163fa15dbSBob Pearson // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB 28700e3e7SMoni Shoua /* 38700e3e7SMoni Shoua * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved. 48700e3e7SMoni Shoua * Copyright (c) 2015 System Fabric Works, Inc. All rights reserved. 58700e3e7SMoni Shoua */ 68700e3e7SMoni Shoua 78700e3e7SMoni Shoua #include "rxe.h" 88700e3e7SMoni Shoua #include "rxe_loc.h" 98700e3e7SMoni Shoua 10fa407188SKamal Heib void rxe_init_av(struct rdma_ah_attr *attr, struct rxe_av *av) 11fa407188SKamal Heib { 12fa407188SKamal Heib rxe_av_from_attr(rdma_ah_get_port_num(attr), av, attr); 13fa407188SKamal Heib rxe_av_fill_ip_info(av, attr); 14668aa15bSKamal Heib memcpy(av->dmac, attr->roce.dmac, ETH_ALEN); 15fa407188SKamal Heib } 16fa407188SKamal Heib 1790898850SDasaratharaman Chandramouli int rxe_av_chk_attr(struct rxe_dev *rxe, struct rdma_ah_attr *attr) 188700e3e7SMoni Shoua { 19edebc840SBob Pearson const struct ib_global_route *grh = rdma_ah_read_grh(attr); 208700e3e7SMoni Shoua struct rxe_port *port; 21edebc840SBob Pearson int type; 228700e3e7SMoni Shoua 238700e3e7SMoni Shoua port = &rxe->port; 248700e3e7SMoni Shoua 25d8966fcdSDasaratharaman Chandramouli if (rdma_ah_get_ah_flags(attr) & IB_AH_GRH) { 26edebc840SBob Pearson if (grh->sgid_index > port->attr.gid_tbl_len) { 27edebc840SBob Pearson pr_warn("invalid sgid index = %d\n", 28edebc840SBob Pearson grh->sgid_index); 29edebc840SBob Pearson return -EINVAL; 30edebc840SBob Pearson } 31d8966fcdSDasaratharaman Chandramouli 32edebc840SBob Pearson type = rdma_gid_attr_network_type(grh->sgid_attr); 33edebc840SBob Pearson if (type < RDMA_NETWORK_IPV4 || 34edebc840SBob Pearson type > RDMA_NETWORK_IPV6) { 35edebc840SBob Pearson pr_warn("invalid network type for rdma_rxe = %d\n", 36edebc840SBob Pearson type); 378700e3e7SMoni Shoua return -EINVAL; 388700e3e7SMoni Shoua } 398700e3e7SMoni Shoua } 408700e3e7SMoni Shoua 418700e3e7SMoni Shoua return 0; 428700e3e7SMoni Shoua } 438700e3e7SMoni Shoua 44ca3d9feeSZhu Yanjun void rxe_av_from_attr(u8 port_num, struct rxe_av *av, 451a241db1SZhu Yanjun struct rdma_ah_attr *attr) 468700e3e7SMoni Shoua { 477f3ee8e0SJason Gunthorpe const struct ib_global_route *grh = rdma_ah_read_grh(attr); 487f3ee8e0SJason Gunthorpe 498700e3e7SMoni Shoua memset(av, 0, sizeof(*av)); 507f3ee8e0SJason Gunthorpe memcpy(av->grh.dgid.raw, grh->dgid.raw, sizeof(grh->dgid.raw)); 517f3ee8e0SJason Gunthorpe av->grh.flow_label = grh->flow_label; 527f3ee8e0SJason Gunthorpe av->grh.sgid_index = grh->sgid_index; 537f3ee8e0SJason Gunthorpe av->grh.hop_limit = grh->hop_limit; 547f3ee8e0SJason Gunthorpe av->grh.traffic_class = grh->traffic_class; 558700e3e7SMoni Shoua av->port_num = port_num; 568700e3e7SMoni Shoua } 578700e3e7SMoni Shoua 58a402dc44SZhu Yanjun void rxe_av_to_attr(struct rxe_av *av, struct rdma_ah_attr *attr) 598700e3e7SMoni Shoua { 607f3ee8e0SJason Gunthorpe struct ib_global_route *grh = rdma_ah_retrieve_grh(attr); 617f3ee8e0SJason Gunthorpe 6244c58487SDasaratharaman Chandramouli attr->type = RDMA_AH_ATTR_TYPE_ROCE; 637f3ee8e0SJason Gunthorpe 647f3ee8e0SJason Gunthorpe memcpy(grh->dgid.raw, av->grh.dgid.raw, sizeof(av->grh.dgid.raw)); 657f3ee8e0SJason Gunthorpe grh->flow_label = av->grh.flow_label; 667f3ee8e0SJason Gunthorpe grh->sgid_index = av->grh.sgid_index; 677f3ee8e0SJason Gunthorpe grh->hop_limit = av->grh.hop_limit; 687f3ee8e0SJason Gunthorpe grh->traffic_class = av->grh.traffic_class; 697f3ee8e0SJason Gunthorpe 70d8966fcdSDasaratharaman Chandramouli rdma_ah_set_ah_flags(attr, IB_AH_GRH); 71d8966fcdSDasaratharaman Chandramouli rdma_ah_set_port_num(attr, av->port_num); 728700e3e7SMoni Shoua } 738700e3e7SMoni Shoua 7447ec3866SParav Pandit void rxe_av_fill_ip_info(struct rxe_av *av, struct rdma_ah_attr *attr) 758700e3e7SMoni Shoua { 7647ec3866SParav Pandit const struct ib_gid_attr *sgid_attr = attr->grh.sgid_attr; 77edebc840SBob Pearson int ibtype; 78edebc840SBob Pearson int type; 7947ec3866SParav Pandit 8047ec3866SParav Pandit rdma_gid2ip((struct sockaddr *)&av->sgid_addr, &sgid_attr->gid); 817061f28dSJason Gunthorpe rdma_gid2ip((struct sockaddr *)&av->dgid_addr, 827061f28dSJason Gunthorpe &rdma_ah_read_grh(attr)->dgid); 83edebc840SBob Pearson 84edebc840SBob Pearson ibtype = rdma_gid_attr_network_type(sgid_attr); 85edebc840SBob Pearson 86edebc840SBob Pearson switch (ibtype) { 87edebc840SBob Pearson case RDMA_NETWORK_IPV4: 88edebc840SBob Pearson type = RXE_NETWORK_TYPE_IPV4; 89edebc840SBob Pearson break; 90edebc840SBob Pearson case RDMA_NETWORK_IPV6: 91*45062f44SBob Pearson type = RXE_NETWORK_TYPE_IPV6; 92edebc840SBob Pearson break; 93edebc840SBob Pearson default: 94edebc840SBob Pearson /* not reached - checked in rxe_av_chk_attr */ 95edebc840SBob Pearson type = 0; 96edebc840SBob Pearson break; 97edebc840SBob Pearson } 98edebc840SBob Pearson 99edebc840SBob Pearson av->network_type = type; 1008700e3e7SMoni Shoua } 1018700e3e7SMoni Shoua 1028700e3e7SMoni Shoua struct rxe_av *rxe_get_av(struct rxe_pkt_info *pkt) 1038700e3e7SMoni Shoua { 1048700e3e7SMoni Shoua if (!pkt || !pkt->qp) 1058700e3e7SMoni Shoua return NULL; 1068700e3e7SMoni Shoua 1078700e3e7SMoni Shoua if (qp_type(pkt->qp) == IB_QPT_RC || qp_type(pkt->qp) == IB_QPT_UC) 1088700e3e7SMoni Shoua return &pkt->qp->pri_av; 1098700e3e7SMoni Shoua 1108700e3e7SMoni Shoua return (pkt->wqe) ? &pkt->wqe->av : NULL; 1118700e3e7SMoni Shoua } 112