The Hirsute Hippo has reached End of Life, so this bug will not be fixed
for that release.
** Changed in: linux (Ubuntu Hirsute)
Status: Triaged => Won't Fix
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https://bugs.launchpad.net/bugs/1939937
Title:
ath10k: "add target IRAM recovery feature support" breaks QCA9984
Firmware load capability
Status in linux package in Ubuntu:
Triaged
Status in linux-oem-5.13 package in Ubuntu:
Invalid
Status in linux source package in Focal:
Invalid
Status in linux-oem-5.13 source package in Focal:
Fix Released
Status in linux source package in Hirsute:
Won't Fix
Status in linux-oem-5.13 source package in Hirsute:
Invalid
Status in linux source package in Impish:
Triaged
Status in linux-oem-5.13 source package in Impish:
Invalid
Bug description:
[SRU Justification]
[Impact]
Commit 9af7c32ceca8 ("ath10k: add target IRAM recovery feature support")
in v5.11 fails firmware loading without IRAM recovery feature. However,
the latest firmware from
https://github.com/kvalo/ath10k-firmware/tree/master/QCA9984/hw1.0/3.9.0.2
doesn't support IRAM, it follows new official ath10k firmwares may no
longer be loadable for kernel newer than v5.11.
[Fix]
A fix is proposed to
http://lists.infradead.org/pipermail/ath10k/2021-July/012729.html that
turns the lack/failure of IRAM recovery support a warning instead.
[Test Case]
With this fix, kernel gives errors about the IRAM supportness, but
proceeds to remaining procedures as before.
ath10k_pci 0000:04:00.0: No hardware memory
ath10k_pci 0000:04:00.0: failed to copy target iram contents: -12
ath10k_pci 0000:07:00.0: No hardware memory
ath10k_pci 0000:07:00.0: failed to copy target iram contents: -12
[Where problems could occur]
So the IRAM recovery feature may or may not be supported in the
officially released firmware, and people meet problems when using
non-IRAM supported firmware may still have a fallback to use older, but
IRAM recovery supported ones.
========== original bug report ==========
Hello, I use Ubuntu 20.04.2 LTS.
The kernel was recently updated to 5.11
5.11.0-25-generic #27~20.04.1-Ubuntu SMP Tue Jul 13 17:41:23 UTC 2021
x86_64 x86_64 x86_64 GNU/Linux
Since then the ath10k_core driver for my QCA9984 card is broken and
only loads ~3 firmware versions from the 3.9.0.2 branch
https://github.com/kvalo/ath10k-firmware/tree/master/QCA9984/hw1.0/3.9.0.2
The firmware versions 70 / 86 / 91 are functional (but these firmware
versions are already 2 years old)
Responsible for this is the defective patch "ath10k: add target IRAM
recovery feature support"
https://git.launchpad.net/~ubuntu-
kernel/ubuntu/+source/linux/+git/focal/commit/?h=hwe-5.11&id=9af7c32ceca85da27867dd863697d2aafc80a3f8
If I understand the patch correctly then the driver tries to load
firmware with the feature "iram recovery" into the memory of the host
(for recvovery purposes).
If this fails, the firmware is discarded and the network controller
remains unusable.
Of course, this is not a desirable behavior for optional firmware
features.
dmesg:
[ 3.074952] ath: loading out-of-tree module taints kernel.
[ 3.090522] ath: module verification failed: signature and/or required key
missing - tainting kernel
[ 3.110879] ath10k_pci 0000:03:00.0: pci irq msi oper_irq_mode 2 irq_mode
0 reset_mode 0
[ 3.178741] ath10k_pci 0000:04:00.0: pci irq msi oper_irq_mode 2 irq_mode
0 reset_mode 0
[ 3.229944] ath10k_pci 0000:03:00.0: qca9984/qca9994 hw1.0 target
0x01000000 chip_id 0x00000000 sub 168c:cafe
[ 3.229948] ath10k_pci 0000:03:00.0: kconfig debug 0 debugfs 1 tracing 1
dfs 0 testmode 0
[ 3.230274] ath10k_pci 0000:03:00.0: firmware ver 10.4-3.9.0.2-00149 api 5
features
no-p2p,mfp,peer-flow-ctrl,btcoex-param,allows-mesh-bcast,no-ps,peer-fixed-rate,iram-recovery
crc32 5f41acd7
[ 3.291329] ath10k_pci 0000:04:00.0: qca9984/qca9994 hw1.0 target
0x01000000 chip_id 0x00000000 sub 168c:cafe
[ 3.291333] ath10k_pci 0000:04:00.0: kconfig debug 0 debugfs 1 tracing 1
dfs 0 testmode 0
[ 3.291678] ath10k_pci 0000:04:00.0: firmware ver 10.4-3.9.0.2-00149 api 5
features
no-p2p,mfp,peer-flow-ctrl,btcoex-param,allows-mesh-bcast,no-ps,peer-fixed-rate,iram-recovery
crc32 5f41acd7
[ 4.463156] ath10k_pci 0000:03:00.0: board_file api 2 bmi_id 0:1 crc32
85498734
[ 4.520649] ath10k_pci 0000:04:00.0: board_file api 2 bmi_id 0:2 crc32
85498734
[ 7.047910] ath10k_pci 0000:03:00.0: failed to copy target iram contents:
-12
[ 7.103260] ath10k_pci 0000:03:00.0: could not init core (-12)
[ 7.103267] ath10k_pci 0000:03:00.0: could not probe fw (-12)
[ 7.108570] ath10k_pci 0000:04:00.0: failed to copy target iram contents:
-12
[ 7.163247] ath10k_pci 0000:04:00.0: could not init core (-12)
[ 7.163268] ath10k_pci 0000:04:00.0: could not probe fw (-12)
In the ath10k mailing list I found a second patch which makes it
possible to load the latest firmware on the card again.
https://www.mail-archive.com/ath10k@lists.infradead.org/msg13655.html
I have tested the patch and it works.
dmesg:
[18245.610112] ath10k_pci 0000:03:00.0: pci irq msi oper_irq_mode 2 irq_mode
0 reset_mode 0
[18245.674800] ath10k_pci 0000:04:00.0: pci irq msi oper_irq_mode 2 irq_mode
0 reset_mode 0
[18245.731606] ath10k_pci 0000:03:00.0: qca9984/qca9994 hw1.0 target
0x01000000 chip_id 0x00000000 sub 168c:cafe
[18245.731620] ath10k_pci 0000:03:00.0: kconfig debug 0 debugfs 1 tracing 1
dfs 0 testmode 0
[18245.733172] ath10k_pci 0000:03:00.0: firmware ver 10.4-3.9.0.2-00152 api 5
features
no-p2p,mfp,peer-flow-ctrl,btcoex-param,allows-mesh-bcast,no-ps,peer-fixed-rate,iram-recovery
crc32 723f9771
[18245.790380] ath10k_pci 0000:04:00.0: qca9984/qca9994 hw1.0 target
0x01000000 chip_id 0x00000000 sub 168c:cafe
[18245.790383] ath10k_pci 0000:04:00.0: kconfig debug 0 debugfs 1 tracing 1
dfs 0 testmode 0
[18245.790703] ath10k_pci 0000:04:00.0: firmware ver 10.4-3.9.0.2-00152 api 5
features
no-p2p,mfp,peer-flow-ctrl,btcoex-param,allows-mesh-bcast,no-ps,peer-fixed-rate,iram-recovery
crc32 723f9771
[18246.963760] ath10k_pci 0000:03:00.0: board_file api 2 bmi_id 0:1 crc32
85498734
[18247.019699] ath10k_pci 0000:04:00.0: board_file api 2 bmi_id 0:2 crc32
85498734
[18249.514054] ath10k_pci 0000:03:00.0: No hardware memory
[18249.514057] ath10k_pci 0000:03:00.0: failed to copy target iram contents:
-12
[18249.570423] ath10k_pci 0000:04:00.0: No hardware memory
[18249.570426] ath10k_pci 0000:04:00.0: failed to copy target iram contents:
-12
[18249.620637] ath10k_pci 0000:03:00.0: htt-ver 2.2 wmi-op 6 htt-op 4 cal otp
max-sta 512 raw 0 hwcrypto 1
[18249.678035] ath10k_pci 0000:04:00.0: htt-ver 2.2 wmi-op 6 htt-op 4 cal otp
max-sta 512 raw 0 hwcrypto 1
Please include this patch in Ubuntu so that we can load current
firmware versions on our QCA9984 cards again.
additional reference:
https://lists.infradead.org/pipermail/ath10k/2021-May/012626.html
best regards
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