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Message-ID: <8b586b4d19b9473d0678dcd012c54bc1b87a5c3d.1694443665.git.ecree.xilinx@gmail.com>
Date: Tue, 12 Sep 2023 15:21:36 +0100
From: <edward.cree@....com>
To: <linux-net-drivers@....com>, <davem@...emloft.net>, <kuba@...nel.org>,
<edumazet@...gle.com>, <pabeni@...hat.com>
CC: Edward Cree <ecree.xilinx@...il.com>, <netdev@...r.kernel.org>,
<habetsm.xilinx@...il.com>, <sudheer.mogilappagari@...el.com>,
<jdamato@...tly.com>, <andrew@...n.ch>, <mw@...ihalf.com>,
<linux@...linux.org.uk>, <sgoutham@...vell.com>, <gakula@...vell.com>,
<sbhatta@...vell.com>, <hkelam@...vell.com>, <saeedm@...dia.com>,
<leon@...nel.org>, <hkallweit1@...il.com>, <nic_swsd@...ltek.com>,
<jiawenwu@...stnetic.com>, <mengyuanlou@...-swift.com>
Subject: [RFC PATCH v3 net-next 1/7] net: move ethtool-related netdev state into its own struct
From: Edward Cree <ecree.xilinx@...il.com>
net_dev->ethtool is a pointer to new struct ethtool_netdev_state, which
currently contains only the wol_enabled field.
Suggested-by: Jakub Kicinski <kuba@...nel.org>
Signed-off-by: Edward Cree <ecree.xilinx@...il.com>
---
RealTek and WangXun maintainers, I only CCed you on this patch rather than
the whole series, to avoid spamming you with a discussion that's likely
not to be relevant to you. Hope that's okay.
drivers/net/ethernet/realtek/r8169_main.c | 4 ++--
drivers/net/ethernet/wangxun/ngbe/ngbe_ethtool.c | 4 ++--
drivers/net/ethernet/wangxun/ngbe/ngbe_main.c | 2 +-
drivers/net/phy/phy.c | 2 +-
drivers/net/phy/phy_device.c | 5 +++--
drivers/net/phy/phylink.c | 2 +-
include/linux/ethtool.h | 8 ++++++++
include/linux/netdevice.h | 7 ++++---
net/core/dev.c | 4 ++++
net/ethtool/ioctl.c | 2 +-
net/ethtool/wol.c | 2 +-
11 files changed, 28 insertions(+), 14 deletions(-)
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 6351a2dc13bc..fe69416f2a93 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -1455,7 +1455,7 @@ static void __rtl8169_set_wol(struct rtl8169_private *tp, u32 wolopts)
if (tp->dash_type == RTL_DASH_NONE) {
rtl_set_d3_pll_down(tp, !wolopts);
- tp->dev->wol_enabled = wolopts ? 1 : 0;
+ tp->dev->ethtool->wol_enabled = wolopts ? 1 : 0;
}
}
@@ -5321,7 +5321,7 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
rtl_set_d3_pll_down(tp, true);
} else {
rtl_set_d3_pll_down(tp, false);
- dev->wol_enabled = 1;
+ dev->ethtool->wol_enabled = 1;
}
jumbo_max = rtl_jumbo_max(tp);
diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe_ethtool.c b/drivers/net/ethernet/wangxun/ngbe/ngbe_ethtool.c
index ec0e869e9aac..091ee3d3e74d 100644
--- a/drivers/net/ethernet/wangxun/ngbe/ngbe_ethtool.c
+++ b/drivers/net/ethernet/wangxun/ngbe/ngbe_ethtool.c
@@ -34,9 +34,9 @@ static int ngbe_set_wol(struct net_device *netdev,
wx->wol = 0;
if (wol->wolopts & WAKE_MAGIC)
wx->wol = WX_PSR_WKUP_CTL_MAG;
- netdev->wol_enabled = !!(wx->wol);
+ netdev->ethtool->wol_enabled = !!(wx->wol);
wr32(wx, WX_PSR_WKUP_CTL, wx->wol);
- device_set_wakeup_enable(&pdev->dev, netdev->wol_enabled);
+ device_set_wakeup_enable(&pdev->dev, netdev->ethtool->wol_enabled);
return 0;
}
diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c b/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
index 2b431db6085a..6752f8d04d9c 100644
--- a/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
+++ b/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
@@ -636,7 +636,7 @@ static int ngbe_probe(struct pci_dev *pdev,
if (wx->wol_hw_supported)
wx->wol = NGBE_PSR_WKUP_CTL_MAG;
- netdev->wol_enabled = !!(wx->wol);
+ netdev->ethtool->wol_enabled = !!(wx->wol);
wr32(wx, NGBE_PSR_WKUP_CTL, wx->wol);
device_set_wakeup_enable(&pdev->dev, wx->wol);
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index df54c137c5f5..6eeec338dfbf 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -1283,7 +1283,7 @@ static irqreturn_t phy_interrupt(int irq, void *phy_dat)
if (netdev) {
struct device *parent = netdev->dev.parent;
- if (netdev->wol_enabled)
+ if (netdev->ethtool->wol_enabled)
pm_system_wakeup();
else if (device_may_wakeup(&netdev->dev))
pm_wakeup_dev_event(&netdev->dev, 0, true);
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 2ce74593d6e4..62afc0424fbd 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -285,7 +285,7 @@ static bool mdio_bus_phy_may_suspend(struct phy_device *phydev)
if (!netdev)
goto out;
- if (netdev->wol_enabled)
+ if (netdev->ethtool->wol_enabled)
return false;
/* As long as not all affected network drivers support the
@@ -1859,7 +1859,8 @@ int phy_suspend(struct phy_device *phydev)
return 0;
phy_ethtool_get_wol(phydev, &wol);
- phydev->wol_enabled = wol.wolopts || (netdev && netdev->wol_enabled);
+ phydev->wol_enabled = wol.wolopts ||
+ (netdev && netdev->ethtool->wol_enabled);
/* If the device has WOL enabled, we cannot suspend the PHY */
if (phydev->wol_enabled && !(phydrv->flags & PHY_ALWAYS_CALL_SUSPEND))
return -EBUSY;
diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 0d7354955d62..b808ba1197c3 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -2172,7 +2172,7 @@ void phylink_suspend(struct phylink *pl, bool mac_wol)
{
ASSERT_RTNL();
- if (mac_wol && (!pl->netdev || pl->netdev->wol_enabled)) {
+ if (mac_wol && (!pl->netdev || pl->netdev->ethtool->wol_enabled)) {
/* Wake-on-Lan enabled, MAC handling */
mutex_lock(&pl->state_mutex);
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index 62b61527bcc4..8aeefc0b4e10 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -935,6 +935,14 @@ int ethtool_virtdev_set_link_ksettings(struct net_device *dev,
const struct ethtool_link_ksettings *cmd,
u32 *dev_speed, u8 *dev_duplex);
+/**
+ * struct ethtool_netdev_state - per-netdevice state for ethtool features
+ * @wol_enabled: Wake-on-LAN is enabled
+ */
+struct ethtool_netdev_state {
+ unsigned wol_enabled:1;
+};
+
struct phy_device;
struct phy_tdr_config;
struct phy_plca_cfg;
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 0896aaa91dd7..efedfac436ad 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -79,6 +79,7 @@ struct xdp_buff;
struct xdp_frame;
struct xdp_metadata_ops;
struct xdp_md;
+struct ethtool_netdev_state;
typedef u32 xdp_features_t;
@@ -2011,8 +2012,6 @@ enum netdev_ml_priv_type {
* switch driver and used to set the phys state of the
* switch port.
*
- * @wol_enabled: Wake-on-LAN is enabled
- *
* @threaded: napi threaded mode is enabled
*
* @net_notifier_list: List of per-net netdev notifier block
@@ -2024,6 +2023,7 @@ enum netdev_ml_priv_type {
* @udp_tunnel_nic_info: static structure describing the UDP tunnel
* offload capabilities of the device
* @udp_tunnel_nic: UDP tunnel offload state
+ * @ethtool: ethtool related state
* @xdp_state: stores info on attached XDP BPF programs
*
* @nested_level: Used as a parameter of spin_lock_nested() of
@@ -2383,7 +2383,6 @@ struct net_device {
struct sfp_bus *sfp_bus;
struct lock_class_key *qdisc_tx_busylock;
bool proto_down;
- unsigned wol_enabled:1;
unsigned threaded:1;
struct list_head net_notifier_list;
@@ -2395,6 +2394,8 @@ struct net_device {
const struct udp_tunnel_nic_info *udp_tunnel_nic_info;
struct udp_tunnel_nic *udp_tunnel_nic;
+ struct ethtool_netdev_state *ethtool;
+
/* protected by rtnl_lock */
struct bpf_xdp_entity xdp_state[__MAX_XDP_MODE];
diff --git a/net/core/dev.c b/net/core/dev.c
index ccff2b6ef958..bb3841371349 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -10747,6 +10747,9 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
dev->real_num_rx_queues = rxqs;
if (netif_alloc_rx_queues(dev))
goto free_all;
+ dev->ethtool = kzalloc(sizeof(*dev->ethtool), GFP_KERNEL_ACCOUNT);
+ if (!dev->ethtool)
+ goto free_all;
strcpy(dev->name, name);
dev->name_assign_type = name_assign_type;
@@ -10797,6 +10800,7 @@ void free_netdev(struct net_device *dev)
return;
}
+ kfree(dev->ethtool);
netif_free_tx_queues(dev);
netif_free_rx_queues(dev);
diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c
index 0b0ce4f81c01..de78b24fffc9 100644
--- a/net/ethtool/ioctl.c
+++ b/net/ethtool/ioctl.c
@@ -1461,7 +1461,7 @@ static int ethtool_set_wol(struct net_device *dev, char __user *useraddr)
if (ret)
return ret;
- dev->wol_enabled = !!wol.wolopts;
+ dev->ethtool->wol_enabled = !!wol.wolopts;
ethtool_notify(dev, ETHTOOL_MSG_WOL_NTF, NULL);
return 0;
diff --git a/net/ethtool/wol.c b/net/ethtool/wol.c
index 0ed56c9ac1bc..a39d8000d808 100644
--- a/net/ethtool/wol.c
+++ b/net/ethtool/wol.c
@@ -137,7 +137,7 @@ ethnl_set_wol(struct ethnl_req_info *req_info, struct genl_info *info)
ret = dev->ethtool_ops->set_wol(dev, &wol);
if (ret)
return ret;
- dev->wol_enabled = !!wol.wolopts;
+ dev->ethtool->wol_enabled = !!wol.wolopts;
return 1;
}
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