From 01d9bd792d1603761dcc2644ccf4cc35a4658ab6 Mon Sep 17 00:00:00 2001 From: Thomas Falcon Date: Wed, 7 Mar 2018 17:51:46 -0600 Subject: [PATCH] ibmvnic: Reorganize device close Introduce a function to halt network operations and clean up any unused or outstanding socket buffers. Then, during device close, disable backing adapter before halting all queues and performing cleanup. This ensures all backing device operations will be stopped before the driver cleans up shared resources. Signed-off-by: Thomas Falcon Signed-off-by: David S. Miller --- drivers/net/ethernet/ibm/ibmvnic.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index fca0533..d93f286 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -1143,14 +1143,11 @@ static void clean_tx_pools(struct ibmvnic_adapter *adapter) } } -static int __ibmvnic_close(struct net_device *netdev) +static void ibmvnic_cleanup(struct net_device *netdev) { struct ibmvnic_adapter *adapter = netdev_priv(netdev); - int rc = 0; int i; - adapter->state = VNIC_CLOSING; - /* ensure that transmissions are stopped if called by do_reset */ if (adapter->resetting) netif_tx_disable(netdev); @@ -1168,10 +1165,6 @@ static int __ibmvnic_close(struct net_device *netdev) } } - rc = set_link_state(adapter, IBMVNIC_LOGICAL_LNK_DN); - if (rc) - return rc; - if (adapter->rx_scrq) { for (i = 0; i < adapter->req_rx_queues; i++) { if (adapter->rx_scrq[i]->irq) { @@ -1183,8 +1176,20 @@ static int __ibmvnic_close(struct net_device *netdev) } clean_rx_pools(adapter); clean_tx_pools(adapter); +} + +static int __ibmvnic_close(struct net_device *netdev) +{ + struct ibmvnic_adapter *adapter = netdev_priv(netdev); + int rc = 0; + + adapter->state = VNIC_CLOSING; + rc = set_link_state(adapter, IBMVNIC_LOGICAL_LNK_DN); + if (rc) + return rc; + ibmvnic_cleanup(netdev); adapter->state = VNIC_CLOSED; - return rc; + return 0; } static int ibmvnic_close(struct net_device *netdev) -- 2.7.4