netdev - [PATCH iwl-net] ice: implement AQ download pkg retry

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Message-Id: <20240516140426.60439-1-wojciech.drewek@intel.com>
Date: Thu, 16 May 2024 16:04:26 +0200
From: Wojciech Drewek <wojciech.drewek@...el.com>
To: netdev@...r.kernel.org
Cc: intel-wired-lan@...ts.osuosl.org
Subject: [PATCH iwl-net] ice: implement AQ download pkg retry

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.swiatkowski@...ux.intel.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@...el.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