71 lines
2.8 KiB
Diff
71 lines
2.8 KiB
Diff
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From: Linus Lüssing <ll@simonwunderlich.de>
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Date: Wed, 5 Feb 2020 20:10:43 +0100
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Subject: mac80211: ath10k: increase rx buffer size to 2048
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Before, only frames with a maximum size of 1528 bytes could be
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transmitted between two 802.11s nodes.
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For batman-adv for instance, which adds its own header to each frame,
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we typically need an MTU of at least 1532 bytes to be able to transmit
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without fragmentation.
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This patch now increases the maxmimum frame size from 1528 to 1656
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bytes.
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Tested with two ath10k devices in 802.11s mode, as well as with
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batman-adv on top of 802.11s with forwarding disabled.
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Fix originally found and developed by Ben Greear.
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Link: https://github.com/greearb/ath10k-ct/issues/89
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Link: https://github.com/greearb/ath10k-ct/commit/9e5ab25027e0971fa24ccf93373324c08c4e992d
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Cc: Ben Greear <greearb@candelatech.com>
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Signed-off-by: Linus Lüssing <ll@simonwunderlich.de>
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Signed-off-by: Sven Eckelmann <sven@narfation.org>
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Forwarded: https://github.com/openwrt/openwrt/pull/2959
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diff --git a/package/kernel/mac80211/patches/ath/922-ath10k-increase-rx-buffer-size-to-2048.patch b/package/kernel/mac80211/patches/ath/922-ath10k-increase-rx-buffer-size-to-2048.patch
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new file mode 100644
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index 0000000000000000000000000000000000000000..f7c842f428986130002922b68daf3d29b096ddbd
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--- /dev/null
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+++ b/package/kernel/mac80211/patches/ath/922-ath10k-increase-rx-buffer-size-to-2048.patch
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@@ -0,0 +1,37 @@
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+From: Linus Lüssing <ll@simonwunderlich.de>
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+Date: Wed, 5 Feb 2020 20:10:43 +0100
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+Subject: ath10k: increase rx buffer size to 2048
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+
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+Before, only frames with a maximum size of 1528 bytes could be
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+transmitted between two 802.11s nodes.
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+
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+For batman-adv for instance, which adds its own header to each frame,
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+we typically need an MTU of at least 1532 bytes to be able to transmit
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+without fragmentation.
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+
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+This patch now increases the maxmimum frame size from 1528 to 1656
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+bytes.
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+
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+Tested with two ath10k devices in 802.11s mode, as well as with
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+batman-adv on top of 802.11s with forwarding disabled.
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+
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+Fix originally found and developed by Ben Greear.
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+
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+Link: https://github.com/greearb/ath10k-ct/issues/89
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+Link: https://github.com/greearb/ath10k-ct/commit/9e5ab25027e0971fa24ccf93373324c08c4e992d
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+Cc: Ben Greear <greearb@candelatech.com>
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+Signed-off-by: Linus Lüssing <ll@simonwunderlich.de>
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+
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+Forwarded: https://patchwork.kernel.org/patch/11367055/
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+
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+--- a/drivers/net/wireless/ath/ath10k/htt.h
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++++ b/drivers/net/wireless/ath/ath10k/htt.h
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+@@ -2004,7 +2004,7 @@ struct htt_rx_desc {
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+ * Should be: sizeof(struct htt_host_rx_desc) + max rx MSDU size,
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+ * rounded up to a cache line size.
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+ */
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+-#define HTT_RX_BUF_SIZE 1920
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++#define HTT_RX_BUF_SIZE 2048
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+ #define HTT_RX_MSDU_SIZE (HTT_RX_BUF_SIZE - (int)sizeof(struct htt_rx_desc))
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+
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+ /* Refill a bunch of RX buffers for each refill round so that FW/HW can handle
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