[Intel-wired-lan] [PATCH iwl-net] ice: implement AQ download pkg retry

[Wojciech Drewek]

ice_aqc_opc_download_pkg (0x0C40) AQ sporadically returns error due
to FW issue. Fix this by retrying five times before moving to
Safe Mode.

Reviewed-by: Michal Swiatkowski <michal.swiatkow...@linux.intel.com>
Signed-off-by: Wojciech Drewek <wojciech.dre...@intel.com>
---
 drivers/net/ethernet/intel/ice/ice_ddp.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_ddp.c 
b/drivers/net/ethernet/intel/ice/ice_ddp.c
index ce5034ed2b24..19e2111fcf08 100644
--- a/drivers/net/ethernet/intel/ice/ice_ddp.c
+++ b/drivers/net/ethernet/intel/ice/ice_ddp.c
@@ -1339,6 +1339,7 @@ ice_dwnld_cfg_bufs_no_lock(struct ice_hw *hw, struct 
ice_buf *bufs, u32 start,
 
        for (i = 0; i < count; i++) {
                bool last = false;
+               int try_cnt = 0;
                int status;
 
                bh = (struct ice_buf_hdr *)(bufs + start + i);
@@ -1346,8 +1347,22 @@ ice_dwnld_cfg_bufs_no_lock(struct ice_hw *hw, struct 
ice_buf *bufs, u32 start,
                if (indicate_last)
                        last = ice_is_last_download_buffer(bh, i, count);
 
-               status = ice_aq_download_pkg(hw, bh, ICE_PKG_BUF_SIZE, last,
-                                            &offset, &info, NULL);
+               while (try_cnt < 5) {
+                       status = ice_aq_download_pkg(hw, bh, ICE_PKG_BUF_SIZE,
+                                                    last, &offset, &info,
+                                                    NULL);
+                       if (hw->adminq.sq_last_status != ICE_AQ_RC_ENOSEC &&
+                           hw->adminq.sq_last_status != ICE_AQ_RC_EBADSIG)
+                               break;
+
+                       try_cnt++;
+                       msleep(20);
+               }
+
+               if (try_cnt)
+                       dev_dbg(ice_hw_to_dev(hw),
+                               "ice_aq_download_pkg failed, number of retries: 
%d\n",
+                               try_cnt);
 
                /* Save AQ status from download package */
                if (status) {
-- 
2.40.1