]>
Commit | Line | Data |
---|---|---|
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 RC |
44 | #include <linux/mm.h> |
45 | #include <linux/dma-mapping.h> | |
459d6e2a | 46 | #include <linux/kref.h> |
bfb3ea12 DB |
47 | #include <linux/list.h> |
48 | #include <linux/rwsem.h> | |
87ae9afd | 49 | #include <linux/scatterlist.h> |
f0626710 | 50 | #include <linux/workqueue.h> |
9268f72d | 51 | #include <linux/socket.h> |
14d3a3b2 | 52 | #include <linux/irq_poll.h> |
dd5f03be | 53 | #include <uapi/linux/if_ether.h> |
c865f246 SK |
54 | #include <net/ipv6.h> |
55 | #include <net/ip.h> | |
301a721e MB |
56 | #include <linux/string.h> |
57 | #include <linux/slab.h> | |
2fc77572 | 58 | #include <linux/netdevice.h> |
e2773c06 | 59 | |
50174a7f | 60 | #include <linux/if_link.h> |
60063497 | 61 | #include <linux/atomic.h> |
882214e2 | 62 | #include <linux/mmu_notifier.h> |
7c0f6ba6 | 63 | #include <linux/uaccess.h> |
43579b5f | 64 | #include <linux/cgroup_rdma.h> |
ea6819e1 | 65 | #include <uapi/rdma/ib_user_verbs.h> |
02d8883f | 66 | #include <rdma/restrack.h> |
0ede73bc | 67 | #include <uapi/rdma/rdma_user_ioctl.h> |
2eb9beae | 68 | #include <uapi/rdma/ib_user_ioctl_verbs.h> |
1da177e4 | 69 | |
9abb0d1b LR |
70 | #define IB_FW_VERSION_NAME_MAX ETHTOOL_FWVERS_LEN |
71 | ||
f0626710 | 72 | extern struct workqueue_struct *ib_wq; |
14d3a3b2 | 73 | extern struct workqueue_struct *ib_comp_wq; |
f0626710 | 74 | |
1da177e4 LT |
75 | union ib_gid { |
76 | u8 raw[16]; | |
77 | struct { | |
97f52eb4 SH |
78 | __be64 subnet_prefix; |
79 | __be64 interface_id; | |
1da177e4 LT |
80 | } global; |
81 | }; | |
82 | ||
e26be1bf MS |
83 | extern union ib_gid zgid; |
84 | ||
b39ffa1d MB |
85 | enum ib_gid_type { |
86 | /* If link layer is Ethernet, this is RoCE V1 */ | |
87 | IB_GID_TYPE_IB = 0, | |
88 | IB_GID_TYPE_ROCE = 0, | |
7766a99f | 89 | IB_GID_TYPE_ROCE_UDP_ENCAP = 1, |
b39ffa1d MB |
90 | IB_GID_TYPE_SIZE |
91 | }; | |
92 | ||
7ead4bcb | 93 | #define ROCE_V2_UDP_DPORT 4791 |
03db3a2d MB |
94 | struct ib_gid_attr { |
95 | struct net_device *ndev; | |
598ff6ba PP |
96 | struct ib_device *device; |
97 | enum ib_gid_type gid_type; | |
98 | u16 index; | |
99 | u8 port_num; | |
03db3a2d MB |
100 | }; |
101 | ||
07ebafba TT |
102 | enum rdma_node_type { |
103 | /* IB values map to NodeInfo:NodeType. */ | |
104 | RDMA_NODE_IB_CA = 1, | |
105 | RDMA_NODE_IB_SWITCH, | |
106 | RDMA_NODE_IB_ROUTER, | |
180771a3 UM |
107 | RDMA_NODE_RNIC, |
108 | RDMA_NODE_USNIC, | |
5db5765e | 109 | RDMA_NODE_USNIC_UDP, |
1da177e4 LT |
110 | }; |
111 | ||
a0c1b2a3 EC |
112 | enum { |
113 | /* set the local administered indication */ | |
114 | IB_SA_WELL_KNOWN_GUID = BIT_ULL(57) | 2, | |
115 | }; | |
116 | ||
07ebafba TT |
117 | enum rdma_transport_type { |
118 | RDMA_TRANSPORT_IB, | |
180771a3 | 119 | RDMA_TRANSPORT_IWARP, |
248567f7 UM |
120 | RDMA_TRANSPORT_USNIC, |
121 | RDMA_TRANSPORT_USNIC_UDP | |
07ebafba TT |
122 | }; |
123 | ||
6b90a6d6 MW |
124 | enum rdma_protocol_type { |
125 | RDMA_PROTOCOL_IB, | |
126 | RDMA_PROTOCOL_IBOE, | |
127 | RDMA_PROTOCOL_IWARP, | |
128 | RDMA_PROTOCOL_USNIC_UDP | |
129 | }; | |
130 | ||
8385fd84 RD |
131 | __attribute_const__ enum rdma_transport_type |
132 | rdma_node_get_transport(enum rdma_node_type node_type); | |
07ebafba | 133 | |
c865f246 SK |
134 | enum rdma_network_type { |
135 | RDMA_NETWORK_IB, | |
136 | RDMA_NETWORK_ROCE_V1 = RDMA_NETWORK_IB, | |
137 | RDMA_NETWORK_IPV4, | |
138 | RDMA_NETWORK_IPV6 | |
139 | }; | |
140 | ||
141 | static inline enum ib_gid_type ib_network_to_gid_type(enum rdma_network_type network_type) | |
142 | { | |
143 | if (network_type == RDMA_NETWORK_IPV4 || | |
144 | network_type == RDMA_NETWORK_IPV6) | |
145 | return IB_GID_TYPE_ROCE_UDP_ENCAP; | |
146 | ||
147 | /* IB_GID_TYPE_IB same as RDMA_NETWORK_ROCE_V1 */ | |
148 | return IB_GID_TYPE_IB; | |
149 | } | |
150 | ||
151 | static inline enum rdma_network_type ib_gid_to_network_type(enum ib_gid_type gid_type, | |
152 | union ib_gid *gid) | |
153 | { | |
154 | if (gid_type == IB_GID_TYPE_IB) | |
155 | return RDMA_NETWORK_IB; | |
156 | ||
157 | if (ipv6_addr_v4mapped((struct in6_addr *)gid)) | |
158 | return RDMA_NETWORK_IPV4; | |
159 | else | |
160 | return RDMA_NETWORK_IPV6; | |
161 | } | |
162 | ||
a3f5adaf EC |
163 | enum rdma_link_layer { |
164 | IB_LINK_LAYER_UNSPECIFIED, | |
165 | IB_LINK_LAYER_INFINIBAND, | |
166 | IB_LINK_LAYER_ETHERNET, | |
167 | }; | |
168 | ||
1da177e4 | 169 | enum ib_device_cap_flags { |
7ca0bc53 LR |
170 | IB_DEVICE_RESIZE_MAX_WR = (1 << 0), |
171 | IB_DEVICE_BAD_PKEY_CNTR = (1 << 1), | |
172 | IB_DEVICE_BAD_QKEY_CNTR = (1 << 2), | |
173 | IB_DEVICE_RAW_MULTI = (1 << 3), | |
174 | IB_DEVICE_AUTO_PATH_MIG = (1 << 4), | |
175 | IB_DEVICE_CHANGE_PHY_PORT = (1 << 5), | |
176 | IB_DEVICE_UD_AV_PORT_ENFORCE = (1 << 6), | |
177 | IB_DEVICE_CURR_QP_STATE_MOD = (1 << 7), | |
178 | IB_DEVICE_SHUTDOWN_PORT = (1 << 8), | |
78b57f95 | 179 | /* Not in use, former INIT_TYPE = (1 << 9),*/ |
7ca0bc53 LR |
180 | IB_DEVICE_PORT_ACTIVE_EVENT = (1 << 10), |
181 | IB_DEVICE_SYS_IMAGE_GUID = (1 << 11), | |
182 | IB_DEVICE_RC_RNR_NAK_GEN = (1 << 12), | |
183 | IB_DEVICE_SRQ_RESIZE = (1 << 13), | |
184 | IB_DEVICE_N_NOTIFY_CQ = (1 << 14), | |
b1adc714 CH |
185 | |
186 | /* | |
187 | * This device supports a per-device lkey or stag that can be | |
188 | * used without performing a memory registration for the local | |
189 | * memory. Note that ULPs should never check this flag, but | |
190 | * instead of use the local_dma_lkey flag in the ib_pd structure, | |
191 | * which will always contain a usable lkey. | |
192 | */ | |
7ca0bc53 | 193 | IB_DEVICE_LOCAL_DMA_LKEY = (1 << 15), |
78b57f95 | 194 | /* Reserved, old SEND_W_INV = (1 << 16),*/ |
7ca0bc53 | 195 | IB_DEVICE_MEM_WINDOW = (1 << 17), |
e0605d91 EC |
196 | /* |
197 | * Devices should set IB_DEVICE_UD_IP_SUM if they support | |
198 | * insertion of UDP and TCP checksum on outgoing UD IPoIB | |
199 | * messages and can verify the validity of checksum for | |
200 | * incoming messages. Setting this flag implies that the | |
201 | * IPoIB driver may set NETIF_F_IP_CSUM for datagram mode. | |
202 | */ | |
7ca0bc53 LR |
203 | IB_DEVICE_UD_IP_CSUM = (1 << 18), |
204 | IB_DEVICE_UD_TSO = (1 << 19), | |
205 | IB_DEVICE_XRC = (1 << 20), | |
b1adc714 CH |
206 | |
207 | /* | |
208 | * This device supports the IB "base memory management extension", | |
209 | * which includes support for fast registrations (IB_WR_REG_MR, | |
210 | * IB_WR_LOCAL_INV and IB_WR_SEND_WITH_INV verbs). This flag should | |
211 | * also be set by any iWarp device which must support FRs to comply | |
212 | * to the iWarp verbs spec. iWarp devices also support the | |
213 | * IB_WR_RDMA_READ_WITH_INV verb for RDMA READs that invalidate the | |
214 | * stag. | |
215 | */ | |
7ca0bc53 LR |
216 | IB_DEVICE_MEM_MGT_EXTENSIONS = (1 << 21), |
217 | IB_DEVICE_BLOCK_MULTICAST_LOOPBACK = (1 << 22), | |
218 | IB_DEVICE_MEM_WINDOW_TYPE_2A = (1 << 23), | |
219 | IB_DEVICE_MEM_WINDOW_TYPE_2B = (1 << 24), | |
220 | IB_DEVICE_RC_IP_CSUM = (1 << 25), | |
ebaaee25 | 221 | /* Deprecated. Please use IB_RAW_PACKET_CAP_IP_CSUM. */ |
7ca0bc53 | 222 | IB_DEVICE_RAW_IP_CSUM = (1 << 26), |
8a06ce59 LR |
223 | /* |
224 | * Devices should set IB_DEVICE_CROSS_CHANNEL if they | |
225 | * support execution of WQEs that involve synchronization | |
226 | * of I/O operations with single completion queue managed | |
227 | * by hardware. | |
228 | */ | |
78b57f95 | 229 | IB_DEVICE_CROSS_CHANNEL = (1 << 27), |
7ca0bc53 LR |
230 | IB_DEVICE_MANAGED_FLOW_STEERING = (1 << 29), |
231 | IB_DEVICE_SIGNATURE_HANDOVER = (1 << 30), | |
47355b3c | 232 | IB_DEVICE_ON_DEMAND_PAGING = (1ULL << 31), |
f5aa9159 | 233 | IB_DEVICE_SG_GAPS_REG = (1ULL << 32), |
c7e162a4 | 234 | IB_DEVICE_VIRTUAL_FUNCTION = (1ULL << 33), |
ebaaee25 | 235 | /* Deprecated. Please use IB_RAW_PACKET_CAP_SCATTER_FCS. */ |
c7e162a4 | 236 | IB_DEVICE_RAW_SCATTER_FCS = (1ULL << 34), |
62e45949 | 237 | IB_DEVICE_RDMA_NETDEV_OPA_VNIC = (1ULL << 35), |
e1d2e887 NO |
238 | /* The device supports padding incoming writes to cacheline. */ |
239 | IB_DEVICE_PCI_WRITE_END_PADDING = (1ULL << 36), | |
1b01d335 SG |
240 | }; |
241 | ||
242 | enum ib_signature_prot_cap { | |
243 | IB_PROT_T10DIF_TYPE_1 = 1, | |
244 | IB_PROT_T10DIF_TYPE_2 = 1 << 1, | |
245 | IB_PROT_T10DIF_TYPE_3 = 1 << 2, | |
246 | }; | |
247 | ||
248 | enum ib_signature_guard_cap { | |
249 | IB_GUARD_T10DIF_CRC = 1, | |
250 | IB_GUARD_T10DIF_CSUM = 1 << 1, | |
1da177e4 LT |
251 | }; |
252 | ||
253 | enum ib_atomic_cap { | |
254 | IB_ATOMIC_NONE, | |
255 | IB_ATOMIC_HCA, | |
256 | IB_ATOMIC_GLOB | |
257 | }; | |
258 | ||
860f10a7 | 259 | enum ib_odp_general_cap_bits { |
25bf14d6 AK |
260 | IB_ODP_SUPPORT = 1 << 0, |
261 | IB_ODP_SUPPORT_IMPLICIT = 1 << 1, | |
860f10a7 SG |
262 | }; |
263 | ||
264 | enum ib_odp_transport_cap_bits { | |
265 | IB_ODP_SUPPORT_SEND = 1 << 0, | |
266 | IB_ODP_SUPPORT_RECV = 1 << 1, | |
267 | IB_ODP_SUPPORT_WRITE = 1 << 2, | |
268 | IB_ODP_SUPPORT_READ = 1 << 3, | |
269 | IB_ODP_SUPPORT_ATOMIC = 1 << 4, | |
270 | }; | |
271 | ||
272 | struct ib_odp_caps { | |
273 | uint64_t general_caps; | |
274 | struct { | |
275 | uint32_t rc_odp_caps; | |
276 | uint32_t uc_odp_caps; | |
277 | uint32_t ud_odp_caps; | |
278 | } per_transport_caps; | |
279 | }; | |
280 | ||
ccf20562 YH |
281 | struct ib_rss_caps { |
282 | /* Corresponding bit will be set if qp type from | |
283 | * 'enum ib_qp_type' is supported, e.g. | |
284 | * supported_qpts |= 1 << IB_QPT_UD | |
285 | */ | |
286 | u32 supported_qpts; | |
287 | u32 max_rwq_indirection_tables; | |
288 | u32 max_rwq_indirection_table_size; | |
289 | }; | |
290 | ||
6938fc1e AK |
291 | enum ib_tm_cap_flags { |
292 | /* Support tag matching on RC transport */ | |
293 | IB_TM_CAP_RC = 1 << 0, | |
294 | }; | |
295 | ||
78b1beb0 | 296 | struct ib_tm_caps { |
6938fc1e AK |
297 | /* Max size of RNDV header */ |
298 | u32 max_rndv_hdr_size; | |
299 | /* Max number of entries in tag matching list */ | |
300 | u32 max_num_tags; | |
301 | /* From enum ib_tm_cap_flags */ | |
302 | u32 flags; | |
303 | /* Max number of outstanding list operations */ | |
304 | u32 max_ops; | |
305 | /* Max number of SGE in tag matching entry */ | |
306 | u32 max_sge; | |
307 | }; | |
308 | ||
bcf4c1ea MB |
309 | struct ib_cq_init_attr { |
310 | unsigned int cqe; | |
311 | int comp_vector; | |
312 | u32 flags; | |
313 | }; | |
314 | ||
869ddcf8 YC |
315 | enum ib_cq_attr_mask { |
316 | IB_CQ_MODERATE = 1 << 0, | |
317 | }; | |
318 | ||
18bd9072 YC |
319 | struct ib_cq_caps { |
320 | u16 max_cq_moderation_count; | |
321 | u16 max_cq_moderation_period; | |
322 | }; | |
323 | ||
1da177e4 LT |
324 | struct ib_device_attr { |
325 | u64 fw_ver; | |
97f52eb4 | 326 | __be64 sys_image_guid; |
1da177e4 LT |
327 | u64 max_mr_size; |
328 | u64 page_size_cap; | |
329 | u32 vendor_id; | |
330 | u32 vendor_part_id; | |
331 | u32 hw_ver; | |
332 | int max_qp; | |
333 | int max_qp_wr; | |
fb532d6a | 334 | u64 device_cap_flags; |
1da177e4 LT |
335 | int max_sge; |
336 | int max_sge_rd; | |
337 | int max_cq; | |
338 | int max_cqe; | |
339 | int max_mr; | |
340 | int max_pd; | |
341 | int max_qp_rd_atom; | |
342 | int max_ee_rd_atom; | |
343 | int max_res_rd_atom; | |
344 | int max_qp_init_rd_atom; | |
345 | int max_ee_init_rd_atom; | |
346 | enum ib_atomic_cap atomic_cap; | |
5e80ba8f | 347 | enum ib_atomic_cap masked_atomic_cap; |
1da177e4 LT |
348 | int max_ee; |
349 | int max_rdd; | |
350 | int max_mw; | |
351 | int max_raw_ipv6_qp; | |
352 | int max_raw_ethy_qp; | |
353 | int max_mcast_grp; | |
354 | int max_mcast_qp_attach; | |
355 | int max_total_mcast_qp_attach; | |
356 | int max_ah; | |
357 | int max_fmr; | |
358 | int max_map_per_fmr; | |
359 | int max_srq; | |
360 | int max_srq_wr; | |
361 | int max_srq_sge; | |
00f7ec36 | 362 | unsigned int max_fast_reg_page_list_len; |
1da177e4 LT |
363 | u16 max_pkeys; |
364 | u8 local_ca_ack_delay; | |
1b01d335 SG |
365 | int sig_prot_cap; |
366 | int sig_guard_cap; | |
860f10a7 | 367 | struct ib_odp_caps odp_caps; |
24306dc6 MB |
368 | uint64_t timestamp_mask; |
369 | uint64_t hca_core_clock; /* in KHZ */ | |
ccf20562 YH |
370 | struct ib_rss_caps rss_caps; |
371 | u32 max_wq_type_rq; | |
ebaaee25 | 372 | u32 raw_packet_caps; /* Use ib_raw_packet_caps enum */ |
78b1beb0 | 373 | struct ib_tm_caps tm_caps; |
18bd9072 | 374 | struct ib_cq_caps cq_caps; |
1da177e4 LT |
375 | }; |
376 | ||
377 | enum ib_mtu { | |
378 | IB_MTU_256 = 1, | |
379 | IB_MTU_512 = 2, | |
380 | IB_MTU_1024 = 3, | |
381 | IB_MTU_2048 = 4, | |
382 | IB_MTU_4096 = 5 | |
383 | }; | |
384 | ||
385 | static inline int ib_mtu_enum_to_int(enum ib_mtu mtu) | |
386 | { | |
387 | switch (mtu) { | |
388 | case IB_MTU_256: return 256; | |
389 | case IB_MTU_512: return 512; | |
390 | case IB_MTU_1024: return 1024; | |
391 | case IB_MTU_2048: return 2048; | |
392 | case IB_MTU_4096: return 4096; | |
393 | default: return -1; | |
394 | } | |
395 | } | |
396 | ||
d3f4aadd AR |
397 | static inline enum ib_mtu ib_mtu_int_to_enum(int mtu) |
398 | { | |
399 | if (mtu >= 4096) | |
400 | return IB_MTU_4096; | |
401 | else if (mtu >= 2048) | |
402 | return IB_MTU_2048; | |
403 | else if (mtu >= 1024) | |
404 | return IB_MTU_1024; | |
405 | else if (mtu >= 512) | |
406 | return IB_MTU_512; | |
407 | else | |
408 | return IB_MTU_256; | |
409 | } | |
410 | ||
1da177e4 LT |
411 | enum ib_port_state { |
412 | IB_PORT_NOP = 0, | |
413 | IB_PORT_DOWN = 1, | |
414 | IB_PORT_INIT = 2, | |
415 | IB_PORT_ARMED = 3, | |
416 | IB_PORT_ACTIVE = 4, | |
417 | IB_PORT_ACTIVE_DEFER = 5 | |
418 | }; | |
419 | ||
420 | enum ib_port_cap_flags { | |
421 | IB_PORT_SM = 1 << 1, | |
422 | IB_PORT_NOTICE_SUP = 1 << 2, | |
423 | IB_PORT_TRAP_SUP = 1 << 3, | |
424 | IB_PORT_OPT_IPD_SUP = 1 << 4, | |
425 | IB_PORT_AUTO_MIGR_SUP = 1 << 5, | |
426 | IB_PORT_SL_MAP_SUP = 1 << 6, | |
427 | IB_PORT_MKEY_NVRAM = 1 << 7, | |
428 | IB_PORT_PKEY_NVRAM = 1 << 8, | |
429 | IB_PORT_LED_INFO_SUP = 1 << 9, | |
430 | IB_PORT_SM_DISABLED = 1 << 10, | |
431 | IB_PORT_SYS_IMAGE_GUID_SUP = 1 << 11, | |
432 | IB_PORT_PKEY_SW_EXT_PORT_TRAP_SUP = 1 << 12, | |
71eeba16 | 433 | IB_PORT_EXTENDED_SPEEDS_SUP = 1 << 14, |
1da177e4 LT |
434 | IB_PORT_CM_SUP = 1 << 16, |
435 | IB_PORT_SNMP_TUNNEL_SUP = 1 << 17, | |
436 | IB_PORT_REINIT_SUP = 1 << 18, | |
437 | IB_PORT_DEVICE_MGMT_SUP = 1 << 19, | |
438 | IB_PORT_VENDOR_CLASS_SUP = 1 << 20, | |
439 | IB_PORT_DR_NOTICE_SUP = 1 << 21, | |
440 | IB_PORT_CAP_MASK_NOTICE_SUP = 1 << 22, | |
441 | IB_PORT_BOOT_MGMT_SUP = 1 << 23, | |
442 | IB_PORT_LINK_LATENCY_SUP = 1 << 24, | |
b4a26a27 | 443 | IB_PORT_CLIENT_REG_SUP = 1 << 25, |
03db3a2d | 444 | IB_PORT_IP_BASED_GIDS = 1 << 26, |
1da177e4 LT |
445 | }; |
446 | ||
447 | enum ib_port_width { | |
448 | IB_WIDTH_1X = 1, | |
449 | IB_WIDTH_4X = 2, | |
450 | IB_WIDTH_8X = 4, | |
451 | IB_WIDTH_12X = 8 | |
452 | }; | |
453 | ||
454 | static inline int ib_width_enum_to_int(enum ib_port_width width) | |
455 | { | |
456 | switch (width) { | |
457 | case IB_WIDTH_1X: return 1; | |
458 | case IB_WIDTH_4X: return 4; | |
459 | case IB_WIDTH_8X: return 8; | |
460 | case IB_WIDTH_12X: return 12; | |
461 | default: return -1; | |
462 | } | |
463 | } | |
464 | ||
2e96691c OG |
465 | enum ib_port_speed { |
466 | IB_SPEED_SDR = 1, | |
467 | IB_SPEED_DDR = 2, | |
468 | IB_SPEED_QDR = 4, | |
469 | IB_SPEED_FDR10 = 8, | |
470 | IB_SPEED_FDR = 16, | |
12113a35 NO |
471 | IB_SPEED_EDR = 32, |
472 | IB_SPEED_HDR = 64 | |
2e96691c OG |
473 | }; |
474 | ||
b40f4757 CL |
475 | /** |
476 | * struct rdma_hw_stats | |
e945130b MB |
477 | * @lock - Mutex to protect parallel write access to lifespan and values |
478 | * of counters, which are 64bits and not guaranteeed to be written | |
479 | * atomicaly on 32bits systems. | |
b40f4757 CL |
480 | * @timestamp - Used by the core code to track when the last update was |
481 | * @lifespan - Used by the core code to determine how old the counters | |
482 | * should be before being updated again. Stored in jiffies, defaults | |
483 | * to 10 milliseconds, drivers can override the default be specifying | |
484 | * their own value during their allocation routine. | |
485 | * @name - Array of pointers to static names used for the counters in | |
486 | * directory. | |
487 | * @num_counters - How many hardware counters there are. If name is | |
488 | * shorter than this number, a kernel oops will result. Driver authors | |
489 | * are encouraged to leave BUILD_BUG_ON(ARRAY_SIZE(@name) < num_counters) | |
490 | * in their code to prevent this. | |
491 | * @value - Array of u64 counters that are accessed by the sysfs code and | |
492 | * filled in by the drivers get_stats routine | |
493 | */ | |
494 | struct rdma_hw_stats { | |
e945130b | 495 | struct mutex lock; /* Protect lifespan and values[] */ |
b40f4757 CL |
496 | unsigned long timestamp; |
497 | unsigned long lifespan; | |
498 | const char * const *names; | |
499 | int num_counters; | |
500 | u64 value[]; | |
7f624d02 SW |
501 | }; |
502 | ||
b40f4757 CL |
503 | #define RDMA_HW_STATS_DEFAULT_LIFESPAN 10 |
504 | /** | |
505 | * rdma_alloc_hw_stats_struct - Helper function to allocate dynamic struct | |
506 | * for drivers. | |
507 | * @names - Array of static const char * | |
508 | * @num_counters - How many elements in array | |
509 | * @lifespan - How many milliseconds between updates | |
510 | */ | |
511 | static inline struct rdma_hw_stats *rdma_alloc_hw_stats_struct( | |
512 | const char * const *names, int num_counters, | |
513 | unsigned long lifespan) | |
514 | { | |
515 | struct rdma_hw_stats *stats; | |
516 | ||
517 | stats = kzalloc(sizeof(*stats) + num_counters * sizeof(u64), | |
518 | GFP_KERNEL); | |
519 | if (!stats) | |
520 | return NULL; | |
521 | stats->names = names; | |
522 | stats->num_counters = num_counters; | |
523 | stats->lifespan = msecs_to_jiffies(lifespan); | |
524 | ||
525 | return stats; | |
526 | } | |
527 | ||
528 | ||
f9b22e35 IW |
529 | /* Define bits for the various functionality this port needs to be supported by |
530 | * the core. | |
531 | */ | |
532 | /* Management 0x00000FFF */ | |
533 | #define RDMA_CORE_CAP_IB_MAD 0x00000001 | |
534 | #define RDMA_CORE_CAP_IB_SMI 0x00000002 | |
535 | #define RDMA_CORE_CAP_IB_CM 0x00000004 | |
536 | #define RDMA_CORE_CAP_IW_CM 0x00000008 | |
537 | #define RDMA_CORE_CAP_IB_SA 0x00000010 | |
65995fee | 538 | #define RDMA_CORE_CAP_OPA_MAD 0x00000020 |
f9b22e35 IW |
539 | |
540 | /* Address format 0x000FF000 */ | |
541 | #define RDMA_CORE_CAP_AF_IB 0x00001000 | |
542 | #define RDMA_CORE_CAP_ETH_AH 0x00002000 | |
94d595c5 | 543 | #define RDMA_CORE_CAP_OPA_AH 0x00004000 |
f9b22e35 IW |
544 | |
545 | /* Protocol 0xFFF00000 */ | |
546 | #define RDMA_CORE_CAP_PROT_IB 0x00100000 | |
547 | #define RDMA_CORE_CAP_PROT_ROCE 0x00200000 | |
548 | #define RDMA_CORE_CAP_PROT_IWARP 0x00400000 | |
7766a99f | 549 | #define RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP 0x00800000 |
aa773bd4 | 550 | #define RDMA_CORE_CAP_PROT_RAW_PACKET 0x01000000 |
ce1e055f | 551 | #define RDMA_CORE_CAP_PROT_USNIC 0x02000000 |
f9b22e35 IW |
552 | |
553 | #define RDMA_CORE_PORT_IBA_IB (RDMA_CORE_CAP_PROT_IB \ | |
554 | | RDMA_CORE_CAP_IB_MAD \ | |
555 | | RDMA_CORE_CAP_IB_SMI \ | |
556 | | RDMA_CORE_CAP_IB_CM \ | |
557 | | RDMA_CORE_CAP_IB_SA \ | |
558 | | RDMA_CORE_CAP_AF_IB) | |
559 | #define RDMA_CORE_PORT_IBA_ROCE (RDMA_CORE_CAP_PROT_ROCE \ | |
560 | | RDMA_CORE_CAP_IB_MAD \ | |
561 | | RDMA_CORE_CAP_IB_CM \ | |
f9b22e35 IW |
562 | | RDMA_CORE_CAP_AF_IB \ |
563 | | RDMA_CORE_CAP_ETH_AH) | |
7766a99f MB |
564 | #define RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP \ |
565 | (RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP \ | |
566 | | RDMA_CORE_CAP_IB_MAD \ | |
567 | | RDMA_CORE_CAP_IB_CM \ | |
568 | | RDMA_CORE_CAP_AF_IB \ | |
569 | | RDMA_CORE_CAP_ETH_AH) | |
f9b22e35 IW |
570 | #define RDMA_CORE_PORT_IWARP (RDMA_CORE_CAP_PROT_IWARP \ |
571 | | RDMA_CORE_CAP_IW_CM) | |
65995fee IW |
572 | #define RDMA_CORE_PORT_INTEL_OPA (RDMA_CORE_PORT_IBA_IB \ |
573 | | RDMA_CORE_CAP_OPA_MAD) | |
f9b22e35 | 574 | |
aa773bd4 OG |
575 | #define RDMA_CORE_PORT_RAW_PACKET (RDMA_CORE_CAP_PROT_RAW_PACKET) |
576 | ||
ce1e055f OG |
577 | #define RDMA_CORE_PORT_USNIC (RDMA_CORE_CAP_PROT_USNIC) |
578 | ||
1da177e4 | 579 | struct ib_port_attr { |
fad61ad4 | 580 | u64 subnet_prefix; |
1da177e4 LT |
581 | enum ib_port_state state; |
582 | enum ib_mtu max_mtu; | |
583 | enum ib_mtu active_mtu; | |
584 | int gid_tbl_len; | |
585 | u32 port_cap_flags; | |
586 | u32 max_msg_sz; | |
587 | u32 bad_pkey_cntr; | |
588 | u32 qkey_viol_cntr; | |
589 | u16 pkey_tbl_len; | |
db58540b | 590 | u32 sm_lid; |
582faf31 | 591 | u32 lid; |
1da177e4 LT |
592 | u8 lmc; |
593 | u8 max_vl_num; | |
594 | u8 sm_sl; | |
595 | u8 subnet_timeout; | |
596 | u8 init_type_reply; | |
597 | u8 active_width; | |
598 | u8 active_speed; | |
599 | u8 phys_state; | |
a0c1b2a3 | 600 | bool grh_required; |
1da177e4 LT |
601 | }; |
602 | ||
603 | enum ib_device_modify_flags { | |
c5bcbbb9 RD |
604 | IB_DEVICE_MODIFY_SYS_IMAGE_GUID = 1 << 0, |
605 | IB_DEVICE_MODIFY_NODE_DESC = 1 << 1 | |
1da177e4 LT |
606 | }; |
607 | ||
bd99fdea YS |
608 | #define IB_DEVICE_NODE_DESC_MAX 64 |
609 | ||
1da177e4 LT |
610 | struct ib_device_modify { |
611 | u64 sys_image_guid; | |
bd99fdea | 612 | char node_desc[IB_DEVICE_NODE_DESC_MAX]; |
1da177e4 LT |
613 | }; |
614 | ||
615 | enum ib_port_modify_flags { | |
616 | IB_PORT_SHUTDOWN = 1, | |
617 | IB_PORT_INIT_TYPE = (1<<2), | |
cb49366f VN |
618 | IB_PORT_RESET_QKEY_CNTR = (1<<3), |
619 | IB_PORT_OPA_MASK_CHG = (1<<4) | |
1da177e4 LT |
620 | }; |
621 | ||
622 | struct ib_port_modify { | |
623 | u32 set_port_cap_mask; | |
624 | u32 clr_port_cap_mask; | |
625 | u8 init_type; | |
626 | }; | |
627 | ||
628 | enum ib_event_type { | |
629 | IB_EVENT_CQ_ERR, | |
630 | IB_EVENT_QP_FATAL, | |
631 | IB_EVENT_QP_REQ_ERR, | |
632 | IB_EVENT_QP_ACCESS_ERR, | |
633 | IB_EVENT_COMM_EST, | |
634 | IB_EVENT_SQ_DRAINED, | |
635 | IB_EVENT_PATH_MIG, | |
636 | IB_EVENT_PATH_MIG_ERR, | |
637 | IB_EVENT_DEVICE_FATAL, | |
638 | IB_EVENT_PORT_ACTIVE, | |
639 | IB_EVENT_PORT_ERR, | |
640 | IB_EVENT_LID_CHANGE, | |
641 | IB_EVENT_PKEY_CHANGE, | |
d41fcc67 RD |
642 | IB_EVENT_SM_CHANGE, |
643 | IB_EVENT_SRQ_ERR, | |
644 | IB_EVENT_SRQ_LIMIT_REACHED, | |
63942c9a | 645 | IB_EVENT_QP_LAST_WQE_REACHED, |
761d90ed OG |
646 | IB_EVENT_CLIENT_REREGISTER, |
647 | IB_EVENT_GID_CHANGE, | |
f213c052 | 648 | IB_EVENT_WQ_FATAL, |
1da177e4 LT |
649 | }; |
650 | ||
db7489e0 | 651 | const char *__attribute_const__ ib_event_msg(enum ib_event_type event); |
2b1b5b60 | 652 | |
1da177e4 LT |
653 | struct ib_event { |
654 | struct ib_device *device; | |
655 | union { | |
656 | struct ib_cq *cq; | |
657 | struct ib_qp *qp; | |
d41fcc67 | 658 | struct ib_srq *srq; |
f213c052 | 659 | struct ib_wq *wq; |
1da177e4 LT |
660 | u8 port_num; |
661 | } element; | |
662 | enum ib_event_type event; | |
663 | }; | |
664 | ||
665 | struct ib_event_handler { | |
666 | struct ib_device *device; | |
667 | void (*handler)(struct ib_event_handler *, struct ib_event *); | |
668 | struct list_head list; | |
669 | }; | |
670 | ||
671 | #define INIT_IB_EVENT_HANDLER(_ptr, _device, _handler) \ | |
672 | do { \ | |
673 | (_ptr)->device = _device; \ | |
674 | (_ptr)->handler = _handler; \ | |
675 | INIT_LIST_HEAD(&(_ptr)->list); \ | |
676 | } while (0) | |
677 | ||
678 | struct ib_global_route { | |
679 | union ib_gid dgid; | |
680 | u32 flow_label; | |
681 | u8 sgid_index; | |
682 | u8 hop_limit; | |
683 | u8 traffic_class; | |
684 | }; | |
685 | ||
513789ed | 686 | struct ib_grh { |
97f52eb4 SH |
687 | __be32 version_tclass_flow; |
688 | __be16 paylen; | |
513789ed HR |
689 | u8 next_hdr; |
690 | u8 hop_limit; | |
691 | union ib_gid sgid; | |
692 | union ib_gid dgid; | |
693 | }; | |
694 | ||
c865f246 SK |
695 | union rdma_network_hdr { |
696 | struct ib_grh ibgrh; | |
697 | struct { | |
698 | /* The IB spec states that if it's IPv4, the header | |
699 | * is located in the last 20 bytes of the header. | |
700 | */ | |
701 | u8 reserved[20]; | |
702 | struct iphdr roce4grh; | |
703 | }; | |
704 | }; | |
705 | ||
7dafbab3 DH |
706 | #define IB_QPN_MASK 0xFFFFFF |
707 | ||
1da177e4 LT |
708 | enum { |
709 | IB_MULTICAST_QPN = 0xffffff | |
710 | }; | |
711 | ||
f3a7c66b | 712 | #define IB_LID_PERMISSIVE cpu_to_be16(0xFFFF) |
b4e64397 | 713 | #define IB_MULTICAST_LID_BASE cpu_to_be16(0xC000) |
97f52eb4 | 714 | |
1da177e4 LT |
715 | enum ib_ah_flags { |
716 | IB_AH_GRH = 1 | |
717 | }; | |
718 | ||
bf6a9e31 JM |
719 | enum ib_rate { |
720 | IB_RATE_PORT_CURRENT = 0, | |
721 | IB_RATE_2_5_GBPS = 2, | |
722 | IB_RATE_5_GBPS = 5, | |
723 | IB_RATE_10_GBPS = 3, | |
724 | IB_RATE_20_GBPS = 6, | |
725 | IB_RATE_30_GBPS = 4, | |
726 | IB_RATE_40_GBPS = 7, | |
727 | IB_RATE_60_GBPS = 8, | |
728 | IB_RATE_80_GBPS = 9, | |
71eeba16 MA |
729 | IB_RATE_120_GBPS = 10, |
730 | IB_RATE_14_GBPS = 11, | |
731 | IB_RATE_56_GBPS = 12, | |
732 | IB_RATE_112_GBPS = 13, | |
733 | IB_RATE_168_GBPS = 14, | |
734 | IB_RATE_25_GBPS = 15, | |
735 | IB_RATE_100_GBPS = 16, | |
736 | IB_RATE_200_GBPS = 17, | |
737 | IB_RATE_300_GBPS = 18 | |
bf6a9e31 JM |
738 | }; |
739 | ||
740 | /** | |
741 | * ib_rate_to_mult - Convert the IB rate enum to a multiple of the | |
742 | * base rate of 2.5 Gbit/sec. For example, IB_RATE_5_GBPS will be | |
743 | * converted to 2, since 5 Gbit/sec is 2 * 2.5 Gbit/sec. | |
744 | * @rate: rate to convert. | |
745 | */ | |
8385fd84 | 746 | __attribute_const__ int ib_rate_to_mult(enum ib_rate rate); |
bf6a9e31 | 747 | |
71eeba16 MA |
748 | /** |
749 | * ib_rate_to_mbps - Convert the IB rate enum to Mbps. | |
750 | * For example, IB_RATE_2_5_GBPS will be converted to 2500. | |
751 | * @rate: rate to convert. | |
752 | */ | |
8385fd84 | 753 | __attribute_const__ int ib_rate_to_mbps(enum ib_rate rate); |
71eeba16 | 754 | |
17cd3a2d SG |
755 | |
756 | /** | |
9bee178b SG |
757 | * enum ib_mr_type - memory region type |
758 | * @IB_MR_TYPE_MEM_REG: memory region that is used for | |
759 | * normal registration | |
760 | * @IB_MR_TYPE_SIGNATURE: memory region that is used for | |
761 | * signature operations (data-integrity | |
762 | * capable regions) | |
f5aa9159 SG |
763 | * @IB_MR_TYPE_SG_GAPS: memory region that is capable to |
764 | * register any arbitrary sg lists (without | |
765 | * the normal mr constraints - see | |
766 | * ib_map_mr_sg) | |
17cd3a2d | 767 | */ |
9bee178b SG |
768 | enum ib_mr_type { |
769 | IB_MR_TYPE_MEM_REG, | |
770 | IB_MR_TYPE_SIGNATURE, | |
f5aa9159 | 771 | IB_MR_TYPE_SG_GAPS, |
17cd3a2d SG |
772 | }; |
773 | ||
1b01d335 | 774 | /** |
78eda2bb SG |
775 | * Signature types |
776 | * IB_SIG_TYPE_NONE: Unprotected. | |
777 | * IB_SIG_TYPE_T10_DIF: Type T10-DIF | |
1b01d335 | 778 | */ |
78eda2bb SG |
779 | enum ib_signature_type { |
780 | IB_SIG_TYPE_NONE, | |
781 | IB_SIG_TYPE_T10_DIF, | |
1b01d335 SG |
782 | }; |
783 | ||
784 | /** | |
785 | * Signature T10-DIF block-guard types | |
786 | * IB_T10DIF_CRC: Corresponds to T10-PI mandated CRC checksum rules. | |
787 | * IB_T10DIF_CSUM: Corresponds to IP checksum rules. | |
788 | */ | |
789 | enum ib_t10_dif_bg_type { | |
790 | IB_T10DIF_CRC, | |
791 | IB_T10DIF_CSUM | |
792 | }; | |
793 | ||
794 | /** | |
795 | * struct ib_t10_dif_domain - Parameters specific for T10-DIF | |
796 | * domain. | |
1b01d335 SG |
797 | * @bg_type: T10-DIF block guard type (CRC|CSUM) |
798 | * @pi_interval: protection information interval. | |
799 | * @bg: seed of guard computation. | |
800 | * @app_tag: application tag of guard block | |
801 | * @ref_tag: initial guard block reference tag. | |
78eda2bb SG |
802 | * @ref_remap: Indicate wethear the reftag increments each block |
803 | * @app_escape: Indicate to skip block check if apptag=0xffff | |
804 | * @ref_escape: Indicate to skip block check if reftag=0xffffffff | |
805 | * @apptag_check_mask: check bitmask of application tag. | |
1b01d335 SG |
806 | */ |
807 | struct ib_t10_dif_domain { | |
1b01d335 SG |
808 | enum ib_t10_dif_bg_type bg_type; |
809 | u16 pi_interval; | |
810 | u16 bg; | |
811 | u16 app_tag; | |
812 | u32 ref_tag; | |
78eda2bb SG |
813 | bool ref_remap; |
814 | bool app_escape; | |
815 | bool ref_escape; | |
816 | u16 apptag_check_mask; | |
1b01d335 SG |
817 | }; |
818 | ||
819 | /** | |
820 | * struct ib_sig_domain - Parameters for signature domain | |
821 | * @sig_type: specific signauture type | |
822 | * @sig: union of all signature domain attributes that may | |
823 | * be used to set domain layout. | |
824 | */ | |
825 | struct ib_sig_domain { | |
826 | enum ib_signature_type sig_type; | |
827 | union { | |
828 | struct ib_t10_dif_domain dif; | |
829 | } sig; | |
830 | }; | |
831 | ||
832 | /** | |
833 | * struct ib_sig_attrs - Parameters for signature handover operation | |
834 | * @check_mask: bitmask for signature byte check (8 bytes) | |
835 | * @mem: memory domain layout desciptor. | |
836 | * @wire: wire domain layout desciptor. | |
837 | */ | |
838 | struct ib_sig_attrs { | |
839 | u8 check_mask; | |
840 | struct ib_sig_domain mem; | |
841 | struct ib_sig_domain wire; | |
842 | }; | |
843 | ||
844 | enum ib_sig_err_type { | |
845 | IB_SIG_BAD_GUARD, | |
846 | IB_SIG_BAD_REFTAG, | |
847 | IB_SIG_BAD_APPTAG, | |
848 | }; | |
849 | ||
850 | /** | |
851 | * struct ib_sig_err - signature error descriptor | |
852 | */ | |
853 | struct ib_sig_err { | |
854 | enum ib_sig_err_type err_type; | |
855 | u32 expected; | |
856 | u32 actual; | |
857 | u64 sig_err_offset; | |
858 | u32 key; | |
859 | }; | |
860 | ||
861 | enum ib_mr_status_check { | |
862 | IB_MR_CHECK_SIG_STATUS = 1, | |
863 | }; | |
864 | ||
865 | /** | |
866 | * struct ib_mr_status - Memory region status container | |
867 | * | |
868 | * @fail_status: Bitmask of MR checks status. For each | |
869 | * failed check a corresponding status bit is set. | |
870 | * @sig_err: Additional info for IB_MR_CEHCK_SIG_STATUS | |
871 | * failure. | |
872 | */ | |
873 | struct ib_mr_status { | |
874 | u32 fail_status; | |
875 | struct ib_sig_err sig_err; | |
876 | }; | |
877 | ||
bf6a9e31 JM |
878 | /** |
879 | * mult_to_ib_rate - Convert a multiple of 2.5 Gbit/sec to an IB rate | |
880 | * enum. | |
881 | * @mult: multiple to convert. | |
882 | */ | |
8385fd84 | 883 | __attribute_const__ enum ib_rate mult_to_ib_rate(int mult); |
bf6a9e31 | 884 | |
44c58487 | 885 | enum rdma_ah_attr_type { |
87daac68 | 886 | RDMA_AH_ATTR_TYPE_UNDEFINED, |
44c58487 DC |
887 | RDMA_AH_ATTR_TYPE_IB, |
888 | RDMA_AH_ATTR_TYPE_ROCE, | |
64b4646e | 889 | RDMA_AH_ATTR_TYPE_OPA, |
44c58487 DC |
890 | }; |
891 | ||
892 | struct ib_ah_attr { | |
893 | u16 dlid; | |
894 | u8 src_path_bits; | |
895 | }; | |
896 | ||
897 | struct roce_ah_attr { | |
898 | u8 dmac[ETH_ALEN]; | |
899 | }; | |
900 | ||
64b4646e DC |
901 | struct opa_ah_attr { |
902 | u32 dlid; | |
903 | u8 src_path_bits; | |
d98bb7f7 | 904 | bool make_grd; |
64b4646e DC |
905 | }; |
906 | ||
90898850 | 907 | struct rdma_ah_attr { |
1da177e4 | 908 | struct ib_global_route grh; |
1da177e4 | 909 | u8 sl; |
1da177e4 | 910 | u8 static_rate; |
1da177e4 | 911 | u8 port_num; |
44c58487 DC |
912 | u8 ah_flags; |
913 | enum rdma_ah_attr_type type; | |
914 | union { | |
915 | struct ib_ah_attr ib; | |
916 | struct roce_ah_attr roce; | |
64b4646e | 917 | struct opa_ah_attr opa; |
44c58487 | 918 | }; |
1da177e4 LT |
919 | }; |
920 | ||
921 | enum ib_wc_status { | |
922 | IB_WC_SUCCESS, | |
923 | IB_WC_LOC_LEN_ERR, | |
924 | IB_WC_LOC_QP_OP_ERR, | |
925 | IB_WC_LOC_EEC_OP_ERR, | |
926 | IB_WC_LOC_PROT_ERR, | |
927 | IB_WC_WR_FLUSH_ERR, | |
928 | IB_WC_MW_BIND_ERR, | |
929 | IB_WC_BAD_RESP_ERR, | |
930 | IB_WC_LOC_ACCESS_ERR, | |
931 | IB_WC_REM_INV_REQ_ERR, | |
932 | IB_WC_REM_ACCESS_ERR, | |
933 | IB_WC_REM_OP_ERR, | |
934 | IB_WC_RETRY_EXC_ERR, | |
935 | IB_WC_RNR_RETRY_EXC_ERR, | |
936 | IB_WC_LOC_RDD_VIOL_ERR, | |
937 | IB_WC_REM_INV_RD_REQ_ERR, | |
938 | IB_WC_REM_ABORT_ERR, | |
939 | IB_WC_INV_EECN_ERR, | |
940 | IB_WC_INV_EEC_STATE_ERR, | |
941 | IB_WC_FATAL_ERR, | |
942 | IB_WC_RESP_TIMEOUT_ERR, | |
943 | IB_WC_GENERAL_ERR | |
944 | }; | |
945 | ||
db7489e0 | 946 | const char *__attribute_const__ ib_wc_status_msg(enum ib_wc_status status); |
2b1b5b60 | 947 | |
1da177e4 LT |
948 | enum ib_wc_opcode { |
949 | IB_WC_SEND, | |
950 | IB_WC_RDMA_WRITE, | |
951 | IB_WC_RDMA_READ, | |
952 | IB_WC_COMP_SWAP, | |
953 | IB_WC_FETCH_ADD, | |
c93570f2 | 954 | IB_WC_LSO, |
00f7ec36 | 955 | IB_WC_LOCAL_INV, |
4c67e2bf | 956 | IB_WC_REG_MR, |
5e80ba8f VS |
957 | IB_WC_MASKED_COMP_SWAP, |
958 | IB_WC_MASKED_FETCH_ADD, | |
1da177e4 LT |
959 | /* |
960 | * Set value of IB_WC_RECV so consumers can test if a completion is a | |
961 | * receive by testing (opcode & IB_WC_RECV). | |
962 | */ | |
963 | IB_WC_RECV = 1 << 7, | |
964 | IB_WC_RECV_RDMA_WITH_IMM | |
965 | }; | |
966 | ||
967 | enum ib_wc_flags { | |
968 | IB_WC_GRH = 1, | |
00f7ec36 SW |
969 | IB_WC_WITH_IMM = (1<<1), |
970 | IB_WC_WITH_INVALIDATE = (1<<2), | |
d927d505 | 971 | IB_WC_IP_CSUM_OK = (1<<3), |
dd5f03be MB |
972 | IB_WC_WITH_SMAC = (1<<4), |
973 | IB_WC_WITH_VLAN = (1<<5), | |
c865f246 | 974 | IB_WC_WITH_NETWORK_HDR_TYPE = (1<<6), |
1da177e4 LT |
975 | }; |
976 | ||
977 | struct ib_wc { | |
14d3a3b2 CH |
978 | union { |
979 | u64 wr_id; | |
980 | struct ib_cqe *wr_cqe; | |
981 | }; | |
1da177e4 LT |
982 | enum ib_wc_status status; |
983 | enum ib_wc_opcode opcode; | |
984 | u32 vendor_err; | |
985 | u32 byte_len; | |
062dbb69 | 986 | struct ib_qp *qp; |
00f7ec36 SW |
987 | union { |
988 | __be32 imm_data; | |
989 | u32 invalidate_rkey; | |
990 | } ex; | |
1da177e4 | 991 | u32 src_qp; |
cd2a6e7d | 992 | u32 slid; |
1da177e4 LT |
993 | int wc_flags; |
994 | u16 pkey_index; | |
1da177e4 LT |
995 | u8 sl; |
996 | u8 dlid_path_bits; | |
997 | u8 port_num; /* valid only for DR SMPs on switches */ | |
dd5f03be MB |
998 | u8 smac[ETH_ALEN]; |
999 | u16 vlan_id; | |
c865f246 | 1000 | u8 network_hdr_type; |
1da177e4 LT |
1001 | }; |
1002 | ||
ed23a727 RD |
1003 | enum ib_cq_notify_flags { |
1004 | IB_CQ_SOLICITED = 1 << 0, | |
1005 | IB_CQ_NEXT_COMP = 1 << 1, | |
1006 | IB_CQ_SOLICITED_MASK = IB_CQ_SOLICITED | IB_CQ_NEXT_COMP, | |
1007 | IB_CQ_REPORT_MISSED_EVENTS = 1 << 2, | |
1da177e4 LT |
1008 | }; |
1009 | ||
96104eda | 1010 | enum ib_srq_type { |
418d5130 | 1011 | IB_SRQT_BASIC, |
9c2c8496 AK |
1012 | IB_SRQT_XRC, |
1013 | IB_SRQT_TM, | |
96104eda SH |
1014 | }; |
1015 | ||
1a56ff6d AK |
1016 | static inline bool ib_srq_has_cq(enum ib_srq_type srq_type) |
1017 | { | |
9c2c8496 AK |
1018 | return srq_type == IB_SRQT_XRC || |
1019 | srq_type == IB_SRQT_TM; | |
1a56ff6d AK |
1020 | } |
1021 | ||
d41fcc67 RD |
1022 | enum ib_srq_attr_mask { |
1023 | IB_SRQ_MAX_WR = 1 << 0, | |
1024 | IB_SRQ_LIMIT = 1 << 1, | |
1025 | }; | |
1026 | ||
1027 | struct ib_srq_attr { | |
1028 | u32 max_wr; | |
1029 | u32 max_sge; | |
1030 | u32 srq_limit; | |
1031 | }; | |
1032 | ||
1033 | struct ib_srq_init_attr { | |
1034 | void (*event_handler)(struct ib_event *, void *); | |
1035 | void *srq_context; | |
1036 | struct ib_srq_attr attr; | |
96104eda | 1037 | enum ib_srq_type srq_type; |
418d5130 | 1038 | |
1a56ff6d AK |
1039 | struct { |
1040 | struct ib_cq *cq; | |
1041 | union { | |
1042 | struct { | |
1043 | struct ib_xrcd *xrcd; | |
1044 | } xrc; | |
9c2c8496 AK |
1045 | |
1046 | struct { | |
1047 | u32 max_num_tags; | |
1048 | } tag_matching; | |
1a56ff6d | 1049 | }; |
418d5130 | 1050 | } ext; |
d41fcc67 RD |
1051 | }; |
1052 | ||
1da177e4 LT |
1053 | struct ib_qp_cap { |
1054 | u32 max_send_wr; | |
1055 | u32 max_recv_wr; | |
1056 | u32 max_send_sge; | |
1057 | u32 max_recv_sge; | |
1058 | u32 max_inline_data; | |
a060b562 CH |
1059 | |
1060 | /* | |
1061 | * Maximum number of rdma_rw_ctx structures in flight at a time. | |
1062 | * ib_create_qp() will calculate the right amount of neededed WRs | |
1063 | * and MRs based on this. | |
1064 | */ | |
1065 | u32 max_rdma_ctxs; | |
1da177e4 LT |
1066 | }; |
1067 | ||
1068 | enum ib_sig_type { | |
1069 | IB_SIGNAL_ALL_WR, | |
1070 | IB_SIGNAL_REQ_WR | |
1071 | }; | |
1072 | ||
1073 | enum ib_qp_type { | |
1074 | /* | |
1075 | * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries | |
1076 | * here (and in that order) since the MAD layer uses them as | |
1077 | * indices into a 2-entry table. | |
1078 | */ | |
1079 | IB_QPT_SMI, | |
1080 | IB_QPT_GSI, | |
1081 | ||
1082 | IB_QPT_RC, | |
1083 | IB_QPT_UC, | |
1084 | IB_QPT_UD, | |
1085 | IB_QPT_RAW_IPV6, | |
b42b63cf | 1086 | IB_QPT_RAW_ETHERTYPE, |
c938a616 | 1087 | IB_QPT_RAW_PACKET = 8, |
b42b63cf SH |
1088 | IB_QPT_XRC_INI = 9, |
1089 | IB_QPT_XRC_TGT, | |
0134f16b | 1090 | IB_QPT_MAX, |
8011c1e3 | 1091 | IB_QPT_DRIVER = 0xFF, |
0134f16b JM |
1092 | /* Reserve a range for qp types internal to the low level driver. |
1093 | * These qp types will not be visible at the IB core layer, so the | |
1094 | * IB_QPT_MAX usages should not be affected in the core layer | |
1095 | */ | |
1096 | IB_QPT_RESERVED1 = 0x1000, | |
1097 | IB_QPT_RESERVED2, | |
1098 | IB_QPT_RESERVED3, | |
1099 | IB_QPT_RESERVED4, | |
1100 | IB_QPT_RESERVED5, | |
1101 | IB_QPT_RESERVED6, | |
1102 | IB_QPT_RESERVED7, | |
1103 | IB_QPT_RESERVED8, | |
1104 | IB_QPT_RESERVED9, | |
1105 | IB_QPT_RESERVED10, | |
1da177e4 LT |
1106 | }; |
1107 | ||
b846f25a | 1108 | enum ib_qp_create_flags { |
47ee1b9f RL |
1109 | IB_QP_CREATE_IPOIB_UD_LSO = 1 << 0, |
1110 | IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK = 1 << 1, | |
8a06ce59 LR |
1111 | IB_QP_CREATE_CROSS_CHANNEL = 1 << 2, |
1112 | IB_QP_CREATE_MANAGED_SEND = 1 << 3, | |
1113 | IB_QP_CREATE_MANAGED_RECV = 1 << 4, | |
90f1d1b4 | 1114 | IB_QP_CREATE_NETIF_QP = 1 << 5, |
1b01d335 | 1115 | IB_QP_CREATE_SIGNATURE_EN = 1 << 6, |
7855f584 | 1116 | /* FREE = 1 << 7, */ |
b531b909 | 1117 | IB_QP_CREATE_SCATTER_FCS = 1 << 8, |
9c2b270e | 1118 | IB_QP_CREATE_CVLAN_STRIPPING = 1 << 9, |
02984cc7 | 1119 | IB_QP_CREATE_SOURCE_QPN = 1 << 10, |
e1d2e887 | 1120 | IB_QP_CREATE_PCI_WRITE_END_PADDING = 1 << 11, |
d2b57063 JM |
1121 | /* reserve bits 26-31 for low level drivers' internal use */ |
1122 | IB_QP_CREATE_RESERVED_START = 1 << 26, | |
1123 | IB_QP_CREATE_RESERVED_END = 1 << 31, | |
b846f25a EC |
1124 | }; |
1125 | ||
73c40c61 YH |
1126 | /* |
1127 | * Note: users may not call ib_close_qp or ib_destroy_qp from the event_handler | |
1128 | * callback to destroy the passed in QP. | |
1129 | */ | |
1130 | ||
1da177e4 LT |
1131 | struct ib_qp_init_attr { |
1132 | void (*event_handler)(struct ib_event *, void *); | |
1133 | void *qp_context; | |
1134 | struct ib_cq *send_cq; | |
1135 | struct ib_cq *recv_cq; | |
1136 | struct ib_srq *srq; | |
b42b63cf | 1137 | struct ib_xrcd *xrcd; /* XRC TGT QPs only */ |
1da177e4 LT |
1138 | struct ib_qp_cap cap; |
1139 | enum ib_sig_type sq_sig_type; | |
1140 | enum ib_qp_type qp_type; | |
b846f25a | 1141 | enum ib_qp_create_flags create_flags; |
a060b562 CH |
1142 | |
1143 | /* | |
1144 | * Only needed for special QP types, or when using the RW API. | |
1145 | */ | |
1146 | u8 port_num; | |
a9017e23 | 1147 | struct ib_rwq_ind_table *rwq_ind_tbl; |
02984cc7 | 1148 | u32 source_qpn; |
1da177e4 LT |
1149 | }; |
1150 | ||
0e0ec7e0 SH |
1151 | struct ib_qp_open_attr { |
1152 | void (*event_handler)(struct ib_event *, void *); | |
1153 | void *qp_context; | |
1154 | u32 qp_num; | |
1155 | enum ib_qp_type qp_type; | |
1156 | }; | |
1157 | ||
1da177e4 LT |
1158 | enum ib_rnr_timeout { |
1159 | IB_RNR_TIMER_655_36 = 0, | |
1160 | IB_RNR_TIMER_000_01 = 1, | |
1161 | IB_RNR_TIMER_000_02 = 2, | |
1162 | IB_RNR_TIMER_000_03 = 3, | |
1163 | IB_RNR_TIMER_000_04 = 4, | |
1164 | IB_RNR_TIMER_000_06 = 5, | |
1165 | IB_RNR_TIMER_000_08 = 6, | |
1166 | IB_RNR_TIMER_000_12 = 7, | |
1167 | IB_RNR_TIMER_000_16 = 8, | |
1168 | IB_RNR_TIMER_000_24 = 9, | |
1169 | IB_RNR_TIMER_000_32 = 10, | |
1170 | IB_RNR_TIMER_000_48 = 11, | |
1171 | IB_RNR_TIMER_000_64 = 12, | |
1172 | IB_RNR_TIMER_000_96 = 13, | |
1173 | IB_RNR_TIMER_001_28 = 14, | |
1174 | IB_RNR_TIMER_001_92 = 15, | |
1175 | IB_RNR_TIMER_002_56 = 16, | |
1176 | IB_RNR_TIMER_003_84 = 17, | |
1177 | IB_RNR_TIMER_005_12 = 18, | |
1178 | IB_RNR_TIMER_007_68 = 19, | |
1179 | IB_RNR_TIMER_010_24 = 20, | |
1180 | IB_RNR_TIMER_015_36 = 21, | |
1181 | IB_RNR_TIMER_020_48 = 22, | |
1182 | IB_RNR_TIMER_030_72 = 23, | |
1183 | IB_RNR_TIMER_040_96 = 24, | |
1184 | IB_RNR_TIMER_061_44 = 25, | |
1185 | IB_RNR_TIMER_081_92 = 26, | |
1186 | IB_RNR_TIMER_122_88 = 27, | |
1187 | IB_RNR_TIMER_163_84 = 28, | |
1188 | IB_RNR_TIMER_245_76 = 29, | |
1189 | IB_RNR_TIMER_327_68 = 30, | |
1190 | IB_RNR_TIMER_491_52 = 31 | |
1191 | }; | |
1192 | ||
1193 | enum ib_qp_attr_mask { | |
1194 | IB_QP_STATE = 1, | |
1195 | IB_QP_CUR_STATE = (1<<1), | |
1196 | IB_QP_EN_SQD_ASYNC_NOTIFY = (1<<2), | |
1197 | IB_QP_ACCESS_FLAGS = (1<<3), | |
1198 | IB_QP_PKEY_INDEX = (1<<4), | |
1199 | IB_QP_PORT = (1<<5), | |
1200 | IB_QP_QKEY = (1<<6), | |
1201 | IB_QP_AV = (1<<7), | |
1202 | IB_QP_PATH_MTU = (1<<8), | |
1203 | IB_QP_TIMEOUT = (1<<9), | |
1204 | IB_QP_RETRY_CNT = (1<<10), | |
1205 | IB_QP_RNR_RETRY = (1<<11), | |
1206 | IB_QP_RQ_PSN = (1<<12), | |
1207 | IB_QP_MAX_QP_RD_ATOMIC = (1<<13), | |
1208 | IB_QP_ALT_PATH = (1<<14), | |
1209 | IB_QP_MIN_RNR_TIMER = (1<<15), | |
1210 | IB_QP_SQ_PSN = (1<<16), | |
1211 | IB_QP_MAX_DEST_RD_ATOMIC = (1<<17), | |
1212 | IB_QP_PATH_MIG_STATE = (1<<18), | |
1213 | IB_QP_CAP = (1<<19), | |
dd5f03be | 1214 | IB_QP_DEST_QPN = (1<<20), |
aa744cc0 MB |
1215 | IB_QP_RESERVED1 = (1<<21), |
1216 | IB_QP_RESERVED2 = (1<<22), | |
1217 | IB_QP_RESERVED3 = (1<<23), | |
1218 | IB_QP_RESERVED4 = (1<<24), | |
528e5a1b | 1219 | IB_QP_RATE_LIMIT = (1<<25), |
1da177e4 LT |
1220 | }; |
1221 | ||
1222 | enum ib_qp_state { | |
1223 | IB_QPS_RESET, | |
1224 | IB_QPS_INIT, | |
1225 | IB_QPS_RTR, | |
1226 | IB_QPS_RTS, | |
1227 | IB_QPS_SQD, | |
1228 | IB_QPS_SQE, | |
1229 | IB_QPS_ERR | |
1230 | }; | |
1231 | ||
1232 | enum ib_mig_state { | |
1233 | IB_MIG_MIGRATED, | |
1234 | IB_MIG_REARM, | |
1235 | IB_MIG_ARMED | |
1236 | }; | |
1237 | ||
7083e42e SM |
1238 | enum ib_mw_type { |
1239 | IB_MW_TYPE_1 = 1, | |
1240 | IB_MW_TYPE_2 = 2 | |
1241 | }; | |
1242 | ||
1da177e4 LT |
1243 | struct ib_qp_attr { |
1244 | enum ib_qp_state qp_state; | |
1245 | enum ib_qp_state cur_qp_state; | |
1246 | enum ib_mtu path_mtu; | |
1247 | enum ib_mig_state path_mig_state; | |
1248 | u32 qkey; | |
1249 | u32 rq_psn; | |
1250 | u32 sq_psn; | |
1251 | u32 dest_qp_num; | |
1252 | int qp_access_flags; | |
1253 | struct ib_qp_cap cap; | |
90898850 DC |
1254 | struct rdma_ah_attr ah_attr; |
1255 | struct rdma_ah_attr alt_ah_attr; | |
1da177e4 LT |
1256 | u16 pkey_index; |
1257 | u16 alt_pkey_index; | |
1258 | u8 en_sqd_async_notify; | |
1259 | u8 sq_draining; | |
1260 | u8 max_rd_atomic; | |
1261 | u8 max_dest_rd_atomic; | |
1262 | u8 min_rnr_timer; | |
1263 | u8 port_num; | |
1264 | u8 timeout; | |
1265 | u8 retry_cnt; | |
1266 | u8 rnr_retry; | |
1267 | u8 alt_port_num; | |
1268 | u8 alt_timeout; | |
528e5a1b | 1269 | u32 rate_limit; |
1da177e4 LT |
1270 | }; |
1271 | ||
1272 | enum ib_wr_opcode { | |
1273 | IB_WR_RDMA_WRITE, | |
1274 | IB_WR_RDMA_WRITE_WITH_IMM, | |
1275 | IB_WR_SEND, | |
1276 | IB_WR_SEND_WITH_IMM, | |
1277 | IB_WR_RDMA_READ, | |
1278 | IB_WR_ATOMIC_CMP_AND_SWP, | |
c93570f2 | 1279 | IB_WR_ATOMIC_FETCH_AND_ADD, |
0f39cf3d RD |
1280 | IB_WR_LSO, |
1281 | IB_WR_SEND_WITH_INV, | |
00f7ec36 SW |
1282 | IB_WR_RDMA_READ_WITH_INV, |
1283 | IB_WR_LOCAL_INV, | |
4c67e2bf | 1284 | IB_WR_REG_MR, |
5e80ba8f VS |
1285 | IB_WR_MASKED_ATOMIC_CMP_AND_SWP, |
1286 | IB_WR_MASKED_ATOMIC_FETCH_AND_ADD, | |
1b01d335 | 1287 | IB_WR_REG_SIG_MR, |
0134f16b JM |
1288 | /* reserve values for low level drivers' internal use. |
1289 | * These values will not be used at all in the ib core layer. | |
1290 | */ | |
1291 | IB_WR_RESERVED1 = 0xf0, | |
1292 | IB_WR_RESERVED2, | |
1293 | IB_WR_RESERVED3, | |
1294 | IB_WR_RESERVED4, | |
1295 | IB_WR_RESERVED5, | |
1296 | IB_WR_RESERVED6, | |
1297 | IB_WR_RESERVED7, | |
1298 | IB_WR_RESERVED8, | |
1299 | IB_WR_RESERVED9, | |
1300 | IB_WR_RESERVED10, | |
1da177e4 LT |
1301 | }; |
1302 | ||
1303 | enum ib_send_flags { | |
1304 | IB_SEND_FENCE = 1, | |
1305 | IB_SEND_SIGNALED = (1<<1), | |
1306 | IB_SEND_SOLICITED = (1<<2), | |
e0605d91 | 1307 | IB_SEND_INLINE = (1<<3), |
0134f16b JM |
1308 | IB_SEND_IP_CSUM = (1<<4), |
1309 | ||
1310 | /* reserve bits 26-31 for low level drivers' internal use */ | |
1311 | IB_SEND_RESERVED_START = (1 << 26), | |
1312 | IB_SEND_RESERVED_END = (1 << 31), | |
1da177e4 LT |
1313 | }; |
1314 | ||
1315 | struct ib_sge { | |
1316 | u64 addr; | |
1317 | u32 length; | |
1318 | u32 lkey; | |
1319 | }; | |
1320 | ||
14d3a3b2 CH |
1321 | struct ib_cqe { |
1322 | void (*done)(struct ib_cq *cq, struct ib_wc *wc); | |
1323 | }; | |
1324 | ||
1da177e4 LT |
1325 | struct ib_send_wr { |
1326 | struct ib_send_wr *next; | |
14d3a3b2 CH |
1327 | union { |
1328 | u64 wr_id; | |
1329 | struct ib_cqe *wr_cqe; | |
1330 | }; | |
1da177e4 LT |
1331 | struct ib_sge *sg_list; |
1332 | int num_sge; | |
1333 | enum ib_wr_opcode opcode; | |
1334 | int send_flags; | |
0f39cf3d RD |
1335 | union { |
1336 | __be32 imm_data; | |
1337 | u32 invalidate_rkey; | |
1338 | } ex; | |
1da177e4 LT |
1339 | }; |
1340 | ||
e622f2f4 CH |
1341 | struct ib_rdma_wr { |
1342 | struct ib_send_wr wr; | |
1343 | u64 remote_addr; | |
1344 | u32 rkey; | |
1345 | }; | |
1346 | ||
1347 | static inline struct ib_rdma_wr *rdma_wr(struct ib_send_wr *wr) | |
1348 | { | |
1349 | return container_of(wr, struct ib_rdma_wr, wr); | |
1350 | } | |
1351 | ||
1352 | struct ib_atomic_wr { | |
1353 | struct ib_send_wr wr; | |
1354 | u64 remote_addr; | |
1355 | u64 compare_add; | |
1356 | u64 swap; | |
1357 | u64 compare_add_mask; | |
1358 | u64 swap_mask; | |
1359 | u32 rkey; | |
1360 | }; | |
1361 | ||
1362 | static inline struct ib_atomic_wr *atomic_wr(struct ib_send_wr *wr) | |
1363 | { | |
1364 | return container_of(wr, struct ib_atomic_wr, wr); | |
1365 | } | |
1366 | ||
1367 | struct ib_ud_wr { | |
1368 | struct ib_send_wr wr; | |
1369 | struct ib_ah *ah; | |
1370 | void *header; | |
1371 | int hlen; | |
1372 | int mss; | |
1373 | u32 remote_qpn; | |
1374 | u32 remote_qkey; | |
1375 | u16 pkey_index; /* valid for GSI only */ | |
1376 | u8 port_num; /* valid for DR SMPs on switch only */ | |
1377 | }; | |
1378 | ||
1379 | static inline struct ib_ud_wr *ud_wr(struct ib_send_wr *wr) | |
1380 | { | |
1381 | return container_of(wr, struct ib_ud_wr, wr); | |
1382 | } | |
1383 | ||
4c67e2bf SG |
1384 | struct ib_reg_wr { |
1385 | struct ib_send_wr wr; | |
1386 | struct ib_mr *mr; | |
1387 | u32 key; | |
1388 | int access; | |
1389 | }; | |
1390 | ||
1391 | static inline struct ib_reg_wr *reg_wr(struct ib_send_wr *wr) | |
1392 | { | |
1393 | return container_of(wr, struct ib_reg_wr, wr); | |
1394 | } | |
1395 | ||
e622f2f4 CH |
1396 | struct ib_sig_handover_wr { |
1397 | struct ib_send_wr wr; | |
1398 | struct ib_sig_attrs *sig_attrs; | |
1399 | struct ib_mr *sig_mr; | |
1400 | int access_flags; | |
1401 | struct ib_sge *prot; | |
1402 | }; | |
1403 | ||
1404 | static inline struct ib_sig_handover_wr *sig_handover_wr(struct ib_send_wr *wr) | |
1405 | { | |
1406 | return container_of(wr, struct ib_sig_handover_wr, wr); | |
1407 | } | |
1408 | ||
1da177e4 LT |
1409 | struct ib_recv_wr { |
1410 | struct ib_recv_wr *next; | |
14d3a3b2 CH |
1411 | union { |
1412 | u64 wr_id; | |
1413 | struct ib_cqe *wr_cqe; | |
1414 | }; | |
1da177e4 LT |
1415 | struct ib_sge *sg_list; |
1416 | int num_sge; | |
1417 | }; | |
1418 | ||
1419 | enum ib_access_flags { | |
1420 | IB_ACCESS_LOCAL_WRITE = 1, | |
1421 | IB_ACCESS_REMOTE_WRITE = (1<<1), | |
1422 | IB_ACCESS_REMOTE_READ = (1<<2), | |
1423 | IB_ACCESS_REMOTE_ATOMIC = (1<<3), | |
7083e42e | 1424 | IB_ACCESS_MW_BIND = (1<<4), |
860f10a7 SG |
1425 | IB_ZERO_BASED = (1<<5), |
1426 | IB_ACCESS_ON_DEMAND = (1<<6), | |
0008b84e | 1427 | IB_ACCESS_HUGETLB = (1<<7), |
1da177e4 LT |
1428 | }; |
1429 | ||
b7d3e0a9 CH |
1430 | /* |
1431 | * XXX: these are apparently used for ->rereg_user_mr, no idea why they | |
1432 | * are hidden here instead of a uapi header! | |
1433 | */ | |
1da177e4 LT |
1434 | enum ib_mr_rereg_flags { |
1435 | IB_MR_REREG_TRANS = 1, | |
1436 | IB_MR_REREG_PD = (1<<1), | |
7e6edb9b MB |
1437 | IB_MR_REREG_ACCESS = (1<<2), |
1438 | IB_MR_REREG_SUPPORTED = ((IB_MR_REREG_ACCESS << 1) - 1) | |
1da177e4 LT |
1439 | }; |
1440 | ||
1da177e4 LT |
1441 | struct ib_fmr_attr { |
1442 | int max_pages; | |
1443 | int max_maps; | |
d36f34aa | 1444 | u8 page_shift; |
1da177e4 LT |
1445 | }; |
1446 | ||
882214e2 HE |
1447 | struct ib_umem; |
1448 | ||
38321256 MB |
1449 | enum rdma_remove_reason { |
1450 | /* Userspace requested uobject deletion. Call could fail */ | |
1451 | RDMA_REMOVE_DESTROY, | |
1452 | /* Context deletion. This call should delete the actual object itself */ | |
1453 | RDMA_REMOVE_CLOSE, | |
1454 | /* Driver is being hot-unplugged. This call should delete the actual object itself */ | |
1455 | RDMA_REMOVE_DRIVER_REMOVE, | |
1456 | /* Context is being cleaned-up, but commit was just completed */ | |
1457 | RDMA_REMOVE_DURING_CLEANUP, | |
1458 | }; | |
1459 | ||
43579b5f PP |
1460 | struct ib_rdmacg_object { |
1461 | #ifdef CONFIG_CGROUP_RDMA | |
1462 | struct rdma_cgroup *cg; /* owner rdma cgroup */ | |
1463 | #endif | |
1464 | }; | |
1465 | ||
e2773c06 RD |
1466 | struct ib_ucontext { |
1467 | struct ib_device *device; | |
771addf6 | 1468 | struct ib_uverbs_file *ufile; |
f7c6a7b5 | 1469 | int closing; |
8ada2c1c | 1470 | |
38321256 MB |
1471 | /* locking the uobjects_list */ |
1472 | struct mutex uobjects_lock; | |
1473 | struct list_head uobjects; | |
1474 | /* protects cleanup process from other actions */ | |
1475 | struct rw_semaphore cleanup_rwsem; | |
1476 | enum rdma_remove_reason cleanup_reason; | |
1477 | ||
8ada2c1c | 1478 | struct pid *tgid; |
882214e2 | 1479 | #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING |
f808c13f | 1480 | struct rb_root_cached umem_tree; |
882214e2 HE |
1481 | /* |
1482 | * Protects .umem_rbroot and tree, as well as odp_mrs_count and | |
1483 | * mmu notifiers registration. | |
1484 | */ | |
1485 | struct rw_semaphore umem_rwsem; | |
1486 | void (*invalidate_range)(struct ib_umem *umem, | |
1487 | unsigned long start, unsigned long end); | |
1488 | ||
1489 | struct mmu_notifier mn; | |
1490 | atomic_t notifier_count; | |
1491 | /* A list of umems that don't have private mmu notifier counters yet. */ | |
1492 | struct list_head no_private_counters; | |
1493 | int odp_mrs_count; | |
1494 | #endif | |
43579b5f PP |
1495 | |
1496 | struct ib_rdmacg_object cg_obj; | |
e2773c06 RD |
1497 | }; |
1498 | ||
1499 | struct ib_uobject { | |
1500 | u64 user_handle; /* handle given to us by userspace */ | |
1501 | struct ib_ucontext *context; /* associated user context */ | |
9ead190b | 1502 | void *object; /* containing object */ |
e2773c06 | 1503 | struct list_head list; /* link to context's list */ |
43579b5f | 1504 | struct ib_rdmacg_object cg_obj; /* rdmacg object */ |
b3d636b0 | 1505 | int id; /* index into kernel idr */ |
9ead190b | 1506 | struct kref ref; |
38321256 | 1507 | atomic_t usecnt; /* protects exclusive access */ |
d144da8c | 1508 | struct rcu_head rcu; /* kfree_rcu() overhead */ |
38321256 MB |
1509 | |
1510 | const struct uverbs_obj_type *type; | |
e2773c06 RD |
1511 | }; |
1512 | ||
cf8966b3 MB |
1513 | struct ib_uobject_file { |
1514 | struct ib_uobject uobj; | |
1515 | /* ufile contains the lock between context release and file close */ | |
1516 | struct ib_uverbs_file *ufile; | |
e2773c06 RD |
1517 | }; |
1518 | ||
e2773c06 | 1519 | struct ib_udata { |
309243ec | 1520 | const void __user *inbuf; |
e2773c06 RD |
1521 | void __user *outbuf; |
1522 | size_t inlen; | |
1523 | size_t outlen; | |
1524 | }; | |
1525 | ||
1da177e4 | 1526 | struct ib_pd { |
96249d70 | 1527 | u32 local_dma_lkey; |
ed082d36 | 1528 | u32 flags; |
e2773c06 RD |
1529 | struct ib_device *device; |
1530 | struct ib_uobject *uobject; | |
1531 | atomic_t usecnt; /* count all resources */ | |
50d46335 | 1532 | |
ed082d36 CH |
1533 | u32 unsafe_global_rkey; |
1534 | ||
50d46335 CH |
1535 | /* |
1536 | * Implementation details of the RDMA core, don't use in drivers: | |
1537 | */ | |
1538 | struct ib_mr *__internal_mr; | |
02d8883f | 1539 | struct rdma_restrack_entry res; |
1da177e4 LT |
1540 | }; |
1541 | ||
59991f94 SH |
1542 | struct ib_xrcd { |
1543 | struct ib_device *device; | |
d3d72d90 | 1544 | atomic_t usecnt; /* count all exposed resources */ |
53d0bd1e | 1545 | struct inode *inode; |
d3d72d90 SH |
1546 | |
1547 | struct mutex tgt_qp_mutex; | |
1548 | struct list_head tgt_qp_list; | |
02d8883f LR |
1549 | /* |
1550 | * Implementation details of the RDMA core, don't use in drivers: | |
1551 | */ | |
1552 | struct rdma_restrack_entry res; | |
59991f94 SH |
1553 | }; |
1554 | ||
1da177e4 LT |
1555 | struct ib_ah { |
1556 | struct ib_device *device; | |
1557 | struct ib_pd *pd; | |
e2773c06 | 1558 | struct ib_uobject *uobject; |
44c58487 | 1559 | enum rdma_ah_attr_type type; |
1da177e4 LT |
1560 | }; |
1561 | ||
1562 | typedef void (*ib_comp_handler)(struct ib_cq *cq, void *cq_context); | |
1563 | ||
14d3a3b2 CH |
1564 | enum ib_poll_context { |
1565 | IB_POLL_DIRECT, /* caller context, no hw completions */ | |
1566 | IB_POLL_SOFTIRQ, /* poll from softirq context */ | |
1567 | IB_POLL_WORKQUEUE, /* poll from workqueue */ | |
1568 | }; | |
1569 | ||
1da177e4 | 1570 | struct ib_cq { |
e2773c06 RD |
1571 | struct ib_device *device; |
1572 | struct ib_uobject *uobject; | |
1573 | ib_comp_handler comp_handler; | |
1574 | void (*event_handler)(struct ib_event *, void *); | |
4deccd6d | 1575 | void *cq_context; |
e2773c06 RD |
1576 | int cqe; |
1577 | atomic_t usecnt; /* count number of work queues */ | |
14d3a3b2 CH |
1578 | enum ib_poll_context poll_ctx; |
1579 | struct ib_wc *wc; | |
1580 | union { | |
1581 | struct irq_poll iop; | |
1582 | struct work_struct work; | |
1583 | }; | |
02d8883f LR |
1584 | /* |
1585 | * Implementation details of the RDMA core, don't use in drivers: | |
1586 | */ | |
1587 | struct rdma_restrack_entry res; | |
1da177e4 LT |
1588 | }; |
1589 | ||
1590 | struct ib_srq { | |
d41fcc67 RD |
1591 | struct ib_device *device; |
1592 | struct ib_pd *pd; | |
1593 | struct ib_uobject *uobject; | |
1594 | void (*event_handler)(struct ib_event *, void *); | |
1595 | void *srq_context; | |
96104eda | 1596 | enum ib_srq_type srq_type; |
1da177e4 | 1597 | atomic_t usecnt; |
418d5130 | 1598 | |
1a56ff6d AK |
1599 | struct { |
1600 | struct ib_cq *cq; | |
1601 | union { | |
1602 | struct { | |
1603 | struct ib_xrcd *xrcd; | |
1604 | u32 srq_num; | |
1605 | } xrc; | |
1606 | }; | |
418d5130 | 1607 | } ext; |
1da177e4 LT |
1608 | }; |
1609 | ||
ebaaee25 NO |
1610 | enum ib_raw_packet_caps { |
1611 | /* Strip cvlan from incoming packet and report it in the matching work | |
1612 | * completion is supported. | |
1613 | */ | |
1614 | IB_RAW_PACKET_CAP_CVLAN_STRIPPING = (1 << 0), | |
1615 | /* Scatter FCS field of an incoming packet to host memory is supported. | |
1616 | */ | |
1617 | IB_RAW_PACKET_CAP_SCATTER_FCS = (1 << 1), | |
1618 | /* Checksum offloads are supported (for both send and receive). */ | |
1619 | IB_RAW_PACKET_CAP_IP_CSUM = (1 << 2), | |
7d9336d8 MG |
1620 | /* When a packet is received for an RQ with no receive WQEs, the |
1621 | * packet processing is delayed. | |
1622 | */ | |
1623 | IB_RAW_PACKET_CAP_DELAY_DROP = (1 << 3), | |
ebaaee25 NO |
1624 | }; |
1625 | ||
5fd251c8 YH |
1626 | enum ib_wq_type { |
1627 | IB_WQT_RQ | |
1628 | }; | |
1629 | ||
1630 | enum ib_wq_state { | |
1631 | IB_WQS_RESET, | |
1632 | IB_WQS_RDY, | |
1633 | IB_WQS_ERR | |
1634 | }; | |
1635 | ||
1636 | struct ib_wq { | |
1637 | struct ib_device *device; | |
1638 | struct ib_uobject *uobject; | |
1639 | void *wq_context; | |
1640 | void (*event_handler)(struct ib_event *, void *); | |
1641 | struct ib_pd *pd; | |
1642 | struct ib_cq *cq; | |
1643 | u32 wq_num; | |
1644 | enum ib_wq_state state; | |
1645 | enum ib_wq_type wq_type; | |
1646 | atomic_t usecnt; | |
1647 | }; | |
1648 | ||
10bac72b NO |
1649 | enum ib_wq_flags { |
1650 | IB_WQ_FLAGS_CVLAN_STRIPPING = 1 << 0, | |
27b0df11 | 1651 | IB_WQ_FLAGS_SCATTER_FCS = 1 << 1, |
7d9336d8 | 1652 | IB_WQ_FLAGS_DELAY_DROP = 1 << 2, |
e1d2e887 | 1653 | IB_WQ_FLAGS_PCI_WRITE_END_PADDING = 1 << 3, |
10bac72b NO |
1654 | }; |
1655 | ||
5fd251c8 YH |
1656 | struct ib_wq_init_attr { |
1657 | void *wq_context; | |
1658 | enum ib_wq_type wq_type; | |
1659 | u32 max_wr; | |
1660 | u32 max_sge; | |
1661 | struct ib_cq *cq; | |
1662 | void (*event_handler)(struct ib_event *, void *); | |
10bac72b | 1663 | u32 create_flags; /* Use enum ib_wq_flags */ |
5fd251c8 YH |
1664 | }; |
1665 | ||
1666 | enum ib_wq_attr_mask { | |
10bac72b NO |
1667 | IB_WQ_STATE = 1 << 0, |
1668 | IB_WQ_CUR_STATE = 1 << 1, | |
1669 | IB_WQ_FLAGS = 1 << 2, | |
5fd251c8 YH |
1670 | }; |
1671 | ||
1672 | struct ib_wq_attr { | |
1673 | enum ib_wq_state wq_state; | |
1674 | enum ib_wq_state curr_wq_state; | |
10bac72b NO |
1675 | u32 flags; /* Use enum ib_wq_flags */ |
1676 | u32 flags_mask; /* Use enum ib_wq_flags */ | |
5fd251c8 YH |
1677 | }; |
1678 | ||
6d39786b YH |
1679 | struct ib_rwq_ind_table { |
1680 | struct ib_device *device; | |
1681 | struct ib_uobject *uobject; | |
1682 | atomic_t usecnt; | |
1683 | u32 ind_tbl_num; | |
1684 | u32 log_ind_tbl_size; | |
1685 | struct ib_wq **ind_tbl; | |
1686 | }; | |
1687 | ||
1688 | struct ib_rwq_ind_table_init_attr { | |
1689 | u32 log_ind_tbl_size; | |
1690 | /* Each entry is a pointer to Receive Work Queue */ | |
1691 | struct ib_wq **ind_tbl; | |
1692 | }; | |
1693 | ||
d291f1a6 DJ |
1694 | enum port_pkey_state { |
1695 | IB_PORT_PKEY_NOT_VALID = 0, | |
1696 | IB_PORT_PKEY_VALID = 1, | |
1697 | IB_PORT_PKEY_LISTED = 2, | |
1698 | }; | |
1699 | ||
1700 | struct ib_qp_security; | |
1701 | ||
1702 | struct ib_port_pkey { | |
1703 | enum port_pkey_state state; | |
1704 | u16 pkey_index; | |
1705 | u8 port_num; | |
1706 | struct list_head qp_list; | |
1707 | struct list_head to_error_list; | |
1708 | struct ib_qp_security *sec; | |
1709 | }; | |
1710 | ||
1711 | struct ib_ports_pkeys { | |
1712 | struct ib_port_pkey main; | |
1713 | struct ib_port_pkey alt; | |
1714 | }; | |
1715 | ||
1716 | struct ib_qp_security { | |
1717 | struct ib_qp *qp; | |
1718 | struct ib_device *dev; | |
1719 | /* Hold this mutex when changing port and pkey settings. */ | |
1720 | struct mutex mutex; | |
1721 | struct ib_ports_pkeys *ports_pkeys; | |
1722 | /* A list of all open shared QP handles. Required to enforce security | |
1723 | * properly for all users of a shared QP. | |
1724 | */ | |
1725 | struct list_head shared_qp_list; | |
1726 | void *security; | |
1727 | bool destroying; | |
1728 | atomic_t error_list_count; | |
1729 | struct completion error_complete; | |
1730 | int error_comps_pending; | |
1731 | }; | |
1732 | ||
632bc3f6 BVA |
1733 | /* |
1734 | * @max_write_sge: Maximum SGE elements per RDMA WRITE request. | |
1735 | * @max_read_sge: Maximum SGE elements per RDMA READ request. | |
1736 | */ | |
1da177e4 LT |
1737 | struct ib_qp { |
1738 | struct ib_device *device; | |
1739 | struct ib_pd *pd; | |
1740 | struct ib_cq *send_cq; | |
1741 | struct ib_cq *recv_cq; | |
fffb0383 CH |
1742 | spinlock_t mr_lock; |
1743 | int mrs_used; | |
a060b562 | 1744 | struct list_head rdma_mrs; |
0e353e34 | 1745 | struct list_head sig_mrs; |
1da177e4 | 1746 | struct ib_srq *srq; |
b42b63cf | 1747 | struct ib_xrcd *xrcd; /* XRC TGT QPs only */ |
d3d72d90 | 1748 | struct list_head xrcd_list; |
fffb0383 | 1749 | |
319a441d HHZ |
1750 | /* count times opened, mcast attaches, flow attaches */ |
1751 | atomic_t usecnt; | |
0e0ec7e0 SH |
1752 | struct list_head open_list; |
1753 | struct ib_qp *real_qp; | |
e2773c06 | 1754 | struct ib_uobject *uobject; |
1da177e4 LT |
1755 | void (*event_handler)(struct ib_event *, void *); |
1756 | void *qp_context; | |
1757 | u32 qp_num; | |
632bc3f6 BVA |
1758 | u32 max_write_sge; |
1759 | u32 max_read_sge; | |
1da177e4 | 1760 | enum ib_qp_type qp_type; |
a9017e23 | 1761 | struct ib_rwq_ind_table *rwq_ind_tbl; |
d291f1a6 | 1762 | struct ib_qp_security *qp_sec; |
498ca3c8 | 1763 | u8 port; |
02d8883f LR |
1764 | |
1765 | /* | |
1766 | * Implementation details of the RDMA core, don't use in drivers: | |
1767 | */ | |
1768 | struct rdma_restrack_entry res; | |
1da177e4 LT |
1769 | }; |
1770 | ||
1771 | struct ib_mr { | |
e2773c06 RD |
1772 | struct ib_device *device; |
1773 | struct ib_pd *pd; | |
e2773c06 RD |
1774 | u32 lkey; |
1775 | u32 rkey; | |
4c67e2bf | 1776 | u64 iova; |
edd31551 | 1777 | u64 length; |
4c67e2bf | 1778 | unsigned int page_size; |
d4a85c30 | 1779 | bool need_inval; |
fffb0383 CH |
1780 | union { |
1781 | struct ib_uobject *uobject; /* user */ | |
1782 | struct list_head qp_entry; /* FR */ | |
1783 | }; | |
fccec5b8 SW |
1784 | |
1785 | /* | |
1786 | * Implementation details of the RDMA core, don't use in drivers: | |
1787 | */ | |
1788 | struct rdma_restrack_entry res; | |
1da177e4 LT |
1789 | }; |
1790 | ||
1791 | struct ib_mw { | |
1792 | struct ib_device *device; | |
1793 | struct ib_pd *pd; | |
e2773c06 | 1794 | struct ib_uobject *uobject; |
1da177e4 | 1795 | u32 rkey; |
7083e42e | 1796 | enum ib_mw_type type; |
1da177e4 LT |
1797 | }; |
1798 | ||
1799 | struct ib_fmr { | |
1800 | struct ib_device *device; | |
1801 | struct ib_pd *pd; | |
1802 | struct list_head list; | |
1803 | u32 lkey; | |
1804 | u32 rkey; | |
1805 | }; | |
1806 | ||
319a441d HHZ |
1807 | /* Supported steering options */ |
1808 | enum ib_flow_attr_type { | |
1809 | /* steering according to rule specifications */ | |
1810 | IB_FLOW_ATTR_NORMAL = 0x0, | |
1811 | /* default unicast and multicast rule - | |
1812 | * receive all Eth traffic which isn't steered to any QP | |
1813 | */ | |
1814 | IB_FLOW_ATTR_ALL_DEFAULT = 0x1, | |
1815 | /* default multicast rule - | |
1816 | * receive all Eth multicast traffic which isn't steered to any QP | |
1817 | */ | |
1818 | IB_FLOW_ATTR_MC_DEFAULT = 0x2, | |
1819 | /* sniffer rule - receive all port traffic */ | |
1820 | IB_FLOW_ATTR_SNIFFER = 0x3 | |
1821 | }; | |
1822 | ||
1823 | /* Supported steering header types */ | |
1824 | enum ib_flow_spec_type { | |
1825 | /* L2 headers*/ | |
76bd23b3 MR |
1826 | IB_FLOW_SPEC_ETH = 0x20, |
1827 | IB_FLOW_SPEC_IB = 0x22, | |
319a441d | 1828 | /* L3 header*/ |
76bd23b3 MR |
1829 | IB_FLOW_SPEC_IPV4 = 0x30, |
1830 | IB_FLOW_SPEC_IPV6 = 0x31, | |
56ab0b38 | 1831 | IB_FLOW_SPEC_ESP = 0x34, |
319a441d | 1832 | /* L4 headers*/ |
76bd23b3 MR |
1833 | IB_FLOW_SPEC_TCP = 0x40, |
1834 | IB_FLOW_SPEC_UDP = 0x41, | |
0dbf3332 | 1835 | IB_FLOW_SPEC_VXLAN_TUNNEL = 0x50, |
fbf46860 | 1836 | IB_FLOW_SPEC_INNER = 0x100, |
460d0198 MR |
1837 | /* Actions */ |
1838 | IB_FLOW_SPEC_ACTION_TAG = 0x1000, | |
483a3966 | 1839 | IB_FLOW_SPEC_ACTION_DROP = 0x1001, |
9b828441 | 1840 | IB_FLOW_SPEC_ACTION_HANDLE = 0x1002, |
319a441d | 1841 | }; |
240ae00e | 1842 | #define IB_FLOW_SPEC_LAYER_MASK 0xF0 |
fbf46860 | 1843 | #define IB_FLOW_SPEC_SUPPORT_LAYERS 8 |
22878dbc | 1844 | |
319a441d HHZ |
1845 | /* Flow steering rule priority is set according to it's domain. |
1846 | * Lower domain value means higher priority. | |
1847 | */ | |
1848 | enum ib_flow_domain { | |
1849 | IB_FLOW_DOMAIN_USER, | |
1850 | IB_FLOW_DOMAIN_ETHTOOL, | |
1851 | IB_FLOW_DOMAIN_RFS, | |
1852 | IB_FLOW_DOMAIN_NIC, | |
1853 | IB_FLOW_DOMAIN_NUM /* Must be last */ | |
1854 | }; | |
1855 | ||
a3100a78 MV |
1856 | enum ib_flow_flags { |
1857 | IB_FLOW_ATTR_FLAGS_DONT_TRAP = 1UL << 1, /* Continue match, no steal */ | |
21e82d3e BP |
1858 | IB_FLOW_ATTR_FLAGS_EGRESS = 1UL << 2, /* Egress flow */ |
1859 | IB_FLOW_ATTR_FLAGS_RESERVED = 1UL << 3 /* Must be last */ | |
a3100a78 MV |
1860 | }; |
1861 | ||
319a441d HHZ |
1862 | struct ib_flow_eth_filter { |
1863 | u8 dst_mac[6]; | |
1864 | u8 src_mac[6]; | |
1865 | __be16 ether_type; | |
1866 | __be16 vlan_tag; | |
15dfbd6b MG |
1867 | /* Must be last */ |
1868 | u8 real_sz[0]; | |
319a441d HHZ |
1869 | }; |
1870 | ||
1871 | struct ib_flow_spec_eth { | |
fbf46860 | 1872 | u32 type; |
319a441d HHZ |
1873 | u16 size; |
1874 | struct ib_flow_eth_filter val; | |
1875 | struct ib_flow_eth_filter mask; | |
1876 | }; | |
1877 | ||
240ae00e MB |
1878 | struct ib_flow_ib_filter { |
1879 | __be16 dlid; | |
1880 | __u8 sl; | |
15dfbd6b MG |
1881 | /* Must be last */ |
1882 | u8 real_sz[0]; | |
240ae00e MB |
1883 | }; |
1884 | ||
1885 | struct ib_flow_spec_ib { | |
fbf46860 | 1886 | u32 type; |
240ae00e MB |
1887 | u16 size; |
1888 | struct ib_flow_ib_filter val; | |
1889 | struct ib_flow_ib_filter mask; | |
1890 | }; | |
1891 | ||
989a3a8f MG |
1892 | /* IPv4 header flags */ |
1893 | enum ib_ipv4_flags { | |
1894 | IB_IPV4_DONT_FRAG = 0x2, /* Don't enable packet fragmentation */ | |
1895 | IB_IPV4_MORE_FRAG = 0X4 /* For All fragmented packets except the | |
1896 | last have this flag set */ | |
1897 | }; | |
1898 | ||
319a441d HHZ |
1899 | struct ib_flow_ipv4_filter { |
1900 | __be32 src_ip; | |
1901 | __be32 dst_ip; | |
989a3a8f MG |
1902 | u8 proto; |
1903 | u8 tos; | |
1904 | u8 ttl; | |
1905 | u8 flags; | |
15dfbd6b MG |
1906 | /* Must be last */ |
1907 | u8 real_sz[0]; | |
319a441d HHZ |
1908 | }; |
1909 | ||
1910 | struct ib_flow_spec_ipv4 { | |
fbf46860 | 1911 | u32 type; |
319a441d HHZ |
1912 | u16 size; |
1913 | struct ib_flow_ipv4_filter val; | |
1914 | struct ib_flow_ipv4_filter mask; | |
1915 | }; | |
1916 | ||
4c2aae71 MG |
1917 | struct ib_flow_ipv6_filter { |
1918 | u8 src_ip[16]; | |
1919 | u8 dst_ip[16]; | |
a72c6a2b MG |
1920 | __be32 flow_label; |
1921 | u8 next_hdr; | |
1922 | u8 traffic_class; | |
1923 | u8 hop_limit; | |
15dfbd6b MG |
1924 | /* Must be last */ |
1925 | u8 real_sz[0]; | |
4c2aae71 MG |
1926 | }; |
1927 | ||
1928 | struct ib_flow_spec_ipv6 { | |
fbf46860 | 1929 | u32 type; |
4c2aae71 MG |
1930 | u16 size; |
1931 | struct ib_flow_ipv6_filter val; | |
1932 | struct ib_flow_ipv6_filter mask; | |
1933 | }; | |
1934 | ||
319a441d HHZ |
1935 | struct ib_flow_tcp_udp_filter { |
1936 | __be16 dst_port; | |
1937 | __be16 src_port; | |
15dfbd6b MG |
1938 | /* Must be last */ |
1939 | u8 real_sz[0]; | |
319a441d HHZ |
1940 | }; |
1941 | ||
1942 | struct ib_flow_spec_tcp_udp { | |
fbf46860 | 1943 | u32 type; |
319a441d HHZ |
1944 | u16 size; |
1945 | struct ib_flow_tcp_udp_filter val; | |
1946 | struct ib_flow_tcp_udp_filter mask; | |
1947 | }; | |
1948 | ||
0dbf3332 MR |
1949 | struct ib_flow_tunnel_filter { |
1950 | __be32 tunnel_id; | |
1951 | u8 real_sz[0]; | |
1952 | }; | |
1953 | ||
1954 | /* ib_flow_spec_tunnel describes the Vxlan tunnel | |
1955 | * the tunnel_id from val has the vni value | |
1956 | */ | |
1957 | struct ib_flow_spec_tunnel { | |
fbf46860 | 1958 | u32 type; |
0dbf3332 MR |
1959 | u16 size; |
1960 | struct ib_flow_tunnel_filter val; | |
1961 | struct ib_flow_tunnel_filter mask; | |
1962 | }; | |
1963 | ||
56ab0b38 MB |
1964 | struct ib_flow_esp_filter { |
1965 | __be32 spi; | |
1966 | __be32 seq; | |
1967 | /* Must be last */ | |
1968 | u8 real_sz[0]; | |
1969 | }; | |
1970 | ||
1971 | struct ib_flow_spec_esp { | |
1972 | u32 type; | |
1973 | u16 size; | |
1974 | struct ib_flow_esp_filter val; | |
1975 | struct ib_flow_esp_filter mask; | |
1976 | }; | |
1977 | ||
460d0198 MR |
1978 | struct ib_flow_spec_action_tag { |
1979 | enum ib_flow_spec_type type; | |
1980 | u16 size; | |
1981 | u32 tag_id; | |
1982 | }; | |
1983 | ||
483a3966 SS |
1984 | struct ib_flow_spec_action_drop { |
1985 | enum ib_flow_spec_type type; | |
1986 | u16 size; | |
1987 | }; | |
1988 | ||
9b828441 MB |
1989 | struct ib_flow_spec_action_handle { |
1990 | enum ib_flow_spec_type type; | |
1991 | u16 size; | |
1992 | struct ib_flow_action *act; | |
1993 | }; | |
1994 | ||
319a441d HHZ |
1995 | union ib_flow_spec { |
1996 | struct { | |
fbf46860 | 1997 | u32 type; |
319a441d HHZ |
1998 | u16 size; |
1999 | }; | |
2000 | struct ib_flow_spec_eth eth; | |
240ae00e | 2001 | struct ib_flow_spec_ib ib; |
319a441d HHZ |
2002 | struct ib_flow_spec_ipv4 ipv4; |
2003 | struct ib_flow_spec_tcp_udp tcp_udp; | |
4c2aae71 | 2004 | struct ib_flow_spec_ipv6 ipv6; |
0dbf3332 | 2005 | struct ib_flow_spec_tunnel tunnel; |
56ab0b38 | 2006 | struct ib_flow_spec_esp esp; |
460d0198 | 2007 | struct ib_flow_spec_action_tag flow_tag; |
483a3966 | 2008 | struct ib_flow_spec_action_drop drop; |
9b828441 | 2009 | struct ib_flow_spec_action_handle action; |
319a441d HHZ |
2010 | }; |
2011 | ||
2012 | struct ib_flow_attr { | |
2013 | enum ib_flow_attr_type type; | |
2014 | u16 size; | |
2015 | u16 priority; | |
2016 | u32 flags; | |
2017 | u8 num_of_specs; | |
2018 | u8 port; | |
2019 | /* Following are the optional layers according to user request | |
2020 | * struct ib_flow_spec_xxx | |
2021 | * struct ib_flow_spec_yyy | |
2022 | */ | |
2023 | }; | |
2024 | ||
2025 | struct ib_flow { | |
2026 | struct ib_qp *qp; | |
2027 | struct ib_uobject *uobject; | |
2028 | }; | |
2029 | ||
2eb9beae MB |
2030 | enum ib_flow_action_type { |
2031 | IB_FLOW_ACTION_UNSPECIFIED, | |
2032 | IB_FLOW_ACTION_ESP = 1, | |
2033 | }; | |
2034 | ||
2035 | struct ib_flow_action_attrs_esp_keymats { | |
2036 | enum ib_uverbs_flow_action_esp_keymat protocol; | |
2037 | union { | |
2038 | struct ib_uverbs_flow_action_esp_keymat_aes_gcm aes_gcm; | |
2039 | } keymat; | |
2040 | }; | |
2041 | ||
2042 | struct ib_flow_action_attrs_esp_replays { | |
2043 | enum ib_uverbs_flow_action_esp_replay protocol; | |
2044 | union { | |
2045 | struct ib_uverbs_flow_action_esp_replay_bmp bmp; | |
2046 | } replay; | |
2047 | }; | |
2048 | ||
2049 | enum ib_flow_action_attrs_esp_flags { | |
2050 | /* All user-space flags at the top: Use enum ib_uverbs_flow_action_esp_flags | |
2051 | * This is done in order to share the same flags between user-space and | |
2052 | * kernel and spare an unnecessary translation. | |
2053 | */ | |
2054 | ||
2055 | /* Kernel flags */ | |
2056 | IB_FLOW_ACTION_ESP_FLAGS_ESN_TRIGGERED = 1ULL << 32, | |
7d12f8d5 | 2057 | IB_FLOW_ACTION_ESP_FLAGS_MOD_ESP_ATTRS = 1ULL << 33, |
2eb9beae MB |
2058 | }; |
2059 | ||
2060 | struct ib_flow_spec_list { | |
2061 | struct ib_flow_spec_list *next; | |
2062 | union ib_flow_spec spec; | |
2063 | }; | |
2064 | ||
2065 | struct ib_flow_action_attrs_esp { | |
2066 | struct ib_flow_action_attrs_esp_keymats *keymat; | |
2067 | struct ib_flow_action_attrs_esp_replays *replay; | |
2068 | struct ib_flow_spec_list *encap; | |
2069 | /* Used only if IB_FLOW_ACTION_ESP_FLAGS_ESN_TRIGGERED is enabled. | |
2070 | * Value of 0 is a valid value. | |
2071 | */ | |
2072 | u32 esn; | |
2073 | u32 spi; | |
2074 | u32 seq; | |
2075 | u32 tfc_pad; | |
2076 | /* Use enum ib_flow_action_attrs_esp_flags */ | |
2077 | u64 flags; | |
2078 | u64 hard_limit_pkts; | |
2079 | }; | |
2080 | ||
2081 | struct ib_flow_action { | |
2082 | struct ib_device *device; | |
2083 | struct ib_uobject *uobject; | |
2084 | enum ib_flow_action_type type; | |
2085 | atomic_t usecnt; | |
2086 | }; | |
2087 | ||
4cd7c947 | 2088 | struct ib_mad_hdr; |
1da177e4 LT |
2089 | struct ib_grh; |
2090 | ||
2091 | enum ib_process_mad_flags { | |
2092 | IB_MAD_IGNORE_MKEY = 1, | |
2093 | IB_MAD_IGNORE_BKEY = 2, | |
2094 | IB_MAD_IGNORE_ALL = IB_MAD_IGNORE_MKEY | IB_MAD_IGNORE_BKEY | |
2095 | }; | |
2096 | ||
2097 | enum ib_mad_result { | |
2098 | IB_MAD_RESULT_FAILURE = 0, /* (!SUCCESS is the important flag) */ | |
2099 | IB_MAD_RESULT_SUCCESS = 1 << 0, /* MAD was successfully processed */ | |
2100 | IB_MAD_RESULT_REPLY = 1 << 1, /* Reply packet needs to be sent */ | |
2101 | IB_MAD_RESULT_CONSUMED = 1 << 2 /* Packet consumed: stop processing */ | |
2102 | }; | |
2103 | ||
21d6454a | 2104 | struct ib_port_cache { |
883c71fe | 2105 | u64 subnet_prefix; |
21d6454a JW |
2106 | struct ib_pkey_cache *pkey; |
2107 | struct ib_gid_table *gid; | |
2108 | u8 lmc; | |
2109 | enum ib_port_state port_state; | |
2110 | }; | |
2111 | ||
1da177e4 LT |
2112 | struct ib_cache { |
2113 | rwlock_t lock; | |
2114 | struct ib_event_handler event_handler; | |
21d6454a | 2115 | struct ib_port_cache *ports; |
1da177e4 LT |
2116 | }; |
2117 | ||
07ebafba TT |
2118 | struct iw_cm_verbs; |
2119 | ||
7738613e IW |
2120 | struct ib_port_immutable { |
2121 | int pkey_tbl_len; | |
2122 | int gid_tbl_len; | |
f9b22e35 | 2123 | u32 core_cap_flags; |
337877a4 | 2124 | u32 max_mad_size; |
7738613e IW |
2125 | }; |
2126 | ||
2fc77572 VN |
2127 | /* rdma netdev type - specifies protocol type */ |
2128 | enum rdma_netdev_t { | |
f0ad83ac NV |
2129 | RDMA_NETDEV_OPA_VNIC, |
2130 | RDMA_NETDEV_IPOIB, | |
2fc77572 VN |
2131 | }; |
2132 | ||
2133 | /** | |
2134 | * struct rdma_netdev - rdma netdev | |
2135 | * For cases where netstack interfacing is required. | |
2136 | */ | |
2137 | struct rdma_netdev { | |
2138 | void *clnt_priv; | |
2139 | struct ib_device *hca; | |
2140 | u8 port_num; | |
2141 | ||
8e959601 NV |
2142 | /* cleanup function must be specified */ |
2143 | void (*free_rdma_netdev)(struct net_device *netdev); | |
2144 | ||
2fc77572 VN |
2145 | /* control functions */ |
2146 | void (*set_id)(struct net_device *netdev, int id); | |
f0ad83ac NV |
2147 | /* send packet */ |
2148 | int (*send)(struct net_device *dev, struct sk_buff *skb, | |
2149 | struct ib_ah *address, u32 dqpn); | |
2150 | /* multicast */ | |
2151 | int (*attach_mcast)(struct net_device *dev, struct ib_device *hca, | |
2152 | union ib_gid *gid, u16 mlid, | |
2153 | int set_qkey, u32 qkey); | |
2154 | int (*detach_mcast)(struct net_device *dev, struct ib_device *hca, | |
2155 | union ib_gid *gid, u16 mlid); | |
2fc77572 VN |
2156 | }; |
2157 | ||
d291f1a6 DJ |
2158 | struct ib_port_pkey_list { |
2159 | /* Lock to hold while modifying the list. */ | |
2160 | spinlock_t list_lock; | |
2161 | struct list_head pkey_list; | |
2162 | }; | |
2163 | ||
2eb9beae MB |
2164 | struct uverbs_attr_bundle; |
2165 | ||
1da177e4 | 2166 | struct ib_device { |
0957c29f BVA |
2167 | /* Do not access @dma_device directly from ULP nor from HW drivers. */ |
2168 | struct device *dma_device; | |
2169 | ||
1da177e4 LT |
2170 | char name[IB_DEVICE_NAME_MAX]; |
2171 | ||
2172 | struct list_head event_handler_list; | |
2173 | spinlock_t event_handler_lock; | |
2174 | ||
17a55f79 | 2175 | spinlock_t client_data_lock; |
1da177e4 | 2176 | struct list_head core_list; |
7c1eb45a HE |
2177 | /* Access to the client_data_list is protected by the client_data_lock |
2178 | * spinlock and the lists_rwsem read-write semaphore */ | |
1da177e4 | 2179 | struct list_head client_data_list; |
1da177e4 LT |
2180 | |
2181 | struct ib_cache cache; | |
7738613e IW |
2182 | /** |
2183 | * port_immutable is indexed by port number | |
2184 | */ | |
2185 | struct ib_port_immutable *port_immutable; | |
1da177e4 | 2186 | |
f4fd0b22 MT |
2187 | int num_comp_vectors; |
2188 | ||
d291f1a6 DJ |
2189 | struct ib_port_pkey_list *port_pkey_list; |
2190 | ||
07ebafba TT |
2191 | struct iw_cm_verbs *iwcm; |
2192 | ||
b40f4757 CL |
2193 | /** |
2194 | * alloc_hw_stats - Allocate a struct rdma_hw_stats and fill in the | |
2195 | * driver initialized data. The struct is kfree()'ed by the sysfs | |
2196 | * core when the device is removed. A lifespan of -1 in the return | |
2197 | * struct tells the core to set a default lifespan. | |
2198 | */ | |
2199 | struct rdma_hw_stats *(*alloc_hw_stats)(struct ib_device *device, | |
2200 | u8 port_num); | |
2201 | /** | |
2202 | * get_hw_stats - Fill in the counter value(s) in the stats struct. | |
2203 | * @index - The index in the value array we wish to have updated, or | |
2204 | * num_counters if we want all stats updated | |
2205 | * Return codes - | |
2206 | * < 0 - Error, no counters updated | |
2207 | * index - Updated the single counter pointed to by index | |
2208 | * num_counters - Updated all counters (will reset the timestamp | |
2209 | * and prevent further calls for lifespan milliseconds) | |
2210 | * Drivers are allowed to update all counters in leiu of just the | |
2211 | * one given in index at their option | |
2212 | */ | |
2213 | int (*get_hw_stats)(struct ib_device *device, | |
2214 | struct rdma_hw_stats *stats, | |
2215 | u8 port, int index); | |
1da177e4 | 2216 | int (*query_device)(struct ib_device *device, |
2528e33e MB |
2217 | struct ib_device_attr *device_attr, |
2218 | struct ib_udata *udata); | |
1da177e4 LT |
2219 | int (*query_port)(struct ib_device *device, |
2220 | u8 port_num, | |
2221 | struct ib_port_attr *port_attr); | |
a3f5adaf EC |
2222 | enum rdma_link_layer (*get_link_layer)(struct ib_device *device, |
2223 | u8 port_num); | |
03db3a2d MB |
2224 | /* When calling get_netdev, the HW vendor's driver should return the |
2225 | * net device of device @device at port @port_num or NULL if such | |
2226 | * a net device doesn't exist. The vendor driver should call dev_hold | |
2227 | * on this net device. The HW vendor's device driver must guarantee | |
2228 | * that this function returns NULL before the net device reaches | |
2229 | * NETDEV_UNREGISTER_FINAL state. | |
2230 | */ | |
2231 | struct net_device *(*get_netdev)(struct ib_device *device, | |
2232 | u8 port_num); | |
72e1ff0f PP |
2233 | /* query_gid should be return GID value for @device, when @port_num |
2234 | * link layer is either IB or iWarp. It is no-op if @port_num port | |
2235 | * is RoCE link layer. | |
2236 | */ | |
1da177e4 LT |
2237 | int (*query_gid)(struct ib_device *device, |
2238 | u8 port_num, int index, | |
2239 | union ib_gid *gid); | |
414448d2 PP |
2240 | /* When calling add_gid, the HW vendor's driver should add the gid |
2241 | * of device of port at gid index available at @attr. Meta-info of | |
2242 | * that gid (for example, the network device related to this gid) is | |
2243 | * available at @attr. @context allows the HW vendor driver to store | |
2244 | * extra information together with a GID entry. The HW vendor driver may | |
2245 | * allocate memory to contain this information and store it in @context | |
2246 | * when a new GID entry is written to. Params are consistent until the | |
2247 | * next call of add_gid or delete_gid. The function should return 0 on | |
03db3a2d | 2248 | * success or error otherwise. The function could be called |
414448d2 PP |
2249 | * concurrently for different ports. This function is only called when |
2250 | * roce_gid_table is used. | |
03db3a2d | 2251 | */ |
414448d2 | 2252 | int (*add_gid)(const union ib_gid *gid, |
03db3a2d MB |
2253 | const struct ib_gid_attr *attr, |
2254 | void **context); | |
2255 | /* When calling del_gid, the HW vendor's driver should delete the | |
414448d2 PP |
2256 | * gid of device @device at gid index gid_index of port port_num |
2257 | * available in @attr. | |
03db3a2d MB |
2258 | * Upon the deletion of a GID entry, the HW vendor must free any |
2259 | * allocated memory. The caller will clear @context afterwards. | |
2260 | * This function is only called when roce_gid_table is used. | |
2261 | */ | |
414448d2 | 2262 | int (*del_gid)(const struct ib_gid_attr *attr, |
03db3a2d | 2263 | void **context); |
1da177e4 LT |
2264 | int (*query_pkey)(struct ib_device *device, |
2265 | u8 port_num, u16 index, u16 *pkey); | |
2266 | int (*modify_device)(struct ib_device *device, | |
2267 | int device_modify_mask, | |
2268 | struct ib_device_modify *device_modify); | |
2269 | int (*modify_port)(struct ib_device *device, | |
2270 | u8 port_num, int port_modify_mask, | |
2271 | struct ib_port_modify *port_modify); | |
e2773c06 RD |
2272 | struct ib_ucontext * (*alloc_ucontext)(struct ib_device *device, |
2273 | struct ib_udata *udata); | |
2274 | int (*dealloc_ucontext)(struct ib_ucontext *context); | |
2275 | int (*mmap)(struct ib_ucontext *context, | |
2276 | struct vm_area_struct *vma); | |
2277 | struct ib_pd * (*alloc_pd)(struct ib_device *device, | |
2278 | struct ib_ucontext *context, | |
2279 | struct ib_udata *udata); | |
1da177e4 LT |
2280 | int (*dealloc_pd)(struct ib_pd *pd); |
2281 | struct ib_ah * (*create_ah)(struct ib_pd *pd, | |
90898850 | 2282 | struct rdma_ah_attr *ah_attr, |
477864c8 | 2283 | struct ib_udata *udata); |
1da177e4 | 2284 | int (*modify_ah)(struct ib_ah *ah, |
90898850 | 2285 | struct rdma_ah_attr *ah_attr); |
1da177e4 | 2286 | int (*query_ah)(struct ib_ah *ah, |
90898850 | 2287 | struct rdma_ah_attr *ah_attr); |
1da177e4 | 2288 | int (*destroy_ah)(struct ib_ah *ah); |
d41fcc67 RD |
2289 | struct ib_srq * (*create_srq)(struct ib_pd *pd, |
2290 | struct ib_srq_init_attr *srq_init_attr, | |
2291 | struct ib_udata *udata); | |
2292 | int (*modify_srq)(struct ib_srq *srq, | |
2293 | struct ib_srq_attr *srq_attr, | |
9bc57e2d RC |
2294 | enum ib_srq_attr_mask srq_attr_mask, |
2295 | struct ib_udata *udata); | |
d41fcc67 RD |
2296 | int (*query_srq)(struct ib_srq *srq, |
2297 | struct ib_srq_attr *srq_attr); | |
2298 | int (*destroy_srq)(struct ib_srq *srq); | |
2299 | int (*post_srq_recv)(struct ib_srq *srq, | |
2300 | struct ib_recv_wr *recv_wr, | |
2301 | struct ib_recv_wr **bad_recv_wr); | |
1da177e4 | 2302 | struct ib_qp * (*create_qp)(struct ib_pd *pd, |
e2773c06 RD |
2303 | struct ib_qp_init_attr *qp_init_attr, |
2304 | struct ib_udata *udata); | |
1da177e4 LT |
2305 | int (*modify_qp)(struct ib_qp *qp, |
2306 | struct ib_qp_attr *qp_attr, | |
9bc57e2d RC |
2307 | int qp_attr_mask, |
2308 | struct ib_udata *udata); | |
1da177e4 LT |
2309 | int (*query_qp)(struct ib_qp *qp, |
2310 | struct ib_qp_attr *qp_attr, | |
2311 | int qp_attr_mask, | |
2312 | struct ib_qp_init_attr *qp_init_attr); | |
2313 | int (*destroy_qp)(struct ib_qp *qp); | |
2314 | int (*post_send)(struct ib_qp *qp, | |
2315 | struct ib_send_wr *send_wr, | |
2316 | struct ib_send_wr **bad_send_wr); | |
2317 | int (*post_recv)(struct ib_qp *qp, | |
2318 | struct ib_recv_wr *recv_wr, | |
2319 | struct ib_recv_wr **bad_recv_wr); | |
bcf4c1ea MB |
2320 | struct ib_cq * (*create_cq)(struct ib_device *device, |
2321 | const struct ib_cq_init_attr *attr, | |
e2773c06 RD |
2322 | struct ib_ucontext *context, |
2323 | struct ib_udata *udata); | |
2dd57162 EC |
2324 | int (*modify_cq)(struct ib_cq *cq, u16 cq_count, |
2325 | u16 cq_period); | |
1da177e4 | 2326 | int (*destroy_cq)(struct ib_cq *cq); |
33b9b3ee RD |
2327 | int (*resize_cq)(struct ib_cq *cq, int cqe, |
2328 | struct ib_udata *udata); | |
1da177e4 LT |
2329 | int (*poll_cq)(struct ib_cq *cq, int num_entries, |
2330 | struct ib_wc *wc); | |
2331 | int (*peek_cq)(struct ib_cq *cq, int wc_cnt); | |
2332 | int (*req_notify_cq)(struct ib_cq *cq, | |
ed23a727 | 2333 | enum ib_cq_notify_flags flags); |
1da177e4 LT |
2334 | int (*req_ncomp_notif)(struct ib_cq *cq, |
2335 | int wc_cnt); | |
2336 | struct ib_mr * (*get_dma_mr)(struct ib_pd *pd, | |
2337 | int mr_access_flags); | |
e2773c06 | 2338 | struct ib_mr * (*reg_user_mr)(struct ib_pd *pd, |
f7c6a7b5 RD |
2339 | u64 start, u64 length, |
2340 | u64 virt_addr, | |
e2773c06 RD |
2341 | int mr_access_flags, |
2342 | struct ib_udata *udata); | |
7e6edb9b MB |
2343 | int (*rereg_user_mr)(struct ib_mr *mr, |
2344 | int flags, | |
2345 | u64 start, u64 length, | |
2346 | u64 virt_addr, | |
2347 | int mr_access_flags, | |
2348 | struct ib_pd *pd, | |
2349 | struct ib_udata *udata); | |
1da177e4 | 2350 | int (*dereg_mr)(struct ib_mr *mr); |
9bee178b SG |
2351 | struct ib_mr * (*alloc_mr)(struct ib_pd *pd, |
2352 | enum ib_mr_type mr_type, | |
2353 | u32 max_num_sg); | |
4c67e2bf SG |
2354 | int (*map_mr_sg)(struct ib_mr *mr, |
2355 | struct scatterlist *sg, | |
ff2ba993 | 2356 | int sg_nents, |
9aa8b321 | 2357 | unsigned int *sg_offset); |
7083e42e | 2358 | struct ib_mw * (*alloc_mw)(struct ib_pd *pd, |
b2a239df MB |
2359 | enum ib_mw_type type, |
2360 | struct ib_udata *udata); | |
1da177e4 LT |
2361 | int (*dealloc_mw)(struct ib_mw *mw); |
2362 | struct ib_fmr * (*alloc_fmr)(struct ib_pd *pd, | |
2363 | int mr_access_flags, | |
2364 | struct ib_fmr_attr *fmr_attr); | |
2365 | int (*map_phys_fmr)(struct ib_fmr *fmr, | |
2366 | u64 *page_list, int list_len, | |
2367 | u64 iova); | |
2368 | int (*unmap_fmr)(struct list_head *fmr_list); | |
2369 | int (*dealloc_fmr)(struct ib_fmr *fmr); | |
2370 | int (*attach_mcast)(struct ib_qp *qp, | |
2371 | union ib_gid *gid, | |
2372 | u16 lid); | |
2373 | int (*detach_mcast)(struct ib_qp *qp, | |
2374 | union ib_gid *gid, | |
2375 | u16 lid); | |
2376 | int (*process_mad)(struct ib_device *device, | |
2377 | int process_mad_flags, | |
2378 | u8 port_num, | |
a97e2d86 IW |
2379 | const struct ib_wc *in_wc, |
2380 | const struct ib_grh *in_grh, | |
4cd7c947 IW |
2381 | const struct ib_mad_hdr *in_mad, |
2382 | size_t in_mad_size, | |
2383 | struct ib_mad_hdr *out_mad, | |
2384 | size_t *out_mad_size, | |
2385 | u16 *out_mad_pkey_index); | |
59991f94 SH |
2386 | struct ib_xrcd * (*alloc_xrcd)(struct ib_device *device, |
2387 | struct ib_ucontext *ucontext, | |
2388 | struct ib_udata *udata); | |
2389 | int (*dealloc_xrcd)(struct ib_xrcd *xrcd); | |
319a441d HHZ |
2390 | struct ib_flow * (*create_flow)(struct ib_qp *qp, |
2391 | struct ib_flow_attr | |
2392 | *flow_attr, | |
2393 | int domain); | |
2394 | int (*destroy_flow)(struct ib_flow *flow_id); | |
1b01d335 SG |
2395 | int (*check_mr_status)(struct ib_mr *mr, u32 check_mask, |
2396 | struct ib_mr_status *mr_status); | |
036b1063 | 2397 | void (*disassociate_ucontext)(struct ib_ucontext *ibcontext); |
765d6774 SW |
2398 | void (*drain_rq)(struct ib_qp *qp); |
2399 | void (*drain_sq)(struct ib_qp *qp); | |
50174a7f EC |
2400 | int (*set_vf_link_state)(struct ib_device *device, int vf, u8 port, |
2401 | int state); | |
2402 | int (*get_vf_config)(struct ib_device *device, int vf, u8 port, | |
2403 | struct ifla_vf_info *ivf); | |
2404 | int (*get_vf_stats)(struct ib_device *device, int vf, u8 port, | |
2405 | struct ifla_vf_stats *stats); | |
2406 | int (*set_vf_guid)(struct ib_device *device, int vf, u8 port, u64 guid, | |
2407 | int type); | |
5fd251c8 YH |
2408 | struct ib_wq * (*create_wq)(struct ib_pd *pd, |
2409 | struct ib_wq_init_attr *init_attr, | |
2410 | struct ib_udata *udata); | |
2411 | int (*destroy_wq)(struct ib_wq *wq); | |
2412 | int (*modify_wq)(struct ib_wq *wq, | |
2413 | struct ib_wq_attr *attr, | |
2414 | u32 wq_attr_mask, | |
2415 | struct ib_udata *udata); | |
6d39786b YH |
2416 | struct ib_rwq_ind_table * (*create_rwq_ind_table)(struct ib_device *device, |
2417 | struct ib_rwq_ind_table_init_attr *init_attr, | |
2418 | struct ib_udata *udata); | |
2419 | int (*destroy_rwq_ind_table)(struct ib_rwq_ind_table *wq_ind_table); | |
2eb9beae MB |
2420 | struct ib_flow_action * (*create_flow_action_esp)(struct ib_device *device, |
2421 | const struct ib_flow_action_attrs_esp *attr, | |
2422 | struct uverbs_attr_bundle *attrs); | |
2423 | int (*destroy_flow_action)(struct ib_flow_action *action); | |
7d12f8d5 MB |
2424 | int (*modify_flow_action_esp)(struct ib_flow_action *action, |
2425 | const struct ib_flow_action_attrs_esp *attr, | |
2426 | struct uverbs_attr_bundle *attrs); | |
2eb9beae | 2427 | |
2fc77572 | 2428 | /** |
8e959601 | 2429 | * rdma netdev operation |
2fc77572 VN |
2430 | * |
2431 | * Driver implementing alloc_rdma_netdev must return -EOPNOTSUPP if it | |
2432 | * doesn't support the specified rdma netdev type. | |
2433 | */ | |
2434 | struct net_device *(*alloc_rdma_netdev)( | |
2435 | struct ib_device *device, | |
2436 | u8 port_num, | |
2437 | enum rdma_netdev_t type, | |
2438 | const char *name, | |
2439 | unsigned char name_assign_type, | |
2440 | void (*setup)(struct net_device *)); | |
9b513090 | 2441 | |
e2773c06 | 2442 | struct module *owner; |
f4e91eb4 | 2443 | struct device dev; |
35be0681 | 2444 | struct kobject *ports_parent; |
1da177e4 LT |
2445 | struct list_head port_list; |
2446 | ||
2447 | enum { | |
2448 | IB_DEV_UNINITIALIZED, | |
2449 | IB_DEV_REGISTERED, | |
2450 | IB_DEV_UNREGISTERED | |
2451 | } reg_state; | |
2452 | ||
274c0891 | 2453 | int uverbs_abi_ver; |
17a55f79 | 2454 | u64 uverbs_cmd_mask; |
f21519b2 | 2455 | u64 uverbs_ex_cmd_mask; |
274c0891 | 2456 | |
bd99fdea | 2457 | char node_desc[IB_DEVICE_NODE_DESC_MAX]; |
cf311cd4 | 2458 | __be64 node_guid; |
96f15c03 | 2459 | u32 local_dma_lkey; |
4139032b | 2460 | u16 is_switch:1; |
1da177e4 LT |
2461 | u8 node_type; |
2462 | u8 phys_port_cnt; | |
3e153a93 | 2463 | struct ib_device_attr attrs; |
b40f4757 CL |
2464 | struct attribute_group *hw_stats_ag; |
2465 | struct rdma_hw_stats *hw_stats; | |
7738613e | 2466 | |
43579b5f PP |
2467 | #ifdef CONFIG_CGROUP_RDMA |
2468 | struct rdmacg_device cg_device; | |
2469 | #endif | |
2470 | ||
ecc82c53 | 2471 | u32 index; |
02d8883f LR |
2472 | /* |
2473 | * Implementation details of the RDMA core, don't use in drivers | |
2474 | */ | |
2475 | struct rdma_restrack_root res; | |
ecc82c53 | 2476 | |
7738613e IW |
2477 | /** |
2478 | * The following mandatory functions are used only at device | |
2479 | * registration. Keep functions such as these at the end of this | |
2480 | * structure to avoid cache line misses when accessing struct ib_device | |
2481 | * in fast paths. | |
2482 | */ | |
2483 | int (*get_port_immutable)(struct ib_device *, u8, struct ib_port_immutable *); | |
9abb0d1b | 2484 | void (*get_dev_fw_str)(struct ib_device *, char *str); |
c66cd353 SG |
2485 | const struct cpumask *(*get_vector_affinity)(struct ib_device *ibdev, |
2486 | int comp_vector); | |
fac9658c MB |
2487 | |
2488 | struct uverbs_root_spec *specs_root; | |
0ede73bc | 2489 | enum rdma_driver_id driver_id; |
1da177e4 LT |
2490 | }; |
2491 | ||
2492 | struct ib_client { | |
2493 | char *name; | |
2494 | void (*add) (struct ib_device *); | |
7c1eb45a | 2495 | void (*remove)(struct ib_device *, void *client_data); |
1da177e4 | 2496 | |
9268f72d YK |
2497 | /* Returns the net_dev belonging to this ib_client and matching the |
2498 | * given parameters. | |
2499 | * @dev: An RDMA device that the net_dev use for communication. | |
2500 | * @port: A physical port number on the RDMA device. | |
2501 | * @pkey: P_Key that the net_dev uses if applicable. | |
2502 | * @gid: A GID that the net_dev uses to communicate. | |
2503 | * @addr: An IP address the net_dev is configured with. | |
2504 | * @client_data: The device's client data set by ib_set_client_data(). | |
2505 | * | |
2506 | * An ib_client that implements a net_dev on top of RDMA devices | |
2507 | * (such as IP over IB) should implement this callback, allowing the | |
2508 | * rdma_cm module to find the right net_dev for a given request. | |
2509 | * | |
2510 | * The caller is responsible for calling dev_put on the returned | |
2511 | * netdev. */ | |
2512 | struct net_device *(*get_net_dev_by_params)( | |
2513 | struct ib_device *dev, | |
2514 | u8 port, | |
2515 | u16 pkey, | |
2516 | const union ib_gid *gid, | |
2517 | const struct sockaddr *addr, | |
2518 | void *client_data); | |
1da177e4 LT |
2519 | struct list_head list; |
2520 | }; | |
2521 | ||
2522 | struct ib_device *ib_alloc_device(size_t size); | |
2523 | void ib_dealloc_device(struct ib_device *device); | |
2524 | ||
9abb0d1b | 2525 | void ib_get_device_fw_str(struct ib_device *device, char *str); |
5fa76c20 | 2526 | |
9a6edb60 RC |
2527 | int ib_register_device(struct ib_device *device, |
2528 | int (*port_callback)(struct ib_device *, | |
2529 | u8, struct kobject *)); | |
1da177e4 LT |
2530 | void ib_unregister_device(struct ib_device *device); |
2531 | ||
2532 | int ib_register_client (struct ib_client *client); | |
2533 | void ib_unregister_client(struct ib_client *client); | |
2534 | ||
2535 | void *ib_get_client_data(struct ib_device *device, struct ib_client *client); | |
2536 | void ib_set_client_data(struct ib_device *device, struct ib_client *client, | |
2537 | void *data); | |
2538 | ||
e2773c06 RD |
2539 | static inline int ib_copy_from_udata(void *dest, struct ib_udata *udata, size_t len) |
2540 | { | |
2541 | return copy_from_user(dest, udata->inbuf, len) ? -EFAULT : 0; | |
2542 | } | |
2543 | ||
2544 | static inline int ib_copy_to_udata(struct ib_udata *udata, void *src, size_t len) | |
2545 | { | |
43c61165 | 2546 | return copy_to_user(udata->outbuf, src, len) ? -EFAULT : 0; |
e2773c06 RD |
2547 | } |
2548 | ||
c66db311 MB |
2549 | static inline bool ib_is_buffer_cleared(const void __user *p, |
2550 | size_t len) | |
301a721e | 2551 | { |
92d27ae6 | 2552 | bool ret; |
301a721e MB |
2553 | u8 *buf; |
2554 | ||
2555 | if (len > USHRT_MAX) | |
2556 | return false; | |
2557 | ||
92d27ae6 ME |
2558 | buf = memdup_user(p, len); |
2559 | if (IS_ERR(buf)) | |
301a721e MB |
2560 | return false; |
2561 | ||
301a721e | 2562 | ret = !memchr_inv(buf, 0, len); |
301a721e MB |
2563 | kfree(buf); |
2564 | return ret; | |
2565 | } | |
2566 | ||
c66db311 MB |
2567 | static inline bool ib_is_udata_cleared(struct ib_udata *udata, |
2568 | size_t offset, | |
2569 | size_t len) | |
2570 | { | |
2571 | return ib_is_buffer_cleared(udata->inbuf + offset, len); | |
2572 | } | |
2573 | ||
8a51866f RD |
2574 | /** |
2575 | * ib_modify_qp_is_ok - Check that the supplied attribute mask | |
2576 | * contains all required attributes and no attributes not allowed for | |
2577 | * the given QP state transition. | |
2578 | * @cur_state: Current QP state | |
2579 | * @next_state: Next QP state | |
2580 | * @type: QP type | |
2581 | * @mask: Mask of supplied QP attributes | |
dd5f03be | 2582 | * @ll : link layer of port |
8a51866f RD |
2583 | * |
2584 | * This function is a helper function that a low-level driver's | |
2585 | * modify_qp method can use to validate the consumer's input. It | |
2586 | * checks that cur_state and next_state are valid QP states, that a | |
2587 | * transition from cur_state to next_state is allowed by the IB spec, | |
2588 | * and that the attribute mask supplied is allowed for the transition. | |
2589 | */ | |
19b1f540 LR |
2590 | bool ib_modify_qp_is_ok(enum ib_qp_state cur_state, enum ib_qp_state next_state, |
2591 | enum ib_qp_type type, enum ib_qp_attr_mask mask, | |
2592 | enum rdma_link_layer ll); | |
8a51866f | 2593 | |
dcc9881e LR |
2594 | void ib_register_event_handler(struct ib_event_handler *event_handler); |
2595 | void ib_unregister_event_handler(struct ib_event_handler *event_handler); | |
1da177e4 LT |
2596 | void ib_dispatch_event(struct ib_event *event); |
2597 | ||
1da177e4 LT |
2598 | int ib_query_port(struct ib_device *device, |
2599 | u8 port_num, struct ib_port_attr *port_attr); | |
2600 | ||
a3f5adaf EC |
2601 | enum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device, |
2602 | u8 port_num); | |
2603 | ||
4139032b HR |
2604 | /** |
2605 | * rdma_cap_ib_switch - Check if the device is IB switch | |
2606 | * @device: Device to check | |
2607 | * | |
2608 | * Device driver is responsible for setting is_switch bit on | |
2609 | * in ib_device structure at init time. | |
2610 | * | |
2611 | * Return: true if the device is IB switch. | |
2612 | */ | |
2613 | static inline bool rdma_cap_ib_switch(const struct ib_device *device) | |
2614 | { | |
2615 | return device->is_switch; | |
2616 | } | |
2617 | ||
0cf18d77 IW |
2618 | /** |
2619 | * rdma_start_port - Return the first valid port number for the device | |
2620 | * specified | |
2621 | * | |
2622 | * @device: Device to be checked | |
2623 | * | |
2624 | * Return start port number | |
2625 | */ | |
2626 | static inline u8 rdma_start_port(const struct ib_device *device) | |
2627 | { | |
4139032b | 2628 | return rdma_cap_ib_switch(device) ? 0 : 1; |
0cf18d77 IW |
2629 | } |
2630 | ||
2631 | /** | |
2632 | * rdma_end_port - Return the last valid port number for the device | |
2633 | * specified | |
2634 | * | |
2635 | * @device: Device to be checked | |
2636 | * | |
2637 | * Return last port number | |
2638 | */ | |
2639 | static inline u8 rdma_end_port(const struct ib_device *device) | |
2640 | { | |
4139032b | 2641 | return rdma_cap_ib_switch(device) ? 0 : device->phys_port_cnt; |
0cf18d77 IW |
2642 | } |
2643 | ||
24dc831b YS |
2644 | static inline int rdma_is_port_valid(const struct ib_device *device, |
2645 | unsigned int port) | |
2646 | { | |
2647 | return (port >= rdma_start_port(device) && | |
2648 | port <= rdma_end_port(device)); | |
2649 | } | |
2650 | ||
5ede9289 | 2651 | static inline bool rdma_protocol_ib(const struct ib_device *device, u8 port_num) |
de66be94 | 2652 | { |
f9b22e35 | 2653 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_IB; |
de66be94 MW |
2654 | } |
2655 | ||
5ede9289 | 2656 | static inline bool rdma_protocol_roce(const struct ib_device *device, u8 port_num) |
7766a99f MB |
2657 | { |
2658 | return device->port_immutable[port_num].core_cap_flags & | |
2659 | (RDMA_CORE_CAP_PROT_ROCE | RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP); | |
2660 | } | |
2661 | ||
2662 | static inline bool rdma_protocol_roce_udp_encap(const struct ib_device *device, u8 port_num) | |
2663 | { | |
2664 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP; | |
2665 | } | |
2666 | ||
2667 | static inline bool rdma_protocol_roce_eth_encap(const struct ib_device *device, u8 port_num) | |
de66be94 | 2668 | { |
f9b22e35 | 2669 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_ROCE; |
de66be94 MW |
2670 | } |
2671 | ||
5ede9289 | 2672 | static inline bool rdma_protocol_iwarp(const struct ib_device *device, u8 port_num) |
de66be94 | 2673 | { |
f9b22e35 | 2674 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_IWARP; |
de66be94 MW |
2675 | } |
2676 | ||
5ede9289 | 2677 | static inline bool rdma_ib_or_roce(const struct ib_device *device, u8 port_num) |
de66be94 | 2678 | { |
7766a99f MB |
2679 | return rdma_protocol_ib(device, port_num) || |
2680 | rdma_protocol_roce(device, port_num); | |
de66be94 MW |
2681 | } |
2682 | ||
aa773bd4 OG |
2683 | static inline bool rdma_protocol_raw_packet(const struct ib_device *device, u8 port_num) |
2684 | { | |
2685 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_RAW_PACKET; | |
2686 | } | |
2687 | ||
ce1e055f OG |
2688 | static inline bool rdma_protocol_usnic(const struct ib_device *device, u8 port_num) |
2689 | { | |
2690 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_USNIC; | |
2691 | } | |
2692 | ||
c757dea8 | 2693 | /** |
296ec009 | 2694 | * rdma_cap_ib_mad - Check if the port of a device supports Infiniband |
c757dea8 | 2695 | * Management Datagrams. |
296ec009 MW |
2696 | * @device: Device to check |
2697 | * @port_num: Port number to check | |
c757dea8 | 2698 | * |
296ec009 MW |
2699 | * Management Datagrams (MAD) are a required part of the InfiniBand |
2700 | * specification and are supported on all InfiniBand devices. A slightly | |
2701 | * extended version are also supported on OPA interfaces. | |
c757dea8 | 2702 | * |
296ec009 | 2703 | * Return: true if the port supports sending/receiving of MAD packets. |
c757dea8 | 2704 | */ |
5ede9289 | 2705 | static inline bool rdma_cap_ib_mad(const struct ib_device *device, u8 port_num) |
c757dea8 | 2706 | { |
f9b22e35 | 2707 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IB_MAD; |
c757dea8 MW |
2708 | } |
2709 | ||
65995fee IW |
2710 | /** |
2711 | * rdma_cap_opa_mad - Check if the port of device provides support for OPA | |
2712 | * Management Datagrams. | |
2713 | * @device: Device to check | |
2714 | * @port_num: Port number to check | |
2715 | * | |
2716 | * Intel OmniPath devices extend and/or replace the InfiniBand Management | |
2717 | * datagrams with their own versions. These OPA MADs share many but not all of | |
2718 | * the characteristics of InfiniBand MADs. | |
2719 | * | |
2720 | * OPA MADs differ in the following ways: | |
2721 | * | |
2722 | * 1) MADs are variable size up to 2K | |
2723 | * IBTA defined MADs remain fixed at 256 bytes | |
2724 | * 2) OPA SMPs must carry valid PKeys | |
2725 | * 3) OPA SMP packets are a different format | |
2726 | * | |
2727 | * Return: true if the port supports OPA MAD packet formats. | |
2728 | */ | |
2729 | static inline bool rdma_cap_opa_mad(struct ib_device *device, u8 port_num) | |
2730 | { | |
2731 | return (device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_OPA_MAD) | |
2732 | == RDMA_CORE_CAP_OPA_MAD; | |
2733 | } | |
2734 | ||
29541e3a | 2735 | /** |
296ec009 MW |
2736 | * rdma_cap_ib_smi - Check if the port of a device provides an Infiniband |
2737 | * Subnet Management Agent (SMA) on the Subnet Management Interface (SMI). | |
2738 | * @device: Device to check | |
2739 | * @port_num: Port number to check | |
29541e3a | 2740 | * |
296ec009 MW |
2741 | * Each InfiniBand node is required to provide a Subnet Management Agent |
2742 | * that the subnet manager can access. Prior to the fabric being fully | |
2743 | * configured by the subnet manager, the SMA is accessed via a well known | |
2744 | * interface called the Subnet Management Interface (SMI). This interface | |
2745 | * uses directed route packets to communicate with the SM to get around the | |
2746 | * chicken and egg problem of the SM needing to know what's on the fabric | |
2747 | * in order to configure the fabric, and needing to configure the fabric in | |
2748 | * order to send packets to the devices on the fabric. These directed | |
2749 | * route packets do not need the fabric fully configured in order to reach | |
2750 | * their destination. The SMI is the only method allowed to send | |
2751 | * directed route packets on an InfiniBand fabric. | |
29541e3a | 2752 | * |
296ec009 | 2753 | * Return: true if the port provides an SMI. |
29541e3a | 2754 | */ |
5ede9289 | 2755 | static inline bool rdma_cap_ib_smi(const struct ib_device *device, u8 port_num) |
29541e3a | 2756 | { |
f9b22e35 | 2757 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IB_SMI; |
29541e3a MW |
2758 | } |
2759 | ||
72219cea MW |
2760 | /** |
2761 | * rdma_cap_ib_cm - Check if the port of device has the capability Infiniband | |
2762 | * Communication Manager. | |
296ec009 MW |
2763 | * @device: Device to check |
2764 | * @port_num: Port number to check | |
72219cea | 2765 | * |
296ec009 MW |
2766 | * The InfiniBand Communication Manager is one of many pre-defined General |
2767 | * Service Agents (GSA) that are accessed via the General Service | |
2768 | * Interface (GSI). It's role is to facilitate establishment of connections | |
2769 | * between nodes as well as other management related tasks for established | |
2770 | * connections. | |
72219cea | 2771 | * |
296ec009 MW |
2772 | * Return: true if the port supports an IB CM (this does not guarantee that |
2773 | * a CM is actually running however). | |
72219cea | 2774 | */ |
5ede9289 | 2775 | static inline bool rdma_cap_ib_cm(const struct ib_device *device, u8 port_num) |
72219cea | 2776 | { |
f9b22e35 | 2777 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IB_CM; |
72219cea MW |
2778 | } |
2779 | ||
04215330 MW |
2780 | /** |
2781 | * rdma_cap_iw_cm - Check if the port of device has the capability IWARP | |
2782 | * Communication Manager. | |
296ec009 MW |
2783 | * @device: Device to check |
2784 | * @port_num: Port number to check | |
04215330 | 2785 | * |
296ec009 MW |
2786 | * Similar to above, but specific to iWARP connections which have a different |
2787 | * managment protocol than InfiniBand. | |
04215330 | 2788 | * |
296ec009 MW |
2789 | * Return: true if the port supports an iWARP CM (this does not guarantee that |
2790 | * a CM is actually running however). | |
04215330 | 2791 | */ |
5ede9289 | 2792 | static inline bool rdma_cap_iw_cm(const struct ib_device *device, u8 port_num) |
04215330 | 2793 | { |
f9b22e35 | 2794 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IW_CM; |
04215330 MW |
2795 | } |
2796 | ||
fe53ba2f MW |
2797 | /** |
2798 | * rdma_cap_ib_sa - Check if the port of device has the capability Infiniband | |
2799 | * Subnet Administration. | |
296ec009 MW |
2800 | * @device: Device to check |
2801 | * @port_num: Port number to check | |
fe53ba2f | 2802 | * |
296ec009 MW |
2803 | * An InfiniBand Subnet Administration (SA) service is a pre-defined General |
2804 | * Service Agent (GSA) provided by the Subnet Manager (SM). On InfiniBand | |
2805 | * fabrics, devices should resolve routes to other hosts by contacting the | |
2806 | * SA to query the proper route. | |
fe53ba2f | 2807 | * |
296ec009 MW |
2808 | * Return: true if the port should act as a client to the fabric Subnet |
2809 | * Administration interface. This does not imply that the SA service is | |
2810 | * running locally. | |
fe53ba2f | 2811 | */ |
5ede9289 | 2812 | static inline bool rdma_cap_ib_sa(const struct ib_device *device, u8 port_num) |
fe53ba2f | 2813 | { |
f9b22e35 | 2814 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IB_SA; |
fe53ba2f MW |
2815 | } |
2816 | ||
a31ad3b0 MW |
2817 | /** |
2818 | * rdma_cap_ib_mcast - Check if the port of device has the capability Infiniband | |
2819 | * Multicast. | |
296ec009 MW |
2820 | * @device: Device to check |
2821 | * @port_num: Port number to check | |
a31ad3b0 | 2822 | * |
296ec009 MW |
2823 | * InfiniBand multicast registration is more complex than normal IPv4 or |
2824 | * IPv6 multicast registration. Each Host Channel Adapter must register | |
2825 | * with the Subnet Manager when it wishes to join a multicast group. It | |
2826 | * should do so only once regardless of how many queue pairs it subscribes | |
2827 | * to this group. And it should leave the group only after all queue pairs | |
2828 | * attached to the group have been detached. | |
a31ad3b0 | 2829 | * |
296ec009 MW |
2830 | * Return: true if the port must undertake the additional adminstrative |
2831 | * overhead of registering/unregistering with the SM and tracking of the | |
2832 | * total number of queue pairs attached to the multicast group. | |
a31ad3b0 | 2833 | */ |
5ede9289 | 2834 | static inline bool rdma_cap_ib_mcast(const struct ib_device *device, u8 port_num) |
a31ad3b0 MW |
2835 | { |
2836 | return rdma_cap_ib_sa(device, port_num); | |
2837 | } | |
2838 | ||
30a74ef4 MW |
2839 | /** |
2840 | * rdma_cap_af_ib - Check if the port of device has the capability | |
2841 | * Native Infiniband Address. | |
296ec009 MW |
2842 | * @device: Device to check |
2843 | * @port_num: Port number to check | |
30a74ef4 | 2844 | * |
296ec009 MW |
2845 | * InfiniBand addressing uses a port's GUID + Subnet Prefix to make a default |
2846 | * GID. RoCE uses a different mechanism, but still generates a GID via | |
2847 | * a prescribed mechanism and port specific data. | |
30a74ef4 | 2848 | * |
296ec009 MW |
2849 | * Return: true if the port uses a GID address to identify devices on the |
2850 | * network. | |
30a74ef4 | 2851 | */ |
5ede9289 | 2852 | static inline bool rdma_cap_af_ib(const struct ib_device *device, u8 port_num) |
30a74ef4 | 2853 | { |
f9b22e35 | 2854 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_AF_IB; |
30a74ef4 MW |
2855 | } |
2856 | ||
227128fc MW |
2857 | /** |
2858 | * rdma_cap_eth_ah - Check if the port of device has the capability | |
296ec009 MW |
2859 | * Ethernet Address Handle. |
2860 | * @device: Device to check | |
2861 | * @port_num: Port number to check | |
227128fc | 2862 | * |
296ec009 MW |
2863 | * RoCE is InfiniBand over Ethernet, and it uses a well defined technique |
2864 | * to fabricate GIDs over Ethernet/IP specific addresses native to the | |
2865 | * port. Normally, packet headers are generated by the sending host | |
2866 | * adapter, but when sending connectionless datagrams, we must manually | |
2867 | * inject the proper headers for the fabric we are communicating over. | |
227128fc | 2868 | * |
296ec009 MW |
2869 | * Return: true if we are running as a RoCE port and must force the |
2870 | * addition of a Global Route Header built from our Ethernet Address | |
2871 | * Handle into our header list for connectionless packets. | |
227128fc | 2872 | */ |
5ede9289 | 2873 | static inline bool rdma_cap_eth_ah(const struct ib_device *device, u8 port_num) |
227128fc | 2874 | { |
f9b22e35 | 2875 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_ETH_AH; |
227128fc MW |
2876 | } |
2877 | ||
94d595c5 DC |
2878 | /** |
2879 | * rdma_cap_opa_ah - Check if the port of device supports | |
2880 | * OPA Address handles | |
2881 | * @device: Device to check | |
2882 | * @port_num: Port number to check | |
2883 | * | |
2884 | * Return: true if we are running on an OPA device which supports | |
2885 | * the extended OPA addressing. | |
2886 | */ | |
2887 | static inline bool rdma_cap_opa_ah(struct ib_device *device, u8 port_num) | |
2888 | { | |
2889 | return (device->port_immutable[port_num].core_cap_flags & | |
2890 | RDMA_CORE_CAP_OPA_AH) == RDMA_CORE_CAP_OPA_AH; | |
2891 | } | |
2892 | ||
337877a4 IW |
2893 | /** |
2894 | * rdma_max_mad_size - Return the max MAD size required by this RDMA Port. | |
2895 | * | |
2896 | * @device: Device | |
2897 | * @port_num: Port number | |
2898 | * | |
2899 | * This MAD size includes the MAD headers and MAD payload. No other headers | |
2900 | * are included. | |
2901 | * | |
2902 | * Return the max MAD size required by the Port. Will return 0 if the port | |
2903 | * does not support MADs | |
2904 | */ | |
2905 | static inline size_t rdma_max_mad_size(const struct ib_device *device, u8 port_num) | |
2906 | { | |
2907 | return device->port_immutable[port_num].max_mad_size; | |
2908 | } | |
2909 | ||
03db3a2d MB |
2910 | /** |
2911 | * rdma_cap_roce_gid_table - Check if the port of device uses roce_gid_table | |
2912 | * @device: Device to check | |
2913 | * @port_num: Port number to check | |
2914 | * | |
2915 | * RoCE GID table mechanism manages the various GIDs for a device. | |
2916 | * | |
2917 | * NOTE: if allocating the port's GID table has failed, this call will still | |
2918 | * return true, but any RoCE GID table API will fail. | |
2919 | * | |
2920 | * Return: true if the port uses RoCE GID table mechanism in order to manage | |
2921 | * its GIDs. | |
2922 | */ | |
2923 | static inline bool rdma_cap_roce_gid_table(const struct ib_device *device, | |
2924 | u8 port_num) | |
2925 | { | |
2926 | return rdma_protocol_roce(device, port_num) && | |
2927 | device->add_gid && device->del_gid; | |
2928 | } | |
2929 | ||
002516ed CH |
2930 | /* |
2931 | * Check if the device supports READ W/ INVALIDATE. | |
2932 | */ | |
2933 | static inline bool rdma_cap_read_inv(struct ib_device *dev, u32 port_num) | |
2934 | { | |
2935 | /* | |
2936 | * iWarp drivers must support READ W/ INVALIDATE. No other protocol | |
2937 | * has support for it yet. | |
2938 | */ | |
2939 | return rdma_protocol_iwarp(dev, port_num); | |
2940 | } | |
2941 | ||
1da177e4 | 2942 | int ib_query_gid(struct ib_device *device, |
55ee3ab2 MB |
2943 | u8 port_num, int index, union ib_gid *gid, |
2944 | struct ib_gid_attr *attr); | |
1da177e4 | 2945 | |
50174a7f EC |
2946 | int ib_set_vf_link_state(struct ib_device *device, int vf, u8 port, |
2947 | int state); | |
2948 | int ib_get_vf_config(struct ib_device *device, int vf, u8 port, | |
2949 | struct ifla_vf_info *info); | |
2950 | int ib_get_vf_stats(struct ib_device *device, int vf, u8 port, | |
2951 | struct ifla_vf_stats *stats); | |
2952 | int ib_set_vf_guid(struct ib_device *device, int vf, u8 port, u64 guid, | |
2953 | int type); | |
2954 | ||
1da177e4 LT |
2955 | int ib_query_pkey(struct ib_device *device, |
2956 | u8 port_num, u16 index, u16 *pkey); | |
2957 | ||
2958 | int ib_modify_device(struct ib_device *device, | |
2959 | int device_modify_mask, | |
2960 | struct ib_device_modify *device_modify); | |
2961 | ||
2962 | int ib_modify_port(struct ib_device *device, | |
2963 | u8 port_num, int port_modify_mask, | |
2964 | struct ib_port_modify *port_modify); | |
2965 | ||
5eb620c8 | 2966 | int ib_find_gid(struct ib_device *device, union ib_gid *gid, |
b26c4a11 | 2967 | u8 *port_num, u16 *index); |
5eb620c8 YE |
2968 | |
2969 | int ib_find_pkey(struct ib_device *device, | |
2970 | u8 port_num, u16 pkey, u16 *index); | |
2971 | ||
ed082d36 CH |
2972 | enum ib_pd_flags { |
2973 | /* | |
2974 | * Create a memory registration for all memory in the system and place | |
2975 | * the rkey for it into pd->unsafe_global_rkey. This can be used by | |
2976 | * ULPs to avoid the overhead of dynamic MRs. | |
2977 | * | |
2978 | * This flag is generally considered unsafe and must only be used in | |
2979 | * extremly trusted environments. Every use of it will log a warning | |
2980 | * in the kernel log. | |
2981 | */ | |
2982 | IB_PD_UNSAFE_GLOBAL_RKEY = 0x01, | |
2983 | }; | |
1da177e4 | 2984 | |
ed082d36 CH |
2985 | struct ib_pd *__ib_alloc_pd(struct ib_device *device, unsigned int flags, |
2986 | const char *caller); | |
2987 | #define ib_alloc_pd(device, flags) \ | |
e4496447 | 2988 | __ib_alloc_pd((device), (flags), KBUILD_MODNAME) |
7dd78647 | 2989 | void ib_dealloc_pd(struct ib_pd *pd); |
1da177e4 LT |
2990 | |
2991 | /** | |
0a18cfe4 | 2992 | * rdma_create_ah - Creates an address handle for the given address vector. |
1da177e4 LT |
2993 | * @pd: The protection domain associated with the address handle. |
2994 | * @ah_attr: The attributes of the address vector. | |
2995 | * | |
2996 | * The address handle is used to reference a local or global destination | |
2997 | * in all UD QP post sends. | |
2998 | */ | |
0a18cfe4 | 2999 | struct ib_ah *rdma_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr); |
1da177e4 | 3000 | |
5cda6587 PP |
3001 | /** |
3002 | * rdma_create_user_ah - Creates an address handle for the given address vector. | |
3003 | * It resolves destination mac address for ah attribute of RoCE type. | |
3004 | * @pd: The protection domain associated with the address handle. | |
3005 | * @ah_attr: The attributes of the address vector. | |
3006 | * @udata: pointer to user's input output buffer information need by | |
3007 | * provider driver. | |
3008 | * | |
3009 | * It returns 0 on success and returns appropriate error code on error. | |
3010 | * The address handle is used to reference a local or global destination | |
3011 | * in all UD QP post sends. | |
3012 | */ | |
3013 | struct ib_ah *rdma_create_user_ah(struct ib_pd *pd, | |
3014 | struct rdma_ah_attr *ah_attr, | |
3015 | struct ib_udata *udata); | |
850d8fd7 MS |
3016 | /** |
3017 | * ib_get_gids_from_rdma_hdr - Get sgid and dgid from GRH or IPv4 header | |
3018 | * work completion. | |
3019 | * @hdr: the L3 header to parse | |
3020 | * @net_type: type of header to parse | |
3021 | * @sgid: place to store source gid | |
3022 | * @dgid: place to store destination gid | |
3023 | */ | |
3024 | int ib_get_gids_from_rdma_hdr(const union rdma_network_hdr *hdr, | |
3025 | enum rdma_network_type net_type, | |
3026 | union ib_gid *sgid, union ib_gid *dgid); | |
3027 | ||
3028 | /** | |
3029 | * ib_get_rdma_header_version - Get the header version | |
3030 | * @hdr: the L3 header to parse | |
3031 | */ | |
3032 | int ib_get_rdma_header_version(const union rdma_network_hdr *hdr); | |
3033 | ||
4e00d694 | 3034 | /** |
f6bdb142 | 3035 | * ib_init_ah_attr_from_wc - Initializes address handle attributes from a |
4e00d694 SH |
3036 | * work completion. |
3037 | * @device: Device on which the received message arrived. | |
3038 | * @port_num: Port on which the received message arrived. | |
3039 | * @wc: Work completion associated with the received message. | |
3040 | * @grh: References the received global route header. This parameter is | |
3041 | * ignored unless the work completion indicates that the GRH is valid. | |
3042 | * @ah_attr: Returned attributes that can be used when creating an address | |
3043 | * handle for replying to the message. | |
3044 | */ | |
f6bdb142 PP |
3045 | int ib_init_ah_attr_from_wc(struct ib_device *device, u8 port_num, |
3046 | const struct ib_wc *wc, const struct ib_grh *grh, | |
3047 | struct rdma_ah_attr *ah_attr); | |
4e00d694 | 3048 | |
513789ed HR |
3049 | /** |
3050 | * ib_create_ah_from_wc - Creates an address handle associated with the | |
3051 | * sender of the specified work completion. | |
3052 | * @pd: The protection domain associated with the address handle. | |
3053 | * @wc: Work completion information associated with a received message. | |
3054 | * @grh: References the received global route header. This parameter is | |
3055 | * ignored unless the work completion indicates that the GRH is valid. | |
3056 | * @port_num: The outbound port number to associate with the address. | |
3057 | * | |
3058 | * The address handle is used to reference a local or global destination | |
3059 | * in all UD QP post sends. | |
3060 | */ | |
73cdaaee IW |
3061 | struct ib_ah *ib_create_ah_from_wc(struct ib_pd *pd, const struct ib_wc *wc, |
3062 | const struct ib_grh *grh, u8 port_num); | |
513789ed | 3063 | |
1da177e4 | 3064 | /** |
67b985b6 | 3065 | * rdma_modify_ah - Modifies the address vector associated with an address |
1da177e4 LT |
3066 | * handle. |
3067 | * @ah: The address handle to modify. | |
3068 | * @ah_attr: The new address vector attributes to associate with the | |
3069 | * address handle. | |
3070 | */ | |
67b985b6 | 3071 | int rdma_modify_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr); |
1da177e4 LT |
3072 | |
3073 | /** | |
bfbfd661 | 3074 | * rdma_query_ah - Queries the address vector associated with an address |
1da177e4 LT |
3075 | * handle. |
3076 | * @ah: The address handle to query. | |
3077 | * @ah_attr: The address vector attributes associated with the address | |
3078 | * handle. | |
3079 | */ | |
bfbfd661 | 3080 | int rdma_query_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr); |
1da177e4 LT |
3081 | |
3082 | /** | |
36523159 | 3083 | * rdma_destroy_ah - Destroys an address handle. |
1da177e4 LT |
3084 | * @ah: The address handle to destroy. |
3085 | */ | |
36523159 | 3086 | int rdma_destroy_ah(struct ib_ah *ah); |
1da177e4 | 3087 | |
d41fcc67 RD |
3088 | /** |
3089 | * ib_create_srq - Creates a SRQ associated with the specified protection | |
3090 | * domain. | |
3091 | * @pd: The protection domain associated with the SRQ. | |
abb6e9ba DB |
3092 | * @srq_init_attr: A list of initial attributes required to create the |
3093 | * SRQ. If SRQ creation succeeds, then the attributes are updated to | |
3094 | * the actual capabilities of the created SRQ. | |
d41fcc67 RD |
3095 | * |
3096 | * srq_attr->max_wr and srq_attr->max_sge are read the determine the | |
3097 | * requested size of the SRQ, and set to the actual values allocated | |
3098 | * on return. If ib_create_srq() succeeds, then max_wr and max_sge | |
3099 | * will always be at least as large as the requested values. | |
3100 | */ | |
3101 | struct ib_srq *ib_create_srq(struct ib_pd *pd, | |
3102 | struct ib_srq_init_attr *srq_init_attr); | |
3103 | ||
3104 | /** | |
3105 | * ib_modify_srq - Modifies the attributes for the specified SRQ. | |
3106 | * @srq: The SRQ to modify. | |
3107 | * @srq_attr: On input, specifies the SRQ attributes to modify. On output, | |
3108 | * the current values of selected SRQ attributes are returned. | |
3109 | * @srq_attr_mask: A bit-mask used to specify which attributes of the SRQ | |
3110 | * are being modified. | |
3111 | * | |
3112 | * The mask may contain IB_SRQ_MAX_WR to resize the SRQ and/or | |
3113 | * IB_SRQ_LIMIT to set the SRQ's limit and request notification when | |
3114 | * the number of receives queued drops below the limit. | |
3115 | */ | |
3116 | int ib_modify_srq(struct ib_srq *srq, | |
3117 | struct ib_srq_attr *srq_attr, | |
3118 | enum ib_srq_attr_mask srq_attr_mask); | |
3119 | ||
3120 | /** | |
3121 | * ib_query_srq - Returns the attribute list and current values for the | |
3122 | * specified SRQ. | |
3123 | * @srq: The SRQ to query. | |
3124 | * @srq_attr: The attributes of the specified SRQ. | |
3125 | */ | |
3126 | int ib_query_srq(struct ib_srq *srq, | |
3127 | struct ib_srq_attr *srq_attr); | |
3128 | ||
3129 | /** | |
3130 | * ib_destroy_srq - Destroys the specified SRQ. | |
3131 | * @srq: The SRQ to destroy. | |
3132 | */ | |
3133 | int ib_destroy_srq(struct ib_srq *srq); | |
3134 | ||
3135 | /** | |
3136 | * ib_post_srq_recv - Posts a list of work requests to the specified SRQ. | |
3137 | * @srq: The SRQ to post the work request on. | |
3138 | * @recv_wr: A list of work requests to post on the receive queue. | |
3139 | * @bad_recv_wr: On an immediate failure, this parameter will reference | |
3140 | * the work request that failed to be posted on the QP. | |
3141 | */ | |
3142 | static inline int ib_post_srq_recv(struct ib_srq *srq, | |
3143 | struct ib_recv_wr *recv_wr, | |
3144 | struct ib_recv_wr **bad_recv_wr) | |
3145 | { | |
3146 | return srq->device->post_srq_recv(srq, recv_wr, bad_recv_wr); | |
3147 | } | |
3148 | ||
1da177e4 LT |
3149 | /** |
3150 | * ib_create_qp - Creates a QP associated with the specified protection | |
3151 | * domain. | |
3152 | * @pd: The protection domain associated with the QP. | |
abb6e9ba DB |
3153 | * @qp_init_attr: A list of initial attributes required to create the |
3154 | * QP. If QP creation succeeds, then the attributes are updated to | |
3155 | * the actual capabilities of the created QP. | |
1da177e4 LT |
3156 | */ |
3157 | struct ib_qp *ib_create_qp(struct ib_pd *pd, | |
3158 | struct ib_qp_init_attr *qp_init_attr); | |
3159 | ||
a512c2fb PP |
3160 | /** |
3161 | * ib_modify_qp_with_udata - Modifies the attributes for the specified QP. | |
3162 | * @qp: The QP to modify. | |
3163 | * @attr: On input, specifies the QP attributes to modify. On output, | |
3164 | * the current values of selected QP attributes are returned. | |
3165 | * @attr_mask: A bit-mask used to specify which attributes of the QP | |
3166 | * are being modified. | |
3167 | * @udata: pointer to user's input output buffer information | |
3168 | * are being modified. | |
3169 | * It returns 0 on success and returns appropriate error code on error. | |
3170 | */ | |
3171 | int ib_modify_qp_with_udata(struct ib_qp *qp, | |
3172 | struct ib_qp_attr *attr, | |
3173 | int attr_mask, | |
3174 | struct ib_udata *udata); | |
3175 | ||
1da177e4 LT |
3176 | /** |
3177 | * ib_modify_qp - Modifies the attributes for the specified QP and then | |
3178 | * transitions the QP to the given state. | |
3179 | * @qp: The QP to modify. | |
3180 | * @qp_attr: On input, specifies the QP attributes to modify. On output, | |
3181 | * the current values of selected QP attributes are returned. | |
3182 | * @qp_attr_mask: A bit-mask used to specify which attributes of the QP | |
3183 | * are being modified. | |
3184 | */ | |
3185 | int ib_modify_qp(struct ib_qp *qp, | |
3186 | struct ib_qp_attr *qp_attr, | |
3187 | int qp_attr_mask); | |
3188 | ||
3189 | /** | |
3190 | * ib_query_qp - Returns the attribute list and current values for the | |
3191 | * specified QP. | |
3192 | * @qp: The QP to query. | |
3193 | * @qp_attr: The attributes of the specified QP. | |
3194 | * @qp_attr_mask: A bit-mask used to select specific attributes to query. | |
3195 | * @qp_init_attr: Additional attributes of the selected QP. | |
3196 | * | |
3197 | * The qp_attr_mask may be used to limit the query to gathering only the | |
3198 | * selected attributes. | |
3199 | */ | |
3200 | int ib_query_qp(struct ib_qp *qp, | |
3201 | struct ib_qp_attr *qp_attr, | |
3202 | int qp_attr_mask, | |
3203 | struct ib_qp_init_attr *qp_init_attr); | |
3204 | ||
3205 | /** | |
3206 | * ib_destroy_qp - Destroys the specified QP. | |
3207 | * @qp: The QP to destroy. | |
3208 | */ | |
3209 | int ib_destroy_qp(struct ib_qp *qp); | |
3210 | ||
d3d72d90 | 3211 | /** |
0e0ec7e0 SH |
3212 | * ib_open_qp - Obtain a reference to an existing sharable QP. |
3213 | * @xrcd - XRC domain | |
3214 | * @qp_open_attr: Attributes identifying the QP to open. | |
3215 | * | |
3216 | * Returns a reference to a sharable QP. | |
3217 | */ | |
3218 | struct ib_qp *ib_open_qp(struct ib_xrcd *xrcd, | |
3219 | struct ib_qp_open_attr *qp_open_attr); | |
3220 | ||
3221 | /** | |
3222 | * ib_close_qp - Release an external reference to a QP. | |
d3d72d90 SH |
3223 | * @qp: The QP handle to release |
3224 | * | |
0e0ec7e0 SH |
3225 | * The opened QP handle is released by the caller. The underlying |
3226 | * shared QP is not destroyed until all internal references are released. | |
d3d72d90 | 3227 | */ |
0e0ec7e0 | 3228 | int ib_close_qp(struct ib_qp *qp); |
d3d72d90 | 3229 | |
1da177e4 LT |
3230 | /** |
3231 | * ib_post_send - Posts a list of work requests to the send queue of | |
3232 | * the specified QP. | |
3233 | * @qp: The QP to post the work request on. | |
3234 | * @send_wr: A list of work requests to post on the send queue. | |
3235 | * @bad_send_wr: On an immediate failure, this parameter will reference | |
3236 | * the work request that failed to be posted on the QP. | |
55464d46 BVA |
3237 | * |
3238 | * While IBA Vol. 1 section 11.4.1.1 specifies that if an immediate | |
3239 | * error is returned, the QP state shall not be affected, | |
3240 | * ib_post_send() will return an immediate error after queueing any | |
3241 | * earlier work requests in the list. | |
1da177e4 LT |
3242 | */ |
3243 | static inline int ib_post_send(struct ib_qp *qp, | |
3244 | struct ib_send_wr *send_wr, | |
3245 | struct ib_send_wr **bad_send_wr) | |
3246 | { | |
3247 | return qp->device->post_send(qp, send_wr, bad_send_wr); | |
3248 | } | |
3249 | ||
3250 | /** | |
3251 | * ib_post_recv - Posts a list of work requests to the receive queue of | |
3252 | * the specified QP. | |
3253 | * @qp: The QP to post the work request on. | |
3254 | * @recv_wr: A list of work requests to post on the receive queue. | |
3255 | * @bad_recv_wr: On an immediate failure, this parameter will reference | |
3256 | * the work request that failed to be posted on the QP. | |
3257 | */ | |
3258 | static inline int ib_post_recv(struct ib_qp *qp, | |
3259 | struct ib_recv_wr *recv_wr, | |
3260 | struct ib_recv_wr **bad_recv_wr) | |
3261 | { | |
3262 | return qp->device->post_recv(qp, recv_wr, bad_recv_wr); | |
3263 | } | |
3264 | ||
f66c8ba4 LR |
3265 | struct ib_cq *__ib_alloc_cq(struct ib_device *dev, void *private, |
3266 | int nr_cqe, int comp_vector, | |
3267 | enum ib_poll_context poll_ctx, const char *caller); | |
3268 | #define ib_alloc_cq(device, priv, nr_cqe, comp_vect, poll_ctx) \ | |
3269 | __ib_alloc_cq((device), (priv), (nr_cqe), (comp_vect), (poll_ctx), KBUILD_MODNAME) | |
3270 | ||
14d3a3b2 CH |
3271 | void ib_free_cq(struct ib_cq *cq); |
3272 | int ib_process_cq_direct(struct ib_cq *cq, int budget); | |
3273 | ||
1da177e4 LT |
3274 | /** |
3275 | * ib_create_cq - Creates a CQ on the specified device. | |
3276 | * @device: The device on which to create the CQ. | |
3277 | * @comp_handler: A user-specified callback that is invoked when a | |
3278 | * completion event occurs on the CQ. | |
3279 | * @event_handler: A user-specified callback that is invoked when an | |
3280 | * asynchronous event not associated with a completion occurs on the CQ. | |
3281 | * @cq_context: Context associated with the CQ returned to the user via | |
3282 | * the associated completion and event handlers. | |
8e37210b | 3283 | * @cq_attr: The attributes the CQ should be created upon. |
1da177e4 LT |
3284 | * |
3285 | * Users can examine the cq structure to determine the actual CQ size. | |
3286 | */ | |
3287 | struct ib_cq *ib_create_cq(struct ib_device *device, | |
3288 | ib_comp_handler comp_handler, | |
3289 | void (*event_handler)(struct ib_event *, void *), | |
8e37210b MB |
3290 | void *cq_context, |
3291 | const struct ib_cq_init_attr *cq_attr); | |
1da177e4 LT |
3292 | |
3293 | /** | |
3294 | * ib_resize_cq - Modifies the capacity of the CQ. | |
3295 | * @cq: The CQ to resize. | |
3296 | * @cqe: The minimum size of the CQ. | |
3297 | * | |
3298 | * Users can examine the cq structure to determine the actual CQ size. | |
3299 | */ | |
3300 | int ib_resize_cq(struct ib_cq *cq, int cqe); | |
3301 | ||
2dd57162 | 3302 | /** |
4190b4e9 | 3303 | * rdma_set_cq_moderation - Modifies moderation params of the CQ |
2dd57162 EC |
3304 | * @cq: The CQ to modify. |
3305 | * @cq_count: number of CQEs that will trigger an event | |
3306 | * @cq_period: max period of time in usec before triggering an event | |
3307 | * | |
3308 | */ | |
4190b4e9 | 3309 | int rdma_set_cq_moderation(struct ib_cq *cq, u16 cq_count, u16 cq_period); |
2dd57162 | 3310 | |
1da177e4 LT |
3311 | /** |
3312 | * ib_destroy_cq - Destroys the specified CQ. | |
3313 | * @cq: The CQ to destroy. | |
3314 | */ | |
3315 | int ib_destroy_cq(struct ib_cq *cq); | |
3316 | ||
3317 | /** | |
3318 | * ib_poll_cq - poll a CQ for completion(s) | |
3319 | * @cq:the CQ being polled | |
3320 | * @num_entries:maximum number of completions to return | |
3321 | * @wc:array of at least @num_entries &struct ib_wc where completions | |
3322 | * will be returned | |
3323 | * | |
3324 | * Poll a CQ for (possibly multiple) completions. If the return value | |
3325 | * is < 0, an error occurred. If the return value is >= 0, it is the | |
3326 | * number of completions returned. If the return value is | |
3327 | * non-negative and < num_entries, then the CQ was emptied. | |
3328 | */ | |
3329 | static inline int ib_poll_cq(struct ib_cq *cq, int num_entries, | |
3330 | struct ib_wc *wc) | |
3331 | { | |
3332 | return cq->device->poll_cq(cq, num_entries, wc); | |
3333 | } | |
3334 | ||
1da177e4 LT |
3335 | /** |
3336 | * ib_req_notify_cq - Request completion notification on a CQ. | |
3337 | * @cq: The CQ to generate an event for. | |
ed23a727 RD |
3338 | * @flags: |
3339 | * Must contain exactly one of %IB_CQ_SOLICITED or %IB_CQ_NEXT_COMP | |
3340 | * to request an event on the next solicited event or next work | |
3341 | * completion at any type, respectively. %IB_CQ_REPORT_MISSED_EVENTS | |
3342 | * may also be |ed in to request a hint about missed events, as | |
3343 | * described below. | |
3344 | * | |
3345 | * Return Value: | |
3346 | * < 0 means an error occurred while requesting notification | |
3347 | * == 0 means notification was requested successfully, and if | |
3348 | * IB_CQ_REPORT_MISSED_EVENTS was passed in, then no events | |
3349 | * were missed and it is safe to wait for another event. In | |
3350 | * this case is it guaranteed that any work completions added | |
3351 | * to the CQ since the last CQ poll will trigger a completion | |
3352 | * notification event. | |
3353 | * > 0 is only returned if IB_CQ_REPORT_MISSED_EVENTS was passed | |
3354 | * in. It means that the consumer must poll the CQ again to | |
3355 | * make sure it is empty to avoid missing an event because of a | |
3356 | * race between requesting notification and an entry being | |
3357 | * added to the CQ. This return value means it is possible | |
3358 | * (but not guaranteed) that a work completion has been added | |
3359 | * to the CQ since the last poll without triggering a | |
3360 | * completion notification event. | |
1da177e4 LT |
3361 | */ |
3362 | static inline int ib_req_notify_cq(struct ib_cq *cq, | |
ed23a727 | 3363 | enum ib_cq_notify_flags flags) |
1da177e4 | 3364 | { |
ed23a727 | 3365 | return cq->device->req_notify_cq(cq, flags); |
1da177e4 LT |
3366 | } |
3367 | ||
3368 | /** | |
3369 | * ib_req_ncomp_notif - Request completion notification when there are | |
3370 | * at least the specified number of unreaped completions on the CQ. | |
3371 | * @cq: The CQ to generate an event for. | |
3372 | * @wc_cnt: The number of unreaped completions that should be on the | |
3373 | * CQ before an event is generated. | |
3374 | */ | |
3375 | static inline int ib_req_ncomp_notif(struct ib_cq *cq, int wc_cnt) | |
3376 | { | |
3377 | return cq->device->req_ncomp_notif ? | |
3378 | cq->device->req_ncomp_notif(cq, wc_cnt) : | |
3379 | -ENOSYS; | |
3380 | } | |
3381 | ||
9b513090 RC |
3382 | /** |
3383 | * ib_dma_mapping_error - check a DMA addr for error | |
3384 | * @dev: The device for which the dma_addr was created | |
3385 | * @dma_addr: The DMA address to check | |
3386 | */ | |
3387 | static inline int ib_dma_mapping_error(struct ib_device *dev, u64 dma_addr) | |
3388 | { | |
0957c29f | 3389 | return dma_mapping_error(dev->dma_device, dma_addr); |
9b513090 RC |
3390 | } |
3391 | ||
3392 | /** | |
3393 | * ib_dma_map_single - Map a kernel virtual address to DMA address | |
3394 | * @dev: The device for which the dma_addr is to be created | |
3395 | * @cpu_addr: The kernel virtual address | |
3396 | * @size: The size of the region in bytes | |
3397 | * @direction: The direction of the DMA | |
3398 | */ | |
3399 | static inline u64 ib_dma_map_single(struct ib_device *dev, | |
3400 | void *cpu_addr, size_t size, | |
3401 | enum dma_data_direction direction) | |
3402 | { | |
0957c29f | 3403 | return dma_map_single(dev->dma_device, cpu_addr, size, direction); |
9b513090 RC |
3404 | } |
3405 | ||
3406 | /** | |
3407 | * ib_dma_unmap_single - Destroy a mapping created by ib_dma_map_single() | |
3408 | * @dev: The device for which the DMA address was created | |
3409 | * @addr: The DMA address | |
3410 | * @size: The size of the region in bytes | |
3411 | * @direction: The direction of the DMA | |
3412 | */ | |
3413 | static inline void ib_dma_unmap_single(struct ib_device *dev, | |
3414 | u64 addr, size_t size, | |
3415 | enum dma_data_direction direction) | |
3416 | { | |
0957c29f | 3417 | dma_unmap_single(dev->dma_device, addr, size, direction); |
cb9fbc5c AK |
3418 | } |
3419 | ||
9b513090 RC |
3420 | /** |
3421 | * ib_dma_map_page - Map a physical page to DMA address | |
3422 | * @dev: The device for which the dma_addr is to be created | |
3423 | * @page: The page to be mapped | |
3424 | * @offset: The offset within the page | |
3425 | * @size: The size of the region in bytes | |
3426 | * @direction: The direction of the DMA | |
3427 | */ | |
3428 | static inline u64 ib_dma_map_page(struct ib_device *dev, | |
3429 | struct page *page, | |
3430 | unsigned long offset, | |
3431 | size_t size, | |
3432 | enum dma_data_direction direction) | |
3433 | { | |
0957c29f | 3434 | return dma_map_page(dev->dma_device, page, offset, size, direction); |
9b513090 RC |
3435 | } |
3436 | ||
3437 | /** | |
3438 | * ib_dma_unmap_page - Destroy a mapping created by ib_dma_map_page() | |
3439 | * @dev: The device for which the DMA address was created | |
3440 | * @addr: The DMA address | |
3441 | * @size: The size of the region in bytes | |
3442 | * @direction: The direction of the DMA | |
3443 | */ | |
3444 | static inline void ib_dma_unmap_page(struct ib_device *dev, | |
3445 | u64 addr, size_t size, | |
3446 | enum dma_data_direction direction) | |
3447 | { | |
0957c29f | 3448 | dma_unmap_page(dev->dma_device, addr, size, direction); |
9b513090 RC |
3449 | } |
3450 | ||
3451 | /** | |
3452 | * ib_dma_map_sg - Map a scatter/gather list to DMA addresses | |
3453 | * @dev: The device for which the DMA addresses are to be created | |
3454 | * @sg: The array of scatter/gather entries | |
3455 | * @nents: The number of scatter/gather entries | |
3456 | * @direction: The direction of the DMA | |
3457 | */ | |
3458 | static inline int ib_dma_map_sg(struct ib_device *dev, | |
3459 | struct scatterlist *sg, int nents, | |
3460 | enum dma_data_direction direction) | |
3461 | { | |
0957c29f | 3462 | return dma_map_sg(dev->dma_device, sg, nents, direction); |
9b513090 RC |
3463 | } |
3464 | ||
3465 | /** | |
3466 | * ib_dma_unmap_sg - Unmap a scatter/gather list of DMA addresses | |
3467 | * @dev: The device for which the DMA addresses were created | |
3468 | * @sg: The array of scatter/gather entries | |
3469 | * @nents: The number of scatter/gather entries | |
3470 | * @direction: The direction of the DMA | |
3471 | */ | |
3472 | static inline void ib_dma_unmap_sg(struct ib_device *dev, | |
3473 | struct scatterlist *sg, int nents, | |
3474 | enum dma_data_direction direction) | |
3475 | { | |
0957c29f | 3476 | dma_unmap_sg(dev->dma_device, sg, nents, direction); |
9b513090 RC |
3477 | } |
3478 | ||
cb9fbc5c AK |
3479 | static inline int ib_dma_map_sg_attrs(struct ib_device *dev, |
3480 | struct scatterlist *sg, int nents, | |
3481 | enum dma_data_direction direction, | |
00085f1e | 3482 | unsigned long dma_attrs) |
cb9fbc5c | 3483 | { |
0957c29f BVA |
3484 | return dma_map_sg_attrs(dev->dma_device, sg, nents, direction, |
3485 | dma_attrs); | |
cb9fbc5c AK |
3486 | } |
3487 | ||
3488 | static inline void ib_dma_unmap_sg_attrs(struct ib_device *dev, | |
3489 | struct scatterlist *sg, int nents, | |
3490 | enum dma_data_direction direction, | |
00085f1e | 3491 | unsigned long dma_attrs) |
cb9fbc5c | 3492 | { |
0957c29f | 3493 | dma_unmap_sg_attrs(dev->dma_device, sg, nents, direction, dma_attrs); |
cb9fbc5c | 3494 | } |
9b513090 RC |
3495 | /** |
3496 | * ib_sg_dma_address - Return the DMA address from a scatter/gather entry | |
3497 | * @dev: The device for which the DMA addresses were created | |
3498 | * @sg: The scatter/gather entry | |
ea58a595 MM |
3499 | * |
3500 | * Note: this function is obsolete. To do: change all occurrences of | |
3501 | * ib_sg_dma_address() into sg_dma_address(). | |
9b513090 RC |
3502 | */ |
3503 | static inline u64 ib_sg_dma_address(struct ib_device *dev, | |
3504 | struct scatterlist *sg) | |
3505 | { | |
d1998ef3 | 3506 | return sg_dma_address(sg); |
9b513090 RC |
3507 | } |
3508 | ||
3509 | /** | |
3510 | * ib_sg_dma_len - Return the DMA length from a scatter/gather entry | |
3511 | * @dev: The device for which the DMA addresses were created | |
3512 | * @sg: The scatter/gather entry | |
ea58a595 MM |
3513 | * |
3514 | * Note: this function is obsolete. To do: change all occurrences of | |
3515 | * ib_sg_dma_len() into sg_dma_len(). | |
9b513090 RC |
3516 | */ |
3517 | static inline unsigned int ib_sg_dma_len(struct ib_device *dev, | |
3518 | struct scatterlist *sg) | |
3519 | { | |
d1998ef3 | 3520 | return sg_dma_len(sg); |
9b513090 RC |
3521 | } |
3522 | ||
3523 | /** | |
3524 | * ib_dma_sync_single_for_cpu - Prepare DMA region to be accessed by CPU | |
3525 | * @dev: The device for which the DMA address was created | |
3526 | * @addr: The DMA address | |
3527 | * @size: The size of the region in bytes | |
3528 | * @dir: The direction of the DMA | |
3529 | */ | |
3530 | static inline void ib_dma_sync_single_for_cpu(struct ib_device *dev, | |
3531 | u64 addr, | |
3532 | size_t size, | |
3533 | enum dma_data_direction dir) | |
3534 | { | |
0957c29f | 3535 | dma_sync_single_for_cpu(dev->dma_device, addr, size, dir); |
9b513090 RC |
3536 | } |
3537 | ||
3538 | /** | |
3539 | * ib_dma_sync_single_for_device - Prepare DMA region to be accessed by device | |
3540 | * @dev: The device for which the DMA address was created | |
3541 | * @addr: The DMA address | |
3542 | * @size: The size of the region in bytes | |
3543 | * @dir: The direction of the DMA | |
3544 | */ | |
3545 | static inline void ib_dma_sync_single_for_device(struct ib_device *dev, | |
3546 | u64 addr, | |
3547 | size_t size, | |
3548 | enum dma_data_direction dir) | |
3549 | { | |
0957c29f | 3550 | dma_sync_single_for_device(dev->dma_device, addr, size, dir); |
9b513090 RC |
3551 | } |
3552 | ||
3553 | /** | |
3554 | * ib_dma_alloc_coherent - Allocate memory and map it for DMA | |
3555 | * @dev: The device for which the DMA address is requested | |
3556 | * @size: The size of the region to allocate in bytes | |
3557 | * @dma_handle: A pointer for returning the DMA address of the region | |
3558 | * @flag: memory allocator flags | |
3559 | */ | |
3560 | static inline void *ib_dma_alloc_coherent(struct ib_device *dev, | |
3561 | size_t size, | |
d43dbacf | 3562 | dma_addr_t *dma_handle, |
9b513090 RC |
3563 | gfp_t flag) |
3564 | { | |
0957c29f | 3565 | return dma_alloc_coherent(dev->dma_device, size, dma_handle, flag); |
9b513090 RC |
3566 | } |
3567 | ||
3568 | /** | |
3569 | * ib_dma_free_coherent - Free memory allocated by ib_dma_alloc_coherent() | |
3570 | * @dev: The device for which the DMA addresses were allocated | |
3571 | * @size: The size of the region | |
3572 | * @cpu_addr: the address returned by ib_dma_alloc_coherent() | |
3573 | * @dma_handle: the DMA address returned by ib_dma_alloc_coherent() | |
3574 | */ | |
3575 | static inline void ib_dma_free_coherent(struct ib_device *dev, | |
3576 | size_t size, void *cpu_addr, | |
d43dbacf | 3577 | dma_addr_t dma_handle) |
9b513090 | 3578 | { |
0957c29f | 3579 | dma_free_coherent(dev->dma_device, size, cpu_addr, dma_handle); |
9b513090 RC |
3580 | } |
3581 | ||
1da177e4 LT |
3582 | /** |
3583 | * ib_dereg_mr - Deregisters a memory region and removes it from the | |
3584 | * HCA translation table. | |
3585 | * @mr: The memory region to deregister. | |
7083e42e SM |
3586 | * |
3587 | * This function can fail, if the memory region has memory windows bound to it. | |
1da177e4 LT |
3588 | */ |
3589 | int ib_dereg_mr(struct ib_mr *mr); | |
3590 | ||
9bee178b SG |
3591 | struct ib_mr *ib_alloc_mr(struct ib_pd *pd, |
3592 | enum ib_mr_type mr_type, | |
3593 | u32 max_num_sg); | |
00f7ec36 | 3594 | |
00f7ec36 SW |
3595 | /** |
3596 | * ib_update_fast_reg_key - updates the key portion of the fast_reg MR | |
3597 | * R_Key and L_Key. | |
3598 | * @mr - struct ib_mr pointer to be updated. | |
3599 | * @newkey - new key to be used. | |
3600 | */ | |
3601 | static inline void ib_update_fast_reg_key(struct ib_mr *mr, u8 newkey) | |
3602 | { | |
3603 | mr->lkey = (mr->lkey & 0xffffff00) | newkey; | |
3604 | mr->rkey = (mr->rkey & 0xffffff00) | newkey; | |
3605 | } | |
3606 | ||
7083e42e SM |
3607 | /** |
3608 | * ib_inc_rkey - increments the key portion of the given rkey. Can be used | |
3609 | * for calculating a new rkey for type 2 memory windows. | |
3610 | * @rkey - the rkey to increment. | |
3611 | */ | |
3612 | static inline u32 ib_inc_rkey(u32 rkey) | |
3613 | { | |
3614 | const u32 mask = 0x000000ff; | |
3615 | return ((rkey + 1) & mask) | (rkey & ~mask); | |
3616 | } | |
3617 | ||
1da177e4 LT |
3618 | /** |
3619 | * ib_alloc_fmr - Allocates a unmapped fast memory region. | |
3620 | * @pd: The protection domain associated with the unmapped region. | |
3621 | * @mr_access_flags: Specifies the memory access rights. | |
3622 | * @fmr_attr: Attributes of the unmapped region. | |
3623 | * | |
3624 | * A fast memory region must be mapped before it can be used as part of | |
3625 | * a work request. | |
3626 | */ | |
3627 | struct ib_fmr *ib_alloc_fmr(struct ib_pd *pd, | |
3628 | int mr_access_flags, | |
3629 | struct ib_fmr_attr *fmr_attr); | |
3630 | ||
3631 | /** | |
3632 | * ib_map_phys_fmr - Maps a list of physical pages to a fast memory region. | |
3633 | * @fmr: The fast memory region to associate with the pages. | |
3634 | * @page_list: An array of physical pages to map to the fast memory region. | |
3635 | * @list_len: The number of pages in page_list. | |
3636 | * @iova: The I/O virtual address to use with the mapped region. | |
3637 | */ | |
3638 | static inline int ib_map_phys_fmr(struct ib_fmr *fmr, | |
3639 | u64 *page_list, int list_len, | |
3640 | u64 iova) | |
3641 | { | |
3642 | return fmr->device->map_phys_fmr(fmr, page_list, list_len, iova); | |
3643 | } | |
3644 | ||
3645 | /** | |
3646 | * ib_unmap_fmr - Removes the mapping from a list of fast memory regions. | |
3647 | * @fmr_list: A linked list of fast memory regions to unmap. | |
3648 | */ | |
3649 | int ib_unmap_fmr(struct list_head *fmr_list); | |
3650 | ||
3651 | /** | |
3652 | * ib_dealloc_fmr - Deallocates a fast memory region. | |
3653 | * @fmr: The fast memory region to deallocate. | |
3654 | */ | |
3655 | int ib_dealloc_fmr(struct ib_fmr *fmr); | |
3656 | ||
3657 | /** | |
3658 | * ib_attach_mcast - Attaches the specified QP to a multicast group. | |
3659 | * @qp: QP to attach to the multicast group. The QP must be type | |
3660 | * IB_QPT_UD. | |
3661 | * @gid: Multicast group GID. | |
3662 | * @lid: Multicast group LID in host byte order. | |
3663 | * | |
3664 | * In order to send and receive multicast packets, subnet | |
3665 | * administration must have created the multicast group and configured | |
3666 | * the fabric appropriately. The port associated with the specified | |
3667 | * QP must also be a member of the multicast group. | |
3668 | */ | |
3669 | int ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid); | |
3670 | ||
3671 | /** | |
3672 | * ib_detach_mcast - Detaches the specified QP from a multicast group. | |
3673 | * @qp: QP to detach from the multicast group. | |
3674 | * @gid: Multicast group GID. | |
3675 | * @lid: Multicast group LID in host byte order. | |
3676 | */ | |
3677 | int ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid); | |
3678 | ||
59991f94 SH |
3679 | /** |
3680 | * ib_alloc_xrcd - Allocates an XRC domain. | |
3681 | * @device: The device on which to allocate the XRC domain. | |
f66c8ba4 | 3682 | * @caller: Module name for kernel consumers |
59991f94 | 3683 | */ |
f66c8ba4 LR |
3684 | struct ib_xrcd *__ib_alloc_xrcd(struct ib_device *device, const char *caller); |
3685 | #define ib_alloc_xrcd(device) \ | |
3686 | __ib_alloc_xrcd((device), KBUILD_MODNAME) | |
59991f94 SH |
3687 | |
3688 | /** | |
3689 | * ib_dealloc_xrcd - Deallocates an XRC domain. | |
3690 | * @xrcd: The XRC domain to deallocate. | |
3691 | */ | |
3692 | int ib_dealloc_xrcd(struct ib_xrcd *xrcd); | |
3693 | ||
319a441d HHZ |
3694 | struct ib_flow *ib_create_flow(struct ib_qp *qp, |
3695 | struct ib_flow_attr *flow_attr, int domain); | |
3696 | int ib_destroy_flow(struct ib_flow *flow_id); | |
3697 | ||
1c636f80 EC |
3698 | static inline int ib_check_mr_access(int flags) |
3699 | { | |
3700 | /* | |
3701 | * Local write permission is required if remote write or | |
3702 | * remote atomic permission is also requested. | |
3703 | */ | |
3704 | if (flags & (IB_ACCESS_REMOTE_ATOMIC | IB_ACCESS_REMOTE_WRITE) && | |
3705 | !(flags & IB_ACCESS_LOCAL_WRITE)) | |
3706 | return -EINVAL; | |
3707 | ||
3708 | return 0; | |
3709 | } | |
3710 | ||
1b01d335 SG |
3711 | /** |
3712 | * ib_check_mr_status: lightweight check of MR status. | |
3713 | * This routine may provide status checks on a selected | |
3714 | * ib_mr. first use is for signature status check. | |
3715 | * | |
3716 | * @mr: A memory region. | |
3717 | * @check_mask: Bitmask of which checks to perform from | |
3718 | * ib_mr_status_check enumeration. | |
3719 | * @mr_status: The container of relevant status checks. | |
3720 | * failed checks will be indicated in the status bitmask | |
3721 | * and the relevant info shall be in the error item. | |
3722 | */ | |
3723 | int ib_check_mr_status(struct ib_mr *mr, u32 check_mask, | |
3724 | struct ib_mr_status *mr_status); | |
3725 | ||
9268f72d YK |
3726 | struct net_device *ib_get_net_dev_by_params(struct ib_device *dev, u8 port, |
3727 | u16 pkey, const union ib_gid *gid, | |
3728 | const struct sockaddr *addr); | |
5fd251c8 YH |
3729 | struct ib_wq *ib_create_wq(struct ib_pd *pd, |
3730 | struct ib_wq_init_attr *init_attr); | |
3731 | int ib_destroy_wq(struct ib_wq *wq); | |
3732 | int ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *attr, | |
3733 | u32 wq_attr_mask); | |
6d39786b YH |
3734 | struct ib_rwq_ind_table *ib_create_rwq_ind_table(struct ib_device *device, |
3735 | struct ib_rwq_ind_table_init_attr* | |
3736 | wq_ind_table_init_attr); | |
3737 | int ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *wq_ind_table); | |
9268f72d | 3738 | |
ff2ba993 | 3739 | int ib_map_mr_sg(struct ib_mr *mr, struct scatterlist *sg, int sg_nents, |
9aa8b321 | 3740 | unsigned int *sg_offset, unsigned int page_size); |
4c67e2bf SG |
3741 | |
3742 | static inline int | |
ff2ba993 | 3743 | ib_map_mr_sg_zbva(struct ib_mr *mr, struct scatterlist *sg, int sg_nents, |
9aa8b321 | 3744 | unsigned int *sg_offset, unsigned int page_size) |
4c67e2bf SG |
3745 | { |
3746 | int n; | |
3747 | ||
ff2ba993 | 3748 | n = ib_map_mr_sg(mr, sg, sg_nents, sg_offset, page_size); |
4c67e2bf SG |
3749 | mr->iova = 0; |
3750 | ||
3751 | return n; | |
3752 | } | |
3753 | ||
ff2ba993 | 3754 | int ib_sg_to_pages(struct ib_mr *mr, struct scatterlist *sgl, int sg_nents, |
9aa8b321 | 3755 | unsigned int *sg_offset, int (*set_page)(struct ib_mr *, u64)); |
4c67e2bf | 3756 | |
765d6774 SW |
3757 | void ib_drain_rq(struct ib_qp *qp); |
3758 | void ib_drain_sq(struct ib_qp *qp); | |
3759 | void ib_drain_qp(struct ib_qp *qp); | |
850d8fd7 | 3760 | |
d4186194 | 3761 | int ib_get_eth_speed(struct ib_device *dev, u8 port_num, u8 *speed, u8 *width); |
2224c47a DC |
3762 | |
3763 | static inline u8 *rdma_ah_retrieve_dmac(struct rdma_ah_attr *attr) | |
3764 | { | |
44c58487 DC |
3765 | if (attr->type == RDMA_AH_ATTR_TYPE_ROCE) |
3766 | return attr->roce.dmac; | |
3767 | return NULL; | |
2224c47a DC |
3768 | } |
3769 | ||
64b4646e | 3770 | static inline void rdma_ah_set_dlid(struct rdma_ah_attr *attr, u32 dlid) |
2224c47a | 3771 | { |
44c58487 | 3772 | if (attr->type == RDMA_AH_ATTR_TYPE_IB) |
64b4646e DC |
3773 | attr->ib.dlid = (u16)dlid; |
3774 | else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) | |
3775 | attr->opa.dlid = dlid; | |
2224c47a DC |
3776 | } |
3777 | ||
64b4646e | 3778 | static inline u32 rdma_ah_get_dlid(const struct rdma_ah_attr *attr) |
2224c47a | 3779 | { |
44c58487 DC |
3780 | if (attr->type == RDMA_AH_ATTR_TYPE_IB) |
3781 | return attr->ib.dlid; | |
64b4646e DC |
3782 | else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) |
3783 | return attr->opa.dlid; | |
44c58487 | 3784 | return 0; |
2224c47a DC |
3785 | } |
3786 | ||
3787 | static inline void rdma_ah_set_sl(struct rdma_ah_attr *attr, u8 sl) | |
3788 | { | |
3789 | attr->sl = sl; | |
3790 | } | |
3791 | ||
3792 | static inline u8 rdma_ah_get_sl(const struct rdma_ah_attr *attr) | |
3793 | { | |
3794 | return attr->sl; | |
3795 | } | |
3796 | ||
3797 | static inline void rdma_ah_set_path_bits(struct rdma_ah_attr *attr, | |
3798 | u8 src_path_bits) | |
3799 | { | |
44c58487 DC |
3800 | if (attr->type == RDMA_AH_ATTR_TYPE_IB) |
3801 | attr->ib.src_path_bits = src_path_bits; | |
64b4646e DC |
3802 | else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) |
3803 | attr->opa.src_path_bits = src_path_bits; | |
2224c47a DC |
3804 | } |
3805 | ||
3806 | static inline u8 rdma_ah_get_path_bits(const struct rdma_ah_attr *attr) | |
3807 | { | |
44c58487 DC |
3808 | if (attr->type == RDMA_AH_ATTR_TYPE_IB) |
3809 | return attr->ib.src_path_bits; | |
64b4646e DC |
3810 | else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) |
3811 | return attr->opa.src_path_bits; | |
44c58487 | 3812 | return 0; |
2224c47a DC |
3813 | } |
3814 | ||
d98bb7f7 DH |
3815 | static inline void rdma_ah_set_make_grd(struct rdma_ah_attr *attr, |
3816 | bool make_grd) | |
3817 | { | |
3818 | if (attr->type == RDMA_AH_ATTR_TYPE_OPA) | |
3819 | attr->opa.make_grd = make_grd; | |
3820 | } | |
3821 | ||
3822 | static inline bool rdma_ah_get_make_grd(const struct rdma_ah_attr *attr) | |
3823 | { | |
3824 | if (attr->type == RDMA_AH_ATTR_TYPE_OPA) | |
3825 | return attr->opa.make_grd; | |
3826 | return false; | |
3827 | } | |
3828 | ||
2224c47a DC |
3829 | static inline void rdma_ah_set_port_num(struct rdma_ah_attr *attr, u8 port_num) |
3830 | { | |
3831 | attr->port_num = port_num; | |
3832 | } | |
3833 | ||
3834 | static inline u8 rdma_ah_get_port_num(const struct rdma_ah_attr *attr) | |
3835 | { | |
3836 | return attr->port_num; | |
3837 | } | |
3838 | ||
3839 | static inline void rdma_ah_set_static_rate(struct rdma_ah_attr *attr, | |
3840 | u8 static_rate) | |
3841 | { | |
3842 | attr->static_rate = static_rate; | |
3843 | } | |
3844 | ||
3845 | static inline u8 rdma_ah_get_static_rate(const struct rdma_ah_attr *attr) | |
3846 | { | |
3847 | return attr->static_rate; | |
3848 | } | |
3849 | ||
3850 | static inline void rdma_ah_set_ah_flags(struct rdma_ah_attr *attr, | |
3851 | enum ib_ah_flags flag) | |
3852 | { | |
3853 | attr->ah_flags = flag; | |
3854 | } | |
3855 | ||
3856 | static inline enum ib_ah_flags | |
3857 | rdma_ah_get_ah_flags(const struct rdma_ah_attr *attr) | |
3858 | { | |
3859 | return attr->ah_flags; | |
3860 | } | |
3861 | ||
3862 | static inline const struct ib_global_route | |
3863 | *rdma_ah_read_grh(const struct rdma_ah_attr *attr) | |
3864 | { | |
3865 | return &attr->grh; | |
3866 | } | |
3867 | ||
3868 | /*To retrieve and modify the grh */ | |
3869 | static inline struct ib_global_route | |
3870 | *rdma_ah_retrieve_grh(struct rdma_ah_attr *attr) | |
3871 | { | |
3872 | return &attr->grh; | |
3873 | } | |
3874 | ||
3875 | static inline void rdma_ah_set_dgid_raw(struct rdma_ah_attr *attr, void *dgid) | |
3876 | { | |
3877 | struct ib_global_route *grh = rdma_ah_retrieve_grh(attr); | |
3878 | ||
3879 | memcpy(grh->dgid.raw, dgid, sizeof(grh->dgid)); | |
3880 | } | |
3881 | ||
3882 | static inline void rdma_ah_set_subnet_prefix(struct rdma_ah_attr *attr, | |
3883 | __be64 prefix) | |
3884 | { | |
3885 | struct ib_global_route *grh = rdma_ah_retrieve_grh(attr); | |
3886 | ||
3887 | grh->dgid.global.subnet_prefix = prefix; | |
3888 | } | |
3889 | ||
3890 | static inline void rdma_ah_set_interface_id(struct rdma_ah_attr *attr, | |
3891 | __be64 if_id) | |
3892 | { | |
3893 | struct ib_global_route *grh = rdma_ah_retrieve_grh(attr); | |
3894 | ||
3895 | grh->dgid.global.interface_id = if_id; | |
3896 | } | |
3897 | ||
3898 | static inline void rdma_ah_set_grh(struct rdma_ah_attr *attr, | |
3899 | union ib_gid *dgid, u32 flow_label, | |
3900 | u8 sgid_index, u8 hop_limit, | |
3901 | u8 traffic_class) | |
3902 | { | |
3903 | struct ib_global_route *grh = rdma_ah_retrieve_grh(attr); | |
3904 | ||
3905 | attr->ah_flags = IB_AH_GRH; | |
3906 | if (dgid) | |
3907 | grh->dgid = *dgid; | |
3908 | grh->flow_label = flow_label; | |
3909 | grh->sgid_index = sgid_index; | |
3910 | grh->hop_limit = hop_limit; | |
3911 | grh->traffic_class = traffic_class; | |
3912 | } | |
44c58487 | 3913 | |
87daac68 DH |
3914 | /** |
3915 | * rdma_ah_find_type - Return address handle type. | |
3916 | * | |
3917 | * @dev: Device to be checked | |
3918 | * @port_num: Port number | |
3919 | */ | |
44c58487 | 3920 | static inline enum rdma_ah_attr_type rdma_ah_find_type(struct ib_device *dev, |
87daac68 | 3921 | u8 port_num) |
44c58487 | 3922 | { |
a6532e71 | 3923 | if (rdma_protocol_roce(dev, port_num)) |
44c58487 | 3924 | return RDMA_AH_ATTR_TYPE_ROCE; |
87daac68 DH |
3925 | if (rdma_protocol_ib(dev, port_num)) { |
3926 | if (rdma_cap_opa_ah(dev, port_num)) | |
3927 | return RDMA_AH_ATTR_TYPE_OPA; | |
44c58487 | 3928 | return RDMA_AH_ATTR_TYPE_IB; |
87daac68 DH |
3929 | } |
3930 | ||
3931 | return RDMA_AH_ATTR_TYPE_UNDEFINED; | |
44c58487 | 3932 | } |
7db20ecd | 3933 | |
62ede777 HD |
3934 | /** |
3935 | * ib_lid_cpu16 - Return lid in 16bit CPU encoding. | |
3936 | * In the current implementation the only way to get | |
3937 | * get the 32bit lid is from other sources for OPA. | |
3938 | * For IB, lids will always be 16bits so cast the | |
3939 | * value accordingly. | |
3940 | * | |
3941 | * @lid: A 32bit LID | |
3942 | */ | |
3943 | static inline u16 ib_lid_cpu16(u32 lid) | |
7db20ecd | 3944 | { |
62ede777 HD |
3945 | WARN_ON_ONCE(lid & 0xFFFF0000); |
3946 | return (u16)lid; | |
7db20ecd HD |
3947 | } |
3948 | ||
62ede777 HD |
3949 | /** |
3950 | * ib_lid_be16 - Return lid in 16bit BE encoding. | |
3951 | * | |
3952 | * @lid: A 32bit LID | |
3953 | */ | |
3954 | static inline __be16 ib_lid_be16(u32 lid) | |
7db20ecd | 3955 | { |
62ede777 HD |
3956 | WARN_ON_ONCE(lid & 0xFFFF0000); |
3957 | return cpu_to_be16((u16)lid); | |
7db20ecd | 3958 | } |
32043830 | 3959 | |
c66cd353 SG |
3960 | /** |
3961 | * ib_get_vector_affinity - Get the affinity mappings of a given completion | |
3962 | * vector | |
3963 | * @device: the rdma device | |
3964 | * @comp_vector: index of completion vector | |
3965 | * | |
3966 | * Returns NULL on failure, otherwise a corresponding cpu map of the | |
3967 | * completion vector (returns all-cpus map if the device driver doesn't | |
3968 | * implement get_vector_affinity). | |
3969 | */ | |
3970 | static inline const struct cpumask * | |
3971 | ib_get_vector_affinity(struct ib_device *device, int comp_vector) | |
3972 | { | |
3973 | if (comp_vector < 0 || comp_vector >= device->num_comp_vectors || | |
3974 | !device->get_vector_affinity) | |
3975 | return NULL; | |
3976 | ||
3977 | return device->get_vector_affinity(device, comp_vector); | |
3978 | ||
3979 | } | |
3980 | ||
32f69e4b DJ |
3981 | /** |
3982 | * rdma_roce_rescan_device - Rescan all of the network devices in the system | |
3983 | * and add their gids, as needed, to the relevant RoCE devices. | |
3984 | * | |
3985 | * @device: the rdma device | |
3986 | */ | |
3987 | void rdma_roce_rescan_device(struct ib_device *ibdev); | |
3988 | ||
1da177e4 | 3989 | #endif /* IB_VERBS_H */ |