If a GSO packet has a length above tbf burst limit, the packet
is currently silently dropped.

Current way to handle this is to set the device in non GSO/TSO mode, or
setting high bursts, and its sub optimal.

We can actually segment too big GSO packets, and send individual
segments as tbf parameters allow, allowing for better interoperability.
Signed-off-by: NEric Dumazet <edumazet@google.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: Jiri Pirko <jiri@resnulli.us>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Reviewed-by: NJiri Pirko <jiri@resnulli.us>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>