ath10k.lists.infradead.org archive mirror
 help / color / mirror / Atom feed
From: Axel Rasmussen <axel.rasmussen1@gmail.com>
To: "ojab //" <ojab@ojab.ru>
Cc: Kalle Valo <kvalo@codeaurora.org>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	ath10k@lists.infradead.org,
	 Linux Wireless <linux-wireless@vger.kernel.org>,
	netdev@vger.kernel.org,  LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH V2] ath10k: don't fail if IRAM write fails
Date: Thu, 12 Aug 2021 13:21:00 -0700	[thread overview]
Message-ID: <CACC2YF1WCSZqLrCig-O-_wJ9s4x47iTc2Xa0-LnyqLm8EWfUHg@mail.gmail.com> (raw)
In-Reply-To: <CACC2YF1j45r0chib-HC463FVO_a1Um1f+7PvuRBYVLC7WbgGnQ@mail.gmail.com>

Sorry again for the slow response time.

I got around to testing this today on my hardware. I tested with a
vanilla 5.13.8 kernel, and then the same kernel with this patch
applied. Long story short, the patch does indeed seem to at least work
around the issue I was seeing in [1]. With this patch applied, I still
get the same "failed to copy target iram contents" error, but the
interface comes up and seems to be functional regardless.

So, for what it's worth (granted I am no wireless expert!), you can take:

Tested-by: Axel Rasmussen <axelrasmussen@google.com>

(This issue has nothing to do with my full time job, but I'm meant to
use my @google.com address for any open source contributions, which I
believe applies to commit messages too.)

[1]: https://lists.infradead.org/pipermail/ath10k/2021-May/012626.html



Here are the two dmesg outputs, for comparison:

# uname -a
Linux router 5.13.8 #1 SMP Wed Aug 11 20:18:51 PDT 2021 x86_64 AMD
GX-412TC SOC AuthenticAMD GNU/Linux
# dmesg | grep ath
[   12.491747] ath10k_pci 0000:04:00.0: pci irq msi oper_irq_mode 2
irq_mode 0 reset_mode 0
[   12.613341] ath10k_pci 0000:04:00.0: qca9984/qca9994 hw1.0 target
0x01000000 chip_id 0x00000000 sub 168c:cafe
[   12.613367] ath10k_pci 0000:04:00.0: kconfig debug 1 debugfs 1
tracing 1 dfs 1 testmode 0
[   12.615071] ath10k_pci 0000:04:00.0: firmware ver
10.4-3.9.0.2-00131 api 5 features
no-p2p,mfp,peer-flow-ctrl,btcoex-param,allows-mesh-bcast,no-ps,peer-fixed-rate,iram-recovery
crc32 23bd9e43
[   13.846538] ath10k_pci 0000:04:00.0: board_file api 2 bmi_id 0:31
crc32 85498734
[   16.428502] ath10k_pci 0000:04:00.0: failed to copy target iram contents: -12
[   16.518692] ath10k_pci 0000:04:00.0: could not init core (-12)
[   16.518950] ath10k_pci 0000:04:00.0: could not probe fw (-12)



# uname -a
Linux router 5.13.8+ #2 SMP Wed Aug 11 20:28:56 PDT 2021 x86_64 AMD
GX-412TC SOC AuthenticAMD GNU/Linux
# dmesg | grep ath
[   12.201239] ath10k_pci 0000:04:00.0: pci irq msi oper_irq_mode 2
irq_mode 0 reset_mode 0
[   12.323354] ath10k_pci 0000:04:00.0: qca9984/qca9994 hw1.0 target
0x01000000 chip_id 0x00000000 sub 168c:cafe
[   12.323407] ath10k_pci 0000:04:00.0: kconfig debug 1 debugfs 1
tracing 1 dfs 1 testmode 0
[   12.325162] ath10k_pci 0000:04:00.0: firmware ver
10.4-3.9.0.2-00131 api 5 features
no-p2p,mfp,peer-flow-ctrl,btcoex-param,allows-mesh-bcast,no-ps,peer-fixed-rate,iram-reco
very crc32 23bd9e43
[   13.556748] ath10k_pci 0000:04:00.0: board_file api 2 bmi_id 0:31
crc32 85498734
[   16.155848] ath10k_pci 0000:04:00.0: No hardware memory
[   16.155873] ath10k_pci 0000:04:00.0: failed to copy target iram contents: -12
[   16.267376] 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
[   16.382257] ath: EEPROM regdomain sanitized
[   16.382289] ath: EEPROM regdomain: 0x64
[   16.382306] ath: EEPROM indicates we should expect a direct regpair map
[   16.382312] ath: Country alpha2 being used: 00
[   16.382316] ath: Regpair used: 0x64
[   16.393599] ath10k_pci 0000:04:00.0 wlp4s0: renamed from wlan0
[   41.264025] ath10k_pci 0000:04:00.0: No hardware memory
[   41.264045] ath10k_pci 0000:04:00.0: failed to copy target iram contents: -12
[   41.480677] ath10k_pci 0000:04:00.0: Unknown eventid: 36933

On Sun, Aug 1, 2021 at 7:23 PM Axel Rasmussen <axel.rasmussen1@gmail.com> wrote:
>
> On Thu, Jul 22, 2021 at 12:42 PM ojab // <ojab@ojab.ru> wrote:
> >
> > See also: https://lists.infradead.org/pipermail/ath10k/2021-May/012626.html
> >
> > On Thu, 22 Jul 2021 at 22:36, ojab <ojab@ojab.ru> wrote:
> > >
> > > After reboot with kernel & firmware updates I found `failed to copy
> > > target iram contents:` in dmesg and missing wlan interfaces for both
> > > of my QCA9984 compex cards. Rolling back kernel/firmware didn't fixed
> > > it, so while I have no idea what's actually happening, I don't see why
> > > we should fail in this case, looks like some optional firmware ability
> > > that could be skipped.
> > >
> > > Also with additional logging there is
> > > ```
> > > [    6.839858] ath10k_pci 0000:04:00.0: No hardware memory
> > > [    6.841205] ath10k_pci 0000:04:00.0: failed to copy target iram contents: -12
> > > [    6.873578] ath10k_pci 0000:07:00.0: No hardware memory
> > > [    6.875052] ath10k_pci 0000:07:00.0: failed to copy target iram contents: -12
> > > ```
> > > so exact branch could be seen.
> > >
> > > Signed-off-by: Slava Kardakov <ojab@ojab.ru>
> > > ---
> > >  Of course I forgot to sing off, since I don't use it by default because I
> > >  hate my real name and kernel requires it
>
> Thanks for working on this! And sorry for the slow response. I've been
> unexpectedly very busy lately, but I plan to test out this patch next
> week.
>
> > >
> > >  drivers/net/wireless/ath/ath10k/core.c | 9 ++++++---
> > >  1 file changed, 6 insertions(+), 3 deletions(-)
> > >
> > > diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
> > > index 2f9be182fbfb..d9fd5294e142 100644
> > > --- a/drivers/net/wireless/ath/ath10k/core.c
> > > +++ b/drivers/net/wireless/ath/ath10k/core.c
> > > @@ -2691,8 +2691,10 @@ static int ath10k_core_copy_target_iram(struct ath10k *ar)
> > >         u32 len, remaining_len;
> > >
> > >         hw_mem = ath10k_coredump_get_mem_layout(ar);
> > > -       if (!hw_mem)
> > > +       if (!hw_mem) {
> > > +               ath10k_warn(ar, "No hardware memory");
> > >                 return -ENOMEM;
> > > +       }
> > >
> > >         for (i = 0; i < hw_mem->region_table.size; i++) {
> > >                 tmp = &hw_mem->region_table.regions[i];
> > > @@ -2702,8 +2704,10 @@ static int ath10k_core_copy_target_iram(struct ath10k *ar)
> > >                 }
> > >         }
> > >
> > > -       if (!mem_region)
> > > +       if (!mem_region) {
> > > +               ath10k_warn(ar, "No memory region");
> > >                 return -ENOMEM;
> > > +       }
> > >
> > >         for (i = 0; i < ar->wmi.num_mem_chunks; i++) {
> > >                 if (ar->wmi.mem_chunks[i].req_id ==
> > > @@ -2917,7 +2921,6 @@ int ath10k_core_start(struct ath10k *ar, enum ath10k_firmware_mode mode,
> > >                 if (status) {
> > >                         ath10k_warn(ar, "failed to copy target iram contents: %d",
> > >                                     status);
> > > -                       goto err_hif_stop;
> > >                 }
> > >         }
> > >
> > > --
> > > 2.32.0

_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k

  reply	other threads:[~2021-08-12 20:21 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-22 19:35 ojab
2021-07-22 19:42 ` ojab //
2021-08-02  2:23   ` Axel Rasmussen
2021-08-12 20:21     ` Axel Rasmussen [this message]
2021-08-14 11:33       ` sparks71
2021-08-25 16:15 ` ojab //
2021-09-08 23:42   ` ojab //
2021-09-17 19:30     ` ojab //
2021-09-18 10:12       ` sparks71
2021-09-18 11:21         ` ojab //
2021-09-21  7:29         ` Kalle Valo
2021-09-21  7:50           ` sparks71
2021-10-20  7:54 ` Kalle Valo

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CACC2YF1WCSZqLrCig-O-_wJ9s4x47iTc2Xa0-LnyqLm8EWfUHg@mail.gmail.com \
    --to=axel.rasmussen1@gmail.com \
    --cc=ath10k@lists.infradead.org \
    --cc=davem@davemloft.net \
    --cc=kuba@kernel.org \
    --cc=kvalo@codeaurora.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-wireless@vger.kernel.org \
    --cc=netdev@vger.kernel.org \
    --cc=ojab@ojab.ru \
    --subject='Re: [PATCH V2] ath10k: don'\''t fail if IRAM write fails' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).