/*
* Copyright (c) 2016, Mellanox Technologies. 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 "en.h"
/* mlx5e global resources should be placed in this file.
* Global resources are common to all the netdevices crated on the same nic.
*/
static int mlx5e_create_mkey(struct mlx5_core_dev *mdev, u32 pdn,
struct mlx5_core_mkey *mkey)
{
struct mlx5_create_mkey_mbox_in *in;
int err;
in = mlx5_vzalloc(sizeof(*in));
if (!in)
return -ENOMEM;
in->seg.flags = MLX5_PERM_LOCAL_WRITE |
MLX5_PERM_LOCAL_READ |
MLX5_ACCESS_MODE_PA;
in->seg.flags_pd = cpu_to_be32(pdn | MLX5_MKEY_LEN64);
in->seg.qpn_mkey7_0 = cpu_to_be32(0xffffff << 8);
err = mlx5_core_create_mkey(mdev, mkey, in, sizeof(*in), NULL, NULL,
NULL);
kvfree(in);
return err;
}
int mlx5e_create_mdev_resources(struct mlx5_core_dev *mdev)
{
struct mlx5e_resources *res = &mdev->mlx5e_res;
int err;
err = mlx5_alloc_map_uar(mdev, &res->cq_uar, false);
if (err) {
mlx5_core_err(mdev, "alloc_map uar failed, %d\n", err);
return err;
}
err = mlx5_core_alloc_pd(mdev, &res->pdn);
if (err) {
mlx5_core_err(mdev, "alloc pd failed, %d\n", err);
goto err_unmap_free_uar;
}
err = mlx5_core_alloc_transport_domain(mdev, &res->td.tdn);
if (err) {
mlx5_core_err(mdev, "alloc td failed, %d\n", err);
goto err_dealloc_pd;
}
err = mlx5e_create_mkey(mdev, res->pdn, &res->mkey);
if (err) {
mlx5_core_err(mdev, "create mkey failed, %d\n", err);
goto err_dealloc_transport_domain;
}
return 0;
err_dealloc_transport_domain:
mlx5_core_dealloc_transport_domain(mdev, res->td.tdn);
err_dealloc_pd:
mlx5_core_dealloc_pd(mdev, res->pdn);
err_unmap_free_uar:
mlx5_unmap_free_uar(mdev, &res->cq_uar);
return err;
}
void mlx5e_destroy_mdev_resources(struct mlx5_core_dev *mdev)
{
struct mlx5e_resources *res = &mdev->mlx5e_res;
mlx5_core_destroy_mkey(mdev, &res->mkey);
mlx5_core_dealloc_transport_domain(mdev, res->td.tdn);
mlx5_core_dealloc_pd(mdev, res->pdn);
mlx5_unmap_free_uar(mdev, &res->cq_uar);
}
