diff options
-rw-r--r-- | drivers/net/Kconfig | 10 | ||||
-rw-r--r-- | drivers/net/Makefile | 1 | ||||
-rw-r--r-- | drivers/net/sis190.c | 1359 |
3 files changed, 1370 insertions, 0 deletions
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 8a835eb58808..765fbb29d386 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig | |||
@@ -1921,6 +1921,16 @@ config R8169_VLAN | |||
1921 | 1921 | ||
1922 | If in doubt, say Y. | 1922 | If in doubt, say Y. |
1923 | 1923 | ||
1924 | config SIS190 | ||
1925 | tristate "SiS190 gigabit ethernet support" | ||
1926 | depends on PCI | ||
1927 | select CRC32 | ||
1928 | ---help--- | ||
1929 | Say Y here if you have a SiS 190 PCI Gigabit Ethernet adapter. | ||
1930 | |||
1931 | To compile this driver as a module, choose M here: the module | ||
1932 | will be called sis190. This is recommended. | ||
1933 | |||
1924 | config SKGE | 1934 | config SKGE |
1925 | tristate "New SysKonnect GigaEthernet support (EXPERIMENTAL)" | 1935 | tristate "New SysKonnect GigaEthernet support (EXPERIMENTAL)" |
1926 | depends on PCI && EXPERIMENTAL | 1936 | depends on PCI && EXPERIMENTAL |
diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 63c6d1e6d4d9..67b280af425e 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile | |||
@@ -42,6 +42,7 @@ obj-$(CONFIG_EEPRO100) += eepro100.o | |||
42 | obj-$(CONFIG_E100) += e100.o | 42 | obj-$(CONFIG_E100) += e100.o |
43 | obj-$(CONFIG_TLAN) += tlan.o | 43 | obj-$(CONFIG_TLAN) += tlan.o |
44 | obj-$(CONFIG_EPIC100) += epic100.o | 44 | obj-$(CONFIG_EPIC100) += epic100.o |
45 | obj-$(CONFIG_SIS190) += sis190.o | ||
45 | obj-$(CONFIG_SIS900) += sis900.o | 46 | obj-$(CONFIG_SIS900) += sis900.o |
46 | obj-$(CONFIG_YELLOWFIN) += yellowfin.o | 47 | obj-$(CONFIG_YELLOWFIN) += yellowfin.o |
47 | obj-$(CONFIG_ACENIC) += acenic.o | 48 | obj-$(CONFIG_ACENIC) += acenic.o |
diff --git a/drivers/net/sis190.c b/drivers/net/sis190.c new file mode 100644 index 000000000000..fd303e7408ac --- /dev/null +++ b/drivers/net/sis190.c | |||
@@ -0,0 +1,1359 @@ | |||
1 | /* | ||
2 | sis190.c: Silicon Integrated Systems SiS190 ethernet driver | ||
3 | |||
4 | Copyright (c) 2003 K.M. Liu <kmliu@sis.com> | ||
5 | Copyright (c) 2003, 2004 Jeff Garzik <jgarzik@pobox.com> | ||
6 | Copyright (c) 2003, 2004, 2005 Francois Romieu <romieu@fr.zoreil.com> | ||
7 | |||
8 | Based on r8169.c, tg3.c, 8139cp.c, skge.c and probably even epic100.c. | ||
9 | |||
10 | This software may be used and distributed according to the terms of | ||
11 | the GNU General Public License (GPL), incorporated herein by reference. | ||
12 | Drivers based on or derived from this code fall under the GPL and must | ||
13 | retain the authorship, copyright and license notice. This file is not | ||
14 | a complete program and may only be used when the entire operating | ||
15 | system is licensed under the GPL. | ||
16 | |||
17 | See the file COPYING in this distribution for more information. | ||
18 | |||
19 | */ | ||
20 | |||
21 | #include <linux/module.h> | ||
22 | #include <linux/moduleparam.h> | ||
23 | #include <linux/netdevice.h> | ||
24 | #include <linux/etherdevice.h> | ||
25 | #include <linux/ethtool.h> | ||
26 | #include <linux/pci.h> | ||
27 | #include <linux/mii.h> | ||
28 | #include <linux/delay.h> | ||
29 | #include <linux/crc32.h> | ||
30 | #include <linux/dma-mapping.h> | ||
31 | #include <asm/irq.h> | ||
32 | |||
33 | #define net_drv(p, arg...) if (netif_msg_drv(p)) \ | ||
34 | printk(arg) | ||
35 | #define net_probe(p, arg...) if (netif_msg_probe(p)) \ | ||
36 | printk(arg) | ||
37 | #define net_link(p, arg...) if (netif_msg_link(p)) \ | ||
38 | printk(arg) | ||
39 | #define net_intr(p, arg...) if (netif_msg_intr(p)) \ | ||
40 | printk(arg) | ||
41 | #define net_tx_err(p, arg...) if (netif_msg_tx_err(p)) \ | ||
42 | printk(arg) | ||
43 | |||
44 | #ifdef CONFIG_SIS190_NAPI | ||
45 | #define NAPI_SUFFIX "-NAPI" | ||
46 | #else | ||
47 | #define NAPI_SUFFIX "" | ||
48 | #endif | ||
49 | |||
50 | #define DRV_VERSION "1.2" NAPI_SUFFIX | ||
51 | #define DRV_NAME "sis190" | ||
52 | #define SIS190_DRIVER_NAME DRV_NAME " Gigabit Ethernet driver " DRV_VERSION | ||
53 | #define PFX DRV_NAME ": " | ||
54 | |||
55 | #ifdef CONFIG_SIS190_NAPI | ||
56 | #define sis190_rx_skb netif_receive_skb | ||
57 | #define sis190_rx_quota(count, quota) min(count, quota) | ||
58 | #else | ||
59 | #define sis190_rx_skb netif_rx | ||
60 | #define sis190_rx_quota(count, quota) count | ||
61 | #endif | ||
62 | |||
63 | #define MAC_ADDR_LEN 6 | ||
64 | |||
65 | #define NUM_TX_DESC 64 | ||
66 | #define NUM_RX_DESC 64 | ||
67 | #define TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc)) | ||
68 | #define RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc)) | ||
69 | #define RX_BUF_SIZE 1536 | ||
70 | |||
71 | #define SIS190_REGS_SIZE 0x80 | ||
72 | #define SIS190_TX_TIMEOUT (6*HZ) | ||
73 | #define SIS190_PHY_TIMEOUT (10*HZ) | ||
74 | #define SIS190_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | \ | ||
75 | NETIF_MSG_LINK | NETIF_MSG_IFUP | \ | ||
76 | NETIF_MSG_IFDOWN) | ||
77 | |||
78 | /* Enhanced PHY access register bit definitions */ | ||
79 | #define EhnMIIread 0x0000 | ||
80 | #define EhnMIIwrite 0x0020 | ||
81 | #define EhnMIIdataShift 16 | ||
82 | #define EhnMIIpmdShift 6 /* 7016 only */ | ||
83 | #define EhnMIIregShift 11 | ||
84 | #define EhnMIIreq 0x0010 | ||
85 | #define EhnMIInotDone 0x0010 | ||
86 | |||
87 | /* Write/read MMIO register */ | ||
88 | #define SIS_W8(reg, val) writeb ((val), ioaddr + (reg)) | ||
89 | #define SIS_W16(reg, val) writew ((val), ioaddr + (reg)) | ||
90 | #define SIS_W32(reg, val) writel ((val), ioaddr + (reg)) | ||
91 | #define SIS_R8(reg) readb (ioaddr + (reg)) | ||
92 | #define SIS_R16(reg) readw (ioaddr + (reg)) | ||
93 | #define SIS_R32(reg) readl (ioaddr + (reg)) | ||
94 | |||
95 | #define SIS_PCI_COMMIT() SIS_R32(IntrControl) | ||
96 | |||
97 | enum sis190_registers { | ||
98 | TxControl = 0x00, | ||
99 | TxDescStartAddr = 0x04, | ||
100 | TxNextDescAddr = 0x0c, // unused | ||
101 | RxControl = 0x10, | ||
102 | RxDescStartAddr = 0x14, | ||
103 | RxNextDescAddr = 0x1c, // unused | ||
104 | IntrStatus = 0x20, | ||
105 | IntrMask = 0x24, | ||
106 | IntrControl = 0x28, | ||
107 | IntrTimer = 0x2c, // unused | ||
108 | PMControl = 0x30, // unused | ||
109 | ROMControl = 0x38, | ||
110 | ROMInterface = 0x3c, | ||
111 | StationControl = 0x40, | ||
112 | GMIIControl = 0x44, | ||
113 | TxMacControl = 0x50, | ||
114 | RxMacControl = 0x60, | ||
115 | RxMacAddr = 0x62, | ||
116 | RxHashTable = 0x68, | ||
117 | // Undocumented = 0x6c, | ||
118 | RxWakeOnLan = 0x70, | ||
119 | // Undocumented = 0x74, | ||
120 | RxMPSControl = 0x78, // unused | ||
121 | }; | ||
122 | |||
123 | enum sis190_register_content { | ||
124 | /* IntrStatus */ | ||
125 | SoftInt = 0x40000000, // unused | ||
126 | Timeup = 0x20000000, // unused | ||
127 | PauseFrame = 0x00080000, // unused | ||
128 | MagicPacket = 0x00040000, // unused | ||
129 | WakeupFrame = 0x00020000, // unused | ||
130 | LinkChange = 0x00010000, | ||
131 | RxQEmpty = 0x00000080, | ||
132 | RxQInt = 0x00000040, | ||
133 | TxQ1Empty = 0x00000020, // unused | ||
134 | TxQ1Int = 0x00000010, | ||
135 | TxQ0Empty = 0x00000008, // unused | ||
136 | TxQ0Int = 0x00000004, | ||
137 | RxHalt = 0x00000002, | ||
138 | TxHalt = 0x00000001, | ||
139 | |||
140 | /* RxStatusDesc */ | ||
141 | RxRES = 0x00200000, // unused | ||
142 | RxCRC = 0x00080000, | ||
143 | RxRUNT = 0x00100000, // unused | ||
144 | RxRWT = 0x00400000, // unused | ||
145 | |||
146 | /* {Rx/Tx}CmdBits */ | ||
147 | CmdReset = 0x10, | ||
148 | CmdRxEnb = 0x08, // unused | ||
149 | CmdTxEnb = 0x01, | ||
150 | RxBufEmpty = 0x01, // unused | ||
151 | |||
152 | /* Cfg9346Bits */ | ||
153 | Cfg9346_Lock = 0x00, // unused | ||
154 | Cfg9346_Unlock = 0xc0, // unused | ||
155 | |||
156 | /* RxMacControl */ | ||
157 | AcceptErr = 0x20, // unused | ||
158 | AcceptRunt = 0x10, // unused | ||
159 | AcceptBroadcast = 0x0800, | ||
160 | AcceptMulticast = 0x0400, | ||
161 | AcceptMyPhys = 0x0200, | ||
162 | AcceptAllPhys = 0x0100, | ||
163 | |||
164 | /* RxConfigBits */ | ||
165 | RxCfgFIFOShift = 13, | ||
166 | RxCfgDMAShift = 8, // 0x1a in RxControl ? | ||
167 | |||
168 | /* TxConfigBits */ | ||
169 | TxInterFrameGapShift = 24, | ||
170 | TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */ | ||
171 | |||
172 | /* StationControl */ | ||
173 | _1000bpsF = 0x1c00, | ||
174 | _1000bpsH = 0x0c00, | ||
175 | _100bpsF = 0x1800, | ||
176 | _100bpsH = 0x0800, | ||
177 | _10bpsF = 0x1400, | ||
178 | _10bpsH = 0x0400, | ||
179 | |||
180 | LinkStatus = 0x02, // unused | ||
181 | FullDup = 0x01, // unused | ||
182 | |||
183 | /* TBICSRBit */ | ||
184 | TBILinkOK = 0x02000000, // unused | ||
185 | }; | ||
186 | |||
187 | struct TxDesc { | ||
188 | u32 PSize; | ||
189 | u32 status; | ||
190 | u32 addr; | ||
191 | u32 size; | ||
192 | }; | ||
193 | |||
194 | struct RxDesc { | ||
195 | u32 PSize; | ||
196 | u32 status; | ||
197 | u32 addr; | ||
198 | u32 size; | ||
199 | }; | ||
200 | |||
201 | enum _DescStatusBit { | ||
202 | /* _Desc.status */ | ||
203 | OWNbit = 0x80000000, | ||
204 | INTbit = 0x40000000, | ||
205 | DEFbit = 0x00200000, | ||
206 | CRCbit = 0x00020000, | ||
207 | PADbit = 0x00010000, | ||
208 | /* _Desc.size */ | ||
209 | RingEnd = (1 << 31), | ||
210 | /* _Desc.PSize */ | ||
211 | RxSizeMask = 0x0000ffff | ||
212 | }; | ||
213 | |||
214 | struct sis190_private { | ||
215 | void __iomem *mmio_addr; | ||
216 | struct pci_dev *pci_dev; | ||
217 | struct net_device_stats stats; | ||
218 | spinlock_t lock; | ||
219 | u32 rx_buf_sz; | ||
220 | u32 cur_rx; | ||
221 | u32 cur_tx; | ||
222 | u32 dirty_rx; | ||
223 | u32 dirty_tx; | ||
224 | dma_addr_t rx_dma; | ||
225 | dma_addr_t tx_dma; | ||
226 | struct RxDesc *RxDescRing; | ||
227 | struct TxDesc *TxDescRing; | ||
228 | struct sk_buff *Rx_skbuff[NUM_RX_DESC]; | ||
229 | struct sk_buff *Tx_skbuff[NUM_TX_DESC]; | ||
230 | struct work_struct phy_task; | ||
231 | struct timer_list timer; | ||
232 | u32 msg_enable; | ||
233 | }; | ||
234 | |||
235 | const static struct { | ||
236 | const char *name; | ||
237 | u8 version; /* depend on docs */ | ||
238 | u32 RxConfigMask; /* clear the bits supported by this chip */ | ||
239 | } sis_chip_info[] = { | ||
240 | { DRV_NAME, 0x00, 0xff7e1880, }, | ||
241 | }; | ||
242 | |||
243 | static struct pci_device_id sis190_pci_tbl[] __devinitdata = { | ||
244 | { PCI_DEVICE(PCI_VENDOR_ID_SI, 0x0190), 0, 0, 0 }, | ||
245 | { 0, }, | ||
246 | }; | ||
247 | |||
248 | MODULE_DEVICE_TABLE(pci, sis190_pci_tbl); | ||
249 | |||
250 | static int rx_copybreak = 200; | ||
251 | |||
252 | static struct { | ||
253 | u32 msg_enable; | ||
254 | } debug = { -1 }; | ||
255 | |||
256 | MODULE_DESCRIPTION("SiS sis190 Gigabit Ethernet driver"); | ||
257 | module_param(rx_copybreak, int, 0); | ||
258 | MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames"); | ||
259 | module_param_named(debug, debug.msg_enable, int, 0); | ||
260 | MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)"); | ||
261 | MODULE_AUTHOR("K.M. Liu <kmliu@sis.com>, Ueimor <romieu@fr.zoreil.com>"); | ||
262 | MODULE_VERSION(DRV_VERSION); | ||
263 | MODULE_LICENSE("GPL"); | ||
264 | |||
265 | static const u32 sis190_intr_mask = | ||
266 | RxQEmpty | RxQInt | TxQ1Int | TxQ0Int | RxHalt | TxHalt; | ||
267 | |||
268 | /* | ||
269 | * Maximum number of multicast addresses to filter (vs. Rx-all-multicast). | ||
270 | * The chips use a 64 element hash table based on the Ethernet CRC. | ||
271 | */ | ||
272 | static int multicast_filter_limit = 32; | ||
273 | |||
274 | static void __mdio_cmd(void __iomem *ioaddr, u32 ctl) | ||
275 | { | ||
276 | unsigned int i; | ||
277 | |||
278 | SIS_W32(GMIIControl, ctl); | ||
279 | |||
280 | msleep(1); | ||
281 | |||
282 | for (i = 0; i < 100; i++) { | ||
283 | if (!(SIS_R32(GMIIControl) & EhnMIInotDone)) | ||
284 | break; | ||
285 | msleep(1); | ||
286 | } | ||
287 | |||
288 | if (i > 999) | ||
289 | printk(KERN_ERR PFX "PHY command failed !\n"); | ||
290 | } | ||
291 | |||
292 | static void mdio_write(void __iomem *ioaddr, int reg, int val) | ||
293 | { | ||
294 | u32 pmd = 1; | ||
295 | |||
296 | __mdio_cmd(ioaddr, EhnMIIreq | EhnMIIwrite | | ||
297 | (((u32) reg) << EhnMIIregShift) | (pmd << EhnMIIpmdShift) | | ||
298 | (((u32) val) << EhnMIIdataShift)); | ||
299 | } | ||
300 | |||
301 | static int mdio_read(void __iomem *ioaddr, int reg) | ||
302 | { | ||
303 | u32 pmd = 1; | ||
304 | |||
305 | __mdio_cmd(ioaddr, EhnMIIreq | EhnMIIread | | ||
306 | (((u32) reg) << EhnMIIregShift) | (pmd << EhnMIIpmdShift)); | ||
307 | |||
308 | return (u16) (SIS_R32(GMIIControl) >> EhnMIIdataShift); | ||
309 | } | ||
310 | |||
311 | static int sis190_read_eeprom(void __iomem *ioaddr, u32 reg) | ||
312 | { | ||
313 | unsigned int i; | ||
314 | u16 data; | ||
315 | u32 val; | ||
316 | |||
317 | if (!(SIS_R32(ROMControl) & 0x0002)) | ||
318 | return 0; | ||
319 | |||
320 | val = (0x0080 | (0x2 << 8) | (reg << 10)); | ||
321 | |||
322 | SIS_W32(ROMInterface, val); | ||
323 | |||
324 | for (i = 0; i < 200; i++) { | ||
325 | if (!(SIS_R32(ROMInterface) & 0x0080)) | ||
326 | break; | ||
327 | msleep(1); | ||
328 | } | ||
329 | |||
330 | data = (u16) ((SIS_R32(ROMInterface) & 0xffff0000) >> 16); | ||
331 | |||
332 | return data; | ||
333 | } | ||
334 | |||
335 | static void sis190_irq_mask_and_ack(void __iomem *ioaddr) | ||
336 | { | ||
337 | SIS_W32(IntrMask, 0x00); | ||
338 | SIS_W32(IntrStatus, 0xffffffff); | ||
339 | SIS_PCI_COMMIT(); | ||
340 | } | ||
341 | |||
342 | static void sis190_asic_down(void __iomem *ioaddr) | ||
343 | { | ||
344 | /* Stop the chip's Tx and Rx DMA processes. */ | ||
345 | |||
346 | SIS_W32(TxControl, 0x1a00); | ||
347 | SIS_W32(RxControl, 0x1a00); | ||
348 | |||
349 | sis190_irq_mask_and_ack(ioaddr); | ||
350 | } | ||
351 | |||
352 | static void sis190_mark_as_last_descriptor(struct RxDesc *desc) | ||
353 | { | ||
354 | desc->size |= cpu_to_le32(RingEnd); | ||
355 | } | ||
356 | |||
357 | static inline void sis190_give_to_asic(struct RxDesc *desc, u32 rx_buf_sz) | ||
358 | { | ||
359 | u32 eor = le32_to_cpu(desc->size) & RingEnd; | ||
360 | |||
361 | desc->PSize = 0x0; | ||
362 | desc->size = cpu_to_le32(rx_buf_sz | eor); | ||
363 | wmb(); | ||
364 | desc->status = cpu_to_le32(OWNbit | INTbit); | ||
365 | } | ||
366 | |||
367 | static inline void sis190_map_to_asic(struct RxDesc *desc, dma_addr_t mapping, | ||
368 | u32 rx_buf_sz) | ||
369 | { | ||
370 | desc->addr = cpu_to_le32(mapping); | ||
371 | sis190_give_to_asic(desc, rx_buf_sz); | ||
372 | } | ||
373 | |||
374 | static inline void sis190_make_unusable_by_asic(struct RxDesc *desc) | ||
375 | { | ||
376 | desc->PSize = 0x0; | ||
377 | desc->addr = 0xdeadbeef; | ||
378 | desc->size &= cpu_to_le32(RingEnd); | ||
379 | wmb(); | ||
380 | desc->status = 0x0; | ||
381 | } | ||
382 | |||
383 | static int sis190_alloc_rx_skb(struct pci_dev *pdev, struct sk_buff **sk_buff, | ||
384 | struct RxDesc *desc, u32 rx_buf_sz) | ||
385 | { | ||
386 | struct sk_buff *skb; | ||
387 | dma_addr_t mapping; | ||
388 | int ret = 0; | ||
389 | |||
390 | skb = dev_alloc_skb(rx_buf_sz); | ||
391 | if (!skb) | ||
392 | goto err_out; | ||
393 | |||
394 | *sk_buff = skb; | ||
395 | |||
396 | mapping = pci_map_single(pdev, skb->data, rx_buf_sz, | ||
397 | PCI_DMA_FROMDEVICE); | ||
398 | |||
399 | sis190_map_to_asic(desc, mapping, rx_buf_sz); | ||
400 | out: | ||
401 | return ret; | ||
402 | |||
403 | err_out: | ||
404 | ret = -ENOMEM; | ||
405 | sis190_make_unusable_by_asic(desc); | ||
406 | goto out; | ||
407 | } | ||
408 | |||
409 | static u32 sis190_rx_fill(struct sis190_private *tp, struct net_device *dev, | ||
410 | u32 start, u32 end) | ||
411 | { | ||
412 | u32 cur; | ||
413 | |||
414 | for (cur = start; cur < end; cur++) { | ||
415 | int ret, i = cur % NUM_RX_DESC; | ||
416 | |||
417 | if (tp->Rx_skbuff[i]) | ||
418 | continue; | ||
419 | |||
420 | ret = sis190_alloc_rx_skb(tp->pci_dev, tp->Rx_skbuff + i, | ||
421 | tp->RxDescRing + i, tp->rx_buf_sz); | ||
422 | if (ret < 0) | ||
423 | break; | ||
424 | } | ||
425 | return cur - start; | ||
426 | } | ||
427 | |||
428 | static inline int sis190_try_rx_copy(struct sk_buff **sk_buff, int pkt_size, | ||
429 | struct RxDesc *desc, int rx_buf_sz) | ||
430 | { | ||
431 | int ret = -1; | ||
432 | |||
433 | if (pkt_size < rx_copybreak) { | ||
434 | struct sk_buff *skb; | ||
435 | |||
436 | skb = dev_alloc_skb(pkt_size + NET_IP_ALIGN); | ||
437 | if (skb) { | ||
438 | skb_reserve(skb, NET_IP_ALIGN); | ||
439 | eth_copy_and_sum(skb, sk_buff[0]->data, pkt_size, 0); | ||
440 | *sk_buff = skb; | ||
441 | sis190_give_to_asic(desc, rx_buf_sz); | ||
442 | ret = 0; | ||
443 | } | ||
444 | } | ||
445 | return ret; | ||
446 | } | ||
447 | |||
448 | static int sis190_rx_interrupt(struct net_device *dev, | ||
449 | struct sis190_private *tp, void __iomem *ioaddr) | ||
450 | { | ||
451 | struct net_device_stats *stats = &tp->stats; | ||
452 | u32 rx_left, cur_rx = tp->cur_rx; | ||
453 | u32 delta, count; | ||
454 | |||
455 | rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx; | ||
456 | rx_left = sis190_rx_quota(rx_left, (u32) dev->quota); | ||
457 | |||
458 | for (; rx_left > 0; rx_left--, cur_rx++) { | ||
459 | unsigned int entry = cur_rx % NUM_RX_DESC; | ||
460 | struct RxDesc *desc = tp->RxDescRing + entry; | ||
461 | u32 status; | ||
462 | |||
463 | if (desc->status & OWNbit) | ||
464 | break; | ||
465 | |||
466 | status = le32_to_cpu(desc->PSize); | ||
467 | |||
468 | // net_intr(tp, KERN_INFO "%s: Rx PSize = %08x.\n", dev->name, | ||
469 | // status); | ||
470 | |||
471 | if (status & RxCRC) { | ||
472 | net_intr(tp, KERN_INFO "%s: bad crc. status = %08x.\n", | ||
473 | dev->name, status); | ||
474 | stats->rx_errors++; | ||
475 | stats->rx_crc_errors++; | ||
476 | sis190_give_to_asic(desc, tp->rx_buf_sz); | ||
477 | } else if (!(status & PADbit)) { | ||
478 | net_intr(tp, KERN_INFO "%s: bad pad. status = %08x.\n", | ||
479 | dev->name, status); | ||
480 | stats->rx_errors++; | ||
481 | stats->rx_length_errors++; | ||
482 | sis190_give_to_asic(desc, tp->rx_buf_sz); | ||
483 | } else { | ||
484 | struct sk_buff *skb = tp->Rx_skbuff[entry]; | ||
485 | int pkt_size = (status & RxSizeMask) - 4; | ||
486 | void (*pci_action)(struct pci_dev *, dma_addr_t, | ||
487 | size_t, int) = pci_dma_sync_single_for_device; | ||
488 | |||
489 | if (unlikely(pkt_size > tp->rx_buf_sz)) { | ||
490 | net_intr(tp, KERN_INFO | ||
491 | "%s: (frag) status = %08x.\n", | ||
492 | dev->name, status); | ||
493 | stats->rx_dropped++; | ||
494 | stats->rx_length_errors++; | ||
495 | sis190_give_to_asic(desc, tp->rx_buf_sz); | ||
496 | continue; | ||
497 | } | ||
498 | |||
499 | pci_dma_sync_single_for_cpu(tp->pci_dev, | ||
500 | le32_to_cpu(desc->addr), tp->rx_buf_sz, | ||
501 | PCI_DMA_FROMDEVICE); | ||
502 | |||
503 | if (sis190_try_rx_copy(&skb, pkt_size, desc, | ||
504 | tp->rx_buf_sz)) { | ||
505 | pci_action = pci_unmap_single; | ||
506 | tp->Rx_skbuff[entry] = NULL; | ||
507 | sis190_make_unusable_by_asic(desc); | ||
508 | } | ||
509 | |||
510 | pci_action(tp->pci_dev, le32_to_cpu(desc->addr), | ||
511 | tp->rx_buf_sz, PCI_DMA_FROMDEVICE); | ||
512 | |||
513 | skb->dev = dev; | ||
514 | skb_put(skb, pkt_size); | ||
515 | skb->protocol = eth_type_trans(skb, dev); | ||
516 | |||
517 | sis190_rx_skb(skb); | ||
518 | |||
519 | dev->last_rx = jiffies; | ||
520 | stats->rx_bytes += pkt_size; | ||
521 | stats->rx_packets++; | ||
522 | } | ||
523 | } | ||
524 | count = cur_rx - tp->cur_rx; | ||
525 | tp->cur_rx = cur_rx; | ||
526 | |||
527 | delta = sis190_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx); | ||
528 | if (!delta && count && netif_msg_intr(tp)) | ||
529 | printk(KERN_INFO "%s: no Rx buffer allocated.\n", dev->name); | ||
530 | tp->dirty_rx += delta; | ||
531 | |||
532 | if (((tp->dirty_rx + NUM_RX_DESC) == tp->cur_rx) && netif_msg_intr(tp)) | ||
533 | printk(KERN_EMERG "%s: Rx buffers exhausted.\n", dev->name); | ||
534 | |||
535 | return count; | ||
536 | } | ||
537 | |||
538 | static void sis190_unmap_tx_skb(struct pci_dev *pdev, struct sk_buff *skb, | ||
539 | struct TxDesc *desc) | ||
540 | { | ||
541 | unsigned int len; | ||
542 | |||
543 | len = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len; | ||
544 | |||
545 | pci_unmap_single(pdev, le32_to_cpu(desc->addr), len, PCI_DMA_TODEVICE); | ||
546 | |||
547 | memset(desc, 0x00, sizeof(*desc)); | ||
548 | } | ||
549 | |||
550 | static void sis190_tx_interrupt(struct net_device *dev, | ||
551 | struct sis190_private *tp, void __iomem *ioaddr) | ||
552 | { | ||
553 | u32 pending, dirty_tx = tp->dirty_tx; | ||
554 | /* | ||
555 | * It would not be needed if queueing was allowed to be enabled | ||
556 | * again too early (hint: think preempt and unclocked smp systems). | ||
557 | */ | ||
558 | unsigned int queue_stopped; | ||
559 | |||
560 | smp_rmb(); | ||
561 | pending = tp->cur_tx - dirty_tx; | ||
562 | queue_stopped = (pending == NUM_TX_DESC); | ||
563 | |||
564 | for (; pending; pending--, dirty_tx++) { | ||
565 | unsigned int entry = dirty_tx % NUM_TX_DESC; | ||
566 | struct TxDesc *txd = tp->TxDescRing + entry; | ||
567 | struct sk_buff *skb; | ||
568 | |||
569 | if (le32_to_cpu(txd->status) & OWNbit) | ||
570 | break; | ||
571 | |||
572 | skb = tp->Tx_skbuff[entry]; | ||
573 | |||
574 | tp->stats.tx_packets++; | ||
575 | tp->stats.tx_bytes += skb->len; | ||
576 | |||
577 | sis190_unmap_tx_skb(tp->pci_dev, skb, txd); | ||
578 | tp->Tx_skbuff[entry] = NULL; | ||
579 | dev_kfree_skb_irq(skb); | ||
580 | } | ||
581 | |||
582 | if (tp->dirty_tx != dirty_tx) { | ||
583 | tp->dirty_tx = dirty_tx; | ||
584 | smp_wmb(); | ||
585 | if (queue_stopped) | ||
586 | netif_wake_queue(dev); | ||
587 | } | ||
588 | } | ||
589 | |||
590 | /* | ||
591 | * The interrupt handler does all of the Rx thread work and cleans up after | ||
592 | * the Tx thread. | ||
593 | */ | ||
594 | static irqreturn_t sis190_interrupt(int irq, void *__dev, struct pt_regs *regs) | ||
595 | { | ||
596 | struct net_device *dev = __dev; | ||
597 | struct sis190_private *tp = netdev_priv(dev); | ||
598 | void __iomem *ioaddr = tp->mmio_addr; | ||
599 | unsigned int handled = 0; | ||
600 | u32 status; | ||
601 | |||
602 | status = SIS_R32(IntrStatus); | ||
603 | |||
604 | if ((status == 0xffffffff) || !status) | ||
605 | goto out; | ||
606 | |||
607 | handled = 1; | ||
608 | |||
609 | if (unlikely(!netif_running(dev))) { | ||
610 | sis190_asic_down(ioaddr); | ||
611 | goto out; | ||
612 | } | ||
613 | |||
614 | SIS_W32(IntrStatus, status); | ||
615 | |||
616 | // net_intr(tp, KERN_INFO "%s: status = %08x.\n", dev->name, status); | ||
617 | |||
618 | if (status & LinkChange) { | ||
619 | net_intr(tp, KERN_INFO "%s: link change.\n", dev->name); | ||
620 | schedule_work(&tp->phy_task); | ||
621 | } | ||
622 | |||
623 | if (status & RxQInt) | ||
624 | sis190_rx_interrupt(dev, tp, ioaddr); | ||
625 | |||
626 | if (status & TxQ0Int) | ||
627 | sis190_tx_interrupt(dev, tp, ioaddr); | ||
628 | out: | ||
629 | return IRQ_RETVAL(handled); | ||
630 | } | ||
631 | |||
632 | static void sis190_free_rx_skb(struct sis190_private *tp, | ||
633 | struct sk_buff **sk_buff, struct RxDesc *desc) | ||
634 | { | ||
635 | struct pci_dev *pdev = tp->pci_dev; | ||
636 | |||
637 | pci_unmap_single(pdev, le32_to_cpu(desc->addr), tp->rx_buf_sz, | ||
638 | PCI_DMA_FROMDEVICE); | ||
639 | dev_kfree_skb(*sk_buff); | ||
640 | *sk_buff = NULL; | ||
641 | sis190_make_unusable_by_asic(desc); | ||
642 | } | ||
643 | |||
644 | static void sis190_rx_clear(struct sis190_private *tp) | ||
645 | { | ||
646 | unsigned int i; | ||
647 | |||
648 | for (i = 0; i < NUM_RX_DESC; i++) { | ||
649 | if (!tp->Rx_skbuff[i]) | ||
650 | continue; | ||
651 | sis190_free_rx_skb(tp, tp->Rx_skbuff + i, tp->RxDescRing + i); | ||
652 | } | ||
653 | } | ||
654 | |||
655 | static void sis190_init_ring_indexes(struct sis190_private *tp) | ||
656 | { | ||
657 | tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0; | ||
658 | } | ||
659 | |||
660 | static int sis190_init_ring(struct net_device *dev) | ||
661 | { | ||
662 | struct sis190_private *tp = netdev_priv(dev); | ||
663 | |||
664 | sis190_init_ring_indexes(tp); | ||
665 | |||
666 | memset(tp->Tx_skbuff, 0x0, NUM_TX_DESC * sizeof(struct sk_buff *)); | ||
667 | memset(tp->Rx_skbuff, 0x0, NUM_RX_DESC * sizeof(struct sk_buff *)); | ||
668 | |||
669 | if (sis190_rx_fill(tp, dev, 0, NUM_RX_DESC) != NUM_RX_DESC) | ||
670 | goto err_rx_clear; | ||
671 | |||
672 | sis190_mark_as_last_descriptor(tp->RxDescRing + NUM_RX_DESC - 1); | ||
673 | |||
674 | return 0; | ||
675 | |||
676 | err_rx_clear: | ||
677 | sis190_rx_clear(tp); | ||
678 | return -ENOMEM; | ||
679 | } | ||
680 | |||
681 | static void sis190_set_rx_mode(struct net_device *dev) | ||
682 | { | ||
683 | struct sis190_private *tp = netdev_priv(dev); | ||
684 | void __iomem *ioaddr = tp->mmio_addr; | ||
685 | unsigned long flags; | ||
686 | u32 mc_filter[2]; /* Multicast hash filter */ | ||
687 | u16 rx_mode; | ||
688 | |||
689 | if (dev->flags & IFF_PROMISC) { | ||
690 | /* Unconditionally log net taps. */ | ||
691 | net_drv(tp, KERN_NOTICE "%s: Promiscuous mode enabled.\n", | ||
692 | dev->name); | ||
693 | rx_mode = | ||
694 | AcceptBroadcast | AcceptMulticast | AcceptMyPhys | | ||
695 | AcceptAllPhys; | ||
696 | mc_filter[1] = mc_filter[0] = 0xffffffff; | ||
697 | } else if ((dev->mc_count > multicast_filter_limit) || | ||
698 | (dev->flags & IFF_ALLMULTI)) { | ||
699 | /* Too many to filter perfectly -- accept all multicasts. */ | ||
700 | rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; | ||
701 | mc_filter[1] = mc_filter[0] = 0xffffffff; | ||
702 | } else { | ||
703 | struct dev_mc_list *mclist; | ||
704 | unsigned int i; | ||
705 | |||
706 | rx_mode = AcceptBroadcast | AcceptMyPhys; | ||
707 | mc_filter[1] = mc_filter[0] = 0; | ||
708 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; | ||
709 | i++, mclist = mclist->next) { | ||
710 | int bit_nr = | ||
711 | ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26; | ||
712 | mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); | ||
713 | rx_mode |= AcceptMulticast; | ||
714 | } | ||
715 | } | ||
716 | |||
717 | spin_lock_irqsave(&tp->lock, flags); | ||
718 | |||
719 | SIS_W16(RxMacControl, rx_mode | 0x2); | ||
720 | SIS_W32(RxHashTable, mc_filter[0]); | ||
721 | SIS_W32(RxHashTable + 4, mc_filter[1]); | ||
722 | |||
723 | spin_unlock_irqrestore(&tp->lock, flags); | ||
724 | } | ||
725 | |||
726 | static void sis190_soft_reset(void __iomem *ioaddr) | ||
727 | { | ||
728 | SIS_W32(IntrControl, 0x8000); | ||
729 | SIS_PCI_COMMIT(); | ||
730 | msleep(1); | ||
731 | SIS_W32(IntrControl, 0x0); | ||
732 | sis190_asic_down(ioaddr); | ||
733 | msleep(1); | ||
734 | } | ||
735 | |||
736 | static void sis190_hw_start(struct net_device *dev) | ||
737 | { | ||
738 | struct sis190_private *tp = netdev_priv(dev); | ||
739 | void __iomem *ioaddr = tp->mmio_addr; | ||
740 | |||
741 | sis190_soft_reset(ioaddr); | ||
742 | |||
743 | SIS_W32(TxDescStartAddr, tp->tx_dma); | ||
744 | SIS_W32(RxDescStartAddr, tp->rx_dma); | ||
745 | |||
746 | SIS_W32(IntrStatus, 0xffffffff); | ||
747 | SIS_W32(IntrMask, 0x0); | ||
748 | /* | ||
749 | * Default is 100Mbps. | ||
750 | * A bit strange: 100Mbps is 0x1801 elsewhere -- FR 2005/06/09 | ||
751 | */ | ||
752 | SIS_W16(StationControl, 0x1901); | ||
753 | SIS_W32(GMIIControl, 0x0); | ||
754 | SIS_W32(TxMacControl, 0x60); | ||
755 | SIS_W16(RxMacControl, 0x02); | ||
756 | SIS_W32(RxHashTable, 0x0); | ||
757 | SIS_W32(0x6c, 0x0); | ||
758 | SIS_W32(RxWakeOnLan, 0x0); | ||
759 | SIS_W32(0x74, 0x0); | ||
760 | |||
761 | SIS_PCI_COMMIT(); | ||
762 | |||
763 | sis190_set_rx_mode(dev); | ||
764 | |||
765 | /* Enable all known interrupts by setting the interrupt mask. */ | ||
766 | SIS_W32(IntrMask, sis190_intr_mask); | ||
767 | |||
768 | SIS_W32(TxControl, 0x1a00 | CmdTxEnb); | ||
769 | SIS_W32(RxControl, 0x1a1d); | ||
770 | |||
771 | netif_start_queue(dev); | ||
772 | } | ||
773 | |||
774 | static void sis190_phy_task(void * data) | ||
775 | { | ||
776 | struct net_device *dev = data; | ||
777 | struct sis190_private *tp = netdev_priv(dev); | ||
778 | void __iomem *ioaddr = tp->mmio_addr; | ||
779 | u16 val; | ||
780 | |||
781 | val = mdio_read(ioaddr, MII_BMCR); | ||
782 | if (val & BMCR_RESET) { | ||
783 | // FIXME: needlessly high ? -- FR 02/07/2005 | ||
784 | mod_timer(&tp->timer, jiffies + HZ/10); | ||
785 | } else if (!(mdio_read(ioaddr, MII_BMSR) & BMSR_ANEGCOMPLETE)) { | ||
786 | net_link(tp, KERN_WARNING "%s: PHY reset until link up.\n", | ||
787 | dev->name); | ||
788 | mdio_write(ioaddr, MII_BMCR, val | BMCR_RESET); | ||
789 | mod_timer(&tp->timer, jiffies + SIS190_PHY_TIMEOUT); | ||
790 | } else { | ||
791 | /* Rejoice ! */ | ||
792 | struct { | ||
793 | int val; | ||
794 | const char *msg; | ||
795 | u16 ctl; | ||
796 | } reg31[] = { | ||
797 | { LPA_1000XFULL | LPA_SLCT, | ||
798 | "1000 Mbps Full Duplex", | ||
799 | 0x01 | _1000bpsF }, | ||
800 | { LPA_1000XHALF | LPA_SLCT, | ||
801 | "1000 Mbps Half Duplex", | ||
802 | 0x01 | _1000bpsH }, | ||
803 | { LPA_100FULL, | ||
804 | "100 Mbps Full Duplex", | ||
805 | 0x01 | _100bpsF }, | ||
806 | { LPA_100HALF, | ||
807 | "100 Mbps Half Duplex", | ||
808 | 0x01 | _100bpsH }, | ||
809 | { LPA_10FULL, | ||
810 | "10 Mbps Full Duplex", | ||
811 | 0x01 | _10bpsF }, | ||
812 | { LPA_10HALF, | ||
813 | "10 Mbps Half Duplex", | ||
814 | 0x01 | _10bpsH }, | ||
815 | { 0, "unknown", 0x0000 } | ||
816 | }, *p; | ||
817 | |||
818 | val = mdio_read(ioaddr, 0x1f); | ||
819 | net_link(tp, KERN_INFO "%s: mii ext = %04x.\n", dev->name, val); | ||
820 | |||
821 | val = mdio_read(ioaddr, MII_LPA); | ||
822 | net_link(tp, KERN_INFO "%s: mii lpa = %04x.\n", dev->name, val); | ||
823 | |||
824 | for (p = reg31; p->ctl; p++) { | ||
825 | if ((val & p->val) == p->val) | ||
826 | break; | ||
827 | } | ||
828 | if (p->ctl) | ||
829 | SIS_W16(StationControl, p->ctl); | ||
830 | net_link(tp, KERN_INFO "%s: link on %s mode.\n", dev->name, | ||
831 | p->msg); | ||
832 | netif_carrier_on(dev); | ||
833 | } | ||
834 | } | ||
835 | |||
836 | static void sis190_phy_timer(unsigned long __opaque) | ||
837 | { | ||
838 | struct net_device *dev = (struct net_device *)__opaque; | ||
839 | struct sis190_private *tp = netdev_priv(dev); | ||
840 | |||
841 | if (likely(netif_running(dev))) | ||
842 | schedule_work(&tp->phy_task); | ||
843 | } | ||
844 | |||
845 | static inline void sis190_delete_timer(struct net_device *dev) | ||
846 | { | ||
847 | struct sis190_private *tp = netdev_priv(dev); | ||
848 | |||
849 | del_timer_sync(&tp->timer); | ||
850 | } | ||
851 | |||
852 | static inline void sis190_request_timer(struct net_device *dev) | ||
853 | { | ||
854 | struct sis190_private *tp = netdev_priv(dev); | ||
855 | struct timer_list *timer = &tp->timer; | ||
856 | |||
857 | init_timer(timer); | ||
858 | timer->expires = jiffies + SIS190_PHY_TIMEOUT; | ||
859 | timer->data = (unsigned long)dev; | ||
860 | timer->function = sis190_phy_timer; | ||
861 | add_timer(timer); | ||
862 | } | ||
863 | |||
864 | static void sis190_set_rxbufsize(struct sis190_private *tp, | ||
865 | struct net_device *dev) | ||
866 | { | ||
867 | unsigned int mtu = dev->mtu; | ||
868 | |||
869 | tp->rx_buf_sz = (mtu > RX_BUF_SIZE) ? mtu + ETH_HLEN + 8 : RX_BUF_SIZE; | ||
870 | } | ||
871 | |||
872 | static int sis190_open(struct net_device *dev) | ||
873 | { | ||
874 | struct sis190_private *tp = netdev_priv(dev); | ||
875 | struct pci_dev *pdev = tp->pci_dev; | ||
876 | int rc = -ENOMEM; | ||
877 | |||
878 | sis190_set_rxbufsize(tp, dev); | ||
879 | |||
880 | /* | ||
881 | * Rx and Tx descriptors need 256 bytes alignment. | ||
882 | * pci_alloc_consistent() guarantees a stronger alignment. | ||
883 | */ | ||
884 | tp->TxDescRing = pci_alloc_consistent(pdev, TX_RING_BYTES, &tp->tx_dma); | ||
885 | if (!tp->TxDescRing) | ||
886 | goto out; | ||
887 | |||
888 | tp->RxDescRing = pci_alloc_consistent(pdev, RX_RING_BYTES, &tp->rx_dma); | ||
889 | if (!tp->RxDescRing) | ||
890 | goto err_free_tx_0; | ||
891 | |||
892 | rc = sis190_init_ring(dev); | ||
893 | if (rc < 0) | ||
894 | goto err_free_rx_1; | ||
895 | |||
896 | INIT_WORK(&tp->phy_task, sis190_phy_task, dev); | ||
897 | |||
898 | sis190_request_timer(dev); | ||
899 | |||
900 | rc = request_irq(dev->irq, sis190_interrupt, SA_SHIRQ, dev->name, dev); | ||
901 | if (rc < 0) | ||
902 | goto err_release_timer_2; | ||
903 | |||
904 | sis190_hw_start(dev); | ||
905 | out: | ||
906 | return rc; | ||
907 | |||
908 | err_release_timer_2: | ||
909 | sis190_delete_timer(dev); | ||
910 | sis190_rx_clear(tp); | ||
911 | err_free_rx_1: | ||
912 | pci_free_consistent(tp->pci_dev, RX_RING_BYTES, tp->RxDescRing, | ||
913 | tp->rx_dma); | ||
914 | err_free_tx_0: | ||
915 | pci_free_consistent(tp->pci_dev, TX_RING_BYTES, tp->TxDescRing, | ||
916 | tp->tx_dma); | ||
917 | goto out; | ||
918 | } | ||
919 | |||
920 | static void sis190_tx_clear(struct sis190_private *tp) | ||
921 | { | ||
922 | unsigned int i; | ||
923 | |||
924 | for (i = 0; i < NUM_TX_DESC; i++) { | ||
925 | struct sk_buff *skb = tp->Tx_skbuff[i]; | ||
926 | |||
927 | if (!skb) | ||
928 | continue; | ||
929 | |||
930 | sis190_unmap_tx_skb(tp->pci_dev, skb, tp->TxDescRing + i); | ||
931 | tp->Tx_skbuff[i] = NULL; | ||
932 | dev_kfree_skb(skb); | ||
933 | |||
934 | tp->stats.tx_dropped++; | ||
935 | } | ||
936 | tp->cur_tx = tp->dirty_tx = 0; | ||
937 | } | ||
938 | |||
939 | static void sis190_down(struct net_device *dev) | ||
940 | { | ||
941 | struct sis190_private *tp = netdev_priv(dev); | ||
942 | void __iomem *ioaddr = tp->mmio_addr; | ||
943 | unsigned int poll_locked = 0; | ||
944 | |||
945 | sis190_delete_timer(dev); | ||
946 | |||
947 | netif_stop_queue(dev); | ||
948 | |||
949 | flush_scheduled_work(); | ||
950 | |||
951 | do { | ||
952 | spin_lock_irq(&tp->lock); | ||
953 | |||
954 | sis190_asic_down(ioaddr); | ||
955 | |||
956 | spin_unlock_irq(&tp->lock); | ||
957 | |||
958 | synchronize_irq(dev->irq); | ||
959 | |||
960 | if (!poll_locked) { | ||
961 | netif_poll_disable(dev); | ||
962 | poll_locked++; | ||
963 | } | ||
964 | |||
965 | synchronize_sched(); | ||
966 | |||
967 | } while (SIS_R32(IntrMask)); | ||
968 | |||
969 | sis190_tx_clear(tp); | ||
970 | sis190_rx_clear(tp); | ||
971 | } | ||
972 | |||
973 | static int sis190_close(struct net_device *dev) | ||
974 | { | ||
975 | struct sis190_private *tp = netdev_priv(dev); | ||
976 | struct pci_dev *pdev = tp->pci_dev; | ||
977 | |||
978 | sis190_down(dev); | ||
979 | |||
980 | free_irq(dev->irq, dev); | ||
981 | |||
982 | netif_poll_enable(dev); | ||
983 | |||
984 | pci_free_consistent(pdev, TX_RING_BYTES, tp->TxDescRing, tp->tx_dma); | ||
985 | pci_free_consistent(pdev, RX_RING_BYTES, tp->RxDescRing, tp->rx_dma); | ||
986 | |||
987 | tp->TxDescRing = NULL; | ||
988 | tp->RxDescRing = NULL; | ||
989 | |||
990 | return 0; | ||
991 | } | ||
992 | |||
993 | static int sis190_start_xmit(struct sk_buff *skb, struct net_device *dev) | ||
994 | { | ||
995 | struct sis190_private *tp = netdev_priv(dev); | ||
996 | void __iomem *ioaddr = tp->mmio_addr; | ||
997 | u32 len, entry, dirty_tx; | ||
998 | struct TxDesc *desc; | ||
999 | dma_addr_t mapping; | ||
1000 | |||
1001 | if (unlikely(skb->len < ETH_ZLEN)) { | ||
1002 | skb = skb_padto(skb, ETH_ZLEN); | ||
1003 | if (!skb) { | ||
1004 | tp->stats.tx_dropped++; | ||
1005 | goto out; | ||
1006 | } | ||
1007 | len = ETH_ZLEN; | ||
1008 | } else { | ||
1009 | len = skb->len; | ||
1010 | } | ||
1011 | |||
1012 | entry = tp->cur_tx % NUM_TX_DESC; | ||
1013 | desc = tp->TxDescRing + entry; | ||
1014 | |||
1015 | if (unlikely(le32_to_cpu(desc->status) & OWNbit)) { | ||
1016 | netif_stop_queue(dev); | ||
1017 | net_tx_err(tp, KERN_ERR PFX | ||
1018 | "%s: BUG! Tx Ring full when queue awake!\n", | ||
1019 | dev->name); | ||
1020 | return NETDEV_TX_BUSY; | ||
1021 | } | ||
1022 | |||
1023 | mapping = pci_map_single(tp->pci_dev, skb->data, len, PCI_DMA_TODEVICE); | ||
1024 | |||
1025 | tp->Tx_skbuff[entry] = skb; | ||
1026 | |||
1027 | desc->PSize = cpu_to_le32(len); | ||
1028 | desc->addr = cpu_to_le32(mapping); | ||
1029 | |||
1030 | desc->size = cpu_to_le32(len); | ||
1031 | if (entry == (NUM_TX_DESC - 1)) | ||
1032 | desc->size |= cpu_to_le32(RingEnd); | ||
1033 | |||
1034 | wmb(); | ||
1035 | |||
1036 | desc->status = cpu_to_le32(OWNbit | INTbit | DEFbit | CRCbit | PADbit); | ||
1037 | |||
1038 | tp->cur_tx++; | ||
1039 | |||
1040 | smp_wmb(); | ||
1041 | |||
1042 | SIS_W32(TxControl, 0x1a00 | CmdReset | CmdTxEnb); | ||
1043 | |||
1044 | dev->trans_start = jiffies; | ||
1045 | |||
1046 | dirty_tx = tp->dirty_tx; | ||
1047 | if ((tp->cur_tx - NUM_TX_DESC) == dirty_tx) { | ||
1048 | netif_stop_queue(dev); | ||
1049 | smp_rmb(); | ||
1050 | if (dirty_tx != tp->dirty_tx) | ||
1051 | netif_wake_queue(dev); | ||
1052 | } | ||
1053 | out: | ||
1054 | return NETDEV_TX_OK; | ||
1055 | } | ||
1056 | |||
1057 | static struct net_device_stats *sis190_get_stats(struct net_device *dev) | ||
1058 | { | ||
1059 | struct sis190_private *tp = netdev_priv(dev); | ||
1060 | |||
1061 | return &tp->stats; | ||
1062 | } | ||
1063 | |||
1064 | static void sis190_release_board(struct pci_dev *pdev) | ||
1065 | { | ||
1066 | struct net_device *dev = pci_get_drvdata(pdev); | ||
1067 | struct sis190_private *tp = netdev_priv(dev); | ||
1068 | |||
1069 | iounmap(tp->mmio_addr); | ||
1070 | pci_release_regions(pdev); | ||
1071 | pci_disable_device(pdev); | ||
1072 | free_netdev(dev); | ||
1073 | } | ||
1074 | |||
1075 | static struct net_device * __devinit sis190_init_board(struct pci_dev *pdev) | ||
1076 | { | ||
1077 | struct sis190_private *tp; | ||
1078 | struct net_device *dev; | ||
1079 | void __iomem *ioaddr; | ||
1080 | int rc; | ||
1081 | |||
1082 | dev = alloc_etherdev(sizeof(*tp)); | ||
1083 | if (!dev) { | ||
1084 | net_drv(&debug, KERN_ERR PFX "unable to alloc new ethernet\n"); | ||
1085 | rc = -ENOMEM; | ||
1086 | goto err_out_0; | ||
1087 | } | ||
1088 | |||
1089 | SET_MODULE_OWNER(dev); | ||
1090 | SET_NETDEV_DEV(dev, &pdev->dev); | ||
1091 | |||
1092 | tp = netdev_priv(dev); | ||
1093 | tp->msg_enable = netif_msg_init(debug.msg_enable, SIS190_MSG_DEFAULT); | ||
1094 | |||
1095 | rc = pci_enable_device(pdev); | ||
1096 | if (rc < 0) { | ||
1097 | net_probe(tp, KERN_ERR "%s: enable failure\n", pci_name(pdev)); | ||
1098 | goto err_free_dev_1; | ||
1099 | } | ||
1100 | |||
1101 | rc = -ENODEV; | ||
1102 | |||
1103 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { | ||
1104 | net_probe(tp, KERN_ERR "%s: region #0 is no MMIO resource.\n", | ||
1105 | pci_name(pdev)); | ||
1106 | goto err_pci_disable_2; | ||
1107 | } | ||
1108 | if (pci_resource_len(pdev, 0) < SIS190_REGS_SIZE) { | ||
1109 | net_probe(tp, KERN_ERR "%s: invalid PCI region size(s).\n", | ||
1110 | pci_name(pdev)); | ||
1111 | goto err_pci_disable_2; | ||
1112 | } | ||
1113 | |||
1114 | rc = pci_request_regions(pdev, DRV_NAME); | ||
1115 | if (rc < 0) { | ||
1116 | net_probe(tp, KERN_ERR PFX "%s: could not request regions.\n", | ||
1117 | pci_name(pdev)); | ||
1118 | goto err_pci_disable_2; | ||
1119 | } | ||
1120 | |||
1121 | rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | ||
1122 | if (rc < 0) { | ||
1123 | net_probe(tp, KERN_ERR "%s: DMA configuration failed.\n", | ||
1124 | pci_name(pdev)); | ||
1125 | goto err_free_res_3; | ||
1126 | } | ||
1127 | |||
1128 | pci_set_master(pdev); | ||
1129 | |||
1130 | ioaddr = ioremap(pci_resource_start(pdev, 0), SIS190_REGS_SIZE); | ||
1131 | if (!ioaddr) { | ||
1132 | net_probe(tp, KERN_ERR "%s: cannot remap MMIO, aborting\n", | ||
1133 | pci_name(pdev)); | ||
1134 | rc = -EIO; | ||
1135 | goto err_free_res_3; | ||
1136 | } | ||
1137 | |||
1138 | tp->pci_dev = pdev; | ||
1139 | tp->mmio_addr = ioaddr; | ||
1140 | |||
1141 | sis190_irq_mask_and_ack(ioaddr); | ||
1142 | |||
1143 | sis190_soft_reset(ioaddr); | ||
1144 | out: | ||
1145 | return dev; | ||
1146 | |||
1147 | err_free_res_3: | ||
1148 | pci_release_regions(pdev); | ||
1149 | err_pci_disable_2: | ||
1150 | pci_disable_device(pdev); | ||
1151 | err_free_dev_1: | ||
1152 | free_netdev(dev); | ||
1153 | err_out_0: | ||
1154 | dev = ERR_PTR(rc); | ||
1155 | goto out; | ||
1156 | } | ||
1157 | |||
1158 | static void sis190_tx_timeout(struct net_device *dev) | ||
1159 | { | ||
1160 | struct sis190_private *tp = netdev_priv(dev); | ||
1161 | void __iomem *ioaddr = tp->mmio_addr; | ||
1162 | u8 tmp8; | ||
1163 | |||
1164 | /* Disable Tx, if not already */ | ||
1165 | tmp8 = SIS_R8(TxControl); | ||
1166 | if (tmp8 & CmdTxEnb) | ||
1167 | SIS_W8(TxControl, tmp8 & ~CmdTxEnb); | ||
1168 | |||
1169 | /* Disable interrupts by clearing the interrupt mask. */ | ||
1170 | SIS_W32(IntrMask, 0x0000); | ||
1171 | |||
1172 | /* Stop a shared interrupt from scavenging while we are. */ | ||
1173 | spin_lock_irq(&tp->lock); | ||
1174 | sis190_tx_clear(tp); | ||
1175 | spin_unlock_irq(&tp->lock); | ||
1176 | |||
1177 | /* ...and finally, reset everything. */ | ||
1178 | sis190_hw_start(dev); | ||
1179 | |||
1180 | netif_wake_queue(dev); | ||
1181 | } | ||
1182 | |||
1183 | static void sis190_set_speed_auto(struct net_device *dev) | ||
1184 | { | ||
1185 | struct sis190_private *tp = netdev_priv(dev); | ||
1186 | void __iomem *ioaddr = tp->mmio_addr; | ||
1187 | int val; | ||
1188 | |||
1189 | net_link(tp, KERN_INFO "%s: Enabling Auto-negotiation.\n", dev->name); | ||
1190 | |||
1191 | val = mdio_read(ioaddr, MII_ADVERTISE); | ||
1192 | |||
1193 | // Enable 10/100 Full/Half Mode, leave MII_ADVERTISE bit4:0 | ||
1194 | // unchanged. | ||
1195 | mdio_write(ioaddr, MII_ADVERTISE, (val & ADVERTISE_SLCT) | | ||
1196 | ADVERTISE_100FULL | ADVERTISE_10FULL | | ||
1197 | ADVERTISE_100HALF | ADVERTISE_10HALF); | ||
1198 | |||
1199 | // Enable 1000 Full Mode. | ||
1200 | mdio_write(ioaddr, MII_CTRL1000, ADVERTISE_1000FULL); | ||
1201 | |||
1202 | // Enable auto-negotiation and restart auto-negotiation. | ||
1203 | mdio_write(ioaddr, MII_BMCR, | ||
1204 | BMCR_ANENABLE | BMCR_ANRESTART | BMCR_RESET); | ||
1205 | } | ||
1206 | |||
1207 | static void sis190_get_drvinfo(struct net_device *dev, | ||
1208 | struct ethtool_drvinfo *info) | ||
1209 | { | ||
1210 | struct sis190_private *tp = netdev_priv(dev); | ||
1211 | |||
1212 | strcpy(info->driver, DRV_NAME); | ||
1213 | strcpy(info->version, DRV_VERSION); | ||
1214 | strcpy(info->bus_info, pci_name(tp->pci_dev)); | ||
1215 | } | ||
1216 | |||
1217 | static int sis190_get_regs_len(struct net_device *dev) | ||
1218 | { | ||
1219 | return SIS190_REGS_SIZE; | ||
1220 | } | ||
1221 | |||
1222 | static void sis190_get_regs(struct net_device *dev, struct ethtool_regs *regs, | ||
1223 | void *p) | ||
1224 | { | ||
1225 | struct sis190_private *tp = netdev_priv(dev); | ||
1226 | unsigned long flags; | ||
1227 | |||
1228 | if (regs->len > SIS190_REGS_SIZE) | ||
1229 | regs->len = SIS190_REGS_SIZE; | ||
1230 | |||
1231 | spin_lock_irqsave(&tp->lock, flags); | ||
1232 | memcpy_fromio(p, tp->mmio_addr, regs->len); | ||
1233 | spin_unlock_irqrestore(&tp->lock, flags); | ||
1234 | } | ||
1235 | |||
1236 | static u32 sis190_get_msglevel(struct net_device *dev) | ||
1237 | { | ||
1238 | struct sis190_private *tp = netdev_priv(dev); | ||
1239 | |||
1240 | return tp->msg_enable; | ||
1241 | } | ||
1242 | |||
1243 | static void sis190_set_msglevel(struct net_device *dev, u32 value) | ||
1244 | { | ||
1245 | struct sis190_private *tp = netdev_priv(dev); | ||
1246 | |||
1247 | tp->msg_enable = value; | ||
1248 | } | ||
1249 | |||
1250 | static struct ethtool_ops sis190_ethtool_ops = { | ||
1251 | .get_drvinfo = sis190_get_drvinfo, | ||
1252 | .get_regs_len = sis190_get_regs_len, | ||
1253 | .get_regs = sis190_get_regs, | ||
1254 | .get_link = ethtool_op_get_link, | ||
1255 | .get_msglevel = sis190_get_msglevel, | ||
1256 | .set_msglevel = sis190_set_msglevel, | ||
1257 | }; | ||
1258 | |||
1259 | static int __devinit sis190_init_one(struct pci_dev *pdev, | ||
1260 | const struct pci_device_id *ent) | ||
1261 | { | ||
1262 | static int printed_version = 0; | ||
1263 | struct sis190_private *tp; | ||
1264 | struct net_device *dev; | ||
1265 | void __iomem *ioaddr; | ||
1266 | int i, rc; | ||
1267 | |||
1268 | if (!printed_version) { | ||
1269 | net_drv(&debug, KERN_INFO SIS190_DRIVER_NAME " loaded.\n"); | ||
1270 | printed_version = 1; | ||
1271 | } | ||
1272 | |||
1273 | dev = sis190_init_board(pdev); | ||
1274 | if (IS_ERR(dev)) { | ||
1275 | rc = PTR_ERR(dev); | ||
1276 | goto out; | ||
1277 | } | ||
1278 | |||
1279 | tp = netdev_priv(dev); | ||
1280 | ioaddr = tp->mmio_addr; | ||
1281 | |||
1282 | /* Get MAC address */ | ||
1283 | /* Read node address from the EEPROM */ | ||
1284 | |||
1285 | if (SIS_R32(ROMControl) & 0x4) { | ||
1286 | for (i = 0; i < 3; i++) { | ||
1287 | SIS_W16(RxMacAddr + 2*i, | ||
1288 | sis190_read_eeprom(ioaddr, 3 + i)); | ||
1289 | } | ||
1290 | } | ||
1291 | |||
1292 | for (i = 0; i < MAC_ADDR_LEN; i++) | ||
1293 | dev->dev_addr[i] = SIS_R8(RxMacAddr + i); | ||
1294 | |||
1295 | INIT_WORK(&tp->phy_task, sis190_phy_task, dev); | ||
1296 | |||
1297 | dev->open = sis190_open; | ||
1298 | dev->stop = sis190_close; | ||
1299 | dev->get_stats = sis190_get_stats; | ||
1300 | dev->tx_timeout = sis190_tx_timeout; | ||
1301 | dev->watchdog_timeo = SIS190_TX_TIMEOUT; | ||
1302 | dev->hard_start_xmit = sis190_start_xmit; | ||
1303 | dev->set_multicast_list = sis190_set_rx_mode; | ||
1304 | SET_ETHTOOL_OPS(dev, &sis190_ethtool_ops); | ||
1305 | dev->irq = pdev->irq; | ||
1306 | dev->base_addr = (unsigned long) 0xdead; | ||
1307 | |||
1308 | spin_lock_init(&tp->lock); | ||
1309 | rc = register_netdev(dev); | ||
1310 | if (rc < 0) { | ||
1311 | sis190_release_board(pdev); | ||
1312 | goto out; | ||
1313 | } | ||
1314 | |||
1315 | pci_set_drvdata(pdev, dev); | ||
1316 | |||
1317 | net_probe(tp, KERN_INFO "%s: %s at %p (IRQ: %d), " | ||
1318 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n", | ||
1319 | pci_name(pdev), sis_chip_info[ent->driver_data].name, | ||
1320 | ioaddr, dev->irq, | ||
1321 | dev->dev_addr[0], dev->dev_addr[1], | ||
1322 | dev->dev_addr[2], dev->dev_addr[3], | ||
1323 | dev->dev_addr[4], dev->dev_addr[5]); | ||
1324 | |||
1325 | netif_carrier_off(dev); | ||
1326 | |||
1327 | sis190_set_speed_auto(dev); | ||
1328 | out: | ||
1329 | return rc; | ||
1330 | } | ||
1331 | |||
1332 | static void __devexit sis190_remove_one(struct pci_dev *pdev) | ||
1333 | { | ||
1334 | struct net_device *dev = pci_get_drvdata(pdev); | ||
1335 | |||
1336 | unregister_netdev(dev); | ||
1337 | sis190_release_board(pdev); | ||
1338 | pci_set_drvdata(pdev, NULL); | ||
1339 | } | ||
1340 | |||
1341 | static struct pci_driver sis190_pci_driver = { | ||
1342 | .name = DRV_NAME, | ||
1343 | .id_table = sis190_pci_tbl, | ||
1344 | .probe = sis190_init_one, | ||
1345 | .remove = __devexit_p(sis190_remove_one), | ||
1346 | }; | ||
1347 | |||
1348 | static int __init sis190_init_module(void) | ||
1349 | { | ||
1350 | return pci_module_init(&sis190_pci_driver); | ||
1351 | } | ||
1352 | |||
1353 | static void __exit sis190_cleanup_module(void) | ||
1354 | { | ||
1355 | pci_unregister_driver(&sis190_pci_driver); | ||
1356 | } | ||
1357 | |||
1358 | module_init(sis190_init_module); | ||
1359 | module_exit(sis190_cleanup_module); | ||