diff options
| author | Hariprasad Shenai <hariprasad@chelsio.com> | 2014-08-05 12:11:28 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-08-06 01:40:40 +0200 |
| commit | c2a198569aeab71c36156f83128916dce9561741 (patch) | |
| tree | b35603434d794268fe7a66a5273cb07f27e7aa10 | |
| parent | Merge tag 'batman-adv-for-davem' of git://git.open-mesh.org/linux-merge (diff) | |
| download | linux-c2a198569aeab71c36156f83128916dce9561741.tar.xz linux-c2a198569aeab71c36156f83128916dce9561741.zip | |
cxgb4vf: Turn off SGE RX/TX Callback Timers and interrupts in PCI shutdown routine
Need to turn off SGE RX/TX Callback Timers & interrupt in cxgb4vf PCI Shutdown
routine in order to prevent crashes during reboot/poweroff when traffic is
running.
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c | 29 |
1 files changed, 15 insertions, 14 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c index f002af190a65..d8d28e82ade1 100644 --- a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c @@ -2876,24 +2876,24 @@ static void cxgb4vf_pci_shutdown(struct pci_dev *pdev) if (!adapter) return; - /* - * Disable all Virtual Interfaces. This will shut down the + /* Disable all Virtual Interfaces. This will shut down the * delivery of all ingress packets into the chip for these * Virtual Interfaces. */ - for_each_port(adapter, pidx) { - struct net_device *netdev; - struct port_info *pi; - - if (!test_bit(pidx, &adapter->registered_device_map)) - continue; - - netdev = adapter->port[pidx]; - if (!netdev) - continue; + for_each_port(adapter, pidx) + if (test_bit(pidx, &adapter->registered_device_map)) + unregister_netdev(adapter->port[pidx]); - pi = netdev_priv(netdev); - t4vf_enable_vi(adapter, pi->viid, false, false); + /* Free up all Queues which will prevent further DMA and + * Interrupts allowing various internal pathways to drain. + */ + t4vf_sge_stop(adapter); + if (adapter->flags & USING_MSIX) { + pci_disable_msix(adapter->pdev); + adapter->flags &= ~USING_MSIX; + } else if (adapter->flags & USING_MSI) { + pci_disable_msi(adapter->pdev); + adapter->flags &= ~USING_MSI; } /* @@ -2901,6 +2901,7 @@ static void cxgb4vf_pci_shutdown(struct pci_dev *pdev) * Interrupts allowing various internal pathways to drain. */ t4vf_free_sge_resources(adapter); + pci_set_drvdata(pdev, NULL); } /* |