[dpdk-dev] [PATCH v2] net/hns3: support Tx push quick doorbell to improve perf

[Stephen Hemminger]

On Tue, 15 Jun 2021 09:34:29 +0800
"Min Hu (Connor)" <humin29 at huawei.com> wrote:

> +void
> +hns3_tx_push_init(struct rte_eth_dev *dev)
> +{
> +	struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
> +	volatile uint32_t *reg;
> +	uint32_t val;
> +
> +	if (!hns3_dev_tx_push_supported(hw))
> +		return;
> +
> +	reg = (volatile uint32_t *)hns3_tx_push_get_queue_tail_reg(dev, 0);

Better to use proper barrier function than using volatile.