From: Jakub Kicinski <jakub.kicinski@netronome.com>
Date: Tue, 27 Jun 2017 00:50:23 -0700
Subject: nfp: allow converting representor's netdev into nfp_port
Patch-mainline: v4.13-rc1
Git-commit: 39ae7eb69db3a3daa3aa2f6c66e37dba1975ef00
References: bsc#1055968
Based on struct net_device_ops figure out if netdev is a nfp_repr.
Use this knowledge to convert netdev directly to nfp_port.
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>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/netronome/nfp/nfp_net_repr.c | 2 +-
drivers/net/ethernet/netronome/nfp/nfp_net_repr.h | 7 +++++++
drivers/net/ethernet/netronome/nfp/nfp_port.c | 18 +++++++++++++-----
3 files changed, 21 insertions(+), 6 deletions(-)
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c
@@ -249,7 +249,7 @@ static int nfp_repr_open(struct net_devi
return nfp_app_repr_open(repr->app, repr);
}
-static const struct net_device_ops nfp_repr_netdev_ops = {
+const struct net_device_ops nfp_repr_netdev_ops = {
.ndo_open = nfp_repr_open,
.ndo_stop = nfp_repr_stop,
.ndo_start_xmit = nfp_repr_xmit,
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.h
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.h
@@ -97,6 +97,13 @@ enum nfp_repr_type {
};
#define NFP_REPR_TYPE_MAX (__NFP_REPR_TYPE_MAX - 1)
+extern const struct net_device_ops nfp_repr_netdev_ops;
+
+static inline bool nfp_netdev_is_nfp_repr(struct net_device *netdev)
+{
+ return netdev->netdev_ops == &nfp_repr_netdev_ops;
+}
+
void nfp_repr_inc_rx_stats(struct net_device *netdev, unsigned int len);
int nfp_repr_init(struct nfp_app *app, struct net_device *netdev,
u32 cmsg_port_id, struct nfp_port *port,
--- a/drivers/net/ethernet/netronome/nfp/nfp_port.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_port.c
@@ -42,13 +42,21 @@
struct nfp_port *nfp_port_from_netdev(struct net_device *netdev)
{
- struct nfp_net *nn;
+ if (nfp_netdev_is_nfp_net(netdev)) {
+ struct nfp_net *nn = netdev_priv(netdev);
- if (WARN_ON(!nfp_netdev_is_nfp_net(netdev)))
- return NULL;
- nn = netdev_priv(netdev);
+ return nn->port;
+ }
- return nn->port;
+ if (nfp_netdev_is_nfp_repr(netdev)) {
+ struct nfp_repr *repr = netdev_priv(netdev);
+
+ return repr->port;
+ }
+
+ WARN(1, "Unknown netdev type for nfp_port\n");
+
+ return NULL;
}
struct nfp_port *