Resending as the original email was sent in HTLM format and hence my reply went in that format as well; which got rejected by netdev mailer.
> -----Original Message----- > From: Intel-wired-lan [mailto:intel-wired-lan-boun...@lists.osuosl.org] On > Behalf Of Parikh, Neerav > Sent: Tuesday, April 19, 2016 10:45 AM > To: Jeremy Ashton <jeremy.ash...@shopify.com> > Cc: netdev@vger.kernel.org; intel-wired-...@lists.osuosl.org > Subject: Re: [Intel-wired-lan] i40e error handling LLDP messages from Arista > switches > > > From: Intel-wired-lan [mailto:intel-wired-lan-boun...@lists.osuosl.org] On > > Behalf Of Jeremy Ashton > > Sent: Tuesday, April 19, 2016 10:26 AM > > Cc: netdev@vger.kernel.org; intel-wired-...@lists.osuosl.org > > Subject: [Intel-wired-lan] i40e error handling LLDP messages from Arista > > switches > > > > I have been trying to get pf_ring with zc running on ubuntu 14.04. The > > thread can be found here: > > > > https://github.com/ntop/PF_RING/issues/81 > > > > Unfortunately it seems there is a bug in i40e which is carried into the > > code base for i40e_zc. > > > > $ modinfo i40e > > filename: > > /lib/modules/3.19.0-58-generic/kernel/drivers/net/ethernet/intel/i40e/i40e.ko > > version: 1.2.2-k > > license: GPL > > description: Intel(R) Ethernet Connection XL710 Network Driver > > author: Intel Corporation, <e1000-de...@lists.sourceforge.net> > > srcversion: E3DEEE00F49BBFBB8FF33A7 > > alias: pci:v00008086d00001586sv*sd*bc*sc*i* > > alias: pci:v00008086d00001585sv*sd*bc*sc*i* > > alias: pci:v00008086d00001584sv*sd*bc*sc*i* > > alias: pci:v00008086d00001583sv*sd*bc*sc*i* > > alias: pci:v00008086d00001581sv*sd*bc*sc*i* > > alias: pci:v00008086d00001580sv*sd*bc*sc*i* > > alias: pci:v00008086d0000157Fsv*sd*bc*sc*i* > > alias: pci:v00008086d00001574sv*sd*bc*sc*i* > > alias: pci:v00008086d00001572sv*sd*bc*sc*i* > > depends: ptp,vxlan > > intree: Y > > vermagic: 3.19.0-58-generic SMP mod_unload modversions > > signer: Magrathea: Glacier signing key > > sig_key: DE:B3:43:0A:26:E6:7D:3D:3B:54:B9:DD:13:25:B3:3A:46:B2:F2:DD > > sig_hashalgo: sha512 > > part: debug:Debug level (0=none,...,16=all) (int) > > > > > > I wonder if someone might offer some insight as to the next steps to > > debug/resolve this. > > > > Cheers. > > > > Can you send us the dmesg output after running i40e debugfs commands > > viz. “dump port”, “llpd get local” , “lldp get remote”, for the port that > > is showing > > this behavior? Also, do you happen to know what is the Arista side > > configuration? > > This will help us debug better. > > > > Thanks, > > Neerav