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path: root/tools/testing/selftests/bpf/test_offload.py (follow)
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2019-04-12netdevsim: move sdev specific bpf debugfs files to sdev dirJiri Pirko1-1/+1
Some netdevsim bpf debugfs files are per-sdev, yet they are defined per netdevsim instance. Move them under sdev directory. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06selftests/bpf: test reading the offloaded programJakub Kicinski1-9/+20
Test adding the offloaded program after the other program is already installed. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-02-06selftests/bpf: add test for mixing generic and offload XDPJakub Kicinski1-54/+62
Add simple sanity check for enabling generic and offload XDP, simply reuse the native and offload checks. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-02-06selftests/bpf: print traceback when test failsJakub Kicinski1-1/+4
Figuring out which exact check in test_offload.py takes more time than it should. Print the traceback (to the screen and the logs). Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-02-06selftests/bpf: fix the expected messagesJakub Kicinski1-2/+5
Recent changes added extack to program replacement path, expect extack instead of generic messages. Fixes: 01dde20ce04b ("xdp: Provide extack messages when prog attachment failed") Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-18selftests/bpf: add test for sharing objects between netdevsJakub Kicinski1-4/+142
Add tests for sharing programs and maps between different netdevs. Use netdevsim's ability to pretend multiple netdevs belong to the same "ASIC". Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-18netdevsim: associate bound programs with shared devJakub Kicinski1-2/+3
Move bound program information from netdevsim to shared sub-object, as programs will soon be shared between netdevs of the same ASIC. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-13selftests/bpf: add test for multiple programsJakub Kicinski1-0/+63
Add tests for having an XDP program attached in the driver and another one attached in HW simultaneously. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-13netdevsim: add support for simultaneous driver and hw XDPJakub Kicinski1-8/+0
Allow netdevsim to accept driver and offload attachment of XDP BPF programs at the same time. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-13xdp: factor out common program/flags handling from driversJakub Kicinski1-2/+2
Basic operations drivers perform during xdp setup and query can be moved to helpers in the core. Encapsulate program and flags into a structure and add helpers. Note that the structure is intended as the "main" program information source in the driver. Most drivers will additionally place the program pointer in their fast path or ring structures. The helpers don't have a huge impact now, but they will decrease the code duplication when programs can be installed in HW and driver at the same time. Encapsulating the basic operations in helpers will hopefully also reduce the number of changes to drivers which adopt them. Helpers could really be static inline, but they depend on definition of struct netdev_bpf which means they'd have to be placed in netdevice.h, an already 4500 line header. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-11selftests/bpf: add Error: prefix in check_extack helperJakub Kicinski1-4/+4
Currently the test only checks errors, not warnings, so save typing and prefix the extack messages with "Error:" inside the check helper. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-07-11selftests/bpf: remove duplicated word from test offloadsJakub Kicinski1-1/+1
Trivial removal of duplicated "mode" in error message. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-06-15selftests/bpf: test offloads even with BPF programs presentJakub Kicinski1-2/+10
Modern distroes increasingly make use of BPF programs. Default Ubuntu 18.04 installation boots with a number of cgroup_skb programs loaded. test_offloads.py tries to check if programs and maps are not leaked on error paths by confirming the list of programs on the system is empty between tests. Since we can no longer expect the system to have no BPF objects at boot try to remember the programs and maps present at the start, and skip those when scanning the system. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-01-25selftests/bpf: check for chain-non-0 extack messageJakub Kicinski1-3/+13
Make sure netdevsim doesn't allow offload of chains other than 0, and that it reports the expected extack message. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-25selftests/bpf: check for spurious extacks from the driverJakub Kicinski1-0/+27
Drivers should not report errors when offload is not forced. Check stdout and stderr for familiar messages when with no skip flags and with skip_hw. Check for add, replace, and destroy. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-23selftests/bpf: validate replace of TC filters is workingJakub Kicinski1-5/+50
Daniel discovered recently I broke TC filter replace (and fixed it in commit ad9294dbc227 ("bpf: fix cls_bpf on filter replace")). Add a test to make sure it never happens again. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-23selftests/bpf: check bpf verifier log buffer usage works for HW offloadQuentin Monnet1-5/+19
Make netdevsim print a message to the BPF verifier log buffer when a program is offloaded. Then use this message in hardware offload selftests to make sure that using this buffer actually prints the message to the console for eBPF hardware offload. The message is appended after the last instruction is processed with the verifying function from netdevsim. Output looks like the following: $ tc filter add dev foo ingress bpf obj sample_ret0.o \ sec .text verbose skip_sw Prog section '.text' loaded (5)! - Type: 3 - Instructions: 2 (0 over limit) - License: Verifier analysis: 0: (b7) r0 = 0 1: (95) exit [netdevsim] Hello from netdevsim! processed 2 insns, stack depth 0 "verbose" flag is required to see it in the console since netdevsim does not throw an error after printing the message. Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-23selftests/bpf: add checks on extack messages for eBPF hw offload testsQuentin Monnet1-26/+86
Add checks to test that netlink extack messages are correctly displayed in some expected error cases for eBPF offload to netdevsim with TC and XDP. iproute2 may be built without libmnl support, in which case the extack messages will not be reported. Try to detect this condition, and when enountered print a mild warning to the user and skip the extack validation. Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-18selftest/bpf: extend the offload test with map checksJakub Kicinski1-24/+182
Check map device information is reported correctly, and perform basic map operations. Check device destruction gets rid of the maps and map allocation failure path by telling netdevsim to reject map offload via DebugFS. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-31selftests/bpf: test device info reporting for bound progsJakub Kicinski1-11/+101
Check if bound programs report correct device info. Test in local namespace, in remote one, back to the local ns, remove the device and check that information is cleared. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-2/+2
Lots of overlapping changes. Also on the net-next side the XDP state management is handled more in the generic layers so undo the 'net' nfp fix which isn't applicable in net-next. Include a necessary change by Jakub Kicinski, with log message: ==================== cls_bpf no longer takes care of offload tracking. Make sure netdevsim performs necessary checks. This fixes a warning caused by TC trying to remove a filter it has not added. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-03selftests/bpf: add offload test based on netdevsimJakub Kicinski1-0/+681
Add a test of BPF offload control path interfaces based on just-added netdevsim driver. Perform various checks of both the stack and the expected driver behaviour. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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