i217 appears to receive spurious jumbo frame and then
stops receiving completely. reducing the mtu to 2k as
a work arround for now.
[i82580] "i82580", 9728, F75|F79phy,
[i82583] "i82583", 1514, 0,
[i210] "i210", 9728, F75|Fnofct|Fert,
[i82580] "i82580", 9728, F75|F79phy,
[i82583] "i82583", 1514, 0,
[i210] "i210", 9728, F75|Fnofct|Fert,
-[i217] "i217", 9018, Fload|Fnofct|Fert|Fbadcsum,
+[i217] "i217", 2048, Fload|Fert|Fnofct|Fbadcsum, /* 9018, but unstable above 2k */
[i218] "i218", 9018, Fload|Fert|F79phy|Fnofct|Fbadcsum,
[i219] "i219", 9018, Fload|Fert|F79phy|Fnofct|Fbadcsum,
[i350] "i350", 9728, F75|F79phy|Fnofct,
[i218] "i218", 9018, Fload|Fert|F79phy|Fnofct|Fbadcsum,
[i219] "i219", 9018, Fload|Fert|F79phy|Fnofct|Fbadcsum,
[i350] "i350", 9728, F75|F79phy|Fnofct,