[dpdk-dev] [PATCH v2 3/5] virtio/vdev: add embeded device emulation

[Tan, Jianfeng]

Hi Tetsuya,

On 2/8/2016 2:59 PM, Tetsuya Mukawa wrote:
> On 2016/02/05 20:20, Jianfeng Tan wrote:
>> To implement virtio vdev, we need way to interract with vhost backend.
>> And more importantly, needs way to emulate a device into DPDK. So this
>> patch acts as embedded device emulation.
>>
>> Depends on the type of vhost file: vhost-user is used if the given
>> path points to a unix socket; vhost-net is used if the given path
>> points to a char device.
>>
>> Signed-off-by: Huawei Xie <huawei.xie at intel.com>
>> Signed-off-by: Jianfeng Tan <jianfeng.tan at intel.com>
>> ---
>>  
>> +void
>> +virtio_vdev_init(struct rte_eth_dev_data *data, char *path,
>> +		 int nb_rx, int nb_tx, int nb_cq __attribute__ ((unused)),
>> +		 int queue_num, char *mac, char *ifname)
>> +{
>> +	int i, r;
>> +	struct stat s;
>> +	uint32_t tmp[ETHER_ADDR_LEN];
>> +	struct virtio_hw *hw = data->dev_private;
>> +
>> +	hw->vtpci_ops = &vdev_ops;
>> +	hw->io_base  = 0;
>> +	hw->use_msix = 0;
>> +	hw->modern   = 0;
>> +
>> +	hw->data = data;
>> +	hw->path = strdup(path);
>> +	hw->max_rx_queues = nb_rx;
>> +	hw->max_tx_queues = nb_tx;
>> +	hw->queue_num = queue_num;
>> +	hw->mac_specified = 0;
>> +	if (mac) {
>> +		r = sscanf(mac, "%x:%x:%x:%x:%x:%x", &tmp[0],
>> +			   &tmp[1], &tmp[2], &tmp[3], &tmp[4], &tmp[5]);
>> +		if (r == ETHER_ADDR_LEN) {
>> +			for (i = 0; i < ETHER_ADDR_LEN; ++i)
>> +				hw->mac_addr[i] = (uint8_t)tmp[i];
>> +			hw->mac_specified = 1;
>> +		} else
>> +			PMD_DRV_LOG(WARN, "wrong format of mac: %s", mac);
> It seems you cannot use 'WARN' here.

Thanks, I'll change it to ERR.

Thanks,
Jianfeng
>
> Thanks,
> Tetsuya
>