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authorTodd Fujinaka <todd.fujinaka@intel.com>2015-08-07 17:27:39 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2015-08-18 14:06:07 -0700
commitceee3450b3a85db05a107d54fbea031c77d30401 (patch)
tree6a8675721576a9b2a6c75fb8ed44d8f04bc84ef4
parentfae5ecaee3e6265c2aec29ac238ccc29c6f11fc3 (diff)
igb: make sure SR-IOV init uses the right number of queues
Recent changes to igb_probe_vfs() could lead to the PF holding onto all of the queues. Reorder igb_probe_vfs() to be before gb_init_queue_configuration() and add some more error checking. Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
-rw-r--r--drivers/net/ethernet/intel/igb/igb_main.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 1ebdb461fed3..1902ef8f4a0b 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -179,6 +179,8 @@ static void igb_check_vf_rate_limit(struct igb_adapter *);
#ifdef CONFIG_PCI_IOV
static int igb_vf_configure(struct igb_adapter *adapter, int vf);
static int igb_pci_enable_sriov(struct pci_dev *dev, int num_vfs);
+static int igb_disable_sriov(struct pci_dev *dev);
+static int igb_pci_disable_sriov(struct pci_dev *dev);
#endif
#ifdef CONFIG_PM
@@ -2651,6 +2653,9 @@ err_eeprom:
err_sw_init:
kfree(adapter->shadow_vfta);
igb_clear_interrupt_scheme(adapter);
+#ifdef CONFIG_PCI_IOV
+ igb_disable_sriov(pdev);
+#endif
pci_iounmap(pdev, hw->hw_addr);
err_ioremap:
free_netdev(netdev);
@@ -2981,6 +2986,8 @@ static int igb_sw_init(struct igb_adapter *adapter)
}
#endif /* CONFIG_PCI_IOV */
+ igb_probe_vfs(adapter);
+
igb_init_queue_configuration(adapter);
/* Setup and initialize a copy of the hw vlan table array */
@@ -2993,8 +3000,6 @@ static int igb_sw_init(struct igb_adapter *adapter)
return -ENOMEM;
}
- igb_probe_vfs(adapter);
-
/* Explicitly disable IRQ since the NIC can be in any state. */
igb_irq_disable(adapter);