From: Jakub Kicinski <jakub.kicinski@netronome.com>
Date: Mon, 22 May 2017 17:59:34 +0000 (-0700)
Subject: nfp: refresh port state before reporting autonegotiation
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1876749da87500c7228f91398e04291389a18634;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

nfp: refresh port state before reporting autonegotiation

State of autonegotiation may have changed but is not yet refreshed.
Make sure ethtool respects the NFP_PORT_CHANGED flag when looking
at autoneg.

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>
---

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
index 23f9ea0f8982..84fdbc4b835b 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
@@ -209,7 +209,7 @@ nfp_net_get_link_ksettings(struct net_device *netdev,
 	cmd->base.duplex = DUPLEX_UNKNOWN;
 
 	port = nfp_port_from_netdev(netdev);
-	eth_port = __nfp_port_get_eth_port(port);
+	eth_port = nfp_port_get_eth_port(port);
 	if (eth_port)
 		cmd->base.autoneg = eth_port->aneg != NFP_ANEG_DISABLED ?
 			AUTONEG_ENABLE : AUTONEG_DISABLE;
@@ -219,14 +219,6 @@ nfp_net_get_link_ksettings(struct net_device *netdev,
 
 	/* Use link speed from ETH table if available, otherwise try the BAR */
 	if (eth_port) {
-		int err;
-
-		if (test_bit(NFP_PORT_CHANGED, &port->flags)) {
-			err = nfp_net_refresh_eth_port(port);
-			if (err)
-				return err;
-		}
-
 		cmd->base.port = eth_port->port_type;
 		cmd->base.speed = eth_port->speed;
 		cmd->base.duplex = DUPLEX_FULL;
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_port.c b/drivers/net/ethernet/netronome/nfp/nfp_port.c
index 295db04ccb05..3beed4167e2f 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_port.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_port.c
@@ -58,6 +58,18 @@ struct nfp_eth_table_port *__nfp_port_get_eth_port(struct nfp_port *port)
 	return port->eth_port;
 }
 
+struct nfp_eth_table_port *nfp_port_get_eth_port(struct nfp_port *port)
+{
+	if (!__nfp_port_get_eth_port(port))
+		return NULL;
+
+	if (test_bit(NFP_PORT_CHANGED, &port->flags))
+		if (nfp_net_refresh_eth_port(port))
+			return NULL;
+
+	return __nfp_port_get_eth_port(port);
+}
+
 int
 nfp_port_get_phys_port_name(struct net_device *netdev, char *name, size_t len)
 {
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_port.h b/drivers/net/ethernet/netronome/nfp/nfp_port.h
index 471fff1fc58f..641617de41cc 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_port.h
+++ b/drivers/net/ethernet/netronome/nfp/nfp_port.h
@@ -86,6 +86,7 @@ struct nfp_port {
 
 struct nfp_port *nfp_port_from_netdev(struct net_device *netdev);
 struct nfp_eth_table_port *__nfp_port_get_eth_port(struct nfp_port *port);
+struct nfp_eth_table_port *nfp_port_get_eth_port(struct nfp_port *port);
 
 int
 nfp_port_get_phys_port_name(struct net_device *netdev, char *name, size_t len);