ibmveth: Automatically enable larger rx buffer pools for larger mtu
ibmveth: Automatically enable larger rx buffer pools for larger mtu

Activates larger rx buffer pools when the MTU is changed to a larger
value.  This patch de-activates the large rx buffer pools when the MTU
changes to a smaller value.

Signed-off-by: Santiago Leon <86f027c664650e0500cbb9d175338bd9cd64795b@us.ibm.com>
Signed-off-by: Robert Jennings <3915fb8377205924ccc3120e302501c7a259dd7e@linux.vnet.ibm.com>
Acked-by: Paul Mackerras <19a0ba370c443ba08d20b5061586430ab449ee8c@samba.org>
Signed-off-by: Benjamin Herrenschmidt <a7089bb6e7e92505d88aaff006cbdd60cc9120b6@kernel.crashing.org>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs