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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>
This commit is contained in:
Shannon Nelson 2013-11-16 10:00:40 +00:00 committed by Jeff Kirsher
parent d52cf0a948
commit d4946cf555
1 changed files with 20 additions and 6 deletions
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26
drivers/net/ethernet/intel/i40e/i40e_adminq.c
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@ -535,8 +535,9 @@ static i40e_status i40e_shutdown_arq(struct i40e_hw *hw)
**/
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 @@ i40e_status i40e_init_adminq(struct i40e_hw *hw)
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 ||