mirror of https://github.com/F-Stack/f-stack.git
103 lines
2.5 KiB
C
103 lines
2.5 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright 2019 Mellanox Technologies, Ltd
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*/
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#include <rte_malloc.h>
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#include <rte_errno.h>
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#include "mlx5_vdpa_utils.h"
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#include "mlx5_vdpa.h"
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int
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mlx5_vdpa_logging_enable(struct mlx5_vdpa_priv *priv, int enable)
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{
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struct mlx5_devx_virtq_attr attr = {
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.type = MLX5_VIRTQ_MODIFY_TYPE_DIRTY_BITMAP_DUMP_ENABLE,
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.dirty_bitmap_dump_enable = enable,
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};
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int i;
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for (i = 0; i < priv->nr_virtqs; ++i) {
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attr.queue_index = i;
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if (!priv->virtqs[i].virtq) {
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DRV_LOG(DEBUG, "virtq %d is invalid for dirty bitmap "
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"enabling.", i);
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} else if (mlx5_devx_cmd_modify_virtq(priv->virtqs[i].virtq,
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&attr)) {
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DRV_LOG(ERR, "Failed to modify virtq %d for dirty "
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"bitmap enabling.", i);
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return -1;
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}
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}
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return 0;
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}
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int
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mlx5_vdpa_dirty_bitmap_set(struct mlx5_vdpa_priv *priv, uint64_t log_base,
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uint64_t log_size)
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{
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struct mlx5_devx_virtq_attr attr = {
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.type = MLX5_VIRTQ_MODIFY_TYPE_DIRTY_BITMAP_PARAMS,
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.dirty_bitmap_addr = log_base,
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.dirty_bitmap_size = log_size,
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};
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int i;
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int ret = mlx5_os_wrapped_mkey_create(priv->ctx, priv->pd,
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priv->pdn,
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(void *)(uintptr_t)log_base,
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log_size, &priv->lm_mr);
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if (ret) {
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DRV_LOG(ERR, "Failed to allocate wrapped MR for lm.");
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return -1;
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}
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attr.dirty_bitmap_mkey = priv->lm_mr.lkey;
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for (i = 0; i < priv->nr_virtqs; ++i) {
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attr.queue_index = i;
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if (!priv->virtqs[i].virtq) {
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DRV_LOG(DEBUG, "virtq %d is invalid for LM.", i);
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} else if (mlx5_devx_cmd_modify_virtq(priv->virtqs[i].virtq,
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&attr)) {
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DRV_LOG(ERR, "Failed to modify virtq %d for LM.", i);
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goto err;
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}
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}
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return 0;
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err:
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mlx5_os_wrapped_mkey_destroy(&priv->lm_mr);
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return -1;
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}
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#define MLX5_VDPA_USED_RING_LEN(size) \
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((size) * sizeof(struct vring_used_elem) + sizeof(uint16_t) * 3)
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int
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mlx5_vdpa_lm_log(struct mlx5_vdpa_priv *priv)
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{
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uint64_t features;
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int ret = rte_vhost_get_negotiated_features(priv->vid, &features);
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int i;
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if (ret) {
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DRV_LOG(ERR, "Failed to get negotiated features.");
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return -1;
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}
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if (!RTE_VHOST_NEED_LOG(features))
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return 0;
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for (i = 0; i < priv->nr_virtqs; ++i) {
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if (!priv->virtqs[i].virtq) {
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DRV_LOG(DEBUG, "virtq %d is invalid for LM log.", i);
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} else {
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ret = mlx5_vdpa_virtq_stop(priv, i);
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if (ret) {
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DRV_LOG(ERR, "Failed to stop virtq %d for LM "
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"log.", i);
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return -1;
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}
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}
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rte_vhost_log_used_vring(priv->vid, i, 0,
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MLX5_VDPA_USED_RING_LEN(priv->virtqs[i].vq_size));
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}
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return 0;
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}
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