Commit | Line | Data |
---|---|---|
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 | ||
1b5daf11 | 68 | static enum rdma_link_layer |
ebd61f68 | 69 | mlx5_port_type_cap_to_rdma_ll(int port_type_cap) |
1b5daf11 | 70 | { |
ebd61f68 | 71 | switch (port_type_cap) { |
1b5daf11 MD |
72 | case MLX5_CAP_PORT_TYPE_IB: |
73 | return IB_LINK_LAYER_INFINIBAND; | |
74 | case MLX5_CAP_PORT_TYPE_ETH: | |
75 | return IB_LINK_LAYER_ETHERNET; | |
76 | default: | |
77 | return IB_LINK_LAYER_UNSPECIFIED; | |
78 | } | |
79 | } | |
80 | ||
ebd61f68 AS |
81 | static enum rdma_link_layer |
82 | mlx5_ib_port_link_layer(struct ib_device *device, u8 port_num) | |
83 | { | |
84 | struct mlx5_ib_dev *dev = to_mdev(device); | |
85 | int port_type_cap = MLX5_CAP_GEN(dev->mdev, port_type); | |
86 | ||
87 | return mlx5_port_type_cap_to_rdma_ll(port_type_cap); | |
88 | } | |
89 | ||
fc24fc5e AS |
90 | static int mlx5_netdev_event(struct notifier_block *this, |
91 | unsigned long event, void *ptr) | |
92 | { | |
93 | struct net_device *ndev = netdev_notifier_info_to_dev(ptr); | |
94 | struct mlx5_ib_dev *ibdev = container_of(this, struct mlx5_ib_dev, | |
95 | roce.nb); | |
96 | ||
97 | if ((event != NETDEV_UNREGISTER) && (event != NETDEV_REGISTER)) | |
98 | return NOTIFY_DONE; | |
99 | ||
100 | write_lock(&ibdev->roce.netdev_lock); | |
101 | if (ndev->dev.parent == &ibdev->mdev->pdev->dev) | |
102 | ibdev->roce.netdev = (event == NETDEV_UNREGISTER) ? NULL : ndev; | |
103 | write_unlock(&ibdev->roce.netdev_lock); | |
104 | ||
105 | return NOTIFY_DONE; | |
106 | } | |
107 | ||
108 | static struct net_device *mlx5_ib_get_netdev(struct ib_device *device, | |
109 | u8 port_num) | |
110 | { | |
111 | struct mlx5_ib_dev *ibdev = to_mdev(device); | |
112 | struct net_device *ndev; | |
113 | ||
114 | /* Ensure ndev does not disappear before we invoke dev_hold() | |
115 | */ | |
116 | read_lock(&ibdev->roce.netdev_lock); | |
117 | ndev = ibdev->roce.netdev; | |
118 | if (ndev) | |
119 | dev_hold(ndev); | |
120 | read_unlock(&ibdev->roce.netdev_lock); | |
121 | ||
122 | return ndev; | |
123 | } | |
124 | ||
3f89a643 AS |
125 | static int mlx5_query_port_roce(struct ib_device *device, u8 port_num, |
126 | struct ib_port_attr *props) | |
127 | { | |
128 | struct mlx5_ib_dev *dev = to_mdev(device); | |
129 | struct net_device *ndev; | |
130 | enum ib_mtu ndev_ib_mtu; | |
131 | ||
132 | memset(props, 0, sizeof(*props)); | |
133 | ||
134 | props->port_cap_flags |= IB_PORT_CM_SUP; | |
135 | props->port_cap_flags |= IB_PORT_IP_BASED_GIDS; | |
136 | ||
137 | props->gid_tbl_len = MLX5_CAP_ROCE(dev->mdev, | |
138 | roce_address_table_size); | |
139 | props->max_mtu = IB_MTU_4096; | |
140 | props->max_msg_sz = 1 << MLX5_CAP_GEN(dev->mdev, log_max_msg); | |
141 | props->pkey_tbl_len = 1; | |
142 | props->state = IB_PORT_DOWN; | |
143 | props->phys_state = 3; | |
144 | ||
145 | mlx5_query_nic_vport_qkey_viol_cntr(dev->mdev, | |
146 | (u16 *)&props->qkey_viol_cntr); | |
147 | ||
148 | ndev = mlx5_ib_get_netdev(device, port_num); | |
149 | if (!ndev) | |
150 | return 0; | |
151 | ||
152 | if (netif_running(ndev) && netif_carrier_ok(ndev)) { | |
153 | props->state = IB_PORT_ACTIVE; | |
154 | props->phys_state = 5; | |
155 | } | |
156 | ||
157 | ndev_ib_mtu = iboe_get_mtu(ndev->mtu); | |
158 | ||
159 | dev_put(ndev); | |
160 | ||
161 | props->active_mtu = min(props->max_mtu, ndev_ib_mtu); | |
162 | ||
163 | props->active_width = IB_WIDTH_4X; /* TODO */ | |
164 | props->active_speed = IB_SPEED_QDR; /* TODO */ | |
165 | ||
166 | return 0; | |
167 | } | |
168 | ||
3cca2606 AS |
169 | static void ib_gid_to_mlx5_roce_addr(const union ib_gid *gid, |
170 | const struct ib_gid_attr *attr, | |
171 | void *mlx5_addr) | |
172 | { | |
173 | #define MLX5_SET_RA(p, f, v) MLX5_SET(roce_addr_layout, p, f, v) | |
174 | char *mlx5_addr_l3_addr = MLX5_ADDR_OF(roce_addr_layout, mlx5_addr, | |
175 | source_l3_address); | |
176 | void *mlx5_addr_mac = MLX5_ADDR_OF(roce_addr_layout, mlx5_addr, | |
177 | source_mac_47_32); | |
178 | ||
179 | if (!gid) | |
180 | return; | |
181 | ||
182 | ether_addr_copy(mlx5_addr_mac, attr->ndev->dev_addr); | |
183 | ||
184 | if (is_vlan_dev(attr->ndev)) { | |
185 | MLX5_SET_RA(mlx5_addr, vlan_valid, 1); | |
186 | MLX5_SET_RA(mlx5_addr, vlan_id, vlan_dev_vlan_id(attr->ndev)); | |
187 | } | |
188 | ||
189 | switch (attr->gid_type) { | |
190 | case IB_GID_TYPE_IB: | |
191 | MLX5_SET_RA(mlx5_addr, roce_version, MLX5_ROCE_VERSION_1); | |
192 | break; | |
193 | case IB_GID_TYPE_ROCE_UDP_ENCAP: | |
194 | MLX5_SET_RA(mlx5_addr, roce_version, MLX5_ROCE_VERSION_2); | |
195 | break; | |
196 | ||
197 | default: | |
198 | WARN_ON(true); | |
199 | } | |
200 | ||
201 | if (attr->gid_type != IB_GID_TYPE_IB) { | |
202 | if (ipv6_addr_v4mapped((void *)gid)) | |
203 | MLX5_SET_RA(mlx5_addr, roce_l3_type, | |
204 | MLX5_ROCE_L3_TYPE_IPV4); | |
205 | else | |
206 | MLX5_SET_RA(mlx5_addr, roce_l3_type, | |
207 | MLX5_ROCE_L3_TYPE_IPV6); | |
208 | } | |
209 | ||
210 | if ((attr->gid_type == IB_GID_TYPE_IB) || | |
211 | !ipv6_addr_v4mapped((void *)gid)) | |
212 | memcpy(mlx5_addr_l3_addr, gid, sizeof(*gid)); | |
213 | else | |
214 | memcpy(&mlx5_addr_l3_addr[12], &gid->raw[12], 4); | |
215 | } | |
216 | ||
217 | static int set_roce_addr(struct ib_device *device, u8 port_num, | |
218 | unsigned int index, | |
219 | const union ib_gid *gid, | |
220 | const struct ib_gid_attr *attr) | |
221 | { | |
222 | struct mlx5_ib_dev *dev = to_mdev(device); | |
223 | u32 in[MLX5_ST_SZ_DW(set_roce_address_in)]; | |
224 | u32 out[MLX5_ST_SZ_DW(set_roce_address_out)]; | |
225 | void *in_addr = MLX5_ADDR_OF(set_roce_address_in, in, roce_address); | |
226 | enum rdma_link_layer ll = mlx5_ib_port_link_layer(device, port_num); | |
227 | ||
228 | if (ll != IB_LINK_LAYER_ETHERNET) | |
229 | return -EINVAL; | |
230 | ||
231 | memset(in, 0, sizeof(in)); | |
232 | ||
233 | ib_gid_to_mlx5_roce_addr(gid, attr, in_addr); | |
234 | ||
235 | MLX5_SET(set_roce_address_in, in, roce_address_index, index); | |
236 | MLX5_SET(set_roce_address_in, in, opcode, MLX5_CMD_OP_SET_ROCE_ADDRESS); | |
237 | ||
238 | memset(out, 0, sizeof(out)); | |
239 | return mlx5_cmd_exec(dev->mdev, in, sizeof(in), out, sizeof(out)); | |
240 | } | |
241 | ||
242 | static int mlx5_ib_add_gid(struct ib_device *device, u8 port_num, | |
243 | unsigned int index, const union ib_gid *gid, | |
244 | const struct ib_gid_attr *attr, | |
245 | __always_unused void **context) | |
246 | { | |
247 | return set_roce_addr(device, port_num, index, gid, attr); | |
248 | } | |
249 | ||
250 | static int mlx5_ib_del_gid(struct ib_device *device, u8 port_num, | |
251 | unsigned int index, __always_unused void **context) | |
252 | { | |
253 | return set_roce_addr(device, port_num, index, NULL, NULL); | |
254 | } | |
255 | ||
2811ba51 AS |
256 | __be16 mlx5_get_roce_udp_sport(struct mlx5_ib_dev *dev, u8 port_num, |
257 | int index) | |
258 | { | |
259 | struct ib_gid_attr attr; | |
260 | union ib_gid gid; | |
261 | ||
262 | if (ib_get_cached_gid(&dev->ib_dev, port_num, index, &gid, &attr)) | |
263 | return 0; | |
264 | ||
265 | if (!attr.ndev) | |
266 | return 0; | |
267 | ||
268 | dev_put(attr.ndev); | |
269 | ||
270 | if (attr.gid_type != IB_GID_TYPE_ROCE_UDP_ENCAP) | |
271 | return 0; | |
272 | ||
273 | return cpu_to_be16(MLX5_CAP_ROCE(dev->mdev, r_roce_min_src_udp_port)); | |
274 | } | |
275 | ||
1b5daf11 MD |
276 | static int mlx5_use_mad_ifc(struct mlx5_ib_dev *dev) |
277 | { | |
278 | return !dev->mdev->issi; | |
279 | } | |
280 | ||
281 | enum { | |
282 | MLX5_VPORT_ACCESS_METHOD_MAD, | |
283 | MLX5_VPORT_ACCESS_METHOD_HCA, | |
284 | MLX5_VPORT_ACCESS_METHOD_NIC, | |
285 | }; | |
286 | ||
287 | static int mlx5_get_vport_access_method(struct ib_device *ibdev) | |
288 | { | |
289 | if (mlx5_use_mad_ifc(to_mdev(ibdev))) | |
290 | return MLX5_VPORT_ACCESS_METHOD_MAD; | |
291 | ||
ebd61f68 | 292 | if (mlx5_ib_port_link_layer(ibdev, 1) == |
1b5daf11 MD |
293 | IB_LINK_LAYER_ETHERNET) |
294 | return MLX5_VPORT_ACCESS_METHOD_NIC; | |
295 | ||
296 | return MLX5_VPORT_ACCESS_METHOD_HCA; | |
297 | } | |
298 | ||
299 | static int mlx5_query_system_image_guid(struct ib_device *ibdev, | |
300 | __be64 *sys_image_guid) | |
301 | { | |
302 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
303 | struct mlx5_core_dev *mdev = dev->mdev; | |
304 | u64 tmp; | |
305 | int err; | |
306 | ||
307 | switch (mlx5_get_vport_access_method(ibdev)) { | |
308 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
309 | return mlx5_query_mad_ifc_system_image_guid(ibdev, | |
310 | sys_image_guid); | |
311 | ||
312 | case MLX5_VPORT_ACCESS_METHOD_HCA: | |
313 | err = mlx5_query_hca_vport_system_image_guid(mdev, &tmp); | |
3f89a643 AS |
314 | break; |
315 | ||
316 | case MLX5_VPORT_ACCESS_METHOD_NIC: | |
317 | err = mlx5_query_nic_vport_system_image_guid(mdev, &tmp); | |
318 | break; | |
1b5daf11 MD |
319 | |
320 | default: | |
321 | return -EINVAL; | |
322 | } | |
3f89a643 AS |
323 | |
324 | if (!err) | |
325 | *sys_image_guid = cpu_to_be64(tmp); | |
326 | ||
327 | return err; | |
328 | ||
1b5daf11 MD |
329 | } |
330 | ||
331 | static int mlx5_query_max_pkeys(struct ib_device *ibdev, | |
332 | u16 *max_pkeys) | |
333 | { | |
334 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
335 | struct mlx5_core_dev *mdev = dev->mdev; | |
336 | ||
337 | switch (mlx5_get_vport_access_method(ibdev)) { | |
338 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
339 | return mlx5_query_mad_ifc_max_pkeys(ibdev, max_pkeys); | |
340 | ||
341 | case MLX5_VPORT_ACCESS_METHOD_HCA: | |
342 | case MLX5_VPORT_ACCESS_METHOD_NIC: | |
343 | *max_pkeys = mlx5_to_sw_pkey_sz(MLX5_CAP_GEN(mdev, | |
344 | pkey_table_size)); | |
345 | return 0; | |
346 | ||
347 | default: | |
348 | return -EINVAL; | |
349 | } | |
350 | } | |
351 | ||
352 | static int mlx5_query_vendor_id(struct ib_device *ibdev, | |
353 | u32 *vendor_id) | |
354 | { | |
355 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
356 | ||
357 | switch (mlx5_get_vport_access_method(ibdev)) { | |
358 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
359 | return mlx5_query_mad_ifc_vendor_id(ibdev, vendor_id); | |
360 | ||
361 | case MLX5_VPORT_ACCESS_METHOD_HCA: | |
362 | case MLX5_VPORT_ACCESS_METHOD_NIC: | |
363 | return mlx5_core_query_vendor_id(dev->mdev, vendor_id); | |
364 | ||
365 | default: | |
366 | return -EINVAL; | |
367 | } | |
368 | } | |
369 | ||
370 | static int mlx5_query_node_guid(struct mlx5_ib_dev *dev, | |
371 | __be64 *node_guid) | |
372 | { | |
373 | u64 tmp; | |
374 | int err; | |
375 | ||
376 | switch (mlx5_get_vport_access_method(&dev->ib_dev)) { | |
377 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
378 | return mlx5_query_mad_ifc_node_guid(dev, node_guid); | |
379 | ||
380 | case MLX5_VPORT_ACCESS_METHOD_HCA: | |
381 | err = mlx5_query_hca_vport_node_guid(dev->mdev, &tmp); | |
3f89a643 AS |
382 | break; |
383 | ||
384 | case MLX5_VPORT_ACCESS_METHOD_NIC: | |
385 | err = mlx5_query_nic_vport_node_guid(dev->mdev, &tmp); | |
386 | break; | |
1b5daf11 MD |
387 | |
388 | default: | |
389 | return -EINVAL; | |
390 | } | |
3f89a643 AS |
391 | |
392 | if (!err) | |
393 | *node_guid = cpu_to_be64(tmp); | |
394 | ||
395 | return err; | |
1b5daf11 MD |
396 | } |
397 | ||
398 | struct mlx5_reg_node_desc { | |
399 | u8 desc[64]; | |
400 | }; | |
401 | ||
402 | static int mlx5_query_node_desc(struct mlx5_ib_dev *dev, char *node_desc) | |
403 | { | |
404 | struct mlx5_reg_node_desc in; | |
405 | ||
406 | if (mlx5_use_mad_ifc(dev)) | |
407 | return mlx5_query_mad_ifc_node_desc(dev, node_desc); | |
408 | ||
409 | memset(&in, 0, sizeof(in)); | |
410 | ||
411 | return mlx5_core_access_reg(dev->mdev, &in, sizeof(in), node_desc, | |
412 | sizeof(struct mlx5_reg_node_desc), | |
413 | MLX5_REG_NODE_DESC, 0, 0); | |
414 | } | |
415 | ||
e126ba97 | 416 | static int mlx5_ib_query_device(struct ib_device *ibdev, |
2528e33e MB |
417 | struct ib_device_attr *props, |
418 | struct ib_udata *uhw) | |
e126ba97 EC |
419 | { |
420 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
938fe83c | 421 | struct mlx5_core_dev *mdev = dev->mdev; |
e126ba97 EC |
422 | int err = -ENOMEM; |
423 | int max_rq_sg; | |
424 | int max_sq_sg; | |
e0238a6a | 425 | u64 min_page_size = 1ull << MLX5_CAP_GEN(mdev, log_pg_sz); |
e126ba97 | 426 | |
2528e33e MB |
427 | if (uhw->inlen || uhw->outlen) |
428 | return -EINVAL; | |
429 | ||
1b5daf11 MD |
430 | memset(props, 0, sizeof(*props)); |
431 | err = mlx5_query_system_image_guid(ibdev, | |
432 | &props->sys_image_guid); | |
433 | if (err) | |
434 | return err; | |
e126ba97 | 435 | |
1b5daf11 | 436 | err = mlx5_query_max_pkeys(ibdev, &props->max_pkeys); |
e126ba97 | 437 | if (err) |
1b5daf11 | 438 | return err; |
e126ba97 | 439 | |
1b5daf11 MD |
440 | err = mlx5_query_vendor_id(ibdev, &props->vendor_id); |
441 | if (err) | |
442 | return err; | |
e126ba97 | 443 | |
9603b61d JM |
444 | props->fw_ver = ((u64)fw_rev_maj(dev->mdev) << 32) | |
445 | (fw_rev_min(dev->mdev) << 16) | | |
446 | fw_rev_sub(dev->mdev); | |
e126ba97 EC |
447 | props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | |
448 | IB_DEVICE_PORT_ACTIVE_EVENT | | |
449 | IB_DEVICE_SYS_IMAGE_GUID | | |
1a4c3a3d | 450 | IB_DEVICE_RC_RNR_NAK_GEN; |
938fe83c SM |
451 | |
452 | if (MLX5_CAP_GEN(mdev, pkv)) | |
e126ba97 | 453 | props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; |
938fe83c | 454 | if (MLX5_CAP_GEN(mdev, qkv)) |
e126ba97 | 455 | props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; |
938fe83c | 456 | if (MLX5_CAP_GEN(mdev, apm)) |
e126ba97 | 457 | props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; |
938fe83c | 458 | if (MLX5_CAP_GEN(mdev, xrc)) |
e126ba97 EC |
459 | props->device_cap_flags |= IB_DEVICE_XRC; |
460 | props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; | |
938fe83c | 461 | if (MLX5_CAP_GEN(mdev, sho)) { |
2dea9094 SG |
462 | props->device_cap_flags |= IB_DEVICE_SIGNATURE_HANDOVER; |
463 | /* At this stage no support for signature handover */ | |
464 | props->sig_prot_cap = IB_PROT_T10DIF_TYPE_1 | | |
465 | IB_PROT_T10DIF_TYPE_2 | | |
466 | IB_PROT_T10DIF_TYPE_3; | |
467 | props->sig_guard_cap = IB_GUARD_T10DIF_CRC | | |
468 | IB_GUARD_T10DIF_CSUM; | |
469 | } | |
938fe83c | 470 | if (MLX5_CAP_GEN(mdev, block_lb_mc)) |
f360d88a | 471 | props->device_cap_flags |= IB_DEVICE_BLOCK_MULTICAST_LOOPBACK; |
e126ba97 | 472 | |
1b5daf11 MD |
473 | props->vendor_part_id = mdev->pdev->device; |
474 | props->hw_ver = mdev->pdev->revision; | |
e126ba97 EC |
475 | |
476 | props->max_mr_size = ~0ull; | |
e0238a6a | 477 | props->page_size_cap = ~(min_page_size - 1); |
938fe83c SM |
478 | props->max_qp = 1 << MLX5_CAP_GEN(mdev, log_max_qp); |
479 | props->max_qp_wr = 1 << MLX5_CAP_GEN(mdev, log_max_qp_sz); | |
480 | max_rq_sg = MLX5_CAP_GEN(mdev, max_wqe_sz_rq) / | |
481 | sizeof(struct mlx5_wqe_data_seg); | |
482 | max_sq_sg = (MLX5_CAP_GEN(mdev, max_wqe_sz_sq) - | |
483 | sizeof(struct mlx5_wqe_ctrl_seg)) / | |
484 | sizeof(struct mlx5_wqe_data_seg); | |
e126ba97 | 485 | props->max_sge = min(max_rq_sg, max_sq_sg); |
18ebd407 | 486 | props->max_sge_rd = props->max_sge; |
938fe83c SM |
487 | props->max_cq = 1 << MLX5_CAP_GEN(mdev, log_max_cq); |
488 | props->max_cqe = (1 << MLX5_CAP_GEN(mdev, log_max_eq_sz)) - 1; | |
489 | props->max_mr = 1 << MLX5_CAP_GEN(mdev, log_max_mkey); | |
490 | props->max_pd = 1 << MLX5_CAP_GEN(mdev, log_max_pd); | |
491 | props->max_qp_rd_atom = 1 << MLX5_CAP_GEN(mdev, log_max_ra_req_qp); | |
492 | props->max_qp_init_rd_atom = 1 << MLX5_CAP_GEN(mdev, log_max_ra_res_qp); | |
493 | props->max_srq = 1 << MLX5_CAP_GEN(mdev, log_max_srq); | |
494 | props->max_srq_wr = (1 << MLX5_CAP_GEN(mdev, log_max_srq_sz)) - 1; | |
495 | props->local_ca_ack_delay = MLX5_CAP_GEN(mdev, local_ca_ack_delay); | |
e126ba97 | 496 | props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; |
e126ba97 EC |
497 | props->max_srq_sge = max_rq_sg - 1; |
498 | props->max_fast_reg_page_list_len = (unsigned int)-1; | |
81bea28f EC |
499 | props->atomic_cap = IB_ATOMIC_NONE; |
500 | props->masked_atomic_cap = IB_ATOMIC_NONE; | |
938fe83c SM |
501 | props->max_mcast_grp = 1 << MLX5_CAP_GEN(mdev, log_max_mcg); |
502 | props->max_mcast_qp_attach = MLX5_CAP_GEN(mdev, max_qp_mcg); | |
e126ba97 EC |
503 | props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * |
504 | props->max_mcast_grp; | |
505 | props->max_map_per_fmr = INT_MAX; /* no limit in ConnectIB */ | |
506 | ||
8cdd312c | 507 | #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING |
938fe83c | 508 | if (MLX5_CAP_GEN(mdev, pg)) |
8cdd312c HE |
509 | props->device_cap_flags |= IB_DEVICE_ON_DEMAND_PAGING; |
510 | props->odp_caps = dev->odp_caps; | |
511 | #endif | |
512 | ||
1b5daf11 | 513 | return 0; |
e126ba97 EC |
514 | } |
515 | ||
1b5daf11 MD |
516 | enum mlx5_ib_width { |
517 | MLX5_IB_WIDTH_1X = 1 << 0, | |
518 | MLX5_IB_WIDTH_2X = 1 << 1, | |
519 | MLX5_IB_WIDTH_4X = 1 << 2, | |
520 | MLX5_IB_WIDTH_8X = 1 << 3, | |
521 | MLX5_IB_WIDTH_12X = 1 << 4 | |
522 | }; | |
523 | ||
524 | static int translate_active_width(struct ib_device *ibdev, u8 active_width, | |
525 | u8 *ib_width) | |
e126ba97 EC |
526 | { |
527 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
1b5daf11 MD |
528 | int err = 0; |
529 | ||
530 | if (active_width & MLX5_IB_WIDTH_1X) { | |
531 | *ib_width = IB_WIDTH_1X; | |
532 | } else if (active_width & MLX5_IB_WIDTH_2X) { | |
533 | mlx5_ib_dbg(dev, "active_width %d is not supported by IB spec\n", | |
534 | (int)active_width); | |
535 | err = -EINVAL; | |
536 | } else if (active_width & MLX5_IB_WIDTH_4X) { | |
537 | *ib_width = IB_WIDTH_4X; | |
538 | } else if (active_width & MLX5_IB_WIDTH_8X) { | |
539 | *ib_width = IB_WIDTH_8X; | |
540 | } else if (active_width & MLX5_IB_WIDTH_12X) { | |
541 | *ib_width = IB_WIDTH_12X; | |
542 | } else { | |
543 | mlx5_ib_dbg(dev, "Invalid active_width %d\n", | |
544 | (int)active_width); | |
545 | err = -EINVAL; | |
e126ba97 EC |
546 | } |
547 | ||
1b5daf11 MD |
548 | return err; |
549 | } | |
e126ba97 | 550 | |
1b5daf11 MD |
551 | static int mlx5_mtu_to_ib_mtu(int mtu) |
552 | { | |
553 | switch (mtu) { | |
554 | case 256: return 1; | |
555 | case 512: return 2; | |
556 | case 1024: return 3; | |
557 | case 2048: return 4; | |
558 | case 4096: return 5; | |
559 | default: | |
560 | pr_warn("invalid mtu\n"); | |
561 | return -1; | |
e126ba97 | 562 | } |
1b5daf11 | 563 | } |
e126ba97 | 564 | |
1b5daf11 MD |
565 | enum ib_max_vl_num { |
566 | __IB_MAX_VL_0 = 1, | |
567 | __IB_MAX_VL_0_1 = 2, | |
568 | __IB_MAX_VL_0_3 = 3, | |
569 | __IB_MAX_VL_0_7 = 4, | |
570 | __IB_MAX_VL_0_14 = 5, | |
571 | }; | |
e126ba97 | 572 | |
1b5daf11 MD |
573 | enum mlx5_vl_hw_cap { |
574 | MLX5_VL_HW_0 = 1, | |
575 | MLX5_VL_HW_0_1 = 2, | |
576 | MLX5_VL_HW_0_2 = 3, | |
577 | MLX5_VL_HW_0_3 = 4, | |
578 | MLX5_VL_HW_0_4 = 5, | |
579 | MLX5_VL_HW_0_5 = 6, | |
580 | MLX5_VL_HW_0_6 = 7, | |
581 | MLX5_VL_HW_0_7 = 8, | |
582 | MLX5_VL_HW_0_14 = 15 | |
583 | }; | |
e126ba97 | 584 | |
1b5daf11 MD |
585 | static int translate_max_vl_num(struct ib_device *ibdev, u8 vl_hw_cap, |
586 | u8 *max_vl_num) | |
587 | { | |
588 | switch (vl_hw_cap) { | |
589 | case MLX5_VL_HW_0: | |
590 | *max_vl_num = __IB_MAX_VL_0; | |
591 | break; | |
592 | case MLX5_VL_HW_0_1: | |
593 | *max_vl_num = __IB_MAX_VL_0_1; | |
594 | break; | |
595 | case MLX5_VL_HW_0_3: | |
596 | *max_vl_num = __IB_MAX_VL_0_3; | |
597 | break; | |
598 | case MLX5_VL_HW_0_7: | |
599 | *max_vl_num = __IB_MAX_VL_0_7; | |
600 | break; | |
601 | case MLX5_VL_HW_0_14: | |
602 | *max_vl_num = __IB_MAX_VL_0_14; | |
603 | break; | |
e126ba97 | 604 | |
1b5daf11 MD |
605 | default: |
606 | return -EINVAL; | |
e126ba97 | 607 | } |
e126ba97 | 608 | |
1b5daf11 | 609 | return 0; |
e126ba97 EC |
610 | } |
611 | ||
1b5daf11 MD |
612 | static int mlx5_query_hca_port(struct ib_device *ibdev, u8 port, |
613 | struct ib_port_attr *props) | |
e126ba97 | 614 | { |
1b5daf11 MD |
615 | struct mlx5_ib_dev *dev = to_mdev(ibdev); |
616 | struct mlx5_core_dev *mdev = dev->mdev; | |
617 | struct mlx5_hca_vport_context *rep; | |
618 | int max_mtu; | |
619 | int oper_mtu; | |
620 | int err; | |
621 | u8 ib_link_width_oper; | |
622 | u8 vl_hw_cap; | |
e126ba97 | 623 | |
1b5daf11 MD |
624 | rep = kzalloc(sizeof(*rep), GFP_KERNEL); |
625 | if (!rep) { | |
626 | err = -ENOMEM; | |
e126ba97 | 627 | goto out; |
e126ba97 | 628 | } |
e126ba97 | 629 | |
1b5daf11 | 630 | memset(props, 0, sizeof(*props)); |
e126ba97 | 631 | |
1b5daf11 | 632 | err = mlx5_query_hca_vport_context(mdev, 0, port, 0, rep); |
e126ba97 EC |
633 | if (err) |
634 | goto out; | |
635 | ||
1b5daf11 MD |
636 | props->lid = rep->lid; |
637 | props->lmc = rep->lmc; | |
638 | props->sm_lid = rep->sm_lid; | |
639 | props->sm_sl = rep->sm_sl; | |
640 | props->state = rep->vport_state; | |
641 | props->phys_state = rep->port_physical_state; | |
642 | props->port_cap_flags = rep->cap_mask1; | |
643 | props->gid_tbl_len = mlx5_get_gid_table_len(MLX5_CAP_GEN(mdev, gid_table_size)); | |
644 | props->max_msg_sz = 1 << MLX5_CAP_GEN(mdev, log_max_msg); | |
645 | props->pkey_tbl_len = mlx5_to_sw_pkey_sz(MLX5_CAP_GEN(mdev, pkey_table_size)); | |
646 | props->bad_pkey_cntr = rep->pkey_violation_counter; | |
647 | props->qkey_viol_cntr = rep->qkey_violation_counter; | |
648 | props->subnet_timeout = rep->subnet_timeout; | |
649 | props->init_type_reply = rep->init_type_reply; | |
e126ba97 | 650 | |
1b5daf11 MD |
651 | err = mlx5_query_port_link_width_oper(mdev, &ib_link_width_oper, port); |
652 | if (err) | |
e126ba97 | 653 | goto out; |
e126ba97 | 654 | |
1b5daf11 MD |
655 | err = translate_active_width(ibdev, ib_link_width_oper, |
656 | &props->active_width); | |
657 | if (err) | |
658 | goto out; | |
659 | err = mlx5_query_port_proto_oper(mdev, &props->active_speed, MLX5_PTYS_IB, | |
660 | port); | |
e126ba97 EC |
661 | if (err) |
662 | goto out; | |
663 | ||
facc9699 | 664 | mlx5_query_port_max_mtu(mdev, &max_mtu, port); |
e126ba97 | 665 | |
1b5daf11 | 666 | props->max_mtu = mlx5_mtu_to_ib_mtu(max_mtu); |
e126ba97 | 667 | |
facc9699 | 668 | mlx5_query_port_oper_mtu(mdev, &oper_mtu, port); |
e126ba97 | 669 | |
1b5daf11 | 670 | props->active_mtu = mlx5_mtu_to_ib_mtu(oper_mtu); |
e126ba97 | 671 | |
1b5daf11 MD |
672 | err = mlx5_query_port_vl_hw_cap(mdev, &vl_hw_cap, port); |
673 | if (err) | |
674 | goto out; | |
e126ba97 | 675 | |
1b5daf11 MD |
676 | err = translate_max_vl_num(ibdev, vl_hw_cap, |
677 | &props->max_vl_num); | |
e126ba97 | 678 | out: |
1b5daf11 | 679 | kfree(rep); |
e126ba97 EC |
680 | return err; |
681 | } | |
682 | ||
1b5daf11 MD |
683 | int mlx5_ib_query_port(struct ib_device *ibdev, u8 port, |
684 | struct ib_port_attr *props) | |
e126ba97 | 685 | { |
1b5daf11 MD |
686 | switch (mlx5_get_vport_access_method(ibdev)) { |
687 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
688 | return mlx5_query_mad_ifc_port(ibdev, port, props); | |
e126ba97 | 689 | |
1b5daf11 MD |
690 | case MLX5_VPORT_ACCESS_METHOD_HCA: |
691 | return mlx5_query_hca_port(ibdev, port, props); | |
e126ba97 | 692 | |
3f89a643 AS |
693 | case MLX5_VPORT_ACCESS_METHOD_NIC: |
694 | return mlx5_query_port_roce(ibdev, port, props); | |
695 | ||
1b5daf11 MD |
696 | default: |
697 | return -EINVAL; | |
698 | } | |
699 | } | |
e126ba97 | 700 | |
1b5daf11 MD |
701 | static int mlx5_ib_query_gid(struct ib_device *ibdev, u8 port, int index, |
702 | union ib_gid *gid) | |
703 | { | |
704 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
705 | struct mlx5_core_dev *mdev = dev->mdev; | |
e126ba97 | 706 | |
1b5daf11 MD |
707 | switch (mlx5_get_vport_access_method(ibdev)) { |
708 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
709 | return mlx5_query_mad_ifc_gids(ibdev, port, index, gid); | |
e126ba97 | 710 | |
1b5daf11 MD |
711 | case MLX5_VPORT_ACCESS_METHOD_HCA: |
712 | return mlx5_query_hca_vport_gid(mdev, 0, port, 0, index, gid); | |
713 | ||
714 | default: | |
715 | return -EINVAL; | |
716 | } | |
e126ba97 | 717 | |
e126ba97 EC |
718 | } |
719 | ||
1b5daf11 MD |
720 | static int mlx5_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, |
721 | u16 *pkey) | |
722 | { | |
723 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
724 | struct mlx5_core_dev *mdev = dev->mdev; | |
725 | ||
726 | switch (mlx5_get_vport_access_method(ibdev)) { | |
727 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
728 | return mlx5_query_mad_ifc_pkey(ibdev, port, index, pkey); | |
729 | ||
730 | case MLX5_VPORT_ACCESS_METHOD_HCA: | |
731 | case MLX5_VPORT_ACCESS_METHOD_NIC: | |
732 | return mlx5_query_hca_vport_pkey(mdev, 0, port, 0, index, | |
733 | pkey); | |
734 | default: | |
735 | return -EINVAL; | |
736 | } | |
737 | } | |
e126ba97 EC |
738 | |
739 | static int mlx5_ib_modify_device(struct ib_device *ibdev, int mask, | |
740 | struct ib_device_modify *props) | |
741 | { | |
742 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
743 | struct mlx5_reg_node_desc in; | |
744 | struct mlx5_reg_node_desc out; | |
745 | int err; | |
746 | ||
747 | if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) | |
748 | return -EOPNOTSUPP; | |
749 | ||
750 | if (!(mask & IB_DEVICE_MODIFY_NODE_DESC)) | |
751 | return 0; | |
752 | ||
753 | /* | |
754 | * If possible, pass node desc to FW, so it can generate | |
755 | * a 144 trap. If cmd fails, just ignore. | |
756 | */ | |
757 | memcpy(&in, props->node_desc, 64); | |
9603b61d | 758 | err = mlx5_core_access_reg(dev->mdev, &in, sizeof(in), &out, |
e126ba97 EC |
759 | sizeof(out), MLX5_REG_NODE_DESC, 0, 1); |
760 | if (err) | |
761 | return err; | |
762 | ||
763 | memcpy(ibdev->node_desc, props->node_desc, 64); | |
764 | ||
765 | return err; | |
766 | } | |
767 | ||
768 | static int mlx5_ib_modify_port(struct ib_device *ibdev, u8 port, int mask, | |
769 | struct ib_port_modify *props) | |
770 | { | |
771 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
772 | struct ib_port_attr attr; | |
773 | u32 tmp; | |
774 | int err; | |
775 | ||
776 | mutex_lock(&dev->cap_mask_mutex); | |
777 | ||
778 | err = mlx5_ib_query_port(ibdev, port, &attr); | |
779 | if (err) | |
780 | goto out; | |
781 | ||
782 | tmp = (attr.port_cap_flags | props->set_port_cap_mask) & | |
783 | ~props->clr_port_cap_mask; | |
784 | ||
9603b61d | 785 | err = mlx5_set_port_caps(dev->mdev, port, tmp); |
e126ba97 EC |
786 | |
787 | out: | |
788 | mutex_unlock(&dev->cap_mask_mutex); | |
789 | return err; | |
790 | } | |
791 | ||
792 | static struct ib_ucontext *mlx5_ib_alloc_ucontext(struct ib_device *ibdev, | |
793 | struct ib_udata *udata) | |
794 | { | |
795 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
78c0f98c | 796 | struct mlx5_ib_alloc_ucontext_req_v2 req; |
e126ba97 EC |
797 | struct mlx5_ib_alloc_ucontext_resp resp; |
798 | struct mlx5_ib_ucontext *context; | |
799 | struct mlx5_uuar_info *uuari; | |
800 | struct mlx5_uar *uars; | |
c1be5232 | 801 | int gross_uuars; |
e126ba97 | 802 | int num_uars; |
78c0f98c | 803 | int ver; |
e126ba97 EC |
804 | int uuarn; |
805 | int err; | |
806 | int i; | |
f241e749 | 807 | size_t reqlen; |
e126ba97 EC |
808 | |
809 | if (!dev->ib_active) | |
810 | return ERR_PTR(-EAGAIN); | |
811 | ||
78c0f98c EC |
812 | memset(&req, 0, sizeof(req)); |
813 | reqlen = udata->inlen - sizeof(struct ib_uverbs_cmd_hdr); | |
814 | if (reqlen == sizeof(struct mlx5_ib_alloc_ucontext_req)) | |
815 | ver = 0; | |
816 | else if (reqlen == sizeof(struct mlx5_ib_alloc_ucontext_req_v2)) | |
817 | ver = 2; | |
818 | else | |
819 | return ERR_PTR(-EINVAL); | |
820 | ||
821 | err = ib_copy_from_udata(&req, udata, reqlen); | |
e126ba97 EC |
822 | if (err) |
823 | return ERR_PTR(err); | |
824 | ||
78c0f98c EC |
825 | if (req.flags || req.reserved) |
826 | return ERR_PTR(-EINVAL); | |
827 | ||
e126ba97 EC |
828 | if (req.total_num_uuars > MLX5_MAX_UUARS) |
829 | return ERR_PTR(-ENOMEM); | |
830 | ||
831 | if (req.total_num_uuars == 0) | |
832 | return ERR_PTR(-EINVAL); | |
833 | ||
c1be5232 EC |
834 | req.total_num_uuars = ALIGN(req.total_num_uuars, |
835 | MLX5_NON_FP_BF_REGS_PER_PAGE); | |
e126ba97 EC |
836 | if (req.num_low_latency_uuars > req.total_num_uuars - 1) |
837 | return ERR_PTR(-EINVAL); | |
838 | ||
c1be5232 EC |
839 | num_uars = req.total_num_uuars / MLX5_NON_FP_BF_REGS_PER_PAGE; |
840 | gross_uuars = num_uars * MLX5_BF_REGS_PER_PAGE; | |
938fe83c SM |
841 | resp.qp_tab_size = 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp); |
842 | resp.bf_reg_size = 1 << MLX5_CAP_GEN(dev->mdev, log_bf_reg_size); | |
843 | resp.cache_line_size = L1_CACHE_BYTES; | |
844 | resp.max_sq_desc_sz = MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq); | |
845 | resp.max_rq_desc_sz = MLX5_CAP_GEN(dev->mdev, max_wqe_sz_rq); | |
846 | resp.max_send_wqebb = 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz); | |
847 | resp.max_recv_wr = 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz); | |
848 | resp.max_srq_recv_wr = 1 << MLX5_CAP_GEN(dev->mdev, log_max_srq_sz); | |
e126ba97 EC |
849 | |
850 | context = kzalloc(sizeof(*context), GFP_KERNEL); | |
851 | if (!context) | |
852 | return ERR_PTR(-ENOMEM); | |
853 | ||
854 | uuari = &context->uuari; | |
855 | mutex_init(&uuari->lock); | |
856 | uars = kcalloc(num_uars, sizeof(*uars), GFP_KERNEL); | |
857 | if (!uars) { | |
858 | err = -ENOMEM; | |
859 | goto out_ctx; | |
860 | } | |
861 | ||
c1be5232 | 862 | uuari->bitmap = kcalloc(BITS_TO_LONGS(gross_uuars), |
e126ba97 EC |
863 | sizeof(*uuari->bitmap), |
864 | GFP_KERNEL); | |
865 | if (!uuari->bitmap) { | |
866 | err = -ENOMEM; | |
867 | goto out_uar_ctx; | |
868 | } | |
869 | /* | |
870 | * clear all fast path uuars | |
871 | */ | |
c1be5232 | 872 | for (i = 0; i < gross_uuars; i++) { |
e126ba97 EC |
873 | uuarn = i & 3; |
874 | if (uuarn == 2 || uuarn == 3) | |
875 | set_bit(i, uuari->bitmap); | |
876 | } | |
877 | ||
c1be5232 | 878 | uuari->count = kcalloc(gross_uuars, sizeof(*uuari->count), GFP_KERNEL); |
e126ba97 EC |
879 | if (!uuari->count) { |
880 | err = -ENOMEM; | |
881 | goto out_bitmap; | |
882 | } | |
883 | ||
884 | for (i = 0; i < num_uars; i++) { | |
9603b61d | 885 | err = mlx5_cmd_alloc_uar(dev->mdev, &uars[i].index); |
e126ba97 EC |
886 | if (err) |
887 | goto out_count; | |
888 | } | |
889 | ||
b4cfe447 HE |
890 | #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING |
891 | context->ibucontext.invalidate_range = &mlx5_ib_invalidate_range; | |
892 | #endif | |
893 | ||
e126ba97 EC |
894 | INIT_LIST_HEAD(&context->db_page_list); |
895 | mutex_init(&context->db_page_mutex); | |
896 | ||
897 | resp.tot_uuars = req.total_num_uuars; | |
938fe83c | 898 | resp.num_ports = MLX5_CAP_GEN(dev->mdev, num_ports); |
92b0ca7c DC |
899 | err = ib_copy_to_udata(udata, &resp, |
900 | sizeof(resp) - sizeof(resp.reserved)); | |
e126ba97 EC |
901 | if (err) |
902 | goto out_uars; | |
903 | ||
78c0f98c | 904 | uuari->ver = ver; |
e126ba97 EC |
905 | uuari->num_low_latency_uuars = req.num_low_latency_uuars; |
906 | uuari->uars = uars; | |
907 | uuari->num_uars = num_uars; | |
908 | return &context->ibucontext; | |
909 | ||
910 | out_uars: | |
911 | for (i--; i >= 0; i--) | |
9603b61d | 912 | mlx5_cmd_free_uar(dev->mdev, uars[i].index); |
e126ba97 EC |
913 | out_count: |
914 | kfree(uuari->count); | |
915 | ||
916 | out_bitmap: | |
917 | kfree(uuari->bitmap); | |
918 | ||
919 | out_uar_ctx: | |
920 | kfree(uars); | |
921 | ||
922 | out_ctx: | |
923 | kfree(context); | |
924 | return ERR_PTR(err); | |
925 | } | |
926 | ||
927 | static int mlx5_ib_dealloc_ucontext(struct ib_ucontext *ibcontext) | |
928 | { | |
929 | struct mlx5_ib_ucontext *context = to_mucontext(ibcontext); | |
930 | struct mlx5_ib_dev *dev = to_mdev(ibcontext->device); | |
931 | struct mlx5_uuar_info *uuari = &context->uuari; | |
932 | int i; | |
933 | ||
934 | for (i = 0; i < uuari->num_uars; i++) { | |
9603b61d | 935 | if (mlx5_cmd_free_uar(dev->mdev, uuari->uars[i].index)) |
e126ba97 EC |
936 | mlx5_ib_warn(dev, "failed to free UAR 0x%x\n", uuari->uars[i].index); |
937 | } | |
938 | ||
939 | kfree(uuari->count); | |
940 | kfree(uuari->bitmap); | |
941 | kfree(uuari->uars); | |
942 | kfree(context); | |
943 | ||
944 | return 0; | |
945 | } | |
946 | ||
947 | static phys_addr_t uar_index2pfn(struct mlx5_ib_dev *dev, int index) | |
948 | { | |
9603b61d | 949 | return (pci_resource_start(dev->mdev->pdev, 0) >> PAGE_SHIFT) + index; |
e126ba97 EC |
950 | } |
951 | ||
952 | static int get_command(unsigned long offset) | |
953 | { | |
954 | return (offset >> MLX5_IB_MMAP_CMD_SHIFT) & MLX5_IB_MMAP_CMD_MASK; | |
955 | } | |
956 | ||
957 | static int get_arg(unsigned long offset) | |
958 | { | |
959 | return offset & ((1 << MLX5_IB_MMAP_CMD_SHIFT) - 1); | |
960 | } | |
961 | ||
962 | static int get_index(unsigned long offset) | |
963 | { | |
964 | return get_arg(offset); | |
965 | } | |
966 | ||
967 | static int mlx5_ib_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vma) | |
968 | { | |
969 | struct mlx5_ib_ucontext *context = to_mucontext(ibcontext); | |
970 | struct mlx5_ib_dev *dev = to_mdev(ibcontext->device); | |
971 | struct mlx5_uuar_info *uuari = &context->uuari; | |
972 | unsigned long command; | |
973 | unsigned long idx; | |
974 | phys_addr_t pfn; | |
975 | ||
976 | command = get_command(vma->vm_pgoff); | |
977 | switch (command) { | |
978 | case MLX5_IB_MMAP_REGULAR_PAGE: | |
979 | if (vma->vm_end - vma->vm_start != PAGE_SIZE) | |
980 | return -EINVAL; | |
981 | ||
982 | idx = get_index(vma->vm_pgoff); | |
1c3ce90d EC |
983 | if (idx >= uuari->num_uars) |
984 | return -EINVAL; | |
985 | ||
e126ba97 EC |
986 | pfn = uar_index2pfn(dev, uuari->uars[idx].index); |
987 | mlx5_ib_dbg(dev, "uar idx 0x%lx, pfn 0x%llx\n", idx, | |
988 | (unsigned long long)pfn); | |
989 | ||
e126ba97 EC |
990 | vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); |
991 | if (io_remap_pfn_range(vma, vma->vm_start, pfn, | |
992 | PAGE_SIZE, vma->vm_page_prot)) | |
993 | return -EAGAIN; | |
994 | ||
995 | mlx5_ib_dbg(dev, "mapped WC at 0x%lx, PA 0x%llx\n", | |
996 | vma->vm_start, | |
997 | (unsigned long long)pfn << PAGE_SHIFT); | |
998 | break; | |
999 | ||
1000 | case MLX5_IB_MMAP_GET_CONTIGUOUS_PAGES: | |
1001 | return -ENOSYS; | |
1002 | ||
1003 | default: | |
1004 | return -EINVAL; | |
1005 | } | |
1006 | ||
1007 | return 0; | |
1008 | } | |
1009 | ||
e126ba97 EC |
1010 | static struct ib_pd *mlx5_ib_alloc_pd(struct ib_device *ibdev, |
1011 | struct ib_ucontext *context, | |
1012 | struct ib_udata *udata) | |
1013 | { | |
1014 | struct mlx5_ib_alloc_pd_resp resp; | |
1015 | struct mlx5_ib_pd *pd; | |
1016 | int err; | |
1017 | ||
1018 | pd = kmalloc(sizeof(*pd), GFP_KERNEL); | |
1019 | if (!pd) | |
1020 | return ERR_PTR(-ENOMEM); | |
1021 | ||
9603b61d | 1022 | err = mlx5_core_alloc_pd(to_mdev(ibdev)->mdev, &pd->pdn); |
e126ba97 EC |
1023 | if (err) { |
1024 | kfree(pd); | |
1025 | return ERR_PTR(err); | |
1026 | } | |
1027 | ||
1028 | if (context) { | |
1029 | resp.pdn = pd->pdn; | |
1030 | if (ib_copy_to_udata(udata, &resp, sizeof(resp))) { | |
9603b61d | 1031 | mlx5_core_dealloc_pd(to_mdev(ibdev)->mdev, pd->pdn); |
e126ba97 EC |
1032 | kfree(pd); |
1033 | return ERR_PTR(-EFAULT); | |
1034 | } | |
e126ba97 EC |
1035 | } |
1036 | ||
1037 | return &pd->ibpd; | |
1038 | } | |
1039 | ||
1040 | static int mlx5_ib_dealloc_pd(struct ib_pd *pd) | |
1041 | { | |
1042 | struct mlx5_ib_dev *mdev = to_mdev(pd->device); | |
1043 | struct mlx5_ib_pd *mpd = to_mpd(pd); | |
1044 | ||
9603b61d | 1045 | mlx5_core_dealloc_pd(mdev->mdev, mpd->pdn); |
e126ba97 EC |
1046 | kfree(mpd); |
1047 | ||
1048 | return 0; | |
1049 | } | |
1050 | ||
1051 | static int mlx5_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
1052 | { | |
1053 | struct mlx5_ib_dev *dev = to_mdev(ibqp->device); | |
1054 | int err; | |
1055 | ||
9603b61d | 1056 | err = mlx5_core_attach_mcg(dev->mdev, gid, ibqp->qp_num); |
e126ba97 EC |
1057 | if (err) |
1058 | mlx5_ib_warn(dev, "failed attaching QPN 0x%x, MGID %pI6\n", | |
1059 | ibqp->qp_num, gid->raw); | |
1060 | ||
1061 | return err; | |
1062 | } | |
1063 | ||
1064 | static int mlx5_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
1065 | { | |
1066 | struct mlx5_ib_dev *dev = to_mdev(ibqp->device); | |
1067 | int err; | |
1068 | ||
9603b61d | 1069 | err = mlx5_core_detach_mcg(dev->mdev, gid, ibqp->qp_num); |
e126ba97 EC |
1070 | if (err) |
1071 | mlx5_ib_warn(dev, "failed detaching QPN 0x%x, MGID %pI6\n", | |
1072 | ibqp->qp_num, gid->raw); | |
1073 | ||
1074 | return err; | |
1075 | } | |
1076 | ||
1077 | static int init_node_data(struct mlx5_ib_dev *dev) | |
1078 | { | |
1b5daf11 | 1079 | int err; |
e126ba97 | 1080 | |
1b5daf11 | 1081 | err = mlx5_query_node_desc(dev, dev->ib_dev.node_desc); |
e126ba97 | 1082 | if (err) |
1b5daf11 | 1083 | return err; |
e126ba97 | 1084 | |
1b5daf11 | 1085 | dev->mdev->rev_id = dev->mdev->pdev->revision; |
e126ba97 | 1086 | |
1b5daf11 | 1087 | return mlx5_query_node_guid(dev, &dev->ib_dev.node_guid); |
e126ba97 EC |
1088 | } |
1089 | ||
1090 | static ssize_t show_fw_pages(struct device *device, struct device_attribute *attr, | |
1091 | char *buf) | |
1092 | { | |
1093 | struct mlx5_ib_dev *dev = | |
1094 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
1095 | ||
9603b61d | 1096 | return sprintf(buf, "%d\n", dev->mdev->priv.fw_pages); |
e126ba97 EC |
1097 | } |
1098 | ||
1099 | static ssize_t show_reg_pages(struct device *device, | |
1100 | struct device_attribute *attr, char *buf) | |
1101 | { | |
1102 | struct mlx5_ib_dev *dev = | |
1103 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
1104 | ||
6aec21f6 | 1105 | return sprintf(buf, "%d\n", atomic_read(&dev->mdev->priv.reg_pages)); |
e126ba97 EC |
1106 | } |
1107 | ||
1108 | static ssize_t show_hca(struct device *device, struct device_attribute *attr, | |
1109 | char *buf) | |
1110 | { | |
1111 | struct mlx5_ib_dev *dev = | |
1112 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
9603b61d | 1113 | return sprintf(buf, "MT%d\n", dev->mdev->pdev->device); |
e126ba97 EC |
1114 | } |
1115 | ||
1116 | static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr, | |
1117 | char *buf) | |
1118 | { | |
1119 | struct mlx5_ib_dev *dev = | |
1120 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
9603b61d JM |
1121 | return sprintf(buf, "%d.%d.%d\n", fw_rev_maj(dev->mdev), |
1122 | fw_rev_min(dev->mdev), fw_rev_sub(dev->mdev)); | |
e126ba97 EC |
1123 | } |
1124 | ||
1125 | static ssize_t show_rev(struct device *device, struct device_attribute *attr, | |
1126 | char *buf) | |
1127 | { | |
1128 | struct mlx5_ib_dev *dev = | |
1129 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
9603b61d | 1130 | return sprintf(buf, "%x\n", dev->mdev->rev_id); |
e126ba97 EC |
1131 | } |
1132 | ||
1133 | static ssize_t show_board(struct device *device, struct device_attribute *attr, | |
1134 | char *buf) | |
1135 | { | |
1136 | struct mlx5_ib_dev *dev = | |
1137 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
1138 | return sprintf(buf, "%.*s\n", MLX5_BOARD_ID_LEN, | |
9603b61d | 1139 | dev->mdev->board_id); |
e126ba97 EC |
1140 | } |
1141 | ||
1142 | static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); | |
1143 | static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); | |
1144 | static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); | |
1145 | static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); | |
1146 | static DEVICE_ATTR(fw_pages, S_IRUGO, show_fw_pages, NULL); | |
1147 | static DEVICE_ATTR(reg_pages, S_IRUGO, show_reg_pages, NULL); | |
1148 | ||
1149 | static struct device_attribute *mlx5_class_attributes[] = { | |
1150 | &dev_attr_hw_rev, | |
1151 | &dev_attr_fw_ver, | |
1152 | &dev_attr_hca_type, | |
1153 | &dev_attr_board_id, | |
1154 | &dev_attr_fw_pages, | |
1155 | &dev_attr_reg_pages, | |
1156 | }; | |
1157 | ||
9603b61d | 1158 | static void mlx5_ib_event(struct mlx5_core_dev *dev, void *context, |
4d2f9bbb | 1159 | enum mlx5_dev_event event, unsigned long param) |
e126ba97 | 1160 | { |
9603b61d | 1161 | struct mlx5_ib_dev *ibdev = (struct mlx5_ib_dev *)context; |
e126ba97 | 1162 | struct ib_event ibev; |
9603b61d | 1163 | |
e126ba97 EC |
1164 | u8 port = 0; |
1165 | ||
1166 | switch (event) { | |
1167 | case MLX5_DEV_EVENT_SYS_ERROR: | |
1168 | ibdev->ib_active = false; | |
1169 | ibev.event = IB_EVENT_DEVICE_FATAL; | |
1170 | break; | |
1171 | ||
1172 | case MLX5_DEV_EVENT_PORT_UP: | |
1173 | ibev.event = IB_EVENT_PORT_ACTIVE; | |
4d2f9bbb | 1174 | port = (u8)param; |
e126ba97 EC |
1175 | break; |
1176 | ||
1177 | case MLX5_DEV_EVENT_PORT_DOWN: | |
1178 | ibev.event = IB_EVENT_PORT_ERR; | |
4d2f9bbb | 1179 | port = (u8)param; |
e126ba97 EC |
1180 | break; |
1181 | ||
1182 | case MLX5_DEV_EVENT_PORT_INITIALIZED: | |
1183 | /* not used by ULPs */ | |
1184 | return; | |
1185 | ||
1186 | case MLX5_DEV_EVENT_LID_CHANGE: | |
1187 | ibev.event = IB_EVENT_LID_CHANGE; | |
4d2f9bbb | 1188 | port = (u8)param; |
e126ba97 EC |
1189 | break; |
1190 | ||
1191 | case MLX5_DEV_EVENT_PKEY_CHANGE: | |
1192 | ibev.event = IB_EVENT_PKEY_CHANGE; | |
4d2f9bbb | 1193 | port = (u8)param; |
e126ba97 EC |
1194 | break; |
1195 | ||
1196 | case MLX5_DEV_EVENT_GUID_CHANGE: | |
1197 | ibev.event = IB_EVENT_GID_CHANGE; | |
4d2f9bbb | 1198 | port = (u8)param; |
e126ba97 EC |
1199 | break; |
1200 | ||
1201 | case MLX5_DEV_EVENT_CLIENT_REREG: | |
1202 | ibev.event = IB_EVENT_CLIENT_REREGISTER; | |
4d2f9bbb | 1203 | port = (u8)param; |
e126ba97 EC |
1204 | break; |
1205 | } | |
1206 | ||
1207 | ibev.device = &ibdev->ib_dev; | |
1208 | ibev.element.port_num = port; | |
1209 | ||
a0c84c32 EC |
1210 | if (port < 1 || port > ibdev->num_ports) { |
1211 | mlx5_ib_warn(ibdev, "warning: event on port %d\n", port); | |
1212 | return; | |
1213 | } | |
1214 | ||
e126ba97 EC |
1215 | if (ibdev->ib_active) |
1216 | ib_dispatch_event(&ibev); | |
1217 | } | |
1218 | ||
1219 | static void get_ext_port_caps(struct mlx5_ib_dev *dev) | |
1220 | { | |
1221 | int port; | |
1222 | ||
938fe83c | 1223 | for (port = 1; port <= MLX5_CAP_GEN(dev->mdev, num_ports); port++) |
e126ba97 EC |
1224 | mlx5_query_ext_port_caps(dev, port); |
1225 | } | |
1226 | ||
1227 | static int get_port_caps(struct mlx5_ib_dev *dev) | |
1228 | { | |
1229 | struct ib_device_attr *dprops = NULL; | |
1230 | struct ib_port_attr *pprops = NULL; | |
f614fc15 | 1231 | int err = -ENOMEM; |
e126ba97 | 1232 | int port; |
2528e33e | 1233 | struct ib_udata uhw = {.inlen = 0, .outlen = 0}; |
e126ba97 EC |
1234 | |
1235 | pprops = kmalloc(sizeof(*pprops), GFP_KERNEL); | |
1236 | if (!pprops) | |
1237 | goto out; | |
1238 | ||
1239 | dprops = kmalloc(sizeof(*dprops), GFP_KERNEL); | |
1240 | if (!dprops) | |
1241 | goto out; | |
1242 | ||
2528e33e | 1243 | err = mlx5_ib_query_device(&dev->ib_dev, dprops, &uhw); |
e126ba97 EC |
1244 | if (err) { |
1245 | mlx5_ib_warn(dev, "query_device failed %d\n", err); | |
1246 | goto out; | |
1247 | } | |
1248 | ||
938fe83c | 1249 | for (port = 1; port <= MLX5_CAP_GEN(dev->mdev, num_ports); port++) { |
e126ba97 EC |
1250 | err = mlx5_ib_query_port(&dev->ib_dev, port, pprops); |
1251 | if (err) { | |
938fe83c SM |
1252 | mlx5_ib_warn(dev, "query_port %d failed %d\n", |
1253 | port, err); | |
e126ba97 EC |
1254 | break; |
1255 | } | |
938fe83c SM |
1256 | dev->mdev->port_caps[port - 1].pkey_table_len = |
1257 | dprops->max_pkeys; | |
1258 | dev->mdev->port_caps[port - 1].gid_table_len = | |
1259 | pprops->gid_tbl_len; | |
e126ba97 EC |
1260 | mlx5_ib_dbg(dev, "pkey_table_len %d, gid_table_len %d\n", |
1261 | dprops->max_pkeys, pprops->gid_tbl_len); | |
1262 | } | |
1263 | ||
1264 | out: | |
1265 | kfree(pprops); | |
1266 | kfree(dprops); | |
1267 | ||
1268 | return err; | |
1269 | } | |
1270 | ||
1271 | static void destroy_umrc_res(struct mlx5_ib_dev *dev) | |
1272 | { | |
1273 | int err; | |
1274 | ||
1275 | err = mlx5_mr_cache_cleanup(dev); | |
1276 | if (err) | |
1277 | mlx5_ib_warn(dev, "mr cache cleanup failed\n"); | |
1278 | ||
1279 | mlx5_ib_destroy_qp(dev->umrc.qp); | |
1280 | ib_destroy_cq(dev->umrc.cq); | |
e126ba97 EC |
1281 | ib_dealloc_pd(dev->umrc.pd); |
1282 | } | |
1283 | ||
1284 | enum { | |
1285 | MAX_UMR_WR = 128, | |
1286 | }; | |
1287 | ||
1288 | static int create_umr_res(struct mlx5_ib_dev *dev) | |
1289 | { | |
1290 | struct ib_qp_init_attr *init_attr = NULL; | |
1291 | struct ib_qp_attr *attr = NULL; | |
1292 | struct ib_pd *pd; | |
1293 | struct ib_cq *cq; | |
1294 | struct ib_qp *qp; | |
8e37210b | 1295 | struct ib_cq_init_attr cq_attr = {}; |
e126ba97 EC |
1296 | int ret; |
1297 | ||
1298 | attr = kzalloc(sizeof(*attr), GFP_KERNEL); | |
1299 | init_attr = kzalloc(sizeof(*init_attr), GFP_KERNEL); | |
1300 | if (!attr || !init_attr) { | |
1301 | ret = -ENOMEM; | |
1302 | goto error_0; | |
1303 | } | |
1304 | ||
1305 | pd = ib_alloc_pd(&dev->ib_dev); | |
1306 | if (IS_ERR(pd)) { | |
1307 | mlx5_ib_dbg(dev, "Couldn't create PD for sync UMR QP\n"); | |
1308 | ret = PTR_ERR(pd); | |
1309 | goto error_0; | |
1310 | } | |
1311 | ||
8e37210b MB |
1312 | cq_attr.cqe = 128; |
1313 | cq = ib_create_cq(&dev->ib_dev, mlx5_umr_cq_handler, NULL, NULL, | |
1314 | &cq_attr); | |
e126ba97 EC |
1315 | if (IS_ERR(cq)) { |
1316 | mlx5_ib_dbg(dev, "Couldn't create CQ for sync UMR QP\n"); | |
1317 | ret = PTR_ERR(cq); | |
1318 | goto error_2; | |
1319 | } | |
1320 | ib_req_notify_cq(cq, IB_CQ_NEXT_COMP); | |
1321 | ||
1322 | init_attr->send_cq = cq; | |
1323 | init_attr->recv_cq = cq; | |
1324 | init_attr->sq_sig_type = IB_SIGNAL_ALL_WR; | |
1325 | init_attr->cap.max_send_wr = MAX_UMR_WR; | |
1326 | init_attr->cap.max_send_sge = 1; | |
1327 | init_attr->qp_type = MLX5_IB_QPT_REG_UMR; | |
1328 | init_attr->port_num = 1; | |
1329 | qp = mlx5_ib_create_qp(pd, init_attr, NULL); | |
1330 | if (IS_ERR(qp)) { | |
1331 | mlx5_ib_dbg(dev, "Couldn't create sync UMR QP\n"); | |
1332 | ret = PTR_ERR(qp); | |
1333 | goto error_3; | |
1334 | } | |
1335 | qp->device = &dev->ib_dev; | |
1336 | qp->real_qp = qp; | |
1337 | qp->uobject = NULL; | |
1338 | qp->qp_type = MLX5_IB_QPT_REG_UMR; | |
1339 | ||
1340 | attr->qp_state = IB_QPS_INIT; | |
1341 | attr->port_num = 1; | |
1342 | ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE | IB_QP_PKEY_INDEX | | |
1343 | IB_QP_PORT, NULL); | |
1344 | if (ret) { | |
1345 | mlx5_ib_dbg(dev, "Couldn't modify UMR QP\n"); | |
1346 | goto error_4; | |
1347 | } | |
1348 | ||
1349 | memset(attr, 0, sizeof(*attr)); | |
1350 | attr->qp_state = IB_QPS_RTR; | |
1351 | attr->path_mtu = IB_MTU_256; | |
1352 | ||
1353 | ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE, NULL); | |
1354 | if (ret) { | |
1355 | mlx5_ib_dbg(dev, "Couldn't modify umr QP to rtr\n"); | |
1356 | goto error_4; | |
1357 | } | |
1358 | ||
1359 | memset(attr, 0, sizeof(*attr)); | |
1360 | attr->qp_state = IB_QPS_RTS; | |
1361 | ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE, NULL); | |
1362 | if (ret) { | |
1363 | mlx5_ib_dbg(dev, "Couldn't modify umr QP to rts\n"); | |
1364 | goto error_4; | |
1365 | } | |
1366 | ||
1367 | dev->umrc.qp = qp; | |
1368 | dev->umrc.cq = cq; | |
e126ba97 EC |
1369 | dev->umrc.pd = pd; |
1370 | ||
1371 | sema_init(&dev->umrc.sem, MAX_UMR_WR); | |
1372 | ret = mlx5_mr_cache_init(dev); | |
1373 | if (ret) { | |
1374 | mlx5_ib_warn(dev, "mr cache init failed %d\n", ret); | |
1375 | goto error_4; | |
1376 | } | |
1377 | ||
1378 | kfree(attr); | |
1379 | kfree(init_attr); | |
1380 | ||
1381 | return 0; | |
1382 | ||
1383 | error_4: | |
1384 | mlx5_ib_destroy_qp(qp); | |
1385 | ||
1386 | error_3: | |
1387 | ib_destroy_cq(cq); | |
1388 | ||
1389 | error_2: | |
e126ba97 EC |
1390 | ib_dealloc_pd(pd); |
1391 | ||
1392 | error_0: | |
1393 | kfree(attr); | |
1394 | kfree(init_attr); | |
1395 | return ret; | |
1396 | } | |
1397 | ||
1398 | static int create_dev_resources(struct mlx5_ib_resources *devr) | |
1399 | { | |
1400 | struct ib_srq_init_attr attr; | |
1401 | struct mlx5_ib_dev *dev; | |
bcf4c1ea | 1402 | struct ib_cq_init_attr cq_attr = {.cqe = 1}; |
e126ba97 EC |
1403 | int ret = 0; |
1404 | ||
1405 | dev = container_of(devr, struct mlx5_ib_dev, devr); | |
1406 | ||
1407 | devr->p0 = mlx5_ib_alloc_pd(&dev->ib_dev, NULL, NULL); | |
1408 | if (IS_ERR(devr->p0)) { | |
1409 | ret = PTR_ERR(devr->p0); | |
1410 | goto error0; | |
1411 | } | |
1412 | devr->p0->device = &dev->ib_dev; | |
1413 | devr->p0->uobject = NULL; | |
1414 | atomic_set(&devr->p0->usecnt, 0); | |
1415 | ||
bcf4c1ea | 1416 | devr->c0 = mlx5_ib_create_cq(&dev->ib_dev, &cq_attr, NULL, NULL); |
e126ba97 EC |
1417 | if (IS_ERR(devr->c0)) { |
1418 | ret = PTR_ERR(devr->c0); | |
1419 | goto error1; | |
1420 | } | |
1421 | devr->c0->device = &dev->ib_dev; | |
1422 | devr->c0->uobject = NULL; | |
1423 | devr->c0->comp_handler = NULL; | |
1424 | devr->c0->event_handler = NULL; | |
1425 | devr->c0->cq_context = NULL; | |
1426 | atomic_set(&devr->c0->usecnt, 0); | |
1427 | ||
1428 | devr->x0 = mlx5_ib_alloc_xrcd(&dev->ib_dev, NULL, NULL); | |
1429 | if (IS_ERR(devr->x0)) { | |
1430 | ret = PTR_ERR(devr->x0); | |
1431 | goto error2; | |
1432 | } | |
1433 | devr->x0->device = &dev->ib_dev; | |
1434 | devr->x0->inode = NULL; | |
1435 | atomic_set(&devr->x0->usecnt, 0); | |
1436 | mutex_init(&devr->x0->tgt_qp_mutex); | |
1437 | INIT_LIST_HEAD(&devr->x0->tgt_qp_list); | |
1438 | ||
1439 | devr->x1 = mlx5_ib_alloc_xrcd(&dev->ib_dev, NULL, NULL); | |
1440 | if (IS_ERR(devr->x1)) { | |
1441 | ret = PTR_ERR(devr->x1); | |
1442 | goto error3; | |
1443 | } | |
1444 | devr->x1->device = &dev->ib_dev; | |
1445 | devr->x1->inode = NULL; | |
1446 | atomic_set(&devr->x1->usecnt, 0); | |
1447 | mutex_init(&devr->x1->tgt_qp_mutex); | |
1448 | INIT_LIST_HEAD(&devr->x1->tgt_qp_list); | |
1449 | ||
1450 | memset(&attr, 0, sizeof(attr)); | |
1451 | attr.attr.max_sge = 1; | |
1452 | attr.attr.max_wr = 1; | |
1453 | attr.srq_type = IB_SRQT_XRC; | |
1454 | attr.ext.xrc.cq = devr->c0; | |
1455 | attr.ext.xrc.xrcd = devr->x0; | |
1456 | ||
1457 | devr->s0 = mlx5_ib_create_srq(devr->p0, &attr, NULL); | |
1458 | if (IS_ERR(devr->s0)) { | |
1459 | ret = PTR_ERR(devr->s0); | |
1460 | goto error4; | |
1461 | } | |
1462 | devr->s0->device = &dev->ib_dev; | |
1463 | devr->s0->pd = devr->p0; | |
1464 | devr->s0->uobject = NULL; | |
1465 | devr->s0->event_handler = NULL; | |
1466 | devr->s0->srq_context = NULL; | |
1467 | devr->s0->srq_type = IB_SRQT_XRC; | |
1468 | devr->s0->ext.xrc.xrcd = devr->x0; | |
1469 | devr->s0->ext.xrc.cq = devr->c0; | |
1470 | atomic_inc(&devr->s0->ext.xrc.xrcd->usecnt); | |
1471 | atomic_inc(&devr->s0->ext.xrc.cq->usecnt); | |
1472 | atomic_inc(&devr->p0->usecnt); | |
1473 | atomic_set(&devr->s0->usecnt, 0); | |
1474 | ||
4aa17b28 HA |
1475 | memset(&attr, 0, sizeof(attr)); |
1476 | attr.attr.max_sge = 1; | |
1477 | attr.attr.max_wr = 1; | |
1478 | attr.srq_type = IB_SRQT_BASIC; | |
1479 | devr->s1 = mlx5_ib_create_srq(devr->p0, &attr, NULL); | |
1480 | if (IS_ERR(devr->s1)) { | |
1481 | ret = PTR_ERR(devr->s1); | |
1482 | goto error5; | |
1483 | } | |
1484 | devr->s1->device = &dev->ib_dev; | |
1485 | devr->s1->pd = devr->p0; | |
1486 | devr->s1->uobject = NULL; | |
1487 | devr->s1->event_handler = NULL; | |
1488 | devr->s1->srq_context = NULL; | |
1489 | devr->s1->srq_type = IB_SRQT_BASIC; | |
1490 | devr->s1->ext.xrc.cq = devr->c0; | |
1491 | atomic_inc(&devr->p0->usecnt); | |
1492 | atomic_set(&devr->s0->usecnt, 0); | |
1493 | ||
e126ba97 EC |
1494 | return 0; |
1495 | ||
4aa17b28 HA |
1496 | error5: |
1497 | mlx5_ib_destroy_srq(devr->s0); | |
e126ba97 EC |
1498 | error4: |
1499 | mlx5_ib_dealloc_xrcd(devr->x1); | |
1500 | error3: | |
1501 | mlx5_ib_dealloc_xrcd(devr->x0); | |
1502 | error2: | |
1503 | mlx5_ib_destroy_cq(devr->c0); | |
1504 | error1: | |
1505 | mlx5_ib_dealloc_pd(devr->p0); | |
1506 | error0: | |
1507 | return ret; | |
1508 | } | |
1509 | ||
1510 | static void destroy_dev_resources(struct mlx5_ib_resources *devr) | |
1511 | { | |
4aa17b28 | 1512 | mlx5_ib_destroy_srq(devr->s1); |
e126ba97 EC |
1513 | mlx5_ib_destroy_srq(devr->s0); |
1514 | mlx5_ib_dealloc_xrcd(devr->x0); | |
1515 | mlx5_ib_dealloc_xrcd(devr->x1); | |
1516 | mlx5_ib_destroy_cq(devr->c0); | |
1517 | mlx5_ib_dealloc_pd(devr->p0); | |
1518 | } | |
1519 | ||
7738613e IW |
1520 | static int mlx5_port_immutable(struct ib_device *ibdev, u8 port_num, |
1521 | struct ib_port_immutable *immutable) | |
1522 | { | |
1523 | struct ib_port_attr attr; | |
1524 | int err; | |
1525 | ||
1526 | err = mlx5_ib_query_port(ibdev, port_num, &attr); | |
1527 | if (err) | |
1528 | return err; | |
1529 | ||
1530 | immutable->pkey_tbl_len = attr.pkey_tbl_len; | |
1531 | immutable->gid_tbl_len = attr.gid_tbl_len; | |
f9b22e35 | 1532 | immutable->core_cap_flags = RDMA_CORE_PORT_IBA_IB; |
337877a4 | 1533 | immutable->max_mad_size = IB_MGMT_MAD_SIZE; |
7738613e IW |
1534 | |
1535 | return 0; | |
1536 | } | |
1537 | ||
fc24fc5e AS |
1538 | static int mlx5_enable_roce(struct mlx5_ib_dev *dev) |
1539 | { | |
1540 | dev->roce.nb.notifier_call = mlx5_netdev_event; | |
1541 | return register_netdevice_notifier(&dev->roce.nb); | |
1542 | } | |
1543 | ||
1544 | static void mlx5_disable_roce(struct mlx5_ib_dev *dev) | |
1545 | { | |
1546 | unregister_netdevice_notifier(&dev->roce.nb); | |
1547 | } | |
1548 | ||
9603b61d | 1549 | static void *mlx5_ib_add(struct mlx5_core_dev *mdev) |
e126ba97 | 1550 | { |
e126ba97 | 1551 | struct mlx5_ib_dev *dev; |
ebd61f68 AS |
1552 | enum rdma_link_layer ll; |
1553 | int port_type_cap; | |
e126ba97 EC |
1554 | int err; |
1555 | int i; | |
1556 | ||
ebd61f68 AS |
1557 | port_type_cap = MLX5_CAP_GEN(mdev, port_type); |
1558 | ll = mlx5_port_type_cap_to_rdma_ll(port_type_cap); | |
1559 | ||
647241ea | 1560 | /* don't create IB instance over Eth ports, no RoCE yet! */ |
ebd61f68 | 1561 | if (ll == IB_LINK_LAYER_ETHERNET) |
647241ea MD |
1562 | return NULL; |
1563 | ||
e126ba97 EC |
1564 | printk_once(KERN_INFO "%s", mlx5_version); |
1565 | ||
1566 | dev = (struct mlx5_ib_dev *)ib_alloc_device(sizeof(*dev)); | |
1567 | if (!dev) | |
9603b61d | 1568 | return NULL; |
e126ba97 | 1569 | |
9603b61d | 1570 | dev->mdev = mdev; |
e126ba97 | 1571 | |
fc24fc5e | 1572 | rwlock_init(&dev->roce.netdev_lock); |
e126ba97 EC |
1573 | err = get_port_caps(dev); |
1574 | if (err) | |
9603b61d | 1575 | goto err_dealloc; |
e126ba97 | 1576 | |
1b5daf11 MD |
1577 | if (mlx5_use_mad_ifc(dev)) |
1578 | get_ext_port_caps(dev); | |
e126ba97 | 1579 | |
e126ba97 EC |
1580 | MLX5_INIT_DOORBELL_LOCK(&dev->uar_lock); |
1581 | ||
1582 | strlcpy(dev->ib_dev.name, "mlx5_%d", IB_DEVICE_NAME_MAX); | |
1583 | dev->ib_dev.owner = THIS_MODULE; | |
1584 | dev->ib_dev.node_type = RDMA_NODE_IB_CA; | |
c6790aa9 | 1585 | dev->ib_dev.local_dma_lkey = 0 /* not supported for now */; |
938fe83c | 1586 | dev->num_ports = MLX5_CAP_GEN(mdev, num_ports); |
e126ba97 | 1587 | dev->ib_dev.phys_port_cnt = dev->num_ports; |
233d05d2 SM |
1588 | dev->ib_dev.num_comp_vectors = |
1589 | dev->mdev->priv.eq_table.num_comp_vectors; | |
e126ba97 EC |
1590 | dev->ib_dev.dma_device = &mdev->pdev->dev; |
1591 | ||
1592 | dev->ib_dev.uverbs_abi_ver = MLX5_IB_UVERBS_ABI_VERSION; | |
1593 | dev->ib_dev.uverbs_cmd_mask = | |
1594 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
1595 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
1596 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
1597 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
1598 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
1599 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
1600 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
1601 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
1602 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
1603 | (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | | |
1604 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | | |
1605 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
1606 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
1607 | (1ull << IB_USER_VERBS_CMD_QUERY_QP) | | |
1608 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | |
1609 | (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | | |
1610 | (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) | | |
1611 | (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | | |
1612 | (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | | |
1613 | (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | | |
1614 | (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) | | |
1615 | (1ull << IB_USER_VERBS_CMD_CREATE_XSRQ) | | |
1616 | (1ull << IB_USER_VERBS_CMD_OPEN_QP); | |
1707cb4a HE |
1617 | dev->ib_dev.uverbs_ex_cmd_mask = |
1618 | (1ull << IB_USER_VERBS_EX_CMD_QUERY_DEVICE); | |
e126ba97 EC |
1619 | |
1620 | dev->ib_dev.query_device = mlx5_ib_query_device; | |
1621 | dev->ib_dev.query_port = mlx5_ib_query_port; | |
ebd61f68 | 1622 | dev->ib_dev.get_link_layer = mlx5_ib_port_link_layer; |
fc24fc5e AS |
1623 | if (ll == IB_LINK_LAYER_ETHERNET) |
1624 | dev->ib_dev.get_netdev = mlx5_ib_get_netdev; | |
e126ba97 | 1625 | dev->ib_dev.query_gid = mlx5_ib_query_gid; |
3cca2606 AS |
1626 | dev->ib_dev.add_gid = mlx5_ib_add_gid; |
1627 | dev->ib_dev.del_gid = mlx5_ib_del_gid; | |
e126ba97 EC |
1628 | dev->ib_dev.query_pkey = mlx5_ib_query_pkey; |
1629 | dev->ib_dev.modify_device = mlx5_ib_modify_device; | |
1630 | dev->ib_dev.modify_port = mlx5_ib_modify_port; | |
1631 | dev->ib_dev.alloc_ucontext = mlx5_ib_alloc_ucontext; | |
1632 | dev->ib_dev.dealloc_ucontext = mlx5_ib_dealloc_ucontext; | |
1633 | dev->ib_dev.mmap = mlx5_ib_mmap; | |
1634 | dev->ib_dev.alloc_pd = mlx5_ib_alloc_pd; | |
1635 | dev->ib_dev.dealloc_pd = mlx5_ib_dealloc_pd; | |
1636 | dev->ib_dev.create_ah = mlx5_ib_create_ah; | |
1637 | dev->ib_dev.query_ah = mlx5_ib_query_ah; | |
1638 | dev->ib_dev.destroy_ah = mlx5_ib_destroy_ah; | |
1639 | dev->ib_dev.create_srq = mlx5_ib_create_srq; | |
1640 | dev->ib_dev.modify_srq = mlx5_ib_modify_srq; | |
1641 | dev->ib_dev.query_srq = mlx5_ib_query_srq; | |
1642 | dev->ib_dev.destroy_srq = mlx5_ib_destroy_srq; | |
1643 | dev->ib_dev.post_srq_recv = mlx5_ib_post_srq_recv; | |
1644 | dev->ib_dev.create_qp = mlx5_ib_create_qp; | |
1645 | dev->ib_dev.modify_qp = mlx5_ib_modify_qp; | |
1646 | dev->ib_dev.query_qp = mlx5_ib_query_qp; | |
1647 | dev->ib_dev.destroy_qp = mlx5_ib_destroy_qp; | |
1648 | dev->ib_dev.post_send = mlx5_ib_post_send; | |
1649 | dev->ib_dev.post_recv = mlx5_ib_post_recv; | |
1650 | dev->ib_dev.create_cq = mlx5_ib_create_cq; | |
1651 | dev->ib_dev.modify_cq = mlx5_ib_modify_cq; | |
1652 | dev->ib_dev.resize_cq = mlx5_ib_resize_cq; | |
1653 | dev->ib_dev.destroy_cq = mlx5_ib_destroy_cq; | |
1654 | dev->ib_dev.poll_cq = mlx5_ib_poll_cq; | |
1655 | dev->ib_dev.req_notify_cq = mlx5_ib_arm_cq; | |
1656 | dev->ib_dev.get_dma_mr = mlx5_ib_get_dma_mr; | |
1657 | dev->ib_dev.reg_user_mr = mlx5_ib_reg_user_mr; | |
1658 | dev->ib_dev.dereg_mr = mlx5_ib_dereg_mr; | |
1659 | dev->ib_dev.attach_mcast = mlx5_ib_mcg_attach; | |
1660 | dev->ib_dev.detach_mcast = mlx5_ib_mcg_detach; | |
1661 | dev->ib_dev.process_mad = mlx5_ib_process_mad; | |
9bee178b | 1662 | dev->ib_dev.alloc_mr = mlx5_ib_alloc_mr; |
8a187ee5 | 1663 | dev->ib_dev.map_mr_sg = mlx5_ib_map_mr_sg; |
d5436ba0 | 1664 | dev->ib_dev.check_mr_status = mlx5_ib_check_mr_status; |
7738613e | 1665 | dev->ib_dev.get_port_immutable = mlx5_port_immutable; |
e126ba97 | 1666 | |
938fe83c | 1667 | mlx5_ib_internal_fill_odp_caps(dev); |
8cdd312c | 1668 | |
938fe83c | 1669 | if (MLX5_CAP_GEN(mdev, xrc)) { |
e126ba97 EC |
1670 | dev->ib_dev.alloc_xrcd = mlx5_ib_alloc_xrcd; |
1671 | dev->ib_dev.dealloc_xrcd = mlx5_ib_dealloc_xrcd; | |
1672 | dev->ib_dev.uverbs_cmd_mask |= | |
1673 | (1ull << IB_USER_VERBS_CMD_OPEN_XRCD) | | |
1674 | (1ull << IB_USER_VERBS_CMD_CLOSE_XRCD); | |
1675 | } | |
1676 | ||
1677 | err = init_node_data(dev); | |
1678 | if (err) | |
233d05d2 | 1679 | goto err_dealloc; |
e126ba97 EC |
1680 | |
1681 | mutex_init(&dev->cap_mask_mutex); | |
e126ba97 | 1682 | |
fc24fc5e AS |
1683 | if (ll == IB_LINK_LAYER_ETHERNET) { |
1684 | err = mlx5_enable_roce(dev); | |
1685 | if (err) | |
1686 | goto err_dealloc; | |
1687 | } | |
1688 | ||
e126ba97 EC |
1689 | err = create_dev_resources(&dev->devr); |
1690 | if (err) | |
fc24fc5e | 1691 | goto err_disable_roce; |
e126ba97 | 1692 | |
6aec21f6 | 1693 | err = mlx5_ib_odp_init_one(dev); |
281d1a92 | 1694 | if (err) |
e126ba97 EC |
1695 | goto err_rsrc; |
1696 | ||
6aec21f6 HE |
1697 | err = ib_register_device(&dev->ib_dev, NULL); |
1698 | if (err) | |
1699 | goto err_odp; | |
1700 | ||
e126ba97 EC |
1701 | err = create_umr_res(dev); |
1702 | if (err) | |
1703 | goto err_dev; | |
1704 | ||
1705 | for (i = 0; i < ARRAY_SIZE(mlx5_class_attributes); i++) { | |
281d1a92 WY |
1706 | err = device_create_file(&dev->ib_dev.dev, |
1707 | mlx5_class_attributes[i]); | |
1708 | if (err) | |
e126ba97 EC |
1709 | goto err_umrc; |
1710 | } | |
1711 | ||
1712 | dev->ib_active = true; | |
1713 | ||
9603b61d | 1714 | return dev; |
e126ba97 EC |
1715 | |
1716 | err_umrc: | |
1717 | destroy_umrc_res(dev); | |
1718 | ||
1719 | err_dev: | |
1720 | ib_unregister_device(&dev->ib_dev); | |
1721 | ||
6aec21f6 HE |
1722 | err_odp: |
1723 | mlx5_ib_odp_remove_one(dev); | |
1724 | ||
e126ba97 EC |
1725 | err_rsrc: |
1726 | destroy_dev_resources(&dev->devr); | |
1727 | ||
fc24fc5e AS |
1728 | err_disable_roce: |
1729 | if (ll == IB_LINK_LAYER_ETHERNET) | |
1730 | mlx5_disable_roce(dev); | |
1731 | ||
9603b61d | 1732 | err_dealloc: |
e126ba97 EC |
1733 | ib_dealloc_device((struct ib_device *)dev); |
1734 | ||
9603b61d | 1735 | return NULL; |
e126ba97 EC |
1736 | } |
1737 | ||
9603b61d | 1738 | static void mlx5_ib_remove(struct mlx5_core_dev *mdev, void *context) |
e126ba97 | 1739 | { |
9603b61d | 1740 | struct mlx5_ib_dev *dev = context; |
fc24fc5e | 1741 | enum rdma_link_layer ll = mlx5_ib_port_link_layer(&dev->ib_dev, 1); |
6aec21f6 | 1742 | |
e126ba97 | 1743 | ib_unregister_device(&dev->ib_dev); |
eefd56e5 | 1744 | destroy_umrc_res(dev); |
6aec21f6 | 1745 | mlx5_ib_odp_remove_one(dev); |
e126ba97 | 1746 | destroy_dev_resources(&dev->devr); |
fc24fc5e AS |
1747 | if (ll == IB_LINK_LAYER_ETHERNET) |
1748 | mlx5_disable_roce(dev); | |
e126ba97 EC |
1749 | ib_dealloc_device(&dev->ib_dev); |
1750 | } | |
1751 | ||
9603b61d JM |
1752 | static struct mlx5_interface mlx5_ib_interface = { |
1753 | .add = mlx5_ib_add, | |
1754 | .remove = mlx5_ib_remove, | |
1755 | .event = mlx5_ib_event, | |
64613d94 | 1756 | .protocol = MLX5_INTERFACE_PROTOCOL_IB, |
e126ba97 EC |
1757 | }; |
1758 | ||
1759 | static int __init mlx5_ib_init(void) | |
1760 | { | |
6aec21f6 HE |
1761 | int err; |
1762 | ||
9603b61d JM |
1763 | if (deprecated_prof_sel != 2) |
1764 | pr_warn("prof_sel is deprecated for mlx5_ib, set it for mlx5_core\n"); | |
1765 | ||
6aec21f6 HE |
1766 | err = mlx5_ib_odp_init(); |
1767 | if (err) | |
1768 | return err; | |
1769 | ||
1770 | err = mlx5_register_interface(&mlx5_ib_interface); | |
1771 | if (err) | |
1772 | goto clean_odp; | |
1773 | ||
1774 | return err; | |
1775 | ||
1776 | clean_odp: | |
1777 | mlx5_ib_odp_cleanup(); | |
1778 | return err; | |
e126ba97 EC |
1779 | } |
1780 | ||
1781 | static void __exit mlx5_ib_cleanup(void) | |
1782 | { | |
9603b61d | 1783 | mlx5_unregister_interface(&mlx5_ib_interface); |
6aec21f6 | 1784 | mlx5_ib_odp_cleanup(); |
e126ba97 EC |
1785 | } |
1786 | ||
1787 | module_init(mlx5_ib_init); | |
1788 | module_exit(mlx5_ib_cleanup); |