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10eec95569
Processing multiple ixgbe_watchdog_task calls may cause the link_up variable and IXGBE_FLAG_NEED_LINK_UPDATE flag to be set incorrectly. In the worse case this is causing the netif_carrier_off to be called inappropriately which results in an interface that can't be brought up. Although schedule_work() will only schedule the task if it is not already on the work queue the WORK_STRUCT_PENDING bits are cleared just before calling the work function. This allows WORK_STRUCT_PENDING to be cleared, the work function to start and meanwhile schedule another task. This patch adds a mutex to the watchdog task. This bug is actualized by changing DCB settings or doing extended cable pull or reset tests. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .. | ||
| ixgbe_82598.c | ||
| ixgbe_82599.c | ||
| ixgbe_common.c | ||
| ixgbe_common.h | ||
| ixgbe_dcb_82598.c | ||
| ixgbe_dcb_82598.h | ||
| ixgbe_dcb_82599.c | ||
| ixgbe_dcb_82599.h | ||
| ixgbe_dcb_nl.c | ||
| ixgbe_dcb.c | ||
| ixgbe_dcb.h | ||
| ixgbe_ethtool.c | ||
| ixgbe_fcoe.c | ||
| ixgbe_fcoe.h | ||
| ixgbe_main.c | ||
| ixgbe_mbx.c | ||
| ixgbe_mbx.h | ||
| ixgbe_phy.c | ||
| ixgbe_phy.h | ||
| ixgbe_sriov.c | ||
| ixgbe_sriov.h | ||
| ixgbe_type.h | ||
| ixgbe.h | ||
| Makefile | ||