nvethernet: Add workqueue to set Rx mode.

Issue:
Network RTNL lock disables scheduler which causes IVC hang.

Fix:
- Add workqueue to set Rx mode.
- Change IVC spinlock to workqueue.
- Add virtualization check for macsec clk init.
- Add Read & Write Register.

Bug 2694285

Change-Id: I8354b500c62c0145eeed9a66bfcc8227fc8999e7
Signed-off-by: Nagaraj annaiah <nannaiah@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2520309

drivers/net/ethernet/nvidia/nvethernet/ether_linux.h

@@ -281,7 +281,7 @@ struct ether_ivc_ctxt {
 	/** ivc cookie */
 	struct tegra_hv_ivc_cookie *ivck;
 	/** ivc lock */
-	spinlock_t ivck_lock;
+	struct mutex ivck_lock;
 	/** ivc work */
 	struct work_struct ivc_work;
 	/** wait for event */
@@ -440,6 +440,10 @@ struct ether_priv_data {
 	unsigned int promisc_mode;
 	/** Delayed work queue to read RMON counters periodically */
 	struct delayed_work ether_stats_work;
+	/** process rx work */
+	struct work_struct set_rx_mode_work;
+	/** rx lock */
+	struct mutex rx_mode_lock;
 	/** Flag to check if EEE LPI is enabled for the MAC */
 	unsigned int eee_enabled;
 	/** Flag to check if EEE LPI is active currently */