I'd like to axe some drivers

[Don Lewis]

Catching up ...

> The CardBus ones (dc, fxp, rl, re and xl) are less no-brainerish. Older 64-bit
> laptops have only CardBus, and some have these built-in. Since these types
> of systems are rare, and rarely NFS boot, having them as modules is likely
> fine.

The re interface is very common on recent consumer-grade AMD
motherboards and it would not be good to break network boot and network
install on them.

FreeBSD 10.1-STABLE #4 r275233: Fri Nov 28 23:50:53 PST 2014
    dl at hoover:/usr/obj/usr/src/sys/GENERIC amd64
FreeBSD clang version 3.4.1 (tags/RELEASE_34/dot1-final 208032) 20140512
CPU: AMD FX(tm)-4100 Quad-Core Processor             (3624.26-MHz K8-class CPU)
  Origin = "AuthenticAMD"  Id = 0x600f12  Family = 0x15  Model = 0x1  Stepping =
 2
  Features=0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,C
MOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT>
  Features2=0x1e98220b<SSE3,PCLMULQDQ,MON,SSSE3,CX16,SSE4.1,SSE4.2,POPCNT,AESNI,
XSAVE,OSXSAVE,AVX>
  AMD Features=0x2e500800<SYSCALL,NX,MMX+,FFXSR,Page1GB,RDTSCP,LM>
  AMD Features2=0x1c9bfff<LAHF,CMP,SVM,ExtAPIC,CR8,ABM,SSE4A,MAS,Prefetch,OSVW,I
BS,XOP,SKINIT,WDT,LWP,FMA4,NodeId,Topology,PCXC,PNXC>
  TSC: P-state invariant, performance statistics
real memory  = 17179869184 (16384 MB)
avail memory = 16573792256 (15806 MB)
[SNIP]
re0: <RealTek 8168/8111 B/C/CP/D/DP/E/F/G PCIe Gigabit Ethernet> port 0x8e00-0x8
eff mem 0xfd4ff000-0xfd4fffff,0xfd4f8000-0xfd4fbfff irq 17 at device 0.0 on pci7
re0: Using 1 MSI-X message
re0: Chip rev. 0x2c800000
re0: MAC rev. 0x00100000
miibus0: <MII bus> on re0
rgephy0: <RTL8169S/8110S/8211 1000BASE-T media interface> PHY 1 on miibus0
rgephy0:  none, 10baseT, 10baseT-FDX, 10baseT-FDX-flow, 100baseTX, 100baseTX-FDX
, 100baseTX-FDX-flow, 1000baseT, 1000baseT-master, 1000baseT-FDX, 1000baseT-FDX-
master, 1000baseT-FDX-flow, 1000baseT-FDX-flow-master, auto, auto-flow
re0: Using defaults for TSO: 65518/35/2048

I've got a pile of fxp PCI cards around here, though only one is in
currently in use in an i386 machine (and I do PXE boot that interface).
The same machine also has a de card in it.  I really need to swap that
one out for something more modern because it doesn't handle
autonegotiation (well?) as I recall.

I've got a pile of ISA hardware around here, but none of it is currently
in use.   All the motherboards have PCI slots, so I'd use PCI NICs with
them, but I think I have some ISA NICs, probably some variety of 3com.