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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Copyright (c) 2004 Mellanox Technologies Ltd. All rights reserved. | |
3 | * Copyright (c) 2004 Infinicon Corporation. All rights reserved. | |
4 | * Copyright (c) 2004 Intel Corporation. All rights reserved. | |
5 | * Copyright (c) 2004 Topspin Corporation. All rights reserved. | |
6 | * Copyright (c) 2004 Voltaire Corporation. All rights reserved. | |
2a1d9b7f | 7 | * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. |
f7c6a7b5 | 8 | * Copyright (c) 2005, 2006, 2007 Cisco Systems. All rights reserved. |
1da177e4 LT |
9 | * |
10 | * This software is available to you under a choice of one of two | |
11 | * licenses. You may choose to be licensed under the terms of the GNU | |
12 | * General Public License (GPL) Version 2, available from the file | |
13 | * COPYING in the main directory of this source tree, or the | |
14 | * OpenIB.org BSD license below: | |
15 | * | |
16 | * Redistribution and use in source and binary forms, with or | |
17 | * without modification, are permitted provided that the following | |
18 | * conditions are met: | |
19 | * | |
20 | * - Redistributions of source code must retain the above | |
21 | * copyright notice, this list of conditions and the following | |
22 | * disclaimer. | |
23 | * | |
24 | * - Redistributions in binary form must reproduce the above | |
25 | * copyright notice, this list of conditions and the following | |
26 | * disclaimer in the documentation and/or other materials | |
27 | * provided with the distribution. | |
28 | * | |
29 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
30 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
31 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
32 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
33 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
34 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
35 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
36 | * SOFTWARE. | |
1da177e4 LT |
37 | */ |
38 | ||
39 | #if !defined(IB_VERBS_H) | |
40 | #define IB_VERBS_H | |
41 | ||
42 | #include <linux/types.h> | |
43 | #include <linux/device.h> | |
9b513090 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> |
1da177e4 | 65 | |
f0626710 | 66 | extern struct workqueue_struct *ib_wq; |
14d3a3b2 | 67 | extern struct workqueue_struct *ib_comp_wq; |
f0626710 | 68 | |
1da177e4 LT |
69 | union ib_gid { |
70 | u8 raw[16]; | |
71 | struct { | |
97f52eb4 SH |
72 | __be64 subnet_prefix; |
73 | __be64 interface_id; | |
1da177e4 LT |
74 | } global; |
75 | }; | |
76 | ||
e26be1bf MS |
77 | extern union ib_gid zgid; |
78 | ||
b39ffa1d MB |
79 | enum ib_gid_type { |
80 | /* If link layer is Ethernet, this is RoCE V1 */ | |
81 | IB_GID_TYPE_IB = 0, | |
82 | IB_GID_TYPE_ROCE = 0, | |
7766a99f | 83 | IB_GID_TYPE_ROCE_UDP_ENCAP = 1, |
b39ffa1d MB |
84 | IB_GID_TYPE_SIZE |
85 | }; | |
86 | ||
7ead4bcb | 87 | #define ROCE_V2_UDP_DPORT 4791 |
03db3a2d | 88 | struct ib_gid_attr { |
b39ffa1d | 89 | enum ib_gid_type gid_type; |
03db3a2d MB |
90 | struct net_device *ndev; |
91 | }; | |
92 | ||
07ebafba TT |
93 | enum rdma_node_type { |
94 | /* IB values map to NodeInfo:NodeType. */ | |
95 | RDMA_NODE_IB_CA = 1, | |
96 | RDMA_NODE_IB_SWITCH, | |
97 | RDMA_NODE_IB_ROUTER, | |
180771a3 UM |
98 | RDMA_NODE_RNIC, |
99 | RDMA_NODE_USNIC, | |
5db5765e | 100 | RDMA_NODE_USNIC_UDP, |
1da177e4 LT |
101 | }; |
102 | ||
a0c1b2a3 EC |
103 | enum { |
104 | /* set the local administered indication */ | |
105 | IB_SA_WELL_KNOWN_GUID = BIT_ULL(57) | 2, | |
106 | }; | |
107 | ||
07ebafba TT |
108 | enum rdma_transport_type { |
109 | RDMA_TRANSPORT_IB, | |
180771a3 | 110 | RDMA_TRANSPORT_IWARP, |
248567f7 UM |
111 | RDMA_TRANSPORT_USNIC, |
112 | RDMA_TRANSPORT_USNIC_UDP | |
07ebafba TT |
113 | }; |
114 | ||
6b90a6d6 MW |
115 | enum rdma_protocol_type { |
116 | RDMA_PROTOCOL_IB, | |
117 | RDMA_PROTOCOL_IBOE, | |
118 | RDMA_PROTOCOL_IWARP, | |
119 | RDMA_PROTOCOL_USNIC_UDP | |
120 | }; | |
121 | ||
8385fd84 RD |
122 | __attribute_const__ enum rdma_transport_type |
123 | rdma_node_get_transport(enum rdma_node_type node_type); | |
07ebafba | 124 | |
c865f246 SK |
125 | enum rdma_network_type { |
126 | RDMA_NETWORK_IB, | |
127 | RDMA_NETWORK_ROCE_V1 = RDMA_NETWORK_IB, | |
128 | RDMA_NETWORK_IPV4, | |
129 | RDMA_NETWORK_IPV6 | |
130 | }; | |
131 | ||
132 | static inline enum ib_gid_type ib_network_to_gid_type(enum rdma_network_type network_type) | |
133 | { | |
134 | if (network_type == RDMA_NETWORK_IPV4 || | |
135 | network_type == RDMA_NETWORK_IPV6) | |
136 | return IB_GID_TYPE_ROCE_UDP_ENCAP; | |
137 | ||
138 | /* IB_GID_TYPE_IB same as RDMA_NETWORK_ROCE_V1 */ | |
139 | return IB_GID_TYPE_IB; | |
140 | } | |
141 | ||
142 | static inline enum rdma_network_type ib_gid_to_network_type(enum ib_gid_type gid_type, | |
143 | union ib_gid *gid) | |
144 | { | |
145 | if (gid_type == IB_GID_TYPE_IB) | |
146 | return RDMA_NETWORK_IB; | |
147 | ||
148 | if (ipv6_addr_v4mapped((struct in6_addr *)gid)) | |
149 | return RDMA_NETWORK_IPV4; | |
150 | else | |
151 | return RDMA_NETWORK_IPV6; | |
152 | } | |
153 | ||
a3f5adaf EC |
154 | enum rdma_link_layer { |
155 | IB_LINK_LAYER_UNSPECIFIED, | |
156 | IB_LINK_LAYER_INFINIBAND, | |
157 | IB_LINK_LAYER_ETHERNET, | |
158 | }; | |
159 | ||
1da177e4 | 160 | enum ib_device_cap_flags { |
7ca0bc53 LR |
161 | IB_DEVICE_RESIZE_MAX_WR = (1 << 0), |
162 | IB_DEVICE_BAD_PKEY_CNTR = (1 << 1), | |
163 | IB_DEVICE_BAD_QKEY_CNTR = (1 << 2), | |
164 | IB_DEVICE_RAW_MULTI = (1 << 3), | |
165 | IB_DEVICE_AUTO_PATH_MIG = (1 << 4), | |
166 | IB_DEVICE_CHANGE_PHY_PORT = (1 << 5), | |
167 | IB_DEVICE_UD_AV_PORT_ENFORCE = (1 << 6), | |
168 | IB_DEVICE_CURR_QP_STATE_MOD = (1 << 7), | |
169 | IB_DEVICE_SHUTDOWN_PORT = (1 << 8), | |
170 | IB_DEVICE_INIT_TYPE = (1 << 9), | |
171 | IB_DEVICE_PORT_ACTIVE_EVENT = (1 << 10), | |
172 | IB_DEVICE_SYS_IMAGE_GUID = (1 << 11), | |
173 | IB_DEVICE_RC_RNR_NAK_GEN = (1 << 12), | |
174 | IB_DEVICE_SRQ_RESIZE = (1 << 13), | |
175 | IB_DEVICE_N_NOTIFY_CQ = (1 << 14), | |
b1adc714 CH |
176 | |
177 | /* | |
178 | * This device supports a per-device lkey or stag that can be | |
179 | * used without performing a memory registration for the local | |
180 | * memory. Note that ULPs should never check this flag, but | |
181 | * instead of use the local_dma_lkey flag in the ib_pd structure, | |
182 | * which will always contain a usable lkey. | |
183 | */ | |
7ca0bc53 LR |
184 | IB_DEVICE_LOCAL_DMA_LKEY = (1 << 15), |
185 | IB_DEVICE_RESERVED /* old SEND_W_INV */ = (1 << 16), | |
186 | IB_DEVICE_MEM_WINDOW = (1 << 17), | |
e0605d91 EC |
187 | /* |
188 | * Devices should set IB_DEVICE_UD_IP_SUM if they support | |
189 | * insertion of UDP and TCP checksum on outgoing UD IPoIB | |
190 | * messages and can verify the validity of checksum for | |
191 | * incoming messages. Setting this flag implies that the | |
192 | * IPoIB driver may set NETIF_F_IP_CSUM for datagram mode. | |
193 | */ | |
7ca0bc53 LR |
194 | IB_DEVICE_UD_IP_CSUM = (1 << 18), |
195 | IB_DEVICE_UD_TSO = (1 << 19), | |
196 | IB_DEVICE_XRC = (1 << 20), | |
b1adc714 CH |
197 | |
198 | /* | |
199 | * This device supports the IB "base memory management extension", | |
200 | * which includes support for fast registrations (IB_WR_REG_MR, | |
201 | * IB_WR_LOCAL_INV and IB_WR_SEND_WITH_INV verbs). This flag should | |
202 | * also be set by any iWarp device which must support FRs to comply | |
203 | * to the iWarp verbs spec. iWarp devices also support the | |
204 | * IB_WR_RDMA_READ_WITH_INV verb for RDMA READs that invalidate the | |
205 | * stag. | |
206 | */ | |
7ca0bc53 LR |
207 | IB_DEVICE_MEM_MGT_EXTENSIONS = (1 << 21), |
208 | IB_DEVICE_BLOCK_MULTICAST_LOOPBACK = (1 << 22), | |
209 | IB_DEVICE_MEM_WINDOW_TYPE_2A = (1 << 23), | |
210 | IB_DEVICE_MEM_WINDOW_TYPE_2B = (1 << 24), | |
211 | IB_DEVICE_RC_IP_CSUM = (1 << 25), | |
ebaaee25 | 212 | /* Deprecated. Please use IB_RAW_PACKET_CAP_IP_CSUM. */ |
7ca0bc53 | 213 | IB_DEVICE_RAW_IP_CSUM = (1 << 26), |
8a06ce59 LR |
214 | /* |
215 | * Devices should set IB_DEVICE_CROSS_CHANNEL if they | |
216 | * support execution of WQEs that involve synchronization | |
217 | * of I/O operations with single completion queue managed | |
218 | * by hardware. | |
219 | */ | |
220 | IB_DEVICE_CROSS_CHANNEL = (1 << 27), | |
7ca0bc53 LR |
221 | IB_DEVICE_MANAGED_FLOW_STEERING = (1 << 29), |
222 | IB_DEVICE_SIGNATURE_HANDOVER = (1 << 30), | |
47355b3c | 223 | IB_DEVICE_ON_DEMAND_PAGING = (1ULL << 31), |
f5aa9159 | 224 | IB_DEVICE_SG_GAPS_REG = (1ULL << 32), |
c7e162a4 | 225 | IB_DEVICE_VIRTUAL_FUNCTION = (1ULL << 33), |
ebaaee25 | 226 | /* Deprecated. Please use IB_RAW_PACKET_CAP_SCATTER_FCS. */ |
c7e162a4 | 227 | IB_DEVICE_RAW_SCATTER_FCS = (1ULL << 34), |
62e45949 | 228 | IB_DEVICE_RDMA_NETDEV_OPA_VNIC = (1ULL << 35), |
1b01d335 SG |
229 | }; |
230 | ||
231 | enum ib_signature_prot_cap { | |
232 | IB_PROT_T10DIF_TYPE_1 = 1, | |
233 | IB_PROT_T10DIF_TYPE_2 = 1 << 1, | |
234 | IB_PROT_T10DIF_TYPE_3 = 1 << 2, | |
235 | }; | |
236 | ||
237 | enum ib_signature_guard_cap { | |
238 | IB_GUARD_T10DIF_CRC = 1, | |
239 | IB_GUARD_T10DIF_CSUM = 1 << 1, | |
1da177e4 LT |
240 | }; |
241 | ||
242 | enum ib_atomic_cap { | |
243 | IB_ATOMIC_NONE, | |
244 | IB_ATOMIC_HCA, | |
245 | IB_ATOMIC_GLOB | |
246 | }; | |
247 | ||
860f10a7 | 248 | enum ib_odp_general_cap_bits { |
25bf14d6 AK |
249 | IB_ODP_SUPPORT = 1 << 0, |
250 | IB_ODP_SUPPORT_IMPLICIT = 1 << 1, | |
860f10a7 SG |
251 | }; |
252 | ||
253 | enum ib_odp_transport_cap_bits { | |
254 | IB_ODP_SUPPORT_SEND = 1 << 0, | |
255 | IB_ODP_SUPPORT_RECV = 1 << 1, | |
256 | IB_ODP_SUPPORT_WRITE = 1 << 2, | |
257 | IB_ODP_SUPPORT_READ = 1 << 3, | |
258 | IB_ODP_SUPPORT_ATOMIC = 1 << 4, | |
259 | }; | |
260 | ||
261 | struct ib_odp_caps { | |
262 | uint64_t general_caps; | |
263 | struct { | |
264 | uint32_t rc_odp_caps; | |
265 | uint32_t uc_odp_caps; | |
266 | uint32_t ud_odp_caps; | |
267 | } per_transport_caps; | |
268 | }; | |
269 | ||
ccf20562 YH |
270 | struct ib_rss_caps { |
271 | /* Corresponding bit will be set if qp type from | |
272 | * 'enum ib_qp_type' is supported, e.g. | |
273 | * supported_qpts |= 1 << IB_QPT_UD | |
274 | */ | |
275 | u32 supported_qpts; | |
276 | u32 max_rwq_indirection_tables; | |
277 | u32 max_rwq_indirection_table_size; | |
278 | }; | |
279 | ||
b9926b92 MB |
280 | enum ib_cq_creation_flags { |
281 | IB_CQ_FLAGS_TIMESTAMP_COMPLETION = 1 << 0, | |
8a06ce59 | 282 | IB_CQ_FLAGS_IGNORE_OVERRUN = 1 << 1, |
b9926b92 MB |
283 | }; |
284 | ||
bcf4c1ea MB |
285 | struct ib_cq_init_attr { |
286 | unsigned int cqe; | |
287 | int comp_vector; | |
288 | u32 flags; | |
289 | }; | |
290 | ||
1da177e4 LT |
291 | struct ib_device_attr { |
292 | u64 fw_ver; | |
97f52eb4 | 293 | __be64 sys_image_guid; |
1da177e4 LT |
294 | u64 max_mr_size; |
295 | u64 page_size_cap; | |
296 | u32 vendor_id; | |
297 | u32 vendor_part_id; | |
298 | u32 hw_ver; | |
299 | int max_qp; | |
300 | int max_qp_wr; | |
fb532d6a | 301 | u64 device_cap_flags; |
1da177e4 LT |
302 | int max_sge; |
303 | int max_sge_rd; | |
304 | int max_cq; | |
305 | int max_cqe; | |
306 | int max_mr; | |
307 | int max_pd; | |
308 | int max_qp_rd_atom; | |
309 | int max_ee_rd_atom; | |
310 | int max_res_rd_atom; | |
311 | int max_qp_init_rd_atom; | |
312 | int max_ee_init_rd_atom; | |
313 | enum ib_atomic_cap atomic_cap; | |
5e80ba8f | 314 | enum ib_atomic_cap masked_atomic_cap; |
1da177e4 LT |
315 | int max_ee; |
316 | int max_rdd; | |
317 | int max_mw; | |
318 | int max_raw_ipv6_qp; | |
319 | int max_raw_ethy_qp; | |
320 | int max_mcast_grp; | |
321 | int max_mcast_qp_attach; | |
322 | int max_total_mcast_qp_attach; | |
323 | int max_ah; | |
324 | int max_fmr; | |
325 | int max_map_per_fmr; | |
326 | int max_srq; | |
327 | int max_srq_wr; | |
328 | int max_srq_sge; | |
00f7ec36 | 329 | unsigned int max_fast_reg_page_list_len; |
1da177e4 LT |
330 | u16 max_pkeys; |
331 | u8 local_ca_ack_delay; | |
1b01d335 SG |
332 | int sig_prot_cap; |
333 | int sig_guard_cap; | |
860f10a7 | 334 | struct ib_odp_caps odp_caps; |
24306dc6 MB |
335 | uint64_t timestamp_mask; |
336 | uint64_t hca_core_clock; /* in KHZ */ | |
ccf20562 YH |
337 | struct ib_rss_caps rss_caps; |
338 | u32 max_wq_type_rq; | |
ebaaee25 | 339 | u32 raw_packet_caps; /* Use ib_raw_packet_caps enum */ |
1da177e4 LT |
340 | }; |
341 | ||
342 | enum ib_mtu { | |
343 | IB_MTU_256 = 1, | |
344 | IB_MTU_512 = 2, | |
345 | IB_MTU_1024 = 3, | |
346 | IB_MTU_2048 = 4, | |
347 | IB_MTU_4096 = 5 | |
348 | }; | |
349 | ||
350 | static inline int ib_mtu_enum_to_int(enum ib_mtu mtu) | |
351 | { | |
352 | switch (mtu) { | |
353 | case IB_MTU_256: return 256; | |
354 | case IB_MTU_512: return 512; | |
355 | case IB_MTU_1024: return 1024; | |
356 | case IB_MTU_2048: return 2048; | |
357 | case IB_MTU_4096: return 4096; | |
358 | default: return -1; | |
359 | } | |
360 | } | |
361 | ||
d3f4aadd AR |
362 | static inline enum ib_mtu ib_mtu_int_to_enum(int mtu) |
363 | { | |
364 | if (mtu >= 4096) | |
365 | return IB_MTU_4096; | |
366 | else if (mtu >= 2048) | |
367 | return IB_MTU_2048; | |
368 | else if (mtu >= 1024) | |
369 | return IB_MTU_1024; | |
370 | else if (mtu >= 512) | |
371 | return IB_MTU_512; | |
372 | else | |
373 | return IB_MTU_256; | |
374 | } | |
375 | ||
1da177e4 LT |
376 | enum ib_port_state { |
377 | IB_PORT_NOP = 0, | |
378 | IB_PORT_DOWN = 1, | |
379 | IB_PORT_INIT = 2, | |
380 | IB_PORT_ARMED = 3, | |
381 | IB_PORT_ACTIVE = 4, | |
382 | IB_PORT_ACTIVE_DEFER = 5 | |
383 | }; | |
384 | ||
385 | enum ib_port_cap_flags { | |
386 | IB_PORT_SM = 1 << 1, | |
387 | IB_PORT_NOTICE_SUP = 1 << 2, | |
388 | IB_PORT_TRAP_SUP = 1 << 3, | |
389 | IB_PORT_OPT_IPD_SUP = 1 << 4, | |
390 | IB_PORT_AUTO_MIGR_SUP = 1 << 5, | |
391 | IB_PORT_SL_MAP_SUP = 1 << 6, | |
392 | IB_PORT_MKEY_NVRAM = 1 << 7, | |
393 | IB_PORT_PKEY_NVRAM = 1 << 8, | |
394 | IB_PORT_LED_INFO_SUP = 1 << 9, | |
395 | IB_PORT_SM_DISABLED = 1 << 10, | |
396 | IB_PORT_SYS_IMAGE_GUID_SUP = 1 << 11, | |
397 | IB_PORT_PKEY_SW_EXT_PORT_TRAP_SUP = 1 << 12, | |
71eeba16 | 398 | IB_PORT_EXTENDED_SPEEDS_SUP = 1 << 14, |
1da177e4 LT |
399 | IB_PORT_CM_SUP = 1 << 16, |
400 | IB_PORT_SNMP_TUNNEL_SUP = 1 << 17, | |
401 | IB_PORT_REINIT_SUP = 1 << 18, | |
402 | IB_PORT_DEVICE_MGMT_SUP = 1 << 19, | |
403 | IB_PORT_VENDOR_CLASS_SUP = 1 << 20, | |
404 | IB_PORT_DR_NOTICE_SUP = 1 << 21, | |
405 | IB_PORT_CAP_MASK_NOTICE_SUP = 1 << 22, | |
406 | IB_PORT_BOOT_MGMT_SUP = 1 << 23, | |
407 | IB_PORT_LINK_LATENCY_SUP = 1 << 24, | |
b4a26a27 | 408 | IB_PORT_CLIENT_REG_SUP = 1 << 25, |
03db3a2d | 409 | IB_PORT_IP_BASED_GIDS = 1 << 26, |
1da177e4 LT |
410 | }; |
411 | ||
412 | enum ib_port_width { | |
413 | IB_WIDTH_1X = 1, | |
414 | IB_WIDTH_4X = 2, | |
415 | IB_WIDTH_8X = 4, | |
416 | IB_WIDTH_12X = 8 | |
417 | }; | |
418 | ||
419 | static inline int ib_width_enum_to_int(enum ib_port_width width) | |
420 | { | |
421 | switch (width) { | |
422 | case IB_WIDTH_1X: return 1; | |
423 | case IB_WIDTH_4X: return 4; | |
424 | case IB_WIDTH_8X: return 8; | |
425 | case IB_WIDTH_12X: return 12; | |
426 | default: return -1; | |
427 | } | |
428 | } | |
429 | ||
2e96691c OG |
430 | enum ib_port_speed { |
431 | IB_SPEED_SDR = 1, | |
432 | IB_SPEED_DDR = 2, | |
433 | IB_SPEED_QDR = 4, | |
434 | IB_SPEED_FDR10 = 8, | |
435 | IB_SPEED_FDR = 16, | |
12113a35 NO |
436 | IB_SPEED_EDR = 32, |
437 | IB_SPEED_HDR = 64 | |
2e96691c OG |
438 | }; |
439 | ||
b40f4757 CL |
440 | /** |
441 | * struct rdma_hw_stats | |
442 | * @timestamp - Used by the core code to track when the last update was | |
443 | * @lifespan - Used by the core code to determine how old the counters | |
444 | * should be before being updated again. Stored in jiffies, defaults | |
445 | * to 10 milliseconds, drivers can override the default be specifying | |
446 | * their own value during their allocation routine. | |
447 | * @name - Array of pointers to static names used for the counters in | |
448 | * directory. | |
449 | * @num_counters - How many hardware counters there are. If name is | |
450 | * shorter than this number, a kernel oops will result. Driver authors | |
451 | * are encouraged to leave BUILD_BUG_ON(ARRAY_SIZE(@name) < num_counters) | |
452 | * in their code to prevent this. | |
453 | * @value - Array of u64 counters that are accessed by the sysfs code and | |
454 | * filled in by the drivers get_stats routine | |
455 | */ | |
456 | struct rdma_hw_stats { | |
457 | unsigned long timestamp; | |
458 | unsigned long lifespan; | |
459 | const char * const *names; | |
460 | int num_counters; | |
461 | u64 value[]; | |
7f624d02 SW |
462 | }; |
463 | ||
b40f4757 CL |
464 | #define RDMA_HW_STATS_DEFAULT_LIFESPAN 10 |
465 | /** | |
466 | * rdma_alloc_hw_stats_struct - Helper function to allocate dynamic struct | |
467 | * for drivers. | |
468 | * @names - Array of static const char * | |
469 | * @num_counters - How many elements in array | |
470 | * @lifespan - How many milliseconds between updates | |
471 | */ | |
472 | static inline struct rdma_hw_stats *rdma_alloc_hw_stats_struct( | |
473 | const char * const *names, int num_counters, | |
474 | unsigned long lifespan) | |
475 | { | |
476 | struct rdma_hw_stats *stats; | |
477 | ||
478 | stats = kzalloc(sizeof(*stats) + num_counters * sizeof(u64), | |
479 | GFP_KERNEL); | |
480 | if (!stats) | |
481 | return NULL; | |
482 | stats->names = names; | |
483 | stats->num_counters = num_counters; | |
484 | stats->lifespan = msecs_to_jiffies(lifespan); | |
485 | ||
486 | return stats; | |
487 | } | |
488 | ||
489 | ||
f9b22e35 IW |
490 | /* Define bits for the various functionality this port needs to be supported by |
491 | * the core. | |
492 | */ | |
493 | /* Management 0x00000FFF */ | |
494 | #define RDMA_CORE_CAP_IB_MAD 0x00000001 | |
495 | #define RDMA_CORE_CAP_IB_SMI 0x00000002 | |
496 | #define RDMA_CORE_CAP_IB_CM 0x00000004 | |
497 | #define RDMA_CORE_CAP_IW_CM 0x00000008 | |
498 | #define RDMA_CORE_CAP_IB_SA 0x00000010 | |
65995fee | 499 | #define RDMA_CORE_CAP_OPA_MAD 0x00000020 |
f9b22e35 IW |
500 | |
501 | /* Address format 0x000FF000 */ | |
502 | #define RDMA_CORE_CAP_AF_IB 0x00001000 | |
503 | #define RDMA_CORE_CAP_ETH_AH 0x00002000 | |
94d595c5 | 504 | #define RDMA_CORE_CAP_OPA_AH 0x00004000 |
f9b22e35 IW |
505 | |
506 | /* Protocol 0xFFF00000 */ | |
507 | #define RDMA_CORE_CAP_PROT_IB 0x00100000 | |
508 | #define RDMA_CORE_CAP_PROT_ROCE 0x00200000 | |
509 | #define RDMA_CORE_CAP_PROT_IWARP 0x00400000 | |
7766a99f | 510 | #define RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP 0x00800000 |
aa773bd4 | 511 | #define RDMA_CORE_CAP_PROT_RAW_PACKET 0x01000000 |
ce1e055f | 512 | #define RDMA_CORE_CAP_PROT_USNIC 0x02000000 |
f9b22e35 IW |
513 | |
514 | #define RDMA_CORE_PORT_IBA_IB (RDMA_CORE_CAP_PROT_IB \ | |
515 | | RDMA_CORE_CAP_IB_MAD \ | |
516 | | RDMA_CORE_CAP_IB_SMI \ | |
517 | | RDMA_CORE_CAP_IB_CM \ | |
518 | | RDMA_CORE_CAP_IB_SA \ | |
519 | | RDMA_CORE_CAP_AF_IB) | |
520 | #define RDMA_CORE_PORT_IBA_ROCE (RDMA_CORE_CAP_PROT_ROCE \ | |
521 | | RDMA_CORE_CAP_IB_MAD \ | |
522 | | RDMA_CORE_CAP_IB_CM \ | |
f9b22e35 IW |
523 | | RDMA_CORE_CAP_AF_IB \ |
524 | | RDMA_CORE_CAP_ETH_AH) | |
7766a99f MB |
525 | #define RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP \ |
526 | (RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP \ | |
527 | | RDMA_CORE_CAP_IB_MAD \ | |
528 | | RDMA_CORE_CAP_IB_CM \ | |
529 | | RDMA_CORE_CAP_AF_IB \ | |
530 | | RDMA_CORE_CAP_ETH_AH) | |
f9b22e35 IW |
531 | #define RDMA_CORE_PORT_IWARP (RDMA_CORE_CAP_PROT_IWARP \ |
532 | | RDMA_CORE_CAP_IW_CM) | |
65995fee IW |
533 | #define RDMA_CORE_PORT_INTEL_OPA (RDMA_CORE_PORT_IBA_IB \ |
534 | | RDMA_CORE_CAP_OPA_MAD) | |
f9b22e35 | 535 | |
aa773bd4 OG |
536 | #define RDMA_CORE_PORT_RAW_PACKET (RDMA_CORE_CAP_PROT_RAW_PACKET) |
537 | ||
ce1e055f OG |
538 | #define RDMA_CORE_PORT_USNIC (RDMA_CORE_CAP_PROT_USNIC) |
539 | ||
1da177e4 | 540 | struct ib_port_attr { |
fad61ad4 | 541 | u64 subnet_prefix; |
1da177e4 LT |
542 | enum ib_port_state state; |
543 | enum ib_mtu max_mtu; | |
544 | enum ib_mtu active_mtu; | |
545 | int gid_tbl_len; | |
546 | u32 port_cap_flags; | |
547 | u32 max_msg_sz; | |
548 | u32 bad_pkey_cntr; | |
549 | u32 qkey_viol_cntr; | |
550 | u16 pkey_tbl_len; | |
551 | u16 lid; | |
552 | u16 sm_lid; | |
553 | u8 lmc; | |
554 | u8 max_vl_num; | |
555 | u8 sm_sl; | |
556 | u8 subnet_timeout; | |
557 | u8 init_type_reply; | |
558 | u8 active_width; | |
559 | u8 active_speed; | |
560 | u8 phys_state; | |
a0c1b2a3 | 561 | bool grh_required; |
1da177e4 LT |
562 | }; |
563 | ||
564 | enum ib_device_modify_flags { | |
c5bcbbb9 RD |
565 | IB_DEVICE_MODIFY_SYS_IMAGE_GUID = 1 << 0, |
566 | IB_DEVICE_MODIFY_NODE_DESC = 1 << 1 | |
1da177e4 LT |
567 | }; |
568 | ||
bd99fdea YS |
569 | #define IB_DEVICE_NODE_DESC_MAX 64 |
570 | ||
1da177e4 LT |
571 | struct ib_device_modify { |
572 | u64 sys_image_guid; | |
bd99fdea | 573 | char node_desc[IB_DEVICE_NODE_DESC_MAX]; |
1da177e4 LT |
574 | }; |
575 | ||
576 | enum ib_port_modify_flags { | |
577 | IB_PORT_SHUTDOWN = 1, | |
578 | IB_PORT_INIT_TYPE = (1<<2), | |
579 | IB_PORT_RESET_QKEY_CNTR = (1<<3) | |
580 | }; | |
581 | ||
582 | struct ib_port_modify { | |
583 | u32 set_port_cap_mask; | |
584 | u32 clr_port_cap_mask; | |
585 | u8 init_type; | |
586 | }; | |
587 | ||
588 | enum ib_event_type { | |
589 | IB_EVENT_CQ_ERR, | |
590 | IB_EVENT_QP_FATAL, | |
591 | IB_EVENT_QP_REQ_ERR, | |
592 | IB_EVENT_QP_ACCESS_ERR, | |
593 | IB_EVENT_COMM_EST, | |
594 | IB_EVENT_SQ_DRAINED, | |
595 | IB_EVENT_PATH_MIG, | |
596 | IB_EVENT_PATH_MIG_ERR, | |
597 | IB_EVENT_DEVICE_FATAL, | |
598 | IB_EVENT_PORT_ACTIVE, | |
599 | IB_EVENT_PORT_ERR, | |
600 | IB_EVENT_LID_CHANGE, | |
601 | IB_EVENT_PKEY_CHANGE, | |
d41fcc67 RD |
602 | IB_EVENT_SM_CHANGE, |
603 | IB_EVENT_SRQ_ERR, | |
604 | IB_EVENT_SRQ_LIMIT_REACHED, | |
63942c9a | 605 | IB_EVENT_QP_LAST_WQE_REACHED, |
761d90ed OG |
606 | IB_EVENT_CLIENT_REREGISTER, |
607 | IB_EVENT_GID_CHANGE, | |
f213c052 | 608 | IB_EVENT_WQ_FATAL, |
1da177e4 LT |
609 | }; |
610 | ||
db7489e0 | 611 | const char *__attribute_const__ ib_event_msg(enum ib_event_type event); |
2b1b5b60 | 612 | |
1da177e4 LT |
613 | struct ib_event { |
614 | struct ib_device *device; | |
615 | union { | |
616 | struct ib_cq *cq; | |
617 | struct ib_qp *qp; | |
d41fcc67 | 618 | struct ib_srq *srq; |
f213c052 | 619 | struct ib_wq *wq; |
1da177e4 LT |
620 | u8 port_num; |
621 | } element; | |
622 | enum ib_event_type event; | |
623 | }; | |
624 | ||
625 | struct ib_event_handler { | |
626 | struct ib_device *device; | |
627 | void (*handler)(struct ib_event_handler *, struct ib_event *); | |
628 | struct list_head list; | |
629 | }; | |
630 | ||
631 | #define INIT_IB_EVENT_HANDLER(_ptr, _device, _handler) \ | |
632 | do { \ | |
633 | (_ptr)->device = _device; \ | |
634 | (_ptr)->handler = _handler; \ | |
635 | INIT_LIST_HEAD(&(_ptr)->list); \ | |
636 | } while (0) | |
637 | ||
638 | struct ib_global_route { | |
639 | union ib_gid dgid; | |
640 | u32 flow_label; | |
641 | u8 sgid_index; | |
642 | u8 hop_limit; | |
643 | u8 traffic_class; | |
644 | }; | |
645 | ||
513789ed | 646 | struct ib_grh { |
97f52eb4 SH |
647 | __be32 version_tclass_flow; |
648 | __be16 paylen; | |
513789ed HR |
649 | u8 next_hdr; |
650 | u8 hop_limit; | |
651 | union ib_gid sgid; | |
652 | union ib_gid dgid; | |
653 | }; | |
654 | ||
c865f246 SK |
655 | union rdma_network_hdr { |
656 | struct ib_grh ibgrh; | |
657 | struct { | |
658 | /* The IB spec states that if it's IPv4, the header | |
659 | * is located in the last 20 bytes of the header. | |
660 | */ | |
661 | u8 reserved[20]; | |
662 | struct iphdr roce4grh; | |
663 | }; | |
664 | }; | |
665 | ||
1da177e4 LT |
666 | enum { |
667 | IB_MULTICAST_QPN = 0xffffff | |
668 | }; | |
669 | ||
f3a7c66b | 670 | #define IB_LID_PERMISSIVE cpu_to_be16(0xFFFF) |
b4e64397 | 671 | #define IB_MULTICAST_LID_BASE cpu_to_be16(0xC000) |
97f52eb4 | 672 | |
1da177e4 LT |
673 | enum ib_ah_flags { |
674 | IB_AH_GRH = 1 | |
675 | }; | |
676 | ||
bf6a9e31 JM |
677 | enum ib_rate { |
678 | IB_RATE_PORT_CURRENT = 0, | |
679 | IB_RATE_2_5_GBPS = 2, | |
680 | IB_RATE_5_GBPS = 5, | |
681 | IB_RATE_10_GBPS = 3, | |
682 | IB_RATE_20_GBPS = 6, | |
683 | IB_RATE_30_GBPS = 4, | |
684 | IB_RATE_40_GBPS = 7, | |
685 | IB_RATE_60_GBPS = 8, | |
686 | IB_RATE_80_GBPS = 9, | |
71eeba16 MA |
687 | IB_RATE_120_GBPS = 10, |
688 | IB_RATE_14_GBPS = 11, | |
689 | IB_RATE_56_GBPS = 12, | |
690 | IB_RATE_112_GBPS = 13, | |
691 | IB_RATE_168_GBPS = 14, | |
692 | IB_RATE_25_GBPS = 15, | |
693 | IB_RATE_100_GBPS = 16, | |
694 | IB_RATE_200_GBPS = 17, | |
695 | IB_RATE_300_GBPS = 18 | |
bf6a9e31 JM |
696 | }; |
697 | ||
698 | /** | |
699 | * ib_rate_to_mult - Convert the IB rate enum to a multiple of the | |
700 | * base rate of 2.5 Gbit/sec. For example, IB_RATE_5_GBPS will be | |
701 | * converted to 2, since 5 Gbit/sec is 2 * 2.5 Gbit/sec. | |
702 | * @rate: rate to convert. | |
703 | */ | |
8385fd84 | 704 | __attribute_const__ int ib_rate_to_mult(enum ib_rate rate); |
bf6a9e31 | 705 | |
71eeba16 MA |
706 | /** |
707 | * ib_rate_to_mbps - Convert the IB rate enum to Mbps. | |
708 | * For example, IB_RATE_2_5_GBPS will be converted to 2500. | |
709 | * @rate: rate to convert. | |
710 | */ | |
8385fd84 | 711 | __attribute_const__ int ib_rate_to_mbps(enum ib_rate rate); |
71eeba16 | 712 | |
17cd3a2d SG |
713 | |
714 | /** | |
9bee178b SG |
715 | * enum ib_mr_type - memory region type |
716 | * @IB_MR_TYPE_MEM_REG: memory region that is used for | |
717 | * normal registration | |
718 | * @IB_MR_TYPE_SIGNATURE: memory region that is used for | |
719 | * signature operations (data-integrity | |
720 | * capable regions) | |
f5aa9159 SG |
721 | * @IB_MR_TYPE_SG_GAPS: memory region that is capable to |
722 | * register any arbitrary sg lists (without | |
723 | * the normal mr constraints - see | |
724 | * ib_map_mr_sg) | |
17cd3a2d | 725 | */ |
9bee178b SG |
726 | enum ib_mr_type { |
727 | IB_MR_TYPE_MEM_REG, | |
728 | IB_MR_TYPE_SIGNATURE, | |
f5aa9159 | 729 | IB_MR_TYPE_SG_GAPS, |
17cd3a2d SG |
730 | }; |
731 | ||
1b01d335 | 732 | /** |
78eda2bb SG |
733 | * Signature types |
734 | * IB_SIG_TYPE_NONE: Unprotected. | |
735 | * IB_SIG_TYPE_T10_DIF: Type T10-DIF | |
1b01d335 | 736 | */ |
78eda2bb SG |
737 | enum ib_signature_type { |
738 | IB_SIG_TYPE_NONE, | |
739 | IB_SIG_TYPE_T10_DIF, | |
1b01d335 SG |
740 | }; |
741 | ||
742 | /** | |
743 | * Signature T10-DIF block-guard types | |
744 | * IB_T10DIF_CRC: Corresponds to T10-PI mandated CRC checksum rules. | |
745 | * IB_T10DIF_CSUM: Corresponds to IP checksum rules. | |
746 | */ | |
747 | enum ib_t10_dif_bg_type { | |
748 | IB_T10DIF_CRC, | |
749 | IB_T10DIF_CSUM | |
750 | }; | |
751 | ||
752 | /** | |
753 | * struct ib_t10_dif_domain - Parameters specific for T10-DIF | |
754 | * domain. | |
1b01d335 SG |
755 | * @bg_type: T10-DIF block guard type (CRC|CSUM) |
756 | * @pi_interval: protection information interval. | |
757 | * @bg: seed of guard computation. | |
758 | * @app_tag: application tag of guard block | |
759 | * @ref_tag: initial guard block reference tag. | |
78eda2bb SG |
760 | * @ref_remap: Indicate wethear the reftag increments each block |
761 | * @app_escape: Indicate to skip block check if apptag=0xffff | |
762 | * @ref_escape: Indicate to skip block check if reftag=0xffffffff | |
763 | * @apptag_check_mask: check bitmask of application tag. | |
1b01d335 SG |
764 | */ |
765 | struct ib_t10_dif_domain { | |
1b01d335 SG |
766 | enum ib_t10_dif_bg_type bg_type; |
767 | u16 pi_interval; | |
768 | u16 bg; | |
769 | u16 app_tag; | |
770 | u32 ref_tag; | |
78eda2bb SG |
771 | bool ref_remap; |
772 | bool app_escape; | |
773 | bool ref_escape; | |
774 | u16 apptag_check_mask; | |
1b01d335 SG |
775 | }; |
776 | ||
777 | /** | |
778 | * struct ib_sig_domain - Parameters for signature domain | |
779 | * @sig_type: specific signauture type | |
780 | * @sig: union of all signature domain attributes that may | |
781 | * be used to set domain layout. | |
782 | */ | |
783 | struct ib_sig_domain { | |
784 | enum ib_signature_type sig_type; | |
785 | union { | |
786 | struct ib_t10_dif_domain dif; | |
787 | } sig; | |
788 | }; | |
789 | ||
790 | /** | |
791 | * struct ib_sig_attrs - Parameters for signature handover operation | |
792 | * @check_mask: bitmask for signature byte check (8 bytes) | |
793 | * @mem: memory domain layout desciptor. | |
794 | * @wire: wire domain layout desciptor. | |
795 | */ | |
796 | struct ib_sig_attrs { | |
797 | u8 check_mask; | |
798 | struct ib_sig_domain mem; | |
799 | struct ib_sig_domain wire; | |
800 | }; | |
801 | ||
802 | enum ib_sig_err_type { | |
803 | IB_SIG_BAD_GUARD, | |
804 | IB_SIG_BAD_REFTAG, | |
805 | IB_SIG_BAD_APPTAG, | |
806 | }; | |
807 | ||
808 | /** | |
809 | * struct ib_sig_err - signature error descriptor | |
810 | */ | |
811 | struct ib_sig_err { | |
812 | enum ib_sig_err_type err_type; | |
813 | u32 expected; | |
814 | u32 actual; | |
815 | u64 sig_err_offset; | |
816 | u32 key; | |
817 | }; | |
818 | ||
819 | enum ib_mr_status_check { | |
820 | IB_MR_CHECK_SIG_STATUS = 1, | |
821 | }; | |
822 | ||
823 | /** | |
824 | * struct ib_mr_status - Memory region status container | |
825 | * | |
826 | * @fail_status: Bitmask of MR checks status. For each | |
827 | * failed check a corresponding status bit is set. | |
828 | * @sig_err: Additional info for IB_MR_CEHCK_SIG_STATUS | |
829 | * failure. | |
830 | */ | |
831 | struct ib_mr_status { | |
832 | u32 fail_status; | |
833 | struct ib_sig_err sig_err; | |
834 | }; | |
835 | ||
bf6a9e31 JM |
836 | /** |
837 | * mult_to_ib_rate - Convert a multiple of 2.5 Gbit/sec to an IB rate | |
838 | * enum. | |
839 | * @mult: multiple to convert. | |
840 | */ | |
8385fd84 | 841 | __attribute_const__ enum ib_rate mult_to_ib_rate(int mult); |
bf6a9e31 | 842 | |
90898850 | 843 | struct rdma_ah_attr { |
1da177e4 LT |
844 | struct ib_global_route grh; |
845 | u16 dlid; | |
846 | u8 sl; | |
847 | u8 src_path_bits; | |
848 | u8 static_rate; | |
849 | u8 ah_flags; | |
850 | u8 port_num; | |
dd5f03be | 851 | u8 dmac[ETH_ALEN]; |
1da177e4 LT |
852 | }; |
853 | ||
854 | enum ib_wc_status { | |
855 | IB_WC_SUCCESS, | |
856 | IB_WC_LOC_LEN_ERR, | |
857 | IB_WC_LOC_QP_OP_ERR, | |
858 | IB_WC_LOC_EEC_OP_ERR, | |
859 | IB_WC_LOC_PROT_ERR, | |
860 | IB_WC_WR_FLUSH_ERR, | |
861 | IB_WC_MW_BIND_ERR, | |
862 | IB_WC_BAD_RESP_ERR, | |
863 | IB_WC_LOC_ACCESS_ERR, | |
864 | IB_WC_REM_INV_REQ_ERR, | |
865 | IB_WC_REM_ACCESS_ERR, | |
866 | IB_WC_REM_OP_ERR, | |
867 | IB_WC_RETRY_EXC_ERR, | |
868 | IB_WC_RNR_RETRY_EXC_ERR, | |
869 | IB_WC_LOC_RDD_VIOL_ERR, | |
870 | IB_WC_REM_INV_RD_REQ_ERR, | |
871 | IB_WC_REM_ABORT_ERR, | |
872 | IB_WC_INV_EECN_ERR, | |
873 | IB_WC_INV_EEC_STATE_ERR, | |
874 | IB_WC_FATAL_ERR, | |
875 | IB_WC_RESP_TIMEOUT_ERR, | |
876 | IB_WC_GENERAL_ERR | |
877 | }; | |
878 | ||
db7489e0 | 879 | const char *__attribute_const__ ib_wc_status_msg(enum ib_wc_status status); |
2b1b5b60 | 880 | |
1da177e4 LT |
881 | enum ib_wc_opcode { |
882 | IB_WC_SEND, | |
883 | IB_WC_RDMA_WRITE, | |
884 | IB_WC_RDMA_READ, | |
885 | IB_WC_COMP_SWAP, | |
886 | IB_WC_FETCH_ADD, | |
c93570f2 | 887 | IB_WC_LSO, |
00f7ec36 | 888 | IB_WC_LOCAL_INV, |
4c67e2bf | 889 | IB_WC_REG_MR, |
5e80ba8f VS |
890 | IB_WC_MASKED_COMP_SWAP, |
891 | IB_WC_MASKED_FETCH_ADD, | |
1da177e4 LT |
892 | /* |
893 | * Set value of IB_WC_RECV so consumers can test if a completion is a | |
894 | * receive by testing (opcode & IB_WC_RECV). | |
895 | */ | |
896 | IB_WC_RECV = 1 << 7, | |
897 | IB_WC_RECV_RDMA_WITH_IMM | |
898 | }; | |
899 | ||
900 | enum ib_wc_flags { | |
901 | IB_WC_GRH = 1, | |
00f7ec36 SW |
902 | IB_WC_WITH_IMM = (1<<1), |
903 | IB_WC_WITH_INVALIDATE = (1<<2), | |
d927d505 | 904 | IB_WC_IP_CSUM_OK = (1<<3), |
dd5f03be MB |
905 | IB_WC_WITH_SMAC = (1<<4), |
906 | IB_WC_WITH_VLAN = (1<<5), | |
c865f246 | 907 | IB_WC_WITH_NETWORK_HDR_TYPE = (1<<6), |
1da177e4 LT |
908 | }; |
909 | ||
910 | struct ib_wc { | |
14d3a3b2 CH |
911 | union { |
912 | u64 wr_id; | |
913 | struct ib_cqe *wr_cqe; | |
914 | }; | |
1da177e4 LT |
915 | enum ib_wc_status status; |
916 | enum ib_wc_opcode opcode; | |
917 | u32 vendor_err; | |
918 | u32 byte_len; | |
062dbb69 | 919 | struct ib_qp *qp; |
00f7ec36 SW |
920 | union { |
921 | __be32 imm_data; | |
922 | u32 invalidate_rkey; | |
923 | } ex; | |
1da177e4 LT |
924 | u32 src_qp; |
925 | int wc_flags; | |
926 | u16 pkey_index; | |
927 | u16 slid; | |
928 | u8 sl; | |
929 | u8 dlid_path_bits; | |
930 | u8 port_num; /* valid only for DR SMPs on switches */ | |
dd5f03be MB |
931 | u8 smac[ETH_ALEN]; |
932 | u16 vlan_id; | |
c865f246 | 933 | u8 network_hdr_type; |
1da177e4 LT |
934 | }; |
935 | ||
ed23a727 RD |
936 | enum ib_cq_notify_flags { |
937 | IB_CQ_SOLICITED = 1 << 0, | |
938 | IB_CQ_NEXT_COMP = 1 << 1, | |
939 | IB_CQ_SOLICITED_MASK = IB_CQ_SOLICITED | IB_CQ_NEXT_COMP, | |
940 | IB_CQ_REPORT_MISSED_EVENTS = 1 << 2, | |
1da177e4 LT |
941 | }; |
942 | ||
96104eda | 943 | enum ib_srq_type { |
418d5130 SH |
944 | IB_SRQT_BASIC, |
945 | IB_SRQT_XRC | |
96104eda SH |
946 | }; |
947 | ||
d41fcc67 RD |
948 | enum ib_srq_attr_mask { |
949 | IB_SRQ_MAX_WR = 1 << 0, | |
950 | IB_SRQ_LIMIT = 1 << 1, | |
951 | }; | |
952 | ||
953 | struct ib_srq_attr { | |
954 | u32 max_wr; | |
955 | u32 max_sge; | |
956 | u32 srq_limit; | |
957 | }; | |
958 | ||
959 | struct ib_srq_init_attr { | |
960 | void (*event_handler)(struct ib_event *, void *); | |
961 | void *srq_context; | |
962 | struct ib_srq_attr attr; | |
96104eda | 963 | enum ib_srq_type srq_type; |
418d5130 SH |
964 | |
965 | union { | |
966 | struct { | |
967 | struct ib_xrcd *xrcd; | |
968 | struct ib_cq *cq; | |
969 | } xrc; | |
970 | } ext; | |
d41fcc67 RD |
971 | }; |
972 | ||
1da177e4 LT |
973 | struct ib_qp_cap { |
974 | u32 max_send_wr; | |
975 | u32 max_recv_wr; | |
976 | u32 max_send_sge; | |
977 | u32 max_recv_sge; | |
978 | u32 max_inline_data; | |
a060b562 CH |
979 | |
980 | /* | |
981 | * Maximum number of rdma_rw_ctx structures in flight at a time. | |
982 | * ib_create_qp() will calculate the right amount of neededed WRs | |
983 | * and MRs based on this. | |
984 | */ | |
985 | u32 max_rdma_ctxs; | |
1da177e4 LT |
986 | }; |
987 | ||
988 | enum ib_sig_type { | |
989 | IB_SIGNAL_ALL_WR, | |
990 | IB_SIGNAL_REQ_WR | |
991 | }; | |
992 | ||
993 | enum ib_qp_type { | |
994 | /* | |
995 | * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries | |
996 | * here (and in that order) since the MAD layer uses them as | |
997 | * indices into a 2-entry table. | |
998 | */ | |
999 | IB_QPT_SMI, | |
1000 | IB_QPT_GSI, | |
1001 | ||
1002 | IB_QPT_RC, | |
1003 | IB_QPT_UC, | |
1004 | IB_QPT_UD, | |
1005 | IB_QPT_RAW_IPV6, | |
b42b63cf | 1006 | IB_QPT_RAW_ETHERTYPE, |
c938a616 | 1007 | IB_QPT_RAW_PACKET = 8, |
b42b63cf SH |
1008 | IB_QPT_XRC_INI = 9, |
1009 | IB_QPT_XRC_TGT, | |
0134f16b JM |
1010 | IB_QPT_MAX, |
1011 | /* Reserve a range for qp types internal to the low level driver. | |
1012 | * These qp types will not be visible at the IB core layer, so the | |
1013 | * IB_QPT_MAX usages should not be affected in the core layer | |
1014 | */ | |
1015 | IB_QPT_RESERVED1 = 0x1000, | |
1016 | IB_QPT_RESERVED2, | |
1017 | IB_QPT_RESERVED3, | |
1018 | IB_QPT_RESERVED4, | |
1019 | IB_QPT_RESERVED5, | |
1020 | IB_QPT_RESERVED6, | |
1021 | IB_QPT_RESERVED7, | |
1022 | IB_QPT_RESERVED8, | |
1023 | IB_QPT_RESERVED9, | |
1024 | IB_QPT_RESERVED10, | |
1da177e4 LT |
1025 | }; |
1026 | ||
b846f25a | 1027 | enum ib_qp_create_flags { |
47ee1b9f RL |
1028 | IB_QP_CREATE_IPOIB_UD_LSO = 1 << 0, |
1029 | IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK = 1 << 1, | |
8a06ce59 LR |
1030 | IB_QP_CREATE_CROSS_CHANNEL = 1 << 2, |
1031 | IB_QP_CREATE_MANAGED_SEND = 1 << 3, | |
1032 | IB_QP_CREATE_MANAGED_RECV = 1 << 4, | |
90f1d1b4 | 1033 | IB_QP_CREATE_NETIF_QP = 1 << 5, |
1b01d335 | 1034 | IB_QP_CREATE_SIGNATURE_EN = 1 << 6, |
09b93088 | 1035 | IB_QP_CREATE_USE_GFP_NOIO = 1 << 7, |
b531b909 | 1036 | IB_QP_CREATE_SCATTER_FCS = 1 << 8, |
9c2b270e | 1037 | IB_QP_CREATE_CVLAN_STRIPPING = 1 << 9, |
d2b57063 JM |
1038 | /* reserve bits 26-31 for low level drivers' internal use */ |
1039 | IB_QP_CREATE_RESERVED_START = 1 << 26, | |
1040 | IB_QP_CREATE_RESERVED_END = 1 << 31, | |
b846f25a EC |
1041 | }; |
1042 | ||
73c40c61 YH |
1043 | /* |
1044 | * Note: users may not call ib_close_qp or ib_destroy_qp from the event_handler | |
1045 | * callback to destroy the passed in QP. | |
1046 | */ | |
1047 | ||
1da177e4 LT |
1048 | struct ib_qp_init_attr { |
1049 | void (*event_handler)(struct ib_event *, void *); | |
1050 | void *qp_context; | |
1051 | struct ib_cq *send_cq; | |
1052 | struct ib_cq *recv_cq; | |
1053 | struct ib_srq *srq; | |
b42b63cf | 1054 | struct ib_xrcd *xrcd; /* XRC TGT QPs only */ |
1da177e4 LT |
1055 | struct ib_qp_cap cap; |
1056 | enum ib_sig_type sq_sig_type; | |
1057 | enum ib_qp_type qp_type; | |
b846f25a | 1058 | enum ib_qp_create_flags create_flags; |
a060b562 CH |
1059 | |
1060 | /* | |
1061 | * Only needed for special QP types, or when using the RW API. | |
1062 | */ | |
1063 | u8 port_num; | |
a9017e23 | 1064 | struct ib_rwq_ind_table *rwq_ind_tbl; |
1da177e4 LT |
1065 | }; |
1066 | ||
0e0ec7e0 SH |
1067 | struct ib_qp_open_attr { |
1068 | void (*event_handler)(struct ib_event *, void *); | |
1069 | void *qp_context; | |
1070 | u32 qp_num; | |
1071 | enum ib_qp_type qp_type; | |
1072 | }; | |
1073 | ||
1da177e4 LT |
1074 | enum ib_rnr_timeout { |
1075 | IB_RNR_TIMER_655_36 = 0, | |
1076 | IB_RNR_TIMER_000_01 = 1, | |
1077 | IB_RNR_TIMER_000_02 = 2, | |
1078 | IB_RNR_TIMER_000_03 = 3, | |
1079 | IB_RNR_TIMER_000_04 = 4, | |
1080 | IB_RNR_TIMER_000_06 = 5, | |
1081 | IB_RNR_TIMER_000_08 = 6, | |
1082 | IB_RNR_TIMER_000_12 = 7, | |
1083 | IB_RNR_TIMER_000_16 = 8, | |
1084 | IB_RNR_TIMER_000_24 = 9, | |
1085 | IB_RNR_TIMER_000_32 = 10, | |
1086 | IB_RNR_TIMER_000_48 = 11, | |
1087 | IB_RNR_TIMER_000_64 = 12, | |
1088 | IB_RNR_TIMER_000_96 = 13, | |
1089 | IB_RNR_TIMER_001_28 = 14, | |
1090 | IB_RNR_TIMER_001_92 = 15, | |
1091 | IB_RNR_TIMER_002_56 = 16, | |
1092 | IB_RNR_TIMER_003_84 = 17, | |
1093 | IB_RNR_TIMER_005_12 = 18, | |
1094 | IB_RNR_TIMER_007_68 = 19, | |
1095 | IB_RNR_TIMER_010_24 = 20, | |
1096 | IB_RNR_TIMER_015_36 = 21, | |
1097 | IB_RNR_TIMER_020_48 = 22, | |
1098 | IB_RNR_TIMER_030_72 = 23, | |
1099 | IB_RNR_TIMER_040_96 = 24, | |
1100 | IB_RNR_TIMER_061_44 = 25, | |
1101 | IB_RNR_TIMER_081_92 = 26, | |
1102 | IB_RNR_TIMER_122_88 = 27, | |
1103 | IB_RNR_TIMER_163_84 = 28, | |
1104 | IB_RNR_TIMER_245_76 = 29, | |
1105 | IB_RNR_TIMER_327_68 = 30, | |
1106 | IB_RNR_TIMER_491_52 = 31 | |
1107 | }; | |
1108 | ||
1109 | enum ib_qp_attr_mask { | |
1110 | IB_QP_STATE = 1, | |
1111 | IB_QP_CUR_STATE = (1<<1), | |
1112 | IB_QP_EN_SQD_ASYNC_NOTIFY = (1<<2), | |
1113 | IB_QP_ACCESS_FLAGS = (1<<3), | |
1114 | IB_QP_PKEY_INDEX = (1<<4), | |
1115 | IB_QP_PORT = (1<<5), | |
1116 | IB_QP_QKEY = (1<<6), | |
1117 | IB_QP_AV = (1<<7), | |
1118 | IB_QP_PATH_MTU = (1<<8), | |
1119 | IB_QP_TIMEOUT = (1<<9), | |
1120 | IB_QP_RETRY_CNT = (1<<10), | |
1121 | IB_QP_RNR_RETRY = (1<<11), | |
1122 | IB_QP_RQ_PSN = (1<<12), | |
1123 | IB_QP_MAX_QP_RD_ATOMIC = (1<<13), | |
1124 | IB_QP_ALT_PATH = (1<<14), | |
1125 | IB_QP_MIN_RNR_TIMER = (1<<15), | |
1126 | IB_QP_SQ_PSN = (1<<16), | |
1127 | IB_QP_MAX_DEST_RD_ATOMIC = (1<<17), | |
1128 | IB_QP_PATH_MIG_STATE = (1<<18), | |
1129 | IB_QP_CAP = (1<<19), | |
dd5f03be | 1130 | IB_QP_DEST_QPN = (1<<20), |
aa744cc0 MB |
1131 | IB_QP_RESERVED1 = (1<<21), |
1132 | IB_QP_RESERVED2 = (1<<22), | |
1133 | IB_QP_RESERVED3 = (1<<23), | |
1134 | IB_QP_RESERVED4 = (1<<24), | |
528e5a1b | 1135 | IB_QP_RATE_LIMIT = (1<<25), |
1da177e4 LT |
1136 | }; |
1137 | ||
1138 | enum ib_qp_state { | |
1139 | IB_QPS_RESET, | |
1140 | IB_QPS_INIT, | |
1141 | IB_QPS_RTR, | |
1142 | IB_QPS_RTS, | |
1143 | IB_QPS_SQD, | |
1144 | IB_QPS_SQE, | |
1145 | IB_QPS_ERR | |
1146 | }; | |
1147 | ||
1148 | enum ib_mig_state { | |
1149 | IB_MIG_MIGRATED, | |
1150 | IB_MIG_REARM, | |
1151 | IB_MIG_ARMED | |
1152 | }; | |
1153 | ||
7083e42e SM |
1154 | enum ib_mw_type { |
1155 | IB_MW_TYPE_1 = 1, | |
1156 | IB_MW_TYPE_2 = 2 | |
1157 | }; | |
1158 | ||
1da177e4 LT |
1159 | struct ib_qp_attr { |
1160 | enum ib_qp_state qp_state; | |
1161 | enum ib_qp_state cur_qp_state; | |
1162 | enum ib_mtu path_mtu; | |
1163 | enum ib_mig_state path_mig_state; | |
1164 | u32 qkey; | |
1165 | u32 rq_psn; | |
1166 | u32 sq_psn; | |
1167 | u32 dest_qp_num; | |
1168 | int qp_access_flags; | |
1169 | struct ib_qp_cap cap; | |
90898850 DC |
1170 | struct rdma_ah_attr ah_attr; |
1171 | struct rdma_ah_attr alt_ah_attr; | |
1da177e4 LT |
1172 | u16 pkey_index; |
1173 | u16 alt_pkey_index; | |
1174 | u8 en_sqd_async_notify; | |
1175 | u8 sq_draining; | |
1176 | u8 max_rd_atomic; | |
1177 | u8 max_dest_rd_atomic; | |
1178 | u8 min_rnr_timer; | |
1179 | u8 port_num; | |
1180 | u8 timeout; | |
1181 | u8 retry_cnt; | |
1182 | u8 rnr_retry; | |
1183 | u8 alt_port_num; | |
1184 | u8 alt_timeout; | |
528e5a1b | 1185 | u32 rate_limit; |
1da177e4 LT |
1186 | }; |
1187 | ||
1188 | enum ib_wr_opcode { | |
1189 | IB_WR_RDMA_WRITE, | |
1190 | IB_WR_RDMA_WRITE_WITH_IMM, | |
1191 | IB_WR_SEND, | |
1192 | IB_WR_SEND_WITH_IMM, | |
1193 | IB_WR_RDMA_READ, | |
1194 | IB_WR_ATOMIC_CMP_AND_SWP, | |
c93570f2 | 1195 | IB_WR_ATOMIC_FETCH_AND_ADD, |
0f39cf3d RD |
1196 | IB_WR_LSO, |
1197 | IB_WR_SEND_WITH_INV, | |
00f7ec36 SW |
1198 | IB_WR_RDMA_READ_WITH_INV, |
1199 | IB_WR_LOCAL_INV, | |
4c67e2bf | 1200 | IB_WR_REG_MR, |
5e80ba8f VS |
1201 | IB_WR_MASKED_ATOMIC_CMP_AND_SWP, |
1202 | IB_WR_MASKED_ATOMIC_FETCH_AND_ADD, | |
1b01d335 | 1203 | IB_WR_REG_SIG_MR, |
0134f16b JM |
1204 | /* reserve values for low level drivers' internal use. |
1205 | * These values will not be used at all in the ib core layer. | |
1206 | */ | |
1207 | IB_WR_RESERVED1 = 0xf0, | |
1208 | IB_WR_RESERVED2, | |
1209 | IB_WR_RESERVED3, | |
1210 | IB_WR_RESERVED4, | |
1211 | IB_WR_RESERVED5, | |
1212 | IB_WR_RESERVED6, | |
1213 | IB_WR_RESERVED7, | |
1214 | IB_WR_RESERVED8, | |
1215 | IB_WR_RESERVED9, | |
1216 | IB_WR_RESERVED10, | |
1da177e4 LT |
1217 | }; |
1218 | ||
1219 | enum ib_send_flags { | |
1220 | IB_SEND_FENCE = 1, | |
1221 | IB_SEND_SIGNALED = (1<<1), | |
1222 | IB_SEND_SOLICITED = (1<<2), | |
e0605d91 | 1223 | IB_SEND_INLINE = (1<<3), |
0134f16b JM |
1224 | IB_SEND_IP_CSUM = (1<<4), |
1225 | ||
1226 | /* reserve bits 26-31 for low level drivers' internal use */ | |
1227 | IB_SEND_RESERVED_START = (1 << 26), | |
1228 | IB_SEND_RESERVED_END = (1 << 31), | |
1da177e4 LT |
1229 | }; |
1230 | ||
1231 | struct ib_sge { | |
1232 | u64 addr; | |
1233 | u32 length; | |
1234 | u32 lkey; | |
1235 | }; | |
1236 | ||
14d3a3b2 CH |
1237 | struct ib_cqe { |
1238 | void (*done)(struct ib_cq *cq, struct ib_wc *wc); | |
1239 | }; | |
1240 | ||
1da177e4 LT |
1241 | struct ib_send_wr { |
1242 | struct ib_send_wr *next; | |
14d3a3b2 CH |
1243 | union { |
1244 | u64 wr_id; | |
1245 | struct ib_cqe *wr_cqe; | |
1246 | }; | |
1da177e4 LT |
1247 | struct ib_sge *sg_list; |
1248 | int num_sge; | |
1249 | enum ib_wr_opcode opcode; | |
1250 | int send_flags; | |
0f39cf3d RD |
1251 | union { |
1252 | __be32 imm_data; | |
1253 | u32 invalidate_rkey; | |
1254 | } ex; | |
1da177e4 LT |
1255 | }; |
1256 | ||
e622f2f4 CH |
1257 | struct ib_rdma_wr { |
1258 | struct ib_send_wr wr; | |
1259 | u64 remote_addr; | |
1260 | u32 rkey; | |
1261 | }; | |
1262 | ||
1263 | static inline struct ib_rdma_wr *rdma_wr(struct ib_send_wr *wr) | |
1264 | { | |
1265 | return container_of(wr, struct ib_rdma_wr, wr); | |
1266 | } | |
1267 | ||
1268 | struct ib_atomic_wr { | |
1269 | struct ib_send_wr wr; | |
1270 | u64 remote_addr; | |
1271 | u64 compare_add; | |
1272 | u64 swap; | |
1273 | u64 compare_add_mask; | |
1274 | u64 swap_mask; | |
1275 | u32 rkey; | |
1276 | }; | |
1277 | ||
1278 | static inline struct ib_atomic_wr *atomic_wr(struct ib_send_wr *wr) | |
1279 | { | |
1280 | return container_of(wr, struct ib_atomic_wr, wr); | |
1281 | } | |
1282 | ||
1283 | struct ib_ud_wr { | |
1284 | struct ib_send_wr wr; | |
1285 | struct ib_ah *ah; | |
1286 | void *header; | |
1287 | int hlen; | |
1288 | int mss; | |
1289 | u32 remote_qpn; | |
1290 | u32 remote_qkey; | |
1291 | u16 pkey_index; /* valid for GSI only */ | |
1292 | u8 port_num; /* valid for DR SMPs on switch only */ | |
1293 | }; | |
1294 | ||
1295 | static inline struct ib_ud_wr *ud_wr(struct ib_send_wr *wr) | |
1296 | { | |
1297 | return container_of(wr, struct ib_ud_wr, wr); | |
1298 | } | |
1299 | ||
4c67e2bf SG |
1300 | struct ib_reg_wr { |
1301 | struct ib_send_wr wr; | |
1302 | struct ib_mr *mr; | |
1303 | u32 key; | |
1304 | int access; | |
1305 | }; | |
1306 | ||
1307 | static inline struct ib_reg_wr *reg_wr(struct ib_send_wr *wr) | |
1308 | { | |
1309 | return container_of(wr, struct ib_reg_wr, wr); | |
1310 | } | |
1311 | ||
e622f2f4 CH |
1312 | struct ib_sig_handover_wr { |
1313 | struct ib_send_wr wr; | |
1314 | struct ib_sig_attrs *sig_attrs; | |
1315 | struct ib_mr *sig_mr; | |
1316 | int access_flags; | |
1317 | struct ib_sge *prot; | |
1318 | }; | |
1319 | ||
1320 | static inline struct ib_sig_handover_wr *sig_handover_wr(struct ib_send_wr *wr) | |
1321 | { | |
1322 | return container_of(wr, struct ib_sig_handover_wr, wr); | |
1323 | } | |
1324 | ||
1da177e4 LT |
1325 | struct ib_recv_wr { |
1326 | struct ib_recv_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 | }; | |
1334 | ||
1335 | enum ib_access_flags { | |
1336 | IB_ACCESS_LOCAL_WRITE = 1, | |
1337 | IB_ACCESS_REMOTE_WRITE = (1<<1), | |
1338 | IB_ACCESS_REMOTE_READ = (1<<2), | |
1339 | IB_ACCESS_REMOTE_ATOMIC = (1<<3), | |
7083e42e | 1340 | IB_ACCESS_MW_BIND = (1<<4), |
860f10a7 SG |
1341 | IB_ZERO_BASED = (1<<5), |
1342 | IB_ACCESS_ON_DEMAND = (1<<6), | |
0008b84e | 1343 | IB_ACCESS_HUGETLB = (1<<7), |
1da177e4 LT |
1344 | }; |
1345 | ||
b7d3e0a9 CH |
1346 | /* |
1347 | * XXX: these are apparently used for ->rereg_user_mr, no idea why they | |
1348 | * are hidden here instead of a uapi header! | |
1349 | */ | |
1da177e4 LT |
1350 | enum ib_mr_rereg_flags { |
1351 | IB_MR_REREG_TRANS = 1, | |
1352 | IB_MR_REREG_PD = (1<<1), | |
7e6edb9b MB |
1353 | IB_MR_REREG_ACCESS = (1<<2), |
1354 | IB_MR_REREG_SUPPORTED = ((IB_MR_REREG_ACCESS << 1) - 1) | |
1da177e4 LT |
1355 | }; |
1356 | ||
1da177e4 LT |
1357 | struct ib_fmr_attr { |
1358 | int max_pages; | |
1359 | int max_maps; | |
d36f34aa | 1360 | u8 page_shift; |
1da177e4 LT |
1361 | }; |
1362 | ||
882214e2 HE |
1363 | struct ib_umem; |
1364 | ||
38321256 MB |
1365 | enum rdma_remove_reason { |
1366 | /* Userspace requested uobject deletion. Call could fail */ | |
1367 | RDMA_REMOVE_DESTROY, | |
1368 | /* Context deletion. This call should delete the actual object itself */ | |
1369 | RDMA_REMOVE_CLOSE, | |
1370 | /* Driver is being hot-unplugged. This call should delete the actual object itself */ | |
1371 | RDMA_REMOVE_DRIVER_REMOVE, | |
1372 | /* Context is being cleaned-up, but commit was just completed */ | |
1373 | RDMA_REMOVE_DURING_CLEANUP, | |
1374 | }; | |
1375 | ||
43579b5f PP |
1376 | struct ib_rdmacg_object { |
1377 | #ifdef CONFIG_CGROUP_RDMA | |
1378 | struct rdma_cgroup *cg; /* owner rdma cgroup */ | |
1379 | #endif | |
1380 | }; | |
1381 | ||
e2773c06 RD |
1382 | struct ib_ucontext { |
1383 | struct ib_device *device; | |
771addf6 | 1384 | struct ib_uverbs_file *ufile; |
f7c6a7b5 | 1385 | int closing; |
8ada2c1c | 1386 | |
38321256 MB |
1387 | /* locking the uobjects_list */ |
1388 | struct mutex uobjects_lock; | |
1389 | struct list_head uobjects; | |
1390 | /* protects cleanup process from other actions */ | |
1391 | struct rw_semaphore cleanup_rwsem; | |
1392 | enum rdma_remove_reason cleanup_reason; | |
1393 | ||
8ada2c1c | 1394 | struct pid *tgid; |
882214e2 HE |
1395 | #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING |
1396 | struct rb_root umem_tree; | |
1397 | /* | |
1398 | * Protects .umem_rbroot and tree, as well as odp_mrs_count and | |
1399 | * mmu notifiers registration. | |
1400 | */ | |
1401 | struct rw_semaphore umem_rwsem; | |
1402 | void (*invalidate_range)(struct ib_umem *umem, | |
1403 | unsigned long start, unsigned long end); | |
1404 | ||
1405 | struct mmu_notifier mn; | |
1406 | atomic_t notifier_count; | |
1407 | /* A list of umems that don't have private mmu notifier counters yet. */ | |
1408 | struct list_head no_private_counters; | |
1409 | int odp_mrs_count; | |
1410 | #endif | |
43579b5f PP |
1411 | |
1412 | struct ib_rdmacg_object cg_obj; | |
e2773c06 RD |
1413 | }; |
1414 | ||
1415 | struct ib_uobject { | |
1416 | u64 user_handle; /* handle given to us by userspace */ | |
1417 | struct ib_ucontext *context; /* associated user context */ | |
9ead190b | 1418 | void *object; /* containing object */ |
e2773c06 | 1419 | struct list_head list; /* link to context's list */ |
43579b5f | 1420 | struct ib_rdmacg_object cg_obj; /* rdmacg object */ |
b3d636b0 | 1421 | int id; /* index into kernel idr */ |
9ead190b | 1422 | struct kref ref; |
38321256 | 1423 | atomic_t usecnt; /* protects exclusive access */ |
d144da8c | 1424 | struct rcu_head rcu; /* kfree_rcu() overhead */ |
38321256 MB |
1425 | |
1426 | const struct uverbs_obj_type *type; | |
e2773c06 RD |
1427 | }; |
1428 | ||
cf8966b3 MB |
1429 | struct ib_uobject_file { |
1430 | struct ib_uobject uobj; | |
1431 | /* ufile contains the lock between context release and file close */ | |
1432 | struct ib_uverbs_file *ufile; | |
e2773c06 RD |
1433 | }; |
1434 | ||
e2773c06 | 1435 | struct ib_udata { |
309243ec | 1436 | const void __user *inbuf; |
e2773c06 RD |
1437 | void __user *outbuf; |
1438 | size_t inlen; | |
1439 | size_t outlen; | |
1440 | }; | |
1441 | ||
1da177e4 | 1442 | struct ib_pd { |
96249d70 | 1443 | u32 local_dma_lkey; |
ed082d36 | 1444 | u32 flags; |
e2773c06 RD |
1445 | struct ib_device *device; |
1446 | struct ib_uobject *uobject; | |
1447 | atomic_t usecnt; /* count all resources */ | |
50d46335 | 1448 | |
ed082d36 CH |
1449 | u32 unsafe_global_rkey; |
1450 | ||
50d46335 CH |
1451 | /* |
1452 | * Implementation details of the RDMA core, don't use in drivers: | |
1453 | */ | |
1454 | struct ib_mr *__internal_mr; | |
1da177e4 LT |
1455 | }; |
1456 | ||
59991f94 SH |
1457 | struct ib_xrcd { |
1458 | struct ib_device *device; | |
d3d72d90 | 1459 | atomic_t usecnt; /* count all exposed resources */ |
53d0bd1e | 1460 | struct inode *inode; |
d3d72d90 SH |
1461 | |
1462 | struct mutex tgt_qp_mutex; | |
1463 | struct list_head tgt_qp_list; | |
59991f94 SH |
1464 | }; |
1465 | ||
1da177e4 LT |
1466 | struct ib_ah { |
1467 | struct ib_device *device; | |
1468 | struct ib_pd *pd; | |
e2773c06 | 1469 | struct ib_uobject *uobject; |
1da177e4 LT |
1470 | }; |
1471 | ||
1472 | typedef void (*ib_comp_handler)(struct ib_cq *cq, void *cq_context); | |
1473 | ||
14d3a3b2 CH |
1474 | enum ib_poll_context { |
1475 | IB_POLL_DIRECT, /* caller context, no hw completions */ | |
1476 | IB_POLL_SOFTIRQ, /* poll from softirq context */ | |
1477 | IB_POLL_WORKQUEUE, /* poll from workqueue */ | |
1478 | }; | |
1479 | ||
1da177e4 | 1480 | struct ib_cq { |
e2773c06 RD |
1481 | struct ib_device *device; |
1482 | struct ib_uobject *uobject; | |
1483 | ib_comp_handler comp_handler; | |
1484 | void (*event_handler)(struct ib_event *, void *); | |
4deccd6d | 1485 | void *cq_context; |
e2773c06 RD |
1486 | int cqe; |
1487 | atomic_t usecnt; /* count number of work queues */ | |
14d3a3b2 CH |
1488 | enum ib_poll_context poll_ctx; |
1489 | struct ib_wc *wc; | |
1490 | union { | |
1491 | struct irq_poll iop; | |
1492 | struct work_struct work; | |
1493 | }; | |
1da177e4 LT |
1494 | }; |
1495 | ||
1496 | struct ib_srq { | |
d41fcc67 RD |
1497 | struct ib_device *device; |
1498 | struct ib_pd *pd; | |
1499 | struct ib_uobject *uobject; | |
1500 | void (*event_handler)(struct ib_event *, void *); | |
1501 | void *srq_context; | |
96104eda | 1502 | enum ib_srq_type srq_type; |
1da177e4 | 1503 | atomic_t usecnt; |
418d5130 SH |
1504 | |
1505 | union { | |
1506 | struct { | |
1507 | struct ib_xrcd *xrcd; | |
1508 | struct ib_cq *cq; | |
1509 | u32 srq_num; | |
1510 | } xrc; | |
1511 | } ext; | |
1da177e4 LT |
1512 | }; |
1513 | ||
ebaaee25 NO |
1514 | enum ib_raw_packet_caps { |
1515 | /* Strip cvlan from incoming packet and report it in the matching work | |
1516 | * completion is supported. | |
1517 | */ | |
1518 | IB_RAW_PACKET_CAP_CVLAN_STRIPPING = (1 << 0), | |
1519 | /* Scatter FCS field of an incoming packet to host memory is supported. | |
1520 | */ | |
1521 | IB_RAW_PACKET_CAP_SCATTER_FCS = (1 << 1), | |
1522 | /* Checksum offloads are supported (for both send and receive). */ | |
1523 | IB_RAW_PACKET_CAP_IP_CSUM = (1 << 2), | |
1524 | }; | |
1525 | ||
5fd251c8 YH |
1526 | enum ib_wq_type { |
1527 | IB_WQT_RQ | |
1528 | }; | |
1529 | ||
1530 | enum ib_wq_state { | |
1531 | IB_WQS_RESET, | |
1532 | IB_WQS_RDY, | |
1533 | IB_WQS_ERR | |
1534 | }; | |
1535 | ||
1536 | struct ib_wq { | |
1537 | struct ib_device *device; | |
1538 | struct ib_uobject *uobject; | |
1539 | void *wq_context; | |
1540 | void (*event_handler)(struct ib_event *, void *); | |
1541 | struct ib_pd *pd; | |
1542 | struct ib_cq *cq; | |
1543 | u32 wq_num; | |
1544 | enum ib_wq_state state; | |
1545 | enum ib_wq_type wq_type; | |
1546 | atomic_t usecnt; | |
1547 | }; | |
1548 | ||
10bac72b NO |
1549 | enum ib_wq_flags { |
1550 | IB_WQ_FLAGS_CVLAN_STRIPPING = 1 << 0, | |
27b0df11 | 1551 | IB_WQ_FLAGS_SCATTER_FCS = 1 << 1, |
10bac72b NO |
1552 | }; |
1553 | ||
5fd251c8 YH |
1554 | struct ib_wq_init_attr { |
1555 | void *wq_context; | |
1556 | enum ib_wq_type wq_type; | |
1557 | u32 max_wr; | |
1558 | u32 max_sge; | |
1559 | struct ib_cq *cq; | |
1560 | void (*event_handler)(struct ib_event *, void *); | |
10bac72b | 1561 | u32 create_flags; /* Use enum ib_wq_flags */ |
5fd251c8 YH |
1562 | }; |
1563 | ||
1564 | enum ib_wq_attr_mask { | |
10bac72b NO |
1565 | IB_WQ_STATE = 1 << 0, |
1566 | IB_WQ_CUR_STATE = 1 << 1, | |
1567 | IB_WQ_FLAGS = 1 << 2, | |
5fd251c8 YH |
1568 | }; |
1569 | ||
1570 | struct ib_wq_attr { | |
1571 | enum ib_wq_state wq_state; | |
1572 | enum ib_wq_state curr_wq_state; | |
10bac72b NO |
1573 | u32 flags; /* Use enum ib_wq_flags */ |
1574 | u32 flags_mask; /* Use enum ib_wq_flags */ | |
5fd251c8 YH |
1575 | }; |
1576 | ||
6d39786b YH |
1577 | struct ib_rwq_ind_table { |
1578 | struct ib_device *device; | |
1579 | struct ib_uobject *uobject; | |
1580 | atomic_t usecnt; | |
1581 | u32 ind_tbl_num; | |
1582 | u32 log_ind_tbl_size; | |
1583 | struct ib_wq **ind_tbl; | |
1584 | }; | |
1585 | ||
1586 | struct ib_rwq_ind_table_init_attr { | |
1587 | u32 log_ind_tbl_size; | |
1588 | /* Each entry is a pointer to Receive Work Queue */ | |
1589 | struct ib_wq **ind_tbl; | |
1590 | }; | |
1591 | ||
632bc3f6 BVA |
1592 | /* |
1593 | * @max_write_sge: Maximum SGE elements per RDMA WRITE request. | |
1594 | * @max_read_sge: Maximum SGE elements per RDMA READ request. | |
1595 | */ | |
1da177e4 LT |
1596 | struct ib_qp { |
1597 | struct ib_device *device; | |
1598 | struct ib_pd *pd; | |
1599 | struct ib_cq *send_cq; | |
1600 | struct ib_cq *recv_cq; | |
fffb0383 CH |
1601 | spinlock_t mr_lock; |
1602 | int mrs_used; | |
a060b562 | 1603 | struct list_head rdma_mrs; |
0e353e34 | 1604 | struct list_head sig_mrs; |
1da177e4 | 1605 | struct ib_srq *srq; |
b42b63cf | 1606 | struct ib_xrcd *xrcd; /* XRC TGT QPs only */ |
d3d72d90 | 1607 | struct list_head xrcd_list; |
fffb0383 | 1608 | |
319a441d HHZ |
1609 | /* count times opened, mcast attaches, flow attaches */ |
1610 | atomic_t usecnt; | |
0e0ec7e0 SH |
1611 | struct list_head open_list; |
1612 | struct ib_qp *real_qp; | |
e2773c06 | 1613 | struct ib_uobject *uobject; |
1da177e4 LT |
1614 | void (*event_handler)(struct ib_event *, void *); |
1615 | void *qp_context; | |
1616 | u32 qp_num; | |
632bc3f6 BVA |
1617 | u32 max_write_sge; |
1618 | u32 max_read_sge; | |
1da177e4 | 1619 | enum ib_qp_type qp_type; |
a9017e23 | 1620 | struct ib_rwq_ind_table *rwq_ind_tbl; |
1da177e4 LT |
1621 | }; |
1622 | ||
1623 | struct ib_mr { | |
e2773c06 RD |
1624 | struct ib_device *device; |
1625 | struct ib_pd *pd; | |
e2773c06 RD |
1626 | u32 lkey; |
1627 | u32 rkey; | |
4c67e2bf SG |
1628 | u64 iova; |
1629 | u32 length; | |
1630 | unsigned int page_size; | |
d4a85c30 | 1631 | bool need_inval; |
fffb0383 CH |
1632 | union { |
1633 | struct ib_uobject *uobject; /* user */ | |
1634 | struct list_head qp_entry; /* FR */ | |
1635 | }; | |
1da177e4 LT |
1636 | }; |
1637 | ||
1638 | struct ib_mw { | |
1639 | struct ib_device *device; | |
1640 | struct ib_pd *pd; | |
e2773c06 | 1641 | struct ib_uobject *uobject; |
1da177e4 | 1642 | u32 rkey; |
7083e42e | 1643 | enum ib_mw_type type; |
1da177e4 LT |
1644 | }; |
1645 | ||
1646 | struct ib_fmr { | |
1647 | struct ib_device *device; | |
1648 | struct ib_pd *pd; | |
1649 | struct list_head list; | |
1650 | u32 lkey; | |
1651 | u32 rkey; | |
1652 | }; | |
1653 | ||
319a441d HHZ |
1654 | /* Supported steering options */ |
1655 | enum ib_flow_attr_type { | |
1656 | /* steering according to rule specifications */ | |
1657 | IB_FLOW_ATTR_NORMAL = 0x0, | |
1658 | /* default unicast and multicast rule - | |
1659 | * receive all Eth traffic which isn't steered to any QP | |
1660 | */ | |
1661 | IB_FLOW_ATTR_ALL_DEFAULT = 0x1, | |
1662 | /* default multicast rule - | |
1663 | * receive all Eth multicast traffic which isn't steered to any QP | |
1664 | */ | |
1665 | IB_FLOW_ATTR_MC_DEFAULT = 0x2, | |
1666 | /* sniffer rule - receive all port traffic */ | |
1667 | IB_FLOW_ATTR_SNIFFER = 0x3 | |
1668 | }; | |
1669 | ||
1670 | /* Supported steering header types */ | |
1671 | enum ib_flow_spec_type { | |
1672 | /* L2 headers*/ | |
76bd23b3 MR |
1673 | IB_FLOW_SPEC_ETH = 0x20, |
1674 | IB_FLOW_SPEC_IB = 0x22, | |
319a441d | 1675 | /* L3 header*/ |
76bd23b3 MR |
1676 | IB_FLOW_SPEC_IPV4 = 0x30, |
1677 | IB_FLOW_SPEC_IPV6 = 0x31, | |
319a441d | 1678 | /* L4 headers*/ |
76bd23b3 MR |
1679 | IB_FLOW_SPEC_TCP = 0x40, |
1680 | IB_FLOW_SPEC_UDP = 0x41, | |
0dbf3332 | 1681 | IB_FLOW_SPEC_VXLAN_TUNNEL = 0x50, |
fbf46860 | 1682 | IB_FLOW_SPEC_INNER = 0x100, |
460d0198 MR |
1683 | /* Actions */ |
1684 | IB_FLOW_SPEC_ACTION_TAG = 0x1000, | |
483a3966 | 1685 | IB_FLOW_SPEC_ACTION_DROP = 0x1001, |
319a441d | 1686 | }; |
240ae00e | 1687 | #define IB_FLOW_SPEC_LAYER_MASK 0xF0 |
fbf46860 | 1688 | #define IB_FLOW_SPEC_SUPPORT_LAYERS 8 |
22878dbc | 1689 | |
319a441d HHZ |
1690 | /* Flow steering rule priority is set according to it's domain. |
1691 | * Lower domain value means higher priority. | |
1692 | */ | |
1693 | enum ib_flow_domain { | |
1694 | IB_FLOW_DOMAIN_USER, | |
1695 | IB_FLOW_DOMAIN_ETHTOOL, | |
1696 | IB_FLOW_DOMAIN_RFS, | |
1697 | IB_FLOW_DOMAIN_NIC, | |
1698 | IB_FLOW_DOMAIN_NUM /* Must be last */ | |
1699 | }; | |
1700 | ||
a3100a78 MV |
1701 | enum ib_flow_flags { |
1702 | IB_FLOW_ATTR_FLAGS_DONT_TRAP = 1UL << 1, /* Continue match, no steal */ | |
1703 | IB_FLOW_ATTR_FLAGS_RESERVED = 1UL << 2 /* Must be last */ | |
1704 | }; | |
1705 | ||
319a441d HHZ |
1706 | struct ib_flow_eth_filter { |
1707 | u8 dst_mac[6]; | |
1708 | u8 src_mac[6]; | |
1709 | __be16 ether_type; | |
1710 | __be16 vlan_tag; | |
15dfbd6b MG |
1711 | /* Must be last */ |
1712 | u8 real_sz[0]; | |
319a441d HHZ |
1713 | }; |
1714 | ||
1715 | struct ib_flow_spec_eth { | |
fbf46860 | 1716 | u32 type; |
319a441d HHZ |
1717 | u16 size; |
1718 | struct ib_flow_eth_filter val; | |
1719 | struct ib_flow_eth_filter mask; | |
1720 | }; | |
1721 | ||
240ae00e MB |
1722 | struct ib_flow_ib_filter { |
1723 | __be16 dlid; | |
1724 | __u8 sl; | |
15dfbd6b MG |
1725 | /* Must be last */ |
1726 | u8 real_sz[0]; | |
240ae00e MB |
1727 | }; |
1728 | ||
1729 | struct ib_flow_spec_ib { | |
fbf46860 | 1730 | u32 type; |
240ae00e MB |
1731 | u16 size; |
1732 | struct ib_flow_ib_filter val; | |
1733 | struct ib_flow_ib_filter mask; | |
1734 | }; | |
1735 | ||
989a3a8f MG |
1736 | /* IPv4 header flags */ |
1737 | enum ib_ipv4_flags { | |
1738 | IB_IPV4_DONT_FRAG = 0x2, /* Don't enable packet fragmentation */ | |
1739 | IB_IPV4_MORE_FRAG = 0X4 /* For All fragmented packets except the | |
1740 | last have this flag set */ | |
1741 | }; | |
1742 | ||
319a441d HHZ |
1743 | struct ib_flow_ipv4_filter { |
1744 | __be32 src_ip; | |
1745 | __be32 dst_ip; | |
989a3a8f MG |
1746 | u8 proto; |
1747 | u8 tos; | |
1748 | u8 ttl; | |
1749 | u8 flags; | |
15dfbd6b MG |
1750 | /* Must be last */ |
1751 | u8 real_sz[0]; | |
319a441d HHZ |
1752 | }; |
1753 | ||
1754 | struct ib_flow_spec_ipv4 { | |
fbf46860 | 1755 | u32 type; |
319a441d HHZ |
1756 | u16 size; |
1757 | struct ib_flow_ipv4_filter val; | |
1758 | struct ib_flow_ipv4_filter mask; | |
1759 | }; | |
1760 | ||
4c2aae71 MG |
1761 | struct ib_flow_ipv6_filter { |
1762 | u8 src_ip[16]; | |
1763 | u8 dst_ip[16]; | |
a72c6a2b MG |
1764 | __be32 flow_label; |
1765 | u8 next_hdr; | |
1766 | u8 traffic_class; | |
1767 | u8 hop_limit; | |
15dfbd6b MG |
1768 | /* Must be last */ |
1769 | u8 real_sz[0]; | |
4c2aae71 MG |
1770 | }; |
1771 | ||
1772 | struct ib_flow_spec_ipv6 { | |
fbf46860 | 1773 | u32 type; |
4c2aae71 MG |
1774 | u16 size; |
1775 | struct ib_flow_ipv6_filter val; | |
1776 | struct ib_flow_ipv6_filter mask; | |
1777 | }; | |
1778 | ||
319a441d HHZ |
1779 | struct ib_flow_tcp_udp_filter { |
1780 | __be16 dst_port; | |
1781 | __be16 src_port; | |
15dfbd6b MG |
1782 | /* Must be last */ |
1783 | u8 real_sz[0]; | |
319a441d HHZ |
1784 | }; |
1785 | ||
1786 | struct ib_flow_spec_tcp_udp { | |
fbf46860 | 1787 | u32 type; |
319a441d HHZ |
1788 | u16 size; |
1789 | struct ib_flow_tcp_udp_filter val; | |
1790 | struct ib_flow_tcp_udp_filter mask; | |
1791 | }; | |
1792 | ||
0dbf3332 MR |
1793 | struct ib_flow_tunnel_filter { |
1794 | __be32 tunnel_id; | |
1795 | u8 real_sz[0]; | |
1796 | }; | |
1797 | ||
1798 | /* ib_flow_spec_tunnel describes the Vxlan tunnel | |
1799 | * the tunnel_id from val has the vni value | |
1800 | */ | |
1801 | struct ib_flow_spec_tunnel { | |
fbf46860 | 1802 | u32 type; |
0dbf3332 MR |
1803 | u16 size; |
1804 | struct ib_flow_tunnel_filter val; | |
1805 | struct ib_flow_tunnel_filter mask; | |
1806 | }; | |
1807 | ||
460d0198 MR |
1808 | struct ib_flow_spec_action_tag { |
1809 | enum ib_flow_spec_type type; | |
1810 | u16 size; | |
1811 | u32 tag_id; | |
1812 | }; | |
1813 | ||
483a3966 SS |
1814 | struct ib_flow_spec_action_drop { |
1815 | enum ib_flow_spec_type type; | |
1816 | u16 size; | |
1817 | }; | |
1818 | ||
319a441d HHZ |
1819 | union ib_flow_spec { |
1820 | struct { | |
fbf46860 | 1821 | u32 type; |
319a441d HHZ |
1822 | u16 size; |
1823 | }; | |
1824 | struct ib_flow_spec_eth eth; | |
240ae00e | 1825 | struct ib_flow_spec_ib ib; |
319a441d HHZ |
1826 | struct ib_flow_spec_ipv4 ipv4; |
1827 | struct ib_flow_spec_tcp_udp tcp_udp; | |
4c2aae71 | 1828 | struct ib_flow_spec_ipv6 ipv6; |
0dbf3332 | 1829 | struct ib_flow_spec_tunnel tunnel; |
460d0198 | 1830 | struct ib_flow_spec_action_tag flow_tag; |
483a3966 | 1831 | struct ib_flow_spec_action_drop drop; |
319a441d HHZ |
1832 | }; |
1833 | ||
1834 | struct ib_flow_attr { | |
1835 | enum ib_flow_attr_type type; | |
1836 | u16 size; | |
1837 | u16 priority; | |
1838 | u32 flags; | |
1839 | u8 num_of_specs; | |
1840 | u8 port; | |
1841 | /* Following are the optional layers according to user request | |
1842 | * struct ib_flow_spec_xxx | |
1843 | * struct ib_flow_spec_yyy | |
1844 | */ | |
1845 | }; | |
1846 | ||
1847 | struct ib_flow { | |
1848 | struct ib_qp *qp; | |
1849 | struct ib_uobject *uobject; | |
1850 | }; | |
1851 | ||
4cd7c947 | 1852 | struct ib_mad_hdr; |
1da177e4 LT |
1853 | struct ib_grh; |
1854 | ||
1855 | enum ib_process_mad_flags { | |
1856 | IB_MAD_IGNORE_MKEY = 1, | |
1857 | IB_MAD_IGNORE_BKEY = 2, | |
1858 | IB_MAD_IGNORE_ALL = IB_MAD_IGNORE_MKEY | IB_MAD_IGNORE_BKEY | |
1859 | }; | |
1860 | ||
1861 | enum ib_mad_result { | |
1862 | IB_MAD_RESULT_FAILURE = 0, /* (!SUCCESS is the important flag) */ | |
1863 | IB_MAD_RESULT_SUCCESS = 1 << 0, /* MAD was successfully processed */ | |
1864 | IB_MAD_RESULT_REPLY = 1 << 1, /* Reply packet needs to be sent */ | |
1865 | IB_MAD_RESULT_CONSUMED = 1 << 2 /* Packet consumed: stop processing */ | |
1866 | }; | |
1867 | ||
1868 | #define IB_DEVICE_NAME_MAX 64 | |
1869 | ||
21d6454a JW |
1870 | struct ib_port_cache { |
1871 | struct ib_pkey_cache *pkey; | |
1872 | struct ib_gid_table *gid; | |
1873 | u8 lmc; | |
1874 | enum ib_port_state port_state; | |
1875 | }; | |
1876 | ||
1da177e4 LT |
1877 | struct ib_cache { |
1878 | rwlock_t lock; | |
1879 | struct ib_event_handler event_handler; | |
21d6454a | 1880 | struct ib_port_cache *ports; |
1da177e4 LT |
1881 | }; |
1882 | ||
07ebafba TT |
1883 | struct iw_cm_verbs; |
1884 | ||
7738613e IW |
1885 | struct ib_port_immutable { |
1886 | int pkey_tbl_len; | |
1887 | int gid_tbl_len; | |
f9b22e35 | 1888 | u32 core_cap_flags; |
337877a4 | 1889 | u32 max_mad_size; |
7738613e IW |
1890 | }; |
1891 | ||
2fc77572 VN |
1892 | /* rdma netdev type - specifies protocol type */ |
1893 | enum rdma_netdev_t { | |
f0ad83ac NV |
1894 | RDMA_NETDEV_OPA_VNIC, |
1895 | RDMA_NETDEV_IPOIB, | |
2fc77572 VN |
1896 | }; |
1897 | ||
1898 | /** | |
1899 | * struct rdma_netdev - rdma netdev | |
1900 | * For cases where netstack interfacing is required. | |
1901 | */ | |
1902 | struct rdma_netdev { | |
1903 | void *clnt_priv; | |
1904 | struct ib_device *hca; | |
1905 | u8 port_num; | |
1906 | ||
1907 | /* control functions */ | |
1908 | void (*set_id)(struct net_device *netdev, int id); | |
f0ad83ac NV |
1909 | /* send packet */ |
1910 | int (*send)(struct net_device *dev, struct sk_buff *skb, | |
1911 | struct ib_ah *address, u32 dqpn); | |
1912 | /* multicast */ | |
1913 | int (*attach_mcast)(struct net_device *dev, struct ib_device *hca, | |
1914 | union ib_gid *gid, u16 mlid, | |
1915 | int set_qkey, u32 qkey); | |
1916 | int (*detach_mcast)(struct net_device *dev, struct ib_device *hca, | |
1917 | union ib_gid *gid, u16 mlid); | |
2fc77572 VN |
1918 | }; |
1919 | ||
1da177e4 | 1920 | struct ib_device { |
0957c29f BVA |
1921 | /* Do not access @dma_device directly from ULP nor from HW drivers. */ |
1922 | struct device *dma_device; | |
1923 | ||
1da177e4 LT |
1924 | char name[IB_DEVICE_NAME_MAX]; |
1925 | ||
1926 | struct list_head event_handler_list; | |
1927 | spinlock_t event_handler_lock; | |
1928 | ||
17a55f79 | 1929 | spinlock_t client_data_lock; |
1da177e4 | 1930 | struct list_head core_list; |
7c1eb45a HE |
1931 | /* Access to the client_data_list is protected by the client_data_lock |
1932 | * spinlock and the lists_rwsem read-write semaphore */ | |
1da177e4 | 1933 | struct list_head client_data_list; |
1da177e4 LT |
1934 | |
1935 | struct ib_cache cache; | |
7738613e IW |
1936 | /** |
1937 | * port_immutable is indexed by port number | |
1938 | */ | |
1939 | struct ib_port_immutable *port_immutable; | |
1da177e4 | 1940 | |
f4fd0b22 MT |
1941 | int num_comp_vectors; |
1942 | ||
07ebafba TT |
1943 | struct iw_cm_verbs *iwcm; |
1944 | ||
b40f4757 CL |
1945 | /** |
1946 | * alloc_hw_stats - Allocate a struct rdma_hw_stats and fill in the | |
1947 | * driver initialized data. The struct is kfree()'ed by the sysfs | |
1948 | * core when the device is removed. A lifespan of -1 in the return | |
1949 | * struct tells the core to set a default lifespan. | |
1950 | */ | |
1951 | struct rdma_hw_stats *(*alloc_hw_stats)(struct ib_device *device, | |
1952 | u8 port_num); | |
1953 | /** | |
1954 | * get_hw_stats - Fill in the counter value(s) in the stats struct. | |
1955 | * @index - The index in the value array we wish to have updated, or | |
1956 | * num_counters if we want all stats updated | |
1957 | * Return codes - | |
1958 | * < 0 - Error, no counters updated | |
1959 | * index - Updated the single counter pointed to by index | |
1960 | * num_counters - Updated all counters (will reset the timestamp | |
1961 | * and prevent further calls for lifespan milliseconds) | |
1962 | * Drivers are allowed to update all counters in leiu of just the | |
1963 | * one given in index at their option | |
1964 | */ | |
1965 | int (*get_hw_stats)(struct ib_device *device, | |
1966 | struct rdma_hw_stats *stats, | |
1967 | u8 port, int index); | |
1da177e4 | 1968 | int (*query_device)(struct ib_device *device, |
2528e33e MB |
1969 | struct ib_device_attr *device_attr, |
1970 | struct ib_udata *udata); | |
1da177e4 LT |
1971 | int (*query_port)(struct ib_device *device, |
1972 | u8 port_num, | |
1973 | struct ib_port_attr *port_attr); | |
a3f5adaf EC |
1974 | enum rdma_link_layer (*get_link_layer)(struct ib_device *device, |
1975 | u8 port_num); | |
03db3a2d MB |
1976 | /* When calling get_netdev, the HW vendor's driver should return the |
1977 | * net device of device @device at port @port_num or NULL if such | |
1978 | * a net device doesn't exist. The vendor driver should call dev_hold | |
1979 | * on this net device. The HW vendor's device driver must guarantee | |
1980 | * that this function returns NULL before the net device reaches | |
1981 | * NETDEV_UNREGISTER_FINAL state. | |
1982 | */ | |
1983 | struct net_device *(*get_netdev)(struct ib_device *device, | |
1984 | u8 port_num); | |
1da177e4 LT |
1985 | int (*query_gid)(struct ib_device *device, |
1986 | u8 port_num, int index, | |
1987 | union ib_gid *gid); | |
03db3a2d MB |
1988 | /* When calling add_gid, the HW vendor's driver should |
1989 | * add the gid of device @device at gid index @index of | |
1990 | * port @port_num to be @gid. Meta-info of that gid (for example, | |
1991 | * the network device related to this gid is available | |
1992 | * at @attr. @context allows the HW vendor driver to store extra | |
1993 | * information together with a GID entry. The HW vendor may allocate | |
1994 | * memory to contain this information and store it in @context when a | |
1995 | * new GID entry is written to. Params are consistent until the next | |
1996 | * call of add_gid or delete_gid. The function should return 0 on | |
1997 | * success or error otherwise. The function could be called | |
1998 | * concurrently for different ports. This function is only called | |
1999 | * when roce_gid_table is used. | |
2000 | */ | |
2001 | int (*add_gid)(struct ib_device *device, | |
2002 | u8 port_num, | |
2003 | unsigned int index, | |
2004 | const union ib_gid *gid, | |
2005 | const struct ib_gid_attr *attr, | |
2006 | void **context); | |
2007 | /* When calling del_gid, the HW vendor's driver should delete the | |
2008 | * gid of device @device at gid index @index of port @port_num. | |
2009 | * Upon the deletion of a GID entry, the HW vendor must free any | |
2010 | * allocated memory. The caller will clear @context afterwards. | |
2011 | * This function is only called when roce_gid_table is used. | |
2012 | */ | |
2013 | int (*del_gid)(struct ib_device *device, | |
2014 | u8 port_num, | |
2015 | unsigned int index, | |
2016 | void **context); | |
1da177e4 LT |
2017 | int (*query_pkey)(struct ib_device *device, |
2018 | u8 port_num, u16 index, u16 *pkey); | |
2019 | int (*modify_device)(struct ib_device *device, | |
2020 | int device_modify_mask, | |
2021 | struct ib_device_modify *device_modify); | |
2022 | int (*modify_port)(struct ib_device *device, | |
2023 | u8 port_num, int port_modify_mask, | |
2024 | struct ib_port_modify *port_modify); | |
e2773c06 RD |
2025 | struct ib_ucontext * (*alloc_ucontext)(struct ib_device *device, |
2026 | struct ib_udata *udata); | |
2027 | int (*dealloc_ucontext)(struct ib_ucontext *context); | |
2028 | int (*mmap)(struct ib_ucontext *context, | |
2029 | struct vm_area_struct *vma); | |
2030 | struct ib_pd * (*alloc_pd)(struct ib_device *device, | |
2031 | struct ib_ucontext *context, | |
2032 | struct ib_udata *udata); | |
1da177e4 LT |
2033 | int (*dealloc_pd)(struct ib_pd *pd); |
2034 | struct ib_ah * (*create_ah)(struct ib_pd *pd, | |
90898850 | 2035 | struct rdma_ah_attr *ah_attr, |
477864c8 | 2036 | struct ib_udata *udata); |
1da177e4 | 2037 | int (*modify_ah)(struct ib_ah *ah, |
90898850 | 2038 | struct rdma_ah_attr *ah_attr); |
1da177e4 | 2039 | int (*query_ah)(struct ib_ah *ah, |
90898850 | 2040 | struct rdma_ah_attr *ah_attr); |
1da177e4 | 2041 | int (*destroy_ah)(struct ib_ah *ah); |
d41fcc67 RD |
2042 | struct ib_srq * (*create_srq)(struct ib_pd *pd, |
2043 | struct ib_srq_init_attr *srq_init_attr, | |
2044 | struct ib_udata *udata); | |
2045 | int (*modify_srq)(struct ib_srq *srq, | |
2046 | struct ib_srq_attr *srq_attr, | |
9bc57e2d RC |
2047 | enum ib_srq_attr_mask srq_attr_mask, |
2048 | struct ib_udata *udata); | |
d41fcc67 RD |
2049 | int (*query_srq)(struct ib_srq *srq, |
2050 | struct ib_srq_attr *srq_attr); | |
2051 | int (*destroy_srq)(struct ib_srq *srq); | |
2052 | int (*post_srq_recv)(struct ib_srq *srq, | |
2053 | struct ib_recv_wr *recv_wr, | |
2054 | struct ib_recv_wr **bad_recv_wr); | |
1da177e4 | 2055 | struct ib_qp * (*create_qp)(struct ib_pd *pd, |
e2773c06 RD |
2056 | struct ib_qp_init_attr *qp_init_attr, |
2057 | struct ib_udata *udata); | |
1da177e4 LT |
2058 | int (*modify_qp)(struct ib_qp *qp, |
2059 | struct ib_qp_attr *qp_attr, | |
9bc57e2d RC |
2060 | int qp_attr_mask, |
2061 | struct ib_udata *udata); | |
1da177e4 LT |
2062 | int (*query_qp)(struct ib_qp *qp, |
2063 | struct ib_qp_attr *qp_attr, | |
2064 | int qp_attr_mask, | |
2065 | struct ib_qp_init_attr *qp_init_attr); | |
2066 | int (*destroy_qp)(struct ib_qp *qp); | |
2067 | int (*post_send)(struct ib_qp *qp, | |
2068 | struct ib_send_wr *send_wr, | |
2069 | struct ib_send_wr **bad_send_wr); | |
2070 | int (*post_recv)(struct ib_qp *qp, | |
2071 | struct ib_recv_wr *recv_wr, | |
2072 | struct ib_recv_wr **bad_recv_wr); | |
bcf4c1ea MB |
2073 | struct ib_cq * (*create_cq)(struct ib_device *device, |
2074 | const struct ib_cq_init_attr *attr, | |
e2773c06 RD |
2075 | struct ib_ucontext *context, |
2076 | struct ib_udata *udata); | |
2dd57162 EC |
2077 | int (*modify_cq)(struct ib_cq *cq, u16 cq_count, |
2078 | u16 cq_period); | |
1da177e4 | 2079 | int (*destroy_cq)(struct ib_cq *cq); |
33b9b3ee RD |
2080 | int (*resize_cq)(struct ib_cq *cq, int cqe, |
2081 | struct ib_udata *udata); | |
1da177e4 LT |
2082 | int (*poll_cq)(struct ib_cq *cq, int num_entries, |
2083 | struct ib_wc *wc); | |
2084 | int (*peek_cq)(struct ib_cq *cq, int wc_cnt); | |
2085 | int (*req_notify_cq)(struct ib_cq *cq, | |
ed23a727 | 2086 | enum ib_cq_notify_flags flags); |
1da177e4 LT |
2087 | int (*req_ncomp_notif)(struct ib_cq *cq, |
2088 | int wc_cnt); | |
2089 | struct ib_mr * (*get_dma_mr)(struct ib_pd *pd, | |
2090 | int mr_access_flags); | |
e2773c06 | 2091 | struct ib_mr * (*reg_user_mr)(struct ib_pd *pd, |
f7c6a7b5 RD |
2092 | u64 start, u64 length, |
2093 | u64 virt_addr, | |
e2773c06 RD |
2094 | int mr_access_flags, |
2095 | struct ib_udata *udata); | |
7e6edb9b MB |
2096 | int (*rereg_user_mr)(struct ib_mr *mr, |
2097 | int flags, | |
2098 | u64 start, u64 length, | |
2099 | u64 virt_addr, | |
2100 | int mr_access_flags, | |
2101 | struct ib_pd *pd, | |
2102 | struct ib_udata *udata); | |
1da177e4 | 2103 | int (*dereg_mr)(struct ib_mr *mr); |
9bee178b SG |
2104 | struct ib_mr * (*alloc_mr)(struct ib_pd *pd, |
2105 | enum ib_mr_type mr_type, | |
2106 | u32 max_num_sg); | |
4c67e2bf SG |
2107 | int (*map_mr_sg)(struct ib_mr *mr, |
2108 | struct scatterlist *sg, | |
ff2ba993 | 2109 | int sg_nents, |
9aa8b321 | 2110 | unsigned int *sg_offset); |
7083e42e | 2111 | struct ib_mw * (*alloc_mw)(struct ib_pd *pd, |
b2a239df MB |
2112 | enum ib_mw_type type, |
2113 | struct ib_udata *udata); | |
1da177e4 LT |
2114 | int (*dealloc_mw)(struct ib_mw *mw); |
2115 | struct ib_fmr * (*alloc_fmr)(struct ib_pd *pd, | |
2116 | int mr_access_flags, | |
2117 | struct ib_fmr_attr *fmr_attr); | |
2118 | int (*map_phys_fmr)(struct ib_fmr *fmr, | |
2119 | u64 *page_list, int list_len, | |
2120 | u64 iova); | |
2121 | int (*unmap_fmr)(struct list_head *fmr_list); | |
2122 | int (*dealloc_fmr)(struct ib_fmr *fmr); | |
2123 | int (*attach_mcast)(struct ib_qp *qp, | |
2124 | union ib_gid *gid, | |
2125 | u16 lid); | |
2126 | int (*detach_mcast)(struct ib_qp *qp, | |
2127 | union ib_gid *gid, | |
2128 | u16 lid); | |
2129 | int (*process_mad)(struct ib_device *device, | |
2130 | int process_mad_flags, | |
2131 | u8 port_num, | |
a97e2d86 IW |
2132 | const struct ib_wc *in_wc, |
2133 | const struct ib_grh *in_grh, | |
4cd7c947 IW |
2134 | const struct ib_mad_hdr *in_mad, |
2135 | size_t in_mad_size, | |
2136 | struct ib_mad_hdr *out_mad, | |
2137 | size_t *out_mad_size, | |
2138 | u16 *out_mad_pkey_index); | |
59991f94 SH |
2139 | struct ib_xrcd * (*alloc_xrcd)(struct ib_device *device, |
2140 | struct ib_ucontext *ucontext, | |
2141 | struct ib_udata *udata); | |
2142 | int (*dealloc_xrcd)(struct ib_xrcd *xrcd); | |
319a441d HHZ |
2143 | struct ib_flow * (*create_flow)(struct ib_qp *qp, |
2144 | struct ib_flow_attr | |
2145 | *flow_attr, | |
2146 | int domain); | |
2147 | int (*destroy_flow)(struct ib_flow *flow_id); | |
1b01d335 SG |
2148 | int (*check_mr_status)(struct ib_mr *mr, u32 check_mask, |
2149 | struct ib_mr_status *mr_status); | |
036b1063 | 2150 | void (*disassociate_ucontext)(struct ib_ucontext *ibcontext); |
765d6774 SW |
2151 | void (*drain_rq)(struct ib_qp *qp); |
2152 | void (*drain_sq)(struct ib_qp *qp); | |
50174a7f EC |
2153 | int (*set_vf_link_state)(struct ib_device *device, int vf, u8 port, |
2154 | int state); | |
2155 | int (*get_vf_config)(struct ib_device *device, int vf, u8 port, | |
2156 | struct ifla_vf_info *ivf); | |
2157 | int (*get_vf_stats)(struct ib_device *device, int vf, u8 port, | |
2158 | struct ifla_vf_stats *stats); | |
2159 | int (*set_vf_guid)(struct ib_device *device, int vf, u8 port, u64 guid, | |
2160 | int type); | |
5fd251c8 YH |
2161 | struct ib_wq * (*create_wq)(struct ib_pd *pd, |
2162 | struct ib_wq_init_attr *init_attr, | |
2163 | struct ib_udata *udata); | |
2164 | int (*destroy_wq)(struct ib_wq *wq); | |
2165 | int (*modify_wq)(struct ib_wq *wq, | |
2166 | struct ib_wq_attr *attr, | |
2167 | u32 wq_attr_mask, | |
2168 | struct ib_udata *udata); | |
6d39786b YH |
2169 | struct ib_rwq_ind_table * (*create_rwq_ind_table)(struct ib_device *device, |
2170 | struct ib_rwq_ind_table_init_attr *init_attr, | |
2171 | struct ib_udata *udata); | |
2172 | int (*destroy_rwq_ind_table)(struct ib_rwq_ind_table *wq_ind_table); | |
2fc77572 VN |
2173 | /** |
2174 | * rdma netdev operations | |
2175 | * | |
2176 | * Driver implementing alloc_rdma_netdev must return -EOPNOTSUPP if it | |
2177 | * doesn't support the specified rdma netdev type. | |
2178 | */ | |
2179 | struct net_device *(*alloc_rdma_netdev)( | |
2180 | struct ib_device *device, | |
2181 | u8 port_num, | |
2182 | enum rdma_netdev_t type, | |
2183 | const char *name, | |
2184 | unsigned char name_assign_type, | |
2185 | void (*setup)(struct net_device *)); | |
2186 | void (*free_rdma_netdev)(struct net_device *netdev); | |
9b513090 | 2187 | |
e2773c06 | 2188 | struct module *owner; |
f4e91eb4 | 2189 | struct device dev; |
35be0681 | 2190 | struct kobject *ports_parent; |
1da177e4 LT |
2191 | struct list_head port_list; |
2192 | ||
2193 | enum { | |
2194 | IB_DEV_UNINITIALIZED, | |
2195 | IB_DEV_REGISTERED, | |
2196 | IB_DEV_UNREGISTERED | |
2197 | } reg_state; | |
2198 | ||
274c0891 | 2199 | int uverbs_abi_ver; |
17a55f79 | 2200 | u64 uverbs_cmd_mask; |
f21519b2 | 2201 | u64 uverbs_ex_cmd_mask; |
274c0891 | 2202 | |
bd99fdea | 2203 | char node_desc[IB_DEVICE_NODE_DESC_MAX]; |
cf311cd4 | 2204 | __be64 node_guid; |
96f15c03 | 2205 | u32 local_dma_lkey; |
4139032b | 2206 | u16 is_switch:1; |
1da177e4 LT |
2207 | u8 node_type; |
2208 | u8 phys_port_cnt; | |
3e153a93 | 2209 | struct ib_device_attr attrs; |
b40f4757 CL |
2210 | struct attribute_group *hw_stats_ag; |
2211 | struct rdma_hw_stats *hw_stats; | |
7738613e | 2212 | |
43579b5f PP |
2213 | #ifdef CONFIG_CGROUP_RDMA |
2214 | struct rdmacg_device cg_device; | |
2215 | #endif | |
2216 | ||
7738613e IW |
2217 | /** |
2218 | * The following mandatory functions are used only at device | |
2219 | * registration. Keep functions such as these at the end of this | |
2220 | * structure to avoid cache line misses when accessing struct ib_device | |
2221 | * in fast paths. | |
2222 | */ | |
2223 | int (*get_port_immutable)(struct ib_device *, u8, struct ib_port_immutable *); | |
5fa76c20 | 2224 | void (*get_dev_fw_str)(struct ib_device *, char *str, size_t str_len); |
1da177e4 LT |
2225 | }; |
2226 | ||
2227 | struct ib_client { | |
2228 | char *name; | |
2229 | void (*add) (struct ib_device *); | |
7c1eb45a | 2230 | void (*remove)(struct ib_device *, void *client_data); |
1da177e4 | 2231 | |
9268f72d YK |
2232 | /* Returns the net_dev belonging to this ib_client and matching the |
2233 | * given parameters. | |
2234 | * @dev: An RDMA device that the net_dev use for communication. | |
2235 | * @port: A physical port number on the RDMA device. | |
2236 | * @pkey: P_Key that the net_dev uses if applicable. | |
2237 | * @gid: A GID that the net_dev uses to communicate. | |
2238 | * @addr: An IP address the net_dev is configured with. | |
2239 | * @client_data: The device's client data set by ib_set_client_data(). | |
2240 | * | |
2241 | * An ib_client that implements a net_dev on top of RDMA devices | |
2242 | * (such as IP over IB) should implement this callback, allowing the | |
2243 | * rdma_cm module to find the right net_dev for a given request. | |
2244 | * | |
2245 | * The caller is responsible for calling dev_put on the returned | |
2246 | * netdev. */ | |
2247 | struct net_device *(*get_net_dev_by_params)( | |
2248 | struct ib_device *dev, | |
2249 | u8 port, | |
2250 | u16 pkey, | |
2251 | const union ib_gid *gid, | |
2252 | const struct sockaddr *addr, | |
2253 | void *client_data); | |
1da177e4 LT |
2254 | struct list_head list; |
2255 | }; | |
2256 | ||
2257 | struct ib_device *ib_alloc_device(size_t size); | |
2258 | void ib_dealloc_device(struct ib_device *device); | |
2259 | ||
5fa76c20 IW |
2260 | void ib_get_device_fw_str(struct ib_device *device, char *str, size_t str_len); |
2261 | ||
9a6edb60 RC |
2262 | int ib_register_device(struct ib_device *device, |
2263 | int (*port_callback)(struct ib_device *, | |
2264 | u8, struct kobject *)); | |
1da177e4 LT |
2265 | void ib_unregister_device(struct ib_device *device); |
2266 | ||
2267 | int ib_register_client (struct ib_client *client); | |
2268 | void ib_unregister_client(struct ib_client *client); | |
2269 | ||
2270 | void *ib_get_client_data(struct ib_device *device, struct ib_client *client); | |
2271 | void ib_set_client_data(struct ib_device *device, struct ib_client *client, | |
2272 | void *data); | |
2273 | ||
e2773c06 RD |
2274 | static inline int ib_copy_from_udata(void *dest, struct ib_udata *udata, size_t len) |
2275 | { | |
2276 | return copy_from_user(dest, udata->inbuf, len) ? -EFAULT : 0; | |
2277 | } | |
2278 | ||
2279 | static inline int ib_copy_to_udata(struct ib_udata *udata, void *src, size_t len) | |
2280 | { | |
43c61165 | 2281 | return copy_to_user(udata->outbuf, src, len) ? -EFAULT : 0; |
e2773c06 RD |
2282 | } |
2283 | ||
301a721e MB |
2284 | static inline bool ib_is_udata_cleared(struct ib_udata *udata, |
2285 | size_t offset, | |
2286 | size_t len) | |
2287 | { | |
2288 | const void __user *p = udata->inbuf + offset; | |
92d27ae6 | 2289 | bool ret; |
301a721e MB |
2290 | u8 *buf; |
2291 | ||
2292 | if (len > USHRT_MAX) | |
2293 | return false; | |
2294 | ||
92d27ae6 ME |
2295 | buf = memdup_user(p, len); |
2296 | if (IS_ERR(buf)) | |
301a721e MB |
2297 | return false; |
2298 | ||
301a721e | 2299 | ret = !memchr_inv(buf, 0, len); |
301a721e MB |
2300 | kfree(buf); |
2301 | return ret; | |
2302 | } | |
2303 | ||
8a51866f RD |
2304 | /** |
2305 | * ib_modify_qp_is_ok - Check that the supplied attribute mask | |
2306 | * contains all required attributes and no attributes not allowed for | |
2307 | * the given QP state transition. | |
2308 | * @cur_state: Current QP state | |
2309 | * @next_state: Next QP state | |
2310 | * @type: QP type | |
2311 | * @mask: Mask of supplied QP attributes | |
dd5f03be | 2312 | * @ll : link layer of port |
8a51866f RD |
2313 | * |
2314 | * This function is a helper function that a low-level driver's | |
2315 | * modify_qp method can use to validate the consumer's input. It | |
2316 | * checks that cur_state and next_state are valid QP states, that a | |
2317 | * transition from cur_state to next_state is allowed by the IB spec, | |
2318 | * and that the attribute mask supplied is allowed for the transition. | |
2319 | */ | |
2320 | int ib_modify_qp_is_ok(enum ib_qp_state cur_state, enum ib_qp_state next_state, | |
dd5f03be MB |
2321 | enum ib_qp_type type, enum ib_qp_attr_mask mask, |
2322 | enum rdma_link_layer ll); | |
8a51866f | 2323 | |
1da177e4 LT |
2324 | int ib_register_event_handler (struct ib_event_handler *event_handler); |
2325 | int ib_unregister_event_handler(struct ib_event_handler *event_handler); | |
2326 | void ib_dispatch_event(struct ib_event *event); | |
2327 | ||
1da177e4 LT |
2328 | int ib_query_port(struct ib_device *device, |
2329 | u8 port_num, struct ib_port_attr *port_attr); | |
2330 | ||
a3f5adaf EC |
2331 | enum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device, |
2332 | u8 port_num); | |
2333 | ||
4139032b HR |
2334 | /** |
2335 | * rdma_cap_ib_switch - Check if the device is IB switch | |
2336 | * @device: Device to check | |
2337 | * | |
2338 | * Device driver is responsible for setting is_switch bit on | |
2339 | * in ib_device structure at init time. | |
2340 | * | |
2341 | * Return: true if the device is IB switch. | |
2342 | */ | |
2343 | static inline bool rdma_cap_ib_switch(const struct ib_device *device) | |
2344 | { | |
2345 | return device->is_switch; | |
2346 | } | |
2347 | ||
0cf18d77 IW |
2348 | /** |
2349 | * rdma_start_port - Return the first valid port number for the device | |
2350 | * specified | |
2351 | * | |
2352 | * @device: Device to be checked | |
2353 | * | |
2354 | * Return start port number | |
2355 | */ | |
2356 | static inline u8 rdma_start_port(const struct ib_device *device) | |
2357 | { | |
4139032b | 2358 | return rdma_cap_ib_switch(device) ? 0 : 1; |
0cf18d77 IW |
2359 | } |
2360 | ||
2361 | /** | |
2362 | * rdma_end_port - Return the last valid port number for the device | |
2363 | * specified | |
2364 | * | |
2365 | * @device: Device to be checked | |
2366 | * | |
2367 | * Return last port number | |
2368 | */ | |
2369 | static inline u8 rdma_end_port(const struct ib_device *device) | |
2370 | { | |
4139032b | 2371 | return rdma_cap_ib_switch(device) ? 0 : device->phys_port_cnt; |
0cf18d77 IW |
2372 | } |
2373 | ||
24dc831b YS |
2374 | static inline int rdma_is_port_valid(const struct ib_device *device, |
2375 | unsigned int port) | |
2376 | { | |
2377 | return (port >= rdma_start_port(device) && | |
2378 | port <= rdma_end_port(device)); | |
2379 | } | |
2380 | ||
5ede9289 | 2381 | static inline bool rdma_protocol_ib(const struct ib_device *device, u8 port_num) |
de66be94 | 2382 | { |
f9b22e35 | 2383 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_IB; |
de66be94 MW |
2384 | } |
2385 | ||
5ede9289 | 2386 | static inline bool rdma_protocol_roce(const struct ib_device *device, u8 port_num) |
7766a99f MB |
2387 | { |
2388 | return device->port_immutable[port_num].core_cap_flags & | |
2389 | (RDMA_CORE_CAP_PROT_ROCE | RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP); | |
2390 | } | |
2391 | ||
2392 | static inline bool rdma_protocol_roce_udp_encap(const struct ib_device *device, u8 port_num) | |
2393 | { | |
2394 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP; | |
2395 | } | |
2396 | ||
2397 | static inline bool rdma_protocol_roce_eth_encap(const struct ib_device *device, u8 port_num) | |
de66be94 | 2398 | { |
f9b22e35 | 2399 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_ROCE; |
de66be94 MW |
2400 | } |
2401 | ||
5ede9289 | 2402 | static inline bool rdma_protocol_iwarp(const struct ib_device *device, u8 port_num) |
de66be94 | 2403 | { |
f9b22e35 | 2404 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_IWARP; |
de66be94 MW |
2405 | } |
2406 | ||
5ede9289 | 2407 | static inline bool rdma_ib_or_roce(const struct ib_device *device, u8 port_num) |
de66be94 | 2408 | { |
7766a99f MB |
2409 | return rdma_protocol_ib(device, port_num) || |
2410 | rdma_protocol_roce(device, port_num); | |
de66be94 MW |
2411 | } |
2412 | ||
aa773bd4 OG |
2413 | static inline bool rdma_protocol_raw_packet(const struct ib_device *device, u8 port_num) |
2414 | { | |
2415 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_RAW_PACKET; | |
2416 | } | |
2417 | ||
ce1e055f OG |
2418 | static inline bool rdma_protocol_usnic(const struct ib_device *device, u8 port_num) |
2419 | { | |
2420 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_USNIC; | |
2421 | } | |
2422 | ||
c757dea8 | 2423 | /** |
296ec009 | 2424 | * rdma_cap_ib_mad - Check if the port of a device supports Infiniband |
c757dea8 | 2425 | * Management Datagrams. |
296ec009 MW |
2426 | * @device: Device to check |
2427 | * @port_num: Port number to check | |
c757dea8 | 2428 | * |
296ec009 MW |
2429 | * Management Datagrams (MAD) are a required part of the InfiniBand |
2430 | * specification and are supported on all InfiniBand devices. A slightly | |
2431 | * extended version are also supported on OPA interfaces. | |
c757dea8 | 2432 | * |
296ec009 | 2433 | * Return: true if the port supports sending/receiving of MAD packets. |
c757dea8 | 2434 | */ |
5ede9289 | 2435 | static inline bool rdma_cap_ib_mad(const struct ib_device *device, u8 port_num) |
c757dea8 | 2436 | { |
f9b22e35 | 2437 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IB_MAD; |
c757dea8 MW |
2438 | } |
2439 | ||
65995fee IW |
2440 | /** |
2441 | * rdma_cap_opa_mad - Check if the port of device provides support for OPA | |
2442 | * Management Datagrams. | |
2443 | * @device: Device to check | |
2444 | * @port_num: Port number to check | |
2445 | * | |
2446 | * Intel OmniPath devices extend and/or replace the InfiniBand Management | |
2447 | * datagrams with their own versions. These OPA MADs share many but not all of | |
2448 | * the characteristics of InfiniBand MADs. | |
2449 | * | |
2450 | * OPA MADs differ in the following ways: | |
2451 | * | |
2452 | * 1) MADs are variable size up to 2K | |
2453 | * IBTA defined MADs remain fixed at 256 bytes | |
2454 | * 2) OPA SMPs must carry valid PKeys | |
2455 | * 3) OPA SMP packets are a different format | |
2456 | * | |
2457 | * Return: true if the port supports OPA MAD packet formats. | |
2458 | */ | |
2459 | static inline bool rdma_cap_opa_mad(struct ib_device *device, u8 port_num) | |
2460 | { | |
2461 | return (device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_OPA_MAD) | |
2462 | == RDMA_CORE_CAP_OPA_MAD; | |
2463 | } | |
2464 | ||
29541e3a | 2465 | /** |
296ec009 MW |
2466 | * rdma_cap_ib_smi - Check if the port of a device provides an Infiniband |
2467 | * Subnet Management Agent (SMA) on the Subnet Management Interface (SMI). | |
2468 | * @device: Device to check | |
2469 | * @port_num: Port number to check | |
29541e3a | 2470 | * |
296ec009 MW |
2471 | * Each InfiniBand node is required to provide a Subnet Management Agent |
2472 | * that the subnet manager can access. Prior to the fabric being fully | |
2473 | * configured by the subnet manager, the SMA is accessed via a well known | |
2474 | * interface called the Subnet Management Interface (SMI). This interface | |
2475 | * uses directed route packets to communicate with the SM to get around the | |
2476 | * chicken and egg problem of the SM needing to know what's on the fabric | |
2477 | * in order to configure the fabric, and needing to configure the fabric in | |
2478 | * order to send packets to the devices on the fabric. These directed | |
2479 | * route packets do not need the fabric fully configured in order to reach | |
2480 | * their destination. The SMI is the only method allowed to send | |
2481 | * directed route packets on an InfiniBand fabric. | |
29541e3a | 2482 | * |
296ec009 | 2483 | * Return: true if the port provides an SMI. |
29541e3a | 2484 | */ |
5ede9289 | 2485 | static inline bool rdma_cap_ib_smi(const struct ib_device *device, u8 port_num) |
29541e3a | 2486 | { |
f9b22e35 | 2487 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IB_SMI; |
29541e3a MW |
2488 | } |
2489 | ||
72219cea MW |
2490 | /** |
2491 | * rdma_cap_ib_cm - Check if the port of device has the capability Infiniband | |
2492 | * Communication Manager. | |
296ec009 MW |
2493 | * @device: Device to check |
2494 | * @port_num: Port number to check | |
72219cea | 2495 | * |
296ec009 MW |
2496 | * The InfiniBand Communication Manager is one of many pre-defined General |
2497 | * Service Agents (GSA) that are accessed via the General Service | |
2498 | * Interface (GSI). It's role is to facilitate establishment of connections | |
2499 | * between nodes as well as other management related tasks for established | |
2500 | * connections. | |
72219cea | 2501 | * |
296ec009 MW |
2502 | * Return: true if the port supports an IB CM (this does not guarantee that |
2503 | * a CM is actually running however). | |
72219cea | 2504 | */ |
5ede9289 | 2505 | static inline bool rdma_cap_ib_cm(const struct ib_device *device, u8 port_num) |
72219cea | 2506 | { |
f9b22e35 | 2507 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IB_CM; |
72219cea MW |
2508 | } |
2509 | ||
04215330 MW |
2510 | /** |
2511 | * rdma_cap_iw_cm - Check if the port of device has the capability IWARP | |
2512 | * Communication Manager. | |
296ec009 MW |
2513 | * @device: Device to check |
2514 | * @port_num: Port number to check | |
04215330 | 2515 | * |
296ec009 MW |
2516 | * Similar to above, but specific to iWARP connections which have a different |
2517 | * managment protocol than InfiniBand. | |
04215330 | 2518 | * |
296ec009 MW |
2519 | * Return: true if the port supports an iWARP CM (this does not guarantee that |
2520 | * a CM is actually running however). | |
04215330 | 2521 | */ |
5ede9289 | 2522 | static inline bool rdma_cap_iw_cm(const struct ib_device *device, u8 port_num) |
04215330 | 2523 | { |
f9b22e35 | 2524 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IW_CM; |
04215330 MW |
2525 | } |
2526 | ||
fe53ba2f MW |
2527 | /** |
2528 | * rdma_cap_ib_sa - Check if the port of device has the capability Infiniband | |
2529 | * Subnet Administration. | |
296ec009 MW |
2530 | * @device: Device to check |
2531 | * @port_num: Port number to check | |
fe53ba2f | 2532 | * |
296ec009 MW |
2533 | * An InfiniBand Subnet Administration (SA) service is a pre-defined General |
2534 | * Service Agent (GSA) provided by the Subnet Manager (SM). On InfiniBand | |
2535 | * fabrics, devices should resolve routes to other hosts by contacting the | |
2536 | * SA to query the proper route. | |
fe53ba2f | 2537 | * |
296ec009 MW |
2538 | * Return: true if the port should act as a client to the fabric Subnet |
2539 | * Administration interface. This does not imply that the SA service is | |
2540 | * running locally. | |
fe53ba2f | 2541 | */ |
5ede9289 | 2542 | static inline bool rdma_cap_ib_sa(const struct ib_device *device, u8 port_num) |
fe53ba2f | 2543 | { |
f9b22e35 | 2544 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IB_SA; |
fe53ba2f MW |
2545 | } |
2546 | ||
a31ad3b0 MW |
2547 | /** |
2548 | * rdma_cap_ib_mcast - Check if the port of device has the capability Infiniband | |
2549 | * Multicast. | |
296ec009 MW |
2550 | * @device: Device to check |
2551 | * @port_num: Port number to check | |
a31ad3b0 | 2552 | * |
296ec009 MW |
2553 | * InfiniBand multicast registration is more complex than normal IPv4 or |
2554 | * IPv6 multicast registration. Each Host Channel Adapter must register | |
2555 | * with the Subnet Manager when it wishes to join a multicast group. It | |
2556 | * should do so only once regardless of how many queue pairs it subscribes | |
2557 | * to this group. And it should leave the group only after all queue pairs | |
2558 | * attached to the group have been detached. | |
a31ad3b0 | 2559 | * |
296ec009 MW |
2560 | * Return: true if the port must undertake the additional adminstrative |
2561 | * overhead of registering/unregistering with the SM and tracking of the | |
2562 | * total number of queue pairs attached to the multicast group. | |
a31ad3b0 | 2563 | */ |
5ede9289 | 2564 | static inline bool rdma_cap_ib_mcast(const struct ib_device *device, u8 port_num) |
a31ad3b0 MW |
2565 | { |
2566 | return rdma_cap_ib_sa(device, port_num); | |
2567 | } | |
2568 | ||
30a74ef4 MW |
2569 | /** |
2570 | * rdma_cap_af_ib - Check if the port of device has the capability | |
2571 | * Native Infiniband Address. | |
296ec009 MW |
2572 | * @device: Device to check |
2573 | * @port_num: Port number to check | |
30a74ef4 | 2574 | * |
296ec009 MW |
2575 | * InfiniBand addressing uses a port's GUID + Subnet Prefix to make a default |
2576 | * GID. RoCE uses a different mechanism, but still generates a GID via | |
2577 | * a prescribed mechanism and port specific data. | |
30a74ef4 | 2578 | * |
296ec009 MW |
2579 | * Return: true if the port uses a GID address to identify devices on the |
2580 | * network. | |
30a74ef4 | 2581 | */ |
5ede9289 | 2582 | static inline bool rdma_cap_af_ib(const struct ib_device *device, u8 port_num) |
30a74ef4 | 2583 | { |
f9b22e35 | 2584 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_AF_IB; |
30a74ef4 MW |
2585 | } |
2586 | ||
227128fc MW |
2587 | /** |
2588 | * rdma_cap_eth_ah - Check if the port of device has the capability | |
296ec009 MW |
2589 | * Ethernet Address Handle. |
2590 | * @device: Device to check | |
2591 | * @port_num: Port number to check | |
227128fc | 2592 | * |
296ec009 MW |
2593 | * RoCE is InfiniBand over Ethernet, and it uses a well defined technique |
2594 | * to fabricate GIDs over Ethernet/IP specific addresses native to the | |
2595 | * port. Normally, packet headers are generated by the sending host | |
2596 | * adapter, but when sending connectionless datagrams, we must manually | |
2597 | * inject the proper headers for the fabric we are communicating over. | |
227128fc | 2598 | * |
296ec009 MW |
2599 | * Return: true if we are running as a RoCE port and must force the |
2600 | * addition of a Global Route Header built from our Ethernet Address | |
2601 | * Handle into our header list for connectionless packets. | |
227128fc | 2602 | */ |
5ede9289 | 2603 | static inline bool rdma_cap_eth_ah(const struct ib_device *device, u8 port_num) |
227128fc | 2604 | { |
f9b22e35 | 2605 | return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_ETH_AH; |
227128fc MW |
2606 | } |
2607 | ||
94d595c5 DC |
2608 | /** |
2609 | * rdma_cap_opa_ah - Check if the port of device supports | |
2610 | * OPA Address handles | |
2611 | * @device: Device to check | |
2612 | * @port_num: Port number to check | |
2613 | * | |
2614 | * Return: true if we are running on an OPA device which supports | |
2615 | * the extended OPA addressing. | |
2616 | */ | |
2617 | static inline bool rdma_cap_opa_ah(struct ib_device *device, u8 port_num) | |
2618 | { | |
2619 | return (device->port_immutable[port_num].core_cap_flags & | |
2620 | RDMA_CORE_CAP_OPA_AH) == RDMA_CORE_CAP_OPA_AH; | |
2621 | } | |
2622 | ||
337877a4 IW |
2623 | /** |
2624 | * rdma_max_mad_size - Return the max MAD size required by this RDMA Port. | |
2625 | * | |
2626 | * @device: Device | |
2627 | * @port_num: Port number | |
2628 | * | |
2629 | * This MAD size includes the MAD headers and MAD payload. No other headers | |
2630 | * are included. | |
2631 | * | |
2632 | * Return the max MAD size required by the Port. Will return 0 if the port | |
2633 | * does not support MADs | |
2634 | */ | |
2635 | static inline size_t rdma_max_mad_size(const struct ib_device *device, u8 port_num) | |
2636 | { | |
2637 | return device->port_immutable[port_num].max_mad_size; | |
2638 | } | |
2639 | ||
03db3a2d MB |
2640 | /** |
2641 | * rdma_cap_roce_gid_table - Check if the port of device uses roce_gid_table | |
2642 | * @device: Device to check | |
2643 | * @port_num: Port number to check | |
2644 | * | |
2645 | * RoCE GID table mechanism manages the various GIDs for a device. | |
2646 | * | |
2647 | * NOTE: if allocating the port's GID table has failed, this call will still | |
2648 | * return true, but any RoCE GID table API will fail. | |
2649 | * | |
2650 | * Return: true if the port uses RoCE GID table mechanism in order to manage | |
2651 | * its GIDs. | |
2652 | */ | |
2653 | static inline bool rdma_cap_roce_gid_table(const struct ib_device *device, | |
2654 | u8 port_num) | |
2655 | { | |
2656 | return rdma_protocol_roce(device, port_num) && | |
2657 | device->add_gid && device->del_gid; | |
2658 | } | |
2659 | ||
002516ed CH |
2660 | /* |
2661 | * Check if the device supports READ W/ INVALIDATE. | |
2662 | */ | |
2663 | static inline bool rdma_cap_read_inv(struct ib_device *dev, u32 port_num) | |
2664 | { | |
2665 | /* | |
2666 | * iWarp drivers must support READ W/ INVALIDATE. No other protocol | |
2667 | * has support for it yet. | |
2668 | */ | |
2669 | return rdma_protocol_iwarp(dev, port_num); | |
2670 | } | |
2671 | ||
1da177e4 | 2672 | int ib_query_gid(struct ib_device *device, |
55ee3ab2 MB |
2673 | u8 port_num, int index, union ib_gid *gid, |
2674 | struct ib_gid_attr *attr); | |
1da177e4 | 2675 | |
50174a7f EC |
2676 | int ib_set_vf_link_state(struct ib_device *device, int vf, u8 port, |
2677 | int state); | |
2678 | int ib_get_vf_config(struct ib_device *device, int vf, u8 port, | |
2679 | struct ifla_vf_info *info); | |
2680 | int ib_get_vf_stats(struct ib_device *device, int vf, u8 port, | |
2681 | struct ifla_vf_stats *stats); | |
2682 | int ib_set_vf_guid(struct ib_device *device, int vf, u8 port, u64 guid, | |
2683 | int type); | |
2684 | ||
1da177e4 LT |
2685 | int ib_query_pkey(struct ib_device *device, |
2686 | u8 port_num, u16 index, u16 *pkey); | |
2687 | ||
2688 | int ib_modify_device(struct ib_device *device, | |
2689 | int device_modify_mask, | |
2690 | struct ib_device_modify *device_modify); | |
2691 | ||
2692 | int ib_modify_port(struct ib_device *device, | |
2693 | u8 port_num, int port_modify_mask, | |
2694 | struct ib_port_modify *port_modify); | |
2695 | ||
5eb620c8 | 2696 | int ib_find_gid(struct ib_device *device, union ib_gid *gid, |
b39ffa1d MB |
2697 | enum ib_gid_type gid_type, struct net_device *ndev, |
2698 | u8 *port_num, u16 *index); | |
5eb620c8 YE |
2699 | |
2700 | int ib_find_pkey(struct ib_device *device, | |
2701 | u8 port_num, u16 pkey, u16 *index); | |
2702 | ||
ed082d36 CH |
2703 | enum ib_pd_flags { |
2704 | /* | |
2705 | * Create a memory registration for all memory in the system and place | |
2706 | * the rkey for it into pd->unsafe_global_rkey. This can be used by | |
2707 | * ULPs to avoid the overhead of dynamic MRs. | |
2708 | * | |
2709 | * This flag is generally considered unsafe and must only be used in | |
2710 | * extremly trusted environments. Every use of it will log a warning | |
2711 | * in the kernel log. | |
2712 | */ | |
2713 | IB_PD_UNSAFE_GLOBAL_RKEY = 0x01, | |
2714 | }; | |
1da177e4 | 2715 | |
ed082d36 CH |
2716 | struct ib_pd *__ib_alloc_pd(struct ib_device *device, unsigned int flags, |
2717 | const char *caller); | |
2718 | #define ib_alloc_pd(device, flags) \ | |
2719 | __ib_alloc_pd((device), (flags), __func__) | |
7dd78647 | 2720 | void ib_dealloc_pd(struct ib_pd *pd); |
1da177e4 LT |
2721 | |
2722 | /** | |
0a18cfe4 | 2723 | * rdma_create_ah - Creates an address handle for the given address vector. |
1da177e4 LT |
2724 | * @pd: The protection domain associated with the address handle. |
2725 | * @ah_attr: The attributes of the address vector. | |
2726 | * | |
2727 | * The address handle is used to reference a local or global destination | |
2728 | * in all UD QP post sends. | |
2729 | */ | |
0a18cfe4 | 2730 | struct ib_ah *rdma_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr); |
1da177e4 | 2731 | |
850d8fd7 MS |
2732 | /** |
2733 | * ib_get_gids_from_rdma_hdr - Get sgid and dgid from GRH or IPv4 header | |
2734 | * work completion. | |
2735 | * @hdr: the L3 header to parse | |
2736 | * @net_type: type of header to parse | |
2737 | * @sgid: place to store source gid | |
2738 | * @dgid: place to store destination gid | |
2739 | */ | |
2740 | int ib_get_gids_from_rdma_hdr(const union rdma_network_hdr *hdr, | |
2741 | enum rdma_network_type net_type, | |
2742 | union ib_gid *sgid, union ib_gid *dgid); | |
2743 | ||
2744 | /** | |
2745 | * ib_get_rdma_header_version - Get the header version | |
2746 | * @hdr: the L3 header to parse | |
2747 | */ | |
2748 | int ib_get_rdma_header_version(const union rdma_network_hdr *hdr); | |
2749 | ||
4e00d694 SH |
2750 | /** |
2751 | * ib_init_ah_from_wc - Initializes address handle attributes from a | |
2752 | * work completion. | |
2753 | * @device: Device on which the received message arrived. | |
2754 | * @port_num: Port on which the received message arrived. | |
2755 | * @wc: Work completion associated with the received message. | |
2756 | * @grh: References the received global route header. This parameter is | |
2757 | * ignored unless the work completion indicates that the GRH is valid. | |
2758 | * @ah_attr: Returned attributes that can be used when creating an address | |
2759 | * handle for replying to the message. | |
2760 | */ | |
73cdaaee IW |
2761 | int ib_init_ah_from_wc(struct ib_device *device, u8 port_num, |
2762 | const struct ib_wc *wc, const struct ib_grh *grh, | |
90898850 | 2763 | struct rdma_ah_attr *ah_attr); |
4e00d694 | 2764 | |
513789ed HR |
2765 | /** |
2766 | * ib_create_ah_from_wc - Creates an address handle associated with the | |
2767 | * sender of the specified work completion. | |
2768 | * @pd: The protection domain associated with the address handle. | |
2769 | * @wc: Work completion information associated with a received message. | |
2770 | * @grh: References the received global route header. This parameter is | |
2771 | * ignored unless the work completion indicates that the GRH is valid. | |
2772 | * @port_num: The outbound port number to associate with the address. | |
2773 | * | |
2774 | * The address handle is used to reference a local or global destination | |
2775 | * in all UD QP post sends. | |
2776 | */ | |
73cdaaee IW |
2777 | struct ib_ah *ib_create_ah_from_wc(struct ib_pd *pd, const struct ib_wc *wc, |
2778 | const struct ib_grh *grh, u8 port_num); | |
513789ed | 2779 | |
1da177e4 | 2780 | /** |
67b985b6 | 2781 | * rdma_modify_ah - Modifies the address vector associated with an address |
1da177e4 LT |
2782 | * handle. |
2783 | * @ah: The address handle to modify. | |
2784 | * @ah_attr: The new address vector attributes to associate with the | |
2785 | * address handle. | |
2786 | */ | |
67b985b6 | 2787 | int rdma_modify_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr); |
1da177e4 LT |
2788 | |
2789 | /** | |
2790 | * ib_query_ah - Queries the address vector associated with an address | |
2791 | * handle. | |
2792 | * @ah: The address handle to query. | |
2793 | * @ah_attr: The address vector attributes associated with the address | |
2794 | * handle. | |
2795 | */ | |
90898850 | 2796 | int ib_query_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr); |
1da177e4 LT |
2797 | |
2798 | /** | |
2799 | * ib_destroy_ah - Destroys an address handle. | |
2800 | * @ah: The address handle to destroy. | |
2801 | */ | |
2802 | int ib_destroy_ah(struct ib_ah *ah); | |
2803 | ||
d41fcc67 RD |
2804 | /** |
2805 | * ib_create_srq - Creates a SRQ associated with the specified protection | |
2806 | * domain. | |
2807 | * @pd: The protection domain associated with the SRQ. | |
abb6e9ba DB |
2808 | * @srq_init_attr: A list of initial attributes required to create the |
2809 | * SRQ. If SRQ creation succeeds, then the attributes are updated to | |
2810 | * the actual capabilities of the created SRQ. | |
d41fcc67 RD |
2811 | * |
2812 | * srq_attr->max_wr and srq_attr->max_sge are read the determine the | |
2813 | * requested size of the SRQ, and set to the actual values allocated | |
2814 | * on return. If ib_create_srq() succeeds, then max_wr and max_sge | |
2815 | * will always be at least as large as the requested values. | |
2816 | */ | |
2817 | struct ib_srq *ib_create_srq(struct ib_pd *pd, | |
2818 | struct ib_srq_init_attr *srq_init_attr); | |
2819 | ||
2820 | /** | |
2821 | * ib_modify_srq - Modifies the attributes for the specified SRQ. | |
2822 | * @srq: The SRQ to modify. | |
2823 | * @srq_attr: On input, specifies the SRQ attributes to modify. On output, | |
2824 | * the current values of selected SRQ attributes are returned. | |
2825 | * @srq_attr_mask: A bit-mask used to specify which attributes of the SRQ | |
2826 | * are being modified. | |
2827 | * | |
2828 | * The mask may contain IB_SRQ_MAX_WR to resize the SRQ and/or | |
2829 | * IB_SRQ_LIMIT to set the SRQ's limit and request notification when | |
2830 | * the number of receives queued drops below the limit. | |
2831 | */ | |
2832 | int ib_modify_srq(struct ib_srq *srq, | |
2833 | struct ib_srq_attr *srq_attr, | |
2834 | enum ib_srq_attr_mask srq_attr_mask); | |
2835 | ||
2836 | /** | |
2837 | * ib_query_srq - Returns the attribute list and current values for the | |
2838 | * specified SRQ. | |
2839 | * @srq: The SRQ to query. | |
2840 | * @srq_attr: The attributes of the specified SRQ. | |
2841 | */ | |
2842 | int ib_query_srq(struct ib_srq *srq, | |
2843 | struct ib_srq_attr *srq_attr); | |
2844 | ||
2845 | /** | |
2846 | * ib_destroy_srq - Destroys the specified SRQ. | |
2847 | * @srq: The SRQ to destroy. | |
2848 | */ | |
2849 | int ib_destroy_srq(struct ib_srq *srq); | |
2850 | ||
2851 | /** | |
2852 | * ib_post_srq_recv - Posts a list of work requests to the specified SRQ. | |
2853 | * @srq: The SRQ to post the work request on. | |
2854 | * @recv_wr: A list of work requests to post on the receive queue. | |
2855 | * @bad_recv_wr: On an immediate failure, this parameter will reference | |
2856 | * the work request that failed to be posted on the QP. | |
2857 | */ | |
2858 | static inline int ib_post_srq_recv(struct ib_srq *srq, | |
2859 | struct ib_recv_wr *recv_wr, | |
2860 | struct ib_recv_wr **bad_recv_wr) | |
2861 | { | |
2862 | return srq->device->post_srq_recv(srq, recv_wr, bad_recv_wr); | |
2863 | } | |
2864 | ||
1da177e4 LT |
2865 | /** |
2866 | * ib_create_qp - Creates a QP associated with the specified protection | |
2867 | * domain. | |
2868 | * @pd: The protection domain associated with the QP. | |
abb6e9ba DB |
2869 | * @qp_init_attr: A list of initial attributes required to create the |
2870 | * QP. If QP creation succeeds, then the attributes are updated to | |
2871 | * the actual capabilities of the created QP. | |
1da177e4 LT |
2872 | */ |
2873 | struct ib_qp *ib_create_qp(struct ib_pd *pd, | |
2874 | struct ib_qp_init_attr *qp_init_attr); | |
2875 | ||
2876 | /** | |
2877 | * ib_modify_qp - Modifies the attributes for the specified QP and then | |
2878 | * transitions the QP to the given state. | |
2879 | * @qp: The QP to modify. | |
2880 | * @qp_attr: On input, specifies the QP attributes to modify. On output, | |
2881 | * the current values of selected QP attributes are returned. | |
2882 | * @qp_attr_mask: A bit-mask used to specify which attributes of the QP | |
2883 | * are being modified. | |
2884 | */ | |
2885 | int ib_modify_qp(struct ib_qp *qp, | |
2886 | struct ib_qp_attr *qp_attr, | |
2887 | int qp_attr_mask); | |
2888 | ||
2889 | /** | |
2890 | * ib_query_qp - Returns the attribute list and current values for the | |
2891 | * specified QP. | |
2892 | * @qp: The QP to query. | |
2893 | * @qp_attr: The attributes of the specified QP. | |
2894 | * @qp_attr_mask: A bit-mask used to select specific attributes to query. | |
2895 | * @qp_init_attr: Additional attributes of the selected QP. | |
2896 | * | |
2897 | * The qp_attr_mask may be used to limit the query to gathering only the | |
2898 | * selected attributes. | |
2899 | */ | |
2900 | int ib_query_qp(struct ib_qp *qp, | |
2901 | struct ib_qp_attr *qp_attr, | |
2902 | int qp_attr_mask, | |
2903 | struct ib_qp_init_attr *qp_init_attr); | |
2904 | ||
2905 | /** | |
2906 | * ib_destroy_qp - Destroys the specified QP. | |
2907 | * @qp: The QP to destroy. | |
2908 | */ | |
2909 | int ib_destroy_qp(struct ib_qp *qp); | |
2910 | ||
d3d72d90 | 2911 | /** |
0e0ec7e0 SH |
2912 | * ib_open_qp - Obtain a reference to an existing sharable QP. |
2913 | * @xrcd - XRC domain | |
2914 | * @qp_open_attr: Attributes identifying the QP to open. | |
2915 | * | |
2916 | * Returns a reference to a sharable QP. | |
2917 | */ | |
2918 | struct ib_qp *ib_open_qp(struct ib_xrcd *xrcd, | |
2919 | struct ib_qp_open_attr *qp_open_attr); | |
2920 | ||
2921 | /** | |
2922 | * ib_close_qp - Release an external reference to a QP. | |
d3d72d90 SH |
2923 | * @qp: The QP handle to release |
2924 | * | |
0e0ec7e0 SH |
2925 | * The opened QP handle is released by the caller. The underlying |
2926 | * shared QP is not destroyed until all internal references are released. | |
d3d72d90 | 2927 | */ |
0e0ec7e0 | 2928 | int ib_close_qp(struct ib_qp *qp); |
d3d72d90 | 2929 | |
1da177e4 LT |
2930 | /** |
2931 | * ib_post_send - Posts a list of work requests to the send queue of | |
2932 | * the specified QP. | |
2933 | * @qp: The QP to post the work request on. | |
2934 | * @send_wr: A list of work requests to post on the send queue. | |
2935 | * @bad_send_wr: On an immediate failure, this parameter will reference | |
2936 | * the work request that failed to be posted on the QP. | |
55464d46 BVA |
2937 | * |
2938 | * While IBA Vol. 1 section 11.4.1.1 specifies that if an immediate | |
2939 | * error is returned, the QP state shall not be affected, | |
2940 | * ib_post_send() will return an immediate error after queueing any | |
2941 | * earlier work requests in the list. | |
1da177e4 LT |
2942 | */ |
2943 | static inline int ib_post_send(struct ib_qp *qp, | |
2944 | struct ib_send_wr *send_wr, | |
2945 | struct ib_send_wr **bad_send_wr) | |
2946 | { | |
2947 | return qp->device->post_send(qp, send_wr, bad_send_wr); | |
2948 | } | |
2949 | ||
2950 | /** | |
2951 | * ib_post_recv - Posts a list of work requests to the receive queue of | |
2952 | * the specified QP. | |
2953 | * @qp: The QP to post the work request on. | |
2954 | * @recv_wr: A list of work requests to post on the receive queue. | |
2955 | * @bad_recv_wr: On an immediate failure, this parameter will reference | |
2956 | * the work request that failed to be posted on the QP. | |
2957 | */ | |
2958 | static inline int ib_post_recv(struct ib_qp *qp, | |
2959 | struct ib_recv_wr *recv_wr, | |
2960 | struct ib_recv_wr **bad_recv_wr) | |
2961 | { | |
2962 | return qp->device->post_recv(qp, recv_wr, bad_recv_wr); | |
2963 | } | |
2964 | ||
14d3a3b2 CH |
2965 | struct ib_cq *ib_alloc_cq(struct ib_device *dev, void *private, |
2966 | int nr_cqe, int comp_vector, enum ib_poll_context poll_ctx); | |
2967 | void ib_free_cq(struct ib_cq *cq); | |
2968 | int ib_process_cq_direct(struct ib_cq *cq, int budget); | |
2969 | ||
1da177e4 LT |
2970 | /** |
2971 | * ib_create_cq - Creates a CQ on the specified device. | |
2972 | * @device: The device on which to create the CQ. | |
2973 | * @comp_handler: A user-specified callback that is invoked when a | |
2974 | * completion event occurs on the CQ. | |
2975 | * @event_handler: A user-specified callback that is invoked when an | |
2976 | * asynchronous event not associated with a completion occurs on the CQ. | |
2977 | * @cq_context: Context associated with the CQ returned to the user via | |
2978 | * the associated completion and event handlers. | |
8e37210b | 2979 | * @cq_attr: The attributes the CQ should be created upon. |
1da177e4 LT |
2980 | * |
2981 | * Users can examine the cq structure to determine the actual CQ size. | |
2982 | */ | |
2983 | struct ib_cq *ib_create_cq(struct ib_device *device, | |
2984 | ib_comp_handler comp_handler, | |
2985 | void (*event_handler)(struct ib_event *, void *), | |
8e37210b MB |
2986 | void *cq_context, |
2987 | const struct ib_cq_init_attr *cq_attr); | |
1da177e4 LT |
2988 | |
2989 | /** | |
2990 | * ib_resize_cq - Modifies the capacity of the CQ. | |
2991 | * @cq: The CQ to resize. | |
2992 | * @cqe: The minimum size of the CQ. | |
2993 | * | |
2994 | * Users can examine the cq structure to determine the actual CQ size. | |
2995 | */ | |
2996 | int ib_resize_cq(struct ib_cq *cq, int cqe); | |
2997 | ||
2dd57162 EC |
2998 | /** |
2999 | * ib_modify_cq - Modifies moderation params of the CQ | |
3000 | * @cq: The CQ to modify. | |
3001 | * @cq_count: number of CQEs that will trigger an event | |
3002 | * @cq_period: max period of time in usec before triggering an event | |
3003 | * | |
3004 | */ | |
3005 | int ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period); | |
3006 | ||
1da177e4 LT |
3007 | /** |
3008 | * ib_destroy_cq - Destroys the specified CQ. | |
3009 | * @cq: The CQ to destroy. | |
3010 | */ | |
3011 | int ib_destroy_cq(struct ib_cq *cq); | |
3012 | ||
3013 | /** | |
3014 | * ib_poll_cq - poll a CQ for completion(s) | |
3015 | * @cq:the CQ being polled | |
3016 | * @num_entries:maximum number of completions to return | |
3017 | * @wc:array of at least @num_entries &struct ib_wc where completions | |
3018 | * will be returned | |
3019 | * | |
3020 | * Poll a CQ for (possibly multiple) completions. If the return value | |
3021 | * is < 0, an error occurred. If the return value is >= 0, it is the | |
3022 | * number of completions returned. If the return value is | |
3023 | * non-negative and < num_entries, then the CQ was emptied. | |
3024 | */ | |
3025 | static inline int ib_poll_cq(struct ib_cq *cq, int num_entries, | |
3026 | struct ib_wc *wc) | |
3027 | { | |
3028 | return cq->device->poll_cq(cq, num_entries, wc); | |
3029 | } | |
3030 | ||
3031 | /** | |
3032 | * ib_peek_cq - Returns the number of unreaped completions currently | |
3033 | * on the specified CQ. | |
3034 | * @cq: The CQ to peek. | |
3035 | * @wc_cnt: A minimum number of unreaped completions to check for. | |
3036 | * | |
3037 | * If the number of unreaped completions is greater than or equal to wc_cnt, | |
3038 | * this function returns wc_cnt, otherwise, it returns the actual number of | |
3039 | * unreaped completions. | |
3040 | */ | |
3041 | int ib_peek_cq(struct ib_cq *cq, int wc_cnt); | |
3042 | ||
3043 | /** | |
3044 | * ib_req_notify_cq - Request completion notification on a CQ. | |
3045 | * @cq: The CQ to generate an event for. | |
ed23a727 RD |
3046 | * @flags: |
3047 | * Must contain exactly one of %IB_CQ_SOLICITED or %IB_CQ_NEXT_COMP | |
3048 | * to request an event on the next solicited event or next work | |
3049 | * completion at any type, respectively. %IB_CQ_REPORT_MISSED_EVENTS | |
3050 | * may also be |ed in to request a hint about missed events, as | |
3051 | * described below. | |
3052 | * | |
3053 | * Return Value: | |
3054 | * < 0 means an error occurred while requesting notification | |
3055 | * == 0 means notification was requested successfully, and if | |
3056 | * IB_CQ_REPORT_MISSED_EVENTS was passed in, then no events | |
3057 | * were missed and it is safe to wait for another event. In | |
3058 | * this case is it guaranteed that any work completions added | |
3059 | * to the CQ since the last CQ poll will trigger a completion | |
3060 | * notification event. | |
3061 | * > 0 is only returned if IB_CQ_REPORT_MISSED_EVENTS was passed | |
3062 | * in. It means that the consumer must poll the CQ again to | |
3063 | * make sure it is empty to avoid missing an event because of a | |
3064 | * race between requesting notification and an entry being | |
3065 | * added to the CQ. This return value means it is possible | |
3066 | * (but not guaranteed) that a work completion has been added | |
3067 | * to the CQ since the last poll without triggering a | |
3068 | * completion notification event. | |
1da177e4 LT |
3069 | */ |
3070 | static inline int ib_req_notify_cq(struct ib_cq *cq, | |
ed23a727 | 3071 | enum ib_cq_notify_flags flags) |
1da177e4 | 3072 | { |
ed23a727 | 3073 | return cq->device->req_notify_cq(cq, flags); |
1da177e4 LT |
3074 | } |
3075 | ||
3076 | /** | |
3077 | * ib_req_ncomp_notif - Request completion notification when there are | |
3078 | * at least the specified number of unreaped completions on the CQ. | |
3079 | * @cq: The CQ to generate an event for. | |
3080 | * @wc_cnt: The number of unreaped completions that should be on the | |
3081 | * CQ before an event is generated. | |
3082 | */ | |
3083 | static inline int ib_req_ncomp_notif(struct ib_cq *cq, int wc_cnt) | |
3084 | { | |
3085 | return cq->device->req_ncomp_notif ? | |
3086 | cq->device->req_ncomp_notif(cq, wc_cnt) : | |
3087 | -ENOSYS; | |
3088 | } | |
3089 | ||
9b513090 RC |
3090 | /** |
3091 | * ib_dma_mapping_error - check a DMA addr for error | |
3092 | * @dev: The device for which the dma_addr was created | |
3093 | * @dma_addr: The DMA address to check | |
3094 | */ | |
3095 | static inline int ib_dma_mapping_error(struct ib_device *dev, u64 dma_addr) | |
3096 | { | |
0957c29f | 3097 | return dma_mapping_error(dev->dma_device, dma_addr); |
9b513090 RC |
3098 | } |
3099 | ||
3100 | /** | |
3101 | * ib_dma_map_single - Map a kernel virtual address to DMA address | |
3102 | * @dev: The device for which the dma_addr is to be created | |
3103 | * @cpu_addr: The kernel virtual address | |
3104 | * @size: The size of the region in bytes | |
3105 | * @direction: The direction of the DMA | |
3106 | */ | |
3107 | static inline u64 ib_dma_map_single(struct ib_device *dev, | |
3108 | void *cpu_addr, size_t size, | |
3109 | enum dma_data_direction direction) | |
3110 | { | |
0957c29f | 3111 | return dma_map_single(dev->dma_device, cpu_addr, size, direction); |
9b513090 RC |
3112 | } |
3113 | ||
3114 | /** | |
3115 | * ib_dma_unmap_single - Destroy a mapping created by ib_dma_map_single() | |
3116 | * @dev: The device for which the DMA address was created | |
3117 | * @addr: The DMA address | |
3118 | * @size: The size of the region in bytes | |
3119 | * @direction: The direction of the DMA | |
3120 | */ | |
3121 | static inline void ib_dma_unmap_single(struct ib_device *dev, | |
3122 | u64 addr, size_t size, | |
3123 | enum dma_data_direction direction) | |
3124 | { | |
0957c29f | 3125 | dma_unmap_single(dev->dma_device, addr, size, direction); |
cb9fbc5c AK |
3126 | } |
3127 | ||
9b513090 RC |
3128 | /** |
3129 | * ib_dma_map_page - Map a physical page to DMA address | |
3130 | * @dev: The device for which the dma_addr is to be created | |
3131 | * @page: The page to be mapped | |
3132 | * @offset: The offset within the page | |
3133 | * @size: The size of the region in bytes | |
3134 | * @direction: The direction of the DMA | |
3135 | */ | |
3136 | static inline u64 ib_dma_map_page(struct ib_device *dev, | |
3137 | struct page *page, | |
3138 | unsigned long offset, | |
3139 | size_t size, | |
3140 | enum dma_data_direction direction) | |
3141 | { | |
0957c29f | 3142 | return dma_map_page(dev->dma_device, page, offset, size, direction); |
9b513090 RC |
3143 | } |
3144 | ||
3145 | /** | |
3146 | * ib_dma_unmap_page - Destroy a mapping created by ib_dma_map_page() | |
3147 | * @dev: The device for which the DMA address was created | |
3148 | * @addr: The DMA address | |
3149 | * @size: The size of the region in bytes | |
3150 | * @direction: The direction of the DMA | |
3151 | */ | |
3152 | static inline void ib_dma_unmap_page(struct ib_device *dev, | |
3153 | u64 addr, size_t size, | |
3154 | enum dma_data_direction direction) | |
3155 | { | |
0957c29f | 3156 | dma_unmap_page(dev->dma_device, addr, size, direction); |
9b513090 RC |
3157 | } |
3158 | ||
3159 | /** | |
3160 | * ib_dma_map_sg - Map a scatter/gather list to DMA addresses | |
3161 | * @dev: The device for which the DMA addresses are to be created | |
3162 | * @sg: The array of scatter/gather entries | |
3163 | * @nents: The number of scatter/gather entries | |
3164 | * @direction: The direction of the DMA | |
3165 | */ | |
3166 | static inline int ib_dma_map_sg(struct ib_device *dev, | |
3167 | struct scatterlist *sg, int nents, | |
3168 | enum dma_data_direction direction) | |
3169 | { | |
0957c29f | 3170 | return dma_map_sg(dev->dma_device, sg, nents, direction); |
9b513090 RC |
3171 | } |
3172 | ||
3173 | /** | |
3174 | * ib_dma_unmap_sg - Unmap a scatter/gather list of DMA addresses | |
3175 | * @dev: The device for which the DMA addresses were created | |
3176 | * @sg: The array of scatter/gather entries | |
3177 | * @nents: The number of scatter/gather entries | |
3178 | * @direction: The direction of the DMA | |
3179 | */ | |
3180 | static inline void ib_dma_unmap_sg(struct ib_device *dev, | |
3181 | struct scatterlist *sg, int nents, | |
3182 | enum dma_data_direction direction) | |
3183 | { | |
0957c29f | 3184 | dma_unmap_sg(dev->dma_device, sg, nents, direction); |
9b513090 RC |
3185 | } |
3186 | ||
cb9fbc5c AK |
3187 | static inline int ib_dma_map_sg_attrs(struct ib_device *dev, |
3188 | struct scatterlist *sg, int nents, | |
3189 | enum dma_data_direction direction, | |
00085f1e | 3190 | unsigned long dma_attrs) |
cb9fbc5c | 3191 | { |
0957c29f BVA |
3192 | return dma_map_sg_attrs(dev->dma_device, sg, nents, direction, |
3193 | dma_attrs); | |
cb9fbc5c AK |
3194 | } |
3195 | ||
3196 | static inline void ib_dma_unmap_sg_attrs(struct ib_device *dev, | |
3197 | struct scatterlist *sg, int nents, | |
3198 | enum dma_data_direction direction, | |
00085f1e | 3199 | unsigned long dma_attrs) |
cb9fbc5c | 3200 | { |
0957c29f | 3201 | dma_unmap_sg_attrs(dev->dma_device, sg, nents, direction, dma_attrs); |
cb9fbc5c | 3202 | } |
9b513090 RC |
3203 | /** |
3204 | * ib_sg_dma_address - Return the DMA address from a scatter/gather entry | |
3205 | * @dev: The device for which the DMA addresses were created | |
3206 | * @sg: The scatter/gather entry | |
ea58a595 MM |
3207 | * |
3208 | * Note: this function is obsolete. To do: change all occurrences of | |
3209 | * ib_sg_dma_address() into sg_dma_address(). | |
9b513090 RC |
3210 | */ |
3211 | static inline u64 ib_sg_dma_address(struct ib_device *dev, | |
3212 | struct scatterlist *sg) | |
3213 | { | |
d1998ef3 | 3214 | return sg_dma_address(sg); |
9b513090 RC |
3215 | } |
3216 | ||
3217 | /** | |
3218 | * ib_sg_dma_len - Return the DMA length from a scatter/gather entry | |
3219 | * @dev: The device for which the DMA addresses were created | |
3220 | * @sg: The scatter/gather entry | |
ea58a595 MM |
3221 | * |
3222 | * Note: this function is obsolete. To do: change all occurrences of | |
3223 | * ib_sg_dma_len() into sg_dma_len(). | |
9b513090 RC |
3224 | */ |
3225 | static inline unsigned int ib_sg_dma_len(struct ib_device *dev, | |
3226 | struct scatterlist *sg) | |
3227 | { | |
d1998ef3 | 3228 | return sg_dma_len(sg); |
9b513090 RC |
3229 | } |
3230 | ||
3231 | /** | |
3232 | * ib_dma_sync_single_for_cpu - Prepare DMA region to be accessed by CPU | |
3233 | * @dev: The device for which the DMA address was created | |
3234 | * @addr: The DMA address | |
3235 | * @size: The size of the region in bytes | |
3236 | * @dir: The direction of the DMA | |
3237 | */ | |
3238 | static inline void ib_dma_sync_single_for_cpu(struct ib_device *dev, | |
3239 | u64 addr, | |
3240 | size_t size, | |
3241 | enum dma_data_direction dir) | |
3242 | { | |
0957c29f | 3243 | dma_sync_single_for_cpu(dev->dma_device, addr, size, dir); |
9b513090 RC |
3244 | } |
3245 | ||
3246 | /** | |
3247 | * ib_dma_sync_single_for_device - Prepare DMA region to be accessed by device | |
3248 | * @dev: The device for which the DMA address was created | |
3249 | * @addr: The DMA address | |
3250 | * @size: The size of the region in bytes | |
3251 | * @dir: The direction of the DMA | |
3252 | */ | |
3253 | static inline void ib_dma_sync_single_for_device(struct ib_device *dev, | |
3254 | u64 addr, | |
3255 | size_t size, | |
3256 | enum dma_data_direction dir) | |
3257 | { | |
0957c29f | 3258 | dma_sync_single_for_device(dev->dma_device, addr, size, dir); |
9b513090 RC |
3259 | } |
3260 | ||
3261 | /** | |
3262 | * ib_dma_alloc_coherent - Allocate memory and map it for DMA | |
3263 | * @dev: The device for which the DMA address is requested | |
3264 | * @size: The size of the region to allocate in bytes | |
3265 | * @dma_handle: A pointer for returning the DMA address of the region | |
3266 | * @flag: memory allocator flags | |
3267 | */ | |
3268 | static inline void *ib_dma_alloc_coherent(struct ib_device *dev, | |
3269 | size_t size, | |
d43dbacf | 3270 | dma_addr_t *dma_handle, |
9b513090 RC |
3271 | gfp_t flag) |
3272 | { | |
0957c29f | 3273 | return dma_alloc_coherent(dev->dma_device, size, dma_handle, flag); |
9b513090 RC |
3274 | } |
3275 | ||
3276 | /** | |
3277 | * ib_dma_free_coherent - Free memory allocated by ib_dma_alloc_coherent() | |
3278 | * @dev: The device for which the DMA addresses were allocated | |
3279 | * @size: The size of the region | |
3280 | * @cpu_addr: the address returned by ib_dma_alloc_coherent() | |
3281 | * @dma_handle: the DMA address returned by ib_dma_alloc_coherent() | |
3282 | */ | |
3283 | static inline void ib_dma_free_coherent(struct ib_device *dev, | |
3284 | size_t size, void *cpu_addr, | |
d43dbacf | 3285 | dma_addr_t dma_handle) |
9b513090 | 3286 | { |
0957c29f | 3287 | dma_free_coherent(dev->dma_device, size, cpu_addr, dma_handle); |
9b513090 RC |
3288 | } |
3289 | ||
1da177e4 LT |
3290 | /** |
3291 | * ib_dereg_mr - Deregisters a memory region and removes it from the | |
3292 | * HCA translation table. | |
3293 | * @mr: The memory region to deregister. | |
7083e42e SM |
3294 | * |
3295 | * This function can fail, if the memory region has memory windows bound to it. | |
1da177e4 LT |
3296 | */ |
3297 | int ib_dereg_mr(struct ib_mr *mr); | |
3298 | ||
9bee178b SG |
3299 | struct ib_mr *ib_alloc_mr(struct ib_pd *pd, |
3300 | enum ib_mr_type mr_type, | |
3301 | u32 max_num_sg); | |
00f7ec36 | 3302 | |
00f7ec36 SW |
3303 | /** |
3304 | * ib_update_fast_reg_key - updates the key portion of the fast_reg MR | |
3305 | * R_Key and L_Key. | |
3306 | * @mr - struct ib_mr pointer to be updated. | |
3307 | * @newkey - new key to be used. | |
3308 | */ | |
3309 | static inline void ib_update_fast_reg_key(struct ib_mr *mr, u8 newkey) | |
3310 | { | |
3311 | mr->lkey = (mr->lkey & 0xffffff00) | newkey; | |
3312 | mr->rkey = (mr->rkey & 0xffffff00) | newkey; | |
3313 | } | |
3314 | ||
7083e42e SM |
3315 | /** |
3316 | * ib_inc_rkey - increments the key portion of the given rkey. Can be used | |
3317 | * for calculating a new rkey for type 2 memory windows. | |
3318 | * @rkey - the rkey to increment. | |
3319 | */ | |
3320 | static inline u32 ib_inc_rkey(u32 rkey) | |
3321 | { | |
3322 | const u32 mask = 0x000000ff; | |
3323 | return ((rkey + 1) & mask) | (rkey & ~mask); | |
3324 | } | |
3325 | ||
1da177e4 LT |
3326 | /** |
3327 | * ib_alloc_fmr - Allocates a unmapped fast memory region. | |
3328 | * @pd: The protection domain associated with the unmapped region. | |
3329 | * @mr_access_flags: Specifies the memory access rights. | |
3330 | * @fmr_attr: Attributes of the unmapped region. | |
3331 | * | |
3332 | * A fast memory region must be mapped before it can be used as part of | |
3333 | * a work request. | |
3334 | */ | |
3335 | struct ib_fmr *ib_alloc_fmr(struct ib_pd *pd, | |
3336 | int mr_access_flags, | |
3337 | struct ib_fmr_attr *fmr_attr); | |
3338 | ||
3339 | /** | |
3340 | * ib_map_phys_fmr - Maps a list of physical pages to a fast memory region. | |
3341 | * @fmr: The fast memory region to associate with the pages. | |
3342 | * @page_list: An array of physical pages to map to the fast memory region. | |
3343 | * @list_len: The number of pages in page_list. | |
3344 | * @iova: The I/O virtual address to use with the mapped region. | |
3345 | */ | |
3346 | static inline int ib_map_phys_fmr(struct ib_fmr *fmr, | |
3347 | u64 *page_list, int list_len, | |
3348 | u64 iova) | |
3349 | { | |
3350 | return fmr->device->map_phys_fmr(fmr, page_list, list_len, iova); | |
3351 | } | |
3352 | ||
3353 | /** | |
3354 | * ib_unmap_fmr - Removes the mapping from a list of fast memory regions. | |
3355 | * @fmr_list: A linked list of fast memory regions to unmap. | |
3356 | */ | |
3357 | int ib_unmap_fmr(struct list_head *fmr_list); | |
3358 | ||
3359 | /** | |
3360 | * ib_dealloc_fmr - Deallocates a fast memory region. | |
3361 | * @fmr: The fast memory region to deallocate. | |
3362 | */ | |
3363 | int ib_dealloc_fmr(struct ib_fmr *fmr); | |
3364 | ||
3365 | /** | |
3366 | * ib_attach_mcast - Attaches the specified QP to a multicast group. | |
3367 | * @qp: QP to attach to the multicast group. The QP must be type | |
3368 | * IB_QPT_UD. | |
3369 | * @gid: Multicast group GID. | |
3370 | * @lid: Multicast group LID in host byte order. | |
3371 | * | |
3372 | * In order to send and receive multicast packets, subnet | |
3373 | * administration must have created the multicast group and configured | |
3374 | * the fabric appropriately. The port associated with the specified | |
3375 | * QP must also be a member of the multicast group. | |
3376 | */ | |
3377 | int ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid); | |
3378 | ||
3379 | /** | |
3380 | * ib_detach_mcast - Detaches the specified QP from a multicast group. | |
3381 | * @qp: QP to detach from the multicast group. | |
3382 | * @gid: Multicast group GID. | |
3383 | * @lid: Multicast group LID in host byte order. | |
3384 | */ | |
3385 | int ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid); | |
3386 | ||
59991f94 SH |
3387 | /** |
3388 | * ib_alloc_xrcd - Allocates an XRC domain. | |
3389 | * @device: The device on which to allocate the XRC domain. | |
3390 | */ | |
3391 | struct ib_xrcd *ib_alloc_xrcd(struct ib_device *device); | |
3392 | ||
3393 | /** | |
3394 | * ib_dealloc_xrcd - Deallocates an XRC domain. | |
3395 | * @xrcd: The XRC domain to deallocate. | |
3396 | */ | |
3397 | int ib_dealloc_xrcd(struct ib_xrcd *xrcd); | |
3398 | ||
319a441d HHZ |
3399 | struct ib_flow *ib_create_flow(struct ib_qp *qp, |
3400 | struct ib_flow_attr *flow_attr, int domain); | |
3401 | int ib_destroy_flow(struct ib_flow *flow_id); | |
3402 | ||
1c636f80 EC |
3403 | static inline int ib_check_mr_access(int flags) |
3404 | { | |
3405 | /* | |
3406 | * Local write permission is required if remote write or | |
3407 | * remote atomic permission is also requested. | |
3408 | */ | |
3409 | if (flags & (IB_ACCESS_REMOTE_ATOMIC | IB_ACCESS_REMOTE_WRITE) && | |
3410 | !(flags & IB_ACCESS_LOCAL_WRITE)) | |
3411 | return -EINVAL; | |
3412 | ||
3413 | return 0; | |
3414 | } | |
3415 | ||
1b01d335 SG |
3416 | /** |
3417 | * ib_check_mr_status: lightweight check of MR status. | |
3418 | * This routine may provide status checks on a selected | |
3419 | * ib_mr. first use is for signature status check. | |
3420 | * | |
3421 | * @mr: A memory region. | |
3422 | * @check_mask: Bitmask of which checks to perform from | |
3423 | * ib_mr_status_check enumeration. | |
3424 | * @mr_status: The container of relevant status checks. | |
3425 | * failed checks will be indicated in the status bitmask | |
3426 | * and the relevant info shall be in the error item. | |
3427 | */ | |
3428 | int ib_check_mr_status(struct ib_mr *mr, u32 check_mask, | |
3429 | struct ib_mr_status *mr_status); | |
3430 | ||
9268f72d YK |
3431 | struct net_device *ib_get_net_dev_by_params(struct ib_device *dev, u8 port, |
3432 | u16 pkey, const union ib_gid *gid, | |
3433 | const struct sockaddr *addr); | |
5fd251c8 YH |
3434 | struct ib_wq *ib_create_wq(struct ib_pd *pd, |
3435 | struct ib_wq_init_attr *init_attr); | |
3436 | int ib_destroy_wq(struct ib_wq *wq); | |
3437 | int ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *attr, | |
3438 | u32 wq_attr_mask); | |
6d39786b YH |
3439 | struct ib_rwq_ind_table *ib_create_rwq_ind_table(struct ib_device *device, |
3440 | struct ib_rwq_ind_table_init_attr* | |
3441 | wq_ind_table_init_attr); | |
3442 | int ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *wq_ind_table); | |
9268f72d | 3443 | |
ff2ba993 | 3444 | int ib_map_mr_sg(struct ib_mr *mr, struct scatterlist *sg, int sg_nents, |
9aa8b321 | 3445 | unsigned int *sg_offset, unsigned int page_size); |
4c67e2bf SG |
3446 | |
3447 | static inline int | |
ff2ba993 | 3448 | ib_map_mr_sg_zbva(struct ib_mr *mr, struct scatterlist *sg, int sg_nents, |
9aa8b321 | 3449 | unsigned int *sg_offset, unsigned int page_size) |
4c67e2bf SG |
3450 | { |
3451 | int n; | |
3452 | ||
ff2ba993 | 3453 | n = ib_map_mr_sg(mr, sg, sg_nents, sg_offset, page_size); |
4c67e2bf SG |
3454 | mr->iova = 0; |
3455 | ||
3456 | return n; | |
3457 | } | |
3458 | ||
ff2ba993 | 3459 | int ib_sg_to_pages(struct ib_mr *mr, struct scatterlist *sgl, int sg_nents, |
9aa8b321 | 3460 | unsigned int *sg_offset, int (*set_page)(struct ib_mr *, u64)); |
4c67e2bf | 3461 | |
765d6774 SW |
3462 | void ib_drain_rq(struct ib_qp *qp); |
3463 | void ib_drain_sq(struct ib_qp *qp); | |
3464 | void ib_drain_qp(struct ib_qp *qp); | |
850d8fd7 | 3465 | |
c90ea9d8 | 3466 | int ib_resolve_eth_dmac(struct ib_device *device, |
90898850 | 3467 | struct rdma_ah_attr *ah_attr); |
1da177e4 | 3468 | #endif /* IB_VERBS_H */ |