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/*
* Copyright (c) 2013, Mellanox Technologies inc. 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_mr *mr,
struct mlx5_create_mkey_mbox_in *in, int inlen)
{
struct mlx5_create_mkey_mbox_out out;
int err;
u8 key;
memset(&out, 0, sizeof(out));
spin_lock(&dev->priv.mkey_lock);
key = dev->priv.mkey_key++;
spin_unlock(&dev->priv.mkey_lock);
in->seg.qpn_mkey7_0 |= cpu_to_be32(key);
in->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_CREATE_MKEY);
err = mlx5_cmd_exec(dev, in, inlen, &out, sizeof(out));
if (err) {
mlx5_core_dbg(dev, "cmd exec faile %d\n", err);
return err;
}
if (out.hdr.status) {
mlx5_core_dbg(dev, "status %d\n", out.hdr.status);
return mlx5_cmd_status_to_err(&out.hdr);
}
mr->key = mlx5_idx_to_mkey(be32_to_cpu(out.mkey) & 0xffffff) | key;
mlx5_core_dbg(dev, "out 0x%x, key 0x%x, mkey 0x%x\n", be32_to_cpu(out.mkey), key, mr->key);
return err;
}
EXPORT_SYMBOL(mlx5_core_create_mkey);
int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr)
{
struct mlx5_destroy_mkey_mbox_in in;
struct mlx5_destroy_mkey_mbox_out out;
int err;
memset(&in, 0, sizeof(in));
memset(&out, 0, sizeof(out));
in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_DESTROY_MKEY);
in.mkey = cpu_to_be32(mlx5_mkey_to_idx(mr->key));
err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out));
if (err)
return err;
if (out.hdr.status)
return mlx5_cmd_status_to_err(&out.hdr);
return err;
}
EXPORT_SYMBOL(mlx5_core_destroy_mkey);
int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr,
struct mlx5_query_mkey_mbox_out *out, int outlen)
{
struct mlx5_destroy_mkey_mbox_in in;
int err;
memset(&in, 0, sizeof(in));
memset(out, 0, outlen);
in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_QUERY_MKEY);
in.mkey = cpu_to_be32(mlx5_mkey_to_idx(mr->key));
err = mlx5_cmd_exec(dev, &in, sizeof(in), out, outlen);
if (err)
return err;
if (out->hdr.status)
return mlx5_cmd_status_to_err(&out->hdr);
return err;
}
EXPORT_SYMBOL(mlx5_core_query_mkey);
int mlx5_core_dump_fill_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr,
u32 *mkey)
{
struct mlx5_query_special_ctxs_mbox_in in;
struct mlx5_query_special_ctxs_mbox_out out;
int err;
memset(&in, 0, sizeof(in));
memset(&out, 0, sizeof(out));
in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS);
err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out));
if (err)
return err;
if (out.hdr.status)
return mlx5_cmd_status_to_err(&out.hdr);
*mkey = be32_to_cpu(out.dump_fill_mkey);
return err;
}
EXPORT_SYMBOL(mlx5_core_dump_fill_mkey);
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