Merge branch 'hv_netvsc-Fix-default-and-limit-of-recv-buffer'

Stephen Hemminger says:

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hv_netvsc: Fix default and limit of recv buffer

The default for receive buffer descriptors is not correct, it should
match the default receive buffer size and the upper limit of receive
buffer size is too low.  Also, for older versions of Window servers
hosts, different lower limit check is necessary, otherwise the buffer
request will be rejected by the host, resulting vNIC not come up.

This patch set corrects these problems.
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Signed-off-by: David S. Miller <davem@davemloft.net>