[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20221208054045.3600-2-gerhard@engleder-embedded.com>
Date: Thu, 8 Dec 2022 06:40:40 +0100
From: Gerhard Engleder <gerhard@...leder-embedded.com>
To: netdev@...r.kernel.org, bpf@...r.kernel.org
Cc: davem@...emloft.net, kuba@...nel.org, edumazet@...gle.com,
pabeni@...hat.com, ast@...nel.org, daniel@...earbox.net,
hawk@...nel.org, john.fastabend@...il.com,
Gerhard Engleder <gerhard@...leder-embedded.com>
Subject: [PATCH net-next v2 1/6] tsnep: Add adapter down state
Add adapter state with flag for down state. This flag will be used by
the XDP TX path to deny TX if adapter is down.
Signed-off-by: Gerhard Engleder <gerhard@...leder-embedded.com>
---
drivers/net/ethernet/engleder/tsnep.h | 1 +
drivers/net/ethernet/engleder/tsnep_main.c | 11 +++++++++++
2 files changed, 12 insertions(+)
diff --git a/drivers/net/ethernet/engleder/tsnep.h b/drivers/net/ethernet/engleder/tsnep.h
index f93ba48bac3f..f72c0c4da1a9 100644
--- a/drivers/net/ethernet/engleder/tsnep.h
+++ b/drivers/net/ethernet/engleder/tsnep.h
@@ -148,6 +148,7 @@ struct tsnep_adapter {
phy_interface_t phy_mode;
struct phy_device *phydev;
int msg_enable;
+ unsigned long state;
struct platform_device *pdev;
struct device *dmadev;
diff --git a/drivers/net/ethernet/engleder/tsnep_main.c b/drivers/net/ethernet/engleder/tsnep_main.c
index bf0190e1d2ea..a28fde9fb060 100644
--- a/drivers/net/ethernet/engleder/tsnep_main.c
+++ b/drivers/net/ethernet/engleder/tsnep_main.c
@@ -43,6 +43,10 @@
#define TSNEP_COALESCE_USECS_MAX ((ECM_INT_DELAY_MASK >> ECM_INT_DELAY_SHIFT) * \
ECM_INT_DELAY_BASE_US + ECM_INT_DELAY_BASE_US - 1)
+enum {
+ __TSNEP_DOWN,
+};
+
static void tsnep_enable_irq(struct tsnep_adapter *adapter, u32 mask)
{
iowrite32(mask, adapter->addr + ECM_INT_ENABLE);
@@ -1143,6 +1147,8 @@ static int tsnep_netdev_open(struct net_device *netdev)
tsnep_enable_irq(adapter, adapter->queue[i].irq_mask);
}
+ clear_bit(__TSNEP_DOWN, &adapter->state);
+
return 0;
phy_failed:
@@ -1165,6 +1171,8 @@ static int tsnep_netdev_close(struct net_device *netdev)
struct tsnep_adapter *adapter = netdev_priv(netdev);
int i;
+ set_bit(__TSNEP_DOWN, &adapter->state);
+
tsnep_disable_irq(adapter, ECM_INT_LINK);
tsnep_phy_close(adapter);
@@ -1518,6 +1526,7 @@ static int tsnep_probe(struct platform_device *pdev)
adapter->msg_enable = NETIF_MSG_DRV | NETIF_MSG_PROBE |
NETIF_MSG_LINK | NETIF_MSG_IFUP |
NETIF_MSG_IFDOWN | NETIF_MSG_TX_QUEUED;
+ set_bit(__TSNEP_DOWN, &adapter->state);
netdev->min_mtu = ETH_MIN_MTU;
netdev->max_mtu = TSNEP_MAX_FRAME_SIZE;
@@ -1614,6 +1623,8 @@ static int tsnep_remove(struct platform_device *pdev)
{
struct tsnep_adapter *adapter = platform_get_drvdata(pdev);
+ set_bit(__TSNEP_DOWN, &adapter->state);
+
unregister_netdev(adapter->netdev);
tsnep_rxnfc_cleanup(adapter);
--
2.30.2
Powered by blists - more mailing lists