diff options
| author | Mark Rustad <mark.d.rustad@intel.com> | 2014-03-12 00:38:51 +0000 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2014-04-11 05:58:06 -0700 |
| commit | ea699569b150daa5d5f6c23040da997b83e4cfa3 (patch) | |
| tree | 90b1bedd5325581712071cad614a48aa7ab976e0 | |
| parent | 2049e1f6f5e6720b182c42695dbdef071804226e (diff) | |
| download | linux-ea699569b150daa5d5f6c23040da997b83e4cfa3.tar.gz linux-ea699569b150daa5d5f6c23040da997b83e4cfa3.tar.xz | |
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>
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbevf/ixgbevf.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 11 |
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); |