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, 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>
44 #define DRV_NAME "skge"
45 #define DRV_VERSION "0.6"
46 #define PFX DRV_NAME " "
48 #define DEFAULT_TX_RING_SIZE 128
49 #define DEFAULT_RX_RING_SIZE 512
50 #define MAX_TX_RING_SIZE 1024
51 #define MAX_RX_RING_SIZE 4096
52 #define PHY_RETRIES 1000
53 #define ETH_JUMBO_MTU 9000
54 #define TX_WATCHDOG (5 * HZ)
55 #define NAPI_WEIGHT 64
56 #define BLINK_HZ (HZ/4)
57 #define LINK_POLL_HZ (HZ/10)
59 MODULE_DESCRIPTION("SysKonnect Gigabit Ethernet driver");
60 MODULE_AUTHOR("Stephen Hemminger <shemminger@osdl.org>");
61 MODULE_LICENSE("GPL");
62 MODULE_VERSION(DRV_VERSION);
64 static const u32 default_msg
65 = NETIF_MSG_DRV| NETIF_MSG_PROBE| NETIF_MSG_LINK
66 | NETIF_MSG_IFUP| NETIF_MSG_IFDOWN;
68 static int debug = -1; /* defaults above */
69 module_param(debug, int, 0);
70 MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
72 static const struct pci_device_id skge_id_table[] = {
73 { PCI_DEVICE(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940) },
74 { PCI_DEVICE(PCI_VENDOR_ID_3COM, PCI_DEVICE_ID_3COM_3C940B) },
75 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_GE) },
76 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_YU) },
77 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E00) }, /* SK-9Exx */
78 { PCI_DEVICE(PCI_VENDOR_ID_DLINK, PCI_DEVICE_ID_DLINK_DGE510T), },
79 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4320) },
80 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x5005) }, /* Belkin */
81 { PCI_DEVICE(PCI_VENDOR_ID_CNET, PCI_DEVICE_ID_CNET_GIGACARD) },
82 { PCI_DEVICE(PCI_VENDOR_ID_LINKSYS, PCI_DEVICE_ID_LINKSYS_EG1032) },
83 { PCI_DEVICE(PCI_VENDOR_ID_LINKSYS, PCI_DEVICE_ID_LINKSYS_EG1064) },
86 MODULE_DEVICE_TABLE(pci, skge_id_table);
88 static int skge_up(struct net_device *dev);
89 static int skge_down(struct net_device *dev);
90 static void skge_tx_clean(struct skge_port *skge);
91 static void xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val);
92 static void gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val);
93 static void genesis_get_stats(struct skge_port *skge, u64 *data);
94 static void yukon_get_stats(struct skge_port *skge, u64 *data);
95 static void yukon_init(struct skge_hw *hw, int port);
96 static void yukon_reset(struct skge_hw *hw, int port);
97 static void genesis_mac_init(struct skge_hw *hw, int port);
98 static void genesis_reset(struct skge_hw *hw, int port);
100 static const int txqaddr[] = { Q_XA1, Q_XA2 };
101 static const int rxqaddr[] = { Q_R1, Q_R2 };
102 static const u32 rxirqmask[] = { IS_R1_F, IS_R2_F };
103 static const u32 txirqmask[] = { IS_XA1_F, IS_XA2_F };
105 /* Don't need to look at whole 16K.
106 * last interesting register is descriptor poll timer.
108 #define SKGE_REGS_LEN (29*128)
110 static int skge_get_regs_len(struct net_device *dev)
112 return SKGE_REGS_LEN;
116 * Returns copy of control register region
117 * I/O region is divided into banks and certain regions are unreadable
119 static void skge_get_regs(struct net_device *dev, struct ethtool_regs *regs,
122 const struct skge_port *skge = netdev_priv(dev);
124 const void __iomem *io = skge->hw->regs;
125 static const unsigned long bankmap
126 = (1<<0) | (1<<2) | (1<<8) | (1<<9)
127 | (1<<12) | (1<<13) | (1<<14) | (1<<15) | (1<<16)
128 | (1<<17) | (1<<20) | (1<<21) | (1<<22) | (1<<23)
129 | (1<<24) | (1<<25) | (1<<26) | (1<<27) | (1<<28);
132 for (offs = 0; offs < regs->len; offs += 128) {
133 u32 len = min_t(u32, 128, regs->len - offs);
135 if (bankmap & (1<<(offs/128)))
136 memcpy_fromio(p + offs, io + offs, len);
138 memset(p + offs, 0, len);
142 /* Wake on Lan only supported on Yukon chps with rev 1 or above */
143 static int wol_supported(const struct skge_hw *hw)
145 return !((hw->chip_id == CHIP_ID_GENESIS ||
146 (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0)));
149 static void skge_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
151 struct skge_port *skge = netdev_priv(dev);
153 wol->supported = wol_supported(skge->hw) ? WAKE_MAGIC : 0;
154 wol->wolopts = skge->wol ? WAKE_MAGIC : 0;
157 static int skge_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
159 struct skge_port *skge = netdev_priv(dev);
160 struct skge_hw *hw = skge->hw;
162 if (wol->wolopts != WAKE_MAGIC && wol->wolopts != 0)
165 if (wol->wolopts == WAKE_MAGIC && !wol_supported(hw))
168 skge->wol = wol->wolopts == WAKE_MAGIC;
171 memcpy_toio(hw->regs + WOL_MAC_ADDR, dev->dev_addr, ETH_ALEN);
173 skge_write16(hw, WOL_CTRL_STAT,
174 WOL_CTL_ENA_PME_ON_MAGIC_PKT |
175 WOL_CTL_ENA_MAGIC_PKT_UNIT);
177 skge_write16(hw, WOL_CTRL_STAT, WOL_CTL_DEFAULT);
183 static int skge_get_settings(struct net_device *dev,
184 struct ethtool_cmd *ecmd)
186 struct skge_port *skge = netdev_priv(dev);
187 struct skge_hw *hw = skge->hw;
189 ecmd->transceiver = XCVR_INTERNAL;
192 if (hw->chip_id == CHIP_ID_GENESIS)
193 ecmd->supported = SUPPORTED_1000baseT_Full
194 | SUPPORTED_1000baseT_Half
195 | SUPPORTED_Autoneg | SUPPORTED_TP;
197 ecmd->supported = SUPPORTED_10baseT_Half
198 | SUPPORTED_10baseT_Full
199 | SUPPORTED_100baseT_Half
200 | SUPPORTED_100baseT_Full
201 | SUPPORTED_1000baseT_Half
202 | SUPPORTED_1000baseT_Full
203 | SUPPORTED_Autoneg| SUPPORTED_TP;
205 if (hw->chip_id == CHIP_ID_YUKON)
206 ecmd->supported &= ~SUPPORTED_1000baseT_Half;
210 ecmd->port = PORT_TP;
211 ecmd->phy_address = hw->phy_addr;
213 ecmd->supported = SUPPORTED_1000baseT_Full
217 ecmd->port = PORT_FIBRE;
220 ecmd->advertising = skge->advertising;
221 ecmd->autoneg = skge->autoneg;
222 ecmd->speed = skge->speed;
223 ecmd->duplex = skge->duplex;
227 static u32 skge_modes(const struct skge_hw *hw)
229 u32 modes = ADVERTISED_Autoneg
230 | ADVERTISED_1000baseT_Full | ADVERTISED_1000baseT_Half
231 | ADVERTISED_100baseT_Full | ADVERTISED_100baseT_Half
232 | ADVERTISED_10baseT_Full | ADVERTISED_10baseT_Half;
235 modes |= ADVERTISED_TP;
236 switch (hw->chip_id) {
237 case CHIP_ID_GENESIS:
238 modes &= ~(ADVERTISED_100baseT_Full
239 | ADVERTISED_100baseT_Half
240 | ADVERTISED_10baseT_Full
241 | ADVERTISED_10baseT_Half);
245 modes &= ~ADVERTISED_1000baseT_Half;
250 modes |= ADVERTISED_FIBRE;
251 modes &= ~ADVERTISED_1000baseT_Half;
256 static int skge_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
258 struct skge_port *skge = netdev_priv(dev);
259 const struct skge_hw *hw = skge->hw;
261 if (ecmd->autoneg == AUTONEG_ENABLE) {
262 if (ecmd->advertising & skge_modes(hw))
265 switch (ecmd->speed) {
270 if (iscopper(hw) || hw->chip_id == CHIP_ID_GENESIS)
278 skge->autoneg = ecmd->autoneg;
279 skge->speed = ecmd->speed;
280 skge->duplex = ecmd->duplex;
281 skge->advertising = ecmd->advertising;
283 if (netif_running(dev)) {
290 static void skge_get_drvinfo(struct net_device *dev,
291 struct ethtool_drvinfo *info)
293 struct skge_port *skge = netdev_priv(dev);
295 strcpy(info->driver, DRV_NAME);
296 strcpy(info->version, DRV_VERSION);
297 strcpy(info->fw_version, "N/A");
298 strcpy(info->bus_info, pci_name(skge->hw->pdev));
301 static const struct skge_stat {
302 char name[ETH_GSTRING_LEN];
306 { "tx_bytes", XM_TXO_OK_HI, GM_TXO_OK_HI },
307 { "rx_bytes", XM_RXO_OK_HI, GM_RXO_OK_HI },
309 { "tx_broadcast", XM_TXF_BC_OK, GM_TXF_BC_OK },
310 { "rx_broadcast", XM_RXF_BC_OK, GM_RXF_BC_OK },
311 { "tx_multicast", XM_TXF_MC_OK, GM_TXF_MC_OK },
312 { "rx_multicast", XM_RXF_MC_OK, GM_RXF_MC_OK },
313 { "tx_unicast", XM_TXF_UC_OK, GM_TXF_UC_OK },
314 { "rx_unicast", XM_RXF_UC_OK, GM_RXF_UC_OK },
315 { "tx_mac_pause", XM_TXF_MPAUSE, GM_TXF_MPAUSE },
316 { "rx_mac_pause", XM_RXF_MPAUSE, GM_RXF_MPAUSE },
318 { "collisions", XM_TXF_SNG_COL, GM_TXF_SNG_COL },
319 { "multi_collisions", XM_TXF_MUL_COL, GM_TXF_MUL_COL },
320 { "aborted", XM_TXF_ABO_COL, GM_TXF_ABO_COL },
321 { "late_collision", XM_TXF_LAT_COL, GM_TXF_LAT_COL },
322 { "fifo_underrun", XM_TXE_FIFO_UR, GM_TXE_FIFO_UR },
323 { "fifo_overflow", XM_RXE_FIFO_OV, GM_RXE_FIFO_OV },
325 { "rx_toolong", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR },
326 { "rx_jabber", XM_RXF_JAB_PKT, GM_RXF_JAB_PKT },
327 { "rx_runt", XM_RXE_RUNT, GM_RXE_FRAG },
328 { "rx_too_long", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR },
329 { "rx_fcs_error", XM_RXF_FCS_ERR, GM_RXF_FCS_ERR },
332 static int skge_get_stats_count(struct net_device *dev)
334 return ARRAY_SIZE(skge_stats);
337 static void skge_get_ethtool_stats(struct net_device *dev,
338 struct ethtool_stats *stats, u64 *data)
340 struct skge_port *skge = netdev_priv(dev);
342 if (skge->hw->chip_id == CHIP_ID_GENESIS)
343 genesis_get_stats(skge, data);
345 yukon_get_stats(skge, data);
348 /* Use hardware MIB variables for critical path statistics and
349 * transmit feedback not reported at interrupt.
350 * Other errors are accounted for in interrupt handler.
352 static struct net_device_stats *skge_get_stats(struct net_device *dev)
354 struct skge_port *skge = netdev_priv(dev);
355 u64 data[ARRAY_SIZE(skge_stats)];
357 if (skge->hw->chip_id == CHIP_ID_GENESIS)
358 genesis_get_stats(skge, data);
360 yukon_get_stats(skge, data);
362 skge->net_stats.tx_bytes = data[0];
363 skge->net_stats.rx_bytes = data[1];
364 skge->net_stats.tx_packets = data[2] + data[4] + data[6];
365 skge->net_stats.rx_packets = data[3] + data[5] + data[7];
366 skge->net_stats.multicast = data[5] + data[7];
367 skge->net_stats.collisions = data[10];
368 skge->net_stats.tx_aborted_errors = data[12];
370 return &skge->net_stats;
373 static void skge_get_strings(struct net_device *dev, u32 stringset, u8 *data)
379 for (i = 0; i < ARRAY_SIZE(skge_stats); i++)
380 memcpy(data + i * ETH_GSTRING_LEN,
381 skge_stats[i].name, ETH_GSTRING_LEN);
386 static void skge_get_ring_param(struct net_device *dev,
387 struct ethtool_ringparam *p)
389 struct skge_port *skge = netdev_priv(dev);
391 p->rx_max_pending = MAX_RX_RING_SIZE;
392 p->tx_max_pending = MAX_TX_RING_SIZE;
393 p->rx_mini_max_pending = 0;
394 p->rx_jumbo_max_pending = 0;
396 p->rx_pending = skge->rx_ring.count;
397 p->tx_pending = skge->tx_ring.count;
398 p->rx_mini_pending = 0;
399 p->rx_jumbo_pending = 0;
402 static int skge_set_ring_param(struct net_device *dev,
403 struct ethtool_ringparam *p)
405 struct skge_port *skge = netdev_priv(dev);
407 if (p->rx_pending == 0 || p->rx_pending > MAX_RX_RING_SIZE ||
408 p->tx_pending == 0 || p->tx_pending > MAX_TX_RING_SIZE)
411 skge->rx_ring.count = p->rx_pending;
412 skge->tx_ring.count = p->tx_pending;
414 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);
437 struct skge_hw *hw = skge->hw;
438 int port = skge->port;
440 if (skge->autoneg != AUTONEG_ENABLE || !netif_running(dev))
443 spin_lock_bh(&hw->phy_lock);
444 if (hw->chip_id == CHIP_ID_GENESIS) {
445 genesis_reset(hw, port);
446 genesis_mac_init(hw, port);
448 yukon_reset(hw, port);
449 yukon_init(hw, port);
451 spin_unlock_bh(&hw->phy_lock);
455 static int skge_set_sg(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)
462 return ethtool_op_set_sg(dev, data);
465 static int skge_set_tx_csum(struct net_device *dev, u32 data)
467 struct skge_port *skge = netdev_priv(dev);
468 struct skge_hw *hw = skge->hw;
470 if (hw->chip_id == CHIP_ID_GENESIS && data)
473 return ethtool_op_set_tx_csum(dev, data);
476 static u32 skge_get_rx_csum(struct net_device *dev)
478 struct skge_port *skge = netdev_priv(dev);
480 return skge->rx_csum;
483 /* Only Yukon supports checksum offload. */
484 static int skge_set_rx_csum(struct net_device *dev, u32 data)
486 struct skge_port *skge = netdev_priv(dev);
488 if (skge->hw->chip_id == CHIP_ID_GENESIS && data)
491 skge->rx_csum = data;
495 static void skge_get_pauseparam(struct net_device *dev,
496 struct ethtool_pauseparam *ecmd)
498 struct skge_port *skge = netdev_priv(dev);
500 ecmd->tx_pause = (skge->flow_control == FLOW_MODE_LOC_SEND)
501 || (skge->flow_control == FLOW_MODE_SYMMETRIC);
502 ecmd->rx_pause = (skge->flow_control == FLOW_MODE_REM_SEND)
503 || (skge->flow_control == FLOW_MODE_SYMMETRIC);
505 ecmd->autoneg = skge->autoneg;
508 static int skge_set_pauseparam(struct net_device *dev,
509 struct ethtool_pauseparam *ecmd)
511 struct skge_port *skge = netdev_priv(dev);
513 skge->autoneg = ecmd->autoneg;
514 if (ecmd->rx_pause && ecmd->tx_pause)
515 skge->flow_control = FLOW_MODE_SYMMETRIC;
516 else if (ecmd->rx_pause && !ecmd->tx_pause)
517 skge->flow_control = FLOW_MODE_REM_SEND;
518 else if (!ecmd->rx_pause && ecmd->tx_pause)
519 skge->flow_control = FLOW_MODE_LOC_SEND;
521 skge->flow_control = FLOW_MODE_NONE;
523 if (netif_running(dev)) {
530 /* Chip internal frequency for clock calculations */
531 static inline u32 hwkhz(const struct skge_hw *hw)
533 if (hw->chip_id == CHIP_ID_GENESIS)
534 return 53215; /* or: 53.125 MHz */
536 return 78215; /* or: 78.125 MHz */
539 /* Chip hz to microseconds */
540 static inline u32 skge_clk2usec(const struct skge_hw *hw, u32 ticks)
542 return (ticks * 1000) / hwkhz(hw);
545 /* Microseconds to chip hz */
546 static inline u32 skge_usecs2clk(const struct skge_hw *hw, u32 usec)
548 return hwkhz(hw) * usec / 1000;
551 static int skge_get_coalesce(struct net_device *dev,
552 struct ethtool_coalesce *ecmd)
554 struct skge_port *skge = netdev_priv(dev);
555 struct skge_hw *hw = skge->hw;
556 int port = skge->port;
558 ecmd->rx_coalesce_usecs = 0;
559 ecmd->tx_coalesce_usecs = 0;
561 if (skge_read32(hw, B2_IRQM_CTRL) & TIM_START) {
562 u32 delay = skge_clk2usec(hw, skge_read32(hw, B2_IRQM_INI));
563 u32 msk = skge_read32(hw, B2_IRQM_MSK);
565 if (msk & rxirqmask[port])
566 ecmd->rx_coalesce_usecs = delay;
567 if (msk & txirqmask[port])
568 ecmd->tx_coalesce_usecs = delay;
574 /* Note: interrupt timer is per board, but can turn on/off per port */
575 static int skge_set_coalesce(struct net_device *dev,
576 struct ethtool_coalesce *ecmd)
578 struct skge_port *skge = netdev_priv(dev);
579 struct skge_hw *hw = skge->hw;
580 int port = skge->port;
581 u32 msk = skge_read32(hw, B2_IRQM_MSK);
584 if (ecmd->rx_coalesce_usecs == 0)
585 msk &= ~rxirqmask[port];
586 else if (ecmd->rx_coalesce_usecs < 25 ||
587 ecmd->rx_coalesce_usecs > 33333)
590 msk |= rxirqmask[port];
591 delay = ecmd->rx_coalesce_usecs;
594 if (ecmd->tx_coalesce_usecs == 0)
595 msk &= ~txirqmask[port];
596 else if (ecmd->tx_coalesce_usecs < 25 ||
597 ecmd->tx_coalesce_usecs > 33333)
600 msk |= txirqmask[port];
601 delay = min(delay, ecmd->rx_coalesce_usecs);
604 skge_write32(hw, B2_IRQM_MSK, msk);
606 skge_write32(hw, B2_IRQM_CTRL, TIM_STOP);
608 skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, delay));
609 skge_write32(hw, B2_IRQM_CTRL, TIM_START);
614 static void skge_led_on(struct skge_hw *hw, int port)
616 if (hw->chip_id == CHIP_ID_GENESIS) {
617 skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_ON);
618 skge_write8(hw, B0_LED, LED_STAT_ON);
620 skge_write8(hw, SK_REG(port, RX_LED_TST), LED_T_ON);
621 skge_write32(hw, SK_REG(port, RX_LED_VAL), 100);
622 skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START);
624 /* For Broadcom Phy only */
625 xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_ON);
627 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
628 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
629 PHY_M_LED_MO_DUP(MO_LED_ON) |
630 PHY_M_LED_MO_10(MO_LED_ON) |
631 PHY_M_LED_MO_100(MO_LED_ON) |
632 PHY_M_LED_MO_1000(MO_LED_ON) |
633 PHY_M_LED_MO_RX(MO_LED_ON));
637 static void skge_led_off(struct skge_hw *hw, int port)
639 if (hw->chip_id == CHIP_ID_GENESIS) {
640 skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF);
641 skge_write8(hw, B0_LED, LED_STAT_OFF);
643 skge_write32(hw, SK_REG(port, RX_LED_VAL), 0);
644 skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_T_OFF);
647 xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_OFF);
649 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
650 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
651 PHY_M_LED_MO_DUP(MO_LED_OFF) |
652 PHY_M_LED_MO_10(MO_LED_OFF) |
653 PHY_M_LED_MO_100(MO_LED_OFF) |
654 PHY_M_LED_MO_1000(MO_LED_OFF) |
655 PHY_M_LED_MO_RX(MO_LED_OFF));
659 static void skge_blink_timer(unsigned long data)
661 struct skge_port *skge = (struct skge_port *) data;
662 struct skge_hw *hw = skge->hw;
665 spin_lock_irqsave(&hw->phy_lock, flags);
667 skge_led_on(hw, skge->port);
669 skge_led_off(hw, skge->port);
670 spin_unlock_irqrestore(&hw->phy_lock, flags);
672 skge->blink_on = !skge->blink_on;
673 mod_timer(&skge->led_blink, jiffies + BLINK_HZ);
676 /* blink LED's for finding board */
677 static int skge_phys_id(struct net_device *dev, u32 data)
679 struct skge_port *skge = netdev_priv(dev);
681 if (!data || data > (u32)(MAX_SCHEDULE_TIMEOUT / HZ))
682 data = (u32)(MAX_SCHEDULE_TIMEOUT / HZ);
686 mod_timer(&skge->led_blink, jiffies+1);
688 msleep_interruptible(data * 1000);
689 del_timer_sync(&skge->led_blink);
691 skge_led_off(skge->hw, skge->port);
696 static struct ethtool_ops skge_ethtool_ops = {
697 .get_settings = skge_get_settings,
698 .set_settings = skge_set_settings,
699 .get_drvinfo = skge_get_drvinfo,
700 .get_regs_len = skge_get_regs_len,
701 .get_regs = skge_get_regs,
702 .get_wol = skge_get_wol,
703 .set_wol = skge_set_wol,
704 .get_msglevel = skge_get_msglevel,
705 .set_msglevel = skge_set_msglevel,
706 .nway_reset = skge_nway_reset,
707 .get_link = ethtool_op_get_link,
708 .get_ringparam = skge_get_ring_param,
709 .set_ringparam = skge_set_ring_param,
710 .get_pauseparam = skge_get_pauseparam,
711 .set_pauseparam = skge_set_pauseparam,
712 .get_coalesce = skge_get_coalesce,
713 .set_coalesce = skge_set_coalesce,
714 .get_sg = ethtool_op_get_sg,
715 .set_sg = skge_set_sg,
716 .get_tx_csum = ethtool_op_get_tx_csum,
717 .set_tx_csum = skge_set_tx_csum,
718 .get_rx_csum = skge_get_rx_csum,
719 .set_rx_csum = skge_set_rx_csum,
720 .get_strings = skge_get_strings,
721 .phys_id = skge_phys_id,
722 .get_stats_count = skge_get_stats_count,
723 .get_ethtool_stats = skge_get_ethtool_stats,
727 * Allocate ring elements and chain them together
728 * One-to-one association of board descriptors with ring elements
730 static int skge_ring_alloc(struct skge_ring *ring, void *vaddr, u64 base)
732 struct skge_tx_desc *d;
733 struct skge_element *e;
736 ring->start = kmalloc(sizeof(*e)*ring->count, GFP_KERNEL);
740 for (i = 0, e = ring->start, d = vaddr; i < ring->count; i++, e++, d++) {
742 if (i == ring->count - 1) {
743 e->next = ring->start;
744 d->next_offset = base;
747 d->next_offset = base + (i+1) * sizeof(*d);
750 ring->to_use = ring->to_clean = ring->start;
755 /* Setup buffer for receiving */
756 static inline int skge_rx_alloc(struct skge_port *skge,
757 struct skge_element *e)
759 unsigned long bufsize = skge->netdev->mtu + ETH_HLEN; /* VLAN? */
760 struct skge_rx_desc *rd = e->desc;
764 skb = dev_alloc_skb(bufsize + NET_IP_ALIGN);
765 if (unlikely(!skb)) {
766 printk(KERN_DEBUG PFX "%s: out of memory for receive\n",
771 skb->dev = skge->netdev;
772 skb_reserve(skb, NET_IP_ALIGN);
774 map = pci_map_single(skge->hw->pdev, skb->data, bufsize,
778 rd->dma_hi = map >> 32;
780 rd->csum1_start = ETH_HLEN;
781 rd->csum2_start = ETH_HLEN;
787 rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | bufsize;
788 pci_unmap_addr_set(e, mapaddr, map);
789 pci_unmap_len_set(e, maplen, bufsize);
793 /* Free all unused buffers in receive ring, assumes receiver stopped */
794 static void skge_rx_clean(struct skge_port *skge)
796 struct skge_hw *hw = skge->hw;
797 struct skge_ring *ring = &skge->rx_ring;
798 struct skge_element *e;
800 for (e = ring->to_clean; e != ring->to_use; e = e->next) {
801 struct skge_rx_desc *rd = e->desc;
804 pci_unmap_single(hw->pdev,
805 pci_unmap_addr(e, mapaddr),
806 pci_unmap_len(e, maplen),
808 dev_kfree_skb(e->skb);
814 /* Allocate buffers for receive ring
815 * For receive: to_use is refill location
816 * to_clean is next received frame.
818 * if (to_use == to_clean)
819 * then ring all frames in ring need buffers
820 * if (to_use->next == to_clean)
821 * then ring all frames in ring have buffers
823 static int skge_rx_fill(struct skge_port *skge)
825 struct skge_ring *ring = &skge->rx_ring;
826 struct skge_element *e;
829 for (e = ring->to_use; e->next != ring->to_clean; e = e->next) {
830 if (skge_rx_alloc(skge, e)) {
841 static void skge_link_up(struct skge_port *skge)
843 netif_carrier_on(skge->netdev);
844 if (skge->tx_avail > MAX_SKB_FRAGS + 1)
845 netif_wake_queue(skge->netdev);
847 if (netif_msg_link(skge))
849 "%s: Link is up at %d Mbps, %s duplex, flow control %s\n",
850 skge->netdev->name, skge->speed,
851 skge->duplex == DUPLEX_FULL ? "full" : "half",
852 (skge->flow_control == FLOW_MODE_NONE) ? "none" :
853 (skge->flow_control == FLOW_MODE_LOC_SEND) ? "tx only" :
854 (skge->flow_control == FLOW_MODE_REM_SEND) ? "rx only" :
855 (skge->flow_control == FLOW_MODE_SYMMETRIC) ? "tx and rx" :
859 static void skge_link_down(struct skge_port *skge)
861 netif_carrier_off(skge->netdev);
862 netif_stop_queue(skge->netdev);
864 if (netif_msg_link(skge))
865 printk(KERN_INFO PFX "%s: Link is down.\n", skge->netdev->name);
868 static u16 xm_phy_read(struct skge_hw *hw, int port, u16 reg)
873 xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr);
874 v = xm_read16(hw, port, XM_PHY_DATA);
876 /* Need to wait for external PHY */
877 for (i = 0; i < PHY_RETRIES; i++) {
879 if (xm_read16(hw, port, XM_MMU_CMD)
884 printk(KERN_WARNING PFX "%s: phy read timed out\n",
885 hw->dev[port]->name);
888 v = xm_read16(hw, port, XM_PHY_DATA);
893 static void xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val)
897 xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr);
898 for (i = 0; i < PHY_RETRIES; i++) {
899 if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY))
903 printk(KERN_WARNING PFX "%s: phy write failed to come ready\n",
904 hw->dev[port]->name);
908 xm_write16(hw, port, XM_PHY_DATA, val);
909 for (i = 0; i < PHY_RETRIES; i++) {
911 if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY))
914 printk(KERN_WARNING PFX "%s: phy write timed out\n",
915 hw->dev[port]->name);
918 static void genesis_init(struct skge_hw *hw)
920 /* set blink source counter */
921 skge_write32(hw, B2_BSC_INI, (SK_BLK_DUR * SK_FACT_53) / 100);
922 skge_write8(hw, B2_BSC_CTRL, BSC_START);
924 /* configure mac arbiter */
925 skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR);
927 /* configure mac arbiter timeout values */
928 skge_write8(hw, B3_MA_TOINI_RX1, SK_MAC_TO_53);
929 skge_write8(hw, B3_MA_TOINI_RX2, SK_MAC_TO_53);
930 skge_write8(hw, B3_MA_TOINI_TX1, SK_MAC_TO_53);
931 skge_write8(hw, B3_MA_TOINI_TX2, SK_MAC_TO_53);
933 skge_write8(hw, B3_MA_RCINI_RX1, 0);
934 skge_write8(hw, B3_MA_RCINI_RX2, 0);
935 skge_write8(hw, B3_MA_RCINI_TX1, 0);
936 skge_write8(hw, B3_MA_RCINI_TX2, 0);
938 /* configure packet arbiter timeout */
939 skge_write16(hw, B3_PA_CTRL, PA_RST_CLR);
940 skge_write16(hw, B3_PA_TOINI_RX1, SK_PKT_TO_MAX);
941 skge_write16(hw, B3_PA_TOINI_TX1, SK_PKT_TO_MAX);
942 skge_write16(hw, B3_PA_TOINI_RX2, SK_PKT_TO_MAX);
943 skge_write16(hw, B3_PA_TOINI_TX2, SK_PKT_TO_MAX);
946 static void genesis_reset(struct skge_hw *hw, int port)
951 /* reset the statistics module */
952 xm_write32(hw, port, XM_GP_PORT, XM_GP_RES_STAT);
953 xm_write16(hw, port, XM_IMSK, 0xffff); /* disable XMAC IRQs */
954 xm_write32(hw, port, XM_MODE, 0); /* clear Mode Reg */
955 xm_write16(hw, port, XM_TX_CMD, 0); /* reset TX CMD Reg */
956 xm_write16(hw, port, XM_RX_CMD, 0); /* reset RX CMD Reg */
958 /* disable Broadcom PHY IRQ */
959 xm_write16(hw, port, PHY_BCOM_INT_MASK, 0xffff);
961 xm_outhash(hw, port, XM_HSM, (u8 *) &zero);
962 for (i = 0; i < 15; i++)
963 xm_outaddr(hw, port, XM_EXM(i), (u8 *) &zero);
964 xm_outhash(hw, port, XM_SRC_CHK, (u8 *) &zero);
968 static void genesis_mac_init(struct skge_hw *hw, int port)
970 struct skge_port *skge = netdev_priv(hw->dev[port]);
974 u16 ctrl1, ctrl2, ctrl3, ctrl4, ctrl5;
976 /* magic workaround patterns for Broadcom */
977 static const struct {
981 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 },
982 { 0x17, 0x0013 }, { 0x15, 0x0404 }, { 0x17, 0x8006 },
983 { 0x15, 0x0132 }, { 0x17, 0x8006 }, { 0x15, 0x0232 },
984 { 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 },
986 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1204 },
987 { 0x17, 0x0013 }, { 0x15, 0x0A04 }, { 0x18, 0x0420 },
991 /* initialize Rx, Tx and Link LED */
992 skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_ON);
993 skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_LINKSYNC_ON);
995 skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START);
996 skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START);
998 /* Unreset the XMAC. */
999 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST);
1002 * Perform additional initialization for external PHYs,
1003 * namely for the 1000baseTX cards that use the XMAC's
1006 spin_lock_bh(&hw->phy_lock);
1008 /* External Phy Handling */
1009 /* Take PHY out of reset. */
1010 r = skge_read32(hw, B2_GP_IO);
1012 r |= GP_DIR_0|GP_IO_0;
1014 r |= GP_DIR_2|GP_IO_2;
1016 skge_write32(hw, B2_GP_IO, r);
1017 skge_read32(hw, B2_GP_IO);
1019 /* Enable GMII mode on the XMAC. */
1020 xm_write16(hw, port, XM_HW_CFG, XM_HW_GMII_MD);
1022 id1 = xm_phy_read(hw, port, PHY_XMAC_ID1);
1024 /* Optimize MDIO transfer by suppressing preamble. */
1025 xm_write16(hw, port, XM_MMU_CMD,
1026 xm_read16(hw, port, XM_MMU_CMD)
1029 if (id1 == PHY_BCOM_ID1_C0) {
1031 * Workaround BCOM Errata for the C0 type.
1032 * Write magic patterns to reserved registers.
1034 for (i = 0; i < ARRAY_SIZE(C0hack); i++)
1035 xm_phy_write(hw, port,
1036 C0hack[i].reg, C0hack[i].val);
1038 } else if (id1 == PHY_BCOM_ID1_A1) {
1040 * Workaround BCOM Errata for the A1 type.
1041 * Write magic patterns to reserved registers.
1043 for (i = 0; i < ARRAY_SIZE(A1hack); i++)
1044 xm_phy_write(hw, port,
1045 A1hack[i].reg, A1hack[i].val);
1049 * Workaround BCOM Errata (#10523) for all BCom PHYs.
1050 * Disable Power Management after reset.
1052 r = xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL);
1053 xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, r | PHY_B_AC_DIS_PM);
1057 xm_read16(hw, port, XM_ISRC);
1059 r = xm_read32(hw, port, XM_MODE);
1060 xm_write32(hw, port, XM_MODE, r|XM_MD_CSA);
1062 /* We don't need the FCS appended to the packet. */
1063 r = xm_read16(hw, port, XM_RX_CMD);
1064 xm_write16(hw, port, XM_RX_CMD, r | XM_RX_STRIP_FCS);
1066 /* We want short frames padded to 60 bytes. */
1067 r = xm_read16(hw, port, XM_TX_CMD);
1068 xm_write16(hw, port, XM_TX_CMD, r | XM_TX_AUTO_PAD);
1071 * Enable the reception of all error frames. This is is
1072 * a necessary evil due to the design of the XMAC. The
1073 * XMAC's receive FIFO is only 8K in size, however jumbo
1074 * frames can be up to 9000 bytes in length. When bad
1075 * frame filtering is enabled, the XMAC's RX FIFO operates
1076 * in 'store and forward' mode. For this to work, the
1077 * entire frame has to fit into the FIFO, but that means
1078 * that jumbo frames larger than 8192 bytes will be
1079 * truncated. Disabling all bad frame filtering causes
1080 * the RX FIFO to operate in streaming mode, in which
1081 * case the XMAC will start transfering frames out of the
1082 * RX FIFO as soon as the FIFO threshold is reached.
1084 r = xm_read32(hw, port, XM_MODE);
1085 xm_write32(hw, port, XM_MODE,
1086 XM_MD_RX_CRCE|XM_MD_RX_LONG|XM_MD_RX_RUNT|
1087 XM_MD_RX_ERR|XM_MD_RX_IRLE);
1089 xm_outaddr(hw, port, XM_SA, hw->dev[port]->dev_addr);
1090 xm_outaddr(hw, port, XM_EXM(0), hw->dev[port]->dev_addr);
1093 * Bump up the transmit threshold. This helps hold off transmit
1094 * underruns when we're blasting traffic from both ports at once.
1096 xm_write16(hw, port, XM_TX_THR, 512);
1098 /* Configure MAC arbiter */
1099 skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR);
1101 /* configure timeout values */
1102 skge_write8(hw, B3_MA_TOINI_RX1, 72);
1103 skge_write8(hw, B3_MA_TOINI_RX2, 72);
1104 skge_write8(hw, B3_MA_TOINI_TX1, 72);
1105 skge_write8(hw, B3_MA_TOINI_TX2, 72);
1107 skge_write8(hw, B3_MA_RCINI_RX1, 0);
1108 skge_write8(hw, B3_MA_RCINI_RX2, 0);
1109 skge_write8(hw, B3_MA_RCINI_TX1, 0);
1110 skge_write8(hw, B3_MA_RCINI_TX2, 0);
1112 /* Configure Rx MAC FIFO */
1113 skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_CLR);
1114 skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_TIM_PAT);
1115 skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_ENA_OP_MD);
1117 /* Configure Tx MAC FIFO */
1118 skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_CLR);
1119 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_TX_CTRL_DEF);
1120 skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_ENA_OP_MD);
1122 if (hw->dev[port]->mtu > ETH_DATA_LEN) {
1123 /* Enable frame flushing if jumbo frames used */
1124 skge_write16(hw, SK_REG(port,RX_MFF_CTRL1), MFF_ENA_FLUSH);
1126 /* enable timeout timers if normal frames */
1127 skge_write16(hw, B3_PA_CTRL,
1128 port == 0 ? PA_ENA_TO_TX1 : PA_ENA_TO_TX2);
1132 r = xm_read16(hw, port, XM_RX_CMD);
1133 if (hw->dev[port]->mtu > ETH_DATA_LEN)
1134 xm_write16(hw, port, XM_RX_CMD, r | XM_RX_BIG_PK_OK);
1136 xm_write16(hw, port, XM_RX_CMD, r & ~(XM_RX_BIG_PK_OK));
1138 /* Broadcom phy initialization */
1139 ctrl1 = PHY_CT_SP1000;
1141 ctrl3 = PHY_AN_CSMA;
1142 ctrl4 = PHY_B_PEC_EN_LTR;
1143 ctrl5 = PHY_B_AC_TX_TST;
1145 if (skge->autoneg == AUTONEG_ENABLE) {
1147 * Workaround BCOM Errata #1 for the C5 type.
1148 * 1000Base-T Link Acquisition Failure in Slave Mode
1149 * Set Repeater/DTE bit 10 of the 1000Base-T Control Register
1151 ctrl2 |= PHY_B_1000C_RD;
1152 if (skge->advertising & ADVERTISED_1000baseT_Half)
1153 ctrl2 |= PHY_B_1000C_AHD;
1154 if (skge->advertising & ADVERTISED_1000baseT_Full)
1155 ctrl2 |= PHY_B_1000C_AFD;
1157 /* Set Flow-control capabilities */
1158 switch (skge->flow_control) {
1159 case FLOW_MODE_NONE:
1160 ctrl3 |= PHY_B_P_NO_PAUSE;
1162 case FLOW_MODE_LOC_SEND:
1163 ctrl3 |= PHY_B_P_ASYM_MD;
1165 case FLOW_MODE_SYMMETRIC:
1166 ctrl3 |= PHY_B_P_SYM_MD;
1168 case FLOW_MODE_REM_SEND:
1169 ctrl3 |= PHY_B_P_BOTH_MD;
1173 /* Restart Auto-negotiation */
1174 ctrl1 |= PHY_CT_ANE | PHY_CT_RE_CFG;
1176 if (skge->duplex == DUPLEX_FULL)
1177 ctrl1 |= PHY_CT_DUP_MD;
1179 ctrl2 |= PHY_B_1000C_MSE; /* set it to Slave */
1182 xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, ctrl2);
1183 xm_phy_write(hw, port, PHY_BCOM_AUNE_ADV, ctrl3);
1185 if (skge->netdev->mtu > ETH_DATA_LEN) {
1186 ctrl4 |= PHY_B_PEC_HIGH_LA;
1187 ctrl5 |= PHY_B_AC_LONG_PACK;
1189 xm_phy_write(hw, port,PHY_BCOM_AUX_CTRL, ctrl5);
1192 xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, ctrl4);
1193 xm_phy_write(hw, port, PHY_BCOM_CTRL, ctrl1);
1194 spin_unlock_bh(&hw->phy_lock);
1196 /* Clear MIB counters */
1197 xm_write16(hw, port, XM_STAT_CMD,
1198 XM_SC_CLR_RXC | XM_SC_CLR_TXC);
1199 /* Clear two times according to Errata #3 */
1200 xm_write16(hw, port, XM_STAT_CMD,
1201 XM_SC_CLR_RXC | XM_SC_CLR_TXC);
1203 /* Start polling for link status */
1204 mod_timer(&skge->link_check, jiffies + LINK_POLL_HZ);
1207 static void genesis_stop(struct skge_port *skge)
1209 struct skge_hw *hw = skge->hw;
1210 int port = skge->port;
1213 /* Clear Tx packet arbiter timeout IRQ */
1214 skge_write16(hw, B3_PA_CTRL,
1215 port == 0 ? PA_CLR_TO_TX1 : PA_CLR_TO_TX2);
1218 * If the transfer stucks at the MAC the STOP command will not
1219 * terminate if we don't flush the XMAC's transmit FIFO !
1221 xm_write32(hw, port, XM_MODE,
1222 xm_read32(hw, port, XM_MODE)|XM_MD_FTF);
1226 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_SET_MAC_RST);
1228 /* For external PHYs there must be special handling */
1229 reg = skge_read32(hw, B2_GP_IO);
1237 skge_write32(hw, B2_GP_IO, reg);
1238 skge_read32(hw, B2_GP_IO);
1240 xm_write16(hw, port, XM_MMU_CMD,
1241 xm_read16(hw, port, XM_MMU_CMD)
1242 & ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX));
1244 xm_read16(hw, port, XM_MMU_CMD);
1248 static void genesis_get_stats(struct skge_port *skge, u64 *data)
1250 struct skge_hw *hw = skge->hw;
1251 int port = skge->port;
1253 unsigned long timeout = jiffies + HZ;
1255 xm_write16(hw, port,
1256 XM_STAT_CMD, XM_SC_SNP_TXC | XM_SC_SNP_RXC);
1258 /* wait for update to complete */
1259 while (xm_read16(hw, port, XM_STAT_CMD)
1260 & (XM_SC_SNP_TXC | XM_SC_SNP_RXC)) {
1261 if (time_after(jiffies, timeout))
1266 /* special case for 64 bit octet counter */
1267 data[0] = (u64) xm_read32(hw, port, XM_TXO_OK_HI) << 32
1268 | xm_read32(hw, port, XM_TXO_OK_LO);
1269 data[1] = (u64) xm_read32(hw, port, XM_RXO_OK_HI) << 32
1270 | xm_read32(hw, port, XM_RXO_OK_LO);
1272 for (i = 2; i < ARRAY_SIZE(skge_stats); i++)
1273 data[i] = xm_read32(hw, port, skge_stats[i].xmac_offset);
1276 static void genesis_mac_intr(struct skge_hw *hw, int port)
1278 struct skge_port *skge = netdev_priv(hw->dev[port]);
1279 u16 status = xm_read16(hw, port, XM_ISRC);
1281 pr_debug("genesis_intr status %x\n", status);
1283 if (status & XM_IS_TXF_UR) {
1284 xm_write32(hw, port, XM_MODE, XM_MD_FTF);
1285 ++skge->net_stats.tx_fifo_errors;
1287 if (status & XM_IS_RXF_OV) {
1288 xm_write32(hw, port, XM_MODE, XM_MD_FRF);
1289 ++skge->net_stats.rx_fifo_errors;
1293 static void gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val)
1297 gma_write16(hw, port, GM_SMI_DATA, val);
1298 gma_write16(hw, port, GM_SMI_CTRL,
1299 GM_SMI_CT_PHY_AD(hw->phy_addr) | GM_SMI_CT_REG_AD(reg));
1300 for (i = 0; i < PHY_RETRIES; i++) {
1303 if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY))
1308 static u16 gm_phy_read(struct skge_hw *hw, int port, u16 reg)
1312 gma_write16(hw, port, GM_SMI_CTRL,
1313 GM_SMI_CT_PHY_AD(hw->phy_addr)
1314 | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD);
1316 for (i = 0; i < PHY_RETRIES; i++) {
1318 if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL)
1322 printk(KERN_WARNING PFX "%s: phy read timeout\n",
1323 hw->dev[port]->name);
1326 return gma_read16(hw, port, GM_SMI_DATA);
1329 static void genesis_link_down(struct skge_port *skge)
1331 struct skge_hw *hw = skge->hw;
1332 int port = skge->port;
1334 pr_debug("genesis_link_down\n");
1336 xm_write16(hw, port, XM_MMU_CMD,
1337 xm_read16(hw, port, XM_MMU_CMD)
1338 & ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX));
1340 /* dummy read to ensure writing */
1341 (void) xm_read16(hw, port, XM_MMU_CMD);
1343 skge_link_down(skge);
1346 static void genesis_link_up(struct skge_port *skge)
1348 struct skge_hw *hw = skge->hw;
1349 int port = skge->port;
1353 pr_debug("genesis_link_up\n");
1354 cmd = xm_read16(hw, port, XM_MMU_CMD);
1357 * enabling pause frame reception is required for 1000BT
1358 * because the XMAC is not reset if the link is going down
1360 if (skge->flow_control == FLOW_MODE_NONE ||
1361 skge->flow_control == FLOW_MODE_LOC_SEND)
1362 cmd |= XM_MMU_IGN_PF;
1364 /* Enable Pause Frame Reception */
1365 cmd &= ~XM_MMU_IGN_PF;
1367 xm_write16(hw, port, XM_MMU_CMD, cmd);
1369 mode = xm_read32(hw, port, XM_MODE);
1370 if (skge->flow_control == FLOW_MODE_SYMMETRIC ||
1371 skge->flow_control == FLOW_MODE_LOC_SEND) {
1373 * Configure Pause Frame Generation
1374 * Use internal and external Pause Frame Generation.
1375 * Sending pause frames is edge triggered.
1376 * Send a Pause frame with the maximum pause time if
1377 * internal oder external FIFO full condition occurs.
1378 * Send a zero pause time frame to re-start transmission.
1380 /* XM_PAUSE_DA = '010000C28001' (default) */
1381 /* XM_MAC_PTIME = 0xffff (maximum) */
1382 /* remember this value is defined in big endian (!) */
1383 xm_write16(hw, port, XM_MAC_PTIME, 0xffff);
1385 mode |= XM_PAUSE_MODE;
1386 skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_PAUSE);
1389 * disable pause frame generation is required for 1000BT
1390 * because the XMAC is not reset if the link is going down
1392 /* Disable Pause Mode in Mode Register */
1393 mode &= ~XM_PAUSE_MODE;
1395 skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_DIS_PAUSE);
1398 xm_write32(hw, port, XM_MODE, mode);
1401 /* disable GP0 interrupt bit for external Phy */
1402 msk |= XM_IS_INP_ASS;
1404 xm_write16(hw, port, XM_IMSK, msk);
1405 xm_read16(hw, port, XM_ISRC);
1407 /* get MMU Command Reg. */
1408 cmd = xm_read16(hw, port, XM_MMU_CMD);
1409 if (skge->duplex == DUPLEX_FULL)
1410 cmd |= XM_MMU_GMII_FD;
1413 * Workaround BCOM Errata (#10523) for all BCom Phys
1414 * Enable Power Management after link up
1416 xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL,
1417 xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL)
1418 & ~PHY_B_AC_DIS_PM);
1419 xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK);
1422 xm_write16(hw, port, XM_MMU_CMD,
1423 cmd | XM_MMU_ENA_RX | XM_MMU_ENA_TX);
1428 static void genesis_bcom_intr(struct skge_port *skge)
1430 struct skge_hw *hw = skge->hw;
1431 int port = skge->port;
1432 u16 stat = xm_phy_read(hw, port, PHY_BCOM_INT_STAT);
1434 pr_debug("genesis_bcom intr stat=%x\n", stat);
1436 /* Workaround BCom Errata:
1437 * enable and disable loopback mode if "NO HCD" occurs.
1439 if (stat & PHY_B_IS_NO_HDCL) {
1440 u16 ctrl = xm_phy_read(hw, port, PHY_BCOM_CTRL);
1441 xm_phy_write(hw, port, PHY_BCOM_CTRL,
1442 ctrl | PHY_CT_LOOP);
1443 xm_phy_write(hw, port, PHY_BCOM_CTRL,
1444 ctrl & ~PHY_CT_LOOP);
1447 stat = xm_phy_read(hw, port, PHY_BCOM_STAT);
1448 if (stat & (PHY_B_IS_AN_PR | PHY_B_IS_LST_CHANGE)) {
1449 u16 aux = xm_phy_read(hw, port, PHY_BCOM_AUX_STAT);
1450 if ( !(aux & PHY_B_AS_LS) && netif_carrier_ok(skge->netdev))
1451 genesis_link_down(skge);
1453 else if (stat & PHY_B_IS_LST_CHANGE) {
1454 if (aux & PHY_B_AS_AN_C) {
1455 switch (aux & PHY_B_AS_AN_RES_MSK) {
1456 case PHY_B_RES_1000FD:
1457 skge->duplex = DUPLEX_FULL;
1459 case PHY_B_RES_1000HD:
1460 skge->duplex = DUPLEX_HALF;
1464 switch (aux & PHY_B_AS_PAUSE_MSK) {
1465 case PHY_B_AS_PAUSE_MSK:
1466 skge->flow_control = FLOW_MODE_SYMMETRIC;
1469 skge->flow_control = FLOW_MODE_REM_SEND;
1472 skge->flow_control = FLOW_MODE_LOC_SEND;
1475 skge->flow_control = FLOW_MODE_NONE;
1477 skge->speed = SPEED_1000;
1479 genesis_link_up(skge);
1482 mod_timer(&skge->link_check, jiffies + LINK_POLL_HZ);
1486 /* Perodic poll of phy status to check for link transistion */
1487 static void skge_link_timer(unsigned long __arg)
1489 struct skge_port *skge = (struct skge_port *) __arg;
1490 struct skge_hw *hw = skge->hw;
1492 if (hw->chip_id != CHIP_ID_GENESIS || !netif_running(skge->netdev))
1495 spin_lock_bh(&hw->phy_lock);
1496 genesis_bcom_intr(skge);
1497 spin_unlock_bh(&hw->phy_lock);
1500 /* Marvell Phy Initailization */
1501 static void yukon_init(struct skge_hw *hw, int port)
1503 struct skge_port *skge = netdev_priv(hw->dev[port]);
1504 u16 ctrl, ct1000, adv;
1505 u16 ledctrl, ledover;
1507 pr_debug("yukon_init\n");
1508 if (skge->autoneg == AUTONEG_ENABLE) {
1509 u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
1511 ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK |
1512 PHY_M_EC_MAC_S_MSK);
1513 ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ);
1515 ectrl |= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1);
1517 gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl);
1520 ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
1521 if (skge->autoneg == AUTONEG_DISABLE)
1522 ctrl &= ~PHY_CT_ANE;
1524 ctrl |= PHY_CT_RESET;
1525 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
1531 if (skge->autoneg == AUTONEG_ENABLE) {
1533 if (skge->advertising & ADVERTISED_1000baseT_Full)
1534 ct1000 |= PHY_M_1000C_AFD;
1535 if (skge->advertising & ADVERTISED_1000baseT_Half)
1536 ct1000 |= PHY_M_1000C_AHD;
1537 if (skge->advertising & ADVERTISED_100baseT_Full)
1538 adv |= PHY_M_AN_100_FD;
1539 if (skge->advertising & ADVERTISED_100baseT_Half)
1540 adv |= PHY_M_AN_100_HD;
1541 if (skge->advertising & ADVERTISED_10baseT_Full)
1542 adv |= PHY_M_AN_10_FD;
1543 if (skge->advertising & ADVERTISED_10baseT_Half)
1544 adv |= PHY_M_AN_10_HD;
1546 /* Set Flow-control capabilities */
1547 switch (skge->flow_control) {
1548 case FLOW_MODE_NONE:
1549 adv |= PHY_B_P_NO_PAUSE;
1551 case FLOW_MODE_LOC_SEND:
1552 adv |= PHY_B_P_ASYM_MD;
1554 case FLOW_MODE_SYMMETRIC:
1555 adv |= PHY_B_P_SYM_MD;
1557 case FLOW_MODE_REM_SEND:
1558 adv |= PHY_B_P_BOTH_MD;
1561 } else { /* special defines for FIBER (88E1011S only) */
1562 adv |= PHY_M_AN_1000X_AHD | PHY_M_AN_1000X_AFD;
1564 /* Set Flow-control capabilities */
1565 switch (skge->flow_control) {
1566 case FLOW_MODE_NONE:
1567 adv |= PHY_M_P_NO_PAUSE_X;
1569 case FLOW_MODE_LOC_SEND:
1570 adv |= PHY_M_P_ASYM_MD_X;
1572 case FLOW_MODE_SYMMETRIC:
1573 adv |= PHY_M_P_SYM_MD_X;
1575 case FLOW_MODE_REM_SEND:
1576 adv |= PHY_M_P_BOTH_MD_X;
1580 /* Restart Auto-negotiation */
1581 ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG;
1583 /* forced speed/duplex settings */
1584 ct1000 = PHY_M_1000C_MSE;
1586 if (skge->duplex == DUPLEX_FULL)
1587 ctrl |= PHY_CT_DUP_MD;
1589 switch (skge->speed) {
1591 ctrl |= PHY_CT_SP1000;
1594 ctrl |= PHY_CT_SP100;
1598 ctrl |= PHY_CT_RESET;
1601 gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000);
1603 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv);
1604 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
1606 /* Setup Phy LED's */
1607 ledctrl = PHY_M_LED_PULS_DUR(PULS_170MS);
1610 ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) | PHY_M_LEDC_TX_CTRL;
1612 /* turn off the Rx LED (LED_RX) */
1613 ledover |= PHY_M_LED_MO_RX(MO_LED_OFF);
1615 /* disable blink mode (LED_DUPLEX) on collisions */
1616 ctrl |= PHY_M_LEDC_DP_CTRL;
1617 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
1619 if (skge->autoneg == AUTONEG_DISABLE || skge->speed == SPEED_100) {
1620 /* turn on 100 Mbps LED (LED_LINK100) */
1621 ledover |= PHY_M_LED_MO_100(MO_LED_ON);
1625 gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover);
1627 /* Enable phy interrupt on autonegotiation complete (or link up) */
1628 if (skge->autoneg == AUTONEG_ENABLE)
1629 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_COMPL);
1631 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
1634 static void yukon_reset(struct skge_hw *hw, int port)
1636 gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);/* disable PHY IRQs */
1637 gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */
1638 gma_write16(hw, port, GM_MC_ADDR_H2, 0);
1639 gma_write16(hw, port, GM_MC_ADDR_H3, 0);
1640 gma_write16(hw, port, GM_MC_ADDR_H4, 0);
1642 gma_write16(hw, port, GM_RX_CTRL,
1643 gma_read16(hw, port, GM_RX_CTRL)
1644 | GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
1647 static void yukon_mac_init(struct skge_hw *hw, int port)
1649 struct skge_port *skge = netdev_priv(hw->dev[port]);
1652 const u8 *addr = hw->dev[port]->dev_addr;
1654 /* WA code for COMA mode -- set PHY reset */
1655 if (hw->chip_id == CHIP_ID_YUKON_LITE &&
1656 hw->chip_rev == CHIP_REV_YU_LITE_A3)
1657 skge_write32(hw, B2_GP_IO,
1658 (skge_read32(hw, B2_GP_IO) | GP_DIR_9 | GP_IO_9));
1661 skge_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
1662 skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
1664 /* WA code for COMA mode -- clear PHY reset */
1665 if (hw->chip_id == CHIP_ID_YUKON_LITE &&
1666 hw->chip_rev == CHIP_REV_YU_LITE_A3)
1667 skge_write32(hw, B2_GP_IO,
1668 (skge_read32(hw, B2_GP_IO) | GP_DIR_9)
1671 /* Set hardware config mode */
1672 reg = GPC_INT_POL_HI | GPC_DIS_FC | GPC_DIS_SLEEP |
1673 GPC_ENA_XC | GPC_ANEG_ADV_ALL_M | GPC_ENA_PAUSE;
1674 reg |= iscopper(hw) ? GPC_HWCFG_GMII_COP : GPC_HWCFG_GMII_FIB;
1676 /* Clear GMC reset */
1677 skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_SET);
1678 skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_CLR);
1679 skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON | GMC_RST_CLR);
1680 if (skge->autoneg == AUTONEG_DISABLE) {
1681 reg = GM_GPCR_AU_ALL_DIS;
1682 gma_write16(hw, port, GM_GP_CTRL,
1683 gma_read16(hw, port, GM_GP_CTRL) | reg);
1685 switch (skge->speed) {
1687 reg |= GM_GPCR_SPEED_1000;
1690 reg |= GM_GPCR_SPEED_100;
1693 if (skge->duplex == DUPLEX_FULL)
1694 reg |= GM_GPCR_DUP_FULL;
1696 reg = GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100 | GM_GPCR_DUP_FULL;
1697 switch (skge->flow_control) {
1698 case FLOW_MODE_NONE:
1699 skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
1700 reg |= GM_GPCR_FC_TX_DIS | GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
1702 case FLOW_MODE_LOC_SEND:
1703 /* disable Rx flow-control */
1704 reg |= GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
1707 gma_write16(hw, port, GM_GP_CTRL, reg);
1708 skge_read16(hw, GMAC_IRQ_SRC);
1710 spin_lock_bh(&hw->phy_lock);
1711 yukon_init(hw, port);
1712 spin_unlock_bh(&hw->phy_lock);
1715 reg = gma_read16(hw, port, GM_PHY_ADDR);
1716 gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR);
1718 for (i = 0; i < GM_MIB_CNT_SIZE; i++)
1719 gma_read16(hw, port, GM_MIB_CNT_BASE + 8*i);
1720 gma_write16(hw, port, GM_PHY_ADDR, reg);
1722 /* transmit control */
1723 gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF));
1725 /* receive control reg: unicast + multicast + no FCS */
1726 gma_write16(hw, port, GM_RX_CTRL,
1727 GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA);
1729 /* transmit flow control */
1730 gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff);
1732 /* transmit parameter */
1733 gma_write16(hw, port, GM_TX_PARAM,
1734 TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) |
1735 TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) |
1736 TX_IPG_JAM_DATA(TX_IPG_JAM_DEF));
1738 /* serial mode register */
1739 reg = GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);
1740 if (hw->dev[port]->mtu > 1500)
1741 reg |= GM_SMOD_JUMBO_ENA;
1743 gma_write16(hw, port, GM_SERIAL_MODE, reg);
1745 /* physical address: used for pause frames */
1746 gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr);
1747 /* virtual address for data */
1748 gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr);
1750 /* enable interrupt mask for counter overflows */
1751 gma_write16(hw, port, GM_TX_IRQ_MSK, 0);
1752 gma_write16(hw, port, GM_RX_IRQ_MSK, 0);
1753 gma_write16(hw, port, GM_TR_IRQ_MSK, 0);
1755 /* Initialize Mac Fifo */
1757 /* Configure Rx MAC FIFO */
1758 skge_write16(hw, SK_REG(port, RX_GMF_FL_MSK), RX_FF_FL_DEF_MSK);
1759 reg = GMF_OPER_ON | GMF_RX_F_FL_ON;
1760 if (hw->chip_id == CHIP_ID_YUKON_LITE &&
1761 hw->chip_rev == CHIP_REV_YU_LITE_A3)
1762 reg &= ~GMF_RX_F_FL_ON;
1763 skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
1764 skge_write16(hw, SK_REG(port, RX_GMF_CTRL_T), reg);
1765 skge_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF);
1767 /* Configure Tx MAC FIFO */
1768 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);
1769 skge_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);
1772 static void yukon_stop(struct skge_port *skge)
1774 struct skge_hw *hw = skge->hw;
1775 int port = skge->port;
1777 if (hw->chip_id == CHIP_ID_YUKON_LITE &&
1778 hw->chip_rev == CHIP_REV_YU_LITE_A3) {
1779 skge_write32(hw, B2_GP_IO,
1780 skge_read32(hw, B2_GP_IO) | GP_DIR_9 | GP_IO_9);
1783 gma_write16(hw, port, GM_GP_CTRL,
1784 gma_read16(hw, port, GM_GP_CTRL)
1785 & ~(GM_GPCR_RX_ENA|GM_GPCR_RX_ENA));
1786 gma_read16(hw, port, GM_GP_CTRL);
1788 /* set GPHY Control reset */
1789 gma_write32(hw, port, GPHY_CTRL, GPC_RST_SET);
1790 gma_write32(hw, port, GMAC_CTRL, GMC_RST_SET);
1793 static void yukon_get_stats(struct skge_port *skge, u64 *data)
1795 struct skge_hw *hw = skge->hw;
1796 int port = skge->port;
1799 data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32
1800 | gma_read32(hw, port, GM_TXO_OK_LO);
1801 data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32
1802 | gma_read32(hw, port, GM_RXO_OK_LO);
1804 for (i = 2; i < ARRAY_SIZE(skge_stats); i++)
1805 data[i] = gma_read32(hw, port,
1806 skge_stats[i].gma_offset);
1809 static void yukon_mac_intr(struct skge_hw *hw, int port)
1811 struct skge_port *skge = netdev_priv(hw->dev[port]);
1812 u8 status = skge_read8(hw, SK_REG(port, GMAC_IRQ_SRC));
1814 pr_debug("yukon_intr status %x\n", status);
1815 if (status & GM_IS_RX_FF_OR) {
1816 ++skge->net_stats.rx_fifo_errors;
1817 gma_write8(hw, port, RX_GMF_CTRL_T, GMF_CLI_RX_FO);
1819 if (status & GM_IS_TX_FF_UR) {
1820 ++skge->net_stats.tx_fifo_errors;
1821 gma_write8(hw, port, TX_GMF_CTRL_T, GMF_CLI_TX_FU);
1826 static u16 yukon_speed(const struct skge_hw *hw, u16 aux)
1828 switch (aux & PHY_M_PS_SPEED_MSK) {
1829 case PHY_M_PS_SPEED_1000:
1831 case PHY_M_PS_SPEED_100:
1838 static void yukon_link_up(struct skge_port *skge)
1840 struct skge_hw *hw = skge->hw;
1841 int port = skge->port;
1844 pr_debug("yukon_link_up\n");
1846 /* Enable Transmit FIFO Underrun */
1847 skge_write8(hw, GMAC_IRQ_MSK, GMAC_DEF_MSK);
1849 reg = gma_read16(hw, port, GM_GP_CTRL);
1850 if (skge->duplex == DUPLEX_FULL || skge->autoneg == AUTONEG_ENABLE)
1851 reg |= GM_GPCR_DUP_FULL;
1854 reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA;
1855 gma_write16(hw, port, GM_GP_CTRL, reg);
1857 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
1861 static void yukon_link_down(struct skge_port *skge)
1863 struct skge_hw *hw = skge->hw;
1864 int port = skge->port;
1866 pr_debug("yukon_link_down\n");
1867 gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);
1868 gm_phy_write(hw, port, GM_GP_CTRL,
1869 gm_phy_read(hw, port, GM_GP_CTRL)
1870 & ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA));
1872 if (skge->flow_control == FLOW_MODE_REM_SEND) {
1873 /* restore Asymmetric Pause bit */
1874 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV,
1875 gm_phy_read(hw, port,
1881 yukon_reset(hw, port);
1882 skge_link_down(skge);
1884 yukon_init(hw, port);
1887 static void yukon_phy_intr(struct skge_port *skge)
1889 struct skge_hw *hw = skge->hw;
1890 int port = skge->port;
1891 const char *reason = NULL;
1892 u16 istatus, phystat;
1894 istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT);
1895 phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT);
1896 pr_debug("yukon phy intr istat=%x phy_stat=%x\n", istatus, phystat);
1898 if (istatus & PHY_M_IS_AN_COMPL) {
1899 if (gm_phy_read(hw, port, PHY_MARV_AUNE_LP)
1901 reason = "remote fault";
1905 if (gm_phy_read(hw, port, PHY_MARV_1000T_STAT) & PHY_B_1000S_MSF) {
1906 reason = "master/slave fault";
1910 if (!(phystat & PHY_M_PS_SPDUP_RES)) {
1911 reason = "speed/duplex";
1915 skge->duplex = (phystat & PHY_M_PS_FULL_DUP)
1916 ? DUPLEX_FULL : DUPLEX_HALF;
1917 skge->speed = yukon_speed(hw, phystat);
1919 /* We are using IEEE 802.3z/D5.0 Table 37-4 */
1920 switch (phystat & PHY_M_PS_PAUSE_MSK) {
1921 case PHY_M_PS_PAUSE_MSK:
1922 skge->flow_control = FLOW_MODE_SYMMETRIC;
1924 case PHY_M_PS_RX_P_EN:
1925 skge->flow_control = FLOW_MODE_REM_SEND;
1927 case PHY_M_PS_TX_P_EN:
1928 skge->flow_control = FLOW_MODE_LOC_SEND;
1931 skge->flow_control = FLOW_MODE_NONE;
1934 if (skge->flow_control == FLOW_MODE_NONE ||
1935 (skge->speed < SPEED_1000 && skge->duplex == DUPLEX_HALF))
1936 skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
1938 skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
1939 yukon_link_up(skge);
1943 if (istatus & PHY_M_IS_LSP_CHANGE)
1944 skge->speed = yukon_speed(hw, phystat);
1946 if (istatus & PHY_M_IS_DUP_CHANGE)
1947 skge->duplex = (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
1948 if (istatus & PHY_M_IS_LST_CHANGE) {
1949 if (phystat & PHY_M_PS_LINK_UP)
1950 yukon_link_up(skge);
1952 yukon_link_down(skge);
1956 printk(KERN_ERR PFX "%s: autonegotiation failed (%s)\n",
1957 skge->netdev->name, reason);
1959 /* XXX restart autonegotiation? */
1962 static void skge_ramset(struct skge_hw *hw, u16 q, u32 start, size_t len)
1968 end = start + len - 1;
1970 skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR);
1971 skge_write32(hw, RB_ADDR(q, RB_START), start);
1972 skge_write32(hw, RB_ADDR(q, RB_WP), start);
1973 skge_write32(hw, RB_ADDR(q, RB_RP), start);
1974 skge_write32(hw, RB_ADDR(q, RB_END), end);
1976 if (q == Q_R1 || q == Q_R2) {
1977 /* Set thresholds on receive queue's */
1978 skge_write32(hw, RB_ADDR(q, RB_RX_UTPP),
1980 skge_write32(hw, RB_ADDR(q, RB_RX_LTPP),
1983 /* Enable store & forward on Tx queue's because
1984 * Tx FIFO is only 4K on Genesis and 1K on Yukon
1986 skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD);
1989 skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD);
1992 /* Setup Bus Memory Interface */
1993 static void skge_qset(struct skge_port *skge, u16 q,
1994 const struct skge_element *e)
1996 struct skge_hw *hw = skge->hw;
1997 u32 watermark = 0x600;
1998 u64 base = skge->dma + (e->desc - skge->mem);
2000 /* optimization to reduce window on 32bit/33mhz */
2001 if ((skge_read16(hw, B0_CTST) & (CS_BUS_CLOCK | CS_BUS_SLOT_SZ)) == 0)
2004 skge_write32(hw, Q_ADDR(q, Q_CSR), CSR_CLR_RESET);
2005 skge_write32(hw, Q_ADDR(q, Q_F), watermark);
2006 skge_write32(hw, Q_ADDR(q, Q_DA_H), (u32)(base >> 32));
2007 skge_write32(hw, Q_ADDR(q, Q_DA_L), (u32)base);
2010 static int skge_up(struct net_device *dev)
2012 struct skge_port *skge = netdev_priv(dev);
2013 struct skge_hw *hw = skge->hw;
2014 int port = skge->port;
2015 u32 chunk, ram_addr;
2016 size_t rx_size, tx_size;
2019 if (netif_msg_ifup(skge))
2020 printk(KERN_INFO PFX "%s: enabling interface\n", dev->name);
2022 rx_size = skge->rx_ring.count * sizeof(struct skge_rx_desc);
2023 tx_size = skge->tx_ring.count * sizeof(struct skge_tx_desc);
2024 skge->mem_size = tx_size + rx_size;
2025 skge->mem = pci_alloc_consistent(hw->pdev, skge->mem_size, &skge->dma);
2029 memset(skge->mem, 0, skge->mem_size);
2031 if ((err = skge_ring_alloc(&skge->rx_ring, skge->mem, skge->dma)))
2034 if (skge_rx_fill(skge))
2037 if ((err = skge_ring_alloc(&skge->tx_ring, skge->mem + rx_size,
2038 skge->dma + rx_size)))
2041 skge->tx_avail = skge->tx_ring.count - 1;
2044 if (hw->chip_id == CHIP_ID_GENESIS)
2045 genesis_mac_init(hw, port);
2047 yukon_mac_init(hw, port);
2049 /* Configure RAMbuffers */
2050 chunk = hw->ram_size / ((hw->ports + 1)*2);
2051 ram_addr = hw->ram_offset + 2 * chunk * port;
2053 skge_ramset(hw, rxqaddr[port], ram_addr, chunk);
2054 skge_qset(skge, rxqaddr[port], skge->rx_ring.to_clean);
2056 BUG_ON(skge->tx_ring.to_use != skge->tx_ring.to_clean);
2057 skge_ramset(hw, txqaddr[port], ram_addr+chunk, chunk);
2058 skge_qset(skge, txqaddr[port], skge->tx_ring.to_use);
2060 /* Start receiver BMU */
2062 skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_START | CSR_IRQ_CL_F);
2064 pr_debug("skge_up completed\n");
2068 skge_rx_clean(skge);
2069 kfree(skge->rx_ring.start);
2071 pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma);
2076 static int skge_down(struct net_device *dev)
2078 struct skge_port *skge = netdev_priv(dev);
2079 struct skge_hw *hw = skge->hw;
2080 int port = skge->port;
2082 if (netif_msg_ifdown(skge))
2083 printk(KERN_INFO PFX "%s: disabling interface\n", dev->name);
2085 netif_stop_queue(dev);
2087 del_timer_sync(&skge->led_blink);
2088 del_timer_sync(&skge->link_check);
2090 /* Stop transmitter */
2091 skge_write8(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_STOP);
2092 skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL),
2093 RB_RST_SET|RB_DIS_OP_MD);
2095 if (hw->chip_id == CHIP_ID_GENESIS)
2100 /* Disable Force Sync bit and Enable Alloc bit */
2101 skge_write8(hw, SK_REG(port, TXA_CTRL),
2102 TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC);
2104 /* Stop Interval Timer and Limit Counter of Tx Arbiter */
2105 skge_write32(hw, SK_REG(port, TXA_ITI_INI), 0L);
2106 skge_write32(hw, SK_REG(port, TXA_LIM_INI), 0L);
2108 /* Reset PCI FIFO */
2109 skge_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_SET_RESET);
2110 skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET);
2112 /* Reset the RAM Buffer async Tx queue */
2113 skge_write8(hw, RB_ADDR(port == 0 ? Q_XA1 : Q_XA2, RB_CTRL), RB_RST_SET);
2115 skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_STOP);
2116 skge_write32(hw, RB_ADDR(port ? Q_R2 : Q_R1, RB_CTRL),
2117 RB_RST_SET|RB_DIS_OP_MD);
2118 skge_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_SET_RESET);
2120 if (hw->chip_id == CHIP_ID_GENESIS) {
2121 skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_SET);
2122 skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_SET);
2123 skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_STOP);
2124 skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_STOP);
2126 skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
2127 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET);
2130 /* turn off led's */
2131 skge_write16(hw, B0_LED, LED_STAT_OFF);
2133 skge_tx_clean(skge);
2134 skge_rx_clean(skge);
2136 kfree(skge->rx_ring.start);
2137 kfree(skge->tx_ring.start);
2138 pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma);
2142 static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev)
2144 struct skge_port *skge = netdev_priv(dev);
2145 struct skge_hw *hw = skge->hw;
2146 struct skge_ring *ring = &skge->tx_ring;
2147 struct skge_element *e;
2148 struct skge_tx_desc *td;
2152 unsigned long flags;
2154 skb = skb_padto(skb, ETH_ZLEN);
2156 return NETDEV_TX_OK;
2158 local_irq_save(flags);
2159 if (!spin_trylock(&skge->tx_lock)) {
2160 /* Collision - tell upper layer to requeue */
2161 local_irq_restore(flags);
2162 return NETDEV_TX_LOCKED;
2165 if (unlikely(skge->tx_avail < skb_shinfo(skb)->nr_frags +1)) {
2166 netif_stop_queue(dev);
2167 spin_unlock_irqrestore(&skge->tx_lock, flags);
2169 printk(KERN_WARNING PFX "%s: ring full when queue awake!\n",
2171 return NETDEV_TX_BUSY;
2177 len = skb_headlen(skb);
2178 map = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE);
2179 pci_unmap_addr_set(e, mapaddr, map);
2180 pci_unmap_len_set(e, maplen, len);
2183 td->dma_hi = map >> 32;
2185 if (skb->ip_summed == CHECKSUM_HW) {
2186 const struct iphdr *ip
2187 = (const struct iphdr *) (skb->data + ETH_HLEN);
2188 int offset = skb->h.raw - skb->data;
2190 /* This seems backwards, but it is what the sk98lin
2191 * does. Looks like hardware is wrong?
2193 if (ip->protocol == IPPROTO_UDP
2194 && hw->chip_rev == 0 && hw->chip_id == CHIP_ID_YUKON)
2195 control = BMU_TCP_CHECK;
2197 control = BMU_UDP_CHECK;
2200 td->csum_start = offset;
2201 td->csum_write = offset + skb->csum;
2203 control = BMU_CHECK;
2205 if (!skb_shinfo(skb)->nr_frags) /* single buffer i.e. no fragments */
2206 control |= BMU_EOF| BMU_IRQ_EOF;
2208 struct skge_tx_desc *tf = td;
2210 control |= BMU_STFWD;
2211 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
2212 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2214 map = pci_map_page(hw->pdev, frag->page, frag->page_offset,
2215 frag->size, PCI_DMA_TODEVICE);
2221 tf->dma_hi = (u64) map >> 32;
2222 pci_unmap_addr_set(e, mapaddr, map);
2223 pci_unmap_len_set(e, maplen, frag->size);
2225 tf->control = BMU_OWN | BMU_SW | control | frag->size;
2227 tf->control |= BMU_EOF | BMU_IRQ_EOF;
2229 /* Make sure all the descriptors written */
2231 td->control = BMU_OWN | BMU_SW | BMU_STF | control | len;
2234 skge_write8(hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_START);
2236 if (netif_msg_tx_queued(skge))
2237 printk(KERN_DEBUG "%s: tx queued, slot %td, len %d\n",
2238 dev->name, e - ring->start, skb->len);
2240 ring->to_use = e->next;
2241 skge->tx_avail -= skb_shinfo(skb)->nr_frags + 1;
2242 if (skge->tx_avail <= MAX_SKB_FRAGS + 1) {
2243 pr_debug("%s: transmit queue full\n", dev->name);
2244 netif_stop_queue(dev);
2247 dev->trans_start = jiffies;
2248 spin_unlock_irqrestore(&skge->tx_lock, flags);
2250 return NETDEV_TX_OK;
2253 static inline void skge_tx_free(struct skge_hw *hw, struct skge_element *e)
2256 pci_unmap_single(hw->pdev,
2257 pci_unmap_addr(e, mapaddr),
2258 pci_unmap_len(e, maplen),
2260 dev_kfree_skb_any(e->skb);
2263 pci_unmap_page(hw->pdev,
2264 pci_unmap_addr(e, mapaddr),
2265 pci_unmap_len(e, maplen),
2270 static void skge_tx_clean(struct skge_port *skge)
2272 struct skge_ring *ring = &skge->tx_ring;
2273 struct skge_element *e;
2274 unsigned long flags;
2276 spin_lock_irqsave(&skge->tx_lock, flags);
2277 for (e = ring->to_clean; e != ring->to_use; e = e->next) {
2279 skge_tx_free(skge->hw, e);
2282 spin_unlock_irqrestore(&skge->tx_lock, flags);
2285 static void skge_tx_timeout(struct net_device *dev)
2287 struct skge_port *skge = netdev_priv(dev);
2289 if (netif_msg_timer(skge))
2290 printk(KERN_DEBUG PFX "%s: tx timeout\n", dev->name);
2292 skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_STOP);
2293 skge_tx_clean(skge);
2296 static int skge_change_mtu(struct net_device *dev, int new_mtu)
2300 if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
2305 if (netif_running(dev)) {
2313 static void genesis_set_multicast(struct net_device *dev)
2315 struct skge_port *skge = netdev_priv(dev);
2316 struct skge_hw *hw = skge->hw;
2317 int port = skge->port;
2318 int i, count = dev->mc_count;
2319 struct dev_mc_list *list = dev->mc_list;
2323 mode = xm_read32(hw, port, XM_MODE);
2324 mode |= XM_MD_ENA_HASH;
2325 if (dev->flags & IFF_PROMISC)
2326 mode |= XM_MD_ENA_PROM;
2328 mode &= ~XM_MD_ENA_PROM;
2330 if (dev->flags & IFF_ALLMULTI)
2331 memset(filter, 0xff, sizeof(filter));
2333 memset(filter, 0, sizeof(filter));
2334 for (i = 0; list && i < count; i++, list = list->next) {
2335 u32 crc = crc32_le(~0, list->dmi_addr, ETH_ALEN);
2336 u8 bit = 63 - (crc & 63);
2338 filter[bit/8] |= 1 << (bit%8);
2342 xm_outhash(hw, port, XM_HSM, filter);
2344 xm_write32(hw, port, XM_MODE, mode);
2347 static void yukon_set_multicast(struct net_device *dev)
2349 struct skge_port *skge = netdev_priv(dev);
2350 struct skge_hw *hw = skge->hw;
2351 int port = skge->port;
2352 struct dev_mc_list *list = dev->mc_list;
2356 memset(filter, 0, sizeof(filter));
2358 reg = gma_read16(hw, port, GM_RX_CTRL);
2359 reg |= GM_RXCR_UCF_ENA;
2361 if (dev->flags & IFF_PROMISC) /* promiscious */
2362 reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
2363 else if (dev->flags & IFF_ALLMULTI) /* all multicast */
2364 memset(filter, 0xff, sizeof(filter));
2365 else if (dev->mc_count == 0) /* no multicast */
2366 reg &= ~GM_RXCR_MCF_ENA;
2369 reg |= GM_RXCR_MCF_ENA;
2371 for (i = 0; list && i < dev->mc_count; i++, list = list->next) {
2372 u32 bit = ether_crc(ETH_ALEN, list->dmi_addr) & 0x3f;
2373 filter[bit/8] |= 1 << (bit%8);
2378 gma_write16(hw, port, GM_MC_ADDR_H1,
2379 (u16)filter[0] | ((u16)filter[1] << 8));
2380 gma_write16(hw, port, GM_MC_ADDR_H2,
2381 (u16)filter[2] | ((u16)filter[3] << 8));
2382 gma_write16(hw, port, GM_MC_ADDR_H3,
2383 (u16)filter[4] | ((u16)filter[5] << 8));
2384 gma_write16(hw, port, GM_MC_ADDR_H4,
2385 (u16)filter[6] | ((u16)filter[7] << 8));
2387 gma_write16(hw, port, GM_RX_CTRL, reg);
2390 static inline int bad_phy_status(const struct skge_hw *hw, u32 status)
2392 if (hw->chip_id == CHIP_ID_GENESIS)
2393 return (status & (XMR_FS_ERR | XMR_FS_2L_VLAN)) != 0;
2395 return (status & GMR_FS_ANY_ERR) ||
2396 (status & GMR_FS_RX_OK) == 0;
2399 static void skge_rx_error(struct skge_port *skge, int slot,
2400 u32 control, u32 status)
2402 if (netif_msg_rx_err(skge))
2403 printk(KERN_DEBUG PFX "%s: rx err, slot %d control 0x%x status 0x%x\n",
2404 skge->netdev->name, slot, control, status);
2406 if ((control & (BMU_EOF|BMU_STF)) != (BMU_STF|BMU_EOF)
2407 || (control & BMU_BBC) > skge->netdev->mtu + VLAN_ETH_HLEN)
2408 skge->net_stats.rx_length_errors++;
2410 if (skge->hw->chip_id == CHIP_ID_GENESIS) {
2411 if (status & (XMR_FS_RUNT|XMR_FS_LNG_ERR))
2412 skge->net_stats.rx_length_errors++;
2413 if (status & XMR_FS_FRA_ERR)
2414 skge->net_stats.rx_frame_errors++;
2415 if (status & XMR_FS_FCS_ERR)
2416 skge->net_stats.rx_crc_errors++;
2418 if (status & (GMR_FS_LONG_ERR|GMR_FS_UN_SIZE))
2419 skge->net_stats.rx_length_errors++;
2420 if (status & GMR_FS_FRAGMENT)
2421 skge->net_stats.rx_frame_errors++;
2422 if (status & GMR_FS_CRC_ERR)
2423 skge->net_stats.rx_crc_errors++;
2428 static int skge_poll(struct net_device *dev, int *budget)
2430 struct skge_port *skge = netdev_priv(dev);
2431 struct skge_hw *hw = skge->hw;
2432 struct skge_ring *ring = &skge->rx_ring;
2433 struct skge_element *e;
2434 unsigned int to_do = min(dev->quota, *budget);
2435 unsigned int work_done = 0;
2437 static const u32 irqmask[] = { IS_PORT_1, IS_PORT_2 };
2439 for (e = ring->to_clean; e != ring->to_use && work_done < to_do;
2441 struct skge_rx_desc *rd = e->desc;
2442 struct sk_buff *skb = e->skb;
2443 u32 control, len, status;
2446 control = rd->control;
2447 if (control & BMU_OWN)
2450 len = control & BMU_BBC;
2453 pci_unmap_single(hw->pdev,
2454 pci_unmap_addr(e, mapaddr),
2455 pci_unmap_len(e, maplen),
2456 PCI_DMA_FROMDEVICE);
2458 status = rd->status;
2459 if ((control & (BMU_EOF|BMU_STF)) != (BMU_STF|BMU_EOF)
2460 || len > dev->mtu + VLAN_ETH_HLEN
2461 || bad_phy_status(hw, status)) {
2462 skge_rx_error(skge, e - ring->start, control, status);
2467 if (netif_msg_rx_status(skge))
2468 printk(KERN_DEBUG PFX "%s: rx slot %td status 0x%x len %d\n",
2469 dev->name, e - ring->start, rd->status, len);
2472 skb->protocol = eth_type_trans(skb, dev);
2474 if (skge->rx_csum) {
2475 skb->csum = le16_to_cpu(rd->csum2);
2476 skb->ip_summed = CHECKSUM_HW;
2479 dev->last_rx = jiffies;
2480 netif_receive_skb(skb);
2486 *budget -= work_done;
2487 dev->quota -= work_done;
2488 done = work_done < to_do;
2490 if (skge_rx_fill(skge))
2493 /* restart receiver */
2495 skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR),
2496 CSR_START | CSR_IRQ_CL_F);
2499 local_irq_disable();
2500 hw->intr_mask |= irqmask[skge->port];
2501 /* Order is important since data can get interrupted */
2502 skge_write32(hw, B0_IMSK, hw->intr_mask);
2503 __netif_rx_complete(dev);
2510 static inline void skge_tx_intr(struct net_device *dev)
2512 struct skge_port *skge = netdev_priv(dev);
2513 struct skge_hw *hw = skge->hw;
2514 struct skge_ring *ring = &skge->tx_ring;
2515 struct skge_element *e;
2517 spin_lock(&skge->tx_lock);
2518 for (e = ring->to_clean; e != ring->to_use; e = e->next) {
2519 struct skge_tx_desc *td = e->desc;
2523 control = td->control;
2524 if (control & BMU_OWN)
2527 if (unlikely(netif_msg_tx_done(skge)))
2528 printk(KERN_DEBUG PFX "%s: tx done slot %td status 0x%x\n",
2529 dev->name, e - ring->start, td->status);
2531 skge_tx_free(hw, e);
2536 skge_write8(hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F);
2538 if (skge->tx_avail > MAX_SKB_FRAGS + 1)
2539 netif_wake_queue(dev);
2541 spin_unlock(&skge->tx_lock);
2544 static void skge_mac_parity(struct skge_hw *hw, int port)
2546 printk(KERN_ERR PFX "%s: mac data parity error\n",
2547 hw->dev[port] ? hw->dev[port]->name
2548 : (port == 0 ? "(port A)": "(port B"));
2550 if (hw->chip_id == CHIP_ID_GENESIS)
2551 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1),
2554 /* HW-Bug #8: cleared by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE */
2555 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T),
2556 (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0)
2557 ? GMF_CLI_TX_FC : GMF_CLI_TX_PE);
2560 static void skge_pci_clear(struct skge_hw *hw)
2564 pci_read_config_word(hw->pdev, PCI_STATUS, &status);
2565 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
2566 pci_write_config_word(hw->pdev, PCI_STATUS,
2567 status | PCI_STATUS_ERROR_BITS);
2568 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
2571 static void skge_mac_intr(struct skge_hw *hw, int port)
2573 if (hw->chip_id == CHIP_ID_GENESIS)
2574 genesis_mac_intr(hw, port);
2576 yukon_mac_intr(hw, port);
2579 /* Handle device specific framing and timeout interrupts */
2580 static void skge_error_irq(struct skge_hw *hw)
2582 u32 hwstatus = skge_read32(hw, B0_HWE_ISRC);
2584 if (hw->chip_id == CHIP_ID_GENESIS) {
2585 /* clear xmac errors */
2586 if (hwstatus & (IS_NO_STAT_M1|IS_NO_TIST_M1))
2587 skge_write16(hw, SK_REG(0, RX_MFF_CTRL1), MFF_CLR_INSTAT);
2588 if (hwstatus & (IS_NO_STAT_M2|IS_NO_TIST_M2))
2589 skge_write16(hw, SK_REG(0, RX_MFF_CTRL2), MFF_CLR_INSTAT);
2591 /* Timestamp (unused) overflow */
2592 if (hwstatus & IS_IRQ_TIST_OV)
2593 skge_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
2595 if (hwstatus & IS_IRQ_SENSOR) {
2596 /* no sensors on 32-bit Yukon */
2597 if (!(skge_read16(hw, B0_CTST) & CS_BUS_SLOT_SZ)) {
2598 printk(KERN_ERR PFX "ignoring bogus sensor interrups\n");
2599 skge_write32(hw, B0_HWE_IMSK,
2600 IS_ERR_MSK & ~IS_IRQ_SENSOR);
2602 printk(KERN_WARNING PFX "sensor interrupt\n");
2608 if (hwstatus & IS_RAM_RD_PAR) {
2609 printk(KERN_ERR PFX "Ram read data parity error\n");
2610 skge_write16(hw, B3_RI_CTRL, RI_CLR_RD_PERR);
2613 if (hwstatus & IS_RAM_WR_PAR) {
2614 printk(KERN_ERR PFX "Ram write data parity error\n");
2615 skge_write16(hw, B3_RI_CTRL, RI_CLR_WR_PERR);
2618 if (hwstatus & IS_M1_PAR_ERR)
2619 skge_mac_parity(hw, 0);
2621 if (hwstatus & IS_M2_PAR_ERR)
2622 skge_mac_parity(hw, 1);
2624 if (hwstatus & IS_R1_PAR_ERR)
2625 skge_write32(hw, B0_R1_CSR, CSR_IRQ_CL_P);
2627 if (hwstatus & IS_R2_PAR_ERR)
2628 skge_write32(hw, B0_R2_CSR, CSR_IRQ_CL_P);
2630 if (hwstatus & (IS_IRQ_MST_ERR|IS_IRQ_STAT)) {
2631 printk(KERN_ERR PFX "hardware error detected (status 0x%x)\n",
2636 hwstatus = skge_read32(hw, B0_HWE_ISRC);
2637 if (hwstatus & IS_IRQ_STAT) {
2638 printk(KERN_WARNING PFX "IRQ status %x: still set ignoring hardware errors\n",
2640 hw->intr_mask &= ~IS_HW_ERR;
2646 * Interrrupt from PHY are handled in tasklet (soft irq)
2647 * because accessing phy registers requires spin wait which might
2648 * cause excess interrupt latency.
2650 static void skge_extirq(unsigned long data)
2652 struct skge_hw *hw = (struct skge_hw *) data;
2655 spin_lock(&hw->phy_lock);
2656 for (port = 0; port < 2; port++) {
2657 struct net_device *dev = hw->dev[port];
2659 if (dev && netif_running(dev)) {
2660 struct skge_port *skge = netdev_priv(dev);
2662 if (hw->chip_id != CHIP_ID_GENESIS)
2663 yukon_phy_intr(skge);
2665 genesis_bcom_intr(skge);
2668 spin_unlock(&hw->phy_lock);
2670 local_irq_disable();
2671 hw->intr_mask |= IS_EXT_REG;
2672 skge_write32(hw, B0_IMSK, hw->intr_mask);
2676 static irqreturn_t skge_intr(int irq, void *dev_id, struct pt_regs *regs)
2678 struct skge_hw *hw = dev_id;
2679 u32 status = skge_read32(hw, B0_SP_ISRC);
2681 if (status == 0 || status == ~0) /* hotplug or shared irq */
2684 status &= hw->intr_mask;
2686 if ((status & IS_R1_F) && netif_rx_schedule_prep(hw->dev[0])) {
2688 hw->intr_mask &= ~IS_R1_F;
2689 skge_write32(hw, B0_IMSK, hw->intr_mask);
2690 __netif_rx_schedule(hw->dev[0]);
2693 if ((status & IS_R2_F) && netif_rx_schedule_prep(hw->dev[1])) {
2695 hw->intr_mask &= ~IS_R2_F;
2696 skge_write32(hw, B0_IMSK, hw->intr_mask);
2697 __netif_rx_schedule(hw->dev[1]);
2700 if (status & IS_XA1_F)
2701 skge_tx_intr(hw->dev[0]);
2703 if (status & IS_XA2_F)
2704 skge_tx_intr(hw->dev[1]);
2706 if (status & IS_MAC1)
2707 skge_mac_intr(hw, 0);
2709 if (status & IS_MAC2)
2710 skge_mac_intr(hw, 1);
2712 if (status & IS_HW_ERR)
2715 if (status & IS_EXT_REG) {
2716 hw->intr_mask &= ~IS_EXT_REG;
2717 tasklet_schedule(&hw->ext_tasklet);
2721 skge_write32(hw, B0_IMSK, hw->intr_mask);
2726 #ifdef CONFIG_NET_POLL_CONTROLLER
2727 static void skge_netpoll(struct net_device *dev)
2729 struct skge_port *skge = netdev_priv(dev);
2731 disable_irq(dev->irq);
2732 skge_intr(dev->irq, skge->hw, NULL);
2733 enable_irq(dev->irq);
2737 static int skge_set_mac_address(struct net_device *dev, void *p)
2739 struct skge_port *skge = netdev_priv(dev);
2740 struct sockaddr *addr = p;
2743 if (!is_valid_ether_addr(addr->sa_data))
2744 return -EADDRNOTAVAIL;
2747 memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
2748 memcpy_toio(skge->hw->regs + B2_MAC_1 + skge->port*8,
2749 dev->dev_addr, ETH_ALEN);
2750 memcpy_toio(skge->hw->regs + B2_MAC_2 + skge->port*8,
2751 dev->dev_addr, ETH_ALEN);
2752 if (dev->flags & IFF_UP)
2757 static const struct {
2761 { CHIP_ID_GENESIS, "Genesis" },
2762 { CHIP_ID_YUKON, "Yukon" },
2763 { CHIP_ID_YUKON_LITE, "Yukon-Lite"},
2764 { CHIP_ID_YUKON_LP, "Yukon-LP"},
2767 static const char *skge_board_name(const struct skge_hw *hw)
2770 static char buf[16];
2772 for (i = 0; i < ARRAY_SIZE(skge_chips); i++)
2773 if (skge_chips[i].id == hw->chip_id)
2774 return skge_chips[i].name;
2776 snprintf(buf, sizeof buf, "chipid 0x%x", hw->chip_id);
2782 * Setup the board data structure, but don't bring up
2785 static int skge_reset(struct skge_hw *hw)
2791 ctst = skge_read16(hw, B0_CTST);
2794 skge_write8(hw, B0_CTST, CS_RST_SET);
2795 skge_write8(hw, B0_CTST, CS_RST_CLR);
2797 /* clear PCI errors, if any */
2800 skge_write8(hw, B0_CTST, CS_MRST_CLR);
2802 /* restore CLK_RUN bits (for Yukon-Lite) */
2803 skge_write16(hw, B0_CTST,
2804 ctst & (CS_CLK_RUN_HOT|CS_CLK_RUN_RST|CS_CLK_RUN_ENA));
2806 hw->chip_id = skge_read8(hw, B2_CHIP_ID);
2807 hw->phy_type = skge_read8(hw, B2_E_1) & 0xf;
2808 hw->pmd_type = skge_read8(hw, B2_PMD_TYP);
2810 switch (hw->chip_id) {
2811 case CHIP_ID_GENESIS:
2812 switch (hw->phy_type) {
2814 hw->phy_addr = PHY_ADDR_BCOM;
2817 printk(KERN_ERR PFX "%s: unsupported phy type 0x%x\n",
2818 pci_name(hw->pdev), hw->phy_type);
2824 case CHIP_ID_YUKON_LITE:
2825 case CHIP_ID_YUKON_LP:
2826 if (hw->phy_type < SK_PHY_MARV_COPPER && hw->pmd_type != 'S')
2827 hw->phy_type = SK_PHY_MARV_COPPER;
2829 hw->phy_addr = PHY_ADDR_MARV;
2831 hw->phy_type = SK_PHY_MARV_FIBER;
2836 printk(KERN_ERR PFX "%s: unsupported chip type 0x%x\n",
2837 pci_name(hw->pdev), hw->chip_id);
2841 mac_cfg = skge_read8(hw, B2_MAC_CFG);
2842 hw->ports = (mac_cfg & CFG_SNG_MAC) ? 1 : 2;
2843 hw->chip_rev = (mac_cfg & CFG_CHIP_R_MSK) >> 4;
2845 /* read the adapters RAM size */
2846 t8 = skge_read8(hw, B2_E_0);
2847 if (hw->chip_id == CHIP_ID_GENESIS) {
2849 /* special case: 4 x 64k x 36, offset = 0x80000 */
2850 hw->ram_size = 0x100000;
2851 hw->ram_offset = 0x80000;
2853 hw->ram_size = t8 * 512;
2856 hw->ram_size = 0x20000;
2858 hw->ram_size = t8 * 4096;
2860 if (hw->chip_id == CHIP_ID_GENESIS)
2863 /* switch power to VCC (WA for VAUX problem) */
2864 skge_write8(hw, B0_POWER_CTRL,
2865 PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON);
2866 for (i = 0; i < hw->ports; i++) {
2867 skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET);
2868 skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR);
2872 /* turn off hardware timer (unused) */
2873 skge_write8(hw, B2_TI_CTRL, TIM_STOP);
2874 skge_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ);
2875 skge_write8(hw, B0_LED, LED_STAT_ON);
2877 /* enable the Tx Arbiters */
2878 for (i = 0; i < hw->ports; i++)
2879 skge_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB);
2881 /* Initialize ram interface */
2882 skge_write16(hw, B3_RI_CTRL, RI_RST_CLR);
2884 skge_write8(hw, B3_RI_WTO_R1, SK_RI_TO_53);
2885 skge_write8(hw, B3_RI_WTO_XA1, SK_RI_TO_53);
2886 skge_write8(hw, B3_RI_WTO_XS1, SK_RI_TO_53);
2887 skge_write8(hw, B3_RI_RTO_R1, SK_RI_TO_53);
2888 skge_write8(hw, B3_RI_RTO_XA1, SK_RI_TO_53);
2889 skge_write8(hw, B3_RI_RTO_XS1, SK_RI_TO_53);
2890 skge_write8(hw, B3_RI_WTO_R2, SK_RI_TO_53);
2891 skge_write8(hw, B3_RI_WTO_XA2, SK_RI_TO_53);
2892 skge_write8(hw, B3_RI_WTO_XS2, SK_RI_TO_53);
2893 skge_write8(hw, B3_RI_RTO_R2, SK_RI_TO_53);
2894 skge_write8(hw, B3_RI_RTO_XA2, SK_RI_TO_53);
2895 skge_write8(hw, B3_RI_RTO_XS2, SK_RI_TO_53);
2897 skge_write32(hw, B0_HWE_IMSK, IS_ERR_MSK);
2899 /* Set interrupt moderation for Transmit only
2900 * Receive interrupts avoided by NAPI
2902 skge_write32(hw, B2_IRQM_MSK, IS_XA1_F|IS_XA2_F);
2903 skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, 100));
2904 skge_write32(hw, B2_IRQM_CTRL, TIM_START);
2906 hw->intr_mask = IS_HW_ERR | IS_EXT_REG | IS_PORT_1;
2908 hw->intr_mask |= IS_PORT_2;
2909 skge_write32(hw, B0_IMSK, hw->intr_mask);
2911 if (hw->chip_id != CHIP_ID_GENESIS)
2912 skge_write8(hw, GMAC_IRQ_MSK, 0);
2914 spin_lock_bh(&hw->phy_lock);
2915 for (i = 0; i < hw->ports; i++) {
2916 if (hw->chip_id == CHIP_ID_GENESIS)
2917 genesis_reset(hw, i);
2921 spin_unlock_bh(&hw->phy_lock);
2926 /* Initialize network device */
2927 static struct net_device *skge_devinit(struct skge_hw *hw, int port,
2930 struct skge_port *skge;
2931 struct net_device *dev = alloc_etherdev(sizeof(*skge));
2934 printk(KERN_ERR "skge etherdev alloc failed");
2938 SET_MODULE_OWNER(dev);
2939 SET_NETDEV_DEV(dev, &hw->pdev->dev);
2940 dev->open = skge_up;
2941 dev->stop = skge_down;
2942 dev->hard_start_xmit = skge_xmit_frame;
2943 dev->get_stats = skge_get_stats;
2944 if (hw->chip_id == CHIP_ID_GENESIS)
2945 dev->set_multicast_list = genesis_set_multicast;
2947 dev->set_multicast_list = yukon_set_multicast;
2949 dev->set_mac_address = skge_set_mac_address;
2950 dev->change_mtu = skge_change_mtu;
2951 SET_ETHTOOL_OPS(dev, &skge_ethtool_ops);
2952 dev->tx_timeout = skge_tx_timeout;
2953 dev->watchdog_timeo = TX_WATCHDOG;
2954 dev->poll = skge_poll;
2955 dev->weight = NAPI_WEIGHT;
2956 #ifdef CONFIG_NET_POLL_CONTROLLER
2957 dev->poll_controller = skge_netpoll;
2959 dev->irq = hw->pdev->irq;
2960 dev->features = NETIF_F_LLTX;
2962 dev->features |= NETIF_F_HIGHDMA;
2964 skge = netdev_priv(dev);
2967 skge->msg_enable = netif_msg_init(debug, default_msg);
2968 skge->tx_ring.count = DEFAULT_TX_RING_SIZE;
2969 skge->rx_ring.count = DEFAULT_RX_RING_SIZE;
2971 /* Auto speed and flow control */
2972 skge->autoneg = AUTONEG_ENABLE;
2973 skge->flow_control = FLOW_MODE_SYMMETRIC;
2976 skge->advertising = skge_modes(hw);
2978 hw->dev[port] = dev;
2982 spin_lock_init(&skge->tx_lock);
2984 init_timer(&skge->link_check);
2985 skge->link_check.function = skge_link_timer;
2986 skge->link_check.data = (unsigned long) skge;
2988 init_timer(&skge->led_blink);
2989 skge->led_blink.function = skge_blink_timer;
2990 skge->led_blink.data = (unsigned long) skge;
2992 if (hw->chip_id != CHIP_ID_GENESIS) {
2993 dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
2997 /* read the mac address */
2998 memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port*8, ETH_ALEN);
3000 /* device is off until link detection */
3001 netif_carrier_off(dev);
3002 netif_stop_queue(dev);
3007 static void __devinit skge_show_addr(struct net_device *dev)
3009 const struct skge_port *skge = netdev_priv(dev);
3011 if (netif_msg_probe(skge))
3012 printk(KERN_INFO PFX "%s: addr %02x:%02x:%02x:%02x:%02x:%02x\n",
3014 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
3015 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
3018 static int __devinit skge_probe(struct pci_dev *pdev,
3019 const struct pci_device_id *ent)
3021 struct net_device *dev, *dev1;
3023 int err, using_dac = 0;
3025 if ((err = pci_enable_device(pdev))) {
3026 printk(KERN_ERR PFX "%s cannot enable PCI device\n",
3031 if ((err = pci_request_regions(pdev, DRV_NAME))) {
3032 printk(KERN_ERR PFX "%s cannot obtain PCI resources\n",
3034 goto err_out_disable_pdev;
3037 pci_set_master(pdev);
3039 if (!(err = pci_set_dma_mask(pdev, DMA_64BIT_MASK)))
3041 else if (!(err = pci_set_dma_mask(pdev, DMA_32BIT_MASK))) {
3042 printk(KERN_ERR PFX "%s no usable DMA configuration\n",
3044 goto err_out_free_regions;
3048 /* byte swap decriptors in hardware */
3052 pci_read_config_dword(pdev, PCI_DEV_REG2, ®);
3053 reg |= PCI_REV_DESC;
3054 pci_write_config_dword(pdev, PCI_DEV_REG2, reg);
3059 hw = kmalloc(sizeof(*hw), GFP_KERNEL);
3061 printk(KERN_ERR PFX "%s: cannot allocate hardware struct\n",
3063 goto err_out_free_regions;
3066 memset(hw, 0, sizeof(*hw));
3068 spin_lock_init(&hw->phy_lock);
3069 tasklet_init(&hw->ext_tasklet, skge_extirq, (unsigned long) hw);
3071 hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000);
3073 printk(KERN_ERR PFX "%s: cannot map device registers\n",
3075 goto err_out_free_hw;
3078 if ((err = request_irq(pdev->irq, skge_intr, SA_SHIRQ, DRV_NAME, hw))) {
3079 printk(KERN_ERR PFX "%s: cannot assign irq %d\n",
3080 pci_name(pdev), pdev->irq);
3081 goto err_out_iounmap;
3083 pci_set_drvdata(pdev, hw);
3085 err = skge_reset(hw);
3087 goto err_out_free_irq;
3089 printk(KERN_INFO PFX "addr 0x%lx irq %d chip %s rev %d\n",
3090 pci_resource_start(pdev, 0), pdev->irq,
3091 skge_board_name(hw), hw->chip_rev);
3093 if ((dev = skge_devinit(hw, 0, using_dac)) == NULL)
3094 goto err_out_led_off;
3096 if ((err = register_netdev(dev))) {
3097 printk(KERN_ERR PFX "%s: cannot register net device\n",
3099 goto err_out_free_netdev;
3102 skge_show_addr(dev);
3104 if (hw->ports > 1 && (dev1 = skge_devinit(hw, 1, using_dac))) {
3105 if (register_netdev(dev1) == 0)
3106 skge_show_addr(dev1);
3108 /* Failure to register second port need not be fatal */
3109 printk(KERN_WARNING PFX "register of second port failed\n");
3117 err_out_free_netdev:
3120 skge_write16(hw, B0_LED, LED_STAT_OFF);
3122 free_irq(pdev->irq, hw);
3127 err_out_free_regions:
3128 pci_release_regions(pdev);
3129 err_out_disable_pdev:
3130 pci_disable_device(pdev);
3131 pci_set_drvdata(pdev, NULL);
3136 static void __devexit skge_remove(struct pci_dev *pdev)
3138 struct skge_hw *hw = pci_get_drvdata(pdev);
3139 struct net_device *dev0, *dev1;
3144 if ((dev1 = hw->dev[1]))
3145 unregister_netdev(dev1);
3147 unregister_netdev(dev0);
3149 tasklet_kill(&hw->ext_tasklet);
3151 free_irq(pdev->irq, hw);
3152 pci_release_regions(pdev);
3153 pci_disable_device(pdev);
3157 skge_write16(hw, B0_LED, LED_STAT_OFF);
3160 pci_set_drvdata(pdev, NULL);
3164 static int skge_suspend(struct pci_dev *pdev, u32 state)
3166 struct skge_hw *hw = pci_get_drvdata(pdev);
3169 for (i = 0; i < 2; i++) {
3170 struct net_device *dev = hw->dev[i];
3173 struct skge_port *skge = netdev_priv(dev);
3174 if (netif_running(dev)) {
3175 netif_carrier_off(dev);
3178 netif_device_detach(dev);
3183 pci_save_state(pdev);
3184 pci_enable_wake(pdev, state, wol);
3185 pci_disable_device(pdev);
3186 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3191 static int skge_resume(struct pci_dev *pdev)
3193 struct skge_hw *hw = pci_get_drvdata(pdev);
3196 pci_set_power_state(pdev, PCI_D0);
3197 pci_restore_state(pdev);
3198 pci_enable_wake(pdev, PCI_D0, 0);
3202 for (i = 0; i < 2; i++) {
3203 struct net_device *dev = hw->dev[i];
3205 netif_device_attach(dev);
3206 if (netif_running(dev))
3214 static struct pci_driver skge_driver = {
3216 .id_table = skge_id_table,
3217 .probe = skge_probe,
3218 .remove = __devexit_p(skge_remove),
3220 .suspend = skge_suspend,
3221 .resume = skge_resume,
3225 static int __init skge_init_module(void)
3227 return pci_module_init(&skge_driver);
3230 static void __exit skge_cleanup_module(void)
3232 pci_unregister_driver(&skge_driver);
3235 module_init(skge_init_module);
3236 module_exit(skge_cleanup_module);