From: Kevin Scott <kevin.c.sc...@intel.com>
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.sc...@intel.com>
Tested-by: Andrew Bowers <andrewx.bow...@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirs...@intel.com>
---
drivers/net/ethernet/intel/i40e/i40e_common.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c
b/drivers/net/ethernet/intel/i40e/i40e_common.c
index d417193..3a57e59 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;
--
2.5.0
