODIFY_NODE_DESC))
281 return 0;
282
283 spin_lock(&to_mdev(ibdev)->sm_lock);
284 memcpy(ibdev->node_desc, props->node_desc, 64);
285 spin_unlock(&to_mdev(ibdev)->sm_lock);
286
287 /*
288 * If possible, pass node desc to FW, so it can generate
289 * a 144 trap. If cmd fails, just ignore.
290 */
291 mailbox = mlx4_alloc_cmd_mailbox(to_mdev(ibdev)->dev);
292 if (IS_ERR(mailbox))
293 return 0;
294
295 memset(mailbox->buf, 0, 256);
296 memcpy(mailbox->buf, props->node_desc, 64);
297 mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0,
298 MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A);
299
300 mlx4_free_cmd_mailbox(to_mdev(ibdev)->dev, mailbox);
225c7b1f
RD		 301
302 return 0;
303}
304
305static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols,
306 u32 cap_mask)
307{
308 struct mlx4_cmd_mailbox *mailbox;
309 int err;
310
311 mailbox = mlx4_alloc_cmd_mailbox(dev->dev);
312 if (IS_ERR(mailbox))
313 return PTR_ERR(mailbox);
314
315 memset(mailbox->buf, 0, 256);
5ae2a7a8
RD		 316
317 if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
318 *(u8 *) mailbox->buf = !!reset_qkey_viols << 6;
319 ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask);
320 } else {
321 ((u8 *) mailbox->buf)[3] = !!reset_qkey_viols;
322 ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask);
323 }
225c7b1f
RD		 324
325 err = mlx4_cmd(dev->dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT,
326 MLX4_CMD_TIME_CLASS_B);
327
328 mlx4_free_cmd_mailbox(dev->dev, mailbox);
329 return err;
330}
331
332static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask,
333 struct ib_port_modify *props)
334{
335 struct ib_port_attr attr;
336 u32 cap_mask;
337 int err;
338
339 mutex_lock(&to_mdev(ibdev)->cap_mask_mutex);
340
341 err = mlx4_ib_query_port(ibdev, port, &attr);
342 if (err)
343 goto out;
344
345 cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
346 ~props->clr_port_cap_mask;
347
348 err = mlx4_SET_PORT(to_mdev(ibdev), port,
349 !!(mask & IB_PORT_RESET_QKEY_CNTR),
350 cap_mask);
351
352out:
353 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
354 return err;
355}
356
357static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev,
358 struct ib_udata *udata)
359{
360 struct mlx4_ib_dev *dev = to_mdev(ibdev);
361 struct mlx4_ib_ucontext *context;
362 struct mlx4_ib_alloc_ucontext_resp resp;
363 int err;
364
3b4a8cd5
JM		 365 if (!dev->ib_active)
366 return ERR_PTR(-EAGAIN);
367
225c7b1f
RD		 368 resp.qp_tab_size = dev->dev->caps.num_qps;
369 resp.bf_reg_size = dev->dev->caps.bf_reg_size;
370 resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
371
372 context = kmalloc(sizeof *context, GFP_KERNEL);
373 if (!context)
374 return ERR_PTR(-ENOMEM);
375
376 err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar);
377 if (err) {
378 kfree(context);
379 return ERR_PTR(err);
380 }
381
382 INIT_LIST_HEAD(&context->db_page_list);
383 mutex_init(&context->db_page_mutex);
384
385 err = ib_copy_to_udata(udata, &resp, sizeof resp);
386 if (err) {
387 mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar);
388 kfree(context);
389 return ERR_PTR(-EFAULT);
390 }
391
392 return &context->ibucontext;
393}
394
395static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
396{
397 struct mlx4_ib_ucontext *context = to_mucontext(ibcontext);
398
399 mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar);
400 kfree(context);
401
402 return 0;
403}
404
405static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
406{
407 struct mlx4_ib_dev *dev = to_mdev(context->device);
408
409 if (vma->vm_end - vma->vm_start != PAGE_SIZE)
410 return -EINVAL;
411
412 if (vma->vm_pgoff == 0) {
413 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
414
415 if (io_remap_pfn_range(vma, vma->vm_start,
416 to_mucontext(context)->uar.pfn,
417 PAGE_SIZE, vma->vm_page_prot))
418 return -EAGAIN;
419 } else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) {
e1d60ec6 420 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
225c7b1f
RD		 421
422 if (io_remap_pfn_range(vma, vma->vm_start,
423 to_mucontext(context)->uar.pfn +
424 dev->dev->caps.num_uars,
425 PAGE_SIZE, vma->vm_page_prot))
426 return -EAGAIN;
427 } else
428 return -EINVAL;
429
430 return 0;
431}
432
433static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev,
434 struct ib_ucontext *context,
435 struct ib_udata *udata)
436{
437 struct mlx4_ib_pd *pd;
438 int err;
439
440 pd = kmalloc(sizeof *pd, GFP_KERNEL);
441 if (!pd)
442 return ERR_PTR(-ENOMEM);
443
444 err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn);
445 if (err) {
446 kfree(pd);
447 return ERR_PTR(err);
448 }
449
450 if (context)
451 if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) {
452 mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn);
453 kfree(pd);
454 return ERR_PTR(-EFAULT);
455 }
456
457 return &pd->ibpd;
458}
459
460static int mlx4_ib_dealloc_pd(struct ib_pd *pd)
461{
462 mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn);
463 kfree(pd);
464
465 return 0;
466}
467
468static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
469{
470 return mlx4_multicast_attach(to_mdev(ibqp->device)->dev,
521e575b
RL		 471 &to_mqp(ibqp)->mqp, gid->raw,
472 !!(to_mqp(ibqp)->flags &
473 MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK));
225c7b1f
RD		 474}
475
476static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
477{
478 return mlx4_multicast_detach(to_mdev(ibqp->device)->dev,
479 &to_mqp(ibqp)->mqp, gid->raw);
480}
481
482static int init_node_data(struct mlx4_ib_dev *dev)
483{
484 struct ib_smp *in_mad = NULL;
485 struct ib_smp *out_mad = NULL;
486 int err = -ENOMEM;
487
488 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
489 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
490 if (!in_mad || !out_mad)
491 goto out;
492
493 init_query_mad(in_mad);
494 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
495
496 err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
497 if (err)
498 goto out;
499
500 memcpy(dev->ib_dev.node_desc, out_mad->data, 64);
501
502 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
503
504 err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
505 if (err)
506 goto out;
507
893da759 508 dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32));
225c7b1f
RD		 509 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
510
511out:
512 kfree(in_mad);
513 kfree(out_mad);
514 return err;
515}
516
f4e91eb4
TJ		 517static ssize_t show_hca(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, "MT%d\n", dev->dev->pdev->device);
523}
524
f4e91eb4
TJ		 525static ssize_t show_fw_ver(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);
cd9281d8
JM		 530 return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32),
531 (int) (dev->dev->caps.fw_ver >> 16) & 0xffff,
532 (int) dev->dev->caps.fw_ver & 0xffff);
533}
534
f4e91eb4
TJ		 535static ssize_t show_rev(struct device *device, struct device_attribute *attr,
536 char *buf)
cd9281d8 537{
f4e91eb4
TJ		 538 struct mlx4_ib_dev *dev =
539 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
cd9281d8
JM		 540 return sprintf(buf, "%x\n", dev->dev->rev_id);
541}
542
f4e91eb4
TJ		 543static ssize_t show_board(struct device *device, struct device_attribute *attr,
544 char *buf)
cd9281d8 545{
f4e91eb4
TJ		 546 struct mlx4_ib_dev *dev =
547 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
548 return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN,
549 dev->dev->board_id);
cd9281d8
JM		 550}
551
f4e91eb4
TJ		 552static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
553static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
554static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
555static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
cd9281d8 556
f4e91eb4
TJ		 557static struct device_attribute *mlx4_class_attributes[] = {
558 &dev_attr_hw_rev,
559 &dev_attr_fw_ver,
560 &dev_attr_hca_type,
561 &dev_attr_board_id
cd9281d8
JM		 562};
563
225c7b1f
RD		 564static void *mlx4_ib_add(struct mlx4_dev *dev)
565{
566 struct mlx4_ib_dev *ibdev;
22e7ef9c 567 int num_ports = 0;
cd9281d8 568 int i;
225c7b1f 569
f1aa78b2 570 printk_once(KERN_INFO "%s", mlx4_ib_version);
68f3948d 571
22e7ef9c
RD		 572 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
573 num_ports++;
574
575 /* No point in registering a device with no ports... */
576 if (num_ports == 0)
577 return NULL;
578
225c7b1f
RD		 579 ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev);
580 if (!ibdev) {
581 dev_err(&dev->pdev->dev, "Device struct alloc failed\n");
582 return NULL;
583 }
584
585 if (mlx4_pd_alloc(dev, &ibdev->priv_pdn))
586 goto err_dealloc;
587
588 if (mlx4_uar_alloc(dev, &ibdev->priv_uar))
589 goto err_pd;
590
591 ibdev->uar_map = ioremap(ibdev->priv_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
592 if (!ibdev->uar_map)
593 goto err_uar;
26c6bc7b 594 MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock);
225c7b1f 595
225c7b1f
RD		 596 ibdev->dev = dev;
597
598 strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX);
599 ibdev->ib_dev.owner = THIS_MODULE;
600 ibdev->ib_dev.node_type = RDMA_NODE_IB_CA;
95d04f07 601 ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey;
22e7ef9c 602 ibdev->num_ports = num_ports;
7ff93f8b 603 ibdev->ib_dev.phys_port_cnt = ibdev->num_ports;
b8dd786f 604 ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors;
225c7b1f
RD		 605 ibdev->ib_dev.dma_device = &dev->pdev->dev;
606
607 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION;
608 ibdev->ib_dev.uverbs_cmd_mask =
609 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
610 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
611 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
612 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
613 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
614 (1ull << IB_USER_VERBS_CMD_REG_MR) |
615 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
616 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
617 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
bbf8eed1 618 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) |
225c7b1f
RD		 619 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
620 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
621 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
6a775e2b 622 (1ull << IB_USER_VERBS_CMD_QUERY_QP) |
225c7b1f
RD		 623 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
624 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) |
625 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) |
626 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
627 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
65541cb7 628 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) |
225c7b1f
RD		 629 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ);
630
631 ibdev->ib_dev.query_device = mlx4_ib_query_device;
632 ibdev->ib_dev.query_port = mlx4_ib_query_port;
633 ibdev->ib_dev.query_gid = mlx4_ib_query_gid;
634 ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey;
635 ibdev->ib_dev.modify_device = mlx4_ib_modify_device;
636 ibdev->ib_dev.modify_port = mlx4_ib_modify_port;
637 ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext;
638 ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext;
639 ibdev->ib_dev.mmap = mlx4_ib_mmap;
640 ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd;
641 ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd;
642 ibdev->ib_dev.create_ah = mlx4_ib_create_ah;
643 ibdev->ib_dev.query_ah = mlx4_ib_query_ah;
644 ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah;
645 ibdev->ib_dev.create_srq = mlx4_ib_create_srq;
646 ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq;
65541cb7 647 ibdev->ib_dev.query_srq = mlx4_ib_query_srq;
225c7b1f
RD		 648 ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq;
649 ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv;
650 ibdev->ib_dev.create_qp = mlx4_ib_create_qp;
651 ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp;
6a775e2b 652 ibdev->ib_dev.query_qp = mlx4_ib_query_qp;
225c7b1f
RD		 653 ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp;
654 ibdev->ib_dev.post_send = mlx4_ib_post_send;
655 ibdev->ib_dev.post_recv = mlx4_ib_post_recv;
656 ibdev->ib_dev.create_cq = mlx4_ib_create_cq;
3fdcb97f 657 ibdev->ib_dev.modify_cq = mlx4_ib_modify_cq;
bbf8eed1 658 ibdev->ib_dev.resize_cq = mlx4_ib_resize_cq;
225c7b1f
RD		 659 ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq;
660 ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq;
661 ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq;
662 ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr;
663 ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr;
664 ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr;
95d04f07
RD		 665 ibdev->ib_dev.alloc_fast_reg_mr = mlx4_ib_alloc_fast_reg_mr;
666 ibdev->ib_dev.alloc_fast_reg_page_list = mlx4_ib_alloc_fast_reg_page_list;
667 ibdev->ib_dev.free_fast_reg_page_list = mlx4_ib_free_fast_reg_page_list;
225c7b1f
RD		 668 ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach;
669 ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach;
670 ibdev->ib_dev.process_mad = mlx4_ib_process_mad;
671
8ad11fb6
JM		 672 ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc;
673 ibdev->ib_dev.map_phys_fmr = mlx4_ib_map_phys_fmr;
674 ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr;
675 ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc;
676
225c7b1f
RD		 677 if (init_node_data(ibdev))
678 goto err_map;
679
680 spin_lock_init(&ibdev->sm_lock);
681 mutex_init(&ibdev->cap_mask_mutex);
682
9a6edb60 683 if (ib_register_device(&ibdev->ib_dev, NULL))
225c7b1f
RD		 684 goto err_map;
685
686 if (mlx4_ib_mad_init(ibdev))
687 goto err_reg;
688
cd9281d8 689 for (i = 0; i < ARRAY_SIZE(mlx4_class_attributes); ++i) {
f4e91eb4
TJ		 690 if (device_create_file(&ibdev->ib_dev.dev,
691 mlx4_class_attributes[i]))
cd9281d8
JM		 692 goto err_reg;
693 }
694
3b4a8cd5
JM		 695 ibdev->ib_active = true;
696
225c7b1f
RD		 697 return ibdev;
698
699err_reg:
700 ib_unregister_device(&ibdev->ib_dev);
701
702err_map:
703 iounmap(ibdev->uar_map);
704
705err_uar:
706 mlx4_uar_free(dev, &ibdev->priv_uar);
707
708err_pd:
709 mlx4_pd_free(dev, ibdev->priv_pdn);
710
711err_dealloc:
712 ib_dealloc_device(&ibdev->ib_dev);
713
714 return NULL;
715}
716
717static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
718{
719 struct mlx4_ib_dev *ibdev = ibdev_ptr;
720 int p;
721
a6a47771
YP		 722 mlx4_ib_mad_cleanup(ibdev);
723 ib_unregister_device(&ibdev->ib_dev);
724
7ff93f8b 725 for (p = 1; p <= ibdev->num_ports; ++p)
225c7b1f
RD		 726 mlx4_CLOSE_PORT(dev, p);
727
225c7b1f
RD		 728 iounmap(ibdev->uar_map);
729 mlx4_uar_free(dev, &ibdev->priv_uar);
730 mlx4_pd_free(dev, ibdev->priv_pdn);
731 ib_dealloc_device(&ibdev->ib_dev);
732}
733
734static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
37608eea 735 enum mlx4_dev_event event, int port)
225c7b1f
RD		 736{
737 struct ib_event ibev;
7ff93f8b
YP		 738 struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr);
739
740 if (port > ibdev->num_ports)
741 return;
225c7b1f
RD		 742
743 switch (event) {
37608eea
RD		 744 case MLX4_DEV_EVENT_PORT_UP:
745 ibev.event = IB_EVENT_PORT_ACTIVE;
225c7b1f
RD		 746 break;
747
37608eea
RD		 748 case MLX4_DEV_EVENT_PORT_DOWN:
749 ibev.event = IB_EVENT_PORT_ERR;
750 break;
751
752 case MLX4_DEV_EVENT_CATASTROPHIC_ERROR:
3b4a8cd5 753 ibdev->ib_active = false;
225c7b1f
RD		 754 ibev.event = IB_EVENT_DEVICE_FATAL;
755 break;
756
757 default:
758 return;
759 }
760
761 ibev.device = ibdev_ptr;
762 ibev.element.port_num = port;
763
764 ib_dispatch_event(&ibev);
765}
766
767static struct mlx4_interface mlx4_ib_interface = {
768 .add = mlx4_ib_add,
769 .remove = mlx4_ib_remove,
770 .event = mlx4_ib_event
771};
772
773static int __init mlx4_ib_init(void)
774{
775 return mlx4_register_interface(&mlx4_ib_interface);
776}
777
778static void __exit mlx4_ib_cleanup(void)
779{
780 mlx4_unregister_interface(&mlx4_ib_interface);
781}
782
783module_init(mlx4_ib_init);
784module_exit(mlx4_ib_cleanup);
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