ASUS PCE-AC51

PCI Express 1x karta, 2 odnímatelné R-SMA antény, v balení je záslepka pro vysoký i nízký ATX profil. 802.11b/g/a/n/ac, 2,4 a 5 GHz pásmo. Webová stránka výrobku.

Výstup iw list se schopnostmi hardwaru a ovladače:

Wiphy phy0
	wiphy index: 0
	max # scan SSIDs: 4
	max scan IEs length: 2243 bytes
	max # sched scan SSIDs: 0
	max # match sets: 0
	Retry short limit: 7
	Retry long limit: 4
	Coverage class: 0 (up to 0m)
	Device supports RSN-IBSS.
	Supported Ciphers:
		* WEP40 (00-0f-ac:1)
		* WEP104 (00-0f-ac:5)
		* TKIP (00-0f-ac:2)
		* CCMP-128 (00-0f-ac:4)
		* CCMP-256 (00-0f-ac:10)
		* GCMP-128 (00-0f-ac:8)
		* GCMP-256 (00-0f-ac:9)
		* CMAC (00-0f-ac:6)
		* CMAC-256 (00-0f-ac:13)
		* GMAC-128 (00-0f-ac:11)
		* GMAC-256 (00-0f-ac:12)
	Available Antennas: TX 0 RX 0
	Supported interface modes:
		 * IBSS
		 * managed
		 * AP
		 * AP/VLAN
		 * monitor
		 * P2P-client
		 * P2P-GO
	Band 1:
		Capabilities: 0x186e
			HT20/HT40
			SM Power Save disabled
			RX HT20 SGI
			RX HT40 SGI
			No RX STBC
			Max AMSDU length: 7935 bytes
			DSSS/CCK HT40
		Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
		Minimum RX AMPDU time spacing: 16 usec (0x07)
		HT Max RX data rate: 300 Mbps
		HT TX/RX MCS rate indexes supported: 0-15, 32
		Bitrates (non-HT):
			* 1.0 Mbps
			* 2.0 Mbps
			* 5.5 Mbps
			* 11.0 Mbps
			* 6.0 Mbps
			* 9.0 Mbps
			* 12.0 Mbps
			* 18.0 Mbps
			* 24.0 Mbps
			* 36.0 Mbps
			* 48.0 Mbps
			* 54.0 Mbps
		Frequencies:
			* 2412 MHz [1] (20.0 dBm)
			* 2417 MHz [2] (20.0 dBm)
			* 2422 MHz [3] (20.0 dBm)
			* 2427 MHz [4] (20.0 dBm)
			* 2432 MHz [5] (20.0 dBm)
			* 2437 MHz [6] (20.0 dBm)
			* 2442 MHz [7] (20.0 dBm)
			* 2447 MHz [8] (20.0 dBm)
			* 2452 MHz [9] (20.0 dBm)
			* 2457 MHz [10] (20.0 dBm)
			* 2462 MHz [11] (20.0 dBm)
			* 2467 MHz [12] (20.0 dBm)
			* 2472 MHz [13] (20.0 dBm)
			* 2484 MHz [14] (disabled)
	Band 2:
		Capabilities: 0x186e
			HT20/HT40
			SM Power Save disabled
			RX HT20 SGI
			RX HT40 SGI
			No RX STBC
			Max AMSDU length: 7935 bytes
			DSSS/CCK HT40
		Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
		Minimum RX AMPDU time spacing: 16 usec (0x07)
		HT Max RX data rate: 300 Mbps
		HT TX/RX MCS rate indexes supported: 0-15, 32
		VHT Capabilities (0x33c019a2):
			Max MPDU length: 11454
			Supported Channel Width: neither 160 nor 80+80
			short GI (80 MHz)
			TX STBC
			SU Beamformer
			SU Beamformee
			+HTC-VHT
			RX antenna pattern consistency
			TX antenna pattern consistency
		VHT RX MCS set:
			1 streams: MCS 0-9
			2 streams: MCS 0-9
			3 streams: not supported
			4 streams: not supported
			5 streams: not supported
			6 streams: not supported
			7 streams: not supported
			8 streams: not supported
		VHT RX highest supported: 867 Mbps
		VHT TX MCS set:
			1 streams: MCS 0-9
			2 streams: MCS 0-9
			3 streams: not supported
			4 streams: not supported
			5 streams: not supported
			6 streams: not supported
			7 streams: not supported
			8 streams: not supported
		VHT TX highest supported: 867 Mbps
		Bitrates (non-HT):
			* 6.0 Mbps
			* 9.0 Mbps
			* 12.0 Mbps
			* 18.0 Mbps
			* 24.0 Mbps
			* 36.0 Mbps
			* 48.0 Mbps
			* 54.0 Mbps
		Frequencies:
			* 5180 MHz [36] (23.0 dBm)
			* 5200 MHz [40] (23.0 dBm)
			* 5220 MHz [44] (23.0 dBm)
			* 5240 MHz [48] (23.0 dBm)
			* 5260 MHz [52] (20.0 dBm) (no IR, radar detection)
			* 5280 MHz [56] (20.0 dBm) (no IR, radar detection)
			* 5300 MHz [60] (20.0 dBm) (no IR, radar detection)
			* 5320 MHz [64] (20.0 dBm) (no IR, radar detection)
			* 5500 MHz [100] (26.0 dBm) (no IR, radar detection)
			* 5520 MHz [104] (26.0 dBm) (no IR, radar detection)
			* 5540 MHz [108] (26.0 dBm) (no IR, radar detection)
			* 5560 MHz [112] (26.0 dBm) (no IR, radar detection)
			* 5580 MHz [116] (26.0 dBm) (no IR, radar detection)
			* 5600 MHz [120] (26.0 dBm) (no IR, radar detection)
			* 5620 MHz [124] (26.0 dBm) (no IR, radar detection)
			* 5640 MHz [128] (26.0 dBm) (no IR, radar detection)
			* 5660 MHz [132] (26.0 dBm) (no IR, radar detection)
			* 5680 MHz [136] (26.0 dBm) (no IR, radar detection)
			* 5700 MHz [140] (26.0 dBm) (no IR, radar detection)
			* 5745 MHz [149] (13.0 dBm)
			* 5765 MHz [153] (13.0 dBm)
			* 5785 MHz [157] (13.0 dBm)
			* 5805 MHz [161] (13.0 dBm)
			* 5825 MHz [165] (13.0 dBm)
	Supported commands:
		 * new_interface
		 * set_interface
		 * new_key
		 * start_ap
		 * new_station
		 * set_bss
		 * authenticate
		 * associate
		 * deauthenticate
		 * disassociate
		 * join_ibss
		 * remain_on_channel
		 * set_tx_bitrate_mask
		 * frame
		 * frame_wait_cancel
		 * set_wiphy_netns
		 * set_channel
		 * probe_client
		 * set_noack_map
		 * register_beacons
		 * start_p2p_device
		 * set_mcast_rate
		 * connect
		 * disconnect
		 * set_qos_map
		 * set_multicast_to_unicast
	WoWLAN support:
		 * wake up on magic packet
		 * wake up on pattern match, up to 16 patterns of 13-128 bytes,
		   maximum packet offset 0 bytes
	software interface modes (can always be added):
		 * AP/VLAN
		 * monitor
	interface combinations are not supported
	HT Capability overrides:
		 * MCS: ff ff ff ff ff ff ff ff ff ff
		 * maximum A-MSDU length
		 * supported channel width
		 * short GI for 40 MHz
		 * max A-MPDU length exponent
		 * min MPDU start spacing
	Device supports TX status socket option.
	Device supports HT-IBSS.
	Device supports SAE with AUTHENTICATE command
	Device supports low priority scan.
	Device supports scan flush.
	Device supports AP scan.
	Device supports per-vif TX power setting
	Driver supports full state transitions for AP/GO clients
	Driver supports a userspace MPM
	Device supports configuring vdev MAC-addr on create.
	max # scan plans: 1
	max scan plan interval: -1
	max scan plan iterations: 0
	Supported TX frame types:
		 * IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * 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
		 * mesh point: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
		 * P2P-device: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
	Supported RX frame types:
		 * IBSS: 0x40 0xb0 0xc0 0xd0
		 * managed: 0x40 0xb0 0xd0
		 * AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
		 * AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
		 * mesh point: 0xb0 0xc0 0xd0
		 * P2P-client: 0x40 0xd0
		 * P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
		 * P2P-device: 0x40 0xd0
	Supported extended features:
		* [ RRM ]: RRM
		* [ FILS_STA ]: STA FILS (Fast Initial Link Setup)
		* [ CONTROL_PORT_OVER_NL80211 ]: control port over nl80211
		* [ SCAN_RANDOM_SN ]: use random sequence numbers in scans
		* [ SCAN_MIN_PREQ_CONTENT ]: use probe request with only rate IEs in scans
		* [ CONTROL_PORT_NO_PREAUTH ]: disable pre-auth over nl80211 control port support
		* [ DEL_IBSS_STA ]: deletion of IBSS station support
		* [ SCAN_FREQ_KHZ ]: scan on kHz frequency support
		* [ CONTROL_PORT_OVER_NL80211_TX_STATUS ]: tx status for nl80211 control port support

# lspci -s 2:0.0 -vnn
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8812AE 802.11ac PCIe Wireless Network Adapter [10ec:8812] (rev 01)
        Subsystem: ASUSTeK Computer Inc. RTL8812AE 802.11ac PCIe Wireless Network Adapter [1043:86dd]
        Flags: bus master, fast devsel, latency 0, IRQ 41, IOMMU group 7
        I/O ports at e000 [size=256]
        Memory at fea00000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [40] Power Management version 3
        Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [70] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [140] Device Serial Number 00-12-88-fe-ff-4c-e0-00
        Capabilities: [150] Latency Tolerance Reporting
        Capabilities: [158] L1 PM Substates
        Kernel driver in use: rtl8821ae
        Kernel modules: rtl8821ae

Je třeba linuxový (5.17.1) modul rtl8821ae (konfigurační volba CONFIG_RTL8821AE) a firmware z balíku linux-firmware (rtlwifi/rtl8812aefw_wowlan.bin, rtlwifi/rtl8812aefw.bin). Po zavedení ovladač ohlásí:

rtl8821ae 0000:02:00.0: enabling device (0000 -> 0003)
rtl8821ae: Using firmware rtlwifi/rtl8812aefw.bin
rtl8821ae: Using firmware rtlwifi/rtl8812aefw_wowlan.bin
ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
rtlwifi: rtlwifi: wireless switch is on

V režimu 802.11ac v 5GHz pásmu se mi podařilo pomocí hostapd-2.10 dostat 20, 40 a 80 MHz široké kanály mezi 36. a 48. kanálem. Širší (160 MHz) kanál, třebaže výrobce slibuje 433 Mb/s, mi karta odmítla. Horší ale bylo, že přenosové rychlosti naopak s šířkou kanálu klesaly, i když stanice byla hned vedle AP. Ale třeba jen neumím nastavit hostapd nebo mám vadnou stanici. Další problém je, že pokus o Automatic Channel Selection končil porušením ochrany IOMMU domény (rtl8821ae 0000:02:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0008 address=0xbe96b040 flags=0x0000]), takže jsem musel kanál a šířku nastavovat ručně. Těžko říci, jestli to je chyba firmwaru nebo ovladače. V jiné desce porušení ochrany hlášeno nebylo, ale automatika stejně nefungovala. (Ta ale podle všeho nefunguje v Linuxu vůbec.) Pokud není dostupný firmware pro rtl8812aefw.bin, ovladač zkouší načíst rtl8821aefw.bin. Rozdíl jsem nezkoušel.