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 static char version[] __devinitdata =
20 KERN_INFO DRV_NAME " " DRV_VERSION " " DRV_RELDATE "\n";
22 static int mtu[MAX_UNITS];
23 static int vlan[MAX_UNITS];
24 static int jumbo[MAX_UNITS];
25 static char *media[MAX_UNITS];
26 static int tx_flow=-1;
27 static int rx_flow=-1;
28 static int copy_thresh;
29 static int rx_coalesce=10; /* Rx frame count each interrupt */
30 static int rx_timeout=200; /* Rx DMA wait time in 640ns increments */
31 static int tx_coalesce=16; /* HW xmit count each TxDMAComplete */
34 MODULE_AUTHOR ("Edward Peng");
35 MODULE_DESCRIPTION ("D-Link DL2000-based Gigabit Ethernet Adapter");
36 MODULE_LICENSE("GPL");
37 module_param_array(mtu, int, NULL, 0);
38 module_param_array(media, charp, NULL, 0);
39 module_param_array(vlan, int, NULL, 0);
40 module_param_array(jumbo, int, NULL, 0);
41 module_param(tx_flow, int, 0);
42 module_param(rx_flow, int, 0);
43 module_param(copy_thresh, int, 0);
44 module_param(rx_coalesce, int, 0); /* Rx frame count each interrupt */
45 module_param(rx_timeout, int, 0); /* Rx DMA wait time in 64ns increments */
46 module_param(tx_coalesce, int, 0); /* HW xmit count each TxDMAComplete */
49 /* Enable the default interrupts */
50 #define DEFAULT_INTR (RxDMAComplete | HostError | IntRequested | TxDMAComplete| \
51 UpdateStats | LinkEvent)
53 writew(DEFAULT_INTR, ioaddr + IntEnable)
55 static const int max_intrloop = 50;
56 static const int multicast_filter_limit = 0x40;
58 static int rio_open (struct net_device *dev);
59 static void rio_timer (unsigned long data);
60 static void rio_tx_timeout (struct net_device *dev);
61 static void alloc_list (struct net_device *dev);
62 static int start_xmit (struct sk_buff *skb, struct net_device *dev);
63 static irqreturn_t rio_interrupt (int irq, void *dev_instance);
64 static void rio_free_tx (struct net_device *dev, int irq);
65 static void tx_error (struct net_device *dev, int tx_status);
66 static int receive_packet (struct net_device *dev);
67 static void rio_error (struct net_device *dev, int int_status);
68 static int change_mtu (struct net_device *dev, int new_mtu);
69 static void set_multicast (struct net_device *dev);
70 static struct net_device_stats *get_stats (struct net_device *dev);
71 static int clear_stats (struct net_device *dev);
72 static int rio_ioctl (struct net_device *dev, struct ifreq *rq, int cmd);
73 static int rio_close (struct net_device *dev);
74 static int find_miiphy (struct net_device *dev);
75 static int parse_eeprom (struct net_device *dev);
76 static int read_eeprom (long ioaddr, int eep_addr);
77 static int mii_wait_link (struct net_device *dev, int wait);
78 static int mii_set_media (struct net_device *dev);
79 static int mii_get_media (struct net_device *dev);
80 static int mii_set_media_pcs (struct net_device *dev);
81 static int mii_get_media_pcs (struct net_device *dev);
82 static int mii_read (struct net_device *dev, int phy_addr, int reg_num);
83 static int mii_write (struct net_device *dev, int phy_addr, int reg_num,
86 static const struct ethtool_ops ethtool_ops;
89 rio_probe1 (struct pci_dev *pdev, const struct pci_device_id *ent)
91 struct net_device *dev;
92 struct netdev_private *np;
94 int chip_idx = ent->driver_data;
97 static int version_printed;
101 if (!version_printed++)
102 printk ("%s", version);
104 err = pci_enable_device (pdev);
109 err = pci_request_regions (pdev, "dl2k");
111 goto err_out_disable;
113 pci_set_master (pdev);
114 dev = alloc_etherdev (sizeof (*np));
119 SET_NETDEV_DEV(dev, &pdev->dev);
122 ioaddr = pci_resource_start (pdev, 1);
123 ioaddr = (long) ioremap (ioaddr, RIO_IO_SIZE);
129 ioaddr = pci_resource_start (pdev, 0);
131 dev->base_addr = ioaddr;
133 np = netdev_priv(dev);
134 np->chip_id = chip_idx;
136 spin_lock_init (&np->tx_lock);
137 spin_lock_init (&np->rx_lock);
139 /* Parse manual configuration */
142 if (card_idx < MAX_UNITS) {
143 if (media[card_idx] != NULL) {
145 if (strcmp (media[card_idx], "auto") == 0 ||
146 strcmp (media[card_idx], "autosense") == 0 ||
147 strcmp (media[card_idx], "0") == 0 ) {
149 } else if (strcmp (media[card_idx], "100mbps_fd") == 0 ||
150 strcmp (media[card_idx], "4") == 0) {
153 } else if (strcmp (media[card_idx], "100mbps_hd") == 0
154 || strcmp (media[card_idx], "3") == 0) {
157 } else if (strcmp (media[card_idx], "10mbps_fd") == 0 ||
158 strcmp (media[card_idx], "2") == 0) {
161 } else if (strcmp (media[card_idx], "10mbps_hd") == 0 ||
162 strcmp (media[card_idx], "1") == 0) {
165 } else if (strcmp (media[card_idx], "1000mbps_fd") == 0 ||
166 strcmp (media[card_idx], "6") == 0) {
169 } else if (strcmp (media[card_idx], "1000mbps_hd") == 0 ||
170 strcmp (media[card_idx], "5") == 0) {
177 if (jumbo[card_idx] != 0) {
179 dev->mtu = MAX_JUMBO;
182 if (mtu[card_idx] > 0 && mtu[card_idx] < PACKET_SIZE)
183 dev->mtu = mtu[card_idx];
185 np->vlan = (vlan[card_idx] > 0 && vlan[card_idx] < 4096) ?
187 if (rx_coalesce > 0 && rx_timeout > 0) {
188 np->rx_coalesce = rx_coalesce;
189 np->rx_timeout = rx_timeout;
192 np->tx_flow = (tx_flow == 0) ? 0 : 1;
193 np->rx_flow = (rx_flow == 0) ? 0 : 1;
197 else if (tx_coalesce > TX_RING_SIZE-1)
198 tx_coalesce = TX_RING_SIZE - 1;
200 dev->open = &rio_open;
201 dev->hard_start_xmit = &start_xmit;
202 dev->stop = &rio_close;
203 dev->get_stats = &get_stats;
204 dev->set_multicast_list = &set_multicast;
205 dev->do_ioctl = &rio_ioctl;
206 dev->tx_timeout = &rio_tx_timeout;
207 dev->watchdog_timeo = TX_TIMEOUT;
208 dev->change_mtu = &change_mtu;
209 SET_ETHTOOL_OPS(dev, ðtool_ops);
211 dev->features = NETIF_F_IP_CSUM;
213 pci_set_drvdata (pdev, dev);
215 ring_space = pci_alloc_consistent (pdev, TX_TOTAL_SIZE, &ring_dma);
217 goto err_out_iounmap;
218 np->tx_ring = (struct netdev_desc *) ring_space;
219 np->tx_ring_dma = ring_dma;
221 ring_space = pci_alloc_consistent (pdev, RX_TOTAL_SIZE, &ring_dma);
223 goto err_out_unmap_tx;
224 np->rx_ring = (struct netdev_desc *) ring_space;
225 np->rx_ring_dma = ring_dma;
227 /* Parse eeprom data */
230 /* Find PHY address */
231 err = find_miiphy (dev);
233 goto err_out_unmap_rx;
236 np->phy_media = (readw(ioaddr + ASICCtrl) & PhyMedia) ? 1 : 0;
238 /* Set media and reset PHY */
240 /* default Auto-Negotiation for fiber deivices */
241 if (np->an_enable == 2) {
244 mii_set_media_pcs (dev);
246 /* Auto-Negotiation is mandatory for 1000BASE-T,
247 IEEE 802.3ab Annex 28D page 14 */
248 if (np->speed == 1000)
253 err = register_netdev (dev);
255 goto err_out_unmap_rx;
259 printk (KERN_INFO "%s: %s, %02x:%02x:%02x:%02x:%02x:%02x, IRQ %d\n",
261 dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
262 dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5], irq);
264 printk(KERN_INFO "tx_coalesce:\t%d packets\n",
267 printk(KERN_INFO "rx_coalesce:\t%d packets\n"
268 KERN_INFO "rx_timeout: \t%d ns\n",
269 np->rx_coalesce, np->rx_timeout*640);
271 printk(KERN_INFO "vlan(id):\t%d\n", np->vlan);
275 pci_free_consistent (pdev, RX_TOTAL_SIZE, np->rx_ring, np->rx_ring_dma);
277 pci_free_consistent (pdev, TX_TOTAL_SIZE, np->tx_ring, np->tx_ring_dma);
280 iounmap ((void *) ioaddr);
287 pci_release_regions (pdev);
290 pci_disable_device (pdev);
295 find_miiphy (struct net_device *dev)
297 int i, phy_found = 0;
298 struct netdev_private *np;
300 np = netdev_priv(dev);
301 ioaddr = dev->base_addr;
304 for (i = 31; i >= 0; i--) {
305 int mii_status = mii_read (dev, i, 1);
306 if (mii_status != 0xffff && mii_status != 0x0000) {
312 printk (KERN_ERR "%s: No MII PHY found!\n", dev->name);
319 parse_eeprom (struct net_device *dev)
322 long ioaddr = dev->base_addr;
326 PSROM_t psrom = (PSROM_t) sromdata;
327 struct netdev_private *np = netdev_priv(dev);
332 ioaddr = pci_resource_start (np->pdev, 0);
335 for (i = 0; i < 128; i++) {
336 ((u16 *) sromdata)[i] = le16_to_cpu (read_eeprom (ioaddr, i));
339 ioaddr = dev->base_addr;
341 if (np->pdev->vendor == PCI_VENDOR_ID_DLINK) { /* D-Link Only */
343 crc = ~ether_crc_le (256 - 4, sromdata);
344 if (psrom->crc != crc) {
345 printk (KERN_ERR "%s: EEPROM data CRC error.\n",
351 /* Set MAC address */
352 for (i = 0; i < 6; i++)
353 dev->dev_addr[i] = psrom->mac_addr[i];
355 if (np->pdev->vendor != PCI_VENDOR_ID_DLINK) {
359 /* Parse Software Information Block */
361 psib = (u8 *) sromdata;
365 if ((cid == 0 && next == 0) || (cid == 0xff && next == 0xff)) {
366 printk (KERN_ERR "Cell data error\n");
370 case 0: /* Format version */
372 case 1: /* End of cell */
374 case 2: /* Duplex Polarity */
375 np->duplex_polarity = psib[i];
376 writeb (readb (ioaddr + PhyCtrl) | psib[i],
379 case 3: /* Wake Polarity */
380 np->wake_polarity = psib[i];
382 case 9: /* Adapter description */
383 j = (next - i > 255) ? 255 : next - i;
384 memcpy (np->name, &(psib[i]), j);
390 case 8: /* Reversed */
392 default: /* Unknown cell */
402 rio_open (struct net_device *dev)
404 struct netdev_private *np = netdev_priv(dev);
405 long ioaddr = dev->base_addr;
409 i = request_irq (dev->irq, &rio_interrupt, IRQF_SHARED, dev->name, dev);
413 /* Reset all logic functions */
414 writew (GlobalReset | DMAReset | FIFOReset | NetworkReset | HostReset,
415 ioaddr + ASICCtrl + 2);
418 /* DebugCtrl bit 4, 5, 9 must set */
419 writel (readl (ioaddr + DebugCtrl) | 0x0230, ioaddr + DebugCtrl);
423 writew (MAX_JUMBO+14, ioaddr + MaxFrameSize);
427 /* Get station address */
428 for (i = 0; i < 6; i++)
429 writeb (dev->dev_addr[i], ioaddr + StationAddr0 + i);
433 writel (np->rx_coalesce | np->rx_timeout << 16,
434 ioaddr + RxDMAIntCtrl);
436 /* Set RIO to poll every N*320nsec. */
437 writeb (0x20, ioaddr + RxDMAPollPeriod);
438 writeb (0xff, ioaddr + TxDMAPollPeriod);
439 writeb (0x30, ioaddr + RxDMABurstThresh);
440 writeb (0x30, ioaddr + RxDMAUrgentThresh);
441 writel (0x0007ffff, ioaddr + RmonStatMask);
442 /* clear statistics */
447 /* priority field in RxDMAIntCtrl */
448 writel (readl(ioaddr + RxDMAIntCtrl) | 0x7 << 10,
449 ioaddr + RxDMAIntCtrl);
451 writew (np->vlan, ioaddr + VLANId);
452 /* Length/Type should be 0x8100 */
453 writel (0x8100 << 16 | np->vlan, ioaddr + VLANTag);
454 /* Enable AutoVLANuntagging, but disable AutoVLANtagging.
455 VLAN information tagged by TFC' VID, CFI fields. */
456 writel (readl (ioaddr + MACCtrl) | AutoVLANuntagging,
460 init_timer (&np->timer);
461 np->timer.expires = jiffies + 1*HZ;
462 np->timer.data = (unsigned long) dev;
463 np->timer.function = &rio_timer;
464 add_timer (&np->timer);
467 writel (readl (ioaddr + MACCtrl) | StatsEnable | RxEnable | TxEnable,
471 macctrl |= (np->vlan) ? AutoVLANuntagging : 0;
472 macctrl |= (np->full_duplex) ? DuplexSelect : 0;
473 macctrl |= (np->tx_flow) ? TxFlowControlEnable : 0;
474 macctrl |= (np->rx_flow) ? RxFlowControlEnable : 0;
475 writew(macctrl, ioaddr + MACCtrl);
477 netif_start_queue (dev);
479 /* Enable default interrupts */
485 rio_timer (unsigned long data)
487 struct net_device *dev = (struct net_device *)data;
488 struct netdev_private *np = netdev_priv(dev);
490 int next_tick = 1*HZ;
493 spin_lock_irqsave(&np->rx_lock, flags);
494 /* Recover rx ring exhausted error */
495 if (np->cur_rx - np->old_rx >= RX_RING_SIZE) {
496 printk(KERN_INFO "Try to recover rx ring exhausted...\n");
497 /* Re-allocate skbuffs to fill the descriptor ring */
498 for (; np->cur_rx - np->old_rx > 0; np->old_rx++) {
500 entry = np->old_rx % RX_RING_SIZE;
501 /* Dropped packets don't need to re-allocate */
502 if (np->rx_skbuff[entry] == NULL) {
503 skb = dev_alloc_skb (np->rx_buf_sz);
505 np->rx_ring[entry].fraginfo = 0;
507 "%s: Still unable to re-allocate Rx skbuff.#%d\n",
511 np->rx_skbuff[entry] = skb;
512 /* 16 byte align the IP header */
513 skb_reserve (skb, 2);
514 np->rx_ring[entry].fraginfo =
515 cpu_to_le64 (pci_map_single
516 (np->pdev, skb->data, np->rx_buf_sz,
517 PCI_DMA_FROMDEVICE));
519 np->rx_ring[entry].fraginfo |=
520 cpu_to_le64 (np->rx_buf_sz) << 48;
521 np->rx_ring[entry].status = 0;
524 spin_unlock_irqrestore (&np->rx_lock, flags);
525 np->timer.expires = jiffies + next_tick;
526 add_timer(&np->timer);
530 rio_tx_timeout (struct net_device *dev)
532 long ioaddr = dev->base_addr;
534 printk (KERN_INFO "%s: Tx timed out (%4.4x), is buffer full?\n",
535 dev->name, readl (ioaddr + TxStatus));
538 dev->trans_start = jiffies;
541 /* allocate and initialize Tx and Rx descriptors */
543 alloc_list (struct net_device *dev)
545 struct netdev_private *np = netdev_priv(dev);
548 np->cur_rx = np->cur_tx = 0;
549 np->old_rx = np->old_tx = 0;
550 np->rx_buf_sz = (dev->mtu <= 1500 ? PACKET_SIZE : dev->mtu + 32);
552 /* Initialize Tx descriptors, TFDListPtr leaves in start_xmit(). */
553 for (i = 0; i < TX_RING_SIZE; i++) {
554 np->tx_skbuff[i] = NULL;
555 np->tx_ring[i].status = cpu_to_le64 (TFDDone);
556 np->tx_ring[i].next_desc = cpu_to_le64 (np->tx_ring_dma +
557 ((i+1)%TX_RING_SIZE) *
558 sizeof (struct netdev_desc));
561 /* Initialize Rx descriptors */
562 for (i = 0; i < RX_RING_SIZE; i++) {
563 np->rx_ring[i].next_desc = cpu_to_le64 (np->rx_ring_dma +
564 ((i + 1) % RX_RING_SIZE) *
565 sizeof (struct netdev_desc));
566 np->rx_ring[i].status = 0;
567 np->rx_ring[i].fraginfo = 0;
568 np->rx_skbuff[i] = NULL;
571 /* Allocate the rx buffers */
572 for (i = 0; i < RX_RING_SIZE; i++) {
573 /* Allocated fixed size of skbuff */
574 struct sk_buff *skb = dev_alloc_skb (np->rx_buf_sz);
575 np->rx_skbuff[i] = skb;
578 "%s: alloc_list: allocate Rx buffer error! ",
582 skb_reserve (skb, 2); /* 16 byte align the IP header. */
583 /* Rubicon now supports 40 bits of addressing space. */
584 np->rx_ring[i].fraginfo =
585 cpu_to_le64 ( pci_map_single (
586 np->pdev, skb->data, np->rx_buf_sz,
587 PCI_DMA_FROMDEVICE));
588 np->rx_ring[i].fraginfo |= cpu_to_le64 (np->rx_buf_sz) << 48;
592 writel (cpu_to_le32 (np->rx_ring_dma), dev->base_addr + RFDListPtr0);
593 writel (0, dev->base_addr + RFDListPtr1);
599 start_xmit (struct sk_buff *skb, struct net_device *dev)
601 struct netdev_private *np = netdev_priv(dev);
602 struct netdev_desc *txdesc;
605 u64 tfc_vlan_tag = 0;
607 if (np->link_status == 0) { /* Link Down */
611 ioaddr = dev->base_addr;
612 entry = np->cur_tx % TX_RING_SIZE;
613 np->tx_skbuff[entry] = skb;
614 txdesc = &np->tx_ring[entry];
617 if (skb->ip_summed == CHECKSUM_PARTIAL) {
619 cpu_to_le64 (TCPChecksumEnable | UDPChecksumEnable |
625 cpu_to_le64 (VLANTagInsert) |
626 (cpu_to_le64 (np->vlan) << 32) |
627 (cpu_to_le64 (skb->priority) << 45);
629 txdesc->fraginfo = cpu_to_le64 (pci_map_single (np->pdev, skb->data,
632 txdesc->fraginfo |= cpu_to_le64 (skb->len) << 48;
634 /* DL2K bug: DMA fails to get next descriptor ptr in 10Mbps mode
635 * Work around: Always use 1 descriptor in 10Mbps mode */
636 if (entry % np->tx_coalesce == 0 || np->speed == 10)
637 txdesc->status = cpu_to_le64 (entry | tfc_vlan_tag |
640 (1 << FragCountShift));
642 txdesc->status = cpu_to_le64 (entry | tfc_vlan_tag |
644 (1 << FragCountShift));
647 writel (readl (ioaddr + DMACtrl) | 0x00001000, ioaddr + DMACtrl);
649 writel(10000, ioaddr + CountDown);
650 np->cur_tx = (np->cur_tx + 1) % TX_RING_SIZE;
651 if ((np->cur_tx - np->old_tx + TX_RING_SIZE) % TX_RING_SIZE
652 < TX_QUEUE_LEN - 1 && np->speed != 10) {
654 } else if (!netif_queue_stopped(dev)) {
655 netif_stop_queue (dev);
658 /* The first TFDListPtr */
659 if (readl (dev->base_addr + TFDListPtr0) == 0) {
660 writel (np->tx_ring_dma + entry * sizeof (struct netdev_desc),
661 dev->base_addr + TFDListPtr0);
662 writel (0, dev->base_addr + TFDListPtr1);
665 /* NETDEV WATCHDOG timer */
666 dev->trans_start = jiffies;
671 rio_interrupt (int irq, void *dev_instance)
673 struct net_device *dev = dev_instance;
674 struct netdev_private *np;
677 int cnt = max_intrloop;
680 ioaddr = dev->base_addr;
681 np = netdev_priv(dev);
683 int_status = readw (ioaddr + IntStatus);
684 writew (int_status, ioaddr + IntStatus);
685 int_status &= DEFAULT_INTR;
686 if (int_status == 0 || --cnt < 0)
689 /* Processing received packets */
690 if (int_status & RxDMAComplete)
691 receive_packet (dev);
692 /* TxDMAComplete interrupt */
693 if ((int_status & (TxDMAComplete|IntRequested))) {
695 tx_status = readl (ioaddr + TxStatus);
696 if (tx_status & 0x01)
697 tx_error (dev, tx_status);
698 /* Free used tx skbuffs */
699 rio_free_tx (dev, 1);
702 /* Handle uncommon events */
704 (HostError | LinkEvent | UpdateStats))
705 rio_error (dev, int_status);
707 if (np->cur_tx != np->old_tx)
708 writel (100, ioaddr + CountDown);
709 return IRQ_RETVAL(handled);
713 rio_free_tx (struct net_device *dev, int irq)
715 struct netdev_private *np = netdev_priv(dev);
716 int entry = np->old_tx % TX_RING_SIZE;
718 unsigned long flag = 0;
721 spin_lock(&np->tx_lock);
723 spin_lock_irqsave(&np->tx_lock, flag);
725 /* Free used tx skbuffs */
726 while (entry != np->cur_tx) {
729 if (!(np->tx_ring[entry].status & TFDDone))
731 skb = np->tx_skbuff[entry];
732 pci_unmap_single (np->pdev,
733 np->tx_ring[entry].fraginfo & DMA_48BIT_MASK,
734 skb->len, PCI_DMA_TODEVICE);
736 dev_kfree_skb_irq (skb);
740 np->tx_skbuff[entry] = NULL;
741 entry = (entry + 1) % TX_RING_SIZE;
745 spin_unlock(&np->tx_lock);
747 spin_unlock_irqrestore(&np->tx_lock, flag);
750 /* If the ring is no longer full, clear tx_full and
751 call netif_wake_queue() */
753 if (netif_queue_stopped(dev) &&
754 ((np->cur_tx - np->old_tx + TX_RING_SIZE) % TX_RING_SIZE
755 < TX_QUEUE_LEN - 1 || np->speed == 10)) {
756 netif_wake_queue (dev);
761 tx_error (struct net_device *dev, int tx_status)
763 struct netdev_private *np;
764 long ioaddr = dev->base_addr;
768 np = netdev_priv(dev);
770 frame_id = (tx_status & 0xffff0000);
771 printk (KERN_ERR "%s: Transmit error, TxStatus %4.4x, FrameId %d.\n",
772 dev->name, tx_status, frame_id);
773 np->stats.tx_errors++;
774 /* Ttransmit Underrun */
775 if (tx_status & 0x10) {
776 np->stats.tx_fifo_errors++;
777 writew (readw (ioaddr + TxStartThresh) + 0x10,
778 ioaddr + TxStartThresh);
779 /* Transmit Underrun need to set TxReset, DMARest, FIFOReset */
780 writew (TxReset | DMAReset | FIFOReset | NetworkReset,
781 ioaddr + ASICCtrl + 2);
782 /* Wait for ResetBusy bit clear */
783 for (i = 50; i > 0; i--) {
784 if ((readw (ioaddr + ASICCtrl + 2) & ResetBusy) == 0)
788 rio_free_tx (dev, 1);
789 /* Reset TFDListPtr */
790 writel (np->tx_ring_dma +
791 np->old_tx * sizeof (struct netdev_desc),
792 dev->base_addr + TFDListPtr0);
793 writel (0, dev->base_addr + TFDListPtr1);
795 /* Let TxStartThresh stay default value */
798 if (tx_status & 0x04) {
799 np->stats.tx_fifo_errors++;
800 /* TxReset and clear FIFO */
801 writew (TxReset | FIFOReset, ioaddr + ASICCtrl + 2);
802 /* Wait reset done */
803 for (i = 50; i > 0; i--) {
804 if ((readw (ioaddr + ASICCtrl + 2) & ResetBusy) == 0)
808 /* Let TxStartThresh stay default value */
810 /* Maximum Collisions */
812 if (tx_status & 0x08)
813 np->stats.collisions16++;
815 if (tx_status & 0x08)
816 np->stats.collisions++;
819 writel (readw (dev->base_addr + MACCtrl) | TxEnable, ioaddr + MACCtrl);
823 receive_packet (struct net_device *dev)
825 struct netdev_private *np = netdev_priv(dev);
826 int entry = np->cur_rx % RX_RING_SIZE;
829 /* If RFDDone, FrameStart and FrameEnd set, there is a new packet in. */
831 struct netdev_desc *desc = &np->rx_ring[entry];
835 if (!(desc->status & RFDDone) ||
836 !(desc->status & FrameStart) || !(desc->status & FrameEnd))
839 /* Chip omits the CRC. */
840 pkt_len = le64_to_cpu (desc->status & 0xffff);
841 frame_status = le64_to_cpu (desc->status);
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,
861 desc->fraginfo & DMA_48BIT_MASK,
864 skb_put (skb = np->rx_skbuff[entry], pkt_len);
865 np->rx_skbuff[entry] = NULL;
866 } else if ((skb = dev_alloc_skb (pkt_len + 2)) != NULL) {
867 pci_dma_sync_single_for_cpu(np->pdev,
872 /* 16 byte align the IP header */
873 skb_reserve (skb, 2);
874 skb_copy_to_linear_data (skb,
875 np->rx_skbuff[entry]->data,
877 skb_put (skb, pkt_len);
878 pci_dma_sync_single_for_device(np->pdev,
884 skb->protocol = eth_type_trans (skb, dev);
886 /* Checksum done by hw, but csum value unavailable. */
887 if (np->pdev->pci_rev_id >= 0x0c &&
888 !(frame_status & (TCPError | UDPError | IPError))) {
889 skb->ip_summed = CHECKSUM_UNNECESSARY;
893 dev->last_rx = jiffies;
895 entry = (entry + 1) % RX_RING_SIZE;
897 spin_lock(&np->rx_lock);
899 /* Re-allocate skbuffs to fill the descriptor ring */
901 while (entry != np->cur_rx) {
903 /* Dropped packets don't need to re-allocate */
904 if (np->rx_skbuff[entry] == NULL) {
905 skb = dev_alloc_skb (np->rx_buf_sz);
907 np->rx_ring[entry].fraginfo = 0;
909 "%s: receive_packet: "
910 "Unable to re-allocate Rx skbuff.#%d\n",
914 np->rx_skbuff[entry] = skb;
915 /* 16 byte align the IP header */
916 skb_reserve (skb, 2);
917 np->rx_ring[entry].fraginfo =
918 cpu_to_le64 (pci_map_single
919 (np->pdev, skb->data, np->rx_buf_sz,
920 PCI_DMA_FROMDEVICE));
922 np->rx_ring[entry].fraginfo |=
923 cpu_to_le64 (np->rx_buf_sz) << 48;
924 np->rx_ring[entry].status = 0;
925 entry = (entry + 1) % RX_RING_SIZE;
928 spin_unlock(&np->rx_lock);
933 rio_error (struct net_device *dev, int int_status)
935 long ioaddr = dev->base_addr;
936 struct netdev_private *np = netdev_priv(dev);
939 /* Link change event */
940 if (int_status & LinkEvent) {
941 if (mii_wait_link (dev, 10) == 0) {
942 printk (KERN_INFO "%s: Link up\n", dev->name);
944 mii_get_media_pcs (dev);
947 if (np->speed == 1000)
948 np->tx_coalesce = tx_coalesce;
952 macctrl |= (np->vlan) ? AutoVLANuntagging : 0;
953 macctrl |= (np->full_duplex) ? DuplexSelect : 0;
954 macctrl |= (np->tx_flow) ?
955 TxFlowControlEnable : 0;
956 macctrl |= (np->rx_flow) ?
957 RxFlowControlEnable : 0;
958 writew(macctrl, ioaddr + MACCtrl);
960 netif_carrier_on(dev);
962 printk (KERN_INFO "%s: Link off\n", dev->name);
964 netif_carrier_off(dev);
968 /* UpdateStats statistics registers */
969 if (int_status & UpdateStats) {
973 /* PCI Error, a catastronphic error related to the bus interface
974 occurs, set GlobalReset and HostReset to reset. */
975 if (int_status & HostError) {
976 printk (KERN_ERR "%s: HostError! IntStatus %4.4x.\n",
977 dev->name, int_status);
978 writew (GlobalReset | HostReset, ioaddr + ASICCtrl + 2);
983 static struct net_device_stats *
984 get_stats (struct net_device *dev)
986 long ioaddr = dev->base_addr;
987 struct netdev_private *np = netdev_priv(dev);
991 unsigned int stat_reg;
993 /* All statistics registers need to be acknowledged,
994 else statistic overflow could cause problems */
996 np->stats.rx_packets += readl (ioaddr + FramesRcvOk);
997 np->stats.tx_packets += readl (ioaddr + FramesXmtOk);
998 np->stats.rx_bytes += readl (ioaddr + OctetRcvOk);
999 np->stats.tx_bytes += readl (ioaddr + OctetXmtOk);
1001 np->stats.multicast = readl (ioaddr + McstFramesRcvdOk);
1002 np->stats.collisions += readl (ioaddr + SingleColFrames)
1003 + readl (ioaddr + MultiColFrames);
1005 /* detailed tx errors */
1006 stat_reg = readw (ioaddr + FramesAbortXSColls);
1007 np->stats.tx_aborted_errors += stat_reg;
1008 np->stats.tx_errors += stat_reg;
1010 stat_reg = readw (ioaddr + CarrierSenseErrors);
1011 np->stats.tx_carrier_errors += stat_reg;
1012 np->stats.tx_errors += stat_reg;
1014 /* Clear all other statistic register. */
1015 readl (ioaddr + McstOctetXmtOk);
1016 readw (ioaddr + BcstFramesXmtdOk);
1017 readl (ioaddr + McstFramesXmtdOk);
1018 readw (ioaddr + BcstFramesRcvdOk);
1019 readw (ioaddr + MacControlFramesRcvd);
1020 readw (ioaddr + FrameTooLongErrors);
1021 readw (ioaddr + InRangeLengthErrors);
1022 readw (ioaddr + FramesCheckSeqErrors);
1023 readw (ioaddr + FramesLostRxErrors);
1024 readl (ioaddr + McstOctetXmtOk);
1025 readl (ioaddr + BcstOctetXmtOk);
1026 readl (ioaddr + McstFramesXmtdOk);
1027 readl (ioaddr + FramesWDeferredXmt);
1028 readl (ioaddr + LateCollisions);
1029 readw (ioaddr + BcstFramesXmtdOk);
1030 readw (ioaddr + MacControlFramesXmtd);
1031 readw (ioaddr + FramesWEXDeferal);
1034 for (i = 0x100; i <= 0x150; i += 4)
1037 readw (ioaddr + TxJumboFrames);
1038 readw (ioaddr + RxJumboFrames);
1039 readw (ioaddr + TCPCheckSumErrors);
1040 readw (ioaddr + UDPCheckSumErrors);
1041 readw (ioaddr + IPCheckSumErrors);
1046 clear_stats (struct net_device *dev)
1048 long ioaddr = dev->base_addr;
1053 /* All statistics registers need to be acknowledged,
1054 else statistic overflow could cause problems */
1055 readl (ioaddr + FramesRcvOk);
1056 readl (ioaddr + FramesXmtOk);
1057 readl (ioaddr + OctetRcvOk);
1058 readl (ioaddr + OctetXmtOk);
1060 readl (ioaddr + McstFramesRcvdOk);
1061 readl (ioaddr + SingleColFrames);
1062 readl (ioaddr + MultiColFrames);
1063 readl (ioaddr + LateCollisions);
1064 /* detailed rx errors */
1065 readw (ioaddr + FrameTooLongErrors);
1066 readw (ioaddr + InRangeLengthErrors);
1067 readw (ioaddr + FramesCheckSeqErrors);
1068 readw (ioaddr + FramesLostRxErrors);
1070 /* detailed tx errors */
1071 readw (ioaddr + FramesAbortXSColls);
1072 readw (ioaddr + CarrierSenseErrors);
1074 /* Clear all other statistic register. */
1075 readl (ioaddr + McstOctetXmtOk);
1076 readw (ioaddr + BcstFramesXmtdOk);
1077 readl (ioaddr + McstFramesXmtdOk);
1078 readw (ioaddr + BcstFramesRcvdOk);
1079 readw (ioaddr + MacControlFramesRcvd);
1080 readl (ioaddr + McstOctetXmtOk);
1081 readl (ioaddr + BcstOctetXmtOk);
1082 readl (ioaddr + McstFramesXmtdOk);
1083 readl (ioaddr + FramesWDeferredXmt);
1084 readw (ioaddr + BcstFramesXmtdOk);
1085 readw (ioaddr + MacControlFramesXmtd);
1086 readw (ioaddr + FramesWEXDeferal);
1088 for (i = 0x100; i <= 0x150; i += 4)
1091 readw (ioaddr + TxJumboFrames);
1092 readw (ioaddr + RxJumboFrames);
1093 readw (ioaddr + TCPCheckSumErrors);
1094 readw (ioaddr + UDPCheckSumErrors);
1095 readw (ioaddr + IPCheckSumErrors);
1101 change_mtu (struct net_device *dev, int new_mtu)
1103 struct netdev_private *np = netdev_priv(dev);
1104 int max = (np->jumbo) ? MAX_JUMBO : 1536;
1106 if ((new_mtu < 68) || (new_mtu > max)) {
1116 set_multicast (struct net_device *dev)
1118 long ioaddr = dev->base_addr;
1121 struct netdev_private *np = netdev_priv(dev);
1123 hash_table[0] = hash_table[1] = 0;
1124 /* RxFlowcontrol DA: 01-80-C2-00-00-01. Hash index=0x39 */
1125 hash_table[1] |= cpu_to_le32(0x02000000);
1126 if (dev->flags & IFF_PROMISC) {
1127 /* Receive all frames promiscuously. */
1128 rx_mode = ReceiveAllFrames;
1129 } else if ((dev->flags & IFF_ALLMULTI) ||
1130 (dev->mc_count > multicast_filter_limit)) {
1131 /* Receive broadcast and multicast frames */
1132 rx_mode = ReceiveBroadcast | ReceiveMulticast | ReceiveUnicast;
1133 } else if (dev->mc_count > 0) {
1135 struct dev_mc_list *mclist;
1136 /* Receive broadcast frames and multicast frames filtering
1139 ReceiveBroadcast | ReceiveMulticastHash | ReceiveUnicast;
1140 for (i=0, mclist = dev->mc_list; mclist && i < dev->mc_count;
1141 i++, mclist=mclist->next)
1144 int crc = ether_crc_le (ETH_ALEN, mclist->dmi_addr);
1145 /* The inverted high significant 6 bits of CRC are
1146 used as an index to hashtable */
1147 for (bit = 0; bit < 6; bit++)
1148 if (crc & (1 << (31 - bit)))
1149 index |= (1 << bit);
1150 hash_table[index / 32] |= (1 << (index % 32));
1153 rx_mode = ReceiveBroadcast | ReceiveUnicast;
1156 /* ReceiveVLANMatch field in ReceiveMode */
1157 rx_mode |= ReceiveVLANMatch;
1160 writel (hash_table[0], ioaddr + HashTable0);
1161 writel (hash_table[1], ioaddr + HashTable1);
1162 writew (rx_mode, ioaddr + ReceiveMode);
1165 static void rio_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1167 struct netdev_private *np = netdev_priv(dev);
1168 strcpy(info->driver, "dl2k");
1169 strcpy(info->version, DRV_VERSION);
1170 strcpy(info->bus_info, pci_name(np->pdev));
1173 static int rio_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1175 struct netdev_private *np = netdev_priv(dev);
1176 if (np->phy_media) {
1178 cmd->supported = SUPPORTED_Autoneg | SUPPORTED_FIBRE;
1179 cmd->advertising= ADVERTISED_Autoneg | ADVERTISED_FIBRE;
1180 cmd->port = PORT_FIBRE;
1181 cmd->transceiver = XCVR_INTERNAL;
1184 cmd->supported = SUPPORTED_10baseT_Half |
1185 SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half
1186 | SUPPORTED_100baseT_Full | SUPPORTED_1000baseT_Full |
1187 SUPPORTED_Autoneg | SUPPORTED_MII;
1188 cmd->advertising = ADVERTISED_10baseT_Half |
1189 ADVERTISED_10baseT_Full | ADVERTISED_100baseT_Half |
1190 ADVERTISED_100baseT_Full | ADVERTISED_1000baseT_Full|
1191 ADVERTISED_Autoneg | ADVERTISED_MII;
1192 cmd->port = PORT_MII;
1193 cmd->transceiver = XCVR_INTERNAL;
1195 if ( np->link_status ) {
1196 cmd->speed = np->speed;
1197 cmd->duplex = np->full_duplex ? DUPLEX_FULL : DUPLEX_HALF;
1203 cmd->autoneg = AUTONEG_ENABLE;
1205 cmd->autoneg = AUTONEG_DISABLE;
1207 cmd->phy_address = np->phy_addr;
1211 static int rio_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1213 struct netdev_private *np = netdev_priv(dev);
1214 netif_carrier_off(dev);
1215 if (cmd->autoneg == AUTONEG_ENABLE) {
1225 if (np->speed == 1000) {
1226 cmd->speed = SPEED_100;
1227 cmd->duplex = DUPLEX_FULL;
1228 printk("Warning!! Can't disable Auto negotiation in 1000Mbps, change to Manual 100Mbps, Full duplex.\n");
1230 switch(cmd->speed + cmd->duplex) {
1232 case SPEED_10 + DUPLEX_HALF:
1234 np->full_duplex = 0;
1237 case SPEED_10 + DUPLEX_FULL:
1239 np->full_duplex = 1;
1241 case SPEED_100 + DUPLEX_HALF:
1243 np->full_duplex = 0;
1245 case SPEED_100 + DUPLEX_FULL:
1247 np->full_duplex = 1;
1249 case SPEED_1000 + DUPLEX_HALF:/* not supported */
1250 case SPEED_1000 + DUPLEX_FULL:/* not supported */
1259 static u32 rio_get_link(struct net_device *dev)
1261 struct netdev_private *np = netdev_priv(dev);
1262 return np->link_status;
1265 static const struct ethtool_ops ethtool_ops = {
1266 .get_drvinfo = rio_get_drvinfo,
1267 .get_settings = rio_get_settings,
1268 .set_settings = rio_set_settings,
1269 .get_link = rio_get_link,
1273 rio_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
1276 struct netdev_private *np = netdev_priv(dev);
1277 struct mii_data *miidata = (struct mii_data *) &rq->ifr_ifru;
1279 struct netdev_desc *desc;
1282 phy_addr = np->phy_addr;
1284 case SIOCDEVPRIVATE:
1287 case SIOCDEVPRIVATE + 1:
1288 miidata->out_value = mii_read (dev, phy_addr, miidata->reg_num);
1290 case SIOCDEVPRIVATE + 2:
1291 mii_write (dev, phy_addr, miidata->reg_num, miidata->in_value);
1293 case SIOCDEVPRIVATE + 3:
1295 case SIOCDEVPRIVATE + 4:
1297 case SIOCDEVPRIVATE + 5:
1298 netif_stop_queue (dev);
1300 case SIOCDEVPRIVATE + 6:
1301 netif_wake_queue (dev);
1303 case SIOCDEVPRIVATE + 7:
1305 ("tx_full=%x cur_tx=%lx old_tx=%lx cur_rx=%lx old_rx=%lx\n",
1306 netif_queue_stopped(dev), np->cur_tx, np->old_tx, np->cur_rx,
1309 case SIOCDEVPRIVATE + 8:
1310 printk("TX ring:\n");
1311 for (i = 0; i < TX_RING_SIZE; i++) {
1312 desc = &np->tx_ring[i];
1314 ("%02x:cur:%08x next:%08x status:%08x frag1:%08x frag0:%08x",
1316 (u32) (np->tx_ring_dma + i * sizeof (*desc)),
1317 (u32) desc->next_desc,
1318 (u32) desc->status, (u32) (desc->fraginfo >> 32),
1319 (u32) desc->fraginfo);
1331 #define EEP_READ 0x0200
1332 #define EEP_BUSY 0x8000
1333 /* Read the EEPROM word */
1334 /* We use I/O instruction to read/write eeprom to avoid fail on some machines */
1336 read_eeprom (long ioaddr, int eep_addr)
1339 outw (EEP_READ | (eep_addr & 0xff), ioaddr + EepromCtrl);
1341 if (!(inw (ioaddr + EepromCtrl) & EEP_BUSY)) {
1342 return inw (ioaddr + EepromData);
1348 enum phy_ctrl_bits {
1349 MII_READ = 0x00, MII_CLK = 0x01, MII_DATA1 = 0x02, MII_WRITE = 0x04,
1353 #define mii_delay() readb(ioaddr)
1355 mii_sendbit (struct net_device *dev, u32 data)
1357 long ioaddr = dev->base_addr + PhyCtrl;
1358 data = (data) ? MII_DATA1 : 0;
1360 data |= (readb (ioaddr) & 0xf8) | MII_WRITE;
1361 writeb (data, ioaddr);
1363 writeb (data | MII_CLK, ioaddr);
1368 mii_getbit (struct net_device *dev)
1370 long ioaddr = dev->base_addr + PhyCtrl;
1373 data = (readb (ioaddr) & 0xf8) | MII_READ;
1374 writeb (data, ioaddr);
1376 writeb (data | MII_CLK, ioaddr);
1378 return ((readb (ioaddr) >> 1) & 1);
1382 mii_send_bits (struct net_device *dev, u32 data, int len)
1385 for (i = len - 1; i >= 0; i--) {
1386 mii_sendbit (dev, data & (1 << i));
1391 mii_read (struct net_device *dev, int phy_addr, int reg_num)
1398 mii_send_bits (dev, 0xffffffff, 32);
1399 /* ST(2), OP(2), ADDR(5), REG#(5), TA(2), Data(16) total 32 bits */
1400 /* ST,OP = 0110'b for read operation */
1401 cmd = (0x06 << 10 | phy_addr << 5 | reg_num);
1402 mii_send_bits (dev, cmd, 14);
1404 if (mii_getbit (dev))
1407 for (i = 0; i < 16; i++) {
1408 retval |= mii_getbit (dev);
1413 return (retval >> 1) & 0xffff;
1419 mii_write (struct net_device *dev, int phy_addr, int reg_num, u16 data)
1424 mii_send_bits (dev, 0xffffffff, 32);
1425 /* ST(2), OP(2), ADDR(5), REG#(5), TA(2), Data(16) total 32 bits */
1426 /* ST,OP,AAAAA,RRRRR,TA = 0101xxxxxxxxxx10'b = 0x5002 for write */
1427 cmd = (0x5002 << 16) | (phy_addr << 23) | (reg_num << 18) | data;
1428 mii_send_bits (dev, cmd, 32);
1434 mii_wait_link (struct net_device *dev, int wait)
1438 struct netdev_private *np;
1440 np = netdev_priv(dev);
1441 phy_addr = np->phy_addr;
1444 bmsr.image = mii_read (dev, phy_addr, MII_BMSR);
1445 if (bmsr.bits.link_status)
1448 } while (--wait > 0);
1452 mii_get_media (struct net_device *dev)
1460 struct netdev_private *np;
1462 np = netdev_priv(dev);
1463 phy_addr = np->phy_addr;
1465 bmsr.image = mii_read (dev, phy_addr, MII_BMSR);
1466 if (np->an_enable) {
1467 if (!bmsr.bits.an_complete) {
1468 /* Auto-Negotiation not completed */
1471 negotiate.image = mii_read (dev, phy_addr, MII_ANAR) &
1472 mii_read (dev, phy_addr, MII_ANLPAR);
1473 mscr.image = mii_read (dev, phy_addr, MII_MSCR);
1474 mssr.image = mii_read (dev, phy_addr, MII_MSSR);
1475 if (mscr.bits.media_1000BT_FD & mssr.bits.lp_1000BT_FD) {
1477 np->full_duplex = 1;
1478 printk (KERN_INFO "Auto 1000 Mbps, Full duplex\n");
1479 } else if (mscr.bits.media_1000BT_HD & mssr.bits.lp_1000BT_HD) {
1481 np->full_duplex = 0;
1482 printk (KERN_INFO "Auto 1000 Mbps, Half duplex\n");
1483 } else if (negotiate.bits.media_100BX_FD) {
1485 np->full_duplex = 1;
1486 printk (KERN_INFO "Auto 100 Mbps, Full duplex\n");
1487 } else if (negotiate.bits.media_100BX_HD) {
1489 np->full_duplex = 0;
1490 printk (KERN_INFO "Auto 100 Mbps, Half duplex\n");
1491 } else if (negotiate.bits.media_10BT_FD) {
1493 np->full_duplex = 1;
1494 printk (KERN_INFO "Auto 10 Mbps, Full duplex\n");
1495 } else if (negotiate.bits.media_10BT_HD) {
1497 np->full_duplex = 0;
1498 printk (KERN_INFO "Auto 10 Mbps, Half duplex\n");
1500 if (negotiate.bits.pause) {
1503 } else if (negotiate.bits.asymmetric) {
1507 /* else tx_flow, rx_flow = user select */
1509 bmcr.image = mii_read (dev, phy_addr, MII_BMCR);
1510 if (bmcr.bits.speed100 == 1 && bmcr.bits.speed1000 == 0) {
1511 printk (KERN_INFO "Operating at 100 Mbps, ");
1512 } else if (bmcr.bits.speed100 == 0 && bmcr.bits.speed1000 == 0) {
1513 printk (KERN_INFO "Operating at 10 Mbps, ");
1514 } else if (bmcr.bits.speed100 == 0 && bmcr.bits.speed1000 == 1) {
1515 printk (KERN_INFO "Operating at 1000 Mbps, ");
1517 if (bmcr.bits.duplex_mode) {
1518 printk ("Full duplex\n");
1520 printk ("Half duplex\n");
1524 printk(KERN_INFO "Enable Tx Flow Control\n");
1526 printk(KERN_INFO "Disable Tx Flow Control\n");
1528 printk(KERN_INFO "Enable Rx Flow Control\n");
1530 printk(KERN_INFO "Disable Rx Flow Control\n");
1536 mii_set_media (struct net_device *dev)
1543 struct netdev_private *np;
1544 np = netdev_priv(dev);
1545 phy_addr = np->phy_addr;
1547 /* Does user set speed? */
1548 if (np->an_enable) {
1549 /* Advertise capabilities */
1550 bmsr.image = mii_read (dev, phy_addr, MII_BMSR);
1551 anar.image = mii_read (dev, phy_addr, MII_ANAR);
1552 anar.bits.media_100BX_FD = bmsr.bits.media_100BX_FD;
1553 anar.bits.media_100BX_HD = bmsr.bits.media_100BX_HD;
1554 anar.bits.media_100BT4 = bmsr.bits.media_100BT4;
1555 anar.bits.media_10BT_FD = bmsr.bits.media_10BT_FD;
1556 anar.bits.media_10BT_HD = bmsr.bits.media_10BT_HD;
1557 anar.bits.pause = 1;
1558 anar.bits.asymmetric = 1;
1559 mii_write (dev, phy_addr, MII_ANAR, anar.image);
1561 /* Enable Auto crossover */
1562 pscr.image = mii_read (dev, phy_addr, MII_PHY_SCR);
1563 pscr.bits.mdi_crossover_mode = 3; /* 11'b */
1564 mii_write (dev, phy_addr, MII_PHY_SCR, pscr.image);
1566 /* Soft reset PHY */
1567 mii_write (dev, phy_addr, MII_BMCR, MII_BMCR_RESET);
1569 bmcr.bits.an_enable = 1;
1570 bmcr.bits.restart_an = 1;
1571 bmcr.bits.reset = 1;
1572 mii_write (dev, phy_addr, MII_BMCR, bmcr.image);
1575 /* Force speed setting */
1576 /* 1) Disable Auto crossover */
1577 pscr.image = mii_read (dev, phy_addr, MII_PHY_SCR);
1578 pscr.bits.mdi_crossover_mode = 0;
1579 mii_write (dev, phy_addr, MII_PHY_SCR, pscr.image);
1582 bmcr.image = mii_read (dev, phy_addr, MII_BMCR);
1583 bmcr.bits.reset = 1;
1584 mii_write (dev, phy_addr, MII_BMCR, bmcr.image);
1587 bmcr.image = 0x1940; /* must be 0x1940 */
1588 mii_write (dev, phy_addr, MII_BMCR, bmcr.image);
1589 mdelay (100); /* wait a certain time */
1591 /* 4) Advertise nothing */
1592 mii_write (dev, phy_addr, MII_ANAR, 0);
1594 /* 5) Set media and Power Up */
1596 bmcr.bits.power_down = 1;
1597 if (np->speed == 100) {
1598 bmcr.bits.speed100 = 1;
1599 bmcr.bits.speed1000 = 0;
1600 printk (KERN_INFO "Manual 100 Mbps, ");
1601 } else if (np->speed == 10) {
1602 bmcr.bits.speed100 = 0;
1603 bmcr.bits.speed1000 = 0;
1604 printk (KERN_INFO "Manual 10 Mbps, ");
1606 if (np->full_duplex) {
1607 bmcr.bits.duplex_mode = 1;
1608 printk ("Full duplex\n");
1610 bmcr.bits.duplex_mode = 0;
1611 printk ("Half duplex\n");
1614 /* Set 1000BaseT Master/Slave setting */
1615 mscr.image = mii_read (dev, phy_addr, MII_MSCR);
1616 mscr.bits.cfg_enable = 1;
1617 mscr.bits.cfg_value = 0;
1619 mii_write (dev, phy_addr, MII_BMCR, bmcr.image);
1626 mii_get_media_pcs (struct net_device *dev)
1628 ANAR_PCS_t negotiate;
1632 struct netdev_private *np;
1634 np = netdev_priv(dev);
1635 phy_addr = np->phy_addr;
1637 bmsr.image = mii_read (dev, phy_addr, PCS_BMSR);
1638 if (np->an_enable) {
1639 if (!bmsr.bits.an_complete) {
1640 /* Auto-Negotiation not completed */
1643 negotiate.image = mii_read (dev, phy_addr, PCS_ANAR) &
1644 mii_read (dev, phy_addr, PCS_ANLPAR);
1646 if (negotiate.bits.full_duplex) {
1647 printk (KERN_INFO "Auto 1000 Mbps, Full duplex\n");
1648 np->full_duplex = 1;
1650 printk (KERN_INFO "Auto 1000 Mbps, half duplex\n");
1651 np->full_duplex = 0;
1653 if (negotiate.bits.pause) {
1656 } else if (negotiate.bits.asymmetric) {
1660 /* else tx_flow, rx_flow = user select */
1662 bmcr.image = mii_read (dev, phy_addr, PCS_BMCR);
1663 printk (KERN_INFO "Operating at 1000 Mbps, ");
1664 if (bmcr.bits.duplex_mode) {
1665 printk ("Full duplex\n");
1667 printk ("Half duplex\n");
1671 printk(KERN_INFO "Enable Tx Flow Control\n");
1673 printk(KERN_INFO "Disable Tx Flow Control\n");
1675 printk(KERN_INFO "Enable Rx Flow Control\n");
1677 printk(KERN_INFO "Disable Rx Flow Control\n");
1683 mii_set_media_pcs (struct net_device *dev)
1689 struct netdev_private *np;
1690 np = netdev_priv(dev);
1691 phy_addr = np->phy_addr;
1693 /* Auto-Negotiation? */
1694 if (np->an_enable) {
1695 /* Advertise capabilities */
1696 esr.image = mii_read (dev, phy_addr, PCS_ESR);
1697 anar.image = mii_read (dev, phy_addr, MII_ANAR);
1698 anar.bits.half_duplex =
1699 esr.bits.media_1000BT_HD | esr.bits.media_1000BX_HD;
1700 anar.bits.full_duplex =
1701 esr.bits.media_1000BT_FD | esr.bits.media_1000BX_FD;
1702 anar.bits.pause = 1;
1703 anar.bits.asymmetric = 1;
1704 mii_write (dev, phy_addr, MII_ANAR, anar.image);
1706 /* Soft reset PHY */
1707 mii_write (dev, phy_addr, MII_BMCR, MII_BMCR_RESET);
1709 bmcr.bits.an_enable = 1;
1710 bmcr.bits.restart_an = 1;
1711 bmcr.bits.reset = 1;
1712 mii_write (dev, phy_addr, MII_BMCR, bmcr.image);
1715 /* Force speed setting */
1718 bmcr.bits.reset = 1;
1719 mii_write (dev, phy_addr, MII_BMCR, bmcr.image);
1722 bmcr.bits.an_enable = 0;
1723 if (np->full_duplex) {
1724 bmcr.bits.duplex_mode = 1;
1725 printk (KERN_INFO "Manual full duplex\n");
1727 bmcr.bits.duplex_mode = 0;
1728 printk (KERN_INFO "Manual half duplex\n");
1730 mii_write (dev, phy_addr, MII_BMCR, bmcr.image);
1733 /* Advertise nothing */
1734 mii_write (dev, phy_addr, MII_ANAR, 0);
1741 rio_close (struct net_device *dev)
1743 long ioaddr = dev->base_addr;
1744 struct netdev_private *np = netdev_priv(dev);
1745 struct sk_buff *skb;
1748 netif_stop_queue (dev);
1750 /* Disable interrupts */
1751 writew (0, ioaddr + IntEnable);
1753 /* Stop Tx and Rx logics */
1754 writel (TxDisable | RxDisable | StatsDisable, ioaddr + MACCtrl);
1755 synchronize_irq (dev->irq);
1756 free_irq (dev->irq, dev);
1757 del_timer_sync (&np->timer);
1759 /* Free all the skbuffs in the queue. */
1760 for (i = 0; i < RX_RING_SIZE; i++) {
1761 np->rx_ring[i].status = 0;
1762 np->rx_ring[i].fraginfo = 0;
1763 skb = np->rx_skbuff[i];
1765 pci_unmap_single(np->pdev,
1766 np->rx_ring[i].fraginfo & DMA_48BIT_MASK,
1767 skb->len, PCI_DMA_FROMDEVICE);
1768 dev_kfree_skb (skb);
1769 np->rx_skbuff[i] = NULL;
1772 for (i = 0; i < TX_RING_SIZE; i++) {
1773 skb = np->tx_skbuff[i];
1775 pci_unmap_single(np->pdev,
1776 np->tx_ring[i].fraginfo & DMA_48BIT_MASK,
1777 skb->len, PCI_DMA_TODEVICE);
1778 dev_kfree_skb (skb);
1779 np->tx_skbuff[i] = NULL;
1786 static void __devexit
1787 rio_remove1 (struct pci_dev *pdev)
1789 struct net_device *dev = pci_get_drvdata (pdev);
1792 struct netdev_private *np = netdev_priv(dev);
1794 unregister_netdev (dev);
1795 pci_free_consistent (pdev, RX_TOTAL_SIZE, np->rx_ring,
1797 pci_free_consistent (pdev, TX_TOTAL_SIZE, np->tx_ring,
1800 iounmap ((char *) (dev->base_addr));
1803 pci_release_regions (pdev);
1804 pci_disable_device (pdev);
1806 pci_set_drvdata (pdev, NULL);
1809 static struct pci_driver rio_driver = {
1811 .id_table = rio_pci_tbl,
1812 .probe = rio_probe1,
1813 .remove = __devexit_p(rio_remove1),
1819 return pci_register_driver(&rio_driver);
1825 pci_unregister_driver (&rio_driver);
1828 module_init (rio_init);
1829 module_exit (rio_exit);
1835 gcc -D__KERNEL__ -DMODULE -I/usr/src/linux/include -Wall -Wstrict-prototypes -O2 -c dl2k.c
1837 Read Documentation/networking/dl2k.txt for details.