Subject: Re: [PATCH v2] net: tso: add support for IPv6

From: Toshiaki Makita <[email-masked]>
Date: Mon, 26 Oct 2015 13:03:11 +0900

On 2015/10/26 5:02, Emmanuel Grumbach wrote:
> Adding IPv6 for the TSO helper API is trivial:
> * Don't play with the id (which doesn't exist in IPv6)
> * Correctly update the payload_len (don't include the
>   length of the IP header itself)
...
>  	memcpy(hdr, skb->data, hdr_len);
> -	iph = (struct iphdr *)(hdr + mac_hdr_len);
> -	iph->id = htons(tso->ip_id);
> -	iph->tot_len = htons(size + hdr_len - mac_hdr_len);
> +	if (skb->protocol == htons(ETH_P_IP)) {

I guess this should be vlan_get_protocol(skb).

> +		struct iphdr *iph = (void *)(hdr + mac_hdr_len);
> +
> +		iph->id = htons(tso->ip_id);
> +		iph->tot_len = htons(size + hdr_len - mac_hdr_len);
> +		tso->ip_id++;
> +	} else if (skb->protocol == htons(ETH_P_IPV6)) {

Likewise.

Toshiaki Makita

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