1 /* Silan SC92031 PCI Fast Ethernet Adapter driver
3 * Based on vendor drivers:
4 * Silan Fast Ethernet Netcard Driver:
5 * MODULE_AUTHOR ("gaoyonghong");
6 * MODULE_DESCRIPTION ("SILAN Fast Ethernet driver");
7 * MODULE_LICENSE("GPL");
8 * 8139D Fast Ethernet driver:
9 * (C) 2002 by gaoyonghong
10 * MODULE_AUTHOR ("gaoyonghong");
11 * MODULE_DESCRIPTION ("Rsltek 8139D PCI Fast Ethernet Adapter driver");
12 * MODULE_LICENSE("GPL");
13 * Both are almost identical and seem to be based on pci-skeleton.c
15 * Rewritten for 2.6 by Cesar Eduardo Barros
17 * A datasheet for this chip can be found at
18 * http://www.silan.com.cn/english/products/pdf/SC92031AY.pdf
21 /* Note about set_mac_address: I don't know how to change the hardware
22 * matching, so you need to enable IFF_PROMISC when using it.
25 #include <linux/module.h>
26 #include <linux/kernel.h>
27 #include <linux/delay.h>
28 #include <linux/pci.h>
29 #include <linux/dma-mapping.h>
30 #include <linux/netdevice.h>
31 #include <linux/etherdevice.h>
32 #include <linux/ethtool.h>
33 #include <linux/crc32.h>
37 #define SC92031_NAME "sc92031"
39 /* BAR 0 is MMIO, BAR 1 is PIO */
40 #ifndef SC92031_USE_BAR
41 #define SC92031_USE_BAR 0
44 /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). */
45 static int multicast_filter_limit = 64;
46 module_param(multicast_filter_limit, int, 0);
47 MODULE_PARM_DESC(multicast_filter_limit,
48 "Maximum number of filtered multicast addresses");
51 module_param(media, int, 0);
52 MODULE_PARM_DESC(media, "Media type (0x00 = autodetect,"
53 " 0x01 = 10M half, 0x02 = 10M full,"
54 " 0x04 = 100M half, 0x08 = 100M full)");
56 /* Size of the in-memory receive ring. */
57 #define RX_BUF_LEN_IDX 3 /* 0==8K, 1==16K, 2==32K, 3==64K ,4==128K*/
58 #define RX_BUF_LEN (8192 << RX_BUF_LEN_IDX)
60 /* Number of Tx descriptor registers. */
63 /* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/
64 #define MAX_ETH_FRAME_SIZE 1536
66 /* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */
67 #define TX_BUF_SIZE MAX_ETH_FRAME_SIZE
68 #define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC)
70 /* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */
71 #define RX_FIFO_THRESH 7 /* Rx buffer level before first PCI xfer. */
73 /* Time in jiffies before concluding the transmitter is hung. */
74 #define TX_TIMEOUT (4*HZ)
76 #define SILAN_STATS_NUM 2 /* number of ETHTOOL_GSTATS */
79 #define AUTOSELECT 0x00
82 #define M100_HALF 0x04
83 #define M100_FULL 0x08
85 /* Symbolic offsets to registers. */
86 enum silan_registers {
87 Config0 = 0x00, // Config0
88 Config1 = 0x04, // Config1
89 RxBufWPtr = 0x08, // Rx buffer writer poiter
90 IntrStatus = 0x0C, // Interrupt status
91 IntrMask = 0x10, // Interrupt mask
92 RxbufAddr = 0x14, // Rx buffer start address
93 RxBufRPtr = 0x18, // Rx buffer read pointer
94 Txstatusall = 0x1C, // Transmit status of all descriptors
95 TxStatus0 = 0x20, // Transmit status (Four 32bit registers).
96 TxAddr0 = 0x30, // Tx descriptors (also four 32bit).
97 RxConfig = 0x40, // Rx configuration
98 MAC0 = 0x44, // Ethernet hardware address.
99 MAR0 = 0x4C, // Multicast filter.
100 RxStatus0 = 0x54, // Rx status
101 TxConfig = 0x5C, // Tx configuration
102 PhyCtrl = 0x60, // physical control
103 FlowCtrlConfig = 0x64, // flow control
104 Miicmd0 = 0x68, // Mii command0 register
105 Miicmd1 = 0x6C, // Mii command1 register
106 Miistatus = 0x70, // Mii status register
107 Timercnt = 0x74, // Timer counter register
108 TimerIntr = 0x78, // Timer interrupt register
109 PMConfig = 0x7C, // Power Manager configuration
110 CRC0 = 0x80, // Power Manager CRC ( Two 32bit regisers)
111 Wakeup0 = 0x88, // power Manager wakeup( Eight 64bit regiser)
112 LSBCRC0 = 0xC8, // power Manager LSBCRC(Two 32bit regiser)
118 #define MII_BMCR 0 // Basic mode control register
119 #define MII_BMSR 1 // Basic mode status register
121 #define MII_OutputStatus 24
123 #define BMCR_FULLDPLX 0x0100 // Full duplex
124 #define BMCR_ANRESTART 0x0200 // Auto negotiation restart
125 #define BMCR_ANENABLE 0x1000 // Enable auto negotiation
126 #define BMCR_SPEED100 0x2000 // Select 100Mbps
127 #define BMSR_LSTATUS 0x0004 // Link status
128 #define PHY_16_JAB_ENB 0x1000
129 #define PHY_16_PORT_ENB 0x1
131 enum IntrStatusBits {
132 LinkFail = 0x80000000,
134 TimeOut = 0x20000000,
138 IntrBits = LinkFail|LinkOK|TimeOut|RxOverflow|RxOK|TxOK,
142 TxCarrierLost = 0x20000000,
143 TxAborted = 0x10000000,
144 TxOutOfWindow = 0x08000000,
146 EarlyTxThresShift = 16,
153 RxStatesOK = 0x80000,
154 RxBadAlign = 0x40000,
155 RxHugeFrame = 0x20000,
156 RxSmallFrame = 0x10000,
159 Rx_Broadcast = 0x2000,
160 Rx_Multicast = 0x1000,
161 RxAddrMatch = 0x0800,
166 RxFullDx = 0x80000000,
168 RxSmall = 0x20000000,
171 RxAllphys = 0x04000000,
172 RxMulticast = 0x02000000,
173 RxBroadcast = 0x01000000,
174 RxLoopBack = (1 << 23) | (1 << 22),
175 LowThresholdShift = 12,
176 HighThresholdShift = 2,
180 TxFullDx = 0x80000000,
182 TxEnbPad = 0x20000000,
183 TxEnbHuge = 0x10000000,
184 TxEnbFCS = 0x08000000,
185 TxNoBackOff = 0x04000000,
186 TxEnbPrem = 0x02000000,
187 TxCareLostCrs = 0x1000000,
188 TxExdCollNum = 0xf00000,
189 TxDataRate = 0x80000,
192 enum PhyCtrlconfigbits {
193 PhyCtrlAne = 0x80000000,
194 PhyCtrlSpd100 = 0x40000000,
195 PhyCtrlSpd10 = 0x20000000,
196 PhyCtrlPhyBaseAddr = 0x1f000000,
197 PhyCtrlDux = 0x800000,
198 PhyCtrlReset = 0x400000,
201 enum FlowCtrlConfigBits {
202 FlowCtrlFullDX = 0x80000000,
203 FlowCtrlEnb = 0x40000000,
207 Cfg0_Reset = 0x80000000,
208 Cfg0_Anaoff = 0x40000000,
209 Cfg0_LDPS = 0x20000000,
213 Cfg1_EarlyRx = 1 << 31,
214 Cfg1_EarlyTx = 1 << 30,
225 Mii_Divider = 0x20000000,
226 Mii_WRITE = 0x400000,
230 Mii_Drvmod = 0x40000,
238 Mii_StatusBusy = 0x80000000,
245 PM_LANWake = 1 << 28,
246 PM_LWPTN = (1 << 27 | 1<< 26),
252 * priv->lock protects most of the fields of priv and most of the
253 * hardware registers. It does not have to protect against softirqs
254 * between sc92031_disable_interrupts and sc92031_enable_interrupts;
255 * it also does not need to be used in ->open and ->stop while the
256 * device interrupts are off.
257 * Not having to protect against softirqs is very useful due to heavy
258 * use of mdelay() at _sc92031_reset.
259 * Functions prefixed with _sc92031_ must be called with the lock held;
260 * functions prefixed with sc92031_ must be called without the lock held.
261 * Use mmiowb() before unlocking if the hardware was written to.
264 /* Locking rules for the interrupt:
265 * - the interrupt and the tasklet never run at the same time
266 * - neither run between sc92031_disable_interrupts and
267 * sc92031_enable_interrupt
270 struct sc92031_priv {
273 void __iomem *port_base;
274 /* pci device structure */
275 struct pci_dev *pdev;
277 struct tasklet_struct tasklet;
279 /* CPU address of rx ring */
281 /* PCI address of rx ring */
282 dma_addr_t rx_ring_dma_addr;
283 /* PCI address of rx ring read pointer */
284 dma_addr_t rx_ring_tail;
286 /* tx ring write index */
288 /* tx ring read index */
290 /* CPU address of tx bounce buffer */
292 /* PCI address of tx bounce buffer */
293 dma_addr_t tx_bufs_dma_addr;
295 /* copies of some hardware registers */
302 /* copy of some flags from dev->flags */
303 unsigned int mc_flags;
305 /* for ETHTOOL_GSTATS */
309 /* for dev->get_stats */
313 /* I don't know which registers can be safely read; however, I can guess
314 * MAC0 is one of them. */
315 static inline void _sc92031_dummy_read(void __iomem *port_base)
317 ioread32(port_base + MAC0);
320 static u32 _sc92031_mii_wait(void __iomem *port_base)
326 mii_status = ioread32(port_base + Miistatus);
327 } while (mii_status & Mii_StatusBusy);
332 static u32 _sc92031_mii_cmd(void __iomem *port_base, u32 cmd0, u32 cmd1)
334 iowrite32(Mii_Divider, port_base + Miicmd0);
336 _sc92031_mii_wait(port_base);
338 iowrite32(cmd1, port_base + Miicmd1);
339 iowrite32(Mii_Divider | cmd0, port_base + Miicmd0);
341 return _sc92031_mii_wait(port_base);
344 static void _sc92031_mii_scan(void __iomem *port_base)
346 _sc92031_mii_cmd(port_base, Mii_SCAN, 0x1 << 6);
349 static u16 _sc92031_mii_read(void __iomem *port_base, unsigned reg)
351 return _sc92031_mii_cmd(port_base, Mii_READ, reg << 6) >> 13;
354 static void _sc92031_mii_write(void __iomem *port_base, unsigned reg, u16 val)
356 _sc92031_mii_cmd(port_base, Mii_WRITE, (reg << 6) | ((u32)val << 11));
359 static void sc92031_disable_interrupts(struct net_device *dev)
361 struct sc92031_priv *priv = netdev_priv(dev);
362 void __iomem *port_base = priv->port_base;
364 /* tell the tasklet/interrupt not to enable interrupts */
365 atomic_set(&priv->intr_mask, 0);
368 /* stop interrupts */
369 iowrite32(0, port_base + IntrMask);
370 _sc92031_dummy_read(port_base);
373 /* wait for any concurrent interrupt/tasklet to finish */
374 synchronize_irq(dev->irq);
375 tasklet_disable(&priv->tasklet);
378 static void sc92031_enable_interrupts(struct net_device *dev)
380 struct sc92031_priv *priv = netdev_priv(dev);
381 void __iomem *port_base = priv->port_base;
383 tasklet_enable(&priv->tasklet);
385 atomic_set(&priv->intr_mask, IntrBits);
388 iowrite32(IntrBits, port_base + IntrMask);
392 static void _sc92031_disable_tx_rx(struct net_device *dev)
394 struct sc92031_priv *priv = netdev_priv(dev);
395 void __iomem *port_base = priv->port_base;
397 priv->rx_config &= ~RxEnb;
398 priv->tx_config &= ~TxEnb;
399 iowrite32(priv->rx_config, port_base + RxConfig);
400 iowrite32(priv->tx_config, port_base + TxConfig);
403 static void _sc92031_enable_tx_rx(struct net_device *dev)
405 struct sc92031_priv *priv = netdev_priv(dev);
406 void __iomem *port_base = priv->port_base;
408 priv->rx_config |= RxEnb;
409 priv->tx_config |= TxEnb;
410 iowrite32(priv->rx_config, port_base + RxConfig);
411 iowrite32(priv->tx_config, port_base + TxConfig);
414 static void _sc92031_tx_clear(struct net_device *dev)
416 struct sc92031_priv *priv = netdev_priv(dev);
418 while (priv->tx_head - priv->tx_tail > 0) {
420 dev->stats.tx_dropped++;
422 priv->tx_head = priv->tx_tail = 0;
425 static void _sc92031_set_mar(struct net_device *dev)
427 struct sc92031_priv *priv = netdev_priv(dev);
428 void __iomem *port_base = priv->port_base;
429 u32 mar0 = 0, mar1 = 0;
431 if ((dev->flags & IFF_PROMISC) ||
432 netdev_mc_count(dev) > multicast_filter_limit ||
433 (dev->flags & IFF_ALLMULTI))
434 mar0 = mar1 = 0xffffffff;
435 else if (dev->flags & IFF_MULTICAST) {
436 struct dev_mc_list *mc_list;
438 netdev_for_each_mc_addr(mc_list, dev) {
442 crc = ~ether_crc(ETH_ALEN, mc_list->dmi_addr);
445 if (crc & 0x01) bit |= 0x02;
446 if (crc & 0x02) bit |= 0x01;
447 if (crc & 0x10) bit |= 0x20;
448 if (crc & 0x20) bit |= 0x10;
449 if (crc & 0x40) bit |= 0x08;
450 if (crc & 0x80) bit |= 0x04;
453 mar0 |= 0x1 << (bit - 32);
459 iowrite32(mar0, port_base + MAR0);
460 iowrite32(mar1, port_base + MAR0 + 4);
463 static void _sc92031_set_rx_config(struct net_device *dev)
465 struct sc92031_priv *priv = netdev_priv(dev);
466 void __iomem *port_base = priv->port_base;
467 unsigned int old_mc_flags;
468 u32 rx_config_bits = 0;
470 old_mc_flags = priv->mc_flags;
472 if (dev->flags & IFF_PROMISC)
473 rx_config_bits |= RxSmall | RxHuge | RxErr | RxBroadcast
474 | RxMulticast | RxAllphys;
476 if (dev->flags & (IFF_ALLMULTI | IFF_MULTICAST))
477 rx_config_bits |= RxMulticast;
479 if (dev->flags & IFF_BROADCAST)
480 rx_config_bits |= RxBroadcast;
482 priv->rx_config &= ~(RxSmall | RxHuge | RxErr | RxBroadcast
483 | RxMulticast | RxAllphys);
484 priv->rx_config |= rx_config_bits;
486 priv->mc_flags = dev->flags & (IFF_PROMISC | IFF_ALLMULTI
487 | IFF_MULTICAST | IFF_BROADCAST);
489 if (netif_carrier_ok(dev) && priv->mc_flags != old_mc_flags)
490 iowrite32(priv->rx_config, port_base + RxConfig);
493 static bool _sc92031_check_media(struct net_device *dev)
495 struct sc92031_priv *priv = netdev_priv(dev);
496 void __iomem *port_base = priv->port_base;
499 bmsr = _sc92031_mii_read(port_base, MII_BMSR);
501 if (bmsr & BMSR_LSTATUS) {
502 bool speed_100, duplex_full;
503 u32 flow_ctrl_config = 0;
504 u16 output_status = _sc92031_mii_read(port_base,
506 _sc92031_mii_scan(port_base);
508 speed_100 = output_status & 0x2;
509 duplex_full = output_status & 0x4;
511 /* Initial Tx/Rx configuration */
512 priv->rx_config = (0x40 << LowThresholdShift) | (0x1c0 << HighThresholdShift);
513 priv->tx_config = 0x48800000;
515 /* NOTE: vendor driver had dead code here to enable tx padding */
518 priv->tx_config |= 0x80000;
521 _sc92031_set_rx_config(dev);
524 priv->rx_config |= RxFullDx;
525 priv->tx_config |= TxFullDx;
526 flow_ctrl_config = FlowCtrlFullDX | FlowCtrlEnb;
528 priv->rx_config &= ~RxFullDx;
529 priv->tx_config &= ~TxFullDx;
532 _sc92031_set_mar(dev);
533 _sc92031_set_rx_config(dev);
534 _sc92031_enable_tx_rx(dev);
535 iowrite32(flow_ctrl_config, port_base + FlowCtrlConfig);
537 netif_carrier_on(dev);
539 if (printk_ratelimit())
540 printk(KERN_INFO "%s: link up, %sMbps, %s-duplex\n",
542 speed_100 ? "100" : "10",
543 duplex_full ? "full" : "half");
546 _sc92031_mii_scan(port_base);
548 netif_carrier_off(dev);
550 _sc92031_disable_tx_rx(dev);
552 if (printk_ratelimit())
553 printk(KERN_INFO "%s: link down\n", dev->name);
558 static void _sc92031_phy_reset(struct net_device *dev)
560 struct sc92031_priv *priv = netdev_priv(dev);
561 void __iomem *port_base = priv->port_base;
564 phy_ctrl = ioread32(port_base + PhyCtrl);
565 phy_ctrl &= ~(PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10);
566 phy_ctrl |= PhyCtrlAne | PhyCtrlReset;
571 phy_ctrl |= PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10;
574 phy_ctrl |= PhyCtrlSpd10;
577 phy_ctrl |= PhyCtrlDux | PhyCtrlSpd10;
580 phy_ctrl |= PhyCtrlSpd100;
583 phy_ctrl |= PhyCtrlDux | PhyCtrlSpd100;
587 iowrite32(phy_ctrl, port_base + PhyCtrl);
590 phy_ctrl &= ~PhyCtrlReset;
591 iowrite32(phy_ctrl, port_base + PhyCtrl);
594 _sc92031_mii_write(port_base, MII_JAB,
595 PHY_16_JAB_ENB | PHY_16_PORT_ENB);
596 _sc92031_mii_scan(port_base);
598 netif_carrier_off(dev);
599 netif_stop_queue(dev);
602 static void _sc92031_reset(struct net_device *dev)
604 struct sc92031_priv *priv = netdev_priv(dev);
605 void __iomem *port_base = priv->port_base;
608 iowrite32(0, port_base + PMConfig);
610 /* soft reset the chip */
611 iowrite32(Cfg0_Reset, port_base + Config0);
614 iowrite32(0, port_base + Config0);
617 /* disable interrupts */
618 iowrite32(0, port_base + IntrMask);
620 /* clear multicast address */
621 iowrite32(0, port_base + MAR0);
622 iowrite32(0, port_base + MAR0 + 4);
625 iowrite32(priv->rx_ring_dma_addr, port_base + RxbufAddr);
626 priv->rx_ring_tail = priv->rx_ring_dma_addr;
629 _sc92031_tx_clear(dev);
631 /* clear old register values */
632 priv->intr_status = 0;
633 atomic_set(&priv->intr_mask, 0);
638 /* configure rx buffer size */
639 /* NOTE: vendor driver had dead code here to enable early tx/rx */
640 iowrite32(Cfg1_Rcv64K, port_base + Config1);
642 _sc92031_phy_reset(dev);
643 _sc92031_check_media(dev);
645 /* calculate rx fifo overflow */
649 iowrite32(priv->pm_config, port_base + PMConfig);
651 /* clear intr register */
652 ioread32(port_base + IntrStatus);
655 static void _sc92031_tx_tasklet(struct net_device *dev)
657 struct sc92031_priv *priv = netdev_priv(dev);
658 void __iomem *port_base = priv->port_base;
660 unsigned old_tx_tail;
664 old_tx_tail = priv->tx_tail;
665 while (priv->tx_head - priv->tx_tail > 0) {
666 entry = priv->tx_tail % NUM_TX_DESC;
667 tx_status = ioread32(port_base + TxStatus0 + entry * 4);
669 if (!(tx_status & (TxStatOK | TxUnderrun | TxAborted)))
674 if (tx_status & TxStatOK) {
675 dev->stats.tx_bytes += tx_status & 0x1fff;
676 dev->stats.tx_packets++;
677 /* Note: TxCarrierLost is always asserted at 100mbps. */
678 dev->stats.collisions += (tx_status >> 22) & 0xf;
681 if (tx_status & (TxOutOfWindow | TxAborted)) {
682 dev->stats.tx_errors++;
684 if (tx_status & TxAborted)
685 dev->stats.tx_aborted_errors++;
687 if (tx_status & TxCarrierLost)
688 dev->stats.tx_carrier_errors++;
690 if (tx_status & TxOutOfWindow)
691 dev->stats.tx_window_errors++;
694 if (tx_status & TxUnderrun)
695 dev->stats.tx_fifo_errors++;
698 if (priv->tx_tail != old_tx_tail)
699 if (netif_queue_stopped(dev))
700 netif_wake_queue(dev);
703 static void _sc92031_rx_tasklet_error(struct net_device *dev,
704 u32 rx_status, unsigned rx_size)
706 if(rx_size > (MAX_ETH_FRAME_SIZE + 4) || rx_size < 16) {
707 dev->stats.rx_errors++;
708 dev->stats.rx_length_errors++;
711 if (!(rx_status & RxStatesOK)) {
712 dev->stats.rx_errors++;
714 if (rx_status & (RxHugeFrame | RxSmallFrame))
715 dev->stats.rx_length_errors++;
717 if (rx_status & RxBadAlign)
718 dev->stats.rx_frame_errors++;
720 if (!(rx_status & RxCRCOK))
721 dev->stats.rx_crc_errors++;
723 struct sc92031_priv *priv = netdev_priv(dev);
728 static void _sc92031_rx_tasklet(struct net_device *dev)
730 struct sc92031_priv *priv = netdev_priv(dev);
731 void __iomem *port_base = priv->port_base;
733 dma_addr_t rx_ring_head;
735 unsigned rx_ring_offset;
736 void *rx_ring = priv->rx_ring;
738 rx_ring_head = ioread32(port_base + RxBufWPtr);
741 /* rx_ring_head is only 17 bits in the RxBufWPtr register.
742 * we need to change it to 32 bits physical address
744 rx_ring_head &= (dma_addr_t)(RX_BUF_LEN - 1);
745 rx_ring_head |= priv->rx_ring_dma_addr & ~(dma_addr_t)(RX_BUF_LEN - 1);
746 if (rx_ring_head < priv->rx_ring_dma_addr)
747 rx_ring_head += RX_BUF_LEN;
749 if (rx_ring_head >= priv->rx_ring_tail)
750 rx_len = rx_ring_head - priv->rx_ring_tail;
752 rx_len = RX_BUF_LEN - (priv->rx_ring_tail - rx_ring_head);
757 if (unlikely(rx_len > RX_BUF_LEN)) {
758 if (printk_ratelimit())
759 printk(KERN_ERR "%s: rx packets length > rx buffer\n",
764 rx_ring_offset = (priv->rx_ring_tail - priv->rx_ring_dma_addr) % RX_BUF_LEN;
768 unsigned rx_size, rx_size_align, pkt_size;
771 rx_status = le32_to_cpup((__le32 *)(rx_ring + rx_ring_offset));
774 rx_size = rx_status >> 20;
775 rx_size_align = (rx_size + 3) & ~3; // for 4 bytes aligned
776 pkt_size = rx_size - 4; // Omit the four octet CRC from the length.
778 rx_ring_offset = (rx_ring_offset + 4) % RX_BUF_LEN;
780 if (unlikely(rx_status == 0 ||
781 rx_size > (MAX_ETH_FRAME_SIZE + 4) ||
783 !(rx_status & RxStatesOK))) {
784 _sc92031_rx_tasklet_error(dev, rx_status, rx_size);
788 if (unlikely(rx_size_align + 4 > rx_len)) {
789 if (printk_ratelimit())
790 printk(KERN_ERR "%s: rx_len is too small\n", dev->name);
794 rx_len -= rx_size_align + 4;
796 skb = netdev_alloc_skb_ip_align(dev, pkt_size);
797 if (unlikely(!skb)) {
798 if (printk_ratelimit())
799 printk(KERN_ERR "%s: Couldn't allocate a skb_buff for a packet of size %u\n",
800 dev->name, pkt_size);
804 if ((rx_ring_offset + pkt_size) > RX_BUF_LEN) {
805 memcpy(skb_put(skb, RX_BUF_LEN - rx_ring_offset),
806 rx_ring + rx_ring_offset, RX_BUF_LEN - rx_ring_offset);
807 memcpy(skb_put(skb, pkt_size - (RX_BUF_LEN - rx_ring_offset)),
808 rx_ring, pkt_size - (RX_BUF_LEN - rx_ring_offset));
810 memcpy(skb_put(skb, pkt_size), rx_ring + rx_ring_offset, pkt_size);
813 skb->protocol = eth_type_trans(skb, dev);
816 dev->stats.rx_bytes += pkt_size;
817 dev->stats.rx_packets++;
819 if (rx_status & Rx_Multicast)
820 dev->stats.multicast++;
823 rx_ring_offset = (rx_ring_offset + rx_size_align) % RX_BUF_LEN;
827 priv->rx_ring_tail = rx_ring_head;
828 iowrite32(priv->rx_ring_tail, port_base + RxBufRPtr);
831 static void _sc92031_link_tasklet(struct net_device *dev)
833 if (_sc92031_check_media(dev))
834 netif_wake_queue(dev);
836 netif_stop_queue(dev);
837 dev->stats.tx_carrier_errors++;
841 static void sc92031_tasklet(unsigned long data)
843 struct net_device *dev = (struct net_device *)data;
844 struct sc92031_priv *priv = netdev_priv(dev);
845 void __iomem *port_base = priv->port_base;
846 u32 intr_status, intr_mask;
848 intr_status = priv->intr_status;
850 spin_lock(&priv->lock);
852 if (unlikely(!netif_running(dev)))
855 if (intr_status & TxOK)
856 _sc92031_tx_tasklet(dev);
858 if (intr_status & RxOK)
859 _sc92031_rx_tasklet(dev);
861 if (intr_status & RxOverflow)
862 dev->stats.rx_errors++;
864 if (intr_status & TimeOut) {
865 dev->stats.rx_errors++;
866 dev->stats.rx_length_errors++;
869 if (intr_status & (LinkFail | LinkOK))
870 _sc92031_link_tasklet(dev);
873 intr_mask = atomic_read(&priv->intr_mask);
876 iowrite32(intr_mask, port_base + IntrMask);
879 spin_unlock(&priv->lock);
882 static irqreturn_t sc92031_interrupt(int irq, void *dev_id)
884 struct net_device *dev = dev_id;
885 struct sc92031_priv *priv = netdev_priv(dev);
886 void __iomem *port_base = priv->port_base;
887 u32 intr_status, intr_mask;
889 /* mask interrupts before clearing IntrStatus */
890 iowrite32(0, port_base + IntrMask);
891 _sc92031_dummy_read(port_base);
893 intr_status = ioread32(port_base + IntrStatus);
894 if (unlikely(intr_status == 0xffffffff))
895 return IRQ_NONE; // hardware has gone missing
897 intr_status &= IntrBits;
901 priv->intr_status = intr_status;
902 tasklet_schedule(&priv->tasklet);
907 intr_mask = atomic_read(&priv->intr_mask);
910 iowrite32(intr_mask, port_base + IntrMask);
916 static struct net_device_stats *sc92031_get_stats(struct net_device *dev)
918 struct sc92031_priv *priv = netdev_priv(dev);
919 void __iomem *port_base = priv->port_base;
921 // FIXME I do not understand what is this trying to do.
922 if (netif_running(dev)) {
925 spin_lock_bh(&priv->lock);
927 /* Update the error count. */
928 temp = (ioread32(port_base + RxStatus0) >> 16) & 0xffff;
930 if (temp == 0xffff) {
931 priv->rx_value += temp;
932 dev->stats.rx_fifo_errors = priv->rx_value;
934 dev->stats.rx_fifo_errors = temp + priv->rx_value;
936 spin_unlock_bh(&priv->lock);
942 static netdev_tx_t sc92031_start_xmit(struct sk_buff *skb,
943 struct net_device *dev)
945 struct sc92031_priv *priv = netdev_priv(dev);
946 void __iomem *port_base = priv->port_base;
951 if (unlikely(skb->len > TX_BUF_SIZE)) {
952 dev->stats.tx_dropped++;
956 spin_lock(&priv->lock);
958 if (unlikely(!netif_carrier_ok(dev))) {
959 dev->stats.tx_dropped++;
963 BUG_ON(priv->tx_head - priv->tx_tail >= NUM_TX_DESC);
965 entry = priv->tx_head++ % NUM_TX_DESC;
967 skb_copy_and_csum_dev(skb, priv->tx_bufs + entry * TX_BUF_SIZE);
970 if (len < ETH_ZLEN) {
971 memset(priv->tx_bufs + entry * TX_BUF_SIZE + len,
981 tx_status = 0x30000 | len;
983 tx_status = 0x50000 | len;
985 iowrite32(priv->tx_bufs_dma_addr + entry * TX_BUF_SIZE,
986 port_base + TxAddr0 + entry * 4);
987 iowrite32(tx_status, port_base + TxStatus0 + entry * 4);
990 dev->trans_start = jiffies;
992 if (priv->tx_head - priv->tx_tail >= NUM_TX_DESC)
993 netif_stop_queue(dev);
996 spin_unlock(&priv->lock);
1001 return NETDEV_TX_OK;
1004 static int sc92031_open(struct net_device *dev)
1007 struct sc92031_priv *priv = netdev_priv(dev);
1008 struct pci_dev *pdev = priv->pdev;
1010 priv->rx_ring = pci_alloc_consistent(pdev, RX_BUF_LEN,
1011 &priv->rx_ring_dma_addr);
1012 if (unlikely(!priv->rx_ring)) {
1014 goto out_alloc_rx_ring;
1017 priv->tx_bufs = pci_alloc_consistent(pdev, TX_BUF_TOT_LEN,
1018 &priv->tx_bufs_dma_addr);
1019 if (unlikely(!priv->tx_bufs)) {
1021 goto out_alloc_tx_bufs;
1023 priv->tx_head = priv->tx_tail = 0;
1025 err = request_irq(pdev->irq, sc92031_interrupt,
1026 IRQF_SHARED, dev->name, dev);
1027 if (unlikely(err < 0))
1028 goto out_request_irq;
1030 priv->pm_config = 0;
1032 /* Interrupts already disabled by sc92031_stop or sc92031_probe */
1033 spin_lock_bh(&priv->lock);
1035 _sc92031_reset(dev);
1038 spin_unlock_bh(&priv->lock);
1039 sc92031_enable_interrupts(dev);
1041 if (netif_carrier_ok(dev))
1042 netif_start_queue(dev);
1044 netif_tx_disable(dev);
1049 pci_free_consistent(pdev, TX_BUF_TOT_LEN, priv->tx_bufs,
1050 priv->tx_bufs_dma_addr);
1052 pci_free_consistent(pdev, RX_BUF_LEN, priv->rx_ring,
1053 priv->rx_ring_dma_addr);
1058 static int sc92031_stop(struct net_device *dev)
1060 struct sc92031_priv *priv = netdev_priv(dev);
1061 struct pci_dev *pdev = priv->pdev;
1063 netif_tx_disable(dev);
1065 /* Disable interrupts, stop Tx and Rx. */
1066 sc92031_disable_interrupts(dev);
1068 spin_lock_bh(&priv->lock);
1070 _sc92031_disable_tx_rx(dev);
1071 _sc92031_tx_clear(dev);
1074 spin_unlock_bh(&priv->lock);
1076 free_irq(pdev->irq, dev);
1077 pci_free_consistent(pdev, TX_BUF_TOT_LEN, priv->tx_bufs,
1078 priv->tx_bufs_dma_addr);
1079 pci_free_consistent(pdev, RX_BUF_LEN, priv->rx_ring,
1080 priv->rx_ring_dma_addr);
1085 static void sc92031_set_multicast_list(struct net_device *dev)
1087 struct sc92031_priv *priv = netdev_priv(dev);
1089 spin_lock_bh(&priv->lock);
1091 _sc92031_set_mar(dev);
1092 _sc92031_set_rx_config(dev);
1095 spin_unlock_bh(&priv->lock);
1098 static void sc92031_tx_timeout(struct net_device *dev)
1100 struct sc92031_priv *priv = netdev_priv(dev);
1102 /* Disable interrupts by clearing the interrupt mask.*/
1103 sc92031_disable_interrupts(dev);
1105 spin_lock(&priv->lock);
1107 priv->tx_timeouts++;
1109 _sc92031_reset(dev);
1112 spin_unlock(&priv->lock);
1114 /* enable interrupts */
1115 sc92031_enable_interrupts(dev);
1117 if (netif_carrier_ok(dev))
1118 netif_wake_queue(dev);
1121 #ifdef CONFIG_NET_POLL_CONTROLLER
1122 static void sc92031_poll_controller(struct net_device *dev)
1124 disable_irq(dev->irq);
1125 if (sc92031_interrupt(dev->irq, dev) != IRQ_NONE)
1126 sc92031_tasklet((unsigned long)dev);
1127 enable_irq(dev->irq);
1131 static int sc92031_ethtool_get_settings(struct net_device *dev,
1132 struct ethtool_cmd *cmd)
1134 struct sc92031_priv *priv = netdev_priv(dev);
1135 void __iomem *port_base = priv->port_base;
1140 spin_lock_bh(&priv->lock);
1142 phy_address = ioread32(port_base + Miicmd1) >> 27;
1143 phy_ctrl = ioread32(port_base + PhyCtrl);
1145 output_status = _sc92031_mii_read(port_base, MII_OutputStatus);
1146 _sc92031_mii_scan(port_base);
1149 spin_unlock_bh(&priv->lock);
1151 cmd->supported = SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full
1152 | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full
1153 | SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII;
1155 cmd->advertising = ADVERTISED_TP | ADVERTISED_MII;
1157 if ((phy_ctrl & (PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10))
1158 == (PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10))
1159 cmd->advertising |= ADVERTISED_Autoneg;
1161 if ((phy_ctrl & PhyCtrlSpd10) == PhyCtrlSpd10)
1162 cmd->advertising |= ADVERTISED_10baseT_Half;
1164 if ((phy_ctrl & (PhyCtrlSpd10 | PhyCtrlDux))
1165 == (PhyCtrlSpd10 | PhyCtrlDux))
1166 cmd->advertising |= ADVERTISED_10baseT_Full;
1168 if ((phy_ctrl & PhyCtrlSpd100) == PhyCtrlSpd100)
1169 cmd->advertising |= ADVERTISED_100baseT_Half;
1171 if ((phy_ctrl & (PhyCtrlSpd100 | PhyCtrlDux))
1172 == (PhyCtrlSpd100 | PhyCtrlDux))
1173 cmd->advertising |= ADVERTISED_100baseT_Full;
1175 if (phy_ctrl & PhyCtrlAne)
1176 cmd->advertising |= ADVERTISED_Autoneg;
1178 cmd->speed = (output_status & 0x2) ? SPEED_100 : SPEED_10;
1179 cmd->duplex = (output_status & 0x4) ? DUPLEX_FULL : DUPLEX_HALF;
1180 cmd->port = PORT_MII;
1181 cmd->phy_address = phy_address;
1182 cmd->transceiver = XCVR_INTERNAL;
1183 cmd->autoneg = (phy_ctrl & PhyCtrlAne) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
1188 static int sc92031_ethtool_set_settings(struct net_device *dev,
1189 struct ethtool_cmd *cmd)
1191 struct sc92031_priv *priv = netdev_priv(dev);
1192 void __iomem *port_base = priv->port_base;
1196 if (!(cmd->speed == SPEED_10 || cmd->speed == SPEED_100))
1198 if (!(cmd->duplex == DUPLEX_HALF || cmd->duplex == DUPLEX_FULL))
1200 if (!(cmd->port == PORT_MII))
1202 if (!(cmd->phy_address == 0x1f))
1204 if (!(cmd->transceiver == XCVR_INTERNAL))
1206 if (!(cmd->autoneg == AUTONEG_DISABLE || cmd->autoneg == AUTONEG_ENABLE))
1209 if (cmd->autoneg == AUTONEG_ENABLE) {
1210 if (!(cmd->advertising & (ADVERTISED_Autoneg
1211 | ADVERTISED_100baseT_Full
1212 | ADVERTISED_100baseT_Half
1213 | ADVERTISED_10baseT_Full
1214 | ADVERTISED_10baseT_Half)))
1217 phy_ctrl = PhyCtrlAne;
1219 // FIXME: I'm not sure what the original code was trying to do
1220 if (cmd->advertising & ADVERTISED_Autoneg)
1221 phy_ctrl |= PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10;
1222 if (cmd->advertising & ADVERTISED_100baseT_Full)
1223 phy_ctrl |= PhyCtrlDux | PhyCtrlSpd100;
1224 if (cmd->advertising & ADVERTISED_100baseT_Half)
1225 phy_ctrl |= PhyCtrlSpd100;
1226 if (cmd->advertising & ADVERTISED_10baseT_Full)
1227 phy_ctrl |= PhyCtrlSpd10 | PhyCtrlDux;
1228 if (cmd->advertising & ADVERTISED_10baseT_Half)
1229 phy_ctrl |= PhyCtrlSpd10;
1231 // FIXME: Whole branch guessed
1234 if (cmd->speed == SPEED_10)
1235 phy_ctrl |= PhyCtrlSpd10;
1236 else /* cmd->speed == SPEED_100 */
1237 phy_ctrl |= PhyCtrlSpd100;
1239 if (cmd->duplex == DUPLEX_FULL)
1240 phy_ctrl |= PhyCtrlDux;
1243 spin_lock_bh(&priv->lock);
1245 old_phy_ctrl = ioread32(port_base + PhyCtrl);
1246 phy_ctrl |= old_phy_ctrl & ~(PhyCtrlAne | PhyCtrlDux
1247 | PhyCtrlSpd100 | PhyCtrlSpd10);
1248 if (phy_ctrl != old_phy_ctrl)
1249 iowrite32(phy_ctrl, port_base + PhyCtrl);
1251 spin_unlock_bh(&priv->lock);
1256 static void sc92031_ethtool_get_drvinfo(struct net_device *dev,
1257 struct ethtool_drvinfo *drvinfo)
1259 struct sc92031_priv *priv = netdev_priv(dev);
1260 struct pci_dev *pdev = priv->pdev;
1262 strcpy(drvinfo->driver, SC92031_NAME);
1263 strcpy(drvinfo->bus_info, pci_name(pdev));
1266 static void sc92031_ethtool_get_wol(struct net_device *dev,
1267 struct ethtool_wolinfo *wolinfo)
1269 struct sc92031_priv *priv = netdev_priv(dev);
1270 void __iomem *port_base = priv->port_base;
1273 spin_lock_bh(&priv->lock);
1274 pm_config = ioread32(port_base + PMConfig);
1275 spin_unlock_bh(&priv->lock);
1278 wolinfo->supported = WAKE_PHY | WAKE_MAGIC
1279 | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST;
1280 wolinfo->wolopts = 0;
1282 if (pm_config & PM_LinkUp)
1283 wolinfo->wolopts |= WAKE_PHY;
1285 if (pm_config & PM_Magic)
1286 wolinfo->wolopts |= WAKE_MAGIC;
1288 if (pm_config & PM_WakeUp)
1290 wolinfo->wolopts |= WAKE_UCAST | WAKE_MCAST | WAKE_BCAST;
1293 static int sc92031_ethtool_set_wol(struct net_device *dev,
1294 struct ethtool_wolinfo *wolinfo)
1296 struct sc92031_priv *priv = netdev_priv(dev);
1297 void __iomem *port_base = priv->port_base;
1300 spin_lock_bh(&priv->lock);
1302 pm_config = ioread32(port_base + PMConfig)
1303 & ~(PM_LinkUp | PM_Magic | PM_WakeUp);
1305 if (wolinfo->wolopts & WAKE_PHY)
1306 pm_config |= PM_LinkUp;
1308 if (wolinfo->wolopts & WAKE_MAGIC)
1309 pm_config |= PM_Magic;
1312 if (wolinfo->wolopts & (WAKE_UCAST | WAKE_MCAST | WAKE_BCAST))
1313 pm_config |= PM_WakeUp;
1315 priv->pm_config = pm_config;
1316 iowrite32(pm_config, port_base + PMConfig);
1319 spin_unlock_bh(&priv->lock);
1324 static int sc92031_ethtool_nway_reset(struct net_device *dev)
1327 struct sc92031_priv *priv = netdev_priv(dev);
1328 void __iomem *port_base = priv->port_base;
1331 spin_lock_bh(&priv->lock);
1333 bmcr = _sc92031_mii_read(port_base, MII_BMCR);
1334 if (!(bmcr & BMCR_ANENABLE)) {
1339 _sc92031_mii_write(port_base, MII_BMCR, bmcr | BMCR_ANRESTART);
1342 _sc92031_mii_scan(port_base);
1345 spin_unlock_bh(&priv->lock);
1350 static const char sc92031_ethtool_stats_strings[SILAN_STATS_NUM][ETH_GSTRING_LEN] = {
1355 static void sc92031_ethtool_get_strings(struct net_device *dev,
1356 u32 stringset, u8 *data)
1358 if (stringset == ETH_SS_STATS)
1359 memcpy(data, sc92031_ethtool_stats_strings,
1360 SILAN_STATS_NUM * ETH_GSTRING_LEN);
1363 static int sc92031_ethtool_get_sset_count(struct net_device *dev, int sset)
1367 return SILAN_STATS_NUM;
1373 static void sc92031_ethtool_get_ethtool_stats(struct net_device *dev,
1374 struct ethtool_stats *stats, u64 *data)
1376 struct sc92031_priv *priv = netdev_priv(dev);
1378 spin_lock_bh(&priv->lock);
1379 data[0] = priv->tx_timeouts;
1380 data[1] = priv->rx_loss;
1381 spin_unlock_bh(&priv->lock);
1384 static const struct ethtool_ops sc92031_ethtool_ops = {
1385 .get_settings = sc92031_ethtool_get_settings,
1386 .set_settings = sc92031_ethtool_set_settings,
1387 .get_drvinfo = sc92031_ethtool_get_drvinfo,
1388 .get_wol = sc92031_ethtool_get_wol,
1389 .set_wol = sc92031_ethtool_set_wol,
1390 .nway_reset = sc92031_ethtool_nway_reset,
1391 .get_link = ethtool_op_get_link,
1392 .get_strings = sc92031_ethtool_get_strings,
1393 .get_sset_count = sc92031_ethtool_get_sset_count,
1394 .get_ethtool_stats = sc92031_ethtool_get_ethtool_stats,
1398 static const struct net_device_ops sc92031_netdev_ops = {
1399 .ndo_get_stats = sc92031_get_stats,
1400 .ndo_start_xmit = sc92031_start_xmit,
1401 .ndo_open = sc92031_open,
1402 .ndo_stop = sc92031_stop,
1403 .ndo_set_multicast_list = sc92031_set_multicast_list,
1404 .ndo_change_mtu = eth_change_mtu,
1405 .ndo_validate_addr = eth_validate_addr,
1406 .ndo_set_mac_address = eth_mac_addr,
1407 .ndo_tx_timeout = sc92031_tx_timeout,
1408 #ifdef CONFIG_NET_POLL_CONTROLLER
1409 .ndo_poll_controller = sc92031_poll_controller,
1413 static int __devinit sc92031_probe(struct pci_dev *pdev,
1414 const struct pci_device_id *id)
1417 void __iomem* port_base;
1418 struct net_device *dev;
1419 struct sc92031_priv *priv;
1421 unsigned long base_addr;
1423 err = pci_enable_device(pdev);
1424 if (unlikely(err < 0))
1425 goto out_enable_device;
1427 pci_set_master(pdev);
1429 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
1430 if (unlikely(err < 0))
1431 goto out_set_dma_mask;
1433 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
1434 if (unlikely(err < 0))
1435 goto out_set_dma_mask;
1437 err = pci_request_regions(pdev, SC92031_NAME);
1438 if (unlikely(err < 0))
1439 goto out_request_regions;
1441 port_base = pci_iomap(pdev, SC92031_USE_BAR, 0);
1442 if (unlikely(!port_base)) {
1447 dev = alloc_etherdev(sizeof(struct sc92031_priv));
1448 if (unlikely(!dev)) {
1450 goto out_alloc_etherdev;
1453 pci_set_drvdata(pdev, dev);
1454 SET_NETDEV_DEV(dev, &pdev->dev);
1456 #if SC92031_USE_BAR == 0
1457 dev->mem_start = pci_resource_start(pdev, SC92031_USE_BAR);
1458 dev->mem_end = pci_resource_end(pdev, SC92031_USE_BAR);
1459 #elif SC92031_USE_BAR == 1
1460 dev->base_addr = pci_resource_start(pdev, SC92031_USE_BAR);
1462 dev->irq = pdev->irq;
1464 /* faked with skb_copy_and_csum_dev */
1465 dev->features = NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA;
1467 dev->netdev_ops = &sc92031_netdev_ops;
1468 dev->watchdog_timeo = TX_TIMEOUT;
1469 dev->ethtool_ops = &sc92031_ethtool_ops;
1471 priv = netdev_priv(dev);
1472 spin_lock_init(&priv->lock);
1473 priv->port_base = port_base;
1475 tasklet_init(&priv->tasklet, sc92031_tasklet, (unsigned long)dev);
1476 /* Fudge tasklet count so the call to sc92031_enable_interrupts at
1477 * sc92031_open will work correctly */
1478 tasklet_disable_nosync(&priv->tasklet);
1481 iowrite32((~PM_LongWF & ~PM_LWPTN) | PM_Enable, port_base + PMConfig);
1483 mac0 = ioread32(port_base + MAC0);
1484 mac1 = ioread32(port_base + MAC0 + 4);
1485 dev->dev_addr[0] = dev->perm_addr[0] = mac0 >> 24;
1486 dev->dev_addr[1] = dev->perm_addr[1] = mac0 >> 16;
1487 dev->dev_addr[2] = dev->perm_addr[2] = mac0 >> 8;
1488 dev->dev_addr[3] = dev->perm_addr[3] = mac0;
1489 dev->dev_addr[4] = dev->perm_addr[4] = mac1 >> 8;
1490 dev->dev_addr[5] = dev->perm_addr[5] = mac1;
1492 err = register_netdev(dev);
1494 goto out_register_netdev;
1496 #if SC92031_USE_BAR == 0
1497 base_addr = dev->mem_start;
1498 #elif SC92031_USE_BAR == 1
1499 base_addr = dev->base_addr;
1501 printk(KERN_INFO "%s: SC92031 at 0x%lx, %pM, IRQ %d\n", dev->name,
1502 base_addr, dev->dev_addr, dev->irq);
1506 out_register_netdev:
1509 pci_iounmap(pdev, port_base);
1511 pci_release_regions(pdev);
1512 out_request_regions:
1514 pci_disable_device(pdev);
1519 static void __devexit sc92031_remove(struct pci_dev *pdev)
1521 struct net_device *dev = pci_get_drvdata(pdev);
1522 struct sc92031_priv *priv = netdev_priv(dev);
1523 void __iomem* port_base = priv->port_base;
1525 unregister_netdev(dev);
1527 pci_iounmap(pdev, port_base);
1528 pci_release_regions(pdev);
1529 pci_disable_device(pdev);
1532 static int sc92031_suspend(struct pci_dev *pdev, pm_message_t state)
1534 struct net_device *dev = pci_get_drvdata(pdev);
1535 struct sc92031_priv *priv = netdev_priv(dev);
1537 pci_save_state(pdev);
1539 if (!netif_running(dev))
1542 netif_device_detach(dev);
1544 /* Disable interrupts, stop Tx and Rx. */
1545 sc92031_disable_interrupts(dev);
1547 spin_lock_bh(&priv->lock);
1549 _sc92031_disable_tx_rx(dev);
1550 _sc92031_tx_clear(dev);
1553 spin_unlock_bh(&priv->lock);
1556 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1561 static int sc92031_resume(struct pci_dev *pdev)
1563 struct net_device *dev = pci_get_drvdata(pdev);
1564 struct sc92031_priv *priv = netdev_priv(dev);
1566 pci_restore_state(pdev);
1567 pci_set_power_state(pdev, PCI_D0);
1569 if (!netif_running(dev))
1572 /* Interrupts already disabled by sc92031_suspend */
1573 spin_lock_bh(&priv->lock);
1575 _sc92031_reset(dev);
1578 spin_unlock_bh(&priv->lock);
1579 sc92031_enable_interrupts(dev);
1581 netif_device_attach(dev);
1583 if (netif_carrier_ok(dev))
1584 netif_wake_queue(dev);
1586 netif_tx_disable(dev);
1592 static DEFINE_PCI_DEVICE_TABLE(sc92031_pci_device_id_table) = {
1593 { PCI_DEVICE(PCI_VENDOR_ID_SILAN, 0x2031) },
1594 { PCI_DEVICE(PCI_VENDOR_ID_SILAN, 0x8139) },
1595 { PCI_DEVICE(0x1088, 0x2031) },
1598 MODULE_DEVICE_TABLE(pci, sc92031_pci_device_id_table);
1600 static struct pci_driver sc92031_pci_driver = {
1601 .name = SC92031_NAME,
1602 .id_table = sc92031_pci_device_id_table,
1603 .probe = sc92031_probe,
1604 .remove = __devexit_p(sc92031_remove),
1605 .suspend = sc92031_suspend,
1606 .resume = sc92031_resume,
1609 static int __init sc92031_init(void)
1611 return pci_register_driver(&sc92031_pci_driver);
1614 static void __exit sc92031_exit(void)
1616 pci_unregister_driver(&sc92031_pci_driver);
1619 module_init(sc92031_init);
1620 module_exit(sc92031_exit);
1622 MODULE_LICENSE("GPL");
1623 MODULE_AUTHOR("Cesar Eduardo Barros <cesarb@cesarb.net>");
1624 MODULE_DESCRIPTION("Silan SC92031 PCI Fast Ethernet Adapter driver");