C++ (Cpp) mlx5_mkey_to_idx Examples

Example #1

File: mr.c Project: Cai900205/test

int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr)
{
	struct mlx5_mr_table *table = &dev->priv.mr_table;
	struct mlx5_destroy_mkey_mbox_in in;
	struct mlx5_destroy_mkey_mbox_out out;
	struct mlx5_core_mr *deleted_mr;
	unsigned long flags;
	int err;

	memset(&in, 0, sizeof(in));
	memset(&out, 0, sizeof(out));

	spin_lock_irqsave(&table->lock, flags);
	deleted_mr = radix_tree_delete(&table->tree, mlx5_mkey_to_idx(mr->key));
	spin_unlock_irqrestore(&table->lock, flags);
	if (!deleted_mr) {
		mlx5_core_warn(dev, "could not find mkey 0x%x in radix tree\n", mr->key);
		return -ENOENT;
	}

	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;
}

Example #2

File: mr.c Project: Cai900205/test

int mlx5_core_create_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr,
			  struct mlx5_create_mkey_mbox_in *in, int inlen,
			  mlx5_cmd_cbk_t callback, void *context,
			  struct mlx5_create_mkey_mbox_out *out)
{
	struct mlx5_mr_table *table = &dev->priv.mr_table;
	struct mlx5_create_mkey_mbox_out lout;
	unsigned long flags;
	int err;
	u8 key;

	memset(&lout, 0, sizeof(lout));
	spin_lock_irq(&dev->priv.mkey_lock);
	key = dev->priv.mkey_key++;
	spin_unlock_irq(&dev->priv.mkey_lock);
	in->seg.qpn_mkey7_0 |= cpu_to_be32(key);
	in->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_CREATE_MKEY);
	if (callback) {
		err = mlx5_cmd_exec_cb(dev, in, inlen, out, sizeof(*out),
				       callback, context);
		return err;
	} else {
		err = mlx5_cmd_exec(dev, in, inlen, &lout, sizeof(lout));
	}

	if (err) {
		mlx5_core_dbg(dev, "cmd exec faile %d\n", err);
		return err;
	}

	if (lout.hdr.status) {
		mlx5_core_dbg(dev, "status %d\n", lout.hdr.status);
		return mlx5_cmd_status_to_err(&lout.hdr);
	}

	mr->iova = be64_to_cpu(in->seg.start_addr);
	mr->size = be64_to_cpu(in->seg.len);
	mr->key = mlx5_idx_to_mkey(be32_to_cpu(lout.mkey) & 0xffffff) | key;
	mr->pd = be32_to_cpu(in->seg.flags_pd) & 0xffffff;

	mlx5_core_dbg(dev, "out 0x%x, key 0x%x, mkey 0x%x\n",
		      be32_to_cpu(lout.mkey), key, mr->key);

	/* connect to MR tree */
	spin_lock_irqsave(&table->lock, flags);
	err = radix_tree_insert(&table->tree, mlx5_mkey_to_idx(mr->key), mr);
	spin_unlock_irqrestore(&table->lock, flags);
	if (err) {
		mlx5_core_warn(dev, "failed radix tree insert of mr 0x%x, %d\n",
			       mr->key, err);
		mlx5_core_destroy_mkey(dev, mr);
	}

	return err;
}

Example #3

File: mr.c Project: antiguru/ofed-compat-rdma

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_query_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;
}

Example #4

File: mr.c Project: Astralix/mainline-dss11

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;
}