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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> | |
37aa5c36 GL |
40 | #if defined(CONFIG_X86) |
41 | #include <asm/pat.h> | |
42 | #endif | |
e126ba97 | 43 | #include <linux/sched.h> |
7c2344c3 | 44 | #include <linux/delay.h> |
e126ba97 | 45 | #include <rdma/ib_user_verbs.h> |
3f89a643 | 46 | #include <rdma/ib_addr.h> |
2811ba51 | 47 | #include <rdma/ib_cache.h> |
ada68c31 | 48 | #include <linux/mlx5/port.h> |
1b5daf11 | 49 | #include <linux/mlx5/vport.h> |
7c2344c3 | 50 | #include <linux/list.h> |
e126ba97 EC |
51 | #include <rdma/ib_smi.h> |
52 | #include <rdma/ib_umem.h> | |
038d2ef8 MG |
53 | #include <linux/in.h> |
54 | #include <linux/etherdevice.h> | |
55 | #include <linux/mlx5/fs.h> | |
e126ba97 EC |
56 | #include "mlx5_ib.h" |
57 | ||
58 | #define DRIVER_NAME "mlx5_ib" | |
169a1d85 AV |
59 | #define DRIVER_VERSION "2.2-1" |
60 | #define DRIVER_RELDATE "Feb 2014" | |
e126ba97 EC |
61 | |
62 | MODULE_AUTHOR("Eli Cohen <eli@mellanox.com>"); | |
63 | MODULE_DESCRIPTION("Mellanox Connect-IB HCA IB driver"); | |
64 | MODULE_LICENSE("Dual BSD/GPL"); | |
65 | MODULE_VERSION(DRIVER_VERSION); | |
66 | ||
9603b61d JM |
67 | static int deprecated_prof_sel = 2; |
68 | module_param_named(prof_sel, deprecated_prof_sel, int, 0444); | |
69 | MODULE_PARM_DESC(prof_sel, "profile selector. Deprecated here. Moved to module mlx5_core"); | |
e126ba97 EC |
70 | |
71 | static char mlx5_version[] = | |
72 | DRIVER_NAME ": Mellanox Connect-IB Infiniband driver v" | |
73 | DRIVER_VERSION " (" DRIVER_RELDATE ")\n"; | |
74 | ||
da7525d2 EBE |
75 | enum { |
76 | MLX5_ATOMIC_SIZE_QP_8BYTES = 1 << 3, | |
77 | }; | |
78 | ||
1b5daf11 | 79 | static enum rdma_link_layer |
ebd61f68 | 80 | mlx5_port_type_cap_to_rdma_ll(int port_type_cap) |
1b5daf11 | 81 | { |
ebd61f68 | 82 | switch (port_type_cap) { |
1b5daf11 MD |
83 | case MLX5_CAP_PORT_TYPE_IB: |
84 | return IB_LINK_LAYER_INFINIBAND; | |
85 | case MLX5_CAP_PORT_TYPE_ETH: | |
86 | return IB_LINK_LAYER_ETHERNET; | |
87 | default: | |
88 | return IB_LINK_LAYER_UNSPECIFIED; | |
89 | } | |
90 | } | |
91 | ||
ebd61f68 AS |
92 | static enum rdma_link_layer |
93 | mlx5_ib_port_link_layer(struct ib_device *device, u8 port_num) | |
94 | { | |
95 | struct mlx5_ib_dev *dev = to_mdev(device); | |
96 | int port_type_cap = MLX5_CAP_GEN(dev->mdev, port_type); | |
97 | ||
98 | return mlx5_port_type_cap_to_rdma_ll(port_type_cap); | |
99 | } | |
100 | ||
fc24fc5e AS |
101 | static int mlx5_netdev_event(struct notifier_block *this, |
102 | unsigned long event, void *ptr) | |
103 | { | |
104 | struct net_device *ndev = netdev_notifier_info_to_dev(ptr); | |
105 | struct mlx5_ib_dev *ibdev = container_of(this, struct mlx5_ib_dev, | |
106 | roce.nb); | |
107 | ||
5ec8c83e AH |
108 | switch (event) { |
109 | case NETDEV_REGISTER: | |
110 | case NETDEV_UNREGISTER: | |
111 | write_lock(&ibdev->roce.netdev_lock); | |
112 | if (ndev->dev.parent == &ibdev->mdev->pdev->dev) | |
113 | ibdev->roce.netdev = (event == NETDEV_UNREGISTER) ? | |
114 | NULL : ndev; | |
115 | write_unlock(&ibdev->roce.netdev_lock); | |
116 | break; | |
fc24fc5e | 117 | |
5ec8c83e | 118 | case NETDEV_UP: |
88621dfe AH |
119 | case NETDEV_DOWN: { |
120 | struct net_device *lag_ndev = mlx5_lag_get_roce_netdev(ibdev->mdev); | |
121 | struct net_device *upper = NULL; | |
122 | ||
123 | if (lag_ndev) { | |
124 | upper = netdev_master_upper_dev_get(lag_ndev); | |
125 | dev_put(lag_ndev); | |
126 | } | |
127 | ||
128 | if ((upper == ndev || (!upper && ndev == ibdev->roce.netdev)) | |
129 | && ibdev->ib_active) { | |
626bc02d | 130 | struct ib_event ibev = { }; |
5ec8c83e AH |
131 | |
132 | ibev.device = &ibdev->ib_dev; | |
133 | ibev.event = (event == NETDEV_UP) ? | |
134 | IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR; | |
135 | ibev.element.port_num = 1; | |
136 | ib_dispatch_event(&ibev); | |
137 | } | |
138 | break; | |
88621dfe | 139 | } |
fc24fc5e | 140 | |
5ec8c83e AH |
141 | default: |
142 | break; | |
143 | } | |
fc24fc5e AS |
144 | |
145 | return NOTIFY_DONE; | |
146 | } | |
147 | ||
148 | static struct net_device *mlx5_ib_get_netdev(struct ib_device *device, | |
149 | u8 port_num) | |
150 | { | |
151 | struct mlx5_ib_dev *ibdev = to_mdev(device); | |
152 | struct net_device *ndev; | |
153 | ||
88621dfe AH |
154 | ndev = mlx5_lag_get_roce_netdev(ibdev->mdev); |
155 | if (ndev) | |
156 | return ndev; | |
157 | ||
fc24fc5e AS |
158 | /* Ensure ndev does not disappear before we invoke dev_hold() |
159 | */ | |
160 | read_lock(&ibdev->roce.netdev_lock); | |
161 | ndev = ibdev->roce.netdev; | |
162 | if (ndev) | |
163 | dev_hold(ndev); | |
164 | read_unlock(&ibdev->roce.netdev_lock); | |
165 | ||
166 | return ndev; | |
167 | } | |
168 | ||
3f89a643 AS |
169 | static int mlx5_query_port_roce(struct ib_device *device, u8 port_num, |
170 | struct ib_port_attr *props) | |
171 | { | |
172 | struct mlx5_ib_dev *dev = to_mdev(device); | |
88621dfe | 173 | struct net_device *ndev, *upper; |
3f89a643 | 174 | enum ib_mtu ndev_ib_mtu; |
c876a1b7 | 175 | u16 qkey_viol_cntr; |
3f89a643 AS |
176 | |
177 | memset(props, 0, sizeof(*props)); | |
178 | ||
179 | props->port_cap_flags |= IB_PORT_CM_SUP; | |
180 | props->port_cap_flags |= IB_PORT_IP_BASED_GIDS; | |
181 | ||
182 | props->gid_tbl_len = MLX5_CAP_ROCE(dev->mdev, | |
183 | roce_address_table_size); | |
184 | props->max_mtu = IB_MTU_4096; | |
185 | props->max_msg_sz = 1 << MLX5_CAP_GEN(dev->mdev, log_max_msg); | |
186 | props->pkey_tbl_len = 1; | |
187 | props->state = IB_PORT_DOWN; | |
188 | props->phys_state = 3; | |
189 | ||
c876a1b7 LR |
190 | mlx5_query_nic_vport_qkey_viol_cntr(dev->mdev, &qkey_viol_cntr); |
191 | props->qkey_viol_cntr = qkey_viol_cntr; | |
3f89a643 AS |
192 | |
193 | ndev = mlx5_ib_get_netdev(device, port_num); | |
194 | if (!ndev) | |
195 | return 0; | |
196 | ||
88621dfe AH |
197 | if (mlx5_lag_is_active(dev->mdev)) { |
198 | rcu_read_lock(); | |
199 | upper = netdev_master_upper_dev_get_rcu(ndev); | |
200 | if (upper) { | |
201 | dev_put(ndev); | |
202 | ndev = upper; | |
203 | dev_hold(ndev); | |
204 | } | |
205 | rcu_read_unlock(); | |
206 | } | |
207 | ||
3f89a643 AS |
208 | if (netif_running(ndev) && netif_carrier_ok(ndev)) { |
209 | props->state = IB_PORT_ACTIVE; | |
210 | props->phys_state = 5; | |
211 | } | |
212 | ||
213 | ndev_ib_mtu = iboe_get_mtu(ndev->mtu); | |
214 | ||
215 | dev_put(ndev); | |
216 | ||
217 | props->active_mtu = min(props->max_mtu, ndev_ib_mtu); | |
218 | ||
219 | props->active_width = IB_WIDTH_4X; /* TODO */ | |
220 | props->active_speed = IB_SPEED_QDR; /* TODO */ | |
221 | ||
222 | return 0; | |
223 | } | |
224 | ||
3cca2606 AS |
225 | static void ib_gid_to_mlx5_roce_addr(const union ib_gid *gid, |
226 | const struct ib_gid_attr *attr, | |
227 | void *mlx5_addr) | |
228 | { | |
229 | #define MLX5_SET_RA(p, f, v) MLX5_SET(roce_addr_layout, p, f, v) | |
230 | char *mlx5_addr_l3_addr = MLX5_ADDR_OF(roce_addr_layout, mlx5_addr, | |
231 | source_l3_address); | |
232 | void *mlx5_addr_mac = MLX5_ADDR_OF(roce_addr_layout, mlx5_addr, | |
233 | source_mac_47_32); | |
234 | ||
235 | if (!gid) | |
236 | return; | |
237 | ||
238 | ether_addr_copy(mlx5_addr_mac, attr->ndev->dev_addr); | |
239 | ||
240 | if (is_vlan_dev(attr->ndev)) { | |
241 | MLX5_SET_RA(mlx5_addr, vlan_valid, 1); | |
242 | MLX5_SET_RA(mlx5_addr, vlan_id, vlan_dev_vlan_id(attr->ndev)); | |
243 | } | |
244 | ||
245 | switch (attr->gid_type) { | |
246 | case IB_GID_TYPE_IB: | |
247 | MLX5_SET_RA(mlx5_addr, roce_version, MLX5_ROCE_VERSION_1); | |
248 | break; | |
249 | case IB_GID_TYPE_ROCE_UDP_ENCAP: | |
250 | MLX5_SET_RA(mlx5_addr, roce_version, MLX5_ROCE_VERSION_2); | |
251 | break; | |
252 | ||
253 | default: | |
254 | WARN_ON(true); | |
255 | } | |
256 | ||
257 | if (attr->gid_type != IB_GID_TYPE_IB) { | |
258 | if (ipv6_addr_v4mapped((void *)gid)) | |
259 | MLX5_SET_RA(mlx5_addr, roce_l3_type, | |
260 | MLX5_ROCE_L3_TYPE_IPV4); | |
261 | else | |
262 | MLX5_SET_RA(mlx5_addr, roce_l3_type, | |
263 | MLX5_ROCE_L3_TYPE_IPV6); | |
264 | } | |
265 | ||
266 | if ((attr->gid_type == IB_GID_TYPE_IB) || | |
267 | !ipv6_addr_v4mapped((void *)gid)) | |
268 | memcpy(mlx5_addr_l3_addr, gid, sizeof(*gid)); | |
269 | else | |
270 | memcpy(&mlx5_addr_l3_addr[12], &gid->raw[12], 4); | |
271 | } | |
272 | ||
273 | static int set_roce_addr(struct ib_device *device, u8 port_num, | |
274 | unsigned int index, | |
275 | const union ib_gid *gid, | |
276 | const struct ib_gid_attr *attr) | |
277 | { | |
c4f287c4 SM |
278 | struct mlx5_ib_dev *dev = to_mdev(device); |
279 | u32 in[MLX5_ST_SZ_DW(set_roce_address_in)] = {0}; | |
280 | u32 out[MLX5_ST_SZ_DW(set_roce_address_out)] = {0}; | |
3cca2606 AS |
281 | void *in_addr = MLX5_ADDR_OF(set_roce_address_in, in, roce_address); |
282 | enum rdma_link_layer ll = mlx5_ib_port_link_layer(device, port_num); | |
283 | ||
284 | if (ll != IB_LINK_LAYER_ETHERNET) | |
285 | return -EINVAL; | |
286 | ||
3cca2606 AS |
287 | ib_gid_to_mlx5_roce_addr(gid, attr, in_addr); |
288 | ||
289 | MLX5_SET(set_roce_address_in, in, roce_address_index, index); | |
290 | MLX5_SET(set_roce_address_in, in, opcode, MLX5_CMD_OP_SET_ROCE_ADDRESS); | |
3cca2606 AS |
291 | return mlx5_cmd_exec(dev->mdev, in, sizeof(in), out, sizeof(out)); |
292 | } | |
293 | ||
294 | static int mlx5_ib_add_gid(struct ib_device *device, u8 port_num, | |
295 | unsigned int index, const union ib_gid *gid, | |
296 | const struct ib_gid_attr *attr, | |
297 | __always_unused void **context) | |
298 | { | |
299 | return set_roce_addr(device, port_num, index, gid, attr); | |
300 | } | |
301 | ||
302 | static int mlx5_ib_del_gid(struct ib_device *device, u8 port_num, | |
303 | unsigned int index, __always_unused void **context) | |
304 | { | |
305 | return set_roce_addr(device, port_num, index, NULL, NULL); | |
306 | } | |
307 | ||
2811ba51 AS |
308 | __be16 mlx5_get_roce_udp_sport(struct mlx5_ib_dev *dev, u8 port_num, |
309 | int index) | |
310 | { | |
311 | struct ib_gid_attr attr; | |
312 | union ib_gid gid; | |
313 | ||
314 | if (ib_get_cached_gid(&dev->ib_dev, port_num, index, &gid, &attr)) | |
315 | return 0; | |
316 | ||
317 | if (!attr.ndev) | |
318 | return 0; | |
319 | ||
320 | dev_put(attr.ndev); | |
321 | ||
322 | if (attr.gid_type != IB_GID_TYPE_ROCE_UDP_ENCAP) | |
323 | return 0; | |
324 | ||
325 | return cpu_to_be16(MLX5_CAP_ROCE(dev->mdev, r_roce_min_src_udp_port)); | |
326 | } | |
327 | ||
1b5daf11 MD |
328 | static int mlx5_use_mad_ifc(struct mlx5_ib_dev *dev) |
329 | { | |
7fae6655 NO |
330 | if (MLX5_CAP_GEN(dev->mdev, port_type) == MLX5_CAP_PORT_TYPE_IB) |
331 | return !MLX5_CAP_GEN(dev->mdev, ib_virt); | |
332 | return 0; | |
1b5daf11 MD |
333 | } |
334 | ||
335 | enum { | |
336 | MLX5_VPORT_ACCESS_METHOD_MAD, | |
337 | MLX5_VPORT_ACCESS_METHOD_HCA, | |
338 | MLX5_VPORT_ACCESS_METHOD_NIC, | |
339 | }; | |
340 | ||
341 | static int mlx5_get_vport_access_method(struct ib_device *ibdev) | |
342 | { | |
343 | if (mlx5_use_mad_ifc(to_mdev(ibdev))) | |
344 | return MLX5_VPORT_ACCESS_METHOD_MAD; | |
345 | ||
ebd61f68 | 346 | if (mlx5_ib_port_link_layer(ibdev, 1) == |
1b5daf11 MD |
347 | IB_LINK_LAYER_ETHERNET) |
348 | return MLX5_VPORT_ACCESS_METHOD_NIC; | |
349 | ||
350 | return MLX5_VPORT_ACCESS_METHOD_HCA; | |
351 | } | |
352 | ||
da7525d2 EBE |
353 | static void get_atomic_caps(struct mlx5_ib_dev *dev, |
354 | struct ib_device_attr *props) | |
355 | { | |
356 | u8 tmp; | |
357 | u8 atomic_operations = MLX5_CAP_ATOMIC(dev->mdev, atomic_operations); | |
358 | u8 atomic_size_qp = MLX5_CAP_ATOMIC(dev->mdev, atomic_size_qp); | |
359 | u8 atomic_req_8B_endianness_mode = | |
360 | MLX5_CAP_ATOMIC(dev->mdev, atomic_req_8B_endianess_mode); | |
361 | ||
362 | /* Check if HW supports 8 bytes standard atomic operations and capable | |
363 | * of host endianness respond | |
364 | */ | |
365 | tmp = MLX5_ATOMIC_OPS_CMP_SWAP | MLX5_ATOMIC_OPS_FETCH_ADD; | |
366 | if (((atomic_operations & tmp) == tmp) && | |
367 | (atomic_size_qp & MLX5_ATOMIC_SIZE_QP_8BYTES) && | |
368 | (atomic_req_8B_endianness_mode)) { | |
369 | props->atomic_cap = IB_ATOMIC_HCA; | |
370 | } else { | |
371 | props->atomic_cap = IB_ATOMIC_NONE; | |
372 | } | |
373 | } | |
374 | ||
1b5daf11 MD |
375 | static int mlx5_query_system_image_guid(struct ib_device *ibdev, |
376 | __be64 *sys_image_guid) | |
377 | { | |
378 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
379 | struct mlx5_core_dev *mdev = dev->mdev; | |
380 | u64 tmp; | |
381 | int err; | |
382 | ||
383 | switch (mlx5_get_vport_access_method(ibdev)) { | |
384 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
385 | return mlx5_query_mad_ifc_system_image_guid(ibdev, | |
386 | sys_image_guid); | |
387 | ||
388 | case MLX5_VPORT_ACCESS_METHOD_HCA: | |
389 | err = mlx5_query_hca_vport_system_image_guid(mdev, &tmp); | |
3f89a643 AS |
390 | break; |
391 | ||
392 | case MLX5_VPORT_ACCESS_METHOD_NIC: | |
393 | err = mlx5_query_nic_vport_system_image_guid(mdev, &tmp); | |
394 | break; | |
1b5daf11 MD |
395 | |
396 | default: | |
397 | return -EINVAL; | |
398 | } | |
3f89a643 AS |
399 | |
400 | if (!err) | |
401 | *sys_image_guid = cpu_to_be64(tmp); | |
402 | ||
403 | return err; | |
404 | ||
1b5daf11 MD |
405 | } |
406 | ||
407 | static int mlx5_query_max_pkeys(struct ib_device *ibdev, | |
408 | u16 *max_pkeys) | |
409 | { | |
410 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
411 | struct mlx5_core_dev *mdev = dev->mdev; | |
412 | ||
413 | switch (mlx5_get_vport_access_method(ibdev)) { | |
414 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
415 | return mlx5_query_mad_ifc_max_pkeys(ibdev, max_pkeys); | |
416 | ||
417 | case MLX5_VPORT_ACCESS_METHOD_HCA: | |
418 | case MLX5_VPORT_ACCESS_METHOD_NIC: | |
419 | *max_pkeys = mlx5_to_sw_pkey_sz(MLX5_CAP_GEN(mdev, | |
420 | pkey_table_size)); | |
421 | return 0; | |
422 | ||
423 | default: | |
424 | return -EINVAL; | |
425 | } | |
426 | } | |
427 | ||
428 | static int mlx5_query_vendor_id(struct ib_device *ibdev, | |
429 | u32 *vendor_id) | |
430 | { | |
431 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
432 | ||
433 | switch (mlx5_get_vport_access_method(ibdev)) { | |
434 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
435 | return mlx5_query_mad_ifc_vendor_id(ibdev, vendor_id); | |
436 | ||
437 | case MLX5_VPORT_ACCESS_METHOD_HCA: | |
438 | case MLX5_VPORT_ACCESS_METHOD_NIC: | |
439 | return mlx5_core_query_vendor_id(dev->mdev, vendor_id); | |
440 | ||
441 | default: | |
442 | return -EINVAL; | |
443 | } | |
444 | } | |
445 | ||
446 | static int mlx5_query_node_guid(struct mlx5_ib_dev *dev, | |
447 | __be64 *node_guid) | |
448 | { | |
449 | u64 tmp; | |
450 | int err; | |
451 | ||
452 | switch (mlx5_get_vport_access_method(&dev->ib_dev)) { | |
453 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
454 | return mlx5_query_mad_ifc_node_guid(dev, node_guid); | |
455 | ||
456 | case MLX5_VPORT_ACCESS_METHOD_HCA: | |
457 | err = mlx5_query_hca_vport_node_guid(dev->mdev, &tmp); | |
3f89a643 AS |
458 | break; |
459 | ||
460 | case MLX5_VPORT_ACCESS_METHOD_NIC: | |
461 | err = mlx5_query_nic_vport_node_guid(dev->mdev, &tmp); | |
462 | break; | |
1b5daf11 MD |
463 | |
464 | default: | |
465 | return -EINVAL; | |
466 | } | |
3f89a643 AS |
467 | |
468 | if (!err) | |
469 | *node_guid = cpu_to_be64(tmp); | |
470 | ||
471 | return err; | |
1b5daf11 MD |
472 | } |
473 | ||
474 | struct mlx5_reg_node_desc { | |
bd99fdea | 475 | u8 desc[IB_DEVICE_NODE_DESC_MAX]; |
1b5daf11 MD |
476 | }; |
477 | ||
478 | static int mlx5_query_node_desc(struct mlx5_ib_dev *dev, char *node_desc) | |
479 | { | |
480 | struct mlx5_reg_node_desc in; | |
481 | ||
482 | if (mlx5_use_mad_ifc(dev)) | |
483 | return mlx5_query_mad_ifc_node_desc(dev, node_desc); | |
484 | ||
485 | memset(&in, 0, sizeof(in)); | |
486 | ||
487 | return mlx5_core_access_reg(dev->mdev, &in, sizeof(in), node_desc, | |
488 | sizeof(struct mlx5_reg_node_desc), | |
489 | MLX5_REG_NODE_DESC, 0, 0); | |
490 | } | |
491 | ||
e126ba97 | 492 | static int mlx5_ib_query_device(struct ib_device *ibdev, |
2528e33e MB |
493 | struct ib_device_attr *props, |
494 | struct ib_udata *uhw) | |
e126ba97 EC |
495 | { |
496 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
938fe83c | 497 | struct mlx5_core_dev *mdev = dev->mdev; |
e126ba97 | 498 | int err = -ENOMEM; |
288c01b7 | 499 | int max_sq_desc; |
e126ba97 EC |
500 | int max_rq_sg; |
501 | int max_sq_sg; | |
e0238a6a | 502 | u64 min_page_size = 1ull << MLX5_CAP_GEN(mdev, log_pg_sz); |
402ca536 BW |
503 | struct mlx5_ib_query_device_resp resp = {}; |
504 | size_t resp_len; | |
505 | u64 max_tso; | |
e126ba97 | 506 | |
402ca536 BW |
507 | resp_len = sizeof(resp.comp_mask) + sizeof(resp.response_length); |
508 | if (uhw->outlen && uhw->outlen < resp_len) | |
509 | return -EINVAL; | |
510 | else | |
511 | resp.response_length = resp_len; | |
512 | ||
513 | if (uhw->inlen && !ib_is_udata_cleared(uhw, 0, uhw->inlen)) | |
2528e33e MB |
514 | return -EINVAL; |
515 | ||
1b5daf11 MD |
516 | memset(props, 0, sizeof(*props)); |
517 | err = mlx5_query_system_image_guid(ibdev, | |
518 | &props->sys_image_guid); | |
519 | if (err) | |
520 | return err; | |
e126ba97 | 521 | |
1b5daf11 | 522 | err = mlx5_query_max_pkeys(ibdev, &props->max_pkeys); |
e126ba97 | 523 | if (err) |
1b5daf11 | 524 | return err; |
e126ba97 | 525 | |
1b5daf11 MD |
526 | err = mlx5_query_vendor_id(ibdev, &props->vendor_id); |
527 | if (err) | |
528 | return err; | |
e126ba97 | 529 | |
9603b61d JM |
530 | props->fw_ver = ((u64)fw_rev_maj(dev->mdev) << 32) | |
531 | (fw_rev_min(dev->mdev) << 16) | | |
532 | fw_rev_sub(dev->mdev); | |
e126ba97 EC |
533 | props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | |
534 | IB_DEVICE_PORT_ACTIVE_EVENT | | |
535 | IB_DEVICE_SYS_IMAGE_GUID | | |
1a4c3a3d | 536 | IB_DEVICE_RC_RNR_NAK_GEN; |
938fe83c SM |
537 | |
538 | if (MLX5_CAP_GEN(mdev, pkv)) | |
e126ba97 | 539 | props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; |
938fe83c | 540 | if (MLX5_CAP_GEN(mdev, qkv)) |
e126ba97 | 541 | props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; |
938fe83c | 542 | if (MLX5_CAP_GEN(mdev, apm)) |
e126ba97 | 543 | props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; |
938fe83c | 544 | if (MLX5_CAP_GEN(mdev, xrc)) |
e126ba97 | 545 | props->device_cap_flags |= IB_DEVICE_XRC; |
d2370e0a MB |
546 | if (MLX5_CAP_GEN(mdev, imaicl)) { |
547 | props->device_cap_flags |= IB_DEVICE_MEM_WINDOW | | |
548 | IB_DEVICE_MEM_WINDOW_TYPE_2B; | |
549 | props->max_mw = 1 << MLX5_CAP_GEN(mdev, log_max_mkey); | |
b005d316 SG |
550 | /* We support 'Gappy' memory registration too */ |
551 | props->device_cap_flags |= IB_DEVICE_SG_GAPS_REG; | |
d2370e0a | 552 | } |
e126ba97 | 553 | props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; |
938fe83c | 554 | if (MLX5_CAP_GEN(mdev, sho)) { |
2dea9094 SG |
555 | props->device_cap_flags |= IB_DEVICE_SIGNATURE_HANDOVER; |
556 | /* At this stage no support for signature handover */ | |
557 | props->sig_prot_cap = IB_PROT_T10DIF_TYPE_1 | | |
558 | IB_PROT_T10DIF_TYPE_2 | | |
559 | IB_PROT_T10DIF_TYPE_3; | |
560 | props->sig_guard_cap = IB_GUARD_T10DIF_CRC | | |
561 | IB_GUARD_T10DIF_CSUM; | |
562 | } | |
938fe83c | 563 | if (MLX5_CAP_GEN(mdev, block_lb_mc)) |
f360d88a | 564 | props->device_cap_flags |= IB_DEVICE_BLOCK_MULTICAST_LOOPBACK; |
e126ba97 | 565 | |
402ca536 BW |
566 | if (MLX5_CAP_GEN(dev->mdev, eth_net_offloads)) { |
567 | if (MLX5_CAP_ETH(mdev, csum_cap)) | |
88115fe7 BW |
568 | props->device_cap_flags |= IB_DEVICE_RAW_IP_CSUM; |
569 | ||
402ca536 BW |
570 | if (field_avail(typeof(resp), tso_caps, uhw->outlen)) { |
571 | max_tso = MLX5_CAP_ETH(mdev, max_lso_cap); | |
572 | if (max_tso) { | |
573 | resp.tso_caps.max_tso = 1 << max_tso; | |
574 | resp.tso_caps.supported_qpts |= | |
575 | 1 << IB_QPT_RAW_PACKET; | |
576 | resp.response_length += sizeof(resp.tso_caps); | |
577 | } | |
578 | } | |
31f69a82 YH |
579 | |
580 | if (field_avail(typeof(resp), rss_caps, uhw->outlen)) { | |
581 | resp.rss_caps.rx_hash_function = | |
582 | MLX5_RX_HASH_FUNC_TOEPLITZ; | |
583 | resp.rss_caps.rx_hash_fields_mask = | |
584 | MLX5_RX_HASH_SRC_IPV4 | | |
585 | MLX5_RX_HASH_DST_IPV4 | | |
586 | MLX5_RX_HASH_SRC_IPV6 | | |
587 | MLX5_RX_HASH_DST_IPV6 | | |
588 | MLX5_RX_HASH_SRC_PORT_TCP | | |
589 | MLX5_RX_HASH_DST_PORT_TCP | | |
590 | MLX5_RX_HASH_SRC_PORT_UDP | | |
591 | MLX5_RX_HASH_DST_PORT_UDP; | |
592 | resp.response_length += sizeof(resp.rss_caps); | |
593 | } | |
594 | } else { | |
595 | if (field_avail(typeof(resp), tso_caps, uhw->outlen)) | |
596 | resp.response_length += sizeof(resp.tso_caps); | |
597 | if (field_avail(typeof(resp), rss_caps, uhw->outlen)) | |
598 | resp.response_length += sizeof(resp.rss_caps); | |
402ca536 BW |
599 | } |
600 | ||
f0313965 ES |
601 | if (MLX5_CAP_GEN(mdev, ipoib_basic_offloads)) { |
602 | props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM; | |
603 | props->device_cap_flags |= IB_DEVICE_UD_TSO; | |
604 | } | |
605 | ||
cff5a0f3 MD |
606 | if (MLX5_CAP_GEN(dev->mdev, eth_net_offloads) && |
607 | MLX5_CAP_ETH(dev->mdev, scatter_fcs)) | |
608 | props->device_cap_flags |= IB_DEVICE_RAW_SCATTER_FCS; | |
609 | ||
da6d6ba3 MG |
610 | if (mlx5_get_flow_namespace(dev->mdev, MLX5_FLOW_NAMESPACE_BYPASS)) |
611 | props->device_cap_flags |= IB_DEVICE_MANAGED_FLOW_STEERING; | |
612 | ||
1b5daf11 MD |
613 | props->vendor_part_id = mdev->pdev->device; |
614 | props->hw_ver = mdev->pdev->revision; | |
e126ba97 EC |
615 | |
616 | props->max_mr_size = ~0ull; | |
e0238a6a | 617 | props->page_size_cap = ~(min_page_size - 1); |
938fe83c SM |
618 | props->max_qp = 1 << MLX5_CAP_GEN(mdev, log_max_qp); |
619 | props->max_qp_wr = 1 << MLX5_CAP_GEN(mdev, log_max_qp_sz); | |
620 | max_rq_sg = MLX5_CAP_GEN(mdev, max_wqe_sz_rq) / | |
621 | sizeof(struct mlx5_wqe_data_seg); | |
288c01b7 EC |
622 | max_sq_desc = min_t(int, MLX5_CAP_GEN(mdev, max_wqe_sz_sq), 512); |
623 | max_sq_sg = (max_sq_desc - sizeof(struct mlx5_wqe_ctrl_seg) - | |
624 | sizeof(struct mlx5_wqe_raddr_seg)) / | |
625 | sizeof(struct mlx5_wqe_data_seg); | |
e126ba97 | 626 | props->max_sge = min(max_rq_sg, max_sq_sg); |
986ef95e | 627 | props->max_sge_rd = MLX5_MAX_SGE_RD; |
938fe83c | 628 | props->max_cq = 1 << MLX5_CAP_GEN(mdev, log_max_cq); |
9f177686 | 629 | props->max_cqe = (1 << MLX5_CAP_GEN(mdev, log_max_cq_sz)) - 1; |
938fe83c SM |
630 | props->max_mr = 1 << MLX5_CAP_GEN(mdev, log_max_mkey); |
631 | props->max_pd = 1 << MLX5_CAP_GEN(mdev, log_max_pd); | |
632 | props->max_qp_rd_atom = 1 << MLX5_CAP_GEN(mdev, log_max_ra_req_qp); | |
633 | props->max_qp_init_rd_atom = 1 << MLX5_CAP_GEN(mdev, log_max_ra_res_qp); | |
634 | props->max_srq = 1 << MLX5_CAP_GEN(mdev, log_max_srq); | |
635 | props->max_srq_wr = (1 << MLX5_CAP_GEN(mdev, log_max_srq_sz)) - 1; | |
636 | props->local_ca_ack_delay = MLX5_CAP_GEN(mdev, local_ca_ack_delay); | |
e126ba97 | 637 | props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; |
e126ba97 | 638 | props->max_srq_sge = max_rq_sg - 1; |
911f4331 SG |
639 | props->max_fast_reg_page_list_len = |
640 | 1 << MLX5_CAP_GEN(mdev, log_max_klm_list_size); | |
da7525d2 | 641 | get_atomic_caps(dev, props); |
81bea28f | 642 | props->masked_atomic_cap = IB_ATOMIC_NONE; |
938fe83c SM |
643 | props->max_mcast_grp = 1 << MLX5_CAP_GEN(mdev, log_max_mcg); |
644 | props->max_mcast_qp_attach = MLX5_CAP_GEN(mdev, max_qp_mcg); | |
e126ba97 EC |
645 | props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * |
646 | props->max_mcast_grp; | |
647 | props->max_map_per_fmr = INT_MAX; /* no limit in ConnectIB */ | |
86695a65 | 648 | props->max_ah = INT_MAX; |
7c60bcbb MB |
649 | props->hca_core_clock = MLX5_CAP_GEN(mdev, device_frequency_khz); |
650 | props->timestamp_mask = 0x7FFFFFFFFFFFFFFFULL; | |
e126ba97 | 651 | |
8cdd312c | 652 | #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING |
938fe83c | 653 | if (MLX5_CAP_GEN(mdev, pg)) |
8cdd312c HE |
654 | props->device_cap_flags |= IB_DEVICE_ON_DEMAND_PAGING; |
655 | props->odp_caps = dev->odp_caps; | |
656 | #endif | |
657 | ||
051f2630 LR |
658 | if (MLX5_CAP_GEN(mdev, cd)) |
659 | props->device_cap_flags |= IB_DEVICE_CROSS_CHANNEL; | |
660 | ||
eff901d3 EC |
661 | if (!mlx5_core_is_pf(mdev)) |
662 | props->device_cap_flags |= IB_DEVICE_VIRTUAL_FUNCTION; | |
663 | ||
31f69a82 YH |
664 | if (mlx5_ib_port_link_layer(ibdev, 1) == |
665 | IB_LINK_LAYER_ETHERNET) { | |
666 | props->rss_caps.max_rwq_indirection_tables = | |
667 | 1 << MLX5_CAP_GEN(dev->mdev, log_max_rqt); | |
668 | props->rss_caps.max_rwq_indirection_table_size = | |
669 | 1 << MLX5_CAP_GEN(dev->mdev, log_max_rqt_size); | |
670 | props->rss_caps.supported_qpts = 1 << IB_QPT_RAW_PACKET; | |
671 | props->max_wq_type_rq = | |
672 | 1 << MLX5_CAP_GEN(dev->mdev, log_max_rq); | |
673 | } | |
674 | ||
7e43a2a5 BW |
675 | if (field_avail(typeof(resp), cqe_comp_caps, uhw->outlen)) { |
676 | resp.cqe_comp_caps.max_num = | |
677 | MLX5_CAP_GEN(dev->mdev, cqe_compression) ? | |
678 | MLX5_CAP_GEN(dev->mdev, cqe_compression_max_num) : 0; | |
679 | resp.cqe_comp_caps.supported_format = | |
680 | MLX5_IB_CQE_RES_FORMAT_HASH | | |
681 | MLX5_IB_CQE_RES_FORMAT_CSUM; | |
682 | resp.response_length += sizeof(resp.cqe_comp_caps); | |
683 | } | |
684 | ||
d949167d BW |
685 | if (field_avail(typeof(resp), packet_pacing_caps, uhw->outlen)) { |
686 | if (MLX5_CAP_QOS(mdev, packet_pacing) && | |
687 | MLX5_CAP_GEN(mdev, qos)) { | |
688 | resp.packet_pacing_caps.qp_rate_limit_max = | |
689 | MLX5_CAP_QOS(mdev, packet_pacing_max_rate); | |
690 | resp.packet_pacing_caps.qp_rate_limit_min = | |
691 | MLX5_CAP_QOS(mdev, packet_pacing_min_rate); | |
692 | resp.packet_pacing_caps.supported_qpts |= | |
693 | 1 << IB_QPT_RAW_PACKET; | |
694 | } | |
695 | resp.response_length += sizeof(resp.packet_pacing_caps); | |
696 | } | |
697 | ||
9f885201 LR |
698 | if (field_avail(typeof(resp), mlx5_ib_support_multi_pkt_send_wqes, |
699 | uhw->outlen)) { | |
700 | resp.mlx5_ib_support_multi_pkt_send_wqes = | |
701 | MLX5_CAP_ETH(mdev, multi_pkt_send_wqe); | |
702 | resp.response_length += | |
703 | sizeof(resp.mlx5_ib_support_multi_pkt_send_wqes); | |
704 | } | |
705 | ||
706 | if (field_avail(typeof(resp), reserved, uhw->outlen)) | |
707 | resp.response_length += sizeof(resp.reserved); | |
708 | ||
402ca536 BW |
709 | if (uhw->outlen) { |
710 | err = ib_copy_to_udata(uhw, &resp, resp.response_length); | |
711 | ||
712 | if (err) | |
713 | return err; | |
714 | } | |
715 | ||
1b5daf11 | 716 | return 0; |
e126ba97 EC |
717 | } |
718 | ||
1b5daf11 MD |
719 | enum mlx5_ib_width { |
720 | MLX5_IB_WIDTH_1X = 1 << 0, | |
721 | MLX5_IB_WIDTH_2X = 1 << 1, | |
722 | MLX5_IB_WIDTH_4X = 1 << 2, | |
723 | MLX5_IB_WIDTH_8X = 1 << 3, | |
724 | MLX5_IB_WIDTH_12X = 1 << 4 | |
725 | }; | |
726 | ||
727 | static int translate_active_width(struct ib_device *ibdev, u8 active_width, | |
728 | u8 *ib_width) | |
e126ba97 EC |
729 | { |
730 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
1b5daf11 MD |
731 | int err = 0; |
732 | ||
733 | if (active_width & MLX5_IB_WIDTH_1X) { | |
734 | *ib_width = IB_WIDTH_1X; | |
735 | } else if (active_width & MLX5_IB_WIDTH_2X) { | |
736 | mlx5_ib_dbg(dev, "active_width %d is not supported by IB spec\n", | |
737 | (int)active_width); | |
738 | err = -EINVAL; | |
739 | } else if (active_width & MLX5_IB_WIDTH_4X) { | |
740 | *ib_width = IB_WIDTH_4X; | |
741 | } else if (active_width & MLX5_IB_WIDTH_8X) { | |
742 | *ib_width = IB_WIDTH_8X; | |
743 | } else if (active_width & MLX5_IB_WIDTH_12X) { | |
744 | *ib_width = IB_WIDTH_12X; | |
745 | } else { | |
746 | mlx5_ib_dbg(dev, "Invalid active_width %d\n", | |
747 | (int)active_width); | |
748 | err = -EINVAL; | |
e126ba97 EC |
749 | } |
750 | ||
1b5daf11 MD |
751 | return err; |
752 | } | |
e126ba97 | 753 | |
1b5daf11 MD |
754 | static int mlx5_mtu_to_ib_mtu(int mtu) |
755 | { | |
756 | switch (mtu) { | |
757 | case 256: return 1; | |
758 | case 512: return 2; | |
759 | case 1024: return 3; | |
760 | case 2048: return 4; | |
761 | case 4096: return 5; | |
762 | default: | |
763 | pr_warn("invalid mtu\n"); | |
764 | return -1; | |
e126ba97 | 765 | } |
1b5daf11 | 766 | } |
e126ba97 | 767 | |
1b5daf11 MD |
768 | enum ib_max_vl_num { |
769 | __IB_MAX_VL_0 = 1, | |
770 | __IB_MAX_VL_0_1 = 2, | |
771 | __IB_MAX_VL_0_3 = 3, | |
772 | __IB_MAX_VL_0_7 = 4, | |
773 | __IB_MAX_VL_0_14 = 5, | |
774 | }; | |
e126ba97 | 775 | |
1b5daf11 MD |
776 | enum mlx5_vl_hw_cap { |
777 | MLX5_VL_HW_0 = 1, | |
778 | MLX5_VL_HW_0_1 = 2, | |
779 | MLX5_VL_HW_0_2 = 3, | |
780 | MLX5_VL_HW_0_3 = 4, | |
781 | MLX5_VL_HW_0_4 = 5, | |
782 | MLX5_VL_HW_0_5 = 6, | |
783 | MLX5_VL_HW_0_6 = 7, | |
784 | MLX5_VL_HW_0_7 = 8, | |
785 | MLX5_VL_HW_0_14 = 15 | |
786 | }; | |
e126ba97 | 787 | |
1b5daf11 MD |
788 | static int translate_max_vl_num(struct ib_device *ibdev, u8 vl_hw_cap, |
789 | u8 *max_vl_num) | |
790 | { | |
791 | switch (vl_hw_cap) { | |
792 | case MLX5_VL_HW_0: | |
793 | *max_vl_num = __IB_MAX_VL_0; | |
794 | break; | |
795 | case MLX5_VL_HW_0_1: | |
796 | *max_vl_num = __IB_MAX_VL_0_1; | |
797 | break; | |
798 | case MLX5_VL_HW_0_3: | |
799 | *max_vl_num = __IB_MAX_VL_0_3; | |
800 | break; | |
801 | case MLX5_VL_HW_0_7: | |
802 | *max_vl_num = __IB_MAX_VL_0_7; | |
803 | break; | |
804 | case MLX5_VL_HW_0_14: | |
805 | *max_vl_num = __IB_MAX_VL_0_14; | |
806 | break; | |
e126ba97 | 807 | |
1b5daf11 MD |
808 | default: |
809 | return -EINVAL; | |
e126ba97 | 810 | } |
e126ba97 | 811 | |
1b5daf11 | 812 | return 0; |
e126ba97 EC |
813 | } |
814 | ||
1b5daf11 MD |
815 | static int mlx5_query_hca_port(struct ib_device *ibdev, u8 port, |
816 | struct ib_port_attr *props) | |
e126ba97 | 817 | { |
1b5daf11 MD |
818 | struct mlx5_ib_dev *dev = to_mdev(ibdev); |
819 | struct mlx5_core_dev *mdev = dev->mdev; | |
820 | struct mlx5_hca_vport_context *rep; | |
046339ea SM |
821 | u16 max_mtu; |
822 | u16 oper_mtu; | |
1b5daf11 MD |
823 | int err; |
824 | u8 ib_link_width_oper; | |
825 | u8 vl_hw_cap; | |
e126ba97 | 826 | |
1b5daf11 MD |
827 | rep = kzalloc(sizeof(*rep), GFP_KERNEL); |
828 | if (!rep) { | |
829 | err = -ENOMEM; | |
e126ba97 | 830 | goto out; |
e126ba97 | 831 | } |
e126ba97 | 832 | |
1b5daf11 | 833 | memset(props, 0, sizeof(*props)); |
e126ba97 | 834 | |
1b5daf11 | 835 | err = mlx5_query_hca_vport_context(mdev, 0, port, 0, rep); |
e126ba97 EC |
836 | if (err) |
837 | goto out; | |
838 | ||
1b5daf11 MD |
839 | props->lid = rep->lid; |
840 | props->lmc = rep->lmc; | |
841 | props->sm_lid = rep->sm_lid; | |
842 | props->sm_sl = rep->sm_sl; | |
843 | props->state = rep->vport_state; | |
844 | props->phys_state = rep->port_physical_state; | |
845 | props->port_cap_flags = rep->cap_mask1; | |
846 | props->gid_tbl_len = mlx5_get_gid_table_len(MLX5_CAP_GEN(mdev, gid_table_size)); | |
847 | props->max_msg_sz = 1 << MLX5_CAP_GEN(mdev, log_max_msg); | |
848 | props->pkey_tbl_len = mlx5_to_sw_pkey_sz(MLX5_CAP_GEN(mdev, pkey_table_size)); | |
849 | props->bad_pkey_cntr = rep->pkey_violation_counter; | |
850 | props->qkey_viol_cntr = rep->qkey_violation_counter; | |
851 | props->subnet_timeout = rep->subnet_timeout; | |
852 | props->init_type_reply = rep->init_type_reply; | |
eff901d3 | 853 | props->grh_required = rep->grh_required; |
e126ba97 | 854 | |
1b5daf11 MD |
855 | err = mlx5_query_port_link_width_oper(mdev, &ib_link_width_oper, port); |
856 | if (err) | |
e126ba97 | 857 | goto out; |
e126ba97 | 858 | |
1b5daf11 MD |
859 | err = translate_active_width(ibdev, ib_link_width_oper, |
860 | &props->active_width); | |
861 | if (err) | |
862 | goto out; | |
d5beb7f2 | 863 | err = mlx5_query_port_ib_proto_oper(mdev, &props->active_speed, port); |
e126ba97 EC |
864 | if (err) |
865 | goto out; | |
866 | ||
facc9699 | 867 | mlx5_query_port_max_mtu(mdev, &max_mtu, port); |
e126ba97 | 868 | |
1b5daf11 | 869 | props->max_mtu = mlx5_mtu_to_ib_mtu(max_mtu); |
e126ba97 | 870 | |
facc9699 | 871 | mlx5_query_port_oper_mtu(mdev, &oper_mtu, port); |
e126ba97 | 872 | |
1b5daf11 | 873 | props->active_mtu = mlx5_mtu_to_ib_mtu(oper_mtu); |
e126ba97 | 874 | |
1b5daf11 MD |
875 | err = mlx5_query_port_vl_hw_cap(mdev, &vl_hw_cap, port); |
876 | if (err) | |
877 | goto out; | |
e126ba97 | 878 | |
1b5daf11 MD |
879 | err = translate_max_vl_num(ibdev, vl_hw_cap, |
880 | &props->max_vl_num); | |
e126ba97 | 881 | out: |
1b5daf11 | 882 | kfree(rep); |
e126ba97 EC |
883 | return err; |
884 | } | |
885 | ||
1b5daf11 MD |
886 | int mlx5_ib_query_port(struct ib_device *ibdev, u8 port, |
887 | struct ib_port_attr *props) | |
e126ba97 | 888 | { |
1b5daf11 MD |
889 | switch (mlx5_get_vport_access_method(ibdev)) { |
890 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
891 | return mlx5_query_mad_ifc_port(ibdev, port, props); | |
e126ba97 | 892 | |
1b5daf11 MD |
893 | case MLX5_VPORT_ACCESS_METHOD_HCA: |
894 | return mlx5_query_hca_port(ibdev, port, props); | |
e126ba97 | 895 | |
3f89a643 AS |
896 | case MLX5_VPORT_ACCESS_METHOD_NIC: |
897 | return mlx5_query_port_roce(ibdev, port, props); | |
898 | ||
1b5daf11 MD |
899 | default: |
900 | return -EINVAL; | |
901 | } | |
902 | } | |
e126ba97 | 903 | |
1b5daf11 MD |
904 | static int mlx5_ib_query_gid(struct ib_device *ibdev, u8 port, int index, |
905 | union ib_gid *gid) | |
906 | { | |
907 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
908 | struct mlx5_core_dev *mdev = dev->mdev; | |
e126ba97 | 909 | |
1b5daf11 MD |
910 | switch (mlx5_get_vport_access_method(ibdev)) { |
911 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
912 | return mlx5_query_mad_ifc_gids(ibdev, port, index, gid); | |
e126ba97 | 913 | |
1b5daf11 MD |
914 | case MLX5_VPORT_ACCESS_METHOD_HCA: |
915 | return mlx5_query_hca_vport_gid(mdev, 0, port, 0, index, gid); | |
916 | ||
917 | default: | |
918 | return -EINVAL; | |
919 | } | |
e126ba97 | 920 | |
e126ba97 EC |
921 | } |
922 | ||
1b5daf11 MD |
923 | static int mlx5_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, |
924 | u16 *pkey) | |
925 | { | |
926 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
927 | struct mlx5_core_dev *mdev = dev->mdev; | |
928 | ||
929 | switch (mlx5_get_vport_access_method(ibdev)) { | |
930 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
931 | return mlx5_query_mad_ifc_pkey(ibdev, port, index, pkey); | |
932 | ||
933 | case MLX5_VPORT_ACCESS_METHOD_HCA: | |
934 | case MLX5_VPORT_ACCESS_METHOD_NIC: | |
935 | return mlx5_query_hca_vport_pkey(mdev, 0, port, 0, index, | |
936 | pkey); | |
937 | default: | |
938 | return -EINVAL; | |
939 | } | |
940 | } | |
e126ba97 EC |
941 | |
942 | static int mlx5_ib_modify_device(struct ib_device *ibdev, int mask, | |
943 | struct ib_device_modify *props) | |
944 | { | |
945 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
946 | struct mlx5_reg_node_desc in; | |
947 | struct mlx5_reg_node_desc out; | |
948 | int err; | |
949 | ||
950 | if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) | |
951 | return -EOPNOTSUPP; | |
952 | ||
953 | if (!(mask & IB_DEVICE_MODIFY_NODE_DESC)) | |
954 | return 0; | |
955 | ||
956 | /* | |
957 | * If possible, pass node desc to FW, so it can generate | |
958 | * a 144 trap. If cmd fails, just ignore. | |
959 | */ | |
bd99fdea | 960 | memcpy(&in, props->node_desc, IB_DEVICE_NODE_DESC_MAX); |
9603b61d | 961 | err = mlx5_core_access_reg(dev->mdev, &in, sizeof(in), &out, |
e126ba97 EC |
962 | sizeof(out), MLX5_REG_NODE_DESC, 0, 1); |
963 | if (err) | |
964 | return err; | |
965 | ||
bd99fdea | 966 | memcpy(ibdev->node_desc, props->node_desc, IB_DEVICE_NODE_DESC_MAX); |
e126ba97 EC |
967 | |
968 | return err; | |
969 | } | |
970 | ||
971 | static int mlx5_ib_modify_port(struct ib_device *ibdev, u8 port, int mask, | |
972 | struct ib_port_modify *props) | |
973 | { | |
974 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
975 | struct ib_port_attr attr; | |
976 | u32 tmp; | |
977 | int err; | |
978 | ||
979 | mutex_lock(&dev->cap_mask_mutex); | |
980 | ||
981 | err = mlx5_ib_query_port(ibdev, port, &attr); | |
982 | if (err) | |
983 | goto out; | |
984 | ||
985 | tmp = (attr.port_cap_flags | props->set_port_cap_mask) & | |
986 | ~props->clr_port_cap_mask; | |
987 | ||
9603b61d | 988 | err = mlx5_set_port_caps(dev->mdev, port, tmp); |
e126ba97 EC |
989 | |
990 | out: | |
991 | mutex_unlock(&dev->cap_mask_mutex); | |
992 | return err; | |
993 | } | |
994 | ||
30aa60b3 EC |
995 | static void print_lib_caps(struct mlx5_ib_dev *dev, u64 caps) |
996 | { | |
997 | mlx5_ib_dbg(dev, "MLX5_LIB_CAP_4K_UAR = %s\n", | |
998 | caps & MLX5_LIB_CAP_4K_UAR ? "y" : "n"); | |
999 | } | |
1000 | ||
b037c29a EC |
1001 | static int calc_total_bfregs(struct mlx5_ib_dev *dev, bool lib_uar_4k, |
1002 | struct mlx5_ib_alloc_ucontext_req_v2 *req, | |
1003 | u32 *num_sys_pages) | |
1004 | { | |
1005 | int uars_per_sys_page; | |
1006 | int bfregs_per_sys_page; | |
1007 | int ref_bfregs = req->total_num_bfregs; | |
1008 | ||
1009 | if (req->total_num_bfregs == 0) | |
1010 | return -EINVAL; | |
1011 | ||
1012 | BUILD_BUG_ON(MLX5_MAX_BFREGS % MLX5_NON_FP_BFREGS_IN_PAGE); | |
1013 | BUILD_BUG_ON(MLX5_MAX_BFREGS < MLX5_NON_FP_BFREGS_IN_PAGE); | |
1014 | ||
1015 | if (req->total_num_bfregs > MLX5_MAX_BFREGS) | |
1016 | return -ENOMEM; | |
1017 | ||
1018 | uars_per_sys_page = get_uars_per_sys_page(dev, lib_uar_4k); | |
1019 | bfregs_per_sys_page = uars_per_sys_page * MLX5_NON_FP_BFREGS_PER_UAR; | |
1020 | req->total_num_bfregs = ALIGN(req->total_num_bfregs, bfregs_per_sys_page); | |
1021 | *num_sys_pages = req->total_num_bfregs / bfregs_per_sys_page; | |
1022 | ||
1023 | if (req->num_low_latency_bfregs > req->total_num_bfregs - 1) | |
1024 | return -EINVAL; | |
1025 | ||
1026 | mlx5_ib_dbg(dev, "uar_4k: fw support %s, lib support %s, user requested %d bfregs, alloated %d, using %d sys pages\n", | |
1027 | MLX5_CAP_GEN(dev->mdev, uar_4k) ? "yes" : "no", | |
1028 | lib_uar_4k ? "yes" : "no", ref_bfregs, | |
1029 | req->total_num_bfregs, *num_sys_pages); | |
1030 | ||
1031 | return 0; | |
1032 | } | |
1033 | ||
1034 | static int allocate_uars(struct mlx5_ib_dev *dev, struct mlx5_ib_ucontext *context) | |
1035 | { | |
1036 | struct mlx5_bfreg_info *bfregi; | |
1037 | int err; | |
1038 | int i; | |
1039 | ||
1040 | bfregi = &context->bfregi; | |
1041 | for (i = 0; i < bfregi->num_sys_pages; i++) { | |
1042 | err = mlx5_cmd_alloc_uar(dev->mdev, &bfregi->sys_pages[i]); | |
1043 | if (err) | |
1044 | goto error; | |
1045 | ||
1046 | mlx5_ib_dbg(dev, "allocated uar %d\n", bfregi->sys_pages[i]); | |
1047 | } | |
1048 | return 0; | |
1049 | ||
1050 | error: | |
1051 | for (--i; i >= 0; i--) | |
1052 | if (mlx5_cmd_free_uar(dev->mdev, bfregi->sys_pages[i])) | |
1053 | mlx5_ib_warn(dev, "failed to free uar %d\n", i); | |
1054 | ||
1055 | return err; | |
1056 | } | |
1057 | ||
1058 | static int deallocate_uars(struct mlx5_ib_dev *dev, struct mlx5_ib_ucontext *context) | |
1059 | { | |
1060 | struct mlx5_bfreg_info *bfregi; | |
1061 | int err; | |
1062 | int i; | |
1063 | ||
1064 | bfregi = &context->bfregi; | |
1065 | for (i = 0; i < bfregi->num_sys_pages; i++) { | |
1066 | err = mlx5_cmd_free_uar(dev->mdev, bfregi->sys_pages[i]); | |
1067 | if (err) { | |
1068 | mlx5_ib_warn(dev, "failed to free uar %d\n", i); | |
1069 | return err; | |
1070 | } | |
1071 | } | |
1072 | return 0; | |
1073 | } | |
1074 | ||
e126ba97 EC |
1075 | static struct ib_ucontext *mlx5_ib_alloc_ucontext(struct ib_device *ibdev, |
1076 | struct ib_udata *udata) | |
1077 | { | |
1078 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
b368d7cb MB |
1079 | struct mlx5_ib_alloc_ucontext_req_v2 req = {}; |
1080 | struct mlx5_ib_alloc_ucontext_resp resp = {}; | |
e126ba97 | 1081 | struct mlx5_ib_ucontext *context; |
2f5ff264 | 1082 | struct mlx5_bfreg_info *bfregi; |
78c0f98c | 1083 | int ver; |
e126ba97 | 1084 | int err; |
f241e749 | 1085 | size_t reqlen; |
a168a41c MD |
1086 | size_t min_req_v2 = offsetof(struct mlx5_ib_alloc_ucontext_req_v2, |
1087 | max_cqe_version); | |
b037c29a | 1088 | bool lib_uar_4k; |
e126ba97 EC |
1089 | |
1090 | if (!dev->ib_active) | |
1091 | return ERR_PTR(-EAGAIN); | |
1092 | ||
dfbee859 HA |
1093 | if (udata->inlen < sizeof(struct ib_uverbs_cmd_hdr)) |
1094 | return ERR_PTR(-EINVAL); | |
1095 | ||
78c0f98c EC |
1096 | reqlen = udata->inlen - sizeof(struct ib_uverbs_cmd_hdr); |
1097 | if (reqlen == sizeof(struct mlx5_ib_alloc_ucontext_req)) | |
1098 | ver = 0; | |
a168a41c | 1099 | else if (reqlen >= min_req_v2) |
78c0f98c EC |
1100 | ver = 2; |
1101 | else | |
1102 | return ERR_PTR(-EINVAL); | |
1103 | ||
b368d7cb | 1104 | err = ib_copy_from_udata(&req, udata, min(reqlen, sizeof(req))); |
e126ba97 EC |
1105 | if (err) |
1106 | return ERR_PTR(err); | |
1107 | ||
b368d7cb | 1108 | if (req.flags) |
78c0f98c EC |
1109 | return ERR_PTR(-EINVAL); |
1110 | ||
f72300c5 | 1111 | if (req.comp_mask || req.reserved0 || req.reserved1 || req.reserved2) |
b368d7cb MB |
1112 | return ERR_PTR(-EOPNOTSUPP); |
1113 | ||
2f5ff264 EC |
1114 | req.total_num_bfregs = ALIGN(req.total_num_bfregs, |
1115 | MLX5_NON_FP_BFREGS_PER_UAR); | |
1116 | if (req.num_low_latency_bfregs > req.total_num_bfregs - 1) | |
e126ba97 EC |
1117 | return ERR_PTR(-EINVAL); |
1118 | ||
938fe83c | 1119 | resp.qp_tab_size = 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp); |
2cc6ad5f NO |
1120 | if (mlx5_core_is_pf(dev->mdev) && MLX5_CAP_GEN(dev->mdev, bf)) |
1121 | resp.bf_reg_size = 1 << MLX5_CAP_GEN(dev->mdev, log_bf_reg_size); | |
b47bd6ea | 1122 | resp.cache_line_size = cache_line_size(); |
938fe83c SM |
1123 | resp.max_sq_desc_sz = MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq); |
1124 | resp.max_rq_desc_sz = MLX5_CAP_GEN(dev->mdev, max_wqe_sz_rq); | |
1125 | resp.max_send_wqebb = 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz); | |
1126 | resp.max_recv_wr = 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz); | |
1127 | resp.max_srq_recv_wr = 1 << MLX5_CAP_GEN(dev->mdev, log_max_srq_sz); | |
f72300c5 HA |
1128 | resp.cqe_version = min_t(__u8, |
1129 | (__u8)MLX5_CAP_GEN(dev->mdev, cqe_version), | |
1130 | req.max_cqe_version); | |
30aa60b3 EC |
1131 | resp.log_uar_size = MLX5_CAP_GEN(dev->mdev, uar_4k) ? |
1132 | MLX5_ADAPTER_PAGE_SHIFT : PAGE_SHIFT; | |
1133 | resp.num_uars_per_page = MLX5_CAP_GEN(dev->mdev, uar_4k) ? | |
1134 | MLX5_CAP_GEN(dev->mdev, num_of_uars_per_page) : 1; | |
b368d7cb MB |
1135 | resp.response_length = min(offsetof(typeof(resp), response_length) + |
1136 | sizeof(resp.response_length), udata->outlen); | |
e126ba97 EC |
1137 | |
1138 | context = kzalloc(sizeof(*context), GFP_KERNEL); | |
1139 | if (!context) | |
1140 | return ERR_PTR(-ENOMEM); | |
1141 | ||
30aa60b3 | 1142 | lib_uar_4k = req.lib_caps & MLX5_LIB_CAP_4K_UAR; |
2f5ff264 | 1143 | bfregi = &context->bfregi; |
b037c29a EC |
1144 | |
1145 | /* updates req->total_num_bfregs */ | |
1146 | err = calc_total_bfregs(dev, lib_uar_4k, &req, &bfregi->num_sys_pages); | |
1147 | if (err) | |
e126ba97 | 1148 | goto out_ctx; |
e126ba97 | 1149 | |
b037c29a EC |
1150 | mutex_init(&bfregi->lock); |
1151 | bfregi->lib_uar_4k = lib_uar_4k; | |
1152 | bfregi->count = kcalloc(req.total_num_bfregs, sizeof(*bfregi->count), | |
e126ba97 | 1153 | GFP_KERNEL); |
b037c29a | 1154 | if (!bfregi->count) { |
e126ba97 | 1155 | err = -ENOMEM; |
b037c29a | 1156 | goto out_ctx; |
e126ba97 EC |
1157 | } |
1158 | ||
b037c29a EC |
1159 | bfregi->sys_pages = kcalloc(bfregi->num_sys_pages, |
1160 | sizeof(*bfregi->sys_pages), | |
1161 | GFP_KERNEL); | |
1162 | if (!bfregi->sys_pages) { | |
e126ba97 | 1163 | err = -ENOMEM; |
b037c29a | 1164 | goto out_count; |
e126ba97 EC |
1165 | } |
1166 | ||
b037c29a EC |
1167 | err = allocate_uars(dev, context); |
1168 | if (err) | |
1169 | goto out_sys_pages; | |
e126ba97 | 1170 | |
b4cfe447 HE |
1171 | #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING |
1172 | context->ibucontext.invalidate_range = &mlx5_ib_invalidate_range; | |
1173 | #endif | |
1174 | ||
7d0cc6ed AK |
1175 | context->upd_xlt_page = __get_free_page(GFP_KERNEL); |
1176 | if (!context->upd_xlt_page) { | |
1177 | err = -ENOMEM; | |
1178 | goto out_uars; | |
1179 | } | |
1180 | mutex_init(&context->upd_xlt_page_mutex); | |
1181 | ||
146d2f1a | 1182 | if (MLX5_CAP_GEN(dev->mdev, log_max_transport_domain)) { |
1183 | err = mlx5_core_alloc_transport_domain(dev->mdev, | |
1184 | &context->tdn); | |
1185 | if (err) | |
7d0cc6ed | 1186 | goto out_page; |
146d2f1a | 1187 | } |
1188 | ||
7c2344c3 | 1189 | INIT_LIST_HEAD(&context->vma_private_list); |
e126ba97 EC |
1190 | INIT_LIST_HEAD(&context->db_page_list); |
1191 | mutex_init(&context->db_page_mutex); | |
1192 | ||
2f5ff264 | 1193 | resp.tot_bfregs = req.total_num_bfregs; |
938fe83c | 1194 | resp.num_ports = MLX5_CAP_GEN(dev->mdev, num_ports); |
b368d7cb | 1195 | |
f72300c5 HA |
1196 | if (field_avail(typeof(resp), cqe_version, udata->outlen)) |
1197 | resp.response_length += sizeof(resp.cqe_version); | |
b368d7cb | 1198 | |
402ca536 | 1199 | if (field_avail(typeof(resp), cmds_supp_uhw, udata->outlen)) { |
6ad279c5 MS |
1200 | resp.cmds_supp_uhw |= MLX5_USER_CMDS_SUPP_UHW_QUERY_DEVICE | |
1201 | MLX5_USER_CMDS_SUPP_UHW_CREATE_AH; | |
402ca536 BW |
1202 | resp.response_length += sizeof(resp.cmds_supp_uhw); |
1203 | } | |
1204 | ||
bc5c6eed NO |
1205 | /* |
1206 | * We don't want to expose information from the PCI bar that is located | |
1207 | * after 4096 bytes, so if the arch only supports larger pages, let's | |
1208 | * pretend we don't support reading the HCA's core clock. This is also | |
1209 | * forced by mmap function. | |
1210 | */ | |
de8d6e02 EC |
1211 | if (field_avail(typeof(resp), hca_core_clock_offset, udata->outlen)) { |
1212 | if (PAGE_SIZE <= 4096) { | |
1213 | resp.comp_mask |= | |
1214 | MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_CORE_CLOCK_OFFSET; | |
1215 | resp.hca_core_clock_offset = | |
1216 | offsetof(struct mlx5_init_seg, internal_timer_h) % PAGE_SIZE; | |
1217 | } | |
f72300c5 | 1218 | resp.response_length += sizeof(resp.hca_core_clock_offset) + |
402ca536 | 1219 | sizeof(resp.reserved2); |
b368d7cb MB |
1220 | } |
1221 | ||
30aa60b3 EC |
1222 | if (field_avail(typeof(resp), log_uar_size, udata->outlen)) |
1223 | resp.response_length += sizeof(resp.log_uar_size); | |
1224 | ||
1225 | if (field_avail(typeof(resp), num_uars_per_page, udata->outlen)) | |
1226 | resp.response_length += sizeof(resp.num_uars_per_page); | |
1227 | ||
b368d7cb | 1228 | err = ib_copy_to_udata(udata, &resp, resp.response_length); |
e126ba97 | 1229 | if (err) |
146d2f1a | 1230 | goto out_td; |
e126ba97 | 1231 | |
2f5ff264 EC |
1232 | bfregi->ver = ver; |
1233 | bfregi->num_low_latency_bfregs = req.num_low_latency_bfregs; | |
f72300c5 | 1234 | context->cqe_version = resp.cqe_version; |
30aa60b3 EC |
1235 | context->lib_caps = req.lib_caps; |
1236 | print_lib_caps(dev, context->lib_caps); | |
f72300c5 | 1237 | |
e126ba97 EC |
1238 | return &context->ibucontext; |
1239 | ||
146d2f1a | 1240 | out_td: |
1241 | if (MLX5_CAP_GEN(dev->mdev, log_max_transport_domain)) | |
1242 | mlx5_core_dealloc_transport_domain(dev->mdev, context->tdn); | |
1243 | ||
7d0cc6ed AK |
1244 | out_page: |
1245 | free_page(context->upd_xlt_page); | |
1246 | ||
e126ba97 | 1247 | out_uars: |
b037c29a | 1248 | deallocate_uars(dev, context); |
e126ba97 | 1249 | |
b037c29a EC |
1250 | out_sys_pages: |
1251 | kfree(bfregi->sys_pages); | |
e126ba97 | 1252 | |
b037c29a EC |
1253 | out_count: |
1254 | kfree(bfregi->count); | |
e126ba97 EC |
1255 | |
1256 | out_ctx: | |
1257 | kfree(context); | |
b037c29a | 1258 | |
e126ba97 EC |
1259 | return ERR_PTR(err); |
1260 | } | |
1261 | ||
1262 | static int mlx5_ib_dealloc_ucontext(struct ib_ucontext *ibcontext) | |
1263 | { | |
1264 | struct mlx5_ib_ucontext *context = to_mucontext(ibcontext); | |
1265 | struct mlx5_ib_dev *dev = to_mdev(ibcontext->device); | |
b037c29a | 1266 | struct mlx5_bfreg_info *bfregi; |
e126ba97 | 1267 | |
b037c29a | 1268 | bfregi = &context->bfregi; |
146d2f1a | 1269 | if (MLX5_CAP_GEN(dev->mdev, log_max_transport_domain)) |
1270 | mlx5_core_dealloc_transport_domain(dev->mdev, context->tdn); | |
1271 | ||
7d0cc6ed | 1272 | free_page(context->upd_xlt_page); |
b037c29a EC |
1273 | deallocate_uars(dev, context); |
1274 | kfree(bfregi->sys_pages); | |
2f5ff264 | 1275 | kfree(bfregi->count); |
e126ba97 EC |
1276 | kfree(context); |
1277 | ||
1278 | return 0; | |
1279 | } | |
1280 | ||
b037c29a EC |
1281 | static phys_addr_t uar_index2pfn(struct mlx5_ib_dev *dev, |
1282 | struct mlx5_bfreg_info *bfregi, | |
1283 | int idx) | |
e126ba97 | 1284 | { |
b037c29a EC |
1285 | int fw_uars_per_page; |
1286 | ||
1287 | fw_uars_per_page = MLX5_CAP_GEN(dev->mdev, uar_4k) ? MLX5_UARS_IN_PAGE : 1; | |
1288 | ||
1289 | return (pci_resource_start(dev->mdev->pdev, 0) >> PAGE_SHIFT) + | |
1290 | bfregi->sys_pages[idx] / fw_uars_per_page; | |
e126ba97 EC |
1291 | } |
1292 | ||
1293 | static int get_command(unsigned long offset) | |
1294 | { | |
1295 | return (offset >> MLX5_IB_MMAP_CMD_SHIFT) & MLX5_IB_MMAP_CMD_MASK; | |
1296 | } | |
1297 | ||
1298 | static int get_arg(unsigned long offset) | |
1299 | { | |
1300 | return offset & ((1 << MLX5_IB_MMAP_CMD_SHIFT) - 1); | |
1301 | } | |
1302 | ||
1303 | static int get_index(unsigned long offset) | |
1304 | { | |
1305 | return get_arg(offset); | |
1306 | } | |
1307 | ||
7c2344c3 MG |
1308 | static void mlx5_ib_vma_open(struct vm_area_struct *area) |
1309 | { | |
1310 | /* vma_open is called when a new VMA is created on top of our VMA. This | |
1311 | * is done through either mremap flow or split_vma (usually due to | |
1312 | * mlock, madvise, munmap, etc.) We do not support a clone of the VMA, | |
1313 | * as this VMA is strongly hardware related. Therefore we set the | |
1314 | * vm_ops of the newly created/cloned VMA to NULL, to prevent it from | |
1315 | * calling us again and trying to do incorrect actions. We assume that | |
1316 | * the original VMA size is exactly a single page, and therefore all | |
1317 | * "splitting" operation will not happen to it. | |
1318 | */ | |
1319 | area->vm_ops = NULL; | |
1320 | } | |
1321 | ||
1322 | static void mlx5_ib_vma_close(struct vm_area_struct *area) | |
1323 | { | |
1324 | struct mlx5_ib_vma_private_data *mlx5_ib_vma_priv_data; | |
1325 | ||
1326 | /* It's guaranteed that all VMAs opened on a FD are closed before the | |
1327 | * file itself is closed, therefore no sync is needed with the regular | |
1328 | * closing flow. (e.g. mlx5 ib_dealloc_ucontext) | |
1329 | * However need a sync with accessing the vma as part of | |
1330 | * mlx5_ib_disassociate_ucontext. | |
1331 | * The close operation is usually called under mm->mmap_sem except when | |
1332 | * process is exiting. | |
1333 | * The exiting case is handled explicitly as part of | |
1334 | * mlx5_ib_disassociate_ucontext. | |
1335 | */ | |
1336 | mlx5_ib_vma_priv_data = (struct mlx5_ib_vma_private_data *)area->vm_private_data; | |
1337 | ||
1338 | /* setting the vma context pointer to null in the mlx5_ib driver's | |
1339 | * private data, to protect a race condition in | |
1340 | * mlx5_ib_disassociate_ucontext(). | |
1341 | */ | |
1342 | mlx5_ib_vma_priv_data->vma = NULL; | |
1343 | list_del(&mlx5_ib_vma_priv_data->list); | |
1344 | kfree(mlx5_ib_vma_priv_data); | |
1345 | } | |
1346 | ||
1347 | static const struct vm_operations_struct mlx5_ib_vm_ops = { | |
1348 | .open = mlx5_ib_vma_open, | |
1349 | .close = mlx5_ib_vma_close | |
1350 | }; | |
1351 | ||
1352 | static int mlx5_ib_set_vma_data(struct vm_area_struct *vma, | |
1353 | struct mlx5_ib_ucontext *ctx) | |
1354 | { | |
1355 | struct mlx5_ib_vma_private_data *vma_prv; | |
1356 | struct list_head *vma_head = &ctx->vma_private_list; | |
1357 | ||
1358 | vma_prv = kzalloc(sizeof(*vma_prv), GFP_KERNEL); | |
1359 | if (!vma_prv) | |
1360 | return -ENOMEM; | |
1361 | ||
1362 | vma_prv->vma = vma; | |
1363 | vma->vm_private_data = vma_prv; | |
1364 | vma->vm_ops = &mlx5_ib_vm_ops; | |
1365 | ||
1366 | list_add(&vma_prv->list, vma_head); | |
1367 | ||
1368 | return 0; | |
1369 | } | |
1370 | ||
1371 | static void mlx5_ib_disassociate_ucontext(struct ib_ucontext *ibcontext) | |
1372 | { | |
1373 | int ret; | |
1374 | struct vm_area_struct *vma; | |
1375 | struct mlx5_ib_vma_private_data *vma_private, *n; | |
1376 | struct mlx5_ib_ucontext *context = to_mucontext(ibcontext); | |
1377 | struct task_struct *owning_process = NULL; | |
1378 | struct mm_struct *owning_mm = NULL; | |
1379 | ||
1380 | owning_process = get_pid_task(ibcontext->tgid, PIDTYPE_PID); | |
1381 | if (!owning_process) | |
1382 | return; | |
1383 | ||
1384 | owning_mm = get_task_mm(owning_process); | |
1385 | if (!owning_mm) { | |
1386 | pr_info("no mm, disassociate ucontext is pending task termination\n"); | |
1387 | while (1) { | |
1388 | put_task_struct(owning_process); | |
1389 | usleep_range(1000, 2000); | |
1390 | owning_process = get_pid_task(ibcontext->tgid, | |
1391 | PIDTYPE_PID); | |
1392 | if (!owning_process || | |
1393 | owning_process->state == TASK_DEAD) { | |
1394 | pr_info("disassociate ucontext done, task was terminated\n"); | |
1395 | /* in case task was dead need to release the | |
1396 | * task struct. | |
1397 | */ | |
1398 | if (owning_process) | |
1399 | put_task_struct(owning_process); | |
1400 | return; | |
1401 | } | |
1402 | } | |
1403 | } | |
1404 | ||
1405 | /* need to protect from a race on closing the vma as part of | |
1406 | * mlx5_ib_vma_close. | |
1407 | */ | |
1408 | down_read(&owning_mm->mmap_sem); | |
1409 | list_for_each_entry_safe(vma_private, n, &context->vma_private_list, | |
1410 | list) { | |
1411 | vma = vma_private->vma; | |
1412 | ret = zap_vma_ptes(vma, vma->vm_start, | |
1413 | PAGE_SIZE); | |
1414 | WARN_ONCE(ret, "%s: zap_vma_ptes failed", __func__); | |
1415 | /* context going to be destroyed, should | |
1416 | * not access ops any more. | |
1417 | */ | |
1418 | vma->vm_ops = NULL; | |
1419 | list_del(&vma_private->list); | |
1420 | kfree(vma_private); | |
1421 | } | |
1422 | up_read(&owning_mm->mmap_sem); | |
1423 | mmput(owning_mm); | |
1424 | put_task_struct(owning_process); | |
1425 | } | |
1426 | ||
37aa5c36 GL |
1427 | static inline char *mmap_cmd2str(enum mlx5_ib_mmap_cmd cmd) |
1428 | { | |
1429 | switch (cmd) { | |
1430 | case MLX5_IB_MMAP_WC_PAGE: | |
1431 | return "WC"; | |
1432 | case MLX5_IB_MMAP_REGULAR_PAGE: | |
1433 | return "best effort WC"; | |
1434 | case MLX5_IB_MMAP_NC_PAGE: | |
1435 | return "NC"; | |
1436 | default: | |
1437 | return NULL; | |
1438 | } | |
1439 | } | |
1440 | ||
1441 | static int uar_mmap(struct mlx5_ib_dev *dev, enum mlx5_ib_mmap_cmd cmd, | |
7c2344c3 MG |
1442 | struct vm_area_struct *vma, |
1443 | struct mlx5_ib_ucontext *context) | |
37aa5c36 | 1444 | { |
2f5ff264 | 1445 | struct mlx5_bfreg_info *bfregi = &context->bfregi; |
37aa5c36 GL |
1446 | int err; |
1447 | unsigned long idx; | |
1448 | phys_addr_t pfn, pa; | |
1449 | pgprot_t prot; | |
b037c29a EC |
1450 | int uars_per_page; |
1451 | ||
1452 | if (vma->vm_end - vma->vm_start != PAGE_SIZE) | |
1453 | return -EINVAL; | |
1454 | ||
1455 | uars_per_page = get_uars_per_sys_page(dev, bfregi->lib_uar_4k); | |
1456 | idx = get_index(vma->vm_pgoff); | |
1457 | if (idx % uars_per_page || | |
1458 | idx * uars_per_page >= bfregi->num_sys_pages) { | |
1459 | mlx5_ib_warn(dev, "invalid uar index %lu\n", idx); | |
1460 | return -EINVAL; | |
1461 | } | |
37aa5c36 GL |
1462 | |
1463 | switch (cmd) { | |
1464 | case MLX5_IB_MMAP_WC_PAGE: | |
1465 | /* Some architectures don't support WC memory */ | |
1466 | #if defined(CONFIG_X86) | |
1467 | if (!pat_enabled()) | |
1468 | return -EPERM; | |
1469 | #elif !(defined(CONFIG_PPC) || (defined(CONFIG_ARM) && defined(CONFIG_MMU))) | |
1470 | return -EPERM; | |
1471 | #endif | |
1472 | /* fall through */ | |
1473 | case MLX5_IB_MMAP_REGULAR_PAGE: | |
1474 | /* For MLX5_IB_MMAP_REGULAR_PAGE do the best effort to get WC */ | |
1475 | prot = pgprot_writecombine(vma->vm_page_prot); | |
1476 | break; | |
1477 | case MLX5_IB_MMAP_NC_PAGE: | |
1478 | prot = pgprot_noncached(vma->vm_page_prot); | |
1479 | break; | |
1480 | default: | |
1481 | return -EINVAL; | |
1482 | } | |
1483 | ||
b037c29a | 1484 | pfn = uar_index2pfn(dev, bfregi, idx); |
37aa5c36 GL |
1485 | mlx5_ib_dbg(dev, "uar idx 0x%lx, pfn %pa\n", idx, &pfn); |
1486 | ||
1487 | vma->vm_page_prot = prot; | |
1488 | err = io_remap_pfn_range(vma, vma->vm_start, pfn, | |
1489 | PAGE_SIZE, vma->vm_page_prot); | |
1490 | if (err) { | |
1491 | mlx5_ib_err(dev, "io_remap_pfn_range failed with error=%d, vm_start=0x%lx, pfn=%pa, mmap_cmd=%s\n", | |
1492 | err, vma->vm_start, &pfn, mmap_cmd2str(cmd)); | |
1493 | return -EAGAIN; | |
1494 | } | |
1495 | ||
1496 | pa = pfn << PAGE_SHIFT; | |
1497 | mlx5_ib_dbg(dev, "mapped %s at 0x%lx, PA %pa\n", mmap_cmd2str(cmd), | |
1498 | vma->vm_start, &pa); | |
1499 | ||
7c2344c3 | 1500 | return mlx5_ib_set_vma_data(vma, context); |
37aa5c36 GL |
1501 | } |
1502 | ||
e126ba97 EC |
1503 | static int mlx5_ib_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vma) |
1504 | { | |
1505 | struct mlx5_ib_ucontext *context = to_mucontext(ibcontext); | |
1506 | struct mlx5_ib_dev *dev = to_mdev(ibcontext->device); | |
e126ba97 | 1507 | unsigned long command; |
e126ba97 EC |
1508 | phys_addr_t pfn; |
1509 | ||
1510 | command = get_command(vma->vm_pgoff); | |
1511 | switch (command) { | |
37aa5c36 GL |
1512 | case MLX5_IB_MMAP_WC_PAGE: |
1513 | case MLX5_IB_MMAP_NC_PAGE: | |
e126ba97 | 1514 | case MLX5_IB_MMAP_REGULAR_PAGE: |
7c2344c3 | 1515 | return uar_mmap(dev, command, vma, context); |
e126ba97 EC |
1516 | |
1517 | case MLX5_IB_MMAP_GET_CONTIGUOUS_PAGES: | |
1518 | return -ENOSYS; | |
1519 | ||
d69e3bcf | 1520 | case MLX5_IB_MMAP_CORE_CLOCK: |
d69e3bcf MB |
1521 | if (vma->vm_end - vma->vm_start != PAGE_SIZE) |
1522 | return -EINVAL; | |
1523 | ||
6cbac1e4 | 1524 | if (vma->vm_flags & VM_WRITE) |
d69e3bcf MB |
1525 | return -EPERM; |
1526 | ||
1527 | /* Don't expose to user-space information it shouldn't have */ | |
1528 | if (PAGE_SIZE > 4096) | |
1529 | return -EOPNOTSUPP; | |
1530 | ||
1531 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | |
1532 | pfn = (dev->mdev->iseg_base + | |
1533 | offsetof(struct mlx5_init_seg, internal_timer_h)) >> | |
1534 | PAGE_SHIFT; | |
1535 | if (io_remap_pfn_range(vma, vma->vm_start, pfn, | |
1536 | PAGE_SIZE, vma->vm_page_prot)) | |
1537 | return -EAGAIN; | |
1538 | ||
1539 | mlx5_ib_dbg(dev, "mapped internal timer at 0x%lx, PA 0x%llx\n", | |
1540 | vma->vm_start, | |
1541 | (unsigned long long)pfn << PAGE_SHIFT); | |
1542 | break; | |
d69e3bcf | 1543 | |
e126ba97 EC |
1544 | default: |
1545 | return -EINVAL; | |
1546 | } | |
1547 | ||
1548 | return 0; | |
1549 | } | |
1550 | ||
e126ba97 EC |
1551 | static struct ib_pd *mlx5_ib_alloc_pd(struct ib_device *ibdev, |
1552 | struct ib_ucontext *context, | |
1553 | struct ib_udata *udata) | |
1554 | { | |
1555 | struct mlx5_ib_alloc_pd_resp resp; | |
1556 | struct mlx5_ib_pd *pd; | |
1557 | int err; | |
1558 | ||
1559 | pd = kmalloc(sizeof(*pd), GFP_KERNEL); | |
1560 | if (!pd) | |
1561 | return ERR_PTR(-ENOMEM); | |
1562 | ||
9603b61d | 1563 | err = mlx5_core_alloc_pd(to_mdev(ibdev)->mdev, &pd->pdn); |
e126ba97 EC |
1564 | if (err) { |
1565 | kfree(pd); | |
1566 | return ERR_PTR(err); | |
1567 | } | |
1568 | ||
1569 | if (context) { | |
1570 | resp.pdn = pd->pdn; | |
1571 | if (ib_copy_to_udata(udata, &resp, sizeof(resp))) { | |
9603b61d | 1572 | mlx5_core_dealloc_pd(to_mdev(ibdev)->mdev, pd->pdn); |
e126ba97 EC |
1573 | kfree(pd); |
1574 | return ERR_PTR(-EFAULT); | |
1575 | } | |
e126ba97 EC |
1576 | } |
1577 | ||
1578 | return &pd->ibpd; | |
1579 | } | |
1580 | ||
1581 | static int mlx5_ib_dealloc_pd(struct ib_pd *pd) | |
1582 | { | |
1583 | struct mlx5_ib_dev *mdev = to_mdev(pd->device); | |
1584 | struct mlx5_ib_pd *mpd = to_mpd(pd); | |
1585 | ||
9603b61d | 1586 | mlx5_core_dealloc_pd(mdev->mdev, mpd->pdn); |
e126ba97 EC |
1587 | kfree(mpd); |
1588 | ||
1589 | return 0; | |
1590 | } | |
1591 | ||
466fa6d2 MG |
1592 | enum { |
1593 | MATCH_CRITERIA_ENABLE_OUTER_BIT, | |
1594 | MATCH_CRITERIA_ENABLE_MISC_BIT, | |
1595 | MATCH_CRITERIA_ENABLE_INNER_BIT | |
1596 | }; | |
1597 | ||
1598 | #define HEADER_IS_ZERO(match_criteria, headers) \ | |
1599 | !(memchr_inv(MLX5_ADDR_OF(fte_match_param, match_criteria, headers), \ | |
1600 | 0, MLX5_FLD_SZ_BYTES(fte_match_param, headers))) \ | |
038d2ef8 | 1601 | |
466fa6d2 | 1602 | static u8 get_match_criteria_enable(u32 *match_criteria) |
038d2ef8 | 1603 | { |
466fa6d2 | 1604 | u8 match_criteria_enable; |
038d2ef8 | 1605 | |
466fa6d2 MG |
1606 | match_criteria_enable = |
1607 | (!HEADER_IS_ZERO(match_criteria, outer_headers)) << | |
1608 | MATCH_CRITERIA_ENABLE_OUTER_BIT; | |
1609 | match_criteria_enable |= | |
1610 | (!HEADER_IS_ZERO(match_criteria, misc_parameters)) << | |
1611 | MATCH_CRITERIA_ENABLE_MISC_BIT; | |
1612 | match_criteria_enable |= | |
1613 | (!HEADER_IS_ZERO(match_criteria, inner_headers)) << | |
1614 | MATCH_CRITERIA_ENABLE_INNER_BIT; | |
1615 | ||
1616 | return match_criteria_enable; | |
038d2ef8 MG |
1617 | } |
1618 | ||
ca0d4753 MG |
1619 | static void set_proto(void *outer_c, void *outer_v, u8 mask, u8 val) |
1620 | { | |
1621 | MLX5_SET(fte_match_set_lyr_2_4, outer_c, ip_protocol, mask); | |
1622 | MLX5_SET(fte_match_set_lyr_2_4, outer_v, ip_protocol, val); | |
038d2ef8 MG |
1623 | } |
1624 | ||
2d1e697e MR |
1625 | static void set_flow_label(void *misc_c, void *misc_v, u8 mask, u8 val, |
1626 | bool inner) | |
1627 | { | |
1628 | if (inner) { | |
1629 | MLX5_SET(fte_match_set_misc, | |
1630 | misc_c, inner_ipv6_flow_label, mask); | |
1631 | MLX5_SET(fte_match_set_misc, | |
1632 | misc_v, inner_ipv6_flow_label, val); | |
1633 | } else { | |
1634 | MLX5_SET(fte_match_set_misc, | |
1635 | misc_c, outer_ipv6_flow_label, mask); | |
1636 | MLX5_SET(fte_match_set_misc, | |
1637 | misc_v, outer_ipv6_flow_label, val); | |
1638 | } | |
1639 | } | |
1640 | ||
ca0d4753 MG |
1641 | static void set_tos(void *outer_c, void *outer_v, u8 mask, u8 val) |
1642 | { | |
1643 | MLX5_SET(fte_match_set_lyr_2_4, outer_c, ip_ecn, mask); | |
1644 | MLX5_SET(fte_match_set_lyr_2_4, outer_v, ip_ecn, val); | |
1645 | MLX5_SET(fte_match_set_lyr_2_4, outer_c, ip_dscp, mask >> 2); | |
1646 | MLX5_SET(fte_match_set_lyr_2_4, outer_v, ip_dscp, val >> 2); | |
1647 | } | |
1648 | ||
c47ac6ae MG |
1649 | #define LAST_ETH_FIELD vlan_tag |
1650 | #define LAST_IB_FIELD sl | |
ca0d4753 | 1651 | #define LAST_IPV4_FIELD tos |
466fa6d2 | 1652 | #define LAST_IPV6_FIELD traffic_class |
c47ac6ae | 1653 | #define LAST_TCP_UDP_FIELD src_port |
ffb30d8f | 1654 | #define LAST_TUNNEL_FIELD tunnel_id |
c47ac6ae MG |
1655 | |
1656 | /* Field is the last supported field */ | |
1657 | #define FIELDS_NOT_SUPPORTED(filter, field)\ | |
1658 | memchr_inv((void *)&filter.field +\ | |
1659 | sizeof(filter.field), 0,\ | |
1660 | sizeof(filter) -\ | |
1661 | offsetof(typeof(filter), field) -\ | |
1662 | sizeof(filter.field)) | |
1663 | ||
038d2ef8 | 1664 | static int parse_flow_attr(u32 *match_c, u32 *match_v, |
dd063d0e | 1665 | const union ib_flow_spec *ib_spec) |
038d2ef8 | 1666 | { |
466fa6d2 MG |
1667 | void *misc_params_c = MLX5_ADDR_OF(fte_match_param, match_c, |
1668 | misc_parameters); | |
1669 | void *misc_params_v = MLX5_ADDR_OF(fte_match_param, match_v, | |
1670 | misc_parameters); | |
2d1e697e MR |
1671 | void *headers_c; |
1672 | void *headers_v; | |
1673 | ||
1674 | if (ib_spec->type & IB_FLOW_SPEC_INNER) { | |
1675 | headers_c = MLX5_ADDR_OF(fte_match_param, match_c, | |
1676 | inner_headers); | |
1677 | headers_v = MLX5_ADDR_OF(fte_match_param, match_v, | |
1678 | inner_headers); | |
1679 | } else { | |
1680 | headers_c = MLX5_ADDR_OF(fte_match_param, match_c, | |
1681 | outer_headers); | |
1682 | headers_v = MLX5_ADDR_OF(fte_match_param, match_v, | |
1683 | outer_headers); | |
1684 | } | |
466fa6d2 | 1685 | |
2d1e697e | 1686 | switch (ib_spec->type & ~IB_FLOW_SPEC_INNER) { |
038d2ef8 | 1687 | case IB_FLOW_SPEC_ETH: |
c47ac6ae MG |
1688 | if (FIELDS_NOT_SUPPORTED(ib_spec->eth.mask, LAST_ETH_FIELD)) |
1689 | return -ENOTSUPP; | |
038d2ef8 | 1690 | |
2d1e697e | 1691 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, |
038d2ef8 MG |
1692 | dmac_47_16), |
1693 | ib_spec->eth.mask.dst_mac); | |
2d1e697e | 1694 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, |
038d2ef8 MG |
1695 | dmac_47_16), |
1696 | ib_spec->eth.val.dst_mac); | |
1697 | ||
2d1e697e | 1698 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, |
ee3da804 MG |
1699 | smac_47_16), |
1700 | ib_spec->eth.mask.src_mac); | |
2d1e697e | 1701 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, |
ee3da804 MG |
1702 | smac_47_16), |
1703 | ib_spec->eth.val.src_mac); | |
1704 | ||
038d2ef8 | 1705 | if (ib_spec->eth.mask.vlan_tag) { |
2d1e697e | 1706 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, |
10543365 | 1707 | cvlan_tag, 1); |
2d1e697e | 1708 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, |
10543365 | 1709 | cvlan_tag, 1); |
038d2ef8 | 1710 | |
2d1e697e | 1711 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, |
038d2ef8 | 1712 | first_vid, ntohs(ib_spec->eth.mask.vlan_tag)); |
2d1e697e | 1713 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, |
038d2ef8 MG |
1714 | first_vid, ntohs(ib_spec->eth.val.vlan_tag)); |
1715 | ||
2d1e697e | 1716 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, |
038d2ef8 MG |
1717 | first_cfi, |
1718 | ntohs(ib_spec->eth.mask.vlan_tag) >> 12); | |
2d1e697e | 1719 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, |
038d2ef8 MG |
1720 | first_cfi, |
1721 | ntohs(ib_spec->eth.val.vlan_tag) >> 12); | |
1722 | ||
2d1e697e | 1723 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, |
038d2ef8 MG |
1724 | first_prio, |
1725 | ntohs(ib_spec->eth.mask.vlan_tag) >> 13); | |
2d1e697e | 1726 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, |
038d2ef8 MG |
1727 | first_prio, |
1728 | ntohs(ib_spec->eth.val.vlan_tag) >> 13); | |
1729 | } | |
2d1e697e | 1730 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, |
038d2ef8 | 1731 | ethertype, ntohs(ib_spec->eth.mask.ether_type)); |
2d1e697e | 1732 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, |
038d2ef8 MG |
1733 | ethertype, ntohs(ib_spec->eth.val.ether_type)); |
1734 | break; | |
1735 | case IB_FLOW_SPEC_IPV4: | |
c47ac6ae MG |
1736 | if (FIELDS_NOT_SUPPORTED(ib_spec->ipv4.mask, LAST_IPV4_FIELD)) |
1737 | return -ENOTSUPP; | |
038d2ef8 | 1738 | |
2d1e697e | 1739 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, |
038d2ef8 | 1740 | ethertype, 0xffff); |
2d1e697e | 1741 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, |
038d2ef8 MG |
1742 | ethertype, ETH_P_IP); |
1743 | ||
2d1e697e | 1744 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, |
038d2ef8 MG |
1745 | src_ipv4_src_ipv6.ipv4_layout.ipv4), |
1746 | &ib_spec->ipv4.mask.src_ip, | |
1747 | sizeof(ib_spec->ipv4.mask.src_ip)); | |
2d1e697e | 1748 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, |
038d2ef8 MG |
1749 | src_ipv4_src_ipv6.ipv4_layout.ipv4), |
1750 | &ib_spec->ipv4.val.src_ip, | |
1751 | sizeof(ib_spec->ipv4.val.src_ip)); | |
2d1e697e | 1752 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, |
038d2ef8 MG |
1753 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4), |
1754 | &ib_spec->ipv4.mask.dst_ip, | |
1755 | sizeof(ib_spec->ipv4.mask.dst_ip)); | |
2d1e697e | 1756 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, |
038d2ef8 MG |
1757 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4), |
1758 | &ib_spec->ipv4.val.dst_ip, | |
1759 | sizeof(ib_spec->ipv4.val.dst_ip)); | |
ca0d4753 | 1760 | |
2d1e697e | 1761 | set_tos(headers_c, headers_v, |
ca0d4753 MG |
1762 | ib_spec->ipv4.mask.tos, ib_spec->ipv4.val.tos); |
1763 | ||
2d1e697e | 1764 | set_proto(headers_c, headers_v, |
ca0d4753 | 1765 | ib_spec->ipv4.mask.proto, ib_spec->ipv4.val.proto); |
038d2ef8 | 1766 | break; |
026bae0c | 1767 | case IB_FLOW_SPEC_IPV6: |
c47ac6ae MG |
1768 | if (FIELDS_NOT_SUPPORTED(ib_spec->ipv6.mask, LAST_IPV6_FIELD)) |
1769 | return -ENOTSUPP; | |
026bae0c | 1770 | |
2d1e697e | 1771 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, |
026bae0c | 1772 | ethertype, 0xffff); |
2d1e697e | 1773 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, |
026bae0c MG |
1774 | ethertype, ETH_P_IPV6); |
1775 | ||
2d1e697e | 1776 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, |
026bae0c MG |
1777 | src_ipv4_src_ipv6.ipv6_layout.ipv6), |
1778 | &ib_spec->ipv6.mask.src_ip, | |
1779 | sizeof(ib_spec->ipv6.mask.src_ip)); | |
2d1e697e | 1780 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, |
026bae0c MG |
1781 | src_ipv4_src_ipv6.ipv6_layout.ipv6), |
1782 | &ib_spec->ipv6.val.src_ip, | |
1783 | sizeof(ib_spec->ipv6.val.src_ip)); | |
2d1e697e | 1784 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, |
026bae0c MG |
1785 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), |
1786 | &ib_spec->ipv6.mask.dst_ip, | |
1787 | sizeof(ib_spec->ipv6.mask.dst_ip)); | |
2d1e697e | 1788 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, |
026bae0c MG |
1789 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), |
1790 | &ib_spec->ipv6.val.dst_ip, | |
1791 | sizeof(ib_spec->ipv6.val.dst_ip)); | |
466fa6d2 | 1792 | |
2d1e697e | 1793 | set_tos(headers_c, headers_v, |
466fa6d2 MG |
1794 | ib_spec->ipv6.mask.traffic_class, |
1795 | ib_spec->ipv6.val.traffic_class); | |
1796 | ||
2d1e697e | 1797 | set_proto(headers_c, headers_v, |
466fa6d2 MG |
1798 | ib_spec->ipv6.mask.next_hdr, |
1799 | ib_spec->ipv6.val.next_hdr); | |
1800 | ||
2d1e697e MR |
1801 | set_flow_label(misc_params_c, misc_params_v, |
1802 | ntohl(ib_spec->ipv6.mask.flow_label), | |
1803 | ntohl(ib_spec->ipv6.val.flow_label), | |
1804 | ib_spec->type & IB_FLOW_SPEC_INNER); | |
1805 | ||
026bae0c | 1806 | break; |
038d2ef8 | 1807 | case IB_FLOW_SPEC_TCP: |
c47ac6ae MG |
1808 | if (FIELDS_NOT_SUPPORTED(ib_spec->tcp_udp.mask, |
1809 | LAST_TCP_UDP_FIELD)) | |
1810 | return -ENOTSUPP; | |
038d2ef8 | 1811 | |
2d1e697e | 1812 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_protocol, |
038d2ef8 | 1813 | 0xff); |
2d1e697e | 1814 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, |
038d2ef8 MG |
1815 | IPPROTO_TCP); |
1816 | ||
2d1e697e | 1817 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, tcp_sport, |
038d2ef8 | 1818 | ntohs(ib_spec->tcp_udp.mask.src_port)); |
2d1e697e | 1819 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, tcp_sport, |
038d2ef8 MG |
1820 | ntohs(ib_spec->tcp_udp.val.src_port)); |
1821 | ||
2d1e697e | 1822 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, tcp_dport, |
038d2ef8 | 1823 | ntohs(ib_spec->tcp_udp.mask.dst_port)); |
2d1e697e | 1824 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, tcp_dport, |
038d2ef8 MG |
1825 | ntohs(ib_spec->tcp_udp.val.dst_port)); |
1826 | break; | |
1827 | case IB_FLOW_SPEC_UDP: | |
c47ac6ae MG |
1828 | if (FIELDS_NOT_SUPPORTED(ib_spec->tcp_udp.mask, |
1829 | LAST_TCP_UDP_FIELD)) | |
1830 | return -ENOTSUPP; | |
038d2ef8 | 1831 | |
2d1e697e | 1832 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_protocol, |
038d2ef8 | 1833 | 0xff); |
2d1e697e | 1834 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, |
038d2ef8 MG |
1835 | IPPROTO_UDP); |
1836 | ||
2d1e697e | 1837 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, udp_sport, |
038d2ef8 | 1838 | ntohs(ib_spec->tcp_udp.mask.src_port)); |
2d1e697e | 1839 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, udp_sport, |
038d2ef8 MG |
1840 | ntohs(ib_spec->tcp_udp.val.src_port)); |
1841 | ||
2d1e697e | 1842 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, udp_dport, |
038d2ef8 | 1843 | ntohs(ib_spec->tcp_udp.mask.dst_port)); |
2d1e697e | 1844 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, udp_dport, |
038d2ef8 MG |
1845 | ntohs(ib_spec->tcp_udp.val.dst_port)); |
1846 | break; | |
ffb30d8f MR |
1847 | case IB_FLOW_SPEC_VXLAN_TUNNEL: |
1848 | if (FIELDS_NOT_SUPPORTED(ib_spec->tunnel.mask, | |
1849 | LAST_TUNNEL_FIELD)) | |
1850 | return -ENOTSUPP; | |
1851 | ||
1852 | MLX5_SET(fte_match_set_misc, misc_params_c, vxlan_vni, | |
1853 | ntohl(ib_spec->tunnel.mask.tunnel_id)); | |
1854 | MLX5_SET(fte_match_set_misc, misc_params_v, vxlan_vni, | |
1855 | ntohl(ib_spec->tunnel.val.tunnel_id)); | |
1856 | break; | |
038d2ef8 MG |
1857 | default: |
1858 | return -EINVAL; | |
1859 | } | |
1860 | ||
1861 | return 0; | |
1862 | } | |
1863 | ||
1864 | /* If a flow could catch both multicast and unicast packets, | |
1865 | * it won't fall into the multicast flow steering table and this rule | |
1866 | * could steal other multicast packets. | |
1867 | */ | |
1868 | static bool flow_is_multicast_only(struct ib_flow_attr *ib_attr) | |
1869 | { | |
1870 | struct ib_flow_spec_eth *eth_spec; | |
1871 | ||
1872 | if (ib_attr->type != IB_FLOW_ATTR_NORMAL || | |
1873 | ib_attr->size < sizeof(struct ib_flow_attr) + | |
1874 | sizeof(struct ib_flow_spec_eth) || | |
1875 | ib_attr->num_of_specs < 1) | |
1876 | return false; | |
1877 | ||
1878 | eth_spec = (struct ib_flow_spec_eth *)(ib_attr + 1); | |
1879 | if (eth_spec->type != IB_FLOW_SPEC_ETH || | |
1880 | eth_spec->size != sizeof(*eth_spec)) | |
1881 | return false; | |
1882 | ||
1883 | return is_multicast_ether_addr(eth_spec->mask.dst_mac) && | |
1884 | is_multicast_ether_addr(eth_spec->val.dst_mac); | |
1885 | } | |
1886 | ||
dd063d0e | 1887 | static bool is_valid_attr(const struct ib_flow_attr *flow_attr) |
038d2ef8 MG |
1888 | { |
1889 | union ib_flow_spec *ib_spec = (union ib_flow_spec *)(flow_attr + 1); | |
1890 | bool has_ipv4_spec = false; | |
1891 | bool eth_type_ipv4 = true; | |
1892 | unsigned int spec_index; | |
1893 | ||
1894 | /* Validate that ethertype is correct */ | |
1895 | for (spec_index = 0; spec_index < flow_attr->num_of_specs; spec_index++) { | |
1896 | if (ib_spec->type == IB_FLOW_SPEC_ETH && | |
1897 | ib_spec->eth.mask.ether_type) { | |
1898 | if (!((ib_spec->eth.mask.ether_type == htons(0xffff)) && | |
1899 | ib_spec->eth.val.ether_type == htons(ETH_P_IP))) | |
1900 | eth_type_ipv4 = false; | |
1901 | } else if (ib_spec->type == IB_FLOW_SPEC_IPV4) { | |
1902 | has_ipv4_spec = true; | |
1903 | } | |
1904 | ib_spec = (void *)ib_spec + ib_spec->size; | |
1905 | } | |
1906 | return !has_ipv4_spec || eth_type_ipv4; | |
1907 | } | |
1908 | ||
1909 | static void put_flow_table(struct mlx5_ib_dev *dev, | |
1910 | struct mlx5_ib_flow_prio *prio, bool ft_added) | |
1911 | { | |
1912 | prio->refcount -= !!ft_added; | |
1913 | if (!prio->refcount) { | |
1914 | mlx5_destroy_flow_table(prio->flow_table); | |
1915 | prio->flow_table = NULL; | |
1916 | } | |
1917 | } | |
1918 | ||
1919 | static int mlx5_ib_destroy_flow(struct ib_flow *flow_id) | |
1920 | { | |
1921 | struct mlx5_ib_dev *dev = to_mdev(flow_id->qp->device); | |
1922 | struct mlx5_ib_flow_handler *handler = container_of(flow_id, | |
1923 | struct mlx5_ib_flow_handler, | |
1924 | ibflow); | |
1925 | struct mlx5_ib_flow_handler *iter, *tmp; | |
1926 | ||
1927 | mutex_lock(&dev->flow_db.lock); | |
1928 | ||
1929 | list_for_each_entry_safe(iter, tmp, &handler->list, list) { | |
74491de9 | 1930 | mlx5_del_flow_rules(iter->rule); |
cc0e5d42 | 1931 | put_flow_table(dev, iter->prio, true); |
038d2ef8 MG |
1932 | list_del(&iter->list); |
1933 | kfree(iter); | |
1934 | } | |
1935 | ||
74491de9 | 1936 | mlx5_del_flow_rules(handler->rule); |
5497adc6 | 1937 | put_flow_table(dev, handler->prio, true); |
038d2ef8 MG |
1938 | mutex_unlock(&dev->flow_db.lock); |
1939 | ||
1940 | kfree(handler); | |
1941 | ||
1942 | return 0; | |
1943 | } | |
1944 | ||
35d19011 MG |
1945 | static int ib_prio_to_core_prio(unsigned int priority, bool dont_trap) |
1946 | { | |
1947 | priority *= 2; | |
1948 | if (!dont_trap) | |
1949 | priority++; | |
1950 | return priority; | |
1951 | } | |
1952 | ||
cc0e5d42 MG |
1953 | enum flow_table_type { |
1954 | MLX5_IB_FT_RX, | |
1955 | MLX5_IB_FT_TX | |
1956 | }; | |
1957 | ||
038d2ef8 MG |
1958 | #define MLX5_FS_MAX_TYPES 10 |
1959 | #define MLX5_FS_MAX_ENTRIES 32000UL | |
1960 | static struct mlx5_ib_flow_prio *get_flow_table(struct mlx5_ib_dev *dev, | |
cc0e5d42 MG |
1961 | struct ib_flow_attr *flow_attr, |
1962 | enum flow_table_type ft_type) | |
038d2ef8 | 1963 | { |
35d19011 | 1964 | bool dont_trap = flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP; |
038d2ef8 MG |
1965 | struct mlx5_flow_namespace *ns = NULL; |
1966 | struct mlx5_ib_flow_prio *prio; | |
1967 | struct mlx5_flow_table *ft; | |
1968 | int num_entries; | |
1969 | int num_groups; | |
1970 | int priority; | |
1971 | int err = 0; | |
1972 | ||
1973 | if (flow_attr->type == IB_FLOW_ATTR_NORMAL) { | |
35d19011 MG |
1974 | if (flow_is_multicast_only(flow_attr) && |
1975 | !dont_trap) | |
038d2ef8 MG |
1976 | priority = MLX5_IB_FLOW_MCAST_PRIO; |
1977 | else | |
35d19011 MG |
1978 | priority = ib_prio_to_core_prio(flow_attr->priority, |
1979 | dont_trap); | |
038d2ef8 MG |
1980 | ns = mlx5_get_flow_namespace(dev->mdev, |
1981 | MLX5_FLOW_NAMESPACE_BYPASS); | |
1982 | num_entries = MLX5_FS_MAX_ENTRIES; | |
1983 | num_groups = MLX5_FS_MAX_TYPES; | |
1984 | prio = &dev->flow_db.prios[priority]; | |
1985 | } else if (flow_attr->type == IB_FLOW_ATTR_ALL_DEFAULT || | |
1986 | flow_attr->type == IB_FLOW_ATTR_MC_DEFAULT) { | |
1987 | ns = mlx5_get_flow_namespace(dev->mdev, | |
1988 | MLX5_FLOW_NAMESPACE_LEFTOVERS); | |
1989 | build_leftovers_ft_param(&priority, | |
1990 | &num_entries, | |
1991 | &num_groups); | |
1992 | prio = &dev->flow_db.prios[MLX5_IB_FLOW_LEFTOVERS_PRIO]; | |
cc0e5d42 MG |
1993 | } else if (flow_attr->type == IB_FLOW_ATTR_SNIFFER) { |
1994 | if (!MLX5_CAP_FLOWTABLE(dev->mdev, | |
1995 | allow_sniffer_and_nic_rx_shared_tir)) | |
1996 | return ERR_PTR(-ENOTSUPP); | |
1997 | ||
1998 | ns = mlx5_get_flow_namespace(dev->mdev, ft_type == MLX5_IB_FT_RX ? | |
1999 | MLX5_FLOW_NAMESPACE_SNIFFER_RX : | |
2000 | MLX5_FLOW_NAMESPACE_SNIFFER_TX); | |
2001 | ||
2002 | prio = &dev->flow_db.sniffer[ft_type]; | |
2003 | priority = 0; | |
2004 | num_entries = 1; | |
2005 | num_groups = 1; | |
038d2ef8 MG |
2006 | } |
2007 | ||
2008 | if (!ns) | |
2009 | return ERR_PTR(-ENOTSUPP); | |
2010 | ||
2011 | ft = prio->flow_table; | |
2012 | if (!ft) { | |
2013 | ft = mlx5_create_auto_grouped_flow_table(ns, priority, | |
2014 | num_entries, | |
d63cd286 | 2015 | num_groups, |
c9f1b073 | 2016 | 0, 0); |
038d2ef8 MG |
2017 | |
2018 | if (!IS_ERR(ft)) { | |
2019 | prio->refcount = 0; | |
2020 | prio->flow_table = ft; | |
2021 | } else { | |
2022 | err = PTR_ERR(ft); | |
2023 | } | |
2024 | } | |
2025 | ||
2026 | return err ? ERR_PTR(err) : prio; | |
2027 | } | |
2028 | ||
2029 | static struct mlx5_ib_flow_handler *create_flow_rule(struct mlx5_ib_dev *dev, | |
2030 | struct mlx5_ib_flow_prio *ft_prio, | |
dd063d0e | 2031 | const struct ib_flow_attr *flow_attr, |
038d2ef8 MG |
2032 | struct mlx5_flow_destination *dst) |
2033 | { | |
2034 | struct mlx5_flow_table *ft = ft_prio->flow_table; | |
2035 | struct mlx5_ib_flow_handler *handler; | |
66958ed9 | 2036 | struct mlx5_flow_act flow_act = {0}; |
c5bb1730 | 2037 | struct mlx5_flow_spec *spec; |
dd063d0e | 2038 | const void *ib_flow = (const void *)flow_attr + sizeof(*flow_attr); |
038d2ef8 | 2039 | unsigned int spec_index; |
038d2ef8 MG |
2040 | int err = 0; |
2041 | ||
2042 | if (!is_valid_attr(flow_attr)) | |
2043 | return ERR_PTR(-EINVAL); | |
2044 | ||
c5bb1730 | 2045 | spec = mlx5_vzalloc(sizeof(*spec)); |
038d2ef8 | 2046 | handler = kzalloc(sizeof(*handler), GFP_KERNEL); |
c5bb1730 | 2047 | if (!handler || !spec) { |
038d2ef8 MG |
2048 | err = -ENOMEM; |
2049 | goto free; | |
2050 | } | |
2051 | ||
2052 | INIT_LIST_HEAD(&handler->list); | |
2053 | ||
2054 | for (spec_index = 0; spec_index < flow_attr->num_of_specs; spec_index++) { | |
c5bb1730 MG |
2055 | err = parse_flow_attr(spec->match_criteria, |
2056 | spec->match_value, ib_flow); | |
038d2ef8 MG |
2057 | if (err < 0) |
2058 | goto free; | |
2059 | ||
2060 | ib_flow += ((union ib_flow_spec *)ib_flow)->size; | |
2061 | } | |
2062 | ||
466fa6d2 | 2063 | spec->match_criteria_enable = get_match_criteria_enable(spec->match_criteria); |
66958ed9 | 2064 | flow_act.action = dst ? MLX5_FLOW_CONTEXT_ACTION_FWD_DEST : |
35d19011 | 2065 | MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO; |
66958ed9 | 2066 | flow_act.flow_tag = MLX5_FS_DEFAULT_FLOW_TAG; |
74491de9 | 2067 | handler->rule = mlx5_add_flow_rules(ft, spec, |
66958ed9 HHZ |
2068 | &flow_act, |
2069 | dst, 1); | |
038d2ef8 MG |
2070 | |
2071 | if (IS_ERR(handler->rule)) { | |
2072 | err = PTR_ERR(handler->rule); | |
2073 | goto free; | |
2074 | } | |
2075 | ||
d9d4980a | 2076 | ft_prio->refcount++; |
5497adc6 | 2077 | handler->prio = ft_prio; |
038d2ef8 MG |
2078 | |
2079 | ft_prio->flow_table = ft; | |
2080 | free: | |
2081 | if (err) | |
2082 | kfree(handler); | |
c5bb1730 | 2083 | kvfree(spec); |
038d2ef8 MG |
2084 | return err ? ERR_PTR(err) : handler; |
2085 | } | |
2086 | ||
35d19011 MG |
2087 | static struct mlx5_ib_flow_handler *create_dont_trap_rule(struct mlx5_ib_dev *dev, |
2088 | struct mlx5_ib_flow_prio *ft_prio, | |
2089 | struct ib_flow_attr *flow_attr, | |
2090 | struct mlx5_flow_destination *dst) | |
2091 | { | |
2092 | struct mlx5_ib_flow_handler *handler_dst = NULL; | |
2093 | struct mlx5_ib_flow_handler *handler = NULL; | |
2094 | ||
2095 | handler = create_flow_rule(dev, ft_prio, flow_attr, NULL); | |
2096 | if (!IS_ERR(handler)) { | |
2097 | handler_dst = create_flow_rule(dev, ft_prio, | |
2098 | flow_attr, dst); | |
2099 | if (IS_ERR(handler_dst)) { | |
74491de9 | 2100 | mlx5_del_flow_rules(handler->rule); |
d9d4980a | 2101 | ft_prio->refcount--; |
35d19011 MG |
2102 | kfree(handler); |
2103 | handler = handler_dst; | |
2104 | } else { | |
2105 | list_add(&handler_dst->list, &handler->list); | |
2106 | } | |
2107 | } | |
2108 | ||
2109 | return handler; | |
2110 | } | |
038d2ef8 MG |
2111 | enum { |
2112 | LEFTOVERS_MC, | |
2113 | LEFTOVERS_UC, | |
2114 | }; | |
2115 | ||
2116 | static struct mlx5_ib_flow_handler *create_leftovers_rule(struct mlx5_ib_dev *dev, | |
2117 | struct mlx5_ib_flow_prio *ft_prio, | |
2118 | struct ib_flow_attr *flow_attr, | |
2119 | struct mlx5_flow_destination *dst) | |
2120 | { | |
2121 | struct mlx5_ib_flow_handler *handler_ucast = NULL; | |
2122 | struct mlx5_ib_flow_handler *handler = NULL; | |
2123 | ||
2124 | static struct { | |
2125 | struct ib_flow_attr flow_attr; | |
2126 | struct ib_flow_spec_eth eth_flow; | |
2127 | } leftovers_specs[] = { | |
2128 | [LEFTOVERS_MC] = { | |
2129 | .flow_attr = { | |
2130 | .num_of_specs = 1, | |
2131 | .size = sizeof(leftovers_specs[0]) | |
2132 | }, | |
2133 | .eth_flow = { | |
2134 | .type = IB_FLOW_SPEC_ETH, | |
2135 | .size = sizeof(struct ib_flow_spec_eth), | |
2136 | .mask = {.dst_mac = {0x1} }, | |
2137 | .val = {.dst_mac = {0x1} } | |
2138 | } | |
2139 | }, | |
2140 | [LEFTOVERS_UC] = { | |
2141 | .flow_attr = { | |
2142 | .num_of_specs = 1, | |
2143 | .size = sizeof(leftovers_specs[0]) | |
2144 | }, | |
2145 | .eth_flow = { | |
2146 | .type = IB_FLOW_SPEC_ETH, | |
2147 | .size = sizeof(struct ib_flow_spec_eth), | |
2148 | .mask = {.dst_mac = {0x1} }, | |
2149 | .val = {.dst_mac = {} } | |
2150 | } | |
2151 | } | |
2152 | }; | |
2153 | ||
2154 | handler = create_flow_rule(dev, ft_prio, | |
2155 | &leftovers_specs[LEFTOVERS_MC].flow_attr, | |
2156 | dst); | |
2157 | if (!IS_ERR(handler) && | |
2158 | flow_attr->type == IB_FLOW_ATTR_ALL_DEFAULT) { | |
2159 | handler_ucast = create_flow_rule(dev, ft_prio, | |
2160 | &leftovers_specs[LEFTOVERS_UC].flow_attr, | |
2161 | dst); | |
2162 | if (IS_ERR(handler_ucast)) { | |
74491de9 | 2163 | mlx5_del_flow_rules(handler->rule); |
d9d4980a | 2164 | ft_prio->refcount--; |
038d2ef8 MG |
2165 | kfree(handler); |
2166 | handler = handler_ucast; | |
2167 | } else { | |
2168 | list_add(&handler_ucast->list, &handler->list); | |
2169 | } | |
2170 | } | |
2171 | ||
2172 | return handler; | |
2173 | } | |
2174 | ||
cc0e5d42 MG |
2175 | static struct mlx5_ib_flow_handler *create_sniffer_rule(struct mlx5_ib_dev *dev, |
2176 | struct mlx5_ib_flow_prio *ft_rx, | |
2177 | struct mlx5_ib_flow_prio *ft_tx, | |
2178 | struct mlx5_flow_destination *dst) | |
2179 | { | |
2180 | struct mlx5_ib_flow_handler *handler_rx; | |
2181 | struct mlx5_ib_flow_handler *handler_tx; | |
2182 | int err; | |
2183 | static const struct ib_flow_attr flow_attr = { | |
2184 | .num_of_specs = 0, | |
2185 | .size = sizeof(flow_attr) | |
2186 | }; | |
2187 | ||
2188 | handler_rx = create_flow_rule(dev, ft_rx, &flow_attr, dst); | |
2189 | if (IS_ERR(handler_rx)) { | |
2190 | err = PTR_ERR(handler_rx); | |
2191 | goto err; | |
2192 | } | |
2193 | ||
2194 | handler_tx = create_flow_rule(dev, ft_tx, &flow_attr, dst); | |
2195 | if (IS_ERR(handler_tx)) { | |
2196 | err = PTR_ERR(handler_tx); | |
2197 | goto err_tx; | |
2198 | } | |
2199 | ||
2200 | list_add(&handler_tx->list, &handler_rx->list); | |
2201 | ||
2202 | return handler_rx; | |
2203 | ||
2204 | err_tx: | |
74491de9 | 2205 | mlx5_del_flow_rules(handler_rx->rule); |
cc0e5d42 MG |
2206 | ft_rx->refcount--; |
2207 | kfree(handler_rx); | |
2208 | err: | |
2209 | return ERR_PTR(err); | |
2210 | } | |
2211 | ||
038d2ef8 MG |
2212 | static struct ib_flow *mlx5_ib_create_flow(struct ib_qp *qp, |
2213 | struct ib_flow_attr *flow_attr, | |
2214 | int domain) | |
2215 | { | |
2216 | struct mlx5_ib_dev *dev = to_mdev(qp->device); | |
d9f88e5a | 2217 | struct mlx5_ib_qp *mqp = to_mqp(qp); |
038d2ef8 MG |
2218 | struct mlx5_ib_flow_handler *handler = NULL; |
2219 | struct mlx5_flow_destination *dst = NULL; | |
cc0e5d42 | 2220 | struct mlx5_ib_flow_prio *ft_prio_tx = NULL; |
038d2ef8 MG |
2221 | struct mlx5_ib_flow_prio *ft_prio; |
2222 | int err; | |
2223 | ||
2224 | if (flow_attr->priority > MLX5_IB_FLOW_LAST_PRIO) | |
2225 | return ERR_PTR(-ENOSPC); | |
2226 | ||
2227 | if (domain != IB_FLOW_DOMAIN_USER || | |
2228 | flow_attr->port > MLX5_CAP_GEN(dev->mdev, num_ports) || | |
35d19011 | 2229 | (flow_attr->flags & ~IB_FLOW_ATTR_FLAGS_DONT_TRAP)) |
038d2ef8 MG |
2230 | return ERR_PTR(-EINVAL); |
2231 | ||
2232 | dst = kzalloc(sizeof(*dst), GFP_KERNEL); | |
2233 | if (!dst) | |
2234 | return ERR_PTR(-ENOMEM); | |
2235 | ||
2236 | mutex_lock(&dev->flow_db.lock); | |
2237 | ||
cc0e5d42 | 2238 | ft_prio = get_flow_table(dev, flow_attr, MLX5_IB_FT_RX); |
038d2ef8 MG |
2239 | if (IS_ERR(ft_prio)) { |
2240 | err = PTR_ERR(ft_prio); | |
2241 | goto unlock; | |
2242 | } | |
cc0e5d42 MG |
2243 | if (flow_attr->type == IB_FLOW_ATTR_SNIFFER) { |
2244 | ft_prio_tx = get_flow_table(dev, flow_attr, MLX5_IB_FT_TX); | |
2245 | if (IS_ERR(ft_prio_tx)) { | |
2246 | err = PTR_ERR(ft_prio_tx); | |
2247 | ft_prio_tx = NULL; | |
2248 | goto destroy_ft; | |
2249 | } | |
2250 | } | |
038d2ef8 MG |
2251 | |
2252 | dst->type = MLX5_FLOW_DESTINATION_TYPE_TIR; | |
d9f88e5a YH |
2253 | if (mqp->flags & MLX5_IB_QP_RSS) |
2254 | dst->tir_num = mqp->rss_qp.tirn; | |
2255 | else | |
2256 | dst->tir_num = mqp->raw_packet_qp.rq.tirn; | |
038d2ef8 MG |
2257 | |
2258 | if (flow_attr->type == IB_FLOW_ATTR_NORMAL) { | |
35d19011 MG |
2259 | if (flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP) { |
2260 | handler = create_dont_trap_rule(dev, ft_prio, | |
2261 | flow_attr, dst); | |
2262 | } else { | |
2263 | handler = create_flow_rule(dev, ft_prio, flow_attr, | |
2264 | dst); | |
2265 | } | |
038d2ef8 MG |
2266 | } else if (flow_attr->type == IB_FLOW_ATTR_ALL_DEFAULT || |
2267 | flow_attr->type == IB_FLOW_ATTR_MC_DEFAULT) { | |
2268 | handler = create_leftovers_rule(dev, ft_prio, flow_attr, | |
2269 | dst); | |
cc0e5d42 MG |
2270 | } else if (flow_attr->type == IB_FLOW_ATTR_SNIFFER) { |
2271 | handler = create_sniffer_rule(dev, ft_prio, ft_prio_tx, dst); | |
038d2ef8 MG |
2272 | } else { |
2273 | err = -EINVAL; | |
2274 | goto destroy_ft; | |
2275 | } | |
2276 | ||
2277 | if (IS_ERR(handler)) { | |
2278 | err = PTR_ERR(handler); | |
2279 | handler = NULL; | |
2280 | goto destroy_ft; | |
2281 | } | |
2282 | ||
038d2ef8 MG |
2283 | mutex_unlock(&dev->flow_db.lock); |
2284 | kfree(dst); | |
2285 | ||
2286 | return &handler->ibflow; | |
2287 | ||
2288 | destroy_ft: | |
2289 | put_flow_table(dev, ft_prio, false); | |
cc0e5d42 MG |
2290 | if (ft_prio_tx) |
2291 | put_flow_table(dev, ft_prio_tx, false); | |
038d2ef8 MG |
2292 | unlock: |
2293 | mutex_unlock(&dev->flow_db.lock); | |
2294 | kfree(dst); | |
2295 | kfree(handler); | |
2296 | return ERR_PTR(err); | |
2297 | } | |
2298 | ||
e126ba97 EC |
2299 | static int mlx5_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) |
2300 | { | |
2301 | struct mlx5_ib_dev *dev = to_mdev(ibqp->device); | |
2302 | int err; | |
2303 | ||
9603b61d | 2304 | err = mlx5_core_attach_mcg(dev->mdev, gid, ibqp->qp_num); |
e126ba97 EC |
2305 | if (err) |
2306 | mlx5_ib_warn(dev, "failed attaching QPN 0x%x, MGID %pI6\n", | |
2307 | ibqp->qp_num, gid->raw); | |
2308 | ||
2309 | return err; | |
2310 | } | |
2311 | ||
2312 | static int mlx5_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
2313 | { | |
2314 | struct mlx5_ib_dev *dev = to_mdev(ibqp->device); | |
2315 | int err; | |
2316 | ||
9603b61d | 2317 | err = mlx5_core_detach_mcg(dev->mdev, gid, ibqp->qp_num); |
e126ba97 EC |
2318 | if (err) |
2319 | mlx5_ib_warn(dev, "failed detaching QPN 0x%x, MGID %pI6\n", | |
2320 | ibqp->qp_num, gid->raw); | |
2321 | ||
2322 | return err; | |
2323 | } | |
2324 | ||
2325 | static int init_node_data(struct mlx5_ib_dev *dev) | |
2326 | { | |
1b5daf11 | 2327 | int err; |
e126ba97 | 2328 | |
1b5daf11 | 2329 | err = mlx5_query_node_desc(dev, dev->ib_dev.node_desc); |
e126ba97 | 2330 | if (err) |
1b5daf11 | 2331 | return err; |
e126ba97 | 2332 | |
1b5daf11 | 2333 | dev->mdev->rev_id = dev->mdev->pdev->revision; |
e126ba97 | 2334 | |
1b5daf11 | 2335 | return mlx5_query_node_guid(dev, &dev->ib_dev.node_guid); |
e126ba97 EC |
2336 | } |
2337 | ||
2338 | static ssize_t show_fw_pages(struct device *device, struct device_attribute *attr, | |
2339 | char *buf) | |
2340 | { | |
2341 | struct mlx5_ib_dev *dev = | |
2342 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
2343 | ||
9603b61d | 2344 | return sprintf(buf, "%d\n", dev->mdev->priv.fw_pages); |
e126ba97 EC |
2345 | } |
2346 | ||
2347 | static ssize_t show_reg_pages(struct device *device, | |
2348 | struct device_attribute *attr, char *buf) | |
2349 | { | |
2350 | struct mlx5_ib_dev *dev = | |
2351 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
2352 | ||
6aec21f6 | 2353 | return sprintf(buf, "%d\n", atomic_read(&dev->mdev->priv.reg_pages)); |
e126ba97 EC |
2354 | } |
2355 | ||
2356 | static ssize_t show_hca(struct device *device, struct device_attribute *attr, | |
2357 | char *buf) | |
2358 | { | |
2359 | struct mlx5_ib_dev *dev = | |
2360 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
9603b61d | 2361 | return sprintf(buf, "MT%d\n", dev->mdev->pdev->device); |
e126ba97 EC |
2362 | } |
2363 | ||
e126ba97 EC |
2364 | static ssize_t show_rev(struct device *device, struct device_attribute *attr, |
2365 | char *buf) | |
2366 | { | |
2367 | struct mlx5_ib_dev *dev = | |
2368 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
9603b61d | 2369 | return sprintf(buf, "%x\n", dev->mdev->rev_id); |
e126ba97 EC |
2370 | } |
2371 | ||
2372 | static ssize_t show_board(struct device *device, struct device_attribute *attr, | |
2373 | char *buf) | |
2374 | { | |
2375 | struct mlx5_ib_dev *dev = | |
2376 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
2377 | return sprintf(buf, "%.*s\n", MLX5_BOARD_ID_LEN, | |
9603b61d | 2378 | dev->mdev->board_id); |
e126ba97 EC |
2379 | } |
2380 | ||
2381 | static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); | |
e126ba97 EC |
2382 | static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); |
2383 | static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); | |
2384 | static DEVICE_ATTR(fw_pages, S_IRUGO, show_fw_pages, NULL); | |
2385 | static DEVICE_ATTR(reg_pages, S_IRUGO, show_reg_pages, NULL); | |
2386 | ||
2387 | static struct device_attribute *mlx5_class_attributes[] = { | |
2388 | &dev_attr_hw_rev, | |
e126ba97 EC |
2389 | &dev_attr_hca_type, |
2390 | &dev_attr_board_id, | |
2391 | &dev_attr_fw_pages, | |
2392 | &dev_attr_reg_pages, | |
2393 | }; | |
2394 | ||
7722f47e HE |
2395 | static void pkey_change_handler(struct work_struct *work) |
2396 | { | |
2397 | struct mlx5_ib_port_resources *ports = | |
2398 | container_of(work, struct mlx5_ib_port_resources, | |
2399 | pkey_change_work); | |
2400 | ||
2401 | mutex_lock(&ports->devr->mutex); | |
2402 | mlx5_ib_gsi_pkey_change(ports->gsi); | |
2403 | mutex_unlock(&ports->devr->mutex); | |
2404 | } | |
2405 | ||
89ea94a7 MG |
2406 | static void mlx5_ib_handle_internal_error(struct mlx5_ib_dev *ibdev) |
2407 | { | |
2408 | struct mlx5_ib_qp *mqp; | |
2409 | struct mlx5_ib_cq *send_mcq, *recv_mcq; | |
2410 | struct mlx5_core_cq *mcq; | |
2411 | struct list_head cq_armed_list; | |
2412 | unsigned long flags_qp; | |
2413 | unsigned long flags_cq; | |
2414 | unsigned long flags; | |
2415 | ||
2416 | INIT_LIST_HEAD(&cq_armed_list); | |
2417 | ||
2418 | /* Go over qp list reside on that ibdev, sync with create/destroy qp.*/ | |
2419 | spin_lock_irqsave(&ibdev->reset_flow_resource_lock, flags); | |
2420 | list_for_each_entry(mqp, &ibdev->qp_list, qps_list) { | |
2421 | spin_lock_irqsave(&mqp->sq.lock, flags_qp); | |
2422 | if (mqp->sq.tail != mqp->sq.head) { | |
2423 | send_mcq = to_mcq(mqp->ibqp.send_cq); | |
2424 | spin_lock_irqsave(&send_mcq->lock, flags_cq); | |
2425 | if (send_mcq->mcq.comp && | |
2426 | mqp->ibqp.send_cq->comp_handler) { | |
2427 | if (!send_mcq->mcq.reset_notify_added) { | |
2428 | send_mcq->mcq.reset_notify_added = 1; | |
2429 | list_add_tail(&send_mcq->mcq.reset_notify, | |
2430 | &cq_armed_list); | |
2431 | } | |
2432 | } | |
2433 | spin_unlock_irqrestore(&send_mcq->lock, flags_cq); | |
2434 | } | |
2435 | spin_unlock_irqrestore(&mqp->sq.lock, flags_qp); | |
2436 | spin_lock_irqsave(&mqp->rq.lock, flags_qp); | |
2437 | /* no handling is needed for SRQ */ | |
2438 | if (!mqp->ibqp.srq) { | |
2439 | if (mqp->rq.tail != mqp->rq.head) { | |
2440 | recv_mcq = to_mcq(mqp->ibqp.recv_cq); | |
2441 | spin_lock_irqsave(&recv_mcq->lock, flags_cq); | |
2442 | if (recv_mcq->mcq.comp && | |
2443 | mqp->ibqp.recv_cq->comp_handler) { | |
2444 | if (!recv_mcq->mcq.reset_notify_added) { | |
2445 | recv_mcq->mcq.reset_notify_added = 1; | |
2446 | list_add_tail(&recv_mcq->mcq.reset_notify, | |
2447 | &cq_armed_list); | |
2448 | } | |
2449 | } | |
2450 | spin_unlock_irqrestore(&recv_mcq->lock, | |
2451 | flags_cq); | |
2452 | } | |
2453 | } | |
2454 | spin_unlock_irqrestore(&mqp->rq.lock, flags_qp); | |
2455 | } | |
2456 | /*At that point all inflight post send were put to be executed as of we | |
2457 | * lock/unlock above locks Now need to arm all involved CQs. | |
2458 | */ | |
2459 | list_for_each_entry(mcq, &cq_armed_list, reset_notify) { | |
2460 | mcq->comp(mcq); | |
2461 | } | |
2462 | spin_unlock_irqrestore(&ibdev->reset_flow_resource_lock, flags); | |
2463 | } | |
2464 | ||
9603b61d | 2465 | static void mlx5_ib_event(struct mlx5_core_dev *dev, void *context, |
4d2f9bbb | 2466 | enum mlx5_dev_event event, unsigned long param) |
e126ba97 | 2467 | { |
9603b61d | 2468 | struct mlx5_ib_dev *ibdev = (struct mlx5_ib_dev *)context; |
e126ba97 | 2469 | struct ib_event ibev; |
dbaaff2a | 2470 | bool fatal = false; |
e126ba97 EC |
2471 | u8 port = 0; |
2472 | ||
2473 | switch (event) { | |
2474 | case MLX5_DEV_EVENT_SYS_ERROR: | |
e126ba97 | 2475 | ibev.event = IB_EVENT_DEVICE_FATAL; |
89ea94a7 | 2476 | mlx5_ib_handle_internal_error(ibdev); |
dbaaff2a | 2477 | fatal = true; |
e126ba97 EC |
2478 | break; |
2479 | ||
2480 | case MLX5_DEV_EVENT_PORT_UP: | |
e126ba97 | 2481 | case MLX5_DEV_EVENT_PORT_DOWN: |
2788cf3b | 2482 | case MLX5_DEV_EVENT_PORT_INITIALIZED: |
4d2f9bbb | 2483 | port = (u8)param; |
5ec8c83e AH |
2484 | |
2485 | /* In RoCE, port up/down events are handled in | |
2486 | * mlx5_netdev_event(). | |
2487 | */ | |
2488 | if (mlx5_ib_port_link_layer(&ibdev->ib_dev, port) == | |
2489 | IB_LINK_LAYER_ETHERNET) | |
2490 | return; | |
2491 | ||
2492 | ibev.event = (event == MLX5_DEV_EVENT_PORT_UP) ? | |
2493 | IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR; | |
e126ba97 EC |
2494 | break; |
2495 | ||
e126ba97 EC |
2496 | case MLX5_DEV_EVENT_LID_CHANGE: |
2497 | ibev.event = IB_EVENT_LID_CHANGE; | |
4d2f9bbb | 2498 | port = (u8)param; |
e126ba97 EC |
2499 | break; |
2500 | ||
2501 | case MLX5_DEV_EVENT_PKEY_CHANGE: | |
2502 | ibev.event = IB_EVENT_PKEY_CHANGE; | |
4d2f9bbb | 2503 | port = (u8)param; |
7722f47e HE |
2504 | |
2505 | schedule_work(&ibdev->devr.ports[port - 1].pkey_change_work); | |
e126ba97 EC |
2506 | break; |
2507 | ||
2508 | case MLX5_DEV_EVENT_GUID_CHANGE: | |
2509 | ibev.event = IB_EVENT_GID_CHANGE; | |
4d2f9bbb | 2510 | port = (u8)param; |
e126ba97 EC |
2511 | break; |
2512 | ||
2513 | case MLX5_DEV_EVENT_CLIENT_REREG: | |
2514 | ibev.event = IB_EVENT_CLIENT_REREGISTER; | |
4d2f9bbb | 2515 | port = (u8)param; |
e126ba97 | 2516 | break; |
bdc37924 SM |
2517 | default: |
2518 | return; | |
e126ba97 EC |
2519 | } |
2520 | ||
2521 | ibev.device = &ibdev->ib_dev; | |
2522 | ibev.element.port_num = port; | |
2523 | ||
a0c84c32 EC |
2524 | if (port < 1 || port > ibdev->num_ports) { |
2525 | mlx5_ib_warn(ibdev, "warning: event on port %d\n", port); | |
2526 | return; | |
2527 | } | |
2528 | ||
e126ba97 EC |
2529 | if (ibdev->ib_active) |
2530 | ib_dispatch_event(&ibev); | |
dbaaff2a EC |
2531 | |
2532 | if (fatal) | |
2533 | ibdev->ib_active = false; | |
e126ba97 EC |
2534 | } |
2535 | ||
2536 | static void get_ext_port_caps(struct mlx5_ib_dev *dev) | |
2537 | { | |
2538 | int port; | |
2539 | ||
938fe83c | 2540 | for (port = 1; port <= MLX5_CAP_GEN(dev->mdev, num_ports); port++) |
e126ba97 EC |
2541 | mlx5_query_ext_port_caps(dev, port); |
2542 | } | |
2543 | ||
2544 | static int get_port_caps(struct mlx5_ib_dev *dev) | |
2545 | { | |
2546 | struct ib_device_attr *dprops = NULL; | |
2547 | struct ib_port_attr *pprops = NULL; | |
f614fc15 | 2548 | int err = -ENOMEM; |
e126ba97 | 2549 | int port; |
2528e33e | 2550 | struct ib_udata uhw = {.inlen = 0, .outlen = 0}; |
e126ba97 EC |
2551 | |
2552 | pprops = kmalloc(sizeof(*pprops), GFP_KERNEL); | |
2553 | if (!pprops) | |
2554 | goto out; | |
2555 | ||
2556 | dprops = kmalloc(sizeof(*dprops), GFP_KERNEL); | |
2557 | if (!dprops) | |
2558 | goto out; | |
2559 | ||
2528e33e | 2560 | err = mlx5_ib_query_device(&dev->ib_dev, dprops, &uhw); |
e126ba97 EC |
2561 | if (err) { |
2562 | mlx5_ib_warn(dev, "query_device failed %d\n", err); | |
2563 | goto out; | |
2564 | } | |
2565 | ||
938fe83c | 2566 | for (port = 1; port <= MLX5_CAP_GEN(dev->mdev, num_ports); port++) { |
e126ba97 EC |
2567 | err = mlx5_ib_query_port(&dev->ib_dev, port, pprops); |
2568 | if (err) { | |
938fe83c SM |
2569 | mlx5_ib_warn(dev, "query_port %d failed %d\n", |
2570 | port, err); | |
e126ba97 EC |
2571 | break; |
2572 | } | |
938fe83c SM |
2573 | dev->mdev->port_caps[port - 1].pkey_table_len = |
2574 | dprops->max_pkeys; | |
2575 | dev->mdev->port_caps[port - 1].gid_table_len = | |
2576 | pprops->gid_tbl_len; | |
e126ba97 EC |
2577 | mlx5_ib_dbg(dev, "pkey_table_len %d, gid_table_len %d\n", |
2578 | dprops->max_pkeys, pprops->gid_tbl_len); | |
2579 | } | |
2580 | ||
2581 | out: | |
2582 | kfree(pprops); | |
2583 | kfree(dprops); | |
2584 | ||
2585 | return err; | |
2586 | } | |
2587 | ||
2588 | static void destroy_umrc_res(struct mlx5_ib_dev *dev) | |
2589 | { | |
2590 | int err; | |
2591 | ||
2592 | err = mlx5_mr_cache_cleanup(dev); | |
2593 | if (err) | |
2594 | mlx5_ib_warn(dev, "mr cache cleanup failed\n"); | |
2595 | ||
2596 | mlx5_ib_destroy_qp(dev->umrc.qp); | |
add08d76 | 2597 | ib_free_cq(dev->umrc.cq); |
e126ba97 EC |
2598 | ib_dealloc_pd(dev->umrc.pd); |
2599 | } | |
2600 | ||
2601 | enum { | |
2602 | MAX_UMR_WR = 128, | |
2603 | }; | |
2604 | ||
2605 | static int create_umr_res(struct mlx5_ib_dev *dev) | |
2606 | { | |
2607 | struct ib_qp_init_attr *init_attr = NULL; | |
2608 | struct ib_qp_attr *attr = NULL; | |
2609 | struct ib_pd *pd; | |
2610 | struct ib_cq *cq; | |
2611 | struct ib_qp *qp; | |
e126ba97 EC |
2612 | int ret; |
2613 | ||
2614 | attr = kzalloc(sizeof(*attr), GFP_KERNEL); | |
2615 | init_attr = kzalloc(sizeof(*init_attr), GFP_KERNEL); | |
2616 | if (!attr || !init_attr) { | |
2617 | ret = -ENOMEM; | |
2618 | goto error_0; | |
2619 | } | |
2620 | ||
ed082d36 | 2621 | pd = ib_alloc_pd(&dev->ib_dev, 0); |
e126ba97 EC |
2622 | if (IS_ERR(pd)) { |
2623 | mlx5_ib_dbg(dev, "Couldn't create PD for sync UMR QP\n"); | |
2624 | ret = PTR_ERR(pd); | |
2625 | goto error_0; | |
2626 | } | |
2627 | ||
add08d76 | 2628 | cq = ib_alloc_cq(&dev->ib_dev, NULL, 128, 0, IB_POLL_SOFTIRQ); |
e126ba97 EC |
2629 | if (IS_ERR(cq)) { |
2630 | mlx5_ib_dbg(dev, "Couldn't create CQ for sync UMR QP\n"); | |
2631 | ret = PTR_ERR(cq); | |
2632 | goto error_2; | |
2633 | } | |
e126ba97 EC |
2634 | |
2635 | init_attr->send_cq = cq; | |
2636 | init_attr->recv_cq = cq; | |
2637 | init_attr->sq_sig_type = IB_SIGNAL_ALL_WR; | |
2638 | init_attr->cap.max_send_wr = MAX_UMR_WR; | |
2639 | init_attr->cap.max_send_sge = 1; | |
2640 | init_attr->qp_type = MLX5_IB_QPT_REG_UMR; | |
2641 | init_attr->port_num = 1; | |
2642 | qp = mlx5_ib_create_qp(pd, init_attr, NULL); | |
2643 | if (IS_ERR(qp)) { | |
2644 | mlx5_ib_dbg(dev, "Couldn't create sync UMR QP\n"); | |
2645 | ret = PTR_ERR(qp); | |
2646 | goto error_3; | |
2647 | } | |
2648 | qp->device = &dev->ib_dev; | |
2649 | qp->real_qp = qp; | |
2650 | qp->uobject = NULL; | |
2651 | qp->qp_type = MLX5_IB_QPT_REG_UMR; | |
2652 | ||
2653 | attr->qp_state = IB_QPS_INIT; | |
2654 | attr->port_num = 1; | |
2655 | ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE | IB_QP_PKEY_INDEX | | |
2656 | IB_QP_PORT, NULL); | |
2657 | if (ret) { | |
2658 | mlx5_ib_dbg(dev, "Couldn't modify UMR QP\n"); | |
2659 | goto error_4; | |
2660 | } | |
2661 | ||
2662 | memset(attr, 0, sizeof(*attr)); | |
2663 | attr->qp_state = IB_QPS_RTR; | |
2664 | attr->path_mtu = IB_MTU_256; | |
2665 | ||
2666 | ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE, NULL); | |
2667 | if (ret) { | |
2668 | mlx5_ib_dbg(dev, "Couldn't modify umr QP to rtr\n"); | |
2669 | goto error_4; | |
2670 | } | |
2671 | ||
2672 | memset(attr, 0, sizeof(*attr)); | |
2673 | attr->qp_state = IB_QPS_RTS; | |
2674 | ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE, NULL); | |
2675 | if (ret) { | |
2676 | mlx5_ib_dbg(dev, "Couldn't modify umr QP to rts\n"); | |
2677 | goto error_4; | |
2678 | } | |
2679 | ||
2680 | dev->umrc.qp = qp; | |
2681 | dev->umrc.cq = cq; | |
e126ba97 EC |
2682 | dev->umrc.pd = pd; |
2683 | ||
2684 | sema_init(&dev->umrc.sem, MAX_UMR_WR); | |
2685 | ret = mlx5_mr_cache_init(dev); | |
2686 | if (ret) { | |
2687 | mlx5_ib_warn(dev, "mr cache init failed %d\n", ret); | |
2688 | goto error_4; | |
2689 | } | |
2690 | ||
2691 | kfree(attr); | |
2692 | kfree(init_attr); | |
2693 | ||
2694 | return 0; | |
2695 | ||
2696 | error_4: | |
2697 | mlx5_ib_destroy_qp(qp); | |
2698 | ||
2699 | error_3: | |
add08d76 | 2700 | ib_free_cq(cq); |
e126ba97 EC |
2701 | |
2702 | error_2: | |
e126ba97 EC |
2703 | ib_dealloc_pd(pd); |
2704 | ||
2705 | error_0: | |
2706 | kfree(attr); | |
2707 | kfree(init_attr); | |
2708 | return ret; | |
2709 | } | |
2710 | ||
2711 | static int create_dev_resources(struct mlx5_ib_resources *devr) | |
2712 | { | |
2713 | struct ib_srq_init_attr attr; | |
2714 | struct mlx5_ib_dev *dev; | |
bcf4c1ea | 2715 | struct ib_cq_init_attr cq_attr = {.cqe = 1}; |
7722f47e | 2716 | int port; |
e126ba97 EC |
2717 | int ret = 0; |
2718 | ||
2719 | dev = container_of(devr, struct mlx5_ib_dev, devr); | |
2720 | ||
d16e91da HE |
2721 | mutex_init(&devr->mutex); |
2722 | ||
e126ba97 EC |
2723 | devr->p0 = mlx5_ib_alloc_pd(&dev->ib_dev, NULL, NULL); |
2724 | if (IS_ERR(devr->p0)) { | |
2725 | ret = PTR_ERR(devr->p0); | |
2726 | goto error0; | |
2727 | } | |
2728 | devr->p0->device = &dev->ib_dev; | |
2729 | devr->p0->uobject = NULL; | |
2730 | atomic_set(&devr->p0->usecnt, 0); | |
2731 | ||
bcf4c1ea | 2732 | devr->c0 = mlx5_ib_create_cq(&dev->ib_dev, &cq_attr, NULL, NULL); |
e126ba97 EC |
2733 | if (IS_ERR(devr->c0)) { |
2734 | ret = PTR_ERR(devr->c0); | |
2735 | goto error1; | |
2736 | } | |
2737 | devr->c0->device = &dev->ib_dev; | |
2738 | devr->c0->uobject = NULL; | |
2739 | devr->c0->comp_handler = NULL; | |
2740 | devr->c0->event_handler = NULL; | |
2741 | devr->c0->cq_context = NULL; | |
2742 | atomic_set(&devr->c0->usecnt, 0); | |
2743 | ||
2744 | devr->x0 = mlx5_ib_alloc_xrcd(&dev->ib_dev, NULL, NULL); | |
2745 | if (IS_ERR(devr->x0)) { | |
2746 | ret = PTR_ERR(devr->x0); | |
2747 | goto error2; | |
2748 | } | |
2749 | devr->x0->device = &dev->ib_dev; | |
2750 | devr->x0->inode = NULL; | |
2751 | atomic_set(&devr->x0->usecnt, 0); | |
2752 | mutex_init(&devr->x0->tgt_qp_mutex); | |
2753 | INIT_LIST_HEAD(&devr->x0->tgt_qp_list); | |
2754 | ||
2755 | devr->x1 = mlx5_ib_alloc_xrcd(&dev->ib_dev, NULL, NULL); | |
2756 | if (IS_ERR(devr->x1)) { | |
2757 | ret = PTR_ERR(devr->x1); | |
2758 | goto error3; | |
2759 | } | |
2760 | devr->x1->device = &dev->ib_dev; | |
2761 | devr->x1->inode = NULL; | |
2762 | atomic_set(&devr->x1->usecnt, 0); | |
2763 | mutex_init(&devr->x1->tgt_qp_mutex); | |
2764 | INIT_LIST_HEAD(&devr->x1->tgt_qp_list); | |
2765 | ||
2766 | memset(&attr, 0, sizeof(attr)); | |
2767 | attr.attr.max_sge = 1; | |
2768 | attr.attr.max_wr = 1; | |
2769 | attr.srq_type = IB_SRQT_XRC; | |
2770 | attr.ext.xrc.cq = devr->c0; | |
2771 | attr.ext.xrc.xrcd = devr->x0; | |
2772 | ||
2773 | devr->s0 = mlx5_ib_create_srq(devr->p0, &attr, NULL); | |
2774 | if (IS_ERR(devr->s0)) { | |
2775 | ret = PTR_ERR(devr->s0); | |
2776 | goto error4; | |
2777 | } | |
2778 | devr->s0->device = &dev->ib_dev; | |
2779 | devr->s0->pd = devr->p0; | |
2780 | devr->s0->uobject = NULL; | |
2781 | devr->s0->event_handler = NULL; | |
2782 | devr->s0->srq_context = NULL; | |
2783 | devr->s0->srq_type = IB_SRQT_XRC; | |
2784 | devr->s0->ext.xrc.xrcd = devr->x0; | |
2785 | devr->s0->ext.xrc.cq = devr->c0; | |
2786 | atomic_inc(&devr->s0->ext.xrc.xrcd->usecnt); | |
2787 | atomic_inc(&devr->s0->ext.xrc.cq->usecnt); | |
2788 | atomic_inc(&devr->p0->usecnt); | |
2789 | atomic_set(&devr->s0->usecnt, 0); | |
2790 | ||
4aa17b28 HA |
2791 | memset(&attr, 0, sizeof(attr)); |
2792 | attr.attr.max_sge = 1; | |
2793 | attr.attr.max_wr = 1; | |
2794 | attr.srq_type = IB_SRQT_BASIC; | |
2795 | devr->s1 = mlx5_ib_create_srq(devr->p0, &attr, NULL); | |
2796 | if (IS_ERR(devr->s1)) { | |
2797 | ret = PTR_ERR(devr->s1); | |
2798 | goto error5; | |
2799 | } | |
2800 | devr->s1->device = &dev->ib_dev; | |
2801 | devr->s1->pd = devr->p0; | |
2802 | devr->s1->uobject = NULL; | |
2803 | devr->s1->event_handler = NULL; | |
2804 | devr->s1->srq_context = NULL; | |
2805 | devr->s1->srq_type = IB_SRQT_BASIC; | |
2806 | devr->s1->ext.xrc.cq = devr->c0; | |
2807 | atomic_inc(&devr->p0->usecnt); | |
2808 | atomic_set(&devr->s0->usecnt, 0); | |
2809 | ||
7722f47e HE |
2810 | for (port = 0; port < ARRAY_SIZE(devr->ports); ++port) { |
2811 | INIT_WORK(&devr->ports[port].pkey_change_work, | |
2812 | pkey_change_handler); | |
2813 | devr->ports[port].devr = devr; | |
2814 | } | |
2815 | ||
e126ba97 EC |
2816 | return 0; |
2817 | ||
4aa17b28 HA |
2818 | error5: |
2819 | mlx5_ib_destroy_srq(devr->s0); | |
e126ba97 EC |
2820 | error4: |
2821 | mlx5_ib_dealloc_xrcd(devr->x1); | |
2822 | error3: | |
2823 | mlx5_ib_dealloc_xrcd(devr->x0); | |
2824 | error2: | |
2825 | mlx5_ib_destroy_cq(devr->c0); | |
2826 | error1: | |
2827 | mlx5_ib_dealloc_pd(devr->p0); | |
2828 | error0: | |
2829 | return ret; | |
2830 | } | |
2831 | ||
2832 | static void destroy_dev_resources(struct mlx5_ib_resources *devr) | |
2833 | { | |
7722f47e HE |
2834 | struct mlx5_ib_dev *dev = |
2835 | container_of(devr, struct mlx5_ib_dev, devr); | |
2836 | int port; | |
2837 | ||
4aa17b28 | 2838 | mlx5_ib_destroy_srq(devr->s1); |
e126ba97 EC |
2839 | mlx5_ib_destroy_srq(devr->s0); |
2840 | mlx5_ib_dealloc_xrcd(devr->x0); | |
2841 | mlx5_ib_dealloc_xrcd(devr->x1); | |
2842 | mlx5_ib_destroy_cq(devr->c0); | |
2843 | mlx5_ib_dealloc_pd(devr->p0); | |
7722f47e HE |
2844 | |
2845 | /* Make sure no change P_Key work items are still executing */ | |
2846 | for (port = 0; port < dev->num_ports; ++port) | |
2847 | cancel_work_sync(&devr->ports[port].pkey_change_work); | |
e126ba97 EC |
2848 | } |
2849 | ||
e53505a8 AS |
2850 | static u32 get_core_cap_flags(struct ib_device *ibdev) |
2851 | { | |
2852 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
2853 | enum rdma_link_layer ll = mlx5_ib_port_link_layer(ibdev, 1); | |
2854 | u8 l3_type_cap = MLX5_CAP_ROCE(dev->mdev, l3_type); | |
2855 | u8 roce_version_cap = MLX5_CAP_ROCE(dev->mdev, roce_version); | |
2856 | u32 ret = 0; | |
2857 | ||
2858 | if (ll == IB_LINK_LAYER_INFINIBAND) | |
2859 | return RDMA_CORE_PORT_IBA_IB; | |
2860 | ||
2861 | if (!(l3_type_cap & MLX5_ROCE_L3_TYPE_IPV4_CAP)) | |
2862 | return 0; | |
2863 | ||
2864 | if (!(l3_type_cap & MLX5_ROCE_L3_TYPE_IPV6_CAP)) | |
2865 | return 0; | |
2866 | ||
2867 | if (roce_version_cap & MLX5_ROCE_VERSION_1_CAP) | |
2868 | ret |= RDMA_CORE_PORT_IBA_ROCE; | |
2869 | ||
2870 | if (roce_version_cap & MLX5_ROCE_VERSION_2_CAP) | |
2871 | ret |= RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP; | |
2872 | ||
2873 | return ret; | |
2874 | } | |
2875 | ||
7738613e IW |
2876 | static int mlx5_port_immutable(struct ib_device *ibdev, u8 port_num, |
2877 | struct ib_port_immutable *immutable) | |
2878 | { | |
2879 | struct ib_port_attr attr; | |
ca5b91d6 OG |
2880 | struct mlx5_ib_dev *dev = to_mdev(ibdev); |
2881 | enum rdma_link_layer ll = mlx5_ib_port_link_layer(ibdev, port_num); | |
7738613e IW |
2882 | int err; |
2883 | ||
2884 | err = mlx5_ib_query_port(ibdev, port_num, &attr); | |
2885 | if (err) | |
2886 | return err; | |
2887 | ||
2888 | immutable->pkey_tbl_len = attr.pkey_tbl_len; | |
2889 | immutable->gid_tbl_len = attr.gid_tbl_len; | |
e53505a8 | 2890 | immutable->core_cap_flags = get_core_cap_flags(ibdev); |
ca5b91d6 OG |
2891 | if ((ll == IB_LINK_LAYER_INFINIBAND) || MLX5_CAP_GEN(dev->mdev, roce)) |
2892 | immutable->max_mad_size = IB_MGMT_MAD_SIZE; | |
7738613e IW |
2893 | |
2894 | return 0; | |
2895 | } | |
2896 | ||
c7342823 IW |
2897 | static void get_dev_fw_str(struct ib_device *ibdev, char *str, |
2898 | size_t str_len) | |
2899 | { | |
2900 | struct mlx5_ib_dev *dev = | |
2901 | container_of(ibdev, struct mlx5_ib_dev, ib_dev); | |
2902 | snprintf(str, str_len, "%d.%d.%04d", fw_rev_maj(dev->mdev), | |
2903 | fw_rev_min(dev->mdev), fw_rev_sub(dev->mdev)); | |
2904 | } | |
2905 | ||
45f95acd | 2906 | static int mlx5_eth_lag_init(struct mlx5_ib_dev *dev) |
9ef9c640 AH |
2907 | { |
2908 | struct mlx5_core_dev *mdev = dev->mdev; | |
2909 | struct mlx5_flow_namespace *ns = mlx5_get_flow_namespace(mdev, | |
2910 | MLX5_FLOW_NAMESPACE_LAG); | |
2911 | struct mlx5_flow_table *ft; | |
2912 | int err; | |
2913 | ||
2914 | if (!ns || !mlx5_lag_is_active(mdev)) | |
2915 | return 0; | |
2916 | ||
2917 | err = mlx5_cmd_create_vport_lag(mdev); | |
2918 | if (err) | |
2919 | return err; | |
2920 | ||
2921 | ft = mlx5_create_lag_demux_flow_table(ns, 0, 0); | |
2922 | if (IS_ERR(ft)) { | |
2923 | err = PTR_ERR(ft); | |
2924 | goto err_destroy_vport_lag; | |
2925 | } | |
2926 | ||
2927 | dev->flow_db.lag_demux_ft = ft; | |
2928 | return 0; | |
2929 | ||
2930 | err_destroy_vport_lag: | |
2931 | mlx5_cmd_destroy_vport_lag(mdev); | |
2932 | return err; | |
2933 | } | |
2934 | ||
45f95acd | 2935 | static void mlx5_eth_lag_cleanup(struct mlx5_ib_dev *dev) |
9ef9c640 AH |
2936 | { |
2937 | struct mlx5_core_dev *mdev = dev->mdev; | |
2938 | ||
2939 | if (dev->flow_db.lag_demux_ft) { | |
2940 | mlx5_destroy_flow_table(dev->flow_db.lag_demux_ft); | |
2941 | dev->flow_db.lag_demux_ft = NULL; | |
2942 | ||
2943 | mlx5_cmd_destroy_vport_lag(mdev); | |
2944 | } | |
2945 | } | |
2946 | ||
d012f5d6 OG |
2947 | static int mlx5_add_netdev_notifier(struct mlx5_ib_dev *dev) |
2948 | { | |
2949 | int err; | |
2950 | ||
2951 | dev->roce.nb.notifier_call = mlx5_netdev_event; | |
2952 | err = register_netdevice_notifier(&dev->roce.nb); | |
2953 | if (err) { | |
2954 | dev->roce.nb.notifier_call = NULL; | |
2955 | return err; | |
2956 | } | |
2957 | ||
2958 | return 0; | |
2959 | } | |
2960 | ||
2961 | static void mlx5_remove_netdev_notifier(struct mlx5_ib_dev *dev) | |
5ec8c83e AH |
2962 | { |
2963 | if (dev->roce.nb.notifier_call) { | |
2964 | unregister_netdevice_notifier(&dev->roce.nb); | |
2965 | dev->roce.nb.notifier_call = NULL; | |
2966 | } | |
2967 | } | |
2968 | ||
45f95acd | 2969 | static int mlx5_enable_eth(struct mlx5_ib_dev *dev) |
fc24fc5e | 2970 | { |
e53505a8 AS |
2971 | int err; |
2972 | ||
d012f5d6 OG |
2973 | err = mlx5_add_netdev_notifier(dev); |
2974 | if (err) | |
e53505a8 AS |
2975 | return err; |
2976 | ||
ca5b91d6 OG |
2977 | if (MLX5_CAP_GEN(dev->mdev, roce)) { |
2978 | err = mlx5_nic_vport_enable_roce(dev->mdev); | |
2979 | if (err) | |
2980 | goto err_unregister_netdevice_notifier; | |
2981 | } | |
e53505a8 | 2982 | |
45f95acd | 2983 | err = mlx5_eth_lag_init(dev); |
9ef9c640 AH |
2984 | if (err) |
2985 | goto err_disable_roce; | |
2986 | ||
e53505a8 AS |
2987 | return 0; |
2988 | ||
9ef9c640 | 2989 | err_disable_roce: |
ca5b91d6 OG |
2990 | if (MLX5_CAP_GEN(dev->mdev, roce)) |
2991 | mlx5_nic_vport_disable_roce(dev->mdev); | |
9ef9c640 | 2992 | |
e53505a8 | 2993 | err_unregister_netdevice_notifier: |
d012f5d6 | 2994 | mlx5_remove_netdev_notifier(dev); |
e53505a8 | 2995 | return err; |
fc24fc5e AS |
2996 | } |
2997 | ||
45f95acd | 2998 | static void mlx5_disable_eth(struct mlx5_ib_dev *dev) |
fc24fc5e | 2999 | { |
45f95acd | 3000 | mlx5_eth_lag_cleanup(dev); |
ca5b91d6 OG |
3001 | if (MLX5_CAP_GEN(dev->mdev, roce)) |
3002 | mlx5_nic_vport_disable_roce(dev->mdev); | |
fc24fc5e AS |
3003 | } |
3004 | ||
0837e86a MB |
3005 | static void mlx5_ib_dealloc_q_counters(struct mlx5_ib_dev *dev) |
3006 | { | |
3007 | unsigned int i; | |
3008 | ||
3009 | for (i = 0; i < dev->num_ports; i++) | |
3010 | mlx5_core_dealloc_q_counter(dev->mdev, | |
3011 | dev->port[i].q_cnt_id); | |
3012 | } | |
3013 | ||
3014 | static int mlx5_ib_alloc_q_counters(struct mlx5_ib_dev *dev) | |
3015 | { | |
3016 | int i; | |
3017 | int ret; | |
3018 | ||
3019 | for (i = 0; i < dev->num_ports; i++) { | |
3020 | ret = mlx5_core_alloc_q_counter(dev->mdev, | |
3021 | &dev->port[i].q_cnt_id); | |
3022 | if (ret) { | |
3023 | mlx5_ib_warn(dev, | |
3024 | "couldn't allocate queue counter for port %d, err %d\n", | |
3025 | i + 1, ret); | |
3026 | goto dealloc_counters; | |
3027 | } | |
3028 | } | |
3029 | ||
3030 | return 0; | |
3031 | ||
3032 | dealloc_counters: | |
3033 | while (--i >= 0) | |
3034 | mlx5_core_dealloc_q_counter(dev->mdev, | |
3035 | dev->port[i].q_cnt_id); | |
3036 | ||
3037 | return ret; | |
3038 | } | |
3039 | ||
61961500 | 3040 | static const char * const names[] = { |
0ad17a8f MB |
3041 | "rx_write_requests", |
3042 | "rx_read_requests", | |
3043 | "rx_atomic_requests", | |
3044 | "out_of_buffer", | |
3045 | "out_of_sequence", | |
3046 | "duplicate_request", | |
3047 | "rnr_nak_retry_err", | |
3048 | "packet_seq_err", | |
3049 | "implied_nak_seq_err", | |
3050 | "local_ack_timeout_err", | |
3051 | }; | |
3052 | ||
3053 | static const size_t stats_offsets[] = { | |
3054 | MLX5_BYTE_OFF(query_q_counter_out, rx_write_requests), | |
3055 | MLX5_BYTE_OFF(query_q_counter_out, rx_read_requests), | |
3056 | MLX5_BYTE_OFF(query_q_counter_out, rx_atomic_requests), | |
3057 | MLX5_BYTE_OFF(query_q_counter_out, out_of_buffer), | |
3058 | MLX5_BYTE_OFF(query_q_counter_out, out_of_sequence), | |
3059 | MLX5_BYTE_OFF(query_q_counter_out, duplicate_request), | |
3060 | MLX5_BYTE_OFF(query_q_counter_out, rnr_nak_retry_err), | |
3061 | MLX5_BYTE_OFF(query_q_counter_out, packet_seq_err), | |
3062 | MLX5_BYTE_OFF(query_q_counter_out, implied_nak_seq_err), | |
3063 | MLX5_BYTE_OFF(query_q_counter_out, local_ack_timeout_err), | |
3064 | }; | |
3065 | ||
3066 | static struct rdma_hw_stats *mlx5_ib_alloc_hw_stats(struct ib_device *ibdev, | |
3067 | u8 port_num) | |
3068 | { | |
3069 | BUILD_BUG_ON(ARRAY_SIZE(names) != ARRAY_SIZE(stats_offsets)); | |
3070 | ||
3071 | /* We support only per port stats */ | |
3072 | if (port_num == 0) | |
3073 | return NULL; | |
3074 | ||
3075 | return rdma_alloc_hw_stats_struct(names, ARRAY_SIZE(names), | |
3076 | RDMA_HW_STATS_DEFAULT_LIFESPAN); | |
3077 | } | |
3078 | ||
3079 | static int mlx5_ib_get_hw_stats(struct ib_device *ibdev, | |
3080 | struct rdma_hw_stats *stats, | |
3081 | u8 port, int index) | |
3082 | { | |
3083 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
3084 | int outlen = MLX5_ST_SZ_BYTES(query_q_counter_out); | |
3085 | void *out; | |
3086 | __be32 val; | |
3087 | int ret; | |
3088 | int i; | |
3089 | ||
3090 | if (!port || !stats) | |
3091 | return -ENOSYS; | |
3092 | ||
3093 | out = mlx5_vzalloc(outlen); | |
3094 | if (!out) | |
3095 | return -ENOMEM; | |
3096 | ||
3097 | ret = mlx5_core_query_q_counter(dev->mdev, | |
3098 | dev->port[port - 1].q_cnt_id, 0, | |
3099 | out, outlen); | |
3100 | if (ret) | |
3101 | goto free; | |
3102 | ||
3103 | for (i = 0; i < ARRAY_SIZE(names); i++) { | |
3104 | val = *(__be32 *)(out + stats_offsets[i]); | |
3105 | stats->value[i] = (u64)be32_to_cpu(val); | |
3106 | } | |
3107 | free: | |
3108 | kvfree(out); | |
3109 | return ARRAY_SIZE(names); | |
3110 | } | |
3111 | ||
9603b61d | 3112 | static void *mlx5_ib_add(struct mlx5_core_dev *mdev) |
e126ba97 | 3113 | { |
e126ba97 | 3114 | struct mlx5_ib_dev *dev; |
ebd61f68 AS |
3115 | enum rdma_link_layer ll; |
3116 | int port_type_cap; | |
4babcf97 | 3117 | const char *name; |
e126ba97 EC |
3118 | int err; |
3119 | int i; | |
3120 | ||
ebd61f68 AS |
3121 | port_type_cap = MLX5_CAP_GEN(mdev, port_type); |
3122 | ll = mlx5_port_type_cap_to_rdma_ll(port_type_cap); | |
3123 | ||
e126ba97 EC |
3124 | printk_once(KERN_INFO "%s", mlx5_version); |
3125 | ||
3126 | dev = (struct mlx5_ib_dev *)ib_alloc_device(sizeof(*dev)); | |
3127 | if (!dev) | |
9603b61d | 3128 | return NULL; |
e126ba97 | 3129 | |
9603b61d | 3130 | dev->mdev = mdev; |
e126ba97 | 3131 | |
0837e86a MB |
3132 | dev->port = kcalloc(MLX5_CAP_GEN(mdev, num_ports), sizeof(*dev->port), |
3133 | GFP_KERNEL); | |
3134 | if (!dev->port) | |
3135 | goto err_dealloc; | |
3136 | ||
fc24fc5e | 3137 | rwlock_init(&dev->roce.netdev_lock); |
e126ba97 EC |
3138 | err = get_port_caps(dev); |
3139 | if (err) | |
0837e86a | 3140 | goto err_free_port; |
e126ba97 | 3141 | |
1b5daf11 MD |
3142 | if (mlx5_use_mad_ifc(dev)) |
3143 | get_ext_port_caps(dev); | |
e126ba97 | 3144 | |
4babcf97 AH |
3145 | if (!mlx5_lag_is_active(mdev)) |
3146 | name = "mlx5_%d"; | |
3147 | else | |
3148 | name = "mlx5_bond_%d"; | |
3149 | ||
3150 | strlcpy(dev->ib_dev.name, name, IB_DEVICE_NAME_MAX); | |
e126ba97 EC |
3151 | dev->ib_dev.owner = THIS_MODULE; |
3152 | dev->ib_dev.node_type = RDMA_NODE_IB_CA; | |
c6790aa9 | 3153 | dev->ib_dev.local_dma_lkey = 0 /* not supported for now */; |
938fe83c | 3154 | dev->num_ports = MLX5_CAP_GEN(mdev, num_ports); |
e126ba97 | 3155 | dev->ib_dev.phys_port_cnt = dev->num_ports; |
233d05d2 SM |
3156 | dev->ib_dev.num_comp_vectors = |
3157 | dev->mdev->priv.eq_table.num_comp_vectors; | |
e126ba97 EC |
3158 | dev->ib_dev.dma_device = &mdev->pdev->dev; |
3159 | ||
3160 | dev->ib_dev.uverbs_abi_ver = MLX5_IB_UVERBS_ABI_VERSION; | |
3161 | dev->ib_dev.uverbs_cmd_mask = | |
3162 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
3163 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
3164 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
3165 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
3166 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
41c450fd MS |
3167 | (1ull << IB_USER_VERBS_CMD_CREATE_AH) | |
3168 | (1ull << IB_USER_VERBS_CMD_DESTROY_AH) | | |
e126ba97 | 3169 | (1ull << IB_USER_VERBS_CMD_REG_MR) | |
56e11d62 | 3170 | (1ull << IB_USER_VERBS_CMD_REREG_MR) | |
e126ba97 EC |
3171 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | |
3172 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
3173 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
3174 | (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | | |
3175 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | | |
3176 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
3177 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
3178 | (1ull << IB_USER_VERBS_CMD_QUERY_QP) | | |
3179 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | |
3180 | (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | | |
3181 | (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) | | |
3182 | (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | | |
3183 | (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | | |
3184 | (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | | |
3185 | (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) | | |
3186 | (1ull << IB_USER_VERBS_CMD_CREATE_XSRQ) | | |
3187 | (1ull << IB_USER_VERBS_CMD_OPEN_QP); | |
1707cb4a | 3188 | dev->ib_dev.uverbs_ex_cmd_mask = |
d4584ddf MB |
3189 | (1ull << IB_USER_VERBS_EX_CMD_QUERY_DEVICE) | |
3190 | (1ull << IB_USER_VERBS_EX_CMD_CREATE_CQ) | | |
7d29f349 BW |
3191 | (1ull << IB_USER_VERBS_EX_CMD_CREATE_QP) | |
3192 | (1ull << IB_USER_VERBS_EX_CMD_MODIFY_QP); | |
e126ba97 EC |
3193 | |
3194 | dev->ib_dev.query_device = mlx5_ib_query_device; | |
3195 | dev->ib_dev.query_port = mlx5_ib_query_port; | |
ebd61f68 | 3196 | dev->ib_dev.get_link_layer = mlx5_ib_port_link_layer; |
fc24fc5e AS |
3197 | if (ll == IB_LINK_LAYER_ETHERNET) |
3198 | dev->ib_dev.get_netdev = mlx5_ib_get_netdev; | |
e126ba97 | 3199 | dev->ib_dev.query_gid = mlx5_ib_query_gid; |
3cca2606 AS |
3200 | dev->ib_dev.add_gid = mlx5_ib_add_gid; |
3201 | dev->ib_dev.del_gid = mlx5_ib_del_gid; | |
e126ba97 EC |
3202 | dev->ib_dev.query_pkey = mlx5_ib_query_pkey; |
3203 | dev->ib_dev.modify_device = mlx5_ib_modify_device; | |
3204 | dev->ib_dev.modify_port = mlx5_ib_modify_port; | |
3205 | dev->ib_dev.alloc_ucontext = mlx5_ib_alloc_ucontext; | |
3206 | dev->ib_dev.dealloc_ucontext = mlx5_ib_dealloc_ucontext; | |
3207 | dev->ib_dev.mmap = mlx5_ib_mmap; | |
3208 | dev->ib_dev.alloc_pd = mlx5_ib_alloc_pd; | |
3209 | dev->ib_dev.dealloc_pd = mlx5_ib_dealloc_pd; | |
3210 | dev->ib_dev.create_ah = mlx5_ib_create_ah; | |
3211 | dev->ib_dev.query_ah = mlx5_ib_query_ah; | |
3212 | dev->ib_dev.destroy_ah = mlx5_ib_destroy_ah; | |
3213 | dev->ib_dev.create_srq = mlx5_ib_create_srq; | |
3214 | dev->ib_dev.modify_srq = mlx5_ib_modify_srq; | |
3215 | dev->ib_dev.query_srq = mlx5_ib_query_srq; | |
3216 | dev->ib_dev.destroy_srq = mlx5_ib_destroy_srq; | |
3217 | dev->ib_dev.post_srq_recv = mlx5_ib_post_srq_recv; | |
3218 | dev->ib_dev.create_qp = mlx5_ib_create_qp; | |
3219 | dev->ib_dev.modify_qp = mlx5_ib_modify_qp; | |
3220 | dev->ib_dev.query_qp = mlx5_ib_query_qp; | |
3221 | dev->ib_dev.destroy_qp = mlx5_ib_destroy_qp; | |
3222 | dev->ib_dev.post_send = mlx5_ib_post_send; | |
3223 | dev->ib_dev.post_recv = mlx5_ib_post_recv; | |
3224 | dev->ib_dev.create_cq = mlx5_ib_create_cq; | |
3225 | dev->ib_dev.modify_cq = mlx5_ib_modify_cq; | |
3226 | dev->ib_dev.resize_cq = mlx5_ib_resize_cq; | |
3227 | dev->ib_dev.destroy_cq = mlx5_ib_destroy_cq; | |
3228 | dev->ib_dev.poll_cq = mlx5_ib_poll_cq; | |
3229 | dev->ib_dev.req_notify_cq = mlx5_ib_arm_cq; | |
3230 | dev->ib_dev.get_dma_mr = mlx5_ib_get_dma_mr; | |
3231 | dev->ib_dev.reg_user_mr = mlx5_ib_reg_user_mr; | |
56e11d62 | 3232 | dev->ib_dev.rereg_user_mr = mlx5_ib_rereg_user_mr; |
e126ba97 EC |
3233 | dev->ib_dev.dereg_mr = mlx5_ib_dereg_mr; |
3234 | dev->ib_dev.attach_mcast = mlx5_ib_mcg_attach; | |
3235 | dev->ib_dev.detach_mcast = mlx5_ib_mcg_detach; | |
3236 | dev->ib_dev.process_mad = mlx5_ib_process_mad; | |
9bee178b | 3237 | dev->ib_dev.alloc_mr = mlx5_ib_alloc_mr; |
8a187ee5 | 3238 | dev->ib_dev.map_mr_sg = mlx5_ib_map_mr_sg; |
d5436ba0 | 3239 | dev->ib_dev.check_mr_status = mlx5_ib_check_mr_status; |
7738613e | 3240 | dev->ib_dev.get_port_immutable = mlx5_port_immutable; |
c7342823 | 3241 | dev->ib_dev.get_dev_fw_str = get_dev_fw_str; |
eff901d3 EC |
3242 | if (mlx5_core_is_pf(mdev)) { |
3243 | dev->ib_dev.get_vf_config = mlx5_ib_get_vf_config; | |
3244 | dev->ib_dev.set_vf_link_state = mlx5_ib_set_vf_link_state; | |
3245 | dev->ib_dev.get_vf_stats = mlx5_ib_get_vf_stats; | |
3246 | dev->ib_dev.set_vf_guid = mlx5_ib_set_vf_guid; | |
3247 | } | |
e126ba97 | 3248 | |
7c2344c3 MG |
3249 | dev->ib_dev.disassociate_ucontext = mlx5_ib_disassociate_ucontext; |
3250 | ||
938fe83c | 3251 | mlx5_ib_internal_fill_odp_caps(dev); |
8cdd312c | 3252 | |
d2370e0a MB |
3253 | if (MLX5_CAP_GEN(mdev, imaicl)) { |
3254 | dev->ib_dev.alloc_mw = mlx5_ib_alloc_mw; | |
3255 | dev->ib_dev.dealloc_mw = mlx5_ib_dealloc_mw; | |
3256 | dev->ib_dev.uverbs_cmd_mask |= | |
3257 | (1ull << IB_USER_VERBS_CMD_ALLOC_MW) | | |
3258 | (1ull << IB_USER_VERBS_CMD_DEALLOC_MW); | |
3259 | } | |
3260 | ||
0ad17a8f MB |
3261 | if (MLX5_CAP_GEN(dev->mdev, out_of_seq_cnt) && |
3262 | MLX5_CAP_GEN(dev->mdev, retransmission_q_counters)) { | |
3263 | dev->ib_dev.get_hw_stats = mlx5_ib_get_hw_stats; | |
3264 | dev->ib_dev.alloc_hw_stats = mlx5_ib_alloc_hw_stats; | |
3265 | } | |
3266 | ||
938fe83c | 3267 | if (MLX5_CAP_GEN(mdev, xrc)) { |
e126ba97 EC |
3268 | dev->ib_dev.alloc_xrcd = mlx5_ib_alloc_xrcd; |
3269 | dev->ib_dev.dealloc_xrcd = mlx5_ib_dealloc_xrcd; | |
3270 | dev->ib_dev.uverbs_cmd_mask |= | |
3271 | (1ull << IB_USER_VERBS_CMD_OPEN_XRCD) | | |
3272 | (1ull << IB_USER_VERBS_CMD_CLOSE_XRCD); | |
3273 | } | |
3274 | ||
048ccca8 | 3275 | if (mlx5_ib_port_link_layer(&dev->ib_dev, 1) == |
038d2ef8 MG |
3276 | IB_LINK_LAYER_ETHERNET) { |
3277 | dev->ib_dev.create_flow = mlx5_ib_create_flow; | |
3278 | dev->ib_dev.destroy_flow = mlx5_ib_destroy_flow; | |
79b20a6c YH |
3279 | dev->ib_dev.create_wq = mlx5_ib_create_wq; |
3280 | dev->ib_dev.modify_wq = mlx5_ib_modify_wq; | |
3281 | dev->ib_dev.destroy_wq = mlx5_ib_destroy_wq; | |
c5f90929 YH |
3282 | dev->ib_dev.create_rwq_ind_table = mlx5_ib_create_rwq_ind_table; |
3283 | dev->ib_dev.destroy_rwq_ind_table = mlx5_ib_destroy_rwq_ind_table; | |
038d2ef8 MG |
3284 | dev->ib_dev.uverbs_ex_cmd_mask |= |
3285 | (1ull << IB_USER_VERBS_EX_CMD_CREATE_FLOW) | | |
79b20a6c YH |
3286 | (1ull << IB_USER_VERBS_EX_CMD_DESTROY_FLOW) | |
3287 | (1ull << IB_USER_VERBS_EX_CMD_CREATE_WQ) | | |
3288 | (1ull << IB_USER_VERBS_EX_CMD_MODIFY_WQ) | | |
c5f90929 YH |
3289 | (1ull << IB_USER_VERBS_EX_CMD_DESTROY_WQ) | |
3290 | (1ull << IB_USER_VERBS_EX_CMD_CREATE_RWQ_IND_TBL) | | |
3291 | (1ull << IB_USER_VERBS_EX_CMD_DESTROY_RWQ_IND_TBL); | |
038d2ef8 | 3292 | } |
e126ba97 EC |
3293 | err = init_node_data(dev); |
3294 | if (err) | |
90be7c8a | 3295 | goto err_free_port; |
e126ba97 | 3296 | |
038d2ef8 | 3297 | mutex_init(&dev->flow_db.lock); |
e126ba97 | 3298 | mutex_init(&dev->cap_mask_mutex); |
89ea94a7 MG |
3299 | INIT_LIST_HEAD(&dev->qp_list); |
3300 | spin_lock_init(&dev->reset_flow_resource_lock); | |
e126ba97 | 3301 | |
fc24fc5e | 3302 | if (ll == IB_LINK_LAYER_ETHERNET) { |
45f95acd | 3303 | err = mlx5_enable_eth(dev); |
fc24fc5e | 3304 | if (err) |
90be7c8a | 3305 | goto err_free_port; |
fc24fc5e AS |
3306 | } |
3307 | ||
e126ba97 EC |
3308 | err = create_dev_resources(&dev->devr); |
3309 | if (err) | |
45f95acd | 3310 | goto err_disable_eth; |
e126ba97 | 3311 | |
6aec21f6 | 3312 | err = mlx5_ib_odp_init_one(dev); |
281d1a92 | 3313 | if (err) |
e126ba97 EC |
3314 | goto err_rsrc; |
3315 | ||
0837e86a | 3316 | err = mlx5_ib_alloc_q_counters(dev); |
6aec21f6 HE |
3317 | if (err) |
3318 | goto err_odp; | |
3319 | ||
5fe9dec0 EC |
3320 | dev->mdev->priv.uar = mlx5_get_uars_page(dev->mdev); |
3321 | if (!dev->mdev->priv.uar) | |
3322 | goto err_q_cnt; | |
3323 | ||
3324 | err = mlx5_alloc_bfreg(dev->mdev, &dev->bfreg, false, false); | |
3325 | if (err) | |
3326 | goto err_uar_page; | |
3327 | ||
3328 | err = mlx5_alloc_bfreg(dev->mdev, &dev->fp_bfreg, false, true); | |
3329 | if (err) | |
3330 | goto err_bfreg; | |
3331 | ||
0837e86a MB |
3332 | err = ib_register_device(&dev->ib_dev, NULL); |
3333 | if (err) | |
5fe9dec0 | 3334 | goto err_fp_bfreg; |
0837e86a | 3335 | |
e126ba97 EC |
3336 | err = create_umr_res(dev); |
3337 | if (err) | |
3338 | goto err_dev; | |
3339 | ||
3340 | for (i = 0; i < ARRAY_SIZE(mlx5_class_attributes); i++) { | |
281d1a92 WY |
3341 | err = device_create_file(&dev->ib_dev.dev, |
3342 | mlx5_class_attributes[i]); | |
3343 | if (err) | |
e126ba97 EC |
3344 | goto err_umrc; |
3345 | } | |
3346 | ||
3347 | dev->ib_active = true; | |
3348 | ||
9603b61d | 3349 | return dev; |
e126ba97 EC |
3350 | |
3351 | err_umrc: | |
3352 | destroy_umrc_res(dev); | |
3353 | ||
3354 | err_dev: | |
3355 | ib_unregister_device(&dev->ib_dev); | |
3356 | ||
5fe9dec0 EC |
3357 | err_fp_bfreg: |
3358 | mlx5_free_bfreg(dev->mdev, &dev->fp_bfreg); | |
3359 | ||
3360 | err_bfreg: | |
3361 | mlx5_free_bfreg(dev->mdev, &dev->bfreg); | |
3362 | ||
3363 | err_uar_page: | |
3364 | mlx5_put_uars_page(dev->mdev, dev->mdev->priv.uar); | |
3365 | ||
0837e86a MB |
3366 | err_q_cnt: |
3367 | mlx5_ib_dealloc_q_counters(dev); | |
3368 | ||
6aec21f6 HE |
3369 | err_odp: |
3370 | mlx5_ib_odp_remove_one(dev); | |
3371 | ||
e126ba97 EC |
3372 | err_rsrc: |
3373 | destroy_dev_resources(&dev->devr); | |
3374 | ||
45f95acd | 3375 | err_disable_eth: |
5ec8c83e | 3376 | if (ll == IB_LINK_LAYER_ETHERNET) { |
45f95acd | 3377 | mlx5_disable_eth(dev); |
d012f5d6 | 3378 | mlx5_remove_netdev_notifier(dev); |
5ec8c83e | 3379 | } |
fc24fc5e | 3380 | |
0837e86a MB |
3381 | err_free_port: |
3382 | kfree(dev->port); | |
3383 | ||
9603b61d | 3384 | err_dealloc: |
e126ba97 EC |
3385 | ib_dealloc_device((struct ib_device *)dev); |
3386 | ||
9603b61d | 3387 | return NULL; |
e126ba97 EC |
3388 | } |
3389 | ||
9603b61d | 3390 | static void mlx5_ib_remove(struct mlx5_core_dev *mdev, void *context) |
e126ba97 | 3391 | { |
9603b61d | 3392 | struct mlx5_ib_dev *dev = context; |
fc24fc5e | 3393 | enum rdma_link_layer ll = mlx5_ib_port_link_layer(&dev->ib_dev, 1); |
6aec21f6 | 3394 | |
d012f5d6 | 3395 | mlx5_remove_netdev_notifier(dev); |
e126ba97 | 3396 | ib_unregister_device(&dev->ib_dev); |
5fe9dec0 EC |
3397 | mlx5_free_bfreg(dev->mdev, &dev->fp_bfreg); |
3398 | mlx5_free_bfreg(dev->mdev, &dev->bfreg); | |
3399 | mlx5_put_uars_page(dev->mdev, mdev->priv.uar); | |
0837e86a | 3400 | mlx5_ib_dealloc_q_counters(dev); |
eefd56e5 | 3401 | destroy_umrc_res(dev); |
6aec21f6 | 3402 | mlx5_ib_odp_remove_one(dev); |
e126ba97 | 3403 | destroy_dev_resources(&dev->devr); |
fc24fc5e | 3404 | if (ll == IB_LINK_LAYER_ETHERNET) |
45f95acd | 3405 | mlx5_disable_eth(dev); |
0837e86a | 3406 | kfree(dev->port); |
e126ba97 EC |
3407 | ib_dealloc_device(&dev->ib_dev); |
3408 | } | |
3409 | ||
9603b61d JM |
3410 | static struct mlx5_interface mlx5_ib_interface = { |
3411 | .add = mlx5_ib_add, | |
3412 | .remove = mlx5_ib_remove, | |
3413 | .event = mlx5_ib_event, | |
d9aaed83 AK |
3414 | #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING |
3415 | .pfault = mlx5_ib_pfault, | |
3416 | #endif | |
64613d94 | 3417 | .protocol = MLX5_INTERFACE_PROTOCOL_IB, |
e126ba97 EC |
3418 | }; |
3419 | ||
3420 | static int __init mlx5_ib_init(void) | |
3421 | { | |
6aec21f6 HE |
3422 | int err; |
3423 | ||
9603b61d JM |
3424 | if (deprecated_prof_sel != 2) |
3425 | pr_warn("prof_sel is deprecated for mlx5_ib, set it for mlx5_core\n"); | |
3426 | ||
6aec21f6 | 3427 | err = mlx5_register_interface(&mlx5_ib_interface); |
6aec21f6 | 3428 | |
6aec21f6 | 3429 | return err; |
e126ba97 EC |
3430 | } |
3431 | ||
3432 | static void __exit mlx5_ib_cleanup(void) | |
3433 | { | |
9603b61d | 3434 | mlx5_unregister_interface(&mlx5_ib_interface); |
e126ba97 EC |
3435 | } |
3436 | ||
3437 | module_init(mlx5_ib_init); | |
3438 | module_exit(mlx5_ib_cleanup); |