From: Kalle Valo <kvalo@kernel.org>
To: Fabio Estevam <festevam@denx.de>
Cc: kvalo@codeaurora.org, ath10k@lists.infradead.org,
linux-wireless@vger.kernel.org, wgong@codeaurora.org,
Fabio Estevam <festevam@denx.de>
Subject: Re: [PATCH v3] ath10k: Fix the MTU size on QCA9377 SDIO
Date: Tue, 7 Dec 2021 15:10:13 +0000 (UTC) [thread overview]
Message-ID: <163888981163.18601.16356465928600024719.kvalo@kernel.org> (raw)
In-Reply-To: <20211124131047.713756-1-festevam@denx.de>
Fabio Estevam <festevam@denx.de> wrote:
> On an imx6dl-pico-pi board with a QCA9377 SDIO chip, simply trying to
> connect via ssh to another machine causes:
>
> [ 55.824159] ath10k_sdio mmc1:0001:1: failed to transmit packet, dropping: -12
> [ 55.832169] ath10k_sdio mmc1:0001:1: failed to submit frame: -12
> [ 55.838529] ath10k_sdio mmc1:0001:1: failed to push frame: -12
> [ 55.905863] ath10k_sdio mmc1:0001:1: failed to transmit packet, dropping: -12
> [ 55.913650] ath10k_sdio mmc1:0001:1: failed to submit frame: -12
> [ 55.919887] ath10k_sdio mmc1:0001:1: failed to push frame: -12
>
> , leading to an ssh connection failure.
>
> One user inspected the size of frames on Wireshark and reported
> the followig:
>
> "I was able to narrow the issue down to the mtu. If I set the mtu for
> the wlan0 device to 1486 instead of 1500, the issue does not happen.
>
> The size of frames that I see on Wireshark is exactly 1500 after
> setting it to 1486."
>
> Clearing the HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE avoids the problem and
> the ssh command works successfully after that.
>
> Introduce a 'credit_size_workaround' field to ath10k_hw_params for
> the QCA9377 SDIO, so that the HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE
> is not set in this case.
>
> Tested with QCA9377 SDIO with firmware WLAN.TF.1.1.1-00061-QCATFSWPZ-1.
>
> Fixes: 2f918ea98606 ("ath10k: enable alt data of TX path for sdio")
> Signed-off-by: Fabio Estevam <festevam@denx.de>
> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Patch applied to ath-next branch of ath.git, thanks.
09b8cd69edcf ath10k: Fix the MTU size on QCA9377 SDIO
--
https://patchwork.kernel.org/project/linux-wireless/patch/20211124131047.713756-1-festevam@denx.de/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
prev parent reply other threads:[~2021-12-07 15:10 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-24 13:10 [PATCH v3] ath10k: Fix the MTU size on QCA9377 SDIO Fabio Estevam
2021-12-01 14:27 ` Kalle Valo
2021-12-02 9:13 ` Christian Hewitt
2021-12-02 22:53 ` Fabio Estevam
2021-12-07 15:10 ` Kalle Valo [this message]
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=163888981163.18601.16356465928600024719.kvalo@kernel.org \
--to=kvalo@kernel.org \
--cc=ath10k@lists.infradead.org \
--cc=festevam@denx.de \
--cc=kvalo@codeaurora.org \
--cc=linux-wireless@vger.kernel.org \
--cc=wgong@codeaurora.org \
/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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
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).