Commit | Line | Data |
---|---|---|
890e8d0a FR |
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 | ||
40292fb0 FR |
8 | Based on r8169.c, tg3.c, 8139cp.c, skge.c, epic100.c and SiS 190/191 |
9 | genuine driver. | |
890e8d0a FR |
10 | |
11 | This software may be used and distributed according to the terms of | |
12 | the GNU General Public License (GPL), incorporated herein by reference. | |
13 | Drivers based on or derived from this code fall under the GPL and must | |
14 | retain the authorship, copyright and license notice. This file is not | |
15 | a complete program and may only be used when the entire operating | |
16 | system is licensed under the GPL. | |
17 | ||
18 | See the file COPYING in this distribution for more information. | |
19 | ||
20 | */ | |
21 | ||
22 | #include <linux/module.h> | |
23 | #include <linux/moduleparam.h> | |
24 | #include <linux/netdevice.h> | |
43afb949 | 25 | #include <linux/rtnetlink.h> |
890e8d0a FR |
26 | #include <linux/etherdevice.h> |
27 | #include <linux/ethtool.h> | |
28 | #include <linux/pci.h> | |
29 | #include <linux/mii.h> | |
30 | #include <linux/delay.h> | |
31 | #include <linux/crc32.h> | |
32 | #include <linux/dma-mapping.h> | |
33 | #include <asm/irq.h> | |
34 | ||
35 | #define net_drv(p, arg...) if (netif_msg_drv(p)) \ | |
36 | printk(arg) | |
37 | #define net_probe(p, arg...) if (netif_msg_probe(p)) \ | |
38 | printk(arg) | |
39 | #define net_link(p, arg...) if (netif_msg_link(p)) \ | |
40 | printk(arg) | |
41 | #define net_intr(p, arg...) if (netif_msg_intr(p)) \ | |
42 | printk(arg) | |
43 | #define net_tx_err(p, arg...) if (netif_msg_tx_err(p)) \ | |
44 | printk(arg) | |
45 | ||
fcb9821d FR |
46 | #define PHY_MAX_ADDR 32 |
47 | #define PHY_ID_ANY 0x1f | |
48 | #define MII_REG_ANY 0x1f | |
49 | ||
bea3348e | 50 | #define DRV_VERSION "1.2" |
890e8d0a FR |
51 | #define DRV_NAME "sis190" |
52 | #define SIS190_DRIVER_NAME DRV_NAME " Gigabit Ethernet driver " DRV_VERSION | |
53 | #define PFX DRV_NAME ": " | |
54 | ||
890e8d0a FR |
55 | #define sis190_rx_skb netif_rx |
56 | #define sis190_rx_quota(count, quota) count | |
890e8d0a FR |
57 | |
58 | #define MAC_ADDR_LEN 6 | |
59 | ||
bcad5e53 FR |
60 | #define NUM_TX_DESC 64 /* [8..1024] */ |
61 | #define NUM_RX_DESC 64 /* [8..8192] */ | |
890e8d0a FR |
62 | #define TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc)) |
63 | #define RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc)) | |
64 | #define RX_BUF_SIZE 1536 | |
8b5641d4 | 65 | #define RX_BUF_MASK 0xfff8 |
890e8d0a FR |
66 | |
67 | #define SIS190_REGS_SIZE 0x80 | |
68 | #define SIS190_TX_TIMEOUT (6*HZ) | |
69 | #define SIS190_PHY_TIMEOUT (10*HZ) | |
70 | #define SIS190_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | \ | |
71 | NETIF_MSG_LINK | NETIF_MSG_IFUP | \ | |
72 | NETIF_MSG_IFDOWN) | |
73 | ||
74 | /* Enhanced PHY access register bit definitions */ | |
75 | #define EhnMIIread 0x0000 | |
76 | #define EhnMIIwrite 0x0020 | |
77 | #define EhnMIIdataShift 16 | |
78 | #define EhnMIIpmdShift 6 /* 7016 only */ | |
79 | #define EhnMIIregShift 11 | |
80 | #define EhnMIIreq 0x0010 | |
81 | #define EhnMIInotDone 0x0010 | |
82 | ||
83 | /* Write/read MMIO register */ | |
84 | #define SIS_W8(reg, val) writeb ((val), ioaddr + (reg)) | |
85 | #define SIS_W16(reg, val) writew ((val), ioaddr + (reg)) | |
86 | #define SIS_W32(reg, val) writel ((val), ioaddr + (reg)) | |
87 | #define SIS_R8(reg) readb (ioaddr + (reg)) | |
88 | #define SIS_R16(reg) readw (ioaddr + (reg)) | |
89 | #define SIS_R32(reg) readl (ioaddr + (reg)) | |
90 | ||
91 | #define SIS_PCI_COMMIT() SIS_R32(IntrControl) | |
92 | ||
93 | enum sis190_registers { | |
94 | TxControl = 0x00, | |
95 | TxDescStartAddr = 0x04, | |
188f23ba FR |
96 | rsv0 = 0x08, // reserved |
97 | TxSts = 0x0c, // unused (Control/Status) | |
890e8d0a FR |
98 | RxControl = 0x10, |
99 | RxDescStartAddr = 0x14, | |
188f23ba FR |
100 | rsv1 = 0x18, // reserved |
101 | RxSts = 0x1c, // unused | |
890e8d0a FR |
102 | IntrStatus = 0x20, |
103 | IntrMask = 0x24, | |
104 | IntrControl = 0x28, | |
188f23ba FR |
105 | IntrTimer = 0x2c, // unused (Interupt Timer) |
106 | PMControl = 0x30, // unused (Power Mgmt Control/Status) | |
107 | rsv2 = 0x34, // reserved | |
890e8d0a FR |
108 | ROMControl = 0x38, |
109 | ROMInterface = 0x3c, | |
110 | StationControl = 0x40, | |
111 | GMIIControl = 0x44, | |
188f23ba FR |
112 | GIoCR = 0x48, // unused (GMAC IO Compensation) |
113 | GIoCtrl = 0x4c, // unused (GMAC IO Control) | |
890e8d0a | 114 | TxMacControl = 0x50, |
188f23ba FR |
115 | TxLimit = 0x54, // unused (Tx MAC Timer/TryLimit) |
116 | RGDelay = 0x58, // unused (RGMII Tx Internal Delay) | |
117 | rsv3 = 0x5c, // reserved | |
890e8d0a FR |
118 | RxMacControl = 0x60, |
119 | RxMacAddr = 0x62, | |
120 | RxHashTable = 0x68, | |
121 | // Undocumented = 0x6c, | |
188f23ba FR |
122 | RxWolCtrl = 0x70, |
123 | RxWolData = 0x74, // unused (Rx WOL Data Access) | |
124 | RxMPSControl = 0x78, // unused (Rx MPS Control) | |
125 | rsv4 = 0x7c, // reserved | |
890e8d0a FR |
126 | }; |
127 | ||
128 | enum sis190_register_content { | |
129 | /* IntrStatus */ | |
130 | SoftInt = 0x40000000, // unused | |
131 | Timeup = 0x20000000, // unused | |
132 | PauseFrame = 0x00080000, // unused | |
133 | MagicPacket = 0x00040000, // unused | |
134 | WakeupFrame = 0x00020000, // unused | |
135 | LinkChange = 0x00010000, | |
136 | RxQEmpty = 0x00000080, | |
137 | RxQInt = 0x00000040, | |
138 | TxQ1Empty = 0x00000020, // unused | |
139 | TxQ1Int = 0x00000010, | |
140 | TxQ0Empty = 0x00000008, // unused | |
141 | TxQ0Int = 0x00000004, | |
142 | RxHalt = 0x00000002, | |
143 | TxHalt = 0x00000001, | |
144 | ||
890e8d0a FR |
145 | /* {Rx/Tx}CmdBits */ |
146 | CmdReset = 0x10, | |
147 | CmdRxEnb = 0x08, // unused | |
148 | CmdTxEnb = 0x01, | |
149 | RxBufEmpty = 0x01, // unused | |
150 | ||
151 | /* Cfg9346Bits */ | |
152 | Cfg9346_Lock = 0x00, // unused | |
153 | Cfg9346_Unlock = 0xc0, // unused | |
154 | ||
155 | /* RxMacControl */ | |
156 | AcceptErr = 0x20, // unused | |
157 | AcceptRunt = 0x10, // unused | |
158 | AcceptBroadcast = 0x0800, | |
159 | AcceptMulticast = 0x0400, | |
160 | AcceptMyPhys = 0x0200, | |
161 | AcceptAllPhys = 0x0100, | |
162 | ||
163 | /* RxConfigBits */ | |
164 | RxCfgFIFOShift = 13, | |
165 | RxCfgDMAShift = 8, // 0x1a in RxControl ? | |
166 | ||
167 | /* TxConfigBits */ | |
168 | TxInterFrameGapShift = 24, | |
169 | TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */ | |
170 | ||
890e8d0a FR |
171 | LinkStatus = 0x02, // unused |
172 | FullDup = 0x01, // unused | |
173 | ||
174 | /* TBICSRBit */ | |
175 | TBILinkOK = 0x02000000, // unused | |
176 | }; | |
177 | ||
178 | struct TxDesc { | |
3cec93c7 FR |
179 | __le32 PSize; |
180 | __le32 status; | |
181 | __le32 addr; | |
182 | __le32 size; | |
890e8d0a FR |
183 | }; |
184 | ||
185 | struct RxDesc { | |
3cec93c7 FR |
186 | __le32 PSize; |
187 | __le32 status; | |
188 | __le32 addr; | |
189 | __le32 size; | |
890e8d0a FR |
190 | }; |
191 | ||
192 | enum _DescStatusBit { | |
193 | /* _Desc.status */ | |
bcad5e53 FR |
194 | OWNbit = 0x80000000, // RXOWN/TXOWN |
195 | INTbit = 0x40000000, // RXINT/TXINT | |
196 | CRCbit = 0x00020000, // CRCOFF/CRCEN | |
197 | PADbit = 0x00010000, // PREADD/PADEN | |
890e8d0a | 198 | /* _Desc.size */ |
bcad5e53 FR |
199 | RingEnd = 0x80000000, |
200 | /* TxDesc.status */ | |
201 | LSEN = 0x08000000, // TSO ? -- FR | |
202 | IPCS = 0x04000000, | |
203 | TCPCS = 0x02000000, | |
204 | UDPCS = 0x01000000, | |
205 | BSTEN = 0x00800000, | |
206 | EXTEN = 0x00400000, | |
207 | DEFEN = 0x00200000, | |
208 | BKFEN = 0x00100000, | |
209 | CRSEN = 0x00080000, | |
210 | COLEN = 0x00040000, | |
211 | THOL3 = 0x30000000, | |
212 | THOL2 = 0x20000000, | |
213 | THOL1 = 0x10000000, | |
214 | THOL0 = 0x00000000, | |
697c2696 FR |
215 | |
216 | WND = 0x00080000, | |
217 | TABRT = 0x00040000, | |
218 | FIFO = 0x00020000, | |
219 | LINK = 0x00010000, | |
220 | ColCountMask = 0x0000ffff, | |
bcad5e53 FR |
221 | /* RxDesc.status */ |
222 | IPON = 0x20000000, | |
223 | TCPON = 0x10000000, | |
224 | UDPON = 0x08000000, | |
225 | Wakup = 0x00400000, | |
226 | Magic = 0x00200000, | |
227 | Pause = 0x00100000, | |
228 | DEFbit = 0x00200000, | |
229 | BCAST = 0x000c0000, | |
230 | MCAST = 0x00080000, | |
231 | UCAST = 0x00040000, | |
232 | /* RxDesc.PSize */ | |
233 | TAGON = 0x80000000, | |
234 | RxDescCountMask = 0x7f000000, // multi-desc pkt when > 1 ? -- FR | |
235 | ABORT = 0x00800000, | |
236 | SHORT = 0x00400000, | |
237 | LIMIT = 0x00200000, | |
238 | MIIER = 0x00100000, | |
239 | OVRUN = 0x00080000, | |
240 | NIBON = 0x00040000, | |
241 | COLON = 0x00020000, | |
242 | CRCOK = 0x00010000, | |
890e8d0a | 243 | RxSizeMask = 0x0000ffff |
bcad5e53 FR |
244 | /* |
245 | * The asic could apparently do vlan, TSO, jumbo (sis191 only) and | |
246 | * provide two (unused with Linux) Tx queues. No publically | |
247 | * available documentation alas. | |
248 | */ | |
890e8d0a FR |
249 | }; |
250 | ||
40292fb0 FR |
251 | enum sis190_eeprom_access_register_bits { |
252 | EECS = 0x00000001, // unused | |
253 | EECLK = 0x00000002, // unused | |
254 | EEDO = 0x00000008, // unused | |
255 | EEDI = 0x00000004, // unused | |
256 | EEREQ = 0x00000080, | |
257 | EEROP = 0x00000200, | |
258 | EEWOP = 0x00000100 // unused | |
259 | }; | |
260 | ||
830fb7d2 FR |
261 | /* EEPROM Addresses */ |
262 | enum sis190_eeprom_address { | |
263 | EEPROMSignature = 0x00, | |
264 | EEPROMCLK = 0x01, // unused | |
265 | EEPROMInfo = 0x02, | |
266 | EEPROMMACAddr = 0x03 | |
267 | }; | |
268 | ||
900eb9d6 FR |
269 | enum sis190_feature { |
270 | F_HAS_RGMII = 1, | |
c3d6f1f2 FR |
271 | F_PHY_88E1111 = 2, |
272 | F_PHY_BCM5461 = 4 | |
900eb9d6 FR |
273 | }; |
274 | ||
890e8d0a FR |
275 | struct sis190_private { |
276 | void __iomem *mmio_addr; | |
277 | struct pci_dev *pci_dev; | |
c4028958 | 278 | struct net_device *dev; |
890e8d0a FR |
279 | spinlock_t lock; |
280 | u32 rx_buf_sz; | |
281 | u32 cur_rx; | |
282 | u32 cur_tx; | |
283 | u32 dirty_rx; | |
284 | u32 dirty_tx; | |
285 | dma_addr_t rx_dma; | |
286 | dma_addr_t tx_dma; | |
287 | struct RxDesc *RxDescRing; | |
288 | struct TxDesc *TxDescRing; | |
289 | struct sk_buff *Rx_skbuff[NUM_RX_DESC]; | |
290 | struct sk_buff *Tx_skbuff[NUM_TX_DESC]; | |
291 | struct work_struct phy_task; | |
292 | struct timer_list timer; | |
293 | u32 msg_enable; | |
43afb949 | 294 | struct mii_if_info mii_if; |
fcb9821d | 295 | struct list_head first_phy; |
900eb9d6 | 296 | u32 features; |
fcb9821d FR |
297 | }; |
298 | ||
299 | struct sis190_phy { | |
300 | struct list_head list; | |
301 | int phy_id; | |
302 | u16 id[2]; | |
303 | u16 status; | |
304 | u8 type; | |
305 | }; | |
306 | ||
307 | enum sis190_phy_type { | |
308 | UNKNOWN = 0x00, | |
309 | HOME = 0x01, | |
310 | LAN = 0x02, | |
311 | MIX = 0x03 | |
312 | }; | |
313 | ||
314 | static struct mii_chip_info { | |
315 | const char *name; | |
316 | u16 id[2]; | |
317 | unsigned int type; | |
900eb9d6 | 318 | u32 feature; |
fcb9821d | 319 | } mii_chip_table[] = { |
708f6e27 | 320 | { "Atheros PHY AR8012", { 0x004d, 0xd020 }, LAN, 0 }, |
c3d6f1f2 | 321 | { "Broadcom PHY BCM5461", { 0x0020, 0x60c0 }, LAN, F_PHY_BCM5461 }, |
bd7a4448 | 322 | { "Broadcom PHY AC131", { 0x0143, 0xbc70 }, LAN, 0 }, |
900eb9d6 FR |
323 | { "Agere PHY ET1101B", { 0x0282, 0xf010 }, LAN, 0 }, |
324 | { "Marvell PHY 88E1111", { 0x0141, 0x0cc0 }, LAN, F_PHY_88E1111 }, | |
325 | { "Realtek PHY RTL8201", { 0x0000, 0x8200 }, LAN, 0 }, | |
fcb9821d | 326 | { NULL, } |
890e8d0a FR |
327 | }; |
328 | ||
3c6bee1d | 329 | static const struct { |
890e8d0a | 330 | const char *name; |
890e8d0a | 331 | } sis_chip_info[] = { |
e797637f FR |
332 | { "SiS 190 PCI Fast Ethernet adapter" }, |
333 | { "SiS 191 PCI Gigabit Ethernet adapter" }, | |
890e8d0a FR |
334 | }; |
335 | ||
8ee8e922 | 336 | static struct pci_device_id sis190_pci_tbl[] = { |
890e8d0a | 337 | { PCI_DEVICE(PCI_VENDOR_ID_SI, 0x0190), 0, 0, 0 }, |
e797637f | 338 | { PCI_DEVICE(PCI_VENDOR_ID_SI, 0x0191), 0, 0, 1 }, |
890e8d0a FR |
339 | { 0, }, |
340 | }; | |
341 | ||
342 | MODULE_DEVICE_TABLE(pci, sis190_pci_tbl); | |
343 | ||
344 | static int rx_copybreak = 200; | |
345 | ||
346 | static struct { | |
347 | u32 msg_enable; | |
348 | } debug = { -1 }; | |
349 | ||
350 | MODULE_DESCRIPTION("SiS sis190 Gigabit Ethernet driver"); | |
351 | module_param(rx_copybreak, int, 0); | |
352 | MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames"); | |
353 | module_param_named(debug, debug.msg_enable, int, 0); | |
354 | MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)"); | |
355 | MODULE_AUTHOR("K.M. Liu <kmliu@sis.com>, Ueimor <romieu@fr.zoreil.com>"); | |
356 | MODULE_VERSION(DRV_VERSION); | |
357 | MODULE_LICENSE("GPL"); | |
358 | ||
359 | static const u32 sis190_intr_mask = | |
21461380 | 360 | RxQEmpty | RxQInt | TxQ1Int | TxQ0Int | RxHalt | TxHalt | LinkChange; |
890e8d0a FR |
361 | |
362 | /* | |
363 | * Maximum number of multicast addresses to filter (vs. Rx-all-multicast). | |
364 | * The chips use a 64 element hash table based on the Ethernet CRC. | |
365 | */ | |
f71e1309 | 366 | static const int multicast_filter_limit = 32; |
890e8d0a FR |
367 | |
368 | static void __mdio_cmd(void __iomem *ioaddr, u32 ctl) | |
369 | { | |
370 | unsigned int i; | |
371 | ||
372 | SIS_W32(GMIIControl, ctl); | |
373 | ||
374 | msleep(1); | |
375 | ||
376 | for (i = 0; i < 100; i++) { | |
377 | if (!(SIS_R32(GMIIControl) & EhnMIInotDone)) | |
378 | break; | |
379 | msleep(1); | |
380 | } | |
381 | ||
7bf3f232 | 382 | if (i > 99) |
890e8d0a FR |
383 | printk(KERN_ERR PFX "PHY command failed !\n"); |
384 | } | |
385 | ||
9ede109b | 386 | static void mdio_write(void __iomem *ioaddr, int phy_id, int reg, int val) |
890e8d0a | 387 | { |
890e8d0a | 388 | __mdio_cmd(ioaddr, EhnMIIreq | EhnMIIwrite | |
9ede109b | 389 | (((u32) reg) << EhnMIIregShift) | (phy_id << EhnMIIpmdShift) | |
890e8d0a FR |
390 | (((u32) val) << EhnMIIdataShift)); |
391 | } | |
392 | ||
9ede109b | 393 | static int mdio_read(void __iomem *ioaddr, int phy_id, int reg) |
890e8d0a | 394 | { |
890e8d0a | 395 | __mdio_cmd(ioaddr, EhnMIIreq | EhnMIIread | |
9ede109b | 396 | (((u32) reg) << EhnMIIregShift) | (phy_id << EhnMIIpmdShift)); |
890e8d0a FR |
397 | |
398 | return (u16) (SIS_R32(GMIIControl) >> EhnMIIdataShift); | |
399 | } | |
400 | ||
43afb949 FR |
401 | static void __mdio_write(struct net_device *dev, int phy_id, int reg, int val) |
402 | { | |
403 | struct sis190_private *tp = netdev_priv(dev); | |
404 | ||
9ede109b | 405 | mdio_write(tp->mmio_addr, phy_id, reg, val); |
43afb949 FR |
406 | } |
407 | ||
408 | static int __mdio_read(struct net_device *dev, int phy_id, int reg) | |
409 | { | |
410 | struct sis190_private *tp = netdev_priv(dev); | |
411 | ||
9ede109b | 412 | return mdio_read(tp->mmio_addr, phy_id, reg); |
43afb949 FR |
413 | } |
414 | ||
fc10c39d FR |
415 | static u16 mdio_read_latched(void __iomem *ioaddr, int phy_id, int reg) |
416 | { | |
417 | mdio_read(ioaddr, phy_id, reg); | |
418 | return mdio_read(ioaddr, phy_id, reg); | |
419 | } | |
420 | ||
40292fb0 | 421 | static u16 __devinit sis190_read_eeprom(void __iomem *ioaddr, u32 reg) |
890e8d0a | 422 | { |
40292fb0 | 423 | u16 data = 0xffff; |
890e8d0a | 424 | unsigned int i; |
890e8d0a FR |
425 | |
426 | if (!(SIS_R32(ROMControl) & 0x0002)) | |
427 | return 0; | |
428 | ||
40292fb0 | 429 | SIS_W32(ROMInterface, EEREQ | EEROP | (reg << 10)); |
890e8d0a FR |
430 | |
431 | for (i = 0; i < 200; i++) { | |
40292fb0 FR |
432 | if (!(SIS_R32(ROMInterface) & EEREQ)) { |
433 | data = (SIS_R32(ROMInterface) & 0xffff0000) >> 16; | |
890e8d0a | 434 | break; |
40292fb0 | 435 | } |
890e8d0a FR |
436 | msleep(1); |
437 | } | |
438 | ||
890e8d0a FR |
439 | return data; |
440 | } | |
441 | ||
442 | static void sis190_irq_mask_and_ack(void __iomem *ioaddr) | |
443 | { | |
444 | SIS_W32(IntrMask, 0x00); | |
445 | SIS_W32(IntrStatus, 0xffffffff); | |
446 | SIS_PCI_COMMIT(); | |
447 | } | |
448 | ||
449 | static void sis190_asic_down(void __iomem *ioaddr) | |
450 | { | |
451 | /* Stop the chip's Tx and Rx DMA processes. */ | |
452 | ||
453 | SIS_W32(TxControl, 0x1a00); | |
454 | SIS_W32(RxControl, 0x1a00); | |
455 | ||
456 | sis190_irq_mask_and_ack(ioaddr); | |
457 | } | |
458 | ||
459 | static void sis190_mark_as_last_descriptor(struct RxDesc *desc) | |
460 | { | |
461 | desc->size |= cpu_to_le32(RingEnd); | |
462 | } | |
463 | ||
464 | static inline void sis190_give_to_asic(struct RxDesc *desc, u32 rx_buf_sz) | |
465 | { | |
466 | u32 eor = le32_to_cpu(desc->size) & RingEnd; | |
467 | ||
468 | desc->PSize = 0x0; | |
8b5641d4 | 469 | desc->size = cpu_to_le32((rx_buf_sz & RX_BUF_MASK) | eor); |
890e8d0a FR |
470 | wmb(); |
471 | desc->status = cpu_to_le32(OWNbit | INTbit); | |
472 | } | |
473 | ||
474 | static inline void sis190_map_to_asic(struct RxDesc *desc, dma_addr_t mapping, | |
475 | u32 rx_buf_sz) | |
476 | { | |
477 | desc->addr = cpu_to_le32(mapping); | |
478 | sis190_give_to_asic(desc, rx_buf_sz); | |
479 | } | |
480 | ||
481 | static inline void sis190_make_unusable_by_asic(struct RxDesc *desc) | |
482 | { | |
483 | desc->PSize = 0x0; | |
961994a0 | 484 | desc->addr = cpu_to_le32(0xdeadbeef); |
890e8d0a FR |
485 | desc->size &= cpu_to_le32(RingEnd); |
486 | wmb(); | |
487 | desc->status = 0x0; | |
488 | } | |
489 | ||
35aeb780 SH |
490 | static struct sk_buff *sis190_alloc_rx_skb(struct sis190_private *tp, |
491 | struct RxDesc *desc) | |
890e8d0a | 492 | { |
35aeb780 | 493 | u32 rx_buf_sz = tp->rx_buf_sz; |
890e8d0a | 494 | struct sk_buff *skb; |
890e8d0a | 495 | |
35aeb780 | 496 | skb = netdev_alloc_skb(tp->dev, rx_buf_sz); |
4709aa59 SH |
497 | if (likely(skb)) { |
498 | dma_addr_t mapping; | |
890e8d0a | 499 | |
35aeb780 | 500 | mapping = pci_map_single(tp->pci_dev, skb->data, tp->rx_buf_sz, |
4709aa59 SH |
501 | PCI_DMA_FROMDEVICE); |
502 | sis190_map_to_asic(desc, mapping, rx_buf_sz); | |
503 | } else | |
504 | sis190_make_unusable_by_asic(desc); | |
890e8d0a | 505 | |
4709aa59 | 506 | return skb; |
890e8d0a FR |
507 | } |
508 | ||
509 | static u32 sis190_rx_fill(struct sis190_private *tp, struct net_device *dev, | |
510 | u32 start, u32 end) | |
511 | { | |
512 | u32 cur; | |
513 | ||
514 | for (cur = start; cur < end; cur++) { | |
4709aa59 | 515 | unsigned int i = cur % NUM_RX_DESC; |
890e8d0a FR |
516 | |
517 | if (tp->Rx_skbuff[i]) | |
518 | continue; | |
519 | ||
35aeb780 SH |
520 | tp->Rx_skbuff[i] = sis190_alloc_rx_skb(tp, tp->RxDescRing + i); |
521 | ||
4709aa59 | 522 | if (!tp->Rx_skbuff[i]) |
890e8d0a FR |
523 | break; |
524 | } | |
525 | return cur - start; | |
526 | } | |
527 | ||
47e47815 FR |
528 | static bool sis190_try_rx_copy(struct sis190_private *tp, |
529 | struct sk_buff **sk_buff, int pkt_size, | |
530 | dma_addr_t addr) | |
890e8d0a | 531 | { |
47e47815 FR |
532 | struct sk_buff *skb; |
533 | bool done = false; | |
534 | ||
535 | if (pkt_size >= rx_copybreak) | |
536 | goto out; | |
537 | ||
538 | skb = netdev_alloc_skb(tp->dev, pkt_size + 2); | |
539 | if (!skb) | |
540 | goto out; | |
541 | ||
542 | pci_dma_sync_single_for_device(tp->pci_dev, addr, pkt_size, | |
543 | PCI_DMA_FROMDEVICE); | |
544 | skb_reserve(skb, 2); | |
545 | skb_copy_to_linear_data(skb, sk_buff[0]->data, pkt_size); | |
546 | *sk_buff = skb; | |
547 | done = true; | |
548 | out: | |
549 | return done; | |
890e8d0a FR |
550 | } |
551 | ||
bcad5e53 FR |
552 | static inline int sis190_rx_pkt_err(u32 status, struct net_device_stats *stats) |
553 | { | |
554 | #define ErrMask (OVRUN | SHORT | LIMIT | MIIER | NIBON | COLON | ABORT) | |
555 | ||
556 | if ((status & CRCOK) && !(status & ErrMask)) | |
557 | return 0; | |
558 | ||
559 | if (!(status & CRCOK)) | |
560 | stats->rx_crc_errors++; | |
561 | else if (status & OVRUN) | |
562 | stats->rx_over_errors++; | |
563 | else if (status & (SHORT | LIMIT)) | |
564 | stats->rx_length_errors++; | |
565 | else if (status & (MIIER | NIBON | COLON)) | |
566 | stats->rx_frame_errors++; | |
567 | ||
568 | stats->rx_errors++; | |
569 | return -1; | |
570 | } | |
571 | ||
890e8d0a FR |
572 | static int sis190_rx_interrupt(struct net_device *dev, |
573 | struct sis190_private *tp, void __iomem *ioaddr) | |
574 | { | |
09f75cd7 | 575 | struct net_device_stats *stats = &dev->stats; |
890e8d0a FR |
576 | u32 rx_left, cur_rx = tp->cur_rx; |
577 | u32 delta, count; | |
578 | ||
579 | rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx; | |
580 | rx_left = sis190_rx_quota(rx_left, (u32) dev->quota); | |
581 | ||
582 | for (; rx_left > 0; rx_left--, cur_rx++) { | |
583 | unsigned int entry = cur_rx % NUM_RX_DESC; | |
584 | struct RxDesc *desc = tp->RxDescRing + entry; | |
585 | u32 status; | |
586 | ||
961994a0 | 587 | if (le32_to_cpu(desc->status) & OWNbit) |
890e8d0a FR |
588 | break; |
589 | ||
590 | status = le32_to_cpu(desc->PSize); | |
591 | ||
592 | // net_intr(tp, KERN_INFO "%s: Rx PSize = %08x.\n", dev->name, | |
593 | // status); | |
594 | ||
bcad5e53 | 595 | if (sis190_rx_pkt_err(status, stats) < 0) |
890e8d0a | 596 | sis190_give_to_asic(desc, tp->rx_buf_sz); |
bcad5e53 | 597 | else { |
890e8d0a | 598 | struct sk_buff *skb = tp->Rx_skbuff[entry]; |
47e47815 | 599 | dma_addr_t addr = le32_to_cpu(desc->addr); |
890e8d0a | 600 | int pkt_size = (status & RxSizeMask) - 4; |
47e47815 | 601 | struct pci_dev *pdev = tp->pci_dev; |
890e8d0a FR |
602 | |
603 | if (unlikely(pkt_size > tp->rx_buf_sz)) { | |
604 | net_intr(tp, KERN_INFO | |
605 | "%s: (frag) status = %08x.\n", | |
606 | dev->name, status); | |
607 | stats->rx_dropped++; | |
608 | stats->rx_length_errors++; | |
609 | sis190_give_to_asic(desc, tp->rx_buf_sz); | |
610 | continue; | |
611 | } | |
612 | ||
890e8d0a | 613 | |
47e47815 FR |
614 | if (sis190_try_rx_copy(tp, &skb, pkt_size, addr)) { |
615 | pci_dma_sync_single_for_device(pdev, addr, | |
616 | tp->rx_buf_sz, PCI_DMA_FROMDEVICE); | |
617 | sis190_give_to_asic(desc, tp->rx_buf_sz); | |
618 | } else { | |
619 | pci_unmap_single(pdev, addr, tp->rx_buf_sz, | |
620 | PCI_DMA_FROMDEVICE); | |
890e8d0a FR |
621 | tp->Rx_skbuff[entry] = NULL; |
622 | sis190_make_unusable_by_asic(desc); | |
623 | } | |
624 | ||
890e8d0a FR |
625 | skb_put(skb, pkt_size); |
626 | skb->protocol = eth_type_trans(skb, dev); | |
627 | ||
628 | sis190_rx_skb(skb); | |
629 | ||
890e8d0a | 630 | stats->rx_packets++; |
bcad5e53 FR |
631 | stats->rx_bytes += pkt_size; |
632 | if ((status & BCAST) == MCAST) | |
633 | stats->multicast++; | |
890e8d0a FR |
634 | } |
635 | } | |
636 | count = cur_rx - tp->cur_rx; | |
637 | tp->cur_rx = cur_rx; | |
638 | ||
639 | delta = sis190_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx); | |
640 | if (!delta && count && netif_msg_intr(tp)) | |
641 | printk(KERN_INFO "%s: no Rx buffer allocated.\n", dev->name); | |
642 | tp->dirty_rx += delta; | |
643 | ||
644 | if (((tp->dirty_rx + NUM_RX_DESC) == tp->cur_rx) && netif_msg_intr(tp)) | |
645 | printk(KERN_EMERG "%s: Rx buffers exhausted.\n", dev->name); | |
646 | ||
647 | return count; | |
648 | } | |
649 | ||
650 | static void sis190_unmap_tx_skb(struct pci_dev *pdev, struct sk_buff *skb, | |
651 | struct TxDesc *desc) | |
652 | { | |
653 | unsigned int len; | |
654 | ||
655 | len = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len; | |
656 | ||
657 | pci_unmap_single(pdev, le32_to_cpu(desc->addr), len, PCI_DMA_TODEVICE); | |
658 | ||
659 | memset(desc, 0x00, sizeof(*desc)); | |
660 | } | |
661 | ||
697c2696 FR |
662 | static inline int sis190_tx_pkt_err(u32 status, struct net_device_stats *stats) |
663 | { | |
664 | #define TxErrMask (WND | TABRT | FIFO | LINK) | |
665 | ||
666 | if (!unlikely(status & TxErrMask)) | |
667 | return 0; | |
668 | ||
669 | if (status & WND) | |
670 | stats->tx_window_errors++; | |
671 | if (status & TABRT) | |
672 | stats->tx_aborted_errors++; | |
673 | if (status & FIFO) | |
674 | stats->tx_fifo_errors++; | |
675 | if (status & LINK) | |
676 | stats->tx_carrier_errors++; | |
677 | ||
678 | stats->tx_errors++; | |
679 | ||
680 | return -1; | |
681 | } | |
682 | ||
890e8d0a FR |
683 | static void sis190_tx_interrupt(struct net_device *dev, |
684 | struct sis190_private *tp, void __iomem *ioaddr) | |
685 | { | |
697c2696 | 686 | struct net_device_stats *stats = &dev->stats; |
890e8d0a FR |
687 | u32 pending, dirty_tx = tp->dirty_tx; |
688 | /* | |
689 | * It would not be needed if queueing was allowed to be enabled | |
690 | * again too early (hint: think preempt and unclocked smp systems). | |
691 | */ | |
692 | unsigned int queue_stopped; | |
693 | ||
694 | smp_rmb(); | |
695 | pending = tp->cur_tx - dirty_tx; | |
696 | queue_stopped = (pending == NUM_TX_DESC); | |
697 | ||
698 | for (; pending; pending--, dirty_tx++) { | |
699 | unsigned int entry = dirty_tx % NUM_TX_DESC; | |
700 | struct TxDesc *txd = tp->TxDescRing + entry; | |
697c2696 | 701 | u32 status = le32_to_cpu(txd->status); |
890e8d0a FR |
702 | struct sk_buff *skb; |
703 | ||
697c2696 | 704 | if (status & OWNbit) |
890e8d0a FR |
705 | break; |
706 | ||
707 | skb = tp->Tx_skbuff[entry]; | |
708 | ||
697c2696 FR |
709 | if (likely(sis190_tx_pkt_err(status, stats) == 0)) { |
710 | stats->tx_packets++; | |
711 | stats->tx_bytes += skb->len; | |
712 | stats->collisions += ((status & ColCountMask) - 1); | |
713 | } | |
890e8d0a FR |
714 | |
715 | sis190_unmap_tx_skb(tp->pci_dev, skb, txd); | |
716 | tp->Tx_skbuff[entry] = NULL; | |
717 | dev_kfree_skb_irq(skb); | |
718 | } | |
719 | ||
720 | if (tp->dirty_tx != dirty_tx) { | |
721 | tp->dirty_tx = dirty_tx; | |
722 | smp_wmb(); | |
723 | if (queue_stopped) | |
724 | netif_wake_queue(dev); | |
725 | } | |
726 | } | |
727 | ||
728 | /* | |
729 | * The interrupt handler does all of the Rx thread work and cleans up after | |
730 | * the Tx thread. | |
731 | */ | |
7d12e780 | 732 | static irqreturn_t sis190_interrupt(int irq, void *__dev) |
890e8d0a FR |
733 | { |
734 | struct net_device *dev = __dev; | |
735 | struct sis190_private *tp = netdev_priv(dev); | |
736 | void __iomem *ioaddr = tp->mmio_addr; | |
737 | unsigned int handled = 0; | |
738 | u32 status; | |
739 | ||
740 | status = SIS_R32(IntrStatus); | |
741 | ||
742 | if ((status == 0xffffffff) || !status) | |
743 | goto out; | |
744 | ||
745 | handled = 1; | |
746 | ||
747 | if (unlikely(!netif_running(dev))) { | |
748 | sis190_asic_down(ioaddr); | |
749 | goto out; | |
750 | } | |
751 | ||
752 | SIS_W32(IntrStatus, status); | |
753 | ||
754 | // net_intr(tp, KERN_INFO "%s: status = %08x.\n", dev->name, status); | |
755 | ||
756 | if (status & LinkChange) { | |
757 | net_intr(tp, KERN_INFO "%s: link change.\n", dev->name); | |
758 | schedule_work(&tp->phy_task); | |
759 | } | |
760 | ||
761 | if (status & RxQInt) | |
762 | sis190_rx_interrupt(dev, tp, ioaddr); | |
763 | ||
764 | if (status & TxQ0Int) | |
765 | sis190_tx_interrupt(dev, tp, ioaddr); | |
766 | out: | |
767 | return IRQ_RETVAL(handled); | |
768 | } | |
769 | ||
4405d3b5 FR |
770 | #ifdef CONFIG_NET_POLL_CONTROLLER |
771 | static void sis190_netpoll(struct net_device *dev) | |
772 | { | |
773 | struct sis190_private *tp = netdev_priv(dev); | |
774 | struct pci_dev *pdev = tp->pci_dev; | |
775 | ||
776 | disable_irq(pdev->irq); | |
7d12e780 | 777 | sis190_interrupt(pdev->irq, dev); |
4405d3b5 FR |
778 | enable_irq(pdev->irq); |
779 | } | |
780 | #endif | |
781 | ||
890e8d0a FR |
782 | static void sis190_free_rx_skb(struct sis190_private *tp, |
783 | struct sk_buff **sk_buff, struct RxDesc *desc) | |
784 | { | |
785 | struct pci_dev *pdev = tp->pci_dev; | |
786 | ||
787 | pci_unmap_single(pdev, le32_to_cpu(desc->addr), tp->rx_buf_sz, | |
788 | PCI_DMA_FROMDEVICE); | |
789 | dev_kfree_skb(*sk_buff); | |
790 | *sk_buff = NULL; | |
791 | sis190_make_unusable_by_asic(desc); | |
792 | } | |
793 | ||
794 | static void sis190_rx_clear(struct sis190_private *tp) | |
795 | { | |
796 | unsigned int i; | |
797 | ||
798 | for (i = 0; i < NUM_RX_DESC; i++) { | |
799 | if (!tp->Rx_skbuff[i]) | |
800 | continue; | |
801 | sis190_free_rx_skb(tp, tp->Rx_skbuff + i, tp->RxDescRing + i); | |
802 | } | |
803 | } | |
804 | ||
805 | static void sis190_init_ring_indexes(struct sis190_private *tp) | |
806 | { | |
807 | tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0; | |
808 | } | |
809 | ||
810 | static int sis190_init_ring(struct net_device *dev) | |
811 | { | |
812 | struct sis190_private *tp = netdev_priv(dev); | |
813 | ||
814 | sis190_init_ring_indexes(tp); | |
815 | ||
816 | memset(tp->Tx_skbuff, 0x0, NUM_TX_DESC * sizeof(struct sk_buff *)); | |
817 | memset(tp->Rx_skbuff, 0x0, NUM_RX_DESC * sizeof(struct sk_buff *)); | |
818 | ||
819 | if (sis190_rx_fill(tp, dev, 0, NUM_RX_DESC) != NUM_RX_DESC) | |
820 | goto err_rx_clear; | |
821 | ||
822 | sis190_mark_as_last_descriptor(tp->RxDescRing + NUM_RX_DESC - 1); | |
823 | ||
824 | return 0; | |
825 | ||
826 | err_rx_clear: | |
827 | sis190_rx_clear(tp); | |
828 | return -ENOMEM; | |
829 | } | |
830 | ||
831 | static void sis190_set_rx_mode(struct net_device *dev) | |
832 | { | |
833 | struct sis190_private *tp = netdev_priv(dev); | |
834 | void __iomem *ioaddr = tp->mmio_addr; | |
835 | unsigned long flags; | |
836 | u32 mc_filter[2]; /* Multicast hash filter */ | |
837 | u16 rx_mode; | |
838 | ||
839 | if (dev->flags & IFF_PROMISC) { | |
890e8d0a FR |
840 | rx_mode = |
841 | AcceptBroadcast | AcceptMulticast | AcceptMyPhys | | |
842 | AcceptAllPhys; | |
843 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
844 | } else if ((dev->mc_count > multicast_filter_limit) || | |
845 | (dev->flags & IFF_ALLMULTI)) { | |
846 | /* Too many to filter perfectly -- accept all multicasts. */ | |
847 | rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; | |
848 | mc_filter[1] = mc_filter[0] = 0xffffffff; | |
849 | } else { | |
850 | struct dev_mc_list *mclist; | |
851 | unsigned int i; | |
852 | ||
853 | rx_mode = AcceptBroadcast | AcceptMyPhys; | |
854 | mc_filter[1] = mc_filter[0] = 0; | |
855 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; | |
856 | i++, mclist = mclist->next) { | |
857 | int bit_nr = | |
8fee5f51 | 858 | ether_crc(ETH_ALEN, mclist->dmi_addr) & 0x3f; |
890e8d0a FR |
859 | mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); |
860 | rx_mode |= AcceptMulticast; | |
861 | } | |
862 | } | |
863 | ||
864 | spin_lock_irqsave(&tp->lock, flags); | |
865 | ||
866 | SIS_W16(RxMacControl, rx_mode | 0x2); | |
867 | SIS_W32(RxHashTable, mc_filter[0]); | |
868 | SIS_W32(RxHashTable + 4, mc_filter[1]); | |
869 | ||
870 | spin_unlock_irqrestore(&tp->lock, flags); | |
871 | } | |
872 | ||
873 | static void sis190_soft_reset(void __iomem *ioaddr) | |
874 | { | |
875 | SIS_W32(IntrControl, 0x8000); | |
876 | SIS_PCI_COMMIT(); | |
890e8d0a FR |
877 | SIS_W32(IntrControl, 0x0); |
878 | sis190_asic_down(ioaddr); | |
890e8d0a FR |
879 | } |
880 | ||
881 | static void sis190_hw_start(struct net_device *dev) | |
882 | { | |
883 | struct sis190_private *tp = netdev_priv(dev); | |
884 | void __iomem *ioaddr = tp->mmio_addr; | |
885 | ||
886 | sis190_soft_reset(ioaddr); | |
887 | ||
888 | SIS_W32(TxDescStartAddr, tp->tx_dma); | |
889 | SIS_W32(RxDescStartAddr, tp->rx_dma); | |
890 | ||
891 | SIS_W32(IntrStatus, 0xffffffff); | |
892 | SIS_W32(IntrMask, 0x0); | |
890e8d0a FR |
893 | SIS_W32(GMIIControl, 0x0); |
894 | SIS_W32(TxMacControl, 0x60); | |
895 | SIS_W16(RxMacControl, 0x02); | |
896 | SIS_W32(RxHashTable, 0x0); | |
897 | SIS_W32(0x6c, 0x0); | |
188f23ba FR |
898 | SIS_W32(RxWolCtrl, 0x0); |
899 | SIS_W32(RxWolData, 0x0); | |
890e8d0a FR |
900 | |
901 | SIS_PCI_COMMIT(); | |
902 | ||
903 | sis190_set_rx_mode(dev); | |
904 | ||
905 | /* Enable all known interrupts by setting the interrupt mask. */ | |
906 | SIS_W32(IntrMask, sis190_intr_mask); | |
907 | ||
908 | SIS_W32(TxControl, 0x1a00 | CmdTxEnb); | |
909 | SIS_W32(RxControl, 0x1a1d); | |
910 | ||
911 | netif_start_queue(dev); | |
912 | } | |
913 | ||
c4028958 | 914 | static void sis190_phy_task(struct work_struct *work) |
890e8d0a | 915 | { |
c4028958 DH |
916 | struct sis190_private *tp = |
917 | container_of(work, struct sis190_private, phy_task); | |
918 | struct net_device *dev = tp->dev; | |
890e8d0a | 919 | void __iomem *ioaddr = tp->mmio_addr; |
9ede109b | 920 | int phy_id = tp->mii_if.phy_id; |
890e8d0a FR |
921 | u16 val; |
922 | ||
43afb949 FR |
923 | rtnl_lock(); |
924 | ||
c014f6c8 FR |
925 | if (!netif_running(dev)) |
926 | goto out_unlock; | |
927 | ||
9ede109b | 928 | val = mdio_read(ioaddr, phy_id, MII_BMCR); |
890e8d0a FR |
929 | if (val & BMCR_RESET) { |
930 | // FIXME: needlessly high ? -- FR 02/07/2005 | |
931 | mod_timer(&tp->timer, jiffies + HZ/10); | |
fc10c39d FR |
932 | } else if (!(mdio_read_latched(ioaddr, phy_id, MII_BMSR) & |
933 | BMSR_ANEGCOMPLETE)) { | |
21461380 | 934 | netif_carrier_off(dev); |
c34ebbae FR |
935 | net_link(tp, KERN_WARNING "%s: auto-negotiating...\n", |
936 | dev->name); | |
890e8d0a FR |
937 | mod_timer(&tp->timer, jiffies + SIS190_PHY_TIMEOUT); |
938 | } else { | |
939 | /* Rejoice ! */ | |
940 | struct { | |
941 | int val; | |
6614a6dc | 942 | u32 ctl; |
890e8d0a | 943 | const char *msg; |
890e8d0a | 944 | } reg31[] = { |
6614a6dc FR |
945 | { LPA_1000XFULL | LPA_SLCT, 0x07000c00 | 0x00001000, |
946 | "1000 Mbps Full Duplex" }, | |
947 | { LPA_1000XHALF | LPA_SLCT, 0x07000c00, | |
948 | "1000 Mbps Half Duplex" }, | |
949 | { LPA_100FULL, 0x04000800 | 0x00001000, | |
950 | "100 Mbps Full Duplex" }, | |
951 | { LPA_100HALF, 0x04000800, | |
952 | "100 Mbps Half Duplex" }, | |
953 | { LPA_10FULL, 0x04000400 | 0x00001000, | |
954 | "10 Mbps Full Duplex" }, | |
955 | { LPA_10HALF, 0x04000400, | |
956 | "10 Mbps Half Duplex" }, | |
957 | { 0, 0x04000400, "unknown" } | |
958 | }, *p; | |
8348b4db | 959 | u16 adv; |
890e8d0a | 960 | |
9ede109b | 961 | val = mdio_read(ioaddr, phy_id, 0x1f); |
890e8d0a FR |
962 | net_link(tp, KERN_INFO "%s: mii ext = %04x.\n", dev->name, val); |
963 | ||
9ede109b | 964 | val = mdio_read(ioaddr, phy_id, MII_LPA); |
8348b4db FR |
965 | adv = mdio_read(ioaddr, phy_id, MII_ADVERTISE); |
966 | net_link(tp, KERN_INFO "%s: mii lpa = %04x adv = %04x.\n", | |
967 | dev->name, val, adv); | |
968 | ||
969 | val &= adv; | |
890e8d0a | 970 | |
6614a6dc | 971 | for (p = reg31; p->val; p++) { |
890e8d0a FR |
972 | if ((val & p->val) == p->val) |
973 | break; | |
974 | } | |
6614a6dc FR |
975 | |
976 | p->ctl |= SIS_R32(StationControl) & ~0x0f001c00; | |
977 | ||
c3d6f1f2 FR |
978 | if ((tp->features & F_HAS_RGMII) && |
979 | (tp->features & F_PHY_BCM5461)) { | |
980 | // Set Tx Delay in RGMII mode. | |
981 | mdio_write(ioaddr, phy_id, 0x18, 0xf1c7); | |
982 | udelay(200); | |
983 | mdio_write(ioaddr, phy_id, 0x1c, 0x8c00); | |
984 | p->ctl |= 0x03000000; | |
985 | } | |
986 | ||
6614a6dc FR |
987 | SIS_W32(StationControl, p->ctl); |
988 | ||
c3d6f1f2 FR |
989 | if (tp->features & F_HAS_RGMII) { |
990 | SIS_W32(RGDelay, 0x0441); | |
991 | SIS_W32(RGDelay, 0x0440); | |
992 | } | |
993 | ||
890e8d0a FR |
994 | net_link(tp, KERN_INFO "%s: link on %s mode.\n", dev->name, |
995 | p->msg); | |
996 | netif_carrier_on(dev); | |
997 | } | |
43afb949 | 998 | |
c014f6c8 | 999 | out_unlock: |
43afb949 | 1000 | rtnl_unlock(); |
890e8d0a FR |
1001 | } |
1002 | ||
1003 | static void sis190_phy_timer(unsigned long __opaque) | |
1004 | { | |
1005 | struct net_device *dev = (struct net_device *)__opaque; | |
1006 | struct sis190_private *tp = netdev_priv(dev); | |
1007 | ||
1008 | if (likely(netif_running(dev))) | |
1009 | schedule_work(&tp->phy_task); | |
1010 | } | |
1011 | ||
1012 | static inline void sis190_delete_timer(struct net_device *dev) | |
1013 | { | |
1014 | struct sis190_private *tp = netdev_priv(dev); | |
1015 | ||
1016 | del_timer_sync(&tp->timer); | |
1017 | } | |
1018 | ||
1019 | static inline void sis190_request_timer(struct net_device *dev) | |
1020 | { | |
1021 | struct sis190_private *tp = netdev_priv(dev); | |
1022 | struct timer_list *timer = &tp->timer; | |
1023 | ||
1024 | init_timer(timer); | |
1025 | timer->expires = jiffies + SIS190_PHY_TIMEOUT; | |
1026 | timer->data = (unsigned long)dev; | |
1027 | timer->function = sis190_phy_timer; | |
1028 | add_timer(timer); | |
1029 | } | |
1030 | ||
1031 | static void sis190_set_rxbufsize(struct sis190_private *tp, | |
1032 | struct net_device *dev) | |
1033 | { | |
1034 | unsigned int mtu = dev->mtu; | |
1035 | ||
1036 | tp->rx_buf_sz = (mtu > RX_BUF_SIZE) ? mtu + ETH_HLEN + 8 : RX_BUF_SIZE; | |
8b5641d4 FR |
1037 | /* RxDesc->size has a licence to kill the lower bits */ |
1038 | if (tp->rx_buf_sz & 0x07) { | |
1039 | tp->rx_buf_sz += 8; | |
1040 | tp->rx_buf_sz &= RX_BUF_MASK; | |
1041 | } | |
890e8d0a FR |
1042 | } |
1043 | ||
1044 | static int sis190_open(struct net_device *dev) | |
1045 | { | |
1046 | struct sis190_private *tp = netdev_priv(dev); | |
1047 | struct pci_dev *pdev = tp->pci_dev; | |
1048 | int rc = -ENOMEM; | |
1049 | ||
1050 | sis190_set_rxbufsize(tp, dev); | |
1051 | ||
1052 | /* | |
1053 | * Rx and Tx descriptors need 256 bytes alignment. | |
1054 | * pci_alloc_consistent() guarantees a stronger alignment. | |
1055 | */ | |
1056 | tp->TxDescRing = pci_alloc_consistent(pdev, TX_RING_BYTES, &tp->tx_dma); | |
1057 | if (!tp->TxDescRing) | |
1058 | goto out; | |
1059 | ||
1060 | tp->RxDescRing = pci_alloc_consistent(pdev, RX_RING_BYTES, &tp->rx_dma); | |
1061 | if (!tp->RxDescRing) | |
1062 | goto err_free_tx_0; | |
1063 | ||
1064 | rc = sis190_init_ring(dev); | |
1065 | if (rc < 0) | |
1066 | goto err_free_rx_1; | |
1067 | ||
890e8d0a FR |
1068 | sis190_request_timer(dev); |
1069 | ||
1fb9df5d | 1070 | rc = request_irq(dev->irq, sis190_interrupt, IRQF_SHARED, dev->name, dev); |
890e8d0a FR |
1071 | if (rc < 0) |
1072 | goto err_release_timer_2; | |
1073 | ||
1074 | sis190_hw_start(dev); | |
1075 | out: | |
1076 | return rc; | |
1077 | ||
1078 | err_release_timer_2: | |
1079 | sis190_delete_timer(dev); | |
1080 | sis190_rx_clear(tp); | |
1081 | err_free_rx_1: | |
1082 | pci_free_consistent(tp->pci_dev, RX_RING_BYTES, tp->RxDescRing, | |
1083 | tp->rx_dma); | |
1084 | err_free_tx_0: | |
1085 | pci_free_consistent(tp->pci_dev, TX_RING_BYTES, tp->TxDescRing, | |
1086 | tp->tx_dma); | |
1087 | goto out; | |
1088 | } | |
1089 | ||
1090 | static void sis190_tx_clear(struct sis190_private *tp) | |
1091 | { | |
1092 | unsigned int i; | |
1093 | ||
1094 | for (i = 0; i < NUM_TX_DESC; i++) { | |
1095 | struct sk_buff *skb = tp->Tx_skbuff[i]; | |
1096 | ||
1097 | if (!skb) | |
1098 | continue; | |
1099 | ||
1100 | sis190_unmap_tx_skb(tp->pci_dev, skb, tp->TxDescRing + i); | |
1101 | tp->Tx_skbuff[i] = NULL; | |
1102 | dev_kfree_skb(skb); | |
1103 | ||
09f75cd7 | 1104 | tp->dev->stats.tx_dropped++; |
890e8d0a FR |
1105 | } |
1106 | tp->cur_tx = tp->dirty_tx = 0; | |
1107 | } | |
1108 | ||
1109 | static void sis190_down(struct net_device *dev) | |
1110 | { | |
1111 | struct sis190_private *tp = netdev_priv(dev); | |
1112 | void __iomem *ioaddr = tp->mmio_addr; | |
1113 | unsigned int poll_locked = 0; | |
1114 | ||
1115 | sis190_delete_timer(dev); | |
1116 | ||
1117 | netif_stop_queue(dev); | |
1118 | ||
890e8d0a FR |
1119 | do { |
1120 | spin_lock_irq(&tp->lock); | |
1121 | ||
1122 | sis190_asic_down(ioaddr); | |
1123 | ||
1124 | spin_unlock_irq(&tp->lock); | |
1125 | ||
1126 | synchronize_irq(dev->irq); | |
1127 | ||
bea3348e | 1128 | if (!poll_locked) |
890e8d0a | 1129 | poll_locked++; |
890e8d0a FR |
1130 | |
1131 | synchronize_sched(); | |
1132 | ||
1133 | } while (SIS_R32(IntrMask)); | |
1134 | ||
1135 | sis190_tx_clear(tp); | |
1136 | sis190_rx_clear(tp); | |
1137 | } | |
1138 | ||
1139 | static int sis190_close(struct net_device *dev) | |
1140 | { | |
1141 | struct sis190_private *tp = netdev_priv(dev); | |
1142 | struct pci_dev *pdev = tp->pci_dev; | |
1143 | ||
1144 | sis190_down(dev); | |
1145 | ||
1146 | free_irq(dev->irq, dev); | |
1147 | ||
890e8d0a FR |
1148 | pci_free_consistent(pdev, TX_RING_BYTES, tp->TxDescRing, tp->tx_dma); |
1149 | pci_free_consistent(pdev, RX_RING_BYTES, tp->RxDescRing, tp->rx_dma); | |
1150 | ||
1151 | tp->TxDescRing = NULL; | |
1152 | tp->RxDescRing = NULL; | |
1153 | ||
1154 | return 0; | |
1155 | } | |
1156 | ||
1157 | static int sis190_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
1158 | { | |
1159 | struct sis190_private *tp = netdev_priv(dev); | |
1160 | void __iomem *ioaddr = tp->mmio_addr; | |
1161 | u32 len, entry, dirty_tx; | |
1162 | struct TxDesc *desc; | |
1163 | dma_addr_t mapping; | |
1164 | ||
1165 | if (unlikely(skb->len < ETH_ZLEN)) { | |
5b057c6b | 1166 | if (skb_padto(skb, ETH_ZLEN)) { |
09f75cd7 | 1167 | dev->stats.tx_dropped++; |
890e8d0a FR |
1168 | goto out; |
1169 | } | |
1170 | len = ETH_ZLEN; | |
1171 | } else { | |
1172 | len = skb->len; | |
1173 | } | |
1174 | ||
1175 | entry = tp->cur_tx % NUM_TX_DESC; | |
1176 | desc = tp->TxDescRing + entry; | |
1177 | ||
1178 | if (unlikely(le32_to_cpu(desc->status) & OWNbit)) { | |
1179 | netif_stop_queue(dev); | |
1180 | net_tx_err(tp, KERN_ERR PFX | |
1181 | "%s: BUG! Tx Ring full when queue awake!\n", | |
1182 | dev->name); | |
1183 | return NETDEV_TX_BUSY; | |
1184 | } | |
1185 | ||
1186 | mapping = pci_map_single(tp->pci_dev, skb->data, len, PCI_DMA_TODEVICE); | |
1187 | ||
1188 | tp->Tx_skbuff[entry] = skb; | |
1189 | ||
1190 | desc->PSize = cpu_to_le32(len); | |
1191 | desc->addr = cpu_to_le32(mapping); | |
1192 | ||
1193 | desc->size = cpu_to_le32(len); | |
1194 | if (entry == (NUM_TX_DESC - 1)) | |
1195 | desc->size |= cpu_to_le32(RingEnd); | |
1196 | ||
1197 | wmb(); | |
1198 | ||
1199 | desc->status = cpu_to_le32(OWNbit | INTbit | DEFbit | CRCbit | PADbit); | |
1200 | ||
1201 | tp->cur_tx++; | |
1202 | ||
1203 | smp_wmb(); | |
1204 | ||
1205 | SIS_W32(TxControl, 0x1a00 | CmdReset | CmdTxEnb); | |
1206 | ||
890e8d0a FR |
1207 | dirty_tx = tp->dirty_tx; |
1208 | if ((tp->cur_tx - NUM_TX_DESC) == dirty_tx) { | |
1209 | netif_stop_queue(dev); | |
1210 | smp_rmb(); | |
1211 | if (dirty_tx != tp->dirty_tx) | |
1212 | netif_wake_queue(dev); | |
1213 | } | |
1214 | out: | |
1215 | return NETDEV_TX_OK; | |
1216 | } | |
1217 | ||
fcb9821d FR |
1218 | static void sis190_free_phy(struct list_head *first_phy) |
1219 | { | |
1220 | struct sis190_phy *cur, *next; | |
1221 | ||
1222 | list_for_each_entry_safe(cur, next, first_phy, list) { | |
1223 | kfree(cur); | |
1224 | } | |
1225 | } | |
1226 | ||
1227 | /** | |
1228 | * sis190_default_phy - Select default PHY for sis190 mac. | |
1229 | * @dev: the net device to probe for | |
1230 | * | |
1231 | * Select first detected PHY with link as default. | |
1232 | * If no one is link on, select PHY whose types is HOME as default. | |
1233 | * If HOME doesn't exist, select LAN. | |
1234 | */ | |
1235 | static u16 sis190_default_phy(struct net_device *dev) | |
1236 | { | |
1237 | struct sis190_phy *phy, *phy_home, *phy_default, *phy_lan; | |
1238 | struct sis190_private *tp = netdev_priv(dev); | |
1239 | struct mii_if_info *mii_if = &tp->mii_if; | |
1240 | void __iomem *ioaddr = tp->mmio_addr; | |
1241 | u16 status; | |
1242 | ||
1243 | phy_home = phy_default = phy_lan = NULL; | |
1244 | ||
1245 | list_for_each_entry(phy, &tp->first_phy, list) { | |
1246 | status = mdio_read_latched(ioaddr, phy->phy_id, MII_BMSR); | |
1247 | ||
1248 | // Link ON & Not select default PHY & not ghost PHY. | |
1249 | if ((status & BMSR_LSTATUS) && | |
1250 | !phy_default && | |
1251 | (phy->type != UNKNOWN)) { | |
1252 | phy_default = phy; | |
1253 | } else { | |
1254 | status = mdio_read(ioaddr, phy->phy_id, MII_BMCR); | |
1255 | mdio_write(ioaddr, phy->phy_id, MII_BMCR, | |
1256 | status | BMCR_ANENABLE | BMCR_ISOLATE); | |
1257 | if (phy->type == HOME) | |
1258 | phy_home = phy; | |
1259 | else if (phy->type == LAN) | |
1260 | phy_lan = phy; | |
1261 | } | |
1262 | } | |
1263 | ||
1264 | if (!phy_default) { | |
1265 | if (phy_home) | |
1266 | phy_default = phy_home; | |
1267 | else if (phy_lan) | |
1268 | phy_default = phy_lan; | |
1269 | else | |
1270 | phy_default = list_entry(&tp->first_phy, | |
1271 | struct sis190_phy, list); | |
1272 | } | |
1273 | ||
1274 | if (mii_if->phy_id != phy_default->phy_id) { | |
1275 | mii_if->phy_id = phy_default->phy_id; | |
1276 | net_probe(tp, KERN_INFO | |
1277 | "%s: Using transceiver at address %d as default.\n", | |
3690b6c1 | 1278 | pci_name(tp->pci_dev), mii_if->phy_id); |
fcb9821d FR |
1279 | } |
1280 | ||
1281 | status = mdio_read(ioaddr, mii_if->phy_id, MII_BMCR); | |
1282 | status &= (~BMCR_ISOLATE); | |
1283 | ||
1284 | mdio_write(ioaddr, mii_if->phy_id, MII_BMCR, status); | |
1285 | status = mdio_read_latched(ioaddr, mii_if->phy_id, MII_BMSR); | |
1286 | ||
1287 | return status; | |
1288 | } | |
1289 | ||
1290 | static void sis190_init_phy(struct net_device *dev, struct sis190_private *tp, | |
1291 | struct sis190_phy *phy, unsigned int phy_id, | |
1292 | u16 mii_status) | |
1293 | { | |
1294 | void __iomem *ioaddr = tp->mmio_addr; | |
1295 | struct mii_chip_info *p; | |
1296 | ||
1297 | INIT_LIST_HEAD(&phy->list); | |
1298 | phy->status = mii_status; | |
1299 | phy->phy_id = phy_id; | |
1300 | ||
1301 | phy->id[0] = mdio_read(ioaddr, phy_id, MII_PHYSID1); | |
1302 | phy->id[1] = mdio_read(ioaddr, phy_id, MII_PHYSID2); | |
1303 | ||
1304 | for (p = mii_chip_table; p->type; p++) { | |
1305 | if ((p->id[0] == phy->id[0]) && | |
1306 | (p->id[1] == (phy->id[1] & 0xfff0))) { | |
1307 | break; | |
1308 | } | |
1309 | } | |
1310 | ||
1311 | if (p->id[1]) { | |
1312 | phy->type = (p->type == MIX) ? | |
1313 | ((mii_status & (BMSR_100FULL | BMSR_100HALF)) ? | |
1314 | LAN : HOME) : p->type; | |
900eb9d6 | 1315 | tp->features |= p->feature; |
fcb9821d FR |
1316 | } else |
1317 | phy->type = UNKNOWN; | |
1318 | ||
1319 | net_probe(tp, KERN_INFO "%s: %s transceiver at address %d.\n", | |
3690b6c1 FR |
1320 | pci_name(tp->pci_dev), |
1321 | (phy->type == UNKNOWN) ? "Unknown PHY" : p->name, phy_id); | |
fcb9821d FR |
1322 | } |
1323 | ||
900eb9d6 FR |
1324 | static void sis190_mii_probe_88e1111_fixup(struct sis190_private *tp) |
1325 | { | |
1326 | if (tp->features & F_PHY_88E1111) { | |
1327 | void __iomem *ioaddr = tp->mmio_addr; | |
1328 | int phy_id = tp->mii_if.phy_id; | |
1329 | u16 reg[2][2] = { | |
1330 | { 0x808b, 0x0ce1 }, | |
1331 | { 0x808f, 0x0c60 } | |
1332 | }, *p; | |
1333 | ||
1334 | p = (tp->features & F_HAS_RGMII) ? reg[0] : reg[1]; | |
1335 | ||
1336 | mdio_write(ioaddr, phy_id, 0x1b, p[0]); | |
1337 | udelay(200); | |
1338 | mdio_write(ioaddr, phy_id, 0x14, p[1]); | |
1339 | udelay(200); | |
1340 | } | |
1341 | } | |
1342 | ||
fcb9821d FR |
1343 | /** |
1344 | * sis190_mii_probe - Probe MII PHY for sis190 | |
1345 | * @dev: the net device to probe for | |
1346 | * | |
1347 | * Search for total of 32 possible mii phy addresses. | |
1348 | * Identify and set current phy if found one, | |
1349 | * return error if it failed to found. | |
1350 | */ | |
1351 | static int __devinit sis190_mii_probe(struct net_device *dev) | |
1352 | { | |
1353 | struct sis190_private *tp = netdev_priv(dev); | |
1354 | struct mii_if_info *mii_if = &tp->mii_if; | |
1355 | void __iomem *ioaddr = tp->mmio_addr; | |
1356 | int phy_id; | |
1357 | int rc = 0; | |
1358 | ||
1359 | INIT_LIST_HEAD(&tp->first_phy); | |
1360 | ||
1361 | for (phy_id = 0; phy_id < PHY_MAX_ADDR; phy_id++) { | |
1362 | struct sis190_phy *phy; | |
1363 | u16 status; | |
1364 | ||
1365 | status = mdio_read_latched(ioaddr, phy_id, MII_BMSR); | |
1366 | ||
1367 | // Try next mii if the current one is not accessible. | |
1368 | if (status == 0xffff || status == 0x0000) | |
1369 | continue; | |
1370 | ||
1371 | phy = kmalloc(sizeof(*phy), GFP_KERNEL); | |
1372 | if (!phy) { | |
1373 | sis190_free_phy(&tp->first_phy); | |
1374 | rc = -ENOMEM; | |
1375 | goto out; | |
1376 | } | |
1377 | ||
1378 | sis190_init_phy(dev, tp, phy, phy_id, status); | |
1379 | ||
1380 | list_add(&tp->first_phy, &phy->list); | |
1381 | } | |
1382 | ||
1383 | if (list_empty(&tp->first_phy)) { | |
1384 | net_probe(tp, KERN_INFO "%s: No MII transceivers found!\n", | |
3690b6c1 | 1385 | pci_name(tp->pci_dev)); |
fcb9821d FR |
1386 | rc = -EIO; |
1387 | goto out; | |
1388 | } | |
1389 | ||
1390 | /* Select default PHY for mac */ | |
1391 | sis190_default_phy(dev); | |
1392 | ||
900eb9d6 FR |
1393 | sis190_mii_probe_88e1111_fixup(tp); |
1394 | ||
fcb9821d FR |
1395 | mii_if->dev = dev; |
1396 | mii_if->mdio_read = __mdio_read; | |
1397 | mii_if->mdio_write = __mdio_write; | |
1398 | mii_if->phy_id_mask = PHY_ID_ANY; | |
1399 | mii_if->reg_num_mask = MII_REG_ANY; | |
1400 | out: | |
1401 | return rc; | |
1402 | } | |
1403 | ||
c2b75f0c | 1404 | static void sis190_mii_remove(struct net_device *dev) |
fcb9821d FR |
1405 | { |
1406 | struct sis190_private *tp = netdev_priv(dev); | |
1407 | ||
1408 | sis190_free_phy(&tp->first_phy); | |
1409 | } | |
1410 | ||
890e8d0a FR |
1411 | static void sis190_release_board(struct pci_dev *pdev) |
1412 | { | |
1413 | struct net_device *dev = pci_get_drvdata(pdev); | |
1414 | struct sis190_private *tp = netdev_priv(dev); | |
1415 | ||
1416 | iounmap(tp->mmio_addr); | |
1417 | pci_release_regions(pdev); | |
1418 | pci_disable_device(pdev); | |
1419 | free_netdev(dev); | |
1420 | } | |
1421 | ||
1422 | static struct net_device * __devinit sis190_init_board(struct pci_dev *pdev) | |
1423 | { | |
1424 | struct sis190_private *tp; | |
1425 | struct net_device *dev; | |
1426 | void __iomem *ioaddr; | |
1427 | int rc; | |
1428 | ||
1429 | dev = alloc_etherdev(sizeof(*tp)); | |
1430 | if (!dev) { | |
1431 | net_drv(&debug, KERN_ERR PFX "unable to alloc new ethernet\n"); | |
1432 | rc = -ENOMEM; | |
1433 | goto err_out_0; | |
1434 | } | |
1435 | ||
890e8d0a FR |
1436 | SET_NETDEV_DEV(dev, &pdev->dev); |
1437 | ||
1438 | tp = netdev_priv(dev); | |
c4028958 | 1439 | tp->dev = dev; |
890e8d0a FR |
1440 | tp->msg_enable = netif_msg_init(debug.msg_enable, SIS190_MSG_DEFAULT); |
1441 | ||
1442 | rc = pci_enable_device(pdev); | |
1443 | if (rc < 0) { | |
1444 | net_probe(tp, KERN_ERR "%s: enable failure\n", pci_name(pdev)); | |
1445 | goto err_free_dev_1; | |
1446 | } | |
1447 | ||
1448 | rc = -ENODEV; | |
1449 | ||
1450 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { | |
1451 | net_probe(tp, KERN_ERR "%s: region #0 is no MMIO resource.\n", | |
1452 | pci_name(pdev)); | |
1453 | goto err_pci_disable_2; | |
1454 | } | |
1455 | if (pci_resource_len(pdev, 0) < SIS190_REGS_SIZE) { | |
1456 | net_probe(tp, KERN_ERR "%s: invalid PCI region size(s).\n", | |
1457 | pci_name(pdev)); | |
1458 | goto err_pci_disable_2; | |
1459 | } | |
1460 | ||
1461 | rc = pci_request_regions(pdev, DRV_NAME); | |
1462 | if (rc < 0) { | |
1463 | net_probe(tp, KERN_ERR PFX "%s: could not request regions.\n", | |
1464 | pci_name(pdev)); | |
1465 | goto err_pci_disable_2; | |
1466 | } | |
1467 | ||
284901a9 | 1468 | rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
890e8d0a FR |
1469 | if (rc < 0) { |
1470 | net_probe(tp, KERN_ERR "%s: DMA configuration failed.\n", | |
1471 | pci_name(pdev)); | |
1472 | goto err_free_res_3; | |
1473 | } | |
1474 | ||
1475 | pci_set_master(pdev); | |
1476 | ||
1477 | ioaddr = ioremap(pci_resource_start(pdev, 0), SIS190_REGS_SIZE); | |
1478 | if (!ioaddr) { | |
1479 | net_probe(tp, KERN_ERR "%s: cannot remap MMIO, aborting\n", | |
1480 | pci_name(pdev)); | |
1481 | rc = -EIO; | |
1482 | goto err_free_res_3; | |
1483 | } | |
1484 | ||
1485 | tp->pci_dev = pdev; | |
1486 | tp->mmio_addr = ioaddr; | |
1487 | ||
1488 | sis190_irq_mask_and_ack(ioaddr); | |
1489 | ||
1490 | sis190_soft_reset(ioaddr); | |
1491 | out: | |
1492 | return dev; | |
1493 | ||
1494 | err_free_res_3: | |
1495 | pci_release_regions(pdev); | |
1496 | err_pci_disable_2: | |
1497 | pci_disable_device(pdev); | |
1498 | err_free_dev_1: | |
1499 | free_netdev(dev); | |
1500 | err_out_0: | |
1501 | dev = ERR_PTR(rc); | |
1502 | goto out; | |
1503 | } | |
1504 | ||
1505 | static void sis190_tx_timeout(struct net_device *dev) | |
1506 | { | |
1507 | struct sis190_private *tp = netdev_priv(dev); | |
1508 | void __iomem *ioaddr = tp->mmio_addr; | |
1509 | u8 tmp8; | |
1510 | ||
1511 | /* Disable Tx, if not already */ | |
1512 | tmp8 = SIS_R8(TxControl); | |
1513 | if (tmp8 & CmdTxEnb) | |
1514 | SIS_W8(TxControl, tmp8 & ~CmdTxEnb); | |
1515 | ||
188f23ba FR |
1516 | |
1517 | net_tx_err(tp, KERN_INFO "%s: Transmit timeout, status %08x %08x.\n", | |
1518 | dev->name, SIS_R32(TxControl), SIS_R32(TxSts)); | |
1519 | ||
890e8d0a FR |
1520 | /* Disable interrupts by clearing the interrupt mask. */ |
1521 | SIS_W32(IntrMask, 0x0000); | |
1522 | ||
1523 | /* Stop a shared interrupt from scavenging while we are. */ | |
1524 | spin_lock_irq(&tp->lock); | |
1525 | sis190_tx_clear(tp); | |
1526 | spin_unlock_irq(&tp->lock); | |
1527 | ||
1528 | /* ...and finally, reset everything. */ | |
1529 | sis190_hw_start(dev); | |
1530 | ||
1531 | netif_wake_queue(dev); | |
1532 | } | |
1533 | ||
900eb9d6 FR |
1534 | static void sis190_set_rgmii(struct sis190_private *tp, u8 reg) |
1535 | { | |
1536 | tp->features |= (reg & 0x80) ? F_HAS_RGMII : 0; | |
1537 | } | |
1538 | ||
830fb7d2 FR |
1539 | static int __devinit sis190_get_mac_addr_from_eeprom(struct pci_dev *pdev, |
1540 | struct net_device *dev) | |
1541 | { | |
1542 | struct sis190_private *tp = netdev_priv(dev); | |
1543 | void __iomem *ioaddr = tp->mmio_addr; | |
1544 | u16 sig; | |
1545 | int i; | |
1546 | ||
1547 | net_probe(tp, KERN_INFO "%s: Read MAC address from EEPROM\n", | |
1548 | pci_name(pdev)); | |
1549 | ||
1550 | /* Check to see if there is a sane EEPROM */ | |
1551 | sig = (u16) sis190_read_eeprom(ioaddr, EEPROMSignature); | |
1552 | ||
1553 | if ((sig == 0xffff) || (sig == 0x0000)) { | |
1554 | net_probe(tp, KERN_INFO "%s: Error EEPROM read %x.\n", | |
1555 | pci_name(pdev), sig); | |
1556 | return -EIO; | |
1557 | } | |
1558 | ||
1559 | /* Get MAC address from EEPROM */ | |
1560 | for (i = 0; i < MAC_ADDR_LEN / 2; i++) { | |
961994a0 | 1561 | u16 w = sis190_read_eeprom(ioaddr, EEPROMMACAddr + i); |
830fb7d2 | 1562 | |
961994a0 | 1563 | ((__le16 *)dev->dev_addr)[i] = cpu_to_le16(w); |
830fb7d2 FR |
1564 | } |
1565 | ||
900eb9d6 FR |
1566 | sis190_set_rgmii(tp, sis190_read_eeprom(ioaddr, EEPROMInfo)); |
1567 | ||
830fb7d2 FR |
1568 | return 0; |
1569 | } | |
1570 | ||
1571 | /** | |
ebc71647 | 1572 | * sis190_get_mac_addr_from_apc - Get MAC address for SiS96x model |
830fb7d2 FR |
1573 | * @pdev: PCI device |
1574 | * @dev: network device to get address for | |
1575 | * | |
ebc71647 | 1576 | * SiS96x model, use APC CMOS RAM to store MAC address. |
830fb7d2 FR |
1577 | * APC CMOS RAM is accessed through ISA bridge. |
1578 | * MAC address is read into @net_dev->dev_addr. | |
1579 | */ | |
1580 | static int __devinit sis190_get_mac_addr_from_apc(struct pci_dev *pdev, | |
1581 | struct net_device *dev) | |
1582 | { | |
ebc71647 | 1583 | static const u16 __devinitdata ids[] = { 0x0965, 0x0966, 0x0968 }; |
830fb7d2 FR |
1584 | struct sis190_private *tp = netdev_priv(dev); |
1585 | struct pci_dev *isa_bridge; | |
1586 | u8 reg, tmp8; | |
ebc71647 | 1587 | unsigned int i; |
830fb7d2 FR |
1588 | |
1589 | net_probe(tp, KERN_INFO "%s: Read MAC address from APC.\n", | |
1590 | pci_name(pdev)); | |
1591 | ||
ebc71647 FR |
1592 | for (i = 0; i < ARRAY_SIZE(ids); i++) { |
1593 | isa_bridge = pci_get_device(PCI_VENDOR_ID_SI, ids[i], NULL); | |
1594 | if (isa_bridge) | |
1595 | break; | |
1596 | } | |
8eb7ad68 | 1597 | |
830fb7d2 FR |
1598 | if (!isa_bridge) { |
1599 | net_probe(tp, KERN_INFO "%s: Can not find ISA bridge.\n", | |
1600 | pci_name(pdev)); | |
1601 | return -EIO; | |
1602 | } | |
1603 | ||
1604 | /* Enable port 78h & 79h to access APC Registers. */ | |
1605 | pci_read_config_byte(isa_bridge, 0x48, &tmp8); | |
1606 | reg = (tmp8 & ~0x02); | |
1607 | pci_write_config_byte(isa_bridge, 0x48, reg); | |
1608 | udelay(50); | |
1609 | pci_read_config_byte(isa_bridge, 0x48, ®); | |
1610 | ||
1611 | for (i = 0; i < MAC_ADDR_LEN; i++) { | |
1612 | outb(0x9 + i, 0x78); | |
1613 | dev->dev_addr[i] = inb(0x79); | |
1614 | } | |
1615 | ||
1616 | outb(0x12, 0x78); | |
1617 | reg = inb(0x79); | |
1618 | ||
900eb9d6 FR |
1619 | sis190_set_rgmii(tp, reg); |
1620 | ||
830fb7d2 FR |
1621 | /* Restore the value to ISA Bridge */ |
1622 | pci_write_config_byte(isa_bridge, 0x48, tmp8); | |
1623 | pci_dev_put(isa_bridge); | |
1624 | ||
1625 | return 0; | |
1626 | } | |
1627 | ||
1628 | /** | |
1629 | * sis190_init_rxfilter - Initialize the Rx filter | |
1630 | * @dev: network device to initialize | |
1631 | * | |
1632 | * Set receive filter address to our MAC address | |
1633 | * and enable packet filtering. | |
1634 | */ | |
1635 | static inline void sis190_init_rxfilter(struct net_device *dev) | |
1636 | { | |
1637 | struct sis190_private *tp = netdev_priv(dev); | |
1638 | void __iomem *ioaddr = tp->mmio_addr; | |
1639 | u16 ctl; | |
1640 | int i; | |
1641 | ||
1642 | ctl = SIS_R16(RxMacControl); | |
1643 | /* | |
1644 | * Disable packet filtering before setting filter. | |
1645 | * Note: SiS's driver writes 32 bits but RxMacControl is 16 bits | |
1646 | * only and followed by RxMacAddr (6 bytes). Strange. -- FR | |
1647 | */ | |
1648 | SIS_W16(RxMacControl, ctl & ~0x0f00); | |
1649 | ||
1650 | for (i = 0; i < MAC_ADDR_LEN; i++) | |
1651 | SIS_W8(RxMacAddr + i, dev->dev_addr[i]); | |
1652 | ||
1653 | SIS_W16(RxMacControl, ctl); | |
1654 | SIS_PCI_COMMIT(); | |
1655 | } | |
1656 | ||
7d2e3cb7 | 1657 | static int __devinit sis190_get_mac_addr(struct pci_dev *pdev, |
d785ad74 | 1658 | struct net_device *dev) |
830fb7d2 | 1659 | { |
563e0ae0 FR |
1660 | int rc; |
1661 | ||
1662 | rc = sis190_get_mac_addr_from_eeprom(pdev, dev); | |
1663 | if (rc < 0) { | |
1664 | u8 reg; | |
830fb7d2 | 1665 | |
563e0ae0 | 1666 | pci_read_config_byte(pdev, 0x73, ®); |
830fb7d2 | 1667 | |
563e0ae0 FR |
1668 | if (reg & 0x00000001) |
1669 | rc = sis190_get_mac_addr_from_apc(pdev, dev); | |
1670 | } | |
1671 | return rc; | |
830fb7d2 FR |
1672 | } |
1673 | ||
890e8d0a FR |
1674 | static void sis190_set_speed_auto(struct net_device *dev) |
1675 | { | |
1676 | struct sis190_private *tp = netdev_priv(dev); | |
1677 | void __iomem *ioaddr = tp->mmio_addr; | |
9ede109b | 1678 | int phy_id = tp->mii_if.phy_id; |
890e8d0a FR |
1679 | int val; |
1680 | ||
1681 | net_link(tp, KERN_INFO "%s: Enabling Auto-negotiation.\n", dev->name); | |
1682 | ||
9ede109b | 1683 | val = mdio_read(ioaddr, phy_id, MII_ADVERTISE); |
890e8d0a FR |
1684 | |
1685 | // Enable 10/100 Full/Half Mode, leave MII_ADVERTISE bit4:0 | |
1686 | // unchanged. | |
9ede109b | 1687 | mdio_write(ioaddr, phy_id, MII_ADVERTISE, (val & ADVERTISE_SLCT) | |
890e8d0a FR |
1688 | ADVERTISE_100FULL | ADVERTISE_10FULL | |
1689 | ADVERTISE_100HALF | ADVERTISE_10HALF); | |
1690 | ||
1691 | // Enable 1000 Full Mode. | |
9ede109b | 1692 | mdio_write(ioaddr, phy_id, MII_CTRL1000, ADVERTISE_1000FULL); |
890e8d0a FR |
1693 | |
1694 | // Enable auto-negotiation and restart auto-negotiation. | |
9ede109b | 1695 | mdio_write(ioaddr, phy_id, MII_BMCR, |
890e8d0a FR |
1696 | BMCR_ANENABLE | BMCR_ANRESTART | BMCR_RESET); |
1697 | } | |
1698 | ||
43afb949 FR |
1699 | static int sis190_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
1700 | { | |
1701 | struct sis190_private *tp = netdev_priv(dev); | |
1702 | ||
1703 | return mii_ethtool_gset(&tp->mii_if, cmd); | |
1704 | } | |
1705 | ||
1706 | static int sis190_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
1707 | { | |
1708 | struct sis190_private *tp = netdev_priv(dev); | |
1709 | ||
1710 | return mii_ethtool_sset(&tp->mii_if, cmd); | |
1711 | } | |
1712 | ||
890e8d0a FR |
1713 | static void sis190_get_drvinfo(struct net_device *dev, |
1714 | struct ethtool_drvinfo *info) | |
1715 | { | |
1716 | struct sis190_private *tp = netdev_priv(dev); | |
1717 | ||
1718 | strcpy(info->driver, DRV_NAME); | |
1719 | strcpy(info->version, DRV_VERSION); | |
1720 | strcpy(info->bus_info, pci_name(tp->pci_dev)); | |
1721 | } | |
1722 | ||
1723 | static int sis190_get_regs_len(struct net_device *dev) | |
1724 | { | |
1725 | return SIS190_REGS_SIZE; | |
1726 | } | |
1727 | ||
1728 | static void sis190_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
1729 | void *p) | |
1730 | { | |
1731 | struct sis190_private *tp = netdev_priv(dev); | |
1732 | unsigned long flags; | |
1733 | ||
1734 | if (regs->len > SIS190_REGS_SIZE) | |
1735 | regs->len = SIS190_REGS_SIZE; | |
1736 | ||
1737 | spin_lock_irqsave(&tp->lock, flags); | |
1738 | memcpy_fromio(p, tp->mmio_addr, regs->len); | |
1739 | spin_unlock_irqrestore(&tp->lock, flags); | |
1740 | } | |
1741 | ||
43afb949 FR |
1742 | static int sis190_nway_reset(struct net_device *dev) |
1743 | { | |
1744 | struct sis190_private *tp = netdev_priv(dev); | |
1745 | ||
1746 | return mii_nway_restart(&tp->mii_if); | |
1747 | } | |
1748 | ||
890e8d0a FR |
1749 | static u32 sis190_get_msglevel(struct net_device *dev) |
1750 | { | |
1751 | struct sis190_private *tp = netdev_priv(dev); | |
1752 | ||
1753 | return tp->msg_enable; | |
1754 | } | |
1755 | ||
1756 | static void sis190_set_msglevel(struct net_device *dev, u32 value) | |
1757 | { | |
1758 | struct sis190_private *tp = netdev_priv(dev); | |
1759 | ||
1760 | tp->msg_enable = value; | |
1761 | } | |
1762 | ||
7282d491 | 1763 | static const struct ethtool_ops sis190_ethtool_ops = { |
43afb949 FR |
1764 | .get_settings = sis190_get_settings, |
1765 | .set_settings = sis190_set_settings, | |
890e8d0a FR |
1766 | .get_drvinfo = sis190_get_drvinfo, |
1767 | .get_regs_len = sis190_get_regs_len, | |
1768 | .get_regs = sis190_get_regs, | |
1769 | .get_link = ethtool_op_get_link, | |
1770 | .get_msglevel = sis190_get_msglevel, | |
1771 | .set_msglevel = sis190_set_msglevel, | |
43afb949 | 1772 | .nway_reset = sis190_nway_reset, |
890e8d0a FR |
1773 | }; |
1774 | ||
43afb949 FR |
1775 | static int sis190_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
1776 | { | |
1777 | struct sis190_private *tp = netdev_priv(dev); | |
1778 | ||
1779 | return !netif_running(dev) ? -EINVAL : | |
1780 | generic_mii_ioctl(&tp->mii_if, if_mii(ifr), cmd, NULL); | |
1781 | } | |
1782 | ||
97488c5b SH |
1783 | static const struct net_device_ops sis190_netdev_ops = { |
1784 | .ndo_open = sis190_open, | |
1785 | .ndo_stop = sis190_close, | |
1786 | .ndo_do_ioctl = sis190_ioctl, | |
1787 | .ndo_start_xmit = sis190_start_xmit, | |
1788 | .ndo_tx_timeout = sis190_tx_timeout, | |
1789 | .ndo_set_multicast_list = sis190_set_rx_mode, | |
1790 | .ndo_change_mtu = eth_change_mtu, | |
1791 | .ndo_set_mac_address = eth_mac_addr, | |
1792 | .ndo_validate_addr = eth_validate_addr, | |
1793 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1794 | .ndo_poll_controller = sis190_netpoll, | |
1795 | #endif | |
1796 | }; | |
1797 | ||
890e8d0a FR |
1798 | static int __devinit sis190_init_one(struct pci_dev *pdev, |
1799 | const struct pci_device_id *ent) | |
1800 | { | |
1801 | static int printed_version = 0; | |
1802 | struct sis190_private *tp; | |
1803 | struct net_device *dev; | |
1804 | void __iomem *ioaddr; | |
830fb7d2 | 1805 | int rc; |
890e8d0a FR |
1806 | |
1807 | if (!printed_version) { | |
1808 | net_drv(&debug, KERN_INFO SIS190_DRIVER_NAME " loaded.\n"); | |
1809 | printed_version = 1; | |
1810 | } | |
1811 | ||
1812 | dev = sis190_init_board(pdev); | |
1813 | if (IS_ERR(dev)) { | |
1814 | rc = PTR_ERR(dev); | |
1815 | goto out; | |
1816 | } | |
1817 | ||
10487fbd FR |
1818 | pci_set_drvdata(pdev, dev); |
1819 | ||
890e8d0a FR |
1820 | tp = netdev_priv(dev); |
1821 | ioaddr = tp->mmio_addr; | |
1822 | ||
830fb7d2 FR |
1823 | rc = sis190_get_mac_addr(pdev, dev); |
1824 | if (rc < 0) | |
1825 | goto err_release_board; | |
890e8d0a | 1826 | |
830fb7d2 | 1827 | sis190_init_rxfilter(dev); |
890e8d0a | 1828 | |
c4028958 | 1829 | INIT_WORK(&tp->phy_task, sis190_phy_task); |
890e8d0a | 1830 | |
97488c5b SH |
1831 | dev->netdev_ops = &sis190_netdev_ops; |
1832 | ||
890e8d0a FR |
1833 | SET_ETHTOOL_OPS(dev, &sis190_ethtool_ops); |
1834 | dev->irq = pdev->irq; | |
1835 | dev->base_addr = (unsigned long) 0xdead; | |
97488c5b | 1836 | dev->watchdog_timeo = SIS190_TX_TIMEOUT; |
890e8d0a FR |
1837 | |
1838 | spin_lock_init(&tp->lock); | |
3690b6c1 FR |
1839 | |
1840 | rc = sis190_mii_probe(dev); | |
830fb7d2 FR |
1841 | if (rc < 0) |
1842 | goto err_release_board; | |
890e8d0a | 1843 | |
3690b6c1 | 1844 | rc = register_netdev(dev); |
fcb9821d | 1845 | if (rc < 0) |
3690b6c1 FR |
1846 | goto err_remove_mii; |
1847 | ||
e174961c | 1848 | net_probe(tp, KERN_INFO "%s: %s at %p (IRQ: %d), %pM\n", |
0795af57 | 1849 | pci_name(pdev), sis_chip_info[ent->driver_data].name, |
e174961c | 1850 | ioaddr, dev->irq, dev->dev_addr); |
890e8d0a | 1851 | |
900eb9d6 FR |
1852 | net_probe(tp, KERN_INFO "%s: %s mode.\n", dev->name, |
1853 | (tp->features & F_HAS_RGMII) ? "RGMII" : "GMII"); | |
1854 | ||
890e8d0a FR |
1855 | netif_carrier_off(dev); |
1856 | ||
1857 | sis190_set_speed_auto(dev); | |
1858 | out: | |
1859 | return rc; | |
830fb7d2 | 1860 | |
3690b6c1 FR |
1861 | err_remove_mii: |
1862 | sis190_mii_remove(dev); | |
830fb7d2 FR |
1863 | err_release_board: |
1864 | sis190_release_board(pdev); | |
1865 | goto out; | |
890e8d0a FR |
1866 | } |
1867 | ||
1868 | static void __devexit sis190_remove_one(struct pci_dev *pdev) | |
1869 | { | |
1870 | struct net_device *dev = pci_get_drvdata(pdev); | |
1871 | ||
fcb9821d | 1872 | sis190_mii_remove(dev); |
c014f6c8 | 1873 | flush_scheduled_work(); |
890e8d0a FR |
1874 | unregister_netdev(dev); |
1875 | sis190_release_board(pdev); | |
1876 | pci_set_drvdata(pdev, NULL); | |
1877 | } | |
1878 | ||
1879 | static struct pci_driver sis190_pci_driver = { | |
1880 | .name = DRV_NAME, | |
1881 | .id_table = sis190_pci_tbl, | |
1882 | .probe = sis190_init_one, | |
1883 | .remove = __devexit_p(sis190_remove_one), | |
1884 | }; | |
1885 | ||
1886 | static int __init sis190_init_module(void) | |
1887 | { | |
29917620 | 1888 | return pci_register_driver(&sis190_pci_driver); |
890e8d0a FR |
1889 | } |
1890 | ||
1891 | static void __exit sis190_cleanup_module(void) | |
1892 | { | |
1893 | pci_unregister_driver(&sis190_pci_driver); | |
1894 | } | |
1895 | ||
1896 | module_init(sis190_init_module); | |
1897 | module_exit(sis190_cleanup_module); |