1 /* 2 * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 * 32 */ 33 34 #ifndef USNIC_IB_H_ 35 #define USNIC_IB_H_ 36 37 #include <linux/iommu.h> 38 #include <linux/netdevice.h> 39 40 #include <rdma/ib_verbs.h> 41 42 43 #include "usnic.h" 44 #include "usnic_abi.h" 45 #include "usnic_vnic.h" 46 47 #define USNIC_IB_PORT_CNT 1 48 #define USNIC_IB_NUM_COMP_VECTORS 1 49 50 extern unsigned int usnic_ib_share_vf; 51 52 struct usnic_ib_ucontext { 53 struct ib_ucontext ibucontext; 54 /* Protected by usnic_ib_dev->usdev_lock */ 55 struct list_head qp_grp_list; 56 struct list_head link; 57 }; 58 59 struct usnic_ib_pd { 60 struct ib_pd ibpd; 61 struct usnic_uiom_pd *umem_pd; 62 }; 63 64 struct usnic_ib_mr { 65 struct ib_mr ibmr; 66 struct usnic_uiom_reg *umem; 67 }; 68 69 struct usnic_ib_dev { 70 struct ib_device ib_dev; 71 struct pci_dev *pdev; 72 struct net_device *netdev; 73 struct usnic_fwd_dev *ufdev; 74 struct list_head ib_dev_link; 75 struct list_head vf_dev_list; 76 struct list_head ctx_list; 77 struct mutex usdev_lock; 78 79 /* provisioning information */ 80 struct kref vf_cnt; 81 unsigned int vf_res_cnt[USNIC_VNIC_RES_TYPE_MAX]; 82 83 /* sysfs vars for QPN reporting */ 84 struct kobject *qpn_kobj; 85 }; 86 87 struct usnic_ib_vf { 88 struct usnic_ib_dev *pf; 89 spinlock_t lock; 90 struct usnic_vnic *vnic; 91 unsigned int qp_grp_ref_cnt; 92 struct usnic_ib_pd *pd; 93 struct list_head link; 94 }; 95 96 static inline 97 struct usnic_ib_dev *to_usdev(struct ib_device *ibdev) 98 { 99 return container_of(ibdev, struct usnic_ib_dev, ib_dev); 100 } 101 102 static inline 103 struct usnic_ib_ucontext *to_ucontext(struct ib_ucontext *ibucontext) 104 { 105 return container_of(ibucontext, struct usnic_ib_ucontext, ibucontext); 106 } 107 108 static inline 109 struct usnic_ib_pd *to_upd(struct ib_pd *ibpd) 110 { 111 return container_of(ibpd, struct usnic_ib_pd, ibpd); 112 } 113 114 static inline 115 struct usnic_ib_ucontext *to_uucontext(struct ib_ucontext *ibucontext) 116 { 117 return container_of(ibucontext, struct usnic_ib_ucontext, ibucontext); 118 } 119 120 static inline 121 struct usnic_ib_mr *to_umr(struct ib_mr *ibmr) 122 { 123 return container_of(ibmr, struct usnic_ib_mr, ibmr); 124 } 125 void usnic_ib_log_vf(struct usnic_ib_vf *vf); 126 127 #define UPDATE_PTR_LEFT(N, P, L) \ 128 do { \ 129 L -= (N); \ 130 P += (N); \ 131 } while (0) 132 133 #endif /* USNIC_IB_H_ */ 134