Commit | Line | Data |
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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> |
6e84f315 | 44 | #include <linux/sched/mm.h> |
0881e7bd | 45 | #include <linux/sched/task.h> |
7c2344c3 | 46 | #include <linux/delay.h> |
e126ba97 | 47 | #include <rdma/ib_user_verbs.h> |
3f89a643 | 48 | #include <rdma/ib_addr.h> |
2811ba51 | 49 | #include <rdma/ib_cache.h> |
ada68c31 | 50 | #include <linux/mlx5/port.h> |
1b5daf11 | 51 | #include <linux/mlx5/vport.h> |
7c2344c3 | 52 | #include <linux/list.h> |
e126ba97 EC |
53 | #include <rdma/ib_smi.h> |
54 | #include <rdma/ib_umem.h> | |
038d2ef8 MG |
55 | #include <linux/in.h> |
56 | #include <linux/etherdevice.h> | |
57 | #include <linux/mlx5/fs.h> | |
78984898 | 58 | #include <linux/mlx5/vport.h> |
e126ba97 | 59 | #include "mlx5_ib.h" |
e1f24a79 | 60 | #include "cmd.h" |
e126ba97 EC |
61 | |
62 | #define DRIVER_NAME "mlx5_ib" | |
169a1d85 AV |
63 | #define DRIVER_VERSION "2.2-1" |
64 | #define DRIVER_RELDATE "Feb 2014" | |
e126ba97 EC |
65 | |
66 | MODULE_AUTHOR("Eli Cohen <eli@mellanox.com>"); | |
67 | MODULE_DESCRIPTION("Mellanox Connect-IB HCA IB driver"); | |
68 | MODULE_LICENSE("Dual BSD/GPL"); | |
69 | MODULE_VERSION(DRIVER_VERSION); | |
70 | ||
e126ba97 EC |
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 | ||
f1b65df5 NO |
169 | static int translate_eth_proto_oper(u32 eth_proto_oper, u8 *active_speed, |
170 | u8 *active_width) | |
171 | { | |
172 | switch (eth_proto_oper) { | |
173 | case MLX5E_PROT_MASK(MLX5E_1000BASE_CX_SGMII): | |
174 | case MLX5E_PROT_MASK(MLX5E_1000BASE_KX): | |
175 | case MLX5E_PROT_MASK(MLX5E_100BASE_TX): | |
176 | case MLX5E_PROT_MASK(MLX5E_1000BASE_T): | |
177 | *active_width = IB_WIDTH_1X; | |
178 | *active_speed = IB_SPEED_SDR; | |
179 | break; | |
180 | case MLX5E_PROT_MASK(MLX5E_10GBASE_T): | |
181 | case MLX5E_PROT_MASK(MLX5E_10GBASE_CX4): | |
182 | case MLX5E_PROT_MASK(MLX5E_10GBASE_KX4): | |
183 | case MLX5E_PROT_MASK(MLX5E_10GBASE_KR): | |
184 | case MLX5E_PROT_MASK(MLX5E_10GBASE_CR): | |
185 | case MLX5E_PROT_MASK(MLX5E_10GBASE_SR): | |
186 | case MLX5E_PROT_MASK(MLX5E_10GBASE_ER): | |
187 | *active_width = IB_WIDTH_1X; | |
188 | *active_speed = IB_SPEED_QDR; | |
189 | break; | |
190 | case MLX5E_PROT_MASK(MLX5E_25GBASE_CR): | |
191 | case MLX5E_PROT_MASK(MLX5E_25GBASE_KR): | |
192 | case MLX5E_PROT_MASK(MLX5E_25GBASE_SR): | |
193 | *active_width = IB_WIDTH_1X; | |
194 | *active_speed = IB_SPEED_EDR; | |
195 | break; | |
196 | case MLX5E_PROT_MASK(MLX5E_40GBASE_CR4): | |
197 | case MLX5E_PROT_MASK(MLX5E_40GBASE_KR4): | |
198 | case MLX5E_PROT_MASK(MLX5E_40GBASE_SR4): | |
199 | case MLX5E_PROT_MASK(MLX5E_40GBASE_LR4): | |
200 | *active_width = IB_WIDTH_4X; | |
201 | *active_speed = IB_SPEED_QDR; | |
202 | break; | |
203 | case MLX5E_PROT_MASK(MLX5E_50GBASE_CR2): | |
204 | case MLX5E_PROT_MASK(MLX5E_50GBASE_KR2): | |
205 | case MLX5E_PROT_MASK(MLX5E_50GBASE_SR2): | |
206 | *active_width = IB_WIDTH_1X; | |
207 | *active_speed = IB_SPEED_HDR; | |
208 | break; | |
209 | case MLX5E_PROT_MASK(MLX5E_56GBASE_R4): | |
210 | *active_width = IB_WIDTH_4X; | |
211 | *active_speed = IB_SPEED_FDR; | |
212 | break; | |
213 | case MLX5E_PROT_MASK(MLX5E_100GBASE_CR4): | |
214 | case MLX5E_PROT_MASK(MLX5E_100GBASE_SR4): | |
215 | case MLX5E_PROT_MASK(MLX5E_100GBASE_KR4): | |
216 | case MLX5E_PROT_MASK(MLX5E_100GBASE_LR4): | |
217 | *active_width = IB_WIDTH_4X; | |
218 | *active_speed = IB_SPEED_EDR; | |
219 | break; | |
220 | default: | |
221 | return -EINVAL; | |
222 | } | |
223 | ||
224 | return 0; | |
225 | } | |
226 | ||
50f22fd8 NO |
227 | static void mlx5_query_port_roce(struct ib_device *device, u8 port_num, |
228 | struct ib_port_attr *props) | |
3f89a643 AS |
229 | { |
230 | struct mlx5_ib_dev *dev = to_mdev(device); | |
f1b65df5 | 231 | struct mlx5_core_dev *mdev = dev->mdev; |
88621dfe | 232 | struct net_device *ndev, *upper; |
3f89a643 | 233 | enum ib_mtu ndev_ib_mtu; |
c876a1b7 | 234 | u16 qkey_viol_cntr; |
f1b65df5 | 235 | u32 eth_prot_oper; |
3f89a643 | 236 | |
f1b65df5 NO |
237 | /* Possible bad flows are checked before filling out props so in case |
238 | * of an error it will still be zeroed out. | |
50f22fd8 | 239 | */ |
f1b65df5 NO |
240 | if (mlx5_query_port_eth_proto_oper(mdev, ð_prot_oper, port_num)) |
241 | return; | |
242 | ||
243 | translate_eth_proto_oper(eth_prot_oper, &props->active_speed, | |
244 | &props->active_width); | |
3f89a643 AS |
245 | |
246 | props->port_cap_flags |= IB_PORT_CM_SUP; | |
247 | props->port_cap_flags |= IB_PORT_IP_BASED_GIDS; | |
248 | ||
249 | props->gid_tbl_len = MLX5_CAP_ROCE(dev->mdev, | |
250 | roce_address_table_size); | |
251 | props->max_mtu = IB_MTU_4096; | |
252 | props->max_msg_sz = 1 << MLX5_CAP_GEN(dev->mdev, log_max_msg); | |
253 | props->pkey_tbl_len = 1; | |
254 | props->state = IB_PORT_DOWN; | |
255 | props->phys_state = 3; | |
256 | ||
c876a1b7 LR |
257 | mlx5_query_nic_vport_qkey_viol_cntr(dev->mdev, &qkey_viol_cntr); |
258 | props->qkey_viol_cntr = qkey_viol_cntr; | |
3f89a643 AS |
259 | |
260 | ndev = mlx5_ib_get_netdev(device, port_num); | |
261 | if (!ndev) | |
50f22fd8 | 262 | return; |
3f89a643 | 263 | |
88621dfe AH |
264 | if (mlx5_lag_is_active(dev->mdev)) { |
265 | rcu_read_lock(); | |
266 | upper = netdev_master_upper_dev_get_rcu(ndev); | |
267 | if (upper) { | |
268 | dev_put(ndev); | |
269 | ndev = upper; | |
270 | dev_hold(ndev); | |
271 | } | |
272 | rcu_read_unlock(); | |
273 | } | |
274 | ||
3f89a643 AS |
275 | if (netif_running(ndev) && netif_carrier_ok(ndev)) { |
276 | props->state = IB_PORT_ACTIVE; | |
277 | props->phys_state = 5; | |
278 | } | |
279 | ||
280 | ndev_ib_mtu = iboe_get_mtu(ndev->mtu); | |
281 | ||
282 | dev_put(ndev); | |
283 | ||
284 | props->active_mtu = min(props->max_mtu, ndev_ib_mtu); | |
3f89a643 AS |
285 | } |
286 | ||
3cca2606 AS |
287 | static void ib_gid_to_mlx5_roce_addr(const union ib_gid *gid, |
288 | const struct ib_gid_attr *attr, | |
289 | void *mlx5_addr) | |
290 | { | |
291 | #define MLX5_SET_RA(p, f, v) MLX5_SET(roce_addr_layout, p, f, v) | |
292 | char *mlx5_addr_l3_addr = MLX5_ADDR_OF(roce_addr_layout, mlx5_addr, | |
293 | source_l3_address); | |
294 | void *mlx5_addr_mac = MLX5_ADDR_OF(roce_addr_layout, mlx5_addr, | |
295 | source_mac_47_32); | |
296 | ||
297 | if (!gid) | |
298 | return; | |
299 | ||
300 | ether_addr_copy(mlx5_addr_mac, attr->ndev->dev_addr); | |
301 | ||
302 | if (is_vlan_dev(attr->ndev)) { | |
303 | MLX5_SET_RA(mlx5_addr, vlan_valid, 1); | |
304 | MLX5_SET_RA(mlx5_addr, vlan_id, vlan_dev_vlan_id(attr->ndev)); | |
305 | } | |
306 | ||
307 | switch (attr->gid_type) { | |
308 | case IB_GID_TYPE_IB: | |
309 | MLX5_SET_RA(mlx5_addr, roce_version, MLX5_ROCE_VERSION_1); | |
310 | break; | |
311 | case IB_GID_TYPE_ROCE_UDP_ENCAP: | |
312 | MLX5_SET_RA(mlx5_addr, roce_version, MLX5_ROCE_VERSION_2); | |
313 | break; | |
314 | ||
315 | default: | |
316 | WARN_ON(true); | |
317 | } | |
318 | ||
319 | if (attr->gid_type != IB_GID_TYPE_IB) { | |
320 | if (ipv6_addr_v4mapped((void *)gid)) | |
321 | MLX5_SET_RA(mlx5_addr, roce_l3_type, | |
322 | MLX5_ROCE_L3_TYPE_IPV4); | |
323 | else | |
324 | MLX5_SET_RA(mlx5_addr, roce_l3_type, | |
325 | MLX5_ROCE_L3_TYPE_IPV6); | |
326 | } | |
327 | ||
328 | if ((attr->gid_type == IB_GID_TYPE_IB) || | |
329 | !ipv6_addr_v4mapped((void *)gid)) | |
330 | memcpy(mlx5_addr_l3_addr, gid, sizeof(*gid)); | |
331 | else | |
332 | memcpy(&mlx5_addr_l3_addr[12], &gid->raw[12], 4); | |
333 | } | |
334 | ||
335 | static int set_roce_addr(struct ib_device *device, u8 port_num, | |
336 | unsigned int index, | |
337 | const union ib_gid *gid, | |
338 | const struct ib_gid_attr *attr) | |
339 | { | |
c4f287c4 SM |
340 | struct mlx5_ib_dev *dev = to_mdev(device); |
341 | u32 in[MLX5_ST_SZ_DW(set_roce_address_in)] = {0}; | |
342 | u32 out[MLX5_ST_SZ_DW(set_roce_address_out)] = {0}; | |
3cca2606 AS |
343 | void *in_addr = MLX5_ADDR_OF(set_roce_address_in, in, roce_address); |
344 | enum rdma_link_layer ll = mlx5_ib_port_link_layer(device, port_num); | |
345 | ||
346 | if (ll != IB_LINK_LAYER_ETHERNET) | |
347 | return -EINVAL; | |
348 | ||
3cca2606 AS |
349 | ib_gid_to_mlx5_roce_addr(gid, attr, in_addr); |
350 | ||
351 | MLX5_SET(set_roce_address_in, in, roce_address_index, index); | |
352 | MLX5_SET(set_roce_address_in, in, opcode, MLX5_CMD_OP_SET_ROCE_ADDRESS); | |
3cca2606 AS |
353 | return mlx5_cmd_exec(dev->mdev, in, sizeof(in), out, sizeof(out)); |
354 | } | |
355 | ||
356 | static int mlx5_ib_add_gid(struct ib_device *device, u8 port_num, | |
357 | unsigned int index, const union ib_gid *gid, | |
358 | const struct ib_gid_attr *attr, | |
359 | __always_unused void **context) | |
360 | { | |
361 | return set_roce_addr(device, port_num, index, gid, attr); | |
362 | } | |
363 | ||
364 | static int mlx5_ib_del_gid(struct ib_device *device, u8 port_num, | |
365 | unsigned int index, __always_unused void **context) | |
366 | { | |
367 | return set_roce_addr(device, port_num, index, NULL, NULL); | |
368 | } | |
369 | ||
2811ba51 AS |
370 | __be16 mlx5_get_roce_udp_sport(struct mlx5_ib_dev *dev, u8 port_num, |
371 | int index) | |
372 | { | |
373 | struct ib_gid_attr attr; | |
374 | union ib_gid gid; | |
375 | ||
376 | if (ib_get_cached_gid(&dev->ib_dev, port_num, index, &gid, &attr)) | |
377 | return 0; | |
378 | ||
379 | if (!attr.ndev) | |
380 | return 0; | |
381 | ||
382 | dev_put(attr.ndev); | |
383 | ||
384 | if (attr.gid_type != IB_GID_TYPE_ROCE_UDP_ENCAP) | |
385 | return 0; | |
386 | ||
387 | return cpu_to_be16(MLX5_CAP_ROCE(dev->mdev, r_roce_min_src_udp_port)); | |
388 | } | |
389 | ||
ed88451e MD |
390 | int mlx5_get_roce_gid_type(struct mlx5_ib_dev *dev, u8 port_num, |
391 | int index, enum ib_gid_type *gid_type) | |
392 | { | |
393 | struct ib_gid_attr attr; | |
394 | union ib_gid gid; | |
395 | int ret; | |
396 | ||
397 | ret = ib_get_cached_gid(&dev->ib_dev, port_num, index, &gid, &attr); | |
398 | if (ret) | |
399 | return ret; | |
400 | ||
401 | if (!attr.ndev) | |
402 | return -ENODEV; | |
403 | ||
404 | dev_put(attr.ndev); | |
405 | ||
406 | *gid_type = attr.gid_type; | |
407 | ||
408 | return 0; | |
409 | } | |
410 | ||
1b5daf11 MD |
411 | static int mlx5_use_mad_ifc(struct mlx5_ib_dev *dev) |
412 | { | |
7fae6655 NO |
413 | if (MLX5_CAP_GEN(dev->mdev, port_type) == MLX5_CAP_PORT_TYPE_IB) |
414 | return !MLX5_CAP_GEN(dev->mdev, ib_virt); | |
415 | return 0; | |
1b5daf11 MD |
416 | } |
417 | ||
418 | enum { | |
419 | MLX5_VPORT_ACCESS_METHOD_MAD, | |
420 | MLX5_VPORT_ACCESS_METHOD_HCA, | |
421 | MLX5_VPORT_ACCESS_METHOD_NIC, | |
422 | }; | |
423 | ||
424 | static int mlx5_get_vport_access_method(struct ib_device *ibdev) | |
425 | { | |
426 | if (mlx5_use_mad_ifc(to_mdev(ibdev))) | |
427 | return MLX5_VPORT_ACCESS_METHOD_MAD; | |
428 | ||
ebd61f68 | 429 | if (mlx5_ib_port_link_layer(ibdev, 1) == |
1b5daf11 MD |
430 | IB_LINK_LAYER_ETHERNET) |
431 | return MLX5_VPORT_ACCESS_METHOD_NIC; | |
432 | ||
433 | return MLX5_VPORT_ACCESS_METHOD_HCA; | |
434 | } | |
435 | ||
da7525d2 EBE |
436 | static void get_atomic_caps(struct mlx5_ib_dev *dev, |
437 | struct ib_device_attr *props) | |
438 | { | |
439 | u8 tmp; | |
440 | u8 atomic_operations = MLX5_CAP_ATOMIC(dev->mdev, atomic_operations); | |
441 | u8 atomic_size_qp = MLX5_CAP_ATOMIC(dev->mdev, atomic_size_qp); | |
442 | u8 atomic_req_8B_endianness_mode = | |
443 | MLX5_CAP_ATOMIC(dev->mdev, atomic_req_8B_endianess_mode); | |
444 | ||
445 | /* Check if HW supports 8 bytes standard atomic operations and capable | |
446 | * of host endianness respond | |
447 | */ | |
448 | tmp = MLX5_ATOMIC_OPS_CMP_SWAP | MLX5_ATOMIC_OPS_FETCH_ADD; | |
449 | if (((atomic_operations & tmp) == tmp) && | |
450 | (atomic_size_qp & MLX5_ATOMIC_SIZE_QP_8BYTES) && | |
451 | (atomic_req_8B_endianness_mode)) { | |
452 | props->atomic_cap = IB_ATOMIC_HCA; | |
453 | } else { | |
454 | props->atomic_cap = IB_ATOMIC_NONE; | |
455 | } | |
456 | } | |
457 | ||
1b5daf11 MD |
458 | static int mlx5_query_system_image_guid(struct ib_device *ibdev, |
459 | __be64 *sys_image_guid) | |
460 | { | |
461 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
462 | struct mlx5_core_dev *mdev = dev->mdev; | |
463 | u64 tmp; | |
464 | int err; | |
465 | ||
466 | switch (mlx5_get_vport_access_method(ibdev)) { | |
467 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
468 | return mlx5_query_mad_ifc_system_image_guid(ibdev, | |
469 | sys_image_guid); | |
470 | ||
471 | case MLX5_VPORT_ACCESS_METHOD_HCA: | |
472 | err = mlx5_query_hca_vport_system_image_guid(mdev, &tmp); | |
3f89a643 AS |
473 | break; |
474 | ||
475 | case MLX5_VPORT_ACCESS_METHOD_NIC: | |
476 | err = mlx5_query_nic_vport_system_image_guid(mdev, &tmp); | |
477 | break; | |
1b5daf11 MD |
478 | |
479 | default: | |
480 | return -EINVAL; | |
481 | } | |
3f89a643 AS |
482 | |
483 | if (!err) | |
484 | *sys_image_guid = cpu_to_be64(tmp); | |
485 | ||
486 | return err; | |
487 | ||
1b5daf11 MD |
488 | } |
489 | ||
490 | static int mlx5_query_max_pkeys(struct ib_device *ibdev, | |
491 | u16 *max_pkeys) | |
492 | { | |
493 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
494 | struct mlx5_core_dev *mdev = dev->mdev; | |
495 | ||
496 | switch (mlx5_get_vport_access_method(ibdev)) { | |
497 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
498 | return mlx5_query_mad_ifc_max_pkeys(ibdev, max_pkeys); | |
499 | ||
500 | case MLX5_VPORT_ACCESS_METHOD_HCA: | |
501 | case MLX5_VPORT_ACCESS_METHOD_NIC: | |
502 | *max_pkeys = mlx5_to_sw_pkey_sz(MLX5_CAP_GEN(mdev, | |
503 | pkey_table_size)); | |
504 | return 0; | |
505 | ||
506 | default: | |
507 | return -EINVAL; | |
508 | } | |
509 | } | |
510 | ||
511 | static int mlx5_query_vendor_id(struct ib_device *ibdev, | |
512 | u32 *vendor_id) | |
513 | { | |
514 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
515 | ||
516 | switch (mlx5_get_vport_access_method(ibdev)) { | |
517 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
518 | return mlx5_query_mad_ifc_vendor_id(ibdev, vendor_id); | |
519 | ||
520 | case MLX5_VPORT_ACCESS_METHOD_HCA: | |
521 | case MLX5_VPORT_ACCESS_METHOD_NIC: | |
522 | return mlx5_core_query_vendor_id(dev->mdev, vendor_id); | |
523 | ||
524 | default: | |
525 | return -EINVAL; | |
526 | } | |
527 | } | |
528 | ||
529 | static int mlx5_query_node_guid(struct mlx5_ib_dev *dev, | |
530 | __be64 *node_guid) | |
531 | { | |
532 | u64 tmp; | |
533 | int err; | |
534 | ||
535 | switch (mlx5_get_vport_access_method(&dev->ib_dev)) { | |
536 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
537 | return mlx5_query_mad_ifc_node_guid(dev, node_guid); | |
538 | ||
539 | case MLX5_VPORT_ACCESS_METHOD_HCA: | |
540 | err = mlx5_query_hca_vport_node_guid(dev->mdev, &tmp); | |
3f89a643 AS |
541 | break; |
542 | ||
543 | case MLX5_VPORT_ACCESS_METHOD_NIC: | |
544 | err = mlx5_query_nic_vport_node_guid(dev->mdev, &tmp); | |
545 | break; | |
1b5daf11 MD |
546 | |
547 | default: | |
548 | return -EINVAL; | |
549 | } | |
3f89a643 AS |
550 | |
551 | if (!err) | |
552 | *node_guid = cpu_to_be64(tmp); | |
553 | ||
554 | return err; | |
1b5daf11 MD |
555 | } |
556 | ||
557 | struct mlx5_reg_node_desc { | |
bd99fdea | 558 | u8 desc[IB_DEVICE_NODE_DESC_MAX]; |
1b5daf11 MD |
559 | }; |
560 | ||
561 | static int mlx5_query_node_desc(struct mlx5_ib_dev *dev, char *node_desc) | |
562 | { | |
563 | struct mlx5_reg_node_desc in; | |
564 | ||
565 | if (mlx5_use_mad_ifc(dev)) | |
566 | return mlx5_query_mad_ifc_node_desc(dev, node_desc); | |
567 | ||
568 | memset(&in, 0, sizeof(in)); | |
569 | ||
570 | return mlx5_core_access_reg(dev->mdev, &in, sizeof(in), node_desc, | |
571 | sizeof(struct mlx5_reg_node_desc), | |
572 | MLX5_REG_NODE_DESC, 0, 0); | |
573 | } | |
574 | ||
e126ba97 | 575 | static int mlx5_ib_query_device(struct ib_device *ibdev, |
2528e33e MB |
576 | struct ib_device_attr *props, |
577 | struct ib_udata *uhw) | |
e126ba97 EC |
578 | { |
579 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
938fe83c | 580 | struct mlx5_core_dev *mdev = dev->mdev; |
e126ba97 | 581 | int err = -ENOMEM; |
288c01b7 | 582 | int max_sq_desc; |
e126ba97 EC |
583 | int max_rq_sg; |
584 | int max_sq_sg; | |
e0238a6a | 585 | u64 min_page_size = 1ull << MLX5_CAP_GEN(mdev, log_pg_sz); |
402ca536 BW |
586 | struct mlx5_ib_query_device_resp resp = {}; |
587 | size_t resp_len; | |
588 | u64 max_tso; | |
e126ba97 | 589 | |
402ca536 BW |
590 | resp_len = sizeof(resp.comp_mask) + sizeof(resp.response_length); |
591 | if (uhw->outlen && uhw->outlen < resp_len) | |
592 | return -EINVAL; | |
593 | else | |
594 | resp.response_length = resp_len; | |
595 | ||
596 | if (uhw->inlen && !ib_is_udata_cleared(uhw, 0, uhw->inlen)) | |
2528e33e MB |
597 | return -EINVAL; |
598 | ||
1b5daf11 MD |
599 | memset(props, 0, sizeof(*props)); |
600 | err = mlx5_query_system_image_guid(ibdev, | |
601 | &props->sys_image_guid); | |
602 | if (err) | |
603 | return err; | |
e126ba97 | 604 | |
1b5daf11 | 605 | err = mlx5_query_max_pkeys(ibdev, &props->max_pkeys); |
e126ba97 | 606 | if (err) |
1b5daf11 | 607 | return err; |
e126ba97 | 608 | |
1b5daf11 MD |
609 | err = mlx5_query_vendor_id(ibdev, &props->vendor_id); |
610 | if (err) | |
611 | return err; | |
e126ba97 | 612 | |
9603b61d JM |
613 | props->fw_ver = ((u64)fw_rev_maj(dev->mdev) << 32) | |
614 | (fw_rev_min(dev->mdev) << 16) | | |
615 | fw_rev_sub(dev->mdev); | |
e126ba97 EC |
616 | props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | |
617 | IB_DEVICE_PORT_ACTIVE_EVENT | | |
618 | IB_DEVICE_SYS_IMAGE_GUID | | |
1a4c3a3d | 619 | IB_DEVICE_RC_RNR_NAK_GEN; |
938fe83c SM |
620 | |
621 | if (MLX5_CAP_GEN(mdev, pkv)) | |
e126ba97 | 622 | props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; |
938fe83c | 623 | if (MLX5_CAP_GEN(mdev, qkv)) |
e126ba97 | 624 | props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; |
938fe83c | 625 | if (MLX5_CAP_GEN(mdev, apm)) |
e126ba97 | 626 | props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; |
938fe83c | 627 | if (MLX5_CAP_GEN(mdev, xrc)) |
e126ba97 | 628 | props->device_cap_flags |= IB_DEVICE_XRC; |
d2370e0a MB |
629 | if (MLX5_CAP_GEN(mdev, imaicl)) { |
630 | props->device_cap_flags |= IB_DEVICE_MEM_WINDOW | | |
631 | IB_DEVICE_MEM_WINDOW_TYPE_2B; | |
632 | props->max_mw = 1 << MLX5_CAP_GEN(mdev, log_max_mkey); | |
b005d316 SG |
633 | /* We support 'Gappy' memory registration too */ |
634 | props->device_cap_flags |= IB_DEVICE_SG_GAPS_REG; | |
d2370e0a | 635 | } |
e126ba97 | 636 | props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; |
938fe83c | 637 | if (MLX5_CAP_GEN(mdev, sho)) { |
2dea9094 SG |
638 | props->device_cap_flags |= IB_DEVICE_SIGNATURE_HANDOVER; |
639 | /* At this stage no support for signature handover */ | |
640 | props->sig_prot_cap = IB_PROT_T10DIF_TYPE_1 | | |
641 | IB_PROT_T10DIF_TYPE_2 | | |
642 | IB_PROT_T10DIF_TYPE_3; | |
643 | props->sig_guard_cap = IB_GUARD_T10DIF_CRC | | |
644 | IB_GUARD_T10DIF_CSUM; | |
645 | } | |
938fe83c | 646 | if (MLX5_CAP_GEN(mdev, block_lb_mc)) |
f360d88a | 647 | props->device_cap_flags |= IB_DEVICE_BLOCK_MULTICAST_LOOPBACK; |
e126ba97 | 648 | |
402ca536 | 649 | if (MLX5_CAP_GEN(dev->mdev, eth_net_offloads)) { |
e8161334 NO |
650 | if (MLX5_CAP_ETH(mdev, csum_cap)) { |
651 | /* Legacy bit to support old userspace libraries */ | |
88115fe7 | 652 | props->device_cap_flags |= IB_DEVICE_RAW_IP_CSUM; |
e8161334 NO |
653 | props->raw_packet_caps |= IB_RAW_PACKET_CAP_IP_CSUM; |
654 | } | |
655 | ||
656 | if (MLX5_CAP_ETH(dev->mdev, vlan_cap)) | |
657 | props->raw_packet_caps |= | |
658 | IB_RAW_PACKET_CAP_CVLAN_STRIPPING; | |
88115fe7 | 659 | |
402ca536 BW |
660 | if (field_avail(typeof(resp), tso_caps, uhw->outlen)) { |
661 | max_tso = MLX5_CAP_ETH(mdev, max_lso_cap); | |
662 | if (max_tso) { | |
663 | resp.tso_caps.max_tso = 1 << max_tso; | |
664 | resp.tso_caps.supported_qpts |= | |
665 | 1 << IB_QPT_RAW_PACKET; | |
666 | resp.response_length += sizeof(resp.tso_caps); | |
667 | } | |
668 | } | |
31f69a82 YH |
669 | |
670 | if (field_avail(typeof(resp), rss_caps, uhw->outlen)) { | |
671 | resp.rss_caps.rx_hash_function = | |
672 | MLX5_RX_HASH_FUNC_TOEPLITZ; | |
673 | resp.rss_caps.rx_hash_fields_mask = | |
674 | MLX5_RX_HASH_SRC_IPV4 | | |
675 | MLX5_RX_HASH_DST_IPV4 | | |
676 | MLX5_RX_HASH_SRC_IPV6 | | |
677 | MLX5_RX_HASH_DST_IPV6 | | |
678 | MLX5_RX_HASH_SRC_PORT_TCP | | |
679 | MLX5_RX_HASH_DST_PORT_TCP | | |
680 | MLX5_RX_HASH_SRC_PORT_UDP | | |
681 | MLX5_RX_HASH_DST_PORT_UDP; | |
682 | resp.response_length += sizeof(resp.rss_caps); | |
683 | } | |
684 | } else { | |
685 | if (field_avail(typeof(resp), tso_caps, uhw->outlen)) | |
686 | resp.response_length += sizeof(resp.tso_caps); | |
687 | if (field_avail(typeof(resp), rss_caps, uhw->outlen)) | |
688 | resp.response_length += sizeof(resp.rss_caps); | |
402ca536 BW |
689 | } |
690 | ||
f0313965 ES |
691 | if (MLX5_CAP_GEN(mdev, ipoib_basic_offloads)) { |
692 | props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM; | |
693 | props->device_cap_flags |= IB_DEVICE_UD_TSO; | |
694 | } | |
695 | ||
cff5a0f3 | 696 | if (MLX5_CAP_GEN(dev->mdev, eth_net_offloads) && |
e8161334 NO |
697 | MLX5_CAP_ETH(dev->mdev, scatter_fcs)) { |
698 | /* Legacy bit to support old userspace libraries */ | |
cff5a0f3 | 699 | props->device_cap_flags |= IB_DEVICE_RAW_SCATTER_FCS; |
e8161334 NO |
700 | props->raw_packet_caps |= IB_RAW_PACKET_CAP_SCATTER_FCS; |
701 | } | |
cff5a0f3 | 702 | |
da6d6ba3 MG |
703 | if (mlx5_get_flow_namespace(dev->mdev, MLX5_FLOW_NAMESPACE_BYPASS)) |
704 | props->device_cap_flags |= IB_DEVICE_MANAGED_FLOW_STEERING; | |
705 | ||
1b5daf11 MD |
706 | props->vendor_part_id = mdev->pdev->device; |
707 | props->hw_ver = mdev->pdev->revision; | |
e126ba97 EC |
708 | |
709 | props->max_mr_size = ~0ull; | |
e0238a6a | 710 | props->page_size_cap = ~(min_page_size - 1); |
938fe83c SM |
711 | props->max_qp = 1 << MLX5_CAP_GEN(mdev, log_max_qp); |
712 | props->max_qp_wr = 1 << MLX5_CAP_GEN(mdev, log_max_qp_sz); | |
713 | max_rq_sg = MLX5_CAP_GEN(mdev, max_wqe_sz_rq) / | |
714 | sizeof(struct mlx5_wqe_data_seg); | |
288c01b7 EC |
715 | max_sq_desc = min_t(int, MLX5_CAP_GEN(mdev, max_wqe_sz_sq), 512); |
716 | max_sq_sg = (max_sq_desc - sizeof(struct mlx5_wqe_ctrl_seg) - | |
717 | sizeof(struct mlx5_wqe_raddr_seg)) / | |
718 | sizeof(struct mlx5_wqe_data_seg); | |
e126ba97 | 719 | props->max_sge = min(max_rq_sg, max_sq_sg); |
986ef95e | 720 | props->max_sge_rd = MLX5_MAX_SGE_RD; |
938fe83c | 721 | props->max_cq = 1 << MLX5_CAP_GEN(mdev, log_max_cq); |
9f177686 | 722 | props->max_cqe = (1 << MLX5_CAP_GEN(mdev, log_max_cq_sz)) - 1; |
938fe83c SM |
723 | props->max_mr = 1 << MLX5_CAP_GEN(mdev, log_max_mkey); |
724 | props->max_pd = 1 << MLX5_CAP_GEN(mdev, log_max_pd); | |
725 | props->max_qp_rd_atom = 1 << MLX5_CAP_GEN(mdev, log_max_ra_req_qp); | |
726 | props->max_qp_init_rd_atom = 1 << MLX5_CAP_GEN(mdev, log_max_ra_res_qp); | |
727 | props->max_srq = 1 << MLX5_CAP_GEN(mdev, log_max_srq); | |
728 | props->max_srq_wr = (1 << MLX5_CAP_GEN(mdev, log_max_srq_sz)) - 1; | |
729 | props->local_ca_ack_delay = MLX5_CAP_GEN(mdev, local_ca_ack_delay); | |
e126ba97 | 730 | props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; |
e126ba97 | 731 | props->max_srq_sge = max_rq_sg - 1; |
911f4331 SG |
732 | props->max_fast_reg_page_list_len = |
733 | 1 << MLX5_CAP_GEN(mdev, log_max_klm_list_size); | |
da7525d2 | 734 | get_atomic_caps(dev, props); |
81bea28f | 735 | props->masked_atomic_cap = IB_ATOMIC_NONE; |
938fe83c SM |
736 | props->max_mcast_grp = 1 << MLX5_CAP_GEN(mdev, log_max_mcg); |
737 | props->max_mcast_qp_attach = MLX5_CAP_GEN(mdev, max_qp_mcg); | |
e126ba97 EC |
738 | props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * |
739 | props->max_mcast_grp; | |
740 | props->max_map_per_fmr = INT_MAX; /* no limit in ConnectIB */ | |
86695a65 | 741 | props->max_ah = INT_MAX; |
7c60bcbb MB |
742 | props->hca_core_clock = MLX5_CAP_GEN(mdev, device_frequency_khz); |
743 | props->timestamp_mask = 0x7FFFFFFFFFFFFFFFULL; | |
e126ba97 | 744 | |
8cdd312c | 745 | #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING |
938fe83c | 746 | if (MLX5_CAP_GEN(mdev, pg)) |
8cdd312c HE |
747 | props->device_cap_flags |= IB_DEVICE_ON_DEMAND_PAGING; |
748 | props->odp_caps = dev->odp_caps; | |
749 | #endif | |
750 | ||
051f2630 LR |
751 | if (MLX5_CAP_GEN(mdev, cd)) |
752 | props->device_cap_flags |= IB_DEVICE_CROSS_CHANNEL; | |
753 | ||
eff901d3 EC |
754 | if (!mlx5_core_is_pf(mdev)) |
755 | props->device_cap_flags |= IB_DEVICE_VIRTUAL_FUNCTION; | |
756 | ||
31f69a82 YH |
757 | if (mlx5_ib_port_link_layer(ibdev, 1) == |
758 | IB_LINK_LAYER_ETHERNET) { | |
759 | props->rss_caps.max_rwq_indirection_tables = | |
760 | 1 << MLX5_CAP_GEN(dev->mdev, log_max_rqt); | |
761 | props->rss_caps.max_rwq_indirection_table_size = | |
762 | 1 << MLX5_CAP_GEN(dev->mdev, log_max_rqt_size); | |
763 | props->rss_caps.supported_qpts = 1 << IB_QPT_RAW_PACKET; | |
764 | props->max_wq_type_rq = | |
765 | 1 << MLX5_CAP_GEN(dev->mdev, log_max_rq); | |
766 | } | |
767 | ||
7e43a2a5 BW |
768 | if (field_avail(typeof(resp), cqe_comp_caps, uhw->outlen)) { |
769 | resp.cqe_comp_caps.max_num = | |
770 | MLX5_CAP_GEN(dev->mdev, cqe_compression) ? | |
771 | MLX5_CAP_GEN(dev->mdev, cqe_compression_max_num) : 0; | |
772 | resp.cqe_comp_caps.supported_format = | |
773 | MLX5_IB_CQE_RES_FORMAT_HASH | | |
774 | MLX5_IB_CQE_RES_FORMAT_CSUM; | |
775 | resp.response_length += sizeof(resp.cqe_comp_caps); | |
776 | } | |
777 | ||
d949167d BW |
778 | if (field_avail(typeof(resp), packet_pacing_caps, uhw->outlen)) { |
779 | if (MLX5_CAP_QOS(mdev, packet_pacing) && | |
780 | MLX5_CAP_GEN(mdev, qos)) { | |
781 | resp.packet_pacing_caps.qp_rate_limit_max = | |
782 | MLX5_CAP_QOS(mdev, packet_pacing_max_rate); | |
783 | resp.packet_pacing_caps.qp_rate_limit_min = | |
784 | MLX5_CAP_QOS(mdev, packet_pacing_min_rate); | |
785 | resp.packet_pacing_caps.supported_qpts |= | |
786 | 1 << IB_QPT_RAW_PACKET; | |
787 | } | |
788 | resp.response_length += sizeof(resp.packet_pacing_caps); | |
789 | } | |
790 | ||
9f885201 LR |
791 | if (field_avail(typeof(resp), mlx5_ib_support_multi_pkt_send_wqes, |
792 | uhw->outlen)) { | |
793 | resp.mlx5_ib_support_multi_pkt_send_wqes = | |
794 | MLX5_CAP_ETH(mdev, multi_pkt_send_wqe); | |
795 | resp.response_length += | |
796 | sizeof(resp.mlx5_ib_support_multi_pkt_send_wqes); | |
797 | } | |
798 | ||
799 | if (field_avail(typeof(resp), reserved, uhw->outlen)) | |
800 | resp.response_length += sizeof(resp.reserved); | |
801 | ||
402ca536 BW |
802 | if (uhw->outlen) { |
803 | err = ib_copy_to_udata(uhw, &resp, resp.response_length); | |
804 | ||
805 | if (err) | |
806 | return err; | |
807 | } | |
808 | ||
1b5daf11 | 809 | return 0; |
e126ba97 EC |
810 | } |
811 | ||
1b5daf11 MD |
812 | enum mlx5_ib_width { |
813 | MLX5_IB_WIDTH_1X = 1 << 0, | |
814 | MLX5_IB_WIDTH_2X = 1 << 1, | |
815 | MLX5_IB_WIDTH_4X = 1 << 2, | |
816 | MLX5_IB_WIDTH_8X = 1 << 3, | |
817 | MLX5_IB_WIDTH_12X = 1 << 4 | |
818 | }; | |
819 | ||
820 | static int translate_active_width(struct ib_device *ibdev, u8 active_width, | |
821 | u8 *ib_width) | |
e126ba97 EC |
822 | { |
823 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
1b5daf11 MD |
824 | int err = 0; |
825 | ||
826 | if (active_width & MLX5_IB_WIDTH_1X) { | |
827 | *ib_width = IB_WIDTH_1X; | |
828 | } else if (active_width & MLX5_IB_WIDTH_2X) { | |
829 | mlx5_ib_dbg(dev, "active_width %d is not supported by IB spec\n", | |
830 | (int)active_width); | |
831 | err = -EINVAL; | |
832 | } else if (active_width & MLX5_IB_WIDTH_4X) { | |
833 | *ib_width = IB_WIDTH_4X; | |
834 | } else if (active_width & MLX5_IB_WIDTH_8X) { | |
835 | *ib_width = IB_WIDTH_8X; | |
836 | } else if (active_width & MLX5_IB_WIDTH_12X) { | |
837 | *ib_width = IB_WIDTH_12X; | |
838 | } else { | |
839 | mlx5_ib_dbg(dev, "Invalid active_width %d\n", | |
840 | (int)active_width); | |
841 | err = -EINVAL; | |
e126ba97 EC |
842 | } |
843 | ||
1b5daf11 MD |
844 | return err; |
845 | } | |
e126ba97 | 846 | |
1b5daf11 MD |
847 | static int mlx5_mtu_to_ib_mtu(int mtu) |
848 | { | |
849 | switch (mtu) { | |
850 | case 256: return 1; | |
851 | case 512: return 2; | |
852 | case 1024: return 3; | |
853 | case 2048: return 4; | |
854 | case 4096: return 5; | |
855 | default: | |
856 | pr_warn("invalid mtu\n"); | |
857 | return -1; | |
e126ba97 | 858 | } |
1b5daf11 | 859 | } |
e126ba97 | 860 | |
1b5daf11 MD |
861 | enum ib_max_vl_num { |
862 | __IB_MAX_VL_0 = 1, | |
863 | __IB_MAX_VL_0_1 = 2, | |
864 | __IB_MAX_VL_0_3 = 3, | |
865 | __IB_MAX_VL_0_7 = 4, | |
866 | __IB_MAX_VL_0_14 = 5, | |
867 | }; | |
e126ba97 | 868 | |
1b5daf11 MD |
869 | enum mlx5_vl_hw_cap { |
870 | MLX5_VL_HW_0 = 1, | |
871 | MLX5_VL_HW_0_1 = 2, | |
872 | MLX5_VL_HW_0_2 = 3, | |
873 | MLX5_VL_HW_0_3 = 4, | |
874 | MLX5_VL_HW_0_4 = 5, | |
875 | MLX5_VL_HW_0_5 = 6, | |
876 | MLX5_VL_HW_0_6 = 7, | |
877 | MLX5_VL_HW_0_7 = 8, | |
878 | MLX5_VL_HW_0_14 = 15 | |
879 | }; | |
e126ba97 | 880 | |
1b5daf11 MD |
881 | static int translate_max_vl_num(struct ib_device *ibdev, u8 vl_hw_cap, |
882 | u8 *max_vl_num) | |
883 | { | |
884 | switch (vl_hw_cap) { | |
885 | case MLX5_VL_HW_0: | |
886 | *max_vl_num = __IB_MAX_VL_0; | |
887 | break; | |
888 | case MLX5_VL_HW_0_1: | |
889 | *max_vl_num = __IB_MAX_VL_0_1; | |
890 | break; | |
891 | case MLX5_VL_HW_0_3: | |
892 | *max_vl_num = __IB_MAX_VL_0_3; | |
893 | break; | |
894 | case MLX5_VL_HW_0_7: | |
895 | *max_vl_num = __IB_MAX_VL_0_7; | |
896 | break; | |
897 | case MLX5_VL_HW_0_14: | |
898 | *max_vl_num = __IB_MAX_VL_0_14; | |
899 | break; | |
e126ba97 | 900 | |
1b5daf11 MD |
901 | default: |
902 | return -EINVAL; | |
e126ba97 | 903 | } |
e126ba97 | 904 | |
1b5daf11 | 905 | return 0; |
e126ba97 EC |
906 | } |
907 | ||
1b5daf11 MD |
908 | static int mlx5_query_hca_port(struct ib_device *ibdev, u8 port, |
909 | struct ib_port_attr *props) | |
e126ba97 | 910 | { |
1b5daf11 MD |
911 | struct mlx5_ib_dev *dev = to_mdev(ibdev); |
912 | struct mlx5_core_dev *mdev = dev->mdev; | |
913 | struct mlx5_hca_vport_context *rep; | |
046339ea SM |
914 | u16 max_mtu; |
915 | u16 oper_mtu; | |
1b5daf11 MD |
916 | int err; |
917 | u8 ib_link_width_oper; | |
918 | u8 vl_hw_cap; | |
e126ba97 | 919 | |
1b5daf11 MD |
920 | rep = kzalloc(sizeof(*rep), GFP_KERNEL); |
921 | if (!rep) { | |
922 | err = -ENOMEM; | |
e126ba97 | 923 | goto out; |
e126ba97 | 924 | } |
e126ba97 | 925 | |
c4550c63 | 926 | /* props being zeroed by the caller, avoid zeroing it here */ |
e126ba97 | 927 | |
1b5daf11 | 928 | err = mlx5_query_hca_vport_context(mdev, 0, port, 0, rep); |
e126ba97 EC |
929 | if (err) |
930 | goto out; | |
931 | ||
1b5daf11 MD |
932 | props->lid = rep->lid; |
933 | props->lmc = rep->lmc; | |
934 | props->sm_lid = rep->sm_lid; | |
935 | props->sm_sl = rep->sm_sl; | |
936 | props->state = rep->vport_state; | |
937 | props->phys_state = rep->port_physical_state; | |
938 | props->port_cap_flags = rep->cap_mask1; | |
939 | props->gid_tbl_len = mlx5_get_gid_table_len(MLX5_CAP_GEN(mdev, gid_table_size)); | |
940 | props->max_msg_sz = 1 << MLX5_CAP_GEN(mdev, log_max_msg); | |
941 | props->pkey_tbl_len = mlx5_to_sw_pkey_sz(MLX5_CAP_GEN(mdev, pkey_table_size)); | |
942 | props->bad_pkey_cntr = rep->pkey_violation_counter; | |
943 | props->qkey_viol_cntr = rep->qkey_violation_counter; | |
944 | props->subnet_timeout = rep->subnet_timeout; | |
945 | props->init_type_reply = rep->init_type_reply; | |
eff901d3 | 946 | props->grh_required = rep->grh_required; |
e126ba97 | 947 | |
1b5daf11 MD |
948 | err = mlx5_query_port_link_width_oper(mdev, &ib_link_width_oper, port); |
949 | if (err) | |
e126ba97 | 950 | goto out; |
e126ba97 | 951 | |
1b5daf11 MD |
952 | err = translate_active_width(ibdev, ib_link_width_oper, |
953 | &props->active_width); | |
954 | if (err) | |
955 | goto out; | |
d5beb7f2 | 956 | err = mlx5_query_port_ib_proto_oper(mdev, &props->active_speed, port); |
e126ba97 EC |
957 | if (err) |
958 | goto out; | |
959 | ||
facc9699 | 960 | mlx5_query_port_max_mtu(mdev, &max_mtu, port); |
e126ba97 | 961 | |
1b5daf11 | 962 | props->max_mtu = mlx5_mtu_to_ib_mtu(max_mtu); |
e126ba97 | 963 | |
facc9699 | 964 | mlx5_query_port_oper_mtu(mdev, &oper_mtu, port); |
e126ba97 | 965 | |
1b5daf11 | 966 | props->active_mtu = mlx5_mtu_to_ib_mtu(oper_mtu); |
e126ba97 | 967 | |
1b5daf11 MD |
968 | err = mlx5_query_port_vl_hw_cap(mdev, &vl_hw_cap, port); |
969 | if (err) | |
970 | goto out; | |
e126ba97 | 971 | |
1b5daf11 MD |
972 | err = translate_max_vl_num(ibdev, vl_hw_cap, |
973 | &props->max_vl_num); | |
e126ba97 | 974 | out: |
1b5daf11 | 975 | kfree(rep); |
e126ba97 EC |
976 | return err; |
977 | } | |
978 | ||
1b5daf11 MD |
979 | int mlx5_ib_query_port(struct ib_device *ibdev, u8 port, |
980 | struct ib_port_attr *props) | |
e126ba97 | 981 | { |
1b5daf11 MD |
982 | switch (mlx5_get_vport_access_method(ibdev)) { |
983 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
984 | return mlx5_query_mad_ifc_port(ibdev, port, props); | |
e126ba97 | 985 | |
1b5daf11 MD |
986 | case MLX5_VPORT_ACCESS_METHOD_HCA: |
987 | return mlx5_query_hca_port(ibdev, port, props); | |
e126ba97 | 988 | |
3f89a643 | 989 | case MLX5_VPORT_ACCESS_METHOD_NIC: |
50f22fd8 NO |
990 | mlx5_query_port_roce(ibdev, port, props); |
991 | return 0; | |
3f89a643 | 992 | |
1b5daf11 MD |
993 | default: |
994 | return -EINVAL; | |
995 | } | |
996 | } | |
e126ba97 | 997 | |
1b5daf11 MD |
998 | static int mlx5_ib_query_gid(struct ib_device *ibdev, u8 port, int index, |
999 | union ib_gid *gid) | |
1000 | { | |
1001 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
1002 | struct mlx5_core_dev *mdev = dev->mdev; | |
e126ba97 | 1003 | |
1b5daf11 MD |
1004 | switch (mlx5_get_vport_access_method(ibdev)) { |
1005 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
1006 | return mlx5_query_mad_ifc_gids(ibdev, port, index, gid); | |
e126ba97 | 1007 | |
1b5daf11 MD |
1008 | case MLX5_VPORT_ACCESS_METHOD_HCA: |
1009 | return mlx5_query_hca_vport_gid(mdev, 0, port, 0, index, gid); | |
1010 | ||
1011 | default: | |
1012 | return -EINVAL; | |
1013 | } | |
e126ba97 | 1014 | |
e126ba97 EC |
1015 | } |
1016 | ||
1b5daf11 MD |
1017 | static int mlx5_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, |
1018 | u16 *pkey) | |
1019 | { | |
1020 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
1021 | struct mlx5_core_dev *mdev = dev->mdev; | |
1022 | ||
1023 | switch (mlx5_get_vport_access_method(ibdev)) { | |
1024 | case MLX5_VPORT_ACCESS_METHOD_MAD: | |
1025 | return mlx5_query_mad_ifc_pkey(ibdev, port, index, pkey); | |
1026 | ||
1027 | case MLX5_VPORT_ACCESS_METHOD_HCA: | |
1028 | case MLX5_VPORT_ACCESS_METHOD_NIC: | |
1029 | return mlx5_query_hca_vport_pkey(mdev, 0, port, 0, index, | |
1030 | pkey); | |
1031 | default: | |
1032 | return -EINVAL; | |
1033 | } | |
1034 | } | |
e126ba97 EC |
1035 | |
1036 | static int mlx5_ib_modify_device(struct ib_device *ibdev, int mask, | |
1037 | struct ib_device_modify *props) | |
1038 | { | |
1039 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
1040 | struct mlx5_reg_node_desc in; | |
1041 | struct mlx5_reg_node_desc out; | |
1042 | int err; | |
1043 | ||
1044 | if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) | |
1045 | return -EOPNOTSUPP; | |
1046 | ||
1047 | if (!(mask & IB_DEVICE_MODIFY_NODE_DESC)) | |
1048 | return 0; | |
1049 | ||
1050 | /* | |
1051 | * If possible, pass node desc to FW, so it can generate | |
1052 | * a 144 trap. If cmd fails, just ignore. | |
1053 | */ | |
bd99fdea | 1054 | memcpy(&in, props->node_desc, IB_DEVICE_NODE_DESC_MAX); |
9603b61d | 1055 | err = mlx5_core_access_reg(dev->mdev, &in, sizeof(in), &out, |
e126ba97 EC |
1056 | sizeof(out), MLX5_REG_NODE_DESC, 0, 1); |
1057 | if (err) | |
1058 | return err; | |
1059 | ||
bd99fdea | 1060 | memcpy(ibdev->node_desc, props->node_desc, IB_DEVICE_NODE_DESC_MAX); |
e126ba97 EC |
1061 | |
1062 | return err; | |
1063 | } | |
1064 | ||
cdbe33d0 EC |
1065 | static int set_port_caps_atomic(struct mlx5_ib_dev *dev, u8 port_num, u32 mask, |
1066 | u32 value) | |
1067 | { | |
1068 | struct mlx5_hca_vport_context ctx = {}; | |
1069 | int err; | |
1070 | ||
1071 | err = mlx5_query_hca_vport_context(dev->mdev, 0, | |
1072 | port_num, 0, &ctx); | |
1073 | if (err) | |
1074 | return err; | |
1075 | ||
1076 | if (~ctx.cap_mask1_perm & mask) { | |
1077 | mlx5_ib_warn(dev, "trying to change bitmask 0x%X but change supported 0x%X\n", | |
1078 | mask, ctx.cap_mask1_perm); | |
1079 | return -EINVAL; | |
1080 | } | |
1081 | ||
1082 | ctx.cap_mask1 = value; | |
1083 | ctx.cap_mask1_perm = mask; | |
1084 | err = mlx5_core_modify_hca_vport_context(dev->mdev, 0, | |
1085 | port_num, 0, &ctx); | |
1086 | ||
1087 | return err; | |
1088 | } | |
1089 | ||
e126ba97 EC |
1090 | static int mlx5_ib_modify_port(struct ib_device *ibdev, u8 port, int mask, |
1091 | struct ib_port_modify *props) | |
1092 | { | |
1093 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
1094 | struct ib_port_attr attr; | |
1095 | u32 tmp; | |
1096 | int err; | |
cdbe33d0 EC |
1097 | u32 change_mask; |
1098 | u32 value; | |
1099 | bool is_ib = (mlx5_ib_port_link_layer(ibdev, port) == | |
1100 | IB_LINK_LAYER_INFINIBAND); | |
1101 | ||
1102 | if (MLX5_CAP_GEN(dev->mdev, ib_virt) && is_ib) { | |
1103 | change_mask = props->clr_port_cap_mask | props->set_port_cap_mask; | |
1104 | value = ~props->clr_port_cap_mask | props->set_port_cap_mask; | |
1105 | return set_port_caps_atomic(dev, port, change_mask, value); | |
1106 | } | |
e126ba97 EC |
1107 | |
1108 | mutex_lock(&dev->cap_mask_mutex); | |
1109 | ||
c4550c63 | 1110 | err = ib_query_port(ibdev, port, &attr); |
e126ba97 EC |
1111 | if (err) |
1112 | goto out; | |
1113 | ||
1114 | tmp = (attr.port_cap_flags | props->set_port_cap_mask) & | |
1115 | ~props->clr_port_cap_mask; | |
1116 | ||
9603b61d | 1117 | err = mlx5_set_port_caps(dev->mdev, port, tmp); |
e126ba97 EC |
1118 | |
1119 | out: | |
1120 | mutex_unlock(&dev->cap_mask_mutex); | |
1121 | return err; | |
1122 | } | |
1123 | ||
30aa60b3 EC |
1124 | static void print_lib_caps(struct mlx5_ib_dev *dev, u64 caps) |
1125 | { | |
1126 | mlx5_ib_dbg(dev, "MLX5_LIB_CAP_4K_UAR = %s\n", | |
1127 | caps & MLX5_LIB_CAP_4K_UAR ? "y" : "n"); | |
1128 | } | |
1129 | ||
b037c29a EC |
1130 | static int calc_total_bfregs(struct mlx5_ib_dev *dev, bool lib_uar_4k, |
1131 | struct mlx5_ib_alloc_ucontext_req_v2 *req, | |
1132 | u32 *num_sys_pages) | |
1133 | { | |
1134 | int uars_per_sys_page; | |
1135 | int bfregs_per_sys_page; | |
1136 | int ref_bfregs = req->total_num_bfregs; | |
1137 | ||
1138 | if (req->total_num_bfregs == 0) | |
1139 | return -EINVAL; | |
1140 | ||
1141 | BUILD_BUG_ON(MLX5_MAX_BFREGS % MLX5_NON_FP_BFREGS_IN_PAGE); | |
1142 | BUILD_BUG_ON(MLX5_MAX_BFREGS < MLX5_NON_FP_BFREGS_IN_PAGE); | |
1143 | ||
1144 | if (req->total_num_bfregs > MLX5_MAX_BFREGS) | |
1145 | return -ENOMEM; | |
1146 | ||
1147 | uars_per_sys_page = get_uars_per_sys_page(dev, lib_uar_4k); | |
1148 | bfregs_per_sys_page = uars_per_sys_page * MLX5_NON_FP_BFREGS_PER_UAR; | |
1149 | req->total_num_bfregs = ALIGN(req->total_num_bfregs, bfregs_per_sys_page); | |
1150 | *num_sys_pages = req->total_num_bfregs / bfregs_per_sys_page; | |
1151 | ||
1152 | if (req->num_low_latency_bfregs > req->total_num_bfregs - 1) | |
1153 | return -EINVAL; | |
1154 | ||
1155 | mlx5_ib_dbg(dev, "uar_4k: fw support %s, lib support %s, user requested %d bfregs, alloated %d, using %d sys pages\n", | |
1156 | MLX5_CAP_GEN(dev->mdev, uar_4k) ? "yes" : "no", | |
1157 | lib_uar_4k ? "yes" : "no", ref_bfregs, | |
1158 | req->total_num_bfregs, *num_sys_pages); | |
1159 | ||
1160 | return 0; | |
1161 | } | |
1162 | ||
1163 | static int allocate_uars(struct mlx5_ib_dev *dev, struct mlx5_ib_ucontext *context) | |
1164 | { | |
1165 | struct mlx5_bfreg_info *bfregi; | |
1166 | int err; | |
1167 | int i; | |
1168 | ||
1169 | bfregi = &context->bfregi; | |
1170 | for (i = 0; i < bfregi->num_sys_pages; i++) { | |
1171 | err = mlx5_cmd_alloc_uar(dev->mdev, &bfregi->sys_pages[i]); | |
1172 | if (err) | |
1173 | goto error; | |
1174 | ||
1175 | mlx5_ib_dbg(dev, "allocated uar %d\n", bfregi->sys_pages[i]); | |
1176 | } | |
1177 | return 0; | |
1178 | ||
1179 | error: | |
1180 | for (--i; i >= 0; i--) | |
1181 | if (mlx5_cmd_free_uar(dev->mdev, bfregi->sys_pages[i])) | |
1182 | mlx5_ib_warn(dev, "failed to free uar %d\n", i); | |
1183 | ||
1184 | return err; | |
1185 | } | |
1186 | ||
1187 | static int deallocate_uars(struct mlx5_ib_dev *dev, struct mlx5_ib_ucontext *context) | |
1188 | { | |
1189 | struct mlx5_bfreg_info *bfregi; | |
1190 | int err; | |
1191 | int i; | |
1192 | ||
1193 | bfregi = &context->bfregi; | |
1194 | for (i = 0; i < bfregi->num_sys_pages; i++) { | |
1195 | err = mlx5_cmd_free_uar(dev->mdev, bfregi->sys_pages[i]); | |
1196 | if (err) { | |
1197 | mlx5_ib_warn(dev, "failed to free uar %d\n", i); | |
1198 | return err; | |
1199 | } | |
1200 | } | |
1201 | return 0; | |
1202 | } | |
1203 | ||
e126ba97 EC |
1204 | static struct ib_ucontext *mlx5_ib_alloc_ucontext(struct ib_device *ibdev, |
1205 | struct ib_udata *udata) | |
1206 | { | |
1207 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
b368d7cb MB |
1208 | struct mlx5_ib_alloc_ucontext_req_v2 req = {}; |
1209 | struct mlx5_ib_alloc_ucontext_resp resp = {}; | |
e126ba97 | 1210 | struct mlx5_ib_ucontext *context; |
2f5ff264 | 1211 | struct mlx5_bfreg_info *bfregi; |
78c0f98c | 1212 | int ver; |
e126ba97 | 1213 | int err; |
f241e749 | 1214 | size_t reqlen; |
a168a41c MD |
1215 | size_t min_req_v2 = offsetof(struct mlx5_ib_alloc_ucontext_req_v2, |
1216 | max_cqe_version); | |
b037c29a | 1217 | bool lib_uar_4k; |
e126ba97 EC |
1218 | |
1219 | if (!dev->ib_active) | |
1220 | return ERR_PTR(-EAGAIN); | |
1221 | ||
dfbee859 HA |
1222 | if (udata->inlen < sizeof(struct ib_uverbs_cmd_hdr)) |
1223 | return ERR_PTR(-EINVAL); | |
1224 | ||
78c0f98c EC |
1225 | reqlen = udata->inlen - sizeof(struct ib_uverbs_cmd_hdr); |
1226 | if (reqlen == sizeof(struct mlx5_ib_alloc_ucontext_req)) | |
1227 | ver = 0; | |
a168a41c | 1228 | else if (reqlen >= min_req_v2) |
78c0f98c EC |
1229 | ver = 2; |
1230 | else | |
1231 | return ERR_PTR(-EINVAL); | |
1232 | ||
b368d7cb | 1233 | err = ib_copy_from_udata(&req, udata, min(reqlen, sizeof(req))); |
e126ba97 EC |
1234 | if (err) |
1235 | return ERR_PTR(err); | |
1236 | ||
b368d7cb | 1237 | if (req.flags) |
78c0f98c EC |
1238 | return ERR_PTR(-EINVAL); |
1239 | ||
f72300c5 | 1240 | if (req.comp_mask || req.reserved0 || req.reserved1 || req.reserved2) |
b368d7cb MB |
1241 | return ERR_PTR(-EOPNOTSUPP); |
1242 | ||
2f5ff264 EC |
1243 | req.total_num_bfregs = ALIGN(req.total_num_bfregs, |
1244 | MLX5_NON_FP_BFREGS_PER_UAR); | |
1245 | if (req.num_low_latency_bfregs > req.total_num_bfregs - 1) | |
e126ba97 EC |
1246 | return ERR_PTR(-EINVAL); |
1247 | ||
938fe83c | 1248 | resp.qp_tab_size = 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp); |
2cc6ad5f NO |
1249 | if (mlx5_core_is_pf(dev->mdev) && MLX5_CAP_GEN(dev->mdev, bf)) |
1250 | resp.bf_reg_size = 1 << MLX5_CAP_GEN(dev->mdev, log_bf_reg_size); | |
b47bd6ea | 1251 | resp.cache_line_size = cache_line_size(); |
938fe83c SM |
1252 | resp.max_sq_desc_sz = MLX5_CAP_GEN(dev->mdev, max_wqe_sz_sq); |
1253 | resp.max_rq_desc_sz = MLX5_CAP_GEN(dev->mdev, max_wqe_sz_rq); | |
1254 | resp.max_send_wqebb = 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz); | |
1255 | resp.max_recv_wr = 1 << MLX5_CAP_GEN(dev->mdev, log_max_qp_sz); | |
1256 | resp.max_srq_recv_wr = 1 << MLX5_CAP_GEN(dev->mdev, log_max_srq_sz); | |
f72300c5 HA |
1257 | resp.cqe_version = min_t(__u8, |
1258 | (__u8)MLX5_CAP_GEN(dev->mdev, cqe_version), | |
1259 | req.max_cqe_version); | |
30aa60b3 EC |
1260 | resp.log_uar_size = MLX5_CAP_GEN(dev->mdev, uar_4k) ? |
1261 | MLX5_ADAPTER_PAGE_SHIFT : PAGE_SHIFT; | |
1262 | resp.num_uars_per_page = MLX5_CAP_GEN(dev->mdev, uar_4k) ? | |
1263 | MLX5_CAP_GEN(dev->mdev, num_of_uars_per_page) : 1; | |
b368d7cb MB |
1264 | resp.response_length = min(offsetof(typeof(resp), response_length) + |
1265 | sizeof(resp.response_length), udata->outlen); | |
e126ba97 EC |
1266 | |
1267 | context = kzalloc(sizeof(*context), GFP_KERNEL); | |
1268 | if (!context) | |
1269 | return ERR_PTR(-ENOMEM); | |
1270 | ||
30aa60b3 | 1271 | lib_uar_4k = req.lib_caps & MLX5_LIB_CAP_4K_UAR; |
2f5ff264 | 1272 | bfregi = &context->bfregi; |
b037c29a EC |
1273 | |
1274 | /* updates req->total_num_bfregs */ | |
1275 | err = calc_total_bfregs(dev, lib_uar_4k, &req, &bfregi->num_sys_pages); | |
1276 | if (err) | |
e126ba97 | 1277 | goto out_ctx; |
e126ba97 | 1278 | |
b037c29a EC |
1279 | mutex_init(&bfregi->lock); |
1280 | bfregi->lib_uar_4k = lib_uar_4k; | |
1281 | bfregi->count = kcalloc(req.total_num_bfregs, sizeof(*bfregi->count), | |
e126ba97 | 1282 | GFP_KERNEL); |
b037c29a | 1283 | if (!bfregi->count) { |
e126ba97 | 1284 | err = -ENOMEM; |
b037c29a | 1285 | goto out_ctx; |
e126ba97 EC |
1286 | } |
1287 | ||
b037c29a EC |
1288 | bfregi->sys_pages = kcalloc(bfregi->num_sys_pages, |
1289 | sizeof(*bfregi->sys_pages), | |
1290 | GFP_KERNEL); | |
1291 | if (!bfregi->sys_pages) { | |
e126ba97 | 1292 | err = -ENOMEM; |
b037c29a | 1293 | goto out_count; |
e126ba97 EC |
1294 | } |
1295 | ||
b037c29a EC |
1296 | err = allocate_uars(dev, context); |
1297 | if (err) | |
1298 | goto out_sys_pages; | |
e126ba97 | 1299 | |
b4cfe447 HE |
1300 | #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING |
1301 | context->ibucontext.invalidate_range = &mlx5_ib_invalidate_range; | |
1302 | #endif | |
1303 | ||
7d0cc6ed AK |
1304 | context->upd_xlt_page = __get_free_page(GFP_KERNEL); |
1305 | if (!context->upd_xlt_page) { | |
1306 | err = -ENOMEM; | |
1307 | goto out_uars; | |
1308 | } | |
1309 | mutex_init(&context->upd_xlt_page_mutex); | |
1310 | ||
146d2f1a | 1311 | if (MLX5_CAP_GEN(dev->mdev, log_max_transport_domain)) { |
1312 | err = mlx5_core_alloc_transport_domain(dev->mdev, | |
1313 | &context->tdn); | |
1314 | if (err) | |
7d0cc6ed | 1315 | goto out_page; |
146d2f1a | 1316 | } |
1317 | ||
7c2344c3 | 1318 | INIT_LIST_HEAD(&context->vma_private_list); |
e126ba97 EC |
1319 | INIT_LIST_HEAD(&context->db_page_list); |
1320 | mutex_init(&context->db_page_mutex); | |
1321 | ||
2f5ff264 | 1322 | resp.tot_bfregs = req.total_num_bfregs; |
938fe83c | 1323 | resp.num_ports = MLX5_CAP_GEN(dev->mdev, num_ports); |
b368d7cb | 1324 | |
f72300c5 HA |
1325 | if (field_avail(typeof(resp), cqe_version, udata->outlen)) |
1326 | resp.response_length += sizeof(resp.cqe_version); | |
b368d7cb | 1327 | |
402ca536 | 1328 | if (field_avail(typeof(resp), cmds_supp_uhw, udata->outlen)) { |
6ad279c5 MS |
1329 | resp.cmds_supp_uhw |= MLX5_USER_CMDS_SUPP_UHW_QUERY_DEVICE | |
1330 | MLX5_USER_CMDS_SUPP_UHW_CREATE_AH; | |
402ca536 BW |
1331 | resp.response_length += sizeof(resp.cmds_supp_uhw); |
1332 | } | |
1333 | ||
78984898 OG |
1334 | if (field_avail(typeof(resp), eth_min_inline, udata->outlen)) { |
1335 | if (mlx5_ib_port_link_layer(ibdev, 1) == IB_LINK_LAYER_ETHERNET) { | |
1336 | mlx5_query_min_inline(dev->mdev, &resp.eth_min_inline); | |
1337 | resp.eth_min_inline++; | |
1338 | } | |
1339 | resp.response_length += sizeof(resp.eth_min_inline); | |
1340 | } | |
1341 | ||
bc5c6eed NO |
1342 | /* |
1343 | * We don't want to expose information from the PCI bar that is located | |
1344 | * after 4096 bytes, so if the arch only supports larger pages, let's | |
1345 | * pretend we don't support reading the HCA's core clock. This is also | |
1346 | * forced by mmap function. | |
1347 | */ | |
de8d6e02 EC |
1348 | if (field_avail(typeof(resp), hca_core_clock_offset, udata->outlen)) { |
1349 | if (PAGE_SIZE <= 4096) { | |
1350 | resp.comp_mask |= | |
1351 | MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_CORE_CLOCK_OFFSET; | |
1352 | resp.hca_core_clock_offset = | |
1353 | offsetof(struct mlx5_init_seg, internal_timer_h) % PAGE_SIZE; | |
1354 | } | |
f72300c5 | 1355 | resp.response_length += sizeof(resp.hca_core_clock_offset) + |
402ca536 | 1356 | sizeof(resp.reserved2); |
b368d7cb MB |
1357 | } |
1358 | ||
30aa60b3 EC |
1359 | if (field_avail(typeof(resp), log_uar_size, udata->outlen)) |
1360 | resp.response_length += sizeof(resp.log_uar_size); | |
1361 | ||
1362 | if (field_avail(typeof(resp), num_uars_per_page, udata->outlen)) | |
1363 | resp.response_length += sizeof(resp.num_uars_per_page); | |
1364 | ||
b368d7cb | 1365 | err = ib_copy_to_udata(udata, &resp, resp.response_length); |
e126ba97 | 1366 | if (err) |
146d2f1a | 1367 | goto out_td; |
e126ba97 | 1368 | |
2f5ff264 EC |
1369 | bfregi->ver = ver; |
1370 | bfregi->num_low_latency_bfregs = req.num_low_latency_bfregs; | |
f72300c5 | 1371 | context->cqe_version = resp.cqe_version; |
30aa60b3 EC |
1372 | context->lib_caps = req.lib_caps; |
1373 | print_lib_caps(dev, context->lib_caps); | |
f72300c5 | 1374 | |
e126ba97 EC |
1375 | return &context->ibucontext; |
1376 | ||
146d2f1a | 1377 | out_td: |
1378 | if (MLX5_CAP_GEN(dev->mdev, log_max_transport_domain)) | |
1379 | mlx5_core_dealloc_transport_domain(dev->mdev, context->tdn); | |
1380 | ||
7d0cc6ed AK |
1381 | out_page: |
1382 | free_page(context->upd_xlt_page); | |
1383 | ||
e126ba97 | 1384 | out_uars: |
b037c29a | 1385 | deallocate_uars(dev, context); |
e126ba97 | 1386 | |
b037c29a EC |
1387 | out_sys_pages: |
1388 | kfree(bfregi->sys_pages); | |
e126ba97 | 1389 | |
b037c29a EC |
1390 | out_count: |
1391 | kfree(bfregi->count); | |
e126ba97 EC |
1392 | |
1393 | out_ctx: | |
1394 | kfree(context); | |
b037c29a | 1395 | |
e126ba97 EC |
1396 | return ERR_PTR(err); |
1397 | } | |
1398 | ||
1399 | static int mlx5_ib_dealloc_ucontext(struct ib_ucontext *ibcontext) | |
1400 | { | |
1401 | struct mlx5_ib_ucontext *context = to_mucontext(ibcontext); | |
1402 | struct mlx5_ib_dev *dev = to_mdev(ibcontext->device); | |
b037c29a | 1403 | struct mlx5_bfreg_info *bfregi; |
e126ba97 | 1404 | |
b037c29a | 1405 | bfregi = &context->bfregi; |
146d2f1a | 1406 | if (MLX5_CAP_GEN(dev->mdev, log_max_transport_domain)) |
1407 | mlx5_core_dealloc_transport_domain(dev->mdev, context->tdn); | |
1408 | ||
7d0cc6ed | 1409 | free_page(context->upd_xlt_page); |
b037c29a EC |
1410 | deallocate_uars(dev, context); |
1411 | kfree(bfregi->sys_pages); | |
2f5ff264 | 1412 | kfree(bfregi->count); |
e126ba97 EC |
1413 | kfree(context); |
1414 | ||
1415 | return 0; | |
1416 | } | |
1417 | ||
b037c29a EC |
1418 | static phys_addr_t uar_index2pfn(struct mlx5_ib_dev *dev, |
1419 | struct mlx5_bfreg_info *bfregi, | |
1420 | int idx) | |
e126ba97 | 1421 | { |
b037c29a EC |
1422 | int fw_uars_per_page; |
1423 | ||
1424 | fw_uars_per_page = MLX5_CAP_GEN(dev->mdev, uar_4k) ? MLX5_UARS_IN_PAGE : 1; | |
1425 | ||
1426 | return (pci_resource_start(dev->mdev->pdev, 0) >> PAGE_SHIFT) + | |
1427 | bfregi->sys_pages[idx] / fw_uars_per_page; | |
e126ba97 EC |
1428 | } |
1429 | ||
1430 | static int get_command(unsigned long offset) | |
1431 | { | |
1432 | return (offset >> MLX5_IB_MMAP_CMD_SHIFT) & MLX5_IB_MMAP_CMD_MASK; | |
1433 | } | |
1434 | ||
1435 | static int get_arg(unsigned long offset) | |
1436 | { | |
1437 | return offset & ((1 << MLX5_IB_MMAP_CMD_SHIFT) - 1); | |
1438 | } | |
1439 | ||
1440 | static int get_index(unsigned long offset) | |
1441 | { | |
1442 | return get_arg(offset); | |
1443 | } | |
1444 | ||
7c2344c3 MG |
1445 | static void mlx5_ib_vma_open(struct vm_area_struct *area) |
1446 | { | |
1447 | /* vma_open is called when a new VMA is created on top of our VMA. This | |
1448 | * is done through either mremap flow or split_vma (usually due to | |
1449 | * mlock, madvise, munmap, etc.) We do not support a clone of the VMA, | |
1450 | * as this VMA is strongly hardware related. Therefore we set the | |
1451 | * vm_ops of the newly created/cloned VMA to NULL, to prevent it from | |
1452 | * calling us again and trying to do incorrect actions. We assume that | |
1453 | * the original VMA size is exactly a single page, and therefore all | |
1454 | * "splitting" operation will not happen to it. | |
1455 | */ | |
1456 | area->vm_ops = NULL; | |
1457 | } | |
1458 | ||
1459 | static void mlx5_ib_vma_close(struct vm_area_struct *area) | |
1460 | { | |
1461 | struct mlx5_ib_vma_private_data *mlx5_ib_vma_priv_data; | |
1462 | ||
1463 | /* It's guaranteed that all VMAs opened on a FD are closed before the | |
1464 | * file itself is closed, therefore no sync is needed with the regular | |
1465 | * closing flow. (e.g. mlx5 ib_dealloc_ucontext) | |
1466 | * However need a sync with accessing the vma as part of | |
1467 | * mlx5_ib_disassociate_ucontext. | |
1468 | * The close operation is usually called under mm->mmap_sem except when | |
1469 | * process is exiting. | |
1470 | * The exiting case is handled explicitly as part of | |
1471 | * mlx5_ib_disassociate_ucontext. | |
1472 | */ | |
1473 | mlx5_ib_vma_priv_data = (struct mlx5_ib_vma_private_data *)area->vm_private_data; | |
1474 | ||
1475 | /* setting the vma context pointer to null in the mlx5_ib driver's | |
1476 | * private data, to protect a race condition in | |
1477 | * mlx5_ib_disassociate_ucontext(). | |
1478 | */ | |
1479 | mlx5_ib_vma_priv_data->vma = NULL; | |
1480 | list_del(&mlx5_ib_vma_priv_data->list); | |
1481 | kfree(mlx5_ib_vma_priv_data); | |
1482 | } | |
1483 | ||
1484 | static const struct vm_operations_struct mlx5_ib_vm_ops = { | |
1485 | .open = mlx5_ib_vma_open, | |
1486 | .close = mlx5_ib_vma_close | |
1487 | }; | |
1488 | ||
1489 | static int mlx5_ib_set_vma_data(struct vm_area_struct *vma, | |
1490 | struct mlx5_ib_ucontext *ctx) | |
1491 | { | |
1492 | struct mlx5_ib_vma_private_data *vma_prv; | |
1493 | struct list_head *vma_head = &ctx->vma_private_list; | |
1494 | ||
1495 | vma_prv = kzalloc(sizeof(*vma_prv), GFP_KERNEL); | |
1496 | if (!vma_prv) | |
1497 | return -ENOMEM; | |
1498 | ||
1499 | vma_prv->vma = vma; | |
1500 | vma->vm_private_data = vma_prv; | |
1501 | vma->vm_ops = &mlx5_ib_vm_ops; | |
1502 | ||
1503 | list_add(&vma_prv->list, vma_head); | |
1504 | ||
1505 | return 0; | |
1506 | } | |
1507 | ||
1508 | static void mlx5_ib_disassociate_ucontext(struct ib_ucontext *ibcontext) | |
1509 | { | |
1510 | int ret; | |
1511 | struct vm_area_struct *vma; | |
1512 | struct mlx5_ib_vma_private_data *vma_private, *n; | |
1513 | struct mlx5_ib_ucontext *context = to_mucontext(ibcontext); | |
1514 | struct task_struct *owning_process = NULL; | |
1515 | struct mm_struct *owning_mm = NULL; | |
1516 | ||
1517 | owning_process = get_pid_task(ibcontext->tgid, PIDTYPE_PID); | |
1518 | if (!owning_process) | |
1519 | return; | |
1520 | ||
1521 | owning_mm = get_task_mm(owning_process); | |
1522 | if (!owning_mm) { | |
1523 | pr_info("no mm, disassociate ucontext is pending task termination\n"); | |
1524 | while (1) { | |
1525 | put_task_struct(owning_process); | |
1526 | usleep_range(1000, 2000); | |
1527 | owning_process = get_pid_task(ibcontext->tgid, | |
1528 | PIDTYPE_PID); | |
1529 | if (!owning_process || | |
1530 | owning_process->state == TASK_DEAD) { | |
1531 | pr_info("disassociate ucontext done, task was terminated\n"); | |
1532 | /* in case task was dead need to release the | |
1533 | * task struct. | |
1534 | */ | |
1535 | if (owning_process) | |
1536 | put_task_struct(owning_process); | |
1537 | return; | |
1538 | } | |
1539 | } | |
1540 | } | |
1541 | ||
1542 | /* need to protect from a race on closing the vma as part of | |
1543 | * mlx5_ib_vma_close. | |
1544 | */ | |
ecc7d83b | 1545 | down_write(&owning_mm->mmap_sem); |
7c2344c3 MG |
1546 | list_for_each_entry_safe(vma_private, n, &context->vma_private_list, |
1547 | list) { | |
1548 | vma = vma_private->vma; | |
1549 | ret = zap_vma_ptes(vma, vma->vm_start, | |
1550 | PAGE_SIZE); | |
1551 | WARN_ONCE(ret, "%s: zap_vma_ptes failed", __func__); | |
1552 | /* context going to be destroyed, should | |
1553 | * not access ops any more. | |
1554 | */ | |
13776612 | 1555 | vma->vm_flags &= ~(VM_SHARED | VM_MAYSHARE); |
7c2344c3 MG |
1556 | vma->vm_ops = NULL; |
1557 | list_del(&vma_private->list); | |
1558 | kfree(vma_private); | |
1559 | } | |
ecc7d83b | 1560 | up_write(&owning_mm->mmap_sem); |
7c2344c3 MG |
1561 | mmput(owning_mm); |
1562 | put_task_struct(owning_process); | |
1563 | } | |
1564 | ||
37aa5c36 GL |
1565 | static inline char *mmap_cmd2str(enum mlx5_ib_mmap_cmd cmd) |
1566 | { | |
1567 | switch (cmd) { | |
1568 | case MLX5_IB_MMAP_WC_PAGE: | |
1569 | return "WC"; | |
1570 | case MLX5_IB_MMAP_REGULAR_PAGE: | |
1571 | return "best effort WC"; | |
1572 | case MLX5_IB_MMAP_NC_PAGE: | |
1573 | return "NC"; | |
1574 | default: | |
1575 | return NULL; | |
1576 | } | |
1577 | } | |
1578 | ||
1579 | static int uar_mmap(struct mlx5_ib_dev *dev, enum mlx5_ib_mmap_cmd cmd, | |
7c2344c3 MG |
1580 | struct vm_area_struct *vma, |
1581 | struct mlx5_ib_ucontext *context) | |
37aa5c36 | 1582 | { |
2f5ff264 | 1583 | struct mlx5_bfreg_info *bfregi = &context->bfregi; |
37aa5c36 GL |
1584 | int err; |
1585 | unsigned long idx; | |
1586 | phys_addr_t pfn, pa; | |
1587 | pgprot_t prot; | |
b037c29a EC |
1588 | int uars_per_page; |
1589 | ||
1590 | if (vma->vm_end - vma->vm_start != PAGE_SIZE) | |
1591 | return -EINVAL; | |
1592 | ||
1593 | uars_per_page = get_uars_per_sys_page(dev, bfregi->lib_uar_4k); | |
1594 | idx = get_index(vma->vm_pgoff); | |
1595 | if (idx % uars_per_page || | |
1596 | idx * uars_per_page >= bfregi->num_sys_pages) { | |
1597 | mlx5_ib_warn(dev, "invalid uar index %lu\n", idx); | |
1598 | return -EINVAL; | |
1599 | } | |
37aa5c36 GL |
1600 | |
1601 | switch (cmd) { | |
1602 | case MLX5_IB_MMAP_WC_PAGE: | |
1603 | /* Some architectures don't support WC memory */ | |
1604 | #if defined(CONFIG_X86) | |
1605 | if (!pat_enabled()) | |
1606 | return -EPERM; | |
1607 | #elif !(defined(CONFIG_PPC) || (defined(CONFIG_ARM) && defined(CONFIG_MMU))) | |
1608 | return -EPERM; | |
1609 | #endif | |
1610 | /* fall through */ | |
1611 | case MLX5_IB_MMAP_REGULAR_PAGE: | |
1612 | /* For MLX5_IB_MMAP_REGULAR_PAGE do the best effort to get WC */ | |
1613 | prot = pgprot_writecombine(vma->vm_page_prot); | |
1614 | break; | |
1615 | case MLX5_IB_MMAP_NC_PAGE: | |
1616 | prot = pgprot_noncached(vma->vm_page_prot); | |
1617 | break; | |
1618 | default: | |
1619 | return -EINVAL; | |
1620 | } | |
1621 | ||
b037c29a | 1622 | pfn = uar_index2pfn(dev, bfregi, idx); |
37aa5c36 GL |
1623 | mlx5_ib_dbg(dev, "uar idx 0x%lx, pfn %pa\n", idx, &pfn); |
1624 | ||
1625 | vma->vm_page_prot = prot; | |
1626 | err = io_remap_pfn_range(vma, vma->vm_start, pfn, | |
1627 | PAGE_SIZE, vma->vm_page_prot); | |
1628 | if (err) { | |
1629 | mlx5_ib_err(dev, "io_remap_pfn_range failed with error=%d, vm_start=0x%lx, pfn=%pa, mmap_cmd=%s\n", | |
1630 | err, vma->vm_start, &pfn, mmap_cmd2str(cmd)); | |
1631 | return -EAGAIN; | |
1632 | } | |
1633 | ||
1634 | pa = pfn << PAGE_SHIFT; | |
1635 | mlx5_ib_dbg(dev, "mapped %s at 0x%lx, PA %pa\n", mmap_cmd2str(cmd), | |
1636 | vma->vm_start, &pa); | |
1637 | ||
7c2344c3 | 1638 | return mlx5_ib_set_vma_data(vma, context); |
37aa5c36 GL |
1639 | } |
1640 | ||
e126ba97 EC |
1641 | static int mlx5_ib_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vma) |
1642 | { | |
1643 | struct mlx5_ib_ucontext *context = to_mucontext(ibcontext); | |
1644 | struct mlx5_ib_dev *dev = to_mdev(ibcontext->device); | |
e126ba97 | 1645 | unsigned long command; |
e126ba97 EC |
1646 | phys_addr_t pfn; |
1647 | ||
1648 | command = get_command(vma->vm_pgoff); | |
1649 | switch (command) { | |
37aa5c36 GL |
1650 | case MLX5_IB_MMAP_WC_PAGE: |
1651 | case MLX5_IB_MMAP_NC_PAGE: | |
e126ba97 | 1652 | case MLX5_IB_MMAP_REGULAR_PAGE: |
7c2344c3 | 1653 | return uar_mmap(dev, command, vma, context); |
e126ba97 EC |
1654 | |
1655 | case MLX5_IB_MMAP_GET_CONTIGUOUS_PAGES: | |
1656 | return -ENOSYS; | |
1657 | ||
d69e3bcf | 1658 | case MLX5_IB_MMAP_CORE_CLOCK: |
d69e3bcf MB |
1659 | if (vma->vm_end - vma->vm_start != PAGE_SIZE) |
1660 | return -EINVAL; | |
1661 | ||
6cbac1e4 | 1662 | if (vma->vm_flags & VM_WRITE) |
d69e3bcf MB |
1663 | return -EPERM; |
1664 | ||
1665 | /* Don't expose to user-space information it shouldn't have */ | |
1666 | if (PAGE_SIZE > 4096) | |
1667 | return -EOPNOTSUPP; | |
1668 | ||
1669 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | |
1670 | pfn = (dev->mdev->iseg_base + | |
1671 | offsetof(struct mlx5_init_seg, internal_timer_h)) >> | |
1672 | PAGE_SHIFT; | |
1673 | if (io_remap_pfn_range(vma, vma->vm_start, pfn, | |
1674 | PAGE_SIZE, vma->vm_page_prot)) | |
1675 | return -EAGAIN; | |
1676 | ||
1677 | mlx5_ib_dbg(dev, "mapped internal timer at 0x%lx, PA 0x%llx\n", | |
1678 | vma->vm_start, | |
1679 | (unsigned long long)pfn << PAGE_SHIFT); | |
1680 | break; | |
d69e3bcf | 1681 | |
e126ba97 EC |
1682 | default: |
1683 | return -EINVAL; | |
1684 | } | |
1685 | ||
1686 | return 0; | |
1687 | } | |
1688 | ||
e126ba97 EC |
1689 | static struct ib_pd *mlx5_ib_alloc_pd(struct ib_device *ibdev, |
1690 | struct ib_ucontext *context, | |
1691 | struct ib_udata *udata) | |
1692 | { | |
1693 | struct mlx5_ib_alloc_pd_resp resp; | |
1694 | struct mlx5_ib_pd *pd; | |
1695 | int err; | |
1696 | ||
1697 | pd = kmalloc(sizeof(*pd), GFP_KERNEL); | |
1698 | if (!pd) | |
1699 | return ERR_PTR(-ENOMEM); | |
1700 | ||
9603b61d | 1701 | err = mlx5_core_alloc_pd(to_mdev(ibdev)->mdev, &pd->pdn); |
e126ba97 EC |
1702 | if (err) { |
1703 | kfree(pd); | |
1704 | return ERR_PTR(err); | |
1705 | } | |
1706 | ||
1707 | if (context) { | |
1708 | resp.pdn = pd->pdn; | |
1709 | if (ib_copy_to_udata(udata, &resp, sizeof(resp))) { | |
9603b61d | 1710 | mlx5_core_dealloc_pd(to_mdev(ibdev)->mdev, pd->pdn); |
e126ba97 EC |
1711 | kfree(pd); |
1712 | return ERR_PTR(-EFAULT); | |
1713 | } | |
e126ba97 EC |
1714 | } |
1715 | ||
1716 | return &pd->ibpd; | |
1717 | } | |
1718 | ||
1719 | static int mlx5_ib_dealloc_pd(struct ib_pd *pd) | |
1720 | { | |
1721 | struct mlx5_ib_dev *mdev = to_mdev(pd->device); | |
1722 | struct mlx5_ib_pd *mpd = to_mpd(pd); | |
1723 | ||
9603b61d | 1724 | mlx5_core_dealloc_pd(mdev->mdev, mpd->pdn); |
e126ba97 EC |
1725 | kfree(mpd); |
1726 | ||
1727 | return 0; | |
1728 | } | |
1729 | ||
466fa6d2 MG |
1730 | enum { |
1731 | MATCH_CRITERIA_ENABLE_OUTER_BIT, | |
1732 | MATCH_CRITERIA_ENABLE_MISC_BIT, | |
1733 | MATCH_CRITERIA_ENABLE_INNER_BIT | |
1734 | }; | |
1735 | ||
1736 | #define HEADER_IS_ZERO(match_criteria, headers) \ | |
1737 | !(memchr_inv(MLX5_ADDR_OF(fte_match_param, match_criteria, headers), \ | |
1738 | 0, MLX5_FLD_SZ_BYTES(fte_match_param, headers))) \ | |
038d2ef8 | 1739 | |
466fa6d2 | 1740 | static u8 get_match_criteria_enable(u32 *match_criteria) |
038d2ef8 | 1741 | { |
466fa6d2 | 1742 | u8 match_criteria_enable; |
038d2ef8 | 1743 | |
466fa6d2 MG |
1744 | match_criteria_enable = |
1745 | (!HEADER_IS_ZERO(match_criteria, outer_headers)) << | |
1746 | MATCH_CRITERIA_ENABLE_OUTER_BIT; | |
1747 | match_criteria_enable |= | |
1748 | (!HEADER_IS_ZERO(match_criteria, misc_parameters)) << | |
1749 | MATCH_CRITERIA_ENABLE_MISC_BIT; | |
1750 | match_criteria_enable |= | |
1751 | (!HEADER_IS_ZERO(match_criteria, inner_headers)) << | |
1752 | MATCH_CRITERIA_ENABLE_INNER_BIT; | |
1753 | ||
1754 | return match_criteria_enable; | |
038d2ef8 MG |
1755 | } |
1756 | ||
ca0d4753 MG |
1757 | static void set_proto(void *outer_c, void *outer_v, u8 mask, u8 val) |
1758 | { | |
1759 | MLX5_SET(fte_match_set_lyr_2_4, outer_c, ip_protocol, mask); | |
1760 | MLX5_SET(fte_match_set_lyr_2_4, outer_v, ip_protocol, val); | |
038d2ef8 MG |
1761 | } |
1762 | ||
2d1e697e MR |
1763 | static void set_flow_label(void *misc_c, void *misc_v, u8 mask, u8 val, |
1764 | bool inner) | |
1765 | { | |
1766 | if (inner) { | |
1767 | MLX5_SET(fte_match_set_misc, | |
1768 | misc_c, inner_ipv6_flow_label, mask); | |
1769 | MLX5_SET(fte_match_set_misc, | |
1770 | misc_v, inner_ipv6_flow_label, val); | |
1771 | } else { | |
1772 | MLX5_SET(fte_match_set_misc, | |
1773 | misc_c, outer_ipv6_flow_label, mask); | |
1774 | MLX5_SET(fte_match_set_misc, | |
1775 | misc_v, outer_ipv6_flow_label, val); | |
1776 | } | |
1777 | } | |
1778 | ||
ca0d4753 MG |
1779 | static void set_tos(void *outer_c, void *outer_v, u8 mask, u8 val) |
1780 | { | |
1781 | MLX5_SET(fte_match_set_lyr_2_4, outer_c, ip_ecn, mask); | |
1782 | MLX5_SET(fte_match_set_lyr_2_4, outer_v, ip_ecn, val); | |
1783 | MLX5_SET(fte_match_set_lyr_2_4, outer_c, ip_dscp, mask >> 2); | |
1784 | MLX5_SET(fte_match_set_lyr_2_4, outer_v, ip_dscp, val >> 2); | |
1785 | } | |
1786 | ||
c47ac6ae MG |
1787 | #define LAST_ETH_FIELD vlan_tag |
1788 | #define LAST_IB_FIELD sl | |
ca0d4753 | 1789 | #define LAST_IPV4_FIELD tos |
466fa6d2 | 1790 | #define LAST_IPV6_FIELD traffic_class |
c47ac6ae | 1791 | #define LAST_TCP_UDP_FIELD src_port |
ffb30d8f | 1792 | #define LAST_TUNNEL_FIELD tunnel_id |
2ac693f9 | 1793 | #define LAST_FLOW_TAG_FIELD tag_id |
a22ed86c | 1794 | #define LAST_DROP_FIELD size |
c47ac6ae MG |
1795 | |
1796 | /* Field is the last supported field */ | |
1797 | #define FIELDS_NOT_SUPPORTED(filter, field)\ | |
1798 | memchr_inv((void *)&filter.field +\ | |
1799 | sizeof(filter.field), 0,\ | |
1800 | sizeof(filter) -\ | |
1801 | offsetof(typeof(filter), field) -\ | |
1802 | sizeof(filter.field)) | |
1803 | ||
19cc7524 AL |
1804 | #define IPV4_VERSION 4 |
1805 | #define IPV6_VERSION 6 | |
1806 | static int parse_flow_attr(struct mlx5_core_dev *mdev, u32 *match_c, | |
1807 | u32 *match_v, const union ib_flow_spec *ib_spec, | |
a22ed86c | 1808 | u32 *tag_id, bool *is_drop) |
038d2ef8 | 1809 | { |
466fa6d2 MG |
1810 | void *misc_params_c = MLX5_ADDR_OF(fte_match_param, match_c, |
1811 | misc_parameters); | |
1812 | void *misc_params_v = MLX5_ADDR_OF(fte_match_param, match_v, | |
1813 | misc_parameters); | |
2d1e697e MR |
1814 | void *headers_c; |
1815 | void *headers_v; | |
19cc7524 | 1816 | int match_ipv; |
2d1e697e MR |
1817 | |
1818 | if (ib_spec->type & IB_FLOW_SPEC_INNER) { | |
1819 | headers_c = MLX5_ADDR_OF(fte_match_param, match_c, | |
1820 | inner_headers); | |
1821 | headers_v = MLX5_ADDR_OF(fte_match_param, match_v, | |
1822 | inner_headers); | |
19cc7524 AL |
1823 | match_ipv = MLX5_CAP_FLOWTABLE_NIC_RX(mdev, |
1824 | ft_field_support.inner_ip_version); | |
2d1e697e MR |
1825 | } else { |
1826 | headers_c = MLX5_ADDR_OF(fte_match_param, match_c, | |
1827 | outer_headers); | |
1828 | headers_v = MLX5_ADDR_OF(fte_match_param, match_v, | |
1829 | outer_headers); | |
19cc7524 AL |
1830 | match_ipv = MLX5_CAP_FLOWTABLE_NIC_RX(mdev, |
1831 | ft_field_support.outer_ip_version); | |
2d1e697e | 1832 | } |
466fa6d2 | 1833 | |
2d1e697e | 1834 | switch (ib_spec->type & ~IB_FLOW_SPEC_INNER) { |
038d2ef8 | 1835 | case IB_FLOW_SPEC_ETH: |
c47ac6ae | 1836 | if (FIELDS_NOT_SUPPORTED(ib_spec->eth.mask, LAST_ETH_FIELD)) |
1ffd3a26 | 1837 | return -EOPNOTSUPP; |
038d2ef8 | 1838 | |
2d1e697e | 1839 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, |
038d2ef8 MG |
1840 | dmac_47_16), |
1841 | ib_spec->eth.mask.dst_mac); | |
2d1e697e | 1842 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, |
038d2ef8 MG |
1843 | dmac_47_16), |
1844 | ib_spec->eth.val.dst_mac); | |
1845 | ||
2d1e697e | 1846 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, |
ee3da804 MG |
1847 | smac_47_16), |
1848 | ib_spec->eth.mask.src_mac); | |
2d1e697e | 1849 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, |
ee3da804 MG |
1850 | smac_47_16), |
1851 | ib_spec->eth.val.src_mac); | |
1852 | ||
038d2ef8 | 1853 | if (ib_spec->eth.mask.vlan_tag) { |
2d1e697e | 1854 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, |
10543365 | 1855 | cvlan_tag, 1); |
2d1e697e | 1856 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, |
10543365 | 1857 | cvlan_tag, 1); |
038d2ef8 | 1858 | |
2d1e697e | 1859 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, |
038d2ef8 | 1860 | first_vid, ntohs(ib_spec->eth.mask.vlan_tag)); |
2d1e697e | 1861 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, |
038d2ef8 MG |
1862 | first_vid, ntohs(ib_spec->eth.val.vlan_tag)); |
1863 | ||
2d1e697e | 1864 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, |
038d2ef8 MG |
1865 | first_cfi, |
1866 | ntohs(ib_spec->eth.mask.vlan_tag) >> 12); | |
2d1e697e | 1867 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, |
038d2ef8 MG |
1868 | first_cfi, |
1869 | ntohs(ib_spec->eth.val.vlan_tag) >> 12); | |
1870 | ||
2d1e697e | 1871 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, |
038d2ef8 MG |
1872 | first_prio, |
1873 | ntohs(ib_spec->eth.mask.vlan_tag) >> 13); | |
2d1e697e | 1874 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, |
038d2ef8 MG |
1875 | first_prio, |
1876 | ntohs(ib_spec->eth.val.vlan_tag) >> 13); | |
1877 | } | |
2d1e697e | 1878 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, |
038d2ef8 | 1879 | ethertype, ntohs(ib_spec->eth.mask.ether_type)); |
2d1e697e | 1880 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, |
038d2ef8 MG |
1881 | ethertype, ntohs(ib_spec->eth.val.ether_type)); |
1882 | break; | |
1883 | case IB_FLOW_SPEC_IPV4: | |
c47ac6ae | 1884 | if (FIELDS_NOT_SUPPORTED(ib_spec->ipv4.mask, LAST_IPV4_FIELD)) |
1ffd3a26 | 1885 | return -EOPNOTSUPP; |
038d2ef8 | 1886 | |
19cc7524 AL |
1887 | if (match_ipv) { |
1888 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
1889 | ip_version, 0xf); | |
1890 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
1891 | ip_version, IPV4_VERSION); | |
1892 | } else { | |
1893 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
1894 | ethertype, 0xffff); | |
1895 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
1896 | ethertype, ETH_P_IP); | |
1897 | } | |
038d2ef8 | 1898 | |
2d1e697e | 1899 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, |
038d2ef8 MG |
1900 | src_ipv4_src_ipv6.ipv4_layout.ipv4), |
1901 | &ib_spec->ipv4.mask.src_ip, | |
1902 | sizeof(ib_spec->ipv4.mask.src_ip)); | |
2d1e697e | 1903 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, |
038d2ef8 MG |
1904 | src_ipv4_src_ipv6.ipv4_layout.ipv4), |
1905 | &ib_spec->ipv4.val.src_ip, | |
1906 | sizeof(ib_spec->ipv4.val.src_ip)); | |
2d1e697e | 1907 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, |
038d2ef8 MG |
1908 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4), |
1909 | &ib_spec->ipv4.mask.dst_ip, | |
1910 | sizeof(ib_spec->ipv4.mask.dst_ip)); | |
2d1e697e | 1911 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, |
038d2ef8 MG |
1912 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4), |
1913 | &ib_spec->ipv4.val.dst_ip, | |
1914 | sizeof(ib_spec->ipv4.val.dst_ip)); | |
ca0d4753 | 1915 | |
2d1e697e | 1916 | set_tos(headers_c, headers_v, |
ca0d4753 MG |
1917 | ib_spec->ipv4.mask.tos, ib_spec->ipv4.val.tos); |
1918 | ||
2d1e697e | 1919 | set_proto(headers_c, headers_v, |
ca0d4753 | 1920 | ib_spec->ipv4.mask.proto, ib_spec->ipv4.val.proto); |
038d2ef8 | 1921 | break; |
026bae0c | 1922 | case IB_FLOW_SPEC_IPV6: |
c47ac6ae | 1923 | if (FIELDS_NOT_SUPPORTED(ib_spec->ipv6.mask, LAST_IPV6_FIELD)) |
1ffd3a26 | 1924 | return -EOPNOTSUPP; |
026bae0c | 1925 | |
19cc7524 AL |
1926 | if (match_ipv) { |
1927 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
1928 | ip_version, 0xf); | |
1929 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
1930 | ip_version, IPV6_VERSION); | |
1931 | } else { | |
1932 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
1933 | ethertype, 0xffff); | |
1934 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
1935 | ethertype, ETH_P_IPV6); | |
1936 | } | |
026bae0c | 1937 | |
2d1e697e | 1938 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, |
026bae0c MG |
1939 | src_ipv4_src_ipv6.ipv6_layout.ipv6), |
1940 | &ib_spec->ipv6.mask.src_ip, | |
1941 | sizeof(ib_spec->ipv6.mask.src_ip)); | |
2d1e697e | 1942 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, |
026bae0c MG |
1943 | src_ipv4_src_ipv6.ipv6_layout.ipv6), |
1944 | &ib_spec->ipv6.val.src_ip, | |
1945 | sizeof(ib_spec->ipv6.val.src_ip)); | |
2d1e697e | 1946 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, |
026bae0c MG |
1947 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), |
1948 | &ib_spec->ipv6.mask.dst_ip, | |
1949 | sizeof(ib_spec->ipv6.mask.dst_ip)); | |
2d1e697e | 1950 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, |
026bae0c MG |
1951 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), |
1952 | &ib_spec->ipv6.val.dst_ip, | |
1953 | sizeof(ib_spec->ipv6.val.dst_ip)); | |
466fa6d2 | 1954 | |
2d1e697e | 1955 | set_tos(headers_c, headers_v, |
466fa6d2 MG |
1956 | ib_spec->ipv6.mask.traffic_class, |
1957 | ib_spec->ipv6.val.traffic_class); | |
1958 | ||
2d1e697e | 1959 | set_proto(headers_c, headers_v, |
466fa6d2 MG |
1960 | ib_spec->ipv6.mask.next_hdr, |
1961 | ib_spec->ipv6.val.next_hdr); | |
1962 | ||
2d1e697e MR |
1963 | set_flow_label(misc_params_c, misc_params_v, |
1964 | ntohl(ib_spec->ipv6.mask.flow_label), | |
1965 | ntohl(ib_spec->ipv6.val.flow_label), | |
1966 | ib_spec->type & IB_FLOW_SPEC_INNER); | |
1967 | ||
026bae0c | 1968 | break; |
038d2ef8 | 1969 | case IB_FLOW_SPEC_TCP: |
c47ac6ae MG |
1970 | if (FIELDS_NOT_SUPPORTED(ib_spec->tcp_udp.mask, |
1971 | LAST_TCP_UDP_FIELD)) | |
1ffd3a26 | 1972 | return -EOPNOTSUPP; |
038d2ef8 | 1973 | |
2d1e697e | 1974 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_protocol, |
038d2ef8 | 1975 | 0xff); |
2d1e697e | 1976 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, |
038d2ef8 MG |
1977 | IPPROTO_TCP); |
1978 | ||
2d1e697e | 1979 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, tcp_sport, |
038d2ef8 | 1980 | ntohs(ib_spec->tcp_udp.mask.src_port)); |
2d1e697e | 1981 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, tcp_sport, |
038d2ef8 MG |
1982 | ntohs(ib_spec->tcp_udp.val.src_port)); |
1983 | ||
2d1e697e | 1984 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, tcp_dport, |
038d2ef8 | 1985 | ntohs(ib_spec->tcp_udp.mask.dst_port)); |
2d1e697e | 1986 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, tcp_dport, |
038d2ef8 MG |
1987 | ntohs(ib_spec->tcp_udp.val.dst_port)); |
1988 | break; | |
1989 | case IB_FLOW_SPEC_UDP: | |
c47ac6ae MG |
1990 | if (FIELDS_NOT_SUPPORTED(ib_spec->tcp_udp.mask, |
1991 | LAST_TCP_UDP_FIELD)) | |
1ffd3a26 | 1992 | return -EOPNOTSUPP; |
038d2ef8 | 1993 | |
2d1e697e | 1994 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_protocol, |
038d2ef8 | 1995 | 0xff); |
2d1e697e | 1996 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, |
038d2ef8 MG |
1997 | IPPROTO_UDP); |
1998 | ||
2d1e697e | 1999 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, udp_sport, |
038d2ef8 | 2000 | ntohs(ib_spec->tcp_udp.mask.src_port)); |
2d1e697e | 2001 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, udp_sport, |
038d2ef8 MG |
2002 | ntohs(ib_spec->tcp_udp.val.src_port)); |
2003 | ||
2d1e697e | 2004 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, udp_dport, |
038d2ef8 | 2005 | ntohs(ib_spec->tcp_udp.mask.dst_port)); |
2d1e697e | 2006 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, udp_dport, |
038d2ef8 MG |
2007 | ntohs(ib_spec->tcp_udp.val.dst_port)); |
2008 | break; | |
ffb30d8f MR |
2009 | case IB_FLOW_SPEC_VXLAN_TUNNEL: |
2010 | if (FIELDS_NOT_SUPPORTED(ib_spec->tunnel.mask, | |
2011 | LAST_TUNNEL_FIELD)) | |
1ffd3a26 | 2012 | return -EOPNOTSUPP; |
ffb30d8f MR |
2013 | |
2014 | MLX5_SET(fte_match_set_misc, misc_params_c, vxlan_vni, | |
2015 | ntohl(ib_spec->tunnel.mask.tunnel_id)); | |
2016 | MLX5_SET(fte_match_set_misc, misc_params_v, vxlan_vni, | |
2017 | ntohl(ib_spec->tunnel.val.tunnel_id)); | |
2018 | break; | |
2ac693f9 MR |
2019 | case IB_FLOW_SPEC_ACTION_TAG: |
2020 | if (FIELDS_NOT_SUPPORTED(ib_spec->flow_tag, | |
2021 | LAST_FLOW_TAG_FIELD)) | |
2022 | return -EOPNOTSUPP; | |
2023 | if (ib_spec->flow_tag.tag_id >= BIT(24)) | |
2024 | return -EINVAL; | |
2025 | ||
2026 | *tag_id = ib_spec->flow_tag.tag_id; | |
2027 | break; | |
a22ed86c SS |
2028 | case IB_FLOW_SPEC_ACTION_DROP: |
2029 | if (FIELDS_NOT_SUPPORTED(ib_spec->drop, | |
2030 | LAST_DROP_FIELD)) | |
2031 | return -EOPNOTSUPP; | |
2032 | *is_drop = true; | |
2033 | break; | |
038d2ef8 MG |
2034 | default: |
2035 | return -EINVAL; | |
2036 | } | |
2037 | ||
2038 | return 0; | |
2039 | } | |
2040 | ||
2041 | /* If a flow could catch both multicast and unicast packets, | |
2042 | * it won't fall into the multicast flow steering table and this rule | |
2043 | * could steal other multicast packets. | |
2044 | */ | |
2045 | static bool flow_is_multicast_only(struct ib_flow_attr *ib_attr) | |
2046 | { | |
2047 | struct ib_flow_spec_eth *eth_spec; | |
2048 | ||
2049 | if (ib_attr->type != IB_FLOW_ATTR_NORMAL || | |
2050 | ib_attr->size < sizeof(struct ib_flow_attr) + | |
2051 | sizeof(struct ib_flow_spec_eth) || | |
2052 | ib_attr->num_of_specs < 1) | |
2053 | return false; | |
2054 | ||
2055 | eth_spec = (struct ib_flow_spec_eth *)(ib_attr + 1); | |
2056 | if (eth_spec->type != IB_FLOW_SPEC_ETH || | |
2057 | eth_spec->size != sizeof(*eth_spec)) | |
2058 | return false; | |
2059 | ||
2060 | return is_multicast_ether_addr(eth_spec->mask.dst_mac) && | |
2061 | is_multicast_ether_addr(eth_spec->val.dst_mac); | |
2062 | } | |
2063 | ||
19cc7524 AL |
2064 | static bool is_valid_ethertype(struct mlx5_core_dev *mdev, |
2065 | const struct ib_flow_attr *flow_attr, | |
0f750966 | 2066 | bool check_inner) |
038d2ef8 MG |
2067 | { |
2068 | union ib_flow_spec *ib_spec = (union ib_flow_spec *)(flow_attr + 1); | |
19cc7524 AL |
2069 | int match_ipv = check_inner ? |
2070 | MLX5_CAP_FLOWTABLE_NIC_RX(mdev, | |
2071 | ft_field_support.inner_ip_version) : | |
2072 | MLX5_CAP_FLOWTABLE_NIC_RX(mdev, | |
2073 | ft_field_support.outer_ip_version); | |
0f750966 AL |
2074 | int inner_bit = check_inner ? IB_FLOW_SPEC_INNER : 0; |
2075 | bool ipv4_spec_valid, ipv6_spec_valid; | |
2076 | unsigned int ip_spec_type = 0; | |
2077 | bool has_ethertype = false; | |
038d2ef8 | 2078 | unsigned int spec_index; |
0f750966 AL |
2079 | bool mask_valid = true; |
2080 | u16 eth_type = 0; | |
2081 | bool type_valid; | |
038d2ef8 MG |
2082 | |
2083 | /* Validate that ethertype is correct */ | |
2084 | for (spec_index = 0; spec_index < flow_attr->num_of_specs; spec_index++) { | |
0f750966 | 2085 | if ((ib_spec->type == (IB_FLOW_SPEC_ETH | inner_bit)) && |
038d2ef8 | 2086 | ib_spec->eth.mask.ether_type) { |
0f750966 AL |
2087 | mask_valid = (ib_spec->eth.mask.ether_type == |
2088 | htons(0xffff)); | |
2089 | has_ethertype = true; | |
2090 | eth_type = ntohs(ib_spec->eth.val.ether_type); | |
2091 | } else if ((ib_spec->type == (IB_FLOW_SPEC_IPV4 | inner_bit)) || | |
2092 | (ib_spec->type == (IB_FLOW_SPEC_IPV6 | inner_bit))) { | |
2093 | ip_spec_type = ib_spec->type; | |
038d2ef8 MG |
2094 | } |
2095 | ib_spec = (void *)ib_spec + ib_spec->size; | |
2096 | } | |
0f750966 AL |
2097 | |
2098 | type_valid = (!has_ethertype) || (!ip_spec_type); | |
2099 | if (!type_valid && mask_valid) { | |
2100 | ipv4_spec_valid = (eth_type == ETH_P_IP) && | |
2101 | (ip_spec_type == (IB_FLOW_SPEC_IPV4 | inner_bit)); | |
2102 | ipv6_spec_valid = (eth_type == ETH_P_IPV6) && | |
2103 | (ip_spec_type == (IB_FLOW_SPEC_IPV6 | inner_bit)); | |
19cc7524 AL |
2104 | |
2105 | type_valid = (ipv4_spec_valid) || (ipv6_spec_valid) || | |
2106 | (((eth_type == ETH_P_MPLS_UC) || | |
2107 | (eth_type == ETH_P_MPLS_MC)) && match_ipv); | |
0f750966 AL |
2108 | } |
2109 | ||
2110 | return type_valid; | |
2111 | } | |
2112 | ||
19cc7524 AL |
2113 | static bool is_valid_attr(struct mlx5_core_dev *mdev, |
2114 | const struct ib_flow_attr *flow_attr) | |
0f750966 | 2115 | { |
19cc7524 AL |
2116 | return is_valid_ethertype(mdev, flow_attr, false) && |
2117 | is_valid_ethertype(mdev, flow_attr, true); | |
038d2ef8 MG |
2118 | } |
2119 | ||
2120 | static void put_flow_table(struct mlx5_ib_dev *dev, | |
2121 | struct mlx5_ib_flow_prio *prio, bool ft_added) | |
2122 | { | |
2123 | prio->refcount -= !!ft_added; | |
2124 | if (!prio->refcount) { | |
2125 | mlx5_destroy_flow_table(prio->flow_table); | |
2126 | prio->flow_table = NULL; | |
2127 | } | |
2128 | } | |
2129 | ||
2130 | static int mlx5_ib_destroy_flow(struct ib_flow *flow_id) | |
2131 | { | |
2132 | struct mlx5_ib_dev *dev = to_mdev(flow_id->qp->device); | |
2133 | struct mlx5_ib_flow_handler *handler = container_of(flow_id, | |
2134 | struct mlx5_ib_flow_handler, | |
2135 | ibflow); | |
2136 | struct mlx5_ib_flow_handler *iter, *tmp; | |
2137 | ||
2138 | mutex_lock(&dev->flow_db.lock); | |
2139 | ||
2140 | list_for_each_entry_safe(iter, tmp, &handler->list, list) { | |
74491de9 | 2141 | mlx5_del_flow_rules(iter->rule); |
cc0e5d42 | 2142 | put_flow_table(dev, iter->prio, true); |
038d2ef8 MG |
2143 | list_del(&iter->list); |
2144 | kfree(iter); | |
2145 | } | |
2146 | ||
74491de9 | 2147 | mlx5_del_flow_rules(handler->rule); |
5497adc6 | 2148 | put_flow_table(dev, handler->prio, true); |
038d2ef8 MG |
2149 | mutex_unlock(&dev->flow_db.lock); |
2150 | ||
2151 | kfree(handler); | |
2152 | ||
2153 | return 0; | |
2154 | } | |
2155 | ||
35d19011 MG |
2156 | static int ib_prio_to_core_prio(unsigned int priority, bool dont_trap) |
2157 | { | |
2158 | priority *= 2; | |
2159 | if (!dont_trap) | |
2160 | priority++; | |
2161 | return priority; | |
2162 | } | |
2163 | ||
cc0e5d42 MG |
2164 | enum flow_table_type { |
2165 | MLX5_IB_FT_RX, | |
2166 | MLX5_IB_FT_TX | |
2167 | }; | |
2168 | ||
00b7c2ab MG |
2169 | #define MLX5_FS_MAX_TYPES 6 |
2170 | #define MLX5_FS_MAX_ENTRIES BIT(16) | |
038d2ef8 | 2171 | static struct mlx5_ib_flow_prio *get_flow_table(struct mlx5_ib_dev *dev, |
cc0e5d42 MG |
2172 | struct ib_flow_attr *flow_attr, |
2173 | enum flow_table_type ft_type) | |
038d2ef8 | 2174 | { |
35d19011 | 2175 | bool dont_trap = flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP; |
038d2ef8 MG |
2176 | struct mlx5_flow_namespace *ns = NULL; |
2177 | struct mlx5_ib_flow_prio *prio; | |
2178 | struct mlx5_flow_table *ft; | |
dac388ef | 2179 | int max_table_size; |
038d2ef8 MG |
2180 | int num_entries; |
2181 | int num_groups; | |
2182 | int priority; | |
2183 | int err = 0; | |
2184 | ||
dac388ef MG |
2185 | max_table_size = BIT(MLX5_CAP_FLOWTABLE_NIC_RX(dev->mdev, |
2186 | log_max_ft_size)); | |
038d2ef8 | 2187 | if (flow_attr->type == IB_FLOW_ATTR_NORMAL) { |
35d19011 MG |
2188 | if (flow_is_multicast_only(flow_attr) && |
2189 | !dont_trap) | |
038d2ef8 MG |
2190 | priority = MLX5_IB_FLOW_MCAST_PRIO; |
2191 | else | |
35d19011 MG |
2192 | priority = ib_prio_to_core_prio(flow_attr->priority, |
2193 | dont_trap); | |
038d2ef8 MG |
2194 | ns = mlx5_get_flow_namespace(dev->mdev, |
2195 | MLX5_FLOW_NAMESPACE_BYPASS); | |
2196 | num_entries = MLX5_FS_MAX_ENTRIES; | |
2197 | num_groups = MLX5_FS_MAX_TYPES; | |
2198 | prio = &dev->flow_db.prios[priority]; | |
2199 | } else if (flow_attr->type == IB_FLOW_ATTR_ALL_DEFAULT || | |
2200 | flow_attr->type == IB_FLOW_ATTR_MC_DEFAULT) { | |
2201 | ns = mlx5_get_flow_namespace(dev->mdev, | |
2202 | MLX5_FLOW_NAMESPACE_LEFTOVERS); | |
2203 | build_leftovers_ft_param(&priority, | |
2204 | &num_entries, | |
2205 | &num_groups); | |
2206 | prio = &dev->flow_db.prios[MLX5_IB_FLOW_LEFTOVERS_PRIO]; | |
cc0e5d42 MG |
2207 | } else if (flow_attr->type == IB_FLOW_ATTR_SNIFFER) { |
2208 | if (!MLX5_CAP_FLOWTABLE(dev->mdev, | |
2209 | allow_sniffer_and_nic_rx_shared_tir)) | |
2210 | return ERR_PTR(-ENOTSUPP); | |
2211 | ||
2212 | ns = mlx5_get_flow_namespace(dev->mdev, ft_type == MLX5_IB_FT_RX ? | |
2213 | MLX5_FLOW_NAMESPACE_SNIFFER_RX : | |
2214 | MLX5_FLOW_NAMESPACE_SNIFFER_TX); | |
2215 | ||
2216 | prio = &dev->flow_db.sniffer[ft_type]; | |
2217 | priority = 0; | |
2218 | num_entries = 1; | |
2219 | num_groups = 1; | |
038d2ef8 MG |
2220 | } |
2221 | ||
2222 | if (!ns) | |
2223 | return ERR_PTR(-ENOTSUPP); | |
2224 | ||
dac388ef MG |
2225 | if (num_entries > max_table_size) |
2226 | return ERR_PTR(-ENOMEM); | |
2227 | ||
038d2ef8 MG |
2228 | ft = prio->flow_table; |
2229 | if (!ft) { | |
2230 | ft = mlx5_create_auto_grouped_flow_table(ns, priority, | |
2231 | num_entries, | |
d63cd286 | 2232 | num_groups, |
c9f1b073 | 2233 | 0, 0); |
038d2ef8 MG |
2234 | |
2235 | if (!IS_ERR(ft)) { | |
2236 | prio->refcount = 0; | |
2237 | prio->flow_table = ft; | |
2238 | } else { | |
2239 | err = PTR_ERR(ft); | |
2240 | } | |
2241 | } | |
2242 | ||
2243 | return err ? ERR_PTR(err) : prio; | |
2244 | } | |
2245 | ||
2246 | static struct mlx5_ib_flow_handler *create_flow_rule(struct mlx5_ib_dev *dev, | |
2247 | struct mlx5_ib_flow_prio *ft_prio, | |
dd063d0e | 2248 | const struct ib_flow_attr *flow_attr, |
038d2ef8 MG |
2249 | struct mlx5_flow_destination *dst) |
2250 | { | |
2251 | struct mlx5_flow_table *ft = ft_prio->flow_table; | |
2252 | struct mlx5_ib_flow_handler *handler; | |
66958ed9 | 2253 | struct mlx5_flow_act flow_act = {0}; |
c5bb1730 | 2254 | struct mlx5_flow_spec *spec; |
a22ed86c | 2255 | struct mlx5_flow_destination *rule_dst = dst; |
dd063d0e | 2256 | const void *ib_flow = (const void *)flow_attr + sizeof(*flow_attr); |
038d2ef8 | 2257 | unsigned int spec_index; |
2ac693f9 | 2258 | u32 flow_tag = MLX5_FS_DEFAULT_FLOW_TAG; |
a22ed86c | 2259 | bool is_drop = false; |
038d2ef8 | 2260 | int err = 0; |
a22ed86c | 2261 | int dest_num = 1; |
038d2ef8 | 2262 | |
19cc7524 | 2263 | if (!is_valid_attr(dev->mdev, flow_attr)) |
038d2ef8 MG |
2264 | return ERR_PTR(-EINVAL); |
2265 | ||
c5bb1730 | 2266 | spec = mlx5_vzalloc(sizeof(*spec)); |
038d2ef8 | 2267 | handler = kzalloc(sizeof(*handler), GFP_KERNEL); |
c5bb1730 | 2268 | if (!handler || !spec) { |
038d2ef8 MG |
2269 | err = -ENOMEM; |
2270 | goto free; | |
2271 | } | |
2272 | ||
2273 | INIT_LIST_HEAD(&handler->list); | |
2274 | ||
2275 | for (spec_index = 0; spec_index < flow_attr->num_of_specs; spec_index++) { | |
19cc7524 | 2276 | err = parse_flow_attr(dev->mdev, spec->match_criteria, |
a22ed86c SS |
2277 | spec->match_value, |
2278 | ib_flow, &flow_tag, &is_drop); | |
038d2ef8 MG |
2279 | if (err < 0) |
2280 | goto free; | |
2281 | ||
2282 | ib_flow += ((union ib_flow_spec *)ib_flow)->size; | |
2283 | } | |
2284 | ||
466fa6d2 | 2285 | spec->match_criteria_enable = get_match_criteria_enable(spec->match_criteria); |
a22ed86c SS |
2286 | if (is_drop) { |
2287 | flow_act.action = MLX5_FLOW_CONTEXT_ACTION_DROP; | |
2288 | rule_dst = NULL; | |
2289 | dest_num = 0; | |
2290 | } else { | |
2291 | flow_act.action = dst ? MLX5_FLOW_CONTEXT_ACTION_FWD_DEST : | |
2292 | MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO; | |
2293 | } | |
2ac693f9 MR |
2294 | |
2295 | if (flow_tag != MLX5_FS_DEFAULT_FLOW_TAG && | |
2296 | (flow_attr->type == IB_FLOW_ATTR_ALL_DEFAULT || | |
2297 | flow_attr->type == IB_FLOW_ATTR_MC_DEFAULT)) { | |
2298 | mlx5_ib_warn(dev, "Flow tag %u and attribute type %x isn't allowed in leftovers\n", | |
2299 | flow_tag, flow_attr->type); | |
2300 | err = -EINVAL; | |
2301 | goto free; | |
2302 | } | |
2303 | flow_act.flow_tag = flow_tag; | |
74491de9 | 2304 | handler->rule = mlx5_add_flow_rules(ft, spec, |
66958ed9 | 2305 | &flow_act, |
a22ed86c | 2306 | rule_dst, dest_num); |
038d2ef8 MG |
2307 | |
2308 | if (IS_ERR(handler->rule)) { | |
2309 | err = PTR_ERR(handler->rule); | |
2310 | goto free; | |
2311 | } | |
2312 | ||
d9d4980a | 2313 | ft_prio->refcount++; |
5497adc6 | 2314 | handler->prio = ft_prio; |
038d2ef8 MG |
2315 | |
2316 | ft_prio->flow_table = ft; | |
2317 | free: | |
2318 | if (err) | |
2319 | kfree(handler); | |
c5bb1730 | 2320 | kvfree(spec); |
038d2ef8 MG |
2321 | return err ? ERR_PTR(err) : handler; |
2322 | } | |
2323 | ||
35d19011 MG |
2324 | static struct mlx5_ib_flow_handler *create_dont_trap_rule(struct mlx5_ib_dev *dev, |
2325 | struct mlx5_ib_flow_prio *ft_prio, | |
2326 | struct ib_flow_attr *flow_attr, | |
2327 | struct mlx5_flow_destination *dst) | |
2328 | { | |
2329 | struct mlx5_ib_flow_handler *handler_dst = NULL; | |
2330 | struct mlx5_ib_flow_handler *handler = NULL; | |
2331 | ||
2332 | handler = create_flow_rule(dev, ft_prio, flow_attr, NULL); | |
2333 | if (!IS_ERR(handler)) { | |
2334 | handler_dst = create_flow_rule(dev, ft_prio, | |
2335 | flow_attr, dst); | |
2336 | if (IS_ERR(handler_dst)) { | |
74491de9 | 2337 | mlx5_del_flow_rules(handler->rule); |
d9d4980a | 2338 | ft_prio->refcount--; |
35d19011 MG |
2339 | kfree(handler); |
2340 | handler = handler_dst; | |
2341 | } else { | |
2342 | list_add(&handler_dst->list, &handler->list); | |
2343 | } | |
2344 | } | |
2345 | ||
2346 | return handler; | |
2347 | } | |
038d2ef8 MG |
2348 | enum { |
2349 | LEFTOVERS_MC, | |
2350 | LEFTOVERS_UC, | |
2351 | }; | |
2352 | ||
2353 | static struct mlx5_ib_flow_handler *create_leftovers_rule(struct mlx5_ib_dev *dev, | |
2354 | struct mlx5_ib_flow_prio *ft_prio, | |
2355 | struct ib_flow_attr *flow_attr, | |
2356 | struct mlx5_flow_destination *dst) | |
2357 | { | |
2358 | struct mlx5_ib_flow_handler *handler_ucast = NULL; | |
2359 | struct mlx5_ib_flow_handler *handler = NULL; | |
2360 | ||
2361 | static struct { | |
2362 | struct ib_flow_attr flow_attr; | |
2363 | struct ib_flow_spec_eth eth_flow; | |
2364 | } leftovers_specs[] = { | |
2365 | [LEFTOVERS_MC] = { | |
2366 | .flow_attr = { | |
2367 | .num_of_specs = 1, | |
2368 | .size = sizeof(leftovers_specs[0]) | |
2369 | }, | |
2370 | .eth_flow = { | |
2371 | .type = IB_FLOW_SPEC_ETH, | |
2372 | .size = sizeof(struct ib_flow_spec_eth), | |
2373 | .mask = {.dst_mac = {0x1} }, | |
2374 | .val = {.dst_mac = {0x1} } | |
2375 | } | |
2376 | }, | |
2377 | [LEFTOVERS_UC] = { | |
2378 | .flow_attr = { | |
2379 | .num_of_specs = 1, | |
2380 | .size = sizeof(leftovers_specs[0]) | |
2381 | }, | |
2382 | .eth_flow = { | |
2383 | .type = IB_FLOW_SPEC_ETH, | |
2384 | .size = sizeof(struct ib_flow_spec_eth), | |
2385 | .mask = {.dst_mac = {0x1} }, | |
2386 | .val = {.dst_mac = {} } | |
2387 | } | |
2388 | } | |
2389 | }; | |
2390 | ||
2391 | handler = create_flow_rule(dev, ft_prio, | |
2392 | &leftovers_specs[LEFTOVERS_MC].flow_attr, | |
2393 | dst); | |
2394 | if (!IS_ERR(handler) && | |
2395 | flow_attr->type == IB_FLOW_ATTR_ALL_DEFAULT) { | |
2396 | handler_ucast = create_flow_rule(dev, ft_prio, | |
2397 | &leftovers_specs[LEFTOVERS_UC].flow_attr, | |
2398 | dst); | |
2399 | if (IS_ERR(handler_ucast)) { | |
74491de9 | 2400 | mlx5_del_flow_rules(handler->rule); |
d9d4980a | 2401 | ft_prio->refcount--; |
038d2ef8 MG |
2402 | kfree(handler); |
2403 | handler = handler_ucast; | |
2404 | } else { | |
2405 | list_add(&handler_ucast->list, &handler->list); | |
2406 | } | |
2407 | } | |
2408 | ||
2409 | return handler; | |
2410 | } | |
2411 | ||
cc0e5d42 MG |
2412 | static struct mlx5_ib_flow_handler *create_sniffer_rule(struct mlx5_ib_dev *dev, |
2413 | struct mlx5_ib_flow_prio *ft_rx, | |
2414 | struct mlx5_ib_flow_prio *ft_tx, | |
2415 | struct mlx5_flow_destination *dst) | |
2416 | { | |
2417 | struct mlx5_ib_flow_handler *handler_rx; | |
2418 | struct mlx5_ib_flow_handler *handler_tx; | |
2419 | int err; | |
2420 | static const struct ib_flow_attr flow_attr = { | |
2421 | .num_of_specs = 0, | |
2422 | .size = sizeof(flow_attr) | |
2423 | }; | |
2424 | ||
2425 | handler_rx = create_flow_rule(dev, ft_rx, &flow_attr, dst); | |
2426 | if (IS_ERR(handler_rx)) { | |
2427 | err = PTR_ERR(handler_rx); | |
2428 | goto err; | |
2429 | } | |
2430 | ||
2431 | handler_tx = create_flow_rule(dev, ft_tx, &flow_attr, dst); | |
2432 | if (IS_ERR(handler_tx)) { | |
2433 | err = PTR_ERR(handler_tx); | |
2434 | goto err_tx; | |
2435 | } | |
2436 | ||
2437 | list_add(&handler_tx->list, &handler_rx->list); | |
2438 | ||
2439 | return handler_rx; | |
2440 | ||
2441 | err_tx: | |
74491de9 | 2442 | mlx5_del_flow_rules(handler_rx->rule); |
cc0e5d42 MG |
2443 | ft_rx->refcount--; |
2444 | kfree(handler_rx); | |
2445 | err: | |
2446 | return ERR_PTR(err); | |
2447 | } | |
2448 | ||
038d2ef8 MG |
2449 | static struct ib_flow *mlx5_ib_create_flow(struct ib_qp *qp, |
2450 | struct ib_flow_attr *flow_attr, | |
2451 | int domain) | |
2452 | { | |
2453 | struct mlx5_ib_dev *dev = to_mdev(qp->device); | |
d9f88e5a | 2454 | struct mlx5_ib_qp *mqp = to_mqp(qp); |
038d2ef8 MG |
2455 | struct mlx5_ib_flow_handler *handler = NULL; |
2456 | struct mlx5_flow_destination *dst = NULL; | |
cc0e5d42 | 2457 | struct mlx5_ib_flow_prio *ft_prio_tx = NULL; |
038d2ef8 MG |
2458 | struct mlx5_ib_flow_prio *ft_prio; |
2459 | int err; | |
2460 | ||
2461 | if (flow_attr->priority > MLX5_IB_FLOW_LAST_PRIO) | |
dac388ef | 2462 | return ERR_PTR(-ENOMEM); |
038d2ef8 MG |
2463 | |
2464 | if (domain != IB_FLOW_DOMAIN_USER || | |
2465 | flow_attr->port > MLX5_CAP_GEN(dev->mdev, num_ports) || | |
35d19011 | 2466 | (flow_attr->flags & ~IB_FLOW_ATTR_FLAGS_DONT_TRAP)) |
038d2ef8 MG |
2467 | return ERR_PTR(-EINVAL); |
2468 | ||
2469 | dst = kzalloc(sizeof(*dst), GFP_KERNEL); | |
2470 | if (!dst) | |
2471 | return ERR_PTR(-ENOMEM); | |
2472 | ||
2473 | mutex_lock(&dev->flow_db.lock); | |
2474 | ||
cc0e5d42 | 2475 | ft_prio = get_flow_table(dev, flow_attr, MLX5_IB_FT_RX); |
038d2ef8 MG |
2476 | if (IS_ERR(ft_prio)) { |
2477 | err = PTR_ERR(ft_prio); | |
2478 | goto unlock; | |
2479 | } | |
cc0e5d42 MG |
2480 | if (flow_attr->type == IB_FLOW_ATTR_SNIFFER) { |
2481 | ft_prio_tx = get_flow_table(dev, flow_attr, MLX5_IB_FT_TX); | |
2482 | if (IS_ERR(ft_prio_tx)) { | |
2483 | err = PTR_ERR(ft_prio_tx); | |
2484 | ft_prio_tx = NULL; | |
2485 | goto destroy_ft; | |
2486 | } | |
2487 | } | |
038d2ef8 MG |
2488 | |
2489 | dst->type = MLX5_FLOW_DESTINATION_TYPE_TIR; | |
d9f88e5a YH |
2490 | if (mqp->flags & MLX5_IB_QP_RSS) |
2491 | dst->tir_num = mqp->rss_qp.tirn; | |
2492 | else | |
2493 | dst->tir_num = mqp->raw_packet_qp.rq.tirn; | |
038d2ef8 MG |
2494 | |
2495 | if (flow_attr->type == IB_FLOW_ATTR_NORMAL) { | |
35d19011 MG |
2496 | if (flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP) { |
2497 | handler = create_dont_trap_rule(dev, ft_prio, | |
2498 | flow_attr, dst); | |
2499 | } else { | |
2500 | handler = create_flow_rule(dev, ft_prio, flow_attr, | |
2501 | dst); | |
2502 | } | |
038d2ef8 MG |
2503 | } else if (flow_attr->type == IB_FLOW_ATTR_ALL_DEFAULT || |
2504 | flow_attr->type == IB_FLOW_ATTR_MC_DEFAULT) { | |
2505 | handler = create_leftovers_rule(dev, ft_prio, flow_attr, | |
2506 | dst); | |
cc0e5d42 MG |
2507 | } else if (flow_attr->type == IB_FLOW_ATTR_SNIFFER) { |
2508 | handler = create_sniffer_rule(dev, ft_prio, ft_prio_tx, dst); | |
038d2ef8 MG |
2509 | } else { |
2510 | err = -EINVAL; | |
2511 | goto destroy_ft; | |
2512 | } | |
2513 | ||
2514 | if (IS_ERR(handler)) { | |
2515 | err = PTR_ERR(handler); | |
2516 | handler = NULL; | |
2517 | goto destroy_ft; | |
2518 | } | |
2519 | ||
038d2ef8 MG |
2520 | mutex_unlock(&dev->flow_db.lock); |
2521 | kfree(dst); | |
2522 | ||
2523 | return &handler->ibflow; | |
2524 | ||
2525 | destroy_ft: | |
2526 | put_flow_table(dev, ft_prio, false); | |
cc0e5d42 MG |
2527 | if (ft_prio_tx) |
2528 | put_flow_table(dev, ft_prio_tx, false); | |
038d2ef8 MG |
2529 | unlock: |
2530 | mutex_unlock(&dev->flow_db.lock); | |
2531 | kfree(dst); | |
2532 | kfree(handler); | |
2533 | return ERR_PTR(err); | |
2534 | } | |
2535 | ||
e126ba97 EC |
2536 | static int mlx5_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) |
2537 | { | |
2538 | struct mlx5_ib_dev *dev = to_mdev(ibqp->device); | |
2539 | int err; | |
2540 | ||
9603b61d | 2541 | err = mlx5_core_attach_mcg(dev->mdev, gid, ibqp->qp_num); |
e126ba97 EC |
2542 | if (err) |
2543 | mlx5_ib_warn(dev, "failed attaching QPN 0x%x, MGID %pI6\n", | |
2544 | ibqp->qp_num, gid->raw); | |
2545 | ||
2546 | return err; | |
2547 | } | |
2548 | ||
2549 | static int mlx5_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
2550 | { | |
2551 | struct mlx5_ib_dev *dev = to_mdev(ibqp->device); | |
2552 | int err; | |
2553 | ||
9603b61d | 2554 | err = mlx5_core_detach_mcg(dev->mdev, gid, ibqp->qp_num); |
e126ba97 EC |
2555 | if (err) |
2556 | mlx5_ib_warn(dev, "failed detaching QPN 0x%x, MGID %pI6\n", | |
2557 | ibqp->qp_num, gid->raw); | |
2558 | ||
2559 | return err; | |
2560 | } | |
2561 | ||
2562 | static int init_node_data(struct mlx5_ib_dev *dev) | |
2563 | { | |
1b5daf11 | 2564 | int err; |
e126ba97 | 2565 | |
1b5daf11 | 2566 | err = mlx5_query_node_desc(dev, dev->ib_dev.node_desc); |
e126ba97 | 2567 | if (err) |
1b5daf11 | 2568 | return err; |
e126ba97 | 2569 | |
1b5daf11 | 2570 | dev->mdev->rev_id = dev->mdev->pdev->revision; |
e126ba97 | 2571 | |
1b5daf11 | 2572 | return mlx5_query_node_guid(dev, &dev->ib_dev.node_guid); |
e126ba97 EC |
2573 | } |
2574 | ||
2575 | static ssize_t show_fw_pages(struct device *device, struct device_attribute *attr, | |
2576 | char *buf) | |
2577 | { | |
2578 | struct mlx5_ib_dev *dev = | |
2579 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
2580 | ||
9603b61d | 2581 | return sprintf(buf, "%d\n", dev->mdev->priv.fw_pages); |
e126ba97 EC |
2582 | } |
2583 | ||
2584 | static ssize_t show_reg_pages(struct device *device, | |
2585 | struct device_attribute *attr, char *buf) | |
2586 | { | |
2587 | struct mlx5_ib_dev *dev = | |
2588 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
2589 | ||
6aec21f6 | 2590 | return sprintf(buf, "%d\n", atomic_read(&dev->mdev->priv.reg_pages)); |
e126ba97 EC |
2591 | } |
2592 | ||
2593 | static ssize_t show_hca(struct device *device, struct device_attribute *attr, | |
2594 | char *buf) | |
2595 | { | |
2596 | struct mlx5_ib_dev *dev = | |
2597 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
9603b61d | 2598 | return sprintf(buf, "MT%d\n", dev->mdev->pdev->device); |
e126ba97 EC |
2599 | } |
2600 | ||
e126ba97 EC |
2601 | static ssize_t show_rev(struct device *device, struct device_attribute *attr, |
2602 | char *buf) | |
2603 | { | |
2604 | struct mlx5_ib_dev *dev = | |
2605 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
9603b61d | 2606 | return sprintf(buf, "%x\n", dev->mdev->rev_id); |
e126ba97 EC |
2607 | } |
2608 | ||
2609 | static ssize_t show_board(struct device *device, struct device_attribute *attr, | |
2610 | char *buf) | |
2611 | { | |
2612 | struct mlx5_ib_dev *dev = | |
2613 | container_of(device, struct mlx5_ib_dev, ib_dev.dev); | |
2614 | return sprintf(buf, "%.*s\n", MLX5_BOARD_ID_LEN, | |
9603b61d | 2615 | dev->mdev->board_id); |
e126ba97 EC |
2616 | } |
2617 | ||
2618 | static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); | |
e126ba97 EC |
2619 | static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); |
2620 | static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); | |
2621 | static DEVICE_ATTR(fw_pages, S_IRUGO, show_fw_pages, NULL); | |
2622 | static DEVICE_ATTR(reg_pages, S_IRUGO, show_reg_pages, NULL); | |
2623 | ||
2624 | static struct device_attribute *mlx5_class_attributes[] = { | |
2625 | &dev_attr_hw_rev, | |
e126ba97 EC |
2626 | &dev_attr_hca_type, |
2627 | &dev_attr_board_id, | |
2628 | &dev_attr_fw_pages, | |
2629 | &dev_attr_reg_pages, | |
2630 | }; | |
2631 | ||
7722f47e HE |
2632 | static void pkey_change_handler(struct work_struct *work) |
2633 | { | |
2634 | struct mlx5_ib_port_resources *ports = | |
2635 | container_of(work, struct mlx5_ib_port_resources, | |
2636 | pkey_change_work); | |
2637 | ||
2638 | mutex_lock(&ports->devr->mutex); | |
2639 | mlx5_ib_gsi_pkey_change(ports->gsi); | |
2640 | mutex_unlock(&ports->devr->mutex); | |
2641 | } | |
2642 | ||
89ea94a7 MG |
2643 | static void mlx5_ib_handle_internal_error(struct mlx5_ib_dev *ibdev) |
2644 | { | |
2645 | struct mlx5_ib_qp *mqp; | |
2646 | struct mlx5_ib_cq *send_mcq, *recv_mcq; | |
2647 | struct mlx5_core_cq *mcq; | |
2648 | struct list_head cq_armed_list; | |
2649 | unsigned long flags_qp; | |
2650 | unsigned long flags_cq; | |
2651 | unsigned long flags; | |
2652 | ||
2653 | INIT_LIST_HEAD(&cq_armed_list); | |
2654 | ||
2655 | /* Go over qp list reside on that ibdev, sync with create/destroy qp.*/ | |
2656 | spin_lock_irqsave(&ibdev->reset_flow_resource_lock, flags); | |
2657 | list_for_each_entry(mqp, &ibdev->qp_list, qps_list) { | |
2658 | spin_lock_irqsave(&mqp->sq.lock, flags_qp); | |
2659 | if (mqp->sq.tail != mqp->sq.head) { | |
2660 | send_mcq = to_mcq(mqp->ibqp.send_cq); | |
2661 | spin_lock_irqsave(&send_mcq->lock, flags_cq); | |
2662 | if (send_mcq->mcq.comp && | |
2663 | mqp->ibqp.send_cq->comp_handler) { | |
2664 | if (!send_mcq->mcq.reset_notify_added) { | |
2665 | send_mcq->mcq.reset_notify_added = 1; | |
2666 | list_add_tail(&send_mcq->mcq.reset_notify, | |
2667 | &cq_armed_list); | |
2668 | } | |
2669 | } | |
2670 | spin_unlock_irqrestore(&send_mcq->lock, flags_cq); | |
2671 | } | |
2672 | spin_unlock_irqrestore(&mqp->sq.lock, flags_qp); | |
2673 | spin_lock_irqsave(&mqp->rq.lock, flags_qp); | |
2674 | /* no handling is needed for SRQ */ | |
2675 | if (!mqp->ibqp.srq) { | |
2676 | if (mqp->rq.tail != mqp->rq.head) { | |
2677 | recv_mcq = to_mcq(mqp->ibqp.recv_cq); | |
2678 | spin_lock_irqsave(&recv_mcq->lock, flags_cq); | |
2679 | if (recv_mcq->mcq.comp && | |
2680 | mqp->ibqp.recv_cq->comp_handler) { | |
2681 | if (!recv_mcq->mcq.reset_notify_added) { | |
2682 | recv_mcq->mcq.reset_notify_added = 1; | |
2683 | list_add_tail(&recv_mcq->mcq.reset_notify, | |
2684 | &cq_armed_list); | |
2685 | } | |
2686 | } | |
2687 | spin_unlock_irqrestore(&recv_mcq->lock, | |
2688 | flags_cq); | |
2689 | } | |
2690 | } | |
2691 | spin_unlock_irqrestore(&mqp->rq.lock, flags_qp); | |
2692 | } | |
2693 | /*At that point all inflight post send were put to be executed as of we | |
2694 | * lock/unlock above locks Now need to arm all involved CQs. | |
2695 | */ | |
2696 | list_for_each_entry(mcq, &cq_armed_list, reset_notify) { | |
2697 | mcq->comp(mcq); | |
2698 | } | |
2699 | spin_unlock_irqrestore(&ibdev->reset_flow_resource_lock, flags); | |
2700 | } | |
2701 | ||
9603b61d | 2702 | static void mlx5_ib_event(struct mlx5_core_dev *dev, void *context, |
4d2f9bbb | 2703 | enum mlx5_dev_event event, unsigned long param) |
e126ba97 | 2704 | { |
9603b61d | 2705 | struct mlx5_ib_dev *ibdev = (struct mlx5_ib_dev *)context; |
e126ba97 | 2706 | struct ib_event ibev; |
dbaaff2a | 2707 | bool fatal = false; |
e126ba97 EC |
2708 | u8 port = 0; |
2709 | ||
2710 | switch (event) { | |
2711 | case MLX5_DEV_EVENT_SYS_ERROR: | |
e126ba97 | 2712 | ibev.event = IB_EVENT_DEVICE_FATAL; |
89ea94a7 | 2713 | mlx5_ib_handle_internal_error(ibdev); |
dbaaff2a | 2714 | fatal = true; |
e126ba97 EC |
2715 | break; |
2716 | ||
2717 | case MLX5_DEV_EVENT_PORT_UP: | |
e126ba97 | 2718 | case MLX5_DEV_EVENT_PORT_DOWN: |
2788cf3b | 2719 | case MLX5_DEV_EVENT_PORT_INITIALIZED: |
4d2f9bbb | 2720 | port = (u8)param; |
5ec8c83e AH |
2721 | |
2722 | /* In RoCE, port up/down events are handled in | |
2723 | * mlx5_netdev_event(). | |
2724 | */ | |
2725 | if (mlx5_ib_port_link_layer(&ibdev->ib_dev, port) == | |
2726 | IB_LINK_LAYER_ETHERNET) | |
2727 | return; | |
2728 | ||
2729 | ibev.event = (event == MLX5_DEV_EVENT_PORT_UP) ? | |
2730 | IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR; | |
e126ba97 EC |
2731 | break; |
2732 | ||
e126ba97 EC |
2733 | case MLX5_DEV_EVENT_LID_CHANGE: |
2734 | ibev.event = IB_EVENT_LID_CHANGE; | |
4d2f9bbb | 2735 | port = (u8)param; |
e126ba97 EC |
2736 | break; |
2737 | ||
2738 | case MLX5_DEV_EVENT_PKEY_CHANGE: | |
2739 | ibev.event = IB_EVENT_PKEY_CHANGE; | |
4d2f9bbb | 2740 | port = (u8)param; |
7722f47e HE |
2741 | |
2742 | schedule_work(&ibdev->devr.ports[port - 1].pkey_change_work); | |
e126ba97 EC |
2743 | break; |
2744 | ||
2745 | case MLX5_DEV_EVENT_GUID_CHANGE: | |
2746 | ibev.event = IB_EVENT_GID_CHANGE; | |
4d2f9bbb | 2747 | port = (u8)param; |
e126ba97 EC |
2748 | break; |
2749 | ||
2750 | case MLX5_DEV_EVENT_CLIENT_REREG: | |
2751 | ibev.event = IB_EVENT_CLIENT_REREGISTER; | |
4d2f9bbb | 2752 | port = (u8)param; |
e126ba97 | 2753 | break; |
bdc37924 SM |
2754 | default: |
2755 | return; | |
e126ba97 EC |
2756 | } |
2757 | ||
2758 | ibev.device = &ibdev->ib_dev; | |
2759 | ibev.element.port_num = port; | |
2760 | ||
a0c84c32 EC |
2761 | if (port < 1 || port > ibdev->num_ports) { |
2762 | mlx5_ib_warn(ibdev, "warning: event on port %d\n", port); | |
2763 | return; | |
2764 | } | |
2765 | ||
e126ba97 EC |
2766 | if (ibdev->ib_active) |
2767 | ib_dispatch_event(&ibev); | |
dbaaff2a EC |
2768 | |
2769 | if (fatal) | |
2770 | ibdev->ib_active = false; | |
e126ba97 EC |
2771 | } |
2772 | ||
c43f1112 MG |
2773 | static int set_has_smi_cap(struct mlx5_ib_dev *dev) |
2774 | { | |
2775 | struct mlx5_hca_vport_context vport_ctx; | |
2776 | int err; | |
2777 | int port; | |
2778 | ||
2779 | for (port = 1; port <= MLX5_CAP_GEN(dev->mdev, num_ports); port++) { | |
2780 | dev->mdev->port_caps[port - 1].has_smi = false; | |
2781 | if (MLX5_CAP_GEN(dev->mdev, port_type) == | |
2782 | MLX5_CAP_PORT_TYPE_IB) { | |
2783 | if (MLX5_CAP_GEN(dev->mdev, ib_virt)) { | |
2784 | err = mlx5_query_hca_vport_context(dev->mdev, 0, | |
2785 | port, 0, | |
2786 | &vport_ctx); | |
2787 | if (err) { | |
2788 | mlx5_ib_err(dev, "query_hca_vport_context for port=%d failed %d\n", | |
2789 | port, err); | |
2790 | return err; | |
2791 | } | |
2792 | dev->mdev->port_caps[port - 1].has_smi = | |
2793 | vport_ctx.has_smi; | |
2794 | } else { | |
2795 | dev->mdev->port_caps[port - 1].has_smi = true; | |
2796 | } | |
2797 | } | |
2798 | } | |
2799 | return 0; | |
2800 | } | |
2801 | ||
e126ba97 EC |
2802 | static void get_ext_port_caps(struct mlx5_ib_dev *dev) |
2803 | { | |
2804 | int port; | |
2805 | ||
938fe83c | 2806 | for (port = 1; port <= MLX5_CAP_GEN(dev->mdev, num_ports); port++) |
e126ba97 EC |
2807 | mlx5_query_ext_port_caps(dev, port); |
2808 | } | |
2809 | ||
2810 | static int get_port_caps(struct mlx5_ib_dev *dev) | |
2811 | { | |
2812 | struct ib_device_attr *dprops = NULL; | |
2813 | struct ib_port_attr *pprops = NULL; | |
f614fc15 | 2814 | int err = -ENOMEM; |
e126ba97 | 2815 | int port; |
2528e33e | 2816 | struct ib_udata uhw = {.inlen = 0, .outlen = 0}; |
e126ba97 EC |
2817 | |
2818 | pprops = kmalloc(sizeof(*pprops), GFP_KERNEL); | |
2819 | if (!pprops) | |
2820 | goto out; | |
2821 | ||
2822 | dprops = kmalloc(sizeof(*dprops), GFP_KERNEL); | |
2823 | if (!dprops) | |
2824 | goto out; | |
2825 | ||
c43f1112 MG |
2826 | err = set_has_smi_cap(dev); |
2827 | if (err) | |
2828 | goto out; | |
2829 | ||
2528e33e | 2830 | err = mlx5_ib_query_device(&dev->ib_dev, dprops, &uhw); |
e126ba97 EC |
2831 | if (err) { |
2832 | mlx5_ib_warn(dev, "query_device failed %d\n", err); | |
2833 | goto out; | |
2834 | } | |
2835 | ||
938fe83c | 2836 | for (port = 1; port <= MLX5_CAP_GEN(dev->mdev, num_ports); port++) { |
c4550c63 | 2837 | memset(pprops, 0, sizeof(*pprops)); |
e126ba97 EC |
2838 | err = mlx5_ib_query_port(&dev->ib_dev, port, pprops); |
2839 | if (err) { | |
938fe83c SM |
2840 | mlx5_ib_warn(dev, "query_port %d failed %d\n", |
2841 | port, err); | |
e126ba97 EC |
2842 | break; |
2843 | } | |
938fe83c SM |
2844 | dev->mdev->port_caps[port - 1].pkey_table_len = |
2845 | dprops->max_pkeys; | |
2846 | dev->mdev->port_caps[port - 1].gid_table_len = | |
2847 | pprops->gid_tbl_len; | |
e126ba97 EC |
2848 | mlx5_ib_dbg(dev, "pkey_table_len %d, gid_table_len %d\n", |
2849 | dprops->max_pkeys, pprops->gid_tbl_len); | |
2850 | } | |
2851 | ||
2852 | out: | |
2853 | kfree(pprops); | |
2854 | kfree(dprops); | |
2855 | ||
2856 | return err; | |
2857 | } | |
2858 | ||
2859 | static void destroy_umrc_res(struct mlx5_ib_dev *dev) | |
2860 | { | |
2861 | int err; | |
2862 | ||
2863 | err = mlx5_mr_cache_cleanup(dev); | |
2864 | if (err) | |
2865 | mlx5_ib_warn(dev, "mr cache cleanup failed\n"); | |
2866 | ||
2867 | mlx5_ib_destroy_qp(dev->umrc.qp); | |
add08d76 | 2868 | ib_free_cq(dev->umrc.cq); |
e126ba97 EC |
2869 | ib_dealloc_pd(dev->umrc.pd); |
2870 | } | |
2871 | ||
2872 | enum { | |
2873 | MAX_UMR_WR = 128, | |
2874 | }; | |
2875 | ||
2876 | static int create_umr_res(struct mlx5_ib_dev *dev) | |
2877 | { | |
2878 | struct ib_qp_init_attr *init_attr = NULL; | |
2879 | struct ib_qp_attr *attr = NULL; | |
2880 | struct ib_pd *pd; | |
2881 | struct ib_cq *cq; | |
2882 | struct ib_qp *qp; | |
e126ba97 EC |
2883 | int ret; |
2884 | ||
2885 | attr = kzalloc(sizeof(*attr), GFP_KERNEL); | |
2886 | init_attr = kzalloc(sizeof(*init_attr), GFP_KERNEL); | |
2887 | if (!attr || !init_attr) { | |
2888 | ret = -ENOMEM; | |
2889 | goto error_0; | |
2890 | } | |
2891 | ||
ed082d36 | 2892 | pd = ib_alloc_pd(&dev->ib_dev, 0); |
e126ba97 EC |
2893 | if (IS_ERR(pd)) { |
2894 | mlx5_ib_dbg(dev, "Couldn't create PD for sync UMR QP\n"); | |
2895 | ret = PTR_ERR(pd); | |
2896 | goto error_0; | |
2897 | } | |
2898 | ||
add08d76 | 2899 | cq = ib_alloc_cq(&dev->ib_dev, NULL, 128, 0, IB_POLL_SOFTIRQ); |
e126ba97 EC |
2900 | if (IS_ERR(cq)) { |
2901 | mlx5_ib_dbg(dev, "Couldn't create CQ for sync UMR QP\n"); | |
2902 | ret = PTR_ERR(cq); | |
2903 | goto error_2; | |
2904 | } | |
e126ba97 EC |
2905 | |
2906 | init_attr->send_cq = cq; | |
2907 | init_attr->recv_cq = cq; | |
2908 | init_attr->sq_sig_type = IB_SIGNAL_ALL_WR; | |
2909 | init_attr->cap.max_send_wr = MAX_UMR_WR; | |
2910 | init_attr->cap.max_send_sge = 1; | |
2911 | init_attr->qp_type = MLX5_IB_QPT_REG_UMR; | |
2912 | init_attr->port_num = 1; | |
2913 | qp = mlx5_ib_create_qp(pd, init_attr, NULL); | |
2914 | if (IS_ERR(qp)) { | |
2915 | mlx5_ib_dbg(dev, "Couldn't create sync UMR QP\n"); | |
2916 | ret = PTR_ERR(qp); | |
2917 | goto error_3; | |
2918 | } | |
2919 | qp->device = &dev->ib_dev; | |
2920 | qp->real_qp = qp; | |
2921 | qp->uobject = NULL; | |
2922 | qp->qp_type = MLX5_IB_QPT_REG_UMR; | |
2923 | ||
2924 | attr->qp_state = IB_QPS_INIT; | |
2925 | attr->port_num = 1; | |
2926 | ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE | IB_QP_PKEY_INDEX | | |
2927 | IB_QP_PORT, NULL); | |
2928 | if (ret) { | |
2929 | mlx5_ib_dbg(dev, "Couldn't modify UMR QP\n"); | |
2930 | goto error_4; | |
2931 | } | |
2932 | ||
2933 | memset(attr, 0, sizeof(*attr)); | |
2934 | attr->qp_state = IB_QPS_RTR; | |
2935 | attr->path_mtu = IB_MTU_256; | |
2936 | ||
2937 | ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE, NULL); | |
2938 | if (ret) { | |
2939 | mlx5_ib_dbg(dev, "Couldn't modify umr QP to rtr\n"); | |
2940 | goto error_4; | |
2941 | } | |
2942 | ||
2943 | memset(attr, 0, sizeof(*attr)); | |
2944 | attr->qp_state = IB_QPS_RTS; | |
2945 | ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE, NULL); | |
2946 | if (ret) { | |
2947 | mlx5_ib_dbg(dev, "Couldn't modify umr QP to rts\n"); | |
2948 | goto error_4; | |
2949 | } | |
2950 | ||
2951 | dev->umrc.qp = qp; | |
2952 | dev->umrc.cq = cq; | |
e126ba97 EC |
2953 | dev->umrc.pd = pd; |
2954 | ||
2955 | sema_init(&dev->umrc.sem, MAX_UMR_WR); | |
2956 | ret = mlx5_mr_cache_init(dev); | |
2957 | if (ret) { | |
2958 | mlx5_ib_warn(dev, "mr cache init failed %d\n", ret); | |
2959 | goto error_4; | |
2960 | } | |
2961 | ||
2962 | kfree(attr); | |
2963 | kfree(init_attr); | |
2964 | ||
2965 | return 0; | |
2966 | ||
2967 | error_4: | |
2968 | mlx5_ib_destroy_qp(qp); | |
2969 | ||
2970 | error_3: | |
add08d76 | 2971 | ib_free_cq(cq); |
e126ba97 EC |
2972 | |
2973 | error_2: | |
e126ba97 EC |
2974 | ib_dealloc_pd(pd); |
2975 | ||
2976 | error_0: | |
2977 | kfree(attr); | |
2978 | kfree(init_attr); | |
2979 | return ret; | |
2980 | } | |
2981 | ||
2982 | static int create_dev_resources(struct mlx5_ib_resources *devr) | |
2983 | { | |
2984 | struct ib_srq_init_attr attr; | |
2985 | struct mlx5_ib_dev *dev; | |
bcf4c1ea | 2986 | struct ib_cq_init_attr cq_attr = {.cqe = 1}; |
7722f47e | 2987 | int port; |
e126ba97 EC |
2988 | int ret = 0; |
2989 | ||
2990 | dev = container_of(devr, struct mlx5_ib_dev, devr); | |
2991 | ||
d16e91da HE |
2992 | mutex_init(&devr->mutex); |
2993 | ||
e126ba97 EC |
2994 | devr->p0 = mlx5_ib_alloc_pd(&dev->ib_dev, NULL, NULL); |
2995 | if (IS_ERR(devr->p0)) { | |
2996 | ret = PTR_ERR(devr->p0); | |
2997 | goto error0; | |
2998 | } | |
2999 | devr->p0->device = &dev->ib_dev; | |
3000 | devr->p0->uobject = NULL; | |
3001 | atomic_set(&devr->p0->usecnt, 0); | |
3002 | ||
bcf4c1ea | 3003 | devr->c0 = mlx5_ib_create_cq(&dev->ib_dev, &cq_attr, NULL, NULL); |
e126ba97 EC |
3004 | if (IS_ERR(devr->c0)) { |
3005 | ret = PTR_ERR(devr->c0); | |
3006 | goto error1; | |
3007 | } | |
3008 | devr->c0->device = &dev->ib_dev; | |
3009 | devr->c0->uobject = NULL; | |
3010 | devr->c0->comp_handler = NULL; | |
3011 | devr->c0->event_handler = NULL; | |
3012 | devr->c0->cq_context = NULL; | |
3013 | atomic_set(&devr->c0->usecnt, 0); | |
3014 | ||
3015 | devr->x0 = mlx5_ib_alloc_xrcd(&dev->ib_dev, NULL, NULL); | |
3016 | if (IS_ERR(devr->x0)) { | |
3017 | ret = PTR_ERR(devr->x0); | |
3018 | goto error2; | |
3019 | } | |
3020 | devr->x0->device = &dev->ib_dev; | |
3021 | devr->x0->inode = NULL; | |
3022 | atomic_set(&devr->x0->usecnt, 0); | |
3023 | mutex_init(&devr->x0->tgt_qp_mutex); | |
3024 | INIT_LIST_HEAD(&devr->x0->tgt_qp_list); | |
3025 | ||
3026 | devr->x1 = mlx5_ib_alloc_xrcd(&dev->ib_dev, NULL, NULL); | |
3027 | if (IS_ERR(devr->x1)) { | |
3028 | ret = PTR_ERR(devr->x1); | |
3029 | goto error3; | |
3030 | } | |
3031 | devr->x1->device = &dev->ib_dev; | |
3032 | devr->x1->inode = NULL; | |
3033 | atomic_set(&devr->x1->usecnt, 0); | |
3034 | mutex_init(&devr->x1->tgt_qp_mutex); | |
3035 | INIT_LIST_HEAD(&devr->x1->tgt_qp_list); | |
3036 | ||
3037 | memset(&attr, 0, sizeof(attr)); | |
3038 | attr.attr.max_sge = 1; | |
3039 | attr.attr.max_wr = 1; | |
3040 | attr.srq_type = IB_SRQT_XRC; | |
3041 | attr.ext.xrc.cq = devr->c0; | |
3042 | attr.ext.xrc.xrcd = devr->x0; | |
3043 | ||
3044 | devr->s0 = mlx5_ib_create_srq(devr->p0, &attr, NULL); | |
3045 | if (IS_ERR(devr->s0)) { | |
3046 | ret = PTR_ERR(devr->s0); | |
3047 | goto error4; | |
3048 | } | |
3049 | devr->s0->device = &dev->ib_dev; | |
3050 | devr->s0->pd = devr->p0; | |
3051 | devr->s0->uobject = NULL; | |
3052 | devr->s0->event_handler = NULL; | |
3053 | devr->s0->srq_context = NULL; | |
3054 | devr->s0->srq_type = IB_SRQT_XRC; | |
3055 | devr->s0->ext.xrc.xrcd = devr->x0; | |
3056 | devr->s0->ext.xrc.cq = devr->c0; | |
3057 | atomic_inc(&devr->s0->ext.xrc.xrcd->usecnt); | |
3058 | atomic_inc(&devr->s0->ext.xrc.cq->usecnt); | |
3059 | atomic_inc(&devr->p0->usecnt); | |
3060 | atomic_set(&devr->s0->usecnt, 0); | |
3061 | ||
4aa17b28 HA |
3062 | memset(&attr, 0, sizeof(attr)); |
3063 | attr.attr.max_sge = 1; | |
3064 | attr.attr.max_wr = 1; | |
3065 | attr.srq_type = IB_SRQT_BASIC; | |
3066 | devr->s1 = mlx5_ib_create_srq(devr->p0, &attr, NULL); | |
3067 | if (IS_ERR(devr->s1)) { | |
3068 | ret = PTR_ERR(devr->s1); | |
3069 | goto error5; | |
3070 | } | |
3071 | devr->s1->device = &dev->ib_dev; | |
3072 | devr->s1->pd = devr->p0; | |
3073 | devr->s1->uobject = NULL; | |
3074 | devr->s1->event_handler = NULL; | |
3075 | devr->s1->srq_context = NULL; | |
3076 | devr->s1->srq_type = IB_SRQT_BASIC; | |
3077 | devr->s1->ext.xrc.cq = devr->c0; | |
3078 | atomic_inc(&devr->p0->usecnt); | |
3079 | atomic_set(&devr->s0->usecnt, 0); | |
3080 | ||
7722f47e HE |
3081 | for (port = 0; port < ARRAY_SIZE(devr->ports); ++port) { |
3082 | INIT_WORK(&devr->ports[port].pkey_change_work, | |
3083 | pkey_change_handler); | |
3084 | devr->ports[port].devr = devr; | |
3085 | } | |
3086 | ||
e126ba97 EC |
3087 | return 0; |
3088 | ||
4aa17b28 HA |
3089 | error5: |
3090 | mlx5_ib_destroy_srq(devr->s0); | |
e126ba97 EC |
3091 | error4: |
3092 | mlx5_ib_dealloc_xrcd(devr->x1); | |
3093 | error3: | |
3094 | mlx5_ib_dealloc_xrcd(devr->x0); | |
3095 | error2: | |
3096 | mlx5_ib_destroy_cq(devr->c0); | |
3097 | error1: | |
3098 | mlx5_ib_dealloc_pd(devr->p0); | |
3099 | error0: | |
3100 | return ret; | |
3101 | } | |
3102 | ||
3103 | static void destroy_dev_resources(struct mlx5_ib_resources *devr) | |
3104 | { | |
7722f47e HE |
3105 | struct mlx5_ib_dev *dev = |
3106 | container_of(devr, struct mlx5_ib_dev, devr); | |
3107 | int port; | |
3108 | ||
4aa17b28 | 3109 | mlx5_ib_destroy_srq(devr->s1); |
e126ba97 EC |
3110 | mlx5_ib_destroy_srq(devr->s0); |
3111 | mlx5_ib_dealloc_xrcd(devr->x0); | |
3112 | mlx5_ib_dealloc_xrcd(devr->x1); | |
3113 | mlx5_ib_destroy_cq(devr->c0); | |
3114 | mlx5_ib_dealloc_pd(devr->p0); | |
7722f47e HE |
3115 | |
3116 | /* Make sure no change P_Key work items are still executing */ | |
3117 | for (port = 0; port < dev->num_ports; ++port) | |
3118 | cancel_work_sync(&devr->ports[port].pkey_change_work); | |
e126ba97 EC |
3119 | } |
3120 | ||
e53505a8 AS |
3121 | static u32 get_core_cap_flags(struct ib_device *ibdev) |
3122 | { | |
3123 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
3124 | enum rdma_link_layer ll = mlx5_ib_port_link_layer(ibdev, 1); | |
3125 | u8 l3_type_cap = MLX5_CAP_ROCE(dev->mdev, l3_type); | |
3126 | u8 roce_version_cap = MLX5_CAP_ROCE(dev->mdev, roce_version); | |
3127 | u32 ret = 0; | |
3128 | ||
3129 | if (ll == IB_LINK_LAYER_INFINIBAND) | |
3130 | return RDMA_CORE_PORT_IBA_IB; | |
3131 | ||
72cd5717 OG |
3132 | ret = RDMA_CORE_PORT_RAW_PACKET; |
3133 | ||
e53505a8 | 3134 | if (!(l3_type_cap & MLX5_ROCE_L3_TYPE_IPV4_CAP)) |
72cd5717 | 3135 | return ret; |
e53505a8 AS |
3136 | |
3137 | if (!(l3_type_cap & MLX5_ROCE_L3_TYPE_IPV6_CAP)) | |
72cd5717 | 3138 | return ret; |
e53505a8 AS |
3139 | |
3140 | if (roce_version_cap & MLX5_ROCE_VERSION_1_CAP) | |
3141 | ret |= RDMA_CORE_PORT_IBA_ROCE; | |
3142 | ||
3143 | if (roce_version_cap & MLX5_ROCE_VERSION_2_CAP) | |
3144 | ret |= RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP; | |
3145 | ||
3146 | return ret; | |
3147 | } | |
3148 | ||
7738613e IW |
3149 | static int mlx5_port_immutable(struct ib_device *ibdev, u8 port_num, |
3150 | struct ib_port_immutable *immutable) | |
3151 | { | |
3152 | struct ib_port_attr attr; | |
ca5b91d6 OG |
3153 | struct mlx5_ib_dev *dev = to_mdev(ibdev); |
3154 | enum rdma_link_layer ll = mlx5_ib_port_link_layer(ibdev, port_num); | |
7738613e IW |
3155 | int err; |
3156 | ||
c4550c63 OG |
3157 | immutable->core_cap_flags = get_core_cap_flags(ibdev); |
3158 | ||
3159 | err = ib_query_port(ibdev, port_num, &attr); | |
7738613e IW |
3160 | if (err) |
3161 | return err; | |
3162 | ||
3163 | immutable->pkey_tbl_len = attr.pkey_tbl_len; | |
3164 | immutable->gid_tbl_len = attr.gid_tbl_len; | |
e53505a8 | 3165 | immutable->core_cap_flags = get_core_cap_flags(ibdev); |
ca5b91d6 OG |
3166 | if ((ll == IB_LINK_LAYER_INFINIBAND) || MLX5_CAP_GEN(dev->mdev, roce)) |
3167 | immutable->max_mad_size = IB_MGMT_MAD_SIZE; | |
7738613e IW |
3168 | |
3169 | return 0; | |
3170 | } | |
3171 | ||
c7342823 IW |
3172 | static void get_dev_fw_str(struct ib_device *ibdev, char *str, |
3173 | size_t str_len) | |
3174 | { | |
3175 | struct mlx5_ib_dev *dev = | |
3176 | container_of(ibdev, struct mlx5_ib_dev, ib_dev); | |
3177 | snprintf(str, str_len, "%d.%d.%04d", fw_rev_maj(dev->mdev), | |
3178 | fw_rev_min(dev->mdev), fw_rev_sub(dev->mdev)); | |
3179 | } | |
3180 | ||
45f95acd | 3181 | static int mlx5_eth_lag_init(struct mlx5_ib_dev *dev) |
9ef9c640 AH |
3182 | { |
3183 | struct mlx5_core_dev *mdev = dev->mdev; | |
3184 | struct mlx5_flow_namespace *ns = mlx5_get_flow_namespace(mdev, | |
3185 | MLX5_FLOW_NAMESPACE_LAG); | |
3186 | struct mlx5_flow_table *ft; | |
3187 | int err; | |
3188 | ||
3189 | if (!ns || !mlx5_lag_is_active(mdev)) | |
3190 | return 0; | |
3191 | ||
3192 | err = mlx5_cmd_create_vport_lag(mdev); | |
3193 | if (err) | |
3194 | return err; | |
3195 | ||
3196 | ft = mlx5_create_lag_demux_flow_table(ns, 0, 0); | |
3197 | if (IS_ERR(ft)) { | |
3198 | err = PTR_ERR(ft); | |
3199 | goto err_destroy_vport_lag; | |
3200 | } | |
3201 | ||
3202 | dev->flow_db.lag_demux_ft = ft; | |
3203 | return 0; | |
3204 | ||
3205 | err_destroy_vport_lag: | |
3206 | mlx5_cmd_destroy_vport_lag(mdev); | |
3207 | return err; | |
3208 | } | |
3209 | ||
45f95acd | 3210 | static void mlx5_eth_lag_cleanup(struct mlx5_ib_dev *dev) |
9ef9c640 AH |
3211 | { |
3212 | struct mlx5_core_dev *mdev = dev->mdev; | |
3213 | ||
3214 | if (dev->flow_db.lag_demux_ft) { | |
3215 | mlx5_destroy_flow_table(dev->flow_db.lag_demux_ft); | |
3216 | dev->flow_db.lag_demux_ft = NULL; | |
3217 | ||
3218 | mlx5_cmd_destroy_vport_lag(mdev); | |
3219 | } | |
3220 | } | |
3221 | ||
d012f5d6 OG |
3222 | static int mlx5_add_netdev_notifier(struct mlx5_ib_dev *dev) |
3223 | { | |
3224 | int err; | |
3225 | ||
3226 | dev->roce.nb.notifier_call = mlx5_netdev_event; | |
3227 | err = register_netdevice_notifier(&dev->roce.nb); | |
3228 | if (err) { | |
3229 | dev->roce.nb.notifier_call = NULL; | |
3230 | return err; | |
3231 | } | |
3232 | ||
3233 | return 0; | |
3234 | } | |
3235 | ||
3236 | static void mlx5_remove_netdev_notifier(struct mlx5_ib_dev *dev) | |
5ec8c83e AH |
3237 | { |
3238 | if (dev->roce.nb.notifier_call) { | |
3239 | unregister_netdevice_notifier(&dev->roce.nb); | |
3240 | dev->roce.nb.notifier_call = NULL; | |
3241 | } | |
3242 | } | |
3243 | ||
45f95acd | 3244 | static int mlx5_enable_eth(struct mlx5_ib_dev *dev) |
fc24fc5e | 3245 | { |
e53505a8 AS |
3246 | int err; |
3247 | ||
d012f5d6 OG |
3248 | err = mlx5_add_netdev_notifier(dev); |
3249 | if (err) | |
e53505a8 AS |
3250 | return err; |
3251 | ||
ca5b91d6 OG |
3252 | if (MLX5_CAP_GEN(dev->mdev, roce)) { |
3253 | err = mlx5_nic_vport_enable_roce(dev->mdev); | |
3254 | if (err) | |
3255 | goto err_unregister_netdevice_notifier; | |
3256 | } | |
e53505a8 | 3257 | |
45f95acd | 3258 | err = mlx5_eth_lag_init(dev); |
9ef9c640 AH |
3259 | if (err) |
3260 | goto err_disable_roce; | |
3261 | ||
e53505a8 AS |
3262 | return 0; |
3263 | ||
9ef9c640 | 3264 | err_disable_roce: |
ca5b91d6 OG |
3265 | if (MLX5_CAP_GEN(dev->mdev, roce)) |
3266 | mlx5_nic_vport_disable_roce(dev->mdev); | |
9ef9c640 | 3267 | |
e53505a8 | 3268 | err_unregister_netdevice_notifier: |
d012f5d6 | 3269 | mlx5_remove_netdev_notifier(dev); |
e53505a8 | 3270 | return err; |
fc24fc5e AS |
3271 | } |
3272 | ||
45f95acd | 3273 | static void mlx5_disable_eth(struct mlx5_ib_dev *dev) |
fc24fc5e | 3274 | { |
45f95acd | 3275 | mlx5_eth_lag_cleanup(dev); |
ca5b91d6 OG |
3276 | if (MLX5_CAP_GEN(dev->mdev, roce)) |
3277 | mlx5_nic_vport_disable_roce(dev->mdev); | |
fc24fc5e AS |
3278 | } |
3279 | ||
e1f24a79 | 3280 | struct mlx5_ib_counter { |
7c16f477 KH |
3281 | const char *name; |
3282 | size_t offset; | |
3283 | }; | |
3284 | ||
3285 | #define INIT_Q_COUNTER(_name) \ | |
3286 | { .name = #_name, .offset = MLX5_BYTE_OFF(query_q_counter_out, _name)} | |
3287 | ||
e1f24a79 | 3288 | static const struct mlx5_ib_counter basic_q_cnts[] = { |
7c16f477 KH |
3289 | INIT_Q_COUNTER(rx_write_requests), |
3290 | INIT_Q_COUNTER(rx_read_requests), | |
3291 | INIT_Q_COUNTER(rx_atomic_requests), | |
3292 | INIT_Q_COUNTER(out_of_buffer), | |
3293 | }; | |
3294 | ||
e1f24a79 | 3295 | static const struct mlx5_ib_counter out_of_seq_q_cnts[] = { |
7c16f477 KH |
3296 | INIT_Q_COUNTER(out_of_sequence), |
3297 | }; | |
3298 | ||
e1f24a79 | 3299 | static const struct mlx5_ib_counter retrans_q_cnts[] = { |
7c16f477 KH |
3300 | INIT_Q_COUNTER(duplicate_request), |
3301 | INIT_Q_COUNTER(rnr_nak_retry_err), | |
3302 | INIT_Q_COUNTER(packet_seq_err), | |
3303 | INIT_Q_COUNTER(implied_nak_seq_err), | |
3304 | INIT_Q_COUNTER(local_ack_timeout_err), | |
3305 | }; | |
3306 | ||
e1f24a79 PP |
3307 | #define INIT_CONG_COUNTER(_name) \ |
3308 | { .name = #_name, .offset = \ | |
3309 | MLX5_BYTE_OFF(query_cong_statistics_out, _name ## _high)} | |
3310 | ||
3311 | static const struct mlx5_ib_counter cong_cnts[] = { | |
3312 | INIT_CONG_COUNTER(rp_cnp_ignored), | |
3313 | INIT_CONG_COUNTER(rp_cnp_handled), | |
3314 | INIT_CONG_COUNTER(np_ecn_marked_roce_packets), | |
3315 | INIT_CONG_COUNTER(np_cnp_sent), | |
3316 | }; | |
3317 | ||
3318 | static void mlx5_ib_dealloc_counters(struct mlx5_ib_dev *dev) | |
0837e86a MB |
3319 | { |
3320 | unsigned int i; | |
3321 | ||
7c16f477 | 3322 | for (i = 0; i < dev->num_ports; i++) { |
0837e86a | 3323 | mlx5_core_dealloc_q_counter(dev->mdev, |
e1f24a79 PP |
3324 | dev->port[i].cnts.set_id); |
3325 | kfree(dev->port[i].cnts.names); | |
3326 | kfree(dev->port[i].cnts.offsets); | |
7c16f477 KH |
3327 | } |
3328 | } | |
3329 | ||
e1f24a79 PP |
3330 | static int __mlx5_ib_alloc_counters(struct mlx5_ib_dev *dev, |
3331 | struct mlx5_ib_counters *cnts) | |
7c16f477 KH |
3332 | { |
3333 | u32 num_counters; | |
3334 | ||
3335 | num_counters = ARRAY_SIZE(basic_q_cnts); | |
3336 | ||
3337 | if (MLX5_CAP_GEN(dev->mdev, out_of_seq_cnt)) | |
3338 | num_counters += ARRAY_SIZE(out_of_seq_q_cnts); | |
3339 | ||
3340 | if (MLX5_CAP_GEN(dev->mdev, retransmission_q_counters)) | |
3341 | num_counters += ARRAY_SIZE(retrans_q_cnts); | |
e1f24a79 | 3342 | cnts->num_q_counters = num_counters; |
7c16f477 | 3343 | |
e1f24a79 PP |
3344 | if (MLX5_CAP_GEN(dev->mdev, cc_query_allowed)) { |
3345 | cnts->num_cong_counters = ARRAY_SIZE(cong_cnts); | |
3346 | num_counters += ARRAY_SIZE(cong_cnts); | |
3347 | } | |
3348 | ||
3349 | cnts->names = kcalloc(num_counters, sizeof(cnts->names), GFP_KERNEL); | |
3350 | if (!cnts->names) | |
7c16f477 KH |
3351 | return -ENOMEM; |
3352 | ||
e1f24a79 PP |
3353 | cnts->offsets = kcalloc(num_counters, |
3354 | sizeof(cnts->offsets), GFP_KERNEL); | |
3355 | if (!cnts->offsets) | |
7c16f477 KH |
3356 | goto err_names; |
3357 | ||
7c16f477 KH |
3358 | return 0; |
3359 | ||
3360 | err_names: | |
e1f24a79 | 3361 | kfree(cnts->names); |
7c16f477 KH |
3362 | return -ENOMEM; |
3363 | } | |
3364 | ||
e1f24a79 PP |
3365 | static void mlx5_ib_fill_counters(struct mlx5_ib_dev *dev, |
3366 | const char **names, | |
3367 | size_t *offsets) | |
7c16f477 KH |
3368 | { |
3369 | int i; | |
3370 | int j = 0; | |
3371 | ||
3372 | for (i = 0; i < ARRAY_SIZE(basic_q_cnts); i++, j++) { | |
3373 | names[j] = basic_q_cnts[i].name; | |
3374 | offsets[j] = basic_q_cnts[i].offset; | |
3375 | } | |
3376 | ||
3377 | if (MLX5_CAP_GEN(dev->mdev, out_of_seq_cnt)) { | |
3378 | for (i = 0; i < ARRAY_SIZE(out_of_seq_q_cnts); i++, j++) { | |
3379 | names[j] = out_of_seq_q_cnts[i].name; | |
3380 | offsets[j] = out_of_seq_q_cnts[i].offset; | |
3381 | } | |
3382 | } | |
3383 | ||
3384 | if (MLX5_CAP_GEN(dev->mdev, retransmission_q_counters)) { | |
3385 | for (i = 0; i < ARRAY_SIZE(retrans_q_cnts); i++, j++) { | |
3386 | names[j] = retrans_q_cnts[i].name; | |
3387 | offsets[j] = retrans_q_cnts[i].offset; | |
3388 | } | |
3389 | } | |
e1f24a79 PP |
3390 | |
3391 | if (MLX5_CAP_GEN(dev->mdev, cc_query_allowed)) { | |
3392 | for (i = 0; i < ARRAY_SIZE(cong_cnts); i++, j++) { | |
3393 | names[j] = cong_cnts[i].name; | |
3394 | offsets[j] = cong_cnts[i].offset; | |
3395 | } | |
3396 | } | |
0837e86a MB |
3397 | } |
3398 | ||
e1f24a79 | 3399 | static int mlx5_ib_alloc_counters(struct mlx5_ib_dev *dev) |
0837e86a MB |
3400 | { |
3401 | int i; | |
3402 | int ret; | |
3403 | ||
3404 | for (i = 0; i < dev->num_ports; i++) { | |
7c16f477 KH |
3405 | struct mlx5_ib_port *port = &dev->port[i]; |
3406 | ||
0837e86a | 3407 | ret = mlx5_core_alloc_q_counter(dev->mdev, |
e1f24a79 | 3408 | &port->cnts.set_id); |
0837e86a MB |
3409 | if (ret) { |
3410 | mlx5_ib_warn(dev, | |
3411 | "couldn't allocate queue counter for port %d, err %d\n", | |
3412 | i + 1, ret); | |
3413 | goto dealloc_counters; | |
3414 | } | |
7c16f477 | 3415 | |
e1f24a79 | 3416 | ret = __mlx5_ib_alloc_counters(dev, &port->cnts); |
7c16f477 KH |
3417 | if (ret) |
3418 | goto dealloc_counters; | |
3419 | ||
e1f24a79 PP |
3420 | mlx5_ib_fill_counters(dev, port->cnts.names, |
3421 | port->cnts.offsets); | |
0837e86a MB |
3422 | } |
3423 | ||
3424 | return 0; | |
3425 | ||
3426 | dealloc_counters: | |
3427 | while (--i >= 0) | |
3428 | mlx5_core_dealloc_q_counter(dev->mdev, | |
e1f24a79 | 3429 | dev->port[i].cnts.set_id); |
0837e86a MB |
3430 | |
3431 | return ret; | |
3432 | } | |
3433 | ||
0ad17a8f MB |
3434 | static struct rdma_hw_stats *mlx5_ib_alloc_hw_stats(struct ib_device *ibdev, |
3435 | u8 port_num) | |
3436 | { | |
7c16f477 KH |
3437 | struct mlx5_ib_dev *dev = to_mdev(ibdev); |
3438 | struct mlx5_ib_port *port = &dev->port[port_num - 1]; | |
0ad17a8f MB |
3439 | |
3440 | /* We support only per port stats */ | |
3441 | if (port_num == 0) | |
3442 | return NULL; | |
3443 | ||
e1f24a79 PP |
3444 | return rdma_alloc_hw_stats_struct(port->cnts.names, |
3445 | port->cnts.num_q_counters + | |
3446 | port->cnts.num_cong_counters, | |
0ad17a8f MB |
3447 | RDMA_HW_STATS_DEFAULT_LIFESPAN); |
3448 | } | |
3449 | ||
e1f24a79 PP |
3450 | static int mlx5_ib_query_q_counters(struct mlx5_ib_dev *dev, |
3451 | struct mlx5_ib_port *port, | |
3452 | struct rdma_hw_stats *stats) | |
0ad17a8f | 3453 | { |
0ad17a8f MB |
3454 | int outlen = MLX5_ST_SZ_BYTES(query_q_counter_out); |
3455 | void *out; | |
3456 | __be32 val; | |
e1f24a79 | 3457 | int ret, i; |
0ad17a8f MB |
3458 | |
3459 | out = mlx5_vzalloc(outlen); | |
3460 | if (!out) | |
3461 | return -ENOMEM; | |
3462 | ||
3463 | ret = mlx5_core_query_q_counter(dev->mdev, | |
e1f24a79 | 3464 | port->cnts.set_id, 0, |
0ad17a8f MB |
3465 | out, outlen); |
3466 | if (ret) | |
3467 | goto free; | |
3468 | ||
e1f24a79 PP |
3469 | for (i = 0; i < port->cnts.num_q_counters; i++) { |
3470 | val = *(__be32 *)(out + port->cnts.offsets[i]); | |
0ad17a8f MB |
3471 | stats->value[i] = (u64)be32_to_cpu(val); |
3472 | } | |
7c16f477 | 3473 | |
0ad17a8f MB |
3474 | free: |
3475 | kvfree(out); | |
e1f24a79 PP |
3476 | return ret; |
3477 | } | |
3478 | ||
3479 | static int mlx5_ib_query_cong_counters(struct mlx5_ib_dev *dev, | |
3480 | struct mlx5_ib_port *port, | |
3481 | struct rdma_hw_stats *stats) | |
3482 | { | |
3483 | int outlen = MLX5_ST_SZ_BYTES(query_cong_statistics_out); | |
3484 | void *out; | |
3485 | int ret, i; | |
3486 | int offset = port->cnts.num_q_counters; | |
3487 | ||
3488 | out = mlx5_vzalloc(outlen); | |
3489 | if (!out) | |
3490 | return -ENOMEM; | |
3491 | ||
3492 | ret = mlx5_cmd_query_cong_counter(dev->mdev, false, out, outlen); | |
3493 | if (ret) | |
3494 | goto free; | |
3495 | ||
3496 | for (i = 0; i < port->cnts.num_cong_counters; i++) { | |
3497 | stats->value[i + offset] = | |
3498 | be64_to_cpup((__be64 *)(out + | |
3499 | port->cnts.offsets[i + offset])); | |
3500 | } | |
3501 | ||
3502 | free: | |
3503 | kvfree(out); | |
3504 | return ret; | |
3505 | } | |
3506 | ||
3507 | static int mlx5_ib_get_hw_stats(struct ib_device *ibdev, | |
3508 | struct rdma_hw_stats *stats, | |
3509 | u8 port_num, int index) | |
3510 | { | |
3511 | struct mlx5_ib_dev *dev = to_mdev(ibdev); | |
3512 | struct mlx5_ib_port *port = &dev->port[port_num - 1]; | |
3513 | int ret, num_counters; | |
3514 | ||
3515 | if (!stats) | |
3516 | return -EINVAL; | |
3517 | ||
3518 | ret = mlx5_ib_query_q_counters(dev, port, stats); | |
3519 | if (ret) | |
3520 | return ret; | |
3521 | num_counters = port->cnts.num_q_counters; | |
3522 | ||
3523 | if (MLX5_CAP_GEN(dev->mdev, cc_query_allowed)) { | |
3524 | ret = mlx5_ib_query_cong_counters(dev, port, stats); | |
3525 | if (ret) | |
3526 | return ret; | |
3527 | num_counters += port->cnts.num_cong_counters; | |
3528 | } | |
3529 | ||
3530 | return num_counters; | |
0ad17a8f MB |
3531 | } |
3532 | ||
693dfd5a ES |
3533 | static struct net_device* |
3534 | mlx5_ib_alloc_rdma_netdev(struct ib_device *hca, | |
3535 | u8 port_num, | |
3536 | enum rdma_netdev_t type, | |
3537 | const char *name, | |
3538 | unsigned char name_assign_type, | |
3539 | void (*setup)(struct net_device *)) | |
3540 | { | |
3541 | if (type != RDMA_NETDEV_IPOIB) | |
3542 | return ERR_PTR(-EOPNOTSUPP); | |
3543 | ||
3544 | return mlx5_rdma_netdev_alloc(to_mdev(hca)->mdev, hca, | |
3545 | name, setup); | |
3546 | } | |
3547 | ||
3548 | static void mlx5_ib_free_rdma_netdev(struct net_device *netdev) | |
3549 | { | |
3550 | return mlx5_rdma_netdev_free(netdev); | |
3551 | } | |
3552 | ||
9603b61d | 3553 | static void *mlx5_ib_add(struct mlx5_core_dev *mdev) |
e126ba97 | 3554 | { |
e126ba97 | 3555 | struct mlx5_ib_dev *dev; |
ebd61f68 AS |
3556 | enum rdma_link_layer ll; |
3557 | int port_type_cap; | |
4babcf97 | 3558 | const char *name; |
e126ba97 EC |
3559 | int err; |
3560 | int i; | |
3561 | ||
ebd61f68 AS |
3562 | port_type_cap = MLX5_CAP_GEN(mdev, port_type); |
3563 | ll = mlx5_port_type_cap_to_rdma_ll(port_type_cap); | |
3564 | ||
e126ba97 EC |
3565 | printk_once(KERN_INFO "%s", mlx5_version); |
3566 | ||
3567 | dev = (struct mlx5_ib_dev *)ib_alloc_device(sizeof(*dev)); | |
3568 | if (!dev) | |
9603b61d | 3569 | return NULL; |
e126ba97 | 3570 | |
9603b61d | 3571 | dev->mdev = mdev; |
e126ba97 | 3572 | |
0837e86a MB |
3573 | dev->port = kcalloc(MLX5_CAP_GEN(mdev, num_ports), sizeof(*dev->port), |
3574 | GFP_KERNEL); | |
3575 | if (!dev->port) | |
3576 | goto err_dealloc; | |
3577 | ||
fc24fc5e | 3578 | rwlock_init(&dev->roce.netdev_lock); |
e126ba97 EC |
3579 | err = get_port_caps(dev); |
3580 | if (err) | |
0837e86a | 3581 | goto err_free_port; |
e126ba97 | 3582 | |
1b5daf11 MD |
3583 | if (mlx5_use_mad_ifc(dev)) |
3584 | get_ext_port_caps(dev); | |
e126ba97 | 3585 | |
4babcf97 AH |
3586 | if (!mlx5_lag_is_active(mdev)) |
3587 | name = "mlx5_%d"; | |
3588 | else | |
3589 | name = "mlx5_bond_%d"; | |
3590 | ||
3591 | strlcpy(dev->ib_dev.name, name, IB_DEVICE_NAME_MAX); | |
e126ba97 EC |
3592 | dev->ib_dev.owner = THIS_MODULE; |
3593 | dev->ib_dev.node_type = RDMA_NODE_IB_CA; | |
c6790aa9 | 3594 | dev->ib_dev.local_dma_lkey = 0 /* not supported for now */; |
938fe83c | 3595 | dev->num_ports = MLX5_CAP_GEN(mdev, num_ports); |
e126ba97 | 3596 | dev->ib_dev.phys_port_cnt = dev->num_ports; |
233d05d2 SM |
3597 | dev->ib_dev.num_comp_vectors = |
3598 | dev->mdev->priv.eq_table.num_comp_vectors; | |
9b0c289e | 3599 | dev->ib_dev.dev.parent = &mdev->pdev->dev; |
e126ba97 EC |
3600 | |
3601 | dev->ib_dev.uverbs_abi_ver = MLX5_IB_UVERBS_ABI_VERSION; | |
3602 | dev->ib_dev.uverbs_cmd_mask = | |
3603 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
3604 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
3605 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
3606 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
3607 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
41c450fd MS |
3608 | (1ull << IB_USER_VERBS_CMD_CREATE_AH) | |
3609 | (1ull << IB_USER_VERBS_CMD_DESTROY_AH) | | |
e126ba97 | 3610 | (1ull << IB_USER_VERBS_CMD_REG_MR) | |
56e11d62 | 3611 | (1ull << IB_USER_VERBS_CMD_REREG_MR) | |
e126ba97 EC |
3612 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | |
3613 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
3614 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
3615 | (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | | |
3616 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | | |
3617 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
3618 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
3619 | (1ull << IB_USER_VERBS_CMD_QUERY_QP) | | |
3620 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | |
3621 | (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | | |
3622 | (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) | | |
3623 | (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | | |
3624 | (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | | |
3625 | (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | | |
3626 | (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) | | |
3627 | (1ull << IB_USER_VERBS_CMD_CREATE_XSRQ) | | |
3628 | (1ull << IB_USER_VERBS_CMD_OPEN_QP); | |
1707cb4a | 3629 | dev->ib_dev.uverbs_ex_cmd_mask = |
d4584ddf MB |
3630 | (1ull << IB_USER_VERBS_EX_CMD_QUERY_DEVICE) | |
3631 | (1ull << IB_USER_VERBS_EX_CMD_CREATE_CQ) | | |
7d29f349 BW |
3632 | (1ull << IB_USER_VERBS_EX_CMD_CREATE_QP) | |
3633 | (1ull << IB_USER_VERBS_EX_CMD_MODIFY_QP); | |
e126ba97 EC |
3634 | |
3635 | dev->ib_dev.query_device = mlx5_ib_query_device; | |
3636 | dev->ib_dev.query_port = mlx5_ib_query_port; | |
ebd61f68 | 3637 | dev->ib_dev.get_link_layer = mlx5_ib_port_link_layer; |
fc24fc5e AS |
3638 | if (ll == IB_LINK_LAYER_ETHERNET) |
3639 | dev->ib_dev.get_netdev = mlx5_ib_get_netdev; | |
e126ba97 | 3640 | dev->ib_dev.query_gid = mlx5_ib_query_gid; |
3cca2606 AS |
3641 | dev->ib_dev.add_gid = mlx5_ib_add_gid; |
3642 | dev->ib_dev.del_gid = mlx5_ib_del_gid; | |
e126ba97 EC |
3643 | dev->ib_dev.query_pkey = mlx5_ib_query_pkey; |
3644 | dev->ib_dev.modify_device = mlx5_ib_modify_device; | |
3645 | dev->ib_dev.modify_port = mlx5_ib_modify_port; | |
3646 | dev->ib_dev.alloc_ucontext = mlx5_ib_alloc_ucontext; | |
3647 | dev->ib_dev.dealloc_ucontext = mlx5_ib_dealloc_ucontext; | |
3648 | dev->ib_dev.mmap = mlx5_ib_mmap; | |
3649 | dev->ib_dev.alloc_pd = mlx5_ib_alloc_pd; | |
3650 | dev->ib_dev.dealloc_pd = mlx5_ib_dealloc_pd; | |
3651 | dev->ib_dev.create_ah = mlx5_ib_create_ah; | |
3652 | dev->ib_dev.query_ah = mlx5_ib_query_ah; | |
3653 | dev->ib_dev.destroy_ah = mlx5_ib_destroy_ah; | |
3654 | dev->ib_dev.create_srq = mlx5_ib_create_srq; | |
3655 | dev->ib_dev.modify_srq = mlx5_ib_modify_srq; | |
3656 | dev->ib_dev.query_srq = mlx5_ib_query_srq; | |
3657 | dev->ib_dev.destroy_srq = mlx5_ib_destroy_srq; | |
3658 | dev->ib_dev.post_srq_recv = mlx5_ib_post_srq_recv; | |
3659 | dev->ib_dev.create_qp = mlx5_ib_create_qp; | |
3660 | dev->ib_dev.modify_qp = mlx5_ib_modify_qp; | |
3661 | dev->ib_dev.query_qp = mlx5_ib_query_qp; | |
3662 | dev->ib_dev.destroy_qp = mlx5_ib_destroy_qp; | |
3663 | dev->ib_dev.post_send = mlx5_ib_post_send; | |
3664 | dev->ib_dev.post_recv = mlx5_ib_post_recv; | |
3665 | dev->ib_dev.create_cq = mlx5_ib_create_cq; | |
3666 | dev->ib_dev.modify_cq = mlx5_ib_modify_cq; | |
3667 | dev->ib_dev.resize_cq = mlx5_ib_resize_cq; | |
3668 | dev->ib_dev.destroy_cq = mlx5_ib_destroy_cq; | |
3669 | dev->ib_dev.poll_cq = mlx5_ib_poll_cq; | |
3670 | dev->ib_dev.req_notify_cq = mlx5_ib_arm_cq; | |
3671 | dev->ib_dev.get_dma_mr = mlx5_ib_get_dma_mr; | |
3672 | dev->ib_dev.reg_user_mr = mlx5_ib_reg_user_mr; | |
56e11d62 | 3673 | dev->ib_dev.rereg_user_mr = mlx5_ib_rereg_user_mr; |
e126ba97 EC |
3674 | dev->ib_dev.dereg_mr = mlx5_ib_dereg_mr; |
3675 | dev->ib_dev.attach_mcast = mlx5_ib_mcg_attach; | |
3676 | dev->ib_dev.detach_mcast = mlx5_ib_mcg_detach; | |
3677 | dev->ib_dev.process_mad = mlx5_ib_process_mad; | |
9bee178b | 3678 | dev->ib_dev.alloc_mr = mlx5_ib_alloc_mr; |
8a187ee5 | 3679 | dev->ib_dev.map_mr_sg = mlx5_ib_map_mr_sg; |
d5436ba0 | 3680 | dev->ib_dev.check_mr_status = mlx5_ib_check_mr_status; |
7738613e | 3681 | dev->ib_dev.get_port_immutable = mlx5_port_immutable; |
c7342823 | 3682 | dev->ib_dev.get_dev_fw_str = get_dev_fw_str; |
693dfd5a ES |
3683 | dev->ib_dev.alloc_rdma_netdev = mlx5_ib_alloc_rdma_netdev; |
3684 | dev->ib_dev.free_rdma_netdev = mlx5_ib_free_rdma_netdev; | |
eff901d3 EC |
3685 | if (mlx5_core_is_pf(mdev)) { |
3686 | dev->ib_dev.get_vf_config = mlx5_ib_get_vf_config; | |
3687 | dev->ib_dev.set_vf_link_state = mlx5_ib_set_vf_link_state; | |
3688 | dev->ib_dev.get_vf_stats = mlx5_ib_get_vf_stats; | |
3689 | dev->ib_dev.set_vf_guid = mlx5_ib_set_vf_guid; | |
3690 | } | |
e126ba97 | 3691 | |
7c2344c3 MG |
3692 | dev->ib_dev.disassociate_ucontext = mlx5_ib_disassociate_ucontext; |
3693 | ||
938fe83c | 3694 | mlx5_ib_internal_fill_odp_caps(dev); |
8cdd312c | 3695 | |
d2370e0a MB |
3696 | if (MLX5_CAP_GEN(mdev, imaicl)) { |
3697 | dev->ib_dev.alloc_mw = mlx5_ib_alloc_mw; | |
3698 | dev->ib_dev.dealloc_mw = mlx5_ib_dealloc_mw; | |
3699 | dev->ib_dev.uverbs_cmd_mask |= | |
3700 | (1ull << IB_USER_VERBS_CMD_ALLOC_MW) | | |
3701 | (1ull << IB_USER_VERBS_CMD_DEALLOC_MW); | |
3702 | } | |
3703 | ||
7c16f477 | 3704 | if (MLX5_CAP_GEN(dev->mdev, max_qp_cnt)) { |
0ad17a8f MB |
3705 | dev->ib_dev.get_hw_stats = mlx5_ib_get_hw_stats; |
3706 | dev->ib_dev.alloc_hw_stats = mlx5_ib_alloc_hw_stats; | |
3707 | } | |
3708 | ||
938fe83c | 3709 | if (MLX5_CAP_GEN(mdev, xrc)) { |
e126ba97 EC |
3710 | dev->ib_dev.alloc_xrcd = mlx5_ib_alloc_xrcd; |
3711 | dev->ib_dev.dealloc_xrcd = mlx5_ib_dealloc_xrcd; | |
3712 | dev->ib_dev.uverbs_cmd_mask |= | |
3713 | (1ull << IB_USER_VERBS_CMD_OPEN_XRCD) | | |
3714 | (1ull << IB_USER_VERBS_CMD_CLOSE_XRCD); | |
3715 | } | |
3716 | ||
048ccca8 | 3717 | if (mlx5_ib_port_link_layer(&dev->ib_dev, 1) == |
038d2ef8 MG |
3718 | IB_LINK_LAYER_ETHERNET) { |
3719 | dev->ib_dev.create_flow = mlx5_ib_create_flow; | |
3720 | dev->ib_dev.destroy_flow = mlx5_ib_destroy_flow; | |
79b20a6c YH |
3721 | dev->ib_dev.create_wq = mlx5_ib_create_wq; |
3722 | dev->ib_dev.modify_wq = mlx5_ib_modify_wq; | |
3723 | dev->ib_dev.destroy_wq = mlx5_ib_destroy_wq; | |
c5f90929 YH |
3724 | dev->ib_dev.create_rwq_ind_table = mlx5_ib_create_rwq_ind_table; |
3725 | dev->ib_dev.destroy_rwq_ind_table = mlx5_ib_destroy_rwq_ind_table; | |
038d2ef8 MG |
3726 | dev->ib_dev.uverbs_ex_cmd_mask |= |
3727 | (1ull << IB_USER_VERBS_EX_CMD_CREATE_FLOW) | | |
79b20a6c YH |
3728 | (1ull << IB_USER_VERBS_EX_CMD_DESTROY_FLOW) | |
3729 | (1ull << IB_USER_VERBS_EX_CMD_CREATE_WQ) | | |
3730 | (1ull << IB_USER_VERBS_EX_CMD_MODIFY_WQ) | | |
c5f90929 YH |
3731 | (1ull << IB_USER_VERBS_EX_CMD_DESTROY_WQ) | |
3732 | (1ull << IB_USER_VERBS_EX_CMD_CREATE_RWQ_IND_TBL) | | |
3733 | (1ull << IB_USER_VERBS_EX_CMD_DESTROY_RWQ_IND_TBL); | |
038d2ef8 | 3734 | } |
e126ba97 EC |
3735 | err = init_node_data(dev); |
3736 | if (err) | |
90be7c8a | 3737 | goto err_free_port; |
e126ba97 | 3738 | |
038d2ef8 | 3739 | mutex_init(&dev->flow_db.lock); |
e126ba97 | 3740 | mutex_init(&dev->cap_mask_mutex); |
89ea94a7 MG |
3741 | INIT_LIST_HEAD(&dev->qp_list); |
3742 | spin_lock_init(&dev->reset_flow_resource_lock); | |
e126ba97 | 3743 | |
fc24fc5e | 3744 | if (ll == IB_LINK_LAYER_ETHERNET) { |
45f95acd | 3745 | err = mlx5_enable_eth(dev); |
fc24fc5e | 3746 | if (err) |
90be7c8a | 3747 | goto err_free_port; |
fc24fc5e AS |
3748 | } |
3749 | ||
e126ba97 EC |
3750 | err = create_dev_resources(&dev->devr); |
3751 | if (err) | |
45f95acd | 3752 | goto err_disable_eth; |
e126ba97 | 3753 | |
6aec21f6 | 3754 | err = mlx5_ib_odp_init_one(dev); |
281d1a92 | 3755 | if (err) |
e126ba97 EC |
3756 | goto err_rsrc; |
3757 | ||
45bded2c | 3758 | if (MLX5_CAP_GEN(dev->mdev, max_qp_cnt)) { |
e1f24a79 | 3759 | err = mlx5_ib_alloc_counters(dev); |
45bded2c KH |
3760 | if (err) |
3761 | goto err_odp; | |
3762 | } | |
6aec21f6 | 3763 | |
5fe9dec0 EC |
3764 | dev->mdev->priv.uar = mlx5_get_uars_page(dev->mdev); |
3765 | if (!dev->mdev->priv.uar) | |
e1f24a79 | 3766 | goto err_cnt; |
5fe9dec0 EC |
3767 | |
3768 | err = mlx5_alloc_bfreg(dev->mdev, &dev->bfreg, false, false); | |
3769 | if (err) | |
3770 | goto err_uar_page; | |
3771 | ||
3772 | err = mlx5_alloc_bfreg(dev->mdev, &dev->fp_bfreg, false, true); | |
3773 | if (err) | |
3774 | goto err_bfreg; | |
3775 | ||
0837e86a MB |
3776 | err = ib_register_device(&dev->ib_dev, NULL); |
3777 | if (err) | |
5fe9dec0 | 3778 | goto err_fp_bfreg; |
0837e86a | 3779 | |
e126ba97 EC |
3780 | err = create_umr_res(dev); |
3781 | if (err) | |
3782 | goto err_dev; | |
3783 | ||
3784 | for (i = 0; i < ARRAY_SIZE(mlx5_class_attributes); i++) { | |
281d1a92 WY |
3785 | err = device_create_file(&dev->ib_dev.dev, |
3786 | mlx5_class_attributes[i]); | |
3787 | if (err) | |
e126ba97 EC |
3788 | goto err_umrc; |
3789 | } | |
3790 | ||
3791 | dev->ib_active = true; | |
3792 | ||
9603b61d | 3793 | return dev; |
e126ba97 EC |
3794 | |
3795 | err_umrc: | |
3796 | destroy_umrc_res(dev); | |
3797 | ||
3798 | err_dev: | |
3799 | ib_unregister_device(&dev->ib_dev); | |
3800 | ||
5fe9dec0 EC |
3801 | err_fp_bfreg: |
3802 | mlx5_free_bfreg(dev->mdev, &dev->fp_bfreg); | |
3803 | ||
3804 | err_bfreg: | |
3805 | mlx5_free_bfreg(dev->mdev, &dev->bfreg); | |
3806 | ||
3807 | err_uar_page: | |
3808 | mlx5_put_uars_page(dev->mdev, dev->mdev->priv.uar); | |
3809 | ||
e1f24a79 | 3810 | err_cnt: |
45bded2c | 3811 | if (MLX5_CAP_GEN(dev->mdev, max_qp_cnt)) |
e1f24a79 | 3812 | mlx5_ib_dealloc_counters(dev); |
0837e86a | 3813 | |
6aec21f6 HE |
3814 | err_odp: |
3815 | mlx5_ib_odp_remove_one(dev); | |
3816 | ||
e126ba97 EC |
3817 | err_rsrc: |
3818 | destroy_dev_resources(&dev->devr); | |
3819 | ||
45f95acd | 3820 | err_disable_eth: |
5ec8c83e | 3821 | if (ll == IB_LINK_LAYER_ETHERNET) { |
45f95acd | 3822 | mlx5_disable_eth(dev); |
d012f5d6 | 3823 | mlx5_remove_netdev_notifier(dev); |
5ec8c83e | 3824 | } |
fc24fc5e | 3825 | |
0837e86a MB |
3826 | err_free_port: |
3827 | kfree(dev->port); | |
3828 | ||
9603b61d | 3829 | err_dealloc: |
e126ba97 EC |
3830 | ib_dealloc_device((struct ib_device *)dev); |
3831 | ||
9603b61d | 3832 | return NULL; |
e126ba97 EC |
3833 | } |
3834 | ||
9603b61d | 3835 | static void mlx5_ib_remove(struct mlx5_core_dev *mdev, void *context) |
e126ba97 | 3836 | { |
9603b61d | 3837 | struct mlx5_ib_dev *dev = context; |
fc24fc5e | 3838 | enum rdma_link_layer ll = mlx5_ib_port_link_layer(&dev->ib_dev, 1); |
6aec21f6 | 3839 | |
d012f5d6 | 3840 | mlx5_remove_netdev_notifier(dev); |
e126ba97 | 3841 | ib_unregister_device(&dev->ib_dev); |
5fe9dec0 EC |
3842 | mlx5_free_bfreg(dev->mdev, &dev->fp_bfreg); |
3843 | mlx5_free_bfreg(dev->mdev, &dev->bfreg); | |
3844 | mlx5_put_uars_page(dev->mdev, mdev->priv.uar); | |
45bded2c | 3845 | if (MLX5_CAP_GEN(dev->mdev, max_qp_cnt)) |
e1f24a79 | 3846 | mlx5_ib_dealloc_counters(dev); |
eefd56e5 | 3847 | destroy_umrc_res(dev); |
6aec21f6 | 3848 | mlx5_ib_odp_remove_one(dev); |
e126ba97 | 3849 | destroy_dev_resources(&dev->devr); |
fc24fc5e | 3850 | if (ll == IB_LINK_LAYER_ETHERNET) |
45f95acd | 3851 | mlx5_disable_eth(dev); |
0837e86a | 3852 | kfree(dev->port); |
e126ba97 EC |
3853 | ib_dealloc_device(&dev->ib_dev); |
3854 | } | |
3855 | ||
9603b61d JM |
3856 | static struct mlx5_interface mlx5_ib_interface = { |
3857 | .add = mlx5_ib_add, | |
3858 | .remove = mlx5_ib_remove, | |
3859 | .event = mlx5_ib_event, | |
d9aaed83 AK |
3860 | #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING |
3861 | .pfault = mlx5_ib_pfault, | |
3862 | #endif | |
64613d94 | 3863 | .protocol = MLX5_INTERFACE_PROTOCOL_IB, |
e126ba97 EC |
3864 | }; |
3865 | ||
3866 | static int __init mlx5_ib_init(void) | |
3867 | { | |
6aec21f6 HE |
3868 | int err; |
3869 | ||
81713d37 | 3870 | mlx5_ib_odp_init(); |
9603b61d | 3871 | |
6aec21f6 | 3872 | err = mlx5_register_interface(&mlx5_ib_interface); |
6aec21f6 | 3873 | |
6aec21f6 | 3874 | return err; |
e126ba97 EC |
3875 | } |
3876 | ||
3877 | static void __exit mlx5_ib_cleanup(void) | |
3878 | { | |
9603b61d | 3879 | mlx5_unregister_interface(&mlx5_ib_interface); |
e126ba97 EC |
3880 | } |
3881 | ||
3882 | module_init(mlx5_ib_init); | |
3883 | module_exit(mlx5_ib_cleanup); |