From: Ping-Ke Shih <pkshih@realtek.com>
To: "luka.gejak@linux.dev" <luka.gejak@linux.dev>,
"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Michael Straube" <straube.linux@gmail.com>,
Bitterblue Smith <rtl8821cerfe2@gmail.com>,
Peter Robinson <pbrobinson@gmail.com>,
"Hans de Goede" <johannes.goede@oss.qualcomm.com>
Subject: RE: [PATCH v4 3/7] wifi: rtw88: tx: extend the TX report purge timeout to RTL8723BS
Date: Fri, 14 Aug 2026 07:15:50 +0000 [thread overview]
Message-ID: <d90ed84c1b114dea86af5b0065087a5a@realtek.com> (raw)
In-Reply-To: <20260811091203.26841-4-luka.gejak@linux.dev>
luka.gejak@linux.dev <luka.gejak@linux.dev> wrote:
> From: Luka Gejak <luka.gejak@linux.dev>
>
> Commit c80788f7c5ae ("wifi: rtw88: increase TX report timeout to fix
> race condition") raised the purge timeout to 2500 ms for the RTL8723DU,
> because the firmware can stay off channel during background scans for
> longer than the 500 ms default, which delays the TX reports and lets the
> purge timer drop the tracking skbs. The host stack then reads the missing
> status as loss and collapses TCP throughput.
>
> The RTL8723BS runs the same vendor firmware over a slower SDIO host and
> hits the same race. Testers on ARM SDIO boards see "failed to get tx
> report from firmware" under load, with the same throughput collapse.
> Extend the 2500 ms timeout to the RTL8723BS.
>
> Reported-by: Peter Robinson <pbrobinson@gmail.com>
> Closes:
> https://lore.kernel.org/all/CALeDE9PgQmpMfDt1DgfLD4tBFGH0MZ7GncV6RUEOHhHbKF+TdQ@mail.gmail.com/
> Signed-off-by: Luka Gejak <luka.gejak@linux.dev>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
next prev parent reply other threads:[~2026-08-14 7:16 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-11 9:11 [PATCH v4 0/7] wifi: rtw88: preparations for RTL8723B/RTL8723BS luka.gejak
2026-08-11 9:11 ` [PATCH v4 1/7] wifi: rtw88: add the RTL8723B chip type and SDIO helper luka.gejak
2026-08-14 7:15 ` Ping-Ke Shih
2026-08-11 9:11 ` [PATCH v4 2/7] wifi: rtw88: rx: mark zero length packets on RTL8723BS luka.gejak
2026-08-14 5:44 ` Ping-Ke Shih
2026-08-11 9:11 ` [PATCH v4 3/7] wifi: rtw88: tx: extend the TX report purge timeout to RTL8723BS luka.gejak
2026-08-14 7:15 ` Ping-Ke Shih [this message]
2026-08-11 9:12 ` [PATCH v4 4/7] wifi: rtw88: fw: handle the RTL8723BS management TX reports luka.gejak
2026-08-11 11:42 ` Bitterblue Smith
2026-08-14 5:52 ` Ping-Ke Shih
2026-08-11 9:12 ` [PATCH v4 5/7] wifi: rtw88: sdio: track free TX pages and OQT credits for RTL8723BS luka.gejak
2026-08-14 6:32 ` Ping-Ke Shih
2026-08-11 9:12 ` [PATCH v4 6/7] wifi: rtw88: sdio: set up RX aggregation and interrupts " luka.gejak
2026-08-14 6:41 ` Ping-Ke Shih
2026-08-11 9:12 ` [PATCH v4 7/7] wifi: rtw88: sdio: add TX back-pressure and retry on page starvation luka.gejak
2026-08-14 7:14 ` Ping-Ke Shih
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