1 /* 2 * Copyright (c) 2005 Topspin Communications. All rights reserved. 3 * Copyright (c) 2005 Cisco Systems. All rights reserved. 4 * Copyright (c) 2005 Mellanox Technologies. All rights reserved. 5 * Copyright (c) 2005 Voltaire, Inc. All rights reserved. 6 * 7 * This software is available to you under a choice of one of two 8 * licenses. You may choose to be licensed under the terms of the GNU 9 * General Public License (GPL) Version 2, available from the file 10 * COPYING in the main directory of this source tree, or the 11 * OpenIB.org BSD license below: 12 * 13 * Redistribution and use in source and binary forms, with or 14 * without modification, are permitted provided that the following 15 * conditions are met: 16 * 17 * - Redistributions of source code must retain the above 18 * copyright notice, this list of conditions and the following 19 * disclaimer. 20 * 21 * - Redistributions in binary form must reproduce the above 22 * copyright notice, this list of conditions and the following 23 * disclaimer in the documentation and/or other materials 24 * provided with the distribution. 25 * 26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 30 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 31 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 32 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 33 * SOFTWARE. 34 * 35 * $Id: uverbs.h 2559 2005-06-06 19:43:16Z roland $ 36 */ 37 38 #ifndef UVERBS_H 39 #define UVERBS_H 40 41 /* Include device.h and fs.h until cdev.h is self-sufficient */ 42 #include <linux/fs.h> 43 #include <linux/device.h> 44 #include <linux/cdev.h> 45 #include <linux/kref.h> 46 #include <linux/idr.h> 47 48 #include <rdma/ib_verbs.h> 49 #include <rdma/ib_user_verbs.h> 50 51 struct ib_uverbs_device { 52 int devnum; 53 struct cdev dev; 54 struct class_device class_dev; 55 struct ib_device *ib_dev; 56 int num_comp; 57 }; 58 59 struct ib_uverbs_event_file { 60 struct kref ref; 61 struct ib_uverbs_file *uverbs_file; 62 spinlock_t lock; 63 int fd; 64 int is_async; 65 wait_queue_head_t poll_wait; 66 struct fasync_struct *async_queue; 67 struct list_head event_list; 68 }; 69 70 struct ib_uverbs_file { 71 struct kref ref; 72 struct semaphore mutex; 73 struct ib_uverbs_device *device; 74 struct ib_ucontext *ucontext; 75 struct ib_event_handler event_handler; 76 struct ib_uverbs_event_file async_file; 77 struct ib_uverbs_event_file comp_file[1]; 78 }; 79 80 struct ib_uverbs_event { 81 union { 82 struct ib_uverbs_async_event_desc async; 83 struct ib_uverbs_comp_event_desc comp; 84 } desc; 85 struct list_head list; 86 struct list_head obj_list; 87 u32 *counter; 88 }; 89 90 struct ib_uevent_object { 91 struct ib_uobject uobject; 92 struct list_head event_list; 93 u32 events_reported; 94 }; 95 96 struct ib_ucq_object { 97 struct ib_uobject uobject; 98 struct list_head comp_list; 99 struct list_head async_list; 100 u32 comp_events_reported; 101 u32 async_events_reported; 102 }; 103 104 extern struct semaphore ib_uverbs_idr_mutex; 105 extern struct idr ib_uverbs_pd_idr; 106 extern struct idr ib_uverbs_mr_idr; 107 extern struct idr ib_uverbs_mw_idr; 108 extern struct idr ib_uverbs_ah_idr; 109 extern struct idr ib_uverbs_cq_idr; 110 extern struct idr ib_uverbs_qp_idr; 111 extern struct idr ib_uverbs_srq_idr; 112 113 void ib_uverbs_comp_handler(struct ib_cq *cq, void *cq_context); 114 void ib_uverbs_cq_event_handler(struct ib_event *event, void *context_ptr); 115 void ib_uverbs_qp_event_handler(struct ib_event *event, void *context_ptr); 116 void ib_uverbs_srq_event_handler(struct ib_event *event, void *context_ptr); 117 118 int ib_umem_get(struct ib_device *dev, struct ib_umem *mem, 119 void *addr, size_t size, int write); 120 void ib_umem_release(struct ib_device *dev, struct ib_umem *umem); 121 void ib_umem_release_on_close(struct ib_device *dev, struct ib_umem *umem); 122 123 #define IB_UVERBS_DECLARE_CMD(name) \ 124 ssize_t ib_uverbs_##name(struct ib_uverbs_file *file, \ 125 const char __user *buf, int in_len, \ 126 int out_len) 127 128 IB_UVERBS_DECLARE_CMD(query_params); 129 IB_UVERBS_DECLARE_CMD(get_context); 130 IB_UVERBS_DECLARE_CMD(query_device); 131 IB_UVERBS_DECLARE_CMD(query_port); 132 IB_UVERBS_DECLARE_CMD(query_gid); 133 IB_UVERBS_DECLARE_CMD(query_pkey); 134 IB_UVERBS_DECLARE_CMD(alloc_pd); 135 IB_UVERBS_DECLARE_CMD(dealloc_pd); 136 IB_UVERBS_DECLARE_CMD(reg_mr); 137 IB_UVERBS_DECLARE_CMD(dereg_mr); 138 IB_UVERBS_DECLARE_CMD(create_cq); 139 IB_UVERBS_DECLARE_CMD(destroy_cq); 140 IB_UVERBS_DECLARE_CMD(create_qp); 141 IB_UVERBS_DECLARE_CMD(modify_qp); 142 IB_UVERBS_DECLARE_CMD(destroy_qp); 143 IB_UVERBS_DECLARE_CMD(attach_mcast); 144 IB_UVERBS_DECLARE_CMD(detach_mcast); 145 IB_UVERBS_DECLARE_CMD(create_srq); 146 IB_UVERBS_DECLARE_CMD(modify_srq); 147 IB_UVERBS_DECLARE_CMD(destroy_srq); 148 149 #endif /* UVERBS_H */ 150