From f23c4b3924d2e9382820ee677b68d42d5dd7b08b Mon Sep 17 00:00:00 2001 From: =?utf8?q?Bj=C3=B6rn=20T=C3=B6pel?= Date: Fri, 13 Dec 2019 18:51:10 +0100 Subject: [PATCH] bpf: Start using the BPF dispatcher in BPF_TEST_RUN MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit In order to properly exercise the BPF dispatcher, this commit adds BPF dispatcher usage to BPF_TEST_RUN when executing XDP programs. Signed-off-by: Björn Töpel Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20191213175112.30208-5-bjorn.topel@gmail.com --- net/bpf/test_run.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/net/bpf/test_run.c b/net/bpf/test_run.c index 85c8cbbada92..5016c538d3ce 100644 --- a/net/bpf/test_run.c +++ b/net/bpf/test_run.c @@ -15,7 +15,7 @@ #include static int bpf_test_run(struct bpf_prog *prog, void *ctx, u32 repeat, - u32 *retval, u32 *time) + u32 *retval, u32 *time, bool xdp) { struct bpf_cgroup_storage *storage[MAX_BPF_CGROUP_STORAGE_TYPE] = { NULL }; enum bpf_cgroup_storage_type stype; @@ -41,7 +41,11 @@ static int bpf_test_run(struct bpf_prog *prog, void *ctx, u32 repeat, time_start = ktime_get_ns(); for (i = 0; i < repeat; i++) { bpf_cgroup_storage_set(storage); - *retval = BPF_PROG_RUN(prog, ctx); + + if (xdp) + *retval = bpf_prog_run_xdp(prog, ctx); + else + *retval = BPF_PROG_RUN(prog, ctx); if (signal_pending(current)) { ret = -EINTR; @@ -356,7 +360,7 @@ int bpf_prog_test_run_skb(struct bpf_prog *prog, const union bpf_attr *kattr, ret = convert___skb_to_skb(skb, ctx); if (ret) goto out; - ret = bpf_test_run(prog, skb, repeat, &retval, &duration); + ret = bpf_test_run(prog, skb, repeat, &retval, &duration, false); if (ret) goto out; if (!is_l2) { @@ -413,8 +417,8 @@ int bpf_prog_test_run_xdp(struct bpf_prog *prog, const union bpf_attr *kattr, rxqueue = __netif_get_rx_queue(current->nsproxy->net_ns->loopback_dev, 0); xdp.rxq = &rxqueue->xdp_rxq; - - ret = bpf_test_run(prog, &xdp, repeat, &retval, &duration); + bpf_prog_change_xdp(NULL, prog); + ret = bpf_test_run(prog, &xdp, repeat, &retval, &duration, true); if (ret) goto out; if (xdp.data != data + XDP_PACKET_HEADROOM + NET_IP_ALIGN || @@ -422,6 +426,7 @@ int bpf_prog_test_run_xdp(struct bpf_prog *prog, const union bpf_attr *kattr, size = xdp.data_end - xdp.data; ret = bpf_test_finish(kattr, uattr, xdp.data, size, retval, duration); out: + bpf_prog_change_xdp(prog, NULL); kfree(data); return ret; } -- 2.30.2