diff options
| author | Florian Westphal <fw@strlen.de> | 2026-06-12 11:22:08 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-06-13 10:29:39 -0700 |
| commit | 07ca2ab4ce8484a8e743c4a2c63a03b5c437d06d (patch) | |
| tree | 571642cfd9acb5384dccfc452c4b8795925926d0 /drivers/net/netdevsim | |
| parent | 5184fd34214fffa6316cee4f90179cf43d956c39 (diff) | |
| download | linux-next-07ca2ab4ce8484a8e743c4a2c63a03b5c437d06d.tar.gz linux-next-07ca2ab4ce8484a8e743c4a2c63a03b5c437d06d.zip | |
netdevsim: tc: allow to test nf_tables offload control plane code
The actual 'offload' is phony, all commands are ignored: this is only
useful to test control plane code.
Tag the existing callback to permit error injection to test rollback/abort
code in nf_tables. This is also for fuzzers - the fault injection
framework allows probabilistic error insertion.
Signed-off-by: Florian Westphal <fw@strlen.de>
Link: https://patch.msgid.link/20260612092209.11966-2-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/netdevsim')
| -rw-r--r-- | drivers/net/netdevsim/bpf.c | 6 | ||||
| -rw-r--r-- | drivers/net/netdevsim/tc.c | 20 |
2 files changed, 19 insertions, 7 deletions
diff --git a/drivers/net/netdevsim/bpf.c b/drivers/net/netdevsim/bpf.c index 8eebcc933ddb..16aa88278398 100644 --- a/drivers/net/netdevsim/bpf.c +++ b/drivers/net/netdevsim/bpf.c @@ -123,12 +123,6 @@ int nsim_bpf_setup_tc_block_cb(enum tc_setup_type type, struct netdevsim *ns = cb_priv; struct bpf_prog *oldprog; - if (type != TC_SETUP_CLSBPF) { - NSIM_EA(cls_bpf->common.extack, - "only offload of BPF classifiers supported"); - return -EOPNOTSUPP; - } - if (!tc_cls_can_offload_and_chain0(ns->netdev, &cls_bpf->common)) return -EOPNOTSUPP; diff --git a/drivers/net/netdevsim/tc.c b/drivers/net/netdevsim/tc.c index 8f013a5895a2..a415e02a6df1 100644 --- a/drivers/net/netdevsim/tc.c +++ b/drivers/net/netdevsim/tc.c @@ -9,7 +9,22 @@ static int nsim_setup_tc_block_cb(enum tc_setup_type type, void *type_data, void *cb_priv) { - return nsim_bpf_setup_tc_block_cb(type, type_data, cb_priv); + struct flow_cls_common_offload *common = type_data; + int err = 0; + + switch (type) { + case TC_SETUP_CLSBPF: + err = nsim_bpf_setup_tc_block_cb(type, type_data, cb_priv); + break; + case TC_SETUP_CLSFLOWER: + break; + default: + NSIM_EA(common->extack, "offload type not supported"); + err = -EOPNOTSUPP; + break; + } + + return err; } static void nsim_taprio_stats(struct tc_taprio_qopt_stats *stats) @@ -73,7 +88,10 @@ nsim_setup_tc(struct net_device *dev, enum tc_setup_type type, void *type_data) &nsim_block_cb_list, nsim_setup_tc_block_cb, ns, ns, true); + case TC_SETUP_FT: + return 0; default: return -EOPNOTSUPP; } } +ALLOW_ERROR_INJECTION(nsim_setup_tc, ERRNO); |