Hello Vijay, I ran a quick test on my system between a 2.6.32 and 3.3.x kernels and I can reproduce the vlan packets not passing on 2.6.32, but it does resolve with HAVE_8021P_SUPPORT defined (as expected). I will look into 2.6.16 as it's possible we take a different code path and let you know if I see something.
Thanks, Emil >-----Original Message----- >From: Vijay Agrawal [mailto:vagra...@ixiacom.com] >Sent: Friday, February 28, 2014 4:06 AM >To: Tantilov, Emil S; 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, > >We have linux version linux-2.6.16.60 , we have made the >changes in the code to make HAVE_8021P_SUPPORT defined in >the code for kcompat.h , the interfaces are in promisc mode >. >But the issue is still there. > >Please suggest what else we can try. > >Thanks & Regards > Vijay Agrawal > >-----Original Message----- >From: Tantilov, Emil S [mailto:emil.s.tanti...@intel.com] >Sent: 27 February 2014 00:52 >To: Vijay Agrawal; 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 , > >>-----Original Message----- >>From: Vijay Agrawal [mailto:vagra...@ixiacom.com] >>Sent: Wednesday, February 26, 2014 7:37 AM >>To: Tantilov, Emil S; 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 , >> >>We tried this but that did not help. We still can't capture > >By "this" do you mean you defined HAVE_8021P_SUPPORT in >kcompat.h for the kernel that you are using? Did you do this >on both ends and the receiving interface is in promisc mode? > >>Ethernet packets with VLAN tag in it. Our requirement is to >be able to >>receive VLAN tagged Ethernet packets with PF PACKET socket >even if >>that particular vlan is not configured on the interface via >"vconfig" >>utility. This is > >You should be able to see the vlan packets even if the vlan >is not configured on the interface and stripping is >disabled. > >Which kernel version are you using? > >Thanks, >Emil > >>exactly the behaviour that we got from 1G driver . Now when >we try to >>run the same software with 10G node because of this issue >this does not >>work. >> >>Please suggest if any other possible option we can try and >or you can >>fix something in the driver. >> >>Thanks & Regards >> Vijay Agrawal >> >>-----Original Message----- >>From: Tantilov, Emil S [mailto:emil.s.tanti...@intel.com] >>Sent: 19 February 2014 00:13 >>To: Vijay Agrawal; 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 , >> >>>-----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 ------------------------------------------------------------------------------ Flow-based real-time traffic analytics software. 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