[dpdk-dev] [PATCH 35/38] net/dpaa: add support for packet type parsing

[Ferruh Yigit]

On 6/16/2017 6:41 AM, Shreyansh Jain wrote:
> Signed-off-by: Hemant Agrawal <hemant.agrawal at nxp.com>
> Signed-off-by: Shreyansh Jain <shreyansh.jain at nxp.com>

<...>

> +static const uint32_t *
> +dpaa_supported_ptypes_get(struct rte_eth_dev *dev)
> +{
> +	static const uint32_t ptypes[] = {
> +		/*todo -= add more types */
> +		RTE_PTYPE_L2_ETHER,
> +		RTE_PTYPE_L3_IPV4,
> +		RTE_PTYPE_L3_IPV4_EXT,
> +		RTE_PTYPE_L3_IPV6,
> +		RTE_PTYPE_L3_IPV6_EXT,
> +		RTE_PTYPE_L4_TCP,
> +		RTE_PTYPE_L4_UDP,
> +		RTE_PTYPE_L4_SCTP
> +	};
> +
> +	PMD_INIT_FUNC_TRACE();
> +
> +	if (dev->rx_pkt_burst == dpaa_eth_queue_rx)

Isn't this only rx function exists? Is this check required?

> +		return ptypes;
> +	return NULL;
> +}
>  
>  static int dpaa_eth_dev_start(struct rte_eth_dev *dev)
>  {
> @@ -159,6 +180,10 @@ static void dpaa_eth_dev_info(struct rte_eth_dev *dev,
>  	dev_info->max_vfs = 0;
>  	dev_info->max_vmdq_pools = ETH_16_POOLS;
>  	dev_info->flow_type_rss_offloads = DPAA_RSS_OFFLOAD_ALL;
> +	dev_info->rx_offload_capa =
> +		(DEV_RX_OFFLOAD_IPV4_CKSUM |
> +		DEV_RX_OFFLOAD_UDP_CKSUM  |
> +		DEV_RX_OFFLOAD_TCP_CKSUM);

I guess this patch also enable L3/L4 Rx checksum offload, can you please
update commit log.

And should ol_flags set with one of the PKT_RX_IP_CKSUM_BAD,
PKT_RX_IP_CKSUM_GOOD, PKT_RX_IP_CKSUM_NONE? Also with L4 versions of these?

<...>

> +
> +	m->tx_offload = annot->parse.ip_off[0];
> +	m->tx_offload |= (annot->parse.l4_off - annot->parse.ip_off[0])
> +					<< DPAA_PKT_L3_LEN_SHIFT;

This is a received mbuf right? Is it required to set tx_offload flag?

> +
> +	/* Set the hash values */
> +	m->hash.rss = (uint32_t)(rte_be_to_cpu_64(annot->hash));> +	m->ol_flags = PKT_RX_RSS_HASH;
> +
> +	/* Check if Vlan is present */
> +	if (prs & DPAA_PARSE_VLAN_MASK)
> +		m->ol_flags |= PKT_RX_VLAN_PKT;

I guess PKT_RX_VLAN_STRIPPED is the preferred flag now.

<...>