netdev - FMAN driver issue linux 5.10

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Message-ID: <45952240630d01c27832c4078c571d22@webmail1.ecil.co.in>
Date: Tue, 18 Nov 2025 11:44:36 +0000
From: sganguly@...l.co.in
To: netdev@...r.kernel.org, linux-fsl-dpaa@...escale.com
Subject: FMAN driver issue linux 5.10

Sir,
	Please find the following configuration.
	*  

	Kernel version (e.g., 5.10.131) 
	*  

	SoC/platform (T1014) 
	*  

	Symptom (TX “sent” but nothing on wire)

I am seeing increment in ifconfig but nothing sent or received physically on line.
I am attaching the dts file for reference.
Please help me to solve it.
# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:11:22:33:44:55
          inet addr:192.168.0.211  Bcast:192.168.0.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:21 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:882 (882.0 B)
          Memory:fe4e4000-fe4e4fff

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:37 errors:0 dropped:0 overruns:0 frame:0
          TX packets:37 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:3720 (3.6 KiB)  TX bytes:3720 (3.6 KiB)

# ping 192.168.0.24
PING 192.168.0.24 (192.168.0.24): 56 data bytes
^C
--- 192.168.0.24 ping statistics ---
2 packets transmitted, 0 packets received, 100% packet loss
# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:11:22:33:44:55
          inet addr:192.168.0.211  Bcast:192.168.0.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:24 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:1008 (1008.0 B)
          Memory:fe4e4000-fe4e4fff

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:37 errors:0 dropped:0 overruns:0 frame:0
          TX packets:37 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:3720 (3.6 KiB)  TX bytes:3720 (3.6 KiB)
	# ethtool eth0
Settings for eth0:
        Supported ports: [ MII ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Full
        Supported pause frame use: Symmetric Receive-only
        Supports auto-negotiation: Yes
        Supported FEC modes: Not reported
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Full
        Advertised pause frame use: Symmetric Receive-only
        Advertised auto-negotiation: Yes
        Advertised FEC modes: Not reported
        Link partner advertised link modes:  10baseT/Half 10baseT/Full
                                             100baseT/Half 100baseT/Full
        Link partner advertised pause frame use: Symmetric
        Link partner advertised auto-negotiation: Yes
        Link partner advertised FEC modes: Not reported
        Speed: 100Mb/s
        Duplex: Full
        Port: Twisted Pair
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: on
        MDI-X: Unknown
        Current message level: 0x00002037 (8247)
                               drv probe link ifdown ifup hw
        Link detected: yes
	Regards

Supriyo Ganguly
Manager - Technical, R&D-II
ELECTRONICS CORPORATION OF INDIA LIMITED
HYDERABAD - 500062
Contact -  040-27186369

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