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_cq { 65 struct ib_cq ibcq; 66 }; 67 68 struct usnic_ib_mr { 69 struct ib_mr ibmr; 70 struct usnic_uiom_reg *umem; 71 }; 72 73 struct usnic_ib_dev { 74 struct ib_device ib_dev; 75 struct pci_dev *pdev; 76 struct net_device *netdev; 77 struct usnic_fwd_dev *ufdev; 78 struct list_head ib_dev_link; 79 struct list_head vf_dev_list; 80 struct list_head ctx_list; 81 struct mutex usdev_lock; 82 83 /* provisioning information */ 84 struct kref vf_cnt; 85 unsigned int vf_res_cnt[USNIC_VNIC_RES_TYPE_MAX]; 86 87 /* sysfs vars for QPN reporting */ 88 struct kobject *qpn_kobj; 89 }; 90 91 struct usnic_ib_vf { 92 struct usnic_ib_dev *pf; 93 spinlock_t lock; 94 struct usnic_vnic *vnic; 95 unsigned int qp_grp_ref_cnt; 96 struct usnic_ib_pd *pd; 97 struct list_head link; 98 }; 99 100 static inline 101 struct usnic_ib_dev *to_usdev(struct ib_device *ibdev) 102 { 103 return container_of(ibdev, struct usnic_ib_dev, ib_dev); 104 } 105 106 static inline 107 struct usnic_ib_ucontext *to_ucontext(struct ib_ucontext *ibucontext) 108 { 109 return container_of(ibucontext, struct usnic_ib_ucontext, ibucontext); 110 } 111 112 static inline 113 struct usnic_ib_pd *to_upd(struct ib_pd *ibpd) 114 { 115 return container_of(ibpd, struct usnic_ib_pd, ibpd); 116 } 117 118 static inline 119 struct usnic_ib_ucontext *to_uucontext(struct ib_ucontext *ibucontext) 120 { 121 return container_of(ibucontext, struct usnic_ib_ucontext, ibucontext); 122 } 123 124 static inline 125 struct usnic_ib_mr *to_umr(struct ib_mr *ibmr) 126 { 127 return container_of(ibmr, struct usnic_ib_mr, ibmr); 128 } 129 void usnic_ib_log_vf(struct usnic_ib_vf *vf); 130 131 #define UPDATE_PTR_LEFT(N, P, L) \ 132 do { \ 133 L -= (N); \ 134 P += (N); \ 135 } while (0) 136 137 #endif /* USNIC_IB_H_ */ 138