[RESEND PATCH 2/3 net-next] ibmvnic: Reorganize device close
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STALE3145d
From: Thomas Falcon <hidden>
Date: 2018-03-07 23:51:55
Subsystem:
ibm power sriov virtual nic device driver, linux for powerpc (32-bit and 64-bit), networking drivers, the rest · Maintainers:
Haren Myneni, Rick Lindsley, Madhavan Srinivasan, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Revision resend of 2 in this series.
Revisions (2)
- v1 [diff vs current]
- resend current
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 <redacted> --- 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)
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1.8.3.1