1 /* D-Link DL2000-based Gigabit Ethernet Adapter Linux driver */
3 Copyright (c) 2001, 2002 by D-Link Corporation
4 Written by Edward Peng.<edward_peng@dlink.com.tw>
5 Created 03-May-2001, base on Linux' sundance.c.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
13 #define DRV_NAME "DL2000/TC902x-based linux driver"
14 #define DRV_VERSION "v1.19"
15 #define DRV_RELDATE "2007/08/12"
17 #include <linux/dma-mapping.h>
19 #define dw32(reg, val) iowrite32(val, ioaddr + (reg))
20 #define dw16(reg, val) iowrite16(val, ioaddr + (reg))
21 #define dw8(reg, val) iowrite8(val, ioaddr + (reg))
22 #define dr32(reg) ioread32(ioaddr + (reg))
23 #define dr16(reg) ioread16(ioaddr + (reg))
24 #define dr8(reg) ioread8(ioaddr + (reg))
26 static char version[] =
27 KERN_INFO DRV_NAME " " DRV_VERSION " " DRV_RELDATE "\n";
29 static int mtu[MAX_UNITS];
30 static int vlan[MAX_UNITS];
31 static int jumbo[MAX_UNITS];
32 static char *media[MAX_UNITS];
33 static int tx_flow=-1;
34 static int rx_flow=-1;
35 static int copy_thresh;
36 static int rx_coalesce=10; /* Rx frame count each interrupt */
37 static int rx_timeout=200; /* Rx DMA wait time in 640ns increments */
38 static int tx_coalesce=16; /* HW xmit count each TxDMAComplete */
41 MODULE_AUTHOR ("Edward Peng");
42 MODULE_DESCRIPTION ("D-Link DL2000-based Gigabit Ethernet Adapter");
43 MODULE_LICENSE("GPL");
44 module_param_array(mtu, int, NULL, 0);
45 module_param_array(media, charp, NULL, 0);
46 module_param_array(vlan, int, NULL, 0);
47 module_param_array(jumbo, int, NULL, 0);
48 module_param(tx_flow, int, 0);
49 module_param(rx_flow, int, 0);
50 module_param(copy_thresh, int, 0);
51 module_param(rx_coalesce, int, 0); /* Rx frame count each interrupt */
52 module_param(rx_timeout, int, 0); /* Rx DMA wait time in 64ns increments */
53 module_param(tx_coalesce, int, 0); /* HW xmit count each TxDMAComplete */
56 /* Enable the default interrupts */
57 #define DEFAULT_INTR (RxDMAComplete | HostError | IntRequested | TxDMAComplete| \
58 UpdateStats | LinkEvent)
60 static void dl2k_enable_int(struct netdev_private *np)
62 void __iomem *ioaddr = np->ioaddr;
64 dw16(IntEnable, DEFAULT_INTR);
67 static const int max_intrloop = 50;
68 static const int multicast_filter_limit = 0x40;
70 static int rio_open (struct net_device *dev);
71 static void rio_timer (unsigned long data);
72 static void rio_tx_timeout (struct net_device *dev);
73 static void alloc_list (struct net_device *dev);
74 static netdev_tx_t start_xmit (struct sk_buff *skb, struct net_device *dev);
75 static irqreturn_t rio_interrupt (int irq, void *dev_instance);
76 static void rio_free_tx (struct net_device *dev, int irq);
77 static void tx_error (struct net_device *dev, int tx_status);
78 static int receive_packet (struct net_device *dev);
79 static void rio_error (struct net_device *dev, int int_status);
80 static int change_mtu (struct net_device *dev, int new_mtu);
81 static void set_multicast (struct net_device *dev);
82 static struct net_device_stats *get_stats (struct net_device *dev);
83 static int clear_stats (struct net_device *dev);
84 static int rio_ioctl (struct net_device *dev, struct ifreq *rq, int cmd);
85 static int rio_close (struct net_device *dev);
86 static int find_miiphy (struct net_device *dev);
87 static int parse_eeprom (struct net_device *dev);
88 static int read_eeprom (struct netdev_private *, int eep_addr);
89 static int mii_wait_link (struct net_device *dev, int wait);
90 static int mii_set_media (struct net_device *dev);
91 static int mii_get_media (struct net_device *dev);
92 static int mii_set_media_pcs (struct net_device *dev);
93 static int mii_get_media_pcs (struct net_device *dev);
94 static int mii_read (struct net_device *dev, int phy_addr, int reg_num);
95 static int mii_write (struct net_device *dev, int phy_addr, int reg_num,
98 static const struct ethtool_ops ethtool_ops;
100 static const struct net_device_ops netdev_ops = {
101 .ndo_open = rio_open,
102 .ndo_start_xmit = start_xmit,
103 .ndo_stop = rio_close,
104 .ndo_get_stats = get_stats,
105 .ndo_validate_addr = eth_validate_addr,
106 .ndo_set_mac_address = eth_mac_addr,
107 .ndo_set_rx_mode = set_multicast,
108 .ndo_do_ioctl = rio_ioctl,
109 .ndo_tx_timeout = rio_tx_timeout,
110 .ndo_change_mtu = change_mtu,
114 rio_probe1 (struct pci_dev *pdev, const struct pci_device_id *ent)
116 struct net_device *dev;
117 struct netdev_private *np;
119 int chip_idx = ent->driver_data;
121 void __iomem *ioaddr;
122 static int version_printed;
126 if (!version_printed++)
127 printk ("%s", version);
129 err = pci_enable_device (pdev);
134 err = pci_request_regions (pdev, "dl2k");
136 goto err_out_disable;
138 pci_set_master (pdev);
142 dev = alloc_etherdev (sizeof (*np));
145 SET_NETDEV_DEV(dev, &pdev->dev);
147 np = netdev_priv(dev);
149 /* IO registers range. */
150 ioaddr = pci_iomap(pdev, 0, 0);
153 np->eeprom_addr = ioaddr;
156 /* MM registers range. */
157 ioaddr = pci_iomap(pdev, 1, 0);
159 goto err_out_iounmap;
162 np->chip_id = chip_idx;
164 spin_lock_init (&np->tx_lock);
165 spin_lock_init (&np->rx_lock);
167 /* Parse manual configuration */
170 if (card_idx < MAX_UNITS) {
171 if (media[card_idx] != NULL) {
173 if (strcmp (media[card_idx], "auto") == 0 ||
174 strcmp (media[card_idx], "autosense") == 0 ||
175 strcmp (media[card_idx], "0") == 0 ) {
177 } else if (strcmp (media[card_idx], "100mbps_fd") == 0 ||
178 strcmp (media[card_idx], "4") == 0) {
181 } else if (strcmp (media[card_idx], "100mbps_hd") == 0 ||
182 strcmp (media[card_idx], "3") == 0) {
185 } else if (strcmp (media[card_idx], "10mbps_fd") == 0 ||
186 strcmp (media[card_idx], "2") == 0) {
189 } else if (strcmp (media[card_idx], "10mbps_hd") == 0 ||
190 strcmp (media[card_idx], "1") == 0) {
193 } else if (strcmp (media[card_idx], "1000mbps_fd") == 0 ||
194 strcmp (media[card_idx], "6") == 0) {
197 } else if (strcmp (media[card_idx], "1000mbps_hd") == 0 ||
198 strcmp (media[card_idx], "5") == 0) {
205 if (jumbo[card_idx] != 0) {
207 dev->mtu = MAX_JUMBO;
210 if (mtu[card_idx] > 0 && mtu[card_idx] < PACKET_SIZE)
211 dev->mtu = mtu[card_idx];
213 np->vlan = (vlan[card_idx] > 0 && vlan[card_idx] < 4096) ?
215 if (rx_coalesce > 0 && rx_timeout > 0) {
216 np->rx_coalesce = rx_coalesce;
217 np->rx_timeout = rx_timeout;
220 np->tx_flow = (tx_flow == 0) ? 0 : 1;
221 np->rx_flow = (rx_flow == 0) ? 0 : 1;
225 else if (tx_coalesce > TX_RING_SIZE-1)
226 tx_coalesce = TX_RING_SIZE - 1;
228 dev->netdev_ops = &netdev_ops;
229 dev->watchdog_timeo = TX_TIMEOUT;
230 SET_ETHTOOL_OPS(dev, ðtool_ops);
232 dev->features = NETIF_F_IP_CSUM;
234 pci_set_drvdata (pdev, dev);
236 ring_space = pci_alloc_consistent (pdev, TX_TOTAL_SIZE, &ring_dma);
238 goto err_out_iounmap;
239 np->tx_ring = ring_space;
240 np->tx_ring_dma = ring_dma;
242 ring_space = pci_alloc_consistent (pdev, RX_TOTAL_SIZE, &ring_dma);
244 goto err_out_unmap_tx;
245 np->rx_ring = ring_space;
246 np->rx_ring_dma = ring_dma;
248 /* Parse eeprom data */
251 /* Find PHY address */
252 err = find_miiphy (dev);
254 goto err_out_unmap_rx;
257 np->phy_media = (dr16(ASICCtrl) & PhyMedia) ? 1 : 0;
259 /* Set media and reset PHY */
261 /* default Auto-Negotiation for fiber deivices */
262 if (np->an_enable == 2) {
265 mii_set_media_pcs (dev);
267 /* Auto-Negotiation is mandatory for 1000BASE-T,
268 IEEE 802.3ab Annex 28D page 14 */
269 if (np->speed == 1000)
274 err = register_netdev (dev);
276 goto err_out_unmap_rx;
280 printk (KERN_INFO "%s: %s, %pM, IRQ %d\n",
281 dev->name, np->name, dev->dev_addr, irq);
283 printk(KERN_INFO "tx_coalesce:\t%d packets\n",
287 "rx_coalesce:\t%d packets\n"
288 "rx_timeout: \t%d ns\n",
289 np->rx_coalesce, np->rx_timeout*640);
291 printk(KERN_INFO "vlan(id):\t%d\n", np->vlan);
295 pci_free_consistent (pdev, RX_TOTAL_SIZE, np->rx_ring, np->rx_ring_dma);
297 pci_free_consistent (pdev, TX_TOTAL_SIZE, np->tx_ring, np->tx_ring_dma);
300 pci_iounmap(pdev, np->ioaddr);
302 pci_iounmap(pdev, np->eeprom_addr);
306 pci_release_regions (pdev);
308 pci_disable_device (pdev);
313 find_miiphy (struct net_device *dev)
315 struct netdev_private *np = netdev_priv(dev);
316 int i, phy_found = 0;
317 np = netdev_priv(dev);
320 for (i = 31; i >= 0; i--) {
321 int mii_status = mii_read (dev, i, 1);
322 if (mii_status != 0xffff && mii_status != 0x0000) {
328 printk (KERN_ERR "%s: No MII PHY found!\n", dev->name);
335 parse_eeprom (struct net_device *dev)
337 struct netdev_private *np = netdev_priv(dev);
338 void __iomem *ioaddr = np->ioaddr;
343 PSROM_t psrom = (PSROM_t) sromdata;
347 for (i = 0; i < 128; i++)
348 ((__le16 *) sromdata)[i] = cpu_to_le16(read_eeprom(np, i));
350 if (np->pdev->vendor == PCI_VENDOR_ID_DLINK) { /* D-Link Only */
352 crc = ~ether_crc_le (256 - 4, sromdata);
353 if (psrom->crc != cpu_to_le32(crc)) {
354 printk (KERN_ERR "%s: EEPROM data CRC error.\n",
360 /* Set MAC address */
361 for (i = 0; i < 6; i++)
362 dev->dev_addr[i] = psrom->mac_addr[i];
364 if (np->pdev->vendor != PCI_VENDOR_ID_DLINK) {
368 /* Parse Software Information Block */
370 psib = (u8 *) sromdata;
374 if ((cid == 0 && next == 0) || (cid == 0xff && next == 0xff)) {
375 printk (KERN_ERR "Cell data error\n");
379 case 0: /* Format version */
381 case 1: /* End of cell */
383 case 2: /* Duplex Polarity */
384 np->duplex_polarity = psib[i];
385 dw8(PhyCtrl, dr8(PhyCtrl) | psib[i]);
387 case 3: /* Wake Polarity */
388 np->wake_polarity = psib[i];
390 case 9: /* Adapter description */
391 j = (next - i > 255) ? 255 : next - i;
392 memcpy (np->name, &(psib[i]), j);
398 case 8: /* Reversed */
400 default: /* Unknown cell */
410 rio_open (struct net_device *dev)
412 struct netdev_private *np = netdev_priv(dev);
413 void __iomem *ioaddr = np->ioaddr;
414 const int irq = np->pdev->irq;
418 i = request_irq(irq, rio_interrupt, IRQF_SHARED, dev->name, dev);
422 /* Reset all logic functions */
424 GlobalReset | DMAReset | FIFOReset | NetworkReset | HostReset);
427 /* DebugCtrl bit 4, 5, 9 must set */
428 dw32(DebugCtrl, dr32(DebugCtrl) | 0x0230);
432 dw16(MaxFrameSize, MAX_JUMBO+14);
436 /* Get station address */
437 for (i = 0; i < 6; i++)
438 dw8(StationAddr0 + i, dev->dev_addr[i]);
442 dw32(RxDMAIntCtrl, np->rx_coalesce | np->rx_timeout << 16);
444 /* Set RIO to poll every N*320nsec. */
445 dw8(RxDMAPollPeriod, 0x20);
446 dw8(TxDMAPollPeriod, 0xff);
447 dw8(RxDMABurstThresh, 0x30);
448 dw8(RxDMAUrgentThresh, 0x30);
449 dw32(RmonStatMask, 0x0007ffff);
450 /* clear statistics */
455 /* priority field in RxDMAIntCtrl */
456 dw32(RxDMAIntCtrl, dr32(RxDMAIntCtrl) | 0x7 << 10);
458 dw16(VLANId, np->vlan);
459 /* Length/Type should be 0x8100 */
460 dw32(VLANTag, 0x8100 << 16 | np->vlan);
461 /* Enable AutoVLANuntagging, but disable AutoVLANtagging.
462 VLAN information tagged by TFC' VID, CFI fields. */
463 dw32(MACCtrl, dr32(MACCtrl) | AutoVLANuntagging);
466 init_timer (&np->timer);
467 np->timer.expires = jiffies + 1*HZ;
468 np->timer.data = (unsigned long) dev;
469 np->timer.function = rio_timer;
470 add_timer (&np->timer);
473 dw32(MACCtrl, dr32(MACCtrl) | StatsEnable | RxEnable | TxEnable);
476 macctrl |= (np->vlan) ? AutoVLANuntagging : 0;
477 macctrl |= (np->full_duplex) ? DuplexSelect : 0;
478 macctrl |= (np->tx_flow) ? TxFlowControlEnable : 0;
479 macctrl |= (np->rx_flow) ? RxFlowControlEnable : 0;
480 dw16(MACCtrl, macctrl);
482 netif_start_queue (dev);
489 rio_timer (unsigned long data)
491 struct net_device *dev = (struct net_device *)data;
492 struct netdev_private *np = netdev_priv(dev);
494 int next_tick = 1*HZ;
497 spin_lock_irqsave(&np->rx_lock, flags);
498 /* Recover rx ring exhausted error */
499 if (np->cur_rx - np->old_rx >= RX_RING_SIZE) {
500 printk(KERN_INFO "Try to recover rx ring exhausted...\n");
501 /* Re-allocate skbuffs to fill the descriptor ring */
502 for (; np->cur_rx - np->old_rx > 0; np->old_rx++) {
504 entry = np->old_rx % RX_RING_SIZE;
505 /* Dropped packets don't need to re-allocate */
506 if (np->rx_skbuff[entry] == NULL) {
507 skb = netdev_alloc_skb_ip_align(dev,
510 np->rx_ring[entry].fraginfo = 0;
512 "%s: Still unable to re-allocate Rx skbuff.#%d\n",
516 np->rx_skbuff[entry] = skb;
517 np->rx_ring[entry].fraginfo =
518 cpu_to_le64 (pci_map_single
519 (np->pdev, skb->data, np->rx_buf_sz,
520 PCI_DMA_FROMDEVICE));
522 np->rx_ring[entry].fraginfo |=
523 cpu_to_le64((u64)np->rx_buf_sz << 48);
524 np->rx_ring[entry].status = 0;
527 spin_unlock_irqrestore (&np->rx_lock, flags);
528 np->timer.expires = jiffies + next_tick;
529 add_timer(&np->timer);
533 rio_tx_timeout (struct net_device *dev)
535 struct netdev_private *np = netdev_priv(dev);
536 void __iomem *ioaddr = np->ioaddr;
538 printk (KERN_INFO "%s: Tx timed out (%4.4x), is buffer full?\n",
539 dev->name, dr32(TxStatus));
542 dev->trans_start = jiffies; /* prevent tx timeout */
545 /* allocate and initialize Tx and Rx descriptors */
547 alloc_list (struct net_device *dev)
549 struct netdev_private *np = netdev_priv(dev);
550 void __iomem *ioaddr = np->ioaddr;
553 np->cur_rx = np->cur_tx = 0;
554 np->old_rx = np->old_tx = 0;
555 np->rx_buf_sz = (dev->mtu <= 1500 ? PACKET_SIZE : dev->mtu + 32);
557 /* Initialize Tx descriptors, TFDListPtr leaves in start_xmit(). */
558 for (i = 0; i < TX_RING_SIZE; i++) {
559 np->tx_skbuff[i] = NULL;
560 np->tx_ring[i].status = cpu_to_le64 (TFDDone);
561 np->tx_ring[i].next_desc = cpu_to_le64 (np->tx_ring_dma +
562 ((i+1)%TX_RING_SIZE) *
563 sizeof (struct netdev_desc));
566 /* Initialize Rx descriptors */
567 for (i = 0; i < RX_RING_SIZE; i++) {
568 np->rx_ring[i].next_desc = cpu_to_le64 (np->rx_ring_dma +
569 ((i + 1) % RX_RING_SIZE) *
570 sizeof (struct netdev_desc));
571 np->rx_ring[i].status = 0;
572 np->rx_ring[i].fraginfo = 0;
573 np->rx_skbuff[i] = NULL;
576 /* Allocate the rx buffers */
577 for (i = 0; i < RX_RING_SIZE; i++) {
578 /* Allocated fixed size of skbuff */
581 skb = netdev_alloc_skb_ip_align(dev, np->rx_buf_sz);
582 np->rx_skbuff[i] = skb;
585 "%s: alloc_list: allocate Rx buffer error! ",
589 /* Rubicon now supports 40 bits of addressing space. */
590 np->rx_ring[i].fraginfo =
591 cpu_to_le64 ( pci_map_single (
592 np->pdev, skb->data, np->rx_buf_sz,
593 PCI_DMA_FROMDEVICE));
594 np->rx_ring[i].fraginfo |= cpu_to_le64((u64)np->rx_buf_sz << 48);
598 dw32(RFDListPtr0, np->rx_ring_dma);
599 dw32(RFDListPtr1, 0);
603 start_xmit (struct sk_buff *skb, struct net_device *dev)
605 struct netdev_private *np = netdev_priv(dev);
606 void __iomem *ioaddr = np->ioaddr;
607 struct netdev_desc *txdesc;
609 u64 tfc_vlan_tag = 0;
611 if (np->link_status == 0) { /* Link Down */
615 entry = np->cur_tx % TX_RING_SIZE;
616 np->tx_skbuff[entry] = skb;
617 txdesc = &np->tx_ring[entry];
620 if (skb->ip_summed == CHECKSUM_PARTIAL) {
622 cpu_to_le64 (TCPChecksumEnable | UDPChecksumEnable |
627 tfc_vlan_tag = VLANTagInsert |
628 ((u64)np->vlan << 32) |
629 ((u64)skb->priority << 45);
631 txdesc->fraginfo = cpu_to_le64 (pci_map_single (np->pdev, skb->data,
634 txdesc->fraginfo |= cpu_to_le64((u64)skb->len << 48);
636 /* DL2K bug: DMA fails to get next descriptor ptr in 10Mbps mode
637 * Work around: Always use 1 descriptor in 10Mbps mode */
638 if (entry % np->tx_coalesce == 0 || np->speed == 10)
639 txdesc->status = cpu_to_le64 (entry | tfc_vlan_tag |
642 (1 << FragCountShift));
644 txdesc->status = cpu_to_le64 (entry | tfc_vlan_tag |
646 (1 << FragCountShift));
649 dw32(DMACtrl, dr32(DMACtrl) | 0x00001000);
651 dw32(CountDown, 10000);
652 np->cur_tx = (np->cur_tx + 1) % TX_RING_SIZE;
653 if ((np->cur_tx - np->old_tx + TX_RING_SIZE) % TX_RING_SIZE
654 < TX_QUEUE_LEN - 1 && np->speed != 10) {
656 } else if (!netif_queue_stopped(dev)) {
657 netif_stop_queue (dev);
660 /* The first TFDListPtr */
661 if (!dr32(TFDListPtr0)) {
662 dw32(TFDListPtr0, np->tx_ring_dma +
663 entry * sizeof (struct netdev_desc));
664 dw32(TFDListPtr1, 0);
671 rio_interrupt (int irq, void *dev_instance)
673 struct net_device *dev = dev_instance;
674 struct netdev_private *np = netdev_priv(dev);
675 void __iomem *ioaddr = np->ioaddr;
677 int cnt = max_intrloop;
681 int_status = dr16(IntStatus);
682 dw16(IntStatus, int_status);
683 int_status &= DEFAULT_INTR;
684 if (int_status == 0 || --cnt < 0)
687 /* Processing received packets */
688 if (int_status & RxDMAComplete)
689 receive_packet (dev);
690 /* TxDMAComplete interrupt */
691 if ((int_status & (TxDMAComplete|IntRequested))) {
693 tx_status = dr32(TxStatus);
694 if (tx_status & 0x01)
695 tx_error (dev, tx_status);
696 /* Free used tx skbuffs */
697 rio_free_tx (dev, 1);
700 /* Handle uncommon events */
702 (HostError | LinkEvent | UpdateStats))
703 rio_error (dev, int_status);
705 if (np->cur_tx != np->old_tx)
706 dw32(CountDown, 100);
707 return IRQ_RETVAL(handled);
710 static inline dma_addr_t desc_to_dma(struct netdev_desc *desc)
712 return le64_to_cpu(desc->fraginfo) & DMA_BIT_MASK(48);
716 rio_free_tx (struct net_device *dev, int irq)
718 struct netdev_private *np = netdev_priv(dev);
719 int entry = np->old_tx % TX_RING_SIZE;
721 unsigned long flag = 0;
724 spin_lock(&np->tx_lock);
726 spin_lock_irqsave(&np->tx_lock, flag);
728 /* Free used tx skbuffs */
729 while (entry != np->cur_tx) {
732 if (!(np->tx_ring[entry].status & cpu_to_le64(TFDDone)))
734 skb = np->tx_skbuff[entry];
735 pci_unmap_single (np->pdev,
736 desc_to_dma(&np->tx_ring[entry]),
737 skb->len, PCI_DMA_TODEVICE);
739 dev_kfree_skb_irq (skb);
743 np->tx_skbuff[entry] = NULL;
744 entry = (entry + 1) % TX_RING_SIZE;
748 spin_unlock(&np->tx_lock);
750 spin_unlock_irqrestore(&np->tx_lock, flag);
753 /* If the ring is no longer full, clear tx_full and
754 call netif_wake_queue() */
756 if (netif_queue_stopped(dev) &&
757 ((np->cur_tx - np->old_tx + TX_RING_SIZE) % TX_RING_SIZE
758 < TX_QUEUE_LEN - 1 || np->speed == 10)) {
759 netif_wake_queue (dev);
764 tx_error (struct net_device *dev, int tx_status)
766 struct netdev_private *np = netdev_priv(dev);
767 void __iomem *ioaddr = np->ioaddr;
771 frame_id = (tx_status & 0xffff0000);
772 printk (KERN_ERR "%s: Transmit error, TxStatus %4.4x, FrameId %d.\n",
773 dev->name, tx_status, frame_id);
774 np->stats.tx_errors++;
775 /* Ttransmit Underrun */
776 if (tx_status & 0x10) {
777 np->stats.tx_fifo_errors++;
778 dw16(TxStartThresh, dr16(TxStartThresh) + 0x10);
779 /* Transmit Underrun need to set TxReset, DMARest, FIFOReset */
781 TxReset | DMAReset | FIFOReset | NetworkReset);
782 /* Wait for ResetBusy bit clear */
783 for (i = 50; i > 0; i--) {
784 if (!(dr16(ASICCtrl + 2) & ResetBusy))
788 rio_free_tx (dev, 1);
789 /* Reset TFDListPtr */
790 dw32(TFDListPtr0, np->tx_ring_dma +
791 np->old_tx * sizeof (struct netdev_desc));
792 dw32(TFDListPtr1, 0);
794 /* Let TxStartThresh stay default value */
797 if (tx_status & 0x04) {
798 np->stats.tx_fifo_errors++;
799 /* TxReset and clear FIFO */
800 dw16(ASICCtrl + 2, TxReset | FIFOReset);
801 /* Wait reset done */
802 for (i = 50; i > 0; i--) {
803 if (!(dr16(ASICCtrl + 2) & ResetBusy))
807 /* Let TxStartThresh stay default value */
809 /* Maximum Collisions */
811 if (tx_status & 0x08)
812 np->stats.collisions16++;
814 if (tx_status & 0x08)
815 np->stats.collisions++;
818 dw32(MACCtrl, dr16(MACCtrl) | TxEnable);
822 receive_packet (struct net_device *dev)
824 struct netdev_private *np = netdev_priv(dev);
825 int entry = np->cur_rx % RX_RING_SIZE;
828 /* If RFDDone, FrameStart and FrameEnd set, there is a new packet in. */
830 struct netdev_desc *desc = &np->rx_ring[entry];
834 if (!(desc->status & cpu_to_le64(RFDDone)) ||
835 !(desc->status & cpu_to_le64(FrameStart)) ||
836 !(desc->status & cpu_to_le64(FrameEnd)))
839 /* Chip omits the CRC. */
840 frame_status = le64_to_cpu(desc->status);
841 pkt_len = frame_status & 0xffff;
844 /* Update rx error statistics, drop packet. */
845 if (frame_status & RFS_Errors) {
846 np->stats.rx_errors++;
847 if (frame_status & (RxRuntFrame | RxLengthError))
848 np->stats.rx_length_errors++;
849 if (frame_status & RxFCSError)
850 np->stats.rx_crc_errors++;
851 if (frame_status & RxAlignmentError && np->speed != 1000)
852 np->stats.rx_frame_errors++;
853 if (frame_status & RxFIFOOverrun)
854 np->stats.rx_fifo_errors++;
858 /* Small skbuffs for short packets */
859 if (pkt_len > copy_thresh) {
860 pci_unmap_single (np->pdev,
864 skb_put (skb = np->rx_skbuff[entry], pkt_len);
865 np->rx_skbuff[entry] = NULL;
866 } else if ((skb = netdev_alloc_skb_ip_align(dev, pkt_len))) {
867 pci_dma_sync_single_for_cpu(np->pdev,
871 skb_copy_to_linear_data (skb,
872 np->rx_skbuff[entry]->data,
874 skb_put (skb, pkt_len);
875 pci_dma_sync_single_for_device(np->pdev,
880 skb->protocol = eth_type_trans (skb, dev);
882 /* Checksum done by hw, but csum value unavailable. */
883 if (np->pdev->pci_rev_id >= 0x0c &&
884 !(frame_status & (TCPError | UDPError | IPError))) {
885 skb->ip_summed = CHECKSUM_UNNECESSARY;
890 entry = (entry + 1) % RX_RING_SIZE;
892 spin_lock(&np->rx_lock);
894 /* Re-allocate skbuffs to fill the descriptor ring */
896 while (entry != np->cur_rx) {
898 /* Dropped packets don't need to re-allocate */
899 if (np->rx_skbuff[entry] == NULL) {
900 skb = netdev_alloc_skb_ip_align(dev, np->rx_buf_sz);
902 np->rx_ring[entry].fraginfo = 0;
904 "%s: receive_packet: "
905 "Unable to re-allocate Rx skbuff.#%d\n",
909 np->rx_skbuff[entry] = skb;
910 np->rx_ring[entry].fraginfo =
911 cpu_to_le64 (pci_map_single
912 (np->pdev, skb->data, np->rx_buf_sz,
913 PCI_DMA_FROMDEVICE));
915 np->rx_ring[entry].fraginfo |=
916 cpu_to_le64((u64)np->rx_buf_sz << 48);
917 np->rx_ring[entry].status = 0;
918 entry = (entry + 1) % RX_RING_SIZE;
921 spin_unlock(&np->rx_lock);
926 rio_error (struct net_device *dev, int int_status)
928 struct netdev_private *np = netdev_priv(dev);
929 void __iomem *ioaddr = np->ioaddr;
932 /* Link change event */
933 if (int_status & LinkEvent) {
934 if (mii_wait_link (dev, 10) == 0) {
935 printk (KERN_INFO "%s: Link up\n", dev->name);
937 mii_get_media_pcs (dev);
940 if (np->speed == 1000)
941 np->tx_coalesce = tx_coalesce;
945 macctrl |= (np->vlan) ? AutoVLANuntagging : 0;
946 macctrl |= (np->full_duplex) ? DuplexSelect : 0;
947 macctrl |= (np->tx_flow) ?
948 TxFlowControlEnable : 0;
949 macctrl |= (np->rx_flow) ?
950 RxFlowControlEnable : 0;
951 dw16(MACCtrl, macctrl);
953 netif_carrier_on(dev);
955 printk (KERN_INFO "%s: Link off\n", dev->name);
957 netif_carrier_off(dev);
961 /* UpdateStats statistics registers */
962 if (int_status & UpdateStats) {
966 /* PCI Error, a catastronphic error related to the bus interface
967 occurs, set GlobalReset and HostReset to reset. */
968 if (int_status & HostError) {
969 printk (KERN_ERR "%s: HostError! IntStatus %4.4x.\n",
970 dev->name, int_status);
971 dw16(ASICCtrl + 2, GlobalReset | HostReset);
976 static struct net_device_stats *
977 get_stats (struct net_device *dev)
979 struct netdev_private *np = netdev_priv(dev);
980 void __iomem *ioaddr = np->ioaddr;
984 unsigned int stat_reg;
986 /* All statistics registers need to be acknowledged,
987 else statistic overflow could cause problems */
989 np->stats.rx_packets += dr32(FramesRcvOk);
990 np->stats.tx_packets += dr32(FramesXmtOk);
991 np->stats.rx_bytes += dr32(OctetRcvOk);
992 np->stats.tx_bytes += dr32(OctetXmtOk);
994 np->stats.multicast = dr32(McstFramesRcvdOk);
995 np->stats.collisions += dr32(SingleColFrames)
996 + dr32(MultiColFrames);
998 /* detailed tx errors */
999 stat_reg = dr16(FramesAbortXSColls);
1000 np->stats.tx_aborted_errors += stat_reg;
1001 np->stats.tx_errors += stat_reg;
1003 stat_reg = dr16(CarrierSenseErrors);
1004 np->stats.tx_carrier_errors += stat_reg;
1005 np->stats.tx_errors += stat_reg;
1007 /* Clear all other statistic register. */
1008 dr32(McstOctetXmtOk);
1009 dr16(BcstFramesXmtdOk);
1010 dr32(McstFramesXmtdOk);
1011 dr16(BcstFramesRcvdOk);
1012 dr16(MacControlFramesRcvd);
1013 dr16(FrameTooLongErrors);
1014 dr16(InRangeLengthErrors);
1015 dr16(FramesCheckSeqErrors);
1016 dr16(FramesLostRxErrors);
1017 dr32(McstOctetXmtOk);
1018 dr32(BcstOctetXmtOk);
1019 dr32(McstFramesXmtdOk);
1020 dr32(FramesWDeferredXmt);
1021 dr32(LateCollisions);
1022 dr16(BcstFramesXmtdOk);
1023 dr16(MacControlFramesXmtd);
1024 dr16(FramesWEXDeferal);
1027 for (i = 0x100; i <= 0x150; i += 4)
1030 dr16(TxJumboFrames);
1031 dr16(RxJumboFrames);
1032 dr16(TCPCheckSumErrors);
1033 dr16(UDPCheckSumErrors);
1034 dr16(IPCheckSumErrors);
1039 clear_stats (struct net_device *dev)
1041 struct netdev_private *np = netdev_priv(dev);
1042 void __iomem *ioaddr = np->ioaddr;
1047 /* All statistics registers need to be acknowledged,
1048 else statistic overflow could cause problems */
1054 dr32(McstFramesRcvdOk);
1055 dr32(SingleColFrames);
1056 dr32(MultiColFrames);
1057 dr32(LateCollisions);
1058 /* detailed rx errors */
1059 dr16(FrameTooLongErrors);
1060 dr16(InRangeLengthErrors);
1061 dr16(FramesCheckSeqErrors);
1062 dr16(FramesLostRxErrors);
1064 /* detailed tx errors */
1065 dr16(FramesAbortXSColls);
1066 dr16(CarrierSenseErrors);
1068 /* Clear all other statistic register. */
1069 dr32(McstOctetXmtOk);
1070 dr16(BcstFramesXmtdOk);
1071 dr32(McstFramesXmtdOk);
1072 dr16(BcstFramesRcvdOk);
1073 dr16(MacControlFramesRcvd);
1074 dr32(McstOctetXmtOk);
1075 dr32(BcstOctetXmtOk);
1076 dr32(McstFramesXmtdOk);
1077 dr32(FramesWDeferredXmt);
1078 dr16(BcstFramesXmtdOk);
1079 dr16(MacControlFramesXmtd);
1080 dr16(FramesWEXDeferal);
1082 for (i = 0x100; i <= 0x150; i += 4)
1085 dr16(TxJumboFrames);
1086 dr16(RxJumboFrames);
1087 dr16(TCPCheckSumErrors);
1088 dr16(UDPCheckSumErrors);
1089 dr16(IPCheckSumErrors);
1095 change_mtu (struct net_device *dev, int new_mtu)
1097 struct netdev_private *np = netdev_priv(dev);
1098 int max = (np->jumbo) ? MAX_JUMBO : 1536;
1100 if ((new_mtu < 68) || (new_mtu > max)) {
1110 set_multicast (struct net_device *dev)
1112 struct netdev_private *np = netdev_priv(dev);
1113 void __iomem *ioaddr = np->ioaddr;
1117 hash_table[0] = hash_table[1] = 0;
1118 /* RxFlowcontrol DA: 01-80-C2-00-00-01. Hash index=0x39 */
1119 hash_table[1] |= 0x02000000;
1120 if (dev->flags & IFF_PROMISC) {
1121 /* Receive all frames promiscuously. */
1122 rx_mode = ReceiveAllFrames;
1123 } else if ((dev->flags & IFF_ALLMULTI) ||
1124 (netdev_mc_count(dev) > multicast_filter_limit)) {
1125 /* Receive broadcast and multicast frames */
1126 rx_mode = ReceiveBroadcast | ReceiveMulticast | ReceiveUnicast;
1127 } else if (!netdev_mc_empty(dev)) {
1128 struct netdev_hw_addr *ha;
1129 /* Receive broadcast frames and multicast frames filtering
1132 ReceiveBroadcast | ReceiveMulticastHash | ReceiveUnicast;
1133 netdev_for_each_mc_addr(ha, dev) {
1135 int crc = ether_crc_le(ETH_ALEN, ha->addr);
1136 /* The inverted high significant 6 bits of CRC are
1137 used as an index to hashtable */
1138 for (bit = 0; bit < 6; bit++)
1139 if (crc & (1 << (31 - bit)))
1140 index |= (1 << bit);
1141 hash_table[index / 32] |= (1 << (index % 32));
1144 rx_mode = ReceiveBroadcast | ReceiveUnicast;
1147 /* ReceiveVLANMatch field in ReceiveMode */
1148 rx_mode |= ReceiveVLANMatch;
1151 dw32(HashTable0, hash_table[0]);
1152 dw32(HashTable1, hash_table[1]);
1153 dw16(ReceiveMode, rx_mode);
1156 static void rio_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1158 struct netdev_private *np = netdev_priv(dev);
1160 strlcpy(info->driver, "dl2k", sizeof(info->driver));
1161 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
1162 strlcpy(info->bus_info, pci_name(np->pdev), sizeof(info->bus_info));
1165 static int rio_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1167 struct netdev_private *np = netdev_priv(dev);
1168 if (np->phy_media) {
1170 cmd->supported = SUPPORTED_Autoneg | SUPPORTED_FIBRE;
1171 cmd->advertising= ADVERTISED_Autoneg | ADVERTISED_FIBRE;
1172 cmd->port = PORT_FIBRE;
1173 cmd->transceiver = XCVR_INTERNAL;
1176 cmd->supported = SUPPORTED_10baseT_Half |
1177 SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half
1178 | SUPPORTED_100baseT_Full | SUPPORTED_1000baseT_Full |
1179 SUPPORTED_Autoneg | SUPPORTED_MII;
1180 cmd->advertising = ADVERTISED_10baseT_Half |
1181 ADVERTISED_10baseT_Full | ADVERTISED_100baseT_Half |
1182 ADVERTISED_100baseT_Full | ADVERTISED_1000baseT_Full|
1183 ADVERTISED_Autoneg | ADVERTISED_MII;
1184 cmd->port = PORT_MII;
1185 cmd->transceiver = XCVR_INTERNAL;
1187 if ( np->link_status ) {
1188 ethtool_cmd_speed_set(cmd, np->speed);
1189 cmd->duplex = np->full_duplex ? DUPLEX_FULL : DUPLEX_HALF;
1191 ethtool_cmd_speed_set(cmd, -1);
1195 cmd->autoneg = AUTONEG_ENABLE;
1197 cmd->autoneg = AUTONEG_DISABLE;
1199 cmd->phy_address = np->phy_addr;
1203 static int rio_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1205 struct netdev_private *np = netdev_priv(dev);
1206 netif_carrier_off(dev);
1207 if (cmd->autoneg == AUTONEG_ENABLE) {
1217 if (np->speed == 1000) {
1218 ethtool_cmd_speed_set(cmd, SPEED_100);
1219 cmd->duplex = DUPLEX_FULL;
1220 printk("Warning!! Can't disable Auto negotiation in 1000Mbps, change to Manual 100Mbps, Full duplex.\n");
1222 switch (ethtool_cmd_speed(cmd)) {
1225 np->full_duplex = (cmd->duplex == DUPLEX_FULL);
1229 np->full_duplex = (cmd->duplex == DUPLEX_FULL);
1231 case SPEED_1000: /* not supported */
1240 static u32 rio_get_link(struct net_device *dev)
1242 struct netdev_private *np = netdev_priv(dev);
1243 return np->link_status;
1246 static const struct ethtool_ops ethtool_ops = {
1247 .get_drvinfo = rio_get_drvinfo,
1248 .get_settings = rio_get_settings,
1249 .set_settings = rio_set_settings,
1250 .get_link = rio_get_link,
1254 rio_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
1257 struct netdev_private *np = netdev_priv(dev);
1258 struct mii_ioctl_data *miidata = if_mii(rq);
1260 phy_addr = np->phy_addr;
1263 miidata->phy_id = phy_addr;
1266 miidata->val_out = mii_read (dev, phy_addr, miidata->reg_num);
1269 if (!capable(CAP_NET_ADMIN))
1271 mii_write (dev, phy_addr, miidata->reg_num, miidata->val_in);
1279 #define EEP_READ 0x0200
1280 #define EEP_BUSY 0x8000
1281 /* Read the EEPROM word */
1282 /* We use I/O instruction to read/write eeprom to avoid fail on some machines */
1283 static int read_eeprom(struct netdev_private *np, int eep_addr)
1285 void __iomem *ioaddr = np->eeprom_addr;
1288 dw16(EepromCtrl, EEP_READ | (eep_addr & 0xff));
1290 if (!(dr16(EepromCtrl) & EEP_BUSY))
1291 return dr16(EepromData);
1296 enum phy_ctrl_bits {
1297 MII_READ = 0x00, MII_CLK = 0x01, MII_DATA1 = 0x02, MII_WRITE = 0x04,
1301 #define mii_delay() dr8(PhyCtrl)
1303 mii_sendbit (struct net_device *dev, u32 data)
1305 struct netdev_private *np = netdev_priv(dev);
1306 void __iomem *ioaddr = np->ioaddr;
1308 data = ((data) ? MII_DATA1 : 0) | (dr8(PhyCtrl) & 0xf8) | MII_WRITE;
1311 dw8(PhyCtrl, data | MII_CLK);
1316 mii_getbit (struct net_device *dev)
1318 struct netdev_private *np = netdev_priv(dev);
1319 void __iomem *ioaddr = np->ioaddr;
1322 data = (dr8(PhyCtrl) & 0xf8) | MII_READ;
1325 dw8(PhyCtrl, data | MII_CLK);
1327 return (dr8(PhyCtrl) >> 1) & 1;
1331 mii_send_bits (struct net_device *dev, u32 data, int len)
1335 for (i = len - 1; i >= 0; i--) {
1336 mii_sendbit (dev, data & (1 << i));
1341 mii_read (struct net_device *dev, int phy_addr, int reg_num)
1348 mii_send_bits (dev, 0xffffffff, 32);
1349 /* ST(2), OP(2), ADDR(5), REG#(5), TA(2), Data(16) total 32 bits */
1350 /* ST,OP = 0110'b for read operation */
1351 cmd = (0x06 << 10 | phy_addr << 5 | reg_num);
1352 mii_send_bits (dev, cmd, 14);
1354 if (mii_getbit (dev))
1357 for (i = 0; i < 16; i++) {
1358 retval |= mii_getbit (dev);
1363 return (retval >> 1) & 0xffff;
1369 mii_write (struct net_device *dev, int phy_addr, int reg_num, u16 data)
1374 mii_send_bits (dev, 0xffffffff, 32);
1375 /* ST(2), OP(2), ADDR(5), REG#(5), TA(2), Data(16) total 32 bits */
1376 /* ST,OP,AAAAA,RRRRR,TA = 0101xxxxxxxxxx10'b = 0x5002 for write */
1377 cmd = (0x5002 << 16) | (phy_addr << 23) | (reg_num << 18) | data;
1378 mii_send_bits (dev, cmd, 32);
1384 mii_wait_link (struct net_device *dev, int wait)
1388 struct netdev_private *np;
1390 np = netdev_priv(dev);
1391 phy_addr = np->phy_addr;
1394 bmsr = mii_read (dev, phy_addr, MII_BMSR);
1395 if (bmsr & BMSR_LSTATUS)
1398 } while (--wait > 0);
1402 mii_get_media (struct net_device *dev)
1409 struct netdev_private *np;
1411 np = netdev_priv(dev);
1412 phy_addr = np->phy_addr;
1414 bmsr = mii_read (dev, phy_addr, MII_BMSR);
1415 if (np->an_enable) {
1416 if (!(bmsr & BMSR_ANEGCOMPLETE)) {
1417 /* Auto-Negotiation not completed */
1420 negotiate = mii_read (dev, phy_addr, MII_ADVERTISE) &
1421 mii_read (dev, phy_addr, MII_LPA);
1422 mscr = mii_read (dev, phy_addr, MII_CTRL1000);
1423 mssr = mii_read (dev, phy_addr, MII_STAT1000);
1424 if (mscr & ADVERTISE_1000FULL && mssr & LPA_1000FULL) {
1426 np->full_duplex = 1;
1427 printk (KERN_INFO "Auto 1000 Mbps, Full duplex\n");
1428 } else if (mscr & ADVERTISE_1000HALF && mssr & LPA_1000HALF) {
1430 np->full_duplex = 0;
1431 printk (KERN_INFO "Auto 1000 Mbps, Half duplex\n");
1432 } else if (negotiate & ADVERTISE_100FULL) {
1434 np->full_duplex = 1;
1435 printk (KERN_INFO "Auto 100 Mbps, Full duplex\n");
1436 } else if (negotiate & ADVERTISE_100HALF) {
1438 np->full_duplex = 0;
1439 printk (KERN_INFO "Auto 100 Mbps, Half duplex\n");
1440 } else if (negotiate & ADVERTISE_10FULL) {
1442 np->full_duplex = 1;
1443 printk (KERN_INFO "Auto 10 Mbps, Full duplex\n");
1444 } else if (negotiate & ADVERTISE_10HALF) {
1446 np->full_duplex = 0;
1447 printk (KERN_INFO "Auto 10 Mbps, Half duplex\n");
1449 if (negotiate & ADVERTISE_PAUSE_CAP) {
1452 } else if (negotiate & ADVERTISE_PAUSE_ASYM) {
1456 /* else tx_flow, rx_flow = user select */
1458 __u16 bmcr = mii_read (dev, phy_addr, MII_BMCR);
1459 switch (bmcr & (BMCR_SPEED100 | BMCR_SPEED1000)) {
1460 case BMCR_SPEED1000:
1461 printk (KERN_INFO "Operating at 1000 Mbps, ");
1464 printk (KERN_INFO "Operating at 100 Mbps, ");
1467 printk (KERN_INFO "Operating at 10 Mbps, ");
1469 if (bmcr & BMCR_FULLDPLX) {
1470 printk (KERN_CONT "Full duplex\n");
1472 printk (KERN_CONT "Half duplex\n");
1476 printk(KERN_INFO "Enable Tx Flow Control\n");
1478 printk(KERN_INFO "Disable Tx Flow Control\n");
1480 printk(KERN_INFO "Enable Rx Flow Control\n");
1482 printk(KERN_INFO "Disable Rx Flow Control\n");
1488 mii_set_media (struct net_device *dev)
1495 struct netdev_private *np;
1496 np = netdev_priv(dev);
1497 phy_addr = np->phy_addr;
1499 /* Does user set speed? */
1500 if (np->an_enable) {
1501 /* Advertise capabilities */
1502 bmsr = mii_read (dev, phy_addr, MII_BMSR);
1503 anar = mii_read (dev, phy_addr, MII_ADVERTISE) &
1504 ~(ADVERTISE_100FULL | ADVERTISE_10FULL |
1505 ADVERTISE_100HALF | ADVERTISE_10HALF |
1506 ADVERTISE_100BASE4);
1507 if (bmsr & BMSR_100FULL)
1508 anar |= ADVERTISE_100FULL;
1509 if (bmsr & BMSR_100HALF)
1510 anar |= ADVERTISE_100HALF;
1511 if (bmsr & BMSR_100BASE4)
1512 anar |= ADVERTISE_100BASE4;
1513 if (bmsr & BMSR_10FULL)
1514 anar |= ADVERTISE_10FULL;
1515 if (bmsr & BMSR_10HALF)
1516 anar |= ADVERTISE_10HALF;
1517 anar |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
1518 mii_write (dev, phy_addr, MII_ADVERTISE, anar);
1520 /* Enable Auto crossover */
1521 pscr = mii_read (dev, phy_addr, MII_PHY_SCR);
1522 pscr |= 3 << 5; /* 11'b */
1523 mii_write (dev, phy_addr, MII_PHY_SCR, pscr);
1525 /* Soft reset PHY */
1526 mii_write (dev, phy_addr, MII_BMCR, BMCR_RESET);
1527 bmcr = BMCR_ANENABLE | BMCR_ANRESTART | BMCR_RESET;
1528 mii_write (dev, phy_addr, MII_BMCR, bmcr);
1531 /* Force speed setting */
1532 /* 1) Disable Auto crossover */
1533 pscr = mii_read (dev, phy_addr, MII_PHY_SCR);
1535 mii_write (dev, phy_addr, MII_PHY_SCR, pscr);
1538 bmcr = mii_read (dev, phy_addr, MII_BMCR);
1540 mii_write (dev, phy_addr, MII_BMCR, bmcr);
1543 bmcr = 0x1940; /* must be 0x1940 */
1544 mii_write (dev, phy_addr, MII_BMCR, bmcr);
1545 mdelay (100); /* wait a certain time */
1547 /* 4) Advertise nothing */
1548 mii_write (dev, phy_addr, MII_ADVERTISE, 0);
1550 /* 5) Set media and Power Up */
1552 if (np->speed == 100) {
1553 bmcr |= BMCR_SPEED100;
1554 printk (KERN_INFO "Manual 100 Mbps, ");
1555 } else if (np->speed == 10) {
1556 printk (KERN_INFO "Manual 10 Mbps, ");
1558 if (np->full_duplex) {
1559 bmcr |= BMCR_FULLDPLX;
1560 printk (KERN_CONT "Full duplex\n");
1562 printk (KERN_CONT "Half duplex\n");
1565 /* Set 1000BaseT Master/Slave setting */
1566 mscr = mii_read (dev, phy_addr, MII_CTRL1000);
1567 mscr |= MII_MSCR_CFG_ENABLE;
1568 mscr &= ~MII_MSCR_CFG_VALUE = 0;
1570 mii_write (dev, phy_addr, MII_BMCR, bmcr);
1577 mii_get_media_pcs (struct net_device *dev)
1582 struct netdev_private *np;
1584 np = netdev_priv(dev);
1585 phy_addr = np->phy_addr;
1587 bmsr = mii_read (dev, phy_addr, PCS_BMSR);
1588 if (np->an_enable) {
1589 if (!(bmsr & BMSR_ANEGCOMPLETE)) {
1590 /* Auto-Negotiation not completed */
1593 negotiate = mii_read (dev, phy_addr, PCS_ANAR) &
1594 mii_read (dev, phy_addr, PCS_ANLPAR);
1596 if (negotiate & PCS_ANAR_FULL_DUPLEX) {
1597 printk (KERN_INFO "Auto 1000 Mbps, Full duplex\n");
1598 np->full_duplex = 1;
1600 printk (KERN_INFO "Auto 1000 Mbps, half duplex\n");
1601 np->full_duplex = 0;
1603 if (negotiate & PCS_ANAR_PAUSE) {
1606 } else if (negotiate & PCS_ANAR_ASYMMETRIC) {
1610 /* else tx_flow, rx_flow = user select */
1612 __u16 bmcr = mii_read (dev, phy_addr, PCS_BMCR);
1613 printk (KERN_INFO "Operating at 1000 Mbps, ");
1614 if (bmcr & BMCR_FULLDPLX) {
1615 printk (KERN_CONT "Full duplex\n");
1617 printk (KERN_CONT "Half duplex\n");
1621 printk(KERN_INFO "Enable Tx Flow Control\n");
1623 printk(KERN_INFO "Disable Tx Flow Control\n");
1625 printk(KERN_INFO "Enable Rx Flow Control\n");
1627 printk(KERN_INFO "Disable Rx Flow Control\n");
1633 mii_set_media_pcs (struct net_device *dev)
1639 struct netdev_private *np;
1640 np = netdev_priv(dev);
1641 phy_addr = np->phy_addr;
1643 /* Auto-Negotiation? */
1644 if (np->an_enable) {
1645 /* Advertise capabilities */
1646 esr = mii_read (dev, phy_addr, PCS_ESR);
1647 anar = mii_read (dev, phy_addr, MII_ADVERTISE) &
1648 ~PCS_ANAR_HALF_DUPLEX &
1649 ~PCS_ANAR_FULL_DUPLEX;
1650 if (esr & (MII_ESR_1000BT_HD | MII_ESR_1000BX_HD))
1651 anar |= PCS_ANAR_HALF_DUPLEX;
1652 if (esr & (MII_ESR_1000BT_FD | MII_ESR_1000BX_FD))
1653 anar |= PCS_ANAR_FULL_DUPLEX;
1654 anar |= PCS_ANAR_PAUSE | PCS_ANAR_ASYMMETRIC;
1655 mii_write (dev, phy_addr, MII_ADVERTISE, anar);
1657 /* Soft reset PHY */
1658 mii_write (dev, phy_addr, MII_BMCR, BMCR_RESET);
1659 bmcr = BMCR_ANENABLE | BMCR_ANRESTART | BMCR_RESET;
1660 mii_write (dev, phy_addr, MII_BMCR, bmcr);
1663 /* Force speed setting */
1666 mii_write (dev, phy_addr, MII_BMCR, bmcr);
1668 if (np->full_duplex) {
1669 bmcr = BMCR_FULLDPLX;
1670 printk (KERN_INFO "Manual full duplex\n");
1673 printk (KERN_INFO "Manual half duplex\n");
1675 mii_write (dev, phy_addr, MII_BMCR, bmcr);
1678 /* Advertise nothing */
1679 mii_write (dev, phy_addr, MII_ADVERTISE, 0);
1686 rio_close (struct net_device *dev)
1688 struct netdev_private *np = netdev_priv(dev);
1689 void __iomem *ioaddr = np->ioaddr;
1691 struct pci_dev *pdev = np->pdev;
1692 struct sk_buff *skb;
1695 netif_stop_queue (dev);
1697 /* Disable interrupts */
1700 /* Stop Tx and Rx logics */
1701 dw32(MACCtrl, TxDisable | RxDisable | StatsDisable);
1703 free_irq(pdev->irq, dev);
1704 del_timer_sync (&np->timer);
1706 /* Free all the skbuffs in the queue. */
1707 for (i = 0; i < RX_RING_SIZE; i++) {
1708 skb = np->rx_skbuff[i];
1710 pci_unmap_single(pdev, desc_to_dma(&np->rx_ring[i]),
1711 skb->len, PCI_DMA_FROMDEVICE);
1712 dev_kfree_skb (skb);
1713 np->rx_skbuff[i] = NULL;
1715 np->rx_ring[i].status = 0;
1716 np->rx_ring[i].fraginfo = 0;
1718 for (i = 0; i < TX_RING_SIZE; i++) {
1719 skb = np->tx_skbuff[i];
1721 pci_unmap_single(pdev, desc_to_dma(&np->tx_ring[i]),
1722 skb->len, PCI_DMA_TODEVICE);
1723 dev_kfree_skb (skb);
1724 np->tx_skbuff[i] = NULL;
1732 rio_remove1 (struct pci_dev *pdev)
1734 struct net_device *dev = pci_get_drvdata (pdev);
1737 struct netdev_private *np = netdev_priv(dev);
1739 unregister_netdev (dev);
1740 pci_free_consistent (pdev, RX_TOTAL_SIZE, np->rx_ring,
1742 pci_free_consistent (pdev, TX_TOTAL_SIZE, np->tx_ring,
1745 pci_iounmap(pdev, np->ioaddr);
1747 pci_iounmap(pdev, np->eeprom_addr);
1749 pci_release_regions (pdev);
1750 pci_disable_device (pdev);
1752 pci_set_drvdata (pdev, NULL);
1755 static struct pci_driver rio_driver = {
1757 .id_table = rio_pci_tbl,
1758 .probe = rio_probe1,
1759 .remove = rio_remove1,
1762 module_pci_driver(rio_driver);
1767 gcc -D__KERNEL__ -DMODULE -I/usr/src/linux/include -Wall -Wstrict-prototypes -O2 -c dl2k.c
1769 Read Documentation/networking/dl2k.txt for details.