r285947: broken AESNI support? No aesni0 on Intel XEON E5-1650-v3 on Fujitsu Celsius M740

Running a workstation with CURRENT (FreeBSD 11.0-CURRENT #5 r285947: Tue Jul 28
13:39:03 CEST 2015 amd64) equipted with an Intel XEON E5-1650 v3, see the
extraction from recent "dmesg" below.

I double checked the UEFI settings (the box is a Fujitsu Celsius M740 with most
recent firmware 1.8.0) and I didn't find anything indicating that AES-NI has
been deactivated.

I checked the data sheet at Intel, the CPU should support AES-NI.

I also filed a PR: Bug 201960 

I'd like to know whether this is by intention, by bug (feature mask wrong?) or
by a faulty firmware? Any hints?


Thanks in advance,

Oliver

[...]
FreeBSD clang version 3.6.1 (tags/RELEASE_361/final 237755) 20150525
VT: running with driver "efifb".
CPU: Intel(R) Xeon(R) CPU E5-1650 v3 _at_ 3.50GHz (3491.98-MHz K8-class CPU)
  Origin="GenuineIntel"  Id=0x306f2  Family=0x6  Model=0x3f  Stepping=2
  Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0x7dfefbff<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,SDBG,FMA,CX16,xTPR,PDCM,PCID,DCA,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,TSCDLT,XSAVE,OSXSAVE,AVX,F16C,RDRAND>
  AMD Features=0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM>
  AMD Features2=0x21<LAHF,ABM>
  Structured Extended
Features=0x37ab<FSGSBASE,TSCADJ,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,PQM,NFPUSG>
XSAVE Features=0x1<XSAVEOPT> VT-x: (disabled in BIOS)
PAT,HLT,MTF,PAUSE,EPT,UG,VPID,VID,PostIntr TSC: P-state invariant, performance
statistics real memory  = 34359738368 (32768 MB)
avail memory = 33136336896 (31601 MB)
Event timer "LAPIC" quality 600
ACPI APIC Table: <FUJ    D3348-A1>
FreeBSD/SMP: Multiprocessor System Detected: 12 CPUs
FreeBSD/SMP: 1 package(s) x 6 core(s) x 2 SMT threads
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  1
 cpu2 (AP): APIC ID:  2
 cpu3 (AP): APIC ID:  3
 cpu4 (AP): APIC ID:  4
 cpu5 (AP): APIC ID:  5
 cpu6 (AP): APIC ID:  6
 cpu7 (AP): APIC ID:  7
 cpu8 (AP): APIC ID:  8
 cpu9 (AP): APIC ID:  9
 cpu10 (AP): APIC ID: 10
 cpu11 (AP): APIC ID: 11
random: unblocking device.
ioapic0 <Version 2.0> irqs 0-23 on motherboard
ioapic1 <Version 2.0> irqs 24-47 on motherboard
random: entropy device external interface
kbd0 at kbdmux0
random: registering fast source Intel Secure Key RNG
random: fast provider: "Intel Secure Key RNG"
cryptosoft0: <software crypto> on motherboard
aesni0: No AESNI support.
[...]