Commit 46293b94 authored by Nathan Fontenot's avatar Nathan Fontenot Committed by David S. Miller

ibmvnic: Wait for any pending scrqs entries at driver close

When closing the ibmvnic driver we need to wait for any pending
sub crq entries to ensure they are handled.
Signed-off-by: default avatarNathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b41b83e9
......@@ -743,23 +743,6 @@ static int ibmvnic_open(struct net_device *netdev)
return rc;
}
static void disable_sub_crqs(struct ibmvnic_adapter *adapter)
{
int i;
if (adapter->tx_scrq) {
for (i = 0; i < adapter->req_tx_queues; i++)
if (adapter->tx_scrq[i])
disable_irq(adapter->tx_scrq[i]->irq);
}
if (adapter->rx_scrq) {
for (i = 0; i < adapter->req_rx_queues; i++)
if (adapter->rx_scrq[i])
disable_irq(adapter->rx_scrq[i]->irq);
}
}
static void clean_tx_pools(struct ibmvnic_adapter *adapter)
{
struct ibmvnic_tx_pool *tx_pool;
......@@ -797,15 +780,39 @@ static int __ibmvnic_close(struct net_device *netdev)
adapter->state = VNIC_CLOSING;
netif_tx_stop_all_queues(netdev);
clean_tx_pools(adapter);
disable_sub_crqs(adapter);
if (adapter->napi) {
for (i = 0; i < adapter->req_rx_queues; i++)
napi_disable(&adapter->napi[i]);
}
clean_tx_pools(adapter);
if (adapter->tx_scrq) {
for (i = 0; i < adapter->req_tx_queues; i++)
if (adapter->tx_scrq[i]->irq)
disable_irq(adapter->tx_scrq[i]->irq);
}
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++) {
int retries = 10;
while (pending_scrq(adapter, adapter->rx_scrq[i])) {
retries--;
mdelay(100);
if (retries == 0)
break;
}
if (adapter->rx_scrq[i]->irq)
disable_irq(adapter->rx_scrq[i]->irq);
}
}
adapter->state = VNIC_CLOSED;
return rc;
......
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