Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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. |
Roland Dreier | 2a1d9b7 | 2005-08-10 23:03:10 -0700 | [diff] [blame] | 7 | * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. |
Roland Dreier | f7c6a7b | 2007-03-04 16:15:11 -0800 | [diff] [blame] | 8 | * Copyright (c) 2005, 2006, 2007 Cisco Systems. All rights reserved. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | */ |
| 38 | |
| 39 | #if !defined(IB_VERBS_H) |
| 40 | #define IB_VERBS_H |
| 41 | |
| 42 | #include <linux/types.h> |
| 43 | #include <linux/device.h> |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 44 | #include <linux/mm.h> |
| 45 | #include <linux/dma-mapping.h> |
Michael S. Tsirkin | 459d6e2 | 2007-02-04 14:11:55 -0800 | [diff] [blame] | 46 | #include <linux/kref.h> |
Dotan Barak | bfb3ea1 | 2007-07-31 16:49:15 +0300 | [diff] [blame] | 47 | #include <linux/list.h> |
| 48 | #include <linux/rwsem.h> |
Adrian Bunk | 87ae9af | 2007-10-30 10:35:04 +0100 | [diff] [blame] | 49 | #include <linux/scatterlist.h> |
Tejun Heo | f062671 | 2010-10-19 15:24:36 +0000 | [diff] [blame] | 50 | #include <linux/workqueue.h> |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 51 | |
Arun Sharma | 60063497 | 2011-07-26 16:09:06 -0700 | [diff] [blame] | 52 | #include <linux/atomic.h> |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 53 | #include <asm/uaccess.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | |
Tejun Heo | f062671 | 2010-10-19 15:24:36 +0000 | [diff] [blame] | 55 | extern struct workqueue_struct *ib_wq; |
| 56 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | union ib_gid { |
| 58 | u8 raw[16]; |
| 59 | struct { |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 60 | __be64 subnet_prefix; |
| 61 | __be64 interface_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | } global; |
| 63 | }; |
| 64 | |
Tom Tucker | 07ebafb | 2006-08-03 16:02:42 -0500 | [diff] [blame] | 65 | enum rdma_node_type { |
| 66 | /* IB values map to NodeInfo:NodeType. */ |
| 67 | RDMA_NODE_IB_CA = 1, |
| 68 | RDMA_NODE_IB_SWITCH, |
| 69 | RDMA_NODE_IB_ROUTER, |
| 70 | RDMA_NODE_RNIC |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | }; |
| 72 | |
Tom Tucker | 07ebafb | 2006-08-03 16:02:42 -0500 | [diff] [blame] | 73 | enum rdma_transport_type { |
| 74 | RDMA_TRANSPORT_IB, |
| 75 | RDMA_TRANSPORT_IWARP |
| 76 | }; |
| 77 | |
| 78 | enum rdma_transport_type |
| 79 | rdma_node_get_transport(enum rdma_node_type node_type) __attribute_const__; |
| 80 | |
Eli Cohen | a3f5ada | 2010-09-27 17:51:10 -0700 | [diff] [blame] | 81 | enum rdma_link_layer { |
| 82 | IB_LINK_LAYER_UNSPECIFIED, |
| 83 | IB_LINK_LAYER_INFINIBAND, |
| 84 | IB_LINK_LAYER_ETHERNET, |
| 85 | }; |
| 86 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | enum ib_device_cap_flags { |
| 88 | IB_DEVICE_RESIZE_MAX_WR = 1, |
| 89 | IB_DEVICE_BAD_PKEY_CNTR = (1<<1), |
| 90 | IB_DEVICE_BAD_QKEY_CNTR = (1<<2), |
| 91 | IB_DEVICE_RAW_MULTI = (1<<3), |
| 92 | IB_DEVICE_AUTO_PATH_MIG = (1<<4), |
| 93 | IB_DEVICE_CHANGE_PHY_PORT = (1<<5), |
| 94 | IB_DEVICE_UD_AV_PORT_ENFORCE = (1<<6), |
| 95 | IB_DEVICE_CURR_QP_STATE_MOD = (1<<7), |
| 96 | IB_DEVICE_SHUTDOWN_PORT = (1<<8), |
| 97 | IB_DEVICE_INIT_TYPE = (1<<9), |
| 98 | IB_DEVICE_PORT_ACTIVE_EVENT = (1<<10), |
| 99 | IB_DEVICE_SYS_IMAGE_GUID = (1<<11), |
| 100 | IB_DEVICE_RC_RNR_NAK_GEN = (1<<12), |
| 101 | IB_DEVICE_SRQ_RESIZE = (1<<13), |
| 102 | IB_DEVICE_N_NOTIFY_CQ = (1<<14), |
Steve Wise | 96f15c0 | 2008-07-14 23:48:53 -0700 | [diff] [blame] | 103 | IB_DEVICE_LOCAL_DMA_LKEY = (1<<15), |
Roland Dreier | 0f39cf3 | 2008-04-16 21:09:32 -0700 | [diff] [blame] | 104 | IB_DEVICE_RESERVED = (1<<16), /* old SEND_W_INV */ |
Eli Cohen | e0605d9 | 2008-01-30 18:30:57 +0200 | [diff] [blame] | 105 | IB_DEVICE_MEM_WINDOW = (1<<17), |
| 106 | /* |
| 107 | * Devices should set IB_DEVICE_UD_IP_SUM if they support |
| 108 | * insertion of UDP and TCP checksum on outgoing UD IPoIB |
| 109 | * messages and can verify the validity of checksum for |
| 110 | * incoming messages. Setting this flag implies that the |
| 111 | * IPoIB driver may set NETIF_F_IP_CSUM for datagram mode. |
| 112 | */ |
| 113 | IB_DEVICE_UD_IP_CSUM = (1<<18), |
Eli Cohen | c93570f | 2008-04-16 21:09:27 -0700 | [diff] [blame] | 114 | IB_DEVICE_UD_TSO = (1<<19), |
Sean Hefty | 59991f9 | 2011-05-23 17:52:46 -0700 | [diff] [blame] | 115 | IB_DEVICE_XRC = (1<<20), |
Steve Wise | 00f7ec3 | 2008-07-14 23:48:45 -0700 | [diff] [blame] | 116 | IB_DEVICE_MEM_MGT_EXTENSIONS = (1<<21), |
Ron Livne | 47ee1b9 | 2008-07-14 23:48:48 -0700 | [diff] [blame] | 117 | IB_DEVICE_BLOCK_MULTICAST_LOOPBACK = (1<<22), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | }; |
| 119 | |
| 120 | enum ib_atomic_cap { |
| 121 | IB_ATOMIC_NONE, |
| 122 | IB_ATOMIC_HCA, |
| 123 | IB_ATOMIC_GLOB |
| 124 | }; |
| 125 | |
| 126 | struct ib_device_attr { |
| 127 | u64 fw_ver; |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 128 | __be64 sys_image_guid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | u64 max_mr_size; |
| 130 | u64 page_size_cap; |
| 131 | u32 vendor_id; |
| 132 | u32 vendor_part_id; |
| 133 | u32 hw_ver; |
| 134 | int max_qp; |
| 135 | int max_qp_wr; |
| 136 | int device_cap_flags; |
| 137 | int max_sge; |
| 138 | int max_sge_rd; |
| 139 | int max_cq; |
| 140 | int max_cqe; |
| 141 | int max_mr; |
| 142 | int max_pd; |
| 143 | int max_qp_rd_atom; |
| 144 | int max_ee_rd_atom; |
| 145 | int max_res_rd_atom; |
| 146 | int max_qp_init_rd_atom; |
| 147 | int max_ee_init_rd_atom; |
| 148 | enum ib_atomic_cap atomic_cap; |
Vladimir Sokolovsky | 5e80ba8 | 2010-04-14 17:23:01 +0300 | [diff] [blame] | 149 | enum ib_atomic_cap masked_atomic_cap; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | int max_ee; |
| 151 | int max_rdd; |
| 152 | int max_mw; |
| 153 | int max_raw_ipv6_qp; |
| 154 | int max_raw_ethy_qp; |
| 155 | int max_mcast_grp; |
| 156 | int max_mcast_qp_attach; |
| 157 | int max_total_mcast_qp_attach; |
| 158 | int max_ah; |
| 159 | int max_fmr; |
| 160 | int max_map_per_fmr; |
| 161 | int max_srq; |
| 162 | int max_srq_wr; |
| 163 | int max_srq_sge; |
Steve Wise | 00f7ec3 | 2008-07-14 23:48:45 -0700 | [diff] [blame] | 164 | unsigned int max_fast_reg_page_list_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | u16 max_pkeys; |
| 166 | u8 local_ca_ack_delay; |
| 167 | }; |
| 168 | |
| 169 | enum ib_mtu { |
| 170 | IB_MTU_256 = 1, |
| 171 | IB_MTU_512 = 2, |
| 172 | IB_MTU_1024 = 3, |
| 173 | IB_MTU_2048 = 4, |
| 174 | IB_MTU_4096 = 5 |
| 175 | }; |
| 176 | |
| 177 | static inline int ib_mtu_enum_to_int(enum ib_mtu mtu) |
| 178 | { |
| 179 | switch (mtu) { |
| 180 | case IB_MTU_256: return 256; |
| 181 | case IB_MTU_512: return 512; |
| 182 | case IB_MTU_1024: return 1024; |
| 183 | case IB_MTU_2048: return 2048; |
| 184 | case IB_MTU_4096: return 4096; |
| 185 | default: return -1; |
| 186 | } |
| 187 | } |
| 188 | |
| 189 | enum ib_port_state { |
| 190 | IB_PORT_NOP = 0, |
| 191 | IB_PORT_DOWN = 1, |
| 192 | IB_PORT_INIT = 2, |
| 193 | IB_PORT_ARMED = 3, |
| 194 | IB_PORT_ACTIVE = 4, |
| 195 | IB_PORT_ACTIVE_DEFER = 5 |
| 196 | }; |
| 197 | |
| 198 | enum ib_port_cap_flags { |
| 199 | IB_PORT_SM = 1 << 1, |
| 200 | IB_PORT_NOTICE_SUP = 1 << 2, |
| 201 | IB_PORT_TRAP_SUP = 1 << 3, |
| 202 | IB_PORT_OPT_IPD_SUP = 1 << 4, |
| 203 | IB_PORT_AUTO_MIGR_SUP = 1 << 5, |
| 204 | IB_PORT_SL_MAP_SUP = 1 << 6, |
| 205 | IB_PORT_MKEY_NVRAM = 1 << 7, |
| 206 | IB_PORT_PKEY_NVRAM = 1 << 8, |
| 207 | IB_PORT_LED_INFO_SUP = 1 << 9, |
| 208 | IB_PORT_SM_DISABLED = 1 << 10, |
| 209 | IB_PORT_SYS_IMAGE_GUID_SUP = 1 << 11, |
| 210 | IB_PORT_PKEY_SW_EXT_PORT_TRAP_SUP = 1 << 12, |
Marcel Apfelbaum | 71eeba1 | 2011-10-05 14:21:47 +0300 | [diff] [blame] | 211 | IB_PORT_EXTENDED_SPEEDS_SUP = 1 << 14, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | IB_PORT_CM_SUP = 1 << 16, |
| 213 | IB_PORT_SNMP_TUNNEL_SUP = 1 << 17, |
| 214 | IB_PORT_REINIT_SUP = 1 << 18, |
| 215 | IB_PORT_DEVICE_MGMT_SUP = 1 << 19, |
| 216 | IB_PORT_VENDOR_CLASS_SUP = 1 << 20, |
| 217 | IB_PORT_DR_NOTICE_SUP = 1 << 21, |
| 218 | IB_PORT_CAP_MASK_NOTICE_SUP = 1 << 22, |
| 219 | IB_PORT_BOOT_MGMT_SUP = 1 << 23, |
| 220 | IB_PORT_LINK_LATENCY_SUP = 1 << 24, |
| 221 | IB_PORT_CLIENT_REG_SUP = 1 << 25 |
| 222 | }; |
| 223 | |
| 224 | enum ib_port_width { |
| 225 | IB_WIDTH_1X = 1, |
| 226 | IB_WIDTH_4X = 2, |
| 227 | IB_WIDTH_8X = 4, |
| 228 | IB_WIDTH_12X = 8 |
| 229 | }; |
| 230 | |
| 231 | static inline int ib_width_enum_to_int(enum ib_port_width width) |
| 232 | { |
| 233 | switch (width) { |
| 234 | case IB_WIDTH_1X: return 1; |
| 235 | case IB_WIDTH_4X: return 4; |
| 236 | case IB_WIDTH_8X: return 8; |
| 237 | case IB_WIDTH_12X: return 12; |
| 238 | default: return -1; |
| 239 | } |
| 240 | } |
| 241 | |
Or Gerlitz | 2e96691 | 2012-02-28 18:49:50 +0200 | [diff] [blame] | 242 | enum ib_port_speed { |
| 243 | IB_SPEED_SDR = 1, |
| 244 | IB_SPEED_DDR = 2, |
| 245 | IB_SPEED_QDR = 4, |
| 246 | IB_SPEED_FDR10 = 8, |
| 247 | IB_SPEED_FDR = 16, |
| 248 | IB_SPEED_EDR = 32 |
| 249 | }; |
| 250 | |
Steve Wise | 7f624d0 | 2008-07-14 23:48:48 -0700 | [diff] [blame] | 251 | struct ib_protocol_stats { |
| 252 | /* TBD... */ |
| 253 | }; |
| 254 | |
| 255 | struct iw_protocol_stats { |
| 256 | u64 ipInReceives; |
| 257 | u64 ipInHdrErrors; |
| 258 | u64 ipInTooBigErrors; |
| 259 | u64 ipInNoRoutes; |
| 260 | u64 ipInAddrErrors; |
| 261 | u64 ipInUnknownProtos; |
| 262 | u64 ipInTruncatedPkts; |
| 263 | u64 ipInDiscards; |
| 264 | u64 ipInDelivers; |
| 265 | u64 ipOutForwDatagrams; |
| 266 | u64 ipOutRequests; |
| 267 | u64 ipOutDiscards; |
| 268 | u64 ipOutNoRoutes; |
| 269 | u64 ipReasmTimeout; |
| 270 | u64 ipReasmReqds; |
| 271 | u64 ipReasmOKs; |
| 272 | u64 ipReasmFails; |
| 273 | u64 ipFragOKs; |
| 274 | u64 ipFragFails; |
| 275 | u64 ipFragCreates; |
| 276 | u64 ipInMcastPkts; |
| 277 | u64 ipOutMcastPkts; |
| 278 | u64 ipInBcastPkts; |
| 279 | u64 ipOutBcastPkts; |
| 280 | |
| 281 | u64 tcpRtoAlgorithm; |
| 282 | u64 tcpRtoMin; |
| 283 | u64 tcpRtoMax; |
| 284 | u64 tcpMaxConn; |
| 285 | u64 tcpActiveOpens; |
| 286 | u64 tcpPassiveOpens; |
| 287 | u64 tcpAttemptFails; |
| 288 | u64 tcpEstabResets; |
| 289 | u64 tcpCurrEstab; |
| 290 | u64 tcpInSegs; |
| 291 | u64 tcpOutSegs; |
| 292 | u64 tcpRetransSegs; |
| 293 | u64 tcpInErrs; |
| 294 | u64 tcpOutRsts; |
| 295 | }; |
| 296 | |
| 297 | union rdma_protocol_stats { |
| 298 | struct ib_protocol_stats ib; |
| 299 | struct iw_protocol_stats iw; |
| 300 | }; |
| 301 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 302 | struct ib_port_attr { |
| 303 | enum ib_port_state state; |
| 304 | enum ib_mtu max_mtu; |
| 305 | enum ib_mtu active_mtu; |
| 306 | int gid_tbl_len; |
| 307 | u32 port_cap_flags; |
| 308 | u32 max_msg_sz; |
| 309 | u32 bad_pkey_cntr; |
| 310 | u32 qkey_viol_cntr; |
| 311 | u16 pkey_tbl_len; |
| 312 | u16 lid; |
| 313 | u16 sm_lid; |
| 314 | u8 lmc; |
| 315 | u8 max_vl_num; |
| 316 | u8 sm_sl; |
| 317 | u8 subnet_timeout; |
| 318 | u8 init_type_reply; |
| 319 | u8 active_width; |
| 320 | u8 active_speed; |
| 321 | u8 phys_state; |
| 322 | }; |
| 323 | |
| 324 | enum ib_device_modify_flags { |
Roland Dreier | c5bcbbb | 2006-02-02 09:47:14 -0800 | [diff] [blame] | 325 | IB_DEVICE_MODIFY_SYS_IMAGE_GUID = 1 << 0, |
| 326 | IB_DEVICE_MODIFY_NODE_DESC = 1 << 1 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | }; |
| 328 | |
| 329 | struct ib_device_modify { |
| 330 | u64 sys_image_guid; |
Roland Dreier | c5bcbbb | 2006-02-02 09:47:14 -0800 | [diff] [blame] | 331 | char node_desc[64]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | }; |
| 333 | |
| 334 | enum ib_port_modify_flags { |
| 335 | IB_PORT_SHUTDOWN = 1, |
| 336 | IB_PORT_INIT_TYPE = (1<<2), |
| 337 | IB_PORT_RESET_QKEY_CNTR = (1<<3) |
| 338 | }; |
| 339 | |
| 340 | struct ib_port_modify { |
| 341 | u32 set_port_cap_mask; |
| 342 | u32 clr_port_cap_mask; |
| 343 | u8 init_type; |
| 344 | }; |
| 345 | |
| 346 | enum ib_event_type { |
| 347 | IB_EVENT_CQ_ERR, |
| 348 | IB_EVENT_QP_FATAL, |
| 349 | IB_EVENT_QP_REQ_ERR, |
| 350 | IB_EVENT_QP_ACCESS_ERR, |
| 351 | IB_EVENT_COMM_EST, |
| 352 | IB_EVENT_SQ_DRAINED, |
| 353 | IB_EVENT_PATH_MIG, |
| 354 | IB_EVENT_PATH_MIG_ERR, |
| 355 | IB_EVENT_DEVICE_FATAL, |
| 356 | IB_EVENT_PORT_ACTIVE, |
| 357 | IB_EVENT_PORT_ERR, |
| 358 | IB_EVENT_LID_CHANGE, |
| 359 | IB_EVENT_PKEY_CHANGE, |
Roland Dreier | d41fcc6 | 2005-08-18 12:23:08 -0700 | [diff] [blame] | 360 | IB_EVENT_SM_CHANGE, |
| 361 | IB_EVENT_SRQ_ERR, |
| 362 | IB_EVENT_SRQ_LIMIT_REACHED, |
Leonid Arsh | 63942c9 | 2006-06-17 20:37:35 -0700 | [diff] [blame] | 363 | IB_EVENT_QP_LAST_WQE_REACHED, |
Or Gerlitz | 761d90e | 2011-06-15 14:39:29 +0000 | [diff] [blame] | 364 | IB_EVENT_CLIENT_REREGISTER, |
| 365 | IB_EVENT_GID_CHANGE, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | }; |
| 367 | |
| 368 | struct ib_event { |
| 369 | struct ib_device *device; |
| 370 | union { |
| 371 | struct ib_cq *cq; |
| 372 | struct ib_qp *qp; |
Roland Dreier | d41fcc6 | 2005-08-18 12:23:08 -0700 | [diff] [blame] | 373 | struct ib_srq *srq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | u8 port_num; |
| 375 | } element; |
| 376 | enum ib_event_type event; |
| 377 | }; |
| 378 | |
| 379 | struct ib_event_handler { |
| 380 | struct ib_device *device; |
| 381 | void (*handler)(struct ib_event_handler *, struct ib_event *); |
| 382 | struct list_head list; |
| 383 | }; |
| 384 | |
| 385 | #define INIT_IB_EVENT_HANDLER(_ptr, _device, _handler) \ |
| 386 | do { \ |
| 387 | (_ptr)->device = _device; \ |
| 388 | (_ptr)->handler = _handler; \ |
| 389 | INIT_LIST_HEAD(&(_ptr)->list); \ |
| 390 | } while (0) |
| 391 | |
| 392 | struct ib_global_route { |
| 393 | union ib_gid dgid; |
| 394 | u32 flow_label; |
| 395 | u8 sgid_index; |
| 396 | u8 hop_limit; |
| 397 | u8 traffic_class; |
| 398 | }; |
| 399 | |
Hal Rosenstock | 513789e | 2005-07-27 11:45:34 -0700 | [diff] [blame] | 400 | struct ib_grh { |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 401 | __be32 version_tclass_flow; |
| 402 | __be16 paylen; |
Hal Rosenstock | 513789e | 2005-07-27 11:45:34 -0700 | [diff] [blame] | 403 | u8 next_hdr; |
| 404 | u8 hop_limit; |
| 405 | union ib_gid sgid; |
| 406 | union ib_gid dgid; |
| 407 | }; |
| 408 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | enum { |
| 410 | IB_MULTICAST_QPN = 0xffffff |
| 411 | }; |
| 412 | |
Harvey Harrison | f3a7c66 | 2009-02-14 22:58:35 -0800 | [diff] [blame] | 413 | #define IB_LID_PERMISSIVE cpu_to_be16(0xFFFF) |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 414 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | enum ib_ah_flags { |
| 416 | IB_AH_GRH = 1 |
| 417 | }; |
| 418 | |
Jack Morgenstein | bf6a9e3 | 2006-04-10 09:43:47 -0700 | [diff] [blame] | 419 | enum ib_rate { |
| 420 | IB_RATE_PORT_CURRENT = 0, |
| 421 | IB_RATE_2_5_GBPS = 2, |
| 422 | IB_RATE_5_GBPS = 5, |
| 423 | IB_RATE_10_GBPS = 3, |
| 424 | IB_RATE_20_GBPS = 6, |
| 425 | IB_RATE_30_GBPS = 4, |
| 426 | IB_RATE_40_GBPS = 7, |
| 427 | IB_RATE_60_GBPS = 8, |
| 428 | IB_RATE_80_GBPS = 9, |
Marcel Apfelbaum | 71eeba1 | 2011-10-05 14:21:47 +0300 | [diff] [blame] | 429 | IB_RATE_120_GBPS = 10, |
| 430 | IB_RATE_14_GBPS = 11, |
| 431 | IB_RATE_56_GBPS = 12, |
| 432 | IB_RATE_112_GBPS = 13, |
| 433 | IB_RATE_168_GBPS = 14, |
| 434 | IB_RATE_25_GBPS = 15, |
| 435 | IB_RATE_100_GBPS = 16, |
| 436 | IB_RATE_200_GBPS = 17, |
| 437 | IB_RATE_300_GBPS = 18 |
Jack Morgenstein | bf6a9e3 | 2006-04-10 09:43:47 -0700 | [diff] [blame] | 438 | }; |
| 439 | |
| 440 | /** |
| 441 | * ib_rate_to_mult - Convert the IB rate enum to a multiple of the |
| 442 | * base rate of 2.5 Gbit/sec. For example, IB_RATE_5_GBPS will be |
| 443 | * converted to 2, since 5 Gbit/sec is 2 * 2.5 Gbit/sec. |
| 444 | * @rate: rate to convert. |
| 445 | */ |
| 446 | int ib_rate_to_mult(enum ib_rate rate) __attribute_const__; |
| 447 | |
| 448 | /** |
Marcel Apfelbaum | 71eeba1 | 2011-10-05 14:21:47 +0300 | [diff] [blame] | 449 | * ib_rate_to_mbps - Convert the IB rate enum to Mbps. |
| 450 | * For example, IB_RATE_2_5_GBPS will be converted to 2500. |
| 451 | * @rate: rate to convert. |
| 452 | */ |
| 453 | int ib_rate_to_mbps(enum ib_rate rate) __attribute_const__; |
| 454 | |
| 455 | /** |
Jack Morgenstein | bf6a9e3 | 2006-04-10 09:43:47 -0700 | [diff] [blame] | 456 | * mult_to_ib_rate - Convert a multiple of 2.5 Gbit/sec to an IB rate |
| 457 | * enum. |
| 458 | * @mult: multiple to convert. |
| 459 | */ |
| 460 | enum ib_rate mult_to_ib_rate(int mult) __attribute_const__; |
| 461 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | struct ib_ah_attr { |
| 463 | struct ib_global_route grh; |
| 464 | u16 dlid; |
| 465 | u8 sl; |
| 466 | u8 src_path_bits; |
| 467 | u8 static_rate; |
| 468 | u8 ah_flags; |
| 469 | u8 port_num; |
| 470 | }; |
| 471 | |
| 472 | enum ib_wc_status { |
| 473 | IB_WC_SUCCESS, |
| 474 | IB_WC_LOC_LEN_ERR, |
| 475 | IB_WC_LOC_QP_OP_ERR, |
| 476 | IB_WC_LOC_EEC_OP_ERR, |
| 477 | IB_WC_LOC_PROT_ERR, |
| 478 | IB_WC_WR_FLUSH_ERR, |
| 479 | IB_WC_MW_BIND_ERR, |
| 480 | IB_WC_BAD_RESP_ERR, |
| 481 | IB_WC_LOC_ACCESS_ERR, |
| 482 | IB_WC_REM_INV_REQ_ERR, |
| 483 | IB_WC_REM_ACCESS_ERR, |
| 484 | IB_WC_REM_OP_ERR, |
| 485 | IB_WC_RETRY_EXC_ERR, |
| 486 | IB_WC_RNR_RETRY_EXC_ERR, |
| 487 | IB_WC_LOC_RDD_VIOL_ERR, |
| 488 | IB_WC_REM_INV_RD_REQ_ERR, |
| 489 | IB_WC_REM_ABORT_ERR, |
| 490 | IB_WC_INV_EECN_ERR, |
| 491 | IB_WC_INV_EEC_STATE_ERR, |
| 492 | IB_WC_FATAL_ERR, |
| 493 | IB_WC_RESP_TIMEOUT_ERR, |
| 494 | IB_WC_GENERAL_ERR |
| 495 | }; |
| 496 | |
| 497 | enum ib_wc_opcode { |
| 498 | IB_WC_SEND, |
| 499 | IB_WC_RDMA_WRITE, |
| 500 | IB_WC_RDMA_READ, |
| 501 | IB_WC_COMP_SWAP, |
| 502 | IB_WC_FETCH_ADD, |
| 503 | IB_WC_BIND_MW, |
Eli Cohen | c93570f | 2008-04-16 21:09:27 -0700 | [diff] [blame] | 504 | IB_WC_LSO, |
Steve Wise | 00f7ec3 | 2008-07-14 23:48:45 -0700 | [diff] [blame] | 505 | IB_WC_LOCAL_INV, |
| 506 | IB_WC_FAST_REG_MR, |
Vladimir Sokolovsky | 5e80ba8 | 2010-04-14 17:23:01 +0300 | [diff] [blame] | 507 | IB_WC_MASKED_COMP_SWAP, |
| 508 | IB_WC_MASKED_FETCH_ADD, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | /* |
| 510 | * Set value of IB_WC_RECV so consumers can test if a completion is a |
| 511 | * receive by testing (opcode & IB_WC_RECV). |
| 512 | */ |
| 513 | IB_WC_RECV = 1 << 7, |
| 514 | IB_WC_RECV_RDMA_WITH_IMM |
| 515 | }; |
| 516 | |
| 517 | enum ib_wc_flags { |
| 518 | IB_WC_GRH = 1, |
Steve Wise | 00f7ec3 | 2008-07-14 23:48:45 -0700 | [diff] [blame] | 519 | IB_WC_WITH_IMM = (1<<1), |
| 520 | IB_WC_WITH_INVALIDATE = (1<<2), |
Or Gerlitz | d927d50 | 2012-01-11 19:03:51 +0200 | [diff] [blame] | 521 | IB_WC_IP_CSUM_OK = (1<<3), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | }; |
| 523 | |
| 524 | struct ib_wc { |
| 525 | u64 wr_id; |
| 526 | enum ib_wc_status status; |
| 527 | enum ib_wc_opcode opcode; |
| 528 | u32 vendor_err; |
| 529 | u32 byte_len; |
Michael S. Tsirkin | 062dbb6 | 2006-12-31 21:09:42 +0200 | [diff] [blame] | 530 | struct ib_qp *qp; |
Steve Wise | 00f7ec3 | 2008-07-14 23:48:45 -0700 | [diff] [blame] | 531 | union { |
| 532 | __be32 imm_data; |
| 533 | u32 invalidate_rkey; |
| 534 | } ex; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | u32 src_qp; |
| 536 | int wc_flags; |
| 537 | u16 pkey_index; |
| 538 | u16 slid; |
| 539 | u8 sl; |
| 540 | u8 dlid_path_bits; |
| 541 | u8 port_num; /* valid only for DR SMPs on switches */ |
| 542 | }; |
| 543 | |
Roland Dreier | ed23a72 | 2007-05-06 21:02:48 -0700 | [diff] [blame] | 544 | enum ib_cq_notify_flags { |
| 545 | IB_CQ_SOLICITED = 1 << 0, |
| 546 | IB_CQ_NEXT_COMP = 1 << 1, |
| 547 | IB_CQ_SOLICITED_MASK = IB_CQ_SOLICITED | IB_CQ_NEXT_COMP, |
| 548 | IB_CQ_REPORT_MISSED_EVENTS = 1 << 2, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 549 | }; |
| 550 | |
Sean Hefty | 96104ed | 2011-05-23 16:31:36 -0700 | [diff] [blame] | 551 | enum ib_srq_type { |
Sean Hefty | 418d513 | 2011-05-23 19:42:29 -0700 | [diff] [blame] | 552 | IB_SRQT_BASIC, |
| 553 | IB_SRQT_XRC |
Sean Hefty | 96104ed | 2011-05-23 16:31:36 -0700 | [diff] [blame] | 554 | }; |
| 555 | |
Roland Dreier | d41fcc6 | 2005-08-18 12:23:08 -0700 | [diff] [blame] | 556 | enum ib_srq_attr_mask { |
| 557 | IB_SRQ_MAX_WR = 1 << 0, |
| 558 | IB_SRQ_LIMIT = 1 << 1, |
| 559 | }; |
| 560 | |
| 561 | struct ib_srq_attr { |
| 562 | u32 max_wr; |
| 563 | u32 max_sge; |
| 564 | u32 srq_limit; |
| 565 | }; |
| 566 | |
| 567 | struct ib_srq_init_attr { |
| 568 | void (*event_handler)(struct ib_event *, void *); |
| 569 | void *srq_context; |
| 570 | struct ib_srq_attr attr; |
Sean Hefty | 96104ed | 2011-05-23 16:31:36 -0700 | [diff] [blame] | 571 | enum ib_srq_type srq_type; |
Sean Hefty | 418d513 | 2011-05-23 19:42:29 -0700 | [diff] [blame] | 572 | |
| 573 | union { |
| 574 | struct { |
| 575 | struct ib_xrcd *xrcd; |
| 576 | struct ib_cq *cq; |
| 577 | } xrc; |
| 578 | } ext; |
Roland Dreier | d41fcc6 | 2005-08-18 12:23:08 -0700 | [diff] [blame] | 579 | }; |
| 580 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | struct ib_qp_cap { |
| 582 | u32 max_send_wr; |
| 583 | u32 max_recv_wr; |
| 584 | u32 max_send_sge; |
| 585 | u32 max_recv_sge; |
| 586 | u32 max_inline_data; |
| 587 | }; |
| 588 | |
| 589 | enum ib_sig_type { |
| 590 | IB_SIGNAL_ALL_WR, |
| 591 | IB_SIGNAL_REQ_WR |
| 592 | }; |
| 593 | |
| 594 | enum ib_qp_type { |
| 595 | /* |
| 596 | * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries |
| 597 | * here (and in that order) since the MAD layer uses them as |
| 598 | * indices into a 2-entry table. |
| 599 | */ |
| 600 | IB_QPT_SMI, |
| 601 | IB_QPT_GSI, |
| 602 | |
| 603 | IB_QPT_RC, |
| 604 | IB_QPT_UC, |
| 605 | IB_QPT_UD, |
| 606 | IB_QPT_RAW_IPV6, |
Sean Hefty | b42b63c | 2011-05-23 19:59:25 -0700 | [diff] [blame] | 607 | IB_QPT_RAW_ETHERTYPE, |
Or Gerlitz | c938a61 | 2012-03-01 12:17:51 +0200 | [diff] [blame] | 608 | IB_QPT_RAW_PACKET = 8, |
Sean Hefty | b42b63c | 2011-05-23 19:59:25 -0700 | [diff] [blame] | 609 | IB_QPT_XRC_INI = 9, |
| 610 | IB_QPT_XRC_TGT, |
| 611 | IB_QPT_MAX |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 612 | }; |
| 613 | |
Eli Cohen | b846f25 | 2008-04-16 21:09:27 -0700 | [diff] [blame] | 614 | enum ib_qp_create_flags { |
Ron Livne | 47ee1b9 | 2008-07-14 23:48:48 -0700 | [diff] [blame] | 615 | IB_QP_CREATE_IPOIB_UD_LSO = 1 << 0, |
| 616 | IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK = 1 << 1, |
Eli Cohen | b846f25 | 2008-04-16 21:09:27 -0700 | [diff] [blame] | 617 | }; |
| 618 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 619 | struct ib_qp_init_attr { |
| 620 | void (*event_handler)(struct ib_event *, void *); |
| 621 | void *qp_context; |
| 622 | struct ib_cq *send_cq; |
| 623 | struct ib_cq *recv_cq; |
| 624 | struct ib_srq *srq; |
Sean Hefty | b42b63c | 2011-05-23 19:59:25 -0700 | [diff] [blame] | 625 | struct ib_xrcd *xrcd; /* XRC TGT QPs only */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 626 | struct ib_qp_cap cap; |
| 627 | enum ib_sig_type sq_sig_type; |
| 628 | enum ib_qp_type qp_type; |
Eli Cohen | b846f25 | 2008-04-16 21:09:27 -0700 | [diff] [blame] | 629 | enum ib_qp_create_flags create_flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 630 | u8 port_num; /* special QP types only */ |
| 631 | }; |
| 632 | |
Sean Hefty | 0e0ec7e | 2011-08-08 15:31:51 -0700 | [diff] [blame] | 633 | struct ib_qp_open_attr { |
| 634 | void (*event_handler)(struct ib_event *, void *); |
| 635 | void *qp_context; |
| 636 | u32 qp_num; |
| 637 | enum ib_qp_type qp_type; |
| 638 | }; |
| 639 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | enum ib_rnr_timeout { |
| 641 | IB_RNR_TIMER_655_36 = 0, |
| 642 | IB_RNR_TIMER_000_01 = 1, |
| 643 | IB_RNR_TIMER_000_02 = 2, |
| 644 | IB_RNR_TIMER_000_03 = 3, |
| 645 | IB_RNR_TIMER_000_04 = 4, |
| 646 | IB_RNR_TIMER_000_06 = 5, |
| 647 | IB_RNR_TIMER_000_08 = 6, |
| 648 | IB_RNR_TIMER_000_12 = 7, |
| 649 | IB_RNR_TIMER_000_16 = 8, |
| 650 | IB_RNR_TIMER_000_24 = 9, |
| 651 | IB_RNR_TIMER_000_32 = 10, |
| 652 | IB_RNR_TIMER_000_48 = 11, |
| 653 | IB_RNR_TIMER_000_64 = 12, |
| 654 | IB_RNR_TIMER_000_96 = 13, |
| 655 | IB_RNR_TIMER_001_28 = 14, |
| 656 | IB_RNR_TIMER_001_92 = 15, |
| 657 | IB_RNR_TIMER_002_56 = 16, |
| 658 | IB_RNR_TIMER_003_84 = 17, |
| 659 | IB_RNR_TIMER_005_12 = 18, |
| 660 | IB_RNR_TIMER_007_68 = 19, |
| 661 | IB_RNR_TIMER_010_24 = 20, |
| 662 | IB_RNR_TIMER_015_36 = 21, |
| 663 | IB_RNR_TIMER_020_48 = 22, |
| 664 | IB_RNR_TIMER_030_72 = 23, |
| 665 | IB_RNR_TIMER_040_96 = 24, |
| 666 | IB_RNR_TIMER_061_44 = 25, |
| 667 | IB_RNR_TIMER_081_92 = 26, |
| 668 | IB_RNR_TIMER_122_88 = 27, |
| 669 | IB_RNR_TIMER_163_84 = 28, |
| 670 | IB_RNR_TIMER_245_76 = 29, |
| 671 | IB_RNR_TIMER_327_68 = 30, |
| 672 | IB_RNR_TIMER_491_52 = 31 |
| 673 | }; |
| 674 | |
| 675 | enum ib_qp_attr_mask { |
| 676 | IB_QP_STATE = 1, |
| 677 | IB_QP_CUR_STATE = (1<<1), |
| 678 | IB_QP_EN_SQD_ASYNC_NOTIFY = (1<<2), |
| 679 | IB_QP_ACCESS_FLAGS = (1<<3), |
| 680 | IB_QP_PKEY_INDEX = (1<<4), |
| 681 | IB_QP_PORT = (1<<5), |
| 682 | IB_QP_QKEY = (1<<6), |
| 683 | IB_QP_AV = (1<<7), |
| 684 | IB_QP_PATH_MTU = (1<<8), |
| 685 | IB_QP_TIMEOUT = (1<<9), |
| 686 | IB_QP_RETRY_CNT = (1<<10), |
| 687 | IB_QP_RNR_RETRY = (1<<11), |
| 688 | IB_QP_RQ_PSN = (1<<12), |
| 689 | IB_QP_MAX_QP_RD_ATOMIC = (1<<13), |
| 690 | IB_QP_ALT_PATH = (1<<14), |
| 691 | IB_QP_MIN_RNR_TIMER = (1<<15), |
| 692 | IB_QP_SQ_PSN = (1<<16), |
| 693 | IB_QP_MAX_DEST_RD_ATOMIC = (1<<17), |
| 694 | IB_QP_PATH_MIG_STATE = (1<<18), |
| 695 | IB_QP_CAP = (1<<19), |
| 696 | IB_QP_DEST_QPN = (1<<20) |
| 697 | }; |
| 698 | |
| 699 | enum ib_qp_state { |
| 700 | IB_QPS_RESET, |
| 701 | IB_QPS_INIT, |
| 702 | IB_QPS_RTR, |
| 703 | IB_QPS_RTS, |
| 704 | IB_QPS_SQD, |
| 705 | IB_QPS_SQE, |
| 706 | IB_QPS_ERR |
| 707 | }; |
| 708 | |
| 709 | enum ib_mig_state { |
| 710 | IB_MIG_MIGRATED, |
| 711 | IB_MIG_REARM, |
| 712 | IB_MIG_ARMED |
| 713 | }; |
| 714 | |
| 715 | struct ib_qp_attr { |
| 716 | enum ib_qp_state qp_state; |
| 717 | enum ib_qp_state cur_qp_state; |
| 718 | enum ib_mtu path_mtu; |
| 719 | enum ib_mig_state path_mig_state; |
| 720 | u32 qkey; |
| 721 | u32 rq_psn; |
| 722 | u32 sq_psn; |
| 723 | u32 dest_qp_num; |
| 724 | int qp_access_flags; |
| 725 | struct ib_qp_cap cap; |
| 726 | struct ib_ah_attr ah_attr; |
| 727 | struct ib_ah_attr alt_ah_attr; |
| 728 | u16 pkey_index; |
| 729 | u16 alt_pkey_index; |
| 730 | u8 en_sqd_async_notify; |
| 731 | u8 sq_draining; |
| 732 | u8 max_rd_atomic; |
| 733 | u8 max_dest_rd_atomic; |
| 734 | u8 min_rnr_timer; |
| 735 | u8 port_num; |
| 736 | u8 timeout; |
| 737 | u8 retry_cnt; |
| 738 | u8 rnr_retry; |
| 739 | u8 alt_port_num; |
| 740 | u8 alt_timeout; |
| 741 | }; |
| 742 | |
| 743 | enum ib_wr_opcode { |
| 744 | IB_WR_RDMA_WRITE, |
| 745 | IB_WR_RDMA_WRITE_WITH_IMM, |
| 746 | IB_WR_SEND, |
| 747 | IB_WR_SEND_WITH_IMM, |
| 748 | IB_WR_RDMA_READ, |
| 749 | IB_WR_ATOMIC_CMP_AND_SWP, |
Eli Cohen | c93570f | 2008-04-16 21:09:27 -0700 | [diff] [blame] | 750 | IB_WR_ATOMIC_FETCH_AND_ADD, |
Roland Dreier | 0f39cf3 | 2008-04-16 21:09:32 -0700 | [diff] [blame] | 751 | IB_WR_LSO, |
| 752 | IB_WR_SEND_WITH_INV, |
Steve Wise | 00f7ec3 | 2008-07-14 23:48:45 -0700 | [diff] [blame] | 753 | IB_WR_RDMA_READ_WITH_INV, |
| 754 | IB_WR_LOCAL_INV, |
| 755 | IB_WR_FAST_REG_MR, |
Vladimir Sokolovsky | 5e80ba8 | 2010-04-14 17:23:01 +0300 | [diff] [blame] | 756 | IB_WR_MASKED_ATOMIC_CMP_AND_SWP, |
| 757 | IB_WR_MASKED_ATOMIC_FETCH_AND_ADD, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 758 | }; |
| 759 | |
| 760 | enum ib_send_flags { |
| 761 | IB_SEND_FENCE = 1, |
| 762 | IB_SEND_SIGNALED = (1<<1), |
| 763 | IB_SEND_SOLICITED = (1<<2), |
Eli Cohen | e0605d9 | 2008-01-30 18:30:57 +0200 | [diff] [blame] | 764 | IB_SEND_INLINE = (1<<3), |
| 765 | IB_SEND_IP_CSUM = (1<<4) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 766 | }; |
| 767 | |
| 768 | struct ib_sge { |
| 769 | u64 addr; |
| 770 | u32 length; |
| 771 | u32 lkey; |
| 772 | }; |
| 773 | |
Steve Wise | 00f7ec3 | 2008-07-14 23:48:45 -0700 | [diff] [blame] | 774 | struct ib_fast_reg_page_list { |
| 775 | struct ib_device *device; |
| 776 | u64 *page_list; |
| 777 | unsigned int max_page_list_len; |
| 778 | }; |
| 779 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 780 | struct ib_send_wr { |
| 781 | struct ib_send_wr *next; |
| 782 | u64 wr_id; |
| 783 | struct ib_sge *sg_list; |
| 784 | int num_sge; |
| 785 | enum ib_wr_opcode opcode; |
| 786 | int send_flags; |
Roland Dreier | 0f39cf3 | 2008-04-16 21:09:32 -0700 | [diff] [blame] | 787 | union { |
| 788 | __be32 imm_data; |
| 789 | u32 invalidate_rkey; |
| 790 | } ex; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 791 | union { |
| 792 | struct { |
| 793 | u64 remote_addr; |
| 794 | u32 rkey; |
| 795 | } rdma; |
| 796 | struct { |
| 797 | u64 remote_addr; |
| 798 | u64 compare_add; |
| 799 | u64 swap; |
Vladimir Sokolovsky | 5e80ba8 | 2010-04-14 17:23:01 +0300 | [diff] [blame] | 800 | u64 compare_add_mask; |
| 801 | u64 swap_mask; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 802 | u32 rkey; |
| 803 | } atomic; |
| 804 | struct { |
| 805 | struct ib_ah *ah; |
Eli Cohen | c93570f | 2008-04-16 21:09:27 -0700 | [diff] [blame] | 806 | void *header; |
| 807 | int hlen; |
| 808 | int mss; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 809 | u32 remote_qpn; |
| 810 | u32 remote_qkey; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | u16 pkey_index; /* valid for GSI only */ |
| 812 | u8 port_num; /* valid for DR SMPs on switch only */ |
| 813 | } ud; |
Steve Wise | 00f7ec3 | 2008-07-14 23:48:45 -0700 | [diff] [blame] | 814 | struct { |
| 815 | u64 iova_start; |
| 816 | struct ib_fast_reg_page_list *page_list; |
| 817 | unsigned int page_shift; |
| 818 | unsigned int page_list_len; |
| 819 | u32 length; |
| 820 | int access_flags; |
| 821 | u32 rkey; |
| 822 | } fast_reg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | } wr; |
Sean Hefty | b42b63c | 2011-05-23 19:59:25 -0700 | [diff] [blame] | 824 | u32 xrc_remote_srq_num; /* XRC TGT QPs only */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 825 | }; |
| 826 | |
| 827 | struct ib_recv_wr { |
| 828 | struct ib_recv_wr *next; |
| 829 | u64 wr_id; |
| 830 | struct ib_sge *sg_list; |
| 831 | int num_sge; |
| 832 | }; |
| 833 | |
| 834 | enum ib_access_flags { |
| 835 | IB_ACCESS_LOCAL_WRITE = 1, |
| 836 | IB_ACCESS_REMOTE_WRITE = (1<<1), |
| 837 | IB_ACCESS_REMOTE_READ = (1<<2), |
| 838 | IB_ACCESS_REMOTE_ATOMIC = (1<<3), |
| 839 | IB_ACCESS_MW_BIND = (1<<4) |
| 840 | }; |
| 841 | |
| 842 | struct ib_phys_buf { |
| 843 | u64 addr; |
| 844 | u64 size; |
| 845 | }; |
| 846 | |
| 847 | struct ib_mr_attr { |
| 848 | struct ib_pd *pd; |
| 849 | u64 device_virt_addr; |
| 850 | u64 size; |
| 851 | int mr_access_flags; |
| 852 | u32 lkey; |
| 853 | u32 rkey; |
| 854 | }; |
| 855 | |
| 856 | enum ib_mr_rereg_flags { |
| 857 | IB_MR_REREG_TRANS = 1, |
| 858 | IB_MR_REREG_PD = (1<<1), |
| 859 | IB_MR_REREG_ACCESS = (1<<2) |
| 860 | }; |
| 861 | |
| 862 | struct ib_mw_bind { |
| 863 | struct ib_mr *mr; |
| 864 | u64 wr_id; |
| 865 | u64 addr; |
| 866 | u32 length; |
| 867 | int send_flags; |
| 868 | int mw_access_flags; |
| 869 | }; |
| 870 | |
| 871 | struct ib_fmr_attr { |
| 872 | int max_pages; |
| 873 | int max_maps; |
Or Gerlitz | d36f34a | 2006-02-02 10:43:45 -0800 | [diff] [blame] | 874 | u8 page_shift; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 875 | }; |
| 876 | |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 877 | struct ib_ucontext { |
| 878 | struct ib_device *device; |
| 879 | struct list_head pd_list; |
| 880 | struct list_head mr_list; |
| 881 | struct list_head mw_list; |
| 882 | struct list_head cq_list; |
| 883 | struct list_head qp_list; |
| 884 | struct list_head srq_list; |
| 885 | struct list_head ah_list; |
Sean Hefty | 53d0bd1 | 2011-05-24 08:33:46 -0700 | [diff] [blame] | 886 | struct list_head xrcd_list; |
Roland Dreier | f7c6a7b | 2007-03-04 16:15:11 -0800 | [diff] [blame] | 887 | int closing; |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 888 | }; |
| 889 | |
| 890 | struct ib_uobject { |
| 891 | u64 user_handle; /* handle given to us by userspace */ |
| 892 | struct ib_ucontext *context; /* associated user context */ |
Roland Dreier | 9ead190 | 2006-06-17 20:44:49 -0700 | [diff] [blame] | 893 | void *object; /* containing object */ |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 894 | struct list_head list; /* link to context's list */ |
Roland Dreier | b3d636b | 2008-04-16 21:01:06 -0700 | [diff] [blame] | 895 | int id; /* index into kernel idr */ |
Roland Dreier | 9ead190 | 2006-06-17 20:44:49 -0700 | [diff] [blame] | 896 | struct kref ref; |
| 897 | struct rw_semaphore mutex; /* protects .live */ |
| 898 | int live; |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 899 | }; |
| 900 | |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 901 | struct ib_udata { |
| 902 | void __user *inbuf; |
| 903 | void __user *outbuf; |
| 904 | size_t inlen; |
| 905 | size_t outlen; |
| 906 | }; |
| 907 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 908 | struct ib_pd { |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 909 | struct ib_device *device; |
| 910 | struct ib_uobject *uobject; |
| 911 | atomic_t usecnt; /* count all resources */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 912 | }; |
| 913 | |
Sean Hefty | 59991f9 | 2011-05-23 17:52:46 -0700 | [diff] [blame] | 914 | struct ib_xrcd { |
| 915 | struct ib_device *device; |
Sean Hefty | d3d72d9 | 2011-05-26 23:06:44 -0700 | [diff] [blame] | 916 | atomic_t usecnt; /* count all exposed resources */ |
Sean Hefty | 53d0bd1 | 2011-05-24 08:33:46 -0700 | [diff] [blame] | 917 | struct inode *inode; |
Sean Hefty | d3d72d9 | 2011-05-26 23:06:44 -0700 | [diff] [blame] | 918 | |
| 919 | struct mutex tgt_qp_mutex; |
| 920 | struct list_head tgt_qp_list; |
Sean Hefty | 59991f9 | 2011-05-23 17:52:46 -0700 | [diff] [blame] | 921 | }; |
| 922 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 923 | struct ib_ah { |
| 924 | struct ib_device *device; |
| 925 | struct ib_pd *pd; |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 926 | struct ib_uobject *uobject; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 927 | }; |
| 928 | |
| 929 | typedef void (*ib_comp_handler)(struct ib_cq *cq, void *cq_context); |
| 930 | |
| 931 | struct ib_cq { |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 932 | struct ib_device *device; |
| 933 | struct ib_uobject *uobject; |
| 934 | ib_comp_handler comp_handler; |
| 935 | void (*event_handler)(struct ib_event *, void *); |
Dotan Barak | 4deccd6 | 2008-07-14 23:48:44 -0700 | [diff] [blame] | 936 | void *cq_context; |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 937 | int cqe; |
| 938 | atomic_t usecnt; /* count number of work queues */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 939 | }; |
| 940 | |
| 941 | struct ib_srq { |
Roland Dreier | d41fcc6 | 2005-08-18 12:23:08 -0700 | [diff] [blame] | 942 | struct ib_device *device; |
| 943 | struct ib_pd *pd; |
| 944 | struct ib_uobject *uobject; |
| 945 | void (*event_handler)(struct ib_event *, void *); |
| 946 | void *srq_context; |
Sean Hefty | 96104ed | 2011-05-23 16:31:36 -0700 | [diff] [blame] | 947 | enum ib_srq_type srq_type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 948 | atomic_t usecnt; |
Sean Hefty | 418d513 | 2011-05-23 19:42:29 -0700 | [diff] [blame] | 949 | |
| 950 | union { |
| 951 | struct { |
| 952 | struct ib_xrcd *xrcd; |
| 953 | struct ib_cq *cq; |
| 954 | u32 srq_num; |
| 955 | } xrc; |
| 956 | } ext; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 957 | }; |
| 958 | |
| 959 | struct ib_qp { |
| 960 | struct ib_device *device; |
| 961 | struct ib_pd *pd; |
| 962 | struct ib_cq *send_cq; |
| 963 | struct ib_cq *recv_cq; |
| 964 | struct ib_srq *srq; |
Sean Hefty | b42b63c | 2011-05-23 19:59:25 -0700 | [diff] [blame] | 965 | struct ib_xrcd *xrcd; /* XRC TGT QPs only */ |
Sean Hefty | d3d72d9 | 2011-05-26 23:06:44 -0700 | [diff] [blame] | 966 | struct list_head xrcd_list; |
Or Gerlitz | c3bccbfb | 2012-04-29 17:04:22 +0300 | [diff] [blame] | 967 | atomic_t usecnt; /* count times opened, mcast attaches */ |
Sean Hefty | 0e0ec7e | 2011-08-08 15:31:51 -0700 | [diff] [blame] | 968 | struct list_head open_list; |
| 969 | struct ib_qp *real_qp; |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 970 | struct ib_uobject *uobject; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 971 | void (*event_handler)(struct ib_event *, void *); |
| 972 | void *qp_context; |
| 973 | u32 qp_num; |
| 974 | enum ib_qp_type qp_type; |
| 975 | }; |
| 976 | |
| 977 | struct ib_mr { |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 978 | struct ib_device *device; |
| 979 | struct ib_pd *pd; |
| 980 | struct ib_uobject *uobject; |
| 981 | u32 lkey; |
| 982 | u32 rkey; |
| 983 | atomic_t usecnt; /* count number of MWs */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 984 | }; |
| 985 | |
| 986 | struct ib_mw { |
| 987 | struct ib_device *device; |
| 988 | struct ib_pd *pd; |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 989 | struct ib_uobject *uobject; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 990 | u32 rkey; |
| 991 | }; |
| 992 | |
| 993 | struct ib_fmr { |
| 994 | struct ib_device *device; |
| 995 | struct ib_pd *pd; |
| 996 | struct list_head list; |
| 997 | u32 lkey; |
| 998 | u32 rkey; |
| 999 | }; |
| 1000 | |
| 1001 | struct ib_mad; |
| 1002 | struct ib_grh; |
| 1003 | |
| 1004 | enum ib_process_mad_flags { |
| 1005 | IB_MAD_IGNORE_MKEY = 1, |
| 1006 | IB_MAD_IGNORE_BKEY = 2, |
| 1007 | IB_MAD_IGNORE_ALL = IB_MAD_IGNORE_MKEY | IB_MAD_IGNORE_BKEY |
| 1008 | }; |
| 1009 | |
| 1010 | enum ib_mad_result { |
| 1011 | IB_MAD_RESULT_FAILURE = 0, /* (!SUCCESS is the important flag) */ |
| 1012 | IB_MAD_RESULT_SUCCESS = 1 << 0, /* MAD was successfully processed */ |
| 1013 | IB_MAD_RESULT_REPLY = 1 << 1, /* Reply packet needs to be sent */ |
| 1014 | IB_MAD_RESULT_CONSUMED = 1 << 2 /* Packet consumed: stop processing */ |
| 1015 | }; |
| 1016 | |
| 1017 | #define IB_DEVICE_NAME_MAX 64 |
| 1018 | |
| 1019 | struct ib_cache { |
| 1020 | rwlock_t lock; |
| 1021 | struct ib_event_handler event_handler; |
| 1022 | struct ib_pkey_cache **pkey_cache; |
| 1023 | struct ib_gid_cache **gid_cache; |
Jack Morgenstein | 6fb9cdb | 2006-06-17 20:37:34 -0700 | [diff] [blame] | 1024 | u8 *lmc_cache; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1025 | }; |
| 1026 | |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 1027 | struct ib_dma_mapping_ops { |
| 1028 | int (*mapping_error)(struct ib_device *dev, |
| 1029 | u64 dma_addr); |
| 1030 | u64 (*map_single)(struct ib_device *dev, |
| 1031 | void *ptr, size_t size, |
| 1032 | enum dma_data_direction direction); |
| 1033 | void (*unmap_single)(struct ib_device *dev, |
| 1034 | u64 addr, size_t size, |
| 1035 | enum dma_data_direction direction); |
| 1036 | u64 (*map_page)(struct ib_device *dev, |
| 1037 | struct page *page, unsigned long offset, |
| 1038 | size_t size, |
| 1039 | enum dma_data_direction direction); |
| 1040 | void (*unmap_page)(struct ib_device *dev, |
| 1041 | u64 addr, size_t size, |
| 1042 | enum dma_data_direction direction); |
| 1043 | int (*map_sg)(struct ib_device *dev, |
| 1044 | struct scatterlist *sg, int nents, |
| 1045 | enum dma_data_direction direction); |
| 1046 | void (*unmap_sg)(struct ib_device *dev, |
| 1047 | struct scatterlist *sg, int nents, |
| 1048 | enum dma_data_direction direction); |
| 1049 | u64 (*dma_address)(struct ib_device *dev, |
| 1050 | struct scatterlist *sg); |
| 1051 | unsigned int (*dma_len)(struct ib_device *dev, |
| 1052 | struct scatterlist *sg); |
| 1053 | void (*sync_single_for_cpu)(struct ib_device *dev, |
| 1054 | u64 dma_handle, |
| 1055 | size_t size, |
Dotan Barak | 4deccd6 | 2008-07-14 23:48:44 -0700 | [diff] [blame] | 1056 | enum dma_data_direction dir); |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 1057 | void (*sync_single_for_device)(struct ib_device *dev, |
| 1058 | u64 dma_handle, |
| 1059 | size_t size, |
| 1060 | enum dma_data_direction dir); |
| 1061 | void *(*alloc_coherent)(struct ib_device *dev, |
| 1062 | size_t size, |
| 1063 | u64 *dma_handle, |
| 1064 | gfp_t flag); |
| 1065 | void (*free_coherent)(struct ib_device *dev, |
| 1066 | size_t size, void *cpu_addr, |
| 1067 | u64 dma_handle); |
| 1068 | }; |
| 1069 | |
Tom Tucker | 07ebafb | 2006-08-03 16:02:42 -0500 | [diff] [blame] | 1070 | struct iw_cm_verbs; |
| 1071 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1072 | struct ib_device { |
| 1073 | struct device *dma_device; |
| 1074 | |
| 1075 | char name[IB_DEVICE_NAME_MAX]; |
| 1076 | |
| 1077 | struct list_head event_handler_list; |
| 1078 | spinlock_t event_handler_lock; |
| 1079 | |
Alexander Chiang | 17a55f7 | 2010-02-02 19:09:16 +0000 | [diff] [blame] | 1080 | spinlock_t client_data_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1081 | struct list_head core_list; |
| 1082 | struct list_head client_data_list; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1083 | |
| 1084 | struct ib_cache cache; |
Yosef Etigin | 5eb620c | 2007-05-14 07:26:51 +0300 | [diff] [blame] | 1085 | int *pkey_tbl_len; |
| 1086 | int *gid_tbl_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1087 | |
Michael S. Tsirkin | f4fd0b2 | 2007-05-03 13:48:47 +0300 | [diff] [blame] | 1088 | int num_comp_vectors; |
| 1089 | |
Tom Tucker | 07ebafb | 2006-08-03 16:02:42 -0500 | [diff] [blame] | 1090 | struct iw_cm_verbs *iwcm; |
| 1091 | |
Steve Wise | 7f624d0 | 2008-07-14 23:48:48 -0700 | [diff] [blame] | 1092 | int (*get_protocol_stats)(struct ib_device *device, |
| 1093 | union rdma_protocol_stats *stats); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1094 | int (*query_device)(struct ib_device *device, |
| 1095 | struct ib_device_attr *device_attr); |
| 1096 | int (*query_port)(struct ib_device *device, |
| 1097 | u8 port_num, |
| 1098 | struct ib_port_attr *port_attr); |
Eli Cohen | a3f5ada | 2010-09-27 17:51:10 -0700 | [diff] [blame] | 1099 | enum rdma_link_layer (*get_link_layer)(struct ib_device *device, |
| 1100 | u8 port_num); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1101 | int (*query_gid)(struct ib_device *device, |
| 1102 | u8 port_num, int index, |
| 1103 | union ib_gid *gid); |
| 1104 | int (*query_pkey)(struct ib_device *device, |
| 1105 | u8 port_num, u16 index, u16 *pkey); |
| 1106 | int (*modify_device)(struct ib_device *device, |
| 1107 | int device_modify_mask, |
| 1108 | struct ib_device_modify *device_modify); |
| 1109 | int (*modify_port)(struct ib_device *device, |
| 1110 | u8 port_num, int port_modify_mask, |
| 1111 | struct ib_port_modify *port_modify); |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 1112 | struct ib_ucontext * (*alloc_ucontext)(struct ib_device *device, |
| 1113 | struct ib_udata *udata); |
| 1114 | int (*dealloc_ucontext)(struct ib_ucontext *context); |
| 1115 | int (*mmap)(struct ib_ucontext *context, |
| 1116 | struct vm_area_struct *vma); |
| 1117 | struct ib_pd * (*alloc_pd)(struct ib_device *device, |
| 1118 | struct ib_ucontext *context, |
| 1119 | struct ib_udata *udata); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1120 | int (*dealloc_pd)(struct ib_pd *pd); |
| 1121 | struct ib_ah * (*create_ah)(struct ib_pd *pd, |
| 1122 | struct ib_ah_attr *ah_attr); |
| 1123 | int (*modify_ah)(struct ib_ah *ah, |
| 1124 | struct ib_ah_attr *ah_attr); |
| 1125 | int (*query_ah)(struct ib_ah *ah, |
| 1126 | struct ib_ah_attr *ah_attr); |
| 1127 | int (*destroy_ah)(struct ib_ah *ah); |
Roland Dreier | d41fcc6 | 2005-08-18 12:23:08 -0700 | [diff] [blame] | 1128 | struct ib_srq * (*create_srq)(struct ib_pd *pd, |
| 1129 | struct ib_srq_init_attr *srq_init_attr, |
| 1130 | struct ib_udata *udata); |
| 1131 | int (*modify_srq)(struct ib_srq *srq, |
| 1132 | struct ib_srq_attr *srq_attr, |
Ralph Campbell | 9bc57e2 | 2006-08-11 14:58:09 -0700 | [diff] [blame] | 1133 | enum ib_srq_attr_mask srq_attr_mask, |
| 1134 | struct ib_udata *udata); |
Roland Dreier | d41fcc6 | 2005-08-18 12:23:08 -0700 | [diff] [blame] | 1135 | int (*query_srq)(struct ib_srq *srq, |
| 1136 | struct ib_srq_attr *srq_attr); |
| 1137 | int (*destroy_srq)(struct ib_srq *srq); |
| 1138 | int (*post_srq_recv)(struct ib_srq *srq, |
| 1139 | struct ib_recv_wr *recv_wr, |
| 1140 | struct ib_recv_wr **bad_recv_wr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1141 | struct ib_qp * (*create_qp)(struct ib_pd *pd, |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 1142 | struct ib_qp_init_attr *qp_init_attr, |
| 1143 | struct ib_udata *udata); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1144 | int (*modify_qp)(struct ib_qp *qp, |
| 1145 | struct ib_qp_attr *qp_attr, |
Ralph Campbell | 9bc57e2 | 2006-08-11 14:58:09 -0700 | [diff] [blame] | 1146 | int qp_attr_mask, |
| 1147 | struct ib_udata *udata); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1148 | int (*query_qp)(struct ib_qp *qp, |
| 1149 | struct ib_qp_attr *qp_attr, |
| 1150 | int qp_attr_mask, |
| 1151 | struct ib_qp_init_attr *qp_init_attr); |
| 1152 | int (*destroy_qp)(struct ib_qp *qp); |
| 1153 | int (*post_send)(struct ib_qp *qp, |
| 1154 | struct ib_send_wr *send_wr, |
| 1155 | struct ib_send_wr **bad_send_wr); |
| 1156 | int (*post_recv)(struct ib_qp *qp, |
| 1157 | struct ib_recv_wr *recv_wr, |
| 1158 | struct ib_recv_wr **bad_recv_wr); |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 1159 | struct ib_cq * (*create_cq)(struct ib_device *device, int cqe, |
Michael S. Tsirkin | f4fd0b2 | 2007-05-03 13:48:47 +0300 | [diff] [blame] | 1160 | int comp_vector, |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 1161 | struct ib_ucontext *context, |
| 1162 | struct ib_udata *udata); |
Eli Cohen | 2dd5716 | 2008-04-16 21:09:33 -0700 | [diff] [blame] | 1163 | int (*modify_cq)(struct ib_cq *cq, u16 cq_count, |
| 1164 | u16 cq_period); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1165 | int (*destroy_cq)(struct ib_cq *cq); |
Roland Dreier | 33b9b3e | 2006-01-30 14:29:21 -0800 | [diff] [blame] | 1166 | int (*resize_cq)(struct ib_cq *cq, int cqe, |
| 1167 | struct ib_udata *udata); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1168 | int (*poll_cq)(struct ib_cq *cq, int num_entries, |
| 1169 | struct ib_wc *wc); |
| 1170 | int (*peek_cq)(struct ib_cq *cq, int wc_cnt); |
| 1171 | int (*req_notify_cq)(struct ib_cq *cq, |
Roland Dreier | ed23a72 | 2007-05-06 21:02:48 -0700 | [diff] [blame] | 1172 | enum ib_cq_notify_flags flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1173 | int (*req_ncomp_notif)(struct ib_cq *cq, |
| 1174 | int wc_cnt); |
| 1175 | struct ib_mr * (*get_dma_mr)(struct ib_pd *pd, |
| 1176 | int mr_access_flags); |
| 1177 | struct ib_mr * (*reg_phys_mr)(struct ib_pd *pd, |
| 1178 | struct ib_phys_buf *phys_buf_array, |
| 1179 | int num_phys_buf, |
| 1180 | int mr_access_flags, |
| 1181 | u64 *iova_start); |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 1182 | struct ib_mr * (*reg_user_mr)(struct ib_pd *pd, |
Roland Dreier | f7c6a7b | 2007-03-04 16:15:11 -0800 | [diff] [blame] | 1183 | u64 start, u64 length, |
| 1184 | u64 virt_addr, |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 1185 | int mr_access_flags, |
| 1186 | struct ib_udata *udata); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1187 | int (*query_mr)(struct ib_mr *mr, |
| 1188 | struct ib_mr_attr *mr_attr); |
| 1189 | int (*dereg_mr)(struct ib_mr *mr); |
Steve Wise | 00f7ec3 | 2008-07-14 23:48:45 -0700 | [diff] [blame] | 1190 | struct ib_mr * (*alloc_fast_reg_mr)(struct ib_pd *pd, |
| 1191 | int max_page_list_len); |
| 1192 | struct ib_fast_reg_page_list * (*alloc_fast_reg_page_list)(struct ib_device *device, |
| 1193 | int page_list_len); |
| 1194 | void (*free_fast_reg_page_list)(struct ib_fast_reg_page_list *page_list); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1195 | int (*rereg_phys_mr)(struct ib_mr *mr, |
| 1196 | int mr_rereg_mask, |
| 1197 | struct ib_pd *pd, |
| 1198 | struct ib_phys_buf *phys_buf_array, |
| 1199 | int num_phys_buf, |
| 1200 | int mr_access_flags, |
| 1201 | u64 *iova_start); |
| 1202 | struct ib_mw * (*alloc_mw)(struct ib_pd *pd); |
| 1203 | int (*bind_mw)(struct ib_qp *qp, |
| 1204 | struct ib_mw *mw, |
| 1205 | struct ib_mw_bind *mw_bind); |
| 1206 | int (*dealloc_mw)(struct ib_mw *mw); |
| 1207 | struct ib_fmr * (*alloc_fmr)(struct ib_pd *pd, |
| 1208 | int mr_access_flags, |
| 1209 | struct ib_fmr_attr *fmr_attr); |
| 1210 | int (*map_phys_fmr)(struct ib_fmr *fmr, |
| 1211 | u64 *page_list, int list_len, |
| 1212 | u64 iova); |
| 1213 | int (*unmap_fmr)(struct list_head *fmr_list); |
| 1214 | int (*dealloc_fmr)(struct ib_fmr *fmr); |
| 1215 | int (*attach_mcast)(struct ib_qp *qp, |
| 1216 | union ib_gid *gid, |
| 1217 | u16 lid); |
| 1218 | int (*detach_mcast)(struct ib_qp *qp, |
| 1219 | union ib_gid *gid, |
| 1220 | u16 lid); |
| 1221 | int (*process_mad)(struct ib_device *device, |
| 1222 | int process_mad_flags, |
| 1223 | u8 port_num, |
| 1224 | struct ib_wc *in_wc, |
| 1225 | struct ib_grh *in_grh, |
| 1226 | struct ib_mad *in_mad, |
| 1227 | struct ib_mad *out_mad); |
Sean Hefty | 59991f9 | 2011-05-23 17:52:46 -0700 | [diff] [blame] | 1228 | struct ib_xrcd * (*alloc_xrcd)(struct ib_device *device, |
| 1229 | struct ib_ucontext *ucontext, |
| 1230 | struct ib_udata *udata); |
| 1231 | int (*dealloc_xrcd)(struct ib_xrcd *xrcd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1232 | |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 1233 | struct ib_dma_mapping_ops *dma_ops; |
| 1234 | |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 1235 | struct module *owner; |
Tony Jones | f4e91eb | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 1236 | struct device dev; |
Greg Kroah-Hartman | 35be068 | 2007-12-17 15:54:39 -0400 | [diff] [blame] | 1237 | struct kobject *ports_parent; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1238 | struct list_head port_list; |
| 1239 | |
| 1240 | enum { |
| 1241 | IB_DEV_UNINITIALIZED, |
| 1242 | IB_DEV_REGISTERED, |
| 1243 | IB_DEV_UNREGISTERED |
| 1244 | } reg_state; |
| 1245 | |
Roland Dreier | 274c089 | 2005-09-29 14:17:48 -0700 | [diff] [blame] | 1246 | int uverbs_abi_ver; |
Alexander Chiang | 17a55f7 | 2010-02-02 19:09:16 +0000 | [diff] [blame] | 1247 | u64 uverbs_cmd_mask; |
Roland Dreier | 274c089 | 2005-09-29 14:17:48 -0700 | [diff] [blame] | 1248 | |
Roland Dreier | c5bcbbb | 2006-02-02 09:47:14 -0800 | [diff] [blame] | 1249 | char node_desc[64]; |
Sean Hefty | cf311cd | 2006-01-10 07:39:34 -0800 | [diff] [blame] | 1250 | __be64 node_guid; |
Steve Wise | 96f15c0 | 2008-07-14 23:48:53 -0700 | [diff] [blame] | 1251 | u32 local_dma_lkey; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1252 | u8 node_type; |
| 1253 | u8 phys_port_cnt; |
| 1254 | }; |
| 1255 | |
| 1256 | struct ib_client { |
| 1257 | char *name; |
| 1258 | void (*add) (struct ib_device *); |
| 1259 | void (*remove)(struct ib_device *); |
| 1260 | |
| 1261 | struct list_head list; |
| 1262 | }; |
| 1263 | |
| 1264 | struct ib_device *ib_alloc_device(size_t size); |
| 1265 | void ib_dealloc_device(struct ib_device *device); |
| 1266 | |
Ralph Campbell | 9a6edb6 | 2010-05-06 17:03:25 -0700 | [diff] [blame] | 1267 | int ib_register_device(struct ib_device *device, |
| 1268 | int (*port_callback)(struct ib_device *, |
| 1269 | u8, struct kobject *)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1270 | void ib_unregister_device(struct ib_device *device); |
| 1271 | |
| 1272 | int ib_register_client (struct ib_client *client); |
| 1273 | void ib_unregister_client(struct ib_client *client); |
| 1274 | |
| 1275 | void *ib_get_client_data(struct ib_device *device, struct ib_client *client); |
| 1276 | void ib_set_client_data(struct ib_device *device, struct ib_client *client, |
| 1277 | void *data); |
| 1278 | |
Roland Dreier | e2773c0 | 2005-07-07 17:57:10 -0700 | [diff] [blame] | 1279 | static inline int ib_copy_from_udata(void *dest, struct ib_udata *udata, size_t len) |
| 1280 | { |
| 1281 | return copy_from_user(dest, udata->inbuf, len) ? -EFAULT : 0; |
| 1282 | } |
| 1283 | |
| 1284 | static inline int ib_copy_to_udata(struct ib_udata *udata, void *src, size_t len) |
| 1285 | { |
| 1286 | return copy_to_user(udata->outbuf, src, len) ? -EFAULT : 0; |
| 1287 | } |
| 1288 | |
Roland Dreier | 8a51866 | 2006-02-13 12:48:12 -0800 | [diff] [blame] | 1289 | /** |
| 1290 | * ib_modify_qp_is_ok - Check that the supplied attribute mask |
| 1291 | * contains all required attributes and no attributes not allowed for |
| 1292 | * the given QP state transition. |
| 1293 | * @cur_state: Current QP state |
| 1294 | * @next_state: Next QP state |
| 1295 | * @type: QP type |
| 1296 | * @mask: Mask of supplied QP attributes |
| 1297 | * |
| 1298 | * This function is a helper function that a low-level driver's |
| 1299 | * modify_qp method can use to validate the consumer's input. It |
| 1300 | * checks that cur_state and next_state are valid QP states, that a |
| 1301 | * transition from cur_state to next_state is allowed by the IB spec, |
| 1302 | * and that the attribute mask supplied is allowed for the transition. |
| 1303 | */ |
| 1304 | int ib_modify_qp_is_ok(enum ib_qp_state cur_state, enum ib_qp_state next_state, |
| 1305 | enum ib_qp_type type, enum ib_qp_attr_mask mask); |
| 1306 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1307 | int ib_register_event_handler (struct ib_event_handler *event_handler); |
| 1308 | int ib_unregister_event_handler(struct ib_event_handler *event_handler); |
| 1309 | void ib_dispatch_event(struct ib_event *event); |
| 1310 | |
| 1311 | int ib_query_device(struct ib_device *device, |
| 1312 | struct ib_device_attr *device_attr); |
| 1313 | |
| 1314 | int ib_query_port(struct ib_device *device, |
| 1315 | u8 port_num, struct ib_port_attr *port_attr); |
| 1316 | |
Eli Cohen | a3f5ada | 2010-09-27 17:51:10 -0700 | [diff] [blame] | 1317 | enum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device, |
| 1318 | u8 port_num); |
| 1319 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1320 | int ib_query_gid(struct ib_device *device, |
| 1321 | u8 port_num, int index, union ib_gid *gid); |
| 1322 | |
| 1323 | int ib_query_pkey(struct ib_device *device, |
| 1324 | u8 port_num, u16 index, u16 *pkey); |
| 1325 | |
| 1326 | int ib_modify_device(struct ib_device *device, |
| 1327 | int device_modify_mask, |
| 1328 | struct ib_device_modify *device_modify); |
| 1329 | |
| 1330 | int ib_modify_port(struct ib_device *device, |
| 1331 | u8 port_num, int port_modify_mask, |
| 1332 | struct ib_port_modify *port_modify); |
| 1333 | |
Yosef Etigin | 5eb620c | 2007-05-14 07:26:51 +0300 | [diff] [blame] | 1334 | int ib_find_gid(struct ib_device *device, union ib_gid *gid, |
| 1335 | u8 *port_num, u16 *index); |
| 1336 | |
| 1337 | int ib_find_pkey(struct ib_device *device, |
| 1338 | u8 port_num, u16 pkey, u16 *index); |
| 1339 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1340 | /** |
| 1341 | * ib_alloc_pd - Allocates an unused protection domain. |
| 1342 | * @device: The device on which to allocate the protection domain. |
| 1343 | * |
| 1344 | * A protection domain object provides an association between QPs, shared |
| 1345 | * receive queues, address handles, memory regions, and memory windows. |
| 1346 | */ |
| 1347 | struct ib_pd *ib_alloc_pd(struct ib_device *device); |
| 1348 | |
| 1349 | /** |
| 1350 | * ib_dealloc_pd - Deallocates a protection domain. |
| 1351 | * @pd: The protection domain to deallocate. |
| 1352 | */ |
| 1353 | int ib_dealloc_pd(struct ib_pd *pd); |
| 1354 | |
| 1355 | /** |
| 1356 | * ib_create_ah - Creates an address handle for the given address vector. |
| 1357 | * @pd: The protection domain associated with the address handle. |
| 1358 | * @ah_attr: The attributes of the address vector. |
| 1359 | * |
| 1360 | * The address handle is used to reference a local or global destination |
| 1361 | * in all UD QP post sends. |
| 1362 | */ |
| 1363 | struct ib_ah *ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr); |
| 1364 | |
| 1365 | /** |
Sean Hefty | 4e00d69 | 2006-06-17 20:37:39 -0700 | [diff] [blame] | 1366 | * ib_init_ah_from_wc - Initializes address handle attributes from a |
| 1367 | * work completion. |
| 1368 | * @device: Device on which the received message arrived. |
| 1369 | * @port_num: Port on which the received message arrived. |
| 1370 | * @wc: Work completion associated with the received message. |
| 1371 | * @grh: References the received global route header. This parameter is |
| 1372 | * ignored unless the work completion indicates that the GRH is valid. |
| 1373 | * @ah_attr: Returned attributes that can be used when creating an address |
| 1374 | * handle for replying to the message. |
| 1375 | */ |
| 1376 | int ib_init_ah_from_wc(struct ib_device *device, u8 port_num, struct ib_wc *wc, |
| 1377 | struct ib_grh *grh, struct ib_ah_attr *ah_attr); |
| 1378 | |
| 1379 | /** |
Hal Rosenstock | 513789e | 2005-07-27 11:45:34 -0700 | [diff] [blame] | 1380 | * ib_create_ah_from_wc - Creates an address handle associated with the |
| 1381 | * sender of the specified work completion. |
| 1382 | * @pd: The protection domain associated with the address handle. |
| 1383 | * @wc: Work completion information associated with a received message. |
| 1384 | * @grh: References the received global route header. This parameter is |
| 1385 | * ignored unless the work completion indicates that the GRH is valid. |
| 1386 | * @port_num: The outbound port number to associate with the address. |
| 1387 | * |
| 1388 | * The address handle is used to reference a local or global destination |
| 1389 | * in all UD QP post sends. |
| 1390 | */ |
| 1391 | struct ib_ah *ib_create_ah_from_wc(struct ib_pd *pd, struct ib_wc *wc, |
| 1392 | struct ib_grh *grh, u8 port_num); |
| 1393 | |
| 1394 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1395 | * ib_modify_ah - Modifies the address vector associated with an address |
| 1396 | * handle. |
| 1397 | * @ah: The address handle to modify. |
| 1398 | * @ah_attr: The new address vector attributes to associate with the |
| 1399 | * address handle. |
| 1400 | */ |
| 1401 | int ib_modify_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr); |
| 1402 | |
| 1403 | /** |
| 1404 | * ib_query_ah - Queries the address vector associated with an address |
| 1405 | * handle. |
| 1406 | * @ah: The address handle to query. |
| 1407 | * @ah_attr: The address vector attributes associated with the address |
| 1408 | * handle. |
| 1409 | */ |
| 1410 | int ib_query_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr); |
| 1411 | |
| 1412 | /** |
| 1413 | * ib_destroy_ah - Destroys an address handle. |
| 1414 | * @ah: The address handle to destroy. |
| 1415 | */ |
| 1416 | int ib_destroy_ah(struct ib_ah *ah); |
| 1417 | |
| 1418 | /** |
Roland Dreier | d41fcc6 | 2005-08-18 12:23:08 -0700 | [diff] [blame] | 1419 | * ib_create_srq - Creates a SRQ associated with the specified protection |
| 1420 | * domain. |
| 1421 | * @pd: The protection domain associated with the SRQ. |
Dotan Barak | abb6e9b | 2006-02-23 12:13:51 -0800 | [diff] [blame] | 1422 | * @srq_init_attr: A list of initial attributes required to create the |
| 1423 | * SRQ. If SRQ creation succeeds, then the attributes are updated to |
| 1424 | * the actual capabilities of the created SRQ. |
Roland Dreier | d41fcc6 | 2005-08-18 12:23:08 -0700 | [diff] [blame] | 1425 | * |
| 1426 | * srq_attr->max_wr and srq_attr->max_sge are read the determine the |
| 1427 | * requested size of the SRQ, and set to the actual values allocated |
| 1428 | * on return. If ib_create_srq() succeeds, then max_wr and max_sge |
| 1429 | * will always be at least as large as the requested values. |
| 1430 | */ |
| 1431 | struct ib_srq *ib_create_srq(struct ib_pd *pd, |
| 1432 | struct ib_srq_init_attr *srq_init_attr); |
| 1433 | |
| 1434 | /** |
| 1435 | * ib_modify_srq - Modifies the attributes for the specified SRQ. |
| 1436 | * @srq: The SRQ to modify. |
| 1437 | * @srq_attr: On input, specifies the SRQ attributes to modify. On output, |
| 1438 | * the current values of selected SRQ attributes are returned. |
| 1439 | * @srq_attr_mask: A bit-mask used to specify which attributes of the SRQ |
| 1440 | * are being modified. |
| 1441 | * |
| 1442 | * The mask may contain IB_SRQ_MAX_WR to resize the SRQ and/or |
| 1443 | * IB_SRQ_LIMIT to set the SRQ's limit and request notification when |
| 1444 | * the number of receives queued drops below the limit. |
| 1445 | */ |
| 1446 | int ib_modify_srq(struct ib_srq *srq, |
| 1447 | struct ib_srq_attr *srq_attr, |
| 1448 | enum ib_srq_attr_mask srq_attr_mask); |
| 1449 | |
| 1450 | /** |
| 1451 | * ib_query_srq - Returns the attribute list and current values for the |
| 1452 | * specified SRQ. |
| 1453 | * @srq: The SRQ to query. |
| 1454 | * @srq_attr: The attributes of the specified SRQ. |
| 1455 | */ |
| 1456 | int ib_query_srq(struct ib_srq *srq, |
| 1457 | struct ib_srq_attr *srq_attr); |
| 1458 | |
| 1459 | /** |
| 1460 | * ib_destroy_srq - Destroys the specified SRQ. |
| 1461 | * @srq: The SRQ to destroy. |
| 1462 | */ |
| 1463 | int ib_destroy_srq(struct ib_srq *srq); |
| 1464 | |
| 1465 | /** |
| 1466 | * ib_post_srq_recv - Posts a list of work requests to the specified SRQ. |
| 1467 | * @srq: The SRQ to post the work request on. |
| 1468 | * @recv_wr: A list of work requests to post on the receive queue. |
| 1469 | * @bad_recv_wr: On an immediate failure, this parameter will reference |
| 1470 | * the work request that failed to be posted on the QP. |
| 1471 | */ |
| 1472 | static inline int ib_post_srq_recv(struct ib_srq *srq, |
| 1473 | struct ib_recv_wr *recv_wr, |
| 1474 | struct ib_recv_wr **bad_recv_wr) |
| 1475 | { |
| 1476 | return srq->device->post_srq_recv(srq, recv_wr, bad_recv_wr); |
| 1477 | } |
| 1478 | |
| 1479 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1480 | * ib_create_qp - Creates a QP associated with the specified protection |
| 1481 | * domain. |
| 1482 | * @pd: The protection domain associated with the QP. |
Dotan Barak | abb6e9b | 2006-02-23 12:13:51 -0800 | [diff] [blame] | 1483 | * @qp_init_attr: A list of initial attributes required to create the |
| 1484 | * QP. If QP creation succeeds, then the attributes are updated to |
| 1485 | * the actual capabilities of the created QP. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1486 | */ |
| 1487 | struct ib_qp *ib_create_qp(struct ib_pd *pd, |
| 1488 | struct ib_qp_init_attr *qp_init_attr); |
| 1489 | |
| 1490 | /** |
| 1491 | * ib_modify_qp - Modifies the attributes for the specified QP and then |
| 1492 | * transitions the QP to the given state. |
| 1493 | * @qp: The QP to modify. |
| 1494 | * @qp_attr: On input, specifies the QP attributes to modify. On output, |
| 1495 | * the current values of selected QP attributes are returned. |
| 1496 | * @qp_attr_mask: A bit-mask used to specify which attributes of the QP |
| 1497 | * are being modified. |
| 1498 | */ |
| 1499 | int ib_modify_qp(struct ib_qp *qp, |
| 1500 | struct ib_qp_attr *qp_attr, |
| 1501 | int qp_attr_mask); |
| 1502 | |
| 1503 | /** |
| 1504 | * ib_query_qp - Returns the attribute list and current values for the |
| 1505 | * specified QP. |
| 1506 | * @qp: The QP to query. |
| 1507 | * @qp_attr: The attributes of the specified QP. |
| 1508 | * @qp_attr_mask: A bit-mask used to select specific attributes to query. |
| 1509 | * @qp_init_attr: Additional attributes of the selected QP. |
| 1510 | * |
| 1511 | * The qp_attr_mask may be used to limit the query to gathering only the |
| 1512 | * selected attributes. |
| 1513 | */ |
| 1514 | int ib_query_qp(struct ib_qp *qp, |
| 1515 | struct ib_qp_attr *qp_attr, |
| 1516 | int qp_attr_mask, |
| 1517 | struct ib_qp_init_attr *qp_init_attr); |
| 1518 | |
| 1519 | /** |
| 1520 | * ib_destroy_qp - Destroys the specified QP. |
| 1521 | * @qp: The QP to destroy. |
| 1522 | */ |
| 1523 | int ib_destroy_qp(struct ib_qp *qp); |
| 1524 | |
| 1525 | /** |
Sean Hefty | 0e0ec7e | 2011-08-08 15:31:51 -0700 | [diff] [blame] | 1526 | * ib_open_qp - Obtain a reference to an existing sharable QP. |
| 1527 | * @xrcd - XRC domain |
| 1528 | * @qp_open_attr: Attributes identifying the QP to open. |
| 1529 | * |
| 1530 | * Returns a reference to a sharable QP. |
| 1531 | */ |
| 1532 | struct ib_qp *ib_open_qp(struct ib_xrcd *xrcd, |
| 1533 | struct ib_qp_open_attr *qp_open_attr); |
| 1534 | |
| 1535 | /** |
| 1536 | * ib_close_qp - Release an external reference to a QP. |
Sean Hefty | d3d72d9 | 2011-05-26 23:06:44 -0700 | [diff] [blame] | 1537 | * @qp: The QP handle to release |
| 1538 | * |
Sean Hefty | 0e0ec7e | 2011-08-08 15:31:51 -0700 | [diff] [blame] | 1539 | * The opened QP handle is released by the caller. The underlying |
| 1540 | * shared QP is not destroyed until all internal references are released. |
Sean Hefty | d3d72d9 | 2011-05-26 23:06:44 -0700 | [diff] [blame] | 1541 | */ |
Sean Hefty | 0e0ec7e | 2011-08-08 15:31:51 -0700 | [diff] [blame] | 1542 | int ib_close_qp(struct ib_qp *qp); |
Sean Hefty | d3d72d9 | 2011-05-26 23:06:44 -0700 | [diff] [blame] | 1543 | |
| 1544 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1545 | * ib_post_send - Posts a list of work requests to the send queue of |
| 1546 | * the specified QP. |
| 1547 | * @qp: The QP to post the work request on. |
| 1548 | * @send_wr: A list of work requests to post on the send queue. |
| 1549 | * @bad_send_wr: On an immediate failure, this parameter will reference |
| 1550 | * the work request that failed to be posted on the QP. |
Bart Van Assche | 55464d4 | 2009-12-09 14:20:04 -0800 | [diff] [blame] | 1551 | * |
| 1552 | * While IBA Vol. 1 section 11.4.1.1 specifies that if an immediate |
| 1553 | * error is returned, the QP state shall not be affected, |
| 1554 | * ib_post_send() will return an immediate error after queueing any |
| 1555 | * earlier work requests in the list. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1556 | */ |
| 1557 | static inline int ib_post_send(struct ib_qp *qp, |
| 1558 | struct ib_send_wr *send_wr, |
| 1559 | struct ib_send_wr **bad_send_wr) |
| 1560 | { |
| 1561 | return qp->device->post_send(qp, send_wr, bad_send_wr); |
| 1562 | } |
| 1563 | |
| 1564 | /** |
| 1565 | * ib_post_recv - Posts a list of work requests to the receive queue of |
| 1566 | * the specified QP. |
| 1567 | * @qp: The QP to post the work request on. |
| 1568 | * @recv_wr: A list of work requests to post on the receive queue. |
| 1569 | * @bad_recv_wr: On an immediate failure, this parameter will reference |
| 1570 | * the work request that failed to be posted on the QP. |
| 1571 | */ |
| 1572 | static inline int ib_post_recv(struct ib_qp *qp, |
| 1573 | struct ib_recv_wr *recv_wr, |
| 1574 | struct ib_recv_wr **bad_recv_wr) |
| 1575 | { |
| 1576 | return qp->device->post_recv(qp, recv_wr, bad_recv_wr); |
| 1577 | } |
| 1578 | |
| 1579 | /** |
| 1580 | * ib_create_cq - Creates a CQ on the specified device. |
| 1581 | * @device: The device on which to create the CQ. |
| 1582 | * @comp_handler: A user-specified callback that is invoked when a |
| 1583 | * completion event occurs on the CQ. |
| 1584 | * @event_handler: A user-specified callback that is invoked when an |
| 1585 | * asynchronous event not associated with a completion occurs on the CQ. |
| 1586 | * @cq_context: Context associated with the CQ returned to the user via |
| 1587 | * the associated completion and event handlers. |
| 1588 | * @cqe: The minimum size of the CQ. |
Michael S. Tsirkin | f4fd0b2 | 2007-05-03 13:48:47 +0300 | [diff] [blame] | 1589 | * @comp_vector - Completion vector used to signal completion events. |
| 1590 | * Must be >= 0 and < context->num_comp_vectors. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1591 | * |
| 1592 | * Users can examine the cq structure to determine the actual CQ size. |
| 1593 | */ |
| 1594 | struct ib_cq *ib_create_cq(struct ib_device *device, |
| 1595 | ib_comp_handler comp_handler, |
| 1596 | void (*event_handler)(struct ib_event *, void *), |
Michael S. Tsirkin | f4fd0b2 | 2007-05-03 13:48:47 +0300 | [diff] [blame] | 1597 | void *cq_context, int cqe, int comp_vector); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1598 | |
| 1599 | /** |
| 1600 | * ib_resize_cq - Modifies the capacity of the CQ. |
| 1601 | * @cq: The CQ to resize. |
| 1602 | * @cqe: The minimum size of the CQ. |
| 1603 | * |
| 1604 | * Users can examine the cq structure to determine the actual CQ size. |
| 1605 | */ |
| 1606 | int ib_resize_cq(struct ib_cq *cq, int cqe); |
| 1607 | |
| 1608 | /** |
Eli Cohen | 2dd5716 | 2008-04-16 21:09:33 -0700 | [diff] [blame] | 1609 | * ib_modify_cq - Modifies moderation params of the CQ |
| 1610 | * @cq: The CQ to modify. |
| 1611 | * @cq_count: number of CQEs that will trigger an event |
| 1612 | * @cq_period: max period of time in usec before triggering an event |
| 1613 | * |
| 1614 | */ |
| 1615 | int ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period); |
| 1616 | |
| 1617 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1618 | * ib_destroy_cq - Destroys the specified CQ. |
| 1619 | * @cq: The CQ to destroy. |
| 1620 | */ |
| 1621 | int ib_destroy_cq(struct ib_cq *cq); |
| 1622 | |
| 1623 | /** |
| 1624 | * ib_poll_cq - poll a CQ for completion(s) |
| 1625 | * @cq:the CQ being polled |
| 1626 | * @num_entries:maximum number of completions to return |
| 1627 | * @wc:array of at least @num_entries &struct ib_wc where completions |
| 1628 | * will be returned |
| 1629 | * |
| 1630 | * Poll a CQ for (possibly multiple) completions. If the return value |
| 1631 | * is < 0, an error occurred. If the return value is >= 0, it is the |
| 1632 | * number of completions returned. If the return value is |
| 1633 | * non-negative and < num_entries, then the CQ was emptied. |
| 1634 | */ |
| 1635 | static inline int ib_poll_cq(struct ib_cq *cq, int num_entries, |
| 1636 | struct ib_wc *wc) |
| 1637 | { |
| 1638 | return cq->device->poll_cq(cq, num_entries, wc); |
| 1639 | } |
| 1640 | |
| 1641 | /** |
| 1642 | * ib_peek_cq - Returns the number of unreaped completions currently |
| 1643 | * on the specified CQ. |
| 1644 | * @cq: The CQ to peek. |
| 1645 | * @wc_cnt: A minimum number of unreaped completions to check for. |
| 1646 | * |
| 1647 | * If the number of unreaped completions is greater than or equal to wc_cnt, |
| 1648 | * this function returns wc_cnt, otherwise, it returns the actual number of |
| 1649 | * unreaped completions. |
| 1650 | */ |
| 1651 | int ib_peek_cq(struct ib_cq *cq, int wc_cnt); |
| 1652 | |
| 1653 | /** |
| 1654 | * ib_req_notify_cq - Request completion notification on a CQ. |
| 1655 | * @cq: The CQ to generate an event for. |
Roland Dreier | ed23a72 | 2007-05-06 21:02:48 -0700 | [diff] [blame] | 1656 | * @flags: |
| 1657 | * Must contain exactly one of %IB_CQ_SOLICITED or %IB_CQ_NEXT_COMP |
| 1658 | * to request an event on the next solicited event or next work |
| 1659 | * completion at any type, respectively. %IB_CQ_REPORT_MISSED_EVENTS |
| 1660 | * may also be |ed in to request a hint about missed events, as |
| 1661 | * described below. |
| 1662 | * |
| 1663 | * Return Value: |
| 1664 | * < 0 means an error occurred while requesting notification |
| 1665 | * == 0 means notification was requested successfully, and if |
| 1666 | * IB_CQ_REPORT_MISSED_EVENTS was passed in, then no events |
| 1667 | * were missed and it is safe to wait for another event. In |
| 1668 | * this case is it guaranteed that any work completions added |
| 1669 | * to the CQ since the last CQ poll will trigger a completion |
| 1670 | * notification event. |
| 1671 | * > 0 is only returned if IB_CQ_REPORT_MISSED_EVENTS was passed |
| 1672 | * in. It means that the consumer must poll the CQ again to |
| 1673 | * make sure it is empty to avoid missing an event because of a |
| 1674 | * race between requesting notification and an entry being |
| 1675 | * added to the CQ. This return value means it is possible |
| 1676 | * (but not guaranteed) that a work completion has been added |
| 1677 | * to the CQ since the last poll without triggering a |
| 1678 | * completion notification event. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1679 | */ |
| 1680 | static inline int ib_req_notify_cq(struct ib_cq *cq, |
Roland Dreier | ed23a72 | 2007-05-06 21:02:48 -0700 | [diff] [blame] | 1681 | enum ib_cq_notify_flags flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1682 | { |
Roland Dreier | ed23a72 | 2007-05-06 21:02:48 -0700 | [diff] [blame] | 1683 | return cq->device->req_notify_cq(cq, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1684 | } |
| 1685 | |
| 1686 | /** |
| 1687 | * ib_req_ncomp_notif - Request completion notification when there are |
| 1688 | * at least the specified number of unreaped completions on the CQ. |
| 1689 | * @cq: The CQ to generate an event for. |
| 1690 | * @wc_cnt: The number of unreaped completions that should be on the |
| 1691 | * CQ before an event is generated. |
| 1692 | */ |
| 1693 | static inline int ib_req_ncomp_notif(struct ib_cq *cq, int wc_cnt) |
| 1694 | { |
| 1695 | return cq->device->req_ncomp_notif ? |
| 1696 | cq->device->req_ncomp_notif(cq, wc_cnt) : |
| 1697 | -ENOSYS; |
| 1698 | } |
| 1699 | |
| 1700 | /** |
| 1701 | * ib_get_dma_mr - Returns a memory region for system memory that is |
| 1702 | * usable for DMA. |
| 1703 | * @pd: The protection domain associated with the memory region. |
| 1704 | * @mr_access_flags: Specifies the memory access rights. |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 1705 | * |
| 1706 | * Note that the ib_dma_*() functions defined below must be used |
| 1707 | * to create/destroy addresses used with the Lkey or Rkey returned |
| 1708 | * by ib_get_dma_mr(). |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1709 | */ |
| 1710 | struct ib_mr *ib_get_dma_mr(struct ib_pd *pd, int mr_access_flags); |
| 1711 | |
| 1712 | /** |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 1713 | * ib_dma_mapping_error - check a DMA addr for error |
| 1714 | * @dev: The device for which the dma_addr was created |
| 1715 | * @dma_addr: The DMA address to check |
| 1716 | */ |
| 1717 | static inline int ib_dma_mapping_error(struct ib_device *dev, u64 dma_addr) |
| 1718 | { |
Ben Collins | d1998ef | 2006-12-13 22:10:05 -0500 | [diff] [blame] | 1719 | if (dev->dma_ops) |
| 1720 | return dev->dma_ops->mapping_error(dev, dma_addr); |
FUJITA Tomonori | 8d8bb39 | 2008-07-25 19:44:49 -0700 | [diff] [blame] | 1721 | return dma_mapping_error(dev->dma_device, dma_addr); |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 1722 | } |
| 1723 | |
| 1724 | /** |
| 1725 | * ib_dma_map_single - Map a kernel virtual address to DMA address |
| 1726 | * @dev: The device for which the dma_addr is to be created |
| 1727 | * @cpu_addr: The kernel virtual address |
| 1728 | * @size: The size of the region in bytes |
| 1729 | * @direction: The direction of the DMA |
| 1730 | */ |
| 1731 | static inline u64 ib_dma_map_single(struct ib_device *dev, |
| 1732 | void *cpu_addr, size_t size, |
| 1733 | enum dma_data_direction direction) |
| 1734 | { |
Ben Collins | d1998ef | 2006-12-13 22:10:05 -0500 | [diff] [blame] | 1735 | if (dev->dma_ops) |
| 1736 | return dev->dma_ops->map_single(dev, cpu_addr, size, direction); |
| 1737 | return dma_map_single(dev->dma_device, cpu_addr, size, direction); |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 1738 | } |
| 1739 | |
| 1740 | /** |
| 1741 | * ib_dma_unmap_single - Destroy a mapping created by ib_dma_map_single() |
| 1742 | * @dev: The device for which the DMA address was created |
| 1743 | * @addr: The DMA address |
| 1744 | * @size: The size of the region in bytes |
| 1745 | * @direction: The direction of the DMA |
| 1746 | */ |
| 1747 | static inline void ib_dma_unmap_single(struct ib_device *dev, |
| 1748 | u64 addr, size_t size, |
| 1749 | enum dma_data_direction direction) |
| 1750 | { |
Ben Collins | d1998ef | 2006-12-13 22:10:05 -0500 | [diff] [blame] | 1751 | if (dev->dma_ops) |
| 1752 | dev->dma_ops->unmap_single(dev, addr, size, direction); |
| 1753 | else |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 1754 | dma_unmap_single(dev->dma_device, addr, size, direction); |
| 1755 | } |
| 1756 | |
Arthur Kepner | cb9fbc5 | 2008-04-29 01:00:34 -0700 | [diff] [blame] | 1757 | static inline u64 ib_dma_map_single_attrs(struct ib_device *dev, |
| 1758 | void *cpu_addr, size_t size, |
| 1759 | enum dma_data_direction direction, |
| 1760 | struct dma_attrs *attrs) |
| 1761 | { |
| 1762 | return dma_map_single_attrs(dev->dma_device, cpu_addr, size, |
| 1763 | direction, attrs); |
| 1764 | } |
| 1765 | |
| 1766 | static inline void ib_dma_unmap_single_attrs(struct ib_device *dev, |
| 1767 | u64 addr, size_t size, |
| 1768 | enum dma_data_direction direction, |
| 1769 | struct dma_attrs *attrs) |
| 1770 | { |
| 1771 | return dma_unmap_single_attrs(dev->dma_device, addr, size, |
| 1772 | direction, attrs); |
| 1773 | } |
| 1774 | |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 1775 | /** |
| 1776 | * ib_dma_map_page - Map a physical page to DMA address |
| 1777 | * @dev: The device for which the dma_addr is to be created |
| 1778 | * @page: The page to be mapped |
| 1779 | * @offset: The offset within the page |
| 1780 | * @size: The size of the region in bytes |
| 1781 | * @direction: The direction of the DMA |
| 1782 | */ |
| 1783 | static inline u64 ib_dma_map_page(struct ib_device *dev, |
| 1784 | struct page *page, |
| 1785 | unsigned long offset, |
| 1786 | size_t size, |
| 1787 | enum dma_data_direction direction) |
| 1788 | { |
Ben Collins | d1998ef | 2006-12-13 22:10:05 -0500 | [diff] [blame] | 1789 | if (dev->dma_ops) |
| 1790 | return dev->dma_ops->map_page(dev, page, offset, size, direction); |
| 1791 | return dma_map_page(dev->dma_device, page, offset, size, direction); |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 1792 | } |
| 1793 | |
| 1794 | /** |
| 1795 | * ib_dma_unmap_page - Destroy a mapping created by ib_dma_map_page() |
| 1796 | * @dev: The device for which the DMA address was created |
| 1797 | * @addr: The DMA address |
| 1798 | * @size: The size of the region in bytes |
| 1799 | * @direction: The direction of the DMA |
| 1800 | */ |
| 1801 | static inline void ib_dma_unmap_page(struct ib_device *dev, |
| 1802 | u64 addr, size_t size, |
| 1803 | enum dma_data_direction direction) |
| 1804 | { |
Ben Collins | d1998ef | 2006-12-13 22:10:05 -0500 | [diff] [blame] | 1805 | if (dev->dma_ops) |
| 1806 | dev->dma_ops->unmap_page(dev, addr, size, direction); |
| 1807 | else |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 1808 | dma_unmap_page(dev->dma_device, addr, size, direction); |
| 1809 | } |
| 1810 | |
| 1811 | /** |
| 1812 | * ib_dma_map_sg - Map a scatter/gather list to DMA addresses |
| 1813 | * @dev: The device for which the DMA addresses are to be created |
| 1814 | * @sg: The array of scatter/gather entries |
| 1815 | * @nents: The number of scatter/gather entries |
| 1816 | * @direction: The direction of the DMA |
| 1817 | */ |
| 1818 | static inline int ib_dma_map_sg(struct ib_device *dev, |
| 1819 | struct scatterlist *sg, int nents, |
| 1820 | enum dma_data_direction direction) |
| 1821 | { |
Ben Collins | d1998ef | 2006-12-13 22:10:05 -0500 | [diff] [blame] | 1822 | if (dev->dma_ops) |
| 1823 | return dev->dma_ops->map_sg(dev, sg, nents, direction); |
| 1824 | return dma_map_sg(dev->dma_device, sg, nents, direction); |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 1825 | } |
| 1826 | |
| 1827 | /** |
| 1828 | * ib_dma_unmap_sg - Unmap a scatter/gather list of DMA addresses |
| 1829 | * @dev: The device for which the DMA addresses were created |
| 1830 | * @sg: The array of scatter/gather entries |
| 1831 | * @nents: The number of scatter/gather entries |
| 1832 | * @direction: The direction of the DMA |
| 1833 | */ |
| 1834 | static inline void ib_dma_unmap_sg(struct ib_device *dev, |
| 1835 | struct scatterlist *sg, int nents, |
| 1836 | enum dma_data_direction direction) |
| 1837 | { |
Ben Collins | d1998ef | 2006-12-13 22:10:05 -0500 | [diff] [blame] | 1838 | if (dev->dma_ops) |
| 1839 | dev->dma_ops->unmap_sg(dev, sg, nents, direction); |
| 1840 | else |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 1841 | dma_unmap_sg(dev->dma_device, sg, nents, direction); |
| 1842 | } |
| 1843 | |
Arthur Kepner | cb9fbc5 | 2008-04-29 01:00:34 -0700 | [diff] [blame] | 1844 | static inline int ib_dma_map_sg_attrs(struct ib_device *dev, |
| 1845 | struct scatterlist *sg, int nents, |
| 1846 | enum dma_data_direction direction, |
| 1847 | struct dma_attrs *attrs) |
| 1848 | { |
| 1849 | return dma_map_sg_attrs(dev->dma_device, sg, nents, direction, attrs); |
| 1850 | } |
| 1851 | |
| 1852 | static inline void ib_dma_unmap_sg_attrs(struct ib_device *dev, |
| 1853 | struct scatterlist *sg, int nents, |
| 1854 | enum dma_data_direction direction, |
| 1855 | struct dma_attrs *attrs) |
| 1856 | { |
| 1857 | dma_unmap_sg_attrs(dev->dma_device, sg, nents, direction, attrs); |
| 1858 | } |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 1859 | /** |
| 1860 | * ib_sg_dma_address - Return the DMA address from a scatter/gather entry |
| 1861 | * @dev: The device for which the DMA addresses were created |
| 1862 | * @sg: The scatter/gather entry |
| 1863 | */ |
| 1864 | static inline u64 ib_sg_dma_address(struct ib_device *dev, |
| 1865 | struct scatterlist *sg) |
| 1866 | { |
Ben Collins | d1998ef | 2006-12-13 22:10:05 -0500 | [diff] [blame] | 1867 | if (dev->dma_ops) |
| 1868 | return dev->dma_ops->dma_address(dev, sg); |
| 1869 | return sg_dma_address(sg); |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 1870 | } |
| 1871 | |
| 1872 | /** |
| 1873 | * ib_sg_dma_len - Return the DMA length from a scatter/gather entry |
| 1874 | * @dev: The device for which the DMA addresses were created |
| 1875 | * @sg: The scatter/gather entry |
| 1876 | */ |
| 1877 | static inline unsigned int ib_sg_dma_len(struct ib_device *dev, |
| 1878 | struct scatterlist *sg) |
| 1879 | { |
Ben Collins | d1998ef | 2006-12-13 22:10:05 -0500 | [diff] [blame] | 1880 | if (dev->dma_ops) |
| 1881 | return dev->dma_ops->dma_len(dev, sg); |
| 1882 | return sg_dma_len(sg); |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 1883 | } |
| 1884 | |
| 1885 | /** |
| 1886 | * ib_dma_sync_single_for_cpu - Prepare DMA region to be accessed by CPU |
| 1887 | * @dev: The device for which the DMA address was created |
| 1888 | * @addr: The DMA address |
| 1889 | * @size: The size of the region in bytes |
| 1890 | * @dir: The direction of the DMA |
| 1891 | */ |
| 1892 | static inline void ib_dma_sync_single_for_cpu(struct ib_device *dev, |
| 1893 | u64 addr, |
| 1894 | size_t size, |
| 1895 | enum dma_data_direction dir) |
| 1896 | { |
Ben Collins | d1998ef | 2006-12-13 22:10:05 -0500 | [diff] [blame] | 1897 | if (dev->dma_ops) |
| 1898 | dev->dma_ops->sync_single_for_cpu(dev, addr, size, dir); |
| 1899 | else |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 1900 | dma_sync_single_for_cpu(dev->dma_device, addr, size, dir); |
| 1901 | } |
| 1902 | |
| 1903 | /** |
| 1904 | * ib_dma_sync_single_for_device - Prepare DMA region to be accessed by device |
| 1905 | * @dev: The device for which the DMA address was created |
| 1906 | * @addr: The DMA address |
| 1907 | * @size: The size of the region in bytes |
| 1908 | * @dir: The direction of the DMA |
| 1909 | */ |
| 1910 | static inline void ib_dma_sync_single_for_device(struct ib_device *dev, |
| 1911 | u64 addr, |
| 1912 | size_t size, |
| 1913 | enum dma_data_direction dir) |
| 1914 | { |
Ben Collins | d1998ef | 2006-12-13 22:10:05 -0500 | [diff] [blame] | 1915 | if (dev->dma_ops) |
| 1916 | dev->dma_ops->sync_single_for_device(dev, addr, size, dir); |
| 1917 | else |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 1918 | dma_sync_single_for_device(dev->dma_device, addr, size, dir); |
| 1919 | } |
| 1920 | |
| 1921 | /** |
| 1922 | * ib_dma_alloc_coherent - Allocate memory and map it for DMA |
| 1923 | * @dev: The device for which the DMA address is requested |
| 1924 | * @size: The size of the region to allocate in bytes |
| 1925 | * @dma_handle: A pointer for returning the DMA address of the region |
| 1926 | * @flag: memory allocator flags |
| 1927 | */ |
| 1928 | static inline void *ib_dma_alloc_coherent(struct ib_device *dev, |
| 1929 | size_t size, |
| 1930 | u64 *dma_handle, |
| 1931 | gfp_t flag) |
| 1932 | { |
Ben Collins | d1998ef | 2006-12-13 22:10:05 -0500 | [diff] [blame] | 1933 | if (dev->dma_ops) |
| 1934 | return dev->dma_ops->alloc_coherent(dev, size, dma_handle, flag); |
Roland Dreier | c59a3da | 2006-12-15 13:57:26 -0800 | [diff] [blame] | 1935 | else { |
| 1936 | dma_addr_t handle; |
| 1937 | void *ret; |
| 1938 | |
| 1939 | ret = dma_alloc_coherent(dev->dma_device, size, &handle, flag); |
| 1940 | *dma_handle = handle; |
| 1941 | return ret; |
| 1942 | } |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 1943 | } |
| 1944 | |
| 1945 | /** |
| 1946 | * ib_dma_free_coherent - Free memory allocated by ib_dma_alloc_coherent() |
| 1947 | * @dev: The device for which the DMA addresses were allocated |
| 1948 | * @size: The size of the region |
| 1949 | * @cpu_addr: the address returned by ib_dma_alloc_coherent() |
| 1950 | * @dma_handle: the DMA address returned by ib_dma_alloc_coherent() |
| 1951 | */ |
| 1952 | static inline void ib_dma_free_coherent(struct ib_device *dev, |
| 1953 | size_t size, void *cpu_addr, |
| 1954 | u64 dma_handle) |
| 1955 | { |
Ben Collins | d1998ef | 2006-12-13 22:10:05 -0500 | [diff] [blame] | 1956 | if (dev->dma_ops) |
| 1957 | dev->dma_ops->free_coherent(dev, size, cpu_addr, dma_handle); |
| 1958 | else |
Ralph Campbell | 9b51309 | 2006-12-12 14:27:41 -0800 | [diff] [blame] | 1959 | dma_free_coherent(dev->dma_device, size, cpu_addr, dma_handle); |
| 1960 | } |
| 1961 | |
| 1962 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1963 | * ib_reg_phys_mr - Prepares a virtually addressed memory region for use |
| 1964 | * by an HCA. |
| 1965 | * @pd: The protection domain associated assigned to the registered region. |
| 1966 | * @phys_buf_array: Specifies a list of physical buffers to use in the |
| 1967 | * memory region. |
| 1968 | * @num_phys_buf: Specifies the size of the phys_buf_array. |
| 1969 | * @mr_access_flags: Specifies the memory access rights. |
| 1970 | * @iova_start: The offset of the region's starting I/O virtual address. |
| 1971 | */ |
| 1972 | struct ib_mr *ib_reg_phys_mr(struct ib_pd *pd, |
| 1973 | struct ib_phys_buf *phys_buf_array, |
| 1974 | int num_phys_buf, |
| 1975 | int mr_access_flags, |
| 1976 | u64 *iova_start); |
| 1977 | |
| 1978 | /** |
| 1979 | * ib_rereg_phys_mr - Modifies the attributes of an existing memory region. |
| 1980 | * Conceptually, this call performs the functions deregister memory region |
| 1981 | * followed by register physical memory region. Where possible, |
| 1982 | * resources are reused instead of deallocated and reallocated. |
| 1983 | * @mr: The memory region to modify. |
| 1984 | * @mr_rereg_mask: A bit-mask used to indicate which of the following |
| 1985 | * properties of the memory region are being modified. |
| 1986 | * @pd: If %IB_MR_REREG_PD is set in mr_rereg_mask, this field specifies |
| 1987 | * the new protection domain to associated with the memory region, |
| 1988 | * otherwise, this parameter is ignored. |
| 1989 | * @phys_buf_array: If %IB_MR_REREG_TRANS is set in mr_rereg_mask, this |
| 1990 | * field specifies a list of physical buffers to use in the new |
| 1991 | * translation, otherwise, this parameter is ignored. |
| 1992 | * @num_phys_buf: If %IB_MR_REREG_TRANS is set in mr_rereg_mask, this |
| 1993 | * field specifies the size of the phys_buf_array, otherwise, this |
| 1994 | * parameter is ignored. |
| 1995 | * @mr_access_flags: If %IB_MR_REREG_ACCESS is set in mr_rereg_mask, this |
| 1996 | * field specifies the new memory access rights, otherwise, this |
| 1997 | * parameter is ignored. |
| 1998 | * @iova_start: The offset of the region's starting I/O virtual address. |
| 1999 | */ |
| 2000 | int ib_rereg_phys_mr(struct ib_mr *mr, |
| 2001 | int mr_rereg_mask, |
| 2002 | struct ib_pd *pd, |
| 2003 | struct ib_phys_buf *phys_buf_array, |
| 2004 | int num_phys_buf, |
| 2005 | int mr_access_flags, |
| 2006 | u64 *iova_start); |
| 2007 | |
| 2008 | /** |
| 2009 | * ib_query_mr - Retrieves information about a specific memory region. |
| 2010 | * @mr: The memory region to retrieve information about. |
| 2011 | * @mr_attr: The attributes of the specified memory region. |
| 2012 | */ |
| 2013 | int ib_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr); |
| 2014 | |
| 2015 | /** |
| 2016 | * ib_dereg_mr - Deregisters a memory region and removes it from the |
| 2017 | * HCA translation table. |
| 2018 | * @mr: The memory region to deregister. |
| 2019 | */ |
| 2020 | int ib_dereg_mr(struct ib_mr *mr); |
| 2021 | |
| 2022 | /** |
Steve Wise | 00f7ec3 | 2008-07-14 23:48:45 -0700 | [diff] [blame] | 2023 | * ib_alloc_fast_reg_mr - Allocates memory region usable with the |
| 2024 | * IB_WR_FAST_REG_MR send work request. |
| 2025 | * @pd: The protection domain associated with the region. |
| 2026 | * @max_page_list_len: requested max physical buffer list length to be |
| 2027 | * used with fast register work requests for this MR. |
| 2028 | */ |
| 2029 | struct ib_mr *ib_alloc_fast_reg_mr(struct ib_pd *pd, int max_page_list_len); |
| 2030 | |
| 2031 | /** |
| 2032 | * ib_alloc_fast_reg_page_list - Allocates a page list array |
| 2033 | * @device - ib device pointer. |
| 2034 | * @page_list_len - size of the page list array to be allocated. |
| 2035 | * |
| 2036 | * This allocates and returns a struct ib_fast_reg_page_list * and a |
| 2037 | * page_list array that is at least page_list_len in size. The actual |
| 2038 | * size is returned in max_page_list_len. The caller is responsible |
| 2039 | * for initializing the contents of the page_list array before posting |
| 2040 | * a send work request with the IB_WC_FAST_REG_MR opcode. |
| 2041 | * |
| 2042 | * The page_list array entries must be translated using one of the |
| 2043 | * ib_dma_*() functions just like the addresses passed to |
| 2044 | * ib_map_phys_fmr(). Once the ib_post_send() is issued, the struct |
| 2045 | * ib_fast_reg_page_list must not be modified by the caller until the |
| 2046 | * IB_WC_FAST_REG_MR work request completes. |
| 2047 | */ |
| 2048 | struct ib_fast_reg_page_list *ib_alloc_fast_reg_page_list( |
| 2049 | struct ib_device *device, int page_list_len); |
| 2050 | |
| 2051 | /** |
| 2052 | * ib_free_fast_reg_page_list - Deallocates a previously allocated |
| 2053 | * page list array. |
| 2054 | * @page_list - struct ib_fast_reg_page_list pointer to be deallocated. |
| 2055 | */ |
| 2056 | void ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list); |
| 2057 | |
| 2058 | /** |
| 2059 | * ib_update_fast_reg_key - updates the key portion of the fast_reg MR |
| 2060 | * R_Key and L_Key. |
| 2061 | * @mr - struct ib_mr pointer to be updated. |
| 2062 | * @newkey - new key to be used. |
| 2063 | */ |
| 2064 | static inline void ib_update_fast_reg_key(struct ib_mr *mr, u8 newkey) |
| 2065 | { |
| 2066 | mr->lkey = (mr->lkey & 0xffffff00) | newkey; |
| 2067 | mr->rkey = (mr->rkey & 0xffffff00) | newkey; |
| 2068 | } |
| 2069 | |
| 2070 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2071 | * ib_alloc_mw - Allocates a memory window. |
| 2072 | * @pd: The protection domain associated with the memory window. |
| 2073 | */ |
| 2074 | struct ib_mw *ib_alloc_mw(struct ib_pd *pd); |
| 2075 | |
| 2076 | /** |
| 2077 | * ib_bind_mw - Posts a work request to the send queue of the specified |
| 2078 | * QP, which binds the memory window to the given address range and |
| 2079 | * remote access attributes. |
| 2080 | * @qp: QP to post the bind work request on. |
| 2081 | * @mw: The memory window to bind. |
| 2082 | * @mw_bind: Specifies information about the memory window, including |
| 2083 | * its address range, remote access rights, and associated memory region. |
| 2084 | */ |
| 2085 | static inline int ib_bind_mw(struct ib_qp *qp, |
| 2086 | struct ib_mw *mw, |
| 2087 | struct ib_mw_bind *mw_bind) |
| 2088 | { |
| 2089 | /* XXX reference counting in corresponding MR? */ |
| 2090 | return mw->device->bind_mw ? |
| 2091 | mw->device->bind_mw(qp, mw, mw_bind) : |
| 2092 | -ENOSYS; |
| 2093 | } |
| 2094 | |
| 2095 | /** |
| 2096 | * ib_dealloc_mw - Deallocates a memory window. |
| 2097 | * @mw: The memory window to deallocate. |
| 2098 | */ |
| 2099 | int ib_dealloc_mw(struct ib_mw *mw); |
| 2100 | |
| 2101 | /** |
| 2102 | * ib_alloc_fmr - Allocates a unmapped fast memory region. |
| 2103 | * @pd: The protection domain associated with the unmapped region. |
| 2104 | * @mr_access_flags: Specifies the memory access rights. |
| 2105 | * @fmr_attr: Attributes of the unmapped region. |
| 2106 | * |
| 2107 | * A fast memory region must be mapped before it can be used as part of |
| 2108 | * a work request. |
| 2109 | */ |
| 2110 | struct ib_fmr *ib_alloc_fmr(struct ib_pd *pd, |
| 2111 | int mr_access_flags, |
| 2112 | struct ib_fmr_attr *fmr_attr); |
| 2113 | |
| 2114 | /** |
| 2115 | * ib_map_phys_fmr - Maps a list of physical pages to a fast memory region. |
| 2116 | * @fmr: The fast memory region to associate with the pages. |
| 2117 | * @page_list: An array of physical pages to map to the fast memory region. |
| 2118 | * @list_len: The number of pages in page_list. |
| 2119 | * @iova: The I/O virtual address to use with the mapped region. |
| 2120 | */ |
| 2121 | static inline int ib_map_phys_fmr(struct ib_fmr *fmr, |
| 2122 | u64 *page_list, int list_len, |
| 2123 | u64 iova) |
| 2124 | { |
| 2125 | return fmr->device->map_phys_fmr(fmr, page_list, list_len, iova); |
| 2126 | } |
| 2127 | |
| 2128 | /** |
| 2129 | * ib_unmap_fmr - Removes the mapping from a list of fast memory regions. |
| 2130 | * @fmr_list: A linked list of fast memory regions to unmap. |
| 2131 | */ |
| 2132 | int ib_unmap_fmr(struct list_head *fmr_list); |
| 2133 | |
| 2134 | /** |
| 2135 | * ib_dealloc_fmr - Deallocates a fast memory region. |
| 2136 | * @fmr: The fast memory region to deallocate. |
| 2137 | */ |
| 2138 | int ib_dealloc_fmr(struct ib_fmr *fmr); |
| 2139 | |
| 2140 | /** |
| 2141 | * ib_attach_mcast - Attaches the specified QP to a multicast group. |
| 2142 | * @qp: QP to attach to the multicast group. The QP must be type |
| 2143 | * IB_QPT_UD. |
| 2144 | * @gid: Multicast group GID. |
| 2145 | * @lid: Multicast group LID in host byte order. |
| 2146 | * |
| 2147 | * In order to send and receive multicast packets, subnet |
| 2148 | * administration must have created the multicast group and configured |
| 2149 | * the fabric appropriately. The port associated with the specified |
| 2150 | * QP must also be a member of the multicast group. |
| 2151 | */ |
| 2152 | int ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid); |
| 2153 | |
| 2154 | /** |
| 2155 | * ib_detach_mcast - Detaches the specified QP from a multicast group. |
| 2156 | * @qp: QP to detach from the multicast group. |
| 2157 | * @gid: Multicast group GID. |
| 2158 | * @lid: Multicast group LID in host byte order. |
| 2159 | */ |
| 2160 | int ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid); |
| 2161 | |
Sean Hefty | 59991f9 | 2011-05-23 17:52:46 -0700 | [diff] [blame] | 2162 | /** |
| 2163 | * ib_alloc_xrcd - Allocates an XRC domain. |
| 2164 | * @device: The device on which to allocate the XRC domain. |
| 2165 | */ |
| 2166 | struct ib_xrcd *ib_alloc_xrcd(struct ib_device *device); |
| 2167 | |
| 2168 | /** |
| 2169 | * ib_dealloc_xrcd - Deallocates an XRC domain. |
| 2170 | * @xrcd: The XRC domain to deallocate. |
| 2171 | */ |
| 2172 | int ib_dealloc_xrcd(struct ib_xrcd *xrcd); |
| 2173 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2174 | #endif /* IB_VERBS_H */ |