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 "1.6"
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 TX_LOW_WATER (MAX_SKB_FRAGS + 1)
54 #define MAX_RX_RING_SIZE 4096
55 #define RX_COPY_THRESHOLD 128
56 #define RX_BUF_SIZE 1536
57 #define PHY_RETRIES 1000
58 #define ETH_JUMBO_MTU 9000
59 #define TX_WATCHDOG (5 * HZ)
60 #define NAPI_WEIGHT 64
63 MODULE_DESCRIPTION("SysKonnect Gigabit Ethernet driver");
64 MODULE_AUTHOR("Stephen Hemminger <shemminger@osdl.org>");
65 MODULE_LICENSE("GPL");
66 MODULE_VERSION(DRV_VERSION
);
68 static const u32 default_msg
69 = NETIF_MSG_DRV
| NETIF_MSG_PROBE
| NETIF_MSG_LINK
70 | NETIF_MSG_IFUP
| NETIF_MSG_IFDOWN
;
72 static int debug
= -1; /* defaults above */
73 module_param(debug
, int, 0);
74 MODULE_PARM_DESC(debug
, "Debug level (0=none,...,16=all)");
76 static const struct pci_device_id skge_id_table
[] = {
77 { PCI_DEVICE(PCI_VENDOR_ID_3COM
, PCI_DEVICE_ID_3COM_3C940
) },
78 { PCI_DEVICE(PCI_VENDOR_ID_3COM
, PCI_DEVICE_ID_3COM_3C940B
) },
79 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT
, PCI_DEVICE_ID_SYSKONNECT_GE
) },
80 { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT
, PCI_DEVICE_ID_SYSKONNECT_YU
) },
81 { PCI_DEVICE(PCI_VENDOR_ID_DLINK
, PCI_DEVICE_ID_DLINK_DGE510T
), },
82 { PCI_DEVICE(PCI_VENDOR_ID_DLINK
, 0x4b01) }, /* DGE-530T */
83 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x4320) },
84 { PCI_DEVICE(PCI_VENDOR_ID_MARVELL
, 0x5005) }, /* Belkin */
85 { PCI_DEVICE(PCI_VENDOR_ID_CNET
, PCI_DEVICE_ID_CNET_GIGACARD
) },
86 { PCI_DEVICE(PCI_VENDOR_ID_LINKSYS
, PCI_DEVICE_ID_LINKSYS_EG1064
) },
87 { PCI_VENDOR_ID_LINKSYS
, 0x1032, PCI_ANY_ID
, 0x0015, },
90 MODULE_DEVICE_TABLE(pci
, skge_id_table
);
92 static int skge_up(struct net_device
*dev
);
93 static int skge_down(struct net_device
*dev
);
94 static void skge_phy_reset(struct skge_port
*skge
);
95 static void skge_tx_clean(struct skge_port
*skge
);
96 static int xm_phy_write(struct skge_hw
*hw
, int port
, u16 reg
, u16 val
);
97 static int gm_phy_write(struct skge_hw
*hw
, int port
, u16 reg
, u16 val
);
98 static void genesis_get_stats(struct skge_port
*skge
, u64
*data
);
99 static void yukon_get_stats(struct skge_port
*skge
, u64
*data
);
100 static void yukon_init(struct skge_hw
*hw
, int port
);
101 static void genesis_mac_init(struct skge_hw
*hw
, int port
);
102 static void genesis_link_up(struct skge_port
*skge
);
104 /* Avoid conditionals by using array */
105 static const int txqaddr
[] = { Q_XA1
, Q_XA2
};
106 static const int rxqaddr
[] = { Q_R1
, Q_R2
};
107 static const u32 rxirqmask
[] = { IS_R1_F
, IS_R2_F
};
108 static const u32 txirqmask
[] = { IS_XA1_F
, IS_XA2_F
};
110 static int skge_get_regs_len(struct net_device
*dev
)
116 * Returns copy of whole control register region
117 * Note: skip RAM address register because accessing it will
120 static void skge_get_regs(struct net_device
*dev
, struct ethtool_regs
*regs
,
123 const struct skge_port
*skge
= netdev_priv(dev
);
124 const void __iomem
*io
= skge
->hw
->regs
;
127 memset(p
, 0, regs
->len
);
128 memcpy_fromio(p
, io
, B3_RAM_ADDR
);
130 memcpy_fromio(p
+ B3_RI_WTO_R1
, io
+ B3_RI_WTO_R1
,
131 regs
->len
- B3_RI_WTO_R1
);
134 /* Wake on Lan only supported on Yukon chips with rev 1 or above */
135 static int wol_supported(const struct skge_hw
*hw
)
137 return !((hw
->chip_id
== CHIP_ID_GENESIS
||
138 (hw
->chip_id
== CHIP_ID_YUKON
&& hw
->chip_rev
== 0)));
141 static void skge_get_wol(struct net_device
*dev
, struct ethtool_wolinfo
*wol
)
143 struct skge_port
*skge
= netdev_priv(dev
);
145 wol
->supported
= wol_supported(skge
->hw
) ? WAKE_MAGIC
: 0;
146 wol
->wolopts
= skge
->wol
? WAKE_MAGIC
: 0;
149 static int skge_set_wol(struct net_device
*dev
, struct ethtool_wolinfo
*wol
)
151 struct skge_port
*skge
= netdev_priv(dev
);
152 struct skge_hw
*hw
= skge
->hw
;
154 if (wol
->wolopts
!= WAKE_MAGIC
&& wol
->wolopts
!= 0)
157 if (wol
->wolopts
== WAKE_MAGIC
&& !wol_supported(hw
))
160 skge
->wol
= wol
->wolopts
== WAKE_MAGIC
;
163 memcpy_toio(hw
->regs
+ WOL_MAC_ADDR
, dev
->dev_addr
, ETH_ALEN
);
165 skge_write16(hw
, WOL_CTRL_STAT
,
166 WOL_CTL_ENA_PME_ON_MAGIC_PKT
|
167 WOL_CTL_ENA_MAGIC_PKT_UNIT
);
169 skge_write16(hw
, WOL_CTRL_STAT
, WOL_CTL_DEFAULT
);
174 /* Determine supported/advertised modes based on hardware.
175 * Note: ethtool ADVERTISED_xxx == SUPPORTED_xxx
177 static u32
skge_supported_modes(const struct skge_hw
*hw
)
182 supported
= SUPPORTED_10baseT_Half
183 | SUPPORTED_10baseT_Full
184 | SUPPORTED_100baseT_Half
185 | SUPPORTED_100baseT_Full
186 | SUPPORTED_1000baseT_Half
187 | SUPPORTED_1000baseT_Full
188 | SUPPORTED_Autoneg
| SUPPORTED_TP
;
190 if (hw
->chip_id
== CHIP_ID_GENESIS
)
191 supported
&= ~(SUPPORTED_10baseT_Half
192 | SUPPORTED_10baseT_Full
193 | SUPPORTED_100baseT_Half
194 | SUPPORTED_100baseT_Full
);
196 else if (hw
->chip_id
== CHIP_ID_YUKON
)
197 supported
&= ~SUPPORTED_1000baseT_Half
;
199 supported
= SUPPORTED_1000baseT_Full
| SUPPORTED_FIBRE
205 static int skge_get_settings(struct net_device
*dev
,
206 struct ethtool_cmd
*ecmd
)
208 struct skge_port
*skge
= netdev_priv(dev
);
209 struct skge_hw
*hw
= skge
->hw
;
211 ecmd
->transceiver
= XCVR_INTERNAL
;
212 ecmd
->supported
= skge_supported_modes(hw
);
215 ecmd
->port
= PORT_TP
;
216 ecmd
->phy_address
= hw
->phy_addr
;
218 ecmd
->port
= PORT_FIBRE
;
220 ecmd
->advertising
= skge
->advertising
;
221 ecmd
->autoneg
= skge
->autoneg
;
222 ecmd
->speed
= skge
->speed
;
223 ecmd
->duplex
= skge
->duplex
;
227 static int skge_set_settings(struct net_device
*dev
, struct ethtool_cmd
*ecmd
)
229 struct skge_port
*skge
= netdev_priv(dev
);
230 const struct skge_hw
*hw
= skge
->hw
;
231 u32 supported
= skge_supported_modes(hw
);
233 if (ecmd
->autoneg
== AUTONEG_ENABLE
) {
234 ecmd
->advertising
= supported
;
240 switch (ecmd
->speed
) {
242 if (ecmd
->duplex
== DUPLEX_FULL
)
243 setting
= SUPPORTED_1000baseT_Full
;
244 else if (ecmd
->duplex
== DUPLEX_HALF
)
245 setting
= SUPPORTED_1000baseT_Half
;
250 if (ecmd
->duplex
== DUPLEX_FULL
)
251 setting
= SUPPORTED_100baseT_Full
;
252 else if (ecmd
->duplex
== DUPLEX_HALF
)
253 setting
= SUPPORTED_100baseT_Half
;
259 if (ecmd
->duplex
== DUPLEX_FULL
)
260 setting
= SUPPORTED_10baseT_Full
;
261 else if (ecmd
->duplex
== DUPLEX_HALF
)
262 setting
= SUPPORTED_10baseT_Half
;
270 if ((setting
& supported
) == 0)
273 skge
->speed
= ecmd
->speed
;
274 skge
->duplex
= ecmd
->duplex
;
277 skge
->autoneg
= ecmd
->autoneg
;
278 skge
->advertising
= ecmd
->advertising
;
280 if (netif_running(dev
))
281 skge_phy_reset(skge
);
286 static void skge_get_drvinfo(struct net_device
*dev
,
287 struct ethtool_drvinfo
*info
)
289 struct skge_port
*skge
= netdev_priv(dev
);
291 strcpy(info
->driver
, DRV_NAME
);
292 strcpy(info
->version
, DRV_VERSION
);
293 strcpy(info
->fw_version
, "N/A");
294 strcpy(info
->bus_info
, pci_name(skge
->hw
->pdev
));
297 static const struct skge_stat
{
298 char name
[ETH_GSTRING_LEN
];
302 { "tx_bytes", XM_TXO_OK_HI
, GM_TXO_OK_HI
},
303 { "rx_bytes", XM_RXO_OK_HI
, GM_RXO_OK_HI
},
305 { "tx_broadcast", XM_TXF_BC_OK
, GM_TXF_BC_OK
},
306 { "rx_broadcast", XM_RXF_BC_OK
, GM_RXF_BC_OK
},
307 { "tx_multicast", XM_TXF_MC_OK
, GM_TXF_MC_OK
},
308 { "rx_multicast", XM_RXF_MC_OK
, GM_RXF_MC_OK
},
309 { "tx_unicast", XM_TXF_UC_OK
, GM_TXF_UC_OK
},
310 { "rx_unicast", XM_RXF_UC_OK
, GM_RXF_UC_OK
},
311 { "tx_mac_pause", XM_TXF_MPAUSE
, GM_TXF_MPAUSE
},
312 { "rx_mac_pause", XM_RXF_MPAUSE
, GM_RXF_MPAUSE
},
314 { "collisions", XM_TXF_SNG_COL
, GM_TXF_SNG_COL
},
315 { "multi_collisions", XM_TXF_MUL_COL
, GM_TXF_MUL_COL
},
316 { "aborted", XM_TXF_ABO_COL
, GM_TXF_ABO_COL
},
317 { "late_collision", XM_TXF_LAT_COL
, GM_TXF_LAT_COL
},
318 { "fifo_underrun", XM_TXE_FIFO_UR
, GM_TXE_FIFO_UR
},
319 { "fifo_overflow", XM_RXE_FIFO_OV
, GM_RXE_FIFO_OV
},
321 { "rx_toolong", XM_RXF_LNG_ERR
, GM_RXF_LNG_ERR
},
322 { "rx_jabber", XM_RXF_JAB_PKT
, GM_RXF_JAB_PKT
},
323 { "rx_runt", XM_RXE_RUNT
, GM_RXE_FRAG
},
324 { "rx_too_long", XM_RXF_LNG_ERR
, GM_RXF_LNG_ERR
},
325 { "rx_fcs_error", XM_RXF_FCS_ERR
, GM_RXF_FCS_ERR
},
328 static int skge_get_stats_count(struct net_device
*dev
)
330 return ARRAY_SIZE(skge_stats
);
333 static void skge_get_ethtool_stats(struct net_device
*dev
,
334 struct ethtool_stats
*stats
, u64
*data
)
336 struct skge_port
*skge
= netdev_priv(dev
);
338 if (skge
->hw
->chip_id
== CHIP_ID_GENESIS
)
339 genesis_get_stats(skge
, data
);
341 yukon_get_stats(skge
, data
);
344 /* Use hardware MIB variables for critical path statistics and
345 * transmit feedback not reported at interrupt.
346 * Other errors are accounted for in interrupt handler.
348 static struct net_device_stats
*skge_get_stats(struct net_device
*dev
)
350 struct skge_port
*skge
= netdev_priv(dev
);
351 u64 data
[ARRAY_SIZE(skge_stats
)];
353 if (skge
->hw
->chip_id
== CHIP_ID_GENESIS
)
354 genesis_get_stats(skge
, data
);
356 yukon_get_stats(skge
, data
);
358 skge
->net_stats
.tx_bytes
= data
[0];
359 skge
->net_stats
.rx_bytes
= data
[1];
360 skge
->net_stats
.tx_packets
= data
[2] + data
[4] + data
[6];
361 skge
->net_stats
.rx_packets
= data
[3] + data
[5] + data
[7];
362 skge
->net_stats
.multicast
= data
[3] + data
[5];
363 skge
->net_stats
.collisions
= data
[10];
364 skge
->net_stats
.tx_aborted_errors
= data
[12];
366 return &skge
->net_stats
;
369 static void skge_get_strings(struct net_device
*dev
, u32 stringset
, u8
*data
)
375 for (i
= 0; i
< ARRAY_SIZE(skge_stats
); i
++)
376 memcpy(data
+ i
* ETH_GSTRING_LEN
,
377 skge_stats
[i
].name
, ETH_GSTRING_LEN
);
382 static void skge_get_ring_param(struct net_device
*dev
,
383 struct ethtool_ringparam
*p
)
385 struct skge_port
*skge
= netdev_priv(dev
);
387 p
->rx_max_pending
= MAX_RX_RING_SIZE
;
388 p
->tx_max_pending
= MAX_TX_RING_SIZE
;
389 p
->rx_mini_max_pending
= 0;
390 p
->rx_jumbo_max_pending
= 0;
392 p
->rx_pending
= skge
->rx_ring
.count
;
393 p
->tx_pending
= skge
->tx_ring
.count
;
394 p
->rx_mini_pending
= 0;
395 p
->rx_jumbo_pending
= 0;
398 static int skge_set_ring_param(struct net_device
*dev
,
399 struct ethtool_ringparam
*p
)
401 struct skge_port
*skge
= netdev_priv(dev
);
404 if (p
->rx_pending
== 0 || p
->rx_pending
> MAX_RX_RING_SIZE
||
405 p
->tx_pending
< TX_LOW_WATER
|| p
->tx_pending
> MAX_TX_RING_SIZE
)
408 skge
->rx_ring
.count
= p
->rx_pending
;
409 skge
->tx_ring
.count
= p
->tx_pending
;
411 if (netif_running(dev
)) {
421 static u32
skge_get_msglevel(struct net_device
*netdev
)
423 struct skge_port
*skge
= netdev_priv(netdev
);
424 return skge
->msg_enable
;
427 static void skge_set_msglevel(struct net_device
*netdev
, u32 value
)
429 struct skge_port
*skge
= netdev_priv(netdev
);
430 skge
->msg_enable
= value
;
433 static int skge_nway_reset(struct net_device
*dev
)
435 struct skge_port
*skge
= netdev_priv(dev
);
437 if (skge
->autoneg
!= AUTONEG_ENABLE
|| !netif_running(dev
))
440 skge_phy_reset(skge
);
444 static int skge_set_sg(struct net_device
*dev
, u32 data
)
446 struct skge_port
*skge
= netdev_priv(dev
);
447 struct skge_hw
*hw
= skge
->hw
;
449 if (hw
->chip_id
== CHIP_ID_GENESIS
&& data
)
451 return ethtool_op_set_sg(dev
, data
);
454 static int skge_set_tx_csum(struct net_device
*dev
, u32 data
)
456 struct skge_port
*skge
= netdev_priv(dev
);
457 struct skge_hw
*hw
= skge
->hw
;
459 if (hw
->chip_id
== CHIP_ID_GENESIS
&& data
)
462 return ethtool_op_set_tx_csum(dev
, data
);
465 static u32
skge_get_rx_csum(struct net_device
*dev
)
467 struct skge_port
*skge
= netdev_priv(dev
);
469 return skge
->rx_csum
;
472 /* Only Yukon supports checksum offload. */
473 static int skge_set_rx_csum(struct net_device
*dev
, u32 data
)
475 struct skge_port
*skge
= netdev_priv(dev
);
477 if (skge
->hw
->chip_id
== CHIP_ID_GENESIS
&& data
)
480 skge
->rx_csum
= data
;
484 static void skge_get_pauseparam(struct net_device
*dev
,
485 struct ethtool_pauseparam
*ecmd
)
487 struct skge_port
*skge
= netdev_priv(dev
);
489 ecmd
->tx_pause
= (skge
->flow_control
== FLOW_MODE_LOC_SEND
)
490 || (skge
->flow_control
== FLOW_MODE_SYMMETRIC
);
491 ecmd
->rx_pause
= (skge
->flow_control
== FLOW_MODE_REM_SEND
)
492 || (skge
->flow_control
== FLOW_MODE_SYMMETRIC
);
494 ecmd
->autoneg
= skge
->autoneg
;
497 static int skge_set_pauseparam(struct net_device
*dev
,
498 struct ethtool_pauseparam
*ecmd
)
500 struct skge_port
*skge
= netdev_priv(dev
);
502 skge
->autoneg
= ecmd
->autoneg
;
503 if (ecmd
->rx_pause
&& ecmd
->tx_pause
)
504 skge
->flow_control
= FLOW_MODE_SYMMETRIC
;
505 else if (ecmd
->rx_pause
&& !ecmd
->tx_pause
)
506 skge
->flow_control
= FLOW_MODE_REM_SEND
;
507 else if (!ecmd
->rx_pause
&& ecmd
->tx_pause
)
508 skge
->flow_control
= FLOW_MODE_LOC_SEND
;
510 skge
->flow_control
= FLOW_MODE_NONE
;
512 if (netif_running(dev
))
513 skge_phy_reset(skge
);
517 /* Chip internal frequency for clock calculations */
518 static inline u32
hwkhz(const struct skge_hw
*hw
)
520 if (hw
->chip_id
== CHIP_ID_GENESIS
)
521 return 53215; /* or: 53.125 MHz */
523 return 78215; /* or: 78.125 MHz */
526 /* Chip HZ to microseconds */
527 static inline u32
skge_clk2usec(const struct skge_hw
*hw
, u32 ticks
)
529 return (ticks
* 1000) / hwkhz(hw
);
532 /* Microseconds to chip HZ */
533 static inline u32
skge_usecs2clk(const struct skge_hw
*hw
, u32 usec
)
535 return hwkhz(hw
) * usec
/ 1000;
538 static int skge_get_coalesce(struct net_device
*dev
,
539 struct ethtool_coalesce
*ecmd
)
541 struct skge_port
*skge
= netdev_priv(dev
);
542 struct skge_hw
*hw
= skge
->hw
;
543 int port
= skge
->port
;
545 ecmd
->rx_coalesce_usecs
= 0;
546 ecmd
->tx_coalesce_usecs
= 0;
548 if (skge_read32(hw
, B2_IRQM_CTRL
) & TIM_START
) {
549 u32 delay
= skge_clk2usec(hw
, skge_read32(hw
, B2_IRQM_INI
));
550 u32 msk
= skge_read32(hw
, B2_IRQM_MSK
);
552 if (msk
& rxirqmask
[port
])
553 ecmd
->rx_coalesce_usecs
= delay
;
554 if (msk
& txirqmask
[port
])
555 ecmd
->tx_coalesce_usecs
= delay
;
561 /* Note: interrupt timer is per board, but can turn on/off per port */
562 static int skge_set_coalesce(struct net_device
*dev
,
563 struct ethtool_coalesce
*ecmd
)
565 struct skge_port
*skge
= netdev_priv(dev
);
566 struct skge_hw
*hw
= skge
->hw
;
567 int port
= skge
->port
;
568 u32 msk
= skge_read32(hw
, B2_IRQM_MSK
);
571 if (ecmd
->rx_coalesce_usecs
== 0)
572 msk
&= ~rxirqmask
[port
];
573 else if (ecmd
->rx_coalesce_usecs
< 25 ||
574 ecmd
->rx_coalesce_usecs
> 33333)
577 msk
|= rxirqmask
[port
];
578 delay
= ecmd
->rx_coalesce_usecs
;
581 if (ecmd
->tx_coalesce_usecs
== 0)
582 msk
&= ~txirqmask
[port
];
583 else if (ecmd
->tx_coalesce_usecs
< 25 ||
584 ecmd
->tx_coalesce_usecs
> 33333)
587 msk
|= txirqmask
[port
];
588 delay
= min(delay
, ecmd
->rx_coalesce_usecs
);
591 skge_write32(hw
, B2_IRQM_MSK
, msk
);
593 skge_write32(hw
, B2_IRQM_CTRL
, TIM_STOP
);
595 skge_write32(hw
, B2_IRQM_INI
, skge_usecs2clk(hw
, delay
));
596 skge_write32(hw
, B2_IRQM_CTRL
, TIM_START
);
601 enum led_mode
{ LED_MODE_OFF
, LED_MODE_ON
, LED_MODE_TST
};
602 static void skge_led(struct skge_port
*skge
, enum led_mode mode
)
604 struct skge_hw
*hw
= skge
->hw
;
605 int port
= skge
->port
;
607 mutex_lock(&hw
->phy_mutex
);
608 if (hw
->chip_id
== CHIP_ID_GENESIS
) {
611 xm_phy_write(hw
, port
, PHY_BCOM_P_EXT_CTRL
, PHY_B_PEC_LED_OFF
);
612 skge_write8(hw
, SK_REG(port
, LNK_LED_REG
), LINKLED_OFF
);
613 skge_write32(hw
, SK_REG(port
, RX_LED_VAL
), 0);
614 skge_write8(hw
, SK_REG(port
, RX_LED_CTRL
), LED_T_OFF
);
618 skge_write8(hw
, SK_REG(port
, LNK_LED_REG
), LINKLED_ON
);
619 skge_write8(hw
, SK_REG(port
, LNK_LED_REG
), LINKLED_LINKSYNC_ON
);
621 skge_write8(hw
, SK_REG(port
, RX_LED_CTRL
), LED_START
);
622 skge_write8(hw
, SK_REG(port
, TX_LED_CTRL
), LED_START
);
627 skge_write8(hw
, SK_REG(port
, RX_LED_TST
), LED_T_ON
);
628 skge_write32(hw
, SK_REG(port
, RX_LED_VAL
), 100);
629 skge_write8(hw
, SK_REG(port
, RX_LED_CTRL
), LED_START
);
631 xm_phy_write(hw
, port
, PHY_BCOM_P_EXT_CTRL
, PHY_B_PEC_LED_ON
);
637 gm_phy_write(hw
, port
, PHY_MARV_LED_CTRL
, 0);
638 gm_phy_write(hw
, port
, PHY_MARV_LED_OVER
,
639 PHY_M_LED_MO_DUP(MO_LED_OFF
) |
640 PHY_M_LED_MO_10(MO_LED_OFF
) |
641 PHY_M_LED_MO_100(MO_LED_OFF
) |
642 PHY_M_LED_MO_1000(MO_LED_OFF
) |
643 PHY_M_LED_MO_RX(MO_LED_OFF
));
646 gm_phy_write(hw
, port
, PHY_MARV_LED_CTRL
,
647 PHY_M_LED_PULS_DUR(PULS_170MS
) |
648 PHY_M_LED_BLINK_RT(BLINK_84MS
) |
652 gm_phy_write(hw
, port
, PHY_MARV_LED_OVER
,
653 PHY_M_LED_MO_RX(MO_LED_OFF
) |
654 (skge
->speed
== SPEED_100
?
655 PHY_M_LED_MO_100(MO_LED_ON
) : 0));
658 gm_phy_write(hw
, port
, PHY_MARV_LED_CTRL
, 0);
659 gm_phy_write(hw
, port
, PHY_MARV_LED_OVER
,
660 PHY_M_LED_MO_DUP(MO_LED_ON
) |
661 PHY_M_LED_MO_10(MO_LED_ON
) |
662 PHY_M_LED_MO_100(MO_LED_ON
) |
663 PHY_M_LED_MO_1000(MO_LED_ON
) |
664 PHY_M_LED_MO_RX(MO_LED_ON
));
667 mutex_unlock(&hw
->phy_mutex
);
670 /* blink LED's for finding board */
671 static int skge_phys_id(struct net_device
*dev
, u32 data
)
673 struct skge_port
*skge
= netdev_priv(dev
);
675 enum led_mode mode
= LED_MODE_TST
;
677 if (!data
|| data
> (u32
)(MAX_SCHEDULE_TIMEOUT
/ HZ
))
678 ms
= jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT
/ HZ
) * 1000;
683 skge_led(skge
, mode
);
684 mode
^= LED_MODE_TST
;
686 if (msleep_interruptible(BLINK_MS
))
691 /* back to regular LED state */
692 skge_led(skge
, netif_running(dev
) ? LED_MODE_ON
: LED_MODE_OFF
);
697 static struct ethtool_ops skge_ethtool_ops
= {
698 .get_settings
= skge_get_settings
,
699 .set_settings
= skge_set_settings
,
700 .get_drvinfo
= skge_get_drvinfo
,
701 .get_regs_len
= skge_get_regs_len
,
702 .get_regs
= skge_get_regs
,
703 .get_wol
= skge_get_wol
,
704 .set_wol
= skge_set_wol
,
705 .get_msglevel
= skge_get_msglevel
,
706 .set_msglevel
= skge_set_msglevel
,
707 .nway_reset
= skge_nway_reset
,
708 .get_link
= ethtool_op_get_link
,
709 .get_ringparam
= skge_get_ring_param
,
710 .set_ringparam
= skge_set_ring_param
,
711 .get_pauseparam
= skge_get_pauseparam
,
712 .set_pauseparam
= skge_set_pauseparam
,
713 .get_coalesce
= skge_get_coalesce
,
714 .set_coalesce
= skge_set_coalesce
,
715 .get_sg
= ethtool_op_get_sg
,
716 .set_sg
= skge_set_sg
,
717 .get_tx_csum
= ethtool_op_get_tx_csum
,
718 .set_tx_csum
= skge_set_tx_csum
,
719 .get_rx_csum
= skge_get_rx_csum
,
720 .set_rx_csum
= skge_set_rx_csum
,
721 .get_strings
= skge_get_strings
,
722 .phys_id
= skge_phys_id
,
723 .get_stats_count
= skge_get_stats_count
,
724 .get_ethtool_stats
= skge_get_ethtool_stats
,
725 .get_perm_addr
= ethtool_op_get_perm_addr
,
729 * Allocate ring elements and chain them together
730 * One-to-one association of board descriptors with ring elements
732 static int skge_ring_alloc(struct skge_ring
*ring
, void *vaddr
, u32 base
)
734 struct skge_tx_desc
*d
;
735 struct skge_element
*e
;
738 ring
->start
= kcalloc(sizeof(*e
), ring
->count
, GFP_KERNEL
);
742 for (i
= 0, e
= ring
->start
, d
= vaddr
; i
< ring
->count
; i
++, e
++, d
++) {
744 if (i
== ring
->count
- 1) {
745 e
->next
= ring
->start
;
746 d
->next_offset
= base
;
749 d
->next_offset
= base
+ (i
+1) * sizeof(*d
);
752 ring
->to_use
= ring
->to_clean
= ring
->start
;
757 /* Allocate and setup a new buffer for receiving */
758 static void skge_rx_setup(struct skge_port
*skge
, struct skge_element
*e
,
759 struct sk_buff
*skb
, unsigned int bufsize
)
761 struct skge_rx_desc
*rd
= e
->desc
;
764 map
= pci_map_single(skge
->hw
->pdev
, skb
->data
, bufsize
,
768 rd
->dma_hi
= map
>> 32;
770 rd
->csum1_start
= ETH_HLEN
;
771 rd
->csum2_start
= ETH_HLEN
;
777 rd
->control
= BMU_OWN
| BMU_STF
| BMU_IRQ_EOF
| BMU_TCP_CHECK
| bufsize
;
778 pci_unmap_addr_set(e
, mapaddr
, map
);
779 pci_unmap_len_set(e
, maplen
, bufsize
);
782 /* Resume receiving using existing skb,
783 * Note: DMA address is not changed by chip.
784 * MTU not changed while receiver active.
786 static inline void skge_rx_reuse(struct skge_element
*e
, unsigned int size
)
788 struct skge_rx_desc
*rd
= e
->desc
;
791 rd
->csum2_start
= ETH_HLEN
;
795 rd
->control
= BMU_OWN
| BMU_STF
| BMU_IRQ_EOF
| BMU_TCP_CHECK
| size
;
799 /* Free all buffers in receive ring, assumes receiver stopped */
800 static void skge_rx_clean(struct skge_port
*skge
)
802 struct skge_hw
*hw
= skge
->hw
;
803 struct skge_ring
*ring
= &skge
->rx_ring
;
804 struct skge_element
*e
;
808 struct skge_rx_desc
*rd
= e
->desc
;
811 pci_unmap_single(hw
->pdev
,
812 pci_unmap_addr(e
, mapaddr
),
813 pci_unmap_len(e
, maplen
),
815 dev_kfree_skb(e
->skb
);
818 } while ((e
= e
->next
) != ring
->start
);
822 /* Allocate buffers for receive ring
823 * For receive: to_clean is next received frame.
825 static int skge_rx_fill(struct skge_port
*skge
)
827 struct skge_ring
*ring
= &skge
->rx_ring
;
828 struct skge_element
*e
;
834 skb
= alloc_skb(skge
->rx_buf_size
+ NET_IP_ALIGN
, GFP_KERNEL
);
838 skb_reserve(skb
, NET_IP_ALIGN
);
839 skge_rx_setup(skge
, e
, skb
, skge
->rx_buf_size
);
840 } while ( (e
= e
->next
) != ring
->start
);
842 ring
->to_clean
= ring
->start
;
846 static void skge_link_up(struct skge_port
*skge
)
848 skge_write8(skge
->hw
, SK_REG(skge
->port
, LNK_LED_REG
),
849 LED_BLK_OFF
|LED_SYNC_OFF
|LED_ON
);
851 netif_carrier_on(skge
->netdev
);
852 netif_wake_queue(skge
->netdev
);
854 if (netif_msg_link(skge
))
856 "%s: Link is up at %d Mbps, %s duplex, flow control %s\n",
857 skge
->netdev
->name
, skge
->speed
,
858 skge
->duplex
== DUPLEX_FULL
? "full" : "half",
859 (skge
->flow_control
== FLOW_MODE_NONE
) ? "none" :
860 (skge
->flow_control
== FLOW_MODE_LOC_SEND
) ? "tx only" :
861 (skge
->flow_control
== FLOW_MODE_REM_SEND
) ? "rx only" :
862 (skge
->flow_control
== FLOW_MODE_SYMMETRIC
) ? "tx and rx" :
866 static void skge_link_down(struct skge_port
*skge
)
868 skge_write8(skge
->hw
, SK_REG(skge
->port
, LNK_LED_REG
), LED_OFF
);
869 netif_carrier_off(skge
->netdev
);
870 netif_stop_queue(skge
->netdev
);
872 if (netif_msg_link(skge
))
873 printk(KERN_INFO PFX
"%s: Link is down.\n", skge
->netdev
->name
);
876 static int __xm_phy_read(struct skge_hw
*hw
, int port
, u16 reg
, u16
*val
)
880 xm_write16(hw
, port
, XM_PHY_ADDR
, reg
| hw
->phy_addr
);
881 *val
= xm_read16(hw
, port
, XM_PHY_DATA
);
883 for (i
= 0; i
< PHY_RETRIES
; i
++) {
884 if (xm_read16(hw
, port
, XM_MMU_CMD
) & XM_MMU_PHY_RDY
)
891 *val
= xm_read16(hw
, port
, XM_PHY_DATA
);
896 static u16
xm_phy_read(struct skge_hw
*hw
, int port
, u16 reg
)
899 if (__xm_phy_read(hw
, port
, reg
, &v
))
900 printk(KERN_WARNING PFX
"%s: phy read timed out\n",
901 hw
->dev
[port
]->name
);
905 static int xm_phy_write(struct skge_hw
*hw
, int port
, u16 reg
, u16 val
)
909 xm_write16(hw
, port
, XM_PHY_ADDR
, reg
| hw
->phy_addr
);
910 for (i
= 0; i
< PHY_RETRIES
; i
++) {
911 if (!(xm_read16(hw
, port
, XM_MMU_CMD
) & XM_MMU_PHY_BUSY
))
918 xm_write16(hw
, port
, XM_PHY_DATA
, val
);
919 for (i
= 0; i
< PHY_RETRIES
; i
++) {
920 if (!(xm_read16(hw
, port
, XM_MMU_CMD
) & XM_MMU_PHY_BUSY
))
927 static void genesis_init(struct skge_hw
*hw
)
929 /* set blink source counter */
930 skge_write32(hw
, B2_BSC_INI
, (SK_BLK_DUR
* SK_FACT_53
) / 100);
931 skge_write8(hw
, B2_BSC_CTRL
, BSC_START
);
933 /* configure mac arbiter */
934 skge_write16(hw
, B3_MA_TO_CTRL
, MA_RST_CLR
);
936 /* configure mac arbiter timeout values */
937 skge_write8(hw
, B3_MA_TOINI_RX1
, SK_MAC_TO_53
);
938 skge_write8(hw
, B3_MA_TOINI_RX2
, SK_MAC_TO_53
);
939 skge_write8(hw
, B3_MA_TOINI_TX1
, SK_MAC_TO_53
);
940 skge_write8(hw
, B3_MA_TOINI_TX2
, SK_MAC_TO_53
);
942 skge_write8(hw
, B3_MA_RCINI_RX1
, 0);
943 skge_write8(hw
, B3_MA_RCINI_RX2
, 0);
944 skge_write8(hw
, B3_MA_RCINI_TX1
, 0);
945 skge_write8(hw
, B3_MA_RCINI_TX2
, 0);
947 /* configure packet arbiter timeout */
948 skge_write16(hw
, B3_PA_CTRL
, PA_RST_CLR
);
949 skge_write16(hw
, B3_PA_TOINI_RX1
, SK_PKT_TO_MAX
);
950 skge_write16(hw
, B3_PA_TOINI_TX1
, SK_PKT_TO_MAX
);
951 skge_write16(hw
, B3_PA_TOINI_RX2
, SK_PKT_TO_MAX
);
952 skge_write16(hw
, B3_PA_TOINI_TX2
, SK_PKT_TO_MAX
);
955 static void genesis_reset(struct skge_hw
*hw
, int port
)
957 const u8 zero
[8] = { 0 };
959 skge_write8(hw
, SK_REG(port
, GMAC_IRQ_MSK
), 0);
961 /* reset the statistics module */
962 xm_write32(hw
, port
, XM_GP_PORT
, XM_GP_RES_STAT
);
963 xm_write16(hw
, port
, XM_IMSK
, 0xffff); /* disable XMAC IRQs */
964 xm_write32(hw
, port
, XM_MODE
, 0); /* clear Mode Reg */
965 xm_write16(hw
, port
, XM_TX_CMD
, 0); /* reset TX CMD Reg */
966 xm_write16(hw
, port
, XM_RX_CMD
, 0); /* reset RX CMD Reg */
968 /* disable Broadcom PHY IRQ */
969 xm_write16(hw
, port
, PHY_BCOM_INT_MASK
, 0xffff);
971 xm_outhash(hw
, port
, XM_HSM
, zero
);
975 /* Convert mode to MII values */
976 static const u16 phy_pause_map
[] = {
977 [FLOW_MODE_NONE
] = 0,
978 [FLOW_MODE_LOC_SEND
] = PHY_AN_PAUSE_ASYM
,
979 [FLOW_MODE_SYMMETRIC
] = PHY_AN_PAUSE_CAP
,
980 [FLOW_MODE_REM_SEND
] = PHY_AN_PAUSE_CAP
| PHY_AN_PAUSE_ASYM
,
984 /* Check status of Broadcom phy link */
985 static void bcom_check_link(struct skge_hw
*hw
, int port
)
987 struct net_device
*dev
= hw
->dev
[port
];
988 struct skge_port
*skge
= netdev_priv(dev
);
991 /* read twice because of latch */
992 (void) xm_phy_read(hw
, port
, PHY_BCOM_STAT
);
993 status
= xm_phy_read(hw
, port
, PHY_BCOM_STAT
);
995 if ((status
& PHY_ST_LSYNC
) == 0) {
996 u16 cmd
= xm_read16(hw
, port
, XM_MMU_CMD
);
997 cmd
&= ~(XM_MMU_ENA_RX
| XM_MMU_ENA_TX
);
998 xm_write16(hw
, port
, XM_MMU_CMD
, cmd
);
999 /* dummy read to ensure writing */
1000 (void) xm_read16(hw
, port
, XM_MMU_CMD
);
1002 if (netif_carrier_ok(dev
))
1003 skge_link_down(skge
);
1005 if (skge
->autoneg
== AUTONEG_ENABLE
&&
1006 (status
& PHY_ST_AN_OVER
)) {
1007 u16 lpa
= xm_phy_read(hw
, port
, PHY_BCOM_AUNE_LP
);
1008 u16 aux
= xm_phy_read(hw
, port
, PHY_BCOM_AUX_STAT
);
1010 if (lpa
& PHY_B_AN_RF
) {
1011 printk(KERN_NOTICE PFX
"%s: remote fault\n",
1016 /* Check Duplex mismatch */
1017 switch (aux
& PHY_B_AS_AN_RES_MSK
) {
1018 case PHY_B_RES_1000FD
:
1019 skge
->duplex
= DUPLEX_FULL
;
1021 case PHY_B_RES_1000HD
:
1022 skge
->duplex
= DUPLEX_HALF
;
1025 printk(KERN_NOTICE PFX
"%s: duplex mismatch\n",
1031 /* We are using IEEE 802.3z/D5.0 Table 37-4 */
1032 switch (aux
& PHY_B_AS_PAUSE_MSK
) {
1033 case PHY_B_AS_PAUSE_MSK
:
1034 skge
->flow_control
= FLOW_MODE_SYMMETRIC
;
1037 skge
->flow_control
= FLOW_MODE_REM_SEND
;
1040 skge
->flow_control
= FLOW_MODE_LOC_SEND
;
1043 skge
->flow_control
= FLOW_MODE_NONE
;
1046 skge
->speed
= SPEED_1000
;
1049 if (!netif_carrier_ok(dev
))
1050 genesis_link_up(skge
);
1054 /* Broadcom 5400 only supports giagabit! SysKonnect did not put an additional
1055 * Phy on for 100 or 10Mbit operation
1057 static void bcom_phy_init(struct skge_port
*skge
, int jumbo
)
1059 struct skge_hw
*hw
= skge
->hw
;
1060 int port
= skge
->port
;
1062 u16 id1
, r
, ext
, ctl
;
1064 /* magic workaround patterns for Broadcom */
1065 static const struct {
1069 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 },
1070 { 0x17, 0x0013 }, { 0x15, 0x0404 }, { 0x17, 0x8006 },
1071 { 0x15, 0x0132 }, { 0x17, 0x8006 }, { 0x15, 0x0232 },
1072 { 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 },
1074 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1204 },
1075 { 0x17, 0x0013 }, { 0x15, 0x0A04 }, { 0x18, 0x0420 },
1078 /* read Id from external PHY (all have the same address) */
1079 id1
= xm_phy_read(hw
, port
, PHY_XMAC_ID1
);
1081 /* Optimize MDIO transfer by suppressing preamble. */
1082 r
= xm_read16(hw
, port
, XM_MMU_CMD
);
1084 xm_write16(hw
, port
, XM_MMU_CMD
,r
);
1087 case PHY_BCOM_ID1_C0
:
1089 * Workaround BCOM Errata for the C0 type.
1090 * Write magic patterns to reserved registers.
1092 for (i
= 0; i
< ARRAY_SIZE(C0hack
); i
++)
1093 xm_phy_write(hw
, port
,
1094 C0hack
[i
].reg
, C0hack
[i
].val
);
1097 case PHY_BCOM_ID1_A1
:
1099 * Workaround BCOM Errata for the A1 type.
1100 * Write magic patterns to reserved registers.
1102 for (i
= 0; i
< ARRAY_SIZE(A1hack
); i
++)
1103 xm_phy_write(hw
, port
,
1104 A1hack
[i
].reg
, A1hack
[i
].val
);
1109 * Workaround BCOM Errata (#10523) for all BCom PHYs.
1110 * Disable Power Management after reset.
1112 r
= xm_phy_read(hw
, port
, PHY_BCOM_AUX_CTRL
);
1113 r
|= PHY_B_AC_DIS_PM
;
1114 xm_phy_write(hw
, port
, PHY_BCOM_AUX_CTRL
, r
);
1117 xm_read16(hw
, port
, XM_ISRC
);
1119 ext
= PHY_B_PEC_EN_LTR
; /* enable tx led */
1120 ctl
= PHY_CT_SP1000
; /* always 1000mbit */
1122 if (skge
->autoneg
== AUTONEG_ENABLE
) {
1124 * Workaround BCOM Errata #1 for the C5 type.
1125 * 1000Base-T Link Acquisition Failure in Slave Mode
1126 * Set Repeater/DTE bit 10 of the 1000Base-T Control Register
1128 u16 adv
= PHY_B_1000C_RD
;
1129 if (skge
->advertising
& ADVERTISED_1000baseT_Half
)
1130 adv
|= PHY_B_1000C_AHD
;
1131 if (skge
->advertising
& ADVERTISED_1000baseT_Full
)
1132 adv
|= PHY_B_1000C_AFD
;
1133 xm_phy_write(hw
, port
, PHY_BCOM_1000T_CTRL
, adv
);
1135 ctl
|= PHY_CT_ANE
| PHY_CT_RE_CFG
;
1137 if (skge
->duplex
== DUPLEX_FULL
)
1138 ctl
|= PHY_CT_DUP_MD
;
1139 /* Force to slave */
1140 xm_phy_write(hw
, port
, PHY_BCOM_1000T_CTRL
, PHY_B_1000C_MSE
);
1143 /* Set autonegotiation pause parameters */
1144 xm_phy_write(hw
, port
, PHY_BCOM_AUNE_ADV
,
1145 phy_pause_map
[skge
->flow_control
] | PHY_AN_CSMA
);
1147 /* Handle Jumbo frames */
1149 xm_phy_write(hw
, port
, PHY_BCOM_AUX_CTRL
,
1150 PHY_B_AC_TX_TST
| PHY_B_AC_LONG_PACK
);
1152 ext
|= PHY_B_PEC_HIGH_LA
;
1156 xm_phy_write(hw
, port
, PHY_BCOM_P_EXT_CTRL
, ext
);
1157 xm_phy_write(hw
, port
, PHY_BCOM_CTRL
, ctl
);
1159 /* Use link status change interrupt */
1160 xm_phy_write(hw
, port
, PHY_BCOM_INT_MASK
, PHY_B_DEF_MSK
);
1162 bcom_check_link(hw
, port
);
1165 static void genesis_mac_init(struct skge_hw
*hw
, int port
)
1167 struct net_device
*dev
= hw
->dev
[port
];
1168 struct skge_port
*skge
= netdev_priv(dev
);
1169 int jumbo
= hw
->dev
[port
]->mtu
> ETH_DATA_LEN
;
1172 const u8 zero
[6] = { 0 };
1174 for (i
= 0; i
< 10; i
++) {
1175 skge_write16(hw
, SK_REG(port
, TX_MFF_CTRL1
),
1177 if (skge_read16(hw
, SK_REG(port
, TX_MFF_CTRL1
)) & MFF_SET_MAC_RST
)
1182 printk(KERN_WARNING PFX
"%s: genesis reset failed\n", dev
->name
);
1185 /* Unreset the XMAC. */
1186 skge_write16(hw
, SK_REG(port
, TX_MFF_CTRL1
), MFF_CLR_MAC_RST
);
1189 * Perform additional initialization for external PHYs,
1190 * namely for the 1000baseTX cards that use the XMAC's
1193 /* Take external Phy out of reset */
1194 r
= skge_read32(hw
, B2_GP_IO
);
1196 r
|= GP_DIR_0
|GP_IO_0
;
1198 r
|= GP_DIR_2
|GP_IO_2
;
1200 skge_write32(hw
, B2_GP_IO
, r
);
1203 /* Enable GMII interface */
1204 xm_write16(hw
, port
, XM_HW_CFG
, XM_HW_GMII_MD
);
1206 bcom_phy_init(skge
, jumbo
);
1208 /* Set Station Address */
1209 xm_outaddr(hw
, port
, XM_SA
, dev
->dev_addr
);
1211 /* We don't use match addresses so clear */
1212 for (i
= 1; i
< 16; i
++)
1213 xm_outaddr(hw
, port
, XM_EXM(i
), zero
);
1215 /* Clear MIB counters */
1216 xm_write16(hw
, port
, XM_STAT_CMD
,
1217 XM_SC_CLR_RXC
| XM_SC_CLR_TXC
);
1218 /* Clear two times according to Errata #3 */
1219 xm_write16(hw
, port
, XM_STAT_CMD
,
1220 XM_SC_CLR_RXC
| XM_SC_CLR_TXC
);
1222 /* configure Rx High Water Mark (XM_RX_HI_WM) */
1223 xm_write16(hw
, port
, XM_RX_HI_WM
, 1450);
1225 /* We don't need the FCS appended to the packet. */
1226 r
= XM_RX_LENERR_OK
| XM_RX_STRIP_FCS
;
1228 r
|= XM_RX_BIG_PK_OK
;
1230 if (skge
->duplex
== DUPLEX_HALF
) {
1232 * If in manual half duplex mode the other side might be in
1233 * full duplex mode, so ignore if a carrier extension is not seen
1234 * on frames received
1236 r
|= XM_RX_DIS_CEXT
;
1238 xm_write16(hw
, port
, XM_RX_CMD
, r
);
1241 /* We want short frames padded to 60 bytes. */
1242 xm_write16(hw
, port
, XM_TX_CMD
, XM_TX_AUTO_PAD
);
1245 * Bump up the transmit threshold. This helps hold off transmit
1246 * underruns when we're blasting traffic from both ports at once.
1248 xm_write16(hw
, port
, XM_TX_THR
, 512);
1251 * Enable the reception of all error frames. This is is
1252 * a necessary evil due to the design of the XMAC. The
1253 * XMAC's receive FIFO is only 8K in size, however jumbo
1254 * frames can be up to 9000 bytes in length. When bad
1255 * frame filtering is enabled, the XMAC's RX FIFO operates
1256 * in 'store and forward' mode. For this to work, the
1257 * entire frame has to fit into the FIFO, but that means
1258 * that jumbo frames larger than 8192 bytes will be
1259 * truncated. Disabling all bad frame filtering causes
1260 * the RX FIFO to operate in streaming mode, in which
1261 * case the XMAC will start transferring frames out of the
1262 * RX FIFO as soon as the FIFO threshold is reached.
1264 xm_write32(hw
, port
, XM_MODE
, XM_DEF_MODE
);
1268 * Initialize the Receive Counter Event Mask (XM_RX_EV_MSK)
1269 * - Enable all bits excepting 'Octets Rx OK Low CntOv'
1270 * and 'Octets Rx OK Hi Cnt Ov'.
1272 xm_write32(hw
, port
, XM_RX_EV_MSK
, XMR_DEF_MSK
);
1275 * Initialize the Transmit Counter Event Mask (XM_TX_EV_MSK)
1276 * - Enable all bits excepting 'Octets Tx OK Low CntOv'
1277 * and 'Octets Tx OK Hi Cnt Ov'.
1279 xm_write32(hw
, port
, XM_TX_EV_MSK
, XMT_DEF_MSK
);
1281 /* Configure MAC arbiter */
1282 skge_write16(hw
, B3_MA_TO_CTRL
, MA_RST_CLR
);
1284 /* configure timeout values */
1285 skge_write8(hw
, B3_MA_TOINI_RX1
, 72);
1286 skge_write8(hw
, B3_MA_TOINI_RX2
, 72);
1287 skge_write8(hw
, B3_MA_TOINI_TX1
, 72);
1288 skge_write8(hw
, B3_MA_TOINI_TX2
, 72);
1290 skge_write8(hw
, B3_MA_RCINI_RX1
, 0);
1291 skge_write8(hw
, B3_MA_RCINI_RX2
, 0);
1292 skge_write8(hw
, B3_MA_RCINI_TX1
, 0);
1293 skge_write8(hw
, B3_MA_RCINI_TX2
, 0);
1295 /* Configure Rx MAC FIFO */
1296 skge_write8(hw
, SK_REG(port
, RX_MFF_CTRL2
), MFF_RST_CLR
);
1297 skge_write16(hw
, SK_REG(port
, RX_MFF_CTRL1
), MFF_ENA_TIM_PAT
);
1298 skge_write8(hw
, SK_REG(port
, RX_MFF_CTRL2
), MFF_ENA_OP_MD
);
1300 /* Configure Tx MAC FIFO */
1301 skge_write8(hw
, SK_REG(port
, TX_MFF_CTRL2
), MFF_RST_CLR
);
1302 skge_write16(hw
, SK_REG(port
, TX_MFF_CTRL1
), MFF_TX_CTRL_DEF
);
1303 skge_write8(hw
, SK_REG(port
, TX_MFF_CTRL2
), MFF_ENA_OP_MD
);
1306 /* Enable frame flushing if jumbo frames used */
1307 skge_write16(hw
, SK_REG(port
,RX_MFF_CTRL1
), MFF_ENA_FLUSH
);
1309 /* enable timeout timers if normal frames */
1310 skge_write16(hw
, B3_PA_CTRL
,
1311 (port
== 0) ? PA_ENA_TO_TX1
: PA_ENA_TO_TX2
);
1315 static void genesis_stop(struct skge_port
*skge
)
1317 struct skge_hw
*hw
= skge
->hw
;
1318 int port
= skge
->port
;
1321 genesis_reset(hw
, port
);
1323 /* Clear Tx packet arbiter timeout IRQ */
1324 skge_write16(hw
, B3_PA_CTRL
,
1325 port
== 0 ? PA_CLR_TO_TX1
: PA_CLR_TO_TX2
);
1328 * If the transfer sticks at the MAC the STOP command will not
1329 * terminate if we don't flush the XMAC's transmit FIFO !
1331 xm_write32(hw
, port
, XM_MODE
,
1332 xm_read32(hw
, port
, XM_MODE
)|XM_MD_FTF
);
1336 skge_write16(hw
, SK_REG(port
, TX_MFF_CTRL1
), MFF_SET_MAC_RST
);
1338 /* For external PHYs there must be special handling */
1339 reg
= skge_read32(hw
, B2_GP_IO
);
1347 skge_write32(hw
, B2_GP_IO
, reg
);
1348 skge_read32(hw
, B2_GP_IO
);
1350 xm_write16(hw
, port
, XM_MMU_CMD
,
1351 xm_read16(hw
, port
, XM_MMU_CMD
)
1352 & ~(XM_MMU_ENA_RX
| XM_MMU_ENA_TX
));
1354 xm_read16(hw
, port
, XM_MMU_CMD
);
1358 static void genesis_get_stats(struct skge_port
*skge
, u64
*data
)
1360 struct skge_hw
*hw
= skge
->hw
;
1361 int port
= skge
->port
;
1363 unsigned long timeout
= jiffies
+ HZ
;
1365 xm_write16(hw
, port
,
1366 XM_STAT_CMD
, XM_SC_SNP_TXC
| XM_SC_SNP_RXC
);
1368 /* wait for update to complete */
1369 while (xm_read16(hw
, port
, XM_STAT_CMD
)
1370 & (XM_SC_SNP_TXC
| XM_SC_SNP_RXC
)) {
1371 if (time_after(jiffies
, timeout
))
1376 /* special case for 64 bit octet counter */
1377 data
[0] = (u64
) xm_read32(hw
, port
, XM_TXO_OK_HI
) << 32
1378 | xm_read32(hw
, port
, XM_TXO_OK_LO
);
1379 data
[1] = (u64
) xm_read32(hw
, port
, XM_RXO_OK_HI
) << 32
1380 | xm_read32(hw
, port
, XM_RXO_OK_LO
);
1382 for (i
= 2; i
< ARRAY_SIZE(skge_stats
); i
++)
1383 data
[i
] = xm_read32(hw
, port
, skge_stats
[i
].xmac_offset
);
1386 static void genesis_mac_intr(struct skge_hw
*hw
, int port
)
1388 struct skge_port
*skge
= netdev_priv(hw
->dev
[port
]);
1389 u16 status
= xm_read16(hw
, port
, XM_ISRC
);
1391 if (netif_msg_intr(skge
))
1392 printk(KERN_DEBUG PFX
"%s: mac interrupt status 0x%x\n",
1393 skge
->netdev
->name
, status
);
1395 if (status
& XM_IS_TXF_UR
) {
1396 xm_write32(hw
, port
, XM_MODE
, XM_MD_FTF
);
1397 ++skge
->net_stats
.tx_fifo_errors
;
1399 if (status
& XM_IS_RXF_OV
) {
1400 xm_write32(hw
, port
, XM_MODE
, XM_MD_FRF
);
1401 ++skge
->net_stats
.rx_fifo_errors
;
1405 static void genesis_link_up(struct skge_port
*skge
)
1407 struct skge_hw
*hw
= skge
->hw
;
1408 int port
= skge
->port
;
1412 cmd
= xm_read16(hw
, port
, XM_MMU_CMD
);
1415 * enabling pause frame reception is required for 1000BT
1416 * because the XMAC is not reset if the link is going down
1418 if (skge
->flow_control
== FLOW_MODE_NONE
||
1419 skge
->flow_control
== FLOW_MODE_LOC_SEND
)
1420 /* Disable Pause Frame Reception */
1421 cmd
|= XM_MMU_IGN_PF
;
1423 /* Enable Pause Frame Reception */
1424 cmd
&= ~XM_MMU_IGN_PF
;
1426 xm_write16(hw
, port
, XM_MMU_CMD
, cmd
);
1428 mode
= xm_read32(hw
, port
, XM_MODE
);
1429 if (skge
->flow_control
== FLOW_MODE_SYMMETRIC
||
1430 skge
->flow_control
== FLOW_MODE_LOC_SEND
) {
1432 * Configure Pause Frame Generation
1433 * Use internal and external Pause Frame Generation.
1434 * Sending pause frames is edge triggered.
1435 * Send a Pause frame with the maximum pause time if
1436 * internal oder external FIFO full condition occurs.
1437 * Send a zero pause time frame to re-start transmission.
1439 /* XM_PAUSE_DA = '010000C28001' (default) */
1440 /* XM_MAC_PTIME = 0xffff (maximum) */
1441 /* remember this value is defined in big endian (!) */
1442 xm_write16(hw
, port
, XM_MAC_PTIME
, 0xffff);
1444 mode
|= XM_PAUSE_MODE
;
1445 skge_write16(hw
, SK_REG(port
, RX_MFF_CTRL1
), MFF_ENA_PAUSE
);
1448 * disable pause frame generation is required for 1000BT
1449 * because the XMAC is not reset if the link is going down
1451 /* Disable Pause Mode in Mode Register */
1452 mode
&= ~XM_PAUSE_MODE
;
1454 skge_write16(hw
, SK_REG(port
, RX_MFF_CTRL1
), MFF_DIS_PAUSE
);
1457 xm_write32(hw
, port
, XM_MODE
, mode
);
1460 /* disable GP0 interrupt bit for external Phy */
1461 msk
|= XM_IS_INP_ASS
;
1463 xm_write16(hw
, port
, XM_IMSK
, msk
);
1464 xm_read16(hw
, port
, XM_ISRC
);
1466 /* get MMU Command Reg. */
1467 cmd
= xm_read16(hw
, port
, XM_MMU_CMD
);
1468 if (skge
->duplex
== DUPLEX_FULL
)
1469 cmd
|= XM_MMU_GMII_FD
;
1472 * Workaround BCOM Errata (#10523) for all BCom Phys
1473 * Enable Power Management after link up
1475 xm_phy_write(hw
, port
, PHY_BCOM_AUX_CTRL
,
1476 xm_phy_read(hw
, port
, PHY_BCOM_AUX_CTRL
)
1477 & ~PHY_B_AC_DIS_PM
);
1478 xm_phy_write(hw
, port
, PHY_BCOM_INT_MASK
, PHY_B_DEF_MSK
);
1481 xm_write16(hw
, port
, XM_MMU_CMD
,
1482 cmd
| XM_MMU_ENA_RX
| XM_MMU_ENA_TX
);
1487 static inline void bcom_phy_intr(struct skge_port
*skge
)
1489 struct skge_hw
*hw
= skge
->hw
;
1490 int port
= skge
->port
;
1493 isrc
= xm_phy_read(hw
, port
, PHY_BCOM_INT_STAT
);
1494 if (netif_msg_intr(skge
))
1495 printk(KERN_DEBUG PFX
"%s: phy interrupt status 0x%x\n",
1496 skge
->netdev
->name
, isrc
);
1498 if (isrc
& PHY_B_IS_PSE
)
1499 printk(KERN_ERR PFX
"%s: uncorrectable pair swap error\n",
1500 hw
->dev
[port
]->name
);
1502 /* Workaround BCom Errata:
1503 * enable and disable loopback mode if "NO HCD" occurs.
1505 if (isrc
& PHY_B_IS_NO_HDCL
) {
1506 u16 ctrl
= xm_phy_read(hw
, port
, PHY_BCOM_CTRL
);
1507 xm_phy_write(hw
, port
, PHY_BCOM_CTRL
,
1508 ctrl
| PHY_CT_LOOP
);
1509 xm_phy_write(hw
, port
, PHY_BCOM_CTRL
,
1510 ctrl
& ~PHY_CT_LOOP
);
1513 if (isrc
& (PHY_B_IS_AN_PR
| PHY_B_IS_LST_CHANGE
))
1514 bcom_check_link(hw
, port
);
1518 static int gm_phy_write(struct skge_hw
*hw
, int port
, u16 reg
, u16 val
)
1522 gma_write16(hw
, port
, GM_SMI_DATA
, val
);
1523 gma_write16(hw
, port
, GM_SMI_CTRL
,
1524 GM_SMI_CT_PHY_AD(hw
->phy_addr
) | GM_SMI_CT_REG_AD(reg
));
1525 for (i
= 0; i
< PHY_RETRIES
; i
++) {
1528 if (!(gma_read16(hw
, port
, GM_SMI_CTRL
) & GM_SMI_CT_BUSY
))
1532 printk(KERN_WARNING PFX
"%s: phy write timeout\n",
1533 hw
->dev
[port
]->name
);
1537 static int __gm_phy_read(struct skge_hw
*hw
, int port
, u16 reg
, u16
*val
)
1541 gma_write16(hw
, port
, GM_SMI_CTRL
,
1542 GM_SMI_CT_PHY_AD(hw
->phy_addr
)
1543 | GM_SMI_CT_REG_AD(reg
) | GM_SMI_CT_OP_RD
);
1545 for (i
= 0; i
< PHY_RETRIES
; i
++) {
1547 if (gma_read16(hw
, port
, GM_SMI_CTRL
) & GM_SMI_CT_RD_VAL
)
1553 *val
= gma_read16(hw
, port
, GM_SMI_DATA
);
1557 static u16
gm_phy_read(struct skge_hw
*hw
, int port
, u16 reg
)
1560 if (__gm_phy_read(hw
, port
, reg
, &v
))
1561 printk(KERN_WARNING PFX
"%s: phy read timeout\n",
1562 hw
->dev
[port
]->name
);
1566 /* Marvell Phy Initialization */
1567 static void yukon_init(struct skge_hw
*hw
, int port
)
1569 struct skge_port
*skge
= netdev_priv(hw
->dev
[port
]);
1570 u16 ctrl
, ct1000
, adv
;
1572 if (skge
->autoneg
== AUTONEG_ENABLE
) {
1573 u16 ectrl
= gm_phy_read(hw
, port
, PHY_MARV_EXT_CTRL
);
1575 ectrl
&= ~(PHY_M_EC_M_DSC_MSK
| PHY_M_EC_S_DSC_MSK
|
1576 PHY_M_EC_MAC_S_MSK
);
1577 ectrl
|= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ
);
1579 ectrl
|= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1);
1581 gm_phy_write(hw
, port
, PHY_MARV_EXT_CTRL
, ectrl
);
1584 ctrl
= gm_phy_read(hw
, port
, PHY_MARV_CTRL
);
1585 if (skge
->autoneg
== AUTONEG_DISABLE
)
1586 ctrl
&= ~PHY_CT_ANE
;
1588 ctrl
|= PHY_CT_RESET
;
1589 gm_phy_write(hw
, port
, PHY_MARV_CTRL
, ctrl
);
1595 if (skge
->autoneg
== AUTONEG_ENABLE
) {
1597 if (skge
->advertising
& ADVERTISED_1000baseT_Full
)
1598 ct1000
|= PHY_M_1000C_AFD
;
1599 if (skge
->advertising
& ADVERTISED_1000baseT_Half
)
1600 ct1000
|= PHY_M_1000C_AHD
;
1601 if (skge
->advertising
& ADVERTISED_100baseT_Full
)
1602 adv
|= PHY_M_AN_100_FD
;
1603 if (skge
->advertising
& ADVERTISED_100baseT_Half
)
1604 adv
|= PHY_M_AN_100_HD
;
1605 if (skge
->advertising
& ADVERTISED_10baseT_Full
)
1606 adv
|= PHY_M_AN_10_FD
;
1607 if (skge
->advertising
& ADVERTISED_10baseT_Half
)
1608 adv
|= PHY_M_AN_10_HD
;
1609 } else /* special defines for FIBER (88E1011S only) */
1610 adv
|= PHY_M_AN_1000X_AHD
| PHY_M_AN_1000X_AFD
;
1612 /* Set Flow-control capabilities */
1613 adv
|= phy_pause_map
[skge
->flow_control
];
1615 /* Restart Auto-negotiation */
1616 ctrl
|= PHY_CT_ANE
| PHY_CT_RE_CFG
;
1618 /* forced speed/duplex settings */
1619 ct1000
= PHY_M_1000C_MSE
;
1621 if (skge
->duplex
== DUPLEX_FULL
)
1622 ctrl
|= PHY_CT_DUP_MD
;
1624 switch (skge
->speed
) {
1626 ctrl
|= PHY_CT_SP1000
;
1629 ctrl
|= PHY_CT_SP100
;
1633 ctrl
|= PHY_CT_RESET
;
1636 gm_phy_write(hw
, port
, PHY_MARV_1000T_CTRL
, ct1000
);
1638 gm_phy_write(hw
, port
, PHY_MARV_AUNE_ADV
, adv
);
1639 gm_phy_write(hw
, port
, PHY_MARV_CTRL
, ctrl
);
1641 /* Enable phy interrupt on autonegotiation complete (or link up) */
1642 if (skge
->autoneg
== AUTONEG_ENABLE
)
1643 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, PHY_M_IS_AN_MSK
);
1645 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, PHY_M_IS_DEF_MSK
);
1648 static void yukon_reset(struct skge_hw
*hw
, int port
)
1650 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, 0);/* disable PHY IRQs */
1651 gma_write16(hw
, port
, GM_MC_ADDR_H1
, 0); /* clear MC hash */
1652 gma_write16(hw
, port
, GM_MC_ADDR_H2
, 0);
1653 gma_write16(hw
, port
, GM_MC_ADDR_H3
, 0);
1654 gma_write16(hw
, port
, GM_MC_ADDR_H4
, 0);
1656 gma_write16(hw
, port
, GM_RX_CTRL
,
1657 gma_read16(hw
, port
, GM_RX_CTRL
)
1658 | GM_RXCR_UCF_ENA
| GM_RXCR_MCF_ENA
);
1661 /* Apparently, early versions of Yukon-Lite had wrong chip_id? */
1662 static int is_yukon_lite_a0(struct skge_hw
*hw
)
1667 if (hw
->chip_id
!= CHIP_ID_YUKON
)
1670 reg
= skge_read32(hw
, B2_FAR
);
1671 skge_write8(hw
, B2_FAR
+ 3, 0xff);
1672 ret
= (skge_read8(hw
, B2_FAR
+ 3) != 0);
1673 skge_write32(hw
, B2_FAR
, reg
);
1677 static void yukon_mac_init(struct skge_hw
*hw
, int port
)
1679 struct skge_port
*skge
= netdev_priv(hw
->dev
[port
]);
1682 const u8
*addr
= hw
->dev
[port
]->dev_addr
;
1684 /* WA code for COMA mode -- set PHY reset */
1685 if (hw
->chip_id
== CHIP_ID_YUKON_LITE
&&
1686 hw
->chip_rev
>= CHIP_REV_YU_LITE_A3
) {
1687 reg
= skge_read32(hw
, B2_GP_IO
);
1688 reg
|= GP_DIR_9
| GP_IO_9
;
1689 skge_write32(hw
, B2_GP_IO
, reg
);
1693 skge_write32(hw
, SK_REG(port
, GPHY_CTRL
), GPC_RST_SET
);
1694 skge_write32(hw
, SK_REG(port
, GMAC_CTRL
), GMC_RST_SET
);
1696 /* WA code for COMA mode -- clear PHY reset */
1697 if (hw
->chip_id
== CHIP_ID_YUKON_LITE
&&
1698 hw
->chip_rev
>= CHIP_REV_YU_LITE_A3
) {
1699 reg
= skge_read32(hw
, B2_GP_IO
);
1702 skge_write32(hw
, B2_GP_IO
, reg
);
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
|= hw
->copper
? 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
);
1715 if (skge
->autoneg
== AUTONEG_DISABLE
) {
1716 reg
= GM_GPCR_AU_ALL_DIS
;
1717 gma_write16(hw
, port
, GM_GP_CTRL
,
1718 gma_read16(hw
, port
, GM_GP_CTRL
) | reg
);
1720 switch (skge
->speed
) {
1722 reg
&= ~GM_GPCR_SPEED_100
;
1723 reg
|= GM_GPCR_SPEED_1000
;
1726 reg
&= ~GM_GPCR_SPEED_1000
;
1727 reg
|= GM_GPCR_SPEED_100
;
1730 reg
&= ~(GM_GPCR_SPEED_1000
| GM_GPCR_SPEED_100
);
1734 if (skge
->duplex
== DUPLEX_FULL
)
1735 reg
|= GM_GPCR_DUP_FULL
;
1737 reg
= GM_GPCR_SPEED_1000
| GM_GPCR_SPEED_100
| GM_GPCR_DUP_FULL
;
1739 switch (skge
->flow_control
) {
1740 case FLOW_MODE_NONE
:
1741 skge_write32(hw
, SK_REG(port
, GMAC_CTRL
), GMC_PAUSE_OFF
);
1742 reg
|= GM_GPCR_FC_TX_DIS
| GM_GPCR_FC_RX_DIS
| GM_GPCR_AU_FCT_DIS
;
1744 case FLOW_MODE_LOC_SEND
:
1745 /* disable Rx flow-control */
1746 reg
|= GM_GPCR_FC_RX_DIS
| GM_GPCR_AU_FCT_DIS
;
1749 gma_write16(hw
, port
, GM_GP_CTRL
, reg
);
1750 skge_read16(hw
, SK_REG(port
, GMAC_IRQ_SRC
));
1752 yukon_init(hw
, port
);
1755 reg
= gma_read16(hw
, port
, GM_PHY_ADDR
);
1756 gma_write16(hw
, port
, GM_PHY_ADDR
, reg
| GM_PAR_MIB_CLR
);
1758 for (i
= 0; i
< GM_MIB_CNT_SIZE
; i
++)
1759 gma_read16(hw
, port
, GM_MIB_CNT_BASE
+ 8*i
);
1760 gma_write16(hw
, port
, GM_PHY_ADDR
, reg
);
1762 /* transmit control */
1763 gma_write16(hw
, port
, GM_TX_CTRL
, TX_COL_THR(TX_COL_DEF
));
1765 /* receive control reg: unicast + multicast + no FCS */
1766 gma_write16(hw
, port
, GM_RX_CTRL
,
1767 GM_RXCR_UCF_ENA
| GM_RXCR_CRC_DIS
| GM_RXCR_MCF_ENA
);
1769 /* transmit flow control */
1770 gma_write16(hw
, port
, GM_TX_FLOW_CTRL
, 0xffff);
1772 /* transmit parameter */
1773 gma_write16(hw
, port
, GM_TX_PARAM
,
1774 TX_JAM_LEN_VAL(TX_JAM_LEN_DEF
) |
1775 TX_JAM_IPG_VAL(TX_JAM_IPG_DEF
) |
1776 TX_IPG_JAM_DATA(TX_IPG_JAM_DEF
));
1778 /* serial mode register */
1779 reg
= GM_SMOD_VLAN_ENA
| IPG_DATA_VAL(IPG_DATA_DEF
);
1780 if (hw
->dev
[port
]->mtu
> 1500)
1781 reg
|= GM_SMOD_JUMBO_ENA
;
1783 gma_write16(hw
, port
, GM_SERIAL_MODE
, reg
);
1785 /* physical address: used for pause frames */
1786 gma_set_addr(hw
, port
, GM_SRC_ADDR_1L
, addr
);
1787 /* virtual address for data */
1788 gma_set_addr(hw
, port
, GM_SRC_ADDR_2L
, addr
);
1790 /* enable interrupt mask for counter overflows */
1791 gma_write16(hw
, port
, GM_TX_IRQ_MSK
, 0);
1792 gma_write16(hw
, port
, GM_RX_IRQ_MSK
, 0);
1793 gma_write16(hw
, port
, GM_TR_IRQ_MSK
, 0);
1795 /* Initialize Mac Fifo */
1797 /* Configure Rx MAC FIFO */
1798 skge_write16(hw
, SK_REG(port
, RX_GMF_FL_MSK
), RX_FF_FL_DEF_MSK
);
1799 reg
= GMF_OPER_ON
| GMF_RX_F_FL_ON
;
1801 /* disable Rx GMAC FIFO Flush for YUKON-Lite Rev. A0 only */
1802 if (is_yukon_lite_a0(hw
))
1803 reg
&= ~GMF_RX_F_FL_ON
;
1805 skge_write8(hw
, SK_REG(port
, RX_GMF_CTRL_T
), GMF_RST_CLR
);
1806 skge_write16(hw
, SK_REG(port
, RX_GMF_CTRL_T
), reg
);
1808 * because Pause Packet Truncation in GMAC is not working
1809 * we have to increase the Flush Threshold to 64 bytes
1810 * in order to flush pause packets in Rx FIFO on Yukon-1
1812 skge_write16(hw
, SK_REG(port
, RX_GMF_FL_THR
), RX_GMF_FL_THR_DEF
+1);
1814 /* Configure Tx MAC FIFO */
1815 skge_write8(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_RST_CLR
);
1816 skge_write16(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_OPER_ON
);
1819 /* Go into power down mode */
1820 static void yukon_suspend(struct skge_hw
*hw
, int port
)
1824 ctrl
= gm_phy_read(hw
, port
, PHY_MARV_PHY_CTRL
);
1825 ctrl
|= PHY_M_PC_POL_R_DIS
;
1826 gm_phy_write(hw
, port
, PHY_MARV_PHY_CTRL
, ctrl
);
1828 ctrl
= gm_phy_read(hw
, port
, PHY_MARV_CTRL
);
1829 ctrl
|= PHY_CT_RESET
;
1830 gm_phy_write(hw
, port
, PHY_MARV_CTRL
, ctrl
);
1832 /* switch IEEE compatible power down mode on */
1833 ctrl
= gm_phy_read(hw
, port
, PHY_MARV_CTRL
);
1834 ctrl
|= PHY_CT_PDOWN
;
1835 gm_phy_write(hw
, port
, PHY_MARV_CTRL
, ctrl
);
1838 static void yukon_stop(struct skge_port
*skge
)
1840 struct skge_hw
*hw
= skge
->hw
;
1841 int port
= skge
->port
;
1843 skge_write8(hw
, SK_REG(port
, GMAC_IRQ_MSK
), 0);
1844 yukon_reset(hw
, port
);
1846 gma_write16(hw
, port
, GM_GP_CTRL
,
1847 gma_read16(hw
, port
, GM_GP_CTRL
)
1848 & ~(GM_GPCR_TX_ENA
|GM_GPCR_RX_ENA
));
1849 gma_read16(hw
, port
, GM_GP_CTRL
);
1851 yukon_suspend(hw
, port
);
1853 /* set GPHY Control reset */
1854 skge_write8(hw
, SK_REG(port
, GPHY_CTRL
), GPC_RST_SET
);
1855 skge_write8(hw
, SK_REG(port
, GMAC_CTRL
), GMC_RST_SET
);
1858 static void yukon_get_stats(struct skge_port
*skge
, u64
*data
)
1860 struct skge_hw
*hw
= skge
->hw
;
1861 int port
= skge
->port
;
1864 data
[0] = (u64
) gma_read32(hw
, port
, GM_TXO_OK_HI
) << 32
1865 | gma_read32(hw
, port
, GM_TXO_OK_LO
);
1866 data
[1] = (u64
) gma_read32(hw
, port
, GM_RXO_OK_HI
) << 32
1867 | gma_read32(hw
, port
, GM_RXO_OK_LO
);
1869 for (i
= 2; i
< ARRAY_SIZE(skge_stats
); i
++)
1870 data
[i
] = gma_read32(hw
, port
,
1871 skge_stats
[i
].gma_offset
);
1874 static void yukon_mac_intr(struct skge_hw
*hw
, int port
)
1876 struct net_device
*dev
= hw
->dev
[port
];
1877 struct skge_port
*skge
= netdev_priv(dev
);
1878 u8 status
= skge_read8(hw
, SK_REG(port
, GMAC_IRQ_SRC
));
1880 if (netif_msg_intr(skge
))
1881 printk(KERN_DEBUG PFX
"%s: mac interrupt status 0x%x\n",
1884 if (status
& GM_IS_RX_FF_OR
) {
1885 ++skge
->net_stats
.rx_fifo_errors
;
1886 skge_write8(hw
, SK_REG(port
, RX_GMF_CTRL_T
), GMF_CLI_RX_FO
);
1889 if (status
& GM_IS_TX_FF_UR
) {
1890 ++skge
->net_stats
.tx_fifo_errors
;
1891 skge_write8(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_CLI_TX_FU
);
1896 static u16
yukon_speed(const struct skge_hw
*hw
, u16 aux
)
1898 switch (aux
& PHY_M_PS_SPEED_MSK
) {
1899 case PHY_M_PS_SPEED_1000
:
1901 case PHY_M_PS_SPEED_100
:
1908 static void yukon_link_up(struct skge_port
*skge
)
1910 struct skge_hw
*hw
= skge
->hw
;
1911 int port
= skge
->port
;
1914 /* Enable Transmit FIFO Underrun */
1915 skge_write8(hw
, SK_REG(port
, GMAC_IRQ_MSK
), GMAC_DEF_MSK
);
1917 reg
= gma_read16(hw
, port
, GM_GP_CTRL
);
1918 if (skge
->duplex
== DUPLEX_FULL
|| skge
->autoneg
== AUTONEG_ENABLE
)
1919 reg
|= GM_GPCR_DUP_FULL
;
1922 reg
|= GM_GPCR_RX_ENA
| GM_GPCR_TX_ENA
;
1923 gma_write16(hw
, port
, GM_GP_CTRL
, reg
);
1925 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, PHY_M_IS_DEF_MSK
);
1929 static void yukon_link_down(struct skge_port
*skge
)
1931 struct skge_hw
*hw
= skge
->hw
;
1932 int port
= skge
->port
;
1935 gm_phy_write(hw
, port
, PHY_MARV_INT_MASK
, 0);
1937 ctrl
= gma_read16(hw
, port
, GM_GP_CTRL
);
1938 ctrl
&= ~(GM_GPCR_RX_ENA
| GM_GPCR_TX_ENA
);
1939 gma_write16(hw
, port
, GM_GP_CTRL
, ctrl
);
1941 if (skge
->flow_control
== FLOW_MODE_REM_SEND
) {
1942 /* restore Asymmetric Pause bit */
1943 gm_phy_write(hw
, port
, PHY_MARV_AUNE_ADV
,
1944 gm_phy_read(hw
, port
,
1950 yukon_reset(hw
, port
);
1951 skge_link_down(skge
);
1953 yukon_init(hw
, port
);
1956 static void yukon_phy_intr(struct skge_port
*skge
)
1958 struct skge_hw
*hw
= skge
->hw
;
1959 int port
= skge
->port
;
1960 const char *reason
= NULL
;
1961 u16 istatus
, phystat
;
1963 istatus
= gm_phy_read(hw
, port
, PHY_MARV_INT_STAT
);
1964 phystat
= gm_phy_read(hw
, port
, PHY_MARV_PHY_STAT
);
1966 if (netif_msg_intr(skge
))
1967 printk(KERN_DEBUG PFX
"%s: phy interrupt status 0x%x 0x%x\n",
1968 skge
->netdev
->name
, istatus
, phystat
);
1970 if (istatus
& PHY_M_IS_AN_COMPL
) {
1971 if (gm_phy_read(hw
, port
, PHY_MARV_AUNE_LP
)
1973 reason
= "remote fault";
1977 if (gm_phy_read(hw
, port
, PHY_MARV_1000T_STAT
) & PHY_B_1000S_MSF
) {
1978 reason
= "master/slave fault";
1982 if (!(phystat
& PHY_M_PS_SPDUP_RES
)) {
1983 reason
= "speed/duplex";
1987 skge
->duplex
= (phystat
& PHY_M_PS_FULL_DUP
)
1988 ? DUPLEX_FULL
: DUPLEX_HALF
;
1989 skge
->speed
= yukon_speed(hw
, phystat
);
1991 /* We are using IEEE 802.3z/D5.0 Table 37-4 */
1992 switch (phystat
& PHY_M_PS_PAUSE_MSK
) {
1993 case PHY_M_PS_PAUSE_MSK
:
1994 skge
->flow_control
= FLOW_MODE_SYMMETRIC
;
1996 case PHY_M_PS_RX_P_EN
:
1997 skge
->flow_control
= FLOW_MODE_REM_SEND
;
1999 case PHY_M_PS_TX_P_EN
:
2000 skge
->flow_control
= FLOW_MODE_LOC_SEND
;
2003 skge
->flow_control
= FLOW_MODE_NONE
;
2006 if (skge
->flow_control
== FLOW_MODE_NONE
||
2007 (skge
->speed
< SPEED_1000
&& skge
->duplex
== DUPLEX_HALF
))
2008 skge_write8(hw
, SK_REG(port
, GMAC_CTRL
), GMC_PAUSE_OFF
);
2010 skge_write8(hw
, SK_REG(port
, GMAC_CTRL
), GMC_PAUSE_ON
);
2011 yukon_link_up(skge
);
2015 if (istatus
& PHY_M_IS_LSP_CHANGE
)
2016 skge
->speed
= yukon_speed(hw
, phystat
);
2018 if (istatus
& PHY_M_IS_DUP_CHANGE
)
2019 skge
->duplex
= (phystat
& PHY_M_PS_FULL_DUP
) ? DUPLEX_FULL
: DUPLEX_HALF
;
2020 if (istatus
& PHY_M_IS_LST_CHANGE
) {
2021 if (phystat
& PHY_M_PS_LINK_UP
)
2022 yukon_link_up(skge
);
2024 yukon_link_down(skge
);
2028 printk(KERN_ERR PFX
"%s: autonegotiation failed (%s)\n",
2029 skge
->netdev
->name
, reason
);
2031 /* XXX restart autonegotiation? */
2034 static void skge_phy_reset(struct skge_port
*skge
)
2036 struct skge_hw
*hw
= skge
->hw
;
2037 int port
= skge
->port
;
2039 netif_stop_queue(skge
->netdev
);
2040 netif_carrier_off(skge
->netdev
);
2042 mutex_lock(&hw
->phy_mutex
);
2043 if (hw
->chip_id
== CHIP_ID_GENESIS
) {
2044 genesis_reset(hw
, port
);
2045 genesis_mac_init(hw
, port
);
2047 yukon_reset(hw
, port
);
2048 yukon_init(hw
, port
);
2050 mutex_unlock(&hw
->phy_mutex
);
2053 /* Basic MII support */
2054 static int skge_ioctl(struct net_device
*dev
, struct ifreq
*ifr
, int cmd
)
2056 struct mii_ioctl_data
*data
= if_mii(ifr
);
2057 struct skge_port
*skge
= netdev_priv(dev
);
2058 struct skge_hw
*hw
= skge
->hw
;
2059 int err
= -EOPNOTSUPP
;
2061 if (!netif_running(dev
))
2062 return -ENODEV
; /* Phy still in reset */
2066 data
->phy_id
= hw
->phy_addr
;
2071 mutex_lock(&hw
->phy_mutex
);
2072 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2073 err
= __xm_phy_read(hw
, skge
->port
, data
->reg_num
& 0x1f, &val
);
2075 err
= __gm_phy_read(hw
, skge
->port
, data
->reg_num
& 0x1f, &val
);
2076 mutex_unlock(&hw
->phy_mutex
);
2077 data
->val_out
= val
;
2082 if (!capable(CAP_NET_ADMIN
))
2085 mutex_lock(&hw
->phy_mutex
);
2086 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2087 err
= xm_phy_write(hw
, skge
->port
, data
->reg_num
& 0x1f,
2090 err
= gm_phy_write(hw
, skge
->port
, data
->reg_num
& 0x1f,
2092 mutex_unlock(&hw
->phy_mutex
);
2098 static void skge_ramset(struct skge_hw
*hw
, u16 q
, u32 start
, size_t len
)
2104 end
= start
+ len
- 1;
2106 skge_write8(hw
, RB_ADDR(q
, RB_CTRL
), RB_RST_CLR
);
2107 skge_write32(hw
, RB_ADDR(q
, RB_START
), start
);
2108 skge_write32(hw
, RB_ADDR(q
, RB_WP
), start
);
2109 skge_write32(hw
, RB_ADDR(q
, RB_RP
), start
);
2110 skge_write32(hw
, RB_ADDR(q
, RB_END
), end
);
2112 if (q
== Q_R1
|| q
== Q_R2
) {
2113 /* Set thresholds on receive queue's */
2114 skge_write32(hw
, RB_ADDR(q
, RB_RX_UTPP
),
2116 skge_write32(hw
, RB_ADDR(q
, RB_RX_LTPP
),
2119 /* Enable store & forward on Tx queue's because
2120 * Tx FIFO is only 4K on Genesis and 1K on Yukon
2122 skge_write8(hw
, RB_ADDR(q
, RB_CTRL
), RB_ENA_STFWD
);
2125 skge_write8(hw
, RB_ADDR(q
, RB_CTRL
), RB_ENA_OP_MD
);
2128 /* Setup Bus Memory Interface */
2129 static void skge_qset(struct skge_port
*skge
, u16 q
,
2130 const struct skge_element
*e
)
2132 struct skge_hw
*hw
= skge
->hw
;
2133 u32 watermark
= 0x600;
2134 u64 base
= skge
->dma
+ (e
->desc
- skge
->mem
);
2136 /* optimization to reduce window on 32bit/33mhz */
2137 if ((skge_read16(hw
, B0_CTST
) & (CS_BUS_CLOCK
| CS_BUS_SLOT_SZ
)) == 0)
2140 skge_write32(hw
, Q_ADDR(q
, Q_CSR
), CSR_CLR_RESET
);
2141 skge_write32(hw
, Q_ADDR(q
, Q_F
), watermark
);
2142 skge_write32(hw
, Q_ADDR(q
, Q_DA_H
), (u32
)(base
>> 32));
2143 skge_write32(hw
, Q_ADDR(q
, Q_DA_L
), (u32
)base
);
2146 static int skge_up(struct net_device
*dev
)
2148 struct skge_port
*skge
= netdev_priv(dev
);
2149 struct skge_hw
*hw
= skge
->hw
;
2150 int port
= skge
->port
;
2151 u32 chunk
, ram_addr
;
2152 size_t rx_size
, tx_size
;
2155 if (netif_msg_ifup(skge
))
2156 printk(KERN_INFO PFX
"%s: enabling interface\n", dev
->name
);
2158 if (dev
->mtu
> RX_BUF_SIZE
)
2159 skge
->rx_buf_size
= dev
->mtu
+ ETH_HLEN
;
2161 skge
->rx_buf_size
= RX_BUF_SIZE
;
2164 rx_size
= skge
->rx_ring
.count
* sizeof(struct skge_rx_desc
);
2165 tx_size
= skge
->tx_ring
.count
* sizeof(struct skge_tx_desc
);
2166 skge
->mem_size
= tx_size
+ rx_size
;
2167 skge
->mem
= pci_alloc_consistent(hw
->pdev
, skge
->mem_size
, &skge
->dma
);
2171 BUG_ON(skge
->dma
& 7);
2173 if ((u64
)skge
->dma
>> 32 != ((u64
) skge
->dma
+ skge
->mem_size
) >> 32) {
2174 printk(KERN_ERR PFX
"pci_alloc_consistent region crosses 4G boundary\n");
2179 memset(skge
->mem
, 0, skge
->mem_size
);
2181 err
= skge_ring_alloc(&skge
->rx_ring
, skge
->mem
, skge
->dma
);
2185 err
= skge_rx_fill(skge
);
2189 err
= skge_ring_alloc(&skge
->tx_ring
, skge
->mem
+ rx_size
,
2190 skge
->dma
+ rx_size
);
2194 /* Initialize MAC */
2195 mutex_lock(&hw
->phy_mutex
);
2196 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2197 genesis_mac_init(hw
, port
);
2199 yukon_mac_init(hw
, port
);
2200 mutex_unlock(&hw
->phy_mutex
);
2202 /* Configure RAMbuffers */
2203 chunk
= hw
->ram_size
/ ((hw
->ports
+ 1)*2);
2204 ram_addr
= hw
->ram_offset
+ 2 * chunk
* port
;
2206 skge_ramset(hw
, rxqaddr
[port
], ram_addr
, chunk
);
2207 skge_qset(skge
, rxqaddr
[port
], skge
->rx_ring
.to_clean
);
2209 BUG_ON(skge
->tx_ring
.to_use
!= skge
->tx_ring
.to_clean
);
2210 skge_ramset(hw
, txqaddr
[port
], ram_addr
+chunk
, chunk
);
2211 skge_qset(skge
, txqaddr
[port
], skge
->tx_ring
.to_use
);
2213 /* Start receiver BMU */
2215 skge_write8(hw
, Q_ADDR(rxqaddr
[port
], Q_CSR
), CSR_START
| CSR_IRQ_CL_F
);
2216 skge_led(skge
, LED_MODE_ON
);
2221 skge_rx_clean(skge
);
2222 kfree(skge
->rx_ring
.start
);
2224 pci_free_consistent(hw
->pdev
, skge
->mem_size
, skge
->mem
, skge
->dma
);
2230 static int skge_down(struct net_device
*dev
)
2232 struct skge_port
*skge
= netdev_priv(dev
);
2233 struct skge_hw
*hw
= skge
->hw
;
2234 int port
= skge
->port
;
2236 if (skge
->mem
== NULL
)
2239 if (netif_msg_ifdown(skge
))
2240 printk(KERN_INFO PFX
"%s: disabling interface\n", dev
->name
);
2242 netif_stop_queue(dev
);
2244 skge_write8(skge
->hw
, SK_REG(skge
->port
, LNK_LED_REG
), LED_OFF
);
2245 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2250 /* Stop transmitter */
2251 skge_write8(hw
, Q_ADDR(txqaddr
[port
], Q_CSR
), CSR_STOP
);
2252 skge_write32(hw
, RB_ADDR(txqaddr
[port
], RB_CTRL
),
2253 RB_RST_SET
|RB_DIS_OP_MD
);
2256 /* Disable Force Sync bit and Enable Alloc bit */
2257 skge_write8(hw
, SK_REG(port
, TXA_CTRL
),
2258 TXA_DIS_FSYNC
| TXA_DIS_ALLOC
| TXA_STOP_RC
);
2260 /* Stop Interval Timer and Limit Counter of Tx Arbiter */
2261 skge_write32(hw
, SK_REG(port
, TXA_ITI_INI
), 0L);
2262 skge_write32(hw
, SK_REG(port
, TXA_LIM_INI
), 0L);
2264 /* Reset PCI FIFO */
2265 skge_write32(hw
, Q_ADDR(txqaddr
[port
], Q_CSR
), CSR_SET_RESET
);
2266 skge_write32(hw
, RB_ADDR(txqaddr
[port
], RB_CTRL
), RB_RST_SET
);
2268 /* Reset the RAM Buffer async Tx queue */
2269 skge_write8(hw
, RB_ADDR(port
== 0 ? Q_XA1
: Q_XA2
, RB_CTRL
), RB_RST_SET
);
2271 skge_write8(hw
, Q_ADDR(rxqaddr
[port
], Q_CSR
), CSR_STOP
);
2272 skge_write32(hw
, RB_ADDR(port
? Q_R2
: Q_R1
, RB_CTRL
),
2273 RB_RST_SET
|RB_DIS_OP_MD
);
2274 skge_write32(hw
, Q_ADDR(rxqaddr
[port
], Q_CSR
), CSR_SET_RESET
);
2276 if (hw
->chip_id
== CHIP_ID_GENESIS
) {
2277 skge_write8(hw
, SK_REG(port
, TX_MFF_CTRL2
), MFF_RST_SET
);
2278 skge_write8(hw
, SK_REG(port
, RX_MFF_CTRL2
), MFF_RST_SET
);
2280 skge_write8(hw
, SK_REG(port
, RX_GMF_CTRL_T
), GMF_RST_SET
);
2281 skge_write8(hw
, SK_REG(port
, TX_GMF_CTRL_T
), GMF_RST_SET
);
2284 skge_led(skge
, LED_MODE_OFF
);
2286 skge_tx_clean(skge
);
2287 skge_rx_clean(skge
);
2289 kfree(skge
->rx_ring
.start
);
2290 kfree(skge
->tx_ring
.start
);
2291 pci_free_consistent(hw
->pdev
, skge
->mem_size
, skge
->mem
, skge
->dma
);
2296 static inline int skge_avail(const struct skge_ring
*ring
)
2298 return ((ring
->to_clean
> ring
->to_use
) ? 0 : ring
->count
)
2299 + (ring
->to_clean
- ring
->to_use
) - 1;
2302 static int skge_xmit_frame(struct sk_buff
*skb
, struct net_device
*dev
)
2304 struct skge_port
*skge
= netdev_priv(dev
);
2305 struct skge_hw
*hw
= skge
->hw
;
2306 struct skge_element
*e
;
2307 struct skge_tx_desc
*td
;
2311 unsigned long flags
;
2313 if (skb_padto(skb
, ETH_ZLEN
))
2314 return NETDEV_TX_OK
;
2316 if (!spin_trylock_irqsave(&skge
->tx_lock
, flags
))
2317 /* Collision - tell upper layer to requeue */
2318 return NETDEV_TX_LOCKED
;
2320 if (unlikely(skge_avail(&skge
->tx_ring
) < skb_shinfo(skb
)->nr_frags
+ 1)) {
2321 if (!netif_queue_stopped(dev
)) {
2322 netif_stop_queue(dev
);
2324 printk(KERN_WARNING PFX
"%s: ring full when queue awake!\n",
2327 spin_unlock_irqrestore(&skge
->tx_lock
, flags
);
2328 return NETDEV_TX_BUSY
;
2331 e
= skge
->tx_ring
.to_use
;
2333 BUG_ON(td
->control
& BMU_OWN
);
2335 len
= skb_headlen(skb
);
2336 map
= pci_map_single(hw
->pdev
, skb
->data
, len
, PCI_DMA_TODEVICE
);
2337 pci_unmap_addr_set(e
, mapaddr
, map
);
2338 pci_unmap_len_set(e
, maplen
, len
);
2341 td
->dma_hi
= map
>> 32;
2343 if (skb
->ip_summed
== CHECKSUM_HW
) {
2344 int offset
= skb
->h
.raw
- skb
->data
;
2346 /* This seems backwards, but it is what the sk98lin
2347 * does. Looks like hardware is wrong?
2349 if (skb
->h
.ipiph
->protocol
== IPPROTO_UDP
2350 && hw
->chip_rev
== 0 && hw
->chip_id
== CHIP_ID_YUKON
)
2351 control
= BMU_TCP_CHECK
;
2353 control
= BMU_UDP_CHECK
;
2356 td
->csum_start
= offset
;
2357 td
->csum_write
= offset
+ skb
->csum
;
2359 control
= BMU_CHECK
;
2361 if (!skb_shinfo(skb
)->nr_frags
) /* single buffer i.e. no fragments */
2362 control
|= BMU_EOF
| BMU_IRQ_EOF
;
2364 struct skge_tx_desc
*tf
= td
;
2366 control
|= BMU_STFWD
;
2367 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++) {
2368 skb_frag_t
*frag
= &skb_shinfo(skb
)->frags
[i
];
2370 map
= pci_map_page(hw
->pdev
, frag
->page
, frag
->page_offset
,
2371 frag
->size
, PCI_DMA_TODEVICE
);
2376 BUG_ON(tf
->control
& BMU_OWN
);
2379 tf
->dma_hi
= (u64
) map
>> 32;
2380 pci_unmap_addr_set(e
, mapaddr
, map
);
2381 pci_unmap_len_set(e
, maplen
, frag
->size
);
2383 tf
->control
= BMU_OWN
| BMU_SW
| control
| frag
->size
;
2385 tf
->control
|= BMU_EOF
| BMU_IRQ_EOF
;
2387 /* Make sure all the descriptors written */
2389 td
->control
= BMU_OWN
| BMU_SW
| BMU_STF
| control
| len
;
2392 skge_write8(hw
, Q_ADDR(txqaddr
[skge
->port
], Q_CSR
), CSR_START
);
2394 if (unlikely(netif_msg_tx_queued(skge
)))
2395 printk(KERN_DEBUG
"%s: tx queued, slot %td, len %d\n",
2396 dev
->name
, e
- skge
->tx_ring
.start
, skb
->len
);
2398 skge
->tx_ring
.to_use
= e
->next
;
2399 if (skge_avail(&skge
->tx_ring
) <= TX_LOW_WATER
) {
2400 pr_debug("%s: transmit queue full\n", dev
->name
);
2401 netif_stop_queue(dev
);
2404 spin_unlock_irqrestore(&skge
->tx_lock
, flags
);
2406 dev
->trans_start
= jiffies
;
2408 return NETDEV_TX_OK
;
2412 /* Free resources associated with this reing element */
2413 static void skge_tx_free(struct skge_port
*skge
, struct skge_element
*e
,
2416 struct pci_dev
*pdev
= skge
->hw
->pdev
;
2420 /* skb header vs. fragment */
2421 if (control
& BMU_STF
)
2422 pci_unmap_single(pdev
, pci_unmap_addr(e
, mapaddr
),
2423 pci_unmap_len(e
, maplen
),
2426 pci_unmap_page(pdev
, pci_unmap_addr(e
, mapaddr
),
2427 pci_unmap_len(e
, maplen
),
2430 if (control
& BMU_EOF
) {
2431 if (unlikely(netif_msg_tx_done(skge
)))
2432 printk(KERN_DEBUG PFX
"%s: tx done slot %td\n",
2433 skge
->netdev
->name
, e
- skge
->tx_ring
.start
);
2435 dev_kfree_skb_any(e
->skb
);
2440 /* Free all buffers in transmit ring */
2441 static void skge_tx_clean(struct skge_port
*skge
)
2443 struct skge_element
*e
;
2444 unsigned long flags
;
2446 spin_lock_irqsave(&skge
->tx_lock
, flags
);
2447 for (e
= skge
->tx_ring
.to_clean
; e
!= skge
->tx_ring
.to_use
; e
= e
->next
) {
2448 struct skge_tx_desc
*td
= e
->desc
;
2449 skge_tx_free(skge
, e
, td
->control
);
2453 skge
->tx_ring
.to_clean
= e
;
2454 netif_wake_queue(skge
->netdev
);
2455 spin_unlock_irqrestore(&skge
->tx_lock
, flags
);
2458 static void skge_tx_timeout(struct net_device
*dev
)
2460 struct skge_port
*skge
= netdev_priv(dev
);
2462 if (netif_msg_timer(skge
))
2463 printk(KERN_DEBUG PFX
"%s: tx timeout\n", dev
->name
);
2465 skge_write8(skge
->hw
, Q_ADDR(txqaddr
[skge
->port
], Q_CSR
), CSR_STOP
);
2466 skge_tx_clean(skge
);
2469 static int skge_change_mtu(struct net_device
*dev
, int new_mtu
)
2473 if (new_mtu
< ETH_ZLEN
|| new_mtu
> ETH_JUMBO_MTU
)
2476 if (!netif_running(dev
)) {
2492 static void genesis_set_multicast(struct net_device
*dev
)
2494 struct skge_port
*skge
= netdev_priv(dev
);
2495 struct skge_hw
*hw
= skge
->hw
;
2496 int port
= skge
->port
;
2497 int i
, count
= dev
->mc_count
;
2498 struct dev_mc_list
*list
= dev
->mc_list
;
2502 mode
= xm_read32(hw
, port
, XM_MODE
);
2503 mode
|= XM_MD_ENA_HASH
;
2504 if (dev
->flags
& IFF_PROMISC
)
2505 mode
|= XM_MD_ENA_PROM
;
2507 mode
&= ~XM_MD_ENA_PROM
;
2509 if (dev
->flags
& IFF_ALLMULTI
)
2510 memset(filter
, 0xff, sizeof(filter
));
2512 memset(filter
, 0, sizeof(filter
));
2513 for (i
= 0; list
&& i
< count
; i
++, list
= list
->next
) {
2515 crc
= ether_crc_le(ETH_ALEN
, list
->dmi_addr
);
2517 filter
[bit
/8] |= 1 << (bit
%8);
2521 xm_write32(hw
, port
, XM_MODE
, mode
);
2522 xm_outhash(hw
, port
, XM_HSM
, filter
);
2525 static void yukon_set_multicast(struct net_device
*dev
)
2527 struct skge_port
*skge
= netdev_priv(dev
);
2528 struct skge_hw
*hw
= skge
->hw
;
2529 int port
= skge
->port
;
2530 struct dev_mc_list
*list
= dev
->mc_list
;
2534 memset(filter
, 0, sizeof(filter
));
2536 reg
= gma_read16(hw
, port
, GM_RX_CTRL
);
2537 reg
|= GM_RXCR_UCF_ENA
;
2539 if (dev
->flags
& IFF_PROMISC
) /* promiscuous */
2540 reg
&= ~(GM_RXCR_UCF_ENA
| GM_RXCR_MCF_ENA
);
2541 else if (dev
->flags
& IFF_ALLMULTI
) /* all multicast */
2542 memset(filter
, 0xff, sizeof(filter
));
2543 else if (dev
->mc_count
== 0) /* no multicast */
2544 reg
&= ~GM_RXCR_MCF_ENA
;
2547 reg
|= GM_RXCR_MCF_ENA
;
2549 for (i
= 0; list
&& i
< dev
->mc_count
; i
++, list
= list
->next
) {
2550 u32 bit
= ether_crc(ETH_ALEN
, list
->dmi_addr
) & 0x3f;
2551 filter
[bit
/8] |= 1 << (bit
%8);
2556 gma_write16(hw
, port
, GM_MC_ADDR_H1
,
2557 (u16
)filter
[0] | ((u16
)filter
[1] << 8));
2558 gma_write16(hw
, port
, GM_MC_ADDR_H2
,
2559 (u16
)filter
[2] | ((u16
)filter
[3] << 8));
2560 gma_write16(hw
, port
, GM_MC_ADDR_H3
,
2561 (u16
)filter
[4] | ((u16
)filter
[5] << 8));
2562 gma_write16(hw
, port
, GM_MC_ADDR_H4
,
2563 (u16
)filter
[6] | ((u16
)filter
[7] << 8));
2565 gma_write16(hw
, port
, GM_RX_CTRL
, reg
);
2568 static inline u16
phy_length(const struct skge_hw
*hw
, u32 status
)
2570 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2571 return status
>> XMR_FS_LEN_SHIFT
;
2573 return status
>> GMR_FS_LEN_SHIFT
;
2576 static inline int bad_phy_status(const struct skge_hw
*hw
, u32 status
)
2578 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2579 return (status
& (XMR_FS_ERR
| XMR_FS_2L_VLAN
)) != 0;
2581 return (status
& GMR_FS_ANY_ERR
) ||
2582 (status
& GMR_FS_RX_OK
) == 0;
2586 /* Get receive buffer from descriptor.
2587 * Handles copy of small buffers and reallocation failures
2589 static inline struct sk_buff
*skge_rx_get(struct skge_port
*skge
,
2590 struct skge_element
*e
,
2591 u32 control
, u32 status
, u16 csum
)
2593 struct sk_buff
*skb
;
2594 u16 len
= control
& BMU_BBC
;
2596 if (unlikely(netif_msg_rx_status(skge
)))
2597 printk(KERN_DEBUG PFX
"%s: rx slot %td status 0x%x len %d\n",
2598 skge
->netdev
->name
, e
- skge
->rx_ring
.start
,
2601 if (len
> skge
->rx_buf_size
)
2604 if ((control
& (BMU_EOF
|BMU_STF
)) != (BMU_STF
|BMU_EOF
))
2607 if (bad_phy_status(skge
->hw
, status
))
2610 if (phy_length(skge
->hw
, status
) != len
)
2613 if (len
< RX_COPY_THRESHOLD
) {
2614 skb
= alloc_skb(len
+ 2, GFP_ATOMIC
);
2618 skb_reserve(skb
, 2);
2619 pci_dma_sync_single_for_cpu(skge
->hw
->pdev
,
2620 pci_unmap_addr(e
, mapaddr
),
2621 len
, PCI_DMA_FROMDEVICE
);
2622 memcpy(skb
->data
, e
->skb
->data
, len
);
2623 pci_dma_sync_single_for_device(skge
->hw
->pdev
,
2624 pci_unmap_addr(e
, mapaddr
),
2625 len
, PCI_DMA_FROMDEVICE
);
2626 skge_rx_reuse(e
, skge
->rx_buf_size
);
2628 struct sk_buff
*nskb
;
2629 nskb
= alloc_skb(skge
->rx_buf_size
+ NET_IP_ALIGN
, GFP_ATOMIC
);
2633 skb_reserve(nskb
, NET_IP_ALIGN
);
2634 pci_unmap_single(skge
->hw
->pdev
,
2635 pci_unmap_addr(e
, mapaddr
),
2636 pci_unmap_len(e
, maplen
),
2637 PCI_DMA_FROMDEVICE
);
2639 prefetch(skb
->data
);
2640 skge_rx_setup(skge
, e
, nskb
, skge
->rx_buf_size
);
2644 skb
->dev
= skge
->netdev
;
2645 if (skge
->rx_csum
) {
2647 skb
->ip_summed
= CHECKSUM_HW
;
2650 skb
->protocol
= eth_type_trans(skb
, skge
->netdev
);
2655 if (netif_msg_rx_err(skge
))
2656 printk(KERN_DEBUG PFX
"%s: rx err, slot %td control 0x%x status 0x%x\n",
2657 skge
->netdev
->name
, e
- skge
->rx_ring
.start
,
2660 if (skge
->hw
->chip_id
== CHIP_ID_GENESIS
) {
2661 if (status
& (XMR_FS_RUNT
|XMR_FS_LNG_ERR
))
2662 skge
->net_stats
.rx_length_errors
++;
2663 if (status
& XMR_FS_FRA_ERR
)
2664 skge
->net_stats
.rx_frame_errors
++;
2665 if (status
& XMR_FS_FCS_ERR
)
2666 skge
->net_stats
.rx_crc_errors
++;
2668 if (status
& (GMR_FS_LONG_ERR
|GMR_FS_UN_SIZE
))
2669 skge
->net_stats
.rx_length_errors
++;
2670 if (status
& GMR_FS_FRAGMENT
)
2671 skge
->net_stats
.rx_frame_errors
++;
2672 if (status
& GMR_FS_CRC_ERR
)
2673 skge
->net_stats
.rx_crc_errors
++;
2677 skge_rx_reuse(e
, skge
->rx_buf_size
);
2681 /* Free all buffers in Tx ring which are no longer owned by device */
2682 static void skge_txirq(struct net_device
*dev
)
2684 struct skge_port
*skge
= netdev_priv(dev
);
2685 struct skge_ring
*ring
= &skge
->tx_ring
;
2686 struct skge_element
*e
;
2690 spin_lock(&skge
->tx_lock
);
2691 for (e
= ring
->to_clean
; e
!= ring
->to_use
; e
= e
->next
) {
2692 struct skge_tx_desc
*td
= e
->desc
;
2694 if (td
->control
& BMU_OWN
)
2697 skge_tx_free(skge
, e
, td
->control
);
2699 skge
->tx_ring
.to_clean
= e
;
2701 if (netif_queue_stopped(skge
->netdev
)
2702 && skge_avail(&skge
->tx_ring
) > TX_LOW_WATER
)
2703 netif_wake_queue(skge
->netdev
);
2705 spin_unlock(&skge
->tx_lock
);
2708 static int skge_poll(struct net_device
*dev
, int *budget
)
2710 struct skge_port
*skge
= netdev_priv(dev
);
2711 struct skge_hw
*hw
= skge
->hw
;
2712 struct skge_ring
*ring
= &skge
->rx_ring
;
2713 struct skge_element
*e
;
2714 int to_do
= min(dev
->quota
, *budget
);
2717 for (e
= ring
->to_clean
; prefetch(e
->next
), work_done
< to_do
; e
= e
->next
) {
2718 struct skge_rx_desc
*rd
= e
->desc
;
2719 struct sk_buff
*skb
;
2723 control
= rd
->control
;
2724 if (control
& BMU_OWN
)
2727 skb
= skge_rx_get(skge
, e
, control
, rd
->status
, rd
->csum2
);
2729 dev
->last_rx
= jiffies
;
2730 netif_receive_skb(skb
);
2737 /* restart receiver */
2739 skge_write8(hw
, Q_ADDR(rxqaddr
[skge
->port
], Q_CSR
), CSR_START
);
2741 *budget
-= work_done
;
2742 dev
->quota
-= work_done
;
2744 if (work_done
>= to_do
)
2745 return 1; /* not done */
2747 netif_rx_complete(dev
);
2749 spin_lock_irq(&hw
->hw_lock
);
2750 hw
->intr_mask
|= rxirqmask
[skge
->port
];
2751 skge_write32(hw
, B0_IMSK
, hw
->intr_mask
);
2753 spin_unlock_irq(&hw
->hw_lock
);
2758 /* Parity errors seem to happen when Genesis is connected to a switch
2759 * with no other ports present. Heartbeat error??
2761 static void skge_mac_parity(struct skge_hw
*hw
, int port
)
2763 struct net_device
*dev
= hw
->dev
[port
];
2766 struct skge_port
*skge
= netdev_priv(dev
);
2767 ++skge
->net_stats
.tx_heartbeat_errors
;
2770 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2771 skge_write16(hw
, SK_REG(port
, TX_MFF_CTRL1
),
2774 /* HW-Bug #8: cleared by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE */
2775 skge_write8(hw
, SK_REG(port
, TX_GMF_CTRL_T
),
2776 (hw
->chip_id
== CHIP_ID_YUKON
&& hw
->chip_rev
== 0)
2777 ? GMF_CLI_TX_FC
: GMF_CLI_TX_PE
);
2780 static void skge_mac_intr(struct skge_hw
*hw
, int port
)
2782 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2783 genesis_mac_intr(hw
, port
);
2785 yukon_mac_intr(hw
, port
);
2788 /* Handle device specific framing and timeout interrupts */
2789 static void skge_error_irq(struct skge_hw
*hw
)
2791 u32 hwstatus
= skge_read32(hw
, B0_HWE_ISRC
);
2793 if (hw
->chip_id
== CHIP_ID_GENESIS
) {
2794 /* clear xmac errors */
2795 if (hwstatus
& (IS_NO_STAT_M1
|IS_NO_TIST_M1
))
2796 skge_write16(hw
, RX_MFF_CTRL1
, MFF_CLR_INSTAT
);
2797 if (hwstatus
& (IS_NO_STAT_M2
|IS_NO_TIST_M2
))
2798 skge_write16(hw
, RX_MFF_CTRL2
, MFF_CLR_INSTAT
);
2800 /* Timestamp (unused) overflow */
2801 if (hwstatus
& IS_IRQ_TIST_OV
)
2802 skge_write8(hw
, GMAC_TI_ST_CTRL
, GMT_ST_CLR_IRQ
);
2805 if (hwstatus
& IS_RAM_RD_PAR
) {
2806 printk(KERN_ERR PFX
"Ram read data parity error\n");
2807 skge_write16(hw
, B3_RI_CTRL
, RI_CLR_RD_PERR
);
2810 if (hwstatus
& IS_RAM_WR_PAR
) {
2811 printk(KERN_ERR PFX
"Ram write data parity error\n");
2812 skge_write16(hw
, B3_RI_CTRL
, RI_CLR_WR_PERR
);
2815 if (hwstatus
& IS_M1_PAR_ERR
)
2816 skge_mac_parity(hw
, 0);
2818 if (hwstatus
& IS_M2_PAR_ERR
)
2819 skge_mac_parity(hw
, 1);
2821 if (hwstatus
& IS_R1_PAR_ERR
) {
2822 printk(KERN_ERR PFX
"%s: receive queue parity error\n",
2824 skge_write32(hw
, B0_R1_CSR
, CSR_IRQ_CL_P
);
2827 if (hwstatus
& IS_R2_PAR_ERR
) {
2828 printk(KERN_ERR PFX
"%s: receive queue parity error\n",
2830 skge_write32(hw
, B0_R2_CSR
, CSR_IRQ_CL_P
);
2833 if (hwstatus
& (IS_IRQ_MST_ERR
|IS_IRQ_STAT
)) {
2834 u16 pci_status
, pci_cmd
;
2836 pci_read_config_word(hw
->pdev
, PCI_COMMAND
, &pci_cmd
);
2837 pci_read_config_word(hw
->pdev
, PCI_STATUS
, &pci_status
);
2839 printk(KERN_ERR PFX
"%s: PCI error cmd=%#x status=%#x\n",
2840 pci_name(hw
->pdev
), pci_cmd
, pci_status
);
2842 /* Write the error bits back to clear them. */
2843 pci_status
&= PCI_STATUS_ERROR_BITS
;
2844 skge_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_ON
);
2845 pci_write_config_word(hw
->pdev
, PCI_COMMAND
,
2846 pci_cmd
| PCI_COMMAND_SERR
| PCI_COMMAND_PARITY
);
2847 pci_write_config_word(hw
->pdev
, PCI_STATUS
, pci_status
);
2848 skge_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_OFF
);
2850 /* if error still set then just ignore it */
2851 hwstatus
= skge_read32(hw
, B0_HWE_ISRC
);
2852 if (hwstatus
& IS_IRQ_STAT
) {
2853 printk(KERN_INFO PFX
"unable to clear error (so ignoring them)\n");
2854 hw
->intr_mask
&= ~IS_HW_ERR
;
2860 * Interrupt from PHY are handled in work queue
2861 * because accessing phy registers requires spin wait which might
2862 * cause excess interrupt latency.
2864 static void skge_extirq(void *arg
)
2866 struct skge_hw
*hw
= arg
;
2869 mutex_lock(&hw
->phy_mutex
);
2870 for (port
= 0; port
< hw
->ports
; port
++) {
2871 struct net_device
*dev
= hw
->dev
[port
];
2872 struct skge_port
*skge
= netdev_priv(dev
);
2874 if (netif_running(dev
)) {
2875 if (hw
->chip_id
!= CHIP_ID_GENESIS
)
2876 yukon_phy_intr(skge
);
2878 bcom_phy_intr(skge
);
2881 mutex_unlock(&hw
->phy_mutex
);
2883 spin_lock_irq(&hw
->hw_lock
);
2884 hw
->intr_mask
|= IS_EXT_REG
;
2885 skge_write32(hw
, B0_IMSK
, hw
->intr_mask
);
2886 spin_unlock_irq(&hw
->hw_lock
);
2889 static irqreturn_t
skge_intr(int irq
, void *dev_id
, struct pt_regs
*regs
)
2891 struct skge_hw
*hw
= dev_id
;
2894 /* Reading this register masks IRQ */
2895 status
= skge_read32(hw
, B0_SP_ISRC
);
2899 spin_lock(&hw
->hw_lock
);
2900 status
&= hw
->intr_mask
;
2901 if (status
& IS_EXT_REG
) {
2902 hw
->intr_mask
&= ~IS_EXT_REG
;
2903 schedule_work(&hw
->phy_work
);
2906 if (status
& IS_XA1_F
) {
2907 skge_write8(hw
, Q_ADDR(Q_XA1
, Q_CSR
), CSR_IRQ_CL_F
);
2908 skge_txirq(hw
->dev
[0]);
2911 if (status
& IS_R1_F
) {
2912 skge_write8(hw
, Q_ADDR(Q_R1
, Q_CSR
), CSR_IRQ_CL_F
);
2913 hw
->intr_mask
&= ~IS_R1_F
;
2914 netif_rx_schedule(hw
->dev
[0]);
2917 if (status
& IS_PA_TO_TX1
)
2918 skge_write16(hw
, B3_PA_CTRL
, PA_CLR_TO_TX1
);
2920 if (status
& IS_PA_TO_RX1
) {
2921 struct skge_port
*skge
= netdev_priv(hw
->dev
[0]);
2923 ++skge
->net_stats
.rx_over_errors
;
2924 skge_write16(hw
, B3_PA_CTRL
, PA_CLR_TO_RX1
);
2928 if (status
& IS_MAC1
)
2929 skge_mac_intr(hw
, 0);
2932 if (status
& IS_XA2_F
) {
2933 skge_write8(hw
, Q_ADDR(Q_XA2
, Q_CSR
), CSR_IRQ_CL_F
);
2934 skge_txirq(hw
->dev
[1]);
2937 if (status
& IS_R2_F
) {
2938 skge_write8(hw
, Q_ADDR(Q_R2
, Q_CSR
), CSR_IRQ_CL_F
);
2939 hw
->intr_mask
&= ~IS_R2_F
;
2940 netif_rx_schedule(hw
->dev
[1]);
2943 if (status
& IS_PA_TO_RX2
) {
2944 struct skge_port
*skge
= netdev_priv(hw
->dev
[1]);
2945 ++skge
->net_stats
.rx_over_errors
;
2946 skge_write16(hw
, B3_PA_CTRL
, PA_CLR_TO_RX2
);
2949 if (status
& IS_PA_TO_TX2
)
2950 skge_write16(hw
, B3_PA_CTRL
, PA_CLR_TO_TX2
);
2952 if (status
& IS_MAC2
)
2953 skge_mac_intr(hw
, 1);
2956 if (status
& IS_HW_ERR
)
2959 skge_write32(hw
, B0_IMSK
, hw
->intr_mask
);
2960 spin_unlock(&hw
->hw_lock
);
2965 #ifdef CONFIG_NET_POLL_CONTROLLER
2966 static void skge_netpoll(struct net_device
*dev
)
2968 struct skge_port
*skge
= netdev_priv(dev
);
2970 disable_irq(dev
->irq
);
2971 skge_intr(dev
->irq
, skge
->hw
, NULL
);
2972 enable_irq(dev
->irq
);
2976 static int skge_set_mac_address(struct net_device
*dev
, void *p
)
2978 struct skge_port
*skge
= netdev_priv(dev
);
2979 struct skge_hw
*hw
= skge
->hw
;
2980 unsigned port
= skge
->port
;
2981 const struct sockaddr
*addr
= p
;
2983 if (!is_valid_ether_addr(addr
->sa_data
))
2984 return -EADDRNOTAVAIL
;
2986 mutex_lock(&hw
->phy_mutex
);
2987 memcpy(dev
->dev_addr
, addr
->sa_data
, ETH_ALEN
);
2988 memcpy_toio(hw
->regs
+ B2_MAC_1
+ port
*8,
2989 dev
->dev_addr
, ETH_ALEN
);
2990 memcpy_toio(hw
->regs
+ B2_MAC_2
+ port
*8,
2991 dev
->dev_addr
, ETH_ALEN
);
2993 if (hw
->chip_id
== CHIP_ID_GENESIS
)
2994 xm_outaddr(hw
, port
, XM_SA
, dev
->dev_addr
);
2996 gma_set_addr(hw
, port
, GM_SRC_ADDR_1L
, dev
->dev_addr
);
2997 gma_set_addr(hw
, port
, GM_SRC_ADDR_2L
, dev
->dev_addr
);
2999 mutex_unlock(&hw
->phy_mutex
);
3004 static const struct {
3008 { CHIP_ID_GENESIS
, "Genesis" },
3009 { CHIP_ID_YUKON
, "Yukon" },
3010 { CHIP_ID_YUKON_LITE
, "Yukon-Lite"},
3011 { CHIP_ID_YUKON_LP
, "Yukon-LP"},
3014 static const char *skge_board_name(const struct skge_hw
*hw
)
3017 static char buf
[16];
3019 for (i
= 0; i
< ARRAY_SIZE(skge_chips
); i
++)
3020 if (skge_chips
[i
].id
== hw
->chip_id
)
3021 return skge_chips
[i
].name
;
3023 snprintf(buf
, sizeof buf
, "chipid 0x%x", hw
->chip_id
);
3029 * Setup the board data structure, but don't bring up
3032 static int skge_reset(struct skge_hw
*hw
)
3035 u16 ctst
, pci_status
;
3036 u8 t8
, mac_cfg
, pmd_type
, phy_type
;
3039 ctst
= skge_read16(hw
, B0_CTST
);
3042 skge_write8(hw
, B0_CTST
, CS_RST_SET
);
3043 skge_write8(hw
, B0_CTST
, CS_RST_CLR
);
3045 /* clear PCI errors, if any */
3046 skge_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_ON
);
3047 skge_write8(hw
, B2_TST_CTRL2
, 0);
3049 pci_read_config_word(hw
->pdev
, PCI_STATUS
, &pci_status
);
3050 pci_write_config_word(hw
->pdev
, PCI_STATUS
,
3051 pci_status
| PCI_STATUS_ERROR_BITS
);
3052 skge_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_OFF
);
3053 skge_write8(hw
, B0_CTST
, CS_MRST_CLR
);
3055 /* restore CLK_RUN bits (for Yukon-Lite) */
3056 skge_write16(hw
, B0_CTST
,
3057 ctst
& (CS_CLK_RUN_HOT
|CS_CLK_RUN_RST
|CS_CLK_RUN_ENA
));
3059 hw
->chip_id
= skge_read8(hw
, B2_CHIP_ID
);
3060 phy_type
= skge_read8(hw
, B2_E_1
) & 0xf;
3061 pmd_type
= skge_read8(hw
, B2_PMD_TYP
);
3062 hw
->copper
= (pmd_type
== 'T' || pmd_type
== '1');
3064 switch (hw
->chip_id
) {
3065 case CHIP_ID_GENESIS
:
3068 hw
->phy_addr
= PHY_ADDR_BCOM
;
3071 printk(KERN_ERR PFX
"%s: unsupported phy type 0x%x\n",
3072 pci_name(hw
->pdev
), phy_type
);
3078 case CHIP_ID_YUKON_LITE
:
3079 case CHIP_ID_YUKON_LP
:
3080 if (phy_type
< SK_PHY_MARV_COPPER
&& pmd_type
!= 'S')
3083 hw
->phy_addr
= PHY_ADDR_MARV
;
3087 printk(KERN_ERR PFX
"%s: unsupported chip type 0x%x\n",
3088 pci_name(hw
->pdev
), hw
->chip_id
);
3092 mac_cfg
= skge_read8(hw
, B2_MAC_CFG
);
3093 hw
->ports
= (mac_cfg
& CFG_SNG_MAC
) ? 1 : 2;
3094 hw
->chip_rev
= (mac_cfg
& CFG_CHIP_R_MSK
) >> 4;
3096 /* read the adapters RAM size */
3097 t8
= skge_read8(hw
, B2_E_0
);
3098 if (hw
->chip_id
== CHIP_ID_GENESIS
) {
3100 /* special case: 4 x 64k x 36, offset = 0x80000 */
3101 hw
->ram_size
= 0x100000;
3102 hw
->ram_offset
= 0x80000;
3104 hw
->ram_size
= t8
* 512;
3107 hw
->ram_size
= 0x20000;
3109 hw
->ram_size
= t8
* 4096;
3111 spin_lock_init(&hw
->hw_lock
);
3112 hw
->intr_mask
= IS_HW_ERR
| IS_EXT_REG
| IS_PORT_1
;
3114 hw
->intr_mask
|= IS_PORT_2
;
3116 if (hw
->chip_id
== CHIP_ID_GENESIS
)
3119 /* switch power to VCC (WA for VAUX problem) */
3120 skge_write8(hw
, B0_POWER_CTRL
,
3121 PC_VAUX_ENA
| PC_VCC_ENA
| PC_VAUX_OFF
| PC_VCC_ON
);
3123 /* avoid boards with stuck Hardware error bits */
3124 if ((skge_read32(hw
, B0_ISRC
) & IS_HW_ERR
) &&
3125 (skge_read32(hw
, B0_HWE_ISRC
) & IS_IRQ_SENSOR
)) {
3126 printk(KERN_WARNING PFX
"stuck hardware sensor bit\n");
3127 hw
->intr_mask
&= ~IS_HW_ERR
;
3130 /* Clear PHY COMA */
3131 skge_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_ON
);
3132 pci_read_config_dword(hw
->pdev
, PCI_DEV_REG1
, ®
);
3133 reg
&= ~PCI_PHY_COMA
;
3134 pci_write_config_dword(hw
->pdev
, PCI_DEV_REG1
, reg
);
3135 skge_write8(hw
, B2_TST_CTRL1
, TST_CFG_WRITE_OFF
);
3138 for (i
= 0; i
< hw
->ports
; i
++) {
3139 skge_write16(hw
, SK_REG(i
, GMAC_LINK_CTRL
), GMLC_RST_SET
);
3140 skge_write16(hw
, SK_REG(i
, GMAC_LINK_CTRL
), GMLC_RST_CLR
);
3144 /* turn off hardware timer (unused) */
3145 skge_write8(hw
, B2_TI_CTRL
, TIM_STOP
);
3146 skge_write8(hw
, B2_TI_CTRL
, TIM_CLR_IRQ
);
3147 skge_write8(hw
, B0_LED
, LED_STAT_ON
);
3149 /* enable the Tx Arbiters */
3150 for (i
= 0; i
< hw
->ports
; i
++)
3151 skge_write8(hw
, SK_REG(i
, TXA_CTRL
), TXA_ENA_ARB
);
3153 /* Initialize ram interface */
3154 skge_write16(hw
, B3_RI_CTRL
, RI_RST_CLR
);
3156 skge_write8(hw
, B3_RI_WTO_R1
, SK_RI_TO_53
);
3157 skge_write8(hw
, B3_RI_WTO_XA1
, SK_RI_TO_53
);
3158 skge_write8(hw
, B3_RI_WTO_XS1
, SK_RI_TO_53
);
3159 skge_write8(hw
, B3_RI_RTO_R1
, SK_RI_TO_53
);
3160 skge_write8(hw
, B3_RI_RTO_XA1
, SK_RI_TO_53
);
3161 skge_write8(hw
, B3_RI_RTO_XS1
, SK_RI_TO_53
);
3162 skge_write8(hw
, B3_RI_WTO_R2
, SK_RI_TO_53
);
3163 skge_write8(hw
, B3_RI_WTO_XA2
, SK_RI_TO_53
);
3164 skge_write8(hw
, B3_RI_WTO_XS2
, SK_RI_TO_53
);
3165 skge_write8(hw
, B3_RI_RTO_R2
, SK_RI_TO_53
);
3166 skge_write8(hw
, B3_RI_RTO_XA2
, SK_RI_TO_53
);
3167 skge_write8(hw
, B3_RI_RTO_XS2
, SK_RI_TO_53
);
3169 skge_write32(hw
, B0_HWE_IMSK
, IS_ERR_MSK
);
3171 /* Set interrupt moderation for Transmit only
3172 * Receive interrupts avoided by NAPI
3174 skge_write32(hw
, B2_IRQM_MSK
, IS_XA1_F
|IS_XA2_F
);
3175 skge_write32(hw
, B2_IRQM_INI
, skge_usecs2clk(hw
, 100));
3176 skge_write32(hw
, B2_IRQM_CTRL
, TIM_START
);
3178 skge_write32(hw
, B0_IMSK
, hw
->intr_mask
);
3180 mutex_lock(&hw
->phy_mutex
);
3181 for (i
= 0; i
< hw
->ports
; i
++) {
3182 if (hw
->chip_id
== CHIP_ID_GENESIS
)
3183 genesis_reset(hw
, i
);
3187 mutex_unlock(&hw
->phy_mutex
);
3192 /* Initialize network device */
3193 static struct net_device
*skge_devinit(struct skge_hw
*hw
, int port
,
3196 struct skge_port
*skge
;
3197 struct net_device
*dev
= alloc_etherdev(sizeof(*skge
));
3200 printk(KERN_ERR
"skge etherdev alloc failed");
3204 SET_MODULE_OWNER(dev
);
3205 SET_NETDEV_DEV(dev
, &hw
->pdev
->dev
);
3206 dev
->open
= skge_up
;
3207 dev
->stop
= skge_down
;
3208 dev
->do_ioctl
= skge_ioctl
;
3209 dev
->hard_start_xmit
= skge_xmit_frame
;
3210 dev
->get_stats
= skge_get_stats
;
3211 if (hw
->chip_id
== CHIP_ID_GENESIS
)
3212 dev
->set_multicast_list
= genesis_set_multicast
;
3214 dev
->set_multicast_list
= yukon_set_multicast
;
3216 dev
->set_mac_address
= skge_set_mac_address
;
3217 dev
->change_mtu
= skge_change_mtu
;
3218 SET_ETHTOOL_OPS(dev
, &skge_ethtool_ops
);
3219 dev
->tx_timeout
= skge_tx_timeout
;
3220 dev
->watchdog_timeo
= TX_WATCHDOG
;
3221 dev
->poll
= skge_poll
;
3222 dev
->weight
= NAPI_WEIGHT
;
3223 #ifdef CONFIG_NET_POLL_CONTROLLER
3224 dev
->poll_controller
= skge_netpoll
;
3226 dev
->irq
= hw
->pdev
->irq
;
3227 dev
->features
= NETIF_F_LLTX
;
3229 dev
->features
|= NETIF_F_HIGHDMA
;
3231 skge
= netdev_priv(dev
);
3234 skge
->msg_enable
= netif_msg_init(debug
, default_msg
);
3235 skge
->tx_ring
.count
= DEFAULT_TX_RING_SIZE
;
3236 skge
->rx_ring
.count
= DEFAULT_RX_RING_SIZE
;
3238 /* Auto speed and flow control */
3239 skge
->autoneg
= AUTONEG_ENABLE
;
3240 skge
->flow_control
= FLOW_MODE_SYMMETRIC
;
3243 skge
->advertising
= skge_supported_modes(hw
);
3245 hw
->dev
[port
] = dev
;
3249 spin_lock_init(&skge
->tx_lock
);
3251 if (hw
->chip_id
!= CHIP_ID_GENESIS
) {
3252 dev
->features
|= NETIF_F_IP_CSUM
| NETIF_F_SG
;
3256 /* read the mac address */
3257 memcpy_fromio(dev
->dev_addr
, hw
->regs
+ B2_MAC_1
+ port
*8, ETH_ALEN
);
3258 memcpy(dev
->perm_addr
, dev
->dev_addr
, dev
->addr_len
);
3260 /* device is off until link detection */
3261 netif_carrier_off(dev
);
3262 netif_stop_queue(dev
);
3267 static void __devinit
skge_show_addr(struct net_device
*dev
)
3269 const struct skge_port
*skge
= netdev_priv(dev
);
3271 if (netif_msg_probe(skge
))
3272 printk(KERN_INFO PFX
"%s: addr %02x:%02x:%02x:%02x:%02x:%02x\n",
3274 dev
->dev_addr
[0], dev
->dev_addr
[1], dev
->dev_addr
[2],
3275 dev
->dev_addr
[3], dev
->dev_addr
[4], dev
->dev_addr
[5]);
3278 static int __devinit
skge_probe(struct pci_dev
*pdev
,
3279 const struct pci_device_id
*ent
)
3281 struct net_device
*dev
, *dev1
;
3283 int err
, using_dac
= 0;
3285 err
= pci_enable_device(pdev
);
3287 printk(KERN_ERR PFX
"%s cannot enable PCI device\n",
3292 err
= pci_request_regions(pdev
, DRV_NAME
);
3294 printk(KERN_ERR PFX
"%s cannot obtain PCI resources\n",
3296 goto err_out_disable_pdev
;
3299 pci_set_master(pdev
);
3301 if (!pci_set_dma_mask(pdev
, DMA_64BIT_MASK
)) {
3303 err
= pci_set_consistent_dma_mask(pdev
, DMA_64BIT_MASK
);
3304 } else if (!(err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
))) {
3306 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
3310 printk(KERN_ERR PFX
"%s no usable DMA configuration\n",
3312 goto err_out_free_regions
;
3316 /* byte swap descriptors in hardware */
3320 pci_read_config_dword(pdev
, PCI_DEV_REG2
, ®
);
3321 reg
|= PCI_REV_DESC
;
3322 pci_write_config_dword(pdev
, PCI_DEV_REG2
, reg
);
3327 hw
= kzalloc(sizeof(*hw
), GFP_KERNEL
);
3329 printk(KERN_ERR PFX
"%s: cannot allocate hardware struct\n",
3331 goto err_out_free_regions
;
3335 mutex_init(&hw
->phy_mutex
);
3336 INIT_WORK(&hw
->phy_work
, skge_extirq
, hw
);
3338 hw
->regs
= ioremap_nocache(pci_resource_start(pdev
, 0), 0x4000);
3340 printk(KERN_ERR PFX
"%s: cannot map device registers\n",
3342 goto err_out_free_hw
;
3345 err
= request_irq(pdev
->irq
, skge_intr
, SA_SHIRQ
, DRV_NAME
, hw
);
3347 printk(KERN_ERR PFX
"%s: cannot assign irq %d\n",
3348 pci_name(pdev
), pdev
->irq
);
3349 goto err_out_iounmap
;
3351 pci_set_drvdata(pdev
, hw
);
3353 err
= skge_reset(hw
);
3355 goto err_out_free_irq
;
3357 printk(KERN_INFO PFX DRV_VERSION
" addr 0x%lx irq %d chip %s rev %d\n",
3358 pci_resource_start(pdev
, 0), pdev
->irq
,
3359 skge_board_name(hw
), hw
->chip_rev
);
3361 if ((dev
= skge_devinit(hw
, 0, using_dac
)) == NULL
)
3362 goto err_out_led_off
;
3364 if (!is_valid_ether_addr(dev
->dev_addr
)) {
3365 printk(KERN_ERR PFX
"%s: bad (zero?) ethernet address in rom\n",
3368 goto err_out_free_netdev
;
3372 err
= register_netdev(dev
);
3374 printk(KERN_ERR PFX
"%s: cannot register net device\n",
3376 goto err_out_free_netdev
;
3379 skge_show_addr(dev
);
3381 if (hw
->ports
> 1 && (dev1
= skge_devinit(hw
, 1, using_dac
))) {
3382 if (register_netdev(dev1
) == 0)
3383 skge_show_addr(dev1
);
3385 /* Failure to register second port need not be fatal */
3386 printk(KERN_WARNING PFX
"register of second port failed\n");
3394 err_out_free_netdev
:
3397 skge_write16(hw
, B0_LED
, LED_STAT_OFF
);
3399 free_irq(pdev
->irq
, hw
);
3404 err_out_free_regions
:
3405 pci_release_regions(pdev
);
3406 err_out_disable_pdev
:
3407 pci_disable_device(pdev
);
3408 pci_set_drvdata(pdev
, NULL
);
3413 static void __devexit
skge_remove(struct pci_dev
*pdev
)
3415 struct skge_hw
*hw
= pci_get_drvdata(pdev
);
3416 struct net_device
*dev0
, *dev1
;
3421 if ((dev1
= hw
->dev
[1]))
3422 unregister_netdev(dev1
);
3424 unregister_netdev(dev0
);
3426 spin_lock_irq(&hw
->hw_lock
);
3428 skge_write32(hw
, B0_IMSK
, 0);
3429 spin_unlock_irq(&hw
->hw_lock
);
3431 skge_write16(hw
, B0_LED
, LED_STAT_OFF
);
3432 skge_write8(hw
, B0_CTST
, CS_RST_SET
);
3434 flush_scheduled_work();
3436 free_irq(pdev
->irq
, hw
);
3437 pci_release_regions(pdev
);
3438 pci_disable_device(pdev
);
3445 pci_set_drvdata(pdev
, NULL
);
3449 static int skge_suspend(struct pci_dev
*pdev
, pm_message_t state
)
3451 struct skge_hw
*hw
= pci_get_drvdata(pdev
);
3454 for (i
= 0; i
< 2; i
++) {
3455 struct net_device
*dev
= hw
->dev
[i
];
3458 struct skge_port
*skge
= netdev_priv(dev
);
3459 if (netif_running(dev
)) {
3460 netif_carrier_off(dev
);
3462 netif_stop_queue(dev
);
3466 netif_device_detach(dev
);
3471 pci_save_state(pdev
);
3472 pci_enable_wake(pdev
, pci_choose_state(pdev
, state
), wol
);
3473 pci_disable_device(pdev
);
3474 pci_set_power_state(pdev
, pci_choose_state(pdev
, state
));
3479 static int skge_resume(struct pci_dev
*pdev
)
3481 struct skge_hw
*hw
= pci_get_drvdata(pdev
);
3484 pci_set_power_state(pdev
, PCI_D0
);
3485 pci_restore_state(pdev
);
3486 pci_enable_wake(pdev
, PCI_D0
, 0);
3490 for (i
= 0; i
< 2; i
++) {
3491 struct net_device
*dev
= hw
->dev
[i
];
3493 netif_device_attach(dev
);
3494 if (netif_running(dev
) && skge_up(dev
))
3502 static struct pci_driver skge_driver
= {
3504 .id_table
= skge_id_table
,
3505 .probe
= skge_probe
,
3506 .remove
= __devexit_p(skge_remove
),
3508 .suspend
= skge_suspend
,
3509 .resume
= skge_resume
,
3513 static int __init
skge_init_module(void)
3515 return pci_module_init(&skge_driver
);
3518 static void __exit
skge_cleanup_module(void)
3520 pci_unregister_driver(&skge_driver
);
3523 module_init(skge_init_module
);
3524 module_exit(skge_cleanup_module
);