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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Copyright (c) 2004 Mellanox Technologies Ltd. All rights reserved. | |
3 | * Copyright (c) 2004 Infinicon Corporation. All rights reserved. | |
4 | * Copyright (c) 2004 Intel Corporation. All rights reserved. | |
5 | * Copyright (c) 2004 Topspin Corporation. All rights reserved. | |
6 | * Copyright (c) 2004 Voltaire Corporation. All rights reserved. | |
2a1d9b7f | 7 | * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. |
f7c6a7b5 | 8 | * Copyright (c) 2005, 2006, 2007 Cisco Systems. All rights reserved. |
1da177e4 LT |
9 | * |
10 | * This software is available to you under a choice of one of two | |
11 | * licenses. You may choose to be licensed under the terms of the GNU | |
12 | * General Public License (GPL) Version 2, available from the file | |
13 | * COPYING in the main directory of this source tree, or the | |
14 | * OpenIB.org BSD license below: | |
15 | * | |
16 | * Redistribution and use in source and binary forms, with or | |
17 | * without modification, are permitted provided that the following | |
18 | * conditions are met: | |
19 | * | |
20 | * - Redistributions of source code must retain the above | |
21 | * copyright notice, this list of conditions and the following | |
22 | * disclaimer. | |
23 | * | |
24 | * - Redistributions in binary form must reproduce the above | |
25 | * copyright notice, this list of conditions and the following | |
26 | * disclaimer in the documentation and/or other materials | |
27 | * provided with the distribution. | |
28 | * | |
29 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
30 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
31 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
32 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
33 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
34 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
35 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
36 | * SOFTWARE. | |
1da177e4 LT |
37 | */ |
38 | ||
39 | #if !defined(IB_VERBS_H) | |
40 | #define IB_VERBS_H | |
41 | ||
42 | #include <linux/types.h> | |
43 | #include <linux/device.h> | |
9b513090 | 44 | #include <linux/dma-mapping.h> |
459d6e2a | 45 | #include <linux/kref.h> |
bfb3ea12 DB |
46 | #include <linux/list.h> |
47 | #include <linux/rwsem.h> | |
f0626710 | 48 | #include <linux/workqueue.h> |
14d3a3b2 | 49 | #include <linux/irq_poll.h> |
dd5f03be | 50 | #include <uapi/linux/if_ether.h> |
c865f246 SK |
51 | #include <net/ipv6.h> |
52 | #include <net/ip.h> | |
301a721e MB |
53 | #include <linux/string.h> |
54 | #include <linux/slab.h> | |
2fc77572 | 55 | #include <linux/netdevice.h> |
01b67117 | 56 | #include <linux/refcount.h> |
50174a7f | 57 | #include <linux/if_link.h> |
60063497 | 58 | #include <linux/atomic.h> |
882214e2 | 59 | #include <linux/mmu_notifier.h> |
7c0f6ba6 | 60 | #include <linux/uaccess.h> |
43579b5f | 61 | #include <linux/cgroup_rdma.h> |
f6316032 LR |
62 | #include <linux/irqflags.h> |
63 | #include <linux/preempt.h> | |
ea6819e1 | 64 | #include <uapi/rdma/ib_user_verbs.h> |
02d8883f | 65 | #include <rdma/restrack.h> |
0ede73bc | 66 | #include <uapi/rdma/rdma_user_ioctl.h> |
2eb9beae | 67 | #include <uapi/rdma/ib_user_ioctl_verbs.h> |
1da177e4 | 68 | |
9abb0d1b LR |
69 | #define IB_FW_VERSION_NAME_MAX ETHTOOL_FWVERS_LEN |
70 | ||
b5231b01 JG |
71 | struct ib_umem_odp; |
72 | ||
f0626710 | 73 | extern struct workqueue_struct *ib_wq; |
14d3a3b2 | 74 | extern struct workqueue_struct *ib_comp_wq; |
f794809a | 75 | extern struct workqueue_struct *ib_comp_unbound_wq; |
f0626710 | 76 | |
923abb9d GP |
77 | __printf(3, 4) __cold |
78 | void ibdev_printk(const char *level, const struct ib_device *ibdev, | |
79 | const char *format, ...); | |
80 | __printf(2, 3) __cold | |
81 | void ibdev_emerg(const struct ib_device *ibdev, const char *format, ...); | |
82 | __printf(2, 3) __cold | |
83 | void ibdev_alert(const struct ib_device *ibdev, const char *format, ...); | |
84 | __printf(2, 3) __cold | |
85 | void ibdev_crit(const struct ib_device *ibdev, const char *format, ...); | |
86 | __printf(2, 3) __cold | |
87 | void ibdev_err(const struct ib_device *ibdev, const char *format, ...); | |
88 | __printf(2, 3) __cold | |
89 | void ibdev_warn(const struct ib_device *ibdev, const char *format, ...); | |
90 | __printf(2, 3) __cold | |
91 | void ibdev_notice(const struct ib_device *ibdev, const char *format, ...); | |
92 | __printf(2, 3) __cold | |
93 | void ibdev_info(const struct ib_device *ibdev, const char *format, ...); | |
94 | ||
95 | #if defined(CONFIG_DYNAMIC_DEBUG) | |
96 | #define ibdev_dbg(__dev, format, args...) \ | |
97 | dynamic_ibdev_dbg(__dev, format, ##args) | |
98 | #elif defined(DEBUG) | |
99 | #define ibdev_dbg(__dev, format, args...) \ | |
100 | ibdev_printk(KERN_DEBUG, __dev, format, ##args) | |
101 | #else | |
102 | __printf(2, 3) __cold | |
103 | static inline | |
104 | void ibdev_dbg(const struct ib_device *ibdev, const char *format, ...) {} | |
105 | #endif | |
106 | ||
1da177e4 LT |
107 | union ib_gid { |
108 | u8 raw[16]; | |
109 | struct { | |
97f52eb4 SH |
110 | __be64 subnet_prefix; |
111 | __be64 interface_id; | |
1da177e4 LT |
112 | } global; |
113 | }; | |
114 | ||
e26be1bf MS |
115 | extern union ib_gid zgid; |
116 | ||
b39ffa1d MB |
117 | enum ib_gid_type { |
118 | /* If link layer is Ethernet, this is RoCE V1 */ | |
119 | IB_GID_TYPE_IB = 0, | |
120 | IB_GID_TYPE_ROCE = 0, | |
7766a99f | 121 | IB_GID_TYPE_ROCE_UDP_ENCAP = 1, |
b39ffa1d MB |
122 | IB_GID_TYPE_SIZE |
123 | }; | |
124 | ||
7ead4bcb | 125 | #define ROCE_V2_UDP_DPORT 4791 |
03db3a2d MB |
126 | struct ib_gid_attr { |
127 | struct net_device *ndev; | |
598ff6ba | 128 | struct ib_device *device; |
b150c386 | 129 | union ib_gid gid; |
598ff6ba PP |
130 | enum ib_gid_type gid_type; |
131 | u16 index; | |
132 | u8 port_num; | |
03db3a2d MB |
133 | }; |
134 | ||
07ebafba TT |
135 | enum rdma_node_type { |
136 | /* IB values map to NodeInfo:NodeType. */ | |
137 | RDMA_NODE_IB_CA = 1, | |
138 | RDMA_NODE_IB_SWITCH, | |
139 | RDMA_NODE_IB_ROUTER, | |
180771a3 UM |
140 | RDMA_NODE_RNIC, |
141 | RDMA_NODE_USNIC, | |
5db5765e | 142 | RDMA_NODE_USNIC_UDP, |
1da177e4 LT |
143 | }; |
144 | ||
a0c1b2a3 EC |
145 | enum { |
146 | /* set the local administered indication */ | |
147 | IB_SA_WELL_KNOWN_GUID = BIT_ULL(57) | 2, | |
148 | }; | |
149 | ||
07ebafba TT |
150 | enum rdma_transport_type { |
151 | RDMA_TRANSPORT_IB, | |
180771a3 | 152 | RDMA_TRANSPORT_IWARP, |
248567f7 UM |
153 | RDMA_TRANSPORT_USNIC, |
154 | RDMA_TRANSPORT_USNIC_UDP | |
07ebafba TT |
155 | }; |
156 | ||
6b90a6d6 MW |
157 | enum rdma_protocol_type { |
158 | RDMA_PROTOCOL_IB, | |
159 | RDMA_PROTOCOL_IBOE, | |
160 | RDMA_PROTOCOL_IWARP, | |
161 | RDMA_PROTOCOL_USNIC_UDP | |
162 | }; | |
163 | ||
8385fd84 RD |
164 | __attribute_const__ enum rdma_transport_type |
165 | rdma_node_get_transport(enum rdma_node_type node_type); | |
07ebafba | 166 | |
c865f246 SK |
167 | enum rdma_network_type { |
168 | RDMA_NETWORK_IB, | |
169 | RDMA_NETWORK_ROCE_V1 = RDMA_NETWORK_IB, | |
170 | RDMA_NETWORK_IPV4, | |
171 | RDMA_NETWORK_IPV6 | |
172 | }; | |
173 | ||
174 | static inline enum ib_gid_type ib_network_to_gid_type(enum rdma_network_type network_type) | |
175 | { | |
176 | if (network_type == RDMA_NETWORK_IPV4 || | |
177 | network_type == RDMA_NETWORK_IPV6) | |
178 | return IB_GID_TYPE_ROCE_UDP_ENCAP; | |
179 | ||
180 | /* IB_GID_TYPE_IB same as RDMA_NETWORK_ROCE_V1 */ | |
181 | return IB_GID_TYPE_IB; | |
182 | } | |
183 | ||
47ec3866 PP |
184 | static inline enum rdma_network_type |
185 | rdma_gid_attr_network_type(const struct ib_gid_attr *attr) | |
c865f246 | 186 | { |
47ec3866 | 187 | if (attr->gid_type == IB_GID_TYPE_IB) |
c865f246 SK |
188 | return RDMA_NETWORK_IB; |
189 | ||
47ec3866 | 190 | if (ipv6_addr_v4mapped((struct in6_addr *)&attr->gid)) |
c865f246 SK |
191 | return RDMA_NETWORK_IPV4; |
192 | else | |
193 | return RDMA_NETWORK_IPV6; | |
194 | } | |
195 | ||
a3f5adaf EC |
196 | enum rdma_link_layer { |
197 | IB_LINK_LAYER_UNSPECIFIED, | |
198 | IB_LINK_LAYER_INFINIBAND, | |
199 | IB_LINK_LAYER_ETHERNET, | |
200 | }; | |
201 | ||
1da177e4 | 202 | enum ib_device_cap_flags { |
7ca0bc53 LR |
203 | IB_DEVICE_RESIZE_MAX_WR = (1 << 0), |
204 | IB_DEVICE_BAD_PKEY_CNTR = (1 << 1), | |
205 | IB_DEVICE_BAD_QKEY_CNTR = (1 << 2), | |
206 | IB_DEVICE_RAW_MULTI = (1 << 3), | |
207 | IB_DEVICE_AUTO_PATH_MIG = (1 << 4), | |
208 | IB_DEVICE_CHANGE_PHY_PORT = (1 << 5), | |
209 | IB_DEVICE_UD_AV_PORT_ENFORCE = (1 << 6), | |
210 | IB_DEVICE_CURR_QP_STATE_MOD = (1 << 7), | |
211 | IB_DEVICE_SHUTDOWN_PORT = (1 << 8), | |
78b57f95 | 212 | /* Not in use, former INIT_TYPE = (1 << 9),*/ |
7ca0bc53 LR |
213 | IB_DEVICE_PORT_ACTIVE_EVENT = (1 << 10), |
214 | IB_DEVICE_SYS_IMAGE_GUID = (1 << 11), | |
215 | IB_DEVICE_RC_RNR_NAK_GEN = (1 << 12), | |
216 | IB_DEVICE_SRQ_RESIZE = (1 << 13), | |
217 | IB_DEVICE_N_NOTIFY_CQ = (1 << 14), | |
b1adc714 CH |
218 | |
219 | /* | |
220 | * This device supports a per-device lkey or stag that can be | |
221 | * used without performing a memory registration for the local | |
222 | * memory. Note that ULPs should never check this flag, but | |
223 | * instead of use the local_dma_lkey flag in the ib_pd structure, | |
224 | * which will always contain a usable lkey. | |
225 | */ | |
7ca0bc53 | 226 | IB_DEVICE_LOCAL_DMA_LKEY = (1 << 15), |
78b57f95 | 227 | /* Reserved, old SEND_W_INV = (1 << 16),*/ |
7ca0bc53 | 228 | IB_DEVICE_MEM_WINDOW = (1 << 17), |
e0605d91 EC |
229 | /* |
230 | * Devices should set IB_DEVICE_UD_IP_SUM if they support | |
231 | * insertion of UDP and TCP checksum on outgoing UD IPoIB | |
232 | * messages and can verify the validity of checksum for | |
233 | * incoming messages. Setting this flag implies that the | |
234 | * IPoIB driver may set NETIF_F_IP_CSUM for datagram mode. | |
235 | */ | |
7ca0bc53 LR |
236 | IB_DEVICE_UD_IP_CSUM = (1 << 18), |
237 | IB_DEVICE_UD_TSO = (1 << 19), | |
238 | IB_DEVICE_XRC = (1 << 20), | |
b1adc714 CH |
239 | |
240 | /* | |
241 | * This device supports the IB "base memory management extension", | |
242 | * which includes support for fast registrations (IB_WR_REG_MR, | |
243 | * IB_WR_LOCAL_INV and IB_WR_SEND_WITH_INV verbs). This flag should | |
244 | * also be set by any iWarp device which must support FRs to comply | |
245 | * to the iWarp verbs spec. iWarp devices also support the | |
246 | * IB_WR_RDMA_READ_WITH_INV verb for RDMA READs that invalidate the | |
247 | * stag. | |
248 | */ | |
7ca0bc53 LR |
249 | IB_DEVICE_MEM_MGT_EXTENSIONS = (1 << 21), |
250 | IB_DEVICE_BLOCK_MULTICAST_LOOPBACK = (1 << 22), | |
251 | IB_DEVICE_MEM_WINDOW_TYPE_2A = (1 << 23), | |
252 | IB_DEVICE_MEM_WINDOW_TYPE_2B = (1 << 24), | |
253 | IB_DEVICE_RC_IP_CSUM = (1 << 25), | |
ebaaee25 | 254 | /* Deprecated. Please use IB_RAW_PACKET_CAP_IP_CSUM. */ |
7ca0bc53 | 255 | IB_DEVICE_RAW_IP_CSUM = (1 << 26), |
8a06ce59 LR |
256 | /* |
257 | * Devices should set IB_DEVICE_CROSS_CHANNEL if they | |
258 | * support execution of WQEs that involve synchronization | |
259 | * of I/O operations with single completion queue managed | |
260 | * by hardware. | |
261 | */ | |
78b57f95 | 262 | IB_DEVICE_CROSS_CHANNEL = (1 << 27), |
7ca0bc53 LR |
263 | IB_DEVICE_MANAGED_FLOW_STEERING = (1 << 29), |
264 | IB_DEVICE_SIGNATURE_HANDOVER = (1 << 30), | |
47355b3c | 265 | IB_DEVICE_ON_DEMAND_PAGING = (1ULL << 31), |
f5aa9159 | 266 | IB_DEVICE_SG_GAPS_REG = (1ULL << 32), |
c7e162a4 | 267 | IB_DEVICE_VIRTUAL_FUNCTION = (1ULL << 33), |
ebaaee25 | 268 | /* Deprecated. Please use IB_RAW_PACKET_CAP_SCATTER_FCS. */ |
c7e162a4 | 269 | IB_DEVICE_RAW_SCATTER_FCS = (1ULL << 34), |
62e45949 | 270 | IB_DEVICE_RDMA_NETDEV_OPA_VNIC = (1ULL << 35), |
e1d2e887 NO |
271 | /* The device supports padding incoming writes to cacheline. */ |
272 | IB_DEVICE_PCI_WRITE_END_PADDING = (1ULL << 36), | |
3856ec4b | 273 | IB_DEVICE_ALLOW_USER_UNREG = (1ULL << 37), |
1b01d335 SG |
274 | }; |
275 | ||
276 | enum ib_signature_prot_cap { | |
277 | IB_PROT_T10DIF_TYPE_1 = 1, | |
278 | IB_PROT_T10DIF_TYPE_2 = 1 << 1, | |
279 | IB_PROT_T10DIF_TYPE_3 = 1 << 2, | |
280 | }; | |
281 | ||
282 | enum ib_signature_guard_cap { | |
283 | IB_GUARD_T10DIF_CRC = 1, | |
284 | IB_GUARD_T10DIF_CSUM = 1 << 1, | |
1da177e4 LT |
285 | }; |
286 | ||
287 | enum ib_atomic_cap { | |
288 | IB_ATOMIC_NONE, | |
289 | IB_ATOMIC_HCA, | |
290 | IB_ATOMIC_GLOB | |
291 | }; | |
292 | ||
860f10a7 | 293 | enum ib_odp_general_cap_bits { |
25bf14d6 AK |
294 | IB_ODP_SUPPORT = 1 << 0, |
295 | IB_ODP_SUPPORT_IMPLICIT = 1 << 1, | |
860f10a7 SG |
296 | }; |
297 | ||
298 | enum ib_odp_transport_cap_bits { | |
299 | IB_ODP_SUPPORT_SEND = 1 << 0, | |
300 | IB_ODP_SUPPORT_RECV = 1 << 1, | |
301 | IB_ODP_SUPPORT_WRITE = 1 << 2, | |
302 | IB_ODP_SUPPORT_READ = 1 << 3, | |
303 | IB_ODP_SUPPORT_ATOMIC = 1 << 4, | |
da823342 | 304 | IB_ODP_SUPPORT_SRQ_RECV = 1 << 5, |
860f10a7 SG |
305 | }; |
306 | ||
307 | struct ib_odp_caps { | |
308 | uint64_t general_caps; | |
309 | struct { | |
310 | uint32_t rc_odp_caps; | |
311 | uint32_t uc_odp_caps; | |
312 | uint32_t ud_odp_caps; | |
52a72e2a | 313 | uint32_t xrc_odp_caps; |
860f10a7 SG |
314 | } per_transport_caps; |
315 | }; | |
316 | ||
ccf20562 YH |
317 | struct ib_rss_caps { |
318 | /* Corresponding bit will be set if qp type from | |
319 | * 'enum ib_qp_type' is supported, e.g. | |
320 | * supported_qpts |= 1 << IB_QPT_UD | |
321 | */ | |
322 | u32 supported_qpts; | |
323 | u32 max_rwq_indirection_tables; | |
324 | u32 max_rwq_indirection_table_size; | |
325 | }; | |
326 | ||
6938fc1e AK |
327 | enum ib_tm_cap_flags { |
328 | /* Support tag matching on RC transport */ | |
329 | IB_TM_CAP_RC = 1 << 0, | |
330 | }; | |
331 | ||
78b1beb0 | 332 | struct ib_tm_caps { |
6938fc1e AK |
333 | /* Max size of RNDV header */ |
334 | u32 max_rndv_hdr_size; | |
335 | /* Max number of entries in tag matching list */ | |
336 | u32 max_num_tags; | |
337 | /* From enum ib_tm_cap_flags */ | |
338 | u32 flags; | |
339 | /* Max number of outstanding list operations */ | |
340 | u32 max_ops; | |
341 | /* Max number of SGE in tag matching entry */ | |
342 | u32 max_sge; | |
343 | }; | |
344 | ||
bcf4c1ea MB |
345 | struct ib_cq_init_attr { |
346 | unsigned int cqe; | |
347 | int comp_vector; | |
348 | u32 flags; | |
349 | }; | |
350 | ||
869ddcf8 YC |
351 | enum ib_cq_attr_mask { |
352 | IB_CQ_MODERATE = 1 << 0, | |
353 | }; | |
354 | ||
18bd9072 YC |
355 | struct ib_cq_caps { |
356 | u16 max_cq_moderation_count; | |
357 | u16 max_cq_moderation_period; | |
358 | }; | |
359 | ||
be934cca AL |
360 | struct ib_dm_mr_attr { |
361 | u64 length; | |
362 | u64 offset; | |
363 | u32 access_flags; | |
364 | }; | |
365 | ||
bee76d7a AL |
366 | struct ib_dm_alloc_attr { |
367 | u64 length; | |
368 | u32 alignment; | |
369 | u32 flags; | |
370 | }; | |
371 | ||
1da177e4 LT |
372 | struct ib_device_attr { |
373 | u64 fw_ver; | |
97f52eb4 | 374 | __be64 sys_image_guid; |
1da177e4 LT |
375 | u64 max_mr_size; |
376 | u64 page_size_cap; | |
377 | u32 vendor_id; | |
378 | u32 vendor_part_id; | |
379 | u32 hw_ver; | |
380 | int max_qp; | |
381 | int max_qp_wr; | |
fb532d6a | 382 | u64 device_cap_flags; |
33023fb8 SW |
383 | int max_send_sge; |
384 | int max_recv_sge; | |
1da177e4 LT |
385 | int max_sge_rd; |
386 | int max_cq; | |
387 | int max_cqe; | |
388 | int max_mr; | |
389 | int max_pd; | |
390 | int max_qp_rd_atom; | |
391 | int max_ee_rd_atom; | |
392 | int max_res_rd_atom; | |
393 | int max_qp_init_rd_atom; | |
394 | int max_ee_init_rd_atom; | |
395 | enum ib_atomic_cap atomic_cap; | |
5e80ba8f | 396 | enum ib_atomic_cap masked_atomic_cap; |
1da177e4 LT |
397 | int max_ee; |
398 | int max_rdd; | |
399 | int max_mw; | |
400 | int max_raw_ipv6_qp; | |
401 | int max_raw_ethy_qp; | |
402 | int max_mcast_grp; | |
403 | int max_mcast_qp_attach; | |
404 | int max_total_mcast_qp_attach; | |
405 | int max_ah; | |
406 | int max_fmr; | |
407 | int max_map_per_fmr; | |
408 | int max_srq; | |
409 | int max_srq_wr; | |
410 | int max_srq_sge; | |
00f7ec36 | 411 | unsigned int max_fast_reg_page_list_len; |
1da177e4 LT |
412 | u16 max_pkeys; |
413 | u8 local_ca_ack_delay; | |
1b01d335 SG |
414 | int sig_prot_cap; |
415 | int sig_guard_cap; | |
860f10a7 | 416 | struct ib_odp_caps odp_caps; |
24306dc6 MB |
417 | uint64_t timestamp_mask; |
418 | uint64_t hca_core_clock; /* in KHZ */ | |
ccf20562 YH |
419 | struct ib_rss_caps rss_caps; |
420 | u32 max_wq_type_rq; | |
ebaaee25 | 421 | u32 raw_packet_caps; /* Use ib_raw_packet_caps enum */ |
78b1beb0 | 422 | struct ib_tm_caps tm_caps; |
18bd9072 | 423 | struct ib_cq_caps cq_caps; |
1d8eeb9f | 424 | u64 max_dm_size; |
1da177e4 LT |
425 | }; |
426 | ||
427 | enum ib_mtu { | |
428 | IB_MTU_256 = 1, | |
429 | IB_MTU_512 = 2, | |
430 | IB_MTU_1024 = 3, | |
431 | IB_MTU_2048 = 4, | |
432 | IB_MTU_4096 = 5 | |
433 | }; | |
434 | ||
435 | static inline int ib_mtu_enum_to_int(enum ib_mtu mtu) | |
436 | { | |
437 | switch (mtu) { | |
438 | case IB_MTU_256: return 256; | |
439 | case IB_MTU_512: return 512; | |
440 | case IB_MTU_1024: return 1024; | |
441 | case IB_MTU_2048: return 2048; | |
442 | case IB_MTU_4096: return 4096; | |
443 | default: return -1; | |
444 | } | |
445 | } | |
446 | ||
d3f4aadd AR |
447 | static inline enum ib_mtu ib_mtu_int_to_enum(int mtu) |
448 | { | |
449 | if (mtu >= 4096) | |
450 | return IB_MTU_4096; | |
451 | else if (mtu >= 2048) | |
452 | return IB_MTU_2048; | |
453 | else if (mtu >= 1024) | |
454 | return IB_MTU_1024; | |
455 | else if (mtu >= 512) | |
456 | return IB_MTU_512; | |
457 | else | |
458 | return IB_MTU_256; | |
459 | } | |
460 | ||
1da177e4 LT |
461 | enum ib_port_state { |
462 | IB_PORT_NOP = 0, | |
463 | IB_PORT_DOWN = 1, | |
464 | IB_PORT_INIT = 2, | |
465 | IB_PORT_ARMED = 3, | |
466 | IB_PORT_ACTIVE = 4, | |
467 | IB_PORT_ACTIVE_DEFER = 5 | |
468 | }; | |
469 | ||
1da177e4 LT |
470 | enum ib_port_width { |
471 | IB_WIDTH_1X = 1, | |
dbabf685 | 472 | IB_WIDTH_2X = 16, |
1da177e4 LT |
473 | IB_WIDTH_4X = 2, |
474 | IB_WIDTH_8X = 4, | |
475 | IB_WIDTH_12X = 8 | |
476 | }; | |
477 | ||
478 | static inline int ib_width_enum_to_int(enum ib_port_width width) | |
479 | { | |
480 | switch (width) { | |
481 | case IB_WIDTH_1X: return 1; | |
dbabf685 | 482 | case IB_WIDTH_2X: return 2; |
1da177e4 LT |
483 | case IB_WIDTH_4X: return 4; |
484 | case IB_WIDTH_8X: return 8; | |
485 | case IB_WIDTH_12X: return 12; | |
486 | default: return -1; | |
487 | } | |
488 | } | |
489 | ||
2e96691c OG |
490 | enum ib_port_speed { |
491 | IB_SPEED_SDR = 1, | |
492 | IB_SPEED_DDR = 2, | |
493 | IB_SPEED_QDR = 4, | |
494 | IB_SPEED_FDR10 = 8, | |
495 | IB_SPEED_FDR = 16, | |
12113a35 NO |
496 | IB_SPEED_EDR = 32, |
497 | IB_SPEED_HDR = 64 | |
2e96691c OG |
498 | }; |
499 | ||
b40f4757 CL |
500 | /** |
501 | * struct rdma_hw_stats | |
e945130b MB |
502 | * @lock - Mutex to protect parallel write access to lifespan and values |
503 | * of counters, which are 64bits and not guaranteeed to be written | |
504 | * atomicaly on 32bits systems. | |
b40f4757 CL |
505 | * @timestamp - Used by the core code to track when the last update was |
506 | * @lifespan - Used by the core code to determine how old the counters | |
507 | * should be before being updated again. Stored in jiffies, defaults | |
508 | * to 10 milliseconds, drivers can override the default be specifying | |
509 | * their own value during their allocation routine. | |
510 | * @name - Array of pointers to static names used for the counters in | |
511 | * directory. | |
512 | * @num_counters - How many hardware counters there are. If name is | |
513 | * shorter than this number, a kernel oops will result. Driver authors | |
514 | * are encouraged to leave BUILD_BUG_ON(ARRAY_SIZE(@name) < num_counters) | |
515 | * in their code to prevent this. | |
516 | * @value - Array of u64 counters that are accessed by the sysfs code and | |
517 | * filled in by the drivers get_stats routine | |
518 | */ | |
519 | struct rdma_hw_stats { | |
e945130b | 520 | struct mutex lock; /* Protect lifespan and values[] */ |
b40f4757 CL |
521 | unsigned long timestamp; |
522 | unsigned long lifespan; | |
523 | const char * const *names; | |
524 | int num_counters; | |
525 | u64 value[]; | |
7f624d02 SW |
526 | }; |
527 | ||
b40f4757 CL |
528 | #define RDMA_HW_STATS_DEFAULT_LIFESPAN 10 |
529 | /** | |
530 | * rdma_alloc_hw_stats_struct - Helper function to allocate dynamic struct | |
531 | * for drivers. | |
532 | * @names - Array of static const char * | |
533 | * @num_counters - How many elements in array | |
534 | * @lifespan - How many milliseconds between updates | |
535 | */ | |
536 | static inline struct rdma_hw_stats *rdma_alloc_hw_stats_struct( | |
537 | const char * const *names, int num_counters, | |
538 | unsigned long lifespan) | |
539 | { | |
540 | struct rdma_hw_stats *stats; | |
541 | ||
542 | stats = kzalloc(sizeof(*stats) + num_counters * sizeof(u64), | |
543 | GFP_KERNEL); | |
544 | if (!stats) | |
545 | return NULL; | |
546 | stats->names = names; | |
547 | stats->num_counters = num_counters; | |
548 | stats->lifespan = msecs_to_jiffies(lifespan); | |
549 | ||
550 | return stats; | |
551 | } | |
552 | ||
553 | ||
f9b22e35 IW |
554 | /* Define bits for the various functionality this port needs to be supported by |
555 | * the core. | |
556 | */ | |
557 | /* Management 0x00000FFF */ | |
558 | #define RDMA_CORE_CAP_IB_MAD 0x00000001 | |
559 | #define RDMA_CORE_CAP_IB_SMI 0x00000002 | |
560 | #define RDMA_CORE_CAP_IB_CM 0x00000004 | |
561 | #define RDMA_CORE_CAP_IW_CM 0x00000008 | |
562 | #define RDMA_CORE_CAP_IB_SA 0x00000010 | |
65995fee | 563 | #define RDMA_CORE_CAP_OPA_MAD 0x00000020 |
f9b22e35 IW |
564 | |
565 | /* Address format 0x000FF000 */ | |
566 | #define RDMA_CORE_CAP_AF_IB 0x00001000 | |
567 | #define RDMA_CORE_CAP_ETH_AH 0x00002000 | |
94d595c5 | 568 | #define RDMA_CORE_CAP_OPA_AH 0x00004000 |
b02289b3 | 569 | #define RDMA_CORE_CAP_IB_GRH_REQUIRED 0x00008000 |
f9b22e35 IW |
570 | |
571 | /* Protocol 0xFFF00000 */ | |
572 | #define RDMA_CORE_CAP_PROT_IB 0x00100000 | |
573 | #define RDMA_CORE_CAP_PROT_ROCE 0x00200000 | |
574 | #define RDMA_CORE_CAP_PROT_IWARP 0x00400000 | |
7766a99f | 575 | #define RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP 0x00800000 |
aa773bd4 | 576 | #define RDMA_CORE_CAP_PROT_RAW_PACKET 0x01000000 |
ce1e055f | 577 | #define RDMA_CORE_CAP_PROT_USNIC 0x02000000 |
f9b22e35 | 578 | |
b02289b3 AK |
579 | #define RDMA_CORE_PORT_IB_GRH_REQUIRED (RDMA_CORE_CAP_IB_GRH_REQUIRED \ |
580 | | RDMA_CORE_CAP_PROT_ROCE \ | |
581 | | RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP) | |
582 | ||
f9b22e35 IW |
583 | #define RDMA_CORE_PORT_IBA_IB (RDMA_CORE_CAP_PROT_IB \ |
584 | | RDMA_CORE_CAP_IB_MAD \ | |
585 | | RDMA_CORE_CAP_IB_SMI \ | |
586 | | RDMA_CORE_CAP_IB_CM \ | |
587 | | RDMA_CORE_CAP_IB_SA \ | |
588 | | RDMA_CORE_CAP_AF_IB) | |
589 | #define RDMA_CORE_PORT_IBA_ROCE (RDMA_CORE_CAP_PROT_ROCE \ | |
590 | | RDMA_CORE_CAP_IB_MAD \ | |
591 | | RDMA_CORE_CAP_IB_CM \ | |
f9b22e35 IW |
592 | | RDMA_CORE_CAP_AF_IB \ |
593 | | RDMA_CORE_CAP_ETH_AH) | |
7766a99f MB |
594 | #define RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP \ |
595 | (RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP \ | |
596 | | RDMA_CORE_CAP_IB_MAD \ | |
597 | | RDMA_CORE_CAP_IB_CM \ | |
598 | | RDMA_CORE_CAP_AF_IB \ | |
599 | | RDMA_CORE_CAP_ETH_AH) | |
f9b22e35 IW |
600 | #define RDMA_CORE_PORT_IWARP (RDMA_CORE_CAP_PROT_IWARP \ |
601 | | RDMA_CORE_CAP_IW_CM) | |
65995fee IW |
602 | #define RDMA_CORE_PORT_INTEL_OPA (RDMA_CORE_PORT_IBA_IB \ |
603 | | RDMA_CORE_CAP_OPA_MAD) | |
f9b22e35 | 604 | |
aa773bd4 OG |
605 | #define RDMA_CORE_PORT_RAW_PACKET (RDMA_CORE_CAP_PROT_RAW_PACKET) |
606 | ||
ce1e055f OG |
607 | #define RDMA_CORE_PORT_USNIC (RDMA_CORE_CAP_PROT_USNIC) |
608 | ||
1da177e4 | 609 | struct ib_port_attr { |
fad61ad4 | 610 | u64 subnet_prefix; |
1da177e4 LT |
611 | enum ib_port_state state; |
612 | enum ib_mtu max_mtu; | |
613 | enum ib_mtu active_mtu; | |
614 | int gid_tbl_len; | |
2f944c0f JG |
615 | unsigned int ip_gids:1; |
616 | /* This is the value from PortInfo CapabilityMask, defined by IBA */ | |
1da177e4 LT |
617 | u32 port_cap_flags; |
618 | u32 max_msg_sz; | |
619 | u32 bad_pkey_cntr; | |
620 | u32 qkey_viol_cntr; | |
621 | u16 pkey_tbl_len; | |
db58540b | 622 | u32 sm_lid; |
582faf31 | 623 | u32 lid; |
1da177e4 LT |
624 | u8 lmc; |
625 | u8 max_vl_num; | |
626 | u8 sm_sl; | |
627 | u8 subnet_timeout; | |
628 | u8 init_type_reply; | |
629 | u8 active_width; | |
630 | u8 active_speed; | |
631 | u8 phys_state; | |
1e8f43b7 | 632 | u16 port_cap_flags2; |
1da177e4 LT |
633 | }; |
634 | ||
635 | enum ib_device_modify_flags { | |
c5bcbbb9 RD |
636 | IB_DEVICE_MODIFY_SYS_IMAGE_GUID = 1 << 0, |
637 | IB_DEVICE_MODIFY_NODE_DESC = 1 << 1 | |
1da177e4 LT |
638 | }; |
639 | ||
bd99fdea YS |
640 | #define IB_DEVICE_NODE_DESC_MAX 64 |
641 | ||
1da177e4 LT |
642 | struct ib_device_modify { |
643 | u64 sys_image_guid; | |
bd99fdea | 644 | char node_desc[IB_DEVICE_NODE_DESC_MAX]; |
1da177e4 LT |
645 | }; |
646 | ||
647 | enum ib_port_modify_flags { | |
648 | IB_PORT_SHUTDOWN = 1, | |
649 | IB_PORT_INIT_TYPE = (1<<2), | |
cb49366f VN |
650 | IB_PORT_RESET_QKEY_CNTR = (1<<3), |
651 | IB_PORT_OPA_MASK_CHG = (1<<4) | |
1da177e4 LT |
652 | }; |
653 | ||
654 | struct ib_port_modify { | |
655 | u32 set_port_cap_mask; | |
656 | u32 clr_port_cap_mask; | |
657 | u8 init_type; | |
658 | }; | |
659 | ||
660 | enum ib_event_type { | |
661 | IB_EVENT_CQ_ERR, | |
662 | IB_EVENT_QP_FATAL, | |
663 | IB_EVENT_QP_REQ_ERR, | |
664 | IB_EVENT_QP_ACCESS_ERR, | |
665 | IB_EVENT_COMM_EST, | |
666 | IB_EVENT_SQ_DRAINED, | |
667 | IB_EVENT_PATH_MIG, | |
668 | IB_EVENT_PATH_MIG_ERR, | |
669 | IB_EVENT_DEVICE_FATAL, | |
670 | IB_EVENT_PORT_ACTIVE, | |
671 | IB_EVENT_PORT_ERR, | |
672 | IB_EVENT_LID_CHANGE, | |
673 | IB_EVENT_PKEY_CHANGE, | |
d41fcc67 RD |
674 | IB_EVENT_SM_CHANGE, |
675 | IB_EVENT_SRQ_ERR, | |
676 | IB_EVENT_SRQ_LIMIT_REACHED, | |
63942c9a | 677 | IB_EVENT_QP_LAST_WQE_REACHED, |
761d90ed OG |
678 | IB_EVENT_CLIENT_REREGISTER, |
679 | IB_EVENT_GID_CHANGE, | |
f213c052 | 680 | IB_EVENT_WQ_FATAL, |
1da177e4 LT |
681 | }; |
682 | ||
db7489e0 | 683 | const char *__attribute_const__ ib_event_msg(enum ib_event_type event); |
2b1b5b60 | 684 | |
1da177e4 LT |
685 | struct ib_event { |
686 | struct ib_device *device; | |
687 | union { | |
688 | struct ib_cq *cq; | |
689 | struct ib_qp *qp; | |
d41fcc67 | 690 | struct ib_srq *srq; |
f213c052 | 691 | struct ib_wq *wq; |
1da177e4 LT |
692 | u8 port_num; |
693 | } element; | |
694 | enum ib_event_type event; | |
695 | }; | |
696 | ||
697 | struct ib_event_handler { | |
698 | struct ib_device *device; | |
699 | void (*handler)(struct ib_event_handler *, struct ib_event *); | |
700 | struct list_head list; | |
701 | }; | |
702 | ||
703 | #define INIT_IB_EVENT_HANDLER(_ptr, _device, _handler) \ | |
704 | do { \ | |
705 | (_ptr)->device = _device; \ | |
706 | (_ptr)->handler = _handler; \ | |
707 | INIT_LIST_HEAD(&(_ptr)->list); \ | |
708 | } while (0) | |
709 | ||
710 | struct ib_global_route { | |
8d9ec9ad | 711 | const struct ib_gid_attr *sgid_attr; |
1da177e4 LT |
712 | union ib_gid dgid; |
713 | u32 flow_label; | |
714 | u8 sgid_index; | |
715 | u8 hop_limit; | |
716 | u8 traffic_class; | |
717 | }; | |
718 | ||
513789ed | 719 | struct ib_grh { |
97f52eb4 SH |
720 | __be32 version_tclass_flow; |
721 | __be16 paylen; | |
513789ed HR |
722 | u8 next_hdr; |
723 | u8 hop_limit; | |
724 | union ib_gid sgid; | |
725 | union ib_gid dgid; | |
726 | }; | |
727 | ||
c865f246 SK |
728 | union rdma_network_hdr { |
729 | struct ib_grh ibgrh; | |
730 | struct { | |
731 | /* The IB spec states that if it's IPv4, the header | |
732 | * is located in the last 20 bytes of the header. | |
733 | */ | |
734 | u8 reserved[20]; | |
735 | struct iphdr roce4grh; | |
736 | }; | |
737 | }; | |
738 | ||
7dafbab3 DH |
739 | #define IB_QPN_MASK 0xFFFFFF |
740 | ||
1da177e4 LT |
741 | enum { |
742 | IB_MULTICAST_QPN = 0xffffff | |
743 | }; | |
744 | ||
f3a7c66b | 745 | #define IB_LID_PERMISSIVE cpu_to_be16(0xFFFF) |
b4e64397 | 746 | #define IB_MULTICAST_LID_BASE cpu_to_be16(0xC000) |
97f52eb4 | 747 | |
1da177e4 LT |
748 | enum ib_ah_flags { |
749 | IB_AH_GRH = 1 | |
750 | }; | |
751 | ||
bf6a9e31 JM |
752 | enum ib_rate { |
753 | IB_RATE_PORT_CURRENT = 0, | |
754 | IB_RATE_2_5_GBPS = 2, | |
755 | IB_RATE_5_GBPS = 5, | |
756 | IB_RATE_10_GBPS = 3, | |
757 | IB_RATE_20_GBPS = 6, | |
758 | IB_RATE_30_GBPS = 4, | |
759 | IB_RATE_40_GBPS = 7, | |
760 | IB_RATE_60_GBPS = 8, | |
761 | IB_RATE_80_GBPS = 9, | |
71eeba16 MA |
762 | IB_RATE_120_GBPS = 10, |
763 | IB_RATE_14_GBPS = 11, | |
764 | IB_RATE_56_GBPS = 12, | |
765 | IB_RATE_112_GBPS = 13, | |
766 | IB_RATE_168_GBPS = 14, | |
767 | IB_RATE_25_GBPS = 15, | |
768 | IB_RATE_100_GBPS = 16, | |
769 | IB_RATE_200_GBPS = 17, | |
a5a5d199 MG |
770 | IB_RATE_300_GBPS = 18, |
771 | IB_RATE_28_GBPS = 19, | |
772 | IB_RATE_50_GBPS = 20, | |
773 | IB_RATE_400_GBPS = 21, | |
774 | IB_RATE_600_GBPS = 22, | |
bf6a9e31 JM |
775 | }; |
776 | ||
777 | /** | |
778 | * ib_rate_to_mult - Convert the IB rate enum to a multiple of the | |
779 | * base rate of 2.5 Gbit/sec. For example, IB_RATE_5_GBPS will be | |
780 | * converted to 2, since 5 Gbit/sec is 2 * 2.5 Gbit/sec. | |
781 | * @rate: rate to convert. | |
782 | */ | |
8385fd84 | 783 | __attribute_const__ int ib_rate_to_mult(enum ib_rate rate); |
bf6a9e31 | 784 | |
71eeba16 MA |
785 | /** |
786 | * ib_rate_to_mbps - Convert the IB rate enum to Mbps. | |
787 | * For example, IB_RATE_2_5_GBPS will be converted to 2500. | |
788 | * @rate: rate to convert. | |
789 | */ | |
8385fd84 | 790 | __attribute_const__ int ib_rate_to_mbps(enum ib_rate rate); |
71eeba16 | 791 | |
17cd3a2d SG |
792 | |
793 | /** | |
9bee178b SG |
794 | * enum ib_mr_type - memory region type |
795 | * @IB_MR_TYPE_MEM_REG: memory region that is used for | |
796 | * normal registration | |
797 | * @IB_MR_TYPE_SIGNATURE: memory region that is used for | |
798 | * signature operations (data-integrity | |
799 | * capable regions) | |
f5aa9159 SG |
800 | * @IB_MR_TYPE_SG_GAPS: memory region that is capable to |
801 | * register any arbitrary sg lists (without | |
802 | * the normal mr constraints - see | |
803 | * ib_map_mr_sg) | |
17cd3a2d | 804 | */ |
9bee178b SG |
805 | enum ib_mr_type { |
806 | IB_MR_TYPE_MEM_REG, | |
807 | IB_MR_TYPE_SIGNATURE, | |
f5aa9159 | 808 | IB_MR_TYPE_SG_GAPS, |
17cd3a2d SG |
809 | }; |
810 | ||
1b01d335 | 811 | /** |
78eda2bb SG |
812 | * Signature types |
813 | * IB_SIG_TYPE_NONE: Unprotected. | |
814 | * IB_SIG_TYPE_T10_DIF: Type T10-DIF | |
1b01d335 | 815 | */ |
78eda2bb SG |
816 | enum ib_signature_type { |
817 | IB_SIG_TYPE_NONE, | |
818 | IB_SIG_TYPE_T10_DIF, | |
1b01d335 SG |
819 | }; |
820 | ||
821 | /** | |
822 | * Signature T10-DIF block-guard types | |
823 | * IB_T10DIF_CRC: Corresponds to T10-PI mandated CRC checksum rules. | |
824 | * IB_T10DIF_CSUM: Corresponds to IP checksum rules. | |
825 | */ | |
826 | enum ib_t10_dif_bg_type { | |
827 | IB_T10DIF_CRC, | |
828 | IB_T10DIF_CSUM | |
829 | }; | |
830 | ||
831 | /** | |
832 | * struct ib_t10_dif_domain - Parameters specific for T10-DIF | |
833 | * domain. | |
1b01d335 SG |
834 | * @bg_type: T10-DIF block guard type (CRC|CSUM) |
835 | * @pi_interval: protection information interval. | |
836 | * @bg: seed of guard computation. | |
837 | * @app_tag: application tag of guard block | |
838 | * @ref_tag: initial guard block reference tag. | |
78eda2bb SG |
839 | * @ref_remap: Indicate wethear the reftag increments each block |
840 | * @app_escape: Indicate to skip block check if apptag=0xffff | |
841 | * @ref_escape: Indicate to skip block check if reftag=0xffffffff | |
842 | * @apptag_check_mask: check bitmask of application tag. | |
1b01d335 SG |
843 | */ |
844 | struct ib_t10_dif_domain { | |
1b01d335 SG |
845 | enum ib_t10_dif_bg_type bg_type; |
846 | u16 pi_interval; | |
847 | u16 bg; | |
848 | u16 app_tag; | |
849 | u32 ref_tag; | |
78eda2bb SG |
850 | bool ref_remap; |
851 | bool app_escape; | |
852 | bool ref_escape; | |
853 | u16 apptag_check_mask; | |
1b01d335 SG |
854 | }; |
855 | ||
856 | /** | |
857 | * struct ib_sig_domain - Parameters for signature domain | |
858 | * @sig_type: specific signauture type | |
859 | * @sig: union of all signature domain attributes that may | |
860 | * be used to set domain layout. | |
861 | */ | |
862 | struct ib_sig_domain { | |
863 | enum ib_signature_type sig_type; | |
864 | union { | |
865 | struct ib_t10_dif_domain dif; | |
866 | } sig; | |
867 | }; | |
868 | ||
869 | /** | |
870 | * struct ib_sig_attrs - Parameters for signature handover operation | |
871 | * @check_mask: bitmask for signature byte check (8 bytes) | |
872 | * @mem: memory domain layout desciptor. | |
873 | * @wire: wire domain layout desciptor. | |
874 | */ | |
875 | struct ib_sig_attrs { | |
876 | u8 check_mask; | |
877 | struct ib_sig_domain mem; | |
878 | struct ib_sig_domain wire; | |
879 | }; | |
880 | ||
881 | enum ib_sig_err_type { | |
882 | IB_SIG_BAD_GUARD, | |
883 | IB_SIG_BAD_REFTAG, | |
884 | IB_SIG_BAD_APPTAG, | |
885 | }; | |
886 | ||
ca24da00 MG |
887 | /** |
888 | * Signature check masks (8 bytes in total) according to the T10-PI standard: | |
889 | * -------- -------- ------------ | |
890 | * | GUARD | APPTAG | REFTAG | | |
891 | * | 2B | 2B | 4B | | |
892 | * -------- -------- ------------ | |
893 | */ | |
894 | enum { | |
895 | IB_SIG_CHECK_GUARD = 0xc0, | |
896 | IB_SIG_CHECK_APPTAG = 0x30, | |
897 | IB_SIG_CHECK_REFTAG = 0x0f, | |
898 | }; | |
899 | ||
1b01d335 SG |
900 | /** |
901 | * struct ib_sig_err - signature error descriptor | |
902 | */ | |
903 | struct ib_sig_err { | |
904 | enum ib_sig_err_type err_type; | |
905 | u32 expected; | |
906 | u32 actual; | |
907 | u64 sig_err_offset; | |
908 | u32 key; | |
909 | }; | |
910 | ||
911 | enum ib_mr_status_check { | |
912 | IB_MR_CHECK_SIG_STATUS = 1, | |
913 | }; | |
914 | ||
915 | /** | |
916 | * struct ib_mr_status - Memory region status container | |
917 | * | |
918 | * @fail_status: Bitmask of MR checks status. For each | |
919 | * failed check a corresponding status bit is set. | |
920 | * @sig_err: Additional info for IB_MR_CEHCK_SIG_STATUS | |
921 | * failure. | |
922 | */ | |
923 | struct ib_mr_status { | |
924 | u32 fail_status; | |
925 | struct ib_sig_err sig_err; | |
926 | }; | |
927 | ||
bf6a9e31 JM |
928 | /** |
929 | * mult_to_ib_rate - Convert a multiple of 2.5 Gbit/sec to an IB rate | |
930 | * enum. | |
931 | * @mult: multiple to convert. | |
932 | */ | |
8385fd84 | 933 | __attribute_const__ enum ib_rate mult_to_ib_rate(int mult); |
bf6a9e31 | 934 | |
44c58487 | 935 | enum rdma_ah_attr_type { |
87daac68 | 936 | RDMA_AH_ATTR_TYPE_UNDEFINED, |
44c58487 DC |
937 | RDMA_AH_ATTR_TYPE_IB, |
938 | RDMA_AH_ATTR_TYPE_ROCE, | |
64b4646e | 939 | RDMA_AH_ATTR_TYPE_OPA, |
44c58487 DC |
940 | }; |
941 | ||
942 | struct ib_ah_attr { | |
943 | u16 dlid; | |
944 | u8 src_path_bits; | |
945 | }; | |
946 | ||
947 | struct roce_ah_attr { | |
948 | u8 dmac[ETH_ALEN]; | |
949 | }; | |
950 | ||
64b4646e DC |
951 | struct opa_ah_attr { |
952 | u32 dlid; | |
953 | u8 src_path_bits; | |
d98bb7f7 | 954 | bool make_grd; |
64b4646e DC |
955 | }; |
956 | ||
90898850 | 957 | struct rdma_ah_attr { |
1da177e4 | 958 | struct ib_global_route grh; |
1da177e4 | 959 | u8 sl; |
1da177e4 | 960 | u8 static_rate; |
1da177e4 | 961 | u8 port_num; |
44c58487 DC |
962 | u8 ah_flags; |
963 | enum rdma_ah_attr_type type; | |
964 | union { | |
965 | struct ib_ah_attr ib; | |
966 | struct roce_ah_attr roce; | |
64b4646e | 967 | struct opa_ah_attr opa; |
44c58487 | 968 | }; |
1da177e4 LT |
969 | }; |
970 | ||
971 | enum ib_wc_status { | |
972 | IB_WC_SUCCESS, | |
973 | IB_WC_LOC_LEN_ERR, | |
974 | IB_WC_LOC_QP_OP_ERR, | |
975 | IB_WC_LOC_EEC_OP_ERR, | |
976 | IB_WC_LOC_PROT_ERR, | |
977 | IB_WC_WR_FLUSH_ERR, | |
978 | IB_WC_MW_BIND_ERR, | |
979 | IB_WC_BAD_RESP_ERR, | |
980 | IB_WC_LOC_ACCESS_ERR, | |
981 | IB_WC_REM_INV_REQ_ERR, | |
982 | IB_WC_REM_ACCESS_ERR, | |
983 | IB_WC_REM_OP_ERR, | |
984 | IB_WC_RETRY_EXC_ERR, | |
985 | IB_WC_RNR_RETRY_EXC_ERR, | |
986 | IB_WC_LOC_RDD_VIOL_ERR, | |
987 | IB_WC_REM_INV_RD_REQ_ERR, | |
988 | IB_WC_REM_ABORT_ERR, | |
989 | IB_WC_INV_EECN_ERR, | |
990 | IB_WC_INV_EEC_STATE_ERR, | |
991 | IB_WC_FATAL_ERR, | |
992 | IB_WC_RESP_TIMEOUT_ERR, | |
993 | IB_WC_GENERAL_ERR | |
994 | }; | |
995 | ||
db7489e0 | 996 | const char *__attribute_const__ ib_wc_status_msg(enum ib_wc_status status); |
2b1b5b60 | 997 | |
1da177e4 LT |
998 | enum ib_wc_opcode { |
999 | IB_WC_SEND, | |
1000 | IB_WC_RDMA_WRITE, | |
1001 | IB_WC_RDMA_READ, | |
1002 | IB_WC_COMP_SWAP, | |
1003 | IB_WC_FETCH_ADD, | |
c93570f2 | 1004 | IB_WC_LSO, |
00f7ec36 | 1005 | IB_WC_LOCAL_INV, |
4c67e2bf | 1006 | IB_WC_REG_MR, |
5e80ba8f VS |
1007 | IB_WC_MASKED_COMP_SWAP, |
1008 | IB_WC_MASKED_FETCH_ADD, | |
1da177e4 LT |
1009 | /* |
1010 | * Set value of IB_WC_RECV so consumers can test if a completion is a | |
1011 | * receive by testing (opcode & IB_WC_RECV). | |
1012 | */ | |
1013 | IB_WC_RECV = 1 << 7, | |
1014 | IB_WC_RECV_RDMA_WITH_IMM | |
1015 | }; | |
1016 | ||
1017 | enum ib_wc_flags { | |
1018 | IB_WC_GRH = 1, | |
00f7ec36 SW |
1019 | IB_WC_WITH_IMM = (1<<1), |
1020 | IB_WC_WITH_INVALIDATE = (1<<2), | |
d927d505 | 1021 | IB_WC_IP_CSUM_OK = (1<<3), |
dd5f03be MB |
1022 | IB_WC_WITH_SMAC = (1<<4), |
1023 | IB_WC_WITH_VLAN = (1<<5), | |
c865f246 | 1024 | IB_WC_WITH_NETWORK_HDR_TYPE = (1<<6), |
1da177e4 LT |
1025 | }; |
1026 | ||
1027 | struct ib_wc { | |
14d3a3b2 CH |
1028 | union { |
1029 | u64 wr_id; | |
1030 | struct ib_cqe *wr_cqe; | |
1031 | }; | |
1da177e4 LT |
1032 | enum ib_wc_status status; |
1033 | enum ib_wc_opcode opcode; | |
1034 | u32 vendor_err; | |
1035 | u32 byte_len; | |
062dbb69 | 1036 | struct ib_qp *qp; |
00f7ec36 SW |
1037 | union { |
1038 | __be32 imm_data; | |
1039 | u32 invalidate_rkey; | |
1040 | } ex; | |
1da177e4 | 1041 | u32 src_qp; |
cd2a6e7d | 1042 | u32 slid; |
1da177e4 LT |
1043 | int wc_flags; |
1044 | u16 pkey_index; | |
1da177e4 LT |
1045 | u8 sl; |
1046 | u8 dlid_path_bits; | |
1047 | u8 port_num; /* valid only for DR SMPs on switches */ | |
dd5f03be MB |
1048 | u8 smac[ETH_ALEN]; |
1049 | u16 vlan_id; | |
c865f246 | 1050 | u8 network_hdr_type; |
1da177e4 LT |
1051 | }; |
1052 | ||
ed23a727 RD |
1053 | enum ib_cq_notify_flags { |
1054 | IB_CQ_SOLICITED = 1 << 0, | |
1055 | IB_CQ_NEXT_COMP = 1 << 1, | |
1056 | IB_CQ_SOLICITED_MASK = IB_CQ_SOLICITED | IB_CQ_NEXT_COMP, | |
1057 | IB_CQ_REPORT_MISSED_EVENTS = 1 << 2, | |
1da177e4 LT |
1058 | }; |
1059 | ||
96104eda | 1060 | enum ib_srq_type { |
418d5130 | 1061 | IB_SRQT_BASIC, |
9c2c8496 AK |
1062 | IB_SRQT_XRC, |
1063 | IB_SRQT_TM, | |
96104eda SH |
1064 | }; |
1065 | ||
1a56ff6d AK |
1066 | static inline bool ib_srq_has_cq(enum ib_srq_type srq_type) |
1067 | { | |
9c2c8496 AK |
1068 | return srq_type == IB_SRQT_XRC || |
1069 | srq_type == IB_SRQT_TM; | |
1a56ff6d AK |
1070 | } |
1071 | ||
d41fcc67 RD |
1072 | enum ib_srq_attr_mask { |
1073 | IB_SRQ_MAX_WR = 1 << 0, | |
1074 | IB_SRQ_LIMIT = 1 << 1, | |
1075 | }; | |
1076 | ||
1077 | struct ib_srq_attr { | |
1078 | u32 max_wr; | |
1079 | u32 max_sge; | |
1080 | u32 srq_limit; | |
1081 | }; | |
1082 | ||
1083 | struct ib_srq_init_attr { | |
1084 | void (*event_handler)(struct ib_event *, void *); | |
1085 | void *srq_context; | |
1086 | struct ib_srq_attr attr; | |
96104eda | 1087 | enum ib_srq_type srq_type; |
418d5130 | 1088 | |
1a56ff6d AK |
1089 | struct { |
1090 | struct ib_cq *cq; | |
1091 | union { | |
1092 | struct { | |
1093 | struct ib_xrcd *xrcd; | |
1094 | } xrc; | |
9c2c8496 AK |
1095 | |
1096 | struct { | |
1097 | u32 max_num_tags; | |
1098 | } tag_matching; | |
1a56ff6d | 1099 | }; |
418d5130 | 1100 | } ext; |
d41fcc67 RD |
1101 | }; |
1102 | ||
1da177e4 LT |
1103 | struct ib_qp_cap { |
1104 | u32 max_send_wr; | |
1105 | u32 max_recv_wr; | |
1106 | u32 max_send_sge; | |
1107 | u32 max_recv_sge; | |
1108 | u32 max_inline_data; | |
a060b562 CH |
1109 | |
1110 | /* | |
1111 | * Maximum number of rdma_rw_ctx structures in flight at a time. | |
1112 | * ib_create_qp() will calculate the right amount of neededed WRs | |
1113 | * and MRs based on this. | |
1114 | */ | |
1115 | u32 max_rdma_ctxs; | |
1da177e4 LT |
1116 | }; |
1117 | ||
1118 | enum ib_sig_type { | |
1119 | IB_SIGNAL_ALL_WR, | |
1120 | IB_SIGNAL_REQ_WR | |
1121 | }; | |
1122 | ||
1123 | enum ib_qp_type { | |
1124 | /* | |
1125 | * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries | |
1126 | * here (and in that order) since the MAD layer uses them as | |
1127 | * indices into a 2-entry table. | |
1128 | */ | |
1129 | IB_QPT_SMI, | |
1130 | IB_QPT_GSI, | |
1131 | ||
1132 | IB_QPT_RC, | |
1133 | IB_QPT_UC, | |
1134 | IB_QPT_UD, | |
1135 | IB_QPT_RAW_IPV6, | |
b42b63cf | 1136 | IB_QPT_RAW_ETHERTYPE, |
c938a616 | 1137 | IB_QPT_RAW_PACKET = 8, |
b42b63cf SH |
1138 | IB_QPT_XRC_INI = 9, |
1139 | IB_QPT_XRC_TGT, | |
0134f16b | 1140 | IB_QPT_MAX, |
8011c1e3 | 1141 | IB_QPT_DRIVER = 0xFF, |
0134f16b JM |
1142 | /* Reserve a range for qp types internal to the low level driver. |
1143 | * These qp types will not be visible at the IB core layer, so the | |
1144 | * IB_QPT_MAX usages should not be affected in the core layer | |
1145 | */ | |
1146 | IB_QPT_RESERVED1 = 0x1000, | |
1147 | IB_QPT_RESERVED2, | |
1148 | IB_QPT_RESERVED3, | |
1149 | IB_QPT_RESERVED4, | |
1150 | IB_QPT_RESERVED5, | |
1151 | IB_QPT_RESERVED6, | |
1152 | IB_QPT_RESERVED7, | |
1153 | IB_QPT_RESERVED8, | |
1154 | IB_QPT_RESERVED9, | |
1155 | IB_QPT_RESERVED10, | |
1da177e4 LT |
1156 | }; |
1157 | ||
b846f25a | 1158 | enum ib_qp_create_flags { |
47ee1b9f RL |
1159 | IB_QP_CREATE_IPOIB_UD_LSO = 1 << 0, |
1160 | IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK = 1 << 1, | |
8a06ce59 LR |
1161 | IB_QP_CREATE_CROSS_CHANNEL = 1 << 2, |
1162 | IB_QP_CREATE_MANAGED_SEND = 1 << 3, | |
1163 | IB_QP_CREATE_MANAGED_RECV = 1 << 4, | |
90f1d1b4 | 1164 | IB_QP_CREATE_NETIF_QP = 1 << 5, |
1b01d335 | 1165 | IB_QP_CREATE_SIGNATURE_EN = 1 << 6, |
7855f584 | 1166 | /* FREE = 1 << 7, */ |
b531b909 | 1167 | IB_QP_CREATE_SCATTER_FCS = 1 << 8, |
9c2b270e | 1168 | IB_QP_CREATE_CVLAN_STRIPPING = 1 << 9, |
02984cc7 | 1169 | IB_QP_CREATE_SOURCE_QPN = 1 << 10, |
e1d2e887 | 1170 | IB_QP_CREATE_PCI_WRITE_END_PADDING = 1 << 11, |
d2b57063 JM |
1171 | /* reserve bits 26-31 for low level drivers' internal use */ |
1172 | IB_QP_CREATE_RESERVED_START = 1 << 26, | |
1173 | IB_QP_CREATE_RESERVED_END = 1 << 31, | |
b846f25a EC |
1174 | }; |
1175 | ||
73c40c61 YH |
1176 | /* |
1177 | * Note: users may not call ib_close_qp or ib_destroy_qp from the event_handler | |
1178 | * callback to destroy the passed in QP. | |
1179 | */ | |
1180 | ||
1da177e4 | 1181 | struct ib_qp_init_attr { |
eb93c82e | 1182 | /* Consumer's event_handler callback must not block */ |
1da177e4 | 1183 | void (*event_handler)(struct ib_event *, void *); |
eb93c82e | 1184 | |
1da177e4 LT |
1185 | void *qp_context; |
1186 | struct ib_cq *send_cq; | |
1187 | struct ib_cq *recv_cq; | |
1188 | struct ib_srq *srq; | |
b42b63cf | 1189 | struct ib_xrcd *xrcd; /* XRC TGT QPs only */ |
1da177e4 LT |
1190 | struct ib_qp_cap cap; |
1191 | enum ib_sig_type sq_sig_type; | |
1192 | enum ib_qp_type qp_type; | |
b56511c1 | 1193 | u32 create_flags; |
a060b562 CH |
1194 | |
1195 | /* | |
1196 | * Only needed for special QP types, or when using the RW API. | |
1197 | */ | |
1198 | u8 port_num; | |
a9017e23 | 1199 | struct ib_rwq_ind_table *rwq_ind_tbl; |
02984cc7 | 1200 | u32 source_qpn; |
1da177e4 LT |
1201 | }; |
1202 | ||
0e0ec7e0 SH |
1203 | struct ib_qp_open_attr { |
1204 | void (*event_handler)(struct ib_event *, void *); | |
1205 | void *qp_context; | |
1206 | u32 qp_num; | |
1207 | enum ib_qp_type qp_type; | |
1208 | }; | |
1209 | ||
1da177e4 LT |
1210 | enum ib_rnr_timeout { |
1211 | IB_RNR_TIMER_655_36 = 0, | |
1212 | IB_RNR_TIMER_000_01 = 1, | |
1213 | IB_RNR_TIMER_000_02 = 2, | |
1214 | IB_RNR_TIMER_000_03 = 3, | |
1215 | IB_RNR_TIMER_000_04 = 4, | |
1216 | IB_RNR_TIMER_000_06 = 5, | |
1217 | IB_RNR_TIMER_000_08 = 6, | |
1218 | IB_RNR_TIMER_000_12 = 7, | |
1219 | IB_RNR_TIMER_000_16 = 8, | |
1220 | IB_RNR_TIMER_000_24 = 9, | |
1221 | IB_RNR_TIMER_000_32 = 10, | |
1222 | IB_RNR_TIMER_000_48 = 11, | |
1223 | IB_RNR_TIMER_000_64 = 12, | |
1224 | IB_RNR_TIMER_000_96 = 13, | |
1225 | IB_RNR_TIMER_001_28 = 14, | |
1226 | IB_RNR_TIMER_001_92 = 15, | |
1227 | IB_RNR_TIMER_002_56 = 16, | |
1228 | IB_RNR_TIMER_003_84 = 17, | |
1229 | IB_RNR_TIMER_005_12 = 18, | |
1230 | IB_RNR_TIMER_007_68 = 19, | |
1231 | IB_RNR_TIMER_010_24 = 20, | |
1232 | IB_RNR_TIMER_015_36 = 21, | |
1233 | IB_RNR_TIMER_020_48 = 22, | |
1234 | IB_RNR_TIMER_030_72 = 23, | |
1235 | IB_RNR_TIMER_040_96 = 24, | |
1236 | IB_RNR_TIMER_061_44 = 25, | |
1237 | IB_RNR_TIMER_081_92 = 26, | |
1238 | IB_RNR_TIMER_122_88 = 27, | |
1239 | IB_RNR_TIMER_163_84 = 28, | |
1240 | IB_RNR_TIMER_245_76 = 29, | |
1241 | IB_RNR_TIMER_327_68 = 30, | |
1242 | IB_RNR_TIMER_491_52 = 31 | |
1243 | }; | |
1244 | ||
1245 | enum ib_qp_attr_mask { | |
1246 | IB_QP_STATE = 1, | |
1247 | IB_QP_CUR_STATE = (1<<1), | |
1248 | IB_QP_EN_SQD_ASYNC_NOTIFY = (1<<2), | |
1249 | IB_QP_ACCESS_FLAGS = (1<<3), | |
1250 | IB_QP_PKEY_INDEX = (1<<4), | |
1251 | IB_QP_PORT = (1<<5), | |
1252 | IB_QP_QKEY = (1<<6), | |
1253 | IB_QP_AV = (1<<7), | |
1254 | IB_QP_PATH_MTU = (1<<8), | |
1255 | IB_QP_TIMEOUT = (1<<9), | |
1256 | IB_QP_RETRY_CNT = (1<<10), | |
1257 | IB_QP_RNR_RETRY = (1<<11), | |
1258 | IB_QP_RQ_PSN = (1<<12), | |
1259 | IB_QP_MAX_QP_RD_ATOMIC = (1<<13), | |
1260 | IB_QP_ALT_PATH = (1<<14), | |
1261 | IB_QP_MIN_RNR_TIMER = (1<<15), | |
1262 | IB_QP_SQ_PSN = (1<<16), | |
1263 | IB_QP_MAX_DEST_RD_ATOMIC = (1<<17), | |
1264 | IB_QP_PATH_MIG_STATE = (1<<18), | |
1265 | IB_QP_CAP = (1<<19), | |
dd5f03be | 1266 | IB_QP_DEST_QPN = (1<<20), |
aa744cc0 MB |
1267 | IB_QP_RESERVED1 = (1<<21), |
1268 | IB_QP_RESERVED2 = (1<<22), | |
1269 | IB_QP_RESERVED3 = (1<<23), | |
1270 | IB_QP_RESERVED4 = (1<<24), | |
528e5a1b | 1271 | IB_QP_RATE_LIMIT = (1<<25), |
1da177e4 LT |
1272 | }; |
1273 | ||
1274 | enum ib_qp_state { | |
1275 | IB_QPS_RESET, | |
1276 | IB_QPS_INIT, | |
1277 | IB_QPS_RTR, | |
1278 | IB_QPS_RTS, | |
1279 | IB_QPS_SQD, | |
1280 | IB_QPS_SQE, | |
1281 | IB_QPS_ERR | |
1282 | }; | |
1283 | ||
1284 | enum ib_mig_state { | |
1285 | IB_MIG_MIGRATED, | |
1286 | IB_MIG_REARM, | |
1287 | IB_MIG_ARMED | |
1288 | }; | |
1289 | ||
7083e42e SM |
1290 | enum ib_mw_type { |
1291 | IB_MW_TYPE_1 = 1, | |
1292 | IB_MW_TYPE_2 = 2 | |
1293 | }; | |
1294 | ||
1da177e4 LT |
1295 | struct ib_qp_attr { |
1296 | enum ib_qp_state qp_state; | |
1297 | enum ib_qp_state cur_qp_state; | |
1298 | enum ib_mtu path_mtu; | |
1299 | enum ib_mig_state path_mig_state; | |
1300 | u32 qkey; | |
1301 | u32 rq_psn; | |
1302 | u32 sq_psn; | |
1303 | u32 dest_qp_num; | |
1304 | int qp_access_flags; | |
1305 | struct ib_qp_cap cap; | |
90898850 DC |
1306 | struct rdma_ah_attr ah_attr; |
1307 | struct rdma_ah_attr alt_ah_attr; | |
1da177e4 LT |
1308 | u16 pkey_index; |
1309 | u16 alt_pkey_index; | |
1310 | u8 en_sqd_async_notify; | |
1311 | u8 sq_draining; | |
1312 | u8 max_rd_atomic; | |
1313 | u8 max_dest_rd_atomic; | |
1314 | u8 min_rnr_timer; | |
1315 | u8 port_num; | |
1316 | u8 timeout; | |
1317 | u8 retry_cnt; | |
1318 | u8 rnr_retry; | |
1319 | u8 alt_port_num; | |
1320 | u8 alt_timeout; | |
528e5a1b | 1321 | u32 rate_limit; |
1da177e4 LT |
1322 | }; |
1323 | ||
1324 | enum ib_wr_opcode { | |
9a59739b JG |
1325 | /* These are shared with userspace */ |
1326 | IB_WR_RDMA_WRITE = IB_UVERBS_WR_RDMA_WRITE, | |
1327 | IB_WR_RDMA_WRITE_WITH_IMM = IB_UVERBS_WR_RDMA_WRITE_WITH_IMM, | |
1328 | IB_WR_SEND = IB_UVERBS_WR_SEND, | |
1329 | IB_WR_SEND_WITH_IMM = IB_UVERBS_WR_SEND_WITH_IMM, | |
1330 | IB_WR_RDMA_READ = IB_UVERBS_WR_RDMA_READ, | |
1331 | IB_WR_ATOMIC_CMP_AND_SWP = IB_UVERBS_WR_ATOMIC_CMP_AND_SWP, | |
1332 | IB_WR_ATOMIC_FETCH_AND_ADD = IB_UVERBS_WR_ATOMIC_FETCH_AND_ADD, | |
1333 | IB_WR_LSO = IB_UVERBS_WR_TSO, | |
1334 | IB_WR_SEND_WITH_INV = IB_UVERBS_WR_SEND_WITH_INV, | |
1335 | IB_WR_RDMA_READ_WITH_INV = IB_UVERBS_WR_RDMA_READ_WITH_INV, | |
1336 | IB_WR_LOCAL_INV = IB_UVERBS_WR_LOCAL_INV, | |
1337 | IB_WR_MASKED_ATOMIC_CMP_AND_SWP = | |
1338 | IB_UVERBS_WR_MASKED_ATOMIC_CMP_AND_SWP, | |
1339 | IB_WR_MASKED_ATOMIC_FETCH_AND_ADD = | |
1340 | IB_UVERBS_WR_MASKED_ATOMIC_FETCH_AND_ADD, | |
1341 | ||
1342 | /* These are kernel only and can not be issued by userspace */ | |
1343 | IB_WR_REG_MR = 0x20, | |
1b01d335 | 1344 | IB_WR_REG_SIG_MR, |
9a59739b | 1345 | |
0134f16b JM |
1346 | /* reserve values for low level drivers' internal use. |
1347 | * These values will not be used at all in the ib core layer. | |
1348 | */ | |
1349 | IB_WR_RESERVED1 = 0xf0, | |
1350 | IB_WR_RESERVED2, | |
1351 | IB_WR_RESERVED3, | |
1352 | IB_WR_RESERVED4, | |
1353 | IB_WR_RESERVED5, | |
1354 | IB_WR_RESERVED6, | |
1355 | IB_WR_RESERVED7, | |
1356 | IB_WR_RESERVED8, | |
1357 | IB_WR_RESERVED9, | |
1358 | IB_WR_RESERVED10, | |
1da177e4 LT |
1359 | }; |
1360 | ||
1361 | enum ib_send_flags { | |
1362 | IB_SEND_FENCE = 1, | |
1363 | IB_SEND_SIGNALED = (1<<1), | |
1364 | IB_SEND_SOLICITED = (1<<2), | |
e0605d91 | 1365 | IB_SEND_INLINE = (1<<3), |
0134f16b JM |
1366 | IB_SEND_IP_CSUM = (1<<4), |
1367 | ||
1368 | /* reserve bits 26-31 for low level drivers' internal use */ | |
1369 | IB_SEND_RESERVED_START = (1 << 26), | |
1370 | IB_SEND_RESERVED_END = (1 << 31), | |
1da177e4 LT |
1371 | }; |
1372 | ||
1373 | struct ib_sge { | |
1374 | u64 addr; | |
1375 | u32 length; | |
1376 | u32 lkey; | |
1377 | }; | |
1378 | ||
14d3a3b2 CH |
1379 | struct ib_cqe { |
1380 | void (*done)(struct ib_cq *cq, struct ib_wc *wc); | |
1381 | }; | |
1382 | ||
1da177e4 LT |
1383 | struct ib_send_wr { |
1384 | struct ib_send_wr *next; | |
14d3a3b2 CH |
1385 | union { |
1386 | u64 wr_id; | |
1387 | struct ib_cqe *wr_cqe; | |
1388 | }; | |
1da177e4 LT |
1389 | struct ib_sge *sg_list; |
1390 | int num_sge; | |
1391 | enum ib_wr_opcode opcode; | |
1392 | int send_flags; | |
0f39cf3d RD |
1393 | union { |
1394 | __be32 imm_data; | |
1395 | u32 invalidate_rkey; | |
1396 | } ex; | |
1da177e4 LT |
1397 | }; |
1398 | ||
e622f2f4 CH |
1399 | struct ib_rdma_wr { |
1400 | struct ib_send_wr wr; | |
1401 | u64 remote_addr; | |
1402 | u32 rkey; | |
1403 | }; | |
1404 | ||
f696bf6d | 1405 | static inline const struct ib_rdma_wr *rdma_wr(const struct ib_send_wr *wr) |
e622f2f4 CH |
1406 | { |
1407 | return container_of(wr, struct ib_rdma_wr, wr); | |
1408 | } | |
1409 | ||
1410 | struct ib_atomic_wr { | |
1411 | struct ib_send_wr wr; | |
1412 | u64 remote_addr; | |
1413 | u64 compare_add; | |
1414 | u64 swap; | |
1415 | u64 compare_add_mask; | |
1416 | u64 swap_mask; | |
1417 | u32 rkey; | |
1418 | }; | |
1419 | ||
f696bf6d | 1420 | static inline const struct ib_atomic_wr *atomic_wr(const struct ib_send_wr *wr) |
e622f2f4 CH |
1421 | { |
1422 | return container_of(wr, struct ib_atomic_wr, wr); | |
1423 | } | |
1424 | ||
1425 | struct ib_ud_wr { | |
1426 | struct ib_send_wr wr; | |
1427 | struct ib_ah *ah; | |
1428 | void *header; | |
1429 | int hlen; | |
1430 | int mss; | |
1431 | u32 remote_qpn; | |
1432 | u32 remote_qkey; | |
1433 | u16 pkey_index; /* valid for GSI only */ | |
1434 | u8 port_num; /* valid for DR SMPs on switch only */ | |
1435 | }; | |
1436 | ||
f696bf6d | 1437 | static inline const struct ib_ud_wr *ud_wr(const struct ib_send_wr *wr) |
e622f2f4 CH |
1438 | { |
1439 | return container_of(wr, struct ib_ud_wr, wr); | |
1440 | } | |
1441 | ||
4c67e2bf SG |
1442 | struct ib_reg_wr { |
1443 | struct ib_send_wr wr; | |
1444 | struct ib_mr *mr; | |
1445 | u32 key; | |
1446 | int access; | |
1447 | }; | |
1448 | ||
f696bf6d | 1449 | static inline const struct ib_reg_wr *reg_wr(const struct ib_send_wr *wr) |
4c67e2bf SG |
1450 | { |
1451 | return container_of(wr, struct ib_reg_wr, wr); | |
1452 | } | |
1453 | ||
e622f2f4 CH |
1454 | struct ib_sig_handover_wr { |
1455 | struct ib_send_wr wr; | |
1456 | struct ib_sig_attrs *sig_attrs; | |
1457 | struct ib_mr *sig_mr; | |
1458 | int access_flags; | |
1459 | struct ib_sge *prot; | |
1460 | }; | |
1461 | ||
f696bf6d BVA |
1462 | static inline const struct ib_sig_handover_wr * |
1463 | sig_handover_wr(const struct ib_send_wr *wr) | |
e622f2f4 CH |
1464 | { |
1465 | return container_of(wr, struct ib_sig_handover_wr, wr); | |
1466 | } | |
1467 | ||
1da177e4 LT |
1468 | struct ib_recv_wr { |
1469 | struct ib_recv_wr *next; | |
14d3a3b2 CH |
1470 | union { |
1471 | u64 wr_id; | |
1472 | struct ib_cqe *wr_cqe; | |
1473 | }; | |
1da177e4 LT |
1474 | struct ib_sge *sg_list; |
1475 | int num_sge; | |
1476 | }; | |
1477 | ||
1478 | enum ib_access_flags { | |
4fca0377 JG |
1479 | IB_ACCESS_LOCAL_WRITE = IB_UVERBS_ACCESS_LOCAL_WRITE, |
1480 | IB_ACCESS_REMOTE_WRITE = IB_UVERBS_ACCESS_REMOTE_WRITE, | |
1481 | IB_ACCESS_REMOTE_READ = IB_UVERBS_ACCESS_REMOTE_READ, | |
1482 | IB_ACCESS_REMOTE_ATOMIC = IB_UVERBS_ACCESS_REMOTE_ATOMIC, | |
1483 | IB_ACCESS_MW_BIND = IB_UVERBS_ACCESS_MW_BIND, | |
1484 | IB_ZERO_BASED = IB_UVERBS_ACCESS_ZERO_BASED, | |
1485 | IB_ACCESS_ON_DEMAND = IB_UVERBS_ACCESS_ON_DEMAND, | |
1486 | IB_ACCESS_HUGETLB = IB_UVERBS_ACCESS_HUGETLB, | |
1487 | ||
1488 | IB_ACCESS_SUPPORTED = ((IB_ACCESS_HUGETLB << 1) - 1) | |
1da177e4 LT |
1489 | }; |
1490 | ||
b7d3e0a9 CH |
1491 | /* |
1492 | * XXX: these are apparently used for ->rereg_user_mr, no idea why they | |
1493 | * are hidden here instead of a uapi header! | |
1494 | */ | |
1da177e4 LT |
1495 | enum ib_mr_rereg_flags { |
1496 | IB_MR_REREG_TRANS = 1, | |
1497 | IB_MR_REREG_PD = (1<<1), | |
7e6edb9b MB |
1498 | IB_MR_REREG_ACCESS = (1<<2), |
1499 | IB_MR_REREG_SUPPORTED = ((IB_MR_REREG_ACCESS << 1) - 1) | |
1da177e4 LT |
1500 | }; |
1501 | ||
1da177e4 LT |
1502 | struct ib_fmr_attr { |
1503 | int max_pages; | |
1504 | int max_maps; | |
d36f34aa | 1505 | u8 page_shift; |
1da177e4 LT |
1506 | }; |
1507 | ||
882214e2 HE |
1508 | struct ib_umem; |
1509 | ||
38321256 | 1510 | enum rdma_remove_reason { |
1c77483e YH |
1511 | /* |
1512 | * Userspace requested uobject deletion or initial try | |
1513 | * to remove uobject via cleanup. Call could fail | |
1514 | */ | |
38321256 MB |
1515 | RDMA_REMOVE_DESTROY, |
1516 | /* Context deletion. This call should delete the actual object itself */ | |
1517 | RDMA_REMOVE_CLOSE, | |
1518 | /* Driver is being hot-unplugged. This call should delete the actual object itself */ | |
1519 | RDMA_REMOVE_DRIVER_REMOVE, | |
87ad80ab JG |
1520 | /* uobj is being cleaned-up before being committed */ |
1521 | RDMA_REMOVE_ABORT, | |
38321256 MB |
1522 | }; |
1523 | ||
43579b5f PP |
1524 | struct ib_rdmacg_object { |
1525 | #ifdef CONFIG_CGROUP_RDMA | |
1526 | struct rdma_cgroup *cg; /* owner rdma cgroup */ | |
1527 | #endif | |
1528 | }; | |
1529 | ||
e2773c06 RD |
1530 | struct ib_ucontext { |
1531 | struct ib_device *device; | |
771addf6 | 1532 | struct ib_uverbs_file *ufile; |
e951747a JG |
1533 | /* |
1534 | * 'closing' can be read by the driver only during a destroy callback, | |
1535 | * it is set when we are closing the file descriptor and indicates | |
1536 | * that mm_sem may be locked. | |
1537 | */ | |
6ceb6331 | 1538 | bool closing; |
8ada2c1c | 1539 | |
1c77483e | 1540 | bool cleanup_retryable; |
38321256 | 1541 | |
b5231b01 | 1542 | void (*invalidate_range)(struct ib_umem_odp *umem_odp, |
882214e2 | 1543 | unsigned long start, unsigned long end); |
f27a0d50 JG |
1544 | struct mutex per_mm_list_lock; |
1545 | struct list_head per_mm_list; | |
43579b5f PP |
1546 | |
1547 | struct ib_rdmacg_object cg_obj; | |
60615210 LR |
1548 | /* |
1549 | * Implementation details of the RDMA core, don't use in drivers: | |
1550 | */ | |
1551 | struct rdma_restrack_entry res; | |
e2773c06 RD |
1552 | }; |
1553 | ||
1554 | struct ib_uobject { | |
1555 | u64 user_handle; /* handle given to us by userspace */ | |
6a5e9c88 JG |
1556 | /* ufile & ucontext owning this object */ |
1557 | struct ib_uverbs_file *ufile; | |
1558 | /* FIXME, save memory: ufile->context == context */ | |
e2773c06 | 1559 | struct ib_ucontext *context; /* associated user context */ |
9ead190b | 1560 | void *object; /* containing object */ |
e2773c06 | 1561 | struct list_head list; /* link to context's list */ |
43579b5f | 1562 | struct ib_rdmacg_object cg_obj; /* rdmacg object */ |
b3d636b0 | 1563 | int id; /* index into kernel idr */ |
9ead190b | 1564 | struct kref ref; |
38321256 | 1565 | atomic_t usecnt; /* protects exclusive access */ |
d144da8c | 1566 | struct rcu_head rcu; /* kfree_rcu() overhead */ |
38321256 | 1567 | |
6b0d08f4 | 1568 | const struct uverbs_api_object *uapi_object; |
e2773c06 RD |
1569 | }; |
1570 | ||
e2773c06 | 1571 | struct ib_udata { |
309243ec | 1572 | const void __user *inbuf; |
e2773c06 RD |
1573 | void __user *outbuf; |
1574 | size_t inlen; | |
1575 | size_t outlen; | |
1576 | }; | |
1577 | ||
1da177e4 | 1578 | struct ib_pd { |
96249d70 | 1579 | u32 local_dma_lkey; |
ed082d36 | 1580 | u32 flags; |
e2773c06 RD |
1581 | struct ib_device *device; |
1582 | struct ib_uobject *uobject; | |
1583 | atomic_t usecnt; /* count all resources */ | |
50d46335 | 1584 | |
ed082d36 CH |
1585 | u32 unsafe_global_rkey; |
1586 | ||
50d46335 CH |
1587 | /* |
1588 | * Implementation details of the RDMA core, don't use in drivers: | |
1589 | */ | |
1590 | struct ib_mr *__internal_mr; | |
02d8883f | 1591 | struct rdma_restrack_entry res; |
1da177e4 LT |
1592 | }; |
1593 | ||
59991f94 SH |
1594 | struct ib_xrcd { |
1595 | struct ib_device *device; | |
d3d72d90 | 1596 | atomic_t usecnt; /* count all exposed resources */ |
53d0bd1e | 1597 | struct inode *inode; |
d3d72d90 SH |
1598 | |
1599 | struct mutex tgt_qp_mutex; | |
1600 | struct list_head tgt_qp_list; | |
59991f94 SH |
1601 | }; |
1602 | ||
1da177e4 LT |
1603 | struct ib_ah { |
1604 | struct ib_device *device; | |
1605 | struct ib_pd *pd; | |
e2773c06 | 1606 | struct ib_uobject *uobject; |
1a1f460f | 1607 | const struct ib_gid_attr *sgid_attr; |
44c58487 | 1608 | enum rdma_ah_attr_type type; |
1da177e4 LT |
1609 | }; |
1610 | ||
1611 | typedef void (*ib_comp_handler)(struct ib_cq *cq, void *cq_context); | |
1612 | ||
14d3a3b2 | 1613 | enum ib_poll_context { |
f794809a JM |
1614 | IB_POLL_DIRECT, /* caller context, no hw completions */ |
1615 | IB_POLL_SOFTIRQ, /* poll from softirq context */ | |
1616 | IB_POLL_WORKQUEUE, /* poll from workqueue */ | |
1617 | IB_POLL_UNBOUND_WORKQUEUE, /* poll from unbound workqueue */ | |
14d3a3b2 CH |
1618 | }; |
1619 | ||
1da177e4 | 1620 | struct ib_cq { |
e2773c06 RD |
1621 | struct ib_device *device; |
1622 | struct ib_uobject *uobject; | |
1623 | ib_comp_handler comp_handler; | |
1624 | void (*event_handler)(struct ib_event *, void *); | |
4deccd6d | 1625 | void *cq_context; |
e2773c06 RD |
1626 | int cqe; |
1627 | atomic_t usecnt; /* count number of work queues */ | |
14d3a3b2 CH |
1628 | enum ib_poll_context poll_ctx; |
1629 | struct ib_wc *wc; | |
1630 | union { | |
1631 | struct irq_poll iop; | |
1632 | struct work_struct work; | |
1633 | }; | |
f794809a | 1634 | struct workqueue_struct *comp_wq; |
02d8883f LR |
1635 | /* |
1636 | * Implementation details of the RDMA core, don't use in drivers: | |
1637 | */ | |
1638 | struct rdma_restrack_entry res; | |
1da177e4 LT |
1639 | }; |
1640 | ||
1641 | struct ib_srq { | |
d41fcc67 RD |
1642 | struct ib_device *device; |
1643 | struct ib_pd *pd; | |
1644 | struct ib_uobject *uobject; | |
1645 | void (*event_handler)(struct ib_event *, void *); | |
1646 | void *srq_context; | |
96104eda | 1647 | enum ib_srq_type srq_type; |
1da177e4 | 1648 | atomic_t usecnt; |
418d5130 | 1649 | |
1a56ff6d AK |
1650 | struct { |
1651 | struct ib_cq *cq; | |
1652 | union { | |
1653 | struct { | |
1654 | struct ib_xrcd *xrcd; | |
1655 | u32 srq_num; | |
1656 | } xrc; | |
1657 | }; | |
418d5130 | 1658 | } ext; |
1da177e4 LT |
1659 | }; |
1660 | ||
ebaaee25 NO |
1661 | enum ib_raw_packet_caps { |
1662 | /* Strip cvlan from incoming packet and report it in the matching work | |
1663 | * completion is supported. | |
1664 | */ | |
1665 | IB_RAW_PACKET_CAP_CVLAN_STRIPPING = (1 << 0), | |
1666 | /* Scatter FCS field of an incoming packet to host memory is supported. | |
1667 | */ | |
1668 | IB_RAW_PACKET_CAP_SCATTER_FCS = (1 << 1), | |
1669 | /* Checksum offloads are supported (for both send and receive). */ | |
1670 | IB_RAW_PACKET_CAP_IP_CSUM = (1 << 2), | |
7d9336d8 MG |
1671 | /* When a packet is received for an RQ with no receive WQEs, the |
1672 | * packet processing is delayed. | |
1673 | */ | |
1674 | IB_RAW_PACKET_CAP_DELAY_DROP = (1 << 3), | |
ebaaee25 NO |
1675 | }; |
1676 | ||
5fd251c8 YH |
1677 | enum ib_wq_type { |
1678 | IB_WQT_RQ | |
1679 | }; | |
1680 | ||
1681 | enum ib_wq_state { | |
1682 | IB_WQS_RESET, | |
1683 | IB_WQS_RDY, | |
1684 | IB_WQS_ERR | |
1685 | }; | |
1686 | ||
1687 | struct ib_wq { | |
1688 | struct ib_device *device; | |
1689 | struct ib_uobject *uobject; | |
1690 | void *wq_context; | |
1691 | void (*event_handler)(struct ib_event *, void *); | |
1692 | struct ib_pd *pd; | |
1693 | struct ib_cq *cq; | |
1694 | u32 wq_num; | |
1695 | enum ib_wq_state state; | |
1696 | enum ib_wq_type wq_type; | |
1697 | atomic_t usecnt; | |
1698 | }; | |
1699 | ||
10bac72b NO |
1700 | enum ib_wq_flags { |
1701 | IB_WQ_FLAGS_CVLAN_STRIPPING = 1 << 0, | |
27b0df11 | 1702 | IB_WQ_FLAGS_SCATTER_FCS = 1 << 1, |
7d9336d8 | 1703 | IB_WQ_FLAGS_DELAY_DROP = 1 << 2, |
e1d2e887 | 1704 | IB_WQ_FLAGS_PCI_WRITE_END_PADDING = 1 << 3, |
10bac72b NO |
1705 | }; |
1706 | ||
5fd251c8 YH |
1707 | struct ib_wq_init_attr { |
1708 | void *wq_context; | |
1709 | enum ib_wq_type wq_type; | |
1710 | u32 max_wr; | |
1711 | u32 max_sge; | |
1712 | struct ib_cq *cq; | |
1713 | void (*event_handler)(struct ib_event *, void *); | |
10bac72b | 1714 | u32 create_flags; /* Use enum ib_wq_flags */ |
5fd251c8 YH |
1715 | }; |
1716 | ||
1717 | enum ib_wq_attr_mask { | |
10bac72b NO |
1718 | IB_WQ_STATE = 1 << 0, |
1719 | IB_WQ_CUR_STATE = 1 << 1, | |
1720 | IB_WQ_FLAGS = 1 << 2, | |
5fd251c8 YH |
1721 | }; |
1722 | ||
1723 | struct ib_wq_attr { | |
1724 | enum ib_wq_state wq_state; | |
1725 | enum ib_wq_state curr_wq_state; | |
10bac72b NO |
1726 | u32 flags; /* Use enum ib_wq_flags */ |
1727 | u32 flags_mask; /* Use enum ib_wq_flags */ | |
5fd251c8 YH |
1728 | }; |
1729 | ||
6d39786b YH |
1730 | struct ib_rwq_ind_table { |
1731 | struct ib_device *device; | |
1732 | struct ib_uobject *uobject; | |
1733 | atomic_t usecnt; | |
1734 | u32 ind_tbl_num; | |
1735 | u32 log_ind_tbl_size; | |
1736 | struct ib_wq **ind_tbl; | |
1737 | }; | |
1738 | ||
1739 | struct ib_rwq_ind_table_init_attr { | |
1740 | u32 log_ind_tbl_size; | |
1741 | /* Each entry is a pointer to Receive Work Queue */ | |
1742 | struct ib_wq **ind_tbl; | |
1743 | }; | |
1744 | ||
d291f1a6 DJ |
1745 | enum port_pkey_state { |
1746 | IB_PORT_PKEY_NOT_VALID = 0, | |
1747 | IB_PORT_PKEY_VALID = 1, | |
1748 | IB_PORT_PKEY_LISTED = 2, | |
1749 | }; | |
1750 | ||
1751 | struct ib_qp_security; | |
1752 | ||
1753 | struct ib_port_pkey { | |
1754 | enum port_pkey_state state; | |
1755 | u16 pkey_index; | |
1756 | u8 port_num; | |
1757 | struct list_head qp_list; | |
1758 | struct list_head to_error_list; | |
1759 | struct ib_qp_security *sec; | |
1760 | }; | |
1761 | ||
1762 | struct ib_ports_pkeys { | |
1763 | struct ib_port_pkey main; | |
1764 | struct ib_port_pkey alt; | |
1765 | }; | |
1766 | ||
1767 | struct ib_qp_security { | |
1768 | struct ib_qp *qp; | |
1769 | struct ib_device *dev; | |
1770 | /* Hold this mutex when changing port and pkey settings. */ | |
1771 | struct mutex mutex; | |
1772 | struct ib_ports_pkeys *ports_pkeys; | |
1773 | /* A list of all open shared QP handles. Required to enforce security | |
1774 | * properly for all users of a shared QP. | |
1775 | */ | |
1776 | struct list_head shared_qp_list; | |
1777 | void *security; | |
1778 | bool destroying; | |
1779 | atomic_t error_list_count; | |
1780 | struct completion error_complete; | |
1781 | int error_comps_pending; | |
1782 | }; | |
1783 | ||
632bc3f6 BVA |
1784 | /* |
1785 | * @max_write_sge: Maximum SGE elements per RDMA WRITE request. | |
1786 | * @max_read_sge: Maximum SGE elements per RDMA READ request. | |
1787 | */ | |
1da177e4 LT |
1788 | struct ib_qp { |
1789 | struct ib_device *device; | |
1790 | struct ib_pd *pd; | |
1791 | struct ib_cq *send_cq; | |
1792 | struct ib_cq *recv_cq; | |
fffb0383 CH |
1793 | spinlock_t mr_lock; |
1794 | int mrs_used; | |
a060b562 | 1795 | struct list_head rdma_mrs; |
0e353e34 | 1796 | struct list_head sig_mrs; |
1da177e4 | 1797 | struct ib_srq *srq; |
b42b63cf | 1798 | struct ib_xrcd *xrcd; /* XRC TGT QPs only */ |
d3d72d90 | 1799 | struct list_head xrcd_list; |
fffb0383 | 1800 | |
319a441d HHZ |
1801 | /* count times opened, mcast attaches, flow attaches */ |
1802 | atomic_t usecnt; | |
0e0ec7e0 SH |
1803 | struct list_head open_list; |
1804 | struct ib_qp *real_qp; | |
e2773c06 | 1805 | struct ib_uobject *uobject; |
1da177e4 LT |
1806 | void (*event_handler)(struct ib_event *, void *); |
1807 | void *qp_context; | |
1a1f460f JG |
1808 | /* sgid_attrs associated with the AV's */ |
1809 | const struct ib_gid_attr *av_sgid_attr; | |
1810 | const struct ib_gid_attr *alt_path_sgid_attr; | |
1da177e4 | 1811 | u32 qp_num; |
632bc3f6 BVA |
1812 | u32 max_write_sge; |
1813 | u32 max_read_sge; | |
1da177e4 | 1814 | enum ib_qp_type qp_type; |
a9017e23 | 1815 | struct ib_rwq_ind_table *rwq_ind_tbl; |
d291f1a6 | 1816 | struct ib_qp_security *qp_sec; |
498ca3c8 | 1817 | u8 port; |
02d8883f LR |
1818 | |
1819 | /* | |
1820 | * Implementation details of the RDMA core, don't use in drivers: | |
1821 | */ | |
1822 | struct rdma_restrack_entry res; | |
1da177e4 LT |
1823 | }; |
1824 | ||
bee76d7a AL |
1825 | struct ib_dm { |
1826 | struct ib_device *device; | |
1827 | u32 length; | |
1828 | u32 flags; | |
1829 | struct ib_uobject *uobject; | |
1830 | atomic_t usecnt; | |
1831 | }; | |
1832 | ||
1da177e4 | 1833 | struct ib_mr { |
e2773c06 RD |
1834 | struct ib_device *device; |
1835 | struct ib_pd *pd; | |
e2773c06 RD |
1836 | u32 lkey; |
1837 | u32 rkey; | |
4c67e2bf | 1838 | u64 iova; |
edd31551 | 1839 | u64 length; |
4c67e2bf | 1840 | unsigned int page_size; |
d4a85c30 | 1841 | bool need_inval; |
fffb0383 CH |
1842 | union { |
1843 | struct ib_uobject *uobject; /* user */ | |
1844 | struct list_head qp_entry; /* FR */ | |
1845 | }; | |
fccec5b8 | 1846 | |
be934cca AL |
1847 | struct ib_dm *dm; |
1848 | ||
fccec5b8 SW |
1849 | /* |
1850 | * Implementation details of the RDMA core, don't use in drivers: | |
1851 | */ | |
1852 | struct rdma_restrack_entry res; | |
1da177e4 LT |
1853 | }; |
1854 | ||
1855 | struct ib_mw { | |
1856 | struct ib_device *device; | |
1857 | struct ib_pd *pd; | |
e2773c06 | 1858 | struct ib_uobject *uobject; |
1da177e4 | 1859 | u32 rkey; |
7083e42e | 1860 | enum ib_mw_type type; |
1da177e4 LT |
1861 | }; |
1862 | ||
1863 | struct ib_fmr { | |
1864 | struct ib_device *device; | |
1865 | struct ib_pd *pd; | |
1866 | struct list_head list; | |
1867 | u32 lkey; | |
1868 | u32 rkey; | |
1869 | }; | |
1870 | ||
319a441d HHZ |
1871 | /* Supported steering options */ |
1872 | enum ib_flow_attr_type { | |
1873 | /* steering according to rule specifications */ | |
1874 | IB_FLOW_ATTR_NORMAL = 0x0, | |
1875 | /* default unicast and multicast rule - | |
1876 | * receive all Eth traffic which isn't steered to any QP | |
1877 | */ | |
1878 | IB_FLOW_ATTR_ALL_DEFAULT = 0x1, | |
1879 | /* default multicast rule - | |
1880 | * receive all Eth multicast traffic which isn't steered to any QP | |
1881 | */ | |
1882 | IB_FLOW_ATTR_MC_DEFAULT = 0x2, | |
1883 | /* sniffer rule - receive all port traffic */ | |
1884 | IB_FLOW_ATTR_SNIFFER = 0x3 | |
1885 | }; | |
1886 | ||
1887 | /* Supported steering header types */ | |
1888 | enum ib_flow_spec_type { | |
1889 | /* L2 headers*/ | |
76bd23b3 MR |
1890 | IB_FLOW_SPEC_ETH = 0x20, |
1891 | IB_FLOW_SPEC_IB = 0x22, | |
319a441d | 1892 | /* L3 header*/ |
76bd23b3 MR |
1893 | IB_FLOW_SPEC_IPV4 = 0x30, |
1894 | IB_FLOW_SPEC_IPV6 = 0x31, | |
56ab0b38 | 1895 | IB_FLOW_SPEC_ESP = 0x34, |
319a441d | 1896 | /* L4 headers*/ |
76bd23b3 MR |
1897 | IB_FLOW_SPEC_TCP = 0x40, |
1898 | IB_FLOW_SPEC_UDP = 0x41, | |
0dbf3332 | 1899 | IB_FLOW_SPEC_VXLAN_TUNNEL = 0x50, |
d90e5e50 | 1900 | IB_FLOW_SPEC_GRE = 0x51, |
b04f0f03 | 1901 | IB_FLOW_SPEC_MPLS = 0x60, |
fbf46860 | 1902 | IB_FLOW_SPEC_INNER = 0x100, |
460d0198 MR |
1903 | /* Actions */ |
1904 | IB_FLOW_SPEC_ACTION_TAG = 0x1000, | |
483a3966 | 1905 | IB_FLOW_SPEC_ACTION_DROP = 0x1001, |
9b828441 | 1906 | IB_FLOW_SPEC_ACTION_HANDLE = 0x1002, |
7eea23a5 | 1907 | IB_FLOW_SPEC_ACTION_COUNT = 0x1003, |
319a441d | 1908 | }; |
240ae00e | 1909 | #define IB_FLOW_SPEC_LAYER_MASK 0xF0 |
7eea23a5 | 1910 | #define IB_FLOW_SPEC_SUPPORT_LAYERS 10 |
22878dbc | 1911 | |
319a441d HHZ |
1912 | /* Flow steering rule priority is set according to it's domain. |
1913 | * Lower domain value means higher priority. | |
1914 | */ | |
1915 | enum ib_flow_domain { | |
1916 | IB_FLOW_DOMAIN_USER, | |
1917 | IB_FLOW_DOMAIN_ETHTOOL, | |
1918 | IB_FLOW_DOMAIN_RFS, | |
1919 | IB_FLOW_DOMAIN_NIC, | |
1920 | IB_FLOW_DOMAIN_NUM /* Must be last */ | |
1921 | }; | |
1922 | ||
a3100a78 MV |
1923 | enum ib_flow_flags { |
1924 | IB_FLOW_ATTR_FLAGS_DONT_TRAP = 1UL << 1, /* Continue match, no steal */ | |
21e82d3e BP |
1925 | IB_FLOW_ATTR_FLAGS_EGRESS = 1UL << 2, /* Egress flow */ |
1926 | IB_FLOW_ATTR_FLAGS_RESERVED = 1UL << 3 /* Must be last */ | |
a3100a78 MV |
1927 | }; |
1928 | ||
319a441d HHZ |
1929 | struct ib_flow_eth_filter { |
1930 | u8 dst_mac[6]; | |
1931 | u8 src_mac[6]; | |
1932 | __be16 ether_type; | |
1933 | __be16 vlan_tag; | |
15dfbd6b MG |
1934 | /* Must be last */ |
1935 | u8 real_sz[0]; | |
319a441d HHZ |
1936 | }; |
1937 | ||
1938 | struct ib_flow_spec_eth { | |
fbf46860 | 1939 | u32 type; |
319a441d HHZ |
1940 | u16 size; |
1941 | struct ib_flow_eth_filter val; | |
1942 | struct ib_flow_eth_filter mask; | |
1943 | }; | |
1944 | ||
240ae00e MB |
1945 | struct ib_flow_ib_filter { |
1946 | __be16 dlid; | |
1947 | __u8 sl; | |
15dfbd6b MG |
1948 | /* Must be last */ |
1949 | u8 real_sz[0]; | |
240ae00e MB |
1950 | }; |
1951 | ||
1952 | struct ib_flow_spec_ib { | |
fbf46860 | 1953 | u32 type; |
240ae00e MB |
1954 | u16 size; |
1955 | struct ib_flow_ib_filter val; | |
1956 | struct ib_flow_ib_filter mask; | |
1957 | }; | |
1958 | ||
989a3a8f MG |
1959 | /* IPv4 header flags */ |
1960 | enum ib_ipv4_flags { | |
1961 | IB_IPV4_DONT_FRAG = 0x2, /* Don't enable packet fragmentation */ | |
1962 | IB_IPV4_MORE_FRAG = 0X4 /* For All fragmented packets except the | |
1963 | last have this flag set */ | |
1964 | }; | |
1965 | ||
319a441d HHZ |
1966 | struct ib_flow_ipv4_filter { |
1967 | __be32 src_ip; | |
1968 | __be32 dst_ip; | |
989a3a8f MG |
1969 | u8 proto; |
1970 | u8 tos; | |
1971 | u8 ttl; | |
1972 | u8 flags; | |
15dfbd6b MG |
1973 | /* Must be last */ |
1974 | u8 real_sz[0]; | |
319a441d HHZ |
1975 | }; |
1976 | ||
1977 | struct ib_flow_spec_ipv4 { | |
fbf46860 | 1978 | u32 type; |
319a441d HHZ |
1979 | u16 size; |
1980 | struct ib_flow_ipv4_filter val; | |
1981 | struct ib_flow_ipv4_filter mask; | |
1982 | }; | |
1983 | ||
4c2aae71 MG |
1984 | struct ib_flow_ipv6_filter { |
1985 | u8 src_ip[16]; | |
1986 | u8 dst_ip[16]; | |
a72c6a2b MG |
1987 | __be32 flow_label; |
1988 | u8 next_hdr; | |
1989 | u8 traffic_class; | |
1990 | u8 hop_limit; | |
15dfbd6b MG |
1991 | /* Must be last */ |
1992 | u8 real_sz[0]; | |
4c2aae71 MG |
1993 | }; |
1994 | ||
1995 | struct ib_flow_spec_ipv6 { | |
fbf46860 | 1996 | u32 type; |
4c2aae71 MG |
1997 | u16 size; |
1998 | struct ib_flow_ipv6_filter val; | |
1999 | struct ib_flow_ipv6_filter mask; | |
2000 | }; | |
2001 | ||
319a441d HHZ |
2002 | struct ib_flow_tcp_udp_filter { |
2003 | __be16 dst_port; | |
2004 | __be16 src_port; | |
15dfbd6b MG |
2005 | /* Must be last */ |
2006 | u8 real_sz[0]; | |
319a441d HHZ |
2007 | }; |
2008 | ||
2009 | struct ib_flow_spec_tcp_udp { | |
fbf46860 | 2010 | u32 type; |
319a441d HHZ |
2011 | u16 size; |
2012 | struct ib_flow_tcp_udp_filter val; | |
2013 | struct ib_flow_tcp_udp_filter mask; | |
2014 | }; | |
2015 | ||
0dbf3332 MR |
2016 | struct ib_flow_tunnel_filter { |
2017 | __be32 tunnel_id; | |
2018 | u8 real_sz[0]; | |
2019 | }; | |
2020 | ||
2021 | /* ib_flow_spec_tunnel describes the Vxlan tunnel | |
2022 | * the tunnel_id from val has the vni value | |
2023 | */ | |
2024 | struct ib_flow_spec_tunnel { | |
fbf46860 | 2025 | u32 type; |
0dbf3332 MR |
2026 | u16 size; |
2027 | struct ib_flow_tunnel_filter val; | |
2028 | struct ib_flow_tunnel_filter mask; | |
2029 | }; | |
2030 | ||
56ab0b38 MB |
2031 | struct ib_flow_esp_filter { |
2032 | __be32 spi; | |
2033 | __be32 seq; | |
2034 | /* Must be last */ | |
2035 | u8 real_sz[0]; | |
2036 | }; | |
2037 | ||
2038 | struct ib_flow_spec_esp { | |
2039 | u32 type; | |
2040 | u16 size; | |
2041 | struct ib_flow_esp_filter val; | |
2042 | struct ib_flow_esp_filter mask; | |
2043 | }; | |
2044 | ||
d90e5e50 AL |
2045 | struct ib_flow_gre_filter { |
2046 | __be16 c_ks_res0_ver; | |
2047 | __be16 protocol; | |
2048 | __be32 key; | |
2049 | /* Must be last */ | |
2050 | u8 real_sz[0]; | |
2051 | }; | |
2052 | ||
2053 | struct ib_flow_spec_gre { | |
2054 | u32 type; | |
2055 | u16 size; | |
2056 | struct ib_flow_gre_filter val; | |
2057 | struct ib_flow_gre_filter mask; | |
2058 | }; | |
2059 | ||
b04f0f03 AL |
2060 | struct ib_flow_mpls_filter { |
2061 | __be32 tag; | |
2062 | /* Must be last */ | |
2063 | u8 real_sz[0]; | |
2064 | }; | |
2065 | ||
2066 | struct ib_flow_spec_mpls { | |
2067 | u32 type; | |
2068 | u16 size; | |
2069 | struct ib_flow_mpls_filter val; | |
2070 | struct ib_flow_mpls_filter mask; | |
2071 | }; | |
2072 | ||
460d0198 MR |
2073 | struct ib_flow_spec_action_tag { |
2074 | enum ib_flow_spec_type type; | |
2075 | u16 size; | |
2076 | u32 tag_id; | |
2077 | }; | |
2078 | ||
483a3966 SS |
2079 | struct ib_flow_spec_action_drop { |
2080 | enum ib_flow_spec_type type; | |
2081 | u16 size; | |
2082 | }; | |
2083 | ||
9b828441 MB |
2084 | struct ib_flow_spec_action_handle { |
2085 | enum ib_flow_spec_type type; | |
2086 | u16 size; | |
2087 | struct ib_flow_action *act; | |
2088 | }; | |
2089 | ||
7eea23a5 RS |
2090 | enum ib_counters_description { |
2091 | IB_COUNTER_PACKETS, | |
2092 | IB_COUNTER_BYTES, | |
2093 | }; | |
2094 | ||
2095 | struct ib_flow_spec_action_count { | |
2096 | enum ib_flow_spec_type type; | |
2097 | u16 size; | |
2098 | struct ib_counters *counters; | |
2099 | }; | |
2100 | ||
319a441d HHZ |
2101 | union ib_flow_spec { |
2102 | struct { | |
fbf46860 | 2103 | u32 type; |
319a441d HHZ |
2104 | u16 size; |
2105 | }; | |
2106 | struct ib_flow_spec_eth eth; | |
240ae00e | 2107 | struct ib_flow_spec_ib ib; |
319a441d HHZ |
2108 | struct ib_flow_spec_ipv4 ipv4; |
2109 | struct ib_flow_spec_tcp_udp tcp_udp; | |
4c2aae71 | 2110 | struct ib_flow_spec_ipv6 ipv6; |
0dbf3332 | 2111 | struct ib_flow_spec_tunnel tunnel; |
56ab0b38 | 2112 | struct ib_flow_spec_esp esp; |
d90e5e50 | 2113 | struct ib_flow_spec_gre gre; |
b04f0f03 | 2114 | struct ib_flow_spec_mpls mpls; |
460d0198 | 2115 | struct ib_flow_spec_action_tag flow_tag; |
483a3966 | 2116 | struct ib_flow_spec_action_drop drop; |
9b828441 | 2117 | struct ib_flow_spec_action_handle action; |
7eea23a5 | 2118 | struct ib_flow_spec_action_count flow_count; |
319a441d HHZ |
2119 | }; |
2120 | ||
2121 | struct ib_flow_attr { | |
2122 | enum ib_flow_attr_type type; | |
2123 | u16 size; | |
2124 | u16 priority; | |
2125 | u32 flags; | |
2126 | u8 num_of_specs; | |
2127 | u8 port; | |
7654cb1b | 2128 | union ib_flow_spec flows[]; |
319a441d HHZ |
2129 | }; |
2130 | ||
2131 | struct ib_flow { | |
2132 | struct ib_qp *qp; | |
6cd080a6 | 2133 | struct ib_device *device; |
319a441d HHZ |
2134 | struct ib_uobject *uobject; |
2135 | }; | |
2136 | ||
2eb9beae MB |
2137 | enum ib_flow_action_type { |
2138 | IB_FLOW_ACTION_UNSPECIFIED, | |
2139 | IB_FLOW_ACTION_ESP = 1, | |
2140 | }; | |
2141 | ||
2142 | struct ib_flow_action_attrs_esp_keymats { | |
2143 | enum ib_uverbs_flow_action_esp_keymat protocol; | |
2144 | union { | |
2145 | struct ib_uverbs_flow_action_esp_keymat_aes_gcm aes_gcm; | |
2146 | } keymat; | |
2147 | }; | |
2148 | ||
2149 | struct ib_flow_action_attrs_esp_replays { | |
2150 | enum ib_uverbs_flow_action_esp_replay protocol; | |
2151 | union { | |
2152 | struct ib_uverbs_flow_action_esp_replay_bmp bmp; | |
2153 | } replay; | |
2154 | }; | |
2155 | ||
2156 | enum ib_flow_action_attrs_esp_flags { | |
2157 | /* All user-space flags at the top: Use enum ib_uverbs_flow_action_esp_flags | |
2158 | * This is done in order to share the same flags between user-space and | |
2159 | * kernel and spare an unnecessary translation. | |
2160 | */ | |
2161 | ||
2162 | /* Kernel flags */ | |
2163 | IB_FLOW_ACTION_ESP_FLAGS_ESN_TRIGGERED = 1ULL << 32, | |
7d12f8d5 | 2164 | IB_FLOW_ACTION_ESP_FLAGS_MOD_ESP_ATTRS = 1ULL << 33, |
2eb9beae MB |
2165 | }; |
2166 | ||
2167 | struct ib_flow_spec_list { | |
2168 | struct ib_flow_spec_list *next; | |
2169 | union ib_flow_spec spec; | |
2170 | }; | |
2171 | ||
2172 | struct ib_flow_action_attrs_esp { | |
2173 | struct ib_flow_action_attrs_esp_keymats *keymat; | |
2174 | struct ib_flow_action_attrs_esp_replays *replay; | |
2175 | struct ib_flow_spec_list *encap; | |
2176 | /* Used only if IB_FLOW_ACTION_ESP_FLAGS_ESN_TRIGGERED is enabled. | |
2177 | * Value of 0 is a valid value. | |
2178 | */ | |
2179 | u32 esn; | |
2180 | u32 spi; | |
2181 | u32 seq; | |
2182 | u32 tfc_pad; | |
2183 | /* Use enum ib_flow_action_attrs_esp_flags */ | |
2184 | u64 flags; | |
2185 | u64 hard_limit_pkts; | |
2186 | }; | |
2187 | ||
2188 | struct ib_flow_action { | |
2189 | struct ib_device *device; | |
2190 | struct ib_uobject *uobject; | |
2191 | enum ib_flow_action_type type; | |
2192 | atomic_t usecnt; | |
2193 | }; | |
2194 | ||
4cd7c947 | 2195 | struct ib_mad_hdr; |
1da177e4 LT |
2196 | struct ib_grh; |
2197 | ||
2198 | enum ib_process_mad_flags { | |
2199 | IB_MAD_IGNORE_MKEY = 1, | |
2200 | IB_MAD_IGNORE_BKEY = 2, | |
2201 | IB_MAD_IGNORE_ALL = IB_MAD_IGNORE_MKEY | IB_MAD_IGNORE_BKEY | |
2202 | }; | |
2203 | ||
2204 | enum ib_mad_result { | |
2205 | IB_MAD_RESULT_FAILURE = 0, /* (!SUCCESS is the important flag) */ | |
2206 | IB_MAD_RESULT_SUCCESS = 1 << 0, /* MAD was successfully processed */ | |
2207 | IB_MAD_RESULT_REPLY = 1 << 1, /* Reply packet needs to be sent */ | |
2208 | IB_MAD_RESULT_CONSUMED = 1 << 2 /* Packet consumed: stop processing */ | |
2209 | }; | |
2210 | ||
21d6454a | 2211 | struct ib_port_cache { |
883c71fe | 2212 | u64 subnet_prefix; |
21d6454a JW |
2213 | struct ib_pkey_cache *pkey; |
2214 | struct ib_gid_table *gid; | |
2215 | u8 lmc; | |
2216 | enum ib_port_state port_state; | |
2217 | }; | |
2218 | ||
1da177e4 LT |
2219 | struct ib_cache { |
2220 | rwlock_t lock; | |
2221 | struct ib_event_handler event_handler; | |
1da177e4 LT |
2222 | }; |
2223 | ||
7738613e IW |
2224 | struct ib_port_immutable { |
2225 | int pkey_tbl_len; | |
2226 | int gid_tbl_len; | |
f9b22e35 | 2227 | u32 core_cap_flags; |
337877a4 | 2228 | u32 max_mad_size; |
7738613e IW |
2229 | }; |
2230 | ||
8ceb1357 | 2231 | struct ib_port_data { |
324e227e JG |
2232 | struct ib_device *ib_dev; |
2233 | ||
8ceb1357 JG |
2234 | struct ib_port_immutable immutable; |
2235 | ||
2236 | spinlock_t pkey_list_lock; | |
2237 | struct list_head pkey_list; | |
8faea9fd JG |
2238 | |
2239 | struct ib_port_cache cache; | |
c2261dd7 JG |
2240 | |
2241 | spinlock_t netdev_lock; | |
324e227e JG |
2242 | struct net_device __rcu *netdev; |
2243 | struct hlist_node ndev_hash_link; | |
8ceb1357 JG |
2244 | }; |
2245 | ||
2fc77572 VN |
2246 | /* rdma netdev type - specifies protocol type */ |
2247 | enum rdma_netdev_t { | |
f0ad83ac NV |
2248 | RDMA_NETDEV_OPA_VNIC, |
2249 | RDMA_NETDEV_IPOIB, | |
2fc77572 VN |
2250 | }; |
2251 | ||
2252 | /** | |
2253 | * struct rdma_netdev - rdma netdev | |
2254 | * For cases where netstack interfacing is required. | |
2255 | */ | |
2256 | struct rdma_netdev { | |
2257 | void *clnt_priv; | |
2258 | struct ib_device *hca; | |
2259 | u8 port_num; | |
2260 | ||
9f49a5b5 JG |
2261 | /* |
2262 | * cleanup function must be specified. | |
2263 | * FIXME: This is only used for OPA_VNIC and that usage should be | |
2264 | * removed too. | |
2265 | */ | |
8e959601 NV |
2266 | void (*free_rdma_netdev)(struct net_device *netdev); |
2267 | ||
2fc77572 VN |
2268 | /* control functions */ |
2269 | void (*set_id)(struct net_device *netdev, int id); | |
f0ad83ac NV |
2270 | /* send packet */ |
2271 | int (*send)(struct net_device *dev, struct sk_buff *skb, | |
2272 | struct ib_ah *address, u32 dqpn); | |
2273 | /* multicast */ | |
2274 | int (*attach_mcast)(struct net_device *dev, struct ib_device *hca, | |
2275 | union ib_gid *gid, u16 mlid, | |
2276 | int set_qkey, u32 qkey); | |
2277 | int (*detach_mcast)(struct net_device *dev, struct ib_device *hca, | |
2278 | union ib_gid *gid, u16 mlid); | |
2fc77572 VN |
2279 | }; |
2280 | ||
f6a8a19b DD |
2281 | struct rdma_netdev_alloc_params { |
2282 | size_t sizeof_priv; | |
2283 | unsigned int txqs; | |
2284 | unsigned int rxqs; | |
2285 | void *param; | |
2286 | ||
2287 | int (*initialize_rdma_netdev)(struct ib_device *device, u8 port_num, | |
2288 | struct net_device *netdev, void *param); | |
2289 | }; | |
2290 | ||
fa9b1802 RS |
2291 | struct ib_counters { |
2292 | struct ib_device *device; | |
2293 | struct ib_uobject *uobject; | |
2294 | /* num of objects attached */ | |
2295 | atomic_t usecnt; | |
2296 | }; | |
2297 | ||
51d7a538 RS |
2298 | struct ib_counters_read_attr { |
2299 | u64 *counters_buff; | |
2300 | u32 ncounters; | |
2301 | u32 flags; /* use enum ib_read_counters_flags */ | |
2302 | }; | |
2303 | ||
2eb9beae | 2304 | struct uverbs_attr_bundle; |
dd05cb82 KH |
2305 | struct iw_cm_id; |
2306 | struct iw_cm_conn_param; | |
2eb9beae | 2307 | |
30471d4b LR |
2308 | #define INIT_RDMA_OBJ_SIZE(ib_struct, drv_struct, member) \ |
2309 | .size_##ib_struct = \ | |
2310 | (sizeof(struct drv_struct) + \ | |
2311 | BUILD_BUG_ON_ZERO(offsetof(struct drv_struct, member)) + \ | |
2312 | BUILD_BUG_ON_ZERO( \ | |
2313 | !__same_type(((struct drv_struct *)NULL)->member, \ | |
2314 | struct ib_struct))) | |
2315 | ||
f6316032 LR |
2316 | #define rdma_zalloc_drv_obj_gfp(ib_dev, ib_type, gfp) \ |
2317 | ((struct ib_type *)kzalloc(ib_dev->ops.size_##ib_type, gfp)) | |
2318 | ||
30471d4b | 2319 | #define rdma_zalloc_drv_obj(ib_dev, ib_type) \ |
f6316032 | 2320 | rdma_zalloc_drv_obj_gfp(ib_dev, ib_type, GFP_KERNEL) |
30471d4b LR |
2321 | |
2322 | #define DECLARE_RDMA_OBJ_SIZE(ib_struct) size_t size_##ib_struct | |
2323 | ||
521ed0d9 KH |
2324 | /** |
2325 | * struct ib_device_ops - InfiniBand device operations | |
2326 | * This structure defines all the InfiniBand device operations, providers will | |
2327 | * need to define the supported operations, otherwise they will be set to null. | |
2328 | */ | |
2329 | struct ib_device_ops { | |
2330 | int (*post_send)(struct ib_qp *qp, const struct ib_send_wr *send_wr, | |
2331 | const struct ib_send_wr **bad_send_wr); | |
2332 | int (*post_recv)(struct ib_qp *qp, const struct ib_recv_wr *recv_wr, | |
2333 | const struct ib_recv_wr **bad_recv_wr); | |
2334 | void (*drain_rq)(struct ib_qp *qp); | |
2335 | void (*drain_sq)(struct ib_qp *qp); | |
2336 | int (*poll_cq)(struct ib_cq *cq, int num_entries, struct ib_wc *wc); | |
2337 | int (*peek_cq)(struct ib_cq *cq, int wc_cnt); | |
2338 | int (*req_notify_cq)(struct ib_cq *cq, enum ib_cq_notify_flags flags); | |
2339 | int (*req_ncomp_notif)(struct ib_cq *cq, int wc_cnt); | |
2340 | int (*post_srq_recv)(struct ib_srq *srq, | |
2341 | const struct ib_recv_wr *recv_wr, | |
2342 | const struct ib_recv_wr **bad_recv_wr); | |
2343 | int (*process_mad)(struct ib_device *device, int process_mad_flags, | |
2344 | u8 port_num, const struct ib_wc *in_wc, | |
2345 | const struct ib_grh *in_grh, | |
2346 | const struct ib_mad_hdr *in_mad, size_t in_mad_size, | |
2347 | struct ib_mad_hdr *out_mad, size_t *out_mad_size, | |
2348 | u16 *out_mad_pkey_index); | |
2349 | int (*query_device)(struct ib_device *device, | |
2350 | struct ib_device_attr *device_attr, | |
2351 | struct ib_udata *udata); | |
2352 | int (*modify_device)(struct ib_device *device, int device_modify_mask, | |
2353 | struct ib_device_modify *device_modify); | |
2354 | void (*get_dev_fw_str)(struct ib_device *device, char *str); | |
2355 | const struct cpumask *(*get_vector_affinity)(struct ib_device *ibdev, | |
2356 | int comp_vector); | |
2357 | int (*query_port)(struct ib_device *device, u8 port_num, | |
2358 | struct ib_port_attr *port_attr); | |
2359 | int (*modify_port)(struct ib_device *device, u8 port_num, | |
2360 | int port_modify_mask, | |
2361 | struct ib_port_modify *port_modify); | |
2362 | /** | |
2363 | * The following mandatory functions are used only at device | |
2364 | * registration. Keep functions such as these at the end of this | |
2365 | * structure to avoid cache line misses when accessing struct ib_device | |
2366 | * in fast paths. | |
2367 | */ | |
2368 | int (*get_port_immutable)(struct ib_device *device, u8 port_num, | |
2369 | struct ib_port_immutable *immutable); | |
2370 | enum rdma_link_layer (*get_link_layer)(struct ib_device *device, | |
2371 | u8 port_num); | |
2372 | /** | |
2373 | * When calling get_netdev, the HW vendor's driver should return the | |
2374 | * net device of device @device at port @port_num or NULL if such | |
2375 | * a net device doesn't exist. The vendor driver should call dev_hold | |
2376 | * on this net device. The HW vendor's device driver must guarantee | |
2377 | * that this function returns NULL before the net device has finished | |
2378 | * NETDEV_UNREGISTER state. | |
2379 | */ | |
2380 | struct net_device *(*get_netdev)(struct ib_device *device, u8 port_num); | |
2381 | /** | |
2382 | * rdma netdev operation | |
2383 | * | |
2384 | * Driver implementing alloc_rdma_netdev or rdma_netdev_get_params | |
2385 | * must return -EOPNOTSUPP if it doesn't support the specified type. | |
2386 | */ | |
2387 | struct net_device *(*alloc_rdma_netdev)( | |
2388 | struct ib_device *device, u8 port_num, enum rdma_netdev_t type, | |
2389 | const char *name, unsigned char name_assign_type, | |
2390 | void (*setup)(struct net_device *)); | |
2391 | ||
2392 | int (*rdma_netdev_get_params)(struct ib_device *device, u8 port_num, | |
2393 | enum rdma_netdev_t type, | |
2394 | struct rdma_netdev_alloc_params *params); | |
2395 | /** | |
2396 | * query_gid should be return GID value for @device, when @port_num | |
2397 | * link layer is either IB or iWarp. It is no-op if @port_num port | |
2398 | * is RoCE link layer. | |
2399 | */ | |
2400 | int (*query_gid)(struct ib_device *device, u8 port_num, int index, | |
2401 | union ib_gid *gid); | |
2402 | /** | |
2403 | * When calling add_gid, the HW vendor's driver should add the gid | |
2404 | * of device of port at gid index available at @attr. Meta-info of | |
2405 | * that gid (for example, the network device related to this gid) is | |
2406 | * available at @attr. @context allows the HW vendor driver to store | |
2407 | * extra information together with a GID entry. The HW vendor driver may | |
2408 | * allocate memory to contain this information and store it in @context | |
2409 | * when a new GID entry is written to. Params are consistent until the | |
2410 | * next call of add_gid or delete_gid. The function should return 0 on | |
2411 | * success or error otherwise. The function could be called | |
2412 | * concurrently for different ports. This function is only called when | |
2413 | * roce_gid_table is used. | |
2414 | */ | |
2415 | int (*add_gid)(const struct ib_gid_attr *attr, void **context); | |
2416 | /** | |
2417 | * When calling del_gid, the HW vendor's driver should delete the | |
2418 | * gid of device @device at gid index gid_index of port port_num | |
2419 | * available in @attr. | |
2420 | * Upon the deletion of a GID entry, the HW vendor must free any | |
2421 | * allocated memory. The caller will clear @context afterwards. | |
2422 | * This function is only called when roce_gid_table is used. | |
2423 | */ | |
2424 | int (*del_gid)(const struct ib_gid_attr *attr, void **context); | |
2425 | int (*query_pkey)(struct ib_device *device, u8 port_num, u16 index, | |
2426 | u16 *pkey); | |
a2a074ef LR |
2427 | int (*alloc_ucontext)(struct ib_ucontext *context, |
2428 | struct ib_udata *udata); | |
2429 | void (*dealloc_ucontext)(struct ib_ucontext *context); | |
521ed0d9 KH |
2430 | int (*mmap)(struct ib_ucontext *context, struct vm_area_struct *vma); |
2431 | void (*disassociate_ucontext)(struct ib_ucontext *ibcontext); | |
ff23dfa1 | 2432 | int (*alloc_pd)(struct ib_pd *pd, struct ib_udata *udata); |
c4367a26 | 2433 | void (*dealloc_pd)(struct ib_pd *pd, struct ib_udata *udata); |
d3456914 LR |
2434 | int (*create_ah)(struct ib_ah *ah, struct rdma_ah_attr *ah_attr, |
2435 | u32 flags, struct ib_udata *udata); | |
521ed0d9 KH |
2436 | int (*modify_ah)(struct ib_ah *ah, struct rdma_ah_attr *ah_attr); |
2437 | int (*query_ah)(struct ib_ah *ah, struct rdma_ah_attr *ah_attr); | |
d3456914 | 2438 | void (*destroy_ah)(struct ib_ah *ah, u32 flags); |
68e326de LR |
2439 | int (*create_srq)(struct ib_srq *srq, |
2440 | struct ib_srq_init_attr *srq_init_attr, | |
2441 | struct ib_udata *udata); | |
521ed0d9 KH |
2442 | int (*modify_srq)(struct ib_srq *srq, struct ib_srq_attr *srq_attr, |
2443 | enum ib_srq_attr_mask srq_attr_mask, | |
2444 | struct ib_udata *udata); | |
2445 | int (*query_srq)(struct ib_srq *srq, struct ib_srq_attr *srq_attr); | |
68e326de | 2446 | void (*destroy_srq)(struct ib_srq *srq, struct ib_udata *udata); |
521ed0d9 KH |
2447 | struct ib_qp *(*create_qp)(struct ib_pd *pd, |
2448 | struct ib_qp_init_attr *qp_init_attr, | |
2449 | struct ib_udata *udata); | |
2450 | int (*modify_qp)(struct ib_qp *qp, struct ib_qp_attr *qp_attr, | |
2451 | int qp_attr_mask, struct ib_udata *udata); | |
2452 | int (*query_qp)(struct ib_qp *qp, struct ib_qp_attr *qp_attr, | |
2453 | int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr); | |
c4367a26 | 2454 | int (*destroy_qp)(struct ib_qp *qp, struct ib_udata *udata); |
521ed0d9 KH |
2455 | struct ib_cq *(*create_cq)(struct ib_device *device, |
2456 | const struct ib_cq_init_attr *attr, | |
521ed0d9 KH |
2457 | struct ib_udata *udata); |
2458 | int (*modify_cq)(struct ib_cq *cq, u16 cq_count, u16 cq_period); | |
c4367a26 | 2459 | int (*destroy_cq)(struct ib_cq *cq, struct ib_udata *udata); |
521ed0d9 KH |
2460 | int (*resize_cq)(struct ib_cq *cq, int cqe, struct ib_udata *udata); |
2461 | struct ib_mr *(*get_dma_mr)(struct ib_pd *pd, int mr_access_flags); | |
2462 | struct ib_mr *(*reg_user_mr)(struct ib_pd *pd, u64 start, u64 length, | |
2463 | u64 virt_addr, int mr_access_flags, | |
2464 | struct ib_udata *udata); | |
2465 | int (*rereg_user_mr)(struct ib_mr *mr, int flags, u64 start, u64 length, | |
2466 | u64 virt_addr, int mr_access_flags, | |
2467 | struct ib_pd *pd, struct ib_udata *udata); | |
c4367a26 | 2468 | int (*dereg_mr)(struct ib_mr *mr, struct ib_udata *udata); |
521ed0d9 | 2469 | struct ib_mr *(*alloc_mr)(struct ib_pd *pd, enum ib_mr_type mr_type, |
c4367a26 | 2470 | u32 max_num_sg, struct ib_udata *udata); |
ad8a4496 MS |
2471 | int (*advise_mr)(struct ib_pd *pd, |
2472 | enum ib_uverbs_advise_mr_advice advice, u32 flags, | |
2473 | struct ib_sge *sg_list, u32 num_sge, | |
2474 | struct uverbs_attr_bundle *attrs); | |
521ed0d9 KH |
2475 | int (*map_mr_sg)(struct ib_mr *mr, struct scatterlist *sg, int sg_nents, |
2476 | unsigned int *sg_offset); | |
2477 | int (*check_mr_status)(struct ib_mr *mr, u32 check_mask, | |
2478 | struct ib_mr_status *mr_status); | |
2479 | struct ib_mw *(*alloc_mw)(struct ib_pd *pd, enum ib_mw_type type, | |
2480 | struct ib_udata *udata); | |
2481 | int (*dealloc_mw)(struct ib_mw *mw); | |
2482 | struct ib_fmr *(*alloc_fmr)(struct ib_pd *pd, int mr_access_flags, | |
2483 | struct ib_fmr_attr *fmr_attr); | |
2484 | int (*map_phys_fmr)(struct ib_fmr *fmr, u64 *page_list, int list_len, | |
2485 | u64 iova); | |
2486 | int (*unmap_fmr)(struct list_head *fmr_list); | |
2487 | int (*dealloc_fmr)(struct ib_fmr *fmr); | |
2488 | int (*attach_mcast)(struct ib_qp *qp, union ib_gid *gid, u16 lid); | |
2489 | int (*detach_mcast)(struct ib_qp *qp, union ib_gid *gid, u16 lid); | |
2490 | struct ib_xrcd *(*alloc_xrcd)(struct ib_device *device, | |
521ed0d9 | 2491 | struct ib_udata *udata); |
c4367a26 | 2492 | int (*dealloc_xrcd)(struct ib_xrcd *xrcd, struct ib_udata *udata); |
521ed0d9 KH |
2493 | struct ib_flow *(*create_flow)(struct ib_qp *qp, |
2494 | struct ib_flow_attr *flow_attr, | |
2495 | int domain, struct ib_udata *udata); | |
2496 | int (*destroy_flow)(struct ib_flow *flow_id); | |
2497 | struct ib_flow_action *(*create_flow_action_esp)( | |
2498 | struct ib_device *device, | |
2499 | const struct ib_flow_action_attrs_esp *attr, | |
2500 | struct uverbs_attr_bundle *attrs); | |
2501 | int (*destroy_flow_action)(struct ib_flow_action *action); | |
2502 | int (*modify_flow_action_esp)( | |
2503 | struct ib_flow_action *action, | |
2504 | const struct ib_flow_action_attrs_esp *attr, | |
2505 | struct uverbs_attr_bundle *attrs); | |
2506 | int (*set_vf_link_state)(struct ib_device *device, int vf, u8 port, | |
2507 | int state); | |
2508 | int (*get_vf_config)(struct ib_device *device, int vf, u8 port, | |
2509 | struct ifla_vf_info *ivf); | |
2510 | int (*get_vf_stats)(struct ib_device *device, int vf, u8 port, | |
2511 | struct ifla_vf_stats *stats); | |
2512 | int (*set_vf_guid)(struct ib_device *device, int vf, u8 port, u64 guid, | |
2513 | int type); | |
2514 | struct ib_wq *(*create_wq)(struct ib_pd *pd, | |
2515 | struct ib_wq_init_attr *init_attr, | |
2516 | struct ib_udata *udata); | |
c4367a26 | 2517 | int (*destroy_wq)(struct ib_wq *wq, struct ib_udata *udata); |
521ed0d9 KH |
2518 | int (*modify_wq)(struct ib_wq *wq, struct ib_wq_attr *attr, |
2519 | u32 wq_attr_mask, struct ib_udata *udata); | |
2520 | struct ib_rwq_ind_table *(*create_rwq_ind_table)( | |
2521 | struct ib_device *device, | |
2522 | struct ib_rwq_ind_table_init_attr *init_attr, | |
2523 | struct ib_udata *udata); | |
2524 | int (*destroy_rwq_ind_table)(struct ib_rwq_ind_table *wq_ind_table); | |
2525 | struct ib_dm *(*alloc_dm)(struct ib_device *device, | |
2526 | struct ib_ucontext *context, | |
2527 | struct ib_dm_alloc_attr *attr, | |
2528 | struct uverbs_attr_bundle *attrs); | |
c4367a26 | 2529 | int (*dealloc_dm)(struct ib_dm *dm, struct uverbs_attr_bundle *attrs); |
521ed0d9 KH |
2530 | struct ib_mr *(*reg_dm_mr)(struct ib_pd *pd, struct ib_dm *dm, |
2531 | struct ib_dm_mr_attr *attr, | |
2532 | struct uverbs_attr_bundle *attrs); | |
2533 | struct ib_counters *(*create_counters)( | |
2534 | struct ib_device *device, struct uverbs_attr_bundle *attrs); | |
2535 | int (*destroy_counters)(struct ib_counters *counters); | |
2536 | int (*read_counters)(struct ib_counters *counters, | |
2537 | struct ib_counters_read_attr *counters_read_attr, | |
2538 | struct uverbs_attr_bundle *attrs); | |
2539 | /** | |
2540 | * alloc_hw_stats - Allocate a struct rdma_hw_stats and fill in the | |
2541 | * driver initialized data. The struct is kfree()'ed by the sysfs | |
2542 | * core when the device is removed. A lifespan of -1 in the return | |
2543 | * struct tells the core to set a default lifespan. | |
2544 | */ | |
2545 | struct rdma_hw_stats *(*alloc_hw_stats)(struct ib_device *device, | |
2546 | u8 port_num); | |
2547 | /** | |
2548 | * get_hw_stats - Fill in the counter value(s) in the stats struct. | |
2549 | * @index - The index in the value array we wish to have updated, or | |
2550 | * num_counters if we want all stats updated | |
2551 | * Return codes - | |
2552 | * < 0 - Error, no counters updated | |
2553 | * index - Updated the single counter pointed to by index | |
2554 | * num_counters - Updated all counters (will reset the timestamp | |
2555 | * and prevent further calls for lifespan milliseconds) | |
2556 | * Drivers are allowed to update all counters in leiu of just the | |
2557 | * one given in index at their option | |
2558 | */ | |
2559 | int (*get_hw_stats)(struct ib_device *device, | |
2560 | struct rdma_hw_stats *stats, u8 port, int index); | |
ea4baf7f PP |
2561 | /* |
2562 | * This function is called once for each port when a ib device is | |
2563 | * registered. | |
2564 | */ | |
2565 | int (*init_port)(struct ib_device *device, u8 port_num, | |
2566 | struct kobject *port_sysfs); | |
02da3750 LR |
2567 | /** |
2568 | * Allows rdma drivers to add their own restrack attributes. | |
2569 | */ | |
2570 | int (*fill_res_entry)(struct sk_buff *msg, | |
2571 | struct rdma_restrack_entry *entry); | |
21a428a0 | 2572 | |
d0899892 | 2573 | /* Device lifecycle callbacks */ |
ca22354b JG |
2574 | /* |
2575 | * Called after the device becomes registered, before clients are | |
2576 | * attached | |
2577 | */ | |
2578 | int (*enable_driver)(struct ib_device *dev); | |
d0899892 JG |
2579 | /* |
2580 | * This is called as part of ib_dealloc_device(). | |
2581 | */ | |
2582 | void (*dealloc_driver)(struct ib_device *dev); | |
2583 | ||
dd05cb82 KH |
2584 | /* iWarp CM callbacks */ |
2585 | void (*iw_add_ref)(struct ib_qp *qp); | |
2586 | void (*iw_rem_ref)(struct ib_qp *qp); | |
2587 | struct ib_qp *(*iw_get_qp)(struct ib_device *device, int qpn); | |
2588 | int (*iw_connect)(struct iw_cm_id *cm_id, | |
2589 | struct iw_cm_conn_param *conn_param); | |
2590 | int (*iw_accept)(struct iw_cm_id *cm_id, | |
2591 | struct iw_cm_conn_param *conn_param); | |
2592 | int (*iw_reject)(struct iw_cm_id *cm_id, const void *pdata, | |
2593 | u8 pdata_len); | |
2594 | int (*iw_create_listen)(struct iw_cm_id *cm_id, int backlog); | |
2595 | int (*iw_destroy_listen)(struct iw_cm_id *cm_id); | |
2596 | ||
d3456914 | 2597 | DECLARE_RDMA_OBJ_SIZE(ib_ah); |
21a428a0 | 2598 | DECLARE_RDMA_OBJ_SIZE(ib_pd); |
68e326de | 2599 | DECLARE_RDMA_OBJ_SIZE(ib_srq); |
a2a074ef | 2600 | DECLARE_RDMA_OBJ_SIZE(ib_ucontext); |
521ed0d9 KH |
2601 | }; |
2602 | ||
cebe556b PP |
2603 | struct ib_core_device { |
2604 | /* device must be the first element in structure until, | |
2605 | * union of ib_core_device and device exists in ib_device. | |
2606 | */ | |
2607 | struct device dev; | |
4e0f7b90 | 2608 | possible_net_t rdma_net; |
cebe556b PP |
2609 | struct kobject *ports_kobj; |
2610 | struct list_head port_list; | |
2611 | struct ib_device *owner; /* reach back to owner ib_device */ | |
2612 | }; | |
41eda65c | 2613 | |
cebe556b | 2614 | struct rdma_restrack_root; |
1da177e4 | 2615 | struct ib_device { |
0957c29f BVA |
2616 | /* Do not access @dma_device directly from ULP nor from HW drivers. */ |
2617 | struct device *dma_device; | |
3023a1e9 | 2618 | struct ib_device_ops ops; |
1da177e4 | 2619 | char name[IB_DEVICE_NAME_MAX]; |
324e227e | 2620 | struct rcu_head rcu_head; |
1da177e4 LT |
2621 | |
2622 | struct list_head event_handler_list; | |
2623 | spinlock_t event_handler_lock; | |
2624 | ||
921eab11 | 2625 | struct rw_semaphore client_data_rwsem; |
0df91bb6 | 2626 | struct xarray client_data; |
d0899892 | 2627 | struct mutex unregistration_lock; |
1da177e4 LT |
2628 | |
2629 | struct ib_cache cache; | |
7738613e | 2630 | /** |
8ceb1357 | 2631 | * port_data is indexed by port number |
7738613e | 2632 | */ |
8ceb1357 | 2633 | struct ib_port_data *port_data; |
1da177e4 | 2634 | |
f4fd0b22 MT |
2635 | int num_comp_vectors; |
2636 | ||
e2773c06 | 2637 | struct module *owner; |
cebe556b PP |
2638 | union { |
2639 | struct device dev; | |
2640 | struct ib_core_device coredev; | |
2641 | }; | |
2642 | ||
d4122f5a PP |
2643 | /* First group for device attributes, |
2644 | * Second group for driver provided attributes (optional). | |
2645 | * It is NULL terminated array. | |
2646 | */ | |
2647 | const struct attribute_group *groups[3]; | |
adee9f3f | 2648 | |
274c0891 | 2649 | int uverbs_abi_ver; |
17a55f79 | 2650 | u64 uverbs_cmd_mask; |
f21519b2 | 2651 | u64 uverbs_ex_cmd_mask; |
274c0891 | 2652 | |
bd99fdea | 2653 | char node_desc[IB_DEVICE_NODE_DESC_MAX]; |
cf311cd4 | 2654 | __be64 node_guid; |
96f15c03 | 2655 | u32 local_dma_lkey; |
4139032b | 2656 | u16 is_switch:1; |
6780c4fa GP |
2657 | /* Indicates kernel verbs support, should not be used in drivers */ |
2658 | u16 kverbs_provider:1; | |
1da177e4 LT |
2659 | u8 node_type; |
2660 | u8 phys_port_cnt; | |
3e153a93 | 2661 | struct ib_device_attr attrs; |
b40f4757 CL |
2662 | struct attribute_group *hw_stats_ag; |
2663 | struct rdma_hw_stats *hw_stats; | |
7738613e | 2664 | |
43579b5f PP |
2665 | #ifdef CONFIG_CGROUP_RDMA |
2666 | struct rdmacg_device cg_device; | |
2667 | #endif | |
2668 | ||
ecc82c53 | 2669 | u32 index; |
41eda65c | 2670 | struct rdma_restrack_root *res; |
ecc82c53 | 2671 | |
0cbf432d | 2672 | const struct uapi_definition *driver_def; |
0ede73bc | 2673 | enum rdma_driver_id driver_id; |
d79af724 | 2674 | |
01b67117 | 2675 | /* |
d79af724 JG |
2676 | * Positive refcount indicates that the device is currently |
2677 | * registered and cannot be unregistered. | |
01b67117 PP |
2678 | */ |
2679 | refcount_t refcount; | |
2680 | struct completion unreg_completion; | |
d0899892 | 2681 | struct work_struct unregistration_work; |
3856ec4b SW |
2682 | |
2683 | const struct rdma_link_ops *link_ops; | |
4e0f7b90 PP |
2684 | |
2685 | /* Protects compat_devs xarray modifications */ | |
2686 | struct mutex compat_devs_mutex; | |
2687 | /* Maintains compat devices for each net namespace */ | |
2688 | struct xarray compat_devs; | |
dd05cb82 KH |
2689 | |
2690 | /* Used by iWarp CM */ | |
2691 | char iw_ifname[IFNAMSIZ]; | |
2692 | u32 iw_driver_flags; | |
1da177e4 LT |
2693 | }; |
2694 | ||
2695 | struct ib_client { | |
e59178d8 | 2696 | const char *name; |
1da177e4 | 2697 | void (*add) (struct ib_device *); |
7c1eb45a | 2698 | void (*remove)(struct ib_device *, void *client_data); |
1da177e4 | 2699 | |
9268f72d YK |
2700 | /* Returns the net_dev belonging to this ib_client and matching the |
2701 | * given parameters. | |
2702 | * @dev: An RDMA device that the net_dev use for communication. | |
2703 | * @port: A physical port number on the RDMA device. | |
2704 | * @pkey: P_Key that the net_dev uses if applicable. | |
2705 | * @gid: A GID that the net_dev uses to communicate. | |
2706 | * @addr: An IP address the net_dev is configured with. | |
2707 | * @client_data: The device's client data set by ib_set_client_data(). | |
2708 | * | |
2709 | * An ib_client that implements a net_dev on top of RDMA devices | |
2710 | * (such as IP over IB) should implement this callback, allowing the | |
2711 | * rdma_cm module to find the right net_dev for a given request. | |
2712 | * | |
2713 | * The caller is responsible for calling dev_put on the returned | |
2714 | * netdev. */ | |
2715 | struct net_device *(*get_net_dev_by_params)( | |
2716 | struct ib_device *dev, | |
2717 | u8 port, | |
2718 | u16 pkey, | |
2719 | const union ib_gid *gid, | |
2720 | const struct sockaddr *addr, | |
2721 | void *client_data); | |
1da177e4 | 2722 | struct list_head list; |
e59178d8 | 2723 | u32 client_id; |
6780c4fa GP |
2724 | |
2725 | /* kverbs are not required by the client */ | |
2726 | u8 no_kverbs_req:1; | |
1da177e4 LT |
2727 | }; |
2728 | ||
459cc69f LR |
2729 | struct ib_device *_ib_alloc_device(size_t size); |
2730 | #define ib_alloc_device(drv_struct, member) \ | |
2731 | container_of(_ib_alloc_device(sizeof(struct drv_struct) + \ | |
2732 | BUILD_BUG_ON_ZERO(offsetof( \ | |
2733 | struct drv_struct, member))), \ | |
2734 | struct drv_struct, member) | |
2735 | ||
1da177e4 LT |
2736 | void ib_dealloc_device(struct ib_device *device); |
2737 | ||
9abb0d1b | 2738 | void ib_get_device_fw_str(struct ib_device *device, char *str); |
5fa76c20 | 2739 | |
ea4baf7f | 2740 | int ib_register_device(struct ib_device *device, const char *name); |
1da177e4 | 2741 | void ib_unregister_device(struct ib_device *device); |
d0899892 JG |
2742 | void ib_unregister_driver(enum rdma_driver_id driver_id); |
2743 | void ib_unregister_device_and_put(struct ib_device *device); | |
2744 | void ib_unregister_device_queued(struct ib_device *ib_dev); | |
1da177e4 LT |
2745 | |
2746 | int ib_register_client (struct ib_client *client); | |
2747 | void ib_unregister_client(struct ib_client *client); | |
2748 | ||
0df91bb6 JG |
2749 | /** |
2750 | * ib_get_client_data - Get IB client context | |
2751 | * @device:Device to get context for | |
2752 | * @client:Client to get context for | |
2753 | * | |
2754 | * ib_get_client_data() returns the client context data set with | |
2755 | * ib_set_client_data(). This can only be called while the client is | |
2756 | * registered to the device, once the ib_client remove() callback returns this | |
2757 | * cannot be called. | |
2758 | */ | |
2759 | static inline void *ib_get_client_data(struct ib_device *device, | |
2760 | struct ib_client *client) | |
2761 | { | |
2762 | return xa_load(&device->client_data, client->client_id); | |
2763 | } | |
1da177e4 LT |
2764 | void ib_set_client_data(struct ib_device *device, struct ib_client *client, |
2765 | void *data); | |
521ed0d9 KH |
2766 | void ib_set_device_ops(struct ib_device *device, |
2767 | const struct ib_device_ops *ops); | |
1da177e4 | 2768 | |
5f9794dc JG |
2769 | #if IS_ENABLED(CONFIG_INFINIBAND_USER_ACCESS) |
2770 | int rdma_user_mmap_io(struct ib_ucontext *ucontext, struct vm_area_struct *vma, | |
2771 | unsigned long pfn, unsigned long size, pgprot_t prot); | |
5f9794dc JG |
2772 | #else |
2773 | static inline int rdma_user_mmap_io(struct ib_ucontext *ucontext, | |
2774 | struct vm_area_struct *vma, | |
2775 | unsigned long pfn, unsigned long size, | |
2776 | pgprot_t prot) | |
2777 | { | |
2778 | return -EINVAL; | |
2779 | } | |
5f9794dc JG |
2780 | #endif |
2781 | ||
e2773c06 RD |
2782 | static inline int ib_copy_from_udata(void *dest, struct ib_udata *udata, size_t len) |
2783 | { | |
2784 | return copy_from_user(dest, udata->inbuf, len) ? -EFAULT : 0; | |
2785 | } | |
2786 | ||
2787 | static inline int ib_copy_to_udata(struct ib_udata *udata, void *src, size_t len) | |
2788 | { | |
43c61165 | 2789 | return copy_to_user(udata->outbuf, src, len) ? -EFAULT : 0; |
e2773c06 RD |
2790 | } |
2791 | ||
c66db311 MB |
2792 | static inline bool ib_is_buffer_cleared(const void __user *p, |
2793 | size_t len) | |
301a721e | 2794 | { |
92d27ae6 | 2795 | bool ret; |
301a721e MB |
2796 | u8 *buf; |
2797 | ||
2798 | if (len > USHRT_MAX) | |
2799 | return false; | |
2800 | ||
92d27ae6 ME |
2801 | buf = memdup_user(p, len); |
2802 | if (IS_ERR(buf)) | |
301a721e MB |
2803 | return false; |
2804 | ||
301a721e | 2805 | ret = !memchr_inv(buf, 0, len); |
301a721e MB |
2806 | kfree(buf); |
2807 | return ret; | |
2808 | } | |
2809 | ||
c66db311 MB |
2810 | static inline bool ib_is_udata_cleared(struct ib_udata *udata, |
2811 | size_t offset, | |
2812 | size_t len) | |
2813 | { | |
2814 | return ib_is_buffer_cleared(udata->inbuf + offset, len); | |
2815 | } | |
2816 | ||
1c77483e YH |
2817 | /** |
2818 | * ib_is_destroy_retryable - Check whether the uobject destruction | |
2819 | * is retryable. | |
2820 | * @ret: The initial destruction return code | |
2821 | * @why: remove reason | |
2822 | * @uobj: The uobject that is destroyed | |
2823 | * | |
2824 | * This function is a helper function that IB layer and low-level drivers | |
2825 | * can use to consider whether the destruction of the given uobject is | |
2826 | * retry-able. | |
2827 | * It checks the original return code, if it wasn't success the destruction | |
2828 | * is retryable according to the ucontext state (i.e. cleanup_retryable) and | |
2829 | * the remove reason. (i.e. why). | |
2830 | * Must be called with the object locked for destroy. | |
2831 | */ | |
2832 | static inline bool ib_is_destroy_retryable(int ret, enum rdma_remove_reason why, | |
2833 | struct ib_uobject *uobj) | |
2834 | { | |
2835 | return ret && (why == RDMA_REMOVE_DESTROY || | |
2836 | uobj->context->cleanup_retryable); | |
2837 | } | |
2838 | ||
2839 | /** | |
2840 | * ib_destroy_usecnt - Called during destruction to check the usecnt | |
2841 | * @usecnt: The usecnt atomic | |
2842 | * @why: remove reason | |
2843 | * @uobj: The uobject that is destroyed | |
2844 | * | |
2845 | * Non-zero usecnts will block destruction unless destruction was triggered by | |
2846 | * a ucontext cleanup. | |
2847 | */ | |
2848 | static inline int ib_destroy_usecnt(atomic_t *usecnt, | |
2849 | enum rdma_remove_reason why, | |
2850 | struct ib_uobject *uobj) | |
2851 | { | |
2852 | if (atomic_read(usecnt) && ib_is_destroy_retryable(-EBUSY, why, uobj)) | |
2853 | return -EBUSY; | |
2854 | return 0; | |
2855 | } | |
2856 | ||
8a51866f RD |
2857 | /** |
2858 | * ib_modify_qp_is_ok - Check that the supplied attribute mask | |
2859 | * contains all required attributes and no attributes not allowed for | |
2860 | * the given QP state transition. | |
2861 | * @cur_state: Current QP state | |
2862 | * @next_state: Next QP state | |
2863 | * @type: QP type | |
2864 | * @mask: Mask of supplied QP attributes | |
2865 | * | |
2866 | * This function is a helper function that a low-level driver's | |
2867 | * modify_qp method can use to validate the consumer's input. It | |
2868 | * checks that cur_state and next_state are valid QP states, that a | |
2869 | * transition from cur_state to next_state is allowed by the IB spec, | |
2870 | * and that the attribute mask supplied is allowed for the transition. | |
2871 | */ | |
19b1f540 | 2872 | bool ib_modify_qp_is_ok(enum ib_qp_state cur_state, enum ib_qp_state next_state, |
d31131bb | 2873 | enum ib_qp_type type, enum ib_qp_attr_mask mask); |
8a51866f | 2874 | |
dcc9881e LR |
2875 | void ib_register_event_handler(struct ib_event_handler *event_handler); |
2876 | void ib_unregister_event_handler(struct ib_event_handler *event_handler); | |
1da177e4 LT |
2877 | void ib_dispatch_event(struct ib_event *event); |
2878 | ||
1da177e4 LT |
2879 | int ib_query_port(struct ib_device *device, |
2880 | u8 port_num, struct ib_port_attr *port_attr); | |
2881 | ||
a3f5adaf EC |
2882 | enum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device, |
2883 | u8 port_num); | |
2884 | ||
4139032b HR |
2885 | /** |
2886 | * rdma_cap_ib_switch - Check if the device is IB switch | |
2887 | * @device: Device to check | |
2888 | * | |
2889 | * Device driver is responsible for setting is_switch bit on | |
2890 | * in ib_device structure at init time. | |
2891 | * | |
2892 | * Return: true if the device is IB switch. | |
2893 | */ | |
2894 | static inline bool rdma_cap_ib_switch(const struct ib_device *device) | |
2895 | { | |
2896 | return device->is_switch; | |
2897 | } | |
2898 | ||
0cf18d77 IW |
2899 | /** |
2900 | * rdma_start_port - Return the first valid port number for the device | |
2901 | * specified | |
2902 | * | |
2903 | * @device: Device to be checked | |
2904 | * | |
2905 | * Return start port number | |
2906 | */ | |
2907 | static inline u8 rdma_start_port(const struct ib_device *device) | |
2908 | { | |
4139032b | 2909 | return rdma_cap_ib_switch(device) ? 0 : 1; |
0cf18d77 IW |
2910 | } |
2911 | ||
ea1075ed JG |
2912 | /** |
2913 | * rdma_for_each_port - Iterate over all valid port numbers of the IB device | |
2914 | * @device - The struct ib_device * to iterate over | |
2915 | * @iter - The unsigned int to store the port number | |
2916 | */ | |
2917 | #define rdma_for_each_port(device, iter) \ | |
2918 | for (iter = rdma_start_port(device + BUILD_BUG_ON_ZERO(!__same_type( \ | |
2919 | unsigned int, iter))); \ | |
2920 | iter <= rdma_end_port(device); (iter)++) | |
2921 | ||
0cf18d77 IW |
2922 | /** |
2923 | * rdma_end_port - Return the last valid port number for the device | |
2924 | * specified | |
2925 | * | |
2926 | * @device: Device to be checked | |
2927 | * | |
2928 | * Return last port number | |
2929 | */ | |
2930 | static inline u8 rdma_end_port(const struct ib_device *device) | |
2931 | { | |
4139032b | 2932 | return rdma_cap_ib_switch(device) ? 0 : device->phys_port_cnt; |
0cf18d77 IW |
2933 | } |
2934 | ||
24dc831b YS |
2935 | static inline int rdma_is_port_valid(const struct ib_device *device, |
2936 | unsigned int port) | |
2937 | { | |
2938 | return (port >= rdma_start_port(device) && | |
2939 | port <= rdma_end_port(device)); | |
2940 | } | |
2941 | ||
b02289b3 AK |
2942 | static inline bool rdma_is_grh_required(const struct ib_device *device, |
2943 | u8 port_num) | |
2944 | { | |
8ceb1357 JG |
2945 | return device->port_data[port_num].immutable.core_cap_flags & |
2946 | RDMA_CORE_PORT_IB_GRH_REQUIRED; | |
b02289b3 AK |
2947 | } |
2948 | ||
5ede9289 | 2949 | static inline bool rdma_protocol_ib(const struct ib_device *device, u8 port_num) |
de66be94 | 2950 | { |
8ceb1357 JG |
2951 | return device->port_data[port_num].immutable.core_cap_flags & |
2952 | RDMA_CORE_CAP_PROT_IB; | |
de66be94 MW |
2953 | } |
2954 | ||
5ede9289 | 2955 | static inline bool rdma_protocol_roce(const struct ib_device *device, u8 port_num) |
7766a99f | 2956 | { |
8ceb1357 JG |
2957 | return device->port_data[port_num].immutable.core_cap_flags & |
2958 | (RDMA_CORE_CAP_PROT_ROCE | RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP); | |
7766a99f MB |
2959 | } |
2960 | ||
2961 | static inline bool rdma_protocol_roce_udp_encap(const struct ib_device *device, u8 port_num) | |
2962 | { | |
8ceb1357 JG |
2963 | return device->port_data[port_num].immutable.core_cap_flags & |
2964 | RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP; | |
7766a99f MB |
2965 | } |
2966 | ||
2967 | static inline bool rdma_protocol_roce_eth_encap(const struct ib_device *device, u8 port_num) | |
de66be94 | 2968 | { |
8ceb1357 JG |
2969 | return device->port_data[port_num].immutable.core_cap_flags & |
2970 | RDMA_CORE_CAP_PROT_ROCE; | |
de66be94 MW |
2971 | } |
2972 | ||
5ede9289 | 2973 | static inline bool rdma_protocol_iwarp(const struct ib_device *device, u8 port_num) |
de66be94 | 2974 | { |
8ceb1357 JG |
2975 | return device->port_data[port_num].immutable.core_cap_flags & |
2976 | RDMA_CORE_CAP_PROT_IWARP; | |
de66be94 MW |
2977 | } |
2978 | ||
5ede9289 | 2979 | static inline bool rdma_ib_or_roce(const struct ib_device *device, u8 port_num) |
de66be94 | 2980 | { |
7766a99f MB |
2981 | return rdma_protocol_ib(device, port_num) || |
2982 | rdma_protocol_roce(device, port_num); | |
de66be94 MW |
2983 | } |
2984 | ||
aa773bd4 OG |
2985 | static inline bool rdma_protocol_raw_packet(const struct ib_device *device, u8 port_num) |
2986 | { | |
8ceb1357 JG |
2987 | return device->port_data[port_num].immutable.core_cap_flags & |
2988 | RDMA_CORE_CAP_PROT_RAW_PACKET; | |
aa773bd4 OG |
2989 | } |
2990 | ||
ce1e055f OG |
2991 | static inline bool rdma_protocol_usnic(const struct ib_device *device, u8 port_num) |
2992 | { | |
8ceb1357 JG |
2993 | return device->port_data[port_num].immutable.core_cap_flags & |
2994 | RDMA_CORE_CAP_PROT_USNIC; | |
ce1e055f OG |
2995 | } |
2996 | ||
c757dea8 | 2997 | /** |
296ec009 | 2998 | * rdma_cap_ib_mad - Check if the port of a device supports Infiniband |
c757dea8 | 2999 | * Management Datagrams. |
296ec009 MW |
3000 | * @device: Device to check |
3001 | * @port_num: Port number to check | |
c757dea8 | 3002 | * |
296ec009 MW |
3003 | * Management Datagrams (MAD) are a required part of the InfiniBand |
3004 | * specification and are supported on all InfiniBand devices. A slightly | |
3005 | * extended version are also supported on OPA interfaces. | |
c757dea8 | 3006 | * |
296ec009 | 3007 | * Return: true if the port supports sending/receiving of MAD packets. |
c757dea8 | 3008 | */ |
5ede9289 | 3009 | static inline bool rdma_cap_ib_mad(const struct ib_device *device, u8 port_num) |
c757dea8 | 3010 | { |
8ceb1357 JG |
3011 | return device->port_data[port_num].immutable.core_cap_flags & |
3012 | RDMA_CORE_CAP_IB_MAD; | |
c757dea8 MW |
3013 | } |
3014 | ||
65995fee IW |
3015 | /** |
3016 | * rdma_cap_opa_mad - Check if the port of device provides support for OPA | |
3017 | * Management Datagrams. | |
3018 | * @device: Device to check | |
3019 | * @port_num: Port number to check | |
3020 | * | |
3021 | * Intel OmniPath devices extend and/or replace the InfiniBand Management | |
3022 | * datagrams with their own versions. These OPA MADs share many but not all of | |
3023 | * the characteristics of InfiniBand MADs. | |
3024 | * | |
3025 | * OPA MADs differ in the following ways: | |
3026 | * | |
3027 | * 1) MADs are variable size up to 2K | |
3028 | * IBTA defined MADs remain fixed at 256 bytes | |
3029 | * 2) OPA SMPs must carry valid PKeys | |
3030 | * 3) OPA SMP packets are a different format | |
3031 | * | |
3032 | * Return: true if the port supports OPA MAD packet formats. | |
3033 | */ | |
3034 | static inline bool rdma_cap_opa_mad(struct ib_device *device, u8 port_num) | |
3035 | { | |
d3243da8 LR |
3036 | return device->port_data[port_num].immutable.core_cap_flags & |
3037 | RDMA_CORE_CAP_OPA_MAD; | |
65995fee IW |
3038 | } |
3039 | ||
29541e3a | 3040 | /** |
296ec009 MW |
3041 | * rdma_cap_ib_smi - Check if the port of a device provides an Infiniband |
3042 | * Subnet Management Agent (SMA) on the Subnet Management Interface (SMI). | |
3043 | * @device: Device to check | |
3044 | * @port_num: Port number to check | |
29541e3a | 3045 | * |
296ec009 MW |
3046 | * Each InfiniBand node is required to provide a Subnet Management Agent |
3047 | * that the subnet manager can access. Prior to the fabric being fully | |
3048 | * configured by the subnet manager, the SMA is accessed via a well known | |
3049 | * interface called the Subnet Management Interface (SMI). This interface | |
3050 | * uses directed route packets to communicate with the SM to get around the | |
3051 | * chicken and egg problem of the SM needing to know what's on the fabric | |
3052 | * in order to configure the fabric, and needing to configure the fabric in | |
3053 | * order to send packets to the devices on the fabric. These directed | |
3054 | * route packets do not need the fabric fully configured in order to reach | |
3055 | * their destination. The SMI is the only method allowed to send | |
3056 | * directed route packets on an InfiniBand fabric. | |
29541e3a | 3057 | * |
296ec009 | 3058 | * Return: true if the port provides an SMI. |
29541e3a | 3059 | */ |
5ede9289 | 3060 | static inline bool rdma_cap_ib_smi(const struct ib_device *device, u8 port_num) |
29541e3a | 3061 | { |
8ceb1357 JG |
3062 | return device->port_data[port_num].immutable.core_cap_flags & |
3063 | RDMA_CORE_CAP_IB_SMI; | |
29541e3a MW |
3064 | } |
3065 | ||
72219cea MW |
3066 | /** |
3067 | * rdma_cap_ib_cm - Check if the port of device has the capability Infiniband | |
3068 | * Communication Manager. | |
296ec009 MW |
3069 | * @device: Device to check |
3070 | * @port_num: Port number to check | |
72219cea | 3071 | * |
296ec009 MW |
3072 | * The InfiniBand Communication Manager is one of many pre-defined General |
3073 | * Service Agents (GSA) that are accessed via the General Service | |
3074 | * Interface (GSI). It's role is to facilitate establishment of connections | |
3075 | * between nodes as well as other management related tasks for established | |
3076 | * connections. | |
72219cea | 3077 | * |
296ec009 MW |
3078 | * Return: true if the port supports an IB CM (this does not guarantee that |
3079 | * a CM is actually running however). | |
72219cea | 3080 | */ |
5ede9289 | 3081 | static inline bool rdma_cap_ib_cm(const struct ib_device *device, u8 port_num) |
72219cea | 3082 | { |
8ceb1357 JG |
3083 | return device->port_data[port_num].immutable.core_cap_flags & |
3084 | RDMA_CORE_CAP_IB_CM; | |
72219cea MW |
3085 | } |
3086 | ||
04215330 MW |
3087 | /** |
3088 | * rdma_cap_iw_cm - Check if the port of device has the capability IWARP | |
3089 | * Communication Manager. | |
296ec009 MW |
3090 | * @device: Device to check |
3091 | * @port_num: Port number to check | |
04215330 | 3092 | * |
296ec009 MW |
3093 | * Similar to above, but specific to iWARP connections which have a different |
3094 | * managment protocol than InfiniBand. | |
04215330 | 3095 | * |
296ec009 MW |
3096 | * Return: true if the port supports an iWARP CM (this does not guarantee that |
3097 | * a CM is actually running however). | |
04215330 | 3098 | */ |
5ede9289 | 3099 | static inline bool rdma_cap_iw_cm(const struct ib_device *device, u8 port_num) |
04215330 | 3100 | { |
8ceb1357 JG |
3101 | return device->port_data[port_num].immutable.core_cap_flags & |
3102 | RDMA_CORE_CAP_IW_CM; | |
04215330 MW |
3103 | } |
3104 | ||
fe53ba2f MW |
3105 | /** |
3106 | * rdma_cap_ib_sa - Check if the port of device has the capability Infiniband | |
3107 | * Subnet Administration. | |
296ec009 MW |
3108 | * @device: Device to check |
3109 | * @port_num: Port number to check | |
fe53ba2f | 3110 | * |
296ec009 MW |
3111 | * An InfiniBand Subnet Administration (SA) service is a pre-defined General |
3112 | * Service Agent (GSA) provided by the Subnet Manager (SM). On InfiniBand | |
3113 | * fabrics, devices should resolve routes to other hosts by contacting the | |
3114 | * SA to query the proper route. | |
fe53ba2f | 3115 | * |
296ec009 MW |
3116 | * Return: true if the port should act as a client to the fabric Subnet |
3117 | * Administration interface. This does not imply that the SA service is | |
3118 | * running locally. | |
fe53ba2f | 3119 | */ |
5ede9289 | 3120 | static inline bool rdma_cap_ib_sa(const struct ib_device *device, u8 port_num) |
fe53ba2f | 3121 | { |
8ceb1357 JG |
3122 | return device->port_data[port_num].immutable.core_cap_flags & |
3123 | RDMA_CORE_CAP_IB_SA; | |
fe53ba2f MW |
3124 | } |
3125 | ||
a31ad3b0 MW |
3126 | /** |
3127 | * rdma_cap_ib_mcast - Check if the port of device has the capability Infiniband | |
3128 | * Multicast. | |
296ec009 MW |
3129 | * @device: Device to check |
3130 | * @port_num: Port number to check | |
a31ad3b0 | 3131 | * |
296ec009 MW |
3132 | * InfiniBand multicast registration is more complex than normal IPv4 or |
3133 | * IPv6 multicast registration. Each Host Channel Adapter must register | |
3134 | * with the Subnet Manager when it wishes to join a multicast group. It | |
3135 | * should do so only once regardless of how many queue pairs it subscribes | |
3136 | * to this group. And it should leave the group only after all queue pairs | |
3137 | * attached to the group have been detached. | |
a31ad3b0 | 3138 | * |
296ec009 MW |
3139 | * Return: true if the port must undertake the additional adminstrative |
3140 | * overhead of registering/unregistering with the SM and tracking of the | |
3141 | * total number of queue pairs attached to the multicast group. | |
a31ad3b0 | 3142 | */ |
5ede9289 | 3143 | static inline bool rdma_cap_ib_mcast(const struct ib_device *device, u8 port_num) |
a31ad3b0 MW |
3144 | { |
3145 | return rdma_cap_ib_sa(device, port_num); | |
3146 | } | |
3147 | ||
30a74ef4 MW |
3148 | /** |
3149 | * rdma_cap_af_ib - Check if the port of device has the capability | |
3150 | * Native Infiniband Address. | |
296ec009 MW |
3151 | * @device: Device to check |
3152 | * @port_num: Port number to check | |
30a74ef4 | 3153 | * |
296ec009 MW |
3154 | * InfiniBand addressing uses a port's GUID + Subnet Prefix to make a default |
3155 | * GID. RoCE uses a different mechanism, but still generates a GID via | |
3156 | * a prescribed mechanism and port specific data. | |
30a74ef4 | 3157 | * |
296ec009 MW |
3158 | * Return: true if the port uses a GID address to identify devices on the |
3159 | * network. | |
30a74ef4 | 3160 | */ |
5ede9289 | 3161 | static inline bool rdma_cap_af_ib(const struct ib_device *device, u8 port_num) |
30a74ef4 | 3162 | { |
8ceb1357 JG |
3163 | return device->port_data[port_num].immutable.core_cap_flags & |
3164 | RDMA_CORE_CAP_AF_IB; | |
30a74ef4 MW |
3165 | } |
3166 | ||
227128fc MW |
3167 | /** |
3168 | * rdma_cap_eth_ah - Check if the port of device has the capability | |
296ec009 MW |
3169 | * Ethernet Address Handle. |
3170 | * @device: Device to check | |
3171 | * @port_num: Port number to check | |
227128fc | 3172 | * |
296ec009 MW |
3173 | * RoCE is InfiniBand over Ethernet, and it uses a well defined technique |
3174 | * to fabricate GIDs over Ethernet/IP specific addresses native to the | |
3175 | * port. Normally, packet headers are generated by the sending host | |
3176 | * adapter, but when sending connectionless datagrams, we must manually | |
3177 | * inject the proper headers for the fabric we are communicating over. | |
227128fc | 3178 | * |
296ec009 MW |
3179 | * Return: true if we are running as a RoCE port and must force the |
3180 | * addition of a Global Route Header built from our Ethernet Address | |
3181 | * Handle into our header list for connectionless packets. | |
227128fc | 3182 | */ |
5ede9289 | 3183 | static inline bool rdma_cap_eth_ah(const struct ib_device *device, u8 port_num) |
227128fc | 3184 | { |
8ceb1357 JG |
3185 | return device->port_data[port_num].immutable.core_cap_flags & |
3186 | RDMA_CORE_CAP_ETH_AH; | |
227128fc MW |
3187 | } |
3188 | ||
94d595c5 DC |
3189 | /** |
3190 | * rdma_cap_opa_ah - Check if the port of device supports | |
3191 | * OPA Address handles | |
3192 | * @device: Device to check | |
3193 | * @port_num: Port number to check | |
3194 | * | |
3195 | * Return: true if we are running on an OPA device which supports | |
3196 | * the extended OPA addressing. | |
3197 | */ | |
3198 | static inline bool rdma_cap_opa_ah(struct ib_device *device, u8 port_num) | |
3199 | { | |
8ceb1357 | 3200 | return (device->port_data[port_num].immutable.core_cap_flags & |
94d595c5 DC |
3201 | RDMA_CORE_CAP_OPA_AH) == RDMA_CORE_CAP_OPA_AH; |
3202 | } | |
3203 | ||
337877a4 IW |
3204 | /** |
3205 | * rdma_max_mad_size - Return the max MAD size required by this RDMA Port. | |
3206 | * | |
3207 | * @device: Device | |
3208 | * @port_num: Port number | |
3209 | * | |
3210 | * This MAD size includes the MAD headers and MAD payload. No other headers | |
3211 | * are included. | |
3212 | * | |
3213 | * Return the max MAD size required by the Port. Will return 0 if the port | |
3214 | * does not support MADs | |
3215 | */ | |
3216 | static inline size_t rdma_max_mad_size(const struct ib_device *device, u8 port_num) | |
3217 | { | |
8ceb1357 | 3218 | return device->port_data[port_num].immutable.max_mad_size; |
337877a4 IW |
3219 | } |
3220 | ||
03db3a2d MB |
3221 | /** |
3222 | * rdma_cap_roce_gid_table - Check if the port of device uses roce_gid_table | |
3223 | * @device: Device to check | |
3224 | * @port_num: Port number to check | |
3225 | * | |
3226 | * RoCE GID table mechanism manages the various GIDs for a device. | |
3227 | * | |
3228 | * NOTE: if allocating the port's GID table has failed, this call will still | |
3229 | * return true, but any RoCE GID table API will fail. | |
3230 | * | |
3231 | * Return: true if the port uses RoCE GID table mechanism in order to manage | |
3232 | * its GIDs. | |
3233 | */ | |
3234 | static inline bool rdma_cap_roce_gid_table(const struct ib_device *device, | |
3235 | u8 port_num) | |
3236 | { | |
3237 | return rdma_protocol_roce(device, port_num) && | |
3023a1e9 | 3238 | device->ops.add_gid && device->ops.del_gid; |
03db3a2d MB |
3239 | } |
3240 | ||
002516ed CH |
3241 | /* |
3242 | * Check if the device supports READ W/ INVALIDATE. | |
3243 | */ | |
3244 | static inline bool rdma_cap_read_inv(struct ib_device *dev, u32 port_num) | |
3245 | { | |
3246 | /* | |
3247 | * iWarp drivers must support READ W/ INVALIDATE. No other protocol | |
3248 | * has support for it yet. | |
3249 | */ | |
3250 | return rdma_protocol_iwarp(dev, port_num); | |
3251 | } | |
3252 | ||
50174a7f EC |
3253 | int ib_set_vf_link_state(struct ib_device *device, int vf, u8 port, |
3254 | int state); | |
3255 | int ib_get_vf_config(struct ib_device *device, int vf, u8 port, | |
3256 | struct ifla_vf_info *info); | |
3257 | int ib_get_vf_stats(struct ib_device *device, int vf, u8 port, | |
3258 | struct ifla_vf_stats *stats); | |
3259 | int ib_set_vf_guid(struct ib_device *device, int vf, u8 port, u64 guid, | |
3260 | int type); | |
3261 | ||
1da177e4 LT |
3262 | int ib_query_pkey(struct ib_device *device, |
3263 | u8 port_num, u16 index, u16 *pkey); | |
3264 | ||
3265 | int ib_modify_device(struct ib_device *device, | |
3266 | int device_modify_mask, | |
3267 | struct ib_device_modify *device_modify); | |
3268 | ||
3269 | int ib_modify_port(struct ib_device *device, | |
3270 | u8 port_num, int port_modify_mask, | |
3271 | struct ib_port_modify *port_modify); | |
3272 | ||
5eb620c8 | 3273 | int ib_find_gid(struct ib_device *device, union ib_gid *gid, |
b26c4a11 | 3274 | u8 *port_num, u16 *index); |
5eb620c8 YE |
3275 | |
3276 | int ib_find_pkey(struct ib_device *device, | |
3277 | u8 port_num, u16 pkey, u16 *index); | |
3278 | ||
ed082d36 CH |
3279 | enum ib_pd_flags { |
3280 | /* | |
3281 | * Create a memory registration for all memory in the system and place | |
3282 | * the rkey for it into pd->unsafe_global_rkey. This can be used by | |
3283 | * ULPs to avoid the overhead of dynamic MRs. | |
3284 | * | |
3285 | * This flag is generally considered unsafe and must only be used in | |
3286 | * extremly trusted environments. Every use of it will log a warning | |
3287 | * in the kernel log. | |
3288 | */ | |
3289 | IB_PD_UNSAFE_GLOBAL_RKEY = 0x01, | |
3290 | }; | |
1da177e4 | 3291 | |
ed082d36 CH |
3292 | struct ib_pd *__ib_alloc_pd(struct ib_device *device, unsigned int flags, |
3293 | const char *caller); | |
c4367a26 | 3294 | |
ed082d36 | 3295 | #define ib_alloc_pd(device, flags) \ |
e4496447 | 3296 | __ib_alloc_pd((device), (flags), KBUILD_MODNAME) |
c4367a26 SR |
3297 | |
3298 | /** | |
3299 | * ib_dealloc_pd_user - Deallocate kernel/user PD | |
3300 | * @pd: The protection domain | |
3301 | * @udata: Valid user data or NULL for kernel objects | |
3302 | */ | |
3303 | void ib_dealloc_pd_user(struct ib_pd *pd, struct ib_udata *udata); | |
3304 | ||
3305 | /** | |
3306 | * ib_dealloc_pd - Deallocate kernel PD | |
3307 | * @pd: The protection domain | |
3308 | * | |
3309 | * NOTE: for user PD use ib_dealloc_pd_user with valid udata! | |
3310 | */ | |
3311 | static inline void ib_dealloc_pd(struct ib_pd *pd) | |
3312 | { | |
3313 | ib_dealloc_pd_user(pd, NULL); | |
3314 | } | |
1da177e4 | 3315 | |
b090c4e3 GP |
3316 | enum rdma_create_ah_flags { |
3317 | /* In a sleepable context */ | |
3318 | RDMA_CREATE_AH_SLEEPABLE = BIT(0), | |
3319 | }; | |
3320 | ||
1da177e4 | 3321 | /** |
0a18cfe4 | 3322 | * rdma_create_ah - Creates an address handle for the given address vector. |
1da177e4 LT |
3323 | * @pd: The protection domain associated with the address handle. |
3324 | * @ah_attr: The attributes of the address vector. | |
b090c4e3 | 3325 | * @flags: Create address handle flags (see enum rdma_create_ah_flags). |
1da177e4 LT |
3326 | * |
3327 | * The address handle is used to reference a local or global destination | |
3328 | * in all UD QP post sends. | |
3329 | */ | |
b090c4e3 GP |
3330 | struct ib_ah *rdma_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr, |
3331 | u32 flags); | |
1da177e4 | 3332 | |
5cda6587 PP |
3333 | /** |
3334 | * rdma_create_user_ah - Creates an address handle for the given address vector. | |
3335 | * It resolves destination mac address for ah attribute of RoCE type. | |
3336 | * @pd: The protection domain associated with the address handle. | |
3337 | * @ah_attr: The attributes of the address vector. | |
3338 | * @udata: pointer to user's input output buffer information need by | |
3339 | * provider driver. | |
3340 | * | |
3341 | * It returns 0 on success and returns appropriate error code on error. | |
3342 | * The address handle is used to reference a local or global destination | |
3343 | * in all UD QP post sends. | |
3344 | */ | |
3345 | struct ib_ah *rdma_create_user_ah(struct ib_pd *pd, | |
3346 | struct rdma_ah_attr *ah_attr, | |
3347 | struct ib_udata *udata); | |
850d8fd7 MS |
3348 | /** |
3349 | * ib_get_gids_from_rdma_hdr - Get sgid and dgid from GRH or IPv4 header | |
3350 | * work completion. | |
3351 | * @hdr: the L3 header to parse | |
3352 | * @net_type: type of header to parse | |
3353 | * @sgid: place to store source gid | |
3354 | * @dgid: place to store destination gid | |
3355 | */ | |
3356 | int ib_get_gids_from_rdma_hdr(const union rdma_network_hdr *hdr, | |
3357 | enum rdma_network_type net_type, | |
3358 | union ib_gid *sgid, union ib_gid *dgid); | |
3359 | ||
3360 | /** | |
3361 | * ib_get_rdma_header_version - Get the header version | |
3362 | * @hdr: the L3 header to parse | |
3363 | */ | |
3364 | int ib_get_rdma_header_version(const union rdma_network_hdr *hdr); | |
3365 | ||
4e00d694 | 3366 | /** |
f6bdb142 | 3367 | * ib_init_ah_attr_from_wc - Initializes address handle attributes from a |
4e00d694 SH |
3368 | * work completion. |
3369 | * @device: Device on which the received message arrived. | |
3370 | * @port_num: Port on which the received message arrived. | |
3371 | * @wc: Work completion associated with the received message. | |
3372 | * @grh: References the received global route header. This parameter is | |
3373 | * ignored unless the work completion indicates that the GRH is valid. | |
3374 | * @ah_attr: Returned attributes that can be used when creating an address | |
3375 | * handle for replying to the message. | |
b7403217 PP |
3376 | * When ib_init_ah_attr_from_wc() returns success, |
3377 | * (a) for IB link layer it optionally contains a reference to SGID attribute | |
3378 | * when GRH is present for IB link layer. | |
3379 | * (b) for RoCE link layer it contains a reference to SGID attribute. | |
3380 | * User must invoke rdma_cleanup_ah_attr_gid_attr() to release reference to SGID | |
3381 | * attributes which are initialized using ib_init_ah_attr_from_wc(). | |
3382 | * | |
4e00d694 | 3383 | */ |
f6bdb142 PP |
3384 | int ib_init_ah_attr_from_wc(struct ib_device *device, u8 port_num, |
3385 | const struct ib_wc *wc, const struct ib_grh *grh, | |
3386 | struct rdma_ah_attr *ah_attr); | |
4e00d694 | 3387 | |
513789ed HR |
3388 | /** |
3389 | * ib_create_ah_from_wc - Creates an address handle associated with the | |
3390 | * sender of the specified work completion. | |
3391 | * @pd: The protection domain associated with the address handle. | |
3392 | * @wc: Work completion information associated with a received message. | |
3393 | * @grh: References the received global route header. This parameter is | |
3394 | * ignored unless the work completion indicates that the GRH is valid. | |
3395 | * @port_num: The outbound port number to associate with the address. | |
3396 | * | |
3397 | * The address handle is used to reference a local or global destination | |
3398 | * in all UD QP post sends. | |
3399 | */ | |
73cdaaee IW |
3400 | struct ib_ah *ib_create_ah_from_wc(struct ib_pd *pd, const struct ib_wc *wc, |
3401 | const struct ib_grh *grh, u8 port_num); | |
513789ed | 3402 | |
1da177e4 | 3403 | /** |
67b985b6 | 3404 | * rdma_modify_ah - Modifies the address vector associated with an address |
1da177e4 LT |
3405 | * handle. |
3406 | * @ah: The address handle to modify. | |
3407 | * @ah_attr: The new address vector attributes to associate with the | |
3408 | * address handle. | |
3409 | */ | |
67b985b6 | 3410 | int rdma_modify_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr); |
1da177e4 LT |
3411 | |
3412 | /** | |
bfbfd661 | 3413 | * rdma_query_ah - Queries the address vector associated with an address |
1da177e4 LT |
3414 | * handle. |
3415 | * @ah: The address handle to query. | |
3416 | * @ah_attr: The address vector attributes associated with the address | |
3417 | * handle. | |
3418 | */ | |
bfbfd661 | 3419 | int rdma_query_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr); |
1da177e4 | 3420 | |
2553ba21 GP |
3421 | enum rdma_destroy_ah_flags { |
3422 | /* In a sleepable context */ | |
3423 | RDMA_DESTROY_AH_SLEEPABLE = BIT(0), | |
3424 | }; | |
3425 | ||
1da177e4 | 3426 | /** |
c4367a26 | 3427 | * rdma_destroy_ah_user - Destroys an address handle. |
1da177e4 | 3428 | * @ah: The address handle to destroy. |
2553ba21 | 3429 | * @flags: Destroy address handle flags (see enum rdma_destroy_ah_flags). |
c4367a26 | 3430 | * @udata: Valid user data or NULL for kernel objects |
1da177e4 | 3431 | */ |
c4367a26 SR |
3432 | int rdma_destroy_ah_user(struct ib_ah *ah, u32 flags, struct ib_udata *udata); |
3433 | ||
3434 | /** | |
3435 | * rdma_destroy_ah - Destroys an kernel address handle. | |
3436 | * @ah: The address handle to destroy. | |
3437 | * @flags: Destroy address handle flags (see enum rdma_destroy_ah_flags). | |
3438 | * | |
3439 | * NOTE: for user ah use rdma_destroy_ah_user with valid udata! | |
3440 | */ | |
3441 | static inline int rdma_destroy_ah(struct ib_ah *ah, u32 flags) | |
3442 | { | |
3443 | return rdma_destroy_ah_user(ah, flags, NULL); | |
3444 | } | |
1da177e4 | 3445 | |
d41fcc67 RD |
3446 | /** |
3447 | * ib_create_srq - Creates a SRQ associated with the specified protection | |
3448 | * domain. | |
3449 | * @pd: The protection domain associated with the SRQ. | |
abb6e9ba DB |
3450 | * @srq_init_attr: A list of initial attributes required to create the |
3451 | * SRQ. If SRQ creation succeeds, then the attributes are updated to | |
3452 | * the actual capabilities of the created SRQ. | |
d41fcc67 RD |
3453 | * |
3454 | * srq_attr->max_wr and srq_attr->max_sge are read the determine the | |
3455 | * requested size of the SRQ, and set to the actual values allocated | |
3456 | * on return. If ib_create_srq() succeeds, then max_wr and max_sge | |
3457 | * will always be at least as large as the requested values. | |
3458 | */ | |
3459 | struct ib_srq *ib_create_srq(struct ib_pd *pd, | |
3460 | struct ib_srq_init_attr *srq_init_attr); | |
3461 | ||
3462 | /** | |
3463 | * ib_modify_srq - Modifies the attributes for the specified SRQ. | |
3464 | * @srq: The SRQ to modify. | |
3465 | * @srq_attr: On input, specifies the SRQ attributes to modify. On output, | |
3466 | * the current values of selected SRQ attributes are returned. | |
3467 | * @srq_attr_mask: A bit-mask used to specify which attributes of the SRQ | |
3468 | * are being modified. | |
3469 | * | |
3470 | * The mask may contain IB_SRQ_MAX_WR to resize the SRQ and/or | |
3471 | * IB_SRQ_LIMIT to set the SRQ's limit and request notification when | |
3472 | * the number of receives queued drops below the limit. | |
3473 | */ | |
3474 | int ib_modify_srq(struct ib_srq *srq, | |
3475 | struct ib_srq_attr *srq_attr, | |
3476 | enum ib_srq_attr_mask srq_attr_mask); | |
3477 | ||
3478 | /** | |
3479 | * ib_query_srq - Returns the attribute list and current values for the | |
3480 | * specified SRQ. | |
3481 | * @srq: The SRQ to query. | |
3482 | * @srq_attr: The attributes of the specified SRQ. | |
3483 | */ | |
3484 | int ib_query_srq(struct ib_srq *srq, | |
3485 | struct ib_srq_attr *srq_attr); | |
3486 | ||
3487 | /** | |
c4367a26 SR |
3488 | * ib_destroy_srq_user - Destroys the specified SRQ. |
3489 | * @srq: The SRQ to destroy. | |
3490 | * @udata: Valid user data or NULL for kernel objects | |
3491 | */ | |
3492 | int ib_destroy_srq_user(struct ib_srq *srq, struct ib_udata *udata); | |
3493 | ||
3494 | /** | |
3495 | * ib_destroy_srq - Destroys the specified kernel SRQ. | |
d41fcc67 | 3496 | * @srq: The SRQ to destroy. |
c4367a26 SR |
3497 | * |
3498 | * NOTE: for user srq use ib_destroy_srq_user with valid udata! | |
d41fcc67 | 3499 | */ |
c4367a26 SR |
3500 | static inline int ib_destroy_srq(struct ib_srq *srq) |
3501 | { | |
3502 | return ib_destroy_srq_user(srq, NULL); | |
3503 | } | |
d41fcc67 RD |
3504 | |
3505 | /** | |
3506 | * ib_post_srq_recv - Posts a list of work requests to the specified SRQ. | |
3507 | * @srq: The SRQ to post the work request on. | |
3508 | * @recv_wr: A list of work requests to post on the receive queue. | |
3509 | * @bad_recv_wr: On an immediate failure, this parameter will reference | |
3510 | * the work request that failed to be posted on the QP. | |
3511 | */ | |
3512 | static inline int ib_post_srq_recv(struct ib_srq *srq, | |
d34ac5cd BVA |
3513 | const struct ib_recv_wr *recv_wr, |
3514 | const struct ib_recv_wr **bad_recv_wr) | |
d41fcc67 | 3515 | { |
d34ac5cd | 3516 | const struct ib_recv_wr *dummy; |
bb039a87 | 3517 | |
3023a1e9 KH |
3518 | return srq->device->ops.post_srq_recv(srq, recv_wr, |
3519 | bad_recv_wr ? : &dummy); | |
d41fcc67 RD |
3520 | } |
3521 | ||
1da177e4 | 3522 | /** |
c4367a26 | 3523 | * ib_create_qp_user - Creates a QP associated with the specified protection |
1da177e4 LT |
3524 | * domain. |
3525 | * @pd: The protection domain associated with the QP. | |
abb6e9ba DB |
3526 | * @qp_init_attr: A list of initial attributes required to create the |
3527 | * QP. If QP creation succeeds, then the attributes are updated to | |
3528 | * the actual capabilities of the created QP. | |
c4367a26 | 3529 | * @udata: Valid user data or NULL for kernel objects |
1da177e4 | 3530 | */ |
c4367a26 SR |
3531 | struct ib_qp *ib_create_qp_user(struct ib_pd *pd, |
3532 | struct ib_qp_init_attr *qp_init_attr, | |
3533 | struct ib_udata *udata); | |
3534 | ||
3535 | /** | |
3536 | * ib_create_qp - Creates a kernel QP associated with the specified protection | |
3537 | * domain. | |
3538 | * @pd: The protection domain associated with the QP. | |
3539 | * @qp_init_attr: A list of initial attributes required to create the | |
3540 | * QP. If QP creation succeeds, then the attributes are updated to | |
3541 | * the actual capabilities of the created QP. | |
3542 | * @udata: Valid user data or NULL for kernel objects | |
3543 | * | |
3544 | * NOTE: for user qp use ib_create_qp_user with valid udata! | |
3545 | */ | |
3546 | static inline struct ib_qp *ib_create_qp(struct ib_pd *pd, | |
3547 | struct ib_qp_init_attr *qp_init_attr) | |
3548 | { | |
3549 | return ib_create_qp_user(pd, qp_init_attr, NULL); | |
3550 | } | |
1da177e4 | 3551 | |
a512c2fb PP |
3552 | /** |
3553 | * ib_modify_qp_with_udata - Modifies the attributes for the specified QP. | |
3554 | * @qp: The QP to modify. | |
3555 | * @attr: On input, specifies the QP attributes to modify. On output, | |
3556 | * the current values of selected QP attributes are returned. | |
3557 | * @attr_mask: A bit-mask used to specify which attributes of the QP | |
3558 | * are being modified. | |
3559 | * @udata: pointer to user's input output buffer information | |
3560 | * are being modified. | |
3561 | * It returns 0 on success and returns appropriate error code on error. | |
3562 | */ | |
3563 | int ib_modify_qp_with_udata(struct ib_qp *qp, | |
3564 | struct ib_qp_attr *attr, | |
3565 | int attr_mask, | |
3566 | struct ib_udata *udata); | |
3567 | ||
1da177e4 LT |
3568 | /** |
3569 | * ib_modify_qp - Modifies the attributes for the specified QP and then | |
3570 | * transitions the QP to the given state. | |
3571 | * @qp: The QP to modify. | |
3572 | * @qp_attr: On input, specifies the QP attributes to modify. On output, | |
3573 | * the current values of selected QP attributes are returned. | |
3574 | * @qp_attr_mask: A bit-mask used to specify which attributes of the QP | |
3575 | * are being modified. | |
3576 | */ | |
3577 | int ib_modify_qp(struct ib_qp *qp, | |
3578 | struct ib_qp_attr *qp_attr, | |
3579 | int qp_attr_mask); | |
3580 | ||
3581 | /** | |
3582 | * ib_query_qp - Returns the attribute list and current values for the | |
3583 | * specified QP. | |
3584 | * @qp: The QP to query. | |
3585 | * @qp_attr: The attributes of the specified QP. | |
3586 | * @qp_attr_mask: A bit-mask used to select specific attributes to query. | |
3587 | * @qp_init_attr: Additional attributes of the selected QP. | |
3588 | * | |
3589 | * The qp_attr_mask may be used to limit the query to gathering only the | |
3590 | * selected attributes. | |
3591 | */ | |
3592 | int ib_query_qp(struct ib_qp *qp, | |
3593 | struct ib_qp_attr *qp_attr, | |
3594 | int qp_attr_mask, | |
3595 | struct ib_qp_init_attr *qp_init_attr); | |
3596 | ||
3597 | /** | |
3598 | * ib_destroy_qp - Destroys the specified QP. | |
3599 | * @qp: The QP to destroy. | |
c4367a26 | 3600 | * @udata: Valid udata or NULL for kernel objects |
1da177e4 | 3601 | */ |
c4367a26 SR |
3602 | int ib_destroy_qp_user(struct ib_qp *qp, struct ib_udata *udata); |
3603 | ||
3604 | /** | |
3605 | * ib_destroy_qp - Destroys the specified kernel QP. | |
3606 | * @qp: The QP to destroy. | |
3607 | * | |
3608 | * NOTE: for user qp use ib_destroy_qp_user with valid udata! | |
3609 | */ | |
3610 | static inline int ib_destroy_qp(struct ib_qp *qp) | |
3611 | { | |
3612 | return ib_destroy_qp_user(qp, NULL); | |
3613 | } | |
1da177e4 | 3614 | |
d3d72d90 | 3615 | /** |
0e0ec7e0 SH |
3616 | * ib_open_qp - Obtain a reference to an existing sharable QP. |
3617 | * @xrcd - XRC domain | |
3618 | * @qp_open_attr: Attributes identifying the QP to open. | |
3619 | * | |
3620 | * Returns a reference to a sharable QP. | |
3621 | */ | |
3622 | struct ib_qp *ib_open_qp(struct ib_xrcd *xrcd, | |
3623 | struct ib_qp_open_attr *qp_open_attr); | |
3624 | ||
3625 | /** | |
3626 | * ib_close_qp - Release an external reference to a QP. | |
d3d72d90 SH |
3627 | * @qp: The QP handle to release |
3628 | * | |
0e0ec7e0 SH |
3629 | * The opened QP handle is released by the caller. The underlying |
3630 | * shared QP is not destroyed until all internal references are released. | |
d3d72d90 | 3631 | */ |
0e0ec7e0 | 3632 | int ib_close_qp(struct ib_qp *qp); |
d3d72d90 | 3633 | |
1da177e4 LT |
3634 | /** |
3635 | * ib_post_send - Posts a list of work requests to the send queue of | |
3636 | * the specified QP. | |
3637 | * @qp: The QP to post the work request on. | |
3638 | * @send_wr: A list of work requests to post on the send queue. | |
3639 | * @bad_send_wr: On an immediate failure, this parameter will reference | |
3640 | * the work request that failed to be posted on the QP. | |
55464d46 BVA |
3641 | * |
3642 | * While IBA Vol. 1 section 11.4.1.1 specifies that if an immediate | |
3643 | * error is returned, the QP state shall not be affected, | |
3644 | * ib_post_send() will return an immediate error after queueing any | |
3645 | * earlier work requests in the list. | |
1da177e4 LT |
3646 | */ |
3647 | static inline int ib_post_send(struct ib_qp *qp, | |
d34ac5cd BVA |
3648 | const struct ib_send_wr *send_wr, |
3649 | const struct ib_send_wr **bad_send_wr) | |
1da177e4 | 3650 | { |
d34ac5cd | 3651 | const struct ib_send_wr *dummy; |
bb039a87 | 3652 | |
3023a1e9 | 3653 | return qp->device->ops.post_send(qp, send_wr, bad_send_wr ? : &dummy); |
1da177e4 LT |
3654 | } |
3655 | ||
3656 | /** | |
3657 | * ib_post_recv - Posts a list of work requests to the receive queue of | |
3658 | * the specified QP. | |
3659 | * @qp: The QP to post the work request on. | |
3660 | * @recv_wr: A list of work requests to post on the receive queue. | |
3661 | * @bad_recv_wr: On an immediate failure, this parameter will reference | |
3662 | * the work request that failed to be posted on the QP. | |
3663 | */ | |
3664 | static inline int ib_post_recv(struct ib_qp *qp, | |
d34ac5cd BVA |
3665 | const struct ib_recv_wr *recv_wr, |
3666 | const struct ib_recv_wr **bad_recv_wr) | |
1da177e4 | 3667 | { |
d34ac5cd | 3668 | const struct ib_recv_wr *dummy; |
bb039a87 | 3669 | |
3023a1e9 | 3670 | return qp->device->ops.post_recv(qp, recv_wr, bad_recv_wr ? : &dummy); |
1da177e4 LT |
3671 | } |
3672 | ||
c4367a26 SR |
3673 | struct ib_cq *__ib_alloc_cq_user(struct ib_device *dev, void *private, |
3674 | int nr_cqe, int comp_vector, | |
3675 | enum ib_poll_context poll_ctx, | |
3676 | const char *caller, struct ib_udata *udata); | |
3677 | ||
3678 | /** | |
3679 | * ib_alloc_cq_user: Allocate kernel/user CQ | |
3680 | * @dev: The IB device | |
3681 | * @private: Private data attached to the CQE | |
3682 | * @nr_cqe: Number of CQEs in the CQ | |
3683 | * @comp_vector: Completion vector used for the IRQs | |
3684 | * @poll_ctx: Context used for polling the CQ | |
3685 | * @udata: Valid user data or NULL for kernel objects | |
3686 | */ | |
3687 | static inline struct ib_cq *ib_alloc_cq_user(struct ib_device *dev, | |
3688 | void *private, int nr_cqe, | |
3689 | int comp_vector, | |
3690 | enum ib_poll_context poll_ctx, | |
3691 | struct ib_udata *udata) | |
3692 | { | |
3693 | return __ib_alloc_cq_user(dev, private, nr_cqe, comp_vector, poll_ctx, | |
3694 | KBUILD_MODNAME, udata); | |
3695 | } | |
3696 | ||
3697 | /** | |
3698 | * ib_alloc_cq: Allocate kernel CQ | |
3699 | * @dev: The IB device | |
3700 | * @private: Private data attached to the CQE | |
3701 | * @nr_cqe: Number of CQEs in the CQ | |
3702 | * @comp_vector: Completion vector used for the IRQs | |
3703 | * @poll_ctx: Context used for polling the CQ | |
3704 | * | |
3705 | * NOTE: for user cq use ib_alloc_cq_user with valid udata! | |
3706 | */ | |
3707 | static inline struct ib_cq *ib_alloc_cq(struct ib_device *dev, void *private, | |
3708 | int nr_cqe, int comp_vector, | |
3709 | enum ib_poll_context poll_ctx) | |
3710 | { | |
3711 | return ib_alloc_cq_user(dev, private, nr_cqe, comp_vector, poll_ctx, | |
3712 | NULL); | |
3713 | } | |
3714 | ||
3715 | /** | |
3716 | * ib_free_cq_user - Free kernel/user CQ | |
3717 | * @cq: The CQ to free | |
3718 | * @udata: Valid user data or NULL for kernel objects | |
3719 | */ | |
3720 | void ib_free_cq_user(struct ib_cq *cq, struct ib_udata *udata); | |
3721 | ||
3722 | /** | |
3723 | * ib_free_cq - Free kernel CQ | |
3724 | * @cq: The CQ to free | |
3725 | * | |
3726 | * NOTE: for user cq use ib_free_cq_user with valid udata! | |
3727 | */ | |
3728 | static inline void ib_free_cq(struct ib_cq *cq) | |
3729 | { | |
3730 | ib_free_cq_user(cq, NULL); | |
3731 | } | |
f66c8ba4 | 3732 | |
14d3a3b2 CH |
3733 | int ib_process_cq_direct(struct ib_cq *cq, int budget); |
3734 | ||
1da177e4 LT |
3735 | /** |
3736 | * ib_create_cq - Creates a CQ on the specified device. | |
3737 | * @device: The device on which to create the CQ. | |
3738 | * @comp_handler: A user-specified callback that is invoked when a | |
3739 | * completion event occurs on the CQ. | |
3740 | * @event_handler: A user-specified callback that is invoked when an | |
3741 | * asynchronous event not associated with a completion occurs on the CQ. | |
3742 | * @cq_context: Context associated with the CQ returned to the user via | |
3743 | * the associated completion and event handlers. | |
8e37210b | 3744 | * @cq_attr: The attributes the CQ should be created upon. |
1da177e4 LT |
3745 | * |
3746 | * Users can examine the cq structure to determine the actual CQ size. | |
3747 | */ | |
7350cdd0 BP |
3748 | struct ib_cq *__ib_create_cq(struct ib_device *device, |
3749 | ib_comp_handler comp_handler, | |
3750 | void (*event_handler)(struct ib_event *, void *), | |
3751 | void *cq_context, | |
3752 | const struct ib_cq_init_attr *cq_attr, | |
3753 | const char *caller); | |
3754 | #define ib_create_cq(device, cmp_hndlr, evt_hndlr, cq_ctxt, cq_attr) \ | |
3755 | __ib_create_cq((device), (cmp_hndlr), (evt_hndlr), (cq_ctxt), (cq_attr), KBUILD_MODNAME) | |
1da177e4 LT |
3756 | |
3757 | /** | |
3758 | * ib_resize_cq - Modifies the capacity of the CQ. | |
3759 | * @cq: The CQ to resize. | |
3760 | * @cqe: The minimum size of the CQ. | |
3761 | * | |
3762 | * Users can examine the cq structure to determine the actual CQ size. | |
3763 | */ | |
3764 | int ib_resize_cq(struct ib_cq *cq, int cqe); | |
3765 | ||
2dd57162 | 3766 | /** |
4190b4e9 | 3767 | * rdma_set_cq_moderation - Modifies moderation params of the CQ |
2dd57162 EC |
3768 | * @cq: The CQ to modify. |
3769 | * @cq_count: number of CQEs that will trigger an event | |
3770 | * @cq_period: max period of time in usec before triggering an event | |
3771 | * | |
3772 | */ | |
4190b4e9 | 3773 | int rdma_set_cq_moderation(struct ib_cq *cq, u16 cq_count, u16 cq_period); |
2dd57162 | 3774 | |
1da177e4 | 3775 | /** |
c4367a26 | 3776 | * ib_destroy_cq_user - Destroys the specified CQ. |
1da177e4 | 3777 | * @cq: The CQ to destroy. |
c4367a26 | 3778 | * @udata: Valid user data or NULL for kernel objects |
1da177e4 | 3779 | */ |
c4367a26 SR |
3780 | int ib_destroy_cq_user(struct ib_cq *cq, struct ib_udata *udata); |
3781 | ||
3782 | /** | |
3783 | * ib_destroy_cq - Destroys the specified kernel CQ. | |
3784 | * @cq: The CQ to destroy. | |
3785 | * | |
3786 | * NOTE: for user cq use ib_destroy_cq_user with valid udata! | |
3787 | */ | |
3788 | static inline int ib_destroy_cq(struct ib_cq *cq) | |
3789 | { | |
3790 | return ib_destroy_cq_user(cq, NULL); | |
3791 | } | |
1da177e4 LT |
3792 | |
3793 | /** | |
3794 | * ib_poll_cq - poll a CQ for completion(s) | |
3795 | * @cq:the CQ being polled | |
3796 | * @num_entries:maximum number of completions to return | |
3797 | * @wc:array of at least @num_entries &struct ib_wc where completions | |
3798 | * will be returned | |
3799 | * | |
3800 | * Poll a CQ for (possibly multiple) completions. If the return value | |
3801 | * is < 0, an error occurred. If the return value is >= 0, it is the | |
3802 | * number of completions returned. If the return value is | |
3803 | * non-negative and < num_entries, then the CQ was emptied. | |
3804 | */ | |
3805 | static inline int ib_poll_cq(struct ib_cq *cq, int num_entries, | |
3806 | struct ib_wc *wc) | |
3807 | { | |
3023a1e9 | 3808 | return cq->device->ops.poll_cq(cq, num_entries, wc); |
1da177e4 LT |
3809 | } |
3810 | ||
1da177e4 LT |
3811 | /** |
3812 | * ib_req_notify_cq - Request completion notification on a CQ. | |
3813 | * @cq: The CQ to generate an event for. | |
ed23a727 RD |
3814 | * @flags: |
3815 | * Must contain exactly one of %IB_CQ_SOLICITED or %IB_CQ_NEXT_COMP | |
3816 | * to request an event on the next solicited event or next work | |
3817 | * completion at any type, respectively. %IB_CQ_REPORT_MISSED_EVENTS | |
3818 | * may also be |ed in to request a hint about missed events, as | |
3819 | * described below. | |
3820 | * | |
3821 | * Return Value: | |
3822 | * < 0 means an error occurred while requesting notification | |
3823 | * == 0 means notification was requested successfully, and if | |
3824 | * IB_CQ_REPORT_MISSED_EVENTS was passed in, then no events | |
3825 | * were missed and it is safe to wait for another event. In | |
3826 | * this case is it guaranteed that any work completions added | |
3827 | * to the CQ since the last CQ poll will trigger a completion | |
3828 | * notification event. | |
3829 | * > 0 is only returned if IB_CQ_REPORT_MISSED_EVENTS was passed | |
3830 | * in. It means that the consumer must poll the CQ again to | |
3831 | * make sure it is empty to avoid missing an event because of a | |
3832 | * race between requesting notification and an entry being | |
3833 | * added to the CQ. This return value means it is possible | |
3834 | * (but not guaranteed) that a work completion has been added | |
3835 | * to the CQ since the last poll without triggering a | |
3836 | * completion notification event. | |
1da177e4 LT |
3837 | */ |
3838 | static inline int ib_req_notify_cq(struct ib_cq *cq, | |
ed23a727 | 3839 | enum ib_cq_notify_flags flags) |
1da177e4 | 3840 | { |
3023a1e9 | 3841 | return cq->device->ops.req_notify_cq(cq, flags); |
1da177e4 LT |
3842 | } |
3843 | ||
3844 | /** | |
3845 | * ib_req_ncomp_notif - Request completion notification when there are | |
3846 | * at least the specified number of unreaped completions on the CQ. | |
3847 | * @cq: The CQ to generate an event for. | |
3848 | * @wc_cnt: The number of unreaped completions that should be on the | |
3849 | * CQ before an event is generated. | |
3850 | */ | |
3851 | static inline int ib_req_ncomp_notif(struct ib_cq *cq, int wc_cnt) | |
3852 | { | |
3023a1e9 KH |
3853 | return cq->device->ops.req_ncomp_notif ? |
3854 | cq->device->ops.req_ncomp_notif(cq, wc_cnt) : | |
1da177e4 LT |
3855 | -ENOSYS; |
3856 | } | |
3857 | ||
9b513090 RC |
3858 | /** |
3859 | * ib_dma_mapping_error - check a DMA addr for error | |
3860 | * @dev: The device for which the dma_addr was created | |
3861 | * @dma_addr: The DMA address to check | |
3862 | */ | |
3863 | static inline int ib_dma_mapping_error(struct ib_device *dev, u64 dma_addr) | |
3864 | { | |
0957c29f | 3865 | return dma_mapping_error(dev->dma_device, dma_addr); |
9b513090 RC |
3866 | } |
3867 | ||
3868 | /** | |
3869 | * ib_dma_map_single - Map a kernel virtual address to DMA address | |
3870 | * @dev: The device for which the dma_addr is to be created | |
3871 | * @cpu_addr: The kernel virtual address | |
3872 | * @size: The size of the region in bytes | |
3873 | * @direction: The direction of the DMA | |
3874 | */ | |
3875 | static inline u64 ib_dma_map_single(struct ib_device *dev, | |
3876 | void *cpu_addr, size_t size, | |
3877 | enum dma_data_direction direction) | |
3878 | { | |
0957c29f | 3879 | return dma_map_single(dev->dma_device, cpu_addr, size, direction); |
9b513090 RC |
3880 | } |
3881 | ||
3882 | /** | |
3883 | * ib_dma_unmap_single - Destroy a mapping created by ib_dma_map_single() | |
3884 | * @dev: The device for which the DMA address was created | |
3885 | * @addr: The DMA address | |
3886 | * @size: The size of the region in bytes | |
3887 | * @direction: The direction of the DMA | |
3888 | */ | |
3889 | static inline void ib_dma_unmap_single(struct ib_device *dev, | |
3890 | u64 addr, size_t size, | |
3891 | enum dma_data_direction direction) | |
3892 | { | |
0957c29f | 3893 | dma_unmap_single(dev->dma_device, addr, size, direction); |
cb9fbc5c AK |
3894 | } |
3895 | ||
9b513090 RC |
3896 | /** |
3897 | * ib_dma_map_page - Map a physical page to DMA address | |
3898 | * @dev: The device for which the dma_addr is to be created | |
3899 | * @page: The page to be mapped | |
3900 | * @offset: The offset within the page | |
3901 | * @size: The size of the region in bytes | |
3902 | * @direction: The direction of the DMA | |
3903 | */ | |
3904 | static inline u64 ib_dma_map_page(struct ib_device *dev, | |
3905 | struct page *page, | |
3906 | unsigned long offset, | |
3907 | size_t size, | |
3908 | enum dma_data_direction direction) | |
3909 | { | |
0957c29f | 3910 | return dma_map_page(dev->dma_device, page, offset, size, direction); |
9b513090 RC |
3911 | } |
3912 | ||
3913 | /** | |
3914 | * ib_dma_unmap_page - Destroy a mapping created by ib_dma_map_page() | |
3915 | * @dev: The device for which the DMA address was created | |
3916 | * @addr: The DMA address | |
3917 | * @size: The size of the region in bytes | |
3918 | * @direction: The direction of the DMA | |
3919 | */ | |
3920 | static inline void ib_dma_unmap_page(struct ib_device *dev, | |
3921 | u64 addr, size_t size, | |
3922 | enum dma_data_direction direction) | |
3923 | { | |
0957c29f | 3924 | dma_unmap_page(dev->dma_device, addr, size, direction); |
9b513090 RC |
3925 | } |
3926 | ||
3927 | /** | |
3928 | * ib_dma_map_sg - Map a scatter/gather list to DMA addresses | |
3929 | * @dev: The device for which the DMA addresses are to be created | |
3930 | * @sg: The array of scatter/gather entries | |
3931 | * @nents: The number of scatter/gather entries | |
3932 | * @direction: The direction of the DMA | |
3933 | */ | |
3934 | static inline int ib_dma_map_sg(struct ib_device *dev, | |
3935 | struct scatterlist *sg, int nents, | |
3936 | enum dma_data_direction direction) | |
3937 | { | |
0957c29f | 3938 | return dma_map_sg(dev->dma_device, sg, nents, direction); |
9b513090 RC |
3939 | } |
3940 | ||
3941 | /** | |
3942 | * ib_dma_unmap_sg - Unmap a scatter/gather list of DMA addresses | |
3943 | * @dev: The device for which the DMA addresses were created | |
3944 | * @sg: The array of scatter/gather entries | |
3945 | * @nents: The number of scatter/gather entries | |
3946 | * @direction: The direction of the DMA | |
3947 | */ | |
3948 | static inline void ib_dma_unmap_sg(struct ib_device *dev, | |
3949 | struct scatterlist *sg, int nents, | |
3950 | enum dma_data_direction direction) | |
3951 | { | |
0957c29f | 3952 | dma_unmap_sg(dev->dma_device, sg, nents, direction); |
9b513090 RC |
3953 | } |
3954 | ||
cb9fbc5c AK |
3955 | static inline int ib_dma_map_sg_attrs(struct ib_device *dev, |
3956 | struct scatterlist *sg, int nents, | |
3957 | enum dma_data_direction direction, | |
00085f1e | 3958 | unsigned long dma_attrs) |
cb9fbc5c | 3959 | { |
0957c29f BVA |
3960 | return dma_map_sg_attrs(dev->dma_device, sg, nents, direction, |
3961 | dma_attrs); | |
cb9fbc5c AK |
3962 | } |
3963 | ||
3964 | static inline void ib_dma_unmap_sg_attrs(struct ib_device *dev, | |
3965 | struct scatterlist *sg, int nents, | |
3966 | enum dma_data_direction direction, | |
00085f1e | 3967 | unsigned long dma_attrs) |
cb9fbc5c | 3968 | { |
0957c29f | 3969 | dma_unmap_sg_attrs(dev->dma_device, sg, nents, direction, dma_attrs); |
cb9fbc5c | 3970 | } |
9b513090 | 3971 | |
0b5cb330 BVA |
3972 | /** |
3973 | * ib_dma_max_seg_size - Return the size limit of a single DMA transfer | |
3974 | * @dev: The device to query | |
3975 | * | |
3976 | * The returned value represents a size in bytes. | |
3977 | */ | |
3978 | static inline unsigned int ib_dma_max_seg_size(struct ib_device *dev) | |
3979 | { | |
3980 | struct device_dma_parameters *p = dev->dma_device->dma_parms; | |
3981 | ||
3982 | return p ? p->max_segment_size : UINT_MAX; | |
3983 | } | |
3984 | ||
9b513090 RC |
3985 | /** |
3986 | * ib_dma_sync_single_for_cpu - Prepare DMA region to be accessed by CPU | |
3987 | * @dev: The device for which the DMA address was created | |
3988 | * @addr: The DMA address | |
3989 | * @size: The size of the region in bytes | |
3990 | * @dir: The direction of the DMA | |
3991 | */ | |
3992 | static inline void ib_dma_sync_single_for_cpu(struct ib_device *dev, | |
3993 | u64 addr, | |
3994 | size_t size, | |
3995 | enum dma_data_direction dir) | |
3996 | { | |
0957c29f | 3997 | dma_sync_single_for_cpu(dev->dma_device, addr, size, dir); |
9b513090 RC |
3998 | } |
3999 | ||
4000 | /** | |
4001 | * ib_dma_sync_single_for_device - Prepare DMA region to be accessed by device | |
4002 | * @dev: The device for which the DMA address was created | |
4003 | * @addr: The DMA address | |
4004 | * @size: The size of the region in bytes | |
4005 | * @dir: The direction of the DMA | |
4006 | */ | |
4007 | static inline void ib_dma_sync_single_for_device(struct ib_device *dev, | |
4008 | u64 addr, | |
4009 | size_t size, | |
4010 | enum dma_data_direction dir) | |
4011 | { | |
0957c29f | 4012 | dma_sync_single_for_device(dev->dma_device, addr, size, dir); |
9b513090 RC |
4013 | } |
4014 | ||
4015 | /** | |
4016 | * ib_dma_alloc_coherent - Allocate memory and map it for DMA | |
4017 | * @dev: The device for which the DMA address is requested | |
4018 | * @size: The size of the region to allocate in bytes | |
4019 | * @dma_handle: A pointer for returning the DMA address of the region | |
4020 | * @flag: memory allocator flags | |
4021 | */ | |
4022 | static inline void *ib_dma_alloc_coherent(struct ib_device *dev, | |
4023 | size_t size, | |
d43dbacf | 4024 | dma_addr_t *dma_handle, |
9b513090 RC |
4025 | gfp_t flag) |
4026 | { | |
0957c29f | 4027 | return dma_alloc_coherent(dev->dma_device, size, dma_handle, flag); |
9b513090 RC |
4028 | } |
4029 | ||
4030 | /** | |
4031 | * ib_dma_free_coherent - Free memory allocated by ib_dma_alloc_coherent() | |
4032 | * @dev: The device for which the DMA addresses were allocated | |
4033 | * @size: The size of the region | |
4034 | * @cpu_addr: the address returned by ib_dma_alloc_coherent() | |
4035 | * @dma_handle: the DMA address returned by ib_dma_alloc_coherent() | |
4036 | */ | |
4037 | static inline void ib_dma_free_coherent(struct ib_device *dev, | |
4038 | size_t size, void *cpu_addr, | |
d43dbacf | 4039 | dma_addr_t dma_handle) |
9b513090 | 4040 | { |
0957c29f | 4041 | dma_free_coherent(dev->dma_device, size, cpu_addr, dma_handle); |
9b513090 RC |
4042 | } |
4043 | ||
1da177e4 | 4044 | /** |
c4367a26 SR |
4045 | * ib_dereg_mr_user - Deregisters a memory region and removes it from the |
4046 | * HCA translation table. | |
4047 | * @mr: The memory region to deregister. | |
4048 | * @udata: Valid user data or NULL for kernel object | |
4049 | * | |
4050 | * This function can fail, if the memory region has memory windows bound to it. | |
4051 | */ | |
4052 | int ib_dereg_mr_user(struct ib_mr *mr, struct ib_udata *udata); | |
4053 | ||
4054 | /** | |
4055 | * ib_dereg_mr - Deregisters a kernel memory region and removes it from the | |
1da177e4 LT |
4056 | * HCA translation table. |
4057 | * @mr: The memory region to deregister. | |
7083e42e SM |
4058 | * |
4059 | * This function can fail, if the memory region has memory windows bound to it. | |
c4367a26 SR |
4060 | * |
4061 | * NOTE: for user mr use ib_dereg_mr_user with valid udata! | |
1da177e4 | 4062 | */ |
c4367a26 SR |
4063 | static inline int ib_dereg_mr(struct ib_mr *mr) |
4064 | { | |
4065 | return ib_dereg_mr_user(mr, NULL); | |
4066 | } | |
4067 | ||
4068 | struct ib_mr *ib_alloc_mr_user(struct ib_pd *pd, enum ib_mr_type mr_type, | |
4069 | u32 max_num_sg, struct ib_udata *udata); | |
1da177e4 | 4070 | |
c4367a26 SR |
4071 | static inline struct ib_mr *ib_alloc_mr(struct ib_pd *pd, |
4072 | enum ib_mr_type mr_type, u32 max_num_sg) | |
4073 | { | |
4074 | return ib_alloc_mr_user(pd, mr_type, max_num_sg, NULL); | |
4075 | } | |
00f7ec36 | 4076 | |
00f7ec36 SW |
4077 | /** |
4078 | * ib_update_fast_reg_key - updates the key portion of the fast_reg MR | |
4079 | * R_Key and L_Key. | |
4080 | * @mr - struct ib_mr pointer to be updated. | |
4081 | * @newkey - new key to be used. | |
4082 | */ | |
4083 | static inline void ib_update_fast_reg_key(struct ib_mr *mr, u8 newkey) | |
4084 | { | |
4085 | mr->lkey = (mr->lkey & 0xffffff00) | newkey; | |
4086 | mr->rkey = (mr->rkey & 0xffffff00) | newkey; | |
4087 | } | |
4088 | ||
7083e42e SM |
4089 | /** |
4090 | * ib_inc_rkey - increments the key portion of the given rkey. Can be used | |
4091 | * for calculating a new rkey for type 2 memory windows. | |
4092 | * @rkey - the rkey to increment. | |
4093 | */ | |
4094 | static inline u32 ib_inc_rkey(u32 rkey) | |
4095 | { | |
4096 | const u32 mask = 0x000000ff; | |
4097 | return ((rkey + 1) & mask) | (rkey & ~mask); | |
4098 | } | |
4099 | ||
1da177e4 LT |
4100 | /** |
4101 | * ib_alloc_fmr - Allocates a unmapped fast memory region. | |
4102 | * @pd: The protection domain associated with the unmapped region. | |
4103 | * @mr_access_flags: Specifies the memory access rights. | |
4104 | * @fmr_attr: Attributes of the unmapped region. | |
4105 | * | |
4106 | * A fast memory region must be mapped before it can be used as part of | |
4107 | * a work request. | |
4108 | */ | |
4109 | struct ib_fmr *ib_alloc_fmr(struct ib_pd *pd, | |
4110 | int mr_access_flags, | |
4111 | struct ib_fmr_attr *fmr_attr); | |
4112 | ||
4113 | /** | |
4114 | * ib_map_phys_fmr - Maps a list of physical pages to a fast memory region. | |
4115 | * @fmr: The fast memory region to associate with the pages. | |
4116 | * @page_list: An array of physical pages to map to the fast memory region. | |
4117 | * @list_len: The number of pages in page_list. | |
4118 | * @iova: The I/O virtual address to use with the mapped region. | |
4119 | */ | |
4120 | static inline int ib_map_phys_fmr(struct ib_fmr *fmr, | |
4121 | u64 *page_list, int list_len, | |
4122 | u64 iova) | |
4123 | { | |
3023a1e9 | 4124 | return fmr->device->ops.map_phys_fmr(fmr, page_list, list_len, iova); |
1da177e4 LT |
4125 | } |
4126 | ||
4127 | /** | |
4128 | * ib_unmap_fmr - Removes the mapping from a list of fast memory regions. | |
4129 | * @fmr_list: A linked list of fast memory regions to unmap. | |
4130 | */ | |
4131 | int ib_unmap_fmr(struct list_head *fmr_list); | |
4132 | ||
4133 | /** | |
4134 | * ib_dealloc_fmr - Deallocates a fast memory region. | |
4135 | * @fmr: The fast memory region to deallocate. | |
4136 | */ | |
4137 | int ib_dealloc_fmr(struct ib_fmr *fmr); | |
4138 | ||
4139 | /** | |
4140 | * ib_attach_mcast - Attaches the specified QP to a multicast group. | |
4141 | * @qp: QP to attach to the multicast group. The QP must be type | |
4142 | * IB_QPT_UD. | |
4143 | * @gid: Multicast group GID. | |
4144 | * @lid: Multicast group LID in host byte order. | |
4145 | * | |
4146 | * In order to send and receive multicast packets, subnet | |
4147 | * administration must have created the multicast group and configured | |
4148 | * the fabric appropriately. The port associated with the specified | |
4149 | * QP must also be a member of the multicast group. | |
4150 | */ | |
4151 | int ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid); | |
4152 | ||
4153 | /** | |
4154 | * ib_detach_mcast - Detaches the specified QP from a multicast group. | |
4155 | * @qp: QP to detach from the multicast group. | |
4156 | * @gid: Multicast group GID. | |
4157 | * @lid: Multicast group LID in host byte order. | |
4158 | */ | |
4159 | int ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid); | |
4160 | ||
59991f94 SH |
4161 | /** |
4162 | * ib_alloc_xrcd - Allocates an XRC domain. | |
4163 | * @device: The device on which to allocate the XRC domain. | |
f66c8ba4 | 4164 | * @caller: Module name for kernel consumers |
59991f94 | 4165 | */ |
f66c8ba4 LR |
4166 | struct ib_xrcd *__ib_alloc_xrcd(struct ib_device *device, const char *caller); |
4167 | #define ib_alloc_xrcd(device) \ | |
4168 | __ib_alloc_xrcd((device), KBUILD_MODNAME) | |
59991f94 SH |
4169 | |
4170 | /** | |
4171 | * ib_dealloc_xrcd - Deallocates an XRC domain. | |
4172 | * @xrcd: The XRC domain to deallocate. | |
c4367a26 | 4173 | * @udata: Valid user data or NULL for kernel object |
59991f94 | 4174 | */ |
c4367a26 | 4175 | int ib_dealloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata); |
59991f94 | 4176 | |
1c636f80 EC |
4177 | static inline int ib_check_mr_access(int flags) |
4178 | { | |
4179 | /* | |
4180 | * Local write permission is required if remote write or | |
4181 | * remote atomic permission is also requested. | |
4182 | */ | |
4183 | if (flags & (IB_ACCESS_REMOTE_ATOMIC | IB_ACCESS_REMOTE_WRITE) && | |
4184 | !(flags & IB_ACCESS_LOCAL_WRITE)) | |
4185 | return -EINVAL; | |
4186 | ||
4187 | return 0; | |
4188 | } | |
4189 | ||
08bb558a JM |
4190 | static inline bool ib_access_writable(int access_flags) |
4191 | { | |
4192 | /* | |
4193 | * We have writable memory backing the MR if any of the following | |
4194 | * access flags are set. "Local write" and "remote write" obviously | |
4195 | * require write access. "Remote atomic" can do things like fetch and | |
4196 | * add, which will modify memory, and "MW bind" can change permissions | |
4197 | * by binding a window. | |
4198 | */ | |
4199 | return access_flags & | |
4200 | (IB_ACCESS_LOCAL_WRITE | IB_ACCESS_REMOTE_WRITE | | |
4201 | IB_ACCESS_REMOTE_ATOMIC | IB_ACCESS_MW_BIND); | |
4202 | } | |
4203 | ||
1b01d335 SG |
4204 | /** |
4205 | * ib_check_mr_status: lightweight check of MR status. | |
4206 | * This routine may provide status checks on a selected | |
4207 | * ib_mr. first use is for signature status check. | |
4208 | * | |
4209 | * @mr: A memory region. | |
4210 | * @check_mask: Bitmask of which checks to perform from | |
4211 | * ib_mr_status_check enumeration. | |
4212 | * @mr_status: The container of relevant status checks. | |
4213 | * failed checks will be indicated in the status bitmask | |
4214 | * and the relevant info shall be in the error item. | |
4215 | */ | |
4216 | int ib_check_mr_status(struct ib_mr *mr, u32 check_mask, | |
4217 | struct ib_mr_status *mr_status); | |
4218 | ||
d79af724 JG |
4219 | /** |
4220 | * ib_device_try_get: Hold a registration lock | |
4221 | * device: The device to lock | |
4222 | * | |
4223 | * A device under an active registration lock cannot become unregistered. It | |
4224 | * is only possible to obtain a registration lock on a device that is fully | |
4225 | * registered, otherwise this function returns false. | |
4226 | * | |
4227 | * The registration lock is only necessary for actions which require the | |
4228 | * device to still be registered. Uses that only require the device pointer to | |
4229 | * be valid should use get_device(&ibdev->dev) to hold the memory. | |
4230 | * | |
4231 | */ | |
4232 | static inline bool ib_device_try_get(struct ib_device *dev) | |
4233 | { | |
4234 | return refcount_inc_not_zero(&dev->refcount); | |
4235 | } | |
4236 | ||
4237 | void ib_device_put(struct ib_device *device); | |
324e227e JG |
4238 | struct ib_device *ib_device_get_by_netdev(struct net_device *ndev, |
4239 | enum rdma_driver_id driver_id); | |
4240 | struct ib_device *ib_device_get_by_name(const char *name, | |
4241 | enum rdma_driver_id driver_id); | |
9268f72d YK |
4242 | struct net_device *ib_get_net_dev_by_params(struct ib_device *dev, u8 port, |
4243 | u16 pkey, const union ib_gid *gid, | |
4244 | const struct sockaddr *addr); | |
c2261dd7 JG |
4245 | int ib_device_set_netdev(struct ib_device *ib_dev, struct net_device *ndev, |
4246 | unsigned int port); | |
4247 | struct net_device *ib_device_netdev(struct ib_device *dev, u8 port); | |
4248 | ||
5fd251c8 YH |
4249 | struct ib_wq *ib_create_wq(struct ib_pd *pd, |
4250 | struct ib_wq_init_attr *init_attr); | |
c4367a26 | 4251 | int ib_destroy_wq(struct ib_wq *wq, struct ib_udata *udata); |
5fd251c8 YH |
4252 | int ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *attr, |
4253 | u32 wq_attr_mask); | |
6d39786b YH |
4254 | struct ib_rwq_ind_table *ib_create_rwq_ind_table(struct ib_device *device, |
4255 | struct ib_rwq_ind_table_init_attr* | |
4256 | wq_ind_table_init_attr); | |
4257 | int ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *wq_ind_table); | |
9268f72d | 4258 | |
ff2ba993 | 4259 | int ib_map_mr_sg(struct ib_mr *mr, struct scatterlist *sg, int sg_nents, |
9aa8b321 | 4260 | unsigned int *sg_offset, unsigned int page_size); |
4c67e2bf SG |
4261 | |
4262 | static inline int | |
ff2ba993 | 4263 | ib_map_mr_sg_zbva(struct ib_mr *mr, struct scatterlist *sg, int sg_nents, |
9aa8b321 | 4264 | unsigned int *sg_offset, unsigned int page_size) |
4c67e2bf SG |
4265 | { |
4266 | int n; | |
4267 | ||
ff2ba993 | 4268 | n = ib_map_mr_sg(mr, sg, sg_nents, sg_offset, page_size); |
4c67e2bf SG |
4269 | mr->iova = 0; |
4270 | ||
4271 | return n; | |
4272 | } | |
4273 | ||
ff2ba993 | 4274 | int ib_sg_to_pages(struct ib_mr *mr, struct scatterlist *sgl, int sg_nents, |
9aa8b321 | 4275 | unsigned int *sg_offset, int (*set_page)(struct ib_mr *, u64)); |
4c67e2bf | 4276 | |
765d6774 SW |
4277 | void ib_drain_rq(struct ib_qp *qp); |
4278 | void ib_drain_sq(struct ib_qp *qp); | |
4279 | void ib_drain_qp(struct ib_qp *qp); | |
850d8fd7 | 4280 | |
d4186194 | 4281 | int ib_get_eth_speed(struct ib_device *dev, u8 port_num, u8 *speed, u8 *width); |
2224c47a DC |
4282 | |
4283 | static inline u8 *rdma_ah_retrieve_dmac(struct rdma_ah_attr *attr) | |
4284 | { | |
44c58487 DC |
4285 | if (attr->type == RDMA_AH_ATTR_TYPE_ROCE) |
4286 | return attr->roce.dmac; | |
4287 | return NULL; | |
2224c47a DC |
4288 | } |
4289 | ||
64b4646e | 4290 | static inline void rdma_ah_set_dlid(struct rdma_ah_attr *attr, u32 dlid) |
2224c47a | 4291 | { |
44c58487 | 4292 | if (attr->type == RDMA_AH_ATTR_TYPE_IB) |
64b4646e DC |
4293 | attr->ib.dlid = (u16)dlid; |
4294 | else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) | |
4295 | attr->opa.dlid = dlid; | |
2224c47a DC |
4296 | } |
4297 | ||
64b4646e | 4298 | static inline u32 rdma_ah_get_dlid(const struct rdma_ah_attr *attr) |
2224c47a | 4299 | { |
44c58487 DC |
4300 | if (attr->type == RDMA_AH_ATTR_TYPE_IB) |
4301 | return attr->ib.dlid; | |
64b4646e DC |
4302 | else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) |
4303 | return attr->opa.dlid; | |
44c58487 | 4304 | return 0; |
2224c47a DC |
4305 | } |
4306 | ||
4307 | static inline void rdma_ah_set_sl(struct rdma_ah_attr *attr, u8 sl) | |
4308 | { | |
4309 | attr->sl = sl; | |
4310 | } | |
4311 | ||
4312 | static inline u8 rdma_ah_get_sl(const struct rdma_ah_attr *attr) | |
4313 | { | |
4314 | return attr->sl; | |
4315 | } | |
4316 | ||
4317 | static inline void rdma_ah_set_path_bits(struct rdma_ah_attr *attr, | |
4318 | u8 src_path_bits) | |
4319 | { | |
44c58487 DC |
4320 | if (attr->type == RDMA_AH_ATTR_TYPE_IB) |
4321 | attr->ib.src_path_bits = src_path_bits; | |
64b4646e DC |
4322 | else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) |
4323 | attr->opa.src_path_bits = src_path_bits; | |
2224c47a DC |
4324 | } |
4325 | ||
4326 | static inline u8 rdma_ah_get_path_bits(const struct rdma_ah_attr *attr) | |
4327 | { | |
44c58487 DC |
4328 | if (attr->type == RDMA_AH_ATTR_TYPE_IB) |
4329 | return attr->ib.src_path_bits; | |
64b4646e DC |
4330 | else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) |
4331 | return attr->opa.src_path_bits; | |
44c58487 | 4332 | return 0; |
2224c47a DC |
4333 | } |
4334 | ||
d98bb7f7 DH |
4335 | static inline void rdma_ah_set_make_grd(struct rdma_ah_attr *attr, |
4336 | bool make_grd) | |
4337 | { | |
4338 | if (attr->type == RDMA_AH_ATTR_TYPE_OPA) | |
4339 | attr->opa.make_grd = make_grd; | |
4340 | } | |
4341 | ||
4342 | static inline bool rdma_ah_get_make_grd(const struct rdma_ah_attr *attr) | |
4343 | { | |
4344 | if (attr->type == RDMA_AH_ATTR_TYPE_OPA) | |
4345 | return attr->opa.make_grd; | |
4346 | return false; | |
4347 | } | |
4348 | ||
2224c47a DC |
4349 | static inline void rdma_ah_set_port_num(struct rdma_ah_attr *attr, u8 port_num) |
4350 | { | |
4351 | attr->port_num = port_num; | |
4352 | } | |
4353 | ||
4354 | static inline u8 rdma_ah_get_port_num(const struct rdma_ah_attr *attr) | |
4355 | { | |
4356 | return attr->port_num; | |
4357 | } | |
4358 | ||
4359 | static inline void rdma_ah_set_static_rate(struct rdma_ah_attr *attr, | |
4360 | u8 static_rate) | |
4361 | { | |
4362 | attr->static_rate = static_rate; | |
4363 | } | |
4364 | ||
4365 | static inline u8 rdma_ah_get_static_rate(const struct rdma_ah_attr *attr) | |
4366 | { | |
4367 | return attr->static_rate; | |
4368 | } | |
4369 | ||
4370 | static inline void rdma_ah_set_ah_flags(struct rdma_ah_attr *attr, | |
4371 | enum ib_ah_flags flag) | |
4372 | { | |
4373 | attr->ah_flags = flag; | |
4374 | } | |
4375 | ||
4376 | static inline enum ib_ah_flags | |
4377 | rdma_ah_get_ah_flags(const struct rdma_ah_attr *attr) | |
4378 | { | |
4379 | return attr->ah_flags; | |
4380 | } | |
4381 | ||
4382 | static inline const struct ib_global_route | |
4383 | *rdma_ah_read_grh(const struct rdma_ah_attr *attr) | |
4384 | { | |
4385 | return &attr->grh; | |
4386 | } | |
4387 | ||
4388 | /*To retrieve and modify the grh */ | |
4389 | static inline struct ib_global_route | |
4390 | *rdma_ah_retrieve_grh(struct rdma_ah_attr *attr) | |
4391 | { | |
4392 | return &attr->grh; | |
4393 | } | |
4394 | ||
4395 | static inline void rdma_ah_set_dgid_raw(struct rdma_ah_attr *attr, void *dgid) | |
4396 | { | |
4397 | struct ib_global_route *grh = rdma_ah_retrieve_grh(attr); | |
4398 | ||
4399 | memcpy(grh->dgid.raw, dgid, sizeof(grh->dgid)); | |
4400 | } | |
4401 | ||
4402 | static inline void rdma_ah_set_subnet_prefix(struct rdma_ah_attr *attr, | |
4403 | __be64 prefix) | |
4404 | { | |
4405 | struct ib_global_route *grh = rdma_ah_retrieve_grh(attr); | |
4406 | ||
4407 | grh->dgid.global.subnet_prefix = prefix; | |
4408 | } | |
4409 | ||
4410 | static inline void rdma_ah_set_interface_id(struct rdma_ah_attr *attr, | |
4411 | __be64 if_id) | |
4412 | { | |
4413 | struct ib_global_route *grh = rdma_ah_retrieve_grh(attr); | |
4414 | ||
4415 | grh->dgid.global.interface_id = if_id; | |
4416 | } | |
4417 | ||
4418 | static inline void rdma_ah_set_grh(struct rdma_ah_attr *attr, | |
4419 | union ib_gid *dgid, u32 flow_label, | |
4420 | u8 sgid_index, u8 hop_limit, | |
4421 | u8 traffic_class) | |
4422 | { | |
4423 | struct ib_global_route *grh = rdma_ah_retrieve_grh(attr); | |
4424 | ||
4425 | attr->ah_flags = IB_AH_GRH; | |
4426 | if (dgid) | |
4427 | grh->dgid = *dgid; | |
4428 | grh->flow_label = flow_label; | |
4429 | grh->sgid_index = sgid_index; | |
4430 | grh->hop_limit = hop_limit; | |
4431 | grh->traffic_class = traffic_class; | |
8d9ec9ad | 4432 | grh->sgid_attr = NULL; |
2224c47a | 4433 | } |
44c58487 | 4434 | |
8d9ec9ad JG |
4435 | void rdma_destroy_ah_attr(struct rdma_ah_attr *ah_attr); |
4436 | void rdma_move_grh_sgid_attr(struct rdma_ah_attr *attr, union ib_gid *dgid, | |
4437 | u32 flow_label, u8 hop_limit, u8 traffic_class, | |
4438 | const struct ib_gid_attr *sgid_attr); | |
d97099fe JG |
4439 | void rdma_copy_ah_attr(struct rdma_ah_attr *dest, |
4440 | const struct rdma_ah_attr *src); | |
4441 | void rdma_replace_ah_attr(struct rdma_ah_attr *old, | |
4442 | const struct rdma_ah_attr *new); | |
4443 | void rdma_move_ah_attr(struct rdma_ah_attr *dest, struct rdma_ah_attr *src); | |
8d9ec9ad | 4444 | |
87daac68 DH |
4445 | /** |
4446 | * rdma_ah_find_type - Return address handle type. | |
4447 | * | |
4448 | * @dev: Device to be checked | |
4449 | * @port_num: Port number | |
4450 | */ | |
44c58487 | 4451 | static inline enum rdma_ah_attr_type rdma_ah_find_type(struct ib_device *dev, |
87daac68 | 4452 | u8 port_num) |
44c58487 | 4453 | { |
a6532e71 | 4454 | if (rdma_protocol_roce(dev, port_num)) |
44c58487 | 4455 | return RDMA_AH_ATTR_TYPE_ROCE; |
87daac68 DH |
4456 | if (rdma_protocol_ib(dev, port_num)) { |
4457 | if (rdma_cap_opa_ah(dev, port_num)) | |
4458 | return RDMA_AH_ATTR_TYPE_OPA; | |
44c58487 | 4459 | return RDMA_AH_ATTR_TYPE_IB; |
87daac68 DH |
4460 | } |
4461 | ||
4462 | return RDMA_AH_ATTR_TYPE_UNDEFINED; | |
44c58487 | 4463 | } |
7db20ecd | 4464 | |
62ede777 HD |
4465 | /** |
4466 | * ib_lid_cpu16 - Return lid in 16bit CPU encoding. | |
4467 | * In the current implementation the only way to get | |
4468 | * get the 32bit lid is from other sources for OPA. | |
4469 | * For IB, lids will always be 16bits so cast the | |
4470 | * value accordingly. | |
4471 | * | |
4472 | * @lid: A 32bit LID | |
4473 | */ | |
4474 | static inline u16 ib_lid_cpu16(u32 lid) | |
7db20ecd | 4475 | { |
62ede777 HD |
4476 | WARN_ON_ONCE(lid & 0xFFFF0000); |
4477 | return (u16)lid; | |
7db20ecd HD |
4478 | } |
4479 | ||
62ede777 HD |
4480 | /** |
4481 | * ib_lid_be16 - Return lid in 16bit BE encoding. | |
4482 | * | |
4483 | * @lid: A 32bit LID | |
4484 | */ | |
4485 | static inline __be16 ib_lid_be16(u32 lid) | |
7db20ecd | 4486 | { |
62ede777 HD |
4487 | WARN_ON_ONCE(lid & 0xFFFF0000); |
4488 | return cpu_to_be16((u16)lid); | |
7db20ecd | 4489 | } |
32043830 | 4490 | |
c66cd353 SG |
4491 | /** |
4492 | * ib_get_vector_affinity - Get the affinity mappings of a given completion | |
4493 | * vector | |
4494 | * @device: the rdma device | |
4495 | * @comp_vector: index of completion vector | |
4496 | * | |
4497 | * Returns NULL on failure, otherwise a corresponding cpu map of the | |
4498 | * completion vector (returns all-cpus map if the device driver doesn't | |
4499 | * implement get_vector_affinity). | |
4500 | */ | |
4501 | static inline const struct cpumask * | |
4502 | ib_get_vector_affinity(struct ib_device *device, int comp_vector) | |
4503 | { | |
4504 | if (comp_vector < 0 || comp_vector >= device->num_comp_vectors || | |
3023a1e9 | 4505 | !device->ops.get_vector_affinity) |
c66cd353 SG |
4506 | return NULL; |
4507 | ||
3023a1e9 | 4508 | return device->ops.get_vector_affinity(device, comp_vector); |
c66cd353 SG |
4509 | |
4510 | } | |
4511 | ||
32f69e4b DJ |
4512 | /** |
4513 | * rdma_roce_rescan_device - Rescan all of the network devices in the system | |
4514 | * and add their gids, as needed, to the relevant RoCE devices. | |
4515 | * | |
4516 | * @device: the rdma device | |
4517 | */ | |
4518 | void rdma_roce_rescan_device(struct ib_device *ibdev); | |
4519 | ||
8313c10f | 4520 | struct ib_ucontext *ib_uverbs_get_ucontext_file(struct ib_uverbs_file *ufile); |
7dc08dcf | 4521 | |
15a1b4be | 4522 | int uverbs_destroy_def_handler(struct uverbs_attr_bundle *attrs); |
f6a8a19b DD |
4523 | |
4524 | struct net_device *rdma_alloc_netdev(struct ib_device *device, u8 port_num, | |
4525 | enum rdma_netdev_t type, const char *name, | |
4526 | unsigned char name_assign_type, | |
4527 | void (*setup)(struct net_device *)); | |
5d6b0cb3 DD |
4528 | |
4529 | int rdma_init_netdev(struct ib_device *device, u8 port_num, | |
4530 | enum rdma_netdev_t type, const char *name, | |
4531 | unsigned char name_assign_type, | |
4532 | void (*setup)(struct net_device *), | |
4533 | struct net_device *netdev); | |
4534 | ||
d4122f5a PP |
4535 | /** |
4536 | * rdma_set_device_sysfs_group - Set device attributes group to have | |
4537 | * driver specific sysfs entries at | |
4538 | * for infiniband class. | |
4539 | * | |
4540 | * @device: device pointer for which attributes to be created | |
4541 | * @group: Pointer to group which should be added when device | |
4542 | * is registered with sysfs. | |
4543 | * rdma_set_device_sysfs_group() allows existing drivers to expose one | |
4544 | * group per device to have sysfs attributes. | |
4545 | * | |
4546 | * NOTE: New drivers should not make use of this API; instead new device | |
4547 | * parameter should be exposed via netlink command. This API and mechanism | |
4548 | * exist only for existing drivers. | |
4549 | */ | |
4550 | static inline void | |
4551 | rdma_set_device_sysfs_group(struct ib_device *dev, | |
4552 | const struct attribute_group *group) | |
4553 | { | |
4554 | dev->groups[1] = group; | |
4555 | } | |
4556 | ||
54747231 PP |
4557 | /** |
4558 | * rdma_device_to_ibdev - Get ib_device pointer from device pointer | |
4559 | * | |
4560 | * @device: device pointer for which ib_device pointer to retrieve | |
4561 | * | |
4562 | * rdma_device_to_ibdev() retrieves ib_device pointer from device. | |
4563 | * | |
4564 | */ | |
4565 | static inline struct ib_device *rdma_device_to_ibdev(struct device *device) | |
4566 | { | |
cebe556b PP |
4567 | struct ib_core_device *coredev = |
4568 | container_of(device, struct ib_core_device, dev); | |
4569 | ||
4570 | return coredev->owner; | |
54747231 PP |
4571 | } |
4572 | ||
4573 | /** | |
4574 | * rdma_device_to_drv_device - Helper macro to reach back to driver's | |
4575 | * ib_device holder structure from device pointer. | |
4576 | * | |
4577 | * NOTE: New drivers should not make use of this API; This API is only for | |
4578 | * existing drivers who have exposed sysfs entries using | |
4579 | * rdma_set_device_sysfs_group(). | |
4580 | */ | |
4581 | #define rdma_device_to_drv_device(dev, drv_dev_struct, ibdev_member) \ | |
4582 | container_of(rdma_device_to_ibdev(dev), drv_dev_struct, ibdev_member) | |
41c61401 PP |
4583 | |
4584 | bool rdma_dev_access_netns(const struct ib_device *device, | |
4585 | const struct net *net); | |
1da177e4 | 4586 | #endif /* IB_VERBS_H */ |