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