Some fxp ethernet cards support hardware tcp checksums.  I see some
mention of checksums in the driver, but it doesn't seem to be
implemented.  How hard would it be to get this added?


http://www.intel.com/design/network/products/lan/controllers/82559.htm

broadway# dmesg | grep fxp
fxp0 at pci0 dev 10 function 0: i82559 Ethernet, rev 8
fxp0: interrupting at irq 12
fxp0: Ethernet address 00:d0:b7:47:96:78
inphy0 at fxp0 phy 1: i82555 10/100 media interface, rev. 4
fxp0: Microcode loaded: int delay: 1000 usec, max bundle: 6
broadway# ifconfig fxp0 tcp4csum
ifconfig: SIOCSIFCAP: Invalid argument
broadway# uname -a
NetBSD broadway.elfie.org 1.6_BETA5 NetBSD 1.6_BETA5 (BROADWAY) #0: Thu
Aug  8 12:25:08 EDT 2002
franklin@deathmitten:/usr/src/16b/usr/src/sys/arch/i386/compile/BROADWAY
i386


Thanks,
jf
-- 
John Franklin
franklin@elfie.org
ICBM: 35°43'56"N 78°53'27"W