1 /* de2104x.c: A Linux PCI Ethernet driver for Intel/Digital 21040/1 chips. */
3 Copyright 2001,2003 Jeff Garzik <jgarzik@pobox.com>
5 Copyright 1994, 1995 Digital Equipment Corporation. [de4x5.c]
6 Written/copyright 1994-2001 by Donald Becker. [tulip.c]
8 This software may be used and distributed according to the terms of
9 the GNU General Public License (GPL), incorporated herein by reference.
10 Drivers based on or derived from this code fall under the GPL and must
11 retain the authorship, copyright and license notice. This file is not
12 a complete program and may only be used when the entire operating
13 system is licensed under the GPL.
15 See the file COPYING in this distribution for more information.
17 TODO, in rough priority order:
18 * Support forcing media type with a module parameter,
19 like dl2k.c/sundance.c
20 * Constants (module parms?) for Rx work limit
21 * Complete reset on PciErr
22 * Jumbo frames / dev->change_mtu
23 * Adjust Rx FIFO threshold and Max Rx DMA burst on Rx FIFO error
24 * Adjust Tx FIFO threshold and Max Tx DMA burst on Tx FIFO error
25 * Implement Tx software interrupt mitigation via
30 #define DRV_NAME "de2104x"
31 #define DRV_VERSION "0.7"
32 #define DRV_RELDATE "Mar 17, 2004"
34 #include <linux/module.h>
35 #include <linux/kernel.h>
36 #include <linux/netdevice.h>
37 #include <linux/etherdevice.h>
38 #include <linux/init.h>
39 #include <linux/pci.h>
40 #include <linux/delay.h>
41 #include <linux/ethtool.h>
42 #include <linux/compiler.h>
43 #include <linux/rtnetlink.h>
44 #include <linux/crc32.h>
45 #include <linux/slab.h>
49 #include <asm/uaccess.h>
50 #include <asm/unaligned.h>
52 /* These identify the driver base version and may not be removed. */
53 static char version
[] =
54 KERN_INFO DRV_NAME
" PCI Ethernet driver v" DRV_VERSION
" (" DRV_RELDATE
")\n";
56 MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>");
57 MODULE_DESCRIPTION("Intel/Digital 21040/1 series PCI Ethernet driver");
58 MODULE_LICENSE("GPL");
59 MODULE_VERSION(DRV_VERSION
);
61 static int debug
= -1;
62 module_param (debug
, int, 0);
63 MODULE_PARM_DESC (debug
, "de2104x bitmapped message enable number");
65 /* Set the copy breakpoint for the copy-only-tiny-buffer Rx structure. */
66 #if defined(__alpha__) || defined(__arm__) || defined(__hppa__) || \
67 defined(CONFIG_SPARC) || defined(__ia64__) || \
68 defined(__sh__) || defined(__mips__)
69 static int rx_copybreak
= 1518;
71 static int rx_copybreak
= 100;
73 module_param (rx_copybreak
, int, 0);
74 MODULE_PARM_DESC (rx_copybreak
, "de2104x Breakpoint at which Rx packets are copied");
76 #define PFX DRV_NAME ": "
78 #define DE_DEF_MSG_ENABLE (NETIF_MSG_DRV | \
86 /* Descriptor skip length in 32 bit longwords. */
87 #ifndef CONFIG_DE2104X_DSL
90 #define DSL CONFIG_DE2104X_DSL
93 #define DE_RX_RING_SIZE 64
94 #define DE_TX_RING_SIZE 64
95 #define DE_RING_BYTES \
96 ((sizeof(struct de_desc) * DE_RX_RING_SIZE) + \
97 (sizeof(struct de_desc) * DE_TX_RING_SIZE))
98 #define NEXT_TX(N) (((N) + 1) & (DE_TX_RING_SIZE - 1))
99 #define NEXT_RX(N) (((N) + 1) & (DE_RX_RING_SIZE - 1))
100 #define TX_BUFFS_AVAIL(CP) \
101 (((CP)->tx_tail <= (CP)->tx_head) ? \
102 (CP)->tx_tail + (DE_TX_RING_SIZE - 1) - (CP)->tx_head : \
103 (CP)->tx_tail - (CP)->tx_head - 1)
105 #define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
108 #define DE_SETUP_SKB ((struct sk_buff *) 1)
109 #define DE_DUMMY_SKB ((struct sk_buff *) 2)
110 #define DE_SETUP_FRAME_WORDS 96
111 #define DE_EEPROM_WORDS 256
112 #define DE_EEPROM_SIZE (DE_EEPROM_WORDS * sizeof(u16))
113 #define DE_MAX_MEDIA 5
115 #define DE_MEDIA_TP_AUTO 0
116 #define DE_MEDIA_BNC 1
117 #define DE_MEDIA_AUI 2
118 #define DE_MEDIA_TP 3
119 #define DE_MEDIA_TP_FD 4
120 #define DE_MEDIA_INVALID DE_MAX_MEDIA
121 #define DE_MEDIA_FIRST 0
122 #define DE_MEDIA_LAST (DE_MAX_MEDIA - 1)
123 #define DE_AUI_BNC (SUPPORTED_AUI | SUPPORTED_BNC)
125 #define DE_TIMER_LINK (60 * HZ)
126 #define DE_TIMER_NO_LINK (5 * HZ)
128 #define DE_NUM_REGS 16
129 #define DE_REGS_SIZE (DE_NUM_REGS * sizeof(u32))
130 #define DE_REGS_VER 1
132 /* Time in jiffies before concluding the transmitter is hung. */
133 #define TX_TIMEOUT (6*HZ)
135 /* This is a mysterious value that can be written to CSR11 in the 21040 (only)
136 to support a pre-NWay full-duplex signaling mechanism using short frames.
137 No one knows what it should be, but if left at its default value some
138 10base2(!) packets trigger a full-duplex-request interrupt. */
139 #define FULL_DUPLEX_MAGIC 0x6969
162 CacheAlign16
= 0x00008000,
163 BurstLen4
= 0x00000400,
164 DescSkipLen
= (DSL
<< 2),
167 NormalTxPoll
= (1 << 0),
168 NormalRxPoll
= (1 << 0),
170 /* Tx/Rx descriptor status bits */
173 RxErrLong
= (1 << 7),
175 RxErrFIFO
= (1 << 0),
176 RxErrRunt
= (1 << 11),
177 RxErrFrame
= (1 << 14),
179 FirstFrag
= (1 << 29),
180 LastFrag
= (1 << 30),
182 TxFIFOUnder
= (1 << 1),
183 TxLinkFail
= (1 << 2) | (1 << 10) | (1 << 11),
186 TxJabber
= (1 << 14),
187 SetupFrame
= (1 << 27),
198 TxState
= (1 << 22) | (1 << 21) | (1 << 20),
199 RxState
= (1 << 19) | (1 << 18) | (1 << 17),
200 LinkFail
= (1 << 12),
202 RxStopped
= (1 << 8),
203 TxStopped
= (1 << 1),
206 TxEnable
= (1 << 13),
208 RxTx
= TxEnable
| RxEnable
,
209 FullDuplex
= (1 << 9),
210 AcceptAllMulticast
= (1 << 7),
211 AcceptAllPhys
= (1 << 6),
213 MacModeClear
= (1<<12) | (1<<11) | (1<<10) | (1<<8) | (1<<3) |
214 RxTx
| BOCnt
| AcceptAllPhys
| AcceptAllMulticast
,
217 EE_SHIFT_CLK
= 0x02, /* EEPROM shift clock. */
218 EE_CS
= 0x01, /* EEPROM chip select. */
219 EE_DATA_WRITE
= 0x04, /* Data from the Tulip to EEPROM. */
222 EE_DATA_READ
= 0x08, /* Data from the EEPROM chip. */
223 EE_ENB
= (0x4800 | EE_CS
),
225 /* The EEPROM commands include the alway-set leading bit. */
229 RxMissedOver
= (1 << 16),
230 RxMissedMask
= 0xffff,
232 /* SROM-related bits */
234 MediaBlockMask
= 0x3f,
235 MediaCustomCSRs
= (1 << 6),
238 PM_Sleep
= (1 << 31),
239 PM_Snooze
= (1 << 30),
240 PM_Mask
= PM_Sleep
| PM_Snooze
,
243 NWayState
= (1 << 14) | (1 << 13) | (1 << 12),
244 NWayRestart
= (1 << 12),
245 NonselPortActive
= (1 << 9),
246 SelPortActive
= (1 << 8),
247 LinkFailStatus
= (1 << 2),
248 NetCxnErr
= (1 << 1),
251 static const u32 de_intr_mask
=
252 IntrOK
| IntrErr
| RxIntr
| RxEmpty
| TxIntr
| TxEmpty
|
253 LinkPass
| LinkFail
| PciErr
;
256 * Set the programmable burst length to 4 longwords for all:
257 * DMA errors result without these values. Cache align 16 long.
259 static const u32 de_bus_mode
= CacheAlign16
| BurstLen4
| DescSkipLen
;
261 struct de_srom_media_block
{
268 struct de_srom_info_leaf
{
285 u16 type
; /* DE_MEDIA_xxx */
302 struct net_device
*dev
;
305 struct de_desc
*rx_ring
;
306 struct de_desc
*tx_ring
;
307 struct ring_info tx_skb
[DE_TX_RING_SIZE
];
308 struct ring_info rx_skb
[DE_RX_RING_SIZE
];
314 struct net_device_stats net_stats
;
316 struct pci_dev
*pdev
;
318 u16 setup_frame
[DE_SETUP_FRAME_WORDS
];
323 struct media_info media
[DE_MAX_MEDIA
];
324 struct timer_list media_timer
;
328 unsigned de21040
: 1;
329 unsigned media_lock
: 1;
333 static void de_set_rx_mode (struct net_device
*dev
);
334 static void de_tx (struct de_private
*de
);
335 static void de_clean_rings (struct de_private
*de
);
336 static void de_media_interrupt (struct de_private
*de
, u32 status
);
337 static void de21040_media_timer (unsigned long data
);
338 static void de21041_media_timer (unsigned long data
);
339 static unsigned int de_ok_to_advertise (struct de_private
*de
, u32 new_media
);
342 static DEFINE_PCI_DEVICE_TABLE(de_pci_tbl
) = {
343 { PCI_VENDOR_ID_DEC
, PCI_DEVICE_ID_DEC_TULIP
,
344 PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0 },
345 { PCI_VENDOR_ID_DEC
, PCI_DEVICE_ID_DEC_TULIP_PLUS
,
346 PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 1 },
349 MODULE_DEVICE_TABLE(pci
, de_pci_tbl
);
351 static const char * const media_name
[DE_MAX_MEDIA
] = {
359 /* 21040 transceiver register settings:
360 * TP AUTO(unused), BNC(unused), AUI, TP, TP FD*/
361 static u16 t21040_csr13
[] = { 0, 0, 0x8F09, 0x8F01, 0x8F01, };
362 static u16 t21040_csr14
[] = { 0, 0, 0x0705, 0xFFFF, 0xFFFD, };
363 static u16 t21040_csr15
[] = { 0, 0, 0x0006, 0x0000, 0x0000, };
365 /* 21041 transceiver register settings: TP AUTO, BNC, AUI, TP, TP FD*/
366 static u16 t21041_csr13
[] = { 0xEF01, 0xEF09, 0xEF09, 0xEF01, 0xEF09, };
367 static u16 t21041_csr14
[] = { 0xFFFF, 0xF7FD, 0xF7FD, 0x6F3F, 0x6F3D, };
368 /* If on-chip autonegotiation is broken, use half-duplex (FF3F) instead */
369 static u16 t21041_csr14_brk
[] = { 0xFF3F, 0xF7FD, 0xF7FD, 0x6F3F, 0x6F3D, };
370 static u16 t21041_csr15
[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, };
373 #define dr32(reg) ioread32(de->regs + (reg))
374 #define dw32(reg, val) iowrite32((val), de->regs + (reg))
377 static void de_rx_err_acct (struct de_private
*de
, unsigned rx_tail
,
380 if (netif_msg_rx_err (de
))
382 "%s: rx err, slot %d status 0x%x len %d\n",
383 de
->dev
->name
, rx_tail
, status
, len
);
385 if ((status
& 0x38000300) != 0x0300) {
386 /* Ingore earlier buffers. */
387 if ((status
& 0xffff) != 0x7fff) {
388 if (netif_msg_rx_err(de
))
389 dev_warn(&de
->dev
->dev
,
390 "Oversized Ethernet frame spanned multiple buffers, status %08x!\n",
392 de
->net_stats
.rx_length_errors
++;
394 } else if (status
& RxError
) {
395 /* There was a fatal error. */
396 de
->net_stats
.rx_errors
++; /* end of a packet.*/
397 if (status
& 0x0890) de
->net_stats
.rx_length_errors
++;
398 if (status
& RxErrCRC
) de
->net_stats
.rx_crc_errors
++;
399 if (status
& RxErrFIFO
) de
->net_stats
.rx_fifo_errors
++;
403 static void de_rx (struct de_private
*de
)
405 unsigned rx_tail
= de
->rx_tail
;
406 unsigned rx_work
= DE_RX_RING_SIZE
;
413 struct sk_buff
*skb
, *copy_skb
;
414 unsigned copying_skb
, buflen
;
416 skb
= de
->rx_skb
[rx_tail
].skb
;
419 status
= le32_to_cpu(de
->rx_ring
[rx_tail
].opts1
);
420 if (status
& DescOwn
)
423 len
= ((status
>> 16) & 0x7ff) - 4;
424 mapping
= de
->rx_skb
[rx_tail
].mapping
;
426 if (unlikely(drop
)) {
427 de
->net_stats
.rx_dropped
++;
431 if (unlikely((status
& 0x38008300) != 0x0300)) {
432 de_rx_err_acct(de
, rx_tail
, status
, len
);
436 copying_skb
= (len
<= rx_copybreak
);
438 if (unlikely(netif_msg_rx_status(de
)))
439 printk(KERN_DEBUG
"%s: rx slot %d status 0x%x len %d copying? %d\n",
440 de
->dev
->name
, rx_tail
, status
, len
,
443 buflen
= copying_skb
? (len
+ RX_OFFSET
) : de
->rx_buf_sz
;
444 copy_skb
= dev_alloc_skb (buflen
);
445 if (unlikely(!copy_skb
)) {
446 de
->net_stats
.rx_dropped
++;
453 pci_unmap_single(de
->pdev
, mapping
,
454 buflen
, PCI_DMA_FROMDEVICE
);
458 de
->rx_skb
[rx_tail
].mapping
=
459 pci_map_single(de
->pdev
, copy_skb
->data
,
460 buflen
, PCI_DMA_FROMDEVICE
);
461 de
->rx_skb
[rx_tail
].skb
= copy_skb
;
463 pci_dma_sync_single_for_cpu(de
->pdev
, mapping
, len
, PCI_DMA_FROMDEVICE
);
464 skb_reserve(copy_skb
, RX_OFFSET
);
465 skb_copy_from_linear_data(skb
, skb_put(copy_skb
, len
),
467 pci_dma_sync_single_for_device(de
->pdev
, mapping
, len
, PCI_DMA_FROMDEVICE
);
469 /* We'll reuse the original ring buffer. */
473 skb
->protocol
= eth_type_trans (skb
, de
->dev
);
475 de
->net_stats
.rx_packets
++;
476 de
->net_stats
.rx_bytes
+= skb
->len
;
478 if (rc
== NET_RX_DROP
)
482 if (rx_tail
== (DE_RX_RING_SIZE
- 1))
483 de
->rx_ring
[rx_tail
].opts2
=
484 cpu_to_le32(RingEnd
| de
->rx_buf_sz
);
486 de
->rx_ring
[rx_tail
].opts2
= cpu_to_le32(de
->rx_buf_sz
);
487 de
->rx_ring
[rx_tail
].addr1
= cpu_to_le32(mapping
);
489 de
->rx_ring
[rx_tail
].opts1
= cpu_to_le32(DescOwn
);
490 rx_tail
= NEXT_RX(rx_tail
);
494 dev_warn(&de
->dev
->dev
, "rx work limit reached\n");
496 de
->rx_tail
= rx_tail
;
499 static irqreturn_t
de_interrupt (int irq
, void *dev_instance
)
501 struct net_device
*dev
= dev_instance
;
502 struct de_private
*de
= netdev_priv(dev
);
505 status
= dr32(MacStatus
);
506 if ((!(status
& (IntrOK
|IntrErr
))) || (status
== 0xFFFF))
509 if (netif_msg_intr(de
))
510 printk(KERN_DEBUG
"%s: intr, status %08x mode %08x desc %u/%u/%u\n",
511 dev
->name
, status
, dr32(MacMode
),
512 de
->rx_tail
, de
->tx_head
, de
->tx_tail
);
514 dw32(MacStatus
, status
);
516 if (status
& (RxIntr
| RxEmpty
)) {
518 if (status
& RxEmpty
)
519 dw32(RxPoll
, NormalRxPoll
);
522 spin_lock(&de
->lock
);
524 if (status
& (TxIntr
| TxEmpty
))
527 if (status
& (LinkPass
| LinkFail
))
528 de_media_interrupt(de
, status
);
530 spin_unlock(&de
->lock
);
532 if (status
& PciErr
) {
535 pci_read_config_word(de
->pdev
, PCI_STATUS
, &pci_status
);
536 pci_write_config_word(de
->pdev
, PCI_STATUS
, pci_status
);
537 dev_err(&de
->dev
->dev
,
538 "PCI bus error, status=%08x, PCI status=%04x\n",
545 static void de_tx (struct de_private
*de
)
547 unsigned tx_head
= de
->tx_head
;
548 unsigned tx_tail
= de
->tx_tail
;
550 while (tx_tail
!= tx_head
) {
555 status
= le32_to_cpu(de
->tx_ring
[tx_tail
].opts1
);
556 if (status
& DescOwn
)
559 skb
= de
->tx_skb
[tx_tail
].skb
;
561 if (unlikely(skb
== DE_DUMMY_SKB
))
564 if (unlikely(skb
== DE_SETUP_SKB
)) {
565 pci_unmap_single(de
->pdev
, de
->tx_skb
[tx_tail
].mapping
,
566 sizeof(de
->setup_frame
), PCI_DMA_TODEVICE
);
570 pci_unmap_single(de
->pdev
, de
->tx_skb
[tx_tail
].mapping
,
571 skb
->len
, PCI_DMA_TODEVICE
);
573 if (status
& LastFrag
) {
574 if (status
& TxError
) {
575 if (netif_msg_tx_err(de
))
576 printk(KERN_DEBUG
"%s: tx err, status 0x%x\n",
577 de
->dev
->name
, status
);
578 de
->net_stats
.tx_errors
++;
580 de
->net_stats
.tx_window_errors
++;
581 if (status
& TxMaxCol
)
582 de
->net_stats
.tx_aborted_errors
++;
583 if (status
& TxLinkFail
)
584 de
->net_stats
.tx_carrier_errors
++;
585 if (status
& TxFIFOUnder
)
586 de
->net_stats
.tx_fifo_errors
++;
588 de
->net_stats
.tx_packets
++;
589 de
->net_stats
.tx_bytes
+= skb
->len
;
590 if (netif_msg_tx_done(de
))
591 printk(KERN_DEBUG
"%s: tx done, slot %d\n",
592 de
->dev
->name
, tx_tail
);
594 dev_kfree_skb_irq(skb
);
598 de
->tx_skb
[tx_tail
].skb
= NULL
;
600 tx_tail
= NEXT_TX(tx_tail
);
603 de
->tx_tail
= tx_tail
;
605 if (netif_queue_stopped(de
->dev
) && (TX_BUFFS_AVAIL(de
) > (DE_TX_RING_SIZE
/ 4)))
606 netif_wake_queue(de
->dev
);
609 static netdev_tx_t
de_start_xmit (struct sk_buff
*skb
,
610 struct net_device
*dev
)
612 struct de_private
*de
= netdev_priv(dev
);
613 unsigned int entry
, tx_free
;
614 u32 mapping
, len
, flags
= FirstFrag
| LastFrag
;
617 spin_lock_irq(&de
->lock
);
619 tx_free
= TX_BUFFS_AVAIL(de
);
621 netif_stop_queue(dev
);
622 spin_unlock_irq(&de
->lock
);
623 return NETDEV_TX_BUSY
;
629 txd
= &de
->tx_ring
[entry
];
632 mapping
= pci_map_single(de
->pdev
, skb
->data
, len
, PCI_DMA_TODEVICE
);
633 if (entry
== (DE_TX_RING_SIZE
- 1))
635 if (!tx_free
|| (tx_free
== (DE_TX_RING_SIZE
/ 2)))
638 txd
->opts2
= cpu_to_le32(flags
);
639 txd
->addr1
= cpu_to_le32(mapping
);
641 de
->tx_skb
[entry
].skb
= skb
;
642 de
->tx_skb
[entry
].mapping
= mapping
;
645 txd
->opts1
= cpu_to_le32(DescOwn
);
648 de
->tx_head
= NEXT_TX(entry
);
649 if (netif_msg_tx_queued(de
))
650 printk(KERN_DEBUG
"%s: tx queued, slot %d, skblen %d\n",
651 dev
->name
, entry
, skb
->len
);
654 netif_stop_queue(dev
);
656 spin_unlock_irq(&de
->lock
);
658 /* Trigger an immediate transmit demand. */
659 dw32(TxPoll
, NormalTxPoll
);
664 /* Set or clear the multicast filter for this adaptor.
665 Note that we only use exclusion around actually queueing the
666 new frame, not around filling de->setup_frame. This is non-deterministic
667 when re-entered but still correct. */
670 #define set_bit_le(i,p) do { ((char *)(p))[(i)/8] |= (1<<((i)%8)); } while(0)
672 static void build_setup_frame_hash(u16
*setup_frm
, struct net_device
*dev
)
674 struct de_private
*de
= netdev_priv(dev
);
676 struct netdev_hw_addr
*ha
;
680 memset(hash_table
, 0, sizeof(hash_table
));
681 set_bit_le(255, hash_table
); /* Broadcast entry */
682 /* This should work on big-endian machines as well. */
683 netdev_for_each_mc_addr(ha
, dev
) {
684 int index
= ether_crc_le(ETH_ALEN
, ha
->addr
) & 0x1ff;
686 set_bit_le(index
, hash_table
);
689 for (i
= 0; i
< 32; i
++) {
690 *setup_frm
++ = hash_table
[i
];
691 *setup_frm
++ = hash_table
[i
];
693 setup_frm
= &de
->setup_frame
[13*6];
695 /* Fill the final entry with our physical address. */
696 eaddrs
= (u16
*)dev
->dev_addr
;
697 *setup_frm
++ = eaddrs
[0]; *setup_frm
++ = eaddrs
[0];
698 *setup_frm
++ = eaddrs
[1]; *setup_frm
++ = eaddrs
[1];
699 *setup_frm
++ = eaddrs
[2]; *setup_frm
++ = eaddrs
[2];
702 static void build_setup_frame_perfect(u16
*setup_frm
, struct net_device
*dev
)
704 struct de_private
*de
= netdev_priv(dev
);
705 struct netdev_hw_addr
*ha
;
708 /* We have <= 14 addresses so we can use the wonderful
709 16 address perfect filtering of the Tulip. */
710 netdev_for_each_mc_addr(ha
, dev
) {
711 eaddrs
= (u16
*) ha
->addr
;
712 *setup_frm
++ = *eaddrs
; *setup_frm
++ = *eaddrs
++;
713 *setup_frm
++ = *eaddrs
; *setup_frm
++ = *eaddrs
++;
714 *setup_frm
++ = *eaddrs
; *setup_frm
++ = *eaddrs
++;
716 /* Fill the unused entries with the broadcast address. */
717 memset(setup_frm
, 0xff, (15 - netdev_mc_count(dev
)) * 12);
718 setup_frm
= &de
->setup_frame
[15*6];
720 /* Fill the final entry with our physical address. */
721 eaddrs
= (u16
*)dev
->dev_addr
;
722 *setup_frm
++ = eaddrs
[0]; *setup_frm
++ = eaddrs
[0];
723 *setup_frm
++ = eaddrs
[1]; *setup_frm
++ = eaddrs
[1];
724 *setup_frm
++ = eaddrs
[2]; *setup_frm
++ = eaddrs
[2];
728 static void __de_set_rx_mode (struct net_device
*dev
)
730 struct de_private
*de
= netdev_priv(dev
);
735 struct de_desc
*dummy_txd
= NULL
;
737 macmode
= dr32(MacMode
) & ~(AcceptAllMulticast
| AcceptAllPhys
);
739 if (dev
->flags
& IFF_PROMISC
) { /* Set promiscuous. */
740 macmode
|= AcceptAllMulticast
| AcceptAllPhys
;
744 if ((netdev_mc_count(dev
) > 1000) || (dev
->flags
& IFF_ALLMULTI
)) {
745 /* Too many to filter well -- accept all multicasts. */
746 macmode
|= AcceptAllMulticast
;
750 /* Note that only the low-address shortword of setup_frame is valid!
751 The values are doubled for big-endian architectures. */
752 if (netdev_mc_count(dev
) > 14) /* Must use a multicast hash table. */
753 build_setup_frame_hash (de
->setup_frame
, dev
);
755 build_setup_frame_perfect (de
->setup_frame
, dev
);
758 * Now add this frame to the Tx list.
763 /* Avoid a chip errata by prefixing a dummy entry. */
765 de
->tx_skb
[entry
].skb
= DE_DUMMY_SKB
;
767 dummy_txd
= &de
->tx_ring
[entry
];
768 dummy_txd
->opts2
= (entry
== (DE_TX_RING_SIZE
- 1)) ?
769 cpu_to_le32(RingEnd
) : 0;
770 dummy_txd
->addr1
= 0;
772 /* Must set DescOwned later to avoid race with chip */
774 entry
= NEXT_TX(entry
);
777 de
->tx_skb
[entry
].skb
= DE_SETUP_SKB
;
778 de
->tx_skb
[entry
].mapping
= mapping
=
779 pci_map_single (de
->pdev
, de
->setup_frame
,
780 sizeof (de
->setup_frame
), PCI_DMA_TODEVICE
);
782 /* Put the setup frame on the Tx list. */
783 txd
= &de
->tx_ring
[entry
];
784 if (entry
== (DE_TX_RING_SIZE
- 1))
785 txd
->opts2
= cpu_to_le32(SetupFrame
| RingEnd
| sizeof (de
->setup_frame
));
787 txd
->opts2
= cpu_to_le32(SetupFrame
| sizeof (de
->setup_frame
));
788 txd
->addr1
= cpu_to_le32(mapping
);
791 txd
->opts1
= cpu_to_le32(DescOwn
);
795 dummy_txd
->opts1
= cpu_to_le32(DescOwn
);
799 de
->tx_head
= NEXT_TX(entry
);
801 if (TX_BUFFS_AVAIL(de
) == 0)
802 netif_stop_queue(dev
);
804 /* Trigger an immediate transmit demand. */
805 dw32(TxPoll
, NormalTxPoll
);
808 if (macmode
!= dr32(MacMode
))
809 dw32(MacMode
, macmode
);
812 static void de_set_rx_mode (struct net_device
*dev
)
815 struct de_private
*de
= netdev_priv(dev
);
817 spin_lock_irqsave (&de
->lock
, flags
);
818 __de_set_rx_mode(dev
);
819 spin_unlock_irqrestore (&de
->lock
, flags
);
822 static inline void de_rx_missed(struct de_private
*de
, u32 rx_missed
)
824 if (unlikely(rx_missed
& RxMissedOver
))
825 de
->net_stats
.rx_missed_errors
+= RxMissedMask
;
827 de
->net_stats
.rx_missed_errors
+= (rx_missed
& RxMissedMask
);
830 static void __de_get_stats(struct de_private
*de
)
832 u32 tmp
= dr32(RxMissed
); /* self-clearing */
834 de_rx_missed(de
, tmp
);
837 static struct net_device_stats
*de_get_stats(struct net_device
*dev
)
839 struct de_private
*de
= netdev_priv(dev
);
841 /* The chip only need report frame silently dropped. */
842 spin_lock_irq(&de
->lock
);
843 if (netif_running(dev
) && netif_device_present(dev
))
845 spin_unlock_irq(&de
->lock
);
847 return &de
->net_stats
;
850 static inline int de_is_running (struct de_private
*de
)
852 return (dr32(MacStatus
) & (RxState
| TxState
)) ? 1 : 0;
855 static void de_stop_rxtx (struct de_private
*de
)
858 unsigned int i
= 1300/100;
860 macmode
= dr32(MacMode
);
861 if (macmode
& RxTx
) {
862 dw32(MacMode
, macmode
& ~RxTx
);
866 /* wait until in-flight frame completes.
867 * Max time @ 10BT: 1500*8b/10Mbps == 1200us (+ 100us margin)
868 * Typically expect this loop to end in < 50 us on 100BT.
871 if (!de_is_running(de
))
876 dev_warn(&de
->dev
->dev
, "timeout expired stopping DMA\n");
879 static inline void de_start_rxtx (struct de_private
*de
)
883 macmode
= dr32(MacMode
);
884 if ((macmode
& RxTx
) != RxTx
) {
885 dw32(MacMode
, macmode
| RxTx
);
890 static void de_stop_hw (struct de_private
*de
)
898 dw32(MacStatus
, dr32(MacStatus
));
903 de
->tx_head
= de
->tx_tail
= 0;
906 static void de_link_up(struct de_private
*de
)
908 if (!netif_carrier_ok(de
->dev
)) {
909 netif_carrier_on(de
->dev
);
910 if (netif_msg_link(de
))
911 dev_info(&de
->dev
->dev
, "link up, media %s\n",
912 media_name
[de
->media_type
]);
916 static void de_link_down(struct de_private
*de
)
918 if (netif_carrier_ok(de
->dev
)) {
919 netif_carrier_off(de
->dev
);
920 if (netif_msg_link(de
))
921 dev_info(&de
->dev
->dev
, "link down\n");
925 static void de_set_media (struct de_private
*de
)
927 unsigned media
= de
->media_type
;
928 u32 macmode
= dr32(MacMode
);
930 if (de_is_running(de
))
931 dev_warn(&de
->dev
->dev
,
932 "chip is running while changing media!\n");
935 dw32(CSR11
, FULL_DUPLEX_MAGIC
);
936 dw32(CSR13
, 0); /* Reset phy */
937 dw32(CSR14
, de
->media
[media
].csr14
);
938 dw32(CSR15
, de
->media
[media
].csr15
);
939 dw32(CSR13
, de
->media
[media
].csr13
);
941 /* must delay 10ms before writing to other registers,
946 if (media
== DE_MEDIA_TP_FD
)
947 macmode
|= FullDuplex
;
949 macmode
&= ~FullDuplex
;
951 if (netif_msg_link(de
)) {
952 dev_info(&de
->dev
->dev
, "set link %s\n", media_name
[media
]);
953 dev_info(&de
->dev
->dev
, "mode 0x%x, sia 0x%x,0x%x,0x%x,0x%x\n",
954 dr32(MacMode
), dr32(SIAStatus
),
955 dr32(CSR13
), dr32(CSR14
), dr32(CSR15
));
957 dev_info(&de
->dev
->dev
,
958 "set mode 0x%x, set sia 0x%x,0x%x,0x%x\n",
959 macmode
, de
->media
[media
].csr13
,
960 de
->media
[media
].csr14
, de
->media
[media
].csr15
);
962 if (macmode
!= dr32(MacMode
))
963 dw32(MacMode
, macmode
);
966 static void de_next_media (struct de_private
*de
, u32
*media
,
967 unsigned int n_media
)
971 for (i
= 0; i
< n_media
; i
++) {
972 if (de_ok_to_advertise(de
, media
[i
])) {
973 de
->media_type
= media
[i
];
979 static void de21040_media_timer (unsigned long data
)
981 struct de_private
*de
= (struct de_private
*) data
;
982 struct net_device
*dev
= de
->dev
;
983 u32 status
= dr32(SIAStatus
);
984 unsigned int carrier
;
987 carrier
= (status
& NetCxnErr
) ? 0 : 1;
990 if (de
->media_type
!= DE_MEDIA_AUI
&& (status
& LinkFailStatus
))
993 de
->media_timer
.expires
= jiffies
+ DE_TIMER_LINK
;
994 add_timer(&de
->media_timer
);
995 if (!netif_carrier_ok(dev
))
998 if (netif_msg_timer(de
))
999 dev_info(&dev
->dev
, "%s link ok, status %x\n",
1000 media_name
[de
->media_type
], status
);
1009 if (de
->media_type
== DE_MEDIA_AUI
) {
1010 u32 next_state
= DE_MEDIA_TP
;
1011 de_next_media(de
, &next_state
, 1);
1013 u32 next_state
= DE_MEDIA_AUI
;
1014 de_next_media(de
, &next_state
, 1);
1017 spin_lock_irqsave(&de
->lock
, flags
);
1019 spin_unlock_irqrestore(&de
->lock
, flags
);
1024 de
->media_timer
.expires
= jiffies
+ DE_TIMER_NO_LINK
;
1025 add_timer(&de
->media_timer
);
1027 if (netif_msg_timer(de
))
1028 dev_info(&dev
->dev
, "no link, trying media %s, status %x\n",
1029 media_name
[de
->media_type
], status
);
1032 static unsigned int de_ok_to_advertise (struct de_private
*de
, u32 new_media
)
1034 switch (new_media
) {
1035 case DE_MEDIA_TP_AUTO
:
1036 if (!(de
->media_advertise
& ADVERTISED_Autoneg
))
1038 if (!(de
->media_advertise
& (ADVERTISED_10baseT_Half
| ADVERTISED_10baseT_Full
)))
1042 if (!(de
->media_advertise
& ADVERTISED_BNC
))
1046 if (!(de
->media_advertise
& ADVERTISED_AUI
))
1050 if (!(de
->media_advertise
& ADVERTISED_10baseT_Half
))
1053 case DE_MEDIA_TP_FD
:
1054 if (!(de
->media_advertise
& ADVERTISED_10baseT_Full
))
1062 static void de21041_media_timer (unsigned long data
)
1064 struct de_private
*de
= (struct de_private
*) data
;
1065 struct net_device
*dev
= de
->dev
;
1066 u32 status
= dr32(SIAStatus
);
1067 unsigned int carrier
;
1068 unsigned long flags
;
1070 /* clear port active bits */
1071 dw32(SIAStatus
, NonselPortActive
| SelPortActive
);
1073 carrier
= (status
& NetCxnErr
) ? 0 : 1;
1076 if ((de
->media_type
== DE_MEDIA_TP_AUTO
||
1077 de
->media_type
== DE_MEDIA_TP
||
1078 de
->media_type
== DE_MEDIA_TP_FD
) &&
1079 (status
& LinkFailStatus
))
1082 de
->media_timer
.expires
= jiffies
+ DE_TIMER_LINK
;
1083 add_timer(&de
->media_timer
);
1084 if (!netif_carrier_ok(dev
))
1087 if (netif_msg_timer(de
))
1089 "%s link ok, mode %x status %x\n",
1090 media_name
[de
->media_type
],
1091 dr32(MacMode
), status
);
1097 /* if media type locked, don't switch media */
1101 /* if activity detected, use that as hint for new media type */
1102 if (status
& NonselPortActive
) {
1103 unsigned int have_media
= 1;
1105 /* if AUI/BNC selected, then activity is on TP port */
1106 if (de
->media_type
== DE_MEDIA_AUI
||
1107 de
->media_type
== DE_MEDIA_BNC
) {
1108 if (de_ok_to_advertise(de
, DE_MEDIA_TP_AUTO
))
1109 de
->media_type
= DE_MEDIA_TP_AUTO
;
1114 /* TP selected. If there is only TP and BNC, then it's BNC */
1115 else if (((de
->media_supported
& DE_AUI_BNC
) == SUPPORTED_BNC
) &&
1116 de_ok_to_advertise(de
, DE_MEDIA_BNC
))
1117 de
->media_type
= DE_MEDIA_BNC
;
1119 /* TP selected. If there is only TP and AUI, then it's AUI */
1120 else if (((de
->media_supported
& DE_AUI_BNC
) == SUPPORTED_AUI
) &&
1121 de_ok_to_advertise(de
, DE_MEDIA_AUI
))
1122 de
->media_type
= DE_MEDIA_AUI
;
1124 /* otherwise, ignore the hint */
1133 * Absent or ambiguous activity hint, move to next advertised
1134 * media state. If de->media_type is left unchanged, this
1135 * simply resets the PHY and reloads the current media settings.
1137 if (de
->media_type
== DE_MEDIA_AUI
) {
1138 u32 next_states
[] = { DE_MEDIA_BNC
, DE_MEDIA_TP_AUTO
};
1139 de_next_media(de
, next_states
, ARRAY_SIZE(next_states
));
1140 } else if (de
->media_type
== DE_MEDIA_BNC
) {
1141 u32 next_states
[] = { DE_MEDIA_TP_AUTO
, DE_MEDIA_AUI
};
1142 de_next_media(de
, next_states
, ARRAY_SIZE(next_states
));
1144 u32 next_states
[] = { DE_MEDIA_AUI
, DE_MEDIA_BNC
, DE_MEDIA_TP_AUTO
};
1145 de_next_media(de
, next_states
, ARRAY_SIZE(next_states
));
1149 spin_lock_irqsave(&de
->lock
, flags
);
1151 spin_unlock_irqrestore(&de
->lock
, flags
);
1156 de
->media_timer
.expires
= jiffies
+ DE_TIMER_NO_LINK
;
1157 add_timer(&de
->media_timer
);
1159 if (netif_msg_timer(de
))
1160 dev_info(&dev
->dev
, "no link, trying media %s, status %x\n",
1161 media_name
[de
->media_type
], status
);
1164 static void de_media_interrupt (struct de_private
*de
, u32 status
)
1166 if (status
& LinkPass
) {
1167 /* Ignore if current media is AUI or BNC and we can't use TP */
1168 if ((de
->media_type
== DE_MEDIA_AUI
||
1169 de
->media_type
== DE_MEDIA_BNC
) &&
1171 !de_ok_to_advertise(de
, DE_MEDIA_TP_AUTO
)))
1173 /* If current media is not TP, change it to TP */
1174 if ((de
->media_type
== DE_MEDIA_AUI
||
1175 de
->media_type
== DE_MEDIA_BNC
)) {
1176 de
->media_type
= DE_MEDIA_TP_AUTO
;
1182 mod_timer(&de
->media_timer
, jiffies
+ DE_TIMER_LINK
);
1186 BUG_ON(!(status
& LinkFail
));
1187 /* Mark the link as down only if current media is TP */
1188 if (netif_carrier_ok(de
->dev
) && de
->media_type
!= DE_MEDIA_AUI
&&
1189 de
->media_type
!= DE_MEDIA_BNC
) {
1191 mod_timer(&de
->media_timer
, jiffies
+ DE_TIMER_NO_LINK
);
1195 static int de_reset_mac (struct de_private
*de
)
1200 * Reset MAC. de4x5.c and tulip.c examined for "advice"
1204 if (dr32(BusMode
) == 0xffffffff)
1207 /* Reset the chip, holding bit 0 set at least 50 PCI cycles. */
1208 dw32 (BusMode
, CmdReset
);
1211 dw32 (BusMode
, de_bus_mode
);
1214 for (tmp
= 0; tmp
< 5; tmp
++) {
1221 status
= dr32(MacStatus
);
1222 if (status
& (RxState
| TxState
))
1224 if (status
== 0xffffffff)
1229 static void de_adapter_wake (struct de_private
*de
)
1236 pci_read_config_dword(de
->pdev
, PCIPM
, &pmctl
);
1237 if (pmctl
& PM_Mask
) {
1239 pci_write_config_dword(de
->pdev
, PCIPM
, pmctl
);
1241 /* de4x5.c delays, so we do too */
1246 static void de_adapter_sleep (struct de_private
*de
)
1253 dw32(CSR13
, 0); /* Reset phy */
1254 pci_read_config_dword(de
->pdev
, PCIPM
, &pmctl
);
1256 pci_write_config_dword(de
->pdev
, PCIPM
, pmctl
);
1259 static int de_init_hw (struct de_private
*de
)
1261 struct net_device
*dev
= de
->dev
;
1265 de_adapter_wake(de
);
1267 macmode
= dr32(MacMode
) & ~MacModeClear
;
1269 rc
= de_reset_mac(de
);
1273 de_set_media(de
); /* reset phy */
1275 dw32(RxRingAddr
, de
->ring_dma
);
1276 dw32(TxRingAddr
, de
->ring_dma
+ (sizeof(struct de_desc
) * DE_RX_RING_SIZE
));
1278 dw32(MacMode
, RxTx
| macmode
);
1280 dr32(RxMissed
); /* self-clearing */
1282 dw32(IntrMask
, de_intr_mask
);
1284 de_set_rx_mode(dev
);
1289 static int de_refill_rx (struct de_private
*de
)
1293 for (i
= 0; i
< DE_RX_RING_SIZE
; i
++) {
1294 struct sk_buff
*skb
;
1296 skb
= dev_alloc_skb(de
->rx_buf_sz
);
1302 de
->rx_skb
[i
].mapping
= pci_map_single(de
->pdev
,
1303 skb
->data
, de
->rx_buf_sz
, PCI_DMA_FROMDEVICE
);
1304 de
->rx_skb
[i
].skb
= skb
;
1306 de
->rx_ring
[i
].opts1
= cpu_to_le32(DescOwn
);
1307 if (i
== (DE_RX_RING_SIZE
- 1))
1308 de
->rx_ring
[i
].opts2
=
1309 cpu_to_le32(RingEnd
| de
->rx_buf_sz
);
1311 de
->rx_ring
[i
].opts2
= cpu_to_le32(de
->rx_buf_sz
);
1312 de
->rx_ring
[i
].addr1
= cpu_to_le32(de
->rx_skb
[i
].mapping
);
1313 de
->rx_ring
[i
].addr2
= 0;
1323 static int de_init_rings (struct de_private
*de
)
1325 memset(de
->tx_ring
, 0, sizeof(struct de_desc
) * DE_TX_RING_SIZE
);
1326 de
->tx_ring
[DE_TX_RING_SIZE
- 1].opts2
= cpu_to_le32(RingEnd
);
1329 de
->tx_head
= de
->tx_tail
= 0;
1331 return de_refill_rx (de
);
1334 static int de_alloc_rings (struct de_private
*de
)
1336 de
->rx_ring
= pci_alloc_consistent(de
->pdev
, DE_RING_BYTES
, &de
->ring_dma
);
1339 de
->tx_ring
= &de
->rx_ring
[DE_RX_RING_SIZE
];
1340 return de_init_rings(de
);
1343 static void de_clean_rings (struct de_private
*de
)
1347 memset(de
->rx_ring
, 0, sizeof(struct de_desc
) * DE_RX_RING_SIZE
);
1348 de
->rx_ring
[DE_RX_RING_SIZE
- 1].opts2
= cpu_to_le32(RingEnd
);
1350 memset(de
->tx_ring
, 0, sizeof(struct de_desc
) * DE_TX_RING_SIZE
);
1351 de
->tx_ring
[DE_TX_RING_SIZE
- 1].opts2
= cpu_to_le32(RingEnd
);
1354 for (i
= 0; i
< DE_RX_RING_SIZE
; i
++) {
1355 if (de
->rx_skb
[i
].skb
) {
1356 pci_unmap_single(de
->pdev
, de
->rx_skb
[i
].mapping
,
1357 de
->rx_buf_sz
, PCI_DMA_FROMDEVICE
);
1358 dev_kfree_skb(de
->rx_skb
[i
].skb
);
1362 for (i
= 0; i
< DE_TX_RING_SIZE
; i
++) {
1363 struct sk_buff
*skb
= de
->tx_skb
[i
].skb
;
1364 if ((skb
) && (skb
!= DE_DUMMY_SKB
)) {
1365 if (skb
!= DE_SETUP_SKB
) {
1366 de
->net_stats
.tx_dropped
++;
1367 pci_unmap_single(de
->pdev
,
1368 de
->tx_skb
[i
].mapping
,
1369 skb
->len
, PCI_DMA_TODEVICE
);
1372 pci_unmap_single(de
->pdev
,
1373 de
->tx_skb
[i
].mapping
,
1374 sizeof(de
->setup_frame
),
1380 memset(&de
->rx_skb
, 0, sizeof(struct ring_info
) * DE_RX_RING_SIZE
);
1381 memset(&de
->tx_skb
, 0, sizeof(struct ring_info
) * DE_TX_RING_SIZE
);
1384 static void de_free_rings (struct de_private
*de
)
1387 pci_free_consistent(de
->pdev
, DE_RING_BYTES
, de
->rx_ring
, de
->ring_dma
);
1392 static int de_open (struct net_device
*dev
)
1394 struct de_private
*de
= netdev_priv(dev
);
1397 if (netif_msg_ifup(de
))
1398 printk(KERN_DEBUG
"%s: enabling interface\n", dev
->name
);
1400 de
->rx_buf_sz
= (dev
->mtu
<= 1500 ? PKT_BUF_SZ
: dev
->mtu
+ 32);
1402 rc
= de_alloc_rings(de
);
1404 dev_err(&dev
->dev
, "ring allocation failure, err=%d\n", rc
);
1410 rc
= request_irq(dev
->irq
, de_interrupt
, IRQF_SHARED
, dev
->name
, dev
);
1412 dev_err(&dev
->dev
, "IRQ %d request failure, err=%d\n",
1417 rc
= de_init_hw(de
);
1419 dev_err(&dev
->dev
, "h/w init failure, err=%d\n", rc
);
1420 goto err_out_free_irq
;
1423 netif_start_queue(dev
);
1424 mod_timer(&de
->media_timer
, jiffies
+ DE_TIMER_NO_LINK
);
1429 free_irq(dev
->irq
, dev
);
1435 static int de_close (struct net_device
*dev
)
1437 struct de_private
*de
= netdev_priv(dev
);
1438 unsigned long flags
;
1440 if (netif_msg_ifdown(de
))
1441 printk(KERN_DEBUG
"%s: disabling interface\n", dev
->name
);
1443 del_timer_sync(&de
->media_timer
);
1445 spin_lock_irqsave(&de
->lock
, flags
);
1447 netif_stop_queue(dev
);
1448 netif_carrier_off(dev
);
1449 spin_unlock_irqrestore(&de
->lock
, flags
);
1451 free_irq(dev
->irq
, dev
);
1454 de_adapter_sleep(de
);
1458 static void de_tx_timeout (struct net_device
*dev
)
1460 struct de_private
*de
= netdev_priv(dev
);
1462 printk(KERN_DEBUG
"%s: NIC status %08x mode %08x sia %08x desc %u/%u/%u\n",
1463 dev
->name
, dr32(MacStatus
), dr32(MacMode
), dr32(SIAStatus
),
1464 de
->rx_tail
, de
->tx_head
, de
->tx_tail
);
1466 del_timer_sync(&de
->media_timer
);
1468 disable_irq(dev
->irq
);
1469 spin_lock_irq(&de
->lock
);
1472 netif_stop_queue(dev
);
1473 netif_carrier_off(dev
);
1475 spin_unlock_irq(&de
->lock
);
1476 enable_irq(dev
->irq
);
1478 /* Update the error counts. */
1481 synchronize_irq(dev
->irq
);
1488 netif_wake_queue(dev
);
1491 static void __de_get_regs(struct de_private
*de
, u8
*buf
)
1494 u32
*rbuf
= (u32
*)buf
;
1497 for (i
= 0; i
< DE_NUM_REGS
; i
++)
1498 rbuf
[i
] = dr32(i
* 8);
1500 /* handle self-clearing RxMissed counter, CSR8 */
1501 de_rx_missed(de
, rbuf
[8]);
1504 static int __de_get_settings(struct de_private
*de
, struct ethtool_cmd
*ecmd
)
1506 ecmd
->supported
= de
->media_supported
;
1507 ecmd
->transceiver
= XCVR_INTERNAL
;
1508 ecmd
->phy_address
= 0;
1509 ecmd
->advertising
= de
->media_advertise
;
1511 switch (de
->media_type
) {
1513 ecmd
->port
= PORT_AUI
;
1517 ecmd
->port
= PORT_BNC
;
1521 ecmd
->port
= PORT_TP
;
1522 ecmd
->speed
= SPEED_10
;
1526 if (dr32(MacMode
) & FullDuplex
)
1527 ecmd
->duplex
= DUPLEX_FULL
;
1529 ecmd
->duplex
= DUPLEX_HALF
;
1532 ecmd
->autoneg
= AUTONEG_DISABLE
;
1534 ecmd
->autoneg
= AUTONEG_ENABLE
;
1536 /* ignore maxtxpkt, maxrxpkt for now */
1541 static int __de_set_settings(struct de_private
*de
, struct ethtool_cmd
*ecmd
)
1544 unsigned int media_lock
;
1546 if (ecmd
->speed
!= SPEED_10
&& ecmd
->speed
!= 5 && ecmd
->speed
!= 2)
1548 if (de
->de21040
&& ecmd
->speed
== 2)
1550 if (ecmd
->duplex
!= DUPLEX_HALF
&& ecmd
->duplex
!= DUPLEX_FULL
)
1552 if (ecmd
->port
!= PORT_TP
&& ecmd
->port
!= PORT_AUI
&& ecmd
->port
!= PORT_BNC
)
1554 if (de
->de21040
&& ecmd
->port
== PORT_BNC
)
1556 if (ecmd
->transceiver
!= XCVR_INTERNAL
)
1558 if (ecmd
->autoneg
!= AUTONEG_DISABLE
&& ecmd
->autoneg
!= AUTONEG_ENABLE
)
1560 if (ecmd
->advertising
& ~de
->media_supported
)
1562 if (ecmd
->autoneg
== AUTONEG_ENABLE
&&
1563 (!(ecmd
->advertising
& ADVERTISED_Autoneg
)))
1566 switch (ecmd
->port
) {
1568 new_media
= DE_MEDIA_AUI
;
1569 if (!(ecmd
->advertising
& ADVERTISED_AUI
))
1573 new_media
= DE_MEDIA_BNC
;
1574 if (!(ecmd
->advertising
& ADVERTISED_BNC
))
1578 if (ecmd
->autoneg
== AUTONEG_ENABLE
)
1579 new_media
= DE_MEDIA_TP_AUTO
;
1580 else if (ecmd
->duplex
== DUPLEX_FULL
)
1581 new_media
= DE_MEDIA_TP_FD
;
1583 new_media
= DE_MEDIA_TP
;
1584 if (!(ecmd
->advertising
& ADVERTISED_TP
))
1586 if (!(ecmd
->advertising
& (ADVERTISED_10baseT_Full
| ADVERTISED_10baseT_Half
)))
1591 media_lock
= (ecmd
->autoneg
== AUTONEG_ENABLE
) ? 0 : 1;
1593 if ((new_media
== de
->media_type
) &&
1594 (media_lock
== de
->media_lock
) &&
1595 (ecmd
->advertising
== de
->media_advertise
))
1596 return 0; /* nothing to change */
1601 de
->media_type
= new_media
;
1602 de
->media_lock
= media_lock
;
1603 de
->media_advertise
= ecmd
->advertising
;
1609 static void de_get_drvinfo (struct net_device
*dev
,struct ethtool_drvinfo
*info
)
1611 struct de_private
*de
= netdev_priv(dev
);
1613 strcpy (info
->driver
, DRV_NAME
);
1614 strcpy (info
->version
, DRV_VERSION
);
1615 strcpy (info
->bus_info
, pci_name(de
->pdev
));
1616 info
->eedump_len
= DE_EEPROM_SIZE
;
1619 static int de_get_regs_len(struct net_device
*dev
)
1621 return DE_REGS_SIZE
;
1624 static int de_get_settings(struct net_device
*dev
, struct ethtool_cmd
*ecmd
)
1626 struct de_private
*de
= netdev_priv(dev
);
1629 spin_lock_irq(&de
->lock
);
1630 rc
= __de_get_settings(de
, ecmd
);
1631 spin_unlock_irq(&de
->lock
);
1636 static int de_set_settings(struct net_device
*dev
, struct ethtool_cmd
*ecmd
)
1638 struct de_private
*de
= netdev_priv(dev
);
1641 spin_lock_irq(&de
->lock
);
1642 rc
= __de_set_settings(de
, ecmd
);
1643 spin_unlock_irq(&de
->lock
);
1648 static u32
de_get_msglevel(struct net_device
*dev
)
1650 struct de_private
*de
= netdev_priv(dev
);
1652 return de
->msg_enable
;
1655 static void de_set_msglevel(struct net_device
*dev
, u32 msglvl
)
1657 struct de_private
*de
= netdev_priv(dev
);
1659 de
->msg_enable
= msglvl
;
1662 static int de_get_eeprom(struct net_device
*dev
,
1663 struct ethtool_eeprom
*eeprom
, u8
*data
)
1665 struct de_private
*de
= netdev_priv(dev
);
1669 if ((eeprom
->offset
!= 0) || (eeprom
->magic
!= 0) ||
1670 (eeprom
->len
!= DE_EEPROM_SIZE
))
1672 memcpy(data
, de
->ee_data
, eeprom
->len
);
1677 static int de_nway_reset(struct net_device
*dev
)
1679 struct de_private
*de
= netdev_priv(dev
);
1682 if (de
->media_type
!= DE_MEDIA_TP_AUTO
)
1684 if (netif_carrier_ok(de
->dev
))
1687 status
= dr32(SIAStatus
);
1688 dw32(SIAStatus
, (status
& ~NWayState
) | NWayRestart
);
1689 if (netif_msg_link(de
))
1690 dev_info(&de
->dev
->dev
, "link nway restart, status %x,%x\n",
1691 status
, dr32(SIAStatus
));
1695 static void de_get_regs(struct net_device
*dev
, struct ethtool_regs
*regs
,
1698 struct de_private
*de
= netdev_priv(dev
);
1700 regs
->version
= (DE_REGS_VER
<< 2) | de
->de21040
;
1702 spin_lock_irq(&de
->lock
);
1703 __de_get_regs(de
, data
);
1704 spin_unlock_irq(&de
->lock
);
1707 static const struct ethtool_ops de_ethtool_ops
= {
1708 .get_link
= ethtool_op_get_link
,
1709 .get_drvinfo
= de_get_drvinfo
,
1710 .get_regs_len
= de_get_regs_len
,
1711 .get_settings
= de_get_settings
,
1712 .set_settings
= de_set_settings
,
1713 .get_msglevel
= de_get_msglevel
,
1714 .set_msglevel
= de_set_msglevel
,
1715 .get_eeprom
= de_get_eeprom
,
1716 .nway_reset
= de_nway_reset
,
1717 .get_regs
= de_get_regs
,
1720 static void __devinit
de21040_get_mac_address (struct de_private
*de
)
1724 dw32 (ROMCmd
, 0); /* Reset the pointer with a dummy write. */
1727 for (i
= 0; i
< 6; i
++) {
1728 int value
, boguscnt
= 100000;
1730 value
= dr32(ROMCmd
);
1732 } while (value
< 0 && --boguscnt
> 0);
1733 de
->dev
->dev_addr
[i
] = value
;
1736 pr_warning(PFX
"timeout reading 21040 MAC address byte %u\n", i
);
1740 static void __devinit
de21040_get_media_info(struct de_private
*de
)
1744 de
->media_type
= DE_MEDIA_TP
;
1745 de
->media_supported
|= SUPPORTED_TP
| SUPPORTED_10baseT_Full
|
1746 SUPPORTED_10baseT_Half
| SUPPORTED_AUI
;
1747 de
->media_advertise
= de
->media_supported
;
1749 for (i
= 0; i
< DE_MAX_MEDIA
; i
++) {
1753 case DE_MEDIA_TP_FD
:
1754 de
->media
[i
].type
= i
;
1755 de
->media
[i
].csr13
= t21040_csr13
[i
];
1756 de
->media
[i
].csr14
= t21040_csr14
[i
];
1757 de
->media
[i
].csr15
= t21040_csr15
[i
];
1760 de
->media
[i
].type
= DE_MEDIA_INVALID
;
1766 /* Note: this routine returns extra data bits for size detection. */
1767 static unsigned __devinit
tulip_read_eeprom(void __iomem
*regs
, int location
, int addr_len
)
1770 unsigned retval
= 0;
1771 void __iomem
*ee_addr
= regs
+ ROMCmd
;
1772 int read_cmd
= location
| (EE_READ_CMD
<< addr_len
);
1774 writel(EE_ENB
& ~EE_CS
, ee_addr
);
1775 writel(EE_ENB
, ee_addr
);
1777 /* Shift the read command bits out. */
1778 for (i
= 4 + addr_len
; i
>= 0; i
--) {
1779 short dataval
= (read_cmd
& (1 << i
)) ? EE_DATA_WRITE
: 0;
1780 writel(EE_ENB
| dataval
, ee_addr
);
1782 writel(EE_ENB
| dataval
| EE_SHIFT_CLK
, ee_addr
);
1784 retval
= (retval
<< 1) | ((readl(ee_addr
) & EE_DATA_READ
) ? 1 : 0);
1786 writel(EE_ENB
, ee_addr
);
1789 for (i
= 16; i
> 0; i
--) {
1790 writel(EE_ENB
| EE_SHIFT_CLK
, ee_addr
);
1792 retval
= (retval
<< 1) | ((readl(ee_addr
) & EE_DATA_READ
) ? 1 : 0);
1793 writel(EE_ENB
, ee_addr
);
1797 /* Terminate the EEPROM access. */
1798 writel(EE_ENB
& ~EE_CS
, ee_addr
);
1802 static void __devinit
de21041_get_srom_info (struct de_private
*de
)
1804 unsigned i
, sa_offset
= 0, ofs
;
1805 u8 ee_data
[DE_EEPROM_SIZE
+ 6] = {};
1806 unsigned ee_addr_size
= tulip_read_eeprom(de
->regs
, 0xff, 8) & 0x40000 ? 8 : 6;
1807 struct de_srom_info_leaf
*il
;
1810 /* download entire eeprom */
1811 for (i
= 0; i
< DE_EEPROM_WORDS
; i
++)
1812 ((__le16
*)ee_data
)[i
] =
1813 cpu_to_le16(tulip_read_eeprom(de
->regs
, i
, ee_addr_size
));
1815 /* DEC now has a specification but early board makers
1816 just put the address in the first EEPROM locations. */
1817 /* This does memcmp(eedata, eedata+16, 8) */
1819 #ifndef CONFIG_MIPS_COBALT
1821 for (i
= 0; i
< 8; i
++)
1822 if (ee_data
[i
] != ee_data
[16+i
])
1827 /* store MAC address */
1828 for (i
= 0; i
< 6; i
++)
1829 de
->dev
->dev_addr
[i
] = ee_data
[i
+ sa_offset
];
1831 /* get offset of controller 0 info leaf. ignore 2nd byte. */
1832 ofs
= ee_data
[SROMC0InfoLeaf
];
1833 if (ofs
>= (sizeof(ee_data
) - sizeof(struct de_srom_info_leaf
) - sizeof(struct de_srom_media_block
)))
1836 /* get pointer to info leaf */
1837 il
= (struct de_srom_info_leaf
*) &ee_data
[ofs
];
1839 /* paranoia checks */
1840 if (il
->n_blocks
== 0)
1842 if ((sizeof(ee_data
) - ofs
) <
1843 (sizeof(struct de_srom_info_leaf
) + (sizeof(struct de_srom_media_block
) * il
->n_blocks
)))
1846 /* get default media type */
1847 switch (get_unaligned(&il
->default_media
)) {
1848 case 0x0001: de
->media_type
= DE_MEDIA_BNC
; break;
1849 case 0x0002: de
->media_type
= DE_MEDIA_AUI
; break;
1850 case 0x0204: de
->media_type
= DE_MEDIA_TP_FD
; break;
1851 default: de
->media_type
= DE_MEDIA_TP_AUTO
; break;
1854 if (netif_msg_probe(de
))
1855 pr_info("de%d: SROM leaf offset %u, default media %s\n",
1856 de
->board_idx
, ofs
, media_name
[de
->media_type
]);
1858 /* init SIA register values to defaults */
1859 for (i
= 0; i
< DE_MAX_MEDIA
; i
++) {
1860 de
->media
[i
].type
= DE_MEDIA_INVALID
;
1861 de
->media
[i
].csr13
= 0xffff;
1862 de
->media
[i
].csr14
= 0xffff;
1863 de
->media
[i
].csr15
= 0xffff;
1866 /* parse media blocks to see what medias are supported,
1867 * and if any custom CSR values are provided
1869 bufp
= ((void *)il
) + sizeof(*il
);
1870 for (i
= 0; i
< il
->n_blocks
; i
++) {
1871 struct de_srom_media_block
*ib
= bufp
;
1874 /* index based on media type in media block */
1875 switch(ib
->opts
& MediaBlockMask
) {
1876 case 0: /* 10baseT */
1877 de
->media_supported
|= SUPPORTED_TP
| SUPPORTED_10baseT_Half
1878 | SUPPORTED_Autoneg
;
1880 de
->media
[DE_MEDIA_TP_AUTO
].type
= DE_MEDIA_TP_AUTO
;
1883 de
->media_supported
|= SUPPORTED_BNC
;
1887 de
->media_supported
|= SUPPORTED_AUI
;
1890 case 4: /* 10baseT-FD */
1891 de
->media_supported
|= SUPPORTED_TP
| SUPPORTED_10baseT_Full
1892 | SUPPORTED_Autoneg
;
1893 idx
= DE_MEDIA_TP_FD
;
1894 de
->media
[DE_MEDIA_TP_AUTO
].type
= DE_MEDIA_TP_AUTO
;
1900 de
->media
[idx
].type
= idx
;
1902 if (netif_msg_probe(de
))
1903 pr_info("de%d: media block #%u: %s",
1905 media_name
[de
->media
[idx
].type
]);
1907 bufp
+= sizeof (ib
->opts
);
1909 if (ib
->opts
& MediaCustomCSRs
) {
1910 de
->media
[idx
].csr13
= get_unaligned(&ib
->csr13
);
1911 de
->media
[idx
].csr14
= get_unaligned(&ib
->csr14
);
1912 de
->media
[idx
].csr15
= get_unaligned(&ib
->csr15
);
1913 bufp
+= sizeof(ib
->csr13
) + sizeof(ib
->csr14
) +
1916 if (netif_msg_probe(de
))
1917 pr_cont(" (%x,%x,%x)\n",
1918 de
->media
[idx
].csr13
,
1919 de
->media
[idx
].csr14
,
1920 de
->media
[idx
].csr15
);
1922 } else if (netif_msg_probe(de
))
1925 if (bufp
> ((void *)&ee_data
[DE_EEPROM_SIZE
- 3]))
1929 de
->media_advertise
= de
->media_supported
;
1932 /* fill in defaults, for cases where custom CSRs not used */
1933 for (i
= 0; i
< DE_MAX_MEDIA
; i
++) {
1934 if (de
->media
[i
].csr13
== 0xffff)
1935 de
->media
[i
].csr13
= t21041_csr13
[i
];
1936 if (de
->media
[i
].csr14
== 0xffff) {
1937 /* autonegotiation is broken at least on some chip
1938 revisions - rev. 0x21 works, 0x11 does not */
1939 if (de
->pdev
->revision
< 0x20)
1940 de
->media
[i
].csr14
= t21041_csr14_brk
[i
];
1942 de
->media
[i
].csr14
= t21041_csr14
[i
];
1944 if (de
->media
[i
].csr15
== 0xffff)
1945 de
->media
[i
].csr15
= t21041_csr15
[i
];
1948 de
->ee_data
= kmemdup(&ee_data
[0], DE_EEPROM_SIZE
, GFP_KERNEL
);
1953 /* for error cases, it's ok to assume we support all these */
1954 for (i
= 0; i
< DE_MAX_MEDIA
; i
++)
1955 de
->media
[i
].type
= i
;
1956 de
->media_supported
=
1957 SUPPORTED_10baseT_Half
|
1958 SUPPORTED_10baseT_Full
|
1966 static const struct net_device_ops de_netdev_ops
= {
1967 .ndo_open
= de_open
,
1968 .ndo_stop
= de_close
,
1969 .ndo_set_multicast_list
= de_set_rx_mode
,
1970 .ndo_start_xmit
= de_start_xmit
,
1971 .ndo_get_stats
= de_get_stats
,
1972 .ndo_tx_timeout
= de_tx_timeout
,
1973 .ndo_change_mtu
= eth_change_mtu
,
1974 .ndo_set_mac_address
= eth_mac_addr
,
1975 .ndo_validate_addr
= eth_validate_addr
,
1978 static int __devinit
de_init_one (struct pci_dev
*pdev
,
1979 const struct pci_device_id
*ent
)
1981 struct net_device
*dev
;
1982 struct de_private
*de
;
1985 unsigned long pciaddr
;
1986 static int board_idx
= -1;
1992 printk("%s", version
);
1995 /* allocate a new ethernet device structure, and fill in defaults */
1996 dev
= alloc_etherdev(sizeof(struct de_private
));
2000 dev
->netdev_ops
= &de_netdev_ops
;
2001 SET_NETDEV_DEV(dev
, &pdev
->dev
);
2002 dev
->ethtool_ops
= &de_ethtool_ops
;
2003 dev
->watchdog_timeo
= TX_TIMEOUT
;
2005 de
= netdev_priv(dev
);
2006 de
->de21040
= ent
->driver_data
== 0 ? 1 : 0;
2009 de
->msg_enable
= (debug
< 0 ? DE_DEF_MSG_ENABLE
: debug
);
2010 de
->board_idx
= board_idx
;
2011 spin_lock_init (&de
->lock
);
2012 init_timer(&de
->media_timer
);
2014 de
->media_timer
.function
= de21040_media_timer
;
2016 de
->media_timer
.function
= de21041_media_timer
;
2017 de
->media_timer
.data
= (unsigned long) de
;
2019 netif_carrier_off(dev
);
2020 netif_stop_queue(dev
);
2022 /* wake up device, assign resources */
2023 rc
= pci_enable_device(pdev
);
2027 /* reserve PCI resources to ensure driver atomicity */
2028 rc
= pci_request_regions(pdev
, DRV_NAME
);
2030 goto err_out_disable
;
2032 /* check for invalid IRQ value */
2033 if (pdev
->irq
< 2) {
2035 pr_err(PFX
"invalid irq (%d) for pci dev %s\n",
2036 pdev
->irq
, pci_name(pdev
));
2040 dev
->irq
= pdev
->irq
;
2042 /* obtain and check validity of PCI I/O address */
2043 pciaddr
= pci_resource_start(pdev
, 1);
2046 pr_err(PFX
"no MMIO resource for pci dev %s\n", pci_name(pdev
));
2049 if (pci_resource_len(pdev
, 1) < DE_REGS_SIZE
) {
2051 pr_err(PFX
"MMIO resource (%llx) too small on pci dev %s\n",
2052 (unsigned long long)pci_resource_len(pdev
, 1),
2057 /* remap CSR registers */
2058 regs
= ioremap_nocache(pciaddr
, DE_REGS_SIZE
);
2061 pr_err(PFX
"Cannot map PCI MMIO (%llx@%lx) on pci dev %s\n",
2062 (unsigned long long)pci_resource_len(pdev
, 1),
2063 pciaddr
, pci_name(pdev
));
2066 dev
->base_addr
= (unsigned long) regs
;
2069 de_adapter_wake(de
);
2071 /* make sure hardware is not running */
2072 rc
= de_reset_mac(de
);
2074 pr_err(PFX
"Cannot reset MAC, pci dev %s\n", pci_name(pdev
));
2078 /* get MAC address, initialize default media type and
2079 * get list of supported media
2082 de21040_get_mac_address(de
);
2083 de21040_get_media_info(de
);
2085 de21041_get_srom_info(de
);
2088 /* register new network interface with kernel */
2089 rc
= register_netdev(dev
);
2093 /* print info about board and interface just registered */
2094 dev_info(&dev
->dev
, "%s at 0x%lx, %pM, IRQ %d\n",
2095 de
->de21040
? "21040" : "21041",
2100 pci_set_drvdata(pdev
, dev
);
2102 /* enable busmastering */
2103 pci_set_master(pdev
);
2105 /* put adapter to sleep */
2106 de_adapter_sleep(de
);
2114 pci_release_regions(pdev
);
2116 pci_disable_device(pdev
);
2122 static void __devexit
de_remove_one (struct pci_dev
*pdev
)
2124 struct net_device
*dev
= pci_get_drvdata(pdev
);
2125 struct de_private
*de
= netdev_priv(dev
);
2128 unregister_netdev(dev
);
2131 pci_release_regions(pdev
);
2132 pci_disable_device(pdev
);
2133 pci_set_drvdata(pdev
, NULL
);
2139 static int de_suspend (struct pci_dev
*pdev
, pm_message_t state
)
2141 struct net_device
*dev
= pci_get_drvdata (pdev
);
2142 struct de_private
*de
= netdev_priv(dev
);
2145 if (netif_running (dev
)) {
2146 del_timer_sync(&de
->media_timer
);
2148 disable_irq(dev
->irq
);
2149 spin_lock_irq(&de
->lock
);
2152 netif_stop_queue(dev
);
2153 netif_device_detach(dev
);
2154 netif_carrier_off(dev
);
2156 spin_unlock_irq(&de
->lock
);
2157 enable_irq(dev
->irq
);
2159 /* Update the error counts. */
2162 synchronize_irq(dev
->irq
);
2165 de_adapter_sleep(de
);
2166 pci_disable_device(pdev
);
2168 netif_device_detach(dev
);
2174 static int de_resume (struct pci_dev
*pdev
)
2176 struct net_device
*dev
= pci_get_drvdata (pdev
);
2177 struct de_private
*de
= netdev_priv(dev
);
2181 if (netif_device_present(dev
))
2183 if (!netif_running(dev
))
2185 if ((retval
= pci_enable_device(pdev
))) {
2186 dev_err(&dev
->dev
, "pci_enable_device failed in resume\n");
2189 pci_set_master(pdev
);
2193 netif_device_attach(dev
);
2199 #endif /* CONFIG_PM */
2201 static struct pci_driver de_driver
= {
2203 .id_table
= de_pci_tbl
,
2204 .probe
= de_init_one
,
2205 .remove
= __devexit_p(de_remove_one
),
2207 .suspend
= de_suspend
,
2208 .resume
= de_resume
,
2212 static int __init
de_init (void)
2215 printk("%s", version
);
2217 return pci_register_driver(&de_driver
);
2220 static void __exit
de_exit (void)
2222 pci_unregister_driver (&de_driver
);
2225 module_init(de_init
);
2226 module_exit(de_exit
);