1 /* 2 * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. 3 * 4 * This program is free software; you may redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; version 2 of the License. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 9 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 10 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 11 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 12 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 13 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 14 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 15 * SOFTWARE. 16 * 17 */ 18 19 #ifndef USNIC_IB_QP_GRP_H_ 20 #define USNIC_IB_QP_GRP_H_ 21 22 #include <linux/debugfs.h> 23 #include <rdma/ib_verbs.h> 24 25 #include "usnic_ib.h" 26 #include "usnic_abi.h" 27 #include "usnic_fwd.h" 28 #include "usnic_vnic.h" 29 30 /* 31 * The qp group struct represents all the hw resources needed to present a ib_qp 32 */ 33 struct usnic_ib_qp_grp { 34 struct ib_qp ibqp; 35 enum ib_qp_state state; 36 int grp_id; 37 38 struct usnic_fwd_dev *ufdev; 39 struct usnic_ib_ucontext *ctx; 40 struct list_head flows_lst; 41 42 struct usnic_vnic_res_chunk **res_chunk_list; 43 44 pid_t owner_pid; 45 struct usnic_ib_vf *vf; 46 struct list_head link; 47 48 spinlock_t lock; 49 50 struct kobject kobj; 51 }; 52 53 struct usnic_ib_qp_grp_flow { 54 struct usnic_fwd_flow *flow; 55 enum usnic_transport_type trans_type; 56 union { 57 struct { 58 uint16_t port_num; 59 } usnic_roce; 60 struct { 61 struct socket *sock; 62 } udp; 63 }; 64 struct usnic_ib_qp_grp *qp_grp; 65 struct list_head link; 66 67 /* Debug FS */ 68 struct dentry *dbgfs_dentry; 69 char dentry_name[32]; 70 }; 71 72 static const struct 73 usnic_vnic_res_spec min_transport_spec[USNIC_TRANSPORT_MAX] = { 74 { /*USNIC_TRANSPORT_UNKNOWN*/ 75 .resources = { 76 {.type = USNIC_VNIC_RES_TYPE_EOL, .cnt = 0,}, 77 }, 78 }, 79 { /*USNIC_TRANSPORT_ROCE_CUSTOM*/ 80 .resources = { 81 {.type = USNIC_VNIC_RES_TYPE_WQ, .cnt = 1,}, 82 {.type = USNIC_VNIC_RES_TYPE_RQ, .cnt = 1,}, 83 {.type = USNIC_VNIC_RES_TYPE_CQ, .cnt = 1,}, 84 {.type = USNIC_VNIC_RES_TYPE_EOL, .cnt = 0,}, 85 }, 86 }, 87 { /*USNIC_TRANSPORT_IPV4_UDP*/ 88 .resources = { 89 {.type = USNIC_VNIC_RES_TYPE_WQ, .cnt = 1,}, 90 {.type = USNIC_VNIC_RES_TYPE_RQ, .cnt = 1,}, 91 {.type = USNIC_VNIC_RES_TYPE_CQ, .cnt = 1,}, 92 {.type = USNIC_VNIC_RES_TYPE_EOL, .cnt = 0,}, 93 }, 94 }, 95 }; 96 97 const char *usnic_ib_qp_grp_state_to_string(enum ib_qp_state state); 98 int usnic_ib_qp_grp_dump_hdr(char *buf, int buf_sz); 99 int usnic_ib_qp_grp_dump_rows(void *obj, char *buf, int buf_sz); 100 struct usnic_ib_qp_grp * 101 usnic_ib_qp_grp_create(struct usnic_fwd_dev *ufdev, struct usnic_ib_vf *vf, 102 struct usnic_ib_pd *pd, 103 struct usnic_vnic_res_spec *res_spec, 104 struct usnic_transport_spec *trans_spec); 105 void usnic_ib_qp_grp_destroy(struct usnic_ib_qp_grp *qp_grp); 106 int usnic_ib_qp_grp_modify(struct usnic_ib_qp_grp *qp_grp, 107 enum ib_qp_state new_state, 108 void *data); 109 struct usnic_vnic_res_chunk 110 *usnic_ib_qp_grp_get_chunk(struct usnic_ib_qp_grp *qp_grp, 111 enum usnic_vnic_res_type type); 112 static inline 113 struct usnic_ib_qp_grp *to_uqp_grp(struct ib_qp *ibqp) 114 { 115 return container_of(ibqp, struct usnic_ib_qp_grp, ibqp); 116 } 117 #endif /* USNIC_IB_QP_GRP_H_ */ 118