diff options
author | John W. Linville <linville@tuxdriver.com> | 2009-12-28 15:09:11 -0500 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2009-12-28 15:09:11 -0500 |
commit | ea1e4b842049fcc4741096538114871a74859314 (patch) | |
tree | c2336ab480ac0fd62e0dc41b391d99c97158dc9c /drivers/net/netxen/netxen_nic_main.c | |
parent | b6ce5c33001b1dc83e6a1a6f30c5dccccea651b6 (diff) | |
parent | 92c6f8d849178582fc527aaf1e51dd37a74767d3 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
Diffstat (limited to 'drivers/net/netxen/netxen_nic_main.c')
-rw-r--r-- | drivers/net/netxen/netxen_nic_main.c | 49 |
1 files changed, 39 insertions, 10 deletions
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index e5d187fce51b..f4996846a234 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -946,8 +946,9 @@ netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter) NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS; } +/* with rtnl_lock */ static int -netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) +__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) { int err; @@ -988,14 +989,32 @@ netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) return 0; } +/* Usage: During resume and firmware recovery module.*/ + +static inline int +netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) +{ + int err = 0; + + rtnl_lock(); + if (netif_running(netdev)) + err = __netxen_nic_up(adapter, netdev); + rtnl_unlock(); + + return err; +} + +/* with rtnl_lock */ static void -netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) +__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) { if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) return; - clear_bit(__NX_DEV_UP, &adapter->state); + if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state)) + return; + smp_mb(); spin_lock(&adapter->tx_clean_lock); netif_carrier_off(netdev); netif_tx_disable(netdev); @@ -1014,6 +1033,17 @@ netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) spin_unlock(&adapter->tx_clean_lock); } +/* Usage: During suspend and firmware recovery module */ + +static inline void +netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) +{ + rtnl_lock(); + if (netif_running(netdev)) + __netxen_nic_down(adapter, netdev); + rtnl_unlock(); + +} static int netxen_nic_attach(struct netxen_adapter *adapter) @@ -1122,14 +1152,14 @@ netxen_nic_reset_context(struct netxen_adapter *adapter) netif_device_detach(netdev); if (netif_running(netdev)) - netxen_nic_down(adapter, netdev); + __netxen_nic_down(adapter, netdev); netxen_nic_detach(adapter); if (netif_running(netdev)) { err = netxen_nic_attach(adapter); if (!err) - err = netxen_nic_up(adapter, netdev); + err = __netxen_nic_up(adapter, netdev); if (err) goto done; @@ -1499,7 +1529,7 @@ static int netxen_nic_open(struct net_device *netdev) if (err) return err; - err = netxen_nic_up(adapter, netdev); + err = __netxen_nic_up(adapter, netdev); if (err) goto err_out; @@ -1519,7 +1549,7 @@ static int netxen_nic_close(struct net_device *netdev) { struct netxen_adapter *adapter = netdev_priv(netdev); - netxen_nic_down(adapter, netdev); + __netxen_nic_down(adapter, netdev); return 0; } @@ -2025,7 +2055,7 @@ static int netxen_nic_poll(struct napi_struct *napi, int budget) if ((work_done < budget) && tx_complete) { napi_complete(&sds_ring->napi); - if (netif_running(adapter->netdev)) + if (test_bit(__NX_DEV_UP, &adapter->state)) netxen_nic_enable_int(sds_ring); } @@ -2210,8 +2240,7 @@ netxen_detach_work(struct work_struct *work) netif_device_detach(netdev); - if (netif_running(netdev)) - netxen_nic_down(adapter, netdev); + netxen_nic_down(adapter, netdev); netxen_nic_detach(adapter); |