i40e: retry call on timeout
If the admin queue times out, retry some more to make driver load and
reset more robust.
Change-Id: I45c977b3d10a62c770d6072659ec27834849ca33
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq.c b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
index 92c01ad..30f32f3 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_adminq.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
@@ -535,8 +535,9 @@
**/
i40e_status i40e_init_adminq(struct i40e_hw *hw)
{
- u16 eetrack_lo, eetrack_hi;
i40e_status ret_code;
+ u16 eetrack_lo, eetrack_hi;
+ int retry = 0;
/* verify input for valid configuration */
if ((hw->aq.num_arq_entries == 0) ||
@@ -564,11 +565,24 @@
if (ret_code)
goto init_adminq_free_asq;
- ret_code = i40e_aq_get_firmware_version(hw,
- &hw->aq.fw_maj_ver, &hw->aq.fw_min_ver,
- &hw->aq.api_maj_ver, &hw->aq.api_min_ver,
- NULL);
- if (ret_code)
+ /* There are some cases where the firmware may not be quite ready
+ * for AdminQ operations, so we retry the AdminQ setup a few times
+ * if we see timeouts in this first AQ call.
+ */
+ do {
+ ret_code = i40e_aq_get_firmware_version(hw,
+ &hw->aq.fw_maj_ver,
+ &hw->aq.fw_min_ver,
+ &hw->aq.api_maj_ver,
+ &hw->aq.api_min_ver,
+ NULL);
+ if (ret_code != I40E_ERR_ADMIN_QUEUE_TIMEOUT)
+ break;
+ retry++;
+ msleep(100);
+ i40e_resume_aq(hw);
+ } while (retry < 10);
+ if (ret_code != I40E_SUCCESS)
goto init_adminq_free_arq;
if (hw->aq.api_maj_ver != I40E_FW_API_VERSION_MAJOR ||