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/*
* Copyright (c) 2013-2015, 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 <linux/kernel.h>
#include <linux/module.h>
#include <linux/mlx5/driver.h>
#include <linux/mlx5/cmd.h>
#include "mlx5_core.h"
int mlx5_core_create_mkey(struct mlx5_core_dev *dev,
struct mlx5_core_mkey *mkey,
u32 *in, int inlen)
{
u32 lout[MLX5_ST_SZ_DW(create_mkey_out)] = {0};
u32 mkey_index;
void *mkc;
int err;
u8 key;
MLX5_SET(create_mkey_in, in, opcode, MLX5_CMD_OP_CREATE_MKEY);
err = mlx5_cmd_exec(dev, in, inlen, lout, sizeof(lout));
if (err)
return err;
mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry);
mkey_index = MLX5_GET(create_mkey_out, lout, mkey_index);
mkey->iova = MLX5_GET64(mkc, mkc, start_addr);
mkey->size = MLX5_GET64(mkc, mkc, len);
mkey->key |= mlx5_idx_to_mkey(mkey_index);
mkey->pd = MLX5_GET(mkc, mkc, pd);
mlx5_core_dbg(dev, "out 0x%x, key 0x%x, mkey 0x%x\n",
mkey_index, key, mkey->key);
return 0;
}
EXPORT_SYMBOL(mlx5_core_create_mkey);
int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev,
struct mlx5_core_mkey *mkey)
{
u32 out[MLX5_ST_SZ_DW(destroy_mkey_out)] = {0};
u32 in[MLX5_ST_SZ_DW(destroy_mkey_in)] = {0};
MLX5_SET(destroy_mkey_in, in, opcode, MLX5_CMD_OP_DESTROY_MKEY);
MLX5_SET(destroy_mkey_in, in, mkey_index, mlx5_mkey_to_idx(mkey->key));
return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
}
EXPORT_SYMBOL(mlx5_core_destroy_mkey);
int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *mkey,
u32 *out, int outlen)
{
u32 in[MLX5_ST_SZ_DW(query_mkey_in)] = {0};
memset(out, 0, outlen);
MLX5_SET(query_mkey_in, in, opcode, MLX5_CMD_OP_QUERY_MKEY);
MLX5_SET(query_mkey_in, in, mkey_index, mlx5_mkey_to_idx(mkey->key));
return mlx5_cmd_exec(dev, in, sizeof(in), out, outlen);
}
EXPORT_SYMBOL(mlx5_core_query_mkey);
static inline u32 mlx5_get_psv(u32 *out, int psv_index)
{
switch (psv_index) {
case 1: return MLX5_GET(create_psv_out, out, psv1_index);
case 2: return MLX5_GET(create_psv_out, out, psv2_index);
case 3: return MLX5_GET(create_psv_out, out, psv3_index);
default: return MLX5_GET(create_psv_out, out, psv0_index);
}
}
int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn,
int npsvs, u32 *sig_index)
{
u32 out[MLX5_ST_SZ_DW(create_psv_out)] = {0};
u32 in[MLX5_ST_SZ_DW(create_psv_in)] = {0};
int i, err;
if (npsvs > MLX5_MAX_PSVS)
return -EINVAL;
MLX5_SET(create_psv_in, in, opcode, MLX5_CMD_OP_CREATE_PSV);
MLX5_SET(create_psv_in, in, pd, pdn);
MLX5_SET(create_psv_in, in, num_psv, npsvs);
err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
if (err)
return err;
for (i = 0; i < npsvs; i++)
sig_index[i] = mlx5_get_psv(out, i);
return err;
}
EXPORT_SYMBOL(mlx5_core_create_psv);
int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num)
{
u32 out[MLX5_ST_SZ_DW(destroy_psv_out)] = {0};
u32 in[MLX5_ST_SZ_DW(destroy_psv_in)] = {0};
MLX5_SET(destroy_psv_in, in, opcode, MLX5_CMD_OP_DESTROY_PSV);
MLX5_SET(destroy_psv_in, in, psvn, psv_num);
return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
}
EXPORT_SYMBOL(mlx5_core_destroy_psv);
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