d0784a69dd
Changelog: https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.75 Removed upstream: bcm27xx/patches-6.12/950-0225-media-i2c-ov5647-Correct-pixel-array-offset.patch[1] bcm27xx/patches-6.12/950-0226-media-i2c-ov5647-Correct-minimum-VBLANK-value.patch[2] bcm27xx/patches-6.12/950-0248-media-i2c-ov5647-Sensor-should-report-RAW-color-spac.patch[3] qualcommax/patches-6.12/0074-v6.20-clk-qcom-gcc-ipq5018-flag-sleep-clock-as-critical.patch[4] Manually rebased: bcm27xx/patches-6.12/950-0262-mfd-simple-mfd-i2c-Add-configuration-for-RPi-POE-HAT.patch bcm27xx/patches-6.12/950-0071-drivers-mfd-sensehat-Add-Raspberry-Pi-Sense-HAT-to-s.patch bcm27xx/patches-6.12/950-0516-media-i2c-ov5647-Add-V4L2_CID_LINK_FREQUENCY-control.patch lantiq/patches-6.12/101-find_active_root.patch All other patches automatically rebased. 1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.12.75&id=58f1767ad5c9eda3dd0befddc1843259d46d64fa 2. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.12.75&id=ff65571ffae52b65577121e7696bf22156e1928a 3. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.12.75&id=fbf2a108ed5eb1c896d3f354bd05314c2e22e78f 4. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.12.75&id=b109dd4970a0fc89d54b1198b163f86125dd2977 Build system: x86/64 Build-tested: flogic/glinet_gl-mt6000 Run-tested: flogic/glinet_gl-mt6000 Co-authored-by: Shiji Yang <yangshiji66@outlook.com> Signed-off-by: John Audia <therealgraysky@proton.me> Link: https://github.com/openwrt/openwrt/pull/22276 Signed-off-by: Robert Marko <robimarko@gmail.com>
57 lines
2.0 KiB
Diff
57 lines
2.0 KiB
Diff
From 074f4489044e087bbe8a703aed543d154b6574ac Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.org>
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Date: Wed, 13 Jun 2018 15:21:10 +0100
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Subject: [PATCH] net: lan78xx: Disable TCP Segmentation Offload (TSO)
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TSO seems to be having issues when packets are dropped and the
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remote end uses Selective Acknowledge (SACK) to denote that
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data is missing. The missing data is never resent, so the
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connection eventually stalls.
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There is a module parameter of enable_tso added to allow
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further debugging without forcing a rebuild of the kernel.
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https://github.com/raspberrypi/linux/issues/2449
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https://github.com/raspberrypi/linux/issues/2482
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
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---
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drivers/net/usb/lan78xx.c | 19 +++++++++++++++++--
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1 file changed, 17 insertions(+), 2 deletions(-)
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--- a/drivers/net/usb/lan78xx.c
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+++ b/drivers/net/usb/lan78xx.c
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@@ -604,6 +604,15 @@ static int lan78xx_alloc_tx_resources(st
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dev->n_tx_urbs, dev->tx_urb_size, dev);
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}
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+/* TSO seems to be having some issue with Selective Acknowledge (SACK) that
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+ * results in lost data never being retransmitted.
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+ * Disable it by default now, but adds a module parameter to enable it for
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+ * debug purposes (the full cause is not currently understood).
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+ */
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+static bool enable_tso;
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+module_param(enable_tso, bool, 0644);
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+MODULE_PARM_DESC(enable_tso, "Enables TCP segmentation offload");
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+
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static int lan78xx_read_reg(struct lan78xx_net *dev, u32 index, u32 *data)
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{
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u32 *buf;
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@@ -3462,8 +3471,14 @@ static int lan78xx_bind(struct lan78xx_n
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if (DEFAULT_RX_CSUM_ENABLE)
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dev->net->features |= NETIF_F_RXCSUM;
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- if (DEFAULT_TSO_CSUM_ENABLE)
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- dev->net->features |= NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_SG;
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+ if (DEFAULT_TSO_CSUM_ENABLE) {
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+ dev->net->features |= NETIF_F_SG;
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+ /* Use module parameter to control TCP segmentation offload as
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+ * it appears to cause issues.
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+ */
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+ if (enable_tso)
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+ dev->net->features |= NETIF_F_TSO | NETIF_F_TSO6;
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+ }
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if (DEFAULT_VLAN_RX_OFFLOAD)
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dev->net->features |= NETIF_F_HW_VLAN_CTAG_RX;
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