How is filogic 820/830 supported by OpenWrt?

ttc0419 · February 4, 2024, 9:52am

The official OpenWrt drivers for MediaTek SoC do not appear to include files for MT7981/6 (filogic 820/830). So, how routers such as the Redmi AX6000 are supported by OpenWrt. How the driver used by OpenWrt for filogic 820/830 differs from the one provided by the official MediaTek OpenWrt feeds. Specifically, does the OpenWrt driver support hardware acceleration like the official one? Were advanced features deliberately omitted by MediaTek developers in the open-source version of the driver, such as HNAT?

bmork · February 4, 2024, 10:07am

github.com

openwrt/mt76/blob/master/mt7915/soc.c

// SPDX-License-Identifier: ISC
/* Copyright (C) 2022 MediaTek Inc. */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pinctrl/consumer.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_reserved_mem.h>
#include <linux/of_gpio.h>
#include <linux/iopoll.h>
#include <linux/reset.h>
#include <linux/of_net.h>
#include <linux/clk.h>

#include "mt7915.h"

#define MT7981_CON_INFRA_VERSION 0x02090000
#define MT7986_CON_INFRA_VERSION 0x02070000

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etc

lleachii · February 4, 2024, 10:45am

Actually, hardware NAT is supported on MediTek chips.

ttc0419 · February 4, 2024, 12:47pm

Does wireless support hardware NAT? I just tested my setup again, offloading for switch ports seems fine, but for wireless, the kernel still spent a lot of time in sys according to top.

system · February 14, 2024, 12:48pm

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