iwlwifi (5100 AGN) AP mode (experimental?)

Hi,
I read[1] iwlwifi should have experimental support for AP mode.

Unfortunately ap mode isn't listed:

laptop ~ # iw list | grep -i ap
Capabilities: 0x1072
Capabilities: 0x1072
* start_ap
* set_noack_map
* AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80
0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70
0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
HT Capability overrides:

Do I need a special firmware/kernel version? I'm using 3.11.0 and linux-firmware-20130728.

Thanks,
Niccolò

[1]http://wireless.kernel.org/en/users/Drivers/iwlwifi

http://www.linuxsystems.it