1 // SPDX-License-Identifier: GPL-2.0-only
3 * New driver for Marvell Yukon chipset and SysKonnect Gigabit
4 * Ethernet adapters. Based on earlier sk98lin, e100 and
5 * FreeBSD if_sk drivers.
7 * This driver intentionally does not support all the features
8 * of the original driver such as link fail-over and link management because
9 * those should be done at higher levels.
11 * Copyright (C) 2004, 2005 Stephen Hemminger <shemminger@osdl.org>
14 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
17 #include <linux/kernel.h>
18 #include <linux/module.h>
19 #include <linux/moduleparam.h>
20 #include <linux/netdevice.h>
21 #include <linux/etherdevice.h>
22 #include <linux/ethtool.h>
23 #include <linux/pci.h>
24 #include <linux/if_vlan.h>
26 #include <linux/delay.h>
27 #include <linux/crc32.h>
28 #include <linux/dma-mapping.h>
29 #include <linux/debugfs.h>
30 #include <linux/sched.h>
31 #include <linux/seq_file.h>
32 #include <linux/mii.h>
33 #include <linux/slab.h>
34 #include <linux/dmi.h>
35 #include <linux/prefetch.h>
40 #define DRV_NAME "skge"
41 #define DRV_VERSION "1.14"
43 #define DEFAULT_TX_RING_SIZE 128
44 #define DEFAULT_RX_RING_SIZE 512
45 #define MAX_TX_RING_SIZE 1024
46 #define TX_LOW_WATER (MAX_SKB_FRAGS + 1)
47 #define MAX_RX_RING_SIZE 4096
48 #define RX_COPY_THRESHOLD 128
49 #define RX_BUF_SIZE 1536
50 #define PHY_RETRIES 1000
51 #define ETH_JUMBO_MTU 9000
52 #define TX_WATCHDOG (5 * HZ)
53 #define NAPI_WEIGHT 64
57 #define SKGE_EEPROM_MAGIC 0x9933aabb
60 MODULE_DESCRIPTION("SysKonnect Gigabit Ethernet driver");
61 MODULE_AUTHOR("Stephen Hemminger <shemminger@linux-foundation.org>");
62 MODULE_LICENSE("GPL");
63 MODULE_VERSION(DRV_VERSION);
65 static const u32 default_msg = (NETIF_MSG_DRV | NETIF_MSG_PROBE |
66 NETIF_MSG_LINK | NETIF_MSG_IFUP |
69 static int debug = -1; /* defaults above */
70 module_param(debug, int, 0);
71 MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
73 static const struct pci_device_id skge_id_table[] = {
74 { PCI_DEVICE(PCI_VENDOR_ID_3COM, 0x1700) }, /* 3Com 3C940 */
75 { PCI_DEVICE(PCI_VENDOR_ID_3COM, 0x80EB) }, /* 3Com 3C940B */
76 #ifdef CONFIG_SKGE_GENESIS
77 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x4300) }, /* SK-9xx */
79 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x4320) }, /* SK-98xx V2.0 */
80 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b01) }, /* D-Link DGE-530T (rev.B) */
81 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4c00) }, /* D-Link DGE-530T */
82 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4302) }, /* D-Link DGE-530T Rev C1 */
83 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4320) }, /* Marvell Yukon 88E8001/8003/8010 */
84 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x5005) }, /* Belkin */
85 { PCI_DEVICE(PCI_VENDOR_ID_CNET, 0x434E) }, /* CNet PowerG-2000 */
86 { PCI_DEVICE(PCI_VENDOR_ID_LINKSYS, 0x1064) }, /* Linksys EG1064 v2 */
87 { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0015 }, /* Linksys EG1032 v2 */
90 MODULE_DEVICE_TABLE(pci, skge_id_table);
92 static int skge_up(struct net_device *dev);
93 static int skge_down(struct net_device *dev);
94 static void skge_phy_reset(struct skge_port *skge);
95 static void skge_tx_clean(struct net_device *dev);
96 static int xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val);
97 static int gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val);
98 static void genesis_get_stats(struct skge_port *skge, u64 *data);
99 static void yukon_get_stats(struct skge_port *skge, u64 *data);
100 static void yukon_init(struct skge_hw *hw, int port);
101 static void genesis_mac_init(struct skge_hw *hw, int port);
102 static void genesis_link_up(struct skge_port *skge);
103 static void skge_set_multicast(struct net_device *dev);
104 static irqreturn_t skge_intr(int irq, void *dev_id);
106 /* Avoid conditionals by using array */
107 static const int txqaddr[] = { Q_XA1, Q_XA2 };
108 static const int rxqaddr[] = { Q_R1, Q_R2 };
109 static const u32 rxirqmask[] = { IS_R1_F, IS_R2_F };
110 static const u32 txirqmask[] = { IS_XA1_F, IS_XA2_F };
111 static const u32 napimask[] = { IS_R1_F|IS_XA1_F, IS_R2_F|IS_XA2_F };
112 static const u32 portmask[] = { IS_PORT_1, IS_PORT_2 };
114 static inline bool is_genesis(const struct skge_hw *hw)
116 #ifdef CONFIG_SKGE_GENESIS
117 return hw->chip_id == CHIP_ID_GENESIS;
123 static int skge_get_regs_len(struct net_device *dev)
129 * Returns copy of whole control register region
130 * Note: skip RAM address register because accessing it will
133 static void skge_get_regs(struct net_device *dev, struct ethtool_regs *regs,
136 const struct skge_port *skge = netdev_priv(dev);
137 const void __iomem *io = skge->hw->regs;
140 memset(p, 0, regs->len);
141 memcpy_fromio(p, io, B3_RAM_ADDR);
143 if (regs->len > B3_RI_WTO_R1) {
144 memcpy_fromio(p + B3_RI_WTO_R1, io + B3_RI_WTO_R1,
145 regs->len - B3_RI_WTO_R1);
149 /* Wake on Lan only supported on Yukon chips with rev 1 or above */
150 static u32 wol_supported(const struct skge_hw *hw)
155 if (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0)
158 return WAKE_MAGIC | WAKE_PHY;
161 static void skge_wol_init(struct skge_port *skge)
163 struct skge_hw *hw = skge->hw;
164 int port = skge->port;
167 skge_write16(hw, B0_CTST, CS_RST_CLR);
168 skge_write16(hw, SK_REG(port, GMAC_LINK_CTRL), GMLC_RST_CLR);
171 skge_write8(hw, B0_POWER_CTRL,
172 PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_ON | PC_VCC_OFF);
174 /* WA code for COMA mode -- clear PHY reset */
175 if (hw->chip_id == CHIP_ID_YUKON_LITE &&
176 hw->chip_rev >= CHIP_REV_YU_LITE_A3) {
177 u32 reg = skge_read32(hw, B2_GP_IO);
180 skge_write32(hw, B2_GP_IO, reg);
183 skge_write32(hw, SK_REG(port, GPHY_CTRL),
185 GPC_HWCFG_M_3 | GPC_HWCFG_M_2 | GPC_HWCFG_M_1 | GPC_HWCFG_M_0 |
186 GPC_ANEG_1 | GPC_RST_SET);
188 skge_write32(hw, SK_REG(port, GPHY_CTRL),
190 GPC_HWCFG_M_3 | GPC_HWCFG_M_2 | GPC_HWCFG_M_1 | GPC_HWCFG_M_0 |
191 GPC_ANEG_1 | GPC_RST_CLR);
193 skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
195 /* Force to 10/100 skge_reset will re-enable on resume */
196 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV,
197 (PHY_AN_100FULL | PHY_AN_100HALF |
198 PHY_AN_10FULL | PHY_AN_10HALF | PHY_AN_CSMA));
200 gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, 0);
201 gm_phy_write(hw, port, PHY_MARV_CTRL,
202 PHY_CT_RESET | PHY_CT_SPS_LSB | PHY_CT_ANE |
203 PHY_CT_RE_CFG | PHY_CT_DUP_MD);
206 /* Set GMAC to no flow control and auto update for speed/duplex */
207 gma_write16(hw, port, GM_GP_CTRL,
208 GM_GPCR_FC_TX_DIS|GM_GPCR_TX_ENA|GM_GPCR_RX_ENA|
209 GM_GPCR_DUP_FULL|GM_GPCR_FC_RX_DIS|GM_GPCR_AU_FCT_DIS);
211 /* Set WOL address */
212 memcpy_toio(hw->regs + WOL_REGS(port, WOL_MAC_ADDR),
213 skge->netdev->dev_addr, ETH_ALEN);
215 /* Turn on appropriate WOL control bits */
216 skge_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), WOL_CTL_CLEAR_RESULT);
218 if (skge->wol & WAKE_PHY)
219 ctrl |= WOL_CTL_ENA_PME_ON_LINK_CHG|WOL_CTL_ENA_LINK_CHG_UNIT;
221 ctrl |= WOL_CTL_DIS_PME_ON_LINK_CHG|WOL_CTL_DIS_LINK_CHG_UNIT;
223 if (skge->wol & WAKE_MAGIC)
224 ctrl |= WOL_CTL_ENA_PME_ON_MAGIC_PKT|WOL_CTL_ENA_MAGIC_PKT_UNIT;
226 ctrl |= WOL_CTL_DIS_PME_ON_MAGIC_PKT|WOL_CTL_DIS_MAGIC_PKT_UNIT;
228 ctrl |= WOL_CTL_DIS_PME_ON_PATTERN|WOL_CTL_DIS_PATTERN_UNIT;
229 skge_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), ctrl);
232 skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
235 static void skge_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
237 struct skge_port *skge = netdev_priv(dev);
239 wol->supported = wol_supported(skge->hw);
240 wol->wolopts = skge->wol;
243 static int skge_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
245 struct skge_port *skge = netdev_priv(dev);
246 struct skge_hw *hw = skge->hw;
248 if ((wol->wolopts & ~wol_supported(hw)) ||
249 !device_can_wakeup(&hw->pdev->dev))
252 skge->wol = wol->wolopts;
254 device_set_wakeup_enable(&hw->pdev->dev, skge->wol);
259 /* Determine supported/advertised modes based on hardware.
260 * Note: ethtool ADVERTISED_xxx == SUPPORTED_xxx
262 static u32 skge_supported_modes(const struct skge_hw *hw)
267 supported = (SUPPORTED_10baseT_Half |
268 SUPPORTED_10baseT_Full |
269 SUPPORTED_100baseT_Half |
270 SUPPORTED_100baseT_Full |
271 SUPPORTED_1000baseT_Half |
272 SUPPORTED_1000baseT_Full |
277 supported &= ~(SUPPORTED_10baseT_Half |
278 SUPPORTED_10baseT_Full |
279 SUPPORTED_100baseT_Half |
280 SUPPORTED_100baseT_Full);
282 else if (hw->chip_id == CHIP_ID_YUKON)
283 supported &= ~SUPPORTED_1000baseT_Half;
285 supported = (SUPPORTED_1000baseT_Full |
286 SUPPORTED_1000baseT_Half |
293 static int skge_get_link_ksettings(struct net_device *dev,
294 struct ethtool_link_ksettings *cmd)
296 struct skge_port *skge = netdev_priv(dev);
297 struct skge_hw *hw = skge->hw;
298 u32 supported, advertising;
300 supported = skge_supported_modes(hw);
303 cmd->base.port = PORT_TP;
304 cmd->base.phy_address = hw->phy_addr;
306 cmd->base.port = PORT_FIBRE;
308 advertising = skge->advertising;
309 cmd->base.autoneg = skge->autoneg;
310 cmd->base.speed = skge->speed;
311 cmd->base.duplex = skge->duplex;
313 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
315 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
321 static int skge_set_link_ksettings(struct net_device *dev,
322 const struct ethtool_link_ksettings *cmd)
324 struct skge_port *skge = netdev_priv(dev);
325 const struct skge_hw *hw = skge->hw;
326 u32 supported = skge_supported_modes(hw);
330 ethtool_convert_link_mode_to_legacy_u32(&advertising,
331 cmd->link_modes.advertising);
333 if (cmd->base.autoneg == AUTONEG_ENABLE) {
334 advertising = supported;
339 u32 speed = cmd->base.speed;
343 if (cmd->base.duplex == DUPLEX_FULL)
344 setting = SUPPORTED_1000baseT_Full;
345 else if (cmd->base.duplex == DUPLEX_HALF)
346 setting = SUPPORTED_1000baseT_Half;
351 if (cmd->base.duplex == DUPLEX_FULL)
352 setting = SUPPORTED_100baseT_Full;
353 else if (cmd->base.duplex == DUPLEX_HALF)
354 setting = SUPPORTED_100baseT_Half;
360 if (cmd->base.duplex == DUPLEX_FULL)
361 setting = SUPPORTED_10baseT_Full;
362 else if (cmd->base.duplex == DUPLEX_HALF)
363 setting = SUPPORTED_10baseT_Half;
371 if ((setting & supported) == 0)
375 skge->duplex = cmd->base.duplex;
378 skge->autoneg = cmd->base.autoneg;
379 skge->advertising = advertising;
381 if (netif_running(dev)) {
393 static void skge_get_drvinfo(struct net_device *dev,
394 struct ethtool_drvinfo *info)
396 struct skge_port *skge = netdev_priv(dev);
398 strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
399 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
400 strlcpy(info->bus_info, pci_name(skge->hw->pdev),
401 sizeof(info->bus_info));
404 static const struct skge_stat {
405 char name[ETH_GSTRING_LEN];
409 { "tx_bytes", XM_TXO_OK_HI, GM_TXO_OK_HI },
410 { "rx_bytes", XM_RXO_OK_HI, GM_RXO_OK_HI },
412 { "tx_broadcast", XM_TXF_BC_OK, GM_TXF_BC_OK },
413 { "rx_broadcast", XM_RXF_BC_OK, GM_RXF_BC_OK },
414 { "tx_multicast", XM_TXF_MC_OK, GM_TXF_MC_OK },
415 { "rx_multicast", XM_RXF_MC_OK, GM_RXF_MC_OK },
416 { "tx_unicast", XM_TXF_UC_OK, GM_TXF_UC_OK },
417 { "rx_unicast", XM_RXF_UC_OK, GM_RXF_UC_OK },
418 { "tx_mac_pause", XM_TXF_MPAUSE, GM_TXF_MPAUSE },
419 { "rx_mac_pause", XM_RXF_MPAUSE, GM_RXF_MPAUSE },
421 { "collisions", XM_TXF_SNG_COL, GM_TXF_SNG_COL },
422 { "multi_collisions", XM_TXF_MUL_COL, GM_TXF_MUL_COL },
423 { "aborted", XM_TXF_ABO_COL, GM_TXF_ABO_COL },
424 { "late_collision", XM_TXF_LAT_COL, GM_TXF_LAT_COL },
425 { "fifo_underrun", XM_TXE_FIFO_UR, GM_TXE_FIFO_UR },
426 { "fifo_overflow", XM_RXE_FIFO_OV, GM_RXE_FIFO_OV },
428 { "rx_toolong", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR },
429 { "rx_jabber", XM_RXF_JAB_PKT, GM_RXF_JAB_PKT },
430 { "rx_runt", XM_RXE_RUNT, GM_RXE_FRAG },
431 { "rx_too_long", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR },
432 { "rx_fcs_error", XM_RXF_FCS_ERR, GM_RXF_FCS_ERR },
435 static int skge_get_sset_count(struct net_device *dev, int sset)
439 return ARRAY_SIZE(skge_stats);
445 static void skge_get_ethtool_stats(struct net_device *dev,
446 struct ethtool_stats *stats, u64 *data)
448 struct skge_port *skge = netdev_priv(dev);
450 if (is_genesis(skge->hw))
451 genesis_get_stats(skge, data);
453 yukon_get_stats(skge, data);
456 /* Use hardware MIB variables for critical path statistics and
457 * transmit feedback not reported at interrupt.
458 * Other errors are accounted for in interrupt handler.
460 static struct net_device_stats *skge_get_stats(struct net_device *dev)
462 struct skge_port *skge = netdev_priv(dev);
463 u64 data[ARRAY_SIZE(skge_stats)];
465 if (is_genesis(skge->hw))
466 genesis_get_stats(skge, data);
468 yukon_get_stats(skge, data);
470 dev->stats.tx_bytes = data[0];
471 dev->stats.rx_bytes = data[1];
472 dev->stats.tx_packets = data[2] + data[4] + data[6];
473 dev->stats.rx_packets = data[3] + data[5] + data[7];
474 dev->stats.multicast = data[3] + data[5];
475 dev->stats.collisions = data[10];
476 dev->stats.tx_aborted_errors = data[12];
481 static void skge_get_strings(struct net_device *dev, u32 stringset, u8 *data)
487 for (i = 0; i < ARRAY_SIZE(skge_stats); i++)
488 memcpy(data + i * ETH_GSTRING_LEN,
489 skge_stats[i].name, ETH_GSTRING_LEN);
494 static void skge_get_ring_param(struct net_device *dev,
495 struct ethtool_ringparam *p,
496 struct kernel_ethtool_ringparam *kernel_p,
497 struct netlink_ext_ack *extack)
499 struct skge_port *skge = netdev_priv(dev);
501 p->rx_max_pending = MAX_RX_RING_SIZE;
502 p->tx_max_pending = MAX_TX_RING_SIZE;
504 p->rx_pending = skge->rx_ring.count;
505 p->tx_pending = skge->tx_ring.count;
508 static int skge_set_ring_param(struct net_device *dev,
509 struct ethtool_ringparam *p,
510 struct kernel_ethtool_ringparam *kernel_p,
511 struct netlink_ext_ack *extack)
513 struct skge_port *skge = netdev_priv(dev);
516 if (p->rx_pending == 0 || p->rx_pending > MAX_RX_RING_SIZE ||
517 p->tx_pending < TX_LOW_WATER || p->tx_pending > MAX_TX_RING_SIZE)
520 skge->rx_ring.count = p->rx_pending;
521 skge->tx_ring.count = p->tx_pending;
523 if (netif_running(dev)) {
533 static u32 skge_get_msglevel(struct net_device *netdev)
535 struct skge_port *skge = netdev_priv(netdev);
536 return skge->msg_enable;
539 static void skge_set_msglevel(struct net_device *netdev, u32 value)
541 struct skge_port *skge = netdev_priv(netdev);
542 skge->msg_enable = value;
545 static int skge_nway_reset(struct net_device *dev)
547 struct skge_port *skge = netdev_priv(dev);
549 if (skge->autoneg != AUTONEG_ENABLE || !netif_running(dev))
552 skge_phy_reset(skge);
556 static void skge_get_pauseparam(struct net_device *dev,
557 struct ethtool_pauseparam *ecmd)
559 struct skge_port *skge = netdev_priv(dev);
561 ecmd->rx_pause = ((skge->flow_control == FLOW_MODE_SYMMETRIC) ||
562 (skge->flow_control == FLOW_MODE_SYM_OR_REM));
563 ecmd->tx_pause = (ecmd->rx_pause ||
564 (skge->flow_control == FLOW_MODE_LOC_SEND));
566 ecmd->autoneg = ecmd->rx_pause || ecmd->tx_pause;
569 static int skge_set_pauseparam(struct net_device *dev,
570 struct ethtool_pauseparam *ecmd)
572 struct skge_port *skge = netdev_priv(dev);
573 struct ethtool_pauseparam old;
576 skge_get_pauseparam(dev, &old);
578 if (ecmd->autoneg != old.autoneg)
579 skge->flow_control = ecmd->autoneg ? FLOW_MODE_NONE : FLOW_MODE_SYMMETRIC;
581 if (ecmd->rx_pause && ecmd->tx_pause)
582 skge->flow_control = FLOW_MODE_SYMMETRIC;
583 else if (ecmd->rx_pause && !ecmd->tx_pause)
584 skge->flow_control = FLOW_MODE_SYM_OR_REM;
585 else if (!ecmd->rx_pause && ecmd->tx_pause)
586 skge->flow_control = FLOW_MODE_LOC_SEND;
588 skge->flow_control = FLOW_MODE_NONE;
591 if (netif_running(dev)) {
603 /* Chip internal frequency for clock calculations */
604 static inline u32 hwkhz(const struct skge_hw *hw)
606 return is_genesis(hw) ? 53125 : 78125;
609 /* Chip HZ to microseconds */
610 static inline u32 skge_clk2usec(const struct skge_hw *hw, u32 ticks)
612 return (ticks * 1000) / hwkhz(hw);
615 /* Microseconds to chip HZ */
616 static inline u32 skge_usecs2clk(const struct skge_hw *hw, u32 usec)
618 return hwkhz(hw) * usec / 1000;
621 static int skge_get_coalesce(struct net_device *dev,
622 struct ethtool_coalesce *ecmd,
623 struct kernel_ethtool_coalesce *kernel_coal,
624 struct netlink_ext_ack *extack)
626 struct skge_port *skge = netdev_priv(dev);
627 struct skge_hw *hw = skge->hw;
628 int port = skge->port;
630 ecmd->rx_coalesce_usecs = 0;
631 ecmd->tx_coalesce_usecs = 0;
633 if (skge_read32(hw, B2_IRQM_CTRL) & TIM_START) {
634 u32 delay = skge_clk2usec(hw, skge_read32(hw, B2_IRQM_INI));
635 u32 msk = skge_read32(hw, B2_IRQM_MSK);
637 if (msk & rxirqmask[port])
638 ecmd->rx_coalesce_usecs = delay;
639 if (msk & txirqmask[port])
640 ecmd->tx_coalesce_usecs = delay;
646 /* Note: interrupt timer is per board, but can turn on/off per port */
647 static int skge_set_coalesce(struct net_device *dev,
648 struct ethtool_coalesce *ecmd,
649 struct kernel_ethtool_coalesce *kernel_coal,
650 struct netlink_ext_ack *extack)
652 struct skge_port *skge = netdev_priv(dev);
653 struct skge_hw *hw = skge->hw;
654 int port = skge->port;
655 u32 msk = skge_read32(hw, B2_IRQM_MSK);
658 if (ecmd->rx_coalesce_usecs == 0)
659 msk &= ~rxirqmask[port];
660 else if (ecmd->rx_coalesce_usecs < 25 ||
661 ecmd->rx_coalesce_usecs > 33333)
664 msk |= rxirqmask[port];
665 delay = ecmd->rx_coalesce_usecs;
668 if (ecmd->tx_coalesce_usecs == 0)
669 msk &= ~txirqmask[port];
670 else if (ecmd->tx_coalesce_usecs < 25 ||
671 ecmd->tx_coalesce_usecs > 33333)
674 msk |= txirqmask[port];
675 delay = min(delay, ecmd->rx_coalesce_usecs);
678 skge_write32(hw, B2_IRQM_MSK, msk);
680 skge_write32(hw, B2_IRQM_CTRL, TIM_STOP);
682 skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, delay));
683 skge_write32(hw, B2_IRQM_CTRL, TIM_START);
688 enum led_mode { LED_MODE_OFF, LED_MODE_ON, LED_MODE_TST };
689 static void skge_led(struct skge_port *skge, enum led_mode mode)
691 struct skge_hw *hw = skge->hw;
692 int port = skge->port;
694 spin_lock_bh(&hw->phy_lock);
695 if (is_genesis(hw)) {
698 if (hw->phy_type == SK_PHY_BCOM)
699 xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_OFF);
701 skge_write32(hw, SK_REG(port, TX_LED_VAL), 0);
702 skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_T_OFF);
704 skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF);
705 skge_write32(hw, SK_REG(port, RX_LED_VAL), 0);
706 skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_T_OFF);
710 skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_ON);
711 skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_LINKSYNC_ON);
713 skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START);
714 skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START);
719 skge_write8(hw, SK_REG(port, RX_LED_TST), LED_T_ON);
720 skge_write32(hw, SK_REG(port, RX_LED_VAL), 100);
721 skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START);
723 if (hw->phy_type == SK_PHY_BCOM)
724 xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_ON);
726 skge_write8(hw, SK_REG(port, TX_LED_TST), LED_T_ON);
727 skge_write32(hw, SK_REG(port, TX_LED_VAL), 100);
728 skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START);
735 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
736 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
737 PHY_M_LED_MO_DUP(MO_LED_OFF) |
738 PHY_M_LED_MO_10(MO_LED_OFF) |
739 PHY_M_LED_MO_100(MO_LED_OFF) |
740 PHY_M_LED_MO_1000(MO_LED_OFF) |
741 PHY_M_LED_MO_RX(MO_LED_OFF));
744 gm_phy_write(hw, port, PHY_MARV_LED_CTRL,
745 PHY_M_LED_PULS_DUR(PULS_170MS) |
746 PHY_M_LED_BLINK_RT(BLINK_84MS) |
750 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
751 PHY_M_LED_MO_RX(MO_LED_OFF) |
752 (skge->speed == SPEED_100 ?
753 PHY_M_LED_MO_100(MO_LED_ON) : 0));
756 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
757 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
758 PHY_M_LED_MO_DUP(MO_LED_ON) |
759 PHY_M_LED_MO_10(MO_LED_ON) |
760 PHY_M_LED_MO_100(MO_LED_ON) |
761 PHY_M_LED_MO_1000(MO_LED_ON) |
762 PHY_M_LED_MO_RX(MO_LED_ON));
765 spin_unlock_bh(&hw->phy_lock);
768 /* blink LED's for finding board */
769 static int skge_set_phys_id(struct net_device *dev,
770 enum ethtool_phys_id_state state)
772 struct skge_port *skge = netdev_priv(dev);
775 case ETHTOOL_ID_ACTIVE:
776 return 2; /* cycle on/off twice per second */
779 skge_led(skge, LED_MODE_TST);
783 skge_led(skge, LED_MODE_OFF);
786 case ETHTOOL_ID_INACTIVE:
787 /* back to regular LED state */
788 skge_led(skge, netif_running(dev) ? LED_MODE_ON : LED_MODE_OFF);
794 static int skge_get_eeprom_len(struct net_device *dev)
796 struct skge_port *skge = netdev_priv(dev);
799 pci_read_config_dword(skge->hw->pdev, PCI_DEV_REG2, ®2);
800 return 1 << (((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8);
803 static u32 skge_vpd_read(struct pci_dev *pdev, int cap, u16 offset)
807 pci_write_config_word(pdev, cap + PCI_VPD_ADDR, offset);
810 pci_read_config_word(pdev, cap + PCI_VPD_ADDR, &offset);
811 } while (!(offset & PCI_VPD_ADDR_F));
813 pci_read_config_dword(pdev, cap + PCI_VPD_DATA, &val);
817 static void skge_vpd_write(struct pci_dev *pdev, int cap, u16 offset, u32 val)
819 pci_write_config_dword(pdev, cap + PCI_VPD_DATA, val);
820 pci_write_config_word(pdev, cap + PCI_VPD_ADDR,
821 offset | PCI_VPD_ADDR_F);
824 pci_read_config_word(pdev, cap + PCI_VPD_ADDR, &offset);
825 } while (offset & PCI_VPD_ADDR_F);
828 static int skge_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
831 struct skge_port *skge = netdev_priv(dev);
832 struct pci_dev *pdev = skge->hw->pdev;
833 int cap = pci_find_capability(pdev, PCI_CAP_ID_VPD);
834 int length = eeprom->len;
835 u16 offset = eeprom->offset;
840 eeprom->magic = SKGE_EEPROM_MAGIC;
843 u32 val = skge_vpd_read(pdev, cap, offset);
844 int n = min_t(int, length, sizeof(val));
846 memcpy(data, &val, n);
854 static int skge_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
857 struct skge_port *skge = netdev_priv(dev);
858 struct pci_dev *pdev = skge->hw->pdev;
859 int cap = pci_find_capability(pdev, PCI_CAP_ID_VPD);
860 int length = eeprom->len;
861 u16 offset = eeprom->offset;
866 if (eeprom->magic != SKGE_EEPROM_MAGIC)
871 int n = min_t(int, length, sizeof(val));
874 val = skge_vpd_read(pdev, cap, offset);
875 memcpy(&val, data, n);
877 skge_vpd_write(pdev, cap, offset, val);
886 static const struct ethtool_ops skge_ethtool_ops = {
887 .supported_coalesce_params = ETHTOOL_COALESCE_USECS,
888 .get_drvinfo = skge_get_drvinfo,
889 .get_regs_len = skge_get_regs_len,
890 .get_regs = skge_get_regs,
891 .get_wol = skge_get_wol,
892 .set_wol = skge_set_wol,
893 .get_msglevel = skge_get_msglevel,
894 .set_msglevel = skge_set_msglevel,
895 .nway_reset = skge_nway_reset,
896 .get_link = ethtool_op_get_link,
897 .get_eeprom_len = skge_get_eeprom_len,
898 .get_eeprom = skge_get_eeprom,
899 .set_eeprom = skge_set_eeprom,
900 .get_ringparam = skge_get_ring_param,
901 .set_ringparam = skge_set_ring_param,
902 .get_pauseparam = skge_get_pauseparam,
903 .set_pauseparam = skge_set_pauseparam,
904 .get_coalesce = skge_get_coalesce,
905 .set_coalesce = skge_set_coalesce,
906 .get_strings = skge_get_strings,
907 .set_phys_id = skge_set_phys_id,
908 .get_sset_count = skge_get_sset_count,
909 .get_ethtool_stats = skge_get_ethtool_stats,
910 .get_link_ksettings = skge_get_link_ksettings,
911 .set_link_ksettings = skge_set_link_ksettings,
915 * Allocate ring elements and chain them together
916 * One-to-one association of board descriptors with ring elements
918 static int skge_ring_alloc(struct skge_ring *ring, void *vaddr, u32 base)
920 struct skge_tx_desc *d;
921 struct skge_element *e;
924 ring->start = kcalloc(ring->count, sizeof(*e), GFP_KERNEL);
928 for (i = 0, e = ring->start, d = vaddr; i < ring->count; i++, e++, d++) {
930 if (i == ring->count - 1) {
931 e->next = ring->start;
932 d->next_offset = base;
935 d->next_offset = base + (i+1) * sizeof(*d);
938 ring->to_use = ring->to_clean = ring->start;
943 /* Allocate and setup a new buffer for receiving */
944 static int skge_rx_setup(struct skge_port *skge, struct skge_element *e,
945 struct sk_buff *skb, unsigned int bufsize)
947 struct skge_rx_desc *rd = e->desc;
950 map = dma_map_single(&skge->hw->pdev->dev, skb->data, bufsize,
953 if (dma_mapping_error(&skge->hw->pdev->dev, map))
956 rd->dma_lo = lower_32_bits(map);
957 rd->dma_hi = upper_32_bits(map);
959 rd->csum1_start = ETH_HLEN;
960 rd->csum2_start = ETH_HLEN;
966 rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | bufsize;
967 dma_unmap_addr_set(e, mapaddr, map);
968 dma_unmap_len_set(e, maplen, bufsize);
972 /* Resume receiving using existing skb,
973 * Note: DMA address is not changed by chip.
974 * MTU not changed while receiver active.
976 static inline void skge_rx_reuse(struct skge_element *e, unsigned int size)
978 struct skge_rx_desc *rd = e->desc;
981 rd->csum2_start = ETH_HLEN;
985 rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | size;
989 /* Free all buffers in receive ring, assumes receiver stopped */
990 static void skge_rx_clean(struct skge_port *skge)
992 struct skge_hw *hw = skge->hw;
993 struct skge_ring *ring = &skge->rx_ring;
994 struct skge_element *e;
998 struct skge_rx_desc *rd = e->desc;
1001 dma_unmap_single(&hw->pdev->dev,
1002 dma_unmap_addr(e, mapaddr),
1003 dma_unmap_len(e, maplen),
1005 dev_kfree_skb(e->skb);
1008 } while ((e = e->next) != ring->start);
1012 /* Allocate buffers for receive ring
1013 * For receive: to_clean is next received frame.
1015 static int skge_rx_fill(struct net_device *dev)
1017 struct skge_port *skge = netdev_priv(dev);
1018 struct skge_ring *ring = &skge->rx_ring;
1019 struct skge_element *e;
1023 struct sk_buff *skb;
1025 skb = __netdev_alloc_skb(dev, skge->rx_buf_size + NET_IP_ALIGN,
1030 skb_reserve(skb, NET_IP_ALIGN);
1031 if (skge_rx_setup(skge, e, skb, skge->rx_buf_size) < 0) {
1035 } while ((e = e->next) != ring->start);
1037 ring->to_clean = ring->start;
1041 static const char *skge_pause(enum pause_status status)
1044 case FLOW_STAT_NONE:
1046 case FLOW_STAT_REM_SEND:
1048 case FLOW_STAT_LOC_SEND:
1050 case FLOW_STAT_SYMMETRIC: /* Both station may send PAUSE */
1053 return "indeterminated";
1058 static void skge_link_up(struct skge_port *skge)
1060 skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG),
1061 LED_BLK_OFF|LED_SYNC_OFF|LED_REG_ON);
1063 netif_carrier_on(skge->netdev);
1064 netif_wake_queue(skge->netdev);
1066 netif_info(skge, link, skge->netdev,
1067 "Link is up at %d Mbps, %s duplex, flow control %s\n",
1069 skge->duplex == DUPLEX_FULL ? "full" : "half",
1070 skge_pause(skge->flow_status));
1073 static void skge_link_down(struct skge_port *skge)
1075 skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_REG_OFF);
1076 netif_carrier_off(skge->netdev);
1077 netif_stop_queue(skge->netdev);
1079 netif_info(skge, link, skge->netdev, "Link is down\n");
1082 static void xm_link_down(struct skge_hw *hw, int port)
1084 struct net_device *dev = hw->dev[port];
1085 struct skge_port *skge = netdev_priv(dev);
1087 xm_write16(hw, port, XM_IMSK, XM_IMSK_DISABLE);
1089 if (netif_carrier_ok(dev))
1090 skge_link_down(skge);
1093 static int __xm_phy_read(struct skge_hw *hw, int port, u16 reg, u16 *val)
1097 xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr);
1098 *val = xm_read16(hw, port, XM_PHY_DATA);
1100 if (hw->phy_type == SK_PHY_XMAC)
1103 for (i = 0; i < PHY_RETRIES; i++) {
1104 if (xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_RDY)
1111 *val = xm_read16(hw, port, XM_PHY_DATA);
1116 static u16 xm_phy_read(struct skge_hw *hw, int port, u16 reg)
1119 if (__xm_phy_read(hw, port, reg, &v))
1120 pr_warn("%s: phy read timed out\n", hw->dev[port]->name);
1124 static int xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val)
1128 xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr);
1129 for (i = 0; i < PHY_RETRIES; i++) {
1130 if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY))
1137 xm_write16(hw, port, XM_PHY_DATA, val);
1138 for (i = 0; i < PHY_RETRIES; i++) {
1139 if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY))
1146 static void genesis_init(struct skge_hw *hw)
1148 /* set blink source counter */
1149 skge_write32(hw, B2_BSC_INI, (SK_BLK_DUR * SK_FACT_53) / 100);
1150 skge_write8(hw, B2_BSC_CTRL, BSC_START);
1152 /* configure mac arbiter */
1153 skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR);
1155 /* configure mac arbiter timeout values */
1156 skge_write8(hw, B3_MA_TOINI_RX1, SK_MAC_TO_53);
1157 skge_write8(hw, B3_MA_TOINI_RX2, SK_MAC_TO_53);
1158 skge_write8(hw, B3_MA_TOINI_TX1, SK_MAC_TO_53);
1159 skge_write8(hw, B3_MA_TOINI_TX2, SK_MAC_TO_53);
1161 skge_write8(hw, B3_MA_RCINI_RX1, 0);
1162 skge_write8(hw, B3_MA_RCINI_RX2, 0);
1163 skge_write8(hw, B3_MA_RCINI_TX1, 0);
1164 skge_write8(hw, B3_MA_RCINI_TX2, 0);
1166 /* configure packet arbiter timeout */
1167 skge_write16(hw, B3_PA_CTRL, PA_RST_CLR);
1168 skge_write16(hw, B3_PA_TOINI_RX1, SK_PKT_TO_MAX);
1169 skge_write16(hw, B3_PA_TOINI_TX1, SK_PKT_TO_MAX);
1170 skge_write16(hw, B3_PA_TOINI_RX2, SK_PKT_TO_MAX);
1171 skge_write16(hw, B3_PA_TOINI_TX2, SK_PKT_TO_MAX);
1174 static void genesis_reset(struct skge_hw *hw, int port)
1176 static const u8 zero[8] = { 0 };
1179 skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0);
1181 /* reset the statistics module */
1182 xm_write32(hw, port, XM_GP_PORT, XM_GP_RES_STAT);
1183 xm_write16(hw, port, XM_IMSK, XM_IMSK_DISABLE);
1184 xm_write32(hw, port, XM_MODE, 0); /* clear Mode Reg */
1185 xm_write16(hw, port, XM_TX_CMD, 0); /* reset TX CMD Reg */
1186 xm_write16(hw, port, XM_RX_CMD, 0); /* reset RX CMD Reg */
1188 /* disable Broadcom PHY IRQ */
1189 if (hw->phy_type == SK_PHY_BCOM)
1190 xm_write16(hw, port, PHY_BCOM_INT_MASK, 0xffff);
1192 xm_outhash(hw, port, XM_HSM, zero);
1194 /* Flush TX and RX fifo */
1195 reg = xm_read32(hw, port, XM_MODE);
1196 xm_write32(hw, port, XM_MODE, reg | XM_MD_FTF);
1197 xm_write32(hw, port, XM_MODE, reg | XM_MD_FRF);
1200 /* Convert mode to MII values */
1201 static const u16 phy_pause_map[] = {
1202 [FLOW_MODE_NONE] = 0,
1203 [FLOW_MODE_LOC_SEND] = PHY_AN_PAUSE_ASYM,
1204 [FLOW_MODE_SYMMETRIC] = PHY_AN_PAUSE_CAP,
1205 [FLOW_MODE_SYM_OR_REM] = PHY_AN_PAUSE_CAP | PHY_AN_PAUSE_ASYM,
1208 /* special defines for FIBER (88E1011S only) */
1209 static const u16 fiber_pause_map[] = {
1210 [FLOW_MODE_NONE] = PHY_X_P_NO_PAUSE,
1211 [FLOW_MODE_LOC_SEND] = PHY_X_P_ASYM_MD,
1212 [FLOW_MODE_SYMMETRIC] = PHY_X_P_SYM_MD,
1213 [FLOW_MODE_SYM_OR_REM] = PHY_X_P_BOTH_MD,
1217 /* Check status of Broadcom phy link */
1218 static void bcom_check_link(struct skge_hw *hw, int port)
1220 struct net_device *dev = hw->dev[port];
1221 struct skge_port *skge = netdev_priv(dev);
1224 /* read twice because of latch */
1225 xm_phy_read(hw, port, PHY_BCOM_STAT);
1226 status = xm_phy_read(hw, port, PHY_BCOM_STAT);
1228 if ((status & PHY_ST_LSYNC) == 0) {
1229 xm_link_down(hw, port);
1233 if (skge->autoneg == AUTONEG_ENABLE) {
1236 if (!(status & PHY_ST_AN_OVER))
1239 lpa = xm_phy_read(hw, port, PHY_XMAC_AUNE_LP);
1240 if (lpa & PHY_B_AN_RF) {
1241 netdev_notice(dev, "remote fault\n");
1245 aux = xm_phy_read(hw, port, PHY_BCOM_AUX_STAT);
1247 /* Check Duplex mismatch */
1248 switch (aux & PHY_B_AS_AN_RES_MSK) {
1249 case PHY_B_RES_1000FD:
1250 skge->duplex = DUPLEX_FULL;
1252 case PHY_B_RES_1000HD:
1253 skge->duplex = DUPLEX_HALF;
1256 netdev_notice(dev, "duplex mismatch\n");
1260 /* We are using IEEE 802.3z/D5.0 Table 37-4 */
1261 switch (aux & PHY_B_AS_PAUSE_MSK) {
1262 case PHY_B_AS_PAUSE_MSK:
1263 skge->flow_status = FLOW_STAT_SYMMETRIC;
1266 skge->flow_status = FLOW_STAT_REM_SEND;
1269 skge->flow_status = FLOW_STAT_LOC_SEND;
1272 skge->flow_status = FLOW_STAT_NONE;
1274 skge->speed = SPEED_1000;
1277 if (!netif_carrier_ok(dev))
1278 genesis_link_up(skge);
1281 /* Broadcom 5400 only supports giagabit! SysKonnect did not put an additional
1282 * Phy on for 100 or 10Mbit operation
1284 static void bcom_phy_init(struct skge_port *skge)
1286 struct skge_hw *hw = skge->hw;
1287 int port = skge->port;
1289 u16 id1, r, ext, ctl;
1291 /* magic workaround patterns for Broadcom */
1292 static const struct {
1296 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 },
1297 { 0x17, 0x0013 }, { 0x15, 0x0404 }, { 0x17, 0x8006 },
1298 { 0x15, 0x0132 }, { 0x17, 0x8006 }, { 0x15, 0x0232 },
1299 { 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 },
1301 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1204 },
1302 { 0x17, 0x0013 }, { 0x15, 0x0A04 }, { 0x18, 0x0420 },
1305 /* read Id from external PHY (all have the same address) */
1306 id1 = xm_phy_read(hw, port, PHY_XMAC_ID1);
1308 /* Optimize MDIO transfer by suppressing preamble. */
1309 r = xm_read16(hw, port, XM_MMU_CMD);
1311 xm_write16(hw, port, XM_MMU_CMD, r);
1314 case PHY_BCOM_ID1_C0:
1316 * Workaround BCOM Errata for the C0 type.
1317 * Write magic patterns to reserved registers.
1319 for (i = 0; i < ARRAY_SIZE(C0hack); i++)
1320 xm_phy_write(hw, port,
1321 C0hack[i].reg, C0hack[i].val);
1324 case PHY_BCOM_ID1_A1:
1326 * Workaround BCOM Errata for the A1 type.
1327 * Write magic patterns to reserved registers.
1329 for (i = 0; i < ARRAY_SIZE(A1hack); i++)
1330 xm_phy_write(hw, port,
1331 A1hack[i].reg, A1hack[i].val);
1336 * Workaround BCOM Errata (#10523) for all BCom PHYs.
1337 * Disable Power Management after reset.
1339 r = xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL);
1340 r |= PHY_B_AC_DIS_PM;
1341 xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, r);
1344 xm_read16(hw, port, XM_ISRC);
1346 ext = PHY_B_PEC_EN_LTR; /* enable tx led */
1347 ctl = PHY_CT_SP1000; /* always 1000mbit */
1349 if (skge->autoneg == AUTONEG_ENABLE) {
1351 * Workaround BCOM Errata #1 for the C5 type.
1352 * 1000Base-T Link Acquisition Failure in Slave Mode
1353 * Set Repeater/DTE bit 10 of the 1000Base-T Control Register
1355 u16 adv = PHY_B_1000C_RD;
1356 if (skge->advertising & ADVERTISED_1000baseT_Half)
1357 adv |= PHY_B_1000C_AHD;
1358 if (skge->advertising & ADVERTISED_1000baseT_Full)
1359 adv |= PHY_B_1000C_AFD;
1360 xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, adv);
1362 ctl |= PHY_CT_ANE | PHY_CT_RE_CFG;
1364 if (skge->duplex == DUPLEX_FULL)
1365 ctl |= PHY_CT_DUP_MD;
1366 /* Force to slave */
1367 xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, PHY_B_1000C_MSE);
1370 /* Set autonegotiation pause parameters */
1371 xm_phy_write(hw, port, PHY_BCOM_AUNE_ADV,
1372 phy_pause_map[skge->flow_control] | PHY_AN_CSMA);
1374 /* Handle Jumbo frames */
1375 if (hw->dev[port]->mtu > ETH_DATA_LEN) {
1376 xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL,
1377 PHY_B_AC_TX_TST | PHY_B_AC_LONG_PACK);
1379 ext |= PHY_B_PEC_HIGH_LA;
1383 xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, ext);
1384 xm_phy_write(hw, port, PHY_BCOM_CTRL, ctl);
1386 /* Use link status change interrupt */
1387 xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK);
1390 static void xm_phy_init(struct skge_port *skge)
1392 struct skge_hw *hw = skge->hw;
1393 int port = skge->port;
1396 if (skge->autoneg == AUTONEG_ENABLE) {
1397 if (skge->advertising & ADVERTISED_1000baseT_Half)
1398 ctrl |= PHY_X_AN_HD;
1399 if (skge->advertising & ADVERTISED_1000baseT_Full)
1400 ctrl |= PHY_X_AN_FD;
1402 ctrl |= fiber_pause_map[skge->flow_control];
1404 xm_phy_write(hw, port, PHY_XMAC_AUNE_ADV, ctrl);
1406 /* Restart Auto-negotiation */
1407 ctrl = PHY_CT_ANE | PHY_CT_RE_CFG;
1409 /* Set DuplexMode in Config register */
1410 if (skge->duplex == DUPLEX_FULL)
1411 ctrl |= PHY_CT_DUP_MD;
1413 * Do NOT enable Auto-negotiation here. This would hold
1414 * the link down because no IDLEs are transmitted
1418 xm_phy_write(hw, port, PHY_XMAC_CTRL, ctrl);
1420 /* Poll PHY for status changes */
1421 mod_timer(&skge->link_timer, jiffies + LINK_HZ);
1424 static int xm_check_link(struct net_device *dev)
1426 struct skge_port *skge = netdev_priv(dev);
1427 struct skge_hw *hw = skge->hw;
1428 int port = skge->port;
1431 /* read twice because of latch */
1432 xm_phy_read(hw, port, PHY_XMAC_STAT);
1433 status = xm_phy_read(hw, port, PHY_XMAC_STAT);
1435 if ((status & PHY_ST_LSYNC) == 0) {
1436 xm_link_down(hw, port);
1440 if (skge->autoneg == AUTONEG_ENABLE) {
1443 if (!(status & PHY_ST_AN_OVER))
1446 lpa = xm_phy_read(hw, port, PHY_XMAC_AUNE_LP);
1447 if (lpa & PHY_B_AN_RF) {
1448 netdev_notice(dev, "remote fault\n");
1452 res = xm_phy_read(hw, port, PHY_XMAC_RES_ABI);
1454 /* Check Duplex mismatch */
1455 switch (res & (PHY_X_RS_HD | PHY_X_RS_FD)) {
1457 skge->duplex = DUPLEX_FULL;
1460 skge->duplex = DUPLEX_HALF;
1463 netdev_notice(dev, "duplex mismatch\n");
1467 /* We are using IEEE 802.3z/D5.0 Table 37-4 */
1468 if ((skge->flow_control == FLOW_MODE_SYMMETRIC ||
1469 skge->flow_control == FLOW_MODE_SYM_OR_REM) &&
1470 (lpa & PHY_X_P_SYM_MD))
1471 skge->flow_status = FLOW_STAT_SYMMETRIC;
1472 else if (skge->flow_control == FLOW_MODE_SYM_OR_REM &&
1473 (lpa & PHY_X_RS_PAUSE) == PHY_X_P_ASYM_MD)
1474 /* Enable PAUSE receive, disable PAUSE transmit */
1475 skge->flow_status = FLOW_STAT_REM_SEND;
1476 else if (skge->flow_control == FLOW_MODE_LOC_SEND &&
1477 (lpa & PHY_X_RS_PAUSE) == PHY_X_P_BOTH_MD)
1478 /* Disable PAUSE receive, enable PAUSE transmit */
1479 skge->flow_status = FLOW_STAT_LOC_SEND;
1481 skge->flow_status = FLOW_STAT_NONE;
1483 skge->speed = SPEED_1000;
1486 if (!netif_carrier_ok(dev))
1487 genesis_link_up(skge);
1491 /* Poll to check for link coming up.
1493 * Since internal PHY is wired to a level triggered pin, can't
1494 * get an interrupt when carrier is detected, need to poll for
1497 static void xm_link_timer(struct timer_list *t)
1499 struct skge_port *skge = from_timer(skge, t, link_timer);
1500 struct net_device *dev = skge->netdev;
1501 struct skge_hw *hw = skge->hw;
1502 int port = skge->port;
1504 unsigned long flags;
1506 if (!netif_running(dev))
1509 spin_lock_irqsave(&hw->phy_lock, flags);
1512 * Verify that the link by checking GPIO register three times.
1513 * This pin has the signal from the link_sync pin connected to it.
1515 for (i = 0; i < 3; i++) {
1516 if (xm_read16(hw, port, XM_GP_PORT) & XM_GP_INP_ASS)
1520 /* Re-enable interrupt to detect link down */
1521 if (xm_check_link(dev)) {
1522 u16 msk = xm_read16(hw, port, XM_IMSK);
1523 msk &= ~XM_IS_INP_ASS;
1524 xm_write16(hw, port, XM_IMSK, msk);
1525 xm_read16(hw, port, XM_ISRC);
1528 mod_timer(&skge->link_timer,
1529 round_jiffies(jiffies + LINK_HZ));
1531 spin_unlock_irqrestore(&hw->phy_lock, flags);
1534 static void genesis_mac_init(struct skge_hw *hw, int port)
1536 struct net_device *dev = hw->dev[port];
1537 struct skge_port *skge = netdev_priv(dev);
1538 int jumbo = hw->dev[port]->mtu > ETH_DATA_LEN;
1541 static const u8 zero[6] = { 0 };
1543 for (i = 0; i < 10; i++) {
1544 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1),
1546 if (skge_read16(hw, SK_REG(port, TX_MFF_CTRL1)) & MFF_SET_MAC_RST)
1551 netdev_warn(dev, "genesis reset failed\n");
1554 /* Unreset the XMAC. */
1555 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST);
1558 * Perform additional initialization for external PHYs,
1559 * namely for the 1000baseTX cards that use the XMAC's
1562 if (hw->phy_type != SK_PHY_XMAC) {
1563 /* Take external Phy out of reset */
1564 r = skge_read32(hw, B2_GP_IO);
1566 r |= GP_DIR_0|GP_IO_0;
1568 r |= GP_DIR_2|GP_IO_2;
1570 skge_write32(hw, B2_GP_IO, r);
1572 /* Enable GMII interface */
1573 xm_write16(hw, port, XM_HW_CFG, XM_HW_GMII_MD);
1577 switch (hw->phy_type) {
1582 bcom_phy_init(skge);
1583 bcom_check_link(hw, port);
1586 /* Set Station Address */
1587 xm_outaddr(hw, port, XM_SA, dev->dev_addr);
1589 /* We don't use match addresses so clear */
1590 for (i = 1; i < 16; i++)
1591 xm_outaddr(hw, port, XM_EXM(i), zero);
1593 /* Clear MIB counters */
1594 xm_write16(hw, port, XM_STAT_CMD,
1595 XM_SC_CLR_RXC | XM_SC_CLR_TXC);
1596 /* Clear two times according to Errata #3 */
1597 xm_write16(hw, port, XM_STAT_CMD,
1598 XM_SC_CLR_RXC | XM_SC_CLR_TXC);
1600 /* configure Rx High Water Mark (XM_RX_HI_WM) */
1601 xm_write16(hw, port, XM_RX_HI_WM, 1450);
1603 /* We don't need the FCS appended to the packet. */
1604 r = XM_RX_LENERR_OK | XM_RX_STRIP_FCS;
1606 r |= XM_RX_BIG_PK_OK;
1608 if (skge->duplex == DUPLEX_HALF) {
1610 * If in manual half duplex mode the other side might be in
1611 * full duplex mode, so ignore if a carrier extension is not seen
1612 * on frames received
1614 r |= XM_RX_DIS_CEXT;
1616 xm_write16(hw, port, XM_RX_CMD, r);
1618 /* We want short frames padded to 60 bytes. */
1619 xm_write16(hw, port, XM_TX_CMD, XM_TX_AUTO_PAD);
1621 /* Increase threshold for jumbo frames on dual port */
1622 if (hw->ports > 1 && jumbo)
1623 xm_write16(hw, port, XM_TX_THR, 1020);
1625 xm_write16(hw, port, XM_TX_THR, 512);
1628 * Enable the reception of all error frames. This is
1629 * a necessary evil due to the design of the XMAC. The
1630 * XMAC's receive FIFO is only 8K in size, however jumbo
1631 * frames can be up to 9000 bytes in length. When bad
1632 * frame filtering is enabled, the XMAC's RX FIFO operates
1633 * in 'store and forward' mode. For this to work, the
1634 * entire frame has to fit into the FIFO, but that means
1635 * that jumbo frames larger than 8192 bytes will be
1636 * truncated. Disabling all bad frame filtering causes
1637 * the RX FIFO to operate in streaming mode, in which
1638 * case the XMAC will start transferring frames out of the
1639 * RX FIFO as soon as the FIFO threshold is reached.
1641 xm_write32(hw, port, XM_MODE, XM_DEF_MODE);
1645 * Initialize the Receive Counter Event Mask (XM_RX_EV_MSK)
1646 * - Enable all bits excepting 'Octets Rx OK Low CntOv'
1647 * and 'Octets Rx OK Hi Cnt Ov'.
1649 xm_write32(hw, port, XM_RX_EV_MSK, XMR_DEF_MSK);
1652 * Initialize the Transmit Counter Event Mask (XM_TX_EV_MSK)
1653 * - Enable all bits excepting 'Octets Tx OK Low CntOv'
1654 * and 'Octets Tx OK Hi Cnt Ov'.
1656 xm_write32(hw, port, XM_TX_EV_MSK, XMT_DEF_MSK);
1658 /* Configure MAC arbiter */
1659 skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR);
1661 /* configure timeout values */
1662 skge_write8(hw, B3_MA_TOINI_RX1, 72);
1663 skge_write8(hw, B3_MA_TOINI_RX2, 72);
1664 skge_write8(hw, B3_MA_TOINI_TX1, 72);
1665 skge_write8(hw, B3_MA_TOINI_TX2, 72);
1667 skge_write8(hw, B3_MA_RCINI_RX1, 0);
1668 skge_write8(hw, B3_MA_RCINI_RX2, 0);
1669 skge_write8(hw, B3_MA_RCINI_TX1, 0);
1670 skge_write8(hw, B3_MA_RCINI_TX2, 0);
1672 /* Configure Rx MAC FIFO */
1673 skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_CLR);
1674 skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_TIM_PAT);
1675 skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_ENA_OP_MD);
1677 /* Configure Tx MAC FIFO */
1678 skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_CLR);
1679 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_TX_CTRL_DEF);
1680 skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_ENA_OP_MD);
1683 /* Enable frame flushing if jumbo frames used */
1684 skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_FLUSH);
1686 /* enable timeout timers if normal frames */
1687 skge_write16(hw, B3_PA_CTRL,
1688 (port == 0) ? PA_ENA_TO_TX1 : PA_ENA_TO_TX2);
1692 static void genesis_stop(struct skge_port *skge)
1694 struct skge_hw *hw = skge->hw;
1695 int port = skge->port;
1696 unsigned retries = 1000;
1699 /* Disable Tx and Rx */
1700 cmd = xm_read16(hw, port, XM_MMU_CMD);
1701 cmd &= ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX);
1702 xm_write16(hw, port, XM_MMU_CMD, cmd);
1704 genesis_reset(hw, port);
1706 /* Clear Tx packet arbiter timeout IRQ */
1707 skge_write16(hw, B3_PA_CTRL,
1708 port == 0 ? PA_CLR_TO_TX1 : PA_CLR_TO_TX2);
1711 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST);
1713 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_SET_MAC_RST);
1714 if (!(skge_read16(hw, SK_REG(port, TX_MFF_CTRL1)) & MFF_SET_MAC_RST))
1716 } while (--retries > 0);
1718 /* For external PHYs there must be special handling */
1719 if (hw->phy_type != SK_PHY_XMAC) {
1720 u32 reg = skge_read32(hw, B2_GP_IO);
1728 skge_write32(hw, B2_GP_IO, reg);
1729 skge_read32(hw, B2_GP_IO);
1732 xm_write16(hw, port, XM_MMU_CMD,
1733 xm_read16(hw, port, XM_MMU_CMD)
1734 & ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX));
1736 xm_read16(hw, port, XM_MMU_CMD);
1740 static void genesis_get_stats(struct skge_port *skge, u64 *data)
1742 struct skge_hw *hw = skge->hw;
1743 int port = skge->port;
1745 unsigned long timeout = jiffies + HZ;
1747 xm_write16(hw, port,
1748 XM_STAT_CMD, XM_SC_SNP_TXC | XM_SC_SNP_RXC);
1750 /* wait for update to complete */
1751 while (xm_read16(hw, port, XM_STAT_CMD)
1752 & (XM_SC_SNP_TXC | XM_SC_SNP_RXC)) {
1753 if (time_after(jiffies, timeout))
1758 /* special case for 64 bit octet counter */
1759 data[0] = (u64) xm_read32(hw, port, XM_TXO_OK_HI) << 32
1760 | xm_read32(hw, port, XM_TXO_OK_LO);
1761 data[1] = (u64) xm_read32(hw, port, XM_RXO_OK_HI) << 32
1762 | xm_read32(hw, port, XM_RXO_OK_LO);
1764 for (i = 2; i < ARRAY_SIZE(skge_stats); i++)
1765 data[i] = xm_read32(hw, port, skge_stats[i].xmac_offset);
1768 static void genesis_mac_intr(struct skge_hw *hw, int port)
1770 struct net_device *dev = hw->dev[port];
1771 struct skge_port *skge = netdev_priv(dev);
1772 u16 status = xm_read16(hw, port, XM_ISRC);
1774 netif_printk(skge, intr, KERN_DEBUG, skge->netdev,
1775 "mac interrupt status 0x%x\n", status);
1777 if (hw->phy_type == SK_PHY_XMAC && (status & XM_IS_INP_ASS)) {
1778 xm_link_down(hw, port);
1779 mod_timer(&skge->link_timer, jiffies + 1);
1782 if (status & XM_IS_TXF_UR) {
1783 xm_write32(hw, port, XM_MODE, XM_MD_FTF);
1784 ++dev->stats.tx_fifo_errors;
1788 static void genesis_link_up(struct skge_port *skge)
1790 struct skge_hw *hw = skge->hw;
1791 int port = skge->port;
1795 cmd = xm_read16(hw, port, XM_MMU_CMD);
1798 * enabling pause frame reception is required for 1000BT
1799 * because the XMAC is not reset if the link is going down
1801 if (skge->flow_status == FLOW_STAT_NONE ||
1802 skge->flow_status == FLOW_STAT_LOC_SEND)
1803 /* Disable Pause Frame Reception */
1804 cmd |= XM_MMU_IGN_PF;
1806 /* Enable Pause Frame Reception */
1807 cmd &= ~XM_MMU_IGN_PF;
1809 xm_write16(hw, port, XM_MMU_CMD, cmd);
1811 mode = xm_read32(hw, port, XM_MODE);
1812 if (skge->flow_status == FLOW_STAT_SYMMETRIC ||
1813 skge->flow_status == FLOW_STAT_LOC_SEND) {
1815 * Configure Pause Frame Generation
1816 * Use internal and external Pause Frame Generation.
1817 * Sending pause frames is edge triggered.
1818 * Send a Pause frame with the maximum pause time if
1819 * internal oder external FIFO full condition occurs.
1820 * Send a zero pause time frame to re-start transmission.
1822 /* XM_PAUSE_DA = '010000C28001' (default) */
1823 /* XM_MAC_PTIME = 0xffff (maximum) */
1824 /* remember this value is defined in big endian (!) */
1825 xm_write16(hw, port, XM_MAC_PTIME, 0xffff);
1827 mode |= XM_PAUSE_MODE;
1828 skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_PAUSE);
1831 * disable pause frame generation is required for 1000BT
1832 * because the XMAC is not reset if the link is going down
1834 /* Disable Pause Mode in Mode Register */
1835 mode &= ~XM_PAUSE_MODE;
1837 skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_DIS_PAUSE);
1840 xm_write32(hw, port, XM_MODE, mode);
1842 /* Turn on detection of Tx underrun */
1843 msk = xm_read16(hw, port, XM_IMSK);
1844 msk &= ~XM_IS_TXF_UR;
1845 xm_write16(hw, port, XM_IMSK, msk);
1847 xm_read16(hw, port, XM_ISRC);
1849 /* get MMU Command Reg. */
1850 cmd = xm_read16(hw, port, XM_MMU_CMD);
1851 if (hw->phy_type != SK_PHY_XMAC && skge->duplex == DUPLEX_FULL)
1852 cmd |= XM_MMU_GMII_FD;
1855 * Workaround BCOM Errata (#10523) for all BCom Phys
1856 * Enable Power Management after link up
1858 if (hw->phy_type == SK_PHY_BCOM) {
1859 xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL,
1860 xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL)
1861 & ~PHY_B_AC_DIS_PM);
1862 xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK);
1866 xm_write16(hw, port, XM_MMU_CMD,
1867 cmd | XM_MMU_ENA_RX | XM_MMU_ENA_TX);
1872 static inline void bcom_phy_intr(struct skge_port *skge)
1874 struct skge_hw *hw = skge->hw;
1875 int port = skge->port;
1878 isrc = xm_phy_read(hw, port, PHY_BCOM_INT_STAT);
1879 netif_printk(skge, intr, KERN_DEBUG, skge->netdev,
1880 "phy interrupt status 0x%x\n", isrc);
1882 if (isrc & PHY_B_IS_PSE)
1883 pr_err("%s: uncorrectable pair swap error\n",
1884 hw->dev[port]->name);
1886 /* Workaround BCom Errata:
1887 * enable and disable loopback mode if "NO HCD" occurs.
1889 if (isrc & PHY_B_IS_NO_HDCL) {
1890 u16 ctrl = xm_phy_read(hw, port, PHY_BCOM_CTRL);
1891 xm_phy_write(hw, port, PHY_BCOM_CTRL,
1892 ctrl | PHY_CT_LOOP);
1893 xm_phy_write(hw, port, PHY_BCOM_CTRL,
1894 ctrl & ~PHY_CT_LOOP);
1897 if (isrc & (PHY_B_IS_AN_PR | PHY_B_IS_LST_CHANGE))
1898 bcom_check_link(hw, port);
1902 static int gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val)
1906 gma_write16(hw, port, GM_SMI_DATA, val);
1907 gma_write16(hw, port, GM_SMI_CTRL,
1908 GM_SMI_CT_PHY_AD(hw->phy_addr) | GM_SMI_CT_REG_AD(reg));
1909 for (i = 0; i < PHY_RETRIES; i++) {
1912 if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY))
1916 pr_warn("%s: phy write timeout\n", hw->dev[port]->name);
1920 static int __gm_phy_read(struct skge_hw *hw, int port, u16 reg, u16 *val)
1924 gma_write16(hw, port, GM_SMI_CTRL,
1925 GM_SMI_CT_PHY_AD(hw->phy_addr)
1926 | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD);
1928 for (i = 0; i < PHY_RETRIES; i++) {
1930 if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL)
1936 *val = gma_read16(hw, port, GM_SMI_DATA);
1940 static u16 gm_phy_read(struct skge_hw *hw, int port, u16 reg)
1943 if (__gm_phy_read(hw, port, reg, &v))
1944 pr_warn("%s: phy read timeout\n", hw->dev[port]->name);
1948 /* Marvell Phy Initialization */
1949 static void yukon_init(struct skge_hw *hw, int port)
1951 struct skge_port *skge = netdev_priv(hw->dev[port]);
1952 u16 ctrl, ct1000, adv;
1954 if (skge->autoneg == AUTONEG_ENABLE) {
1955 u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
1957 ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK |
1958 PHY_M_EC_MAC_S_MSK);
1959 ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ);
1961 ectrl |= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1);
1963 gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl);
1966 ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
1967 if (skge->autoneg == AUTONEG_DISABLE)
1968 ctrl &= ~PHY_CT_ANE;
1970 ctrl |= PHY_CT_RESET;
1971 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
1977 if (skge->autoneg == AUTONEG_ENABLE) {
1979 if (skge->advertising & ADVERTISED_1000baseT_Full)
1980 ct1000 |= PHY_M_1000C_AFD;
1981 if (skge->advertising & ADVERTISED_1000baseT_Half)
1982 ct1000 |= PHY_M_1000C_AHD;
1983 if (skge->advertising & ADVERTISED_100baseT_Full)
1984 adv |= PHY_M_AN_100_FD;
1985 if (skge->advertising & ADVERTISED_100baseT_Half)
1986 adv |= PHY_M_AN_100_HD;
1987 if (skge->advertising & ADVERTISED_10baseT_Full)
1988 adv |= PHY_M_AN_10_FD;
1989 if (skge->advertising & ADVERTISED_10baseT_Half)
1990 adv |= PHY_M_AN_10_HD;
1992 /* Set Flow-control capabilities */
1993 adv |= phy_pause_map[skge->flow_control];
1995 if (skge->advertising & ADVERTISED_1000baseT_Full)
1996 adv |= PHY_M_AN_1000X_AFD;
1997 if (skge->advertising & ADVERTISED_1000baseT_Half)
1998 adv |= PHY_M_AN_1000X_AHD;
2000 adv |= fiber_pause_map[skge->flow_control];
2003 /* Restart Auto-negotiation */
2004 ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG;
2006 /* forced speed/duplex settings */
2007 ct1000 = PHY_M_1000C_MSE;
2009 if (skge->duplex == DUPLEX_FULL)
2010 ctrl |= PHY_CT_DUP_MD;
2012 switch (skge->speed) {
2014 ctrl |= PHY_CT_SP1000;
2017 ctrl |= PHY_CT_SP100;
2021 ctrl |= PHY_CT_RESET;
2024 gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000);
2026 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv);
2027 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
2029 /* Enable phy interrupt on autonegotiation complete (or link up) */
2030 if (skge->autoneg == AUTONEG_ENABLE)
2031 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_MSK);
2033 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK);
2036 static void yukon_reset(struct skge_hw *hw, int port)
2038 gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);/* disable PHY IRQs */
2039 gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */
2040 gma_write16(hw, port, GM_MC_ADDR_H2, 0);
2041 gma_write16(hw, port, GM_MC_ADDR_H3, 0);
2042 gma_write16(hw, port, GM_MC_ADDR_H4, 0);
2044 gma_write16(hw, port, GM_RX_CTRL,
2045 gma_read16(hw, port, GM_RX_CTRL)
2046 | GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
2049 /* Apparently, early versions of Yukon-Lite had wrong chip_id? */
2050 static int is_yukon_lite_a0(struct skge_hw *hw)
2055 if (hw->chip_id != CHIP_ID_YUKON)
2058 reg = skge_read32(hw, B2_FAR);
2059 skge_write8(hw, B2_FAR + 3, 0xff);
2060 ret = (skge_read8(hw, B2_FAR + 3) != 0);
2061 skge_write32(hw, B2_FAR, reg);
2065 static void yukon_mac_init(struct skge_hw *hw, int port)
2067 struct skge_port *skge = netdev_priv(hw->dev[port]);
2070 const u8 *addr = hw->dev[port]->dev_addr;
2072 /* WA code for COMA mode -- set PHY reset */
2073 if (hw->chip_id == CHIP_ID_YUKON_LITE &&
2074 hw->chip_rev >= CHIP_REV_YU_LITE_A3) {
2075 reg = skge_read32(hw, B2_GP_IO);
2076 reg |= GP_DIR_9 | GP_IO_9;
2077 skge_write32(hw, B2_GP_IO, reg);
2081 skge_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
2082 skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
2084 /* WA code for COMA mode -- clear PHY reset */
2085 if (hw->chip_id == CHIP_ID_YUKON_LITE &&
2086 hw->chip_rev >= CHIP_REV_YU_LITE_A3) {
2087 reg = skge_read32(hw, B2_GP_IO);
2090 skge_write32(hw, B2_GP_IO, reg);
2093 /* Set hardware config mode */
2094 reg = GPC_INT_POL_HI | GPC_DIS_FC | GPC_DIS_SLEEP |
2095 GPC_ENA_XC | GPC_ANEG_ADV_ALL_M | GPC_ENA_PAUSE;
2096 reg |= hw->copper ? GPC_HWCFG_GMII_COP : GPC_HWCFG_GMII_FIB;
2098 /* Clear GMC reset */
2099 skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_SET);
2100 skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_CLR);
2101 skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON | GMC_RST_CLR);
2103 if (skge->autoneg == AUTONEG_DISABLE) {
2104 reg = GM_GPCR_AU_ALL_DIS;
2105 gma_write16(hw, port, GM_GP_CTRL,
2106 gma_read16(hw, port, GM_GP_CTRL) | reg);
2108 switch (skge->speed) {
2110 reg &= ~GM_GPCR_SPEED_100;
2111 reg |= GM_GPCR_SPEED_1000;
2114 reg &= ~GM_GPCR_SPEED_1000;
2115 reg |= GM_GPCR_SPEED_100;
2118 reg &= ~(GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100);
2122 if (skge->duplex == DUPLEX_FULL)
2123 reg |= GM_GPCR_DUP_FULL;
2125 reg = GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100 | GM_GPCR_DUP_FULL;
2127 switch (skge->flow_control) {
2128 case FLOW_MODE_NONE:
2129 skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
2130 reg |= GM_GPCR_FC_TX_DIS | GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
2132 case FLOW_MODE_LOC_SEND:
2133 /* disable Rx flow-control */
2134 reg |= GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
2136 case FLOW_MODE_SYMMETRIC:
2137 case FLOW_MODE_SYM_OR_REM:
2138 /* enable Tx & Rx flow-control */
2142 gma_write16(hw, port, GM_GP_CTRL, reg);
2143 skge_read16(hw, SK_REG(port, GMAC_IRQ_SRC));
2145 yukon_init(hw, port);
2148 reg = gma_read16(hw, port, GM_PHY_ADDR);
2149 gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR);
2151 for (i = 0; i < GM_MIB_CNT_SIZE; i++)
2152 gma_read16(hw, port, GM_MIB_CNT_BASE + 8*i);
2153 gma_write16(hw, port, GM_PHY_ADDR, reg);
2155 /* transmit control */
2156 gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF));
2158 /* receive control reg: unicast + multicast + no FCS */
2159 gma_write16(hw, port, GM_RX_CTRL,
2160 GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA);
2162 /* transmit flow control */
2163 gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff);
2165 /* transmit parameter */
2166 gma_write16(hw, port, GM_TX_PARAM,
2167 TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) |
2168 TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) |
2169 TX_IPG_JAM_DATA(TX_IPG_JAM_DEF));
2171 /* configure the Serial Mode Register */
2172 reg = DATA_BLIND_VAL(DATA_BLIND_DEF)
2174 | IPG_DATA_VAL(IPG_DATA_DEF);
2176 if (hw->dev[port]->mtu > ETH_DATA_LEN)
2177 reg |= GM_SMOD_JUMBO_ENA;
2179 gma_write16(hw, port, GM_SERIAL_MODE, reg);
2181 /* physical address: used for pause frames */
2182 gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr);
2183 /* virtual address for data */
2184 gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr);
2186 /* enable interrupt mask for counter overflows */
2187 gma_write16(hw, port, GM_TX_IRQ_MSK, 0);
2188 gma_write16(hw, port, GM_RX_IRQ_MSK, 0);
2189 gma_write16(hw, port, GM_TR_IRQ_MSK, 0);
2191 /* Initialize Mac Fifo */
2193 /* Configure Rx MAC FIFO */
2194 skge_write16(hw, SK_REG(port, RX_GMF_FL_MSK), RX_FF_FL_DEF_MSK);
2195 reg = GMF_OPER_ON | GMF_RX_F_FL_ON;
2197 /* disable Rx GMAC FIFO Flush for YUKON-Lite Rev. A0 only */
2198 if (is_yukon_lite_a0(hw))
2199 reg &= ~GMF_RX_F_FL_ON;
2201 skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
2202 skge_write16(hw, SK_REG(port, RX_GMF_CTRL_T), reg);
2204 * because Pause Packet Truncation in GMAC is not working
2205 * we have to increase the Flush Threshold to 64 bytes
2206 * in order to flush pause packets in Rx FIFO on Yukon-1
2208 skge_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF+1);
2210 /* Configure Tx MAC FIFO */
2211 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);
2212 skge_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);
2215 /* Go into power down mode */
2216 static void yukon_suspend(struct skge_hw *hw, int port)
2220 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
2221 ctrl |= PHY_M_PC_POL_R_DIS;
2222 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
2224 ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
2225 ctrl |= PHY_CT_RESET;
2226 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
2228 /* switch IEEE compatible power down mode on */
2229 ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
2230 ctrl |= PHY_CT_PDOWN;
2231 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
2234 static void yukon_stop(struct skge_port *skge)
2236 struct skge_hw *hw = skge->hw;
2237 int port = skge->port;
2239 skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0);
2240 yukon_reset(hw, port);
2242 gma_write16(hw, port, GM_GP_CTRL,
2243 gma_read16(hw, port, GM_GP_CTRL)
2244 & ~(GM_GPCR_TX_ENA|GM_GPCR_RX_ENA));
2245 gma_read16(hw, port, GM_GP_CTRL);
2247 yukon_suspend(hw, port);
2249 /* set GPHY Control reset */
2250 skge_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
2251 skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
2254 static void yukon_get_stats(struct skge_port *skge, u64 *data)
2256 struct skge_hw *hw = skge->hw;
2257 int port = skge->port;
2260 data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32
2261 | gma_read32(hw, port, GM_TXO_OK_LO);
2262 data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32
2263 | gma_read32(hw, port, GM_RXO_OK_LO);
2265 for (i = 2; i < ARRAY_SIZE(skge_stats); i++)
2266 data[i] = gma_read32(hw, port,
2267 skge_stats[i].gma_offset);
2270 static void yukon_mac_intr(struct skge_hw *hw, int port)
2272 struct net_device *dev = hw->dev[port];
2273 struct skge_port *skge = netdev_priv(dev);
2274 u8 status = skge_read8(hw, SK_REG(port, GMAC_IRQ_SRC));
2276 netif_printk(skge, intr, KERN_DEBUG, skge->netdev,
2277 "mac interrupt status 0x%x\n", status);
2279 if (status & GM_IS_RX_FF_OR) {
2280 ++dev->stats.rx_fifo_errors;
2281 skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO);
2284 if (status & GM_IS_TX_FF_UR) {
2285 ++dev->stats.tx_fifo_errors;
2286 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU);
2291 static u16 yukon_speed(const struct skge_hw *hw, u16 aux)
2293 switch (aux & PHY_M_PS_SPEED_MSK) {
2294 case PHY_M_PS_SPEED_1000:
2296 case PHY_M_PS_SPEED_100:
2303 static void yukon_link_up(struct skge_port *skge)
2305 struct skge_hw *hw = skge->hw;
2306 int port = skge->port;
2309 /* Enable Transmit FIFO Underrun */
2310 skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK);
2312 reg = gma_read16(hw, port, GM_GP_CTRL);
2313 if (skge->duplex == DUPLEX_FULL || skge->autoneg == AUTONEG_ENABLE)
2314 reg |= GM_GPCR_DUP_FULL;
2317 reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA;
2318 gma_write16(hw, port, GM_GP_CTRL, reg);
2320 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK);
2324 static void yukon_link_down(struct skge_port *skge)
2326 struct skge_hw *hw = skge->hw;
2327 int port = skge->port;
2330 ctrl = gma_read16(hw, port, GM_GP_CTRL);
2331 ctrl &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA);
2332 gma_write16(hw, port, GM_GP_CTRL, ctrl);
2334 if (skge->flow_status == FLOW_STAT_REM_SEND) {
2335 ctrl = gm_phy_read(hw, port, PHY_MARV_AUNE_ADV);
2336 ctrl |= PHY_M_AN_ASP;
2337 /* restore Asymmetric Pause bit */
2338 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, ctrl);
2341 skge_link_down(skge);
2343 yukon_init(hw, port);
2346 static void yukon_phy_intr(struct skge_port *skge)
2348 struct skge_hw *hw = skge->hw;
2349 int port = skge->port;
2350 const char *reason = NULL;
2351 u16 istatus, phystat;
2353 istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT);
2354 phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT);
2356 netif_printk(skge, intr, KERN_DEBUG, skge->netdev,
2357 "phy interrupt status 0x%x 0x%x\n", istatus, phystat);
2359 if (istatus & PHY_M_IS_AN_COMPL) {
2360 if (gm_phy_read(hw, port, PHY_MARV_AUNE_LP)
2362 reason = "remote fault";
2366 if (gm_phy_read(hw, port, PHY_MARV_1000T_STAT) & PHY_B_1000S_MSF) {
2367 reason = "master/slave fault";
2371 if (!(phystat & PHY_M_PS_SPDUP_RES)) {
2372 reason = "speed/duplex";
2376 skge->duplex = (phystat & PHY_M_PS_FULL_DUP)
2377 ? DUPLEX_FULL : DUPLEX_HALF;
2378 skge->speed = yukon_speed(hw, phystat);
2380 /* We are using IEEE 802.3z/D5.0 Table 37-4 */
2381 switch (phystat & PHY_M_PS_PAUSE_MSK) {
2382 case PHY_M_PS_PAUSE_MSK:
2383 skge->flow_status = FLOW_STAT_SYMMETRIC;
2385 case PHY_M_PS_RX_P_EN:
2386 skge->flow_status = FLOW_STAT_REM_SEND;
2388 case PHY_M_PS_TX_P_EN:
2389 skge->flow_status = FLOW_STAT_LOC_SEND;
2392 skge->flow_status = FLOW_STAT_NONE;
2395 if (skge->flow_status == FLOW_STAT_NONE ||
2396 (skge->speed < SPEED_1000 && skge->duplex == DUPLEX_HALF))
2397 skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
2399 skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
2400 yukon_link_up(skge);
2404 if (istatus & PHY_M_IS_LSP_CHANGE)
2405 skge->speed = yukon_speed(hw, phystat);
2407 if (istatus & PHY_M_IS_DUP_CHANGE)
2408 skge->duplex = (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
2409 if (istatus & PHY_M_IS_LST_CHANGE) {
2410 if (phystat & PHY_M_PS_LINK_UP)
2411 yukon_link_up(skge);
2413 yukon_link_down(skge);
2417 pr_err("%s: autonegotiation failed (%s)\n", skge->netdev->name, reason);
2419 /* XXX restart autonegotiation? */
2422 static void skge_phy_reset(struct skge_port *skge)
2424 struct skge_hw *hw = skge->hw;
2425 int port = skge->port;
2426 struct net_device *dev = hw->dev[port];
2428 netif_stop_queue(skge->netdev);
2429 netif_carrier_off(skge->netdev);
2431 spin_lock_bh(&hw->phy_lock);
2432 if (is_genesis(hw)) {
2433 genesis_reset(hw, port);
2434 genesis_mac_init(hw, port);
2436 yukon_reset(hw, port);
2437 yukon_init(hw, port);
2439 spin_unlock_bh(&hw->phy_lock);
2441 skge_set_multicast(dev);
2444 /* Basic MII support */
2445 static int skge_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2447 struct mii_ioctl_data *data = if_mii(ifr);
2448 struct skge_port *skge = netdev_priv(dev);
2449 struct skge_hw *hw = skge->hw;
2450 int err = -EOPNOTSUPP;
2452 if (!netif_running(dev))
2453 return -ENODEV; /* Phy still in reset */
2457 data->phy_id = hw->phy_addr;
2462 spin_lock_bh(&hw->phy_lock);
2465 err = __xm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val);
2467 err = __gm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val);
2468 spin_unlock_bh(&hw->phy_lock);
2469 data->val_out = val;
2474 spin_lock_bh(&hw->phy_lock);
2476 err = xm_phy_write(hw, skge->port, data->reg_num & 0x1f,
2479 err = gm_phy_write(hw, skge->port, data->reg_num & 0x1f,
2481 spin_unlock_bh(&hw->phy_lock);
2487 static void skge_ramset(struct skge_hw *hw, u16 q, u32 start, size_t len)
2493 end = start + len - 1;
2495 skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR);
2496 skge_write32(hw, RB_ADDR(q, RB_START), start);
2497 skge_write32(hw, RB_ADDR(q, RB_WP), start);
2498 skge_write32(hw, RB_ADDR(q, RB_RP), start);
2499 skge_write32(hw, RB_ADDR(q, RB_END), end);
2501 if (q == Q_R1 || q == Q_R2) {
2502 /* Set thresholds on receive queue's */
2503 skge_write32(hw, RB_ADDR(q, RB_RX_UTPP),
2505 skge_write32(hw, RB_ADDR(q, RB_RX_LTPP),
2508 /* Enable store & forward on Tx queue's because
2509 * Tx FIFO is only 4K on Genesis and 1K on Yukon
2511 skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD);
2514 skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD);
2517 /* Setup Bus Memory Interface */
2518 static void skge_qset(struct skge_port *skge, u16 q,
2519 const struct skge_element *e)
2521 struct skge_hw *hw = skge->hw;
2522 u32 watermark = 0x600;
2523 u64 base = skge->dma + (e->desc - skge->mem);
2525 /* optimization to reduce window on 32bit/33mhz */
2526 if ((skge_read16(hw, B0_CTST) & (CS_BUS_CLOCK | CS_BUS_SLOT_SZ)) == 0)
2529 skge_write32(hw, Q_ADDR(q, Q_CSR), CSR_CLR_RESET);
2530 skge_write32(hw, Q_ADDR(q, Q_F), watermark);
2531 skge_write32(hw, Q_ADDR(q, Q_DA_H), (u32)(base >> 32));
2532 skge_write32(hw, Q_ADDR(q, Q_DA_L), (u32)base);
2535 static int skge_up(struct net_device *dev)
2537 struct skge_port *skge = netdev_priv(dev);
2538 struct skge_hw *hw = skge->hw;
2539 int port = skge->port;
2540 u32 chunk, ram_addr;
2541 size_t rx_size, tx_size;
2544 if (!is_valid_ether_addr(dev->dev_addr))
2547 netif_info(skge, ifup, skge->netdev, "enabling interface\n");
2549 if (dev->mtu > RX_BUF_SIZE)
2550 skge->rx_buf_size = dev->mtu + ETH_HLEN;
2552 skge->rx_buf_size = RX_BUF_SIZE;
2555 rx_size = skge->rx_ring.count * sizeof(struct skge_rx_desc);
2556 tx_size = skge->tx_ring.count * sizeof(struct skge_tx_desc);
2557 skge->mem_size = tx_size + rx_size;
2558 skge->mem = dma_alloc_coherent(&hw->pdev->dev, skge->mem_size,
2559 &skge->dma, GFP_KERNEL);
2563 BUG_ON(skge->dma & 7);
2565 if (upper_32_bits(skge->dma) != upper_32_bits(skge->dma + skge->mem_size)) {
2566 dev_err(&hw->pdev->dev, "dma_alloc_coherent region crosses 4G boundary\n");
2571 err = skge_ring_alloc(&skge->rx_ring, skge->mem, skge->dma);
2575 err = skge_rx_fill(dev);
2579 err = skge_ring_alloc(&skge->tx_ring, skge->mem + rx_size,
2580 skge->dma + rx_size);
2584 if (hw->ports == 1) {
2585 err = request_irq(hw->pdev->irq, skge_intr, IRQF_SHARED,
2588 netdev_err(dev, "Unable to allocate interrupt %d error: %d\n",
2589 hw->pdev->irq, err);
2594 /* Initialize MAC */
2595 netif_carrier_off(dev);
2596 spin_lock_bh(&hw->phy_lock);
2598 genesis_mac_init(hw, port);
2600 yukon_mac_init(hw, port);
2601 spin_unlock_bh(&hw->phy_lock);
2603 /* Configure RAMbuffers - equally between ports and tx/rx */
2604 chunk = (hw->ram_size - hw->ram_offset) / (hw->ports * 2);
2605 ram_addr = hw->ram_offset + 2 * chunk * port;
2607 skge_ramset(hw, rxqaddr[port], ram_addr, chunk);
2608 skge_qset(skge, rxqaddr[port], skge->rx_ring.to_clean);
2610 BUG_ON(skge->tx_ring.to_use != skge->tx_ring.to_clean);
2611 skge_ramset(hw, txqaddr[port], ram_addr+chunk, chunk);
2612 skge_qset(skge, txqaddr[port], skge->tx_ring.to_use);
2614 /* Start receiver BMU */
2616 skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_START | CSR_IRQ_CL_F);
2617 skge_led(skge, LED_MODE_ON);
2619 spin_lock_irq(&hw->hw_lock);
2620 hw->intr_mask |= portmask[port];
2621 skge_write32(hw, B0_IMSK, hw->intr_mask);
2622 skge_read32(hw, B0_IMSK);
2623 spin_unlock_irq(&hw->hw_lock);
2625 napi_enable(&skge->napi);
2627 skge_set_multicast(dev);
2632 kfree(skge->tx_ring.start);
2634 skge_rx_clean(skge);
2635 kfree(skge->rx_ring.start);
2637 dma_free_coherent(&hw->pdev->dev, skge->mem_size, skge->mem,
2645 static void skge_rx_stop(struct skge_hw *hw, int port)
2647 skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_STOP);
2648 skge_write32(hw, RB_ADDR(port ? Q_R2 : Q_R1, RB_CTRL),
2649 RB_RST_SET|RB_DIS_OP_MD);
2650 skge_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_SET_RESET);
2653 static int skge_down(struct net_device *dev)
2655 struct skge_port *skge = netdev_priv(dev);
2656 struct skge_hw *hw = skge->hw;
2657 int port = skge->port;
2662 netif_info(skge, ifdown, skge->netdev, "disabling interface\n");
2664 netif_tx_disable(dev);
2666 if (is_genesis(hw) && hw->phy_type == SK_PHY_XMAC)
2667 del_timer_sync(&skge->link_timer);
2669 napi_disable(&skge->napi);
2670 netif_carrier_off(dev);
2672 spin_lock_irq(&hw->hw_lock);
2673 hw->intr_mask &= ~portmask[port];
2674 skge_write32(hw, B0_IMSK, (hw->ports == 1) ? 0 : hw->intr_mask);
2675 skge_read32(hw, B0_IMSK);
2676 spin_unlock_irq(&hw->hw_lock);
2679 free_irq(hw->pdev->irq, hw);
2681 skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_REG_OFF);
2687 /* Stop transmitter */
2688 skge_write8(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_STOP);
2689 skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL),
2690 RB_RST_SET|RB_DIS_OP_MD);
2693 /* Disable Force Sync bit and Enable Alloc bit */
2694 skge_write8(hw, SK_REG(port, TXA_CTRL),
2695 TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC);
2697 /* Stop Interval Timer and Limit Counter of Tx Arbiter */
2698 skge_write32(hw, SK_REG(port, TXA_ITI_INI), 0L);
2699 skge_write32(hw, SK_REG(port, TXA_LIM_INI), 0L);
2701 /* Reset PCI FIFO */
2702 skge_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_SET_RESET);
2703 skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET);
2705 /* Reset the RAM Buffer async Tx queue */
2706 skge_write8(hw, RB_ADDR(port == 0 ? Q_XA1 : Q_XA2, RB_CTRL), RB_RST_SET);
2708 skge_rx_stop(hw, port);
2710 if (is_genesis(hw)) {
2711 skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_SET);
2712 skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_SET);
2714 skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
2715 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET);
2718 skge_led(skge, LED_MODE_OFF);
2720 netif_tx_lock_bh(dev);
2722 netif_tx_unlock_bh(dev);
2724 skge_rx_clean(skge);
2726 kfree(skge->rx_ring.start);
2727 kfree(skge->tx_ring.start);
2728 dma_free_coherent(&hw->pdev->dev, skge->mem_size, skge->mem,
2734 static inline int skge_avail(const struct skge_ring *ring)
2737 return ((ring->to_clean > ring->to_use) ? 0 : ring->count)
2738 + (ring->to_clean - ring->to_use) - 1;
2741 static netdev_tx_t skge_xmit_frame(struct sk_buff *skb,
2742 struct net_device *dev)
2744 struct skge_port *skge = netdev_priv(dev);
2745 struct skge_hw *hw = skge->hw;
2746 struct skge_element *e;
2747 struct skge_tx_desc *td;
2752 if (skb_padto(skb, ETH_ZLEN))
2753 return NETDEV_TX_OK;
2755 if (unlikely(skge_avail(&skge->tx_ring) < skb_shinfo(skb)->nr_frags + 1))
2756 return NETDEV_TX_BUSY;
2758 e = skge->tx_ring.to_use;
2760 BUG_ON(td->control & BMU_OWN);
2762 len = skb_headlen(skb);
2763 map = dma_map_single(&hw->pdev->dev, skb->data, len, DMA_TO_DEVICE);
2764 if (dma_mapping_error(&hw->pdev->dev, map))
2767 dma_unmap_addr_set(e, mapaddr, map);
2768 dma_unmap_len_set(e, maplen, len);
2770 td->dma_lo = lower_32_bits(map);
2771 td->dma_hi = upper_32_bits(map);
2773 if (skb->ip_summed == CHECKSUM_PARTIAL) {
2774 const int offset = skb_checksum_start_offset(skb);
2776 /* This seems backwards, but it is what the sk98lin
2777 * does. Looks like hardware is wrong?
2779 if (ipip_hdr(skb)->protocol == IPPROTO_UDP &&
2780 hw->chip_rev == 0 && hw->chip_id == CHIP_ID_YUKON)
2781 control = BMU_TCP_CHECK;
2783 control = BMU_UDP_CHECK;
2786 td->csum_start = offset;
2787 td->csum_write = offset + skb->csum_offset;
2789 control = BMU_CHECK;
2791 if (!skb_shinfo(skb)->nr_frags) /* single buffer i.e. no fragments */
2792 control |= BMU_EOF | BMU_IRQ_EOF;
2794 struct skge_tx_desc *tf = td;
2796 control |= BMU_STFWD;
2797 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
2798 const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2800 map = skb_frag_dma_map(&hw->pdev->dev, frag, 0,
2801 skb_frag_size(frag), DMA_TO_DEVICE);
2802 if (dma_mapping_error(&hw->pdev->dev, map))
2803 goto mapping_unwind;
2808 BUG_ON(tf->control & BMU_OWN);
2810 tf->dma_lo = lower_32_bits(map);
2811 tf->dma_hi = upper_32_bits(map);
2812 dma_unmap_addr_set(e, mapaddr, map);
2813 dma_unmap_len_set(e, maplen, skb_frag_size(frag));
2815 tf->control = BMU_OWN | BMU_SW | control | skb_frag_size(frag);
2817 tf->control |= BMU_EOF | BMU_IRQ_EOF;
2819 /* Make sure all the descriptors written */
2821 td->control = BMU_OWN | BMU_SW | BMU_STF | control | len;
2824 netdev_sent_queue(dev, skb->len);
2826 skge_write8(hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_START);
2828 netif_printk(skge, tx_queued, KERN_DEBUG, skge->netdev,
2829 "tx queued, slot %td, len %d\n",
2830 e - skge->tx_ring.start, skb->len);
2832 skge->tx_ring.to_use = e->next;
2835 if (skge_avail(&skge->tx_ring) <= TX_LOW_WATER) {
2836 netdev_dbg(dev, "transmit queue full\n");
2837 netif_stop_queue(dev);
2840 return NETDEV_TX_OK;
2843 e = skge->tx_ring.to_use;
2844 dma_unmap_single(&hw->pdev->dev, dma_unmap_addr(e, mapaddr),
2845 dma_unmap_len(e, maplen), DMA_TO_DEVICE);
2848 dma_unmap_page(&hw->pdev->dev, dma_unmap_addr(e, mapaddr),
2849 dma_unmap_len(e, maplen), DMA_TO_DEVICE);
2853 if (net_ratelimit())
2854 dev_warn(&hw->pdev->dev, "%s: tx mapping error\n", dev->name);
2855 dev_kfree_skb_any(skb);
2856 return NETDEV_TX_OK;
2860 /* Free resources associated with this reing element */
2861 static inline void skge_tx_unmap(struct pci_dev *pdev, struct skge_element *e,
2864 /* skb header vs. fragment */
2865 if (control & BMU_STF)
2866 dma_unmap_single(&pdev->dev, dma_unmap_addr(e, mapaddr),
2867 dma_unmap_len(e, maplen), DMA_TO_DEVICE);
2869 dma_unmap_page(&pdev->dev, dma_unmap_addr(e, mapaddr),
2870 dma_unmap_len(e, maplen), DMA_TO_DEVICE);
2873 /* Free all buffers in transmit ring */
2874 static void skge_tx_clean(struct net_device *dev)
2876 struct skge_port *skge = netdev_priv(dev);
2877 struct skge_element *e;
2879 for (e = skge->tx_ring.to_clean; e != skge->tx_ring.to_use; e = e->next) {
2880 struct skge_tx_desc *td = e->desc;
2882 skge_tx_unmap(skge->hw->pdev, e, td->control);
2884 if (td->control & BMU_EOF)
2885 dev_kfree_skb(e->skb);
2889 netdev_reset_queue(dev);
2890 skge->tx_ring.to_clean = e;
2893 static void skge_tx_timeout(struct net_device *dev, unsigned int txqueue)
2895 struct skge_port *skge = netdev_priv(dev);
2897 netif_printk(skge, timer, KERN_DEBUG, skge->netdev, "tx timeout\n");
2899 skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_STOP);
2901 netif_wake_queue(dev);
2904 static int skge_change_mtu(struct net_device *dev, int new_mtu)
2908 if (!netif_running(dev)) {
2924 static const u8 pause_mc_addr[ETH_ALEN] = { 0x1, 0x80, 0xc2, 0x0, 0x0, 0x1 };
2926 static void genesis_add_filter(u8 filter[8], const u8 *addr)
2930 crc = ether_crc_le(ETH_ALEN, addr);
2932 filter[bit/8] |= 1 << (bit%8);
2935 static void genesis_set_multicast(struct net_device *dev)
2937 struct skge_port *skge = netdev_priv(dev);
2938 struct skge_hw *hw = skge->hw;
2939 int port = skge->port;
2940 struct netdev_hw_addr *ha;
2944 mode = xm_read32(hw, port, XM_MODE);
2945 mode |= XM_MD_ENA_HASH;
2946 if (dev->flags & IFF_PROMISC)
2947 mode |= XM_MD_ENA_PROM;
2949 mode &= ~XM_MD_ENA_PROM;
2951 if (dev->flags & IFF_ALLMULTI)
2952 memset(filter, 0xff, sizeof(filter));
2954 memset(filter, 0, sizeof(filter));
2956 if (skge->flow_status == FLOW_STAT_REM_SEND ||
2957 skge->flow_status == FLOW_STAT_SYMMETRIC)
2958 genesis_add_filter(filter, pause_mc_addr);
2960 netdev_for_each_mc_addr(ha, dev)
2961 genesis_add_filter(filter, ha->addr);
2964 xm_write32(hw, port, XM_MODE, mode);
2965 xm_outhash(hw, port, XM_HSM, filter);
2968 static void yukon_add_filter(u8 filter[8], const u8 *addr)
2970 u32 bit = ether_crc(ETH_ALEN, addr) & 0x3f;
2972 filter[bit / 8] |= 1 << (bit % 8);
2975 static void yukon_set_multicast(struct net_device *dev)
2977 struct skge_port *skge = netdev_priv(dev);
2978 struct skge_hw *hw = skge->hw;
2979 int port = skge->port;
2980 struct netdev_hw_addr *ha;
2981 int rx_pause = (skge->flow_status == FLOW_STAT_REM_SEND ||
2982 skge->flow_status == FLOW_STAT_SYMMETRIC);
2986 memset(filter, 0, sizeof(filter));
2988 reg = gma_read16(hw, port, GM_RX_CTRL);
2989 reg |= GM_RXCR_UCF_ENA;
2991 if (dev->flags & IFF_PROMISC) /* promiscuous */
2992 reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
2993 else if (dev->flags & IFF_ALLMULTI) /* all multicast */
2994 memset(filter, 0xff, sizeof(filter));
2995 else if (netdev_mc_empty(dev) && !rx_pause)/* no multicast */
2996 reg &= ~GM_RXCR_MCF_ENA;
2998 reg |= GM_RXCR_MCF_ENA;
3001 yukon_add_filter(filter, pause_mc_addr);
3003 netdev_for_each_mc_addr(ha, dev)
3004 yukon_add_filter(filter, ha->addr);
3008 gma_write16(hw, port, GM_MC_ADDR_H1,
3009 (u16)filter[0] | ((u16)filter[1] << 8));
3010 gma_write16(hw, port, GM_MC_ADDR_H2,
3011 (u16)filter[2] | ((u16)filter[3] << 8));
3012 gma_write16(hw, port, GM_MC_ADDR_H3,
3013 (u16)filter[4] | ((u16)filter[5] << 8));
3014 gma_write16(hw, port, GM_MC_ADDR_H4,
3015 (u16)filter[6] | ((u16)filter[7] << 8));
3017 gma_write16(hw, port, GM_RX_CTRL, reg);
3020 static inline u16 phy_length(const struct skge_hw *hw, u32 status)
3023 return status >> XMR_FS_LEN_SHIFT;
3025 return status >> GMR_FS_LEN_SHIFT;
3028 static inline int bad_phy_status(const struct skge_hw *hw, u32 status)
3031 return (status & (XMR_FS_ERR | XMR_FS_2L_VLAN)) != 0;
3033 return (status & GMR_FS_ANY_ERR) ||
3034 (status & GMR_FS_RX_OK) == 0;
3037 static void skge_set_multicast(struct net_device *dev)
3039 struct skge_port *skge = netdev_priv(dev);
3041 if (is_genesis(skge->hw))
3042 genesis_set_multicast(dev);
3044 yukon_set_multicast(dev);
3049 /* Get receive buffer from descriptor.
3050 * Handles copy of small buffers and reallocation failures
3052 static struct sk_buff *skge_rx_get(struct net_device *dev,
3053 struct skge_element *e,
3054 u32 control, u32 status, u16 csum)
3056 struct skge_port *skge = netdev_priv(dev);
3057 struct sk_buff *skb;
3058 u16 len = control & BMU_BBC;
3060 netif_printk(skge, rx_status, KERN_DEBUG, skge->netdev,
3061 "rx slot %td status 0x%x len %d\n",
3062 e - skge->rx_ring.start, status, len);
3064 if (len > skge->rx_buf_size)
3067 if ((control & (BMU_EOF|BMU_STF)) != (BMU_STF|BMU_EOF))
3070 if (bad_phy_status(skge->hw, status))
3073 if (phy_length(skge->hw, status) != len)
3076 if (len < RX_COPY_THRESHOLD) {
3077 skb = netdev_alloc_skb_ip_align(dev, len);
3081 dma_sync_single_for_cpu(&skge->hw->pdev->dev,
3082 dma_unmap_addr(e, mapaddr),
3083 dma_unmap_len(e, maplen),
3085 skb_copy_from_linear_data(e->skb, skb->data, len);
3086 dma_sync_single_for_device(&skge->hw->pdev->dev,
3087 dma_unmap_addr(e, mapaddr),
3088 dma_unmap_len(e, maplen),
3090 skge_rx_reuse(e, skge->rx_buf_size);
3092 struct skge_element ee;
3093 struct sk_buff *nskb;
3095 nskb = netdev_alloc_skb_ip_align(dev, skge->rx_buf_size);
3102 prefetch(skb->data);
3104 if (skge_rx_setup(skge, e, nskb, skge->rx_buf_size) < 0) {
3105 dev_kfree_skb(nskb);
3109 dma_unmap_single(&skge->hw->pdev->dev,
3110 dma_unmap_addr(&ee, mapaddr),
3111 dma_unmap_len(&ee, maplen), DMA_FROM_DEVICE);
3116 if (dev->features & NETIF_F_RXCSUM) {
3117 skb->csum = le16_to_cpu(csum);
3118 skb->ip_summed = CHECKSUM_COMPLETE;
3121 skb->protocol = eth_type_trans(skb, dev);
3126 netif_printk(skge, rx_err, KERN_DEBUG, skge->netdev,
3127 "rx err, slot %td control 0x%x status 0x%x\n",
3128 e - skge->rx_ring.start, control, status);
3130 if (is_genesis(skge->hw)) {
3131 if (status & (XMR_FS_RUNT|XMR_FS_LNG_ERR))
3132 dev->stats.rx_length_errors++;
3133 if (status & XMR_FS_FRA_ERR)
3134 dev->stats.rx_frame_errors++;
3135 if (status & XMR_FS_FCS_ERR)
3136 dev->stats.rx_crc_errors++;
3138 if (status & (GMR_FS_LONG_ERR|GMR_FS_UN_SIZE))
3139 dev->stats.rx_length_errors++;
3140 if (status & GMR_FS_FRAGMENT)
3141 dev->stats.rx_frame_errors++;
3142 if (status & GMR_FS_CRC_ERR)
3143 dev->stats.rx_crc_errors++;
3147 skge_rx_reuse(e, skge->rx_buf_size);
3151 /* Free all buffers in Tx ring which are no longer owned by device */
3152 static void skge_tx_done(struct net_device *dev)
3154 struct skge_port *skge = netdev_priv(dev);
3155 struct skge_ring *ring = &skge->tx_ring;
3156 struct skge_element *e;
3157 unsigned int bytes_compl = 0, pkts_compl = 0;
3159 skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F);
3161 for (e = ring->to_clean; e != ring->to_use; e = e->next) {
3162 u32 control = ((const struct skge_tx_desc *) e->desc)->control;
3164 if (control & BMU_OWN)
3167 skge_tx_unmap(skge->hw->pdev, e, control);
3169 if (control & BMU_EOF) {
3170 netif_printk(skge, tx_done, KERN_DEBUG, skge->netdev,
3171 "tx done slot %td\n",
3172 e - skge->tx_ring.start);
3175 bytes_compl += e->skb->len;
3177 dev_consume_skb_any(e->skb);
3180 netdev_completed_queue(dev, pkts_compl, bytes_compl);
3181 skge->tx_ring.to_clean = e;
3183 /* Can run lockless until we need to synchronize to restart queue. */
3186 if (unlikely(netif_queue_stopped(dev) &&
3187 skge_avail(&skge->tx_ring) > TX_LOW_WATER)) {
3189 if (unlikely(netif_queue_stopped(dev) &&
3190 skge_avail(&skge->tx_ring) > TX_LOW_WATER)) {
3191 netif_wake_queue(dev);
3194 netif_tx_unlock(dev);
3198 static int skge_poll(struct napi_struct *napi, int budget)
3200 struct skge_port *skge = container_of(napi, struct skge_port, napi);
3201 struct net_device *dev = skge->netdev;
3202 struct skge_hw *hw = skge->hw;
3203 struct skge_ring *ring = &skge->rx_ring;
3204 struct skge_element *e;
3209 skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F);
3211 for (e = ring->to_clean; prefetch(e->next), work_done < budget; e = e->next) {
3212 struct skge_rx_desc *rd = e->desc;
3213 struct sk_buff *skb;
3217 control = rd->control;
3218 if (control & BMU_OWN)
3221 skb = skge_rx_get(dev, e, control, rd->status, rd->csum2);
3223 napi_gro_receive(napi, skb);
3229 /* restart receiver */
3231 skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR), CSR_START);
3233 if (work_done < budget && napi_complete_done(napi, work_done)) {
3234 unsigned long flags;
3236 spin_lock_irqsave(&hw->hw_lock, flags);
3237 hw->intr_mask |= napimask[skge->port];
3238 skge_write32(hw, B0_IMSK, hw->intr_mask);
3239 skge_read32(hw, B0_IMSK);
3240 spin_unlock_irqrestore(&hw->hw_lock, flags);
3246 /* Parity errors seem to happen when Genesis is connected to a switch
3247 * with no other ports present. Heartbeat error??
3249 static void skge_mac_parity(struct skge_hw *hw, int port)
3251 struct net_device *dev = hw->dev[port];
3253 ++dev->stats.tx_heartbeat_errors;
3256 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1),
3259 /* HW-Bug #8: cleared by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE */
3260 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T),
3261 (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0)
3262 ? GMF_CLI_TX_FC : GMF_CLI_TX_PE);
3265 static void skge_mac_intr(struct skge_hw *hw, int port)
3268 genesis_mac_intr(hw, port);
3270 yukon_mac_intr(hw, port);
3273 /* Handle device specific framing and timeout interrupts */
3274 static void skge_error_irq(struct skge_hw *hw)
3276 struct pci_dev *pdev = hw->pdev;
3277 u32 hwstatus = skge_read32(hw, B0_HWE_ISRC);
3279 if (is_genesis(hw)) {
3280 /* clear xmac errors */
3281 if (hwstatus & (IS_NO_STAT_M1|IS_NO_TIST_M1))
3282 skge_write16(hw, RX_MFF_CTRL1, MFF_CLR_INSTAT);
3283 if (hwstatus & (IS_NO_STAT_M2|IS_NO_TIST_M2))
3284 skge_write16(hw, RX_MFF_CTRL2, MFF_CLR_INSTAT);
3286 /* Timestamp (unused) overflow */
3287 if (hwstatus & IS_IRQ_TIST_OV)
3288 skge_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
3291 if (hwstatus & IS_RAM_RD_PAR) {
3292 dev_err(&pdev->dev, "Ram read data parity error\n");
3293 skge_write16(hw, B3_RI_CTRL, RI_CLR_RD_PERR);
3296 if (hwstatus & IS_RAM_WR_PAR) {
3297 dev_err(&pdev->dev, "Ram write data parity error\n");
3298 skge_write16(hw, B3_RI_CTRL, RI_CLR_WR_PERR);
3301 if (hwstatus & IS_M1_PAR_ERR)
3302 skge_mac_parity(hw, 0);
3304 if (hwstatus & IS_M2_PAR_ERR)
3305 skge_mac_parity(hw, 1);
3307 if (hwstatus & IS_R1_PAR_ERR) {
3308 dev_err(&pdev->dev, "%s: receive queue parity error\n",
3310 skge_write32(hw, B0_R1_CSR, CSR_IRQ_CL_P);
3313 if (hwstatus & IS_R2_PAR_ERR) {
3314 dev_err(&pdev->dev, "%s: receive queue parity error\n",
3316 skge_write32(hw, B0_R2_CSR, CSR_IRQ_CL_P);
3319 if (hwstatus & (IS_IRQ_MST_ERR|IS_IRQ_STAT)) {
3320 u16 pci_status, pci_cmd;
3322 pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
3323 pci_read_config_word(pdev, PCI_STATUS, &pci_status);
3325 dev_err(&pdev->dev, "PCI error cmd=%#x status=%#x\n",
3326 pci_cmd, pci_status);
3328 /* Write the error bits back to clear them. */
3329 pci_status &= PCI_STATUS_ERROR_BITS;
3330 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
3331 pci_write_config_word(pdev, PCI_COMMAND,
3332 pci_cmd | PCI_COMMAND_SERR | PCI_COMMAND_PARITY);
3333 pci_write_config_word(pdev, PCI_STATUS, pci_status);
3334 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
3336 /* if error still set then just ignore it */
3337 hwstatus = skge_read32(hw, B0_HWE_ISRC);
3338 if (hwstatus & IS_IRQ_STAT) {
3339 dev_warn(&hw->pdev->dev, "unable to clear error (so ignoring them)\n");
3340 hw->intr_mask &= ~IS_HW_ERR;
3346 * Interrupt from PHY are handled in tasklet (softirq)
3347 * because accessing phy registers requires spin wait which might
3348 * cause excess interrupt latency.
3350 static void skge_extirq(struct tasklet_struct *t)
3352 struct skge_hw *hw = from_tasklet(hw, t, phy_task);
3355 for (port = 0; port < hw->ports; port++) {
3356 struct net_device *dev = hw->dev[port];
3358 if (netif_running(dev)) {
3359 struct skge_port *skge = netdev_priv(dev);
3361 spin_lock(&hw->phy_lock);
3362 if (!is_genesis(hw))
3363 yukon_phy_intr(skge);
3364 else if (hw->phy_type == SK_PHY_BCOM)
3365 bcom_phy_intr(skge);
3366 spin_unlock(&hw->phy_lock);
3370 spin_lock_irq(&hw->hw_lock);
3371 hw->intr_mask |= IS_EXT_REG;
3372 skge_write32(hw, B0_IMSK, hw->intr_mask);
3373 skge_read32(hw, B0_IMSK);
3374 spin_unlock_irq(&hw->hw_lock);
3377 static irqreturn_t skge_intr(int irq, void *dev_id)
3379 struct skge_hw *hw = dev_id;
3383 spin_lock(&hw->hw_lock);
3384 /* Reading this register masks IRQ */
3385 status = skge_read32(hw, B0_SP_ISRC);
3386 if (status == 0 || status == ~0)
3390 status &= hw->intr_mask;
3391 if (status & IS_EXT_REG) {
3392 hw->intr_mask &= ~IS_EXT_REG;
3393 tasklet_schedule(&hw->phy_task);
3396 if (status & (IS_XA1_F|IS_R1_F)) {
3397 struct skge_port *skge = netdev_priv(hw->dev[0]);
3398 hw->intr_mask &= ~(IS_XA1_F|IS_R1_F);
3399 napi_schedule(&skge->napi);
3402 if (status & IS_PA_TO_TX1)
3403 skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX1);
3405 if (status & IS_PA_TO_RX1) {
3406 ++hw->dev[0]->stats.rx_over_errors;
3407 skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX1);
3411 if (status & IS_MAC1)
3412 skge_mac_intr(hw, 0);
3415 struct skge_port *skge = netdev_priv(hw->dev[1]);
3417 if (status & (IS_XA2_F|IS_R2_F)) {
3418 hw->intr_mask &= ~(IS_XA2_F|IS_R2_F);
3419 napi_schedule(&skge->napi);
3422 if (status & IS_PA_TO_RX2) {
3423 ++hw->dev[1]->stats.rx_over_errors;
3424 skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX2);
3427 if (status & IS_PA_TO_TX2)
3428 skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX2);
3430 if (status & IS_MAC2)
3431 skge_mac_intr(hw, 1);
3434 if (status & IS_HW_ERR)
3437 skge_write32(hw, B0_IMSK, hw->intr_mask);
3438 skge_read32(hw, B0_IMSK);
3439 spin_unlock(&hw->hw_lock);
3441 return IRQ_RETVAL(handled);
3444 #ifdef CONFIG_NET_POLL_CONTROLLER
3445 static void skge_netpoll(struct net_device *dev)
3447 struct skge_port *skge = netdev_priv(dev);
3449 disable_irq(dev->irq);
3450 skge_intr(dev->irq, skge->hw);
3451 enable_irq(dev->irq);
3455 static int skge_set_mac_address(struct net_device *dev, void *p)
3457 struct skge_port *skge = netdev_priv(dev);
3458 struct skge_hw *hw = skge->hw;
3459 unsigned port = skge->port;
3460 const struct sockaddr *addr = p;
3463 if (!is_valid_ether_addr(addr->sa_data))
3464 return -EADDRNOTAVAIL;
3466 eth_hw_addr_set(dev, addr->sa_data);
3468 if (!netif_running(dev)) {
3469 memcpy_toio(hw->regs + B2_MAC_1 + port*8, dev->dev_addr, ETH_ALEN);
3470 memcpy_toio(hw->regs + B2_MAC_2 + port*8, dev->dev_addr, ETH_ALEN);
3473 spin_lock_bh(&hw->phy_lock);
3474 ctrl = gma_read16(hw, port, GM_GP_CTRL);
3475 gma_write16(hw, port, GM_GP_CTRL, ctrl & ~GM_GPCR_RX_ENA);
3477 memcpy_toio(hw->regs + B2_MAC_1 + port*8, dev->dev_addr, ETH_ALEN);
3478 memcpy_toio(hw->regs + B2_MAC_2 + port*8, dev->dev_addr, ETH_ALEN);
3481 xm_outaddr(hw, port, XM_SA, dev->dev_addr);
3483 gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr);
3484 gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr);
3487 gma_write16(hw, port, GM_GP_CTRL, ctrl);
3488 spin_unlock_bh(&hw->phy_lock);
3494 static const struct {
3498 { CHIP_ID_GENESIS, "Genesis" },
3499 { CHIP_ID_YUKON, "Yukon" },
3500 { CHIP_ID_YUKON_LITE, "Yukon-Lite"},
3501 { CHIP_ID_YUKON_LP, "Yukon-LP"},
3504 static const char *skge_board_name(const struct skge_hw *hw)
3507 static char buf[16];
3509 for (i = 0; i < ARRAY_SIZE(skge_chips); i++)
3510 if (skge_chips[i].id == hw->chip_id)
3511 return skge_chips[i].name;
3513 snprintf(buf, sizeof(buf), "chipid 0x%x", hw->chip_id);
3519 * Setup the board data structure, but don't bring up
3522 static int skge_reset(struct skge_hw *hw)
3525 u16 ctst, pci_status;
3526 u8 t8, mac_cfg, pmd_type;
3529 ctst = skge_read16(hw, B0_CTST);
3532 skge_write8(hw, B0_CTST, CS_RST_SET);
3533 skge_write8(hw, B0_CTST, CS_RST_CLR);
3535 /* clear PCI errors, if any */
3536 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
3537 skge_write8(hw, B2_TST_CTRL2, 0);
3539 pci_read_config_word(hw->pdev, PCI_STATUS, &pci_status);
3540 pci_write_config_word(hw->pdev, PCI_STATUS,
3541 pci_status | PCI_STATUS_ERROR_BITS);
3542 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
3543 skge_write8(hw, B0_CTST, CS_MRST_CLR);
3545 /* restore CLK_RUN bits (for Yukon-Lite) */
3546 skge_write16(hw, B0_CTST,
3547 ctst & (CS_CLK_RUN_HOT|CS_CLK_RUN_RST|CS_CLK_RUN_ENA));
3549 hw->chip_id = skge_read8(hw, B2_CHIP_ID);
3550 hw->phy_type = skge_read8(hw, B2_E_1) & 0xf;
3551 pmd_type = skge_read8(hw, B2_PMD_TYP);
3552 hw->copper = (pmd_type == 'T' || pmd_type == '1');
3554 switch (hw->chip_id) {
3555 case CHIP_ID_GENESIS:
3556 #ifdef CONFIG_SKGE_GENESIS
3557 switch (hw->phy_type) {
3559 hw->phy_addr = PHY_ADDR_XMAC;
3562 hw->phy_addr = PHY_ADDR_BCOM;
3565 dev_err(&hw->pdev->dev, "unsupported phy type 0x%x\n",
3571 dev_err(&hw->pdev->dev, "Genesis chip detected but not configured\n");
3576 case CHIP_ID_YUKON_LITE:
3577 case CHIP_ID_YUKON_LP:
3578 if (hw->phy_type < SK_PHY_MARV_COPPER && pmd_type != 'S')
3581 hw->phy_addr = PHY_ADDR_MARV;
3585 dev_err(&hw->pdev->dev, "unsupported chip type 0x%x\n",
3590 mac_cfg = skge_read8(hw, B2_MAC_CFG);
3591 hw->ports = (mac_cfg & CFG_SNG_MAC) ? 1 : 2;
3592 hw->chip_rev = (mac_cfg & CFG_CHIP_R_MSK) >> 4;
3594 /* read the adapters RAM size */
3595 t8 = skge_read8(hw, B2_E_0);
3596 if (is_genesis(hw)) {
3598 /* special case: 4 x 64k x 36, offset = 0x80000 */
3599 hw->ram_size = 0x100000;
3600 hw->ram_offset = 0x80000;
3602 hw->ram_size = t8 * 512;
3604 hw->ram_size = 0x20000;
3606 hw->ram_size = t8 * 4096;
3608 hw->intr_mask = IS_HW_ERR;
3610 /* Use PHY IRQ for all but fiber based Genesis board */
3611 if (!(is_genesis(hw) && hw->phy_type == SK_PHY_XMAC))
3612 hw->intr_mask |= IS_EXT_REG;
3617 /* switch power to VCC (WA for VAUX problem) */
3618 skge_write8(hw, B0_POWER_CTRL,
3619 PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON);
3621 /* avoid boards with stuck Hardware error bits */
3622 if ((skge_read32(hw, B0_ISRC) & IS_HW_ERR) &&
3623 (skge_read32(hw, B0_HWE_ISRC) & IS_IRQ_SENSOR)) {
3624 dev_warn(&hw->pdev->dev, "stuck hardware sensor bit\n");
3625 hw->intr_mask &= ~IS_HW_ERR;
3628 /* Clear PHY COMA */
3629 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
3630 pci_read_config_dword(hw->pdev, PCI_DEV_REG1, ®);
3631 reg &= ~PCI_PHY_COMA;
3632 pci_write_config_dword(hw->pdev, PCI_DEV_REG1, reg);
3633 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
3636 for (i = 0; i < hw->ports; i++) {
3637 skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET);
3638 skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR);
3642 /* turn off hardware timer (unused) */
3643 skge_write8(hw, B2_TI_CTRL, TIM_STOP);
3644 skge_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ);
3645 skge_write8(hw, B0_LED, LED_STAT_ON);
3647 /* enable the Tx Arbiters */
3648 for (i = 0; i < hw->ports; i++)
3649 skge_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB);
3651 /* Initialize ram interface */
3652 skge_write16(hw, B3_RI_CTRL, RI_RST_CLR);
3654 skge_write8(hw, B3_RI_WTO_R1, SK_RI_TO_53);
3655 skge_write8(hw, B3_RI_WTO_XA1, SK_RI_TO_53);
3656 skge_write8(hw, B3_RI_WTO_XS1, SK_RI_TO_53);
3657 skge_write8(hw, B3_RI_RTO_R1, SK_RI_TO_53);
3658 skge_write8(hw, B3_RI_RTO_XA1, SK_RI_TO_53);
3659 skge_write8(hw, B3_RI_RTO_XS1, SK_RI_TO_53);
3660 skge_write8(hw, B3_RI_WTO_R2, SK_RI_TO_53);
3661 skge_write8(hw, B3_RI_WTO_XA2, SK_RI_TO_53);
3662 skge_write8(hw, B3_RI_WTO_XS2, SK_RI_TO_53);
3663 skge_write8(hw, B3_RI_RTO_R2, SK_RI_TO_53);
3664 skge_write8(hw, B3_RI_RTO_XA2, SK_RI_TO_53);
3665 skge_write8(hw, B3_RI_RTO_XS2, SK_RI_TO_53);
3667 skge_write32(hw, B0_HWE_IMSK, IS_ERR_MSK);
3669 /* Set interrupt moderation for Transmit only
3670 * Receive interrupts avoided by NAPI
3672 skge_write32(hw, B2_IRQM_MSK, IS_XA1_F|IS_XA2_F);
3673 skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, 100));
3674 skge_write32(hw, B2_IRQM_CTRL, TIM_START);
3676 /* Leave irq disabled until first port is brought up. */
3677 skge_write32(hw, B0_IMSK, 0);
3679 for (i = 0; i < hw->ports; i++) {
3681 genesis_reset(hw, i);
3690 #ifdef CONFIG_SKGE_DEBUG
3692 static struct dentry *skge_debug;
3694 static int skge_debug_show(struct seq_file *seq, void *v)
3696 struct net_device *dev = seq->private;
3697 const struct skge_port *skge = netdev_priv(dev);
3698 const struct skge_hw *hw = skge->hw;
3699 const struct skge_element *e;
3701 if (!netif_running(dev))
3704 seq_printf(seq, "IRQ src=%x mask=%x\n", skge_read32(hw, B0_ISRC),
3705 skge_read32(hw, B0_IMSK));
3707 seq_printf(seq, "Tx Ring: (%d)\n", skge_avail(&skge->tx_ring));
3708 for (e = skge->tx_ring.to_clean; e != skge->tx_ring.to_use; e = e->next) {
3709 const struct skge_tx_desc *t = e->desc;
3710 seq_printf(seq, "%#x dma=%#x%08x %#x csum=%#x/%x/%x\n",
3711 t->control, t->dma_hi, t->dma_lo, t->status,
3712 t->csum_offs, t->csum_write, t->csum_start);
3715 seq_puts(seq, "\nRx Ring:\n");
3716 for (e = skge->rx_ring.to_clean; ; e = e->next) {
3717 const struct skge_rx_desc *r = e->desc;
3719 if (r->control & BMU_OWN)
3722 seq_printf(seq, "%#x dma=%#x%08x %#x %#x csum=%#x/%x\n",
3723 r->control, r->dma_hi, r->dma_lo, r->status,
3724 r->timestamp, r->csum1, r->csum1_start);
3729 DEFINE_SHOW_ATTRIBUTE(skge_debug);
3732 * Use network device events to create/remove/rename
3733 * debugfs file entries
3735 static int skge_device_event(struct notifier_block *unused,
3736 unsigned long event, void *ptr)
3738 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3739 struct skge_port *skge;
3741 if (dev->netdev_ops->ndo_open != &skge_up || !skge_debug)
3744 skge = netdev_priv(dev);
3746 case NETDEV_CHANGENAME:
3748 skge->debugfs = debugfs_rename(skge_debug,
3750 skge_debug, dev->name);
3753 case NETDEV_GOING_DOWN:
3754 debugfs_remove(skge->debugfs);
3755 skge->debugfs = NULL;
3759 skge->debugfs = debugfs_create_file(dev->name, 0444, skge_debug,
3760 dev, &skge_debug_fops);
3768 static struct notifier_block skge_notifier = {
3769 .notifier_call = skge_device_event,
3773 static __init void skge_debug_init(void)
3775 skge_debug = debugfs_create_dir("skge", NULL);
3777 register_netdevice_notifier(&skge_notifier);
3780 static __exit void skge_debug_cleanup(void)
3783 unregister_netdevice_notifier(&skge_notifier);
3784 debugfs_remove(skge_debug);
3790 #define skge_debug_init()
3791 #define skge_debug_cleanup()
3794 static const struct net_device_ops skge_netdev_ops = {
3795 .ndo_open = skge_up,
3796 .ndo_stop = skge_down,
3797 .ndo_start_xmit = skge_xmit_frame,
3798 .ndo_eth_ioctl = skge_ioctl,
3799 .ndo_get_stats = skge_get_stats,
3800 .ndo_tx_timeout = skge_tx_timeout,
3801 .ndo_change_mtu = skge_change_mtu,
3802 .ndo_validate_addr = eth_validate_addr,
3803 .ndo_set_rx_mode = skge_set_multicast,
3804 .ndo_set_mac_address = skge_set_mac_address,
3805 #ifdef CONFIG_NET_POLL_CONTROLLER
3806 .ndo_poll_controller = skge_netpoll,
3811 /* Initialize network device */
3812 static struct net_device *skge_devinit(struct skge_hw *hw, int port,
3815 struct skge_port *skge;
3816 struct net_device *dev = alloc_etherdev(sizeof(*skge));
3822 SET_NETDEV_DEV(dev, &hw->pdev->dev);
3823 dev->netdev_ops = &skge_netdev_ops;
3824 dev->ethtool_ops = &skge_ethtool_ops;
3825 dev->watchdog_timeo = TX_WATCHDOG;
3826 dev->irq = hw->pdev->irq;
3828 /* MTU range: 60 - 9000 */
3829 dev->min_mtu = ETH_ZLEN;
3830 dev->max_mtu = ETH_JUMBO_MTU;
3833 dev->features |= NETIF_F_HIGHDMA;
3835 skge = netdev_priv(dev);
3836 netif_napi_add(dev, &skge->napi, skge_poll, NAPI_WEIGHT);
3839 skge->msg_enable = netif_msg_init(debug, default_msg);
3841 skge->tx_ring.count = DEFAULT_TX_RING_SIZE;
3842 skge->rx_ring.count = DEFAULT_RX_RING_SIZE;
3844 /* Auto speed and flow control */
3845 skge->autoneg = AUTONEG_ENABLE;
3846 skge->flow_control = FLOW_MODE_SYM_OR_REM;
3849 skge->advertising = skge_supported_modes(hw);
3851 if (device_can_wakeup(&hw->pdev->dev)) {
3852 skge->wol = wol_supported(hw) & WAKE_MAGIC;
3853 device_set_wakeup_enable(&hw->pdev->dev, skge->wol);
3856 hw->dev[port] = dev;
3860 /* Only used for Genesis XMAC */
3862 timer_setup(&skge->link_timer, xm_link_timer, 0);
3864 dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_SG |
3866 dev->features |= dev->hw_features;
3869 /* read the mac address */
3870 memcpy_fromio(addr, hw->regs + B2_MAC_1 + port*8, ETH_ALEN);
3871 eth_hw_addr_set(dev, addr);
3876 static void skge_show_addr(struct net_device *dev)
3878 const struct skge_port *skge = netdev_priv(dev);
3880 netif_info(skge, probe, skge->netdev, "addr %pM\n", dev->dev_addr);
3883 static int only_32bit_dma;
3885 static int skge_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
3887 struct net_device *dev, *dev1;
3889 int err, using_dac = 0;
3891 err = pci_enable_device(pdev);
3893 dev_err(&pdev->dev, "cannot enable PCI device\n");
3897 err = pci_request_regions(pdev, DRV_NAME);
3899 dev_err(&pdev->dev, "cannot obtain PCI resources\n");
3900 goto err_out_disable_pdev;
3903 pci_set_master(pdev);
3905 if (!only_32bit_dma && !dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
3907 err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
3908 } else if (!(err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)))) {
3910 err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
3914 dev_err(&pdev->dev, "no usable DMA configuration\n");
3915 goto err_out_free_regions;
3919 /* byte swap descriptors in hardware */
3923 pci_read_config_dword(pdev, PCI_DEV_REG2, ®);
3924 reg |= PCI_REV_DESC;
3925 pci_write_config_dword(pdev, PCI_DEV_REG2, reg);
3930 /* space for skge@pci:0000:04:00.0 */
3931 hw = kzalloc(sizeof(*hw) + strlen(DRV_NAME "@pci:")
3932 + strlen(pci_name(pdev)) + 1, GFP_KERNEL);
3934 goto err_out_free_regions;
3936 sprintf(hw->irq_name, DRV_NAME "@pci:%s", pci_name(pdev));
3939 spin_lock_init(&hw->hw_lock);
3940 spin_lock_init(&hw->phy_lock);
3941 tasklet_setup(&hw->phy_task, skge_extirq);
3943 hw->regs = ioremap(pci_resource_start(pdev, 0), 0x4000);
3945 dev_err(&pdev->dev, "cannot map device registers\n");
3946 goto err_out_free_hw;
3949 err = skge_reset(hw);
3951 goto err_out_iounmap;
3953 pr_info("%s addr 0x%llx irq %d chip %s rev %d\n",
3955 (unsigned long long)pci_resource_start(pdev, 0), pdev->irq,
3956 skge_board_name(hw), hw->chip_rev);
3958 dev = skge_devinit(hw, 0, using_dac);
3961 goto err_out_led_off;
3964 /* Some motherboards are broken and has zero in ROM. */
3965 if (!is_valid_ether_addr(dev->dev_addr))
3966 dev_warn(&pdev->dev, "bad (zero?) ethernet address in rom\n");
3968 err = register_netdev(dev);
3970 dev_err(&pdev->dev, "cannot register net device\n");
3971 goto err_out_free_netdev;
3974 skge_show_addr(dev);
3976 if (hw->ports > 1) {
3977 dev1 = skge_devinit(hw, 1, using_dac);
3980 goto err_out_unregister;
3983 err = register_netdev(dev1);
3985 dev_err(&pdev->dev, "cannot register second net device\n");
3986 goto err_out_free_dev1;
3989 err = request_irq(pdev->irq, skge_intr, IRQF_SHARED,
3992 dev_err(&pdev->dev, "cannot assign irq %d\n",
3994 goto err_out_unregister_dev1;
3997 skge_show_addr(dev1);
3999 pci_set_drvdata(pdev, hw);
4003 err_out_unregister_dev1:
4004 unregister_netdev(dev1);
4008 unregister_netdev(dev);
4009 err_out_free_netdev:
4012 skge_write16(hw, B0_LED, LED_STAT_OFF);
4017 err_out_free_regions:
4018 pci_release_regions(pdev);
4019 err_out_disable_pdev:
4020 pci_disable_device(pdev);
4025 static void skge_remove(struct pci_dev *pdev)
4027 struct skge_hw *hw = pci_get_drvdata(pdev);
4028 struct net_device *dev0, *dev1;
4035 unregister_netdev(dev1);
4037 unregister_netdev(dev0);
4039 tasklet_kill(&hw->phy_task);
4041 spin_lock_irq(&hw->hw_lock);
4044 if (hw->ports > 1) {
4045 skge_write32(hw, B0_IMSK, 0);
4046 skge_read32(hw, B0_IMSK);
4048 spin_unlock_irq(&hw->hw_lock);
4050 skge_write16(hw, B0_LED, LED_STAT_OFF);
4051 skge_write8(hw, B0_CTST, CS_RST_SET);
4054 free_irq(pdev->irq, hw);
4055 pci_release_regions(pdev);
4056 pci_disable_device(pdev);
4065 #ifdef CONFIG_PM_SLEEP
4066 static int skge_suspend(struct device *dev)
4068 struct skge_hw *hw = dev_get_drvdata(dev);
4074 for (i = 0; i < hw->ports; i++) {
4075 struct net_device *dev = hw->dev[i];
4076 struct skge_port *skge = netdev_priv(dev);
4078 if (netif_running(dev))
4082 skge_wol_init(skge);
4085 skge_write32(hw, B0_IMSK, 0);
4090 static int skge_resume(struct device *dev)
4092 struct skge_hw *hw = dev_get_drvdata(dev);
4098 err = skge_reset(hw);
4102 for (i = 0; i < hw->ports; i++) {
4103 struct net_device *dev = hw->dev[i];
4105 if (netif_running(dev)) {
4109 netdev_err(dev, "could not up: %d\n", err);
4119 static SIMPLE_DEV_PM_OPS(skge_pm_ops, skge_suspend, skge_resume);
4120 #define SKGE_PM_OPS (&skge_pm_ops)
4124 #define SKGE_PM_OPS NULL
4125 #endif /* CONFIG_PM_SLEEP */
4127 static void skge_shutdown(struct pci_dev *pdev)
4129 struct skge_hw *hw = pci_get_drvdata(pdev);
4135 for (i = 0; i < hw->ports; i++) {
4136 struct net_device *dev = hw->dev[i];
4137 struct skge_port *skge = netdev_priv(dev);
4140 skge_wol_init(skge);
4143 pci_wake_from_d3(pdev, device_may_wakeup(&pdev->dev));
4144 pci_set_power_state(pdev, PCI_D3hot);
4147 static struct pci_driver skge_driver = {
4149 .id_table = skge_id_table,
4150 .probe = skge_probe,
4151 .remove = skge_remove,
4152 .shutdown = skge_shutdown,
4153 .driver.pm = SKGE_PM_OPS,
4156 static const struct dmi_system_id skge_32bit_dma_boards[] = {
4158 .ident = "Gigabyte nForce boards",
4160 DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co"),
4161 DMI_MATCH(DMI_BOARD_NAME, "nForce"),
4165 .ident = "ASUS P5NSLI",
4167 DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
4168 DMI_MATCH(DMI_BOARD_NAME, "P5NSLI")
4172 .ident = "FUJITSU SIEMENS A8NE-FM",
4174 DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTek Computer INC."),
4175 DMI_MATCH(DMI_BOARD_NAME, "A8NE-FM")
4181 static int __init skge_init_module(void)
4183 if (dmi_check_system(skge_32bit_dma_boards))
4186 return pci_register_driver(&skge_driver);
4189 static void __exit skge_cleanup_module(void)
4191 pci_unregister_driver(&skge_driver);
4192 skge_debug_cleanup();
4195 module_init(skge_init_module);
4196 module_exit(skge_cleanup_module);