2 * New driver for Marvell Yukon chipset and SysKonnect Gigabit
3 * Ethernet adapters. Based on earlier sk98lin, e100 and
4 * FreeBSD if_sk drivers.
6 * This driver intentionally does not support all the features
7 * of the original driver such as link fail-over and link management because
8 * those should be done at higher levels.
10 * Copyright (C) 2004, 2005 Stephen Hemminger <shemminger@osdl.org>
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 #include <linux/config.h>
28 #include <linux/kernel.h>
29 #include <linux/module.h>
30 #include <linux/moduleparam.h>
31 #include <linux/netdevice.h>
32 #include <linux/etherdevice.h>
33 #include <linux/ethtool.h>
34 #include <linux/pci.h>
35 #include <linux/if_vlan.h>
37 #include <linux/delay.h>
38 #include <linux/crc32.h>
39 #include <linux/dma-mapping.h>
44 #define DRV_NAME "skge"
45 #define DRV_VERSION "0.7"
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 RX_COPY_THRESHOLD 128
53 #define RX_BUF_SIZE 1536
54 #define PHY_RETRIES 1000
55 #define ETH_JUMBO_MTU 9000
56 #define TX_WATCHDOG (5 * HZ)
57 #define NAPI_WEIGHT 64
58 #define BLINK_HZ (HZ/4)
60 MODULE_DESCRIPTION("SysKonnect Gigabit Ethernet driver");
61 MODULE_AUTHOR("Stephen Hemminger <shemminger@osdl.org>");
62 MODULE_LICENSE("GPL");
63 MODULE_VERSION(DRV_VERSION
);
65 static const u32 default_msg
66 = NETIF_MSG_DRV
| NETIF_MSG_PROBE
| NETIF_MSG_LINK
67 | NETIF_MSG_IFUP
| NETIF_MSG_IFDOWN
;
69 static int debug
= -1; /* defaults above */
70 module_param(debug
, int, 0);
71 MODULE_PARM_DESC(debug
, "Debug level (0=none,...,16=all)");
73 static const struct pci_device_id skge_id_table
[] = {
74 { PCI_DEVICE(PCI_VENDOR_ID_3COM
, PCI_DEVICE_ID_3COM_3C940
) },
75 { PCI_DEVICE(PCI_VENDOR_ID_3COM
, PCI_DEVICE_ID_3COM_3C940B
) },
76 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT
, PCI_DEVICE_ID_SYSKONNECT_GE
) },
77 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT
, PCI_DEVICE_ID_SYSKONNECT_YU
) },
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
);
99 static void genesis_link_up(struct skge_port
*skge
);
101 /* Avoid conditionals by using array */
102 static const int txqaddr
[] = { Q_XA1
, Q_XA2
};
103 static const int rxqaddr
[] = { Q_R1
, Q_R2
};
104 static const u32 rxirqmask
[] = { IS_R1_F
, IS_R2_F
};
105 static const u32 txirqmask
[] = { IS_XA1_F
, IS_XA2_F
};
106 static const u32 portirqmask
[] = { IS_PORT_1
, IS_PORT_2
};
108 /* Don't need to look at whole 16K.
109 * last interesting register is descriptor poll timer.
111 #define SKGE_REGS_LEN (29*128)
113 static int skge_get_regs_len(struct net_device
*dev
)
115 return SKGE_REGS_LEN
;
119 * Returns copy of control register region
120 * I/O region is divided into banks and certain regions are unreadable
122 static void skge_get_regs(struct net_device
*dev
, struct ethtool_regs
*regs
,
125 const struct skge_port
*skge
= netdev_priv(dev
);
127 const void __iomem
*io
= skge
->hw
->regs
;
128 static const unsigned long bankmap
129 = (1<<0) | (1<<2) | (1<<8) | (1<<9)
130 | (1<<12) | (1<<13) | (1<<14) | (1<<15) | (1<<16)
131 | (1<<17) | (1<<20) | (1<<21) | (1<<22) | (1<<23)
132 | (1<<24) | (1<<25) | (1<<26) | (1<<27) | (1<<28);
135 for (offs
= 0; offs
< regs
->len
; offs
+= 128) {
136 u32 len
= min_t(u32
, 128, regs
->len
- offs
);
138 if (bankmap
& (1<<(offs
/128)))
139 memcpy_fromio(p
+ offs
, io
+ offs
, len
);
141 memset(p
+ offs
, 0, len
);
145 /* Wake on Lan only supported on Yukon chps with rev 1 or above */
146 static int wol_supported(const struct skge_hw
*hw
)
148 return !((hw
->chip_id
== CHIP_ID_GENESIS
||
149 (hw
->chip_id
== CHIP_ID_YUKON
&& hw
->chip_rev
== 0)));
152 static void skge_get_wol(struct net_device
*dev
, struct ethtool_wolinfo
*wol
)
154 struct skge_port
*skge
= netdev_priv(dev
);
156 wol
->supported
= wol_supported(skge
->hw
) ? WAKE_MAGIC
: 0;
157 wol
->wolopts
= skge
->wol
? WAKE_MAGIC
: 0;
160 static int skge_set_wol(struct net_device
*dev
, struct ethtool_wolinfo
*wol
)
162 struct skge_port
*skge
= netdev_priv(dev
);
163 struct skge_hw
*hw
= skge
->hw
;
165 if (wol
->wolopts
!= WAKE_MAGIC
&& wol
->wolopts
!= 0)
168 if (wol
->wolopts
== WAKE_MAGIC
&& !wol_supported(hw
))
171 skge
->wol
= wol
->wolopts
== WAKE_MAGIC
;
174 memcpy_toio(hw
->regs
+ WOL_MAC_ADDR
, dev
->dev_addr
, ETH_ALEN
);
176 skge_write16(hw
, WOL_CTRL_STAT
,
177 WOL_CTL_ENA_PME_ON_MAGIC_PKT
|
178 WOL_CTL_ENA_MAGIC_PKT_UNIT
);
180 skge_write16(hw
, WOL_CTRL_STAT
, WOL_CTL_DEFAULT
);
185 /* Determine supported/adverised modes based on hardware.
186 * Note: ethtoool ADVERTISED_xxx == SUPPORTED_xxx
188 static u32
skge_supported_modes(const struct skge_hw
*hw
)
193 supported
= SUPPORTED_10baseT_Half
194 | SUPPORTED_10baseT_Full
195 | SUPPORTED_100baseT_Half
196 | SUPPORTED_100baseT_Full
197 | SUPPORTED_1000baseT_Half
198 | SUPPORTED_1000baseT_Full
199 | SUPPORTED_Autoneg
| SUPPORTED_TP
;
201 if (hw
->chip_id
== CHIP_ID_GENESIS
)
202 supported
&= ~(SUPPORTED_10baseT_Half
203 | SUPPORTED_10baseT_Full
204 | SUPPORTED_100baseT_Half
205 | SUPPORTED_100baseT_Full
);
207 else if (hw
->chip_id
== CHIP_ID_YUKON
)
208 supported
&= ~SUPPORTED_1000baseT_Half
;
210 supported
= SUPPORTED_1000baseT_Full
| SUPPORTED_FIBRE
216 static int skge_get_settings(struct net_device
*dev
,
217 struct ethtool_cmd
*ecmd
)
219 struct skge_port
*skge
= netdev_priv(dev
);
220 struct skge_hw
*hw
= skge
->hw
;
222 ecmd
->transceiver
= XCVR_INTERNAL
;
223 ecmd
->supported
= skge_supported_modes(hw
);
226 ecmd
->port
= PORT_TP
;
227 ecmd
->phy_address
= hw
->phy_addr
;
229 ecmd
->port
= PORT_FIBRE
;
231 ecmd
->advertising
= skge
->advertising
;
232 ecmd
->autoneg
= skge
->autoneg
;
233 ecmd
->speed
= skge
->speed
;
234 ecmd
->duplex
= skge
->duplex
;
238 static int skge_set_settings(struct net_device
*dev
, struct ethtool_cmd
*ecmd
)
240 struct skge_port
*skge
= netdev_priv(dev
);
241 const struct skge_hw
*hw
= skge
->hw
;
242 u32 supported
= skge_supported_modes(hw
);
244 if (ecmd
->autoneg
== AUTONEG_ENABLE
) {
245 ecmd
->advertising
= supported
;
251 switch (ecmd
->speed
) {
253 if (ecmd
->duplex
== DUPLEX_FULL
)
254 setting
= SUPPORTED_1000baseT_Full
;
255 else if (ecmd
->duplex
== DUPLEX_HALF
)
256 setting
= SUPPORTED_1000baseT_Half
;
261 if (ecmd
->duplex
== DUPLEX_FULL
)
262 setting
= SUPPORTED_100baseT_Full
;
263 else if (ecmd
->duplex
== DUPLEX_HALF
)
264 setting
= SUPPORTED_100baseT_Half
;
270 if (ecmd
->duplex
== DUPLEX_FULL
)
271 setting
= SUPPORTED_10baseT_Full
;
272 else if (ecmd
->duplex
== DUPLEX_HALF
)
273 setting
= SUPPORTED_10baseT_Half
;
281 if ((setting
& supported
) == 0)
284 skge
->speed
= ecmd
->speed
;
285 skge
->duplex
= ecmd
->duplex
;
288 skge
->autoneg
= ecmd
->autoneg
;
289 skge
->advertising
= ecmd
->advertising
;
291 if (netif_running(dev
)) {
298 static void skge_get_drvinfo(struct net_device
*dev
,
299 struct ethtool_drvinfo
*info
)
301 struct skge_port
*skge
= netdev_priv(dev
);
303 strcpy(info
->driver
, DRV_NAME
);
304 strcpy(info
->version
, DRV_VERSION
);
305 strcpy(info
->fw_version
, "N/A");
306 strcpy(info
->bus_info
, pci_name(skge
->hw
->pdev
));
309 static const struct skge_stat
{
310 char name
[ETH_GSTRING_LEN
];
314 { "tx_bytes", XM_TXO_OK_HI
, GM_TXO_OK_HI
},
315 { "rx_bytes", XM_RXO_OK_HI
, GM_RXO_OK_HI
},
317 { "tx_broadcast", XM_TXF_BC_OK
, GM_TXF_BC_OK
},
318 { "rx_broadcast", XM_RXF_BC_OK
, GM_RXF_BC_OK
},
319 { "tx_multicast", XM_TXF_MC_OK
, GM_TXF_MC_OK
},
320 { "rx_multicast", XM_RXF_MC_OK
, GM_RXF_MC_OK
},
321 { "tx_unicast", XM_TXF_UC_OK
, GM_TXF_UC_OK
},
322 { "rx_unicast", XM_RXF_UC_OK
, GM_RXF_UC_OK
},
323 { "tx_mac_pause", XM_TXF_MPAUSE
, GM_TXF_MPAUSE
},
324 { "rx_mac_pause", XM_RXF_MPAUSE
, GM_RXF_MPAUSE
},
326 { "collisions", XM_TXF_SNG_COL
, GM_TXF_SNG_COL
},
327 { "multi_collisions", XM_TXF_MUL_COL
, GM_TXF_MUL_COL
},
328 { "aborted", XM_TXF_ABO_COL
, GM_TXF_ABO_COL
},
329 { "late_collision", XM_TXF_LAT_COL
, GM_TXF_LAT_COL
},
330 { "fifo_underrun", XM_TXE_FIFO_UR
, GM_TXE_FIFO_UR
},
331 { "fifo_overflow", XM_RXE_FIFO_OV
, GM_RXE_FIFO_OV
},
333 { "rx_toolong", XM_RXF_LNG_ERR
, GM_RXF_LNG_ERR
},
334 { "rx_jabber", XM_RXF_JAB_PKT
, GM_RXF_JAB_PKT
},
335 { "rx_runt", XM_RXE_RUNT
, GM_RXE_FRAG
},
336 { "rx_too_long", XM_RXF_LNG_ERR
, GM_RXF_LNG_ERR
},
337 { "rx_fcs_error", XM_RXF_FCS_ERR
, GM_RXF_FCS_ERR
},
340 static int skge_get_stats_count(struct net_device
*dev
)
342 return ARRAY_SIZE(skge_stats
);
345 static void skge_get_ethtool_stats(struct net_device
*dev
,
346 struct ethtool_stats
*stats
, u64
*data
)
348 struct skge_port
*skge
= netdev_priv(dev
);
350 if (skge
->hw
->chip_id
== CHIP_ID_GENESIS
)
351 genesis_get_stats(skge
, data
);
353 yukon_get_stats(skge
, data
);
356 /* Use hardware MIB variables for critical path statistics and
357 * transmit feedback not reported at interrupt.
358 * Other errors are accounted for in interrupt handler.
360 static struct net_device_stats
*skge_get_stats(struct net_device
*dev
)
362 struct skge_port
*skge
= netdev_priv(dev
);
363 u64 data
[ARRAY_SIZE(skge_stats
)];
365 if (skge
->hw
->chip_id
== CHIP_ID_GENESIS
)
366 genesis_get_stats(skge
, data
);
368 yukon_get_stats(skge
, data
);
370 skge
->net_stats
.tx_bytes
= data
[0];
371 skge
->net_stats
.rx_bytes
= data
[1];
372 skge
->net_stats
.tx_packets
= data
[2] + data
[4] + data
[6];
373 skge
->net_stats
.rx_packets
= data
[3] + data
[5] + data
[7];
374 skge
->net_stats
.multicast
= data
[5] + data
[7];
375 skge
->net_stats
.collisions
= data
[10];
376 skge
->net_stats
.tx_aborted_errors
= data
[12];
378 return &skge
->net_stats
;
381 static void skge_get_strings(struct net_device
*dev
, u32 stringset
, u8
*data
)
387 for (i
= 0; i
< ARRAY_SIZE(skge_stats
); i
++)
388 memcpy(data
+ i
* ETH_GSTRING_LEN
,
389 skge_stats
[i
].name
, ETH_GSTRING_LEN
);
394 static void skge_get_ring_param(struct net_device
*dev
,
395 struct ethtool_ringparam
*p
)
397 struct skge_port
*skge
= netdev_priv(dev
);
399 p
->rx_max_pending
= MAX_RX_RING_SIZE
;
400 p
->tx_max_pending
= MAX_TX_RING_SIZE
;
401 p
->rx_mini_max_pending
= 0;
402 p
->rx_jumbo_max_pending
= 0;
404 p
->rx_pending
= skge
->rx_ring
.count
;
405 p
->tx_pending
= skge
->tx_ring
.count
;
406 p
->rx_mini_pending
= 0;
407 p
->rx_jumbo_pending
= 0;
410 static int skge_set_ring_param(struct net_device
*dev
,
411 struct ethtool_ringparam
*p
)
413 struct skge_port
*skge
= netdev_priv(dev
);
415 if (p
->rx_pending
== 0 || p
->rx_pending
> MAX_RX_RING_SIZE
||
416 p
->tx_pending
== 0 || p
->tx_pending
> MAX_TX_RING_SIZE
)
419 skge
->rx_ring
.count
= p
->rx_pending
;
420 skge
->tx_ring
.count
= p
->tx_pending
;
422 if (netif_running(dev
)) {
430 static u32
skge_get_msglevel(struct net_device
*netdev
)
432 struct skge_port
*skge
= netdev_priv(netdev
);
433 return skge
->msg_enable
;
436 static void skge_set_msglevel(struct net_device
*netdev
, u32 value
)
438 struct skge_port
*skge
= netdev_priv(netdev
);
439 skge
->msg_enable
= value
;
442 static int skge_nway_reset(struct net_device
*dev
)
444 struct skge_port
*skge
= netdev_priv(dev
);
445 struct skge_hw
*hw
= skge
->hw
;
446 int port
= skge
->port
;
448 if (skge
->autoneg
!= AUTONEG_ENABLE
|| !netif_running(dev
))
451 spin_lock_bh(&hw
->phy_lock
);
452 if (hw
->chip_id
== CHIP_ID_GENESIS
) {
453 genesis_reset(hw
, port
);
454 genesis_mac_init(hw
, port
);
456 yukon_reset(hw
, port
);
457 yukon_init(hw
, port
);
459 spin_unlock_bh(&hw
->phy_lock
);
463 static int skge_set_sg(struct net_device
*dev
, u32 data
)
465 struct skge_port
*skge
= netdev_priv(dev
);
466 struct skge_hw
*hw
= skge
->hw
;
468 if (hw
->chip_id
== CHIP_ID_GENESIS
&& data
)
470 return ethtool_op_set_sg(dev
, data
);
473 static int skge_set_tx_csum(struct net_device
*dev
, u32 data
)
475 struct skge_port
*skge
= netdev_priv(dev
);
476 struct skge_hw
*hw
= skge
->hw
;
478 if (hw
->chip_id
== CHIP_ID_GENESIS
&& data
)
481 return ethtool_op_set_tx_csum(dev
, data
);
484 static u32
skge_get_rx_csum(struct net_device
*dev
)
486 struct skge_port
*skge
= netdev_priv(dev
);
488 return skge
->rx_csum
;
491 /* Only Yukon supports checksum offload. */
492 static int skge_set_rx_csum(struct net_device
*dev
, u32 data
)
494 struct skge_port
*skge
= netdev_priv(dev
);
496 if (skge
->hw
->chip_id
== CHIP_ID_GENESIS
&& data
)
499 skge
->rx_csum
= data
;
503 static void skge_get_pauseparam(struct net_device
*dev
,
504 struct ethtool_pauseparam
*ecmd
)
506 struct skge_port
*skge
= netdev_priv(dev
);
508 ecmd
->tx_pause
= (skge
->flow_control
== FLOW_MODE_LOC_SEND
)
509 || (skge
->flow_control
== FLOW_MODE_SYMMETRIC
);
510 ecmd
->rx_pause
= (skge
->flow_control
== FLOW_MODE_REM_SEND
)
511 || (skge
->flow_control
== FLOW_MODE_SYMMETRIC
);
513 ecmd
->autoneg
= skge
->autoneg
;
516 static int skge_set_pauseparam(struct net_device
*dev
,
517 struct ethtool_pauseparam
*ecmd
)
519 struct skge_port
*skge
= netdev_priv(dev
);
521 skge
->autoneg
= ecmd
->autoneg
;
522 if (ecmd
->rx_pause
&& ecmd
->tx_pause
)
523 skge
->flow_control
= FLOW_MODE_SYMMETRIC
;
524 else if (ecmd
->rx_pause
&& !ecmd
->tx_pause
)
525 skge
->flow_control
= FLOW_MODE_REM_SEND
;
526 else if (!ecmd
->rx_pause
&& ecmd
->tx_pause
)
527 skge
->flow_control
= FLOW_MODE_LOC_SEND
;
529 skge
->flow_control
= FLOW_MODE_NONE
;
531 if (netif_running(dev
)) {
538 /* Chip internal frequency for clock calculations */
539 static inline u32
hwkhz(const struct skge_hw
*hw
)
541 if (hw
->chip_id
== CHIP_ID_GENESIS
)
542 return 53215; /* or: 53.125 MHz */
544 return 78215; /* or: 78.125 MHz */
547 /* Chip hz to microseconds */
548 static inline u32
skge_clk2usec(const struct skge_hw
*hw
, u32 ticks
)
550 return (ticks
* 1000) / hwkhz(hw
);
553 /* Microseconds to chip hz */
554 static inline u32
skge_usecs2clk(const struct skge_hw
*hw
, u32 usec
)
556 return hwkhz(hw
) * usec
/ 1000;
559 static int skge_get_coalesce(struct net_device
*dev
,
560 struct ethtool_coalesce
*ecmd
)
562 struct skge_port
*skge
= netdev_priv(dev
);
563 struct skge_hw
*hw
= skge
->hw
;
564 int port
= skge
->port
;
566 ecmd
->rx_coalesce_usecs
= 0;
567 ecmd
->tx_coalesce_usecs
= 0;
569 if (skge_read32(hw
, B2_IRQM_CTRL
) & TIM_START
) {
570 u32 delay
= skge_clk2usec(hw
, skge_read32(hw
, B2_IRQM_INI
));
571 u32 msk
= skge_read32(hw
, B2_IRQM_MSK
);
573 if (msk
& rxirqmask
[port
])
574 ecmd
->rx_coalesce_usecs
= delay
;
575 if (msk
& txirqmask
[port
])
576 ecmd
->tx_coalesce_usecs
= delay
;
582 /* Note: interrupt timer is per board, but can turn on/off per port */
583 static int skge_set_coalesce(struct net_device
*dev
,
584 struct ethtool_coalesce
*ecmd
)
586 struct skge_port
*skge
= netdev_priv(dev
);
587 struct skge_hw
*hw
= skge
->hw
;
588 int port
= skge
->port
;
589 u32 msk
= skge_read32(hw
, B2_IRQM_MSK
);
592 if (ecmd
->rx_coalesce_usecs
== 0)
593 msk
&= ~rxirqmask
[port
];
594 else if (ecmd
->rx_coalesce_usecs
< 25 ||
595 ecmd
->rx_coalesce_usecs
> 33333)
598 msk
|= rxirqmask
[port
];
599 delay
= ecmd
->rx_coalesce_usecs
;
602 if (ecmd
->tx_coalesce_usecs
== 0)
603 msk
&= ~txirqmask
[port
];
604 else if (ecmd
->tx_coalesce_usecs
< 25 ||
605 ecmd
->tx_coalesce_usecs
> 33333)
608 msk
|= txirqmask
[port
];
609 delay
= min(delay
, ecmd
->rx_coalesce_usecs
);
612 skge_write32(hw
, B2_IRQM_MSK
, msk
);
614 skge_write32(hw
, B2_IRQM_CTRL
, TIM_STOP
);
616 skge_write32(hw
, B2_IRQM_INI
, skge_usecs2clk(hw
, delay
));
617 skge_write32(hw
, B2_IRQM_CTRL
, TIM_START
);
622 static void skge_led_on(struct skge_hw
*hw
, int port
)
624 if (hw
->chip_id
== CHIP_ID_GENESIS
) {
625 skge_write8(hw
, SK_REG(port
, LNK_LED_REG
), LINKLED_ON
);
626 skge_write8(hw
, B0_LED
, LED_STAT_ON
);
628 skge_write8(hw
, SK_REG(port
, RX_LED_TST
), LED_T_ON
);
629 skge_write32(hw
, SK_REG(port
, RX_LED_VAL
), 100);
630 skge_write8(hw
, SK_REG(port
, RX_LED_CTRL
), LED_START
);
632 /* For Broadcom Phy only */
633 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_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
);
655 xm_phy_write(hw
, port
, PHY_BCOM_P_EXT_CTRL
, PHY_B_PEC_LED_OFF
);
657 gm_phy_write(hw
, port
, PHY_MARV_LED_CTRL
, 0);
658 gm_phy_write(hw
, port
, PHY_MARV_LED_OVER
,
659 PHY_M_LED_MO_DUP(MO_LED_OFF
) |
660 PHY_M_LED_MO_10(MO_LED_OFF
) |
661 PHY_M_LED_MO_100(MO_LED_OFF
) |
662 PHY_M_LED_MO_1000(MO_LED_OFF
) |
663 PHY_M_LED_MO_RX(MO_LED_OFF
));
667 static void skge_blink_timer(unsigned long data
)
669 struct skge_port
*skge
= (struct skge_port
*) data
;
670 struct skge_hw
*hw
= skge
->hw
;
672 spin_lock_bh(&hw
->phy_lock
);
674 skge_led_on(hw
, skge
->port
);
676 skge_led_off(hw
, skge
->port
);
677 spin_unlock_bh(&hw
->phy_lock
);
679 skge
->blink_on
= !skge
->blink_on
;
680 mod_timer(&skge
->led_blink
, jiffies
+ BLINK_HZ
);
683 /* blink LED's for finding board */
684 static int skge_phys_id(struct net_device
*dev
, u32 data
)
686 struct skge_port
*skge
= netdev_priv(dev
);
688 if (!data
|| data
> (u32
)(MAX_SCHEDULE_TIMEOUT
/ HZ
))
689 data
= (u32
)(MAX_SCHEDULE_TIMEOUT
/ HZ
);
693 mod_timer(&skge
->led_blink
, jiffies
+1);
695 msleep_interruptible(data
* 1000);
696 del_timer_sync(&skge
->led_blink
);
698 skge_led_off(skge
->hw
, skge
->port
);
703 static struct ethtool_ops skge_ethtool_ops
= {
704 .get_settings
= skge_get_settings
,
705 .set_settings
= skge_set_settings
,
706 .get_drvinfo
= skge_get_drvinfo
,
707 .get_regs_len
= skge_get_regs_len
,
708 .get_regs
= skge_get_regs
,
709 .get_wol
= skge_get_wol
,
710 .set_wol
= skge_set_wol
,
711 .get_msglevel
= skge_get_msglevel
,
712 .set_msglevel
= skge_set_msglevel
,
713 .nway_reset
= skge_nway_reset
,
714 .get_link
= ethtool_op_get_link
,
715 .get_ringparam
= skge_get_ring_param
,
716 .set_ringparam
= skge_set_ring_param
,
717 .get_pauseparam
= skge_get_pauseparam
,
718 .set_pauseparam
= skge_set_pauseparam
,
719 .get_coalesce
= skge_get_coalesce
,
720 .set_coalesce
= skge_set_coalesce
,
721 .get_sg
= ethtool_op_get_sg
,
722 .set_sg
= skge_set_sg
,
723 .get_tx_csum
= ethtool_op_get_tx_csum
,
724 .set_tx_csum
= skge_set_tx_csum
,
725 .get_rx_csum
= skge_get_rx_csum
,
726 .set_rx_csum
= skge_set_rx_csum
,
727 .get_strings
= skge_get_strings
,
728 .phys_id
= skge_phys_id
,
729 .get_stats_count
= skge_get_stats_count
,
730 .get_ethtool_stats
= skge_get_ethtool_stats
,
734 * Allocate ring elements and chain them together
735 * One-to-one association of board descriptors with ring elements
737 static int skge_ring_alloc(struct skge_ring
*ring
, void *vaddr
, u64 base
)
739 struct skge_tx_desc
*d
;
740 struct skge_element
*e
;
743 ring
->start
= kmalloc(sizeof(*e
)*ring
->count
, GFP_KERNEL
);
747 for (i
= 0, e
= ring
->start
, d
= vaddr
; i
< ring
->count
; i
++, e
++, d
++) {
750 if (i
== ring
->count
- 1) {
751 e
->next
= ring
->start
;
752 d
->next_offset
= base
;
755 d
->next_offset
= base
+ (i
+1) * sizeof(*d
);
758 ring
->to_use
= ring
->to_clean
= ring
->start
;
763 static struct sk_buff
*skge_rx_alloc(struct net_device
*dev
, unsigned int size
)
765 struct sk_buff
*skb
= dev_alloc_skb(size
);
769 skb_reserve(skb
, NET_IP_ALIGN
);
774 /* Allocate and setup a new buffer for receiving */
775 static void skge_rx_setup(struct skge_port
*skge
, struct skge_element
*e
,
776 struct sk_buff
*skb
, unsigned int bufsize
)
778 struct skge_rx_desc
*rd
= e
->desc
;
781 map
= pci_map_single(skge
->hw
->pdev
, skb
->data
, bufsize
,
785 rd
->dma_hi
= map
>> 32;
787 rd
->csum1_start
= ETH_HLEN
;
788 rd
->csum2_start
= ETH_HLEN
;
794 rd
->control
= BMU_OWN
| BMU_STF
| BMU_IRQ_EOF
| BMU_TCP_CHECK
| bufsize
;
795 pci_unmap_addr_set(e
, mapaddr
, map
);
796 pci_unmap_len_set(e
, maplen
, bufsize
);
799 /* Resume receiving using existing skb,
800 * Note: DMA address is not changed by chip.
801 * MTU not changed while receiver active.
803 static void skge_rx_reuse(struct skge_element
*e
, unsigned int size
)
805 struct skge_rx_desc
*rd
= e
->desc
;
808 rd
->csum2_start
= ETH_HLEN
;
812 rd
->control
= BMU_OWN
| BMU_STF
| BMU_IRQ_EOF
| BMU_TCP_CHECK
| size
;
816 /* Free all buffers in receive ring, assumes receiver stopped */
817 static void skge_rx_clean(struct skge_port
*skge
)
819 struct skge_hw
*hw
= skge
->hw
;
820 struct skge_ring
*ring
= &skge
->rx_ring
;
821 struct skge_element
*e
;
825 struct skge_rx_desc
*rd
= e
->desc
;
828 pci_unmap_single(hw
->pdev
,
829 pci_unmap_addr(e
, mapaddr
),
830 pci_unmap_len(e
, maplen
),
832 dev_kfree_skb(e
->skb
);
835 } while ((e
= e
->next
) != ring
->start
);
839 /* Allocate buffers for receive ring
840 * For receive: to_clean is next received frame.
842 static int skge_rx_fill(struct skge_port
*skge
)
844 struct skge_ring
*ring
= &skge
->rx_ring
;
845 struct skge_element
*e
;
846 unsigned int bufsize
= skge
->rx_buf_size
;
850 struct sk_buff
*skb
= skge_rx_alloc(skge
->netdev
, bufsize
);
855 skge_rx_setup(skge
, e
, skb
, bufsize
);
856 } while ( (e
= e
->next
) != ring
->start
);
858 ring
->to_clean
= ring
->start
;
862 static void skge_link_up(struct skge_port
*skge
)
864 netif_carrier_on(skge
->netdev
);
865 if (skge
->tx_avail
> MAX_SKB_FRAGS
+ 1)
866 netif_wake_queue(skge
->netdev
);
868 if (netif_msg_link(skge
))
870 "%s: Link is up at %d Mbps, %s duplex, flow control %s\n",
871 skge
->netdev
->name
, skge
->speed
,
872 skge
->duplex
== DUPLEX_FULL
? "full" : "half",
873 (skge
->flow_control
== FLOW_MODE_NONE
) ? "none" :
874 (skge
->flow_control
== FLOW_MODE_LOC_SEND
) ? "tx only" :
875 (skge
->flow_control
== FLOW_MODE_REM_SEND
) ? "rx only" :
876 (skge
->flow_control
== FLOW_MODE_SYMMETRIC
) ? "tx and rx" :
880 static void skge_link_down(struct skge_port
*skge
)
882 netif_carrier_off(skge
->netdev
);
883 netif_stop_queue(skge
->netdev
);
885 if (netif_msg_link(skge
))
886 printk(KERN_INFO PFX
"%s: Link is down.\n", skge
->netdev
->name
);
889 static u16
xm_phy_read(struct skge_hw
*hw
, int port
, u16 reg
)
894 xm_write16(hw
, port
, XM_PHY_ADDR
, reg
| hw
->phy_addr
);
895 v
= xm_read16(hw
, port
, XM_PHY_DATA
);
897 /* Need to wait for external PHY */
898 for (i
= 0; i
< PHY_RETRIES
; i
++) {
900 if (xm_read16(hw
, port
, XM_MMU_CMD
)
905 printk(KERN_WARNING PFX
"%s: phy read timed out\n",
906 hw
->dev
[port
]->name
);
909 v
= xm_read16(hw
, port
, XM_PHY_DATA
);
914 static void xm_phy_write(struct skge_hw
*hw
, int port
, u16 reg
, u16 val
)
918 xm_write16(hw
, port
, XM_PHY_ADDR
, reg
| hw
->phy_addr
);
919 for (i
= 0; i
< PHY_RETRIES
; i
++) {
920 if (!(xm_read16(hw
, port
, XM_MMU_CMD
) & XM_MMU_PHY_BUSY
))
924 printk(KERN_WARNING PFX
"%s: phy write failed to come ready\n",
925 hw
->dev
[port
]->name
);
929 xm_write16(hw
, port
, XM_PHY_DATA
, val
);
930 for (i
= 0; i
< PHY_RETRIES
; i
++) {
932 if (!(xm_read16(hw
, port
, XM_MMU_CMD
) & XM_MMU_PHY_BUSY
))
935 printk(KERN_WARNING PFX
"%s: phy write timed out\n",
936 hw
->dev
[port
]->name
);
939 static void genesis_init(struct skge_hw
*hw
)
941 /* set blink source counter */
942 skge_write32(hw
, B2_BSC_INI
, (SK_BLK_DUR
* SK_FACT_53
) / 100);
943 skge_write8(hw
, B2_BSC_CTRL
, BSC_START
);
945 /* configure mac arbiter */
946 skge_write16(hw
, B3_MA_TO_CTRL
, MA_RST_CLR
);
948 /* configure mac arbiter timeout values */
949 skge_write8(hw
, B3_MA_TOINI_RX1
, SK_MAC_TO_53
);
950 skge_write8(hw
, B3_MA_TOINI_RX2
, SK_MAC_TO_53
);
951 skge_write8(hw
, B3_MA_TOINI_TX1
, SK_MAC_TO_53
);
952 skge_write8(hw
, B3_MA_TOINI_TX2
, SK_MAC_TO_53
);
954 skge_write8(hw
, B3_MA_RCINI_RX1
, 0);
955 skge_write8(hw
, B3_MA_RCINI_RX2
, 0);
956 skge_write8(hw
, B3_MA_RCINI_TX1
, 0);
957 skge_write8(hw
, B3_MA_RCINI_TX2
, 0);
959 /* configure packet arbiter timeout */
960 skge_write16(hw
, B3_PA_CTRL
, PA_RST_CLR
);
961 skge_write16(hw
, B3_PA_TOINI_RX1
, SK_PKT_TO_MAX
);
962 skge_write16(hw
, B3_PA_TOINI_TX1
, SK_PKT_TO_MAX
);
963 skge_write16(hw
, B3_PA_TOINI_RX2
, SK_PKT_TO_MAX
);
964 skge_write16(hw
, B3_PA_TOINI_TX2
, SK_PKT_TO_MAX
);
967 static void genesis_reset(struct skge_hw
*hw
, int port
)
969 const u8 zero
[8] = { 0 };
971 /* reset the statistics module */
972 xm_write32(hw
, port
, XM_GP_PORT
, XM_GP_RES_STAT
);
973 xm_write16(hw
, port
, XM_IMSK
, 0xffff); /* disable XMAC IRQs */
974 xm_write32(hw
, port
, XM_MODE
, 0); /* clear Mode Reg */
975 xm_write16(hw
, port
, XM_TX_CMD
, 0); /* reset TX CMD Reg */
976 xm_write16(hw
, port
, XM_RX_CMD
, 0); /* reset RX CMD Reg */
978 /* disable Broadcom PHY IRQ */
979 xm_write16(hw
, port
, PHY_BCOM_INT_MASK
, 0xffff);
981 xm_outhash(hw
, port
, XM_HSM
, zero
);
985 /* Convert mode to MII values */
986 static const u16 phy_pause_map
[] = {
987 [FLOW_MODE_NONE
] = 0,
988 [FLOW_MODE_LOC_SEND
] = PHY_AN_PAUSE_ASYM
,
989 [FLOW_MODE_SYMMETRIC
] = PHY_AN_PAUSE_CAP
,
990 [FLOW_MODE_REM_SEND
] = PHY_AN_PAUSE_CAP
| PHY_AN_PAUSE_ASYM
,
994 /* Check status of Broadcom phy link */
995 static void bcom_check_link(struct skge_hw
*hw
, int port
)
997 struct net_device
*dev
= hw
->dev
[port
];
998 struct skge_port
*skge
= netdev_priv(dev
);
1001 /* read twice because of latch */
1002 (void) xm_phy_read(hw
, port
, PHY_BCOM_STAT
);
1003 status
= xm_phy_read(hw
, port
, PHY_BCOM_STAT
);
1005 pr_debug("bcom_check_link status=0x%x\n", status
);
1007 if ((status
& PHY_ST_LSYNC
) == 0) {
1008 u16 cmd
= xm_read16(hw
, port
, XM_MMU_CMD
);
1009 cmd
&= ~(XM_MMU_ENA_RX
| XM_MMU_ENA_TX
);
1010 xm_write16(hw
, port
, XM_MMU_CMD
, cmd
);
1011 /* dummy read to ensure writing */
1012 (void) xm_read16(hw
, port
, XM_MMU_CMD
);
1014 if (netif_carrier_ok(dev
))
1015 skge_link_down(skge
);
1017 if (skge
->autoneg
== AUTONEG_ENABLE
&&
1018 (status
& PHY_ST_AN_OVER
)) {
1019 u16 lpa
= xm_phy_read(hw
, port
, PHY_BCOM_AUNE_LP
);
1020 u16 aux
= xm_phy_read(hw
, port
, PHY_BCOM_AUX_STAT
);
1022 if (lpa
& PHY_B_AN_RF
) {
1023 printk(KERN_NOTICE PFX
"%s: remote fault\n",
1028 /* Check Duplex mismatch */
1029 switch (aux
& PHY_B_AS_AN_RES_MSK
) {
1030 case PHY_B_RES_1000FD
:
1031 skge
->duplex
= DUPLEX_FULL
;
1033 case PHY_B_RES_1000HD
:
1034 skge
->duplex
= DUPLEX_HALF
;
1037 printk(KERN_NOTICE PFX
"%s: duplex mismatch\n",
1043 /* We are using IEEE 802.3z/D5.0 Table 37-4 */
1044 switch (aux
& PHY_B_AS_PAUSE_MSK
) {
1045 case PHY_B_AS_PAUSE_MSK
:
1046 skge
->flow_control
= FLOW_MODE_SYMMETRIC
;
1049 skge
->flow_control
= FLOW_MODE_REM_SEND
;
1052 skge
->flow_control
= FLOW_MODE_LOC_SEND
;
1055 skge
->flow_control
= FLOW_MODE_NONE
;
1058 skge
->speed
= SPEED_1000
;
1061 if (!netif_carrier_ok(dev
))
1062 genesis_link_up(skge
);
1066 /* Broadcom 5400 only supports giagabit! SysKonnect did not put an additional
1067 * Phy on for 100 or 10Mbit operation
1069 static void bcom_phy_init(struct skge_port
*skge
, int jumbo
)
1071 struct skge_hw
*hw
= skge
->hw
;
1072 int port
= skge
->port
;
1074 u16 id1
, r
, ext
, ctl
;
1076 /* magic workaround patterns for Broadcom */
1077 static const struct {
1081 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 },
1082 { 0x17, 0x0013 }, { 0x15, 0x0404 }, { 0x17, 0x8006 },
1083 { 0x15, 0x0132 }, { 0x17, 0x8006 }, { 0x15, 0x0232 },
1084 { 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 },
1086 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1204 },
1087 { 0x17, 0x0013 }, { 0x15, 0x0A04 }, { 0x18, 0x0420 },
1090 pr_debug("bcom_phy_init\n");
1092 /* read Id from external PHY (all have the same address) */
1093 id1
= xm_phy_read(hw
, port
, PHY_XMAC_ID1
);
1095 /* Optimize MDIO transfer by suppressing preamble. */
1096 r
= xm_read16(hw
, port
, XM_MMU_CMD
);
1098 xm_write16(hw
, port
, XM_MMU_CMD
,r
);
1101 case PHY_BCOM_ID1_C0
:
1103 * Workaround BCOM Errata for the C0 type.
1104 * Write magic patterns to reserved registers.
1106 for (i
= 0; i
< ARRAY_SIZE(C0hack
); i
++)
1107 xm_phy_write(hw
, port
,
1108 C0hack
[i
].reg
, C0hack
[i
].val
);
1111 case PHY_BCOM_ID1_A1
:
1113 * Workaround BCOM Errata for the A1 type.
1114 * Write magic patterns to reserved registers.
1116 for (i
= 0; i
< ARRAY_SIZE(A1hack
); i
++)
1117 xm_phy_write(hw
, port
,
1118 A1hack
[i
].reg
, A1hack
[i
].val
);
1123 * Workaround BCOM Errata (#10523) for all BCom PHYs.
1124 * Disable Power Management after reset.
1126 r
= xm_phy_read(hw
, port
, PHY_BCOM_AUX_CTRL
);
1127 r
|= PHY_B_AC_DIS_PM
;
1128 xm_phy_write(hw
, port
, PHY_BCOM_AUX_CTRL
, r
);
1131 xm_read16(hw
, port
, XM_ISRC
);
1133 ext
= PHY_B_PEC_EN_LTR
; /* enable tx led */
1134 ctl
= PHY_CT_SP1000
; /* always 1000mbit */
1136 if (skge
->autoneg
== AUTONEG_ENABLE
) {
1138 * Workaround BCOM Errata #1 for the C5 type.
1139 * 1000Base-T Link Acquisition Failure in Slave Mode
1140 * Set Repeater/DTE bit 10 of the 1000Base-T Control Register
1142 u16 adv
= PHY_B_1000C_RD
;
1143 if (skge
->advertising
& ADVERTISED_1000baseT_Half
)
1144 adv
|= PHY_B_1000C_AHD
;
1145 if (skge
->advertising
& ADVERTISED_1000baseT_Full
)
1146 adv
|= PHY_B_1000C_AFD
;
1147 xm_phy_write(hw
, port
, PHY_BCOM_1000T_CTRL
, adv
);
1149 ctl
|= PHY_CT_ANE
| PHY_CT_RE_CFG
;
1151 if (skge
->duplex
== DUPLEX_FULL
)
1152 ctl
|= PHY_CT_DUP_MD
;
1153 /* Force to slave */
1154 xm_phy_write(hw
, port
, PHY_BCOM_1000T_CTRL
, PHY_B_1000C_MSE
);
1157 /* Set autonegotiation pause parameters */
1158 xm_phy_write(hw
, port
, PHY_BCOM_AUNE_ADV
,
1159 phy_pause_map
[skge
->flow_control
] | PHY_AN_CSMA
);
1161 /* Handle Jumbo frames */
1163 xm_phy_write(hw
, port
, PHY_BCOM_AUX_CTRL
,
1164 PHY_B_AC_TX_TST
| PHY_B_AC_LONG_PACK
);
1166 ext
|= PHY_B_PEC_HIGH_LA
;
1170 xm_phy_write(hw
, port
, PHY_BCOM_P_EXT_CTRL
, ext
);
1171 xm_phy_write(hw
, port
, PHY_BCOM_CTRL
, ctl
);
1173 /* Use link status change interrrupt */
1174 xm_phy_write(hw
, port
, PHY_BCOM_INT_MASK
, PHY_B_DEF_MSK
);
1176 bcom_check_link(hw
, port
);
1179 static void genesis_mac_init(struct skge_hw
*hw
, int port
)
1181 struct net_device
*dev
= hw
->dev
[port
];
1182 struct skge_port
*skge
= netdev_priv(dev
);
1183 int jumbo
= hw
->dev
[port
]->mtu
> ETH_DATA_LEN
;
1186 const u8 zero
[6] = { 0 };
1188 /* Clear MIB counters */
1189 xm_write16(hw
, port
, XM_STAT_CMD
,
1190 XM_SC_CLR_RXC
| XM_SC_CLR_TXC
);
1191 /* Clear two times according to Errata #3 */
1192 xm_write16(hw
, port
, XM_STAT_CMD
,
1193 XM_SC_CLR_RXC
| XM_SC_CLR_TXC
);
1195 /* initialize Rx, Tx and Link LED */
1196 skge_write8(hw
, SK_REG(port
, LNK_LED_REG
), LINKLED_ON
);
1197 skge_write8(hw
, SK_REG(port
, LNK_LED_REG
), LINKLED_LINKSYNC_ON
);
1199 skge_write8(hw
, SK_REG(port
, RX_LED_CTRL
), LED_START
);
1200 skge_write8(hw
, SK_REG(port
, TX_LED_CTRL
), LED_START
);
1202 /* Unreset the XMAC. */
1203 skge_write16(hw
, SK_REG(port
, TX_MFF_CTRL1
), MFF_CLR_MAC_RST
);
1206 * Perform additional initialization for external PHYs,
1207 * namely for the 1000baseTX cards that use the XMAC's
1210 /* Take external Phy out of reset */
1211 r
= skge_read32(hw
, B2_GP_IO
);
1213 r
|= GP_DIR_0
|GP_IO_0
;
1215 r
|= GP_DIR_2
|GP_IO_2
;
1217 skge_write32(hw
, B2_GP_IO
, r
);
1218 skge_read32(hw
, B2_GP_IO
);
1220 /* Enable GMII interfac */
1221 xm_write16(hw
, port
, XM_HW_CFG
, XM_HW_GMII_MD
);
1223 bcom_phy_init(skge
, jumbo
);
1225 /* Set Station Address */
1226 xm_outaddr(hw
, port
, XM_SA
, dev
->dev_addr
);
1228 /* We don't use match addresses so clear */
1229 for (i
= 1; i
< 16; i
++)
1230 xm_outaddr(hw
, port
, XM_EXM(i
), zero
);
1232 /* configure Rx High Water Mark (XM_RX_HI_WM) */
1233 xm_write16(hw
, port
, XM_RX_HI_WM
, 1450);
1235 /* We don't need the FCS appended to the packet. */
1236 r
= XM_RX_LENERR_OK
| XM_RX_STRIP_FCS
;
1238 r
|= XM_RX_BIG_PK_OK
;
1240 if (skge
->duplex
== DUPLEX_HALF
) {
1242 * If in manual half duplex mode the other side might be in
1243 * full duplex mode, so ignore if a carrier extension is not seen
1244 * on frames received
1246 r
|= XM_RX_DIS_CEXT
;
1248 xm_write16(hw
, port
, XM_RX_CMD
, r
);
1251 /* We want short frames padded to 60 bytes. */
1252 xm_write16(hw
, port
, XM_TX_CMD
, XM_TX_AUTO_PAD
);
1255 * Bump up the transmit threshold. This helps hold off transmit
1256 * underruns when we're blasting traffic from both ports at once.
1258 xm_write16(hw
, port
, XM_TX_THR
, 512);
1261 * Enable the reception of all error frames. This is is
1262 * a necessary evil due to the design of the XMAC. The
1263 * XMAC's receive FIFO is only 8K in size, however jumbo
1264 * frames can be up to 9000 bytes in length. When bad
1265 * frame filtering is enabled, the XMAC's RX FIFO operates
1266 * in 'store and forward' mode. For this to work, the
1267 * entire frame has to fit into the FIFO, but that means
1268 * that jumbo frames larger than 8192 bytes will be
1269 * truncated. Disabling all bad frame filtering causes
1270 * the RX FIFO to operate in streaming mode, in which
1271 * case the XMAC will start transfering frames out of the
1272 * RX FIFO as soon as the FIFO threshold is reached.
1274 xm_write32(hw
, port
, XM_MODE
, XM_DEF_MODE
);
1278 * Initialize the Receive Counter Event Mask (XM_RX_EV_MSK)
1279 * - Enable all bits excepting 'Octets Rx OK Low CntOv'
1280 * and 'Octets Rx OK Hi Cnt Ov'.
1282 xm_write32(hw
, port
, XM_RX_EV_MSK
, XMR_DEF_MSK
);
1285 * Initialize the Transmit Counter Event Mask (XM_TX_EV_MSK)
1286 * - Enable all bits excepting 'Octets Tx OK Low CntOv'
1287 * and 'Octets Tx OK Hi Cnt Ov'.
1289 xm_write32(hw
, port
, XM_TX_EV_MSK
, XMT_DEF_MSK
);
1291 /* Configure MAC arbiter */
1292 skge_write16(hw
, B3_MA_TO_CTRL
, MA_RST_CLR
);
1294 /* configure timeout values */
1295 skge_write8(hw
, B3_MA_TOINI_RX1
, 72);
1296 skge_write8(hw
, B3_MA_TOINI_RX2
, 72);
1297 skge_write8(hw
, B3_MA_TOINI_TX1
, 72);
1298 skge_write8(hw
, B3_MA_TOINI_TX2
, 72);
1300 skge_write8(hw
, B3_MA_RCINI_RX1
, 0);
1301 skge_write8(hw
, B3_MA_RCINI_RX2
, 0);
1302 skge_write8(hw
, B3_MA_RCINI_TX1
, 0);
1303 skge_write8(hw
, B3_MA_RCINI_TX2
, 0);
1305 /* Configure Rx MAC FIFO */
1306 skge_write8(hw
, SK_REG(port
, RX_MFF_CTRL2
), MFF_RST_CLR
);
1307 skge_write16(hw
, SK_REG(port
, RX_MFF_CTRL1
), MFF_ENA_TIM_PAT
);
1308 skge_write8(hw
, SK_REG(port
, RX_MFF_CTRL2
), MFF_ENA_OP_MD
);
1310 /* Configure Tx MAC FIFO */
1311 skge_write8(hw
, SK_REG(port
, TX_MFF_CTRL2
), MFF_RST_CLR
);
1312 skge_write16(hw
, SK_REG(port
, TX_MFF_CTRL1
), MFF_TX_CTRL_DEF
);
1313 skge_write8(hw
, SK_REG(port
, TX_MFF_CTRL2
), MFF_ENA_OP_MD
);
1316 /* Enable frame flushing if jumbo frames used */
1317 skge_write16(hw
, SK_REG(port
,RX_MFF_CTRL1
), MFF_ENA_FLUSH
);
1319 /* enable timeout timers if normal frames */
1320 skge_write16(hw
, B3_PA_CTRL
,
1321 (port
== 0) ? PA_ENA_TO_TX1
: PA_ENA_TO_TX2
);
1325 static void genesis_stop(struct skge_port
*skge
)
1327 struct skge_hw
*hw
= skge
->hw
;
1328 int port
= skge
->port
;
1331 /* Clear Tx packet arbiter timeout IRQ */
1332 skge_write16(hw
, B3_PA_CTRL
,
1333 port
== 0 ? PA_CLR_TO_TX1
: PA_CLR_TO_TX2
);
1336 * If the transfer stucks at the MAC the STOP command will not
1337 * terminate if we don't flush the XMAC's transmit FIFO !
1339 xm_write32(hw
, port
, XM_MODE
,
1340 xm_read32(hw
, port
, XM_MODE
)|XM_MD_FTF
);
1344 skge_write16(hw
, SK_REG(port
, TX_MFF_CTRL1
), MFF_SET_MAC_RST
);
1346 /* For external PHYs there must be special handling */
1347 reg
= skge_read32(hw
, B2_GP_IO
);
1355 skge_write32(hw
, B2_GP_IO
, reg
);
1356 skge_read32(hw
, B2_GP_IO
);
1358 xm_write16(hw
, port
, XM_MMU_CMD
,
1359 xm_read16(hw
, port
, XM_MMU_CMD
)
1360 & ~(XM_MMU_ENA_RX
| XM_MMU_ENA_TX
));
1362 xm_read16(hw
, port
, XM_MMU_CMD
);
1366 static void genesis_get_stats(struct skge_port
*skge
, u64
*data
)
1368 struct skge_hw
*hw
= skge
->hw
;
1369 int port
= skge
->port
;
1371 unsigned long timeout
= jiffies
+ HZ
;
1373 xm_write16(hw
, port
,
1374 XM_STAT_CMD
, XM_SC_SNP_TXC
| XM_SC_SNP_RXC
);
1376 /* wait for update to complete */
1377 while (xm_read16(hw
, port
, XM_STAT_CMD
)
1378 & (XM_SC_SNP_TXC
| XM_SC_SNP_RXC
)) {
1379 if (time_after(jiffies
, timeout
))
1384 /* special case for 64 bit octet counter */
1385 data
[0] = (u64
) xm_read32(hw
, port
, XM_TXO_OK_HI
) << 32
1386 | xm_read32(hw
, port
, XM_TXO_OK_LO
);
1387 data
[1] = (u64
) xm_read32(hw
, port
, XM_RXO_OK_HI
) << 32
1388 | xm_read32(hw
, port
, XM_RXO_OK_LO
);
1390 for (i
= 2; i
< ARRAY_SIZE(skge_stats
); i
++)
1391 data
[i
] = xm_read32(hw
, port
, skge_stats
[i
].xmac_offset
);
1394 static void genesis_mac_intr(struct skge_hw
*hw
, int port
)
1396 struct skge_port
*skge
= netdev_priv(hw
->dev
[port
]);
1397 u16 status
= xm_read16(hw
, port
, XM_ISRC
);
1399 if (netif_msg_intr(skge
))
1400 printk(KERN_DEBUG PFX
"%s: mac interrupt status 0x%x\n",
1401 skge
->netdev
->name
, status
);
1403 if (status
& XM_IS_TXF_UR
) {
1404 xm_write32(hw
, port
, XM_MODE
, XM_MD_FTF
);
1405 ++skge
->net_stats
.tx_fifo_errors
;
1407 if (status
& XM_IS_RXF_OV
) {
1408 xm_write32(hw
, port
, XM_MODE
, XM_MD_FRF
);
1409 ++skge
->net_stats
.rx_fifo_errors
;
1413 static void gm_phy_write(struct skge_hw
*hw
, int port
, u16 reg
, u16 val
)
1417 gma_write16(hw
, port
, GM_SMI_DATA
, val
);
1418 gma_write16(hw
, port
, GM_SMI_CTRL
,
1419 GM_SMI_CT_PHY_AD(hw
->phy_addr
) | GM_SMI_CT_REG_AD(reg
));
1420 for (i
= 0; i
< PHY_RETRIES
; i
++) {
1423 if (!(gma_read16(hw
, port
, GM_SMI_CTRL
) & GM_SMI_CT_BUSY
))
1428 static u16
gm_phy_read(struct skge_hw
*hw
, int port
, u16 reg
)
1432 gma_write16(hw
, port
, GM_SMI_CTRL
,
1433 GM_SMI_CT_PHY_AD(hw
->phy_addr
)
1434 | GM_SMI_CT_REG_AD(reg
) | GM_SMI_CT_OP_RD
);
1436 for (i
= 0; i
< PHY_RETRIES
; i
++) {
1438 if (gma_read16(hw
, port
, GM_SMI_CTRL
) & GM_SMI_CT_RD_VAL
)
1442 printk(KERN_WARNING PFX
"%s: phy read timeout\n",
1443 hw
->dev
[port
]->name
);
1446 return gma_read16(hw
, port
, GM_SMI_DATA
);
1449 static void genesis_link_up(struct skge_port
*skge
)
1451 struct skge_hw
*hw
= skge
->hw
;
1452 int port
= skge
->port
;
1456 pr_debug("genesis_link_up\n");
1457 cmd
= xm_read16(hw
, port
, XM_MMU_CMD
);
1460 * enabling pause frame reception is required for 1000BT
1461 * because the XMAC is not reset if the link is going down
1463 if (skge
->flow_control
== FLOW_MODE_NONE
||
1464 skge
->flow_control
== FLOW_MODE_LOC_SEND
)
1465 /* Disable Pause Frame Reception */
1466 cmd
|= XM_MMU_IGN_PF
;
1468 /* Enable Pause Frame Reception */
1469 cmd
&= ~XM_MMU_IGN_PF
;
1471 xm_write16(hw
, port
, XM_MMU_CMD
, cmd
);
1473 mode
= xm_read32(hw
, port
, XM_MODE
);
1474 if (skge
->flow_control
== FLOW_MODE_SYMMETRIC
||
1475 skge
->flow_control
== FLOW_MODE_LOC_SEND
) {
1477 * Configure Pause Frame Generation
1478 * Use internal and external Pause Frame Generation.
1479 * Sending pause frames is edge triggered.
1480 * Send a Pause frame with the maximum pause time if
1481 * internal oder external FIFO full condition occurs.
1482 * Send a zero pause time frame to re-start transmission.
1484 /* XM_PAUSE_DA = '010000C28001' (default) */
1485 /* XM_MAC_PTIME = 0xffff (maximum) */
1486 /* remember this value is defined in big endian (!) */
1487 xm_write16(hw
, port
, XM_MAC_PTIME
, 0xffff);
1489 mode
|= XM_PAUSE_MODE
;
1490 skge_write16(hw
, SK_REG(port
, RX_MFF_CTRL1
), MFF_ENA_PAUSE
);
1493 * disable pause frame generation is required for 1000BT
1494 * because the XMAC is not reset if the link is going down
1496 /* Disable Pause Mode in Mode Register */
1497 mode
&= ~XM_PAUSE_MODE
;
1499 skge_write16(hw
, SK_REG(port
, RX_MFF_CTRL1
), MFF_DIS_PAUSE
);
1502 xm_write32(hw
, port
, XM_MODE
, mode
);
1505 /* disable GP0 interrupt bit for external Phy */
1506 msk
|= XM_IS_INP_ASS
;
1508 xm_write16(hw
, port
, XM_IMSK
, msk
);
1509 xm_read16(hw
, port
, XM_ISRC
);
1511 /* get MMU Command Reg. */
1512 cmd
= xm_read16(hw
, port
, XM_MMU_CMD
);
1513 if (skge
->duplex
== DUPLEX_FULL
)
1514 cmd
|= XM_MMU_GMII_FD
;
1517 * Workaround BCOM Errata (#10523) for all BCom Phys
1518 * Enable Power Management after link up
1520 xm_phy_write(hw
, port
, PHY_BCOM_AUX_CTRL
,
1521 xm_phy_read(hw
, port
, PHY_BCOM_AUX_CTRL
)
1522 & ~PHY_B_AC_DIS_PM
);
1523 xm_phy_write(hw
, port
, PHY_BCOM_INT_MASK
, PHY_B_DEF_MSK
);
1526 xm_write16(hw
, port
, XM_MMU_CMD
,
1527 cmd
| XM_MMU_ENA_RX
| XM_MMU_ENA_TX
);
1532 static inline void bcom_phy_intr(struct skge_port
*skge
)
1534 struct skge_hw
*hw
= skge
->hw
;
1535 int port
= skge
->port
;
1538 isrc
= xm_phy_read(hw
, port
, PHY_BCOM_INT_STAT
);
1539 if (netif_msg_intr(skge
))
1540 printk(KERN_DEBUG PFX
"%s: phy interrupt status 0x%x\n",
1541 skge
->netdev
->name
, isrc
);
1543 if (isrc
& PHY_B_IS_PSE
)
1544 printk(KERN_ERR PFX
"%s: uncorrectable pair swap error\n",
1545 hw
->dev
[port
]->name
);
1547 /* Workaround BCom Errata:
1548 * enable and disable loopback mode if "NO HCD" occurs.
1550 if (isrc
& PHY_B_IS_NO_HDCL
) {
1551 u16 ctrl
= xm_phy_read(hw
, port
, PHY_BCOM_CTRL
);
1552 xm_phy_write(hw
, port
, PHY_BCOM_CTRL
,
1553 ctrl
| PHY_CT_LOOP
);
1554 xm_phy_write(hw
, port
, PHY_BCOM_CTRL
,
1555 ctrl
& ~PHY_CT_LOOP
);
1558 if (isrc
& (PHY_B_IS_AN_PR
| PHY_B_IS_LST_CHANGE
))
1559 bcom_check_link(hw
, port
);
1563 /* Marvell Phy Initailization */
1564 static void yukon_init(struct skge_hw
*hw
, int port
)
1566 struct skge_port
*skge
= netdev_priv(hw
->dev
[port
]);
1567 u16 ctrl
, ct1000
, adv
;
1568 u16 ledctrl
, ledover
;
1570 pr_debug("yukon_init\n");
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 /* Setup Phy LED's */
1641 ledctrl
= PHY_M_LED_PULS_DUR(PULS_170MS
);
1644 ledctrl
|= PHY_M_LED_BLINK_RT(BLINK_84MS
) | PHY_M_LEDC_TX_CTRL
;
1646 /* turn off the Rx LED (LED_RX) */
1647 ledover
|= PHY_M_LED_MO_RX(MO_LED_OFF
);
1649 /* disable blink mode (LED_DUPLEX) on collisions */
1650 ctrl
|= PHY_M_LEDC_DP_CTRL
;
1651 gm_phy_write(hw
, port
, PHY_MARV_LED_CTRL
, ledctrl
);
1653 if (skge
->autoneg
== AUTONEG_DISABLE
|| skge
->speed
== SPEED_100
) {
1654 /* turn on 100 Mbps LED (LED_LINK100) */
1655 ledover
|= PHY_M_LED_MO_100(MO_LED_ON
);
1659 gm_phy_write(hw
, port
, PHY_MARV_LED_OVER
, ledover
);
1661 /* Enable phy interrupt on autonegotiation complete (or link up) */
1662 if (skge
->autoneg
== AUTONEG_ENABLE
)
1663 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, PHY_M_IS_AN_COMPL
);
1665 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, PHY_M_DEF_MSK
);
1668 static void yukon_reset(struct skge_hw
*hw
, int port
)
1670 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, 0);/* disable PHY IRQs */
1671 gma_write16(hw
, port
, GM_MC_ADDR_H1
, 0); /* clear MC hash */
1672 gma_write16(hw
, port
, GM_MC_ADDR_H2
, 0);
1673 gma_write16(hw
, port
, GM_MC_ADDR_H3
, 0);
1674 gma_write16(hw
, port
, GM_MC_ADDR_H4
, 0);
1676 gma_write16(hw
, port
, GM_RX_CTRL
,
1677 gma_read16(hw
, port
, GM_RX_CTRL
)
1678 | GM_RXCR_UCF_ENA
| GM_RXCR_MCF_ENA
);
1681 static void yukon_mac_init(struct skge_hw
*hw
, int port
)
1683 struct skge_port
*skge
= netdev_priv(hw
->dev
[port
]);
1686 const u8
*addr
= hw
->dev
[port
]->dev_addr
;
1688 /* WA code for COMA mode -- set PHY reset */
1689 if (hw
->chip_id
== CHIP_ID_YUKON_LITE
&&
1690 hw
->chip_rev
>= CHIP_REV_YU_LITE_A3
)
1691 skge_write32(hw
, B2_GP_IO
,
1692 (skge_read32(hw
, B2_GP_IO
) | GP_DIR_9
| GP_IO_9
));
1695 skge_write32(hw
, SK_REG(port
, GPHY_CTRL
), GPC_RST_SET
);
1696 skge_write32(hw
, SK_REG(port
, GMAC_CTRL
), GMC_RST_SET
);
1698 /* WA code for COMA mode -- clear PHY reset */
1699 if (hw
->chip_id
== CHIP_ID_YUKON_LITE
&&
1700 hw
->chip_rev
>= CHIP_REV_YU_LITE_A3
)
1701 skge_write32(hw
, B2_GP_IO
,
1702 (skge_read32(hw
, B2_GP_IO
) | GP_DIR_9
)
1705 /* Set hardware config mode */
1706 reg
= GPC_INT_POL_HI
| GPC_DIS_FC
| GPC_DIS_SLEEP
|
1707 GPC_ENA_XC
| GPC_ANEG_ADV_ALL_M
| GPC_ENA_PAUSE
;
1708 reg
|= iscopper(hw
) ? GPC_HWCFG_GMII_COP
: GPC_HWCFG_GMII_FIB
;
1710 /* Clear GMC reset */
1711 skge_write32(hw
, SK_REG(port
, GPHY_CTRL
), reg
| GPC_RST_SET
);
1712 skge_write32(hw
, SK_REG(port
, GPHY_CTRL
), reg
| GPC_RST_CLR
);
1713 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_1000
;
1724 reg
|= GM_GPCR_SPEED_100
;
1727 if (skge
->duplex
== DUPLEX_FULL
)
1728 reg
|= GM_GPCR_DUP_FULL
;
1730 reg
= GM_GPCR_SPEED_1000
| GM_GPCR_SPEED_100
| GM_GPCR_DUP_FULL
;
1731 switch (skge
->flow_control
) {
1732 case FLOW_MODE_NONE
:
1733 skge_write32(hw
, SK_REG(port
, GMAC_CTRL
), GMC_PAUSE_OFF
);
1734 reg
|= GM_GPCR_FC_TX_DIS
| GM_GPCR_FC_RX_DIS
| GM_GPCR_AU_FCT_DIS
;
1736 case FLOW_MODE_LOC_SEND
:
1737 /* disable Rx flow-control */
1738 reg
|= GM_GPCR_FC_RX_DIS
| GM_GPCR_AU_FCT_DIS
;
1741 gma_write16(hw
, port
, GM_GP_CTRL
, reg
);
1742 skge_read16(hw
, GMAC_IRQ_SRC
);
1744 yukon_init(hw
, port
);
1747 reg
= gma_read16(hw
, port
, GM_PHY_ADDR
);
1748 gma_write16(hw
, port
, GM_PHY_ADDR
, reg
| GM_PAR_MIB_CLR
);
1750 for (i
= 0; i
< GM_MIB_CNT_SIZE
; i
++)
1751 gma_read16(hw
, port
, GM_MIB_CNT_BASE
+ 8*i
);
1752 gma_write16(hw
, port
, GM_PHY_ADDR
, reg
);
1754 /* transmit control */
1755 gma_write16(hw
, port
, GM_TX_CTRL
, TX_COL_THR(TX_COL_DEF
));
1757 /* receive control reg: unicast + multicast + no FCS */
1758 gma_write16(hw
, port
, GM_RX_CTRL
,
1759 GM_RXCR_UCF_ENA
| GM_RXCR_CRC_DIS
| GM_RXCR_MCF_ENA
);
1761 /* transmit flow control */
1762 gma_write16(hw
, port
, GM_TX_FLOW_CTRL
, 0xffff);
1764 /* transmit parameter */
1765 gma_write16(hw
, port
, GM_TX_PARAM
,
1766 TX_JAM_LEN_VAL(TX_JAM_LEN_DEF
) |
1767 TX_JAM_IPG_VAL(TX_JAM_IPG_DEF
) |
1768 TX_IPG_JAM_DATA(TX_IPG_JAM_DEF
));
1770 /* serial mode register */
1771 reg
= GM_SMOD_VLAN_ENA
| IPG_DATA_VAL(IPG_DATA_DEF
);
1772 if (hw
->dev
[port
]->mtu
> 1500)
1773 reg
|= GM_SMOD_JUMBO_ENA
;
1775 gma_write16(hw
, port
, GM_SERIAL_MODE
, reg
);
1777 /* physical address: used for pause frames */
1778 gma_set_addr(hw
, port
, GM_SRC_ADDR_1L
, addr
);
1779 /* virtual address for data */
1780 gma_set_addr(hw
, port
, GM_SRC_ADDR_2L
, addr
);
1782 /* enable interrupt mask for counter overflows */
1783 gma_write16(hw
, port
, GM_TX_IRQ_MSK
, 0);
1784 gma_write16(hw
, port
, GM_RX_IRQ_MSK
, 0);
1785 gma_write16(hw
, port
, GM_TR_IRQ_MSK
, 0);
1787 /* Initialize Mac Fifo */
1789 /* Configure Rx MAC FIFO */
1790 skge_write16(hw
, SK_REG(port
, RX_GMF_FL_MSK
), RX_FF_FL_DEF_MSK
);
1791 reg
= GMF_OPER_ON
| GMF_RX_F_FL_ON
;
1792 if (hw
->chip_id
== CHIP_ID_YUKON_LITE
&&
1793 hw
->chip_rev
>= CHIP_REV_YU_LITE_A3
)
1794 reg
&= ~GMF_RX_F_FL_ON
;
1795 skge_write8(hw
, SK_REG(port
, RX_GMF_CTRL_T
), GMF_RST_CLR
);
1796 skge_write16(hw
, SK_REG(port
, RX_GMF_CTRL_T
), reg
);
1797 skge_write16(hw
, SK_REG(port
, RX_GMF_FL_THR
), RX_GMF_FL_THR_DEF
);
1799 /* Configure Tx MAC FIFO */
1800 skge_write8(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_RST_CLR
);
1801 skge_write16(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_OPER_ON
);
1804 static void yukon_stop(struct skge_port
*skge
)
1806 struct skge_hw
*hw
= skge
->hw
;
1807 int port
= skge
->port
;
1809 if (hw
->chip_id
== CHIP_ID_YUKON_LITE
&&
1810 hw
->chip_rev
>= CHIP_REV_YU_LITE_A3
) {
1811 skge_write32(hw
, B2_GP_IO
,
1812 skge_read32(hw
, B2_GP_IO
) | GP_DIR_9
| GP_IO_9
);
1815 gma_write16(hw
, port
, GM_GP_CTRL
,
1816 gma_read16(hw
, port
, GM_GP_CTRL
)
1817 & ~(GM_GPCR_TX_ENA
|GM_GPCR_RX_ENA
));
1818 gma_read16(hw
, port
, GM_GP_CTRL
);
1820 /* set GPHY Control reset */
1821 gma_write32(hw
, port
, GPHY_CTRL
, GPC_RST_SET
);
1822 gma_write32(hw
, port
, GMAC_CTRL
, GMC_RST_SET
);
1825 static void yukon_get_stats(struct skge_port
*skge
, u64
*data
)
1827 struct skge_hw
*hw
= skge
->hw
;
1828 int port
= skge
->port
;
1831 data
[0] = (u64
) gma_read32(hw
, port
, GM_TXO_OK_HI
) << 32
1832 | gma_read32(hw
, port
, GM_TXO_OK_LO
);
1833 data
[1] = (u64
) gma_read32(hw
, port
, GM_RXO_OK_HI
) << 32
1834 | gma_read32(hw
, port
, GM_RXO_OK_LO
);
1836 for (i
= 2; i
< ARRAY_SIZE(skge_stats
); i
++)
1837 data
[i
] = gma_read32(hw
, port
,
1838 skge_stats
[i
].gma_offset
);
1841 static void yukon_mac_intr(struct skge_hw
*hw
, int port
)
1843 struct net_device
*dev
= hw
->dev
[port
];
1844 struct skge_port
*skge
= netdev_priv(dev
);
1845 u8 status
= skge_read8(hw
, SK_REG(port
, GMAC_IRQ_SRC
));
1847 if (netif_msg_intr(skge
))
1848 printk(KERN_DEBUG PFX
"%s: mac interrupt status 0x%x\n",
1851 if (status
& GM_IS_RX_FF_OR
) {
1852 ++skge
->net_stats
.rx_fifo_errors
;
1853 gma_write8(hw
, port
, RX_GMF_CTRL_T
, GMF_CLI_RX_FO
);
1855 if (status
& GM_IS_TX_FF_UR
) {
1856 ++skge
->net_stats
.tx_fifo_errors
;
1857 gma_write8(hw
, port
, TX_GMF_CTRL_T
, GMF_CLI_TX_FU
);
1862 static u16
yukon_speed(const struct skge_hw
*hw
, u16 aux
)
1864 switch (aux
& PHY_M_PS_SPEED_MSK
) {
1865 case PHY_M_PS_SPEED_1000
:
1867 case PHY_M_PS_SPEED_100
:
1874 static void yukon_link_up(struct skge_port
*skge
)
1876 struct skge_hw
*hw
= skge
->hw
;
1877 int port
= skge
->port
;
1880 pr_debug("yukon_link_up\n");
1882 /* Enable Transmit FIFO Underrun */
1883 skge_write8(hw
, GMAC_IRQ_MSK
, GMAC_DEF_MSK
);
1885 reg
= gma_read16(hw
, port
, GM_GP_CTRL
);
1886 if (skge
->duplex
== DUPLEX_FULL
|| skge
->autoneg
== AUTONEG_ENABLE
)
1887 reg
|= GM_GPCR_DUP_FULL
;
1890 reg
|= GM_GPCR_RX_ENA
| GM_GPCR_TX_ENA
;
1891 gma_write16(hw
, port
, GM_GP_CTRL
, reg
);
1893 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, PHY_M_DEF_MSK
);
1897 static void yukon_link_down(struct skge_port
*skge
)
1899 struct skge_hw
*hw
= skge
->hw
;
1900 int port
= skge
->port
;
1902 pr_debug("yukon_link_down\n");
1903 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, 0);
1904 gm_phy_write(hw
, port
, GM_GP_CTRL
,
1905 gm_phy_read(hw
, port
, GM_GP_CTRL
)
1906 & ~(GM_GPCR_RX_ENA
| GM_GPCR_TX_ENA
));
1908 if (skge
->flow_control
== FLOW_MODE_REM_SEND
) {
1909 /* restore Asymmetric Pause bit */
1910 gm_phy_write(hw
, port
, PHY_MARV_AUNE_ADV
,
1911 gm_phy_read(hw
, port
,
1917 yukon_reset(hw
, port
);
1918 skge_link_down(skge
);
1920 yukon_init(hw
, port
);
1923 static void yukon_phy_intr(struct skge_port
*skge
)
1925 struct skge_hw
*hw
= skge
->hw
;
1926 int port
= skge
->port
;
1927 const char *reason
= NULL
;
1928 u16 istatus
, phystat
;
1930 istatus
= gm_phy_read(hw
, port
, PHY_MARV_INT_STAT
);
1931 phystat
= gm_phy_read(hw
, port
, PHY_MARV_PHY_STAT
);
1933 if (netif_msg_intr(skge
))
1934 printk(KERN_DEBUG PFX
"%s: phy interrupt status 0x%x 0x%x\n",
1935 skge
->netdev
->name
, istatus
, phystat
);
1937 if (istatus
& PHY_M_IS_AN_COMPL
) {
1938 if (gm_phy_read(hw
, port
, PHY_MARV_AUNE_LP
)
1940 reason
= "remote fault";
1944 if (gm_phy_read(hw
, port
, PHY_MARV_1000T_STAT
) & PHY_B_1000S_MSF
) {
1945 reason
= "master/slave fault";
1949 if (!(phystat
& PHY_M_PS_SPDUP_RES
)) {
1950 reason
= "speed/duplex";
1954 skge
->duplex
= (phystat
& PHY_M_PS_FULL_DUP
)
1955 ? DUPLEX_FULL
: DUPLEX_HALF
;
1956 skge
->speed
= yukon_speed(hw
, phystat
);
1958 /* We are using IEEE 802.3z/D5.0 Table 37-4 */
1959 switch (phystat
& PHY_M_PS_PAUSE_MSK
) {
1960 case PHY_M_PS_PAUSE_MSK
:
1961 skge
->flow_control
= FLOW_MODE_SYMMETRIC
;
1963 case PHY_M_PS_RX_P_EN
:
1964 skge
->flow_control
= FLOW_MODE_REM_SEND
;
1966 case PHY_M_PS_TX_P_EN
:
1967 skge
->flow_control
= FLOW_MODE_LOC_SEND
;
1970 skge
->flow_control
= FLOW_MODE_NONE
;
1973 if (skge
->flow_control
== FLOW_MODE_NONE
||
1974 (skge
->speed
< SPEED_1000
&& skge
->duplex
== DUPLEX_HALF
))
1975 skge_write8(hw
, SK_REG(port
, GMAC_CTRL
), GMC_PAUSE_OFF
);
1977 skge_write8(hw
, SK_REG(port
, GMAC_CTRL
), GMC_PAUSE_ON
);
1978 yukon_link_up(skge
);
1982 if (istatus
& PHY_M_IS_LSP_CHANGE
)
1983 skge
->speed
= yukon_speed(hw
, phystat
);
1985 if (istatus
& PHY_M_IS_DUP_CHANGE
)
1986 skge
->duplex
= (phystat
& PHY_M_PS_FULL_DUP
) ? DUPLEX_FULL
: DUPLEX_HALF
;
1987 if (istatus
& PHY_M_IS_LST_CHANGE
) {
1988 if (phystat
& PHY_M_PS_LINK_UP
)
1989 yukon_link_up(skge
);
1991 yukon_link_down(skge
);
1995 printk(KERN_ERR PFX
"%s: autonegotiation failed (%s)\n",
1996 skge
->netdev
->name
, reason
);
1998 /* XXX restart autonegotiation? */
2001 static void skge_ramset(struct skge_hw
*hw
, u16 q
, u32 start
, size_t len
)
2007 end
= start
+ len
- 1;
2009 skge_write8(hw
, RB_ADDR(q
, RB_CTRL
), RB_RST_CLR
);
2010 skge_write32(hw
, RB_ADDR(q
, RB_START
), start
);
2011 skge_write32(hw
, RB_ADDR(q
, RB_WP
), start
);
2012 skge_write32(hw
, RB_ADDR(q
, RB_RP
), start
);
2013 skge_write32(hw
, RB_ADDR(q
, RB_END
), end
);
2015 if (q
== Q_R1
|| q
== Q_R2
) {
2016 /* Set thresholds on receive queue's */
2017 skge_write32(hw
, RB_ADDR(q
, RB_RX_UTPP
),
2019 skge_write32(hw
, RB_ADDR(q
, RB_RX_LTPP
),
2022 /* Enable store & forward on Tx queue's because
2023 * Tx FIFO is only 4K on Genesis and 1K on Yukon
2025 skge_write8(hw
, RB_ADDR(q
, RB_CTRL
), RB_ENA_STFWD
);
2028 skge_write8(hw
, RB_ADDR(q
, RB_CTRL
), RB_ENA_OP_MD
);
2031 /* Setup Bus Memory Interface */
2032 static void skge_qset(struct skge_port
*skge
, u16 q
,
2033 const struct skge_element
*e
)
2035 struct skge_hw
*hw
= skge
->hw
;
2036 u32 watermark
= 0x600;
2037 u64 base
= skge
->dma
+ (e
->desc
- skge
->mem
);
2039 /* optimization to reduce window on 32bit/33mhz */
2040 if ((skge_read16(hw
, B0_CTST
) & (CS_BUS_CLOCK
| CS_BUS_SLOT_SZ
)) == 0)
2043 skge_write32(hw
, Q_ADDR(q
, Q_CSR
), CSR_CLR_RESET
);
2044 skge_write32(hw
, Q_ADDR(q
, Q_F
), watermark
);
2045 skge_write32(hw
, Q_ADDR(q
, Q_DA_H
), (u32
)(base
>> 32));
2046 skge_write32(hw
, Q_ADDR(q
, Q_DA_L
), (u32
)base
);
2049 static int skge_up(struct net_device
*dev
)
2051 struct skge_port
*skge
= netdev_priv(dev
);
2052 struct skge_hw
*hw
= skge
->hw
;
2053 int port
= skge
->port
;
2054 u32 chunk
, ram_addr
;
2055 size_t rx_size
, tx_size
;
2058 if (netif_msg_ifup(skge
))
2059 printk(KERN_INFO PFX
"%s: enabling interface\n", dev
->name
);
2061 if (dev
->mtu
> RX_BUF_SIZE
)
2062 skge
->rx_buf_size
= dev
->mtu
+ ETH_HLEN
+ NET_IP_ALIGN
;
2064 skge
->rx_buf_size
= RX_BUF_SIZE
;
2067 rx_size
= skge
->rx_ring
.count
* sizeof(struct skge_rx_desc
);
2068 tx_size
= skge
->tx_ring
.count
* sizeof(struct skge_tx_desc
);
2069 skge
->mem_size
= tx_size
+ rx_size
;
2070 skge
->mem
= pci_alloc_consistent(hw
->pdev
, skge
->mem_size
, &skge
->dma
);
2074 memset(skge
->mem
, 0, skge
->mem_size
);
2076 if ((err
= skge_ring_alloc(&skge
->rx_ring
, skge
->mem
, skge
->dma
)))
2079 err
= skge_rx_fill(skge
);
2083 if ((err
= skge_ring_alloc(&skge
->tx_ring
, skge
->mem
+ rx_size
,
2084 skge
->dma
+ rx_size
)))
2087 skge
->tx_avail
= skge
->tx_ring
.count
- 1;
2089 /* Enable IRQ from port */
2090 hw
->intr_mask
|= portirqmask
[port
];
2091 skge_write32(hw
, B0_IMSK
, hw
->intr_mask
);
2094 spin_lock_bh(&hw
->phy_lock
);
2095 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2096 genesis_mac_init(hw
, port
);
2098 yukon_mac_init(hw
, port
);
2099 spin_unlock_bh(&hw
->phy_lock
);
2101 /* Configure RAMbuffers */
2102 chunk
= hw
->ram_size
/ ((hw
->ports
+ 1)*2);
2103 ram_addr
= hw
->ram_offset
+ 2 * chunk
* port
;
2105 skge_ramset(hw
, rxqaddr
[port
], ram_addr
, chunk
);
2106 skge_qset(skge
, rxqaddr
[port
], skge
->rx_ring
.to_clean
);
2108 BUG_ON(skge
->tx_ring
.to_use
!= skge
->tx_ring
.to_clean
);
2109 skge_ramset(hw
, txqaddr
[port
], ram_addr
+chunk
, chunk
);
2110 skge_qset(skge
, txqaddr
[port
], skge
->tx_ring
.to_use
);
2112 /* Start receiver BMU */
2114 skge_write8(hw
, Q_ADDR(rxqaddr
[port
], Q_CSR
), CSR_START
| CSR_IRQ_CL_F
);
2116 pr_debug("skge_up completed\n");
2120 skge_rx_clean(skge
);
2121 kfree(skge
->rx_ring
.start
);
2123 pci_free_consistent(hw
->pdev
, skge
->mem_size
, skge
->mem
, skge
->dma
);
2128 static int skge_down(struct net_device
*dev
)
2130 struct skge_port
*skge
= netdev_priv(dev
);
2131 struct skge_hw
*hw
= skge
->hw
;
2132 int port
= skge
->port
;
2134 if (netif_msg_ifdown(skge
))
2135 printk(KERN_INFO PFX
"%s: disabling interface\n", dev
->name
);
2137 netif_stop_queue(dev
);
2139 del_timer_sync(&skge
->led_blink
);
2141 /* Stop transmitter */
2142 skge_write8(hw
, Q_ADDR(txqaddr
[port
], Q_CSR
), CSR_STOP
);
2143 skge_write32(hw
, RB_ADDR(txqaddr
[port
], RB_CTRL
),
2144 RB_RST_SET
|RB_DIS_OP_MD
);
2146 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2151 /* Disable Force Sync bit and Enable Alloc bit */
2152 skge_write8(hw
, SK_REG(port
, TXA_CTRL
),
2153 TXA_DIS_FSYNC
| TXA_DIS_ALLOC
| TXA_STOP_RC
);
2155 /* Stop Interval Timer and Limit Counter of Tx Arbiter */
2156 skge_write32(hw
, SK_REG(port
, TXA_ITI_INI
), 0L);
2157 skge_write32(hw
, SK_REG(port
, TXA_LIM_INI
), 0L);
2159 /* Reset PCI FIFO */
2160 skge_write32(hw
, Q_ADDR(txqaddr
[port
], Q_CSR
), CSR_SET_RESET
);
2161 skge_write32(hw
, RB_ADDR(txqaddr
[port
], RB_CTRL
), RB_RST_SET
);
2163 /* Reset the RAM Buffer async Tx queue */
2164 skge_write8(hw
, RB_ADDR(port
== 0 ? Q_XA1
: Q_XA2
, RB_CTRL
), RB_RST_SET
);
2166 skge_write8(hw
, Q_ADDR(rxqaddr
[port
], Q_CSR
), CSR_STOP
);
2167 skge_write32(hw
, RB_ADDR(port
? Q_R2
: Q_R1
, RB_CTRL
),
2168 RB_RST_SET
|RB_DIS_OP_MD
);
2169 skge_write32(hw
, Q_ADDR(rxqaddr
[port
], Q_CSR
), CSR_SET_RESET
);
2171 if (hw
->chip_id
== CHIP_ID_GENESIS
) {
2172 skge_write8(hw
, SK_REG(port
, TX_MFF_CTRL2
), MFF_RST_SET
);
2173 skge_write8(hw
, SK_REG(port
, RX_MFF_CTRL2
), MFF_RST_SET
);
2174 skge_write8(hw
, SK_REG(port
, TX_LED_CTRL
), LED_STOP
);
2175 skge_write8(hw
, SK_REG(port
, RX_LED_CTRL
), LED_STOP
);
2177 skge_write8(hw
, SK_REG(port
, RX_GMF_CTRL_T
), GMF_RST_SET
);
2178 skge_write8(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_RST_SET
);
2181 /* turn off led's */
2182 skge_write16(hw
, B0_LED
, LED_STAT_OFF
);
2184 skge_tx_clean(skge
);
2185 skge_rx_clean(skge
);
2187 kfree(skge
->rx_ring
.start
);
2188 kfree(skge
->tx_ring
.start
);
2189 pci_free_consistent(hw
->pdev
, skge
->mem_size
, skge
->mem
, skge
->dma
);
2193 static int skge_xmit_frame(struct sk_buff
*skb
, struct net_device
*dev
)
2195 struct skge_port
*skge
= netdev_priv(dev
);
2196 struct skge_hw
*hw
= skge
->hw
;
2197 struct skge_ring
*ring
= &skge
->tx_ring
;
2198 struct skge_element
*e
;
2199 struct skge_tx_desc
*td
;
2203 unsigned long flags
;
2205 skb
= skb_padto(skb
, ETH_ZLEN
);
2207 return NETDEV_TX_OK
;
2209 local_irq_save(flags
);
2210 if (!spin_trylock(&skge
->tx_lock
)) {
2211 /* Collision - tell upper layer to requeue */
2212 local_irq_restore(flags
);
2213 return NETDEV_TX_LOCKED
;
2216 if (unlikely(skge
->tx_avail
< skb_shinfo(skb
)->nr_frags
+1)) {
2217 netif_stop_queue(dev
);
2218 spin_unlock_irqrestore(&skge
->tx_lock
, flags
);
2220 printk(KERN_WARNING PFX
"%s: ring full when queue awake!\n",
2222 return NETDEV_TX_BUSY
;
2228 len
= skb_headlen(skb
);
2229 map
= pci_map_single(hw
->pdev
, skb
->data
, len
, PCI_DMA_TODEVICE
);
2230 pci_unmap_addr_set(e
, mapaddr
, map
);
2231 pci_unmap_len_set(e
, maplen
, len
);
2234 td
->dma_hi
= map
>> 32;
2236 if (skb
->ip_summed
== CHECKSUM_HW
) {
2237 const struct iphdr
*ip
2238 = (const struct iphdr
*) (skb
->data
+ ETH_HLEN
);
2239 int offset
= skb
->h
.raw
- skb
->data
;
2241 /* This seems backwards, but it is what the sk98lin
2242 * does. Looks like hardware is wrong?
2244 if (ip
->protocol
== IPPROTO_UDP
2245 && hw
->chip_rev
== 0 && hw
->chip_id
== CHIP_ID_YUKON
)
2246 control
= BMU_TCP_CHECK
;
2248 control
= BMU_UDP_CHECK
;
2251 td
->csum_start
= offset
;
2252 td
->csum_write
= offset
+ skb
->csum
;
2254 control
= BMU_CHECK
;
2256 if (!skb_shinfo(skb
)->nr_frags
) /* single buffer i.e. no fragments */
2257 control
|= BMU_EOF
| BMU_IRQ_EOF
;
2259 struct skge_tx_desc
*tf
= td
;
2261 control
|= BMU_STFWD
;
2262 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++) {
2263 skb_frag_t
*frag
= &skb_shinfo(skb
)->frags
[i
];
2265 map
= pci_map_page(hw
->pdev
, frag
->page
, frag
->page_offset
,
2266 frag
->size
, PCI_DMA_TODEVICE
);
2272 tf
->dma_hi
= (u64
) map
>> 32;
2273 pci_unmap_addr_set(e
, mapaddr
, map
);
2274 pci_unmap_len_set(e
, maplen
, frag
->size
);
2276 tf
->control
= BMU_OWN
| BMU_SW
| control
| frag
->size
;
2278 tf
->control
|= BMU_EOF
| BMU_IRQ_EOF
;
2280 /* Make sure all the descriptors written */
2282 td
->control
= BMU_OWN
| BMU_SW
| BMU_STF
| control
| len
;
2285 skge_write8(hw
, Q_ADDR(txqaddr
[skge
->port
], Q_CSR
), CSR_START
);
2287 if (netif_msg_tx_queued(skge
))
2288 printk(KERN_DEBUG
"%s: tx queued, slot %td, len %d\n",
2289 dev
->name
, e
- ring
->start
, skb
->len
);
2291 ring
->to_use
= e
->next
;
2292 skge
->tx_avail
-= skb_shinfo(skb
)->nr_frags
+ 1;
2293 if (skge
->tx_avail
<= MAX_SKB_FRAGS
+ 1) {
2294 pr_debug("%s: transmit queue full\n", dev
->name
);
2295 netif_stop_queue(dev
);
2298 dev
->trans_start
= jiffies
;
2299 spin_unlock_irqrestore(&skge
->tx_lock
, flags
);
2301 return NETDEV_TX_OK
;
2304 static inline void skge_tx_free(struct skge_hw
*hw
, struct skge_element
*e
)
2306 /* This ring element can be skb or fragment */
2308 pci_unmap_single(hw
->pdev
,
2309 pci_unmap_addr(e
, mapaddr
),
2310 pci_unmap_len(e
, maplen
),
2312 dev_kfree_skb_any(e
->skb
);
2315 pci_unmap_page(hw
->pdev
,
2316 pci_unmap_addr(e
, mapaddr
),
2317 pci_unmap_len(e
, maplen
),
2322 static void skge_tx_clean(struct skge_port
*skge
)
2324 struct skge_ring
*ring
= &skge
->tx_ring
;
2325 struct skge_element
*e
;
2326 unsigned long flags
;
2328 spin_lock_irqsave(&skge
->tx_lock
, flags
);
2329 for (e
= ring
->to_clean
; e
!= ring
->to_use
; e
= e
->next
) {
2331 skge_tx_free(skge
->hw
, e
);
2334 spin_unlock_irqrestore(&skge
->tx_lock
, flags
);
2337 static void skge_tx_timeout(struct net_device
*dev
)
2339 struct skge_port
*skge
= netdev_priv(dev
);
2341 if (netif_msg_timer(skge
))
2342 printk(KERN_DEBUG PFX
"%s: tx timeout\n", dev
->name
);
2344 skge_write8(skge
->hw
, Q_ADDR(txqaddr
[skge
->port
], Q_CSR
), CSR_STOP
);
2345 skge_tx_clean(skge
);
2348 static int skge_change_mtu(struct net_device
*dev
, int new_mtu
)
2351 int running
= netif_running(dev
);
2353 if (new_mtu
< ETH_ZLEN
|| new_mtu
> ETH_JUMBO_MTU
)
2366 static void genesis_set_multicast(struct net_device
*dev
)
2368 struct skge_port
*skge
= netdev_priv(dev
);
2369 struct skge_hw
*hw
= skge
->hw
;
2370 int port
= skge
->port
;
2371 int i
, count
= dev
->mc_count
;
2372 struct dev_mc_list
*list
= dev
->mc_list
;
2376 pr_debug("genesis_set_multicast flags=%x count=%d\n", dev
->flags
, dev
->mc_count
);
2378 mode
= xm_read32(hw
, port
, XM_MODE
);
2379 mode
|= XM_MD_ENA_HASH
;
2380 if (dev
->flags
& IFF_PROMISC
)
2381 mode
|= XM_MD_ENA_PROM
;
2383 mode
&= ~XM_MD_ENA_PROM
;
2385 if (dev
->flags
& IFF_ALLMULTI
)
2386 memset(filter
, 0xff, sizeof(filter
));
2388 memset(filter
, 0, sizeof(filter
));
2389 for (i
= 0; list
&& i
< count
; i
++, list
= list
->next
) {
2391 crc
= ether_crc_le(ETH_ALEN
, list
->dmi_addr
);
2393 filter
[bit
/8] |= 1 << (bit
%8);
2397 xm_write32(hw
, port
, XM_MODE
, mode
);
2398 xm_outhash(hw
, port
, XM_HSM
, filter
);
2401 static void yukon_set_multicast(struct net_device
*dev
)
2403 struct skge_port
*skge
= netdev_priv(dev
);
2404 struct skge_hw
*hw
= skge
->hw
;
2405 int port
= skge
->port
;
2406 struct dev_mc_list
*list
= dev
->mc_list
;
2410 memset(filter
, 0, sizeof(filter
));
2412 reg
= gma_read16(hw
, port
, GM_RX_CTRL
);
2413 reg
|= GM_RXCR_UCF_ENA
;
2415 if (dev
->flags
& IFF_PROMISC
) /* promiscious */
2416 reg
&= ~(GM_RXCR_UCF_ENA
| GM_RXCR_MCF_ENA
);
2417 else if (dev
->flags
& IFF_ALLMULTI
) /* all multicast */
2418 memset(filter
, 0xff, sizeof(filter
));
2419 else if (dev
->mc_count
== 0) /* no multicast */
2420 reg
&= ~GM_RXCR_MCF_ENA
;
2423 reg
|= GM_RXCR_MCF_ENA
;
2425 for (i
= 0; list
&& i
< dev
->mc_count
; i
++, list
= list
->next
) {
2426 u32 bit
= ether_crc(ETH_ALEN
, list
->dmi_addr
) & 0x3f;
2427 filter
[bit
/8] |= 1 << (bit
%8);
2432 gma_write16(hw
, port
, GM_MC_ADDR_H1
,
2433 (u16
)filter
[0] | ((u16
)filter
[1] << 8));
2434 gma_write16(hw
, port
, GM_MC_ADDR_H2
,
2435 (u16
)filter
[2] | ((u16
)filter
[3] << 8));
2436 gma_write16(hw
, port
, GM_MC_ADDR_H3
,
2437 (u16
)filter
[4] | ((u16
)filter
[5] << 8));
2438 gma_write16(hw
, port
, GM_MC_ADDR_H4
,
2439 (u16
)filter
[6] | ((u16
)filter
[7] << 8));
2441 gma_write16(hw
, port
, GM_RX_CTRL
, reg
);
2444 static inline int bad_phy_status(const struct skge_hw
*hw
, u32 status
)
2446 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2447 return (status
& (XMR_FS_ERR
| XMR_FS_2L_VLAN
)) != 0;
2449 return (status
& GMR_FS_ANY_ERR
) ||
2450 (status
& GMR_FS_RX_OK
) == 0;
2453 static void skge_rx_error(struct skge_port
*skge
, int slot
,
2454 u32 control
, u32 status
)
2456 if (netif_msg_rx_err(skge
))
2457 printk(KERN_DEBUG PFX
"%s: rx err, slot %d control 0x%x status 0x%x\n",
2458 skge
->netdev
->name
, slot
, control
, status
);
2460 if ((control
& (BMU_EOF
|BMU_STF
)) != (BMU_STF
|BMU_EOF
))
2461 skge
->net_stats
.rx_length_errors
++;
2462 else if (skge
->hw
->chip_id
== CHIP_ID_GENESIS
) {
2463 if (status
& (XMR_FS_RUNT
|XMR_FS_LNG_ERR
))
2464 skge
->net_stats
.rx_length_errors
++;
2465 if (status
& XMR_FS_FRA_ERR
)
2466 skge
->net_stats
.rx_frame_errors
++;
2467 if (status
& XMR_FS_FCS_ERR
)
2468 skge
->net_stats
.rx_crc_errors
++;
2470 if (status
& (GMR_FS_LONG_ERR
|GMR_FS_UN_SIZE
))
2471 skge
->net_stats
.rx_length_errors
++;
2472 if (status
& GMR_FS_FRAGMENT
)
2473 skge
->net_stats
.rx_frame_errors
++;
2474 if (status
& GMR_FS_CRC_ERR
)
2475 skge
->net_stats
.rx_crc_errors
++;
2479 /* Get receive buffer from descriptor.
2480 * Handles copy of small buffers and reallocation failures
2482 static inline struct sk_buff
*skge_rx_get(struct skge_port
*skge
,
2483 struct skge_element
*e
,
2486 struct sk_buff
*nskb
, *skb
;
2488 if (len
< RX_COPY_THRESHOLD
) {
2489 nskb
= skge_rx_alloc(skge
->netdev
, len
+ NET_IP_ALIGN
);
2490 if (unlikely(!nskb
))
2493 pci_dma_sync_single_for_cpu(skge
->hw
->pdev
,
2494 pci_unmap_addr(e
, mapaddr
),
2495 len
, PCI_DMA_FROMDEVICE
);
2496 memcpy(nskb
->data
, e
->skb
->data
, len
);
2497 pci_dma_sync_single_for_device(skge
->hw
->pdev
,
2498 pci_unmap_addr(e
, mapaddr
),
2499 len
, PCI_DMA_FROMDEVICE
);
2501 if (skge
->rx_csum
) {
2502 struct skge_rx_desc
*rd
= e
->desc
;
2503 nskb
->csum
= le16_to_cpu(rd
->csum2
);
2504 nskb
->ip_summed
= CHECKSUM_HW
;
2506 skge_rx_reuse(e
, skge
->rx_buf_size
);
2509 nskb
= skge_rx_alloc(skge
->netdev
, skge
->rx_buf_size
);
2510 if (unlikely(!nskb
))
2513 pci_unmap_single(skge
->hw
->pdev
,
2514 pci_unmap_addr(e
, mapaddr
),
2515 pci_unmap_len(e
, maplen
),
2516 PCI_DMA_FROMDEVICE
);
2518 if (skge
->rx_csum
) {
2519 struct skge_rx_desc
*rd
= e
->desc
;
2520 skb
->csum
= le16_to_cpu(rd
->csum2
);
2521 skb
->ip_summed
= CHECKSUM_HW
;
2524 skge_rx_setup(skge
, e
, nskb
, skge
->rx_buf_size
);
2530 static int skge_poll(struct net_device
*dev
, int *budget
)
2532 struct skge_port
*skge
= netdev_priv(dev
);
2533 struct skge_hw
*hw
= skge
->hw
;
2534 struct skge_ring
*ring
= &skge
->rx_ring
;
2535 struct skge_element
*e
;
2536 unsigned int to_do
= min(dev
->quota
, *budget
);
2537 unsigned int work_done
= 0;
2539 pr_debug("skge_poll\n");
2541 for (e
= ring
->to_clean
; work_done
< to_do
; e
= e
->next
) {
2542 struct skge_rx_desc
*rd
= e
->desc
;
2543 struct sk_buff
*skb
;
2544 u32 control
, len
, status
;
2547 control
= rd
->control
;
2548 if (control
& BMU_OWN
)
2551 len
= control
& BMU_BBC
;
2552 status
= rd
->status
;
2554 if (unlikely((control
& (BMU_EOF
|BMU_STF
)) != (BMU_STF
|BMU_EOF
)
2555 || bad_phy_status(hw
, status
))) {
2556 skge_rx_error(skge
, e
- ring
->start
, control
, status
);
2557 skge_rx_reuse(e
, skge
->rx_buf_size
);
2561 if (netif_msg_rx_status(skge
))
2562 printk(KERN_DEBUG PFX
"%s: rx slot %td status 0x%x len %d\n",
2563 dev
->name
, e
- ring
->start
, rd
->status
, len
);
2565 skb
= skge_rx_get(skge
, e
, len
);
2568 skb
->protocol
= eth_type_trans(skb
, dev
);
2570 dev
->last_rx
= jiffies
;
2571 netif_receive_skb(skb
);
2575 skge_rx_reuse(e
, skge
->rx_buf_size
);
2579 /* restart receiver */
2581 skge_write8(hw
, Q_ADDR(rxqaddr
[skge
->port
], Q_CSR
),
2582 CSR_START
| CSR_IRQ_CL_F
);
2584 *budget
-= work_done
;
2585 dev
->quota
-= work_done
;
2587 if (work_done
>= to_do
)
2588 return 1; /* not done */
2590 local_irq_disable();
2591 __netif_rx_complete(dev
);
2592 hw
->intr_mask
|= portirqmask
[skge
->port
];
2593 skge_write32(hw
, B0_IMSK
, hw
->intr_mask
);
2598 static inline void skge_tx_intr(struct net_device
*dev
)
2600 struct skge_port
*skge
= netdev_priv(dev
);
2601 struct skge_hw
*hw
= skge
->hw
;
2602 struct skge_ring
*ring
= &skge
->tx_ring
;
2603 struct skge_element
*e
;
2605 spin_lock(&skge
->tx_lock
);
2606 for (e
= ring
->to_clean
; e
!= ring
->to_use
; e
= e
->next
) {
2607 struct skge_tx_desc
*td
= e
->desc
;
2611 control
= td
->control
;
2612 if (control
& BMU_OWN
)
2615 if (unlikely(netif_msg_tx_done(skge
)))
2616 printk(KERN_DEBUG PFX
"%s: tx done slot %td status 0x%x\n",
2617 dev
->name
, e
- ring
->start
, td
->status
);
2619 skge_tx_free(hw
, e
);
2624 skge_write8(hw
, Q_ADDR(txqaddr
[skge
->port
], Q_CSR
), CSR_IRQ_CL_F
);
2626 if (skge
->tx_avail
> MAX_SKB_FRAGS
+ 1)
2627 netif_wake_queue(dev
);
2629 spin_unlock(&skge
->tx_lock
);
2632 /* Parity errors seem to happen when Genesis is connected to a switch
2633 * with no other ports present. Heartbeat error??
2635 static void skge_mac_parity(struct skge_hw
*hw
, int port
)
2637 struct net_device
*dev
= hw
->dev
[port
];
2640 struct skge_port
*skge
= netdev_priv(dev
);
2641 ++skge
->net_stats
.tx_heartbeat_errors
;
2644 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2645 skge_write16(hw
, SK_REG(port
, TX_MFF_CTRL1
),
2648 /* HW-Bug #8: cleared by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE */
2649 skge_write8(hw
, SK_REG(port
, TX_GMF_CTRL_T
),
2650 (hw
->chip_id
== CHIP_ID_YUKON
&& hw
->chip_rev
== 0)
2651 ? GMF_CLI_TX_FC
: GMF_CLI_TX_PE
);
2654 static void skge_pci_clear(struct skge_hw
*hw
)
2658 pci_read_config_word(hw
->pdev
, PCI_STATUS
, &status
);
2659 skge_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_ON
);
2660 pci_write_config_word(hw
->pdev
, PCI_STATUS
,
2661 status
| PCI_STATUS_ERROR_BITS
);
2662 skge_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_OFF
);
2665 static void skge_mac_intr(struct skge_hw
*hw
, int port
)
2667 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2668 genesis_mac_intr(hw
, port
);
2670 yukon_mac_intr(hw
, port
);
2673 /* Handle device specific framing and timeout interrupts */
2674 static void skge_error_irq(struct skge_hw
*hw
)
2676 u32 hwstatus
= skge_read32(hw
, B0_HWE_ISRC
);
2678 if (hw
->chip_id
== CHIP_ID_GENESIS
) {
2679 /* clear xmac errors */
2680 if (hwstatus
& (IS_NO_STAT_M1
|IS_NO_TIST_M1
))
2681 skge_write16(hw
, SK_REG(0, RX_MFF_CTRL1
), MFF_CLR_INSTAT
);
2682 if (hwstatus
& (IS_NO_STAT_M2
|IS_NO_TIST_M2
))
2683 skge_write16(hw
, SK_REG(0, RX_MFF_CTRL2
), MFF_CLR_INSTAT
);
2685 /* Timestamp (unused) overflow */
2686 if (hwstatus
& IS_IRQ_TIST_OV
)
2687 skge_write8(hw
, GMAC_TI_ST_CTRL
, GMT_ST_CLR_IRQ
);
2689 if (hwstatus
& IS_IRQ_SENSOR
) {
2690 /* no sensors on 32-bit Yukon */
2691 if (!(skge_read16(hw
, B0_CTST
) & CS_BUS_SLOT_SZ
)) {
2692 printk(KERN_ERR PFX
"ignoring bogus sensor interrups\n");
2693 skge_write32(hw
, B0_HWE_IMSK
,
2694 IS_ERR_MSK
& ~IS_IRQ_SENSOR
);
2696 printk(KERN_WARNING PFX
"sensor interrupt\n");
2702 if (hwstatus
& IS_RAM_RD_PAR
) {
2703 printk(KERN_ERR PFX
"Ram read data parity error\n");
2704 skge_write16(hw
, B3_RI_CTRL
, RI_CLR_RD_PERR
);
2707 if (hwstatus
& IS_RAM_WR_PAR
) {
2708 printk(KERN_ERR PFX
"Ram write data parity error\n");
2709 skge_write16(hw
, B3_RI_CTRL
, RI_CLR_WR_PERR
);
2712 if (hwstatus
& IS_M1_PAR_ERR
)
2713 skge_mac_parity(hw
, 0);
2715 if (hwstatus
& IS_M2_PAR_ERR
)
2716 skge_mac_parity(hw
, 1);
2718 if (hwstatus
& IS_R1_PAR_ERR
)
2719 skge_write32(hw
, B0_R1_CSR
, CSR_IRQ_CL_P
);
2721 if (hwstatus
& IS_R2_PAR_ERR
)
2722 skge_write32(hw
, B0_R2_CSR
, CSR_IRQ_CL_P
);
2724 if (hwstatus
& (IS_IRQ_MST_ERR
|IS_IRQ_STAT
)) {
2725 printk(KERN_ERR PFX
"hardware error detected (status 0x%x)\n",
2730 hwstatus
= skge_read32(hw
, B0_HWE_ISRC
);
2731 if (hwstatus
& IS_IRQ_STAT
) {
2732 printk(KERN_WARNING PFX
"IRQ status %x: still set ignoring hardware errors\n",
2734 hw
->intr_mask
&= ~IS_HW_ERR
;
2740 * Interrrupt from PHY are handled in tasklet (soft irq)
2741 * because accessing phy registers requires spin wait which might
2742 * cause excess interrupt latency.
2744 static void skge_extirq(unsigned long data
)
2746 struct skge_hw
*hw
= (struct skge_hw
*) data
;
2749 spin_lock(&hw
->phy_lock
);
2750 for (port
= 0; port
< 2; port
++) {
2751 struct net_device
*dev
= hw
->dev
[port
];
2753 if (dev
&& netif_running(dev
)) {
2754 struct skge_port
*skge
= netdev_priv(dev
);
2756 if (hw
->chip_id
!= CHIP_ID_GENESIS
)
2757 yukon_phy_intr(skge
);
2759 bcom_phy_intr(skge
);
2762 spin_unlock(&hw
->phy_lock
);
2764 local_irq_disable();
2765 hw
->intr_mask
|= IS_EXT_REG
;
2766 skge_write32(hw
, B0_IMSK
, hw
->intr_mask
);
2770 static irqreturn_t
skge_intr(int irq
, void *dev_id
, struct pt_regs
*regs
)
2772 struct skge_hw
*hw
= dev_id
;
2773 u32 status
= skge_read32(hw
, B0_SP_ISRC
);
2775 if (status
== 0 || status
== ~0) /* hotplug or shared irq */
2778 status
&= hw
->intr_mask
;
2779 if (status
& IS_R1_F
) {
2780 hw
->intr_mask
&= ~IS_R1_F
;
2781 netif_rx_schedule(hw
->dev
[0]);
2784 if (status
& IS_R2_F
) {
2785 hw
->intr_mask
&= ~IS_R2_F
;
2786 netif_rx_schedule(hw
->dev
[1]);
2789 if (status
& IS_XA1_F
)
2790 skge_tx_intr(hw
->dev
[0]);
2792 if (status
& IS_XA2_F
)
2793 skge_tx_intr(hw
->dev
[1]);
2795 if (status
& IS_PA_TO_RX1
) {
2796 struct skge_port
*skge
= netdev_priv(hw
->dev
[0]);
2797 ++skge
->net_stats
.rx_over_errors
;
2798 skge_write16(hw
, B3_PA_CTRL
, PA_CLR_TO_RX1
);
2801 if (status
& IS_PA_TO_RX2
) {
2802 struct skge_port
*skge
= netdev_priv(hw
->dev
[1]);
2803 ++skge
->net_stats
.rx_over_errors
;
2804 skge_write16(hw
, B3_PA_CTRL
, PA_CLR_TO_RX2
);
2807 if (status
& IS_PA_TO_TX1
)
2808 skge_write16(hw
, B3_PA_CTRL
, PA_CLR_TO_TX1
);
2810 if (status
& IS_PA_TO_TX2
)
2811 skge_write16(hw
, B3_PA_CTRL
, PA_CLR_TO_TX2
);
2813 if (status
& IS_MAC1
)
2814 skge_mac_intr(hw
, 0);
2816 if (status
& IS_MAC2
)
2817 skge_mac_intr(hw
, 1);
2819 if (status
& IS_HW_ERR
)
2822 if (status
& IS_EXT_REG
) {
2823 hw
->intr_mask
&= ~IS_EXT_REG
;
2824 tasklet_schedule(&hw
->ext_tasklet
);
2827 skge_write32(hw
, B0_IMSK
, hw
->intr_mask
);
2832 #ifdef CONFIG_NET_POLL_CONTROLLER
2833 static void skge_netpoll(struct net_device
*dev
)
2835 struct skge_port
*skge
= netdev_priv(dev
);
2837 disable_irq(dev
->irq
);
2838 skge_intr(dev
->irq
, skge
->hw
, NULL
);
2839 enable_irq(dev
->irq
);
2843 static int skge_set_mac_address(struct net_device
*dev
, void *p
)
2845 struct skge_port
*skge
= netdev_priv(dev
);
2846 struct sockaddr
*addr
= p
;
2849 if (!is_valid_ether_addr(addr
->sa_data
))
2850 return -EADDRNOTAVAIL
;
2853 memcpy(dev
->dev_addr
, addr
->sa_data
, ETH_ALEN
);
2854 memcpy_toio(skge
->hw
->regs
+ B2_MAC_1
+ skge
->port
*8,
2855 dev
->dev_addr
, ETH_ALEN
);
2856 memcpy_toio(skge
->hw
->regs
+ B2_MAC_2
+ skge
->port
*8,
2857 dev
->dev_addr
, ETH_ALEN
);
2858 if (dev
->flags
& IFF_UP
)
2863 static const struct {
2867 { CHIP_ID_GENESIS
, "Genesis" },
2868 { CHIP_ID_YUKON
, "Yukon" },
2869 { CHIP_ID_YUKON_LITE
, "Yukon-Lite"},
2870 { CHIP_ID_YUKON_LP
, "Yukon-LP"},
2873 static const char *skge_board_name(const struct skge_hw
*hw
)
2876 static char buf
[16];
2878 for (i
= 0; i
< ARRAY_SIZE(skge_chips
); i
++)
2879 if (skge_chips
[i
].id
== hw
->chip_id
)
2880 return skge_chips
[i
].name
;
2882 snprintf(buf
, sizeof buf
, "chipid 0x%x", hw
->chip_id
);
2888 * Setup the board data structure, but don't bring up
2891 static int skge_reset(struct skge_hw
*hw
)
2897 ctst
= skge_read16(hw
, B0_CTST
);
2900 skge_write8(hw
, B0_CTST
, CS_RST_SET
);
2901 skge_write8(hw
, B0_CTST
, CS_RST_CLR
);
2903 /* clear PCI errors, if any */
2906 skge_write8(hw
, B0_CTST
, CS_MRST_CLR
);
2908 /* restore CLK_RUN bits (for Yukon-Lite) */
2909 skge_write16(hw
, B0_CTST
,
2910 ctst
& (CS_CLK_RUN_HOT
|CS_CLK_RUN_RST
|CS_CLK_RUN_ENA
));
2912 hw
->chip_id
= skge_read8(hw
, B2_CHIP_ID
);
2913 hw
->phy_type
= skge_read8(hw
, B2_E_1
) & 0xf;
2914 hw
->pmd_type
= skge_read8(hw
, B2_PMD_TYP
);
2916 switch (hw
->chip_id
) {
2917 case CHIP_ID_GENESIS
:
2918 switch (hw
->phy_type
) {
2920 hw
->phy_addr
= PHY_ADDR_BCOM
;
2923 printk(KERN_ERR PFX
"%s: unsupported phy type 0x%x\n",
2924 pci_name(hw
->pdev
), hw
->phy_type
);
2930 case CHIP_ID_YUKON_LITE
:
2931 case CHIP_ID_YUKON_LP
:
2932 if (hw
->phy_type
< SK_PHY_MARV_COPPER
&& hw
->pmd_type
!= 'S')
2933 hw
->phy_type
= SK_PHY_MARV_COPPER
;
2935 hw
->phy_addr
= PHY_ADDR_MARV
;
2937 hw
->phy_type
= SK_PHY_MARV_FIBER
;
2942 printk(KERN_ERR PFX
"%s: unsupported chip type 0x%x\n",
2943 pci_name(hw
->pdev
), hw
->chip_id
);
2947 mac_cfg
= skge_read8(hw
, B2_MAC_CFG
);
2948 hw
->ports
= (mac_cfg
& CFG_SNG_MAC
) ? 1 : 2;
2949 hw
->chip_rev
= (mac_cfg
& CFG_CHIP_R_MSK
) >> 4;
2951 /* read the adapters RAM size */
2952 t8
= skge_read8(hw
, B2_E_0
);
2953 if (hw
->chip_id
== CHIP_ID_GENESIS
) {
2955 /* special case: 4 x 64k x 36, offset = 0x80000 */
2956 hw
->ram_size
= 0x100000;
2957 hw
->ram_offset
= 0x80000;
2959 hw
->ram_size
= t8
* 512;
2962 hw
->ram_size
= 0x20000;
2964 hw
->ram_size
= t8
* 4096;
2966 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2969 /* switch power to VCC (WA for VAUX problem) */
2970 skge_write8(hw
, B0_POWER_CTRL
,
2971 PC_VAUX_ENA
| PC_VCC_ENA
| PC_VAUX_OFF
| PC_VCC_ON
);
2972 for (i
= 0; i
< hw
->ports
; i
++) {
2973 skge_write16(hw
, SK_REG(i
, GMAC_LINK_CTRL
), GMLC_RST_SET
);
2974 skge_write16(hw
, SK_REG(i
, GMAC_LINK_CTRL
), GMLC_RST_CLR
);
2978 /* turn off hardware timer (unused) */
2979 skge_write8(hw
, B2_TI_CTRL
, TIM_STOP
);
2980 skge_write8(hw
, B2_TI_CTRL
, TIM_CLR_IRQ
);
2981 skge_write8(hw
, B0_LED
, LED_STAT_ON
);
2983 /* enable the Tx Arbiters */
2984 for (i
= 0; i
< hw
->ports
; i
++)
2985 skge_write8(hw
, SK_REG(i
, TXA_CTRL
), TXA_ENA_ARB
);
2987 /* Initialize ram interface */
2988 skge_write16(hw
, B3_RI_CTRL
, RI_RST_CLR
);
2990 skge_write8(hw
, B3_RI_WTO_R1
, SK_RI_TO_53
);
2991 skge_write8(hw
, B3_RI_WTO_XA1
, SK_RI_TO_53
);
2992 skge_write8(hw
, B3_RI_WTO_XS1
, SK_RI_TO_53
);
2993 skge_write8(hw
, B3_RI_RTO_R1
, SK_RI_TO_53
);
2994 skge_write8(hw
, B3_RI_RTO_XA1
, SK_RI_TO_53
);
2995 skge_write8(hw
, B3_RI_RTO_XS1
, SK_RI_TO_53
);
2996 skge_write8(hw
, B3_RI_WTO_R2
, SK_RI_TO_53
);
2997 skge_write8(hw
, B3_RI_WTO_XA2
, SK_RI_TO_53
);
2998 skge_write8(hw
, B3_RI_WTO_XS2
, SK_RI_TO_53
);
2999 skge_write8(hw
, B3_RI_RTO_R2
, SK_RI_TO_53
);
3000 skge_write8(hw
, B3_RI_RTO_XA2
, SK_RI_TO_53
);
3001 skge_write8(hw
, B3_RI_RTO_XS2
, SK_RI_TO_53
);
3003 skge_write32(hw
, B0_HWE_IMSK
, IS_ERR_MSK
);
3005 /* Set interrupt moderation for Transmit only
3006 * Receive interrupts avoided by NAPI
3008 skge_write32(hw
, B2_IRQM_MSK
, IS_XA1_F
|IS_XA2_F
);
3009 skge_write32(hw
, B2_IRQM_INI
, skge_usecs2clk(hw
, 100));
3010 skge_write32(hw
, B2_IRQM_CTRL
, TIM_START
);
3012 hw
->intr_mask
= IS_HW_ERR
| IS_EXT_REG
;
3013 skge_write32(hw
, B0_IMSK
, hw
->intr_mask
);
3015 if (hw
->chip_id
!= CHIP_ID_GENESIS
)
3016 skge_write8(hw
, GMAC_IRQ_MSK
, 0);
3018 spin_lock_bh(&hw
->phy_lock
);
3019 for (i
= 0; i
< hw
->ports
; i
++) {
3020 if (hw
->chip_id
== CHIP_ID_GENESIS
)
3021 genesis_reset(hw
, i
);
3025 spin_unlock_bh(&hw
->phy_lock
);
3030 /* Initialize network device */
3031 static struct net_device
*skge_devinit(struct skge_hw
*hw
, int port
,
3034 struct skge_port
*skge
;
3035 struct net_device
*dev
= alloc_etherdev(sizeof(*skge
));
3038 printk(KERN_ERR
"skge etherdev alloc failed");
3042 SET_MODULE_OWNER(dev
);
3043 SET_NETDEV_DEV(dev
, &hw
->pdev
->dev
);
3044 dev
->open
= skge_up
;
3045 dev
->stop
= skge_down
;
3046 dev
->hard_start_xmit
= skge_xmit_frame
;
3047 dev
->get_stats
= skge_get_stats
;
3048 if (hw
->chip_id
== CHIP_ID_GENESIS
)
3049 dev
->set_multicast_list
= genesis_set_multicast
;
3051 dev
->set_multicast_list
= yukon_set_multicast
;
3053 dev
->set_mac_address
= skge_set_mac_address
;
3054 dev
->change_mtu
= skge_change_mtu
;
3055 SET_ETHTOOL_OPS(dev
, &skge_ethtool_ops
);
3056 dev
->tx_timeout
= skge_tx_timeout
;
3057 dev
->watchdog_timeo
= TX_WATCHDOG
;
3058 dev
->poll
= skge_poll
;
3059 dev
->weight
= NAPI_WEIGHT
;
3060 #ifdef CONFIG_NET_POLL_CONTROLLER
3061 dev
->poll_controller
= skge_netpoll
;
3063 dev
->irq
= hw
->pdev
->irq
;
3064 dev
->features
= NETIF_F_LLTX
;
3066 dev
->features
|= NETIF_F_HIGHDMA
;
3068 skge
= netdev_priv(dev
);
3071 skge
->msg_enable
= netif_msg_init(debug
, default_msg
);
3072 skge
->tx_ring
.count
= DEFAULT_TX_RING_SIZE
;
3073 skge
->rx_ring
.count
= DEFAULT_RX_RING_SIZE
;
3075 /* Auto speed and flow control */
3076 skge
->autoneg
= AUTONEG_ENABLE
;
3077 skge
->flow_control
= FLOW_MODE_SYMMETRIC
;
3080 skge
->advertising
= skge_supported_modes(hw
);
3082 hw
->dev
[port
] = dev
;
3086 spin_lock_init(&skge
->tx_lock
);
3088 init_timer(&skge
->led_blink
);
3089 skge
->led_blink
.function
= skge_blink_timer
;
3090 skge
->led_blink
.data
= (unsigned long) skge
;
3092 if (hw
->chip_id
!= CHIP_ID_GENESIS
) {
3093 dev
->features
|= NETIF_F_IP_CSUM
| NETIF_F_SG
;
3097 /* read the mac address */
3098 memcpy_fromio(dev
->dev_addr
, hw
->regs
+ B2_MAC_1
+ port
*8, ETH_ALEN
);
3100 /* device is off until link detection */
3101 netif_carrier_off(dev
);
3102 netif_stop_queue(dev
);
3107 static void __devinit
skge_show_addr(struct net_device
*dev
)
3109 const struct skge_port
*skge
= netdev_priv(dev
);
3111 if (netif_msg_probe(skge
))
3112 printk(KERN_INFO PFX
"%s: addr %02x:%02x:%02x:%02x:%02x:%02x\n",
3114 dev
->dev_addr
[0], dev
->dev_addr
[1], dev
->dev_addr
[2],
3115 dev
->dev_addr
[3], dev
->dev_addr
[4], dev
->dev_addr
[5]);
3118 static int __devinit
skge_probe(struct pci_dev
*pdev
,
3119 const struct pci_device_id
*ent
)
3121 struct net_device
*dev
, *dev1
;
3123 int err
, using_dac
= 0;
3125 if ((err
= pci_enable_device(pdev
))) {
3126 printk(KERN_ERR PFX
"%s cannot enable PCI device\n",
3131 if ((err
= pci_request_regions(pdev
, DRV_NAME
))) {
3132 printk(KERN_ERR PFX
"%s cannot obtain PCI resources\n",
3134 goto err_out_disable_pdev
;
3137 pci_set_master(pdev
);
3139 if (!(err
= pci_set_dma_mask(pdev
, DMA_64BIT_MASK
)))
3141 else if (!(err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
))) {
3142 printk(KERN_ERR PFX
"%s no usable DMA configuration\n",
3144 goto err_out_free_regions
;
3148 /* byte swap decriptors in hardware */
3152 pci_read_config_dword(pdev
, PCI_DEV_REG2
, ®
);
3153 reg
|= PCI_REV_DESC
;
3154 pci_write_config_dword(pdev
, PCI_DEV_REG2
, reg
);
3159 hw
= kmalloc(sizeof(*hw
), GFP_KERNEL
);
3161 printk(KERN_ERR PFX
"%s: cannot allocate hardware struct\n",
3163 goto err_out_free_regions
;
3166 memset(hw
, 0, sizeof(*hw
));
3168 spin_lock_init(&hw
->phy_lock
);
3169 tasklet_init(&hw
->ext_tasklet
, skge_extirq
, (unsigned long) hw
);
3171 hw
->regs
= ioremap_nocache(pci_resource_start(pdev
, 0), 0x4000);
3173 printk(KERN_ERR PFX
"%s: cannot map device registers\n",
3175 goto err_out_free_hw
;
3178 if ((err
= request_irq(pdev
->irq
, skge_intr
, SA_SHIRQ
, DRV_NAME
, hw
))) {
3179 printk(KERN_ERR PFX
"%s: cannot assign irq %d\n",
3180 pci_name(pdev
), pdev
->irq
);
3181 goto err_out_iounmap
;
3183 pci_set_drvdata(pdev
, hw
);
3185 err
= skge_reset(hw
);
3187 goto err_out_free_irq
;
3189 printk(KERN_INFO PFX
"addr 0x%lx irq %d chip %s rev %d\n",
3190 pci_resource_start(pdev
, 0), pdev
->irq
,
3191 skge_board_name(hw
), hw
->chip_rev
);
3193 if ((dev
= skge_devinit(hw
, 0, using_dac
)) == NULL
)
3194 goto err_out_led_off
;
3196 if ((err
= register_netdev(dev
))) {
3197 printk(KERN_ERR PFX
"%s: cannot register net device\n",
3199 goto err_out_free_netdev
;
3202 skge_show_addr(dev
);
3204 if (hw
->ports
> 1 && (dev1
= skge_devinit(hw
, 1, using_dac
))) {
3205 if (register_netdev(dev1
) == 0)
3206 skge_show_addr(dev1
);
3208 /* Failure to register second port need not be fatal */
3209 printk(KERN_WARNING PFX
"register of second port failed\n");
3217 err_out_free_netdev
:
3220 skge_write16(hw
, B0_LED
, LED_STAT_OFF
);
3222 free_irq(pdev
->irq
, hw
);
3227 err_out_free_regions
:
3228 pci_release_regions(pdev
);
3229 err_out_disable_pdev
:
3230 pci_disable_device(pdev
);
3231 pci_set_drvdata(pdev
, NULL
);
3236 static void __devexit
skge_remove(struct pci_dev
*pdev
)
3238 struct skge_hw
*hw
= pci_get_drvdata(pdev
);
3239 struct net_device
*dev0
, *dev1
;
3244 if ((dev1
= hw
->dev
[1]))
3245 unregister_netdev(dev1
);
3247 unregister_netdev(dev0
);
3249 tasklet_kill(&hw
->ext_tasklet
);
3251 free_irq(pdev
->irq
, hw
);
3252 pci_release_regions(pdev
);
3253 pci_disable_device(pdev
);
3257 skge_write16(hw
, B0_LED
, LED_STAT_OFF
);
3260 pci_set_drvdata(pdev
, NULL
);
3264 static int skge_suspend(struct pci_dev
*pdev
, pm_message_t state
)
3266 struct skge_hw
*hw
= pci_get_drvdata(pdev
);
3269 for (i
= 0; i
< 2; i
++) {
3270 struct net_device
*dev
= hw
->dev
[i
];
3273 struct skge_port
*skge
= netdev_priv(dev
);
3274 if (netif_running(dev
)) {
3275 netif_carrier_off(dev
);
3278 netif_device_detach(dev
);
3283 pci_save_state(pdev
);
3284 pci_enable_wake(pdev
, pci_choose_state(pdev
, state
), wol
);
3285 pci_disable_device(pdev
);
3286 pci_set_power_state(pdev
, pci_choose_state(pdev
, state
));
3291 static int skge_resume(struct pci_dev
*pdev
)
3293 struct skge_hw
*hw
= pci_get_drvdata(pdev
);
3296 pci_set_power_state(pdev
, PCI_D0
);
3297 pci_restore_state(pdev
);
3298 pci_enable_wake(pdev
, PCI_D0
, 0);
3302 for (i
= 0; i
< 2; i
++) {
3303 struct net_device
*dev
= hw
->dev
[i
];
3305 netif_device_attach(dev
);
3306 if (netif_running(dev
))
3314 static struct pci_driver skge_driver
= {
3316 .id_table
= skge_id_table
,
3317 .probe
= skge_probe
,
3318 .remove
= __devexit_p(skge_remove
),
3320 .suspend
= skge_suspend
,
3321 .resume
= skge_resume
,
3325 static int __init
skge_init_module(void)
3327 return pci_module_init(&skge_driver
);
3330 static void __exit
skge_cleanup_module(void)
3332 pci_unregister_driver(&skge_driver
);
3335 module_init(skge_init_module
);
3336 module_exit(skge_cleanup_module
);