diff options
| author | Paul Greenwalt <paul.greenwalt@intel.com> | 2018-03-12 09:22:55 -0400 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2018-03-23 14:18:26 -0700 |
| commit | 1aa37845f7601ce9159cd08fdf381cfb5f494c12 (patch) | |
| tree | 7586c8fe0532e4c395c3da5259c6a6cdfc4546ec /drivers/net/ethernet/intel/ixgbe/ixgbe_common.h | |
| parent | f452518c982e57538e6d49da0a2c80eef22087ab (diff) | |
ixgbe: add status reg reads to ixgbe_check_remove
Add status register reads and delay between reads to ixgbe_check_remove.
Registers can read 0xFFFFFFFF during PCI reset, which causes the driver
to remove the adapter. The additional status register reads can reduce the
chance of this race condition.
If the status register is not 0xFFFFFFFF, then ixgbe_check_remove returns
the value of the register being read.
Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe/ixgbe_common.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_common.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.h index 67f304289fd9..2b311382167a 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.h @@ -154,6 +154,7 @@ s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw, void ixgbe_set_soft_rate_select_speed(struct ixgbe_hw *hw, ixgbe_link_speed speed); +#define IXGBE_FAILED_READ_RETRIES 5 #define IXGBE_FAILED_READ_REG 0xffffffffU #define IXGBE_FAILED_READ_CFG_DWORD 0xffffffffU #define IXGBE_FAILED_READ_CFG_WORD 0xffffU |