Merge branch 'nfp-fix-disabling-TC-offloads-in-flower-max-TSO-segs-and-module-version'

Jakub Kicinski says:

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nfp: fix disabling TC offloads in flower, max TSO segs and module version

This set corrects the way nfp deals with the NETIF_F_HW_TC flag.
It has slipped the review that flower offload does not currently
refuse disabling this flag when filter offload is active.

nfp's flower offload does not actually keep track of how many filters
for each port are offloaded.  The accounting of the number of filters
is added to the nfp core structures, and BPF moved to use these
structures as well.

If users are allowed to disable TC offloads while filters are active,
not only is it incorrect behaviour, but actually the NFP will never
be told to remove the flows, leading to use-after-free when stats
arrive.

Fourth patch makes sure we declare the max number of TSO segments.
FW should drop longer packets cleanly (otherwise this would be a
security problem for untrusted VFs) but dropping longer TSO frames
is not nice and driver should prevent them from being generated.

Last small addition populates MODULE_VERSION with kernel version.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

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