2 * New driver for Marvell Yukon chipset and SysKonnect Gigabit
3 * Ethernet adapters. Based on earlier sk98lin, e100 and
4 * FreeBSD if_sk drivers.
6 * This driver intentionally does not support all the features
7 * of the original driver such as link fail-over and link management because
8 * those should be done at higher levels.
10 * Copyright (C) 2004, 2005 Stephen Hemminger <shemminger@osdl.org>
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 #include <linux/config.h>
29 #include <linux/kernel.h>
30 #include <linux/module.h>
31 #include <linux/moduleparam.h>
32 #include <linux/netdevice.h>
33 #include <linux/etherdevice.h>
34 #include <linux/ethtool.h>
35 #include <linux/pci.h>
36 #include <linux/if_vlan.h>
38 #include <linux/delay.h>
39 #include <linux/crc32.h>
40 #include <linux/dma-mapping.h>
41 #include <linux/mii.h>
46 #define DRV_NAME "skge"
47 #define DRV_VERSION "1.3"
48 #define PFX DRV_NAME " "
50 #define DEFAULT_TX_RING_SIZE 128
51 #define DEFAULT_RX_RING_SIZE 512
52 #define MAX_TX_RING_SIZE 1024
53 #define MAX_RX_RING_SIZE 4096
54 #define RX_COPY_THRESHOLD 128
55 #define RX_BUF_SIZE 1536
56 #define PHY_RETRIES 1000
57 #define ETH_JUMBO_MTU 9000
58 #define TX_WATCHDOG (5 * HZ)
59 #define NAPI_WEIGHT 64
62 MODULE_DESCRIPTION("SysKonnect Gigabit Ethernet driver");
63 MODULE_AUTHOR("Stephen Hemminger <shemminger@osdl.org>");
64 MODULE_LICENSE("GPL");
65 MODULE_VERSION(DRV_VERSION
);
67 static const u32 default_msg
68 = NETIF_MSG_DRV
| NETIF_MSG_PROBE
| NETIF_MSG_LINK
69 | NETIF_MSG_IFUP
| NETIF_MSG_IFDOWN
;
71 static int debug
= -1; /* defaults above */
72 module_param(debug
, int, 0);
73 MODULE_PARM_DESC(debug
, "Debug level (0=none,...,16=all)");
75 static const struct pci_device_id skge_id_table
[] = {
76 { PCI_DEVICE(PCI_VENDOR_ID_3COM
, PCI_DEVICE_ID_3COM_3C940
) },
77 { PCI_DEVICE(PCI_VENDOR_ID_3COM
, PCI_DEVICE_ID_3COM_3C940B
) },
78 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT
, PCI_DEVICE_ID_SYSKONNECT_GE
) },
79 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT
, PCI_DEVICE_ID_SYSKONNECT_YU
) },
80 { PCI_DEVICE(PCI_VENDOR_ID_DLINK
, PCI_DEVICE_ID_DLINK_DGE510T
), },
81 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4320) },
82 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x5005) }, /* Belkin */
83 { PCI_DEVICE(PCI_VENDOR_ID_CNET
, PCI_DEVICE_ID_CNET_GIGACARD
) },
84 { PCI_DEVICE(PCI_VENDOR_ID_LINKSYS
, PCI_DEVICE_ID_LINKSYS_EG1064
) },
85 { PCI_VENDOR_ID_LINKSYS
, 0x1032, PCI_ANY_ID
, 0x0015, },
88 MODULE_DEVICE_TABLE(pci
, skge_id_table
);
90 static int skge_up(struct net_device
*dev
);
91 static int skge_down(struct net_device
*dev
);
92 static void skge_phy_reset(struct skge_port
*skge
);
93 static void skge_tx_clean(struct skge_port
*skge
);
94 static int xm_phy_write(struct skge_hw
*hw
, int port
, u16 reg
, u16 val
);
95 static int gm_phy_write(struct skge_hw
*hw
, int port
, u16 reg
, u16 val
);
96 static void genesis_get_stats(struct skge_port
*skge
, u64
*data
);
97 static void yukon_get_stats(struct skge_port
*skge
, u64
*data
);
98 static void yukon_init(struct skge_hw
*hw
, int port
);
99 static void genesis_mac_init(struct skge_hw
*hw
, int port
);
100 static void genesis_link_up(struct skge_port
*skge
);
102 /* Avoid conditionals by using array */
103 static const int txqaddr
[] = { Q_XA1
, Q_XA2
};
104 static const int rxqaddr
[] = { Q_R1
, Q_R2
};
105 static const u32 rxirqmask
[] = { IS_R1_F
, IS_R2_F
};
106 static const u32 txirqmask
[] = { IS_XA1_F
, IS_XA2_F
};
108 static int skge_get_regs_len(struct net_device
*dev
)
114 * Returns copy of whole control register region
115 * Note: skip RAM address register because accessing it will
118 static void skge_get_regs(struct net_device
*dev
, struct ethtool_regs
*regs
,
121 const struct skge_port
*skge
= netdev_priv(dev
);
122 const void __iomem
*io
= skge
->hw
->regs
;
125 memset(p
, 0, regs
->len
);
126 memcpy_fromio(p
, io
, B3_RAM_ADDR
);
128 memcpy_fromio(p
+ B3_RI_WTO_R1
, io
+ B3_RI_WTO_R1
,
129 regs
->len
- B3_RI_WTO_R1
);
132 /* Wake on Lan only supported on Yukon chips with rev 1 or above */
133 static int wol_supported(const struct skge_hw
*hw
)
135 return !((hw
->chip_id
== CHIP_ID_GENESIS
||
136 (hw
->chip_id
== CHIP_ID_YUKON
&& hw
->chip_rev
== 0)));
139 static void skge_get_wol(struct net_device
*dev
, struct ethtool_wolinfo
*wol
)
141 struct skge_port
*skge
= netdev_priv(dev
);
143 wol
->supported
= wol_supported(skge
->hw
) ? WAKE_MAGIC
: 0;
144 wol
->wolopts
= skge
->wol
? WAKE_MAGIC
: 0;
147 static int skge_set_wol(struct net_device
*dev
, struct ethtool_wolinfo
*wol
)
149 struct skge_port
*skge
= netdev_priv(dev
);
150 struct skge_hw
*hw
= skge
->hw
;
152 if (wol
->wolopts
!= WAKE_MAGIC
&& wol
->wolopts
!= 0)
155 if (wol
->wolopts
== WAKE_MAGIC
&& !wol_supported(hw
))
158 skge
->wol
= wol
->wolopts
== WAKE_MAGIC
;
161 memcpy_toio(hw
->regs
+ WOL_MAC_ADDR
, dev
->dev_addr
, ETH_ALEN
);
163 skge_write16(hw
, WOL_CTRL_STAT
,
164 WOL_CTL_ENA_PME_ON_MAGIC_PKT
|
165 WOL_CTL_ENA_MAGIC_PKT_UNIT
);
167 skge_write16(hw
, WOL_CTRL_STAT
, WOL_CTL_DEFAULT
);
172 /* Determine supported/advertised modes based on hardware.
173 * Note: ethtool ADVERTISED_xxx == SUPPORTED_xxx
175 static u32
skge_supported_modes(const struct skge_hw
*hw
)
180 supported
= SUPPORTED_10baseT_Half
181 | SUPPORTED_10baseT_Full
182 | SUPPORTED_100baseT_Half
183 | SUPPORTED_100baseT_Full
184 | SUPPORTED_1000baseT_Half
185 | SUPPORTED_1000baseT_Full
186 | SUPPORTED_Autoneg
| SUPPORTED_TP
;
188 if (hw
->chip_id
== CHIP_ID_GENESIS
)
189 supported
&= ~(SUPPORTED_10baseT_Half
190 | SUPPORTED_10baseT_Full
191 | SUPPORTED_100baseT_Half
192 | SUPPORTED_100baseT_Full
);
194 else if (hw
->chip_id
== CHIP_ID_YUKON
)
195 supported
&= ~SUPPORTED_1000baseT_Half
;
197 supported
= SUPPORTED_1000baseT_Full
| SUPPORTED_FIBRE
203 static int skge_get_settings(struct net_device
*dev
,
204 struct ethtool_cmd
*ecmd
)
206 struct skge_port
*skge
= netdev_priv(dev
);
207 struct skge_hw
*hw
= skge
->hw
;
209 ecmd
->transceiver
= XCVR_INTERNAL
;
210 ecmd
->supported
= skge_supported_modes(hw
);
213 ecmd
->port
= PORT_TP
;
214 ecmd
->phy_address
= hw
->phy_addr
;
216 ecmd
->port
= PORT_FIBRE
;
218 ecmd
->advertising
= skge
->advertising
;
219 ecmd
->autoneg
= skge
->autoneg
;
220 ecmd
->speed
= skge
->speed
;
221 ecmd
->duplex
= skge
->duplex
;
225 static int skge_set_settings(struct net_device
*dev
, struct ethtool_cmd
*ecmd
)
227 struct skge_port
*skge
= netdev_priv(dev
);
228 const struct skge_hw
*hw
= skge
->hw
;
229 u32 supported
= skge_supported_modes(hw
);
231 if (ecmd
->autoneg
== AUTONEG_ENABLE
) {
232 ecmd
->advertising
= supported
;
238 switch (ecmd
->speed
) {
240 if (ecmd
->duplex
== DUPLEX_FULL
)
241 setting
= SUPPORTED_1000baseT_Full
;
242 else if (ecmd
->duplex
== DUPLEX_HALF
)
243 setting
= SUPPORTED_1000baseT_Half
;
248 if (ecmd
->duplex
== DUPLEX_FULL
)
249 setting
= SUPPORTED_100baseT_Full
;
250 else if (ecmd
->duplex
== DUPLEX_HALF
)
251 setting
= SUPPORTED_100baseT_Half
;
257 if (ecmd
->duplex
== DUPLEX_FULL
)
258 setting
= SUPPORTED_10baseT_Full
;
259 else if (ecmd
->duplex
== DUPLEX_HALF
)
260 setting
= SUPPORTED_10baseT_Half
;
268 if ((setting
& supported
) == 0)
271 skge
->speed
= ecmd
->speed
;
272 skge
->duplex
= ecmd
->duplex
;
275 skge
->autoneg
= ecmd
->autoneg
;
276 skge
->advertising
= ecmd
->advertising
;
278 if (netif_running(dev
))
279 skge_phy_reset(skge
);
284 static void skge_get_drvinfo(struct net_device
*dev
,
285 struct ethtool_drvinfo
*info
)
287 struct skge_port
*skge
= netdev_priv(dev
);
289 strcpy(info
->driver
, DRV_NAME
);
290 strcpy(info
->version
, DRV_VERSION
);
291 strcpy(info
->fw_version
, "N/A");
292 strcpy(info
->bus_info
, pci_name(skge
->hw
->pdev
));
295 static const struct skge_stat
{
296 char name
[ETH_GSTRING_LEN
];
300 { "tx_bytes", XM_TXO_OK_HI
, GM_TXO_OK_HI
},
301 { "rx_bytes", XM_RXO_OK_HI
, GM_RXO_OK_HI
},
303 { "tx_broadcast", XM_TXF_BC_OK
, GM_TXF_BC_OK
},
304 { "rx_broadcast", XM_RXF_BC_OK
, GM_RXF_BC_OK
},
305 { "tx_multicast", XM_TXF_MC_OK
, GM_TXF_MC_OK
},
306 { "rx_multicast", XM_RXF_MC_OK
, GM_RXF_MC_OK
},
307 { "tx_unicast", XM_TXF_UC_OK
, GM_TXF_UC_OK
},
308 { "rx_unicast", XM_RXF_UC_OK
, GM_RXF_UC_OK
},
309 { "tx_mac_pause", XM_TXF_MPAUSE
, GM_TXF_MPAUSE
},
310 { "rx_mac_pause", XM_RXF_MPAUSE
, GM_RXF_MPAUSE
},
312 { "collisions", XM_TXF_SNG_COL
, GM_TXF_SNG_COL
},
313 { "multi_collisions", XM_TXF_MUL_COL
, GM_TXF_MUL_COL
},
314 { "aborted", XM_TXF_ABO_COL
, GM_TXF_ABO_COL
},
315 { "late_collision", XM_TXF_LAT_COL
, GM_TXF_LAT_COL
},
316 { "fifo_underrun", XM_TXE_FIFO_UR
, GM_TXE_FIFO_UR
},
317 { "fifo_overflow", XM_RXE_FIFO_OV
, GM_RXE_FIFO_OV
},
319 { "rx_toolong", XM_RXF_LNG_ERR
, GM_RXF_LNG_ERR
},
320 { "rx_jabber", XM_RXF_JAB_PKT
, GM_RXF_JAB_PKT
},
321 { "rx_runt", XM_RXE_RUNT
, GM_RXE_FRAG
},
322 { "rx_too_long", XM_RXF_LNG_ERR
, GM_RXF_LNG_ERR
},
323 { "rx_fcs_error", XM_RXF_FCS_ERR
, GM_RXF_FCS_ERR
},
326 static int skge_get_stats_count(struct net_device
*dev
)
328 return ARRAY_SIZE(skge_stats
);
331 static void skge_get_ethtool_stats(struct net_device
*dev
,
332 struct ethtool_stats
*stats
, u64
*data
)
334 struct skge_port
*skge
= netdev_priv(dev
);
336 if (skge
->hw
->chip_id
== CHIP_ID_GENESIS
)
337 genesis_get_stats(skge
, data
);
339 yukon_get_stats(skge
, data
);
342 /* Use hardware MIB variables for critical path statistics and
343 * transmit feedback not reported at interrupt.
344 * Other errors are accounted for in interrupt handler.
346 static struct net_device_stats
*skge_get_stats(struct net_device
*dev
)
348 struct skge_port
*skge
= netdev_priv(dev
);
349 u64 data
[ARRAY_SIZE(skge_stats
)];
351 if (skge
->hw
->chip_id
== CHIP_ID_GENESIS
)
352 genesis_get_stats(skge
, data
);
354 yukon_get_stats(skge
, data
);
356 skge
->net_stats
.tx_bytes
= data
[0];
357 skge
->net_stats
.rx_bytes
= data
[1];
358 skge
->net_stats
.tx_packets
= data
[2] + data
[4] + data
[6];
359 skge
->net_stats
.rx_packets
= data
[3] + data
[5] + data
[7];
360 skge
->net_stats
.multicast
= data
[5] + data
[7];
361 skge
->net_stats
.collisions
= data
[10];
362 skge
->net_stats
.tx_aborted_errors
= data
[12];
364 return &skge
->net_stats
;
367 static void skge_get_strings(struct net_device
*dev
, u32 stringset
, u8
*data
)
373 for (i
= 0; i
< ARRAY_SIZE(skge_stats
); i
++)
374 memcpy(data
+ i
* ETH_GSTRING_LEN
,
375 skge_stats
[i
].name
, ETH_GSTRING_LEN
);
380 static void skge_get_ring_param(struct net_device
*dev
,
381 struct ethtool_ringparam
*p
)
383 struct skge_port
*skge
= netdev_priv(dev
);
385 p
->rx_max_pending
= MAX_RX_RING_SIZE
;
386 p
->tx_max_pending
= MAX_TX_RING_SIZE
;
387 p
->rx_mini_max_pending
= 0;
388 p
->rx_jumbo_max_pending
= 0;
390 p
->rx_pending
= skge
->rx_ring
.count
;
391 p
->tx_pending
= skge
->tx_ring
.count
;
392 p
->rx_mini_pending
= 0;
393 p
->rx_jumbo_pending
= 0;
396 static int skge_set_ring_param(struct net_device
*dev
,
397 struct ethtool_ringparam
*p
)
399 struct skge_port
*skge
= netdev_priv(dev
);
402 if (p
->rx_pending
== 0 || p
->rx_pending
> MAX_RX_RING_SIZE
||
403 p
->tx_pending
== 0 || p
->tx_pending
> MAX_TX_RING_SIZE
)
406 skge
->rx_ring
.count
= p
->rx_pending
;
407 skge
->tx_ring
.count
= p
->tx_pending
;
409 if (netif_running(dev
)) {
419 static u32
skge_get_msglevel(struct net_device
*netdev
)
421 struct skge_port
*skge
= netdev_priv(netdev
);
422 return skge
->msg_enable
;
425 static void skge_set_msglevel(struct net_device
*netdev
, u32 value
)
427 struct skge_port
*skge
= netdev_priv(netdev
);
428 skge
->msg_enable
= value
;
431 static int skge_nway_reset(struct net_device
*dev
)
433 struct skge_port
*skge
= netdev_priv(dev
);
435 if (skge
->autoneg
!= AUTONEG_ENABLE
|| !netif_running(dev
))
438 skge_phy_reset(skge
);
442 static int skge_set_sg(struct net_device
*dev
, u32 data
)
444 struct skge_port
*skge
= netdev_priv(dev
);
445 struct skge_hw
*hw
= skge
->hw
;
447 if (hw
->chip_id
== CHIP_ID_GENESIS
&& data
)
449 return ethtool_op_set_sg(dev
, data
);
452 static int skge_set_tx_csum(struct net_device
*dev
, u32 data
)
454 struct skge_port
*skge
= netdev_priv(dev
);
455 struct skge_hw
*hw
= skge
->hw
;
457 if (hw
->chip_id
== CHIP_ID_GENESIS
&& data
)
460 return ethtool_op_set_tx_csum(dev
, data
);
463 static u32
skge_get_rx_csum(struct net_device
*dev
)
465 struct skge_port
*skge
= netdev_priv(dev
);
467 return skge
->rx_csum
;
470 /* Only Yukon supports checksum offload. */
471 static int skge_set_rx_csum(struct net_device
*dev
, u32 data
)
473 struct skge_port
*skge
= netdev_priv(dev
);
475 if (skge
->hw
->chip_id
== CHIP_ID_GENESIS
&& data
)
478 skge
->rx_csum
= data
;
482 static void skge_get_pauseparam(struct net_device
*dev
,
483 struct ethtool_pauseparam
*ecmd
)
485 struct skge_port
*skge
= netdev_priv(dev
);
487 ecmd
->tx_pause
= (skge
->flow_control
== FLOW_MODE_LOC_SEND
)
488 || (skge
->flow_control
== FLOW_MODE_SYMMETRIC
);
489 ecmd
->rx_pause
= (skge
->flow_control
== FLOW_MODE_REM_SEND
)
490 || (skge
->flow_control
== FLOW_MODE_SYMMETRIC
);
492 ecmd
->autoneg
= skge
->autoneg
;
495 static int skge_set_pauseparam(struct net_device
*dev
,
496 struct ethtool_pauseparam
*ecmd
)
498 struct skge_port
*skge
= netdev_priv(dev
);
500 skge
->autoneg
= ecmd
->autoneg
;
501 if (ecmd
->rx_pause
&& ecmd
->tx_pause
)
502 skge
->flow_control
= FLOW_MODE_SYMMETRIC
;
503 else if (ecmd
->rx_pause
&& !ecmd
->tx_pause
)
504 skge
->flow_control
= FLOW_MODE_REM_SEND
;
505 else if (!ecmd
->rx_pause
&& ecmd
->tx_pause
)
506 skge
->flow_control
= FLOW_MODE_LOC_SEND
;
508 skge
->flow_control
= FLOW_MODE_NONE
;
510 if (netif_running(dev
))
511 skge_phy_reset(skge
);
515 /* Chip internal frequency for clock calculations */
516 static inline u32
hwkhz(const struct skge_hw
*hw
)
518 if (hw
->chip_id
== CHIP_ID_GENESIS
)
519 return 53215; /* or: 53.125 MHz */
521 return 78215; /* or: 78.125 MHz */
524 /* Chip HZ to microseconds */
525 static inline u32
skge_clk2usec(const struct skge_hw
*hw
, u32 ticks
)
527 return (ticks
* 1000) / hwkhz(hw
);
530 /* Microseconds to chip HZ */
531 static inline u32
skge_usecs2clk(const struct skge_hw
*hw
, u32 usec
)
533 return hwkhz(hw
) * usec
/ 1000;
536 static int skge_get_coalesce(struct net_device
*dev
,
537 struct ethtool_coalesce
*ecmd
)
539 struct skge_port
*skge
= netdev_priv(dev
);
540 struct skge_hw
*hw
= skge
->hw
;
541 int port
= skge
->port
;
543 ecmd
->rx_coalesce_usecs
= 0;
544 ecmd
->tx_coalesce_usecs
= 0;
546 if (skge_read32(hw
, B2_IRQM_CTRL
) & TIM_START
) {
547 u32 delay
= skge_clk2usec(hw
, skge_read32(hw
, B2_IRQM_INI
));
548 u32 msk
= skge_read32(hw
, B2_IRQM_MSK
);
550 if (msk
& rxirqmask
[port
])
551 ecmd
->rx_coalesce_usecs
= delay
;
552 if (msk
& txirqmask
[port
])
553 ecmd
->tx_coalesce_usecs
= delay
;
559 /* Note: interrupt timer is per board, but can turn on/off per port */
560 static int skge_set_coalesce(struct net_device
*dev
,
561 struct ethtool_coalesce
*ecmd
)
563 struct skge_port
*skge
= netdev_priv(dev
);
564 struct skge_hw
*hw
= skge
->hw
;
565 int port
= skge
->port
;
566 u32 msk
= skge_read32(hw
, B2_IRQM_MSK
);
569 if (ecmd
->rx_coalesce_usecs
== 0)
570 msk
&= ~rxirqmask
[port
];
571 else if (ecmd
->rx_coalesce_usecs
< 25 ||
572 ecmd
->rx_coalesce_usecs
> 33333)
575 msk
|= rxirqmask
[port
];
576 delay
= ecmd
->rx_coalesce_usecs
;
579 if (ecmd
->tx_coalesce_usecs
== 0)
580 msk
&= ~txirqmask
[port
];
581 else if (ecmd
->tx_coalesce_usecs
< 25 ||
582 ecmd
->tx_coalesce_usecs
> 33333)
585 msk
|= txirqmask
[port
];
586 delay
= min(delay
, ecmd
->rx_coalesce_usecs
);
589 skge_write32(hw
, B2_IRQM_MSK
, msk
);
591 skge_write32(hw
, B2_IRQM_CTRL
, TIM_STOP
);
593 skge_write32(hw
, B2_IRQM_INI
, skge_usecs2clk(hw
, delay
));
594 skge_write32(hw
, B2_IRQM_CTRL
, TIM_START
);
599 enum led_mode
{ LED_MODE_OFF
, LED_MODE_ON
, LED_MODE_TST
};
600 static void skge_led(struct skge_port
*skge
, enum led_mode mode
)
602 struct skge_hw
*hw
= skge
->hw
;
603 int port
= skge
->port
;
605 spin_lock_bh(&hw
->phy_lock
);
606 if (hw
->chip_id
== CHIP_ID_GENESIS
) {
609 xm_phy_write(hw
, port
, PHY_BCOM_P_EXT_CTRL
, PHY_B_PEC_LED_OFF
);
610 skge_write8(hw
, SK_REG(port
, LNK_LED_REG
), LINKLED_OFF
);
611 skge_write32(hw
, SK_REG(port
, RX_LED_VAL
), 0);
612 skge_write8(hw
, SK_REG(port
, RX_LED_CTRL
), LED_T_OFF
);
616 skge_write8(hw
, SK_REG(port
, LNK_LED_REG
), LINKLED_ON
);
617 skge_write8(hw
, SK_REG(port
, LNK_LED_REG
), LINKLED_LINKSYNC_ON
);
619 skge_write8(hw
, SK_REG(port
, RX_LED_CTRL
), LED_START
);
620 skge_write8(hw
, SK_REG(port
, TX_LED_CTRL
), LED_START
);
625 skge_write8(hw
, SK_REG(port
, RX_LED_TST
), LED_T_ON
);
626 skge_write32(hw
, SK_REG(port
, RX_LED_VAL
), 100);
627 skge_write8(hw
, SK_REG(port
, RX_LED_CTRL
), LED_START
);
629 xm_phy_write(hw
, port
, PHY_BCOM_P_EXT_CTRL
, PHY_B_PEC_LED_ON
);
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_OFF
) |
638 PHY_M_LED_MO_10(MO_LED_OFF
) |
639 PHY_M_LED_MO_100(MO_LED_OFF
) |
640 PHY_M_LED_MO_1000(MO_LED_OFF
) |
641 PHY_M_LED_MO_RX(MO_LED_OFF
));
644 gm_phy_write(hw
, port
, PHY_MARV_LED_CTRL
,
645 PHY_M_LED_PULS_DUR(PULS_170MS
) |
646 PHY_M_LED_BLINK_RT(BLINK_84MS
) |
650 gm_phy_write(hw
, port
, PHY_MARV_LED_OVER
,
651 PHY_M_LED_MO_RX(MO_LED_OFF
) |
652 (skge
->speed
== SPEED_100
?
653 PHY_M_LED_MO_100(MO_LED_ON
) : 0));
656 gm_phy_write(hw
, port
, PHY_MARV_LED_CTRL
, 0);
657 gm_phy_write(hw
, port
, PHY_MARV_LED_OVER
,
658 PHY_M_LED_MO_DUP(MO_LED_ON
) |
659 PHY_M_LED_MO_10(MO_LED_ON
) |
660 PHY_M_LED_MO_100(MO_LED_ON
) |
661 PHY_M_LED_MO_1000(MO_LED_ON
) |
662 PHY_M_LED_MO_RX(MO_LED_ON
));
665 spin_unlock_bh(&hw
->phy_lock
);
668 /* blink LED's for finding board */
669 static int skge_phys_id(struct net_device
*dev
, u32 data
)
671 struct skge_port
*skge
= netdev_priv(dev
);
673 enum led_mode mode
= LED_MODE_TST
;
675 if (!data
|| data
> (u32
)(MAX_SCHEDULE_TIMEOUT
/ HZ
))
676 ms
= jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT
/ HZ
) * 1000;
681 skge_led(skge
, mode
);
682 mode
^= LED_MODE_TST
;
684 if (msleep_interruptible(BLINK_MS
))
689 /* back to regular LED state */
690 skge_led(skge
, netif_running(dev
) ? LED_MODE_ON
: LED_MODE_OFF
);
695 static struct ethtool_ops skge_ethtool_ops
= {
696 .get_settings
= skge_get_settings
,
697 .set_settings
= skge_set_settings
,
698 .get_drvinfo
= skge_get_drvinfo
,
699 .get_regs_len
= skge_get_regs_len
,
700 .get_regs
= skge_get_regs
,
701 .get_wol
= skge_get_wol
,
702 .set_wol
= skge_set_wol
,
703 .get_msglevel
= skge_get_msglevel
,
704 .set_msglevel
= skge_set_msglevel
,
705 .nway_reset
= skge_nway_reset
,
706 .get_link
= ethtool_op_get_link
,
707 .get_ringparam
= skge_get_ring_param
,
708 .set_ringparam
= skge_set_ring_param
,
709 .get_pauseparam
= skge_get_pauseparam
,
710 .set_pauseparam
= skge_set_pauseparam
,
711 .get_coalesce
= skge_get_coalesce
,
712 .set_coalesce
= skge_set_coalesce
,
713 .get_sg
= ethtool_op_get_sg
,
714 .set_sg
= skge_set_sg
,
715 .get_tx_csum
= ethtool_op_get_tx_csum
,
716 .set_tx_csum
= skge_set_tx_csum
,
717 .get_rx_csum
= skge_get_rx_csum
,
718 .set_rx_csum
= skge_set_rx_csum
,
719 .get_strings
= skge_get_strings
,
720 .phys_id
= skge_phys_id
,
721 .get_stats_count
= skge_get_stats_count
,
722 .get_ethtool_stats
= skge_get_ethtool_stats
,
723 .get_perm_addr
= ethtool_op_get_perm_addr
,
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
, u32 base
)
732 struct skge_tx_desc
*d
;
733 struct skge_element
*e
;
736 ring
->start
= kcalloc(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 /* Allocate and setup a new buffer for receiving */
756 static void skge_rx_setup(struct skge_port
*skge
, struct skge_element
*e
,
757 struct sk_buff
*skb
, unsigned int bufsize
)
759 struct skge_rx_desc
*rd
= e
->desc
;
762 map
= pci_map_single(skge
->hw
->pdev
, skb
->data
, bufsize
,
766 rd
->dma_hi
= map
>> 32;
768 rd
->csum1_start
= ETH_HLEN
;
769 rd
->csum2_start
= ETH_HLEN
;
775 rd
->control
= BMU_OWN
| BMU_STF
| BMU_IRQ_EOF
| BMU_TCP_CHECK
| bufsize
;
776 pci_unmap_addr_set(e
, mapaddr
, map
);
777 pci_unmap_len_set(e
, maplen
, bufsize
);
780 /* Resume receiving using existing skb,
781 * Note: DMA address is not changed by chip.
782 * MTU not changed while receiver active.
784 static void skge_rx_reuse(struct skge_element
*e
, unsigned int size
)
786 struct skge_rx_desc
*rd
= e
->desc
;
789 rd
->csum2_start
= ETH_HLEN
;
793 rd
->control
= BMU_OWN
| BMU_STF
| BMU_IRQ_EOF
| BMU_TCP_CHECK
| size
;
797 /* Free all buffers in receive ring, assumes receiver stopped */
798 static void skge_rx_clean(struct skge_port
*skge
)
800 struct skge_hw
*hw
= skge
->hw
;
801 struct skge_ring
*ring
= &skge
->rx_ring
;
802 struct skge_element
*e
;
806 struct skge_rx_desc
*rd
= e
->desc
;
809 pci_unmap_single(hw
->pdev
,
810 pci_unmap_addr(e
, mapaddr
),
811 pci_unmap_len(e
, maplen
),
813 dev_kfree_skb(e
->skb
);
816 } while ((e
= e
->next
) != ring
->start
);
820 /* Allocate buffers for receive ring
821 * For receive: to_clean is next received frame.
823 static int skge_rx_fill(struct skge_port
*skge
)
825 struct skge_ring
*ring
= &skge
->rx_ring
;
826 struct skge_element
*e
;
832 skb
= dev_alloc_skb(skge
->rx_buf_size
+ NET_IP_ALIGN
);
836 skb_reserve(skb
, NET_IP_ALIGN
);
837 skge_rx_setup(skge
, e
, skb
, skge
->rx_buf_size
);
838 } while ( (e
= e
->next
) != ring
->start
);
840 ring
->to_clean
= ring
->start
;
844 static void skge_link_up(struct skge_port
*skge
)
846 skge_write8(skge
->hw
, SK_REG(skge
->port
, LNK_LED_REG
),
847 LED_BLK_OFF
|LED_SYNC_OFF
|LED_ON
);
849 netif_carrier_on(skge
->netdev
);
850 if (skge
->tx_avail
> MAX_SKB_FRAGS
+ 1)
851 netif_wake_queue(skge
->netdev
);
853 if (netif_msg_link(skge
))
855 "%s: Link is up at %d Mbps, %s duplex, flow control %s\n",
856 skge
->netdev
->name
, skge
->speed
,
857 skge
->duplex
== DUPLEX_FULL
? "full" : "half",
858 (skge
->flow_control
== FLOW_MODE_NONE
) ? "none" :
859 (skge
->flow_control
== FLOW_MODE_LOC_SEND
) ? "tx only" :
860 (skge
->flow_control
== FLOW_MODE_REM_SEND
) ? "rx only" :
861 (skge
->flow_control
== FLOW_MODE_SYMMETRIC
) ? "tx and rx" :
865 static void skge_link_down(struct skge_port
*skge
)
867 skge_write8(skge
->hw
, SK_REG(skge
->port
, LNK_LED_REG
), LED_OFF
);
868 netif_carrier_off(skge
->netdev
);
869 netif_stop_queue(skge
->netdev
);
871 if (netif_msg_link(skge
))
872 printk(KERN_INFO PFX
"%s: Link is down.\n", skge
->netdev
->name
);
875 static int __xm_phy_read(struct skge_hw
*hw
, int port
, u16 reg
, u16
*val
)
879 xm_write16(hw
, port
, XM_PHY_ADDR
, reg
| hw
->phy_addr
);
880 *val
= xm_read16(hw
, port
, XM_PHY_DATA
);
882 for (i
= 0; i
< PHY_RETRIES
; i
++) {
883 if (xm_read16(hw
, port
, XM_MMU_CMD
) & XM_MMU_PHY_RDY
)
890 *val
= xm_read16(hw
, port
, XM_PHY_DATA
);
895 static u16
xm_phy_read(struct skge_hw
*hw
, int port
, u16 reg
)
898 if (__xm_phy_read(hw
, port
, reg
, &v
))
899 printk(KERN_WARNING PFX
"%s: phy read timed out\n",
900 hw
->dev
[port
]->name
);
904 static int xm_phy_write(struct skge_hw
*hw
, int port
, u16 reg
, u16 val
)
908 xm_write16(hw
, port
, XM_PHY_ADDR
, reg
| hw
->phy_addr
);
909 for (i
= 0; i
< PHY_RETRIES
; i
++) {
910 if (!(xm_read16(hw
, port
, XM_MMU_CMD
) & XM_MMU_PHY_BUSY
))
917 xm_write16(hw
, port
, XM_PHY_DATA
, val
);
918 for (i
= 0; i
< PHY_RETRIES
; i
++) {
919 if (!(xm_read16(hw
, port
, XM_MMU_CMD
) & XM_MMU_PHY_BUSY
))
926 static void genesis_init(struct skge_hw
*hw
)
928 /* set blink source counter */
929 skge_write32(hw
, B2_BSC_INI
, (SK_BLK_DUR
* SK_FACT_53
) / 100);
930 skge_write8(hw
, B2_BSC_CTRL
, BSC_START
);
932 /* configure mac arbiter */
933 skge_write16(hw
, B3_MA_TO_CTRL
, MA_RST_CLR
);
935 /* configure mac arbiter timeout values */
936 skge_write8(hw
, B3_MA_TOINI_RX1
, SK_MAC_TO_53
);
937 skge_write8(hw
, B3_MA_TOINI_RX2
, SK_MAC_TO_53
);
938 skge_write8(hw
, B3_MA_TOINI_TX1
, SK_MAC_TO_53
);
939 skge_write8(hw
, B3_MA_TOINI_TX2
, SK_MAC_TO_53
);
941 skge_write8(hw
, B3_MA_RCINI_RX1
, 0);
942 skge_write8(hw
, B3_MA_RCINI_RX2
, 0);
943 skge_write8(hw
, B3_MA_RCINI_TX1
, 0);
944 skge_write8(hw
, B3_MA_RCINI_TX2
, 0);
946 /* configure packet arbiter timeout */
947 skge_write16(hw
, B3_PA_CTRL
, PA_RST_CLR
);
948 skge_write16(hw
, B3_PA_TOINI_RX1
, SK_PKT_TO_MAX
);
949 skge_write16(hw
, B3_PA_TOINI_TX1
, SK_PKT_TO_MAX
);
950 skge_write16(hw
, B3_PA_TOINI_RX2
, SK_PKT_TO_MAX
);
951 skge_write16(hw
, B3_PA_TOINI_TX2
, SK_PKT_TO_MAX
);
954 static void genesis_reset(struct skge_hw
*hw
, int port
)
956 const u8 zero
[8] = { 0 };
958 skge_write8(hw
, SK_REG(port
, GMAC_IRQ_MSK
), 0);
960 /* reset the statistics module */
961 xm_write32(hw
, port
, XM_GP_PORT
, XM_GP_RES_STAT
);
962 xm_write16(hw
, port
, XM_IMSK
, 0xffff); /* disable XMAC IRQs */
963 xm_write32(hw
, port
, XM_MODE
, 0); /* clear Mode Reg */
964 xm_write16(hw
, port
, XM_TX_CMD
, 0); /* reset TX CMD Reg */
965 xm_write16(hw
, port
, XM_RX_CMD
, 0); /* reset RX CMD Reg */
967 /* disable Broadcom PHY IRQ */
968 xm_write16(hw
, port
, PHY_BCOM_INT_MASK
, 0xffff);
970 xm_outhash(hw
, port
, XM_HSM
, zero
);
974 /* Convert mode to MII values */
975 static const u16 phy_pause_map
[] = {
976 [FLOW_MODE_NONE
] = 0,
977 [FLOW_MODE_LOC_SEND
] = PHY_AN_PAUSE_ASYM
,
978 [FLOW_MODE_SYMMETRIC
] = PHY_AN_PAUSE_CAP
,
979 [FLOW_MODE_REM_SEND
] = PHY_AN_PAUSE_CAP
| PHY_AN_PAUSE_ASYM
,
983 /* Check status of Broadcom phy link */
984 static void bcom_check_link(struct skge_hw
*hw
, int port
)
986 struct net_device
*dev
= hw
->dev
[port
];
987 struct skge_port
*skge
= netdev_priv(dev
);
990 /* read twice because of latch */
991 (void) xm_phy_read(hw
, port
, PHY_BCOM_STAT
);
992 status
= xm_phy_read(hw
, port
, PHY_BCOM_STAT
);
994 if ((status
& PHY_ST_LSYNC
) == 0) {
995 u16 cmd
= xm_read16(hw
, port
, XM_MMU_CMD
);
996 cmd
&= ~(XM_MMU_ENA_RX
| XM_MMU_ENA_TX
);
997 xm_write16(hw
, port
, XM_MMU_CMD
, cmd
);
998 /* dummy read to ensure writing */
999 (void) xm_read16(hw
, port
, XM_MMU_CMD
);
1001 if (netif_carrier_ok(dev
))
1002 skge_link_down(skge
);
1004 if (skge
->autoneg
== AUTONEG_ENABLE
&&
1005 (status
& PHY_ST_AN_OVER
)) {
1006 u16 lpa
= xm_phy_read(hw
, port
, PHY_BCOM_AUNE_LP
);
1007 u16 aux
= xm_phy_read(hw
, port
, PHY_BCOM_AUX_STAT
);
1009 if (lpa
& PHY_B_AN_RF
) {
1010 printk(KERN_NOTICE PFX
"%s: remote fault\n",
1015 /* Check Duplex mismatch */
1016 switch (aux
& PHY_B_AS_AN_RES_MSK
) {
1017 case PHY_B_RES_1000FD
:
1018 skge
->duplex
= DUPLEX_FULL
;
1020 case PHY_B_RES_1000HD
:
1021 skge
->duplex
= DUPLEX_HALF
;
1024 printk(KERN_NOTICE PFX
"%s: duplex mismatch\n",
1030 /* We are using IEEE 802.3z/D5.0 Table 37-4 */
1031 switch (aux
& PHY_B_AS_PAUSE_MSK
) {
1032 case PHY_B_AS_PAUSE_MSK
:
1033 skge
->flow_control
= FLOW_MODE_SYMMETRIC
;
1036 skge
->flow_control
= FLOW_MODE_REM_SEND
;
1039 skge
->flow_control
= FLOW_MODE_LOC_SEND
;
1042 skge
->flow_control
= FLOW_MODE_NONE
;
1045 skge
->speed
= SPEED_1000
;
1048 if (!netif_carrier_ok(dev
))
1049 genesis_link_up(skge
);
1053 /* Broadcom 5400 only supports giagabit! SysKonnect did not put an additional
1054 * Phy on for 100 or 10Mbit operation
1056 static void bcom_phy_init(struct skge_port
*skge
, int jumbo
)
1058 struct skge_hw
*hw
= skge
->hw
;
1059 int port
= skge
->port
;
1061 u16 id1
, r
, ext
, ctl
;
1063 /* magic workaround patterns for Broadcom */
1064 static const struct {
1068 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 },
1069 { 0x17, 0x0013 }, { 0x15, 0x0404 }, { 0x17, 0x8006 },
1070 { 0x15, 0x0132 }, { 0x17, 0x8006 }, { 0x15, 0x0232 },
1071 { 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 },
1073 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1204 },
1074 { 0x17, 0x0013 }, { 0x15, 0x0A04 }, { 0x18, 0x0420 },
1077 /* read Id from external PHY (all have the same address) */
1078 id1
= xm_phy_read(hw
, port
, PHY_XMAC_ID1
);
1080 /* Optimize MDIO transfer by suppressing preamble. */
1081 r
= xm_read16(hw
, port
, XM_MMU_CMD
);
1083 xm_write16(hw
, port
, XM_MMU_CMD
,r
);
1086 case PHY_BCOM_ID1_C0
:
1088 * Workaround BCOM Errata for the C0 type.
1089 * Write magic patterns to reserved registers.
1091 for (i
= 0; i
< ARRAY_SIZE(C0hack
); i
++)
1092 xm_phy_write(hw
, port
,
1093 C0hack
[i
].reg
, C0hack
[i
].val
);
1096 case PHY_BCOM_ID1_A1
:
1098 * Workaround BCOM Errata for the A1 type.
1099 * Write magic patterns to reserved registers.
1101 for (i
= 0; i
< ARRAY_SIZE(A1hack
); i
++)
1102 xm_phy_write(hw
, port
,
1103 A1hack
[i
].reg
, A1hack
[i
].val
);
1108 * Workaround BCOM Errata (#10523) for all BCom PHYs.
1109 * Disable Power Management after reset.
1111 r
= xm_phy_read(hw
, port
, PHY_BCOM_AUX_CTRL
);
1112 r
|= PHY_B_AC_DIS_PM
;
1113 xm_phy_write(hw
, port
, PHY_BCOM_AUX_CTRL
, r
);
1116 xm_read16(hw
, port
, XM_ISRC
);
1118 ext
= PHY_B_PEC_EN_LTR
; /* enable tx led */
1119 ctl
= PHY_CT_SP1000
; /* always 1000mbit */
1121 if (skge
->autoneg
== AUTONEG_ENABLE
) {
1123 * Workaround BCOM Errata #1 for the C5 type.
1124 * 1000Base-T Link Acquisition Failure in Slave Mode
1125 * Set Repeater/DTE bit 10 of the 1000Base-T Control Register
1127 u16 adv
= PHY_B_1000C_RD
;
1128 if (skge
->advertising
& ADVERTISED_1000baseT_Half
)
1129 adv
|= PHY_B_1000C_AHD
;
1130 if (skge
->advertising
& ADVERTISED_1000baseT_Full
)
1131 adv
|= PHY_B_1000C_AFD
;
1132 xm_phy_write(hw
, port
, PHY_BCOM_1000T_CTRL
, adv
);
1134 ctl
|= PHY_CT_ANE
| PHY_CT_RE_CFG
;
1136 if (skge
->duplex
== DUPLEX_FULL
)
1137 ctl
|= PHY_CT_DUP_MD
;
1138 /* Force to slave */
1139 xm_phy_write(hw
, port
, PHY_BCOM_1000T_CTRL
, PHY_B_1000C_MSE
);
1142 /* Set autonegotiation pause parameters */
1143 xm_phy_write(hw
, port
, PHY_BCOM_AUNE_ADV
,
1144 phy_pause_map
[skge
->flow_control
] | PHY_AN_CSMA
);
1146 /* Handle Jumbo frames */
1148 xm_phy_write(hw
, port
, PHY_BCOM_AUX_CTRL
,
1149 PHY_B_AC_TX_TST
| PHY_B_AC_LONG_PACK
);
1151 ext
|= PHY_B_PEC_HIGH_LA
;
1155 xm_phy_write(hw
, port
, PHY_BCOM_P_EXT_CTRL
, ext
);
1156 xm_phy_write(hw
, port
, PHY_BCOM_CTRL
, ctl
);
1158 /* Use link status change interrupt */
1159 xm_phy_write(hw
, port
, PHY_BCOM_INT_MASK
, PHY_B_DEF_MSK
);
1161 bcom_check_link(hw
, port
);
1164 static void genesis_mac_init(struct skge_hw
*hw
, int port
)
1166 struct net_device
*dev
= hw
->dev
[port
];
1167 struct skge_port
*skge
= netdev_priv(dev
);
1168 int jumbo
= hw
->dev
[port
]->mtu
> ETH_DATA_LEN
;
1171 const u8 zero
[6] = { 0 };
1173 for (i
= 0; i
< 10; i
++) {
1174 skge_write16(hw
, SK_REG(port
, TX_MFF_CTRL1
),
1176 if (skge_read16(hw
, SK_REG(port
, TX_MFF_CTRL1
)) & MFF_SET_MAC_RST
)
1181 printk(KERN_WARNING PFX
"%s: genesis reset failed\n", dev
->name
);
1184 /* Unreset the XMAC. */
1185 skge_write16(hw
, SK_REG(port
, TX_MFF_CTRL1
), MFF_CLR_MAC_RST
);
1188 * Perform additional initialization for external PHYs,
1189 * namely for the 1000baseTX cards that use the XMAC's
1192 /* Take external Phy out of reset */
1193 r
= skge_read32(hw
, B2_GP_IO
);
1195 r
|= GP_DIR_0
|GP_IO_0
;
1197 r
|= GP_DIR_2
|GP_IO_2
;
1199 skge_write32(hw
, B2_GP_IO
, r
);
1202 /* Enable GMII interface */
1203 xm_write16(hw
, port
, XM_HW_CFG
, XM_HW_GMII_MD
);
1205 bcom_phy_init(skge
, jumbo
);
1207 /* Set Station Address */
1208 xm_outaddr(hw
, port
, XM_SA
, dev
->dev_addr
);
1210 /* We don't use match addresses so clear */
1211 for (i
= 1; i
< 16; i
++)
1212 xm_outaddr(hw
, port
, XM_EXM(i
), zero
);
1214 /* Clear MIB counters */
1215 xm_write16(hw
, port
, XM_STAT_CMD
,
1216 XM_SC_CLR_RXC
| XM_SC_CLR_TXC
);
1217 /* Clear two times according to Errata #3 */
1218 xm_write16(hw
, port
, XM_STAT_CMD
,
1219 XM_SC_CLR_RXC
| XM_SC_CLR_TXC
);
1221 /* configure Rx High Water Mark (XM_RX_HI_WM) */
1222 xm_write16(hw
, port
, XM_RX_HI_WM
, 1450);
1224 /* We don't need the FCS appended to the packet. */
1225 r
= XM_RX_LENERR_OK
| XM_RX_STRIP_FCS
;
1227 r
|= XM_RX_BIG_PK_OK
;
1229 if (skge
->duplex
== DUPLEX_HALF
) {
1231 * If in manual half duplex mode the other side might be in
1232 * full duplex mode, so ignore if a carrier extension is not seen
1233 * on frames received
1235 r
|= XM_RX_DIS_CEXT
;
1237 xm_write16(hw
, port
, XM_RX_CMD
, r
);
1240 /* We want short frames padded to 60 bytes. */
1241 xm_write16(hw
, port
, XM_TX_CMD
, XM_TX_AUTO_PAD
);
1244 * Bump up the transmit threshold. This helps hold off transmit
1245 * underruns when we're blasting traffic from both ports at once.
1247 xm_write16(hw
, port
, XM_TX_THR
, 512);
1250 * Enable the reception of all error frames. This is is
1251 * a necessary evil due to the design of the XMAC. The
1252 * XMAC's receive FIFO is only 8K in size, however jumbo
1253 * frames can be up to 9000 bytes in length. When bad
1254 * frame filtering is enabled, the XMAC's RX FIFO operates
1255 * in 'store and forward' mode. For this to work, the
1256 * entire frame has to fit into the FIFO, but that means
1257 * that jumbo frames larger than 8192 bytes will be
1258 * truncated. Disabling all bad frame filtering causes
1259 * the RX FIFO to operate in streaming mode, in which
1260 * case the XMAC will start transferring frames out of the
1261 * RX FIFO as soon as the FIFO threshold is reached.
1263 xm_write32(hw
, port
, XM_MODE
, XM_DEF_MODE
);
1267 * Initialize the Receive Counter Event Mask (XM_RX_EV_MSK)
1268 * - Enable all bits excepting 'Octets Rx OK Low CntOv'
1269 * and 'Octets Rx OK Hi Cnt Ov'.
1271 xm_write32(hw
, port
, XM_RX_EV_MSK
, XMR_DEF_MSK
);
1274 * Initialize the Transmit Counter Event Mask (XM_TX_EV_MSK)
1275 * - Enable all bits excepting 'Octets Tx OK Low CntOv'
1276 * and 'Octets Tx OK Hi Cnt Ov'.
1278 xm_write32(hw
, port
, XM_TX_EV_MSK
, XMT_DEF_MSK
);
1280 /* Configure MAC arbiter */
1281 skge_write16(hw
, B3_MA_TO_CTRL
, MA_RST_CLR
);
1283 /* configure timeout values */
1284 skge_write8(hw
, B3_MA_TOINI_RX1
, 72);
1285 skge_write8(hw
, B3_MA_TOINI_RX2
, 72);
1286 skge_write8(hw
, B3_MA_TOINI_TX1
, 72);
1287 skge_write8(hw
, B3_MA_TOINI_TX2
, 72);
1289 skge_write8(hw
, B3_MA_RCINI_RX1
, 0);
1290 skge_write8(hw
, B3_MA_RCINI_RX2
, 0);
1291 skge_write8(hw
, B3_MA_RCINI_TX1
, 0);
1292 skge_write8(hw
, B3_MA_RCINI_TX2
, 0);
1294 /* Configure Rx MAC FIFO */
1295 skge_write8(hw
, SK_REG(port
, RX_MFF_CTRL2
), MFF_RST_CLR
);
1296 skge_write16(hw
, SK_REG(port
, RX_MFF_CTRL1
), MFF_ENA_TIM_PAT
);
1297 skge_write8(hw
, SK_REG(port
, RX_MFF_CTRL2
), MFF_ENA_OP_MD
);
1299 /* Configure Tx MAC FIFO */
1300 skge_write8(hw
, SK_REG(port
, TX_MFF_CTRL2
), MFF_RST_CLR
);
1301 skge_write16(hw
, SK_REG(port
, TX_MFF_CTRL1
), MFF_TX_CTRL_DEF
);
1302 skge_write8(hw
, SK_REG(port
, TX_MFF_CTRL2
), MFF_ENA_OP_MD
);
1305 /* Enable frame flushing if jumbo frames used */
1306 skge_write16(hw
, SK_REG(port
,RX_MFF_CTRL1
), MFF_ENA_FLUSH
);
1308 /* enable timeout timers if normal frames */
1309 skge_write16(hw
, B3_PA_CTRL
,
1310 (port
== 0) ? PA_ENA_TO_TX1
: PA_ENA_TO_TX2
);
1314 static void genesis_stop(struct skge_port
*skge
)
1316 struct skge_hw
*hw
= skge
->hw
;
1317 int port
= skge
->port
;
1320 genesis_reset(hw
, port
);
1322 /* Clear Tx packet arbiter timeout IRQ */
1323 skge_write16(hw
, B3_PA_CTRL
,
1324 port
== 0 ? PA_CLR_TO_TX1
: PA_CLR_TO_TX2
);
1327 * If the transfer sticks at the MAC the STOP command will not
1328 * terminate if we don't flush the XMAC's transmit FIFO !
1330 xm_write32(hw
, port
, XM_MODE
,
1331 xm_read32(hw
, port
, XM_MODE
)|XM_MD_FTF
);
1335 skge_write16(hw
, SK_REG(port
, TX_MFF_CTRL1
), MFF_SET_MAC_RST
);
1337 /* For external PHYs there must be special handling */
1338 reg
= skge_read32(hw
, B2_GP_IO
);
1346 skge_write32(hw
, B2_GP_IO
, reg
);
1347 skge_read32(hw
, B2_GP_IO
);
1349 xm_write16(hw
, port
, XM_MMU_CMD
,
1350 xm_read16(hw
, port
, XM_MMU_CMD
)
1351 & ~(XM_MMU_ENA_RX
| XM_MMU_ENA_TX
));
1353 xm_read16(hw
, port
, XM_MMU_CMD
);
1357 static void genesis_get_stats(struct skge_port
*skge
, u64
*data
)
1359 struct skge_hw
*hw
= skge
->hw
;
1360 int port
= skge
->port
;
1362 unsigned long timeout
= jiffies
+ HZ
;
1364 xm_write16(hw
, port
,
1365 XM_STAT_CMD
, XM_SC_SNP_TXC
| XM_SC_SNP_RXC
);
1367 /* wait for update to complete */
1368 while (xm_read16(hw
, port
, XM_STAT_CMD
)
1369 & (XM_SC_SNP_TXC
| XM_SC_SNP_RXC
)) {
1370 if (time_after(jiffies
, timeout
))
1375 /* special case for 64 bit octet counter */
1376 data
[0] = (u64
) xm_read32(hw
, port
, XM_TXO_OK_HI
) << 32
1377 | xm_read32(hw
, port
, XM_TXO_OK_LO
);
1378 data
[1] = (u64
) xm_read32(hw
, port
, XM_RXO_OK_HI
) << 32
1379 | xm_read32(hw
, port
, XM_RXO_OK_LO
);
1381 for (i
= 2; i
< ARRAY_SIZE(skge_stats
); i
++)
1382 data
[i
] = xm_read32(hw
, port
, skge_stats
[i
].xmac_offset
);
1385 static void genesis_mac_intr(struct skge_hw
*hw
, int port
)
1387 struct skge_port
*skge
= netdev_priv(hw
->dev
[port
]);
1388 u16 status
= xm_read16(hw
, port
, XM_ISRC
);
1390 if (netif_msg_intr(skge
))
1391 printk(KERN_DEBUG PFX
"%s: mac interrupt status 0x%x\n",
1392 skge
->netdev
->name
, status
);
1394 if (status
& XM_IS_TXF_UR
) {
1395 xm_write32(hw
, port
, XM_MODE
, XM_MD_FTF
);
1396 ++skge
->net_stats
.tx_fifo_errors
;
1398 if (status
& XM_IS_RXF_OV
) {
1399 xm_write32(hw
, port
, XM_MODE
, XM_MD_FRF
);
1400 ++skge
->net_stats
.rx_fifo_errors
;
1404 static void genesis_link_up(struct skge_port
*skge
)
1406 struct skge_hw
*hw
= skge
->hw
;
1407 int port
= skge
->port
;
1411 cmd
= xm_read16(hw
, port
, XM_MMU_CMD
);
1414 * enabling pause frame reception is required for 1000BT
1415 * because the XMAC is not reset if the link is going down
1417 if (skge
->flow_control
== FLOW_MODE_NONE
||
1418 skge
->flow_control
== FLOW_MODE_LOC_SEND
)
1419 /* Disable Pause Frame Reception */
1420 cmd
|= XM_MMU_IGN_PF
;
1422 /* Enable Pause Frame Reception */
1423 cmd
&= ~XM_MMU_IGN_PF
;
1425 xm_write16(hw
, port
, XM_MMU_CMD
, cmd
);
1427 mode
= xm_read32(hw
, port
, XM_MODE
);
1428 if (skge
->flow_control
== FLOW_MODE_SYMMETRIC
||
1429 skge
->flow_control
== FLOW_MODE_LOC_SEND
) {
1431 * Configure Pause Frame Generation
1432 * Use internal and external Pause Frame Generation.
1433 * Sending pause frames is edge triggered.
1434 * Send a Pause frame with the maximum pause time if
1435 * internal oder external FIFO full condition occurs.
1436 * Send a zero pause time frame to re-start transmission.
1438 /* XM_PAUSE_DA = '010000C28001' (default) */
1439 /* XM_MAC_PTIME = 0xffff (maximum) */
1440 /* remember this value is defined in big endian (!) */
1441 xm_write16(hw
, port
, XM_MAC_PTIME
, 0xffff);
1443 mode
|= XM_PAUSE_MODE
;
1444 skge_write16(hw
, SK_REG(port
, RX_MFF_CTRL1
), MFF_ENA_PAUSE
);
1447 * disable pause frame generation is required for 1000BT
1448 * because the XMAC is not reset if the link is going down
1450 /* Disable Pause Mode in Mode Register */
1451 mode
&= ~XM_PAUSE_MODE
;
1453 skge_write16(hw
, SK_REG(port
, RX_MFF_CTRL1
), MFF_DIS_PAUSE
);
1456 xm_write32(hw
, port
, XM_MODE
, mode
);
1459 /* disable GP0 interrupt bit for external Phy */
1460 msk
|= XM_IS_INP_ASS
;
1462 xm_write16(hw
, port
, XM_IMSK
, msk
);
1463 xm_read16(hw
, port
, XM_ISRC
);
1465 /* get MMU Command Reg. */
1466 cmd
= xm_read16(hw
, port
, XM_MMU_CMD
);
1467 if (skge
->duplex
== DUPLEX_FULL
)
1468 cmd
|= XM_MMU_GMII_FD
;
1471 * Workaround BCOM Errata (#10523) for all BCom Phys
1472 * Enable Power Management after link up
1474 xm_phy_write(hw
, port
, PHY_BCOM_AUX_CTRL
,
1475 xm_phy_read(hw
, port
, PHY_BCOM_AUX_CTRL
)
1476 & ~PHY_B_AC_DIS_PM
);
1477 xm_phy_write(hw
, port
, PHY_BCOM_INT_MASK
, PHY_B_DEF_MSK
);
1480 xm_write16(hw
, port
, XM_MMU_CMD
,
1481 cmd
| XM_MMU_ENA_RX
| XM_MMU_ENA_TX
);
1486 static inline void bcom_phy_intr(struct skge_port
*skge
)
1488 struct skge_hw
*hw
= skge
->hw
;
1489 int port
= skge
->port
;
1492 isrc
= xm_phy_read(hw
, port
, PHY_BCOM_INT_STAT
);
1493 if (netif_msg_intr(skge
))
1494 printk(KERN_DEBUG PFX
"%s: phy interrupt status 0x%x\n",
1495 skge
->netdev
->name
, isrc
);
1497 if (isrc
& PHY_B_IS_PSE
)
1498 printk(KERN_ERR PFX
"%s: uncorrectable pair swap error\n",
1499 hw
->dev
[port
]->name
);
1501 /* Workaround BCom Errata:
1502 * enable and disable loopback mode if "NO HCD" occurs.
1504 if (isrc
& PHY_B_IS_NO_HDCL
) {
1505 u16 ctrl
= xm_phy_read(hw
, port
, PHY_BCOM_CTRL
);
1506 xm_phy_write(hw
, port
, PHY_BCOM_CTRL
,
1507 ctrl
| PHY_CT_LOOP
);
1508 xm_phy_write(hw
, port
, PHY_BCOM_CTRL
,
1509 ctrl
& ~PHY_CT_LOOP
);
1512 if (isrc
& (PHY_B_IS_AN_PR
| PHY_B_IS_LST_CHANGE
))
1513 bcom_check_link(hw
, port
);
1517 static int gm_phy_write(struct skge_hw
*hw
, int port
, u16 reg
, u16 val
)
1521 gma_write16(hw
, port
, GM_SMI_DATA
, val
);
1522 gma_write16(hw
, port
, GM_SMI_CTRL
,
1523 GM_SMI_CT_PHY_AD(hw
->phy_addr
) | GM_SMI_CT_REG_AD(reg
));
1524 for (i
= 0; i
< PHY_RETRIES
; i
++) {
1527 if (!(gma_read16(hw
, port
, GM_SMI_CTRL
) & GM_SMI_CT_BUSY
))
1531 printk(KERN_WARNING PFX
"%s: phy write timeout\n",
1532 hw
->dev
[port
]->name
);
1536 static int __gm_phy_read(struct skge_hw
*hw
, int port
, u16 reg
, u16
*val
)
1540 gma_write16(hw
, port
, GM_SMI_CTRL
,
1541 GM_SMI_CT_PHY_AD(hw
->phy_addr
)
1542 | GM_SMI_CT_REG_AD(reg
) | GM_SMI_CT_OP_RD
);
1544 for (i
= 0; i
< PHY_RETRIES
; i
++) {
1546 if (gma_read16(hw
, port
, GM_SMI_CTRL
) & GM_SMI_CT_RD_VAL
)
1552 *val
= gma_read16(hw
, port
, GM_SMI_DATA
);
1556 static u16
gm_phy_read(struct skge_hw
*hw
, int port
, u16 reg
)
1559 if (__gm_phy_read(hw
, port
, reg
, &v
))
1560 printk(KERN_WARNING PFX
"%s: phy read timeout\n",
1561 hw
->dev
[port
]->name
);
1565 /* Marvell Phy Initialization */
1566 static void yukon_init(struct skge_hw
*hw
, int port
)
1568 struct skge_port
*skge
= netdev_priv(hw
->dev
[port
]);
1569 u16 ctrl
, ct1000
, adv
;
1571 if (skge
->autoneg
== AUTONEG_ENABLE
) {
1572 u16 ectrl
= gm_phy_read(hw
, port
, PHY_MARV_EXT_CTRL
);
1574 ectrl
&= ~(PHY_M_EC_M_DSC_MSK
| PHY_M_EC_S_DSC_MSK
|
1575 PHY_M_EC_MAC_S_MSK
);
1576 ectrl
|= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ
);
1578 ectrl
|= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1);
1580 gm_phy_write(hw
, port
, PHY_MARV_EXT_CTRL
, ectrl
);
1583 ctrl
= gm_phy_read(hw
, port
, PHY_MARV_CTRL
);
1584 if (skge
->autoneg
== AUTONEG_DISABLE
)
1585 ctrl
&= ~PHY_CT_ANE
;
1587 ctrl
|= PHY_CT_RESET
;
1588 gm_phy_write(hw
, port
, PHY_MARV_CTRL
, ctrl
);
1594 if (skge
->autoneg
== AUTONEG_ENABLE
) {
1596 if (skge
->advertising
& ADVERTISED_1000baseT_Full
)
1597 ct1000
|= PHY_M_1000C_AFD
;
1598 if (skge
->advertising
& ADVERTISED_1000baseT_Half
)
1599 ct1000
|= PHY_M_1000C_AHD
;
1600 if (skge
->advertising
& ADVERTISED_100baseT_Full
)
1601 adv
|= PHY_M_AN_100_FD
;
1602 if (skge
->advertising
& ADVERTISED_100baseT_Half
)
1603 adv
|= PHY_M_AN_100_HD
;
1604 if (skge
->advertising
& ADVERTISED_10baseT_Full
)
1605 adv
|= PHY_M_AN_10_FD
;
1606 if (skge
->advertising
& ADVERTISED_10baseT_Half
)
1607 adv
|= PHY_M_AN_10_HD
;
1608 } else /* special defines for FIBER (88E1011S only) */
1609 adv
|= PHY_M_AN_1000X_AHD
| PHY_M_AN_1000X_AFD
;
1611 /* Set Flow-control capabilities */
1612 adv
|= phy_pause_map
[skge
->flow_control
];
1614 /* Restart Auto-negotiation */
1615 ctrl
|= PHY_CT_ANE
| PHY_CT_RE_CFG
;
1617 /* forced speed/duplex settings */
1618 ct1000
= PHY_M_1000C_MSE
;
1620 if (skge
->duplex
== DUPLEX_FULL
)
1621 ctrl
|= PHY_CT_DUP_MD
;
1623 switch (skge
->speed
) {
1625 ctrl
|= PHY_CT_SP1000
;
1628 ctrl
|= PHY_CT_SP100
;
1632 ctrl
|= PHY_CT_RESET
;
1635 gm_phy_write(hw
, port
, PHY_MARV_1000T_CTRL
, ct1000
);
1637 gm_phy_write(hw
, port
, PHY_MARV_AUNE_ADV
, adv
);
1638 gm_phy_write(hw
, port
, PHY_MARV_CTRL
, ctrl
);
1640 /* Enable phy interrupt on autonegotiation complete (or link up) */
1641 if (skge
->autoneg
== AUTONEG_ENABLE
)
1642 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, PHY_M_IS_AN_MSK
);
1644 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, PHY_M_IS_DEF_MSK
);
1647 static void yukon_reset(struct skge_hw
*hw
, int port
)
1649 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, 0);/* disable PHY IRQs */
1650 gma_write16(hw
, port
, GM_MC_ADDR_H1
, 0); /* clear MC hash */
1651 gma_write16(hw
, port
, GM_MC_ADDR_H2
, 0);
1652 gma_write16(hw
, port
, GM_MC_ADDR_H3
, 0);
1653 gma_write16(hw
, port
, GM_MC_ADDR_H4
, 0);
1655 gma_write16(hw
, port
, GM_RX_CTRL
,
1656 gma_read16(hw
, port
, GM_RX_CTRL
)
1657 | GM_RXCR_UCF_ENA
| GM_RXCR_MCF_ENA
);
1660 /* Apparently, early versions of Yukon-Lite had wrong chip_id? */
1661 static int is_yukon_lite_a0(struct skge_hw
*hw
)
1666 if (hw
->chip_id
!= CHIP_ID_YUKON
)
1669 reg
= skge_read32(hw
, B2_FAR
);
1670 skge_write8(hw
, B2_FAR
+ 3, 0xff);
1671 ret
= (skge_read8(hw
, B2_FAR
+ 3) != 0);
1672 skge_write32(hw
, B2_FAR
, reg
);
1676 static void yukon_mac_init(struct skge_hw
*hw
, int port
)
1678 struct skge_port
*skge
= netdev_priv(hw
->dev
[port
]);
1681 const u8
*addr
= hw
->dev
[port
]->dev_addr
;
1683 /* WA code for COMA mode -- set PHY reset */
1684 if (hw
->chip_id
== CHIP_ID_YUKON_LITE
&&
1685 hw
->chip_rev
>= CHIP_REV_YU_LITE_A3
) {
1686 reg
= skge_read32(hw
, B2_GP_IO
);
1687 reg
|= GP_DIR_9
| GP_IO_9
;
1688 skge_write32(hw
, B2_GP_IO
, reg
);
1692 skge_write32(hw
, SK_REG(port
, GPHY_CTRL
), GPC_RST_SET
);
1693 skge_write32(hw
, SK_REG(port
, GMAC_CTRL
), GMC_RST_SET
);
1695 /* WA code for COMA mode -- clear PHY reset */
1696 if (hw
->chip_id
== CHIP_ID_YUKON_LITE
&&
1697 hw
->chip_rev
>= CHIP_REV_YU_LITE_A3
) {
1698 reg
= skge_read32(hw
, B2_GP_IO
);
1701 skge_write32(hw
, B2_GP_IO
, reg
);
1704 /* Set hardware config mode */
1705 reg
= GPC_INT_POL_HI
| GPC_DIS_FC
| GPC_DIS_SLEEP
|
1706 GPC_ENA_XC
| GPC_ANEG_ADV_ALL_M
| GPC_ENA_PAUSE
;
1707 reg
|= hw
->copper
? GPC_HWCFG_GMII_COP
: GPC_HWCFG_GMII_FIB
;
1709 /* Clear GMC reset */
1710 skge_write32(hw
, SK_REG(port
, GPHY_CTRL
), reg
| GPC_RST_SET
);
1711 skge_write32(hw
, SK_REG(port
, GPHY_CTRL
), reg
| GPC_RST_CLR
);
1712 skge_write32(hw
, SK_REG(port
, GMAC_CTRL
), GMC_PAUSE_ON
| GMC_RST_CLR
);
1714 if (skge
->autoneg
== AUTONEG_DISABLE
) {
1715 reg
= GM_GPCR_AU_ALL_DIS
;
1716 gma_write16(hw
, port
, GM_GP_CTRL
,
1717 gma_read16(hw
, port
, GM_GP_CTRL
) | reg
);
1719 switch (skge
->speed
) {
1721 reg
&= ~GM_GPCR_SPEED_100
;
1722 reg
|= GM_GPCR_SPEED_1000
;
1725 reg
&= ~GM_GPCR_SPEED_1000
;
1726 reg
|= GM_GPCR_SPEED_100
;
1729 reg
&= ~(GM_GPCR_SPEED_1000
| GM_GPCR_SPEED_100
);
1733 if (skge
->duplex
== DUPLEX_FULL
)
1734 reg
|= GM_GPCR_DUP_FULL
;
1736 reg
= GM_GPCR_SPEED_1000
| GM_GPCR_SPEED_100
| GM_GPCR_DUP_FULL
;
1738 switch (skge
->flow_control
) {
1739 case FLOW_MODE_NONE
:
1740 skge_write32(hw
, SK_REG(port
, GMAC_CTRL
), GMC_PAUSE_OFF
);
1741 reg
|= GM_GPCR_FC_TX_DIS
| GM_GPCR_FC_RX_DIS
| GM_GPCR_AU_FCT_DIS
;
1743 case FLOW_MODE_LOC_SEND
:
1744 /* disable Rx flow-control */
1745 reg
|= GM_GPCR_FC_RX_DIS
| GM_GPCR_AU_FCT_DIS
;
1748 gma_write16(hw
, port
, GM_GP_CTRL
, reg
);
1749 skge_read16(hw
, SK_REG(port
, GMAC_IRQ_SRC
));
1751 yukon_init(hw
, port
);
1754 reg
= gma_read16(hw
, port
, GM_PHY_ADDR
);
1755 gma_write16(hw
, port
, GM_PHY_ADDR
, reg
| GM_PAR_MIB_CLR
);
1757 for (i
= 0; i
< GM_MIB_CNT_SIZE
; i
++)
1758 gma_read16(hw
, port
, GM_MIB_CNT_BASE
+ 8*i
);
1759 gma_write16(hw
, port
, GM_PHY_ADDR
, reg
);
1761 /* transmit control */
1762 gma_write16(hw
, port
, GM_TX_CTRL
, TX_COL_THR(TX_COL_DEF
));
1764 /* receive control reg: unicast + multicast + no FCS */
1765 gma_write16(hw
, port
, GM_RX_CTRL
,
1766 GM_RXCR_UCF_ENA
| GM_RXCR_CRC_DIS
| GM_RXCR_MCF_ENA
);
1768 /* transmit flow control */
1769 gma_write16(hw
, port
, GM_TX_FLOW_CTRL
, 0xffff);
1771 /* transmit parameter */
1772 gma_write16(hw
, port
, GM_TX_PARAM
,
1773 TX_JAM_LEN_VAL(TX_JAM_LEN_DEF
) |
1774 TX_JAM_IPG_VAL(TX_JAM_IPG_DEF
) |
1775 TX_IPG_JAM_DATA(TX_IPG_JAM_DEF
));
1777 /* serial mode register */
1778 reg
= GM_SMOD_VLAN_ENA
| IPG_DATA_VAL(IPG_DATA_DEF
);
1779 if (hw
->dev
[port
]->mtu
> 1500)
1780 reg
|= GM_SMOD_JUMBO_ENA
;
1782 gma_write16(hw
, port
, GM_SERIAL_MODE
, reg
);
1784 /* physical address: used for pause frames */
1785 gma_set_addr(hw
, port
, GM_SRC_ADDR_1L
, addr
);
1786 /* virtual address for data */
1787 gma_set_addr(hw
, port
, GM_SRC_ADDR_2L
, addr
);
1789 /* enable interrupt mask for counter overflows */
1790 gma_write16(hw
, port
, GM_TX_IRQ_MSK
, 0);
1791 gma_write16(hw
, port
, GM_RX_IRQ_MSK
, 0);
1792 gma_write16(hw
, port
, GM_TR_IRQ_MSK
, 0);
1794 /* Initialize Mac Fifo */
1796 /* Configure Rx MAC FIFO */
1797 skge_write16(hw
, SK_REG(port
, RX_GMF_FL_MSK
), RX_FF_FL_DEF_MSK
);
1798 reg
= GMF_OPER_ON
| GMF_RX_F_FL_ON
;
1800 /* disable Rx GMAC FIFO Flush for YUKON-Lite Rev. A0 only */
1801 if (is_yukon_lite_a0(hw
))
1802 reg
&= ~GMF_RX_F_FL_ON
;
1804 skge_write8(hw
, SK_REG(port
, RX_GMF_CTRL_T
), GMF_RST_CLR
);
1805 skge_write16(hw
, SK_REG(port
, RX_GMF_CTRL_T
), reg
);
1807 * because Pause Packet Truncation in GMAC is not working
1808 * we have to increase the Flush Threshold to 64 bytes
1809 * in order to flush pause packets in Rx FIFO on Yukon-1
1811 skge_write16(hw
, SK_REG(port
, RX_GMF_FL_THR
), RX_GMF_FL_THR_DEF
+1);
1813 /* Configure Tx MAC FIFO */
1814 skge_write8(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_RST_CLR
);
1815 skge_write16(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_OPER_ON
);
1818 /* Go into power down mode */
1819 static void yukon_suspend(struct skge_hw
*hw
, int port
)
1823 ctrl
= gm_phy_read(hw
, port
, PHY_MARV_PHY_CTRL
);
1824 ctrl
|= PHY_M_PC_POL_R_DIS
;
1825 gm_phy_write(hw
, port
, PHY_MARV_PHY_CTRL
, ctrl
);
1827 ctrl
= gm_phy_read(hw
, port
, PHY_MARV_CTRL
);
1828 ctrl
|= PHY_CT_RESET
;
1829 gm_phy_write(hw
, port
, PHY_MARV_CTRL
, ctrl
);
1831 /* switch IEEE compatible power down mode on */
1832 ctrl
= gm_phy_read(hw
, port
, PHY_MARV_CTRL
);
1833 ctrl
|= PHY_CT_PDOWN
;
1834 gm_phy_write(hw
, port
, PHY_MARV_CTRL
, ctrl
);
1837 static void yukon_stop(struct skge_port
*skge
)
1839 struct skge_hw
*hw
= skge
->hw
;
1840 int port
= skge
->port
;
1842 skge_write8(hw
, SK_REG(port
, GMAC_IRQ_MSK
), 0);
1843 yukon_reset(hw
, port
);
1845 gma_write16(hw
, port
, GM_GP_CTRL
,
1846 gma_read16(hw
, port
, GM_GP_CTRL
)
1847 & ~(GM_GPCR_TX_ENA
|GM_GPCR_RX_ENA
));
1848 gma_read16(hw
, port
, GM_GP_CTRL
);
1850 yukon_suspend(hw
, port
);
1852 /* set GPHY Control reset */
1853 skge_write8(hw
, SK_REG(port
, GPHY_CTRL
), GPC_RST_SET
);
1854 skge_write8(hw
, SK_REG(port
, GMAC_CTRL
), GMC_RST_SET
);
1857 static void yukon_get_stats(struct skge_port
*skge
, u64
*data
)
1859 struct skge_hw
*hw
= skge
->hw
;
1860 int port
= skge
->port
;
1863 data
[0] = (u64
) gma_read32(hw
, port
, GM_TXO_OK_HI
) << 32
1864 | gma_read32(hw
, port
, GM_TXO_OK_LO
);
1865 data
[1] = (u64
) gma_read32(hw
, port
, GM_RXO_OK_HI
) << 32
1866 | gma_read32(hw
, port
, GM_RXO_OK_LO
);
1868 for (i
= 2; i
< ARRAY_SIZE(skge_stats
); i
++)
1869 data
[i
] = gma_read32(hw
, port
,
1870 skge_stats
[i
].gma_offset
);
1873 static void yukon_mac_intr(struct skge_hw
*hw
, int port
)
1875 struct net_device
*dev
= hw
->dev
[port
];
1876 struct skge_port
*skge
= netdev_priv(dev
);
1877 u8 status
= skge_read8(hw
, SK_REG(port
, GMAC_IRQ_SRC
));
1879 if (netif_msg_intr(skge
))
1880 printk(KERN_DEBUG PFX
"%s: mac interrupt status 0x%x\n",
1883 if (status
& GM_IS_RX_FF_OR
) {
1884 ++skge
->net_stats
.rx_fifo_errors
;
1885 skge_write8(hw
, SK_REG(port
, RX_GMF_CTRL_T
), GMF_CLI_RX_FO
);
1888 if (status
& GM_IS_TX_FF_UR
) {
1889 ++skge
->net_stats
.tx_fifo_errors
;
1890 skge_write8(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_CLI_TX_FU
);
1895 static u16
yukon_speed(const struct skge_hw
*hw
, u16 aux
)
1897 switch (aux
& PHY_M_PS_SPEED_MSK
) {
1898 case PHY_M_PS_SPEED_1000
:
1900 case PHY_M_PS_SPEED_100
:
1907 static void yukon_link_up(struct skge_port
*skge
)
1909 struct skge_hw
*hw
= skge
->hw
;
1910 int port
= skge
->port
;
1913 /* Enable Transmit FIFO Underrun */
1914 skge_write8(hw
, SK_REG(port
, GMAC_IRQ_MSK
), GMAC_DEF_MSK
);
1916 reg
= gma_read16(hw
, port
, GM_GP_CTRL
);
1917 if (skge
->duplex
== DUPLEX_FULL
|| skge
->autoneg
== AUTONEG_ENABLE
)
1918 reg
|= GM_GPCR_DUP_FULL
;
1921 reg
|= GM_GPCR_RX_ENA
| GM_GPCR_TX_ENA
;
1922 gma_write16(hw
, port
, GM_GP_CTRL
, reg
);
1924 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, PHY_M_IS_DEF_MSK
);
1928 static void yukon_link_down(struct skge_port
*skge
)
1930 struct skge_hw
*hw
= skge
->hw
;
1931 int port
= skge
->port
;
1934 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, 0);
1936 ctrl
= gma_read16(hw
, port
, GM_GP_CTRL
);
1937 ctrl
&= ~(GM_GPCR_RX_ENA
| GM_GPCR_TX_ENA
);
1938 gma_write16(hw
, port
, GM_GP_CTRL
, ctrl
);
1940 if (skge
->flow_control
== FLOW_MODE_REM_SEND
) {
1941 /* restore Asymmetric Pause bit */
1942 gm_phy_write(hw
, port
, PHY_MARV_AUNE_ADV
,
1943 gm_phy_read(hw
, port
,
1949 yukon_reset(hw
, port
);
1950 skge_link_down(skge
);
1952 yukon_init(hw
, port
);
1955 static void yukon_phy_intr(struct skge_port
*skge
)
1957 struct skge_hw
*hw
= skge
->hw
;
1958 int port
= skge
->port
;
1959 const char *reason
= NULL
;
1960 u16 istatus
, phystat
;
1962 istatus
= gm_phy_read(hw
, port
, PHY_MARV_INT_STAT
);
1963 phystat
= gm_phy_read(hw
, port
, PHY_MARV_PHY_STAT
);
1965 if (netif_msg_intr(skge
))
1966 printk(KERN_DEBUG PFX
"%s: phy interrupt status 0x%x 0x%x\n",
1967 skge
->netdev
->name
, istatus
, phystat
);
1969 if (istatus
& PHY_M_IS_AN_COMPL
) {
1970 if (gm_phy_read(hw
, port
, PHY_MARV_AUNE_LP
)
1972 reason
= "remote fault";
1976 if (gm_phy_read(hw
, port
, PHY_MARV_1000T_STAT
) & PHY_B_1000S_MSF
) {
1977 reason
= "master/slave fault";
1981 if (!(phystat
& PHY_M_PS_SPDUP_RES
)) {
1982 reason
= "speed/duplex";
1986 skge
->duplex
= (phystat
& PHY_M_PS_FULL_DUP
)
1987 ? DUPLEX_FULL
: DUPLEX_HALF
;
1988 skge
->speed
= yukon_speed(hw
, phystat
);
1990 /* We are using IEEE 802.3z/D5.0 Table 37-4 */
1991 switch (phystat
& PHY_M_PS_PAUSE_MSK
) {
1992 case PHY_M_PS_PAUSE_MSK
:
1993 skge
->flow_control
= FLOW_MODE_SYMMETRIC
;
1995 case PHY_M_PS_RX_P_EN
:
1996 skge
->flow_control
= FLOW_MODE_REM_SEND
;
1998 case PHY_M_PS_TX_P_EN
:
1999 skge
->flow_control
= FLOW_MODE_LOC_SEND
;
2002 skge
->flow_control
= FLOW_MODE_NONE
;
2005 if (skge
->flow_control
== FLOW_MODE_NONE
||
2006 (skge
->speed
< SPEED_1000
&& skge
->duplex
== DUPLEX_HALF
))
2007 skge_write8(hw
, SK_REG(port
, GMAC_CTRL
), GMC_PAUSE_OFF
);
2009 skge_write8(hw
, SK_REG(port
, GMAC_CTRL
), GMC_PAUSE_ON
);
2010 yukon_link_up(skge
);
2014 if (istatus
& PHY_M_IS_LSP_CHANGE
)
2015 skge
->speed
= yukon_speed(hw
, phystat
);
2017 if (istatus
& PHY_M_IS_DUP_CHANGE
)
2018 skge
->duplex
= (phystat
& PHY_M_PS_FULL_DUP
) ? DUPLEX_FULL
: DUPLEX_HALF
;
2019 if (istatus
& PHY_M_IS_LST_CHANGE
) {
2020 if (phystat
& PHY_M_PS_LINK_UP
)
2021 yukon_link_up(skge
);
2023 yukon_link_down(skge
);
2027 printk(KERN_ERR PFX
"%s: autonegotiation failed (%s)\n",
2028 skge
->netdev
->name
, reason
);
2030 /* XXX restart autonegotiation? */
2033 static void skge_phy_reset(struct skge_port
*skge
)
2035 struct skge_hw
*hw
= skge
->hw
;
2036 int port
= skge
->port
;
2038 netif_stop_queue(skge
->netdev
);
2039 netif_carrier_off(skge
->netdev
);
2041 spin_lock_bh(&hw
->phy_lock
);
2042 if (hw
->chip_id
== CHIP_ID_GENESIS
) {
2043 genesis_reset(hw
, port
);
2044 genesis_mac_init(hw
, port
);
2046 yukon_reset(hw
, port
);
2047 yukon_init(hw
, port
);
2049 spin_unlock_bh(&hw
->phy_lock
);
2052 /* Basic MII support */
2053 static int skge_ioctl(struct net_device
*dev
, struct ifreq
*ifr
, int cmd
)
2055 struct mii_ioctl_data
*data
= if_mii(ifr
);
2056 struct skge_port
*skge
= netdev_priv(dev
);
2057 struct skge_hw
*hw
= skge
->hw
;
2058 int err
= -EOPNOTSUPP
;
2060 if (!netif_running(dev
))
2061 return -ENODEV
; /* Phy still in reset */
2065 data
->phy_id
= hw
->phy_addr
;
2070 spin_lock_bh(&hw
->phy_lock
);
2071 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2072 err
= __xm_phy_read(hw
, skge
->port
, data
->reg_num
& 0x1f, &val
);
2074 err
= __gm_phy_read(hw
, skge
->port
, data
->reg_num
& 0x1f, &val
);
2075 spin_unlock_bh(&hw
->phy_lock
);
2076 data
->val_out
= val
;
2081 if (!capable(CAP_NET_ADMIN
))
2084 spin_lock_bh(&hw
->phy_lock
);
2085 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2086 err
= xm_phy_write(hw
, skge
->port
, data
->reg_num
& 0x1f,
2089 err
= gm_phy_write(hw
, skge
->port
, data
->reg_num
& 0x1f,
2091 spin_unlock_bh(&hw
->phy_lock
);
2097 static void skge_ramset(struct skge_hw
*hw
, u16 q
, u32 start
, size_t len
)
2103 end
= start
+ len
- 1;
2105 skge_write8(hw
, RB_ADDR(q
, RB_CTRL
), RB_RST_CLR
);
2106 skge_write32(hw
, RB_ADDR(q
, RB_START
), start
);
2107 skge_write32(hw
, RB_ADDR(q
, RB_WP
), start
);
2108 skge_write32(hw
, RB_ADDR(q
, RB_RP
), start
);
2109 skge_write32(hw
, RB_ADDR(q
, RB_END
), end
);
2111 if (q
== Q_R1
|| q
== Q_R2
) {
2112 /* Set thresholds on receive queue's */
2113 skge_write32(hw
, RB_ADDR(q
, RB_RX_UTPP
),
2115 skge_write32(hw
, RB_ADDR(q
, RB_RX_LTPP
),
2118 /* Enable store & forward on Tx queue's because
2119 * Tx FIFO is only 4K on Genesis and 1K on Yukon
2121 skge_write8(hw
, RB_ADDR(q
, RB_CTRL
), RB_ENA_STFWD
);
2124 skge_write8(hw
, RB_ADDR(q
, RB_CTRL
), RB_ENA_OP_MD
);
2127 /* Setup Bus Memory Interface */
2128 static void skge_qset(struct skge_port
*skge
, u16 q
,
2129 const struct skge_element
*e
)
2131 struct skge_hw
*hw
= skge
->hw
;
2132 u32 watermark
= 0x600;
2133 u64 base
= skge
->dma
+ (e
->desc
- skge
->mem
);
2135 /* optimization to reduce window on 32bit/33mhz */
2136 if ((skge_read16(hw
, B0_CTST
) & (CS_BUS_CLOCK
| CS_BUS_SLOT_SZ
)) == 0)
2139 skge_write32(hw
, Q_ADDR(q
, Q_CSR
), CSR_CLR_RESET
);
2140 skge_write32(hw
, Q_ADDR(q
, Q_F
), watermark
);
2141 skge_write32(hw
, Q_ADDR(q
, Q_DA_H
), (u32
)(base
>> 32));
2142 skge_write32(hw
, Q_ADDR(q
, Q_DA_L
), (u32
)base
);
2145 static int skge_up(struct net_device
*dev
)
2147 struct skge_port
*skge
= netdev_priv(dev
);
2148 struct skge_hw
*hw
= skge
->hw
;
2149 int port
= skge
->port
;
2150 u32 chunk
, ram_addr
;
2151 size_t rx_size
, tx_size
;
2154 if (netif_msg_ifup(skge
))
2155 printk(KERN_INFO PFX
"%s: enabling interface\n", dev
->name
);
2157 if (dev
->mtu
> RX_BUF_SIZE
)
2158 skge
->rx_buf_size
= dev
->mtu
+ ETH_HLEN
+ NET_IP_ALIGN
;
2160 skge
->rx_buf_size
= RX_BUF_SIZE
;
2163 rx_size
= skge
->rx_ring
.count
* sizeof(struct skge_rx_desc
);
2164 tx_size
= skge
->tx_ring
.count
* sizeof(struct skge_tx_desc
);
2165 skge
->mem_size
= tx_size
+ rx_size
;
2166 skge
->mem
= pci_alloc_consistent(hw
->pdev
, skge
->mem_size
, &skge
->dma
);
2170 BUG_ON(skge
->dma
& 7);
2172 if ((u64
)skge
->dma
>> 32 != ((u64
) skge
->dma
+ skge
->mem_size
) >> 32) {
2173 printk(KERN_ERR PFX
"pci_alloc_consistent region crosses 4G boundary\n");
2178 memset(skge
->mem
, 0, skge
->mem_size
);
2180 if ((err
= skge_ring_alloc(&skge
->rx_ring
, skge
->mem
, skge
->dma
)))
2183 err
= skge_rx_fill(skge
);
2187 if ((err
= skge_ring_alloc(&skge
->tx_ring
, skge
->mem
+ rx_size
,
2188 skge
->dma
+ rx_size
)))
2191 skge
->tx_avail
= skge
->tx_ring
.count
- 1;
2193 /* Initialize MAC */
2194 spin_lock_bh(&hw
->phy_lock
);
2195 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2196 genesis_mac_init(hw
, port
);
2198 yukon_mac_init(hw
, port
);
2199 spin_unlock_bh(&hw
->phy_lock
);
2201 /* Configure RAMbuffers */
2202 chunk
= hw
->ram_size
/ ((hw
->ports
+ 1)*2);
2203 ram_addr
= hw
->ram_offset
+ 2 * chunk
* port
;
2205 skge_ramset(hw
, rxqaddr
[port
], ram_addr
, chunk
);
2206 skge_qset(skge
, rxqaddr
[port
], skge
->rx_ring
.to_clean
);
2208 BUG_ON(skge
->tx_ring
.to_use
!= skge
->tx_ring
.to_clean
);
2209 skge_ramset(hw
, txqaddr
[port
], ram_addr
+chunk
, chunk
);
2210 skge_qset(skge
, txqaddr
[port
], skge
->tx_ring
.to_use
);
2212 /* Start receiver BMU */
2214 skge_write8(hw
, Q_ADDR(rxqaddr
[port
], Q_CSR
), CSR_START
| CSR_IRQ_CL_F
);
2215 skge_led(skge
, LED_MODE_ON
);
2220 skge_rx_clean(skge
);
2221 kfree(skge
->rx_ring
.start
);
2223 pci_free_consistent(hw
->pdev
, skge
->mem_size
, skge
->mem
, skge
->dma
);
2229 static int skge_down(struct net_device
*dev
)
2231 struct skge_port
*skge
= netdev_priv(dev
);
2232 struct skge_hw
*hw
= skge
->hw
;
2233 int port
= skge
->port
;
2235 if (skge
->mem
== NULL
)
2238 if (netif_msg_ifdown(skge
))
2239 printk(KERN_INFO PFX
"%s: disabling interface\n", dev
->name
);
2241 netif_stop_queue(dev
);
2243 skge_write8(skge
->hw
, SK_REG(skge
->port
, LNK_LED_REG
), LED_OFF
);
2244 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2249 /* Stop transmitter */
2250 skge_write8(hw
, Q_ADDR(txqaddr
[port
], Q_CSR
), CSR_STOP
);
2251 skge_write32(hw
, RB_ADDR(txqaddr
[port
], RB_CTRL
),
2252 RB_RST_SET
|RB_DIS_OP_MD
);
2255 /* Disable Force Sync bit and Enable Alloc bit */
2256 skge_write8(hw
, SK_REG(port
, TXA_CTRL
),
2257 TXA_DIS_FSYNC
| TXA_DIS_ALLOC
| TXA_STOP_RC
);
2259 /* Stop Interval Timer and Limit Counter of Tx Arbiter */
2260 skge_write32(hw
, SK_REG(port
, TXA_ITI_INI
), 0L);
2261 skge_write32(hw
, SK_REG(port
, TXA_LIM_INI
), 0L);
2263 /* Reset PCI FIFO */
2264 skge_write32(hw
, Q_ADDR(txqaddr
[port
], Q_CSR
), CSR_SET_RESET
);
2265 skge_write32(hw
, RB_ADDR(txqaddr
[port
], RB_CTRL
), RB_RST_SET
);
2267 /* Reset the RAM Buffer async Tx queue */
2268 skge_write8(hw
, RB_ADDR(port
== 0 ? Q_XA1
: Q_XA2
, RB_CTRL
), RB_RST_SET
);
2270 skge_write8(hw
, Q_ADDR(rxqaddr
[port
], Q_CSR
), CSR_STOP
);
2271 skge_write32(hw
, RB_ADDR(port
? Q_R2
: Q_R1
, RB_CTRL
),
2272 RB_RST_SET
|RB_DIS_OP_MD
);
2273 skge_write32(hw
, Q_ADDR(rxqaddr
[port
], Q_CSR
), CSR_SET_RESET
);
2275 if (hw
->chip_id
== CHIP_ID_GENESIS
) {
2276 skge_write8(hw
, SK_REG(port
, TX_MFF_CTRL2
), MFF_RST_SET
);
2277 skge_write8(hw
, SK_REG(port
, RX_MFF_CTRL2
), MFF_RST_SET
);
2279 skge_write8(hw
, SK_REG(port
, RX_GMF_CTRL_T
), GMF_RST_SET
);
2280 skge_write8(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_RST_SET
);
2283 skge_led(skge
, LED_MODE_OFF
);
2285 skge_tx_clean(skge
);
2286 skge_rx_clean(skge
);
2288 kfree(skge
->rx_ring
.start
);
2289 kfree(skge
->tx_ring
.start
);
2290 pci_free_consistent(hw
->pdev
, skge
->mem_size
, skge
->mem
, skge
->dma
);
2295 static int skge_xmit_frame(struct sk_buff
*skb
, struct net_device
*dev
)
2297 struct skge_port
*skge
= netdev_priv(dev
);
2298 struct skge_hw
*hw
= skge
->hw
;
2299 struct skge_ring
*ring
= &skge
->tx_ring
;
2300 struct skge_element
*e
;
2301 struct skge_tx_desc
*td
;
2306 skb
= skb_padto(skb
, ETH_ZLEN
);
2308 return NETDEV_TX_OK
;
2310 if (!spin_trylock(&skge
->tx_lock
)) {
2311 /* Collision - tell upper layer to requeue */
2312 return NETDEV_TX_LOCKED
;
2315 if (unlikely(skge
->tx_avail
< skb_shinfo(skb
)->nr_frags
+1)) {
2316 if (!netif_queue_stopped(dev
)) {
2317 netif_stop_queue(dev
);
2319 printk(KERN_WARNING PFX
"%s: ring full when queue awake!\n",
2322 spin_unlock(&skge
->tx_lock
);
2323 return NETDEV_TX_BUSY
;
2329 len
= skb_headlen(skb
);
2330 map
= pci_map_single(hw
->pdev
, skb
->data
, len
, PCI_DMA_TODEVICE
);
2331 pci_unmap_addr_set(e
, mapaddr
, map
);
2332 pci_unmap_len_set(e
, maplen
, len
);
2335 td
->dma_hi
= map
>> 32;
2337 if (skb
->ip_summed
== CHECKSUM_HW
) {
2338 int offset
= skb
->h
.raw
- skb
->data
;
2340 /* This seems backwards, but it is what the sk98lin
2341 * does. Looks like hardware is wrong?
2343 if (skb
->h
.ipiph
->protocol
== IPPROTO_UDP
2344 && hw
->chip_rev
== 0 && hw
->chip_id
== CHIP_ID_YUKON
)
2345 control
= BMU_TCP_CHECK
;
2347 control
= BMU_UDP_CHECK
;
2350 td
->csum_start
= offset
;
2351 td
->csum_write
= offset
+ skb
->csum
;
2353 control
= BMU_CHECK
;
2355 if (!skb_shinfo(skb
)->nr_frags
) /* single buffer i.e. no fragments */
2356 control
|= BMU_EOF
| BMU_IRQ_EOF
;
2358 struct skge_tx_desc
*tf
= td
;
2360 control
|= BMU_STFWD
;
2361 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++) {
2362 skb_frag_t
*frag
= &skb_shinfo(skb
)->frags
[i
];
2364 map
= pci_map_page(hw
->pdev
, frag
->page
, frag
->page_offset
,
2365 frag
->size
, PCI_DMA_TODEVICE
);
2371 tf
->dma_hi
= (u64
) map
>> 32;
2372 pci_unmap_addr_set(e
, mapaddr
, map
);
2373 pci_unmap_len_set(e
, maplen
, frag
->size
);
2375 tf
->control
= BMU_OWN
| BMU_SW
| control
| frag
->size
;
2377 tf
->control
|= BMU_EOF
| BMU_IRQ_EOF
;
2379 /* Make sure all the descriptors written */
2381 td
->control
= BMU_OWN
| BMU_SW
| BMU_STF
| control
| len
;
2384 skge_write8(hw
, Q_ADDR(txqaddr
[skge
->port
], Q_CSR
), CSR_START
);
2386 if (netif_msg_tx_queued(skge
))
2387 printk(KERN_DEBUG
"%s: tx queued, slot %td, len %d\n",
2388 dev
->name
, e
- ring
->start
, skb
->len
);
2390 ring
->to_use
= e
->next
;
2391 skge
->tx_avail
-= skb_shinfo(skb
)->nr_frags
+ 1;
2392 if (skge
->tx_avail
<= MAX_SKB_FRAGS
+ 1) {
2393 pr_debug("%s: transmit queue full\n", dev
->name
);
2394 netif_stop_queue(dev
);
2397 dev
->trans_start
= jiffies
;
2398 spin_unlock(&skge
->tx_lock
);
2400 return NETDEV_TX_OK
;
2403 static inline void skge_tx_free(struct skge_hw
*hw
, struct skge_element
*e
)
2405 /* This ring element can be skb or fragment */
2407 pci_unmap_single(hw
->pdev
,
2408 pci_unmap_addr(e
, mapaddr
),
2409 pci_unmap_len(e
, maplen
),
2411 dev_kfree_skb(e
->skb
);
2414 pci_unmap_page(hw
->pdev
,
2415 pci_unmap_addr(e
, mapaddr
),
2416 pci_unmap_len(e
, maplen
),
2421 static void skge_tx_clean(struct skge_port
*skge
)
2423 struct skge_ring
*ring
= &skge
->tx_ring
;
2424 struct skge_element
*e
;
2426 spin_lock_bh(&skge
->tx_lock
);
2427 for (e
= ring
->to_clean
; e
!= ring
->to_use
; e
= e
->next
) {
2429 skge_tx_free(skge
->hw
, e
);
2432 spin_unlock_bh(&skge
->tx_lock
);
2435 static void skge_tx_timeout(struct net_device
*dev
)
2437 struct skge_port
*skge
= netdev_priv(dev
);
2439 if (netif_msg_timer(skge
))
2440 printk(KERN_DEBUG PFX
"%s: tx timeout\n", dev
->name
);
2442 skge_write8(skge
->hw
, Q_ADDR(txqaddr
[skge
->port
], Q_CSR
), CSR_STOP
);
2443 skge_tx_clean(skge
);
2446 static int skge_change_mtu(struct net_device
*dev
, int new_mtu
)
2450 if (new_mtu
< ETH_ZLEN
|| new_mtu
> ETH_JUMBO_MTU
)
2453 if (!netif_running(dev
)) {
2469 static void genesis_set_multicast(struct net_device
*dev
)
2471 struct skge_port
*skge
= netdev_priv(dev
);
2472 struct skge_hw
*hw
= skge
->hw
;
2473 int port
= skge
->port
;
2474 int i
, count
= dev
->mc_count
;
2475 struct dev_mc_list
*list
= dev
->mc_list
;
2479 mode
= xm_read32(hw
, port
, XM_MODE
);
2480 mode
|= XM_MD_ENA_HASH
;
2481 if (dev
->flags
& IFF_PROMISC
)
2482 mode
|= XM_MD_ENA_PROM
;
2484 mode
&= ~XM_MD_ENA_PROM
;
2486 if (dev
->flags
& IFF_ALLMULTI
)
2487 memset(filter
, 0xff, sizeof(filter
));
2489 memset(filter
, 0, sizeof(filter
));
2490 for (i
= 0; list
&& i
< count
; i
++, list
= list
->next
) {
2492 crc
= ether_crc_le(ETH_ALEN
, list
->dmi_addr
);
2494 filter
[bit
/8] |= 1 << (bit
%8);
2498 xm_write32(hw
, port
, XM_MODE
, mode
);
2499 xm_outhash(hw
, port
, XM_HSM
, filter
);
2502 static void yukon_set_multicast(struct net_device
*dev
)
2504 struct skge_port
*skge
= netdev_priv(dev
);
2505 struct skge_hw
*hw
= skge
->hw
;
2506 int port
= skge
->port
;
2507 struct dev_mc_list
*list
= dev
->mc_list
;
2511 memset(filter
, 0, sizeof(filter
));
2513 reg
= gma_read16(hw
, port
, GM_RX_CTRL
);
2514 reg
|= GM_RXCR_UCF_ENA
;
2516 if (dev
->flags
& IFF_PROMISC
) /* promiscuous */
2517 reg
&= ~(GM_RXCR_UCF_ENA
| GM_RXCR_MCF_ENA
);
2518 else if (dev
->flags
& IFF_ALLMULTI
) /* all multicast */
2519 memset(filter
, 0xff, sizeof(filter
));
2520 else if (dev
->mc_count
== 0) /* no multicast */
2521 reg
&= ~GM_RXCR_MCF_ENA
;
2524 reg
|= GM_RXCR_MCF_ENA
;
2526 for (i
= 0; list
&& i
< dev
->mc_count
; i
++, list
= list
->next
) {
2527 u32 bit
= ether_crc(ETH_ALEN
, list
->dmi_addr
) & 0x3f;
2528 filter
[bit
/8] |= 1 << (bit
%8);
2533 gma_write16(hw
, port
, GM_MC_ADDR_H1
,
2534 (u16
)filter
[0] | ((u16
)filter
[1] << 8));
2535 gma_write16(hw
, port
, GM_MC_ADDR_H2
,
2536 (u16
)filter
[2] | ((u16
)filter
[3] << 8));
2537 gma_write16(hw
, port
, GM_MC_ADDR_H3
,
2538 (u16
)filter
[4] | ((u16
)filter
[5] << 8));
2539 gma_write16(hw
, port
, GM_MC_ADDR_H4
,
2540 (u16
)filter
[6] | ((u16
)filter
[7] << 8));
2542 gma_write16(hw
, port
, GM_RX_CTRL
, reg
);
2545 static inline u16
phy_length(const struct skge_hw
*hw
, u32 status
)
2547 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2548 return status
>> XMR_FS_LEN_SHIFT
;
2550 return status
>> GMR_FS_LEN_SHIFT
;
2553 static inline int bad_phy_status(const struct skge_hw
*hw
, u32 status
)
2555 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2556 return (status
& (XMR_FS_ERR
| XMR_FS_2L_VLAN
)) != 0;
2558 return (status
& GMR_FS_ANY_ERR
) ||
2559 (status
& GMR_FS_RX_OK
) == 0;
2563 /* Get receive buffer from descriptor.
2564 * Handles copy of small buffers and reallocation failures
2566 static inline struct sk_buff
*skge_rx_get(struct skge_port
*skge
,
2567 struct skge_element
*e
,
2568 u32 control
, u32 status
, u16 csum
)
2570 struct sk_buff
*skb
;
2571 u16 len
= control
& BMU_BBC
;
2573 if (unlikely(netif_msg_rx_status(skge
)))
2574 printk(KERN_DEBUG PFX
"%s: rx slot %td status 0x%x len %d\n",
2575 skge
->netdev
->name
, e
- skge
->rx_ring
.start
,
2578 if (len
> skge
->rx_buf_size
)
2581 if ((control
& (BMU_EOF
|BMU_STF
)) != (BMU_STF
|BMU_EOF
))
2584 if (bad_phy_status(skge
->hw
, status
))
2587 if (phy_length(skge
->hw
, status
) != len
)
2590 if (len
< RX_COPY_THRESHOLD
) {
2591 skb
= dev_alloc_skb(len
+ 2);
2595 skb_reserve(skb
, 2);
2596 pci_dma_sync_single_for_cpu(skge
->hw
->pdev
,
2597 pci_unmap_addr(e
, mapaddr
),
2598 len
, PCI_DMA_FROMDEVICE
);
2599 memcpy(skb
->data
, e
->skb
->data
, len
);
2600 pci_dma_sync_single_for_device(skge
->hw
->pdev
,
2601 pci_unmap_addr(e
, mapaddr
),
2602 len
, PCI_DMA_FROMDEVICE
);
2603 skge_rx_reuse(e
, skge
->rx_buf_size
);
2605 struct sk_buff
*nskb
;
2606 nskb
= dev_alloc_skb(skge
->rx_buf_size
+ NET_IP_ALIGN
);
2610 pci_unmap_single(skge
->hw
->pdev
,
2611 pci_unmap_addr(e
, mapaddr
),
2612 pci_unmap_len(e
, maplen
),
2613 PCI_DMA_FROMDEVICE
);
2615 prefetch(skb
->data
);
2616 skge_rx_setup(skge
, e
, nskb
, skge
->rx_buf_size
);
2620 skb
->dev
= skge
->netdev
;
2621 if (skge
->rx_csum
) {
2623 skb
->ip_summed
= CHECKSUM_HW
;
2626 skb
->protocol
= eth_type_trans(skb
, skge
->netdev
);
2631 if (netif_msg_rx_err(skge
))
2632 printk(KERN_DEBUG PFX
"%s: rx err, slot %td control 0x%x status 0x%x\n",
2633 skge
->netdev
->name
, e
- skge
->rx_ring
.start
,
2636 if (skge
->hw
->chip_id
== CHIP_ID_GENESIS
) {
2637 if (status
& (XMR_FS_RUNT
|XMR_FS_LNG_ERR
))
2638 skge
->net_stats
.rx_length_errors
++;
2639 if (status
& XMR_FS_FRA_ERR
)
2640 skge
->net_stats
.rx_frame_errors
++;
2641 if (status
& XMR_FS_FCS_ERR
)
2642 skge
->net_stats
.rx_crc_errors
++;
2644 if (status
& (GMR_FS_LONG_ERR
|GMR_FS_UN_SIZE
))
2645 skge
->net_stats
.rx_length_errors
++;
2646 if (status
& GMR_FS_FRAGMENT
)
2647 skge
->net_stats
.rx_frame_errors
++;
2648 if (status
& GMR_FS_CRC_ERR
)
2649 skge
->net_stats
.rx_crc_errors
++;
2653 skge_rx_reuse(e
, skge
->rx_buf_size
);
2657 static void skge_tx_done(struct skge_port
*skge
)
2659 struct skge_ring
*ring
= &skge
->tx_ring
;
2660 struct skge_element
*e
;
2662 spin_lock(&skge
->tx_lock
);
2663 for (e
= ring
->to_clean
; prefetch(e
->next
), e
!= ring
->to_use
; e
= e
->next
) {
2664 struct skge_tx_desc
*td
= e
->desc
;
2668 control
= td
->control
;
2669 if (control
& BMU_OWN
)
2672 if (unlikely(netif_msg_tx_done(skge
)))
2673 printk(KERN_DEBUG PFX
"%s: tx done slot %td status 0x%x\n",
2674 skge
->netdev
->name
, e
- ring
->start
, td
->status
);
2676 skge_tx_free(skge
->hw
, e
);
2681 skge_write8(skge
->hw
, Q_ADDR(txqaddr
[skge
->port
], Q_CSR
), CSR_IRQ_CL_F
);
2683 if (skge
->tx_avail
> MAX_SKB_FRAGS
+ 1)
2684 netif_wake_queue(skge
->netdev
);
2686 spin_unlock(&skge
->tx_lock
);
2689 static int skge_poll(struct net_device
*dev
, int *budget
)
2691 struct skge_port
*skge
= netdev_priv(dev
);
2692 struct skge_hw
*hw
= skge
->hw
;
2693 struct skge_ring
*ring
= &skge
->rx_ring
;
2694 struct skge_element
*e
;
2695 int to_do
= min(dev
->quota
, *budget
);
2700 for (e
= ring
->to_clean
; prefetch(e
->next
), work_done
< to_do
; e
= e
->next
) {
2701 struct skge_rx_desc
*rd
= e
->desc
;
2702 struct sk_buff
*skb
;
2706 control
= rd
->control
;
2707 if (control
& BMU_OWN
)
2710 skb
= skge_rx_get(skge
, e
, control
, rd
->status
,
2711 le16_to_cpu(rd
->csum2
));
2713 dev
->last_rx
= jiffies
;
2714 netif_receive_skb(skb
);
2718 skge_rx_reuse(e
, skge
->rx_buf_size
);
2722 /* restart receiver */
2724 skge_write8(hw
, Q_ADDR(rxqaddr
[skge
->port
], Q_CSR
), CSR_START
);
2726 *budget
-= work_done
;
2727 dev
->quota
-= work_done
;
2729 if (work_done
>= to_do
)
2730 return 1; /* not done */
2732 netif_rx_complete(dev
);
2733 hw
->intr_mask
|= skge
->port
== 0 ? (IS_R1_F
|IS_XA1_F
) : (IS_R2_F
|IS_XA2_F
);
2734 skge_write32(hw
, B0_IMSK
, hw
->intr_mask
);
2739 /* Parity errors seem to happen when Genesis is connected to a switch
2740 * with no other ports present. Heartbeat error??
2742 static void skge_mac_parity(struct skge_hw
*hw
, int port
)
2744 struct net_device
*dev
= hw
->dev
[port
];
2747 struct skge_port
*skge
= netdev_priv(dev
);
2748 ++skge
->net_stats
.tx_heartbeat_errors
;
2751 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2752 skge_write16(hw
, SK_REG(port
, TX_MFF_CTRL1
),
2755 /* HW-Bug #8: cleared by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE */
2756 skge_write8(hw
, SK_REG(port
, TX_GMF_CTRL_T
),
2757 (hw
->chip_id
== CHIP_ID_YUKON
&& hw
->chip_rev
== 0)
2758 ? GMF_CLI_TX_FC
: GMF_CLI_TX_PE
);
2761 static void skge_pci_clear(struct skge_hw
*hw
)
2765 pci_read_config_word(hw
->pdev
, PCI_STATUS
, &status
);
2766 skge_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_ON
);
2767 pci_write_config_word(hw
->pdev
, PCI_STATUS
,
2768 status
| PCI_STATUS_ERROR_BITS
);
2769 skge_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_OFF
);
2772 static void skge_mac_intr(struct skge_hw
*hw
, int port
)
2774 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2775 genesis_mac_intr(hw
, port
);
2777 yukon_mac_intr(hw
, port
);
2780 /* Handle device specific framing and timeout interrupts */
2781 static void skge_error_irq(struct skge_hw
*hw
)
2783 u32 hwstatus
= skge_read32(hw
, B0_HWE_ISRC
);
2785 if (hw
->chip_id
== CHIP_ID_GENESIS
) {
2786 /* clear xmac errors */
2787 if (hwstatus
& (IS_NO_STAT_M1
|IS_NO_TIST_M1
))
2788 skge_write16(hw
, RX_MFF_CTRL1
, MFF_CLR_INSTAT
);
2789 if (hwstatus
& (IS_NO_STAT_M2
|IS_NO_TIST_M2
))
2790 skge_write16(hw
, RX_MFF_CTRL2
, MFF_CLR_INSTAT
);
2792 /* Timestamp (unused) overflow */
2793 if (hwstatus
& IS_IRQ_TIST_OV
)
2794 skge_write8(hw
, GMAC_TI_ST_CTRL
, GMT_ST_CLR_IRQ
);
2797 if (hwstatus
& IS_RAM_RD_PAR
) {
2798 printk(KERN_ERR PFX
"Ram read data parity error\n");
2799 skge_write16(hw
, B3_RI_CTRL
, RI_CLR_RD_PERR
);
2802 if (hwstatus
& IS_RAM_WR_PAR
) {
2803 printk(KERN_ERR PFX
"Ram write data parity error\n");
2804 skge_write16(hw
, B3_RI_CTRL
, RI_CLR_WR_PERR
);
2807 if (hwstatus
& IS_M1_PAR_ERR
)
2808 skge_mac_parity(hw
, 0);
2810 if (hwstatus
& IS_M2_PAR_ERR
)
2811 skge_mac_parity(hw
, 1);
2813 if (hwstatus
& IS_R1_PAR_ERR
)
2814 skge_write32(hw
, B0_R1_CSR
, CSR_IRQ_CL_P
);
2816 if (hwstatus
& IS_R2_PAR_ERR
)
2817 skge_write32(hw
, B0_R2_CSR
, CSR_IRQ_CL_P
);
2819 if (hwstatus
& (IS_IRQ_MST_ERR
|IS_IRQ_STAT
)) {
2820 printk(KERN_ERR PFX
"hardware error detected (status 0x%x)\n",
2825 /* if error still set then just ignore it */
2826 hwstatus
= skge_read32(hw
, B0_HWE_ISRC
);
2827 if (hwstatus
& IS_IRQ_STAT
) {
2828 pr_debug("IRQ status %x: still set ignoring hardware errors\n",
2830 hw
->intr_mask
&= ~IS_HW_ERR
;
2836 * Interrupt from PHY are handled in tasklet (soft irq)
2837 * because accessing phy registers requires spin wait which might
2838 * cause excess interrupt latency.
2840 static void skge_extirq(unsigned long data
)
2842 struct skge_hw
*hw
= (struct skge_hw
*) data
;
2845 spin_lock(&hw
->phy_lock
);
2846 for (port
= 0; port
< hw
->ports
; port
++) {
2847 struct net_device
*dev
= hw
->dev
[port
];
2848 struct skge_port
*skge
= netdev_priv(dev
);
2850 if (netif_running(dev
)) {
2851 if (hw
->chip_id
!= CHIP_ID_GENESIS
)
2852 yukon_phy_intr(skge
);
2854 bcom_phy_intr(skge
);
2857 spin_unlock(&hw
->phy_lock
);
2859 hw
->intr_mask
|= IS_EXT_REG
;
2860 skge_write32(hw
, B0_IMSK
, hw
->intr_mask
);
2863 static irqreturn_t
skge_intr(int irq
, void *dev_id
, struct pt_regs
*regs
)
2865 struct skge_hw
*hw
= dev_id
;
2868 /* Reading this register masks IRQ */
2869 status
= skge_read32(hw
, B0_SP_ISRC
);
2873 if (status
& IS_EXT_REG
) {
2874 hw
->intr_mask
&= ~IS_EXT_REG
;
2875 tasklet_schedule(&hw
->ext_tasklet
);
2878 if (status
& (IS_R1_F
|IS_XA1_F
)) {
2879 skge_write8(hw
, Q_ADDR(Q_R1
, Q_CSR
), CSR_IRQ_CL_F
);
2880 hw
->intr_mask
&= ~(IS_R1_F
|IS_XA1_F
);
2881 netif_rx_schedule(hw
->dev
[0]);
2884 if (status
& (IS_R2_F
|IS_XA2_F
)) {
2885 skge_write8(hw
, Q_ADDR(Q_R2
, Q_CSR
), CSR_IRQ_CL_F
);
2886 hw
->intr_mask
&= ~(IS_R2_F
|IS_XA2_F
);
2887 netif_rx_schedule(hw
->dev
[1]);
2890 if (likely((status
& hw
->intr_mask
) == 0))
2893 if (status
& IS_PA_TO_RX1
) {
2894 struct skge_port
*skge
= netdev_priv(hw
->dev
[0]);
2895 ++skge
->net_stats
.rx_over_errors
;
2896 skge_write16(hw
, B3_PA_CTRL
, PA_CLR_TO_RX1
);
2899 if (status
& IS_PA_TO_RX2
) {
2900 struct skge_port
*skge
= netdev_priv(hw
->dev
[1]);
2901 ++skge
->net_stats
.rx_over_errors
;
2902 skge_write16(hw
, B3_PA_CTRL
, PA_CLR_TO_RX2
);
2905 if (status
& IS_PA_TO_TX1
)
2906 skge_write16(hw
, B3_PA_CTRL
, PA_CLR_TO_TX1
);
2908 if (status
& IS_PA_TO_TX2
)
2909 skge_write16(hw
, B3_PA_CTRL
, PA_CLR_TO_TX2
);
2911 if (status
& IS_MAC1
)
2912 skge_mac_intr(hw
, 0);
2914 if (status
& IS_MAC2
)
2915 skge_mac_intr(hw
, 1);
2917 if (status
& IS_HW_ERR
)
2920 skge_write32(hw
, B0_IMSK
, hw
->intr_mask
);
2925 #ifdef CONFIG_NET_POLL_CONTROLLER
2926 static void skge_netpoll(struct net_device
*dev
)
2928 struct skge_port
*skge
= netdev_priv(dev
);
2930 disable_irq(dev
->irq
);
2931 skge_intr(dev
->irq
, skge
->hw
, NULL
);
2932 enable_irq(dev
->irq
);
2936 static int skge_set_mac_address(struct net_device
*dev
, void *p
)
2938 struct skge_port
*skge
= netdev_priv(dev
);
2939 struct skge_hw
*hw
= skge
->hw
;
2940 unsigned port
= skge
->port
;
2941 const struct sockaddr
*addr
= p
;
2943 if (!is_valid_ether_addr(addr
->sa_data
))
2944 return -EADDRNOTAVAIL
;
2946 spin_lock_bh(&hw
->phy_lock
);
2947 memcpy(dev
->dev_addr
, addr
->sa_data
, ETH_ALEN
);
2948 memcpy_toio(hw
->regs
+ B2_MAC_1
+ port
*8,
2949 dev
->dev_addr
, ETH_ALEN
);
2950 memcpy_toio(hw
->regs
+ B2_MAC_2
+ port
*8,
2951 dev
->dev_addr
, ETH_ALEN
);
2953 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2954 xm_outaddr(hw
, port
, XM_SA
, dev
->dev_addr
);
2956 gma_set_addr(hw
, port
, GM_SRC_ADDR_1L
, dev
->dev_addr
);
2957 gma_set_addr(hw
, port
, GM_SRC_ADDR_2L
, dev
->dev_addr
);
2959 spin_unlock_bh(&hw
->phy_lock
);
2964 static const struct {
2968 { CHIP_ID_GENESIS
, "Genesis" },
2969 { CHIP_ID_YUKON
, "Yukon" },
2970 { CHIP_ID_YUKON_LITE
, "Yukon-Lite"},
2971 { CHIP_ID_YUKON_LP
, "Yukon-LP"},
2974 static const char *skge_board_name(const struct skge_hw
*hw
)
2977 static char buf
[16];
2979 for (i
= 0; i
< ARRAY_SIZE(skge_chips
); i
++)
2980 if (skge_chips
[i
].id
== hw
->chip_id
)
2981 return skge_chips
[i
].name
;
2983 snprintf(buf
, sizeof buf
, "chipid 0x%x", hw
->chip_id
);
2989 * Setup the board data structure, but don't bring up
2992 static int skge_reset(struct skge_hw
*hw
)
2996 u8 t8
, mac_cfg
, pmd_type
, phy_type
;
2999 ctst
= skge_read16(hw
, B0_CTST
);
3002 skge_write8(hw
, B0_CTST
, CS_RST_SET
);
3003 skge_write8(hw
, B0_CTST
, CS_RST_CLR
);
3005 /* clear PCI errors, if any */
3008 skge_write8(hw
, B0_CTST
, CS_MRST_CLR
);
3010 /* restore CLK_RUN bits (for Yukon-Lite) */
3011 skge_write16(hw
, B0_CTST
,
3012 ctst
& (CS_CLK_RUN_HOT
|CS_CLK_RUN_RST
|CS_CLK_RUN_ENA
));
3014 hw
->chip_id
= skge_read8(hw
, B2_CHIP_ID
);
3015 phy_type
= skge_read8(hw
, B2_E_1
) & 0xf;
3016 pmd_type
= skge_read8(hw
, B2_PMD_TYP
);
3017 hw
->copper
= (pmd_type
== 'T' || pmd_type
== '1');
3019 switch (hw
->chip_id
) {
3020 case CHIP_ID_GENESIS
:
3023 hw
->phy_addr
= PHY_ADDR_BCOM
;
3026 printk(KERN_ERR PFX
"%s: unsupported phy type 0x%x\n",
3027 pci_name(hw
->pdev
), phy_type
);
3033 case CHIP_ID_YUKON_LITE
:
3034 case CHIP_ID_YUKON_LP
:
3035 if (phy_type
< SK_PHY_MARV_COPPER
&& pmd_type
!= 'S')
3038 hw
->phy_addr
= PHY_ADDR_MARV
;
3042 printk(KERN_ERR PFX
"%s: unsupported chip type 0x%x\n",
3043 pci_name(hw
->pdev
), hw
->chip_id
);
3047 mac_cfg
= skge_read8(hw
, B2_MAC_CFG
);
3048 hw
->ports
= (mac_cfg
& CFG_SNG_MAC
) ? 1 : 2;
3049 hw
->chip_rev
= (mac_cfg
& CFG_CHIP_R_MSK
) >> 4;
3051 /* read the adapters RAM size */
3052 t8
= skge_read8(hw
, B2_E_0
);
3053 if (hw
->chip_id
== CHIP_ID_GENESIS
) {
3055 /* special case: 4 x 64k x 36, offset = 0x80000 */
3056 hw
->ram_size
= 0x100000;
3057 hw
->ram_offset
= 0x80000;
3059 hw
->ram_size
= t8
* 512;
3062 hw
->ram_size
= 0x20000;
3064 hw
->ram_size
= t8
* 4096;
3066 hw
->intr_mask
= IS_HW_ERR
| IS_EXT_REG
| IS_PORT_1
;
3068 hw
->intr_mask
|= IS_PORT_2
;
3070 if (hw
->chip_id
== CHIP_ID_GENESIS
)
3073 /* switch power to VCC (WA for VAUX problem) */
3074 skge_write8(hw
, B0_POWER_CTRL
,
3075 PC_VAUX_ENA
| PC_VCC_ENA
| PC_VAUX_OFF
| PC_VCC_ON
);
3077 /* avoid boards with stuck Hardware error bits */
3078 if ((skge_read32(hw
, B0_ISRC
) & IS_HW_ERR
) &&
3079 (skge_read32(hw
, B0_HWE_ISRC
) & IS_IRQ_SENSOR
)) {
3080 printk(KERN_WARNING PFX
"stuck hardware sensor bit\n");
3081 hw
->intr_mask
&= ~IS_HW_ERR
;
3084 /* Clear PHY COMA */
3085 skge_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_ON
);
3086 pci_read_config_dword(hw
->pdev
, PCI_DEV_REG1
, ®
);
3087 reg
&= ~PCI_PHY_COMA
;
3088 pci_write_config_dword(hw
->pdev
, PCI_DEV_REG1
, reg
);
3089 skge_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_OFF
);
3092 for (i
= 0; i
< hw
->ports
; i
++) {
3093 skge_write16(hw
, SK_REG(i
, GMAC_LINK_CTRL
), GMLC_RST_SET
);
3094 skge_write16(hw
, SK_REG(i
, GMAC_LINK_CTRL
), GMLC_RST_CLR
);
3098 /* turn off hardware timer (unused) */
3099 skge_write8(hw
, B2_TI_CTRL
, TIM_STOP
);
3100 skge_write8(hw
, B2_TI_CTRL
, TIM_CLR_IRQ
);
3101 skge_write8(hw
, B0_LED
, LED_STAT_ON
);
3103 /* enable the Tx Arbiters */
3104 for (i
= 0; i
< hw
->ports
; i
++)
3105 skge_write8(hw
, SK_REG(i
, TXA_CTRL
), TXA_ENA_ARB
);
3107 /* Initialize ram interface */
3108 skge_write16(hw
, B3_RI_CTRL
, RI_RST_CLR
);
3110 skge_write8(hw
, B3_RI_WTO_R1
, SK_RI_TO_53
);
3111 skge_write8(hw
, B3_RI_WTO_XA1
, SK_RI_TO_53
);
3112 skge_write8(hw
, B3_RI_WTO_XS1
, SK_RI_TO_53
);
3113 skge_write8(hw
, B3_RI_RTO_R1
, SK_RI_TO_53
);
3114 skge_write8(hw
, B3_RI_RTO_XA1
, SK_RI_TO_53
);
3115 skge_write8(hw
, B3_RI_RTO_XS1
, SK_RI_TO_53
);
3116 skge_write8(hw
, B3_RI_WTO_R2
, SK_RI_TO_53
);
3117 skge_write8(hw
, B3_RI_WTO_XA2
, SK_RI_TO_53
);
3118 skge_write8(hw
, B3_RI_WTO_XS2
, SK_RI_TO_53
);
3119 skge_write8(hw
, B3_RI_RTO_R2
, SK_RI_TO_53
);
3120 skge_write8(hw
, B3_RI_RTO_XA2
, SK_RI_TO_53
);
3121 skge_write8(hw
, B3_RI_RTO_XS2
, SK_RI_TO_53
);
3123 skge_write32(hw
, B0_HWE_IMSK
, IS_ERR_MSK
);
3125 /* Set interrupt moderation for Transmit only
3126 * Receive interrupts avoided by NAPI
3128 skge_write32(hw
, B2_IRQM_MSK
, IS_XA1_F
|IS_XA2_F
);
3129 skge_write32(hw
, B2_IRQM_INI
, skge_usecs2clk(hw
, 100));
3130 skge_write32(hw
, B2_IRQM_CTRL
, TIM_START
);
3132 skge_write32(hw
, B0_IMSK
, hw
->intr_mask
);
3134 spin_lock_bh(&hw
->phy_lock
);
3135 for (i
= 0; i
< hw
->ports
; i
++) {
3136 if (hw
->chip_id
== CHIP_ID_GENESIS
)
3137 genesis_reset(hw
, i
);
3141 spin_unlock_bh(&hw
->phy_lock
);
3146 /* Initialize network device */
3147 static struct net_device
*skge_devinit(struct skge_hw
*hw
, int port
,
3150 struct skge_port
*skge
;
3151 struct net_device
*dev
= alloc_etherdev(sizeof(*skge
));
3154 printk(KERN_ERR
"skge etherdev alloc failed");
3158 SET_MODULE_OWNER(dev
);
3159 SET_NETDEV_DEV(dev
, &hw
->pdev
->dev
);
3160 dev
->open
= skge_up
;
3161 dev
->stop
= skge_down
;
3162 dev
->do_ioctl
= skge_ioctl
;
3163 dev
->hard_start_xmit
= skge_xmit_frame
;
3164 dev
->get_stats
= skge_get_stats
;
3165 if (hw
->chip_id
== CHIP_ID_GENESIS
)
3166 dev
->set_multicast_list
= genesis_set_multicast
;
3168 dev
->set_multicast_list
= yukon_set_multicast
;
3170 dev
->set_mac_address
= skge_set_mac_address
;
3171 dev
->change_mtu
= skge_change_mtu
;
3172 SET_ETHTOOL_OPS(dev
, &skge_ethtool_ops
);
3173 dev
->tx_timeout
= skge_tx_timeout
;
3174 dev
->watchdog_timeo
= TX_WATCHDOG
;
3175 dev
->poll
= skge_poll
;
3176 dev
->weight
= NAPI_WEIGHT
;
3177 #ifdef CONFIG_NET_POLL_CONTROLLER
3178 dev
->poll_controller
= skge_netpoll
;
3180 dev
->irq
= hw
->pdev
->irq
;
3181 dev
->features
= NETIF_F_LLTX
;
3183 dev
->features
|= NETIF_F_HIGHDMA
;
3185 skge
= netdev_priv(dev
);
3188 skge
->msg_enable
= netif_msg_init(debug
, default_msg
);
3189 skge
->tx_ring
.count
= DEFAULT_TX_RING_SIZE
;
3190 skge
->rx_ring
.count
= DEFAULT_RX_RING_SIZE
;
3192 /* Auto speed and flow control */
3193 skge
->autoneg
= AUTONEG_ENABLE
;
3194 skge
->flow_control
= FLOW_MODE_SYMMETRIC
;
3197 skge
->advertising
= skge_supported_modes(hw
);
3199 hw
->dev
[port
] = dev
;
3203 spin_lock_init(&skge
->tx_lock
);
3205 if (hw
->chip_id
!= CHIP_ID_GENESIS
) {
3206 dev
->features
|= NETIF_F_IP_CSUM
| NETIF_F_SG
;
3210 /* read the mac address */
3211 memcpy_fromio(dev
->dev_addr
, hw
->regs
+ B2_MAC_1
+ port
*8, ETH_ALEN
);
3212 memcpy(dev
->perm_addr
, dev
->dev_addr
, dev
->addr_len
);
3214 /* device is off until link detection */
3215 netif_carrier_off(dev
);
3216 netif_stop_queue(dev
);
3221 static void __devinit
skge_show_addr(struct net_device
*dev
)
3223 const struct skge_port
*skge
= netdev_priv(dev
);
3225 if (netif_msg_probe(skge
))
3226 printk(KERN_INFO PFX
"%s: addr %02x:%02x:%02x:%02x:%02x:%02x\n",
3228 dev
->dev_addr
[0], dev
->dev_addr
[1], dev
->dev_addr
[2],
3229 dev
->dev_addr
[3], dev
->dev_addr
[4], dev
->dev_addr
[5]);
3232 static int __devinit
skge_probe(struct pci_dev
*pdev
,
3233 const struct pci_device_id
*ent
)
3235 struct net_device
*dev
, *dev1
;
3237 int err
, using_dac
= 0;
3239 if ((err
= pci_enable_device(pdev
))) {
3240 printk(KERN_ERR PFX
"%s cannot enable PCI device\n",
3245 if ((err
= pci_request_regions(pdev
, DRV_NAME
))) {
3246 printk(KERN_ERR PFX
"%s cannot obtain PCI resources\n",
3248 goto err_out_disable_pdev
;
3251 pci_set_master(pdev
);
3253 if (!pci_set_dma_mask(pdev
, DMA_64BIT_MASK
)) {
3255 err
= pci_set_consistent_dma_mask(pdev
, DMA_64BIT_MASK
);
3256 } else if (!(err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
))) {
3258 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
3262 printk(KERN_ERR PFX
"%s no usable DMA configuration\n",
3264 goto err_out_free_regions
;
3268 /* byte swap descriptors in hardware */
3272 pci_read_config_dword(pdev
, PCI_DEV_REG2
, ®
);
3273 reg
|= PCI_REV_DESC
;
3274 pci_write_config_dword(pdev
, PCI_DEV_REG2
, reg
);
3279 hw
= kzalloc(sizeof(*hw
), GFP_KERNEL
);
3281 printk(KERN_ERR PFX
"%s: cannot allocate hardware struct\n",
3283 goto err_out_free_regions
;
3287 spin_lock_init(&hw
->phy_lock
);
3288 tasklet_init(&hw
->ext_tasklet
, skge_extirq
, (unsigned long) hw
);
3290 hw
->regs
= ioremap_nocache(pci_resource_start(pdev
, 0), 0x4000);
3292 printk(KERN_ERR PFX
"%s: cannot map device registers\n",
3294 goto err_out_free_hw
;
3297 if ((err
= request_irq(pdev
->irq
, skge_intr
, SA_SHIRQ
, DRV_NAME
, hw
))) {
3298 printk(KERN_ERR PFX
"%s: cannot assign irq %d\n",
3299 pci_name(pdev
), pdev
->irq
);
3300 goto err_out_iounmap
;
3302 pci_set_drvdata(pdev
, hw
);
3304 err
= skge_reset(hw
);
3306 goto err_out_free_irq
;
3308 printk(KERN_INFO PFX DRV_VERSION
" addr 0x%lx irq %d chip %s rev %d\n",
3309 pci_resource_start(pdev
, 0), pdev
->irq
,
3310 skge_board_name(hw
), hw
->chip_rev
);
3312 if ((dev
= skge_devinit(hw
, 0, using_dac
)) == NULL
)
3313 goto err_out_led_off
;
3315 if ((err
= register_netdev(dev
))) {
3316 printk(KERN_ERR PFX
"%s: cannot register net device\n",
3318 goto err_out_free_netdev
;
3321 skge_show_addr(dev
);
3323 if (hw
->ports
> 1 && (dev1
= skge_devinit(hw
, 1, using_dac
))) {
3324 if (register_netdev(dev1
) == 0)
3325 skge_show_addr(dev1
);
3327 /* Failure to register second port need not be fatal */
3328 printk(KERN_WARNING PFX
"register of second port failed\n");
3336 err_out_free_netdev
:
3339 skge_write16(hw
, B0_LED
, LED_STAT_OFF
);
3341 free_irq(pdev
->irq
, hw
);
3346 err_out_free_regions
:
3347 pci_release_regions(pdev
);
3348 err_out_disable_pdev
:
3349 pci_disable_device(pdev
);
3350 pci_set_drvdata(pdev
, NULL
);
3355 static void __devexit
skge_remove(struct pci_dev
*pdev
)
3357 struct skge_hw
*hw
= pci_get_drvdata(pdev
);
3358 struct net_device
*dev0
, *dev1
;
3363 if ((dev1
= hw
->dev
[1]))
3364 unregister_netdev(dev1
);
3366 unregister_netdev(dev0
);
3368 skge_write32(hw
, B0_IMSK
, 0);
3369 skge_write16(hw
, B0_LED
, LED_STAT_OFF
);
3371 skge_write8(hw
, B0_CTST
, CS_RST_SET
);
3373 tasklet_kill(&hw
->ext_tasklet
);
3375 free_irq(pdev
->irq
, hw
);
3376 pci_release_regions(pdev
);
3377 pci_disable_device(pdev
);
3384 pci_set_drvdata(pdev
, NULL
);
3388 static int skge_suspend(struct pci_dev
*pdev
, pm_message_t state
)
3390 struct skge_hw
*hw
= pci_get_drvdata(pdev
);
3393 for (i
= 0; i
< 2; i
++) {
3394 struct net_device
*dev
= hw
->dev
[i
];
3397 struct skge_port
*skge
= netdev_priv(dev
);
3398 if (netif_running(dev
)) {
3399 netif_carrier_off(dev
);
3401 netif_stop_queue(dev
);
3405 netif_device_detach(dev
);
3410 pci_save_state(pdev
);
3411 pci_enable_wake(pdev
, pci_choose_state(pdev
, state
), wol
);
3412 pci_disable_device(pdev
);
3413 pci_set_power_state(pdev
, pci_choose_state(pdev
, state
));
3418 static int skge_resume(struct pci_dev
*pdev
)
3420 struct skge_hw
*hw
= pci_get_drvdata(pdev
);
3423 pci_set_power_state(pdev
, PCI_D0
);
3424 pci_restore_state(pdev
);
3425 pci_enable_wake(pdev
, PCI_D0
, 0);
3429 for (i
= 0; i
< 2; i
++) {
3430 struct net_device
*dev
= hw
->dev
[i
];
3432 netif_device_attach(dev
);
3433 if (netif_running(dev
) && skge_up(dev
))
3441 static struct pci_driver skge_driver
= {
3443 .id_table
= skge_id_table
,
3444 .probe
= skge_probe
,
3445 .remove
= __devexit_p(skge_remove
),
3447 .suspend
= skge_suspend
,
3448 .resume
= skge_resume
,
3452 static int __init
skge_init_module(void)
3454 return pci_module_init(&skge_driver
);
3457 static void __exit
skge_cleanup_module(void)
3459 pci_unregister_driver(&skge_driver
);
3462 module_init(skge_init_module
);
3463 module_exit(skge_cleanup_module
);