1 /* 2 * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved. 3 * Copyright (c) 2015 System Fabric Works, Inc. 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 34 #include "rxe.h" 35 #include "rxe_loc.h" 36 37 int rxe_av_chk_attr(struct rxe_dev *rxe, struct rdma_ah_attr *attr) 38 { 39 struct rxe_port *port; 40 41 if (attr->port_num != 1) { 42 pr_info("invalid port_num = %d\n", attr->port_num); 43 return -EINVAL; 44 } 45 46 port = &rxe->port; 47 48 if (attr->ah_flags & IB_AH_GRH) { 49 if (attr->grh.sgid_index > port->attr.gid_tbl_len) { 50 pr_info("invalid sgid index = %d\n", 51 attr->grh.sgid_index); 52 return -EINVAL; 53 } 54 } 55 56 return 0; 57 } 58 59 int rxe_av_from_attr(struct rxe_dev *rxe, u8 port_num, 60 struct rxe_av *av, struct rdma_ah_attr *attr) 61 { 62 memset(av, 0, sizeof(*av)); 63 memcpy(&av->grh, &attr->grh, sizeof(attr->grh)); 64 av->port_num = port_num; 65 return 0; 66 } 67 68 int rxe_av_to_attr(struct rxe_dev *rxe, struct rxe_av *av, 69 struct rdma_ah_attr *attr) 70 { 71 memcpy(&attr->grh, &av->grh, sizeof(av->grh)); 72 attr->ah_flags = IB_AH_GRH; 73 attr->port_num = av->port_num; 74 return 0; 75 } 76 77 int rxe_av_fill_ip_info(struct rxe_dev *rxe, 78 struct rxe_av *av, 79 struct rdma_ah_attr *attr, 80 struct ib_gid_attr *sgid_attr, 81 union ib_gid *sgid) 82 { 83 rdma_gid2ip(&av->sgid_addr._sockaddr, sgid); 84 rdma_gid2ip(&av->dgid_addr._sockaddr, &attr->grh.dgid); 85 av->network_type = ib_gid_to_network_type(sgid_attr->gid_type, sgid); 86 87 return 0; 88 } 89 90 struct rxe_av *rxe_get_av(struct rxe_pkt_info *pkt) 91 { 92 if (!pkt || !pkt->qp) 93 return NULL; 94 95 if (qp_type(pkt->qp) == IB_QPT_RC || qp_type(pkt->qp) == IB_QPT_UC) 96 return &pkt->qp->pri_av; 97 98 return (pkt->wqe) ? &pkt->wqe->av : NULL; 99 } 100