[dpdk-dev] [PATCH v12 0/6] add Tx preparation

Yuanhan Liu yuanhan.liu at linux.intel.com
Wed Dec 7 09:11:44 CET 2016


On Tue, Dec 06, 2016 at 03:53:42PM +0000, Ferruh Yigit wrote:
> > Please, we need a comment for each driver saying
> > "it is OK, we do not need any checksum preparation for TSO"
> > or
> > "yes we have to implement tx_prepare or TSO will not work in this mode"
> >

Sorry for late. For virtio, I think it's not a must. The checksum stuff
has been handled inside the Tx function. However, we may could move it
to tx_prepare, which would actually recover the performance lost
introduced while enabling TSO for the non-TSO case.

	--yliu


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