On 21/06/2020 21:08, Florian Fainelli wrote:
Le 2020-06-21 à 13:24, ѽ҉ᶬḳ℠ a écrit :{"kernel":"5.4.46","hostname":"OpenWrt","system":"ARMv7 Processor rev 1 (v7l)","model":"Turris Omnia","board_name":"cznic,turris-omnia","release":{"distribution":"OpenWrt","version":"SNAPSHOT","revision":"r13600-9a477b833a","target":"mvebu/cortexa9","description":"OpenWrt SNAPSHOT r13600-9a477b833a"}} _____With the below cited DT both CPU ports facing the node's build-in switch are brought online at boot time with kernel 4.14 but since having switched to kernel 5.4 only one CPU port gets online. It is as if the kernel discards the presence of the secondary CPU port. Kernel log only prints for the offline port just a single entry: mvneta f1070000.ethernet eth0: Using hardware mac address Swapping eth1 to port6 and eth0 to port6 then eth0 is brought online but eth1 is not. Removing port5 then the port6 listed port is brought up/online. Once the node is booted the offline port can brought up with ip l set up. This seems like a regression bug in between the kernel versions.There can only be one CPU port at a time active right now, so I am not sure why it even worked with kernel 4.14.
What is the reasoning, because DSA is not coded to handle multi-ports? DSA can be patched downstream (proposed patches to mainline kernel were not accepted) and is so is for the 4.14 instance but there is DSA patch available for the 5.4 instance yet. That aside I would assume that DSA is not in charge of handling the state of the CPU ports but rather PHY or PHYLINK?
I understand that dual CPU port chipset design is somewhat unusual but it is something unique and therefore a fringe case that is not supported by the kernel?
Could you please share kernel logs and the output of ip link show in both working/non-working cases?
Sure, does the ML accept attachments, if so which format, or you want two full kernel logs in the message body? Meantime, the short version:
4.14 dmesg -t | grep mvneta mvneta f1070000.ethernet eth0: Using hardware mac address d8:58:d7:00:79:7c mvneta f1030000.ethernet eth1: Using hardware mac address d8:58:d7:00:79:7a mvneta f1034000.ethernet eth2: Using hardware mac address d8:58:d7:00:79:7b mvneta f1034000.ethernet eth2: switched to 802.3z/1000base-x link mode mvneta f1070000.ethernet eth0: configuring for fixed/rgmii link mode mvneta f1070000.ethernet eth0: Link is Up - 1Gbps/Full - flow control offmvneta f1030000.ethernet eth1: Disable IP checksum for MTU greater than 1600B
mvneta f1030000.ethernet eth1: configuring for fixed/rgmii link mode mvneta f1030000.ethernet eth1: Link is Up - 1Gbps/Full - flow control off mvneta f1034000.ethernet eth2: configuring for 802.3z/1000base-x link mode mvneta f1034000.ethernet eth2: Link is Up - 1Gbps/Full - flow control off mvneta f1034000.ethernet eth2: Link is Down mvneta f1034000.ethernet eth2: configuring for 802.3z/1000base-x link mode mvneta f1034000.ethernet eth2: Link is Up - 1Gbps/Full - flow control off mvneta f1034000.ethernet eth2: Link is Down mvneta f1034000.ethernet eth2: configuring for 802.3z/1000base-x link mode mvneta f1034000.ethernet eth2: Link is Up - 1Gbps/Full - flow control off 5.4 dmesg -t | grep mvneta mvneta f1070000.ethernet eth0: Using hardware mac address d8:58:d7:00:79:7c mvneta f1030000.ethernet eth1: Using hardware mac address d8:58:d7:00:79:7a mvneta f1034000.ethernet eth2: Using hardware mac address d8:58:d7:00:79:7b mvneta f1034000.ethernet eth2: switched to inband/1000base-x link modemvneta f1030000.ethernet eth1: Disable IP checksum for MTU greater than 1600B
mvneta f1030000.ethernet eth1: configuring for fixed/rgmii link mode mvneta f1030000.ethernet eth1: Link is Up - 1Gbps/Full - flow control off mvneta f1034000.ethernet eth2: configuring for inband/1000base-x link mode mvneta f1034000.ethernet eth2: Link is Up - 1Gbps/Full - flow control off mvneta f1034000.ethernet eth2: Link is Down mvneta f1034000.ethernet eth2: configuring for inband/1000base-x link mode mvneta f1034000.ethernet eth2: configuring for inband/1000base-x link mode mvneta f1034000.ethernet eth2: Link is Up - 1Gbps/Full - flow control off mvneta f1034000.ethernet eth2: Link is Down mvneta f1034000.ethernet eth2: configuring for inband/1000base-x link mode mvneta f1034000.ethernet eth2: configuring for inband/1000base-x link mode mvneta f1034000.ethernet eth2: Link is Up - 1Gbps/Full - flow control off
OpenPGP_0xF4F735931F05C5CE.asc
Description: application/pgp-keys
OpenPGP_signature
Description: OpenPGP digital signature
