On Fri, Feb 12, 2021 at 3:15 PM Heiner Kallweit <hkall@xxxxxxxxxx> wrote:
>
> On 12.02.2021 13:21, Heiner Kallweit wrote:
> > On 11.02.2021 21:23, Luca Coelho wrote:
> >> On Thu, 2021-02-11 at 17:10 +0100, Heiner Kallweit wrote:
> >>> Today's linux-next has a bunch of issues, at least with my AX210 (0024) card.
> >>>
> >>> First I got a GPF in iwl_request_firmware(), cfg->fw_name_pre was invalid.
> >>> After some digging into it I found that 6f60fb03c8e7 ("iwlwifi: move SnJ
> >>> and So rules to the new tables") removed the entries for some cards.
> >>> Obviously 5febcdef3090 and 9b15596c5006 weren't synced with some parallel
> >>> development.
> >>> After adding the entry for 0024 I now get the following lockdep warning.
> >>> Isn't there any regression testing with lockdep enabled?
> >>> Also warning "api flags index 2 larger than supported by driver" is still
> >>> there, IIRC we talked about this weeks ago.
> >>>
> >>>
> >>> [ 4.561774] iwlwifi 0000:01:00.0: enabling device (0000 -> 0002)
> >>> [ 4.630849] iwlwifi 0000:01:00.0: Direct firmware load for iwlwifi-ty-a0-gf-a0-61.ucode failed with error -2
> >>> [ 4.639817] iwlwifi 0000:01:00.0: api flags index 2 larger than supported by driver
> >>> [ 4.640062] iwlwifi 0000:01:00.0: TLV_FW_FSEQ_VERSION: FSEQ Version: 93.8.73.28
> >>> [ 4.642138] iwlwifi 0000:01:00.0: loaded firmware version 60.84d9abea.0 ty-a0-gf-a0-60.ucode op_mode iwlmvm
> >>> [ 4.760541] iwlwifi 0000:01:00.0: Detected Intel(R) Wi-Fi 6 AX210 160MHz, REV=0x420
> >>> [ 4.942350] irq/131-iwlwifi/2094 just changed the state of lock:
> >>> [ 4.942358] ffffa3fc07f080b0 (&rxq->lock){+.-.}-{2:2}, at: iwl_pcie_rx_handle+0x7c/0x8b0 [iwlwifi]
> >>> [ 4.942504] 1 lock held by irq/131-iwlwifi/2094:
> >>> [ 4.942511] #0: ffffa3fc0855c170 (sync_cmd_lockdep_map){+.+.}-{0:0}, at: iwl_pcie_irq_rx_msix_handler+0x47/0x100 [iwlwifi]
> >>> [ 4.943219] _iwl_pcie_rx_init+0x208/0x6e0 [iwlwifi]
> >>> [ 4.943242] iwl_pcie_gen2_rx_init+0x20/0x30 [iwlwifi]
> >>> [ 4.943264] iwl_trans_pcie_gen2_start_fw+0x1e3/0x350 [iwlwifi]
> >>> [ 4.943289] iwl_mvm_load_ucode_wait_alive+0xfc/0x440 [iwlmvm]
> >>> [ 4.943329] iwl_run_unified_mvm_ucode+0xa5/0x250 [iwlmvm]
> >>> [ 4.943360] iwl_run_init_mvm_ucode+0x292/0x370 [iwlmvm]
> >>> [ 4.943391] iwl_op_mode_mvm_start+0x7f4/0xb60 [iwlmvm]
> >>> [ 4.943424] _iwl_op_mode_start.isra.0+0x42/0x80 [iwlwifi]
> >>> [ 4.943446] iwl_opmode_register+0x70/0xe0 [iwlwifi]
> >>> [ 4.943467] iwl_mvm_init+0x35/0x1000 [iwlmvm]
> >>> [ 4.943588] _iwl_pcie_rx_init+0x140/0x6e0 [iwlwifi]
> >>> [ 4.943612] iwl_pcie_gen2_rx_init+0x20/0x30 [iwlwifi]
> >>> [ 4.943635] iwl_trans_pcie_gen2_start_fw+0x1e3/0x350 [iwlwifi]
> >>> [ 4.943662] iwl_mvm_load_ucode_wait_alive+0xfc/0x440 [iwlmvm]
> >>> [ 4.943695] iwl_run_unified_mvm_ucode+0xa5/0x250 [iwlmvm]
> >>> [ 4.943728] iwl_run_init_mvm_ucode+0x292/0x370 [iwlmvm]
> >>> [ 4.943760] iwl_op_mode_mvm_start+0x7f4/0xb60 [iwlmvm]
> >>> [ 4.943793] _iwl_op_mode_start.isra.0+0x42/0x80 [iwlwifi]
> >>> [ 4.943816] iwl_opmode_register+0x70/0xe0 [iwlwifi]
> >>> [ 4.943838] iwl_mvm_init+0x35/0x1000 [iwlmvm]
> >>> [ 4.943954] iwl_pcie_rx_handle+0x7c/0x8b0 [iwlwifi]
> >>> [ 4.943978] iwl_pcie_napi_poll_msix+0x2a/0x90 [iwlwifi]
> >>> [ 4.944063] iwl_pcie_irq_rx_msix_handler+0xbc/0x100 [iwlwifi]
> >>> [ 4.944147] _iwl_pcie_rx_init+0x140/0x6e0 [iwlwifi]
> >>> [ 4.944170] iwl_pcie_gen2_rx_init+0x20/0x30 [iwlwifi]
> >>> [ 4.944194] iwl_trans_pcie_gen2_start_fw+0x1e3/0x350 [iwlwifi]
> >>> [ 4.944220] iwl_mvm_load_ucode_wait_alive+0xfc/0x440 [iwlmvm]
> >>> [ 4.944255] iwl_run_unified_mvm_ucode+0xa5/0x250 [iwlmvm]
> >>> [ 4.944287] iwl_run_init_mvm_ucode+0x292/0x370 [iwlmvm]
> >>> [ 4.944319] iwl_op_mode_mvm_start+0x7f4/0xb60 [iwlmvm]
> >>> [ 4.944352] _iwl_op_mode_start.isra.0+0x42/0x80 [iwlwifi]
> >>> [ 4.944375] iwl_opmode_register+0x70/0xe0 [iwlwifi]
> >>> [ 4.944397] iwl_mvm_init+0x35/0x1000 [iwlmvm]
> >>> [ 4.944493] ... key at: [<ffffffffc0c2e0c0>] __key.12+0x0/0xffffffffffff0f40 [iwlwifi]
> >>> [ 4.944547] iwl_pcie_rx_handle+0x7c/0x8b0 [iwlwifi]
> >>> [ 4.944569] iwl_pcie_napi_poll_msix+0x2a/0x90 [iwlwifi]
> >>> [ 4.944643] iwl_pcie_irq_rx_msix_handler+0xbc/0x100 [iwlwifi]
> >>> [ 4.944705] CPU: 0 PID: 2094 Comm: irq/131-iwlwifi Not tainted 5.11.0-rc7-next-20210211+ #1
> >>> [ 4.944786] ? iwl_pcie_rx_handle+0x7c/0x8b0 [iwlwifi]
> >>> [ 4.944825] ? iwl_pcie_rx_handle+0x7c/0x8b0 [iwlwifi]
> >>> [ 4.944847] iwl_pcie_rx_handle+0x7c/0x8b0 [iwlwifi]
> >>> [ 4.944878] iwl_pcie_napi_poll_msix+0x2a/0x90 [iwlwifi]
> >>> [ 4.944949] ? iwl_pcie_irq_rx_msix_handler+0xab/0x100 [iwlwifi]
> >>> [ 4.944981] iwl_pcie_irq_rx_msix_handler+0xbc/0x100 [iwlwifi]
> >>
> >> Thanks for reporting!
> >>
> >> We made a bunch of fixes in this area and Kalle just pulled them to
> >> wireless-drivers-next. I believe these changes will be in tomorrow's
> >> linux-next. Can you retry it then?
> >>
> > I tested today's linux-next:
> >
> > The lockdep warning is still there and occurs w/o any traffic on boot.
> > No CI machine on your side w/ lockdep enabled?
> >
> >
> > [ 5.845931] ========================================================
> > [ 5.845938] WARNING: possible irq lock inversion dependency detected
> > [ 5.845946] 5.11.0-rc7-next-20210212+ #1 Not tainted
> > [ 5.845954] --------------------------------------------------------
> > [ 5.845961] irq/131-iwlwifi/2132 just changed the state of lock:
> > [ 5.845969] ffff8ca6c88600b0 (&rxq->lock){+.-.}-{2:2}, at: iwl_pcie_rx_handle+0x7c/0x8b0 [iwlwifi]
> > [ 5.846011] but this lock took another, SOFTIRQ-unsafe lock in the past:
> > [ 5.846019] (napi_hash_lock){+.+.}-{2:2}
> > [ 5.846023]
> >
> > and interrupts could create inverse lock ordering between them.
> >
> > [ 5.846039]
> > other info that might help us debug this:
> > [ 5.846047] Possible interrupt unsafe locking scenario:
> >
> > [ 5.846055] CPU0 CPU1
> > [ 5.846061] ---- ----
> > [ 5.846066] lock(napi_hash_lock);
> > [ 5.846074] local_irq_disable();
> > [ 5.846081] lock(&rxq->lock);
> > [ 5.846090] lock(napi_hash_lock);
> > [ 5.846099] <Interrupt>
> > [ 5.846103] lock(&rxq->lock);
> > [ 5.846110]
> > *** DEADLOCK ***
> >
> > "api flags index 2 larger than supported by driver" is also still there
> >
> > 0024 AX210 version is now detected. When I disable the entry I don't get a GPF
> > any longer but a WARN() is triggered. Not sure why a WARN() was chosen because
> > the call trace provides no benefit here. More helpful would be a simple
> > error message stating: "dev id foo: unknown dev sub id bar. Contact maintainers."
> >
> >> --
> >> Cheers,
> >> Luca.
> >>
> > Heiner
> >
>
>
> One more comment, as I just wanted to upgrade my AX210 firmware version:
>
> Latest version in linux-firmware is 59. Seems you're at 62 already.
> And last but not least: The iwlwifi firmware pollutes the linux-firmware
> root directory. Wouldn't it be better to move all these firmware files
> to something like intel/iwlwifi ?
> Maybe for now you could leave symlinks in the root directory.
>
I agree with Heiner, that's something I do/did/will not like: the
locations for firmware files.
Here on Debian all firmware files are stored in "/lib/firmware"
directory - which should be plural "firmwares" IMHO.
We already have a lot of directories for vendors like "intel",
"nvidia", "matrox", etc.
If we move intel stuff around then please do it for intel-gfx stuff
like "i915" or ucodes like "intel-ucode".
I vote to move all intel stuff into a single directory called "intel"
where we have sub-dirs:
intel > i915
intel > iwlwifi
intel > ucode (renamed from "intel-ucode")
intel > e100
...
But before doing any move - this should be done for all vendors.
See realtek, broadcom, amd (radeon-gfx), etc.
Means collect all firmware stuff for bluetooth, wlan, ethernet, gfx
etc. of a single vendor.
If we do a cleanup then I vote to do this for all vendors?
Dunno, who is the maintainer of linux-firmware.
Guess we need to change code in the Linux sources to say "load
firmware from </path/to/dirname>".
( Should be one-liners. )
For that request we should open a new thread.
My €0,99 (if I would be a good guy I have written €1,00).
- Sedat -
