replace sks jumbo allocator with MCLGETI. the system provides jumbos in

the right shape now, we dont have to do it by hand all over the place
any more.

rework the rxr ring management to use if_rxring while here.

largely based on if_sk.c r1.152 and if_skvar.h r1.4 by kettenis.
tested by me on:

skc0 at pci3 dev 11 function 0 "Schneider & Koch SK-98xx" rev 0x12, GEnesis (0x0): apic 3 int 5
sk0 at skc0 port A: address 00:00:5a:99:8a:ec
xmphy0 at sk0 phy 0: XMAC II Gigabit PHY, rev. 2

and this from ian mcwilliam

skc0 at pci0 dev 9 function 0 "D-Link DGE-530T B1" rev 0x11, Yukon Lite (0x9): apic 2 int 17
sk0 at skc0 port A: address 00:17:9a:ba:b5:39
eephy0 at sk0 phy 0: 88E1011 Gigabit PHY, rev. 5

tested by brad@ too

0 files changed, 0 insertions, 0 deletions