Need support of Qualcomm WCN6856

Mark linux/hirsute as WONTFIX for adding new support to an existing driver is not a strong rationale for SRU.

PPA: https://launchpad.net/~vicamo/+archive/ubuntu/linux-staging starting from version 5.13.0-9010.11+staging.10

No hardware to verify yet, but probably we'll also need this from linux-firmware:

  4adb20b4 QCA: Add Bluetooth firmware for WCN685x

PPA: https://launchpad.net/~vicamo/+archive/ubuntu/linux-firmware-staging starting from version 1.187.16+staging.12

latest ath11k firmware from https://github.com/kvalo/ath11k-firmware/commit/443060f416bc71e3cc9dbd105cbaf86c66906d82 and board file from https://chromium.googlesource.com/chromiumos/third_party/linux-firmware/+/d233ddd89abe06448070471963a58c0a7da81d79

Updated prebuilt kernel in https://launchpad.net/~vicamo/+archive/ubuntu/linux-staging version 5.13.0-9017.21+staging.21 and 5.14.0-9005.5+staging.23. Verified with wcn6855 hw 2.0 [17CB:1003] subsystem [105B:E0B8]. Both version has 290+ Mbps with a 300Mbps bandwidth network.

SRU:
* https://lists.ubuntu.com/archives/kernel-team/2021-October/125018.html (oem-5.14)
* https://lists.ubuntu.com/archives/kernel-team/2021-October/125045.html (oem-5.13)

This bug is awaiting verification that the linux-oem-5.14/5.14.0-1006.6 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

This causes an AX201 iwlwifi firmware regression filed in https://bugs.launchpad.net/somerville/+bug/1948949.

patches got reverted from the kernel

This bug was fixed in the package linux-oem-5.13 - 5.13.0-1019.23

---------------
linux-oem-5.13 (5.13.0-1019.23) focal; urgency=medium

  * focal/linux-oem-5.13: 5.13.0-1019.23 -proposed tracker (LP: #1949076)

  * Fail to detect audio output from external monitor (LP: #1948767)
    - ALSA: hda: intel: Allow repeatedly probing on codec configuration errors

  * Intel I225-IT ethernet controller: igc: probe of 0000:02:00.0 failed with
    error -1 (LP: #1945576)
    - igc: Remove _I_PHY_ID checking
    - igc: Remove phy->type checking

  * Fix Screen freeze after resume from suspend with iGPU [1002:6987]
    (LP: #1949050)
    - drm/amdgpu: reenable BACO support for 699F:C7 polaris12 SKU
    - drm/amdgpu: add missing cleanups for Polaris12 UVD/VCE on suspend
    - drm/amdgpu: Fix crash on device remove/driver unload

  * Need support of Qualcomm WCN6856 (LP: #1939528)
    - Revert "UBUNTU: SAUCE: Bluetooth: btusb: Add support using different nvm for
      variant WCN6855 controller"
    - Revert "UBUNTU: SAUCE: cfg80211: save power spectral density(psd) of
      regulatory rule"
    - Revert "UBUNTU: SAUCE: cfg80211: add definition for 6 GHz power spectral
      density(psd)"
    - Revert "UBUNTU: SAUCE: ath11k: set correct NL80211_FEATURE_DYNAMIC_SMPS for
      WCN6855"
    - Revert "mac80211: save transmit power envelope element and power constraint"
    - Revert "mac80211: add parse regulatory info in 6 GHz operation information"
    - Revert "ieee80211: add power type definition for 6 GHz"
    - Revert "mac80211: use ieee802_11_parse_elems() in ieee80211_prep_channel()"
    - Revert "mac80211: always allocate struct ieee802_11_elems"
    - Revert "mac80211: mlme: find auth challenge directly"
    - Revert "mac80211: move CRC into struct ieee802_11_elems"
    - Revert "mac80211: mesh: clean up rx_bcn_presp API"
    - Revert "ath11k: support SMPS configuration for 6 GHz"
    - Revert "ath11k: add 6 GHz params in peer assoc command"
    - Revert "ieee80211: Add new A-MPDU factor macro for HE 6 GHz peer caps"
    - Revert "ath11k: copy cap info of 6G band under WMI_HOST_WLAN_5G_CAP for
      WCN6855"
    - Revert "ath11k: enable 6G channels for WCN6855"
    - Revert "ath11k: re-enable ht_cap/vht_cap for 5G band for WCN6855"
    - Revert "ath11k: fix survey dump collection in 6 GHz"
    - Revert "ath11k: fix packet drops due to incorrect 6 GHz freq value in rx
      status"
    - Revert "ath11k: add channel 2 into 6 GHz channel list"
    - Revert "ath11k: qmi: avoid error messages when dma allocation fails"
    - Revert "mac80211: parse transmit power envelope element"
    - Revert "ieee80211: add definition for transmit power envelope element"
    - Revert "ieee80211: add definition of regulatory info in 6 GHz operation
      information"
    - Revert "mac80211: notify driver on mgd TX completion"
    - Revert "ath11k: don't call ath11k_pci_set_l1ss for WCN6855"
    - Revert "ath11k: add support for WCN6855"
    - Revert "ath11k: add support to get peer id for WCN6855"
    - Revert "ath11k: setup WBM_IDLE_LINK ring once again"
    - Revert "ath11k: setup REO for WCN6855"
    - Revert "ath11k: add dp support for WCN6855"
    - Revert "ath11k:...

This bug was fixed in the package linux-oem-5.14 - 5.14.0-1007.7

---------------
linux-oem-5.14 (5.14.0-1007.7) focal; urgency=medium

  * focal/linux-oem-5.14: 5.14.0-1007.7 -proposed tracker (LP: #1949349)

  * Intel I225-IT ethernet controller: igc: probe of 0000:02:00.0 failed with
    error -1 (LP: #1945576)
    - igc: Remove _I_PHY_ID checking
    - igc: Remove phy->type checking

  * Fix Screen freeze after resume from suspend with iGPU [1002:6987]
    (LP: #1949050)
    - drm/amdgpu: reenable BACO support for 699F:C7 polaris12 SKU
    - drm/amdgpu: add missing cleanups for Polaris12 UVD/VCE on suspend
    - drm/amdgpu: Fix crash on device remove/driver unload

  * Fail to detect audio output from external monitor (LP: #1948767)
    - ALSA: hda: intel: Allow repeatedly probing on codec configuration errors

  * Fix System hangs on black screen when reboot (LP: #1949321)
    - SAUCE: drm/i915: Don't request GMBUS to generate irqs when called while irqs
      are off
    - SAUCE: drm/i915/hdmi: Turn DP++ TMDS output buffers back on in
      encoder->shutdown()

 -- Timo Aaltonen <email address hidden> Mon, 01 Nov 2021 12:38:15 +0200

Status changed to 'Confirmed' because the bug affects multiple users.

The Hirsute Hippo has reached End of Life, so this bug will not be fixed for that release.

Ubuntu 21.10 (Impish Indri) has reached end of life, so this bug will not be fixed for that specific release.

WCN6856 6G support was explicitly turned off in bug 1954938, making the commits porting to jammy meaningless. (And yet all the 6G support should have been in position in oem-5.17)

The "UBUNTU: SAUCE: Bluetooth: btusb: Add support using different nvm for variant WCN6855 controller", which is not related to WiFi 6G, has been committed separately in bug 1955689.

No further work to do in Jammy migration.

Remove linux-firmware from affected packages as there is no change to be submitted for it.

according to an online discussion, this is essentially fixed in jammy already