mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 12:34:55 +07:00
668aa15b5b
Currently a packet is marked for loopback only if the source and destination addresses equals. This is not enough when multiple gids are present in rxe device's gid table and the traffic is from one gid to another. Fix it by marking the packet for loopback if the destination MAC address is equal to the source MAC address. Signed-off-by: Kamal Heib <kamalheib1@gmail.com> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Tested-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
112 lines
3.5 KiB
C
112 lines
3.5 KiB
C
/*
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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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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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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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struct rxe_port *port;
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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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u8 sgid_index = rdma_ah_read_grh(attr)->sgid_index;
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if (sgid_index > port->attr.gid_tbl_len) {
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pr_warn("invalid sgid index = %d\n", sgid_index);
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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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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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av->network_type = rdma_gid_attr_network_type(sgid_attr);
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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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