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| author | Bruce Allan <bruce.w.allan@intel.com> | 2012-03-21 00:39:12 +0000 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2012-04-03 15:25:08 -0700 |
| commit | bb9e44d0d0f45da356c39e485edacff6e14ba961 (patch) | |
| tree | ad4051375ad12407b3fdec34431a7a4da4009b0f /drivers/net/ethernet/intel/e1000e/e1000.h | |
| parent | aacc1bea190d731755a65cb8ec31dd756f4e263e (diff) | |
| download | op-kernel-dev-bb9e44d0d0f45da356c39e485edacff6e14ba961.zip op-kernel-dev-bb9e44d0d0f45da356c39e485edacff6e14ba961.tar.gz | |
e1000e: prevent oops when adapter is being closed and reset simultaneously
When the adapter is closed while it is simultaneously going through a
reset, it can cause a null-pointer dereference when the two different code
paths simultaneously cleanup up the Tx/Rx resources.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/e1000e/e1000.h')
| -rw-r--r-- | drivers/net/ethernet/intel/e1000e/e1000.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/e1000.h b/drivers/net/ethernet/intel/e1000e/e1000.h index 86cdd47..b83897f 100644 --- a/drivers/net/ethernet/intel/e1000e/e1000.h +++ b/drivers/net/ethernet/intel/e1000e/e1000.h @@ -161,6 +161,12 @@ struct e1000_info; /* Time to wait before putting the device into D3 if there's no link (in ms). */ #define LINK_TIMEOUT 100 +/* + * Count for polling __E1000_RESET condition every 10-20msec. + * Experimentation has shown the reset can take approximately 210msec. + */ +#define E1000_CHECK_RESET_COUNT 25 + #define DEFAULT_RDTR 0 #define DEFAULT_RADV 8 #define BURST_RDTR 0x20 |
