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| author | Kevin Scott <kevin.c.scott@intel.com> | 2016-02-18 03:12:13 +0300 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2016-02-19 10:39:53 +0300 |
| commit | 4d7cec078de864b7ba5459aa688278c4e6f3ad42 (patch) | |
| tree | 83c5e4dcc0e5a97c7e03ba58c0bb478bcdab2b0e | |
| parent | 31b606d0c40a1435c54bff18e4d3d3c33af1c3cf (diff) | |
| download | linux-4d7cec078de864b7ba5459aa688278c4e6f3ad42.tar.xz | |
i40e: Increase timeout when checking GLGEN_RSTAT_DEVSTATE bit
When linking with particular PHY types (ex: copper PHY), the amount of
time it takes for the GLGEN_RSTAT_DEVSTATE to be set increases greatly,
which can lead to a timeout and failure to load the driver.
Change-ID: If02be0dfcd7c57fdde2d5c81cd63651260cd2029
Signed-off-by: Kevin Scott <kevin.c.scott@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_common.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c index d41719331976..3a57e59c2a1a 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_common.c +++ b/drivers/net/ethernet/intel/i40e/i40e_common.c @@ -1239,7 +1239,13 @@ i40e_status i40e_pf_reset(struct i40e_hw *hw) grst_del = (rd32(hw, I40E_GLGEN_RSTCTL) & I40E_GLGEN_RSTCTL_GRSTDEL_MASK) >> I40E_GLGEN_RSTCTL_GRSTDEL_SHIFT; - for (cnt = 0; cnt < grst_del + 10; cnt++) { + + /* It can take upto 15 secs for GRST steady state. + * Bump it to 16 secs max to be safe. + */ + grst_del = grst_del * 20; + + for (cnt = 0; cnt < grst_del; cnt++) { reg = rd32(hw, I40E_GLGEN_RSTAT); if (!(reg & I40E_GLGEN_RSTAT_DEVSTATE_MASK)) break; |