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.
27 #include <linux/config.h>
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 "1.3"
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 MAX_RX_RING_SIZE 4096
53 #define RX_COPY_THRESHOLD 128
54 #define RX_BUF_SIZE 1536
55 #define PHY_RETRIES 1000
56 #define ETH_JUMBO_MTU 9000
57 #define TX_WATCHDOG (5 * HZ)
58 #define NAPI_WEIGHT 64
61 MODULE_DESCRIPTION("SysKonnect Gigabit Ethernet driver");
62 MODULE_AUTHOR("Stephen Hemminger <shemminger@osdl.org>");
63 MODULE_LICENSE("GPL");
64 MODULE_VERSION(DRV_VERSION);
66 static const u32 default_msg
67 = NETIF_MSG_DRV| NETIF_MSG_PROBE| NETIF_MSG_LINK
68 | NETIF_MSG_IFUP| NETIF_MSG_IFDOWN;
70 static int debug = -1; /* defaults above */
71 module_param(debug, int, 0);
72 MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
74 static const struct pci_device_id skge_id_table[] = {
75 { PCI_DEVICE(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940) },
76 { PCI_DEVICE(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940B) },
77 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_GE) },
78 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_YU) },
79 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, PCI_DEVICE_ID_DLINK_DGE510T), },
80 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4320) },
81 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x5005) }, /* Belkin */
82 { PCI_DEVICE(PCI_VENDOR_ID_CNET, PCI_DEVICE_ID_CNET_GIGACARD) },
83 { PCI_DEVICE(PCI_VENDOR_ID_LINKSYS, PCI_DEVICE_ID_LINKSYS_EG1064) },
84 { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0015, },
87 MODULE_DEVICE_TABLE(pci, skge_id_table);
89 static int skge_up(struct net_device *dev);
90 static int skge_down(struct net_device *dev);
91 static void skge_phy_reset(struct skge_port *skge);
92 static void skge_tx_clean(struct skge_port *skge);
93 static int xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val);
94 static int gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val);
95 static void genesis_get_stats(struct skge_port *skge, u64 *data);
96 static void yukon_get_stats(struct skge_port *skge, u64 *data);
97 static void yukon_init(struct skge_hw *hw, int port);
98 static void genesis_mac_init(struct skge_hw *hw, int port);
99 static void genesis_link_up(struct skge_port *skge);
101 /* Avoid conditionals by using array */
102 static const int txqaddr[] = { Q_XA1, Q_XA2 };
103 static const int rxqaddr[] = { Q_R1, Q_R2 };
104 static const u32 rxirqmask[] = { IS_R1_F, IS_R2_F };
105 static const u32 txirqmask[] = { IS_XA1_F, IS_XA2_F };
106 static const u32 portirqmask[] = { IS_PORT_1, IS_PORT_2 };
108 static int skge_get_regs_len(struct net_device *dev)
114 * Returns copy of whole control register region
115 * Note: skip RAM address register because accessing it will
118 static void skge_get_regs(struct net_device *dev, struct ethtool_regs *regs,
121 const struct skge_port *skge = netdev_priv(dev);
122 const void __iomem *io = skge->hw->regs;
125 memset(p, 0, regs->len);
126 memcpy_fromio(p, io, B3_RAM_ADDR);
128 memcpy_fromio(p + B3_RI_WTO_R1, io + B3_RI_WTO_R1,
129 regs->len - B3_RI_WTO_R1);
132 /* Wake on Lan only supported on Yukon chips with rev 1 or above */
133 static int wol_supported(const struct skge_hw *hw)
135 return !((hw->chip_id == CHIP_ID_GENESIS ||
136 (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0)));
139 static void skge_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
141 struct skge_port *skge = netdev_priv(dev);
143 wol->supported = wol_supported(skge->hw) ? WAKE_MAGIC : 0;
144 wol->wolopts = skge->wol ? WAKE_MAGIC : 0;
147 static int skge_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
149 struct skge_port *skge = netdev_priv(dev);
150 struct skge_hw *hw = skge->hw;
152 if (wol->wolopts != WAKE_MAGIC && wol->wolopts != 0)
155 if (wol->wolopts == WAKE_MAGIC && !wol_supported(hw))
158 skge->wol = wol->wolopts == WAKE_MAGIC;
161 memcpy_toio(hw->regs + WOL_MAC_ADDR, dev->dev_addr, ETH_ALEN);
163 skge_write16(hw, WOL_CTRL_STAT,
164 WOL_CTL_ENA_PME_ON_MAGIC_PKT |
165 WOL_CTL_ENA_MAGIC_PKT_UNIT);
167 skge_write16(hw, WOL_CTRL_STAT, WOL_CTL_DEFAULT);
172 /* Determine supported/advertised modes based on hardware.
173 * Note: ethtool ADVERTISED_xxx == SUPPORTED_xxx
175 static u32 skge_supported_modes(const struct skge_hw *hw)
180 supported = SUPPORTED_10baseT_Half
181 | SUPPORTED_10baseT_Full
182 | SUPPORTED_100baseT_Half
183 | SUPPORTED_100baseT_Full
184 | SUPPORTED_1000baseT_Half
185 | SUPPORTED_1000baseT_Full
186 | SUPPORTED_Autoneg| SUPPORTED_TP;
188 if (hw->chip_id == CHIP_ID_GENESIS)
189 supported &= ~(SUPPORTED_10baseT_Half
190 | SUPPORTED_10baseT_Full
191 | SUPPORTED_100baseT_Half
192 | SUPPORTED_100baseT_Full);
194 else if (hw->chip_id == CHIP_ID_YUKON)
195 supported &= ~SUPPORTED_1000baseT_Half;
197 supported = SUPPORTED_1000baseT_Full | SUPPORTED_FIBRE
203 static int skge_get_settings(struct net_device *dev,
204 struct ethtool_cmd *ecmd)
206 struct skge_port *skge = netdev_priv(dev);
207 struct skge_hw *hw = skge->hw;
209 ecmd->transceiver = XCVR_INTERNAL;
210 ecmd->supported = skge_supported_modes(hw);
213 ecmd->port = PORT_TP;
214 ecmd->phy_address = hw->phy_addr;
216 ecmd->port = PORT_FIBRE;
218 ecmd->advertising = skge->advertising;
219 ecmd->autoneg = skge->autoneg;
220 ecmd->speed = skge->speed;
221 ecmd->duplex = skge->duplex;
225 static int skge_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
227 struct skge_port *skge = netdev_priv(dev);
228 const struct skge_hw *hw = skge->hw;
229 u32 supported = skge_supported_modes(hw);
231 if (ecmd->autoneg == AUTONEG_ENABLE) {
232 ecmd->advertising = supported;
238 switch (ecmd->speed) {
240 if (ecmd->duplex == DUPLEX_FULL)
241 setting = SUPPORTED_1000baseT_Full;
242 else if (ecmd->duplex == DUPLEX_HALF)
243 setting = SUPPORTED_1000baseT_Half;
248 if (ecmd->duplex == DUPLEX_FULL)
249 setting = SUPPORTED_100baseT_Full;
250 else if (ecmd->duplex == DUPLEX_HALF)
251 setting = SUPPORTED_100baseT_Half;
257 if (ecmd->duplex == DUPLEX_FULL)
258 setting = SUPPORTED_10baseT_Full;
259 else if (ecmd->duplex == DUPLEX_HALF)
260 setting = SUPPORTED_10baseT_Half;
268 if ((setting & supported) == 0)
271 skge->speed = ecmd->speed;
272 skge->duplex = ecmd->duplex;
275 skge->autoneg = ecmd->autoneg;
276 skge->advertising = ecmd->advertising;
278 if (netif_running(dev))
279 skge_phy_reset(skge);
284 static void skge_get_drvinfo(struct net_device *dev,
285 struct ethtool_drvinfo *info)
287 struct skge_port *skge = netdev_priv(dev);
289 strcpy(info->driver, DRV_NAME);
290 strcpy(info->version, DRV_VERSION);
291 strcpy(info->fw_version, "N/A");
292 strcpy(info->bus_info, pci_name(skge->hw->pdev));
295 static const struct skge_stat {
296 char name[ETH_GSTRING_LEN];
300 { "tx_bytes", XM_TXO_OK_HI, GM_TXO_OK_HI },
301 { "rx_bytes", XM_RXO_OK_HI, GM_RXO_OK_HI },
303 { "tx_broadcast", XM_TXF_BC_OK, GM_TXF_BC_OK },
304 { "rx_broadcast", XM_RXF_BC_OK, GM_RXF_BC_OK },
305 { "tx_multicast", XM_TXF_MC_OK, GM_TXF_MC_OK },
306 { "rx_multicast", XM_RXF_MC_OK, GM_RXF_MC_OK },
307 { "tx_unicast", XM_TXF_UC_OK, GM_TXF_UC_OK },
308 { "rx_unicast", XM_RXF_UC_OK, GM_RXF_UC_OK },
309 { "tx_mac_pause", XM_TXF_MPAUSE, GM_TXF_MPAUSE },
310 { "rx_mac_pause", XM_RXF_MPAUSE, GM_RXF_MPAUSE },
312 { "collisions", XM_TXF_SNG_COL, GM_TXF_SNG_COL },
313 { "multi_collisions", XM_TXF_MUL_COL, GM_TXF_MUL_COL },
314 { "aborted", XM_TXF_ABO_COL, GM_TXF_ABO_COL },
315 { "late_collision", XM_TXF_LAT_COL, GM_TXF_LAT_COL },
316 { "fifo_underrun", XM_TXE_FIFO_UR, GM_TXE_FIFO_UR },
317 { "fifo_overflow", XM_RXE_FIFO_OV, GM_RXE_FIFO_OV },
319 { "rx_toolong", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR },
320 { "rx_jabber", XM_RXF_JAB_PKT, GM_RXF_JAB_PKT },
321 { "rx_runt", XM_RXE_RUNT, GM_RXE_FRAG },
322 { "rx_too_long", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR },
323 { "rx_fcs_error", XM_RXF_FCS_ERR, GM_RXF_FCS_ERR },
326 static int skge_get_stats_count(struct net_device *dev)
328 return ARRAY_SIZE(skge_stats);
331 static void skge_get_ethtool_stats(struct net_device *dev,
332 struct ethtool_stats *stats, u64 *data)
334 struct skge_port *skge = netdev_priv(dev);
336 if (skge->hw->chip_id == CHIP_ID_GENESIS)
337 genesis_get_stats(skge, data);
339 yukon_get_stats(skge, data);
342 /* Use hardware MIB variables for critical path statistics and
343 * transmit feedback not reported at interrupt.
344 * Other errors are accounted for in interrupt handler.
346 static struct net_device_stats *skge_get_stats(struct net_device *dev)
348 struct skge_port *skge = netdev_priv(dev);
349 u64 data[ARRAY_SIZE(skge_stats)];
351 if (skge->hw->chip_id == CHIP_ID_GENESIS)
352 genesis_get_stats(skge, data);
354 yukon_get_stats(skge, data);
356 skge->net_stats.tx_bytes = data[0];
357 skge->net_stats.rx_bytes = data[1];
358 skge->net_stats.tx_packets = data[2] + data[4] + data[6];
359 skge->net_stats.rx_packets = data[3] + data[5] + data[7];
360 skge->net_stats.multicast = data[5] + data[7];
361 skge->net_stats.collisions = data[10];
362 skge->net_stats.tx_aborted_errors = data[12];
364 return &skge->net_stats;
367 static void skge_get_strings(struct net_device *dev, u32 stringset, u8 *data)
373 for (i = 0; i < ARRAY_SIZE(skge_stats); i++)
374 memcpy(data + i * ETH_GSTRING_LEN,
375 skge_stats[i].name, ETH_GSTRING_LEN);
380 static void skge_get_ring_param(struct net_device *dev,
381 struct ethtool_ringparam *p)
383 struct skge_port *skge = netdev_priv(dev);
385 p->rx_max_pending = MAX_RX_RING_SIZE;
386 p->tx_max_pending = MAX_TX_RING_SIZE;
387 p->rx_mini_max_pending = 0;
388 p->rx_jumbo_max_pending = 0;
390 p->rx_pending = skge->rx_ring.count;
391 p->tx_pending = skge->tx_ring.count;
392 p->rx_mini_pending = 0;
393 p->rx_jumbo_pending = 0;
396 static int skge_set_ring_param(struct net_device *dev,
397 struct ethtool_ringparam *p)
399 struct skge_port *skge = netdev_priv(dev);
402 if (p->rx_pending == 0 || p->rx_pending > MAX_RX_RING_SIZE ||
403 p->tx_pending == 0 || p->tx_pending > MAX_TX_RING_SIZE)
406 skge->rx_ring.count = p->rx_pending;
407 skge->tx_ring.count = p->tx_pending;
409 if (netif_running(dev)) {
415 dev->set_multicast_list(dev);
421 static u32 skge_get_msglevel(struct net_device *netdev)
423 struct skge_port *skge = netdev_priv(netdev);
424 return skge->msg_enable;
427 static void skge_set_msglevel(struct net_device *netdev, u32 value)
429 struct skge_port *skge = netdev_priv(netdev);
430 skge->msg_enable = value;
433 static int skge_nway_reset(struct net_device *dev)
435 struct skge_port *skge = netdev_priv(dev);
437 if (skge->autoneg != AUTONEG_ENABLE || !netif_running(dev))
440 skge_phy_reset(skge);
444 static int skge_set_sg(struct net_device *dev, u32 data)
446 struct skge_port *skge = netdev_priv(dev);
447 struct skge_hw *hw = skge->hw;
449 if (hw->chip_id == CHIP_ID_GENESIS && data)
451 return ethtool_op_set_sg(dev, data);
454 static int skge_set_tx_csum(struct net_device *dev, u32 data)
456 struct skge_port *skge = netdev_priv(dev);
457 struct skge_hw *hw = skge->hw;
459 if (hw->chip_id == CHIP_ID_GENESIS && data)
462 return ethtool_op_set_tx_csum(dev, data);
465 static u32 skge_get_rx_csum(struct net_device *dev)
467 struct skge_port *skge = netdev_priv(dev);
469 return skge->rx_csum;
472 /* Only Yukon supports checksum offload. */
473 static int skge_set_rx_csum(struct net_device *dev, u32 data)
475 struct skge_port *skge = netdev_priv(dev);
477 if (skge->hw->chip_id == CHIP_ID_GENESIS && data)
480 skge->rx_csum = data;
484 static void skge_get_pauseparam(struct net_device *dev,
485 struct ethtool_pauseparam *ecmd)
487 struct skge_port *skge = netdev_priv(dev);
489 ecmd->tx_pause = (skge->flow_control == FLOW_MODE_LOC_SEND)
490 || (skge->flow_control == FLOW_MODE_SYMMETRIC);
491 ecmd->rx_pause = (skge->flow_control == FLOW_MODE_REM_SEND)
492 || (skge->flow_control == FLOW_MODE_SYMMETRIC);
494 ecmd->autoneg = skge->autoneg;
497 static int skge_set_pauseparam(struct net_device *dev,
498 struct ethtool_pauseparam *ecmd)
500 struct skge_port *skge = netdev_priv(dev);
502 skge->autoneg = ecmd->autoneg;
503 if (ecmd->rx_pause && ecmd->tx_pause)
504 skge->flow_control = FLOW_MODE_SYMMETRIC;
505 else if (ecmd->rx_pause && !ecmd->tx_pause)
506 skge->flow_control = FLOW_MODE_REM_SEND;
507 else if (!ecmd->rx_pause && ecmd->tx_pause)
508 skge->flow_control = FLOW_MODE_LOC_SEND;
510 skge->flow_control = FLOW_MODE_NONE;
512 if (netif_running(dev))
513 skge_phy_reset(skge);
517 /* Chip internal frequency for clock calculations */
518 static inline u32 hwkhz(const struct skge_hw *hw)
520 if (hw->chip_id == CHIP_ID_GENESIS)
521 return 53215; /* or: 53.125 MHz */
523 return 78215; /* or: 78.125 MHz */
526 /* Chip HZ to microseconds */
527 static inline u32 skge_clk2usec(const struct skge_hw *hw, u32 ticks)
529 return (ticks * 1000) / hwkhz(hw);
532 /* Microseconds to chip HZ */
533 static inline u32 skge_usecs2clk(const struct skge_hw *hw, u32 usec)
535 return hwkhz(hw) * usec / 1000;
538 static int skge_get_coalesce(struct net_device *dev,
539 struct ethtool_coalesce *ecmd)
541 struct skge_port *skge = netdev_priv(dev);
542 struct skge_hw *hw = skge->hw;
543 int port = skge->port;
545 ecmd->rx_coalesce_usecs = 0;
546 ecmd->tx_coalesce_usecs = 0;
548 if (skge_read32(hw, B2_IRQM_CTRL) & TIM_START) {
549 u32 delay = skge_clk2usec(hw, skge_read32(hw, B2_IRQM_INI));
550 u32 msk = skge_read32(hw, B2_IRQM_MSK);
552 if (msk & rxirqmask[port])
553 ecmd->rx_coalesce_usecs = delay;
554 if (msk & txirqmask[port])
555 ecmd->tx_coalesce_usecs = delay;
561 /* Note: interrupt timer is per board, but can turn on/off per port */
562 static int skge_set_coalesce(struct net_device *dev,
563 struct ethtool_coalesce *ecmd)
565 struct skge_port *skge = netdev_priv(dev);
566 struct skge_hw *hw = skge->hw;
567 int port = skge->port;
568 u32 msk = skge_read32(hw, B2_IRQM_MSK);
571 if (ecmd->rx_coalesce_usecs == 0)
572 msk &= ~rxirqmask[port];
573 else if (ecmd->rx_coalesce_usecs < 25 ||
574 ecmd->rx_coalesce_usecs > 33333)
577 msk |= rxirqmask[port];
578 delay = ecmd->rx_coalesce_usecs;
581 if (ecmd->tx_coalesce_usecs == 0)
582 msk &= ~txirqmask[port];
583 else if (ecmd->tx_coalesce_usecs < 25 ||
584 ecmd->tx_coalesce_usecs > 33333)
587 msk |= txirqmask[port];
588 delay = min(delay, ecmd->rx_coalesce_usecs);
591 skge_write32(hw, B2_IRQM_MSK, msk);
593 skge_write32(hw, B2_IRQM_CTRL, TIM_STOP);
595 skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, delay));
596 skge_write32(hw, B2_IRQM_CTRL, TIM_START);
601 enum led_mode { LED_MODE_OFF, LED_MODE_ON, LED_MODE_TST };
602 static void skge_led(struct skge_port *skge, enum led_mode mode)
604 struct skge_hw *hw = skge->hw;
605 int port = skge->port;
607 spin_lock_bh(&hw->phy_lock);
608 if (hw->chip_id == CHIP_ID_GENESIS) {
611 xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_OFF);
612 skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF);
613 skge_write32(hw, SK_REG(port, RX_LED_VAL), 0);
614 skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_T_OFF);
618 skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_ON);
619 skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_LINKSYNC_ON);
621 skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START);
622 skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START);
627 skge_write8(hw, SK_REG(port, RX_LED_TST), LED_T_ON);
628 skge_write32(hw, SK_REG(port, RX_LED_VAL), 100);
629 skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START);
631 xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_ON);
637 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
638 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
639 PHY_M_LED_MO_DUP(MO_LED_OFF) |
640 PHY_M_LED_MO_10(MO_LED_OFF) |
641 PHY_M_LED_MO_100(MO_LED_OFF) |
642 PHY_M_LED_MO_1000(MO_LED_OFF) |
643 PHY_M_LED_MO_RX(MO_LED_OFF));
646 gm_phy_write(hw, port, PHY_MARV_LED_CTRL,
647 PHY_M_LED_PULS_DUR(PULS_170MS) |
648 PHY_M_LED_BLINK_RT(BLINK_84MS) |
652 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
653 PHY_M_LED_MO_RX(MO_LED_OFF) |
654 (skge->speed == SPEED_100 ?
655 PHY_M_LED_MO_100(MO_LED_ON) : 0));
658 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
659 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
660 PHY_M_LED_MO_DUP(MO_LED_ON) |
661 PHY_M_LED_MO_10(MO_LED_ON) |
662 PHY_M_LED_MO_100(MO_LED_ON) |
663 PHY_M_LED_MO_1000(MO_LED_ON) |
664 PHY_M_LED_MO_RX(MO_LED_ON));
667 spin_unlock_bh(&hw->phy_lock);
670 /* blink LED's for finding board */
671 static int skge_phys_id(struct net_device *dev, u32 data)
673 struct skge_port *skge = netdev_priv(dev);
675 enum led_mode mode = LED_MODE_TST;
677 if (!data || data > (u32)(MAX_SCHEDULE_TIMEOUT / HZ))
678 ms = jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT / HZ) * 1000;
683 skge_led(skge, mode);
684 mode ^= LED_MODE_TST;
686 if (msleep_interruptible(BLINK_MS))
691 /* back to regular LED state */
692 skge_led(skge, netif_running(dev) ? LED_MODE_ON : LED_MODE_OFF);
697 static struct ethtool_ops skge_ethtool_ops = {
698 .get_settings = skge_get_settings,
699 .set_settings = skge_set_settings,
700 .get_drvinfo = skge_get_drvinfo,
701 .get_regs_len = skge_get_regs_len,
702 .get_regs = skge_get_regs,
703 .get_wol = skge_get_wol,
704 .set_wol = skge_set_wol,
705 .get_msglevel = skge_get_msglevel,
706 .set_msglevel = skge_set_msglevel,
707 .nway_reset = skge_nway_reset,
708 .get_link = ethtool_op_get_link,
709 .get_ringparam = skge_get_ring_param,
710 .set_ringparam = skge_set_ring_param,
711 .get_pauseparam = skge_get_pauseparam,
712 .set_pauseparam = skge_set_pauseparam,
713 .get_coalesce = skge_get_coalesce,
714 .set_coalesce = skge_set_coalesce,
715 .get_sg = ethtool_op_get_sg,
716 .set_sg = skge_set_sg,
717 .get_tx_csum = ethtool_op_get_tx_csum,
718 .set_tx_csum = skge_set_tx_csum,
719 .get_rx_csum = skge_get_rx_csum,
720 .set_rx_csum = skge_set_rx_csum,
721 .get_strings = skge_get_strings,
722 .phys_id = skge_phys_id,
723 .get_stats_count = skge_get_stats_count,
724 .get_ethtool_stats = skge_get_ethtool_stats,
725 .get_perm_addr = ethtool_op_get_perm_addr,
729 * Allocate ring elements and chain them together
730 * One-to-one association of board descriptors with ring elements
732 static int skge_ring_alloc(struct skge_ring *ring, void *vaddr, u64 base)
734 struct skge_tx_desc *d;
735 struct skge_element *e;
738 ring->start = kmalloc(sizeof(*e)*ring->count, GFP_KERNEL);
742 for (i = 0, e = ring->start, d = vaddr; i < ring->count; i++, e++, d++) {
745 if (i == ring->count - 1) {
746 e->next = ring->start;
747 d->next_offset = base;
750 d->next_offset = base + (i+1) * sizeof(*d);
753 ring->to_use = ring->to_clean = ring->start;
758 /* Allocate and setup a new buffer for receiving */
759 static void skge_rx_setup(struct skge_port *skge, struct skge_element *e,
760 struct sk_buff *skb, unsigned int bufsize)
762 struct skge_rx_desc *rd = e->desc;
765 map = pci_map_single(skge->hw->pdev, skb->data, bufsize,
769 rd->dma_hi = map >> 32;
771 rd->csum1_start = ETH_HLEN;
772 rd->csum2_start = ETH_HLEN;
778 rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | bufsize;
779 pci_unmap_addr_set(e, mapaddr, map);
780 pci_unmap_len_set(e, maplen, bufsize);
783 /* Resume receiving using existing skb,
784 * Note: DMA address is not changed by chip.
785 * MTU not changed while receiver active.
787 static void skge_rx_reuse(struct skge_element *e, unsigned int size)
789 struct skge_rx_desc *rd = e->desc;
792 rd->csum2_start = ETH_HLEN;
796 rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | size;
800 /* Free all buffers in receive ring, assumes receiver stopped */
801 static void skge_rx_clean(struct skge_port *skge)
803 struct skge_hw *hw = skge->hw;
804 struct skge_ring *ring = &skge->rx_ring;
805 struct skge_element *e;
809 struct skge_rx_desc *rd = e->desc;
812 pci_unmap_single(hw->pdev,
813 pci_unmap_addr(e, mapaddr),
814 pci_unmap_len(e, maplen),
816 dev_kfree_skb(e->skb);
819 } while ((e = e->next) != ring->start);
823 /* Allocate buffers for receive ring
824 * For receive: to_clean is next received frame.
826 static int skge_rx_fill(struct skge_port *skge)
828 struct skge_ring *ring = &skge->rx_ring;
829 struct skge_element *e;
835 skb = dev_alloc_skb(skge->rx_buf_size + NET_IP_ALIGN);
839 skb_reserve(skb, NET_IP_ALIGN);
840 skge_rx_setup(skge, e, skb, skge->rx_buf_size);
841 } while ( (e = e->next) != ring->start);
843 ring->to_clean = ring->start;
847 static void skge_link_up(struct skge_port *skge)
849 skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG),
850 LED_BLK_OFF|LED_SYNC_OFF|LED_ON);
852 netif_carrier_on(skge->netdev);
853 if (skge->tx_avail > MAX_SKB_FRAGS + 1)
854 netif_wake_queue(skge->netdev);
856 if (netif_msg_link(skge))
858 "%s: Link is up at %d Mbps, %s duplex, flow control %s\n",
859 skge->netdev->name, skge->speed,
860 skge->duplex == DUPLEX_FULL ? "full" : "half",
861 (skge->flow_control == FLOW_MODE_NONE) ? "none" :
862 (skge->flow_control == FLOW_MODE_LOC_SEND) ? "tx only" :
863 (skge->flow_control == FLOW_MODE_REM_SEND) ? "rx only" :
864 (skge->flow_control == FLOW_MODE_SYMMETRIC) ? "tx and rx" :
868 static void skge_link_down(struct skge_port *skge)
870 skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF);
871 netif_carrier_off(skge->netdev);
872 netif_stop_queue(skge->netdev);
874 if (netif_msg_link(skge))
875 printk(KERN_INFO PFX "%s: Link is down.\n", skge->netdev->name);
878 static int __xm_phy_read(struct skge_hw *hw, int port, u16 reg, u16 *val)
882 xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr);
883 xm_read16(hw, port, XM_PHY_DATA);
885 /* Need to wait for external PHY */
886 for (i = 0; i < PHY_RETRIES; i++) {
888 if (xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_RDY)
894 *val = xm_read16(hw, port, XM_PHY_DATA);
899 static u16 xm_phy_read(struct skge_hw *hw, int port, u16 reg)
902 if (__xm_phy_read(hw, port, reg, &v))
903 printk(KERN_WARNING PFX "%s: phy read timed out\n",
904 hw->dev[port]->name);
908 static int xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val)
912 xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr);
913 for (i = 0; i < PHY_RETRIES; i++) {
914 if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY))
921 xm_write16(hw, port, XM_PHY_DATA, val);
925 static void genesis_init(struct skge_hw *hw)
927 /* set blink source counter */
928 skge_write32(hw, B2_BSC_INI, (SK_BLK_DUR * SK_FACT_53) / 100);
929 skge_write8(hw, B2_BSC_CTRL, BSC_START);
931 /* configure mac arbiter */
932 skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR);
934 /* configure mac arbiter timeout values */
935 skge_write8(hw, B3_MA_TOINI_RX1, SK_MAC_TO_53);
936 skge_write8(hw, B3_MA_TOINI_RX2, SK_MAC_TO_53);
937 skge_write8(hw, B3_MA_TOINI_TX1, SK_MAC_TO_53);
938 skge_write8(hw, B3_MA_TOINI_TX2, SK_MAC_TO_53);
940 skge_write8(hw, B3_MA_RCINI_RX1, 0);
941 skge_write8(hw, B3_MA_RCINI_RX2, 0);
942 skge_write8(hw, B3_MA_RCINI_TX1, 0);
943 skge_write8(hw, B3_MA_RCINI_TX2, 0);
945 /* configure packet arbiter timeout */
946 skge_write16(hw, B3_PA_CTRL, PA_RST_CLR);
947 skge_write16(hw, B3_PA_TOINI_RX1, SK_PKT_TO_MAX);
948 skge_write16(hw, B3_PA_TOINI_TX1, SK_PKT_TO_MAX);
949 skge_write16(hw, B3_PA_TOINI_RX2, SK_PKT_TO_MAX);
950 skge_write16(hw, B3_PA_TOINI_TX2, SK_PKT_TO_MAX);
953 static void genesis_reset(struct skge_hw *hw, int port)
955 const u8 zero[8] = { 0 };
957 skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0);
959 /* reset the statistics module */
960 xm_write32(hw, port, XM_GP_PORT, XM_GP_RES_STAT);
961 xm_write16(hw, port, XM_IMSK, 0xffff); /* disable XMAC IRQs */
962 xm_write32(hw, port, XM_MODE, 0); /* clear Mode Reg */
963 xm_write16(hw, port, XM_TX_CMD, 0); /* reset TX CMD Reg */
964 xm_write16(hw, port, XM_RX_CMD, 0); /* reset RX CMD Reg */
966 /* disable Broadcom PHY IRQ */
967 xm_write16(hw, port, PHY_BCOM_INT_MASK, 0xffff);
969 xm_outhash(hw, port, XM_HSM, zero);
973 /* Convert mode to MII values */
974 static const u16 phy_pause_map[] = {
975 [FLOW_MODE_NONE] = 0,
976 [FLOW_MODE_LOC_SEND] = PHY_AN_PAUSE_ASYM,
977 [FLOW_MODE_SYMMETRIC] = PHY_AN_PAUSE_CAP,
978 [FLOW_MODE_REM_SEND] = PHY_AN_PAUSE_CAP | PHY_AN_PAUSE_ASYM,
982 /* Check status of Broadcom phy link */
983 static void bcom_check_link(struct skge_hw *hw, int port)
985 struct net_device *dev = hw->dev[port];
986 struct skge_port *skge = netdev_priv(dev);
989 /* read twice because of latch */
990 (void) xm_phy_read(hw, port, PHY_BCOM_STAT);
991 status = xm_phy_read(hw, port, PHY_BCOM_STAT);
993 if ((status & PHY_ST_LSYNC) == 0) {
994 u16 cmd = xm_read16(hw, port, XM_MMU_CMD);
995 cmd &= ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX);
996 xm_write16(hw, port, XM_MMU_CMD, cmd);
997 /* dummy read to ensure writing */
998 (void) xm_read16(hw, port, XM_MMU_CMD);
1000 if (netif_carrier_ok(dev))
1001 skge_link_down(skge);
1003 if (skge->autoneg == AUTONEG_ENABLE &&
1004 (status & PHY_ST_AN_OVER)) {
1005 u16 lpa = xm_phy_read(hw, port, PHY_BCOM_AUNE_LP);
1006 u16 aux = xm_phy_read(hw, port, PHY_BCOM_AUX_STAT);
1008 if (lpa & PHY_B_AN_RF) {
1009 printk(KERN_NOTICE PFX "%s: remote fault\n",
1014 /* Check Duplex mismatch */
1015 switch (aux & PHY_B_AS_AN_RES_MSK) {
1016 case PHY_B_RES_1000FD:
1017 skge->duplex = DUPLEX_FULL;
1019 case PHY_B_RES_1000HD:
1020 skge->duplex = DUPLEX_HALF;
1023 printk(KERN_NOTICE PFX "%s: duplex mismatch\n",
1029 /* We are using IEEE 802.3z/D5.0 Table 37-4 */
1030 switch (aux & PHY_B_AS_PAUSE_MSK) {
1031 case PHY_B_AS_PAUSE_MSK:
1032 skge->flow_control = FLOW_MODE_SYMMETRIC;
1035 skge->flow_control = FLOW_MODE_REM_SEND;
1038 skge->flow_control = FLOW_MODE_LOC_SEND;
1041 skge->flow_control = FLOW_MODE_NONE;
1044 skge->speed = SPEED_1000;
1047 if (!netif_carrier_ok(dev))
1048 genesis_link_up(skge);
1052 /* Broadcom 5400 only supports giagabit! SysKonnect did not put an additional
1053 * Phy on for 100 or 10Mbit operation
1055 static void bcom_phy_init(struct skge_port *skge, int jumbo)
1057 struct skge_hw *hw = skge->hw;
1058 int port = skge->port;
1060 u16 id1, r, ext, ctl;
1062 /* magic workaround patterns for Broadcom */
1063 static const struct {
1067 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 },
1068 { 0x17, 0x0013 }, { 0x15, 0x0404 }, { 0x17, 0x8006 },
1069 { 0x15, 0x0132 }, { 0x17, 0x8006 }, { 0x15, 0x0232 },
1070 { 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 },
1072 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1204 },
1073 { 0x17, 0x0013 }, { 0x15, 0x0A04 }, { 0x18, 0x0420 },
1076 /* read Id from external PHY (all have the same address) */
1077 id1 = xm_phy_read(hw, port, PHY_XMAC_ID1);
1079 /* Optimize MDIO transfer by suppressing preamble. */
1080 r = xm_read16(hw, port, XM_MMU_CMD);
1082 xm_write16(hw, port, XM_MMU_CMD,r);
1085 case PHY_BCOM_ID1_C0:
1087 * Workaround BCOM Errata for the C0 type.
1088 * Write magic patterns to reserved registers.
1090 for (i = 0; i < ARRAY_SIZE(C0hack); i++)
1091 xm_phy_write(hw, port,
1092 C0hack[i].reg, C0hack[i].val);
1095 case PHY_BCOM_ID1_A1:
1097 * Workaround BCOM Errata for the A1 type.
1098 * Write magic patterns to reserved registers.
1100 for (i = 0; i < ARRAY_SIZE(A1hack); i++)
1101 xm_phy_write(hw, port,
1102 A1hack[i].reg, A1hack[i].val);
1107 * Workaround BCOM Errata (#10523) for all BCom PHYs.
1108 * Disable Power Management after reset.
1110 r = xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL);
1111 r |= PHY_B_AC_DIS_PM;
1112 xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, r);
1115 xm_read16(hw, port, XM_ISRC);
1117 ext = PHY_B_PEC_EN_LTR; /* enable tx led */
1118 ctl = PHY_CT_SP1000; /* always 1000mbit */
1120 if (skge->autoneg == AUTONEG_ENABLE) {
1122 * Workaround BCOM Errata #1 for the C5 type.
1123 * 1000Base-T Link Acquisition Failure in Slave Mode
1124 * Set Repeater/DTE bit 10 of the 1000Base-T Control Register
1126 u16 adv = PHY_B_1000C_RD;
1127 if (skge->advertising & ADVERTISED_1000baseT_Half)
1128 adv |= PHY_B_1000C_AHD;
1129 if (skge->advertising & ADVERTISED_1000baseT_Full)
1130 adv |= PHY_B_1000C_AFD;
1131 xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, adv);
1133 ctl |= PHY_CT_ANE | PHY_CT_RE_CFG;
1135 if (skge->duplex == DUPLEX_FULL)
1136 ctl |= PHY_CT_DUP_MD;
1137 /* Force to slave */
1138 xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, PHY_B_1000C_MSE);
1141 /* Set autonegotiation pause parameters */
1142 xm_phy_write(hw, port, PHY_BCOM_AUNE_ADV,
1143 phy_pause_map[skge->flow_control] | PHY_AN_CSMA);
1145 /* Handle Jumbo frames */
1147 xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL,
1148 PHY_B_AC_TX_TST | PHY_B_AC_LONG_PACK);
1150 ext |= PHY_B_PEC_HIGH_LA;
1154 xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, ext);
1155 xm_phy_write(hw, port, PHY_BCOM_CTRL, ctl);
1157 /* Use link status change interrupt */
1158 xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK);
1160 bcom_check_link(hw, port);
1163 static void genesis_mac_init(struct skge_hw *hw, int port)
1165 struct net_device *dev = hw->dev[port];
1166 struct skge_port *skge = netdev_priv(dev);
1167 int jumbo = hw->dev[port]->mtu > ETH_DATA_LEN;
1170 const u8 zero[6] = { 0 };
1172 /* Clear MIB counters */
1173 xm_write16(hw, port, XM_STAT_CMD,
1174 XM_SC_CLR_RXC | XM_SC_CLR_TXC);
1175 /* Clear two times according to Errata #3 */
1176 xm_write16(hw, port, XM_STAT_CMD,
1177 XM_SC_CLR_RXC | XM_SC_CLR_TXC);
1179 /* Unreset the XMAC. */
1180 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST);
1183 * Perform additional initialization for external PHYs,
1184 * namely for the 1000baseTX cards that use the XMAC's
1187 /* Take external Phy out of reset */
1188 r = skge_read32(hw, B2_GP_IO);
1190 r |= GP_DIR_0|GP_IO_0;
1192 r |= GP_DIR_2|GP_IO_2;
1194 skge_write32(hw, B2_GP_IO, r);
1195 skge_read32(hw, B2_GP_IO);
1197 /* Enable GMII interface */
1198 xm_write16(hw, port, XM_HW_CFG, XM_HW_GMII_MD);
1200 bcom_phy_init(skge, jumbo);
1202 /* Set Station Address */
1203 xm_outaddr(hw, port, XM_SA, dev->dev_addr);
1205 /* We don't use match addresses so clear */
1206 for (i = 1; i < 16; i++)
1207 xm_outaddr(hw, port, XM_EXM(i), zero);
1209 /* configure Rx High Water Mark (XM_RX_HI_WM) */
1210 xm_write16(hw, port, XM_RX_HI_WM, 1450);
1212 /* We don't need the FCS appended to the packet. */
1213 r = XM_RX_LENERR_OK | XM_RX_STRIP_FCS;
1215 r |= XM_RX_BIG_PK_OK;
1217 if (skge->duplex == DUPLEX_HALF) {
1219 * If in manual half duplex mode the other side might be in
1220 * full duplex mode, so ignore if a carrier extension is not seen
1221 * on frames received
1223 r |= XM_RX_DIS_CEXT;
1225 xm_write16(hw, port, XM_RX_CMD, r);
1228 /* We want short frames padded to 60 bytes. */
1229 xm_write16(hw, port, XM_TX_CMD, XM_TX_AUTO_PAD);
1232 * Bump up the transmit threshold. This helps hold off transmit
1233 * underruns when we're blasting traffic from both ports at once.
1235 xm_write16(hw, port, XM_TX_THR, 512);
1238 * Enable the reception of all error frames. This is is
1239 * a necessary evil due to the design of the XMAC. The
1240 * XMAC's receive FIFO is only 8K in size, however jumbo
1241 * frames can be up to 9000 bytes in length. When bad
1242 * frame filtering is enabled, the XMAC's RX FIFO operates
1243 * in 'store and forward' mode. For this to work, the
1244 * entire frame has to fit into the FIFO, but that means
1245 * that jumbo frames larger than 8192 bytes will be
1246 * truncated. Disabling all bad frame filtering causes
1247 * the RX FIFO to operate in streaming mode, in which
1248 * case the XMAC will start transferring frames out of the
1249 * RX FIFO as soon as the FIFO threshold is reached.
1251 xm_write32(hw, port, XM_MODE, XM_DEF_MODE);
1255 * Initialize the Receive Counter Event Mask (XM_RX_EV_MSK)
1256 * - Enable all bits excepting 'Octets Rx OK Low CntOv'
1257 * and 'Octets Rx OK Hi Cnt Ov'.
1259 xm_write32(hw, port, XM_RX_EV_MSK, XMR_DEF_MSK);
1262 * Initialize the Transmit Counter Event Mask (XM_TX_EV_MSK)
1263 * - Enable all bits excepting 'Octets Tx OK Low CntOv'
1264 * and 'Octets Tx OK Hi Cnt Ov'.
1266 xm_write32(hw, port, XM_TX_EV_MSK, XMT_DEF_MSK);
1268 /* Configure MAC arbiter */
1269 skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR);
1271 /* configure timeout values */
1272 skge_write8(hw, B3_MA_TOINI_RX1, 72);
1273 skge_write8(hw, B3_MA_TOINI_RX2, 72);
1274 skge_write8(hw, B3_MA_TOINI_TX1, 72);
1275 skge_write8(hw, B3_MA_TOINI_TX2, 72);
1277 skge_write8(hw, B3_MA_RCINI_RX1, 0);
1278 skge_write8(hw, B3_MA_RCINI_RX2, 0);
1279 skge_write8(hw, B3_MA_RCINI_TX1, 0);
1280 skge_write8(hw, B3_MA_RCINI_TX2, 0);
1282 /* Configure Rx MAC FIFO */
1283 skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_CLR);
1284 skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_TIM_PAT);
1285 skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_ENA_OP_MD);
1287 /* Configure Tx MAC FIFO */
1288 skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_CLR);
1289 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_TX_CTRL_DEF);
1290 skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_ENA_OP_MD);
1293 /* Enable frame flushing if jumbo frames used */
1294 skge_write16(hw, SK_REG(port,RX_MFF_CTRL1), MFF_ENA_FLUSH);
1296 /* enable timeout timers if normal frames */
1297 skge_write16(hw, B3_PA_CTRL,
1298 (port == 0) ? PA_ENA_TO_TX1 : PA_ENA_TO_TX2);
1302 static void genesis_stop(struct skge_port *skge)
1304 struct skge_hw *hw = skge->hw;
1305 int port = skge->port;
1308 genesis_reset(hw, port);
1310 /* Clear Tx packet arbiter timeout IRQ */
1311 skge_write16(hw, B3_PA_CTRL,
1312 port == 0 ? PA_CLR_TO_TX1 : PA_CLR_TO_TX2);
1315 * If the transfer sticks at the MAC the STOP command will not
1316 * terminate if we don't flush the XMAC's transmit FIFO !
1318 xm_write32(hw, port, XM_MODE,
1319 xm_read32(hw, port, XM_MODE)|XM_MD_FTF);
1323 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_SET_MAC_RST);
1325 /* For external PHYs there must be special handling */
1326 reg = skge_read32(hw, B2_GP_IO);
1334 skge_write32(hw, B2_GP_IO, reg);
1335 skge_read32(hw, B2_GP_IO);
1337 xm_write16(hw, port, XM_MMU_CMD,
1338 xm_read16(hw, port, XM_MMU_CMD)
1339 & ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX));
1341 xm_read16(hw, port, XM_MMU_CMD);
1345 static void genesis_get_stats(struct skge_port *skge, u64 *data)
1347 struct skge_hw *hw = skge->hw;
1348 int port = skge->port;
1350 unsigned long timeout = jiffies + HZ;
1352 xm_write16(hw, port,
1353 XM_STAT_CMD, XM_SC_SNP_TXC | XM_SC_SNP_RXC);
1355 /* wait for update to complete */
1356 while (xm_read16(hw, port, XM_STAT_CMD)
1357 & (XM_SC_SNP_TXC | XM_SC_SNP_RXC)) {
1358 if (time_after(jiffies, timeout))
1363 /* special case for 64 bit octet counter */
1364 data[0] = (u64) xm_read32(hw, port, XM_TXO_OK_HI) << 32
1365 | xm_read32(hw, port, XM_TXO_OK_LO);
1366 data[1] = (u64) xm_read32(hw, port, XM_RXO_OK_HI) << 32
1367 | xm_read32(hw, port, XM_RXO_OK_LO);
1369 for (i = 2; i < ARRAY_SIZE(skge_stats); i++)
1370 data[i] = xm_read32(hw, port, skge_stats[i].xmac_offset);
1373 static void genesis_mac_intr(struct skge_hw *hw, int port)
1375 struct skge_port *skge = netdev_priv(hw->dev[port]);
1376 u16 status = xm_read16(hw, port, XM_ISRC);
1378 if (netif_msg_intr(skge))
1379 printk(KERN_DEBUG PFX "%s: mac interrupt status 0x%x\n",
1380 skge->netdev->name, status);
1382 if (status & XM_IS_TXF_UR) {
1383 xm_write32(hw, port, XM_MODE, XM_MD_FTF);
1384 ++skge->net_stats.tx_fifo_errors;
1386 if (status & XM_IS_RXF_OV) {
1387 xm_write32(hw, port, XM_MODE, XM_MD_FRF);
1388 ++skge->net_stats.rx_fifo_errors;
1392 static void genesis_link_up(struct skge_port *skge)
1394 struct skge_hw *hw = skge->hw;
1395 int port = skge->port;
1399 cmd = xm_read16(hw, port, XM_MMU_CMD);
1402 * enabling pause frame reception is required for 1000BT
1403 * because the XMAC is not reset if the link is going down
1405 if (skge->flow_control == FLOW_MODE_NONE ||
1406 skge->flow_control == FLOW_MODE_LOC_SEND)
1407 /* Disable Pause Frame Reception */
1408 cmd |= XM_MMU_IGN_PF;
1410 /* Enable Pause Frame Reception */
1411 cmd &= ~XM_MMU_IGN_PF;
1413 xm_write16(hw, port, XM_MMU_CMD, cmd);
1415 mode = xm_read32(hw, port, XM_MODE);
1416 if (skge->flow_control == FLOW_MODE_SYMMETRIC ||
1417 skge->flow_control == FLOW_MODE_LOC_SEND) {
1419 * Configure Pause Frame Generation
1420 * Use internal and external Pause Frame Generation.
1421 * Sending pause frames is edge triggered.
1422 * Send a Pause frame with the maximum pause time if
1423 * internal oder external FIFO full condition occurs.
1424 * Send a zero pause time frame to re-start transmission.
1426 /* XM_PAUSE_DA = '010000C28001' (default) */
1427 /* XM_MAC_PTIME = 0xffff (maximum) */
1428 /* remember this value is defined in big endian (!) */
1429 xm_write16(hw, port, XM_MAC_PTIME, 0xffff);
1431 mode |= XM_PAUSE_MODE;
1432 skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_PAUSE);
1435 * disable pause frame generation is required for 1000BT
1436 * because the XMAC is not reset if the link is going down
1438 /* Disable Pause Mode in Mode Register */
1439 mode &= ~XM_PAUSE_MODE;
1441 skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_DIS_PAUSE);
1444 xm_write32(hw, port, XM_MODE, mode);
1447 /* disable GP0 interrupt bit for external Phy */
1448 msk |= XM_IS_INP_ASS;
1450 xm_write16(hw, port, XM_IMSK, msk);
1451 xm_read16(hw, port, XM_ISRC);
1453 /* get MMU Command Reg. */
1454 cmd = xm_read16(hw, port, XM_MMU_CMD);
1455 if (skge->duplex == DUPLEX_FULL)
1456 cmd |= XM_MMU_GMII_FD;
1459 * Workaround BCOM Errata (#10523) for all BCom Phys
1460 * Enable Power Management after link up
1462 xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL,
1463 xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL)
1464 & ~PHY_B_AC_DIS_PM);
1465 xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK);
1468 xm_write16(hw, port, XM_MMU_CMD,
1469 cmd | XM_MMU_ENA_RX | XM_MMU_ENA_TX);
1474 static inline void bcom_phy_intr(struct skge_port *skge)
1476 struct skge_hw *hw = skge->hw;
1477 int port = skge->port;
1480 isrc = xm_phy_read(hw, port, PHY_BCOM_INT_STAT);
1481 if (netif_msg_intr(skge))
1482 printk(KERN_DEBUG PFX "%s: phy interrupt status 0x%x\n",
1483 skge->netdev->name, isrc);
1485 if (isrc & PHY_B_IS_PSE)
1486 printk(KERN_ERR PFX "%s: uncorrectable pair swap error\n",
1487 hw->dev[port]->name);
1489 /* Workaround BCom Errata:
1490 * enable and disable loopback mode if "NO HCD" occurs.
1492 if (isrc & PHY_B_IS_NO_HDCL) {
1493 u16 ctrl = xm_phy_read(hw, port, PHY_BCOM_CTRL);
1494 xm_phy_write(hw, port, PHY_BCOM_CTRL,
1495 ctrl | PHY_CT_LOOP);
1496 xm_phy_write(hw, port, PHY_BCOM_CTRL,
1497 ctrl & ~PHY_CT_LOOP);
1500 if (isrc & (PHY_B_IS_AN_PR | PHY_B_IS_LST_CHANGE))
1501 bcom_check_link(hw, port);
1505 static int gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val)
1509 gma_write16(hw, port, GM_SMI_DATA, val);
1510 gma_write16(hw, port, GM_SMI_CTRL,
1511 GM_SMI_CT_PHY_AD(hw->phy_addr) | GM_SMI_CT_REG_AD(reg));
1512 for (i = 0; i < PHY_RETRIES; i++) {
1515 if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY))
1519 printk(KERN_WARNING PFX "%s: phy write timeout\n",
1520 hw->dev[port]->name);
1524 static int __gm_phy_read(struct skge_hw *hw, int port, u16 reg, u16 *val)
1528 gma_write16(hw, port, GM_SMI_CTRL,
1529 GM_SMI_CT_PHY_AD(hw->phy_addr)
1530 | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD);
1532 for (i = 0; i < PHY_RETRIES; i++) {
1534 if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL)
1540 *val = gma_read16(hw, port, GM_SMI_DATA);
1544 static u16 gm_phy_read(struct skge_hw *hw, int port, u16 reg)
1547 if (__gm_phy_read(hw, port, reg, &v))
1548 printk(KERN_WARNING PFX "%s: phy read timeout\n",
1549 hw->dev[port]->name);
1553 /* Marvell Phy Initialization */
1554 static void yukon_init(struct skge_hw *hw, int port)
1556 struct skge_port *skge = netdev_priv(hw->dev[port]);
1557 u16 ctrl, ct1000, adv;
1559 if (skge->autoneg == AUTONEG_ENABLE) {
1560 u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
1562 ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK |
1563 PHY_M_EC_MAC_S_MSK);
1564 ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ);
1566 ectrl |= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1);
1568 gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl);
1571 ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
1572 if (skge->autoneg == AUTONEG_DISABLE)
1573 ctrl &= ~PHY_CT_ANE;
1575 ctrl |= PHY_CT_RESET;
1576 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
1582 if (skge->autoneg == AUTONEG_ENABLE) {
1584 if (skge->advertising & ADVERTISED_1000baseT_Full)
1585 ct1000 |= PHY_M_1000C_AFD;
1586 if (skge->advertising & ADVERTISED_1000baseT_Half)
1587 ct1000 |= PHY_M_1000C_AHD;
1588 if (skge->advertising & ADVERTISED_100baseT_Full)
1589 adv |= PHY_M_AN_100_FD;
1590 if (skge->advertising & ADVERTISED_100baseT_Half)
1591 adv |= PHY_M_AN_100_HD;
1592 if (skge->advertising & ADVERTISED_10baseT_Full)
1593 adv |= PHY_M_AN_10_FD;
1594 if (skge->advertising & ADVERTISED_10baseT_Half)
1595 adv |= PHY_M_AN_10_HD;
1596 } else /* special defines for FIBER (88E1011S only) */
1597 adv |= PHY_M_AN_1000X_AHD | PHY_M_AN_1000X_AFD;
1599 /* Set Flow-control capabilities */
1600 adv |= phy_pause_map[skge->flow_control];
1602 /* Restart Auto-negotiation */
1603 ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG;
1605 /* forced speed/duplex settings */
1606 ct1000 = PHY_M_1000C_MSE;
1608 if (skge->duplex == DUPLEX_FULL)
1609 ctrl |= PHY_CT_DUP_MD;
1611 switch (skge->speed) {
1613 ctrl |= PHY_CT_SP1000;
1616 ctrl |= PHY_CT_SP100;
1620 ctrl |= PHY_CT_RESET;
1623 gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000);
1625 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv);
1626 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
1628 /* Enable phy interrupt on autonegotiation complete (or link up) */
1629 if (skge->autoneg == AUTONEG_ENABLE)
1630 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_MSK);
1632 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK);
1635 static void yukon_reset(struct skge_hw *hw, int port)
1637 gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);/* disable PHY IRQs */
1638 gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */
1639 gma_write16(hw, port, GM_MC_ADDR_H2, 0);
1640 gma_write16(hw, port, GM_MC_ADDR_H3, 0);
1641 gma_write16(hw, port, GM_MC_ADDR_H4, 0);
1643 gma_write16(hw, port, GM_RX_CTRL,
1644 gma_read16(hw, port, GM_RX_CTRL)
1645 | GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
1648 /* Apparently, early versions of Yukon-Lite had wrong chip_id? */
1649 static int is_yukon_lite_a0(struct skge_hw *hw)
1654 if (hw->chip_id != CHIP_ID_YUKON)
1657 reg = skge_read32(hw, B2_FAR);
1658 skge_write8(hw, B2_FAR + 3, 0xff);
1659 ret = (skge_read8(hw, B2_FAR + 3) != 0);
1660 skge_write32(hw, B2_FAR, reg);
1664 static void yukon_mac_init(struct skge_hw *hw, int port)
1666 struct skge_port *skge = netdev_priv(hw->dev[port]);
1669 const u8 *addr = hw->dev[port]->dev_addr;
1671 /* WA code for COMA mode -- set PHY reset */
1672 if (hw->chip_id == CHIP_ID_YUKON_LITE &&
1673 hw->chip_rev >= CHIP_REV_YU_LITE_A3) {
1674 reg = skge_read32(hw, B2_GP_IO);
1675 reg |= GP_DIR_9 | GP_IO_9;
1676 skge_write32(hw, B2_GP_IO, reg);
1680 skge_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
1681 skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
1683 /* WA code for COMA mode -- clear PHY reset */
1684 if (hw->chip_id == CHIP_ID_YUKON_LITE &&
1685 hw->chip_rev >= CHIP_REV_YU_LITE_A3) {
1686 reg = skge_read32(hw, B2_GP_IO);
1689 skge_write32(hw, B2_GP_IO, reg);
1692 /* Set hardware config mode */
1693 reg = GPC_INT_POL_HI | GPC_DIS_FC | GPC_DIS_SLEEP |
1694 GPC_ENA_XC | GPC_ANEG_ADV_ALL_M | GPC_ENA_PAUSE;
1695 reg |= hw->copper ? GPC_HWCFG_GMII_COP : GPC_HWCFG_GMII_FIB;
1697 /* Clear GMC reset */
1698 skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_SET);
1699 skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_CLR);
1700 skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON | GMC_RST_CLR);
1702 if (skge->autoneg == AUTONEG_DISABLE) {
1703 reg = GM_GPCR_AU_ALL_DIS;
1704 gma_write16(hw, port, GM_GP_CTRL,
1705 gma_read16(hw, port, GM_GP_CTRL) | reg);
1707 switch (skge->speed) {
1709 reg &= ~GM_GPCR_SPEED_100;
1710 reg |= GM_GPCR_SPEED_1000;
1713 reg &= ~GM_GPCR_SPEED_1000;
1714 reg |= GM_GPCR_SPEED_100;
1717 reg &= ~(GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100);
1721 if (skge->duplex == DUPLEX_FULL)
1722 reg |= GM_GPCR_DUP_FULL;
1724 reg = GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100 | GM_GPCR_DUP_FULL;
1726 switch (skge->flow_control) {
1727 case FLOW_MODE_NONE:
1728 skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
1729 reg |= GM_GPCR_FC_TX_DIS | GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
1731 case FLOW_MODE_LOC_SEND:
1732 /* disable Rx flow-control */
1733 reg |= GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
1736 gma_write16(hw, port, GM_GP_CTRL, reg);
1737 skge_read16(hw, SK_REG(port, GMAC_IRQ_SRC));
1739 yukon_init(hw, port);
1742 reg = gma_read16(hw, port, GM_PHY_ADDR);
1743 gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR);
1745 for (i = 0; i < GM_MIB_CNT_SIZE; i++)
1746 gma_read16(hw, port, GM_MIB_CNT_BASE + 8*i);
1747 gma_write16(hw, port, GM_PHY_ADDR, reg);
1749 /* transmit control */
1750 gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF));
1752 /* receive control reg: unicast + multicast + no FCS */
1753 gma_write16(hw, port, GM_RX_CTRL,
1754 GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA);
1756 /* transmit flow control */
1757 gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff);
1759 /* transmit parameter */
1760 gma_write16(hw, port, GM_TX_PARAM,
1761 TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) |
1762 TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) |
1763 TX_IPG_JAM_DATA(TX_IPG_JAM_DEF));
1765 /* serial mode register */
1766 reg = GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);
1767 if (hw->dev[port]->mtu > 1500)
1768 reg |= GM_SMOD_JUMBO_ENA;
1770 gma_write16(hw, port, GM_SERIAL_MODE, reg);
1772 /* physical address: used for pause frames */
1773 gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr);
1774 /* virtual address for data */
1775 gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr);
1777 /* enable interrupt mask for counter overflows */
1778 gma_write16(hw, port, GM_TX_IRQ_MSK, 0);
1779 gma_write16(hw, port, GM_RX_IRQ_MSK, 0);
1780 gma_write16(hw, port, GM_TR_IRQ_MSK, 0);
1782 /* Initialize Mac Fifo */
1784 /* Configure Rx MAC FIFO */
1785 skge_write16(hw, SK_REG(port, RX_GMF_FL_MSK), RX_FF_FL_DEF_MSK);
1786 reg = GMF_OPER_ON | GMF_RX_F_FL_ON;
1788 /* disable Rx GMAC FIFO Flush for YUKON-Lite Rev. A0 only */
1789 if (is_yukon_lite_a0(hw))
1790 reg &= ~GMF_RX_F_FL_ON;
1792 skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
1793 skge_write16(hw, SK_REG(port, RX_GMF_CTRL_T), reg);
1795 * because Pause Packet Truncation in GMAC is not working
1796 * we have to increase the Flush Threshold to 64 bytes
1797 * in order to flush pause packets in Rx FIFO on Yukon-1
1799 skge_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF+1);
1801 /* Configure Tx MAC FIFO */
1802 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);
1803 skge_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);
1806 /* Go into power down mode */
1807 static void yukon_suspend(struct skge_hw *hw, int port)
1811 ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
1812 ctrl |= PHY_M_PC_POL_R_DIS;
1813 gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
1815 ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
1816 ctrl |= PHY_CT_RESET;
1817 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
1819 /* switch IEEE compatible power down mode on */
1820 ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
1821 ctrl |= PHY_CT_PDOWN;
1822 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
1825 static void yukon_stop(struct skge_port *skge)
1827 struct skge_hw *hw = skge->hw;
1828 int port = skge->port;
1830 skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0);
1831 yukon_reset(hw, port);
1833 gma_write16(hw, port, GM_GP_CTRL,
1834 gma_read16(hw, port, GM_GP_CTRL)
1835 & ~(GM_GPCR_TX_ENA|GM_GPCR_RX_ENA));
1836 gma_read16(hw, port, GM_GP_CTRL);
1838 yukon_suspend(hw, port);
1840 /* set GPHY Control reset */
1841 skge_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
1842 skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
1845 static void yukon_get_stats(struct skge_port *skge, u64 *data)
1847 struct skge_hw *hw = skge->hw;
1848 int port = skge->port;
1851 data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32
1852 | gma_read32(hw, port, GM_TXO_OK_LO);
1853 data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32
1854 | gma_read32(hw, port, GM_RXO_OK_LO);
1856 for (i = 2; i < ARRAY_SIZE(skge_stats); i++)
1857 data[i] = gma_read32(hw, port,
1858 skge_stats[i].gma_offset);
1861 static void yukon_mac_intr(struct skge_hw *hw, int port)
1863 struct net_device *dev = hw->dev[port];
1864 struct skge_port *skge = netdev_priv(dev);
1865 u8 status = skge_read8(hw, SK_REG(port, GMAC_IRQ_SRC));
1867 if (netif_msg_intr(skge))
1868 printk(KERN_DEBUG PFX "%s: mac interrupt status 0x%x\n",
1871 if (status & GM_IS_RX_FF_OR) {
1872 ++skge->net_stats.rx_fifo_errors;
1873 skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO);
1876 if (status & GM_IS_TX_FF_UR) {
1877 ++skge->net_stats.tx_fifo_errors;
1878 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU);
1883 static u16 yukon_speed(const struct skge_hw *hw, u16 aux)
1885 switch (aux & PHY_M_PS_SPEED_MSK) {
1886 case PHY_M_PS_SPEED_1000:
1888 case PHY_M_PS_SPEED_100:
1895 static void yukon_link_up(struct skge_port *skge)
1897 struct skge_hw *hw = skge->hw;
1898 int port = skge->port;
1901 /* Enable Transmit FIFO Underrun */
1902 skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK);
1904 reg = gma_read16(hw, port, GM_GP_CTRL);
1905 if (skge->duplex == DUPLEX_FULL || skge->autoneg == AUTONEG_ENABLE)
1906 reg |= GM_GPCR_DUP_FULL;
1909 reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA;
1910 gma_write16(hw, port, GM_GP_CTRL, reg);
1912 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK);
1916 static void yukon_link_down(struct skge_port *skge)
1918 struct skge_hw *hw = skge->hw;
1919 int port = skge->port;
1922 gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);
1924 ctrl = gma_read16(hw, port, GM_GP_CTRL);
1925 ctrl &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA);
1926 gma_write16(hw, port, GM_GP_CTRL, ctrl);
1928 if (skge->flow_control == FLOW_MODE_REM_SEND) {
1929 /* restore Asymmetric Pause bit */
1930 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV,
1931 gm_phy_read(hw, port,
1937 skge_link_down(skge);
1939 yukon_init(hw, port);
1942 static void yukon_phy_intr(struct skge_port *skge)
1944 struct skge_hw *hw = skge->hw;
1945 int port = skge->port;
1946 const char *reason = NULL;
1947 u16 istatus, phystat;
1949 istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT);
1950 phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT);
1952 if (netif_msg_intr(skge))
1953 printk(KERN_DEBUG PFX "%s: phy interrupt status 0x%x 0x%x\n",
1954 skge->netdev->name, istatus, phystat);
1956 if (istatus & PHY_M_IS_AN_COMPL) {
1957 if (gm_phy_read(hw, port, PHY_MARV_AUNE_LP)
1959 reason = "remote fault";
1963 if (gm_phy_read(hw, port, PHY_MARV_1000T_STAT) & PHY_B_1000S_MSF) {
1964 reason = "master/slave fault";
1968 if (!(phystat & PHY_M_PS_SPDUP_RES)) {
1969 reason = "speed/duplex";
1973 skge->duplex = (phystat & PHY_M_PS_FULL_DUP)
1974 ? DUPLEX_FULL : DUPLEX_HALF;
1975 skge->speed = yukon_speed(hw, phystat);
1977 /* We are using IEEE 802.3z/D5.0 Table 37-4 */
1978 switch (phystat & PHY_M_PS_PAUSE_MSK) {
1979 case PHY_M_PS_PAUSE_MSK:
1980 skge->flow_control = FLOW_MODE_SYMMETRIC;
1982 case PHY_M_PS_RX_P_EN:
1983 skge->flow_control = FLOW_MODE_REM_SEND;
1985 case PHY_M_PS_TX_P_EN:
1986 skge->flow_control = FLOW_MODE_LOC_SEND;
1989 skge->flow_control = FLOW_MODE_NONE;
1992 if (skge->flow_control == FLOW_MODE_NONE ||
1993 (skge->speed < SPEED_1000 && skge->duplex == DUPLEX_HALF))
1994 skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
1996 skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
1997 yukon_link_up(skge);
2001 if (istatus & PHY_M_IS_LSP_CHANGE)
2002 skge->speed = yukon_speed(hw, phystat);
2004 if (istatus & PHY_M_IS_DUP_CHANGE)
2005 skge->duplex = (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
2006 if (istatus & PHY_M_IS_LST_CHANGE) {
2007 if (phystat & PHY_M_PS_LINK_UP)
2008 yukon_link_up(skge);
2010 yukon_link_down(skge);
2014 printk(KERN_ERR PFX "%s: autonegotiation failed (%s)\n",
2015 skge->netdev->name, reason);
2017 /* XXX restart autonegotiation? */
2020 static void skge_phy_reset(struct skge_port *skge)
2022 struct skge_hw *hw = skge->hw;
2023 int port = skge->port;
2025 netif_stop_queue(skge->netdev);
2026 netif_carrier_off(skge->netdev);
2028 spin_lock_bh(&hw->phy_lock);
2029 if (hw->chip_id == CHIP_ID_GENESIS)
2030 genesis_mac_init(hw, port);
2032 yukon_init(hw, port);
2033 spin_unlock_bh(&hw->phy_lock);
2036 /* Basic MII support */
2037 static int skge_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2039 struct mii_ioctl_data *data = if_mii(ifr);
2040 struct skge_port *skge = netdev_priv(dev);
2041 struct skge_hw *hw = skge->hw;
2042 int err = -EOPNOTSUPP;
2044 if (!netif_running(dev))
2045 return -ENODEV; /* Phy still in reset */
2049 data->phy_id = hw->phy_addr;
2054 spin_lock_bh(&hw->phy_lock);
2055 if (hw->chip_id == CHIP_ID_GENESIS)
2056 err = __xm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val);
2058 err = __gm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val);
2059 spin_unlock_bh(&hw->phy_lock);
2060 data->val_out = val;
2065 if (!capable(CAP_NET_ADMIN))
2068 spin_lock_bh(&hw->phy_lock);
2069 if (hw->chip_id == CHIP_ID_GENESIS)
2070 err = xm_phy_write(hw, skge->port, data->reg_num & 0x1f,
2073 err = gm_phy_write(hw, skge->port, data->reg_num & 0x1f,
2075 spin_unlock_bh(&hw->phy_lock);
2081 static void skge_ramset(struct skge_hw *hw, u16 q, u32 start, size_t len)
2087 end = start + len - 1;
2089 skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR);
2090 skge_write32(hw, RB_ADDR(q, RB_START), start);
2091 skge_write32(hw, RB_ADDR(q, RB_WP), start);
2092 skge_write32(hw, RB_ADDR(q, RB_RP), start);
2093 skge_write32(hw, RB_ADDR(q, RB_END), end);
2095 if (q == Q_R1 || q == Q_R2) {
2096 /* Set thresholds on receive queue's */
2097 skge_write32(hw, RB_ADDR(q, RB_RX_UTPP),
2099 skge_write32(hw, RB_ADDR(q, RB_RX_LTPP),
2102 /* Enable store & forward on Tx queue's because
2103 * Tx FIFO is only 4K on Genesis and 1K on Yukon
2105 skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD);
2108 skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD);
2111 /* Setup Bus Memory Interface */
2112 static void skge_qset(struct skge_port *skge, u16 q,
2113 const struct skge_element *e)
2115 struct skge_hw *hw = skge->hw;
2116 u32 watermark = 0x600;
2117 u64 base = skge->dma + (e->desc - skge->mem);
2119 /* optimization to reduce window on 32bit/33mhz */
2120 if ((skge_read16(hw, B0_CTST) & (CS_BUS_CLOCK | CS_BUS_SLOT_SZ)) == 0)
2123 skge_write32(hw, Q_ADDR(q, Q_CSR), CSR_CLR_RESET);
2124 skge_write32(hw, Q_ADDR(q, Q_F), watermark);
2125 skge_write32(hw, Q_ADDR(q, Q_DA_H), (u32)(base >> 32));
2126 skge_write32(hw, Q_ADDR(q, Q_DA_L), (u32)base);
2129 static int skge_up(struct net_device *dev)
2131 struct skge_port *skge = netdev_priv(dev);
2132 struct skge_hw *hw = skge->hw;
2133 int port = skge->port;
2134 u32 chunk, ram_addr;
2135 size_t rx_size, tx_size;
2138 if (netif_msg_ifup(skge))
2139 printk(KERN_INFO PFX "%s: enabling interface\n", dev->name);
2141 if (dev->mtu > RX_BUF_SIZE)
2142 skge->rx_buf_size = dev->mtu + ETH_HLEN + NET_IP_ALIGN;
2144 skge->rx_buf_size = RX_BUF_SIZE;
2147 rx_size = skge->rx_ring.count * sizeof(struct skge_rx_desc);
2148 tx_size = skge->tx_ring.count * sizeof(struct skge_tx_desc);
2149 skge->mem_size = tx_size + rx_size;
2150 skge->mem = pci_alloc_consistent(hw->pdev, skge->mem_size, &skge->dma);
2154 memset(skge->mem, 0, skge->mem_size);
2156 if ((err = skge_ring_alloc(&skge->rx_ring, skge->mem, skge->dma)))
2159 err = skge_rx_fill(skge);
2163 if ((err = skge_ring_alloc(&skge->tx_ring, skge->mem + rx_size,
2164 skge->dma + rx_size)))
2167 skge->tx_avail = skge->tx_ring.count - 1;
2169 /* Enable IRQ from port */
2170 hw->intr_mask |= portirqmask[port];
2171 skge_write32(hw, B0_IMSK, hw->intr_mask);
2173 /* Initialize MAC */
2174 spin_lock_bh(&hw->phy_lock);
2175 if (hw->chip_id == CHIP_ID_GENESIS)
2176 genesis_mac_init(hw, port);
2178 yukon_mac_init(hw, port);
2179 spin_unlock_bh(&hw->phy_lock);
2181 /* Configure RAMbuffers */
2182 chunk = hw->ram_size / ((hw->ports + 1)*2);
2183 ram_addr = hw->ram_offset + 2 * chunk * port;
2185 skge_ramset(hw, rxqaddr[port], ram_addr, chunk);
2186 skge_qset(skge, rxqaddr[port], skge->rx_ring.to_clean);
2188 BUG_ON(skge->tx_ring.to_use != skge->tx_ring.to_clean);
2189 skge_ramset(hw, txqaddr[port], ram_addr+chunk, chunk);
2190 skge_qset(skge, txqaddr[port], skge->tx_ring.to_use);
2192 /* Start receiver BMU */
2194 skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_START | CSR_IRQ_CL_F);
2195 skge_led(skge, LED_MODE_ON);
2200 skge_rx_clean(skge);
2201 kfree(skge->rx_ring.start);
2203 pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma);
2209 static int skge_down(struct net_device *dev)
2211 struct skge_port *skge = netdev_priv(dev);
2212 struct skge_hw *hw = skge->hw;
2213 int port = skge->port;
2215 if (skge->mem == NULL)
2218 if (netif_msg_ifdown(skge))
2219 printk(KERN_INFO PFX "%s: disabling interface\n", dev->name);
2221 netif_stop_queue(dev);
2223 skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF);
2224 if (hw->chip_id == CHIP_ID_GENESIS)
2229 hw->intr_mask &= ~portirqmask[skge->port];
2230 skge_write32(hw, B0_IMSK, hw->intr_mask);
2232 /* Stop transmitter */
2233 skge_write8(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_STOP);
2234 skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL),
2235 RB_RST_SET|RB_DIS_OP_MD);
2238 /* Disable Force Sync bit and Enable Alloc bit */
2239 skge_write8(hw, SK_REG(port, TXA_CTRL),
2240 TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC);
2242 /* Stop Interval Timer and Limit Counter of Tx Arbiter */
2243 skge_write32(hw, SK_REG(port, TXA_ITI_INI), 0L);
2244 skge_write32(hw, SK_REG(port, TXA_LIM_INI), 0L);
2246 /* Reset PCI FIFO */
2247 skge_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_SET_RESET);
2248 skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET);
2250 /* Reset the RAM Buffer async Tx queue */
2251 skge_write8(hw, RB_ADDR(port == 0 ? Q_XA1 : Q_XA2, RB_CTRL), RB_RST_SET);
2253 skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_STOP);
2254 skge_write32(hw, RB_ADDR(port ? Q_R2 : Q_R1, RB_CTRL),
2255 RB_RST_SET|RB_DIS_OP_MD);
2256 skge_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_SET_RESET);
2258 if (hw->chip_id == CHIP_ID_GENESIS) {
2259 skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_SET);
2260 skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_SET);
2262 skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
2263 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET);
2266 skge_led(skge, LED_MODE_OFF);
2268 skge_tx_clean(skge);
2269 skge_rx_clean(skge);
2271 kfree(skge->rx_ring.start);
2272 kfree(skge->tx_ring.start);
2273 pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma);
2278 static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev)
2280 struct skge_port *skge = netdev_priv(dev);
2281 struct skge_hw *hw = skge->hw;
2282 struct skge_ring *ring = &skge->tx_ring;
2283 struct skge_element *e;
2284 struct skge_tx_desc *td;
2288 unsigned long flags;
2290 skb = skb_padto(skb, ETH_ZLEN);
2292 return NETDEV_TX_OK;
2294 local_irq_save(flags);
2295 if (!spin_trylock(&skge->tx_lock)) {
2296 /* Collision - tell upper layer to requeue */
2297 local_irq_restore(flags);
2298 return NETDEV_TX_LOCKED;
2301 if (unlikely(skge->tx_avail < skb_shinfo(skb)->nr_frags +1)) {
2302 if (!netif_queue_stopped(dev)) {
2303 netif_stop_queue(dev);
2305 printk(KERN_WARNING PFX "%s: ring full when queue awake!\n",
2308 spin_unlock_irqrestore(&skge->tx_lock, flags);
2309 return NETDEV_TX_BUSY;
2315 len = skb_headlen(skb);
2316 map = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE);
2317 pci_unmap_addr_set(e, mapaddr, map);
2318 pci_unmap_len_set(e, maplen, len);
2321 td->dma_hi = map >> 32;
2323 if (skb->ip_summed == CHECKSUM_HW) {
2324 int offset = skb->h.raw - skb->data;
2326 /* This seems backwards, but it is what the sk98lin
2327 * does. Looks like hardware is wrong?
2329 if (skb->h.ipiph->protocol == IPPROTO_UDP
2330 && hw->chip_rev == 0 && hw->chip_id == CHIP_ID_YUKON)
2331 control = BMU_TCP_CHECK;
2333 control = BMU_UDP_CHECK;
2336 td->csum_start = offset;
2337 td->csum_write = offset + skb->csum;
2339 control = BMU_CHECK;
2341 if (!skb_shinfo(skb)->nr_frags) /* single buffer i.e. no fragments */
2342 control |= BMU_EOF| BMU_IRQ_EOF;
2344 struct skge_tx_desc *tf = td;
2346 control |= BMU_STFWD;
2347 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
2348 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2350 map = pci_map_page(hw->pdev, frag->page, frag->page_offset,
2351 frag->size, PCI_DMA_TODEVICE);
2357 tf->dma_hi = (u64) map >> 32;
2358 pci_unmap_addr_set(e, mapaddr, map);
2359 pci_unmap_len_set(e, maplen, frag->size);
2361 tf->control = BMU_OWN | BMU_SW | control | frag->size;
2363 tf->control |= BMU_EOF | BMU_IRQ_EOF;
2365 /* Make sure all the descriptors written */
2367 td->control = BMU_OWN | BMU_SW | BMU_STF | control | len;
2370 skge_write8(hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_START);
2372 if (netif_msg_tx_queued(skge))
2373 printk(KERN_DEBUG "%s: tx queued, slot %td, len %d\n",
2374 dev->name, e - ring->start, skb->len);
2376 ring->to_use = e->next;
2377 skge->tx_avail -= skb_shinfo(skb)->nr_frags + 1;
2378 if (skge->tx_avail <= MAX_SKB_FRAGS + 1) {
2379 pr_debug("%s: transmit queue full\n", dev->name);
2380 netif_stop_queue(dev);
2383 dev->trans_start = jiffies;
2384 spin_unlock_irqrestore(&skge->tx_lock, flags);
2386 return NETDEV_TX_OK;
2389 static inline void skge_tx_free(struct skge_hw *hw, struct skge_element *e)
2391 /* This ring element can be skb or fragment */
2393 pci_unmap_single(hw->pdev,
2394 pci_unmap_addr(e, mapaddr),
2395 pci_unmap_len(e, maplen),
2397 dev_kfree_skb_any(e->skb);
2400 pci_unmap_page(hw->pdev,
2401 pci_unmap_addr(e, mapaddr),
2402 pci_unmap_len(e, maplen),
2407 static void skge_tx_clean(struct skge_port *skge)
2409 struct skge_ring *ring = &skge->tx_ring;
2410 struct skge_element *e;
2411 unsigned long flags;
2413 spin_lock_irqsave(&skge->tx_lock, flags);
2414 for (e = ring->to_clean; e != ring->to_use; e = e->next) {
2416 skge_tx_free(skge->hw, e);
2419 spin_unlock_irqrestore(&skge->tx_lock, flags);
2422 static void skge_tx_timeout(struct net_device *dev)
2424 struct skge_port *skge = netdev_priv(dev);
2426 if (netif_msg_timer(skge))
2427 printk(KERN_DEBUG PFX "%s: tx timeout\n", dev->name);
2429 skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_STOP);
2430 skge_tx_clean(skge);
2433 static int skge_change_mtu(struct net_device *dev, int new_mtu)
2437 if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
2440 if (!netif_running(dev)) {
2456 static void genesis_set_multicast(struct net_device *dev)
2458 struct skge_port *skge = netdev_priv(dev);
2459 struct skge_hw *hw = skge->hw;
2460 int port = skge->port;
2461 int i, count = dev->mc_count;
2462 struct dev_mc_list *list = dev->mc_list;
2466 mode = xm_read32(hw, port, XM_MODE);
2467 mode |= XM_MD_ENA_HASH;
2468 if (dev->flags & IFF_PROMISC)
2469 mode |= XM_MD_ENA_PROM;
2471 mode &= ~XM_MD_ENA_PROM;
2473 if (dev->flags & IFF_ALLMULTI)
2474 memset(filter, 0xff, sizeof(filter));
2476 memset(filter, 0, sizeof(filter));
2477 for (i = 0; list && i < count; i++, list = list->next) {
2479 crc = ether_crc_le(ETH_ALEN, list->dmi_addr);
2481 filter[bit/8] |= 1 << (bit%8);
2485 xm_write32(hw, port, XM_MODE, mode);
2486 xm_outhash(hw, port, XM_HSM, filter);
2489 static void yukon_set_multicast(struct net_device *dev)
2491 struct skge_port *skge = netdev_priv(dev);
2492 struct skge_hw *hw = skge->hw;
2493 int port = skge->port;
2494 struct dev_mc_list *list = dev->mc_list;
2498 memset(filter, 0, sizeof(filter));
2500 reg = gma_read16(hw, port, GM_RX_CTRL);
2501 reg |= GM_RXCR_UCF_ENA;
2503 if (dev->flags & IFF_PROMISC) /* promiscuous */
2504 reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
2505 else if (dev->flags & IFF_ALLMULTI) /* all multicast */
2506 memset(filter, 0xff, sizeof(filter));
2507 else if (dev->mc_count == 0) /* no multicast */
2508 reg &= ~GM_RXCR_MCF_ENA;
2511 reg |= GM_RXCR_MCF_ENA;
2513 for (i = 0; list && i < dev->mc_count; i++, list = list->next) {
2514 u32 bit = ether_crc(ETH_ALEN, list->dmi_addr) & 0x3f;
2515 filter[bit/8] |= 1 << (bit%8);
2520 gma_write16(hw, port, GM_MC_ADDR_H1,
2521 (u16)filter[0] | ((u16)filter[1] << 8));
2522 gma_write16(hw, port, GM_MC_ADDR_H2,
2523 (u16)filter[2] | ((u16)filter[3] << 8));
2524 gma_write16(hw, port, GM_MC_ADDR_H3,
2525 (u16)filter[4] | ((u16)filter[5] << 8));
2526 gma_write16(hw, port, GM_MC_ADDR_H4,
2527 (u16)filter[6] | ((u16)filter[7] << 8));
2529 gma_write16(hw, port, GM_RX_CTRL, reg);
2532 static inline u16 phy_length(const struct skge_hw *hw, u32 status)
2534 if (hw->chip_id == CHIP_ID_GENESIS)
2535 return status >> XMR_FS_LEN_SHIFT;
2537 return status >> GMR_FS_LEN_SHIFT;
2540 static inline int bad_phy_status(const struct skge_hw *hw, u32 status)
2542 if (hw->chip_id == CHIP_ID_GENESIS)
2543 return (status & (XMR_FS_ERR | XMR_FS_2L_VLAN)) != 0;
2545 return (status & GMR_FS_ANY_ERR) ||
2546 (status & GMR_FS_RX_OK) == 0;
2550 /* Get receive buffer from descriptor.
2551 * Handles copy of small buffers and reallocation failures
2553 static inline struct sk_buff *skge_rx_get(struct skge_port *skge,
2554 struct skge_element *e,
2555 u32 control, u32 status, u16 csum)
2557 struct sk_buff *skb;
2558 u16 len = control & BMU_BBC;
2560 if (unlikely(netif_msg_rx_status(skge)))
2561 printk(KERN_DEBUG PFX "%s: rx slot %td status 0x%x len %d\n",
2562 skge->netdev->name, e - skge->rx_ring.start,
2565 if (len > skge->rx_buf_size)
2568 if ((control & (BMU_EOF|BMU_STF)) != (BMU_STF|BMU_EOF))
2571 if (bad_phy_status(skge->hw, status))
2574 if (phy_length(skge->hw, status) != len)
2577 if (len < RX_COPY_THRESHOLD) {
2578 skb = dev_alloc_skb(len + 2);
2582 skb_reserve(skb, 2);
2583 pci_dma_sync_single_for_cpu(skge->hw->pdev,
2584 pci_unmap_addr(e, mapaddr),
2585 len, PCI_DMA_FROMDEVICE);
2586 memcpy(skb->data, e->skb->data, len);
2587 pci_dma_sync_single_for_device(skge->hw->pdev,
2588 pci_unmap_addr(e, mapaddr),
2589 len, PCI_DMA_FROMDEVICE);
2590 skge_rx_reuse(e, skge->rx_buf_size);
2592 struct sk_buff *nskb;
2593 nskb = dev_alloc_skb(skge->rx_buf_size + NET_IP_ALIGN);
2597 pci_unmap_single(skge->hw->pdev,
2598 pci_unmap_addr(e, mapaddr),
2599 pci_unmap_len(e, maplen),
2600 PCI_DMA_FROMDEVICE);
2602 prefetch(skb->data);
2603 skge_rx_setup(skge, e, nskb, skge->rx_buf_size);
2607 skb->dev = skge->netdev;
2608 if (skge->rx_csum) {
2610 skb->ip_summed = CHECKSUM_HW;
2613 skb->protocol = eth_type_trans(skb, skge->netdev);
2618 if (netif_msg_rx_err(skge))
2619 printk(KERN_DEBUG PFX "%s: rx err, slot %td control 0x%x status 0x%x\n",
2620 skge->netdev->name, e - skge->rx_ring.start,
2623 if (skge->hw->chip_id == CHIP_ID_GENESIS) {
2624 if (status & (XMR_FS_RUNT|XMR_FS_LNG_ERR))
2625 skge->net_stats.rx_length_errors++;
2626 if (status & XMR_FS_FRA_ERR)
2627 skge->net_stats.rx_frame_errors++;
2628 if (status & XMR_FS_FCS_ERR)
2629 skge->net_stats.rx_crc_errors++;
2631 if (status & (GMR_FS_LONG_ERR|GMR_FS_UN_SIZE))
2632 skge->net_stats.rx_length_errors++;
2633 if (status & GMR_FS_FRAGMENT)
2634 skge->net_stats.rx_frame_errors++;
2635 if (status & GMR_FS_CRC_ERR)
2636 skge->net_stats.rx_crc_errors++;
2640 skge_rx_reuse(e, skge->rx_buf_size);
2645 static int skge_poll(struct net_device *dev, int *budget)
2647 struct skge_port *skge = netdev_priv(dev);
2648 struct skge_hw *hw = skge->hw;
2649 struct skge_ring *ring = &skge->rx_ring;
2650 struct skge_element *e;
2651 unsigned int to_do = min(dev->quota, *budget);
2652 unsigned int work_done = 0;
2654 for (e = ring->to_clean; prefetch(e->next), work_done < to_do; e = e->next) {
2655 struct skge_rx_desc *rd = e->desc;
2656 struct sk_buff *skb;
2660 control = rd->control;
2661 if (control & BMU_OWN)
2664 skb = skge_rx_get(skge, e, control, rd->status,
2665 le16_to_cpu(rd->csum2));
2667 dev->last_rx = jiffies;
2668 netif_receive_skb(skb);
2672 skge_rx_reuse(e, skge->rx_buf_size);
2676 /* restart receiver */
2678 skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR),
2679 CSR_START | CSR_IRQ_CL_F);
2681 *budget -= work_done;
2682 dev->quota -= work_done;
2684 if (work_done >= to_do)
2685 return 1; /* not done */
2687 netif_rx_complete(dev);
2688 hw->intr_mask |= portirqmask[skge->port];
2689 skge_write32(hw, B0_IMSK, hw->intr_mask);
2690 skge_read32(hw, B0_IMSK);
2695 static inline void skge_tx_intr(struct net_device *dev)
2697 struct skge_port *skge = netdev_priv(dev);
2698 struct skge_hw *hw = skge->hw;
2699 struct skge_ring *ring = &skge->tx_ring;
2700 struct skge_element *e;
2702 spin_lock(&skge->tx_lock);
2703 for (e = ring->to_clean; prefetch(e->next), e != ring->to_use; e = e->next) {
2704 struct skge_tx_desc *td = e->desc;
2708 control = td->control;
2709 if (control & BMU_OWN)
2712 if (unlikely(netif_msg_tx_done(skge)))
2713 printk(KERN_DEBUG PFX "%s: tx done slot %td status 0x%x\n",
2714 dev->name, e - ring->start, td->status);
2716 skge_tx_free(hw, e);
2721 skge_write8(hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F);
2723 if (skge->tx_avail > MAX_SKB_FRAGS + 1)
2724 netif_wake_queue(dev);
2726 spin_unlock(&skge->tx_lock);
2729 /* Parity errors seem to happen when Genesis is connected to a switch
2730 * with no other ports present. Heartbeat error??
2732 static void skge_mac_parity(struct skge_hw *hw, int port)
2734 struct net_device *dev = hw->dev[port];
2737 struct skge_port *skge = netdev_priv(dev);
2738 ++skge->net_stats.tx_heartbeat_errors;
2741 if (hw->chip_id == CHIP_ID_GENESIS)
2742 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1),
2745 /* HW-Bug #8: cleared by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE */
2746 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T),
2747 (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0)
2748 ? GMF_CLI_TX_FC : GMF_CLI_TX_PE);
2751 static void skge_pci_clear(struct skge_hw *hw)
2755 pci_read_config_word(hw->pdev, PCI_STATUS, &status);
2756 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
2757 pci_write_config_word(hw->pdev, PCI_STATUS,
2758 status | PCI_STATUS_ERROR_BITS);
2759 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
2762 static void skge_mac_intr(struct skge_hw *hw, int port)
2764 if (hw->chip_id == CHIP_ID_GENESIS)
2765 genesis_mac_intr(hw, port);
2767 yukon_mac_intr(hw, port);
2770 /* Handle device specific framing and timeout interrupts */
2771 static void skge_error_irq(struct skge_hw *hw)
2773 u32 hwstatus = skge_read32(hw, B0_HWE_ISRC);
2775 if (hw->chip_id == CHIP_ID_GENESIS) {
2776 /* clear xmac errors */
2777 if (hwstatus & (IS_NO_STAT_M1|IS_NO_TIST_M1))
2778 skge_write16(hw, RX_MFF_CTRL1, MFF_CLR_INSTAT);
2779 if (hwstatus & (IS_NO_STAT_M2|IS_NO_TIST_M2))
2780 skge_write16(hw, RX_MFF_CTRL2, MFF_CLR_INSTAT);
2782 /* Timestamp (unused) overflow */
2783 if (hwstatus & IS_IRQ_TIST_OV)
2784 skge_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
2787 if (hwstatus & IS_RAM_RD_PAR) {
2788 printk(KERN_ERR PFX "Ram read data parity error\n");
2789 skge_write16(hw, B3_RI_CTRL, RI_CLR_RD_PERR);
2792 if (hwstatus & IS_RAM_WR_PAR) {
2793 printk(KERN_ERR PFX "Ram write data parity error\n");
2794 skge_write16(hw, B3_RI_CTRL, RI_CLR_WR_PERR);
2797 if (hwstatus & IS_M1_PAR_ERR)
2798 skge_mac_parity(hw, 0);
2800 if (hwstatus & IS_M2_PAR_ERR)
2801 skge_mac_parity(hw, 1);
2803 if (hwstatus & IS_R1_PAR_ERR)
2804 skge_write32(hw, B0_R1_CSR, CSR_IRQ_CL_P);
2806 if (hwstatus & IS_R2_PAR_ERR)
2807 skge_write32(hw, B0_R2_CSR, CSR_IRQ_CL_P);
2809 if (hwstatus & (IS_IRQ_MST_ERR|IS_IRQ_STAT)) {
2810 printk(KERN_ERR PFX "hardware error detected (status 0x%x)\n",
2815 /* if error still set then just ignore it */
2816 hwstatus = skge_read32(hw, B0_HWE_ISRC);
2817 if (hwstatus & IS_IRQ_STAT) {
2818 pr_debug("IRQ status %x: still set ignoring hardware errors\n",
2820 hw->intr_mask &= ~IS_HW_ERR;
2826 * Interrupt from PHY are handled in tasklet (soft irq)
2827 * because accessing phy registers requires spin wait which might
2828 * cause excess interrupt latency.
2830 static void skge_extirq(unsigned long data)
2832 struct skge_hw *hw = (struct skge_hw *) data;
2835 spin_lock(&hw->phy_lock);
2836 for (port = 0; port < 2; port++) {
2837 struct net_device *dev = hw->dev[port];
2839 if (dev && netif_running(dev)) {
2840 struct skge_port *skge = netdev_priv(dev);
2842 if (hw->chip_id != CHIP_ID_GENESIS)
2843 yukon_phy_intr(skge);
2845 bcom_phy_intr(skge);
2848 spin_unlock(&hw->phy_lock);
2850 local_irq_disable();
2851 hw->intr_mask |= IS_EXT_REG;
2852 skge_write32(hw, B0_IMSK, hw->intr_mask);
2856 static inline void skge_wakeup(struct net_device *dev)
2858 struct skge_port *skge = netdev_priv(dev);
2860 prefetch(skge->rx_ring.to_clean);
2861 netif_rx_schedule(dev);
2864 static irqreturn_t skge_intr(int irq, void *dev_id, struct pt_regs *regs)
2866 struct skge_hw *hw = dev_id;
2867 u32 status = skge_read32(hw, B0_SP_ISRC);
2869 if (status == 0 || status == ~0) /* hotplug or shared irq */
2872 status &= hw->intr_mask;
2873 if (status & IS_R1_F) {
2874 hw->intr_mask &= ~IS_R1_F;
2875 skge_wakeup(hw->dev[0]);
2878 if (status & IS_R2_F) {
2879 hw->intr_mask &= ~IS_R2_F;
2880 skge_wakeup(hw->dev[1]);
2883 if (status & IS_XA1_F)
2884 skge_tx_intr(hw->dev[0]);
2886 if (status & IS_XA2_F)
2887 skge_tx_intr(hw->dev[1]);
2889 if (status & IS_PA_TO_RX1) {
2890 struct skge_port *skge = netdev_priv(hw->dev[0]);
2891 ++skge->net_stats.rx_over_errors;
2892 skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX1);
2895 if (status & IS_PA_TO_RX2) {
2896 struct skge_port *skge = netdev_priv(hw->dev[1]);
2897 ++skge->net_stats.rx_over_errors;
2898 skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX2);
2901 if (status & IS_PA_TO_TX1)
2902 skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX1);
2904 if (status & IS_PA_TO_TX2)
2905 skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX2);
2907 if (status & IS_MAC1)
2908 skge_mac_intr(hw, 0);
2910 if (status & IS_MAC2)
2911 skge_mac_intr(hw, 1);
2913 if (status & IS_HW_ERR)
2916 if (status & IS_EXT_REG) {
2917 hw->intr_mask &= ~IS_EXT_REG;
2918 tasklet_schedule(&hw->ext_tasklet);
2921 skge_write32(hw, B0_IMSK, hw->intr_mask);
2926 #ifdef CONFIG_NET_POLL_CONTROLLER
2927 static void skge_netpoll(struct net_device *dev)
2929 struct skge_port *skge = netdev_priv(dev);
2931 disable_irq(dev->irq);
2932 skge_intr(dev->irq, skge->hw, NULL);
2933 enable_irq(dev->irq);
2937 static int skge_set_mac_address(struct net_device *dev, void *p)
2939 struct skge_port *skge = netdev_priv(dev);
2940 struct skge_hw *hw = skge->hw;
2941 unsigned port = skge->port;
2942 const struct sockaddr *addr = p;
2944 if (!is_valid_ether_addr(addr->sa_data))
2945 return -EADDRNOTAVAIL;
2947 spin_lock_bh(&hw->phy_lock);
2948 memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
2949 memcpy_toio(hw->regs + B2_MAC_1 + port*8,
2950 dev->dev_addr, ETH_ALEN);
2951 memcpy_toio(hw->regs + B2_MAC_2 + port*8,
2952 dev->dev_addr, ETH_ALEN);
2954 if (hw->chip_id == CHIP_ID_GENESIS)
2955 xm_outaddr(hw, port, XM_SA, dev->dev_addr);
2957 gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr);
2958 gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr);
2960 spin_unlock_bh(&hw->phy_lock);
2965 static const struct {
2969 { CHIP_ID_GENESIS, "Genesis" },
2970 { CHIP_ID_YUKON, "Yukon" },
2971 { CHIP_ID_YUKON_LITE, "Yukon-Lite"},
2972 { CHIP_ID_YUKON_LP, "Yukon-LP"},
2975 static const char *skge_board_name(const struct skge_hw *hw)
2978 static char buf[16];
2980 for (i = 0; i < ARRAY_SIZE(skge_chips); i++)
2981 if (skge_chips[i].id == hw->chip_id)
2982 return skge_chips[i].name;
2984 snprintf(buf, sizeof buf, "chipid 0x%x", hw->chip_id);
2990 * Setup the board data structure, but don't bring up
2993 static int skge_reset(struct skge_hw *hw)
2997 u8 t8, mac_cfg, pmd_type, phy_type;
3000 ctst = skge_read16(hw, B0_CTST);
3003 skge_write8(hw, B0_CTST, CS_RST_SET);
3004 skge_write8(hw, B0_CTST, CS_RST_CLR);
3006 /* clear PCI errors, if any */
3009 skge_write8(hw, B0_CTST, CS_MRST_CLR);
3011 /* restore CLK_RUN bits (for Yukon-Lite) */
3012 skge_write16(hw, B0_CTST,
3013 ctst & (CS_CLK_RUN_HOT|CS_CLK_RUN_RST|CS_CLK_RUN_ENA));
3015 hw->chip_id = skge_read8(hw, B2_CHIP_ID);
3016 phy_type = skge_read8(hw, B2_E_1) & 0xf;
3017 pmd_type = skge_read8(hw, B2_PMD_TYP);
3018 hw->copper = (pmd_type == 'T' || pmd_type == '1');
3020 switch (hw->chip_id) {
3021 case CHIP_ID_GENESIS:
3024 hw->phy_addr = PHY_ADDR_BCOM;
3027 printk(KERN_ERR PFX "%s: unsupported phy type 0x%x\n",
3028 pci_name(hw->pdev), phy_type);
3034 case CHIP_ID_YUKON_LITE:
3035 case CHIP_ID_YUKON_LP:
3036 if (phy_type < SK_PHY_MARV_COPPER && pmd_type != 'S')
3039 hw->phy_addr = PHY_ADDR_MARV;
3043 printk(KERN_ERR PFX "%s: unsupported chip type 0x%x\n",
3044 pci_name(hw->pdev), hw->chip_id);
3048 mac_cfg = skge_read8(hw, B2_MAC_CFG);
3049 hw->ports = (mac_cfg & CFG_SNG_MAC) ? 1 : 2;
3050 hw->chip_rev = (mac_cfg & CFG_CHIP_R_MSK) >> 4;
3052 /* read the adapters RAM size */
3053 t8 = skge_read8(hw, B2_E_0);
3054 if (hw->chip_id == CHIP_ID_GENESIS) {
3056 /* special case: 4 x 64k x 36, offset = 0x80000 */
3057 hw->ram_size = 0x100000;
3058 hw->ram_offset = 0x80000;
3060 hw->ram_size = t8 * 512;
3063 hw->ram_size = 0x20000;
3065 hw->ram_size = t8 * 4096;
3067 hw->intr_mask = IS_HW_ERR | IS_EXT_REG;
3068 if (hw->chip_id == CHIP_ID_GENESIS)
3071 /* switch power to VCC (WA for VAUX problem) */
3072 skge_write8(hw, B0_POWER_CTRL,
3073 PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON);
3075 /* avoid boards with stuck Hardware error bits */
3076 if ((skge_read32(hw, B0_ISRC) & IS_HW_ERR) &&
3077 (skge_read32(hw, B0_HWE_ISRC) & IS_IRQ_SENSOR)) {
3078 printk(KERN_WARNING PFX "stuck hardware sensor bit\n");
3079 hw->intr_mask &= ~IS_HW_ERR;
3082 /* Clear PHY COMA */
3083 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
3084 pci_read_config_dword(hw->pdev, PCI_DEV_REG1, ®);
3085 reg &= ~PCI_PHY_COMA;
3086 pci_write_config_dword(hw->pdev, PCI_DEV_REG1, reg);
3087 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
3090 for (i = 0; i < hw->ports; i++) {
3091 skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET);
3092 skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR);
3096 /* turn off hardware timer (unused) */
3097 skge_write8(hw, B2_TI_CTRL, TIM_STOP);
3098 skge_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ);
3099 skge_write8(hw, B0_LED, LED_STAT_ON);
3101 /* enable the Tx Arbiters */
3102 for (i = 0; i < hw->ports; i++)
3103 skge_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB);
3105 /* Initialize ram interface */
3106 skge_write16(hw, B3_RI_CTRL, RI_RST_CLR);
3108 skge_write8(hw, B3_RI_WTO_R1, SK_RI_TO_53);
3109 skge_write8(hw, B3_RI_WTO_XA1, SK_RI_TO_53);
3110 skge_write8(hw, B3_RI_WTO_XS1, SK_RI_TO_53);
3111 skge_write8(hw, B3_RI_RTO_R1, SK_RI_TO_53);
3112 skge_write8(hw, B3_RI_RTO_XA1, SK_RI_TO_53);
3113 skge_write8(hw, B3_RI_RTO_XS1, SK_RI_TO_53);
3114 skge_write8(hw, B3_RI_WTO_R2, SK_RI_TO_53);
3115 skge_write8(hw, B3_RI_WTO_XA2, SK_RI_TO_53);
3116 skge_write8(hw, B3_RI_WTO_XS2, SK_RI_TO_53);
3117 skge_write8(hw, B3_RI_RTO_R2, SK_RI_TO_53);
3118 skge_write8(hw, B3_RI_RTO_XA2, SK_RI_TO_53);
3119 skge_write8(hw, B3_RI_RTO_XS2, SK_RI_TO_53);
3121 skge_write32(hw, B0_HWE_IMSK, IS_ERR_MSK);
3123 /* Set interrupt moderation for Transmit only
3124 * Receive interrupts avoided by NAPI
3126 skge_write32(hw, B2_IRQM_MSK, IS_XA1_F|IS_XA2_F);
3127 skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, 100));
3128 skge_write32(hw, B2_IRQM_CTRL, TIM_START);
3130 skge_write32(hw, B0_IMSK, hw->intr_mask);
3132 spin_lock_bh(&hw->phy_lock);
3133 for (i = 0; i < hw->ports; i++) {
3134 if (hw->chip_id == CHIP_ID_GENESIS)
3135 genesis_reset(hw, i);
3139 spin_unlock_bh(&hw->phy_lock);
3144 /* Initialize network device */
3145 static struct net_device *skge_devinit(struct skge_hw *hw, int port,
3148 struct skge_port *skge;
3149 struct net_device *dev = alloc_etherdev(sizeof(*skge));
3152 printk(KERN_ERR "skge etherdev alloc failed");
3156 SET_MODULE_OWNER(dev);
3157 SET_NETDEV_DEV(dev, &hw->pdev->dev);
3158 dev->open = skge_up;
3159 dev->stop = skge_down;
3160 dev->do_ioctl = skge_ioctl;
3161 dev->hard_start_xmit = skge_xmit_frame;
3162 dev->get_stats = skge_get_stats;
3163 if (hw->chip_id == CHIP_ID_GENESIS)
3164 dev->set_multicast_list = genesis_set_multicast;
3166 dev->set_multicast_list = yukon_set_multicast;
3168 dev->set_mac_address = skge_set_mac_address;
3169 dev->change_mtu = skge_change_mtu;
3170 SET_ETHTOOL_OPS(dev, &skge_ethtool_ops);
3171 dev->tx_timeout = skge_tx_timeout;
3172 dev->watchdog_timeo = TX_WATCHDOG;
3173 dev->poll = skge_poll;
3174 dev->weight = NAPI_WEIGHT;
3175 #ifdef CONFIG_NET_POLL_CONTROLLER
3176 dev->poll_controller = skge_netpoll;
3178 dev->irq = hw->pdev->irq;
3179 dev->features = NETIF_F_LLTX;
3181 dev->features |= NETIF_F_HIGHDMA;
3183 skge = netdev_priv(dev);
3186 skge->msg_enable = netif_msg_init(debug, default_msg);
3187 skge->tx_ring.count = DEFAULT_TX_RING_SIZE;
3188 skge->rx_ring.count = DEFAULT_RX_RING_SIZE;
3190 /* Auto speed and flow control */
3191 skge->autoneg = AUTONEG_ENABLE;
3192 skge->flow_control = FLOW_MODE_SYMMETRIC;
3195 skge->advertising = skge_supported_modes(hw);
3197 hw->dev[port] = dev;
3201 spin_lock_init(&skge->tx_lock);
3203 if (hw->chip_id != CHIP_ID_GENESIS) {
3204 dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
3208 /* read the mac address */
3209 memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port*8, ETH_ALEN);
3210 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
3212 /* device is off until link detection */
3213 netif_carrier_off(dev);
3214 netif_stop_queue(dev);
3219 static void __devinit skge_show_addr(struct net_device *dev)
3221 const struct skge_port *skge = netdev_priv(dev);
3223 if (netif_msg_probe(skge))
3224 printk(KERN_INFO PFX "%s: addr %02x:%02x:%02x:%02x:%02x:%02x\n",
3226 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
3227 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
3230 static int __devinit skge_probe(struct pci_dev *pdev,
3231 const struct pci_device_id *ent)
3233 struct net_device *dev, *dev1;
3235 int err, using_dac = 0;
3237 if ((err = pci_enable_device(pdev))) {
3238 printk(KERN_ERR PFX "%s cannot enable PCI device\n",
3243 if ((err = pci_request_regions(pdev, DRV_NAME))) {
3244 printk(KERN_ERR PFX "%s cannot obtain PCI resources\n",
3246 goto err_out_disable_pdev;
3249 pci_set_master(pdev);
3251 if (!(err = pci_set_dma_mask(pdev, DMA_64BIT_MASK)))
3253 else if (!(err = pci_set_dma_mask(pdev, DMA_32BIT_MASK))) {
3254 printk(KERN_ERR PFX "%s no usable DMA configuration\n",
3256 goto err_out_free_regions;
3260 /* byte swap descriptors in hardware */
3264 pci_read_config_dword(pdev, PCI_DEV_REG2, ®);
3265 reg |= PCI_REV_DESC;
3266 pci_write_config_dword(pdev, PCI_DEV_REG2, reg);
3271 hw = kzalloc(sizeof(*hw), GFP_KERNEL);
3273 printk(KERN_ERR PFX "%s: cannot allocate hardware struct\n",
3275 goto err_out_free_regions;
3279 spin_lock_init(&hw->phy_lock);
3280 tasklet_init(&hw->ext_tasklet, skge_extirq, (unsigned long) hw);
3282 hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000);
3284 printk(KERN_ERR PFX "%s: cannot map device registers\n",
3286 goto err_out_free_hw;
3289 if ((err = request_irq(pdev->irq, skge_intr, SA_SHIRQ, DRV_NAME, hw))) {
3290 printk(KERN_ERR PFX "%s: cannot assign irq %d\n",
3291 pci_name(pdev), pdev->irq);
3292 goto err_out_iounmap;
3294 pci_set_drvdata(pdev, hw);
3296 err = skge_reset(hw);
3298 goto err_out_free_irq;
3300 printk(KERN_INFO PFX DRV_VERSION " addr 0x%lx irq %d chip %s rev %d\n",
3301 pci_resource_start(pdev, 0), pdev->irq,
3302 skge_board_name(hw), hw->chip_rev);
3304 if ((dev = skge_devinit(hw, 0, using_dac)) == NULL)
3305 goto err_out_led_off;
3307 if ((err = register_netdev(dev))) {
3308 printk(KERN_ERR PFX "%s: cannot register net device\n",
3310 goto err_out_free_netdev;
3313 skge_show_addr(dev);
3315 if (hw->ports > 1 && (dev1 = skge_devinit(hw, 1, using_dac))) {
3316 if (register_netdev(dev1) == 0)
3317 skge_show_addr(dev1);
3319 /* Failure to register second port need not be fatal */
3320 printk(KERN_WARNING PFX "register of second port failed\n");
3328 err_out_free_netdev:
3331 skge_write16(hw, B0_LED, LED_STAT_OFF);
3333 free_irq(pdev->irq, hw);
3338 err_out_free_regions:
3339 pci_release_regions(pdev);
3340 err_out_disable_pdev:
3341 pci_disable_device(pdev);
3342 pci_set_drvdata(pdev, NULL);
3347 static void __devexit skge_remove(struct pci_dev *pdev)
3349 struct skge_hw *hw = pci_get_drvdata(pdev);
3350 struct net_device *dev0, *dev1;
3355 if ((dev1 = hw->dev[1]))
3356 unregister_netdev(dev1);
3358 unregister_netdev(dev0);
3360 skge_write32(hw, B0_IMSK, 0);
3361 skge_write16(hw, B0_LED, LED_STAT_OFF);
3363 skge_write8(hw, B0_CTST, CS_RST_SET);
3365 tasklet_kill(&hw->ext_tasklet);
3367 free_irq(pdev->irq, hw);
3368 pci_release_regions(pdev);
3369 pci_disable_device(pdev);
3376 pci_set_drvdata(pdev, NULL);
3380 static int skge_suspend(struct pci_dev *pdev, pm_message_t state)
3382 struct skge_hw *hw = pci_get_drvdata(pdev);
3385 for (i = 0; i < 2; i++) {
3386 struct net_device *dev = hw->dev[i];
3389 struct skge_port *skge = netdev_priv(dev);
3390 if (netif_running(dev)) {
3391 netif_carrier_off(dev);
3393 netif_stop_queue(dev);
3397 netif_device_detach(dev);
3402 pci_save_state(pdev);
3403 pci_enable_wake(pdev, pci_choose_state(pdev, state), wol);
3404 pci_disable_device(pdev);
3405 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3410 static int skge_resume(struct pci_dev *pdev)
3412 struct skge_hw *hw = pci_get_drvdata(pdev);
3415 pci_set_power_state(pdev, PCI_D0);
3416 pci_restore_state(pdev);
3417 pci_enable_wake(pdev, PCI_D0, 0);
3421 for (i = 0; i < 2; i++) {
3422 struct net_device *dev = hw->dev[i];
3424 netif_device_attach(dev);
3425 if (netif_running(dev) && skge_up(dev))
3433 static struct pci_driver skge_driver = {
3435 .id_table = skge_id_table,
3436 .probe = skge_probe,
3437 .remove = __devexit_p(skge_remove),
3439 .suspend = skge_suspend,
3440 .resume = skge_resume,
3444 static int __init skge_init_module(void)
3446 return pci_module_init(&skge_driver);
3449 static void __exit skge_cleanup_module(void)
3451 pci_unregister_driver(&skge_driver);
3454 module_init(skge_init_module);
3455 module_exit(skge_cleanup_module);