Is there a way to disable the lldp daemon running in the firmware?
On Tue, Apr 19, 2016 at 2:31 PM, Parikh, Neerav <neerav.par...@intel.com> wrote: > > >> -----Original Message----- >> From: Jeremy Ashton [mailto:jeremy.ash...@shopify.com] >> Sent: Tuesday, April 19, 2016 11:10 AM >> To: Parikh, Neerav <neerav.par...@intel.com> >> Cc: netdev@vger.kernel.org; intel-wired-...@lists.osuosl.org >> Subject: Re: [Intel-wired-lan] i40e error handling LLDP messages from Arista >> switches >> >> So, what commands exactly are you looking to have run? Would packet >> capture of the lldp traffic help? >> > LLDP is running in the i40e device firmware so unless you've a packet capture > on > the wire (Xgig) you may not see that in the wireshark/tshark on the host > system. > > The debugfs commands I was referring to below can help capture some > information; and for that you may need to mount the debugfs file system on > your setup. If debugfs is supported then once you've that mounted and have the > i40e driver loaded then you may see an entry named "i40e" under the mount > point. > Assuming debugfs is mounted on /sys/kernel/debug the i40e directory will be > under > /sys/kernel/debug/i40e. This directory will have entry for each PCIe device > being > managed by the i40e driver. You can select the PCIe device that maps to the > device > in question and can run the commands like: > echo "dump port" > /sys/kernel/debug/i40e/<pci-path>/command > echo "lldp get local" > /sys/kernel/debug/i40e/<pci-path>/command > echo "lldp get remote" > /sys/kernel/debug/i40e/<pci-path>/command > > The output of these commands will show up in the dmesg log. > > One another I noticed in your thread on the PF_RING bz is that you're using > inbox > Ubuntu driver. Have you tried with current upstream and seen this issue? > > Thanks, > Neerav > >> On Tue, Apr 19, 2016 at 1:53 PM, Parikh, Neerav <neerav.par...@intel.com> >> wrote: >> > 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
