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[bpf-next,v2,05/14] nfp: bpf: allow disabling TC offloads when XDP active

Message ID 1515587167-1959-6-git-send-email-quentin.monnet@netronome.com
State Accepted, archived
Delegated to: BPF Maintainers
Headers show
Series [bpf-next,v2,01/14] nfp: don't try to register XDP rxq structures on control queues | expand

Commit Message

Quentin Monnet Jan. 10, 2018, 12:25 p.m. UTC 
From: Jakub Kicinski <jakub.kicinski@netronome.com>

TC BPF offload was added first, so we used to assume that
the ethtool TC HW offload flag cannot be touched whenever
any BPF program is loaded on the NIC.  This unncessarily
limits changes to the TC flag when offloaded program is XDP.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
---
 drivers/net/ethernet/netronome/nfp/bpf/main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/net/ethernet/netronome/nfp/bpf/main.c b/drivers/net/ethernet/netronome/nfp/bpf/main.c
index 978086580ca0..50b16b6cad0b 100644
--- a/drivers/net/ethernet/netronome/nfp/bpf/main.c
+++ b/drivers/net/ethernet/netronome/nfp/bpf/main.c
@@ -191,7 +191,9 @@  static int nfp_bpf_setup_tc(struct nfp_app *app, struct net_device *netdev,
 
 static bool nfp_bpf_tc_busy(struct nfp_app *app, struct nfp_net *nn)
 {
-	return nn->dp.ctrl & NFP_NET_CFG_CTRL_BPF;
+	struct nfp_bpf_vnic *bv = nn->app_priv;
+
+	return !!bv->tc_prog;
 }
 
 static int