From: Shawn Guo <shawnguo@kernel.org>
To: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Cc: robh+dt@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com,
linux-arm-kernel@lists.infradead.org,
linux-tegra@vger.kernel.org, linux-imx@nxp.com,
kernel@pengutronix.de, devicetree@vger.kernel.org,
qiangqing.zhang@nxp.com
Subject: Re: [PATCH v3] arm64: dts: imx8mp-evk: configure multiple queues on eqos
Date: Thu, 16 Dec 2021 18:14:41 +0800 [thread overview]
Message-ID: <20211216101438.GL4216@dragon> (raw)
In-Reply-To: <20211216092448.35927-1-xiaoliang.yang_1@nxp.com>
On Thu, Dec 16, 2021 at 05:24:48PM +0800, Xiaoliang Yang wrote:
> Eqos ethernet support five queues on hardware, enable these queues and
> configure the priority of each queue. Uses Strict Priority as scheduling
> algorithms to ensure that the TSN function works.
>
> The priority of each queue is a bitmask value that maps VLAN tag
> priority to the queue. Since the hardware only supports five queues,
> this patch maps priority 0-4 to queues one by one, and priority 5-7 to
> queue 4.
>
> The total fifo size of 5 queues is 8192 bytes, if enable 5 queues with
> store-and-forward mode, it's not enough for large packets, which would
> trigger fifo overflow frequently. This patch set DMA to thresh mode to
> enable all 5 queues.
>
> Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
> Reviewed-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Applied, thanks!
next prev parent reply other threads:[~2021-12-16 10:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-16 9:24 [PATCH v3] arm64: dts: imx8mp-evk: configure multiple queues on eqos Xiaoliang Yang
2021-12-16 10:14 ` Shawn Guo [this message]
2021-12-16 10:27 ` (EXT) " Alexander Stein
2021-12-16 10:54 ` [EXT] " Xiaoliang Yang
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