Stephen Hemminger wrote:
This is the second public release of my new rewrite of the SysKonnect Gigabit
Ethernet driver. This 0.3 version fixes bugs with link up/down and ethtool
phys_id support. It adds ethtool support for interrupt coalescing and pause
parameters. Performance is good, I am able to get 941 Mbit/sec receiving
(TCP using iperf). But obviously, the driver is still experimental.
This driver doesn't support Yukon2 (yet), and there is report of problem
with D-Link card (Yukon-EC).
The patch should work on 2.6.8 or later, I am testing with 2.6.11-rc1.
Also available as download from http://developer.osdl.org/shemminge/skge
diff -Nru a/drivers/net/Kconfig b/drivers/net/Kconfig
--- a/drivers/net/Kconfig 2005-01-19 13:42:49 -08:00
+++ b/drivers/net/Kconfig 2005-01-19 13:42:49 -08:00
@@ -1980,6 +1980,18 @@
If in doubt, say Y.
+config SKGE
+ tristate "New SysKonnect GigaEthernet support (EXPERIMENTAL)"
+ depends on PCI && EXPERIMENTAL
+ select CRC32
+ ---help---
+ This driver support the Marvell Yukon or SysKonnect SK-98xx/SK-95xx
+ and related Gigabit Ethernet adapters. It is a new smaller driver
+ driver with better performance and more complete ethtool support.
+
+ It does not support the link failover and network management
+ features that "portable" vendor supplied sk98lin driver does.
+
config SK98LIN
tristate "Marvell Yukon Chipset / SysKonnect SK-98xx Support"
depends on PCI
diff -Nru a/drivers/net/Makefile b/drivers/net/Makefile
--- a/drivers/net/Makefile 2005-01-19 13:42:49 -08:00
+++ b/drivers/net/Makefile 2005-01-19 13:42:49 -08:00
@@ -52,6 +52,7 @@
obj-$(CONFIG_FEALNX) += fealnx.o
obj-$(CONFIG_TIGON3) += tg3.o
obj-$(CONFIG_TC35815) += tc35815.o
+obj-$(CONFIG_SKGE) += skge.o
obj-$(CONFIG_SK98LIN) += sk98lin/
obj-$(CONFIG_SKFP) += skfp/
obj-$(CONFIG_VIA_RHINE) += via-rhine.o
diff -Nru a/drivers/net/skge.c b/drivers/net/skge.c
--- /dev/null Wed Dec 31 16:00:00 196900
+++ b/drivers/net/skge.c 2005-01-19 13:42:49 -08:00
@@ -0,0 +1,3268 @@
+/*
+ * New driver for Marvell Yukon chipsent and SysKonnect Gigabit
+ * Ethernet adapters. Based on earlier sk98lin, e100 and
+ * Freebsd if_sk drivers.
+ *
+ * This driver intentionally does not support all the features
+ * of the original driver such as link failover and link management because
+ * those should be done at higher levels.
+ *
+ * Copyright (C) 2004, Stephen Hemminger <shemminger@xxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/pci.h>
+#include <linux/if_vlan.h>
+#include <linux/ip.h>
+#include <linux/udp.h>
+#include <linux/tcp.h>
+#include <linux/delay.h>
+#include <linux/crc32.h>
+
+#include "skge.h"
+
+#define DRV_NAME "skge"
+#define DRV_VERSION "0.3"
+#define PFX DRV_NAME " "
+
+#define DEFAULT_TX_RING_SIZE 128
+#define DEFAULT_RX_RING_SIZE 512
+#define MAX_TX_RING_SIZE 1024
+#define MAX_RX_RING_SIZE 4096
+#define PHY_RETRIES 1000
+#define ETH_JUMBO_MTU 9000
+#define TX_WATCHDOG (2 * HZ)
TX_WATCHDOG seems a little short. Most others are 5.
+#define NAPI_WEIGHT 64
+
+MODULE_DESCRIPTION("SysKonnect Gigabit Ethernet driver");
+MODULE_AUTHOR("Stephen Hemminger <shemminger@xxxxxxxx>");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+static const u32 default_msg
+ = NETIF_MSG_DRV| NETIF_MSG_PROBE| NETIF_MSG_LINK
+ | NETIF_MSG_IFUP| NETIF_MSG_IFDOWN;
+
+static int debug = -1; /* defaults above */
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
+
+static const struct pci_device_id skge_id_table[] = {
+ { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940,
+ PCI_ANY_ID, PCI_ANY_ID },
+ { PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940B,
+ PCI_ANY_ID, PCI_ANY_ID },
+ { PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_GE,
+ PCI_ANY_ID, PCI_ANY_ID },
+ { PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_YU,
+ PCI_ANY_ID, PCI_ANY_ID },
+ { PCI_VENDOR_ID_SYSKONNECT, 0x9E00, /* SK-9Exx 10/100/1000Base-T
Adapter */
+ PCI_ANY_ID, PCI_ANY_ID },
+ { PCI_VENDOR_ID_DLINK, PCI_DEVICE_ID_DLINK_DGE510T,
+ PCI_ANY_ID, PCI_ANY_ID },
+ { PCI_VENDOR_ID_MARVELL, 0x4320, /* Gigabit Ethernet Controller */
+ PCI_ANY_ID, PCI_ANY_ID },
+ { PCI_VENDOR_ID_MARVELL, 0x5005, /* Marvell (11ab), Belkin */
+ PCI_ANY_ID, PCI_ANY_ID },
+ { PCI_VENDOR_ID_CNET, PCI_DEVICE_ID_CNET_GIGACARD,
+ PCI_ANY_ID, PCI_ANY_ID },
+ { PCI_VENDOR_ID_LINKSYS, PCI_DEVICE_ID_LINKSYS_EG1032,
+ PCI_ANY_ID, PCI_ANY_ID },
+ { PCI_VENDOR_ID_LINKSYS, PCI_DEVICE_ID_LINKSYS_EG1064,
+ PCI_ANY_ID, PCI_ANY_ID },
+ { 0 }
+};
+MODULE_DEVICE_TABLE(pci, skge_id_table);
+
+static int skge_up(struct net_device *dev);
+static int skge_down(struct net_device *dev);
+static void skge_tx_clean(struct skge_port *skge);
+static void skge_xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val);
+static void skge_gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val);
+static void genesis_get_stats(struct skge_port *skge, u64 *data);
+static void yukon_get_stats(struct skge_port *skge, u64 *data);
+
+static const int txq[] = { Q_XA1, Q_XA2 };
+static const int rxq[] = { Q_R1, Q_R2 };
+
+/* Don't need to look at whole 16K.
+ * last interesting register is descriptor poll timer.
+ */
+#define SKGE_REGS_LEN (29*128)
+
+static int skge_get_regs_len(struct net_device *dev)
+{
+ return SKGE_REGS_LEN;
+}
+
+/*
+ * Returns copy of control register region
+ * I/O region is divided into banks and certain regions
+ * are unreadable
+ */
+static void skge_get_regs(struct net_device *dev, struct ethtool_regs *regs,
+ void *p)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ unsigned long offs;
+ void __iomem *io = skge->hw->regs;
+ static const unsigned long bankmap
+ = (1<<0) | (1<<2) | (1<<8) | (1<<9)
+ | (1<<12) | (1<<13) | (1<<14) | (1<<15) | (1<<16)
+ | (1<<17) | (1<<20) | (1<<21) | (1<<22) | (1<<23)
+ | (1<<24) | (1<<25) | (1<<26) | (1<<27) | (1<<28);
+
+ regs->version = 1;
+ for (offs = 0; offs < regs->len; offs += 128) {
+ u32 len = min_t(u32, 128, regs->len - offs);
+
+ if (bankmap & (1<<(offs/128)))
+ memcpy_fromio(p + offs, io + offs, len);
+ else
+ memset(p + offs, 0, len);
+ }
+}
+
+static int skge_get_settings(struct net_device *dev,
+ struct ethtool_cmd *ecmd)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+
+ ecmd->transceiver = XCVR_INTERNAL;
+
+ if (iscopper(hw)) {
+ if (hw->chip_id == CHIP_ID_GENESIS)
+ ecmd->supported = SUPPORTED_1000baseT_Full
+ | SUPPORTED_1000baseT_Half
+ | SUPPORTED_Autoneg | SUPPORTED_TP;
+ else {
+ ecmd->supported = SUPPORTED_10baseT_Half
+ | SUPPORTED_10baseT_Full
+ | SUPPORTED_100baseT_Half
+ | SUPPORTED_100baseT_Full
+ | SUPPORTED_1000baseT_Half
+ | SUPPORTED_1000baseT_Full
+ | SUPPORTED_Autoneg| SUPPORTED_TP;
+
+ if (hw->chip_id == CHIP_ID_YUKON)
+ ecmd->supported &= ~SUPPORTED_1000baseT_Half;
+
+ else if (hw->chip_id == CHIP_ID_YUKON_FE)
+ ecmd->supported &= ~(SUPPORTED_1000baseT_Half
+ |
SUPPORTED_1000baseT_Full);
+ }
+
+ ecmd->advertising = ADVERTISED_TP | ADVERTISED_Autoneg;
+ ecmd->port = PORT_TP;
+ ecmd->phy_address = hw->phy_addr;
+
+ ecmd->speed = skge->speed;
+ ecmd->duplex = skge->duplex;
+ } else {
+ ecmd->supported = SUPPORTED_1000baseT_Full
+ | SUPPORTED_FIBRE
+ | SUPPORTED_Autoneg;
+
+ ecmd->advertising = ADVERTISED_1000baseT_Full
+ | ADVERTISED_FIBRE
+ | ADVERTISED_Autoneg;
+ ecmd->port = PORT_FIBRE;
+ ecmd->autoneg = AUTONEG_ENABLE;
+ ecmd->speed = SPEED_1000;
+ ecmd->duplex = DUPLEX_FULL;
+ }
+
+ return 0;
+}
+
+static int skge_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ skge->autoneg = ecmd->autoneg;
+ skge->speed = ecmd->speed;
+ skge->duplex = ecmd->duplex;
needs more sanity checking of values
+ if (netif_running(dev)) {
+ skge_down(dev);
+ skge_up(dev);
+ }
+ return (0);
+}
+
+static void skge_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ strcpy(info->driver, DRV_NAME);
+ strcpy(info->version, DRV_VERSION);
+ strcpy(info->fw_version, "N/A");
+ strcpy(info->bus_info, pci_name(skge->hw->pdev));
+}
+
+/*
+ * The VPD config area contains Vital Product Data, as suggested in
+ * the PCI 2.1 specification. The VPD data is separared into areas
+ * denoted by resource IDs. The SysKonnect VPD contains an ID string
+ * resource (the name of the adapter), a read-only area resource
+ * containing various key/data fields and a read/write area which
+ * can be used to store asset management information or log messages.
+ */
+static int skge_vpd_read(struct pci_dev *pci, u8 *buf, u16 offset, u32 len)
+{
+ int i;
+ u16 reg;
+ unsigned long timeout = jiffies + 2*HZ;
put timeout magic number in definitions section
+ if (offset & 3)
+ return -EINVAL;
+
+ for (i = 0; i < len; i += 4) {
+ pci_write_config_word(pci, PCI_VPD+PCI_VPD_ADDR, offset);
+
+ for(;;) {
+ pci_read_config_word(pci, PCI_VPD+PCI_VPD_ADDR, ®);
+
+ if (reg & PCI_VPD_ADDR_F)
+ break;
+
+ if (time_after(jiffies, timeout)) {
+ printk(KERN_ERR "%s: VPD read timed out\n",
+ pci_name(pci));
+ return -ETIMEDOUT;
+ }
+ cpu_relax();
+ }
+
+ pci_read_config_byte(pci, PCI_VPD+PCI_VPD_DATA, buf+i);
+ pci_read_config_byte(pci, PCI_VPD+PCI_VPD_DATA+1,buf+i+1);
+ pci_read_config_byte(pci, PCI_VPD+PCI_VPD_DATA+2,buf+i+2);
+ pci_read_config_byte(pci, PCI_VPD+PCI_VPD_DATA+3,buf+i+3);
+
+ offset += 4;
+ }
+ return 0;
+}
+
+static const struct skge_stat {
+ char name[ETH_GSTRING_LEN];
+ u16 xmac_offset;
+ u16 gma_offset;
+} skge_stats[] = {
+ { "tx_bytes", XM_TXO_OK_HI, GM_TXO_OK_HI },
+ { "rx_bytes", XM_RXO_OK_HI, GM_RXO_OK_HI },
+
+ { "tx_broadcast", XM_TXF_BC_OK, GM_TXF_BC_OK },
+ { "rx_broadcast", XM_RXF_BC_OK, GM_RXF_BC_OK },
+ { "tx_multicast", XM_TXF_MC_OK, GM_TXF_MC_OK },
+ { "rx_multicast", XM_RXF_MC_OK, GM_RXF_MC_OK },
+ { "tx_unicast", XM_TXF_UC_OK, GM_TXF_UC_OK },
+ { "rx_unicast", XM_RXF_UC_OK, GM_RXF_UC_OK },
+ { "tx_mac_pause", XM_TXF_MPAUSE, GM_TXF_MPAUSE },
+ { "rx_mac_pause", XM_RXF_MPAUSE, GM_RXF_MPAUSE },
+
+ { "collisions", XM_TXF_SNG_COL, GM_TXF_SNG_COL },
+ { "multi_collisions", XM_TXF_MUL_COL, GM_TXF_MUL_COL },
+ { "aborted", XM_TXF_ABO_COL, GM_TXF_ABO_COL},
+ { "late_collision", XM_TXF_LAT_COL, GM_TXF_LAT_COL },
+ { "fifo_underrun", XM_TXE_FIFO_UR, GM_TXE_FIFO_UR },
+ { "fifo_overflow", XM_RXE_FIFO_OV, GM_RXE_FIFO_OV },
+
+ { "rx_toolong", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR },
+ { "rx_jabber", XM_RXF_JAB_PKT, GM_RXF_JAB_PKT },
+ { "rx_runt", XM_RXE_RUNT, GM_RXE_FRAG },
+ { "rx_too_long", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR },
+ { "rx_fcs_error", XM_RXF_FCS_ERR, GM_RXF_FCS_ERR },
+};
+
+static int skge_get_stats_count(struct net_device *dev)
+{
+ return ARRAY_SIZE(skge_stats);
+}
+
+static void skge_get_ethtool_stats(struct net_device *dev,
+ struct ethtool_stats *stats, u64 *data)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ if (skge->hw->chip_id == CHIP_ID_GENESIS)
+ genesis_get_stats(skge, data);
+ else
+ yukon_get_stats(skge, data);
+}
+
+static void skge_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+ int i;
+
+ switch(stringset) {
+ case ETH_SS_STATS:
+ for (i = 0; i < ARRAY_SIZE(skge_stats); i++)
+ memcpy(data + i * ETH_GSTRING_LEN,
+ skge_stats[i].name, ETH_GSTRING_LEN);
+ break;
+ }
+}
+
+static void skge_get_ring_param(struct net_device *dev,
+ struct ethtool_ringparam *p)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ p->rx_max_pending = MAX_RX_RING_SIZE;
+ p->tx_max_pending = MAX_TX_RING_SIZE;
+ p->rx_mini_max_pending = 0;
+ p->rx_jumbo_max_pending = 0;
+
+ p->rx_pending = skge->rx_ring.count;
+ p->tx_pending = skge->tx_ring.count;
+ p->rx_mini_pending = 0;
+ p->rx_jumbo_pending = 0;
+}
+
+static int skge_set_ring_param(struct net_device *dev,
+ struct ethtool_ringparam *p)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ if (p->rx_pending == 0 || p->rx_pending > MAX_RX_RING_SIZE ||
+ p->tx_pending == 0 || p->tx_pending > MAX_TX_RING_SIZE)
+ return -EINVAL;
+
+ skge->rx_ring.count = p->rx_pending;
+ skge->tx_ring.count = p->tx_pending;
+
+ if (netif_running(dev)) {
+ skge_down(dev);
+ skge_up(dev);
+ }
+
+ return 0;
+}
+
+static u32 skge_get_msglevel(struct net_device *netdev)
+{
+ struct skge_port *skge = netdev_priv(netdev);
+ return skge->msg_enable;
+}
+
+static void skge_set_msglevel(struct net_device *netdev, u32 value)
+{
+ struct skge_port *skge = netdev_priv(netdev);
+ skge->msg_enable = value;
+}
+
+static int skge_set_sg(struct net_device *dev, u32 data)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+
+ if (hw->chip_id == CHIP_ID_GENESIS && data)
+ return -EOPNOTSUPP;
+ return ethtool_op_set_sg(dev, data);
+}
+
+static u32 skge_get_rx_csum(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ return skge->rx_csum;
+}
+
+static int skge_set_rx_csum(struct net_device *dev, u32 data)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ if (skge->hw->chip_id == CHIP_ID_GENESIS && data)
+ return -EOPNOTSUPP;
+
+ skge->rx_csum = data;
+ return 0;
+}
+
+static int skge_set_tso(struct net_device *dev, u32 data)
+{
+ if (data)
+ return -EOPNOTSUPP;
+ return 0;
+}
+
+static void skge_get_pauseparam(struct net_device *dev,
+ struct ethtool_pauseparam *ecmd)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ ecmd->tx_pause = (skge->flow_control == FLOW_MODE_LOC_SEND)
+ || (skge->flow_control == FLOW_MODE_SYMMETRIC);
+ ecmd->rx_pause = (skge->flow_control == FLOW_MODE_REM_SEND)
+ || (skge->flow_control == FLOW_MODE_SYMMETRIC);
+
+ ecmd->autoneg = skge->autoneg;
+}
+
+static int skge_set_pauseparam(struct net_device *dev,
+ struct ethtool_pauseparam *ecmd)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ skge->autoneg = ecmd->autoneg;
+ if (ecmd->rx_pause && ecmd->tx_pause)
+ skge->flow_control = FLOW_MODE_SYMMETRIC;
+ else if(ecmd->rx_pause && !ecmd->tx_pause)
+ skge->flow_control = FLOW_MODE_REM_SEND;
+ else if(!ecmd->rx_pause && ecmd->tx_pause)
+ skge->flow_control = FLOW_MODE_LOC_SEND;
+ else
+ skge->flow_control = FLOW_MODE_NONE;
+
+ if (netif_running(dev)) {
+ skge_down(dev);
+ skge_up(dev);
+ }
+ return 0;
+}
+
+static inline u32 skge_freq(const struct skge_hw *hw)
+{
+ if (hw->chip_id == CHIP_ID_GENESIS)
+ return 53215000; /* or: 53.125 MHz */
+ else if (hw->chip_id == CHIP_ID_YUKON_EC)
+ return 125000000; /* or: 125.000 MHz */
+ else
+ return 78215000; /* or: 78.125 MHz */
+}
+
+static int skge_get_coalesce(struct net_device *dev,
+ struct ethtool_coalesce *ecmd)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+
+ ecmd->rx_coalesce_usecs = 0;
+ ecmd->tx_coalesce_usecs = 0;
+
+ if (skge_read32(hw, B2_IRQM_CTRL) & TIM_START) {
+ u32 msk;
+ u64 delay = skge_read32(hw, B2_IRQM_INI);
+
+ pr_debug("irqm = %lld\n", delay);
+ delay *= USEC_PER_SEC;
+
+ do_div(delay, skge_freq(hw));
+ msk = skge_read32(hw, B2_IRQM_MSK);
+
+ if (((port == 0) && (msk & IS_R1_F)) ||
+ ((port == 1) && (msk & IS_R2_F)))
+ ecmd->rx_coalesce_usecs = delay;
+ if (((port == 0) && (msk & IS_XA1_F)) ||
+ ((port == 1) && (msk & IS_XA1_F)))
+ ecmd->tx_coalesce_usecs = delay;
+ }
+
+ return 0;
+}
+
+/* Not interrupt coalescing is per board, not per device */
trivial spelling: s/Not/Note/
+static int skge_set_coalesce(struct net_device *dev,
+ struct ethtool_coalesce *ecmd)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ u32 msk = skge_read32(hw, B2_IRQM_MSK);
+ u32 delay = 25;
+
+ if (ecmd->rx_coalesce_usecs == 0)
+ msk &= ~(port == 0 ? IS_R1_F : IS_R2_F);
+ else if (ecmd->rx_coalesce_usecs < 25 ||
+ ecmd->rx_coalesce_usecs > 33333)
+ return -EINVAL;
+ else {
+ msk |= port == 0 ? IS_R1_F : IS_R2_F;
+ delay = ecmd->rx_coalesce_usecs;
+ }
+
+ if (ecmd->tx_coalesce_usecs == 0)
+ msk &= ~((port == 0) ? IS_XA1_F : IS_XA2_F);
+ else if (ecmd->tx_coalesce_usecs < 25 ||
+ ecmd->tx_coalesce_usecs > 33333)
+ return -EINVAL;
+ else {
+ msk |= (port == 0) ? IS_XA1_F : IS_XA2_F;
+ delay = min(delay, ecmd->rx_coalesce_usecs);
+ }
+
+ skge_write32(hw, B2_IRQM_MSK, msk);
+ if (msk == 0)
+ skge_write32(hw, B2_IRQM_CTRL, TIM_STOP);
+ else {
+ u64 ticks = (u64) delay * skge_freq(hw);
+ pr_debug("ticks * 10^6=%lld\n", ticks);
+ do_div(ticks, USEC_PER_SEC);
+ skge_write32(hw, B2_IRQM_INI, ticks);
+ skge_write32(hw, B2_IRQM_CTRL, TIM_START);
+ }
+ return 0;
+}
+
+static void skge_led_on(struct skge_hw *hw, int port)
+{
+ if (hw->chip_id == CHIP_ID_GENESIS) {
+ skge_write8(hw, SKGEMAC_REG(port, LNK_LED_REG), LINKLED_ON);
+ skge_write8(hw, B0_LED, LED_STAT_ON);
+
+ skge_write8(hw, SKGEMAC_REG(port, RX_LED_TST), LED_T_ON);
+ skge_write32(hw, SKGEMAC_REG(port, RX_LED_VAL), 100);
+ skge_write8(hw, SKGEMAC_REG(port, RX_LED_CTRL), LED_START);
+
+ switch (hw->phy_type) {
+ case SK_PHY_BCOM:
+ skge_xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL,
+ PHY_B_PEC_LED_ON);
+ break;
+ case SK_PHY_LONE:
+ skge_xm_phy_write(hw, port, PHY_LONE_LED_CFG,
+ 0x0800);
+ break;
+ default:
+ skge_write8(hw, SKGEMAC_REG(port, TX_LED_TST),
LED_T_ON);
+ skge_write32(hw, SKGEMAC_REG(port, TX_LED_VAL), 100);
+ skge_write8(hw, SKGEMAC_REG(port, TX_LED_CTRL),
LED_START);
+ }
+ } else {
+ skge_gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
+ skge_gm_phy_write(hw, port, PHY_MARV_LED_OVER,
+ PHY_M_LED_MO_DUP(MO_LED_ON) |
+ PHY_M_LED_MO_10(MO_LED_ON) |
+ PHY_M_LED_MO_100(MO_LED_ON) |
+ PHY_M_LED_MO_1000(MO_LED_ON) |
+ PHY_M_LED_MO_RX(MO_LED_ON));
+ }
+}
+
+static void skge_led_off(struct skge_hw *hw, int port)
+{
+ if (hw->chip_id == CHIP_ID_GENESIS) {
+ skge_write8(hw, SKGEMAC_REG(port, LNK_LED_REG), LINKLED_OFF);
+ skge_write8(hw, B0_LED, LED_STAT_OFF);
+
+ skge_write32(hw, SKGEMAC_REG(port, RX_LED_VAL), 0);
+ skge_write8(hw, SKGEMAC_REG(port, RX_LED_CTRL), LED_T_OFF);
+
+ switch (hw->phy_type) {
+ case SK_PHY_BCOM:
+ skge_xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL,
+ PHY_B_PEC_LED_OFF);
+ break;
+ case SK_PHY_LONE:
+ skge_xm_phy_write(hw, port, PHY_LONE_LED_CFG,
+ PHY_L_LC_LEDT);
+ break;
+ default:
+ skge_write32(hw, SKGEMAC_REG(port, TX_LED_VAL), 0);
+ skge_write8(hw, SKGEMAC_REG(port, TX_LED_CTRL),
LED_T_OFF);
+ }
+ } else {
+ skge_gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
+ skge_gm_phy_write(hw, port, PHY_MARV_LED_OVER,
+ PHY_M_LED_MO_DUP(MO_LED_OFF) |
+ PHY_M_LED_MO_10(MO_LED_OFF) |
+ PHY_M_LED_MO_100(MO_LED_OFF) |
+ PHY_M_LED_MO_1000(MO_LED_OFF) |
+ PHY_M_LED_MO_RX(MO_LED_OFF));
+ }
+}
+
+static void skge_blink_timer(unsigned long data)
+{
+ struct skge_port *skge = (struct skge_port *) data;
+ struct skge_hw *hw = skge->hw;
+ unsigned long flags;
+
+ spin_lock_irqsave(&hw->phy_lock, flags);
+ if (skge->blink_on)
+ skge_led_on(hw, skge->port);
+ else
+ skge_led_off(hw, skge->port);
+ spin_unlock_irqrestore(&hw->phy_lock, flags);
+
+ skge->blink_on = !skge->blink_on;
+ mod_timer(&skge->led_blink, jiffies + HZ/4);
+}
+
+static int skge_phys_id(struct net_device *dev, u32 data)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ if(!data || data > (u32)(MAX_SCHEDULE_TIMEOUT / HZ))
+ data = (u32)(MAX_SCHEDULE_TIMEOUT / HZ);
+
+ /* start blinking */
+ skge->blink_on = 1;
+ mod_timer(&skge->led_blink, jiffies);
+
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(data * HZ);
+ del_timer_sync(&skge->led_blink);
+
+ skge_led_off(skge->hw, skge->port);
+
+ return 0;
+}
+
+static struct ethtool_ops skge_ethtool_ops = {
+ .get_settings = skge_get_settings,
+ .set_settings = skge_set_settings,
+ .get_drvinfo = skge_get_drvinfo,
+ .get_regs_len = skge_get_regs_len,
+ .get_regs = skge_get_regs,
+ .get_msglevel = skge_get_msglevel,
+ .set_msglevel = skge_set_msglevel,
+ .get_link = ethtool_op_get_link,
+ .get_ringparam = skge_get_ring_param,
+ .set_ringparam = skge_set_ring_param,
+ .get_pauseparam = skge_get_pauseparam,
+ .set_pauseparam = skge_set_pauseparam,
+ .get_coalesce = skge_get_coalesce,
+ .set_coalesce = skge_set_coalesce,
+ .get_tso = ethtool_op_get_tso,
+ .set_tso = skge_set_tso,
+ .get_sg = ethtool_op_get_sg,
+ .set_sg = skge_set_sg,
+ .get_tx_csum = ethtool_op_get_tx_csum,
+ .set_tx_csum = ethtool_op_set_tx_csum,
+ .get_rx_csum = skge_get_rx_csum,
+ .set_rx_csum = skge_set_rx_csum,
+ .get_strings = skge_get_strings,
+ .phys_id = skge_phys_id,
+ .get_stats_count = skge_get_stats_count,
+ .get_ethtool_stats = skge_get_ethtool_stats,
+};
+
+/*
+ * Allocate ring elements and chain them together
+ * One-to-one association of board descriptors with ring elements
+ */
+static int skge_ring_alloc(struct skge_ring *ring, void *vaddr, u64 base)
+{
+ struct skge_tx_desc *d;
+ struct skge_element *e;
+ int i;
+
+ ring->start = kmalloc(sizeof(*e)*ring->count, GFP_KERNEL);
+ if (!ring->start)
+ return -ENOMEM;
+
+ for (i = 0, e = ring->start, d = vaddr; i < ring->count; i++, e++, d++)
{
+ e->desc = d;
+ if (i == ring->count - 1) {
+ e->next = ring->start;
+ d->next_offset = base;
+ } else {
+ e->next = e + 1;
+ d->next_offset = base + (i+1) * sizeof(*d);
+ }
+ }
+ ring->to_use = ring->to_clean = ring->start;
+
+ return 0;
+}
+
+/* Setup buffer for receiving */
+static inline int skge_rx_alloc(struct skge_port *skge,
+ struct skge_element *e)
+{
+ unsigned long bufsize = skge->netdev->mtu + ETH_HLEN; /* VLAN? */
+ struct skge_rx_desc *rd = e->desc;
+ struct sk_buff *skb;
+ u64 map;
+
+ skb = dev_alloc_skb(bufsize + NET_IP_ALIGN);
+ if (unlikely(!skb)) {
+ printk(KERN_DEBUG PFX "%s: out of memory for receive\n",
+ skge->netdev->name);
+ return -ENOMEM;
+ }
+
+ skb->dev = skge->netdev;
+ skb_reserve(skb, NET_IP_ALIGN);
+
+ map = pci_map_single(skge->hw->pdev, skb->data, bufsize,
+ PCI_DMA_FROMDEVICE);
check for error
+ rd->dma_lo = map;
+ rd->dma_hi = map >> 32;
+ e->skb = skb;
+ rd->csum1_start = ETH_HLEN;
+ rd->csum2_start = ETH_HLEN;
+ rd->csum1 = 0;
+ rd->csum2 = 0;
+
+ wmb();
+
+ rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | bufsize;
+ pci_unmap_addr_set(e, mapaddr, map);
+ pci_unmap_len_set(e, maplen, bufsize);
+ return 0;
+}
+
+/* Free all unused buffers in receive ring, assumes receiver stopped */
+static void skge_rx_clean(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ struct skge_ring *ring = &skge->rx_ring;
+ struct skge_element *e;
+
+ for (e = ring->to_clean; e != ring->to_use; e = e->next) {
+ struct skge_rx_desc *rd = e->desc;
+ rd->control = 0;
+
+ pci_unmap_single(hw->pdev,
+ pci_unmap_addr(e, mapaddr),
+ pci_unmap_len(e, maplen),
+ PCI_DMA_FROMDEVICE);
+ dev_kfree_skb(e->skb);
+ e->skb = NULL;
+ }
+ ring->to_clean = e;
+}
+
+/* Allocate buffers for receive ring
+ * For receive: to_use is refill location
+ * to_clean is next received frame.
+ *
+ * if (to_use == to_clean)
+ * then ring all frames in ring need buffers
+ * if (to_use->next == to_clean)
+ * then ring all frames in ring have buffers
+ */
+static int skge_rx_fill(struct skge_port *skge)
+{
+ struct skge_ring *ring = &skge->rx_ring;
+ struct skge_element *e;
+ int ret = 0;
+
+ for (e = ring->to_use; e->next != ring->to_clean; e = e->next) {
+ if (skge_rx_alloc(skge, e)) {
+ ret = 1;
+ break;
+ }
+
+ }
+ ring->to_use = e;
+
+ return ret;
+}
+
+static void skge_link_report(struct skge_port *skge)
+{
+ if (!netif_msg_link(skge))
+ return;
+
+ if (netif_carrier_ok(skge->netdev)) {
+ printk(KERN_INFO PFX
+ "%s: Link is up at %d Mbps, %s duplex, flow control
%s\n",
+ skge->netdev->name, skge->speed,
+ skge->duplex == DUPLEX_FULL ? "full" : "half",
+ (skge->flow_control == FLOW_MODE_NONE) ? "none" :
+ (skge->flow_control == FLOW_MODE_LOC_SEND) ? "tx only" :
+ (skge->flow_control == FLOW_MODE_REM_SEND) ? "rx only" :
+ (skge->flow_control == FLOW_MODE_SYMMETRIC) ? "tx and
rx" :
+ "unknown");
+ } else
+ printk(KERN_INFO PFX "%s: Link is down.\n", skge->netdev->name);
+}
+
+static u16 skge_xm_phy_read(struct skge_hw *hw, int port, u16 reg)
+{
+ int i;
+ u16 v;
+
+ skge_xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr);
+ v = skge_xm_read16(hw, port, XM_PHY_DATA);
+ if (hw->phy_type != SK_PHY_XMAC) {
+ for (i = 0; i < PHY_RETRIES; i++) {
+ udelay(1);
+ if (skge_xm_read16(hw, port, XM_MMU_CMD)
+ & XM_MMU_PHY_RDY)
+ goto ready;
+ }
+
+ printk(KERN_WARNING PFX "%s: phy read timed out\n",
+ hw->dev[port]->name);
+ return 0;
+ ready:
+ v = skge_xm_read16(hw, port, XM_PHY_DATA);
+ }
+
+ return v;
+}
+
+static void skge_xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val)
+{
+ int i;
+
+ skge_xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr);
+ for (i = 0; i < PHY_RETRIES; i++) {
+ if (!(skge_xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY))
+ goto ready;
+ cpu_relax();
+ }
+ printk(KERN_WARNING PFX "%s: phy write failed to come ready\n",
+ hw->dev[port]->name);
+
+
+ ready:
+ skge_xm_write16(hw, port, XM_PHY_DATA, val);
+ for (i = 0; i < PHY_RETRIES; i++) {
+ udelay(1);
+ if (!(skge_xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY))
+ return;
+ }
+ printk(KERN_WARNING PFX "%s: phy write timed out\n",
+ hw->dev[port]->name);
+}
+
+static void genesis_init(struct skge_hw *hw)
+{
+ /* set blink source counter */
+ skge_write32(hw, B2_BSC_INI, (SK_BLK_DUR * SK_FACT_53) / 100);
+ skge_write8(hw, B2_BSC_CTRL, BSC_START);
+
+ /* configure mac arbiter */
+ skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR);
+
+ /* configure mac arbiter timeout values */
+ skge_write8(hw, B3_MA_TOINI_RX1, SK_MAC_TO_53);
+ skge_write8(hw, B3_MA_TOINI_RX2, SK_MAC_TO_53);
+ skge_write8(hw, B3_MA_TOINI_TX1, SK_MAC_TO_53);
+ skge_write8(hw, B3_MA_TOINI_TX2, SK_MAC_TO_53);
+
+ skge_write8(hw, B3_MA_RCINI_RX1, 0);
+ skge_write8(hw, B3_MA_RCINI_RX2, 0);
+ skge_write8(hw, B3_MA_RCINI_TX1, 0);
+ skge_write8(hw, B3_MA_RCINI_TX2, 0);
+
+ /* configure packet arbiter timeout */
+ skge_write16(hw, B3_PA_CTRL, PA_RST_CLR);
+ skge_write16(hw, B3_PA_TOINI_RX1, SK_PKT_TO_MAX);
+ skge_write16(hw, B3_PA_TOINI_TX1, SK_PKT_TO_MAX);
+ skge_write16(hw, B3_PA_TOINI_RX2, SK_PKT_TO_MAX);
+ skge_write16(hw, B3_PA_TOINI_TX2, SK_PKT_TO_MAX);
+}
+
+static void genesis_reset(struct skge_hw *hw, int port)
+{
+ int i;
+ u64 zero = 0;
+
+ /* reset the statistics module */
+ skge_xm_write32(hw, port, XM_GP_PORT, XM_GP_RES_STAT);
+ skge_xm_write16(hw, port, XM_IMSK, 0xffff); /* disable XMAC IRQs */
+ skge_xm_write32(hw, port, XM_MODE, 0); /* clear Mode Reg */
+ skge_xm_write16(hw, port, XM_TX_CMD, 0); /* reset TX CMD Reg */
+ skge_xm_write16(hw, port, XM_RX_CMD, 0); /* reset RX CMD Reg */
+
+ /* disable all PHY IRQs */
+ if (hw->phy_type == SK_PHY_BCOM)
+ skge_xm_write16(hw, port, PHY_BCOM_INT_MASK, 0xffff);
+
+ skge_xm_outhash(hw, port, XM_HSM, (u8 *) &zero);
+ for (i = 0; i < 15; i++)
+ skge_xm_outaddr(hw, port, XM_EXM(i), (u8 *) &zero);
+ skge_xm_outhash(hw, port, XM_SRC_CHK, (u8 *) &zero);
+}
+
+
+static void genesis_mac_init(struct skge_hw *hw, int port)
+{
+ struct skge_port *skge = netdev_priv(hw->dev[port]);
+ int i;
+ u32 r;
+ u16 id1;
+ u16 ctrl1, ctrl2, ctrl3, ctrl4, ctrl5;
+
+ /* magic workaround patterns for Broadcom */
+ static const struct {
+ u16 reg;
+ u16 val;
+ } A1hack[] = {
+ { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 },
+ { 0x17, 0x0013 }, { 0x15, 0x0404 }, { 0x17, 0x8006 },
+ { 0x15, 0x0132 }, { 0x17, 0x8006 }, { 0x15, 0x0232 },
+ { 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 },
+ }, C0hack[] = {
+ { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1204 },
+ { 0x17, 0x0013 }, { 0x15, 0x0A04 }, { 0x18, 0x0420 },
+ };
+
+
+ /* initialize Rx, Tx and Link LED */
+ skge_write8(hw, SKGEMAC_REG(port, LNK_LED_REG), LINKLED_ON);
+ skge_write8(hw, SKGEMAC_REG(port, LNK_LED_REG), LINKLED_LINKSYNC_ON);
+
+ skge_write8(hw, SKGEMAC_REG(port, RX_LED_CTRL), LED_START);
+ skge_write8(hw, SKGEMAC_REG(port, TX_LED_CTRL), LED_START);
+
+ /* Unreset the XMAC. */
+ skge_write16(hw, SKGEMAC_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST);
+
+ /*
+ * Perform additional initialization for external PHYs,
+ * namely for the 1000baseTX cards that use the XMAC's
+ * GMII mode.
+ */
+ spin_lock_bh(&hw->phy_lock);
+ if (hw->phy_type != SK_PHY_XMAC) {
+ /* Take PHY out of reset. */
+ r = skge_read32(hw, B2_GP_IO);
+ if (port == 0)
+ r |= GP_DIR_0|GP_IO_0;
+ else
+ r |= GP_DIR_2|GP_IO_2;
+
+ skge_write32(hw, B2_GP_IO, r);
+ skge_read32(hw, B2_GP_IO);
+
+ /* Enable GMII mode on the XMAC. */
+ skge_xm_write16(hw, port, XM_HW_CFG, XM_HW_GMII_MD);
+
+ id1 = skge_xm_phy_read(hw, port, PHY_XMAC_ID1);
+
+ /* Optimize MDIO transfer by suppressing preamble. */
+ skge_xm_write16(hw, port, XM_MMU_CMD,
+ skge_xm_read16(hw, port, XM_MMU_CMD)
+ | XM_MMU_NO_PRE);
+
+ if (id1 == PHY_BCOM_ID1_C0) {
+ /*
+ * Workaround BCOM Errata for the C0 type.
+ * Write magic patterns to reserved registers.
+ */
+ for (i = 0; i < ARRAY_SIZE(C0hack); i++)
+ skge_xm_phy_write(hw, port,
+ C0hack[i].reg, C0hack[i].val);
+
+ } else if (id1 == PHY_BCOM_ID1_A1) {
+ /*
+ * Workaround BCOM Errata for the A1 type.
+ * Write magic patterns to reserved registers.
+ */
+ for (i = 0; i < ARRAY_SIZE(A1hack); i++)
+ skge_xm_phy_write(hw, port,
+ A1hack[i].reg, A1hack[i].val);
+ }
+
+ /*
+ * Workaround BCOM Errata (#10523) for all BCom PHYs.
+ * Disable Power Management after reset.
+ */
+ r = skge_xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL);
+ skge_xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, r |
PHY_B_AC_DIS_PM);
+ }
+
+ /* Dummy read */
+ skge_xm_read16(hw, port, XM_ISRC);
+
+ r = skge_xm_read32(hw, port, XM_MODE);
+ skge_xm_write32(hw, port, XM_MODE, r|XM_MD_CSA);
+
+ /* We don't need the FCS appended to the packet. */
+ r = skge_xm_read16(hw, port, XM_RX_CMD);
+ skge_xm_write16(hw, port, XM_RX_CMD, r | XM_RX_STRIP_FCS);
+
+ /* We want short frames padded to 60 bytes. */
+ r = skge_xm_read16(hw, port, XM_TX_CMD);
+ skge_xm_write16(hw, port, XM_TX_CMD, r | XM_TX_AUTO_PAD);
+
+ /*
+ * Enable the reception of all error frames. This is is
+ * a necessary evil due to the design of the XMAC. The
+ * XMAC's receive FIFO is only 8K in size, however jumbo
+ * frames can be up to 9000 bytes in length. When bad
+ * frame filtering is enabled, the XMAC's RX FIFO operates
+ * in 'store and forward' mode. For this to work, the
+ * entire frame has to fit into the FIFO, but that means
+ * that jumbo frames larger than 8192 bytes will be
+ * truncated. Disabling all bad frame filtering causes
+ * the RX FIFO to operate in streaming mode, in which
+ * case the XMAC will start transfering frames out of the
+ * RX FIFO as soon as the FIFO threshold is reached.
+ */
+ r = skge_xm_read32(hw, port, XM_MODE);
+ skge_xm_write32(hw, port, XM_MODE,
+ XM_MD_RX_CRCE|XM_MD_RX_LONG|XM_MD_RX_RUNT|
+ XM_MD_RX_ERR|XM_MD_RX_IRLE);
+
+ skge_xm_outaddr(hw, port, XM_SA, hw->dev[port]->dev_addr);
+ skge_xm_outaddr(hw, port, XM_EXM(0), hw->dev[port]->dev_addr);
+
+ /*
+ * Bump up the transmit threshold. This helps hold off transmit
+ * underruns when we're blasting traffic from both ports at once.
+ */
+ skge_xm_write16(hw, port, XM_TX_THR, 512);
+
+ /* Configure MAC arbiter */
+ skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR);
+
+ /* configure timeout values */
+ skge_write8(hw, B3_MA_TOINI_RX1, 72);
+ skge_write8(hw, B3_MA_TOINI_RX2, 72);
+ skge_write8(hw, B3_MA_TOINI_TX1, 72);
+ skge_write8(hw, B3_MA_TOINI_TX2, 72);
+
+ skge_write8(hw, B3_MA_RCINI_RX1, 0);
+ skge_write8(hw, B3_MA_RCINI_RX2, 0);
+ skge_write8(hw, B3_MA_RCINI_TX1, 0);
+ skge_write8(hw, B3_MA_RCINI_TX2, 0);
+
+ /* Configure Rx MAC FIFO */
+ skge_write8(hw, SKGEMAC_REG(port, RX_MFF_CTRL2), MFF_RST_CLR);
+ skge_write16(hw, SKGEMAC_REG(port, RX_MFF_CTRL1), MFF_ENA_TIM_PAT);
+ skge_write8(hw, SKGEMAC_REG(port, RX_MFF_CTRL2), MFF_ENA_OP_MD);
+
+ /* Configure Tx MAC FIFO */
+ skge_write8(hw, SKGEMAC_REG(port, TX_MFF_CTRL2), MFF_RST_CLR);
+ skge_write16(hw, SKGEMAC_REG(port, TX_MFF_CTRL1), MFF_TX_CTRL_DEF);
+ skge_write8(hw, SKGEMAC_REG(port, TX_MFF_CTRL2), MFF_ENA_OP_MD);
+
+ if (hw->dev[port]->mtu > ETH_DATA_LEN) {
+ /* Enable frame flushing if jumbo frames used */
+ skge_write16(hw, SKGEMAC_REG(port,RX_MFF_CTRL1), MFF_ENA_FLUSH);
+ } else {
+ /* enable timeout timers if normal frames */
+ skge_write16(hw, B3_PA_CTRL,
+ port == 0 ? PA_ENA_TO_TX1 : PA_ENA_TO_TX2);
+ }
+
+
+ r = skge_xm_read16(hw, port, XM_RX_CMD);
+ if (hw->dev[port]->mtu > ETH_DATA_LEN)
+ skge_xm_write16(hw, port, XM_RX_CMD, r | XM_RX_BIG_PK_OK);
+ else
+ skge_xm_write16(hw, port, XM_RX_CMD, r & ~(XM_RX_BIG_PK_OK));
+
+ switch (hw->phy_type) {
+ case SK_PHY_XMAC:
+ if (skge->autoneg == AUTONEG_ENABLE) {
+ ctrl1 = PHY_X_AN_FD | PHY_X_AN_HD;
+
+ switch (skge->flow_control) {
+ case FLOW_MODE_NONE:
+ ctrl1 |= PHY_X_P_NO_PAUSE;
+ break;
+ case FLOW_MODE_LOC_SEND:
+ ctrl1 |= PHY_X_P_ASYM_MD;
+ break;
+ case FLOW_MODE_SYMMETRIC:
+ ctrl1 |= PHY_X_P_SYM_MD;
+ break;
+ case FLOW_MODE_REM_SEND:
+ ctrl1 |= PHY_X_P_BOTH_MD;
+ break;
+ }
+
+ skge_xm_phy_write(hw, port, PHY_XMAC_AUNE_ADV, ctrl1);
+ ctrl2 = PHY_CT_ANE | PHY_CT_RE_CFG;
+ } else {
+ ctrl2 = 0;
+ if (skge->duplex == DUPLEX_FULL)
+ ctrl2 |= PHY_CT_DUP_MD;
+ }
+
+ skge_xm_phy_write(hw, port, PHY_XMAC_CTRL, ctrl2);
+ break;
+
+ case SK_PHY_BCOM:
+ ctrl1 = PHY_CT_SP1000;
+ ctrl2 = 0;
+ ctrl3 = PHY_SEL_TYPE;
+ ctrl4 = PHY_B_PEC_EN_LTR;
+ ctrl5 = PHY_B_AC_TX_TST;
+
+ if (skge->autoneg == AUTONEG_ENABLE) {
+ /*
+ * Workaround BCOM Errata #1 for the C5 type.
+ * 1000Base-T Link Acquisition Failure in Slave Mode
+ * Set Repeater/DTE bit 10 of the 1000Base-T Control
Register
+ */
+ ctrl2 |= PHY_B_1000C_RD;
+ ctrl2 |= PHY_B_1000C_AFD | PHY_B_1000C_AHD;
+
+ /* Set Flow-control capabilities */
+ switch (skge->flow_control) {
+ case FLOW_MODE_NONE:
+ ctrl3 |= PHY_B_P_NO_PAUSE;
+ break;
+ case FLOW_MODE_LOC_SEND:
+ ctrl3 |= PHY_B_P_ASYM_MD;
+ break;
+ case FLOW_MODE_SYMMETRIC:
+ ctrl3 |= PHY_B_P_SYM_MD;
+ break;
+ case FLOW_MODE_REM_SEND:
+ ctrl3 |= PHY_B_P_BOTH_MD;
+ break;
+ }
+
+ /* Restart Auto-negotiation */
+ ctrl1 |= PHY_CT_ANE | PHY_CT_RE_CFG;
+ } else {
+ if (skge->duplex == DUPLEX_FULL)
+ ctrl1 |= PHY_CT_DUP_MD;
+
+ ctrl2 |= PHY_B_1000C_MSE; /* set it to Slave */
+ }
+
+ skge_xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, ctrl2);
+ skge_xm_phy_write(hw, port, PHY_BCOM_AUNE_ADV, ctrl3);
+
+ if (skge->netdev->mtu > ETH_DATA_LEN) {
+ ctrl4 |= PHY_B_PEC_HIGH_LA;
+ ctrl5 |= PHY_B_AC_LONG_PACK;
+
+ skge_xm_phy_write(hw, port,PHY_BCOM_AUX_CTRL, ctrl5);
+ }
+
+ skge_xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, ctrl4);
+ skge_xm_phy_write(hw, port, PHY_BCOM_CTRL, ctrl1);
+ break;
+ }
+ spin_unlock_bh(&hw->phy_lock);
+
+ /* Clear MIB counters */
+ skge_xm_write16(hw, port, XM_STAT_CMD,
+ XM_SC_CLR_RXC | XM_SC_CLR_TXC);
+ /* Clear two times according to Errata #3 */
+ skge_xm_write16(hw, port, XM_STAT_CMD,
+ XM_SC_CLR_RXC | XM_SC_CLR_TXC);
+
+ /* Start polling for link status */
+ mod_timer(&skge->link_check, jiffies + HZ/10);
+}
+
+static void genesis_stop(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+
+ /* Clear Tx packet arbiter timeout IRQ */
+ skge_write16(hw, B3_PA_CTRL,
+ port == 0 ? PA_CLR_TO_TX1 : PA_CLR_TO_TX2);
+
+ /*
+ * If the transfer stucks at the MAC the STOP command will not
+ * terminate if we don't flush the XMAC's transmit FIFO !
+ */
+ skge_xm_write32(hw, port, XM_MODE,
+ skge_xm_read32(hw, port, XM_MODE)|XM_MD_FTF);
+
+
+ /* Reset the MAC */
+ skge_write16(hw, SKGEMAC_REG(port, TX_MFF_CTRL1), MFF_SET_MAC_RST);
+
+ /* For external PHYs there must be special handling */
+ if (hw->phy_type != SK_PHY_XMAC) {
+ u32 reg = skge_read32(hw, B2_GP_IO);
+
+ if (port == 0) {
+ reg |= GP_DIR_0;
+ reg &= ~GP_IO_0;
+ } else {
+ reg |= GP_DIR_2;
+ reg &= ~GP_IO_2;
+ }
+ skge_write32(hw, B2_GP_IO, reg);
+ skge_read32(hw, B2_GP_IO);
+ }
+
+ skge_xm_write16(hw, port, XM_MMU_CMD,
+ skge_xm_read16(hw, port, XM_MMU_CMD)
+ & ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX));
+
+ skge_xm_read16(hw, port, XM_MMU_CMD);
+}
+
+
+static void genesis_get_stats(struct skge_port *skge, u64 *data)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ int i;
+ unsigned long timeout = jiffies + HZ;
+
+ skge_xm_write16(hw, port,
+ XM_STAT_CMD, XM_SC_SNP_TXC | XM_SC_SNP_RXC);
+
+ /* wait for update to complete */
+ while (skge_xm_read16(hw, port, XM_STAT_CMD)
+ & (XM_SC_SNP_TXC | XM_SC_SNP_RXC)) {
+ if (time_after(jiffies, timeout))
+ break;
+ udelay(10);
+ }
+
+ /* special case for 64 bit octet counter */
+ data[0] = (u64) skge_xm_read32(hw, port, XM_TXO_OK_HI) << 32
+ | skge_xm_read32(hw, port, XM_TXO_OK_LO);
+ data[1] = (u64) skge_xm_read32(hw, port, XM_RXO_OK_HI) << 32
+ | skge_xm_read32(hw, port, XM_RXO_OK_LO);
+
+ for (i = 2; i < ARRAY_SIZE(skge_stats); i++)
+ data[i] = skge_xm_read32(hw, port, skge_stats[i].xmac_offset);
+}
+
+static void genesis_mac_intr(struct skge_hw *hw, int port)
+{
+ struct skge_port *skge = netdev_priv(hw->dev[port]);
+ u16 status = skge_xm_read16(hw, port, XM_ISRC);
+
+ pr_debug("genesis_intr status %x\n", status);
+ if (hw->phy_type == SK_PHY_XMAC) {
+ /* LInk down, start polling for state change */
+ if (status & XM_IS_INP_ASS) {
+ skge_xm_write16(hw, port, XM_IMSK,
+ skge_xm_read16(hw, port, XM_IMSK) |
XM_IS_INP_ASS);
+ mod_timer(&skge->link_check, jiffies + HZ/10);
+ }
+ else if (status & XM_IS_AND)
+ mod_timer(&skge->link_check, jiffies + HZ/10);
+ }
+
+ if (status & XM_IS_TXF_UR) {
+ skge_xm_write32(hw, port, XM_MODE, XM_MD_FTF);
+ ++skge->net_stats.tx_fifo_errors;
+ }
+ if (status & XM_IS_RXF_OV) {
+ skge_xm_write32(hw, port, XM_MODE, XM_MD_FRF);
+ ++skge->net_stats.rx_fifo_errors;
+ }
+}
+
+static void skge_gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val)
+{
+ int i;
+
+ skge_gma_write16(hw, port, GM_SMI_DATA, val);
+ skge_gma_write16(hw, port, GM_SMI_CTRL,
+ GM_SMI_CT_PHY_AD(hw->phy_addr) |
GM_SMI_CT_REG_AD(reg));
+ for (i = 0; i < PHY_RETRIES; i++) {
+ udelay(1);
+
+ if (!(skge_gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY))
+ break;
+ }
+}
+
+static u16 skge_gm_phy_read(struct skge_hw *hw, int port, u16 reg)
+{
+ int i;
+
+ skge_gma_write16(hw, port, GM_SMI_CTRL,
+ GM_SMI_CT_PHY_AD(hw->phy_addr)
+ | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD);
+
+ for (i = 0; i < PHY_RETRIES; i++) {
+ udelay(1);
+ if (skge_gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL)
+ goto ready;
+ }
+
+ printk(KERN_WARNING PFX "%s: phy read timeout\n",
+ hw->dev[port]->name);
+ return 0;
+ ready:
+ return skge_gma_read16(hw, port, GM_SMI_DATA);
+}
+
+static void genesis_link_down(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+
+ pr_debug("genesis_link_down\n");
+
+ netif_carrier_off(skge->netdev);
+ skge_xm_write16(hw, port, XM_MMU_CMD,
+ skge_xm_read16(hw, port, XM_MMU_CMD)
+ & ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX));
+
+ /* dummy read to ensure writing */
+ (void) skge_xm_read16(hw, port, XM_MMU_CMD);
+
+ skge_link_report(skge);
+}
+
+static void genesis_link_up(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ u16 cmd;
+ u32 mode, msk;
+
+ pr_debug("genesis_link_up\n");
+ netif_wake_queue(skge->netdev);
only wake queue is TX is not full
+ netif_carrier_on(skge->netdev);
+
+ cmd = skge_xm_read16(hw, port, XM_MMU_CMD);
+
+ /*
+ * enabling pause frame reception is required for 1000BT
+ * because the XMAC is not reset if the link is going down
+ */
+ if (skge->flow_control == FLOW_MODE_NONE ||
+ skge->flow_control == FLOW_MODE_LOC_SEND)
+ cmd |= XM_MMU_IGN_PF;
+ else
+ /* Enable Pause Frame Reception */
+ cmd &= ~XM_MMU_IGN_PF;
+
+ skge_xm_write16(hw, port, XM_MMU_CMD, cmd);
+
+ mode = skge_xm_read32(hw, port, XM_MODE);
+ if (skge->flow_control == FLOW_MODE_SYMMETRIC ||
+ skge->flow_control == FLOW_MODE_LOC_SEND) {
+ /*
+ * Configure Pause Frame Generation
+ * Use internal and external Pause Frame Generation.
+ * Sending pause frames is edge triggered.
+ * Send a Pause frame with the maximum pause time if
+ * internal oder external FIFO full condition occurs.
+ * Send a zero pause time frame to re-start transmission.
+ */
+ /* XM_PAUSE_DA = '010000C28001' (default) */
+ /* XM_MAC_PTIME = 0xffff (maximum) */
+ /* remember this value is defined in big endian (!) */
+ skge_xm_write16(hw, port, XM_MAC_PTIME, 0xffff);
+
+ mode |= XM_PAUSE_MODE;
+ skge_write16(hw, SKGEMAC_REG(port, RX_MFF_CTRL1),
MFF_ENA_PAUSE);
+ } else {
+ /*
+ * disable pause frame generation is required for 1000BT
+ * because the XMAC is not reset if the link is going down
+ */
+ /* Disable Pause Mode in Mode Register */
+ mode &= ~XM_PAUSE_MODE;
+
+ skge_write16(hw, SKGEMAC_REG(port, RX_MFF_CTRL1),
MFF_DIS_PAUSE);
+ }
+
+ skge_xm_write32(hw, port, XM_MODE, mode);
+
+ msk = XM_DEF_MSK;
+ if (hw->phy_type != SK_PHY_XMAC)
+ msk |= XM_IS_INP_ASS; /* disable GP0 interrupt bit */
+
+ skge_xm_write16(hw, port, XM_IMSK, msk);
+ skge_xm_read16(hw, port, XM_ISRC);
+
+ /* get MMU Command Reg. */
+ cmd = skge_xm_read16(hw, port, XM_MMU_CMD);
+ if (hw->phy_type != SK_PHY_XMAC && skge->duplex == DUPLEX_FULL)
+ cmd |= XM_MMU_GMII_FD;
+
+ if (hw->phy_type == SK_PHY_BCOM) {
+ /*
+ * Workaround BCOM Errata (#10523) for all BCom Phys
+ * Enable Power Management after link up
+ */
+ skge_xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL,
+ skge_xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL)
+ & ~PHY_B_AC_DIS_PM);
+ skge_xm_phy_write(hw, port, PHY_BCOM_INT_MASK,
+ PHY_B_DEF_MSK);
+ }
+
+ /* enable Rx/Tx */
+ skge_xm_write16(hw, port, XM_MMU_CMD,
+ cmd | XM_MMU_ENA_RX | XM_MMU_ENA_TX);
+ skge_link_report(skge);
+}
+
+
+static void genesis_bcom_intr(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ u16 stat = skge_xm_phy_read(hw, port, PHY_BCOM_INT_STAT);
+
+ pr_debug("genesis_bcom intr stat=%x\n", stat);
+
+ /* Workaround BCom Errata:
+ * enable and disable loopback mode if "NO HCD" occurs.
+ */
+ if (stat & PHY_B_IS_NO_HDCL) {
+ u16 ctrl = skge_xm_phy_read(hw, port, PHY_BCOM_CTRL);
+ skge_xm_phy_write(hw, port, PHY_BCOM_CTRL,
+ ctrl | PHY_CT_LOOP);
+ skge_xm_phy_write(hw, port, PHY_BCOM_CTRL,
+ ctrl & ~PHY_CT_LOOP);
+ }
+
+ stat = skge_xm_phy_read(hw, port, PHY_BCOM_STAT);
+ if (stat & (PHY_B_IS_AN_PR | PHY_B_IS_LST_CHANGE)) {
+ u16 aux = skge_xm_phy_read(hw, port, PHY_BCOM_AUX_STAT);
+ if ( !(aux & PHY_B_AS_LS) && netif_carrier_ok(skge->netdev))
+ genesis_link_down(skge);
+
+ else if (stat & PHY_B_IS_LST_CHANGE) {
+ if (aux & PHY_B_AS_AN_C) {
+ switch (aux & PHY_B_AS_AN_RES_MSK) {
+ case PHY_B_RES_1000FD:
+ skge->duplex = DUPLEX_FULL;
+ break;
+ case PHY_B_RES_1000HD:
+ skge->duplex = DUPLEX_HALF;
+ break;
+ }
+
+ switch (aux & PHY_B_AS_PAUSE_MSK) {
+ case PHY_B_AS_PAUSE_MSK:
+ skge->flow_control =
FLOW_MODE_SYMMETRIC;
+ break;
+ case PHY_B_AS_PRR:
+ skge->flow_control = FLOW_MODE_REM_SEND;
+ break;
+ case PHY_B_AS_PRT:
+ skge->flow_control = FLOW_MODE_LOC_SEND;
+ break;
+ default:
+ skge->flow_control = FLOW_MODE_NONE;
+ }
+ skge->speed = SPEED_1000;
+ }
+ genesis_link_up(skge);
+ }
+ else
+ mod_timer(&skge->link_check, jiffies + HZ/10);
+ }
+}
+
+/* Perodic poll of phy status to check for link transistion */
+static void skge_link_timer(unsigned long __arg)
+{
+ struct skge_port *skge = (struct skge_port *) __arg;
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+
+ if (hw->chip_id != CHIP_ID_GENESIS || !netif_running(skge->netdev))
+ return;
+
+ spin_lock_bh(&hw->phy_lock);
+ if (hw->phy_type == SK_PHY_BCOM)
+ genesis_bcom_intr(skge);
+ else {
+ int i;
+ for (i = 0; i < 3; i++)
+ if (skge_xm_read16(hw, port, XM_ISRC) & XM_IS_INP_ASS)
+ break;
+
+ if (i == 3)
+ mod_timer(&skge->link_check, jiffies + HZ/10);
+ else
+ genesis_link_up(skge);
+ }
+ spin_unlock_bh(&hw->phy_lock);
+}
+
+/* Marvell Phy Initailization */
+static void yukon_init(struct skge_hw *hw, int port)
+{
+ struct skge_port *skge = netdev_priv(hw->dev[port]);
+ u16 ctrl, ct1000, adv;
+ u16 ledctrl, ledover;
+
+ pr_debug("yukon_init\n");
+ if (skge->autoneg == AUTONEG_ENABLE) {
+ u16 ectrl = skge_gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
+
+ ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK |
+ PHY_M_EC_MAC_S_MSK);
+ ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ);
+
+ /* on PHY 88E1111 there is a change for downshift control */
+ if (hw->chip_id == CHIP_ID_YUKON_EC)
+ ectrl |= PHY_M_EC_M_DSC_2(0) | PHY_M_EC_DOWN_S_ENA;
+ else
+ ectrl |= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1);
+
+ skge_gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl);
+ }
+
+ ctrl = skge_gm_phy_read(hw, port, PHY_MARV_CTRL);
+ if (skge->autoneg == AUTONEG_DISABLE)
+ ctrl &= ~PHY_CT_ANE;
+
+ ctrl |= PHY_CT_RESET;
+ skge_gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
+
+ ctrl = 0;
+ ct1000 = 0;
+ adv = PHY_SEL_TYPE;
+
+ if (skge->autoneg == AUTONEG_ENABLE) {
+ if (iscopper(hw)) {
+ ct1000 |= PHY_M_1000C_AHD | PHY_M_1000C_AFD;
+ adv |= PHY_M_AN_100_FD | PHY_M_AN_100_HD |
+ PHY_M_AN_10_FD | PHY_M_AN_10_HD;
+
+ /* Set Flow-control capabilities */
+ switch (skge->flow_control) {
+ case FLOW_MODE_NONE:
+ adv |= PHY_B_P_NO_PAUSE;
+ break;
+ case FLOW_MODE_LOC_SEND:
+ adv |= PHY_B_P_ASYM_MD;
+ break;
+ case FLOW_MODE_SYMMETRIC:
+ adv |= PHY_B_P_SYM_MD;
+ break;
+ case FLOW_MODE_REM_SEND:
+ adv |= PHY_B_P_BOTH_MD;
+ break;
+ }
+ } else { /* special defines for FIBER (88E1011S only) */
+ adv |= PHY_M_AN_1000X_AHD | PHY_M_AN_1000X_AFD;
+
+ /* Set Flow-control capabilities */
+ switch (skge->flow_control) {
+ case FLOW_MODE_NONE:
+ adv |= PHY_M_P_NO_PAUSE_X;
+ break;
+ case FLOW_MODE_LOC_SEND:
+ adv |= PHY_M_P_ASYM_MD_X;
+ break;
+ case FLOW_MODE_SYMMETRIC:
+ adv |= PHY_M_P_SYM_MD_X;
+ break;
+ case FLOW_MODE_REM_SEND:
+ adv |= PHY_M_P_BOTH_MD_X;
+ break;
+ }
+ }
+ /* Restart Auto-negotiation */
+ ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG;
+ } else {
+ /* forced speed/duplex settings */
+ ct1000 = PHY_M_1000C_MSE;
+
+ if (skge->duplex == DUPLEX_FULL)
+ ctrl |= PHY_CT_DUP_MD;
+
+ switch (skge->speed) {
+ case SPEED_1000:
+ ctrl |= PHY_CT_SP1000;
+ break;
+ case SPEED_100:
+ ctrl |= PHY_CT_SP100;
+ break;
+ }
+
+ ctrl |= PHY_CT_RESET;
+ }
+
+ if (hw->chip_id != CHIP_ID_YUKON_FE)
+ skge_gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000);
+
+ skge_gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv);
+ skge_gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
+
+ /* Setup Phy LED's */
+ ledctrl = PHY_M_LED_PULS_DUR(PULS_170MS);
+ ledover = 0;
+
+ if (hw->chip_id == CHIP_ID_YUKON_FE) {
+ /* on 88E3082 these bits are at 11..9 (shifted left) */
+ ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) << 1;
+
+ skge_gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR,
+ ((skge_gm_phy_read(hw, port,
PHY_MARV_FE_LED_PAR)
+
+ & ~PHY_M_FELP_LED1_MSK)
+ |
PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_ACT_BL)));
+ } else {
+ /* set Tx LED (LED_TX) to blink mode on Rx OR Tx activity */
+ ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) | PHY_M_LEDC_TX_CTRL;
+
+ /* turn off the Rx LED (LED_RX) */
+ ledover |= PHY_M_LED_MO_RX(MO_LED_OFF);
+ }
+
+ /* disable blink mode (LED_DUPLEX) on collisions */
+ ctrl |= PHY_M_LEDC_DP_CTRL;
+ skge_gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
+
+ if (skge->autoneg == AUTONEG_DISABLE || skge->speed == SPEED_100) {
+ /* turn on 100 Mbps LED (LED_LINK100) */
+ ledover |= PHY_M_LED_MO_100(MO_LED_ON);
+ }
+
+ if (ledover)
+ skge_gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover);
+
+ /* Enable phy interrupt on autonegotiation complete (or link up) */
+ if (skge->autoneg == AUTONEG_ENABLE)
+ skge_gm_phy_write(hw, port, PHY_MARV_INT_MASK,
PHY_M_IS_AN_COMPL);
+ else
+ skge_gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
+}
+
+static void yukon_reset(struct skge_hw *hw, int port)
+{
+ skge_gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);/* disable PHY IRQs */
+ skge_gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */
+ skge_gma_write16(hw, port, GM_MC_ADDR_H2, 0);
+ skge_gma_write16(hw, port, GM_MC_ADDR_H3, 0);
+ skge_gma_write16(hw, port, GM_MC_ADDR_H4, 0);
+
+ skge_gma_write16(hw, port, GM_RX_CTRL,
+ skge_gma_read16(hw, port, GM_RX_CTRL)
+ | GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
+}
+
+static void yukon_mac_init(struct skge_hw *hw, int port)
+{
+ struct skge_port *skge = netdev_priv(hw->dev[port]);
+ int i;
+ u32 reg;
+ const u8 *addr = hw->dev[port]->dev_addr;
+
+ /* WA code for COMA mode -- set PHY reset */
+ if (hw->chip_id == CHIP_ID_YUKON_LITE &&
+ chip_rev(hw) == CHIP_REV_YU_LITE_A3)
+ skge_write32(hw, B2_GP_IO,
+ (skge_read32(hw, B2_GP_IO) | GP_DIR_9 | GP_IO_9));
+
+ /* hard reset */
+ skge_write32(hw, SKGEMAC_REG(port, GPHY_CTRL), GPC_RST_SET);
+ skge_write32(hw, SKGEMAC_REG(port, GMAC_CTRL), GMC_RST_SET);
+
+ /* WA code for COMA mode -- clear PHY reset */
+ if (hw->chip_id == CHIP_ID_YUKON_LITE &&
+ chip_rev(hw) == CHIP_REV_YU_LITE_A3)
+ skge_write32(hw, B2_GP_IO,
+ (skge_read32(hw, B2_GP_IO) | GP_DIR_9)
+ & ~GP_IO_9);
+
+ /* Set hardware config mode */
+ reg = GPC_INT_POL_HI | GPC_DIS_FC | GPC_DIS_SLEEP |
+ GPC_ENA_XC | GPC_ANEG_ADV_ALL_M | GPC_ENA_PAUSE;
+ reg |= iscopper(hw) ? GPC_HWCFG_GMII_COP : GPC_HWCFG_GMII_FIB;
+
+ /* Clear GMC reset */
+ skge_write32(hw, SKGEMAC_REG(port, GPHY_CTRL), reg | GPC_RST_SET);
+ skge_write32(hw, SKGEMAC_REG(port, GPHY_CTRL), reg | GPC_RST_CLR);
+ skge_write32(hw, SKGEMAC_REG(port, GMAC_CTRL), GMC_PAUSE_ON |
GMC_RST_CLR);
+ if (skge->autoneg == AUTONEG_DISABLE) {
+ reg = GM_GPCR_AU_ALL_DIS;
+ skge_gma_write16(hw, port, GM_GP_CTRL,
+ skge_gma_read16(hw, port, GM_GP_CTRL) | reg);
+
+ switch (skge->speed) {
+ case SPEED_1000:
+ reg |= GM_GPCR_SPEED_1000;
+ /* fallthru */
+ case SPEED_100:
+ reg |= GM_GPCR_SPEED_100;
+ }
+
+ if (skge->duplex == DUPLEX_FULL)
+ reg |= GM_GPCR_DUP_FULL;
+ } else
+ reg = GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100 | GM_GPCR_DUP_FULL;
+ switch (skge->flow_control) {
+ case FLOW_MODE_NONE:
+ skge_write32(hw, SKGEMAC_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
+ reg |= GM_GPCR_FC_TX_DIS | GM_GPCR_FC_RX_DIS |
GM_GPCR_AU_FCT_DIS;
+ break;
+ case FLOW_MODE_LOC_SEND:
+ /* disable Rx flow-control */
+ reg |= GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
+ }
+
+ skge_gma_write16(hw, port, GM_GP_CTRL, reg);
+ skge_read16(hw, GMAC_IRQ_SRC);
+
+ spin_lock_bh(&hw->phy_lock);
+ yukon_init(hw, port);
+ spin_unlock_bh(&hw->phy_lock);
+
+ /* MIB clear */
+ reg = skge_gma_read16(hw, port, GM_PHY_ADDR);
+ skge_gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR);
+
+ for (i = 0; i < GM_MIB_CNT_SIZE; i++)
+ skge_gma_read16(hw, port, GM_MIB_CNT_BASE + 8*i);
+ skge_gma_write16(hw, port, GM_PHY_ADDR, reg);
+
+ /* transmit control */
+ skge_gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF));
+
+ /* receive control reg: unicast + multicast + no FCS */
+ skge_gma_write16(hw, port, GM_RX_CTRL,
+ GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA);
+
+ /* transmit flow control */
+ skge_gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff);
+
+ /* transmit parameter */
+ skge_gma_write16(hw, port, GM_TX_PARAM,
+ TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) |
+ TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) |
+ TX_IPG_JAM_DATA(TX_IPG_JAM_DEF));
+
+ /* serial mode register */
+ reg = GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);
+ if (hw->dev[port]->mtu > 1500)
+ reg |= GM_SMOD_JUMBO_ENA;
+
+ skge_gma_write16(hw, port, GM_SERIAL_MODE, reg);
+
+ /* physical address: used for pause frames */
+ skge_gm_set_addr(hw, port, GM_SRC_ADDR_1L, addr);
+ /* virtual address for data */
+ skge_gm_set_addr(hw, port, GM_SRC_ADDR_2L, addr);
+
+ /* enable interrupt mask for counter overflows */
+ skge_gma_write16(hw, port, GM_TX_IRQ_MSK, 0);
+ skge_gma_write16(hw, port, GM_RX_IRQ_MSK, 0);
+ skge_gma_write16(hw, port, GM_TR_IRQ_MSK, 0);
+
+ /* Initialize Mac Fifo */
+
+ /* Configure Rx MAC FIFO */
+ skge_write16(hw, SKGEMAC_REG(port, RX_GMF_FL_MSK), RX_FF_FL_DEF_MSK);
+ reg = GMF_OPER_ON | GMF_RX_F_FL_ON;
+ if (hw->chip_id == CHIP_ID_YUKON_LITE &&
+ chip_rev(hw) == CHIP_REV_YU_LITE_A3)
+ reg &= ~GMF_RX_F_FL_ON;
+ skge_write8(hw, SKGEMAC_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
+ skge_write16(hw, SKGEMAC_REG(port, RX_GMF_CTRL_T), reg);
+ skge_write16(hw, SKGEMAC_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF);
+
+ /* Configure Tx MAC FIFO */
+ skge_write8(hw, SKGEMAC_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);
+ skge_write16(hw, SKGEMAC_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);
+}
+
+static void yukon_stop(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+
+ if (hw->chip_id == CHIP_ID_YUKON_LITE &&
+ chip_rev(hw) == CHIP_REV_YU_LITE_A3) {
+ skge_write32(hw, B2_GP_IO,
+ skge_read32(hw, B2_GP_IO) | GP_DIR_9 | GP_IO_9);
+ }
+
+ skge_gma_write16(hw, port, GM_GP_CTRL,
+ skge_gma_read16(hw, port, GM_GP_CTRL)
+ & ~(GM_GPCR_RX_ENA|GM_GPCR_RX_ENA));
+ skge_gma_read16(hw, port, GM_GP_CTRL);
+
+ /* set GPHY Control reset */
+ skge_gma_write32(hw, port, GPHY_CTRL, GPC_RST_SET);
+ skge_gma_write32(hw, port, GMAC_CTRL, GMC_RST_SET);
+}
+
+static void yukon_get_stats(struct skge_port *skge, u64 *data)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ int i;
+
+ data[0] = (u64) skge_gma_read32(hw, port, GM_TXO_OK_HI) << 32
+ | skge_gma_read32(hw, port, GM_TXO_OK_LO);
+ data[1] = (u64) skge_gma_read32(hw, port, GM_RXO_OK_HI) << 32
+ | skge_gma_read32(hw, port, GM_RXO_OK_LO);
+
+ for (i = 2; i < ARRAY_SIZE(skge_stats); i++)
+ data[i] = skge_gma_read32(hw, port,
+ skge_stats[i].gma_offset);
+}
+
+static void yukon_mac_intr(struct skge_hw *hw, int port)
+{
+ struct skge_port *skge = netdev_priv(hw->dev[port]);
+ u8 status = skge_read8(hw, SKGEMAC_REG(port, GMAC_IRQ_SRC));
+
+ pr_debug("yukon_intr status %x\n", status);
+ if (status & GM_IS_RX_FF_OR) {
+ ++skge->net_stats.rx_fifo_errors;
+ skge_gma_write8(hw, port, RX_GMF_CTRL_T, GMF_CLI_RX_FO);
+ }
+ if (status & GM_IS_TX_FF_UR) {
+ ++skge->net_stats.tx_fifo_errors;
+ skge_gma_write8(hw, port, TX_GMF_CTRL_T, GMF_CLI_TX_FU);
+ }
+
+}
+
+static u16 yukon_speed(const struct skge_hw *hw, u16 aux)
+{
+ if (hw->chip_id == CHIP_ID_YUKON_FE)
+ return (aux & PHY_M_PS_SPEED_100) ? SPEED_100 : SPEED_10;
+
+ switch(aux & PHY_M_PS_SPEED_MSK) {
+ case PHY_M_PS_SPEED_1000:
+ return SPEED_1000;
+ case PHY_M_PS_SPEED_100:
+ return SPEED_100;
+ default:
+ return SPEED_10;
+ }
+}
+
+static void yukon_link_up(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ u16 reg;
+
+ pr_debug("yukon_link_up\n");
+ netif_wake_queue(skge->netdev);
only wake queue if TX is not full
+ netif_carrier_on(skge->netdev);
+
+ /* Enable Transmit FIFO Underrun */
+ skge_write8(hw, GMAC_IRQ_MSK, GMAC_DEF_MSK);
+
+ reg = skge_gma_read16(hw, port, GM_GP_CTRL);
+ if (skge->duplex == DUPLEX_FULL || skge->autoneg == AUTONEG_ENABLE)
+ reg |= GM_GPCR_DUP_FULL;
+
+ /* enable Rx/Tx */
+ reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA;
+ skge_gma_write16(hw, port, GM_GP_CTRL, reg);
+
+ skge_gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
+ skge_link_report(skge);
+}
+
+static void yukon_link_down(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+
+ netif_carrier_off(skge->netdev);
+
+ pr_debug("yukon_link_down\n");
+ skge_gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);
+ skge_gm_phy_write(hw, port, GM_GP_CTRL,
+ skge_gm_phy_read(hw, port, GM_GP_CTRL)
+ & ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA));
+
+ if (hw->chip_id != CHIP_ID_YUKON_FE &&
+ skge->flow_control == FLOW_MODE_REM_SEND) {
+ /* restore Asymmetric Pause bit */
+ skge_gm_phy_write(hw, port, PHY_MARV_AUNE_ADV,
+ skge_gm_phy_read(hw, port,
+ PHY_MARV_AUNE_ADV)
+ | PHY_M_AN_ASP);
+
+ }
+
+ yukon_reset(hw, port);
+ skge_link_report(skge);
+ yukon_init(hw, port);
+}
+
+static void yukon_phy_intr(struct skge_port *skge)
+{
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ const char *reason = NULL;
+ u16 istatus, phystat;
+
+ istatus = skge_gm_phy_read(hw, port, PHY_MARV_INT_STAT);
+ phystat = skge_gm_phy_read(hw, port, PHY_MARV_PHY_STAT);
+ pr_debug("yukon phy intr istat=%x phy_stat=%x\n", istatus, phystat);
+
+ if (istatus & PHY_M_IS_AN_COMPL) {
+ if (skge_gm_phy_read(hw, port, PHY_MARV_AUNE_LP)
+ & PHY_M_AN_RF) {
+ reason = "remote fault";
+ goto failed;
+ }
+
+ if (!(hw->chip_id == CHIP_ID_YUKON_FE || hw->chip_id ==
CHIP_ID_YUKON_EC)
+ && (skge_gm_phy_read(hw, port, PHY_MARV_1000T_STAT)
+ & PHY_B_1000S_MSF)) {
+ reason = "master/slave fault";
+ goto failed;
+ }
+
+ if (!(phystat & PHY_M_PS_SPDUP_RES)) {
+ reason = "speed/duplex";
+ goto failed;
+ }
+
+ skge->duplex = (phystat & PHY_M_PS_FULL_DUP)
+ ? DUPLEX_FULL : DUPLEX_HALF;
+ skge->speed = yukon_speed(hw, phystat);
+
+ /* Tx & Rx Pause Enabled bits are at 9..8 */
+ if (hw->chip_id == CHIP_ID_YUKON_XL)
+ phystat >>= 6;
+
+ /* We are using IEEE 802.3z/D5.0 Table 37-4 */
+ switch (phystat & PHY_M_PS_PAUSE_MSK) {
+ case PHY_M_PS_PAUSE_MSK:
+ skge->flow_control = FLOW_MODE_SYMMETRIC;
+ break;
+ case PHY_M_PS_RX_P_EN:
+ skge->flow_control = FLOW_MODE_REM_SEND;
+ break;
+ case PHY_M_PS_TX_P_EN:
+ skge->flow_control = FLOW_MODE_LOC_SEND;
+ break;
+ default:
+ skge->flow_control = FLOW_MODE_NONE;
+ }
+
+ if (skge->flow_control == FLOW_MODE_NONE ||
+ (skge->speed < SPEED_1000 && skge->duplex == DUPLEX_HALF))
+ skge_write8(hw, SKGEMAC_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
+ else
+ skge_write8(hw, SKGEMAC_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
+ yukon_link_up(skge);
+ return;
+ }
+
+ if (istatus & PHY_M_IS_LSP_CHANGE)
+ skge->speed = yukon_speed(hw, phystat);
+
+ if (istatus & PHY_M_IS_DUP_CHANGE)
+ skge->duplex = (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL :
DUPLEX_HALF;
+ if (istatus & PHY_M_IS_LST_CHANGE) {
+ if (phystat & PHY_M_PS_LINK_UP)
+ yukon_link_up(skge);
+ else
+ yukon_link_down(skge);
+ }
+ return;
+ failed:
+ printk(KERN_ERR PFX "%s: autonegotiation failed (%s)\n",
+ skge->netdev->name, reason);
+
+ /* XXX restart autonegotiation? */
+}
+
+static void skge_ramset(struct skge_hw *hw, u16 q, u32 start, size_t len)
+{
+ u32 end;
+
+ start /= 8;
+ len /= 8;
+ end = start + len - 1;
+
+ skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR);
+ skge_write32(hw, RB_ADDR(q, RB_START), start);
+ skge_write32(hw, RB_ADDR(q, RB_WP), start);
+ skge_write32(hw, RB_ADDR(q, RB_RP), start);
+ skge_write32(hw, RB_ADDR(q, RB_END), end);
+
+ if (q == Q_R1 || q == Q_R2) {
+ /* Set thresholds on receive queue's */
+ skge_write32(hw, RB_ADDR(q, RB_RX_UTPP),
+ start + (2*len)/3);
+ skge_write32(hw, RB_ADDR(q, RB_RX_LTPP),
+ start + (len/3));
+ } else {
+ /* Enable store & forward on Tx queue's because
+ * Tx FIFO is only 4K on Genesis and 1K on Yukon
+ */
+ skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD);
+ }
+
+ skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD);
+}
+
+/* Setup Bus Memory Interface */
+static void skge_qset(struct skge_port *skge, u16 q,
+ const struct skge_element *e)
+{
+ struct skge_hw *hw = skge->hw;
+ u32 watermark = 0x600;
+ u64 base = skge->dma + (e->desc - skge->mem);
+
+ /* optimization to reduce window on 32bit/33mhz */
+ if ((skge_read16(hw, B0_CTST) & (CS_BUS_CLOCK | CS_BUS_SLOT_SZ)) == 0)
+ watermark /= 2;
+
+ skge_write32(hw, Q_ADDR(q, Q_CSR), CSR_CLR_RESET);
+ skge_write32(hw, Q_ADDR(q, Q_F), watermark);
+ skge_write32(hw, Q_ADDR(q, Q_DA_H), (u32)(base >> 32));
+ skge_write32(hw, Q_ADDR(q, Q_DA_L), (u32)base);
+}
+
+static int skge_up(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ u32 chunk, ram_addr;
+ size_t rx_size, tx_size;
+ int err;
+
+ if (netif_msg_ifup(skge))
+ printk(KERN_INFO PFX "%s: enabling interface\n", dev->name);
+
+ rx_size = skge->rx_ring.count * sizeof(struct skge_rx_desc);
+ tx_size = skge->tx_ring.count * sizeof(struct skge_tx_desc);
+ skge->mem_size = tx_size + rx_size;
+ skge->mem = pci_alloc_consistent(hw->pdev, skge->mem_size, &skge->dma);
+ if (!skge->mem)
+ return -ENOMEM;
+
+ memset(skge->mem, 0, skge->mem_size);
+
+ if ((err = skge_ring_alloc(&skge->rx_ring, skge->mem, skge->dma)))
+ goto free_pci_mem;
+
+ if (skge_rx_fill(skge))
+ goto free_rx_ring;
+
+ if ((err = skge_ring_alloc(&skge->tx_ring, skge->mem + rx_size,
+ skge->dma + rx_size)))
+ goto free_rx_ring;
+
+ skge->tx_avail = skge->tx_ring.count - 1;
+
+ /* Initialze MAC */
+ if (hw->chip_id == CHIP_ID_GENESIS)
+ genesis_mac_init(hw, port);
+ else
+ yukon_mac_init(hw, port);
+
+ /* Configure RAMbuffers */
+ chunk = hw->ram_size / (isdualport(hw) ? 4 : 2);
+ ram_addr = hw->ram_offset + 2 * chunk * port;
+
+ skge_ramset(hw, rxq[port], ram_addr, chunk);
+ skge_qset(skge, rxq[port], skge->rx_ring.to_clean);
+
+ BUG_ON(skge->tx_ring.to_use != skge->tx_ring.to_clean);
+ skge_ramset(hw, txq[port], ram_addr+chunk, chunk);
+ skge_qset(skge, txq[port], skge->tx_ring.to_use);
+
+ /* Start receiver BMU */
+ wmb();
+ skge_write8(hw, Q_ADDR(rxq[port], Q_CSR), CSR_START | CSR_IRQ_CL_F);
+
+ pr_debug("skge_up completed\n");
+ return 0;
+
+ free_rx_ring:
+ skge_rx_clean(skge);
+ kfree(skge->rx_ring.start);
+ free_pci_mem:
+ pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma);
+
+ return err;
+}
+
+static int skge_down(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+
+ if (netif_msg_ifdown(skge))
+ printk(KERN_INFO PFX "%s: disabling interface\n", dev->name);
+
+ netif_stop_queue(dev);
+
+ /* Stop transmitter */
+ skge_write8(hw, Q_ADDR(txq[port], Q_CSR), CSR_STOP);
+ skge_write32(hw, RB_ADDR(txq[port], RB_CTRL),
+ RB_RST_SET|RB_DIS_OP_MD);
+
+ if (hw->chip_id == CHIP_ID_GENESIS)
+ genesis_stop(skge);
+ else
+ yukon_stop(skge);
+
+ /* Disable Force Sync bit and Enable Alloc bit */
+ skge_write8(hw, SKGEMAC_REG(port, TXA_CTRL),
+ TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC);
+
+ /* Stop Interval Timer and Limit Counter of Tx Arbiter */
+ skge_write32(hw, SKGEMAC_REG(port, TXA_ITI_INI), 0L);
+ skge_write32(hw, SKGEMAC_REG(port, TXA_LIM_INI), 0L);
+
+ /* Reset PCI FIFO */
+ skge_write32(hw, Q_ADDR(txq[port], Q_CSR), CSR_SET_RESET);
+ skge_write32(hw, RB_ADDR(txq[port], RB_CTRL), RB_RST_SET);
+
+ /* Reset the RAM Buffer async Tx queue */
+ skge_write8(hw, RB_ADDR(port == 0 ? Q_XA1 : Q_XA2, RB_CTRL),
RB_RST_SET);
+ /* stop receiver */
+ skge_write8(hw, Q_ADDR(rxq[port], Q_CSR), CSR_STOP);
+ skge_write32(hw, RB_ADDR(port ? Q_R2 : Q_R1, RB_CTRL),
+ RB_RST_SET|RB_DIS_OP_MD);
+ skge_write32(hw, Q_ADDR(rxq[port], Q_CSR), CSR_SET_RESET);
+
+ if (hw->chip_id == CHIP_ID_GENESIS) {
+ skge_write8(hw, SKGEMAC_REG(port, TX_MFF_CTRL2), MFF_RST_SET);
+ skge_write8(hw, SKGEMAC_REG(port, RX_MFF_CTRL2), MFF_RST_SET);
+ skge_write8(hw, SKGEMAC_REG(port, TX_LED_CTRL), LED_STOP);
+ skge_write8(hw, SKGEMAC_REG(port, RX_LED_CTRL), LED_STOP);
+ } else {
+ skge_write8(hw, SKGEMAC_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
+ skge_write8(hw, SKGEMAC_REG(port, TX_GMF_CTRL_T), GMF_RST_SET);
+ }
+
+ /* turn off led's */
+ skge_write16(hw, B0_LED, LED_STAT_OFF);
+
+ skge_tx_clean(skge);
+ skge_rx_clean(skge);
+
+ kfree(skge->rx_ring.start);
+ kfree(skge->tx_ring.start);
+ pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma);
+ return 0;
+}
+
+static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+ struct skge_ring *ring = &skge->tx_ring;
+ struct skge_element *e;
+ struct skge_tx_desc *td;
+ int i;
+ u32 control, len;
+ u64 map;
+ unsigned long flags;
+
+ if(unlikely(skb->len <= 0)) {
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+ }
why does this check exist? is it ever actually tripped?
+ len = skb_headlen(skb);
+ skb = skb_padto(skb, ETH_ZLEN);
+ if (!skb)
+ return NETDEV_TX_OK;
+
+ local_irq_save(flags);
+ if (!spin_trylock(&skge->tx_lock)) {
+ /* Collision - tell upper layer to requeue */
+ local_irq_restore(flags);
+ return NETDEV_TX_LOCKED;
+ }
+
+ if (unlikely(skge->tx_avail < skb_shinfo(skb)->nr_frags +1)) {
+ netif_stop_queue(dev);
+ spin_unlock_irqrestore(&skge->tx_lock, flags);
+
+ printk(KERN_WARNING PFX "%s: ring full when queue awake!\n",
+ dev->name);
+ return NETDEV_TX_BUSY;
+ }
+
+ e = ring->to_use;
+ td = e->desc;
+ e->skb = skb;
+ map = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE);
check return value
+ pci_unmap_addr_set(e, mapaddr, map);
+ pci_unmap_len_set(e, maplen, len);
+
+ td->dma_lo = map;
+ td->dma_hi = map >> 32;
+
+ if (skb->ip_summed == CHECKSUM_HW) {
+ const struct iphdr *ip
+ = (const struct iphdr *) skb->h.raw;
+ u32 offset = skb->h.raw - skb->data;
+
+ /*
+ ** We have to use the opcode for tcp here, because the
+ ** opcode for udp is not working in the hardware yet
+ ** (Revision 2.0)
+ */
+ if (ip->protocol == IPPROTO_UDP &&
+ chip_rev(hw) == 0 && hw->chip_id == CHIP_ID_YUKON)
+ control = BMU_TCP_CHECK;
+ else
+ control = BMU_UDP_CHECK;
+
+ td->csum_startval = 0;
+ td->csum_startpos = offset;
+ td->csum_writepos = offset + skb->csum;
+ } else
+ control = BMU_CHECK;
+
+ if (!skb_shinfo(skb)->nr_frags) {
+ /* single buffer i.e. no fragments */
+ control |= BMU_EOF| BMU_IRQ_EOF;
+ } else {
+ /* multiple fragments (note always hardware checksum) */
+ struct skge_tx_desc *tf = td;
+
+ control |= BMU_STFWD;
+
+ for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+ skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+
+ map = pci_map_page(hw->pdev, frag->page,
frag->page_offset,
+ frag->size, PCI_DMA_TODEVICE);
+
+ e = e->next;
+ e->skb = NULL;
+ tf = e->desc;
+ tf->dma_lo = map;
+ tf->dma_hi = (u64) map >> 32;
+ pci_unmap_addr_set(e, mapaddr, map);
+ pci_unmap_len_set(e, maplen, frag->size);
+
+ tf->control = BMU_OWN | BMU_SW | BMU_STFWD | control |
frag->size;
+ }
+ tf->control |= BMU_EOF | BMU_IRQ_EOF;
+ }
+ /* Make sure all the chained buffers are ready before
+ * updating start of chain.
+ */
+ wmb();
+
+ td->control = BMU_OWN | BMU_SW | BMU_STF | control | len;
+ wmb();
+
+ skge_write8(skge->hw, Q_ADDR(txq[skge->port], Q_CSR), CSR_START);
+
+ if (netif_msg_tx_queued(skge))
+ printk(KERN_DEBUG "%s: tx queued, slot %d, len %d\n",
+ dev->name, e - ring->start, skb->len);
+
+ ring->to_use = e->next;
+ skge->tx_avail -= skb_shinfo(skb)->nr_frags + 1;
+ if (skge->tx_avail <= MAX_SKB_FRAGS + 1) {
+ pr_debug("%s: transmit queue full\n", dev->name);
+ netif_stop_queue(dev);
+ }
+
+ skge->net_stats.tx_packets++;
+ skge->net_stats.tx_bytes += skb->len;
+
+ dev->trans_start = jiffies;
+ spin_unlock_irqrestore(&skge->tx_lock, flags);
+
+ return NETDEV_TX_OK;
+}
+
+static inline void skge_tx_free(struct skge_hw *hw, struct skge_element *e)
+{
+ if (e->skb) {
+ pci_unmap_single(hw->pdev,
+ pci_unmap_addr(e, mapaddr),
+ pci_unmap_len(e, maplen),
+ PCI_DMA_TODEVICE);
+ dev_kfree_skb_any(e->skb);
+ e->skb = NULL;
+ } else {
+ pci_unmap_page(hw->pdev,
+ pci_unmap_addr(e, mapaddr),
+ pci_unmap_len(e, maplen),
+ PCI_DMA_TODEVICE);
+ }
+}
+
+static void skge_tx_clean(struct skge_port *skge)
+{
+ struct skge_ring *ring = &skge->tx_ring;
+ struct skge_element *e;
+ unsigned long flags;
+
+ spin_lock_irqsave(&skge->tx_lock, flags);
+ for (e = ring->to_clean; e != ring->to_use; e = e->next) {
+ ++skge->tx_avail;
+ skge_tx_free(skge->hw, e);
+ }
+ ring->to_clean = e;
+ spin_unlock_irqrestore(&skge->tx_lock, flags);
+}
+
+static void skge_tx_timeout(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ if (netif_msg_timer(skge))
+ printk(KERN_DEBUG PFX "%s: tx timeout\n", dev->name);
+
+ skge_write8(skge->hw, Q_ADDR(txq[skge->port], Q_CSR), CSR_STOP);
+ skge_tx_clean(skge);
+}
+
+static int skge_change_mtu(struct net_device *dev, int new_mtu)
+{
+ int err = 0;
+
+ if(new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
+ return -EINVAL;
+
+ dev->mtu = new_mtu;
+
+ if (netif_running(dev)) {
+ skge_down(dev);
+ skge_up(dev);
+ }
+
+ return err;
+}
+
+static void genesis_set_multicast(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ int i, count = dev->mc_count;
+ struct dev_mc_list *list = dev->mc_list;
+ u32 mode;
+ u8 filter[8];
+
+ mode = skge_xm_read32(hw, port, XM_MODE);
+ mode |= XM_MD_ENA_HASH;
+ if (dev->flags & IFF_PROMISC)
+ mode |= XM_MD_ENA_PROM;
+ else
+ mode &= ~XM_MD_ENA_PROM;
+
+ if (dev->flags & IFF_ALLMULTI)
+ memset(filter, 0xff, sizeof(filter));
+ else {
+ memset(filter, 0, sizeof(filter));
+ for(i = 0; list && i < count; i++, list = list->next) {
+ u32 crc = crc32_le(~0, list->dmi_addr, ETH_ALEN);
+ u8 bit = 63 - (crc & 63);
+
+ filter[bit/8] |= 1 << (bit%8);
+ }
for some large value of dev->mc_count, you should just use IFF_ALLMULTI
behavior.
+ skge_xm_outhash(hw, port, XM_HSM, filter);
+
+ skge_xm_write32(hw, port, XM_MODE, mode);
+}
+
+static void yukon_set_multicast(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+ int port = skge->port;
+ struct dev_mc_list *list = dev->mc_list;
+ u16 reg;
+ u8 filter[8];
+
+ memset(filter, 0, sizeof(filter));
+
+ reg = skge_gma_read16(hw, port, GM_RX_CTRL);
+ reg |= GM_RXCR_UCF_ENA;
+
+ if (dev->flags & IFF_PROMISC) /* promiscious */
+ reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
+ else if (dev->flags & IFF_ALLMULTI) /* all multicast */
+ memset(filter, 0xff, sizeof(filter));
+ else if (dev->mc_count == 0) /* no multicast */
+ reg &= ~GM_RXCR_MCF_ENA;
+ else {
+ int i;
+ reg |= GM_RXCR_MCF_ENA;
+
+ for(i = 0; list && i < dev->mc_count; i++, list = list->next) {
+ u32 bit = ether_crc(ETH_ALEN, list->dmi_addr) & 0x3f;
+ filter[bit/8] |= 1 << (bit%8);
+ }
+ }
ditto
+ skge_gma_write16(hw, port, GM_MC_ADDR_H1,
+ (u16)filter[0] | ((u16)filter[1] << 8));
+ skge_gma_write16(hw, port, GM_MC_ADDR_H2,
+ (u16)filter[2] | ((u16)filter[3] << 8));
+ skge_gma_write16(hw, port, GM_MC_ADDR_H3,
+ (u16)filter[4] | ((u16)filter[5] << 8));
+ skge_gma_write16(hw, port, GM_MC_ADDR_H4,
+ (u16)filter[6] | ((u16)filter[7] << 8));
+
+ skge_gma_write16(hw, port, GM_RX_CTRL, reg);
+}
+
+static inline int bad_phy_status(const struct skge_hw *hw, u32 status)
+{
+ if (hw->chip_id == CHIP_ID_GENESIS)
+ return (status & (XMR_FS_ERR | XMR_FS_2L_VLAN)) != 0;
+ else
+ return (status & GMR_FS_ANY_ERR) ||
+ (status & GMR_FS_RX_OK) == 0;
+}
+
+static void skge_rx_error(struct skge_port *skge, int slot,
+ u32 control, u32 status)
+{
+ if (netif_msg_rx_err(skge))
+ printk(KERN_DEBUG PFX "%s: rx err, slot %d control 0x%x status
0x%x\n",
+ skge->netdev->name, slot, control, status);
+
+ if ((control & (BMU_EOF|BMU_STF)) != (BMU_STF|BMU_EOF)
+ || (control & BMU_BBC) > skge->netdev->mtu + VLAN_ETH_HLEN)
+ skge->net_stats.rx_length_errors++;
+ else {
+ if (skge->hw->chip_id == CHIP_ID_GENESIS) {
+ if (status & (XMR_FS_RUNT|XMR_FS_LNG_ERR))
+ skge->net_stats.rx_length_errors++;
+ if (status & XMR_FS_FRA_ERR)
+ skge->net_stats.rx_frame_errors++;
+ if (status & XMR_FS_FCS_ERR)
+ skge->net_stats.rx_crc_errors++;
+ } else {
+ if (status & (GMR_FS_LONG_ERR|GMR_FS_UN_SIZE))
+ skge->net_stats.rx_length_errors++;
+ if (status & GMR_FS_FRAGMENT)
+ skge->net_stats.rx_frame_errors++;
+ if (status & GMR_FS_CRC_ERR)
+ skge->net_stats.rx_crc_errors++;
+ }
+ }
+}
+
+static int skge_poll(struct net_device *dev, int *budget)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+ struct skge_ring *ring = &skge->rx_ring;
+ struct skge_element *e;
+ unsigned int to_do = min(dev->quota, *budget);
+ unsigned int work_done = 0;
+ int done;
+ static const u32 irqmask[] = { IS_PORT_1, IS_PORT_2 };
+
+ for (e = ring->to_clean; e != ring->to_use && work_done < to_do;
+ e = e->next) {
+ struct skge_rx_desc *rd = e->desc;
+ struct sk_buff *skb = e->skb;
+ u32 control, len, status;
+
+ rmb();
+ control = rd->control;
+ if (control & BMU_OWN)
+ break;
+
+ len = control & BMU_BBC;
+ e->skb = NULL;
+
+ pci_unmap_single(hw->pdev,
+ pci_unmap_addr(e, mapaddr),
+ pci_unmap_len(e, maplen),
+ PCI_DMA_FROMDEVICE);
+
+ status = rd->status;
+ if ((control & (BMU_EOF|BMU_STF)) != (BMU_STF|BMU_EOF)
+ || len > dev->mtu + VLAN_ETH_HLEN
+ || bad_phy_status(hw, status)) {
+ skge_rx_error(skge, e - ring->start, control, status);
+ dev_kfree_skb(skb);
+ continue;
+ }
+
+ if (netif_msg_rx_status(skge))
+ printk(KERN_DEBUG PFX "%s: rx slot %d status 0x%x len %d\n",
+ dev->name, e - ring->start, rd->status, len);
+
+ skb_put(skb, len);
+ skb->protocol = eth_type_trans(skb, dev);
+
+ if (skge->rx_csum) {
+ skb->csum = le16_to_cpu(rd->csum2);
+ skb->ip_summed = CHECKSUM_HW;
+ }
+
+ dev->last_rx = jiffies;
+ skge->net_stats.rx_packets++;
+ skge->net_stats.rx_bytes += skb->len;
+ netif_receive_skb(skb);
+
+ ++work_done;
+ }
+ ring->to_clean = e;
+
+ *budget -= work_done;
+ dev->quota -= work_done;
+ done = work_done < to_do;
+
+ if (skge_rx_fill(skge))
+ done = 0;
+
+ /* restart receiver */
+ wmb();
+ skge_write8(hw, Q_ADDR(rxq[skge->port], Q_CSR),
+ CSR_START | CSR_IRQ_CL_F);
+
+ if (done) {
+ local_irq_disable();
+ hw->intr_mask |= irqmask[skge->port];
+ /* Order is important since data can get interrupted */
+ skge_write32(hw, B0_IMSK, hw->intr_mask);
+ __netif_rx_complete(dev);
+ local_irq_enable();
+ }
why not local_irq_{save,restore}?
+ return !done;
+}
+
+static inline void skge_tx_intr(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct skge_hw *hw = skge->hw;
+ struct skge_ring *ring = &skge->tx_ring;
+ struct skge_element *e;
+
+ spin_lock(&skge->tx_lock);
+ for(e = ring->to_clean; e != ring->to_use; e = e->next) {
+ struct skge_tx_desc *td = e->desc;
+ u32 control;
+
+ rmb();
+ control = td->control;
+ if (control & BMU_OWN)
+ break;
+
+ if (unlikely(netif_msg_tx_done(skge)))
+ printk(KERN_DEBUG PFX "%s: tx done slot %d status
0x%x\n",
+ dev->name, e - ring->start, td->status);
+
+ skge_tx_free(hw, e);
+ e->skb = NULL;
+ ++skge->tx_avail;
+ }
+ ring->to_clean = e;
+ skge_write8(hw, Q_ADDR(txq[skge->port], Q_CSR), CSR_IRQ_CL_F);
+
+ if (skge->tx_avail > MAX_SKB_FRAGS + 1)
+ netif_wake_queue(dev);
+
+ spin_unlock(&skge->tx_lock);
+}
+
+static void skge_mac_parity(struct skge_hw *hw, int port)
+{
+ if (hw->chip_id == CHIP_ID_GENESIS)
+ skge_write16(hw, SKGEMAC_REG(port, TX_MFF_CTRL1),
+ MFF_CLR_PERR);
+ else
+ /* HW-Bug #8: cleared by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE
*/
+ skge_write8(hw, SKGEMAC_REG(port, TX_GMF_CTRL_T),
+ (hw->chip_id == CHIP_ID_YUKON && chip_rev(hw) == 0)
+ ? GMF_CLI_TX_FC : GMF_CLI_TX_PE);
+}
+
+static void skge_pci_clear(struct skge_hw *hw)
+{
+ u16 status;
+
+ status = skge_read16(hw, SKGEPCI_REG(PCI_STATUS));
+ skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
+ skge_write16(hw, SKGEPCI_REG(PCI_STATUS),
+ status | PCI_STATUS_ERROR_BITS);
+ skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
+}
+
+/* Handle device specific framing and timeout interrupts */
+static void skge_error_irq(struct skge_hw *hw)
+{
+ u32 hwstatus = skge_read32(hw, B0_HWE_ISRC);
+
+ printk(KERN_ERR PFX "hardware error detected (status 0x%x)\n",
+ hwstatus);
+
+ skge_pci_clear(hw);
+
+ if (hw->chip_id == CHIP_ID_GENESIS) {
+ /* clear xmac errors */
+ if (hwstatus & (IS_NO_STAT_M1|IS_NO_TIST_M1))
+
+ skge_write16(hw, SKGEMAC_REG(0, RX_MFF_CTRL1),
MFF_CLR_INSTAT);
+ if (hwstatus & (IS_NO_STAT_M2|IS_NO_TIST_M2))
+ skge_write16(hw, SKGEMAC_REG(0, RX_MFF_CTRL2),
MFF_CLR_INSTAT);
+ } else {
+ if (hwstatus & IS_IRQ_SENSOR) {
+ /* no sensors on 32-bit Yukon */
+ if ((skge_read16(hw, B0_CTST) & CS_BUS_SLOT_SZ) == 32)
+ hw->intr_mask &= ~IS_HW_ERR;
+ }
+
+ }
+
+ if (hwstatus & IS_RAM_RD_PAR)
+ skge_write16(hw, B3_RI_CTRL, RI_CLR_RD_PERR);
+
+ if (hwstatus & IS_RAM_WR_PAR)
+ skge_write16(hw, B3_RI_CTRL, RI_CLR_WR_PERR);
+
+ if (hwstatus & IS_M1_PAR_ERR)
+ skge_mac_parity(hw, 0);
+
+ if (hwstatus & IS_M2_PAR_ERR)
+ skge_mac_parity(hw, 1);
+
+ if (hwstatus & IS_R1_PAR_ERR)
+ skge_write32(hw, B0_R1_CSR, CSR_IRQ_CL_P);
+
+ if (hwstatus & IS_R2_PAR_ERR)
+ skge_write32(hw, B0_R2_CSR, CSR_IRQ_CL_P);
+}
+
+/*
+ * Interrrupt from PHY are handled in tasklet (soft irq)
+ * because accessing phy registers requires spin wait which might
+ * cause excess interrupt latency.
+ */
+static void skge_extirq(unsigned long data)
+{
+ struct skge_hw *hw = (struct skge_hw *) data;
+ int port;
+
+ spin_lock(&hw->phy_lock);
+ for (port = 0; port < 2; port++) {
+ struct net_device *dev = hw->dev[port];
+
+ if (dev && netif_running(dev)) {
+ struct skge_port *skge = netdev_priv(dev);
+
+ if (hw->chip_id != CHIP_ID_GENESIS)
+ yukon_phy_intr(skge);
+ else if (hw->phy_type == SK_PHY_BCOM)
+ genesis_bcom_intr(skge);
+ }
+ }
+ spin_unlock(&hw->phy_lock);
+
+ local_irq_disable();
+ hw->intr_mask |= IS_EXT_REG;
+ skge_write32(hw, B0_IMSK, hw->intr_mask);
+ local_irq_enable();
+}
+
+static irqreturn_t skge_intr(int irq, void *dev_id, struct pt_regs *regs)
+{
+ struct skge_hw *hw = dev_id;
+ u32 status = skge_read32(hw, B0_SP_ISRC);
+
+ if (status == 0 || status == ~0) /* hotplug or shared irq */
+ return IRQ_NONE;
+
+ status &= hw->intr_mask;
+
+ if (status & IS_R1_F) {
+ hw->intr_mask &= ~IS_R1_F;
+ netif_rx_schedule(hw->dev[0]);
+ }
+
+ if (status & IS_R2_F) {
+ hw->intr_mask &= ~IS_R2_F;
+ netif_rx_schedule(hw->dev[1]);
+ }
+
+ if (status & IS_XA1_F)
+ skge_tx_intr(hw->dev[0]);
+
+ if (status & IS_XA2_F)
+ skge_tx_intr(hw->dev[1]);
+
+ if (hw->chip_id == CHIP_ID_GENESIS) {
+ if (status & IS_MAC1)
+ genesis_mac_intr(hw, 0);
+
+ if (status & IS_MAC2)
+ genesis_mac_intr(hw, 1);
+ } else {
+ if (status & IS_MAC1)
+ yukon_mac_intr(hw, 0);
+
+ if (status & IS_MAC2)
+ yukon_mac_intr(hw, 1);
+ }
+
+ if (status & IS_HW_ERR)
+ skge_error_irq(hw);
+
+ if (status & IS_EXT_REG) {
+ hw->intr_mask &= ~IS_EXT_REG;
+ tasklet_schedule(&hw->ext_tasklet);
+ }
+ skge_write32(hw, B0_IMSK, hw->intr_mask);
+
+ return IRQ_HANDLED;
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void skge_netpoll(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ disable_irq(dev->irq);
+ skge_intr(dev->irq, skge->hw, NULL);
+ enable_irq(dev->irq);
+}
+#endif
+
+/* TODO: use MIB counters instead?? */
+static struct net_device_stats *skge_get_stats(struct net_device *dev)
+{
+ struct skge_port *skge = netdev_priv(dev);
+
+ return &skge->net_stats;
+}
+
+
+static int skge_set_mac_address(struct net_device *dev, void *p)
+{
+ struct skge_port *skge = netdev_priv(dev);
+ struct sockaddr *addr = p;
+ int err = 0;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ skge_down(dev);
+ memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
+ memcpy_toio(skge->hw->regs + B2_MAC_1 + skge->port*8,
+ dev->dev_addr, ETH_ALEN);
+ memcpy_toio(skge->hw->regs + B2_MAC_2 + skge->port*8,
+ dev->dev_addr, ETH_ALEN);
+ if (dev->flags & IFF_UP)
+ err = skge_up(dev);
+ return err;
+}
+
+/*
+ * Setup the board data structure, but don't bring up
+ * the port(s)
+ */
+static __devinit struct skge_hw *skge_hwinit(struct pci_dev *pdev)
+{
+ struct skge_hw *hw;
+ u32 sz;
+ u16 ctst;
+ u8 t8;
+ int i, ports;
+ char *name = pci_name(pdev);
+
+ hw = kmalloc(sizeof(*hw), GFP_KERNEL);
+ if (!hw) {
+ printk(KERN_ERR "skge %s: cannot allocate hardware struct\n",
name);
+ goto err_out1;
+ }
+
+ memset(hw, 0, sizeof(*hw));
+ hw->pdev = pdev;
+ spin_lock_init(&hw->phy_lock);
+ tasklet_init(&hw->ext_tasklet, skge_extirq, (unsigned long) hw);
+
+ hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000);
+ if (!hw->regs) {
+ printk(KERN_ERR "skge %s: cannot map device registers\n", name);
+ goto err_out2;
+ }
+
+ ctst = skge_read16(hw, B0_CTST);
+
+ /* do a SW reset */
+ skge_write8(hw, B0_CTST, CS_RST_SET);
+ skge_write8(hw, B0_CTST, CS_RST_CLR);
+
+ /* clear PCI errors, if any */
+ skge_pci_clear(hw);
+
+ skge_write8(hw, B0_CTST, CS_MRST_CLR);
+
+ /* restore CLK_RUN bits (for Yukon-Lite) */
+ skge_write16(hw, B0_CTST,
+ ctst & (CS_CLK_RUN_HOT|CS_CLK_RUN_RST|CS_CLK_RUN_ENA));
+
+ hw->chip_id = skge_read8(hw, B2_CHIP_ID);
+ hw->phy_type = skge_read8(hw, B2_E_1) & 0xf;
+ hw->pmd_type = skge_read8(hw, B2_PMD_TYP);
+
+ switch(hw->chip_id) {
+ case CHIP_ID_GENESIS:
+ switch (hw->phy_type) {
+ case SK_PHY_XMAC:
+ hw->phy_addr = PHY_ADDR_XMAC;
+ break;
+ case SK_PHY_BCOM:
+ hw->phy_addr = PHY_ADDR_BCOM;
+ break;
+ default:
+ printk(KERN_ERR PFX "%s: unsupported phy type 0x%x\n",
+ name, hw->phy_type);
+ goto err_out3;
+ }
+ break;
+
+ case CHIP_ID_YUKON:
+ case CHIP_ID_YUKON_LITE:
+ case CHIP_ID_YUKON_LP:
+ if (hw->phy_type < SK_PHY_MARV_COPPER && hw->pmd_type != 'S')
+ hw->phy_type = SK_PHY_MARV_COPPER;
+
+ hw->phy_addr = PHY_ADDR_MARV;
+ if (!iscopper(hw))
+ hw->phy_type = SK_PHY_MARV_FIBER;
+
+ break;
+
+ default:
+ printk(KERN_ERR PFX "%s: unsupported chip type 0x%x\n",
+ name, hw->chip_id);
+ goto err_out3;
+ }
+
+ hw->mac_cfg = skge_read8(hw, B2_MAC_CFG);
+ ports = isdualport(hw) ? 2 : 1;
+
+ /* read the adapters RAM size */
+ t8 = skge_read8(hw, B2_E_0);
+ if (hw->chip_id == CHIP_ID_GENESIS) {
+ if (t8 == 3) {
+ /* special case: 4 x 64k x 36, offset = 0x80000 */
+ hw->ram_size = 0x100000;
+ hw->ram_offset = 0x80000;
+ } else
+ hw->ram_size = t8 * 512;
+ }
+ else if (t8 == 0)
+ hw->ram_size = 0x20000;
+ else
+ hw->ram_size = t8 * 4096;
+
+ pci_read_config_dword(hw->pdev, PCI_DEV_REG2, &sz);
+ hw->rom_size = 256 << ((sz & PCI_VPD_ROM_SZ) >> 14);
+
+ if (hw->chip_id == CHIP_ID_GENESIS)
+ genesis_init(hw);
+#if USE_TIST
+ else
+ skge_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_START);
+#endif
+
+ /*
+ * looks like it ignores stuck sensor interrupts
+ */
+ if (hw->chip_id != CHIP_ID_GENESIS) {
+ /* switch power to VCC (WA for VAUX problem) */
+ skge_write8(hw, B0_POWER_CTRL,
+ PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON);
+ if ((skge_read32(hw, B0_ISRC) & IS_HW_ERR) &&
+ (skge_read32(hw, B0_HWE_ISRC & IS_IRQ_SENSOR)))
+ hw->intr_mask &= ~IS_HW_ERR;
+
+ for (i = 0; i < ports; i++) {
+ skge_write16(hw, SKGEMAC_REG(i, GMAC_LINK_CTRL),
GMLC_RST_SET);
+ skge_write16(hw, SKGEMAC_REG(i, GMAC_LINK_CTRL),
GMLC_RST_CLR);
+ }
+ }
+
+ /* turn off hardware timer (unused) */
+ skge_write8(hw, B2_TI_CTRL, TIM_STOP);
+ skge_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ);
+ skge_write8(hw, B0_LED, LED_STAT_ON);
+
+ /* enable the Tx Arbiters */
+ for (i = 0; i < ports; i++)
+ skge_write8(hw, SKGEMAC_REG(i, TXA_CTRL), TXA_ENA_ARB);
+
+ /* Initialize ram interface */
+ skge_write16(hw, B3_RI_CTRL, RI_RST_CLR);
+
+ skge_write8(hw, B3_RI_WTO_R1, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_WTO_XA1, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_WTO_XS1, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_RTO_R1, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_RTO_XA1, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_RTO_XS1, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_WTO_R2, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_WTO_XA2, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_WTO_XS2, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_RTO_R2, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_RTO_XA2, SK_RI_TO_53);
+ skge_write8(hw, B3_RI_RTO_XS2, SK_RI_TO_53);
+
+ skge_write32(hw, B0_HWE_IMSK, IS_ERR_MSK);
+
+ hw->intr_mask = IS_HW_ERR | IS_EXT_REG | IS_PORT_1;
+ if (isdualport(hw))
+ hw->intr_mask |= IS_PORT_2;
+ skge_write32(hw, B0_IMSK, hw->intr_mask);
+
+ if (hw->chip_id != CHIP_ID_GENESIS)
+ skge_write8(hw, GMAC_IRQ_MSK, 0);
+
+ spin_lock_bh(&hw->phy_lock);
+ for (i = 0; i < ports; i++) {
+ if (hw->chip_id == CHIP_ID_GENESIS)
+ genesis_reset(hw, i);
+ else
+ yukon_reset(hw, i);
+ }
+ spin_unlock_bh(&hw->phy_lock);
+
+ return hw;
+
+ err_out3:
+ iounmap(hw->regs);
+ err_out2:
+ kfree(hw);
+ err_out1:
+ return NULL;
+}
+
+/* Release board resources */
+static void skge_hwfree(struct skge_hw *hw)
+{
+ skge_write16(hw, B0_LED, LED_STAT_OFF);
+ iounmap(hw->regs);
+ kfree(hw);
+}
+
+/* Initialize network device */
+static struct net_device *skge_devinit(struct skge_hw *hw, int port)
+{
+ struct skge_port *skge;
+ struct net_device *dev = alloc_etherdev(sizeof(*skge));
+ int i;
+
+ if (!dev) {
+ printk(KERN_ERR "skge etherdev alloc failed");
+ return NULL;
+ }
+
+ SET_MODULE_OWNER(dev);
+ SET_NETDEV_DEV(dev, &hw->pdev->dev);
+ dev->open = skge_up;
+ dev->stop = skge_down;
+ dev->hard_start_xmit = skge_xmit_frame;
+ dev->get_stats = skge_get_stats;
+ if (hw->chip_id == CHIP_ID_GENESIS)
+ dev->set_multicast_list = genesis_set_multicast;
+ else
+ dev->set_multicast_list = yukon_set_multicast;
+
+ dev->set_mac_address = skge_set_mac_address;
+ dev->change_mtu = skge_change_mtu;
+ SET_ETHTOOL_OPS(dev, &skge_ethtool_ops);
+ dev->tx_timeout = skge_tx_timeout;
+ dev->watchdog_timeo = TX_WATCHDOG;
+ dev->poll = skge_poll;
+ dev->weight = NAPI_WEIGHT;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ dev->poll_controller = skge_netpoll;
+#endif
+ dev->irq = hw->pdev->irq;
+
+ dev->features |= NETIF_F_LLTX;
+ if (hw->chip_id != CHIP_ID_GENESIS)
+ dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
+
+ skge = netdev_priv(dev);
+ skge->netdev = dev;
+ skge->hw = hw;
+ skge->msg_enable = netif_msg_init(debug, default_msg);
+ skge->rx_csum = 1;
+ skge->tx_ring.count = DEFAULT_TX_RING_SIZE;
+ skge->rx_ring.count = DEFAULT_RX_RING_SIZE;
+
+ /* Auto speed and flow control */
+ skge->autoneg = AUTONEG_ENABLE;
+ skge->flow_control = FLOW_MODE_SYMMETRIC;
+ hw->dev[port] = dev;
+
+ skge->port = port;
+
+ spin_lock_init(&skge->tx_lock);
+
+ init_timer(&skge->link_check);
+ skge->link_check.function = skge_link_timer;
+ skge->link_check.data = (unsigned long) skge;
+
+ init_timer(&skge->led_blink);
+ skge->led_blink.function = skge_blink_timer;
+ skge->led_blink.data = (unsigned long) skge;
+
+ /* read the mac address */
+ for (i = 0; i < ETH_ALEN; i++)
+ dev->dev_addr[i] = skge_read8(hw, B2_MAC_1 + port*8 + i);
+ /* device is off until link detection */
+ netif_carrier_off(dev);
+ netif_stop_queue(dev);
+
+ return dev;
+}
+
+static const char *skge_board_name(const struct skge_hw *hw)
+{
+ static char buf[16];
+
+ switch(hw->chip_id) {
+ case CHIP_ID_GENESIS:
+ return "Genesis";
+ case CHIP_ID_YUKON:
+ return "Yukon";
+ case CHIP_ID_YUKON_LITE:
+ return "Yukon-Lite";
+ case CHIP_ID_YUKON_LP:
+ return "Yukon-LP";
+ case CHIP_ID_YUKON_XL:
+ return "Yukon-2 XL";
+ case CHIP_ID_YUKON_EC:
+ return "YUKON-2 EC";
+ case CHIP_ID_YUKON_FE:
+ return "YUKON-2 FE";
more compact and maintainable as a lookup table.
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