2 * New driver for Marvell Yukon chipset and SysKonnect Gigabit
3 * Ethernet adapters. Based on earlier sk98lin, e100 and
4 * FreeBSD if_sk drivers.
6 * This driver intentionally does not support all the features
7 * of the original driver such as link fail-over and link management because
8 * those should be done at higher levels.
10 * Copyright (C) 2004, 2005 Stephen Hemminger <shemminger@osdl.org>
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 #include <linux/kernel.h>
29 #include <linux/module.h>
30 #include <linux/moduleparam.h>
31 #include <linux/netdevice.h>
32 #include <linux/etherdevice.h>
33 #include <linux/ethtool.h>
34 #include <linux/pci.h>
35 #include <linux/if_vlan.h>
37 #include <linux/delay.h>
38 #include <linux/crc32.h>
39 #include <linux/dma-mapping.h>
40 #include <linux/mii.h>
45 #define DRV_NAME "skge"
46 #define DRV_VERSION "1.8"
47 #define PFX DRV_NAME " "
49 #define DEFAULT_TX_RING_SIZE 128
50 #define DEFAULT_RX_RING_SIZE 512
51 #define MAX_TX_RING_SIZE 1024
52 #define TX_LOW_WATER (MAX_SKB_FRAGS + 1)
53 #define MAX_RX_RING_SIZE 4096
54 #define RX_COPY_THRESHOLD 128
55 #define RX_BUF_SIZE 1536
56 #define PHY_RETRIES 1000
57 #define ETH_JUMBO_MTU 9000
58 #define TX_WATCHDOG (5 * HZ)
59 #define NAPI_WEIGHT 64
61 #define LINK_HZ (HZ/2)
63 MODULE_DESCRIPTION("SysKonnect Gigabit Ethernet driver");
64 MODULE_AUTHOR("Stephen Hemminger <shemminger@osdl.org>");
65 MODULE_LICENSE("GPL");
66 MODULE_VERSION(DRV_VERSION);
68 static const u32 default_msg
69 = NETIF_MSG_DRV| NETIF_MSG_PROBE| NETIF_MSG_LINK
70 | NETIF_MSG_IFUP| NETIF_MSG_IFDOWN;
72 static int debug = -1; /* defaults above */
73 module_param(debug, int, 0);
74 MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
76 static const struct pci_device_id skge_id_table[] = {
77 { PCI_DEVICE(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940) },
78 { PCI_DEVICE(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940B) },
79 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_GE) },
80 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_YU) },
81 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, PCI_DEVICE_ID_DLINK_DGE510T), },
82 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b01) }, /* DGE-530T */
83 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4320) },
84 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x5005) }, /* Belkin */
85 { PCI_DEVICE(PCI_VENDOR_ID_CNET, PCI_DEVICE_ID_CNET_GIGACARD) },
86 { PCI_DEVICE(PCI_VENDOR_ID_LINKSYS, PCI_DEVICE_ID_LINKSYS_EG1064) },
87 { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0015, },
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);
104 /* Avoid conditionals by using array */
105 static const int txqaddr[] = { Q_XA1, Q_XA2 };
106 static const int rxqaddr[] = { Q_R1, Q_R2 };
107 static const u32 rxirqmask[] = { IS_R1_F, IS_R2_F };
108 static const u32 txirqmask[] = { IS_XA1_F, IS_XA2_F };
109 static const u32 irqmask[] = { IS_R1_F|IS_XA1_F, IS_R2_F|IS_XA2_F };
111 static int skge_get_regs_len(struct net_device *dev)
117 * Returns copy of whole control register region
118 * Note: skip RAM address register because accessing it will
121 static void skge_get_regs(struct net_device *dev, struct ethtool_regs *regs,
124 const struct skge_port *skge = netdev_priv(dev);
125 const void __iomem *io = skge->hw->regs;
128 memset(p, 0, regs->len);
129 memcpy_fromio(p, io, B3_RAM_ADDR);
131 memcpy_fromio(p + B3_RI_WTO_R1, io + B3_RI_WTO_R1,
132 regs->len - B3_RI_WTO_R1);
135 /* Wake on Lan only supported on Yukon chips with rev 1 or above */
136 static int wol_supported(const struct skge_hw *hw)
138 return !((hw->chip_id == CHIP_ID_GENESIS ||
139 (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0)));
142 static void skge_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
144 struct skge_port *skge = netdev_priv(dev);
146 wol->supported = wol_supported(skge->hw) ? WAKE_MAGIC : 0;
147 wol->wolopts = skge->wol ? WAKE_MAGIC : 0;
150 static int skge_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
152 struct skge_port *skge = netdev_priv(dev);
153 struct skge_hw *hw = skge->hw;
155 if (wol->wolopts != WAKE_MAGIC && wol->wolopts != 0)
158 if (wol->wolopts == WAKE_MAGIC && !wol_supported(hw))
161 skge->wol = wol->wolopts == WAKE_MAGIC;
164 memcpy_toio(hw->regs + WOL_MAC_ADDR, dev->dev_addr, ETH_ALEN);
166 skge_write16(hw, WOL_CTRL_STAT,
167 WOL_CTL_ENA_PME_ON_MAGIC_PKT |
168 WOL_CTL_ENA_MAGIC_PKT_UNIT);
170 skge_write16(hw, WOL_CTRL_STAT, WOL_CTL_DEFAULT);
175 /* Determine supported/advertised modes based on hardware.
176 * Note: ethtool ADVERTISED_xxx == SUPPORTED_xxx
178 static u32 skge_supported_modes(const struct skge_hw *hw)
183 supported = SUPPORTED_10baseT_Half
184 | SUPPORTED_10baseT_Full
185 | SUPPORTED_100baseT_Half
186 | SUPPORTED_100baseT_Full
187 | SUPPORTED_1000baseT_Half
188 | SUPPORTED_1000baseT_Full
189 | SUPPORTED_Autoneg| SUPPORTED_TP;
191 if (hw->chip_id == CHIP_ID_GENESIS)
192 supported &= ~(SUPPORTED_10baseT_Half
193 | SUPPORTED_10baseT_Full
194 | SUPPORTED_100baseT_Half
195 | SUPPORTED_100baseT_Full);
197 else if (hw->chip_id == CHIP_ID_YUKON)
198 supported &= ~SUPPORTED_1000baseT_Half;
200 supported = SUPPORTED_1000baseT_Full | SUPPORTED_FIBRE
206 static int skge_get_settings(struct net_device *dev,
207 struct ethtool_cmd *ecmd)
209 struct skge_port *skge = netdev_priv(dev);
210 struct skge_hw *hw = skge->hw;
212 ecmd->transceiver = XCVR_INTERNAL;
213 ecmd->supported = skge_supported_modes(hw);
216 ecmd->port = PORT_TP;
217 ecmd->phy_address = hw->phy_addr;
219 ecmd->port = PORT_FIBRE;
221 ecmd->advertising = skge->advertising;
222 ecmd->autoneg = skge->autoneg;
223 ecmd->speed = skge->speed;
224 ecmd->duplex = skge->duplex;
228 static int skge_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
230 struct skge_port *skge = netdev_priv(dev);
231 const struct skge_hw *hw = skge->hw;
232 u32 supported = skge_supported_modes(hw);
234 if (ecmd->autoneg == AUTONEG_ENABLE) {
235 ecmd->advertising = supported;
241 switch (ecmd->speed) {
243 if (ecmd->duplex == DUPLEX_FULL)
244 setting = SUPPORTED_1000baseT_Full;
245 else if (ecmd->duplex == DUPLEX_HALF)
246 setting = SUPPORTED_1000baseT_Half;
251 if (ecmd->duplex == DUPLEX_FULL)
252 setting = SUPPORTED_100baseT_Full;
253 else if (ecmd->duplex == DUPLEX_HALF)
254 setting = SUPPORTED_100baseT_Half;
260 if (ecmd->duplex == DUPLEX_FULL)
261 setting = SUPPORTED_10baseT_Full;
262 else if (ecmd->duplex == DUPLEX_HALF)
263 setting = SUPPORTED_10baseT_Half;
271 if ((setting & supported) == 0)
274 skge->speed = ecmd->speed;
275 skge->duplex = ecmd->duplex;
278 skge->autoneg = ecmd->autoneg;
279 skge->advertising = ecmd->advertising;
281 if (netif_running(dev))
282 skge_phy_reset(skge);
287 static void skge_get_drvinfo(struct net_device *dev,
288 struct ethtool_drvinfo *info)
290 struct skge_port *skge = netdev_priv(dev);
292 strcpy(info->driver, DRV_NAME);
293 strcpy(info->version, DRV_VERSION);
294 strcpy(info->fw_version, "N/A");
295 strcpy(info->bus_info, pci_name(skge->hw->pdev));
298 static const struct skge_stat {
299 char name[ETH_GSTRING_LEN];
303 { "tx_bytes", XM_TXO_OK_HI, GM_TXO_OK_HI },
304 { "rx_bytes", XM_RXO_OK_HI, GM_RXO_OK_HI },
306 { "tx_broadcast", XM_TXF_BC_OK, GM_TXF_BC_OK },
307 { "rx_broadcast", XM_RXF_BC_OK, GM_RXF_BC_OK },
308 { "tx_multicast", XM_TXF_MC_OK, GM_TXF_MC_OK },
309 { "rx_multicast", XM_RXF_MC_OK, GM_RXF_MC_OK },
310 { "tx_unicast", XM_TXF_UC_OK, GM_TXF_UC_OK },
311 { "rx_unicast", XM_RXF_UC_OK, GM_RXF_UC_OK },
312 { "tx_mac_pause", XM_TXF_MPAUSE, GM_TXF_MPAUSE },
313 { "rx_mac_pause", XM_RXF_MPAUSE, GM_RXF_MPAUSE },
315 { "collisions", XM_TXF_SNG_COL, GM_TXF_SNG_COL },
316 { "multi_collisions", XM_TXF_MUL_COL, GM_TXF_MUL_COL },
317 { "aborted", XM_TXF_ABO_COL, GM_TXF_ABO_COL },
318 { "late_collision", XM_TXF_LAT_COL, GM_TXF_LAT_COL },
319 { "fifo_underrun", XM_TXE_FIFO_UR, GM_TXE_FIFO_UR },
320 { "fifo_overflow", XM_RXE_FIFO_OV, GM_RXE_FIFO_OV },
322 { "rx_toolong", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR },
323 { "rx_jabber", XM_RXF_JAB_PKT, GM_RXF_JAB_PKT },
324 { "rx_runt", XM_RXE_RUNT, GM_RXE_FRAG },
325 { "rx_too_long", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR },
326 { "rx_fcs_error", XM_RXF_FCS_ERR, GM_RXF_FCS_ERR },
329 static int skge_get_stats_count(struct net_device *dev)
331 return ARRAY_SIZE(skge_stats);
334 static void skge_get_ethtool_stats(struct net_device *dev,
335 struct ethtool_stats *stats, u64 *data)
337 struct skge_port *skge = netdev_priv(dev);
339 if (skge->hw->chip_id == CHIP_ID_GENESIS)
340 genesis_get_stats(skge, data);
342 yukon_get_stats(skge, data);
345 /* Use hardware MIB variables for critical path statistics and
346 * transmit feedback not reported at interrupt.
347 * Other errors are accounted for in interrupt handler.
349 static struct net_device_stats *skge_get_stats(struct net_device *dev)
351 struct skge_port *skge = netdev_priv(dev);
352 u64 data[ARRAY_SIZE(skge_stats)];
354 if (skge->hw->chip_id == CHIP_ID_GENESIS)
355 genesis_get_stats(skge, data);
357 yukon_get_stats(skge, data);
359 skge->net_stats.tx_bytes = data[0];
360 skge->net_stats.rx_bytes = data[1];
361 skge->net_stats.tx_packets = data[2] + data[4] + data[6];
362 skge->net_stats.rx_packets = data[3] + data[5] + data[7];
363 skge->net_stats.multicast = data[3] + data[5];
364 skge->net_stats.collisions = data[10];
365 skge->net_stats.tx_aborted_errors = data[12];
367 return &skge->net_stats;
370 static void skge_get_strings(struct net_device *dev, u32 stringset, u8 *data)
376 for (i = 0; i < ARRAY_SIZE(skge_stats); i++)
377 memcpy(data + i * ETH_GSTRING_LEN,
378 skge_stats[i].name, ETH_GSTRING_LEN);
383 static void skge_get_ring_param(struct net_device *dev,
384 struct ethtool_ringparam *p)
386 struct skge_port *skge = netdev_priv(dev);
388 p->rx_max_pending = MAX_RX_RING_SIZE;
389 p->tx_max_pending = MAX_TX_RING_SIZE;
390 p->rx_mini_max_pending = 0;
391 p->rx_jumbo_max_pending = 0;
393 p->rx_pending = skge->rx_ring.count;
394 p->tx_pending = skge->tx_ring.count;
395 p->rx_mini_pending = 0;
396 p->rx_jumbo_pending = 0;
399 static int skge_set_ring_param(struct net_device *dev,
400 struct ethtool_ringparam *p)
402 struct skge_port *skge = netdev_priv(dev);
405 if (p->rx_pending == 0 || p->rx_pending > MAX_RX_RING_SIZE ||
406 p->tx_pending < TX_LOW_WATER || p->tx_pending > MAX_TX_RING_SIZE)
409 skge->rx_ring.count = p->rx_pending;
410 skge->tx_ring.count = p->tx_pending;
412 if (netif_running(dev)) {
422 static u32 skge_get_msglevel(struct net_device *netdev)
424 struct skge_port *skge = netdev_priv(netdev);
425 return skge->msg_enable;
428 static void skge_set_msglevel(struct net_device *netdev, u32 value)
430 struct skge_port *skge = netdev_priv(netdev);
431 skge->msg_enable = value;
434 static int skge_nway_reset(struct net_device *dev)
436 struct skge_port *skge = netdev_priv(dev);
438 if (skge->autoneg != AUTONEG_ENABLE || !netif_running(dev))
441 skge_phy_reset(skge);
445 static int skge_set_sg(struct net_device *dev, u32 data)
447 struct skge_port *skge = netdev_priv(dev);
448 struct skge_hw *hw = skge->hw;
450 if (hw->chip_id == CHIP_ID_GENESIS && data)
452 return ethtool_op_set_sg(dev, data);
455 static int skge_set_tx_csum(struct net_device *dev, u32 data)
457 struct skge_port *skge = netdev_priv(dev);
458 struct skge_hw *hw = skge->hw;
460 if (hw->chip_id == CHIP_ID_GENESIS && data)
463 return ethtool_op_set_tx_csum(dev, data);
466 static u32 skge_get_rx_csum(struct net_device *dev)
468 struct skge_port *skge = netdev_priv(dev);
470 return skge->rx_csum;
473 /* Only Yukon supports checksum offload. */
474 static int skge_set_rx_csum(struct net_device *dev, u32 data)
476 struct skge_port *skge = netdev_priv(dev);
478 if (skge->hw->chip_id == CHIP_ID_GENESIS && data)
481 skge->rx_csum = data;
485 static void skge_get_pauseparam(struct net_device *dev,
486 struct ethtool_pauseparam *ecmd)
488 struct skge_port *skge = netdev_priv(dev);
490 ecmd->tx_pause = (skge->flow_control == FLOW_MODE_LOC_SEND)
491 || (skge->flow_control == FLOW_MODE_SYMMETRIC);
492 ecmd->rx_pause = (skge->flow_control == FLOW_MODE_REM_SEND)
493 || (skge->flow_control == FLOW_MODE_SYMMETRIC);
495 ecmd->autoneg = skge->autoneg;
498 static int skge_set_pauseparam(struct net_device *dev,
499 struct ethtool_pauseparam *ecmd)
501 struct skge_port *skge = netdev_priv(dev);
503 skge->autoneg = ecmd->autoneg;
504 if (ecmd->rx_pause && ecmd->tx_pause)
505 skge->flow_control = FLOW_MODE_SYMMETRIC;
506 else if (ecmd->rx_pause && !ecmd->tx_pause)
507 skge->flow_control = FLOW_MODE_REM_SEND;
508 else if (!ecmd->rx_pause && ecmd->tx_pause)
509 skge->flow_control = FLOW_MODE_LOC_SEND;
511 skge->flow_control = FLOW_MODE_NONE;
513 if (netif_running(dev))
514 skge_phy_reset(skge);
518 /* Chip internal frequency for clock calculations */
519 static inline u32 hwkhz(const struct skge_hw *hw)
521 return (hw->chip_id == CHIP_ID_GENESIS) ? 53125 : 78125;
524 /* Chip HZ to microseconds */
525 static inline u32 skge_clk2usec(const struct skge_hw *hw, u32 ticks)
527 return (ticks * 1000) / hwkhz(hw);
530 /* Microseconds to chip HZ */
531 static inline u32 skge_usecs2clk(const struct skge_hw *hw, u32 usec)
533 return hwkhz(hw) * usec / 1000;
536 static int skge_get_coalesce(struct net_device *dev,
537 struct ethtool_coalesce *ecmd)
539 struct skge_port *skge = netdev_priv(dev);
540 struct skge_hw *hw = skge->hw;
541 int port = skge->port;
543 ecmd->rx_coalesce_usecs = 0;
544 ecmd->tx_coalesce_usecs = 0;
546 if (skge_read32(hw, B2_IRQM_CTRL) & TIM_START) {
547 u32 delay = skge_clk2usec(hw, skge_read32(hw, B2_IRQM_INI));
548 u32 msk = skge_read32(hw, B2_IRQM_MSK);
550 if (msk & rxirqmask[port])
551 ecmd->rx_coalesce_usecs = delay;
552 if (msk & txirqmask[port])
553 ecmd->tx_coalesce_usecs = delay;
559 /* Note: interrupt timer is per board, but can turn on/off per port */
560 static int skge_set_coalesce(struct net_device *dev,
561 struct ethtool_coalesce *ecmd)
563 struct skge_port *skge = netdev_priv(dev);
564 struct skge_hw *hw = skge->hw;
565 int port = skge->port;
566 u32 msk = skge_read32(hw, B2_IRQM_MSK);
569 if (ecmd->rx_coalesce_usecs == 0)
570 msk &= ~rxirqmask[port];
571 else if (ecmd->rx_coalesce_usecs < 25 ||
572 ecmd->rx_coalesce_usecs > 33333)
575 msk |= rxirqmask[port];
576 delay = ecmd->rx_coalesce_usecs;
579 if (ecmd->tx_coalesce_usecs == 0)
580 msk &= ~txirqmask[port];
581 else if (ecmd->tx_coalesce_usecs < 25 ||
582 ecmd->tx_coalesce_usecs > 33333)
585 msk |= txirqmask[port];
586 delay = min(delay, ecmd->rx_coalesce_usecs);
589 skge_write32(hw, B2_IRQM_MSK, msk);
591 skge_write32(hw, B2_IRQM_CTRL, TIM_STOP);
593 skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, delay));
594 skge_write32(hw, B2_IRQM_CTRL, TIM_START);
599 enum led_mode { LED_MODE_OFF, LED_MODE_ON, LED_MODE_TST };
600 static void skge_led(struct skge_port *skge, enum led_mode mode)
602 struct skge_hw *hw = skge->hw;
603 int port = skge->port;
605 mutex_lock(&hw->phy_mutex);
606 if (hw->chip_id == CHIP_ID_GENESIS) {
609 if (hw->phy_type == SK_PHY_BCOM)
610 xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_OFF);
612 skge_write32(hw, SK_REG(port, TX_LED_VAL), 0);
613 skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_T_OFF);
615 skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF);
616 skge_write32(hw, SK_REG(port, RX_LED_VAL), 0);
617 skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_T_OFF);
621 skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_ON);
622 skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_LINKSYNC_ON);
624 skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START);
625 skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START);
630 skge_write8(hw, SK_REG(port, RX_LED_TST), LED_T_ON);
631 skge_write32(hw, SK_REG(port, RX_LED_VAL), 100);
632 skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START);
634 if (hw->phy_type == SK_PHY_BCOM)
635 xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_ON);
637 skge_write8(hw, SK_REG(port, TX_LED_TST), LED_T_ON);
638 skge_write32(hw, SK_REG(port, TX_LED_VAL), 100);
639 skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START);
646 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
647 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
648 PHY_M_LED_MO_DUP(MO_LED_OFF) |
649 PHY_M_LED_MO_10(MO_LED_OFF) |
650 PHY_M_LED_MO_100(MO_LED_OFF) |
651 PHY_M_LED_MO_1000(MO_LED_OFF) |
652 PHY_M_LED_MO_RX(MO_LED_OFF));
655 gm_phy_write(hw, port, PHY_MARV_LED_CTRL,
656 PHY_M_LED_PULS_DUR(PULS_170MS) |
657 PHY_M_LED_BLINK_RT(BLINK_84MS) |
661 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
662 PHY_M_LED_MO_RX(MO_LED_OFF) |
663 (skge->speed == SPEED_100 ?
664 PHY_M_LED_MO_100(MO_LED_ON) : 0));
667 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
668 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
669 PHY_M_LED_MO_DUP(MO_LED_ON) |
670 PHY_M_LED_MO_10(MO_LED_ON) |
671 PHY_M_LED_MO_100(MO_LED_ON) |
672 PHY_M_LED_MO_1000(MO_LED_ON) |
673 PHY_M_LED_MO_RX(MO_LED_ON));
676 mutex_unlock(&hw->phy_mutex);
679 /* blink LED's for finding board */
680 static int skge_phys_id(struct net_device *dev, u32 data)
682 struct skge_port *skge = netdev_priv(dev);
684 enum led_mode mode = LED_MODE_TST;
686 if (!data || data > (u32)(MAX_SCHEDULE_TIMEOUT / HZ))
687 ms = jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT / HZ) * 1000;
692 skge_led(skge, mode);
693 mode ^= LED_MODE_TST;
695 if (msleep_interruptible(BLINK_MS))
700 /* back to regular LED state */
701 skge_led(skge, netif_running(dev) ? LED_MODE_ON : LED_MODE_OFF);
706 static const struct ethtool_ops skge_ethtool_ops = {
707 .get_settings = skge_get_settings,
708 .set_settings = skge_set_settings,
709 .get_drvinfo = skge_get_drvinfo,
710 .get_regs_len = skge_get_regs_len,
711 .get_regs = skge_get_regs,
712 .get_wol = skge_get_wol,
713 .set_wol = skge_set_wol,
714 .get_msglevel = skge_get_msglevel,
715 .set_msglevel = skge_set_msglevel,
716 .nway_reset = skge_nway_reset,
717 .get_link = ethtool_op_get_link,
718 .get_ringparam = skge_get_ring_param,
719 .set_ringparam = skge_set_ring_param,
720 .get_pauseparam = skge_get_pauseparam,
721 .set_pauseparam = skge_set_pauseparam,
722 .get_coalesce = skge_get_coalesce,
723 .set_coalesce = skge_set_coalesce,
724 .get_sg = ethtool_op_get_sg,
725 .set_sg = skge_set_sg,
726 .get_tx_csum = ethtool_op_get_tx_csum,
727 .set_tx_csum = skge_set_tx_csum,
728 .get_rx_csum = skge_get_rx_csum,
729 .set_rx_csum = skge_set_rx_csum,
730 .get_strings = skge_get_strings,
731 .phys_id = skge_phys_id,
732 .get_stats_count = skge_get_stats_count,
733 .get_ethtool_stats = skge_get_ethtool_stats,
734 .get_perm_addr = ethtool_op_get_perm_addr,
738 * Allocate ring elements and chain them together
739 * One-to-one association of board descriptors with ring elements
741 static int skge_ring_alloc(struct skge_ring *ring, void *vaddr, u32 base)
743 struct skge_tx_desc *d;
744 struct skge_element *e;
747 ring->start = kcalloc(sizeof(*e), ring->count, GFP_KERNEL);
751 for (i = 0, e = ring->start, d = vaddr; i < ring->count; i++, e++, d++) {
753 if (i == ring->count - 1) {
754 e->next = ring->start;
755 d->next_offset = base;
758 d->next_offset = base + (i+1) * sizeof(*d);
761 ring->to_use = ring->to_clean = ring->start;
766 /* Allocate and setup a new buffer for receiving */
767 static void skge_rx_setup(struct skge_port *skge, struct skge_element *e,
768 struct sk_buff *skb, unsigned int bufsize)
770 struct skge_rx_desc *rd = e->desc;
773 map = pci_map_single(skge->hw->pdev, skb->data, bufsize,
777 rd->dma_hi = map >> 32;
779 rd->csum1_start = ETH_HLEN;
780 rd->csum2_start = ETH_HLEN;
786 rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | bufsize;
787 pci_unmap_addr_set(e, mapaddr, map);
788 pci_unmap_len_set(e, maplen, bufsize);
791 /* Resume receiving using existing skb,
792 * Note: DMA address is not changed by chip.
793 * MTU not changed while receiver active.
795 static inline void skge_rx_reuse(struct skge_element *e, unsigned int size)
797 struct skge_rx_desc *rd = e->desc;
800 rd->csum2_start = ETH_HLEN;
804 rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | size;
808 /* Free all buffers in receive ring, assumes receiver stopped */
809 static void skge_rx_clean(struct skge_port *skge)
811 struct skge_hw *hw = skge->hw;
812 struct skge_ring *ring = &skge->rx_ring;
813 struct skge_element *e;
817 struct skge_rx_desc *rd = e->desc;
820 pci_unmap_single(hw->pdev,
821 pci_unmap_addr(e, mapaddr),
822 pci_unmap_len(e, maplen),
824 dev_kfree_skb(e->skb);
827 } while ((e = e->next) != ring->start);
831 /* Allocate buffers for receive ring
832 * For receive: to_clean is next received frame.
834 static int skge_rx_fill(struct net_device *dev)
836 struct skge_port *skge = netdev_priv(dev);
837 struct skge_ring *ring = &skge->rx_ring;
838 struct skge_element *e;
844 skb = __netdev_alloc_skb(dev, skge->rx_buf_size + NET_IP_ALIGN,
849 skb_reserve(skb, NET_IP_ALIGN);
850 skge_rx_setup(skge, e, skb, skge->rx_buf_size);
851 } while ( (e = e->next) != ring->start);
853 ring->to_clean = ring->start;
857 static void skge_link_up(struct skge_port *skge)
859 skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG),
860 LED_BLK_OFF|LED_SYNC_OFF|LED_ON);
862 netif_carrier_on(skge->netdev);
863 netif_wake_queue(skge->netdev);
865 if (netif_msg_link(skge))
867 "%s: Link is up at %d Mbps, %s duplex, flow control %s\n",
868 skge->netdev->name, skge->speed,
869 skge->duplex == DUPLEX_FULL ? "full" : "half",
870 (skge->flow_control == FLOW_MODE_NONE) ? "none" :
871 (skge->flow_control == FLOW_MODE_LOC_SEND) ? "tx only" :
872 (skge->flow_control == FLOW_MODE_REM_SEND) ? "rx only" :
873 (skge->flow_control == FLOW_MODE_SYMMETRIC) ? "tx and rx" :
877 static void skge_link_down(struct skge_port *skge)
879 skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF);
880 netif_carrier_off(skge->netdev);
881 netif_stop_queue(skge->netdev);
883 if (netif_msg_link(skge))
884 printk(KERN_INFO PFX "%s: Link is down.\n", skge->netdev->name);
888 static void xm_link_down(struct skge_hw *hw, int port)
890 struct net_device *dev = hw->dev[port];
891 struct skge_port *skge = netdev_priv(dev);
894 if (hw->phy_type == SK_PHY_XMAC) {
895 msk = xm_read16(hw, port, XM_IMSK);
896 msk |= XM_IS_INP_ASS | XM_IS_LIPA_RC | XM_IS_RX_PAGE | XM_IS_AND;
897 xm_write16(hw, port, XM_IMSK, msk);
900 cmd = xm_read16(hw, port, XM_MMU_CMD);
901 cmd &= ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX);
902 xm_write16(hw, port, XM_MMU_CMD, cmd);
903 /* dummy read to ensure writing */
904 (void) xm_read16(hw, port, XM_MMU_CMD);
906 if (netif_carrier_ok(dev))
907 skge_link_down(skge);
910 static int __xm_phy_read(struct skge_hw *hw, int port, u16 reg, u16 *val)
914 xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr);
915 *val = xm_read16(hw, port, XM_PHY_DATA);
917 if (hw->phy_type == SK_PHY_XMAC)
920 for (i = 0; i < PHY_RETRIES; i++) {
921 if (xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_RDY)
928 *val = xm_read16(hw, port, XM_PHY_DATA);
933 static u16 xm_phy_read(struct skge_hw *hw, int port, u16 reg)
936 if (__xm_phy_read(hw, port, reg, &v))
937 printk(KERN_WARNING PFX "%s: phy read timed out\n",
938 hw->dev[port]->name);
942 static int xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val)
946 xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr);
947 for (i = 0; i < PHY_RETRIES; i++) {
948 if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY))
955 xm_write16(hw, port, XM_PHY_DATA, val);
956 for (i = 0; i < PHY_RETRIES; i++) {
957 if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY))
964 static void genesis_init(struct skge_hw *hw)
966 /* set blink source counter */
967 skge_write32(hw, B2_BSC_INI, (SK_BLK_DUR * SK_FACT_53) / 100);
968 skge_write8(hw, B2_BSC_CTRL, BSC_START);
970 /* configure mac arbiter */
971 skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR);
973 /* configure mac arbiter timeout values */
974 skge_write8(hw, B3_MA_TOINI_RX1, SK_MAC_TO_53);
975 skge_write8(hw, B3_MA_TOINI_RX2, SK_MAC_TO_53);
976 skge_write8(hw, B3_MA_TOINI_TX1, SK_MAC_TO_53);
977 skge_write8(hw, B3_MA_TOINI_TX2, SK_MAC_TO_53);
979 skge_write8(hw, B3_MA_RCINI_RX1, 0);
980 skge_write8(hw, B3_MA_RCINI_RX2, 0);
981 skge_write8(hw, B3_MA_RCINI_TX1, 0);
982 skge_write8(hw, B3_MA_RCINI_TX2, 0);
984 /* configure packet arbiter timeout */
985 skge_write16(hw, B3_PA_CTRL, PA_RST_CLR);
986 skge_write16(hw, B3_PA_TOINI_RX1, SK_PKT_TO_MAX);
987 skge_write16(hw, B3_PA_TOINI_TX1, SK_PKT_TO_MAX);
988 skge_write16(hw, B3_PA_TOINI_RX2, SK_PKT_TO_MAX);
989 skge_write16(hw, B3_PA_TOINI_TX2, SK_PKT_TO_MAX);
992 static void genesis_reset(struct skge_hw *hw, int port)
994 const u8 zero[8] = { 0 };
996 skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0);
998 /* reset the statistics module */
999 xm_write32(hw, port, XM_GP_PORT, XM_GP_RES_STAT);
1000 xm_write16(hw, port, XM_IMSK, 0xffff); /* disable XMAC IRQs */
1001 xm_write32(hw, port, XM_MODE, 0); /* clear Mode Reg */
1002 xm_write16(hw, port, XM_TX_CMD, 0); /* reset TX CMD Reg */
1003 xm_write16(hw, port, XM_RX_CMD, 0); /* reset RX CMD Reg */
1005 /* disable Broadcom PHY IRQ */
1006 if (hw->phy_type == SK_PHY_BCOM)
1007 xm_write16(hw, port, PHY_BCOM_INT_MASK, 0xffff);
1009 xm_outhash(hw, port, XM_HSM, zero);
1013 /* Convert mode to MII values */
1014 static const u16 phy_pause_map[] = {
1015 [FLOW_MODE_NONE] = 0,
1016 [FLOW_MODE_LOC_SEND] = PHY_AN_PAUSE_ASYM,
1017 [FLOW_MODE_SYMMETRIC] = PHY_AN_PAUSE_CAP,
1018 [FLOW_MODE_REM_SEND] = PHY_AN_PAUSE_CAP | PHY_AN_PAUSE_ASYM,
1022 /* Check status of Broadcom phy link */
1023 static void bcom_check_link(struct skge_hw *hw, int port)
1025 struct net_device *dev = hw->dev[port];
1026 struct skge_port *skge = netdev_priv(dev);
1029 /* read twice because of latch */
1030 (void) xm_phy_read(hw, port, PHY_BCOM_STAT);
1031 status = xm_phy_read(hw, port, PHY_BCOM_STAT);
1033 if ((status & PHY_ST_LSYNC) == 0) {
1034 xm_link_down(hw, port);
1038 if (skge->autoneg == AUTONEG_ENABLE) {
1041 if (!(status & PHY_ST_AN_OVER))
1044 lpa = xm_phy_read(hw, port, PHY_XMAC_AUNE_LP);
1045 if (lpa & PHY_B_AN_RF) {
1046 printk(KERN_NOTICE PFX "%s: remote fault\n",
1051 aux = xm_phy_read(hw, port, PHY_BCOM_AUX_STAT);
1053 /* Check Duplex mismatch */
1054 switch (aux & PHY_B_AS_AN_RES_MSK) {
1055 case PHY_B_RES_1000FD:
1056 skge->duplex = DUPLEX_FULL;
1058 case PHY_B_RES_1000HD:
1059 skge->duplex = DUPLEX_HALF;
1062 printk(KERN_NOTICE PFX "%s: duplex mismatch\n",
1068 /* We are using IEEE 802.3z/D5.0 Table 37-4 */
1069 switch (aux & PHY_B_AS_PAUSE_MSK) {
1070 case PHY_B_AS_PAUSE_MSK:
1071 skge->flow_control = FLOW_MODE_SYMMETRIC;
1074 skge->flow_control = FLOW_MODE_REM_SEND;
1077 skge->flow_control = FLOW_MODE_LOC_SEND;
1080 skge->flow_control = FLOW_MODE_NONE;
1082 skge->speed = SPEED_1000;
1085 if (!netif_carrier_ok(dev))
1086 genesis_link_up(skge);
1089 /* Broadcom 5400 only supports giagabit! SysKonnect did not put an additional
1090 * Phy on for 100 or 10Mbit operation
1092 static void bcom_phy_init(struct skge_port *skge)
1094 struct skge_hw *hw = skge->hw;
1095 int port = skge->port;
1097 u16 id1, r, ext, ctl;
1099 /* magic workaround patterns for Broadcom */
1100 static const struct {
1104 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 },
1105 { 0x17, 0x0013 }, { 0x15, 0x0404 }, { 0x17, 0x8006 },
1106 { 0x15, 0x0132 }, { 0x17, 0x8006 }, { 0x15, 0x0232 },
1107 { 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 },
1109 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1204 },
1110 { 0x17, 0x0013 }, { 0x15, 0x0A04 }, { 0x18, 0x0420 },
1113 /* read Id from external PHY (all have the same address) */
1114 id1 = xm_phy_read(hw, port, PHY_XMAC_ID1);
1116 /* Optimize MDIO transfer by suppressing preamble. */
1117 r = xm_read16(hw, port, XM_MMU_CMD);
1119 xm_write16(hw, port, XM_MMU_CMD,r);
1122 case PHY_BCOM_ID1_C0:
1124 * Workaround BCOM Errata for the C0 type.
1125 * Write magic patterns to reserved registers.
1127 for (i = 0; i < ARRAY_SIZE(C0hack); i++)
1128 xm_phy_write(hw, port,
1129 C0hack[i].reg, C0hack[i].val);
1132 case PHY_BCOM_ID1_A1:
1134 * Workaround BCOM Errata for the A1 type.
1135 * Write magic patterns to reserved registers.
1137 for (i = 0; i < ARRAY_SIZE(A1hack); i++)
1138 xm_phy_write(hw, port,
1139 A1hack[i].reg, A1hack[i].val);
1144 * Workaround BCOM Errata (#10523) for all BCom PHYs.
1145 * Disable Power Management after reset.
1147 r = xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL);
1148 r |= PHY_B_AC_DIS_PM;
1149 xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, r);
1152 xm_read16(hw, port, XM_ISRC);
1154 ext = PHY_B_PEC_EN_LTR; /* enable tx led */
1155 ctl = PHY_CT_SP1000; /* always 1000mbit */
1157 if (skge->autoneg == AUTONEG_ENABLE) {
1159 * Workaround BCOM Errata #1 for the C5 type.
1160 * 1000Base-T Link Acquisition Failure in Slave Mode
1161 * Set Repeater/DTE bit 10 of the 1000Base-T Control Register
1163 u16 adv = PHY_B_1000C_RD;
1164 if (skge->advertising & ADVERTISED_1000baseT_Half)
1165 adv |= PHY_B_1000C_AHD;
1166 if (skge->advertising & ADVERTISED_1000baseT_Full)
1167 adv |= PHY_B_1000C_AFD;
1168 xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, adv);
1170 ctl |= PHY_CT_ANE | PHY_CT_RE_CFG;
1172 if (skge->duplex == DUPLEX_FULL)
1173 ctl |= PHY_CT_DUP_MD;
1174 /* Force to slave */
1175 xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, PHY_B_1000C_MSE);
1178 /* Set autonegotiation pause parameters */
1179 xm_phy_write(hw, port, PHY_BCOM_AUNE_ADV,
1180 phy_pause_map[skge->flow_control] | PHY_AN_CSMA);
1182 /* Handle Jumbo frames */
1183 if (hw->dev[port]->mtu > ETH_DATA_LEN) {
1184 xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL,
1185 PHY_B_AC_TX_TST | PHY_B_AC_LONG_PACK);
1187 ext |= PHY_B_PEC_HIGH_LA;
1191 xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, ext);
1192 xm_phy_write(hw, port, PHY_BCOM_CTRL, ctl);
1194 /* Use link status change interrupt */
1195 xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK);
1198 static void xm_phy_init(struct skge_port *skge)
1200 struct skge_hw *hw = skge->hw;
1201 int port = skge->port;
1204 if (skge->autoneg == AUTONEG_ENABLE) {
1205 if (skge->advertising & ADVERTISED_1000baseT_Half)
1206 ctrl |= PHY_X_AN_HD;
1207 if (skge->advertising & ADVERTISED_1000baseT_Full)
1208 ctrl |= PHY_X_AN_FD;
1210 switch(skge->flow_control) {
1211 case FLOW_MODE_NONE:
1212 ctrl |= PHY_X_P_NO_PAUSE;
1214 case FLOW_MODE_LOC_SEND:
1215 ctrl |= PHY_X_P_ASYM_MD;
1217 case FLOW_MODE_SYMMETRIC:
1218 ctrl |= PHY_X_P_BOTH_MD;
1222 xm_phy_write(hw, port, PHY_XMAC_AUNE_ADV, ctrl);
1224 /* Restart Auto-negotiation */
1225 ctrl = PHY_CT_ANE | PHY_CT_RE_CFG;
1227 /* Set DuplexMode in Config register */
1228 if (skge->duplex == DUPLEX_FULL)
1229 ctrl |= PHY_CT_DUP_MD;
1231 * Do NOT enable Auto-negotiation here. This would hold
1232 * the link down because no IDLEs are transmitted
1236 xm_phy_write(hw, port, PHY_XMAC_CTRL, ctrl);
1238 /* Poll PHY for status changes */
1239 schedule_delayed_work(&skge->link_thread, LINK_HZ);
1242 static void xm_check_link(struct net_device *dev)
1244 struct skge_port *skge = netdev_priv(dev);
1245 struct skge_hw *hw = skge->hw;
1246 int port = skge->port;
1249 /* read twice because of latch */
1250 (void) xm_phy_read(hw, port, PHY_XMAC_STAT);
1251 status = xm_phy_read(hw, port, PHY_XMAC_STAT);
1253 if ((status & PHY_ST_LSYNC) == 0) {
1254 xm_link_down(hw, port);
1258 if (skge->autoneg == AUTONEG_ENABLE) {
1261 if (!(status & PHY_ST_AN_OVER))
1264 lpa = xm_phy_read(hw, port, PHY_XMAC_AUNE_LP);
1265 if (lpa & PHY_B_AN_RF) {
1266 printk(KERN_NOTICE PFX "%s: remote fault\n",
1271 res = xm_phy_read(hw, port, PHY_XMAC_RES_ABI);
1273 /* Check Duplex mismatch */
1274 switch (res & (PHY_X_RS_HD | PHY_X_RS_FD)) {
1276 skge->duplex = DUPLEX_FULL;
1279 skge->duplex = DUPLEX_HALF;
1282 printk(KERN_NOTICE PFX "%s: duplex mismatch\n",
1287 /* We are using IEEE 802.3z/D5.0 Table 37-4 */
1288 if (lpa & PHY_X_P_SYM_MD)
1289 skge->flow_control = FLOW_MODE_SYMMETRIC;
1290 else if ((lpa & PHY_X_RS_PAUSE) == PHY_X_P_ASYM_MD)
1291 skge->flow_control = FLOW_MODE_REM_SEND;
1292 else if ((lpa & PHY_X_RS_PAUSE) == PHY_X_P_BOTH_MD)
1293 skge->flow_control = FLOW_MODE_LOC_SEND;
1295 skge->flow_control = FLOW_MODE_NONE;
1298 skge->speed = SPEED_1000;
1301 if (!netif_carrier_ok(dev))
1302 genesis_link_up(skge);
1305 /* Poll to check for link coming up.
1306 * Since internal PHY is wired to a level triggered pin, can't
1307 * get an interrupt when carrier is detected.
1309 static void xm_link_timer(void *arg)
1311 struct net_device *dev = arg;
1312 struct skge_port *skge = netdev_priv(arg);
1313 struct skge_hw *hw = skge->hw;
1314 int port = skge->port;
1316 if (!netif_running(dev))
1319 if (netif_carrier_ok(dev)) {
1320 xm_read16(hw, port, XM_ISRC);
1321 if (!(xm_read16(hw, port, XM_ISRC) & XM_IS_INP_ASS))
1324 if (xm_read32(hw, port, XM_GP_PORT) & XM_GP_INP_ASS)
1326 xm_read16(hw, port, XM_ISRC);
1327 if (xm_read16(hw, port, XM_ISRC) & XM_IS_INP_ASS)
1331 mutex_lock(&hw->phy_mutex);
1333 mutex_unlock(&hw->phy_mutex);
1336 schedule_delayed_work(&skge->link_thread, LINK_HZ);
1339 static void genesis_mac_init(struct skge_hw *hw, int port)
1341 struct net_device *dev = hw->dev[port];
1342 struct skge_port *skge = netdev_priv(dev);
1343 int jumbo = hw->dev[port]->mtu > ETH_DATA_LEN;
1346 const u8 zero[6] = { 0 };
1348 for (i = 0; i < 10; i++) {
1349 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1),
1351 if (skge_read16(hw, SK_REG(port, TX_MFF_CTRL1)) & MFF_SET_MAC_RST)
1356 printk(KERN_WARNING PFX "%s: genesis reset failed\n", dev->name);
1359 /* Unreset the XMAC. */
1360 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST);
1363 * Perform additional initialization for external PHYs,
1364 * namely for the 1000baseTX cards that use the XMAC's
1367 if (hw->phy_type != SK_PHY_XMAC) {
1368 /* Take external Phy out of reset */
1369 r = skge_read32(hw, B2_GP_IO);
1371 r |= GP_DIR_0|GP_IO_0;
1373 r |= GP_DIR_2|GP_IO_2;
1375 skge_write32(hw, B2_GP_IO, r);
1377 /* Enable GMII interface */
1378 xm_write16(hw, port, XM_HW_CFG, XM_HW_GMII_MD);
1382 switch(hw->phy_type) {
1387 bcom_phy_init(skge);
1388 bcom_check_link(hw, port);
1391 /* Set Station Address */
1392 xm_outaddr(hw, port, XM_SA, dev->dev_addr);
1394 /* We don't use match addresses so clear */
1395 for (i = 1; i < 16; i++)
1396 xm_outaddr(hw, port, XM_EXM(i), zero);
1398 /* Clear MIB counters */
1399 xm_write16(hw, port, XM_STAT_CMD,
1400 XM_SC_CLR_RXC | XM_SC_CLR_TXC);
1401 /* Clear two times according to Errata #3 */
1402 xm_write16(hw, port, XM_STAT_CMD,
1403 XM_SC_CLR_RXC | XM_SC_CLR_TXC);
1405 /* configure Rx High Water Mark (XM_RX_HI_WM) */
1406 xm_write16(hw, port, XM_RX_HI_WM, 1450);
1408 /* We don't need the FCS appended to the packet. */
1409 r = XM_RX_LENERR_OK | XM_RX_STRIP_FCS;
1411 r |= XM_RX_BIG_PK_OK;
1413 if (skge->duplex == DUPLEX_HALF) {
1415 * If in manual half duplex mode the other side might be in
1416 * full duplex mode, so ignore if a carrier extension is not seen
1417 * on frames received
1419 r |= XM_RX_DIS_CEXT;
1421 xm_write16(hw, port, XM_RX_CMD, r);
1424 /* We want short frames padded to 60 bytes. */
1425 xm_write16(hw, port, XM_TX_CMD, XM_TX_AUTO_PAD);
1428 * Bump up the transmit threshold. This helps hold off transmit
1429 * underruns when we're blasting traffic from both ports at once.
1431 xm_write16(hw, port, XM_TX_THR, 512);
1434 * Enable the reception of all error frames. This is is
1435 * a necessary evil due to the design of the XMAC. The
1436 * XMAC's receive FIFO is only 8K in size, however jumbo
1437 * frames can be up to 9000 bytes in length. When bad
1438 * frame filtering is enabled, the XMAC's RX FIFO operates
1439 * in 'store and forward' mode. For this to work, the
1440 * entire frame has to fit into the FIFO, but that means
1441 * that jumbo frames larger than 8192 bytes will be
1442 * truncated. Disabling all bad frame filtering causes
1443 * the RX FIFO to operate in streaming mode, in which
1444 * case the XMAC will start transferring frames out of the
1445 * RX FIFO as soon as the FIFO threshold is reached.
1447 xm_write32(hw, port, XM_MODE, XM_DEF_MODE);
1451 * Initialize the Receive Counter Event Mask (XM_RX_EV_MSK)
1452 * - Enable all bits excepting 'Octets Rx OK Low CntOv'
1453 * and 'Octets Rx OK Hi Cnt Ov'.
1455 xm_write32(hw, port, XM_RX_EV_MSK, XMR_DEF_MSK);
1458 * Initialize the Transmit Counter Event Mask (XM_TX_EV_MSK)
1459 * - Enable all bits excepting 'Octets Tx OK Low CntOv'
1460 * and 'Octets Tx OK Hi Cnt Ov'.
1462 xm_write32(hw, port, XM_TX_EV_MSK, XMT_DEF_MSK);
1464 /* Configure MAC arbiter */
1465 skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR);
1467 /* configure timeout values */
1468 skge_write8(hw, B3_MA_TOINI_RX1, 72);
1469 skge_write8(hw, B3_MA_TOINI_RX2, 72);
1470 skge_write8(hw, B3_MA_TOINI_TX1, 72);
1471 skge_write8(hw, B3_MA_TOINI_TX2, 72);
1473 skge_write8(hw, B3_MA_RCINI_RX1, 0);
1474 skge_write8(hw, B3_MA_RCINI_RX2, 0);
1475 skge_write8(hw, B3_MA_RCINI_TX1, 0);
1476 skge_write8(hw, B3_MA_RCINI_TX2, 0);
1478 /* Configure Rx MAC FIFO */
1479 skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_CLR);
1480 skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_TIM_PAT);
1481 skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_ENA_OP_MD);
1483 /* Configure Tx MAC FIFO */
1484 skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_CLR);
1485 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_TX_CTRL_DEF);
1486 skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_ENA_OP_MD);
1489 /* Enable frame flushing if jumbo frames used */
1490 skge_write16(hw, SK_REG(port,RX_MFF_CTRL1), MFF_ENA_FLUSH);
1492 /* enable timeout timers if normal frames */
1493 skge_write16(hw, B3_PA_CTRL,
1494 (port == 0) ? PA_ENA_TO_TX1 : PA_ENA_TO_TX2);
1498 static void genesis_stop(struct skge_port *skge)
1500 struct skge_hw *hw = skge->hw;
1501 int port = skge->port;
1504 genesis_reset(hw, port);
1506 /* Clear Tx packet arbiter timeout IRQ */
1507 skge_write16(hw, B3_PA_CTRL,
1508 port == 0 ? PA_CLR_TO_TX1 : PA_CLR_TO_TX2);
1511 * If the transfer sticks at the MAC the STOP command will not
1512 * terminate if we don't flush the XMAC's transmit FIFO !
1514 xm_write32(hw, port, XM_MODE,
1515 xm_read32(hw, port, XM_MODE)|XM_MD_FTF);
1519 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_SET_MAC_RST);
1521 /* For external PHYs there must be special handling */
1522 if (hw->phy_type != SK_PHY_XMAC) {
1523 reg = skge_read32(hw, B2_GP_IO);
1531 skge_write32(hw, B2_GP_IO, reg);
1532 skge_read32(hw, B2_GP_IO);
1535 xm_write16(hw, port, XM_MMU_CMD,
1536 xm_read16(hw, port, XM_MMU_CMD)
1537 & ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX));
1539 xm_read16(hw, port, XM_MMU_CMD);
1543 static void genesis_get_stats(struct skge_port *skge, u64 *data)
1545 struct skge_hw *hw = skge->hw;
1546 int port = skge->port;
1548 unsigned long timeout = jiffies + HZ;
1550 xm_write16(hw, port,
1551 XM_STAT_CMD, XM_SC_SNP_TXC | XM_SC_SNP_RXC);
1553 /* wait for update to complete */
1554 while (xm_read16(hw, port, XM_STAT_CMD)
1555 & (XM_SC_SNP_TXC | XM_SC_SNP_RXC)) {
1556 if (time_after(jiffies, timeout))
1561 /* special case for 64 bit octet counter */
1562 data[0] = (u64) xm_read32(hw, port, XM_TXO_OK_HI) << 32
1563 | xm_read32(hw, port, XM_TXO_OK_LO);
1564 data[1] = (u64) xm_read32(hw, port, XM_RXO_OK_HI) << 32
1565 | xm_read32(hw, port, XM_RXO_OK_LO);
1567 for (i = 2; i < ARRAY_SIZE(skge_stats); i++)
1568 data[i] = xm_read32(hw, port, skge_stats[i].xmac_offset);
1571 static void genesis_mac_intr(struct skge_hw *hw, int port)
1573 struct skge_port *skge = netdev_priv(hw->dev[port]);
1574 u16 status = xm_read16(hw, port, XM_ISRC);
1576 if (netif_msg_intr(skge))
1577 printk(KERN_DEBUG PFX "%s: mac interrupt status 0x%x\n",
1578 skge->netdev->name, status);
1580 if (hw->phy_type == SK_PHY_XMAC &&
1581 (status & (XM_IS_INP_ASS | XM_IS_LIPA_RC)))
1582 xm_link_down(hw, port);
1584 if (status & XM_IS_TXF_UR) {
1585 xm_write32(hw, port, XM_MODE, XM_MD_FTF);
1586 ++skge->net_stats.tx_fifo_errors;
1588 if (status & XM_IS_RXF_OV) {
1589 xm_write32(hw, port, XM_MODE, XM_MD_FRF);
1590 ++skge->net_stats.rx_fifo_errors;
1594 static void genesis_link_up(struct skge_port *skge)
1596 struct skge_hw *hw = skge->hw;
1597 int port = skge->port;
1601 cmd = xm_read16(hw, port, XM_MMU_CMD);
1604 * enabling pause frame reception is required for 1000BT
1605 * because the XMAC is not reset if the link is going down
1607 if (skge->flow_control == FLOW_MODE_NONE ||
1608 skge->flow_control == FLOW_MODE_LOC_SEND)
1609 /* Disable Pause Frame Reception */
1610 cmd |= XM_MMU_IGN_PF;
1612 /* Enable Pause Frame Reception */
1613 cmd &= ~XM_MMU_IGN_PF;
1615 xm_write16(hw, port, XM_MMU_CMD, cmd);
1617 mode = xm_read32(hw, port, XM_MODE);
1618 if (skge->flow_control == FLOW_MODE_SYMMETRIC ||
1619 skge->flow_control == FLOW_MODE_LOC_SEND) {
1621 * Configure Pause Frame Generation
1622 * Use internal and external Pause Frame Generation.
1623 * Sending pause frames is edge triggered.
1624 * Send a Pause frame with the maximum pause time if
1625 * internal oder external FIFO full condition occurs.
1626 * Send a zero pause time frame to re-start transmission.
1628 /* XM_PAUSE_DA = '010000C28001' (default) */
1629 /* XM_MAC_PTIME = 0xffff (maximum) */
1630 /* remember this value is defined in big endian (!) */
1631 xm_write16(hw, port, XM_MAC_PTIME, 0xffff);
1633 mode |= XM_PAUSE_MODE;
1634 skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_PAUSE);
1637 * disable pause frame generation is required for 1000BT
1638 * because the XMAC is not reset if the link is going down
1640 /* Disable Pause Mode in Mode Register */
1641 mode &= ~XM_PAUSE_MODE;
1643 skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_DIS_PAUSE);
1646 xm_write32(hw, port, XM_MODE, mode);
1648 if (hw->phy_type != SK_PHY_XMAC)
1649 msk |= XM_IS_INP_ASS; /* disable GP0 interrupt bit */
1651 xm_write16(hw, port, XM_IMSK, msk);
1652 xm_read16(hw, port, XM_ISRC);
1654 /* get MMU Command Reg. */
1655 cmd = xm_read16(hw, port, XM_MMU_CMD);
1656 if (hw->phy_type != SK_PHY_XMAC && skge->duplex == DUPLEX_FULL)
1657 cmd |= XM_MMU_GMII_FD;
1660 * Workaround BCOM Errata (#10523) for all BCom Phys
1661 * Enable Power Management after link up
1663 if (hw->phy_type == SK_PHY_BCOM) {
1664 xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL,
1665 xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL)
1666 & ~PHY_B_AC_DIS_PM);
1667 xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK);
1671 xm_write16(hw, port, XM_MMU_CMD,
1672 cmd | XM_MMU_ENA_RX | XM_MMU_ENA_TX);
1677 static inline void bcom_phy_intr(struct skge_port *skge)
1679 struct skge_hw *hw = skge->hw;
1680 int port = skge->port;
1683 isrc = xm_phy_read(hw, port, PHY_BCOM_INT_STAT);
1684 if (netif_msg_intr(skge))
1685 printk(KERN_DEBUG PFX "%s: phy interrupt status 0x%x\n",
1686 skge->netdev->name, isrc);
1688 if (isrc & PHY_B_IS_PSE)
1689 printk(KERN_ERR PFX "%s: uncorrectable pair swap error\n",
1690 hw->dev[port]->name);
1692 /* Workaround BCom Errata:
1693 * enable and disable loopback mode if "NO HCD" occurs.
1695 if (isrc & PHY_B_IS_NO_HDCL) {
1696 u16 ctrl = xm_phy_read(hw, port, PHY_BCOM_CTRL);
1697 xm_phy_write(hw, port, PHY_BCOM_CTRL,
1698 ctrl | PHY_CT_LOOP);
1699 xm_phy_write(hw, port, PHY_BCOM_CTRL,
1700 ctrl & ~PHY_CT_LOOP);
1703 if (isrc & (PHY_B_IS_AN_PR | PHY_B_IS_LST_CHANGE))
1704 bcom_check_link(hw, port);
1708 static int gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val)
1712 gma_write16(hw, port, GM_SMI_DATA, val);
1713 gma_write16(hw, port, GM_SMI_CTRL,
1714 GM_SMI_CT_PHY_AD(hw->phy_addr) | GM_SMI_CT_REG_AD(reg));
1715 for (i = 0; i < PHY_RETRIES; i++) {
1718 if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY))
1722 printk(KERN_WARNING PFX "%s: phy write timeout\n",
1723 hw->dev[port]->name);
1727 static int __gm_phy_read(struct skge_hw *hw, int port, u16 reg, u16 *val)
1731 gma_write16(hw, port, GM_SMI_CTRL,
1732 GM_SMI_CT_PHY_AD(hw->phy_addr)
1733 | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD);
1735 for (i = 0; i < PHY_RETRIES; i++) {
1737 if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL)
1743 *val = gma_read16(hw, port, GM_SMI_DATA);
1747 static u16 gm_phy_read(struct skge_hw *hw, int port, u16 reg)
1750 if (__gm_phy_read(hw, port, reg, &v))
1751 printk(KERN_WARNING PFX "%s: phy read timeout\n",
1752 hw->dev[port]->name);
1756 /* Marvell Phy Initialization */
1757 static void yukon_init(struct skge_hw *hw, int port)
1759 struct skge_port *skge = netdev_priv(hw->dev[port]);
1760 u16 ctrl, ct1000, adv;
1762 if (skge->autoneg == AUTONEG_ENABLE) {
1763 u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
1765 ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK |
1766 PHY_M_EC_MAC_S_MSK);
1767 ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ);
1769 ectrl |= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1);
1771 gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl);
1774 ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
1775 if (skge->autoneg == AUTONEG_DISABLE)
1776 ctrl &= ~PHY_CT_ANE;
1778 ctrl |= PHY_CT_RESET;
1779 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
1785 if (skge->autoneg == AUTONEG_ENABLE) {
1787 if (skge->advertising & ADVERTISED_1000baseT_Full)
1788 ct1000 |= PHY_M_1000C_AFD;
1789 if (skge->advertising & ADVERTISED_1000baseT_Half)
1790 ct1000 |= PHY_M_1000C_AHD;
1791 if (skge->advertising & ADVERTISED_100baseT_Full)
1792 adv |= PHY_M_AN_100_FD;
1793 if (skge->advertising & ADVERTISED_100baseT_Half)
1794 adv |= PHY_M_AN_100_HD;
1795 if (skge->advertising & ADVERTISED_10baseT_Full)
1796 adv |= PHY_M_AN_10_FD;
1797 if (skge->advertising & ADVERTISED_10baseT_Half)
1798 adv |= PHY_M_AN_10_HD;
1799 } else /* special defines for FIBER (88E1011S only) */
1800 adv |= PHY_M_AN_1000X_AHD | PHY_M_AN_1000X_AFD;
1802 /* Set Flow-control capabilities */
1803 adv |= phy_pause_map[skge->flow_control];
1805 /* Restart Auto-negotiation */
1806 ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG;
1808 /* forced speed/duplex settings */
1809 ct1000 = PHY_M_1000C_MSE;
1811 if (skge->duplex == DUPLEX_FULL)
1812 ctrl |= PHY_CT_DUP_MD;
1814 switch (skge->speed) {
1816 ctrl |= PHY_CT_SP1000;
1819 ctrl |= PHY_CT_SP100;
1823 ctrl |= PHY_CT_RESET;
1826 gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000);
1828 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv);
1829 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
1831 /* Enable phy interrupt on autonegotiation complete (or link up) */
1832 if (skge->autoneg == AUTONEG_ENABLE)
1833 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_MSK);
1835 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK);
1838 static void yukon_reset(struct skge_hw *hw, int port)
1840 gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);/* disable PHY IRQs */
1841 gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */
1842 gma_write16(hw, port, GM_MC_ADDR_H2, 0);
1843 gma_write16(hw, port, GM_MC_ADDR_H3, 0);
1844 gma_write16(hw, port, GM_MC_ADDR_H4, 0);
1846 gma_write16(hw, port, GM_RX_CTRL,
1847 gma_read16(hw, port, GM_RX_CTRL)
1848 | GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
1851 /* Apparently, early versions of Yukon-Lite had wrong chip_id? */
1852 static int is_yukon_lite_a0(struct skge_hw *hw)
1857 if (hw->chip_id != CHIP_ID_YUKON)
1860 reg = skge_read32(hw, B2_FAR);
1861 skge_write8(hw, B2_FAR + 3, 0xff);
1862 ret = (skge_read8(hw, B2_FAR + 3) != 0);
1863 skge_write32(hw, B2_FAR, reg);
1867 static void yukon_mac_init(struct skge_hw *hw, int port)
1869 struct skge_port *skge = netdev_priv(hw->dev[port]);
1872 const u8 *addr = hw->dev[port]->dev_addr;
1874 /* WA code for COMA mode -- set PHY reset */
1875 if (hw->chip_id == CHIP_ID_YUKON_LITE &&
1876 hw->chip_rev >= CHIP_REV_YU_LITE_A3) {
1877 reg = skge_read32(hw, B2_GP_IO);
1878 reg |= GP_DIR_9 | GP_IO_9;
1879 skge_write32(hw, B2_GP_IO, reg);
1883 skge_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
1884 skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
1886 /* WA code for COMA mode -- clear PHY reset */
1887 if (hw->chip_id == CHIP_ID_YUKON_LITE &&
1888 hw->chip_rev >= CHIP_REV_YU_LITE_A3) {
1889 reg = skge_read32(hw, B2_GP_IO);
1892 skge_write32(hw, B2_GP_IO, reg);
1895 /* Set hardware config mode */
1896 reg = GPC_INT_POL_HI | GPC_DIS_FC | GPC_DIS_SLEEP |
1897 GPC_ENA_XC | GPC_ANEG_ADV_ALL_M | GPC_ENA_PAUSE;
1898 reg |= hw->copper ? GPC_HWCFG_GMII_COP : GPC_HWCFG_GMII_FIB;
1900 /* Clear GMC reset */
1901 skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_SET);
1902 skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_CLR);
1903 skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON | GMC_RST_CLR);
1905 if (skge->autoneg == AUTONEG_DISABLE) {
1906 reg = GM_GPCR_AU_ALL_DIS;
1907 gma_write16(hw, port, GM_GP_CTRL,
1908 gma_read16(hw, port, GM_GP_CTRL) | reg);
1910 switch (skge->speed) {
1912 reg &= ~GM_GPCR_SPEED_100;
1913 reg |= GM_GPCR_SPEED_1000;
1916 reg &= ~GM_GPCR_SPEED_1000;
1917 reg |= GM_GPCR_SPEED_100;
1920 reg &= ~(GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100);
1924 if (skge->duplex == DUPLEX_FULL)
1925 reg |= GM_GPCR_DUP_FULL;
1927 reg = GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100 | GM_GPCR_DUP_FULL;
1929 switch (skge->flow_control) {
1930 case FLOW_MODE_NONE:
1931 skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
1932 reg |= GM_GPCR_FC_TX_DIS | GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
1934 case FLOW_MODE_LOC_SEND:
1935 /* disable Rx flow-control */
1936 reg |= GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
1939 gma_write16(hw, port, GM_GP_CTRL, reg);
1940 skge_read16(hw, SK_REG(port, GMAC_IRQ_SRC));
1942 yukon_init(hw, port);
1945 reg = gma_read16(hw, port, GM_PHY_ADDR);
1946 gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR);
1948 for (i = 0; i < GM_MIB_CNT_SIZE; i++)
1949 gma_read16(hw, port, GM_MIB_CNT_BASE + 8*i);
1950 gma_write16(hw, port, GM_PHY_ADDR, reg);
1952 /* transmit control */
1953 gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF));
1955 /* receive control reg: unicast + multicast + no FCS */
1956 gma_write16(hw, port, GM_RX_CTRL,
1957 GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA);
1959 /* transmit flow control */
1960 gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff);
1962 /* transmit parameter */
1963 gma_write16(hw, port, GM_TX_PARAM,
1964 TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) |
1965 TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) |
1966 TX_IPG_JAM_DATA(TX_IPG_JAM_DEF));
1968 /* serial mode register */
1969 reg = GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);
1970 if (hw->dev[port]->mtu > 1500)
1971 reg |= GM_SMOD_JUMBO_ENA;
1973 gma_write16(hw, port, GM_SERIAL_MODE, reg);
1975 /* physical address: used for pause frames */
1976 gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr);
1977 /* virtual address for data */
1978 gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr);
1980 /* enable interrupt mask for counter overflows */
1981 gma_write16(hw, port, GM_TX_IRQ_MSK, 0);
1982 gma_write16(hw, port, GM_RX_IRQ_MSK, 0);
1983 gma_write16(hw, port, GM_TR_IRQ_MSK, 0);
1985 /* Initialize Mac Fifo */
1987 /* Configure Rx MAC FIFO */
1988 skge_write16(hw, SK_REG(port, RX_GMF_FL_MSK), RX_FF_FL_DEF_MSK);
1989 reg = GMF_OPER_ON | GMF_RX_F_FL_ON;
1991 /* disable Rx GMAC FIFO Flush for YUKON-Lite Rev. A0 only */
1992 if (is_yukon_lite_a0(hw))
1993 reg &= ~GMF_RX_F_FL_ON;
1995 skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
1996 skge_write16(hw, SK_REG(port, RX_GMF_CTRL_T), reg);
1998 * because Pause Packet Truncation in GMAC is not working
1999 * we have to increase the Flush Threshold to 64 bytes
2000 * in order to flush pause packets in Rx FIFO on Yukon-1
2002 skge_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF+1);
2004 /* Configure Tx MAC FIFO */
2005 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);
2006 skge_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);
2009 /* Go into power down mode */
2010 static void yukon_suspend(struct skge_hw *hw, int port)
2014 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
2015 ctrl |= PHY_M_PC_POL_R_DIS;
2016 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
2018 ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
2019 ctrl |= PHY_CT_RESET;
2020 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
2022 /* switch IEEE compatible power down mode on */
2023 ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
2024 ctrl |= PHY_CT_PDOWN;
2025 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
2028 static void yukon_stop(struct skge_port *skge)
2030 struct skge_hw *hw = skge->hw;
2031 int port = skge->port;
2033 skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0);
2034 yukon_reset(hw, port);
2036 gma_write16(hw, port, GM_GP_CTRL,
2037 gma_read16(hw, port, GM_GP_CTRL)
2038 & ~(GM_GPCR_TX_ENA|GM_GPCR_RX_ENA));
2039 gma_read16(hw, port, GM_GP_CTRL);
2041 yukon_suspend(hw, port);
2043 /* set GPHY Control reset */
2044 skge_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
2045 skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
2048 static void yukon_get_stats(struct skge_port *skge, u64 *data)
2050 struct skge_hw *hw = skge->hw;
2051 int port = skge->port;
2054 data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32
2055 | gma_read32(hw, port, GM_TXO_OK_LO);
2056 data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32
2057 | gma_read32(hw, port, GM_RXO_OK_LO);
2059 for (i = 2; i < ARRAY_SIZE(skge_stats); i++)
2060 data[i] = gma_read32(hw, port,
2061 skge_stats[i].gma_offset);
2064 static void yukon_mac_intr(struct skge_hw *hw, int port)
2066 struct net_device *dev = hw->dev[port];
2067 struct skge_port *skge = netdev_priv(dev);
2068 u8 status = skge_read8(hw, SK_REG(port, GMAC_IRQ_SRC));
2070 if (netif_msg_intr(skge))
2071 printk(KERN_DEBUG PFX "%s: mac interrupt status 0x%x\n",
2074 if (status & GM_IS_RX_FF_OR) {
2075 ++skge->net_stats.rx_fifo_errors;
2076 skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO);
2079 if (status & GM_IS_TX_FF_UR) {
2080 ++skge->net_stats.tx_fifo_errors;
2081 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU);
2086 static u16 yukon_speed(const struct skge_hw *hw, u16 aux)
2088 switch (aux & PHY_M_PS_SPEED_MSK) {
2089 case PHY_M_PS_SPEED_1000:
2091 case PHY_M_PS_SPEED_100:
2098 static void yukon_link_up(struct skge_port *skge)
2100 struct skge_hw *hw = skge->hw;
2101 int port = skge->port;
2104 /* Enable Transmit FIFO Underrun */
2105 skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK);
2107 reg = gma_read16(hw, port, GM_GP_CTRL);
2108 if (skge->duplex == DUPLEX_FULL || skge->autoneg == AUTONEG_ENABLE)
2109 reg |= GM_GPCR_DUP_FULL;
2112 reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA;
2113 gma_write16(hw, port, GM_GP_CTRL, reg);
2115 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK);
2119 static void yukon_link_down(struct skge_port *skge)
2121 struct skge_hw *hw = skge->hw;
2122 int port = skge->port;
2125 gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);
2127 ctrl = gma_read16(hw, port, GM_GP_CTRL);
2128 ctrl &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA);
2129 gma_write16(hw, port, GM_GP_CTRL, ctrl);
2131 if (skge->flow_control == FLOW_MODE_REM_SEND) {
2132 /* restore Asymmetric Pause bit */
2133 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV,
2134 gm_phy_read(hw, port,
2140 yukon_reset(hw, port);
2141 skge_link_down(skge);
2143 yukon_init(hw, port);
2146 static void yukon_phy_intr(struct skge_port *skge)
2148 struct skge_hw *hw = skge->hw;
2149 int port = skge->port;
2150 const char *reason = NULL;
2151 u16 istatus, phystat;
2153 istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT);
2154 phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT);
2156 if (netif_msg_intr(skge))
2157 printk(KERN_DEBUG PFX "%s: phy interrupt status 0x%x 0x%x\n",
2158 skge->netdev->name, istatus, phystat);
2160 if (istatus & PHY_M_IS_AN_COMPL) {
2161 if (gm_phy_read(hw, port, PHY_MARV_AUNE_LP)
2163 reason = "remote fault";
2167 if (gm_phy_read(hw, port, PHY_MARV_1000T_STAT) & PHY_B_1000S_MSF) {
2168 reason = "master/slave fault";
2172 if (!(phystat & PHY_M_PS_SPDUP_RES)) {
2173 reason = "speed/duplex";
2177 skge->duplex = (phystat & PHY_M_PS_FULL_DUP)
2178 ? DUPLEX_FULL : DUPLEX_HALF;
2179 skge->speed = yukon_speed(hw, phystat);
2181 /* We are using IEEE 802.3z/D5.0 Table 37-4 */
2182 switch (phystat & PHY_M_PS_PAUSE_MSK) {
2183 case PHY_M_PS_PAUSE_MSK:
2184 skge->flow_control = FLOW_MODE_SYMMETRIC;
2186 case PHY_M_PS_RX_P_EN:
2187 skge->flow_control = FLOW_MODE_REM_SEND;
2189 case PHY_M_PS_TX_P_EN:
2190 skge->flow_control = FLOW_MODE_LOC_SEND;
2193 skge->flow_control = FLOW_MODE_NONE;
2196 if (skge->flow_control == FLOW_MODE_NONE ||
2197 (skge->speed < SPEED_1000 && skge->duplex == DUPLEX_HALF))
2198 skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
2200 skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
2201 yukon_link_up(skge);
2205 if (istatus & PHY_M_IS_LSP_CHANGE)
2206 skge->speed = yukon_speed(hw, phystat);
2208 if (istatus & PHY_M_IS_DUP_CHANGE)
2209 skge->duplex = (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
2210 if (istatus & PHY_M_IS_LST_CHANGE) {
2211 if (phystat & PHY_M_PS_LINK_UP)
2212 yukon_link_up(skge);
2214 yukon_link_down(skge);
2218 printk(KERN_ERR PFX "%s: autonegotiation failed (%s)\n",
2219 skge->netdev->name, reason);
2221 /* XXX restart autonegotiation? */
2224 static void skge_phy_reset(struct skge_port *skge)
2226 struct skge_hw *hw = skge->hw;
2227 int port = skge->port;
2229 netif_stop_queue(skge->netdev);
2230 netif_carrier_off(skge->netdev);
2232 mutex_lock(&hw->phy_mutex);
2233 if (hw->chip_id == CHIP_ID_GENESIS) {
2234 genesis_reset(hw, port);
2235 genesis_mac_init(hw, port);
2237 yukon_reset(hw, port);
2238 yukon_init(hw, port);
2240 mutex_unlock(&hw->phy_mutex);
2243 /* Basic MII support */
2244 static int skge_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2246 struct mii_ioctl_data *data = if_mii(ifr);
2247 struct skge_port *skge = netdev_priv(dev);
2248 struct skge_hw *hw = skge->hw;
2249 int err = -EOPNOTSUPP;
2251 if (!netif_running(dev))
2252 return -ENODEV; /* Phy still in reset */
2256 data->phy_id = hw->phy_addr;
2261 mutex_lock(&hw->phy_mutex);
2262 if (hw->chip_id == CHIP_ID_GENESIS)
2263 err = __xm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val);
2265 err = __gm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val);
2266 mutex_unlock(&hw->phy_mutex);
2267 data->val_out = val;
2272 if (!capable(CAP_NET_ADMIN))
2275 mutex_lock(&hw->phy_mutex);
2276 if (hw->chip_id == CHIP_ID_GENESIS)
2277 err = xm_phy_write(hw, skge->port, data->reg_num & 0x1f,
2280 err = gm_phy_write(hw, skge->port, data->reg_num & 0x1f,
2282 mutex_unlock(&hw->phy_mutex);
2288 static void skge_ramset(struct skge_hw *hw, u16 q, u32 start, size_t len)
2294 end = start + len - 1;
2296 skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR);
2297 skge_write32(hw, RB_ADDR(q, RB_START), start);
2298 skge_write32(hw, RB_ADDR(q, RB_WP), start);
2299 skge_write32(hw, RB_ADDR(q, RB_RP), start);
2300 skge_write32(hw, RB_ADDR(q, RB_END), end);
2302 if (q == Q_R1 || q == Q_R2) {
2303 /* Set thresholds on receive queue's */
2304 skge_write32(hw, RB_ADDR(q, RB_RX_UTPP),
2306 skge_write32(hw, RB_ADDR(q, RB_RX_LTPP),
2309 /* Enable store & forward on Tx queue's because
2310 * Tx FIFO is only 4K on Genesis and 1K on Yukon
2312 skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD);
2315 skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD);
2318 /* Setup Bus Memory Interface */
2319 static void skge_qset(struct skge_port *skge, u16 q,
2320 const struct skge_element *e)
2322 struct skge_hw *hw = skge->hw;
2323 u32 watermark = 0x600;
2324 u64 base = skge->dma + (e->desc - skge->mem);
2326 /* optimization to reduce window on 32bit/33mhz */
2327 if ((skge_read16(hw, B0_CTST) & (CS_BUS_CLOCK | CS_BUS_SLOT_SZ)) == 0)
2330 skge_write32(hw, Q_ADDR(q, Q_CSR), CSR_CLR_RESET);
2331 skge_write32(hw, Q_ADDR(q, Q_F), watermark);
2332 skge_write32(hw, Q_ADDR(q, Q_DA_H), (u32)(base >> 32));
2333 skge_write32(hw, Q_ADDR(q, Q_DA_L), (u32)base);
2336 static int skge_up(struct net_device *dev)
2338 struct skge_port *skge = netdev_priv(dev);
2339 struct skge_hw *hw = skge->hw;
2340 int port = skge->port;
2341 u32 chunk, ram_addr;
2342 size_t rx_size, tx_size;
2345 if (netif_msg_ifup(skge))
2346 printk(KERN_INFO PFX "%s: enabling interface\n", dev->name);
2348 if (dev->mtu > RX_BUF_SIZE)
2349 skge->rx_buf_size = dev->mtu + ETH_HLEN;
2351 skge->rx_buf_size = RX_BUF_SIZE;
2354 rx_size = skge->rx_ring.count * sizeof(struct skge_rx_desc);
2355 tx_size = skge->tx_ring.count * sizeof(struct skge_tx_desc);
2356 skge->mem_size = tx_size + rx_size;
2357 skge->mem = pci_alloc_consistent(hw->pdev, skge->mem_size, &skge->dma);
2361 BUG_ON(skge->dma & 7);
2363 if ((u64)skge->dma >> 32 != ((u64) skge->dma + skge->mem_size) >> 32) {
2364 printk(KERN_ERR PFX "pci_alloc_consistent region crosses 4G boundary\n");
2369 memset(skge->mem, 0, skge->mem_size);
2371 err = skge_ring_alloc(&skge->rx_ring, skge->mem, skge->dma);
2375 err = skge_rx_fill(dev);
2379 err = skge_ring_alloc(&skge->tx_ring, skge->mem + rx_size,
2380 skge->dma + rx_size);
2384 /* Initialize MAC */
2385 mutex_lock(&hw->phy_mutex);
2386 if (hw->chip_id == CHIP_ID_GENESIS)
2387 genesis_mac_init(hw, port);
2389 yukon_mac_init(hw, port);
2390 mutex_unlock(&hw->phy_mutex);
2392 /* Configure RAMbuffers */
2393 chunk = hw->ram_size / ((hw->ports + 1)*2);
2394 ram_addr = hw->ram_offset + 2 * chunk * port;
2396 skge_ramset(hw, rxqaddr[port], ram_addr, chunk);
2397 skge_qset(skge, rxqaddr[port], skge->rx_ring.to_clean);
2399 BUG_ON(skge->tx_ring.to_use != skge->tx_ring.to_clean);
2400 skge_ramset(hw, txqaddr[port], ram_addr+chunk, chunk);
2401 skge_qset(skge, txqaddr[port], skge->tx_ring.to_use);
2403 /* Start receiver BMU */
2405 skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_START | CSR_IRQ_CL_F);
2406 skge_led(skge, LED_MODE_ON);
2408 netif_poll_enable(dev);
2412 skge_rx_clean(skge);
2413 kfree(skge->rx_ring.start);
2415 pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma);
2421 static int skge_down(struct net_device *dev)
2423 struct skge_port *skge = netdev_priv(dev);
2424 struct skge_hw *hw = skge->hw;
2425 int port = skge->port;
2427 if (skge->mem == NULL)
2430 if (netif_msg_ifdown(skge))
2431 printk(KERN_INFO PFX "%s: disabling interface\n", dev->name);
2433 netif_stop_queue(dev);
2434 if (hw->chip_id == CHIP_ID_GENESIS && hw->phy_type == SK_PHY_XMAC)
2435 cancel_rearming_delayed_work(&skge->link_thread);
2437 skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF);
2438 if (hw->chip_id == CHIP_ID_GENESIS)
2443 /* Stop transmitter */
2444 skge_write8(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_STOP);
2445 skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL),
2446 RB_RST_SET|RB_DIS_OP_MD);
2449 /* Disable Force Sync bit and Enable Alloc bit */
2450 skge_write8(hw, SK_REG(port, TXA_CTRL),
2451 TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC);
2453 /* Stop Interval Timer and Limit Counter of Tx Arbiter */
2454 skge_write32(hw, SK_REG(port, TXA_ITI_INI), 0L);
2455 skge_write32(hw, SK_REG(port, TXA_LIM_INI), 0L);
2457 /* Reset PCI FIFO */
2458 skge_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_SET_RESET);
2459 skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET);
2461 /* Reset the RAM Buffer async Tx queue */
2462 skge_write8(hw, RB_ADDR(port == 0 ? Q_XA1 : Q_XA2, RB_CTRL), RB_RST_SET);
2464 skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_STOP);
2465 skge_write32(hw, RB_ADDR(port ? Q_R2 : Q_R1, RB_CTRL),
2466 RB_RST_SET|RB_DIS_OP_MD);
2467 skge_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_SET_RESET);
2469 if (hw->chip_id == CHIP_ID_GENESIS) {
2470 skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_SET);
2471 skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_SET);
2473 skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
2474 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET);
2477 skge_led(skge, LED_MODE_OFF);
2479 netif_poll_disable(dev);
2481 skge_rx_clean(skge);
2483 kfree(skge->rx_ring.start);
2484 kfree(skge->tx_ring.start);
2485 pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma);
2490 static inline int skge_avail(const struct skge_ring *ring)
2492 return ((ring->to_clean > ring->to_use) ? 0 : ring->count)
2493 + (ring->to_clean - ring->to_use) - 1;
2496 static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev)
2498 struct skge_port *skge = netdev_priv(dev);
2499 struct skge_hw *hw = skge->hw;
2500 struct skge_element *e;
2501 struct skge_tx_desc *td;
2506 if (skb_padto(skb, ETH_ZLEN))
2507 return NETDEV_TX_OK;
2509 if (unlikely(skge_avail(&skge->tx_ring) < skb_shinfo(skb)->nr_frags + 1))
2510 return NETDEV_TX_BUSY;
2512 e = skge->tx_ring.to_use;
2514 BUG_ON(td->control & BMU_OWN);
2516 len = skb_headlen(skb);
2517 map = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE);
2518 pci_unmap_addr_set(e, mapaddr, map);
2519 pci_unmap_len_set(e, maplen, len);
2522 td->dma_hi = map >> 32;
2524 if (skb->ip_summed == CHECKSUM_PARTIAL) {
2525 int offset = skb->h.raw - skb->data;
2527 /* This seems backwards, but it is what the sk98lin
2528 * does. Looks like hardware is wrong?
2530 if (skb->h.ipiph->protocol == IPPROTO_UDP
2531 && hw->chip_rev == 0 && hw->chip_id == CHIP_ID_YUKON)
2532 control = BMU_TCP_CHECK;
2534 control = BMU_UDP_CHECK;
2537 td->csum_start = offset;
2538 td->csum_write = offset + skb->csum;
2540 control = BMU_CHECK;
2542 if (!skb_shinfo(skb)->nr_frags) /* single buffer i.e. no fragments */
2543 control |= BMU_EOF| BMU_IRQ_EOF;
2545 struct skge_tx_desc *tf = td;
2547 control |= BMU_STFWD;
2548 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
2549 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2551 map = pci_map_page(hw->pdev, frag->page, frag->page_offset,
2552 frag->size, PCI_DMA_TODEVICE);
2557 BUG_ON(tf->control & BMU_OWN);
2560 tf->dma_hi = (u64) map >> 32;
2561 pci_unmap_addr_set(e, mapaddr, map);
2562 pci_unmap_len_set(e, maplen, frag->size);
2564 tf->control = BMU_OWN | BMU_SW | control | frag->size;
2566 tf->control |= BMU_EOF | BMU_IRQ_EOF;
2568 /* Make sure all the descriptors written */
2570 td->control = BMU_OWN | BMU_SW | BMU_STF | control | len;
2573 skge_write8(hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_START);
2575 if (unlikely(netif_msg_tx_queued(skge)))
2576 printk(KERN_DEBUG "%s: tx queued, slot %td, len %d\n",
2577 dev->name, e - skge->tx_ring.start, skb->len);
2579 skge->tx_ring.to_use = e->next;
2580 if (skge_avail(&skge->tx_ring) <= TX_LOW_WATER) {
2581 pr_debug("%s: transmit queue full\n", dev->name);
2582 netif_stop_queue(dev);
2585 dev->trans_start = jiffies;
2587 return NETDEV_TX_OK;
2591 /* Free resources associated with this reing element */
2592 static void skge_tx_free(struct skge_port *skge, struct skge_element *e,
2595 struct pci_dev *pdev = skge->hw->pdev;
2599 /* skb header vs. fragment */
2600 if (control & BMU_STF)
2601 pci_unmap_single(pdev, pci_unmap_addr(e, mapaddr),
2602 pci_unmap_len(e, maplen),
2605 pci_unmap_page(pdev, pci_unmap_addr(e, mapaddr),
2606 pci_unmap_len(e, maplen),
2609 if (control & BMU_EOF) {
2610 if (unlikely(netif_msg_tx_done(skge)))
2611 printk(KERN_DEBUG PFX "%s: tx done slot %td\n",
2612 skge->netdev->name, e - skge->tx_ring.start);
2614 dev_kfree_skb(e->skb);
2619 /* Free all buffers in transmit ring */
2620 static void skge_tx_clean(struct net_device *dev)
2622 struct skge_port *skge = netdev_priv(dev);
2623 struct skge_element *e;
2625 netif_tx_lock_bh(dev);
2626 for (e = skge->tx_ring.to_clean; e != skge->tx_ring.to_use; e = e->next) {
2627 struct skge_tx_desc *td = e->desc;
2628 skge_tx_free(skge, e, td->control);
2632 skge->tx_ring.to_clean = e;
2633 netif_wake_queue(dev);
2634 netif_tx_unlock_bh(dev);
2637 static void skge_tx_timeout(struct net_device *dev)
2639 struct skge_port *skge = netdev_priv(dev);
2641 if (netif_msg_timer(skge))
2642 printk(KERN_DEBUG PFX "%s: tx timeout\n", dev->name);
2644 skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_STOP);
2648 static int skge_change_mtu(struct net_device *dev, int new_mtu)
2652 if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
2655 if (!netif_running(dev)) {
2671 static void genesis_set_multicast(struct net_device *dev)
2673 struct skge_port *skge = netdev_priv(dev);
2674 struct skge_hw *hw = skge->hw;
2675 int port = skge->port;
2676 int i, count = dev->mc_count;
2677 struct dev_mc_list *list = dev->mc_list;
2681 mode = xm_read32(hw, port, XM_MODE);
2682 mode |= XM_MD_ENA_HASH;
2683 if (dev->flags & IFF_PROMISC)
2684 mode |= XM_MD_ENA_PROM;
2686 mode &= ~XM_MD_ENA_PROM;
2688 if (dev->flags & IFF_ALLMULTI)
2689 memset(filter, 0xff, sizeof(filter));
2691 memset(filter, 0, sizeof(filter));
2692 for (i = 0; list && i < count; i++, list = list->next) {
2694 crc = ether_crc_le(ETH_ALEN, list->dmi_addr);
2696 filter[bit/8] |= 1 << (bit%8);
2700 xm_write32(hw, port, XM_MODE, mode);
2701 xm_outhash(hw, port, XM_HSM, filter);
2704 static void yukon_set_multicast(struct net_device *dev)
2706 struct skge_port *skge = netdev_priv(dev);
2707 struct skge_hw *hw = skge->hw;
2708 int port = skge->port;
2709 struct dev_mc_list *list = dev->mc_list;
2713 memset(filter, 0, sizeof(filter));
2715 reg = gma_read16(hw, port, GM_RX_CTRL);
2716 reg |= GM_RXCR_UCF_ENA;
2718 if (dev->flags & IFF_PROMISC) /* promiscuous */
2719 reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
2720 else if (dev->flags & IFF_ALLMULTI) /* all multicast */
2721 memset(filter, 0xff, sizeof(filter));
2722 else if (dev->mc_count == 0) /* no multicast */
2723 reg &= ~GM_RXCR_MCF_ENA;
2726 reg |= GM_RXCR_MCF_ENA;
2728 for (i = 0; list && i < dev->mc_count; i++, list = list->next) {
2729 u32 bit = ether_crc(ETH_ALEN, list->dmi_addr) & 0x3f;
2730 filter[bit/8] |= 1 << (bit%8);
2735 gma_write16(hw, port, GM_MC_ADDR_H1,
2736 (u16)filter[0] | ((u16)filter[1] << 8));
2737 gma_write16(hw, port, GM_MC_ADDR_H2,
2738 (u16)filter[2] | ((u16)filter[3] << 8));
2739 gma_write16(hw, port, GM_MC_ADDR_H3,
2740 (u16)filter[4] | ((u16)filter[5] << 8));
2741 gma_write16(hw, port, GM_MC_ADDR_H4,
2742 (u16)filter[6] | ((u16)filter[7] << 8));
2744 gma_write16(hw, port, GM_RX_CTRL, reg);
2747 static inline u16 phy_length(const struct skge_hw *hw, u32 status)
2749 if (hw->chip_id == CHIP_ID_GENESIS)
2750 return status >> XMR_FS_LEN_SHIFT;
2752 return status >> GMR_FS_LEN_SHIFT;
2755 static inline int bad_phy_status(const struct skge_hw *hw, u32 status)
2757 if (hw->chip_id == CHIP_ID_GENESIS)
2758 return (status & (XMR_FS_ERR | XMR_FS_2L_VLAN)) != 0;
2760 return (status & GMR_FS_ANY_ERR) ||
2761 (status & GMR_FS_RX_OK) == 0;
2765 /* Get receive buffer from descriptor.
2766 * Handles copy of small buffers and reallocation failures
2768 static struct sk_buff *skge_rx_get(struct net_device *dev,
2769 struct skge_element *e,
2770 u32 control, u32 status, u16 csum)
2772 struct skge_port *skge = netdev_priv(dev);
2773 struct sk_buff *skb;
2774 u16 len = control & BMU_BBC;
2776 if (unlikely(netif_msg_rx_status(skge)))
2777 printk(KERN_DEBUG PFX "%s: rx slot %td status 0x%x len %d\n",
2778 dev->name, e - skge->rx_ring.start,
2781 if (len > skge->rx_buf_size)
2784 if ((control & (BMU_EOF|BMU_STF)) != (BMU_STF|BMU_EOF))
2787 if (bad_phy_status(skge->hw, status))
2790 if (phy_length(skge->hw, status) != len)
2793 if (len < RX_COPY_THRESHOLD) {
2794 skb = netdev_alloc_skb(dev, len + 2);
2798 skb_reserve(skb, 2);
2799 pci_dma_sync_single_for_cpu(skge->hw->pdev,
2800 pci_unmap_addr(e, mapaddr),
2801 len, PCI_DMA_FROMDEVICE);
2802 memcpy(skb->data, e->skb->data, len);
2803 pci_dma_sync_single_for_device(skge->hw->pdev,
2804 pci_unmap_addr(e, mapaddr),
2805 len, PCI_DMA_FROMDEVICE);
2806 skge_rx_reuse(e, skge->rx_buf_size);
2808 struct sk_buff *nskb;
2809 nskb = netdev_alloc_skb(dev, skge->rx_buf_size + NET_IP_ALIGN);
2813 skb_reserve(nskb, NET_IP_ALIGN);
2814 pci_unmap_single(skge->hw->pdev,
2815 pci_unmap_addr(e, mapaddr),
2816 pci_unmap_len(e, maplen),
2817 PCI_DMA_FROMDEVICE);
2819 prefetch(skb->data);
2820 skge_rx_setup(skge, e, nskb, skge->rx_buf_size);
2824 if (skge->rx_csum) {
2826 skb->ip_summed = CHECKSUM_COMPLETE;
2829 skb->protocol = eth_type_trans(skb, dev);
2834 if (netif_msg_rx_err(skge))
2835 printk(KERN_DEBUG PFX "%s: rx err, slot %td control 0x%x status 0x%x\n",
2836 dev->name, e - skge->rx_ring.start,
2839 if (skge->hw->chip_id == CHIP_ID_GENESIS) {
2840 if (status & (XMR_FS_RUNT|XMR_FS_LNG_ERR))
2841 skge->net_stats.rx_length_errors++;
2842 if (status & XMR_FS_FRA_ERR)
2843 skge->net_stats.rx_frame_errors++;
2844 if (status & XMR_FS_FCS_ERR)
2845 skge->net_stats.rx_crc_errors++;
2847 if (status & (GMR_FS_LONG_ERR|GMR_FS_UN_SIZE))
2848 skge->net_stats.rx_length_errors++;
2849 if (status & GMR_FS_FRAGMENT)
2850 skge->net_stats.rx_frame_errors++;
2851 if (status & GMR_FS_CRC_ERR)
2852 skge->net_stats.rx_crc_errors++;
2856 skge_rx_reuse(e, skge->rx_buf_size);
2860 /* Free all buffers in Tx ring which are no longer owned by device */
2861 static void skge_tx_done(struct net_device *dev)
2863 struct skge_port *skge = netdev_priv(dev);
2864 struct skge_ring *ring = &skge->tx_ring;
2865 struct skge_element *e;
2867 skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F);
2870 for (e = ring->to_clean; e != ring->to_use; e = e->next) {
2871 struct skge_tx_desc *td = e->desc;
2873 if (td->control & BMU_OWN)
2876 skge_tx_free(skge, e, td->control);
2878 skge->tx_ring.to_clean = e;
2880 if (skge_avail(&skge->tx_ring) > TX_LOW_WATER)
2881 netif_wake_queue(dev);
2883 netif_tx_unlock(dev);
2886 static int skge_poll(struct net_device *dev, int *budget)
2888 struct skge_port *skge = netdev_priv(dev);
2889 struct skge_hw *hw = skge->hw;
2890 struct skge_ring *ring = &skge->rx_ring;
2891 struct skge_element *e;
2892 int to_do = min(dev->quota, *budget);
2897 skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F);
2899 for (e = ring->to_clean; prefetch(e->next), work_done < to_do; e = e->next) {
2900 struct skge_rx_desc *rd = e->desc;
2901 struct sk_buff *skb;
2905 control = rd->control;
2906 if (control & BMU_OWN)
2909 skb = skge_rx_get(dev, e, control, rd->status, rd->csum2);
2911 dev->last_rx = jiffies;
2912 netif_receive_skb(skb);
2919 /* restart receiver */
2921 skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR), CSR_START);
2923 *budget -= work_done;
2924 dev->quota -= work_done;
2926 if (work_done >= to_do)
2927 return 1; /* not done */
2929 spin_lock_irq(&hw->hw_lock);
2930 __netif_rx_complete(dev);
2931 hw->intr_mask |= irqmask[skge->port];
2932 skge_write32(hw, B0_IMSK, hw->intr_mask);
2933 skge_read32(hw, B0_IMSK);
2934 spin_unlock_irq(&hw->hw_lock);
2939 /* Parity errors seem to happen when Genesis is connected to a switch
2940 * with no other ports present. Heartbeat error??
2942 static void skge_mac_parity(struct skge_hw *hw, int port)
2944 struct net_device *dev = hw->dev[port];
2947 struct skge_port *skge = netdev_priv(dev);
2948 ++skge->net_stats.tx_heartbeat_errors;
2951 if (hw->chip_id == CHIP_ID_GENESIS)
2952 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1),
2955 /* HW-Bug #8: cleared by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE */
2956 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T),
2957 (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0)
2958 ? GMF_CLI_TX_FC : GMF_CLI_TX_PE);
2961 static void skge_mac_intr(struct skge_hw *hw, int port)
2963 if (hw->chip_id == CHIP_ID_GENESIS)
2964 genesis_mac_intr(hw, port);
2966 yukon_mac_intr(hw, port);
2969 /* Handle device specific framing and timeout interrupts */
2970 static void skge_error_irq(struct skge_hw *hw)
2972 u32 hwstatus = skge_read32(hw, B0_HWE_ISRC);
2974 if (hw->chip_id == CHIP_ID_GENESIS) {
2975 /* clear xmac errors */
2976 if (hwstatus & (IS_NO_STAT_M1|IS_NO_TIST_M1))
2977 skge_write16(hw, RX_MFF_CTRL1, MFF_CLR_INSTAT);
2978 if (hwstatus & (IS_NO_STAT_M2|IS_NO_TIST_M2))
2979 skge_write16(hw, RX_MFF_CTRL2, MFF_CLR_INSTAT);
2981 /* Timestamp (unused) overflow */
2982 if (hwstatus & IS_IRQ_TIST_OV)
2983 skge_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
2986 if (hwstatus & IS_RAM_RD_PAR) {
2987 printk(KERN_ERR PFX "Ram read data parity error\n");
2988 skge_write16(hw, B3_RI_CTRL, RI_CLR_RD_PERR);
2991 if (hwstatus & IS_RAM_WR_PAR) {
2992 printk(KERN_ERR PFX "Ram write data parity error\n");
2993 skge_write16(hw, B3_RI_CTRL, RI_CLR_WR_PERR);
2996 if (hwstatus & IS_M1_PAR_ERR)
2997 skge_mac_parity(hw, 0);
2999 if (hwstatus & IS_M2_PAR_ERR)
3000 skge_mac_parity(hw, 1);
3002 if (hwstatus & IS_R1_PAR_ERR) {
3003 printk(KERN_ERR PFX "%s: receive queue parity error\n",
3005 skge_write32(hw, B0_R1_CSR, CSR_IRQ_CL_P);
3008 if (hwstatus & IS_R2_PAR_ERR) {
3009 printk(KERN_ERR PFX "%s: receive queue parity error\n",
3011 skge_write32(hw, B0_R2_CSR, CSR_IRQ_CL_P);
3014 if (hwstatus & (IS_IRQ_MST_ERR|IS_IRQ_STAT)) {
3015 u16 pci_status, pci_cmd;
3017 pci_read_config_word(hw->pdev, PCI_COMMAND, &pci_cmd);
3018 pci_read_config_word(hw->pdev, PCI_STATUS, &pci_status);
3020 printk(KERN_ERR PFX "%s: PCI error cmd=%#x status=%#x\n",
3021 pci_name(hw->pdev), pci_cmd, pci_status);
3023 /* Write the error bits back to clear them. */
3024 pci_status &= PCI_STATUS_ERROR_BITS;
3025 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
3026 pci_write_config_word(hw->pdev, PCI_COMMAND,
3027 pci_cmd | PCI_COMMAND_SERR | PCI_COMMAND_PARITY);
3028 pci_write_config_word(hw->pdev, PCI_STATUS, pci_status);
3029 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
3031 /* if error still set then just ignore it */
3032 hwstatus = skge_read32(hw, B0_HWE_ISRC);
3033 if (hwstatus & IS_IRQ_STAT) {
3034 printk(KERN_INFO PFX "unable to clear error (so ignoring them)\n");
3035 hw->intr_mask &= ~IS_HW_ERR;
3041 * Interrupt from PHY are handled in work queue
3042 * because accessing phy registers requires spin wait which might
3043 * cause excess interrupt latency.
3045 static void skge_extirq(void *arg)
3047 struct skge_hw *hw = arg;
3050 mutex_lock(&hw->phy_mutex);
3051 for (port = 0; port < hw->ports; port++) {
3052 struct net_device *dev = hw->dev[port];
3053 struct skge_port *skge = netdev_priv(dev);
3055 if (netif_running(dev)) {
3056 if (hw->chip_id != CHIP_ID_GENESIS)
3057 yukon_phy_intr(skge);
3058 else if (hw->phy_type == SK_PHY_BCOM)
3059 bcom_phy_intr(skge);
3062 mutex_unlock(&hw->phy_mutex);
3064 spin_lock_irq(&hw->hw_lock);
3065 hw->intr_mask |= IS_EXT_REG;
3066 skge_write32(hw, B0_IMSK, hw->intr_mask);
3067 skge_read32(hw, B0_IMSK);
3068 spin_unlock_irq(&hw->hw_lock);
3071 static irqreturn_t skge_intr(int irq, void *dev_id)
3073 struct skge_hw *hw = dev_id;
3077 spin_lock(&hw->hw_lock);
3078 /* Reading this register masks IRQ */
3079 status = skge_read32(hw, B0_SP_ISRC);
3080 if (status == 0 || status == ~0)
3084 status &= hw->intr_mask;
3085 if (status & IS_EXT_REG) {
3086 hw->intr_mask &= ~IS_EXT_REG;
3087 schedule_work(&hw->phy_work);
3090 if (status & (IS_XA1_F|IS_R1_F)) {
3091 hw->intr_mask &= ~(IS_XA1_F|IS_R1_F);
3092 netif_rx_schedule(hw->dev[0]);
3095 if (status & IS_PA_TO_TX1)
3096 skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX1);
3098 if (status & IS_PA_TO_RX1) {
3099 struct skge_port *skge = netdev_priv(hw->dev[0]);
3101 ++skge->net_stats.rx_over_errors;
3102 skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX1);
3106 if (status & IS_MAC1)
3107 skge_mac_intr(hw, 0);
3110 if (status & (IS_XA2_F|IS_R2_F)) {
3111 hw->intr_mask &= ~(IS_XA2_F|IS_R2_F);
3112 netif_rx_schedule(hw->dev[1]);
3115 if (status & IS_PA_TO_RX2) {
3116 struct skge_port *skge = netdev_priv(hw->dev[1]);
3117 ++skge->net_stats.rx_over_errors;
3118 skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX2);
3121 if (status & IS_PA_TO_TX2)
3122 skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX2);
3124 if (status & IS_MAC2)
3125 skge_mac_intr(hw, 1);
3128 if (status & IS_HW_ERR)
3131 skge_write32(hw, B0_IMSK, hw->intr_mask);
3132 skge_read32(hw, B0_IMSK);
3134 spin_unlock(&hw->hw_lock);
3136 return IRQ_RETVAL(handled);
3139 #ifdef CONFIG_NET_POLL_CONTROLLER
3140 static void skge_netpoll(struct net_device *dev)
3142 struct skge_port *skge = netdev_priv(dev);
3144 disable_irq(dev->irq);
3145 skge_intr(dev->irq, skge->hw);
3146 enable_irq(dev->irq);
3150 static int skge_set_mac_address(struct net_device *dev, void *p)
3152 struct skge_port *skge = netdev_priv(dev);
3153 struct skge_hw *hw = skge->hw;
3154 unsigned port = skge->port;
3155 const struct sockaddr *addr = p;
3157 if (!is_valid_ether_addr(addr->sa_data))
3158 return -EADDRNOTAVAIL;
3160 mutex_lock(&hw->phy_mutex);
3161 memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
3162 memcpy_toio(hw->regs + B2_MAC_1 + port*8,
3163 dev->dev_addr, ETH_ALEN);
3164 memcpy_toio(hw->regs + B2_MAC_2 + port*8,
3165 dev->dev_addr, ETH_ALEN);
3167 if (hw->chip_id == CHIP_ID_GENESIS)
3168 xm_outaddr(hw, port, XM_SA, dev->dev_addr);
3170 gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr);
3171 gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr);
3173 mutex_unlock(&hw->phy_mutex);
3178 static const struct {
3182 { CHIP_ID_GENESIS, "Genesis" },
3183 { CHIP_ID_YUKON, "Yukon" },
3184 { CHIP_ID_YUKON_LITE, "Yukon-Lite"},
3185 { CHIP_ID_YUKON_LP, "Yukon-LP"},
3188 static const char *skge_board_name(const struct skge_hw *hw)
3191 static char buf[16];
3193 for (i = 0; i < ARRAY_SIZE(skge_chips); i++)
3194 if (skge_chips[i].id == hw->chip_id)
3195 return skge_chips[i].name;
3197 snprintf(buf, sizeof buf, "chipid 0x%x", hw->chip_id);
3203 * Setup the board data structure, but don't bring up
3206 static int skge_reset(struct skge_hw *hw)
3209 u16 ctst, pci_status;
3210 u8 t8, mac_cfg, pmd_type;
3213 ctst = skge_read16(hw, B0_CTST);
3216 skge_write8(hw, B0_CTST, CS_RST_SET);
3217 skge_write8(hw, B0_CTST, CS_RST_CLR);
3219 /* clear PCI errors, if any */
3220 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
3221 skge_write8(hw, B2_TST_CTRL2, 0);
3223 pci_read_config_word(hw->pdev, PCI_STATUS, &pci_status);
3224 pci_write_config_word(hw->pdev, PCI_STATUS,
3225 pci_status | PCI_STATUS_ERROR_BITS);
3226 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
3227 skge_write8(hw, B0_CTST, CS_MRST_CLR);
3229 /* restore CLK_RUN bits (for Yukon-Lite) */
3230 skge_write16(hw, B0_CTST,
3231 ctst & (CS_CLK_RUN_HOT|CS_CLK_RUN_RST|CS_CLK_RUN_ENA));
3233 hw->chip_id = skge_read8(hw, B2_CHIP_ID);
3234 hw->phy_type = skge_read8(hw, B2_E_1) & 0xf;
3235 pmd_type = skge_read8(hw, B2_PMD_TYP);
3236 hw->copper = (pmd_type == 'T' || pmd_type == '1');
3238 switch (hw->chip_id) {
3239 case CHIP_ID_GENESIS:
3240 switch (hw->phy_type) {
3242 hw->phy_addr = PHY_ADDR_XMAC;
3245 hw->phy_addr = PHY_ADDR_BCOM;
3248 printk(KERN_ERR PFX "%s: unsupported phy type 0x%x\n",
3249 pci_name(hw->pdev), hw->phy_type);
3255 case CHIP_ID_YUKON_LITE:
3256 case CHIP_ID_YUKON_LP:
3257 if (hw->phy_type < SK_PHY_MARV_COPPER && pmd_type != 'S')
3260 hw->phy_addr = PHY_ADDR_MARV;
3264 printk(KERN_ERR PFX "%s: unsupported chip type 0x%x\n",
3265 pci_name(hw->pdev), hw->chip_id);
3269 mac_cfg = skge_read8(hw, B2_MAC_CFG);
3270 hw->ports = (mac_cfg & CFG_SNG_MAC) ? 1 : 2;
3271 hw->chip_rev = (mac_cfg & CFG_CHIP_R_MSK) >> 4;
3273 /* read the adapters RAM size */
3274 t8 = skge_read8(hw, B2_E_0);
3275 if (hw->chip_id == CHIP_ID_GENESIS) {
3277 /* special case: 4 x 64k x 36, offset = 0x80000 */
3278 hw->ram_size = 0x100000;
3279 hw->ram_offset = 0x80000;
3281 hw->ram_size = t8 * 512;
3284 hw->ram_size = 0x20000;
3286 hw->ram_size = t8 * 4096;
3288 hw->intr_mask = IS_HW_ERR | IS_PORT_1;
3290 hw->intr_mask |= IS_PORT_2;
3292 if (!(hw->chip_id == CHIP_ID_GENESIS && hw->phy_type == SK_PHY_XMAC))
3293 hw->intr_mask |= IS_EXT_REG;
3295 if (hw->chip_id == CHIP_ID_GENESIS)
3298 /* switch power to VCC (WA for VAUX problem) */
3299 skge_write8(hw, B0_POWER_CTRL,
3300 PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON);
3302 /* avoid boards with stuck Hardware error bits */
3303 if ((skge_read32(hw, B0_ISRC) & IS_HW_ERR) &&
3304 (skge_read32(hw, B0_HWE_ISRC) & IS_IRQ_SENSOR)) {
3305 printk(KERN_WARNING PFX "stuck hardware sensor bit\n");
3306 hw->intr_mask &= ~IS_HW_ERR;
3309 /* Clear PHY COMA */
3310 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
3311 pci_read_config_dword(hw->pdev, PCI_DEV_REG1, ®);
3312 reg &= ~PCI_PHY_COMA;
3313 pci_write_config_dword(hw->pdev, PCI_DEV_REG1, reg);
3314 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
3317 for (i = 0; i < hw->ports; i++) {
3318 skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET);
3319 skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR);
3323 /* turn off hardware timer (unused) */
3324 skge_write8(hw, B2_TI_CTRL, TIM_STOP);
3325 skge_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ);
3326 skge_write8(hw, B0_LED, LED_STAT_ON);
3328 /* enable the Tx Arbiters */
3329 for (i = 0; i < hw->ports; i++)
3330 skge_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB);
3332 /* Initialize ram interface */
3333 skge_write16(hw, B3_RI_CTRL, RI_RST_CLR);
3335 skge_write8(hw, B3_RI_WTO_R1, SK_RI_TO_53);
3336 skge_write8(hw, B3_RI_WTO_XA1, SK_RI_TO_53);
3337 skge_write8(hw, B3_RI_WTO_XS1, SK_RI_TO_53);
3338 skge_write8(hw, B3_RI_RTO_R1, SK_RI_TO_53);
3339 skge_write8(hw, B3_RI_RTO_XA1, SK_RI_TO_53);
3340 skge_write8(hw, B3_RI_RTO_XS1, SK_RI_TO_53);
3341 skge_write8(hw, B3_RI_WTO_R2, SK_RI_TO_53);
3342 skge_write8(hw, B3_RI_WTO_XA2, SK_RI_TO_53);
3343 skge_write8(hw, B3_RI_WTO_XS2, SK_RI_TO_53);
3344 skge_write8(hw, B3_RI_RTO_R2, SK_RI_TO_53);
3345 skge_write8(hw, B3_RI_RTO_XA2, SK_RI_TO_53);
3346 skge_write8(hw, B3_RI_RTO_XS2, SK_RI_TO_53);
3348 skge_write32(hw, B0_HWE_IMSK, IS_ERR_MSK);
3350 /* Set interrupt moderation for Transmit only
3351 * Receive interrupts avoided by NAPI
3353 skge_write32(hw, B2_IRQM_MSK, IS_XA1_F|IS_XA2_F);
3354 skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, 100));
3355 skge_write32(hw, B2_IRQM_CTRL, TIM_START);
3357 skge_write32(hw, B0_IMSK, hw->intr_mask);
3359 mutex_lock(&hw->phy_mutex);
3360 for (i = 0; i < hw->ports; i++) {
3361 if (hw->chip_id == CHIP_ID_GENESIS)
3362 genesis_reset(hw, i);
3366 mutex_unlock(&hw->phy_mutex);
3371 /* Initialize network device */
3372 static struct net_device *skge_devinit(struct skge_hw *hw, int port,
3375 struct skge_port *skge;
3376 struct net_device *dev = alloc_etherdev(sizeof(*skge));
3379 printk(KERN_ERR "skge etherdev alloc failed");
3383 SET_MODULE_OWNER(dev);
3384 SET_NETDEV_DEV(dev, &hw->pdev->dev);
3385 dev->open = skge_up;
3386 dev->stop = skge_down;
3387 dev->do_ioctl = skge_ioctl;
3388 dev->hard_start_xmit = skge_xmit_frame;
3389 dev->get_stats = skge_get_stats;
3390 if (hw->chip_id == CHIP_ID_GENESIS)
3391 dev->set_multicast_list = genesis_set_multicast;
3393 dev->set_multicast_list = yukon_set_multicast;
3395 dev->set_mac_address = skge_set_mac_address;
3396 dev->change_mtu = skge_change_mtu;
3397 SET_ETHTOOL_OPS(dev, &skge_ethtool_ops);
3398 dev->tx_timeout = skge_tx_timeout;
3399 dev->watchdog_timeo = TX_WATCHDOG;
3400 dev->poll = skge_poll;
3401 dev->weight = NAPI_WEIGHT;
3402 #ifdef CONFIG_NET_POLL_CONTROLLER
3403 dev->poll_controller = skge_netpoll;
3405 dev->irq = hw->pdev->irq;
3408 dev->features |= NETIF_F_HIGHDMA;
3410 skge = netdev_priv(dev);
3413 skge->msg_enable = netif_msg_init(debug, default_msg);
3414 skge->tx_ring.count = DEFAULT_TX_RING_SIZE;
3415 skge->rx_ring.count = DEFAULT_RX_RING_SIZE;
3417 /* Auto speed and flow control */
3418 skge->autoneg = AUTONEG_ENABLE;
3419 skge->flow_control = FLOW_MODE_SYMMETRIC;
3422 skge->advertising = skge_supported_modes(hw);
3424 hw->dev[port] = dev;
3428 /* Only used for Genesis XMAC */
3429 INIT_WORK(&skge->link_thread, xm_link_timer, dev);
3431 if (hw->chip_id != CHIP_ID_GENESIS) {
3432 dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
3436 /* read the mac address */
3437 memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port*8, ETH_ALEN);
3438 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
3440 /* device is off until link detection */
3441 netif_carrier_off(dev);
3442 netif_stop_queue(dev);
3447 static void __devinit skge_show_addr(struct net_device *dev)
3449 const struct skge_port *skge = netdev_priv(dev);
3451 if (netif_msg_probe(skge))
3452 printk(KERN_INFO PFX "%s: addr %02x:%02x:%02x:%02x:%02x:%02x\n",
3454 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
3455 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
3458 static int __devinit skge_probe(struct pci_dev *pdev,
3459 const struct pci_device_id *ent)
3461 struct net_device *dev, *dev1;
3463 int err, using_dac = 0;
3465 err = pci_enable_device(pdev);
3467 printk(KERN_ERR PFX "%s cannot enable PCI device\n",
3472 err = pci_request_regions(pdev, DRV_NAME);
3474 printk(KERN_ERR PFX "%s cannot obtain PCI resources\n",
3476 goto err_out_disable_pdev;
3479 pci_set_master(pdev);
3481 if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
3483 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
3484 } else if (!(err = pci_set_dma_mask(pdev, DMA_32BIT_MASK))) {
3486 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
3490 printk(KERN_ERR PFX "%s no usable DMA configuration\n",
3492 goto err_out_free_regions;
3496 /* byte swap descriptors in hardware */
3500 pci_read_config_dword(pdev, PCI_DEV_REG2, ®);
3501 reg |= PCI_REV_DESC;
3502 pci_write_config_dword(pdev, PCI_DEV_REG2, reg);
3507 hw = kzalloc(sizeof(*hw), GFP_KERNEL);
3509 printk(KERN_ERR PFX "%s: cannot allocate hardware struct\n",
3511 goto err_out_free_regions;
3515 mutex_init(&hw->phy_mutex);
3516 INIT_WORK(&hw->phy_work, skge_extirq, hw);
3517 spin_lock_init(&hw->hw_lock);
3519 hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000);
3521 printk(KERN_ERR PFX "%s: cannot map device registers\n",
3523 goto err_out_free_hw;
3526 err = skge_reset(hw);
3528 goto err_out_iounmap;
3530 printk(KERN_INFO PFX DRV_VERSION " addr 0x%llx irq %d chip %s rev %d\n",
3531 (unsigned long long)pci_resource_start(pdev, 0), pdev->irq,
3532 skge_board_name(hw), hw->chip_rev);
3534 dev = skge_devinit(hw, 0, using_dac);
3536 goto err_out_led_off;
3538 if (!is_valid_ether_addr(dev->dev_addr)) {
3539 printk(KERN_ERR PFX "%s: bad (zero?) ethernet address in rom\n",
3542 goto err_out_free_netdev;
3545 err = register_netdev(dev);
3547 printk(KERN_ERR PFX "%s: cannot register net device\n",
3549 goto err_out_free_netdev;
3552 err = request_irq(pdev->irq, skge_intr, IRQF_SHARED, dev->name, hw);
3554 printk(KERN_ERR PFX "%s: cannot assign irq %d\n",
3555 dev->name, pdev->irq);
3556 goto err_out_unregister;
3558 skge_show_addr(dev);
3560 if (hw->ports > 1 && (dev1 = skge_devinit(hw, 1, using_dac))) {
3561 if (register_netdev(dev1) == 0)
3562 skge_show_addr(dev1);
3564 /* Failure to register second port need not be fatal */
3565 printk(KERN_WARNING PFX "register of second port failed\n");
3570 pci_set_drvdata(pdev, hw);
3575 unregister_netdev(dev);
3576 err_out_free_netdev:
3579 skge_write16(hw, B0_LED, LED_STAT_OFF);
3584 err_out_free_regions:
3585 pci_release_regions(pdev);
3586 err_out_disable_pdev:
3587 pci_disable_device(pdev);
3588 pci_set_drvdata(pdev, NULL);
3593 static void __devexit skge_remove(struct pci_dev *pdev)
3595 struct skge_hw *hw = pci_get_drvdata(pdev);
3596 struct net_device *dev0, *dev1;
3601 if ((dev1 = hw->dev[1]))
3602 unregister_netdev(dev1);
3604 unregister_netdev(dev0);
3606 spin_lock_irq(&hw->hw_lock);
3608 skge_write32(hw, B0_IMSK, 0);
3609 skge_read32(hw, B0_IMSK);
3610 spin_unlock_irq(&hw->hw_lock);
3612 skge_write16(hw, B0_LED, LED_STAT_OFF);
3613 skge_write8(hw, B0_CTST, CS_RST_SET);
3615 flush_scheduled_work();
3617 free_irq(pdev->irq, hw);
3618 pci_release_regions(pdev);
3619 pci_disable_device(pdev);
3626 pci_set_drvdata(pdev, NULL);
3630 static int skge_suspend(struct pci_dev *pdev, pm_message_t state)
3632 struct skge_hw *hw = pci_get_drvdata(pdev);
3635 pci_save_state(pdev);
3636 for (i = 0; i < hw->ports; i++) {
3637 struct net_device *dev = hw->dev[i];
3639 if (netif_running(dev)) {
3640 struct skge_port *skge = netdev_priv(dev);
3642 netif_carrier_off(dev);
3644 netif_stop_queue(dev);
3649 netif_device_detach(dev);
3652 skge_write32(hw, B0_IMSK, 0);
3653 pci_enable_wake(pdev, pci_choose_state(pdev, state), wol);
3654 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3659 static int skge_resume(struct pci_dev *pdev)
3661 struct skge_hw *hw = pci_get_drvdata(pdev);
3664 pci_set_power_state(pdev, PCI_D0);
3665 pci_restore_state(pdev);
3666 pci_enable_wake(pdev, PCI_D0, 0);
3668 err = skge_reset(hw);
3672 for (i = 0; i < hw->ports; i++) {
3673 struct net_device *dev = hw->dev[i];
3675 netif_device_attach(dev);
3676 if (netif_running(dev)) {
3680 printk(KERN_ERR PFX "%s: could not up: %d\n",
3692 static struct pci_driver skge_driver = {
3694 .id_table = skge_id_table,
3695 .probe = skge_probe,
3696 .remove = __devexit_p(skge_remove),
3698 .suspend = skge_suspend,
3699 .resume = skge_resume,
3703 static int __init skge_init_module(void)
3705 return pci_register_driver(&skge_driver);
3708 static void __exit skge_cleanup_module(void)
3710 pci_unregister_driver(&skge_driver);
3713 module_init(skge_init_module);
3714 module_exit(skge_cleanup_module);