1 /* b44.c: Broadcom 44xx/47xx Fast Ethernet device driver.
3 * Copyright (C) 2002 David S. Miller (davem@redhat.com)
4 * Copyright (C) 2004 Pekka Pietikainen (pp@ee.oulu.fi)
5 * Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org)
6 * Copyright (C) 2006 Felix Fietkau (nbd@openwrt.org)
7 * Copyright (C) 2006 Broadcom Corporation.
8 * Copyright (C) 2007 Michael Buesch <mb@bu3sch.de>
10 * Distribute under GPL.
13 #include <linux/kernel.h>
14 #include <linux/module.h>
15 #include <linux/moduleparam.h>
16 #include <linux/types.h>
17 #include <linux/netdevice.h>
18 #include <linux/ethtool.h>
19 #include <linux/mii.h>
20 #include <linux/if_ether.h>
21 #include <linux/if_vlan.h>
22 #include <linux/etherdevice.h>
23 #include <linux/pci.h>
24 #include <linux/delay.h>
25 #include <linux/init.h>
26 #include <linux/dma-mapping.h>
27 #include <linux/ssb/ssb.h>
29 #include <asm/uaccess.h>
36 #define DRV_MODULE_NAME "b44"
37 #define PFX DRV_MODULE_NAME ": "
38 #define DRV_MODULE_VERSION "2.0"
40 #define B44_DEF_MSG_ENABLE \
50 /* length of time before we decide the hardware is borked,
51 * and dev->tx_timeout() should be called to fix the problem
53 #define B44_TX_TIMEOUT (5 * HZ)
55 /* hardware minimum and maximum for a single frame's data payload */
56 #define B44_MIN_MTU 60
57 #define B44_MAX_MTU 1500
59 #define B44_RX_RING_SIZE 512
60 #define B44_DEF_RX_RING_PENDING 200
61 #define B44_RX_RING_BYTES (sizeof(struct dma_desc) * \
63 #define B44_TX_RING_SIZE 512
64 #define B44_DEF_TX_RING_PENDING (B44_TX_RING_SIZE - 1)
65 #define B44_TX_RING_BYTES (sizeof(struct dma_desc) * \
68 #define TX_RING_GAP(BP) \
69 (B44_TX_RING_SIZE - (BP)->tx_pending)
70 #define TX_BUFFS_AVAIL(BP) \
71 (((BP)->tx_cons <= (BP)->tx_prod) ? \
72 (BP)->tx_cons + (BP)->tx_pending - (BP)->tx_prod : \
73 (BP)->tx_cons - (BP)->tx_prod - TX_RING_GAP(BP))
74 #define NEXT_TX(N) (((N) + 1) & (B44_TX_RING_SIZE - 1))
76 #define RX_PKT_OFFSET (RX_HEADER_LEN + 2)
77 #define RX_PKT_BUF_SZ (1536 + RX_PKT_OFFSET)
79 /* minimum number of free TX descriptors required to wake up TX process */
80 #define B44_TX_WAKEUP_THRESH (B44_TX_RING_SIZE / 4)
82 /* b44 internal pattern match filter info */
83 #define B44_PATTERN_BASE 0x400
84 #define B44_PATTERN_SIZE 0x80
85 #define B44_PMASK_BASE 0x600
86 #define B44_PMASK_SIZE 0x10
87 #define B44_MAX_PATTERNS 16
88 #define B44_ETHIPV6UDP_HLEN 62
89 #define B44_ETHIPV4UDP_HLEN 42
91 static char version
[] __devinitdata
=
92 DRV_MODULE_NAME
".c:v" DRV_MODULE_VERSION
"\n";
94 MODULE_AUTHOR("Felix Fietkau, Florian Schirmer, Pekka Pietikainen, David S. Miller");
95 MODULE_DESCRIPTION("Broadcom 44xx/47xx 10/100 PCI ethernet driver");
96 MODULE_LICENSE("GPL");
97 MODULE_VERSION(DRV_MODULE_VERSION
);
99 static int b44_debug
= -1; /* -1 == use B44_DEF_MSG_ENABLE as value */
100 module_param(b44_debug
, int, 0);
101 MODULE_PARM_DESC(b44_debug
, "B44 bitmapped debugging message enable value");
104 #ifdef CONFIG_B44_PCI
105 static const struct pci_device_id b44_pci_tbl
[] = {
106 { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM
, PCI_DEVICE_ID_BCM4401
) },
107 { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM
, PCI_DEVICE_ID_BCM4401B0
) },
108 { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM
, PCI_DEVICE_ID_BCM4401B1
) },
109 { 0 } /* terminate list with empty entry */
111 MODULE_DEVICE_TABLE(pci
, b44_pci_tbl
);
113 static struct pci_driver b44_pci_driver
= {
114 .name
= DRV_MODULE_NAME
,
115 .id_table
= b44_pci_tbl
,
117 #endif /* CONFIG_B44_PCI */
119 static const struct ssb_device_id b44_ssb_tbl
[] = {
120 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_ETHERNET
, SSB_ANY_REV
),
123 MODULE_DEVICE_TABLE(ssb
, b44_ssb_tbl
);
125 static void b44_halt(struct b44
*);
126 static void b44_init_rings(struct b44
*);
128 #define B44_FULL_RESET 1
129 #define B44_FULL_RESET_SKIP_PHY 2
130 #define B44_PARTIAL_RESET 3
131 #define B44_CHIP_RESET_FULL 4
132 #define B44_CHIP_RESET_PARTIAL 5
134 static void b44_init_hw(struct b44
*, int);
136 static int dma_desc_align_mask
;
137 static int dma_desc_sync_size
;
140 static const char b44_gstrings
[][ETH_GSTRING_LEN
] = {
141 #define _B44(x...) # x,
146 static inline void b44_sync_dma_desc_for_device(struct ssb_device
*sdev
,
148 unsigned long offset
,
149 enum dma_data_direction dir
)
151 ssb_dma_sync_single_range_for_device(sdev
, dma_base
,
152 offset
& dma_desc_align_mask
,
153 dma_desc_sync_size
, dir
);
156 static inline void b44_sync_dma_desc_for_cpu(struct ssb_device
*sdev
,
158 unsigned long offset
,
159 enum dma_data_direction dir
)
161 ssb_dma_sync_single_range_for_cpu(sdev
, dma_base
,
162 offset
& dma_desc_align_mask
,
163 dma_desc_sync_size
, dir
);
166 static inline unsigned long br32(const struct b44
*bp
, unsigned long reg
)
168 return ssb_read32(bp
->sdev
, reg
);
171 static inline void bw32(const struct b44
*bp
,
172 unsigned long reg
, unsigned long val
)
174 ssb_write32(bp
->sdev
, reg
, val
);
177 static int b44_wait_bit(struct b44
*bp
, unsigned long reg
,
178 u32 bit
, unsigned long timeout
, const int clear
)
182 for (i
= 0; i
< timeout
; i
++) {
183 u32 val
= br32(bp
, reg
);
185 if (clear
&& !(val
& bit
))
187 if (!clear
&& (val
& bit
))
192 printk(KERN_ERR PFX
"%s: BUG! Timeout waiting for bit %08x of register "
196 (clear
? "clear" : "set"));
202 static inline void __b44_cam_read(struct b44
*bp
, unsigned char *data
, int index
)
206 bw32(bp
, B44_CAM_CTRL
, (CAM_CTRL_READ
|
207 (index
<< CAM_CTRL_INDEX_SHIFT
)));
209 b44_wait_bit(bp
, B44_CAM_CTRL
, CAM_CTRL_BUSY
, 100, 1);
211 val
= br32(bp
, B44_CAM_DATA_LO
);
213 data
[2] = (val
>> 24) & 0xFF;
214 data
[3] = (val
>> 16) & 0xFF;
215 data
[4] = (val
>> 8) & 0xFF;
216 data
[5] = (val
>> 0) & 0xFF;
218 val
= br32(bp
, B44_CAM_DATA_HI
);
220 data
[0] = (val
>> 8) & 0xFF;
221 data
[1] = (val
>> 0) & 0xFF;
224 static inline void __b44_cam_write(struct b44
*bp
, unsigned char *data
, int index
)
228 val
= ((u32
) data
[2]) << 24;
229 val
|= ((u32
) data
[3]) << 16;
230 val
|= ((u32
) data
[4]) << 8;
231 val
|= ((u32
) data
[5]) << 0;
232 bw32(bp
, B44_CAM_DATA_LO
, val
);
233 val
= (CAM_DATA_HI_VALID
|
234 (((u32
) data
[0]) << 8) |
235 (((u32
) data
[1]) << 0));
236 bw32(bp
, B44_CAM_DATA_HI
, val
);
237 bw32(bp
, B44_CAM_CTRL
, (CAM_CTRL_WRITE
|
238 (index
<< CAM_CTRL_INDEX_SHIFT
)));
239 b44_wait_bit(bp
, B44_CAM_CTRL
, CAM_CTRL_BUSY
, 100, 1);
242 static inline void __b44_disable_ints(struct b44
*bp
)
244 bw32(bp
, B44_IMASK
, 0);
247 static void b44_disable_ints(struct b44
*bp
)
249 __b44_disable_ints(bp
);
251 /* Flush posted writes. */
255 static void b44_enable_ints(struct b44
*bp
)
257 bw32(bp
, B44_IMASK
, bp
->imask
);
260 static int __b44_readphy(struct b44
*bp
, int phy_addr
, int reg
, u32
*val
)
264 bw32(bp
, B44_EMAC_ISTAT
, EMAC_INT_MII
);
265 bw32(bp
, B44_MDIO_DATA
, (MDIO_DATA_SB_START
|
266 (MDIO_OP_READ
<< MDIO_DATA_OP_SHIFT
) |
267 (phy_addr
<< MDIO_DATA_PMD_SHIFT
) |
268 (reg
<< MDIO_DATA_RA_SHIFT
) |
269 (MDIO_TA_VALID
<< MDIO_DATA_TA_SHIFT
)));
270 err
= b44_wait_bit(bp
, B44_EMAC_ISTAT
, EMAC_INT_MII
, 100, 0);
271 *val
= br32(bp
, B44_MDIO_DATA
) & MDIO_DATA_DATA
;
276 static int __b44_writephy(struct b44
*bp
, int phy_addr
, int reg
, u32 val
)
278 bw32(bp
, B44_EMAC_ISTAT
, EMAC_INT_MII
);
279 bw32(bp
, B44_MDIO_DATA
, (MDIO_DATA_SB_START
|
280 (MDIO_OP_WRITE
<< MDIO_DATA_OP_SHIFT
) |
281 (phy_addr
<< MDIO_DATA_PMD_SHIFT
) |
282 (reg
<< MDIO_DATA_RA_SHIFT
) |
283 (MDIO_TA_VALID
<< MDIO_DATA_TA_SHIFT
) |
284 (val
& MDIO_DATA_DATA
)));
285 return b44_wait_bit(bp
, B44_EMAC_ISTAT
, EMAC_INT_MII
, 100, 0);
288 static inline int b44_readphy(struct b44
*bp
, int reg
, u32
*val
)
290 if (bp
->phy_addr
== B44_PHY_ADDR_NO_PHY
)
293 return __b44_readphy(bp
, bp
->phy_addr
, reg
, val
);
296 static inline int b44_writephy(struct b44
*bp
, int reg
, u32 val
)
298 if (bp
->phy_addr
== B44_PHY_ADDR_NO_PHY
)
301 return __b44_writephy(bp
, bp
->phy_addr
, reg
, val
);
304 /* miilib interface */
305 static int b44_mii_read(struct net_device
*dev
, int phy_id
, int location
)
308 struct b44
*bp
= netdev_priv(dev
);
309 int rc
= __b44_readphy(bp
, phy_id
, location
, &val
);
315 static void b44_mii_write(struct net_device
*dev
, int phy_id
, int location
,
318 struct b44
*bp
= netdev_priv(dev
);
319 __b44_writephy(bp
, phy_id
, location
, val
);
322 static int b44_phy_reset(struct b44
*bp
)
327 if (bp
->phy_addr
== B44_PHY_ADDR_NO_PHY
)
329 err
= b44_writephy(bp
, MII_BMCR
, BMCR_RESET
);
333 err
= b44_readphy(bp
, MII_BMCR
, &val
);
335 if (val
& BMCR_RESET
) {
336 printk(KERN_ERR PFX
"%s: PHY Reset would not complete.\n",
345 static void __b44_set_flow_ctrl(struct b44
*bp
, u32 pause_flags
)
349 bp
->flags
&= ~(B44_FLAG_TX_PAUSE
| B44_FLAG_RX_PAUSE
);
350 bp
->flags
|= pause_flags
;
352 val
= br32(bp
, B44_RXCONFIG
);
353 if (pause_flags
& B44_FLAG_RX_PAUSE
)
354 val
|= RXCONFIG_FLOW
;
356 val
&= ~RXCONFIG_FLOW
;
357 bw32(bp
, B44_RXCONFIG
, val
);
359 val
= br32(bp
, B44_MAC_FLOW
);
360 if (pause_flags
& B44_FLAG_TX_PAUSE
)
361 val
|= (MAC_FLOW_PAUSE_ENAB
|
362 (0xc0 & MAC_FLOW_RX_HI_WATER
));
364 val
&= ~MAC_FLOW_PAUSE_ENAB
;
365 bw32(bp
, B44_MAC_FLOW
, val
);
368 static void b44_set_flow_ctrl(struct b44
*bp
, u32 local
, u32 remote
)
372 /* The driver supports only rx pause by default because
373 the b44 mac tx pause mechanism generates excessive
375 Use ethtool to turn on b44 tx pause if necessary.
377 if ((local
& ADVERTISE_PAUSE_CAP
) &&
378 (local
& ADVERTISE_PAUSE_ASYM
)){
379 if ((remote
& LPA_PAUSE_ASYM
) &&
380 !(remote
& LPA_PAUSE_CAP
))
381 pause_enab
|= B44_FLAG_RX_PAUSE
;
384 __b44_set_flow_ctrl(bp
, pause_enab
);
387 #ifdef SSB_DRIVER_MIPS
388 extern char *nvram_get(char *name
);
389 static void b44_wap54g10_workaround(struct b44
*bp
)
396 * workaround for bad hardware design in Linksys WAP54G v1.0
397 * see https://dev.openwrt.org/ticket/146
398 * check and reset bit "isolate"
400 str
= nvram_get("boardnum");
403 if (simple_strtoul(str
, NULL
, 0) == 2) {
404 err
= __b44_readphy(bp
, 0, MII_BMCR
, &val
);
407 if (!(val
& BMCR_ISOLATE
))
409 val
&= ~BMCR_ISOLATE
;
410 err
= __b44_writephy(bp
, 0, MII_BMCR
, val
);
416 printk(KERN_WARNING PFX
"PHY: cannot reset MII transceiver isolate bit.\n");
419 static inline void b44_wap54g10_workaround(struct b44
*bp
)
424 static int b44_setup_phy(struct b44
*bp
)
429 b44_wap54g10_workaround(bp
);
431 if (bp
->phy_addr
== B44_PHY_ADDR_NO_PHY
)
433 if ((err
= b44_readphy(bp
, B44_MII_ALEDCTRL
, &val
)) != 0)
435 if ((err
= b44_writephy(bp
, B44_MII_ALEDCTRL
,
436 val
& MII_ALEDCTRL_ALLMSK
)) != 0)
438 if ((err
= b44_readphy(bp
, B44_MII_TLEDCTRL
, &val
)) != 0)
440 if ((err
= b44_writephy(bp
, B44_MII_TLEDCTRL
,
441 val
| MII_TLEDCTRL_ENABLE
)) != 0)
444 if (!(bp
->flags
& B44_FLAG_FORCE_LINK
)) {
445 u32 adv
= ADVERTISE_CSMA
;
447 if (bp
->flags
& B44_FLAG_ADV_10HALF
)
448 adv
|= ADVERTISE_10HALF
;
449 if (bp
->flags
& B44_FLAG_ADV_10FULL
)
450 adv
|= ADVERTISE_10FULL
;
451 if (bp
->flags
& B44_FLAG_ADV_100HALF
)
452 adv
|= ADVERTISE_100HALF
;
453 if (bp
->flags
& B44_FLAG_ADV_100FULL
)
454 adv
|= ADVERTISE_100FULL
;
456 if (bp
->flags
& B44_FLAG_PAUSE_AUTO
)
457 adv
|= ADVERTISE_PAUSE_CAP
| ADVERTISE_PAUSE_ASYM
;
459 if ((err
= b44_writephy(bp
, MII_ADVERTISE
, adv
)) != 0)
461 if ((err
= b44_writephy(bp
, MII_BMCR
, (BMCR_ANENABLE
|
462 BMCR_ANRESTART
))) != 0)
467 if ((err
= b44_readphy(bp
, MII_BMCR
, &bmcr
)) != 0)
469 bmcr
&= ~(BMCR_FULLDPLX
| BMCR_ANENABLE
| BMCR_SPEED100
);
470 if (bp
->flags
& B44_FLAG_100_BASE_T
)
471 bmcr
|= BMCR_SPEED100
;
472 if (bp
->flags
& B44_FLAG_FULL_DUPLEX
)
473 bmcr
|= BMCR_FULLDPLX
;
474 if ((err
= b44_writephy(bp
, MII_BMCR
, bmcr
)) != 0)
477 /* Since we will not be negotiating there is no safe way
478 * to determine if the link partner supports flow control
479 * or not. So just disable it completely in this case.
481 b44_set_flow_ctrl(bp
, 0, 0);
488 static void b44_stats_update(struct b44
*bp
)
493 val
= &bp
->hw_stats
.tx_good_octets
;
494 for (reg
= B44_TX_GOOD_O
; reg
<= B44_TX_PAUSE
; reg
+= 4UL) {
495 *val
++ += br32(bp
, reg
);
501 for (reg
= B44_RX_GOOD_O
; reg
<= B44_RX_NPAUSE
; reg
+= 4UL) {
502 *val
++ += br32(bp
, reg
);
506 static void b44_link_report(struct b44
*bp
)
508 if (!netif_carrier_ok(bp
->dev
)) {
509 printk(KERN_INFO PFX
"%s: Link is down.\n", bp
->dev
->name
);
511 printk(KERN_INFO PFX
"%s: Link is up at %d Mbps, %s duplex.\n",
513 (bp
->flags
& B44_FLAG_100_BASE_T
) ? 100 : 10,
514 (bp
->flags
& B44_FLAG_FULL_DUPLEX
) ? "full" : "half");
516 printk(KERN_INFO PFX
"%s: Flow control is %s for TX and "
519 (bp
->flags
& B44_FLAG_TX_PAUSE
) ? "on" : "off",
520 (bp
->flags
& B44_FLAG_RX_PAUSE
) ? "on" : "off");
524 static void b44_check_phy(struct b44
*bp
)
528 if (bp
->phy_addr
== B44_PHY_ADDR_NO_PHY
) {
529 bp
->flags
|= B44_FLAG_100_BASE_T
;
530 bp
->flags
|= B44_FLAG_FULL_DUPLEX
;
531 if (!netif_carrier_ok(bp
->dev
)) {
532 u32 val
= br32(bp
, B44_TX_CTRL
);
533 val
|= TX_CTRL_DUPLEX
;
534 bw32(bp
, B44_TX_CTRL
, val
);
535 netif_carrier_on(bp
->dev
);
541 if (!b44_readphy(bp
, MII_BMSR
, &bmsr
) &&
542 !b44_readphy(bp
, B44_MII_AUXCTRL
, &aux
) &&
544 if (aux
& MII_AUXCTRL_SPEED
)
545 bp
->flags
|= B44_FLAG_100_BASE_T
;
547 bp
->flags
&= ~B44_FLAG_100_BASE_T
;
548 if (aux
& MII_AUXCTRL_DUPLEX
)
549 bp
->flags
|= B44_FLAG_FULL_DUPLEX
;
551 bp
->flags
&= ~B44_FLAG_FULL_DUPLEX
;
553 if (!netif_carrier_ok(bp
->dev
) &&
554 (bmsr
& BMSR_LSTATUS
)) {
555 u32 val
= br32(bp
, B44_TX_CTRL
);
556 u32 local_adv
, remote_adv
;
558 if (bp
->flags
& B44_FLAG_FULL_DUPLEX
)
559 val
|= TX_CTRL_DUPLEX
;
561 val
&= ~TX_CTRL_DUPLEX
;
562 bw32(bp
, B44_TX_CTRL
, val
);
564 if (!(bp
->flags
& B44_FLAG_FORCE_LINK
) &&
565 !b44_readphy(bp
, MII_ADVERTISE
, &local_adv
) &&
566 !b44_readphy(bp
, MII_LPA
, &remote_adv
))
567 b44_set_flow_ctrl(bp
, local_adv
, remote_adv
);
570 netif_carrier_on(bp
->dev
);
572 } else if (netif_carrier_ok(bp
->dev
) && !(bmsr
& BMSR_LSTATUS
)) {
574 netif_carrier_off(bp
->dev
);
578 if (bmsr
& BMSR_RFAULT
)
579 printk(KERN_WARNING PFX
"%s: Remote fault detected in PHY\n",
582 printk(KERN_WARNING PFX
"%s: Jabber detected in PHY\n",
587 static void b44_timer(unsigned long __opaque
)
589 struct b44
*bp
= (struct b44
*) __opaque
;
591 spin_lock_irq(&bp
->lock
);
595 b44_stats_update(bp
);
597 spin_unlock_irq(&bp
->lock
);
599 mod_timer(&bp
->timer
, round_jiffies(jiffies
+ HZ
));
602 static void b44_tx(struct b44
*bp
)
606 cur
= br32(bp
, B44_DMATX_STAT
) & DMATX_STAT_CDMASK
;
607 cur
/= sizeof(struct dma_desc
);
609 /* XXX needs updating when NETIF_F_SG is supported */
610 for (cons
= bp
->tx_cons
; cons
!= cur
; cons
= NEXT_TX(cons
)) {
611 struct ring_info
*rp
= &bp
->tx_buffers
[cons
];
612 struct sk_buff
*skb
= rp
->skb
;
616 ssb_dma_unmap_single(bp
->sdev
,
621 dev_kfree_skb_irq(skb
);
625 if (netif_queue_stopped(bp
->dev
) &&
626 TX_BUFFS_AVAIL(bp
) > B44_TX_WAKEUP_THRESH
)
627 netif_wake_queue(bp
->dev
);
629 bw32(bp
, B44_GPTIMER
, 0);
632 /* Works like this. This chip writes a 'struct rx_header" 30 bytes
633 * before the DMA address you give it. So we allocate 30 more bytes
634 * for the RX buffer, DMA map all of it, skb_reserve the 30 bytes, then
635 * point the chip at 30 bytes past where the rx_header will go.
637 static int b44_alloc_rx_skb(struct b44
*bp
, int src_idx
, u32 dest_idx_unmasked
)
640 struct ring_info
*src_map
, *map
;
641 struct rx_header
*rh
;
649 src_map
= &bp
->rx_buffers
[src_idx
];
650 dest_idx
= dest_idx_unmasked
& (B44_RX_RING_SIZE
- 1);
651 map
= &bp
->rx_buffers
[dest_idx
];
652 skb
= netdev_alloc_skb(bp
->dev
, RX_PKT_BUF_SZ
);
656 mapping
= ssb_dma_map_single(bp
->sdev
, skb
->data
,
660 /* Hardware bug work-around, the chip is unable to do PCI DMA
661 to/from anything above 1GB :-( */
662 if (ssb_dma_mapping_error(bp
->sdev
, mapping
) ||
663 mapping
+ RX_PKT_BUF_SZ
> DMA_BIT_MASK(30)) {
665 if (!ssb_dma_mapping_error(bp
->sdev
, mapping
))
666 ssb_dma_unmap_single(bp
->sdev
, mapping
,
667 RX_PKT_BUF_SZ
, DMA_FROM_DEVICE
);
668 dev_kfree_skb_any(skb
);
669 skb
= __netdev_alloc_skb(bp
->dev
, RX_PKT_BUF_SZ
, GFP_ATOMIC
|GFP_DMA
);
672 mapping
= ssb_dma_map_single(bp
->sdev
, skb
->data
,
675 if (ssb_dma_mapping_error(bp
->sdev
, mapping
) ||
676 mapping
+ RX_PKT_BUF_SZ
> DMA_BIT_MASK(30)) {
677 if (!ssb_dma_mapping_error(bp
->sdev
, mapping
))
678 ssb_dma_unmap_single(bp
->sdev
, mapping
, RX_PKT_BUF_SZ
,DMA_FROM_DEVICE
);
679 dev_kfree_skb_any(skb
);
682 bp
->force_copybreak
= 1;
685 rh
= (struct rx_header
*) skb
->data
;
691 map
->mapping
= mapping
;
696 ctrl
= (DESC_CTRL_LEN
& RX_PKT_BUF_SZ
);
697 if (dest_idx
== (B44_RX_RING_SIZE
- 1))
698 ctrl
|= DESC_CTRL_EOT
;
700 dp
= &bp
->rx_ring
[dest_idx
];
701 dp
->ctrl
= cpu_to_le32(ctrl
);
702 dp
->addr
= cpu_to_le32((u32
) mapping
+ bp
->dma_offset
);
704 if (bp
->flags
& B44_FLAG_RX_RING_HACK
)
705 b44_sync_dma_desc_for_device(bp
->sdev
, bp
->rx_ring_dma
,
706 dest_idx
* sizeof(*dp
),
709 return RX_PKT_BUF_SZ
;
712 static void b44_recycle_rx(struct b44
*bp
, int src_idx
, u32 dest_idx_unmasked
)
714 struct dma_desc
*src_desc
, *dest_desc
;
715 struct ring_info
*src_map
, *dest_map
;
716 struct rx_header
*rh
;
720 dest_idx
= dest_idx_unmasked
& (B44_RX_RING_SIZE
- 1);
721 dest_desc
= &bp
->rx_ring
[dest_idx
];
722 dest_map
= &bp
->rx_buffers
[dest_idx
];
723 src_desc
= &bp
->rx_ring
[src_idx
];
724 src_map
= &bp
->rx_buffers
[src_idx
];
726 dest_map
->skb
= src_map
->skb
;
727 rh
= (struct rx_header
*) src_map
->skb
->data
;
730 dest_map
->mapping
= src_map
->mapping
;
732 if (bp
->flags
& B44_FLAG_RX_RING_HACK
)
733 b44_sync_dma_desc_for_cpu(bp
->sdev
, bp
->rx_ring_dma
,
734 src_idx
* sizeof(*src_desc
),
737 ctrl
= src_desc
->ctrl
;
738 if (dest_idx
== (B44_RX_RING_SIZE
- 1))
739 ctrl
|= cpu_to_le32(DESC_CTRL_EOT
);
741 ctrl
&= cpu_to_le32(~DESC_CTRL_EOT
);
743 dest_desc
->ctrl
= ctrl
;
744 dest_desc
->addr
= src_desc
->addr
;
748 if (bp
->flags
& B44_FLAG_RX_RING_HACK
)
749 b44_sync_dma_desc_for_device(bp
->sdev
, bp
->rx_ring_dma
,
750 dest_idx
* sizeof(*dest_desc
),
753 ssb_dma_sync_single_for_device(bp
->sdev
, dest_map
->mapping
,
758 static int b44_rx(struct b44
*bp
, int budget
)
764 prod
= br32(bp
, B44_DMARX_STAT
) & DMARX_STAT_CDMASK
;
765 prod
/= sizeof(struct dma_desc
);
768 while (cons
!= prod
&& budget
> 0) {
769 struct ring_info
*rp
= &bp
->rx_buffers
[cons
];
770 struct sk_buff
*skb
= rp
->skb
;
771 dma_addr_t map
= rp
->mapping
;
772 struct rx_header
*rh
;
775 ssb_dma_sync_single_for_cpu(bp
->sdev
, map
,
778 rh
= (struct rx_header
*) skb
->data
;
779 len
= le16_to_cpu(rh
->len
);
780 if ((len
> (RX_PKT_BUF_SZ
- RX_PKT_OFFSET
)) ||
781 (rh
->flags
& cpu_to_le16(RX_FLAG_ERRORS
))) {
783 b44_recycle_rx(bp
, cons
, bp
->rx_prod
);
785 bp
->dev
->stats
.rx_dropped
++;
795 len
= le16_to_cpu(rh
->len
);
796 } while (len
== 0 && i
++ < 5);
804 if (!bp
->force_copybreak
&& len
> RX_COPY_THRESHOLD
) {
806 skb_size
= b44_alloc_rx_skb(bp
, cons
, bp
->rx_prod
);
809 ssb_dma_unmap_single(bp
->sdev
, map
,
810 skb_size
, DMA_FROM_DEVICE
);
811 /* Leave out rx_header */
812 skb_put(skb
, len
+ RX_PKT_OFFSET
);
813 skb_pull(skb
, RX_PKT_OFFSET
);
815 struct sk_buff
*copy_skb
;
817 b44_recycle_rx(bp
, cons
, bp
->rx_prod
);
818 copy_skb
= dev_alloc_skb(len
+ 2);
819 if (copy_skb
== NULL
)
820 goto drop_it_no_recycle
;
822 skb_reserve(copy_skb
, 2);
823 skb_put(copy_skb
, len
);
824 /* DMA sync done above, copy just the actual packet */
825 skb_copy_from_linear_data_offset(skb
, RX_PKT_OFFSET
,
826 copy_skb
->data
, len
);
829 skb
->ip_summed
= CHECKSUM_NONE
;
830 skb
->protocol
= eth_type_trans(skb
, bp
->dev
);
831 netif_receive_skb(skb
);
835 bp
->rx_prod
= (bp
->rx_prod
+ 1) &
836 (B44_RX_RING_SIZE
- 1);
837 cons
= (cons
+ 1) & (B44_RX_RING_SIZE
- 1);
841 bw32(bp
, B44_DMARX_PTR
, cons
* sizeof(struct dma_desc
));
846 static int b44_poll(struct napi_struct
*napi
, int budget
)
848 struct b44
*bp
= container_of(napi
, struct b44
, napi
);
851 spin_lock_irq(&bp
->lock
);
853 if (bp
->istat
& (ISTAT_TX
| ISTAT_TO
)) {
854 /* spin_lock(&bp->tx_lock); */
856 /* spin_unlock(&bp->tx_lock); */
858 spin_unlock_irq(&bp
->lock
);
861 if (bp
->istat
& ISTAT_RX
)
862 work_done
+= b44_rx(bp
, budget
);
864 if (bp
->istat
& ISTAT_ERRORS
) {
867 spin_lock_irqsave(&bp
->lock
, flags
);
870 b44_init_hw(bp
, B44_FULL_RESET_SKIP_PHY
);
871 netif_wake_queue(bp
->dev
);
872 spin_unlock_irqrestore(&bp
->lock
, flags
);
876 if (work_done
< budget
) {
884 static irqreturn_t
b44_interrupt(int irq
, void *dev_id
)
886 struct net_device
*dev
= dev_id
;
887 struct b44
*bp
= netdev_priv(dev
);
891 spin_lock(&bp
->lock
);
893 istat
= br32(bp
, B44_ISTAT
);
894 imask
= br32(bp
, B44_IMASK
);
896 /* The interrupt mask register controls which interrupt bits
897 * will actually raise an interrupt to the CPU when set by hw/firmware,
898 * but doesn't mask off the bits.
904 if (unlikely(!netif_running(dev
))) {
905 printk(KERN_INFO
"%s: late interrupt.\n", dev
->name
);
909 if (napi_schedule_prep(&bp
->napi
)) {
910 /* NOTE: These writes are posted by the readback of
911 * the ISTAT register below.
914 __b44_disable_ints(bp
);
915 __napi_schedule(&bp
->napi
);
917 printk(KERN_ERR PFX
"%s: Error, poll already scheduled\n",
922 bw32(bp
, B44_ISTAT
, istat
);
925 spin_unlock(&bp
->lock
);
926 return IRQ_RETVAL(handled
);
929 static void b44_tx_timeout(struct net_device
*dev
)
931 struct b44
*bp
= netdev_priv(dev
);
933 printk(KERN_ERR PFX
"%s: transmit timed out, resetting\n",
936 spin_lock_irq(&bp
->lock
);
940 b44_init_hw(bp
, B44_FULL_RESET
);
942 spin_unlock_irq(&bp
->lock
);
946 netif_wake_queue(dev
);
949 static netdev_tx_t
b44_start_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
951 struct b44
*bp
= netdev_priv(dev
);
952 int rc
= NETDEV_TX_OK
;
954 u32 len
, entry
, ctrl
;
958 spin_lock_irqsave(&bp
->lock
, flags
);
960 /* This is a hard error, log it. */
961 if (unlikely(TX_BUFFS_AVAIL(bp
) < 1)) {
962 netif_stop_queue(dev
);
963 printk(KERN_ERR PFX
"%s: BUG! Tx Ring full when queue awake!\n",
968 mapping
= ssb_dma_map_single(bp
->sdev
, skb
->data
, len
, DMA_TO_DEVICE
);
969 if (ssb_dma_mapping_error(bp
->sdev
, mapping
) || mapping
+ len
> DMA_BIT_MASK(30)) {
970 struct sk_buff
*bounce_skb
;
972 /* Chip can't handle DMA to/from >1GB, use bounce buffer */
973 if (!ssb_dma_mapping_error(bp
->sdev
, mapping
))
974 ssb_dma_unmap_single(bp
->sdev
, mapping
, len
,
977 bounce_skb
= __netdev_alloc_skb(dev
, len
, GFP_ATOMIC
| GFP_DMA
);
981 mapping
= ssb_dma_map_single(bp
->sdev
, bounce_skb
->data
,
983 if (ssb_dma_mapping_error(bp
->sdev
, mapping
) || mapping
+ len
> DMA_BIT_MASK(30)) {
984 if (!ssb_dma_mapping_error(bp
->sdev
, mapping
))
985 ssb_dma_unmap_single(bp
->sdev
, mapping
,
987 dev_kfree_skb_any(bounce_skb
);
991 skb_copy_from_linear_data(skb
, skb_put(bounce_skb
, len
), len
);
992 dev_kfree_skb_any(skb
);
997 bp
->tx_buffers
[entry
].skb
= skb
;
998 bp
->tx_buffers
[entry
].mapping
= mapping
;
1000 ctrl
= (len
& DESC_CTRL_LEN
);
1001 ctrl
|= DESC_CTRL_IOC
| DESC_CTRL_SOF
| DESC_CTRL_EOF
;
1002 if (entry
== (B44_TX_RING_SIZE
- 1))
1003 ctrl
|= DESC_CTRL_EOT
;
1005 bp
->tx_ring
[entry
].ctrl
= cpu_to_le32(ctrl
);
1006 bp
->tx_ring
[entry
].addr
= cpu_to_le32((u32
) mapping
+bp
->dma_offset
);
1008 if (bp
->flags
& B44_FLAG_TX_RING_HACK
)
1009 b44_sync_dma_desc_for_device(bp
->sdev
, bp
->tx_ring_dma
,
1010 entry
* sizeof(bp
->tx_ring
[0]),
1013 entry
= NEXT_TX(entry
);
1015 bp
->tx_prod
= entry
;
1019 bw32(bp
, B44_DMATX_PTR
, entry
* sizeof(struct dma_desc
));
1020 if (bp
->flags
& B44_FLAG_BUGGY_TXPTR
)
1021 bw32(bp
, B44_DMATX_PTR
, entry
* sizeof(struct dma_desc
));
1022 if (bp
->flags
& B44_FLAG_REORDER_BUG
)
1023 br32(bp
, B44_DMATX_PTR
);
1025 if (TX_BUFFS_AVAIL(bp
) < 1)
1026 netif_stop_queue(dev
);
1028 dev
->trans_start
= jiffies
;
1031 spin_unlock_irqrestore(&bp
->lock
, flags
);
1036 rc
= NETDEV_TX_BUSY
;
1040 static int b44_change_mtu(struct net_device
*dev
, int new_mtu
)
1042 struct b44
*bp
= netdev_priv(dev
);
1044 if (new_mtu
< B44_MIN_MTU
|| new_mtu
> B44_MAX_MTU
)
1047 if (!netif_running(dev
)) {
1048 /* We'll just catch it later when the
1055 spin_lock_irq(&bp
->lock
);
1059 b44_init_hw(bp
, B44_FULL_RESET
);
1060 spin_unlock_irq(&bp
->lock
);
1062 b44_enable_ints(bp
);
1067 /* Free up pending packets in all rx/tx rings.
1069 * The chip has been shut down and the driver detached from
1070 * the networking, so no interrupts or new tx packets will
1071 * end up in the driver. bp->lock is not held and we are not
1072 * in an interrupt context and thus may sleep.
1074 static void b44_free_rings(struct b44
*bp
)
1076 struct ring_info
*rp
;
1079 for (i
= 0; i
< B44_RX_RING_SIZE
; i
++) {
1080 rp
= &bp
->rx_buffers
[i
];
1082 if (rp
->skb
== NULL
)
1084 ssb_dma_unmap_single(bp
->sdev
, rp
->mapping
, RX_PKT_BUF_SZ
,
1086 dev_kfree_skb_any(rp
->skb
);
1090 /* XXX needs changes once NETIF_F_SG is set... */
1091 for (i
= 0; i
< B44_TX_RING_SIZE
; i
++) {
1092 rp
= &bp
->tx_buffers
[i
];
1094 if (rp
->skb
== NULL
)
1096 ssb_dma_unmap_single(bp
->sdev
, rp
->mapping
, rp
->skb
->len
,
1098 dev_kfree_skb_any(rp
->skb
);
1103 /* Initialize tx/rx rings for packet processing.
1105 * The chip has been shut down and the driver detached from
1106 * the networking, so no interrupts or new tx packets will
1107 * end up in the driver.
1109 static void b44_init_rings(struct b44
*bp
)
1115 memset(bp
->rx_ring
, 0, B44_RX_RING_BYTES
);
1116 memset(bp
->tx_ring
, 0, B44_TX_RING_BYTES
);
1118 if (bp
->flags
& B44_FLAG_RX_RING_HACK
)
1119 ssb_dma_sync_single_for_device(bp
->sdev
, bp
->rx_ring_dma
,
1123 if (bp
->flags
& B44_FLAG_TX_RING_HACK
)
1124 ssb_dma_sync_single_for_device(bp
->sdev
, bp
->tx_ring_dma
,
1128 for (i
= 0; i
< bp
->rx_pending
; i
++) {
1129 if (b44_alloc_rx_skb(bp
, -1, i
) < 0)
1135 * Must not be invoked with interrupt sources disabled and
1136 * the hardware shutdown down.
1138 static void b44_free_consistent(struct b44
*bp
)
1140 kfree(bp
->rx_buffers
);
1141 bp
->rx_buffers
= NULL
;
1142 kfree(bp
->tx_buffers
);
1143 bp
->tx_buffers
= NULL
;
1145 if (bp
->flags
& B44_FLAG_RX_RING_HACK
) {
1146 ssb_dma_unmap_single(bp
->sdev
, bp
->rx_ring_dma
,
1151 ssb_dma_free_consistent(bp
->sdev
, DMA_TABLE_BYTES
,
1152 bp
->rx_ring
, bp
->rx_ring_dma
,
1155 bp
->flags
&= ~B44_FLAG_RX_RING_HACK
;
1158 if (bp
->flags
& B44_FLAG_TX_RING_HACK
) {
1159 ssb_dma_unmap_single(bp
->sdev
, bp
->tx_ring_dma
,
1164 ssb_dma_free_consistent(bp
->sdev
, DMA_TABLE_BYTES
,
1165 bp
->tx_ring
, bp
->tx_ring_dma
,
1168 bp
->flags
&= ~B44_FLAG_TX_RING_HACK
;
1173 * Must not be invoked with interrupt sources disabled and
1174 * the hardware shutdown down. Can sleep.
1176 static int b44_alloc_consistent(struct b44
*bp
, gfp_t gfp
)
1180 size
= B44_RX_RING_SIZE
* sizeof(struct ring_info
);
1181 bp
->rx_buffers
= kzalloc(size
, gfp
);
1182 if (!bp
->rx_buffers
)
1185 size
= B44_TX_RING_SIZE
* sizeof(struct ring_info
);
1186 bp
->tx_buffers
= kzalloc(size
, gfp
);
1187 if (!bp
->tx_buffers
)
1190 size
= DMA_TABLE_BYTES
;
1191 bp
->rx_ring
= ssb_dma_alloc_consistent(bp
->sdev
, size
, &bp
->rx_ring_dma
, gfp
);
1193 /* Allocation may have failed due to pci_alloc_consistent
1194 insisting on use of GFP_DMA, which is more restrictive
1195 than necessary... */
1196 struct dma_desc
*rx_ring
;
1197 dma_addr_t rx_ring_dma
;
1199 rx_ring
= kzalloc(size
, gfp
);
1203 rx_ring_dma
= ssb_dma_map_single(bp
->sdev
, rx_ring
,
1207 if (ssb_dma_mapping_error(bp
->sdev
, rx_ring_dma
) ||
1208 rx_ring_dma
+ size
> DMA_BIT_MASK(30)) {
1213 bp
->rx_ring
= rx_ring
;
1214 bp
->rx_ring_dma
= rx_ring_dma
;
1215 bp
->flags
|= B44_FLAG_RX_RING_HACK
;
1218 bp
->tx_ring
= ssb_dma_alloc_consistent(bp
->sdev
, size
, &bp
->tx_ring_dma
, gfp
);
1220 /* Allocation may have failed due to ssb_dma_alloc_consistent
1221 insisting on use of GFP_DMA, which is more restrictive
1222 than necessary... */
1223 struct dma_desc
*tx_ring
;
1224 dma_addr_t tx_ring_dma
;
1226 tx_ring
= kzalloc(size
, gfp
);
1230 tx_ring_dma
= ssb_dma_map_single(bp
->sdev
, tx_ring
,
1234 if (ssb_dma_mapping_error(bp
->sdev
, tx_ring_dma
) ||
1235 tx_ring_dma
+ size
> DMA_BIT_MASK(30)) {
1240 bp
->tx_ring
= tx_ring
;
1241 bp
->tx_ring_dma
= tx_ring_dma
;
1242 bp
->flags
|= B44_FLAG_TX_RING_HACK
;
1248 b44_free_consistent(bp
);
1252 /* bp->lock is held. */
1253 static void b44_clear_stats(struct b44
*bp
)
1257 bw32(bp
, B44_MIB_CTRL
, MIB_CTRL_CLR_ON_READ
);
1258 for (reg
= B44_TX_GOOD_O
; reg
<= B44_TX_PAUSE
; reg
+= 4UL)
1260 for (reg
= B44_RX_GOOD_O
; reg
<= B44_RX_NPAUSE
; reg
+= 4UL)
1264 /* bp->lock is held. */
1265 static void b44_chip_reset(struct b44
*bp
, int reset_kind
)
1267 struct ssb_device
*sdev
= bp
->sdev
;
1270 was_enabled
= ssb_device_is_enabled(bp
->sdev
);
1272 ssb_device_enable(bp
->sdev
, 0);
1273 ssb_pcicore_dev_irqvecs_enable(&sdev
->bus
->pcicore
, sdev
);
1276 bw32(bp
, B44_RCV_LAZY
, 0);
1277 bw32(bp
, B44_ENET_CTRL
, ENET_CTRL_DISABLE
);
1278 b44_wait_bit(bp
, B44_ENET_CTRL
, ENET_CTRL_DISABLE
, 200, 1);
1279 bw32(bp
, B44_DMATX_CTRL
, 0);
1280 bp
->tx_prod
= bp
->tx_cons
= 0;
1281 if (br32(bp
, B44_DMARX_STAT
) & DMARX_STAT_EMASK
) {
1282 b44_wait_bit(bp
, B44_DMARX_STAT
, DMARX_STAT_SIDLE
,
1285 bw32(bp
, B44_DMARX_CTRL
, 0);
1286 bp
->rx_prod
= bp
->rx_cons
= 0;
1289 b44_clear_stats(bp
);
1292 * Don't enable PHY if we are doing a partial reset
1293 * we are probably going to power down
1295 if (reset_kind
== B44_CHIP_RESET_PARTIAL
)
1298 switch (sdev
->bus
->bustype
) {
1299 case SSB_BUSTYPE_SSB
:
1300 bw32(bp
, B44_MDIO_CTRL
, (MDIO_CTRL_PREAMBLE
|
1301 (DIV_ROUND_CLOSEST(ssb_clockspeed(sdev
->bus
),
1303 & MDIO_CTRL_MAXF_MASK
)));
1305 case SSB_BUSTYPE_PCI
:
1306 case SSB_BUSTYPE_PCMCIA
:
1307 bw32(bp
, B44_MDIO_CTRL
, (MDIO_CTRL_PREAMBLE
|
1308 (0x0d & MDIO_CTRL_MAXF_MASK
)));
1312 br32(bp
, B44_MDIO_CTRL
);
1314 if (!(br32(bp
, B44_DEVCTRL
) & DEVCTRL_IPP
)) {
1315 bw32(bp
, B44_ENET_CTRL
, ENET_CTRL_EPSEL
);
1316 br32(bp
, B44_ENET_CTRL
);
1317 bp
->flags
&= ~B44_FLAG_INTERNAL_PHY
;
1319 u32 val
= br32(bp
, B44_DEVCTRL
);
1321 if (val
& DEVCTRL_EPR
) {
1322 bw32(bp
, B44_DEVCTRL
, (val
& ~DEVCTRL_EPR
));
1323 br32(bp
, B44_DEVCTRL
);
1326 bp
->flags
|= B44_FLAG_INTERNAL_PHY
;
1330 /* bp->lock is held. */
1331 static void b44_halt(struct b44
*bp
)
1333 b44_disable_ints(bp
);
1336 /* power down PHY */
1337 printk(KERN_INFO PFX
"%s: powering down PHY\n", bp
->dev
->name
);
1338 bw32(bp
, B44_MAC_CTRL
, MAC_CTRL_PHY_PDOWN
);
1339 /* now reset the chip, but without enabling the MAC&PHY
1340 * part of it. This has to be done _after_ we shut down the PHY */
1341 b44_chip_reset(bp
, B44_CHIP_RESET_PARTIAL
);
1344 /* bp->lock is held. */
1345 static void __b44_set_mac_addr(struct b44
*bp
)
1347 bw32(bp
, B44_CAM_CTRL
, 0);
1348 if (!(bp
->dev
->flags
& IFF_PROMISC
)) {
1351 __b44_cam_write(bp
, bp
->dev
->dev_addr
, 0);
1352 val
= br32(bp
, B44_CAM_CTRL
);
1353 bw32(bp
, B44_CAM_CTRL
, val
| CAM_CTRL_ENABLE
);
1357 static int b44_set_mac_addr(struct net_device
*dev
, void *p
)
1359 struct b44
*bp
= netdev_priv(dev
);
1360 struct sockaddr
*addr
= p
;
1363 if (netif_running(dev
))
1366 if (!is_valid_ether_addr(addr
->sa_data
))
1369 memcpy(dev
->dev_addr
, addr
->sa_data
, dev
->addr_len
);
1371 spin_lock_irq(&bp
->lock
);
1373 val
= br32(bp
, B44_RXCONFIG
);
1374 if (!(val
& RXCONFIG_CAM_ABSENT
))
1375 __b44_set_mac_addr(bp
);
1377 spin_unlock_irq(&bp
->lock
);
1382 /* Called at device open time to get the chip ready for
1383 * packet processing. Invoked with bp->lock held.
1385 static void __b44_set_rx_mode(struct net_device
*);
1386 static void b44_init_hw(struct b44
*bp
, int reset_kind
)
1390 b44_chip_reset(bp
, B44_CHIP_RESET_FULL
);
1391 if (reset_kind
== B44_FULL_RESET
) {
1396 /* Enable CRC32, set proper LED modes and power on PHY */
1397 bw32(bp
, B44_MAC_CTRL
, MAC_CTRL_CRC32_ENAB
| MAC_CTRL_PHY_LEDCTRL
);
1398 bw32(bp
, B44_RCV_LAZY
, (1 << RCV_LAZY_FC_SHIFT
));
1400 /* This sets the MAC address too. */
1401 __b44_set_rx_mode(bp
->dev
);
1403 /* MTU + eth header + possible VLAN tag + struct rx_header */
1404 bw32(bp
, B44_RXMAXLEN
, bp
->dev
->mtu
+ ETH_HLEN
+ 8 + RX_HEADER_LEN
);
1405 bw32(bp
, B44_TXMAXLEN
, bp
->dev
->mtu
+ ETH_HLEN
+ 8 + RX_HEADER_LEN
);
1407 bw32(bp
, B44_TX_WMARK
, 56); /* XXX magic */
1408 if (reset_kind
== B44_PARTIAL_RESET
) {
1409 bw32(bp
, B44_DMARX_CTRL
, (DMARX_CTRL_ENABLE
|
1410 (RX_PKT_OFFSET
<< DMARX_CTRL_ROSHIFT
)));
1412 bw32(bp
, B44_DMATX_CTRL
, DMATX_CTRL_ENABLE
);
1413 bw32(bp
, B44_DMATX_ADDR
, bp
->tx_ring_dma
+ bp
->dma_offset
);
1414 bw32(bp
, B44_DMARX_CTRL
, (DMARX_CTRL_ENABLE
|
1415 (RX_PKT_OFFSET
<< DMARX_CTRL_ROSHIFT
)));
1416 bw32(bp
, B44_DMARX_ADDR
, bp
->rx_ring_dma
+ bp
->dma_offset
);
1418 bw32(bp
, B44_DMARX_PTR
, bp
->rx_pending
);
1419 bp
->rx_prod
= bp
->rx_pending
;
1421 bw32(bp
, B44_MIB_CTRL
, MIB_CTRL_CLR_ON_READ
);
1424 val
= br32(bp
, B44_ENET_CTRL
);
1425 bw32(bp
, B44_ENET_CTRL
, (val
| ENET_CTRL_ENABLE
));
1428 static int b44_open(struct net_device
*dev
)
1430 struct b44
*bp
= netdev_priv(dev
);
1433 err
= b44_alloc_consistent(bp
, GFP_KERNEL
);
1437 napi_enable(&bp
->napi
);
1440 b44_init_hw(bp
, B44_FULL_RESET
);
1444 err
= request_irq(dev
->irq
, b44_interrupt
, IRQF_SHARED
, dev
->name
, dev
);
1445 if (unlikely(err
< 0)) {
1446 napi_disable(&bp
->napi
);
1447 b44_chip_reset(bp
, B44_CHIP_RESET_PARTIAL
);
1449 b44_free_consistent(bp
);
1453 init_timer(&bp
->timer
);
1454 bp
->timer
.expires
= jiffies
+ HZ
;
1455 bp
->timer
.data
= (unsigned long) bp
;
1456 bp
->timer
.function
= b44_timer
;
1457 add_timer(&bp
->timer
);
1459 b44_enable_ints(bp
);
1460 netif_start_queue(dev
);
1465 #ifdef CONFIG_NET_POLL_CONTROLLER
1467 * Polling receive - used by netconsole and other diagnostic tools
1468 * to allow network i/o with interrupts disabled.
1470 static void b44_poll_controller(struct net_device
*dev
)
1472 disable_irq(dev
->irq
);
1473 b44_interrupt(dev
->irq
, dev
);
1474 enable_irq(dev
->irq
);
1478 static void bwfilter_table(struct b44
*bp
, u8
*pp
, u32 bytes
, u32 table_offset
)
1481 u32
*pattern
= (u32
*) pp
;
1483 for (i
= 0; i
< bytes
; i
+= sizeof(u32
)) {
1484 bw32(bp
, B44_FILT_ADDR
, table_offset
+ i
);
1485 bw32(bp
, B44_FILT_DATA
, pattern
[i
/ sizeof(u32
)]);
1489 static int b44_magic_pattern(u8
*macaddr
, u8
*ppattern
, u8
*pmask
, int offset
)
1492 int k
, j
, len
= offset
;
1493 int ethaddr_bytes
= ETH_ALEN
;
1495 memset(ppattern
+ offset
, 0xff, magicsync
);
1496 for (j
= 0; j
< magicsync
; j
++)
1497 set_bit(len
++, (unsigned long *) pmask
);
1499 for (j
= 0; j
< B44_MAX_PATTERNS
; j
++) {
1500 if ((B44_PATTERN_SIZE
- len
) >= ETH_ALEN
)
1501 ethaddr_bytes
= ETH_ALEN
;
1503 ethaddr_bytes
= B44_PATTERN_SIZE
- len
;
1504 if (ethaddr_bytes
<=0)
1506 for (k
= 0; k
< ethaddr_bytes
; k
++) {
1507 ppattern
[offset
+ magicsync
+
1508 (j
* ETH_ALEN
) + k
] = macaddr
[k
];
1510 set_bit(len
, (unsigned long *) pmask
);
1516 /* Setup magic packet patterns in the b44 WOL
1517 * pattern matching filter.
1519 static void b44_setup_pseudo_magicp(struct b44
*bp
)
1523 int plen0
, plen1
, plen2
;
1525 u8 pwol_mask
[B44_PMASK_SIZE
];
1527 pwol_pattern
= kzalloc(B44_PATTERN_SIZE
, GFP_KERNEL
);
1528 if (!pwol_pattern
) {
1529 printk(KERN_ERR PFX
"Memory not available for WOL\n");
1533 /* Ipv4 magic packet pattern - pattern 0.*/
1534 memset(pwol_mask
, 0, B44_PMASK_SIZE
);
1535 plen0
= b44_magic_pattern(bp
->dev
->dev_addr
, pwol_pattern
, pwol_mask
,
1536 B44_ETHIPV4UDP_HLEN
);
1538 bwfilter_table(bp
, pwol_pattern
, B44_PATTERN_SIZE
, B44_PATTERN_BASE
);
1539 bwfilter_table(bp
, pwol_mask
, B44_PMASK_SIZE
, B44_PMASK_BASE
);
1541 /* Raw ethernet II magic packet pattern - pattern 1 */
1542 memset(pwol_pattern
, 0, B44_PATTERN_SIZE
);
1543 memset(pwol_mask
, 0, B44_PMASK_SIZE
);
1544 plen1
= b44_magic_pattern(bp
->dev
->dev_addr
, pwol_pattern
, pwol_mask
,
1547 bwfilter_table(bp
, pwol_pattern
, B44_PATTERN_SIZE
,
1548 B44_PATTERN_BASE
+ B44_PATTERN_SIZE
);
1549 bwfilter_table(bp
, pwol_mask
, B44_PMASK_SIZE
,
1550 B44_PMASK_BASE
+ B44_PMASK_SIZE
);
1552 /* Ipv6 magic packet pattern - pattern 2 */
1553 memset(pwol_pattern
, 0, B44_PATTERN_SIZE
);
1554 memset(pwol_mask
, 0, B44_PMASK_SIZE
);
1555 plen2
= b44_magic_pattern(bp
->dev
->dev_addr
, pwol_pattern
, pwol_mask
,
1556 B44_ETHIPV6UDP_HLEN
);
1558 bwfilter_table(bp
, pwol_pattern
, B44_PATTERN_SIZE
,
1559 B44_PATTERN_BASE
+ B44_PATTERN_SIZE
+ B44_PATTERN_SIZE
);
1560 bwfilter_table(bp
, pwol_mask
, B44_PMASK_SIZE
,
1561 B44_PMASK_BASE
+ B44_PMASK_SIZE
+ B44_PMASK_SIZE
);
1563 kfree(pwol_pattern
);
1565 /* set these pattern's lengths: one less than each real length */
1566 val
= plen0
| (plen1
<< 8) | (plen2
<< 16) | WKUP_LEN_ENABLE_THREE
;
1567 bw32(bp
, B44_WKUP_LEN
, val
);
1569 /* enable wakeup pattern matching */
1570 val
= br32(bp
, B44_DEVCTRL
);
1571 bw32(bp
, B44_DEVCTRL
, val
| DEVCTRL_PFE
);
1575 #ifdef CONFIG_B44_PCI
1576 static void b44_setup_wol_pci(struct b44
*bp
)
1580 if (bp
->sdev
->bus
->bustype
!= SSB_BUSTYPE_SSB
) {
1581 bw32(bp
, SSB_TMSLOW
, br32(bp
, SSB_TMSLOW
) | SSB_TMSLOW_PE
);
1582 pci_read_config_word(bp
->sdev
->bus
->host_pci
, SSB_PMCSR
, &val
);
1583 pci_write_config_word(bp
->sdev
->bus
->host_pci
, SSB_PMCSR
, val
| SSB_PE
);
1587 static inline void b44_setup_wol_pci(struct b44
*bp
) { }
1588 #endif /* CONFIG_B44_PCI */
1590 static void b44_setup_wol(struct b44
*bp
)
1594 bw32(bp
, B44_RXCONFIG
, RXCONFIG_ALLMULTI
);
1596 if (bp
->flags
& B44_FLAG_B0_ANDLATER
) {
1598 bw32(bp
, B44_WKUP_LEN
, WKUP_LEN_DISABLE
);
1600 val
= bp
->dev
->dev_addr
[2] << 24 |
1601 bp
->dev
->dev_addr
[3] << 16 |
1602 bp
->dev
->dev_addr
[4] << 8 |
1603 bp
->dev
->dev_addr
[5];
1604 bw32(bp
, B44_ADDR_LO
, val
);
1606 val
= bp
->dev
->dev_addr
[0] << 8 |
1607 bp
->dev
->dev_addr
[1];
1608 bw32(bp
, B44_ADDR_HI
, val
);
1610 val
= br32(bp
, B44_DEVCTRL
);
1611 bw32(bp
, B44_DEVCTRL
, val
| DEVCTRL_MPM
| DEVCTRL_PFE
);
1614 b44_setup_pseudo_magicp(bp
);
1616 b44_setup_wol_pci(bp
);
1619 static int b44_close(struct net_device
*dev
)
1621 struct b44
*bp
= netdev_priv(dev
);
1623 netif_stop_queue(dev
);
1625 napi_disable(&bp
->napi
);
1627 del_timer_sync(&bp
->timer
);
1629 spin_lock_irq(&bp
->lock
);
1633 netif_carrier_off(dev
);
1635 spin_unlock_irq(&bp
->lock
);
1637 free_irq(dev
->irq
, dev
);
1639 if (bp
->flags
& B44_FLAG_WOL_ENABLE
) {
1640 b44_init_hw(bp
, B44_PARTIAL_RESET
);
1644 b44_free_consistent(bp
);
1649 static struct net_device_stats
*b44_get_stats(struct net_device
*dev
)
1651 struct b44
*bp
= netdev_priv(dev
);
1652 struct net_device_stats
*nstat
= &dev
->stats
;
1653 struct b44_hw_stats
*hwstat
= &bp
->hw_stats
;
1655 /* Convert HW stats into netdevice stats. */
1656 nstat
->rx_packets
= hwstat
->rx_pkts
;
1657 nstat
->tx_packets
= hwstat
->tx_pkts
;
1658 nstat
->rx_bytes
= hwstat
->rx_octets
;
1659 nstat
->tx_bytes
= hwstat
->tx_octets
;
1660 nstat
->tx_errors
= (hwstat
->tx_jabber_pkts
+
1661 hwstat
->tx_oversize_pkts
+
1662 hwstat
->tx_underruns
+
1663 hwstat
->tx_excessive_cols
+
1664 hwstat
->tx_late_cols
);
1665 nstat
->multicast
= hwstat
->tx_multicast_pkts
;
1666 nstat
->collisions
= hwstat
->tx_total_cols
;
1668 nstat
->rx_length_errors
= (hwstat
->rx_oversize_pkts
+
1669 hwstat
->rx_undersize
);
1670 nstat
->rx_over_errors
= hwstat
->rx_missed_pkts
;
1671 nstat
->rx_frame_errors
= hwstat
->rx_align_errs
;
1672 nstat
->rx_crc_errors
= hwstat
->rx_crc_errs
;
1673 nstat
->rx_errors
= (hwstat
->rx_jabber_pkts
+
1674 hwstat
->rx_oversize_pkts
+
1675 hwstat
->rx_missed_pkts
+
1676 hwstat
->rx_crc_align_errs
+
1677 hwstat
->rx_undersize
+
1678 hwstat
->rx_crc_errs
+
1679 hwstat
->rx_align_errs
+
1680 hwstat
->rx_symbol_errs
);
1682 nstat
->tx_aborted_errors
= hwstat
->tx_underruns
;
1684 /* Carrier lost counter seems to be broken for some devices */
1685 nstat
->tx_carrier_errors
= hwstat
->tx_carrier_lost
;
1691 static int __b44_load_mcast(struct b44
*bp
, struct net_device
*dev
)
1693 struct dev_mc_list
*mclist
;
1696 num_ents
= min_t(int, dev
->mc_count
, B44_MCAST_TABLE_SIZE
);
1697 mclist
= dev
->mc_list
;
1698 for (i
= 0; mclist
&& i
< num_ents
; i
++, mclist
= mclist
->next
) {
1699 __b44_cam_write(bp
, mclist
->dmi_addr
, i
+ 1);
1704 static void __b44_set_rx_mode(struct net_device
*dev
)
1706 struct b44
*bp
= netdev_priv(dev
);
1709 val
= br32(bp
, B44_RXCONFIG
);
1710 val
&= ~(RXCONFIG_PROMISC
| RXCONFIG_ALLMULTI
);
1711 if ((dev
->flags
& IFF_PROMISC
) || (val
& RXCONFIG_CAM_ABSENT
)) {
1712 val
|= RXCONFIG_PROMISC
;
1713 bw32(bp
, B44_RXCONFIG
, val
);
1715 unsigned char zero
[6] = {0, 0, 0, 0, 0, 0};
1718 __b44_set_mac_addr(bp
);
1720 if ((dev
->flags
& IFF_ALLMULTI
) ||
1721 (dev
->mc_count
> B44_MCAST_TABLE_SIZE
))
1722 val
|= RXCONFIG_ALLMULTI
;
1724 i
= __b44_load_mcast(bp
, dev
);
1727 __b44_cam_write(bp
, zero
, i
);
1729 bw32(bp
, B44_RXCONFIG
, val
);
1730 val
= br32(bp
, B44_CAM_CTRL
);
1731 bw32(bp
, B44_CAM_CTRL
, val
| CAM_CTRL_ENABLE
);
1735 static void b44_set_rx_mode(struct net_device
*dev
)
1737 struct b44
*bp
= netdev_priv(dev
);
1739 spin_lock_irq(&bp
->lock
);
1740 __b44_set_rx_mode(dev
);
1741 spin_unlock_irq(&bp
->lock
);
1744 static u32
b44_get_msglevel(struct net_device
*dev
)
1746 struct b44
*bp
= netdev_priv(dev
);
1747 return bp
->msg_enable
;
1750 static void b44_set_msglevel(struct net_device
*dev
, u32 value
)
1752 struct b44
*bp
= netdev_priv(dev
);
1753 bp
->msg_enable
= value
;
1756 static void b44_get_drvinfo (struct net_device
*dev
, struct ethtool_drvinfo
*info
)
1758 struct b44
*bp
= netdev_priv(dev
);
1759 struct ssb_bus
*bus
= bp
->sdev
->bus
;
1761 strlcpy(info
->driver
, DRV_MODULE_NAME
, sizeof(info
->driver
));
1762 strlcpy(info
->version
, DRV_MODULE_VERSION
, sizeof(info
->version
));
1763 switch (bus
->bustype
) {
1764 case SSB_BUSTYPE_PCI
:
1765 strlcpy(info
->bus_info
, pci_name(bus
->host_pci
), sizeof(info
->bus_info
));
1767 case SSB_BUSTYPE_PCMCIA
:
1768 case SSB_BUSTYPE_SSB
:
1769 strlcpy(info
->bus_info
, "SSB", sizeof(info
->bus_info
));
1774 static int b44_nway_reset(struct net_device
*dev
)
1776 struct b44
*bp
= netdev_priv(dev
);
1780 spin_lock_irq(&bp
->lock
);
1781 b44_readphy(bp
, MII_BMCR
, &bmcr
);
1782 b44_readphy(bp
, MII_BMCR
, &bmcr
);
1784 if (bmcr
& BMCR_ANENABLE
) {
1785 b44_writephy(bp
, MII_BMCR
,
1786 bmcr
| BMCR_ANRESTART
);
1789 spin_unlock_irq(&bp
->lock
);
1794 static int b44_get_settings(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
1796 struct b44
*bp
= netdev_priv(dev
);
1798 cmd
->supported
= (SUPPORTED_Autoneg
);
1799 cmd
->supported
|= (SUPPORTED_100baseT_Half
|
1800 SUPPORTED_100baseT_Full
|
1801 SUPPORTED_10baseT_Half
|
1802 SUPPORTED_10baseT_Full
|
1805 cmd
->advertising
= 0;
1806 if (bp
->flags
& B44_FLAG_ADV_10HALF
)
1807 cmd
->advertising
|= ADVERTISED_10baseT_Half
;
1808 if (bp
->flags
& B44_FLAG_ADV_10FULL
)
1809 cmd
->advertising
|= ADVERTISED_10baseT_Full
;
1810 if (bp
->flags
& B44_FLAG_ADV_100HALF
)
1811 cmd
->advertising
|= ADVERTISED_100baseT_Half
;
1812 if (bp
->flags
& B44_FLAG_ADV_100FULL
)
1813 cmd
->advertising
|= ADVERTISED_100baseT_Full
;
1814 cmd
->advertising
|= ADVERTISED_Pause
| ADVERTISED_Asym_Pause
;
1815 cmd
->speed
= (bp
->flags
& B44_FLAG_100_BASE_T
) ?
1816 SPEED_100
: SPEED_10
;
1817 cmd
->duplex
= (bp
->flags
& B44_FLAG_FULL_DUPLEX
) ?
1818 DUPLEX_FULL
: DUPLEX_HALF
;
1820 cmd
->phy_address
= bp
->phy_addr
;
1821 cmd
->transceiver
= (bp
->flags
& B44_FLAG_INTERNAL_PHY
) ?
1822 XCVR_INTERNAL
: XCVR_EXTERNAL
;
1823 cmd
->autoneg
= (bp
->flags
& B44_FLAG_FORCE_LINK
) ?
1824 AUTONEG_DISABLE
: AUTONEG_ENABLE
;
1825 if (cmd
->autoneg
== AUTONEG_ENABLE
)
1826 cmd
->advertising
|= ADVERTISED_Autoneg
;
1827 if (!netif_running(dev
)){
1836 static int b44_set_settings(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
1838 struct b44
*bp
= netdev_priv(dev
);
1840 /* We do not support gigabit. */
1841 if (cmd
->autoneg
== AUTONEG_ENABLE
) {
1842 if (cmd
->advertising
&
1843 (ADVERTISED_1000baseT_Half
|
1844 ADVERTISED_1000baseT_Full
))
1846 } else if ((cmd
->speed
!= SPEED_100
&&
1847 cmd
->speed
!= SPEED_10
) ||
1848 (cmd
->duplex
!= DUPLEX_HALF
&&
1849 cmd
->duplex
!= DUPLEX_FULL
)) {
1853 spin_lock_irq(&bp
->lock
);
1855 if (cmd
->autoneg
== AUTONEG_ENABLE
) {
1856 bp
->flags
&= ~(B44_FLAG_FORCE_LINK
|
1857 B44_FLAG_100_BASE_T
|
1858 B44_FLAG_FULL_DUPLEX
|
1859 B44_FLAG_ADV_10HALF
|
1860 B44_FLAG_ADV_10FULL
|
1861 B44_FLAG_ADV_100HALF
|
1862 B44_FLAG_ADV_100FULL
);
1863 if (cmd
->advertising
== 0) {
1864 bp
->flags
|= (B44_FLAG_ADV_10HALF
|
1865 B44_FLAG_ADV_10FULL
|
1866 B44_FLAG_ADV_100HALF
|
1867 B44_FLAG_ADV_100FULL
);
1869 if (cmd
->advertising
& ADVERTISED_10baseT_Half
)
1870 bp
->flags
|= B44_FLAG_ADV_10HALF
;
1871 if (cmd
->advertising
& ADVERTISED_10baseT_Full
)
1872 bp
->flags
|= B44_FLAG_ADV_10FULL
;
1873 if (cmd
->advertising
& ADVERTISED_100baseT_Half
)
1874 bp
->flags
|= B44_FLAG_ADV_100HALF
;
1875 if (cmd
->advertising
& ADVERTISED_100baseT_Full
)
1876 bp
->flags
|= B44_FLAG_ADV_100FULL
;
1879 bp
->flags
|= B44_FLAG_FORCE_LINK
;
1880 bp
->flags
&= ~(B44_FLAG_100_BASE_T
| B44_FLAG_FULL_DUPLEX
);
1881 if (cmd
->speed
== SPEED_100
)
1882 bp
->flags
|= B44_FLAG_100_BASE_T
;
1883 if (cmd
->duplex
== DUPLEX_FULL
)
1884 bp
->flags
|= B44_FLAG_FULL_DUPLEX
;
1887 if (netif_running(dev
))
1890 spin_unlock_irq(&bp
->lock
);
1895 static void b44_get_ringparam(struct net_device
*dev
,
1896 struct ethtool_ringparam
*ering
)
1898 struct b44
*bp
= netdev_priv(dev
);
1900 ering
->rx_max_pending
= B44_RX_RING_SIZE
- 1;
1901 ering
->rx_pending
= bp
->rx_pending
;
1903 /* XXX ethtool lacks a tx_max_pending, oops... */
1906 static int b44_set_ringparam(struct net_device
*dev
,
1907 struct ethtool_ringparam
*ering
)
1909 struct b44
*bp
= netdev_priv(dev
);
1911 if ((ering
->rx_pending
> B44_RX_RING_SIZE
- 1) ||
1912 (ering
->rx_mini_pending
!= 0) ||
1913 (ering
->rx_jumbo_pending
!= 0) ||
1914 (ering
->tx_pending
> B44_TX_RING_SIZE
- 1))
1917 spin_lock_irq(&bp
->lock
);
1919 bp
->rx_pending
= ering
->rx_pending
;
1920 bp
->tx_pending
= ering
->tx_pending
;
1924 b44_init_hw(bp
, B44_FULL_RESET
);
1925 netif_wake_queue(bp
->dev
);
1926 spin_unlock_irq(&bp
->lock
);
1928 b44_enable_ints(bp
);
1933 static void b44_get_pauseparam(struct net_device
*dev
,
1934 struct ethtool_pauseparam
*epause
)
1936 struct b44
*bp
= netdev_priv(dev
);
1939 (bp
->flags
& B44_FLAG_PAUSE_AUTO
) != 0;
1941 (bp
->flags
& B44_FLAG_RX_PAUSE
) != 0;
1943 (bp
->flags
& B44_FLAG_TX_PAUSE
) != 0;
1946 static int b44_set_pauseparam(struct net_device
*dev
,
1947 struct ethtool_pauseparam
*epause
)
1949 struct b44
*bp
= netdev_priv(dev
);
1951 spin_lock_irq(&bp
->lock
);
1952 if (epause
->autoneg
)
1953 bp
->flags
|= B44_FLAG_PAUSE_AUTO
;
1955 bp
->flags
&= ~B44_FLAG_PAUSE_AUTO
;
1956 if (epause
->rx_pause
)
1957 bp
->flags
|= B44_FLAG_RX_PAUSE
;
1959 bp
->flags
&= ~B44_FLAG_RX_PAUSE
;
1960 if (epause
->tx_pause
)
1961 bp
->flags
|= B44_FLAG_TX_PAUSE
;
1963 bp
->flags
&= ~B44_FLAG_TX_PAUSE
;
1964 if (bp
->flags
& B44_FLAG_PAUSE_AUTO
) {
1967 b44_init_hw(bp
, B44_FULL_RESET
);
1969 __b44_set_flow_ctrl(bp
, bp
->flags
);
1971 spin_unlock_irq(&bp
->lock
);
1973 b44_enable_ints(bp
);
1978 static void b44_get_strings(struct net_device
*dev
, u32 stringset
, u8
*data
)
1982 memcpy(data
, *b44_gstrings
, sizeof(b44_gstrings
));
1987 static int b44_get_sset_count(struct net_device
*dev
, int sset
)
1991 return ARRAY_SIZE(b44_gstrings
);
1997 static void b44_get_ethtool_stats(struct net_device
*dev
,
1998 struct ethtool_stats
*stats
, u64
*data
)
2000 struct b44
*bp
= netdev_priv(dev
);
2001 u32
*val
= &bp
->hw_stats
.tx_good_octets
;
2004 spin_lock_irq(&bp
->lock
);
2006 b44_stats_update(bp
);
2008 for (i
= 0; i
< ARRAY_SIZE(b44_gstrings
); i
++)
2011 spin_unlock_irq(&bp
->lock
);
2014 static void b44_get_wol(struct net_device
*dev
, struct ethtool_wolinfo
*wol
)
2016 struct b44
*bp
= netdev_priv(dev
);
2018 wol
->supported
= WAKE_MAGIC
;
2019 if (bp
->flags
& B44_FLAG_WOL_ENABLE
)
2020 wol
->wolopts
= WAKE_MAGIC
;
2023 memset(&wol
->sopass
, 0, sizeof(wol
->sopass
));
2026 static int b44_set_wol(struct net_device
*dev
, struct ethtool_wolinfo
*wol
)
2028 struct b44
*bp
= netdev_priv(dev
);
2030 spin_lock_irq(&bp
->lock
);
2031 if (wol
->wolopts
& WAKE_MAGIC
)
2032 bp
->flags
|= B44_FLAG_WOL_ENABLE
;
2034 bp
->flags
&= ~B44_FLAG_WOL_ENABLE
;
2035 spin_unlock_irq(&bp
->lock
);
2040 static const struct ethtool_ops b44_ethtool_ops
= {
2041 .get_drvinfo
= b44_get_drvinfo
,
2042 .get_settings
= b44_get_settings
,
2043 .set_settings
= b44_set_settings
,
2044 .nway_reset
= b44_nway_reset
,
2045 .get_link
= ethtool_op_get_link
,
2046 .get_wol
= b44_get_wol
,
2047 .set_wol
= b44_set_wol
,
2048 .get_ringparam
= b44_get_ringparam
,
2049 .set_ringparam
= b44_set_ringparam
,
2050 .get_pauseparam
= b44_get_pauseparam
,
2051 .set_pauseparam
= b44_set_pauseparam
,
2052 .get_msglevel
= b44_get_msglevel
,
2053 .set_msglevel
= b44_set_msglevel
,
2054 .get_strings
= b44_get_strings
,
2055 .get_sset_count
= b44_get_sset_count
,
2056 .get_ethtool_stats
= b44_get_ethtool_stats
,
2059 static int b44_ioctl(struct net_device
*dev
, struct ifreq
*ifr
, int cmd
)
2061 struct mii_ioctl_data
*data
= if_mii(ifr
);
2062 struct b44
*bp
= netdev_priv(dev
);
2065 if (!netif_running(dev
))
2068 spin_lock_irq(&bp
->lock
);
2069 err
= generic_mii_ioctl(&bp
->mii_if
, data
, cmd
, NULL
);
2070 spin_unlock_irq(&bp
->lock
);
2075 static int __devinit
b44_get_invariants(struct b44
*bp
)
2077 struct ssb_device
*sdev
= bp
->sdev
;
2081 bp
->dma_offset
= ssb_dma_translation(sdev
);
2083 if (sdev
->bus
->bustype
== SSB_BUSTYPE_SSB
&&
2085 addr
= sdev
->bus
->sprom
.et1mac
;
2086 bp
->phy_addr
= sdev
->bus
->sprom
.et1phyaddr
;
2088 addr
= sdev
->bus
->sprom
.et0mac
;
2089 bp
->phy_addr
= sdev
->bus
->sprom
.et0phyaddr
;
2091 /* Some ROMs have buggy PHY addresses with the high
2092 * bits set (sign extension?). Truncate them to a
2093 * valid PHY address. */
2094 bp
->phy_addr
&= 0x1F;
2096 memcpy(bp
->dev
->dev_addr
, addr
, 6);
2098 if (!is_valid_ether_addr(&bp
->dev
->dev_addr
[0])){
2099 printk(KERN_ERR PFX
"Invalid MAC address found in EEPROM\n");
2103 memcpy(bp
->dev
->perm_addr
, bp
->dev
->dev_addr
, bp
->dev
->addr_len
);
2105 bp
->imask
= IMASK_DEF
;
2107 /* XXX - really required?
2108 bp->flags |= B44_FLAG_BUGGY_TXPTR;
2111 if (bp
->sdev
->id
.revision
>= 7)
2112 bp
->flags
|= B44_FLAG_B0_ANDLATER
;
2117 static const struct net_device_ops b44_netdev_ops
= {
2118 .ndo_open
= b44_open
,
2119 .ndo_stop
= b44_close
,
2120 .ndo_start_xmit
= b44_start_xmit
,
2121 .ndo_get_stats
= b44_get_stats
,
2122 .ndo_set_multicast_list
= b44_set_rx_mode
,
2123 .ndo_set_mac_address
= b44_set_mac_addr
,
2124 .ndo_validate_addr
= eth_validate_addr
,
2125 .ndo_do_ioctl
= b44_ioctl
,
2126 .ndo_tx_timeout
= b44_tx_timeout
,
2127 .ndo_change_mtu
= b44_change_mtu
,
2128 #ifdef CONFIG_NET_POLL_CONTROLLER
2129 .ndo_poll_controller
= b44_poll_controller
,
2133 static int __devinit
b44_init_one(struct ssb_device
*sdev
,
2134 const struct ssb_device_id
*ent
)
2136 static int b44_version_printed
= 0;
2137 struct net_device
*dev
;
2143 if (b44_version_printed
++ == 0)
2144 printk(KERN_INFO
"%s", version
);
2147 dev
= alloc_etherdev(sizeof(*bp
));
2149 dev_err(sdev
->dev
, "Etherdev alloc failed, aborting.\n");
2154 SET_NETDEV_DEV(dev
, sdev
->dev
);
2156 /* No interesting netdevice features in this card... */
2159 bp
= netdev_priv(dev
);
2162 bp
->force_copybreak
= 0;
2164 bp
->msg_enable
= netif_msg_init(b44_debug
, B44_DEF_MSG_ENABLE
);
2166 spin_lock_init(&bp
->lock
);
2168 bp
->rx_pending
= B44_DEF_RX_RING_PENDING
;
2169 bp
->tx_pending
= B44_DEF_TX_RING_PENDING
;
2171 dev
->netdev_ops
= &b44_netdev_ops
;
2172 netif_napi_add(dev
, &bp
->napi
, b44_poll
, 64);
2173 dev
->watchdog_timeo
= B44_TX_TIMEOUT
;
2174 dev
->irq
= sdev
->irq
;
2175 SET_ETHTOOL_OPS(dev
, &b44_ethtool_ops
);
2177 netif_carrier_off(dev
);
2179 err
= ssb_bus_powerup(sdev
->bus
, 0);
2182 "Failed to powerup the bus\n");
2183 goto err_out_free_dev
;
2185 err
= ssb_dma_set_mask(sdev
, DMA_BIT_MASK(30));
2188 "Required 30BIT DMA mask unsupported by the system.\n");
2189 goto err_out_powerdown
;
2191 err
= b44_get_invariants(bp
);
2194 "Problem fetching invariants of chip, aborting.\n");
2195 goto err_out_powerdown
;
2198 bp
->mii_if
.dev
= dev
;
2199 bp
->mii_if
.mdio_read
= b44_mii_read
;
2200 bp
->mii_if
.mdio_write
= b44_mii_write
;
2201 bp
->mii_if
.phy_id
= bp
->phy_addr
;
2202 bp
->mii_if
.phy_id_mask
= 0x1f;
2203 bp
->mii_if
.reg_num_mask
= 0x1f;
2205 /* By default, advertise all speed/duplex settings. */
2206 bp
->flags
|= (B44_FLAG_ADV_10HALF
| B44_FLAG_ADV_10FULL
|
2207 B44_FLAG_ADV_100HALF
| B44_FLAG_ADV_100FULL
);
2209 /* By default, auto-negotiate PAUSE. */
2210 bp
->flags
|= B44_FLAG_PAUSE_AUTO
;
2212 err
= register_netdev(dev
);
2214 dev_err(sdev
->dev
, "Cannot register net device, aborting.\n");
2215 goto err_out_powerdown
;
2218 ssb_set_drvdata(sdev
, dev
);
2220 /* Chip reset provides power to the b44 MAC & PCI cores, which
2221 * is necessary for MAC register access.
2223 b44_chip_reset(bp
, B44_CHIP_RESET_FULL
);
2225 printk(KERN_INFO
"%s: Broadcom 44xx/47xx 10/100BaseT Ethernet %pM\n",
2226 dev
->name
, dev
->dev_addr
);
2231 ssb_bus_may_powerdown(sdev
->bus
);
2240 static void __devexit
b44_remove_one(struct ssb_device
*sdev
)
2242 struct net_device
*dev
= ssb_get_drvdata(sdev
);
2244 unregister_netdev(dev
);
2245 ssb_device_disable(sdev
, 0);
2246 ssb_bus_may_powerdown(sdev
->bus
);
2248 ssb_pcihost_set_power_state(sdev
, PCI_D3hot
);
2249 ssb_set_drvdata(sdev
, NULL
);
2252 static int b44_suspend(struct ssb_device
*sdev
, pm_message_t state
)
2254 struct net_device
*dev
= ssb_get_drvdata(sdev
);
2255 struct b44
*bp
= netdev_priv(dev
);
2257 if (!netif_running(dev
))
2260 del_timer_sync(&bp
->timer
);
2262 spin_lock_irq(&bp
->lock
);
2265 netif_carrier_off(bp
->dev
);
2266 netif_device_detach(bp
->dev
);
2269 spin_unlock_irq(&bp
->lock
);
2271 free_irq(dev
->irq
, dev
);
2272 if (bp
->flags
& B44_FLAG_WOL_ENABLE
) {
2273 b44_init_hw(bp
, B44_PARTIAL_RESET
);
2277 ssb_pcihost_set_power_state(sdev
, PCI_D3hot
);
2281 static int b44_resume(struct ssb_device
*sdev
)
2283 struct net_device
*dev
= ssb_get_drvdata(sdev
);
2284 struct b44
*bp
= netdev_priv(dev
);
2287 rc
= ssb_bus_powerup(sdev
->bus
, 0);
2290 "Failed to powerup the bus\n");
2294 if (!netif_running(dev
))
2297 rc
= request_irq(dev
->irq
, b44_interrupt
, IRQF_SHARED
, dev
->name
, dev
);
2299 printk(KERN_ERR PFX
"%s: request_irq failed\n", dev
->name
);
2303 spin_lock_irq(&bp
->lock
);
2306 b44_init_hw(bp
, B44_FULL_RESET
);
2307 netif_device_attach(bp
->dev
);
2308 spin_unlock_irq(&bp
->lock
);
2310 b44_enable_ints(bp
);
2311 netif_wake_queue(dev
);
2313 mod_timer(&bp
->timer
, jiffies
+ 1);
2318 static struct ssb_driver b44_ssb_driver
= {
2319 .name
= DRV_MODULE_NAME
,
2320 .id_table
= b44_ssb_tbl
,
2321 .probe
= b44_init_one
,
2322 .remove
= __devexit_p(b44_remove_one
),
2323 .suspend
= b44_suspend
,
2324 .resume
= b44_resume
,
2327 static inline int b44_pci_init(void)
2330 #ifdef CONFIG_B44_PCI
2331 err
= ssb_pcihost_register(&b44_pci_driver
);
2336 static inline void b44_pci_exit(void)
2338 #ifdef CONFIG_B44_PCI
2339 ssb_pcihost_unregister(&b44_pci_driver
);
2343 static int __init
b44_init(void)
2345 unsigned int dma_desc_align_size
= dma_get_cache_alignment();
2348 /* Setup paramaters for syncing RX/TX DMA descriptors */
2349 dma_desc_align_mask
= ~(dma_desc_align_size
- 1);
2350 dma_desc_sync_size
= max_t(unsigned int, dma_desc_align_size
, sizeof(struct dma_desc
));
2352 err
= b44_pci_init();
2355 err
= ssb_driver_register(&b44_ssb_driver
);
2361 static void __exit
b44_cleanup(void)
2363 ssb_driver_unregister(&b44_ssb_driver
);
2367 module_init(b44_init
);
2368 module_exit(b44_cleanup
);