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    Subject[PATCH 4.18 053/171] arm64: dts: stratix10: fix multicast filtering
    Date
    4.18-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    commit fd5ba6ee3187617287fb9cb187e3d6b3631210a3 upstream

    On Stratix 10, the EMAC has 256 hash buckets for multicast filtering. This
    needs to be specified in DTS, otherwise the stmmac driver defaults to 64
    buckets and initializes the filter incorrectly. As a result, e.g. valid
    IPv6 multicast traffic ends up being dropped.

    Fixes: 78cd6a9d8e15 ("arm64: dts: Add base stratix 10 dtsi")
    Cc: stable@vger.kernel.org
    Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
    Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi | 3 +++
    1 file changed, 3 insertions(+)

    diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
    index 22f88188b0f5..6c8bd13d64b8 100644
    --- a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
    +++ b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
    @@ -133,6 +133,7 @@
    clock-names = "stmmaceth";
    tx-fifo-depth = <16384>;
    rx-fifo-depth = <16384>;
    + snps,multicast-filter-bins = <256>;
    status = "disabled";
    };

    @@ -148,6 +149,7 @@
    clock-names = "stmmaceth";
    tx-fifo-depth = <16384>;
    rx-fifo-depth = <16384>;
    + snps,multicast-filter-bins = <256>;
    status = "disabled";
    };

    @@ -163,6 +165,7 @@
    clock-names = "stmmaceth";
    tx-fifo-depth = <16384>;
    rx-fifo-depth = <16384>;
    + snps,multicast-filter-bins = <256>;
    status = "disabled";
    };

    --
    2.17.1


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