[dpdk-dev] [PATCH v1] ixgbe_pmd: forbid tx_rs_thresh above 1 for all NICs but 82598

Matthew Hall mhall at mhcomputing.net
Fri Sep 11 19:58:58 CEST 2015


On Fri, Sep 11, 2015 at 05:42:48PM +0000, Ananyev, Konstantin wrote:
> As I remember, with freebsd stack when TSO is on it was not unusual to see chains of ~30 segments. 
> That's over port with 'normal' mtu (1.5K).
> Konstantin

This makes things quite tricky, because the TSO logic itself would need to 
handle the segment generation versus the limit, as the app would not really be 
able to force TSO to change its behavior, right?

Matthew.


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