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New: Backporting ath11k QCN9074 no network interface

Bug 217925 [email protected] 1 participant 2 messages Sep 19, 2023

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https://bugzilla.kernel.org/show_bug.cgi?id=217925

Bug ID: 217925
Summary: Backporting ath11k QCN9074 no network interface
Product: Backports project
Version: unspecified
Hardware: All
OS: Linux
Status: NEW
Severity: normal
Priority: P3
Component: Backports
Assignee: [email protected]
Reporter: [email protected]
Regression: No

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[Bug 217925] Backporting ath11k QCN9074 support to kernel 5.10 - no network interface

https://bugzilla.kernel.org/show_bug.cgi?id=217925

Lakshmanakumar ([email protected]) changed:

What |Removed |Added
----------------------------------------------------------------------------

           Keywords|                            |trivial
            Summary|Backporting ath11k QCN9074  |Backporting ath11k QCN9074
                   |no network interface        |support to kernel 5.10 - no
                   |                            |network interface

--- Comment #1 from Lakshmanakumar ([email protected]) --- I'm trying to port the ath11k driver from kernel 5.15 to kernel 5.10 for supporting the QCN9074 modules. I have also copied the firmwares from
https://github.com/kvalo/ath11k-firmware/tree/master/QCN9074/hw1.0
I could see the below logs after loading the ath11k_pci driver. But it does not proceed after the below state. Therefore the wireless network interface fails loading.

[  520.582093] cfg80211: Loading compiled-in X.509 certificates for regulatory
database
[  520.594227] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[  520.630560] ath11k_pci 0000:03:00.0: runtime IRQ mapping not provided by
arch
[  520.637930] ath11k_pci 0000:03:00.0: BAR 0: assigned [mem
0xdfa00000-0xdfbfffff 64bit]
[  520.646225] ath11k_pci 0000:03:00.0: qcn9074 hw1.0
[  520.654325] NET: Registered protocol family 42
[  520.714305] mhi 0000:03:00.0: Requested to power ON
[  520.719416] mhi 0000:03:00.0: Power on setup success

PCI list shows the interface as

root@localhost:/# lspci -v -s 0000:03:00.0
03:00.0 Network controller: Qualcomm Device 1104 (rev 01)
        Subsystem: Qualcomm Device 1104
        Flags: bus master, fast devsel, latency 0, IRQ 77
        Memory at dfa00000 (64-bit, non-prefetchable) [size=2M]
        Capabilities: [40] Power Management version 3
        Capabilities: [50] MSI: Enable+ Count=16/32 Maskable+ 64bit-
        Capabilities: [70] Express Endpoint, MSI 00
        Kernel driver in use: ath11k_pci
        Kernel modules: ath11k_pci
root@localhost:/# tree /sys/bus/pci/devices/0000\:03\:00.0/
0000:03:00.0/             driver/                   rescan
0000:03:00.0_IPCR/        driver_override           reset
0000:03:00.0_LOOPBACK/
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