[PATCH v2 59/70] net/ice/base: add unload flag for control queue shutdown

[Qi Zhang <qi.z.zhang@intel.com>]

Admin queue command for shutdown AQ contains flag to indicate
driver unload. However the flag is always set in driver, even
for the resets. It causes Firmware to consider driver as unloaded
once the PF reset is triggered on all ports of device. Firmware then
restores default configuration of some features like Tx Balancing,
which is not expected behavior.
This patch added an additional function parameter to indicate
driver unload.

Signed-off-by: Piotr Gardocki <piotrx.gardocki@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
 drivers/net/ice/base/ice_common.h   |  2 +-
 drivers/net/ice/base/ice_controlq.c | 19 +++++++++++--------
 drivers/net/ice/ice_ethdev.c        |  2 +-
 3 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ice/base/ice_common.h b/drivers/net/ice/base/ice_common.h
index ac13a979b1..9101ae11af 100644
--- a/drivers/net/ice/base/ice_common.h
+++ b/drivers/net/ice/base/ice_common.h
@@ -32,7 +32,7 @@ enum ice_status ice_reset(struct ice_hw *hw, enum ice_reset_req req);
 
 enum ice_status ice_create_all_ctrlq(struct ice_hw *hw);
 enum ice_status ice_init_all_ctrlq(struct ice_hw *hw);
-void ice_shutdown_all_ctrlq(struct ice_hw *hw);
+void ice_shutdown_all_ctrlq(struct ice_hw *hw, bool unloading);
 void ice_destroy_all_ctrlq(struct ice_hw *hw);
 enum ice_status
 ice_clean_rq_elem(struct ice_hw *hw, struct ice_ctl_q_info *cq,
diff --git a/drivers/net/ice/base/ice_controlq.c b/drivers/net/ice/base/ice_controlq.c
index d83d0d76d0..8a6311572c 100644
--- a/drivers/net/ice/base/ice_controlq.c
+++ b/drivers/net/ice/base/ice_controlq.c
@@ -661,10 +661,12 @@ static bool ice_is_sbq_supported(struct ice_hw *hw)
  * ice_shutdown_ctrlq - shutdown routine for any control queue
  * @hw: pointer to the hardware structure
  * @q_type: specific Control queue type
+ * @unloading: is the driver unloading itself
  *
  * NOTE: this function does not destroy the control queue locks.
  */
-static void ice_shutdown_ctrlq(struct ice_hw *hw, enum ice_ctl_q q_type)
+static void ice_shutdown_ctrlq(struct ice_hw *hw, enum ice_ctl_q q_type,
+			       bool unloading)
 {
 	struct ice_ctl_q_info *cq;
 
@@ -674,7 +676,7 @@ static void ice_shutdown_ctrlq(struct ice_hw *hw, enum ice_ctl_q q_type)
 	case ICE_CTL_Q_ADMIN:
 		cq = &hw->adminq;
 		if (ice_check_sq_alive(hw, cq))
-			ice_aq_q_shutdown(hw, true);
+			ice_aq_q_shutdown(hw, unloading);
 		break;
 	case ICE_CTL_Q_SB:
 		cq = &hw->sbq;
@@ -693,21 +695,22 @@ static void ice_shutdown_ctrlq(struct ice_hw *hw, enum ice_ctl_q q_type)
 /**
  * ice_shutdown_all_ctrlq - shutdown routine for all control queues
  * @hw: pointer to the hardware structure
+ * @unloading: is the driver unloading itself
  *
  * NOTE: this function does not destroy the control queue locks. The driver
  * may call this at runtime to shutdown and later restart control queues, such
  * as in response to a reset event.
  */
-void ice_shutdown_all_ctrlq(struct ice_hw *hw)
+void ice_shutdown_all_ctrlq(struct ice_hw *hw, bool unloading)
 {
 	ice_debug(hw, ICE_DBG_TRACE, "%s\n", __func__);
 	/* Shutdown FW admin queue */
-	ice_shutdown_ctrlq(hw, ICE_CTL_Q_ADMIN);
+	ice_shutdown_ctrlq(hw, ICE_CTL_Q_ADMIN, unloading);
 	/* Shutdown PHY Sideband */
 	if (ice_is_sbq_supported(hw))
-		ice_shutdown_ctrlq(hw, ICE_CTL_Q_SB);
+		ice_shutdown_ctrlq(hw, ICE_CTL_Q_SB, unloading);
 	/* Shutdown PF-VF Mailbox */
-	ice_shutdown_ctrlq(hw, ICE_CTL_Q_MAILBOX);
+	ice_shutdown_ctrlq(hw, ICE_CTL_Q_MAILBOX, unloading);
 }
 
 /**
@@ -741,7 +744,7 @@ enum ice_status ice_init_all_ctrlq(struct ice_hw *hw)
 			break;
 
 		ice_debug(hw, ICE_DBG_AQ_MSG, "Retry Admin Queue init due to FW critical error\n");
-		ice_shutdown_ctrlq(hw, ICE_CTL_Q_ADMIN);
+		ice_shutdown_ctrlq(hw, ICE_CTL_Q_ADMIN, true);
 		ice_msec_delay(ICE_CTL_Q_ADMIN_INIT_MSEC, true);
 	} while (retry++ < ICE_CTL_Q_ADMIN_INIT_TIMEOUT);
 
@@ -822,7 +825,7 @@ static void ice_destroy_ctrlq_locks(struct ice_ctl_q_info *cq)
 void ice_destroy_all_ctrlq(struct ice_hw *hw)
 {
 	/* shut down all the control queues first */
-	ice_shutdown_all_ctrlq(hw);
+	ice_shutdown_all_ctrlq(hw, true);
 
 	ice_destroy_ctrlq_locks(&hw->adminq);
 	if (ice_is_sbq_supported(hw))
diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
index 551be3566f..172eb2fbdb 100644
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c
@@ -2521,7 +2521,7 @@ ice_dev_close(struct rte_eth_dev *dev)
 	ice_free_hw_tbls(hw);
 	rte_free(hw->port_info);
 	hw->port_info = NULL;
-	ice_shutdown_all_ctrlq(hw);
+	ice_shutdown_all_ctrlq(hw, true);
 	rte_free(pf->proto_xtr);
 	pf->proto_xtr = NULL;
 
-- 
2.31.1