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111 lines
2.8 KiB
111 lines
2.8 KiB
// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB |
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/* |
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* Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved. |
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* Copyright (c) 2015 System Fabric Works, Inc. All rights reserved. |
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*/ |
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#include "rxe.h" |
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#include "rxe_loc.h" |
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void rxe_init_av(struct rdma_ah_attr *attr, struct rxe_av *av) |
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{ |
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rxe_av_from_attr(rdma_ah_get_port_num(attr), av, attr); |
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rxe_av_fill_ip_info(av, attr); |
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memcpy(av->dmac, attr->roce.dmac, ETH_ALEN); |
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} |
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int rxe_av_chk_attr(struct rxe_dev *rxe, struct rdma_ah_attr *attr) |
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{ |
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const struct ib_global_route *grh = rdma_ah_read_grh(attr); |
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struct rxe_port *port; |
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int type; |
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port = &rxe->port; |
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if (rdma_ah_get_ah_flags(attr) & IB_AH_GRH) { |
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if (grh->sgid_index > port->attr.gid_tbl_len) { |
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pr_warn("invalid sgid index = %d\n", |
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grh->sgid_index); |
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return -EINVAL; |
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} |
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type = rdma_gid_attr_network_type(grh->sgid_attr); |
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if (type < RDMA_NETWORK_IPV4 || |
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type > RDMA_NETWORK_IPV6) { |
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pr_warn("invalid network type for rdma_rxe = %d\n", |
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type); |
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return -EINVAL; |
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} |
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} |
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return 0; |
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} |
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void rxe_av_from_attr(u8 port_num, struct rxe_av *av, |
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struct rdma_ah_attr *attr) |
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{ |
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const struct ib_global_route *grh = rdma_ah_read_grh(attr); |
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memset(av, 0, sizeof(*av)); |
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memcpy(av->grh.dgid.raw, grh->dgid.raw, sizeof(grh->dgid.raw)); |
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av->grh.flow_label = grh->flow_label; |
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av->grh.sgid_index = grh->sgid_index; |
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av->grh.hop_limit = grh->hop_limit; |
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av->grh.traffic_class = grh->traffic_class; |
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av->port_num = port_num; |
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} |
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void rxe_av_to_attr(struct rxe_av *av, struct rdma_ah_attr *attr) |
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{ |
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struct ib_global_route *grh = rdma_ah_retrieve_grh(attr); |
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attr->type = RDMA_AH_ATTR_TYPE_ROCE; |
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memcpy(grh->dgid.raw, av->grh.dgid.raw, sizeof(av->grh.dgid.raw)); |
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grh->flow_label = av->grh.flow_label; |
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grh->sgid_index = av->grh.sgid_index; |
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grh->hop_limit = av->grh.hop_limit; |
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grh->traffic_class = av->grh.traffic_class; |
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rdma_ah_set_ah_flags(attr, IB_AH_GRH); |
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rdma_ah_set_port_num(attr, av->port_num); |
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} |
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void rxe_av_fill_ip_info(struct rxe_av *av, struct rdma_ah_attr *attr) |
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{ |
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const struct ib_gid_attr *sgid_attr = attr->grh.sgid_attr; |
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int ibtype; |
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int type; |
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rdma_gid2ip((struct sockaddr *)&av->sgid_addr, &sgid_attr->gid); |
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rdma_gid2ip((struct sockaddr *)&av->dgid_addr, |
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&rdma_ah_read_grh(attr)->dgid); |
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ibtype = rdma_gid_attr_network_type(sgid_attr); |
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switch (ibtype) { |
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case RDMA_NETWORK_IPV4: |
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type = RXE_NETWORK_TYPE_IPV4; |
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break; |
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case RDMA_NETWORK_IPV6: |
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type = RXE_NETWORK_TYPE_IPV6; |
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break; |
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default: |
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/* not reached - checked in rxe_av_chk_attr */ |
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type = 0; |
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break; |
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} |
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av->network_type = type; |
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} |
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struct rxe_av *rxe_get_av(struct rxe_pkt_info *pkt) |
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{ |
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if (!pkt || !pkt->qp) |
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return NULL; |
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if (qp_type(pkt->qp) == IB_QPT_RC || qp_type(pkt->qp) == IB_QPT_UC) |
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return &pkt->qp->pri_av; |
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return (pkt->wqe) ? &pkt->wqe->av : NULL; |
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}
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