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authorMark Rustad <mark.d.rustad@intel.com>2014-03-12 00:38:51 +0000
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2014-04-11 05:58:06 -0700
commitea699569b150daa5d5f6c23040da997b83e4cfa3 (patch)
tree90b1bedd5325581712071cad614a48aa7ab976e0 /drivers/net
parent2049e1f6f5e6720b182c42695dbdef071804226e (diff)
downloadlinux-linaro-stable-ea699569b150daa5d5f6c23040da997b83e4cfa3.tar.gz
ixgbevf: Add bit to mark work queue initialization
An indication of work queue initialization is needed. This is because register accesses prior to that time can detect a removal and attempt to schedule the watchdog task. Adding the __IXGBEVF_WORK_INIT bit allows this to be checked and if not set prevent the watchdog task scheduling. By checking for a removal right after initialization, the probe can be failed at that point without getting the watchdog task involved. Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/intel/ixgbevf/ixgbevf.h1
-rw-r--r--drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c11
2 files changed, 11 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
index e7e7d695816b..a0a1de9ce238 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
@@ -421,6 +421,7 @@ enum ixbgevf_state_t {
__IXGBEVF_DOWN,
__IXGBEVF_DISABLED,
__IXGBEVF_REMOVING,
+ __IXGBEVF_WORK_INIT,
};
struct ixgbevf_cb {
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 4ba139b2d25a..905c26cfa600 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -107,7 +107,8 @@ static void ixgbevf_remove_adapter(struct ixgbe_hw *hw)
return;
hw->hw_addr = NULL;
dev_err(&adapter->pdev->dev, "Adapter removed\n");
- schedule_work(&adapter->watchdog_task);
+ if (test_bit(__IXGBEVF_WORK_INIT, &adapter->state))
+ schedule_work(&adapter->watchdog_task);
}
static void ixgbevf_check_remove(struct ixgbe_hw *hw, u32 reg)
@@ -3573,8 +3574,13 @@ static int ixgbevf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
adapter->watchdog_timer.function = ixgbevf_watchdog;
adapter->watchdog_timer.data = (unsigned long)adapter;
+ if (IXGBE_REMOVED(hw->hw_addr)) {
+ err = -EIO;
+ goto err_sw_init;
+ }
INIT_WORK(&adapter->reset_task, ixgbevf_reset_task);
INIT_WORK(&adapter->watchdog_task, ixgbevf_watchdog_task);
+ set_bit(__IXGBEVF_WORK_INIT, &adapter->state);
err = ixgbevf_init_interrupt_scheme(adapter);
if (err)
@@ -3667,6 +3673,9 @@ static pci_ers_result_t ixgbevf_io_error_detected(struct pci_dev *pdev,
struct net_device *netdev = pci_get_drvdata(pdev);
struct ixgbevf_adapter *adapter = netdev_priv(netdev);
+ if (!test_bit(__IXGBEVF_WORK_INIT, &adapter->state))
+ return PCI_ERS_RESULT_DISCONNECT;
+
rtnl_lock();
netif_device_detach(netdev);