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09c434b8 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
bf345707 CEB |
2 | /* Silan SC92031 PCI Fast Ethernet Adapter driver |
3 | * | |
4 | * Based on vendor drivers: | |
5 | * Silan Fast Ethernet Netcard Driver: | |
6 | * MODULE_AUTHOR ("gaoyonghong"); | |
7 | * MODULE_DESCRIPTION ("SILAN Fast Ethernet driver"); | |
8 | * MODULE_LICENSE("GPL"); | |
9 | * 8139D Fast Ethernet driver: | |
10 | * (C) 2002 by gaoyonghong | |
11 | * MODULE_AUTHOR ("gaoyonghong"); | |
12 | * MODULE_DESCRIPTION ("Rsltek 8139D PCI Fast Ethernet Adapter driver"); | |
13 | * MODULE_LICENSE("GPL"); | |
14 | * Both are almost identical and seem to be based on pci-skeleton.c | |
15 | * | |
16 | * Rewritten for 2.6 by Cesar Eduardo Barros | |
627af770 CEB |
17 | * |
18 | * A datasheet for this chip can be found at | |
631dd1a8 | 19 | * http://www.silan.com.cn/english/product/pdf/SC92031AY.pdf |
bf345707 CEB |
20 | */ |
21 | ||
22 | /* Note about set_mac_address: I don't know how to change the hardware | |
23 | * matching, so you need to enable IFF_PROMISC when using it. | |
24 | */ | |
25 | ||
a6b7a407 | 26 | #include <linux/interrupt.h> |
bf345707 CEB |
27 | #include <linux/module.h> |
28 | #include <linux/kernel.h> | |
29 | #include <linux/delay.h> | |
30 | #include <linux/pci.h> | |
31 | #include <linux/dma-mapping.h> | |
32 | #include <linux/netdevice.h> | |
33 | #include <linux/etherdevice.h> | |
34 | #include <linux/ethtool.h> | |
3235de16 | 35 | #include <linux/mii.h> |
bf345707 CEB |
36 | #include <linux/crc32.h> |
37 | ||
38 | #include <asm/irq.h> | |
39 | ||
bf345707 | 40 | #define SC92031_NAME "sc92031" |
bf345707 CEB |
41 | |
42 | /* BAR 0 is MMIO, BAR 1 is PIO */ | |
c4a9f085 | 43 | #define SC92031_USE_PIO 0 |
bf345707 CEB |
44 | |
45 | /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). */ | |
46 | static int multicast_filter_limit = 64; | |
47 | module_param(multicast_filter_limit, int, 0); | |
48 | MODULE_PARM_DESC(multicast_filter_limit, | |
49 | "Maximum number of filtered multicast addresses"); | |
50 | ||
51 | static int media; | |
52 | module_param(media, int, 0); | |
53 | MODULE_PARM_DESC(media, "Media type (0x00 = autodetect," | |
54 | " 0x01 = 10M half, 0x02 = 10M full," | |
55 | " 0x04 = 100M half, 0x08 = 100M full)"); | |
56 | ||
57 | /* Size of the in-memory receive ring. */ | |
58 | #define RX_BUF_LEN_IDX 3 /* 0==8K, 1==16K, 2==32K, 3==64K ,4==128K*/ | |
59 | #define RX_BUF_LEN (8192 << RX_BUF_LEN_IDX) | |
60 | ||
61 | /* Number of Tx descriptor registers. */ | |
62 | #define NUM_TX_DESC 4 | |
63 | ||
64 | /* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/ | |
65 | #define MAX_ETH_FRAME_SIZE 1536 | |
66 | ||
67 | /* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */ | |
68 | #define TX_BUF_SIZE MAX_ETH_FRAME_SIZE | |
69 | #define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC) | |
70 | ||
71 | /* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */ | |
72 | #define RX_FIFO_THRESH 7 /* Rx buffer level before first PCI xfer. */ | |
73 | ||
74 | /* Time in jiffies before concluding the transmitter is hung. */ | |
75 | #define TX_TIMEOUT (4*HZ) | |
76 | ||
77 | #define SILAN_STATS_NUM 2 /* number of ETHTOOL_GSTATS */ | |
78 | ||
79 | /* media options */ | |
80 | #define AUTOSELECT 0x00 | |
81 | #define M10_HALF 0x01 | |
82 | #define M10_FULL 0x02 | |
83 | #define M100_HALF 0x04 | |
84 | #define M100_FULL 0x08 | |
85 | ||
86 | /* Symbolic offsets to registers. */ | |
87 | enum silan_registers { | |
88 | Config0 = 0x00, // Config0 | |
89 | Config1 = 0x04, // Config1 | |
90 | RxBufWPtr = 0x08, // Rx buffer writer poiter | |
91 | IntrStatus = 0x0C, // Interrupt status | |
92 | IntrMask = 0x10, // Interrupt mask | |
93 | RxbufAddr = 0x14, // Rx buffer start address | |
94 | RxBufRPtr = 0x18, // Rx buffer read pointer | |
95 | Txstatusall = 0x1C, // Transmit status of all descriptors | |
96 | TxStatus0 = 0x20, // Transmit status (Four 32bit registers). | |
97 | TxAddr0 = 0x30, // Tx descriptors (also four 32bit). | |
98 | RxConfig = 0x40, // Rx configuration | |
99 | MAC0 = 0x44, // Ethernet hardware address. | |
100 | MAR0 = 0x4C, // Multicast filter. | |
101 | RxStatus0 = 0x54, // Rx status | |
102 | TxConfig = 0x5C, // Tx configuration | |
103 | PhyCtrl = 0x60, // physical control | |
104 | FlowCtrlConfig = 0x64, // flow control | |
105 | Miicmd0 = 0x68, // Mii command0 register | |
106 | Miicmd1 = 0x6C, // Mii command1 register | |
107 | Miistatus = 0x70, // Mii status register | |
108 | Timercnt = 0x74, // Timer counter register | |
109 | TimerIntr = 0x78, // Timer interrupt register | |
110 | PMConfig = 0x7C, // Power Manager configuration | |
111 | CRC0 = 0x80, // Power Manager CRC ( Two 32bit regisers) | |
112 | Wakeup0 = 0x88, // power Manager wakeup( Eight 64bit regiser) | |
113 | LSBCRC0 = 0xC8, // power Manager LSBCRC(Two 32bit regiser) | |
114 | TestD0 = 0xD0, | |
115 | TestD4 = 0xD4, | |
116 | TestD8 = 0xD8, | |
117 | }; | |
118 | ||
bf345707 CEB |
119 | #define MII_JAB 16 |
120 | #define MII_OutputStatus 24 | |
121 | ||
bf345707 CEB |
122 | #define PHY_16_JAB_ENB 0x1000 |
123 | #define PHY_16_PORT_ENB 0x1 | |
124 | ||
125 | enum IntrStatusBits { | |
126 | LinkFail = 0x80000000, | |
127 | LinkOK = 0x40000000, | |
128 | TimeOut = 0x20000000, | |
129 | RxOverflow = 0x0040, | |
130 | RxOK = 0x0020, | |
131 | TxOK = 0x0001, | |
132 | IntrBits = LinkFail|LinkOK|TimeOut|RxOverflow|RxOK|TxOK, | |
133 | }; | |
134 | ||
135 | enum TxStatusBits { | |
136 | TxCarrierLost = 0x20000000, | |
137 | TxAborted = 0x10000000, | |
138 | TxOutOfWindow = 0x08000000, | |
139 | TxNccShift = 22, | |
140 | EarlyTxThresShift = 16, | |
141 | TxStatOK = 0x8000, | |
142 | TxUnderrun = 0x4000, | |
143 | TxOwn = 0x2000, | |
144 | }; | |
145 | ||
146 | enum RxStatusBits { | |
147 | RxStatesOK = 0x80000, | |
148 | RxBadAlign = 0x40000, | |
149 | RxHugeFrame = 0x20000, | |
150 | RxSmallFrame = 0x10000, | |
151 | RxCRCOK = 0x8000, | |
152 | RxCrlFrame = 0x4000, | |
153 | Rx_Broadcast = 0x2000, | |
154 | Rx_Multicast = 0x1000, | |
155 | RxAddrMatch = 0x0800, | |
156 | MiiErr = 0x0400, | |
157 | }; | |
158 | ||
159 | enum RxConfigBits { | |
160 | RxFullDx = 0x80000000, | |
161 | RxEnb = 0x40000000, | |
162 | RxSmall = 0x20000000, | |
163 | RxHuge = 0x10000000, | |
164 | RxErr = 0x08000000, | |
165 | RxAllphys = 0x04000000, | |
166 | RxMulticast = 0x02000000, | |
167 | RxBroadcast = 0x01000000, | |
168 | RxLoopBack = (1 << 23) | (1 << 22), | |
169 | LowThresholdShift = 12, | |
170 | HighThresholdShift = 2, | |
171 | }; | |
172 | ||
173 | enum TxConfigBits { | |
174 | TxFullDx = 0x80000000, | |
175 | TxEnb = 0x40000000, | |
176 | TxEnbPad = 0x20000000, | |
177 | TxEnbHuge = 0x10000000, | |
178 | TxEnbFCS = 0x08000000, | |
179 | TxNoBackOff = 0x04000000, | |
180 | TxEnbPrem = 0x02000000, | |
181 | TxCareLostCrs = 0x1000000, | |
182 | TxExdCollNum = 0xf00000, | |
183 | TxDataRate = 0x80000, | |
184 | }; | |
185 | ||
186 | enum PhyCtrlconfigbits { | |
187 | PhyCtrlAne = 0x80000000, | |
188 | PhyCtrlSpd100 = 0x40000000, | |
189 | PhyCtrlSpd10 = 0x20000000, | |
190 | PhyCtrlPhyBaseAddr = 0x1f000000, | |
191 | PhyCtrlDux = 0x800000, | |
192 | PhyCtrlReset = 0x400000, | |
193 | }; | |
194 | ||
195 | enum FlowCtrlConfigBits { | |
196 | FlowCtrlFullDX = 0x80000000, | |
197 | FlowCtrlEnb = 0x40000000, | |
198 | }; | |
199 | ||
200 | enum Config0Bits { | |
201 | Cfg0_Reset = 0x80000000, | |
202 | Cfg0_Anaoff = 0x40000000, | |
203 | Cfg0_LDPS = 0x20000000, | |
204 | }; | |
205 | ||
206 | enum Config1Bits { | |
207 | Cfg1_EarlyRx = 1 << 31, | |
208 | Cfg1_EarlyTx = 1 << 30, | |
209 | ||
210 | //rx buffer size | |
211 | Cfg1_Rcv8K = 0x0, | |
212 | Cfg1_Rcv16K = 0x1, | |
213 | Cfg1_Rcv32K = 0x3, | |
214 | Cfg1_Rcv64K = 0x7, | |
215 | Cfg1_Rcv128K = 0xf, | |
216 | }; | |
217 | ||
218 | enum MiiCmd0Bits { | |
219 | Mii_Divider = 0x20000000, | |
220 | Mii_WRITE = 0x400000, | |
221 | Mii_READ = 0x200000, | |
222 | Mii_SCAN = 0x100000, | |
223 | Mii_Tamod = 0x80000, | |
224 | Mii_Drvmod = 0x40000, | |
225 | Mii_mdc = 0x20000, | |
226 | Mii_mdoen = 0x10000, | |
227 | Mii_mdo = 0x8000, | |
228 | Mii_mdi = 0x4000, | |
229 | }; | |
230 | ||
231 | enum MiiStatusBits { | |
232 | Mii_StatusBusy = 0x80000000, | |
233 | }; | |
234 | ||
235 | enum PMConfigBits { | |
236 | PM_Enable = 1 << 31, | |
237 | PM_LongWF = 1 << 30, | |
238 | PM_Magic = 1 << 29, | |
239 | PM_LANWake = 1 << 28, | |
240 | PM_LWPTN = (1 << 27 | 1<< 26), | |
241 | PM_LinkUp = 1 << 25, | |
242 | PM_WakeUp = 1 << 24, | |
243 | }; | |
244 | ||
245 | /* Locking rules: | |
246 | * priv->lock protects most of the fields of priv and most of the | |
247 | * hardware registers. It does not have to protect against softirqs | |
248 | * between sc92031_disable_interrupts and sc92031_enable_interrupts; | |
249 | * it also does not need to be used in ->open and ->stop while the | |
250 | * device interrupts are off. | |
251 | * Not having to protect against softirqs is very useful due to heavy | |
252 | * use of mdelay() at _sc92031_reset. | |
253 | * Functions prefixed with _sc92031_ must be called with the lock held; | |
254 | * functions prefixed with sc92031_ must be called without the lock held. | |
bf345707 CEB |
255 | */ |
256 | ||
257 | /* Locking rules for the interrupt: | |
258 | * - the interrupt and the tasklet never run at the same time | |
259 | * - neither run between sc92031_disable_interrupts and | |
260 | * sc92031_enable_interrupt | |
261 | */ | |
262 | ||
263 | struct sc92031_priv { | |
264 | spinlock_t lock; | |
265 | /* iomap.h cookie */ | |
266 | void __iomem *port_base; | |
267 | /* pci device structure */ | |
268 | struct pci_dev *pdev; | |
269 | /* tasklet */ | |
270 | struct tasklet_struct tasklet; | |
271 | ||
272 | /* CPU address of rx ring */ | |
273 | void *rx_ring; | |
274 | /* PCI address of rx ring */ | |
275 | dma_addr_t rx_ring_dma_addr; | |
276 | /* PCI address of rx ring read pointer */ | |
277 | dma_addr_t rx_ring_tail; | |
278 | ||
279 | /* tx ring write index */ | |
280 | unsigned tx_head; | |
281 | /* tx ring read index */ | |
282 | unsigned tx_tail; | |
283 | /* CPU address of tx bounce buffer */ | |
284 | void *tx_bufs; | |
285 | /* PCI address of tx bounce buffer */ | |
286 | dma_addr_t tx_bufs_dma_addr; | |
287 | ||
288 | /* copies of some hardware registers */ | |
289 | u32 intr_status; | |
290 | atomic_t intr_mask; | |
291 | u32 rx_config; | |
292 | u32 tx_config; | |
293 | u32 pm_config; | |
294 | ||
295 | /* copy of some flags from dev->flags */ | |
296 | unsigned int mc_flags; | |
297 | ||
298 | /* for ETHTOOL_GSTATS */ | |
299 | u64 tx_timeouts; | |
300 | u64 rx_loss; | |
301 | ||
302 | /* for dev->get_stats */ | |
303 | long rx_value; | |
271f278d | 304 | struct net_device *ndev; |
bf345707 CEB |
305 | }; |
306 | ||
307 | /* I don't know which registers can be safely read; however, I can guess | |
308 | * MAC0 is one of them. */ | |
309 | static inline void _sc92031_dummy_read(void __iomem *port_base) | |
310 | { | |
311 | ioread32(port_base + MAC0); | |
312 | } | |
313 | ||
314 | static u32 _sc92031_mii_wait(void __iomem *port_base) | |
315 | { | |
316 | u32 mii_status; | |
317 | ||
318 | do { | |
319 | udelay(10); | |
320 | mii_status = ioread32(port_base + Miistatus); | |
321 | } while (mii_status & Mii_StatusBusy); | |
322 | ||
323 | return mii_status; | |
324 | } | |
325 | ||
326 | static u32 _sc92031_mii_cmd(void __iomem *port_base, u32 cmd0, u32 cmd1) | |
327 | { | |
328 | iowrite32(Mii_Divider, port_base + Miicmd0); | |
329 | ||
330 | _sc92031_mii_wait(port_base); | |
331 | ||
332 | iowrite32(cmd1, port_base + Miicmd1); | |
333 | iowrite32(Mii_Divider | cmd0, port_base + Miicmd0); | |
334 | ||
335 | return _sc92031_mii_wait(port_base); | |
336 | } | |
337 | ||
338 | static void _sc92031_mii_scan(void __iomem *port_base) | |
339 | { | |
340 | _sc92031_mii_cmd(port_base, Mii_SCAN, 0x1 << 6); | |
341 | } | |
342 | ||
343 | static u16 _sc92031_mii_read(void __iomem *port_base, unsigned reg) | |
344 | { | |
345 | return _sc92031_mii_cmd(port_base, Mii_READ, reg << 6) >> 13; | |
346 | } | |
347 | ||
348 | static void _sc92031_mii_write(void __iomem *port_base, unsigned reg, u16 val) | |
349 | { | |
350 | _sc92031_mii_cmd(port_base, Mii_WRITE, (reg << 6) | ((u32)val << 11)); | |
351 | } | |
352 | ||
353 | static void sc92031_disable_interrupts(struct net_device *dev) | |
354 | { | |
355 | struct sc92031_priv *priv = netdev_priv(dev); | |
356 | void __iomem *port_base = priv->port_base; | |
357 | ||
358 | /* tell the tasklet/interrupt not to enable interrupts */ | |
359 | atomic_set(&priv->intr_mask, 0); | |
360 | wmb(); | |
361 | ||
362 | /* stop interrupts */ | |
363 | iowrite32(0, port_base + IntrMask); | |
364 | _sc92031_dummy_read(port_base); | |
bf345707 CEB |
365 | |
366 | /* wait for any concurrent interrupt/tasklet to finish */ | |
c4a9f085 | 367 | synchronize_irq(priv->pdev->irq); |
bf345707 CEB |
368 | tasklet_disable(&priv->tasklet); |
369 | } | |
370 | ||
371 | static void sc92031_enable_interrupts(struct net_device *dev) | |
372 | { | |
373 | struct sc92031_priv *priv = netdev_priv(dev); | |
374 | void __iomem *port_base = priv->port_base; | |
375 | ||
376 | tasklet_enable(&priv->tasklet); | |
377 | ||
378 | atomic_set(&priv->intr_mask, IntrBits); | |
379 | wmb(); | |
380 | ||
381 | iowrite32(IntrBits, port_base + IntrMask); | |
bf345707 CEB |
382 | } |
383 | ||
384 | static void _sc92031_disable_tx_rx(struct net_device *dev) | |
385 | { | |
386 | struct sc92031_priv *priv = netdev_priv(dev); | |
387 | void __iomem *port_base = priv->port_base; | |
388 | ||
389 | priv->rx_config &= ~RxEnb; | |
390 | priv->tx_config &= ~TxEnb; | |
391 | iowrite32(priv->rx_config, port_base + RxConfig); | |
392 | iowrite32(priv->tx_config, port_base + TxConfig); | |
393 | } | |
394 | ||
395 | static void _sc92031_enable_tx_rx(struct net_device *dev) | |
396 | { | |
397 | struct sc92031_priv *priv = netdev_priv(dev); | |
398 | void __iomem *port_base = priv->port_base; | |
399 | ||
400 | priv->rx_config |= RxEnb; | |
401 | priv->tx_config |= TxEnb; | |
402 | iowrite32(priv->rx_config, port_base + RxConfig); | |
403 | iowrite32(priv->tx_config, port_base + TxConfig); | |
404 | } | |
405 | ||
406 | static void _sc92031_tx_clear(struct net_device *dev) | |
407 | { | |
408 | struct sc92031_priv *priv = netdev_priv(dev); | |
409 | ||
410 | while (priv->tx_head - priv->tx_tail > 0) { | |
411 | priv->tx_tail++; | |
9c28eaea | 412 | dev->stats.tx_dropped++; |
bf345707 CEB |
413 | } |
414 | priv->tx_head = priv->tx_tail = 0; | |
415 | } | |
416 | ||
417 | static void _sc92031_set_mar(struct net_device *dev) | |
418 | { | |
419 | struct sc92031_priv *priv = netdev_priv(dev); | |
420 | void __iomem *port_base = priv->port_base; | |
421 | u32 mar0 = 0, mar1 = 0; | |
422 | ||
8e95a202 | 423 | if ((dev->flags & IFF_PROMISC) || |
4cd24eaf | 424 | netdev_mc_count(dev) > multicast_filter_limit || |
8e95a202 | 425 | (dev->flags & IFF_ALLMULTI)) |
bf345707 CEB |
426 | mar0 = mar1 = 0xffffffff; |
427 | else if (dev->flags & IFF_MULTICAST) { | |
22bedad3 | 428 | struct netdev_hw_addr *ha; |
bf345707 | 429 | |
22bedad3 | 430 | netdev_for_each_mc_addr(ha, dev) { |
bf345707 CEB |
431 | u32 crc; |
432 | unsigned bit = 0; | |
433 | ||
22bedad3 | 434 | crc = ~ether_crc(ETH_ALEN, ha->addr); |
bf345707 CEB |
435 | crc >>= 24; |
436 | ||
437 | if (crc & 0x01) bit |= 0x02; | |
438 | if (crc & 0x02) bit |= 0x01; | |
439 | if (crc & 0x10) bit |= 0x20; | |
440 | if (crc & 0x20) bit |= 0x10; | |
441 | if (crc & 0x40) bit |= 0x08; | |
442 | if (crc & 0x80) bit |= 0x04; | |
443 | ||
444 | if (bit > 31) | |
445 | mar0 |= 0x1 << (bit - 32); | |
446 | else | |
447 | mar1 |= 0x1 << bit; | |
448 | } | |
449 | } | |
450 | ||
451 | iowrite32(mar0, port_base + MAR0); | |
452 | iowrite32(mar1, port_base + MAR0 + 4); | |
453 | } | |
454 | ||
455 | static void _sc92031_set_rx_config(struct net_device *dev) | |
456 | { | |
457 | struct sc92031_priv *priv = netdev_priv(dev); | |
458 | void __iomem *port_base = priv->port_base; | |
459 | unsigned int old_mc_flags; | |
460 | u32 rx_config_bits = 0; | |
461 | ||
462 | old_mc_flags = priv->mc_flags; | |
463 | ||
464 | if (dev->flags & IFF_PROMISC) | |
465 | rx_config_bits |= RxSmall | RxHuge | RxErr | RxBroadcast | |
466 | | RxMulticast | RxAllphys; | |
467 | ||
468 | if (dev->flags & (IFF_ALLMULTI | IFF_MULTICAST)) | |
469 | rx_config_bits |= RxMulticast; | |
470 | ||
471 | if (dev->flags & IFF_BROADCAST) | |
472 | rx_config_bits |= RxBroadcast; | |
473 | ||
474 | priv->rx_config &= ~(RxSmall | RxHuge | RxErr | RxBroadcast | |
475 | | RxMulticast | RxAllphys); | |
476 | priv->rx_config |= rx_config_bits; | |
477 | ||
478 | priv->mc_flags = dev->flags & (IFF_PROMISC | IFF_ALLMULTI | |
479 | | IFF_MULTICAST | IFF_BROADCAST); | |
480 | ||
481 | if (netif_carrier_ok(dev) && priv->mc_flags != old_mc_flags) | |
482 | iowrite32(priv->rx_config, port_base + RxConfig); | |
483 | } | |
484 | ||
485 | static bool _sc92031_check_media(struct net_device *dev) | |
486 | { | |
487 | struct sc92031_priv *priv = netdev_priv(dev); | |
488 | void __iomem *port_base = priv->port_base; | |
489 | u16 bmsr; | |
490 | ||
491 | bmsr = _sc92031_mii_read(port_base, MII_BMSR); | |
492 | rmb(); | |
493 | if (bmsr & BMSR_LSTATUS) { | |
494 | bool speed_100, duplex_full; | |
495 | u32 flow_ctrl_config = 0; | |
496 | u16 output_status = _sc92031_mii_read(port_base, | |
497 | MII_OutputStatus); | |
498 | _sc92031_mii_scan(port_base); | |
499 | ||
500 | speed_100 = output_status & 0x2; | |
501 | duplex_full = output_status & 0x4; | |
502 | ||
503 | /* Initial Tx/Rx configuration */ | |
504 | priv->rx_config = (0x40 << LowThresholdShift) | (0x1c0 << HighThresholdShift); | |
505 | priv->tx_config = 0x48800000; | |
506 | ||
507 | /* NOTE: vendor driver had dead code here to enable tx padding */ | |
508 | ||
509 | if (!speed_100) | |
510 | priv->tx_config |= 0x80000; | |
511 | ||
512 | // configure rx mode | |
513 | _sc92031_set_rx_config(dev); | |
514 | ||
515 | if (duplex_full) { | |
516 | priv->rx_config |= RxFullDx; | |
517 | priv->tx_config |= TxFullDx; | |
518 | flow_ctrl_config = FlowCtrlFullDX | FlowCtrlEnb; | |
519 | } else { | |
520 | priv->rx_config &= ~RxFullDx; | |
521 | priv->tx_config &= ~TxFullDx; | |
522 | } | |
523 | ||
524 | _sc92031_set_mar(dev); | |
525 | _sc92031_set_rx_config(dev); | |
526 | _sc92031_enable_tx_rx(dev); | |
527 | iowrite32(flow_ctrl_config, port_base + FlowCtrlConfig); | |
528 | ||
529 | netif_carrier_on(dev); | |
530 | ||
531 | if (printk_ratelimit()) | |
532 | printk(KERN_INFO "%s: link up, %sMbps, %s-duplex\n", | |
533 | dev->name, | |
534 | speed_100 ? "100" : "10", | |
535 | duplex_full ? "full" : "half"); | |
536 | return true; | |
537 | } else { | |
538 | _sc92031_mii_scan(port_base); | |
539 | ||
540 | netif_carrier_off(dev); | |
541 | ||
542 | _sc92031_disable_tx_rx(dev); | |
543 | ||
544 | if (printk_ratelimit()) | |
545 | printk(KERN_INFO "%s: link down\n", dev->name); | |
546 | return false; | |
547 | } | |
548 | } | |
549 | ||
550 | static void _sc92031_phy_reset(struct net_device *dev) | |
551 | { | |
552 | struct sc92031_priv *priv = netdev_priv(dev); | |
553 | void __iomem *port_base = priv->port_base; | |
554 | u32 phy_ctrl; | |
555 | ||
556 | phy_ctrl = ioread32(port_base + PhyCtrl); | |
557 | phy_ctrl &= ~(PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10); | |
558 | phy_ctrl |= PhyCtrlAne | PhyCtrlReset; | |
559 | ||
560 | switch (media) { | |
561 | default: | |
562 | case AUTOSELECT: | |
563 | phy_ctrl |= PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10; | |
564 | break; | |
565 | case M10_HALF: | |
566 | phy_ctrl |= PhyCtrlSpd10; | |
567 | break; | |
568 | case M10_FULL: | |
569 | phy_ctrl |= PhyCtrlDux | PhyCtrlSpd10; | |
570 | break; | |
571 | case M100_HALF: | |
572 | phy_ctrl |= PhyCtrlSpd100; | |
573 | break; | |
574 | case M100_FULL: | |
575 | phy_ctrl |= PhyCtrlDux | PhyCtrlSpd100; | |
576 | break; | |
577 | } | |
578 | ||
579 | iowrite32(phy_ctrl, port_base + PhyCtrl); | |
580 | mdelay(10); | |
581 | ||
582 | phy_ctrl &= ~PhyCtrlReset; | |
583 | iowrite32(phy_ctrl, port_base + PhyCtrl); | |
584 | mdelay(1); | |
585 | ||
586 | _sc92031_mii_write(port_base, MII_JAB, | |
587 | PHY_16_JAB_ENB | PHY_16_PORT_ENB); | |
588 | _sc92031_mii_scan(port_base); | |
589 | ||
590 | netif_carrier_off(dev); | |
591 | netif_stop_queue(dev); | |
592 | } | |
593 | ||
594 | static void _sc92031_reset(struct net_device *dev) | |
595 | { | |
596 | struct sc92031_priv *priv = netdev_priv(dev); | |
597 | void __iomem *port_base = priv->port_base; | |
598 | ||
599 | /* disable PM */ | |
600 | iowrite32(0, port_base + PMConfig); | |
601 | ||
602 | /* soft reset the chip */ | |
603 | iowrite32(Cfg0_Reset, port_base + Config0); | |
604 | mdelay(200); | |
605 | ||
606 | iowrite32(0, port_base + Config0); | |
607 | mdelay(10); | |
608 | ||
609 | /* disable interrupts */ | |
610 | iowrite32(0, port_base + IntrMask); | |
611 | ||
612 | /* clear multicast address */ | |
613 | iowrite32(0, port_base + MAR0); | |
614 | iowrite32(0, port_base + MAR0 + 4); | |
615 | ||
616 | /* init rx ring */ | |
617 | iowrite32(priv->rx_ring_dma_addr, port_base + RxbufAddr); | |
618 | priv->rx_ring_tail = priv->rx_ring_dma_addr; | |
619 | ||
620 | /* init tx ring */ | |
621 | _sc92031_tx_clear(dev); | |
622 | ||
623 | /* clear old register values */ | |
624 | priv->intr_status = 0; | |
625 | atomic_set(&priv->intr_mask, 0); | |
626 | priv->rx_config = 0; | |
627 | priv->tx_config = 0; | |
628 | priv->mc_flags = 0; | |
629 | ||
630 | /* configure rx buffer size */ | |
631 | /* NOTE: vendor driver had dead code here to enable early tx/rx */ | |
632 | iowrite32(Cfg1_Rcv64K, port_base + Config1); | |
633 | ||
634 | _sc92031_phy_reset(dev); | |
635 | _sc92031_check_media(dev); | |
636 | ||
637 | /* calculate rx fifo overflow */ | |
638 | priv->rx_value = 0; | |
639 | ||
640 | /* enable PM */ | |
641 | iowrite32(priv->pm_config, port_base + PMConfig); | |
642 | ||
643 | /* clear intr register */ | |
644 | ioread32(port_base + IntrStatus); | |
645 | } | |
646 | ||
647 | static void _sc92031_tx_tasklet(struct net_device *dev) | |
648 | { | |
649 | struct sc92031_priv *priv = netdev_priv(dev); | |
650 | void __iomem *port_base = priv->port_base; | |
651 | ||
652 | unsigned old_tx_tail; | |
653 | unsigned entry; | |
654 | u32 tx_status; | |
655 | ||
656 | old_tx_tail = priv->tx_tail; | |
657 | while (priv->tx_head - priv->tx_tail > 0) { | |
658 | entry = priv->tx_tail % NUM_TX_DESC; | |
659 | tx_status = ioread32(port_base + TxStatus0 + entry * 4); | |
660 | ||
661 | if (!(tx_status & (TxStatOK | TxUnderrun | TxAborted))) | |
662 | break; | |
663 | ||
664 | priv->tx_tail++; | |
665 | ||
666 | if (tx_status & TxStatOK) { | |
9c28eaea SH |
667 | dev->stats.tx_bytes += tx_status & 0x1fff; |
668 | dev->stats.tx_packets++; | |
bf345707 | 669 | /* Note: TxCarrierLost is always asserted at 100mbps. */ |
9c28eaea | 670 | dev->stats.collisions += (tx_status >> 22) & 0xf; |
bf345707 CEB |
671 | } |
672 | ||
673 | if (tx_status & (TxOutOfWindow | TxAborted)) { | |
9c28eaea | 674 | dev->stats.tx_errors++; |
bf345707 CEB |
675 | |
676 | if (tx_status & TxAborted) | |
9c28eaea | 677 | dev->stats.tx_aborted_errors++; |
bf345707 CEB |
678 | |
679 | if (tx_status & TxCarrierLost) | |
9c28eaea | 680 | dev->stats.tx_carrier_errors++; |
bf345707 CEB |
681 | |
682 | if (tx_status & TxOutOfWindow) | |
9c28eaea | 683 | dev->stats.tx_window_errors++; |
bf345707 CEB |
684 | } |
685 | ||
686 | if (tx_status & TxUnderrun) | |
9c28eaea | 687 | dev->stats.tx_fifo_errors++; |
bf345707 CEB |
688 | } |
689 | ||
690 | if (priv->tx_tail != old_tx_tail) | |
691 | if (netif_queue_stopped(dev)) | |
692 | netif_wake_queue(dev); | |
693 | } | |
694 | ||
9c28eaea SH |
695 | static void _sc92031_rx_tasklet_error(struct net_device *dev, |
696 | u32 rx_status, unsigned rx_size) | |
bf345707 CEB |
697 | { |
698 | if(rx_size > (MAX_ETH_FRAME_SIZE + 4) || rx_size < 16) { | |
9c28eaea SH |
699 | dev->stats.rx_errors++; |
700 | dev->stats.rx_length_errors++; | |
bf345707 CEB |
701 | } |
702 | ||
703 | if (!(rx_status & RxStatesOK)) { | |
9c28eaea | 704 | dev->stats.rx_errors++; |
bf345707 CEB |
705 | |
706 | if (rx_status & (RxHugeFrame | RxSmallFrame)) | |
9c28eaea | 707 | dev->stats.rx_length_errors++; |
bf345707 CEB |
708 | |
709 | if (rx_status & RxBadAlign) | |
9c28eaea | 710 | dev->stats.rx_frame_errors++; |
bf345707 CEB |
711 | |
712 | if (!(rx_status & RxCRCOK)) | |
9c28eaea SH |
713 | dev->stats.rx_crc_errors++; |
714 | } else { | |
715 | struct sc92031_priv *priv = netdev_priv(dev); | |
bf345707 | 716 | priv->rx_loss++; |
9c28eaea | 717 | } |
bf345707 CEB |
718 | } |
719 | ||
720 | static void _sc92031_rx_tasklet(struct net_device *dev) | |
721 | { | |
722 | struct sc92031_priv *priv = netdev_priv(dev); | |
723 | void __iomem *port_base = priv->port_base; | |
724 | ||
725 | dma_addr_t rx_ring_head; | |
726 | unsigned rx_len; | |
727 | unsigned rx_ring_offset; | |
728 | void *rx_ring = priv->rx_ring; | |
729 | ||
730 | rx_ring_head = ioread32(port_base + RxBufWPtr); | |
731 | rmb(); | |
732 | ||
733 | /* rx_ring_head is only 17 bits in the RxBufWPtr register. | |
734 | * we need to change it to 32 bits physical address | |
735 | */ | |
736 | rx_ring_head &= (dma_addr_t)(RX_BUF_LEN - 1); | |
737 | rx_ring_head |= priv->rx_ring_dma_addr & ~(dma_addr_t)(RX_BUF_LEN - 1); | |
738 | if (rx_ring_head < priv->rx_ring_dma_addr) | |
739 | rx_ring_head += RX_BUF_LEN; | |
740 | ||
741 | if (rx_ring_head >= priv->rx_ring_tail) | |
742 | rx_len = rx_ring_head - priv->rx_ring_tail; | |
743 | else | |
744 | rx_len = RX_BUF_LEN - (priv->rx_ring_tail - rx_ring_head); | |
745 | ||
746 | if (!rx_len) | |
747 | return; | |
748 | ||
749 | if (unlikely(rx_len > RX_BUF_LEN)) { | |
750 | if (printk_ratelimit()) | |
751 | printk(KERN_ERR "%s: rx packets length > rx buffer\n", | |
752 | dev->name); | |
753 | return; | |
754 | } | |
755 | ||
756 | rx_ring_offset = (priv->rx_ring_tail - priv->rx_ring_dma_addr) % RX_BUF_LEN; | |
757 | ||
758 | while (rx_len) { | |
759 | u32 rx_status; | |
760 | unsigned rx_size, rx_size_align, pkt_size; | |
761 | struct sk_buff *skb; | |
762 | ||
763 | rx_status = le32_to_cpup((__le32 *)(rx_ring + rx_ring_offset)); | |
764 | rmb(); | |
765 | ||
766 | rx_size = rx_status >> 20; | |
767 | rx_size_align = (rx_size + 3) & ~3; // for 4 bytes aligned | |
768 | pkt_size = rx_size - 4; // Omit the four octet CRC from the length. | |
769 | ||
770 | rx_ring_offset = (rx_ring_offset + 4) % RX_BUF_LEN; | |
771 | ||
8e95a202 JP |
772 | if (unlikely(rx_status == 0 || |
773 | rx_size > (MAX_ETH_FRAME_SIZE + 4) || | |
774 | rx_size < 16 || | |
775 | !(rx_status & RxStatesOK))) { | |
9c28eaea | 776 | _sc92031_rx_tasklet_error(dev, rx_status, rx_size); |
bf345707 CEB |
777 | break; |
778 | } | |
779 | ||
780 | if (unlikely(rx_size_align + 4 > rx_len)) { | |
781 | if (printk_ratelimit()) | |
782 | printk(KERN_ERR "%s: rx_len is too small\n", dev->name); | |
783 | break; | |
784 | } | |
785 | ||
786 | rx_len -= rx_size_align + 4; | |
787 | ||
89d71a66 | 788 | skb = netdev_alloc_skb_ip_align(dev, pkt_size); |
bf345707 CEB |
789 | if (unlikely(!skb)) { |
790 | if (printk_ratelimit()) | |
791 | printk(KERN_ERR "%s: Couldn't allocate a skb_buff for a packet of size %u\n", | |
792 | dev->name, pkt_size); | |
793 | goto next; | |
794 | } | |
795 | ||
bf345707 | 796 | if ((rx_ring_offset + pkt_size) > RX_BUF_LEN) { |
59ae1d12 JB |
797 | skb_put_data(skb, rx_ring + rx_ring_offset, |
798 | RX_BUF_LEN - rx_ring_offset); | |
799 | skb_put_data(skb, rx_ring, | |
800 | pkt_size - (RX_BUF_LEN - rx_ring_offset)); | |
bf345707 | 801 | } else { |
59ae1d12 | 802 | skb_put_data(skb, rx_ring + rx_ring_offset, pkt_size); |
bf345707 CEB |
803 | } |
804 | ||
bf345707 | 805 | skb->protocol = eth_type_trans(skb, dev); |
bf345707 CEB |
806 | netif_rx(skb); |
807 | ||
9c28eaea SH |
808 | dev->stats.rx_bytes += pkt_size; |
809 | dev->stats.rx_packets++; | |
bf345707 CEB |
810 | |
811 | if (rx_status & Rx_Multicast) | |
9c28eaea | 812 | dev->stats.multicast++; |
bf345707 CEB |
813 | |
814 | next: | |
815 | rx_ring_offset = (rx_ring_offset + rx_size_align) % RX_BUF_LEN; | |
816 | } | |
817 | mb(); | |
818 | ||
819 | priv->rx_ring_tail = rx_ring_head; | |
820 | iowrite32(priv->rx_ring_tail, port_base + RxBufRPtr); | |
821 | } | |
822 | ||
823 | static void _sc92031_link_tasklet(struct net_device *dev) | |
824 | { | |
bf345707 CEB |
825 | if (_sc92031_check_media(dev)) |
826 | netif_wake_queue(dev); | |
827 | else { | |
828 | netif_stop_queue(dev); | |
9c28eaea | 829 | dev->stats.tx_carrier_errors++; |
bf345707 CEB |
830 | } |
831 | } | |
832 | ||
271f278d | 833 | static void sc92031_tasklet(struct tasklet_struct *t) |
bf345707 | 834 | { |
271f278d AP |
835 | struct sc92031_priv *priv = from_tasklet(priv, t, tasklet); |
836 | struct net_device *dev = priv->ndev; | |
bf345707 CEB |
837 | void __iomem *port_base = priv->port_base; |
838 | u32 intr_status, intr_mask; | |
839 | ||
840 | intr_status = priv->intr_status; | |
841 | ||
842 | spin_lock(&priv->lock); | |
843 | ||
844 | if (unlikely(!netif_running(dev))) | |
845 | goto out; | |
846 | ||
847 | if (intr_status & TxOK) | |
848 | _sc92031_tx_tasklet(dev); | |
849 | ||
850 | if (intr_status & RxOK) | |
851 | _sc92031_rx_tasklet(dev); | |
852 | ||
853 | if (intr_status & RxOverflow) | |
9c28eaea | 854 | dev->stats.rx_errors++; |
bf345707 CEB |
855 | |
856 | if (intr_status & TimeOut) { | |
9c28eaea SH |
857 | dev->stats.rx_errors++; |
858 | dev->stats.rx_length_errors++; | |
bf345707 CEB |
859 | } |
860 | ||
861 | if (intr_status & (LinkFail | LinkOK)) | |
862 | _sc92031_link_tasklet(dev); | |
863 | ||
864 | out: | |
865 | intr_mask = atomic_read(&priv->intr_mask); | |
866 | rmb(); | |
867 | ||
868 | iowrite32(intr_mask, port_base + IntrMask); | |
bf345707 CEB |
869 | |
870 | spin_unlock(&priv->lock); | |
871 | } | |
872 | ||
873 | static irqreturn_t sc92031_interrupt(int irq, void *dev_id) | |
874 | { | |
875 | struct net_device *dev = dev_id; | |
876 | struct sc92031_priv *priv = netdev_priv(dev); | |
877 | void __iomem *port_base = priv->port_base; | |
878 | u32 intr_status, intr_mask; | |
879 | ||
880 | /* mask interrupts before clearing IntrStatus */ | |
881 | iowrite32(0, port_base + IntrMask); | |
882 | _sc92031_dummy_read(port_base); | |
883 | ||
884 | intr_status = ioread32(port_base + IntrStatus); | |
885 | if (unlikely(intr_status == 0xffffffff)) | |
886 | return IRQ_NONE; // hardware has gone missing | |
887 | ||
888 | intr_status &= IntrBits; | |
889 | if (!intr_status) | |
890 | goto out_none; | |
891 | ||
892 | priv->intr_status = intr_status; | |
893 | tasklet_schedule(&priv->tasklet); | |
894 | ||
895 | return IRQ_HANDLED; | |
896 | ||
897 | out_none: | |
898 | intr_mask = atomic_read(&priv->intr_mask); | |
899 | rmb(); | |
900 | ||
901 | iowrite32(intr_mask, port_base + IntrMask); | |
bf345707 CEB |
902 | |
903 | return IRQ_NONE; | |
904 | } | |
905 | ||
906 | static struct net_device_stats *sc92031_get_stats(struct net_device *dev) | |
907 | { | |
908 | struct sc92031_priv *priv = netdev_priv(dev); | |
909 | void __iomem *port_base = priv->port_base; | |
910 | ||
911 | // FIXME I do not understand what is this trying to do. | |
912 | if (netif_running(dev)) { | |
913 | int temp; | |
914 | ||
915 | spin_lock_bh(&priv->lock); | |
916 | ||
917 | /* Update the error count. */ | |
918 | temp = (ioread32(port_base + RxStatus0) >> 16) & 0xffff; | |
919 | ||
920 | if (temp == 0xffff) { | |
921 | priv->rx_value += temp; | |
9c28eaea SH |
922 | dev->stats.rx_fifo_errors = priv->rx_value; |
923 | } else | |
924 | dev->stats.rx_fifo_errors = temp + priv->rx_value; | |
bf345707 CEB |
925 | |
926 | spin_unlock_bh(&priv->lock); | |
927 | } | |
928 | ||
9c28eaea | 929 | return &dev->stats; |
bf345707 CEB |
930 | } |
931 | ||
61357325 SH |
932 | static netdev_tx_t sc92031_start_xmit(struct sk_buff *skb, |
933 | struct net_device *dev) | |
bf345707 | 934 | { |
bf345707 CEB |
935 | struct sc92031_priv *priv = netdev_priv(dev); |
936 | void __iomem *port_base = priv->port_base; | |
bf345707 CEB |
937 | unsigned len; |
938 | unsigned entry; | |
939 | u32 tx_status; | |
940 | ||
941 | if (unlikely(skb->len > TX_BUF_SIZE)) { | |
9c28eaea | 942 | dev->stats.tx_dropped++; |
bf345707 CEB |
943 | goto out; |
944 | } | |
945 | ||
699784b7 | 946 | spin_lock(&priv->lock); |
bf345707 CEB |
947 | |
948 | if (unlikely(!netif_carrier_ok(dev))) { | |
9c28eaea | 949 | dev->stats.tx_dropped++; |
bf345707 CEB |
950 | goto out_unlock; |
951 | } | |
952 | ||
953 | BUG_ON(priv->tx_head - priv->tx_tail >= NUM_TX_DESC); | |
954 | ||
955 | entry = priv->tx_head++ % NUM_TX_DESC; | |
956 | ||
957 | skb_copy_and_csum_dev(skb, priv->tx_bufs + entry * TX_BUF_SIZE); | |
958 | ||
959 | len = skb->len; | |
6f94f709 | 960 | if (len < ETH_ZLEN) { |
5a0a92e6 GR |
961 | memset(priv->tx_bufs + entry * TX_BUF_SIZE + len, |
962 | 0, ETH_ZLEN - len); | |
963 | len = ETH_ZLEN; | |
964 | } | |
bf345707 CEB |
965 | |
966 | wmb(); | |
967 | ||
968 | if (len < 100) | |
969 | tx_status = len; | |
970 | else if (len < 300) | |
971 | tx_status = 0x30000 | len; | |
972 | else | |
973 | tx_status = 0x50000 | len; | |
974 | ||
975 | iowrite32(priv->tx_bufs_dma_addr + entry * TX_BUF_SIZE, | |
976 | port_base + TxAddr0 + entry * 4); | |
977 | iowrite32(tx_status, port_base + TxStatus0 + entry * 4); | |
bf345707 | 978 | |
bf345707 CEB |
979 | if (priv->tx_head - priv->tx_tail >= NUM_TX_DESC) |
980 | netif_stop_queue(dev); | |
981 | ||
982 | out_unlock: | |
699784b7 | 983 | spin_unlock(&priv->lock); |
bf345707 CEB |
984 | |
985 | out: | |
9ebeac55 | 986 | dev_consume_skb_any(skb); |
bf345707 | 987 | |
26a17b7b | 988 | return NETDEV_TX_OK; |
bf345707 CEB |
989 | } |
990 | ||
991 | static int sc92031_open(struct net_device *dev) | |
992 | { | |
993 | int err; | |
994 | struct sc92031_priv *priv = netdev_priv(dev); | |
995 | struct pci_dev *pdev = priv->pdev; | |
996 | ||
3be4e289 CJ |
997 | priv->rx_ring = dma_alloc_coherent(&pdev->dev, RX_BUF_LEN, |
998 | &priv->rx_ring_dma_addr, GFP_KERNEL); | |
bf345707 CEB |
999 | if (unlikely(!priv->rx_ring)) { |
1000 | err = -ENOMEM; | |
1001 | goto out_alloc_rx_ring; | |
1002 | } | |
1003 | ||
3be4e289 CJ |
1004 | priv->tx_bufs = dma_alloc_coherent(&pdev->dev, TX_BUF_TOT_LEN, |
1005 | &priv->tx_bufs_dma_addr, GFP_KERNEL); | |
bf345707 CEB |
1006 | if (unlikely(!priv->tx_bufs)) { |
1007 | err = -ENOMEM; | |
1008 | goto out_alloc_tx_bufs; | |
1009 | } | |
1010 | priv->tx_head = priv->tx_tail = 0; | |
1011 | ||
1012 | err = request_irq(pdev->irq, sc92031_interrupt, | |
2db6346f | 1013 | IRQF_SHARED, dev->name, dev); |
bf345707 CEB |
1014 | if (unlikely(err < 0)) |
1015 | goto out_request_irq; | |
1016 | ||
1017 | priv->pm_config = 0; | |
1018 | ||
1019 | /* Interrupts already disabled by sc92031_stop or sc92031_probe */ | |
699784b7 | 1020 | spin_lock_bh(&priv->lock); |
bf345707 CEB |
1021 | |
1022 | _sc92031_reset(dev); | |
bf345707 | 1023 | |
699784b7 | 1024 | spin_unlock_bh(&priv->lock); |
bf345707 CEB |
1025 | sc92031_enable_interrupts(dev); |
1026 | ||
1027 | if (netif_carrier_ok(dev)) | |
1028 | netif_start_queue(dev); | |
1029 | else | |
1030 | netif_tx_disable(dev); | |
1031 | ||
1032 | return 0; | |
1033 | ||
1034 | out_request_irq: | |
3be4e289 CJ |
1035 | dma_free_coherent(&pdev->dev, TX_BUF_TOT_LEN, priv->tx_bufs, |
1036 | priv->tx_bufs_dma_addr); | |
bf345707 | 1037 | out_alloc_tx_bufs: |
3be4e289 CJ |
1038 | dma_free_coherent(&pdev->dev, RX_BUF_LEN, priv->rx_ring, |
1039 | priv->rx_ring_dma_addr); | |
bf345707 CEB |
1040 | out_alloc_rx_ring: |
1041 | return err; | |
1042 | } | |
1043 | ||
1044 | static int sc92031_stop(struct net_device *dev) | |
1045 | { | |
1046 | struct sc92031_priv *priv = netdev_priv(dev); | |
1047 | struct pci_dev *pdev = priv->pdev; | |
1048 | ||
1049 | netif_tx_disable(dev); | |
1050 | ||
1051 | /* Disable interrupts, stop Tx and Rx. */ | |
1052 | sc92031_disable_interrupts(dev); | |
1053 | ||
699784b7 | 1054 | spin_lock_bh(&priv->lock); |
bf345707 CEB |
1055 | |
1056 | _sc92031_disable_tx_rx(dev); | |
1057 | _sc92031_tx_clear(dev); | |
bf345707 | 1058 | |
699784b7 | 1059 | spin_unlock_bh(&priv->lock); |
bf345707 CEB |
1060 | |
1061 | free_irq(pdev->irq, dev); | |
3be4e289 CJ |
1062 | dma_free_coherent(&pdev->dev, TX_BUF_TOT_LEN, priv->tx_bufs, |
1063 | priv->tx_bufs_dma_addr); | |
1064 | dma_free_coherent(&pdev->dev, RX_BUF_LEN, priv->rx_ring, | |
1065 | priv->rx_ring_dma_addr); | |
bf345707 CEB |
1066 | |
1067 | return 0; | |
1068 | } | |
1069 | ||
1070 | static void sc92031_set_multicast_list(struct net_device *dev) | |
1071 | { | |
1072 | struct sc92031_priv *priv = netdev_priv(dev); | |
1073 | ||
1074 | spin_lock_bh(&priv->lock); | |
1075 | ||
1076 | _sc92031_set_mar(dev); | |
1077 | _sc92031_set_rx_config(dev); | |
bf345707 CEB |
1078 | |
1079 | spin_unlock_bh(&priv->lock); | |
1080 | } | |
1081 | ||
0290bd29 | 1082 | static void sc92031_tx_timeout(struct net_device *dev, unsigned int txqueue) |
bf345707 CEB |
1083 | { |
1084 | struct sc92031_priv *priv = netdev_priv(dev); | |
1085 | ||
1086 | /* Disable interrupts by clearing the interrupt mask.*/ | |
1087 | sc92031_disable_interrupts(dev); | |
1088 | ||
1089 | spin_lock(&priv->lock); | |
1090 | ||
1091 | priv->tx_timeouts++; | |
1092 | ||
1093 | _sc92031_reset(dev); | |
bf345707 CEB |
1094 | |
1095 | spin_unlock(&priv->lock); | |
1096 | ||
1097 | /* enable interrupts */ | |
1098 | sc92031_enable_interrupts(dev); | |
1099 | ||
1100 | if (netif_carrier_ok(dev)) | |
1101 | netif_wake_queue(dev); | |
1102 | } | |
1103 | ||
1104 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1105 | static void sc92031_poll_controller(struct net_device *dev) | |
1106 | { | |
c4a9f085 FR |
1107 | struct sc92031_priv *priv = netdev_priv(dev); |
1108 | const int irq = priv->pdev->irq; | |
1109 | ||
1110 | disable_irq(irq); | |
1111 | if (sc92031_interrupt(irq, dev) != IRQ_NONE) | |
271f278d | 1112 | sc92031_tasklet(&priv->tasklet); |
c4a9f085 | 1113 | enable_irq(irq); |
bf345707 CEB |
1114 | } |
1115 | #endif | |
1116 | ||
a972c306 PR |
1117 | static int |
1118 | sc92031_ethtool_get_link_ksettings(struct net_device *dev, | |
1119 | struct ethtool_link_ksettings *cmd) | |
bf345707 CEB |
1120 | { |
1121 | struct sc92031_priv *priv = netdev_priv(dev); | |
1122 | void __iomem *port_base = priv->port_base; | |
1123 | u8 phy_address; | |
1124 | u32 phy_ctrl; | |
1125 | u16 output_status; | |
a972c306 | 1126 | u32 supported, advertising; |
bf345707 CEB |
1127 | |
1128 | spin_lock_bh(&priv->lock); | |
1129 | ||
1130 | phy_address = ioread32(port_base + Miicmd1) >> 27; | |
1131 | phy_ctrl = ioread32(port_base + PhyCtrl); | |
1132 | ||
1133 | output_status = _sc92031_mii_read(port_base, MII_OutputStatus); | |
1134 | _sc92031_mii_scan(port_base); | |
bf345707 CEB |
1135 | |
1136 | spin_unlock_bh(&priv->lock); | |
1137 | ||
a972c306 | 1138 | supported = SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
bf345707 CEB |
1139 | | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full |
1140 | | SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII; | |
1141 | ||
a972c306 | 1142 | advertising = ADVERTISED_TP | ADVERTISED_MII; |
bf345707 CEB |
1143 | |
1144 | if ((phy_ctrl & (PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10)) | |
1145 | == (PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10)) | |
a972c306 | 1146 | advertising |= ADVERTISED_Autoneg; |
bf345707 CEB |
1147 | |
1148 | if ((phy_ctrl & PhyCtrlSpd10) == PhyCtrlSpd10) | |
a972c306 | 1149 | advertising |= ADVERTISED_10baseT_Half; |
bf345707 CEB |
1150 | |
1151 | if ((phy_ctrl & (PhyCtrlSpd10 | PhyCtrlDux)) | |
1152 | == (PhyCtrlSpd10 | PhyCtrlDux)) | |
a972c306 | 1153 | advertising |= ADVERTISED_10baseT_Full; |
bf345707 CEB |
1154 | |
1155 | if ((phy_ctrl & PhyCtrlSpd100) == PhyCtrlSpd100) | |
a972c306 | 1156 | advertising |= ADVERTISED_100baseT_Half; |
bf345707 CEB |
1157 | |
1158 | if ((phy_ctrl & (PhyCtrlSpd100 | PhyCtrlDux)) | |
1159 | == (PhyCtrlSpd100 | PhyCtrlDux)) | |
a972c306 | 1160 | advertising |= ADVERTISED_100baseT_Full; |
bf345707 CEB |
1161 | |
1162 | if (phy_ctrl & PhyCtrlAne) | |
a972c306 | 1163 | advertising |= ADVERTISED_Autoneg; |
bf345707 | 1164 | |
a972c306 PR |
1165 | cmd->base.speed = (output_status & 0x2) ? SPEED_100 : SPEED_10; |
1166 | cmd->base.duplex = (output_status & 0x4) ? DUPLEX_FULL : DUPLEX_HALF; | |
1167 | cmd->base.port = PORT_MII; | |
1168 | cmd->base.phy_address = phy_address; | |
1169 | cmd->base.autoneg = (phy_ctrl & PhyCtrlAne) ? | |
1170 | AUTONEG_ENABLE : AUTONEG_DISABLE; | |
1171 | ||
1172 | ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, | |
1173 | supported); | |
1174 | ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, | |
1175 | advertising); | |
bf345707 CEB |
1176 | |
1177 | return 0; | |
1178 | } | |
1179 | ||
a972c306 PR |
1180 | static int |
1181 | sc92031_ethtool_set_link_ksettings(struct net_device *dev, | |
1182 | const struct ethtool_link_ksettings *cmd) | |
bf345707 CEB |
1183 | { |
1184 | struct sc92031_priv *priv = netdev_priv(dev); | |
1185 | void __iomem *port_base = priv->port_base; | |
a972c306 | 1186 | u32 speed = cmd->base.speed; |
bf345707 CEB |
1187 | u32 phy_ctrl; |
1188 | u32 old_phy_ctrl; | |
a972c306 PR |
1189 | u32 advertising; |
1190 | ||
1191 | ethtool_convert_link_mode_to_legacy_u32(&advertising, | |
1192 | cmd->link_modes.advertising); | |
bf345707 | 1193 | |
25db0338 | 1194 | if (!(speed == SPEED_10 || speed == SPEED_100)) |
bf345707 | 1195 | return -EINVAL; |
a972c306 PR |
1196 | if (!(cmd->base.duplex == DUPLEX_HALF || |
1197 | cmd->base.duplex == DUPLEX_FULL)) | |
bf345707 | 1198 | return -EINVAL; |
a972c306 | 1199 | if (!(cmd->base.port == PORT_MII)) |
bf345707 | 1200 | return -EINVAL; |
a972c306 | 1201 | if (!(cmd->base.phy_address == 0x1f)) |
bf345707 | 1202 | return -EINVAL; |
a972c306 PR |
1203 | if (!(cmd->base.autoneg == AUTONEG_DISABLE || |
1204 | cmd->base.autoneg == AUTONEG_ENABLE)) | |
bf345707 CEB |
1205 | return -EINVAL; |
1206 | ||
a972c306 PR |
1207 | if (cmd->base.autoneg == AUTONEG_ENABLE) { |
1208 | if (!(advertising & (ADVERTISED_Autoneg | |
bf345707 CEB |
1209 | | ADVERTISED_100baseT_Full |
1210 | | ADVERTISED_100baseT_Half | |
1211 | | ADVERTISED_10baseT_Full | |
1212 | | ADVERTISED_10baseT_Half))) | |
1213 | return -EINVAL; | |
1214 | ||
1215 | phy_ctrl = PhyCtrlAne; | |
1216 | ||
1217 | // FIXME: I'm not sure what the original code was trying to do | |
a972c306 | 1218 | if (advertising & ADVERTISED_Autoneg) |
bf345707 | 1219 | phy_ctrl |= PhyCtrlDux | PhyCtrlSpd100 | PhyCtrlSpd10; |
a972c306 | 1220 | if (advertising & ADVERTISED_100baseT_Full) |
bf345707 | 1221 | phy_ctrl |= PhyCtrlDux | PhyCtrlSpd100; |
a972c306 | 1222 | if (advertising & ADVERTISED_100baseT_Half) |
bf345707 | 1223 | phy_ctrl |= PhyCtrlSpd100; |
a972c306 | 1224 | if (advertising & ADVERTISED_10baseT_Full) |
bf345707 | 1225 | phy_ctrl |= PhyCtrlSpd10 | PhyCtrlDux; |
a972c306 | 1226 | if (advertising & ADVERTISED_10baseT_Half) |
bf345707 CEB |
1227 | phy_ctrl |= PhyCtrlSpd10; |
1228 | } else { | |
1229 | // FIXME: Whole branch guessed | |
1230 | phy_ctrl = 0; | |
1231 | ||
25db0338 | 1232 | if (speed == SPEED_10) |
bf345707 CEB |
1233 | phy_ctrl |= PhyCtrlSpd10; |
1234 | else /* cmd->speed == SPEED_100 */ | |
1235 | phy_ctrl |= PhyCtrlSpd100; | |
1236 | ||
a972c306 | 1237 | if (cmd->base.duplex == DUPLEX_FULL) |
bf345707 CEB |
1238 | phy_ctrl |= PhyCtrlDux; |
1239 | } | |
1240 | ||
1241 | spin_lock_bh(&priv->lock); | |
1242 | ||
1243 | old_phy_ctrl = ioread32(port_base + PhyCtrl); | |
1244 | phy_ctrl |= old_phy_ctrl & ~(PhyCtrlAne | PhyCtrlDux | |
1245 | | PhyCtrlSpd100 | PhyCtrlSpd10); | |
1246 | if (phy_ctrl != old_phy_ctrl) | |
1247 | iowrite32(phy_ctrl, port_base + PhyCtrl); | |
1248 | ||
1249 | spin_unlock_bh(&priv->lock); | |
1250 | ||
1251 | return 0; | |
1252 | } | |
1253 | ||
bf345707 CEB |
1254 | static void sc92031_ethtool_get_wol(struct net_device *dev, |
1255 | struct ethtool_wolinfo *wolinfo) | |
1256 | { | |
1257 | struct sc92031_priv *priv = netdev_priv(dev); | |
1258 | void __iomem *port_base = priv->port_base; | |
1259 | u32 pm_config; | |
1260 | ||
1261 | spin_lock_bh(&priv->lock); | |
1262 | pm_config = ioread32(port_base + PMConfig); | |
1263 | spin_unlock_bh(&priv->lock); | |
1264 | ||
1265 | // FIXME: Guessed | |
1266 | wolinfo->supported = WAKE_PHY | WAKE_MAGIC | |
1267 | | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST; | |
1268 | wolinfo->wolopts = 0; | |
1269 | ||
1270 | if (pm_config & PM_LinkUp) | |
1271 | wolinfo->wolopts |= WAKE_PHY; | |
1272 | ||
1273 | if (pm_config & PM_Magic) | |
1274 | wolinfo->wolopts |= WAKE_MAGIC; | |
1275 | ||
1276 | if (pm_config & PM_WakeUp) | |
1277 | // FIXME: Guessed | |
1278 | wolinfo->wolopts |= WAKE_UCAST | WAKE_MCAST | WAKE_BCAST; | |
1279 | } | |
1280 | ||
1281 | static int sc92031_ethtool_set_wol(struct net_device *dev, | |
1282 | struct ethtool_wolinfo *wolinfo) | |
1283 | { | |
1284 | struct sc92031_priv *priv = netdev_priv(dev); | |
1285 | void __iomem *port_base = priv->port_base; | |
1286 | u32 pm_config; | |
1287 | ||
1288 | spin_lock_bh(&priv->lock); | |
1289 | ||
1290 | pm_config = ioread32(port_base + PMConfig) | |
1291 | & ~(PM_LinkUp | PM_Magic | PM_WakeUp); | |
1292 | ||
1293 | if (wolinfo->wolopts & WAKE_PHY) | |
1294 | pm_config |= PM_LinkUp; | |
1295 | ||
1296 | if (wolinfo->wolopts & WAKE_MAGIC) | |
1297 | pm_config |= PM_Magic; | |
1298 | ||
1299 | // FIXME: Guessed | |
1300 | if (wolinfo->wolopts & (WAKE_UCAST | WAKE_MCAST | WAKE_BCAST)) | |
1301 | pm_config |= PM_WakeUp; | |
1302 | ||
1303 | priv->pm_config = pm_config; | |
1304 | iowrite32(pm_config, port_base + PMConfig); | |
bf345707 CEB |
1305 | |
1306 | spin_unlock_bh(&priv->lock); | |
1307 | ||
1308 | return 0; | |
1309 | } | |
1310 | ||
1311 | static int sc92031_ethtool_nway_reset(struct net_device *dev) | |
1312 | { | |
1313 | int err = 0; | |
1314 | struct sc92031_priv *priv = netdev_priv(dev); | |
1315 | void __iomem *port_base = priv->port_base; | |
1316 | u16 bmcr; | |
1317 | ||
1318 | spin_lock_bh(&priv->lock); | |
1319 | ||
1320 | bmcr = _sc92031_mii_read(port_base, MII_BMCR); | |
1321 | if (!(bmcr & BMCR_ANENABLE)) { | |
1322 | err = -EINVAL; | |
1323 | goto out; | |
1324 | } | |
1325 | ||
1326 | _sc92031_mii_write(port_base, MII_BMCR, bmcr | BMCR_ANRESTART); | |
1327 | ||
1328 | out: | |
1329 | _sc92031_mii_scan(port_base); | |
bf345707 CEB |
1330 | |
1331 | spin_unlock_bh(&priv->lock); | |
1332 | ||
1333 | return err; | |
1334 | } | |
1335 | ||
1336 | static const char sc92031_ethtool_stats_strings[SILAN_STATS_NUM][ETH_GSTRING_LEN] = { | |
1337 | "tx_timeout", | |
1338 | "rx_loss", | |
1339 | }; | |
1340 | ||
1341 | static void sc92031_ethtool_get_strings(struct net_device *dev, | |
1342 | u32 stringset, u8 *data) | |
1343 | { | |
1344 | if (stringset == ETH_SS_STATS) | |
1345 | memcpy(data, sc92031_ethtool_stats_strings, | |
1346 | SILAN_STATS_NUM * ETH_GSTRING_LEN); | |
1347 | } | |
1348 | ||
b9f2c044 | 1349 | static int sc92031_ethtool_get_sset_count(struct net_device *dev, int sset) |
bf345707 | 1350 | { |
b9f2c044 JG |
1351 | switch (sset) { |
1352 | case ETH_SS_STATS: | |
1353 | return SILAN_STATS_NUM; | |
1354 | default: | |
1355 | return -EOPNOTSUPP; | |
1356 | } | |
bf345707 CEB |
1357 | } |
1358 | ||
1359 | static void sc92031_ethtool_get_ethtool_stats(struct net_device *dev, | |
1360 | struct ethtool_stats *stats, u64 *data) | |
1361 | { | |
1362 | struct sc92031_priv *priv = netdev_priv(dev); | |
1363 | ||
1364 | spin_lock_bh(&priv->lock); | |
1365 | data[0] = priv->tx_timeouts; | |
1366 | data[1] = priv->rx_loss; | |
1367 | spin_unlock_bh(&priv->lock); | |
1368 | } | |
1369 | ||
974acda0 | 1370 | static const struct ethtool_ops sc92031_ethtool_ops = { |
bf345707 CEB |
1371 | .get_wol = sc92031_ethtool_get_wol, |
1372 | .set_wol = sc92031_ethtool_set_wol, | |
1373 | .nway_reset = sc92031_ethtool_nway_reset, | |
1374 | .get_link = ethtool_op_get_link, | |
bf345707 | 1375 | .get_strings = sc92031_ethtool_get_strings, |
b9f2c044 | 1376 | .get_sset_count = sc92031_ethtool_get_sset_count, |
bf345707 | 1377 | .get_ethtool_stats = sc92031_ethtool_get_ethtool_stats, |
a972c306 PR |
1378 | .get_link_ksettings = sc92031_ethtool_get_link_ksettings, |
1379 | .set_link_ksettings = sc92031_ethtool_set_link_ksettings, | |
bf345707 CEB |
1380 | }; |
1381 | ||
974acda0 SH |
1382 | |
1383 | static const struct net_device_ops sc92031_netdev_ops = { | |
1384 | .ndo_get_stats = sc92031_get_stats, | |
1385 | .ndo_start_xmit = sc92031_start_xmit, | |
1386 | .ndo_open = sc92031_open, | |
1387 | .ndo_stop = sc92031_stop, | |
afc4b13d | 1388 | .ndo_set_rx_mode = sc92031_set_multicast_list, |
974acda0 | 1389 | .ndo_validate_addr = eth_validate_addr, |
fe96aaa1 | 1390 | .ndo_set_mac_address = eth_mac_addr, |
974acda0 SH |
1391 | .ndo_tx_timeout = sc92031_tx_timeout, |
1392 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1393 | .ndo_poll_controller = sc92031_poll_controller, | |
1394 | #endif | |
1395 | }; | |
1396 | ||
1dd06ae8 | 1397 | static int sc92031_probe(struct pci_dev *pdev, const struct pci_device_id *id) |
bf345707 CEB |
1398 | { |
1399 | int err; | |
1400 | void __iomem* port_base; | |
1401 | struct net_device *dev; | |
1402 | struct sc92031_priv *priv; | |
1403 | u32 mac0, mac1; | |
1404 | ||
1405 | err = pci_enable_device(pdev); | |
1406 | if (unlikely(err < 0)) | |
1407 | goto out_enable_device; | |
1408 | ||
1409 | pci_set_master(pdev); | |
1410 | ||
3be4e289 | 1411 | err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); |
bf345707 CEB |
1412 | if (unlikely(err < 0)) |
1413 | goto out_set_dma_mask; | |
1414 | ||
3be4e289 | 1415 | err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); |
bf345707 CEB |
1416 | if (unlikely(err < 0)) |
1417 | goto out_set_dma_mask; | |
1418 | ||
1419 | err = pci_request_regions(pdev, SC92031_NAME); | |
1420 | if (unlikely(err < 0)) | |
1421 | goto out_request_regions; | |
1422 | ||
c4a9f085 | 1423 | port_base = pci_iomap(pdev, SC92031_USE_PIO, 0); |
bf345707 CEB |
1424 | if (unlikely(!port_base)) { |
1425 | err = -EIO; | |
1426 | goto out_iomap; | |
1427 | } | |
1428 | ||
1429 | dev = alloc_etherdev(sizeof(struct sc92031_priv)); | |
1430 | if (unlikely(!dev)) { | |
1431 | err = -ENOMEM; | |
1432 | goto out_alloc_etherdev; | |
1433 | } | |
1434 | ||
1435 | pci_set_drvdata(pdev, dev); | |
5a81f143 | 1436 | SET_NETDEV_DEV(dev, &pdev->dev); |
bf345707 | 1437 | |
bf345707 | 1438 | /* faked with skb_copy_and_csum_dev */ |
79032644 MM |
1439 | dev->features = NETIF_F_SG | NETIF_F_HIGHDMA | |
1440 | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; | |
bf345707 | 1441 | |
974acda0 | 1442 | dev->netdev_ops = &sc92031_netdev_ops; |
bf345707 | 1443 | dev->watchdog_timeo = TX_TIMEOUT; |
974acda0 | 1444 | dev->ethtool_ops = &sc92031_ethtool_ops; |
bf345707 CEB |
1445 | |
1446 | priv = netdev_priv(dev); | |
271f278d | 1447 | priv->ndev = dev; |
bf345707 CEB |
1448 | spin_lock_init(&priv->lock); |
1449 | priv->port_base = port_base; | |
1450 | priv->pdev = pdev; | |
271f278d | 1451 | tasklet_setup(&priv->tasklet, sc92031_tasklet); |
bf345707 CEB |
1452 | /* Fudge tasklet count so the call to sc92031_enable_interrupts at |
1453 | * sc92031_open will work correctly */ | |
1454 | tasklet_disable_nosync(&priv->tasklet); | |
1455 | ||
1456 | /* PCI PM Wakeup */ | |
1457 | iowrite32((~PM_LongWF & ~PM_LWPTN) | PM_Enable, port_base + PMConfig); | |
1458 | ||
1459 | mac0 = ioread32(port_base + MAC0); | |
1460 | mac1 = ioread32(port_base + MAC0 + 4); | |
aaeb6cdf JP |
1461 | dev->dev_addr[0] = mac0 >> 24; |
1462 | dev->dev_addr[1] = mac0 >> 16; | |
1463 | dev->dev_addr[2] = mac0 >> 8; | |
1464 | dev->dev_addr[3] = mac0; | |
1465 | dev->dev_addr[4] = mac1 >> 8; | |
1466 | dev->dev_addr[5] = mac1; | |
bf345707 CEB |
1467 | |
1468 | err = register_netdev(dev); | |
1469 | if (err < 0) | |
1470 | goto out_register_netdev; | |
1471 | ||
eb5c8bc1 | 1472 | printk(KERN_INFO "%s: SC92031 at 0x%lx, %pM, IRQ %d\n", dev->name, |
c4a9f085 FR |
1473 | (long)pci_resource_start(pdev, SC92031_USE_PIO), dev->dev_addr, |
1474 | pdev->irq); | |
eb5c8bc1 | 1475 | |
bf345707 CEB |
1476 | return 0; |
1477 | ||
1478 | out_register_netdev: | |
1479 | free_netdev(dev); | |
1480 | out_alloc_etherdev: | |
1481 | pci_iounmap(pdev, port_base); | |
1482 | out_iomap: | |
1483 | pci_release_regions(pdev); | |
1484 | out_request_regions: | |
1485 | out_set_dma_mask: | |
1486 | pci_disable_device(pdev); | |
1487 | out_enable_device: | |
1488 | return err; | |
1489 | } | |
1490 | ||
58af79f0 | 1491 | static void sc92031_remove(struct pci_dev *pdev) |
bf345707 CEB |
1492 | { |
1493 | struct net_device *dev = pci_get_drvdata(pdev); | |
1494 | struct sc92031_priv *priv = netdev_priv(dev); | |
1495 | void __iomem* port_base = priv->port_base; | |
1496 | ||
1497 | unregister_netdev(dev); | |
1498 | free_netdev(dev); | |
1499 | pci_iounmap(pdev, port_base); | |
1500 | pci_release_regions(pdev); | |
1501 | pci_disable_device(pdev); | |
1502 | } | |
1503 | ||
bfc6c183 | 1504 | static int __maybe_unused sc92031_suspend(struct device *dev_d) |
bf345707 | 1505 | { |
bfc6c183 | 1506 | struct net_device *dev = dev_get_drvdata(dev_d); |
bf345707 CEB |
1507 | struct sc92031_priv *priv = netdev_priv(dev); |
1508 | ||
bf345707 | 1509 | if (!netif_running(dev)) |
bfc6c183 | 1510 | return 0; |
bf345707 CEB |
1511 | |
1512 | netif_device_detach(dev); | |
1513 | ||
1514 | /* Disable interrupts, stop Tx and Rx. */ | |
1515 | sc92031_disable_interrupts(dev); | |
1516 | ||
699784b7 | 1517 | spin_lock_bh(&priv->lock); |
bf345707 CEB |
1518 | |
1519 | _sc92031_disable_tx_rx(dev); | |
1520 | _sc92031_tx_clear(dev); | |
bf345707 | 1521 | |
699784b7 | 1522 | spin_unlock_bh(&priv->lock); |
bf345707 | 1523 | |
bf345707 CEB |
1524 | return 0; |
1525 | } | |
1526 | ||
bfc6c183 | 1527 | static int __maybe_unused sc92031_resume(struct device *dev_d) |
bf345707 | 1528 | { |
bfc6c183 | 1529 | struct net_device *dev = dev_get_drvdata(dev_d); |
bf345707 CEB |
1530 | struct sc92031_priv *priv = netdev_priv(dev); |
1531 | ||
bf345707 | 1532 | if (!netif_running(dev)) |
bfc6c183 | 1533 | return 0; |
bf345707 CEB |
1534 | |
1535 | /* Interrupts already disabled by sc92031_suspend */ | |
699784b7 | 1536 | spin_lock_bh(&priv->lock); |
bf345707 CEB |
1537 | |
1538 | _sc92031_reset(dev); | |
bf345707 | 1539 | |
699784b7 | 1540 | spin_unlock_bh(&priv->lock); |
bf345707 CEB |
1541 | sc92031_enable_interrupts(dev); |
1542 | ||
1543 | netif_device_attach(dev); | |
1544 | ||
1545 | if (netif_carrier_ok(dev)) | |
1546 | netif_wake_queue(dev); | |
1547 | else | |
1548 | netif_tx_disable(dev); | |
1549 | ||
bf345707 CEB |
1550 | return 0; |
1551 | } | |
1552 | ||
9baa3c34 | 1553 | static const struct pci_device_id sc92031_pci_device_id_table[] = { |
5ec99fdf CEB |
1554 | { PCI_DEVICE(PCI_VENDOR_ID_SILAN, 0x2031) }, |
1555 | { PCI_DEVICE(PCI_VENDOR_ID_SILAN, 0x8139) }, | |
90cb6659 | 1556 | { PCI_DEVICE(0x1088, 0x2031) }, |
bf345707 CEB |
1557 | { 0, } |
1558 | }; | |
1559 | MODULE_DEVICE_TABLE(pci, sc92031_pci_device_id_table); | |
1560 | ||
bfc6c183 VG |
1561 | static SIMPLE_DEV_PM_OPS(sc92031_pm_ops, sc92031_suspend, sc92031_resume); |
1562 | ||
bf345707 CEB |
1563 | static struct pci_driver sc92031_pci_driver = { |
1564 | .name = SC92031_NAME, | |
1565 | .id_table = sc92031_pci_device_id_table, | |
1566 | .probe = sc92031_probe, | |
58af79f0 | 1567 | .remove = sc92031_remove, |
bfc6c183 | 1568 | .driver.pm = &sc92031_pm_ops, |
bf345707 CEB |
1569 | }; |
1570 | ||
61c95150 | 1571 | module_pci_driver(sc92031_pci_driver); |
bf345707 CEB |
1572 | MODULE_LICENSE("GPL"); |
1573 | MODULE_AUTHOR("Cesar Eduardo Barros <cesarb@cesarb.net>"); | |
f08d7c36 | 1574 | MODULE_DESCRIPTION("Silan SC92031 PCI Fast Ethernet Adapter driver"); |