216 lines
7.2 KiB
C
216 lines
7.2 KiB
C
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/*
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* Copyright (c) 2005 Intel Corporation. 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 <linux/export.h>
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#include <rdma/ib_marshall.h>
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#define OPA_DEFAULT_GID_PREFIX cpu_to_be64(0xfe80000000000000ULL)
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static int rdma_ah_conv_opa_to_ib(struct ib_device *dev,
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struct rdma_ah_attr *ib,
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struct rdma_ah_attr *opa)
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{
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struct ib_port_attr port_attr;
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int ret = 0;
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/* Do structure copy and the over-write fields */
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*ib = *opa;
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ib->type = RDMA_AH_ATTR_TYPE_IB;
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rdma_ah_set_grh(ib, NULL, 0, 0, 1, 0);
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if (ib_query_port(dev, opa->port_num, &port_attr)) {
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/* Set to default subnet to indicate error */
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rdma_ah_set_subnet_prefix(ib, OPA_DEFAULT_GID_PREFIX);
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ret = -EINVAL;
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} else {
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rdma_ah_set_subnet_prefix(ib,
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cpu_to_be64(port_attr.subnet_prefix));
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}
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rdma_ah_set_interface_id(ib, OPA_MAKE_ID(rdma_ah_get_dlid(opa)));
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return ret;
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}
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void ib_copy_ah_attr_to_user(struct ib_device *device,
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struct ib_uverbs_ah_attr *dst,
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struct rdma_ah_attr *ah_attr)
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{
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struct rdma_ah_attr *src = ah_attr;
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struct rdma_ah_attr conv_ah;
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memset(&dst->grh, 0, sizeof(dst->grh));
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if ((ah_attr->type == RDMA_AH_ATTR_TYPE_OPA) &&
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(rdma_ah_get_dlid(ah_attr) > be16_to_cpu(IB_LID_PERMISSIVE)) &&
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(!rdma_ah_conv_opa_to_ib(device, &conv_ah, ah_attr)))
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src = &conv_ah;
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dst->dlid = rdma_ah_get_dlid(src);
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dst->sl = rdma_ah_get_sl(src);
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dst->src_path_bits = rdma_ah_get_path_bits(src);
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dst->static_rate = rdma_ah_get_static_rate(src);
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dst->is_global = rdma_ah_get_ah_flags(src) &
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IB_AH_GRH ? 1 : 0;
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if (dst->is_global) {
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const struct ib_global_route *grh = rdma_ah_read_grh(src);
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memcpy(dst->grh.dgid, grh->dgid.raw, sizeof(grh->dgid));
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dst->grh.flow_label = grh->flow_label;
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dst->grh.sgid_index = grh->sgid_index;
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dst->grh.hop_limit = grh->hop_limit;
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dst->grh.traffic_class = grh->traffic_class;
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}
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dst->port_num = rdma_ah_get_port_num(src);
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dst->reserved = 0;
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}
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EXPORT_SYMBOL(ib_copy_ah_attr_to_user);
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void ib_copy_qp_attr_to_user(struct ib_device *device,
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struct ib_uverbs_qp_attr *dst,
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struct ib_qp_attr *src)
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{
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dst->qp_state = src->qp_state;
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dst->cur_qp_state = src->cur_qp_state;
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dst->path_mtu = src->path_mtu;
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dst->path_mig_state = src->path_mig_state;
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dst->qkey = src->qkey;
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dst->rq_psn = src->rq_psn;
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dst->sq_psn = src->sq_psn;
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dst->dest_qp_num = src->dest_qp_num;
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dst->qp_access_flags = src->qp_access_flags;
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dst->max_send_wr = src->cap.max_send_wr;
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dst->max_recv_wr = src->cap.max_recv_wr;
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dst->max_send_sge = src->cap.max_send_sge;
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dst->max_recv_sge = src->cap.max_recv_sge;
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dst->max_inline_data = src->cap.max_inline_data;
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ib_copy_ah_attr_to_user(device, &dst->ah_attr, &src->ah_attr);
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ib_copy_ah_attr_to_user(device, &dst->alt_ah_attr, &src->alt_ah_attr);
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dst->pkey_index = src->pkey_index;
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dst->alt_pkey_index = src->alt_pkey_index;
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dst->en_sqd_async_notify = src->en_sqd_async_notify;
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dst->sq_draining = src->sq_draining;
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dst->max_rd_atomic = src->max_rd_atomic;
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dst->max_dest_rd_atomic = src->max_dest_rd_atomic;
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dst->min_rnr_timer = src->min_rnr_timer;
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dst->port_num = src->port_num;
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dst->timeout = src->timeout;
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dst->retry_cnt = src->retry_cnt;
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dst->rnr_retry = src->rnr_retry;
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dst->alt_port_num = src->alt_port_num;
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dst->alt_timeout = src->alt_timeout;
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memset(dst->reserved, 0, sizeof(dst->reserved));
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}
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EXPORT_SYMBOL(ib_copy_qp_attr_to_user);
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static void __ib_copy_path_rec_to_user(struct ib_user_path_rec *dst,
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struct sa_path_rec *src)
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{
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memcpy(dst->dgid, src->dgid.raw, sizeof(src->dgid));
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memcpy(dst->sgid, src->sgid.raw, sizeof(src->sgid));
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dst->dlid = htons(ntohl(sa_path_get_dlid(src)));
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dst->slid = htons(ntohl(sa_path_get_slid(src)));
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dst->raw_traffic = sa_path_get_raw_traffic(src);
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dst->flow_label = src->flow_label;
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dst->hop_limit = src->hop_limit;
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dst->traffic_class = src->traffic_class;
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dst->reversible = src->reversible;
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dst->numb_path = src->numb_path;
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dst->pkey = src->pkey;
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dst->sl = src->sl;
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dst->mtu_selector = src->mtu_selector;
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dst->mtu = src->mtu;
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dst->rate_selector = src->rate_selector;
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dst->rate = src->rate;
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dst->packet_life_time = src->packet_life_time;
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dst->preference = src->preference;
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dst->packet_life_time_selector = src->packet_life_time_selector;
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}
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void ib_copy_path_rec_to_user(struct ib_user_path_rec *dst,
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struct sa_path_rec *src)
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{
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struct sa_path_rec rec;
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if (src->rec_type == SA_PATH_REC_TYPE_OPA) {
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sa_convert_path_opa_to_ib(&rec, src);
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__ib_copy_path_rec_to_user(dst, &rec);
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return;
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}
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__ib_copy_path_rec_to_user(dst, src);
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}
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EXPORT_SYMBOL(ib_copy_path_rec_to_user);
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void ib_copy_path_rec_from_user(struct sa_path_rec *dst,
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struct ib_user_path_rec *src)
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{
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u32 slid, dlid;
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memset(dst, 0, sizeof(*dst));
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if ((ib_is_opa_gid((union ib_gid *)src->sgid)) ||
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(ib_is_opa_gid((union ib_gid *)src->dgid))) {
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dst->rec_type = SA_PATH_REC_TYPE_OPA;
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slid = opa_get_lid_from_gid((union ib_gid *)src->sgid);
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dlid = opa_get_lid_from_gid((union ib_gid *)src->dgid);
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} else {
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dst->rec_type = SA_PATH_REC_TYPE_IB;
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slid = ntohs(src->slid);
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dlid = ntohs(src->dlid);
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}
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memcpy(dst->dgid.raw, src->dgid, sizeof dst->dgid);
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memcpy(dst->sgid.raw, src->sgid, sizeof dst->sgid);
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sa_path_set_dlid(dst, dlid);
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sa_path_set_slid(dst, slid);
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sa_path_set_raw_traffic(dst, src->raw_traffic);
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dst->flow_label = src->flow_label;
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dst->hop_limit = src->hop_limit;
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dst->traffic_class = src->traffic_class;
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dst->reversible = src->reversible;
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dst->numb_path = src->numb_path;
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dst->pkey = src->pkey;
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dst->sl = src->sl;
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dst->mtu_selector = src->mtu_selector;
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dst->mtu = src->mtu;
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dst->rate_selector = src->rate_selector;
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dst->rate = src->rate;
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dst->packet_life_time = src->packet_life_time;
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dst->preference = src->preference;
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dst->packet_life_time_selector = src->packet_life_time_selector;
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/* TODO: No need to set this */
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sa_path_set_dmac_zero(dst);
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}
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EXPORT_SYMBOL(ib_copy_path_rec_from_user);
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