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IB/usnic: Remove unused DMA attributes
[linux-2.6-block.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 37#include <linux/errno.h>
fa417f7b
EC		 38#include <linux/netdevice.h>
39#include <linux/inetdevice.h>
40#include <linux/rtnetlink.h>
4c3eb3ca 41#include <linux/if_vlan.h>
d487ee77
MS		 42#include <net/ipv6.h>
43#include <net/addrconf.h>
09d4d087 44#include <net/devlink.h>
225c7b1f
RD		 45
46#include <rdma/ib_smi.h>
47#include <rdma/ib_user_verbs.h>
fa417f7b 48#include <rdma/ib_addr.h>
e26be1bf
MS		 49#include <rdma/ib_cache.h>
50
51#include <net/bonding.h>
225c7b1f
RD		 52
53#include <linux/mlx4/driver.h>
54#include <linux/mlx4/cmd.h>
9433c188 55#include <linux/mlx4/qp.h>
225c7b1f
RD		 56
57#include "mlx4_ib.h"
58#include "user.h"
59
b1d8eb5a 60#define DRV_NAME MLX4_IB_DRV_NAME
169a1d85
AV		 61#define DRV_VERSION "2.2-1"
62#define DRV_RELDATE "Feb 2014"
225c7b1f 63
f77c0162 64#define MLX4_IB_FLOW_MAX_PRIO 0xFFF
a37a1a42 65#define MLX4_IB_FLOW_QPN_MASK 0xFFFFFF
50e2ec91 66#define MLX4_IB_CARD_REV_A0 0xA0
f77c0162 67
225c7b1f
RD		 68MODULE_AUTHOR("Roland Dreier");
69MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver");
70MODULE_LICENSE("Dual BSD/GPL");
71MODULE_VERSION(DRV_VERSION);
72
56c1d233 73int mlx4_ib_sm_guid_assign = 0;
a0c64a17 74module_param_named(sm_guid_assign, mlx4_ib_sm_guid_assign, int, 0444);
56c1d233 75MODULE_PARM_DESC(sm_guid_assign, "Enable SM alias_GUID assignment if sm_guid_assign > 0 (Default: 0)");
a0c64a17 76
68f3948d 77static const char mlx4_ib_version[] =
225c7b1f
RD		 78 DRV_NAME ": Mellanox ConnectX InfiniBand driver v"
79 DRV_VERSION " (" DRV_RELDATE ")\n";
80
3806d08c
JM		 81static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init);
82
fa417f7b
EC		 83static struct workqueue_struct *wq;
84
225c7b1f
RD		 85static void init_query_mad(struct ib_smp *mad)
86{
87 mad->base_version = 1;
88 mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
89 mad->class_version = 1;
90 mad->method = IB_MGMT_METHOD_GET;
91}
92
f77c0162
HHZ		 93static int check_flow_steering_support(struct mlx4_dev *dev)
94{
0a9b7d59 95 int eth_num_ports = 0;
f77c0162 96 int ib_num_ports = 0;
f77c0162 97
0a9b7d59
MB		 98 int dmfs = dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED;
99
100 if (dmfs) {
101 int i;
102 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH)
103 eth_num_ports++;
104 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
105 ib_num_ports++;
106 dmfs &= (!ib_num_ports ||
107 (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_IPOIB)) &&
108 (!eth_num_ports ||
109 (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN));
110 if (ib_num_ports && mlx4_is_mfunc(dev)) {
111 pr_warn("Device managed flow steering is unavailable for IB port in multifunction env.\n");
112 dmfs = 0;
f77c0162 113 }
f77c0162 114 }
0a9b7d59 115 return dmfs;
f77c0162
HHZ		 116}
117
3dec4878
JM		 118static int num_ib_ports(struct mlx4_dev *dev)
119{
120 int ib_ports = 0;
121 int i;
122
123 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
124 ib_ports++;
125
126 return ib_ports;
127}
128
e26be1bf
MS		 129static struct net_device *mlx4_ib_get_netdev(struct ib_device *device, u8 port_num)
130{
131 struct mlx4_ib_dev *ibdev = to_mdev(device);
132 struct net_device *dev;
133
134 rcu_read_lock();
135 dev = mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port_num);
136
137 if (dev) {
138 if (mlx4_is_bonded(ibdev->dev)) {
139 struct net_device *upper = NULL;
140
141 upper = netdev_master_upper_dev_get_rcu(dev);
142 if (upper) {
143 struct net_device *active;
144
145 active = bond_option_active_slave_get_rcu(netdev_priv(upper));
146 if (active)
147 dev = active;
148 }
149 }
150 }
151 if (dev)
152 dev_hold(dev);
153
154 rcu_read_unlock();
155 return dev;
156}
157
7e57b85c
MS		 158static int mlx4_ib_update_gids_v1(struct gid_entry *gids,
159 struct mlx4_ib_dev *ibdev,
160 u8 port_num)
e26be1bf
MS		 161{
162 struct mlx4_cmd_mailbox *mailbox;
163 int err;
164 struct mlx4_dev *dev = ibdev->dev;
165 int i;
166 union ib_gid *gid_tbl;
167
168 mailbox = mlx4_alloc_cmd_mailbox(dev);
169 if (IS_ERR(mailbox))
170 return -ENOMEM;
171
172 gid_tbl = mailbox->buf;
173
174 for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i)
175 memcpy(&gid_tbl[i], &gids[i].gid, sizeof(union ib_gid));
176
177 err = mlx4_cmd(dev, mailbox->dma,
178 MLX4_SET_PORT_GID_TABLE << 8 | port_num,
179 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
180 MLX4_CMD_WRAPPED);
181 if (mlx4_is_bonded(dev))
182 err += mlx4_cmd(dev, mailbox->dma,
183 MLX4_SET_PORT_GID_TABLE << 8 | 2,
184 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
185 MLX4_CMD_WRAPPED);
186
187 mlx4_free_cmd_mailbox(dev, mailbox);
188 return err;
189}
190
7e57b85c
MS		 191static int mlx4_ib_update_gids_v1_v2(struct gid_entry *gids,
192 struct mlx4_ib_dev *ibdev,
193 u8 port_num)
194{
195 struct mlx4_cmd_mailbox *mailbox;
196 int err;
197 struct mlx4_dev *dev = ibdev->dev;
198 int i;
199 struct {
200 union ib_gid gid;
201 __be32 rsrvd1[2];
202 __be16 rsrvd2;
203 u8 type;
204 u8 version;
205 __be32 rsrvd3;
206 } *gid_tbl;
207
208 mailbox = mlx4_alloc_cmd_mailbox(dev);
209 if (IS_ERR(mailbox))
210 return -ENOMEM;
211
212 gid_tbl = mailbox->buf;
213 for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i) {
214 memcpy(&gid_tbl[i].gid, &gids[i].gid, sizeof(union ib_gid));
215 if (gids[i].gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP) {
216 gid_tbl[i].version = 2;
217 if (!ipv6_addr_v4mapped((struct in6_addr *)&gids[i].gid))
218 gid_tbl[i].type = 1;
219 else
220 memset(&gid_tbl[i].gid, 0, 12);
221 }
222 }
223
224 err = mlx4_cmd(dev, mailbox->dma,
225 MLX4_SET_PORT_ROCE_ADDR << 8 | port_num,
226 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
227 MLX4_CMD_WRAPPED);
228 if (mlx4_is_bonded(dev))
229 err += mlx4_cmd(dev, mailbox->dma,
230 MLX4_SET_PORT_ROCE_ADDR << 8 | 2,
231 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
232 MLX4_CMD_WRAPPED);
233
234 mlx4_free_cmd_mailbox(dev, mailbox);
235 return err;
236}
237
238static int mlx4_ib_update_gids(struct gid_entry *gids,
239 struct mlx4_ib_dev *ibdev,
240 u8 port_num)
241{
242 if (ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2)
243 return mlx4_ib_update_gids_v1_v2(gids, ibdev, port_num);
244
245 return mlx4_ib_update_gids_v1(gids, ibdev, port_num);
246}
247
e26be1bf
MS		 248static int mlx4_ib_add_gid(struct ib_device *device,
249 u8 port_num,
250 unsigned int index,
251 const union ib_gid *gid,
252 const struct ib_gid_attr *attr,
253 void **context)
254{
255 struct mlx4_ib_dev *ibdev = to_mdev(device);
256 struct mlx4_ib_iboe *iboe = &ibdev->iboe;
257 struct mlx4_port_gid_table *port_gid_table;
258 int free = -1, found = -1;
259 int ret = 0;
260 int hw_update = 0;
261 int i;
262 struct gid_entry *gids = NULL;
263
264 if (!rdma_cap_roce_gid_table(device, port_num))
265 return -EINVAL;
266
267 if (port_num > MLX4_MAX_PORTS)
268 return -EINVAL;
269
270 if (!context)
271 return -EINVAL;
272
273 port_gid_table = &iboe->gids[port_num - 1];
274 spin_lock_bh(&iboe->lock);
275 for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i) {
b699a859
MS		 276 if (!memcmp(&port_gid_table->gids[i].gid, gid, sizeof(*gid)) &&
277 (port_gid_table->gids[i].gid_type == attr->gid_type)) {
e26be1bf
MS		 278 found = i;
279 break;
280 }
281 if (free < 0 && !memcmp(&port_gid_table->gids[i].gid, &zgid, sizeof(*gid)))
282 free = i; /* HW has space */
283 }
284
285 if (found < 0) {
286 if (free < 0) {
287 ret = -ENOSPC;
288 } else {
289 port_gid_table->gids[free].ctx = kmalloc(sizeof(*port_gid_table->gids[free].ctx), GFP_ATOMIC);
290 if (!port_gid_table->gids[free].ctx) {
291 ret = -ENOMEM;
292 } else {
293 *context = port_gid_table->gids[free].ctx;
294 memcpy(&port_gid_table->gids[free].gid, gid, sizeof(*gid));
b699a859 295 port_gid_table->gids[free].gid_type = attr->gid_type;
e26be1bf
MS		 296 port_gid_table->gids[free].ctx->real_index = free;
297 port_gid_table->gids[free].ctx->refcount = 1;
298 hw_update = 1;
299 }
300 }
301 } else {
302 struct gid_cache_context *ctx = port_gid_table->gids[found].ctx;
303 *context = ctx;
304 ctx->refcount++;
305 }
306 if (!ret && hw_update) {
307 gids = kmalloc(sizeof(*gids) * MLX4_MAX_PORT_GIDS, GFP_ATOMIC);
308 if (!gids) {
309 ret = -ENOMEM;
310 } else {
b699a859 311 for (i = 0; i < MLX4_MAX_PORT_GIDS; i++) {
e26be1bf 312 memcpy(&gids[i].gid, &port_gid_table->gids[i].gid, sizeof(union ib_gid));
b699a859
MS		 313 gids[i].gid_type = port_gid_table->gids[i].gid_type;
314 }
e26be1bf
MS		 315 }
316 }
317 spin_unlock_bh(&iboe->lock);
318
319 if (!ret && hw_update) {
320 ret = mlx4_ib_update_gids(gids, ibdev, port_num);
321 kfree(gids);
322 }
323
324 return ret;
325}
326
327static int mlx4_ib_del_gid(struct ib_device *device,
328 u8 port_num,
329 unsigned int index,
330 void **context)
331{
332 struct gid_cache_context *ctx = *context;
333 struct mlx4_ib_dev *ibdev = to_mdev(device);
334 struct mlx4_ib_iboe *iboe = &ibdev->iboe;
335 struct mlx4_port_gid_table *port_gid_table;
336 int ret = 0;
337 int hw_update = 0;
338 struct gid_entry *gids = NULL;
339
340 if (!rdma_cap_roce_gid_table(device, port_num))
341 return -EINVAL;
342
343 if (port_num > MLX4_MAX_PORTS)
344 return -EINVAL;
345
346 port_gid_table = &iboe->gids[port_num - 1];
347 spin_lock_bh(&iboe->lock);
348 if (ctx) {
349 ctx->refcount--;
350 if (!ctx->refcount) {
351 unsigned int real_index = ctx->real_index;
352
353 memcpy(&port_gid_table->gids[real_index].gid, &zgid, sizeof(zgid));
354 kfree(port_gid_table->gids[real_index].ctx);
355 port_gid_table->gids[real_index].ctx = NULL;
356 hw_update = 1;
357 }
358 }
359 if (!ret && hw_update) {
360 int i;
361
362 gids = kmalloc(sizeof(*gids) * MLX4_MAX_PORT_GIDS, GFP_ATOMIC);
363 if (!gids) {
364 ret = -ENOMEM;
365 } else {
366 for (i = 0; i < MLX4_MAX_PORT_GIDS; i++)
367 memcpy(&gids[i].gid, &port_gid_table->gids[i].gid, sizeof(union ib_gid));
368 }
369 }
370 spin_unlock_bh(&iboe->lock);
371
372 if (!ret && hw_update) {
373 ret = mlx4_ib_update_gids(gids, ibdev, port_num);
374 kfree(gids);
375 }
376 return ret;
377}
378
379int mlx4_ib_gid_index_to_real_index(struct mlx4_ib_dev *ibdev,
380 u8 port_num, int index)
381{
382 struct mlx4_ib_iboe *iboe = &ibdev->iboe;
383 struct gid_cache_context *ctx = NULL;
384 union ib_gid gid;
385 struct mlx4_port_gid_table *port_gid_table;
386 int real_index = -EINVAL;
387 int i;
388 int ret;
389 unsigned long flags;
b699a859 390 struct ib_gid_attr attr;
e26be1bf
MS		 391
392 if (port_num > MLX4_MAX_PORTS)
393 return -EINVAL;
394
395 if (mlx4_is_bonded(ibdev->dev))
396 port_num = 1;
397
398 if (!rdma_cap_roce_gid_table(&ibdev->ib_dev, port_num))
399 return index;
400
b699a859 401 ret = ib_get_cached_gid(&ibdev->ib_dev, port_num, index, &gid, &attr);
e26be1bf
MS		 402 if (ret)
403 return ret;
404
b699a859
MS		 405 if (attr.ndev)
406 dev_put(attr.ndev);
407
e26be1bf
MS		 408 if (!memcmp(&gid, &zgid, sizeof(gid)))
409 return -EINVAL;
410
411 spin_lock_irqsave(&iboe->lock, flags);
412 port_gid_table = &iboe->gids[port_num - 1];
413
414 for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i)
b699a859
MS		 415 if (!memcmp(&port_gid_table->gids[i].gid, &gid, sizeof(gid)) &&
416 attr.gid_type == port_gid_table->gids[i].gid_type) {
e26be1bf
MS		 417 ctx = port_gid_table->gids[i].ctx;
418 break;
419 }
420 if (ctx)
421 real_index = ctx->real_index;
422 spin_unlock_irqrestore(&iboe->lock, flags);
423 return real_index;
424}
425
225c7b1f 426static int mlx4_ib_query_device(struct ib_device *ibdev,
2528e33e
MB		 427 struct ib_device_attr *props,
428 struct ib_udata *uhw)
225c7b1f
RD		 429{
430 struct mlx4_ib_dev *dev = to_mdev(ibdev);
431 struct ib_smp *in_mad = NULL;
432 struct ib_smp *out_mad = NULL;
433 int err = -ENOMEM;
3dec4878 434 int have_ib_ports;
4b664c43
MB		 435 struct mlx4_uverbs_ex_query_device cmd;
436 struct mlx4_uverbs_ex_query_device_resp resp = {.comp_mask = 0};
437 struct mlx4_clock_params clock_params;
225c7b1f 438
4b664c43
MB		 439 if (uhw->inlen) {
440 if (uhw->inlen < sizeof(cmd))
441 return -EINVAL;
442
443 err = ib_copy_from_udata(&cmd, uhw, sizeof(cmd));
444 if (err)
445 return err;
446
447 if (cmd.comp_mask)
448 return -EINVAL;
449
450 if (cmd.reserved)
451 return -EINVAL;
452 }
2528e33e 453
4b664c43
MB		 454 resp.response_length = offsetof(typeof(resp), response_length) +
455 sizeof(resp.response_length);
225c7b1f
RD		 456 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
457 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
458 if (!in_mad || !out_mad)
459 goto out;
460
461 init_query_mad(in_mad);
462 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
463
0a9a0188
JM		 464 err = mlx4_MAD_IFC(to_mdev(ibdev), MLX4_MAD_IFC_IGNORE_KEYS,
465 1, NULL, NULL, in_mad, out_mad);
225c7b1f
RD		 466 if (err)
467 goto out;
468
469 memset(props, 0, sizeof *props);
470
3dec4878
JM		 471 have_ib_ports = num_ib_ports(dev->dev);
472
225c7b1f
RD		 473 props->fw_ver = dev->dev->caps.fw_ver;
474 props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
475 IB_DEVICE_PORT_ACTIVE_EVENT |
476 IB_DEVICE_SYS_IMAGE_GUID |
521e575b
RL		 477 IB_DEVICE_RC_RNR_NAK_GEN |
478 IB_DEVICE_BLOCK_MULTICAST_LOOPBACK;
225c7b1f
RD		 479 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR)
480 props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
481 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR)
482 props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
3dec4878 483 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM && have_ib_ports)
225c7b1f
RD		 484 props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
485 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT)
486 props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
8ff095ec
EC		 487 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
488 props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
50e2ec91
MS		 489 if (dev->dev->caps.max_gso_sz &&
490 (dev->dev->rev_id != MLX4_IB_CARD_REV_A0) &&
491 (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BLH))
b832be1e 492 props->device_cap_flags |= IB_DEVICE_UD_TSO;
95d04f07
RD		 493 if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY)
494 props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY;
495 if ((dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_LOCAL_INV) &&
496 (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_REMOTE_INV) &&
497 (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_FAST_REG_WR))
498 props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
0a1405da
SH		 499 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC)
500 props->device_cap_flags |= IB_DEVICE_XRC;
b425388d
SM		 501 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW)
502 props->device_cap_flags |= IB_DEVICE_MEM_WINDOW;
503 if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) {
504 if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_WIN_TYPE_2B)
505 props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2B;
506 else
507 props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2A;
0a9b7d59 508 if (dev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED)
f77c0162 509 props->device_cap_flags |= IB_DEVICE_MANAGED_FLOW_STEERING;
b425388d 510 }
225c7b1f 511
070b3997
BW		 512 props->device_cap_flags |= IB_DEVICE_RAW_IP_CSUM;
513
225c7b1f
RD		 514 props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) &
515 0xffffff;
872bf2fb 516 props->vendor_part_id = dev->dev->persist->pdev->device;
225c7b1f
RD		 517 props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32));
518 memcpy(&props->sys_image_guid, out_mad->data + 4, 8);
519
520 props->max_mr_size = ~0ull;
521 props->page_size_cap = dev->dev->caps.page_size_cap;
5a0d0a61 522 props->max_qp = dev->dev->quotas.qp;
fc2d0044 523 props->max_qp_wr = dev->dev->caps.max_wqes - MLX4_IB_SQ_MAX_SPARE;
225c7b1f
RD		 524 props->max_sge = min(dev->dev->caps.max_sq_sg,
525 dev->dev->caps.max_rq_sg);
a5e14ba3 526 props->max_sge_rd = MLX4_MAX_SGE_RD;
5a0d0a61 527 props->max_cq = dev->dev->quotas.cq;
225c7b1f 528 props->max_cqe = dev->dev->caps.max_cqes;
5a0d0a61 529 props->max_mr = dev->dev->quotas.mpt;
225c7b1f
RD		 530 props->max_pd = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds;
531 props->max_qp_rd_atom = dev->dev->caps.max_qp_dest_rdma;
532 props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma;
533 props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp;
5a0d0a61 534 props->max_srq = dev->dev->quotas.srq;
c8681f14 535 props->max_srq_wr = dev->dev->caps.max_srq_wqes - 1;
225c7b1f 536 props->max_srq_sge = dev->dev->caps.max_srq_sge;
5a0fd094 537 props->max_fast_reg_page_list_len = MLX4_MAX_FAST_REG_PAGES;
225c7b1f
RD		 538 props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay;
539 props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ?
540 IB_ATOMIC_HCA : IB_ATOMIC_NONE;
47e956b2 541 props->masked_atomic_cap = props->atomic_cap;
5ae2a7a8 542 props->max_pkeys = dev->dev->caps.pkey_table_len[1];
225c7b1f
RD		 543 props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms;
544 props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm;
545 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
546 props->max_mcast_grp;
a5bbe892 547 props->max_map_per_fmr = dev->dev->caps.max_fmr_maps;
4b664c43
MB		 548 props->hca_core_clock = dev->dev->caps.hca_core_clock * 1000UL;
549 props->timestamp_mask = 0xFFFFFFFFFFFFULL;
225c7b1f 550
8a7ff14d
MB		 551 if (!mlx4_is_slave(dev->dev))
552 err = mlx4_get_internal_clock_params(dev->dev, &clock_params);
4b664c43
MB		 553
554 if (uhw->outlen >= resp.response_length + sizeof(resp.hca_core_clock_offset)) {
4b664c43 555 resp.response_length += sizeof(resp.hca_core_clock_offset);
8a7ff14d
MB		 556 if (!err && !mlx4_is_slave(dev->dev)) {
557 resp.comp_mask |= QUERY_DEVICE_RESP_MASK_TIMESTAMP;
558 resp.hca_core_clock_offset = clock_params.offset % PAGE_SIZE;
559 }
4b664c43
MB		 560 }
561
562 if (uhw->outlen) {
563 err = ib_copy_to_udata(uhw, &resp, resp.response_length);
564 if (err)
565 goto out;
566 }
225c7b1f
RD		 567out:
568 kfree(in_mad);
569 kfree(out_mad);
570
571 return err;
572}
573
fa417f7b
EC		 574static enum rdma_link_layer
575mlx4_ib_port_link_layer(struct ib_device *device, u8 port_num)
225c7b1f 576{
fa417f7b 577 struct mlx4_dev *dev = to_mdev(device)->dev;
225c7b1f 578
65dab25d 579 return dev->caps.port_mask[port_num] == MLX4_PORT_TYPE_IB ?
fa417f7b
EC		 580 IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET;
581}
225c7b1f 582
fa417f7b 583static int ib_link_query_port(struct ib_device *ibdev, u8 port,
0a9a0188 584 struct ib_port_attr *props, int netw_view)
fa417f7b 585{
a9c766bb
OG		 586 struct ib_smp *in_mad = NULL;
587 struct ib_smp *out_mad = NULL;
a5e12dff 588 int ext_active_speed;
0a9a0188 589 int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
a9c766bb
OG		 590 int err = -ENOMEM;
591
592 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
593 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
594 if (!in_mad || !out_mad)
595 goto out;
596
597 init_query_mad(in_mad);
598 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
599 in_mad->attr_mod = cpu_to_be32(port);
600
0a9a0188
JM		 601 if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view)
602 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
603
604 err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
a9c766bb
OG		 605 in_mad, out_mad);
606 if (err)
607 goto out;
608
a5e12dff 609
225c7b1f
RD		 610 props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16));
611 props->lmc = out_mad->data[34] & 0x7;
612 props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18));
613 props->sm_sl = out_mad->data[36] & 0xf;
614 props->state = out_mad->data[32] & 0xf;
615 props->phys_state = out_mad->data[33] >> 4;
616 props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20));
0a9a0188
JM		 617 if (netw_view)
618 props->gid_tbl_len = out_mad->data[50];
619 else
620 props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port];
149983af 621 props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz;
5ae2a7a8 622 props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port];
225c7b1f
RD		 623 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46));
624 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48));
625 props->active_width = out_mad->data[31] & 0xf;
626 props->active_speed = out_mad->data[35] >> 4;
627 props->max_mtu = out_mad->data[41] & 0xf;
628 props->active_mtu = out_mad->data[36] >> 4;
629 props->subnet_timeout = out_mad->data[51] & 0x1f;
630 props->max_vl_num = out_mad->data[37] >> 4;
631 props->init_type_reply = out_mad->data[41] >> 4;
632
a5e12dff
MA		 633 /* Check if extended speeds (EDR/FDR/...) are supported */
634 if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) {
635 ext_active_speed = out_mad->data[62] >> 4;
636
637 switch (ext_active_speed) {
638 case 1:
2e96691c 639 props->active_speed = IB_SPEED_FDR;
a5e12dff
MA		 640 break;
641 case 2:
2e96691c 642 props->active_speed = IB_SPEED_EDR;
a5e12dff
MA		 643 break;
644 }
645 }
646
647 /* If reported active speed is QDR, check if is FDR-10 */
2e96691c 648 if (props->active_speed == IB_SPEED_QDR) {
8154c07f
OG		 649 init_query_mad(in_mad);
650 in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO;
651 in_mad->attr_mod = cpu_to_be32(port);
652
0a9a0188 653 err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port,
8154c07f
OG		 654 NULL, NULL, in_mad, out_mad);
655 if (err)
bf6b47de 656 goto out;
8154c07f
OG		 657
658 /* Checking LinkSpeedActive for FDR-10 */
659 if (out_mad->data[15] & 0x1)
660 props->active_speed = IB_SPEED_FDR10;
a5e12dff 661 }
d2ef4068
OG		 662
663 /* Avoid wrong speed value returned by FW if the IB link is down. */
664 if (props->state == IB_PORT_DOWN)
665 props->active_speed = IB_SPEED_SDR;
666
a9c766bb
OG		 667out:
668 kfree(in_mad);
669 kfree(out_mad);
670 return err;
fa417f7b
EC		 671}
672
673static u8 state_to_phys_state(enum ib_port_state state)
674{
675 return state == IB_PORT_ACTIVE ? 5 : 3;
676}
677
678static int eth_link_query_port(struct ib_device *ibdev, u8 port,
0a9a0188 679 struct ib_port_attr *props, int netw_view)
fa417f7b 680{
a9c766bb
OG		 681
682 struct mlx4_ib_dev *mdev = to_mdev(ibdev);
683 struct mlx4_ib_iboe *iboe = &mdev->iboe;
fa417f7b
EC		 684 struct net_device *ndev;
685 enum ib_mtu tmp;
a9c766bb
OG		 686 struct mlx4_cmd_mailbox *mailbox;
687 int err = 0;
a5750090 688 int is_bonded = mlx4_is_bonded(mdev->dev);
a9c766bb
OG		 689
690 mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
691 if (IS_ERR(mailbox))
692 return PTR_ERR(mailbox);
fa417f7b 693
a9c766bb
OG		 694 err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0,
695 MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
696 MLX4_CMD_WRAPPED);
697 if (err)
698 goto out;
699
700 props->active_width = (((u8 *)mailbox->buf)[5] == 0x40) ?
701 IB_WIDTH_4X : IB_WIDTH_1X;
2e96691c 702 props->active_speed = IB_SPEED_QDR;
b4a26a27 703 props->port_cap_flags = IB_PORT_CM_SUP | IB_PORT_IP_BASED_GIDS;
a9c766bb
OG		 704 props->gid_tbl_len = mdev->dev->caps.gid_table_len[port];
705 props->max_msg_sz = mdev->dev->caps.max_msg_sz;
fa417f7b 706 props->pkey_tbl_len = 1;
bcacb897 707 props->max_mtu = IB_MTU_4096;
a9c766bb 708 props->max_vl_num = 2;
fa417f7b
EC		 709 props->state = IB_PORT_DOWN;
710 props->phys_state = state_to_phys_state(props->state);
711 props->active_mtu = IB_MTU_256;
dba3ad2a 712 spin_lock_bh(&iboe->lock);
fa417f7b 713 ndev = iboe->netdevs[port - 1];
5070cd22
MS		 714 if (ndev && is_bonded) {
715 rcu_read_lock(); /* required to get upper dev */
716 ndev = netdev_master_upper_dev_get_rcu(ndev);
717 rcu_read_unlock();
718 }
fa417f7b 719 if (!ndev)
a9c766bb 720 goto out_unlock;
fa417f7b
EC		 721
722 tmp = iboe_get_mtu(ndev->mtu);
723 props->active_mtu = tmp ? min(props->max_mtu, tmp) : IB_MTU_256;
724
21d60609 725 props->state = (netif_running(ndev) && netif_carrier_ok(ndev)) ?
fa417f7b
EC		 726 IB_PORT_ACTIVE : IB_PORT_DOWN;
727 props->phys_state = state_to_phys_state(props->state);
a9c766bb 728out_unlock:
dba3ad2a 729 spin_unlock_bh(&iboe->lock);
a9c766bb
OG		 730out:
731 mlx4_free_cmd_mailbox(mdev->dev, mailbox);
732 return err;
fa417f7b
EC		 733}
734
0a9a0188
JM		 735int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
736 struct ib_port_attr *props, int netw_view)
fa417f7b 737{
a9c766bb 738 int err;
fa417f7b
EC		 739
740 memset(props, 0, sizeof *props);
741
fa417f7b 742 err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ?
0a9a0188
JM		 743 ib_link_query_port(ibdev, port, props, netw_view) :
744 eth_link_query_port(ibdev, port, props, netw_view);
225c7b1f
RD		 745
746 return err;
747}
748
0a9a0188
JM		 749static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
750 struct ib_port_attr *props)
751{
752 /* returns host view */
753 return __mlx4_ib_query_port(ibdev, port, props, 0);
754}
755
a0c64a17
JM		 756int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
757 union ib_gid *gid, int netw_view)
225c7b1f
RD		 758{
759 struct ib_smp *in_mad = NULL;
760 struct ib_smp *out_mad = NULL;
761 int err = -ENOMEM;
a0c64a17
JM		 762 struct mlx4_ib_dev *dev = to_mdev(ibdev);
763 int clear = 0;
764 int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
225c7b1f
RD		 765
766 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
767 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
768 if (!in_mad || !out_mad)
769 goto out;
770
771 init_query_mad(in_mad);
772 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
773 in_mad->attr_mod = cpu_to_be32(port);
774
a0c64a17
JM		 775 if (mlx4_is_mfunc(dev->dev) && netw_view)
776 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
777
778 err = mlx4_MAD_IFC(dev, mad_ifc_flags, port, NULL, NULL, in_mad, out_mad);
225c7b1f
RD		 779 if (err)
780 goto out;
781
782 memcpy(gid->raw, out_mad->data + 8, 8);
783
a0c64a17
JM		 784 if (mlx4_is_mfunc(dev->dev) && !netw_view) {
785 if (index) {
786 /* For any index > 0, return the null guid */
787 err = 0;
788 clear = 1;
789 goto out;
790 }
791 }
792
225c7b1f
RD		 793 init_query_mad(in_mad);
794 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO;
795 in_mad->attr_mod = cpu_to_be32(index / 8);
796
a0c64a17 797 err = mlx4_MAD_IFC(dev, mad_ifc_flags, port,
0a9a0188 798 NULL, NULL, in_mad, out_mad);
225c7b1f
RD		 799 if (err)
800 goto out;
801
802 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
803
804out:
a0c64a17
JM		 805 if (clear)
806 memset(gid->raw + 8, 0, 8);
225c7b1f
RD		 807 kfree(in_mad);
808 kfree(out_mad);
809 return err;
810}
811
fa417f7b
EC		 812static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
813 union ib_gid *gid)
814{
5070cd22
MS		 815 int ret;
816
817 if (rdma_protocol_ib(ibdev, port))
a0c64a17 818 return __mlx4_ib_query_gid(ibdev, port, index, gid, 0);
5070cd22
MS		 819
820 if (!rdma_protocol_roce(ibdev, port))
821 return -ENODEV;
822
823 if (!rdma_cap_roce_gid_table(ibdev, port))
824 return -ENODEV;
825
55ee3ab2 826 ret = ib_get_cached_gid(ibdev, port, index, gid, NULL);
5070cd22
MS		 827 if (ret == -EAGAIN) {
828 memcpy(gid, &zgid, sizeof(*gid));
829 return 0;
830 }
831
832 return ret;
fa417f7b
EC		 833}
834
0a9a0188
JM		 835int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
836 u16 *pkey, int netw_view)
225c7b1f
RD		 837{
838 struct ib_smp *in_mad = NULL;
839 struct ib_smp *out_mad = NULL;
0a9a0188 840 int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
225c7b1f
RD		 841 int err = -ENOMEM;
842
843 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
844 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
845 if (!in_mad || !out_mad)
846 goto out;
847
848 init_query_mad(in_mad);
849 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE;
850 in_mad->attr_mod = cpu_to_be32(index / 32);
851
0a9a0188
JM		 852 if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view)
853 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
854
855 err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
856 in_mad, out_mad);
225c7b1f
RD		 857 if (err)
858 goto out;
859
860 *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]);
861
862out:
863 kfree(in_mad);
864 kfree(out_mad);
865 return err;
866}
867
0a9a0188
JM		 868static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey)
869{
870 return __mlx4_ib_query_pkey(ibdev, port, index, pkey, 0);
871}
872
225c7b1f
RD		 873static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask,
874 struct ib_device_modify *props)
875{
d0d68b86 876 struct mlx4_cmd_mailbox *mailbox;
df7fba66 877 unsigned long flags;
d0d68b86 878
225c7b1f
RD		 879 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
880 return -EOPNOTSUPP;
881
d0d68b86
JM		 882 if (!(mask & IB_DEVICE_MODIFY_NODE_DESC))
883 return 0;
884
992e8e6e
JM		 885 if (mlx4_is_slave(to_mdev(ibdev)->dev))
886 return -EOPNOTSUPP;
887
df7fba66 888 spin_lock_irqsave(&to_mdev(ibdev)->sm_lock, flags);
d0d68b86 889 memcpy(ibdev->node_desc, props->node_desc, 64);
df7fba66 890 spin_unlock_irqrestore(&to_mdev(ibdev)->sm_lock, flags);
d0d68b86
JM		 891
892 /*
893 * If possible, pass node desc to FW, so it can generate
894 * a 144 trap. If cmd fails, just ignore.
895 */
896 mailbox = mlx4_alloc_cmd_mailbox(to_mdev(ibdev)->dev);
897 if (IS_ERR(mailbox))
898 return 0;
899
d0d68b86
JM		 900 memcpy(mailbox->buf, props->node_desc, 64);
901 mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0,
992e8e6e 902 MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
d0d68b86
JM		 903
904 mlx4_free_cmd_mailbox(to_mdev(ibdev)->dev, mailbox);
225c7b1f
RD		 905
906 return 0;
907}
908
61565013
JM		 909static int mlx4_ib_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols,
910 u32 cap_mask)
225c7b1f
RD		 911{
912 struct mlx4_cmd_mailbox *mailbox;
913 int err;
914
915 mailbox = mlx4_alloc_cmd_mailbox(dev->dev);
916 if (IS_ERR(mailbox))
917 return PTR_ERR(mailbox);
918
5ae2a7a8
RD		 919 if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
920 *(u8 *) mailbox->buf = !!reset_qkey_viols << 6;
921 ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask);
922 } else {
923 ((u8 *) mailbox->buf)[3] = !!reset_qkey_viols;
924 ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask);
925 }
225c7b1f 926
a130b590
IS		 927 err = mlx4_cmd(dev->dev, mailbox->dma, port, MLX4_SET_PORT_IB_OPCODE,
928 MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
929 MLX4_CMD_WRAPPED);
225c7b1f
RD		 930
931 mlx4_free_cmd_mailbox(dev->dev, mailbox);
932 return err;
933}
934
935static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask,
936 struct ib_port_modify *props)
937{
61565013
JM		 938 struct mlx4_ib_dev *mdev = to_mdev(ibdev);
939 u8 is_eth = mdev->dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH;
225c7b1f
RD		 940 struct ib_port_attr attr;
941 u32 cap_mask;
942 int err;
943
61565013
JM		 944 /* return OK if this is RoCE. CM calls ib_modify_port() regardless
945 * of whether port link layer is ETH or IB. For ETH ports, qkey
946 * violations and port capabilities are not meaningful.
947 */
948 if (is_eth)
949 return 0;
950
951 mutex_lock(&mdev->cap_mask_mutex);
225c7b1f
RD		 952
953 err = mlx4_ib_query_port(ibdev, port, &attr);
954 if (err)
955 goto out;
956
957 cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
958 ~props->clr_port_cap_mask;
959
61565013
JM		 960 err = mlx4_ib_SET_PORT(mdev, port,
961 !!(mask & IB_PORT_RESET_QKEY_CNTR),
962 cap_mask);
225c7b1f
RD		 963
964out:
965 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
966 return err;
967}
968
969static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev,
970 struct ib_udata *udata)
971{
972 struct mlx4_ib_dev *dev = to_mdev(ibdev);
973 struct mlx4_ib_ucontext *context;
08ff3235 974 struct mlx4_ib_alloc_ucontext_resp_v3 resp_v3;
225c7b1f
RD		 975 struct mlx4_ib_alloc_ucontext_resp resp;
976 int err;
977
3b4a8cd5
JM		 978 if (!dev->ib_active)
979 return ERR_PTR(-EAGAIN);
980
08ff3235
OG		 981 if (ibdev->uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION) {
982 resp_v3.qp_tab_size = dev->dev->caps.num_qps;
983 resp_v3.bf_reg_size = dev->dev->caps.bf_reg_size;
984 resp_v3.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
985 } else {
986 resp.dev_caps = dev->dev->caps.userspace_caps;
987 resp.qp_tab_size = dev->dev->caps.num_qps;
988 resp.bf_reg_size = dev->dev->caps.bf_reg_size;
989 resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
990 resp.cqe_size = dev->dev->caps.cqe_size;
991 }
225c7b1f 992
ae184dde 993 context = kzalloc(sizeof(*context), GFP_KERNEL);
225c7b1f
RD		 994 if (!context)
995 return ERR_PTR(-ENOMEM);
996
997 err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar);
998 if (err) {
999 kfree(context);
1000 return ERR_PTR(err);
1001 }
1002
1003 INIT_LIST_HEAD(&context->db_page_list);
1004 mutex_init(&context->db_page_mutex);
1005
08ff3235
OG		 1006 if (ibdev->uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION)
1007 err = ib_copy_to_udata(udata, &resp_v3, sizeof(resp_v3));
1008 else
1009 err = ib_copy_to_udata(udata, &resp, sizeof(resp));
1010
225c7b1f
RD		 1011 if (err) {
1012 mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar);
1013 kfree(context);
1014 return ERR_PTR(-EFAULT);
1015 }
1016
1017 return &context->ibucontext;
1018}
1019
1020static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
1021{
1022 struct mlx4_ib_ucontext *context = to_mucontext(ibcontext);
1023
1024 mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar);
1025 kfree(context);
1026
1027 return 0;
1028}
1029
ae184dde
YH		 1030static void mlx4_ib_vma_open(struct vm_area_struct *area)
1031{
1032 /* vma_open is called when a new VMA is created on top of our VMA.
1033 * This is done through either mremap flow or split_vma (usually due
1034 * to mlock, madvise, munmap, etc.). We do not support a clone of the
1035 * vma, as this VMA is strongly hardware related. Therefore we set the
1036 * vm_ops of the newly created/cloned VMA to NULL, to prevent it from
1037 * calling us again and trying to do incorrect actions. We assume that
1038 * the original vma size is exactly a single page that there will be no
1039 * "splitting" operations on.
1040 */
1041 area->vm_ops = NULL;
1042}
1043
1044static void mlx4_ib_vma_close(struct vm_area_struct *area)
1045{
1046 struct mlx4_ib_vma_private_data *mlx4_ib_vma_priv_data;
1047
1048 /* It's guaranteed that all VMAs opened on a FD are closed before the
1049 * file itself is closed, therefore no sync is needed with the regular
1050 * closing flow. (e.g. mlx4_ib_dealloc_ucontext) However need a sync
1051 * with accessing the vma as part of mlx4_ib_disassociate_ucontext.
1052 * The close operation is usually called under mm->mmap_sem except when
1053 * process is exiting. The exiting case is handled explicitly as part
1054 * of mlx4_ib_disassociate_ucontext.
1055 */
1056 mlx4_ib_vma_priv_data = (struct mlx4_ib_vma_private_data *)
1057 area->vm_private_data;
1058
1059 /* set the vma context pointer to null in the mlx4_ib driver's private
1060 * data to protect against a race condition in mlx4_ib_dissassociate_ucontext().
1061 */
1062 mlx4_ib_vma_priv_data->vma = NULL;
1063}
1064
1065static const struct vm_operations_struct mlx4_ib_vm_ops = {
1066 .open = mlx4_ib_vma_open,
1067 .close = mlx4_ib_vma_close
1068};
1069
1070static void mlx4_ib_disassociate_ucontext(struct ib_ucontext *ibcontext)
1071{
1072 int i;
1073 int ret = 0;
1074 struct vm_area_struct *vma;
1075 struct mlx4_ib_ucontext *context = to_mucontext(ibcontext);
1076 struct task_struct *owning_process = NULL;
1077 struct mm_struct *owning_mm = NULL;
1078
1079 owning_process = get_pid_task(ibcontext->tgid, PIDTYPE_PID);
1080 if (!owning_process)
1081 return;
1082
1083 owning_mm = get_task_mm(owning_process);
1084 if (!owning_mm) {
1085 pr_info("no mm, disassociate ucontext is pending task termination\n");
1086 while (1) {
1087 /* make sure that task is dead before returning, it may
1088 * prevent a rare case of module down in parallel to a
1089 * call to mlx4_ib_vma_close.
1090 */
1091 put_task_struct(owning_process);
1092 msleep(1);
1093 owning_process = get_pid_task(ibcontext->tgid,
1094 PIDTYPE_PID);
1095 if (!owning_process ||
1096 owning_process->state == TASK_DEAD) {
1097 pr_info("disassociate ucontext done, task was terminated\n");
1098 /* in case task was dead need to release the task struct */
1099 if (owning_process)
1100 put_task_struct(owning_process);
1101 return;
1102 }
1103 }
1104 }
1105
1106 /* need to protect from a race on closing the vma as part of
1107 * mlx4_ib_vma_close().
1108 */
1109 down_read(&owning_mm->mmap_sem);
1110 for (i = 0; i < HW_BAR_COUNT; i++) {
1111 vma = context->hw_bar_info[i].vma;
1112 if (!vma)
1113 continue;
1114
1115 ret = zap_vma_ptes(context->hw_bar_info[i].vma,
1116 context->hw_bar_info[i].vma->vm_start,
1117 PAGE_SIZE);
1118 if (ret) {
1119 pr_err("Error: zap_vma_ptes failed for index=%d, ret=%d\n", i, ret);
1120 BUG_ON(1);
1121 }
1122
1123 /* context going to be destroyed, should not access ops any more */
1124 context->hw_bar_info[i].vma->vm_ops = NULL;
1125 }
1126
1127 up_read(&owning_mm->mmap_sem);
1128 mmput(owning_mm);
1129 put_task_struct(owning_process);
1130}
1131
1132static void mlx4_ib_set_vma_data(struct vm_area_struct *vma,
1133 struct mlx4_ib_vma_private_data *vma_private_data)
1134{
1135 vma_private_data->vma = vma;
1136 vma->vm_private_data = vma_private_data;
1137 vma->vm_ops = &mlx4_ib_vm_ops;
1138}
1139
225c7b1f
RD		 1140static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
1141{
1142 struct mlx4_ib_dev *dev = to_mdev(context->device);
ae184dde 1143 struct mlx4_ib_ucontext *mucontext = to_mucontext(context);
225c7b1f
RD		 1144
1145 if (vma->vm_end - vma->vm_start != PAGE_SIZE)
1146 return -EINVAL;
1147
1148 if (vma->vm_pgoff == 0) {
ae184dde
YH		 1149 /* We prevent double mmaping on same context */
1150 if (mucontext->hw_bar_info[HW_BAR_DB].vma)
1151 return -EINVAL;
1152
225c7b1f
RD		 1153 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
1154
1155 if (io_remap_pfn_range(vma, vma->vm_start,
1156 to_mucontext(context)->uar.pfn,
1157 PAGE_SIZE, vma->vm_page_prot))
1158 return -EAGAIN;
ae184dde
YH		 1159
1160 mlx4_ib_set_vma_data(vma, &mucontext->hw_bar_info[HW_BAR_DB]);
1161
225c7b1f 1162 } else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) {
ae184dde
YH		 1163 /* We prevent double mmaping on same context */
1164 if (mucontext->hw_bar_info[HW_BAR_BF].vma)
1165 return -EINVAL;
1166
e1d60ec6 1167 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
225c7b1f
RD		 1168
1169 if (io_remap_pfn_range(vma, vma->vm_start,
1170 to_mucontext(context)->uar.pfn +
1171 dev->dev->caps.num_uars,
1172 PAGE_SIZE, vma->vm_page_prot))
1173 return -EAGAIN;
ae184dde
YH		 1174
1175 mlx4_ib_set_vma_data(vma, &mucontext->hw_bar_info[HW_BAR_BF]);
1176
52033cfb
MB		 1177 } else if (vma->vm_pgoff == 3) {
1178 struct mlx4_clock_params params;
ae184dde
YH		 1179 int ret;
1180
1181 /* We prevent double mmaping on same context */
1182 if (mucontext->hw_bar_info[HW_BAR_CLOCK].vma)
1183 return -EINVAL;
1184
1185 ret = mlx4_get_internal_clock_params(dev->dev, &params);
52033cfb
MB		 1186
1187 if (ret)
1188 return ret;
1189
1190 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
1191 if (io_remap_pfn_range(vma, vma->vm_start,
1192 (pci_resource_start(dev->dev->persist->pdev,
1193 params.bar) +
1194 params.offset)
1195 >> PAGE_SHIFT,
1196 PAGE_SIZE, vma->vm_page_prot))
1197 return -EAGAIN;
ae184dde
YH		 1198
1199 mlx4_ib_set_vma_data(vma,
1200 &mucontext->hw_bar_info[HW_BAR_CLOCK]);
52033cfb 1201 } else {
225c7b1f 1202 return -EINVAL;
52033cfb 1203 }
225c7b1f
RD		 1204
1205 return 0;
1206}
1207
1208static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev,
1209 struct ib_ucontext *context,
1210 struct ib_udata *udata)
1211{
1212 struct mlx4_ib_pd *pd;
1213 int err;
1214
1215 pd = kmalloc(sizeof *pd, GFP_KERNEL);
1216 if (!pd)
1217 return ERR_PTR(-ENOMEM);
1218
1219 err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn);
1220 if (err) {
1221 kfree(pd);
1222 return ERR_PTR(err);
1223 }
1224
1225 if (context)
1226 if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) {
1227 mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn);
1228 kfree(pd);
1229 return ERR_PTR(-EFAULT);
1230 }
1231
1232 return &pd->ibpd;
1233}
1234
1235static int mlx4_ib_dealloc_pd(struct ib_pd *pd)
1236{
1237 mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn);
1238 kfree(pd);
1239
1240 return 0;
1241}
1242
012a8ff5
SH		 1243static struct ib_xrcd *mlx4_ib_alloc_xrcd(struct ib_device *ibdev,
1244 struct ib_ucontext *context,
1245 struct ib_udata *udata)
1246{
1247 struct mlx4_ib_xrcd *xrcd;
8e37210b 1248 struct ib_cq_init_attr cq_attr = {};
012a8ff5
SH		 1249 int err;
1250
1251 if (!(to_mdev(ibdev)->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC))
1252 return ERR_PTR(-ENOSYS);
1253
1254 xrcd = kmalloc(sizeof *xrcd, GFP_KERNEL);
1255 if (!xrcd)
1256 return ERR_PTR(-ENOMEM);
1257
1258 err = mlx4_xrcd_alloc(to_mdev(ibdev)->dev, &xrcd->xrcdn);
1259 if (err)
1260 goto err1;
1261
1262 xrcd->pd = ib_alloc_pd(ibdev);
1263 if (IS_ERR(xrcd->pd)) {
1264 err = PTR_ERR(xrcd->pd);
1265 goto err2;
1266 }
1267
8e37210b
MB		 1268 cq_attr.cqe = 1;
1269 xrcd->cq = ib_create_cq(ibdev, NULL, NULL, xrcd, &cq_attr);
012a8ff5
SH		 1270 if (IS_ERR(xrcd->cq)) {
1271 err = PTR_ERR(xrcd->cq);
1272 goto err3;
1273 }
1274
1275 return &xrcd->ibxrcd;
1276
1277err3:
1278 ib_dealloc_pd(xrcd->pd);
1279err2:
1280 mlx4_xrcd_free(to_mdev(ibdev)->dev, xrcd->xrcdn);
1281err1:
1282 kfree(xrcd);
1283 return ERR_PTR(err);
1284}
1285
1286static int mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd)
1287{
1288 ib_destroy_cq(to_mxrcd(xrcd)->cq);
1289 ib_dealloc_pd(to_mxrcd(xrcd)->pd);
1290 mlx4_xrcd_free(to_mdev(xrcd->device)->dev, to_mxrcd(xrcd)->xrcdn);
1291 kfree(xrcd);
1292
1293 return 0;
1294}
1295
fa417f7b
EC		 1296static int add_gid_entry(struct ib_qp *ibqp, union ib_gid *gid)
1297{
1298 struct mlx4_ib_qp *mqp = to_mqp(ibqp);
1299 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
1300 struct mlx4_ib_gid_entry *ge;
1301
1302 ge = kzalloc(sizeof *ge, GFP_KERNEL);
1303 if (!ge)
1304 return -ENOMEM;
1305
1306 ge->gid = *gid;
1307 if (mlx4_ib_add_mc(mdev, mqp, gid)) {
1308 ge->port = mqp->port;
1309 ge->added = 1;
1310 }
1311
1312 mutex_lock(&mqp->mutex);
1313 list_add_tail(&ge->list, &mqp->gid_list);
1314 mutex_unlock(&mqp->mutex);
1315
1316 return 0;
1317}
1318
3ba8e31d
EBE		 1319static void mlx4_ib_delete_counters_table(struct mlx4_ib_dev *ibdev,
1320 struct mlx4_ib_counters *ctr_table)
1321{
1322 struct counter_index *counter, *tmp_count;
1323
1324 mutex_lock(&ctr_table->mutex);
1325 list_for_each_entry_safe(counter, tmp_count, &ctr_table->counters_list,
1326 list) {
1327 if (counter->allocated)
1328 mlx4_counter_free(ibdev->dev, counter->index);
1329 list_del(&counter->list);
1330 kfree(counter);
1331 }
1332 mutex_unlock(&ctr_table->mutex);
1333}
1334
fa417f7b
EC		 1335int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
1336 union ib_gid *gid)
1337{
fa417f7b
EC		 1338 struct net_device *ndev;
1339 int ret = 0;
1340
1341 if (!mqp->port)
1342 return 0;
1343
dba3ad2a 1344 spin_lock_bh(&mdev->iboe.lock);
fa417f7b
EC		 1345 ndev = mdev->iboe.netdevs[mqp->port - 1];
1346 if (ndev)
1347 dev_hold(ndev);
dba3ad2a 1348 spin_unlock_bh(&mdev->iboe.lock);
fa417f7b
EC		 1349
1350 if (ndev) {
fa417f7b 1351 ret = 1;
fa417f7b
EC		 1352 dev_put(ndev);
1353 }
1354
1355 return ret;
1356}
1357
0ff1fb65
HHZ		 1358struct mlx4_ib_steering {
1359 struct list_head list;
146d6e19 1360 struct mlx4_flow_reg_id reg_id;
0ff1fb65
HHZ		 1361 union ib_gid gid;
1362};
1363
f77c0162 1364static int parse_flow_attr(struct mlx4_dev *dev,
a37a1a42 1365 u32 qp_num,
f77c0162
HHZ		 1366 union ib_flow_spec *ib_spec,
1367 struct _rule_hw *mlx4_spec)
1368{
1369 enum mlx4_net_trans_rule_id type;
1370
1371 switch (ib_spec->type) {
1372 case IB_FLOW_SPEC_ETH:
1373 type = MLX4_NET_TRANS_RULE_ID_ETH;
1374 memcpy(mlx4_spec->eth.dst_mac, ib_spec->eth.val.dst_mac,
1375 ETH_ALEN);
1376 memcpy(mlx4_spec->eth.dst_mac_msk, ib_spec->eth.mask.dst_mac,
1377 ETH_ALEN);
1378 mlx4_spec->eth.vlan_tag = ib_spec->eth.val.vlan_tag;
1379 mlx4_spec->eth.vlan_tag_msk = ib_spec->eth.mask.vlan_tag;
1380 break;
a37a1a42
MB		 1381 case IB_FLOW_SPEC_IB:
1382 type = MLX4_NET_TRANS_RULE_ID_IB;
1383 mlx4_spec->ib.l3_qpn =
1384 cpu_to_be32(qp_num);
1385 mlx4_spec->ib.qpn_mask =
1386 cpu_to_be32(MLX4_IB_FLOW_QPN_MASK);
1387 break;
1388
f77c0162
HHZ		 1389
1390 case IB_FLOW_SPEC_IPV4:
1391 type = MLX4_NET_TRANS_RULE_ID_IPV4;
1392 mlx4_spec->ipv4.src_ip = ib_spec->ipv4.val.src_ip;
1393 mlx4_spec->ipv4.src_ip_msk = ib_spec->ipv4.mask.src_ip;
1394 mlx4_spec->ipv4.dst_ip = ib_spec->ipv4.val.dst_ip;
1395 mlx4_spec->ipv4.dst_ip_msk = ib_spec->ipv4.mask.dst_ip;
1396 break;
1397
1398 case IB_FLOW_SPEC_TCP:
1399 case IB_FLOW_SPEC_UDP:
1400 type = ib_spec->type == IB_FLOW_SPEC_TCP ?
1401 MLX4_NET_TRANS_RULE_ID_TCP :
1402 MLX4_NET_TRANS_RULE_ID_UDP;
1403 mlx4_spec->tcp_udp.dst_port = ib_spec->tcp_udp.val.dst_port;
1404 mlx4_spec->tcp_udp.dst_port_msk = ib_spec->tcp_udp.mask.dst_port;
1405 mlx4_spec->tcp_udp.src_port = ib_spec->tcp_udp.val.src_port;
1406 mlx4_spec->tcp_udp.src_port_msk = ib_spec->tcp_udp.mask.src_port;
1407 break;
1408
1409 default:
1410 return -EINVAL;
1411 }
1412 if (mlx4_map_sw_to_hw_steering_id(dev, type) < 0 ||
1413 mlx4_hw_rule_sz(dev, type) < 0)
1414 return -EINVAL;
1415 mlx4_spec->id = cpu_to_be16(mlx4_map_sw_to_hw_steering_id(dev, type));
1416 mlx4_spec->size = mlx4_hw_rule_sz(dev, type) >> 2;
1417 return mlx4_hw_rule_sz(dev, type);
1418}
1419
a37a1a42
MB		 1420struct default_rules {
1421 __u32 mandatory_fields[IB_FLOW_SPEC_SUPPORT_LAYERS];
1422 __u32 mandatory_not_fields[IB_FLOW_SPEC_SUPPORT_LAYERS];
1423 __u32 rules_create_list[IB_FLOW_SPEC_SUPPORT_LAYERS];
1424 __u8 link_layer;
1425};
1426static const struct default_rules default_table[] = {
1427 {
1428 .mandatory_fields = {IB_FLOW_SPEC_IPV4},
1429 .mandatory_not_fields = {IB_FLOW_SPEC_ETH},
1430 .rules_create_list = {IB_FLOW_SPEC_IB},
1431 .link_layer = IB_LINK_LAYER_INFINIBAND
1432 }
1433};
1434
1435static int __mlx4_ib_default_rules_match(struct ib_qp *qp,
1436 struct ib_flow_attr *flow_attr)
1437{
1438 int i, j, k;
1439 void *ib_flow;
1440 const struct default_rules *pdefault_rules = default_table;
1441 u8 link_layer = rdma_port_get_link_layer(qp->device, flow_attr->port);
1442
a57f23f6 1443 for (i = 0; i < ARRAY_SIZE(default_table); i++, pdefault_rules++) {
a37a1a42
MB		 1444 __u32 field_types[IB_FLOW_SPEC_SUPPORT_LAYERS];
1445 memset(&field_types, 0, sizeof(field_types));
1446
1447 if (link_layer != pdefault_rules->link_layer)
1448 continue;
1449
1450 ib_flow = flow_attr + 1;
1451 /* we assume the specs are sorted */
1452 for (j = 0, k = 0; k < IB_FLOW_SPEC_SUPPORT_LAYERS &&
1453 j < flow_attr->num_of_specs; k++) {
1454 union ib_flow_spec *current_flow =
1455 (union ib_flow_spec *)ib_flow;
1456
1457 /* same layer but different type */
1458 if (((current_flow->type & IB_FLOW_SPEC_LAYER_MASK) ==
1459 (pdefault_rules->mandatory_fields[k] &
1460 IB_FLOW_SPEC_LAYER_MASK)) &&
1461 (current_flow->type !=
1462 pdefault_rules->mandatory_fields[k]))
1463 goto out;
1464
1465 /* same layer, try match next one */
1466 if (current_flow->type ==
1467 pdefault_rules->mandatory_fields[k]) {
1468 j++;
1469 ib_flow +=
1470 ((union ib_flow_spec *)ib_flow)->size;
1471 }
1472 }
1473
1474 ib_flow = flow_attr + 1;
1475 for (j = 0; j < flow_attr->num_of_specs;
1476 j++, ib_flow += ((union ib_flow_spec *)ib_flow)->size)
1477 for (k = 0; k < IB_FLOW_SPEC_SUPPORT_LAYERS; k++)
1478 /* same layer and same type */
1479 if (((union ib_flow_spec *)ib_flow)->type ==
1480 pdefault_rules->mandatory_not_fields[k])
1481 goto out;
1482
1483 return i;
1484 }
1485out:
1486 return -1;
1487}
1488
1489static int __mlx4_ib_create_default_rules(
1490 struct mlx4_ib_dev *mdev,
1491 struct ib_qp *qp,
1492 const struct default_rules *pdefault_rules,
1493 struct _rule_hw *mlx4_spec) {
1494 int size = 0;
1495 int i;
1496
a57f23f6 1497 for (i = 0; i < ARRAY_SIZE(pdefault_rules->rules_create_list); i++) {
a37a1a42
MB		 1498 int ret;
1499 union ib_flow_spec ib_spec;
1500 switch (pdefault_rules->rules_create_list[i]) {
1501 case 0:
1502 /* no rule */
1503 continue;
1504 case IB_FLOW_SPEC_IB:
1505 ib_spec.type = IB_FLOW_SPEC_IB;
1506 ib_spec.size = sizeof(struct ib_flow_spec_ib);
1507
1508 break;
1509 default:
1510 /* invalid rule */
1511 return -EINVAL;
1512 }
1513 /* We must put empty rule, qpn is being ignored */
1514 ret = parse_flow_attr(mdev->dev, 0, &ib_spec,
1515 mlx4_spec);
1516 if (ret < 0) {
1517 pr_info("invalid parsing\n");
1518 return -EINVAL;
1519 }
1520
1521 mlx4_spec = (void *)mlx4_spec + ret;
1522 size += ret;
1523 }
1524 return size;
1525}
1526
f77c0162
HHZ		 1527static int __mlx4_ib_create_flow(struct ib_qp *qp, struct ib_flow_attr *flow_attr,
1528 int domain,
1529 enum mlx4_net_trans_promisc_mode flow_type,
1530 u64 *reg_id)
1531{
1532 int ret, i;
1533 int size = 0;
1534 void *ib_flow;
1535 struct mlx4_ib_dev *mdev = to_mdev(qp->device);
1536 struct mlx4_cmd_mailbox *mailbox;
1537 struct mlx4_net_trans_rule_hw_ctrl *ctrl;
a37a1a42 1538 int default_flow;
f77c0162
HHZ		 1539
1540 static const u16 __mlx4_domain[] = {
1541 [IB_FLOW_DOMAIN_USER] = MLX4_DOMAIN_UVERBS,
1542 [IB_FLOW_DOMAIN_ETHTOOL] = MLX4_DOMAIN_ETHTOOL,
1543 [IB_FLOW_DOMAIN_RFS] = MLX4_DOMAIN_RFS,
1544 [IB_FLOW_DOMAIN_NIC] = MLX4_DOMAIN_NIC,
1545 };
1546
1547 if (flow_attr->priority > MLX4_IB_FLOW_MAX_PRIO) {
1548 pr_err("Invalid priority value %d\n", flow_attr->priority);
1549 return -EINVAL;
1550 }
1551
1552 if (domain >= IB_FLOW_DOMAIN_NUM) {
1553 pr_err("Invalid domain value %d\n", domain);
1554 return -EINVAL;
1555 }
1556
1557 if (mlx4_map_sw_to_hw_steering_mode(mdev->dev, flow_type) < 0)
1558 return -EINVAL;
1559
1560 mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
1561 if (IS_ERR(mailbox))
1562 return PTR_ERR(mailbox);
f77c0162
HHZ		 1563 ctrl = mailbox->buf;
1564
1565 ctrl->prio = cpu_to_be16(__mlx4_domain[domain] |
1566 flow_attr->priority);
1567 ctrl->type = mlx4_map_sw_to_hw_steering_mode(mdev->dev, flow_type);
1568 ctrl->port = flow_attr->port;
1569 ctrl->qpn = cpu_to_be32(qp->qp_num);
1570
1571 ib_flow = flow_attr + 1;
1572 size += sizeof(struct mlx4_net_trans_rule_hw_ctrl);
a37a1a42
MB		 1573 /* Add default flows */
1574 default_flow = __mlx4_ib_default_rules_match(qp, flow_attr);
1575 if (default_flow >= 0) {
1576 ret = __mlx4_ib_create_default_rules(
1577 mdev, qp, default_table + default_flow,
1578 mailbox->buf + size);
1579 if (ret < 0) {
1580 mlx4_free_cmd_mailbox(mdev->dev, mailbox);
1581 return -EINVAL;
1582 }
1583 size += ret;
1584 }
f77c0162 1585 for (i = 0; i < flow_attr->num_of_specs; i++) {
a37a1a42
MB		 1586 ret = parse_flow_attr(mdev->dev, qp->qp_num, ib_flow,
1587 mailbox->buf + size);
f77c0162
HHZ		 1588 if (ret < 0) {
1589 mlx4_free_cmd_mailbox(mdev->dev, mailbox);
1590 return -EINVAL;
1591 }
1592 ib_flow += ((union ib_flow_spec *) ib_flow)->size;
1593 size += ret;
1594 }
1595
1596 ret = mlx4_cmd_imm(mdev->dev, mailbox->dma, reg_id, size >> 2, 0,
1597 MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A,
48564135 1598 MLX4_CMD_WRAPPED);
f77c0162
HHZ		 1599 if (ret == -ENOMEM)
1600 pr_err("mcg table is full. Fail to register network rule.\n");
1601 else if (ret == -ENXIO)
1602 pr_err("Device managed flow steering is disabled. Fail to register network rule.\n");
1603 else if (ret)
35fc7b7d 1604 pr_err("Invalid argument. Fail to register network rule.\n");
f77c0162
HHZ		 1605
1606 mlx4_free_cmd_mailbox(mdev->dev, mailbox);
1607 return ret;
1608}
1609
1610static int __mlx4_ib_destroy_flow(struct mlx4_dev *dev, u64 reg_id)
1611{
1612 int err;
1613 err = mlx4_cmd(dev, reg_id, 0, 0,
1614 MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A,
48564135 1615 MLX4_CMD_WRAPPED);
f77c0162
HHZ		 1616 if (err)
1617 pr_err("Fail to detach network rule. registration id = 0x%llx\n",
1618 reg_id);
1619 return err;
1620}
1621
d2fce8a9
OG		 1622static int mlx4_ib_tunnel_steer_add(struct ib_qp *qp, struct ib_flow_attr *flow_attr,
1623 u64 *reg_id)
1624{
1625 void *ib_flow;
1626 union ib_flow_spec *ib_spec;
1627 struct mlx4_dev *dev = to_mdev(qp->device)->dev;
1628 int err = 0;
1629
5eff6dad
OG		 1630 if (dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN ||
1631 dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC)
d2fce8a9
OG		 1632 return 0; /* do nothing */
1633
1634 ib_flow = flow_attr + 1;
1635 ib_spec = (union ib_flow_spec *)ib_flow;
1636
1637 if (ib_spec->type != IB_FLOW_SPEC_ETH || flow_attr->num_of_specs != 1)
1638 return 0; /* do nothing */
1639
1640 err = mlx4_tunnel_steer_add(to_mdev(qp->device)->dev, ib_spec->eth.val.dst_mac,
1641 flow_attr->port, qp->qp_num,
1642 MLX4_DOMAIN_UVERBS | (flow_attr->priority & 0xff),
1643 reg_id);
1644 return err;
1645}
1646
0e451e88
MV		 1647static int mlx4_ib_add_dont_trap_rule(struct mlx4_dev *dev,
1648 struct ib_flow_attr *flow_attr,
1649 enum mlx4_net_trans_promisc_mode *type)
1650{
1651 int err = 0;
1652
1653 if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_UC_MC_SNIFFER) ||
1654 (dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC) ||
1655 (flow_attr->num_of_specs > 1) || (flow_attr->priority != 0)) {
1656 return -EOPNOTSUPP;
1657 }
1658
1659 if (flow_attr->num_of_specs == 0) {
1660 type[0] = MLX4_FS_MC_SNIFFER;
1661 type[1] = MLX4_FS_UC_SNIFFER;
1662 } else {
1663 union ib_flow_spec *ib_spec;
1664
1665 ib_spec = (union ib_flow_spec *)(flow_attr + 1);
1666 if (ib_spec->type != IB_FLOW_SPEC_ETH)
1667 return -EINVAL;
1668
1669 /* if all is zero than MC and UC */
1670 if (is_zero_ether_addr(ib_spec->eth.mask.dst_mac)) {
1671 type[0] = MLX4_FS_MC_SNIFFER;
1672 type[1] = MLX4_FS_UC_SNIFFER;
1673 } else {
1674 u8 mac[ETH_ALEN] = {ib_spec->eth.mask.dst_mac[0] ^ 0x01,
1675 ib_spec->eth.mask.dst_mac[1],
1676 ib_spec->eth.mask.dst_mac[2],
1677 ib_spec->eth.mask.dst_mac[3],
1678 ib_spec->eth.mask.dst_mac[4],
1679 ib_spec->eth.mask.dst_mac[5]};
1680
1681 /* Above xor was only on MC bit, non empty mask is valid
1682 * only if this bit is set and rest are zero.
1683 */
1684 if (!is_zero_ether_addr(&mac[0]))
1685 return -EINVAL;
1686
1687 if (is_multicast_ether_addr(ib_spec->eth.val.dst_mac))
1688 type[0] = MLX4_FS_MC_SNIFFER;
1689 else
1690 type[0] = MLX4_FS_UC_SNIFFER;
1691 }
1692 }
1693
1694 return err;
1695}
1696
f77c0162
HHZ		 1697static struct ib_flow *mlx4_ib_create_flow(struct ib_qp *qp,
1698 struct ib_flow_attr *flow_attr,
1699 int domain)
1700{
146d6e19 1701 int err = 0, i = 0, j = 0;
f77c0162
HHZ		 1702 struct mlx4_ib_flow *mflow;
1703 enum mlx4_net_trans_promisc_mode type[2];
146d6e19
MS		 1704 struct mlx4_dev *dev = (to_mdev(qp->device))->dev;
1705 int is_bonded = mlx4_is_bonded(dev);
f77c0162 1706
0e451e88
MV		 1707 if ((flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP) &&
1708 (flow_attr->type != IB_FLOW_ATTR_NORMAL))
a3100a78
MV		 1709 return ERR_PTR(-EOPNOTSUPP);
1710
f77c0162
HHZ		 1711 memset(type, 0, sizeof(type));
1712
1713 mflow = kzalloc(sizeof(*mflow), GFP_KERNEL);
1714 if (!mflow) {
1715 err = -ENOMEM;
1716 goto err_free;
1717 }
1718
1719 switch (flow_attr->type) {
1720 case IB_FLOW_ATTR_NORMAL:
0e451e88
MV		 1721 /* If dont trap flag (continue match) is set, under specific
1722 * condition traffic be replicated to given qp,
1723 * without stealing it
1724 */
1725 if (unlikely(flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP)) {
1726 err = mlx4_ib_add_dont_trap_rule(dev,
1727 flow_attr,
1728 type);
1729 if (err)
1730 goto err_free;
1731 } else {
1732 type[0] = MLX4_FS_REGULAR;
1733 }
f77c0162
HHZ		 1734 break;
1735
1736 case IB_FLOW_ATTR_ALL_DEFAULT:
1737 type[0] = MLX4_FS_ALL_DEFAULT;
1738 break;
1739
1740 case IB_FLOW_ATTR_MC_DEFAULT:
1741 type[0] = MLX4_FS_MC_DEFAULT;
1742 break;
1743
1744 case IB_FLOW_ATTR_SNIFFER:
0e451e88
MV		 1745 type[0] = MLX4_FS_MIRROR_RX_PORT;
1746 type[1] = MLX4_FS_MIRROR_SX_PORT;
f77c0162
HHZ		 1747 break;
1748
1749 default:
1750 err = -EINVAL;
1751 goto err_free;
1752 }
1753
1754 while (i < ARRAY_SIZE(type) && type[i]) {
1755 err = __mlx4_ib_create_flow(qp, flow_attr, domain, type[i],
146d6e19 1756 &mflow->reg_id[i].id);
f77c0162 1757 if (err)
571e1b2c 1758 goto err_create_flow;
146d6e19 1759 if (is_bonded) {
824c25c1
MS		 1760 /* Application always sees one port so the mirror rule
1761 * must be on port #2
1762 */
146d6e19
MS		 1763 flow_attr->port = 2;
1764 err = __mlx4_ib_create_flow(qp, flow_attr,
1765 domain, type[j],
1766 &mflow->reg_id[j].mirror);
1767 flow_attr->port = 1;
1768 if (err)
1769 goto err_create_flow;
1770 j++;
1771 }
1772
11562568 1773 i++;
f77c0162
HHZ		 1774 }
1775
d2fce8a9 1776 if (i < ARRAY_SIZE(type) && flow_attr->type == IB_FLOW_ATTR_NORMAL) {
146d6e19
MS		 1777 err = mlx4_ib_tunnel_steer_add(qp, flow_attr,
1778 &mflow->reg_id[i].id);
d2fce8a9 1779 if (err)
571e1b2c 1780 goto err_create_flow;
11562568 1781
146d6e19
MS		 1782 if (is_bonded) {
1783 flow_attr->port = 2;
1784 err = mlx4_ib_tunnel_steer_add(qp, flow_attr,
1785 &mflow->reg_id[j].mirror);
1786 flow_attr->port = 1;
1787 if (err)
1788 goto err_create_flow;
1789 j++;
1790 }
1791 /* function to create mirror rule */
11562568 1792 i++;
d2fce8a9
OG		 1793 }
1794
f77c0162
HHZ		 1795 return &mflow->ibflow;
1796
571e1b2c
OG		 1797err_create_flow:
1798 while (i) {
146d6e19
MS		 1799 (void)__mlx4_ib_destroy_flow(to_mdev(qp->device)->dev,
1800 mflow->reg_id[i].id);
571e1b2c
OG		 1801 i--;
1802 }
146d6e19
MS		 1803
1804 while (j) {
1805 (void)__mlx4_ib_destroy_flow(to_mdev(qp->device)->dev,
1806 mflow->reg_id[j].mirror);
1807 j--;
1808 }
f77c0162
HHZ		 1809err_free:
1810 kfree(mflow);
1811 return ERR_PTR(err);
1812}
1813
1814static int mlx4_ib_destroy_flow(struct ib_flow *flow_id)
1815{
1816 int err, ret = 0;
1817 int i = 0;
1818 struct mlx4_ib_dev *mdev = to_mdev(flow_id->qp->device);
1819 struct mlx4_ib_flow *mflow = to_mflow(flow_id);
1820
146d6e19
MS		 1821 while (i < ARRAY_SIZE(mflow->reg_id) && mflow->reg_id[i].id) {
1822 err = __mlx4_ib_destroy_flow(mdev->dev, mflow->reg_id[i].id);
f77c0162
HHZ		 1823 if (err)
1824 ret = err;
146d6e19
MS		 1825 if (mflow->reg_id[i].mirror) {
1826 err = __mlx4_ib_destroy_flow(mdev->dev,
1827 mflow->reg_id[i].mirror);
1828 if (err)
1829 ret = err;
1830 }
f77c0162
HHZ		 1831 i++;
1832 }
1833
1834 kfree(mflow);
1835 return ret;
1836}
1837
225c7b1f
RD		 1838static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
1839{
fa417f7b
EC		 1840 int err;
1841 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
146d6e19 1842 struct mlx4_dev *dev = mdev->dev;
fa417f7b 1843 struct mlx4_ib_qp *mqp = to_mqp(ibqp);
0ff1fb65 1844 struct mlx4_ib_steering *ib_steering = NULL;
e9a7faf1 1845 enum mlx4_protocol prot = MLX4_PROT_IB_IPV6;
146d6e19 1846 struct mlx4_flow_reg_id reg_id;
0ff1fb65
HHZ		 1847
1848 if (mdev->dev->caps.steering_mode ==
1849 MLX4_STEERING_MODE_DEVICE_MANAGED) {
1850 ib_steering = kmalloc(sizeof(*ib_steering), GFP_KERNEL);
1851 if (!ib_steering)
1852 return -ENOMEM;
1853 }
fa417f7b 1854
0ff1fb65
HHZ		 1855 err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, mqp->port,
1856 !!(mqp->flags &
1857 MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK),
146d6e19 1858 prot, &reg_id.id);
e9a7faf1
OG		 1859 if (err) {
1860 pr_err("multicast attach op failed, err %d\n", err);
0ff1fb65 1861 goto err_malloc;
e9a7faf1 1862 }
fa417f7b 1863
146d6e19
MS		 1864 reg_id.mirror = 0;
1865 if (mlx4_is_bonded(dev)) {
824c25c1
MS		 1866 err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw,
1867 (mqp->port == 1) ? 2 : 1,
146d6e19
MS		 1868 !!(mqp->flags &
1869 MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK),
1870 prot, &reg_id.mirror);
1871 if (err)
1872 goto err_add;
1873 }
1874
fa417f7b
EC		 1875 err = add_gid_entry(ibqp, gid);
1876 if (err)
1877 goto err_add;
1878
0ff1fb65
HHZ		 1879 if (ib_steering) {
1880 memcpy(ib_steering->gid.raw, gid->raw, 16);
1881 ib_steering->reg_id = reg_id;
1882 mutex_lock(&mqp->mutex);
1883 list_add(&ib_steering->list, &mqp->steering_rules);
1884 mutex_unlock(&mqp->mutex);
1885 }
fa417f7b
EC		 1886 return 0;
1887
1888err_add:
0ff1fb65 1889 mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
146d6e19
MS		 1890 prot, reg_id.id);
1891 if (reg_id.mirror)
1892 mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
1893 prot, reg_id.mirror);
0ff1fb65
HHZ		 1894err_malloc:
1895 kfree(ib_steering);
1896
fa417f7b
EC		 1897 return err;
1898}
1899
1900static struct mlx4_ib_gid_entry *find_gid_entry(struct mlx4_ib_qp *qp, u8 *raw)
1901{
1902 struct mlx4_ib_gid_entry *ge;
1903 struct mlx4_ib_gid_entry *tmp;
1904 struct mlx4_ib_gid_entry *ret = NULL;
1905
1906 list_for_each_entry_safe(ge, tmp, &qp->gid_list, list) {
1907 if (!memcmp(raw, ge->gid.raw, 16)) {
1908 ret = ge;
1909 break;
1910 }
1911 }
1912
1913 return ret;
225c7b1f
RD		 1914}
1915
1916static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
1917{
fa417f7b
EC		 1918 int err;
1919 struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
146d6e19 1920 struct mlx4_dev *dev = mdev->dev;
fa417f7b 1921 struct mlx4_ib_qp *mqp = to_mqp(ibqp);
fa417f7b
EC		 1922 struct net_device *ndev;
1923 struct mlx4_ib_gid_entry *ge;
146d6e19 1924 struct mlx4_flow_reg_id reg_id = {0, 0};
e9a7faf1 1925 enum mlx4_protocol prot = MLX4_PROT_IB_IPV6;
0ff1fb65
HHZ		 1926
1927 if (mdev->dev->caps.steering_mode ==
1928 MLX4_STEERING_MODE_DEVICE_MANAGED) {
1929 struct mlx4_ib_steering *ib_steering;
1930
1931 mutex_lock(&mqp->mutex);
1932 list_for_each_entry(ib_steering, &mqp->steering_rules, list) {
1933 if (!memcmp(ib_steering->gid.raw, gid->raw, 16)) {
1934 list_del(&ib_steering->list);
1935 break;
1936 }
1937 }
1938 mutex_unlock(&mqp->mutex);
1939 if (&ib_steering->list == &mqp->steering_rules) {
1940 pr_err("Couldn't find reg_id for mgid. Steering rule is left attached\n");
1941 return -EINVAL;
1942 }
1943 reg_id = ib_steering->reg_id;
1944 kfree(ib_steering);
1945 }
fa417f7b 1946
0ff1fb65 1947 err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
146d6e19 1948 prot, reg_id.id);
fa417f7b
EC		 1949 if (err)
1950 return err;
1951
146d6e19
MS		 1952 if (mlx4_is_bonded(dev)) {
1953 err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
1954 prot, reg_id.mirror);
1955 if (err)
1956 return err;
1957 }
1958
fa417f7b
EC		 1959 mutex_lock(&mqp->mutex);
1960 ge = find_gid_entry(mqp, gid->raw);
1961 if (ge) {
dba3ad2a 1962 spin_lock_bh(&mdev->iboe.lock);
fa417f7b
EC		 1963 ndev = ge->added ? mdev->iboe.netdevs[ge->port - 1] : NULL;
1964 if (ndev)
1965 dev_hold(ndev);
dba3ad2a 1966 spin_unlock_bh(&mdev->iboe.lock);
d487ee77 1967 if (ndev)
fa417f7b 1968 dev_put(ndev);
fa417f7b
EC		 1969 list_del(&ge->list);
1970 kfree(ge);
1971 } else
987c8f8f 1972 pr_warn("could not find mgid entry\n");
fa417f7b
EC		 1973
1974 mutex_unlock(&mqp->mutex);
1975
1976 return 0;
225c7b1f
RD		 1977}
1978
1979static int init_node_data(struct mlx4_ib_dev *dev)
1980{
1981 struct ib_smp *in_mad = NULL;
1982 struct ib_smp *out_mad = NULL;
0a9a0188 1983 int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
225c7b1f
RD		 1984 int err = -ENOMEM;
1985
1986 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
1987 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
1988 if (!in_mad || !out_mad)
1989 goto out;
1990
1991 init_query_mad(in_mad);
1992 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
0a9a0188
JM		 1993 if (mlx4_is_master(dev->dev))
1994 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
225c7b1f 1995
0a9a0188 1996 err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad);
225c7b1f
RD		 1997 if (err)
1998 goto out;
1999
2000 memcpy(dev->ib_dev.node_desc, out_mad->data, 64);
2001
2002 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
2003
0a9a0188 2004 err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad);
225c7b1f
RD		 2005 if (err)
2006 goto out;
2007
992e8e6e 2008 dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32));
225c7b1f
RD		 2009 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
2010
2011out:
2012 kfree(in_mad);
2013 kfree(out_mad);
2014 return err;
2015}
2016
f4e91eb4
TJ		 2017static ssize_t show_hca(struct device *device, struct device_attribute *attr,
2018 char *buf)
cd9281d8 2019{
f4e91eb4
TJ		 2020 struct mlx4_ib_dev *dev =
2021 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
872bf2fb 2022 return sprintf(buf, "MT%d\n", dev->dev->persist->pdev->device);
cd9281d8
JM		 2023}
2024
f4e91eb4
TJ		 2025static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr,
2026 char *buf)
cd9281d8 2027{
f4e91eb4
TJ		 2028 struct mlx4_ib_dev *dev =
2029 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
cd9281d8
JM		 2030 return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32),
2031 (int) (dev->dev->caps.fw_ver >> 16) & 0xffff,
2032 (int) dev->dev->caps.fw_ver & 0xffff);
2033}
2034
f4e91eb4
TJ		 2035static ssize_t show_rev(struct device *device, struct device_attribute *attr,
2036 char *buf)
cd9281d8 2037{
f4e91eb4
TJ		 2038 struct mlx4_ib_dev *dev =
2039 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
cd9281d8
JM		 2040 return sprintf(buf, "%x\n", dev->dev->rev_id);
2041}
2042
f4e91eb4
TJ		 2043static ssize_t show_board(struct device *device, struct device_attribute *attr,
2044 char *buf)
cd9281d8 2045{
f4e91eb4
TJ		 2046 struct mlx4_ib_dev *dev =
2047 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
2048 return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN,
2049 dev->dev->board_id);
cd9281d8
JM		 2050}
2051
f4e91eb4
TJ		 2052static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
2053static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
2054static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
2055static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
cd9281d8 2056
f4e91eb4
TJ		 2057static struct device_attribute *mlx4_class_attributes[] = {
2058 &dev_attr_hw_rev,
2059 &dev_attr_fw_ver,
2060 &dev_attr_hca_type,
2061 &dev_attr_board_id
cd9281d8
JM		 2062};
2063
9433c188
MB		 2064#define MLX4_IB_INVALID_MAC ((u64)-1)
2065static void mlx4_ib_update_qps(struct mlx4_ib_dev *ibdev,
2066 struct net_device *dev,
2067 int port)
2068{
2069 u64 new_smac = 0;
2070 u64 release_mac = MLX4_IB_INVALID_MAC;
2071 struct mlx4_ib_qp *qp;
2072
2073 read_lock(&dev_base_lock);
2074 new_smac = mlx4_mac_to_u64(dev->dev_addr);
2075 read_unlock(&dev_base_lock);
2076
3e0629cb
JM		 2077 atomic64_set(&ibdev->iboe.mac[port - 1], new_smac);
2078
d24d9f43
JM		 2079 /* no need for update QP1 and mac registration in non-SRIOV */
2080 if (!mlx4_is_mfunc(ibdev->dev))
2081 return;
2082
9433c188
MB		 2083 mutex_lock(&ibdev->qp1_proxy_lock[port - 1]);
2084 qp = ibdev->qp1_proxy[port - 1];
2085 if (qp) {
2086 int new_smac_index;
25476b02 2087 u64 old_smac;
9433c188
MB		 2088 struct mlx4_update_qp_params update_params;
2089
25476b02
JM		 2090 mutex_lock(&qp->mutex);
2091 old_smac = qp->pri.smac;
9433c188
MB		 2092 if (new_smac == old_smac)
2093 goto unlock;
2094
2095 new_smac_index = mlx4_register_mac(ibdev->dev, port, new_smac);
2096
2097 if (new_smac_index < 0)
2098 goto unlock;
2099
2100 update_params.smac_index = new_smac_index;
09e05c3f 2101 if (mlx4_update_qp(ibdev->dev, qp->mqp.qpn, MLX4_UPDATE_QP_SMAC,
9433c188
MB		 2102 &update_params)) {
2103 release_mac = new_smac;
2104 goto unlock;
2105 }
25476b02
JM		 2106 /* if old port was zero, no mac was yet registered for this QP */
2107 if (qp->pri.smac_port)
2108 release_mac = old_smac;
9433c188 2109 qp->pri.smac = new_smac;
25476b02 2110 qp->pri.smac_port = port;
9433c188 2111 qp->pri.smac_index = new_smac_index;
9433c188
MB		 2112 }
2113
2114unlock:
9433c188
MB		 2115 if (release_mac != MLX4_IB_INVALID_MAC)
2116 mlx4_unregister_mac(ibdev->dev, port, release_mac);
25476b02
JM		 2117 if (qp)
2118 mutex_unlock(&qp->mutex);
2119 mutex_unlock(&ibdev->qp1_proxy_lock[port - 1]);
9433c188
MB		 2120}
2121
9433c188
MB		 2122static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev,
2123 struct net_device *dev,
2124 unsigned long event)
2125
d487ee77 2126{
fa417f7b 2127 struct mlx4_ib_iboe *iboe;
9433c188 2128 int update_qps_port = -1;
fa417f7b
EC		 2129 int port;
2130
5070cd22
MS		 2131 ASSERT_RTNL();
2132
fa417f7b
EC		 2133 iboe = &ibdev->iboe;
2134
dba3ad2a 2135 spin_lock_bh(&iboe->lock);
fa417f7b 2136 mlx4_foreach_ib_transport_port(port, ibdev->dev) {
ad4885d2 2137
fa417f7b 2138 iboe->netdevs[port - 1] =
0345584e 2139 mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port);
fa417f7b 2140
9433c188
MB		 2141 if (dev == iboe->netdevs[port - 1] &&
2142 (event == NETDEV_CHANGEADDR || event == NETDEV_REGISTER ||
2143 event == NETDEV_UP || event == NETDEV_CHANGE))
2144 update_qps_port = port;
2145
d487ee77 2146 }
dba3ad2a 2147 spin_unlock_bh(&iboe->lock);
9433c188
MB		 2148
2149 if (update_qps_port > 0)
2150 mlx4_ib_update_qps(ibdev, dev, update_qps_port);
d487ee77
MS		 2151}
2152
2153static int mlx4_ib_netdev_event(struct notifier_block *this,
2154 unsigned long event, void *ptr)
2155{
2156 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
2157 struct mlx4_ib_dev *ibdev;
2158
2159 if (!net_eq(dev_net(dev), &init_net))
2160 return NOTIFY_DONE;
2161
2162 ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb);
9433c188 2163 mlx4_ib_scan_netdevs(ibdev, dev, event);
fa417f7b
EC		 2164
2165 return NOTIFY_DONE;
2166}
2167
54679e14
JM		 2168static void init_pkeys(struct mlx4_ib_dev *ibdev)
2169{
2170 int port;
2171 int slave;
2172 int i;
2173
2174 if (mlx4_is_master(ibdev->dev)) {
872bf2fb
YH		 2175 for (slave = 0; slave <= ibdev->dev->persist->num_vfs;
2176 ++slave) {
54679e14
JM		 2177 for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) {
2178 for (i = 0;
2179 i < ibdev->dev->phys_caps.pkey_phys_table_len[port];
2180 ++i) {
2181 ibdev->pkeys.virt2phys_pkey[slave][port - 1][i] =
2182 /* master has the identity virt2phys pkey mapping */
2183 (slave == mlx4_master_func_num(ibdev->dev) || !i) ? i :
2184 ibdev->dev->phys_caps.pkey_phys_table_len[port] - 1;
2185 mlx4_sync_pkey_table(ibdev->dev, slave, port, i,
2186 ibdev->pkeys.virt2phys_pkey[slave][port - 1][i]);
2187 }
2188 }
2189 }
2190 /* initialize pkey cache */
2191 for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) {
2192 for (i = 0;
2193 i < ibdev->dev->phys_caps.pkey_phys_table_len[port];
2194 ++i)
2195 ibdev->pkeys.phys_pkey_cache[port-1][i] =
2196 (i) ? 0 : 0xFFFF;
2197 }
2198 }
2199}
2200
e605b743
SP		 2201static void mlx4_ib_alloc_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
2202{
c66fa19c 2203 int i, j, eq = 0, total_eqs = 0;
e605b743 2204
c66fa19c
MB		 2205 ibdev->eq_table = kcalloc(dev->caps.num_comp_vectors,
2206 sizeof(ibdev->eq_table[0]), GFP_KERNEL);
e605b743
SP		 2207 if (!ibdev->eq_table)
2208 return;
2209
c66fa19c
MB		 2210 for (i = 1; i <= dev->caps.num_ports; i++) {
2211 for (j = 0; j < mlx4_get_eqs_per_port(dev, i);
2212 j++, total_eqs++) {
2213 if (i > 1 && mlx4_is_eq_shared(dev, total_eqs))
2214 continue;
2215 ibdev->eq_table[eq] = total_eqs;
2216 if (!mlx4_assign_eq(dev, i,
2217 &ibdev->eq_table[eq]))
2218 eq++;
2219 else
2220 ibdev->eq_table[eq] = -1;
e605b743
SP		 2221 }
2222 }
2223
c66fa19c
MB		 2224 for (i = eq; i < dev->caps.num_comp_vectors;
2225 ibdev->eq_table[i++] = -1)
2226 ;
e605b743
SP		 2227
2228 /* Advertise the new number of EQs to clients */
c66fa19c 2229 ibdev->ib_dev.num_comp_vectors = eq;
e605b743
SP		 2230}
2231
2232static void mlx4_ib_free_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
2233{
2234 int i;
c66fa19c 2235 int total_eqs = ibdev->ib_dev.num_comp_vectors;
3aac6ff1 2236
c66fa19c 2237 /* no eqs were allocated */
3aac6ff1
SP		 2238 if (!ibdev->eq_table)
2239 return;
e605b743
SP		 2240
2241 /* Reset the advertised EQ number */
c66fa19c 2242 ibdev->ib_dev.num_comp_vectors = 0;
e605b743 2243
c66fa19c 2244 for (i = 0; i < total_eqs; i++)
e605b743 2245 mlx4_release_eq(dev, ibdev->eq_table[i]);
e605b743 2246
e605b743 2247 kfree(ibdev->eq_table);
c66fa19c 2248 ibdev->eq_table = NULL;
e605b743
SP		 2249}
2250
7738613e
IW		 2251static int mlx4_port_immutable(struct ib_device *ibdev, u8 port_num,
2252 struct ib_port_immutable *immutable)
2253{
2254 struct ib_port_attr attr;
4ed088e6 2255 struct mlx4_ib_dev *mdev = to_mdev(ibdev);
7738613e
IW		 2256 int err;
2257
2258 err = mlx4_ib_query_port(ibdev, port_num, &attr);
2259 if (err)
2260 return err;
2261
2262 immutable->pkey_tbl_len = attr.pkey_tbl_len;
2263 immutable->gid_tbl_len = attr.gid_tbl_len;
2264
4ed088e6 2265 if (mlx4_ib_port_link_layer(ibdev, port_num) == IB_LINK_LAYER_INFINIBAND) {
f9b22e35 2266 immutable->core_cap_flags = RDMA_CORE_PORT_IBA_IB;
4ed088e6
MB		 2267 } else {
2268 if (mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE)
2269 immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE;
2270 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2)
2271 immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE |
2272 RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP;
2273 }
f9b22e35 2274
337877a4
IW		 2275 immutable->max_mad_size = IB_MGMT_MAD_SIZE;
2276
7738613e
IW		 2277 return 0;
2278}
2279
225c7b1f
RD		 2280static void *mlx4_ib_add(struct mlx4_dev *dev)
2281{
2282 struct mlx4_ib_dev *ibdev;
22e7ef9c 2283 int num_ports = 0;
035b1032 2284 int i, j;
fa417f7b
EC		 2285 int err;
2286 struct mlx4_ib_iboe *iboe;
4196670b 2287 int ib_num_ports = 0;
a5750090 2288 int num_req_counters;
c3abb51b
EBE		 2289 int allocated;
2290 u32 counter_index;
3ba8e31d 2291 struct counter_index *new_counter_index = NULL;
225c7b1f 2292
987c8f8f 2293 pr_info_once("%s", mlx4_ib_version);
68f3948d 2294
026149cb 2295 num_ports = 0;
fa417f7b 2296 mlx4_foreach_ib_transport_port(i, dev)
22e7ef9c
RD		 2297 num_ports++;
2298
2299 /* No point in registering a device with no ports... */
2300 if (num_ports == 0)
2301 return NULL;
2302
225c7b1f
RD		 2303 ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev);
2304 if (!ibdev) {
872bf2fb
YH		 2305 dev_err(&dev->persist->pdev->dev,
2306 "Device struct alloc failed\n");
225c7b1f
RD		 2307 return NULL;
2308 }
2309
fa417f7b
EC		 2310 iboe = &ibdev->iboe;
2311
225c7b1f
RD		 2312 if (mlx4_pd_alloc(dev, &ibdev->priv_pdn))
2313 goto err_dealloc;
2314
2315 if (mlx4_uar_alloc(dev, &ibdev->priv_uar))
2316 goto err_pd;
2317
4979d18f
RD		 2318 ibdev->uar_map = ioremap((phys_addr_t) ibdev->priv_uar.pfn << PAGE_SHIFT,
2319 PAGE_SIZE);
225c7b1f
RD		 2320 if (!ibdev->uar_map)
2321 goto err_uar;
26c6bc7b 2322 MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock);
225c7b1f 2323
225c7b1f 2324 ibdev->dev = dev;
c6215745 2325 ibdev->bond_next_port = 0;
225c7b1f
RD		 2326
2327 strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX);
2328 ibdev->ib_dev.owner = THIS_MODULE;
2329 ibdev->ib_dev.node_type = RDMA_NODE_IB_CA;
95d04f07 2330 ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey;
22e7ef9c 2331 ibdev->num_ports = num_ports;
a5750090
MS		 2332 ibdev->ib_dev.phys_port_cnt = mlx4_is_bonded(dev) ?
2333 1 : ibdev->num_ports;
b8dd786f 2334 ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors;
872bf2fb 2335 ibdev->ib_dev.dma_device = &dev->persist->pdev->dev;
5070cd22
MS		 2336 ibdev->ib_dev.get_netdev = mlx4_ib_get_netdev;
2337 ibdev->ib_dev.add_gid = mlx4_ib_add_gid;
2338 ibdev->ib_dev.del_gid = mlx4_ib_del_gid;
225c7b1f 2339
08ff3235
OG		 2340 if (dev->caps.userspace_caps)
2341 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION;
2342 else
2343 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION;
2344
225c7b1f
RD		 2345 ibdev->ib_dev.uverbs_cmd_mask =
2346 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
2347 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
2348 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
2349 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
2350 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
2351 (1ull << IB_USER_VERBS_CMD_REG_MR) |
9376932d 2352 (1ull << IB_USER_VERBS_CMD_REREG_MR) |
225c7b1f
RD		 2353 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
2354 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
2355 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
bbf8eed1 2356 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) |
225c7b1f
RD		 2357 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
2358 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
2359 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
6a775e2b 2360 (1ull << IB_USER_VERBS_CMD_QUERY_QP) |
225c7b1f
RD		 2361 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
2362 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) |
2363 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) |
2364 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
2365 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
65541cb7 2366 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) |
18abd5ea 2367 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) |
42849b26
SH		 2368 (1ull << IB_USER_VERBS_CMD_CREATE_XSRQ) |
2369 (1ull << IB_USER_VERBS_CMD_OPEN_QP);
225c7b1f
RD		 2370
2371 ibdev->ib_dev.query_device = mlx4_ib_query_device;
2372 ibdev->ib_dev.query_port = mlx4_ib_query_port;
fa417f7b 2373 ibdev->ib_dev.get_link_layer = mlx4_ib_port_link_layer;
225c7b1f
RD		 2374 ibdev->ib_dev.query_gid = mlx4_ib_query_gid;
2375 ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey;
2376 ibdev->ib_dev.modify_device = mlx4_ib_modify_device;
2377 ibdev->ib_dev.modify_port = mlx4_ib_modify_port;
2378 ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext;
2379 ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext;
2380 ibdev->ib_dev.mmap = mlx4_ib_mmap;
2381 ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd;
2382 ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd;
2383 ibdev->ib_dev.create_ah = mlx4_ib_create_ah;
2384 ibdev->ib_dev.query_ah = mlx4_ib_query_ah;
2385 ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah;
2386 ibdev->ib_dev.create_srq = mlx4_ib_create_srq;
2387 ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq;
65541cb7 2388 ibdev->ib_dev.query_srq = mlx4_ib_query_srq;
225c7b1f
RD		 2389 ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq;
2390 ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv;
2391 ibdev->ib_dev.create_qp = mlx4_ib_create_qp;
2392 ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp;
6a775e2b 2393 ibdev->ib_dev.query_qp = mlx4_ib_query_qp;
225c7b1f
RD		 2394 ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp;
2395 ibdev->ib_dev.post_send = mlx4_ib_post_send;
2396 ibdev->ib_dev.post_recv = mlx4_ib_post_recv;
2397 ibdev->ib_dev.create_cq = mlx4_ib_create_cq;
3fdcb97f 2398 ibdev->ib_dev.modify_cq = mlx4_ib_modify_cq;
bbf8eed1 2399 ibdev->ib_dev.resize_cq = mlx4_ib_resize_cq;
225c7b1f
RD		 2400 ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq;
2401 ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq;
2402 ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq;
2403 ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr;
2404 ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr;
9376932d 2405 ibdev->ib_dev.rereg_user_mr = mlx4_ib_rereg_user_mr;
225c7b1f 2406 ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr;
679e34d1 2407 ibdev->ib_dev.alloc_mr = mlx4_ib_alloc_mr;
1b2cd0fc 2408 ibdev->ib_dev.map_mr_sg = mlx4_ib_map_mr_sg;
225c7b1f
RD		 2409 ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach;
2410 ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach;
2411 ibdev->ib_dev.process_mad = mlx4_ib_process_mad;
7738613e 2412 ibdev->ib_dev.get_port_immutable = mlx4_port_immutable;
ae184dde 2413 ibdev->ib_dev.disassociate_ucontext = mlx4_ib_disassociate_ucontext;
225c7b1f 2414
992e8e6e
JM		 2415 if (!mlx4_is_slave(ibdev->dev)) {
2416 ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc;
2417 ibdev->ib_dev.map_phys_fmr = mlx4_ib_map_phys_fmr;
2418 ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr;
2419 ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc;
2420 }
8ad11fb6 2421
b425388d
SM		 2422 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW ||
2423 dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) {
2424 ibdev->ib_dev.alloc_mw = mlx4_ib_alloc_mw;
b425388d
SM		 2425 ibdev->ib_dev.dealloc_mw = mlx4_ib_dealloc_mw;
2426
2427 ibdev->ib_dev.uverbs_cmd_mask |=
2428 (1ull << IB_USER_VERBS_CMD_ALLOC_MW) |
2429 (1ull << IB_USER_VERBS_CMD_DEALLOC_MW);
2430 }
2431
012a8ff5
SH		 2432 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) {
2433 ibdev->ib_dev.alloc_xrcd = mlx4_ib_alloc_xrcd;
2434 ibdev->ib_dev.dealloc_xrcd = mlx4_ib_dealloc_xrcd;
2435 ibdev->ib_dev.uverbs_cmd_mask |=
2436 (1ull << IB_USER_VERBS_CMD_OPEN_XRCD) |
2437 (1ull << IB_USER_VERBS_CMD_CLOSE_XRCD);
2438 }
2439
f77c0162 2440 if (check_flow_steering_support(dev)) {
0a9b7d59 2441 ibdev->steering_support = MLX4_STEERING_MODE_DEVICE_MANAGED;
f77c0162
HHZ		 2442 ibdev->ib_dev.create_flow = mlx4_ib_create_flow;
2443 ibdev->ib_dev.destroy_flow = mlx4_ib_destroy_flow;
2444
f21519b2
YD		 2445 ibdev->ib_dev.uverbs_ex_cmd_mask |=
2446 (1ull << IB_USER_VERBS_EX_CMD_CREATE_FLOW) |
2447 (1ull << IB_USER_VERBS_EX_CMD_DESTROY_FLOW);
f77c0162
HHZ		 2448 }
2449
4b664c43
MB		 2450 ibdev->ib_dev.uverbs_ex_cmd_mask |=
2451 (1ull << IB_USER_VERBS_EX_CMD_QUERY_DEVICE) |
fbfb6625
EBE		 2452 (1ull << IB_USER_VERBS_EX_CMD_CREATE_CQ) |
2453 (1ull << IB_USER_VERBS_EX_CMD_CREATE_QP);
4b664c43 2454
e605b743
SP		 2455 mlx4_ib_alloc_eqs(dev, ibdev);
2456
fa417f7b
EC		 2457 spin_lock_init(&iboe->lock);
2458
225c7b1f
RD		 2459 if (init_node_data(ibdev))
2460 goto err_map;
2461
3ba8e31d
EBE		 2462 for (i = 0; i < ibdev->num_ports; ++i) {
2463 mutex_init(&ibdev->counters_table[i].mutex);
2464 INIT_LIST_HEAD(&ibdev->counters_table[i].counters_list);
2465 }
2466
a5750090
MS		 2467 num_req_counters = mlx4_is_bonded(dev) ? 1 : ibdev->num_ports;
2468 for (i = 0; i < num_req_counters; ++i) {
9433c188 2469 mutex_init(&ibdev->qp1_proxy_lock[i]);
c3abb51b 2470 allocated = 0;
cfcde11c
OG		 2471 if (mlx4_ib_port_link_layer(&ibdev->ib_dev, i + 1) ==
2472 IB_LINK_LAYER_ETHERNET) {
c3abb51b
EBE		 2473 err = mlx4_counter_alloc(ibdev->dev, &counter_index);
2474 /* if failed to allocate a new counter, use default */
cfcde11c 2475 if (err)
c3abb51b
EBE		 2476 counter_index =
2477 mlx4_get_default_counter_index(dev,
2478 i + 1);
2479 else
2480 allocated = 1;
2481 } else { /* IB_LINK_LAYER_INFINIBAND use the default counter */
2482 counter_index = mlx4_get_default_counter_index(dev,
2483 i + 1);
3839d8ac 2484 }
3ba8e31d
EBE		 2485 new_counter_index = kmalloc(sizeof(*new_counter_index),
2486 GFP_KERNEL);
2487 if (!new_counter_index) {
2488 if (allocated)
2489 mlx4_counter_free(ibdev->dev, counter_index);
2490 goto err_counter;
2491 }
2492 new_counter_index->index = counter_index;
2493 new_counter_index->allocated = allocated;
2494 list_add_tail(&new_counter_index->list,
2495 &ibdev->counters_table[i].counters_list);
2496 ibdev->counters_table[i].default_counter = counter_index;
c3abb51b
EBE		 2497 pr_info("counter index %d for port %d allocated %d\n",
2498 counter_index, i + 1, allocated);
cfcde11c 2499 }
a5750090 2500 if (mlx4_is_bonded(dev))
c3abb51b 2501 for (i = 1; i < ibdev->num_ports ; ++i) {
3ba8e31d
EBE		 2502 new_counter_index =
2503 kmalloc(sizeof(struct counter_index),
2504 GFP_KERNEL);
2505 if (!new_counter_index)
2506 goto err_counter;
2507 new_counter_index->index = counter_index;
2508 new_counter_index->allocated = 0;
2509 list_add_tail(&new_counter_index->list,
2510 &ibdev->counters_table[i].counters_list);
2511 ibdev->counters_table[i].default_counter =
2512 counter_index;
c3abb51b 2513 }
cfcde11c 2514
4196670b
MB		 2515 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
2516 ib_num_ports++;
2517
225c7b1f
RD		 2518 spin_lock_init(&ibdev->sm_lock);
2519 mutex_init(&ibdev->cap_mask_mutex);
35f05dab
YH		 2520 INIT_LIST_HEAD(&ibdev->qp_list);
2521 spin_lock_init(&ibdev->reset_flow_resource_lock);
225c7b1f 2522
4196670b
MB		 2523 if (ibdev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED &&
2524 ib_num_ports) {
c1c98501
MB		 2525 ibdev->steer_qpn_count = MLX4_IB_UC_MAX_NUM_QPS;
2526 err = mlx4_qp_reserve_range(dev, ibdev->steer_qpn_count,
2527 MLX4_IB_UC_STEER_QPN_ALIGN,
ddae0349 2528 &ibdev->steer_qpn_base, 0);
c1c98501
MB		 2529 if (err)
2530 goto err_counter;
2531
2532 ibdev->ib_uc_qpns_bitmap =
2533 kmalloc(BITS_TO_LONGS(ibdev->steer_qpn_count) *
2534 sizeof(long),
2535 GFP_KERNEL);
2536 if (!ibdev->ib_uc_qpns_bitmap) {
872bf2fb
YH		 2537 dev_err(&dev->persist->pdev->dev,
2538 "bit map alloc failed\n");
c1c98501
MB		 2539 goto err_steer_qp_release;
2540 }
2541
2542 bitmap_zero(ibdev->ib_uc_qpns_bitmap, ibdev->steer_qpn_count);
2543
2544 err = mlx4_FLOW_STEERING_IB_UC_QP_RANGE(
2545 dev, ibdev->steer_qpn_base,
2546 ibdev->steer_qpn_base +
2547 ibdev->steer_qpn_count - 1);
2548 if (err)
2549 goto err_steer_free_bitmap;
2550 }
2551
3e0629cb
JM		 2552 for (j = 1; j <= ibdev->dev->caps.num_ports; j++)
2553 atomic64_set(&iboe->mac[j - 1], ibdev->dev->caps.def_mac[j]);
2554
9a6edb60 2555 if (ib_register_device(&ibdev->ib_dev, NULL))
c1c98501 2556 goto err_steer_free_bitmap;
225c7b1f
RD		 2557
2558 if (mlx4_ib_mad_init(ibdev))
2559 goto err_reg;
2560
fc06573d
JM		 2561 if (mlx4_ib_init_sriov(ibdev))
2562 goto err_mad;
2563
71a39bbb
MS		 2564 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE ||
2565 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2) {
d487ee77
MS		 2566 if (!iboe->nb.notifier_call) {
2567 iboe->nb.notifier_call = mlx4_ib_netdev_event;
2568 err = register_netdevice_notifier(&iboe->nb);
2569 if (err) {
2570 iboe->nb.notifier_call = NULL;
2571 goto err_notif;
2572 }
2573 }
71a39bbb
MS		 2574 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2) {
2575 err = mlx4_config_roce_v2_port(dev, ROCE_V2_UDP_DPORT);
2576 if (err) {
2577 goto err_notif;
2578 }
2579 }
fa417f7b
EC		 2580 }
2581
035b1032 2582 for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) {
f4e91eb4 2583 if (device_create_file(&ibdev->ib_dev.dev,
035b1032 2584 mlx4_class_attributes[j]))
fa417f7b 2585 goto err_notif;
cd9281d8
JM		 2586 }
2587
3b4a8cd5 2588 ibdev->ib_active = true;
09d4d087
JP		 2589 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
2590 devlink_port_type_ib_set(mlx4_get_devlink_port(dev, i),
2591 &ibdev->ib_dev);
3b4a8cd5 2592
54679e14
JM		 2593 if (mlx4_is_mfunc(ibdev->dev))
2594 init_pkeys(ibdev);
2595
3806d08c
JM		 2596 /* create paravirt contexts for any VFs which are active */
2597 if (mlx4_is_master(ibdev->dev)) {
2598 for (j = 0; j < MLX4_MFUNC_MAX; j++) {
2599 if (j == mlx4_master_func_num(ibdev->dev))
2600 continue;
2601 if (mlx4_is_slave_active(ibdev->dev, j))
2602 do_slave_init(ibdev, j, 1);
2603 }
2604 }
225c7b1f
RD		 2605 return ibdev;
2606
fa417f7b 2607err_notif:
d487ee77
MS		 2608 if (ibdev->iboe.nb.notifier_call) {
2609 if (unregister_netdevice_notifier(&ibdev->iboe.nb))
2610 pr_warn("failure unregistering notifier\n");
2611 ibdev->iboe.nb.notifier_call = NULL;
2612 }
fa417f7b
EC		 2613 flush_workqueue(wq);
2614
fc06573d
JM		 2615 mlx4_ib_close_sriov(ibdev);
2616
2617err_mad:
2618 mlx4_ib_mad_cleanup(ibdev);
2619
225c7b1f
RD		 2620err_reg:
2621 ib_unregister_device(&ibdev->ib_dev);
2622
c1c98501
MB		 2623err_steer_free_bitmap:
2624 kfree(ibdev->ib_uc_qpns_bitmap);
2625
2626err_steer_qp_release:
2627 if (ibdev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED)
2628 mlx4_qp_release_range(dev, ibdev->steer_qpn_base,
2629 ibdev->steer_qpn_count);
cfcde11c 2630err_counter:
3ba8e31d
EBE		 2631 for (i = 0; i < ibdev->num_ports; ++i)
2632 mlx4_ib_delete_counters_table(ibdev, &ibdev->counters_table[i]);
2633
225c7b1f
RD		 2634err_map:
2635 iounmap(ibdev->uar_map);
2636
2637err_uar:
2638 mlx4_uar_free(dev, &ibdev->priv_uar);
2639
2640err_pd:
2641 mlx4_pd_free(dev, ibdev->priv_pdn);
2642
2643err_dealloc:
2644 ib_dealloc_device(&ibdev->ib_dev);
2645
2646 return NULL;
2647}
2648
c1c98501
MB		 2649int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn)
2650{
2651 int offset;
2652
2653 WARN_ON(!dev->ib_uc_qpns_bitmap);
2654
2655 offset = bitmap_find_free_region(dev->ib_uc_qpns_bitmap,
2656 dev->steer_qpn_count,
2657 get_count_order(count));
2658 if (offset < 0)
2659 return offset;
2660
2661 *qpn = dev->steer_qpn_base + offset;
2662 return 0;
2663}
2664
2665void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count)
2666{
2667 if (!qpn ||
2668 dev->steering_support != MLX4_STEERING_MODE_DEVICE_MANAGED)
2669 return;
2670
2671 BUG_ON(qpn < dev->steer_qpn_base);
2672
2673 bitmap_release_region(dev->ib_uc_qpns_bitmap,
2674 qpn - dev->steer_qpn_base,
2675 get_count_order(count));
2676}
2677
2678int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
2679 int is_attach)
2680{
2681 int err;
2682 size_t flow_size;
2683 struct ib_flow_attr *flow = NULL;
2684 struct ib_flow_spec_ib *ib_spec;
2685
2686 if (is_attach) {
2687 flow_size = sizeof(struct ib_flow_attr) +
2688 sizeof(struct ib_flow_spec_ib);
2689 flow = kzalloc(flow_size, GFP_KERNEL);
2690 if (!flow)
2691 return -ENOMEM;
2692 flow->port = mqp->port;
2693 flow->num_of_specs = 1;
2694 flow->size = flow_size;
2695 ib_spec = (struct ib_flow_spec_ib *)(flow + 1);
2696 ib_spec->type = IB_FLOW_SPEC_IB;
2697 ib_spec->size = sizeof(struct ib_flow_spec_ib);
2698 /* Add an empty rule for IB L2 */
2699 memset(&ib_spec->mask, 0, sizeof(ib_spec->mask));
2700
2701 err = __mlx4_ib_create_flow(&mqp->ibqp, flow,
2702 IB_FLOW_DOMAIN_NIC,
2703 MLX4_FS_REGULAR,
2704 &mqp->reg_id);
2705 } else {
2706 err = __mlx4_ib_destroy_flow(mdev->dev, mqp->reg_id);
2707 }
2708 kfree(flow);
2709 return err;
2710}
2711
225c7b1f
RD		 2712static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
2713{
2714 struct mlx4_ib_dev *ibdev = ibdev_ptr;
2715 int p;
09d4d087 2716 int i;
225c7b1f 2717
09d4d087
JP		 2718 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
2719 devlink_port_type_clear(mlx4_get_devlink_port(dev, i));
4bf9715f
MS		 2720 ibdev->ib_active = false;
2721 flush_workqueue(wq);
2722
fc06573d 2723 mlx4_ib_close_sriov(ibdev);
a6a47771
YP		 2724 mlx4_ib_mad_cleanup(ibdev);
2725 ib_unregister_device(&ibdev->ib_dev);
fa417f7b
EC		 2726 if (ibdev->iboe.nb.notifier_call) {
2727 if (unregister_netdevice_notifier(&ibdev->iboe.nb))
987c8f8f 2728 pr_warn("failure unregistering notifier\n");
fa417f7b
EC		 2729 ibdev->iboe.nb.notifier_call = NULL;
2730 }
c1c98501
MB		 2731
2732 if (ibdev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED) {
2733 mlx4_qp_release_range(dev, ibdev->steer_qpn_base,
2734 ibdev->steer_qpn_count);
2735 kfree(ibdev->ib_uc_qpns_bitmap);
2736 }
2737
fa417f7b 2738 iounmap(ibdev->uar_map);
cfcde11c 2739 for (p = 0; p < ibdev->num_ports; ++p)
3ba8e31d
EBE		 2740 mlx4_ib_delete_counters_table(ibdev, &ibdev->counters_table[p]);
2741
fa417f7b 2742 mlx4_foreach_port(p, dev, MLX4_PORT_TYPE_IB)
225c7b1f
RD		 2743 mlx4_CLOSE_PORT(dev, p);
2744
e605b743
SP		 2745 mlx4_ib_free_eqs(dev, ibdev);
2746
225c7b1f
RD		 2747 mlx4_uar_free(dev, &ibdev->priv_uar);
2748 mlx4_pd_free(dev, ibdev->priv_pdn);
2749 ib_dealloc_device(&ibdev->ib_dev);
2750}
2751
fc06573d
JM		 2752static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init)
2753{
2754 struct mlx4_ib_demux_work **dm = NULL;
2755 struct mlx4_dev *dev = ibdev->dev;
2756 int i;
2757 unsigned long flags;
449fc488
MB		 2758 struct mlx4_active_ports actv_ports;
2759 unsigned int ports;
2760 unsigned int first_port;
fc06573d
JM		 2761
2762 if (!mlx4_is_master(dev))
2763 return;
2764
449fc488
MB		 2765 actv_ports = mlx4_get_active_ports(dev, slave);
2766 ports = bitmap_weight(actv_ports.ports, dev->caps.num_ports);
2767 first_port = find_first_bit(actv_ports.ports, dev->caps.num_ports);
2768
2769 dm = kcalloc(ports, sizeof(*dm), GFP_ATOMIC);
fc06573d
JM		 2770 if (!dm) {
2771 pr_err("failed to allocate memory for tunneling qp update\n");
a39a98ff 2772 return;
fc06573d
JM		 2773 }
2774
449fc488 2775 for (i = 0; i < ports; i++) {
fc06573d
JM		 2776 dm[i] = kmalloc(sizeof (struct mlx4_ib_demux_work), GFP_ATOMIC);
2777 if (!dm[i]) {
2778 pr_err("failed to allocate memory for tunneling qp update work struct\n");
a39a98ff
MS		 2779 while (--i >= 0)
2780 kfree(dm[i]);
fc06573d
JM		 2781 goto out;
2782 }
fc06573d 2783 INIT_WORK(&dm[i]->work, mlx4_ib_tunnels_update_work);
449fc488 2784 dm[i]->port = first_port + i + 1;
fc06573d
JM		 2785 dm[i]->slave = slave;
2786 dm[i]->do_init = do_init;
2787 dm[i]->dev = ibdev;
d9a047ae
DL		 2788 }
2789 /* initialize or tear down tunnel QPs for the slave */
2790 spin_lock_irqsave(&ibdev->sriov.going_down_lock, flags);
2791 if (!ibdev->sriov.is_going_down) {
2792 for (i = 0; i < ports; i++)
fc06573d
JM		 2793 queue_work(ibdev->sriov.demux[i].ud_wq, &dm[i]->work);
2794 spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags);
d9a047ae
DL		 2795 } else {
2796 spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags);
2797 for (i = 0; i < ports; i++)
2798 kfree(dm[i]);
fc06573d
JM		 2799 }
2800out:
c89d1271 2801 kfree(dm);
fc06573d
JM		 2802 return;
2803}
2804
35f05dab
YH		 2805static void mlx4_ib_handle_catas_error(struct mlx4_ib_dev *ibdev)
2806{
2807 struct mlx4_ib_qp *mqp;
2808 unsigned long flags_qp;
2809 unsigned long flags_cq;
2810 struct mlx4_ib_cq *send_mcq, *recv_mcq;
2811 struct list_head cq_notify_list;
2812 struct mlx4_cq *mcq;
2813 unsigned long flags;
2814
2815 pr_warn("mlx4_ib_handle_catas_error was started\n");
2816 INIT_LIST_HEAD(&cq_notify_list);
2817
2818 /* Go over qp list reside on that ibdev, sync with create/destroy qp.*/
2819 spin_lock_irqsave(&ibdev->reset_flow_resource_lock, flags);
2820
2821 list_for_each_entry(mqp, &ibdev->qp_list, qps_list) {
2822 spin_lock_irqsave(&mqp->sq.lock, flags_qp);
2823 if (mqp->sq.tail != mqp->sq.head) {
2824 send_mcq = to_mcq(mqp->ibqp.send_cq);
2825 spin_lock_irqsave(&send_mcq->lock, flags_cq);
2826 if (send_mcq->mcq.comp &&
2827 mqp->ibqp.send_cq->comp_handler) {
2828 if (!send_mcq->mcq.reset_notify_added) {
2829 send_mcq->mcq.reset_notify_added = 1;
2830 list_add_tail(&send_mcq->mcq.reset_notify,
2831 &cq_notify_list);
2832 }
2833 }
2834 spin_unlock_irqrestore(&send_mcq->lock, flags_cq);
2835 }
2836 spin_unlock_irqrestore(&mqp->sq.lock, flags_qp);
2837 /* Now, handle the QP's receive queue */
2838 spin_lock_irqsave(&mqp->rq.lock, flags_qp);
2839 /* no handling is needed for SRQ */
2840 if (!mqp->ibqp.srq) {
2841 if (mqp->rq.tail != mqp->rq.head) {
2842 recv_mcq = to_mcq(mqp->ibqp.recv_cq);
2843 spin_lock_irqsave(&recv_mcq->lock, flags_cq);
2844 if (recv_mcq->mcq.comp &&
2845 mqp->ibqp.recv_cq->comp_handler) {
2846 if (!recv_mcq->mcq.reset_notify_added) {
2847 recv_mcq->mcq.reset_notify_added = 1;
2848 list_add_tail(&recv_mcq->mcq.reset_notify,
2849 &cq_notify_list);
2850 }
2851 }
2852 spin_unlock_irqrestore(&recv_mcq->lock,
2853 flags_cq);
2854 }
2855 }
2856 spin_unlock_irqrestore(&mqp->rq.lock, flags_qp);
2857 }
2858
2859 list_for_each_entry(mcq, &cq_notify_list, reset_notify) {
2860 mcq->comp(mcq);
2861 }
2862 spin_unlock_irqrestore(&ibdev->reset_flow_resource_lock, flags);
2863 pr_warn("mlx4_ib_handle_catas_error ended\n");
2864}
2865
a5750090
MS		 2866static void handle_bonded_port_state_event(struct work_struct *work)
2867{
2868 struct ib_event_work *ew =
2869 container_of(work, struct ib_event_work, work);
2870 struct mlx4_ib_dev *ibdev = ew->ib_dev;
2871 enum ib_port_state bonded_port_state = IB_PORT_NOP;
2872 int i;
2873 struct ib_event ibev;
2874
2875 kfree(ew);
2876 spin_lock_bh(&ibdev->iboe.lock);
2877 for (i = 0; i < MLX4_MAX_PORTS; ++i) {
2878 struct net_device *curr_netdev = ibdev->iboe.netdevs[i];
217e8b16 2879 enum ib_port_state curr_port_state;
a5750090 2880
217e8b16
MS		 2881 if (!curr_netdev)
2882 continue;
2883
2884 curr_port_state =
a5750090
MS		 2885 (netif_running(curr_netdev) &&
2886 netif_carrier_ok(curr_netdev)) ?
2887 IB_PORT_ACTIVE : IB_PORT_DOWN;
2888
2889 bonded_port_state = (bonded_port_state != IB_PORT_ACTIVE) ?
2890 curr_port_state : IB_PORT_ACTIVE;
2891 }
2892 spin_unlock_bh(&ibdev->iboe.lock);
2893
2894 ibev.device = &ibdev->ib_dev;
2895 ibev.element.port_num = 1;
2896 ibev.event = (bonded_port_state == IB_PORT_ACTIVE) ?
2897 IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR;
2898
2899 ib_dispatch_event(&ibev);
2900}
2901
225c7b1f 2902static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
00f5ce99 2903 enum mlx4_dev_event event, unsigned long param)
225c7b1f
RD		 2904{
2905 struct ib_event ibev;
7ff93f8b 2906 struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr);
00f5ce99
JM		 2907 struct mlx4_eqe *eqe = NULL;
2908 struct ib_event_work *ew;
fc06573d 2909 int p = 0;
00f5ce99 2910
a5750090
MS		 2911 if (mlx4_is_bonded(dev) &&
2912 ((event == MLX4_DEV_EVENT_PORT_UP) ||
2913 (event == MLX4_DEV_EVENT_PORT_DOWN))) {
2914 ew = kmalloc(sizeof(*ew), GFP_ATOMIC);
2915 if (!ew)
2916 return;
2917 INIT_WORK(&ew->work, handle_bonded_port_state_event);
2918 ew->ib_dev = ibdev;
2919 queue_work(wq, &ew->work);
2920 return;
2921 }
2922
00f5ce99
JM		 2923 if (event == MLX4_DEV_EVENT_PORT_MGMT_CHANGE)
2924 eqe = (struct mlx4_eqe *)param;
2925 else
fc06573d 2926 p = (int) param;
225c7b1f
RD		 2927
2928 switch (event) {
37608eea 2929 case MLX4_DEV_EVENT_PORT_UP:
fc06573d
JM		 2930 if (p > ibdev->num_ports)
2931 return;
a0c64a17
JM		 2932 if (mlx4_is_master(dev) &&
2933 rdma_port_get_link_layer(&ibdev->ib_dev, p) ==
2934 IB_LINK_LAYER_INFINIBAND) {
2935 mlx4_ib_invalidate_all_guid_record(ibdev, p);
2936 }
37608eea 2937 ibev.event = IB_EVENT_PORT_ACTIVE;
225c7b1f
RD		 2938 break;
2939
37608eea 2940 case MLX4_DEV_EVENT_PORT_DOWN:
fc06573d
JM		 2941 if (p > ibdev->num_ports)
2942 return;
37608eea
RD		 2943 ibev.event = IB_EVENT_PORT_ERR;
2944 break;
2945
2946 case MLX4_DEV_EVENT_CATASTROPHIC_ERROR:
3b4a8cd5 2947 ibdev->ib_active = false;
225c7b1f 2948 ibev.event = IB_EVENT_DEVICE_FATAL;
35f05dab 2949 mlx4_ib_handle_catas_error(ibdev);
225c7b1f
RD		 2950 break;
2951
00f5ce99
JM		 2952 case MLX4_DEV_EVENT_PORT_MGMT_CHANGE:
2953 ew = kmalloc(sizeof *ew, GFP_ATOMIC);
2954 if (!ew) {
2955 pr_err("failed to allocate memory for events work\n");
2956 break;
2957 }
2958
2959 INIT_WORK(&ew->work, handle_port_mgmt_change_event);
2960 memcpy(&ew->ib_eqe, eqe, sizeof *eqe);
2961 ew->ib_dev = ibdev;
992e8e6e
JM		 2962 /* need to queue only for port owner, which uses GEN_EQE */
2963 if (mlx4_is_master(dev))
2964 queue_work(wq, &ew->work);
2965 else
2966 handle_port_mgmt_change_event(&ew->work);
00f5ce99
JM		 2967 return;
2968
fc06573d
JM		 2969 case MLX4_DEV_EVENT_SLAVE_INIT:
2970 /* here, p is the slave id */
2971 do_slave_init(ibdev, p, 1);
ee59fa0d
YH		 2972 if (mlx4_is_master(dev)) {
2973 int i;
2974
2975 for (i = 1; i <= ibdev->num_ports; i++) {
2976 if (rdma_port_get_link_layer(&ibdev->ib_dev, i)
2977 == IB_LINK_LAYER_INFINIBAND)
2978 mlx4_ib_slave_alias_guid_event(ibdev,
2979 p, i,
2980 1);
2981 }
2982 }
fc06573d
JM		 2983 return;
2984
2985 case MLX4_DEV_EVENT_SLAVE_SHUTDOWN:
ee59fa0d
YH		 2986 if (mlx4_is_master(dev)) {
2987 int i;
2988
2989 for (i = 1; i <= ibdev->num_ports; i++) {
2990 if (rdma_port_get_link_layer(&ibdev->ib_dev, i)
2991 == IB_LINK_LAYER_INFINIBAND)
2992 mlx4_ib_slave_alias_guid_event(ibdev,
2993 p, i,
2994 0);
2995 }
2996 }
fc06573d
JM		 2997 /* here, p is the slave id */
2998 do_slave_init(ibdev, p, 0);
2999 return;
3000
225c7b1f
RD		 3001 default:
3002 return;
3003 }
3004
3005 ibev.device = ibdev_ptr;
a5750090 3006 ibev.element.port_num = mlx4_is_bonded(ibdev->dev) ? 1 : (u8)p;
225c7b1f
RD		 3007
3008 ib_dispatch_event(&ibev);
3009}
3010
3011static struct mlx4_interface mlx4_ib_interface = {
fa417f7b
EC		 3012 .add = mlx4_ib_add,
3013 .remove = mlx4_ib_remove,
3014 .event = mlx4_ib_event,
a5750090
MS		 3015 .protocol = MLX4_PROT_IB_IPV6,
3016 .flags = MLX4_INTFF_BONDING
225c7b1f
RD		 3017};
3018
3019static int __init mlx4_ib_init(void)
3020{
fa417f7b
EC		 3021 int err;
3022
3023 wq = create_singlethread_workqueue("mlx4_ib");
3024 if (!wq)
3025 return -ENOMEM;
3026
b9c5d6a6
OD		 3027 err = mlx4_ib_mcg_init();
3028 if (err)
3029 goto clean_wq;
3030
fa417f7b 3031 err = mlx4_register_interface(&mlx4_ib_interface);
b9c5d6a6
OD		 3032 if (err)
3033 goto clean_mcg;
fa417f7b
EC		 3034
3035 return 0;
b9c5d6a6
OD		 3036
3037clean_mcg:
3038 mlx4_ib_mcg_destroy();
3039
3040clean_wq:
3041 destroy_workqueue(wq);
3042 return err;
225c7b1f
RD		 3043}
3044
3045static void __exit mlx4_ib_cleanup(void)
3046{
3047 mlx4_unregister_interface(&mlx4_ib_interface);
b9c5d6a6 3048 mlx4_ib_mcg_destroy();
fa417f7b 3049 destroy_workqueue(wq);
225c7b1f
RD		 3050}
3051
3052module_init(mlx4_ib_init);
3053module_exit(mlx4_ib_cleanup);
Linux 6.x block layer and io_uring tree(s)