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Date: Mon, 23 Apr 2018 11:03:48 +0200
From: Olivier Matz <olivier.matz@6wind.com>
To: Thomas Monjalon <thomas@monjalon.net>
Cc: dev@dpdk.org, xuemingl@mellanox.com, harish.patil@cavium.com
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Subject: Re: [dpdk-dev] [PATCH 2/2] mbuf: improve API doc for tunnel Tx
 offloads
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On Mon, Apr 23, 2018 at 10:53:17AM +0200, Thomas Monjalon wrote:
> 23/04/2018 10:14, Olivier Matz:
> > On Fri, Apr 20, 2018 at 02:13:24AM +0200, Thomas Monjalon wrote:
> > > + * These flags can be used with PKT_TX_TCP_SEG for TSO, or PKT_TX_xxx_CKSUM.
> > > + * The mbuf fields for inner and outer header lengths may be required:
> > 
> > may be -> are
> > 
> > > + * outer_l2_len, outer_l3_len, l2_len, l3_len, l4_len.
> > 
> > and tso_segsz for TSO.
> 
> From a HW point of view, some header lengths may be omitted if they are
> guessed by the HW.
> But you are right, from an API point of view, we should require them,
> no matter what is the underlying hardware.
> 
> So the sentence becomes:
>  * The mbuf fields for inner and outer header lengths are required:
>  * outer_l2_len, outer_l3_len, l2_len, l3_len, l4_len and tso_segsz for TSO.

Sounds good, thanks.