diff options
Diffstat (limited to 'drivers/infiniband/sw/rxe/rxe_av.c')
-rw-r--r-- | drivers/infiniband/sw/rxe/rxe_av.c | 101 |
1 files changed, 67 insertions, 34 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_av.c b/drivers/infiniband/sw/rxe/rxe_av.c index 81ee756c19b8..3b05314ca739 100644 --- a/drivers/infiniband/sw/rxe/rxe_av.c +++ b/drivers/infiniband/sw/rxe/rxe_av.c @@ -1,34 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB /* * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved. * Copyright (c) 2015 System Fabric Works, Inc. All rights reserved. - * - * This software is available to you under a choice of one of two - * licenses. You may choose to be licensed under the terms of the GNU - * General Public License (GPL) Version 2, available from the file - * COPYING in the main directory of this source tree, or the - * OpenIB.org BSD license below: - * - * Redistribution and use in source and binary forms, with or - * without modification, are permitted provided that the following - * conditions are met: - * - * - Redistributions of source code must retain the above - * copyright notice, this list of conditions and the following - * disclaimer. - * - * - Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials - * provided with the distribution. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. */ #include "rxe.h" @@ -43,15 +16,24 @@ void rxe_init_av(struct rdma_ah_attr *attr, struct rxe_av *av) int rxe_av_chk_attr(struct rxe_dev *rxe, struct rdma_ah_attr *attr) { + const struct ib_global_route *grh = rdma_ah_read_grh(attr); struct rxe_port *port; + int type; port = &rxe->port; if (rdma_ah_get_ah_flags(attr) & IB_AH_GRH) { - u8 sgid_index = rdma_ah_read_grh(attr)->sgid_index; + if (grh->sgid_index > port->attr.gid_tbl_len) { + pr_warn("invalid sgid index = %d\n", + grh->sgid_index); + return -EINVAL; + } - if (sgid_index > port->attr.gid_tbl_len) { - pr_warn("invalid sgid index = %d\n", sgid_index); + type = rdma_gid_attr_network_type(grh->sgid_attr); + if (type < RDMA_NETWORK_IPV4 || + type > RDMA_NETWORK_IPV6) { + pr_warn("invalid network type for rdma_rxe = %d\n", + type); return -EINVAL; } } @@ -92,20 +74,71 @@ void rxe_av_to_attr(struct rxe_av *av, struct rdma_ah_attr *attr) void rxe_av_fill_ip_info(struct rxe_av *av, struct rdma_ah_attr *attr) { const struct ib_gid_attr *sgid_attr = attr->grh.sgid_attr; + int ibtype; + int type; rdma_gid2ip((struct sockaddr *)&av->sgid_addr, &sgid_attr->gid); rdma_gid2ip((struct sockaddr *)&av->dgid_addr, &rdma_ah_read_grh(attr)->dgid); - av->network_type = rdma_gid_attr_network_type(sgid_attr); + + ibtype = rdma_gid_attr_network_type(sgid_attr); + + switch (ibtype) { + case RDMA_NETWORK_IPV4: + type = RXE_NETWORK_TYPE_IPV4; + break; + case RDMA_NETWORK_IPV6: + type = RXE_NETWORK_TYPE_IPV6; + break; + default: + /* not reached - checked in rxe_av_chk_attr */ + type = 0; + break; + } + + av->network_type = type; } -struct rxe_av *rxe_get_av(struct rxe_pkt_info *pkt) +struct rxe_av *rxe_get_av(struct rxe_pkt_info *pkt, struct rxe_ah **ahp) { + struct rxe_ah *ah; + u32 ah_num; + + if (ahp) + *ahp = NULL; + if (!pkt || !pkt->qp) return NULL; if (qp_type(pkt->qp) == IB_QPT_RC || qp_type(pkt->qp) == IB_QPT_UC) return &pkt->qp->pri_av; - return (pkt->wqe) ? &pkt->wqe->av : NULL; + if (!pkt->wqe) + return NULL; + + ah_num = pkt->wqe->wr.wr.ud.ah_num; + if (ah_num) { + /* only new user provider or kernel client */ + ah = rxe_pool_get_index(&pkt->rxe->ah_pool, ah_num); + if (!ah) { + pr_warn("Unable to find AH matching ah_num\n"); + return NULL; + } + + if (rxe_ah_pd(ah) != pkt->qp->pd) { + pr_warn("PDs don't match for AH and QP\n"); + rxe_put(ah); + return NULL; + } + + if (ahp) + *ahp = ah; + else + rxe_put(ah); + + return &ah->av; + } + + /* only old user provider for UD sends*/ + return &pkt->wqe->wr.wr.ud.av; } |