>-----Original Message----- >From: Vijay Agrawal [mailto:vagra...@ixiacom.com] >Sent: Sunday, February 16, 2014 10:17 PM >To: Fujinaka, Todd; e1000-de...@lists.sf.net >Subject: Re: [E1000-devel] ixgbe-3.17.3 :VLAN tagged packets >does not work when using PF-PACKET socket , > >Hi Todd, > >We are really blocked for this , can you please suggest a >fix for this for any possible workaround.
If you are using kernel < 2.6.36 edit kcompat.h and make sure you have: #define HAVE_8021P_SUPPORT Inside the section for kernels < 2.6.36. Rebuild the driver and give it a try - this should allow you to see the vlan packets. Thanks, Emil >Any suggestion on this would be really helpful. > >Thanks & Regards > Vijay Agrawal > >-----Original Message----- >From: Vijay Agrawal >Sent: 04 February 2014 18:25 >To: Fujinaka, Todd; e1000-de...@lists.sf.net >Subject: RE: [E1000-devel] ixgbe-3.17.3 :VLAN tagged packets >does not work when using PF-PACKET socket > >Hi Todd, > >Basically it's only with vlan that 10G interface is not >working and we are using the latest driver ixgbe-3.18.7. >In last mail the packet was actually sent without VLAN so >there was no issue. >I have tested it more , and the problem reduced to this : > With VLAN the 10G driver is not accepting the vlan >tagged packets unless that vlan is configured on the >physical interface, we are using PF_PACKET sockets here and >we don't want to configure VLAN physically on the >interface. No such limitation exists on 1 G driver (igbvf). > >Here I have modified the simple program to explain the >problem in some more detail. >It has two programs here , sender and receiver. > >Suppose we are sending packets on interface eth0 and >receiving on interface eth1. >Run ethereal on interface eth0 and eth1 . > >Run Receiver on one interface as ># ./receiver interface_name >Example : ># ./receiver eth1 > >Run sender on one interface as ># ./sender interface_name with_vlan (1/0) ( 1(one) will >add vlan , 0(zero) will not). >Example : ># ./sender eth0 1 > >Now you will be able to observer that on interface eth0 , >the ethereal will show that one arp request is sent with >vlan in it , but at the same time you will receive nothing >on eth1, neither on ethereal nor , receiver program will say >anything. > >Now just run sender again without vlan as #./sender eth0 0 > >Now u will observe that packet is successfully sent and >received , we can capture the packet on eth1 on ethereal and >receiver program will also dump the packet on console. > >Thanks & Regards > Vijay Agrawal > >-----Original Message----- >From: Fujinaka, Todd [mailto:todd.fujin...@intel.com] >Sent: 30 January 2014 03:25 >To: Vijay Agrawal; e1000-de...@lists.sf.net >Subject: RE: [E1000-devel] ixgbe-3.17.3 :VLAN tagged packets >does not work when using PF-PACKET socket > >We don't seem to have any issues: > >>From the sender: ># ./test eth2 > > buffer is : FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF >FFFFFFFF FFFFFFFF 11 11 11 11 11 11 08 06 00 01 >08 00 06 04 00 01 11 11 11 11 11 11 11 11 11 >11 00 00 00 00 00 00 22 22 22 22 PF_PACKET: ARP >request sent 42 bytes > >On receiver: ># tcpdump -i eth2 -xxv >tcpdump: listening on eth2, link-type EN10MB (Ethernet), >capture size 65535 bytes >06:24:56.538905 ARP, Ethernet (len 6), IPv4 (len 4), Request >who-has 34.34.34.34 tell 17.17.17.17, length 46 > 0x0000: ffff ffff ffff 1111 1111 1111 0806 0001 > 0x0010: 0800 0604 0001 1111 1111 1111 1111 1111 > 0x0020: 0000 0000 0000 2222 2222 0000 0000 0000 > 0x0030: 0000 0000 0000 0000 0000 0000 > >Todd Fujinaka >Software Application Engineer >Networking Division (ND) >Intel Corporation >todd.fujin...@intel.com >(503) 712-4565 > > >-----Original Message----- >From: Vijay Agrawal [mailto:vagra...@ixiacom.com] >Sent: Tuesday, January 28, 2014 10:07 PM >To: Fujinaka, Todd; e1000-de...@lists.sf.net >Subject: RE: [E1000-devel] ixgbe-3.17.3 :VLAN tagged packets >does not work when using PF-PACKET socket > >Hi Todd, > >Just wanted to help you to understand the issue we are >facing . >With static VLAN configured on the interface , hardware >sends the packet but vlan is stripped. >With PF_PACKET socket where we are constructing entire >Ethernet packet our self , the packet is dropped by the >hardware. > >I have attached a simple C program which uses PF_PACKET >SOCKET to send one test ARP packet with VLAN, and you can >clearly observe that packet is dropped. > >You can compile it with >Sudo make compile >Run it with > >./test "interface name (example eth0)" > >I hope it will help you to quickly identify the issue , and >may be you can suggest something to fix it or if you can >confirm if this is as expected as per design. > >Thanks & Regards > Vijay Agrawal > >-----Original Message----- >From: Vijay Agrawal >Sent: 29 January 2014 10:30 >To: 'Fujinaka, Todd'; e1000-de...@lists.sf.net >Subject: RE: [E1000-devel] ixgbe-3.17.3 :VLAN tagged packets >does not work when using PF-PACKET socket > >Hi Todd, > >Thanks a lot for the response. >Can you please explain this a bit more. >When you say you are stripping the VLAN tags , so the >packet with VLAN tag should go out without VLAN tag , but >here we observe that no packet is going out , so it look >like the hardware drops the VLAN tag packet, we see no >packet on the ethereal. Can you please explain this ? >Is there any work around solution to work with VLAN? Or with >this driver it's just not possible. > >Thanks again for your quick response . > >Thanks & Regards > Vijay Agrawal > >-----Original Message----- >From: Fujinaka, Todd [mailto:todd.fujin...@intel.com] >Sent: 29 January 2014 02:04 >To: Vijay Agrawal; e1000-de...@lists.sf.net >Subject: RE: [E1000-devel] ixgbe-3.17.3 :VLAN tagged packets >does not work when using PF-PACKET socket > >Our hardware strips VLAN tags in order to support Data >Center Bridging (I think the details are in 802.1Q for DCB). >DCB uses the same offset as VLAN tags and if we didn't strip >the tags we couldn't have interoperability between endpoints >that had DCB enabled and not enabled. > >Todd Fujinaka >Software Application Engineer >Networking Division (ND) >Intel Corporation >todd.fujin...@intel.com >(503) 712-4565 > > >-----Original Message----- >From: Vijay Agrawal [mailto:vagra...@ixiacom.com] >Sent: Monday, January 27, 2014 10:02 PM >To: e1000-de...@lists.sf.net >Subject: [E1000-devel] ixgbe-3.17.3 :VLAN tagged packets >does not work when using PF-PACKET socket > >Hi , > >We are observing a issue with this driver , we are using PF- >Packet sockets for sending receiving Ethernet packets, but >if the packet is Vlan tagged it is not sent/received on the >interface. Neither the packet is seen on the ethereal >capture. Here we are just using PF-PACKET socket and no IP >and Vlan is configured on the physical interface. >The same test if we run on 1 G node it works , so as it >seems there is some limitations with this 10G driver. >Can you please help. > >Thanks & Regards > Vijay Agrawal > > >------------------------------------------------------------ >------------------ >Managing the Performance of Cloud-Based Applications >Take advantage of what the Cloud has to offer - Avoid Common >Pitfalls. >Read the Whitepaper. >http://pubads.g.doubleclick.net/gampad/clk?id=121054471&iu=/ >4140/ostg.clktrk >_______________________________________________ >E1000-devel mailing list >E1000-devel@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/e1000-devel >To learn more about Intel® Ethernet, visit >http://communities.intel.com/community/wired ------------------------------------------------------------------------------ Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121054471&iu=/4140/ostg.clktrk _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
