Vlans on AC88U LAN5-8?

[nikki]

Hi,

Is it possible to configure VLANs on RTL8365 switch (LAN5-8)? Should I use rtkswitch utility for it?

 

[RMerlin]

No. There's no public documentation on how to program that chip.

Sent from my Nexus 5X using Tapatalk

 

[sfx2000]

The tool you'd likely use is the swconfig tool.. but if I recall, this ain't part of the Asus firmware...

I don't have an RT-AC88 to check...

 

[nikki]

No. There's no public documentation on how to program that chip.

https://github.com/RMerl/asuswrt-merlin/blob/master/release/src/router/rc/sysdeps/init-qca.c#L220

I'm not very familiar with the current firmware files structure. Does this code setup 8365 switch?

 

[nikki]

The tool you'd likely use is the swconfig tool.. but if I recall, this ain't part of the Asus firmware...

swconfig is absent in Merlin's firware. I cannot find it in entware either. Do you know where can I download the binary?

 

[RMerlin]

https://github.com/RMerl/asuswrt-merlin/blob/master/release/src/router/rc/sysdeps/init-qca.c#L220

I'm not very familiar with the current firmware files structure. Does this code setup 8365 switch?

No, this is a different switch, used by their Qualcomm-based router. The register didn't match when I tried it.

 

[nikki]

No, this is a different switch, used by their Qualcomm-based router. The register didn't match when I tried it.

Thank you for the answer. One more question: what is the fwd1 network interface for?

 

[RMerlin]

Thank you for the answer. One more question: what is the fwd1 network interface for?

I think it's related to the dhd process. Newer Broadcom architecture used by their wifi SoC that have their own CPU are based on it, and I suspect it's used for the dhd environment to communicate with the rest of the firmware. Beyond that, I don't know - it's not documented.

 

[nikki]

Ok, thank you again.

Here is is the sources of the switch driver. It is not the latest version, but it let's understand what's inside.

And here is the datasheet with registers description for the very similar switch chip.

The driver provides access to the registers via ioctls. Also it contains high level vlan setup functions (vlan.c) but they are not exposed via ioctl.

 

[nikki]

RMerlin,

I'd try to create a kernel module that exports few functions from rtl8365mb module via ioctls.

Which git branch should I use? I tried to compile master and got compile errors. Then I tried 380.57 branch, but also got compile errors. What I'm doing wrong here?

nikki@zbox-ext:/usr/src/merlin/asuswrt-merlin/release/src-rt-6.x.4708$ make  rt-ac88u
...
arm-brcm-linux-uclibcgnueabi-gcc -DBCMWPA2 -DBCMQOS -DBCM_DCS -DEXT_ACS -DD11AC_IOTYPES -DPHYMON -DPROXYARP -DTRAFFIC_MGMT -DTRAFFIC_MGMT_RSSI_POLICY -DMFP -D__CONFIG_MFP__ -DLINUX26 -DCONFIG_BCMWL5 -DDEBUG_NOISY -DDEBUG_RCTEST -pipe -DBCMWPA2 -DBCMARM -fno-strict-aliasing -marm -DLINUX_KERNEL_VERSION=132644  -DRTAC88U -O2 -D__CONFIG_DHDAP__ -D__CONFIG_GMAC3__ -DBCM_BSD -DBCM_DCS -DTRAFFIC_MGMT_RSSI_POLICY -D__CONFIG_EMF__ -D__CONFIG_WPS__ -DBCMWPA2 -DBCMQOS -DBCM_DCS -DEXT_ACS -DD11AC_IOTYPES -DPHYMON -DPROXYARP -DTRAFFIC_MGMT -DTRAFFIC_MGMT_RSSI_POLICY -DMFP -D__CONFIG_MFP__ -DLINUX26 -DCONFIG_BCMWL5 -DDEBUG_NOISY -DDEBUG_RCTEST -pipe -DBCMWPA2 -DBCMARM -fno-strict-aliasing -marm -DLINUX_KERNEL_VERSION=132644  -DRTAC88U -O2 -D__CONFIG_DHDAP__ -D__CONFIG_GMAC3__ -DBCM_BSD -DBCM_DCS -DTRAFFIC_MGMT_RSSI_POLICY -D__CONFIG_EMF__ -D__CONFIG_WPS__ -Os -Wall -DLINUX26 -DCONFIG_BCMWL5 -DDEBUG_NOISY -DDEBUG_RCTEST -pipe -DBCMWPA2 -DBCMARM -fno-strict-aliasing -marm -DLINUX_KERNEL_VERSION=132644  -fPIC -I. -I/usr/src/merlin/asuswrt-merlin/release/src-rt-6.x.4708/router/shared -I/usr/src/merlin/asuswrt-merlin/release/src-rt-6.x.4708/include -I/usr/src/merlin/asuswrt-merlin/release/src-rt-6.x.4708/linux/linux-2.6/include -D__EXPORTED_HEADERS__ -DSHP -I/usr/src/merlin/asuswrt-merlin/release/src-rt-6.x.4708/shared/bcmwifi/include -I/usr/src/merlin/asuswrt-merlin/release/src-rt-6.x.4708/common/include -DSMP -DBCM5301X -DAUTOFW_PORT_DEPRECATED -DTRAFFIC_MGMT -I/usr/src/merlin/asuswrt-merlin/release/src-rt-6.x.4708/linux/linux-2.6/drivers/char/rtl8365mb   -c -o et_linux.o et_linux.c
et_linux.c: In function ‘et_capable’:
et_linux.c:154:23: error: ‘IOV_CAP’ undeclared (first use in this function)
et_linux.c:154:23: note: each undeclared identifier is reported only once for each function it appears in
<builtin>: recipe for target 'et_linux.o' failed
make[5]: *** [et_linux.o] Error 1
make[5]: Leaving directory '/usr/src/merlin/asuswrt-merlin/release/src/router/shared'

and when I defined IOV_CAP by myself, I got errors in another file:

arm-brcm-linux-uclibcgnueabi-gcc -DBCMWPA2 -DBCMQOS -DBCM_DCS -DEXT_ACS -DD11AC_IOTYPES -DPHYMON -DPROXYARP -DTRAFFIC_MGMT -DTRAFFIC_MGMT_RSSI_POLICY -DMFP -D__CONFIG_MFP__ -DLINUX26 -DCONFIG_BCMWL5 -DDEBUG_NOISY -DDEBUG_RCTEST -pipe -DBCMWPA2 -DBCMARM -fno-strict-aliasing -marm -DLINUX_KERNEL_VERSION=132644  -DRTAC88U -O2 -D__CONFIG_DHDAP__ -D__CONFIG_GMAC3__ -DBCM_BSD -DBCM_DCS -DTRAFFIC_MGMT_RSSI_POLICY -D__CONFIG_EMF__ -D__CONFIG_WPS__ -DBCMWPA2 -DBCMQOS -DBCM_DCS -DEXT_ACS -DD11AC_IOTYPES -DPHYMON -DPROXYARP -DTRAFFIC_MGMT -DTRAFFIC_MGMT_RSSI_POLICY -DMFP -D__CONFIG_MFP__ -DLINUX26 -DCONFIG_BCMWL5 -DDEBUG_NOISY -DDEBUG_RCTEST -pipe -DBCMWPA2 -DBCMARM -fno-strict-aliasing -marm -DLINUX_KERNEL_VERSION=132644  -DRTAC88U -O2 -D__CONFIG_DHDAP__ -D__CONFIG_GMAC3__ -DBCM_BSD -DBCM_DCS -DTRAFFIC_MGMT_RSSI_POLICY -D__CONFIG_EMF__ -D__CONFIG_WPS__ -Os -Wall -DLINUX26 -DCONFIG_BCMWL5 -DDEBUG_NOISY -DDEBUG_RCTEST -pipe -DBCMWPA2 -DBCMARM -fno-strict-aliasing -marm -DLINUX_KERNEL_VERSION=132644  -fPIC -I. -I/usr/src/merlin/asuswrt-merlin/release/src-rt-6.x.4708/router/shared -I/usr/src/merlin/asuswrt-merlin/release/src-rt-6.x.4708/include -I/usr/src/merlin/asuswrt-merlin/release/src-rt-6.x.4708/linux/linux-2.6/include -D__EXPORTED_HEADERS__ -DSHP -I/usr/src/merlin/asuswrt-merlin/release/src-rt-6.x.4708/shared/bcmwifi/include -I/usr/src/merlin/asuswrt-merlin/release/src-rt-6.x.4708/common/include -DSMP -DBCM5301X -DAUTOFW_PORT_DEPRECATED -DTRAFFIC_MGMT -I/usr/src/merlin/asuswrt-merlin/release/src-rt-6.x.4708/linux/linux-2.6/drivers/char/rtl8365mb   -c -o rtl_8365mb.o sysdeps/broadcom/rtl_8365mb.c
sysdeps/broadcom/rtl_8365mb.c: In function ‘rtkswitch_ioctl’:
sysdeps/broadcom/rtl_8365mb.c:61:7: error: ‘INIT_SWITCH_UP’ undeclared (first use in this function)
sysdeps/broadcom/rtl_8365mb.c:61:7: note: each undeclared identifier is reported only once for each function it appears in
sysdeps/broadcom/rtl_8365mb.c:62:7: error: ‘GET_EXT_TXRXDELAY’ undeclared (first use in this function)
sysdeps/broadcom/rtl_8365mb.c: In function ‘ext_rtk_phyState’:
sysdeps/broadcom/rtl_8365mb.c:172:5: warning: assignment discards qualifiers from pointer target type
sysdeps/broadcom/rtl_8365mb.c:183:5: warning: assignment discards qualifiers from pointer target type
sysdeps/broadcom/rtl_8365mb.c:190:5: warning: assignment discards qualifiers from pointer target type
<builtin>: recipe for target 'rtl_8365mb.o' failed
make[5]: *** [rtl_8365mb.o] Error 1
make[5]: Leaving directory '/usr/src/merlin/asuswrt-merlin/release/src/router/shared'
Makefile:1815: recipe for target 'shared' failed

 

[RMerlin]

RMerlin,

I'd try to create a kernel module that exports few functions from rtl8365mb module via ioctls.

Which git branch should I use? I tried to compile master and got compile errors. Then I tried 380.57 branch, but also got compile errors. What I'm doing wrong here?

nikki@zbox-ext:/usr/src/merlin/asuswrt-merlin/release/src-rt-6.x.4708$ make  rt-ac88u

The RT-AC88U is an SDK7.14 device. You have to build it from release/src-rt-7.14.x/src/ .

 

[Denna]

RMerlin,

I'd try to create a kernel module that exports few functions from rtl8365mb module via ioctls.

Which git branch should I use? I tried to compile master and got compile errors. Then I tried 380.57 branch, but also got compile errors. What I'm doing wrong here?

nikki@zbox-ext:/usr/src/merlin/asuswrt-merlin/release/src-rt-6.x.4708$ make  rt-ac88u
...

@nikki,

Did you ever make any progress on this ?​