nfp: allow multi-stage NSP configuration
NSP commands may be slow to respond, we should try to avoid doing a command-per-item when user requested to change multiple parameters for instance with an ethtool .set_settings() command. Introduce a way of internal NSP code to carry state in NSP structure and add start/finish calls to perform the initialization and kick off of the configuration request, with potentially many parameters being modified in between. nfp_eth_set_mod_enable() will make use of the new code internally, other "set" functions to follow. Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: NSimon Horman <simon.horman@netronome.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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