linux/drivers/infiniband/core/uverbs_marshall.c
Dasaratharaman Chandramouli 4ba66093bd IB/core: Check for global flag when using ah_attr
Read/write grh fields of the ah_attr only if the
ah_flags field has the IB_AH_GRH bit enabled

Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Don Hiatt <don.hiatt@intel.com>
Reviewed-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-05-01 14:32:43 -04:00

152 lines
5.3 KiB
C

/*
* 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>
void ib_copy_ah_attr_to_user(struct ib_uverbs_ah_attr *dst,
struct ib_ah_attr *src)
{
memset(&dst->grh.reserved, 0, sizeof(dst->grh.reserved));
dst->dlid = src->dlid;
dst->sl = src->sl;
dst->src_path_bits = src->src_path_bits;
dst->static_rate = src->static_rate;
dst->is_global = src->ah_flags & IB_AH_GRH ? 1 : 0;
if (dst->is_global) {
memcpy(dst->grh.dgid, src->grh.dgid.raw, sizeof(src->grh.dgid));
dst->grh.flow_label = src->grh.flow_label;
dst->grh.sgid_index = src->grh.sgid_index;
dst->grh.hop_limit = src->grh.hop_limit;
dst->grh.traffic_class = src->grh.traffic_class;
}
dst->port_num = src->port_num;
dst->reserved = 0;
}
EXPORT_SYMBOL(ib_copy_ah_attr_to_user);
void ib_copy_qp_attr_to_user(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(&dst->ah_attr, &src->ah_attr);
ib_copy_ah_attr_to_user(&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);
void ib_copy_path_rec_to_user(struct ib_user_path_rec *dst,
struct ib_sa_path_rec *src)
{
memcpy(dst->dgid, src->dgid.raw, sizeof src->dgid);
memcpy(dst->sgid, src->sgid.raw, sizeof src->sgid);
dst->dlid = src->dlid;
dst->slid = src->slid;
dst->raw_traffic = 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;
}
EXPORT_SYMBOL(ib_copy_path_rec_to_user);
void ib_copy_path_rec_from_user(struct ib_sa_path_rec *dst,
struct ib_user_path_rec *src)
{
memcpy(dst->dgid.raw, src->dgid, sizeof dst->dgid);
memcpy(dst->sgid.raw, src->sgid, sizeof dst->sgid);
dst->dlid = src->dlid;
dst->slid = src->slid;
dst->raw_traffic = 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;
memset(dst->dmac, 0, sizeof(dst->dmac));
dst->net = NULL;
dst->ifindex = 0;
dst->gid_type = IB_GID_TYPE_IB;
}
EXPORT_SYMBOL(ib_copy_path_rec_from_user);