[dpdk-users] xl710 NIC doesn't receive 1518 bytes packets

[Kyle Larose]

I meant to suggest that, sorry. :( 

That said, I think a patch was submitted recently to set the mtu of slave ports when the bond's mtu is set.

http://dpdk.org/browse/dpdk/commit/drivers/net/bonding/rte_eth_bond_pmd.c?id=55b58a7374554cd1c86f4a13a0e2f54e9ba6fe4d

Are you running with that patch?

> -----Original Message-----
> From: Alex Kiselev [mailto:kiselev99 at gmail.com]
> Sent: Friday, January 26, 2018 8:44 AM
> To: Kyle Larose
> Cc: users
> Subject: Re: [dpdk-users] xl710 NIC doesn't receive 1518 bytes packets
> 
> 2018-01-24 17:14 GMT+03:00 Alex Kiselev <kiselev99 at gmail.com>:
> > Hi Kyle.
> >
> > 2018-01-24 17:01 GMT+03:00 Kyle Larose <klarose at sandvine.com>:
> >> Did you set the MTU on the bond port? It has separate configuration IIRC.
> 
> I don't see any special API functions for setting MTU of a bonding port
> neither in 17.08.1 that I am currently using nor in the latest DPDK branch.
> 
> So, I use regular MTU setting function rte_eth_dev_set_mtu() for my bond
> port created via command line arguments.
> And It doesn't work. 1518 bytes packets are being filtered.
> 
> I tried to hardcode setting MTU for each slave port and it solved the
> problem. So, it looks like the problem is the rte_eth_dev_set_mtu() call
> that doesn't change MTU of slave ports when it is called for a bonding port.
> 
> The described problem exists at least with i40e driver and doesn't show up
> when I use x520 NICS.
> 
> --
> Alex Kiselev