/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
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/* Copyright (c) 2019 Mellanox Technologies. */
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#include "ecpf.h"
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bool mlx5_read_embedded_cpu(struct mlx5_core_dev *dev)
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{
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return (ioread32be(&dev->iseg->initializing) >> MLX5_ECPU_BIT_NUM) & 1;
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}
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static int mlx5_peer_pf_init(struct mlx5_core_dev *dev)
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{
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u32 in[MLX5_ST_SZ_DW(enable_hca_in)] = {};
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int err;
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MLX5_SET(enable_hca_in, in, opcode, MLX5_CMD_OP_ENABLE_HCA);
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err = mlx5_cmd_exec_in(dev, enable_hca, in);
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if (err)
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mlx5_core_err(dev, "Failed to enable peer PF HCA err(%d)\n",
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err);
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return err;
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}
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static void mlx5_peer_pf_cleanup(struct mlx5_core_dev *dev)
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{
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u32 in[MLX5_ST_SZ_DW(disable_hca_in)] = {};
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int err;
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MLX5_SET(disable_hca_in, in, opcode, MLX5_CMD_OP_DISABLE_HCA);
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err = mlx5_cmd_exec_in(dev, disable_hca, in);
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if (err) {
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mlx5_core_err(dev, "Failed to disable peer PF HCA err(%d)\n",
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err);
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return;
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}
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err = mlx5_wait_for_pages(dev, &dev->priv.peer_pf_pages);
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if (err)
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mlx5_core_warn(dev, "Timeout reclaiming peer PF pages err(%d)\n",
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err);
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}
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int mlx5_ec_init(struct mlx5_core_dev *dev)
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{
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if (!mlx5_core_is_ecpf(dev))
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return 0;
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/* ECPF shall enable HCA for peer PF in the same way a PF
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* does this for its VFs.
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*/
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return mlx5_peer_pf_init(dev);
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}
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void mlx5_ec_cleanup(struct mlx5_core_dev *dev)
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{
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if (!mlx5_core_is_ecpf(dev))
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return;
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mlx5_peer_pf_cleanup(dev);
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}
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