netdev - Re: [PATCH net-next 0/5] tcp: defer shinfo->gso

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Message-ID: <1434067060.27504.69.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Thu, 11 Jun 2015 16:57:40 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	edumazet@...gle.com, netdev@...r.kernel.org, ncardwell@...gle.com,
	ycheng@...gle.com, edumazet@...il.com
Subject: Re: [PATCH net-next 0/5] tcp: defer shinfo->gso_size|type settings

On Thu, 2015-06-11 at 16:45 -0700, David Miller wrote:

> Series applied, however long term I worry that using a u16 will not
> work with TSO'd ipv6 jumbograms.

Well, this would be very long term, as we currently limit GSO/TSO
packets to less than 64KB anyway (tcp_xmit_size_goal())

new_size_goal = sk->sk_gso_max_size - 1 - MAX_TCP_HEADER;

Thanks


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