/*
* Copyright (c) 2001-2020 Mellanox Technologies, Ltd. 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
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#if defined(DEFINED_DIRECT_VERBS) && (DEFINED_DIRECT_VERBS == 3)
#include "vma/ib/mlx5/ib_mlx5.h"
int vma_ib_mlx5dv_init_obj(struct mlx5dv_obj *obj, uint64_t type)
{
int ret = 0;
ret = mlx5dv_init_obj(obj, type);
return ret;
}
int vma_ib_mlx5_req_notify_cq(vma_ib_mlx5_cq_t *mlx5_cq, int solicited)
{
uint64_t doorbell;
uint32_t sn;
uint32_t ci;
uint32_t cmd;
sn = mlx5_cq->cq_sn & 3;
ci = mlx5_cq->cq_ci & 0xffffff;
cmd = solicited ? MLX5_CQ_DB_REQ_NOT_SOL : MLX5_CQ_DB_REQ_NOT;
doorbell = sn << 28 | cmd | ci;
doorbell <<= 32;
doorbell |= mlx5_cq->cq_num;
mlx5_cq->dbrec[VMA_IB_MLX5_CQ_ARM_DB] = htonl(sn << 28 | cmd | ci);
/*
* Make sure that the doorbell record in host memory is
* written before ringing the doorbell via PCI WC MMIO.
*/
wmb();
*(uint64_t *)((uint8_t *)mlx5_cq->uar + MLX5_CQ_DOORBELL) = htonll(doorbell);
wc_wmb();
return 0;
}
void vma_ib_mlx5_get_cq_event(vma_ib_mlx5_cq_t *mlx5_cq, int count)
{
mlx5_cq->cq_sn += count;
}
#endif /* (DEFINED_DIRECT_VERBS == 3) */