netdev - [PATCH bpf-next v3 2/5] nfp, netdevsim: use dev_xdp_support

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Message-Id: <20190610160234.4070-3-bjorn.topel@gmail.com>
Date:   Mon, 10 Jun 2019 18:02:31 +0200
From:   Björn Töpel <bjorn.topel@...il.com>
To:     ast@...nel.org, daniel@...earbox.net, netdev@...r.kernel.org
Cc:     Björn Töpel <bjorn.topel@...el.com>,
        magnus.karlsson@...el.com, toke@...hat.com, brouer@...hat.com,
        bpf@...r.kernel.org, jakub.kicinski@...ronome.com,
        saeedm@...lanox.com
Subject: [PATCH bpf-next v3 2/5] nfp, netdevsim: use dev_xdp_support_offload() function

From: Björn Töpel <bjorn.topel@...el.com>

Make all drivers with XDP offloading support use
dev_xdp_support_offload().

Signed-off-by: Björn Töpel <bjorn.topel@...el.com>
---
 drivers/net/ethernet/netronome/nfp/nfp_net_main.c | 7 +++++++
 drivers/net/netdevsim/netdev.c                    | 4 ++++
 2 files changed, 11 insertions(+)

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
index 986464d4a206..e320cacc95e6 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
@@ -135,6 +135,13 @@ nfp_net_pf_alloc_vnic(struct nfp_pf *pf, bool needs_netdev,
 			nfp_net_free(nn);
 			return ERR_PTR(err);
 		}
+		if (nn->app && nn->app->type->xdp_offload) {
+			err = dev_xdp_support_offload(nn->dp.netdev);
+			if (err) {
+				nfp_net_free(nn);
+				return ERR_PTR(err);
+			}
+		}
 	}
 
 	pf->num_vnics++;
diff --git a/drivers/net/netdevsim/netdev.c b/drivers/net/netdevsim/netdev.c
index e5c8aa08e1cd..26e4fc12cdbe 100644
--- a/drivers/net/netdevsim/netdev.c
+++ b/drivers/net/netdevsim/netdev.c
@@ -311,6 +311,10 @@ nsim_create(struct nsim_dev *nsim_dev, struct nsim_dev_port *nsim_dev_port)
 	SET_NETDEV_DEV(dev, &ns->nsim_bus_dev->dev);
 	dev->netdev_ops = &nsim_netdev_ops;
 
+	err = dev_xdp_support_offload(dev);
+	if (err)
+		goto err_free_netdev;
+
 	rtnl_lock();
 	err = nsim_bpf_init(ns);
 	if (err)
-- 
2.20.1