iavf: clarify VLAN add/delete log messages and lower log level

The current dev_warn messages for too many VLAN changes are confusing
and one place incorrectly references "add" instead of "delete" VLANs
due to copy-paste errors.

- Use dev_info instead of dev_warn to lower the log level.
- Rephrase the message to: "virtchnl: Too many VLAN [add|delete]
  ([v1|v2]) requests; splitting into multiple messages to PF\n".

Suggested-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://patch.msgid.link/20251125223632.1857532-12-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Author: aloktiwa

drivers/net/ethernet/intel/iavf/iavf_virtchnl.c

@@ -793,7 +793,8 @@ void iavf_add_vlans(struct iavf_adapter *adapter)
 
 		len = virtchnl_struct_size(vvfl, vlan_id, count);
 		if (len > IAVF_MAX_AQ_BUF_SIZE) {
-			dev_warn(&adapter->pdev->dev, "Too many add VLAN changes in one request\n");
+			dev_info(&adapter->pdev->dev,
+				 "virtchnl: Too many VLAN add (v1) requests; splitting into multiple messages to PF\n");
 			while (len > IAVF_MAX_AQ_BUF_SIZE)
 				len = virtchnl_struct_size(vvfl, vlan_id,
 							   --count);
@@ -838,7 +839,8 @@ void iavf_add_vlans(struct iavf_adapter *adapter)
 
 		len = virtchnl_struct_size(vvfl_v2, filters, count);
 		if (len > IAVF_MAX_AQ_BUF_SIZE) {
-			dev_warn(&adapter->pdev->dev, "Too many add VLAN changes in one request\n");
+			dev_info(&adapter->pdev->dev,
+				 "virtchnl: Too many VLAN add (v2) requests; splitting into multiple messages to PF\n");
 			while (len > IAVF_MAX_AQ_BUF_SIZE)
 				len = virtchnl_struct_size(vvfl_v2, filters,
 							   --count);
@@ -941,7 +943,8 @@ void iavf_del_vlans(struct iavf_adapter *adapter)
 
 		len = virtchnl_struct_size(vvfl, vlan_id, count);
 		if (len > IAVF_MAX_AQ_BUF_SIZE) {
-			dev_warn(&adapter->pdev->dev, "Too many delete VLAN changes in one request\n");
+			dev_info(&adapter->pdev->dev,
+				 "virtchnl: Too many VLAN delete (v1) requests; splitting into multiple messages to PF\n");
 			while (len > IAVF_MAX_AQ_BUF_SIZE)
 				len = virtchnl_struct_size(vvfl, vlan_id,
 							   --count);
@@ -987,7 +990,8 @@ void iavf_del_vlans(struct iavf_adapter *adapter)
 
 		len = virtchnl_struct_size(vvfl_v2, filters, count);
 		if (len > IAVF_MAX_AQ_BUF_SIZE) {
-			dev_warn(&adapter->pdev->dev, "Too many add VLAN changes in one request\n");
+			dev_info(&adapter->pdev->dev,
+				 "virtchnl: Too many VLAN delete (v2) requests; splitting into multiple messages to PF\n");
 			while (len > IAVF_MAX_AQ_BUF_SIZE)
 				len = virtchnl_struct_size(vvfl_v2, filters,
 							   --count);