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i40e: Increase timeout when checking GLGEN_RSTAT_DEVSTATE bit

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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>
This commit is contained in:
Kevin Scott 2016-02-17 16:12:13 -08:00 committed by Jeff Kirsher
parent 31b606d0c4
commit 4d7cec078d
1 changed files with 7 additions and 1 deletions
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8
drivers/net/ethernet/intel/i40e/i40e_common.c
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@ -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;