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_QP_GRP_H_ 35 #define USNIC_IB_QP_GRP_H_ 36 37 #include <linux/debugfs.h> 38 #include <rdma/ib_verbs.h> 39 40 #include "usnic_ib.h" 41 #include "usnic_abi.h" 42 #include "usnic_fwd.h" 43 #include "usnic_vnic.h" 44 45 /* 46 * The qp group struct represents all the hw resources needed to present a ib_qp 47 */ 48 struct usnic_ib_qp_grp { 49 struct ib_qp ibqp; 50 enum ib_qp_state state; 51 int grp_id; 52 53 struct usnic_fwd_dev *ufdev; 54 struct usnic_ib_ucontext *ctx; 55 struct list_head flows_lst; 56 57 struct usnic_vnic_res_chunk **res_chunk_list; 58 59 pid_t owner_pid; 60 struct usnic_ib_vf *vf; 61 struct list_head link; 62 63 spinlock_t lock; 64 65 struct kobject kobj; 66 }; 67 68 struct usnic_ib_qp_grp_flow { 69 struct usnic_fwd_flow *flow; 70 enum usnic_transport_type trans_type; 71 union { 72 struct { 73 uint16_t port_num; 74 } usnic_roce; 75 struct { 76 struct socket *sock; 77 } udp; 78 }; 79 struct usnic_ib_qp_grp *qp_grp; 80 struct list_head link; 81 82 /* Debug FS */ 83 struct dentry *dbgfs_dentry; 84 char dentry_name[32]; 85 }; 86 87 static const struct 88 usnic_vnic_res_spec min_transport_spec[USNIC_TRANSPORT_MAX] = { 89 { /*USNIC_TRANSPORT_UNKNOWN*/ 90 .resources = { 91 {.type = USNIC_VNIC_RES_TYPE_EOL, .cnt = 0,}, 92 }, 93 }, 94 { /*USNIC_TRANSPORT_ROCE_CUSTOM*/ 95 .resources = { 96 {.type = USNIC_VNIC_RES_TYPE_WQ, .cnt = 1,}, 97 {.type = USNIC_VNIC_RES_TYPE_RQ, .cnt = 1,}, 98 {.type = USNIC_VNIC_RES_TYPE_CQ, .cnt = 1,}, 99 {.type = USNIC_VNIC_RES_TYPE_EOL, .cnt = 0,}, 100 }, 101 }, 102 { /*USNIC_TRANSPORT_IPV4_UDP*/ 103 .resources = { 104 {.type = USNIC_VNIC_RES_TYPE_WQ, .cnt = 1,}, 105 {.type = USNIC_VNIC_RES_TYPE_RQ, .cnt = 1,}, 106 {.type = USNIC_VNIC_RES_TYPE_CQ, .cnt = 1,}, 107 {.type = USNIC_VNIC_RES_TYPE_EOL, .cnt = 0,}, 108 }, 109 }, 110 }; 111 112 const char *usnic_ib_qp_grp_state_to_string(enum ib_qp_state state); 113 int usnic_ib_qp_grp_dump_hdr(char *buf, int buf_sz); 114 int usnic_ib_qp_grp_dump_rows(void *obj, char *buf, int buf_sz); 115 struct usnic_ib_qp_grp * 116 usnic_ib_qp_grp_create(struct usnic_fwd_dev *ufdev, struct usnic_ib_vf *vf, 117 struct usnic_ib_pd *pd, 118 struct usnic_vnic_res_spec *res_spec, 119 struct usnic_transport_spec *trans_spec); 120 void usnic_ib_qp_grp_destroy(struct usnic_ib_qp_grp *qp_grp); 121 int usnic_ib_qp_grp_modify(struct usnic_ib_qp_grp *qp_grp, 122 enum ib_qp_state new_state, 123 void *data); 124 struct usnic_vnic_res_chunk 125 *usnic_ib_qp_grp_get_chunk(struct usnic_ib_qp_grp *qp_grp, 126 enum usnic_vnic_res_type type); 127 static inline 128 struct usnic_ib_qp_grp *to_uqp_grp(struct ib_qp *ibqp) 129 { 130 return container_of(ibqp, struct usnic_ib_qp_grp, ibqp); 131 } 132 #endif /* USNIC_IB_QP_GRP_H_ */ 133