Bug 215868
| Summary: | iwlwifi: AX210: ODFMA not used, cannot be configured via netlink | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | pkalytta (philipp+Kernel) |
| Component: | network-wireless-intel | Assignee: | Default virtual assignee for network-wireless-intel (drivers_network-wireless-intel) |
| Status: | NEW --- | ||
| Severity: | normal | CC: | philipp+Kernel |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| See Also: | https://bugzilla.kernel.org/show_bug.cgi?id=215043 | ||
| Kernel Version: | 5.17 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
Hi, regarding the OFDMA support, the IEEE 802.11ax Standard reqires the following: 802.11ax und Chapter 4.3.15a: "The main PHY features in an HE STA that are not present in VHT STA or HT STA are the following: — Mandatory support for DL and UL OFDMA [...]" Does the AX210 (and others) not fully implement the AX-Standard? We do not see the AX210 react to Trigger Frames from the Access Point that contain User Information fields for subcarrier selection. Best regards, Philipp |
When using the AX210 in a BSS that supports 802.11ax OFDMA (either in 5 GHz or 6 GHz operation), the AX210 does not seem to negotiate OFDMA but rather only OFDM. At least that is what the gross bitrates that iw reports hint to. They show bitrates only possible with OFDM. Trying to force OFDMA usage is not possible ATM? Netlink reports: Error for wireless request "Set Modulation" (8B2F): SET failed on device wlp1s0 ; Operation not supported Used Kernel is 5.17.0-rc8, but can be reproduced in 5.17.1 Used iwlwifi firmware is ty-a0-gf-a0-68.ucode Also, it seems that Monitor-Mode is not possible with the AX210 on 6 GHz channels ATM, as the self-managed regulatory information are not updated when in Monitor-Mode, only when the interface is in Managed-Mode?