Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 55 insertions, 0 deletions

diff --git a/kernel/drivers/staging/rtl8723au/hal/rtl8723a_sreset.c b/kernel/drivers/staging/rtl8723au/hal/rtl8723a_sreset.c
new file mode 100644
index 000000000..3c46294b8
--- /dev/null
+++ b/kernel/drivers/staging/rtl8723au/hal/rtl8723a_sreset.c
@@ -0,0 +1,55 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ ******************************************************************************/
+#define _RTL8723A_SRESET_C_
+
+#include <rtl8723a_sreset.h>
+#include <rtl8723a_hal.h>
+#include <usb_ops_linux.h>
+
+void rtl8723a_sreset_xmit_status_check(struct rtw_adapter *padapter)
+{
+	struct hal_data_8723a	*pHalData = GET_HAL_DATA(padapter);
+	struct sreset_priv *psrtpriv = &pHalData->srestpriv;
+
+	unsigned long current_time;
+	struct xmit_priv	*pxmitpriv = &padapter->xmitpriv;
+	unsigned int diff_time;
+	u32 txdma_status;
+
+	txdma_status = rtl8723au_read32(padapter, REG_TXDMA_STATUS);
+	if (txdma_status != 0) {
+		DBG_8723A("%s REG_TXDMA_STATUS:0x%08x\n", __func__, txdma_status);
+		rtw_sreset_reset(padapter);
+	}
+
+	current_time = jiffies;
+
+	if (0 == pxmitpriv->free_xmitbuf_cnt || 0 == pxmitpriv->free_xmit_extbuf_cnt) {
+
+		diff_time = jiffies_to_msecs(jiffies - psrtpriv->last_tx_time);
+
+		if (diff_time > 2000) {
+			if (psrtpriv->last_tx_complete_time == 0) {
+				psrtpriv->last_tx_complete_time = current_time;
+			} else {
+				diff_time = jiffies_to_msecs(jiffies - psrtpriv->last_tx_complete_time);
+				if (diff_time > 4000) {
+					DBG_8723A("%s tx hang\n", __func__);
+					rtw_sreset_reset(padapter);
+				}
+			}
+		}
+	}
+}