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 switch (hw->phy_type) {
626 xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL,
630 skge_write8(hw, SK_REG(port, TX_LED_TST), LED_T_ON);
631 skge_write32(hw, SK_REG(port, TX_LED_VAL), 100);
632 skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START);
635 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
636 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
637 PHY_M_LED_MO_DUP(MO_LED_ON) |
638 PHY_M_LED_MO_10(MO_LED_ON) |
639 PHY_M_LED_MO_100(MO_LED_ON) |
640 PHY_M_LED_MO_1000(MO_LED_ON) |
641 PHY_M_LED_MO_RX(MO_LED_ON));
645 static void skge_led_off(struct skge_hw *hw, int port)
647 if (hw->chip_id == CHIP_ID_GENESIS) {
648 skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF);
649 skge_write8(hw, B0_LED, LED_STAT_OFF);
651 skge_write32(hw, SK_REG(port, RX_LED_VAL), 0);
652 skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_T_OFF);
654 switch (hw->phy_type) {
656 xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL,
660 skge_write32(hw, SK_REG(port, TX_LED_VAL), 0);
661 skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_T_OFF);
664 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
665 gm_phy_write(hw, port, PHY_MARV_LED_OVER,
666 PHY_M_LED_MO_DUP(MO_LED_OFF) |
667 PHY_M_LED_MO_10(MO_LED_OFF) |
668 PHY_M_LED_MO_100(MO_LED_OFF) |
669 PHY_M_LED_MO_1000(MO_LED_OFF) |
670 PHY_M_LED_MO_RX(MO_LED_OFF));
674 static void skge_blink_timer(unsigned long data)
676 struct skge_port *skge = (struct skge_port *) data;
677 struct skge_hw *hw = skge->hw;
680 spin_lock_irqsave(&hw->phy_lock, flags);
682 skge_led_on(hw, skge->port);
684 skge_led_off(hw, skge->port);
685 spin_unlock_irqrestore(&hw->phy_lock, flags);
687 skge->blink_on = !skge->blink_on;
688 mod_timer(&skge->led_blink, jiffies + BLINK_HZ);
691 /* blink LED's for finding board */
692 static int skge_phys_id(struct net_device *dev, u32 data)
694 struct skge_port *skge = netdev_priv(dev);
696 if (!data || data > (u32)(MAX_SCHEDULE_TIMEOUT / HZ))
697 data = (u32)(MAX_SCHEDULE_TIMEOUT / HZ);
701 mod_timer(&skge->led_blink, jiffies+1);
703 msleep_interruptible(data * 1000);
704 del_timer_sync(&skge->led_blink);
706 skge_led_off(skge->hw, skge->port);
711 static struct ethtool_ops skge_ethtool_ops = {
712 .get_settings = skge_get_settings,
713 .set_settings = skge_set_settings,
714 .get_drvinfo = skge_get_drvinfo,
715 .get_regs_len = skge_get_regs_len,
716 .get_regs = skge_get_regs,
717 .get_wol = skge_get_wol,
718 .set_wol = skge_set_wol,
719 .get_msglevel = skge_get_msglevel,
720 .set_msglevel = skge_set_msglevel,
721 .nway_reset = skge_nway_reset,
722 .get_link = ethtool_op_get_link,
723 .get_ringparam = skge_get_ring_param,
724 .set_ringparam = skge_set_ring_param,
725 .get_pauseparam = skge_get_pauseparam,
726 .set_pauseparam = skge_set_pauseparam,
727 .get_coalesce = skge_get_coalesce,
728 .set_coalesce = skge_set_coalesce,
729 .get_sg = ethtool_op_get_sg,
730 .set_sg = skge_set_sg,
731 .get_tx_csum = ethtool_op_get_tx_csum,
732 .set_tx_csum = skge_set_tx_csum,
733 .get_rx_csum = skge_get_rx_csum,
734 .set_rx_csum = skge_set_rx_csum,
735 .get_strings = skge_get_strings,
736 .phys_id = skge_phys_id,
737 .get_stats_count = skge_get_stats_count,
738 .get_ethtool_stats = skge_get_ethtool_stats,
742 * Allocate ring elements and chain them together
743 * One-to-one association of board descriptors with ring elements
745 static int skge_ring_alloc(struct skge_ring *ring, void *vaddr, u64 base)
747 struct skge_tx_desc *d;
748 struct skge_element *e;
751 ring->start = kmalloc(sizeof(*e)*ring->count, GFP_KERNEL);
755 for (i = 0, e = ring->start, d = vaddr; i < ring->count; i++, e++, d++) {
757 if (i == ring->count - 1) {
758 e->next = ring->start;
759 d->next_offset = base;
762 d->next_offset = base + (i+1) * sizeof(*d);
765 ring->to_use = ring->to_clean = ring->start;
770 /* Setup buffer for receiving */
771 static inline int skge_rx_alloc(struct skge_port *skge,
772 struct skge_element *e)
774 unsigned long bufsize = skge->netdev->mtu + ETH_HLEN; /* VLAN? */
775 struct skge_rx_desc *rd = e->desc;
779 skb = dev_alloc_skb(bufsize + NET_IP_ALIGN);
780 if (unlikely(!skb)) {
781 printk(KERN_DEBUG PFX "%s: out of memory for receive\n",
786 skb->dev = skge->netdev;
787 skb_reserve(skb, NET_IP_ALIGN);
789 map = pci_map_single(skge->hw->pdev, skb->data, bufsize,
793 rd->dma_hi = map >> 32;
795 rd->csum1_start = ETH_HLEN;
796 rd->csum2_start = ETH_HLEN;
802 rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | bufsize;
803 pci_unmap_addr_set(e, mapaddr, map);
804 pci_unmap_len_set(e, maplen, bufsize);
808 /* Free all unused buffers in receive ring, assumes receiver stopped */
809 static void skge_rx_clean(struct skge_port *skge)
811 struct skge_hw *hw = skge->hw;
812 struct skge_ring *ring = &skge->rx_ring;
813 struct skge_element *e;
815 for (e = ring->to_clean; e != ring->to_use; e = e->next) {
816 struct skge_rx_desc *rd = e->desc;
819 pci_unmap_single(hw->pdev,
820 pci_unmap_addr(e, mapaddr),
821 pci_unmap_len(e, maplen),
823 dev_kfree_skb(e->skb);
829 /* Allocate buffers for receive ring
830 * For receive: to_use is refill location
831 * to_clean is next received frame.
833 * if (to_use == to_clean)
834 * then ring all frames in ring need buffers
835 * if (to_use->next == to_clean)
836 * then ring all frames in ring have buffers
838 static int skge_rx_fill(struct skge_port *skge)
840 struct skge_ring *ring = &skge->rx_ring;
841 struct skge_element *e;
844 for (e = ring->to_use; e->next != ring->to_clean; e = e->next) {
845 if (skge_rx_alloc(skge, e)) {
856 static void skge_link_up(struct skge_port *skge)
858 netif_carrier_on(skge->netdev);
859 if (skge->tx_avail > MAX_SKB_FRAGS + 1)
860 netif_wake_queue(skge->netdev);
862 if (netif_msg_link(skge))
864 "%s: Link is up at %d Mbps, %s duplex, flow control %s\n",
865 skge->netdev->name, skge->speed,
866 skge->duplex == DUPLEX_FULL ? "full" : "half",
867 (skge->flow_control == FLOW_MODE_NONE) ? "none" :
868 (skge->flow_control == FLOW_MODE_LOC_SEND) ? "tx only" :
869 (skge->flow_control == FLOW_MODE_REM_SEND) ? "rx only" :
870 (skge->flow_control == FLOW_MODE_SYMMETRIC) ? "tx and rx" :
874 static void skge_link_down(struct skge_port *skge)
876 netif_carrier_off(skge->netdev);
877 netif_stop_queue(skge->netdev);
879 if (netif_msg_link(skge))
880 printk(KERN_INFO PFX "%s: Link is down.\n", skge->netdev->name);
883 static u16 xm_phy_read(struct skge_hw *hw, int port, u16 reg)
888 xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr);
889 v = xm_read16(hw, port, XM_PHY_DATA);
890 if (hw->phy_type != SK_PHY_XMAC) {
891 for (i = 0; i < PHY_RETRIES; i++) {
893 if (xm_read16(hw, port, XM_MMU_CMD)
898 printk(KERN_WARNING PFX "%s: phy read timed out\n",
899 hw->dev[port]->name);
902 v = xm_read16(hw, port, XM_PHY_DATA);
908 static void 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))
918 printk(KERN_WARNING PFX "%s: phy write failed to come ready\n",
919 hw->dev[port]->name);
923 xm_write16(hw, port, XM_PHY_DATA, val);
924 for (i = 0; i < PHY_RETRIES; i++) {
926 if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY))
929 printk(KERN_WARNING PFX "%s: phy write timed out\n",
930 hw->dev[port]->name);
933 static void genesis_init(struct skge_hw *hw)
935 /* set blink source counter */
936 skge_write32(hw, B2_BSC_INI, (SK_BLK_DUR * SK_FACT_53) / 100);
937 skge_write8(hw, B2_BSC_CTRL, BSC_START);
939 /* configure mac arbiter */
940 skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR);
942 /* configure mac arbiter timeout values */
943 skge_write8(hw, B3_MA_TOINI_RX1, SK_MAC_TO_53);
944 skge_write8(hw, B3_MA_TOINI_RX2, SK_MAC_TO_53);
945 skge_write8(hw, B3_MA_TOINI_TX1, SK_MAC_TO_53);
946 skge_write8(hw, B3_MA_TOINI_TX2, SK_MAC_TO_53);
948 skge_write8(hw, B3_MA_RCINI_RX1, 0);
949 skge_write8(hw, B3_MA_RCINI_RX2, 0);
950 skge_write8(hw, B3_MA_RCINI_TX1, 0);
951 skge_write8(hw, B3_MA_RCINI_TX2, 0);
953 /* configure packet arbiter timeout */
954 skge_write16(hw, B3_PA_CTRL, PA_RST_CLR);
955 skge_write16(hw, B3_PA_TOINI_RX1, SK_PKT_TO_MAX);
956 skge_write16(hw, B3_PA_TOINI_TX1, SK_PKT_TO_MAX);
957 skge_write16(hw, B3_PA_TOINI_RX2, SK_PKT_TO_MAX);
958 skge_write16(hw, B3_PA_TOINI_TX2, SK_PKT_TO_MAX);
961 static void genesis_reset(struct skge_hw *hw, int port)
966 /* reset the statistics module */
967 xm_write32(hw, port, XM_GP_PORT, XM_GP_RES_STAT);
968 xm_write16(hw, port, XM_IMSK, 0xffff); /* disable XMAC IRQs */
969 xm_write32(hw, port, XM_MODE, 0); /* clear Mode Reg */
970 xm_write16(hw, port, XM_TX_CMD, 0); /* reset TX CMD Reg */
971 xm_write16(hw, port, XM_RX_CMD, 0); /* reset RX CMD Reg */
973 /* disable all PHY IRQs */
974 if (hw->phy_type == SK_PHY_BCOM)
975 xm_write16(hw, port, PHY_BCOM_INT_MASK, 0xffff);
977 xm_outhash(hw, port, XM_HSM, (u8 *) &zero);
978 for (i = 0; i < 15; i++)
979 xm_outaddr(hw, port, XM_EXM(i), (u8 *) &zero);
980 xm_outhash(hw, port, XM_SRC_CHK, (u8 *) &zero);
984 static void genesis_mac_init(struct skge_hw *hw, int port)
986 struct skge_port *skge = netdev_priv(hw->dev[port]);
990 u16 ctrl1, ctrl2, ctrl3, ctrl4, ctrl5;
992 /* magic workaround patterns for Broadcom */
993 static const struct {
997 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 },
998 { 0x17, 0x0013 }, { 0x15, 0x0404 }, { 0x17, 0x8006 },
999 { 0x15, 0x0132 }, { 0x17, 0x8006 }, { 0x15, 0x0232 },
1000 { 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 },
1002 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1204 },
1003 { 0x17, 0x0013 }, { 0x15, 0x0A04 }, { 0x18, 0x0420 },
1007 /* initialize Rx, Tx and Link LED */
1008 skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_ON);
1009 skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_LINKSYNC_ON);
1011 skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START);
1012 skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START);
1014 /* Unreset the XMAC. */
1015 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST);
1018 * Perform additional initialization for external PHYs,
1019 * namely for the 1000baseTX cards that use the XMAC's
1022 spin_lock_bh(&hw->phy_lock);
1023 if (hw->phy_type != SK_PHY_XMAC) {
1024 /* Take PHY out of reset. */
1025 r = skge_read32(hw, B2_GP_IO);
1027 r |= GP_DIR_0|GP_IO_0;
1029 r |= GP_DIR_2|GP_IO_2;
1031 skge_write32(hw, B2_GP_IO, r);
1032 skge_read32(hw, B2_GP_IO);
1034 /* Enable GMII mode on the XMAC. */
1035 xm_write16(hw, port, XM_HW_CFG, XM_HW_GMII_MD);
1037 id1 = xm_phy_read(hw, port, PHY_XMAC_ID1);
1039 /* Optimize MDIO transfer by suppressing preamble. */
1040 xm_write16(hw, port, XM_MMU_CMD,
1041 xm_read16(hw, port, XM_MMU_CMD)
1044 if (id1 == PHY_BCOM_ID1_C0) {
1046 * Workaround BCOM Errata for the C0 type.
1047 * Write magic patterns to reserved registers.
1049 for (i = 0; i < ARRAY_SIZE(C0hack); i++)
1050 xm_phy_write(hw, port,
1051 C0hack[i].reg, C0hack[i].val);
1053 } else if (id1 == PHY_BCOM_ID1_A1) {
1055 * Workaround BCOM Errata for the A1 type.
1056 * Write magic patterns to reserved registers.
1058 for (i = 0; i < ARRAY_SIZE(A1hack); i++)
1059 xm_phy_write(hw, port,
1060 A1hack[i].reg, A1hack[i].val);
1064 * Workaround BCOM Errata (#10523) for all BCom PHYs.
1065 * Disable Power Management after reset.
1067 r = xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL);
1068 xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, r | PHY_B_AC_DIS_PM);
1072 xm_read16(hw, port, XM_ISRC);
1074 r = xm_read32(hw, port, XM_MODE);
1075 xm_write32(hw, port, XM_MODE, r|XM_MD_CSA);
1077 /* We don't need the FCS appended to the packet. */
1078 r = xm_read16(hw, port, XM_RX_CMD);
1079 xm_write16(hw, port, XM_RX_CMD, r | XM_RX_STRIP_FCS);
1081 /* We want short frames padded to 60 bytes. */
1082 r = xm_read16(hw, port, XM_TX_CMD);
1083 xm_write16(hw, port, XM_TX_CMD, r | XM_TX_AUTO_PAD);
1086 * Enable the reception of all error frames. This is is
1087 * a necessary evil due to the design of the XMAC. The
1088 * XMAC's receive FIFO is only 8K in size, however jumbo
1089 * frames can be up to 9000 bytes in length. When bad
1090 * frame filtering is enabled, the XMAC's RX FIFO operates
1091 * in 'store and forward' mode. For this to work, the
1092 * entire frame has to fit into the FIFO, but that means
1093 * that jumbo frames larger than 8192 bytes will be
1094 * truncated. Disabling all bad frame filtering causes
1095 * the RX FIFO to operate in streaming mode, in which
1096 * case the XMAC will start transfering frames out of the
1097 * RX FIFO as soon as the FIFO threshold is reached.
1099 r = xm_read32(hw, port, XM_MODE);
1100 xm_write32(hw, port, XM_MODE,
1101 XM_MD_RX_CRCE|XM_MD_RX_LONG|XM_MD_RX_RUNT|
1102 XM_MD_RX_ERR|XM_MD_RX_IRLE);
1104 xm_outaddr(hw, port, XM_SA, hw->dev[port]->dev_addr);
1105 xm_outaddr(hw, port, XM_EXM(0), hw->dev[port]->dev_addr);
1108 * Bump up the transmit threshold. This helps hold off transmit
1109 * underruns when we're blasting traffic from both ports at once.
1111 xm_write16(hw, port, XM_TX_THR, 512);
1113 /* Configure MAC arbiter */
1114 skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR);
1116 /* configure timeout values */
1117 skge_write8(hw, B3_MA_TOINI_RX1, 72);
1118 skge_write8(hw, B3_MA_TOINI_RX2, 72);
1119 skge_write8(hw, B3_MA_TOINI_TX1, 72);
1120 skge_write8(hw, B3_MA_TOINI_TX2, 72);
1122 skge_write8(hw, B3_MA_RCINI_RX1, 0);
1123 skge_write8(hw, B3_MA_RCINI_RX2, 0);
1124 skge_write8(hw, B3_MA_RCINI_TX1, 0);
1125 skge_write8(hw, B3_MA_RCINI_TX2, 0);
1127 /* Configure Rx MAC FIFO */
1128 skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_CLR);
1129 skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_TIM_PAT);
1130 skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_ENA_OP_MD);
1132 /* Configure Tx MAC FIFO */
1133 skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_CLR);
1134 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_TX_CTRL_DEF);
1135 skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_ENA_OP_MD);
1137 if (hw->dev[port]->mtu > ETH_DATA_LEN) {
1138 /* Enable frame flushing if jumbo frames used */
1139 skge_write16(hw, SK_REG(port,RX_MFF_CTRL1), MFF_ENA_FLUSH);
1141 /* enable timeout timers if normal frames */
1142 skge_write16(hw, B3_PA_CTRL,
1143 port == 0 ? PA_ENA_TO_TX1 : PA_ENA_TO_TX2);
1147 r = xm_read16(hw, port, XM_RX_CMD);
1148 if (hw->dev[port]->mtu > ETH_DATA_LEN)
1149 xm_write16(hw, port, XM_RX_CMD, r | XM_RX_BIG_PK_OK);
1151 xm_write16(hw, port, XM_RX_CMD, r & ~(XM_RX_BIG_PK_OK));
1153 switch (hw->phy_type) {
1155 if (skge->autoneg == AUTONEG_ENABLE) {
1156 ctrl1 = PHY_X_AN_FD | PHY_X_AN_HD;
1158 switch (skge->flow_control) {
1159 case FLOW_MODE_NONE:
1160 ctrl1 |= PHY_X_P_NO_PAUSE;
1162 case FLOW_MODE_LOC_SEND:
1163 ctrl1 |= PHY_X_P_ASYM_MD;
1165 case FLOW_MODE_SYMMETRIC:
1166 ctrl1 |= PHY_X_P_SYM_MD;
1168 case FLOW_MODE_REM_SEND:
1169 ctrl1 |= PHY_X_P_BOTH_MD;
1173 xm_phy_write(hw, port, PHY_XMAC_AUNE_ADV, ctrl1);
1174 ctrl2 = PHY_CT_ANE | PHY_CT_RE_CFG;
1177 if (skge->duplex == DUPLEX_FULL)
1178 ctrl2 |= PHY_CT_DUP_MD;
1181 xm_phy_write(hw, port, PHY_XMAC_CTRL, ctrl2);
1185 ctrl1 = PHY_CT_SP1000;
1187 ctrl3 = PHY_AN_CSMA;
1188 ctrl4 = PHY_B_PEC_EN_LTR;
1189 ctrl5 = PHY_B_AC_TX_TST;
1191 if (skge->autoneg == AUTONEG_ENABLE) {
1193 * Workaround BCOM Errata #1 for the C5 type.
1194 * 1000Base-T Link Acquisition Failure in Slave Mode
1195 * Set Repeater/DTE bit 10 of the 1000Base-T Control Register
1197 ctrl2 |= PHY_B_1000C_RD;
1198 if (skge->advertising & ADVERTISED_1000baseT_Half)
1199 ctrl2 |= PHY_B_1000C_AHD;
1200 if (skge->advertising & ADVERTISED_1000baseT_Full)
1201 ctrl2 |= PHY_B_1000C_AFD;
1203 /* Set Flow-control capabilities */
1204 switch (skge->flow_control) {
1205 case FLOW_MODE_NONE:
1206 ctrl3 |= PHY_B_P_NO_PAUSE;
1208 case FLOW_MODE_LOC_SEND:
1209 ctrl3 |= PHY_B_P_ASYM_MD;
1211 case FLOW_MODE_SYMMETRIC:
1212 ctrl3 |= PHY_B_P_SYM_MD;
1214 case FLOW_MODE_REM_SEND:
1215 ctrl3 |= PHY_B_P_BOTH_MD;
1219 /* Restart Auto-negotiation */
1220 ctrl1 |= PHY_CT_ANE | PHY_CT_RE_CFG;
1222 if (skge->duplex == DUPLEX_FULL)
1223 ctrl1 |= PHY_CT_DUP_MD;
1225 ctrl2 |= PHY_B_1000C_MSE; /* set it to Slave */
1228 xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, ctrl2);
1229 xm_phy_write(hw, port, PHY_BCOM_AUNE_ADV, ctrl3);
1231 if (skge->netdev->mtu > ETH_DATA_LEN) {
1232 ctrl4 |= PHY_B_PEC_HIGH_LA;
1233 ctrl5 |= PHY_B_AC_LONG_PACK;
1235 xm_phy_write(hw, port,PHY_BCOM_AUX_CTRL, ctrl5);
1238 xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, ctrl4);
1239 xm_phy_write(hw, port, PHY_BCOM_CTRL, ctrl1);
1242 spin_unlock_bh(&hw->phy_lock);
1244 /* Clear MIB counters */
1245 xm_write16(hw, port, XM_STAT_CMD,
1246 XM_SC_CLR_RXC | XM_SC_CLR_TXC);
1247 /* Clear two times according to Errata #3 */
1248 xm_write16(hw, port, XM_STAT_CMD,
1249 XM_SC_CLR_RXC | XM_SC_CLR_TXC);
1251 /* Start polling for link status */
1252 mod_timer(&skge->link_check, jiffies + LINK_POLL_HZ);
1255 static void genesis_stop(struct skge_port *skge)
1257 struct skge_hw *hw = skge->hw;
1258 int port = skge->port;
1260 /* Clear Tx packet arbiter timeout IRQ */
1261 skge_write16(hw, B3_PA_CTRL,
1262 port == 0 ? PA_CLR_TO_TX1 : PA_CLR_TO_TX2);
1265 * If the transfer stucks at the MAC the STOP command will not
1266 * terminate if we don't flush the XMAC's transmit FIFO !
1268 xm_write32(hw, port, XM_MODE,
1269 xm_read32(hw, port, XM_MODE)|XM_MD_FTF);
1273 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_SET_MAC_RST);
1275 /* For external PHYs there must be special handling */
1276 if (hw->phy_type != SK_PHY_XMAC) {
1277 u32 reg = skge_read32(hw, B2_GP_IO);
1286 skge_write32(hw, B2_GP_IO, reg);
1287 skge_read32(hw, B2_GP_IO);
1290 xm_write16(hw, port, XM_MMU_CMD,
1291 xm_read16(hw, port, XM_MMU_CMD)
1292 & ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX));
1294 xm_read16(hw, port, XM_MMU_CMD);
1298 static void genesis_get_stats(struct skge_port *skge, u64 *data)
1300 struct skge_hw *hw = skge->hw;
1301 int port = skge->port;
1303 unsigned long timeout = jiffies + HZ;
1305 xm_write16(hw, port,
1306 XM_STAT_CMD, XM_SC_SNP_TXC | XM_SC_SNP_RXC);
1308 /* wait for update to complete */
1309 while (xm_read16(hw, port, XM_STAT_CMD)
1310 & (XM_SC_SNP_TXC | XM_SC_SNP_RXC)) {
1311 if (time_after(jiffies, timeout))
1316 /* special case for 64 bit octet counter */
1317 data[0] = (u64) xm_read32(hw, port, XM_TXO_OK_HI) << 32
1318 | xm_read32(hw, port, XM_TXO_OK_LO);
1319 data[1] = (u64) xm_read32(hw, port, XM_RXO_OK_HI) << 32
1320 | xm_read32(hw, port, XM_RXO_OK_LO);
1322 for (i = 2; i < ARRAY_SIZE(skge_stats); i++)
1323 data[i] = xm_read32(hw, port, skge_stats[i].xmac_offset);
1326 static void genesis_mac_intr(struct skge_hw *hw, int port)
1328 struct skge_port *skge = netdev_priv(hw->dev[port]);
1329 u16 status = xm_read16(hw, port, XM_ISRC);
1331 pr_debug("genesis_intr status %x\n", status);
1332 if (hw->phy_type == SK_PHY_XMAC) {
1333 /* LInk down, start polling for state change */
1334 if (status & XM_IS_INP_ASS) {
1335 xm_write16(hw, port, XM_IMSK,
1336 xm_read16(hw, port, XM_IMSK) | XM_IS_INP_ASS);
1337 mod_timer(&skge->link_check, jiffies + LINK_POLL_HZ);
1339 else if (status & XM_IS_AND)
1340 mod_timer(&skge->link_check, jiffies + LINK_POLL_HZ);
1343 if (status & XM_IS_TXF_UR) {
1344 xm_write32(hw, port, XM_MODE, XM_MD_FTF);
1345 ++skge->net_stats.tx_fifo_errors;
1347 if (status & XM_IS_RXF_OV) {
1348 xm_write32(hw, port, XM_MODE, XM_MD_FRF);
1349 ++skge->net_stats.rx_fifo_errors;
1353 static void gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val)
1357 gma_write16(hw, port, GM_SMI_DATA, val);
1358 gma_write16(hw, port, GM_SMI_CTRL,
1359 GM_SMI_CT_PHY_AD(hw->phy_addr) | GM_SMI_CT_REG_AD(reg));
1360 for (i = 0; i < PHY_RETRIES; i++) {
1363 if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY))
1368 static u16 gm_phy_read(struct skge_hw *hw, int port, u16 reg)
1372 gma_write16(hw, port, GM_SMI_CTRL,
1373 GM_SMI_CT_PHY_AD(hw->phy_addr)
1374 | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD);
1376 for (i = 0; i < PHY_RETRIES; i++) {
1378 if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL)
1382 printk(KERN_WARNING PFX "%s: phy read timeout\n",
1383 hw->dev[port]->name);
1386 return gma_read16(hw, port, GM_SMI_DATA);
1389 static void genesis_link_down(struct skge_port *skge)
1391 struct skge_hw *hw = skge->hw;
1392 int port = skge->port;
1394 pr_debug("genesis_link_down\n");
1396 xm_write16(hw, port, XM_MMU_CMD,
1397 xm_read16(hw, port, XM_MMU_CMD)
1398 & ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX));
1400 /* dummy read to ensure writing */
1401 (void) xm_read16(hw, port, XM_MMU_CMD);
1403 skge_link_down(skge);
1406 static void genesis_link_up(struct skge_port *skge)
1408 struct skge_hw *hw = skge->hw;
1409 int port = skge->port;
1413 pr_debug("genesis_link_up\n");
1414 cmd = xm_read16(hw, port, XM_MMU_CMD);
1417 * enabling pause frame reception is required for 1000BT
1418 * because the XMAC is not reset if the link is going down
1420 if (skge->flow_control == FLOW_MODE_NONE ||
1421 skge->flow_control == FLOW_MODE_LOC_SEND)
1422 cmd |= XM_MMU_IGN_PF;
1424 /* Enable Pause Frame Reception */
1425 cmd &= ~XM_MMU_IGN_PF;
1427 xm_write16(hw, port, XM_MMU_CMD, cmd);
1429 mode = xm_read32(hw, port, XM_MODE);
1430 if (skge->flow_control == FLOW_MODE_SYMMETRIC ||
1431 skge->flow_control == FLOW_MODE_LOC_SEND) {
1433 * Configure Pause Frame Generation
1434 * Use internal and external Pause Frame Generation.
1435 * Sending pause frames is edge triggered.
1436 * Send a Pause frame with the maximum pause time if
1437 * internal oder external FIFO full condition occurs.
1438 * Send a zero pause time frame to re-start transmission.
1440 /* XM_PAUSE_DA = '010000C28001' (default) */
1441 /* XM_MAC_PTIME = 0xffff (maximum) */
1442 /* remember this value is defined in big endian (!) */
1443 xm_write16(hw, port, XM_MAC_PTIME, 0xffff);
1445 mode |= XM_PAUSE_MODE;
1446 skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_PAUSE);
1449 * disable pause frame generation is required for 1000BT
1450 * because the XMAC is not reset if the link is going down
1452 /* Disable Pause Mode in Mode Register */
1453 mode &= ~XM_PAUSE_MODE;
1455 skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_DIS_PAUSE);
1458 xm_write32(hw, port, XM_MODE, mode);
1461 if (hw->phy_type != SK_PHY_XMAC)
1462 msk |= XM_IS_INP_ASS; /* disable GP0 interrupt bit */
1464 xm_write16(hw, port, XM_IMSK, msk);
1465 xm_read16(hw, port, XM_ISRC);
1467 /* get MMU Command Reg. */
1468 cmd = xm_read16(hw, port, XM_MMU_CMD);
1469 if (hw->phy_type != SK_PHY_XMAC && skge->duplex == DUPLEX_FULL)
1470 cmd |= XM_MMU_GMII_FD;
1472 if (hw->phy_type == SK_PHY_BCOM) {
1474 * Workaround BCOM Errata (#10523) for all BCom Phys
1475 * Enable Power Management after link up
1477 xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL,
1478 xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL)
1479 & ~PHY_B_AC_DIS_PM);
1480 xm_phy_write(hw, port, PHY_BCOM_INT_MASK,
1485 xm_write16(hw, port, XM_MMU_CMD,
1486 cmd | XM_MMU_ENA_RX | XM_MMU_ENA_TX);
1491 static void genesis_bcom_intr(struct skge_port *skge)
1493 struct skge_hw *hw = skge->hw;
1494 int port = skge->port;
1495 u16 stat = xm_phy_read(hw, port, PHY_BCOM_INT_STAT);
1497 pr_debug("genesis_bcom intr stat=%x\n", stat);
1499 /* Workaround BCom Errata:
1500 * enable and disable loopback mode if "NO HCD" occurs.
1502 if (stat & PHY_B_IS_NO_HDCL) {
1503 u16 ctrl = xm_phy_read(hw, port, PHY_BCOM_CTRL);
1504 xm_phy_write(hw, port, PHY_BCOM_CTRL,
1505 ctrl | PHY_CT_LOOP);
1506 xm_phy_write(hw, port, PHY_BCOM_CTRL,
1507 ctrl & ~PHY_CT_LOOP);
1510 stat = xm_phy_read(hw, port, PHY_BCOM_STAT);
1511 if (stat & (PHY_B_IS_AN_PR | PHY_B_IS_LST_CHANGE)) {
1512 u16 aux = xm_phy_read(hw, port, PHY_BCOM_AUX_STAT);
1513 if ( !(aux & PHY_B_AS_LS) && netif_carrier_ok(skge->netdev))
1514 genesis_link_down(skge);
1516 else if (stat & PHY_B_IS_LST_CHANGE) {
1517 if (aux & PHY_B_AS_AN_C) {
1518 switch (aux & PHY_B_AS_AN_RES_MSK) {
1519 case PHY_B_RES_1000FD:
1520 skge->duplex = DUPLEX_FULL;
1522 case PHY_B_RES_1000HD:
1523 skge->duplex = DUPLEX_HALF;
1527 switch (aux & PHY_B_AS_PAUSE_MSK) {
1528 case PHY_B_AS_PAUSE_MSK:
1529 skge->flow_control = FLOW_MODE_SYMMETRIC;
1532 skge->flow_control = FLOW_MODE_REM_SEND;
1535 skge->flow_control = FLOW_MODE_LOC_SEND;
1538 skge->flow_control = FLOW_MODE_NONE;
1540 skge->speed = SPEED_1000;
1542 genesis_link_up(skge);
1545 mod_timer(&skge->link_check, jiffies + LINK_POLL_HZ);
1549 /* Perodic poll of phy status to check for link transistion */
1550 static void skge_link_timer(unsigned long __arg)
1552 struct skge_port *skge = (struct skge_port *) __arg;
1553 struct skge_hw *hw = skge->hw;
1554 int port = skge->port;
1556 if (hw->chip_id != CHIP_ID_GENESIS || !netif_running(skge->netdev))
1559 spin_lock_bh(&hw->phy_lock);
1560 if (hw->phy_type == SK_PHY_BCOM)
1561 genesis_bcom_intr(skge);
1564 for (i = 0; i < 3; i++)
1565 if (xm_read16(hw, port, XM_ISRC) & XM_IS_INP_ASS)
1569 mod_timer(&skge->link_check, jiffies + LINK_POLL_HZ);
1571 genesis_link_up(skge);
1573 spin_unlock_bh(&hw->phy_lock);
1576 /* Marvell Phy Initailization */
1577 static void yukon_init(struct skge_hw *hw, int port)
1579 struct skge_port *skge = netdev_priv(hw->dev[port]);
1580 u16 ctrl, ct1000, adv;
1581 u16 ledctrl, ledover;
1583 pr_debug("yukon_init\n");
1584 if (skge->autoneg == AUTONEG_ENABLE) {
1585 u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
1587 ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK |
1588 PHY_M_EC_MAC_S_MSK);
1589 ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ);
1591 ectrl |= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1);
1593 gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl);
1596 ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
1597 if (skge->autoneg == AUTONEG_DISABLE)
1598 ctrl &= ~PHY_CT_ANE;
1600 ctrl |= PHY_CT_RESET;
1601 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
1607 if (skge->autoneg == AUTONEG_ENABLE) {
1609 if (skge->advertising & ADVERTISED_1000baseT_Full)
1610 ct1000 |= PHY_M_1000C_AFD;
1611 if (skge->advertising & ADVERTISED_1000baseT_Half)
1612 ct1000 |= PHY_M_1000C_AHD;
1613 if (skge->advertising & ADVERTISED_100baseT_Full)
1614 adv |= PHY_M_AN_100_FD;
1615 if (skge->advertising & ADVERTISED_100baseT_Half)
1616 adv |= PHY_M_AN_100_HD;
1617 if (skge->advertising & ADVERTISED_10baseT_Full)
1618 adv |= PHY_M_AN_10_FD;
1619 if (skge->advertising & ADVERTISED_10baseT_Half)
1620 adv |= PHY_M_AN_10_HD;
1622 /* Set Flow-control capabilities */
1623 switch (skge->flow_control) {
1624 case FLOW_MODE_NONE:
1625 adv |= PHY_B_P_NO_PAUSE;
1627 case FLOW_MODE_LOC_SEND:
1628 adv |= PHY_B_P_ASYM_MD;
1630 case FLOW_MODE_SYMMETRIC:
1631 adv |= PHY_B_P_SYM_MD;
1633 case FLOW_MODE_REM_SEND:
1634 adv |= PHY_B_P_BOTH_MD;
1637 } else { /* special defines for FIBER (88E1011S only) */
1638 adv |= PHY_M_AN_1000X_AHD | PHY_M_AN_1000X_AFD;
1640 /* Set Flow-control capabilities */
1641 switch (skge->flow_control) {
1642 case FLOW_MODE_NONE:
1643 adv |= PHY_M_P_NO_PAUSE_X;
1645 case FLOW_MODE_LOC_SEND:
1646 adv |= PHY_M_P_ASYM_MD_X;
1648 case FLOW_MODE_SYMMETRIC:
1649 adv |= PHY_M_P_SYM_MD_X;
1651 case FLOW_MODE_REM_SEND:
1652 adv |= PHY_M_P_BOTH_MD_X;
1656 /* Restart Auto-negotiation */
1657 ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG;
1659 /* forced speed/duplex settings */
1660 ct1000 = PHY_M_1000C_MSE;
1662 if (skge->duplex == DUPLEX_FULL)
1663 ctrl |= PHY_CT_DUP_MD;
1665 switch (skge->speed) {
1667 ctrl |= PHY_CT_SP1000;
1670 ctrl |= PHY_CT_SP100;
1674 ctrl |= PHY_CT_RESET;
1677 gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000);
1679 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv);
1680 gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
1682 /* Setup Phy LED's */
1683 ledctrl = PHY_M_LED_PULS_DUR(PULS_170MS);
1686 ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) | PHY_M_LEDC_TX_CTRL;
1688 /* turn off the Rx LED (LED_RX) */
1689 ledover |= PHY_M_LED_MO_RX(MO_LED_OFF);
1691 /* disable blink mode (LED_DUPLEX) on collisions */
1692 ctrl |= PHY_M_LEDC_DP_CTRL;
1693 gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
1695 if (skge->autoneg == AUTONEG_DISABLE || skge->speed == SPEED_100) {
1696 /* turn on 100 Mbps LED (LED_LINK100) */
1697 ledover |= PHY_M_LED_MO_100(MO_LED_ON);
1701 gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover);
1703 /* Enable phy interrupt on autonegotiation complete (or link up) */
1704 if (skge->autoneg == AUTONEG_ENABLE)
1705 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_COMPL);
1707 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
1710 static void yukon_reset(struct skge_hw *hw, int port)
1712 gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);/* disable PHY IRQs */
1713 gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */
1714 gma_write16(hw, port, GM_MC_ADDR_H2, 0);
1715 gma_write16(hw, port, GM_MC_ADDR_H3, 0);
1716 gma_write16(hw, port, GM_MC_ADDR_H4, 0);
1718 gma_write16(hw, port, GM_RX_CTRL,
1719 gma_read16(hw, port, GM_RX_CTRL)
1720 | GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
1723 static void yukon_mac_init(struct skge_hw *hw, int port)
1725 struct skge_port *skge = netdev_priv(hw->dev[port]);
1728 const u8 *addr = hw->dev[port]->dev_addr;
1730 /* WA code for COMA mode -- set PHY reset */
1731 if (hw->chip_id == CHIP_ID_YUKON_LITE &&
1732 hw->chip_rev == CHIP_REV_YU_LITE_A3)
1733 skge_write32(hw, B2_GP_IO,
1734 (skge_read32(hw, B2_GP_IO) | GP_DIR_9 | GP_IO_9));
1737 skge_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
1738 skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);
1740 /* WA code for COMA mode -- clear PHY reset */
1741 if (hw->chip_id == CHIP_ID_YUKON_LITE &&
1742 hw->chip_rev == CHIP_REV_YU_LITE_A3)
1743 skge_write32(hw, B2_GP_IO,
1744 (skge_read32(hw, B2_GP_IO) | GP_DIR_9)
1747 /* Set hardware config mode */
1748 reg = GPC_INT_POL_HI | GPC_DIS_FC | GPC_DIS_SLEEP |
1749 GPC_ENA_XC | GPC_ANEG_ADV_ALL_M | GPC_ENA_PAUSE;
1750 reg |= iscopper(hw) ? GPC_HWCFG_GMII_COP : GPC_HWCFG_GMII_FIB;
1752 /* Clear GMC reset */
1753 skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_SET);
1754 skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_CLR);
1755 skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON | GMC_RST_CLR);
1756 if (skge->autoneg == AUTONEG_DISABLE) {
1757 reg = GM_GPCR_AU_ALL_DIS;
1758 gma_write16(hw, port, GM_GP_CTRL,
1759 gma_read16(hw, port, GM_GP_CTRL) | reg);
1761 switch (skge->speed) {
1763 reg |= GM_GPCR_SPEED_1000;
1766 reg |= GM_GPCR_SPEED_100;
1769 if (skge->duplex == DUPLEX_FULL)
1770 reg |= GM_GPCR_DUP_FULL;
1772 reg = GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100 | GM_GPCR_DUP_FULL;
1773 switch (skge->flow_control) {
1774 case FLOW_MODE_NONE:
1775 skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
1776 reg |= GM_GPCR_FC_TX_DIS | GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
1778 case FLOW_MODE_LOC_SEND:
1779 /* disable Rx flow-control */
1780 reg |= GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
1783 gma_write16(hw, port, GM_GP_CTRL, reg);
1784 skge_read16(hw, GMAC_IRQ_SRC);
1786 spin_lock_bh(&hw->phy_lock);
1787 yukon_init(hw, port);
1788 spin_unlock_bh(&hw->phy_lock);
1791 reg = gma_read16(hw, port, GM_PHY_ADDR);
1792 gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR);
1794 for (i = 0; i < GM_MIB_CNT_SIZE; i++)
1795 gma_read16(hw, port, GM_MIB_CNT_BASE + 8*i);
1796 gma_write16(hw, port, GM_PHY_ADDR, reg);
1798 /* transmit control */
1799 gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF));
1801 /* receive control reg: unicast + multicast + no FCS */
1802 gma_write16(hw, port, GM_RX_CTRL,
1803 GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA);
1805 /* transmit flow control */
1806 gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff);
1808 /* transmit parameter */
1809 gma_write16(hw, port, GM_TX_PARAM,
1810 TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) |
1811 TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) |
1812 TX_IPG_JAM_DATA(TX_IPG_JAM_DEF));
1814 /* serial mode register */
1815 reg = GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);
1816 if (hw->dev[port]->mtu > 1500)
1817 reg |= GM_SMOD_JUMBO_ENA;
1819 gma_write16(hw, port, GM_SERIAL_MODE, reg);
1821 /* physical address: used for pause frames */
1822 gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr);
1823 /* virtual address for data */
1824 gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr);
1826 /* enable interrupt mask for counter overflows */
1827 gma_write16(hw, port, GM_TX_IRQ_MSK, 0);
1828 gma_write16(hw, port, GM_RX_IRQ_MSK, 0);
1829 gma_write16(hw, port, GM_TR_IRQ_MSK, 0);
1831 /* Initialize Mac Fifo */
1833 /* Configure Rx MAC FIFO */
1834 skge_write16(hw, SK_REG(port, RX_GMF_FL_MSK), RX_FF_FL_DEF_MSK);
1835 reg = GMF_OPER_ON | GMF_RX_F_FL_ON;
1836 if (hw->chip_id == CHIP_ID_YUKON_LITE &&
1837 hw->chip_rev == CHIP_REV_YU_LITE_A3)
1838 reg &= ~GMF_RX_F_FL_ON;
1839 skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
1840 skge_write16(hw, SK_REG(port, RX_GMF_CTRL_T), reg);
1841 skge_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF);
1843 /* Configure Tx MAC FIFO */
1844 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);
1845 skge_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);
1848 static void yukon_stop(struct skge_port *skge)
1850 struct skge_hw *hw = skge->hw;
1851 int port = skge->port;
1853 if (hw->chip_id == CHIP_ID_YUKON_LITE &&
1854 hw->chip_rev == CHIP_REV_YU_LITE_A3) {
1855 skge_write32(hw, B2_GP_IO,
1856 skge_read32(hw, B2_GP_IO) | GP_DIR_9 | GP_IO_9);
1859 gma_write16(hw, port, GM_GP_CTRL,
1860 gma_read16(hw, port, GM_GP_CTRL)
1861 & ~(GM_GPCR_RX_ENA|GM_GPCR_RX_ENA));
1862 gma_read16(hw, port, GM_GP_CTRL);
1864 /* set GPHY Control reset */
1865 gma_write32(hw, port, GPHY_CTRL, GPC_RST_SET);
1866 gma_write32(hw, port, GMAC_CTRL, GMC_RST_SET);
1869 static void yukon_get_stats(struct skge_port *skge, u64 *data)
1871 struct skge_hw *hw = skge->hw;
1872 int port = skge->port;
1875 data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32
1876 | gma_read32(hw, port, GM_TXO_OK_LO);
1877 data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32
1878 | gma_read32(hw, port, GM_RXO_OK_LO);
1880 for (i = 2; i < ARRAY_SIZE(skge_stats); i++)
1881 data[i] = gma_read32(hw, port,
1882 skge_stats[i].gma_offset);
1885 static void yukon_mac_intr(struct skge_hw *hw, int port)
1887 struct skge_port *skge = netdev_priv(hw->dev[port]);
1888 u8 status = skge_read8(hw, SK_REG(port, GMAC_IRQ_SRC));
1890 pr_debug("yukon_intr status %x\n", status);
1891 if (status & GM_IS_RX_FF_OR) {
1892 ++skge->net_stats.rx_fifo_errors;
1893 gma_write8(hw, port, RX_GMF_CTRL_T, GMF_CLI_RX_FO);
1895 if (status & GM_IS_TX_FF_UR) {
1896 ++skge->net_stats.tx_fifo_errors;
1897 gma_write8(hw, port, TX_GMF_CTRL_T, GMF_CLI_TX_FU);
1902 static u16 yukon_speed(const struct skge_hw *hw, u16 aux)
1904 switch (aux & PHY_M_PS_SPEED_MSK) {
1905 case PHY_M_PS_SPEED_1000:
1907 case PHY_M_PS_SPEED_100:
1914 static void yukon_link_up(struct skge_port *skge)
1916 struct skge_hw *hw = skge->hw;
1917 int port = skge->port;
1920 pr_debug("yukon_link_up\n");
1922 /* Enable Transmit FIFO Underrun */
1923 skge_write8(hw, GMAC_IRQ_MSK, GMAC_DEF_MSK);
1925 reg = gma_read16(hw, port, GM_GP_CTRL);
1926 if (skge->duplex == DUPLEX_FULL || skge->autoneg == AUTONEG_ENABLE)
1927 reg |= GM_GPCR_DUP_FULL;
1930 reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA;
1931 gma_write16(hw, port, GM_GP_CTRL, reg);
1933 gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
1937 static void yukon_link_down(struct skge_port *skge)
1939 struct skge_hw *hw = skge->hw;
1940 int port = skge->port;
1942 pr_debug("yukon_link_down\n");
1943 gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);
1944 gm_phy_write(hw, port, GM_GP_CTRL,
1945 gm_phy_read(hw, port, GM_GP_CTRL)
1946 & ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA));
1948 if (skge->flow_control == FLOW_MODE_REM_SEND) {
1949 /* restore Asymmetric Pause bit */
1950 gm_phy_write(hw, port, PHY_MARV_AUNE_ADV,
1951 gm_phy_read(hw, port,
1957 yukon_reset(hw, port);
1958 skge_link_down(skge);
1960 yukon_init(hw, port);
1963 static void yukon_phy_intr(struct skge_port *skge)
1965 struct skge_hw *hw = skge->hw;
1966 int port = skge->port;
1967 const char *reason = NULL;
1968 u16 istatus, phystat;
1970 istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT);
1971 phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT);
1972 pr_debug("yukon phy intr istat=%x phy_stat=%x\n", istatus, phystat);
1974 if (istatus & PHY_M_IS_AN_COMPL) {
1975 if (gm_phy_read(hw, port, PHY_MARV_AUNE_LP)
1977 reason = "remote fault";
1981 if (gm_phy_read(hw, port, PHY_MARV_1000T_STAT) & PHY_B_1000S_MSF) {
1982 reason = "master/slave fault";
1986 if (!(phystat & PHY_M_PS_SPDUP_RES)) {
1987 reason = "speed/duplex";
1991 skge->duplex = (phystat & PHY_M_PS_FULL_DUP)
1992 ? DUPLEX_FULL : DUPLEX_HALF;
1993 skge->speed = yukon_speed(hw, phystat);
1995 /* We are using IEEE 802.3z/D5.0 Table 37-4 */
1996 switch (phystat & PHY_M_PS_PAUSE_MSK) {
1997 case PHY_M_PS_PAUSE_MSK:
1998 skge->flow_control = FLOW_MODE_SYMMETRIC;
2000 case PHY_M_PS_RX_P_EN:
2001 skge->flow_control = FLOW_MODE_REM_SEND;
2003 case PHY_M_PS_TX_P_EN:
2004 skge->flow_control = FLOW_MODE_LOC_SEND;
2007 skge->flow_control = FLOW_MODE_NONE;
2010 if (skge->flow_control == FLOW_MODE_NONE ||
2011 (skge->speed < SPEED_1000 && skge->duplex == DUPLEX_HALF))
2012 skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
2014 skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
2015 yukon_link_up(skge);
2019 if (istatus & PHY_M_IS_LSP_CHANGE)
2020 skge->speed = yukon_speed(hw, phystat);
2022 if (istatus & PHY_M_IS_DUP_CHANGE)
2023 skge->duplex = (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;
2024 if (istatus & PHY_M_IS_LST_CHANGE) {
2025 if (phystat & PHY_M_PS_LINK_UP)
2026 yukon_link_up(skge);
2028 yukon_link_down(skge);
2032 printk(KERN_ERR PFX "%s: autonegotiation failed (%s)\n",
2033 skge->netdev->name, reason);
2035 /* XXX restart autonegotiation? */
2038 static void skge_ramset(struct skge_hw *hw, u16 q, u32 start, size_t len)
2044 end = start + len - 1;
2046 skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR);
2047 skge_write32(hw, RB_ADDR(q, RB_START), start);
2048 skge_write32(hw, RB_ADDR(q, RB_WP), start);
2049 skge_write32(hw, RB_ADDR(q, RB_RP), start);
2050 skge_write32(hw, RB_ADDR(q, RB_END), end);
2052 if (q == Q_R1 || q == Q_R2) {
2053 /* Set thresholds on receive queue's */
2054 skge_write32(hw, RB_ADDR(q, RB_RX_UTPP),
2056 skge_write32(hw, RB_ADDR(q, RB_RX_LTPP),
2059 /* Enable store & forward on Tx queue's because
2060 * Tx FIFO is only 4K on Genesis and 1K on Yukon
2062 skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD);
2065 skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD);
2068 /* Setup Bus Memory Interface */
2069 static void skge_qset(struct skge_port *skge, u16 q,
2070 const struct skge_element *e)
2072 struct skge_hw *hw = skge->hw;
2073 u32 watermark = 0x600;
2074 u64 base = skge->dma + (e->desc - skge->mem);
2076 /* optimization to reduce window on 32bit/33mhz */
2077 if ((skge_read16(hw, B0_CTST) & (CS_BUS_CLOCK | CS_BUS_SLOT_SZ)) == 0)
2080 skge_write32(hw, Q_ADDR(q, Q_CSR), CSR_CLR_RESET);
2081 skge_write32(hw, Q_ADDR(q, Q_F), watermark);
2082 skge_write32(hw, Q_ADDR(q, Q_DA_H), (u32)(base >> 32));
2083 skge_write32(hw, Q_ADDR(q, Q_DA_L), (u32)base);
2086 static int skge_up(struct net_device *dev)
2088 struct skge_port *skge = netdev_priv(dev);
2089 struct skge_hw *hw = skge->hw;
2090 int port = skge->port;
2091 u32 chunk, ram_addr;
2092 size_t rx_size, tx_size;
2095 if (netif_msg_ifup(skge))
2096 printk(KERN_INFO PFX "%s: enabling interface\n", dev->name);
2098 rx_size = skge->rx_ring.count * sizeof(struct skge_rx_desc);
2099 tx_size = skge->tx_ring.count * sizeof(struct skge_tx_desc);
2100 skge->mem_size = tx_size + rx_size;
2101 skge->mem = pci_alloc_consistent(hw->pdev, skge->mem_size, &skge->dma);
2105 memset(skge->mem, 0, skge->mem_size);
2107 if ((err = skge_ring_alloc(&skge->rx_ring, skge->mem, skge->dma)))
2110 if (skge_rx_fill(skge))
2113 if ((err = skge_ring_alloc(&skge->tx_ring, skge->mem + rx_size,
2114 skge->dma + rx_size)))
2117 skge->tx_avail = skge->tx_ring.count - 1;
2120 if (hw->chip_id == CHIP_ID_GENESIS)
2121 genesis_mac_init(hw, port);
2123 yukon_mac_init(hw, port);
2125 /* Configure RAMbuffers */
2126 chunk = hw->ram_size / ((hw->ports + 1)*2);
2127 ram_addr = hw->ram_offset + 2 * chunk * port;
2129 skge_ramset(hw, rxqaddr[port], ram_addr, chunk);
2130 skge_qset(skge, rxqaddr[port], skge->rx_ring.to_clean);
2132 BUG_ON(skge->tx_ring.to_use != skge->tx_ring.to_clean);
2133 skge_ramset(hw, txqaddr[port], ram_addr+chunk, chunk);
2134 skge_qset(skge, txqaddr[port], skge->tx_ring.to_use);
2136 /* Start receiver BMU */
2138 skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_START | CSR_IRQ_CL_F);
2140 pr_debug("skge_up completed\n");
2144 skge_rx_clean(skge);
2145 kfree(skge->rx_ring.start);
2147 pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma);
2152 static int skge_down(struct net_device *dev)
2154 struct skge_port *skge = netdev_priv(dev);
2155 struct skge_hw *hw = skge->hw;
2156 int port = skge->port;
2158 if (netif_msg_ifdown(skge))
2159 printk(KERN_INFO PFX "%s: disabling interface\n", dev->name);
2161 netif_stop_queue(dev);
2163 del_timer_sync(&skge->led_blink);
2164 del_timer_sync(&skge->link_check);
2166 /* Stop transmitter */
2167 skge_write8(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_STOP);
2168 skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL),
2169 RB_RST_SET|RB_DIS_OP_MD);
2171 if (hw->chip_id == CHIP_ID_GENESIS)
2176 /* Disable Force Sync bit and Enable Alloc bit */
2177 skge_write8(hw, SK_REG(port, TXA_CTRL),
2178 TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC);
2180 /* Stop Interval Timer and Limit Counter of Tx Arbiter */
2181 skge_write32(hw, SK_REG(port, TXA_ITI_INI), 0L);
2182 skge_write32(hw, SK_REG(port, TXA_LIM_INI), 0L);
2184 /* Reset PCI FIFO */
2185 skge_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_SET_RESET);
2186 skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET);
2188 /* Reset the RAM Buffer async Tx queue */
2189 skge_write8(hw, RB_ADDR(port == 0 ? Q_XA1 : Q_XA2, RB_CTRL), RB_RST_SET);
2191 skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_STOP);
2192 skge_write32(hw, RB_ADDR(port ? Q_R2 : Q_R1, RB_CTRL),
2193 RB_RST_SET|RB_DIS_OP_MD);
2194 skge_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_SET_RESET);
2196 if (hw->chip_id == CHIP_ID_GENESIS) {
2197 skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_SET);
2198 skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_SET);
2199 skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_STOP);
2200 skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_STOP);
2202 skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
2203 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET);
2206 /* turn off led's */
2207 skge_write16(hw, B0_LED, LED_STAT_OFF);
2209 skge_tx_clean(skge);
2210 skge_rx_clean(skge);
2212 kfree(skge->rx_ring.start);
2213 kfree(skge->tx_ring.start);
2214 pci_free_consistent(hw->pdev, skge->mem_size, skge->mem, skge->dma);
2218 static int skge_xmit_frame(struct sk_buff *skb, struct net_device *dev)
2220 struct skge_port *skge = netdev_priv(dev);
2221 struct skge_hw *hw = skge->hw;
2222 struct skge_ring *ring = &skge->tx_ring;
2223 struct skge_element *e;
2224 struct skge_tx_desc *td;
2228 unsigned long flags;
2230 skb = skb_padto(skb, ETH_ZLEN);
2232 return NETDEV_TX_OK;
2234 local_irq_save(flags);
2235 if (!spin_trylock(&skge->tx_lock)) {
2236 /* Collision - tell upper layer to requeue */
2237 local_irq_restore(flags);
2238 return NETDEV_TX_LOCKED;
2241 if (unlikely(skge->tx_avail < skb_shinfo(skb)->nr_frags +1)) {
2242 netif_stop_queue(dev);
2243 spin_unlock_irqrestore(&skge->tx_lock, flags);
2245 printk(KERN_WARNING PFX "%s: ring full when queue awake!\n",
2247 return NETDEV_TX_BUSY;
2253 len = skb_headlen(skb);
2254 map = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE);
2255 pci_unmap_addr_set(e, mapaddr, map);
2256 pci_unmap_len_set(e, maplen, len);
2259 td->dma_hi = map >> 32;
2261 if (skb->ip_summed == CHECKSUM_HW) {
2262 const struct iphdr *ip
2263 = (const struct iphdr *) (skb->data + ETH_HLEN);
2264 int offset = skb->h.raw - skb->data;
2266 /* This seems backwards, but it is what the sk98lin
2267 * does. Looks like hardware is wrong?
2269 if (ip->protocol == IPPROTO_UDP
2270 && hw->chip_rev == 0 && hw->chip_id == CHIP_ID_YUKON)
2271 control = BMU_TCP_CHECK;
2273 control = BMU_UDP_CHECK;
2276 td->csum_start = offset;
2277 td->csum_write = offset + skb->csum;
2279 control = BMU_CHECK;
2281 if (!skb_shinfo(skb)->nr_frags) /* single buffer i.e. no fragments */
2282 control |= BMU_EOF| BMU_IRQ_EOF;
2284 struct skge_tx_desc *tf = td;
2286 control |= BMU_STFWD;
2287 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
2288 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2290 map = pci_map_page(hw->pdev, frag->page, frag->page_offset,
2291 frag->size, PCI_DMA_TODEVICE);
2297 tf->dma_hi = (u64) map >> 32;
2298 pci_unmap_addr_set(e, mapaddr, map);
2299 pci_unmap_len_set(e, maplen, frag->size);
2301 tf->control = BMU_OWN | BMU_SW | control | frag->size;
2303 tf->control |= BMU_EOF | BMU_IRQ_EOF;
2305 /* Make sure all the descriptors written */
2307 td->control = BMU_OWN | BMU_SW | BMU_STF | control | len;
2310 skge_write8(hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_START);
2312 if (netif_msg_tx_queued(skge))
2313 printk(KERN_DEBUG "%s: tx queued, slot %td, len %d\n",
2314 dev->name, e - ring->start, skb->len);
2316 ring->to_use = e->next;
2317 skge->tx_avail -= skb_shinfo(skb)->nr_frags + 1;
2318 if (skge->tx_avail <= MAX_SKB_FRAGS + 1) {
2319 pr_debug("%s: transmit queue full\n", dev->name);
2320 netif_stop_queue(dev);
2323 dev->trans_start = jiffies;
2324 spin_unlock_irqrestore(&skge->tx_lock, flags);
2326 return NETDEV_TX_OK;
2329 static inline void skge_tx_free(struct skge_hw *hw, struct skge_element *e)
2332 pci_unmap_single(hw->pdev,
2333 pci_unmap_addr(e, mapaddr),
2334 pci_unmap_len(e, maplen),
2336 dev_kfree_skb_any(e->skb);
2339 pci_unmap_page(hw->pdev,
2340 pci_unmap_addr(e, mapaddr),
2341 pci_unmap_len(e, maplen),
2346 static void skge_tx_clean(struct skge_port *skge)
2348 struct skge_ring *ring = &skge->tx_ring;
2349 struct skge_element *e;
2350 unsigned long flags;
2352 spin_lock_irqsave(&skge->tx_lock, flags);
2353 for (e = ring->to_clean; e != ring->to_use; e = e->next) {
2355 skge_tx_free(skge->hw, e);
2358 spin_unlock_irqrestore(&skge->tx_lock, flags);
2361 static void skge_tx_timeout(struct net_device *dev)
2363 struct skge_port *skge = netdev_priv(dev);
2365 if (netif_msg_timer(skge))
2366 printk(KERN_DEBUG PFX "%s: tx timeout\n", dev->name);
2368 skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_STOP);
2369 skge_tx_clean(skge);
2372 static int skge_change_mtu(struct net_device *dev, int new_mtu)
2376 if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
2381 if (netif_running(dev)) {
2389 static void genesis_set_multicast(struct net_device *dev)
2391 struct skge_port *skge = netdev_priv(dev);
2392 struct skge_hw *hw = skge->hw;
2393 int port = skge->port;
2394 int i, count = dev->mc_count;
2395 struct dev_mc_list *list = dev->mc_list;
2399 mode = xm_read32(hw, port, XM_MODE);
2400 mode |= XM_MD_ENA_HASH;
2401 if (dev->flags & IFF_PROMISC)
2402 mode |= XM_MD_ENA_PROM;
2404 mode &= ~XM_MD_ENA_PROM;
2406 if (dev->flags & IFF_ALLMULTI)
2407 memset(filter, 0xff, sizeof(filter));
2409 memset(filter, 0, sizeof(filter));
2410 for (i = 0; list && i < count; i++, list = list->next) {
2411 u32 crc = crc32_le(~0, list->dmi_addr, ETH_ALEN);
2412 u8 bit = 63 - (crc & 63);
2414 filter[bit/8] |= 1 << (bit%8);
2418 xm_outhash(hw, port, XM_HSM, filter);
2420 xm_write32(hw, port, XM_MODE, mode);
2423 static void yukon_set_multicast(struct net_device *dev)
2425 struct skge_port *skge = netdev_priv(dev);
2426 struct skge_hw *hw = skge->hw;
2427 int port = skge->port;
2428 struct dev_mc_list *list = dev->mc_list;
2432 memset(filter, 0, sizeof(filter));
2434 reg = gma_read16(hw, port, GM_RX_CTRL);
2435 reg |= GM_RXCR_UCF_ENA;
2437 if (dev->flags & IFF_PROMISC) /* promiscious */
2438 reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
2439 else if (dev->flags & IFF_ALLMULTI) /* all multicast */
2440 memset(filter, 0xff, sizeof(filter));
2441 else if (dev->mc_count == 0) /* no multicast */
2442 reg &= ~GM_RXCR_MCF_ENA;
2445 reg |= GM_RXCR_MCF_ENA;
2447 for (i = 0; list && i < dev->mc_count; i++, list = list->next) {
2448 u32 bit = ether_crc(ETH_ALEN, list->dmi_addr) & 0x3f;
2449 filter[bit/8] |= 1 << (bit%8);
2454 gma_write16(hw, port, GM_MC_ADDR_H1,
2455 (u16)filter[0] | ((u16)filter[1] << 8));
2456 gma_write16(hw, port, GM_MC_ADDR_H2,
2457 (u16)filter[2] | ((u16)filter[3] << 8));
2458 gma_write16(hw, port, GM_MC_ADDR_H3,
2459 (u16)filter[4] | ((u16)filter[5] << 8));
2460 gma_write16(hw, port, GM_MC_ADDR_H4,
2461 (u16)filter[6] | ((u16)filter[7] << 8));
2463 gma_write16(hw, port, GM_RX_CTRL, reg);
2466 static inline int bad_phy_status(const struct skge_hw *hw, u32 status)
2468 if (hw->chip_id == CHIP_ID_GENESIS)
2469 return (status & (XMR_FS_ERR | XMR_FS_2L_VLAN)) != 0;
2471 return (status & GMR_FS_ANY_ERR) ||
2472 (status & GMR_FS_RX_OK) == 0;
2475 static void skge_rx_error(struct skge_port *skge, int slot,
2476 u32 control, u32 status)
2478 if (netif_msg_rx_err(skge))
2479 printk(KERN_DEBUG PFX "%s: rx err, slot %d control 0x%x status 0x%x\n",
2480 skge->netdev->name, slot, control, status);
2482 if ((control & (BMU_EOF|BMU_STF)) != (BMU_STF|BMU_EOF)
2483 || (control & BMU_BBC) > skge->netdev->mtu + VLAN_ETH_HLEN)
2484 skge->net_stats.rx_length_errors++;
2486 if (skge->hw->chip_id == CHIP_ID_GENESIS) {
2487 if (status & (XMR_FS_RUNT|XMR_FS_LNG_ERR))
2488 skge->net_stats.rx_length_errors++;
2489 if (status & XMR_FS_FRA_ERR)
2490 skge->net_stats.rx_frame_errors++;
2491 if (status & XMR_FS_FCS_ERR)
2492 skge->net_stats.rx_crc_errors++;
2494 if (status & (GMR_FS_LONG_ERR|GMR_FS_UN_SIZE))
2495 skge->net_stats.rx_length_errors++;
2496 if (status & GMR_FS_FRAGMENT)
2497 skge->net_stats.rx_frame_errors++;
2498 if (status & GMR_FS_CRC_ERR)
2499 skge->net_stats.rx_crc_errors++;
2504 static int skge_poll(struct net_device *dev, int *budget)
2506 struct skge_port *skge = netdev_priv(dev);
2507 struct skge_hw *hw = skge->hw;
2508 struct skge_ring *ring = &skge->rx_ring;
2509 struct skge_element *e;
2510 unsigned int to_do = min(dev->quota, *budget);
2511 unsigned int work_done = 0;
2513 static const u32 irqmask[] = { IS_PORT_1, IS_PORT_2 };
2515 for (e = ring->to_clean; e != ring->to_use && work_done < to_do;
2517 struct skge_rx_desc *rd = e->desc;
2518 struct sk_buff *skb = e->skb;
2519 u32 control, len, status;
2522 control = rd->control;
2523 if (control & BMU_OWN)
2526 len = control & BMU_BBC;
2529 pci_unmap_single(hw->pdev,
2530 pci_unmap_addr(e, mapaddr),
2531 pci_unmap_len(e, maplen),
2532 PCI_DMA_FROMDEVICE);
2534 status = rd->status;
2535 if ((control & (BMU_EOF|BMU_STF)) != (BMU_STF|BMU_EOF)
2536 || len > dev->mtu + VLAN_ETH_HLEN
2537 || bad_phy_status(hw, status)) {
2538 skge_rx_error(skge, e - ring->start, control, status);
2543 if (netif_msg_rx_status(skge))
2544 printk(KERN_DEBUG PFX "%s: rx slot %td status 0x%x len %d\n",
2545 dev->name, e - ring->start, rd->status, len);
2548 skb->protocol = eth_type_trans(skb, dev);
2550 if (skge->rx_csum) {
2551 skb->csum = le16_to_cpu(rd->csum2);
2552 skb->ip_summed = CHECKSUM_HW;
2555 dev->last_rx = jiffies;
2556 netif_receive_skb(skb);
2562 *budget -= work_done;
2563 dev->quota -= work_done;
2564 done = work_done < to_do;
2566 if (skge_rx_fill(skge))
2569 /* restart receiver */
2571 skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR),
2572 CSR_START | CSR_IRQ_CL_F);
2575 local_irq_disable();
2576 hw->intr_mask |= irqmask[skge->port];
2577 /* Order is important since data can get interrupted */
2578 skge_write32(hw, B0_IMSK, hw->intr_mask);
2579 __netif_rx_complete(dev);
2586 static inline void skge_tx_intr(struct net_device *dev)
2588 struct skge_port *skge = netdev_priv(dev);
2589 struct skge_hw *hw = skge->hw;
2590 struct skge_ring *ring = &skge->tx_ring;
2591 struct skge_element *e;
2593 spin_lock(&skge->tx_lock);
2594 for (e = ring->to_clean; e != ring->to_use; e = e->next) {
2595 struct skge_tx_desc *td = e->desc;
2599 control = td->control;
2600 if (control & BMU_OWN)
2603 if (unlikely(netif_msg_tx_done(skge)))
2604 printk(KERN_DEBUG PFX "%s: tx done slot %td status 0x%x\n",
2605 dev->name, e - ring->start, td->status);
2607 skge_tx_free(hw, e);
2612 skge_write8(hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F);
2614 if (skge->tx_avail > MAX_SKB_FRAGS + 1)
2615 netif_wake_queue(dev);
2617 spin_unlock(&skge->tx_lock);
2620 static void skge_mac_parity(struct skge_hw *hw, int port)
2622 printk(KERN_ERR PFX "%s: mac data parity error\n",
2623 hw->dev[port] ? hw->dev[port]->name
2624 : (port == 0 ? "(port A)": "(port B"));
2626 if (hw->chip_id == CHIP_ID_GENESIS)
2627 skge_write16(hw, SK_REG(port, TX_MFF_CTRL1),
2630 /* HW-Bug #8: cleared by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE */
2631 skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T),
2632 (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0)
2633 ? GMF_CLI_TX_FC : GMF_CLI_TX_PE);
2636 static void skge_pci_clear(struct skge_hw *hw)
2640 pci_read_config_word(hw->pdev, PCI_STATUS, &status);
2641 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
2642 pci_write_config_word(hw->pdev, PCI_STATUS,
2643 status | PCI_STATUS_ERROR_BITS);
2644 skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
2647 static void skge_mac_intr(struct skge_hw *hw, int port)
2649 if (hw->chip_id == CHIP_ID_GENESIS)
2650 genesis_mac_intr(hw, port);
2652 yukon_mac_intr(hw, port);
2655 /* Handle device specific framing and timeout interrupts */
2656 static void skge_error_irq(struct skge_hw *hw)
2658 u32 hwstatus = skge_read32(hw, B0_HWE_ISRC);
2660 if (hw->chip_id == CHIP_ID_GENESIS) {
2661 /* clear xmac errors */
2662 if (hwstatus & (IS_NO_STAT_M1|IS_NO_TIST_M1))
2663 skge_write16(hw, SK_REG(0, RX_MFF_CTRL1), MFF_CLR_INSTAT);
2664 if (hwstatus & (IS_NO_STAT_M2|IS_NO_TIST_M2))
2665 skge_write16(hw, SK_REG(0, RX_MFF_CTRL2), MFF_CLR_INSTAT);
2667 /* Timestamp (unused) overflow */
2668 if (hwstatus & IS_IRQ_TIST_OV)
2669 skge_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
2671 if (hwstatus & IS_IRQ_SENSOR) {
2672 /* no sensors on 32-bit Yukon */
2673 if (!(skge_read16(hw, B0_CTST) & CS_BUS_SLOT_SZ)) {
2674 printk(KERN_ERR PFX "ignoring bogus sensor interrups\n");
2675 skge_write32(hw, B0_HWE_IMSK,
2676 IS_ERR_MSK & ~IS_IRQ_SENSOR);
2678 printk(KERN_WARNING PFX "sensor interrupt\n");
2684 if (hwstatus & IS_RAM_RD_PAR) {
2685 printk(KERN_ERR PFX "Ram read data parity error\n");
2686 skge_write16(hw, B3_RI_CTRL, RI_CLR_RD_PERR);
2689 if (hwstatus & IS_RAM_WR_PAR) {
2690 printk(KERN_ERR PFX "Ram write data parity error\n");
2691 skge_write16(hw, B3_RI_CTRL, RI_CLR_WR_PERR);
2694 if (hwstatus & IS_M1_PAR_ERR)
2695 skge_mac_parity(hw, 0);
2697 if (hwstatus & IS_M2_PAR_ERR)
2698 skge_mac_parity(hw, 1);
2700 if (hwstatus & IS_R1_PAR_ERR)
2701 skge_write32(hw, B0_R1_CSR, CSR_IRQ_CL_P);
2703 if (hwstatus & IS_R2_PAR_ERR)
2704 skge_write32(hw, B0_R2_CSR, CSR_IRQ_CL_P);
2706 if (hwstatus & (IS_IRQ_MST_ERR|IS_IRQ_STAT)) {
2707 printk(KERN_ERR PFX "hardware error detected (status 0x%x)\n",
2712 hwstatus = skge_read32(hw, B0_HWE_ISRC);
2713 if (hwstatus & IS_IRQ_STAT) {
2714 printk(KERN_WARNING PFX "IRQ status %x: still set ignoring hardware errors\n",
2716 hw->intr_mask &= ~IS_HW_ERR;
2722 * Interrrupt from PHY are handled in tasklet (soft irq)
2723 * because accessing phy registers requires spin wait which might
2724 * cause excess interrupt latency.
2726 static void skge_extirq(unsigned long data)
2728 struct skge_hw *hw = (struct skge_hw *) data;
2731 spin_lock(&hw->phy_lock);
2732 for (port = 0; port < 2; port++) {
2733 struct net_device *dev = hw->dev[port];
2735 if (dev && netif_running(dev)) {
2736 struct skge_port *skge = netdev_priv(dev);
2738 if (hw->chip_id != CHIP_ID_GENESIS)
2739 yukon_phy_intr(skge);
2740 else if (hw->phy_type == SK_PHY_BCOM)
2741 genesis_bcom_intr(skge);
2744 spin_unlock(&hw->phy_lock);
2746 local_irq_disable();
2747 hw->intr_mask |= IS_EXT_REG;
2748 skge_write32(hw, B0_IMSK, hw->intr_mask);
2752 static irqreturn_t skge_intr(int irq, void *dev_id, struct pt_regs *regs)
2754 struct skge_hw *hw = dev_id;
2755 u32 status = skge_read32(hw, B0_SP_ISRC);
2757 if (status == 0 || status == ~0) /* hotplug or shared irq */
2760 status &= hw->intr_mask;
2762 if ((status & IS_R1_F) && netif_rx_schedule_prep(hw->dev[0])) {
2764 hw->intr_mask &= ~IS_R1_F;
2765 skge_write32(hw, B0_IMSK, hw->intr_mask);
2766 __netif_rx_schedule(hw->dev[0]);
2769 if ((status & IS_R2_F) && netif_rx_schedule_prep(hw->dev[1])) {
2771 hw->intr_mask &= ~IS_R2_F;
2772 skge_write32(hw, B0_IMSK, hw->intr_mask);
2773 __netif_rx_schedule(hw->dev[1]);
2776 if (status & IS_XA1_F)
2777 skge_tx_intr(hw->dev[0]);
2779 if (status & IS_XA2_F)
2780 skge_tx_intr(hw->dev[1]);
2782 if (status & IS_MAC1)
2783 skge_mac_intr(hw, 0);
2785 if (status & IS_MAC2)
2786 skge_mac_intr(hw, 1);
2788 if (status & IS_HW_ERR)
2791 if (status & IS_EXT_REG) {
2792 hw->intr_mask &= ~IS_EXT_REG;
2793 tasklet_schedule(&hw->ext_tasklet);
2797 skge_write32(hw, B0_IMSK, hw->intr_mask);
2802 #ifdef CONFIG_NET_POLL_CONTROLLER
2803 static void skge_netpoll(struct net_device *dev)
2805 struct skge_port *skge = netdev_priv(dev);
2807 disable_irq(dev->irq);
2808 skge_intr(dev->irq, skge->hw, NULL);
2809 enable_irq(dev->irq);
2813 static int skge_set_mac_address(struct net_device *dev, void *p)
2815 struct skge_port *skge = netdev_priv(dev);
2816 struct sockaddr *addr = p;
2819 if (!is_valid_ether_addr(addr->sa_data))
2820 return -EADDRNOTAVAIL;
2823 memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
2824 memcpy_toio(skge->hw->regs + B2_MAC_1 + skge->port*8,
2825 dev->dev_addr, ETH_ALEN);
2826 memcpy_toio(skge->hw->regs + B2_MAC_2 + skge->port*8,
2827 dev->dev_addr, ETH_ALEN);
2828 if (dev->flags & IFF_UP)
2833 static const struct {
2837 { CHIP_ID_GENESIS, "Genesis" },
2838 { CHIP_ID_YUKON, "Yukon" },
2839 { CHIP_ID_YUKON_LITE, "Yukon-Lite"},
2840 { CHIP_ID_YUKON_LP, "Yukon-LP"},
2843 static const char *skge_board_name(const struct skge_hw *hw)
2846 static char buf[16];
2848 for (i = 0; i < ARRAY_SIZE(skge_chips); i++)
2849 if (skge_chips[i].id == hw->chip_id)
2850 return skge_chips[i].name;
2852 snprintf(buf, sizeof buf, "chipid 0x%x", hw->chip_id);
2858 * Setup the board data structure, but don't bring up
2861 static int skge_reset(struct skge_hw *hw)
2867 ctst = skge_read16(hw, B0_CTST);
2870 skge_write8(hw, B0_CTST, CS_RST_SET);
2871 skge_write8(hw, B0_CTST, CS_RST_CLR);
2873 /* clear PCI errors, if any */
2876 skge_write8(hw, B0_CTST, CS_MRST_CLR);
2878 /* restore CLK_RUN bits (for Yukon-Lite) */
2879 skge_write16(hw, B0_CTST,
2880 ctst & (CS_CLK_RUN_HOT|CS_CLK_RUN_RST|CS_CLK_RUN_ENA));
2882 hw->chip_id = skge_read8(hw, B2_CHIP_ID);
2883 hw->phy_type = skge_read8(hw, B2_E_1) & 0xf;
2884 hw->pmd_type = skge_read8(hw, B2_PMD_TYP);
2886 switch (hw->chip_id) {
2887 case CHIP_ID_GENESIS:
2888 switch (hw->phy_type) {
2890 hw->phy_addr = PHY_ADDR_XMAC;
2893 hw->phy_addr = PHY_ADDR_BCOM;
2896 printk(KERN_ERR PFX "%s: unsupported phy type 0x%x\n",
2897 pci_name(hw->pdev), hw->phy_type);
2903 case CHIP_ID_YUKON_LITE:
2904 case CHIP_ID_YUKON_LP:
2905 if (hw->phy_type < SK_PHY_MARV_COPPER && hw->pmd_type != 'S')
2906 hw->phy_type = SK_PHY_MARV_COPPER;
2908 hw->phy_addr = PHY_ADDR_MARV;
2910 hw->phy_type = SK_PHY_MARV_FIBER;
2915 printk(KERN_ERR PFX "%s: unsupported chip type 0x%x\n",
2916 pci_name(hw->pdev), hw->chip_id);
2920 mac_cfg = skge_read8(hw, B2_MAC_CFG);
2921 hw->ports = (mac_cfg & CFG_SNG_MAC) ? 1 : 2;
2922 hw->chip_rev = (mac_cfg & CFG_CHIP_R_MSK) >> 4;
2924 /* read the adapters RAM size */
2925 t8 = skge_read8(hw, B2_E_0);
2926 if (hw->chip_id == CHIP_ID_GENESIS) {
2928 /* special case: 4 x 64k x 36, offset = 0x80000 */
2929 hw->ram_size = 0x100000;
2930 hw->ram_offset = 0x80000;
2932 hw->ram_size = t8 * 512;
2935 hw->ram_size = 0x20000;
2937 hw->ram_size = t8 * 4096;
2939 if (hw->chip_id == CHIP_ID_GENESIS)
2942 /* switch power to VCC (WA for VAUX problem) */
2943 skge_write8(hw, B0_POWER_CTRL,
2944 PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON);
2945 for (i = 0; i < hw->ports; i++) {
2946 skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET);
2947 skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR);
2951 /* turn off hardware timer (unused) */
2952 skge_write8(hw, B2_TI_CTRL, TIM_STOP);
2953 skge_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ);
2954 skge_write8(hw, B0_LED, LED_STAT_ON);
2956 /* enable the Tx Arbiters */
2957 for (i = 0; i < hw->ports; i++)
2958 skge_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB);
2960 /* Initialize ram interface */
2961 skge_write16(hw, B3_RI_CTRL, RI_RST_CLR);
2963 skge_write8(hw, B3_RI_WTO_R1, SK_RI_TO_53);
2964 skge_write8(hw, B3_RI_WTO_XA1, SK_RI_TO_53);
2965 skge_write8(hw, B3_RI_WTO_XS1, SK_RI_TO_53);
2966 skge_write8(hw, B3_RI_RTO_R1, SK_RI_TO_53);
2967 skge_write8(hw, B3_RI_RTO_XA1, SK_RI_TO_53);
2968 skge_write8(hw, B3_RI_RTO_XS1, SK_RI_TO_53);
2969 skge_write8(hw, B3_RI_WTO_R2, SK_RI_TO_53);
2970 skge_write8(hw, B3_RI_WTO_XA2, SK_RI_TO_53);
2971 skge_write8(hw, B3_RI_WTO_XS2, SK_RI_TO_53);
2972 skge_write8(hw, B3_RI_RTO_R2, SK_RI_TO_53);
2973 skge_write8(hw, B3_RI_RTO_XA2, SK_RI_TO_53);
2974 skge_write8(hw, B3_RI_RTO_XS2, SK_RI_TO_53);
2976 skge_write32(hw, B0_HWE_IMSK, IS_ERR_MSK);
2978 /* Set interrupt moderation for Transmit only
2979 * Receive interrupts avoided by NAPI
2981 skge_write32(hw, B2_IRQM_MSK, IS_XA1_F|IS_XA2_F);
2982 skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, 100));
2983 skge_write32(hw, B2_IRQM_CTRL, TIM_START);
2985 hw->intr_mask = IS_HW_ERR | IS_EXT_REG | IS_PORT_1;
2987 hw->intr_mask |= IS_PORT_2;
2988 skge_write32(hw, B0_IMSK, hw->intr_mask);
2990 if (hw->chip_id != CHIP_ID_GENESIS)
2991 skge_write8(hw, GMAC_IRQ_MSK, 0);
2993 spin_lock_bh(&hw->phy_lock);
2994 for (i = 0; i < hw->ports; i++) {
2995 if (hw->chip_id == CHIP_ID_GENESIS)
2996 genesis_reset(hw, i);
3000 spin_unlock_bh(&hw->phy_lock);
3005 /* Initialize network device */
3006 static struct net_device *skge_devinit(struct skge_hw *hw, int port,
3009 struct skge_port *skge;
3010 struct net_device *dev = alloc_etherdev(sizeof(*skge));
3013 printk(KERN_ERR "skge etherdev alloc failed");
3017 SET_MODULE_OWNER(dev);
3018 SET_NETDEV_DEV(dev, &hw->pdev->dev);
3019 dev->open = skge_up;
3020 dev->stop = skge_down;
3021 dev->hard_start_xmit = skge_xmit_frame;
3022 dev->get_stats = skge_get_stats;
3023 if (hw->chip_id == CHIP_ID_GENESIS)
3024 dev->set_multicast_list = genesis_set_multicast;
3026 dev->set_multicast_list = yukon_set_multicast;
3028 dev->set_mac_address = skge_set_mac_address;
3029 dev->change_mtu = skge_change_mtu;
3030 SET_ETHTOOL_OPS(dev, &skge_ethtool_ops);
3031 dev->tx_timeout = skge_tx_timeout;
3032 dev->watchdog_timeo = TX_WATCHDOG;
3033 dev->poll = skge_poll;
3034 dev->weight = NAPI_WEIGHT;
3035 #ifdef CONFIG_NET_POLL_CONTROLLER
3036 dev->poll_controller = skge_netpoll;
3038 dev->irq = hw->pdev->irq;
3039 dev->features = NETIF_F_LLTX;
3041 dev->features |= NETIF_F_HIGHDMA;
3043 skge = netdev_priv(dev);
3046 skge->msg_enable = netif_msg_init(debug, default_msg);
3047 skge->tx_ring.count = DEFAULT_TX_RING_SIZE;
3048 skge->rx_ring.count = DEFAULT_RX_RING_SIZE;
3050 /* Auto speed and flow control */
3051 skge->autoneg = AUTONEG_ENABLE;
3052 skge->flow_control = FLOW_MODE_SYMMETRIC;
3055 skge->advertising = skge_modes(hw);
3057 hw->dev[port] = dev;
3061 spin_lock_init(&skge->tx_lock);
3063 init_timer(&skge->link_check);
3064 skge->link_check.function = skge_link_timer;
3065 skge->link_check.data = (unsigned long) skge;
3067 init_timer(&skge->led_blink);
3068 skge->led_blink.function = skge_blink_timer;
3069 skge->led_blink.data = (unsigned long) skge;
3071 if (hw->chip_id != CHIP_ID_GENESIS) {
3072 dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
3076 /* read the mac address */
3077 memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port*8, ETH_ALEN);
3079 /* device is off until link detection */
3080 netif_carrier_off(dev);
3081 netif_stop_queue(dev);
3086 static void __devinit skge_show_addr(struct net_device *dev)
3088 const struct skge_port *skge = netdev_priv(dev);
3090 if (netif_msg_probe(skge))
3091 printk(KERN_INFO PFX "%s: addr %02x:%02x:%02x:%02x:%02x:%02x\n",
3093 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
3094 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
3097 static int __devinit skge_probe(struct pci_dev *pdev,
3098 const struct pci_device_id *ent)
3100 struct net_device *dev, *dev1;
3102 int err, using_dac = 0;
3104 if ((err = pci_enable_device(pdev))) {
3105 printk(KERN_ERR PFX "%s cannot enable PCI device\n",
3110 if ((err = pci_request_regions(pdev, DRV_NAME))) {
3111 printk(KERN_ERR PFX "%s cannot obtain PCI resources\n",
3113 goto err_out_disable_pdev;
3116 pci_set_master(pdev);
3118 if (!(err = pci_set_dma_mask(pdev, DMA_64BIT_MASK)))
3120 else if (!(err = pci_set_dma_mask(pdev, DMA_32BIT_MASK))) {
3121 printk(KERN_ERR PFX "%s no usable DMA configuration\n",
3123 goto err_out_free_regions;
3127 /* byte swap decriptors in hardware */
3131 pci_read_config_dword(pdev, PCI_DEV_REG2, ®);
3132 reg |= PCI_REV_DESC;
3133 pci_write_config_dword(pdev, PCI_DEV_REG2, reg);
3138 hw = kmalloc(sizeof(*hw), GFP_KERNEL);
3140 printk(KERN_ERR PFX "%s: cannot allocate hardware struct\n",
3142 goto err_out_free_regions;
3145 memset(hw, 0, sizeof(*hw));
3147 spin_lock_init(&hw->phy_lock);
3148 tasklet_init(&hw->ext_tasklet, skge_extirq, (unsigned long) hw);
3150 hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000);
3152 printk(KERN_ERR PFX "%s: cannot map device registers\n",
3154 goto err_out_free_hw;
3157 if ((err = request_irq(pdev->irq, skge_intr, SA_SHIRQ, DRV_NAME, hw))) {
3158 printk(KERN_ERR PFX "%s: cannot assign irq %d\n",
3159 pci_name(pdev), pdev->irq);
3160 goto err_out_iounmap;
3162 pci_set_drvdata(pdev, hw);
3164 err = skge_reset(hw);
3166 goto err_out_free_irq;
3168 printk(KERN_INFO PFX "addr 0x%lx irq %d chip %s rev %d\n",
3169 pci_resource_start(pdev, 0), pdev->irq,
3170 skge_board_name(hw), hw->chip_rev);
3172 if ((dev = skge_devinit(hw, 0, using_dac)) == NULL)
3173 goto err_out_led_off;
3175 if ((err = register_netdev(dev))) {
3176 printk(KERN_ERR PFX "%s: cannot register net device\n",
3178 goto err_out_free_netdev;
3181 skge_show_addr(dev);
3183 if (hw->ports > 1 && (dev1 = skge_devinit(hw, 1, using_dac))) {
3184 if (register_netdev(dev1) == 0)
3185 skge_show_addr(dev1);
3187 /* Failure to register second port need not be fatal */
3188 printk(KERN_WARNING PFX "register of second port failed\n");
3196 err_out_free_netdev:
3199 skge_write16(hw, B0_LED, LED_STAT_OFF);
3201 free_irq(pdev->irq, hw);
3206 err_out_free_regions:
3207 pci_release_regions(pdev);
3208 err_out_disable_pdev:
3209 pci_disable_device(pdev);
3210 pci_set_drvdata(pdev, NULL);
3215 static void __devexit skge_remove(struct pci_dev *pdev)
3217 struct skge_hw *hw = pci_get_drvdata(pdev);
3218 struct net_device *dev0, *dev1;
3223 if ((dev1 = hw->dev[1]))
3224 unregister_netdev(dev1);
3226 unregister_netdev(dev0);
3228 tasklet_kill(&hw->ext_tasklet);
3230 free_irq(pdev->irq, hw);
3231 pci_release_regions(pdev);
3232 pci_disable_device(pdev);
3236 skge_write16(hw, B0_LED, LED_STAT_OFF);
3239 pci_set_drvdata(pdev, NULL);
3243 static int skge_suspend(struct pci_dev *pdev, u32 state)
3245 struct skge_hw *hw = pci_get_drvdata(pdev);
3248 for (i = 0; i < 2; i++) {
3249 struct net_device *dev = hw->dev[i];
3252 struct skge_port *skge = netdev_priv(dev);
3253 if (netif_running(dev)) {
3254 netif_carrier_off(dev);
3257 netif_device_detach(dev);
3262 pci_save_state(pdev);
3263 pci_enable_wake(pdev, state, wol);
3264 pci_disable_device(pdev);
3265 pci_set_power_state(pdev, pci_choose_state(pdev, state));
3270 static int skge_resume(struct pci_dev *pdev)
3272 struct skge_hw *hw = pci_get_drvdata(pdev);
3275 pci_set_power_state(pdev, PCI_D0);
3276 pci_restore_state(pdev);
3277 pci_enable_wake(pdev, PCI_D0, 0);
3281 for (i = 0; i < 2; i++) {
3282 struct net_device *dev = hw->dev[i];
3284 netif_device_attach(dev);
3285 if (netif_running(dev))
3293 static struct pci_driver skge_driver = {
3295 .id_table = skge_id_table,
3296 .probe = skge_probe,
3297 .remove = __devexit_p(skge_remove),
3299 .suspend = skge_suspend,
3300 .resume = skge_resume,
3304 static int __init skge_init_module(void)
3306 return pci_module_init(&skge_driver);
3309 static void __exit skge_cleanup_module(void)
3311 pci_unregister_driver(&skge_driver);
3314 module_init(skge_init_module);
3315 module_exit(skge_cleanup_module);