2 * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
3 * Copyright (c) 2015 System Fabric Works, Inc. All rights reserved.
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:
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
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.
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
37 int rxe_av_chk_attr(struct rxe_dev *rxe, struct rdma_ah_attr *attr)
39 struct rxe_port *port;
43 if (rdma_ah_get_ah_flags(attr) & IB_AH_GRH) {
44 u8 sgid_index = rdma_ah_read_grh(attr)->sgid_index;
46 if (sgid_index > port->attr.gid_tbl_len) {
47 pr_warn("invalid sgid index = %d\n", sgid_index);
55 int rxe_av_from_attr(struct rxe_dev *rxe, u8 port_num,
56 struct rxe_av *av, struct rdma_ah_attr *attr)
58 memset(av, 0, sizeof(*av));
59 memcpy(&av->grh, rdma_ah_read_grh(attr),
60 sizeof(*rdma_ah_read_grh(attr)));
61 av->port_num = port_num;
65 int rxe_av_to_attr(struct rxe_dev *rxe, struct rxe_av *av,
66 struct rdma_ah_attr *attr)
68 attr->type = RDMA_AH_ATTR_TYPE_ROCE;
69 memcpy(rdma_ah_retrieve_grh(attr), &av->grh, sizeof(av->grh));
70 rdma_ah_set_ah_flags(attr, IB_AH_GRH);
71 rdma_ah_set_port_num(attr, av->port_num);
75 int rxe_av_fill_ip_info(struct rxe_dev *rxe,
77 struct rdma_ah_attr *attr,
78 struct ib_gid_attr *sgid_attr,
81 rdma_gid2ip(&av->sgid_addr._sockaddr, sgid);
82 rdma_gid2ip(&av->dgid_addr._sockaddr, &rdma_ah_read_grh(attr)->dgid);
83 av->network_type = ib_gid_to_network_type(sgid_attr->gid_type, sgid);
88 struct rxe_av *rxe_get_av(struct rxe_pkt_info *pkt)
93 if (qp_type(pkt->qp) == IB_QPT_RC || qp_type(pkt->qp) == IB_QPT_UC)
94 return &pkt->qp->pri_av;
96 return (pkt->wqe) ? &pkt->wqe->av : NULL;