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authorStephen Hemminger <shemminger@osdl.org>2006-12-01 16:36:17 -0800
committerJeff Garzik <jeff@garzik.org>2006-12-02 00:24:49 -0500
commit352c417ddb593de757f0ee1fa490cb5444778c41 (patch)
treedd1047e7611f09511c3ad1432a3f49b553b0e91e /drivers/net/chelsio/vsc7326.c
parentf1d3d38af75789f1b82969b83b69cab540609789 (diff)
[PATCH] chelsio: add 1G swcixw aupport
Add support for 1G versions of Chelsio devices. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/chelsio/vsc7326.c')
-rw-r--r--drivers/net/chelsio/vsc7326.c725
1 files changed, 725 insertions, 0 deletions
diff --git a/drivers/net/chelsio/vsc7326.c b/drivers/net/chelsio/vsc7326.c
new file mode 100644
index 00000000000..85dc3b1dc30
--- /dev/null
+++ b/drivers/net/chelsio/vsc7326.c
@@ -0,0 +1,725 @@
+/* $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)
+ CH_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;
+
+ /* CH_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);
+ /* CH_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 );
+ CH_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))
+ CH_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)
+ CH_ERR("Still in bist read: 0x%x\n", result);
+ else if((result & (1<<8)) != 0x0)
+ CH_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))
+ CH_ERR("No bist address: 0x%x\n", address);
+
+ if( value>255 )
+ CH_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)
+ CH_ERR("Still in bist write: 0x%x\n", result);
+ else if((result & (1<<26)) != 0x0)
+ CH_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)
+ CH_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 sofware 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)
+{
+ int port = mac->instance->index;
+
+ /* Rx stats */
+ 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_RX_UNICAST(port), &mac->stats.RxUnicastFramesOK);
+ rmon_update(mac, REG_RX_MULTICAST(port),
+ &mac->stats.RxMulticastFramesOK);
+ rmon_update(mac, REG_RX_BROADCAST(port),
+ &mac->stats.RxBroadcastFramesOK);
+ rmon_update(mac, REG_CRC(port), &mac->stats.RxFCSErrors);
+ rmon_update(mac, REG_RX_ALIGNMENT(port), &mac->stats.RxAlignErrors);
+ rmon_update(mac, REG_RX_OVERSIZE(port),
+ &mac->stats.RxFrameTooLongErrors);
+ rmon_update(mac, REG_RX_PAUSE(port), &mac->stats.RxPauseFrames);
+ rmon_update(mac, REG_RX_JABBERS(port), &mac->stats.RxJabberErrors);
+ rmon_update(mac, REG_RX_FRAGMENTS(port), &mac->stats.RxRuntErrors);
+ rmon_update(mac, REG_RX_UNDERSIZE(port), &mac->stats.RxRuntErrors);
+ rmon_update(mac, REG_RX_SYMBOL_CARRIER(port),
+ &mac->stats.RxSymbolErrors);
+ rmon_update(mac, REG_RX_SIZE_1519_TO_MAX(port),
+ &mac->stats.RxJumboFramesOK);
+
+ /* Tx stats (skip collision stats as we are full-duplex only) */
+ rmon_update(mac, REG_TX_OK_BYTES(port), &mac->stats.TxOctetsOK);
+ rmon_update(mac, REG_TX_UNICAST(port), &mac->stats.TxUnicastFramesOK);
+ rmon_update(mac, REG_TX_MULTICAST(port),
+ &mac->stats.TxMulticastFramesOK);
+ rmon_update(mac, REG_TX_BROADCAST(port),
+ &mac->stats.TxBroadcastFramesOK);
+ rmon_update(mac, REG_TX_PAUSE(port), &mac->stats.TxPauseFrames);
+ rmon_update(mac, REG_TX_UNDERRUN(port), &mac->stats.TxUnderrun);
+ rmon_update(mac, REG_TX_SIZE_1519_TO_MAX(port),
+ &mac->stats.TxJumboFramesOK);
+}
+
+/*
+ * 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;
+}
+
+struct gmac t1_vsc7326_ops = {
+ .stats_update_period = STATS_TICK_SECS,
+ .create = vsc7326_mac_create,
+ .reset = vsc7326_mac_reset,
+};