/*
* Copyright (c) 2005 Intel Corporation. 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 <linux/export.h>
#include <rdma/ib_marshall.h>
#define OPA_DEFAULT_GID_PREFIX cpu_to_be64(0xfe80000000000000ULL)
static int rdma_ah_conv_opa_to_ib(struct ib_device *dev,
struct rdma_ah_attr *ib,
struct rdma_ah_attr *opa)
{
struct ib_port_attr port_attr;
int ret = 0;
/* Do structure copy and the over-write fields */
*ib = *opa;
ib->type = RDMA_AH_ATTR_TYPE_IB;
rdma_ah_set_grh(ib, NULL, 0, 0, 1, 0);
if (ib_query_port(dev, opa->port_num, &port_attr)) {
/* Set to default subnet to indicate error */
rdma_ah_set_subnet_prefix(ib, OPA_DEFAULT_GID_PREFIX);
ret = -EINVAL;
} else {
rdma_ah_set_subnet_prefix(ib,
cpu_to_be64(port_attr.subnet_prefix));
}
rdma_ah_set_interface_id(ib, OPA_MAKE_ID(rdma_ah_get_dlid(opa)));
return ret;
}
void ib_copy_ah_attr_to_user(struct ib_device *device,
struct ib_uverbs_ah_attr *dst,
struct rdma_ah_attr *ah_attr)
{
struct rdma_ah_attr *src = ah_attr;
struct rdma_ah_attr conv_ah;
memset(&dst->grh.reserved, 0, sizeof(dst->grh.reserved));
if ((ah_attr->type == RDMA_AH_ATTR_TYPE_OPA) &&
(rdma_ah_get_dlid(ah_attr) >=
be16_to_cpu(IB_MULTICAST_LID_BASE)) &&
(!rdma_ah_conv_opa_to_ib(device, &conv_ah, ah_attr)))
src = &conv_ah;
dst->dlid = rdma_ah_get_dlid(src);
dst->sl = rdma_ah_get_sl(src);
dst->src_path_bits = rdma_ah_get_path_bits(src);
dst->static_rate = rdma_ah_get_static_rate(src);
dst->is_global = rdma_ah_get_ah_flags(src) &
IB_AH_GRH ? 1 : 0;
if (dst->is_global) {
const struct ib_global_route *grh = rdma_ah_read_grh(src);
memcpy(dst->grh.dgid, grh->dgid.raw, sizeof(grh->dgid));
dst->grh.flow_label = grh->flow_label;
dst->grh.sgid_index = grh->sgid_index;
dst->grh.hop_limit = grh->hop_limit;
dst->grh.traffic_class = grh->traffic_class;
}
dst->port_num = rdma_ah_get_port_num(src);
dst->reserved = 0;
}
EXPORT_SYMBOL(ib_copy_ah_attr_to_user);
void ib_copy_qp_attr_to_user(struct ib_device *device,
struct ib_uverbs_qp_attr *dst,
struct ib_qp_attr *src)
{
dst->qp_state = src->qp_state;
dst->cur_qp_state = src->cur_qp_state;
dst->path_mtu = src->path_mtu;
dst->path_mig_state = src->path_mig_state;
dst->qkey = src->qkey;
dst->rq_psn = src->rq_psn;
dst->sq_psn = src->sq_psn;
dst->dest_qp_num = src->dest_qp_num;
dst->qp_access_flags = src->qp_access_flags;
dst->max_send_wr = src->cap.max_send_wr;
dst->max_recv_wr = src->cap.max_recv_wr;
dst->max_send_sge = src->cap.max_send_sge;
dst->max_recv_sge = src->cap.max_recv_sge;
dst->max_inline_data = src->cap.max_inline_data;
ib_copy_ah_attr_to_user(device, &dst->ah_attr, &src->ah_attr);
ib_copy_ah_attr_to_user(device, &dst->alt_ah_attr, &src->alt_ah_attr);
dst->pkey_index = src->pkey_index;
dst->alt_pkey_index = src->alt_pkey_index;
dst->en_sqd_async_notify = src->en_sqd_async_notify;
dst->sq_draining = src->sq_draining;
dst->max_rd_atomic = src->max_rd_atomic;
dst->max_dest_rd_atomic = src->max_dest_rd_atomic;
dst->min_rnr_timer = src->min_rnr_timer;
dst->port_num = src->port_num;
dst->timeout = src->timeout;
dst->retry_cnt = src->retry_cnt;
dst->rnr_retry = src->rnr_retry;
dst->alt_port_num = src->alt_port_num;
dst->alt_timeout = src->alt_timeout;
memset(dst->reserved, 0, sizeof(dst->reserved));
}
EXPORT_SYMBOL(ib_copy_qp_attr_to_user);
static void __ib_copy_path_rec_to_user(struct ib_user_path_rec *dst,
struct sa_path_rec *src)
{
memcpy(dst->dgid, src->dgid.raw, sizeof(src->dgid));
memcpy(dst->sgid, src->sgid.raw, sizeof(src->sgid));
dst->dlid = htons(ntohl(sa_path_get_dlid(src)));
dst->slid = htons(ntohl(sa_path_get_slid(src)));
dst->raw_traffic = sa_path_get_raw_traffic(src);
dst->flow_label = src->flow_label;
dst->hop_limit = src->hop_limit;
dst->traffic_class = src->traffic_class;
dst->reversible = src->reversible;
dst->numb_path = src->numb_path;
dst->pkey = src->pkey;
dst->sl = src->sl;
dst->mtu_selector = src->mtu_selector;
dst->mtu = src->mtu;
dst->rate_selector = src->rate_selector;
dst->rate = src->rate;
dst->packet_life_time = src->packet_life_time;
dst->preference = src->preference;
dst->packet_life_time_selector = src->packet_life_time_selector;
}
void ib_copy_path_rec_to_user(struct ib_user_path_rec *dst,
struct sa_path_rec *src)
{
struct sa_path_rec rec;
if (src->rec_type == SA_PATH_REC_TYPE_OPA) {
sa_convert_path_opa_to_ib(&rec, src);
__ib_copy_path_rec_to_user(dst, &rec);
return;
}
__ib_copy_path_rec_to_user(dst, src);
}
EXPORT_SYMBOL(ib_copy_path_rec_to_user);
void ib_copy_path_rec_from_user(struct sa_path_rec *dst,
struct ib_user_path_rec *src)
{
__be32 slid, dlid;
memset(dst, 0, sizeof(*dst));
if ((ib_is_opa_gid((union ib_gid *)src->sgid)) ||
(ib_is_opa_gid((union ib_gid *)src->dgid))) {
dst->rec_type = SA_PATH_REC_TYPE_OPA;
slid = htonl(opa_get_lid_from_gid((union ib_gid *)src->sgid));
dlid = htonl(opa_get_lid_from_gid((union ib_gid *)src->dgid));
} else {
dst->rec_type = SA_PATH_REC_TYPE_IB;
slid = htonl(ntohs(src->slid));
dlid = htonl(ntohs(src->dlid));
}
memcpy(dst->dgid.raw, src->dgid, sizeof dst->dgid);
memcpy(dst->sgid.raw, src->sgid, sizeof dst->sgid);
sa_path_set_dlid(dst, dlid);
sa_path_set_slid(dst, slid);
sa_path_set_raw_traffic(dst, src->raw_traffic);
dst->flow_label = src->flow_label;
dst->hop_limit = src->hop_limit;
dst->traffic_class = src->traffic_class;
dst->reversible = src->reversible;
dst->numb_path = src->numb_path;
dst->pkey = src->pkey;
dst->sl = src->sl;
dst->mtu_selector = src->mtu_selector;
dst->mtu = src->mtu;
dst->rate_selector = src->rate_selector;
dst->rate = src->rate;
dst->packet_life_time = src->packet_life_time;
dst->preference = src->preference;
dst->packet_life_time_selector = src->packet_life_time_selector;
/* TODO: No need to set this */
sa_path_set_dmac_zero(dst);
sa_path_set_ndev(dst, NULL);
sa_path_set_ifindex(dst, 0);
}
EXPORT_SYMBOL(ib_copy_path_rec_from_user);
