bnxt_en: log firmware debug notifications

Firmware is capable of generating asynchronous debug notifications.
The event data is opaque to the driver and is simply logged. Debug
notifications can be enabled by turning on hardware status messages
using the ethtool msglvl interface.
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/broadcom/bnxt/bnxt.c

@@ -255,6 +255,7 @@ static const u16 bnxt_async_events_arr[] = {
 	ASYNC_EVENT_CMPL_EVENT_ID_PORT_PHY_CFG_CHANGE,
 	ASYNC_EVENT_CMPL_EVENT_ID_RESET_NOTIFY,
 	ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY,
+	ASYNC_EVENT_CMPL_EVENT_ID_DEBUG_NOTIFICATION,
 	ASYNC_EVENT_CMPL_EVENT_ID_RING_MONITOR_MSG,
 };
 
@@ -2072,6 +2073,13 @@ static int bnxt_async_event_process(struct bnxt *bp,
 			bnxt_fw_health_readl(bp, BNXT_FW_RESET_CNT_REG);
 		goto async_event_process_exit;
 	}
+	case ASYNC_EVENT_CMPL_EVENT_ID_DEBUG_NOTIFICATION:
+		if (netif_msg_hw(bp)) {
+			netdev_notice(bp->dev,
+				      "Received firmware debug notification, data1: 0x%x, data2: 0x%x\n",
+				      data1, data2);
+		}
+		goto async_event_process_exit;
 	case ASYNC_EVENT_CMPL_EVENT_ID_RING_MONITOR_MSG: {
 		struct bnxt_rx_ring_info *rxr;
 		u16 grp_idx;