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d6d8851d12
Manually rebased: bcm27xx/patches-5.15/950-0421-Support-RPi-DPI-interface-in-mode6-for-18-bit-color.patch bcm27xx/patches-5.15/950-0706-media-i2c-imx219-Scale-the-pixel-clock-rate-for-the-.patch ramips/patches-5.15/810-uvc-add-iPassion-iP2970-support.patch Removed upstreamed: bcm27xx/patches-5.15/950-0707-drm-vc4-For-DPI-MEDIA_BUS_FMT_RGB565_1X16-is-mode-1-.patch[1] bcm27xx/patches-5.15/950-0596-drm-vc4-dpi-Add-option-for-inverting-pixel-clock-and.patch[2] ipq807x/0006-v5.16-arm64-dts-qcom-Fix-IPQ8074-PCIe-PHY-nodes.patch [3] ipq807x/0034-v6.1-arm64-dts-qcom-ipq8074-fix-PCIe-PHY-serdes-size.patch [4] ipq807x/0103-arm64-dts-qcom-ipq8074-fix-Gen2-PCIe-QMP-PHY.patch [5] ipq807x/0104-arm64-dts-qcom-ipq8074-fix-Gen3-PCIe-QMP-PHY.patch [6] ipq807x/0105-arm64-dts-qcom-ipq8074-correct-Gen2-PCIe-ranges.patch [7] ipq807x/0108-arm64-dts-qcom-ipq8074-fix-Gen3-PCIe-node.patch [8] ipq807x/0109-arm64-dts-qcom-ipq8074-correct-PCIe-QMP-PHY-output-c.patch [9] ipq807x/0132-arm64-dts-qcom-ipq8074-correct-USB3-QMP-PHY-s-clock-.patch [10] All other patches automatically rebased. 1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.99&id=d2991e6b30020e286f2dd9d3b4f43548c547caa6 2. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/gpu/drm/vc4/vc4_dpi.c?h=v5.15.100&id=8e04aaffb6de5f1ae61de7b671c1531172ccf429 3. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/arch/arm64/boot/dts/qcom/ipq8074.dtsi?h=v5.15.99&id=a55a645aa303a3f7ec37db69822d5420657626da 4. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/arch/arm64/boot/dts/qcom/ipq8074.dtsi?h=v5.15.99&id=d9df682bcea57fa25f37bbf17eae56fa05662635 5. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/arch/arm64/boot/dts/qcom/ipq8074.dtsi?h=v5.15.99&id=7e6eeb5fb3aa9e5feffdb6e137dcc06f5f6410e1 6. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/arch/arm64/boot/dts/qcom/ipq8074.dtsi?h=v5.15.99&id=e88204931d9a60634cd50bbc679f045439c4b91d 7. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/arch/arm64/boot/dts/qcom/ipq8074.dtsi?h=v5.15.99&id=1563af0f28afd3b6d64ac79a2aecced3969c90bf 8. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/arch/arm64/boot/dts/qcom/ipq8074.dtsi?h=v5.15.99&id=feb8c71f015d416f1afe90e1f62cf51e47376c67 9. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/arch/arm64/boot/dts/qcom/ipq8074.dtsi?h=v5.15.99&id=69c7a270357a7d50ffd3471b14c60250041200e3 10. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/arch/arm64/boot/dts/qcom/ipq8074.dtsi?h=v5.15.99&id=dd3d021ae5471d98adf81f1e897431c8657d0a18 Build system: x86_64 Build-tested: bcm2711/RPi4B, ramips/tplink_archer-a6-v3 Run-tested: bcm2711/RPi4B, ramips/tplink_archer-a6-v3 Signed-off-by: John Audia <therealgraysky@proton.me> Tested-by: Robert Marko <robimarko@gmail.com> #ipq807x/Dynalink WRX36 Tested-by: Stefan Lippers-Hollmann <s.l-h@gmx.de> #ipq807x/ax3600, x86_64/FW-7543B, ath79/tl-wdr3600, ipq806x/g10, ipq806x/nbg6817
71 lines
2.4 KiB
Diff
71 lines
2.4 KiB
Diff
From 87bb6f0edf9a4a14d9b41bcfe97216f74f730b43 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Fri, 25 Sep 2020 15:07:23 +0100
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Subject: [PATCH] net: bcmgenet: Reset RBUF on first open
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If the RBUF logic is not reset when the kernel starts then there
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may be some data left over from any network boot loader. If the
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64-byte packet headers are enabled then this can be fatal.
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Extend bcmgenet_dma_disable to do perform the reset, but not when
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called from bcmgenet_resume in order to preserve a wake packet.
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N.B. This different handling of resume is just based on a hunch -
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why else wouldn't one reset the RBUF as well as the TBUF? If this
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isn't the case then it's easy to change the patch to make the RBUF
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reset unconditional.
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See: https://github.com/raspberrypi/linux/issues/3850
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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drivers/net/ethernet/broadcom/genet/bcmgenet.c | 16 ++++++++++++----
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1 file changed, 12 insertions(+), 4 deletions(-)
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--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
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+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
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@@ -3265,7 +3265,7 @@ static void bcmgenet_get_hw_addr(struct
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}
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/* Returns a reusable dma control register value */
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-static u32 bcmgenet_dma_disable(struct bcmgenet_priv *priv)
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+static u32 bcmgenet_dma_disable(struct bcmgenet_priv *priv, bool flush_rx)
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{
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unsigned int i;
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u32 reg;
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@@ -3290,6 +3290,14 @@ static u32 bcmgenet_dma_disable(struct b
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udelay(10);
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bcmgenet_umac_writel(priv, 0, UMAC_TX_FLUSH);
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+ if (flush_rx) {
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+ reg = bcmgenet_rbuf_ctrl_get(priv);
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+ bcmgenet_rbuf_ctrl_set(priv, reg | BIT(0));
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+ udelay(10);
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+ bcmgenet_rbuf_ctrl_set(priv, reg);
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+ udelay(10);
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+ }
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+
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return dma_ctrl;
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}
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@@ -3353,8 +3361,8 @@ static int bcmgenet_open(struct net_devi
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bcmgenet_set_hw_addr(priv, dev->dev_addr);
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- /* Disable RX/TX DMA and flush TX queues */
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- dma_ctrl = bcmgenet_dma_disable(priv);
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+ /* Disable RX/TX DMA and flush TX and RX queues */
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+ dma_ctrl = bcmgenet_dma_disable(priv, true);
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/* Reinitialize TDMA and RDMA and SW housekeeping */
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ret = bcmgenet_init_dma(priv);
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@@ -4212,7 +4220,7 @@ static int bcmgenet_resume(struct device
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bcmgenet_hfb_create_rxnfc_filter(priv, rule);
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/* Disable RX/TX DMA and flush TX queues */
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- dma_ctrl = bcmgenet_dma_disable(priv);
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+ dma_ctrl = bcmgenet_dma_disable(priv, false);
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/* Reinitialize TDMA and RDMA and SW housekeeping */
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ret = bcmgenet_init_dma(priv);
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