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2018-10-11vnet: complete the fix for l3_hdr_offset calculation for single loop ↵Andrew Yourtchenko1-1/+1
fastpass case (VPP-1444) 20e6d36b has moved the calculation of the l3_hdr_offset into the determine_next_node() function, with the assumption that the current_data in the buffer is at the L3 header. This is not the case for the single loop fastpath, where the vlib_buffer_advance() call is made after the call to determine_next_node(), as a day1 behavior. As a result - that path incorrectly sets the l3_hdr_offset. Solution: move the vlib_buffer_advance() call to before determine_next_node() Change-Id: Id5eaa084c43fb6564f8239df4a0b3dc0412b15de Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2018-10-09vnet: ethernet-input incorrectly sets l3_hdr_offset in some casesAndrew Yourtchenko1-26/+26
The issue surfaced when developing the tap GSO code, with an iteration where output path is reliant on vnet_buffer (b0)->l3_hdr_offset being set correctly in the input path, during performance testing. Adding a workaround in the TX path shows that the issue surfaces only for relatively few packets during the test (about 100 out of 600000). Analysis shows the issue arises if the ethernet-input is handling two untagged packets with different sw_if_index values - then the accelerated path punts to slow path, before the setting of the l2.l2_len values is done, thus resulting in them being 0, and l3_hdr_offset being the same as l2_hdr_offset, wreaking havoc on TX path. The solution is to move the l2_hdr_offset calculation into a place where it is done for all the packets, and move the l3_hdr_offset calculation into the determine_next_node() function - as that function is also the one setting the special-case l2.l2_len value for tagged packets and moving the current_data for the L2 case. Change-Id: If728c7715e011930c1887691188c98055bddde67 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2018-10-02Enabled untagged vs default functionalityMike Bly1-2/+1
Removed 0-tags attribute for default-sub-if config Moved default-sub-if check before untagged Change-Id: I68043445aa2f79846e0743567b9015257fd87f8d Signed-off-by: Mike Bly <mbly@ciena.com>
2018-09-12fix missing extern in vnet/ethernet/node.cDamjan Marion1-1/+1
Change-Id: Idabdd1112ba7e390a7b14a83cc7fbd198c8754df Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-09-10new multiversioning on ethernet input nodesDamjan Marion1-34/+16
Change-Id: I1aa196756b3ff4969b8ff2f117778d2cd87d6dd5 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-07-11avoid using thread local storage for thread indexDamjan Marion1-1/+1
It is cheaper to get thread index from vlib_main_t if available... Change-Id: I4582e160d06d9d7fccdc54271912f0635da79b50 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-07-07PipesNeale Ranns1-1/+10
A pipe resembles a unix pipe. Each end of the pipe is a full VPP interface. pipes can be used for e.g. packet recirculation, inter-BD, etc. Change-Id: I185bb9fb43dd233ff45da63ac1b85ae2e1ceca16 Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
2018-04-19Minor optimzation/cleanup to ethernet-input nodeJohn Lo1-5/+5
Change-Id: Ibf3ef82950f50b746394a731cd2e7cba1cd16ec4 Signed-off-by: John Lo <loj@cisco.com>
2018-02-19Use neutral vector code for ethernet_frame_is_taggedDamjan Marion1-25/+2
Also it removes ethernet_frame_is_any_taged implemebntation which seems to be equally costly compared to two invocations of ethernet_frame_is_tagged. Change-Id: If1c95f8267cd34b807ec07e0d675cbd0db2fdf9f Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-02-06Fix clang implicit conversion errorsDamjan Marion1-7/+8
Change-Id: I1771a1cca2a4bc394677b2a18f14c47f0633fa77 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-01-17Fix checksum offload sssue caused by overwriten lX_hdr_offsetDamjan Marion1-2/+2
This happens when 2 packets belonging to 2 different interfaces hit dual loop in the ethernet-input. Packets go to slow path which doesn't set l2 hdr offset correctly for l3 packets. Change-Id: I61d87c079db0b2e21f8af6f6b600bff14030535d Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-12-04vnet: set vnet_buffer l2_hdr_offset and l3_hdr_offsetSteven1-0/+22
Changes made in ethernet_input to set l2_hdr_offset,l3_hdr_offset, and their corresponding flags. Please note that ethernet_input, as a critical DP, incurs a few extra cpu cycles due to this patch, but for a worthy cause. Change-Id: Ie9ae352ea62959d2779ebcca98a1898e3d9e1d6f Signed-off-by: Steven <sluong@cisco.com>
2017-08-01P2P EthernetPavel Kotucek1-1/+16
Change-Id: Idb97e573961b3bc2acdeef77582314590795f8c3 Signed-off-by: Pavel Kotucek <pkotucek@cisco.com>
2017-07-14Introduce l{2,3,4}_hdr_offset fields in the buffer metadataDamjan Marion1-14/+9
To save space in the first cacheline following is changed: - total_length_not_including_first_buffer moved to the 2nd cacheline. This field is used only when VLIB_BUFFER_TOTAL_LENGTH_VALID and VLIB_BUFFER_NEXT_PRESENT are both set. - free_list_index is now stored in 4bits inside flags, which allows up to 16 free lists. In case we need more we can store index in the 2nd cachelin Change-Id: Ic8521350819391af470d31d3fa1013e67ecb7681 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-07-13Fix typo for non x86 platforms.Christophe Fontaine1-1/+1
Change-Id: Ic31b388cb972fb5f8a3fc42a5412401c3ee3e487 Signed-off-by: Christophe Fontaine <christophe.fontaine@enea.com>
2017-07-07ETH:optimized double is_tagged checkEyal Bari1-2/+24
a double version of is_tagged, uses "free lanes" in _mm_cmpeq_epi16 to check a second tag this code was not yet tested for performance Change-Id: I640017e1cc75c85a33d196ee911a7e4a512d9849 Signed-off-by: Eyal Bari <ebari@cisco.com>
2017-06-14ETH:fix l2_len/vlan count mismatch for > 2 tagsEyal Bari1-1/+4
l2_len was not updated for the third tag as the ethernet node retracts by the vlan count after parse_header (using ethernet_buffer_header_size) it ends up pointing before the ethernet header + some minor cleanups Change-Id: I4ccaedd33928912e5d837376f146503b27071741 Signed-off-by: Eyal Bari <ebari@cisco.com>
2017-06-06Packets recieved on VLAN-0 map to the main interfaceNeale Ranns1-0/+2
Change-Id: I21b1ad39275495d4d006023b58f630a213445854 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-05-06Fix mac check issue for vitual tunnel interface with no mac addressHongjun Ni1-0/+3
Change-Id: I6ce21317fcaa25781199f4329be815f076ab8b09 Signed-off-by: Hongjun Ni <hongjun.ni@intel.com>
2017-04-07MPLS McastNeale Ranns1-2/+2
1 - interface-DPO Used in the Data-plane to change a packet's input interface 2 - MPLS multicast FIB entry Same as a unicast entry but it links to a replicate not a load-balance DPO 3 - Multicast MPLS tunnel Update MPLS tunnels to use a FIB path-list to describe the endpoint[s]. Use the path-list to generate the forwarding chain (DPOs) to link to . 4 - Resolve a path via a local label (of an mLDP LSP) For IP multicast entries to use an LSP in the replication list, we need to decribe the 'resolve-via-label' where the label is that of a multicast LSP. 5 - MPLS disposition path sets RPF-ID For a interface-less LSP (i.e. mLDP not RSVP-TE) at the tail of the LSP we still need to perform an RPF check. An MPLS disposition DPO performs the MPLS pop validation checks and sets the RPF-ID in the packet. 6 - RPF check with per-entry RPF-ID An RPF-ID is used instead of a real interface SW if index in the case the IP traffic arrives from an LSP that does not have an associated interface. Change-Id: Ib92e177be919147bafeb599729abf3d1abc2f4b3 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-04-06Use thread local storage for thread indexDamjan Marion1-7/+7
This patch deprecates stack-based thread identification, Also removes requirement that thread stacks are adjacent. Finally, possibly annoying for some folks, it renames all occurences of cpu_index and cpu_number with thread index. Using word "cpu" is misleading here as thread can be migrated ti different CPU, and also it is not related to linux cpu index. Change-Id: I68cdaf661e701d2336fc953dcb9978d10a70f7c1 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-03-13Add MAC address check in ethernet-input node if interface in L3 modeJohn Lo1-6/+17
Interface can be in promiscuous mode if more than one of its sub- interface is in L2 mode. In promiscuous mode, L3 interface need to verify DMAC of packet to match that of the interface and drop if not. This check was done on sub-interface only and now also added to main interface path. Fix incorrect MAC addresses in the flow-per-pkt plugin test, which caused it to fail. Fix MAC address usage in BFD tests. Change-Id: I12a17ec05c7ab298ad10d400c90d082c97eca521 Signed-off-by: John Lo <loj@cisco.com> Signed-off-by: Klement Sekera <ksekera@cisco.com>
2016-12-28Reorganize source tree to use single autotools instanceDamjan Marion1-0/+1368
Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23 Signed-off-by: Damjan Marion <damarion@cisco.com>