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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hello, I have an Intel i350 NIC which is using the e1000 dpdk driver (dpdk version= 22.11.4), I also have a copper SFP module (Finisar PNFCLF8522P2BTL) which = I was hoping to use with this NIC. During testing the NIC/SFP combination s= eems to work fine as the link comes up fine after boot and passes traffic w= hilst using VPP with DPDK, however if the SFP is removed and re-inserted th= e link will never come back up. Reading the source code for the e1000 driver I came across: https://github.com/DPDK/dpdk/blob/main/drivers/net/e1000/igb_ethdev.c#L5100 Which seems to indicate that there isn't complete support for copper media = SFP modules with the driver and/or NIC, I am thinking this explains why thi= ngs like hot plug don't appear to work. I took DPDK out of the picture and = see the same behaviour with Linux 6.1.0-21-amd64, which further makes me be= lieve there is an incompatibility here with my chosen (or in fact all) copp= er SFP modules. Would anyone more knowledgeable with this driver be able to= shed some light on what I am seeing here? The device details are as follows: gnos@cpe:~$ sudo lshw -c network -businfo Bus info Device Class Description =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D pci@0000:02:00.0 network I350 G= igabit Fiber Network Connection pci@0000:02:00.1 network I350 G= igabit Fiber Network Connection The PCI device id is 8086:1522 Any help or pointers you can give are much appreciated! Thank you, Peter. --_000_PH0PR17MB46394E3936936868273FCC73BDF12PH0PR17MB4639namp_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hello,

I have an Intel i350 NIC which is using the e1000 dpdk driver (dpdk version= 22.11.4), I also have a copper SFP module (Finisar PNFCLF8522P2BTL) which = I was hoping to use with this NIC. During testing the NIC/SFP combination s= eems to work fine as the link comes up fine after boot and passes traffic whilst using VPP with DPDK, however = if the SFP is removed and re-inserted the link will never come back up.

Reading the source code for the e1000 driver I came across:

https://github.com/DPDK/dpdk/b= lob/main/drivers/net/e1000/igb_ethdev.c#L5100

Which seems to indicate that there isn't complete support for copper media = SFP modules with the driver and/or NIC, I am thinking this explains why thi= ngs like hot plug don't appear to work. I took DPDK out of the picture and = see the same behaviour with Linux 6.1.0-21-amd64, which further makes me believe there is an incompatibility= here with my chosen (or in fact all) copper SFP modules. Would anyone more= knowledgeable with this driver be able to shed some light on what I am see= ing here?

The device details are as follows:

gnos@cpe:~$ sudo lshw -c network -businfo       
Bus info          Device     Class  = ;        Description
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D
pci@0000:02:00.0  = ;           network        I350= Gigabit Fiber Network Connection
pci@0000:02:00.1  = ;           network        I350= Gigabit Fiber Network Connection
 
The PCI device id is 8086:1522 

Any help or pointers you can give are much appreciated!

Thank you,
Peter.
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