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| author | Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> | 2008-12-26 01:36:05 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-12-26 01:36:05 -0800 |
| commit | 7adf1525befb5606462431eb1a4ea40ded5baef4 (patch) | |
| tree | 5809dfe0f6d7335655d9eaacaddad93459e18460 | |
| parent | d7b06636be162d3f74c9ce5d6d0d9ea4e5d362c8 (diff) | |
| download | linux-3.10-7adf1525befb5606462431eb1a4ea40ded5baef4.tar.gz linux-3.10-7adf1525befb5606462431eb1a4ea40ded5baef4.tar.bz2 linux-3.10-7adf1525befb5606462431eb1a4ea40ded5baef4.zip | |
ixgbe: Fix NAPI enable/disable path when using DCB
This change allows DCB mode to change the number of queues, and presumably
the number of NAPI instances, safely.
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_dcb_nl.c | 4 | ||||
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_main.c | 11 |
2 files changed, 10 insertions, 5 deletions
diff --git a/drivers/net/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ixgbe/ixgbe_dcb_nl.c index 8ac639d0da0..4129976953f 100644 --- a/drivers/net/ixgbe/ixgbe_dcb_nl.c +++ b/drivers/net/ixgbe/ixgbe_dcb_nl.c @@ -148,6 +148,7 @@ static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state) netdev->netdev_ops->ndo_stop(netdev); ixgbe_reset_interrupt_capability(adapter); ixgbe_napi_del_all(adapter); + INIT_LIST_HEAD(&netdev->napi_list); kfree(adapter->tx_ring); kfree(adapter->rx_ring); adapter->tx_ring = NULL; @@ -157,7 +158,6 @@ static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state) adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED; adapter->flags |= IXGBE_FLAG_DCB_ENABLED; ixgbe_init_interrupt_scheme(adapter); - ixgbe_napi_add_all(adapter); if (netif_running(netdev)) netdev->netdev_ops->ndo_open(netdev); } else { @@ -167,6 +167,7 @@ static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state) netdev->netdev_ops->ndo_stop(netdev); ixgbe_reset_interrupt_capability(adapter); ixgbe_napi_del_all(adapter); + INIT_LIST_HEAD(&netdev->napi_list); kfree(adapter->tx_ring); kfree(adapter->rx_ring); adapter->tx_ring = NULL; @@ -176,7 +177,6 @@ static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state) adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED; adapter->flags |= IXGBE_FLAG_RSS_ENABLED; ixgbe_init_interrupt_scheme(adapter); - ixgbe_napi_add_all(adapter); if (netif_running(netdev)) netdev->netdev_ops->ndo_open(netdev); } diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index b6ae9f674ba..acef3c65cd2 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -2064,6 +2064,8 @@ static int ixgbe_up_complete(struct ixgbe_adapter *adapter) else ixgbe_configure_msi_and_legacy(adapter); + ixgbe_napi_add_all(adapter); + clear_bit(__IXGBE_DOWN, &adapter->state); ixgbe_napi_enable_all(adapter); @@ -3176,8 +3178,13 @@ static int ixgbe_close(struct net_device *netdev) void ixgbe_napi_add_all(struct ixgbe_adapter *adapter) { int q_idx, q_vectors; + struct net_device *netdev = adapter->netdev; int (*poll)(struct napi_struct *, int); + /* check if we already have our netdev->napi_list populated */ + if (&netdev->napi_list != netdev->napi_list.next) + return; + if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { poll = &ixgbe_clean_rxonly; /* Only enable as many vectors as we have rx queues. */ @@ -3271,6 +3278,7 @@ static int ixgbe_suspend(struct pci_dev *pdev, pm_message_t state) } ixgbe_reset_interrupt_capability(adapter); ixgbe_napi_del_all(adapter); + INIT_LIST_HEAD(&netdev->napi_list); kfree(adapter->tx_ring); kfree(adapter->rx_ring); @@ -4212,8 +4220,6 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev, netif_carrier_off(netdev); netif_tx_stop_all_queues(netdev); - ixgbe_napi_add_all(adapter); - strcpy(netdev->name, "eth%d"); err = register_netdev(netdev); if (err) @@ -4299,7 +4305,6 @@ static void __devexit ixgbe_remove(struct pci_dev *pdev) pci_release_regions(pdev); DPRINTK(PROBE, INFO, "complete\n"); - ixgbe_napi_del_all(adapter); kfree(adapter->tx_ring); kfree(adapter->rx_ring); |