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IPoIB: Add LSO support
[net-next-2.6.git] / drivers / infiniband / hw / mlx4 / main.c
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225c7b1f
RD		 1/*
2 * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33#include <linux/module.h>
34#include <linux/init.h>
35#include <linux/errno.h>
36
37#include <rdma/ib_smi.h>
38#include <rdma/ib_user_verbs.h>
39
40#include <linux/mlx4/driver.h>
41#include <linux/mlx4/cmd.h>
42
43#include "mlx4_ib.h"
44#include "user.h"
45
46#define DRV_NAME "mlx4_ib"
47#define DRV_VERSION "0.01"
48#define DRV_RELDATE "May 1, 2006"
49
50MODULE_AUTHOR("Roland Dreier");
51MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver");
52MODULE_LICENSE("Dual BSD/GPL");
53MODULE_VERSION(DRV_VERSION);
54
68f3948d 55static const char mlx4_ib_version[] =
225c7b1f
RD		 56 DRV_NAME ": Mellanox ConnectX InfiniBand driver v"
57 DRV_VERSION " (" DRV_RELDATE ")\n";
58
59static void init_query_mad(struct ib_smp *mad)
60{
61 mad->base_version = 1;
62 mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
63 mad->class_version = 1;
64 mad->method = IB_MGMT_METHOD_GET;
65}
66
67static int mlx4_ib_query_device(struct ib_device *ibdev,
68 struct ib_device_attr *props)
69{
70 struct mlx4_ib_dev *dev = to_mdev(ibdev);
71 struct ib_smp *in_mad = NULL;
72 struct ib_smp *out_mad = NULL;
73 int err = -ENOMEM;
74
75 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
76 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
77 if (!in_mad || !out_mad)
78 goto out;
79
80 init_query_mad(in_mad);
81 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
82
83 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad, out_mad);
84 if (err)
85 goto out;
86
87 memset(props, 0, sizeof *props);
88
89 props->fw_ver = dev->dev->caps.fw_ver;
90 props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
91 IB_DEVICE_PORT_ACTIVE_EVENT |
92 IB_DEVICE_SYS_IMAGE_GUID |
93 IB_DEVICE_RC_RNR_NAK_GEN;
94 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR)
95 props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
96 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR)
97 props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
98 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM)
99 props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
100 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT)
101 props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
8ff095ec
EC		 102 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
103 props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
225c7b1f
RD		 104
105 props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) &
106 0xffffff;
107 props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30));
108 props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32));
109 memcpy(&props->sys_image_guid, out_mad->data + 4, 8);
110
111 props->max_mr_size = ~0ull;
112 props->page_size_cap = dev->dev->caps.page_size_cap;
113 props->max_qp = dev->dev->caps.num_qps - dev->dev->caps.reserved_qps;
114 props->max_qp_wr = dev->dev->caps.max_wqes;
115 props->max_sge = min(dev->dev->caps.max_sq_sg,
116 dev->dev->caps.max_rq_sg);
117 props->max_cq = dev->dev->caps.num_cqs - dev->dev->caps.reserved_cqs;
118 props->max_cqe = dev->dev->caps.max_cqes;
119 props->max_mr = dev->dev->caps.num_mpts - dev->dev->caps.reserved_mrws;
120 props->max_pd = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds;
121 props->max_qp_rd_atom = dev->dev->caps.max_qp_dest_rdma;
122 props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma;
123 props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp;
124 props->max_srq = dev->dev->caps.num_srqs - dev->dev->caps.reserved_srqs;
c8681f14 125 props->max_srq_wr = dev->dev->caps.max_srq_wqes - 1;
225c7b1f
RD		 126 props->max_srq_sge = dev->dev->caps.max_srq_sge;
127 props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay;
128 props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ?
129 IB_ATOMIC_HCA : IB_ATOMIC_NONE;
5ae2a7a8 130 props->max_pkeys = dev->dev->caps.pkey_table_len[1];
225c7b1f
RD		 131 props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms;
132 props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm;
133 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
134 props->max_mcast_grp;
135 props->max_map_per_fmr = (1 << (32 - ilog2(dev->dev->caps.num_mpts))) - 1;
136
137out:
138 kfree(in_mad);
139 kfree(out_mad);
140
141 return err;
142}
143
144static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
145 struct ib_port_attr *props)
146{
147 struct ib_smp *in_mad = NULL;
148 struct ib_smp *out_mad = NULL;
149 int err = -ENOMEM;
150
151 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
152 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
153 if (!in_mad || !out_mad)
154 goto out;
155
156 memset(props, 0, sizeof *props);
157
158 init_query_mad(in_mad);
159 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
160 in_mad->attr_mod = cpu_to_be32(port);
161
162 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
163 if (err)
164 goto out;
165
166 props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16));
167 props->lmc = out_mad->data[34] & 0x7;
168 props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18));
169 props->sm_sl = out_mad->data[36] & 0xf;
170 props->state = out_mad->data[32] & 0xf;
171 props->phys_state = out_mad->data[33] >> 4;
172 props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20));
5ae2a7a8 173 props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port];
149983af 174 props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz;
5ae2a7a8 175 props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port];
225c7b1f
RD		 176 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46));
177 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48));
178 props->active_width = out_mad->data[31] & 0xf;
179 props->active_speed = out_mad->data[35] >> 4;
180 props->max_mtu = out_mad->data[41] & 0xf;
181 props->active_mtu = out_mad->data[36] >> 4;
182 props->subnet_timeout = out_mad->data[51] & 0x1f;
183 props->max_vl_num = out_mad->data[37] >> 4;
184 props->init_type_reply = out_mad->data[41] >> 4;
185
186out:
187 kfree(in_mad);
188 kfree(out_mad);
189
190 return err;
191}
192
193static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
194 union ib_gid *gid)
195{
196 struct ib_smp *in_mad = NULL;
197 struct ib_smp *out_mad = NULL;
198 int err = -ENOMEM;
199
200 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
201 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
202 if (!in_mad || !out_mad)
203 goto out;
204
205 init_query_mad(in_mad);
206 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
207 in_mad->attr_mod = cpu_to_be32(port);
208
209 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
210 if (err)
211 goto out;
212
213 memcpy(gid->raw, out_mad->data + 8, 8);
214
215 init_query_mad(in_mad);
216 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO;
217 in_mad->attr_mod = cpu_to_be32(index / 8);
218
219 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
220 if (err)
221 goto out;
222
223 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
224
225out:
226 kfree(in_mad);
227 kfree(out_mad);
228 return err;
229}
230
231static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
232 u16 *pkey)
233{
234 struct ib_smp *in_mad = NULL;
235 struct ib_smp *out_mad = NULL;
236 int err = -ENOMEM;
237
238 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
239 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
240 if (!in_mad || !out_mad)
241 goto out;
242
243 init_query_mad(in_mad);
244 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE;
245 in_mad->attr_mod = cpu_to_be32(index / 32);
246
247 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
248 if (err)
249 goto out;
250
251 *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]);
252
253out:
254 kfree(in_mad);
255 kfree(out_mad);
256 return err;
257}
258
259static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask,
260 struct ib_device_modify *props)
261{
262 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
263 return -EOPNOTSUPP;
264
265 if (mask & IB_DEVICE_MODIFY_NODE_DESC) {
266 spin_lock(&to_mdev(ibdev)->sm_lock);
267 memcpy(ibdev->node_desc, props->node_desc, 64);
268 spin_unlock(&to_mdev(ibdev)->sm_lock);
269 }
270
271 return 0;
272}
273
274static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols,
275 u32 cap_mask)
276{
277 struct mlx4_cmd_mailbox *mailbox;
278 int err;
279
280 mailbox = mlx4_alloc_cmd_mailbox(dev->dev);
281 if (IS_ERR(mailbox))
282 return PTR_ERR(mailbox);
283
284 memset(mailbox->buf, 0, 256);
5ae2a7a8
RD		 285
286 if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
287 *(u8 *) mailbox->buf = !!reset_qkey_viols << 6;
288 ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask);
289 } else {
290 ((u8 *) mailbox->buf)[3] = !!reset_qkey_viols;
291 ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask);
292 }
225c7b1f
RD		 293
294 err = mlx4_cmd(dev->dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT,
295 MLX4_CMD_TIME_CLASS_B);
296
297 mlx4_free_cmd_mailbox(dev->dev, mailbox);
298 return err;
299}
300
301static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask,
302 struct ib_port_modify *props)
303{
304 struct ib_port_attr attr;
305 u32 cap_mask;
306 int err;
307
308 mutex_lock(&to_mdev(ibdev)->cap_mask_mutex);
309
310 err = mlx4_ib_query_port(ibdev, port, &attr);
311 if (err)
312 goto out;
313
314 cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
315 ~props->clr_port_cap_mask;
316
317 err = mlx4_SET_PORT(to_mdev(ibdev), port,
318 !!(mask & IB_PORT_RESET_QKEY_CNTR),
319 cap_mask);
320
321out:
322 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
323 return err;
324}
325
326static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev,
327 struct ib_udata *udata)
328{
329 struct mlx4_ib_dev *dev = to_mdev(ibdev);
330 struct mlx4_ib_ucontext *context;
331 struct mlx4_ib_alloc_ucontext_resp resp;
332 int err;
333
334 resp.qp_tab_size = dev->dev->caps.num_qps;
335 resp.bf_reg_size = dev->dev->caps.bf_reg_size;
336 resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
337
338 context = kmalloc(sizeof *context, GFP_KERNEL);
339 if (!context)
340 return ERR_PTR(-ENOMEM);
341
342 err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar);
343 if (err) {
344 kfree(context);
345 return ERR_PTR(err);
346 }
347
348 INIT_LIST_HEAD(&context->db_page_list);
349 mutex_init(&context->db_page_mutex);
350
351 err = ib_copy_to_udata(udata, &resp, sizeof resp);
352 if (err) {
353 mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar);
354 kfree(context);
355 return ERR_PTR(-EFAULT);
356 }
357
358 return &context->ibucontext;
359}
360
361static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
362{
363 struct mlx4_ib_ucontext *context = to_mucontext(ibcontext);
364
365 mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar);
366 kfree(context);
367
368 return 0;
369}
370
371static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
372{
373 struct mlx4_ib_dev *dev = to_mdev(context->device);
374
375 if (vma->vm_end - vma->vm_start != PAGE_SIZE)
376 return -EINVAL;
377
378 if (vma->vm_pgoff == 0) {
379 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
380
381 if (io_remap_pfn_range(vma, vma->vm_start,
382 to_mucontext(context)->uar.pfn,
383 PAGE_SIZE, vma->vm_page_prot))
384 return -EAGAIN;
385 } else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) {
386 /* FIXME want pgprot_writecombine() for BlueFlame pages */
387 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
388
389 if (io_remap_pfn_range(vma, vma->vm_start,
390 to_mucontext(context)->uar.pfn +
391 dev->dev->caps.num_uars,
392 PAGE_SIZE, vma->vm_page_prot))
393 return -EAGAIN;
394 } else
395 return -EINVAL;
396
397 return 0;
398}
399
400static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev,
401 struct ib_ucontext *context,
402 struct ib_udata *udata)
403{
404 struct mlx4_ib_pd *pd;
405 int err;
406
407 pd = kmalloc(sizeof *pd, GFP_KERNEL);
408 if (!pd)
409 return ERR_PTR(-ENOMEM);
410
411 err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn);
412 if (err) {
413 kfree(pd);
414 return ERR_PTR(err);
415 }
416
417 if (context)
418 if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) {
419 mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn);
420 kfree(pd);
421 return ERR_PTR(-EFAULT);
422 }
423
424 return &pd->ibpd;
425}
426
427static int mlx4_ib_dealloc_pd(struct ib_pd *pd)
428{
429 mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn);
430 kfree(pd);
431
432 return 0;
433}
434
435static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
436{
437 return mlx4_multicast_attach(to_mdev(ibqp->device)->dev,
438 &to_mqp(ibqp)->mqp, gid->raw);
439}
440
441static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
442{
443 return mlx4_multicast_detach(to_mdev(ibqp->device)->dev,
444 &to_mqp(ibqp)->mqp, gid->raw);
445}
446
447static int init_node_data(struct mlx4_ib_dev *dev)
448{
449 struct ib_smp *in_mad = NULL;
450 struct ib_smp *out_mad = NULL;
451 int err = -ENOMEM;
452
453 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
454 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
455 if (!in_mad || !out_mad)
456 goto out;
457
458 init_query_mad(in_mad);
459 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
460
461 err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
462 if (err)
463 goto out;
464
465 memcpy(dev->ib_dev.node_desc, out_mad->data, 64);
466
467 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
468
469 err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
470 if (err)
471 goto out;
472
893da759 473 dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32));
225c7b1f
RD		 474 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
475
476out:
477 kfree(in_mad);
478 kfree(out_mad);
479 return err;
480}
481
cd9281d8
JM		 482static ssize_t show_hca(struct class_device *cdev, char *buf)
483{
484 struct mlx4_ib_dev *dev = container_of(cdev, struct mlx4_ib_dev, ib_dev.class_dev);
485 return sprintf(buf, "MT%d\n", dev->dev->pdev->device);
486}
487
488static ssize_t show_fw_ver(struct class_device *cdev, char *buf)
489{
490 struct mlx4_ib_dev *dev = container_of(cdev, struct mlx4_ib_dev, ib_dev.class_dev);
491 return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32),
492 (int) (dev->dev->caps.fw_ver >> 16) & 0xffff,
493 (int) dev->dev->caps.fw_ver & 0xffff);
494}
495
496static ssize_t show_rev(struct class_device *cdev, char *buf)
497{
498 struct mlx4_ib_dev *dev = container_of(cdev, struct mlx4_ib_dev, ib_dev.class_dev);
499 return sprintf(buf, "%x\n", dev->dev->rev_id);
500}
501
502static ssize_t show_board(struct class_device *cdev, char *buf)
503{
504 struct mlx4_ib_dev *dev = container_of(cdev, struct mlx4_ib_dev, ib_dev.class_dev);
505 return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN, dev->dev->board_id);
506}
507
508static CLASS_DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
509static CLASS_DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
510static CLASS_DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
511static CLASS_DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
512
513static struct class_device_attribute *mlx4_class_attributes[] = {
514 &class_device_attr_hw_rev,
515 &class_device_attr_fw_ver,
516 &class_device_attr_hca_type,
517 &class_device_attr_board_id
518};
519
225c7b1f
RD		 520static void *mlx4_ib_add(struct mlx4_dev *dev)
521{
68f3948d 522 static int mlx4_ib_version_printed;
225c7b1f 523 struct mlx4_ib_dev *ibdev;
cd9281d8 524 int i;
225c7b1f 525
68f3948d
RD		 526
527 if (!mlx4_ib_version_printed) {
528 printk(KERN_INFO "%s", mlx4_ib_version);
529 ++mlx4_ib_version_printed;
530 }
531
225c7b1f
RD		 532 ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev);
533 if (!ibdev) {
534 dev_err(&dev->pdev->dev, "Device struct alloc failed\n");
535 return NULL;
536 }
537
538 if (mlx4_pd_alloc(dev, &ibdev->priv_pdn))
539 goto err_dealloc;
540
541 if (mlx4_uar_alloc(dev, &ibdev->priv_uar))
542 goto err_pd;
543
544 ibdev->uar_map = ioremap(ibdev->priv_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
545 if (!ibdev->uar_map)
546 goto err_uar;
26c6bc7b 547 MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock);
225c7b1f
RD		 548
549 INIT_LIST_HEAD(&ibdev->pgdir_list);
550 mutex_init(&ibdev->pgdir_mutex);
551
552 ibdev->dev = dev;
553
554 strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX);
555 ibdev->ib_dev.owner = THIS_MODULE;
556 ibdev->ib_dev.node_type = RDMA_NODE_IB_CA;
557 ibdev->ib_dev.phys_port_cnt = dev->caps.num_ports;
558 ibdev->ib_dev.num_comp_vectors = 1;
559 ibdev->ib_dev.dma_device = &dev->pdev->dev;
560
561 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION;
562 ibdev->ib_dev.uverbs_cmd_mask =
563 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
564 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
565 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
566 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
567 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
568 (1ull << IB_USER_VERBS_CMD_REG_MR) |
569 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
570 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
571 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
572 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
573 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
574 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
6a775e2b 575 (1ull << IB_USER_VERBS_CMD_QUERY_QP) |
225c7b1f
RD		 576 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
577 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) |
578 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) |
579 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
580 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
65541cb7 581 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) |
225c7b1f
RD		 582 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ);
583
584 ibdev->ib_dev.query_device = mlx4_ib_query_device;
585 ibdev->ib_dev.query_port = mlx4_ib_query_port;
586 ibdev->ib_dev.query_gid = mlx4_ib_query_gid;
587 ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey;
588 ibdev->ib_dev.modify_device = mlx4_ib_modify_device;
589 ibdev->ib_dev.modify_port = mlx4_ib_modify_port;
590 ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext;
591 ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext;
592 ibdev->ib_dev.mmap = mlx4_ib_mmap;
593 ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd;
594 ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd;
595 ibdev->ib_dev.create_ah = mlx4_ib_create_ah;
596 ibdev->ib_dev.query_ah = mlx4_ib_query_ah;
597 ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah;
598 ibdev->ib_dev.create_srq = mlx4_ib_create_srq;
599 ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq;
65541cb7 600 ibdev->ib_dev.query_srq = mlx4_ib_query_srq;
225c7b1f
RD		 601 ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq;
602 ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv;
603 ibdev->ib_dev.create_qp = mlx4_ib_create_qp;
604 ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp;
6a775e2b 605 ibdev->ib_dev.query_qp = mlx4_ib_query_qp;
225c7b1f
RD		 606 ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp;
607 ibdev->ib_dev.post_send = mlx4_ib_post_send;
608 ibdev->ib_dev.post_recv = mlx4_ib_post_recv;
609 ibdev->ib_dev.create_cq = mlx4_ib_create_cq;
610 ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq;
611 ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq;
612 ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq;
613 ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr;
614 ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr;
615 ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr;
616 ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach;
617 ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach;
618 ibdev->ib_dev.process_mad = mlx4_ib_process_mad;
619
8ad11fb6
JM		 620 ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc;
621 ibdev->ib_dev.map_phys_fmr = mlx4_ib_map_phys_fmr;
622 ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr;
623 ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc;
624
225c7b1f
RD		 625 if (init_node_data(ibdev))
626 goto err_map;
627
628 spin_lock_init(&ibdev->sm_lock);
629 mutex_init(&ibdev->cap_mask_mutex);
630
631 if (ib_register_device(&ibdev->ib_dev))
632 goto err_map;
633
634 if (mlx4_ib_mad_init(ibdev))
635 goto err_reg;
636
cd9281d8
JM		 637 for (i = 0; i < ARRAY_SIZE(mlx4_class_attributes); ++i) {
638 if (class_device_create_file(&ibdev->ib_dev.class_dev,
639 mlx4_class_attributes[i]))
640 goto err_reg;
641 }
642
225c7b1f
RD		 643 return ibdev;
644
645err_reg:
646 ib_unregister_device(&ibdev->ib_dev);
647
648err_map:
649 iounmap(ibdev->uar_map);
650
651err_uar:
652 mlx4_uar_free(dev, &ibdev->priv_uar);
653
654err_pd:
655 mlx4_pd_free(dev, ibdev->priv_pdn);
656
657err_dealloc:
658 ib_dealloc_device(&ibdev->ib_dev);
659
660 return NULL;
661}
662
663static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
664{
665 struct mlx4_ib_dev *ibdev = ibdev_ptr;
666 int p;
667
668 for (p = 1; p <= dev->caps.num_ports; ++p)
669 mlx4_CLOSE_PORT(dev, p);
670
671 mlx4_ib_mad_cleanup(ibdev);
672 ib_unregister_device(&ibdev->ib_dev);
673 iounmap(ibdev->uar_map);
674 mlx4_uar_free(dev, &ibdev->priv_uar);
675 mlx4_pd_free(dev, ibdev->priv_pdn);
676 ib_dealloc_device(&ibdev->ib_dev);
677}
678
679static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
37608eea 680 enum mlx4_dev_event event, int port)
225c7b1f
RD		 681{
682 struct ib_event ibev;
683
684 switch (event) {
37608eea
RD		 685 case MLX4_DEV_EVENT_PORT_UP:
686 ibev.event = IB_EVENT_PORT_ACTIVE;
225c7b1f
RD		 687 break;
688
37608eea
RD		 689 case MLX4_DEV_EVENT_PORT_DOWN:
690 ibev.event = IB_EVENT_PORT_ERR;
691 break;
692
693 case MLX4_DEV_EVENT_CATASTROPHIC_ERROR:
225c7b1f
RD		 694 ibev.event = IB_EVENT_DEVICE_FATAL;
695 break;
696
697 default:
698 return;
699 }
700
701 ibev.device = ibdev_ptr;
702 ibev.element.port_num = port;
703
704 ib_dispatch_event(&ibev);
705}
706
707static struct mlx4_interface mlx4_ib_interface = {
708 .add = mlx4_ib_add,
709 .remove = mlx4_ib_remove,
710 .event = mlx4_ib_event
711};
712
713static int __init mlx4_ib_init(void)
714{
715 return mlx4_register_interface(&mlx4_ib_interface);
716}
717
718static void __exit mlx4_ib_cleanup(void)
719{
720 mlx4_unregister_interface(&mlx4_ib_interface);
721}
722
723module_init(mlx4_ib_init);
724module_exit(mlx4_ib_cleanup);
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