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, 730 insertions, 0 deletions

diff --git a/kernel/drivers/net/ethernet/chelsio/cxgb/vsc7326.c b/kernel/drivers/net/ethernet/chelsio/cxgb/vsc7326.c
new file mode 100644
index 000000000..b0cb388f5
--- /dev/null
+++ b/kernel/drivers/net/ethernet/chelsio/cxgb/vsc7326.c
@@ -0,0 +1,730 @@
+/* $Date: 2006/04/28 19:20:06 $ $RCSfile: vsc7326.c,v $ $Revision: 1.19 $ */
+
+/* Driver for Vitesse VSC7326 (Schaumburg) MAC */
+
+#include "gmac.h"
+#include "elmer0.h"
+#include "vsc7326_reg.h"
+
+/* Update fast changing statistics every 15 seconds */
+#define STATS_TICK_SECS 15
+/* 30 minutes for full statistics update */
+#define MAJOR_UPDATE_TICKS (1800 / STATS_TICK_SECS)
+
+#define MAX_MTU 9600
+
+/* The egress WM value 0x01a01fff should be used only when the
+ * interface is down (MAC port disabled). This is a workaround
+ * for disabling the T2/MAC flow-control. When the interface is
+ * enabled, the WM value should be set to 0x014a03F0.
+ */
+#define WM_DISABLE	0x01a01fff
+#define WM_ENABLE	0x014a03F0
+
+struct init_table {
+	u32 addr;
+	u32 data;
+};
+
+struct _cmac_instance {
+	u32 index;
+	u32 ticks;
+};
+
+#define INITBLOCK_SLEEP	0xffffffff
+
+static void vsc_read(adapter_t *adapter, u32 addr, u32 *val)
+{
+	u32 status, vlo, vhi;
+	int i;
+
+	spin_lock_bh(&adapter->mac_lock);
+	t1_tpi_read(adapter, (addr << 2) + 4, &vlo);
+	i = 0;
+	do {
+		t1_tpi_read(adapter, (REG_LOCAL_STATUS << 2) + 4, &vlo);
+		t1_tpi_read(adapter, REG_LOCAL_STATUS << 2, &vhi);
+		status = (vhi << 16) | vlo;
+		i++;
+	} while (((status & 1) == 0) && (i < 50));
+	if (i == 50)
+		pr_err("Invalid tpi read from MAC, breaking loop.\n");
+
+	t1_tpi_read(adapter, (REG_LOCAL_DATA << 2) + 4, &vlo);
+	t1_tpi_read(adapter, REG_LOCAL_DATA << 2, &vhi);
+
+	*val = (vhi << 16) | vlo;
+
+	/* pr_err("rd: block: 0x%x  sublock: 0x%x  reg: 0x%x  data: 0x%x\n",
+		((addr&0xe000)>>13), ((addr&0x1e00)>>9),
+		((addr&0x01fe)>>1), *val); */
+	spin_unlock_bh(&adapter->mac_lock);
+}
+
+static void vsc_write(adapter_t *adapter, u32 addr, u32 data)
+{
+	spin_lock_bh(&adapter->mac_lock);
+	t1_tpi_write(adapter, (addr << 2) + 4, data & 0xFFFF);
+	t1_tpi_write(adapter, addr << 2, (data >> 16) & 0xFFFF);
+	/* pr_err("wr: block: 0x%x  sublock: 0x%x  reg: 0x%x  data: 0x%x\n",
+		((addr&0xe000)>>13), ((addr&0x1e00)>>9),
+		((addr&0x01fe)>>1), data); */
+	spin_unlock_bh(&adapter->mac_lock);
+}
+
+/* Hard reset the MAC.  This wipes out *all* configuration. */
+static void vsc7326_full_reset(adapter_t* adapter)
+{
+	u32 val;
+	u32 result = 0xffff;
+
+	t1_tpi_read(adapter, A_ELMER0_GPO, &val);
+	val &= ~1;
+	t1_tpi_write(adapter, A_ELMER0_GPO, val);
+	udelay(2);
+	val |= 0x1;	/* Enable mac MAC itself */
+	val |= 0x800;	/* Turn off the red LED */
+	t1_tpi_write(adapter, A_ELMER0_GPO, val);
+	mdelay(1);
+	vsc_write(adapter, REG_SW_RESET, 0x80000001);
+	do {
+		mdelay(1);
+		vsc_read(adapter, REG_SW_RESET, &result);
+	} while (result != 0x0);
+}
+
+static struct init_table vsc7326_reset[] = {
+	{      REG_IFACE_MODE, 0x00000000 },
+	{         REG_CRC_CFG, 0x00000020 },
+	{   REG_PLL_CLK_SPEED, 0x00050c00 },
+	{   REG_PLL_CLK_SPEED, 0x00050c00 },
+	{            REG_MSCH, 0x00002f14 },
+	{       REG_SPI4_MISC, 0x00040409 },
+	{     REG_SPI4_DESKEW, 0x00080000 },
+	{ REG_SPI4_ING_SETUP2, 0x08080004 },
+	{ REG_SPI4_ING_SETUP0, 0x04111004 },
+	{ REG_SPI4_EGR_SETUP0, 0x80001a04 },
+	{ REG_SPI4_ING_SETUP1, 0x02010000 },
+	{      REG_AGE_INC(0), 0x00000000 },
+	{      REG_AGE_INC(1), 0x00000000 },
+	{     REG_ING_CONTROL, 0x0a200011 },
+	{     REG_EGR_CONTROL, 0xa0010091 },
+};
+
+static struct init_table vsc7326_portinit[4][22] = {
+	{	/* Port 0 */
+			/* FIFO setup */
+		{           REG_DBG(0), 0x000004f0 },
+		{           REG_HDX(0), 0x00073101 },
+		{        REG_TEST(0,0), 0x00000022 },
+		{        REG_TEST(1,0), 0x00000022 },
+		{  REG_TOP_BOTTOM(0,0), 0x003f0000 },
+		{  REG_TOP_BOTTOM(1,0), 0x00120000 },
+		{ REG_HIGH_LOW_WM(0,0), 0x07460757 },
+		{ REG_HIGH_LOW_WM(1,0), WM_DISABLE },
+		{   REG_CT_THRHLD(0,0), 0x00000000 },
+		{   REG_CT_THRHLD(1,0), 0x00000000 },
+		{         REG_BUCKE(0), 0x0002ffff },
+		{         REG_BUCKI(0), 0x0002ffff },
+		{        REG_TEST(0,0), 0x00000020 },
+		{        REG_TEST(1,0), 0x00000020 },
+			/* Port config */
+		{       REG_MAX_LEN(0), 0x00002710 },
+		{     REG_PORT_FAIL(0), 0x00000002 },
+		{    REG_NORMALIZER(0), 0x00000a64 },
+		{        REG_DENORM(0), 0x00000010 },
+		{     REG_STICK_BIT(0), 0x03baa370 },
+		{     REG_DEV_SETUP(0), 0x00000083 },
+		{     REG_DEV_SETUP(0), 0x00000082 },
+		{      REG_MODE_CFG(0), 0x0200259f },
+	},
+	{	/* Port 1 */
+			/* FIFO setup */
+		{           REG_DBG(1), 0x000004f0 },
+		{           REG_HDX(1), 0x00073101 },
+		{        REG_TEST(0,1), 0x00000022 },
+		{        REG_TEST(1,1), 0x00000022 },
+		{  REG_TOP_BOTTOM(0,1), 0x007e003f },
+		{  REG_TOP_BOTTOM(1,1), 0x00240012 },
+		{ REG_HIGH_LOW_WM(0,1), 0x07460757 },
+		{ REG_HIGH_LOW_WM(1,1), WM_DISABLE },
+		{   REG_CT_THRHLD(0,1), 0x00000000 },
+		{   REG_CT_THRHLD(1,1), 0x00000000 },
+		{         REG_BUCKE(1), 0x0002ffff },
+		{         REG_BUCKI(1), 0x0002ffff },
+		{        REG_TEST(0,1), 0x00000020 },
+		{        REG_TEST(1,1), 0x00000020 },
+			/* Port config */
+		{       REG_MAX_LEN(1), 0x00002710 },
+		{     REG_PORT_FAIL(1), 0x00000002 },
+		{    REG_NORMALIZER(1), 0x00000a64 },
+		{        REG_DENORM(1), 0x00000010 },
+		{     REG_STICK_BIT(1), 0x03baa370 },
+		{     REG_DEV_SETUP(1), 0x00000083 },
+		{     REG_DEV_SETUP(1), 0x00000082 },
+		{      REG_MODE_CFG(1), 0x0200259f },
+	},
+	{	/* Port 2 */
+			/* FIFO setup */
+		{           REG_DBG(2), 0x000004f0 },
+		{           REG_HDX(2), 0x00073101 },
+		{        REG_TEST(0,2), 0x00000022 },
+		{        REG_TEST(1,2), 0x00000022 },
+		{  REG_TOP_BOTTOM(0,2), 0x00bd007e },
+		{  REG_TOP_BOTTOM(1,2), 0x00360024 },
+		{ REG_HIGH_LOW_WM(0,2), 0x07460757 },
+		{ REG_HIGH_LOW_WM(1,2), WM_DISABLE },
+		{   REG_CT_THRHLD(0,2), 0x00000000 },
+		{   REG_CT_THRHLD(1,2), 0x00000000 },
+		{         REG_BUCKE(2), 0x0002ffff },
+		{         REG_BUCKI(2), 0x0002ffff },
+		{        REG_TEST(0,2), 0x00000020 },
+		{        REG_TEST(1,2), 0x00000020 },
+			/* Port config */
+		{       REG_MAX_LEN(2), 0x00002710 },
+		{     REG_PORT_FAIL(2), 0x00000002 },
+		{    REG_NORMALIZER(2), 0x00000a64 },
+		{        REG_DENORM(2), 0x00000010 },
+		{     REG_STICK_BIT(2), 0x03baa370 },
+		{     REG_DEV_SETUP(2), 0x00000083 },
+		{     REG_DEV_SETUP(2), 0x00000082 },
+		{      REG_MODE_CFG(2), 0x0200259f },
+	},
+	{	/* Port 3 */
+			/* FIFO setup */
+		{           REG_DBG(3), 0x000004f0 },
+		{           REG_HDX(3), 0x00073101 },
+		{        REG_TEST(0,3), 0x00000022 },
+		{        REG_TEST(1,3), 0x00000022 },
+		{  REG_TOP_BOTTOM(0,3), 0x00fc00bd },
+		{  REG_TOP_BOTTOM(1,3), 0x00480036 },
+		{ REG_HIGH_LOW_WM(0,3), 0x07460757 },
+		{ REG_HIGH_LOW_WM(1,3), WM_DISABLE },
+		{   REG_CT_THRHLD(0,3), 0x00000000 },
+		{   REG_CT_THRHLD(1,3), 0x00000000 },
+		{         REG_BUCKE(3), 0x0002ffff },
+		{         REG_BUCKI(3), 0x0002ffff },
+		{        REG_TEST(0,3), 0x00000020 },
+		{        REG_TEST(1,3), 0x00000020 },
+			/* Port config */
+		{       REG_MAX_LEN(3), 0x00002710 },
+		{     REG_PORT_FAIL(3), 0x00000002 },
+		{    REG_NORMALIZER(3), 0x00000a64 },
+		{        REG_DENORM(3), 0x00000010 },
+		{     REG_STICK_BIT(3), 0x03baa370 },
+		{     REG_DEV_SETUP(3), 0x00000083 },
+		{     REG_DEV_SETUP(3), 0x00000082 },
+		{      REG_MODE_CFG(3), 0x0200259f },
+	},
+};
+
+static void run_table(adapter_t *adapter, struct init_table *ib, int len)
+{
+	int i;
+
+	for (i = 0; i < len; i++) {
+		if (ib[i].addr == INITBLOCK_SLEEP) {
+			udelay( ib[i].data );
+			pr_err("sleep %d us\n",ib[i].data);
+		} else
+			vsc_write( adapter, ib[i].addr, ib[i].data );
+	}
+}
+
+static int bist_rd(adapter_t *adapter, int moduleid, int address)
+{
+	int data = 0;
+	u32 result = 0;
+
+	if ((address != 0x0) &&
+	    (address != 0x1) &&
+	    (address != 0x2) &&
+	    (address != 0xd) &&
+	    (address != 0xe))
+			pr_err("No bist address: 0x%x\n", address);
+
+	data = ((0x00 << 24) | ((address & 0xff) << 16) | (0x00 << 8) |
+		((moduleid & 0xff) << 0));
+	vsc_write(adapter, REG_RAM_BIST_CMD, data);
+
+	udelay(10);
+
+	vsc_read(adapter, REG_RAM_BIST_RESULT, &result);
+	if ((result & (1 << 9)) != 0x0)
+		pr_err("Still in bist read: 0x%x\n", result);
+	else if ((result & (1 << 8)) != 0x0)
+		pr_err("bist read error: 0x%x\n", result);
+
+	return result & 0xff;
+}
+
+static int bist_wr(adapter_t *adapter, int moduleid, int address, int value)
+{
+	int data = 0;
+	u32 result = 0;
+
+	if ((address != 0x0) &&
+	    (address != 0x1) &&
+	    (address != 0x2) &&
+	    (address != 0xd) &&
+	    (address != 0xe))
+			pr_err("No bist address: 0x%x\n", address);
+
+	if (value > 255)
+		pr_err("Suspicious write out of range value: 0x%x\n", value);
+
+	data = ((0x01 << 24) | ((address & 0xff) << 16) | (value << 8) |
+		((moduleid & 0xff) << 0));
+	vsc_write(adapter, REG_RAM_BIST_CMD, data);
+
+	udelay(5);
+
+	vsc_read(adapter, REG_RAM_BIST_CMD, &result);
+	if ((result & (1 << 27)) != 0x0)
+		pr_err("Still in bist write: 0x%x\n", result);
+	else if ((result & (1 << 26)) != 0x0)
+		pr_err("bist write error: 0x%x\n", result);
+
+	return 0;
+}
+
+static int run_bist(adapter_t *adapter, int moduleid)
+{
+	/*run bist*/
+	(void) bist_wr(adapter,moduleid, 0x00, 0x02);
+	(void) bist_wr(adapter,moduleid, 0x01, 0x01);
+
+	return 0;
+}
+
+static int check_bist(adapter_t *adapter, int moduleid)
+{
+	int result=0;
+	int column=0;
+	/*check bist*/
+	result = bist_rd(adapter,moduleid, 0x02);
+	column = ((bist_rd(adapter,moduleid, 0x0e)<<8) +
+			(bist_rd(adapter,moduleid, 0x0d)));
+	if ((result & 3) != 0x3)
+		pr_err("Result: 0x%x  BIST error in ram %d, column: 0x%04x\n",
+			result, moduleid, column);
+	return 0;
+}
+
+static int enable_mem(adapter_t *adapter, int moduleid)
+{
+	/*enable mem*/
+	(void) bist_wr(adapter,moduleid, 0x00, 0x00);
+	return 0;
+}
+
+static int run_bist_all(adapter_t *adapter)
+{
+	int port = 0;
+	u32 val = 0;
+
+	vsc_write(adapter, REG_MEM_BIST, 0x5);
+	vsc_read(adapter, REG_MEM_BIST, &val);
+
+	for (port = 0; port < 12; port++)
+		vsc_write(adapter, REG_DEV_SETUP(port), 0x0);
+
+	udelay(300);
+	vsc_write(adapter, REG_SPI4_MISC, 0x00040409);
+	udelay(300);
+
+	(void) run_bist(adapter,13);
+	(void) run_bist(adapter,14);
+	(void) run_bist(adapter,20);
+	(void) run_bist(adapter,21);
+	mdelay(200);
+	(void) check_bist(adapter,13);
+	(void) check_bist(adapter,14);
+	(void) check_bist(adapter,20);
+	(void) check_bist(adapter,21);
+	udelay(100);
+	(void) enable_mem(adapter,13);
+	(void) enable_mem(adapter,14);
+	(void) enable_mem(adapter,20);
+	(void) enable_mem(adapter,21);
+	udelay(300);
+	vsc_write(adapter, REG_SPI4_MISC, 0x60040400);
+	udelay(300);
+	for (port = 0; port < 12; port++)
+		vsc_write(adapter, REG_DEV_SETUP(port), 0x1);
+
+	udelay(300);
+	vsc_write(adapter, REG_MEM_BIST, 0x0);
+	mdelay(10);
+	return 0;
+}
+
+static int mac_intr_handler(struct cmac *mac)
+{
+	return 0;
+}
+
+static int mac_intr_enable(struct cmac *mac)
+{
+	return 0;
+}
+
+static int mac_intr_disable(struct cmac *mac)
+{
+	return 0;
+}
+
+static int mac_intr_clear(struct cmac *mac)
+{
+	return 0;
+}
+
+/* Expect MAC address to be in network byte order. */
+static int mac_set_address(struct cmac* mac, u8 addr[6])
+{
+	u32 val;
+	int port = mac->instance->index;
+
+	vsc_write(mac->adapter, REG_MAC_LOW_ADDR(port),
+		  (addr[3] << 16) | (addr[4] << 8) | addr[5]);
+	vsc_write(mac->adapter, REG_MAC_HIGH_ADDR(port),
+		  (addr[0] << 16) | (addr[1] << 8) | addr[2]);
+
+	vsc_read(mac->adapter, REG_ING_FFILT_UM_EN, &val);
+	val &= ~0xf0000000;
+	vsc_write(mac->adapter, REG_ING_FFILT_UM_EN, val | (port << 28));
+
+	vsc_write(mac->adapter, REG_ING_FFILT_MASK0,
+		  0xffff0000 | (addr[4] << 8) | addr[5]);
+	vsc_write(mac->adapter, REG_ING_FFILT_MASK1,
+		  0xffff0000 | (addr[2] << 8) | addr[3]);
+	vsc_write(mac->adapter, REG_ING_FFILT_MASK2,
+		  0xffff0000 | (addr[0] << 8) | addr[1]);
+	return 0;
+}
+
+static int mac_get_address(struct cmac *mac, u8 addr[6])
+{
+	u32 addr_lo, addr_hi;
+	int port = mac->instance->index;
+
+	vsc_read(mac->adapter, REG_MAC_LOW_ADDR(port), &addr_lo);
+	vsc_read(mac->adapter, REG_MAC_HIGH_ADDR(port), &addr_hi);
+
+	addr[0] = (u8) (addr_hi >> 16);
+	addr[1] = (u8) (addr_hi >> 8);
+	addr[2] = (u8) addr_hi;
+	addr[3] = (u8) (addr_lo >> 16);
+	addr[4] = (u8) (addr_lo >> 8);
+	addr[5] = (u8) addr_lo;
+	return 0;
+}
+
+/* This is intended to reset a port, not the whole MAC */
+static int mac_reset(struct cmac *mac)
+{
+	int index = mac->instance->index;
+
+	run_table(mac->adapter, vsc7326_portinit[index],
+		  ARRAY_SIZE(vsc7326_portinit[index]));
+
+	return 0;
+}
+
+static int mac_set_rx_mode(struct cmac *mac, struct t1_rx_mode *rm)
+{
+	u32 v;
+	int port = mac->instance->index;
+
+	vsc_read(mac->adapter, REG_ING_FFILT_UM_EN, &v);
+	v |= 1 << 12;
+
+	if (t1_rx_mode_promisc(rm))
+		v &= ~(1 << (port + 16));
+	else
+		v |= 1 << (port + 16);
+
+	vsc_write(mac->adapter, REG_ING_FFILT_UM_EN, v);
+	return 0;
+}
+
+static int mac_set_mtu(struct cmac *mac, int mtu)
+{
+	int port = mac->instance->index;
+
+	if (mtu > MAX_MTU)
+		return -EINVAL;
+
+	/* max_len includes header and FCS */
+	vsc_write(mac->adapter, REG_MAX_LEN(port), mtu + 14 + 4);
+	return 0;
+}
+
+static int mac_set_speed_duplex_fc(struct cmac *mac, int speed, int duplex,
+				   int fc)
+{
+	u32 v;
+	int enable, port = mac->instance->index;
+
+	if (speed >= 0 && speed != SPEED_10 && speed != SPEED_100 &&
+	    speed != SPEED_1000)
+		return -1;
+	if (duplex > 0 && duplex != DUPLEX_FULL)
+		return -1;
+
+	if (speed >= 0) {
+		vsc_read(mac->adapter, REG_MODE_CFG(port), &v);
+		enable = v & 3;             /* save tx/rx enables */
+		v &= ~0xf;
+		v |= 4;                     /* full duplex */
+		if (speed == SPEED_1000)
+			v |= 8;             /* GigE */
+		enable |= v;
+		vsc_write(mac->adapter, REG_MODE_CFG(port), v);
+
+		if (speed == SPEED_1000)
+			v = 0x82;
+		else if (speed == SPEED_100)
+			v = 0x84;
+		else	/* SPEED_10 */
+			v = 0x86;
+		vsc_write(mac->adapter, REG_DEV_SETUP(port), v | 1); /* reset */
+		vsc_write(mac->adapter, REG_DEV_SETUP(port), v);
+		vsc_read(mac->adapter, REG_DBG(port), &v);
+		v &= ~0xff00;
+		if (speed == SPEED_1000)
+			v |= 0x400;
+		else if (speed == SPEED_100)
+			v |= 0x2000;
+		else	/* SPEED_10 */
+			v |= 0xff00;
+		vsc_write(mac->adapter, REG_DBG(port), v);
+
+		vsc_write(mac->adapter, REG_TX_IFG(port),
+			  speed == SPEED_1000 ? 5 : 0x11);
+		if (duplex == DUPLEX_HALF)
+			enable = 0x0;	/* 100 or 10 */
+		else if (speed == SPEED_1000)
+			enable = 0xc;
+		else	/* SPEED_100 or 10 */
+			enable = 0x4;
+		enable |= 0x9 << 10;	/* IFG1 */
+		enable |= 0x6 << 6;	/* IFG2 */
+		enable |= 0x1 << 4;	/* VLAN */
+		enable |= 0x3;		/* RX/TX EN */
+		vsc_write(mac->adapter, REG_MODE_CFG(port), enable);
+
+	}
+
+	vsc_read(mac->adapter, REG_PAUSE_CFG(port), &v);
+	v &= 0xfff0ffff;
+	v |= 0x20000;      /* xon/xoff */
+	if (fc & PAUSE_RX)
+		v |= 0x40000;
+	if (fc & PAUSE_TX)
+		v |= 0x80000;
+	if (fc == (PAUSE_RX | PAUSE_TX))
+		v |= 0x10000;
+	vsc_write(mac->adapter, REG_PAUSE_CFG(port), v);
+	return 0;
+}
+
+static int mac_enable(struct cmac *mac, int which)
+{
+	u32 val;
+	int port = mac->instance->index;
+
+	/* Write the correct WM value when the port is enabled. */
+	vsc_write(mac->adapter, REG_HIGH_LOW_WM(1,port), WM_ENABLE);
+
+	vsc_read(mac->adapter, REG_MODE_CFG(port), &val);
+	if (which & MAC_DIRECTION_RX)
+		val |= 0x2;
+	if (which & MAC_DIRECTION_TX)
+		val |= 1;
+	vsc_write(mac->adapter, REG_MODE_CFG(port), val);
+	return 0;
+}
+
+static int mac_disable(struct cmac *mac, int which)
+{
+	u32 val;
+	int i, port = mac->instance->index;
+
+	/* Reset the port, this also writes the correct WM value */
+	mac_reset(mac);
+
+	vsc_read(mac->adapter, REG_MODE_CFG(port), &val);
+	if (which & MAC_DIRECTION_RX)
+		val &= ~0x2;
+	if (which & MAC_DIRECTION_TX)
+		val &= ~0x1;
+	vsc_write(mac->adapter, REG_MODE_CFG(port), val);
+	vsc_read(mac->adapter, REG_MODE_CFG(port), &val);
+
+	/* Clear stats */
+	for (i = 0; i <= 0x3a; ++i)
+		vsc_write(mac->adapter, CRA(4, port, i), 0);
+
+	/* Clear software counters */
+	memset(&mac->stats, 0, sizeof(struct cmac_statistics));
+
+	return 0;
+}
+
+static void rmon_update(struct cmac *mac, unsigned int addr, u64 *stat)
+{
+	u32 v, lo;
+
+	vsc_read(mac->adapter, addr, &v);
+	lo = *stat;
+	*stat = *stat - lo + v;
+
+	if (v == 0)
+		return;
+
+	if (v < lo)
+		*stat += (1ULL << 32);
+}
+
+static void port_stats_update(struct cmac *mac)
+{
+	struct {
+		unsigned int reg;
+		unsigned int offset;
+	} hw_stats[] = {
+
+#define HW_STAT(reg, stat_name) \
+	{ reg, (&((struct cmac_statistics *)NULL)->stat_name) - (u64 *)NULL }
+
+		/* Rx stats */
+		HW_STAT(RxUnicast, RxUnicastFramesOK),
+		HW_STAT(RxMulticast, RxMulticastFramesOK),
+		HW_STAT(RxBroadcast, RxBroadcastFramesOK),
+		HW_STAT(Crc, RxFCSErrors),
+		HW_STAT(RxAlignment, RxAlignErrors),
+		HW_STAT(RxOversize, RxFrameTooLongErrors),
+		HW_STAT(RxPause, RxPauseFrames),
+		HW_STAT(RxJabbers, RxJabberErrors),
+		HW_STAT(RxFragments, RxRuntErrors),
+		HW_STAT(RxUndersize, RxRuntErrors),
+		HW_STAT(RxSymbolCarrier, RxSymbolErrors),
+		HW_STAT(RxSize1519ToMax, RxJumboFramesOK),
+
+		/* Tx stats (skip collision stats as we are full-duplex only) */
+		HW_STAT(TxUnicast, TxUnicastFramesOK),
+		HW_STAT(TxMulticast, TxMulticastFramesOK),
+		HW_STAT(TxBroadcast, TxBroadcastFramesOK),
+		HW_STAT(TxPause, TxPauseFrames),
+		HW_STAT(TxUnderrun, TxUnderrun),
+		HW_STAT(TxSize1519ToMax, TxJumboFramesOK),
+	}, *p = hw_stats;
+	unsigned int port = mac->instance->index;
+	u64 *stats = (u64 *)&mac->stats;
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(hw_stats); i++)
+		rmon_update(mac, CRA(0x4, port, p->reg), stats + p->offset);
+
+	rmon_update(mac, REG_TX_OK_BYTES(port), &mac->stats.TxOctetsOK);
+	rmon_update(mac, REG_RX_OK_BYTES(port), &mac->stats.RxOctetsOK);
+	rmon_update(mac, REG_RX_BAD_BYTES(port), &mac->stats.RxOctetsBad);
+}
+
+/*
+ * This function is called periodically to accumulate the current values of the
+ * RMON counters into the port statistics.  Since the counters are only 32 bits
+ * some of them can overflow in less than a minute at GigE speeds, so this
+ * function should be called every 30 seconds or so.
+ *
+ * To cut down on reading costs we update only the octet counters at each tick
+ * and do a full update at major ticks, which can be every 30 minutes or more.
+ */
+static const struct cmac_statistics *mac_update_statistics(struct cmac *mac,
+							   int flag)
+{
+	if (flag == MAC_STATS_UPDATE_FULL ||
+	    mac->instance->ticks >= MAJOR_UPDATE_TICKS) {
+		port_stats_update(mac);
+		mac->instance->ticks = 0;
+	} else {
+		int port = mac->instance->index;
+
+		rmon_update(mac, REG_RX_OK_BYTES(port),
+			    &mac->stats.RxOctetsOK);
+		rmon_update(mac, REG_RX_BAD_BYTES(port),
+			    &mac->stats.RxOctetsBad);
+		rmon_update(mac, REG_TX_OK_BYTES(port),
+			    &mac->stats.TxOctetsOK);
+		mac->instance->ticks++;
+	}
+	return &mac->stats;
+}
+
+static void mac_destroy(struct cmac *mac)
+{
+	kfree(mac);
+}
+
+static struct cmac_ops vsc7326_ops = {
+	.destroy                  = mac_destroy,
+	.reset                    = mac_reset,
+	.interrupt_handler        = mac_intr_handler,
+	.interrupt_enable         = mac_intr_enable,
+	.interrupt_disable        = mac_intr_disable,
+	.interrupt_clear          = mac_intr_clear,
+	.enable                   = mac_enable,
+	.disable                  = mac_disable,
+	.set_mtu                  = mac_set_mtu,
+	.set_rx_mode              = mac_set_rx_mode,
+	.set_speed_duplex_fc      = mac_set_speed_duplex_fc,
+	.statistics_update        = mac_update_statistics,
+	.macaddress_get           = mac_get_address,
+	.macaddress_set           = mac_set_address,
+};
+
+static struct cmac *vsc7326_mac_create(adapter_t *adapter, int index)
+{
+	struct cmac *mac;
+	u32 val;
+	int i;
+
+	mac = kzalloc(sizeof(*mac) + sizeof(cmac_instance), GFP_KERNEL);
+	if (!mac)
+		return NULL;
+
+	mac->ops = &vsc7326_ops;
+	mac->instance = (cmac_instance *)(mac + 1);
+	mac->adapter  = adapter;
+
+	mac->instance->index = index;
+	mac->instance->ticks = 0;
+
+	i = 0;
+	do {
+		u32 vhi, vlo;
+
+		vhi = vlo = 0;
+		t1_tpi_read(adapter, (REG_LOCAL_STATUS << 2) + 4, &vlo);
+		udelay(1);
+		t1_tpi_read(adapter, REG_LOCAL_STATUS << 2, &vhi);
+		udelay(5);
+		val = (vhi << 16) | vlo;
+	} while ((++i < 10000) && (val == 0xffffffff));
+
+	return mac;
+}
+
+static int vsc7326_mac_reset(adapter_t *adapter)
+{
+	vsc7326_full_reset(adapter);
+	(void) run_bist_all(adapter);
+	run_table(adapter, vsc7326_reset, ARRAY_SIZE(vsc7326_reset));
+	return 0;
+}
+
+const struct gmac t1_vsc7326_ops = {
+	.stats_update_period = STATS_TICK_SECS,
+	.create              = vsc7326_mac_create,
+	.reset               = vsc7326_mac_reset,
+};