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e126ba97 | 1 | /* |
6cf0a15f | 2 | * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved. |
e126ba97 EC |
3 | * |
4 | * This software is available to you under a choice of one of two | |
5 | * licenses. You may choose to be licensed under the terms of the GNU | |
6 | * General Public License (GPL) Version 2, available from the file | |
7 | * COPYING in the main directory of this source tree, or the | |
8 | * OpenIB.org BSD license below: | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or | |
11 | * without modification, are permitted provided that the following | |
12 | * conditions are met: | |
13 | * | |
14 | * - Redistributions of source code must retain the above | |
15 | * copyright notice, this list of conditions and the following | |
16 | * disclaimer. | |
17 | * | |
18 | * - Redistributions in binary form must reproduce the above | |
19 | * copyright notice, this list of conditions and the following | |
20 | * disclaimer in the documentation and/or other materials | |
21 | * provided with the distribution. | |
22 | * | |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
30 | * SOFTWARE. | |
31 | */ | |
32 | ||
adec640e | 33 | #include <linux/highmem.h> |
e126ba97 EC |
34 | #include <linux/module.h> |
35 | #include <linux/init.h> | |
36 | #include <linux/errno.h> | |
37 | #include <linux/pci.h> | |
38 | #include <linux/dma-mapping.h> | |
39 | #include <linux/slab.h> | |
40 | #include <linux/io-mapping.h> | |
41 | #include <linux/sched.h> | |
42 | #include <rdma/ib_user_verbs.h> | |
3f89a643 | 43 | #include <rdma/ib_addr.h> |
2811ba51 | 44 | #include <rdma/ib_cache.h> |
1b5daf11 | 45 | #include <linux/mlx5/vport.h> |
e126ba97 EC |
46 | #include <rdma/ib_smi.h> |
47 | #include <rdma/ib_umem.h> | |
48 | #include "user.h" | |
49 | #include "mlx5_ib.h" | |
50 | ||
51 | #define DRIVER_NAME "mlx5_ib" | |
169a1d85 AV |
52 | #define DRIVER_VERSION "2.2-1" |
53 | #define DRIVER_RELDATE "Feb 2014" | |
e126ba97 EC |
54 | |
55 | MODULE_AUTHOR("Eli Cohen <eli@mellanox.com>"); | |
56 | MODULE_DESCRIPTION("Mellanox Connect-IB HCA IB driver"); | |
57 | MODULE_LICENSE("Dual BSD/GPL"); | |
58 | MODULE_VERSION(DRIVER_VERSION); | |
59 | ||
9603b61d JM |
60 | static int deprecated_prof_sel = 2; |
61 | module_param_named(prof_sel, deprecated_prof_sel, int, 0444); | |
62 | MODULE_PARM_DESC(prof_sel, "profile selector. Deprecated here. Moved to module mlx5_core"); | |
e126ba97 EC |
63 | |
64 | static char mlx5_version[] = | |
65 | DRIVER_NAME ": Mellanox Connect-IB Infiniband driver v" | |
66 | DRIVER_VERSION " (" DRIVER_RELDATE ")\n"; | |
67 | ||
da7525d2 EBE |
68 | enum { |
69 | MLX5_ATOMIC_SIZE_QP_8BYTES = 1 << 3, | |
70 | }; | |
71 | ||
1b5daf11 | 72 | static enum rdma_link_layer |
ebd61f68 | 73 | mlx5_port_type_cap_to_rdma_ll(int port_type_cap) |
1b5daf11 | 74 | { |
ebd61f68 | 75 | switch (port_type_cap) { |
1b5daf11 MD |
76 | case MLX5_CAP_PORT_TYPE_IB: |
77 | return IB_LINK_LAYER_INFINIBAND; | |
78 | case MLX5_CAP_PORT_TYPE_ETH: | |
79 | return IB_LINK_LAYER_ETHERNET; | |
80 | default: | |
81 | return IB_LINK_LAYER_UNSPECIFIED; | |
82 | } | |
83 | } | |
84 | ||
ebd61f68 AS |
85 | static enum rdma_link_layer |
86 | mlx5_ib_port_link_layer(struct ib_device *device, u8 port_num) | |
87 | { | |
88 | struct mlx5_ib_dev *dev = to_mdev(device); | |
89 | int port_type_cap = MLX5_CAP_GEN(dev->mdev, port_type); | |
90 | ||
91 | return mlx5_port_type_cap_to_rdma_ll(port_type_cap); | |
92 | } | |
93 | ||
fc24fc5e AS |
94 | static int mlx5_netdev_event(struct notifier_block *this, |
95 | unsigned long event, void *ptr) | |
96 | { | |
97 | struct net_device *ndev = netdev_notifier_info_to_dev(ptr); | |
98 | struct mlx5_ib_dev *ibdev = container_of(this, struct mlx5_ib_dev, | |
99 | roce.nb); | |
100 | ||
101 | if ((event != NETDEV_UNREGISTER) && (event != NETDEV_REGISTER)) | |
102 | return NOTIFY_DONE; | |
103 | ||
104 | write_lock(&ibdev->roce.netdev_lock); | |
105 | if (ndev->dev.parent == &ibdev->mdev->pdev->dev) | |
106 | ibdev->roce.netdev = (event == NETDEV_UNREGISTER) ? NULL : ndev; | |
107 | write_unlock(&ibdev->roce.netdev_lock); | |
108 | ||
109 | return NOTIFY_DONE; | |
110 | } | |
111 | ||
112 | static struct net_device *mlx5_ib_get_netdev(struct ib_device *device, | |
113 | u8 port_num) | |
114 | { | |
115 | struct mlx5_ib_dev *ibdev = to_mdev(device); | |
116 | struct net_device *ndev; | |
117 | ||
118 | /* Ensure ndev does not disappear before we invoke dev_hold() | |
119 | */ | |
120 | read_lock(&ibdev->roce.netdev_lock); | |
121 | ndev = ibdev->roce.netdev; | |
122 | if (ndev) | |
123 | dev_hold(ndev); | |
124 | read_unlock(&ibdev->roce.netdev_lock); | |
125 | ||
126 | return ndev; | |
127 | } | |
128 | ||
3f89a643 AS |
129 | static int mlx5_query_port_roce(struct ib_device *device, u8 port_num, |
130 | struct ib_port_attr *props) | |
131 | { | |
132 | struct mlx5_ib_dev *dev = to_mdev(device); | |
133 | struct net_device *ndev; | |
134 | enum ib_mtu ndev_ib_mtu; | |
c876a1b7 | 135 | u16 qkey_viol_cntr; |
3f89a643 AS |
136 | |
137 | memset(props, 0, sizeof(*props)); | |
138 | ||
139 | props->port_cap_flags |= IB_PORT_CM_SUP; | |
140 | props->port_cap_flags |= IB_PORT_IP_BASED_GIDS; | |
141 | ||
142 | props->gid_tbl_len = MLX5_CAP_ROCE(dev->mdev, | |
143 | roce_address_table_size); | |
144 | props->max_mtu = IB_MTU_4096; | |
145 | props->max_msg_sz = 1 << MLX5_CAP_GEN(dev->mdev, log_max_msg); | |
146 | props->pkey_tbl_len = 1; | |
147 | props->state = IB_PORT_DOWN; | |
148 | props->phys_state = 3; | |
149 | ||
c876a1b7 LR |
150 | mlx5_query_nic_vport_qkey_viol_cntr(dev->mdev, &qkey_viol_cntr); |
151 | props->qkey_viol_cntr = qkey_viol_cntr; | |
3f89a643 AS |
152 | |
153 | ndev = mlx5_ib_get_netdev(device, port_num); | |
154 | if (!ndev) | |
155 | return 0; | |
156 | ||
157 | if (netif_running(ndev) && netif_carrier_ok(ndev)) { | |
158 | props->state = IB_PORT_ACTIVE; | |
159 | props->phys_state = 5; | |
160 | } | |
161 | ||
162 | ndev_ib_mtu = iboe_get_mtu(ndev->mtu); | |
163 | ||
164 | dev_put(ndev); | |
165 | ||
166 | props->active_mtu = min(props->max_mtu, ndev_ib_mtu); | |
167 | ||
168 | props->active_width = IB_WIDTH_4X; /* TODO */ | |
169 | props->active_speed = IB_SPEED_QDR; /* TODO */ | |
170 | ||
171 | return 0; | |
172 | } | |
173 | ||
3cca2606 AS |
174 | static void ib_gid_to_mlx5_roce_addr(const union ib_gid *gid, |
175 | const struct ib_gid_attr *attr, | |
176 | void *mlx5_addr) | |
177 | { | |
178 | #define MLX5_SET_RA(p, f, v) MLX5_SET(roce_addr_layout, p, f, v) | |
179 | char *mlx5_addr_l3_addr = MLX5_ADDR_OF(roce_addr_layout, mlx5_addr, | |
180 | source_l3_address); | |
181 | void *mlx5_addr_mac = MLX5_ADDR_OF(roce_addr_layout, mlx5_addr, | |
182 | source_mac_47_32); | |
183 | ||
184 | if (!gid) | |
185 | return; | |
186 | ||
187 | ether_addr_copy(mlx5_addr_mac, attr->ndev->dev_addr); | |
188 | ||
189 | if (is_vlan_dev(attr->ndev)) { | |
190 | MLX5_SET_RA(mlx5_addr, vlan_valid, 1); | |
191 | MLX5_SET_RA(mlx5_addr, vlan_id, vlan_dev_vlan_id(attr->ndev)); | |
192 | } | |
193 | ||
194 | switch (attr->gid_type) { | |
195 | case IB_GID_TYPE_IB: | |
196 | MLX5_SET_RA(mlx5_addr, roce_version, MLX5_ROCE_VERSION_1); | |
197 | break; | |
198 | case IB_GID_TYPE_ROCE_UDP_ENCAP: | |
199 | MLX5_SET_RA(mlx5_addr, roce_version, MLX5_ROCE_VERSION_2); | |
200 | break; | |
201 | ||
202 | default: | |
203 | WARN_ON(true); | |
204 | } | |
205 | ||
206 | if (attr->gid_type != IB_GID_TYPE_IB) { | |
207 | if (ipv6_addr_v4mapped((void *)gid)) | |
208 | MLX5_SET_RA(mlx5_addr, roce_l3_type, | |
209 | MLX5_ROCE_L3_TYPE_IPV4); | |
210 | else | |
211 | MLX5_SET_RA(mlx5_addr, roce_l3_type, | |
212 | MLX5_ROCE_L3_TYPE_IPV6); | |
213 | } | |
214 | ||
215 | if ((attr->gid_type == IB_GID_TYPE_IB) || | |
216 | !ipv6_addr_v4mapped((void *)gid)) | |
217 | memcpy(mlx5_addr_l3_addr, gid, sizeof(*gid)); | |
218 | else | |
219 | memcpy(&mlx5_addr_l3_addr[12], &gid->raw[12], 4); | |
220 | } | |
221 | ||
222 | static int set_roce_addr(struct ib_device *device, u8 port_num, | |
223 | unsigned int index, | |
224 | const union ib_gid *gid, | |
225 | const struct ib_gid_attr *attr) | |
226 | { | |
227 | struct mlx5_ib_dev *dev = to_mdev(device); | |
228 | u32 in[MLX5_ST_SZ_DW(set_roce_address_in)]; | |
229 | u32 out[MLX5_ST_SZ_DW(set_roce_address_out)]; | |
230 | void *in_addr = MLX5_ADDR_OF(set_roce_address_in, in, roce_address); | |
231 | enum rdma_link_layer ll = mlx5_ib_port_link_layer(device, port_num); | |
232 | ||
233 | if (ll != IB_LINK_LAYER_ETHERNET) | |
234 | return -EINVAL; | |
235 | ||
236 | memset(in, 0, sizeof(in)); | |
237 | ||
238 | ib_gid_to_mlx5_roce_addr(gid, attr, in_addr); | |
239 | ||
240 | MLX5_SET(set_roce_address_in, in, roce_address_index, index); | |
241 | MLX5_SET(set_roce_address_in, in, opcode, MLX5_CMD_OP_SET_ROCE_ADDRESS); | |
242 | ||
243 | memset(out, 0, sizeof(out)); | |
244 | return mlx5_cmd_exec(dev->mdev, in, sizeof(in), out, sizeof(out)); | |
245 | } | |
246 | ||
247 | static int mlx5_ib_add_gid(struct ib_device *device, u8 port_num, | |
248 | unsigned int index, const union ib_gid *gid, | |
249 | const struct ib_gid_attr *attr, | |
250 | __always_unused void **context) | |
251 | { | |
252 | return set_roce_addr(device, port_num, index, gid, attr); | |
253 | } | |
254 | ||
255 | static int mlx5_ib_del_gid(struct ib_device *device, u8 port_num, | |
256 | unsigned int index, __always_unused void **context) | |
257 | { | |
258 | return set_roce_addr(device, port_num, index, NULL, NULL); | |
259 | } | |
260 | ||
2811ba51 AS |
261 | __be16 mlx5_get_roce_udp_sport(struct mlx5_ib_dev *dev, u8 port_num, |
262 | int index) | |
263 | { | |
264 | struct ib_gid_attr attr; | |
265 | union ib_gid gid; | |
266 | ||
267 | if (ib_get_cached_gid(&dev->ib_dev, port_num, index, &gid, &attr)) | |
268 | return 0; | |
269 | ||
270 | if (!attr.ndev) | |
271 | return 0; | |
272 | ||
273 | dev_put(attr.ndev); | |
274 | ||
275 | if (attr.gid_type != IB_GID_TYPE_ROCE_UDP_ENCAP) | |
276 | return 0; | |
277 | ||
278 | return cpu_to_be16(MLX5_CAP_ROCE(dev->mdev, r_roce_min_src_udp_port)); | |
279 | } | |
280 | ||
1b5daf11 MD |
281 | static int mlx5_use_mad_ifc(struct mlx5_ib_dev *dev) |
282 | { | |
283 | return !dev->mdev->issi; | |
284 | } | |
285 | ||
286 | enum { | |
287 | MLX5_VPORT_ACCESS_METHOD_MAD, | |
288 | MLX5_VPORT_ACCESS_METHOD_HCA, | |
289 | MLX5_VPORT_ACCESS_METHOD_NIC, | |
290 | }; | |
291 | ||
292 | static int mlx5_get_vport_access_method(struct ib_device *ibdev) | |
293 | { | |
294 | if (mlx5_use_mad_ifc(to_mdev(ibdev))) | |
295 | return MLX5_VPORT_ACCESS_METHOD_MAD; | |
296 | ||
ebd61f68 | 297 | if (mlx5_ib_port_link_layer(ibdev, 1) == |
1b5daf11 MD |
298 | IB_LINK_LAYER_ETHERNET) |
299 | return MLX5_VPORT_ACCESS_METHOD_NIC; | |
300 | ||
301 | return MLX5_VPORT_ACCESS_METHOD_HCA; | |
302 | } | |
303 | ||
da7525d2 EBE |
304 | static void get_atomic_caps(struct mlx5_ib_dev *dev, |
305 | struct ib_device_attr *props) | |
306 | { | |
307 | u8 tmp; | |
308 | u8 atomic_operations = MLX5_CAP_ATOMIC(dev->mdev, atomic_operations); | |
309 | u8 atomic_size_qp = MLX5_CAP_ATOMIC(dev->mdev, atomic_size_qp); | |
310 | u8 atomic_req_8B_endianness_mode = | |
311 | MLX5_CAP_ATOMIC(dev->mdev, atomic_req_8B_endianess_mode); | |
312 | ||
313 | /* Check if HW supports 8 bytes standard atomic operations and capable | |
314 | * of host endianness respond | |
315 | */ | |
316 | tmp = MLX5_ATOMIC_OPS_CMP_SWAP | MLX5_ATOMIC_OPS_FETCH_ADD; | |
317 | if (((atomic_operations & tmp) == tmp) && | |
318 | (atomic_size_qp & MLX5_ATOMIC_SIZE_QP_8BYTES) && | |
319 | (atomic_req_8B_endianness_mode)) { | |
320 | props->atomic_cap = IB_ATOMIC_HCA; | |
321 | } else { | |
322 | props->atomic_cap = IB_ATOMIC_NONE; | |
323 | } | |
324 | } | |
325 | ||
1b5daf11 MD |
326 | static int mlx5_query_system_image_guid(struct ib_device *ibdev, |
327 | __be64 *sys_image_guid) | |
328 | { | |
329 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
330 | struct mlx5_core_dev *mdev = dev->mdev; | |
331 | u64 tmp; | |
332 | int err; | |
333 | ||
334 | switch (mlx5_get_vport_access_method(ibdev)) { | |
335 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
336 | return mlx5_query_mad_ifc_system_image_guid(ibdev, | |
337 | sys_image_guid); | |
338 | ||
339 | case MLX5_VPORT_ACCESS_METHOD_HCA: | |
340 | err = mlx5_query_hca_vport_system_image_guid(mdev, &tmp); | |
3f89a643 AS |
341 | break; |
342 | ||
343 | case MLX5_VPORT_ACCESS_METHOD_NIC: | |
344 | err = mlx5_query_nic_vport_system_image_guid(mdev, &tmp); | |
345 | break; | |
1b5daf11 MD |
346 | |
347 | default: | |
348 | return -EINVAL; | |
349 | } | |
3f89a643 AS |
350 | |
351 | if (!err) | |
352 | *sys_image_guid = cpu_to_be64(tmp); | |
353 | ||
354 | return err; | |
355 | ||
1b5daf11 MD |
356 | } |
357 | ||
358 | static int mlx5_query_max_pkeys(struct ib_device *ibdev, | |
359 | u16 *max_pkeys) | |
360 | { | |
361 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
362 | struct mlx5_core_dev *mdev = dev->mdev; | |
363 | ||
364 | switch (mlx5_get_vport_access_method(ibdev)) { | |
365 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
366 | return mlx5_query_mad_ifc_max_pkeys(ibdev, max_pkeys); | |
367 | ||
368 | case MLX5_VPORT_ACCESS_METHOD_HCA: | |
369 | case MLX5_VPORT_ACCESS_METHOD_NIC: | |
370 | *max_pkeys = mlx5_to_sw_pkey_sz(MLX5_CAP_GEN(mdev, | |
371 | pkey_table_size)); | |
372 | return 0; | |
373 | ||
374 | default: | |
375 | return -EINVAL; | |
376 | } | |
377 | } | |
378 | ||
379 | static int mlx5_query_vendor_id(struct ib_device *ibdev, | |
380 | u32 *vendor_id) | |
381 | { | |
382 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
383 | ||
384 | switch (mlx5_get_vport_access_method(ibdev)) { | |
385 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
386 | return mlx5_query_mad_ifc_vendor_id(ibdev, vendor_id); | |
387 | ||
388 | case MLX5_VPORT_ACCESS_METHOD_HCA: | |
389 | case MLX5_VPORT_ACCESS_METHOD_NIC: | |
390 | return mlx5_core_query_vendor_id(dev->mdev, vendor_id); | |
391 | ||
392 | default: | |
393 | return -EINVAL; | |
394 | } | |
395 | } | |
396 | ||
397 | static int mlx5_query_node_guid(struct mlx5_ib_dev *dev, | |
398 | __be64 *node_guid) | |
399 | { | |
400 | u64 tmp; | |
401 | int err; | |
402 | ||
403 | switch (mlx5_get_vport_access_method(&dev->ib_dev)) { | |
404 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
405 | return mlx5_query_mad_ifc_node_guid(dev, node_guid); | |
406 | ||
407 | case MLX5_VPORT_ACCESS_METHOD_HCA: | |
408 | err = mlx5_query_hca_vport_node_guid(dev->mdev, &tmp); | |
3f89a643 AS |
409 | break; |
410 | ||
411 | case MLX5_VPORT_ACCESS_METHOD_NIC: | |
412 | err = mlx5_query_nic_vport_node_guid(dev->mdev, &tmp); | |
413 | break; | |
1b5daf11 MD |
414 | |
415 | default: | |
416 | return -EINVAL; | |
417 | } | |
3f89a643 AS |
418 | |
419 | if (!err) | |
420 | *node_guid = cpu_to_be64(tmp); | |
421 | ||
422 | return err; | |
1b5daf11 MD |
423 | } |
424 | ||
425 | struct mlx5_reg_node_desc { | |
426 | u8 desc[64]; | |
427 | }; | |
428 | ||
429 | static int mlx5_query_node_desc(struct mlx5_ib_dev *dev, char *node_desc) | |
430 | { | |
431 | struct mlx5_reg_node_desc in; | |
432 | ||
433 | if (mlx5_use_mad_ifc(dev)) | |
434 | return mlx5_query_mad_ifc_node_desc(dev, node_desc); | |
435 | ||
436 | memset(&in, 0, sizeof(in)); | |
437 | ||
438 | return mlx5_core_access_reg(dev->mdev, &in, sizeof(in), node_desc, | |
439 | sizeof(struct mlx5_reg_node_desc), | |
440 | MLX5_REG_NODE_DESC, 0, 0); | |
441 | } | |
442 | ||
e126ba97 | 443 | static int mlx5_ib_query_device(struct ib_device *ibdev, |
2528e33e MB |
444 | struct ib_device_attr *props, |
445 | struct ib_udata *uhw) | |
e126ba97 EC |
446 | { |
447 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
938fe83c | 448 | struct mlx5_core_dev *mdev = dev->mdev; |
e126ba97 EC |
449 | int err = -ENOMEM; |
450 | int max_rq_sg; | |
451 | int max_sq_sg; | |
e0238a6a | 452 | u64 min_page_size = 1ull << MLX5_CAP_GEN(mdev, log_pg_sz); |
e126ba97 | 453 | |
2528e33e MB |
454 | if (uhw->inlen || uhw->outlen) |
455 | return -EINVAL; | |
456 | ||
1b5daf11 MD |
457 | memset(props, 0, sizeof(*props)); |
458 | err = mlx5_query_system_image_guid(ibdev, | |
459 | &props->sys_image_guid); | |
460 | if (err) | |
461 | return err; | |
e126ba97 | 462 | |
1b5daf11 | 463 | err = mlx5_query_max_pkeys(ibdev, &props->max_pkeys); |
e126ba97 | 464 | if (err) |
1b5daf11 | 465 | return err; |
e126ba97 | 466 | |
1b5daf11 MD |
467 | err = mlx5_query_vendor_id(ibdev, &props->vendor_id); |
468 | if (err) | |
469 | return err; | |
e126ba97 | 470 | |
9603b61d JM |
471 | props->fw_ver = ((u64)fw_rev_maj(dev->mdev) << 32) | |
472 | (fw_rev_min(dev->mdev) << 16) | | |
473 | fw_rev_sub(dev->mdev); | |
e126ba97 EC |
474 | props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | |
475 | IB_DEVICE_PORT_ACTIVE_EVENT | | |
476 | IB_DEVICE_SYS_IMAGE_GUID | | |
1a4c3a3d | 477 | IB_DEVICE_RC_RNR_NAK_GEN; |
938fe83c SM |
478 | |
479 | if (MLX5_CAP_GEN(mdev, pkv)) | |
e126ba97 | 480 | props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; |
938fe83c | 481 | if (MLX5_CAP_GEN(mdev, qkv)) |
e126ba97 | 482 | props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; |
938fe83c | 483 | if (MLX5_CAP_GEN(mdev, apm)) |
e126ba97 | 484 | props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; |
938fe83c | 485 | if (MLX5_CAP_GEN(mdev, xrc)) |
e126ba97 EC |
486 | props->device_cap_flags |= IB_DEVICE_XRC; |
487 | props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; | |
938fe83c | 488 | if (MLX5_CAP_GEN(mdev, sho)) { |
2dea9094 SG |
489 | props->device_cap_flags |= IB_DEVICE_SIGNATURE_HANDOVER; |
490 | /* At this stage no support for signature handover */ | |
491 | props->sig_prot_cap = IB_PROT_T10DIF_TYPE_1 | | |
492 | IB_PROT_T10DIF_TYPE_2 | | |
493 | IB_PROT_T10DIF_TYPE_3; | |
494 | props->sig_guard_cap = IB_GUARD_T10DIF_CRC | | |
495 | IB_GUARD_T10DIF_CSUM; | |
496 | } | |
938fe83c | 497 | if (MLX5_CAP_GEN(mdev, block_lb_mc)) |
f360d88a | 498 | props->device_cap_flags |= IB_DEVICE_BLOCK_MULTICAST_LOOPBACK; |
e126ba97 | 499 | |
88115fe7 BW |
500 | if (MLX5_CAP_GEN(dev->mdev, eth_net_offloads) && |
501 | (MLX5_CAP_ETH(dev->mdev, csum_cap))) | |
502 | props->device_cap_flags |= IB_DEVICE_RAW_IP_CSUM; | |
503 | ||
1b5daf11 MD |
504 | props->vendor_part_id = mdev->pdev->device; |
505 | props->hw_ver = mdev->pdev->revision; | |
e126ba97 EC |
506 | |
507 | props->max_mr_size = ~0ull; | |
e0238a6a | 508 | props->page_size_cap = ~(min_page_size - 1); |
938fe83c SM |
509 | props->max_qp = 1 << MLX5_CAP_GEN(mdev, log_max_qp); |
510 | props->max_qp_wr = 1 << MLX5_CAP_GEN(mdev, log_max_qp_sz); | |
511 | max_rq_sg = MLX5_CAP_GEN(mdev, max_wqe_sz_rq) / | |
512 | sizeof(struct mlx5_wqe_data_seg); | |
513 | max_sq_sg = (MLX5_CAP_GEN(mdev, max_wqe_sz_sq) - | |
514 | sizeof(struct mlx5_wqe_ctrl_seg)) / | |
515 | sizeof(struct mlx5_wqe_data_seg); | |
e126ba97 | 516 | props->max_sge = min(max_rq_sg, max_sq_sg); |
18ebd407 | 517 | props->max_sge_rd = props->max_sge; |
938fe83c | 518 | props->max_cq = 1 << MLX5_CAP_GEN(mdev, log_max_cq); |
9f177686 | 519 | props->max_cqe = (1 << MLX5_CAP_GEN(mdev, log_max_cq_sz)) - 1; |
938fe83c SM |
520 | props->max_mr = 1 << MLX5_CAP_GEN(mdev, log_max_mkey); |
521 | props->max_pd = 1 << MLX5_CAP_GEN(mdev, log_max_pd); | |
522 | props->max_qp_rd_atom = 1 << MLX5_CAP_GEN(mdev, log_max_ra_req_qp); | |
523 | props->max_qp_init_rd_atom = 1 << MLX5_CAP_GEN(mdev, log_max_ra_res_qp); | |
524 | props->max_srq = 1 << MLX5_CAP_GEN(mdev, log_max_srq); | |
525 | props->max_srq_wr = (1 << MLX5_CAP_GEN(mdev, log_max_srq_sz)) - 1; | |
526 | props->local_ca_ack_delay = MLX5_CAP_GEN(mdev, local_ca_ack_delay); | |
e126ba97 | 527 | props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; |
e126ba97 EC |
528 | props->max_srq_sge = max_rq_sg - 1; |
529 | props->max_fast_reg_page_list_len = (unsigned int)-1; | |
da7525d2 | 530 | get_atomic_caps(dev, props); |
81bea28f | 531 | props->masked_atomic_cap = IB_ATOMIC_NONE; |
938fe83c SM |
532 | props->max_mcast_grp = 1 << MLX5_CAP_GEN(mdev, log_max_mcg); |
533 | props->max_mcast_qp_attach = MLX5_CAP_GEN(mdev, max_qp_mcg); | |
e126ba97 EC |
534 | props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * |
535 | props->max_mcast_grp; | |
536 | props->max_map_per_fmr = INT_MAX; /* no limit in ConnectIB */ | |
7c60bcbb MB |
537 | props->hca_core_clock = MLX5_CAP_GEN(mdev, device_frequency_khz); |
538 | props->timestamp_mask = 0x7FFFFFFFFFFFFFFFULL; | |
e126ba97 | 539 | |
8cdd312c | 540 | #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING |
938fe83c | 541 | if (MLX5_CAP_GEN(mdev, pg)) |
8cdd312c HE |
542 | props->device_cap_flags |= IB_DEVICE_ON_DEMAND_PAGING; |
543 | props->odp_caps = dev->odp_caps; | |
544 | #endif | |
545 | ||
051f2630 LR |
546 | if (MLX5_CAP_GEN(mdev, cd)) |
547 | props->device_cap_flags |= IB_DEVICE_CROSS_CHANNEL; | |
548 | ||
1b5daf11 | 549 | return 0; |
e126ba97 EC |
550 | } |
551 | ||
1b5daf11 MD |
552 | enum mlx5_ib_width { |
553 | MLX5_IB_WIDTH_1X = 1 << 0, | |
554 | MLX5_IB_WIDTH_2X = 1 << 1, | |
555 | MLX5_IB_WIDTH_4X = 1 << 2, | |
556 | MLX5_IB_WIDTH_8X = 1 << 3, | |
557 | MLX5_IB_WIDTH_12X = 1 << 4 | |
558 | }; | |
559 | ||
560 | static int translate_active_width(struct ib_device *ibdev, u8 active_width, | |
561 | u8 *ib_width) | |
e126ba97 EC |
562 | { |
563 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
1b5daf11 MD |
564 | int err = 0; |
565 | ||
566 | if (active_width & MLX5_IB_WIDTH_1X) { | |
567 | *ib_width = IB_WIDTH_1X; | |
568 | } else if (active_width & MLX5_IB_WIDTH_2X) { | |
569 | mlx5_ib_dbg(dev, "active_width %d is not supported by IB spec\n", | |
570 | (int)active_width); | |
571 | err = -EINVAL; | |
572 | } else if (active_width & MLX5_IB_WIDTH_4X) { | |
573 | *ib_width = IB_WIDTH_4X; | |
574 | } else if (active_width & MLX5_IB_WIDTH_8X) { | |
575 | *ib_width = IB_WIDTH_8X; | |
576 | } else if (active_width & MLX5_IB_WIDTH_12X) { | |
577 | *ib_width = IB_WIDTH_12X; | |
578 | } else { | |
579 | mlx5_ib_dbg(dev, "Invalid active_width %d\n", | |
580 | (int)active_width); | |
581 | err = -EINVAL; | |
e126ba97 EC |
582 | } |
583 | ||
1b5daf11 MD |
584 | return err; |
585 | } | |
e126ba97 | 586 | |
1b5daf11 MD |
587 | static int mlx5_mtu_to_ib_mtu(int mtu) |
588 | { | |
589 | switch (mtu) { | |
590 | case 256: return 1; | |
591 | case 512: return 2; | |
592 | case 1024: return 3; | |
593 | case 2048: return 4; | |
594 | case 4096: return 5; | |
595 | default: | |
596 | pr_warn("invalid mtu\n"); | |
597 | return -1; | |
e126ba97 | 598 | } |
1b5daf11 | 599 | } |
e126ba97 | 600 | |
1b5daf11 MD |
601 | enum ib_max_vl_num { |
602 | __IB_MAX_VL_0 = 1, | |
603 | __IB_MAX_VL_0_1 = 2, | |
604 | __IB_MAX_VL_0_3 = 3, | |
605 | __IB_MAX_VL_0_7 = 4, | |
606 | __IB_MAX_VL_0_14 = 5, | |
607 | }; | |
e126ba97 | 608 | |
1b5daf11 MD |
609 | enum mlx5_vl_hw_cap { |
610 | MLX5_VL_HW_0 = 1, | |
611 | MLX5_VL_HW_0_1 = 2, | |
612 | MLX5_VL_HW_0_2 = 3, | |
613 | MLX5_VL_HW_0_3 = 4, | |
614 | MLX5_VL_HW_0_4 = 5, | |
615 | MLX5_VL_HW_0_5 = 6, | |
616 | MLX5_VL_HW_0_6 = 7, | |
617 | MLX5_VL_HW_0_7 = 8, | |
618 | MLX5_VL_HW_0_14 = 15 | |
619 | }; | |
e126ba97 | 620 | |
1b5daf11 MD |
621 | static int translate_max_vl_num(struct ib_device *ibdev, u8 vl_hw_cap, |
622 | u8 *max_vl_num) | |
623 | { | |
624 | switch (vl_hw_cap) { | |
625 | case MLX5_VL_HW_0: | |
626 | *max_vl_num = __IB_MAX_VL_0; | |
627 | break; | |
628 | case MLX5_VL_HW_0_1: | |
629 | *max_vl_num = __IB_MAX_VL_0_1; | |
630 | break; | |
631 | case MLX5_VL_HW_0_3: | |
632 | *max_vl_num = __IB_MAX_VL_0_3; | |
633 | break; | |
634 | case MLX5_VL_HW_0_7: | |
635 | *max_vl_num = __IB_MAX_VL_0_7; | |
636 | break; | |
637 | case MLX5_VL_HW_0_14: | |
638 | *max_vl_num = __IB_MAX_VL_0_14; | |
639 | break; | |
e126ba97 | 640 | |
1b5daf11 MD |
641 | default: |
642 | return -EINVAL; | |
e126ba97 | 643 | } |
e126ba97 | 644 | |
1b5daf11 | 645 | return 0; |
e126ba97 EC |
646 | } |
647 | ||
1b5daf11 MD |
648 | static int mlx5_query_hca_port(struct ib_device *ibdev, u8 port, |
649 | struct ib_port_attr *props) | |
e126ba97 | 650 | { |
1b5daf11 MD |
651 | struct mlx5_ib_dev *dev = to_mdev(ibdev); |
652 | struct mlx5_core_dev *mdev = dev->mdev; | |
653 | struct mlx5_hca_vport_context *rep; | |
654 | int max_mtu; | |
655 | int oper_mtu; | |
656 | int err; | |
657 | u8 ib_link_width_oper; | |
658 | u8 vl_hw_cap; | |
e126ba97 | 659 | |
1b5daf11 MD |
660 | rep = kzalloc(sizeof(*rep), GFP_KERNEL); |
661 | if (!rep) { | |
662 | err = -ENOMEM; | |
e126ba97 | 663 | goto out; |
e126ba97 | 664 | } |
e126ba97 | 665 | |
1b5daf11 | 666 | memset(props, 0, sizeof(*props)); |
e126ba97 | 667 | |
1b5daf11 | 668 | err = mlx5_query_hca_vport_context(mdev, 0, port, 0, rep); |
e126ba97 EC |
669 | if (err) |
670 | goto out; | |
671 | ||
1b5daf11 MD |
672 | props->lid = rep->lid; |
673 | props->lmc = rep->lmc; | |
674 | props->sm_lid = rep->sm_lid; | |
675 | props->sm_sl = rep->sm_sl; | |
676 | props->state = rep->vport_state; | |
677 | props->phys_state = rep->port_physical_state; | |
678 | props->port_cap_flags = rep->cap_mask1; | |
679 | props->gid_tbl_len = mlx5_get_gid_table_len(MLX5_CAP_GEN(mdev, gid_table_size)); | |
680 | props->max_msg_sz = 1 << MLX5_CAP_GEN(mdev, log_max_msg); | |
681 | props->pkey_tbl_len = mlx5_to_sw_pkey_sz(MLX5_CAP_GEN(mdev, pkey_table_size)); | |
682 | props->bad_pkey_cntr = rep->pkey_violation_counter; | |
683 | props->qkey_viol_cntr = rep->qkey_violation_counter; | |
684 | props->subnet_timeout = rep->subnet_timeout; | |
685 | props->init_type_reply = rep->init_type_reply; | |
e126ba97 | 686 | |
1b5daf11 MD |
687 | err = mlx5_query_port_link_width_oper(mdev, &ib_link_width_oper, port); |
688 | if (err) | |
e126ba97 | 689 | goto out; |
e126ba97 | 690 | |
1b5daf11 MD |
691 | err = translate_active_width(ibdev, ib_link_width_oper, |
692 | &props->active_width); | |
693 | if (err) | |
694 | goto out; | |
695 | err = mlx5_query_port_proto_oper(mdev, &props->active_speed, MLX5_PTYS_IB, | |
696 | port); | |
e126ba97 EC |
697 | if (err) |
698 | goto out; | |
699 | ||
facc9699 | 700 | mlx5_query_port_max_mtu(mdev, &max_mtu, port); |
e126ba97 | 701 | |
1b5daf11 | 702 | props->max_mtu = mlx5_mtu_to_ib_mtu(max_mtu); |
e126ba97 | 703 | |
facc9699 | 704 | mlx5_query_port_oper_mtu(mdev, &oper_mtu, port); |
e126ba97 | 705 | |
1b5daf11 | 706 | props->active_mtu = mlx5_mtu_to_ib_mtu(oper_mtu); |
e126ba97 | 707 | |
1b5daf11 MD |
708 | err = mlx5_query_port_vl_hw_cap(mdev, &vl_hw_cap, port); |
709 | if (err) | |
710 | goto out; | |
e126ba97 | 711 | |
1b5daf11 MD |
712 | err = translate_max_vl_num(ibdev, vl_hw_cap, |
713 | &props->max_vl_num); | |
e126ba97 | 714 | out: |
1b5daf11 | 715 | kfree(rep); |
e126ba97 EC |
716 | return err; |
717 | } | |
718 | ||
1b5daf11 MD |
719 | int mlx5_ib_query_port(struct ib_device *ibdev, u8 port, |
720 | struct ib_port_attr *props) | |
e126ba97 | 721 | { |
1b5daf11 MD |
722 | switch (mlx5_get_vport_access_method(ibdev)) { |
723 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
724 | return mlx5_query_mad_ifc_port(ibdev, port, props); | |
e126ba97 | 725 | |
1b5daf11 MD |
726 | case MLX5_VPORT_ACCESS_METHOD_HCA: |
727 | return mlx5_query_hca_port(ibdev, port, props); | |
e126ba97 | 728 | |
3f89a643 AS |
729 | case MLX5_VPORT_ACCESS_METHOD_NIC: |
730 | return mlx5_query_port_roce(ibdev, port, props); | |
731 | ||
1b5daf11 MD |
732 | default: |
733 | return -EINVAL; | |
734 | } | |
735 | } | |
e126ba97 | 736 | |
1b5daf11 MD |
737 | static int mlx5_ib_query_gid(struct ib_device *ibdev, u8 port, int index, |
738 | union ib_gid *gid) | |
739 | { | |
740 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
741 | struct mlx5_core_dev *mdev = dev->mdev; | |
e126ba97 | 742 | |
1b5daf11 MD |
743 | switch (mlx5_get_vport_access_method(ibdev)) { |
744 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
745 | return mlx5_query_mad_ifc_gids(ibdev, port, index, gid); | |
e126ba97 | 746 | |
1b5daf11 MD |
747 | case MLX5_VPORT_ACCESS_METHOD_HCA: |
748 | return mlx5_query_hca_vport_gid(mdev, 0, port, 0, index, gid); | |
749 | ||
750 | default: | |
751 | return -EINVAL; | |
752 | } | |
e126ba97 | 753 | |
e126ba97 EC |
754 | } |
755 | ||
1b5daf11 MD |
756 | static int mlx5_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, |
757 | u16 *pkey) | |
758 | { | |
759 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
760 | struct mlx5_core_dev *mdev = dev->mdev; | |
761 | ||
762 | switch (mlx5_get_vport_access_method(ibdev)) { | |
763 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
764 | return mlx5_query_mad_ifc_pkey(ibdev, port, index, pkey); | |
765 | ||
766 | case MLX5_VPORT_ACCESS_METHOD_HCA: | |
767 | case MLX5_VPORT_ACCESS_METHOD_NIC: | |
768 | return mlx5_query_hca_vport_pkey(mdev, 0, port, 0, index, | |
769 | pkey); | |
770 | default: | |
771 | return -EINVAL; | |
772 | } | |
773 | } | |
e126ba97 EC |
774 | |
775 | static int mlx5_ib_modify_device(struct ib_device *ibdev, int mask, | |
776 | struct ib_device_modify *props) | |
777 | { | |
778 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
779 | struct mlx5_reg_node_desc in; | |
780 | struct mlx5_reg_node_desc out; | |
781 | int err; | |
782 | ||
783 | if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) | |
784 | return -EOPNOTSUPP; | |
785 | ||
786 | if (!(mask & IB_DEVICE_MODIFY_NODE_DESC)) | |
787 | return 0; | |
788 | ||
789 | /* | |
790 | * If possible, pass node desc to FW, so it can generate | |
791 | * a 144 trap. If cmd fails, just ignore. | |
792 | */ | |
793 | memcpy(&in, props->node_desc, 64); | |
9603b61d | 794 | err = mlx5_core_access_reg(dev->mdev, &in, sizeof(in), &out, |
e126ba97 EC |
795 | sizeof(out), MLX5_REG_NODE_DESC, 0, 1); |
796 | if (err) | |
797 | return err; | |
798 | ||
799 | memcpy(ibdev->node_desc, props->node_desc, 64); | |
800 | ||
801 | return err; | |
802 | } | |
803 | ||
804 | static int mlx5_ib_modify_port(struct ib_device *ibdev, u8 port, int mask, | |
805 | struct ib_port_modify *props) | |
806 | { | |
807 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
808 | struct ib_port_attr attr; | |
809 | u32 tmp; | |
810 | int err; | |
811 | ||
812 | mutex_lock(&dev->cap_mask_mutex); | |
813 | ||
814 | err = mlx5_ib_query_port(ibdev, port, &attr); | |
815 | if (err) | |
816 | goto out; | |
817 | ||
818 | tmp = (attr.port_cap_flags | props->set_port_cap_mask) & | |
819 | ~props->clr_port_cap_mask; | |
820 | ||
9603b61d | 821 | err = mlx5_set_port_caps(dev->mdev, port, tmp); |
e126ba97 EC |
822 | |
823 | out: | |
824 | mutex_unlock(&dev->cap_mask_mutex); | |
825 | return err; | |
826 | } | |
827 | ||
828 | static struct ib_ucontext *mlx5_ib_alloc_ucontext(struct ib_device *ibdev, | |
829 | struct ib_udata *udata) | |
830 | { | |
831 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
b368d7cb MB |
832 | struct mlx5_ib_alloc_ucontext_req_v2 req = {}; |
833 | struct mlx5_ib_alloc_ucontext_resp resp = {}; | |
e126ba97 EC |
834 | struct mlx5_ib_ucontext *context; |
835 | struct mlx5_uuar_info *uuari; | |
836 | struct mlx5_uar *uars; | |
c1be5232 | 837 | int gross_uuars; |
e126ba97 | 838 | int num_uars; |
78c0f98c | 839 | int ver; |
e126ba97 EC |
840 | int uuarn; |
841 | int err; | |
842 | int i; | |
f241e749 | 843 | size_t reqlen; |
e126ba97 EC |
844 | |
845 | if (!dev->ib_active) | |
846 | return ERR_PTR(-EAGAIN); | |
847 | ||
dfbee859 HA |
848 | if (udata->inlen < sizeof(struct ib_uverbs_cmd_hdr)) |
849 | return ERR_PTR(-EINVAL); | |
850 | ||
78c0f98c EC |
851 | reqlen = udata->inlen - sizeof(struct ib_uverbs_cmd_hdr); |
852 | if (reqlen == sizeof(struct mlx5_ib_alloc_ucontext_req)) | |
853 | ver = 0; | |
b368d7cb | 854 | else if (reqlen >= sizeof(struct mlx5_ib_alloc_ucontext_req_v2)) |
78c0f98c EC |
855 | ver = 2; |
856 | else | |
857 | return ERR_PTR(-EINVAL); | |
858 | ||
b368d7cb | 859 | err = ib_copy_from_udata(&req, udata, min(reqlen, sizeof(req))); |
e126ba97 EC |
860 | if (err) |
861 | return ERR_PTR(err); | |
862 | ||
b368d7cb | 863 | if (req.flags) |
78c0f98c EC |
864 | return ERR_PTR(-EINVAL); |
865 | ||
e126ba97 EC |
866 | if (req.total_num_uuars > MLX5_MAX_UUARS) |
867 | return ERR_PTR(-ENOMEM); | |
868 | ||
869 | if (req.total_num_uuars == 0) | |
870 | return ERR_PTR(-EINVAL); | |
871 | ||
b368d7cb MB |
872 | if (req.comp_mask) |
873 | return ERR_PTR(-EOPNOTSUPP); | |
874 | ||
875 | if (reqlen > sizeof(req) && | |
876 | !ib_is_udata_cleared(udata, sizeof(req), | |
dfbee859 | 877 | reqlen - sizeof(req))) |
b368d7cb MB |
878 | return ERR_PTR(-EOPNOTSUPP); |
879 | ||
c1be5232 EC |
880 | req.total_num_uuars = ALIGN(req.total_num_uuars, |
881 | MLX5_NON_FP_BF_REGS_PER_PAGE); | |
e126ba97 EC |
882 | if (req.num_low_latency_uuars > req.total_num_uuars - 1) |
883 | return ERR_PTR(-EINVAL); | |
884 | ||
c1be5232 EC |
885 | num_uars = req.total_num_uuars / MLX5_NON_FP_BF_REGS_PER_PAGE; |
886 | gross_uuars = num_uars * MLX5_BF_REGS_PER_PAGE; | |
938fe83c SM |
887 | resp.qp_tab_size = 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp); |
888 | resp.bf_reg_size = 1 << MLX5_CAP_GEN(dev->mdev, log_bf_reg_size); | |
889 | resp.cache_line_size = L1_CACHE_BYTES; | |
890 | resp.max_sq_desc_sz = MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq); | |
891 | resp.max_rq_desc_sz = MLX5_CAP_GEN(dev->mdev, max_wqe_sz_rq); | |
892 | resp.max_send_wqebb = 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz); | |
893 | resp.max_recv_wr = 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz); | |
894 | resp.max_srq_recv_wr = 1 << MLX5_CAP_GEN(dev->mdev, log_max_srq_sz); | |
b368d7cb MB |
895 | resp.response_length = min(offsetof(typeof(resp), response_length) + |
896 | sizeof(resp.response_length), udata->outlen); | |
e126ba97 EC |
897 | |
898 | context = kzalloc(sizeof(*context), GFP_KERNEL); | |
899 | if (!context) | |
900 | return ERR_PTR(-ENOMEM); | |
901 | ||
902 | uuari = &context->uuari; | |
903 | mutex_init(&uuari->lock); | |
904 | uars = kcalloc(num_uars, sizeof(*uars), GFP_KERNEL); | |
905 | if (!uars) { | |
906 | err = -ENOMEM; | |
907 | goto out_ctx; | |
908 | } | |
909 | ||
c1be5232 | 910 | uuari->bitmap = kcalloc(BITS_TO_LONGS(gross_uuars), |
e126ba97 EC |
911 | sizeof(*uuari->bitmap), |
912 | GFP_KERNEL); | |
913 | if (!uuari->bitmap) { | |
914 | err = -ENOMEM; | |
915 | goto out_uar_ctx; | |
916 | } | |
917 | /* | |
918 | * clear all fast path uuars | |
919 | */ | |
c1be5232 | 920 | for (i = 0; i < gross_uuars; i++) { |
e126ba97 EC |
921 | uuarn = i & 3; |
922 | if (uuarn == 2 || uuarn == 3) | |
923 | set_bit(i, uuari->bitmap); | |
924 | } | |
925 | ||
c1be5232 | 926 | uuari->count = kcalloc(gross_uuars, sizeof(*uuari->count), GFP_KERNEL); |
e126ba97 EC |
927 | if (!uuari->count) { |
928 | err = -ENOMEM; | |
929 | goto out_bitmap; | |
930 | } | |
931 | ||
932 | for (i = 0; i < num_uars; i++) { | |
9603b61d | 933 | err = mlx5_cmd_alloc_uar(dev->mdev, &uars[i].index); |
e126ba97 EC |
934 | if (err) |
935 | goto out_count; | |
936 | } | |
937 | ||
b4cfe447 HE |
938 | #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING |
939 | context->ibucontext.invalidate_range = &mlx5_ib_invalidate_range; | |
940 | #endif | |
941 | ||
e126ba97 EC |
942 | INIT_LIST_HEAD(&context->db_page_list); |
943 | mutex_init(&context->db_page_mutex); | |
944 | ||
945 | resp.tot_uuars = req.total_num_uuars; | |
938fe83c | 946 | resp.num_ports = MLX5_CAP_GEN(dev->mdev, num_ports); |
b368d7cb MB |
947 | |
948 | if (field_avail(typeof(resp), reserved2, udata->outlen)) | |
949 | resp.response_length += sizeof(resp.reserved2); | |
950 | ||
951 | if (field_avail(typeof(resp), hca_core_clock_offset, udata->outlen)) { | |
952 | resp.comp_mask |= | |
953 | MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_CORE_CLOCK_OFFSET; | |
954 | resp.hca_core_clock_offset = | |
955 | offsetof(struct mlx5_init_seg, internal_timer_h) % | |
956 | PAGE_SIZE; | |
957 | resp.response_length += sizeof(resp.hca_core_clock_offset); | |
958 | } | |
959 | ||
960 | err = ib_copy_to_udata(udata, &resp, resp.response_length); | |
e126ba97 EC |
961 | if (err) |
962 | goto out_uars; | |
963 | ||
78c0f98c | 964 | uuari->ver = ver; |
e126ba97 EC |
965 | uuari->num_low_latency_uuars = req.num_low_latency_uuars; |
966 | uuari->uars = uars; | |
967 | uuari->num_uars = num_uars; | |
968 | return &context->ibucontext; | |
969 | ||
970 | out_uars: | |
971 | for (i--; i >= 0; i--) | |
9603b61d | 972 | mlx5_cmd_free_uar(dev->mdev, uars[i].index); |
e126ba97 EC |
973 | out_count: |
974 | kfree(uuari->count); | |
975 | ||
976 | out_bitmap: | |
977 | kfree(uuari->bitmap); | |
978 | ||
979 | out_uar_ctx: | |
980 | kfree(uars); | |
981 | ||
982 | out_ctx: | |
983 | kfree(context); | |
984 | return ERR_PTR(err); | |
985 | } | |
986 | ||
987 | static int mlx5_ib_dealloc_ucontext(struct ib_ucontext *ibcontext) | |
988 | { | |
989 | struct mlx5_ib_ucontext *context = to_mucontext(ibcontext); | |
990 | struct mlx5_ib_dev *dev = to_mdev(ibcontext->device); | |
991 | struct mlx5_uuar_info *uuari = &context->uuari; | |
992 | int i; | |
993 | ||
994 | for (i = 0; i < uuari->num_uars; i++) { | |
9603b61d | 995 | if (mlx5_cmd_free_uar(dev->mdev, uuari->uars[i].index)) |
e126ba97 EC |
996 | mlx5_ib_warn(dev, "failed to free UAR 0x%x\n", uuari->uars[i].index); |
997 | } | |
998 | ||
999 | kfree(uuari->count); | |
1000 | kfree(uuari->bitmap); | |
1001 | kfree(uuari->uars); | |
1002 | kfree(context); | |
1003 | ||
1004 | return 0; | |
1005 | } | |
1006 | ||
1007 | static phys_addr_t uar_index2pfn(struct mlx5_ib_dev *dev, int index) | |
1008 | { | |
9603b61d | 1009 | return (pci_resource_start(dev->mdev->pdev, 0) >> PAGE_SHIFT) + index; |
e126ba97 EC |
1010 | } |
1011 | ||
1012 | static int get_command(unsigned long offset) | |
1013 | { | |
1014 | return (offset >> MLX5_IB_MMAP_CMD_SHIFT) & MLX5_IB_MMAP_CMD_MASK; | |
1015 | } | |
1016 | ||
1017 | static int get_arg(unsigned long offset) | |
1018 | { | |
1019 | return offset & ((1 << MLX5_IB_MMAP_CMD_SHIFT) - 1); | |
1020 | } | |
1021 | ||
1022 | static int get_index(unsigned long offset) | |
1023 | { | |
1024 | return get_arg(offset); | |
1025 | } | |
1026 | ||
1027 | static int mlx5_ib_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vma) | |
1028 | { | |
1029 | struct mlx5_ib_ucontext *context = to_mucontext(ibcontext); | |
1030 | struct mlx5_ib_dev *dev = to_mdev(ibcontext->device); | |
1031 | struct mlx5_uuar_info *uuari = &context->uuari; | |
1032 | unsigned long command; | |
1033 | unsigned long idx; | |
1034 | phys_addr_t pfn; | |
1035 | ||
1036 | command = get_command(vma->vm_pgoff); | |
1037 | switch (command) { | |
1038 | case MLX5_IB_MMAP_REGULAR_PAGE: | |
1039 | if (vma->vm_end - vma->vm_start != PAGE_SIZE) | |
1040 | return -EINVAL; | |
1041 | ||
1042 | idx = get_index(vma->vm_pgoff); | |
1c3ce90d EC |
1043 | if (idx >= uuari->num_uars) |
1044 | return -EINVAL; | |
1045 | ||
e126ba97 EC |
1046 | pfn = uar_index2pfn(dev, uuari->uars[idx].index); |
1047 | mlx5_ib_dbg(dev, "uar idx 0x%lx, pfn 0x%llx\n", idx, | |
1048 | (unsigned long long)pfn); | |
1049 | ||
e126ba97 EC |
1050 | vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); |
1051 | if (io_remap_pfn_range(vma, vma->vm_start, pfn, | |
1052 | PAGE_SIZE, vma->vm_page_prot)) | |
1053 | return -EAGAIN; | |
1054 | ||
1055 | mlx5_ib_dbg(dev, "mapped WC at 0x%lx, PA 0x%llx\n", | |
1056 | vma->vm_start, | |
1057 | (unsigned long long)pfn << PAGE_SHIFT); | |
1058 | break; | |
1059 | ||
1060 | case MLX5_IB_MMAP_GET_CONTIGUOUS_PAGES: | |
1061 | return -ENOSYS; | |
1062 | ||
d69e3bcf | 1063 | case MLX5_IB_MMAP_CORE_CLOCK: |
d69e3bcf MB |
1064 | if (vma->vm_end - vma->vm_start != PAGE_SIZE) |
1065 | return -EINVAL; | |
1066 | ||
1067 | if (vma->vm_flags & (VM_WRITE | VM_EXEC)) | |
1068 | return -EPERM; | |
1069 | ||
1070 | /* Don't expose to user-space information it shouldn't have */ | |
1071 | if (PAGE_SIZE > 4096) | |
1072 | return -EOPNOTSUPP; | |
1073 | ||
1074 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | |
1075 | pfn = (dev->mdev->iseg_base + | |
1076 | offsetof(struct mlx5_init_seg, internal_timer_h)) >> | |
1077 | PAGE_SHIFT; | |
1078 | if (io_remap_pfn_range(vma, vma->vm_start, pfn, | |
1079 | PAGE_SIZE, vma->vm_page_prot)) | |
1080 | return -EAGAIN; | |
1081 | ||
1082 | mlx5_ib_dbg(dev, "mapped internal timer at 0x%lx, PA 0x%llx\n", | |
1083 | vma->vm_start, | |
1084 | (unsigned long long)pfn << PAGE_SHIFT); | |
1085 | break; | |
d69e3bcf | 1086 | |
e126ba97 EC |
1087 | default: |
1088 | return -EINVAL; | |
1089 | } | |
1090 | ||
1091 | return 0; | |
1092 | } | |
1093 | ||
e126ba97 EC |
1094 | static struct ib_pd *mlx5_ib_alloc_pd(struct ib_device *ibdev, |
1095 | struct ib_ucontext *context, | |
1096 | struct ib_udata *udata) | |
1097 | { | |
1098 | struct mlx5_ib_alloc_pd_resp resp; | |
1099 | struct mlx5_ib_pd *pd; | |
1100 | int err; | |
1101 | ||
1102 | pd = kmalloc(sizeof(*pd), GFP_KERNEL); | |
1103 | if (!pd) | |
1104 | return ERR_PTR(-ENOMEM); | |
1105 | ||
9603b61d | 1106 | err = mlx5_core_alloc_pd(to_mdev(ibdev)->mdev, &pd->pdn); |
e126ba97 EC |
1107 | if (err) { |
1108 | kfree(pd); | |
1109 | return ERR_PTR(err); | |
1110 | } | |
1111 | ||
1112 | if (context) { | |
1113 | resp.pdn = pd->pdn; | |
1114 | if (ib_copy_to_udata(udata, &resp, sizeof(resp))) { | |
9603b61d | 1115 | mlx5_core_dealloc_pd(to_mdev(ibdev)->mdev, pd->pdn); |
e126ba97 EC |
1116 | kfree(pd); |
1117 | return ERR_PTR(-EFAULT); | |
1118 | } | |
e126ba97 EC |
1119 | } |
1120 | ||
1121 | return &pd->ibpd; | |
1122 | } | |
1123 | ||
1124 | static int mlx5_ib_dealloc_pd(struct ib_pd *pd) | |
1125 | { | |
1126 | struct mlx5_ib_dev *mdev = to_mdev(pd->device); | |
1127 | struct mlx5_ib_pd *mpd = to_mpd(pd); | |
1128 | ||
9603b61d | 1129 | mlx5_core_dealloc_pd(mdev->mdev, mpd->pdn); |
e126ba97 EC |
1130 | kfree(mpd); |
1131 | ||
1132 | return 0; | |
1133 | } | |
1134 | ||
1135 | static int mlx5_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
1136 | { | |
1137 | struct mlx5_ib_dev *dev = to_mdev(ibqp->device); | |
1138 | int err; | |
1139 | ||
9603b61d | 1140 | err = mlx5_core_attach_mcg(dev->mdev, gid, ibqp->qp_num); |
e126ba97 EC |
1141 | if (err) |
1142 | mlx5_ib_warn(dev, "failed attaching QPN 0x%x, MGID %pI6\n", | |
1143 | ibqp->qp_num, gid->raw); | |
1144 | ||
1145 | return err; | |
1146 | } | |
1147 | ||
1148 | static int mlx5_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
1149 | { | |
1150 | struct mlx5_ib_dev *dev = to_mdev(ibqp->device); | |
1151 | int err; | |
1152 | ||
9603b61d | 1153 | err = mlx5_core_detach_mcg(dev->mdev, gid, ibqp->qp_num); |
e126ba97 EC |
1154 | if (err) |
1155 | mlx5_ib_warn(dev, "failed detaching QPN 0x%x, MGID %pI6\n", | |
1156 | ibqp->qp_num, gid->raw); | |
1157 | ||
1158 | return err; | |
1159 | } | |
1160 | ||
1161 | static int init_node_data(struct mlx5_ib_dev *dev) | |
1162 | { | |
1b5daf11 | 1163 | int err; |
e126ba97 | 1164 | |
1b5daf11 | 1165 | err = mlx5_query_node_desc(dev, dev->ib_dev.node_desc); |
e126ba97 | 1166 | if (err) |
1b5daf11 | 1167 | return err; |
e126ba97 | 1168 | |
1b5daf11 | 1169 | dev->mdev->rev_id = dev->mdev->pdev->revision; |
e126ba97 | 1170 | |
1b5daf11 | 1171 | return mlx5_query_node_guid(dev, &dev->ib_dev.node_guid); |
e126ba97 EC |
1172 | } |
1173 | ||
1174 | static ssize_t show_fw_pages(struct device *device, struct device_attribute *attr, | |
1175 | char *buf) | |
1176 | { | |
1177 | struct mlx5_ib_dev *dev = | |
1178 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
1179 | ||
9603b61d | 1180 | return sprintf(buf, "%d\n", dev->mdev->priv.fw_pages); |
e126ba97 EC |
1181 | } |
1182 | ||
1183 | static ssize_t show_reg_pages(struct device *device, | |
1184 | struct device_attribute *attr, char *buf) | |
1185 | { | |
1186 | struct mlx5_ib_dev *dev = | |
1187 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
1188 | ||
6aec21f6 | 1189 | return sprintf(buf, "%d\n", atomic_read(&dev->mdev->priv.reg_pages)); |
e126ba97 EC |
1190 | } |
1191 | ||
1192 | static ssize_t show_hca(struct device *device, struct device_attribute *attr, | |
1193 | char *buf) | |
1194 | { | |
1195 | struct mlx5_ib_dev *dev = | |
1196 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
9603b61d | 1197 | return sprintf(buf, "MT%d\n", dev->mdev->pdev->device); |
e126ba97 EC |
1198 | } |
1199 | ||
1200 | static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr, | |
1201 | char *buf) | |
1202 | { | |
1203 | struct mlx5_ib_dev *dev = | |
1204 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
9603b61d JM |
1205 | return sprintf(buf, "%d.%d.%d\n", fw_rev_maj(dev->mdev), |
1206 | fw_rev_min(dev->mdev), fw_rev_sub(dev->mdev)); | |
e126ba97 EC |
1207 | } |
1208 | ||
1209 | static ssize_t show_rev(struct device *device, struct device_attribute *attr, | |
1210 | char *buf) | |
1211 | { | |
1212 | struct mlx5_ib_dev *dev = | |
1213 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
9603b61d | 1214 | return sprintf(buf, "%x\n", dev->mdev->rev_id); |
e126ba97 EC |
1215 | } |
1216 | ||
1217 | static ssize_t show_board(struct device *device, struct device_attribute *attr, | |
1218 | char *buf) | |
1219 | { | |
1220 | struct mlx5_ib_dev *dev = | |
1221 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
1222 | return sprintf(buf, "%.*s\n", MLX5_BOARD_ID_LEN, | |
9603b61d | 1223 | dev->mdev->board_id); |
e126ba97 EC |
1224 | } |
1225 | ||
1226 | static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); | |
1227 | static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); | |
1228 | static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); | |
1229 | static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); | |
1230 | static DEVICE_ATTR(fw_pages, S_IRUGO, show_fw_pages, NULL); | |
1231 | static DEVICE_ATTR(reg_pages, S_IRUGO, show_reg_pages, NULL); | |
1232 | ||
1233 | static struct device_attribute *mlx5_class_attributes[] = { | |
1234 | &dev_attr_hw_rev, | |
1235 | &dev_attr_fw_ver, | |
1236 | &dev_attr_hca_type, | |
1237 | &dev_attr_board_id, | |
1238 | &dev_attr_fw_pages, | |
1239 | &dev_attr_reg_pages, | |
1240 | }; | |
1241 | ||
9603b61d | 1242 | static void mlx5_ib_event(struct mlx5_core_dev *dev, void *context, |
4d2f9bbb | 1243 | enum mlx5_dev_event event, unsigned long param) |
e126ba97 | 1244 | { |
9603b61d | 1245 | struct mlx5_ib_dev *ibdev = (struct mlx5_ib_dev *)context; |
e126ba97 | 1246 | struct ib_event ibev; |
9603b61d | 1247 | |
e126ba97 EC |
1248 | u8 port = 0; |
1249 | ||
1250 | switch (event) { | |
1251 | case MLX5_DEV_EVENT_SYS_ERROR: | |
1252 | ibdev->ib_active = false; | |
1253 | ibev.event = IB_EVENT_DEVICE_FATAL; | |
1254 | break; | |
1255 | ||
1256 | case MLX5_DEV_EVENT_PORT_UP: | |
1257 | ibev.event = IB_EVENT_PORT_ACTIVE; | |
4d2f9bbb | 1258 | port = (u8)param; |
e126ba97 EC |
1259 | break; |
1260 | ||
1261 | case MLX5_DEV_EVENT_PORT_DOWN: | |
1262 | ibev.event = IB_EVENT_PORT_ERR; | |
4d2f9bbb | 1263 | port = (u8)param; |
e126ba97 EC |
1264 | break; |
1265 | ||
1266 | case MLX5_DEV_EVENT_PORT_INITIALIZED: | |
1267 | /* not used by ULPs */ | |
1268 | return; | |
1269 | ||
1270 | case MLX5_DEV_EVENT_LID_CHANGE: | |
1271 | ibev.event = IB_EVENT_LID_CHANGE; | |
4d2f9bbb | 1272 | port = (u8)param; |
e126ba97 EC |
1273 | break; |
1274 | ||
1275 | case MLX5_DEV_EVENT_PKEY_CHANGE: | |
1276 | ibev.event = IB_EVENT_PKEY_CHANGE; | |
4d2f9bbb | 1277 | port = (u8)param; |
e126ba97 EC |
1278 | break; |
1279 | ||
1280 | case MLX5_DEV_EVENT_GUID_CHANGE: | |
1281 | ibev.event = IB_EVENT_GID_CHANGE; | |
4d2f9bbb | 1282 | port = (u8)param; |
e126ba97 EC |
1283 | break; |
1284 | ||
1285 | case MLX5_DEV_EVENT_CLIENT_REREG: | |
1286 | ibev.event = IB_EVENT_CLIENT_REREGISTER; | |
4d2f9bbb | 1287 | port = (u8)param; |
e126ba97 EC |
1288 | break; |
1289 | } | |
1290 | ||
1291 | ibev.device = &ibdev->ib_dev; | |
1292 | ibev.element.port_num = port; | |
1293 | ||
a0c84c32 EC |
1294 | if (port < 1 || port > ibdev->num_ports) { |
1295 | mlx5_ib_warn(ibdev, "warning: event on port %d\n", port); | |
1296 | return; | |
1297 | } | |
1298 | ||
e126ba97 EC |
1299 | if (ibdev->ib_active) |
1300 | ib_dispatch_event(&ibev); | |
1301 | } | |
1302 | ||
1303 | static void get_ext_port_caps(struct mlx5_ib_dev *dev) | |
1304 | { | |
1305 | int port; | |
1306 | ||
938fe83c | 1307 | for (port = 1; port <= MLX5_CAP_GEN(dev->mdev, num_ports); port++) |
e126ba97 EC |
1308 | mlx5_query_ext_port_caps(dev, port); |
1309 | } | |
1310 | ||
1311 | static int get_port_caps(struct mlx5_ib_dev *dev) | |
1312 | { | |
1313 | struct ib_device_attr *dprops = NULL; | |
1314 | struct ib_port_attr *pprops = NULL; | |
f614fc15 | 1315 | int err = -ENOMEM; |
e126ba97 | 1316 | int port; |
2528e33e | 1317 | struct ib_udata uhw = {.inlen = 0, .outlen = 0}; |
e126ba97 EC |
1318 | |
1319 | pprops = kmalloc(sizeof(*pprops), GFP_KERNEL); | |
1320 | if (!pprops) | |
1321 | goto out; | |
1322 | ||
1323 | dprops = kmalloc(sizeof(*dprops), GFP_KERNEL); | |
1324 | if (!dprops) | |
1325 | goto out; | |
1326 | ||
2528e33e | 1327 | err = mlx5_ib_query_device(&dev->ib_dev, dprops, &uhw); |
e126ba97 EC |
1328 | if (err) { |
1329 | mlx5_ib_warn(dev, "query_device failed %d\n", err); | |
1330 | goto out; | |
1331 | } | |
1332 | ||
938fe83c | 1333 | for (port = 1; port <= MLX5_CAP_GEN(dev->mdev, num_ports); port++) { |
e126ba97 EC |
1334 | err = mlx5_ib_query_port(&dev->ib_dev, port, pprops); |
1335 | if (err) { | |
938fe83c SM |
1336 | mlx5_ib_warn(dev, "query_port %d failed %d\n", |
1337 | port, err); | |
e126ba97 EC |
1338 | break; |
1339 | } | |
938fe83c SM |
1340 | dev->mdev->port_caps[port - 1].pkey_table_len = |
1341 | dprops->max_pkeys; | |
1342 | dev->mdev->port_caps[port - 1].gid_table_len = | |
1343 | pprops->gid_tbl_len; | |
e126ba97 EC |
1344 | mlx5_ib_dbg(dev, "pkey_table_len %d, gid_table_len %d\n", |
1345 | dprops->max_pkeys, pprops->gid_tbl_len); | |
1346 | } | |
1347 | ||
1348 | out: | |
1349 | kfree(pprops); | |
1350 | kfree(dprops); | |
1351 | ||
1352 | return err; | |
1353 | } | |
1354 | ||
1355 | static void destroy_umrc_res(struct mlx5_ib_dev *dev) | |
1356 | { | |
1357 | int err; | |
1358 | ||
1359 | err = mlx5_mr_cache_cleanup(dev); | |
1360 | if (err) | |
1361 | mlx5_ib_warn(dev, "mr cache cleanup failed\n"); | |
1362 | ||
1363 | mlx5_ib_destroy_qp(dev->umrc.qp); | |
1364 | ib_destroy_cq(dev->umrc.cq); | |
e126ba97 EC |
1365 | ib_dealloc_pd(dev->umrc.pd); |
1366 | } | |
1367 | ||
1368 | enum { | |
1369 | MAX_UMR_WR = 128, | |
1370 | }; | |
1371 | ||
1372 | static int create_umr_res(struct mlx5_ib_dev *dev) | |
1373 | { | |
1374 | struct ib_qp_init_attr *init_attr = NULL; | |
1375 | struct ib_qp_attr *attr = NULL; | |
1376 | struct ib_pd *pd; | |
1377 | struct ib_cq *cq; | |
1378 | struct ib_qp *qp; | |
8e37210b | 1379 | struct ib_cq_init_attr cq_attr = {}; |
e126ba97 EC |
1380 | int ret; |
1381 | ||
1382 | attr = kzalloc(sizeof(*attr), GFP_KERNEL); | |
1383 | init_attr = kzalloc(sizeof(*init_attr), GFP_KERNEL); | |
1384 | if (!attr || !init_attr) { | |
1385 | ret = -ENOMEM; | |
1386 | goto error_0; | |
1387 | } | |
1388 | ||
1389 | pd = ib_alloc_pd(&dev->ib_dev); | |
1390 | if (IS_ERR(pd)) { | |
1391 | mlx5_ib_dbg(dev, "Couldn't create PD for sync UMR QP\n"); | |
1392 | ret = PTR_ERR(pd); | |
1393 | goto error_0; | |
1394 | } | |
1395 | ||
8e37210b MB |
1396 | cq_attr.cqe = 128; |
1397 | cq = ib_create_cq(&dev->ib_dev, mlx5_umr_cq_handler, NULL, NULL, | |
1398 | &cq_attr); | |
e126ba97 EC |
1399 | if (IS_ERR(cq)) { |
1400 | mlx5_ib_dbg(dev, "Couldn't create CQ for sync UMR QP\n"); | |
1401 | ret = PTR_ERR(cq); | |
1402 | goto error_2; | |
1403 | } | |
1404 | ib_req_notify_cq(cq, IB_CQ_NEXT_COMP); | |
1405 | ||
1406 | init_attr->send_cq = cq; | |
1407 | init_attr->recv_cq = cq; | |
1408 | init_attr->sq_sig_type = IB_SIGNAL_ALL_WR; | |
1409 | init_attr->cap.max_send_wr = MAX_UMR_WR; | |
1410 | init_attr->cap.max_send_sge = 1; | |
1411 | init_attr->qp_type = MLX5_IB_QPT_REG_UMR; | |
1412 | init_attr->port_num = 1; | |
1413 | qp = mlx5_ib_create_qp(pd, init_attr, NULL); | |
1414 | if (IS_ERR(qp)) { | |
1415 | mlx5_ib_dbg(dev, "Couldn't create sync UMR QP\n"); | |
1416 | ret = PTR_ERR(qp); | |
1417 | goto error_3; | |
1418 | } | |
1419 | qp->device = &dev->ib_dev; | |
1420 | qp->real_qp = qp; | |
1421 | qp->uobject = NULL; | |
1422 | qp->qp_type = MLX5_IB_QPT_REG_UMR; | |
1423 | ||
1424 | attr->qp_state = IB_QPS_INIT; | |
1425 | attr->port_num = 1; | |
1426 | ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE | IB_QP_PKEY_INDEX | | |
1427 | IB_QP_PORT, NULL); | |
1428 | if (ret) { | |
1429 | mlx5_ib_dbg(dev, "Couldn't modify UMR QP\n"); | |
1430 | goto error_4; | |
1431 | } | |
1432 | ||
1433 | memset(attr, 0, sizeof(*attr)); | |
1434 | attr->qp_state = IB_QPS_RTR; | |
1435 | attr->path_mtu = IB_MTU_256; | |
1436 | ||
1437 | ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE, NULL); | |
1438 | if (ret) { | |
1439 | mlx5_ib_dbg(dev, "Couldn't modify umr QP to rtr\n"); | |
1440 | goto error_4; | |
1441 | } | |
1442 | ||
1443 | memset(attr, 0, sizeof(*attr)); | |
1444 | attr->qp_state = IB_QPS_RTS; | |
1445 | ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE, NULL); | |
1446 | if (ret) { | |
1447 | mlx5_ib_dbg(dev, "Couldn't modify umr QP to rts\n"); | |
1448 | goto error_4; | |
1449 | } | |
1450 | ||
1451 | dev->umrc.qp = qp; | |
1452 | dev->umrc.cq = cq; | |
e126ba97 EC |
1453 | dev->umrc.pd = pd; |
1454 | ||
1455 | sema_init(&dev->umrc.sem, MAX_UMR_WR); | |
1456 | ret = mlx5_mr_cache_init(dev); | |
1457 | if (ret) { | |
1458 | mlx5_ib_warn(dev, "mr cache init failed %d\n", ret); | |
1459 | goto error_4; | |
1460 | } | |
1461 | ||
1462 | kfree(attr); | |
1463 | kfree(init_attr); | |
1464 | ||
1465 | return 0; | |
1466 | ||
1467 | error_4: | |
1468 | mlx5_ib_destroy_qp(qp); | |
1469 | ||
1470 | error_3: | |
1471 | ib_destroy_cq(cq); | |
1472 | ||
1473 | error_2: | |
e126ba97 EC |
1474 | ib_dealloc_pd(pd); |
1475 | ||
1476 | error_0: | |
1477 | kfree(attr); | |
1478 | kfree(init_attr); | |
1479 | return ret; | |
1480 | } | |
1481 | ||
1482 | static int create_dev_resources(struct mlx5_ib_resources *devr) | |
1483 | { | |
1484 | struct ib_srq_init_attr attr; | |
1485 | struct mlx5_ib_dev *dev; | |
bcf4c1ea | 1486 | struct ib_cq_init_attr cq_attr = {.cqe = 1}; |
e126ba97 EC |
1487 | int ret = 0; |
1488 | ||
1489 | dev = container_of(devr, struct mlx5_ib_dev, devr); | |
1490 | ||
1491 | devr->p0 = mlx5_ib_alloc_pd(&dev->ib_dev, NULL, NULL); | |
1492 | if (IS_ERR(devr->p0)) { | |
1493 | ret = PTR_ERR(devr->p0); | |
1494 | goto error0; | |
1495 | } | |
1496 | devr->p0->device = &dev->ib_dev; | |
1497 | devr->p0->uobject = NULL; | |
1498 | atomic_set(&devr->p0->usecnt, 0); | |
1499 | ||
bcf4c1ea | 1500 | devr->c0 = mlx5_ib_create_cq(&dev->ib_dev, &cq_attr, NULL, NULL); |
e126ba97 EC |
1501 | if (IS_ERR(devr->c0)) { |
1502 | ret = PTR_ERR(devr->c0); | |
1503 | goto error1; | |
1504 | } | |
1505 | devr->c0->device = &dev->ib_dev; | |
1506 | devr->c0->uobject = NULL; | |
1507 | devr->c0->comp_handler = NULL; | |
1508 | devr->c0->event_handler = NULL; | |
1509 | devr->c0->cq_context = NULL; | |
1510 | atomic_set(&devr->c0->usecnt, 0); | |
1511 | ||
1512 | devr->x0 = mlx5_ib_alloc_xrcd(&dev->ib_dev, NULL, NULL); | |
1513 | if (IS_ERR(devr->x0)) { | |
1514 | ret = PTR_ERR(devr->x0); | |
1515 | goto error2; | |
1516 | } | |
1517 | devr->x0->device = &dev->ib_dev; | |
1518 | devr->x0->inode = NULL; | |
1519 | atomic_set(&devr->x0->usecnt, 0); | |
1520 | mutex_init(&devr->x0->tgt_qp_mutex); | |
1521 | INIT_LIST_HEAD(&devr->x0->tgt_qp_list); | |
1522 | ||
1523 | devr->x1 = mlx5_ib_alloc_xrcd(&dev->ib_dev, NULL, NULL); | |
1524 | if (IS_ERR(devr->x1)) { | |
1525 | ret = PTR_ERR(devr->x1); | |
1526 | goto error3; | |
1527 | } | |
1528 | devr->x1->device = &dev->ib_dev; | |
1529 | devr->x1->inode = NULL; | |
1530 | atomic_set(&devr->x1->usecnt, 0); | |
1531 | mutex_init(&devr->x1->tgt_qp_mutex); | |
1532 | INIT_LIST_HEAD(&devr->x1->tgt_qp_list); | |
1533 | ||
1534 | memset(&attr, 0, sizeof(attr)); | |
1535 | attr.attr.max_sge = 1; | |
1536 | attr.attr.max_wr = 1; | |
1537 | attr.srq_type = IB_SRQT_XRC; | |
1538 | attr.ext.xrc.cq = devr->c0; | |
1539 | attr.ext.xrc.xrcd = devr->x0; | |
1540 | ||
1541 | devr->s0 = mlx5_ib_create_srq(devr->p0, &attr, NULL); | |
1542 | if (IS_ERR(devr->s0)) { | |
1543 | ret = PTR_ERR(devr->s0); | |
1544 | goto error4; | |
1545 | } | |
1546 | devr->s0->device = &dev->ib_dev; | |
1547 | devr->s0->pd = devr->p0; | |
1548 | devr->s0->uobject = NULL; | |
1549 | devr->s0->event_handler = NULL; | |
1550 | devr->s0->srq_context = NULL; | |
1551 | devr->s0->srq_type = IB_SRQT_XRC; | |
1552 | devr->s0->ext.xrc.xrcd = devr->x0; | |
1553 | devr->s0->ext.xrc.cq = devr->c0; | |
1554 | atomic_inc(&devr->s0->ext.xrc.xrcd->usecnt); | |
1555 | atomic_inc(&devr->s0->ext.xrc.cq->usecnt); | |
1556 | atomic_inc(&devr->p0->usecnt); | |
1557 | atomic_set(&devr->s0->usecnt, 0); | |
1558 | ||
4aa17b28 HA |
1559 | memset(&attr, 0, sizeof(attr)); |
1560 | attr.attr.max_sge = 1; | |
1561 | attr.attr.max_wr = 1; | |
1562 | attr.srq_type = IB_SRQT_BASIC; | |
1563 | devr->s1 = mlx5_ib_create_srq(devr->p0, &attr, NULL); | |
1564 | if (IS_ERR(devr->s1)) { | |
1565 | ret = PTR_ERR(devr->s1); | |
1566 | goto error5; | |
1567 | } | |
1568 | devr->s1->device = &dev->ib_dev; | |
1569 | devr->s1->pd = devr->p0; | |
1570 | devr->s1->uobject = NULL; | |
1571 | devr->s1->event_handler = NULL; | |
1572 | devr->s1->srq_context = NULL; | |
1573 | devr->s1->srq_type = IB_SRQT_BASIC; | |
1574 | devr->s1->ext.xrc.cq = devr->c0; | |
1575 | atomic_inc(&devr->p0->usecnt); | |
1576 | atomic_set(&devr->s0->usecnt, 0); | |
1577 | ||
e126ba97 EC |
1578 | return 0; |
1579 | ||
4aa17b28 HA |
1580 | error5: |
1581 | mlx5_ib_destroy_srq(devr->s0); | |
e126ba97 EC |
1582 | error4: |
1583 | mlx5_ib_dealloc_xrcd(devr->x1); | |
1584 | error3: | |
1585 | mlx5_ib_dealloc_xrcd(devr->x0); | |
1586 | error2: | |
1587 | mlx5_ib_destroy_cq(devr->c0); | |
1588 | error1: | |
1589 | mlx5_ib_dealloc_pd(devr->p0); | |
1590 | error0: | |
1591 | return ret; | |
1592 | } | |
1593 | ||
1594 | static void destroy_dev_resources(struct mlx5_ib_resources *devr) | |
1595 | { | |
4aa17b28 | 1596 | mlx5_ib_destroy_srq(devr->s1); |
e126ba97 EC |
1597 | mlx5_ib_destroy_srq(devr->s0); |
1598 | mlx5_ib_dealloc_xrcd(devr->x0); | |
1599 | mlx5_ib_dealloc_xrcd(devr->x1); | |
1600 | mlx5_ib_destroy_cq(devr->c0); | |
1601 | mlx5_ib_dealloc_pd(devr->p0); | |
1602 | } | |
1603 | ||
e53505a8 AS |
1604 | static u32 get_core_cap_flags(struct ib_device *ibdev) |
1605 | { | |
1606 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
1607 | enum rdma_link_layer ll = mlx5_ib_port_link_layer(ibdev, 1); | |
1608 | u8 l3_type_cap = MLX5_CAP_ROCE(dev->mdev, l3_type); | |
1609 | u8 roce_version_cap = MLX5_CAP_ROCE(dev->mdev, roce_version); | |
1610 | u32 ret = 0; | |
1611 | ||
1612 | if (ll == IB_LINK_LAYER_INFINIBAND) | |
1613 | return RDMA_CORE_PORT_IBA_IB; | |
1614 | ||
1615 | if (!(l3_type_cap & MLX5_ROCE_L3_TYPE_IPV4_CAP)) | |
1616 | return 0; | |
1617 | ||
1618 | if (!(l3_type_cap & MLX5_ROCE_L3_TYPE_IPV6_CAP)) | |
1619 | return 0; | |
1620 | ||
1621 | if (roce_version_cap & MLX5_ROCE_VERSION_1_CAP) | |
1622 | ret |= RDMA_CORE_PORT_IBA_ROCE; | |
1623 | ||
1624 | if (roce_version_cap & MLX5_ROCE_VERSION_2_CAP) | |
1625 | ret |= RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP; | |
1626 | ||
1627 | return ret; | |
1628 | } | |
1629 | ||
7738613e IW |
1630 | static int mlx5_port_immutable(struct ib_device *ibdev, u8 port_num, |
1631 | struct ib_port_immutable *immutable) | |
1632 | { | |
1633 | struct ib_port_attr attr; | |
1634 | int err; | |
1635 | ||
1636 | err = mlx5_ib_query_port(ibdev, port_num, &attr); | |
1637 | if (err) | |
1638 | return err; | |
1639 | ||
1640 | immutable->pkey_tbl_len = attr.pkey_tbl_len; | |
1641 | immutable->gid_tbl_len = attr.gid_tbl_len; | |
e53505a8 | 1642 | immutable->core_cap_flags = get_core_cap_flags(ibdev); |
337877a4 | 1643 | immutable->max_mad_size = IB_MGMT_MAD_SIZE; |
7738613e IW |
1644 | |
1645 | return 0; | |
1646 | } | |
1647 | ||
fc24fc5e AS |
1648 | static int mlx5_enable_roce(struct mlx5_ib_dev *dev) |
1649 | { | |
e53505a8 AS |
1650 | int err; |
1651 | ||
fc24fc5e | 1652 | dev->roce.nb.notifier_call = mlx5_netdev_event; |
e53505a8 AS |
1653 | err = register_netdevice_notifier(&dev->roce.nb); |
1654 | if (err) | |
1655 | return err; | |
1656 | ||
1657 | err = mlx5_nic_vport_enable_roce(dev->mdev); | |
1658 | if (err) | |
1659 | goto err_unregister_netdevice_notifier; | |
1660 | ||
1661 | return 0; | |
1662 | ||
1663 | err_unregister_netdevice_notifier: | |
1664 | unregister_netdevice_notifier(&dev->roce.nb); | |
1665 | return err; | |
fc24fc5e AS |
1666 | } |
1667 | ||
1668 | static void mlx5_disable_roce(struct mlx5_ib_dev *dev) | |
1669 | { | |
e53505a8 | 1670 | mlx5_nic_vport_disable_roce(dev->mdev); |
fc24fc5e AS |
1671 | unregister_netdevice_notifier(&dev->roce.nb); |
1672 | } | |
1673 | ||
9603b61d | 1674 | static void *mlx5_ib_add(struct mlx5_core_dev *mdev) |
e126ba97 | 1675 | { |
e126ba97 | 1676 | struct mlx5_ib_dev *dev; |
ebd61f68 AS |
1677 | enum rdma_link_layer ll; |
1678 | int port_type_cap; | |
e126ba97 EC |
1679 | int err; |
1680 | int i; | |
1681 | ||
ebd61f68 AS |
1682 | port_type_cap = MLX5_CAP_GEN(mdev, port_type); |
1683 | ll = mlx5_port_type_cap_to_rdma_ll(port_type_cap); | |
1684 | ||
e53505a8 | 1685 | if ((ll == IB_LINK_LAYER_ETHERNET) && !MLX5_CAP_GEN(mdev, roce)) |
647241ea MD |
1686 | return NULL; |
1687 | ||
e126ba97 EC |
1688 | printk_once(KERN_INFO "%s", mlx5_version); |
1689 | ||
1690 | dev = (struct mlx5_ib_dev *)ib_alloc_device(sizeof(*dev)); | |
1691 | if (!dev) | |
9603b61d | 1692 | return NULL; |
e126ba97 | 1693 | |
9603b61d | 1694 | dev->mdev = mdev; |
e126ba97 | 1695 | |
fc24fc5e | 1696 | rwlock_init(&dev->roce.netdev_lock); |
e126ba97 EC |
1697 | err = get_port_caps(dev); |
1698 | if (err) | |
9603b61d | 1699 | goto err_dealloc; |
e126ba97 | 1700 | |
1b5daf11 MD |
1701 | if (mlx5_use_mad_ifc(dev)) |
1702 | get_ext_port_caps(dev); | |
e126ba97 | 1703 | |
e126ba97 EC |
1704 | MLX5_INIT_DOORBELL_LOCK(&dev->uar_lock); |
1705 | ||
1706 | strlcpy(dev->ib_dev.name, "mlx5_%d", IB_DEVICE_NAME_MAX); | |
1707 | dev->ib_dev.owner = THIS_MODULE; | |
1708 | dev->ib_dev.node_type = RDMA_NODE_IB_CA; | |
c6790aa9 | 1709 | dev->ib_dev.local_dma_lkey = 0 /* not supported for now */; |
938fe83c | 1710 | dev->num_ports = MLX5_CAP_GEN(mdev, num_ports); |
e126ba97 | 1711 | dev->ib_dev.phys_port_cnt = dev->num_ports; |
233d05d2 SM |
1712 | dev->ib_dev.num_comp_vectors = |
1713 | dev->mdev->priv.eq_table.num_comp_vectors; | |
e126ba97 EC |
1714 | dev->ib_dev.dma_device = &mdev->pdev->dev; |
1715 | ||
1716 | dev->ib_dev.uverbs_abi_ver = MLX5_IB_UVERBS_ABI_VERSION; | |
1717 | dev->ib_dev.uverbs_cmd_mask = | |
1718 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
1719 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
1720 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
1721 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
1722 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
1723 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
1724 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
1725 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
1726 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
1727 | (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | | |
1728 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | | |
1729 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
1730 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
1731 | (1ull << IB_USER_VERBS_CMD_QUERY_QP) | | |
1732 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | |
1733 | (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | | |
1734 | (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) | | |
1735 | (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | | |
1736 | (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | | |
1737 | (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | | |
1738 | (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) | | |
1739 | (1ull << IB_USER_VERBS_CMD_CREATE_XSRQ) | | |
1740 | (1ull << IB_USER_VERBS_CMD_OPEN_QP); | |
1707cb4a HE |
1741 | dev->ib_dev.uverbs_ex_cmd_mask = |
1742 | (1ull << IB_USER_VERBS_EX_CMD_QUERY_DEVICE); | |
e126ba97 EC |
1743 | |
1744 | dev->ib_dev.query_device = mlx5_ib_query_device; | |
1745 | dev->ib_dev.query_port = mlx5_ib_query_port; | |
ebd61f68 | 1746 | dev->ib_dev.get_link_layer = mlx5_ib_port_link_layer; |
fc24fc5e AS |
1747 | if (ll == IB_LINK_LAYER_ETHERNET) |
1748 | dev->ib_dev.get_netdev = mlx5_ib_get_netdev; | |
e126ba97 | 1749 | dev->ib_dev.query_gid = mlx5_ib_query_gid; |
3cca2606 AS |
1750 | dev->ib_dev.add_gid = mlx5_ib_add_gid; |
1751 | dev->ib_dev.del_gid = mlx5_ib_del_gid; | |
e126ba97 EC |
1752 | dev->ib_dev.query_pkey = mlx5_ib_query_pkey; |
1753 | dev->ib_dev.modify_device = mlx5_ib_modify_device; | |
1754 | dev->ib_dev.modify_port = mlx5_ib_modify_port; | |
1755 | dev->ib_dev.alloc_ucontext = mlx5_ib_alloc_ucontext; | |
1756 | dev->ib_dev.dealloc_ucontext = mlx5_ib_dealloc_ucontext; | |
1757 | dev->ib_dev.mmap = mlx5_ib_mmap; | |
1758 | dev->ib_dev.alloc_pd = mlx5_ib_alloc_pd; | |
1759 | dev->ib_dev.dealloc_pd = mlx5_ib_dealloc_pd; | |
1760 | dev->ib_dev.create_ah = mlx5_ib_create_ah; | |
1761 | dev->ib_dev.query_ah = mlx5_ib_query_ah; | |
1762 | dev->ib_dev.destroy_ah = mlx5_ib_destroy_ah; | |
1763 | dev->ib_dev.create_srq = mlx5_ib_create_srq; | |
1764 | dev->ib_dev.modify_srq = mlx5_ib_modify_srq; | |
1765 | dev->ib_dev.query_srq = mlx5_ib_query_srq; | |
1766 | dev->ib_dev.destroy_srq = mlx5_ib_destroy_srq; | |
1767 | dev->ib_dev.post_srq_recv = mlx5_ib_post_srq_recv; | |
1768 | dev->ib_dev.create_qp = mlx5_ib_create_qp; | |
1769 | dev->ib_dev.modify_qp = mlx5_ib_modify_qp; | |
1770 | dev->ib_dev.query_qp = mlx5_ib_query_qp; | |
1771 | dev->ib_dev.destroy_qp = mlx5_ib_destroy_qp; | |
1772 | dev->ib_dev.post_send = mlx5_ib_post_send; | |
1773 | dev->ib_dev.post_recv = mlx5_ib_post_recv; | |
1774 | dev->ib_dev.create_cq = mlx5_ib_create_cq; | |
1775 | dev->ib_dev.modify_cq = mlx5_ib_modify_cq; | |
1776 | dev->ib_dev.resize_cq = mlx5_ib_resize_cq; | |
1777 | dev->ib_dev.destroy_cq = mlx5_ib_destroy_cq; | |
1778 | dev->ib_dev.poll_cq = mlx5_ib_poll_cq; | |
1779 | dev->ib_dev.req_notify_cq = mlx5_ib_arm_cq; | |
1780 | dev->ib_dev.get_dma_mr = mlx5_ib_get_dma_mr; | |
1781 | dev->ib_dev.reg_user_mr = mlx5_ib_reg_user_mr; | |
1782 | dev->ib_dev.dereg_mr = mlx5_ib_dereg_mr; | |
1783 | dev->ib_dev.attach_mcast = mlx5_ib_mcg_attach; | |
1784 | dev->ib_dev.detach_mcast = mlx5_ib_mcg_detach; | |
1785 | dev->ib_dev.process_mad = mlx5_ib_process_mad; | |
9bee178b | 1786 | dev->ib_dev.alloc_mr = mlx5_ib_alloc_mr; |
8a187ee5 | 1787 | dev->ib_dev.map_mr_sg = mlx5_ib_map_mr_sg; |
d5436ba0 | 1788 | dev->ib_dev.check_mr_status = mlx5_ib_check_mr_status; |
7738613e | 1789 | dev->ib_dev.get_port_immutable = mlx5_port_immutable; |
e126ba97 | 1790 | |
938fe83c | 1791 | mlx5_ib_internal_fill_odp_caps(dev); |
8cdd312c | 1792 | |
938fe83c | 1793 | if (MLX5_CAP_GEN(mdev, xrc)) { |
e126ba97 EC |
1794 | dev->ib_dev.alloc_xrcd = mlx5_ib_alloc_xrcd; |
1795 | dev->ib_dev.dealloc_xrcd = mlx5_ib_dealloc_xrcd; | |
1796 | dev->ib_dev.uverbs_cmd_mask |= | |
1797 | (1ull << IB_USER_VERBS_CMD_OPEN_XRCD) | | |
1798 | (1ull << IB_USER_VERBS_CMD_CLOSE_XRCD); | |
1799 | } | |
1800 | ||
1801 | err = init_node_data(dev); | |
1802 | if (err) | |
233d05d2 | 1803 | goto err_dealloc; |
e126ba97 EC |
1804 | |
1805 | mutex_init(&dev->cap_mask_mutex); | |
e126ba97 | 1806 | |
fc24fc5e AS |
1807 | if (ll == IB_LINK_LAYER_ETHERNET) { |
1808 | err = mlx5_enable_roce(dev); | |
1809 | if (err) | |
1810 | goto err_dealloc; | |
1811 | } | |
1812 | ||
e126ba97 EC |
1813 | err = create_dev_resources(&dev->devr); |
1814 | if (err) | |
fc24fc5e | 1815 | goto err_disable_roce; |
e126ba97 | 1816 | |
6aec21f6 | 1817 | err = mlx5_ib_odp_init_one(dev); |
281d1a92 | 1818 | if (err) |
e126ba97 EC |
1819 | goto err_rsrc; |
1820 | ||
6aec21f6 HE |
1821 | err = ib_register_device(&dev->ib_dev, NULL); |
1822 | if (err) | |
1823 | goto err_odp; | |
1824 | ||
e126ba97 EC |
1825 | err = create_umr_res(dev); |
1826 | if (err) | |
1827 | goto err_dev; | |
1828 | ||
1829 | for (i = 0; i < ARRAY_SIZE(mlx5_class_attributes); i++) { | |
281d1a92 WY |
1830 | err = device_create_file(&dev->ib_dev.dev, |
1831 | mlx5_class_attributes[i]); | |
1832 | if (err) | |
e126ba97 EC |
1833 | goto err_umrc; |
1834 | } | |
1835 | ||
1836 | dev->ib_active = true; | |
1837 | ||
9603b61d | 1838 | return dev; |
e126ba97 EC |
1839 | |
1840 | err_umrc: | |
1841 | destroy_umrc_res(dev); | |
1842 | ||
1843 | err_dev: | |
1844 | ib_unregister_device(&dev->ib_dev); | |
1845 | ||
6aec21f6 HE |
1846 | err_odp: |
1847 | mlx5_ib_odp_remove_one(dev); | |
1848 | ||
e126ba97 EC |
1849 | err_rsrc: |
1850 | destroy_dev_resources(&dev->devr); | |
1851 | ||
fc24fc5e AS |
1852 | err_disable_roce: |
1853 | if (ll == IB_LINK_LAYER_ETHERNET) | |
1854 | mlx5_disable_roce(dev); | |
1855 | ||
9603b61d | 1856 | err_dealloc: |
e126ba97 EC |
1857 | ib_dealloc_device((struct ib_device *)dev); |
1858 | ||
9603b61d | 1859 | return NULL; |
e126ba97 EC |
1860 | } |
1861 | ||
9603b61d | 1862 | static void mlx5_ib_remove(struct mlx5_core_dev *mdev, void *context) |
e126ba97 | 1863 | { |
9603b61d | 1864 | struct mlx5_ib_dev *dev = context; |
fc24fc5e | 1865 | enum rdma_link_layer ll = mlx5_ib_port_link_layer(&dev->ib_dev, 1); |
6aec21f6 | 1866 | |
e126ba97 | 1867 | ib_unregister_device(&dev->ib_dev); |
eefd56e5 | 1868 | destroy_umrc_res(dev); |
6aec21f6 | 1869 | mlx5_ib_odp_remove_one(dev); |
e126ba97 | 1870 | destroy_dev_resources(&dev->devr); |
fc24fc5e AS |
1871 | if (ll == IB_LINK_LAYER_ETHERNET) |
1872 | mlx5_disable_roce(dev); | |
e126ba97 EC |
1873 | ib_dealloc_device(&dev->ib_dev); |
1874 | } | |
1875 | ||
9603b61d JM |
1876 | static struct mlx5_interface mlx5_ib_interface = { |
1877 | .add = mlx5_ib_add, | |
1878 | .remove = mlx5_ib_remove, | |
1879 | .event = mlx5_ib_event, | |
64613d94 | 1880 | .protocol = MLX5_INTERFACE_PROTOCOL_IB, |
e126ba97 EC |
1881 | }; |
1882 | ||
1883 | static int __init mlx5_ib_init(void) | |
1884 | { | |
6aec21f6 HE |
1885 | int err; |
1886 | ||
9603b61d JM |
1887 | if (deprecated_prof_sel != 2) |
1888 | pr_warn("prof_sel is deprecated for mlx5_ib, set it for mlx5_core\n"); | |
1889 | ||
6aec21f6 HE |
1890 | err = mlx5_ib_odp_init(); |
1891 | if (err) | |
1892 | return err; | |
1893 | ||
1894 | err = mlx5_register_interface(&mlx5_ib_interface); | |
1895 | if (err) | |
1896 | goto clean_odp; | |
1897 | ||
1898 | return err; | |
1899 | ||
1900 | clean_odp: | |
1901 | mlx5_ib_odp_cleanup(); | |
1902 | return err; | |
e126ba97 EC |
1903 | } |
1904 | ||
1905 | static void __exit mlx5_ib_cleanup(void) | |
1906 | { | |
9603b61d | 1907 | mlx5_unregister_interface(&mlx5_ib_interface); |
6aec21f6 | 1908 | mlx5_ib_odp_cleanup(); |
e126ba97 EC |
1909 | } |
1910 | ||
1911 | module_init(mlx5_ib_init); | |
1912 | module_exit(mlx5_ib_cleanup); |