summaryrefslogtreecommitdiffstats
path: root/tools/testing/selftests/bpf/test_xsk.sh
Commit message (Collapse)AuthorAgeFilesLines
* selftests: xsk: Implement bpf_link testMaciej Fijalkowski2021-03-301-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce a test that is supposed to verify the persistence of BPF resources based on underlying bpf_link usage. Test will: 1) create and bind two sockets on queue ids 0 and 1 2) run a traffic on queue ids 0 3) remove xsk sockets from queue 0 on both veth interfaces 4) run a traffic on queues ids 1 Running traffic successfully on qids 1 means that BPF resources were not removed on step 3). In order to make it work, change the command that creates veth pair to have the 4 queue pairs by default. Introduce the arrays of xsks and umems to ifobject struct but keep a pointers to single entities, so rest of the logic around Rx/Tx can be kept as-is. For umem handling, double the size of mmapped space and split that between the two sockets. Rename also bidi_pass to a variable 'second_step' of a boolean type as it's now used also for the test that is introduced here and it doesn't have anything in common with bi-directional testing. Drop opt_queue command line argument as it wasn't working before anyway. Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20210329224316.17793-15-maciej.fijalkowski@intel.com
* selftests/bpf: Restructure xsk selftestsCiara Loftus2021-02-261-110/+2
| | | | | | | | | | | | | | | | | | | | Prior to this commit individual xsk tests were launched from the shell script 'test_xsk.sh'. When adding a new test type, two new test configurations had to be added to this file - one for each of the supported XDP 'modes' (skb or drv). Should zero copy support be added to the xsk selftest framework in the future, three new test configurations would need to be added for each new test type. Each new test type also typically requires new CLI arguments for the xdpxceiver program. This commit aims to reduce the overhead of adding new tests, by launching the test configurations from within the xdpxceiver program itself, using simple loops. Every test is run every time the C program is executed. Many of the CLI arguments can be removed as a result. Signed-off-by: Ciara Loftus <ciara.loftus@intel.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Link: https://lore.kernel.org/bpf/20210223162304.7450-4-ciara.loftus@intel.com
* selftests/bpf: Expose and rename debug argumentCiara Loftus2021-02-261-1/+9
| | | | | | | | | | | | | | | | | | | Launching xdpxceiver with -D enables what was formerly know as 'debug' mode. Rename this mode to 'dump-pkts' as it better describes the behavior enabled by the option. New usage: ./xdpxceiver .. -D or ./xdpxceiver .. --dump-pkts Also make it possible to pass this flag to the app via the test_xsk.sh shell script like so: ./test_xsk.sh -D Signed-off-by: Ciara Loftus <ciara.loftus@intel.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20210223162304.7450-3-ciara.loftus@intel.com
* selftest/bpf: Make xsk tests less verboseMagnus Karlsson2021-02-261-6/+21
| | | | | | | | | | | | | | | | Make the xsk tests less verbose by only printing the essentials. Currently, it is hard to see if the tests passed or not due to all the printouts. Move the extra printouts to a verbose option, if further debugging is needed when a problem arises. To run the xsk tests with verbose output: ./test_xsk.sh -v Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Signed-off-by: Ciara Loftus <ciara.loftus@intel.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Link: https://lore.kernel.org/bpf/20210223162304.7450-2-ciara.loftus@intel.com
* selftests/bpf: Xsk selftests - Bi-directional Sockets - SKB, DRVWeqaar Janjua2020-12-091-0/+24
| | | | | | | | | | | | | | | | | | | | | Adds following tests: 1. AF_XDP SKB mode d. Bi-directional Sockets Configure sockets as bi-directional tx/rx sockets, sets up fill and completion rings on each socket, tx/rx in both directions. Only nopoll mode is used 2. AF_XDP DRV/Native mode d. Bi-directional Sockets * Only copy mode is supported because veth does not currently support zero-copy mode Signed-off-by: Weqaar Janjua <weqaar.a.janjua@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Yonghong Song <yhs@fb.com> Acked-by: Björn Töpel <bjorn.topel@intel.com> Link: https://lore.kernel.org/bpf/20201207215333.11586-6-weqaar.a.janjua@intel.com
* selftests/bpf: Xsk selftests - Socket Teardown - SKB, DRVWeqaar Janjua2020-12-091-0/+24
| | | | | | | | | | | | | | | | | | | | | Adds following tests: 1. AF_XDP SKB mode c. Socket Teardown Create a Tx and a Rx socket, Tx from one socket, Rx on another. Destroy both sockets, then repeat multiple times. Only nopoll mode is used 2. AF_XDP DRV/Native mode c. Socket Teardown * Only copy mode is supported because veth does not currently support zero-copy mode Signed-off-by: Weqaar Janjua <weqaar.a.janjua@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Yonghong Song <yhs@fb.com> Acked-by: Björn Töpel <bjorn.topel@intel.com> Link: https://lore.kernel.org/bpf/20201207215333.11586-5-weqaar.a.janjua@intel.com
* selftests/bpf: Xsk selftests - DRV POLL, NOPOLLWeqaar Janjua2020-12-091-0/+24
| | | | | | | | | | | | | | | | | | | Adds following tests: 2. AF_XDP DRV/Native mode Works on any netdevice with XDP_REDIRECT support, driver dependent. Processes packets before SKB allocation. Provides better performance than SKB. Driver hook available just after DMA of buffer descriptor. a. nopoll b. poll * Only copy mode is supported because veth does not currently support zero-copy mode Signed-off-by: Weqaar Janjua <weqaar.a.janjua@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Yonghong Song <yhs@fb.com> Acked-by: Björn Töpel <bjorn.topel@intel.com> Link: https://lore.kernel.org/bpf/20201207215333.11586-4-weqaar.a.janjua@intel.com
* selftests/bpf: Xsk selftests - SKB POLL, NOPOLLWeqaar Janjua2020-12-091-2/+37
| | | | | | | | | | | | | | | | | Adds following tests: 1. AF_XDP SKB mode Generic mode XDP is driver independent, used when the driver does not have support for XDP. Works on any netdevice using sockets and generic XDP path. XDP hook from netif_receive_skb(). a. nopoll - soft-irq processing b. poll - using poll() syscall Signed-off-by: Weqaar Janjua <weqaar.a.janjua@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Yonghong Song <yhs@fb.com> Acked-by: Björn Töpel <bjorn.topel@intel.com> Link: https://lore.kernel.org/bpf/20201207215333.11586-3-weqaar.a.janjua@intel.com
* selftests/bpf: Xsk selftests frameworkWeqaar Janjua2020-12-091-0/+152
This patch adds AF_XDP selftests framework under selftests/bpf. Topology: --------- ----------- ----------- | xskX | --------- | xskY | ----------- | ----------- | | | ----------- | ---------- | vethX | --------- | vethY | ----------- peer ---------- | | | namespaceX | namespaceY Prerequisites setup by script test_xsk.sh: Set up veth interfaces as per the topology shown ^^: * setup two veth interfaces and one namespace ** veth<xxxx> in root namespace ** veth<yyyy> in af_xdp<xxxx> namespace ** namespace af_xdp<xxxx> * create a spec file veth.spec that includes this run-time configuration *** xxxx and yyyy are randomly generated 4 digit numbers used to avoid conflict with any existing interface * tests the veth and xsk layers of the topology Signed-off-by: Weqaar Janjua <weqaar.a.janjua@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Yonghong Song <yhs@fb.com> Acked-by: Björn Töpel <bjorn.topel@intel.com> Link: https://lore.kernel.org/bpf/20201207215333.11586-2-weqaar.a.janjua@intel.com
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-12 09:36:42 +0000