Messages in this thread | | | From | Michael Walle <> | Subject | Re: [PATCH 0/5] drivers/net: add NXP FEC-UIO driver | Date | Thu, 11 Nov 2021 12:06:42 +0100 |
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[linux-devel@linux.nxdi.nxp.com doesn't exist in the public, which is quite annoying when you reply to an email and the MTA doesn't accept it due to invalid domains]
> This patch series introduce the fec-uio driver, supported for the inbuilt > NIC found in the NXP i.MX 8M Mini SoC. Basic hardware initialization is > performed in kernel via userspace input/output(UIO) to support FEC > ethernet device detection in user space.
Could you elaborate for what this driver is needed? Doesn't the imx8mm already have a network driver? What is the difference between them?
As a user, I couldn't find what this is all about, neither in this commit message nor in the Kconfig help text.
> Userspace PMD uses standard UIO interface to access kernel for PHY > initialisation and for mapping the allocated memory of register & > buffer descriptor with DPDK which gives access to non-cacheable memory > for buffer descriptor. > > Module fec-uio.ko will get generated. > imx8mm-evk-dpdk.dtb is required to support fec-uio driver.
-michael
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