From: Ping-Ke Shih <pkshih@realtek.com>
To: Luka Gejak <luka.gejak@linux.dev>
Cc: "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Michael Straube" <straube.linux@gmail.com>,
Peter Robinson <pbrobinson@gmail.com>,
Bitterblue Smith <rtl8821cerfe2@gmail.com>
Subject: RE: [PATCH v11 4/7] wifi: rtw88: sdio: zero the padding added to a TX transfer
Date: Fri, 11 Sep 2026 00:45:32 +0000 [thread overview]
Message-ID: <2294d792e937441fbf4ef8169c03df18@realtek.com> (raw)
In-Reply-To: <DLBR915C5L0S.1TEYXZ8LADNTH@linux.dev>
Luka Gejak <luka.gejak@linux.dev> wrote:
> mac80211 reserves IEEE80211_ENCRYPT_TAILROOM, 18 bytes, and offers
> no way for a driver to ask for more on TX; extra_tx_headroom is headroom
> and extra_beacon_tailroom is beacons only.
You can modify mac80211 to reserve larger ndev->needed_tailroom to
see if it can really resolve the symptom. If so, you can propose
to add fields for tailroom like headroom:
struct ieee80211_hw:: extra_tx_tailroom
struct ieee80211_local:: tx_headroom
Ping-Ke
next prev parent reply other threads:[~2026-09-11 0:45 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-09 7:45 [PATCH v11 0/7] wifi: rtw88: preparations for RTL8723B/RTL8723BS luka.gejak
2026-09-09 7:45 ` [PATCH v11 1/7] wifi: rtw88: add the RTL8723B chip type and SDIO helper luka.gejak
2026-09-09 7:45 ` [PATCH v11 2/7] wifi: rtw88: rx: mark zero length packets on RTL8723BS luka.gejak
2026-09-09 7:45 ` [PATCH v11 3/7] wifi: rtw88: tx: extend the TX report purge timeout to RTL8723BS luka.gejak
2026-09-09 7:45 ` [PATCH v11 4/7] wifi: rtw88: sdio: zero the padding added to a TX transfer luka.gejak
2026-09-10 2:24 ` Ping-Ke Shih
2026-09-10 14:56 ` Luka Gejak
2026-09-10 15:51 ` Luka Gejak
2026-09-11 0:45 ` Ping-Ke Shih [this message]
2026-09-11 0:53 ` Ping-Ke Shih
2026-09-11 7:40 ` Luka Gejak
2026-09-11 7:45 ` Ping-Ke Shih
2026-09-11 8:42 ` Luka Gejak
2026-09-13 2:53 ` Ping-Ke Shih
2026-09-11 0:30 ` Ping-Ke Shih
2026-09-11 6:41 ` Luka Gejak
2026-09-09 7:45 ` [PATCH v11 5/7] wifi: rtw88: sdio: track free TX pages and OQT credits for RTL8723BS luka.gejak
2026-09-10 2:40 ` Ping-Ke Shih
2026-09-09 7:45 ` [PATCH v11 6/7] wifi: rtw88: sdio: set up RX aggregation and interrupts " luka.gejak
2026-09-09 7:45 ` [PATCH v11 7/7] wifi: rtw88: sdio: add TX back-pressure and retry on page starvation luka.gejak
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